Fixing device for preventing jacking pipe from tilting

Abstract

The utility model discloses a fixing device for preventing a jacking pipe from tilting, which comprises a support frame, the top of the support frame is fixedly mounted on a pressing block, a sliding frame is arranged in the middle of the bottom of the support frame in a sliding manner, two symmetrically distributed arc-shaped clamping blocks are arranged at the bottom of the sliding frame, and jacking pipe bodies are arranged on two sides of the two arc-shaped clamping blocks. And a fixing structure for preventing the jacking pipe bodies from tilting is arranged between the two jacking pipe bodies and located at the bottoms of the two arc-shaped clamping blocks, the fixing structure comprises a splicing ring, and jacking pipe supporting extension rings are fixedly installed on the left side and the right side of the splicing ring correspondingly. According to the fixing device for preventing the jacking pipe from tilting, the two jacking pipe bodies are supported in the middle through the splicing rings and the jacking pipe supporting extension rings, the pressure bearing effect is achieved through steel profiles of the splicing rings, and therefore the situation that the two jacking pipe bodies tilt after being stressed can be avoided; and the two arc-shaped clamping blocks and the pressing blocks are used for applying pressure to the intersection of the two jacking pipe bodies, so that the upwarp effect is avoided when the foundation pit applies pressure.

Description

Technical Field

[0001] The utility model relates to the technical field of fixing devices, in particular to a fixing device for preventing a top pipe from tilting. Background Art

[0002] Pipe jacking is a trenchless construction method, a technique for burying pipes with minimal or no excavation. Pipe jacking involves using the jacking force generated by jacking equipment within a working pit to overcome friction between the pipe and the surrounding soil, pushing the pipe into the soil according to the designed slope, and removing the soil. After one section of pipe is pushed into the soil, the second section is lowered and pushed forward. Using the thrust of the main jacking cylinder and other components such as the pipe and relay rooms, the tool pipe or tunnel boring machine is pushed from the working pit through the soil and hoisted into the receiving pit. The pipeline is then buried between the two pits, following the tool pipe or tunnel boring machine.

[0003] At present, the device for fixing two jacking pipes usually directly places the jacking pipes on the sliding track for splicing, and then squeezes the jacking pipes through the thrust of the jacking cylinder to achieve the thrust effect. However, this method will generate a large impact force when the jacking cylinder applies pressure to the two jacking pipes, which can easily cause the joint between the two jacking pipes to warp, thereby affecting the construction of the jacking pipe. Therefore, a fixing device for preventing the jacking pipe from warping is proposed to solve the problem of warping between the two jacking pipes. Utility Model Content

[0004] The purpose of the present invention is to provide a fixing device for preventing a top pipe from tilting, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a fixing device for preventing a top pipe from tilting, comprising a support frame, the top of the support frame being fixedly mounted on a pressure block, a slide being slidably provided at the middle of the bottom of the support frame, the bottom of the slide being provided with two symmetrically distributed arc-shaped clamping blocks, a clearance hole being provided at the bottom of the slide, and a driving structure for driving the two arc-shaped clamping blocks to move relative to each other being provided at the top of the slide;

[0006] A top pipe body is provided on both sides of the two arc-shaped clamping blocks, and a fixing structure for preventing the top pipe body from tilting is provided in the middle of the two top pipe bodies and at the bottom of the two arc-shaped clamping blocks. The fixing structure includes a splicing ring, and a top pipe support extension ring is fixedly installed on the left and right sides of the splicing ring. A number of plug holes are provided on the left and right side surfaces of the splicing ring. A limiting block is fixedly installed on the arc surface of the two arc-shaped clamping blocks on one side close to the splicing ring. Two limiting holes are provided on the outer surface of the splicing ring, and a number of plug blocks are provided on the side of the two top pipe bodies close to the splicing ring.

[0007] On the basis of the above technical scheme, the utility model still can make improvement as follows.

[0008] Preferably, the bottom of the support frame (1) is provided with two sliding grooves, and the top of the sliding frame (3) is provided with two sliding blocks, and the two sliding blocks on the sliding frame (3) slide on the two sliding grooves of the support frame (1) respectively.

[0009] Preferably, the plurality of insertion blocks (10) on the two top pipe bodies (5) are respectively inserted into the plurality of insertion holes (602) for limiting.

[0010] Preferably, the driving structure (4) comprises a driving motor (401), a bidirectional threaded rod (402) and a moving block (403), the driving motor (401) is fixedly installed on the square of the sliding frame (3), the bidirectional threaded rod (402) is movably installed on the top of the sliding frame (3) through a bearing, the number of the moving block (403) is two, the two moving blocks (403) are sleeved on the outer surfaces of the bidirectional threaded rod (402), and the bottoms of the two moving blocks (403) penetrate through the accommodation holes (9) and are fixedly connected with the tops of the two arc-shaped clamping blocks (7), and the bottom of the sliding frame (3) is provided with four limiting grooves (404).

[0011] Preferably, the two moving blocks (403) are in threaded connection with the bidirectional threaded rod (402), the tops of the two arc-shaped clamping blocks (7) are fixedly installed with two sliding blocks respectively, and the four sliding blocks are slidably installed in the four limiting grooves (404).

[0012] Preferably, the limiting blocks (8) on the two arc-shaped clamping blocks (7) are respectively inserted into the two insertion holes (602) on the splicing ring (601) for limiting, the bottom of the top pipe body (5) is provided with a sliding rail for driving the top pipe body (5), and one side of one of the top pipe bodies (5) is further provided with a cylinder for providing thrust to drive the top pipe body (5) to move on the sliding rail.

[0013] Beneficial effects

[0014] Compared with the prior art, the technical scheme of the application has the following beneficial technical effects: the fixing device for preventing the top pipe from being raised supports two top pipe bodies in the middle through the splicing ring and the top pipe support extension ring, and avoids the two top pipe bodies from being raised after being subjected to pressure by playing a pressure bearing role through the steel profile of the splicing ring, and simultaneously, the two top pipe bodies are pressed at the intersection through the two arc-shaped clamping blocks and the pressing block to avoid the effect of being raised when the foundation pit is pressed. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1This is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the top-sectional structure of the utility model;

[0017] Figure 3 This is an enlarged structural diagram of the fixing device in the present utility model;

[0018] Figure 4 This is a schematic diagram of the enlarged structure of the plug on the top pipe in the utility model;

[0019] Figure 5 It is an enlarged schematic diagram of the splicing ring structure in the present utility model.

[0020] In the figure: 1. Support frame; 2. Pressure block; 3. Slide; 4. Driving structure; 401. Driving motor; 402. Bidirectional threaded rod; 403. Moving block; 404. Limiting groove; 5. Jacking pipe body; 6. Fixed structure; 601. Splicing ring; 602. Insertion hole; 603. Jacking pipe support extension ring; 7. Arc clamping block; 8. Limiting block; 9. Clearance hole; 10. Insertion block; 11. Limiting hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figures 1-5 The utility model provides a technical solution: it includes a support frame 1, the top of the support frame 1 is fixedly installed on the pressure block 2, a slide 3 is slidably provided at the middle of the bottom of the support frame 1, the bottom of the support frame 1 is provided with two slide grooves, the top of the slide 3 is provided with two sliders, the two sliders on the slide 3 slide on the two slide grooves of the support frame 1 respectively, the bottom of the slide 3 is provided with two symmetrically distributed arc-shaped clamping blocks 7, the bottom of the slide 3 is provided with a clearance hole 9, and the top of the slide 3 is provided with a driving structure 4 for driving the two arc-shaped clamping blocks 7 to move relative to each other;

[0023] A top tube body 5 is provided on both sides of the two arc-shaped clamping blocks 7. A fixing structure 6 for preventing the top tube body 5 from tilting is provided in the middle of the two top tube bodies 5 and at the bottom of the two arc-shaped clamping blocks 7. The fixing structure 6 includes a splicing ring 601. Top tube support extension rings 603 are fixedly installed on the left and right sides of the splicing ring 601. A number of sockets 602 are provided on the left and right side surfaces of the splicing ring 601. A limiting block 8 is fixedly installed on the arc surface of the two arc-shaped clamping blocks 7 on one side close to the splicing ring 601. Two limiting holes 11 are provided on the outer surface of the splicing ring 601. A number of plug-in blocks 10 are provided on the side of the two top tube bodies 5 close to the splicing ring 601. The several plug-in blocks 10 on the two top tube bodies 5 are respectively inserted into the several sockets 602 for limiting.

[0024] The bottom of the support frame 1 is provided with a sliding track that drives the jacking pipe body 5 to slide from left to right, and the right side of the support frame 1 is provided with a main jacking cylinder that provides thrust. The splicing ring 601 and the jacking pipe support extension ring 603 are steel profiles that bear the role of fixing and pressure.

[0025] When a fixing device is needed to prevent the jacking pipe from tilting up, the jacking pipe body 5 can be placed on the sliding track, and then the jacking pipe body 5 is pushed by the main jacking oil cylinder, and then the jacking pipe support extension ring 603 on the splicing ring 601 of the fixing structure 6 is connected to the inner tube of the jacking pipe body 5, and then another jacking pipe body 5 is connected to the jacking pipe support extension ring 603 on the splicing ring 601 in the same way to clamp the splicing ring 601 in the middle. At the same time, when the two jacking pipe bodies 5 and the splicing ring 601 are docked, it is also necessary to The insert blocks 10 are respectively inserted into the inside of the insertion holes 602 to limit the position to avoid displacement. After completion, the two arc-shaped clamping blocks 7 can be driven to move closer to the middle through the driving structure 4, so that the two limiting blocks on the arc-shaped clamping blocks 7 are inserted into the inside of the limiting holes 11 to limit the tops of the two jacking pipe bodies 5. Finally, the main jacking cylinder pushes the jacking pipe body 5 to complete the jacking construction. The thrust borne by the two arc-shaped clamping blocks 7 and the splicing ring 601 will prevent the two jacking pipe bodies 5 from tilting after being under pressure.

[0026] The driving structure 4 includes a driving motor 401, a bidirectional threaded rod 402 and a moving block 403. The driving motor 401 is fixedly installed on the square of the slide 3. The bidirectional threaded rod 402 is movably installed on the top of the slide 3 through a bearing. There are two moving blocks 403. The two moving blocks 403 are both sleeved on the outer surface of the bidirectional threaded rod 402, and the bottoms of the two moving blocks 403 pass through the makeshift hole 9 and are fixedly connected to the tops of the two arc-shaped clamping blocks 7. The two moving blocks 403 are both threadedly connected to the bidirectional threaded rod 402. Four limiting grooves 404 are provided at the bottom of the slide 3. Two sliders are fixedly installed on the tops of the two arc-shaped clamping blocks 7, and the four sliders are slidably installed with the four limiting grooves 404 respectively.

[0027] When it is necessary to push the two arc-shaped clamping blocks 7 closer to the splicing ring 601, the bidirectional threaded rod 402 can be driven to rotate by the driving motor 401, so that the two moving blocks 403 threadedly connected to the bidirectional threaded rod 402 drive the two arc-shaped clamping blocks 7 to move relative or oppositely on the clearance hole 9 under the limitation of the limiting groove 404 and the slider, so that the two arc-shaped clamping blocks 7 are fixed in the middle of the splicing ring 601.

[0028] The limit blocks 8 on the two arc-shaped clamping blocks 7 are respectively inserted into the two sockets 602 on the splicing ring 601 for limiting the position. The bottom of the jacking tube body 5 is provided with a sliding track for driving the jacking tube body 5, providing a transmission structure for the movement of the jacking tube body 5, and a cylinder providing thrust is also provided on one side of one of the jacking tube bodies 5 to push the jacking tube body 5 to move on the sliding track.

[0029] Working principle: The main jacking cylinder applies thrust to drive the two jacking pipe bodies 5 and the fixed structure 6 to be spliced ​​together on the sliding track. At the same time, two arc-shaped clamping blocks 7 are used to limit and fix the two jacking pipe bodies 5 and the fixed structure 6 to prevent the two jacking pipe bodies 5 from tilting due to the force applied by the main jacking cylinder. The two arc-shaped clamping blocks 7 and the fixed structure 6 can not only ensure that the jacking pipe bodies 5 are not tilted, but also provide good protection for the intersection of the two jacking pipe bodies 5.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixing device for preventing a top pipe from tilting, comprising a support frame (1), wherein the top of the support frame (1) is fixedly mounted on a pressure block (2), a slide frame (3) is slidably arranged at the middle of the bottom of the support frame (1), two symmetrically distributed arc-shaped clamping blocks (7) are arranged at the bottom of the slide frame (3), a clearance hole (9) is opened at the bottom of the slide frame (3), and a driving structure (4) for driving the two arc-shaped clamping blocks (7) to move relative to each other is arranged at the top of the slide frame (3); The two arc-shaped clamping blocks (7) are both provided with a jacking pipe body (5), which is characterized in that: A fixing structure (6) for preventing the top tube body (5) from tilting is provided between the two top tube bodies (5) and at the bottom of the two arc-shaped clamping blocks (7). The fixing structure (6) includes a splicing ring (601). Top tube support extension rings (603) are fixedly installed on the left and right sides of the splicing ring (601). A plurality of plug holes (602) are provided on the left and right side surfaces of the splicing ring (601). A limiting block (8) is fixedly installed on the arc surface of the two arc-shaped clamping blocks (7) on one side close to the splicing ring (601). Two limiting holes (11) are provided on the outer surface of the splicing ring (601). A plurality of plug blocks (10) are provided on the side of the two top tube bodies (5) close to the splicing ring (601).

2. The fixing device for preventing the top pipe from tilting according to claim 1, characterized in that: Two slide grooves are provided at the bottom of the support frame (1), and two sliders are provided at the top of the slider (3). The two sliders on the slider (3) slide on the two slide grooves of the support frame (1) respectively.

3. The fixing device for preventing the top pipe from tilting according to claim 1, characterized in that: The plurality of inserting blocks (10) on the two jacking pipe bodies (5) are respectively inserted into the plurality of inserting holes (602) for positioning.

4. The fixing device for preventing a top pipe from tilting according to claim 1, characterized in that: The driving structure (4) comprises a driving motor (401), a bidirectional threaded rod (402) and a moving block (403); the driving motor (401) is fixedly mounted on the square of the slide (3); the bidirectional threaded rod (402) is movably mounted on the top of the slide (3) through a bearing; there are two moving blocks (403); both moving blocks (403) are sleeved on the outer surface of the bidirectional threaded rod (402); and the bottoms of the two moving blocks (403) pass through the clearance hole (9) and are fixedly connected to the tops of the two arc-shaped clamping blocks (7); and four limiting grooves (404) are provided at the bottom of the slide (3).

5. The fixing device for preventing the top pipe from tilting according to claim 4, characterized in that: The two moving blocks (403) are both threadedly connected to the bidirectional threaded rod (402), and two sliding blocks are fixedly installed on the top of the two arc-shaped clamping blocks (7), and the four sliding blocks are respectively slidably installed with the four limiting grooves (404).

6. The fixing device for preventing a jacking pipe from tilting according to claim 1, characterized in that: The limiting blocks (8) on the two arc-shaped clamping blocks (7) are respectively inserted into the two sockets (602) on the splicing ring (601) for limiting, and the bottom of the top tube body (5) is provided with a sliding track for driving the top tube body (5), and a cylinder providing thrust is also provided on one side of one of the top tube bodies (5) to push the top tube body (5) to move on the sliding track.

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