An intensity detection device for finished dentures

Abstract

The present invention relates to the technical field of denture detection, and specifically relates to a strength detection device for finished dentures, which includes a deformation press. The upper end of the deformation press is connected to a detector main body that drives the deformation press to lift and lower. A denture is fixed on the detector main body platform at the lower end of the deformation press. The deformation press includes a base, an inner guide post, a main spring, a square box cylinder, a square well frame, an opposing unit, a slow-moving member, a horizontal control tool, a telescopic unit, an integrated horizontal control tool, and a Z-shaped pressing rod. A plurality of Z-shaped pressing rods are arranged in a matrix to form a detection pressure application surface. Each Z-shaped pressing rod can be lifted and lowered independently, so that the detection pressure application surface can be adapted and fitted to the irregular occlusal surface of the denture. When the detection pressure acts on the denture, the overall compressive strength of the denture can be detected. The present invention can also remove some of the Z-shaped pressing rods on the outer periphery for pressure application, and the detection pressure application area formed by the remaining Z-shaped pressing rods is reduced to imitate the situation of food getting stuck between teeth in life, and detect the compressive bearing capacity of the denture under the pressure of sharp objects.

Description

Technical Field

[0001] The present invention relates to the technical field of denture detection, and specifically provides a strength detection device for finished dentures. Background Art

[0002] Dentures refer to teeth that fulfill obligations for humans. Medically, they are the general term for prostheses made after partial or complete loss of the upper and lower teeth. Dentures are divided into removable and fixed types. Fixed dentures cannot be taken off or worn by patients themselves, while removable dentures can be conveniently taken off and worn by patients. After dental implant dentures are prepared, they need to be subjected to strength detection. The root of the dental implant is fixed on a platform, and the lifting and pressing head on the pressure detection instrument descends to press the occlusal surface of the denture. Since the occlusal surface of the denture is uneven, only part of the lifting and pressing head may contact the occlusal surface of the denture, resulting in inaccurate strength data of the denture detected. In the existing publicly available technology, there is a technology that uses a flexible fitting capsule filled with electrorheological fluid to adapt to and contact the irregular occlusal surface of the denture. The flexible fitting capsule fits with the occlusal surface of the denture, and then an electric current is applied to turn the electrorheological fluid into a solid state. Subsequently, the pressure can be applied to the denture by pressing the electrorheological fluid solid downward through the lifting and pressing mechanism. However, there is a problem of incomplete detection because the shape of the pressing solid above the denture remains unchanged, and only a single compressive strength data of the denture can be detected. If the object in contact with the occlusal surface of the denture can flexibly change its shape, for example, the sharpness and thickness of the bottom end of the pressing object can be flexibly changed, the compressive ability of the denture under the pressure of different sharp hard objects can be detected. In addition, it is also necessary to detect the situation after the sharp end of the object presses on various regions of the occlusal surface of the denture. For the purpose of flexibly and comprehensively detecting the strength of the denture, the present invention provides a strength detection device for finished dentures. Summary of the Invention

[0003] The purpose of the present invention is to provide a strength detection device for finished dentures to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A strength detection device for finished dentures, including a deformation press. The upper end of the deformation press is connected to a detector body that drives the deformation press to lift and lower. A denture is fixed on the detector body platform at the lower end of the deformation press. The deformation press includes:

[0005] A base installed on the detector body, an inner guide post fixed to the lower end of the base, and a main spring sleeved on the inner guide post;

[0006] A square box tube. The inner guide post slides through a thick hole opened on the top shell of the square box tube, and the main spring is supported between the base and the square box tube;

[0007] A square well frame. The square box tube slides up and down relative to each other in the square well frame, and the top end of the square well frame is fixed to the base;

[0008] The bottom shell of the square tube is penetrated by a plurality of matrix-distributed antagonist units, a corresponding slow-moving piece is inserted at the top of each antagonist unit, and a row of horizontal control tools for lifting and driving the antagonist units, and each horizontal control tool drives a row of antagonist units;

[0009] Each antagonistic unit has a correspondingly connected telescopic unit at the bottom end, and an integrated leveling control device for converting power during the deformation of the antagonistic unit, and the integrated leveling control device is fixed at the bottom end of the square derrick;

[0010] The bottom end of each telescopic unit corresponds to a connected Z-shaped pressure rod, and the bottom ends of multiple Z-shaped pressure rods are gathered to form a matrix arrangement. Each Z-shaped pressure rod can press down the denture independently, or be combined with other Z-shaped pressure rods of different numbers to press down the denture.

[0011] The confrontation unit includes:

[0012] A transformer column sliding through a through hole provided on the square frame tube, and a curved plate rack fixed on the transformer column;

[0013] The unit spring sleeved on the transformer column is supported between the square frame tube and the telescopic unit.

[0014] The lateral control device comprises:

[0015] A concave bracket with its ends fixed to the square derrick, and an integrated shaft supported on the square derrick;

[0016] A row of pressure wheels with a fixed sleeve on the integrated shaft, and a range extender group that establishes transmission between the pressure wheels and the curved plate rack.

[0017] The range-extending group includes a positioning seat fixed on a recessed bracket, a pressure-emitting body sliding through a square hole provided on the positioning seat, a range-extending shaft movably sleeved in a round hole provided on the positioning seat, and a range-extending gear fixed at one end of the range-extending shaft. The pressure-emitting wheel includes a ring plate and a plurality of protrusions provided on the outer side wall of the ring plate, and the integrated shaft drives a row of pressure-emitting wheels to rotate synchronously to select and control any pressure-emitting body to be pressed by the protrusions. A row of teeth is provided on the pressure-emitting body to mesh with the shaft gear provided at the other end of the range-extending shaft for transmission connection, and the range-extending gear is meshed with the curved plate rack for transmission connection.

[0018] The outside of the press-issue wheel is divided into multiple directions that are evenly arranged in a ring, and the number of the multiple directions is two to the power of N, N is equal to the number of press-issue wheels in a row of press-issue wheels, and whether there are protrusions in a single direction of each press-issue wheel is a situation, and the corresponding row of press-issue wheels is evenly arranged with N power protrusion arrangements on the outside.

[0019] The slow-moving member includes a cylinder barrel with a sliding cover on the top of the transformer column, a truncated cone seat arranged at a truncated cone hole in the middle of the cylinder barrel bottom plate, and a plurality of return spring pieces fixed around the cylinder barrel. The cylinder barrel is fixed on a support plate arranged on the square frame tube. One end of the return spring piece presses the truncated cone seat. A vent hole is opened in the middle of the truncated cone seat. A plurality of exhaust holes are evenly arranged around the truncated cone hole of the cylinder barrel, and the truncated cone seat blocks the exhaust holes by pressing the truncated cone hole.

[0020] The telescopic unit includes a pile column fixed at the bottom end of the transformer column, a pile plate that slides and rises and falls at the bottom end of the pile column, a thin rod fixed on one side of the pile plate, and a weak spring sleeved on the thin rod. The thin rod slides through a through hole opened on the pile column. The weak spring is supported between the pile column and the pile plate. A ring body for limiting the descending range of the pile plate is fixed on the thin rod. The pile plate is clamped by two concave rail bodies arranged on the pile column by setting a plate body. The bottom end of the pile plate is fixedly connected to the top end of the Z-shaped pressure rod.

[0021] The telescopic unit also includes a straight plate rack fixed on the pile column, and a brake position assembly for establishing synchronization between the pile column and the pile plate, and the integrated level control device establishes transmission between the straight plate rack and the brake position assembly.

[0022] The integrated level control device includes a square frame fixed on the square derrick, multiple flat shafts and driving shafts supported on the square frame, and a driving prism fixed coaxially with the driving shaft. A flat shaft and a driving shaft are distributed on one side of each pile column. The flat shaft is connected to the straight plate rack through a gear for meshing transmission. One end of the flat shaft is connected to the bevel gear fixed at the end of the driving shaft for changing direction transmission through a fixed bevel gear.

[0023] The brake position assembly includes a tail frame fixed on the pile column, an inner prism tube and a threaded column respectively movably sleeved in two through holes opened on the tail frame, two direction rods fixed on the pile column, and a brake control seat screwed with the threaded column. The brake control seat includes a cross plate and a concave plate fixed on one side of the cross plate. A frosted surface is arranged on the brake control seat and contacts with a frosted surface arranged on the pile plate to position the pile plate. The direction rod slides through the sliding hole opened on the brake control seat, and the threaded column passes through the threaded hole opened in the middle of the cross plate of the brake control seat. One end of the threaded column changes direction with the bevel gear fixed at the end of the inner prism tube through a fixed bevel gear, driving the bottom end of the prism column to slide and insert into the prism hole opened at the axis center of the inner prism tube.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The present invention forms a detection pressure surface by arranging multiple Z-shaped pressing rods in a matrix. Each Z-shaped pressing rod can be lifted and lowered independently, so that the detection pressure surface can be adapted to fit the irregular occlusal surface of the denture. When the detection pressure acts on the denture, the overall compressive strength of the denture can be detected. The present invention can also remove some of the Z-shaped pressing rods for peripheral pressure, and the detection pressure area formed by the remaining Z-shaped pressing rods is reduced to imitate the situation of food jamming the teeth in life, and the compressive bearing capacity of the denture under the pressure of sharp objects is detected.

[0026] 2. The present invention can also quickly realize the switching of the pressure application area. For example, after the bottom end of a single Z-shaped pressing rod finishes applying pressure, other Z-shaped pressing rods or a combination of a few Z-shaped pressing rods quickly apply pressure to the denture, and the Z-shaped pressing rods that have finished the pressure detection are stopped from supplying pressure, so that the two local pressure applications on the denture can be quickly switched. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic structural diagram of the present invention.

[0028] Figure 2 It is a schematic structural diagram of the deformation press.

[0029] Figure 3 It is a schematic structural diagram of the square tube.

[0030] Figure 4 It is a schematic structural diagram of the countermeasure unit.

[0031] Figure 5 It is a schematic structural diagram of the horizontal control tool.

[0032] Figure 6 It is a schematic structural diagram of the range extender group.

[0033] Figure 7 It is a schematic structural diagram of the pressure release wheel.

[0034] Figure 8 It is a schematic diagram of the position of the telescopic unit.

[0035] Figure 9 It is a schematic structural diagram of the slow-moving part.

[0036] Figure 10 It is a schematic diagram of the position of the Z-shaped pressing rod.

[0037] Figure 11 It is a schematic structural diagram of the telescopic unit.

[0038] Figure 12 It is a schematic structural diagram of the integrated flat control tool.

[0039] Figure 13 It is a schematic structural diagram of the pile column.

[0040] Figure 14 It is a schematic structural diagram of the brake position component.

[0041] In the figure: deformation press 1, detector main body 2, base 201, denture 3, inner guide post 4, main spring 5, square barrel 6, square derrick 7, counteracting unit 8, slow-moving part 9, horizontal controller 10, telescopic unit 11, integrated horizontal controller 12, Z-shaped pressing rod 13, curved plate rack 14, variable pressure column 15, unit spring 16, concave bracket 17, integrated shaft 18, pressure release wheel 19, range extender group 20, range extender gear 21, pressure release body 22, range extender shaft 23, beam position seat 24, return elastic piece 25, frustum seat 26, cylinder barrel 27, straight plate rack 28, pile column 29, thin rod 30, braking position assembly 31, pile plate 32, weak spring 33, flat shaft 34, driving shaft 35, square frame 36, driving prism 37, inner prism barrel 38, tail frame 39, direction rod 40, threaded column 41, braking control seat 42. Specific implementation mode

[0042] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the technical solutions in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0043] Please refer to Figures 1 to 14 , the present invention provides a technical solution: a strength detection device for finished dentures, including a deformation press 1, the upper end of the deformation press 1 is connected to a detector main body 2 for driving the deformation press 1 to lift and lower, and a denture 3 is fixed on the platform of the detector main body 2 at the lower end of the deformation press 1. The deformation press 1 includes:

[0044] A base 201 installed on the detector main body 2, an inner guide post 4 fixed to the lower end of the base 201, and a main spring 5 sleeved on the inner guide post 4;

[0045] A square barrel 6, the inner guide post 4 slides through a thick hole opened on the top shell of the square barrel 6, and the main spring 5 is supported between the base 201 and the square barrel 6;

[0046] A square derrick 7, the square barrel 6 slides up and down relative to each other in the square derrick 7, and the top end of the square derrick 7 is fixed to the base 201;

[0047] A plurality of matrix-distributed counteracting units 8 are penetrated through the bottom shell of the square barrel 6, a slow-moving part 9 inserted correspondingly at the top end of each counteracting unit 8, and a row of horizontal controllers 10 for lifting and driving the counteracting units 8. Each horizontal controller 10 correspondingly drives a row of counteracting units 8;

[0048] Each antagonistic unit 8 has a correspondingly connected bottom end with a telescopic unit 11 and an integrated leveling control device 12 for converting power during the deformation of the antagonistic unit 8, and the integrated leveling control device 12 is fixed to the bottom end of the square derrick 7;

[0049] The bottom end of each telescopic unit 11 is connected to a corresponding Z-shaped pressing rod 13, and the bottom ends of multiple Z-shaped pressing rods 13 are gathered to form a matrix arrangement. Each Z-shaped pressing rod 13 can press down the denture 3 independently, or be combined with other different numbers of Z-shaped pressing rods 13 to press down the denture 3.

[0050] refer to Figure 4 It is understood that the confrontation unit 8 includes:

[0051] A transformer column 15 slidingly passing through a through hole provided in the square frame tube 6, and a curved plate rack 14 fixed on the transformer column 15;

[0052] The unit spring 16 is sleeved on the transformer column 15 , and the unit spring 16 is supported between the square frame tube 6 and the telescopic unit 11 .

[0053] refer to Figure 5 It is understood that the lateral control device 10 includes:

[0054] A concave bracket 17 whose end is fixed on the square derrick 7, and an integrated shaft 18 supported on the square derrick 7, wherein the end of the integrated shaft 18 is movably sleeved in a through hole opened on the square derrick 7;

[0055] A row of pressure wheels 19 are fixedly sleeved on the integrated shaft 18, and a range extender group 20 is provided to establish transmission between the pressure wheels 19 and the curved plate rack 14.

[0056] refer to Figure 6 It is understood that the range-extending group 20 includes a position seat 24 fixed on the recessed bracket 17, a pressure-generating body 22 sliding through a square hole provided on the position seat 24, a range-extending shaft 23 movably sleeved in a round hole provided on the position seat 24, and a range-extending gear 21 fixed at one end of the range-extending shaft 23, the pressure-generating wheel 19 includes a ring plate and a plurality of protrusions provided on the outer side wall of the ring plate, and the integrated shaft 18 selects and controls any pressure-generating body 22 to be pressed by the protrusions by driving a row of pressure-generating wheels 19 to rotate synchronously, and a row of teeth is provided on the pressure-generating body 22 to mesh with the shaft gear provided at the other end of the range-extending shaft 23 for transmission connection, and the range-extending gear 21 is meshed with the curved plate rack 14 for transmission connection.

[0057] refer to Figure 7 It is understood that the outside of the pressing wheel 19 is divided into multiple directions that are evenly arranged in a ring, and the number of the multiple directions is two to the power of N, N is equal to the number of pressing wheels 19 in a row of pressing wheels 19, and whether there is a convex block in a single direction of each pressing wheel 19 is a situation, and the corresponding row of pressing wheels 19 is evenly arranged with N power convex block arrangements, refer to Figure 7There are four pressing wheels 19. Whether a single pressing wheel 19 presses the pressing body 22 has no effect on the pressing of the pressing body 22 by other pressing wheels 19. Sixteen directions are evenly arranged on the pressing wheel 19. Whether there is a convex block in one direction of the pressing wheel 19 is one situation. The sixteen directions after a row of pressing wheels 19 are combined correspond to sixteen convex block arrangements. Therefore, by rotating the integrated shaft 18, it can be selected to control whether any pressing body 22 in a row of pressing bodies 22 is pressed by the convex block. Figure 7 and Figure 8 There is a row of integrated shafts 18, each of which is connected to an independent driving mechanism, so that each integrated shaft 18 can rotate freely or remain stationary, and a row of transformer columns 15 corresponding to a single integrated shaft 18 can be independently lifted and lowered, so that all the transformer columns 15 arranged in the matrix, each transformer column 15 can be independently lifted and lowered relative to each other, or the transformer column 15 can be combined with other transformer columns 15 of different numbers to be lifted and lowered synchronously.

[0058] The transmission process from the integrated shaft 18 to the transformer column 15 is as follows: the integrated shaft 18 drives the pressure-issuing wheel 19 to rotate, the convex block on the pressure-issuing wheel 19 lifts the pressure-issuing body 22, the pressure-issuing body 22 descends and drives the range-extending shaft 23 to rotate, and then the range-extending gear 21 rotates to drive the curved plate rack 14 to rise, the curved plate rack 14 and the transformer column 15 rise synchronously, the transformer column 15 rises and pulls the telescopic unit 11, and the rise of the telescopic unit 11 releases the internal locking state, the transformer column 15 rises quickly and descends slowly, so that the pressure-issuing wheel 19 rotates flexibly, and stops for a while after the rotation ends, and then it is determined which convex block on the pressure-issuing wheel 19 presses the pressure-issuing body 22, or there is no convex block to press the pressure-issuing body. 22, the pressure-generating body 22 resets and rises to press against the pressure-generating wheel 19. The pressure source for the reset of the pressure-generating body 22 is the rebound force of the unit spring 16, that is, the speed of the slow-motion piece 9 is limited to avoid the frequent lifting and lowering of the transformer column 15. Because the two pressure protrusions on the pressure-generating wheel 19 are switching, there may be multiple protrusions passing by to press the pressure-generating body 22, which subsequently causes the transformer column 15 to rise and fall frequently. The slow-motion piece 9 limits the rapid descent of the transformer column 15, so that the transformer column 15 can be completely lowered only after the switching process is completed. Of course, the transformer column 15 may not fall, because after the rotation is completed, the protrusion of the pressure-generating wheel 19 presses the pressure-generating body 22, and the descent of the pressure-generating body 22 corresponds to the rise of the pressure-generating column 15.

[0059] refer to Figure 9It is understood that the slow moving member 9 includes a cylinder barrel 27 with a sliding cover on the top of the transformer column 15, a truncated cone seat 26 arranged at a truncated cone hole in the middle of the bottom plate of the cylinder barrel 27, and a plurality of return springs 25 fixedly arranged on the cylinder barrel 27. The cylinder barrel 27 is fixed on a support plate arranged on the square tube 6. One end of the return spring 25 presses the truncated cone seat 26. A vent hole is opened in the middle of the truncated cone seat 26. A plurality of exhaust holes are evenly arranged around the truncated cone hole of the cylinder barrel 27, and the truncated cone seat 26 blocks the exhaust hole by pressing the truncated cone hole. The principle of the movable part 9 limiting the fast rise and slow fall of the transformer column 15 is as follows: when the transformer column 15 is rising, the top end of the transformer column 15 is smoothly inserted into the cylinder barrel 27, the air in the cylinder barrel 27 rises to lift the pedestal seat 26, and then is discharged through the exhaust hole. After being discharged, the returning spring piece 25 applies pressure to make the pedestal seat 26 fall back. During the descending process of the transformer column 15, air needs to be replenished in the cylinder barrel 27, and the air can only be replenished through the vent hole in the middle of the pedestal seat 26. This air replenishing process lasts for a period of time, which causes the transformer column 15 to slowly descend.

[0060] The telescopic unit 11 includes a pile column 29 fixed at the bottom end of the transformer column 15, a pile plate 32 that slides and rises and falls at the bottom end of the pile column 29, a thin rod 30 fixed on one side of the pile plate 32, and a weak spring 33 sleeved on the thin rod 30. The thin rod 30 slides through a through hole opened on the pile column 29. The weak spring 33 is supported between the pile column 29 and the pile plate 32. A ring body for limiting the descending range of the pile plate 32 is fixed on the thin rod 30. The pile plate 32 is clamped by two concave rail bodies set on the pile column 29 by setting a plate body. The bottom end of the pile plate 32 is fixedly connected to the top end of the Z-shaped pressure bar 13.

[0061] The telescopic unit 11 also includes a straight plate rack 28 fixed on the pile column 29 and a brake position assembly 31 for establishing synchronization between the pile column 29 and the pile plate 32. The integrated leveling device 12 establishes transmission between the straight plate rack 28 and the brake position assembly 31.

[0062] The integrated level control device 12 includes a square frame 36 fixed on the square derrick 7, multiple flat shafts 34 and driving shafts 35 supported on the square frame 36, and a driving prism 37 coaxially fixed with the driving shaft 35. A flat shaft 34 and a driving shaft 35 are distributed on one side of each pile column 29. The flat shaft 34 is meshed and connected with the straight plate rack 28 through a gear. One end of the flat shaft 34 is connected to the bevel gear fixed at the end of the driving shaft 35 for direction change transmission through a fixed bevel gear. The flat shaft 34 and the driving shaft 35 are respectively movably sleeved in different through holes opened on the square frame 36.

[0063] The brake position assembly 31 includes a tail frame 39 fixed on the pile column 29, an inner prism barrel 38 and a threaded column 41 respectively movably sleeved in two through holes opened on the tail frame 39, two direction rods 40 fixed on the pile column 29, and a brake control seat 42 screwed to the threaded column 41. The brake control seat 42 includes a cross plate and a concave plate fixed on one side of the cross plate. A frosted surface is provided on the brake control seat 42 and a frosted surface is provided on the pile plate 32 to position the pile plate 32. The direction rod 40 slides through a slide hole opened on the brake control seat 42. The threaded column 41 passes through a threaded hole opened in the middle of the cross plate of the brake control seat 42. One end of the threaded column 41 is variably transmitted through a fixed bevel gear and a bevel gear fixed at the end of the inner prism barrel 38, and the bottom end of the driving prism 37 slides and inserts into a prism hole opened at the axis of the inner prism barrel 38.

[0064] Reference Figure 12 and Figure 14 , during the synchronous descent process of the voltage transformation column 15 and the pile column 29, the straight plate rack 28 descends relative to the flat square frame 36. The straight plate rack 28 drives the flat shaft 34, and then the driving shaft 35 drives the driving prism 37. Next, the inner prism barrel 38 drives the threaded column 41. The rotation of the threaded column 41 causes the brake control seat 42 to translate and press against the pile plate 32. After the two are in contact and locked, the pile column 29 and the pile plate 32 maintain a synchronous lifting and lowering state. The bottom end of the Z-shaped pressing rod 13 contacts the denture 3, and the pressure borne above the pile column 29 is transmitted downward to the denture 3. In this way, the detection pressure acts on the denture 3. On the contrary, when the voltage transformation column 15 rises and there is no locking situation, the pile column 29 and the pile plate 32 can slide relative to each other.

[0065] Preparation before descent: All the integrated shafts 18 rotate, so that the bumps of all the pressure generating wheels 19 press down the pressure generating body 22, correspondingly controlling all the voltage transformation columns 15 to rise. The voltage transformation column 15 drives the pile column 29. At this time, the weak spring 33 presses to separate the pile plate 32 and the pile column 29 to the maximum extent.

[0066] Next, reference Figure 3 , the deformation press 1 descends as a whole, and all the Z-shaped pressing rods 13 descend synchronously. After the Z-shaped pressing rods 13 contact the denture 3, the deformation press 1 continues to descend. The irregular occlusal surface of the denture 3 reversely presses the Z-shaped pressing rods 13. At this time, the Z-shaped pressing rods 13 and the pile plate 32 will rise relative to the pile column 29. Because the brake control seat 42 does not fit and lock with the pile plate 32, the occlusal surface of the denture 3 contacts the bottom ends of the Z-shaped pressing rods 13 with different stretching degrees. The contact surface formed by the bottom ends of all the Z-shaped pressing rods 13 is deformed to fit and conform to the occlusal surface of the denture 3. This is the same as the flexible fitting contact technology of the current-carrying electrorheological fluid-filled flexible fitting capsule in the prior art. This is the first full-coverage pressing detection method of the present invention.

[0067] The weak spring 33 presses to make the bottom end of the Z-shaped pressing rod 13 contact the denture 3, and after the Z-shaped pressing rod 13 is pushed back by the denture 3, it rises relative to the pile post 29. The micro-elastic force provided by the weak spring 33 can be ignored compared to the detection pressure during the strength detection of the denture 3. After the full-coverage adaptive contact ends, the entire deformation press 1 no longer descends, but the variable pressure column 15 inside descends relative to it. Because all the integrated shafts 18 rotate, correspondingly controlling that all the pressure-triggering bodies 22 are not pressed by the bumps of the pressure-triggering wheel 19, the unit spring 16 rebounds to make the variable pressure column 15 descend. When the variable pressure column 15 descends, it contacts and locks with the brake control seat 42 and the pile plate 32 below. After the variable pressure column 15 descends a short distance, the entire telescopic unit 11 descends along with the variable pressure column 15, and then the Z-shaped pressing rod 13 descends synchronously. The Z-shaped pressing rod 13 is pushed back by the denture 3, and the Z-shaped pressing rod 13 only has a tendency to descend, but the pressure from above directly acts on the denture 3. This pressure is the strength detection pressure, specifically the elastic force provided downward by the main spring 5. Further understanding, the unit spring 16 maintains its shape unchanged, and the upward and downward elastic forces of the unit spring 16 cancel each other out. The unit spring 16 can be understood as a solid without elastic force. Therefore, the pressure from the main spring 5 is finally evenly distributed to all the Z-shaped pressing rods 13 in contact with the denture 3.

[0068] However, the present invention can more comprehensively detect the strength and compressive resistance of the denture. The present invention also has a second local coverage compressive detection mode, for example Figure 3 all the bottom ends of the Z-shaped pressing rods 13 in press the denture 3. Next, lift the outermost circle of Z-shaped pressing rods 13, or lift one or more inner circles of Z-shaped pressing rods 13 inward. In this way, the combined surface of the multiple Z-shaped pressing rods 13 in adaptive contact with the occlusal surface of the denture 3 decreases, that is, the object pressing on the denture 3 becomes sharp. Considering the actual life, when a person eats food, it is possible that a sharp object grinds the teeth. Therefore, it is necessary to measure the situation where a sharp object presses the denture 3. During the process of lifting a single Z-shaped pressing rod 13, the braking source is the rotation of the integrated shaft 18 to make the bump of the pressure-triggering wheel 19 press the pressure-triggering body 22, and subsequent transmission causes the variable pressure column 15 to rise. The variable pressure column 15 lifts the pile post 29. After the pile post 29 rises, the locking situation in the brake position assembly 31 is broken. Although the bottom end of the Z-shaped pressing rod 13 still contacts the denture 3, the pile plate 32 and the pile post 29 can slide relative to each other, that is, the detection pressure on the Z-shaped pressing rod 13 disappears. Figure 3 In, the downward detection pressure of all the outermost Z-shaped pressing rods 13 disappears. Overall, it can be understood that the bottom end of the solid acting on the denture 3 becomes sharp.

[0069] Although the bottom end of the object acting on the denture 3 becomes sharp, the downward pressure of the main spring 5 remains unchanged. The reduced area leads to an increase in pressure, that is, the detection pressure exerted by the sharp end on the denture 3 automatically increases, which may directly damage the denture 3. The purpose of the present invention is to detect whether the denture 3 can remain intact within a specified pressure. If the denture 3 withstands the pressure and remains intact, it can be installed and used by people. However, the unexpected increase in sharp pressure directly damages the denture 3, deviating from the purpose of strength detection. Therefore, when the pressure-applying end of the object becomes sharp, it is necessary to offset part of the pressure on the main spring 5, so that the pressure at the sharp bottom end of the object is close to or the same as that at the initial non-sharp bottom end, and the detection can be successfully completed under the pressure of the sharp object. The specific principle of offsetting the pressure: The Z-shaped pressure rod 13 rises because the corresponding pressure-changing column 15 rises. The rising pressure-changing column 15 lifts the pile column 29. The rising of the pile column 29 causes the unit spring 16 to be compressed. The upward elastic force provided by the unit spring 16 to the square box cylinder 6 increases, and the square box cylinder 6 will rise a short distance, that is, the upward elastic force of the unit spring 16 is transmitted to the main spring 5 through the square box cylinder 6, offsetting part of the pressure on the main spring 5. In this way, when one Z-shaped pressure rod 13 rises, part of the pressure of the main spring 5 is offset, and the combined contact surface of the Z-shaped pressure rods 13 remaining in contact with the denture 3 becomes smaller, but the detection pressure from above also becomes smaller, and there will be no problem of increased pressure caused by the reduced pressure surface. Similarly, the more the pressure-changing columns 15 that rise and lift, the more unit springs 16 will exert upward pressure to offset more pressure on the main spring 5.

[0070] The present invention also has a third detection mode, which is the function of quickly changing the sharp pressure-applying points. For the sake of straightforward understanding, only one Z-shaped pressure rod 13 is selected to press the denture 3 to detect the compressive strength of the denture 3. At this time, all the remaining Z-shaped pressure rods 13 still contact the denture 3, but the weak spring 33 provides elastic force to the remaining Z-shaped pressure rods 13, that is, the remaining Z-shaped pressure rods 13 only make contact without applying detection pressure. One Z-shaped pressure rod 13 applies pressure to the denture 3 to detect the influence caused by local sharpness. It is necessary to replace another Z-shaped pressure rod 13 to apply pressure to detect the situation where other local areas of the denture 3 are sharply pressed. Specifically, the pressure-changing column 15 corresponding to the upper part of the next pressure-applying Z-shaped pressure rod 13 descends, thereby establishing a new pressure-applying channel. In this way, another Z-shaped pressure rod 13 presses down on the denture 3, and the pressure applied by the previous Z-shaped pressure rod 13 that has completed the detection is cancelled. It only needs to control the corresponding pressure-changing column 15 above to rise, that is, the internal locked state in the telescopic unit 11 above the original Z-shaped pressure rod 13 disappears, and the state between the pile column 29 and the pile plate 32 returns to a state where they can slide relative to each other.

[0071] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intensity detection device for finished dentures, comprising a deformation press, the upper end of the deformation press is connected to a detector main body for driving the deformation press to lift and lower, and a denture is fixed on the detector main body platform at the lower end of the deformation press, and it is characterized in that: The deformation press includes: A base installed on the main body of the detector, an inner guide post fixed to the lower end of the base, and a main spring sleeved on the inner guide post; A square box cylinder, the inner guide post sliding through a thick hole opened on the top shell of the square box cylinder, and the main spring supporting between the base and the square box cylinder; A square derrick, the square box cylinder sliding up and down relatively in the square derrick, and the top end of the square derrick fixed to the base; Multiple confrontation units distributed in a matrix through the bottom shell of the square box cylinder, a slow-moving part inserted correspondingly at the top end of each confrontation unit, and a row of horizontal controllers for lifting and driving the confrontation units, each horizontal controller correspondingly driving a row of confrontation units; A telescopic unit correspondingly connected to the bottom end of each confrontation unit, and an integrated horizontal controller for converting power during the deformation of the confrontation unit, the integrated horizontal controller fixed to the bottom end of the square derrick; A Z-shaped pressing rod correspondingly connected to the bottom end of each telescopic unit, and the bottom ends of multiple Z-shaped pressing rods gathering to present a matrix arrangement, each Z-shaped pressing rod can independently press the denture, or combine with other Z-shaped pressing rods with different quantities to press the denture; The confrontation unit includes: A variable pressure column sliding through a through hole opened on the square box cylinder, and a curved plate rack fixed on the variable pressure column; A unit spring sleeved on the variable pressure column, the unit spring supporting between the square box cylinder and the telescopic unit; The telescopic unit includes a pile column fixed to the bottom end of the variable pressure column, a pile plate sliding up and down at the bottom end of the pile column, a thin rod fixed on one side of the pile plate, and a weak spring sleeved on the thin rod, the thin rod sliding through a through hole opened on the pile column, the weak spring supporting between the pile column and the pile plate, a ring body for limiting the descending range of the pile plate fixed on the thin rod, and the pile plate being clamped by two concave rail bodies arranged on the pile column through a plate body, and the bottom end of the pile plate fixedly connected to the top end of the Z-shaped pressing rod; The telescopic unit further includes a straight plate rack fixed on the pile column, and a braking component for establishing synchronization between the pile column and the pile plate, and the integrated horizontal controller establishing transmission between the straight plate rack and the braking component.

2. The strength detection device for finished dentures according to claim 1, characterized in that: The horizontal controller includes: A concave bracket with the end fixed to the square derrick, and an integrated shaft supported on the square derrick; A row of pressure release wheels fixedly sleeved on the integrated shaft, and an extension group for establishing transmission between the pressure release wheel and the curved plate rack.

3. The strength detection device for finished dentures according to claim 2, characterized in that: The extension group includes a beam position seat fixed on the concave bracket, a pressure release body sliding through a square hole opened on the beam position seat, an extension shaft movably sleeved in a round hole opened on the beam position seat, and an extension gear fixed to one end of the extension shaft. The pressure release wheel includes a ring plate and multiple convex blocks arranged on the outer side wall of the ring plate, and the integrated shaft drives a row of pressure release wheels to rotate synchronously to select and control any pressure release body to be pressed by the convex blocks. A row of teeth is arranged on the pressure release body to mesh and drive connection with an axle gear arranged at the other end of the extension shaft, and the extension gear meshes and drives connection with the curved plate rack.

4. The strength detection device for finished dentures according to claim 3, characterized in that: The outer part of the pressure release wheel is evenly ringed with multiple directions, and the number of multiple directions is the power of 2 to the Nth power, N being equal to the number of pressure release wheels in a row of pressure release wheels. Whether the convex blocks in a single direction of each pressure release wheel exist is a situation, corresponding to a total of 2 to the Nth power of convex block arrangement methods evenly ringed on the outside of a row of pressure release wheels.

5. The strength detection device for finished dentures according to claim 1, characterized in that: The slow-moving member includes a cylinder barrel slidably sleeved on the top end of the transformer column, a truncated cone seat disposed at the middle of the bottom plate of the cylinder barrel where a truncated cone hole is formed, and a plurality of return elastic pieces fixedly arranged in a ring on the cylinder barrel. The cylinder barrel is fixed on a support plate arranged on the square barrel. One end of the return elastic piece presses the truncated cone seat. A vent hole is formed in the middle of the truncated cone seat. A plurality of exhaust holes are evenly arranged in a ring around the truncated cone hole of the cylinder barrel. And the truncated cone seat blocks the exhaust holes by pressing the truncated cone hole.

6. The strength detection device for finished dentures according to claim 1, characterized in that: The integrated flat control tool includes a flat square frame fixed on the square derrick, a plurality of flat shafts and driving shafts supported on the flat square frame, and a driving prism fixedly arranged coaxially with the driving shaft. One flat shaft and one driving shaft are correspondingly distributed on one side of each pile column. The flat shaft is meshed and drivingly connected with a straight plate rack through a gear. One end of the flat shaft is drivingly transmitted in a reverse direction with a bevel gear fixed at the end of the driving shaft through a fixed bevel gear.

7. The strength detection device for finished dentures according to claim 6, characterized in that: The braking position assembly includes a tail frame fixed on the pile column, an inner prism barrel and a threaded column respectively movably sleeved in two through holes formed in the tail frame, two direction rods fixed on the pile column, and a braking control seat screwed to the threaded column. The braking control seat includes a cross plate and a concave plate fixed on one side of the cross plate. A frosted surface is arranged on the braking control seat and contacts with a frosted surface arranged on the pile plate to position the pile plate. The direction rod slidably passes through a slide hole formed in the braking control seat. The threaded column passes through a threaded hole formed in the middle of the cross plate of the braking control seat. One end of the threaded column is drivingly transmitted in a reverse direction with a bevel gear fixed at the end of the inner prism barrel through a fixed bevel gear. The bottom end of the driving prism slides and inserts into a prism hole formed at the axis of the inner prism barrel.

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