Buffer device

Abstract

The utility model particularly discloses a buffering device, and belongs to the technical field of buffering and damping. The buffer device comprises a main body, a mounting seat, an adjusting piece and a plurality of elastic pieces, and the main body is provided with a containing groove; the mounting seat is slidably arranged in the accommodating groove and provided with a conduction rod, one end of the conduction rod is connected with the mounting seat, and the other end of the conduction rod penetrates through the main body and protrudes out of the main body; the adjusting part is arranged on one side of the main body and movably connected with the main body; wherein a plurality of elastic pieces are arranged between the adjusting piece and the mounting base, the adjusting piece is configured to move towards or back to the mounting base so as to adjust the tensioning state of the elastic pieces, and the transmission rod can drive the mounting base to move towards the adjusting piece so as to compress the elastic pieces. According to the adjusting piece and the elastic pieces, the adjustability of the buffering device can be improved, the adjusting range of the buffering device is enlarged, and therefore the buffering force can be flexibly adjusted, and the universality of the buffering device is improved.

Description

Technical Field

[0001] This utility model relates to the field of buffering and shock absorption technology, and in particular to a buffer device. Background Technology

[0002] In related technologies, traditional hardware buffers typically use springs of specific specifications to achieve a buffering effect. However, when it is necessary to adjust the buffering force to meet the needs of different application scenarios, since hardware buffers can only use a specific number and specification of springs, the buffering force can only be adjusted within a small range under limited conditions. This reduces the adjustability of the hardware buffer and makes it impossible to flexibly adjust the buffering force, thereby reducing the versatility of the hardware buffer. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a buffer device capable of adjusting the tension of multiple elastic elements, thereby achieving flexible adjustment of the buffering force.

[0004] According to a first aspect of the present invention, a buffer device is provided, comprising a main body, a mounting base, an adjusting member, and a plurality of elastic members. The main body is provided with a receiving groove; the mounting base is slidably disposed within the receiving groove, and the mounting base is provided with a transmission rod, one end of which is connected to the mounting base, and the other end of which passes through the main body and protrudes beyond the main body; the adjusting member is disposed on one side of the main body and is movably connected to the main body; wherein, a plurality of elastic members are provided between the adjusting member and the mounting base, the adjusting member being configured to move toward or away from the mounting base to adjust the tension state of the plurality of elastic members, and the transmission rod being capable of driving the mounting base to move toward the adjusting member to compress the elastic members.

[0005] A buffer device according to an embodiment of the present invention has at least the following beneficial effects:

[0006] The transmission rod of this utility model embodiment can drive the mounting base to move toward the adjusting member to compress the elastic member. Multiple elastic members are disposed between the adjusting member and the mounting base. The adjusting member is configured to move toward or away from the mounting base to adjust the tension state of the multiple elastic members. This realizes the adjustment of the initial deformation of the multiple elastic members when they are not subjected to the pressure of the transmission rod, thereby improving the adjustability of the buffer device, increasing the adjustment range of the buffer force of the buffer device, and thus improving the versatility of the buffer device.

[0007] According to some embodiments of the present invention, the mounting base is provided with a plurality of mounting holes on the side facing the adjusting member, the plurality of mounting holes are spaced apart, and at least one of the mounting holes is used to mount the elastic member.

[0008] According to some embodiments of the present invention, the adjusting member is provided with a sliding groove, the main body passes through the sliding groove, the elastic member is a spring, one end of the elastic member abuts against the mounting base, and the other end abuts against the bottom wall of the sliding groove.

[0009] According to some embodiments of this utility model, on the projection plane along the axial direction of the guide rod, the projection of the slide groove and the projection of the main body are circular. The inner peripheral wall of the slide groove is provided with an internal thread, and the outer peripheral wall of the main body is provided with an external thread that matches the internal thread. The internal thread and the external thread are threadedly engaged.

[0010] According to some embodiments of the present invention, the surface of the adjusting member is provided with a through hole communicating with the slide groove, the side of the main body facing the adjusting member is provided with a first positioning hole, the through hole communicating with the first positioning hole, and the buffer device further includes a positioning member, the positioning member passing through the through hole and connected to the first positioning hole.

[0011] According to some embodiments of the present invention, the buffer device further includes a guide member, which is disposed in the receiving groove and located between the mounting base and the adjusting member. The guide member is movable along the receiving groove. The guide member is provided with a plurality of second positioning holes, which correspond one-to-one with the plurality of mounting holes. The elastic member passes through the second positioning holes.

[0012] According to some embodiments of the present invention, the inner peripheral wall of the receiving groove is provided with a plurality of guide grooves, the plurality of guide grooves are spaced apart along the circumference of the main body, the guide grooves extend along the axial direction of the transmission rod, the outer peripheral wall of the mounting base and the outer peripheral wall of the guide member are respectively provided with a plurality of guide ribs spaced apart, the plurality of guide ribs correspond one-to-one with the plurality of guide grooves, and the guide ribs are slidably connected to the guide grooves.

[0013] According to some embodiments of the present invention, the inner wall of the receiving groove is provided with a step, the step is disposed between the mounting base and the guide member, and the step abuts against the guide member.

[0014] According to some embodiments of the present invention, the end face of the mounting base facing the transmission rod is a conical surface, the bottom wall of the receiving groove is a conical groove corresponding to the conical surface, and the conical surface fits into the conical groove.

[0015] According to some embodiments of the present invention, the end of the conductive rod protruding from the main body is provided with a buffer head, which is made of elastic material.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0018] Figure 1 This is a schematic diagram of an embodiment of the buffer device of this utility model;

[0019] Figure 2 This is a top view of an embodiment of the buffer device of this utility model;

[0020] Figure 3 for Figure 2 A cross-sectional view along the AA direction;

[0021] Figure 4 This is an exploded view of an embodiment of the buffer device of this utility model;

[0022] Figure 5 This is a partial exploded view of an embodiment of the buffer device of this utility model;

[0023] Figure 6 This is a schematic diagram of an embodiment of an adjusting component of this utility model;

[0024] Figure 7 This is a cross-sectional view of one main embodiment of the present utility model.

[0025] Figure label:

[0026] Buffer device 1000;

[0027] Main body 100; receiving groove 110; first groove segment 111; second groove segment 112; external thread 120; first positioning hole 130; guide groove 140; step 150; tapered groove 160; guide hole 170; fixing part 180;

[0028] Mounting base 200; mounting hole 210; conical surface 220;

[0029] 300 connecting rod; 310 buffer head;

[0030] Adjusting component 400; slide groove 410; internal thread 420; through hole 430;

[0031] Elastic component 500;

[0032] Guide component 600; Second positioning hole 610;

[0033] Guide rib 700;

[0034] Positioning component 800;

[0035] Nut 900. Detailed Implementation

[0036] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0037] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, inside, outside, etc., are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and 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 this utility model.

[0038] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.

[0039] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0040] In related technologies, traditional hardware buffers typically use springs of specific specifications to achieve a buffering effect. However, when it is necessary to adjust the buffering force to meet the needs of different application scenarios, since hardware buffers can only use a specific number and specification of springs, the buffering force can only be adjusted within a small range under limited conditions. This reduces the adjustability of the hardware buffer and makes it impossible to flexibly adjust the buffering force, thereby reducing the versatility of the hardware buffer.

[0041] Therefore, some embodiments of this utility model propose a buffer device 1000, as detailed below. Figures 1 to 7 The buffer device 1000 is described below.

[0042] Reference Figure 1 , Figure 2 and Figure 3As shown, in this embodiment of the present invention, the buffer device 1000 includes a main body 100, a mounting base 200, an adjusting member 400, and a plurality of elastic members 500. The main body 100 is provided with a receiving groove 110. Specifically, the receiving groove 110 is located at the left end of the main body 100, with its opening facing the left side of the main body 100. A guide hole 170 is located at the right end of the main body 100, with its opening facing the right side of the main body 100. The guide hole 170 communicates with the receiving groove 110 along the length of the main body 100. In this embodiment, the mounting base 200 is slidably disposed within the receiving groove 110. The mounting base 200 is provided with a guide rod 300. One end of the guide rod 300 is connected to the mounting base 200, and the other end passes through the main body 100 and protrudes beyond it. Specifically, the mounting base 200 passes through the receiving groove 110, and the guide rod 300 is located on the right side of the mounting base 200. The guide rod 300 passes through the guide hole 170 and protrudes beyond it. In this embodiment, the connection between the conductive rod 300 and the mounting base 200 can be welding or other connection methods such as fasteners; this embodiment does not limit the method. In one example, the conductive rod 300 and the mounting base 200 are integrally formed.

[0043] Reference Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment, the adjusting member 400 is disposed on one side of the main body 100 and movably connected to the main body 100. Specifically, the adjusting member 400 is disposed on the left side of the main body 100. In this embodiment, the movable connection between the adjusting member 400 and the main body 100 can be an elastic connection or a threaded connection or other connection methods, and this embodiment does not limit this.

[0044] Reference Figure 3 and Figure 4 As shown, in this embodiment, a plurality of elastic elements 500 are provided between the adjusting member 400 and the mounting base 200. Specifically, the plurality of elastic elements 500 are spaced apart, with one end of each elastic element 500 connected to the adjusting member 400 and the other end connected to the mounting base 200. In this embodiment, the number of elastic elements 500 can be one, two, three, or more, and this embodiment does not limit this. In this embodiment, the adjusting member 400 is configured to move toward or away from the mounting base 200 to adjust the tension state of the plurality of elastic elements 500. It can be understood that when the adjusting member 400 moves toward the mounting base 200, the plurality of elastic elements 500 are in a compressed state, thereby increasing the elastic potential energy of the plurality of elastic elements 500 and thus increasing the buffering force of the buffer device 1000; when the adjusting member 400 moves away from the mounting base 200, the plurality of elastic elements 500 are in a released state, thereby decreasing the elastic potential energy of the plurality of elastic elements 500 and thus decreasing the buffering force of the buffer device 1000. Based on this, this embodiment expands the adjustment range of the buffer force, realizing flexible adjustment of the buffer force.

[0045] Reference Figure 3 and Figure 4 As shown, in this embodiment, the transmission rod 300 can drive the mounting base 200 to move toward the adjusting member 400 to compress the elastic member 500. It can be understood that when the end of the transmission rod 300 protruding from the main body 100 is impacted toward the left side of the buffer device 1000, the transmission rod 300 moves toward the left and drives the mounting base 200 to move toward the adjusting member 400, thereby compressing the elastic member 500 and buffering the impact, thus achieving the buffering effect.

[0046] Based on this, in this embodiment, the transmission rod 300 can drive the mounting base 200 to move toward the adjusting member 400 to compress the elastic member 500. Multiple elastic members 500 are disposed between the adjusting member 400 and the mounting base 200. The adjusting member 400 is configured to move toward or away from the mounting base 200 to adjust the tension state of the multiple elastic members 500. This realizes the adjustment of the initial deformation of the multiple elastic members 500 when they are not subjected to the pressure of the transmission rod 300, thereby improving the adjustability of the buffer device 1000, increasing the adjustment range of the buffer force of the buffer device 1000, and further improving the versatility of the buffer device 1000.

[0047] Reference Figure 3 , Figure 4 and Figure 5 As shown in this embodiment of the invention, the mounting base 200 has a plurality of mounting holes 210 on the side facing the adjusting member 400. These mounting holes 210 are spaced apart. Specifically, the left end face of the mounting base 200 is recessed away from the elastic member 500 to form a plurality of mounting holes 210. The openings of the mounting holes 210 face the elastic member 500, and the mounting holes 210 are evenly distributed. In this embodiment, the number of mounting holes 210 can be 5 or 7, etc., and this embodiment does not limit this. In one example, the number of mounting holes 210 is 9. In this embodiment, at least one mounting hole 210 is fitted with an elastic member 500. Specifically, one end of the elastic member 500 facing the mounting base 200 passes through the mounting hole 210. It can be understood that the number of elastic members 500 can be one, two, or three, etc., and they are respectively installed in the corresponding mounting holes 210. Furthermore, the multiple elastic members 500 can be installed symmetrically or non-symmetrically in the corresponding mounting holes 210, and this embodiment does not limit this. Based on this, different selections of the number of multiple elastic elements 500 can be combined to form different buffer forces, increasing the adjustable range of the buffer force, thereby achieving flexible adjustment of the buffer force.

[0048] Reference Figure 3 and Figure 6As shown, in this embodiment of the present invention, the adjusting member 400 is provided with a groove 410, and the main body 100 passes through the groove 410. Specifically, the adjusting member 400 is recessed away from the main body 100 to form the groove 410, the opening of the groove 410 faces the main body 100, and one end of the main body 100 facing the adjusting member 400 passes through the groove 410. In this embodiment, the elastic member 500 is a spring. One end of the elastic member 500 abuts against the mounting base 200, and the other end abuts against the bottom wall of the groove 410. Specifically, the right end of the elastic member 500 passes through the mounting hole 210 and abuts against the bottom wall of the mounting hole 210, and the left end of the elastic member 500 passes through the groove 410 and abuts against the bottom wall of the groove 410. In this embodiment, multiple elastic members 500 can be selected from springs with different elastic coefficients, thereby combining to form different buffer forces, and thus expanding the adjustable range of the buffer force. Based on this, by changing the relative position of the adjusting element 400 and the mounting base 200, the tension state of multiple elastic elements 500 can be changed, thereby achieving flexible adjustment of the buffering force.

[0049] Based on this, multiple elastic elements 500 can be configured with different specifications and quantities to form different buffering forces, thereby improving the adjustability of the buffer device 1000, increasing the adjustment range of the buffer device 1000, and thus realizing flexible adjustment of the buffering force and improving the versatility of the buffer device 1000.

[0050] Reference Figure 3 , Figure 6 and Figure 7 As shown in this embodiment of the invention, on the projection plane along the axial direction of the guide rod 300, the projections of the slide groove 410 and the main body 100 are circular. The inner peripheral wall of the slide groove 410 is provided with an internal thread 420, and the outer peripheral wall of the main body 100 is provided with an external thread 120 that matches the internal thread 420. The internal thread 420 and the external thread 120 are threadedly engaged. Based on this, in this embodiment, the adjusting member 400 and the main body 100 are movably connected by a threaded connection. Through the threaded engagement of the internal thread 420 and the external thread 120, on the one hand, the adjusting member 400 can move towards or away from the main body 100, and on the other hand, the relative position of the adjusting member 400 and the main body 100 can be locked. This allows for the adjustment of the relative position of the mounting base 200 and the adjusting member 400, thereby adjusting the tension of multiple elastic members 500, increasing the adjustment range of the buffer force, and realizing the adjustment of the buffer force.

[0051] Reference Figure 3 , Figure 6 and Figure 7As shown, in this embodiment of the present invention, the surface of the adjusting member 400 is provided with a through hole 430 communicating with the sliding groove 410. Specifically, the through hole 430 is located on the end face of the adjusting member 400 facing away from the main body 100, and penetrates the adjusting member 400 along the line connecting the adjusting member 400 and the main body 100, thereby communicating with the sliding groove 410. In this embodiment, the main body 100 is provided with a first positioning hole 130 on the side facing the adjusting member 400. Specifically, the first positioning hole 130 is located on the end face of the main body 100 facing the adjusting member 400 and is recessed on the side facing away from the adjusting member 400. The opening of the first positioning hole 130 faces the adjusting member 400, and the first positioning hole 130 is arranged around the receiving groove 110. In this embodiment, the through hole 430 communicates with the first positioning hole 130. The buffer device 1000 also includes a positioning member 800, which passes through the through hole 430 and is connected to the first positioning hole 130.

[0052] Based on this, when it is necessary to adjust the relative position of the adjusting member 400 and the main body 100, the slide groove 410 and the main body 100 rotate relative to each other through a threaded connection, thereby changing the relative position of the adjusting member 400 and the main body 100 until the through hole 430 connects with one of the plurality of first positioning holes 130. The positioning member 800 passes through the through hole 430 and the first positioning hole 130 in sequence and is fastened to the first positioning hole 130, thereby locking the relative position of the adjusting member 400 and the main body 100, and thus locking the adjustment buffer force. In this embodiment, the fastening connection between the positioning member 800 and the first positioning hole 130 can be achieved by a snap-fit ​​connection or by other connection methods such as a threaded connection; this embodiment does not limit this. In this embodiment, the positioning member 800 and the first positioning hole 130 are fastened through an interference fit.

[0053] Reference Figure 3 , Figure 4 and Figure 5 As shown, in this embodiment of the present invention, the buffer device 1000 further includes a guide member 600. The guide member 600 is disposed within the receiving groove 110 and located between the mounting base 200 and the adjusting member 400. The guide member 600 passes through the receiving groove 110 and can slide left and right along the receiving groove 110. In this embodiment, the guide member 600 is provided with a plurality of second positioning holes 610. The second positioning holes 610 penetrate the guide member 600 along the line connecting the mounting base 200 and the adjusting member 400. The plurality of second positioning holes 610 correspond one-to-one with the plurality of mounting holes 210. The elastic member 500 passes through the second positioning holes 610. It can be understood that the plurality of elastic members 500 correspondingly passing through the plurality of second positioning holes 610 can, on the one hand, ensure the stability of the movement of the elastic members 500 during compression or elongation, and on the other hand, ensure the relative position of the plurality of elastic members 500, reduce the possibility of misalignment of the plurality of elastic members 500, reduce the risk of entanglement of the plurality of elastic members 500, thereby improving the operational stability of the buffer device 1000.

[0054] Reference Figure 4 , Figure 5 and Figure 7 As shown, in this embodiment of the present invention, the inner peripheral wall of the receiving groove 110 is provided with a plurality of guide grooves 140. The plurality of guide grooves 140 are spaced apart along the circumference of the main body 100 and extend along the axial direction of the guide rod 300. Specifically, the plurality of guide grooves 140 are spaced apart along the periphery of the receiving groove 110 and extend from the opening of the receiving groove 110 to the bottom wall of the receiving groove 110 along the axial direction of the guide rod 300. In this embodiment, the outer peripheral wall of the mounting base 200 and the outer peripheral wall of the guide member 600 are respectively provided with a plurality of guide ribs 700 spaced apart. The plurality of guide ribs 700 correspond one-to-one with the plurality of guide grooves 140, and the guide ribs 700 are slidably connected to the guide grooves 140. Based on this, when the mounting base 200 and the guide member 600 are inserted into the receiving groove 110, multiple guide ribs 700 are inserted into multiple guide grooves 140 in a one-to-one correspondence, thereby ensuring the stability of the axial movement of the mounting base 200 and the guide member 600 along the receiving groove 110, and restricting the relative rotation of the mounting base 200 and the guide member 600, reducing the risk of multiple elastic members 500 getting entangled, improving the motion stability of multiple elastic members 500, and thus improving the motion stability and reliability of the buffer device 1000.

[0055] Reference Figure 3 , Figure 4 and Figure 7 As shown in the embodiment of this utility model, the inner wall of the receiving groove 110 is provided with a step 150, which is located between the mounting base 200 and the guide member 600, and the step 150 abuts against the guide member 600. Specifically, the receiving groove 110 includes a first groove segment 111 and a second groove segment 112 arranged sequentially along the direction of the adjusting member 400 toward the main body 100. The projection of the receiving groove 110 in the length direction of the buffer device 1000 is circular. The inner diameter of the first groove segment 111 is larger than the inner diameter of the second groove segment 112. Therefore, the step 150 is formed at the junction of the first groove segment 111 and the second groove segment 112. The guide member 600 passes through the first groove segment 111, and the mounting seat 200 passes through the second groove segment 112. When the guide member 600 moves toward the mounting seat 200, the side of the guide member 600 facing the mounting seat 200 abuts against the step 150, thereby restricting the guide member 600 from continuing to move toward the mounting seat 200, thereby ensuring the stable operation of the elastic member 500 during compression or elongation.

[0056] Reference Figure 3 , Figure 5 and Figure 7As shown in the embodiment of this utility model, the end of the mounting base 200 facing the transmission rod 300 is configured as a conical surface 220, and the bottom of the receiving groove 110 is configured as a conical groove 160 corresponding to the conical surface 220, with the conical surface 220 passing through the conical groove 160. Based on this, when the mounting base 200 and the guide rod 300 are manufactured as a single piece, the mounting base 200 and the guide rod 300 are connected by a conical surface 220, thereby reducing stress concentration and enhancing the connection strength between the mounting base 200 and the guide rod 300. When the mounting base 200 is located to the left of the step 150 and moves to the right, the conical surface 220 can improve the smoothness of the mounting base 200 passing through the step 150. When the mounting base 200 moves to the right to the bottom wall of the receiving groove 110, the conical surface 220 abuts against the bottom wall of the conical groove 160, thereby preventing the mounting base 200 from detaching from the main body 100 and limiting the distance the mounting base 200 can move. It can be understood that the conical surface 220 can improve the operational stability and reliability of the buffer device 1000.

[0057] Reference Figure 3 , Figure 4 and Figure 5 As shown in this embodiment of the invention, a buffer head 310 is provided at one end of the conduction rod 300 protruding from the main body 100. The buffer head 310 is made of an elastic material. Specifically, the conduction rod 300 and the buffer head 310 are separate structures. The buffer head 310 is connected to the end of the conduction rod 300 protruding from the main body 100. In this embodiment, the connection between the buffer head 310 and the conduction rod 300 can be achieved by bonding, fastener connection, or other connection methods. This embodiment does not limit the connection method. In this embodiment, the material of the buffer head 310 can be rubber, sponge, wood, acrylic, nylon, or other materials. This embodiment does not limit the material. The buffer head 310 can achieve elastic contact, thereby improving the buffering capacity of the buffer device 1000 and further improving the reliability of the buffer device 1000.

[0058] Reference Figure 1 As shown in this embodiment of the invention, a fixing part 180 is provided at one end of the main body 100 facing away from the receiving groove 110. The fixing part 180 can fix the buffer device 1000 in the application scenario. In one example, the buffer device 1000 also includes two nuts 900, which are threadedly engaged with the fixing part 180 to fix and lock the buffer device 1000 in the application scenario.

[0059] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, and not to limit it. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A buffer device, characterized in that, include: The main body is equipped with a receiving groove; The mounting base is slidably disposed in the receiving groove. The mounting base is provided with a guide rod, one end of which is connected to the mounting base, and the other end passes through the main body and protrudes from the main body. An adjusting component is located on one side of the main body and is movably connected to the main body; The adjusting member and the mounting base are provided with a plurality of elastic members. The adjusting member is configured to move toward or away from the mounting base to adjust the tension of the plurality of elastic members. The transmission rod can drive the mounting base to move toward the adjusting member to compress the elastic members.

2. The buffer device according to claim 1, characterized in that, The mounting base has multiple mounting holes on the side facing the adjusting member, and the multiple mounting holes are spaced apart. At least one of the mounting holes is used to mount the elastic member.

3. The buffer device according to claim 1, characterized in that, The adjusting component is provided with a sliding groove, the main body passes through the sliding groove, the elastic component is a spring, one end of the elastic component abuts against the mounting base, and the other end abuts against the bottom wall of the sliding groove.

4. The buffer device according to claim 3, characterized in that, On the projection plane along the axial direction of the guide rod, the projection of the groove and the projection of the main body are circular. The inner peripheral wall of the groove is provided with an internal thread, and the outer peripheral wall of the main body is provided with an external thread that matches the internal thread. The internal thread and the external thread are threadedly engaged.

5. The buffer device according to claim 3, characterized in that, The surface of the adjusting member is provided with a through hole communicating with the slide groove. The main body is provided with a first positioning hole on the side facing the adjusting member. The through hole communicates with the first positioning hole. The buffer device also includes a positioning member, which passes through the through hole and is connected to the first positioning hole.

6. The buffer device according to claim 2, characterized in that, The buffer device further includes a guide member, which is disposed in the receiving groove and located between the mounting base and the adjusting member. The guide member is movable along the receiving groove. The guide member is provided with a plurality of second positioning holes, which correspond one-to-one with the plurality of mounting holes. The elastic member passes through the second positioning holes.

7. The buffer device according to claim 6, characterized in that, The inner peripheral wall of the receiving groove is provided with a plurality of guide grooves, which are spaced apart along the circumference of the main body and extend along the axial direction of the transmission rod. The outer peripheral wall of the mounting base and the outer peripheral wall of the guide member are respectively provided with a plurality of guide ribs spaced apart, and the plurality of guide ribs correspond one-to-one with the plurality of guide grooves. The guide ribs are slidably connected to the guide grooves.

8. The buffer device according to claim 6, characterized in that, The inner wall of the receiving groove is provided with a step, which is located between the mounting base and the guide member, and the step abuts against the guide member.

9. The buffer device according to claim 1, characterized in that, The end face of the mounting base facing the guide rod is a conical surface, and the bottom wall of the receiving groove is a conical groove corresponding to the conical surface, with the conical surface fitting into the conical groove.

10. The buffer device according to claim 1, characterized in that, The end of the transmission rod that protrudes from the main body is provided with a buffer head, which is made of elastic material.

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