Spring buffer fixing structure and impact test equipment

Abstract

The invention discloses a spring buffer fixing structure and impact test equipment, and relates to the technical field of spring test.The spring buffer fixing structure comprises a base, a plurality of abutting parts, a synchronous part and a driving part, the abutting parts are arranged in the circumferential direction of the base at intervals, and the synchronous part is arranged on the base; each abutting part is provided with an inner end facing the middle of the base and an outer end opposite to the inner end, a clamping space is defined between the inner ends of the abutting parts and used for clamping the spring buffer, the abutting parts are linearly and movably installed on the base in the inward-outward direction, and at least one of the abutting parts is arranged to be a driving abutting part. According to the technical scheme, the linkage structure is adopted, and in the actual operation process, the good fixing effect on multiple different types of elevator volute spiral spring buffers can be achieved. And therefore, the convenience and the safety of fixing the volute spiral spring buffer of the elevator are improved to a certain extent.

Description

Technical Field

[0001] The invention relates to the technical field of spring testing, and in particular to a spring buffer fixing structure and impact testing equipment. Background Art

[0002] The elevator spiral spring buffer is a common elevator safety device, which is mainly used to reduce the impact force of the elevator car and protect the lives of passengers when the elevator falls or hits the top. Before installing and using the elevator spiral spring buffer, it is necessary to conduct an impact test. At present, on the impact equipment, the elevator spiral spring buffer needs to be fixed and installed using the corresponding carrier first, and the traditional buffer has a variety of different specifications. Generally, when conducting experiments, the clamp rod is temporarily used to clamp the downward end of the buffer horizontally, and then the clamp rod is fixed to the base. This fixing method requires manual installation of multiple horizontal bars. When it is necessary to test a large number of spiral buffer products of different specifications, it is necessary to frequently replace the product and reinstall it, which is time-consuming and labor-intensive, and sometimes affects the test results. If the horizontal plate is not installed in place, the elevator spiral spring buffer will even fly out horizontally after being impacted, causing damage to nearby people or equipment. Therefore, this traditional fixing method is not only inconvenient but also has poor safety. Summary of the invention

[0003] The main purpose of the present invention is to propose a spring buffer fixing structure, which aims to solve the problem that the traditional elevator scroll spiral spring buffer testing fixing device is not only inconvenient but also has poor safety during use.

[0004] To achieve the above object, the spring buffer fixing structure proposed by the present invention includes:

[0005] Base;

[0006] A plurality of abutting portions are arranged at intervals along the circumference of the base, each of the abutting portions has an inner end facing the middle of the base and an outer end opposite to the inner end, a clamping space is defined between the inner ends of the plurality of abutting portions for clamping a spring buffer, each of the abutting portions is movably mounted on the base along an inner-outer direction, and at least one of the plurality of abutting portions is configured as a driving abutting portion;

[0007] a synchronization member connected to the plurality of the abutting portions to enable the plurality of the abutting portions to move synchronously; and

[0008] The driving member is used to drive the driving pressing part to move linearly.

[0009] In one embodiment, a first convex shaft portion is provided on the upper end surface of each of the abutting portions;

[0010] The synchronizer is configured as an annular member, a plurality of guide grooves are provided on the annular member, a plurality of the first convex shaft portions are respectively and correspondingly arranged in the plurality of guide grooves, and an inclined angle is formed between the extension direction of the plurality of guide grooves and the radial direction of the annular member.

[0011] In one embodiment, a limit rotation shaft portion rotatably installed along an axis in the up-down direction is provided on the base, and a plurality of limit rotation shaft portions are provided and spaced apart along the circumference of the base for rolling contact with the outer side surface of the annular member.

[0012] In one embodiment, the radial position of the limiting rotating shaft portion along the annular member is adjustable; and / or,

[0013] The position-limiting rotating shaft portion comprises a shaft body and a bearing arranged on the shaft body, and an outer ring of the bearing is in rolling contact with an outer side surface of the annular member.

[0014] In one embodiment, a slide groove portion is formed on the base, and the slide groove portion is extended inward and outward to cooperate with a matching portion provided at the lower end of the abutting portion, and the synchronizer is connected to the upper ends of the plurality of abutting portions.

[0015] In one embodiment, the base includes a seat body and a limiting plate, a sinking groove is formed on the seat body, the limiting plate covers an upper opening of the sinking groove, and the sliding groove portion is defined between the seat body and the limiting plate.

[0016] In one embodiment, the driving abutment portion is provided with a threaded hole;

[0017] The driving member comprises:

[0018] A mounting seat is arranged on the base, and a limiting portion is arranged on the mounting seat; and

[0019] The threaded rod is rotatably installed along an axis extending inward and outward, the limiting portion limits the threaded rod to move in a straight line inward and outward, and the threaded end of the threaded rod is threadedly installed in the threaded hole of the driving and tightening portion.

[0020] In one embodiment, the position of the mounting seat along the inner and outer directions is adjustable; and / or,

[0021] The mounting seat, the threaded rod and the driving pressing part are arranged in a one-to-one correspondence as a driving group, and a plurality of driving groups are arranged; and / or,

[0022] A handle is provided at the end of the threaded rod.

[0023] In one embodiment, the base includes a base body and a bottom plate arranged above the base body, the distance between the base body and the bottom plate is adjustable, and a plurality of the abutting portions are arranged on the bottom plate; and / or,

[0024] The spring buffer fixing structure also includes an inner limiting shaft portion arranged in the clamping space and used for being sleeved in the spring buffer.

[0025] The present invention also includes an impact test device, the impact test device includes a spring buffer fixing structure, the spring buffer fixing structure includes:

[0026] Base;

[0027] A plurality of abutting portions are arranged at intervals along the circumference of the base, each of the abutting portions has an inner end facing the middle of the base and an outer end opposite to the inner end, a clamping space is defined between the inner ends of the plurality of abutting portions for clamping a spring buffer, each of the abutting portions is movably mounted on the base along an inner-outer direction, and at least one of the plurality of abutting portions is configured as a driving abutting portion;

[0028] a synchronization member connected to the plurality of the abutting portions to enable the plurality of the abutting portions to move synchronously; and

[0029] The driving member is used to drive the driving pressing part to move linearly.

[0030] In the technical solution of the present invention, a linkage structure is adopted. In the actual operation process, by rotating the handle on one side of the entire base, the multiple clamping blocks can be driven to move radially along the annular member at the same time through the annular member, so that the downward end of the elevator scroll coil spring buffer can be fixed and released at the same time through the multiple clamping blocks. At the same time, the multiple clamping blocks in this solution all have a movement stroke along the radial direction of the annular member. In the actual use process, a good fixing effect can be achieved for various types of elevator scroll coil spring buffers. Thereby, not only the convenience and safety of fixing the elevator scroll coil spring buffer are improved to a certain extent, but also the versatility of the entire device is further enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0032] Figure 1A schematic diagram of the overall structure of the spring buffer fixing structure provided by the present invention;

[0033] Figure 2 for Figure 1 The spring buffer fixing structure provided in does not include a schematic diagram of the structure of the ring-shaped member;

[0034] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0035] Figure 4 for Figure 2 The structural diagram does not include some mounting blocks, drive members and drive abutment parts;

[0036] Figure 5 for Figure 4 A schematic diagram of the enlarged structure at B in the middle;

[0037] Figure 6 for Figure 1 A schematic diagram of the bottom structure of the spring buffer fixing structure provided in;

[0038] Figure 7 for Figure 1 A schematic diagram of the structure of the middle ring member;

[0039] Figure 8 for Figure 1 A schematic diagram of the structure in which the middle abutting portion includes a through hole;

[0040] Fig. 9 for Figure 1 A schematic diagram of the structure in which the middle tightening portion includes a threaded hole.

[0041] Description of Figure Numbers:

[0042] 1. Spring buffer fixing structure; 2. Base; 21. Seat body; 211. First elongated hole; 22. Bottom plate; 23. Fixing plate; 231. Second elongated hole; 24. Fixing bolt; 3. Tightening part; 31. Clamping block; 311. First convex part; 312. Second convex part; 313. Through hole; 32. Connecting block; 321. Threaded hole; 322. Adjusting nut; 33. First convex shaft part; 4. Ring member; 41. Guide groove; 5. Driving member; 51. Mounting seat; 511. Limiting part; 52. Threaded rod; 53. Handle; 6. Limiting rotating shaft part; 61. Shaft body; 62. Bearing; 63. Mounting groove; 64. Mounting block; 65. Screw; 66. Elongated hole; 67. Guide pin; 7. Slide groove part; 71. Sinking groove; 72. Limiting plate; 8. Clamping space.

[0043] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0046] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0047] The elevator spiral spring buffer is a common elevator safety device, which is mainly used to reduce the impact force of the elevator car and protect the lives of passengers when the elevator falls or hits the top. Before installing and using the elevator spiral spring buffer, it is necessary to perform an impact test on it. At present, on the impact equipment, it is necessary to use the corresponding carrier to fix and install the elevator spiral spring buffer first, and the traditional buffer has a variety of different specifications. Generally, when conducting experiments, the clamp rod is temporarily used to clamp the downward end of the buffer horizontally, and then the clamp rod is fixed on the base 2. This fixing method requires manual installation of multiple horizontal bars. When it is necessary to test a large number of spiral buffer products of different specifications, it is necessary to frequently replace the products and reinstall them, which is time-consuming and labor-intensive, and sometimes affects the test results. If the cross plate is not installed in place, the elevator spiral spring buffer will even fly out horizontally after being impacted, causing damage to nearby people or equipment, so this traditional fixing method is not only inconvenient but also has poor safety.

[0048] The present invention proposes a spring buffer fixing structure 1 for solving the above problems.

[0049] See also Figures 1 to 9 In one embodiment of the present invention, the spring buffer fixing structure 1 can effectively fix the elevator scroll spiral spring buffer, and compared with the traditional fixing structure, its operation convenience and fixing stability are greatly improved. Specifically, the spring buffer fixing structure 1 includes a base 2, a plurality of abutting parts 3, a synchronization member and a driving member 5. The upper end surface of the base 2 is a specific structural installation surface. The plurality of abutting parts 3 are evenly arranged on the upper end surface of the base 2 around the center of the upper end surface of the base 2, and the inner end positions of the plurality of abutting parts 3 corresponding to the center of the upper end surface of the base 2 jointly define a clamping space 8. It should be noted that the inner end and the outer end of the abutting part 3 correspond to the inward end facing the clamping space 8 and the outward end away from the clamping space 8 on the horizontal plane, that is, the inward and outward directions. When the elevator spiral spring buffer is actually fixed, the downward end of the elevator spiral spring buffer can be placed in the clamping space 8, and the driving member 5 drives a driving ground connection part connected thereto to move. When the driving ground connection part moves, it will synchronously drive the synchronous member to rotate on the upper end surface of the base 2. The synchronous member is connected to multiple abutting parts 3, so during the rotation of the synchronous member, it will drive multiple abutting parts 3 to move toward the center position of the upper end surface of the base 2 at the same time, and finally clamp and fix the downward end of the elevator spiral spring buffer through the inner ends of multiple abutting parts 3 at the same time. The elevator spiral spring buffer is fixed by the above structure. In the specific operation process, multiple abutting parts 3 can be driven to move at the same time by one driving member 5, so that the buffer can be quickly fixed and released, and the convenience of the entire operation is greatly improved. In addition, the circumference of the buffer is fixed at the same time by multiple abutting parts 3, and the fixing stability is also effectively improved. Compared with the traditional installation of the end of the buffer by multiple clamping rods, its convenience and safety are also greatly enhanced.

[0050] Among them, the synchronization part is specifically set to be an annular part 4. When the buffer is fixed, the downward end of the buffer first passes through the center hole of the annular part 4, and then is placed in the clamping space 8 on the base 2. When the annular part 4 rotates, the guide groove 41 can apply force to the first convex shaft part 33. At the same time, because an inclined angle is formed between the extension direction of the guide groove 41 and the radial direction of the annular part 4, during the rotation of the annular part 4, the clamping part 3 will have a movement trend toward the clamping space 8 and toward the circumferential direction of the base 2. At the same time, since the clamping part 3 is installed on the base 2 along an inward and outward linear movement, during the rotation of the annular part 4, the clamping part 3 will be prompted to move along the inward and outward upward linear movement, thereby realizing the fixation and release of the buffer. It can be imagined that the inclination directions of the multiple guide grooves 41 should be inclined in one direction at the same time, so that during the rotation of the annular member 4, the multiple pressing parts 3 can be moved toward or away from each other at the same time, and the size of the inclination angle should be set at an acute angle to the radial direction of the annular member 4. Generally speaking, the inclination angle is set at about 45° to ensure the movement efficiency of the multiple pressing parts 3 and better reduce the resistance during the rotation of the annular member 4.

[0051] As mentioned above, the annular member 4 is installed on the upper end surface of the base 2. Since a buffer needs to be placed in the central hole of the annular member 4, in order not to affect the fixation of the buffer, in this embodiment, a plurality of limit rotation shaft portions 6 are provided on the upper end surface of the base 2 at the circumferential positions corresponding to the annular member 4. During installation, the annular member 4 is installed in the middle of the plurality of limit rotation shaft portions 6, and the annular member 4 can rotate between the plurality of limit rotation shaft portions 6. Specifically, in order to reduce the friction between the annular member 4 and the limiting shaft portion 6 as much as possible, thereby allowing the annular member 4 to rotate more smoothly, in this solution, the limiting shaft portion 6 is specifically configured as two parts, wherein the shaft body 61 is configured along the vertical direction, and a bearing 62 is provided on the shaft body 61. When the annular member 4 rotates, because the outer wall of the bearing 62 abuts against the arc-shaped outer wall of the annular member 4, when the annular member 4 rotates, the inner and outer rings of the bearing 62 can rotate, thereby minimizing the resistance encountered by the annular member 4 during rotation.

[0052] At the same time, considering that only the common limiting effect of multiple shaft bodies 61 can ensure the installation effect of the annular member 4, in order to avoid as much as possible the failure of the bearing 62 to form a good interference effect with the annular member 4, thereby causing vibration during the rotation of the annular member 4, in this embodiment, the shaft body 61 and the base 2 are relatively separated and arranged to achieve the adjustment of the position of the shaft body 61. Specifically, a mounting groove 63 extending in the radial direction of the annular member 4 is provided on the upper end surface of the base 2, and a mounting block 64 is fixed to the inner side of the mounting groove 63 by a screw 65. In order to realize that turning the screw 65 can drive the mounting block 64 to move in the radial direction of the annular member 4 in the mounting groove 63, a guide structure is provided between the mounting block 64 and the base 2, and the guide structure includes two oblong holes 66 opened on the mounting block 64 along the direction of the annular member 4, and two guide pins 67 are provided on the base 2 in the vertical direction. When the screw 65 is turned, the screw 65 can drive the mounting block 64 to move toward the direction of the annular member 4. During this process, the oblong holes 66 and the guide pins 67 cooperate to guide, so that the multiple bearings 62 can maintain a good contact state with the annular member 4, thereby avoiding vibration of the annular member 4 during rotation as much as possible. In order to further ensure the limiting effect of the annular member 4, at least two shaft bodies 61 are provided on the upper end surface of one mounting block 64. And through the above structure, the position of the annular portion can be adjusted by adjusting the positions of the plurality of mounting blocks 64, so that the center of the annular portion corresponds to the clamping space 8 on the base 2 as much as possible.

[0053] For the installation of the clamping part 3, a slide groove part 7 is provided on the base 2, and the slide groove part 7 is extended inward and outward, and the slide groove part 7 can firstly guide the movement of the clamping part 3 along the radial direction of the annular member 4, and furthermore, the slide groove part 7 can limit the vertical direction of the clamping part 3. Specifically, the base 2 includes a seat body 21 and a limiting plate 72, and a sinking groove 71 is formed on the seat body 21, and the limiting plate 72 covers the upper opening of the sinking groove 71, and the slide groove part 7 is limited between the seat body 21 and the limiting plate 72.

[0054] At least one of the multiple abutting parts 3 is a driving abutting part 3. Considering that after the entire spring buffer fixing structure 1 is installed at a designated position, there may be a situation where the space at one or several side ends of the spring buffer fixing structure 1 is limited, and it is inconvenient to operate in this direction. Therefore, in this solution, the multiple abutting parts 3 are all set as structural components that can be installed in conjunction with the driving member 5, and the driving member 5 can be selected to be connected to any of the abutting parts 3.

[0055] Specifically, a threaded hole 321 is provided on the driving pressing part 3 , and the threaded rod 52 is driven by the handle 53 to rotate in the limiting part 511 on the mounting seat 51 , thereby driving the pressing part 3 to slide in the sinking groove 71 .

[0056] It is known that during the rotation of the annular member 4, the plurality of the abutting portions 3 can be driven to fix the spring buffer at the same time. During the rotation of the annular member 4, the movement strokes generated by the plurality of the abutting portions 3 are the same. However, if the initial positions of the plurality of the abutting portions 3 are different, then the forces exerted when the plurality of the abutting portions 3 contact the spring buffer are different, and the plurality of the abutting portions 3 will change the specific prevention positions of the spring buffers to a certain extent during the force application process. In order to ensure that the plurality of the abutting portions 3 exert the same downward pressure on the spring buffer, thereby ensuring the stability of the fixed position of the spring buffer, an adjusting nut 322 is provided at one end of the abutting portion 3 away from the clamping space 8, and one end of the adjusting nut 322 abuts against one end of the mounting seat 51. The distance between the abutting portion 3 and the mounting seat 51 can be adjusted by rotating the adjusting nut 322, so that the plurality of the abutting portions 3 can be respectively adjusted to the same position in the plurality of sinking grooves 71.

[0057] In this embodiment, the abutting portion 3 is configured to be composed of a clamping block 31 and a connecting block 32, wherein the connecting block 32 is disposed at one end of the clamping block 31 away from the clamping space 8, the adjusting nut 322 and the threaded hole 321 are both disposed on the connecting block 32, and the clamping block 31 is provided with a through hole 313 corresponding to the threaded rod 52. The end of the clamping block 31 corresponding to the clamping space 8 is configured as an arc-shaped surface, and a portion of the first convex portion 311 extends downward from this end, and one side of the first convex portion 311 corresponds to one end wall of the sinking groove 71, and the first convex portion 311 can limit the movement of the clamping block 31 inwardly and upwardly. The second convex portion 312 extends outwardly from the horizontal side of the clamping block 31, and the lower end surface of the limiting plate 72 contacts the upper end surface of the second convex portion 312, thereby limiting the vertical direction of the clamping block 31. The first cam portion 33 is arranged on the connecting block 32. During the actual setting process, the first cam portion 33 can also be arranged on the clamping block 31. In order to reduce the friction between the first cam portion 33 and the guide groove 41, a bearing 62 is also provided on the first cam portion 33. The outer wall of the bearing 62 contacts the inner wall of the guide groove 41, so that the annular member 4 can better drive the multiple clamping blocks 31 to move simultaneously.

[0058] In this embodiment, the base 2 is provided in two parts, wherein the bottom plate 22 is provided at the upper end of the seat body 21 and fixed by a fixing structure, and the plurality of the abutting portions 3 and the plurality of the mounting blocks 64 are provided on the bottom plate 22. The bottom plate 22 and the seat body 21 are provided separately, and the relative position of the relevant structure on the bottom plate 22 with respect to the seat body 21 can be adjusted by the fixing structure. Thus, in actual use, the flexibility of the entire structure is improved. Specifically, a plurality of first elongated holes 211 are provided on the upper end surface of the seat body 21, and a mounting circular hole (not shown) is provided on the bottom plate 22. One end of a fixing bolt 24 passes through the mounting circular hole and the first elongated hole 211 from top to bottom and is provided below the upper end surface of the seat body 21. A plurality of fixing plates 23 are provided at a position below the upper end portion of the seat body 21 corresponding to the plurality of first elongated holes 211. A plurality of second elongated holes 231 are provided on the fixing plate 23 corresponding to the plurality of first elongated holes 211. The downward end of the fixing bolt 24 passes through the second elongated hole 231 and is then fixed by a nut, thereby connecting the bottom plate 22, the seat body 21 and the fixing plate 23 as a whole. Due to the provision of the above elongated holes, the position of the bottom plate 22 can be adjusted on the seat body 21, and can be adjusted according to actual conditions during actual use.

[0059] The present scheme also discloses an impact test device, which includes a spring buffer fixing structure 1. The specific structure of the spring buffer fixing structure 1 is as described in the above embodiment. Since the impact test device adopts all the technical schemes in the above embodiment, it has all the beneficial effects in the above embodiment, which will not be described one by one here.

[0060] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A spring buffer fixing structure, characterized in that: include: Base; A plurality of abutting portions are arranged at intervals along the circumference of the base, each of the abutting portions has an inner end facing the middle of the base and an outer end opposite to the inner end, a clamping space is defined between the inner ends of the plurality of abutting portions for clamping a spring buffer, each of the abutting portions is movably mounted on the base along an inner-outer direction, and at least one of the plurality of abutting portions is configured as a driving abutting portion; a synchronization member connected to the plurality of the abutting portions to enable the plurality of the abutting portions to move synchronously; and The driving member is used to drive the driving pressing part to move linearly.

2. The spring buffer fixing structure according to claim 1, characterized in that: A first convex shaft portion is provided on the upper end surface of each of the abutting portions; The synchronizer is configured as an annular member, a plurality of guide grooves are provided on the annular member, a plurality of the first convex shaft portions are respectively and correspondingly arranged in the plurality of guide grooves, and an inclined angle is formed between the extension direction of the plurality of guide grooves and the radial direction of the annular member.

3. The spring buffer fixing structure according to claim 2, characterized in that: The base is provided with a limit rotating shaft portion rotatably installed along the vertical axis. The limit rotating shaft portions are provided in plurality and are spaced apart along the circumference of the base for rolling contact with the outer side surface of the annular member.

4. The spring buffer fixing structure according to claim 3, characterized in that: The radial position of the limiting rotating shaft portion along the annular member is adjustable; and / or, The position-limiting rotating shaft portion comprises a shaft body and a bearing arranged on the shaft body, and an outer ring of the bearing is in rolling contact with an outer side surface of the annular member.

5. The spring buffer fixing structure according to claim 1, characterized in that: A slide groove portion is formed on the base, and the slide groove portion is extended inward and outward directions to cooperate with a matching portion arranged at the lower end of the abutting portion, and the synchronizer is connected to the upper ends of the plurality of abutting portions.

6. The spring buffer fixing structure according to claim 5, characterized in that: The base includes a seat body and a limiting plate. A sinking groove is formed on the seat body. The limiting plate covers the upper opening of the sinking groove. The sliding groove portion is defined between the seat body and the limiting plate.

7. The spring buffer fixing structure according to claim 1, characterized in that: The driving abutting portion is provided with a threaded hole; The driving member comprises: A mounting seat is arranged on the base, and a limiting portion is arranged on the mounting seat; and The threaded rod is rotatably installed along an axis extending inward and outward, the limiting portion limits the threaded rod to move in a straight line inward and outward, and the threaded end of the threaded rod is threadedly installed in the threaded hole of the driving and tightening portion.

8. The spring buffer fixing structure according to claim 7, characterized in that: The position of the mounting seat in the inner and outer directions is adjustable; and / or, The mounting seat, the threaded rod and the driving pressing part are arranged in a one-to-one correspondence as a driving group, and a plurality of driving groups are arranged; and / or, A handle is provided at the end of the threaded rod.

9. The spring buffer fixing structure according to claim 1, characterized in that: The base comprises a base body and a bottom plate arranged above the base body, the distance between the base body and the bottom plate is adjustable, and a plurality of the abutting portions are arranged on the bottom plate; and / or, The spring buffer fixing structure also includes an inner limiting shaft portion arranged in the clamping space and used for being sleeved in the spring buffer.

10. An impact test device, characterized in that: It comprises the spring buffer fixing structure as claimed in any one of claims 1 to 9.

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