Prefabricated concrete electric jacking pipe with good sealing performance

Abstract

The utility model discloses a prefabricated concrete electric power jacking pipe with good sealing performance, which relates to the technical field of jacking pipes and comprises a concrete jacking pipe, a sealing ring is arranged inside the upper end of the concrete jacking pipe, and four groups of fixing heads are arranged between the outer wall of the sealing ring and the inner wall of the concrete jacking pipe. An annular inflation rubber ring is arranged in the middle of the sealing ring, a gas buffer pipe is arranged at the lower end of the sealing ring, a push rod is arranged in the middle of the gas buffer pipe, a movable head is arranged at the position, inside the annular inflation rubber ring, of the upper end of the push rod, and a sealing piston head is arranged at the position, inside the gas buffer pipe, of the lower end of the push rod. A pressure spring is arranged at the lower end of the sealing piston head, and a supporting seat is arranged at the lower end of the pressure spring. According to the prefabricated concrete electric jacking pipe with the good sealing performance, the sealing effect of the connecting position of the prefabricated concrete electric jacking pipe can be better, dust cannot enter the connecting position easily, and connection is tighter.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe jacking, in particular to a prefabricated concrete electric power pipe jacking with good sealing performance. Background Art

[0002] Pipe jacking technology is a non-excavation and burrowing pipe laying technology used in municipal construction. Its advantages are that it has no impact on the surrounding environment or has little impact, a small construction site, low noise, and can operate deep underground, which are advantages that excavation and burial pipes cannot match.

[0003] When the existing precast concrete power jacking pipe is in use, its interface is often not sealed enough, resulting in poor sealing effect and insufficient stability after connection. In order to solve the shortcomings of the existing technology, we propose a precast concrete power jacking pipe with good sealing performance. Utility Model Content

[0004] The main purpose of the utility model is to provide a prefabricated concrete power jacking pipe with good sealing performance, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A prefabricated concrete power jacking pipe with good sealing performance comprises a concrete jacking pipe, a sealing ring is arranged inside the upper end of the concrete jacking pipe, four groups of fixed heads are arranged between the outer wall of the sealing ring and the inner wall of the concrete jacking pipe, an annular inflatable rubber ring is arranged in the middle of the sealing ring, a gas buffer tube is arranged at the lower end of the sealing ring, a connecting port is arranged between the gas buffer tube and the annular inflatable rubber ring, the gas buffer tube is detachably connected to the annular inflatable rubber ring through the arranged connecting port, a push rod is arranged in the middle of the gas buffer tube, the upper end of the push rod is provided with a movable head inside the annular inflatable rubber ring, the lower end of the push rod is provided with a sealing piston head inside the gas buffer tube, the lower end of the sealing piston head is provided with a pressure spring, and the lower end of the pressure spring is provided with a support seat.

[0007] Preferably, two groups of connecting blocks are provided on the inner wall of the lower end of the concrete jacking pipe, the lower ends of the two groups of connecting blocks are provided with fixing rods, the lower ends of the fixing rods are provided with fixing blocks, the front ends of the fixing blocks are provided with elastic telescopic rods, and the front ends of the elastic telescopic rods are provided with arc-shaped extrusion plates.

[0008] Preferably, the fixing head is fixedly connected to the outer wall of the sealing ring, a connecting port is provided between the fixing head and the inner wall of the concrete jacking pipe, and the fixing head is detachably connected to the inner wall of the sealing ring through the provided connecting port.

[0009] Preferably, an installation interface is provided between the annular inflatable rubber ring and the sealing ring, and the annular inflatable rubber ring is detachably connected to the sealing ring through the provided installation interface; a connecting hole is provided between the gas buffer tube and the sealing ring, and the gas buffer tube is detachably connected to the sealing ring through the provided connecting hole; a movable interface is provided between the sealing piston head and the gas buffer tube, and the sealing piston head is movably connected to the gas buffer tube through the provided movable interface.

[0010] Preferably, a connecting port is provided between the connecting block and the inner wall of the concrete jacking pipe, and the connecting block is detachably connected to the inner wall of the concrete jacking pipe through the provided connecting port.

[0011] Preferably, a connection port is provided between the elastic telescopic rod and the fixed block, the elastic telescopic rod is detachably connected to the fixed block via the provided connection port, and the arc-shaped extrusion plate is movably connected to the fixed block via the provided elastic telescopic rod.

[0012] Beneficial Effects

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. In the utility model, through the provided sealing ring, annular inflatable rubber ring and gas buffer tube, the device can make the connection of the precast concrete power jacking pipe have a better sealing effect, dust will not easily enter the connection, and the connection between the concrete jacking pipes will be tighter. In addition, the provided gas buffer tube can also provide a certain buffering effect when the concrete jacking pipes are connected to prevent the precast concrete power jacking pipes from being worn during the connection, which not only makes the sealing good, but also plays a certain protective role. The bottom of the concrete power jacking pipe is connected to the top of another group of jacking pipes, and the end of the bottom is connected to the sealing ring on the inner wall of the top of the other group of jacking pipes. The end of the bottom is in contact with the annular inflatable rubber ring in the middle of the sealing ring, and the annular inflatable rubber ring is squeezed, so that the gas inside the annular inflatable rubber ring forms pressure on the movable head, and the movable head pushes the sealing piston head through the push rod to move downward inside the gas buffer tube, and the sealing piston head squeezes the pressure spring at the lower end, which can not only ensure the airtightness of the connection between the jacking pipes, but also provide a certain buffering and protective effect for the connection between the jacking pipes.

[0015] 2. In the utility model, by providing a fixed block, an elastic telescopic rod and an arc-shaped extrusion plate, the device can make the connection between the concrete jacking pipes more stable, the connection will not easily become loose, and the connection effect is better. When the concrete jacking pipes are connected, the arc-shaped extrusion plate at the front end of the fixed block will compress the elastic telescopic rod to move inward. When the lower end of the concrete jacking pipe is connected to the inner wall of the upper end of another group of concrete jacking pipes, the arc-shaped extrusion plate will form an extrusion pressure on the inner wall of the concrete jacking pipe through the elastic force of the elastic telescopic rod. The pressure makes the connection between the concrete jacking pipes more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the sealing ring and the annular inflatable rubber ring of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the gas buffer tube of the utility model;

[0019] Figure 4 It is a schematic diagram of the arc-shaped extruded plate connection structure of the utility model.

[0020] In the figure: 1. concrete jacking pipe; 2. sealing ring; 3. fixing rod; 4. fixing block; 5. annular inflatable rubber ring; 6. gas buffer tube; 7. fixing head; 8. movable head; 9. push rod; 10. sealing piston head; 11. pressure spring; 12. support seat; 13. connecting block; 14. elastic telescopic rod; 15. arc extrusion plate. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figure 1-4As shown, a prefabricated concrete power jacking pipe with good sealing performance comprises a concrete jacking pipe 1, a sealing ring 2 is arranged inside the upper end of the concrete jacking pipe 1, the sealing ring 2 is used to ensure the sealing performance of the connection between the concrete jacking pipes 1, four groups of fixing heads 7 are arranged between the outer wall of the sealing ring 2 and the inner wall of the concrete jacking pipe 1, the fixing heads 7 are fixed to the outer wall of the sealing ring 2, a connecting port is arranged between the fixing heads 7 and the inner wall of the concrete jacking pipe 1, the fixing heads 7 are detachably connected to the inner wall of the concrete jacking pipe 1 through the arranged connecting port, an annular inflatable rubber ring 5 is arranged in the middle of the sealing ring 2, and the annular inflatable rubber ring 5 and the sealing ring 2 are connected. An installation interface is provided between the annular inflatable rubber ring 5, and the annular inflatable rubber ring 5 is detachably connected to the sealing ring 2 through the provided installation interface. A gas buffer tube 6 is provided at the lower end of the sealing ring 2, and a connecting port is provided between the gas buffer tube 6 and the annular inflatable rubber ring 5. The gas buffer tube 6 is detachably connected to the annular inflatable rubber ring 5 through the provided connecting port. The gas buffer tube 6 passes through the bottom of the sealing ring 2 and is connected to the annular inflatable rubber ring 5 to buffer the gas inside the annular inflatable rubber ring 5. A push rod 9 is provided in the middle of the gas buffer tube 6, and the push rod 9 can move up and down in the middle of the gas buffer tube 6. The upper end of the push rod 9 is in the annular inflatable A movable head 8 is arranged inside the rubber ring 5. When the gas inside the gas buffer tube 6 is compressed, the push rod 9 is pushed to move in the middle of the gas buffer tube 6 through the movable head 8. A sealing piston head 10 is arranged at the lower end of the push rod 9 inside the gas buffer tube 6. The push rod 9 pushes the sealing piston head 10 to move up and down inside the gas buffer tube 6. The sealing piston head 10 is tightly connected to the gas buffer tube 6. A pressure spring 11 is arranged at the lower end of the sealing piston head 10. The pressure spring 11 is used to reset the sealing piston head 10. A support seat 12 is arranged at the lower end of the pressure spring 11. The support seat 1 2 is used to support the pressure spring 11, connect the bottom of the concrete power jacking pipe with the top of another group of jacking pipes, and the end of the bottom will be connected to the sealing ring 2 on the inner wall of the top of the other group of jacking pipes. The end of the bottom contacts the annular inflatable rubber ring 5 in the middle of the sealing ring 2 and squeezes the annular inflatable rubber ring 5, so that the gas inside the annular inflatable rubber ring 5 forms pressure on the movable head 8. The movable head 8 will push the sealing piston head 10 to move downward inside the gas buffer tube 6 through the push rod 9. At the same time, the sealing piston head 10 will squeeze the pressure spring 11 at the lower end to provide sealing and buffering effects on the connection.

[0023] like Figure 1-4As shown, the inner wall of the lower end of the concrete jacking pipe 1 is provided with two groups of connecting blocks 13, the connecting blocks 13 are fixed inside the lower end of the concrete jacking pipe 1, the lower ends of the two groups of connecting blocks 13 are provided with fixing rods 3, the fixing rods 3 are fixed to the lower ends of the connecting blocks 13, the lower ends of the fixing rods 3 are provided with fixing blocks 4, the fixing blocks 4 are fixed to the lower ends of the fixing rods 3, the front ends of the fixing blocks 4 are provided with elastic telescopic rods 14, the elastic telescopic rods 14 can be elastically deformed, and the front ends of the elastic telescopic rods 14 are provided with arc extrusion plates 15, the arc extrusion plates The pressure plate 15 can move forward and backward through the elastic telescopic rod 14 to form an extrusion pressure on the inner wall of the concrete jacking pipe 1. When the concrete jacking pipes 1 are connected, the arc-shaped extrusion plate 15 at the front end of the fixed block 4 will compress the elastic telescopic rod 14 to move inward. When the lower end of the concrete jacking pipe 1 is connected to the inner wall of the upper end of another group of concrete jacking pipes 1, the arc-shaped extrusion plate 15 will form an extrusion pressure on the inner wall of the concrete jacking pipe 1 through the elastic force of the elastic telescopic rod 14. The pressure makes the connection between the concrete jacking pipes 1 more stable.

[0024] It should be noted that the utility model is a prefabricated concrete power jacking pipe with good sealing performance. When in use, the bottom of the concrete power jacking pipe is connected to the top of another group of jacking pipes, and the end of the bottom is connected to the sealing ring 2 on the inner wall of the top of the other group of jacking pipes. The end of the bottom is in contact with the annular inflatable rubber ring 5 in the middle of the sealing ring 2, and the annular inflatable rubber ring 5 is squeezed, so that the gas inside the annular inflatable rubber ring 5 forms pressure on the movable head 8, and the movable head 8 will push the sealing piston head 10 through the push rod 9 to move downward inside the gas buffer tube 6. At the same time, the sealing piston head 10 will squeeze the pressure spring 11 at the lower end. When the concrete jacking pipes 1 are connected, the arc extrusion plate 15 at the front end of the fixed block 4 will compress the elastic telescopic rod 14 to move inward. When the lower end of the concrete jacking pipe 1 is connected to the inner wall of the upper end of the other group of concrete jacking pipes 1, the arc extrusion plate 15 will form an extrusion pressure on the inner wall of the concrete jacking pipe 1 through the elastic force of the elastic telescopic rod 14, and the pressure makes the connection between the concrete jacking pipes 1 more stable.

[0025] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A prefabricated concrete power jacking pipe with good sealing performance, comprising a concrete jacking pipe (1), characterized in that: A sealing ring (2) is arranged inside the upper end of the concrete jacking pipe (1), four groups of fixed heads (7) are arranged between the outer wall of the sealing ring (2) and the inner wall of the concrete jacking pipe (1), an annular inflatable rubber ring (5) is arranged in the middle of the sealing ring (2), a gas buffer tube (6) is arranged at the lower end of the sealing ring (2), a connecting port is arranged between the gas buffer tube (6) and the annular inflatable rubber ring (5), the gas buffer tube (6) is detachably connected to the annular inflatable rubber ring (5) through the arranged connecting port, a push rod (9) is arranged in the middle of the gas buffer tube (6), the upper end of the push rod (9) is provided with a movable head (8) inside the annular inflatable rubber ring (5), the lower end of the push rod (9) is provided with a sealing piston head (10) inside the gas buffer tube (6), the lower end of the sealing piston head (10) is provided with a pressure spring (11), and the lower end of the pressure spring (11) is provided with a support seat (12).

2. A precast concrete power jacking pipe with good sealing performance according to claim 1, characterized in that: Two groups of connection blocks (13) are arranged on the inner wall of the lower end of the concrete jacking pipe (1), and the lower ends of the two groups of connection blocks (13) are both provided with fixing rods (3), and the lower ends of the fixing rods (3) are provided with fixing blocks (4), and the front ends of the fixing blocks (4) are provided with elastic telescopic rods (14), and the front ends of the elastic telescopic rods (14) are provided with arc-shaped extrusion plates (15).

3. The precast concrete power jacking pipe with good sealing performance according to claim 1, characterized in that: The fixed head (7) is fixedly connected to the outer wall of the sealing ring (2); a connecting port is provided between the fixed head (7) and the inner wall of the concrete jacking pipe (1); and the fixed head (7) is detachably connected to the inner wall of the sealing ring (2) via the provided connecting port.

4. The precast concrete power jacking pipe with good sealing performance according to claim 1, characterized in that: A mounting interface is provided between the annular inflatable rubber ring (5) and the sealing ring (2), and the annular inflatable rubber ring (5) is detachably connected to the sealing ring (2) via the provided mounting interface; a connecting hole is provided between the gas buffer tube (6) and the sealing ring (2), and the gas buffer tube (6) is detachably connected to the sealing ring (2) via the provided connecting hole; and a movable interface is provided between the sealing piston head (10) and the gas buffer tube (6), and the sealing piston head (10) is movably connected to the gas buffer tube (6) via the provided movable interface.

5. The precast concrete power jacking pipe with good sealing performance according to claim 2, characterized in that: A connection port is provided between the connection block (13) and the inner wall of the concrete jacking pipe (1), and the connection block (13) is detachably connected to the inner wall of the concrete jacking pipe (1) via the provided connection port.

6. The precast concrete power jacking pipe with good sealing performance according to claim 2, characterized in that: A connection port is provided between the elastic telescopic rod (14) and the fixed block (4); the elastic telescopic rod (14) is detachably connected to the fixed block (4) via the provided connection port; and the arc-shaped extrusion plate (15) is movably connected to the fixed block (4) via the provided elastic telescopic rod (14).

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