Acupuncture needle tension testing device

Abstract

The present invention relates to the technical field of tension testing, and provides an acupuncture needle tension testing device, comprising a shell mechanism, a tension testing mechanism, a driving mechanism and an auxiliary testing mechanism. A clamping block and a stopper can clamp and fix the needle body from two positions, upper and lower, to prevent the problem of inaccurate measurement data due to the bending of the needle body itself when the needle body is long. A rotating longitudinal threaded tube is threadedly connected with a longitudinal threaded rod to drive the first tension testing mechanism, the driving mechanism and the auxiliary testing mechanism to move along the axial direction of the needle body as a whole, so that a support plate contacts the needle tip at the end of the needle body, and an initial length L1 of the needle body is measured according to a displacement sensor. When the pressure sensor detects that the pressure from the needle handle is 9N, the final length L2 of the needle body is measured by the displacement sensor. The tensile performance or connection firmness performance of the needle body is judged by the size of the above two length differences, thereby realizing the characteristics of intelligent, efficient and accurate testing of the tensile testing capability of acupuncture needles.

Description

Technical Field

[0001] The invention relates to the field of tension testing, and in particular to an acupuncture needle tension testing device. Background Art

[0002] Modern acupuncture needles are generally composed of a needle body, a needle tip and a needle handle. The front end of the needle body is the needle tip, and the back end is the needle handle. The needle body and the needle tip are smooth, while the needle handle is threaded, which is for lifting, inserting and twisting when in use. In order to ensure the safety of acupuncture treatment, the national standard GB2024-94 "Acupuncture Needles" clearly stipulates that the connection between the needle body and the needle handle is firm, and the axial displacement of the two shall not exceed 3mm in a pull-out test under a force of 9N.

[0003] In the prior art, the acupuncture needle tensile test is generally performed using an acupuncture needle connection force tester. The test principle is:

[0004] The acupuncture needle sample is clamped between the two chucks of the acupuncture needle connection force tester. The two chucks move relative to each other, and the pull-out test is carried out through the special chuck. The force value change and displacement change in this process are accurately tested through the tear force meter force measurement system. The corresponding force value data is obtained.

[0005] Main steps: first measure the length of the needle body, then fix the needle body in the fixture, perform a non-impact pulling test on the end face of the needle handle along the axial direction of the needle body according to the force specified in Article 4.8, and then measure the length of the needle body.

[0006] When the needle body is bent, the first needle body length data obtained by the acupuncture needle connection force tester is the length in the bent state. When the needle body is subjected to a pulling force, the bending amplitude of the needle body will decrease within a certain range. In this way, the second needle body length data obtained by the acupuncture needle connection force tester is not complete data after the needle body is displaced axially. Therefore, the experimental result data obtained is not accurate. Summary of the invention

[0007] The purpose of the present invention is to provide an acupuncture needle tension testing device, aiming to solve the problems existing when using an existing acupuncture needle tension testing device.

[0008] To achieve the above object, the present invention provides the following technical solution: an acupuncture needle tension test device, comprising a computer control module, including:

[0009] A housing mechanism, the housing mechanism comprising a sealing shell, a test tube, a transverse guide rail and a longitudinal threaded rod, the test tube and the longitudinal threaded rod are both fixedly connected to the sealing shell, a transverse guide rail is provided between the sealing shell and the test tube, and the computer control module is fixedly connected to the sealing shell;

[0010] A tension testing mechanism, the tension testing mechanism comprising a support plate, a longitudinal tube shell, a longitudinal threaded tube, a first transmission gear and a displacement sensor, the longitudinal tube shell and the displacement sensor are both fixedly connected to the support plate, the longitudinal threaded tube is movably connected to the longitudinal tube shell, the longitudinal threaded rod is threadedly connected to the longitudinal threaded tube, and the first transmission gear is fixedly connected to the longitudinal threaded tube;

[0011] A driving mechanism connected to one side of the longitudinal tube shell, the driving mechanism comprising a driving gear, a magnetic ring and an electromagnet, the surface of the driving gear is inlaid with a magnetic ring, the electromagnet is magnetically connected to the magnetic ring, and the first transmission gear is transmission-connected to one side of the driving gear;

[0012] An auxiliary testing mechanism connected to one side of the longitudinal tube shell, the auxiliary testing mechanism includes a transmission housing, a transverse threaded tube, a second transmission gear, a transverse threaded rod, a longitudinal linkage rod, a block, a pressure sensor and a clamping block, the transmission housing and the transverse threaded tube are both connected to the longitudinal tube shell, the other side of the driving gear is transmission-connected to the transmission housing, the second transmission gear is fixedly connected to the transverse threaded tube, the transmission housing is transmission-connected to the second transmission gear, the transverse threaded rod is threadedly connected in the transverse threaded tube, the longitudinal linkage rod and the clamping block are both fixedly connected to the transverse threaded rod, the block is slidably connected in the transverse guide rail, the longitudinal linkage rod passes through the clamping block and the transverse guide rail, a pressure sensor is embedded in the surface of the block, the clamping block contacts the surface of the needle body, and the pressure sensor contacts the lower end of the needle handle;

[0013] The displacement sensor and the pressure sensor are both communicatively connected to the computer control module.

[0014] As a further solution of the present invention, the driving mechanism also includes a driving motor, a driving shaft, a return spring, a limiting rib, a first limiting plate and a first bracket. The driving shaft is connected between the driving motor and the first limiting plate. The limiting rib is arranged on the surface of the driving shaft. The driving gear is slidably connected between the driving shaft and the surface of the limiting rib. The electromagnet is embedded in the surface of the first bracket. The return spring is connected between the driving gear and the first bracket.

[0015] As a further solution of the present invention, the side wall of the transmission housing is provided with first meshing teeth, the upper surface of the transmission housing is provided with second meshing teeth, the second transmission gear is transmission connected to the second meshing teeth, and the driving gear is transmission connected to the first meshing teeth.

[0016] As a further solution of the present invention, when the electromagnet is energized, the electromagnet is magnetically fitted with the magnetic ring, the drive gear is transmission connected to the first meshing tooth, and the first transmission gear is disengaged from the drive gear; when the electromagnet is de-energized, the return spring drives the first transmission gear to fit with the first limit plate, the drive gear is disengaged from the first meshing tooth, and the first transmission gear is transmission connected to the drive gear.

[0017] As a further solution of the present invention, the tensile testing mechanism also includes a transverse plate, a second bracket and a second limit plate, the transverse plate and the second bracket are both fixedly connected to the surface of the longitudinal tube shell, the second limit plate is fixedly connected to the surface of the longitudinal threaded tube, the transverse plate is movably sleeved on the surface of the longitudinal threaded tube, two of the second limit plates are symmetrically distributed on both sides of the transverse plate, the transmission housing is in sliding contact with the second bracket, and the drive motor and the first bracket are both fixedly connected to the transverse plate.

[0018] As a further solution of the present invention, the shell mechanism also includes an opening, a fixed column and a reference groove. The surface of the test tube is provided with an opening, the clamping block passes through the opening, the fixed column is fixedly connected in the sealing shell, the support plate is movably sleeved on the surface of the fixed column, and a reference groove is provided at a position where the inner wall of the sealing shell is aligned with the surface of the block, and the displacement sensor corresponds to the position of the reference groove.

[0019] As a further solution of the present invention, the three stoppers and clamping blocks are symmetrically distributed about the axis of the needle handle or the needle body.

[0020] The beneficial effects of the present invention are as follows: the design of the combination of the shell mechanism, the tension testing mechanism, the driving mechanism and the auxiliary testing mechanism is not only suitable for testing acupuncture needles of different lengths, but also can ensure that the needle body remains in a vertical state, thereby preventing the problem of inaccurate measurement data due to the bending of the needle body itself when the needle body is long, and has the characteristics of intelligent, efficient and accurate testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a stereoscopic diagram of an acupuncture needle tension testing device according to an embodiment of the present invention.

[0022] Figure 2 It is a planar cross-sectional view of the housing mechanism of an embodiment of the present invention.

[0023] Figure 3 It is a planar cross-sectional view of the first tensile testing mechanism according to an embodiment of the present invention.

[0024] Figure 4 It is a planar cross-sectional view of the auxiliary testing mechanism according to an embodiment of the present invention.

[0025] Figure 5 It is a planar cross-sectional view of an acupuncture needle tension testing device according to an embodiment of the present invention.

[0026] Figure 6 For the present invention Figure 5 A partial enlarged view of point a in the middle.

[0027] Figure numerals: 1-housing mechanism, 11-sealing shell, 12-test tube, 121-opening, 13-longitudinal threaded rod, 14-transverse guide rail, 15-fixed column, 16-reference groove, 2-driving mechanism, 21-driving motor, 22-driving shaft, 23-driving gear, 24-electromagnet, 25-magnetic ring, 26-reset spring, 27-limiting rib, 28-first limiting plate, 29-first bracket, 3-first tensile test mechanism, 31-support plate, 32-longitudinal tube shell, 33-transverse Plate, 34-longitudinal threaded tube, 35-first transmission gear, 36-displacement sensor, 37-second bracket, 38-second limit plate, 4-auxiliary testing mechanism, 41-transmission housing, 411-first meshing tooth, 412-second meshing tooth, 42-transverse threaded tube, 43-second transmission gear, 44-transverse threaded rod, 45-longitudinal linkage rod, 46-stopper, 47-pressure sensor, 48-clamping block, 5-acupuncture needle, 51-needle handle, 52-needle body, 6-computer control module. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0029] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0030] See also Figures 1 to 6 In one embodiment of the present invention, an acupuncture needle tension test device includes a computer control module 6, which includes:

[0031] The housing mechanism 1 comprises a sealing shell 11, a test tube 12, a transverse guide rail 14 and a longitudinal threaded rod 13. The test tube 12 and the longitudinal threaded rod 13 are both fixedly connected to the sealing shell 11. A transverse guide rail 14 is provided between the sealing shell 11 and the test tube 12. The computer control module 6 is fixedly connected to the sealing shell 11.

[0032] A tension testing mechanism 3, the tension testing mechanism 3 comprising a support plate 31, a longitudinal tube shell 32, a longitudinal threaded tube 34, a first transmission gear 35 and a displacement sensor 36, the longitudinal tube shell 32 and the displacement sensor 36 are both fixedly connected to the support plate 31, the longitudinal threaded tube 34 is movably connected to the longitudinal tube shell 32, the longitudinal threaded rod 13 is threadedly connected to the longitudinal threaded tube 34, and the first transmission gear 35 is fixedly connected to the longitudinal threaded tube 34;

[0033] A driving mechanism 2 connected to one side of the longitudinal tube shell 32, the driving mechanism 2 comprising a driving gear 23, a magnetic ring 25 and an electromagnet 24, the surface of the driving gear 23 is inlaid with a magnetic ring 25, the electromagnet 24 is magnetically connected to the magnetic ring 25, and the first transmission gear 35 is transmission-connected to one side of the driving gear 23;

[0034] An auxiliary testing mechanism 4 connected to one side of the longitudinal tube shell 32, the auxiliary testing mechanism 4 includes a transmission housing 41, a transverse threaded tube 42, a second transmission gear 43, a transverse threaded rod 44, a longitudinal linkage rod 45, a stopper 46, a pressure sensor 47 and a clamping block 48, the transmission housing 41 and the transverse threaded tube 42 are both connected to the longitudinal tube shell 32, the other side of the driving gear 23 is transmission-connected to the transmission housing 41, the second transmission gear 43 is fixedly connected to the transverse threaded tube 42, the transmission housing 41 is transmission-connected to the second transmission gear 43, the transverse threaded rod 44 is threadedly connected in the transverse threaded tube 42, the longitudinal linkage rod 45 and the clamping block 48 are both fixedly connected to the transverse threaded rod 44, the stopper 46 is slidably connected in the transverse guide rail 14, the longitudinal linkage rod 45 passes through the clamping block 48 and the transverse guide rail 14, the surface of the stopper 46 is embedded with a pressure sensor 47, the clamping block 48 contacts the surface of the needle body 52, and the pressure sensor 47 contacts the lower end of the needle handle 51;

[0035] The displacement sensor 36 and the pressure sensor 47 are both in communication connection with the computer control module 6 .

[0036] Furthermore, the tensile testing mechanism 3 also includes a transverse plate 33, a second bracket 37 and a second limit plate 38. The transverse plate 33 and the second bracket 37 are both fixedly connected to the surface of the longitudinal tube shell 32. The second limit plate 38 is fixedly connected to the surface of the longitudinal threaded tube 34. The transverse plate 33 is movably sleeved on the surface of the longitudinal threaded tube 34. The two second limit plates 38 are symmetrically distributed on both sides of the transverse plate 33. The transmission housing 41 is in sliding contact with the second bracket 37.

[0037] Furthermore, the shell mechanism 1 also includes an opening 121, a fixed column 15 and a reference groove 16. The test tube 12 is provided with an opening 121 on its surface, the clamping block 48 passes through the opening 121, the fixed column 15 is fixedly connected in the sealing shell 11, the support plate 31 is movably sleeved on the surface of the fixed column 15, and a reference groove 16 is provided at a position where the inner wall of the sealing shell 11 is aligned with the surface of the block 46, and the displacement sensor 36 corresponds to the position of the reference groove 16.

[0038] Furthermore, the three stoppers 46 and clamping blocks 48 are symmetrically distributed about the axis of the needle handle 51 or the needle body 52 .

[0039] In the embodiment of the present invention, in the initial state, the distance between the three blocks 46 and the three clamping blocks 48 is between the diameter of the needle body 52 and the diameter of the needle handle 51. In this way, when the needle body 52 of the acupuncture needle 5 is placed downward into the test tube 12, the upper surface of the block 46 and the pressure sensor 47 contacts the end surface of the needle handle 51 to prevent the acupuncture needle 5 from falling directly.

[0040] See also Figures 3 to 6 In one embodiment of the present invention, the driving mechanism 2 also includes a driving motor 21, a driving shaft 22, a return spring 26, a limiting rib 27, a first limiting plate 28 and a first bracket 29, the driving shaft 22 is connected between the driving motor 21 and the first limiting plate 28, the limiting rib 27 is provided on the surface of the driving shaft 22, the driving gear 23 is slidably connected between the driving shaft 22 and the surface of the limiting rib 27, the electromagnet 24 is embedded in the surface of the first bracket 29, the return spring 26 is connected between the driving gear 23 and the first bracket 29, and the driving motor 21 and the first bracket 29 are both fixedly connected to the transverse plate 33.

[0041] Furthermore, the side wall of the transmission housing 41 is provided with a first meshing tooth 411 , the upper surface of the transmission housing 41 is provided with a second meshing tooth 412 , the second transmission gear 43 is transmission-connected to the second meshing tooth 412 , and the driving gear 23 is transmission-connected to the first meshing tooth 411 .

[0042] In an embodiment of the present invention, when the electromagnet 24 is energized, the electromagnet 24 is magnetically fitted with the magnetic ring 25, the drive gear 23 is transmission-connected with the first meshing tooth 411, and the first transmission gear 35 is disengaged from the drive gear 23; when the electromagnet 24 is de-energized, the return spring 26 drives the first transmission gear 35 to fit with the first limit plate 28, the drive gear 23 is disengaged from the first meshing tooth 411, and the first transmission gear 35 is transmission-connected with the drive gear 23.

[0043] Working principle: First, the needle body 52 of the acupuncture needle 5 is placed downward into the test tube 12, and the upper surfaces of the stopper 46 and the pressure sensor 47 are in contact with the end surface of the needle handle 51. Then, the electromagnet 24 is energized. At this time, the electromagnet 24 and the magnetic ring 25 are magnetically attached, and the driving gear 23 is connected to the first meshing tooth 411. The first transmission gear 35 is disengaged from the driving gear 23. The driving mechanism 2 controls the transmission housing 41 to rotate through the first meshing tooth 411. The rotating transmission housing 41 is connected to the second meshing tooth 412 through the second meshing tooth 413. The second transmission gear 43 drives the transverse threaded tube 42 to rotate, and the rotating transverse threaded tube 42 drives the clamping block 48 and the longitudinal linkage rod 45 to move through the transverse threaded rod 44. The movable longitudinal linkage rod 45 is used to drive the stopper 46 to move along the transverse guide rail 14. The clamping block 48 and the stopper 46 can clamp and fix the needle body 52 from the upper and lower positions, thereby ensuring that the needle body 52 remains in a vertical state, and preventing the problem of inaccurate measurement data due to the bending of the needle body 52 itself when the needle body 52 is long;

[0044] Then the driving mechanism 2 controls the clamping block 48 and the stopper 46 to release the needle body 52, and controls the electromagnet 24 to be powered off, the electromagnet 24 is magnetically attached to the magnetic ring 25, the return spring 26 drives the first transmission gear 35 to attach to the first limiting plate 28, the driving gear 23 is disengaged from the first meshing tooth 411, the first transmission gear 35 is connected to the driving gear 23, the driving motor 21 controls the driving gear 23 to rotate through the driving shaft 22 and the limiting rib 27, the rotating driving gear 23 drives the longitudinal threaded tube 34 to rotate through the first transmission gear 35, the rotating longitudinal threaded tube 34 is threadedly connected with the longitudinal threaded rod 13 to achieve the purpose of driving the first tensile test mechanism 3, the driving mechanism 2 and the auxiliary test mechanism 4 to move along the axial direction of the needle body 52 as a whole, so that the support plate 31 contacts the needle tip at the end of the needle body 52, and then the initial length L1 of the needle body 52 can be measured according to the displacement sensor 36, and the computer control module 6 stores the initial length L1 of the needle body 52;

[0045] Continue to control the electromagnet 24 to be energized, use the drive mechanism 2 to control the clamp 48 and the stopper 46 to clamp the needle body 52, control the electromagnet 24 to be deenergized again, use the drive mechanism 2 and the longitudinal threaded tube 34 to control the first tensile test mechanism 3, the drive mechanism 2 and the auxiliary test mechanism 4 to move downward along the axial direction of the needle body 52 as a whole, thereby controlling the clamp 48 and the stopper 46 to pull down the needle body 52, and the pressure sensor 47 on the upper surface of the stopper 46 is used to monitor the pressure from the needle handle 51. The tension threshold is pre-set to 9N in the computer control module 6. When the pressure sensor 47 detects that the pressure from the needle handle 51 is 9N, the drive motor 21 is controlled to stop, and the final length L2 of the needle body 52 measured by the displacement sensor 36 is recorded. The tensile performance or connection firmness of the needle body 52 is judged by the size of the length difference △L=L2-L1, thereby realizing the characteristics of intelligent, efficient and accurate testing of the tensile test capability of the acupuncture needle 5.

[0046] To sum up, the design of the combination of the shell mechanism 1, the tension testing mechanism 3, the driving mechanism 2 and the auxiliary testing mechanism 4 is not only suitable for the testing of acupuncture needles 5 of different lengths, but also can ensure that the needle body 52 remains in a vertical state, thereby preventing the problem of inaccurate measurement data due to the bending of the needle body 52 itself when the needle body 52 is long, and has the characteristics of intelligent, efficient and precise testing.

[0047] For those skilled in the art, although several embodiments and examples of the present invention are described, these embodiments and examples are presented as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in various other ways, and various omissions, substitutions, and changes can be made without departing from the scope of the subject matter of the invention. These embodiments and their variations are included in the scope and subject matter of the invention, and are included in the invention described in the claims and the scope of their equivalents.

[0048] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An acupuncture needle tension test device, comprising a computer control module (6), characterized in that: include: A housing structure (1), the housing structure (1) comprising a sealing shell (11), a test tube (12), a transverse guide rail (14) and a longitudinal threaded rod (13), the test tube (12) and the longitudinal threaded rod (13) are both fixedly connected to the sealing shell (11), a transverse guide rail (14) is provided between the sealing shell (11) and the test tube (12), and the computer control module (6) is fixedly connected to the sealing shell (11); A tension testing mechanism (3), the tension testing mechanism (3) comprising a support plate (31), a longitudinal tube shell (32), a longitudinal threaded tube (34), a first transmission gear (35) and a displacement sensor (36), the longitudinal tube shell (32) and the displacement sensor (36) are both fixedly connected to the support plate (31), the longitudinal threaded tube (34) is movably connected to the longitudinal tube shell (32), the longitudinal threaded rod (13) is threadedly connected to the longitudinal threaded tube (34), and the first transmission gear (35) is fixedly connected to the longitudinal threaded tube (34); A driving mechanism (2) connected to one side of the longitudinal tube shell (32), the driving mechanism (2) comprising a driving gear (23), a magnetic ring (25) and an electromagnet (24), the surface of the driving gear (23) being inlaid with a magnetic ring (25), the electromagnet (24) being magnetically connected to the magnetic ring (25), and the first transmission gear (35) being transmission-connected to one side of the driving gear (23); An auxiliary testing mechanism (4) connected to one side of the longitudinal tube shell (32), the auxiliary testing mechanism (4) comprising a transmission housing (41), a transverse threaded tube (42), a second transmission gear (43), a transverse threaded rod (44), a longitudinal linkage rod (45), a stopper (46), a pressure sensor (47) and a clamping block (48), the transmission housing (41) and the transverse threaded tube (42) are both connected to the longitudinal tube shell (32), the other side of the driving gear (23) is transmission-connected to the transmission housing (41), the second transmission gear (43) is fixedly connected to the transverse threaded tube (42), and the transmission The movable housing (41) is drivingly connected to the second transmission gear (43), the transverse threaded rod (44) is threadedly connected in the transverse threaded tube (42), the longitudinal linkage rod (45) and the clamping block (48) are both fixedly connected to the transverse threaded rod (44), the block (46) is slidably connected in the transverse guide rail (14), the longitudinal linkage rod (45) passes through the clamping block (48) and the transverse guide rail (14), a pressure sensor (47) is embedded in the surface of the block (46), the clamping block (48) contacts the surface of the needle body (52), and the pressure sensor (47) contacts the lower end of the needle handle (51); The displacement sensor (36) and the pressure sensor (47) are both in communication connection with the computer control module (6); The driving mechanism (2) further comprises a driving motor (21), a driving shaft (22), a return spring (26), a limit rib (27), a first limit plate (28) and a first bracket (29); the driving shaft (22) is connected between the driving motor (21) and the first limit plate (28); the limit rib (27) is arranged on the surface of the driving shaft (22); the driving gear (23) is slidably connected between the driving shaft (22) and the surface of the limit rib (27); the electromagnet (24) is embedded on the surface of the first bracket (29); and the return spring (26) is connected between the driving gear (23) and the first bracket (29); The side wall of the transmission housing (41) is provided with a first meshing tooth (411), the upper surface of the transmission housing (41) is provided with a second meshing tooth (412), the second transmission gear (43) is transmission-connected with the second meshing tooth (412), and the driving gear (23) is transmission-connected with the first meshing tooth (411); When the electromagnet (24) is powered on, the electromagnet (24) and the magnetic ring (25) are magnetically attached, the driving gear (23) is transmission-connected with the first meshing tooth (411), and the first transmission gear (35) is disengaged from the driving gear (23); when the electromagnet (24) is powered off, the return spring (26) drives the driving gear (23) to be attached to the first limiting plate (28), the driving gear (23) is disengaged from the first meshing tooth (411), and the first transmission gear (35) is transmission-connected with the driving gear (23).

2. The acupuncture needle tension testing device according to claim 1, characterized in that: The tensile testing mechanism (3) further comprises a transverse plate (33), a second bracket (37) and a second limiting plate (38); the transverse plate (33) and the second bracket (37) are both fixedly connected to the surface of the longitudinal tube shell (32); the second limiting plate (38) is fixedly connected to the surface of the longitudinal threaded tube (34); the transverse plate (33) is movably sleeved on the surface of the longitudinal threaded tube (34); two second limiting plates (38) are symmetrically distributed on both sides of the transverse plate (33); the transmission housing (41) is in sliding contact with the second bracket (37); and the drive motor (21) and the first bracket (29) are both fixedly connected to the transverse plate (33).

3. The acupuncture needle tension testing device according to claim 1, characterized in that: The housing mechanism (1) further comprises an opening (121), a fixing column (15) and a reference groove (16); the surface of the test tube (12) is provided with an opening (121); the clamping block (48) passes through the opening (121); the fixing column (15) is fixedly connected in the sealing shell (11); the support plate (31) is movably sleeved on the surface of the fixing column (15); a reference groove (16) is provided at a position where the inner wall of the sealing shell (11) is aligned with the surface of the stopper (46); and the displacement sensor (36) corresponds to the position of the reference groove (16).

4. The acupuncture needle tension testing device according to claim 1, characterized in that: The three stoppers (46) and clamping blocks (48) are all axially symmetrically distributed about the axis of the needle handle (51) or the needle body (52).

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