Expanding structure of tube push bench

Abstract

The invention relates to a diameter expanding structure of a pipe jacking machine, which comprises a main body structure, a plurality of pipe jacking devices and a plurality of pipe jacking devices, wherein an embedded track is formed at the top of the main body structure; the arc-shaped frame is arranged in the embedded track in a sliding manner; the working plate is arranged at the end part of the main body structure; the hydraulic rod is arranged in the working plate in a length-adjustable mode, a plurality of layers of movable gear plates are arranged on the hydraulic rod in a nested mode, and the width of the hydraulic rod is adjusted by adjusting the number of the movable gear plates; the hydraulic rod is arranged on the working plate in a sliding mode, the expanding pipe is arranged in the working plate in a sliding mode and arranged opposite to the hydraulic rod, a part of the expanding pipe extends to the position above the embedded track to form an expanding section, and the expanding section is provided with a plurality of nested pipes in a nested mode corresponding to the multiple layers of movable gear plates. And the movable gear plate pushes and abuts against the nesting pipe at the corresponding position, the structure is simple, and use is convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe jacking construction, and particularly to a pipe jacking machine diameter expansion structure. Background Art

[0002] Pipe jacking technology is a non-excavation pipe laying construction technology used in municipal construction. Its advantages are that it has little or no impact on the surrounding environment, requires a small construction site, produces little noise, and can operate deep underground.

[0003] Generally, the outer diameter of a commonly used pipe jacking machine is fixed, and one pipe jacking machine can only be applicable to one specification of pipe. The cost invested in producing one pipe jacking machine is high and the economy is poor. The existing pipe jacking machine diameter expander has poor functionality and lacks a certain degree of flexibility. It is not convenient to adjust during the diameter expansion process; different sizes of diameter expanders may need to be replaced when dealing with pipes of different diameters, resulting in low work efficiency; it lacks detailed diameter expansion process control and safety protection measures, which may affect the diameter expansion accuracy and operation safety. Summary of the Invention

[0004] The purpose of the present invention is to overcome the defects of the prior art and provide a pipe jacking machine diameter expansion structure. By adjusting the number of the movable gear plates to increase the width of the hydraulic rod, the hydraulic rod can push against the corresponding width of the embedded sleeve, so as to perform pipe jacking on pipes of different sizes.

[0005] The technical solution to achieve the above purpose is a pipe jacking machine diameter expansion structure, which is characterized by including:

[0006] A main body structure, on the top of which an embedded track is formed;

[0007] An arc-shaped frame slidably arranged in the embedded track;

[0008] A working plate arranged at the end of the main body structure;

[0009] A hydraulic rod with adjustable length arranged in the working plate, on which several layers of movable gear plates with different sizes are nested. The movable gear plates are nested on the hydraulic rod from small to large, and the width of the hydraulic rod is adjusted by adjusting the number of the movable gear plates; and

[0010] A diameter expansion pipe slidably arranged in the working plate and opposite to the hydraulic rod. A part of the diameter expansion pipe extends above the embedded track to form a diameter expansion section. Several embedded sleeves are nested on the diameter expansion section corresponding to several layers of movable gear plates. The embedded sleeves are nested on the diameter expansion section from small to large. By starting the hydraulic rod, the movable gear plates push against the corresponding embedded sleeves.

[0011] Further, a first protective plate is provided on the side of the main body structure, and a clamping bracket is provided on the side of the first protective plate close to the embedded track.

[0012] Further, the clamping bracket is arc-shaped.

[0013] Further, an elastic reinforcement pad is provided on the side of the clamping bracket away from the protective plate.

[0014] Further, a connecting spring is provided between the elastic clamping pad and the clamping bracket.

[0015] Further, a second protective plate is provided on the side of the main body structure away from the first protective plate.

[0016] Further, a plurality of second protective plates are provided, and the plurality of second protective plates are spaced apart and arranged on the side of the main body structure.

[0017] Further, a sliding groove is formed at the top of the main body structure, and the embedded track is installed in the sliding groove.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] By adjusting the number of the movable gear plates to increase the width of the hydraulic rod, so that the hydraulic rod can push against the embedded sleeve of the corresponding width, thereby performing pipe jacking on pipes of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of an expanding diameter structure of a pipe jacking machine;

[0021] Figure 2 is Figure 1 the enlarged effect diagram at A in

[0022] Figure 3 is Figure 1 the enlarged effect diagram at B in

[0023] Figure 4 is a schematic structural diagram of a hydraulic rod of an expanding diameter structure of a pipe jacking machine;

[0024] Legend: 1. Main body structure; 2. Embedded track; 3. Arc-shaped bracket; 4. Second protective plate; 5. First protective plate; 6. Clamping bracket; 7. Elastic reinforcement pad; 8. Working plate; 9. Embedded sleeve; 13. Movable gear plate; 14. Hydraulic rod; 15. Guide rail; 16. Moving groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The present invention will be further described below with reference to the drawings and specific embodiments.

[0026] Refer toFigure 1 , a pipe jacking machine diameter expansion structure, characterized by including: a main body structure 1, an embedded track 2 is formed at the top of the main body structure 1; an arc-shaped frame 3 slidably arranged in the embedded track 2; a working plate 8 arranged at the end of the main body structure 1; a hydraulic rod 14 with adjustable length arranged in the working plate 8, and several layers of movable gear plates 13 with different sizes are nested on the hydraulic rod 14, and the movable gear plates 13 are nested on the hydraulic rod 14 from small to large in sequence, and the width of the hydraulic rod 14 is adjusted by adjusting the number of the movable gear plates 13; and a diameter expansion pipe slidably arranged in the working plate 8 and oppositely arranged with the hydraulic rod 14, a part of the diameter expansion pipe extends above the embedded track 2 to form a diameter expansion section, and several embedded sleeves 9 are nested on the diameter expansion section corresponding to several layers of movable gear plates 13, and the embedded sleeves 9 are nested on the diameter expansion section from small to large in sequence, and by starting the hydraulic rod 14, the movable gear plates 13 are made to push against the corresponding embedded sleeves 9.

[0027] In the present invention, a preferred implementation manner is: place the pipeline on the arc-shaped frame 3, determine the diameter of the pipeline, adjust the number of the movable gear plates 13, the diameter after the superposition of several movable gear plates 13 is adapted to the diameter of the pipeline, start the hydraulic rod 14 to push out the movable gear plates 13, and push against the corresponding embedded sleeves 9 and the diameter expansion pipe to move towards the pipeline until the pipeline is jacked out.

[0028] Furthermore, a clamping block is formed on the rod body of the hydraulic rod 14 and on the side of the movable gear plate 13 away from the hydraulic rod 14, and a clamping groove is formed on the side of the movable gear plate 13 close to the hydraulic rod 14 corresponding to the clamping block. By rotating the hydraulic rod 14 or the movable gear plate 13, the clamping block is clamped in the clamping groove, so that during the pushing process of the hydraulic rod 14, the movable gear plate 13 can be driven to move.

[0029] Furthermore, the movable gear plate 13 is composed of a gear and a pushing plate fixed at the end of the gear. The gear is sleeved on the hydraulic rod 14, a clamping groove is formed on the side of the gear away from the pushing plate, a clamping block is formed on the pushing plate, the size of the gear nested on the movable gear plate 13 is adapted to the pushing plate, and a clamping groove is formed on the gear corresponding to the clamping block.

[0030] Furthermore, a pushing space is formed on the working plate 8 corresponding to the hydraulic rod 14, the movable gear plate 13 and the diameter expansion pipe. The hydraulic rod 14 and the movable gear plate 13 are slidably arranged in the pushing space. A moving groove 16 is formed at the top of the working plate 8, and the moving groove 16 is communicated with the pushing space. A guide rail 15 is slidably arranged in the moving groove 16. During use, the guide rail 15 can be placed below and attached to the top of the movable gear plate 13, so as to prevent the movable gear plate 13 from shaking.

[0031] Furthermore, a first protection plate 5 is arranged on the side part of the main body structure 1, and a clamping frame 6 is arranged on one side of the first protection plate 5 close to the embedded track 2. Preferably, the pipeline is clamped by the clamping frame 6 to prevent the pipeline from shaking.

[0032] Furthermore, the clamping frame 6 is arc-shaped. Preferably, the arc part of the clamping frame 6 is adapted to the pipeline.

[0033] Furthermore, an elastic reinforcement pad 7 is arranged on one side of the clamping frame 6 away from the protection plate. Through the elastic reinforcement pad 7, the clamping effect on the pipeline is increased, so as to prevent the pipeline from shaking during pushing.

[0034] Furthermore, a connecting spring is arranged between the elastic clamping pad and the clamping frame 6. During use, the pipeline is placed in the clamping frame 6, the connecting spring is compressed, and an elastic force is applied to the elastic clamping pad, so that the elastic clamping pad clamps the pipeline.

[0035] Furthermore, the center positions of the clamping frame 6 and the arc-shaped frame 3 are the same.

[0036] Furthermore, a second protection plate 4 is arranged on one side of the main body structure 1 away from the first protection plate 5. The second protection plate 4 can prevent the pipeline from rolling during pushing.

[0037] Furthermore, there are multiple second protection plates 4, and the multiple second protection plates 4 are arranged at intervals on the side part of the main body structure 1.

[0038] Furthermore, a sliding groove is formed at the top of the main body structure 1, and the embedded track 2 is installed in the sliding groove.

[0039] The following describes the use process of an expanding diameter structure of a pipe jacking machine according to the present invention.

[0040] Place the pipeline on the arc-shaped frame 3, determine the diameter of the pipeline, adjust the number of the movable gear plates 13, the diameter after stacking a plurality of movable gear plates 13 is adapted to the diameter of the pipeline, start the hydraulic rod 14 to push out the movable gear plates 13, and push the corresponding embedded sleeve 9 and the expanding pipe towards the pipeline until the pipeline is jacked out.

[0041] The present invention has been described in detail above in combination with the embodiments with reference to the drawings. Those of ordinary skill in the art can make various variations to the present invention according to the above description. Therefore, certain details in the embodiments should not limit the present invention, and the protection scope of the present invention will be defined by the scope of the appended claims.

Claims

1. A pipe jacking machine diameter expansion structure, characterized in that Comprising: A main body structure, an embedded track is formed at the top of the main body structure; An arc-shaped frame slidably arranged in the embedded track; A working plate arranged at the end of the main body structure; A hydraulic rod with adjustable length arranged in the working plate, several layers of movable gear plates with different sizes are nested on the hydraulic rod, and the movable gear plates are nested on the hydraulic rod from small to large, and the width of the hydraulic rod is adjusted by adjusting the number of the movable gear plates; And An expanding tube slidably arranged in the working plate and oppositely arranged with the hydraulic rod, a part of the expanding tube extends above the embedded track to form an expanding section, several embedding tubes are nested on the expanding section corresponding to several layers of movable gear plates, the embedding tubes are nested on the expanding section from small to large, and by starting the hydraulic rod, the movable gear plates are made to push against the embedding tubes at corresponding positions.

2. The diameter-expanding structure of a pipe jacking machine according to claim 1, characterized in that: A first protective plate is arranged on the side of the main body structure, and a clamping bracket is arranged on one side of the first protective plate close to the embedded track.

3. The expanding diameter structure of a pipe jacking machine according to claim 2, wherein: The clamping bracket is arc-shaped.

4. The expanding diameter structure of a pipe jacking machine according to claim 3, characterized in that: An elastic reinforcement pad is arranged on one side of the clamping bracket away from the protective plate.

5. The expanding diameter structure of a pipe jacking machine according to claim 4, characterized in that: A connecting spring is arranged between the elastic clamping pad and the clamping bracket.

6. The expanding diameter structure of a pipe jacking machine according to claim 2, characterized in that: A second protective plate is arranged on the side of the main body structure away from the first protective plate.

7. The diameter-expanding structure of a pipe jacking machine according to claim 6, characterized in that: There are multiple second protective plates, and the multiple second protective plates are arranged at intervals on the side of the main body structure.

8. The expanding diameter structure of a pipe jacking machine according to claim 1, characterized in that: A sliding groove is formed at the top of the main body structure, and the embedded track is installed in the sliding groove.

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