Force transfer steel fitting for pipe jacking construction

Abstract

The utility model relates to the technical field of pipe jacking construction fittings, in particular to a force transmission steel fitting for pipe jacking construction, which comprises a steel force transmission fitting main body, four groups of fixed stiffening plates are assembled on the surface of one side end of the outer periphery of the steel force transmission fitting main body and the surface of one side end of the inner periphery of the steel force transmission fitting main body, the surface of one side end of the periphery of the steel force transmission accessory body is connected with a steel pipe body located between the fixed stiffening plates in a matched mode. Under the normal condition, the steel pipe main body for the large-diameter pipe jacking adopts the K-shaped groove, and when the machining of the K-shaped groove cannot be realized due to the limitation of external conditions or the current steel pipe main body is machined into the V-shaped groove, the remedy can be carried out and the V-shaped groove can be continuously used, so that the condition that the V-shaped groove is damaged in the pipe jacking process can be effectively reduced, and the working efficiency is improved. The effective force transmission area of the steel pipe is increased through the force transmission steel accessories, the pipe jacking construction requirement is met, operation is safe and convenient, and resource waste or energy consumption is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe jacking construction fittings, in particular to a force transmission steel fitting for pipe jacking construction. Background Technique

[0002] Pipe jacking construction is a trenchless construction method, which is a pipeline laying construction technology with little or no excavation. The pipe jacking method is to generate thrust by jacking equipment in the working pit, overcome the friction between the pipeline and the surrounding soil, jack the pipeline into the soil according to the designed slope, and transport the soil away. After one section of the pipe is jacked into the soil layer, the second section of the pipe is lowered and the jacking continues. Its principle is to use the thrust of the main jacking cylinder and between the pipelines and the relay jacks, etc., to push the tool pipe or tunneling machine from the working pit through the soil layer and into the receiving pit for hoisting. The pipeline follows behind the tool pipe or tunneling machine and is buried between the two pits; Patent No. CN201822029009.1 discloses a rubber force transmission gasket for pipe jacking construction. By setting a braided layer, the braided layer is alternately woven by warp bundles and weft bundles, and then the warp bundles and weft bundles are alternately twisted by No. 1 rubber wires and No. 2 rubber wires, which can increase the stretchable length in the warp and weft directions of the braided layer, and further increase the elasticity of the length and width of the rubber force transmission gasket. When in use, it is convenient for the worker to tighten the rubber force transmission gasket and wrap it outside the segment, thereby improving the sealing effect and increasing the waterproof effect; however, during the steel pipe jacking construction process, for small-diameter pipelines, the welds are preferably V-shaped grooves, and for large-diameter pipelines, K-shaped grooves are preferably used. When the processing of K-shaped grooves cannot be realized due to external conditions, the V-shaped groove has a small stress surface, and the allowable jacking force of the steel pipe cannot meet the jacking force requirements for pipe jacking, and it is easy to cause damage at the interface of the steel pipe with the V-shaped groove during jacking force. For this reason, we propose a force transmission steel fitting for pipe jacking construction. Content of the Utility Model

[0003] Aiming at the problems in the prior art, the utility model provides a force transmission steel fitting for pipe jacking construction.

[0004] The technical solution adopted by the utility model to solve its technical problems is a force transmission steel fitting for pipe jacking construction, including a steel force transmission fitting main body. Fixed stiffening plates are assembled on the outer peripheral side end surface and the inner peripheral side end surface of the steel force transmission fitting main body, and there are four groups of fixed stiffening plates. A steel pipe main body located between the fixed stiffening plates is fitted and connected to the outer peripheral side end surface of the steel force transmission fitting main body. A circumferential ribbed plate for auxiliary support is assembled inside the steel force transmission fitting main body.

[0005] By adopting the above technical solution, when using the force-transfer steel fitting during the pipe jacking construction, one end of the steel force-transfer fitting body can be fitted and connected with the jacking end of the steel pipe body. And with the cooperation of multiple groups of fixed stiffening plates, it can be connected to the pipe orifice of the steel pipe to be jacked, which is convenient for reducing the situation that the pipe orifice is damaged due to displacement caused by uneven force during the pipe jacking process. At the same time, the circumferential ribbed plate makes the circumferential force more uniform, enabling the force-transfer steel fitting to evenly transmit the jacking force to the steel pipe body to be jacked. Under normal circumstances, the steel pipe body for large-diameter pipe jacking adopts a K-shaped groove. When it is restricted by external conditions and the processing of the K-shaped groove cannot be realized, or the existing steel pipe body has been processed into a V-shaped groove, remedies can be made and it can still be used continuously, which can effectively reduce the situation that the V-shaped groove is damaged during the pipe jacking process. And by using the force-transfer steel fitting, the effective force-transfer area of the steel pipe is increased, meeting the requirements of pipe jacking construction, with safe and convenient operation, and avoiding resource waste or energy consumption.

[0006] Specifically, multiple groups of the fixed stiffening plates are evenly distributed on the outer surface and the inner surface of the steel force-transfer fitting body.

[0007] By adopting the above technical solution, the fixed stiffening plates evenly distributed on the inner circumference and the outer circumference of the steel force-transfer fitting body can correspond to and cooperate with each other, enabling the steel pipe body and the steel force-transfer fitting to be more stably connected to each other, and reducing the situation of dislocation between the two during subsequent jacking force.

[0008] Compared with the prior art, the present utility model has the following beneficial effects:

[0009] The technical solution of this application, through the design of the steel force-transfer fitting body, fixed stiffening plates, steel pipe body and circumferential ribbed plate, when using the force-transfer steel fitting during the pipe jacking construction, one end of the steel force-transfer fitting body can be fitted and connected with the jacking end of the steel pipe body. And with the cooperation of multiple groups of fixed stiffening plates, it can be connected to the pipe orifice of the steel pipe to be jacked, which is convenient for reducing the situation that the pipe orifice is damaged due to displacement caused by uneven force during the pipe jacking process. At the same time, the circumferential ribbed plate makes the circumferential force more uniform, enabling the force-transfer steel fitting to evenly transmit the jacking force to the steel pipe body to be jacked. Under normal circumstances, the steel pipe body for large-diameter pipe jacking adopts a K-shaped groove. When it is restricted by external conditions and the processing of the K-shaped groove cannot be realized, or the existing steel pipe body has been processed into a V-shaped groove, remedies can be made and it can still be used continuously, which can effectively reduce the situation that the V-shaped groove is damaged during the pipe jacking process. And by using the force-transfer steel fitting, the effective force-transfer area of the steel pipe is increased, meeting the requirements of pipe jacking construction, with safe and convenient operation, and avoiding resource waste or energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The following further illustrates the present utility model in conjunction with the drawings and embodiments.

[0011] Figure 1 Cross-sectional schematic view of the connection structure between the steel force transfer fitting main body and the steel pipe main body of the present utility model;

[0012] Figure 2 Cross-sectional schematic view of the main structure of the steel force transfer fitting of the present utility model;

[0013] In the figure: 1. Steel force transfer fitting main body; 2. Fixed stiffening plate; 3. Steel pipe main body; 4. Circumferential ribbed plate. Specific implementation manner

[0014] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation manners.

[0015] Please refer to Figure 1-2 , an embodiment of the present utility model provides a technical solution: a force transfer steel fitting for pipe jacking construction, including a steel force transfer fitting main body 1. Fixed stiffening plates 2 are assembled on both the outer peripheral side end surface and the inner peripheral side end surface of the steel force transfer fitting main body 1, and there are four groups of fixed stiffening plates 2. A steel pipe main body 3 located between the fixed stiffening plates 2 is fitted and connected to the outer peripheral side end surface of the steel force transfer fitting main body 1. A circumferential ribbed plate 4 for auxiliary support is assembled on the inner periphery of the steel force transfer fitting main body 1.

[0016] During use, when the force transfer steel fitting is used during the pipe jacking construction process, one end of the steel force transfer fitting main body 1 can be fitted and connected to the jacking end of the steel pipe main body 3. And with the cooperation of multiple groups of fixed stiffening plates 2, it can be connected to the pipe orifice of the steel pipe main body 3 to be jacked, which is convenient for reducing the situation that the pipe orifice is damaged due to uneven force and displacement during the pipe jacking process. At the same time, the circumferential ribbed plate 4 makes the circumferential force more uniform, so that the jacking force of the force transfer steel fitting can be evenly transmitted to the steel pipe main body 3 to be jacked. And under normal circumstances, the steel pipe main body 3 for large-diameter pipe jacking adopts a K-shaped groove. However, when external conditions are restricted and it is impossible to realize the processing of the K-shaped groove or the existing steel pipe main body 3 has been processed into a V-shaped groove, it can be remedied and continue to be used, which can effectively reduce the situation that the V-shaped groove is damaged during the pipe jacking process. And by using the force transfer steel fitting, the effective force transfer area of the steel pipe is increased, meeting the requirements of pipe jacking construction, with safe and convenient operation, and avoiding resource waste or energy consumption.

[0017] As Figure 1 and Figure 2 shown, multiple groups of fixed stiffening plates 2 are evenly distributed on the outer side end surface and the inner side end surface of the steel force transfer fitting main body 1.

[0018] During use, the fixed stiffening plates 2 evenly distributed on the inner and outer circumferences of the steel force-transferring fitting body 1 can correspond to and cooperate with each other, enabling the steel pipe body 3 and the steel force-transferring fitting to be more stably connected to each other and reducing the dislocation between the two during subsequent jacking force.

[0019] The working principle and usage process of the present utility model: During use, first install the corresponding structural components in appropriate positions. When using the force-transferring steel fitting during the pipe jacking construction, one side end of the steel force-transferring fitting body 1 can be fitted and connected with the jacking end of the steel pipe body 3. And with the cooperation of multiple groups of fixed stiffening plates 2, it can be connected to the pipe orifice of the steel pipe body 3 to be jacked, facilitating the reduction of the situation where the pipe orifice is damaged due to uneven force and displacement during the pipe jacking process. Then, the jacking structural component can be in contact with the pipe jacking contact surface of the steel force-transferring fitting body 1 and carry out the jacking work, facilitating the pipe jacking construction. At the same time, the circumferential ribbed plate 4 makes the circumferential force more uniform, enabling the jacking force of the force-transferring steel fitting to be evenly transmitted to the steel pipe body 3 to be jacked. The two cooperate with each other, enabling the jacking force received by the steel force-transferring fitting body 1 to be evenly transmitted to the steel pipe body 3, protecting the V-shaped groove of the steel pipe body 3, and completing the pipe jacking construction. And under normal circumstances, the steel pipe body 3 for large-diameter pipe jacking adopts a K-shaped groove. When it is restricted by external conditions and the K-shaped groove processing cannot be realized or the existing steel pipe body 3 has been processed into a V-shaped groove, remedies can be made and it can continue to be used, effectively reducing the situation where the V-shaped groove is damaged during the pipe jacking process. And by using the force-transferring steel fitting to increase the effective force-transferring area of the steel pipe, it meets the requirements of pipe jacking construction, is safe and convenient to operate, and avoids resource waste or energy consumption.

[0020] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of protection required by the present utility model. The scope of protection required by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A force transmission steel fitting for pipe jacking construction, characterized in that It includes a steel force-transfer fitting main body (1). Fixed stiffening plates (2) are assembled on both the outer peripheral side end surface and the inner peripheral side end surface of the steel force-transfer fitting main body (1), and there are four groups of the fixed stiffening plates (2). A steel pipe main body (3) located between the fixed stiffening plates (2) is fitted and connected to the outer peripheral side end surface of the steel force-transfer fitting main body (1). A circumferential ribbed plate (4) for auxiliary support is assembled on the inner circumference of the steel force-transfer fitting main body (1).

2. The force transmission steel fitting for pipe jacking construction according to claim 1, wherein Multiple groups of the fixed stiffening plates (2) are evenly distributed on the outer side end surface and the inner side end surface of the steel force-transfer fitting main body (1).

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