Anti-collapse mechanism for municipal water supply and drainage pipeline

Abstract

The utility model discloses an anti-collapse mechanism for municipal water supply and drainage pipelines, which belongs to the technical field of pipeline construction protection and comprises a central shaft, a plurality of support rods and one-way limit parts arranged on the support rods, the central shaft penetrates through all the support rods, two ends of the central shaft are provided with retaining sheets, and all the support rods are positioned between the two retaining sheets and are close to each other; the multiple supporting rods are alternately and reversely arranged, so that any two adjacent supporting rods form a herringbone structure with an adjustable included angle, a bearing surface for passing and rolling of vehicles is formed above the herringbone structure, and a supporting area for passing of a pipeline is formed below the herringbone structure. According to the anti-collapse mechanism for the municipal water supply and drainage pipeline, the center shaft penetrates through the multiple supporting rods which are arranged in a staggered mode, so that any two adjacent supporting rods form a herringbone structure with an adjustable included angle, a supporting area formed below the herringbone structure can be matched with pipelines with different pipe diameters, and therefore the use requirements in various complex environments are met.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline construction protection, and in particular relates to a pressure-collapse prevention mechanism for municipal water supply and drainage pipelines. Background Art

[0002] Urban roads frequently undergo renovation and upgrades, including road repairs, widening, and urban expansion projects. These projects often require the re-laying or rerouting of underground pipelines. Drainage construction is a crucial component of such projects, and temporary water supply and drainage pipelines are often installed on urban roads to ensure smooth drainage during construction. However, these temporary pipelines are inevitably damaged by passing vehicles, making effective protection of the exposed sections of the pipelines on the road particularly important.

[0003] Patent CN220453089U discloses a water supply and drainage pipe anti-collapse mechanism. In this technical solution, in order to meet the needs of different pipes, the control chamber accommodating the pipe needs to be designed according to the size of the largest specification pipe. Therefore, the size of the entire protective device will also be large. Since the protective device is a temporary facility, it needs to be dismantled after the construction is completed. The large volume is not convenient for dismantling after the construction is completed and for storage when idle. In addition, due to the large size of the device, when it is installed on urban roads, it often forms a large slope or height difference on the road surface, which poses a potential threat to the driving safety of passing vehicles and affects the normal driving of vehicles.

[0004] To this end, we propose a municipal water supply and drainage pipeline anti-collapse mechanism to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the problems in the prior art that temporary protection devices for pipelines are large in size and cannot be disassembled and stored, and affect the normal driving of vehicles, and to propose a municipal water supply and drainage pipeline anti-collapse mechanism.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A municipal water supply and drainage pipeline anti-collapse mechanism comprises a central axis, a plurality of support rods, and one-way limiters disposed on the support rods, wherein: the central axis passes through all the support rods, and baffles are disposed at both ends of the central axis, and all the support rods are located between the two baffles and are close to each other; the plurality of support rods are alternately and reversely disposed so that any two adjacent support rods form a herringbone structure with an adjustable angle, the upper portion of the herringbone structure forms a bearing surface for vehicles to pass through, and the lower portion of the herringbone structure forms a support area for the pipeline to pass through;

[0008] The one-way limiting members on two adjacent support rods cooperate with each other to limit the herringbone structure from rotating outward from the supporting area.

[0009] Preferably, the support rod includes a rod body, a mounting ring is provided at the rotating end of the rod body, and an anti-sliding block is rotatably mounted at the supporting end of the rod body.

[0010] Preferably, the outer surface of the rod body is provided with friction lines, and the rod body is provided with reinforcing ribs of a honeycomb structure.

[0011] Preferably, the one-way limit member includes two limit columns symmetrically and coaxially slidably arranged at both ends of the mounting ring, the limit columns are rotatably connected to the center axis, and a contact disk is provided at one end of the limit column close to the outer side of the mounting ring, and a plurality of limit teeth are distributed in a circular array on the contact disk, and a spring is provided between the two limit columns to make the limit teeth on the two contact disks in adjacent positions staggered and engaged.

[0012] Preferably, the cross section of the limiting column is non-circular.

[0013] Preferably, the limiting tooth has a positive bevel angle and a negative bevel angle, wherein the positive bevel angle is inclined from an end close to the contact disk to an end away from the contact disk, and the negative bevel angle is inclined from an end away from the contact disk to an end close to the contact disk.

[0014] Preferably, the end of the mounting ring is provided with a buffer groove adapted to the contact disc.

[0015] Preferably, a mounting cavity is provided in the mounting ring, and a limiting plate is provided at one end of the limiting column located in the mounting cavity.

[0016] The present invention has the following beneficial effects compared with the existing technology:

[0017] The anti-collapse mechanism of the utility model has a central axis passing through a plurality of staggered support rods, so that any two adjacent support rods form a herringbone structure with adjustable angle, so that the support area formed under the herringbone structure can adapt to pipes of different diameters, thereby meeting the use requirements in various complex environments. Whether it is a large-diameter pipe or a small-diameter pipe, stable support can be achieved by adjusting the angle of the herringbone structure, thereby enhancing the applicability and practicality of the device.

[0018] The one-way limiters arranged on adjacent support rods of the utility model cooperate with each other to effectively limit the rotation of the herringbone structure toward the outside of the support area, ensuring that the herringbone structure can remain stable when the vehicle rolls over the bearing surface and will not tilt or collapse due to external forces, thereby ensuring the protection effect of the pipeline.

[0019] When the angle of the herringbone structure of the utility model is large, the slope formed is relatively small, which is conducive to the smooth passage of vehicles. Especially in the case of small pipes, it can provide a smoother transition area and avoid the problem of vehicle bumps or difficulty in passage caused by excessive slope.

[0020] After the utility model is used, each support rod can be rotated to an overlapping position, thereby greatly reducing the storage volume of the device, not only saving storage space but also facilitating the transportation and carrying of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0023] Figure 3 This is a schematic structural diagram of the support rod in the utility model;

[0024] Figure 4 This is a schematic diagram of the angle change structure of the herringbone structure of the utility model;

[0025] Figure 5 It is a structural diagram of the one-way limiter in the utility model.

[0026] Figure 6 For this utility model Figure 2 A partial enlarged schematic diagram.

[0027] The meanings of the accompanying figures are as follows: 1. Center axis; 11. Baffle; 2. Support rod; 21. Rod body; 22. Mounting ring; 221. Buffer groove; 222. Mounting cavity; 23. Anti-sliding block; 3. One-way limit member; 31. Limit column; 32. Spring; 33. Contact plate; 34. Limit tooth; 341. Positive bevel; 342. Reverse bevel; 35. Limit plate. DETAILED DESCRIPTION

[0028] The present invention will be described clearly and completely below with reference to the accompanying drawings.

[0029] like Figure 1-3 A municipal water supply and drainage pipe anti-collapse mechanism includes a central axis 1, multiple support rods 2, and one-way limiters 3 provided on the support rods 2. The central axis 1 passes through all the support rods 2, so that the support rods 2 can rotate around the axis of the central axis 1. Blocking plates 11 are provided at both ends of the central axis 1. All the support rods 2 are located between the two blocking plates 11 and are close to each other, so that the axial position of the support rods 2 is restricted. When the support rods 2 are close to each other, the one-way limiters 3 can achieve a one-way limiting effect.

[0030] like Figure 2-6, multiple support rods 2 are alternately arranged in opposite directions, so that any two adjacent support rods 2 form a herringbone structure with an adjustable angle. A bearing surface for vehicles to pass through is formed above the herringbone structure, and a support area for pipelines to pass through is formed below the herringbone structure. By adjusting the angle of the herringbone structure, the spatial size of the support area can be changed, thereby adapting to pipelines of different diameters and meeting the use requirements in various complex environments. In the case of small pipelines, the slope formed is relatively small, which can provide a smoother transition area and avoid the problem of vehicle bumps or difficulty in passing due to excessive slope.

[0031] like Figure 3 The support rod 2 includes a rod body 21, and a mounting ring 22 is fixed to the rotating end of the rod body 21. An anti-sliding block 23 is rotatably installed on the supporting end of the rod body 21. The bottom of the support rod 2 contacts the ground through the anti-sliding block 23. Since the anti-sliding block 23 can rotate, the bottom surface of the anti-sliding block 23 can always fit with the road surface regardless of the angle of the herringbone structure. When the vehicle rolls over, it can provide sufficient friction to prevent the entire anti-collapse mechanism from sliding sideways with the wheel on the road surface. The outer surface of the rod body 21 is provided with friction grooves to increase the friction between the wheel and the rod body 21, ensuring that the wheel can smoothly pass over the bearing surface above the support rod 2, and the rod body 21 is provided with a honeycomb structure reinforcement rib to improve the physical strength of the support rod 2 and extend its service life.

[0032] The one-way limiters 3 on the two adjacent support rods 2 cooperate with each other to limit the herringbone structure from rotating outward from the support area. When supporting the wheel, the support rod 2 is subjected to downward pressure, and the support rod 2 tends to rotate outward, but is limited by the one-way limiter 3, so that the support rod 2 has sufficient supporting force to support the pipeline. Since the one-way limiter 3 only limits in one direction, the reduction of the herringbone structure angle is not restricted. Therefore, it can be adjusted from a large angle as the initial state to a small angle to adapt to different pipelines. In addition, when the herringbone structure angle is large, the slope formed is relatively small, which is conducive to the smooth passage of the vehicle. Therefore, by adjusting in the above manner, the herringbone structure is in a maximum angle state that matches the diameter of the supporting pipeline, which can provide a smoother transition area and avoid the problem of vehicle bumps or difficulty in passing due to excessive slope.

[0033] like Figure 3-6The one-way limit member 3 includes two limit columns 31 symmetrically and coaxially slidably arranged at both ends of the mounting ring 22. The cross section of the limit column 31 is non-circular. In this embodiment, the cross section of the limit column 31 is a regular hexagon, so that the limit column 31 and the mounting ring 22 can only slide but cannot rotate relative to each other. The limit column 31 is rotatably connected to the central axis 1, and a contact disk 33 is fixedly provided at one end of the limit column 31 away from the mounting ring 22 (that is, the end of the limit column 31 close to the outside of the mounting ring 22). A plurality of limit teeth 34 are distributed in a circumferential array on the contact disk 33, and a spring 32 is provided between the two limit columns 31, so that the limit teeth 34 on the two contact disks 33 in adjacent positions are staggered and engaged, and under the action of the limit teeth 34, one-way locking is achieved.

[0034] The limiting teeth 34 have a positive bevel angle 341 and a negative bevel angle 342, wherein the positive bevel angle 341 is inclined from the end close to the contact disc 33 to the end away from the contact disc 33, and the negative bevel angle 342 is inclined from the end away from the contact disc 33 to the end close to the contact disc 33. When the angle of the herringbone structure decreases, the positive bevel angle 341 of the limiting teeth 34 on the two contact discs 33 at adjacent positions counteract each other, applying an axial outward thrust to the limiting column 31, compressing the spring 32, and the two contact discs 33 move away from each other, and the limiting teeth 34 separate until the limiting teeth 34 on the two contact discs 33 at adjacent positions are misaligned and overlapped again. In this state, the two support rods 2 can rotate flexibly. When the angle of the herringbone structure increases, the negative bevel angle 342 of the limiting teeth 34 on the two contact discs 33 at adjacent positions counteract each other, applying an axial inward pulling force to the limiting column 31, and the two contact discs 33 approach each other and cannot continue to rotate. In this state, the two support rods 2 cannot rotate, forming support for the pipeline. The end of the mounting ring 22 is provided with a buffer groove 221 that adapts to the contact plate 33. The buffer groove 221 allows for position compensation when the two contact plates 33 move away from each other. The mounting ring 22 defines a mounting cavity 222. A limit plate 35 is fixed to one end of the limit post 31 located within the mounting cavity 222. The limit plate 35 cooperates with the mounting cavity 222 to limit the axial movement of the limit post 31, preventing it from falling off.

[0035] The working process of this utility model is as follows:

[0036] When in use, the support rod 2 needs to be adjusted first. When the angle of the herringbone structure is reduced, it is not restricted. Therefore, it can be adjusted to a smaller angle with a large angle as the initial state. The support area under the herringbone structure becomes larger to adapt to different pipes. When the angle of the herringbone structure is reduced, the positive bevel angles 341 of the upper limit teeth 34 of the two contact discs 33 at adjacent positions counteract each other, applying an axial outward thrust to the limit column 31, compressing the spring 32, and the two contact discs 33 move away from each other, and the limit teeth 34 separate until the upper limit teeth 34 of the two contact discs 33 at adjacent positions are offset and overlap again. In this state, the two support rods 2 can rotate flexibly. When the weight of the vehicle is borne above the support rod 2, the negative bevel angles 342 of the upper limit teeth 34 of the two contact discs 33 at adjacent positions counteract each other, applying an axial inward tension to the limit column 31, and the two contact discs 33 move closer to each other and cannot continue to rotate. In this state, the two support rods 2 cannot rotate, forming a support for the pipe. The support rod 2 tends to rotate in the opposite direction and is restricted from rotating, forming a support for the pipe.

[0037] After use, each support rod 2 can be rotated to an overlapping position, thereby greatly reducing the storage volume of the device, which not only saves storage space but also facilitates transportation and carrying of the device.

Claims

1. A municipal water supply and drainage pipeline anti-collapse mechanism, characterized in that: The invention comprises a central axis (1), a plurality of support rods (2), and a one-way limiting member (3) arranged on the support rods (2); the central axis (1) passes through all the support rods (2); baffles (11) are arranged at both ends of the central axis (1); the support rods (2) are located between the two baffles (11) and are close to each other; the plurality of support rods (2) are alternately arranged in opposite directions so that any two adjacent support rods (2) form a herringbone structure with an adjustable angle; a bearing surface for vehicles to pass through is formed above the herringbone structure, and a support area for pipelines to pass through is formed below the herringbone structure; the one-way limiting members (3) on the two adjacent support rods (2) cooperate with each other to limit the herringbone structure from rotating outward from the support area.

2. A municipal water supply and drainage pipeline anti-collapse mechanism according to claim 1, characterized in that: The support rod (2) comprises a rod body (21), a mounting ring (22) is provided at the rotating end of the rod body (21), and an anti-sliding block (23) is rotatably mounted at the supporting end of the rod body (21).

3. A municipal water supply and drainage pipeline anti-collapse mechanism according to claim 2, characterized in that: The one-way limiting member (3) comprises two limiting columns (31) symmetrically and coaxially slidably arranged in the mounting ring (22), the limiting columns (31) being rotatably connected to the central shaft (1), a contact disc (33) being provided at one end of the limiting column (31) close to the outside of the mounting ring (22), a plurality of limiting teeth (34) being distributed in a circumferential array on the contact disc (33), and a spring (32) being provided between the two limiting columns (31) so that the limiting teeth (34) on the two contact discs (33) at adjacent positions are staggered and engaged.

4. A municipal water supply and drainage pipeline anti-collapse mechanism according to claim 3, characterized in that: The cross section of the limiting column (31) is non-circular.

5. The municipal water supply and drainage pipeline anti-collapse mechanism according to claim 4, characterized in that: The end of the mounting ring (22) is provided with a buffer groove (221) adapted to the contact disc (33).

6. A municipal water supply and drainage pipeline anti-collapse mechanism according to claim 5, characterized in that: A mounting cavity (222) is provided in the mounting ring (22), and a limiting piece (35) is provided at one end of the limiting column (31) located in the mounting cavity (222).

7. The municipal water supply and drainage pipeline anti-collapse mechanism according to claim 4, characterized in that: The limiting tooth (34) has a positive bevel angle (341) and a negative bevel angle (342), wherein the positive bevel angle (341) is inclined from an end close to the contact disk (33) to an end away from the contact disk (33), and the negative bevel angle (342) is inclined from an end away from the contact disk (33) to an end close to the contact disk (33).

8. The municipal water supply and drainage pipeline anti-collapse mechanism according to claim 2, characterized in that: The outer surface of the rod body (21) is provided with friction lines, and reinforcing ribs with a honeycomb structure are provided inside the rod body (21).

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