Non-excavation short pipe replacement and repair mechanism

Abstract

The utility model discloses a non-excavation short pipe replacement and repair mechanism. The non-excavation short pipe replacement and repair mechanism comprises a traction assembly, a repair pipeline, a short pipe and a clamping assembly. The short pipe is arranged in the repairing pipeline; the traction assembly is installed at the inlet end of the repairing pipeline and used for pushing the short pipe to move in the repairing pipeline. The pipeline replacement device is reasonable in structure, the short pipe is dragged to the replacement position of the repaired pipeline through the traction assembly, the pipeline is automatically replaced through the clamping assembly, constructors are prevented from entering the pipeline to replace the pipeline, the construction efficiency is improved, and the construction cost is reduced. And the efficiency of replacing and repairing the pipeline can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of trenchless short pipe replacement, and particularly relates to a trenchless short pipe replacement and repair mechanism. Background Technique

[0002] Trenchless pipe replacement is a construction method for replacing or maintaining underground pipes without damaging the ground surface by using modern tools and technical means. Compared with the traditional excavation-type pipe repair / replacement method, it has the advantages of short construction time, little traffic impact, and less environmental pollution, thus ensuring the safety of construction personnel and road safety to the greatest extent and simplifying the construction difficulty.

[0003] During trenchless short pipe replacement, it is usually necessary for specialized construction personnel to go down to the damaged pipe to fix the new and old pipes. The method of construction personnel operating inside the pipe has certain safety problems to a certain extent, and the time spent on manual short pipe replacement is also relatively long. In view of the above problems, a solution is proposed below. Content of the Utility Model

[0004] The purpose of the utility model is to provide a trenchless short pipe replacement and repair mechanism, which can effectively solve the problems of long manual replacement time and lack of safety guarantee by dragging the short pipe into the replacement end of the repair pipe through the traction component for self-replacement.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions:

[0006] A trenchless short pipe replacement and repair mechanism includes: a traction component, a repair pipe, a short pipe, and a clamping component; the short pipe is arranged in the repair pipe; the traction component is installed at one end of the through inlet of the repair pipe and is used to push the short pipe to move in the repair pipe; the clamping component is installed on the short pipe and is used to clamp the short pipe and the repair pipe when the short pipe moves to the repair part of the repair pipe.

[0007] Preferably, a groove is formed on the short pipe, and the clamping component is installed in the groove inside the short pipe.

[0008] Preferably, the clamping component includes a retaining ring, a pushing cylinder, and a limiting rod. The retaining ring is arranged in the groove, the pushing cylinder is arranged on the traction component, the limiting rod is arranged on the output end of the pushing cylinder, and the limiting rod is in clamping fit with the limiting hole on the retaining ring.

[0009] Preferably, the traction component includes a hydraulic press, a pushing rod, and a pushing plate. The hydraulic press is arranged at the through inlet of the repair pipe, the pushing rod is arranged on the output end of the hydraulic press, and the pushing plate is installed on the pushing rod.

[0010] Preferably, the push plate is circular, and the diameter of the push plate is less than or equal to the inner diameter of the repair pipeline.

[0011] Preferably, the outer diameter of the short pipe is equal to the inner diameter of the repair pipeline.

[0012] Beneficial effects: The traction assembly will drive the push plate and the push rod to push the short pipe to the damaged part of the repair pipeline. The push cylinder drives the suction rod to retract, and the limit rod releases the limit on the limit hole of the retaining ring, so that the retaining ring can rely on the elastic force to expand the short pipe and the repair pipeline, so that the short pipe can automatically perform the repair operation in the repair pipeline, avoiding construction workers from entering the repair pipeline for manual replacement and fixation, improving the construction safety of construction workers during construction operations, and using the traction assembly to replace the short pipe in the repair pipeline saves the time of traditional conventional replacement. Description of the Drawings

[0013] Figure 1 is a schematic structural diagram of the embodiment;

[0014] Figure 2 is for the embodiment to show Figure 1 of the sectional view;

[0015] Figure 3 is a schematic diagram of the clamping structure for the embodiment to show the observation from another perspective;

[0016] Figure 4 is for the embodiment to show Figure 2 of the enlarged view in the direction A.

[0017] Reference numerals: 1, traction assembly; 2, repair pipeline; 3, short pipe; 4, clamping assembly; 5, groove; 6, retaining ring; 7, push cylinder; 8, limit rod; 9, hydraulic press; 10, push rod; 11, push plate. Detailed Embodiment

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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, and thus cannot be construed as a limitation on the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0020] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "connection" 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 utility model can be understood according to specific situations.

[0021] In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0022] This embodiment provides a trenchless short pipe replacement and repair mechanism, as shown in Figures 1 to 4 shown, including: a traction assembly 1, a repair pipeline 2, a short pipe 3, and a clamping assembly 4; the short pipe 3 is arranged in the repair pipeline; the traction assembly 1 is installed at one end of the through inlet of the repair pipeline 2 and is used to push the short pipe 3 to move in the repair pipeline 2; the clamping assembly 4 is installed on the short pipe 3 and is used to clamp the short pipe 3 and the repair pipeline 2 when the short pipe 3 moves to the repair part of the repair pipeline 2.

[0023] Adopting the above basic structure, a groove 5 is formed on the short pipe 3, and the clamping assembly 4 is installed in the groove 5 inside the short pipe 3.

[0024] Adopting the above basic structure, the clamping assembly 4 includes a retaining ring 6, a pushing cylinder 7, and a limiting rod 8. The retaining ring 6 is arranged in the groove 5, the pushing cylinder 7 is arranged on the traction assembly 1, the limiting rod 8 is arranged on the output end of the pushing cylinder 7, and the limiting rod 8 is in snap-fit connection with the limiting hole on the retaining ring 6.

[0025] When the construction worker replaces the short pipe 3, he holds a controller in his hand, which is used to control the opening and closing of the push cylinder 7. The controller and the push cylinder 7 are connected by electrical signals. There are three buttons on the controller. When the construction worker turns on button 1 of the controller, the push cylinder 7 will then lift and push the limit rod 8; when the construction worker turns on button 2 of the control, the push cylinder 7 drives the limit rod 8 to retract. Of course, there is also button 3 on the controller, which serves as an emergency stop.

[0026] The width of the groove 5 just matches the width of the retaining ring 6, reducing the deviation of the retaining ring 6 in the short tube 3. The setting of the groove 5 makes it easy for the retaining ring 6 to be clamped in the short tube 3, preventing the retaining ring 6 from falling off when the short tube 3 slides in the repair pipe 2. After the cylinder 7 is pushed up, the limit rod 8 is located on the limit hole of the retaining ring 6, so that the retaining ring 6 can be just stuck in the groove 5; when the short tube 3 moves to the replacement position, the cylinder 7 drives the push rod 10 to retract, so that the elastic force of the retaining ring 6 itself pushes up the short tube 3 and the repair pipe 2, thereby improving the fastening force between the repair pipe 2 and the short tube 3, reducing the gap between the short tube 3 and the repair pipe 2, and preventing the circulating water from leaking from the gap between the short tube 3 and the repair pipe 2.

[0027] Using the above basic structure, the traction assembly 1 includes an oil hydraulic press 9, a push rod 10 and a push plate 11. The oil hydraulic press 9 is arranged at the inlet of the repair pipeline 2, the push rod 10 is arranged on the output end of the oil hydraulic press 9, and the push plate 11 is installed on the push rod 10.

[0028] When one end of the traction assembly 1 is pushed by the hydraulic press 9 to facilitate the short tube 3 to slide in the repaired pipeline 2, the short tube 3 can be driven to move in the repaired pipeline 2 by the single-side traction assembly 1 alone; if the short tube 3 moves far or has difficulty in moving at the damaged part of the repaired pipeline 2, a set of pulling equipment can be added to the other end of the traction assembly 1 to be used for pulling on one side of the push plate 11 and the push rod, so as to improve the progress and efficiency of the movement of the short tube 3 in the repaired pipeline 2;

[0029] The lifting device is relatively common in the prior art, so the description will not be repeated with drawings in this specification. The lifting device includes a bracket, a winding part and a rope. One end of the rope is connected to one end of the push rod 10. The winding part can drive the rope to wind up and unwind. The bracket is installed along the other input port of the repair pipe 2, opposite to the entrance of the push rod 10 and the push plate 11 into the repair pipe 2. The rope is pulled through the winding part throughout the process, driving the push rod 10 and the push plate 11 to accelerate their movement in the repair pipe 2.

[0030] The rewinding section can adopt a rewinding roller and a servo motor. After the servo motor is driven, the output end of the servo motor drives the rewinding roller to rotate clockwise, and the rope winds around the rewinding roller. One end of the rope is connected to the push rod 10 and is accelerated to be pulled, so as to accelerate the movement of the short pipe 3 in the repair pipe 2; when the output shaft of the servo motor rotates counterclockwise, the rope on the rewinding roller is in the wire releasing state, and the hydraulic press 9 just drives the push rod 10 and the push plate 11 to retract and push out the repair pipe 2, thus realizing the rewinding operation.

[0031] With the above basic structure, the push plate 11 is circular, and the diameter of the push plate 11 is less than or equal to the inner diameter of the repair pipe 2. The short pipe 3 slides in the repair pipe 2, and the push plate 11 can move along the sliding direction of the short pipe 3, which is convenient for pushing the short pipe 3 to reach the damaged part of the repair pipe 2.

[0032] With the above basic structure, the outer diameter of the short pipe 3 is equal to the inner diameter of the repair pipe 2. The equal diameter is convenient for the short pipe 3 to be just clamped in the repair pipe 2.

[0033] Working principle: First, conduct a line inspection on the repair pipe 2, and the construction personnel carry out dredging and drainage inside the pipe; second, for the damaged part of the repair pipe 2 that needs to be repaired, it is detected by the existing technology CCTV and the inspection robot first enters the pipe, and the construction personnel determine the position of the damaged part of the repair pipe 2; then, the hydraulic press 9 pushes the push rod 10 and the push plate 11 to push the short pipe 3 to the damaged position; then, the construction personnel will retract the push cylinder 7 through the controller, and the limit rod 8 connected to the push cylinder 7 releases the limit on the limit hole of the retaining ring 6, and the retaining ring 6 will tighten against one end of the short pipe 3 and the repaired short pipe 3 through its own expansion force, so as to avoid the construction personnel going down into the pipe for manual replacement and fixing operations; finally, after the replacement is completed, the hydraulic press 9 is withdrawn from the repair pipe 2.

[0034] The traction assembly 1 will drive the push plate 11 and the push rod 10 to push the short pipe 3 to the damaged part of the repair pipe 2. The push cylinder 7 drives the absorption rod to retract, and the limit rod 8 releases the limit on the limit hole of the retaining ring 6, so that the retaining ring 6 can rely on the elastic force to expand against the short pipe 3 and the repair pipe 2. Thus, the short pipe 3 automatically realizes the repair operation in the repair pipe 2, avoiding the construction personnel entering the repair pipe 2 for manual replacement and fixing, improving the construction safety of the construction personnel during construction operations. Using the traction assembly 1 to replace the short pipe 3 in the repair pipe 2 saves the time of traditional conventional replacement and improves work efficiency.

[0035] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation manners here. And the obvious changes or modifications derived therefrom still fall within the protection scope of the creation of this utility model.

Claims

1. A trenchless short pipe replacement and repair mechanism, characterized in that: include: A traction assembly (1), a repair pipe (2), a short pipe (3) and a clamping assembly (4); The short pipe (3) is arranged in the repair pipeline; The traction assembly (1) is installed at one end of the inlet of the repair pipeline (2) and is used to push the short pipe (3) to move inside the repair pipeline (2); The clamping assembly (4) is installed on the short pipe (3) and is used to clamp the short pipe (3) and the repair pipe (2) when the short pipe (3) moves to the repair position of the repair pipe (2).

2. A trenchless short pipe replacement and repair mechanism according to claim 1, characterized in that: The short tube (3) is provided with a groove (5), and the clamping assembly (4) is installed in the groove (5) in the short tube (3).

3. A trenchless short pipe replacement and repair mechanism according to claim 2, characterized in that: The clamping assembly (4) comprises a retaining ring (6), a pushing cylinder (7) and a limiting rod (8); the retaining ring (6) is arranged in the groove (5); the pushing cylinder (7) is arranged on the traction assembly (1); the limiting rod (8) is arranged on the output end of the pushing cylinder (7); the limiting rod (8) and the limiting hole on the retaining ring (6) are engaged with each other.

4. The trenchless short pipe replacement and repair mechanism according to claim 1, characterized in that: The traction assembly (1) comprises an oil hydraulic press (9), a push rod (10) and a push plate (11); the oil hydraulic press (9) is arranged at the inlet of the repaired pipeline (2); the push rod (10) is arranged at the output end of the oil hydraulic press (9); and the push plate (11) is mounted on the push rod (10).

5. A trenchless short pipe replacement and repair mechanism according to claim 4, characterized in that: The push plate (11) is circular in shape, and the diameter of the push plate (11) is less than or equal to the inner diameter of the repaired pipe (2).

6. The trenchless short pipe replacement and repair mechanism according to claim 1, characterized in that: The outer diameter of the short pipe (3) is equal to the inner diameter of the repaired pipe (2).

Images