referring to fig1 to fig3 which describe the structure of the present invention , a waist connection apparatus for an artificial model . the parts described therein are as follows : an upper main plate 31 , which is secured with screws 3141 through the screw holes 314 on the lower side of the upper half 41 of the display model 40 . the middle of this main plate consists of a round socket 311 . all around the edge of this socket 311 , there are several screw holes 3111 ; the center of this socket 311 consists of the hole 310 for the main mounting ; a lower main plate 32 , which is secured with screws 3241 through the screw holes 324 on the upper side of the lower half 42 of the display model 40 . the middle of this main plate consists of a round socket 321 . all around the edge of this socket 321 , there are several screw holes 3211 , the center of this socket 321 consists of the hole 320 for the main mounting ; an upper main mounting 1 , which is secured with screws 131 through the screw holes 13 on the above mentioned socket 311 of the upper main plate 31 . the middle of this upper main mounting 1 consists of a fixed , hollow body 11 , opened up to the lower side by a connecting opening 110 . on the lower part of the upper main mounting 1 , there is a protruding polygon base 111 as well as two small sleeves 15 , located in front of and behind the fixed , hollow body 11 . to the left and right sides of the fixed , hollow body 11 , there are two slit openings 12 . insides of these slit openings 12 there are securing plates 14 inserted . the part which consists of the slit openings 12 and the securing plates 14 has a full opening 122 , a securing hole 142 and screw holes 121 , 141 . screws 143 secure the construction through the screw holes 121 , 141 . by this process , the securing plates 14 are being attached to the slit openings 12 . a lower main mounting 2 , which is secured with screws 231 through the screw holes 23 on the above mentioned socket 321 of the lower main plate 32 . this lower main mounting 2 possesses a large central screw hole 20 . mounted in this central screw hole 20 is a control pole 21 , facing upwards . the lower end of the control pole 21 consists of a screw thread 212 , which is used to secure it in the central screw hole 20 . on the lower main mounting 2 there are two securing bodies 22 facing the securing holes 14 of the upper main mounting 1 . referring to fig4 and fig4 a , the relatively large openings of the securing holes 142 describe a form roughly resembling an “ 8 ”. in the connecting part between the hole with the larger diameter and the hole with the smaller diameter , there is a thin strip 1421 , which solves the purpose of helping to insert the insertion slit 221 of the securing bodies 22 into the securing hole 142 . referring to fig5 and fig5 a , that the securing hole 142 a roughly resembles the form of a calabash , also with a thin strip 1421 a attached . the difference between the structures described in fig4 and fig5 is , that the structure described in fig4 uses two - way securing holes 142 which give the securing bodies 22 two possible directions of attachment , while the structure described in fig5 uses one - way securing holes 142 a which give the securing bodies 22 only one possible direction of attachment . both structures can be exchanged depending on the practical usage . [ 0036 ] fig6 a and fig6 b show that the securing plates 14 are attached to the upper main mounting 1 through screw holes 141 , 141 b . there are also protruding conical forms 1411 , 1411 b to be seen , which stick out of the main mounting in upward direction . on the upper main mounting 1 there are indent forms 1311 which correspond with the protruding conical forms 1411 and which are able to take them in . through the use of these , fine tunings to the force of the securing plates 14 can be done . the protruding conical forms 1411 on the vertical axis of the securing plate are higher than the protruding conical forms 1411 b on the horizontal axis of the securing plates . as you can see in the picture , this gives you the ability to determine how deep the securing plates 14 will be drawn into the slit openings 12 of the upper main mounting 1 . the upper main plate 31 and the lower main plate 32 each have got eight screw holes 3111 , 3211 ordered in exact the same direction and distance . while joining the upper half 41 and the lower half 42 of the display model 40 together , the upper main mounting 1 and the lower main mounting 2 can be used to adjust the upper half 41 and the lower half 42 of the display model 40 to one of the eight possible directions . the control pole 21 will be inserted into the fixed , hollow body 11 . as shown in fig3 the lower main mounting 2 possesses a central screw hole . on the point of contact between the screw hole and the control pole 21 , there is a slight widening 211 or a conical bevel , which is used for a better and more secure connection . the two securing bodies 22 on the lower main mounting 2 can be inserted into the securing holes 142 of the securing plates 14 . please view fig4 to fig6 b . on the lower end of the securing bodies 22 there is a screw bolt 222 , which sticks through the insertion slit 24 of the lower main mounting 2 . just outside of the insertion slit 24 a spring 223 is wrapped around the screw bolt 222 . the end of the construction is secured by a nut 224 . this construction can be used to make fine tunings to the height and force of the securing bodies 22 . while the securing plates 14 are mounted on the slit openings 12 of the upper main mounting 1 , they are pushed to the inside . the advantage of this kind of construction is , that the securing bodies 22 upon entering the securing holes 142 and being turned slightly are being locked on the thin strip 1421 . this thin strip 1421 locks the securing bodies in and holds them tight . through this , a securing effect is reached . the securing bodies 142 will not be able to move anymore . referring to fig1 and fig7 the securing holes 142 of the securing plates 14 and the small sleeves 15 surround the connecting opening 110 of the upper main mounting 1 in a circle , each with exact the same distance to the center . to use the numbers of the clock face to describe it , the two securing plates 14 are located on the positions 3 o &# 39 ; clock and 9 o &# 39 ; clock , while the two small sleeves 15 are located on the positions 6 o &# 39 ; clock and 12 o &# 39 ; clock . after inserting the control pole 21 into the connecting opening 110 , the securing bodies 22 can be locked in the securing holes 142 through a slight turning movement . furthermore , you have the option to insert the securing bodies 22 into the small sleeves 15 , thus joining the upper and lower half of the artificial model without using the securing function of the securing plates 14 . this method provides a fast and convenient way to join artificial models together , which afterwards shall be used in upright positions . besides of this we can see in fig3 that the outer rim of the upper main plate 31 and the lower main plate 32 is formed of a thin , protruding edge 313 , 323 . this allows a small gap between the upper main plate 31 and the lower main plate 32 . furthermore it creates a smoother connection between the upper main plate 31 and the lower main plate 32 . to improve the symmetry between the upper main plate 31 and the lower main plate 32 , there are two fixed screw holes 314 , 324 left and right of the center of each plate . the effect of these screw holes 314 , 324 is to let the respective centers of the upper main plate 31 and the lower main plate 32 correspond exactly . by this means you can also use the upper and lower half of different display models together . the different models are thus freely interchangeable and do not have to be specifically adjusted to each other . this also furthers the economic use of the display model . now we want to take a further look at in fig8 and fig9 . on the lower side of the upper main mounting 1 , there is a protruding polygon base 111 . this base can be used together with a height - adjustable mounting seat 5 which possesses an indent polygon form 51 . this mounting seat 5 is fitted onto a central pole 6 . on the upper end of the mounting seat 5 there is a control pole 52 , which can be inserted into the connecting opening 110 . furthermore the mounting seat 5 possesses an adjusting screw 53 . the height of the mounting seat 5 and the central pole 6 can be adjusted through use of the adjusting screw 53 . through inserting the control pole 52 into the hollow body 11 an ideal position of weight balance will be found . the protruding polygon base 111 corresponds with the indent polygon form 51 . these two can be used to secure the position of the upper main mounting 1 . this can also be used to bring the upper main mounting 1 into a different position . in fig1 we see an example , how the upper main plate 31 and the lower main plate 32 can be attached to the lower half 42 and the upper half 41 of the artificial model 40 . in this example , the construction can even be used with an upside - down artificial model 40 . while the invention has been described with reference to preferred embodiments thereof , it is to be understood that modifications or variations may be easily made without departing from the spirit of this invention , which is defined by the appended claims .
a waist connection apparatus for an artificial model comprises an upper and a lower bases respectively , and an upper and a lower engaging disks respectively . the upper and the lower engaging disks are fastened to the upper and the lower bases respectively . the upper and the lower disks provide detachable connecting parts such that the upper and the lower parts of the model can be joined together or separated apart easily . hence , the waist connection apparatus makes the model possible to be hung up , lean to one side , and many other postures as desired by the need of exhibition . furthermore , the waist connection apparatus can fit any size of the model as soon as a proper sized waist connection apparatus is replaced .