Grouting pipe assembly

Abstract

The utility model provides a grouting pipe assembly, relates to the technical field of tunnel construction, and can overcome the defect that a plugging structure in the prior art is troublesome to assemble. The piston is matched in an inner cavity of the pipe body in a sealed mode, the locking assembly is arranged at the position of the piston, the locking assembly comprises an installation base fixedly arranged at the position of the piston, an assembly cavity is formed in the position of the installation base, and locking pieces which abut against the inner cavity of the pipe body towards the two sides in the length direction of the assembly cavity are arranged in the assembly cavity; the inner cavity of the pipe body is further provided with an insertion opening for the locking piece to be inserted and used for locking the position of the piston; according to the locking assembly, after the piston is inserted into the pipe body, the telescopic plug pin and the inserting opening of the pipe body are connected in a matched and inserted mode, and compared with connection through a clamp in the prior art, the locking assembly is more convenient, and construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, in particular to a grouting pipe assembly. Background Art

[0002] The grouting pipe assembly is a tool widely used in construction and engineering, mainly used for sealing and reinforcing concrete structures. It includes a pipe body and a sealing structure. In the field of tunnel construction, a casting formwork is used. The casting formwork is provided with a casting port, and the grouting pipe is connected to the casting port. The concrete delivery pump delivers concrete to the space between the casting formwork and the inner wall of the tunnel through the grouting pipe, thereby forming a concrete lining. The sealing structure can prevent the concrete from flowing back from the pipe port after grouting.

[0003] The sealing structure of the existing grouting pipe assembly mainly includes a sealing piece and a clamp. After the sealing piece is inserted into the port of the grouting pipe, the clamp is fixed to the outside of the port of the grouting pipe to confine the sealing piece in the grouting pipe to prevent the sealing piece from falling off. The clamp usually needs to be installed by means of fasteners, such as bolts and nuts, which makes the sealing structure more troublesome to assemble and affects the construction efficiency. Utility Model Content

[0004] The utility model provides a grouting pipe assembly, which can overcome the defect that the blocking structure in the prior art is relatively troublesome to assemble.

[0005] According to the utility model, a grouting pipe assembly comprises a pipe body, a piston sealed in a cavity of the pipe body, and a locking assembly arranged at the piston, wherein the locking assembly comprises a mounting seat fixedly arranged at the piston, an assembly cavity is formed at the mounting seat, and a locking piece is arranged in the assembly cavity, which is pressed against the cavity of the pipe body on both sides along the length direction of the assembly cavity;

[0006] The inner cavity of the tube body is also provided with a socket for inserting a locking piece and for locking the position of the piston.

[0007] Through the locking assembly of the utility model, after the piston is inserted into the tube body, it can be fixed with the tube body through the locking piece, which is more convenient than the connection through the clamp in the prior art and improves the construction efficiency.

[0008] Preferably, the pipe body includes a grouting portion and a connecting portion located at both ends, the socket is arranged at the grouting portion, and the connecting portion is used to connect with the casting template.

[0009] In the utility model, the connection part is provided so that the pipe body can be connected to the casting template, thereby keeping the pipe body stable to transport concrete.

[0010] Preferably, the locking member comprises two sliders which slide in cooperation with the inside of the assembly cavity, and a spring is pressed between the two sliders; a telescopic opening which passes through the assembly cavity is formed on the side wall of the mounting seat, and a pin which passes through the telescopic opening is fixed on one side of the slider.

[0011] In the utility model, the spring is arranged to abut between the two sliders, so that the two latches can pass through the sockets at the same time, thereby ensuring the connection stability.

[0012] Preferably, a guide surface is provided at one end of the latch away from the slider and at a side wall facing the piston, and the guide surface is located at both the inside and outside of the telescopic opening.

[0013] In the utility model, by setting the guide surface, after the mounting seat enters the interior of the tube body, the slide block can automatically retract into the telescopic opening through the contact between the guide surface and the end of the tube body, thereby realizing one-step plug-in locking.

[0014] Preferably, a cover plate is connected to one side of the mounting seat where the assembly cavity is provided, a slide groove is provided on the cover plate, and a slider is connected to a lever penetrating the slide groove.

[0015] In the utility model, the lever is arranged so that when the lever moves relatively, the slider can be driven to move, thereby driving the latch pin to retract into the telescopic opening.

[0016] Preferably, a handle is fixed to the end surface of the cover plate, and the handle is located directly above the two levers.

[0017] In the utility model, the handle is arranged just above the lever, so that the operator can pull the handle and lever the two levers with one hand, thereby completing the disassembly of the piston and the locking assembly with one hand.

[0018] Preferably, the piston is provided with mounting holes penetrating through both end faces; a connecting rod is fixed to the end face of the mounting seat away from the cover plate, and a mounting groove is provided at one end of the connecting rod; the piston and the connecting rod are connected at the mounting hole and the mounting groove by fasteners.

[0019] In the utility model, the piston is connected to the connecting rod through a fastener, so that the piston can be easily replaced after being damaged, thereby facilitating maintenance; wherein one end face of the piston is tapered, so as to facilitate insertion into the tube body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the main body in Example 1;

[0021] Figure 2 It is a schematic diagram of the connection between the locking assembly and the piston in Example 1;

[0022] Figure 3This is a schematic diagram of the locking assembly in Example 1 after the cover plate is removed;

[0023] Figure 4 This is a front cross-sectional view of the main body in Example 1. DETAILED DESCRIPTION

[0024] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the embodiments. It should be understood that the embodiments are only used to explain the utility model but not to limit it.

[0025] Example 1

[0026] like Figure 1-4 As shown, this embodiment provides a grouting pipe assembly, which includes a pipe body 110, a piston 220 sealed in the inner cavity of the pipe body 110, and a locking assembly 130 provided at the piston 220, wherein the locking assembly 130 includes a mounting seat 231 fixedly provided at the piston 220, an assembly cavity 3310 is formed at the mounting seat 231, and a locking member 337 is provided in the assembly cavity 3310, which is pressed against the inner cavity of the pipe body 110 on both sides along the length direction of the assembly cavity 3310;

[0027] The inner cavity of the tube body 110 is also provided with a socket 113 for inserting a locking member 337 to lock the position of the piston 220 .

[0028] Through the locking assembly 130 in this embodiment, after the piston 220 is inserted into the tube body 110, the locking member 337 can be matched and fixed with the tube body 110, which is more convenient than the connection through the clamp in the prior art and improves the construction efficiency.

[0029] In this embodiment, the pipe body 110 includes a grouting portion 111 and a connecting portion 112 located at both ends, the socket 113 is arranged at the grouting portion 111, and the connecting portion 112 is used to connect with the casting template.

[0030] By setting the connection part 112 in this embodiment, the pipe body 110 can be connected to the casting template, so as to keep the pipe body 110 stable to transport concrete, wherein the connection part 112 is connected to a flange-like mounting ring 450, and the mounting ring 450 is provided with an opening, and can be connected to the casting template or to other pipe bodies 110 through the mounting ring 450.

[0031] In this embodiment, the locking member 337 includes two sliders 333 that slide in cooperation with the inside of the assembly cavity 3310, and a spring 335 is pressed between the two sliders 333; a telescopic opening 232 that passes through the assembly cavity 3310 is opened on the side wall of the mounting seat 231, and a pin 234 that passes through the telescopic opening 232 is fixed on one side of the slider 333.

[0032] By setting the spring 335 in this embodiment to abut between the two sliders 333, the two latches 234 can pass through the socket 113 at the same time, thereby ensuring the connection stability.

[0033] In this embodiment, a guide surface 4340 is provided at one end of the latch pin 234 away from the slider 333 and facing the side wall of the piston 220 . The guide surface 4340 is located at both the inside and outside of the telescopic opening 232 .

[0034] By setting the guide surface 4340 in this embodiment, after the mounting seat 231 enters the interior of the tube body 110, the slider 333 can automatically retract into the telescopic opening 232 through the contact between the guide surface 4340 and the end of the tube body 110, thereby realizing one-step plug-in locking.

[0035] In this embodiment, a cover plate 236 is connected to a side of the mounting seat 231 where the assembly cavity 3310 is provided. The cover plate 236 is provided with a slide groove 2362 . The slider 333 is connected to a lever 2330 that passes through the slide groove 2362 .

[0036] By disposing the lever 2330 in this embodiment, the lever 2330 can drive the slider 333 to move when it moves relatively, thereby driving the latch 234 to retract into the telescopic opening 232 .

[0037] In this embodiment, a handle 2361 is fixed to the end surface of the cover plate 236 , and the handle 2361 is located directly above the two levers 2330 .

[0038] By arranging the handle 2361 just above the lever 2330 in this embodiment, the operator can pull the handle 2361 and move the two levers 2330 with one hand, thereby completing the disassembly of the piston 220 and the locking assembly 130 with one hand.

[0039] In this embodiment, the piston 220 is provided with mounting holes 421 passing through both end surfaces; a connecting rod 240 is fixed at the end surface of the mounting seat 231 away from the cover plate 236, and a mounting groove 441 is provided at one end of the connecting rod 240; the piston 220 and the connecting rod 240 are matched and connected at the mounting hole 421 and the mounting groove 441 by fasteners.

[0040] By connecting the piston 220 to the connecting rod 240 via a fastener in this embodiment, the piston 220 can be easily replaced after being damaged, thereby facilitating maintenance; wherein the fastener is any one of a screw and a bolt, and the mounting hole and the mounting groove are threaded, and the connection is performed via the above-mentioned fastener.

[0041] When a grouting pipe assembly of this embodiment is used, first connect one end of the connecting portion 112 of the pipe body 110 to the casting template or other position where casting is required, connect the grouting pump to the grouting portion 111, and concrete enters the casting position through the pipe body 110. After casting, it is immediately sealed; first hold the handle 2361, and first insert the piston 220 into the pipe body 110 from the casting part until the mounting seat 231 extends into the interior of the pipe body 110. When the guide surface 4340 of the latch 234 contacts the end of the pipe body 110, the latch 234 will be inserted into the pipe body 110 due to the inclination of the guide surface 4340. The pin 234 retracts into the telescopic opening 232 and the assembly cavity 3310, and the spring 335 is compressed at the same time. After the pin 234 corresponds to the socket 113, the spring 335 recovers to slide the slider 333, and the pin 234 is pushed into the socket 113, completing one-step blocking and locking; when disassembling, one hand is inserted under the handle 2361, and the two levers 2330 are slid relative to each other with two or more fingers, which can drive the pin 234 to disengage from the socket 113, and then pull the handle 2361 to separate the entire locking assembly 130 and the piston 220 from the tube body 110 to complete the disassembly.

[0042] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application to obtain other embodiments based on one or several embodiments provided in the present application, and these embodiments do not exceed the protection scope of the present application.

[0043] The above is a schematic description of the present invention and its implementation methods, which is not restrictive. The embodiments shown are only part of the implementation methods of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A grouting pipe assembly, characterized in that: The invention comprises a tube body (110), a piston (220) sealed in an inner cavity of the tube body (110), and a locking assembly (130) provided at the piston (220), wherein the locking assembly (130) comprises a mounting seat (231) fixedly provided at the piston (220), an assembly cavity (3310) being formed at the mounting seat (231), and a locking member (337) being provided in the assembly cavity (3310) and pressing against the inner cavity of the tube body (110) on both sides along the length direction of the assembly cavity (3310); The inner cavity of the tube body (110) is also provided with a socket (113) for inserting a locking member (337) and for locking the position of the piston (220).

2. A grouting pipe assembly according to claim 1, characterized in that: The pipe body (110) comprises a grouting portion (111) and a connecting portion (112) located at two ends; the socket (113) is arranged at the grouting portion (111); and the connecting portion (112) is used to be connected to a casting template.

3. A grouting pipe assembly according to claim 1, characterized in that: The locking member (337) comprises two sliders (333) that slide in cooperation with the interior of the assembly cavity (3310), and a spring (335) is pressed tightly between the two sliders (333); a telescopic opening (232) that penetrates the assembly cavity (3310) is formed on the side wall of the mounting seat (231), and a latch (234) that penetrates the telescopic opening (232) is fixedly provided on one side of the slider (333).

4. A grouting pipe assembly according to claim 1, characterized in that: A guide surface (4340) is provided at one end of the latch pin (234) away from the slider (333) and on the side wall facing the piston (220), and the guide surface (4340) is located inside and outside the telescopic opening (232) at the same time.

5. A grouting pipe assembly according to claim 3, characterized in that: A cover plate (236) is connected to one side of the mounting seat (231) where the assembly cavity (3310) is provided. The cover plate (236) is provided with a slide groove (2362). The slider (333) is connected to a lever (2330) that passes through the slide groove (2362).

6. A grouting pipe assembly according to claim 5, characterized in that: A handle (2361) is fixed to the end surface of the cover plate (236), and the handle (2361) is located directly above the two levers (2330).

7. A grouting pipe assembly according to claim 1, characterized in that: The piston (220) is provided with mounting holes (421) penetrating both end surfaces; a connecting rod (240) is fixed to the end surface of the mounting seat (231) away from the cover plate (236); a mounting groove (441) is provided at one end of the connecting rod (240); the piston (220) and the connecting rod (240) are matched and connected at the mounting hole (421) and the mounting groove (441) by fasteners.

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