Jacking pipe receiving rapid portal blocking structure

Abstract

The utility model relates to the technical field of pipe jacking construction, in particular to a pipe jacking receiving rapid tunnel portal blocking structure which comprises a connecting steel plate and a fixing steel plate, the connecting steel plate and the fixing steel plate are welded, a grouting pipe is fixedly connected to the surface of the fixing steel plate, and a ball valve is arranged on the surface of the grouting pipe. The surface of the grouting pipe is movably connected with a connecting ring, and the face, away from the grouting pipe, of the fixing steel plate is fixedly connected with a conveying pipe. Through the connection of the grouting pipe and the ball valve and the connection of the conveying pipe and the connecting cover, cement paste is injected into the tunnel portal, the sealing and water stopping effects of the tunnel portal are ensured, under the action of the abutting block, silt is effectively prevented from entering the conveying pipe, the grouting use performance of the grouting pipe and the ball valve is improved, and through the connection of the clamping block and the tension spring, the grouting efficiency is improved. And under the insertion connection of the clamping block and the insertion groove, the connection of the connecting ring on the fixing block is realized, and the convenience of the use of the connecting ring and the clamping ring is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of jacking pipe construction, in particular to a jacking pipe receiving rapid tunnel door sealing structure. Background Art

[0002] After grouting consolidation is completed in the tunnel, the first ring of pipe segments is jacked out using the exit cylinder of the pipe jacking machine. After the pipe jacking machine is detached from the pipe segment, there is still a long time before the casting of the tunnel gate ring beam, and there is a large gap around the pipe segment in this area. Before the steel plate structure was built, the tunnel gate was mostly sealed with bricks, which are easy to collapse when the grouting pressure is high after sealing, posing a certain risk. Utility Model Content

[0003] The utility model aims to provide a quick tunnel port plugging structure for receiving a jacking pipe, so as to solve the problem in the above-mentioned background technology that before the steel plate structure is available, tunnel ports are mostly sealed with bricks, which are easy to collapse when the grouting pressure is high after sealing, which is dangerous.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a jacking pipe receiving rapid tunnel door sealing structure, comprising a connecting steel plate and a fixed steel plate, the connecting steel plate and the fixed steel plate are welded, a grouting pipe is fixedly connected to the surface of the fixed steel plate, a ball valve is arranged on the surface of the grouting pipe, a connecting ring is movably connected to the surface of the grouting pipe, a delivery pipe is fixedly connected to the side of the fixed steel plate away from the grouting pipe, a connecting cover is connected to the surface passage of the delivery pipe, a block is elastically connected to the surface of the connecting cover, a clamping ring is fixedly connected to the surface of the connecting ring, a screw is penetrated and connected to the surface of the clamping ring, a cone block is fixedly connected to the inner wall of the clamping ring, the outer surface of the grouting pipe is fixedly connected to the fixed block, a slot is provided on the surface of the fixed block, a tension spring is fixedly connected to the inner side of the slot, a clamping block is fixedly connected to the surface of the tension spring, and a handle is fixedly connected to the surface of the clamping block.

[0005] Preferably, the grouting pipe and the conveying pipe passage are connected, the connecting steel plate and the fixing steel plate form an "L" shape, and the outer surface of the connecting cover is in an arc shape.

[0006] Preferably, the delivery pipe is connected via a connection cover and a stop block passage, the stop blocks are fan-shaped, and the stop blocks are evenly distributed at one end of the connection cover away from the delivery pipe.

[0007] Preferably, the connecting rings are arranged in two groups and are oppositely distributed on both sides of the grouting pipe, the surface of the clamping ring is in an arc shape, and the clamping ring is rotatably connected to the grouting pipe through the connecting ring.

[0008] Preferably, the cone blocks are evenly distributed on a side of the clamping ring close to the grouting pipe, and the screw rod penetrates the surface of the clamping ring and is connected with a nut through a threaded sleeve.

[0009] Preferably, the fixing block is connected to the bottom end surface of the grouting pipe in a block shape, the cross section of the clamping block is in a "U" shape, and the clamping block is abutted and connected with a connecting ring.

[0010] Preferably, the card block is plug-connected with the slot, the card block is elastically slidably connected with the slot via a tension spring, and the handle is in a semicircular ring shape and is connected to a side of the card block away from the fixed block.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. Through the connection between the connecting steel plate and the fixed steel plate, the embedded steel plate on the end face of the pipe segment and the steel ring of the tunnel gate are welded to achieve the effect of sealing. Through the connection between the grouting pipe and the ball valve, and the connection between the delivery pipe and the connecting cover, cement slurry is injected into the tunnel gate to ensure the sealing and water-stopping effect of the tunnel gate. Under the action of the resistance block, mud and sand are effectively prevented from entering the delivery pipe, thereby improving the injection performance of the grouting pipe and the ball valve.

[0013] 2. Through the rotational connection between the connecting ring and the grouting pipe, under the connection between the connecting ring and the clamping ring, and through the connection between the clamping ring and the cone block, the clamping and supporting effect of the sleeved pipe on the grouting pipe is realized. Under the action of the screw, the use form of the clamping ring is changed, and through the connection between the clamping block and the tension spring, and under the plug-in connection between the clamping block and the slot, the connection of the connecting ring on the fixed block is realized, thereby improving the convenience of using the connecting ring and the clamping ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view stereoscopic schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a partial three-dimensional cross-sectional schematic diagram of the structure of the utility model;

[0016] Figure 3 It is a partial rear perspective schematic diagram of the structure of the utility model;

[0017] Figure 4 It is a partial three-dimensional schematic diagram of the structure of the grouting pipe of the utility model;

[0018] Figure 5 For this utility model Figure 4 Schematic diagram of the enlarged structure at point A in the middle.

[0019] In the figure: 1. connecting steel plate; 2. fixing steel plate; 3. grouting pipe; 4. ball valve; 5. connecting ring; 51. retaining ring; 52. screw; 53. cone block; 54. fixing block; 55. slot; 56. tension spring; 57. clamping block; 58. handle; 6. conveying pipe; 7. connecting cover; 8. stop block. DETAILED DESCRIPTION

[0020] See also Figure 1-5 , an embodiment provided by the utility model:

[0021] A jacking pipe receiving rapid tunnel door sealing structure comprises a connecting steel plate 1 and a fixed steel plate 2, the connecting steel plate 1 and the fixed steel plate 2 are welded, a grouting pipe 3 is fixedly connected to the surface of the fixed steel plate 2, a ball valve 4 is arranged on the surface of the grouting pipe 3, a connecting ring 5 is movably connected to the surface of the grouting pipe 3, a delivery pipe 6 is fixedly connected to the side of the fixed steel plate 2 away from the grouting pipe 3, a connection cover 7 is connected to the surface of the delivery pipe 6, a stop block 8 is elastically connected to the surface of the connection cover 7, a clamping ring 51 is fixedly connected to the surface of the connecting ring 5, a screw 52 is penetrated and connected to the surface of the clamping ring 51, and the inner wall of the clamping ring 51 is fixedly connected to the inner wall of the clamping ring 51. A cone block 53 is connected, and a fixed block 54 is fixedly connected to the outer surface of the grouting pipe 3. A slot 55 is opened on the surface of the fixed block 54. A tension spring 56 is fixedly connected to the inner side of the slot 55. A clamping block 57 is fixedly connected to the surface of the tension spring 56. A handle 58 is fixedly connected to the surface of the clamping block 57. By connecting the steel plate 1 and the fixed steel plate 2, under the action of the fixed steel plate 2, the pre-embedded steel plate on the end face of the pipe section and the steel ring of the tunnel gate are welded to achieve a sealing effect. Under the action of the grouting pipe 3 and the ball valve 4, the passages of the grouting pipe 3 and the conveying pipe 6 are connected to complete the injection and sealing operation of the tunnel opening.

[0022] Furthermore, the grouting pipe 3 and the conveying pipe 6 are connected through a passage, the connecting steel plate 1 and the fixed steel plate 2 form an "L" shape, and the outer surface of the connecting cover 7 is in an arc shape. The grouting pipe 3 and the conveying pipe 6 are connected through a passage, and under the connection of the conveying pipe 6 and the connecting cover 7, the cement slurry is poured to ensure the sealing and water-stopping effects of the tunnel gate.

[0023] Furthermore, the delivery pipe 6 is connected through the connection cover 7 and the stop block 8. The stop block 8 is fan-shaped and is evenly distributed at the end of the connection cover 7 away from the delivery pipe 6. Through the connection between the delivery pipe 6 and the connection cover 7 and the connection between the connection cover 7 and the stop block 8, the effect of regulating the effect of the effect size of the connection cover 7 is achieved to prevent mud and sand from entering the connection cover 7 and affecting the grouting pipe 3 and the delivery pipe 6 on the mud delivery operation.

[0024] Furthermore, the connecting rings 5 ​​are distributed in two opposite groups on both sides of the grouting pipe 3, the surface of the clamping ring 51 is in an arc shape, and the clamping ring 51 is rotatably connected to the grouting pipe 3 through the connecting ring 5. Through the connection between the connecting ring 5 and the grouting pipe 3, and under the connection between the connecting ring 5 and the clamping ring 51, the binding and supporting effect of the connecting pipe on the grouting pipe 3 is achieved.

[0025] Furthermore, the cone blocks 53 are evenly distributed on one side of the clamping ring 51 close to the grouting pipe 3, and the screw 52 passes through the surface of the clamping ring 51 and is connected with a nut through a threaded sleeve. Through the connection between the clamping ring 51 and the cone blocks 53, and the action of the cone blocks 53, the clamping and supporting stability of the pipe on the grouting pipe 3 by the clamping ring 51 is improved.

[0026] Furthermore, the fixed block 54 is connected to the bottom end surface of the grouting pipe 3 in a block shape, the cross-section of the clamping block 57 is in a "U" shape, the clamping block 57 and the connecting ring 5 are abutted and connected, and through the connection between the fixed block 54 and the grouting pipe 3, and the plug-in connection between the slot 55 and the clamping block 57, the connection support effect of the connecting ring 5 on the fixed block 54 is achieved.

[0027] Furthermore, the card block 57 and the slot 55 are plug-in connected, and the card block 57 is elastically slidably connected to the slot 55 via a tension spring 56. The handle 58 is semicircular and connected to the side of the card block 57 away from the fixed block 54. Under the connection between the slot 55 and the tension spring 56, the elastic sliding effect of the card block 57 on the fixed block 54 is achieved through the action of the tension spring 56, thereby achieving the effect of controlling the use status of the connecting ring 5 and the card ring 51.

[0028] Working principle: When sealing the hole, weld the connecting steel plate 1 and the fixing steel plate 2 between the embedded steel plate on the end face of the pipe segment and the steel ring of the hole gate. Through the connection between the grouting pipe 3 and the delivery pipe 6, under the action of the ball valve 4, it is convenient to inject mud into the hole. Under the action of the connecting cover 7 and the stop block 8, the inflow of mud and sand into the connecting cover 7 is reduced without affecting the injection. Under the connection between the connecting ring 5 and the clamping ring 51, through the connection between the clamping ring 51 and the cone block 53, and the connection between the clamping ring 51 and the screw 52, ​​the clamping ring 51 clamps and supports the connecting pipe on the grouting pipe 3. Under the connection between the fixing block 54 and the slot 55, through the action of the tension spring 56 and the clamping block 57, the connection between the connecting ring 5 and the fixing block 54 is facilitated, thereby improving the convenience of the connection between the connecting ring 5 and the clamping ring 51 on the grouting pipe 3.

Claims

1. A jacking pipe receiving rapid tunnel door blocking structure, comprising a connecting steel plate and a fixing steel plate, characterized in that: The connecting steel plate and the fixed steel plate are welded, a grouting pipe is fixedly connected to the surface of the fixed steel plate, a ball valve is provided on the surface of the grouting pipe, a connecting ring is movably connected to the surface of the grouting pipe, a delivery pipe is fixedly connected to the side of the fixed steel plate away from the grouting pipe, a connecting cover is connected to the surface passage of the delivery pipe, a stop block is elastically connected to the surface of the connecting cover, a clamping ring is fixedly connected to the surface of the connecting ring, a screw is penetrated and connected to the surface of the clamping ring, a cone block is fixedly connected to the inner wall of the clamping ring, a fixed block is fixedly connected to the outer surface of the grouting pipe, a slot is provided on the surface of the fixed block, a tension spring is fixedly connected to the inner side of the slot, a clamping block is fixedly connected to the surface of the tension spring, and a handle is fixedly connected to the surface of the clamping block.

2. A jacking pipe receiving rapid tunnel door sealing structure according to claim 1, characterized in that: The grouting pipe is connected to the conveying pipe passage, the connecting steel plate and the fixing steel plate form an "L" shape, and the outer surface of the connecting cover is in an arc shape.

3. A jacking pipe receiving rapid tunnel door sealing structure according to claim 1, characterized in that: The delivery pipe is connected through a connection cover and a stop block passage, the stop blocks are fan-shaped, and the stop blocks are evenly distributed at one end of the connection cover away from the delivery pipe.

4. A jacking pipe receiving rapid tunnel door sealing structure according to claim 1, characterized in that: The connecting rings are arranged in two groups and are oppositely distributed on both sides of the grouting pipe. The surface of the clamping ring is in an arc shape. The clamping ring is rotatably connected to the grouting pipe through the connecting ring.

5. The rapid tunnel door sealing structure for jacking pipe receiving according to claim 1 is characterized in that: The cone blocks are evenly distributed on one side of the clamping ring close to the grouting pipe, and the screw rod penetrates through the surface of the clamping ring and is connected with a nut through a thread sleeve.

6. The rapid tunnel door sealing structure for jacking pipe receiving according to claim 1 is characterized by: The fixing block is block-shaped and connected to the bottom surface of the grouting pipe. The cross section of the clamping block is U-shaped. The clamping block is abutted and connected with the connecting ring.

7. The rapid tunnel door sealing structure for jacking pipe receiving according to claim 1 is characterized by: The clamping block is plug-connected with the slot, the clamping block is elastically slidably connected with the slot via a tension spring, and the handle is in a semicircular ring shape and is connected to a side of the clamping block away from the fixed block.

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