Device for extending tail pipe section to prevent pipe section from being separated from portal seal

Abstract

The utility model relates to the technical field of pipe jacking construction, in particular to a device for extending a tail pipe joint to prevent the pipe joint from being separated from a tunnel portal seal, which comprises a pipe joint and an extending steel ring, a grouting port is arranged on the surface of the pipe joint, a connecting piece is fixedly connected on the surface of the extending steel ring, curtain cloth is connected on the inner side of the extending steel ring in an embedded mode, and the curtain cloth is connected with the extending steel ring. The inner side surface of the extension steel ring is connected with a socket steel plate through a bolt, the surface of the extension steel ring is slidably connected with an adjusting frame, the surface of the adjusting frame is fixedly connected with a fixing rod, the surface of the fixing rod is fixedly connected with an inserting plate, and the surface of the inserting plate is fixedly connected with an inserting rod. According to the utility model, the extension steel ring and the socket steel plate are additionally arranged, the steel plate presses the portal curtain cloth, external underground water can be blocked by the portal curtain cloth, the back of the pipe joint is ensured to be dense by grouting the back of the pipe joint, and the risk of water and sand gushing is greatly reduced by cutting off the added extension steel ring.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe jacking construction, in particular to a device for extending a last pipe section to prevent the pipe section from being separated from a tunnel door seal. Background Art

[0002] When preventing pipe jacking, due to the influence of the length of the pipe section, if the length of the socket steel plate is not increased, the entire pipe section will fall out of the sealing system of the starting tunnel gate. After the seal fails, the surrounding groundwater will leak from the position of the starting tunnel gate, causing the risk of water and sand gushing. Utility Model Content

[0003] The purpose of the utility model is to provide a device for extending the last pipe section to prevent the pipe section from escaping from the tunnel gate seal, so as to solve the problem proposed in the above-mentioned background technology that the entire pipe section will escaping from the initial tunnel gate sealing system. After the seal fails, the surrounding groundwater will leak from the position of the initial tunnel gate, resulting in the risk of water and sand gushing.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for extending the last pipe section to prevent the pipe section from escaping from the tunnel door seal, comprising a pipe section and an extended steel ring, a grouting port being provided on the surface of the pipe section, a connecting piece being fixedly connected to the surface of the extended steel ring, a curtain being embeddedly connected to the inner side of the extended steel ring, a socket steel plate being connected to the inner surface of the extended steel ring by bolts, an adjusting frame being slidably connected to the surface of the extended steel ring, a fixing rod being fixedly connected to the surface of the fixing rod, a plug plate being fixedly connected to the surface of the plug plate, and the plug rod being fixedly connected to the surface of the plug plate.

[0005] Preferably, a steel ring is fixedly connected to a side of the pipe segment close to the extended steel ring, a surface of the connecting piece is in an arc shape, and a protrusion is fixedly connected to a side of the connecting piece close to the pipe segment.

[0006] Preferably, a boss is integrally connected to the outer surface of the pipe joint, and the connecting piece is snap-connected to the pipe joint via the boss and the boss; a groove is provided on the side of the boss on the pipe joint surface away from the extended steel ring, and the boss and the groove are plug-connected.

[0007] Preferably, the cross-section of the extended steel ring is in a "Y" shape, a long groove is provided on the inner side of the extended steel ring, and the curtain is embedded in the inner side of the extended steel ring through the long groove.

[0008] Preferably, the socket steel plates are block-shaped and evenly distributed on the inner surface of the extended steel ring, the socket steel plates are connected by abutting the extended steel ring and the curtain cloth, and a through groove is penetrated through the side of the extended steel ring away from the pipe segment.

[0009] Preferably, the adjustment frame passes through the through slot and is fixedly connected to the fixing rod, the cross section of the adjustment frame is in a "T" shape, and the fixing rods are connected to the surface of the adjustment frame in two groups.

[0010] Preferably, the plug plate is in a plate shape and is abutted against the outer surface of the extended steel ring, and the plug rods are evenly distributed on the surface of the plug plate.

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

[0012] 1. By adding extended steel rings and socket steel plates, the steel plates press down the tunnel curtain, and the external groundwater can be blocked with the tunnel curtain. At the same time, by grouting behind the pipe joint to ensure that the back of the pipe joint is dense, and then cutting off the added extended steel ring greatly reduces the risk of water and sand gushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view stereoscopic schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a three-dimensional schematic diagram of the structure of the utility model from the back;

[0015] Figure 3 It is a partial three-dimensional exploded schematic diagram of the structure of the extended steel ring of the utility model;

[0016] Figure 4 It is a partial back perspective schematic diagram of the structure of the extended steel ring of the utility model;

[0017] Figure 5 It is a structural stereoscopic schematic diagram of the plug board of the utility model.

[0018] In the figure: 1. pipe joint; 2. extension steel ring; 3. grouting port; 4. connecting piece; 5. curtain cloth; 6. socket steel plate; 7. adjustment frame; 8. plug plate; 9. plug rod; 10. fixing rod. DETAILED DESCRIPTION

[0019] See also Figure 1-5 , an embodiment provided by the utility model:

[0020] A device for extending the end pipe section to prevent the pipe section from escaping from the seal of a tunnel door comprises a pipe section 1 and an extended steel ring 2, a grouting port 3 is provided on the surface of the pipe section 1, a connecting piece 4 is fixedly connected to the surface of the extended steel ring 2, a curtain 5 is embedded and connected to the inner side of the extended steel ring 2, a socket steel plate 6 is connected to the inner surface of the extended steel ring 2 by bolts, an adjusting frame 7 is slidably connected to the surface of the extended steel ring 2, a fixing rod 10 is fixedly connected to the surface of the adjusting frame 7, a plug plate 8 is fixedly connected to the surface of the fixing rod 10, and a plug rod 9 is fixedly connected to the surface of the plug plate 8, through the connection of the pipe section 1 and the grouting port 3, under the connection of the extended steel ring 2 and the connecting piece 4, the connecting piece 4 is used to achieve the connection effect between the extended steel ring 2 and the pipe section 1.

[0021] Furthermore, a steel ring is fixedly connected to one side of the pipe segment 1 close to the extended steel ring 2, the surface of the connecting piece 4 is in an arc shape, and a protrusion is fixedly connected to one side of the connecting piece 4 close to the pipe segment 1, and through the connection between the pipe segment 1 and the steel ring, and under the connection between the steel ring and the extended steel ring 2, the connection and support effect between the pipe segment 1 and the extended steel ring 2 is achieved by welding.

[0022] Furthermore, a boss is integrally connected to the outer surface of the pipe joint 1, and the connecting piece 4 is snap-connected to the pipe joint 1 via the boss and the boss. A groove is provided on the side of the boss on the surface of the pipe joint 1 away from the extended steel ring 2, and the boss and the groove are plug-connected. Through the connection between the pipe joint 1 and the grouting port 3, under the action of the groove on the pipe joint 1 and the connection between the boss and the groove on the connecting piece 4, the installation and positioning operation of the extended steel ring 2 on the pipe joint 1 is completed. Under the action of the grouting port 3, the waterproof grouting operation of the connection between the pipe joint 1 and the extended steel ring 2 is facilitated.

[0023] Furthermore, the cross-section of the extended steel ring 2 is in a "Y" shape, a long groove is provided on the inner side of the extended steel ring 2, and the curtain 5 is embedded in the inner side of the extended steel ring 2 through the long groove. Through the embedded connection between the extended steel ring 2 and the curtain 5, under the action of the curtain 5, the water is sealed, thereby improving its waterproof and anti-slip effects.

[0024] Furthermore, the socket steel plate 6 is evenly distributed in blocks on the inner surface of the extended steel ring 2. The socket steel plate 6 is connected by abutting the extended steel ring 2 and the curtain 5. A through groove is penetrated through the side of the extended steel ring 2 away from the pipe segment 1. Through the connection between the socket steel plate 6 and the extended steel ring 2 and the bolt connection on the socket steel plate 6, the installation support effect of the socket steel plate 6 on the extended steel ring 2 is achieved. Under the action of the socket steel plate 6, the barrier effect of the curtain 5 connected in the extended steel ring 2 is achieved.

[0025] Furthermore, the adjusting frame 7 passes through the through slot and is fixedly connected to the fixing rod 10. The cross section of the adjusting frame 7 is in a "T" shape. The fixing rod 10 is connected to the surface of the adjusting frame 7 in two groups. Through the connection between the adjusting frame 7 and the fixing rod 10, under the action of the fixing rod 10, the connection support effect between the plug plate 8 and the adjusting frame 7 is achieved.

[0026] Furthermore, the plug plate 8 is plate-shaped and abutted against the outer surface of the extended steel ring 2, and the plug rods 9 are evenly distributed on the surface of the plug plate 8. Under the connection between the adjustment frame 7 and the plug plate 8, through the connection between the plug plate 8 and the plug rods 9, the plug rods 9 are embedded into the soil through the adjustment frame 7, thereby achieving the positioning effect of the extended steel ring 2 during the installation operation, and facilitating the subsequent welding operation of the extended steel ring 2 and the steel ring on the pipe segment 1.

[0027] Working principle: when the extended steel ring 2 is installed and used, through the connection between the extended steel ring 2 and the adjusting frame 7, under the connection between the adjusting frame 7 and the fixed rod 10, the connection between the fixed rod 10 and the plug plate 8, and the connection between the plug plate 8 and the plug rod 9, the adjustment frame 7 is used to complete the regulation operation of the plug rod 9's action position, which is convenient for the interlocking connection between the plug rod 9 and the soil, so as to achieve the supporting and controlling effect on the action position of the extended steel ring 2. Under the connection between the extended steel ring 2 and the connecting piece 4, through the action of the connecting piece 4, the installation operation between the pipe segment 1 and the extended steel ring 2 is convenient. At this time, the extended steel ring 2 is in contact with the steel ring on the pipe segment 1, which is convenient for its welding operation. Under the connection between the grouting port 3 and the pipe segment 1, it is convenient to perform waterproofing injection operation on the connection between the pipe segment 1 and the extended steel ring 2 through the grouting port 3, so as to achieve the effect of waterproofing and preventing the pipe segment 1 from falling off.

Claims

1. A device for extending the last pipe section to prevent the pipe section from being separated from the tunnel door seal, comprising a pipe section and an extended steel ring, characterized in that: A grouting port is provided on the surface of the pipe joint, a connecting plate is fixedly connected to the surface of the extended steel ring, a curtain is embedded and connected to the inner side of the extended steel ring, a socket steel plate is connected to the inner surface of the extended steel ring by bolts, an adjusting frame is slidably connected to the surface of the extended steel ring, a fixing rod is fixedly connected to the surface of the adjusting frame, a plug plate is fixedly connected to the surface of the fixing rod, and a plug rod is fixedly connected to the surface of the plug plate.

2. A device for extending the end pipe section to prevent the pipe section from being separated from the tunnel door seal according to claim 1, characterized in that: A steel ring is fixedly connected to one side of the pipe segment close to the extended steel ring, a surface of the connecting piece is in an arc shape, and a protrusion is fixedly connected to one side of the connecting piece close to the pipe segment.

3. A device for extending the end pipe section to prevent the pipe section from being separated from the tunnel door seal according to claim 2, characterized in that: The outer surface of the pipe joint is integrally connected with a boss, and the connecting piece is snap-connected with the pipe joint via the boss and the boss. A groove is provided on the side of the boss on the pipe joint surface away from the extended steel ring, and the boss and the groove are plug-connected.

4. The device for extending the last pipe section to prevent the pipe section from being separated from the tunnel door seal according to claim 1, characterized in that: The cross section of the extended steel ring is in a "Y" shape, a long groove is provided on the inner side of the extended steel ring, and the curtain is embedded in the inner side of the extended steel ring through the long groove.

5. The device for extending the last pipe section to prevent the pipe section from being separated from the seal of the tunnel door according to claim 1, characterized in that: The socket steel plates are block-shaped and evenly distributed on the inner surface of the extended steel ring. The socket steel plates are connected by the extended steel ring and the curtain cloth. A through groove is formed on one side of the extended steel ring away from the pipe joint.

6. The device for extending the last pipe section to prevent the pipe section from being separated from the seal of the tunnel door according to claim 5, characterized in that: The adjustment frame passes through the through slot and is fixedly connected to the fixing rod. The cross section of the adjustment frame is in a "T" shape. The fixing rods are connected to the surface of the adjustment frame in two groups.

7. The device for extending the last pipe section to prevent the pipe section from being separated from the tunnel door seal according to claim 1, characterized in that: The inserting plate is in a plate shape and is connected to the outer surface of the extended steel ring, and the inserting rods are evenly distributed on the surface of the inserting plate.

Images