Grouting pipe joint

Abstract

The utility model discloses a grouting pipe joint, and belongs to the field of grouting pipe joints, the grouting pipe joint comprises a first connector and a second connector which are used for connecting two sections of grouting pipes, and one end, close to the second connector, of the first connector is provided with a thread; the end, close to the first connector, of the second connector is rotationally connected with a nut ring matched with the threads, and a sealing assembly is arranged between the ends, close to each other, of the first connector and the second connector. The ends, away from each other, of the first connector and the second connector are used for being connected to the end of a grouting pipe in an inserted mode. According to the grouting pipe joint, a screw joint mode is used for connection in a low-pressure grouting environment, a nut ring can be replaced in a high-pressure grouting environment, a detachable flange plate is used for flange connection, and even screw joint and flange connection can be used at the same time, so that the stability is improved.

Description

Technical Field

[0001] This application relates to the field of grouting pipe joint technology, specifically a grouting pipe joint. Background Technology

[0002] Grouting pipe joints are widely used in construction engineering, water conservancy projects, mining, and other fields. They not only ensure smooth connection of grouting pipes but also effectively prevent grout leakage, thereby guaranteeing the safety and efficiency of the grouting process.

[0003] In conventional grouting projects, where low-pressure environments are prevalent, threaded pipe fittings are often sufficient to withstand the grouting pressure. This satisfies the connection requirements and allows for quick assembly and disassembly, ensuring efficiency. However, in high-pressure environments, flanged or welded connections are typically required for stable connections, ensuring higher pressure resistance and sealing performance. However, disassembly is cumbersome or impossible. A complete on-site grouting project often involves both low-pressure and high-pressure environments, necessitating the use of two or more types of pipe fittings. This increases costs and makes fitting replacement inconvenient, leading to inefficiency.

[0004] Therefore, this application provides a grouting pipe joint to solve the above-mentioned problems. Utility Model Content

[0005] This application provides a grouting pipe joint, which aims to solve the problem that existing pipe joints mentioned in the background art can only meet the usage requirements under the same pressure environment, have a small scope of application, and result in high costs in terms of material preparation and construction for grouting projects.

[0006] To achieve the above objectives, this application provides the following technical solution: a grouting pipe joint, comprising a first connector and a second connector for connecting two grouting pipe sections, wherein the end of the first connector near the second connector has a thread, and the end of the second connector near the first connector is rotatably connected with a nut ring that matches the thread, and a sealing assembly is provided between the ends of the first connector and the second connector that are close to each other, wherein the ends of the first connector and the second connector that are far from each other are used for insertion into the end of the grouting pipe, and the sides of the ends of the first connector and the second connector that are far from each other respectively have a first welding ring and a second welding ring for welding to the end of the grouting pipe.

[0007] Both the first and second connectors are fitted with detachable flanges to bring them closer together. Each detachable flange is equipped with a double-ended bolt and lock nuts screwed to both ends of the bolts to bring the two detachable flanges closer together. This allows for bolted connections in low-pressure grouting environments, while in high-pressure grouting environments, the nut rings can be replaced with detachable flanges for flange connections. Furthermore, both bolted and flange connections can be used simultaneously to improve stability.

[0008] Preferably, the sealing assembly includes a concave rubber pad fixedly installed on one end of the first connector near the second connector and a convex rubber pad fixedly installed on one end of the second connector near the first connector, wherein the concave rubber pad and the convex rubber pad have adjacent sides that fit together.

[0009] Preferably, the first connector has a first sealing groove at the end near the thread to accommodate the concave rubber gasket, and the second connector has a second sealing groove at the end near the first connector to accommodate the clip of the convex rubber gasket.

[0010] Preferably, the sides of the ends of the first connector and the second connector that are far apart from each other have at least three first strain grooves and two strain grooves arranged in a ring array.

[0011] Preferably, the inner diameter of the detachable flange is slightly larger than the outer diameter of the first welding ring and the second strain groove.

[0012] Preferably, the end of the second connector near the first connector has a limiting ring that prevents the nut ring from disengaging from the end of the second connector near the first connector.

[0013] This grouting pipe joint uses a bolted connection in low-pressure grouting environments, while in high-pressure grouting environments, the nut ring can be replaced with a detachable flange for flange connection. It can even use both bolted and flange connections simultaneously to improve stability.

[0014] This grouting pipe joint is easy to assemble and disassemble because it uses a detachable flange. Only one type of pipe joint is needed to meet the requirements of use under various pressure environments, thus reducing the material preparation and construction costs of grouting projects. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a grouting pipe joint;

[0016] Figure 2 This is a schematic diagram of the exploded structure of a grouting pipe joint;

[0017] Figure 3This is a schematic diagram of the sealing component in a grouting pipe joint;

[0018] Figure 4 This is a schematic diagram of the structure of the first connector of a grouting pipe joint;

[0019] Figure 5 This is a schematic diagram of the structure of the second connector of a grouting pipe joint.

[0020] In the picture:

[0021] 1. First connector; 11. Thread; 12. First sealing groove; 13. First welding ring; 14. First strain groove;

[0022] 2. Second connector; 21. Limiting ring; 22. Second sealing groove; 23. Second welding ring; 24. Second strain groove;

[0023] 3. Nut ring;

[0024] 4. Removable flange; 41. Double-ended bolt; 42. Lock nut;

[0025] 5. Sealing components; 51. Concave rubber gasket; 52. Convex rubber gasket; 521. Clip head. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] This embodiment provides a grouting pipe connector, such as Figures 1-5 As shown, the grouting pipe joint includes a first connector 1 and a second connector 2 for connecting two grouting pipe sections. The end of the first connector 1 near the second connector 2 has a thread 11. The end of the second connector 2 near the first connector 1 is rotatably connected with a nut ring 3 that matches the thread 11. A sealing assembly 5 is provided between the ends of the first connector 1 and the second connector 2 that are close to each other. The ends of the first connector 1 and the second connector 2 that are far from each other are used to be inserted into the end of the grouting pipe. The sides of the ends of the first connector 1 and the second connector 2 that are far from each other have a first welding ring 13 and a second welding ring 23 for welding to the end of the grouting pipe, respectively.

[0028] The first connector 1 and the second connector 2 are both fitted with detachable flanges 4 to bring them closer together. The detachable flanges 4 are equipped with double-ended bolts 41 and lock nuts 42 screwed to both ends of the double-ended bolts 41 to bring the two detachable flanges 4 closer together.

[0029] In use, under low pressure, the ends of the two grouting pipes are inserted into the first connector 1 and the second connector 2 respectively, and then the nut ring 3 is rotated to lock them with the thread 11, while ensuring that the sealing component 5 is in the correct position to provide a sealing effect. Under high pressure, the ends of the grouting pipes are inserted into the first connector 1 and the second connector 2, and the first welding ring 13 and the second welding ring 23 are welded together with the ends of the grouting pipes using welding equipment. Then, the detachable flange 4 is fitted over the first connector 1 and the second connector 2, and they are locked with double-ended bolts 41 and lock nuts 42, so that the first connector 1 and the second connector 2 are pressed against each other, and the sealing component 5 keeps the seal in between. When higher pressure is required, the first connector 1 and the second connector 2 can be locked first with the nut ring 3, and then reinforced by locking the two detachable flanges 4 to further improve the sealing and stability.

[0030] Specifically, the sealing assembly 5 includes a concave rubber pad 51 fixedly installed at the end of the first connector 1 near the second connector 2 and a convex rubber pad 52 fixedly installed at the end of the second connector 2 near the first connector 1. The concave rubber pad 51 and the convex rubber pad 52 fit together. The end of the first connector 1 near the thread 11 has a first sealing groove 12 for accommodating the concave rubber pad 51, and the end of the second connector 2 near the first connector 1 has a second sealing groove 22 for accommodating the retainer 521 of the convex rubber pad 52. When the first connector 1 and the second connector 2 are close to each other and connected, the concave rubber pad 51 and the convex rubber pad 52 contact and fit together to form a tight sealing interface. This design utilizes the elasticity and deformation capacity of the rubber material to ensure that the grout will not leak from the connection during the grouting process.

[0031] Furthermore, the sides of the ends of the first connector 1 and the second connector 2 that are far apart from each other have at least three first strain grooves 14 and second strain grooves 24 arranged in a ring array. These strain grooves can relieve the stress inserted into the end of the grouting pipe, and at the same time relieve the stress and deformation generated during the grouting process, preventing the connector from being damaged due to excessive pressure.

[0032] It should be noted that the inner diameter of the detachable flange 4 is slightly larger than the outer diameter of the first welding ring 13 and the second strain groove 24; this ensures that the detachable flange 4 can be disassembled and assembled from the ends of the first connector 1 and the second connector that are away from each other.

[0033] Understandably, the end of the second connector 2 closest to the first connector 1 has a limiting ring 21 that restricts the nut ring 3 from disengaging from the end of the second connector 2 closest to the first connector 1. The function of the limiting ring 21 is to provide a support point for the nut ring 3 at the end of the second connector 2 when the nut ring 3 is screwed onto the thread 11 of the first connector 1, so as to facilitate the second connector 2 to approach the first connector 1.

[0034] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A grouting pipe joint comprising a first connector (1) and a second connector (2) for connecting two sections of grouting pipe, characterized in that: The first connecting head (1) has a thread (11) near one end of the second connecting head (2), the second connecting head (2) is rotatably connected with a nut ring (3) matched with the thread (11) near one end of the first connecting head (1), a sealing assembly (5) is arranged between the first connecting head (1) and the second connecting head (2) near one end of each other, wherein the first connecting head (1) and the second connecting head (2) are used for inserting into the end of the grouting pipe, and the side surface of the first connecting head (1) and the second connecting head (2) is provided with a first welding ring (13) and a second welding ring (23) for welding with the end of the grouting pipe, respectively; The first connecting head (1) and the second connecting head (2) are provided with a detachable flange (4) for approaching each other, the detachable flange (4) is matched with a double head bolt (41) and a lock nut (42) screwed on both ends of the double head bolt (41) for approaching each other.

2. A grout pipe joint according to claim 1, characterised in that: The sealing assembly (5) comprises a concave rubber pad (51) fixedly installed near one end of the first connecting head (1) close to the second connecting head (2) and a convex rubber pad (52) fixedly installed near one end of the second connecting head (2) close to the first connecting head (1), the concave rubber pad (51) and the convex rubber pad (52) are matched with each other.

3. A grout pipe joint according to claim 2, characterised in that: The first connecting head (1) is provided with a first sealing groove (12) near one end of the thread (11) for accommodating the concave rubber pad (51), and the second connecting head (2) is provided with a second sealing groove (22) near one end of the first connecting head (1) for accommodating the clamping head (521) of the convex rubber pad (52).

4. A grout pipe joint according to claim 3, characterised in that: The side surface of the first connecting head (1) and the second connecting head (2) is respectively provided with at least three first strain grooves (14) and second strain grooves (24) arranged in an annular array.

5. A grout pipe joint according to claim 4, characterised in that: The inner diameter of the detachable flange (4) is slightly larger than the outer diameter of the first welding ring (13) and the second strain groove (24).

6. A grout pipe joint according to claim 5, characterised in that: The second connecting head (2) is provided with a limiting ring (21) near one end of the first connecting head (1) for limiting the nut ring (3) from being separated from the second connecting head (2) near one end of the first connecting head (1).

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