A test bionic spine device and method of use thereof

Abstract

The application provides a kind of test bionic spine device and its using method, it is related to testing field.The test bionic spine device includes spine structure and adjusting structure, wherein, spine structure includes multiple vertebra arranged in turn from top to bottom, two adjacent vertebra are connected by connecting piece, and can rotate left and right and rotate forward and backward with each other;Adjusting structure includes first connecting rod and second connecting rod located in the front side of spine structure, first connecting rod is telescopic rod, and the top end of first connecting rod is fixedly connected to the joint area of cervical vertebra segment and thoracic vertebra segment, the top end of second connecting rod is hinged to the bottom end of first connecting rod through hinge shaft, the bottom end is hinged to the bottom area of lumbar vertebra segment through hinge shaft, and hinge shaft extends along left and right direction.The adjusting convenience of the bionic spine device is higher, and can be conveniently applied to different testing requirements.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of testing, in particular to a bionic spine device for testing and a method of using the same. BACKGROUND

[0002] As an important part of modern transportation, the comfort of the seat of an automobile is crucial to the experience and health of the driver and passenger. In the related art, a dummy model is generally used to test and evaluate the comfort of the seat. For seats of different angles, a test dummy with a physiological curvature of the spine needs to be adapted. However, the convenience of adjusting the physiological curvature of the existing simulation spine cannot meet the needs. SUMMARY

[0003] The present application aims to provide a bionic spine device for testing and a method of using the same to solve the technical problem of inconvenient adjustment of the physiological curvature of the existing simulation spine.

[0004] To solve the above problems, the present application provides a bionic spine device for testing, comprising:

[0005] a spine structure comprising a plurality of vertebrae arranged in order from top to bottom, each adjacent two vertebrae being connected by a connecting piece and being capable of rotating left and right and forward and backward relative to each other; among the plurality of vertebrae, a plurality of vertebrae in the upper region form a cervical spine segment, a plurality of vertebrae in the middle region form a thoracic spine segment, and a plurality of vertebrae in the lower region form a lumbar spine segment; and

[0006] an adjusting structure comprising a first connecting rod and a second connecting rod located on the front side of the spine structure, the first connecting rod being a telescopic rod, and the top end of the first connecting rod being fixedly connected to the junction area of the cervical spine segment and the thoracic spine segment, the top end of the second connecting rod being hingedly connected to the bottom end of the first connecting rod by a hinge shaft, and the bottom end being hingedly connected to the bottom region of the lumbar spine segment by a hinge shaft, the hinge shaft extending in the left-right direction.

[0007] Optionally, the connecting piece comprises a connecting seat and first and second connecting shafts provided on the connecting seat, one of the first and second connecting shafts extending in the left-right direction and the other extending in the front-back direction.

[0008] The two adjacent vertebrae and the connecting piece therebetween form a vertebral unit, in which the vertebra above is an upper vertebra, the bottom of the upper vertebra is provided with a first connecting lug, and the first connecting lug is rotatably connected to the connecting seat by the first connecting shaft; the vertebra below is a lower vertebra, the top of the lower vertebra is provided with a second connecting lug, and the second connecting lug is rotatably connected to the connecting seat by the second connecting shaft.

[0009] Optionally, the connecting seat comprises a connecting ring, the first connecting shaft comprises two first shaft segments arranged on the outer wall of the connecting ring, and the second connecting shaft comprises two second shaft segments arranged on the outer wall of the connecting ring, the first shaft segments and the second shaft segments being uniformly spaced and alternately arranged along the circumference of the connecting ring.

[0010] In the vertebral unit, the first connecting ears are two, and the two first connecting ears are connected to the two first shaft segments one by one; the second connecting ears are two, and the two second connecting ears are connected to the two second shaft segments one by one.

[0011] Optionally, the connecting member further comprises a sleeve ring, the sleeve ring is arranged outside the first connecting ear and the second connecting ear, and is connected to the outer end of the first shaft segment and the second shaft segment.

[0012] Optionally, in the vertebral unit, the first connecting shaft extends in the left-right direction and is fixed to the connecting seat, a locking structure is arranged between the upper vertebra and the first connecting shaft, the locking structure has a locking position and an unlocking position, and when the locking structure is in the locking position, the relative position of the upper vertebra and the first connecting shaft is locked; when the locking structure is in the unlocking position, the upper vertebra can rotate relative to the first connecting shaft.

[0013] Optionally, in the vertebral unit, when the upper vertebra and the lower vertebra are parallel, the midpoint connecting line of the vertebral body of the upper vertebra and the vertebral body of the lower vertebra passes through the intersection of the first connecting shaft and the second connecting shaft.

[0014] Optionally, the adjusting structure further comprises a top mounting seat, the top mounting seat comprises a first mounting plate and a second mounting plate in a right angle shape, the first mounting plate is connected to the joint area of the cervical vertebra segment and the thoracic vertebra segment, and is parallel to the top surface of the thoracic vertebra segment; the second mounting plate is located at the front end of the first mounting plate and extends downward, and the top end of the first connecting rod is fixed to the second mounting plate.

[0015] Optionally, the length of the second connecting rod is less than the extension length of the lumbar vertebra segment.

[0016] Optionally, the first connecting rod comprises a sleeve rod and a plug rod, the inside of the sleeve rod is hollow to form a plug hole, and the hole wall of the plug hole is provided with a strip-shaped limiting groove extending in the axial direction; one end of the plug rod is provided with a radially protruding limiting convex, the plug rod is slidingly plugged into the plug hole, and the limiting convex is slidingly connected to the strip-shaped limiting groove.

[0017] Among the sleeve rod and the plug rod, the top end of the one located above is connected to the joint area of the cervical vertebra segment and the thoracic vertebra segment, and the bottom end of the one located below is hingedly connected to the top end of the second connecting rod.

[0018] The bionic spine device provided by the application can be used for seat comfort test dummy design, the top end of the bionic spine device is connected with a head, the top of the thoracic vertebra segment of the bionic spine device is connected with a shoulder, the outer end of the shoulder is provided with an arm, the bottom end of the bionic spine device is connected with a hip, the hip is provided with a leg, and the head, the bionic spine device, the shoulder, the arm, the hip and the leg are all covered with simulated skin.

[0019] The application further provides a use method of the simulation spine device for testing, which is applied to the bionic spine device, and the use method comprises the following steps of:

[0020] The bionic spine device is placed on a seat to be tested, the vertebrae of the bionic spine device are pushed and pulled forward and backward and / or are moved left and right, so that the bionic spine device is attached to the backrest of the seat to be tested in a preset sitting posture;

[0021] The top end of the second connecting rod of the bionic spine device is adjusted to rotate forward by a preset angle, so as to increase the physiological curvature of the spine structure of the bionic spine device.

[0022] The top end of the second connecting rod of the bionic spine device is adjusted to rotate backward by a preset angle, so as to reduce the physiological curvature of the spine structure of the bionic spine device.

[0023] In the simulation spine device for testing provided by the application, the adjusting structure is arranged on the front side of the spine structure, and the connecting position of the adjusting structure and the spine structure is limited, so that the physiological curvature of the spine structure can be adjusted by rotating the second connecting rod, thereby improving the adjusting convenience of the bionic spine device, and enabling the bionic spine device to be conveniently applicable to different test requirements, and specifically applicable to comfort tests of seats with different angles and different sitting postures. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the specific embodiments or the related art, the drawings needed to be used in the specific embodiments or the related art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0025] Figure 1 The bionic spine device provided by the embodiment of the application is a partial structure schematic view from a first perspective;

[0026] Figure 2 The bionic spine device provided by the embodiment of the application is a partial structure schematic view from a first perspective; Figure 1 The partial enlarged schematic view of A in the bionic spine device provided by the embodiment of the application;

[0027] Figure 3The local structure schematic view of the bionic spine device provided by the embodiment of the present application is shown from a second perspective;

[0028] Figure 4 For Figure 2 The local enlarged schematic view of B;

[0029] Figure 5 The local structure schematic view of the bionic spine device provided by the embodiment of the present application is shown from a third perspective;

[0030] Figure 6 The connection schematic view of the vertebra and the connecting piece in the bionic spine device provided by the embodiment of the present application.

[0031] Legend:

[0032] 10-bionic spine device; 20-head; 30-shoulder; 40-arm; 50-hip; 60-leg; 100-spine structure; 100A-vertebral unit; 110A-upper vertebra; 120A-lower vertebra; 100B-cervical spine segment; 100C-thoracic spine segment; 100D-lumbar spine segment; 110-vertebra; 111-first connecting lug; 112-second connecting lug; 113-vertebral body; 114-protruding body; 115-first avoiding slot; 116-second avoiding slot; 120-connecting piece; 121-connecting seat; 122-first connecting shaft; 122a-first shaft segment; 123-second connecting shaft; 123a-second shaft segment; 124-sleeve ring; 130-locking structure; 131-first locking part; 132-second locking part; 200-adjusting structure; 210-first connecting rod; 211-sleeve rod; 211a-insertion hole; 211b-strip-shaped limiting slot; 212-insertion rod; 212a-limiting protrusion; 220-second connecting rod; 230-top mounting seat; 231-first mounting plate; 232-second mounting plate; 240-bottom mounting seat. DETAILED DESCRIPTION

[0033] The technical solutions of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0034] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, 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 the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0036] This embodiment provides a bionic spine device 10, such as Figures 1-6 As shown, the system includes a spinal structure 100 and an adjustment structure 200. The spinal structure 100 includes a plurality of vertebrae 110 arranged sequentially from top to bottom. Each pair of adjacent vertebrae 110 is connected by a connector 120 and can rotate left and right and forward and backward relative to each other. Among the plurality of vertebrae 110, the vertebrae 110 located in the upper region form the cervical segment 100B, the vertebrae 110 located in the middle region form the thoracic segment 100C, and the vertebrae 110 located in the lower region form the cervical segment 100B. 110 forms lumbar segment 100D; the adjustment structure 200 includes a first link 210 and a second link 220 located on the front side of the spinal structure 100. The first link 210 is a telescopic rod, and the top end of the first link 210 is fixed to the junction area of ​​cervical segment 100B and thoracic segment 100C. The top end of the second link 220 is hinged to the bottom end of the first link 210 through a hinge shaft, and the bottom end is hinged to the bottom area of ​​lumbar segment 100D through a hinge shaft. The hinge shaft extends in the left and right direction.

[0037] The bionic spine device 10 provided by the embodiment is arranged in a top-down manner between the plurality of vertebrae 110 of the spine structure 100 through the connecting piece 120, the vertebral body 113 of each vertebra 110 extends in a strip shape in a top-down corresponding manner, and the vertebral body 113 is located on the front side of the processus 114 (imitating the transverse process and the spinous process); any vertebra 110 can rotate left and right and rotate forward and backward relative to the adjacent vertebra 110, so as to imitate the left and right swinging and the forward and backward tilting movement of the human spine; the adjusting structure 200 is arranged on the front side of the spine structure 100, the bottom end of the second connecting rod 220 in the adjusting structure 200 is hinged to the bottom of the lumbar vertebra segment 100D through a hinge shaft extending left and right, can rotate in the forward and backward direction around the hinge shaft, the bottom end of the first connecting rod 210 is hinged to the top end of the second connecting rod 220 through a hinge shaft extending left and right, and the top end of the first connecting rod 210 is fixedly connected to the joint area of the cervical vertebra segment 100B and the thoracic vertebra segment 100C, specifically, can be fixedly connected to the bottom end of the cervical vertebra segment 100B, the top end of the thoracic vertebra segment 100C, or the connecting piece 120 between the cervical vertebra segment 100B and the thoracic vertebra segment 100C; the first connecting rod 210 and the second connecting rod 220 are arranged in a forward convex angle shape on the front side of the spine structure 100.

[0038] In use, the bionic spine device 10 can be adjusted according to the required physiological curvature of the spine, and when the bionic spine device 10 is applied to the comfort test of a seat, the sitting posture of abutting against the backrest of the seat and the sitting posture of partially or completely leaving the backrest of the seat can be included. Specifically, the embodiment also provides a use method applied to the comfort test of a seat of the bionic spine device, and the use method comprises the following steps:

[0039] (1) When the spine structure 100 needs to abut against the backrest of the seat, the bionic spine device is placed on the seat to be tested, and the vertebrae 110 of the bionic spine device 10 are pushed and pulled forward and backward and / or pushed and pulled left and right, so that the vertebrae 110 abut against the backrest of the seat to be tested in a preset sitting posture. By directly adjusting the vertebrae 110 to abut against the backrest of the seat, the abutting property of the spine structure 100 and the backrest can be effectively ensured, and the accuracy of the subsequent test can be ensured; wherein, during the adjusting process, the adjusting structure 200 is in a follow-up state.

[0040] (2) When the spine structure 100 needs to abut against the backrest of the seat or at least partially leave the backrest of the seat, the top end of the second connecting rod 220 of the bionic spine device 10 is adjusted to rotate forward by a preset angle, so as to increase the physiological curvature of the spine structure 100 of the bionic spine device 10; or, the top end of the second connecting rod 220 of the bionic spine device 10 is adjusted to rotate backward by a preset angle, so as to reduce the physiological curvature of the spine structure 100 of the bionic spine device 10.

[0041] Specifically, when the top end of the second connecting rod 220 is adjusted to rotate forward, the bottom end of the first connecting rod 210 moves forward and downward synchronously with the top end of the second connecting rod 220, and correspondingly, the length of the first connecting rod 210 is adapted to be elongated, and the inclination of the first connecting rod 210 relative to the horizontal plane gradually decreases. Since the top end of the first connecting rod 210 is fixedly connected to the joint area of the thoracic vertebra segment 100C and the cervical vertebra segment 100B, as the angle of the first connecting rod 210 changes, the first connecting rod 210 will pull the physiological curvature of the joint area to increase, and the physiological curvature of the entire spine structure 100 will increase as a whole. Similarly, when the top end of the second connecting rod 220 is adjusted to rotate backward, the bottom end of the first connecting rod 210 moves backward and upward synchronously with the top end of the second connecting rod 220, and correspondingly, the length of the first connecting rod 210 is adapted to be shortened, and the inclination of the first connecting rod 210 relative to the horizontal plane gradually increases. As the angle of the first connecting rod 210 changes, the first connecting rod 210 will push the physiological curvature of the joint area to decrease, and the physiological curvature of the entire spine structure 100 will decrease as a whole.

[0042] Therefore, in the simulated spine provided by the embodiment, by arranging the adjusting structure 200 on the front side of the spine structure 100 and limiting the connection position of the adjusting structure 200 and the spine structure 100, the physiological curvature of the spine structure 100 can be adjusted by rotating the second connecting rod 220, thereby improving the adjusting convenience of the bionic spine device 10, and enabling the bionic spine device 10 to be conveniently applicable to different test requirements, specifically, to the comfort test of seats with different angles and different sitting postures.

[0043] Specifically, the top end of the bionic spine device 10 can be connected with a head 20, the top of the thoracic vertebra segment 100C in the bionic spine device 10 is connected with a shoulder 30, the outer end of the shoulder 30 is provided with an arm 40, the bottom end of the bionic spine device 10 is connected with a hip 50, the hip 50 is provided with a leg 60, and the head 20, the bionic spine device 10, the shoulder 30, the arm 40, the hip 50 and the leg 60 are all covered with simulated skin.

[0044] In the embodiment, as shown in Figure 1 , Figure 3 and Figure 5 , the length of the second connecting rod 220 is less than the extension length of the lumbar vertebra segment 100D. This makes the push-pull adjustment of the physiological curvature of the spine structure 100 by the rotation cooperation of the first connecting rod 210 and the second connecting rod 220 more similar to the human spine, and correspondingly improves the test accuracy.

[0045] The adjacent vertebrae 110 are rotationally connected by the connecting piece 120, and a certain rotation resistance exists between the vertebrae 110 and the connecting piece 120 when the relative rotation occurs; when the adjusting structure 200 does not apply the pushing and pulling force to the spine structure 100, the current posture can be maintained between the vertebrae 110 and the connecting piece 120; when the pushing and pulling force applied by the adjusting structure 200 to the spine structure 100 can overcome the resistance, the spine structure 100 can be pushed and pulled to perform the forward and backward pitching movement, so as to adjust the physiological curvature of the spine structure 100.

[0046] Alternatively, the locking structure 130 is arranged between the vertebrae 110 and the connecting piece 120, and the locking structure 130 has a locking position and an unlocking position; when the physiological curvature of the spine structure 100 needs to be adjusted, the locking structure 130 can be adjusted to the unlocking position first, so that the relative rotation between the vertebrae 110 and the connecting piece 120 can be realized under the adjusting action of the adjusting structure 200, so as to adjust the physiological curvature of the spine structure 100; after the adjustment is completed, the locking structure 130 can be adjusted to the locking position, so that the relative position between the vertebrae 110 and the connecting piece 120 is locked and cannot be rotated, so as to lock the current posture of the spine structure 100 and ensure the stability of the physiological curvature.

[0047] In the embodiment, as shown in Figure 2 、 Figure 4 and Figure 6 , the connecting piece 120 includes a connecting seat 121 and a first connecting shaft 122 and a second connecting shaft 123 arranged on the connecting seat 121, one of the first connecting shaft 122 and the second connecting shaft 123 extends in the left-right direction, and the other extends in the front-rear direction; the adjacent two vertebrae 110 and the connecting piece 120 therebetween form a vertebral unit 100A, in the vertebral unit 100A, the vertebra 110 located at the upper side is an upper vertebra 110A, the bottom of the upper vertebra 110A is provided with a first connecting lug 111, and the first connecting lug 111 is rotationally connected to the connecting seat 121 through the first connecting shaft 122; the vertebra 110 located at the lower side is a lower vertebra 120A, and the top of the lower vertebra 120A is provided with a second connecting lug 112, and the second connecting lug 112 is rotationally connected to the connecting seat 121 through the second connecting shaft 123.

[0048] Among the plurality of vertebrae 110, one at the top is a top vertebra, one at the bottom is a bottom vertebra, and the remaining vertebrae 110 between the top vertebra and the bottom vertebra are middle vertebrae, wherein the bottom of the top vertebra is provided with a first connecting lug 111, the top of the bottom vertebra is provided with a second connecting lug 112, and the top of the middle vertebra is provided with a second connecting lug 112 and the bottom is provided with a first connecting lug 111. In the connecting piece 120, the first connecting shaft 122 and the second connecting shaft 123 are both connected to the connecting seat 121, and the two are arranged in a vertical intersection, preferably, the axis of the first connecting shaft 122 and the axis of the second connecting shaft 123 are perpendicular to each other; taking the first connecting shaft 122 extending in the left-right direction and the second connecting shaft 123 extending in the front direction as an example: in the vertebra unit 100A, the upper vertebra 110A can rotate front and back around the axis of the first connecting shaft 122, and the lower vertebra 120A can rotate left and right around the axis of the second connecting shaft 123, so that the relative front and back rotation and the relative left and right rotation of the upper vertebra 110A and the lower vertebra 120A are realized through a simple structure.

[0049] Among the connecting seat 121 and the first connecting lug 111, the first connecting shaft 122 is at least in rotational connection with one of them; among the connecting seat 121 and the second connecting lug 112, the second connecting shaft 123 is at least in rotational connection with one of them.

[0050] When the connecting piece 120 adopts the specific form described above, as shown in Figure 2 and Figure 4 , in the vertebra unit 100A, the first connecting shaft 122 can extend in the left-right direction and be fixed to the connecting seat 121, and the upper vertebra 110A and the first connecting shaft 122 are provided with a locking structure 130, the locking structure 130 has a locking position and an unlocking position, and when the locking structure 130 is in the locking position, the relative position of the upper vertebra 110A and the first connecting shaft 122 is locked; when the locking structure 130 is in the unlocking position, the upper vertebra 110A can rotate relative to the first connecting shaft 122. Specifically, the locking structure 130 can include a first locking part 131 provided on the upper vertebra 110A or the first connecting lug 111, and a second locking part 132 provided on the connecting seat 121 or the first connecting shaft 122, the first locking part 131 and the second locking part 132 have a locking position of connection and cooperation limiting and an unlocking position of allowing relative movement away from each other.

[0051] In the embodiment, as shown in Figure 4As shown, the bottom of the upper vertebra 110A is provided with a first avoiding slot 115 corresponding to the position of the second connecting lug 112, and the top of the lower vertebra 120A is provided with a second avoiding slot 116 corresponding to the position of the first connecting lug 111, which reduces the interference between the second connecting lug 112 and the upper vertebra 110A during rotation and the interference between the first connecting lug 111 and the lower vertebra 120A during rotation while ensuring the compactness of the upper vertebra 110A and the lower vertebra 120A.

[0052] In this embodiment, the connecting seat 121 comprises a connecting ring, the first connecting shaft 122 comprises two first shaft segments 122a provided on the outer wall of the connecting ring, and the second connecting shaft 123 comprises two second shaft segments 123a provided on the outer wall of the connecting ring, the first shaft segments 122a and the second shaft segments 123a are uniformly spaced and alternately arranged along the circumference of the connecting ring; in the vertebral unit 100A, the first connecting lug 111 is two, and the two first connecting lugs 111 are connected to the two first shaft segments 122a one by one; the second connecting lug 112 is two, and the two second connecting lugs 112 are connected to the two second shaft segments 123a one by one; specifically, the two first shaft segments 122a are connected to the two first connecting lugs 111 one by one, and the two second shaft segments 123a are connected to the two second connecting lugs 112 one by one. The two first shaft segments 122a and the two second shaft segments 123a are four shaft segments provided on the outer wall of the connecting ring and extend radially, and each shaft segment can be fixedly connected or rotatably connected with the connecting ring; wherein, the two first shaft segments 122a are coaxially arranged, the two second shaft segments 123a are coaxially arranged, and the axes of the two first shaft segments 122a and the axes of the two second shaft segments 123a are perpendicular and intersected.

[0053] The two first connecting lugs 111 of the upper vertebra 110A are located on the left and right sides or the front direction of the upper vertebra 110A, and the two first connecting lugs 111 are rotatably connected with the two first shaft segments 122a respectively, thereby improving the stability of the rotatable connection between the upper vertebra 110A and the connecting seat 121; the two second connecting lugs 112 of the lower vertebra 120A are located on the front and rear directions or the left and right directions of the lower vertebra 120A, and the two second connecting lugs 112 are rotatably connected with the two second shaft segments 123a respectively, thereby improving the stability of the rotatable connection between the lower vertebra 120A and the connecting seat 121.

[0054] In this embodiment, when the upper vertebra 110A and the lower vertebra 120A in the vertebral unit 100A are parallel, the midpoint connecting line of the vertebral body 113 of the upper vertebra 110A and the vertebral body 113 of the lower vertebra 120A passes through the intersection of the first connecting shaft 122 and the second connecting shaft 123. When the radial sections of the plurality of vertebrae 110 are parallel, the axes of the vertebral bodies 113 in the plurality of vertebrae 110 and the axis of the connecting ring are approximately collinear, thereby improving the simulation of the spinal structure 100 with the human spine and improving the stability of the rotational adjustment of the vertebrae 110.

[0055] In the embodiment, as shown in Figure 2 , Figure 4 and Figure 6 , the connecting piece 120 further comprises a collar 124, which is arranged outside the first connecting lug 111 and the second connecting lug 112 and is connected to the outer ends of the first shaft segment 122a and the second shaft segment 123a. The arrangement of the collar 124 not only improves the connection stability of the first connecting lug 111 and the first shaft segment 122a and the second connecting lug 112 and the second shaft segment 123a, but also simulates the intervertebral disc, thereby further improving the simulation degree of the spine structure 100.

[0056] In the embodiment, as shown in Figure 1 , Figure 3 and Figure 5 , the adjusting structure 200 further comprises a top mounting base 230, which comprises a first mounting plate 231 and a second mounting plate 232 arranged in a right angle, the first mounting plate 231 is connected to the joint area of the cervical vertebra segment 100B and the thoracic vertebra segment 100C and is parallel to the top surface of the thoracic vertebra segment 100C, and the second mounting plate 232 is arranged at the front end of the first mounting plate 231 and extends downward, and the top end of the first connecting rod 210 is fixedly connected to the second mounting plate 232. The arrangement of the top mounting base 230 improves the connection stability and convenience of the top end of the first connecting rod 210 and the spine structure 100, and specifically, the two shoulder parts 30 of the dummy are respectively connected to the left and right sides of the first mounting plate 231.

[0057] In the embodiment, the adjusting structure 200 can further comprise a bottom mounting base 240, which is connected to the bottom of the lumbar vertebra segment 100D, and the bottom end of the second connecting rod 220 is hingedly connected to the bottom mounting base 240.

[0058] In the embodiment, as shown in Figure 1 , Figure 3 and Figure 5As shown, the first connecting rod 210 comprises a sleeve rod 211 and a plug rod 212, the sleeve rod 211 is internally hollow to form a plug hole 211a, and the hole wall of the plug hole 211a is provided with a strip-shaped limiting slot 211b extending along the axial direction thereof; one end of the plug rod 212 is provided with a radially protruding limiting convex 212a, the plug rod 212 is slidingly plugged into the plug hole 211a, and the limiting convex 212a is slidingly connected to the strip-shaped limiting slot 211b; wherein, among the sleeve rod 211 and the plug rod 212, the top end of the one located at the upper side is connected to the joint area of the cervical vertebra segment 100B and the thoracic vertebra segment 100C, and the bottom end of the one located at the lower side is hingedly connected to the top end of the second connecting rod 220. The first connecting rod 210 realizes its scalability in the form of sliding plug connection of the sleeve rod 211 and the plug rod 212, wherein, the plug rod 212 is slidingly plugged into the plug hole 211a, at the same time, the limiting convex 212a is slidingly connected to the strip-shaped limiting slot 211b, when the plug rod 212 slides relative to the sleeve rod 211, the limiting convex 212a synchronously slides relative to the strip-shaped limiting slot 211b, and when the limiting convex 212a slides to both ends of the strip-shaped limiting slot 211b in the length direction, the end part of the strip-shaped limiting slot 211b limits the sliding of the limiting convex 212a, so as to limit the maximum stroke of the plug rod 212 relative to the sleeve rod 211, to prevent the plug rod 212 from being separated from the sleeve rod 211.

[0059] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A bionic spinal device for testing, characterized in that, include: A spinal structure (100) includes a plurality of vertebrae (110) arranged sequentially from top to bottom. Each pair of adjacent vertebrae (110) is connected by a connector (120) and is capable of rotating left and right and forward and backward relative to each other. Of the plurality of vertebrae (110), the vertebrae located in the upper region form a cervical segment (100B), the vertebrae located in the middle region form a thoracic segment (100C), and the vertebrae located in the lower region form a lumbar segment (100D). The adjustment structure (200) includes a first link (210) and a second link (220) located on the front side of the spinal structure (100). The first link (210) is a telescopic rod, and the top end of the first link (210) is fixed to the junction area of ​​the cervical segment (100B) and the thoracic segment (100C). The top end of the second link (220) is hinged to the bottom end of the first link (210) through a hinge shaft, and the bottom end is hinged to the bottom area of ​​the lumbar segment (100D) through a hinge shaft. The hinge shaft extends in the left-right direction.

2. The bionic spinal device for testing according to claim 1, characterized in that, The connector (120) includes a connector (121) and a first connecting shaft (122) and a second connecting shaft (123) disposed on the connector (121). Of the first connecting shaft (122) and the second connecting shaft (123), one extends in the left-right direction and the other extends in the front-back direction. Two adjacent vertebrae (110) and the connecting member (120) between them form a vertebral unit (100A). In the vertebral unit (100A), the upper vertebra (110) is the upper vertebra (110A). The bottom of the upper vertebra (110A) is provided with a first connecting ear (111), which is rotatably connected to the connecting seat (121) through the first connecting shaft (122). The lower vertebra (110) is the lower vertebra (120A). The top of the lower vertebra (120A) is provided with a second connecting ear (112), which is rotatably connected to the connecting seat (121) through the second connecting shaft (123).

3. The bionic spinal device for testing according to claim 2, characterized in that, The connecting seat (121) includes a connecting ring, the first connecting shaft (122) includes two first shaft segments (122a) disposed on the outer wall of the connecting ring, and the second connecting shaft (123) includes two second shaft segments (123a) disposed on the outer wall of the connecting ring. The first shaft segments (122a) and the second shaft segments (123a) are evenly spaced and alternately arranged along the circumference of the connecting ring. In the vertebral unit (100A), there are two first connecting ears (111), and the two first connecting ears (111) are connected to the two first shaft segments (122a) in a one-to-one correspondence; there are two second connecting ears (112), and the two second connecting ears (112) are connected to the two second shaft segments (123a) in a one-to-one correspondence.

4. The bionic spinal device for testing according to claim 3, characterized in that, The connector (120) further includes a collar (124) which surrounds the outside of the first connecting ear (111) and the second connecting ear (112) and is connected to the outer ends of the first shaft segment (122a) and the second shaft segment (123a).

5. The bionic spinal device for testing according to claim 2, characterized in that, In the vertebral unit (100A), the first connecting shaft (122) extends in the left-right direction and is fixed to the connecting seat (121). A locking structure (130) is provided between the upper vertebra (110A) and the first connecting shaft (122). The locking structure (130) has a locked position and an unlocked position. When the locking structure (130) is in the locked position, the relative position of the upper vertebra (110A) and the first connecting shaft (122) is locked. When the locking structure (130) is in the unlocked position, the upper vertebra (110A) can rotate relative to the first connecting shaft (122).

6. The bionic spinal device for testing according to claim 2, characterized in that, When the upper vertebra (110A) and the lower vertebra (120A) in the vertebral unit (100A) are parallel, the line connecting the midpoints of the vertebral bodies (113) of the upper vertebra (110A) and the vertebral bodies (113) of the lower vertebra (120A) passes through the intersection of the first connecting axis (122) and the second connecting axis (123).

7. The bionic spinal device for testing according to any one of claims 1-6, characterized in that, The adjustment structure (200) further includes a top mounting base (230), which includes a first mounting plate (231) and a second mounting plate (232) in the shape of right angles. The first mounting plate (231) is connected to the junction area of ​​the cervical vertebra (100B) and the thoracic vertebra (100C) and is parallel to the top surface of the thoracic vertebra (100C). The second mounting plate (232) is located at the front end of the first mounting plate (231) and extends downward. The top end of the first connecting rod (210) is fixed to the second mounting plate (232).

8. The bionic spinal device for testing according to any one of claims 1-6, characterized in that, The length of the second link (220) is less than the extension length of the lumbar segment (100D).

9. The bionic spinal device for testing according to any one of claims 1-6, characterized in that, The first connecting rod (210) includes a sleeve rod (211) and a plug rod (212). The sleeve rod (211) is hollow inside to form a plug hole (211a), and the wall of the plug hole (211a) is provided with a strip-shaped limiting groove (211b) extending along its axial direction. One end of the plug rod (212) is provided with a radially protruding limiting protrusion (212a). The plug rod (212) is slidably inserted into the plug hole (211a), and the limiting protrusion (212a) is slidably engaged with the strip-shaped limiting groove (211b). Among them, the top end of the sleeve rod (211) and the insert rod (212) is connected to the junction area of ​​the cervical vertebra (100B) and the thoracic vertebra (100C), and the bottom end of the lower one is hinged to the top end of the second connecting rod (220).

10. A method of using a bionic spinal device for testing, characterized in that, The method of using the bionic spine device for testing according to any one of claims 1-9 includes: Place the bionic spine device on the seat to be tested, push and pull back and / or move the vertebrae (110) of the bionic spine device (10) left and right so that it is in a preset sitting posture against the back of the seat to be tested. And / or, adjust the top end of the second link (220) of the bionic spinal device (10) to rotate forward by a preset angle to increase the physiological curvature of the spinal structure (100) of the bionic spinal device (10). And / or, adjust the top end of the second link (220) of the bionic spinal device (10) to rotate backward by a preset angle to reduce the physiological curvature of the spinal structure (100) of the bionic spinal device (10).

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