Pre-buried hoisting concrete pipe with buffer pad

By introducing buffer rubber and rubber sheets into the concrete pipe, combined with the adjustment of upper and lower steps, the problems of impact damage and leveling during pipe installation were solved, achieving a stable and efficient installation process.

CN224497730UActive Publication Date: 2026-07-14FOSHAN PANFENG CEMENT PROD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FOSHAN PANFENG CEMENT PROD CO LTD
Filing Date
2025-09-19
Publication Date
2026-07-14

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Abstract

This utility model discloses a pre-embedded hoisting concrete pipe with a buffer pad, relating to the field of civil engineering technology. The utility model includes a buffer assembly, comprising a filling rubber located inside the left end of the concrete pipe body, a buffer rubber on the left wall of the filling rubber, and a rubber sheet fixed to the outer peripheral wall of the left end of the buffer rubber. A leveling assembly is located on the right side of the bottom of the concrete pipe body, comprising an upper leveling block fixed to the concrete pipe body, a lower leveling block below the upper leveling block, and multiple upper steps fixed from left to right on the lower wall of the upper leveling block. A lower step, corresponding to the upper wall of the lower leveling block, is fixed below the upper step and engages with the upper step. This utility model reduces the impact on the ends of the two concrete pipe bodies during installation through the buffer rubber, filling rubber, and rubber sheet, and provides height adjustment for the smaller diameter end of the concrete pipe body through the cooperation of the upper and lower steps, ensuring the concrete pipe body is in a horizontal state.
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Description

Technical Field

[0001] This utility model belongs to the field of civil engineering technology, and in particular relates to a pre-embedded hoisting concrete pipe with a buffer pad. Background Technology

[0002] Concrete pipes are pipes made of concrete, which have advantages such as high strength, good durability and high compressive strength. They are usually used to transport sewage, rainwater, natural gas, power cables, etc. Especially for the laying of underground pipelines, due to their large weight, after being transported to the installation site, multiple concrete pipes are usually connected end to end by hoisting.

[0003] In existing technologies, the stability of concrete pipes is poor during hoisting, often resulting in the ends of two adjacent concrete pipes colliding when they are joined. This can easily cause the colliding ends of the concrete pipes to crack, resulting in damage or even scrapping. Furthermore, the different diameters at both ends of the concrete pipes and the flatness of the pre-buried trench make it difficult to keep the main body of the concrete pipe in a horizontal position during installation, leading to installation inconvenience.

[0004] To address these issues, we provide a pre-embedded hoisting concrete pipe with a buffer pad. Utility Model Content

[0005] The purpose of this utility model is to provide a pre-embedded hoisting concrete pipe with a buffer pad. By using buffer rubber, filling rubber, and rubber sheets, the impact at the ends of two concrete pipe bodies is reduced during installation. Furthermore, the combination of the upper and lower steps provides height adjustment for the smaller diameter end of the concrete pipe body to keep it horizontal. This solves the problem of end collisions that often occur when two adjacent concrete pipes are joined in the prior art, which can easily cause cracks and damage or even scrapping of the colliding ends of the concrete pipes. It also addresses the inconvenience of keeping the concrete pipe body horizontal during installation.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a pre-embedded hoisting concrete pipe with a buffer pad, comprising a buffer assembly. The buffer assembly includes a filling rubber disposed inside the left end of the concrete pipe body, a buffer rubber disposed on the left wall of the filling rubber, and a rubber sheet fixedly disposed on the outer peripheral wall of the left end of the buffer rubber. A leveling assembly is disposed on the right side of the bottom of the concrete pipe body. The leveling assembly includes an upper leveling block fixed to the concrete pipe body, a lower leveling block disposed below the upper leveling block, and multiple upper steps fixedly disposed on the lower wall of the upper leveling block from left to right. A lower step that cooperates with the upper step is fixedly disposed below the upper wall of the lower leveling block.

[0008] The present invention is further configured such that a groove is provided on the outer peripheral wall of the left side of the concrete pipe body, and the end of the rubber sheet away from the buffer rubber is located inside the groove.

[0009] The present invention is further provided that the left end of the inner peripheral wall of the buffer rubber is chamfered.

[0010] The present invention is further configured such that the interior of the filling rubber is hollowed out, and the left wall of the filling rubber is fixedly provided with a connecting part in a circumferential array. The left end of the connecting part is fixedly provided with a protrusion, and both the protrusion and the connecting part are located inside the cushioning rubber.

[0011] The present invention is further configured such that both the upper and lower steps are arc-shaped, and the horizontal plane of the multiple upper steps decreases sequentially from left to right.

[0012] The present invention is further configured such that a mounting plate is fixedly provided on the lower wall of the lower leveling block, and screws are provided through the front and rear sides of the mounting plate. A movable block is fixedly provided at the lower end of the screws, and a nut is connected to the upper part of the mounting plate corresponding to the external thread of the screws.

[0013] The present invention is further configured such that the movable block is shaped like a frustum, an expansion tube is sleeved on the outside of the movable block, a rectangular groove is formed in a circumferential array on the lower side of the expansion tube, a protrusion fixed to the movable block is provided in the internal gap of the rectangular groove, and a positioning rod inserted into the mounting plate is fixed in a circumferential array on the upper wall of the expansion tube.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model, by setting up a rubber sheet, a buffer rubber, and a filler rubber, ensures that the buffer rubber and filler rubber are located inside the larger diameter end of the concrete pipe body, while the rubber sheet is wrapped around the outside of the larger diameter end of the concrete pipe body. When the concrete pipe body is installed, if the smaller diameter end of the concrete pipe body is inserted into the larger diameter end of another concrete pipe body, the smaller diameter end of the concrete pipe body to be installed will first come into contact with the rubber sheet or buffer rubber. This reduces the impact on the ends of the two concrete pipe bodies during installation, and reduces the phenomenon of damage or scrapping of the concrete pipe body caused by the impact.

[0016] 2. This utility model sets up an upper leveling block, an upper step, a lower leveling block, and a lower step. The upper step is fixed to the upper leveling block, and the lower step is fixed to the lower leveling block. When the concrete pipe body is adjusted to be horizontal, the lower leveling block is adjusted to move left and right accordingly. After the upper step and the lower step come into contact, the concrete pipe body is in a horizontal state. Compared with the prior art, the leveling of the concrete pipe body can be achieved by using the cooperation of the upper step and the lower step, which facilitates the leveling and installation of the concrete pipe body. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is an overall structural diagram of a pre-embedded hoisting concrete pipe with a buffer pad.

[0019] Figure 2 This is a vertical sectional view of a pre-embedded hoisting concrete pipe with a buffer pad.

[0020] Figure 3 This is an exploded view of the buffer component.

[0021] Figure 4 for Figure 3 Another perspective on the structure.

[0022] Figure 5 The structural diagram for the leveling component.

[0023] Figure 6 for Figure 5 An exploded view of part of the structure.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1-Concrete pipe body, 101-Groove, 2-Buffer assembly, 201-Rubber sheet, 202-Buffer rubber, 203-Filling rubber, 204-Connecting part, 205-Protrusion, 3-Leveling assembly, 301-Upper leveling block, 301a-Upper step, 302-Mounting plate, 303-Expansion pipe, 303a-Rectangular groove, 303b-Positioning rod, 304-Lower leveling block, 304a-Lower step, 305-Screw, 305a-Nut, 306-Moving block, 306a-Protruding strip. Detailed Implementation

[0026] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1

[0028] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 This is the first embodiment of the present invention. This embodiment provides a pre-embedded hoisting concrete pipe with a buffer pad, including a buffer assembly 2. The buffer assembly 2 includes a filling rubber 203 disposed inside the left end of the concrete pipe body 1. Figure 1 or Figure 2 It can be seen that the left end of the concrete pipe body 1 is the end with a larger diameter. After the two adjacent concrete pipe bodies 1 are installed, the filling rubber 203 is deformed by the compression of the smaller end of the concrete pipe body 1. In this state, the filling rubber 203 expands and the side wall presses against the concrete pipe body 1, thereby forming a sealing effect between the concrete pipe body 1 and the adjacent concrete pipe body 1. The left wall of the filling rubber 203 is provided with a buffer rubber 202. The outer peripheral wall of the left end of the buffer rubber 202 is fixed with a rubber sheet 201. The rubber sheet 201 is elastic so that it can be installed on the outside of the larger diameter end of the concrete pipe body 1. The cooperation of the buffer rubber 202 and the rubber sheet 201 can reduce the collision phenomenon when the two concrete pipe bodies 1 are connected, which may cause damage or even scrapping of the concrete pipe body 1.

[0029] Specifically, a groove 101 is provided on the outer peripheral wall of the left side of the concrete pipe body 1. The end of the rubber sheet 201 away from the buffer rubber 202 is located inside the groove 101, which can make the buffer rubber 202 and the concrete pipe body 1 relatively fixed.

[0030] The left end of the inner peripheral wall of the buffer rubber 202 is chamfered so that the smaller diameter end of the other concrete pipe body 1 can be inserted into the buffer rubber 202.

[0031] The internal hollow design of the filling rubber 203 allows for greater deformation, thus meeting the sealing requirements of the larger end of the concrete pipe body 1. The left wall of the filling rubber 203 is fixed with a connecting part 204 in a circumferential array. The left end of the connecting part 204 is fixed with a protrusion 205, the diameter of which is slightly larger than that of the connecting part 204. Both the protrusion 205 and the connecting part 204 are located inside the buffer rubber 202. The above arrangement connects the filling rubber 203 and the buffer rubber 202 by the interference fit between the protrusion 205 and the connecting part 204 inside the buffer rubber 202.

[0032] Furthermore, both the protrusion 205 and the connecting part 204 can be made of rubber, and the protrusion 205, the connecting part 204 and the filling rubber 203 can be produced by integral molding;

[0033] The operation process of this embodiment is as follows: When the pre-embedded hoisting concrete pipe with buffer pad is shipped, the buffer component 2 can be fixed at the larger diameter end of the concrete pipe body 1. After the concrete pipe body 1 is transported to the installation area, the pre-embedded hoisting concrete pipe with buffer pad is placed in the pre-embedded trench by hoisting equipment, and the upper leveling block 301 is facing down. The concrete pipe body 1 is made horizontal by operating the leveling component 3.

[0034] Then, the next concrete pipe body 1 is hoisted and inserted into the buffer rubber 202 in the already installed concrete pipe body 1. Then, the side wall of the concrete pipe body 1 with the smaller diameter end comes into contact with the filling rubber 203 in the already installed concrete pipe body 1 and achieves a squeezing effect. At this time, the filling rubber 203 in the already installed concrete pipe body 1 expands to achieve a seal. Then, by operating the leveling component 3, two adjacent concrete pipe bodies 1 can be connected and installed. This cycle is repeated to complete the installation of the concrete pipe body 1.

[0035] Example 2

[0036] Please see Figure 1 , Figure 5 and Figure 6 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment, but differs from the first embodiment in that: a leveling component 3 is provided on the right side of the bottom of the concrete pipe body 1. The leveling component 3 includes an upper leveling block 301 fixed to the concrete pipe body 1, and a lower leveling block 304 is provided below the upper leveling block 301. Multiple upper steps 301a are fixedly provided on the lower wall of the upper leveling block 301 from left to right. A lower step 304a is fixedly provided on the upper wall of the lower leveling block 304 below the upper step 301a, which cooperates with the upper step 301a. With the above arrangement, the smaller diameter end of the concrete pipe body 1 can be supported by the cooperation between the upper step 301a and the lower step 304a. By adjusting the relative position between the upper step 301a and the lower step 304a, the concrete pipe body 1 can be supported in a horizontal state.

[0037] Specifically, both the upper step 301a and the lower step 304a are arc-shaped. The horizontal plane of the multiple upper steps 301a decreases sequentially from left to right, while the horizontal plane of the multiple lower steps 304a increases sequentially from left to right.

[0038] A mounting plate 302 is fixedly installed on the lower wall of the leveling block 304. The mounting plate 302 is located on the ground at the bottom of the excavated pre-embedded trench. Screws 305 are installed through the front and rear sides of the mounting plate 302. A movable block 306 is fixedly installed at the lower end of the screws 305. A nut 305a is connected to the upper part of the mounting plate 302 corresponding to the external thread of the screws 305. The screws 305 are raised and lowered by rotating the nut 305a, which in turn raises and lowers the movable block 306 accordingly.

[0039] The movable block 306 is shaped like a frustum, with the smaller diameter end facing upwards. An expansion tube 303 is fitted around the outside of the movable block 306. Rectangular grooves 303a are arranged in a circular array on the lower side of the expansion tube 303. The expansion tube 303 is made of elastic material. With the help of the rectangular grooves 303a, the lower side of the expansion tube 303 can deform outwards to press against the soil. The internal gap of the rectangular grooves 303a is fitted with a protrusion 306a that is fixed to the movable block 306, which can prevent the movable block 306 and the expansion tube 303 from rotating relative to each other. The upper wall of the expansion tube 303 is fixed with a positioning rod 303b that is inserted into the mounting plate 302 in a circular array. The positioning rod 303b can prevent the expansion tube 303 from rotating, so that when the nut 305a rotates, it drives the screw 305 to rise and fall.

[0040] Furthermore, the upper leveling block 301 and the upper step 301a are preferably made of concrete so as to facilitate integral molding and production with the concrete pipe body 1, while the lower step 304a, the lower leveling block 304 and the mounting plate 302 can be made of concrete or solid metal, such as iron.

[0041] The operation process of this embodiment is as follows: When supporting the concrete pipe body 1, the concrete pipe body 1 is hoisted into the pre-embedded trench using external hoisting equipment, so that the two concrete pipe bodies 1 are connected. At the same time, the horizontal detection mechanism is used to make the concrete pipe body 1 horizontal. At this time, the operating installation plate 302 moves from the end with the smaller diameter of the concrete pipe body 1 to the end with the larger diameter of the concrete pipe body 1 until the lower step 304a contacts the upper step 301a.

[0042] At this point, mark the location where the expansion tube 303 is to be buried according to the position of the screw 305. Then remove the leveling component 3 and use a drilling device to drill a hole of matching diameter at the marked location. Next, first put the expansion tube 303, the moving block 306 and the screw 305 into the hole. Then operate the mounting plate 302 so that the screw 305 passes through the mounting plate 302. Screw the nut 305a on the outside of the mounting plate 302 corresponding to the screw 305. When tightening the nut 305a, the moving block 306 moves upward and drives the lower side of the expansion tube 303 to expand outward and press against the soil to prevent the mounting plate 302 from moving horizontally.

[0043] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A pre-embedded hoisting concrete pipe with a buffer pad, comprising a buffer assembly (2), characterized in that: The buffer assembly (2) includes a filling rubber (203) disposed inside the left end of the concrete pipe body (1), the left wall of the filling rubber (203) is provided with a buffer rubber (202), and the outer peripheral wall of the left end of the buffer rubber (202) is fixed with a rubber sheet (201). A leveling component (3) is provided on the right side of the bottom of the concrete pipe body (1). The leveling component (3) includes an upper leveling block (301) fixed to the concrete pipe body (1). A lower leveling block (304) is provided below the upper leveling block (301). Multiple upper steps (301a) are fixedly provided on the lower wall of the upper leveling block (301) from left to right. A lower step (304a) is fixedly provided on the upper wall of the lower leveling block (304) below the upper step (301a) to cooperate with the upper step (301a).

2. The embedded concrete pipe with buffer pad according to claim 1, characterized in that: The outer peripheral wall on the left side of the concrete pipe body (1) is provided with a groove (101), and the end of the rubber sheet (201) away from the buffer rubber (202) is located inside the groove (101).

3. The embedded concrete pipe with buffer pad according to claim 2, characterized in that: The left end of the inner peripheral wall of the buffer rubber (202) is chamfered.

4. The embedded concrete pipe with buffer pad according to claim 3, characterized in that: The filling rubber (203) has a hollow interior. The left wall of the filling rubber (203) is fixed with a connecting part (204) in a circumferential array. The left end of the connecting part (204) is fixed with a protrusion (205). The protrusion (205) and the connecting part (204) are both located inside the buffer rubber (202).

5. The embedded concrete pipe with buffer pad according to claim 1, characterized in that: Both the upper step (301a) and the lower step (304a) are arc-shaped, and the horizontal planes of the multiple upper steps (301a) decrease sequentially from left to right.

6. The embedded concrete pipe with buffer pad according to claim 1, characterized in that: The lower wall of the lower leveling block (304) is fixedly provided with a mounting plate (302), and screws (305) are provided through the front and rear sides of the mounting plate (302). A moving block (306) is fixedly provided at the lower end of the screws (305), and a nut (305a) is connected to the upper part of the mounting plate (302) corresponding to the external thread of the screws (305).

7. A pre-embedded hoisting concrete pipe with a buffer pad according to claim 6, characterized in that: The movable block (306) is arranged in the shape of a frustum. An expansion tube (303) is sleeved on the outside of the movable block (306). A rectangular groove (303a) is formed in a circumferential array on the lower side of the expansion tube (303). A protrusion (306a) that is fixed to the movable block (306) is provided in the internal gap of the rectangular groove (303a). A positioning rod (303b) inserted into the mounting plate (302) is fixed in a circumferential array on the upper wall of the expansion tube (303).