Assembly type limiting grouting pipe

Abstract

The utility model belongs to the technical field of railway construction engineering, and discloses an assembly type limiting grouting pipe which comprises a plurality of grouting pipes, a plurality of grout outlet holes are formed in the surfaces of the grouting pipes, rotating cylinders are movably connected into the grouting pipes, and first guide grooves are annularly formed in the inner walls of the rotating cylinders at 120 degrees. Through cooperation of a rotating cylinder, a first guide groove, a rubber gasket, a limiting block and other structures, a grouting pipe is conveniently fixed into a middle rock wall hole, then the grouting pipe is prevented from shaking and falling off during grouting operation, through the design of the rubber gasket, a supporting plate moves to drive the rubber gasket to abut against the inner wall of the hole, and the grouting effect is improved. When the grouting pipe is used for grouting, friction is generated between the grouting pipe and the inner wall of the hole, resistance is generated, the position of the grouting pipe is limited, the phenomenon that the grouting pipe shakes and falls off during grouting operation is prevented, and the overall quality and efficiency of grouting operation are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of railway construction engineering, and specifically relates to an assembled limit grouting pipe. Background Technique

[0002] The assembled limit grouting pipe is a grouting pipeline system that combines simple assembly and accurate positioning. It uses a special structural design to enable the grouting pipe to maintain a stable position and shape during installation and use, ensuring the smooth progress of the grouting operation. As an advanced engineering material, the assembled limit grouting pipe plays an increasingly important role in modern architecture and civil engineering.

[0003] For example, the utility model with the application number CN202322890404.X discloses an assembled limit grouting pipe, which relates to the technical field of grouting pipes, and includes a limit splicing pipe, a port pipe, a guide head, a connecting pipe and a reinforcement mechanism. In the utility model, since the outer side of the upper end and the inner side of the lower end of the first splicing pipe of the limit splicing pipe respectively have matching external threads and internal threads, multiple limit splicing pipes can be combined by threads to assemble into a complete grouting pipe, and the length can be combined according to requirements, so that the length can be freely adjusted according to the construction requirements. When grouting, the slurry is input into the pipe from one end and then flows out from the first slurry outlet hole. Under the action of the grouting pressure in the pipe, the elastic sheet is extruded outward, and the elastic sheet extrudes the limit plate outward through the linkage rod, so that the limit plate opens and is stuck on the inner side wall of the grouting hole and is anchored in the grouting hole, and it is not easy to fall off.

[0004] When the existing grouting pipe is in use, generally, a reinforcement steel plate is directly used to fix one end of the grouting pipe on the upper part of the middle rock wall. However, since the terrain of the upper part of the middle rock wall may be relatively soft, there are great hidden dangers in only using the reinforcement steel plate to fix the grouting pipe. For example, it may cause risks such as instability of the surrounding rock of the middle rock wall and structural collapse, resulting in the shaking and falling off of the grouting pipe during the grouting operation, and further reducing the overall construction efficiency of the railway construction project. Therefore, an assembled limit grouting pipe is proposed to solve the problems raised in the background technique. Content of the Utility Model

[0005] To solve the problems raised in the above background technique, the utility model provides an assembled limit grouting pipe, which has the advantages of being convenient to fix the grouting pipe inside the hole of the middle rock wall, thereby preventing the grouting pipe from shaking and falling off during the grouting operation.

[0006] To achieve the above object, the utility model provides the following technical solutions: an assembled limit grouting pipe, which includes a plurality of grouting pipes. A number of slurry outlet holes are provided on the surface of the grouting pipe. A rotating cylinder is movably connected inside the grouting pipe. First guiding grooves are annularly and equally spaced at 120 degrees on the inner wall of the rotating cylinder. Second guiding grooves are annularly and equally spaced at 120 degrees on both the left and right sides of the rotating cylinder. Support plates are annularly and equally spaced at 120 degrees and movably connected inside the grouting pipe. A rubber gasket is fixedly connected to one side of the support plate. Round rods are provided on both the left and right sides of the support plate. A limit block is movably connected to the inner wall of the grouting pipe. A clamping block is fixedly connected to one end of the rotating cylinder away from the limit block.

[0007] Preferably, internal and external threads are respectively provided at both ends of the grouting pipe. One end of one of the grouting pipes is sleeved with a reinforcing steel plate, and a bolt assembly is threadedly connected to the end of the grouting pipe close to the reinforcing steel plate.

[0008] Preferably, connecting columns are annularly and equally spaced at 120 degrees on the outer wall of the limit block, and the connecting columns are movably clamped inside the first guiding grooves.

[0009] Preferably, when the limit block moves towards the spring direction, it drives the connecting column to slide along the track of the first guiding groove and rotates the rotating cylinder. A spring fixed to the grouting pipe is fixedly connected to one side of the clamping block.

[0010] Preferably, a first sliding groove for circumferentially limiting the connecting column is provided on the inner wall of the grouting pipe, and one end of the limit block is bevel-shaped.

[0011] Preferably, both the support plate and the rubber gasket are arc-shaped, and the rubber gasket penetrates through the outer wall of the grouting pipe and extends to the outside of the grouting pipe.

[0012] Preferably, the round rod is movably clamped inside the second guiding groove, and a second sliding groove matching with the round rod is provided on the inner wall of the grouting pipe. The second sliding groove is used for circumferentially limiting the round rod when the rotating cylinder rotates.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] Through the cooperation among structures such as a rotating cylinder, a first guiding groove, a rubber gasket, and a limiting block, the utility model facilitates fixing the grouting pipe inside the hole of the middle rock wall, thereby preventing the grouting pipe from shaking and falling off during the grouting operation. When the limiting block moves, the connecting column slides along the trajectory of the first guiding groove, causing the rotating cylinder to rotate. Then, the round rod drives the support plate to move towards the outer wall of the grouting pipe along the trajectory of the second guiding groove. Through the design of the rubber gasket, after the support plate moves, it drives the rubber gasket to abut against the inner wall of the hole, thereby causing friction with the inner wall of the hole and generating resistance, so as to limit the position of the grouting pipe and prevent it from shaking and falling off during the grouting operation, thus improving the overall quality and efficiency of the grouting operation. Description of the Drawings

[0015] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 is a schematic diagram of the front sectional structure of the utility model;

[0017] Figure 3 is Figure 2 the enlarged view at A in

[0018] Figure 4 is a schematic diagram of the top sectional structure at the grouting pipe of the utility model;

[0019] Figure 5 is an exploded view of the rotating cylinder of the utility model.

[0020] In the figure: 1, grouting pipe; 2, slurry outlet hole; 3, rotating cylinder; 4, first guiding groove; 5, second guiding groove; 6, support plate; 7, rubber gasket; 8, round rod; 9, clamping block; 10, spring; 11, limiting block; 12, first sliding groove; 13, second sliding groove; 14, reinforcing steel plate; 15, bolt assembly. Detailed Embodiment

[0021] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the utility model.

[0022] Such as Figures 1 to 5As shown in the figure, the utility model provides an assembled limit grouting pipe, which includes a plurality of grouting pipes 1. A number of slurry outlet holes 2 are arranged on the surface of the grouting pipe 1. A rotating cylinder 3 is movably connected inside the grouting pipe 1. First guiding grooves 4 are annularly and equally arranged at 120-degree intervals on the inner wall of the rotating cylinder 3. Second guiding grooves 5 are annularly and equally arranged at 120-degree intervals on both the left and right sides of the rotating cylinder 3. Support plates 6 are annularly and equally arranged at 120-degree intervals and movably connected inside the grouting pipe 1. A rubber gasket 7 is fixedly connected to one side of the support plate 6. Round rods 8 are arranged on both the left and right sides of the support plate 6. A limit block 11 is movably connected to the inner wall of the grouting pipe 1. A clamping block 9 is fixedly connected to one end of the rotating cylinder 3 away from the limit block 11.

[0023] With the above scheme: when the limit block 11 moves, the connecting column slides along the track of the first guiding groove 4, so that the rotating cylinder 3 rotates. Then, the round rod 8 drives the support plate 6 to move towards the outer wall of the grouting pipe 1 along the track of the second guiding groove 5. Through the design of the rubber gasket 7, after the support plate 6 moves, it drives the rubber gasket 7 to abut against the inner wall of the hole, and then causes friction with the inner wall of the hole and generates resistance, so as to limit the position of the grouting pipe 1, and further prevent it from shaking and falling off during the grouting operation, thereby improving the overall quality and efficiency of the grouting operation.

[0024] As Figures 1 to 5 As shown in the figure, internal and external threads are respectively arranged at both ends of the grouting pipe 1. One end of a grouting pipe 1 is sleeved with a reinforcing steel plate 14. A bolt assembly 15 is threadedly connected to the end of the grouting pipe 1 close to the reinforcing steel plate 14. Connecting columns are annularly and equally arranged on the outer wall of the limit block 11 at 120-degree intervals. The connecting columns are movably clamped inside the first guiding groove 4. When the limit block 11 moves towards the spring 10, it drives the connecting column to slide along the track of the first guiding groove 4 and makes the rotating cylinder 3 rotate. A spring 10 fixedly connected to the grouting pipe 1 is fixedly connected to one side of the clamping block 9.

[0025] With the above scheme: through the design of the spring 10, its function is that when the grouting machine stops grouting inside the grouting pipe 1, at this time, the clamping block 9 drives the rotating cylinder 3 to rotate in the reverse direction under the action of the elastic force of the spring 10, so that the connecting column on the limit block 11 moves in the reverse direction along the track of the first guiding groove 4 to reset, which is convenient for the next use of the device.

[0026] As Figures 2 to 5 As shown in the figure, a first sliding groove 12 for circumferentially limiting the connecting column is arranged on the inner wall of the grouting pipe 1. One end of the limit block 11 is bevel-shaped. Both the support plate 6 and the rubber gasket 7 are arc-shaped. The rubber gasket 7 penetrates through the outer wall of the grouting pipe 1 and extends to the outside of the grouting pipe 1. The round rod 8 is movably clamped inside the second guiding groove 5. A second sliding groove 13 matching with the round rod 8 is arranged on the inner wall of the grouting pipe 1. The second sliding groove 13 is used for circumferentially limiting the round rod 8 when the rotating cylinder 3 rotates.

[0027] Using the above solution: Since both the support plate 6 and the rubber gasket 7 are arc-shaped, the arc-shaped design enables the rubber gasket 7 to better fit the inner wall of the hole. Especially when the inner wall of the hole has an irregular shape or is uneven, this fit can reduce the gap between the rubber gasket 7 and the hole, thereby increasing the friction between the grouting pipe 1 and the hole, and further helping to fix the position of the grouting pipe 1 and prevent it from moving or shifting during the grouting process.

[0028] The working principle and usage process of the present utility model: The operator threadedly connects multiple grouting pipes 1 according to the length of the reserved hole. Subsequently, the spliced grouting pipes 1 are placed inside the reserved hole, and the reinforcement steel plate 14 is abutted against the upper part of the intermediate rock wall. Then, the grouting pipe 1 and the reinforcement steel plate 14 are fixedly connected through the bolt assembly 15, thereby initially fixing the position of the grouting pipe 1.

[0029] Subsequently, the grouting machine is connected to one end of the grouting pipe 1 close to the bolt assembly 15, and the grouting machine is started to inject the slurry into the interiors of the multiple grouting pipes 1. During the process of injecting the slurry into the grouting pipe 1, the limit block 11 moves towards the interior of the grouting pipe 1 under the action of the slurry pressure, and then drives the connecting column thereon to slide along the track of the first guiding groove 4 under the limiting action of the first sliding groove 12, and causes the rotating cylinder 3 to rotate. While the rotating cylinder 3 rotates, due to the circumferential limitation of the second sliding groove 13 on the round rod 8, the round rod 8 will drive the support plate 6 to move towards the outside of the grouting pipe 1 along the track of the second guiding groove 5. While the support plate 6 moves, it drives the rubber gasket 7 on one side thereof to move in the same direction. When the round rod 8 abuts against the inner wall of the second guiding groove 5, at this time, all three rubber gaskets 7 abut against the inner wall of the reserved hole in the intermediate rock wall, thereby causing friction against the inner wall of the hole and generating resistance, and further positioning the overall position of the grouting pipe 1 again, so as to prevent the grouting pipe 1 from shaking and falling off during the grouting process and affecting the normal progress of the grouting operation.

[0030] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An assembled limited grouting pipe, comprising a plurality of grouting pipes (1), characterized in that: The surface of the grouting pipe (1) is provided with a plurality of grouting holes (2); the interior of the grouting pipe (1) is movably connected to a rotating drum (3); the inner wall of the rotating drum (3) is provided with a first guide groove (4) in an annular shape of 120 degrees; the left and right sides of the rotating drum (3) are both provided with a second guide groove (5) in an annular shape of 120 degrees; the interior of the grouting pipe (1) is movably connected to a support plate (6) in an annular shape of 120 degrees; a rubber gasket (7) is fixedly connected to one side of the support plate (6); round rods (8) are provided on the left and right sides of the support plate (6); the inner wall of the grouting pipe (1) is movably connected to a limit block (11); and the end of the rotating drum (3) away from the limit block (11) is fixedly connected to a clamping block (9).

2. The assembled limited grouting pipe according to claim 1 is characterized in that: Both ends of the grouting pipe (1) are respectively provided with internal and external threads, one end of one of the grouting pipes (1) is sleeved with a reinforcing steel plate (14), and one end of the grouting pipe (1) close to the reinforcing steel plate (14) is threadedly connected with a bolt assembly (15).

3. The assembled limited grouting pipe according to claim 1 is characterized in that: The outer wall of the limit block (11) is provided with a connecting column at a 120-degree angle in an annular shape, and the connecting column is movably engaged in the interior of the first guide groove (4).

4. The assembled limited grouting pipe according to claim 1 is characterized in that: When the limit block (11) moves in the direction of the spring (10), it drives the connecting column to slide along the track of the first guide groove (4) and causes the rotating drum (3) to rotate. One side of the clamping block (9) is fixedly connected to a spring (10) fixedly connected to the grouting pipe (1).

5. The assembled limited grouting pipe according to claim 1 is characterized in that: The inner wall of the grouting pipe (1) is provided with a first sliding groove (12) for circumferentially limiting the connection column, and one end of the limiting block (11) is in the shape of an inclined surface.

6. The assembled limited grouting pipe according to claim 1 is characterized in that: The support plate (6) and the rubber gasket (7) are both in an arc shape; the rubber gasket (7) penetrates the outer wall of the grouting pipe (1) and extends to the outside of the grouting pipe (1).

7. The assembled limited grouting pipe according to claim 1 is characterized in that: The round rod (8) is movably clamped inside the second guide groove (5), and the inner wall of the grouting pipe (1) is provided with a second slide groove (13) that matches the round rod (8), and the second slide groove (13) is used to circumferentially limit the round rod (8) when the rotating drum (3) rotates.

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