Track maintenance pit side wall top track plug joint device

Abstract

The utility model discloses a track maintenance pit side wall top track caulking device, including adjusting fixed assembly, adjusting fixed assembly includes positioning board, sleeve and polished rod, and positioning board is fixedly connected in the side wall gap through the expansion bolt, is provided with the sleeve on the positioning board, and the polished rod is slidably connected in the sleeve, be connected with first support plate or second support plate on the polished rod. Positioning board is directly connected with the inner wall of side wall gap through expansion bolt, can ensure that the stability of the connection of device whole and side wall, avoids the displacement of device because of vibration or load in long -term use, first baffle width and side wall gap width accurate matching, after installation, two ends and the inner wall of gap are closely attached, and are locked through bolt assembly and first support plate, ensure that the baffle and support plate are no gap and attach, can completely block dust, rain, oil dirt and other impurities and invade the gap, avoid the internal structure corrosion or damage of gap.

Description

Technical Field

[0001] This utility model relates to the field of construction tools technology, and in particular to a track sealing device for the top of the side wall of a track maintenance pit. Background Technology

[0002] Track maintenance pits are an indispensable and important component in the construction and maintenance of rail transit facilities such as high-speed railways and urban rail transit. These pits provide the necessary space for the inspection, maintenance, and replacement of track equipment. However, traditional methods have many drawbacks in treating track gaps at the top of the pit's sidewalls.

[0003] Firstly, while pouring concrete as a single unit can solve the gap problem to some extent, subsequent track maintenance often requires chiseling out the concrete for inspection and repair. This not only increases the workload but may also damage the track structure, affecting the track's safety and stability.

[0004] Secondly, while using materials such as rubber sheets to seal the gaps avoids the problem of excavating concrete, these materials are prone to aging and deformation, and are relatively expensive. Over the long term, not only are maintenance costs high, but the aging of the materials may also affect the sealing effect of the gaps, potentially damaging the track equipment.

[0005] In summary, traditional methods for treating track gaps on the top of the sidewalls of track maintenance pits have many shortcomings, necessitating a new, efficient, and economical solution. This utility model addresses this issue by providing a more scientific, rational, and economical track gap sealing device to meet the needs of rail transit facility construction and maintenance. Summary of the Invention

[0006] In order to overcome the shortcomings of the existing technology, this utility model provides a track sealing device on the top of the side wall of the track maintenance pit, which can quickly disassemble the gap baffle.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A track caulking device for the top of the side wall of a track maintenance pit includes an adjusting and fixing assembly. The adjusting and fixing assembly includes a positioning plate, a sleeve, and a guide rod. The positioning plate is fixedly connected to the gap in the side wall by expansion bolts. A sleeve is provided on the positioning plate, and a guide rod is slidably connected inside the sleeve. A caulking assembly is connected to the guide rod. The caulking assembly includes a first support plate and a first baffle detachably connected thereto. The guide rod is connected to the first support plate, and the first baffle is sleeved on the first support plate. A groove is provided at the contact end between the first baffle and the first support plate so that the first support plate can fit into the first baffle. The top of the first baffle is flush with the top of the gap in the side wall.

[0008] Furthermore, the optical rod is provided with several through holes, and the sleeve is provided with locking holes. The locking holes are connected to the corresponding through holes through a locking assembly.

[0009] Furthermore, the first support plate is provided with a number of threaded holes, and the first baffle is provided with a number of positioning holes. The number of threaded holes and positioning holes are the same, and their positions correspond one-to-one. The threaded holes and positioning holes are connected by bolts.

[0010] Furthermore, the caulking assembly includes a second support plate and a second baffle, with the second support plate connected to the optical rod and the second baffle sleeved on the second support plate.

[0011] Furthermore, a fixing part is provided on the second support plate, and locking parts are symmetrically provided at both ends of the second support plate. An optical axis is connected to the locking part, one end of the optical axis is connected to the locking part, and the other end is slidably connected to the fixing part. The locking part abuts against the second baffle.

[0012] Furthermore, the locking part abuts against the transmission part.

[0013] Furthermore, a positioning part is connected to the transmission part, and the positioning part is detachably connected to the fixing part.

[0014] Furthermore, a locking bolt is detachably connected to the fixing part, a positioning part is sleeved on the locking bolt, and a second baffle is located between the locking bolt and the positioning part.

[0015] Furthermore, a locking bolt is detachably connected to the fixing part, and a positioning part is sleeved on the locking bolt. The two ends of the second baffle are symmetrically provided with grooves that fit into the outer wall of the second support plate.

[0016] Compared with the prior art, the beneficial effects that this utility model can achieve are: 1. The positioning plate is directly connected to the inner wall of the side wall gap via expansion bolts, which ensures the stability of the connection between the device and the side wall and prevents the device from shifting due to vibration or load during long-term use; the width of the first baffle is precisely matched with the width of the side wall gap, and after installation, both ends are tightly fitted to the inner wall of the gap, and are locked to the first support plate by bolt assembly, ensuring that the baffle and the support plate fit together without gaps, which can completely block dust, rainwater, oil and other impurities from entering the gap and prevent the internal structure of the gap from rusting or being damaged.

[0017] 2. By setting up a linkage clamping structure, the locking part can be moved horizontally by tightening the locking bolt, forming a uniform clamping force on the second baffle. The clamping force can be flexibly adjusted by the tightening force of the bolt to adapt to second baffles of different thicknesses. This avoids the baffle deformation problem caused by uneven force in traditional bolt connections and extends the service life of the baffle. The locking part is slidably connected to the fixing part through an optical axis. The optical axis can limit the movement direction of the locking part and ensure that the locking part does not deviate during clamping. This ensures that the second baffle and the support plate always maintain precise alignment. Even in strong vibration conditions such as subway maintenance pits, it can prevent the baffle from loosening or falling off, improving the stability of the device.

[0018] 3. The second baffle is initially positioned by fitting into the outer wall of the second support plate through grooves at both ends, and then fixed by clamping with the locking part. At the same time, the top of the baffle is located between the head of the locking bolt and the positioning part, forming a triple fixing structure of "fitting + clamping + top limit". This can effectively prevent the baffle from accidentally falling off during maintenance and reduce the operational risks for workers. The locking bolt and the fixing part are connected by threads, so the bolt is not easy to loosen even in long-term vibration environment. Moreover, the positioning part, transmission part and locking part are all rigid structures with high force transmission efficiency, which can ensure that the baffle maintains a stable connection state for a long time and improve the overall safety performance of the device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present utility model; Figure 2 This is a schematic diagram of the structure of the side wall of the maintenance pit of this utility model; Figure 3 This is a schematic diagram showing the connection between the adjusting and fixing component and the first support plate of this utility model; Figure 4 This is a schematic diagram of the structure of the first support plate of this utility model; Figure 5 This is a schematic diagram of the structure of the second embodiment of the present utility model; Figure 6 This is a schematic diagram showing the connection between the second support plate and the locking bolt of this utility model; Figure 7 This is a schematic diagram showing the connection between the positioning part and the transmission part of this utility model; Figure 8 This is a schematic diagram of the structure of the second support plate of this utility model; Figure 9 This is a schematic diagram of the structure of the second baffle of this utility model.

[0020] The components are as follows: 1. Side wall of the inspection pit; 11. Track; 12. Side wall gap; 2. Positioning plate; 21. Sleeve; 22. Smooth rod; 23. First support plate; 24. Threaded hole; 25. Locking hole; 26. Through hole; 27. First baffle; 28. Positioning hole; 3. Second support plate; 31. Locking part; 32. Smooth shaft; 33. Fixing part; 4. Locking bolt; 41. Positioning part; 42. Transmission part; 5. Second baffle. Detailed Implementation

[0021] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this utility model. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0022] In order to solve the technical problems mentioned in the background art, this application provides two technical solutions that can quickly disassemble the filling of the side wall gap 12, maintain its connection firmness, and solve the problem of disassembling the filling position when maintenance is required.

[0023] Example 1 The sealing device provided in this embodiment includes an adjusting and fixing assembly for adapting to inspection pits of different specifications. The adjusting and fixing assembly consists of a positioning plate 2, a sleeve 21, and a smooth rod 22. The positioning plate 2 is as follows: Figure 2 As shown, it is detachably connected to the inside of the side wall gap 12. Specifically, expansion bolts are used to pass through the preset mounting holes of the positioning plate 2 and then connect and fix it to the inner wall of the side wall gap 12. This connection method can ensure the connection strength between the positioning plate 2 and the side wall gap 12, while reserving operating space for the overall adjustment or disassembly of the device in the later stage.

[0024] The top of the positioning plate 2 is fixedly connected to a sleeve 21 by welding, and the axis of the sleeve 21 is collinear with the axis of the positioning plate 2 to ensure that the force transmission direction is consistent when subjected to force, and to avoid local stress concentration that could lead to component deformation. A guide rod 22 is slidably connected inside the sleeve 21, and the axis of the guide rod 22 is collinear with the axis of the sleeve 21 to ensure that the guide rod 22 slides without offset or jamming within the sleeve 21. One or more through holes 26 are formed along the axial direction of the guide rod 22, and these through holes 26 are evenly spaced in an array with the axis of the guide rod 22 as a reference (the spacing between adjacent through holes 26 is 15-20mm to accommodate different depths of gaps). Correspondingly, a locking hole 25 is formed on the side wall of the sleeve 21. The guide rod 22 and the sleeve 21 are relatively fixed together by a locking assembly. Specifically, the locking hole 25 is aligned with the corresponding through hole 26 on the guide rod 22, and then the locking assembly is used to fix it in place.

[0025] The locking component can be either a pin or a bolt: When a pin is used as the locking component, one end of the pin passes through the locking hole 25 and the through hole 26 aligned with the locking hole 25 in sequence until the other end of the pin extends out of the through hole 26, thereby achieving quick locking between the sleeve 21 and the polished rod 22. In this method, disassembly only requires pulling out the pin; When a bolt is used as the locking component, the inner wall of the through hole 26 is provided with an internal thread, and the internal thread matches the external thread at the tail end of the bolt. By screwing the tail end of the bolt into the locking hole 25 and the through hole 26 in sequence until the bolt head fits against the outer wall of the sleeve 21, the connection stability between the sleeve 21 and the polished rod 22 can be enhanced, making it suitable for maintenance conditions with slight vibration.

[0026] The top of the smooth rod 22 is provided with a caulking assembly for filling the gaps in the maintenance pit. The caulking assembly includes a first support plate 23 and a first baffle 27. The smooth rod 22 is fixed to the first support plate 23 by welding to ensure that the connection strength meets the load-bearing requirements of the baffle. The height of the first support plate 23 is determined by the depth of the side wall gap 12. By changing the relative sliding distance between the sleeve 21 and the smooth rod 22, the height of the first support plate 23 can be adjusted synchronously to adapt to side wall gaps 12 of different depths.

[0027] The first support plate 23 has one or more threaded holes 24 along its length. A first baffle 27 for directly filling the side wall gap 12 is sleeved on the first support plate 23. The width of the first baffle 27 is the same as the width of the side wall gap 12, ensuring that the two ends of the first baffle 27 can fit tightly against the inner wall of the side wall gap 12 after installation, avoiding gap residue. One or more positioning holes 28 are opened on the first baffle 27 at the position corresponding to the threaded holes 24. The number of threaded holes 24 and positioning holes 28 are the same and their positions correspond one-to-one. The first baffle 27 and the first support plate 23 are connected by a bolt assembly. Through the threaded engagement of the bolt tail with the threaded hole 24, it can be ensured that the first baffle 27 and the first support plate 23 always keep tightly fitted without gap residue.

[0028] The method of using the device in this embodiment is as follows: First, measure the depth and width of the sidewall gap 12 on the sidewall of the maintenance pit 1, and select a suitable first baffle 27 according to the width; then, place the positioning plate 2 into the sidewall gap 12, and fix the positioning plate 2 to the inner wall of the sidewall gap 12 with expansion bolts. At the same time, pull the guide rod 22 to adjust the height of the first support plate 23, so that there is a pre-reserved gap between the top of the first support plate 23 and the bottom of the top track 11 of the sidewall of the maintenance pit 1. This gap is equal to the thickness of the first baffle 27 (ensuring that the top of the first baffle 27 can be on the same horizontal plane as the bottom of the track 11 after installation, without any protrusions or depressions); next, align the locking hole 25 on the sleeve 21 with the corresponding through hole 26 on the guide rod 22, and use the locking assembly. The locking sleeve 21 and the guide rod 22 are used to fix the height of the first support plate 23. Then, the first baffle 27 is sleeved on the first support plate 23, so that the two ends of the first baffle 27 abut against the inner walls of the two ends of the side wall gap 12. Then, the bolt assembly is passed through the positioning hole 28 and screwed into the threaded hole 24 to lock the first baffle 27 and the first support plate 23, thus completing the filling of the side wall gap 12. When it is necessary to maintain the side wall gap 12 (such as cleaning the water in the gap or inspecting the inner wall structure), the first baffle 27 can be removed from the first support plate 23 simply by unscrewing the bolt assembly. There is no need to damage the side wall structure or the device body. After maintenance, the first baffle 27 can be reinstalled.

[0029] Example 2 This embodiment is an improvement upon Embodiment 1, aiming to further enhance the connection stability between the baffle and the support plate, while simplifying the disassembly operation. The specific improvements are as follows: The sealing assembly described in Embodiment 1 includes a second support plate 3 and a second baffle 5. The top end of the smooth rod 22 is fixedly connected to the second support plate 3 by welding. The structure of the second support plate 3 is as follows: Figure 6As shown, locking parts 31 are symmetrically arranged at both ends. The locking parts 31 are rectangular steel plate structures that can move in the horizontal direction. The middle part of the second support plate 3 is integrally formed with a fixing part 33. The axis of the fixing part 33 is collinear with the axis of the light rod 22. The center of the fixing part 33 is hollowed out, and the inner wall of the hollowed-out part is provided with internal threads.

[0030] The fixing part 33 is symmetrically provided with an optical axis 32 along its radial direction. The two ends of the fixing part 33 are symmetrically provided with sliding holes to facilitate the insertion of the optical axis 32. The axis of the sliding hole is collinear with the axis of the optical axis 32. One end of the optical axis 32 is fixed to the inner side wall of the locking part 31 by welding. The other end passes through the sliding hole preset in the side wall of the fixing part 33 and extends into the interior of the fixing part 33. The optical axis 32 and the sliding hole are slidably connected to ensure that the locking part 31 can move horizontally along the axial direction of the optical axis 32 (i.e., the direction perpendicular to the axis of the fixing part 33) to avoid the locking part 31 from deviating when it moves.

[0031] The fixing part 33 is connected to a locking bolt 4 by an internal thread. The screw part of the locking bolt 4 is sleeved with a positioning part 41. The positioning part 41 has a disc-shaped structure and its outer diameter is smaller than the inner diameter of the fixing part 33, ensuring that the positioning part 41 can move up and down inside the fixing part 33. The two ends of the positioning part 41 are symmetrically provided with transmission parts 42. The transmission parts 42 have a wedge-shaped block structure and their inclined surfaces abut against the inner sidewall of the locking part 31. The transmission parts 42 and the positioning parts 41 are integrally formed to ensure the efficiency of force transmission. The positioning part 41 is located between the head of the locking bolt 4 and the top of the fixing part 33. When the locking bolt 4 is tightened clockwise, the locking bolt 4 moves into the fixing part 33, and its head presses down on the positioning part 41, causing the positioning part 41 to move downward along the axis of the fixing part 33. The downward-moving positioning part 41 will drive the transmission parts 42 at both ends to move downward synchronously. Through the squeezing action between the inclined surface of the transmission part 42 and the inner wall of the locking part 31, the locking part 31 can be pushed to move horizontally away from the fixing part 33 along the axial direction of the optical axis 32.

[0032] A second baffle 5 for filling the side wall gap 12 is sleeved on the second support plate 3. The structure of the second baffle 5 is as follows: Figure 9As shown, grooves are symmetrically provided on both ends of the second baffle 5 that contact the second support plate 3. The grooves start along the height direction of the second baffle 5, allowing both ends of the second baffle 5 to fit into both ends of the second support plate 3 respectively. The width of the groove is consistent with the sidewall thickness of the second support plate 3, and the depth of the groove matches the travel of the locking part 31, ensuring that when the second baffle 5 is sleeved on the second support plate 3, the groove can fit tightly into the outer wall of the second support plate 3, achieving the initial positioning of the second baffle 5; the second baffle 5 is located between the locking part 31 and the second support plate. When the locking part 31 moves horizontally outward under the pressure of the transmission part 42, it can generate a clamping force on the inner wall of the second baffle 5, thereby firmly fixing the second baffle 5 between the locking part 31 and the second support plate 3. At the same time, the top of the second baffle 5 is located between the head of the locking bolt 4 and the positioning part 41. Without removing the locking bolt 4, the positioning part 41 can limit the top of the second baffle 5, ensuring that the second baffle 5 is always connected to the second support plate 3, and preventing the second baffle 5 from falling off due to vibration during maintenance. The clamping force of the locking part 31 on the second baffle 5 can be flexibly adjusted by tightening the locking bolt 4 to adapt to second baffles 5 of different thicknesses (2-5mm). The clamping and fixing method can avoid the baffle deformation problem caused by bolt connection and extend the service life of the baffle. The top of the second baffle 5 is limited by the positioning part 41 and the head of the locking bolt 4, which can effectively prevent the baffle from falling off even under strong vibration conditions (such as subway maintenance pits), and improve the safety of the device.

[0033] The method of using the device in this embodiment is the same as in embodiment 1, except that the installation and removal steps of the second baffle 5 are different: During installation, the second baffle 5 is fitted onto the second support plate 3 through the grooves at both ends. Then, the locking bolt 4 is tightened clockwise. The locking bolt 4 presses down on the positioning part 41, which drives the transmission part 42 to squeeze the locking part 31, so that the locking part 31 clamps the second baffle 5 and completes the fixation. During disassembly, the locking bolt 4 is loosened counterclockwise. The downward pressure on the positioning part 41 disappears, and the clamping force of the locking part 31 on the second baffle 5 is released by its own weight, so the second baffle 5 can be directly removed.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A track caulking device for the top of the sidewall of a track maintenance pit, characterized in that: The system includes an adjustment and fixing assembly, which includes a positioning plate (2), a sleeve (21), and a smooth rod (22). The positioning plate (2) is fixedly connected to the side wall gap (12) by expansion bolts. The sleeve (21) is provided on the positioning plate (2), and the smooth rod (22) is slidably connected inside the sleeve (21). A caulking assembly is connected to the smooth rod (22). The caulking assembly includes a first support plate (23) and a first baffle (27) detachably connected thereto. The first support plate (23) is connected to the smooth rod (22), and the first baffle (27) is sleeved on the first support plate (23). The contact end of the first baffle (27) and the first support plate (23) is provided with a groove so that the first support plate (23) can fit into the first baffle (27). The top of the first baffle (27) is flush with the top of the side wall gap (12).

2. The track sealing device at the top of the sidewall of the track maintenance pit according to claim 1, characterized in that: The light rod (22) is provided with a number of through holes (26), and the sleeve (21) is provided with a locking hole (25). The locking hole (25) and the corresponding through hole (26) are connected by a locking component.

3. The track sealing device at the top of the sidewall of the track maintenance pit according to claim 2, characterized in that: The first support plate (23) is provided with a number of threaded holes (24), and the first baffle (27) is provided with a number of positioning holes (28). The number of threaded holes (24) and positioning holes (28) are the same, and their positions correspond one to one. The threaded holes (24) and positioning holes (28) are connected by bolts.

4. The track sealing device at the top of the sidewall of the track maintenance pit according to claim 1, characterized in that: The sealing assembly includes a second support plate (3) and a second baffle (5). The second support plate (3) is connected to the light rod (22), and the second baffle (5) is sleeved on the second support plate (3).

5. The track sealing device at the top of the sidewall of the track maintenance pit according to claim 4, characterized in that: The second support plate (3) is provided with a fixing part (33), and the two ends of the second support plate (3) are symmetrically provided with locking parts (31). The locking part (31) is connected with an optical axis (32). One end of the optical axis (32) is fixedly connected to the locking part (31), and the other end is slidably connected to the fixing part (33). The locking part (31) abuts against the second baffle (5).

6. The track sealing device at the top of the sidewall of the track maintenance pit according to claim 5, characterized in that: The locking part (31) abuts against the transmission part (42).

7. The track sealing device at the top of the sidewall of the track maintenance pit according to claim 6, characterized in that: The transmission part (42) is connected to the positioning part (41), and the positioning part (41) is detachably connected to the fixing part (33).

8. The track sealing device at the top of the sidewall of the track maintenance pit according to claim 7, characterized in that: A locking bolt (4) is detachably connected to the fixing part (33), and a positioning part (41) is sleeved on the locking bolt (4). The second baffle (5) is located between the locking bolt (4) and the positioning part (41).

9. The track sealing device at the top of the sidewall of the track maintenance pit according to any one of claims 4-8, characterized in that: The two ends of the second baffle (5) are symmetrically provided with grooves that fit into the outer wall of the second support plate (3).

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