Skeletal mechanical property testing system

Abstract

The utility model discloses a skeleton mechanical property testing system, which belongs to the technical field of biomechanical experiment instruments and comprises a clamp base, two support plates are arranged on the clamp base, a distance adjusting component used for adjusting the distance between the two support plates is arranged on the clamp base, and the opposite sides of the two support plates are respectively and detachably connected with a profiling clamping plate; a moving mechanism is arranged on the support, a probe is arranged at the output end of the moving mechanism, the moving mechanism is used for driving the probe to move in the transverse direction, the longitudinal direction and the vertical direction, and a pressure sensor and a displacement sensor are fixedly connected to a shell of the probe. The profiling clamping plate is manufactured according to the shape of a skeleton, the positioning effect is good, different profiling clamping plates can be replaced according to different skeleton shapes, measurement of different skeletons is achieved, the universality of the device is improved, operation is easy, and measurement is convenient and fast.

Description

Technical Field

[0001] This utility model relates to the field of biomechanical experimental equipment technology, and in particular to a system for testing the mechanical properties of bones. Background Technology

[0002] Skeleton is a hard organ that makes up the endoskeleton of vertebrates. Its functions include movement, support, and protection of the body. Testing the mechanical properties of skeletons is of great significance for researching bone-related diseases or treating bone injuries. Orthopedic biomechanical testing and measurement methods include mechanical testing methods, contact measurement methods, and non-contact measurement methods. Among them, mechanical testing methods mainly rely on existing testing equipment. The commonly used traditional instrument is the hydraulic universal testing machine. However, this type of equipment is complex to operate, difficult to locate irregularly shaped skeletons, and the clamps are not convenient to change according to different skeletons.

[0003] To address this, a system for testing skeletal biomechanical properties is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a skeletal biomechanical property testing system, which aims to solve or improve at least one of the above-mentioned technical problems.

[0005] To achieve the above objectives, this utility model provides the following solution: This utility model provides a skeletal biomechanical property testing system, comprising:

[0006] A clamp base is provided with two support plates and a spacing adjustment component for adjusting the distance between the two support plates. A contour clamp is detachably connected to one side of each of the two support plates.

[0007] A support frame is provided with a moving mechanism. A probe is provided at the output end of the moving mechanism. The moving mechanism is used to drive the probe to move horizontally, vertically, and longitudinally. A pressure sensor and a displacement sensor are fixedly connected to the outer shell of the probe.

[0008] Preferably, the spacing adjustment assembly includes a groove formed on the top of the clamp base, a lead screw rotatably connected in the groove, a lead screw slider threaded onto the lead screw, one end of the lead screw extending out of the side wall of the clamp base and fixedly connected to a first adjusting rod; one of the support plates is fixedly connected to the top of the clamp base, another support plate is slidably connected to the top of the clamp base, and the other support plate is fixedly connected to the lead screw slider.

[0009] Preferably, the support plate and the conformal clamp are detachably connected by a plurality of fastening bolts.

[0010] Preferably, the moving mechanism includes two longitudinal guide rails, which are respectively located on both sides of the clamp base. Two transverse guide rails are arranged between the two longitudinal guide rails. Longitudinal sliders are fixedly connected to the bottom sides of the transverse guide rails and are slidably connected to the longitudinal guide rails. A first positioning component is provided on the longitudinal slider and is detachably connected to the longitudinal guide rail. A hydraulic cylinder base is arranged between the two transverse guide rails. Multiple transverse sliders are fixedly connected to the bottom sides of the hydraulic cylinder base and are slidably connected to the transverse guide rails. A second positioning component is provided on the transverse slider and is detachably connected to the transverse guide rail. A lifting component is provided on the hydraulic cylinder base, and the probe is provided at the output end of the lifting component.

[0011] Preferably, the lifting assembly includes a hydraulic cylinder fixed to the hydraulic cylinder base, the hydraulic cylinder being located above the clamp base, the output end of the hydraulic cylinder being fixed to a threaded rod, the probe having a threaded groove, and the threaded rod being threadedly connected to the threaded groove.

[0012] Preferably, the first positioning component includes a longitudinal positioning plate fixed to the longitudinal slider, the longitudinal positioning plate being located on one side of the longitudinal guide rail, and a second adjusting rod being threadedly connected to the longitudinal positioning plate, the second adjusting rod abutting against the side wall of the longitudinal guide rail.

[0013] Preferably, the second positioning component includes a transverse positioning plate fixed to the transverse slider, the transverse positioning plate being located on one side of the transverse guide rail, and a third adjusting rod being threadedly connected to the transverse positioning plate, the third adjusting rod abutting against the side wall of the transverse guide rail.

[0014] Preferably, the bottom of the clamp base is fixedly connected to a platform base plate, and the two longitudinal guide rails are fixedly connected to the platform base plate by multiple support columns.

[0015] This utility model discloses the following technical effects: the spacing between the two contoured clamps is adjusted by the spacing adjustment component, thereby facilitating the clamping and positioning of the bone; the probe is moved above the bone to be measured by the moving mechanism, so that the pressure sensor contacts the bone and continuously increases the contact pressure, the displacement sensor measures the displacement change during the pressurization process, and the probe monitors the process, thereby realizing the measurement of the mechanical properties of the bone; the contoured clamps are made according to the shape of the bone, with good positioning effect, and different contoured clamps can be replaced according to different bone shapes to realize the measurement of different bones, improve the versatility of the device, and are simple to operate and convenient to measure. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 This is an isometric view of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the first positioning component and the second positioning component in this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the mid-gap adjustment component of this utility model;

[0020] Figure 4 This is a schematic diagram of the installation structure of the hydraulic cylinder base and the probe in this utility model.

[0021] In the diagram: 1. Fixture base; 2. Support plate; 3. Contouring clamp; 4. Probe; 5. Groove; 6. Lead screw; 7. Support column; 8. First adjusting rod; 9. Fastening bolt; 10. Longitudinal guide rail; 11. Transverse guide rail; 12. Longitudinal slider; 13. Hydraulic cylinder base; 14. Transverse slider; 15. Hydraulic cylinder; 16. Connecting block; 17. Threaded rod; 18. Longitudinal positioning plate; 19. Second adjusting rod; 20. Transverse positioning plate; 21. Third adjusting rod; 22. Platform base plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Reference Figures 1-4 This utility model provides a bone biomechanical property testing system, comprising:

[0025] The fixture base 1 has two support plates 2 on it and a spacing adjustment component for adjusting the distance between the two support plates 2. The two support plates 2 are detachably connected to the opposite sides of each other.

[0026] The bracket is equipped with a moving mechanism. The output end of the moving mechanism is equipped with a probe 4. The moving mechanism is used to drive the probe 4 to move in the horizontal, vertical and longitudinal directions. A pressure sensor (not shown in the figure) and a displacement sensor (not shown in the figure) are fixedly connected to the outer shell of the probe 4.

[0027] The spacing between the two contoured clamps 3 is adjusted by the spacing adjustment component, which facilitates the clamping and positioning of the bone. The moving mechanism moves the probe 4 above the bone to be measured, so that the pressure sensor contacts the bone and the contact pressure is continuously increased. The displacement sensor measures the displacement change during the pressurization process, and the probe 4 monitors the process, thereby realizing the measurement of the mechanical properties of the bone. The contoured clamps 3 are made according to the shape of the bone, with good positioning effect. Different contoured clamps 3 can be replaced according to different bone shapes to realize the measurement of different bones, improve the versatility of the device, and are simple to operate and convenient to measure.

[0028] Further optimization of the scheme: the spacing adjustment component includes a groove 5 opened on the top of the clamp base 1, a lead screw 6 rotatably connected in the groove 5, a lead screw slider (not shown in the figure) threaded on the lead screw 6, one end of the lead screw 6 extending out of the side wall of the clamp base 1 and fixedly connected to a first adjusting rod 8; any support plate 2 is fixedly connected to the top of the clamp base 1, another support plate 2 is slidably connected to the top of the clamp base 1, and the other support plate 2 is fixedly connected to the lead screw slider;

[0029] By manually rotating the first adjusting rod 8, the lead screw 6 is rotated, which in turn moves the support plate 2, thereby adjusting the distance between the two contour clamps 3 on the two support plates 2, and thus achieving the clamping and positioning of the skeleton.

[0030] The design has been further optimized so that the support plate 2 and the contour clamping plate 3 can be detachably connected by multiple fastening bolts 9;

[0031] Different profile clamps 3 can be replaced by multiple fastening bolts 9.

[0032] Further optimization of the scheme: the moving mechanism includes two longitudinal guide rails 10, which are located on both sides of the fixture base 1. Two transverse guide rails 11 are arranged between the two longitudinal guide rails 10. Longitudinal sliders 12 are fixedly connected to the bottom sides of the transverse guide rails 11, and the longitudinal sliders 12 are slidably connected to the longitudinal guide rails 10. A first positioning component is provided on the longitudinal sliders 12 and detachably connected to the longitudinal guide rails 10. A hydraulic cylinder base 13 is arranged between the two transverse guide rails 11. Multiple transverse sliders 14 are fixedly connected to the bottom sides of the hydraulic cylinder base 13, and the transverse sliders 14 are slidably connected to the transverse guide rails 11. A second positioning component is provided on the transverse sliders 14 and detachably connected to the transverse guide rails 11. A lifting component is provided on the hydraulic cylinder base 13, and a probe 4 is provided at the output end of the lifting component.

[0033] Both the longitudinal slider 12 and the transverse slider 14 are I-shaped sliders. The longitudinal guide rail 10 and the transverse guide rail 11 are respectively provided with inverted T-shaped grooves. The longitudinal slider 12 and the transverse slider 14 slide in the inverted T-shaped grooves to achieve the vertical positioning of the longitudinal slider 12 and the transverse slider 14.

[0034] Further optimization of the scheme: the first positioning component includes a longitudinal positioning plate 18 fixed to the longitudinal slider 12. The longitudinal positioning plate 18 is located on one side of the longitudinal guide rail 10. A second adjusting rod 19 is threadedly connected to the longitudinal positioning plate 18. The second adjusting rod 19 abuts against the side wall of the longitudinal guide rail 10.

[0035] The second positioning component includes a transverse positioning plate 20 fixed to the transverse slider 14. The transverse positioning plate 20 is located on one side of the transverse guide rail 11. A third adjusting rod 21 is threaded onto the transverse positioning plate 20. The third adjusting rod 21 abuts against the side wall of the transverse guide rail 11.

[0036] After moving the probe 4 above the bone being measured, rotate the second adjusting rod 19 so that it abuts against the side wall of the longitudinal guide rail 10, and rotate the third adjusting rod 21 so that it abuts against the side wall of the transverse guide rail 11, thereby achieving horizontal positioning of the probe 4.

[0037] The solution is further optimized. The lifting assembly includes a hydraulic cylinder 15 fixed on the hydraulic cylinder base 13. The hydraulic cylinder 15 is located above the clamp base 1. The output end of the hydraulic cylinder 15 is fixed with a threaded rod 17. The probe 4 has a threaded groove, and the threaded rod 17 is threadedly connected to the threaded groove.

[0038] The hydraulic cylinder 15 is fixed to the hydraulic cylinder base 13 via the connecting block 16; the threaded rod 17 is threadedly connected to the threaded groove to meet the installation requirements of different probes 4 and can be used for different testing needs.

[0039] After the probe 4 is positioned in the horizontal direction, the hydraulic cylinder 15 drives the probe 4 to descend at a constant speed, so that the pressure sensor comes into contact with the bone and is continuously pressurized. The pressure sensor measures the contact pressure, and the displacement sensor measures the displacement change of the distance between the probe 4 and the bone during the pressurization process, thereby realizing the measurement of the mechanical properties of the bone.

[0040] The design is further optimized so that the bottom of the fixture base 1 is fixedly connected to the platform base plate 22, and the two longitudinal guide rails 10 are fixedly connected to the platform base plate 22 by multiple support columns 7.

[0041] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0042] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A bone mechanical property testing system, characterized by, Include: Clamp base (1), two support plates (2) are arranged on the clamp base (1), the spacing adjusting assembly for adjusting the spacing between two support plates (2) is arranged on the clamp base (1), and the opposite side of two support plates (2) is respectively detachably connected with a profiling clamp plate (3); Support, the moving mechanism is provided on the support, the output end of the moving mechanism is provided with a probe (4), the moving mechanism is used for driving the probe (4) to move along the transverse, longitudinal and vertical directions, and the shell of the probe (4) is fixedly connected with a pressure sensor and a displacement sensor.

2. The bone mechanics testing system of claim 1, wherein: The spacing adjusting assembly includes a groove (5) formed in the top of the clamp base (1), a lead screw (6) is rotatably connected in the groove (5), a lead screw slider is threadedly sleeved on the lead screw (6), one end of the lead screw (6) extends out of the side wall of the clamp base (1) and is fixedly connected with a first adjusting rod (8); any support plate (2) is fixedly connected on the top of the clamp base (1), and the other support plate (2) is slidably connected with the top of the clamp base (1), and the other support plate (2) is fixedly connected with the lead screw slider.

3. The bone mechanics testing system of claim 1, wherein: The support plate (2) and the profiling clamp plate (3) are detachably connected through a plurality of fastening bolts (9).

4. The bone mechanics testing system of claim 1, wherein: The moving mechanism includes two longitudinal guide rails (10), two longitudinal guide rails (10) are respectively located on both sides of the clamp base (1), two transverse guide rails (11) are arranged between the two longitudinal guide rails (10), longitudinal sliding blocks (12) are respectively fixedly connected on both sides of the bottom of the transverse guide rail (11), the longitudinal sliding blocks (12) are slidably connected with the longitudinal guide rails (10), and the longitudinal sliding blocks (12) are provided with first positioning assemblies which are detachably connected with the longitudinal guide rails (10); a hydraulic cylinder base (13) is arranged between the two transverse guide rails (11), a plurality of transverse sliding blocks (14) are respectively fixedly connected on both sides of the bottom of the hydraulic cylinder base (13), the transverse sliding blocks (14) are slidably connected with the transverse guide rails (11), the transverse sliding blocks (14) are provided with second positioning assemblies which are detachably connected with the transverse guide rails (11), and a lifting assembly is arranged on the hydraulic cylinder base (13), and the output end of the lifting assembly is provided with the probe (4).

5. The bone mechanics testing system of claim 4, wherein: The lifting assembly includes a hydraulic cylinder (15) fixedly connected on the hydraulic cylinder base (13), the hydraulic cylinder (15) is located above the clamp base (1), a threaded rod (17) is fixedly connected to the output end of the hydraulic cylinder (15), a threaded groove is formed in the probe (4), and the threaded rod (17) is threadedly connected with the threaded groove.

6. The bone mechanics testing system of claim 4, wherein: The first positioning assembly includes a longitudinal positioning plate (18) fixedly connected on the longitudinal sliding block (12), the longitudinal positioning plate (18) is located on one side of the longitudinal guide rail (10), a second adjusting rod (19) is threadedly connected on the longitudinal positioning plate (18), and the second adjusting rod (19) abuts against the side wall of the longitudinal guide rail (10).

7. The bone mechanics testing system of claim 4, wherein: The second positioning assembly comprises a transverse positioning plate (20) fixed to the transverse sliding block (14), which is located on one side of the transverse guide rail (11), and a third adjusting rod (21) is threadedly connected to the transverse positioning plate (20), and the third adjusting rod (21) is in abutment with the side wall of the transverse guide rail (11).

8. The bone mechanics testing system of claim 4, wherein: The bottom of the clamp base (1) is fixed with a platform bottom plate (22), and the two longitudinal guide rails (10) are fixed to the platform bottom plate (22) through a plurality of support columns (7).

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