A buffer fixture and inspection system placed on a track
By combining a two-stage buffer mechanism with quick-release clamps, the problem that existing buffer devices cannot effectively protect inspection robots is solved, achieving effective protection and convenient installation of inspection robots.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY BEIJING BUREAU GRP CO LTD TIANJIN DEPOT
- Filing Date
- 2025-08-04
- Publication Date
- 2026-05-26
Smart Images

Figure CN224277171U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of train inspection technology, and in particular relates to a buffer fixture and inspection system placed on the track. Background Technology
[0002] Currently, during train inspections, inspection robots are typically used for routine checks. After the inspection robot completes its inspection, a buffer device is installed to prevent it from colliding with the track and derailing, thus protecting the robot from damage.
[0003] However, current buffer devices are not sufficient to protect inspection robots effectively. Utility Model Content
[0004] To address the aforementioned technical problems, this utility model discloses a buffer fixture placed on a track, which can absorb larger impact loads through a two-stage buffering effect, thereby better meeting the buffering requirements of the inspection robot. This utility model also discloses an inspection system incorporating the aforementioned buffer fixture.
[0005] The specific technical solution of this utility model is as follows:
[0006] A buffer fixture placed on a track includes:
[0007] A fixed base is provided with a clamping member one and a clamping member two, at least one of the clamping member one and the clamping member two can move relative to the other, so that the clamping member one and the clamping member two clamp the track or release the track.
[0008] A buffer element, wherein the buffer element is connected to a fixed base via an elastic member;
[0009] The elastic member includes a reset member and a guide rod, with the reset member sleeved on the outside of the guide rod; in the fixed seat and the buffer member, the guide rod is fixedly connected to one of them and slidably connected to the other.
[0010] This application uses clamping component one and clamping component two to clamp the track, so as to stably place the buffer fixture on the track. When the inspection robot collides with the buffer fixture, it first contacts the buffer component. The buffer component achieves the first level of buffering for the inspection robot through its own characteristics. Under the continuous action of the impact load of the inspection robot, the reset component in the elastic component deforms and compresses to store energy, and causes the buffer component to move closer to the fixed seat, thereby achieving the second level of buffering for the inspection robot. After the impact load disappears, the reset component releases the stored energy and pushes the buffer component away from the fixed seat to achieve reset.
[0011] Preferably, the buffer is made of rubber material.
[0012] Rubber materials have a certain deformation capacity, which can well meet the requirements for vibration damping.
[0013] Preferably, the buffer has a plurality of symmetrically arranged holes, the axis of which is set at an angle to the extension line of the track surface on which the buffer fixture is placed.
[0014] The multiple holes facilitate the compression of the buffer, which in turn causes further deformation of the buffer, resulting in greater energy storage and thus providing better damping force for the inspection robot.
[0015] Preferably, the side of the buffer member away from the fixed seat is configured as a convergent structure.
[0016] The clustered structure of the buffer component can better absorb the impact load brought by the inspection robot and better protect the inspection robot from deformation due to reaction force.
[0017] Preferably, the buffer is disposed on the positioning plate, and the positioning plate is connected to the elastic member;
[0018] The positioning plate has two oppositely arranged hook grooves, and the distance between the openings of the two hook grooves is less than the width of the track surface.
[0019] The two grooves allow the buffer fixture to be pre-installed on the track. Since the distance between the openings of the two grooves is less than the width of the track surface, the buffer fixture cannot be detached from the track even when clamping member one and clamping member two are not clamped to the track. Furthermore, this structure allows the buffer fixture to slide on the track, thus allowing for the selection of a suitable position for positioning.
[0020] Preferably, the first clamping member is fixedly mounted on the fixed base, and the second clamping member is movably mounted on the fixed base via a quick-release clamp.
[0021] The quick-release clamp can quickly realize the action of the clamping component two, so as to quickly clamp and release the track, thereby meeting specific usage requirements.
[0022] Preferably, the quick-release clamp includes:
[0023] The base, which is connected to the fixed seat, and the second clamping member, which is hinged to the base; and
[0024] Link 1 and link 2, one end of link 1 is provided with a handle, the other end of link 1 is hinged to clamping member 2, one end of link 2 is hinged to the base, and the other end of link 2 is hinged to the middle of link 1;
[0025] The connecting rod and the base are in sliding engagement.
[0026] The structure is simple. The drive handle causes the first link to move accordingly. By utilizing the lever principle, the transmission of the second clamping component is achieved through the first link. When clamping the track, the first link and the base abut against each other to form a mechanical dead angle. Therefore, after the operator releases the handle, the clamping components one and two can maintain the clamping state of the track, thus enabling the buffer fixture to stably withstand the impact load brought by the inspection robot.
[0027] Preferably, the contact portion between the clamping member one and / or the clamping member two and the track is provided with a rubber component.
[0028] Rubber parts have a certain deformation capacity, so they can provide appropriate movement margin during the clamping process, thereby better realizing the assembly and operation of the buffer fixture; in addition, rubber parts can also prevent damage to the track when clamping it.
[0029] Preferably, the fixed base is provided with a handle.
[0030] The handle design allows staff to easily carry the cushioned workwear.
[0031] An inspection system includes:
[0032] The buffer fixture described above; and
[0033] An inspection robot that moves on a track.
[0034] Compared with existing technologies, this invention uses a porous rubber buffer to form the first level of buffering, achieving soft and hard contact during collisions and reducing the risk of damage to the inspection robot. Then, an elastic component with a reset element is used to achieve the second level of buffering to absorb larger impact loads. Thus, the two-level buffering better protects the inspection robot. This invention also features a quick-release clamp that locks the track from the side, ensuring stable and reliable installation. The quick-release clamp also ensures convenience during installation and disassembly. Attached Figure Description
[0035] Figure 1 This is a schematic diagram of the inspection system in an embodiment of this utility model;
[0036] Figure 2 This is a schematic diagram of the buffer fixture in one direction in an embodiment of this utility model;
[0037] Figure 3 This is a schematic diagram of the buffer fixture in one direction in an embodiment of this utility model;
[0038] Figure 4 This is a schematic diagram of the buffer fixture in one direction in an embodiment of this utility model;
[0039] Figure 5As an embodiment of this utility model Figure 1 Side view;
[0040] Figure 6 This is a schematic diagram of the drive mechanism for clamping member one and clamping member two in an embodiment of this utility model.
[0041] In the diagram: 100-Buffer fixture; 200-Inspection robot; 300-Railway; 301-Rail surface; 302-Support part; 303-Bottom surface; 1-Fixed seat; 2-Buffer component; 3-Clamping component one; 4-Clamping component two; 5-Reset component; 6-Guide rod; 7-Positioning plate; 8-Guide hole; 9-Hole; 10-Groove; 11-Base; 12-Linking rod one; 13-Linking rod two; 14-Handle; 15-Connector; 16-Connecting part one; 17-Connecting part two; 18-Connecting part three; 19-Connecting part four; 20-Screw; 21-Guide component; 22-Rubber part; 23-Handle. Detailed Implementation
[0042] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to specific embodiments.
[0043] like Figure 1 and Figure 5 As shown, this embodiment discloses an inspection system, which includes a buffer fixture 100 and an inspection robot 200. When using the inspection system, the buffer fixture 100 is fixed on a track 300, and the inspection robot 200 can move along the track 300, which is the inspection track 300. Typically, the buffer fixture 100 is located at the end of the track 300. The track 300 includes a track surface 301, a support portion 302, and a bottom surface 303. The bottom surface 303 is fixed at a suitable position on the ground, and the track surface 301 is supported above the ground by the support portion 302. The cross-section of the track 300 is basically I-shaped. Furthermore, in this embodiment, the force exerted by the buffer fixture 100 on the track 300 is located on the support portion 302, while the fixed seat 1 is placed on the track surface 301.
[0044] Therefore, this embodiment discloses a buffer fixture 100 placed on the track 300, such as... Figures 2-5As shown, the system includes a fixed base 1 and a buffer member 2. The fixed base 1 is provided with a clamping member 3 and a clamping member 4, at least one of which is movable relative to the other, to clamp or release the track 300. The buffer member 2 is connected to the fixed base 1 via an elastic member. The elastic member includes a reset member 5 and a guide rod 6, with the reset member 5 sleeved on the outside of the guide rod 6. In the fixed base 1 and the buffer member 2, the guide rod 6 is fixedly connected to one of them and slidably connected to the other. Further, the buffer member 2 is mounted on a positioning plate 7, which is connected to the elastic member.
[0045] The positioning plate 7 serves as the mounting base for the buffer 2. One end of the guide rod 6 is fixed to the positioning plate 7 with screws. The fixing seat 1 is provided with a guide hole 8, and the other end of the guide rod 6 is slidably engaged with the guide hole 8. Since the reset member 5 is sleeved on the guide rod 6, when the buffer 2 moves relative to the fixing seat 1, the deformation direction of the reset member 5 is along the extension direction of the guide rod 6, thereby ensuring that the reset member 5 exerts its maximum deformation capacity. In this embodiment, as a preferred technical solution, one end of the reset member 5 is connected to the positioning plate 7, and the other end of the reset member 5 is connected to the fixing seat 1. At this time, the relative position between the positioning plate 7 and the fixing seat 1 can be maintained when the reset member 5 is not deformed. In this embodiment, the elastic member has two sets symmetrically arranged. The two sets of corresponding reset members 5 and guide rods 6 cooperate with the positioning plate 7 so that when the buffer fixture 100 is subjected to an impact load, the reset member 5 is compressed, driving the guide rod 6 and the buffer 2 to move backward simultaneously, thereby absorbing most of the impact load.
[0046] In this embodiment, the buffer member 2 is made of rubber. Furthermore, the buffer member 2 has a porous structure; specifically, it has multiple symmetrically arranged holes 9, the axes of which are angled to the extension line of the track surface 301 of the track on which the buffer fixture 100 is placed. As a preferred embodiment, the axes of the holes 9 are perpendicular to the track surface 301. In this case, the buffer member 2 can better deform under impact load, thus achieving a better buffering effect. It should be noted that when the axis of the hole 9 is parallel to the extension direction of the rail surface 301, the actual compression degree of the buffer 2 is not high or cannot increase the deformation of the buffer 2 under stress. That is to say, when the buffer 2 is subjected to force, the volume change of the hole 9 is not significant. However, when the axis of the hole 9 is set at an angle to the extension line of the rail surface 301 of the track 300 on which the buffer fixture 100 is placed, the force on the buffer 2 can increase the deformation degree of the hole 9. At this time, the volume of the buffer 2 under force is smaller, thereby improving the force buffering efficiency and better meeting the buffering requirements. Furthermore, the side of the buffer 2 away from the fixed seat 1 is configured as a convergence structure. In this embodiment, the convergence structure is a V-shaped structure. Of course, in other embodiments, it can be an arc-shaped structure. This structure can increase the force-bearing area, thereby better realizing the first-level buffering. Thus, this embodiment also solves the problem of high maintenance costs caused by the collapse of the buffer 2 in the prior art.
[0047] like Figure 3 As shown, in this embodiment, the positioning plate 7 has two oppositely arranged hook grooves, and the distance between the openings of the two hook grooves is less than the width of the rail surface 301 of the track 300. The buffer fixture 100 is located at the end of the track 300, so the buffer fixture 100 can slide into the track 300 through the two grooves 10. At this time, the two sides of the rail surface 301 are located between the two grooves 10. After determining the position to be placed, the support part 302 can be clamped by clamping member 1 3 and clamping member 2 4.
[0048] like Figure 2 and Figure 5As shown, in this embodiment, the clamping member 3 is fixedly mounted on the fixed base 1, and the clamping member 4 is movably mounted on the fixed base 1 via a quick-release clamp. Specifically, the quick-release clamp includes a base 11, a connecting rod 12, and a connecting rod 13; the base 11 is connected to the fixed base 1, and the clamping member 4 is hinged to the base 11; one end of the connecting rod 12 is provided with a handle 14, and the other end of the connecting rod 12 is hinged to the clamping member 4; one end of the connecting rod 13 is hinged to the base 11, and the other end of the connecting rod 13 is hinged to the middle of the connecting rod 12; the connecting rod 12 and the base 11 are slidably engaged. The base 11 has an L-shaped connector 15, and the connecting rod 12 also has an L-shaped structure. The two hinge positions of the connecting member 15 are connecting part one 16 and connecting part two 17, and the two hinge positions of the connecting rod one 12 are connecting part three 18 and connecting part four 19, with connecting part four 19 located at the corner of connecting rod one 12. Furthermore, the clamping member two 4 is hinged to connecting part one 16 and connecting part three 18, and one end of the connecting rod two 13 is hinged to connecting part two 17, while the other end is hinged to connecting part four 19. In practical use, pressing the handle 14 causes the clamping member two 4 to swing relative to the base 11 through the above-described connection structure. During this process, the connecting member 15 remains relatively stationary. Therefore, during the sliding engagement of the connecting rod one 12 and the base 11 (connecting member 15), the contact area between the two gradually increases, forming a mechanical dead angle, so that after clamping the track 300, the clamped state is maintained. In different embodiments, the connecting rod one 12 and the base 11 can be a mutually cooperating groove-protrusion structure, or a mutually cooperating arc surface structure. Thus, this embodiment can solve the problems of difficult disassembly and assembly, and the need to carry special tools for disassembly and assembly. Furthermore, during installation, first place the buffer fixture 100 that has released the quick-release clamp onto the track 300, press the contact part of the clamping part 3 against the track 300, then move the fixture to the appropriate position on the track 300, and then press the handle 14 of the quick-release clamp to lock the buffer fixture 100 onto the track 300.
[0049] like Figure 6 As shown, in some other technical solutions of this embodiment, the clamping or loosening of the track 300 can be achieved by the synchronous action of clamping member 3 and clamping member 4. For example, a screw 20 with positive and negative threads and a guide member 21 extending along the screw 20 are provided, so that clamping member 3 is screwed with the positive thread and clamping member 4 is screwed with the negative thread. At the same time, clamping member 3 and clamping member 4 can reciprocate along a preset path under the guidance of guide member 21. Thus, the relative movement of clamping member 3 and clamping member 4 can be achieved by rotating screw 20. After clamping the track 300, the rotation mechanism of screw 20 is restricted by a limiting member, which can be a nut.
[0050] In this embodiment, the contact portions between the clamping member 3 and / or the clamping member 4 and the track 300 are provided with rubber parts 22. Specifically, the contact portions between the clamping member 3 and the clamping member 4 and the track 300 are both provided with rubber parts 22. Utilizing the deformation capability of the rubber parts 22, suitable movement margins can be provided during the clamping of the track 300, thereby better realizing the assembly and operation of the buffer fixture 100; furthermore, the rubber parts 22 can also prevent damage to the track 300 when clamping it.
[0051] To facilitate carrying the cushioning fixture 100, a handle 23 is provided on the fixed base 1. This structure is simple and easy to use, enabling workers to easily carry the cushioning fixture 100.
[0052] In this embodiment, in addition to the fixed seat 1 that ensures the stability and structural strength of the buffer fixture 100, the structural components such as clamping part 1 3, clamping part 2 4, quick-release clamp, handle 23, and guide rod 6 can all be made of aluminum alloy, thereby achieving lightweighting, reducing the overall weight, and greatly improving the convenience of disassembly and handling by the staff, thus solving the problem of the buffer fixture 100 being bulky and requiring a lot of manpower for handling.
[0053] Therefore, this embodiment is simple to install and adjust, with low manufacturing costs; it features a quick-release design for easy replacement and maintenance; and its lightweight design helps improve operational efficiency. Specifically, this embodiment utilizes a two-stage buffer to protect the inspection robot 200; and the quick-release clamp effectively improves the efficiency of later maintenance and early assembly / adjustment, while effectively reducing labor intensity. In other words, this embodiment can improve the ease of disassembly and assembly while meeting functional requirements.
[0054] The above are merely preferred embodiments of this utility model. It should be noted that the above preferred embodiments should not be considered as limitations on this utility model, and the scope of protection of this utility model should be determined by the scope defined in the claims. For those skilled in the art, several improvements and modifications can be made without departing from the spirit and scope of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.
Claims
1. A buffer tool for setting on a track, characterized in that, include: A fixed base is provided with a clamping member one and a clamping member two, at least one of the clamping member one and the clamping member two can move relative to the other, so that the clamping member one and the clamping member two clamp the track or release the track. A buffer element, wherein the buffer element is connected to a fixed base via an elastic member; The elastic member includes a reset member and a guide rod, with the reset member sleeved on the outside of the guide rod; in the fixed seat and the buffer member, the guide rod is fixedly connected to one of them and slidably connected to the other.
2. A cushioning tool for placement on a track as defined in claim 1, wherein, The buffer is made of rubber.
3. A cushioning tool for placement on a track as claimed in claim 2, wherein, The buffer component has multiple symmetrically arranged holes, the axis of which is set at an angle to the extension line of the track surface on which the buffer fixture is placed.
4. A buffer fixture placed on a track as described in claim 1, characterized in that, The side of the buffer away from the fixed base is configured as a convergent structure.
5. A buffer fixture placed on a track as described in claim 1, characterized in that, The buffer is mounted on the positioning plate, and the positioning plate is connected to the elastic member. The positioning plate has two oppositely arranged hook grooves, and the distance between the openings of the two hook grooves is less than the width of the track surface.
6. A buffer fixture placed on a track as described in claim 1, characterized in that, The first clamping member is fixedly mounted on the fixed base, and the second clamping member is movably mounted on the fixed base via a quick-release clamp.
7. A buffer fixture placed on a track as described in claim 6, characterized in that, The quick-release clamp includes: The base, which is connected to the fixed seat, and the second clamping member, which is hinged to the base; and Link 1 and link 2, one end of link 1 is provided with a handle, the other end of link 1 is hinged to clamping member 2, one end of link 2 is hinged to the base, and the other end of link 2 is hinged to the middle of link 1; The connecting rod and the base are in sliding engagement.
8. A buffer fixture placed on a track as described in claim 1, characterized in that, The contact portion between the clamping member one and / or clamping member two and the track is provided with a rubber component.
9. A buffer fixture placed on a track as described in claim 1, characterized in that, The mounting base is equipped with a handle.
10. An inspection system, characterized in that, include: The buffer fixture as described in any one of claims 1 to 9; as well as An inspection robot that moves on a track.