Three-back backfill compaction device

Through the combination of bolt limit structure and bolt pressure sensor, the problem of loose connections of the three-back backfill compaction device is solved, which achieves more stable connections and reduces ground wear, and improves the reliability of the equipment.

CN223061569UActive Publication Date: 2025-07-04THE THIRD ENG CO LTD OF CCCC SECOND HIGHWAY ENG BUREAU +1
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Patent Information

Application Number
CN202422349940.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-26
Publication Date
2025-07-04
Estimated Expiration
2034-09-26

AI Technical Summary

Technical Problem

The existing three-back backfilling compaction device has low firmness when the connector is fixed, which is easy to loosen, affecting normal use.

Method used

The bolt limit structure and bolt pressure sensor are adopted to threaded connections between bolts and thread grooves, and the fastening pressure is monitored in real time with the bolt pressure sensor and the display to ensure the firmness of the connection parts and reduce ground wear through wear-resistant components.

Benefits of technology

Improves the firmness of the connectors and devices, avoids loosening, enhances the stability of the equipment, and reduces wear to the ground.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a three-back backfill compacting device, which relates to the technical field of compacting devices, and comprises a connecting piece, the bottom of the connecting piece is connected with a dismounting assembly, the dismounting assembly comprises a connecting frame, the bottom of the connecting frame is connected with a base, the outer surfaces of the two sides of the connecting frame are connected with fixing blocks, and the fixing blocks are connected with the connecting frame. A limiting groove is formed in the fixing block, a first bolt is inserted into the limiting groove, and a limiting block is connected to the surface of the first bolt; during installation, a connecting piece of equipment can be inserted into the connecting frame and then fixed and tightened through the first bolt, in the fixing process, the fastening pressure can be displayed in real time through the bolt pressure sensor and the displayer, monitoring and adjusting are facilitated, the firmness of the connecting piece and the device is improved, and the service life of the device is prolonged. The problem that normal use is affected due to the fact that an existing device is prone to loosening in a fixing mode is solved.
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Description

Technical Field

[0001] The utility model relates to the technical field of compaction devices, in particular to a three-back filling compaction device. Background Art

[0002] The three-back filling of abutments, culvert abutments and retaining walls is a weak link in highway construction and a key control point in highway construction. The quality of the backfilling will directly affect the project quality.

[0003] For example, the publication number: CN211472463U, a three-back filling compaction device suitable for narrow terrains. The compaction device includes a compaction base, symmetrically distributed engaging members are provided on the compaction base, symmetrically distributed limit fixing members are provided on the compaction base, and a connecting member is provided on the compaction base. The compaction device of this utility model guides the engaging members through the guiding surface. Through the guiding groove, the engaging columns are engaged in the engaging holes, and the ramming device is fixed to the compaction base. During disassembly, rotate and remove the engaging members through the limit fixing members, which is convenient for installation and disassembly; the compaction base is mechanically compacted by driving the ramming device, avoiding the phenomena of vehicle jumping at the bridgehead and culvert tail and the settlement of the retaining wall platform back road surface caused by insufficient three-back filling and compaction degree, ensuring the stability of the highway subgrade, ensuring the safety and comfort of vehicle driving, and extending the service life of the highway.

[0004] This patent can avoid the phenomena of vehicle jumping at the bridgehead and culvert tail and the settlement of the retaining wall platform back road surface caused by insufficient three-back filling and compaction degree, and ensure the stability of the highway subgrade. However, when the existing device is fixed to the connecting member of the compaction equipment, it is only fixed by clamping, and the firmness is relatively low. It is easy to loosen after long-term use, thus affecting the normal use. Content of the Utility Model

[0005] The utility model mainly provides a device that can be firmly connected to the connecting member.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: a three-back filling compaction device, including a connecting member, a disassembly and assembly component is connected to the bottom of the connecting member. The disassembly and assembly component includes a connecting frame, a base is connected to the bottom of the connecting frame, fixing blocks are connected to the outer surfaces of both sides of the connecting frame, a limiting groove is opened inside the fixing block, a first bolt is inserted into the limiting groove, a limiting block is connected to the surface of the first bolt, a bolt pressure sensor is sleeved on the surface of the first bolt close to the fixing block, and threaded grooves are opened on the outer surfaces of both sides of the connecting member.

[0007] Preferably, the outer surface of the connecting member is attached to the inner wall of the connecting frame, and a sliding connection is formed between the connecting member and the connecting frame. The base can contact the ground or bear the pressure during the compaction process, and the connecting frame is the output end of the ramming equipment.

[0008] Preferably, the position and size of the limiting block match those of the limiting groove. The first bolt is threadedly connected to the threaded groove. The limiting groove and the limiting block are used to limit the position of the first bolt to prevent the first bolt from being lost after disassembly.

[0009] Preferably, the bolt pressure sensor is electrically connected to the display. The electrical connection between the bolt pressure sensor and the display can display the tightening pressure in real time, facilitating monitoring and adjustment.

[0010] Preferably, a wear-resistant assembly is connected to the bottom of the base. The wear-resistant assembly includes four groups of second bolts, and the four groups of second bolts are respectively inserted into the four corners of the inner wall of the base. The wear-resistant assembly can directly contact the ground, increasing wear resistance and reducing the wear of the device on the ground.

[0011] Preferably, a rubber pad is connected to the bottom surface of the base. Threaded holes are provided at the four corners of the surface of the rubber pad. The second bolt passes through the base and is threadedly connected to the threaded hole. The threaded connection of the second bolt can realize the replacement of the rubber pad.

[0012] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0013] 1. In the present utility model, during installation, the connecting piece of the device can be inserted into the connecting frame and then fixed and tightened by the first bolt. During the fixing process, the tightening pressure can be displayed in real time through the bolt pressure sensor and the display, facilitating monitoring and adjustment, improving the firmness between the connecting piece and the device, and avoiding the problem that the fixing method of the existing device is prone to loosening, thereby affecting normal use.

[0014] 2. In the present utility model, the rubber pad can directly contact the ground, increasing wear resistance and reducing the wear of the device on the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional view of a three-back backfill compaction device proposed by the present utility model;

[0016] Figure 2 is another three-dimensional view of a three-back backfill compaction device proposed by the present utility model from another angle;

[0017] Figure 3 is an exploded three-dimensional view of a three-back backfill compaction device proposed by the present utility model;

[0018] Figure 4 is a sectional three-dimensional view of a fixing block of a three-back backfill compaction device proposed by the present utility model;

[0019] Figure 5The present utility model provides an exploded perspective view of a rubber pad of a three-backfill compaction device.

[0020] Legend: 1. Connecting piece; 2. Disassembly and assembly component; 201. Connecting frame; 202. Base; 203. Fixed block; 204. Limiting groove; 205. First bolt; 206. Limiting block; 207. Threaded groove; 208. Bolt pressure sensor; 209. Display; 3. Wear-resistant component; 301. Second bolt; 302. Rubber pad; 303. Threaded hole. Detailed implementation manner

[0021] In order to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the following further describes the present utility model with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0022] In the following description, many specific details are set forth to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.

[0023] Please refer to Figures 1-4 , the present utility model provides a technical solution: a three-backfill compaction device, including a connecting piece 1, the bottom of the connecting piece 1 is connected with a disassembly and assembly component 2, the disassembly and assembly component 2 includes a connecting frame 201, the bottom of the connecting frame 201 is connected with a base 202, both outer surfaces of the connecting frame 201 are connected with fixed blocks 203, the inside of the fixed block 203 is provided with a limiting groove 204, a first bolt 205 is inserted into the limiting groove 204, a limiting block 206 is connected to the surface of the first bolt 205, a bolt pressure sensor 208 is sleeved on the surface of the first bolt 205 close to the fixed block 203, and threaded grooves 207 are provided on both outer surfaces of the connecting piece 1.

[0024] As Figure 1 and Figures 2-3 shown, the outer surface of the connecting piece 1 fits with the inner wall of the connecting frame 201, a sliding connection is formed between the connecting piece 1 and the connecting frame 201, the base 202 can contact the ground or bear the pressure during the compaction process, and the connecting frame 201 is the output end of the ramming device.

[0025] As Figure 3 and Figure 4 shown, the position and size of the limiting block 206 match the position and size of the limiting groove 204, a threaded connection is formed between the first bolt 205 and the threaded groove 207, and the limiting groove 204 and the limiting block 206 are used to limit the position of the first bolt 205 to prevent the first bolt 205 from being lost after disassembly.

[0026] As Figure 3 and Figure 4 shown, an electrical connection is formed between the bolt pressure sensor 208 and the display 209. The electrical connection between the bolt pressure sensor 208 and the display 209 can display the tightening pressure in real time, facilitating monitoring and adjustment.

[0027] As Figure 1 and Figure 5 shown, a wear-resistant component 3 is connected to the bottom of the base 202. The wear-resistant component 3 includes four groups of second bolts 301, and the four groups of second bolts 301 are respectively inserted at the four corners of the inner wall of the base 202. The wear-resistant component 3 can directly contact the ground, increasing wear resistance and reducing the wear of the device on the ground.

[0028] As Figure 1 and Figure 5 shown, a rubber pad 302 is connected to the bottom surface of the base 202. Threaded holes 303 are provided at the four corners of the surface of the rubber pad 302. The second bolts 301 penetrate through the base 202 and form a threaded connection with the threaded holes 303. The threaded connection of the second bolts 301 can realize the replacement of the rubber pad 302.

[0029] Usage method and working principle of the present device: During installation, the connecting member 1 of the device can be inserted into the connecting frame 201. After being completely inserted, the first bolt 205 can be rotated, so that the first bolt 205 can perform a threaded rotation with the threaded groove 207 and drive the limiting block 206 to move within the limiting block 206. At the same time as rotating the first bolt 205, the bolt pressure sensor 208 will also be squeezed. During the fixing process, the tightening pressure can be displayed in real time through the bolt pressure sensor 208 and the display 209, facilitating monitoring and adjustment to prevent the first bolt 205 from falling off due to insufficient pressure, improving the firmness of the connecting member 1 and the device, and avoiding the problem that the fixing method of the existing device is prone to looseness, thereby affecting normal use. After being fixed to the connecting member 1, the rubber pad 302 can be attached to the bottom of the base 202, and the second bolts 301 can penetrate through the base 202 and be fixed to the threaded holes 303. The rubber pad 302 can directly contact the ground, increasing wear resistance and reducing the wear of the device on the ground and the base 202.

[0030] The above is only a preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical content of the technical solution of the present invention, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A three-backfill compaction device, comprising a connecting member (1), characterized in that: A disassembly and assembly component (2) is connected to the bottom of the connecting piece (1); The disassembly and assembly component (2) includes a connecting frame (201). A base (202) is connected to the bottom of the connecting frame (201). Fixed blocks (203) are connected to the outer surfaces on both sides of the connecting frame (201). A limiting groove (204) is formed inside the fixed block (203). A first bolt (205) is inserted into the limiting groove (204). A limiting block (206) is connected to the surface of the first bolt (205). A bolt pressure sensor (208) is sleeved on the surface of the first bolt (205) close to the fixed block (203). Threaded grooves (207) are formed on the outer surfaces on both sides of the connecting piece (1).

2. The three-backfill compaction device according to claim 1, characterized in that: The outer surface of the connecting piece (1) is attached to the inner wall of the connecting frame (201), and a sliding connection is formed between the connecting piece (1) and the connecting frame (201).

3. The three-backfill compaction device according to claim 2, characterized in that: The position and size of the limiting block (206) match the position and size of the limiting groove (204), and a threaded connection is formed between the first bolt (205) and the threaded groove (207).

4. A three-backfill compaction device according to claim 3, characterized in that: The bolt pressure sensor (208) is electrically connected to the display (209).

5. The three-backfill compaction device according to claim 1, wherein: A wear-resistant component (3) is connected to the bottom of the base (202). The wear-resistant component (3) includes four groups of second bolts (301), and the four groups of second bolts (301) are respectively inserted into the four corners of the inner wall of the base (202).

6. The three-backfill compaction device according to claim 5, characterized in that: A rubber pad (302) is connected to the bottom surface of the base (202). Threaded holes (303) are formed at the four corners of the surface of the rubber pad (302). The second bolts (301) penetrate through the base (202) and form a threaded connection with the threaded holes (303).

Citation Information

Patent Citations

  • Three-back backfill compaction device suitable for narrow terrains

    CN211472463U