A signal post sealing device

By using the plug cap and drive mechanism of the signal post sealing device, the problem of inconvenient sealing of the top opening of the railway high-mast signal post is solved, achieving efficient sealing and convenient maintenance, and ensuring the normal operation of the signal equipment.

CN224300190UActive Publication Date: 2026-05-29CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP CO LTD
Filing Date
2025-04-17
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

The sealing of the top opening of the railway high-mast signal post is inconvenient to construct, has poor sealing performance, and is prone to leakage, which affects the normal operation of the signal equipment.

Method used

A signal post sealing device is provided, including a plug cap, a plunger body, a telescopic buckle, and a drive mechanism. The drive mechanism drives the telescopic buckle to extend and fit against the inner wall of the signal post to achieve sealing, and the plug cap and flexible gasket are used to improve the sealing performance.

Benefits of technology

It simplifies the sealing process, prevents water leakage, improves the sealing and stability of signal equipment, facilitates maintenance and identification, and ensures the normal operation of signal equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to signal equipment tool technical field, specifically provides a signal machine column sealing device, including the cap, plunger body, telescopic buckle and drive mechanism, the plunger body is connected in cap below, telescopic buckle is installed in the plunger body inside, the plunger body lateral wall is equipped with the buckle hole matched with telescopic buckle, drive mechanism is used for driving telescopic buckle and is stretched out the buckle hole or shrink to the plunger body inside. The signal machine column sealing device provided by the utility model seals the high column signal machine concrete machine column top by plunger body and cap, no longer adopts the concrete, simplifies the plugging construction, effectively prevents the influence signal equipment normal work because of plugging leakage. The plunger body lateral wall is equipped with controllable telescopic buckle, can be with the machine column inner wall and is pasted, prevents the device from falling through stress mode, and the signal machine maintenance is convenient when dismantling.
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Description

Technical Field

[0001] This utility model belongs to the technical field of signal equipment and tools, specifically relating to a signal machine post sealing device. Background Technology

[0002] Currently, railway high-mast signals use hollow concrete pylons, which are prefabricated in factories. Signal cables run through the pylon, and after installation, the top of the pylon is sealed tightly with concrete. Due to the high position of the pylon top, sealing the top with concrete presents certain challenges. Directly sealing with concrete can cause concrete to flow down, and inconsistent construction standards may lead to concrete cracking and leakage, affecting the normal operation of the railway signaling equipment. Utility Model Content

[0003] The purpose of this invention is to overcome the problems of inconvenient construction, poor sealing, and easy leakage at the top of the high-mast signal tower in the existing technology.

[0004] Therefore, this utility model provides a signal post sealing device, including a plug cap, a plunger body, a telescopic buckle, and a driving mechanism; the plunger body is connected below the plug cap; the telescopic buckle is movably installed in the plunger body; the side wall of the plunger body has a buckle hole that matches the telescopic buckle; the driving mechanism is used to drive the telescopic buckle to extend out of the buckle hole or retract into the plunger body.

[0005] Specifically, the aforementioned driving mechanism includes a vertical connecting rod, an elastic pressure block, a movable connecting rod, and a locking assembly; a support platform is provided inside the plunger body; the telescopic buckle and the elastic pressure block are both disposed on the support platform; one end of the vertical connecting rod passes through the plug cap and abuts against the elastic pressure block; one end of the movable connecting rod is hinged to the elastic pressure block, and the other end is hinged to the telescopic buckle; the locking assembly is used to fix the relative position of the vertical connecting rod and the elastic pressure block.

[0006] Specifically, the locking assembly includes a nut; the nut is fixed inside the plunger body; the vertical connecting rod is provided with a thread that matches the nut; one end of the vertical connecting rod passes through the nut and abuts against the elastic pressure block.

[0007] Specifically, the aforementioned drive mechanism also includes a switch knob; the switch knob is sleeved on the end of the vertical connecting rod away from the elastic pressure block.

[0008] Specifically, the aforementioned support platform is provided with a buckle guide groove; one end of the buckle guide groove is connected to the buckle hole; the telescopic buckle is slidably connected in the buckle guide groove.

[0009] Specifically, the aforementioned plug cap includes a sleeve and a sleeve seal disposed at one end of the sleeve; one end of the plunger body passes through the sleeve and is connected to the sleeve seal.

[0010] Specifically, the top of the aforementioned cap is equipped with a first reflective ring.

[0011] Specifically, the bottom of the aforementioned cap is equipped with a second reflective ring.

[0012] Specifically, the bottom of the aforementioned plug is equipped with a flexible gasket.

[0013] Specifically, the aforementioned signal post sealing device includes multiple telescopic buckles; the multiple telescopic buckles are arranged at intervals along the circumference of the plunger body.

[0014] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0015] This utility model provides a signal post sealing device that seals the top opening of a high-mast signal post using a plunger body and a cap, eliminating the need for concrete and simplifying the sealing process. This effectively prevents leakage from affecting the normal operation of the signal equipment. The plunger body has a controllable telescopic buckle on its side wall, allowing it to fit snugly against the inner wall of the post. Stress is used to prevent the device from falling off, and it facilitates disassembly during signal maintenance. Furthermore, the cap has reflective rings at the top and bottom for easy inspection and identification by maintenance personnel; a flexible gasket ensures a tight seal with the top of the post.

[0016] The present invention will be further described in detail below with reference to the accompanying drawings. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the signal post sealing device provided by this utility model.

[0018] Figure 2 This is a schematic diagram of the signal post sealing device provided by this utility model from another perspective.

[0019] Figure 3 This is a schematic diagram of the telescopic buckle and drive mechanism structure of the signal post sealing device provided by this utility model.

[0020] Figure 4 This is a schematic diagram of the installation status of the signal post sealing device provided by this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Plug cap; 101. Sleeve seal; 102. Sleeve; 2. Plunger body; 3. Telescopic buckle; 4. Switch knob; 5. Vertical connecting rod; 6. Nut; 7. Elastic pressure block; 8. Movable connecting rod; 9. Support platform; 10. Buckle guide groove; 11. First reflector ring; 12. Second reflector ring; 13. Flexible washer; 14. Signal post. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0023] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying 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.

[0024] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0025] Reference Figure 1-2 This utility model provides a signal post sealing device, including a plug cap 1, a plunger body 2, a telescopic buckle 3, and a driving mechanism; the plunger body 2 is connected below the plug cap 1; the telescopic buckle 3 is movably installed inside the plunger body 2; the side wall of the plunger body 2 has a buckle hole that matches the telescopic buckle 3; the driving mechanism is used to drive the telescopic buckle 3 to extend out of the buckle hole or retract into the plunger body 2. In the initial state, the telescopic buckle 3 is located inside the plunger body 2, as shown in the reference. Figure 4The sealing device is installed at the top opening of the concrete column of the high-mast signal. The plunger body 2 is inserted into the column, and the plug cap 1 is located outside the column, tightly sealing the top opening of the concrete column. Through a drive mechanism, the telescopic buckle 3 extends through the buckle hole to the outside of the plunger body 2, fitting snugly against the inner wall of the column. This prevents the device from falling off through stress and facilitates disassembly during signal maintenance. The plug cap 1 and plunger body 2 can be made of rust-resistant metal or SMC composite materials. The outer diameter of the plug cap 1 is larger than the diameter of the signal column 14, and the plunger body 2 matches the inner diameter of the column top opening, ensuring that after the plunger body 2 is inserted into the column through the top opening, the plug cap 1 is located outside the column, preventing the entire device from falling into the column. Preferably, the mass of the plunger body 2 is greater than the sum of the mass of all components, including the plug cap 1, so that its own weight can be used for fixation during installation, preventing the device from falling off due to external conditions such as wind.

[0026] Furthermore, such as Figure 3 As shown, the driving mechanism includes a vertical connecting rod 5, an elastic pressure block 7, a movable connecting rod 8, and a locking assembly; a support platform 9 is provided inside the plunger body 2; the telescopic buckle 3 and the elastic pressure block 7 are both mounted on the support platform 9; one end of the vertical connecting rod 5 passes through the plug cap 1 and abuts against the elastic pressure block 7; one end of the movable connecting rod 8 is hinged to the elastic pressure block 7, and the other end is hinged to the telescopic buckle 3; the locking assembly is used to fix the relative position of the vertical connecting rod 5 and the elastic pressure block 7. The height of the support platform 9 is determined according to the height of the buckle hole. In use, pressing down the vertical connecting rod 5 compresses the elastic pressure block 7 due to the vertical limitation of the support platform 9, changing the angle between the movable connecting rod 8, the elastic pressure block 7, and the telescopic buckle 3, thereby causing the telescopic buckle 3 to move horizontally, extending out of the buckle hole and engaging with the inner wall of the signal post. The locking assembly fixes the vertical connecting rod 5 in its current position, and the telescopic buckle 3 is always outside the plunger body 2, fitting against the inner wall of the signal post. When disassembly and maintenance are required, release the locking assembly from limiting the vertical connecting rod 5, lift the vertical connecting rod 5, the elastic pressure block 7 rebounds, and the movable connecting rod 8 pulls the telescopic buckle 3 back into the plunger body 2 for easy disassembly. The elastic pressure block 7 can be made of high-strength and highly elastic materials such as spring steel or special synthetic rubber to ensure efficient force transmission and wear resistance.

[0027] Specifically, the locking assembly includes a nut 6; the nut 6 is fixed inside the plunger body 2; the vertical connecting rod 5 has a thread that matches the nut 6; one end of the vertical connecting rod 5 passes through the nut 6 and abuts against the elastic pressure block 7. Through the threaded connection, turning the vertical connecting rod 5 adjusts its relative position to the elastic pressure block 7, thereby adjusting the telescopic buckle 3. The vertical connecting rod 5 and the nut 6 employ high-strength metal pins or precision threaded connection technology to ensure direct operational response and long-term stability.

[0028] Optional, such as Figure 3As shown, the outer wall of the nut 6 is fixed to the inner wall of the plunger body 2 by multiple fixing rods.

[0029] Preferably, the drive mechanism further includes a switch knob 4; the switch knob 4 is sleeved on the end of the vertical connecting rod 5 away from the elastic pressure block 7, and the switch knob 4 is located outside the plug cap 1. During installation or disassembly, the switch knob 4 allows for intuitive operation by the user.

[0030] To prevent the telescopic buckle 3 from deviating horizontally during the driving process and failing to align with the buckle hole, the support platform 9 is provided with a buckle guide groove 10; one end of the buckle guide groove 10 is connected to the buckle hole; the telescopic buckle 3 is slidably connected within the buckle guide groove 10. The movable connecting rod 8 drives the telescopic buckle 3 to move towards or away from the buckle hole within the buckle guide groove 10.

[0031] In a detailed embodiment, the plug cap 1 includes a sleeve 102 and a sleeve seal 101 disposed at one end of the sleeve 102; one end of the plunger body 2 passes through the sleeve 102 and is connected to the sleeve seal 101. The inner diameter of the sleeve 102 matches the outer diameter of the signal post 14. During installation, the sleeve 102 encloses the top of the post to improve the sealing effect and prevent rainwater from entering. Preferably, the sleeve seal 101 has a frustum structure, and the sleeve 102 has a cylindrical structure. The bottom of the frustum is connected to one end of the cylinder for sealing. The diameter of the bottom of the frustum is larger than the diameter of the cylinder, and the inclined side of the frustum can prevent water accumulation.

[0032] Furthermore, the cap 1 is equipped with a first reflective ring 11 on its top, which can also be set with an identification mark. It can be sensed by a dedicated drone and automatically identified by the identification mark, that is, it can be inspected by a drone.

[0033] Furthermore, a second reflective ring 12 is provided at the bottom of the plug cap 1. The second reflective ring 12 is located on the bottom surface of the plug cap 1 that does not contact the signal post 14, making it convenient for maintenance personnel to conduct inspections on-site by means of a light source.

[0034] To improve the sealing effect of the sealing device, a flexible gasket 13 is provided at the bottom of the plug cap 1. It can be made of flexible materials such as rubber. The flexible gasket 13 surrounds the bottom surface of the plug cap 1 and the outer wall of the plunger body 2, that is, the flexible gasket 13 is provided on both the contact surface of the sealing device and the signal column, so that the sealing device and the top of the concrete column are further sealed.

[0035] To improve installation stability, the signal post sealing device includes multiple telescopic buckles 3; the multiple telescopic buckles 3 are arranged at intervals along the circumference of the plunger body 2.

[0036] Example 1:

[0037] This embodiment provides a signal post sealing device, including a plug cap 1, a cylindrical plunger body 2, a drive mechanism, and multiple telescopic buckles 3.

[0038] The plug cap 1 includes a frustum and a cylinder; the inner diameter of the cylinder matches the outer diameter of the signal post 14; the bottom diameter of the frustum is larger than the outer diameter of the cylinder, and one end of the cylinder is connected to the bottom of the frustum; the plunger body 2 is a hollow structure, and its outer diameter matches the inner diameter of the signal post 14; one end of the plunger body 2 passes through the cylinder and is fixed to the bottom of the frustum; a flexible washer 13 is provided in the area between the cylinder and the plunger body 2 at the bottom of the frustum; the flexible washer 13 is fitted onto the part of the plunger body 2 inside the cylinder; an installation hole is provided at the top of the frustum to connect to the inside of the plunger body 2; a first reflective ring 11 and an identification mark are provided on the upper surface of the frustum; a second reflective ring 12 is provided on the lower surface of the frustum, and the second reflective ring 12 is arranged around the periphery of the cylinder.

[0039] The plunger body 2 has multiple buckle holes along its circumferential direction on its side wall; a support platform 9 is provided inside the plunger body 2; the support platform 9 has multiple buckle guide grooves 10 that correspond one-to-one with the buckle holes; one end of the buckle guide groove 10 is connected to the buckle hole; multiple telescopic buckles 3 are slidably installed in the buckle guide groove 10 one-to-one.

[0040] The drive mechanism includes a vertical connecting rod 5, an elastic pressure block 7, a movable connecting rod 8, a nut 6, and a switch knob 4; the bottom of the elastic pressure block 7 is mounted on the support platform 9; the outer wall of the nut 6 is fixed to the inner wall of the plunger body 2 by a fixing rod; the vertical connecting rod 5 is provided with a thread that matches the nut 6; one end of the vertical connecting rod 5 is sleeved with the switch knob 4, and the other end extends into the plunger body 2 through the mounting hole at the top of the truncated cone, and passes through the nut 6 to abut against the top of the elastic pressure block 7; the switch knob 4 is located outside the truncated cone; one end of the movable connecting rod 8 is hinged to the side wall of the elastic pressure block 7, and the other end is hinged to the telescopic buckle 3.

[0041] In use, the sealing device is installed at the top opening of the concrete column of the high-mast signal post. The plunger body 2 is inserted into the column, and the cylindrical cap 1 encloses the top of the column, tightly sealing the top opening. Turning the switch knob 4 causes the vertical connecting rod 5 to move smoothly downwards, compressing the elastic block 7. The angle between the movable connecting rod 8, the elastic block 7, and the telescopic buckle 3 changes, causing the telescopic buckle 3 to move within the buckle guide groove 10 until it extends out of its buckle hole and engages with the inner wall of the signal post, completing the sealing of the column. For signal post maintenance, turn the switch knob 4 in the opposite direction to retract the telescopic buckle 3 into the plunger body 2 and remove the sealing device.

[0042] The above examples are merely illustrative of this utility model and do not constitute a limitation on the scope of protection of this utility model. All designs that are the same as or similar to this utility model are within the scope of protection of this utility model.

Claims

1. A signal post sealing device, characterized in that: It includes a plug cap (1), a plunger body (2), a telescopic buckle (3), and a driving mechanism; the plunger body (2) is connected below the plug cap (1); the telescopic buckle (3) is movably installed inside the plunger body (2); the side wall of the plunger body (2) is provided with a buckle hole that matches the telescopic buckle (3); the driving mechanism is used to drive the telescopic buckle (3) to extend out of the buckle hole or retract into the plunger body (2).

2. The signal post sealing device as described in claim 1, characterized in that: The driving mechanism includes a vertical connecting rod (5), an elastic pressure block (7), a movable connecting rod (8), and a locking assembly; a support platform (9) is provided inside the plunger body (2); the telescopic buckle (3) and the elastic pressure block (7) are both set on the support platform (9); one end of the vertical connecting rod (5) passes through the plug cap (1) and abuts against the elastic pressure block (7); one end of the movable connecting rod (8) is hinged to the elastic pressure block (7), and the other end is hinged to the telescopic buckle (3); the locking assembly is used to fix the relative position of the vertical connecting rod (5) and the elastic pressure block (7).

3. The signal post sealing device as described in claim 2, characterized in that: The locking assembly includes a nut (6); the nut (6) is fixed inside the plunger body (2); the vertical connecting rod (5) is provided with a thread that matches the nut (6); one end of the vertical connecting rod (5) passes through the nut (6) and abuts against the elastic pressure block (7).

4. The signal post sealing device as described in claim 3, characterized in that: The drive mechanism also includes a switch knob (4); the switch knob (4) is sleeved on the end of the vertical connecting rod (5) away from the elastic pressure block (7).

5. The signal post sealing device as described in claim 2, characterized in that: The support platform (9) is provided with a buckle guide groove (10); one end of the buckle guide groove (10) is connected to the buckle hole; the telescopic buckle (3) is slidably connected in the buckle guide groove (10).

6. The signal post sealing device as described in claim 1, characterized in that: The plug cap (1) includes a sleeve (102) and a sleeve seal (101) disposed at one end of the sleeve (102); one end of the plunger body (2) passes through the sleeve (102) and is connected to the sleeve seal (101).

7. The signal post sealing device as described in claim 1, characterized in that: The cap (1) is provided with a first reflective ring (11) on its top.

8. The signal post sealing device as described in claim 1, characterized in that: The bottom of the cap (1) is provided with a second reflective ring (12).

9. The signal post sealing device as described in claim 1, characterized in that: The bottom of the plug (1) is provided with a flexible washer (13).

10. The signal post sealing device as described in claim 1, characterized in that: It includes multiple telescopic buckles (3); the multiple telescopic buckles (3) are arranged circumferentially along the plunger body (2).