Pipe jacking equipment for pipeline laying

Abstract

The utility model relates to the technical field of pipeline laying, in particular to pipe jacking equipment for pipeline laying, which comprises a pipe jacking device and a plug adding assembly arranged between a conveying pipe and the pipe jacking device, the pipe jacking device comprises a fixed seat, at least one hydraulic push rod is arranged on one side, facing the plug adding assembly, of the fixed seat, and the hydraulic push rod is provided with a mounting end and an output shaft. An output shaft of the hydraulic push rod is fixedly connected with a top block, the outer side of the output shaft of the hydraulic push rod is sleeved with an organ-type sheath, and a crack flaring is formed in the bottom of the organ-type sheath. The organ type sheath sleeves the outer side of the hydraulic push rod output shaft, is used for protecting the hydraulic push rod output shaft, can extend along with extension of the hydraulic push rod output shaft, can prevent mud in a pipe pit from splashing on the hydraulic push rod output shaft, prolongs the service life of the hydraulic push rod, and is convenient to replace and maintain due to the detachable mounting mode of the organ type sheath.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline laying, in particular to a pipe jacking device for pipeline laying. Background Technique

[0002] Pipe jacking by a pipe jacking machine is an underground pipeline construction method. It does not require excavation of the surface layer and can cross roads, railways, ground buildings, etc. The pipes are laid underground through the pipe jacking machine, and it also has the advantages of less impact on the surrounding environment and small construction site.

[0003] For example, the Chinese patent with the application number CN202323276851.2 discloses an automatic pipe jacking device, which includes a telescopic cylinder and a pre-buried pipe. A sealing block is fixedly installed at one end of the pre-buried pipe. The cylinder body of the telescopic cylinder is slidably arranged inside the pre-buried pipe. An avoidance groove is opened on the inner wall of the pre-buried pipe for avoiding the pipeline of the telescopic cylinder. A top block is fixedly installed at the end of the piston rod of the telescopic cylinder away from the sealing block. This pipe jacking device has the effect of improving the construction speed. However, the telescopic cylinder needs to be fixed in the pipe pit in advance. During the pipe jacking process, the piston rod of the telescopic rod will continuously stretch and retract. Due to the influence of the construction environment, the silt in the pipe pit will splash on the outside of the telescopic cylinder, affecting the cooperation between the piston rod and the piston cylinder on the telescopic cylinder and the service life of the telescopic cylinder. Content of the Utility Model

[0004] In view of the above problems, the utility model proposes a pipe jacking device for pipeline laying to solve the disadvantages of the existing pipe jacking devices that during the pipe jacking process, the piston rod of the telescopic rod will continuously stretch and retract, and due to the influence of the construction environment, the silt in the pipe pit will splash on the outside of the telescopic cylinder, affecting the cooperation between the piston rod and the piston cylinder on the telescopic cylinder.

[0005] To achieve the purpose of the utility model, the utility model is realized through the following technical solutions: A pipe jacking device for pipeline laying includes a pipe jacking machine and a plugging block assembly arranged between the conveying pipe and the pipe jacking machine;

[0006] The pipe jacking machine includes a fixed seat. At least one hydraulic push rod is arranged on one side of the fixed seat facing the plugging block assembly. The hydraulic push rod has an installation end and an output shaft. The installation end of the hydraulic push rod is fixedly connected to the fixed seat, and the output shaft of the hydraulic push rod is fixedly connected to a top block;

[0007] An accordion sheath is sleeved outside the output shaft of the hydraulic push rod. One end of the accordion sheath is detachably connected to the top block, the other end of the accordion sheath is detachably connected to the installation end of the hydraulic push rod, and a crack expansion opening is opened at the bottom of the accordion sheath.

[0008] A further improvement lies in that: the bellows sheath is provided with a first hanging ring and a second hanging ring, the first hanging ring and the second hanging ring are fixedly connected to the left and right ends of the bellows sheath, a rubber sleeve ring is fixedly connected to the installation end of the hydraulic push rod, the rubber sleeve ring is sleeved on the outer side of the output shaft of the hydraulic push rod, and bolt connecting pieces for fixing the first hanging ring and the second hanging ring are arranged on the top block and the rubber sleeve ring.

[0009] A further improvement lies in that: the bolt connecting pieces include a plurality of first bolt ears and a plurality of second bolt ears, each first bolt ear is fixedly connected to the outer side walls of the top block and the rubber sleeve ring, each second bolt ear is fixedly connected to the outer side walls of the first hanging ring and the second hanging ring, each first bolt ear corresponds to each second bolt ear, and fastening bolts for fixing the second bolt ears are assembled on the first bolt ears.

[0010] A further improvement lies in that: the plugging block assembly includes a top plug and a plurality of plugging blocks, a protruding portion is arranged on one side of the top plug facing the conveying pipe, the protruding portion is fixedly connected to the top plug, and the protruding portion is inserted into the conveying pipe and is slidably connected to the inner side wall of the conveying pipe.

[0011] A further improvement lies in that: at least one first card slot is opened on one side of the top plug away from the protruding portion, at least one first card protrusion is arranged on one side of the plugging block close to the top plug, at least one second card slot is opened on one side of the plugging block away from the top plug, and the second card slot is in plug-in fit with the first card slot and the first card protrusion.

[0012] A further improvement lies in that: a second card protrusion is arranged at one end of the top block away from the hydraulic push rod, the second card protrusion is fixedly connected to the top block, and the second card protrusion is in movable fit with the second card slot.

[0013] A further improvement lies in that: a second hanging ear is arranged at the upper end of the plugging block, the second hanging ear is fixedly connected to the plugging block, a first hanging ear is arranged at the upper end of the top plug, and the first hanging ear is fixedly connected to the top plug.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] The bellows sheath is sleeved on the outer side of the output shaft of the hydraulic push rod, which is used to protect the output shaft of the hydraulic push rod, can extend together with the extension of the output shaft of the hydraulic push rod, can prevent the mud in the pipe pit from splashing on the output shaft of the hydraulic push rod, and improves the service life of the hydraulic push rod;

[0016] The detachable installation method of the bellows sheath is convenient for replacement and maintenance. Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 It is a structural diagram of the fixed seat in the utility model.

[0019] Figure 2 It is a structural diagram of the top plug and the plugging block in the utility model.

[0020] Figure 3 It is a structural diagram of the hydraulic push rod in the utility model.

[0021] Figure 4 It is a structural diagram of the bellows sheath in the utility model.

[0022] Wherein: 1, conveying pipe; 2, top plug; 21, first hanging ear; 22, protruding part; 23, first card slot; 3, plugging block; 31, second hanging ear; 32, first card projection; 33, second card slot; 4, fixed seat; 5, hydraulic push rod; 51, top block; 52, second card projection; 53, rubber sleeve ring; 54, first bolt ear; 6, bellows sheath; 61, first hanging ring; 62, second hanging ring; 64, second bolt ear; 7, crack expansion opening. Specific embodiments

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of them. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0024] According to Figure 1 、 2 、3, and 4, a pipe jacking device for pipeline laying is proposed in this embodiment, including a pipe jacking machine and a plugging block assembly arranged between the conveying pipe 1 and the pipe jacking machine;

[0025] The pipe jacking machine includes a fixed seat 4. At least one hydraulic push rod 5 is provided on one side of the fixed seat 4 facing the plugging block assembly. The hydraulic push rod 5 has an installation end and an output shaft. The installation end of the hydraulic push rod 5 is fixedly connected to the fixed seat 4, and the output shaft of the hydraulic push rod 5 is fixedly connected to a top block 51;

[0026] The fixed seat 4 is fixed at the bottom of the pit. The hydraulic push rod 5 pushes the conveying pipe 1 through the top block 51, and the conveying pipe 1 is pushed into the pipe hole. As the conveying pipe 1 continuously penetrates, the plugging block assembly can be placed between the conveying pipe 1 and the top block 51 to increase the pushing distance of the conveying pipe 1.

[0027] Specifically, a bellows sheath 6 is sleeved on the outer side of the output shaft of the hydraulic push rod 5. One end of the bellows sheath 6 is detachably connected to the top block 51, the other end of the bellows sheath 6 is detachably connected to the installation end of the hydraulic push rod 5, and a crack expansion opening 7 is provided at the bottom of the bellows sheath 6.

[0028] The bellows sheath 6 is sleeved on the outer side of the output shaft of the hydraulic push rod 5 to protect the output shaft of the hydraulic push rod 5. It can extend together with the extension of the output shaft of the hydraulic push rod 5, and can prevent the mud in the pipe pit from splashing on the output shaft of the hydraulic push rod 5, improving the service life of the hydraulic push rod 5. The detachable installation method of the bellows sheath 6 is convenient for replacement and maintenance.

[0029] It is worth further explaining that the bellows sheath 6 is provided with a first hanging ring 61 and a second hanging ring 62. The first hanging ring 61 and the second hanging ring 62 are fixedly connected to the left and right ends of the bellows sheath 6. A rubber sleeve ring 53 is fixedly connected to the installation end of the hydraulic push rod 5. The rubber sleeve ring 53 is sleeved on the outer side of the output shaft of the hydraulic push rod 5. The top block 51 and the rubber sleeve ring 53 are provided with bolt connecting pieces for fixing the first hanging ring 61 and the second hanging ring 62. When removing the bellows sheath 6 from the output shaft of the hydraulic push rod 5, it is only necessary to release the fixation between the bolt connecting piece and the first hanging ring 61 and the top block 51, and the second hanging ring 62 and the rubber sleeve ring 53. The bellows sheath 6 can be completely removed from the output shaft of the hydraulic push rod 5 through the crack expansion opening 7 at its bottom.

[0030] Regarding the bolt connecting piece:

[0031] The bolt connecting piece includes a plurality of first bolt ears 54 and a plurality of second bolt ears 64. Each first bolt ear 54 is fixedly connected to the outer side walls of the top block 51 and the rubber sleeve ring 53. Each second bolt ear 64 is fixedly connected to the outer side walls of the first hanging ring 61 and the second hanging ring 62. Each first bolt ear 54 corresponds to each second bolt ear 64, and a fastening bolt for fixing the second bolt ear 64 is assembled on the first bolt ear 54.

[0032] Unscrew the fastening bolt at the connection between the first bolt ear 54 and the second bolt ear 64 from the second bolt ear 64, and the fixation between the first hanging ring 61 and the top block 51, and the second hanging ring 62 and the rubber sleeve ring 53 can be released. The bellows sheath 6 is convenient for disassembly, replacement and installation.

[0033] Regarding the plugging block assembly:

[0034] The plugging block assembly includes a top plug 2 and multiple plugging blocks 3. On one side of the top plug 2 facing the conveying pipe 1, there is a protruding portion 22. The protruding portion 22 is fixedly connected to the top plug 2. The protruding portion 22 is inserted into the conveying pipe 1 and is slidably connected to the inner side wall of the conveying pipe 1. The top plug 2 is assembled at the pipe orifice of the conveying pipe 1 and is used to support the hydraulic push rod 5 to push the conveying pipe 1. The first ear 21 on the top plug 2 is inserted into the inner side of the pipe orifice of the conveying pipe 1 to play a limiting role. According to the pushing depth of the conveying pipe 1, plugging blocks 3 can be added between the top plug 2 and the hydraulic push rod 5 to increase the pushing depth of the conveying pipe 1.

[0035] In a preferred solution, at least one first card slot 23 is provided on the side of the top plug 2 away from the protruding portion 22. At least one first card projection 32 is provided on the side of the plugging block 3 close to the top plug 2. At least one second card slot 33 is provided on the side of the plugging block 3 away from the top plug 2. The second card slot 33 is in plugging fit with the first card slot 23 and the first card projection 32.

[0036] The advantage of such a design is that when the top plug 2 and the plugging blocks 3 are stacked or multiple plugging blocks 3 are stacked, the first card projection 32 on the plugging block 3 will be inserted into the first card slot 23 on the top plug 2, and the first card projection 32 on the adjacent plugging block 3 will also be inserted into the second card slot 33 provided on the back of the previous plugging block 3. The first card projection 32 cooperates with the second card slot 33 and the first card slot 23 to limit the top plug 2 and the plugging blocks 3, preventing the plugging blocks 3 from sliding out between the top plug 2 and the hydraulic push rod 5 when the hydraulic push rod 5 jacks the pipe, and improving the operation safety.

[0037] In a preferred solution, a second card projection 52 is provided at the end of the top block 51 away from the hydraulic push rod 5. The second card projection 52 is fixedly connected to the top block 51. The second card projection 52 is in movable fit with the second card slot 33. Similarly, when the hydraulic push rod 5 pushes the plugging block 3 or the top plug 2, the second card projection 52 on the top block 51 can also be inserted into the first card slot 23 on the top plug 2 and the second card slot 33 on the plugging block 3, improving the safety of jacking the pipe of the top plug 2 and the plugging blocks 3.

[0038] In a preferred solution, a second ear 31 is provided at the upper end of the plugging block 3. The second ear 31 is fixedly connected to the plugging block 3. A first ear 21 is provided at the upper end of the top plug 2. The first ear 21 is fixedly connected to the top plug 2. The lifting device outside the pipe pit is fixed to the second ear 31 and the first card projection 32 at the top of the plugging block 3 and the top plug 2 through a cable, and the position of the top plug 2 and each plugging block 3 in the pipe pit is adjusted through the lifting device during the operation.

[0039] The working principle of this application:

[0040] The fixed seat 4 is fixed at the bottom of the pit. The hydraulic push rod 5 pushes the conveying pipe 1 through the top block 51, and the conveying pipe 1 is pushed into the pipe hole. As the conveying pipe 1 goes deeper, the plugging block assembly can be placed between the conveying pipe 1 and the top block 51 to increase the pushing distance of the conveying pipe 1.

[0041] The bellows sheath 6 is sleeved outside the output shaft of the hydraulic push rod 5 and can extend together with the extension of the output shaft of the hydraulic push rod 5, preventing the mud in the pipe pit from splashing on the output shaft of the hydraulic push rod 5, protecting the output shaft of the hydraulic push rod 5, and increasing the service life of the hydraulic push rod 5. The detachable installation method of the bellows sheath 6 is convenient for replacement and maintenance.

[0042] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. Unless otherwise clearly specified and defined, the terms "installation", "connection" and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0043] The above are only the specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A pipe jacking device for pipeline laying, comprising a pipe jacking machine and a plugging block assembly arranged between a conveying pipe (1) and the pipe jacking machine, characterized in that: The pipe jacking machine includes a fixed seat (4). At least one hydraulic push rod (5) is provided on one side of the fixed seat (4) facing the plugging block assembly. The hydraulic push rod (5) has an installation end and an output shaft. The installation end of the hydraulic push rod (5) is fixedly connected to the fixed seat (4), and a top block (51) is fixedly connected to the output shaft of the hydraulic push rod (5); An accordion sheath (6) is sleeved outside the output shaft of the hydraulic push rod (5). One end of the accordion sheath (6) is detachably connected to the top block (51), and the other end of the accordion sheath (6) is detachably connected to the installation end of the hydraulic push rod (5). A crack expansion opening (7) is formed at the bottom of the accordion sheath (6).

2. The pipe jacking equipment for pipeline laying according to claim 1, characterized in that: The accordion sheath (6) is provided with a first hanging ring (61) and a second hanging ring (62). The first hanging ring (61) and the second hanging ring (62) are fixedly connected to the left and right ends of the accordion sheath (6). A rubber sleeve ring (53) is fixedly connected to the installation end of the hydraulic push rod (5). The rubber sleeve ring (53) is sleeved outside the output shaft of the hydraulic push rod (5). Bolt connecting pieces are provided on the top block (51) and the rubber sleeve ring (53) for fixing the first hanging ring (61) and the second hanging ring (62).

3. The pipe jacking equipment for pipeline laying according to claim 2, characterized in that: The bolt connecting piece includes a plurality of first bolt ears (54) and a plurality of second bolt ears (64). Each of the first bolt ears (54) is fixedly connected to the outer side walls of the top block (51) and the rubber sleeve ring (53). Each of the second bolt ears (64) is fixedly connected to the outer side walls of the first hanging ring (61) and the second hanging ring (62). Each of the first bolt ears (54) corresponds to each of the second bolt ears (64). A fastening bolt for fixing the second bolt ear (64) is assembled on the first bolt ear (54).

4. The pipe jacking equipment for pipeline laying according to claim 1, wherein: The plugging block assembly includes a top plug (2) and a plurality of plugging blocks (3). A protruding portion (22) is provided on one side of the top plug (2) facing the conveying pipe (1). The protruding portion (22) is fixedly connected to the top plug (2). The protruding portion (22) is inserted into the conveying pipe (1) and is slidably connected to the inner side wall of the conveying pipe (1).

5. The pipe jacking equipment for pipeline laying according to claim 4, characterized in that: At least one first card slot (23) is formed on one side of the top plug (2) away from the protruding portion (22). At least one first card protrusion (32) is provided on one side of the plugging block (3) close to the top plug (2). At least one second card slot (33) is formed on one side of the plugging block (3) away from the top plug (2). The second card slot (33) is in plugging and matching with the first card slot (23) and the first card protrusion (32).

6. The pipe jacking equipment for pipeline laying according to claim 5, characterized in that: A second card protrusion (52) is provided at one end of the top block (51) away from the hydraulic push rod (5). The second card protrusion (52) is fixedly connected to the top block (51). The second card protrusion (52) is in movable cooperation with the second card slot (33).

7. The pipe jacking equipment for pipeline laying according to claim 4, characterized in that: The upper end of the plug-in block (3) is provided with a second hanging ear (31), the second hanging ear (31) is fixedly connected to the plug-in block (3), the upper end of the plug (2) is provided with a first hanging ear (21), and the first hanging ear (21) is fixedly connected to the plug (2).

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