Foundation anti-cracking device for road maintenance
By introducing an adjustment mechanism into the foundation anti-cracking device for highway maintenance, the problem of adjusting water demand in different areas has been solved, and precise control of water output has been achieved. This ensures uniform wetting of the road surface foundation, reduces cracking and settlement, extends the service life of the highway, and lowers maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LONGNAN HIGHWAY DEV CENT OF GANSU PROVINCE
- Filing Date
- 2025-06-14
- Publication Date
- 2026-05-15
AI Technical Summary
Existing road maintenance foundation anti-cracking devices cannot adjust the water volume at the outlet according to the water demand of different areas of the roadbed, resulting in inappropriate water spray volume, which may lead to foundation cracking.
A device including an adjustment mechanism is designed. The adjustment mechanism consists of an adjustment pipe, a rotating shell, a positioning ring, and a diversion component. Through the rotational connection between the adjustment pipe and the rotating shell and the limiting effect of the positioning ring, the water volume of multiple outlet pipes can be precisely controlled to ensure the uniformity of soil wetting in different areas.
It enables targeted water spraying on the foundation of different road sections, reducing road surface cracking and settlement caused by uneven soil wetting, extending the service life of highways, reducing maintenance costs, and improving the safety and comfort of highways.
Smart Images

Figure CN224243627U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of TT technology, and in particular to a foundation anti-cracking device for highway maintenance. Background Technology
[0002] Highway maintenance subgrade anti-cracking devices primarily work by spraying water onto the road surface subgrade to keep the underlying soil moist and prevent cracking caused by drought. These devices help extend the service life of highways and reduce maintenance costs due to subgrade problems, making them an important protective facility in highway maintenance.
[0003] As shown in the reference case "A Foundation Anti-Cracking Device for Highway Maintenance" (Announcement No. CN222205955U), by setting up an installation frame and an installation block to determine the extension length of the adjustment rod, the humidification range can be controlled to better prevent cracking. The installation block can be stably clamped to fix the adjustment rod, ensuring that the adjustment rod can be adjusted and sprayed in subsequent operations.
[0004] Although the humidification range can be controlled by adjusting the length of the regulating rod in the above application, the device cannot adjust the water volume of the outlet according to the water demand of different areas of the roadbed. This can easily lead to the problem of the ground cracking due to unsuitable water spray volume. Utility Model Content
[0005] Therefore, it is necessary to provide a road maintenance foundation anti-cracking device to address the problem of not being able to adjust the water volume of the outlet according to the water demand of different areas of the roadbed.
[0006] A foundation crack prevention device for highway maintenance includes: a base, a water supply pipe, a water outlet pipe, and a clamping mechanism installed on the base.
[0007] In one embodiment, the regulating mechanism includes a regulating pipe fixedly connected between the water supply pipe and the water outlet pipe, a rotating shell rotatably connected to the outer surface of the regulating pipe, and a flow diversion component disposed inside the regulating pipe.
[0008] In one embodiment, the diversion assembly includes two limiting rings fixedly connected to the inner wall of the regulating pipe, and the inner walls of the two limiting rings are rotatably connected to a first diversion block and a second diversion block and fixedly connected to a third diversion block.
[0009] In one embodiment, the first diverter block, the second diverter block, and the third diverter block are three equal arc-shaped blocks, and the thickness of the first diverter block, the second diverter block, and the third diverter block increases sequentially.
[0010] In one embodiment, a drive block is fixedly connected to the arc surface of the first diverter block, and the drive block passes through the regulating pipe and is fixedly connected to the rotating shell via a connecting rod.
[0011] In one embodiment, two positioning rings are fixedly connected to the outer surface of the regulating tube. The positioning rings are made of rubber and are rotatably connected to the inner wall of the rotating shell. The surface of the positioning rings has three positioning holes.
[0012] In one embodiment, a telescopic rod is provided between the inner walls of both ends of the rotating shell and the two positioning rings. The telescopic end of the telescopic rod is spherical, while the other end is fixedly connected to the inner wall of the rotating shell.
[0013] In one embodiment, the first diverter block is a solid arc-shaped block, and the second and third diverter blocks are both hollow arc-shaped blocks with one end open.
[0014] In one embodiment, one end of the water supply pipe is connected to the regulating pipe, and the other end of the regulating pipe is connected to the outlet pipe. Beneficial effects
[0015] 1. By installing an adjustment mechanism between the water supply pipe and the outlet pipe, the water output of multiple different outlet pipes on the same supply pipe can be adjusted. This allows for precise control of the water output of each outlet pipe, enabling targeted water spraying for different road sections and effectively reducing problems such as road surface cracking and settlement caused by uneven soil wetting. Simultaneously, the adjustment mechanism can flexibly adjust the water volume according to the needs of different foundations, ensuring the stability and uniform wetting of the road surface foundation, reducing potential cracks during construction and maintenance, extending the service life of the highway, lowering maintenance costs, and improving the safety and comfort of the highway.
[0016] 2. By setting a positioning ring between the regulating pipe and the rotating shell, the sealing of the regulating pipe can be increased. At the same time, the positioning hole on its surface, together with the telescopic rod, can provide a limit for the rotating shell, making it more convenient for users to operate, improving the accuracy of the internal flow distribution of the device, making the water volume regulation more precise, and improving the practicality of the device. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the installation of the adjustment mechanism of this utility model;
[0020] Figure 3 This is a cross-sectional view of the rotating shell of this utility model;
[0021] Figure 4 This is a cross-sectional view of the regulating tube and rotating shell of this utility model;
[0022] Figure 5 This is a schematic diagram showing the adjustment state of the current splitter component of this utility model;
[0023] Figure 6 This is an exploded view of the adjustment component of this utility model.
[0024] Figure label:
[0025] 100. Base; 200. Clamping mechanism; 300. Water supply pipe; 310. Water outlet pipe; 400. Adjustment mechanism; 410. Adjustment pipe; 411. Positioning ring; 412. Positioning hole; 420. Rotating shell; 421. Telescopic rod; 430. Diverting assembly; 431. First diverting block; 4311. Drive block; 432. Second diverting block; 433. Third diverting block; 434. Limiting ring. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0027] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.
[0028] Furthermore, 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0029] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0030] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this specification belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.
[0031] The following is combined Figures 1-6 This invention describes a foundation anti-cracking device for highway maintenance.
[0032] In one embodiment, a foundation anti-cracking device for highway maintenance includes: a base 100, a water supply pipe 300, a water outlet pipe 310, and a clamping mechanism 200 installed on the base 100.
[0033] The regulating mechanism 400 includes a regulating pipe 410 fixedly connected between the water supply pipe 300 and the water outlet pipe 310. A rotating shell 420 is rotatably connected to the outer surface of the regulating pipe 410, and a diversion component 430 is provided inside the regulating pipe 410.
[0034] like Figure 4 , Figure 5 and Figure 6As shown, the diversion assembly 430 includes two limiting rings 434 fixedly connected to the inner wall of the regulating pipe 410. A first diversion block 431 and a second diversion block 432 are rotatably connected to the inner walls of the two limiting rings 434, and a third diversion block 433 is fixedly connected to them. The first diversion block 431, the second diversion block 432, and the third diversion block 433 are three equal arc-shaped blocks. The thickness of the first diversion block 431, the second diversion block 432, and the third diversion block 433 increases sequentially. A driving block 4311 is fixedly connected to the arc surface of the first diversion block 431. The drive block 4311 passes through the adjustment tube 410 via a connecting rod and is fixedly connected to the rotating shell 420. Two positioning rings 411 are fixedly connected to the outer surface of the adjustment tube 410. The positioning rings 411 are made of rubber and are rotatably connected to the inner wall of the rotating shell 420. Three positioning holes 412 are opened on the surface of the positioning rings 411. Telescopic rods 421 are provided between the inner walls of both ends of the rotating shell 420 and the two positioning rings 411. The telescopic end of the telescopic rod 421 is spherical and the other end is fixedly connected to the inner wall of the rotating shell 420.
[0035] In this embodiment, both ends of the regulating pipe 410 are inserted into the outer surface of the regulating pipe 410. When the regulating pipe 410 drives the driving block 4311 to rotate, the regulating pipe 410 will rotate along the surface of the regulating pipe 410. At the same time, the telescopic rod 421 will move along the positioning ring 411. At this time, the positioning ring 411 is fixed relative to the regulating pipe 410 but rotates relative to the rotating shell 420. When most of the first diverting block 431 is received into the second diverting block 432, the telescopic rod 421 will move to the positioning hole 412 located in the middle of the positioning ring 411 and be inserted into the positioning hole 412. Since the telescopic end of the telescopic rod 421 is spherical, the positioning hole 412 will provide a relatively weak limiting effect for the telescopic rod 421. This limiting effect can only keep the rotating shell 420 stable under the condition of no external force. When it is necessary to adjust the water output again, the rotating shell 421 can be rotated directly. 0. The telescopic rod 421 will move directly out of the positioning hole 412; the thickness of the drive block 4311 is equal to the thickness of the regulating pipe 410, and the drive block 4311 is rotatably connected to the inner wall of the regulating pipe 410. Since the drive block 4311 needs to be connected to the rotating shell 420, the surface of the regulating pipe 410 is provided with an arc groove. So when the water flows through the two limiting rings 434, it will flow into the outer wall of the regulating shell. The positioning block is made of rubber, which restricts the water flow between the two positioning rings 411. So the space formed by the positioning rings 411, the rotating shell 420 and the regulating pipe 410 is still a relatively sealed space and will not affect the water flow. The three positioning holes 412 are spaced 80 degrees apart, and the positioning holes 412 at both ends are spaced 240 degrees apart. When the first diverting block 431 is in the closed state, the telescopic rod 421 is in the positioning hole 412 at one end.
[0036] The regulating mechanism 400 of this device is located at the connection between the water supply pipe 300 and the water outlet pipe 310. The water flow rate of the nozzle is changed by changing the water flow rate inside the regulating pipe 410 through the diversion component 430 in the regulating mechanism 400. Since this mechanism is still in a relatively sealed state, it will not affect the overall water flow of the device.
[0037] like Figure 1 , Figure 2 and Figure 3 As shown, the first diversion block 431 is a solid arc-shaped block, and the second diversion block 432 and the third diversion block 433 are both hollow arc-shaped blocks with one end open. The water supply pipe 300 is connected to one end of the regulating pipe 410, and the other end of the regulating pipe 410 is connected to the outlet pipe 310.
[0038] In this embodiment, all three diversion blocks are arc-shaped blocks with an arc of 120 degrees. The first diversion block 431 is inserted into one end of the second diversion block 432 and is equipped with a limit block. When the water volume needs to be reduced, the first diversion block 431 will move first. When it moves to the edge of the second limit block, the limit block will drive the second diversion block 432 to rotate, thereby gradually adjusting the water volume.
[0039] Working principle: Install the device in the preset position, then connect the water supply pipe 300 to the water source, connect the water outlet pipe 310 to the nozzle, and then adjust the water output through the adjustment mechanism 400 according to the foundation of different road sections.
[0040] During the adjustment process, if it is necessary to reduce the water output, the rotating shell 420 is rotated clockwise. The rotating shell 420 drives the drive block 4311 to rotate via the connecting rod, thereby driving the first diverter block 431 to rotate clockwise. When the diverter block rotates to the edge of the second diverter block 432, it will drive the second diverter block 432 to rotate clockwise until the front end of the telescopic rod 421 is inserted into the corresponding positioning hole 412 of the positioning ring 411, thereby reducing the amount of water entering the water outlet pipe 310 and reducing the amount of water in the nozzle.
[0041] When it is necessary to increase the water output, the first diverter block 431 is rotated counterclockwise by rotating the rotating shell 420, causing the first diverter block 431 to move into the second diverter block 432. When the front end of the first diverter block 431 contacts the end of the second diverter block 432, the first diverter block 431 will push the second diverter block 432 to contract into the third diverter block 433, thereby increasing the amount of water entering the water outlet pipe 310, thus increasing the amount of water sprayed from the nozzle to achieve the effect of different water output for different nozzles.
[0042] It should be noted that the telescopic rod 421, clamping mechanism 200 and base 100 mentioned above are devices with relatively mature existing technology. The specific models can be selected according to actual needs, and will not be elaborated here.
[0043] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0044] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.
Claims
1. A foundation crack prevention device for highway maintenance, characterized in that, include: The base (100), water supply pipe (300), water outlet pipe (310), and clamping mechanism (200) mounted on the base (100); The regulating mechanism (400) includes a regulating pipe (410) fixedly connected between the water supply pipe (300) and the water outlet pipe (310). A rotating shell (420) is rotatably connected to the outer surface of the regulating pipe (410), and a diversion component (430) is provided inside the regulating pipe (410).
2. The anti-cracking device for highway maintenance foundations according to claim 1, characterized in that, The diversion assembly (430) includes two limiting rings (434) fixedly connected to the inner wall of the regulating pipe (410). The inner walls of the two limiting rings (434) are rotatably connected to a first diversion block (431) and a second diversion block (432) and fixedly connected to a third diversion block (433).
3. The anti-cracking device for highway maintenance foundations according to claim 2, characterized in that, The first diverter block (431), the second diverter block (432), and the third diverter block (433) are three equal arc-shaped blocks, and the thickness of the first diverter block (431), the second diverter block (432), and the third diverter block (433) increases sequentially.
4. The anti-cracking device for highway maintenance foundations according to claim 2, characterized in that, The first diverter block (431) has a drive block (4311) fixedly connected to its arc surface. The drive block (4311) passes through the regulating pipe (410) via a connecting rod and is fixedly connected to the rotating shell (420).
5. The anti-cracking device for highway maintenance foundations according to claim 1, characterized in that, Two positioning rings (411) are fixedly connected to the outer surface of the regulating tube (410). The positioning rings (411) are made of rubber. The outer surface of the positioning rings (411) is rotatably connected to the inner wall of the rotating shell (420). Three positioning holes (412) are opened on the surface of the positioning rings (411).
6. The anti-cracking device for highway maintenance foundations according to claim 1, characterized in that, Telescopic rods (421) are provided between the inner walls of both ends of the rotating shell (420) and the two positioning rings (411). The telescopic end of the telescopic rod (421) is spherical, while the other end is fixedly connected to the inner wall of the rotating shell (420).
7. The anti-cracking device for highway maintenance foundations according to claim 2, characterized in that, The first diverter block (431) is a solid arc-shaped block, and the second diverter block (432) and the third diverter block (433) are both hollow arc-shaped blocks with one end open.
8. The anti-cracking device for highway maintenance foundations according to claim 1, characterized in that, The water supply pipe (300) is connected to one end of the regulating pipe (410), and the other end of the regulating pipe (410) is connected to the water outlet pipe (310).