Prefabricated steel corrugated pipe culvert backfill anti-deformation telescopic temporary support device

Abstract

This utility model discloses a prefabricated, retractable temporary support device for anti-deformation of backfill in corrugated steel culverts, specifically relating to the field of corrugated steel pipe support technology. It includes a corrugated pipe body with a sleeve installed in the middle. Multiple support rods are slidably connected to the middle of the sleeve. Multiple first circular holes are formed on the surface of the support rods and the sleeve. A pin is slidably connected to the center of each of the first circular holes. A fixing block is fixed to the surface of the sleeve. An elastic rope is fixed to the top of the fixing block. The end of the elastic rope is fixed to the pin. By providing the first circular holes and pins on the surface of the sleeve, this setup allows a single person to support and fix the corrugated pipe body. Furthermore, the rigid connection of the pins ensures that the pins and the sleeve form a stable triangular structure. This structure effectively resists backfill soil pressure during construction, significantly improving installation convenience and saving installation time.

Description

Technical Field

[0001] This utility model relates to the field of corrugated steel pipe support technology, and more specifically, to a prefabricated, retractable temporary support device for backfilling and preventing deformation of corrugated steel culverts. Background Technology

[0002] Prefabricated corrugated steel culvert support devices are temporary support systems used during culvert backfilling to prevent pipe deformation. The modular design adapts to the support requirements of different pipe diameters. Compared to traditional full-span scaffolding, this device offers advantages such as lightweight construction, reusability, and strong construction compatibility. It effectively resists backfill soil pressure during construction and has been widely used in highway and railway culvert projects.

[0003] The existing publication number CN221608642U discloses a quick-installation and dismantling internal support device for preventing deformation of corrugated steel pipe culverts. It includes retractable vertical and horizontal support rods, which are perpendicular to each other. A pin bolt is installed at the center connection point of the two support rods, allowing the vertical and horizontal support rods to rotate around the pin bolt until they overlap. Corrugated plate bases are installed at both ends of the vertical and horizontal support rods, which can fit into the inner corrugations of the corrugated steel pipe culvert to increase support stability. Sensors are also installed on the corrugated plate bases at both ends of the vertical support rods to sense the stress and deformation of the corrugated steel pipe culvert, allowing real-time monitoring of the stress and deformation after backfilling. This internal support device for preventing deformation of corrugated steel pipe culverts has low manufacturing cost, is easy to disassemble, and can greatly improve support stability and ease of storage. The inventors discovered the following problems with the existing technology during the development of this utility model:

[0004] Existing prefabricated corrugated steel pipe temporary support devices are usually fixed by traditional fastening methods such as bolts. This method requires a lot of time to install and tighten, which affects construction efficiency. Moreover, the vibration generated during construction can cause the bolts to gradually loosen, thus causing safety hazards.

[0005] Therefore, in response to the above problems, a prefabricated steel corrugated pipe culvert backfill anti-deformation telescopic temporary support device is proposed. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, this utility model provides a prefabricated steel corrugated pipe culvert backfill anti-deformation telescopic temporary support device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a prefabricated steel corrugated pipe culvert backfill anti-deformation telescopic temporary support device, comprising a corrugated pipe body, a sleeve installed in the middle of the corrugated pipe body; a plurality of support rods slidably connected in the middle of the sleeve; a plurality of first circular holes are opened on the surface of the support rods and the sleeve; and a pin is slidably connected in the middle of the first circular hole.

[0008] Preferably, a fixing block is fixedly connected to the surface of the sleeve; an elastic rope is fixedly connected to the top of the fixing block; and the end of the elastic rope is fixedly connected to a pin.

[0009] Preferably, an anti-slip pad is fixed to the surface of the sleeve; the anti-slip pad is wrapped around the surface of the pin.

[0010] Preferably, a first spring is fixedly connected to the end of the support rod; the first spring is located in the middle of the sleeve.

[0011] Preferably, a support block is fixed to the end of the support rod; the side wall of the support block has a plurality of second circular holes.

[0012] Preferably, a plurality of second springs are fixedly connected to the inner sidewall of the support block; a top rod is slidably connected to the center of the second circular hole; the top rod and the second springs are fixedly connected.

[0013] Preferably, a rubber pad is fixed to the end of the top rod; the thickness of the rubber pad is 0.2 mm.

[0014] Preferably, a plurality of mounting brackets are fixedly connected to the surface of the sleeve; a rotating rod is rotatably connected to the middle of the mounting bracket; a limit block is fixedly connected to the surface of the rotating rod; and a slot is fixedly connected to the side wall of the support block.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] 1. Compared with existing technologies, this prefabricated steel corrugated pipe culvert backfill anti-deformation telescopic temporary support device has a first circular hole and a pin on the surface of the sleeve. This setting allows a single person to complete the support and fixation of the corrugated pipe body. Secondly, the rigid connection of the pin can ensure that the pin and the sleeve form a stable triangular structure. This structure can effectively resist the backfill soil pressure during construction, greatly improve the convenience of installation, and save installation time.

[0017] 2. Compared with existing technologies, the prefabricated steel corrugated pipe culvert backfill anti-deformation telescopic temporary support device is equipped with a second spring, a top rod, etc., which can make the top rod evenly fit the inner wall of the corrugated pipe body. The angle can be adjusted by the second spring to ensure that it completely fits the crests and troughs of the corrugated pipe body, forming a continuous support surface. This can further improve the stability of fixing the inner wall of the corrugated pipe body and improve its safety factor. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a schematic diagram of the support rod of this utility model.

[0020] Figure 3 This is a schematic diagram of the limiting block of this utility model.

[0021] Figure 4 This is a schematic diagram of the structure of the first spring of this utility model.

[0022] Figure 5 This is a schematic diagram of the top rod of this utility model.

[0023] The attached figures are labeled as follows: 1. Corrugated pipe body; 11. Sleeve; 12. Support rod; 13. First circular hole; 14. Pin; 2. Fixing block; 21. Elastic rope; 3. Anti-slip pad; 4. First spring; 5. Support block; 51. Second circular hole; 6. Second spring; 61. Top rod; 7. Rubber pad; 8. Mounting bracket; 81. Rotating rod; 82. Limiting block; 83. Slot. Detailed Implementation

[0024] 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 protection scope of the present utility model.

[0025] Example 1

[0026] As attached Figures 1 to 5 The prefabricated steel corrugated pipe culvert backfill anti-deformation telescopic temporary support device shown includes a corrugated pipe body 1, a sleeve 11 installed in the middle of the corrugated pipe body 1; a plurality of support rods 12 are slidably connected in the middle of the sleeve 11; a plurality of first circular holes 13 are opened on the surface of the support rods 12 and the sleeve 11; a pin 14 is slidably connected in the middle of the first circular hole 13.

[0027] Specifically, when supporting the corrugated pipe body 1, the sleeve 11 is first placed in the middle of the corrugated pipe body 1. Then, the support rod 12 slides in the middle of the sleeve 11 until the end of the support rod 12 contacts the inner wall of the corrugated pipe body 1. Subsequently, the pin 14 is inserted into the middle of the first circular hole 13 reserved on the surface of the sleeve 11 to limit the support rod 12, thus completing the support of the corrugated pipe body 1. This setup allows a single person to complete the support and fixation of the corrugated pipe body 1. Furthermore, the rigid connection of the pin 14 ensures that the pin 14 and the sleeve 11 form a stable triangular structure. This structure can effectively resist the pressure of backfill soil during construction, greatly improving the convenience of installation and saving installation time.

[0028] Example 2

[0029] Based on Example 1, the solution in Example 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 5 As shown below, see details:

[0030] In a preferred embodiment, a fixing block 2 is fixedly attached to the surface of the sleeve 11; an elastic rope 21 is fixedly attached to the top of the fixing block 2; when the pin 14 enters the middle of the first circular hole 13, the elastic rope 21 is stretched and taut, limiting the pin 14; the elastic rope 21 is installed on the surface of the sleeve 11 through the fixing block 2; the end of the elastic rope 21 is fixedly attached to the pin 14; if the pin 14 is displaced due to vibration or accidental impact, the elastic rope 21 can immediately limit its dislodgement range, preventing the pin 14 from completely failing.

[0031] In a preferred embodiment, an anti-slip pad 3 is fixedly attached to the surface of the sleeve 11; when the pin 14 passes through the surface of the sleeve 11, the anti-slip pad 3 wraps around the middle of the pin 14; the anti-slip pad 3 wraps around the surface of the pin 14; and limits the position of the pin 14.

[0032] In a preferred embodiment, a first spring 4 is fixedly connected to the end of the support rod 12; the support rod 12 can be retracted into the middle of the sleeve 11, at which time the first spring 4 deforms and generates potential energy, and then the pin 14 enters the middle of the first circular hole 13 to be stored; the first spring 4 is located in the middle of the sleeve 11; when working, the pin 14 is moved out of the middle of the first circular hole 13, and the first spring 4 resets, which can pop the support rod 12 to the inner wall of the bellows body 1.

[0033] In a preferred embodiment, a support block 5 is fixedly connected to the end of the support rod 12; a plurality of second circular holes 51 are opened on the side wall of the support block 5; when the support rod 12 pops out, the support block 5 first contacts the inner wall of the bellows body 1.

[0034] In a preferred embodiment, multiple second springs 6 are fixedly connected to the inner wall of the support block 5; then the second springs 6 push out the top rod 61; the top rod 61 is slidably connected to the middle of the second circular hole 51; the top rod 61 slides in the middle of the second circular hole 51; the top rod 61 and the second springs 6 are fixedly connected; since there are multiple top rods 61, the top rods 61 are evenly attached to the inner wall of the corrugated pipe body 1, and the angle is adjusted by the second springs 6 to ensure that they are completely matched with the crests and troughs of the corrugated pipe body 1 to form a continuous support surface.

[0035] In a preferred embodiment, a rubber pad 7 is fixed to the end of the push rod 61; the thickness of the rubber pad 7 is 0.2mm; when the push rod 61 contacts the inner wall of the bellows body 1, the rubber pad 7 is compressed and deformed under the pressure of the first spring 4, which not only fills the microscopic unevenness of the inner wall of the bellows body 1, but also produces an interlocking effect through the anti-slip texture on the surface of the rubber pad 7.

[0036] In a preferred embodiment, a plurality of mounting brackets 8 are fixedly attached to the surface of the sleeve 11. When the support rod 12 is to be stored, the support rod 12 is first pushed back to the middle of the sleeve 11. A rotating rod 81 is rotatably connected to the middle of the mounting bracket 8. Then, the end of the limiting block 82 is moved toward the groove reserved in the slot 83. At this time, the rotating rod 81 slides in the middle of the mounting bracket 8. The limiting block 82 is fixedly attached to the surface of the rotating rod 81. A slot 83 is fixedly attached to the side wall of the support block 5. The limiting block 82 and the groove in the middle of the slot 83 are engaged to complete the storage of the support rod 12.

[0037] In this embodiment, the first spring 4, rubber pad 7, etc. are all commercially available devices known to those skilled in the art. They can be customized or selected according to actual needs. Here, we are only using them without making any structural or functional improvements, so we will not go into detail here.

[0038] The working process of this utility model is as follows: First, when supporting the corrugated pipe body 1, the sleeve 11 is placed in the middle of the corrugated pipe body 1. Then, the support rod 12 slides in the middle of the sleeve 11 until the end of the support rod 12 contacts the inner wall of the corrugated pipe body 1. Then, the pin 14 is inserted into the middle of the first circular hole 13 reserved on the surface of the sleeve 11. The anti-slip pad 3 wraps the pin 14 in the middle, and the support rod 12 is fixedly supported, thus completing the support of the corrugated pipe body 1. When the pin 14 enters the middle of the first circular hole 13, the elastic rope 21 is stretched and taut to limit the pin 14, and the support rod 12 is retracted into the middle of the sleeve 11. At this time, the first spring 4 deforms and generates potential energy. Then, the pin 14 can be stored in the middle of the first circular hole 13. When working, the pin 14 is moved out of the middle of the first circular hole 13, and the first spring 4 resets, which can pop the support rod 12 to the inner wall of the corrugated pipe body 1.

[0039] When the support rod 12 pops out, the support block 5 first contacts the inner wall of the bellows body 1. Then, the second spring 6 pushes the top rod 61 out and slides in the middle of the second circular hole 51. Since there are multiple top rods 61, they are evenly attached to the inner wall of the bellows body 1. The angle is adjusted by the second spring 6 to ensure that the top rods 61 are completely fitted with the crests and troughs of the bellows body 1, forming a continuous support surface. When the top rod 61 contacts the inner wall of the bellows body 1, the rubber pad 7 is compressed and deformed under the pressure of the first spring 4, which fills the micro-filling of the inner wall of the bellows body 1. The uneven surface is addressed by the interlocking action of the anti-slip texture on the surface of the rubber pad 7, which supports and fixes the corrugated pipe body 1. At the same time, when the support rod 12 is to be stored, the support rod 12 is first pushed back to the middle of the sleeve 11; then the end of the limiting block 82 is moved towards the groove reserved in the slot 83; at this time, the rotating rod 81 slides in the middle of the mounting frame 8, and the limiting block 82 and the groove in the middle of the slot 83 are engaged, thus completing the storage of the support rod 12. The above is the working principle of the prefabricated steel corrugated pipe culvert backfill anti-deformation telescopic temporary support device.

Claims

1. A kind of assembled steel corrugated pipe culvert backfill anti-deformation telescopic temporary support device, including corrugated pipe body (1), it is characterized by: A sleeve (11) is installed in the middle of the corrugated pipe body (1); a plurality of support rods (12) are slidably connected in the middle of the sleeve (11); a plurality of first circular holes (13) are opened on the surface of the support rods (12) and the sleeve (11); a pin (14) is slidably connected in the middle of the first circular hole (13).

2. The prefabricated steel corrugated pipe culvert backfill anti-deformation telescopic temporary support device according to claim 1, characterized in that: A fixing block (2) is fixedly attached to the surface of the sleeve (11); an elastic rope (21) is fixedly attached to the top of the fixing block (2); and the end of the elastic rope (21) is fixedly attached to the pin (14).

3. The prefabricated steel corrugated pipe culvert backfill anti-deformation telescopic temporary support device according to claim 2, characterized in that: The sleeve (11) is fixedly attached to the surface of the anti-slip pad (3); the anti-slip pad (3) is wrapped around the surface of the pin (14).

4. The prefabricated steel corrugated pipe culvert backfill anti-deformation telescopic temporary support device according to claim 1, characterized in that: The support rod (12) is fixed to the end of a first spring (4); the first spring (4) is located in the middle of the sleeve (11).

5. The prefabricated steel corrugated pipe culvert backfill anti-deformation telescopic temporary support device according to claim 4, characterized in that: The end of the support rod (12) is fixedly connected to a support block (5); the side wall of the support block (5) is provided with a plurality of second circular holes (51).

6. The prefabricated steel corrugated pipe culvert backfill anti-deformation telescopic temporary support device according to claim 5, characterized in that: Multiple second springs (6) are fixedly connected to the inner wall of the support block (5); a top rod (61) is slidably connected to the middle of the second circular hole (51); the top rod (61) and the second springs (6) are fixedly connected.

7. The prefabricated steel corrugated pipe culvert backfill anti-deformation telescopic temporary support device according to claim 6, characterized in that: A rubber pad (7) is fixed to the end of the top rod (61); the thickness of the rubber pad (7) is 0.2 mm.

8. The prefabricated steel corrugated pipe culvert backfill anti-deformation telescopic temporary support device according to claim 5, characterized in that: The sleeve (11) has multiple mounting brackets (8) fixedly attached to its surface; a rotating rod (81) is rotatably connected to the middle of the mounting bracket (8); a limit block (82) is fixedly attached to the surface of the rotating rod (81); and a slot (83) is fixedly attached to the side wall of the support block (5).

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