Quick connecting piece for pipe jacking of municipal drainage system

Abstract

The utility model relates to the technical field of pipe jacking construction, and discloses a quick connecting piece for pipe jacking of a municipal drainage system, which comprises a first jacking pipe and a second jacking pipe, the second jacking pipe is arranged on one side of the first jacking pipe, and one end of the first jacking pipe and one end of the second jacking pipe are provided with grooves. And connecting blocks are fixedly connected to the adjacent positions in the two grooves correspondingly, the two connecting blocks are sleeved with a connecting structure, the connecting structure comprises a first arc-shaped clamping block, the front end face of the first arc-shaped clamping block is rotationally connected with a second arc-shaped clamping block, and a third arc-shaped clamping block is arranged on one side of the first arc-shaped clamping block. According to the utility model, the groove is formed in the connecting position of the first jacking pipe and the second jacking pipe, and the connecting part is embedded into the groove, so that the protruding part of the connecting part can be eliminated, the jacking resistance is reduced, and the four detachable expansion bolts are used for fixing; and therefore, the situation of leakage caused by looseness between the limiting bolt and the limiting nut due to vibration is prevented.

Description

Technical Field

[0001] This utility model relates to the field of pipe jacking construction technology, and in particular to a quick connector for pipe jacking in municipal drainage systems. Background Technology

[0002] Municipal drainage systems are an important part of urban infrastructure, responsible for collecting, transporting and treating rainwater and sewage in cities to ensure the hygiene of the urban environment and the convenience of residents' lives. During the construction of drainage systems, pipe jacking is required for laying pipelines. Due to the long distances between the jacking locations, connectors are needed to connect multiple jacking pipes together.

[0003] There are still some problems in the use of quick connectors for pipe jacking in existing municipal drainage systems. Current connectors often use clamps and flanges, which usually form certain protrusions at the connection points. These protrusions increase the friction with the surrounding soil during the jacking process, resulting in increased jacking resistance. Moreover, they are easily loosened by vibration during use. Therefore, those skilled in the art provide a quick connector for pipe jacking in municipal drainage systems to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a quick connector for jacking pipes in municipal drainage systems. By creating a groove at the connection point between the first and second jacking pipes and embedding the connecting part into the groove, the protruding part of the connecting part can be eliminated, thereby reducing the jacking resistance.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a quick connector for jacking pipes in a municipal drainage system, comprising a first jacking pipe and a second jacking pipe, wherein the second jacking pipe is disposed on one side of the first jacking pipe, and a groove is provided at one end of both the first jacking pipe and the second jacking pipe, wherein a connecting block is fixedly connected to adjacent positions inside the two grooves, and a connecting structure is sleeved on the outside of the two connecting blocks;

[0006] The connecting structure includes a first arc-shaped clamping block, a second arc-shaped clamping block rotatably connected to the front end face of the first arc-shaped clamping block, a third arc-shaped clamping block provided on one side of the first arc-shaped clamping block, and a fourth arc-shaped clamping block rotatably connected to the front end of the third arc-shaped clamping block. Clamping grooves are provided on the side wall of the first arc-shaped clamping block near the third arc-shaped clamping block, the side wall of the second arc-shaped clamping block near the fourth arc-shaped clamping block, the side wall of the third arc-shaped clamping block near the first arc-shaped clamping block, and the side wall of the fourth arc-shaped clamping block near the second arc-shaped clamping block. Two limiting bolts are provided on the end face of the third arc-shaped clamping block away from the first arc-shaped clamping block and the end face of the fourth arc-shaped clamping block away from the second arc-shaped clamping block. The four limiting bolts sequentially pass through the third arc-shaped clamping block and the first arc-shaped clamping block to one side of the first arc-shaped clamping block and the fourth arc-shaped clamping block and the second arc-shaped clamping block to one side of the second arc-shaped clamping block, and each end is threaded with a limiting nut.

[0007] Through the above technical solution, the first arc-shaped clamp and the second arc-shaped clamp are sleeved on the outside of the connecting block at the end of the second jacking pipe, and the third arc-shaped clamp and the fourth arc-shaped clamp are sleeved on the outside of the connecting block at the end of the first jacking pipe. Then, the two hooks are hung on the two hooks, and the four limiting bolts are passed through the third arc-shaped clamp and the first arc-shaped clamp and the fourth arc-shaped clamp and the second arc-shaped clamp, respectively, and fixed with four limiting nuts. This increases the preload of the two sealing gaskets, eliminates the protruding part of the connection part, and reduces the jacking resistance.

[0008] Furthermore, two detachable expansion bolts are provided on the side wall of the first arc-shaped clamping block away from the second arc-shaped clamping block and the side wall of the second arc-shaped clamping block away from the fourth arc-shaped clamping block. Two mounting holes are provided on one end face of the third arc-shaped clamping block near the first arc-shaped clamping block and on one end face of the fourth arc-shaped clamping block near the second arc-shaped clamping block. The four mounting holes are respectively located on one side of the four detachable expansion bolts. The four mounting holes pass through the first arc-shaped clamping block and the second arc-shaped clamping block and lead to the interior of the four mounting holes.

[0009] With the above technical solution, when vibration occurs during use and the connection between the limiting bolt and the limiting nut becomes loose, four detachable expansion bolts are used to continuously fix the connection between the first arc-shaped clamping block and the third arc-shaped clamping block and the second arc-shaped clamping block and the fourth arc-shaped clamping block, thereby preventing the connection between the limiting bolt and the limiting nut from becoming loose due to vibration and causing gaps.

[0010] Furthermore, the first arc-shaped clamp and the third arc-shaped clamp are both fixedly connected with buckles at the front center of the upper end face, and the second arc-shaped clamp and the fourth arc-shaped clamp are both fixedly connected with hooks at the rear center of the upper end face of the two first arc-shaped clamps. The outer hanging rods of the two buckles are respectively hung on the two hooks.

[0011] The above technical solution allows the outer hanging rods of the two buckles to be hung on two hooks, facilitating the connection between the first arc-shaped clamp and the second arc-shaped clamp, and between the third arc-shaped clamp and the fourth arc-shaped clamp.

[0012] Furthermore, a slot is provided on the inner side wall of the groove at the end of the second jacking pipe, and a mudguard is slidably connected inside the slot. A limit block is fixedly connected to the end of the mudguard away from the second jacking pipe.

[0013] The above technical solution facilitates the installation of mudguards inside the slot by sliding the mudguards.

[0014] Furthermore, sealing gaskets are fixedly connected to the end faces of the two connecting blocks that are in contact with each other;

[0015] The above technical solution facilitates the improvement of the sealing performance between the first jacking pipe and the second jacking pipe.

[0016] Furthermore, the slot is an annular groove, and the mudguard is a hollow cylinder.

[0017] The above technical solution facilitates comprehensive protection of the two grooves by using a hollow cylindrical mudguard, preventing soil from affecting the connection structure.

[0018] This utility model has the following beneficial effects:

[0019] 1. In this utility model, the quick connector for jacking pipes in municipal drainage systems can eliminate the protruding part of the connection part by opening a groove at the connection position between the first jacking pipe and the second jacking pipe, and embedding the connection part into the groove, thereby reducing the jacking resistance.

[0020] 2. In this utility model, when vibration occurs during use and the connection between the limiting bolt and the limiting nut becomes loose, four detachable expansion bolts are used to continuously fix the connection between the first arc-shaped clamping block and the third arc-shaped clamping block and the second arc-shaped clamping block and the fourth arc-shaped clamping block, thereby preventing the connection between the limiting bolt and the limiting nut from becoming loose due to vibration and causing a gap.

[0021] 3. In this utility model, the mudguard is first inserted into the slot, and the four detachable expansion bolts are removed. Then the limiting bolts and limiting nuts are removed, or the limiting bolts and limiting nuts are loosened, and the outer hook rod of the buckle is removed from the hook, which facilitates disassembly and quick connection. Attached Figure Description

[0022] Figure 1 This is a perspective view of a quick connector for a municipal drainage system jacking pipe proposed in this utility model;

[0023] Figure 2This is a three-dimensional sectional view of a quick connector for a municipal drainage system jacking pipe proposed in this utility model;

[0024] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 This is a three-dimensional exploded view of a quick-connect fitting structure for a municipal drainage system jacking pipe, as proposed in this utility model.

[0026] Legend:

[0027] 1. First jacking pipe; 2. Second jacking pipe; 3. Mudguard; 4. Slot; 5. Groove; 6. Limiting block; 7. Connecting block; 8. Sealing gasket; 9. Connecting structure; 901. First arc-shaped clamping block; 902. Second arc-shaped clamping block; 903. Third arc-shaped clamping block; 904. Fourth arc-shaped clamping block; 905. Clamping groove; 906. Limiting bolt; 907. Limiting nut; 908. Mounting hole; 909. Detachable expansion bolt; 910. Buckle; 911. Hook. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Reference Figure 1-4 The present invention provides an embodiment of a quick connector for a municipal drainage system jacking pipe, comprising a first jacking pipe 1 and a second jacking pipe 2. The second jacking pipe 2 is disposed on one side of the first jacking pipe 1. A groove 5 is provided at one end of both the first jacking pipe 1 and the second jacking pipe 2. Connecting blocks 7 are fixedly connected to adjacent positions inside the two grooves 5. A connecting structure 9 is sleeved on the outside of the two connecting blocks 7, and the two connecting blocks 7 are fixed by the connecting structure 9.

[0030] The connecting structure 9 includes a first arc-shaped clamping block 901, a second arc-shaped clamping block 902 rotatably connected to the front end face of the first arc-shaped clamping block 901, a third arc-shaped clamping block 903 on one side of the first arc-shaped clamping block 901, and a fourth arc-shaped clamping block 904 rotatably connected to the front end of the third arc-shaped clamping block 903. Clamping grooves 905 are provided on the side wall of the first arc-shaped clamping block 901 near the third arc-shaped clamping block 903, the side wall of the second arc-shaped clamping block 902 near the fourth arc-shaped clamping block 904, the side wall of the third arc-shaped clamping block 903 near the first arc-shaped clamping block 901, and the side wall of the fourth arc-shaped clamping block 904 near the second arc-shaped clamping block 902. Two limiting bolts 906 are provided on the end face of the third arc-shaped clamping block 903 away from the first arc-shaped clamping block 901 and the end face of the fourth arc-shaped clamping block 904 away from the second arc-shaped clamping block 902. The four limiting bolts 906 sequentially pass through the third arc-shaped clamping block 904. Block 903 and the first arc-shaped clamping block 901 are connected to one side of the first arc-shaped clamping block 901, and the fourth arc-shaped clamping block 904 and the second arc-shaped clamping block 902 are connected to one side of the second arc-shaped clamping block 902. The ends of both are threaded with limit nuts 907. The first arc-shaped clamping block 901 and the second arc-shaped clamping block 902 are fitted on the outside of the connecting block 7 at the end of the second jacking pipe 2. The third arc-shaped clamping block 903 and the fourth arc-shaped clamping block 904 are fitted on the outside of the connecting block 7 at the end of the first jacking pipe 1. The outer hanging rods of the two buckles 910 are hung on the two hooks 911. The four limit bolts 906 are passed through the third arc-shaped clamping block 903 and the first arc-shaped clamping block 901 and the fourth arc-shaped clamping block 904 and the second arc-shaped clamping block 902 respectively, and fixed with the four limit nuts 907. This increases the preload of the two sealing gaskets 8, eliminates the protruding part of the connection part, and reduces the jacking resistance.

[0031] like Figure 2 , 3 As shown in Figure 4, two detachable expansion bolts 909 are provided on the side wall of the first arc-shaped clamping block 901 away from the second arc-shaped clamping block 902 and on the side wall of the second arc-shaped clamping block 902 away from the fourth arc-shaped clamping block 904. Two mounting holes 908 are provided on one end face of the third arc-shaped clamping block 903 near the first arc-shaped clamping block 901 and on one end face of the fourth arc-shaped clamping block 904 near the second arc-shaped clamping block 902. The four mounting holes 908 are respectively located on one side of the four detachable expansion bolts 909. The first arc-shaped clamping block 901 and the second arc-shaped clamping block 902 pass through the four mounting holes 908. During use, when vibration causes the connection between the limiting bolt 906 and the limiting nut 907 to loosen, four detachable expansion bolts 909 continuously fix the connection between the first arc-shaped clamping block 901 and the third arc-shaped clamping block 903 and the second arc-shaped clamping block 902 and the fourth arc-shaped clamping block 904, thereby preventing the leakage caused by the vibration causing the limiting bolt 906 and the limiting nut 907 to loosen.

[0032] Hooks 910 are fixedly connected to the front center of the upper end face of the first arc-shaped clamp 901 and the third arc-shaped clamp 903. Hooks 911 are fixedly connected to the rear center of the upper end face of the second arc-shaped clamp 902 and the fourth arc-shaped clamp 904 located at the front end of the two first arc-shaped clamps 901. The outer hanging rods of the two hooks 910 are respectively hung on the two hooks 911. Hanging the outer hanging rods of the two hooks 910 on the two hooks 911 facilitates the connection between the first arc-shaped clamp 901 and the second arc-shaped clamp 902, and between the third arc-shaped clamp 903 and the fourth arc-shaped clamp 904.

[0033] A slot 4 is provided on the inner side wall of the groove 5 at the end of the second jacking pipe 2. A mudguard 3 is slidably connected inside the slot 4. A limit block 6 is fixedly connected to the end of the mudguard 3 away from the second jacking pipe 2, so that the mudguard 3 can be installed inside the slot 4 by sliding the mudguard 3.

[0034] Sealing gaskets 8 are fixedly connected to the end faces of the two connecting blocks 7 that are in contact with each other, which facilitates the improvement of the sealing between the first jacking pipe 1 and the second jacking pipe 2. The slot 4 is in the shape of a circular groove, and the mudguard 3 is in the shape of a hollow cylinder, which facilitates the comprehensive protection of the two grooves 5 by the mudguard 3 of the hollow cylinder, preventing mud from affecting the connection structure 9.

[0035] Working principle: During installation, the mudguard 3 is inserted into the slot 4. By fitting the first jacking pipe 1 and the second jacking pipe 2 together, the two sealing gaskets 8 are fitted together. Then, the first arc-shaped clamp 901 and the second arc-shaped clamp 902 are fitted onto the outside of the connecting block 7 at the end of the second jacking pipe 2. The third arc-shaped clamp 903 and the fourth arc-shaped clamp 904 are fitted onto the outside of the connecting block 7 at the end of the first jacking pipe 1. The outer hanging rods of the two latches 910 are then hung on the two hooks 911. The four limiting bolts 906 are passed through the third arc-shaped clamp. 903 is fixed to the first arc-shaped clamp 901 and the fourth arc-shaped clamp 904 is fixed to the second arc-shaped clamp 902 using four limiting nuts 907, thereby increasing the preload of the two sealing gaskets 8 and thus connecting them. Then, four detachable expansion bolts 909 are inserted into the four mounting holes 908 after passing through the first arc-shaped clamp 901 and the second arc-shaped clamp 902 respectively. Rotating the bolts on the four detachable expansion bolts 909 will cause expansion and fix them. Then, the mudguard 3 is pushed towards the first jacking pipe 1 to complete the installation.

[0036] When vibration occurs during use and the connection between the limiting bolt 906 and the limiting nut 907 becomes loose, four detachable expansion bolts 909 continuously fix the connection between the first arc-shaped clamping block 901 and the third arc-shaped clamping block 903 and the second arc-shaped clamping block 902 and the fourth arc-shaped clamping block 904, thereby preventing the connection between the limiting bolt 906 and the limiting nut 907 from becoming loose due to vibration and causing gaps.

[0037] During the drilling process, since the connecting structure 9 is located inside the two grooves 5 and is supported by the mudguard 3 against the inner wall of the groove 5, there is no protruding structure during the drilling process, eliminating the protruding part of the connecting part, thereby reducing the jacking resistance, improving the jacking efficiency, and reducing energy consumption.

[0038] When disassembly is required after use, first insert the mudguard 3 into the slot 4, remove the four detachable expansion bolts 909, then remove the limit bolt 906 and the limit nut 907, or loosen the limit bolt 906 and the limit nut 907, and then remove the outer hanging rod of the buckle 910 from the hook 911 for easy disassembly.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick connector for a municipal drainage system jacking pipe, comprising a first jacking pipe (1) and a second jacking pipe (2), wherein the second jacking pipe (2) is disposed on one side of the first jacking pipe (1), characterized in that: The first jacking pipe (1) and the second jacking pipe (2) are both provided with grooves (5) at one end. Connecting blocks (7) are fixedly connected to adjacent positions inside the two grooves (5). Connecting structures (9) are sleeved on the outside of the two connecting blocks (7). The connecting structure (9) includes a first arc-shaped clamping block (901), a second arc-shaped clamping block (902) rotatably connected to the front end face of the first arc-shaped clamping block (901), a third arc-shaped clamping block (903) provided on one side of the first arc-shaped clamping block (901), a fourth arc-shaped clamping block (904) rotatably connected to the front end of the third arc-shaped clamping block (903), and the first arc-shaped clamping block (901) near the third arc-shaped clamping block (903), the second arc-shaped clamping block (902) near the fourth arc-shaped clamping block (904), and the third arc-shaped clamping block (903) near the first arc-shaped clamping block (901) and the fourth arc-shaped clamping block (904) near each other. The second arc-shaped clamping block (902) has a clamping groove (905) on one side wall. The third arc-shaped clamping block (903) and the fourth arc-shaped clamping block (904) are provided with two limiting bolts (906) on the end face away from the first arc-shaped clamping block (901) and the end face away from the second arc-shaped clamping block (902). The four limiting bolts (906) pass through the third arc-shaped clamping block (903) and the first arc-shaped clamping block (901) to one side of the first arc-shaped clamping block (901) and the fourth arc-shaped clamping block (904) and the second arc-shaped clamping block (902) to one side of the second arc-shaped clamping block (902), respectively, and the ends of the four limiting bolts (906) are threaded with limiting nuts (907).

2. The quick connector for jacking pipes in a municipal drainage system according to claim 1, characterized in that: Two detachable expansion bolts (909) are provided on the side wall of the first arc-shaped clamping block (901) away from the second arc-shaped clamping block (902) and the side wall of the second arc-shaped clamping block (902) away from the fourth arc-shaped clamping block (904). Two mounting holes (908) are provided on one end face of the third arc-shaped clamping block (903) near the first arc-shaped clamping block (901) and one end face of the fourth arc-shaped clamping block (904) near the second arc-shaped clamping block (902). The four mounting holes (908) are respectively located on one side of the four detachable expansion bolts (909). The four mounting holes (908) pass through the first arc-shaped clamping block (901) and the second arc-shaped clamping block (902) and lead to the interior of the four mounting holes (908).

3. A quick connector for jacking pipes in a municipal drainage system according to claim 1, characterized in that: The first arc-shaped clamp (901) and the third arc-shaped clamp (903) are both fixedly connected with buckles (910) at the front center of the upper end face. The second arc-shaped clamp (902) and the fourth arc-shaped clamp (904) located at the front end of the two first arc-shaped clamps (901) are both fixedly connected with hooks (911) at the rear center of the upper end face. The outer hanging rods of the two buckles (910) are respectively hung on the two hooks (911).

4. A quick-connect fitting for jacking pipes in a municipal drainage system according to claim 1, characterized in that: A slot (4) is provided on the inner side wall of the groove (5) at the end of the second jacking pipe (2). A mudguard (3) is slidably connected inside the slot (4). A limit block (6) is fixedly connected to one end of the mudguard (3) away from the second jacking pipe (2).

5. A quick connector for jacking pipes in a municipal drainage system according to claim 1, characterized in that: Sealing gaskets (8) are fixedly connected to the end faces of the two connecting blocks (7) that are in contact with each other.

6. A quick connector for jacking pipes in a municipal drainage system according to claim 4, characterized in that: The slot (4) is an annular groove, and the mudguard (3) is a hollow cylinder.

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