A relay room with a telescopic tube

Abstract

The present invention relates to a relay room with a telescopic tube, comprising an outer cylinder, a left cylinder, a right cylinder, a V-shaped combination ring structure, and a hinged sealing ring structure. The outer cylinder and the left cylinder are connected by a V-shaped combination ring structure and a guide sleeve, and the V-shaped combination ring structure is connected to the outer cylinder by a flange, and the outer cylinder and the right cylinder are connected by a hinged sealing ring structure, and are axially fixed by a half sleeve structure. The present invention is connected to the front and rear pipe section mud pipes by a flange, and can be passively telescoped or bent, thereby solving the problems of poor integrity of the hose, aging leakage, etc., and at the same time, it can make the connection of the relay room mud pipe more concise and convenient, making the jacking construction more efficient.

Description

Technical Field

[0001] The invention relates to a pipeline with expansion and contraction and bending functions, in particular to a mud pipeline suitable for use as a relay room during pipe jacking construction. Background Art

[0002] In the process of long-distance pipe jacking construction, a relay room is indispensable. The use of a relay room can effectively reduce the number of rear jacks. Therefore, in order to ensure the continuity and safety of jacking in the relay room, in addition to existing specifications, the handling method of the mud pipe in the relay room is particularly important.

[0003] The commonly used method for handling mud pipes in relay rooms is to bend a hose with good bending performance to reserve a certain length and then connect it to the mud pipes of the front and rear sections of the relay room. This method has very high requirements on the bending performance of the hose. At the same time, during the jacking and contraction of the relay room, the integrity of the hose and the mud pipes of the front and rear sections is poor. After the hose is bent multiple times, it is easy to cause mud leakage, thus affecting the construction progress and even the safety of personnel. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a relay room with a telescopic tube.

[0005] The technical solution of the present invention is: a relay room with a telescopic tube, comprising an outer cylinder, a left cylinder, a right cylinder, a V-shaped combination ring structure, and an articulated sealing ring structure. The outer cylinder and the left cylinder are connected by a V-shaped combination ring structure and a guide sleeve, and the V-shaped combination ring structure is connected to the outer cylinder by a flange, and the outer cylinder and the right cylinder are connected by a hinged sealing ring structure and are axially fixed by a half sleeve structure.

[0006] Furthermore, the V-shaped combination ring structure includes a V-shaped combination ring, a screw sleeve, and a gasket. The V-shaped combination ring is placed in the sealing groove of the outer cylinder and is in contact and connected with the outer wall of the left cylinder. The axial direction of the V-shaped combination ring is fixedly connected to the right flange on the left cylinder through the gasket and the screw sleeve.

[0007] Furthermore, the screw sleeve is axially provided with an external thread, which is connected to the outer cylinder body to fix the position of the guide sleeve, the washer, and the V-shaped combination ring.

[0008] Furthermore, the hinged sealing ring structure includes a hinged seal, a pressure block, and bolts. Two hinged seal pressure blocks are placed in the hinged sealing groove on the inner wall of the right end of the outer cylinder, and the middle pressure block is used to fix the two hinged seals through bolts.

[0009] Furthermore, the pressing block is radially provided with an oil injection hole, which plays a lubricating and protective role on the hinged seal by injecting grease.

[0010] Furthermore, the half sleeve structure includes a half sleeve, and bolt holes are opened at both ends of the half sleeve, and are fixedly connected to the right end surface of the outer cylinder and the flange on the inner side of the right cylinder respectively through bolts.

[0011] Furthermore, the inner walls at both ends of the outer cylinder are provided with sealing grooves and internal threads for installing a V-shaped combined sealing ring, a threaded sleeve, a guide sleeve, and a hinged sealing member.

[0012] Furthermore, both ends of the outer cylinder are respectively provided with a V-shaped combination ring and a hinged sealing ring, which are used for the mud and water pipeline to be advanced along with the relay room and for the hinged blocking of mud and water.

[0013] Furthermore, the inner cylinder wall at the left end of the outer cylinder body is provided with an internal thread for threaded connection with the threaded sleeve to fix the V-shaped combination ring, the guide sleeve and the washer.

[0014] Furthermore, two flanges are provided at the left end of the left cylinder, the left flange is used to connect the front pipe section pipeline of the relay room, and the right flange is used to connect the threaded sleeve, thereby connecting the outer cylinder.

[0015] Furthermore, the left end of the right cylinder is in a ball joint shape, which is used to cooperate with the mud and water pipeline to follow the hinge and bend in the relay room, and the right end is provided with a flange for connecting the rear pipe section pipeline in the relay room.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The present invention provides a passive telescopic device for mud pipes in relays during pipe jacking construction, which is connected to the mud pipes in front and rear pipe sections via flanges and can be passively telescoped or bent, thereby solving the problems of poor integrity, aging and leakage of the hoses, and at the same time making the connection of the mud pipes in relays simpler and more convenient, making the pipe jacking construction more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a cross-sectional schematic diagram of a relay room with a telescopic tube according to the present invention;

[0019] Figure 2 for Figure 1 A is an enlarged schematic diagram;

[0020] Figure 3 for Figure 1 The enlarged schematic diagram of point B in FIG.

[0021] Figure 4 This is a schematic diagram of the installation position of the present invention. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] like Figures 1 to 4As shown, a relay room with a telescopic tube includes: a left cylinder 1, a flange 2, a bolt 3, a flange 4, a screw sleeve 5, a gasket 6, a V-shaped combination ring 7, a guide sleeve 8, an outer cylinder 9, a right cylinder 10, an articulated seal 11 and an articulated seal 2 14, a pressure block 12, a bolt 13, a half sleeve 15, a bolt 16, a flange 17, a bolt 18, and a flange 19.

[0024] The left end of the outer cylinder 9 is equipped with a V-shaped combination ring 7, a guide sleeve 8 and a screw sleeve 5, and the right end is equipped with a pressure block 12, an articulated seal 11 and an articulated seal 2 14; the left cylinder 1 is provided with flanges 2 and 4, flange 2 is connected to the front section of the pipeline, and flange 4 can be connected to the screw sleeve 5 as needed; the left end of the right cylinder 10 is in a ball joint shape, which can bend the pipe section, and the right end flange 19 is connected to the rear section of the pipeline; the screw sleeve 5 is used to fix the guide sleeve 8, the gasket 6, and the V-shaped combination ring 7; the pressure block 12 is used to fix the two articulated seals 11 and the articulated seal 2 14, and it has an oil injection hole in the radial direction, which plays a lubricating and protective role on the articulated seal by injecting grease; the left end of the half sleeve 15 is connected to the outer cylinder 9, and the right end can be connected to the right cylinder 10 as needed through the connection with the flange 17.

[0025] See also Figures 1 to 4 , which is a schematic diagram of the device and its installation location. When the device needs to be used:

[0026] (1) Based on Figure 1 A in Figure 2 As shown, the guide sleeve 8, the washer 6, and the V-shaped combination ring 7 are sequentially installed into the sealing groove at the left end of the outer cylinder 9 and fixed by the screw sleeve 5 to prevent axial movement.

[0027] (2) Based on Figure 1 The B in Figure 3 As shown, bolts 13 are used to connect the pressing block 12 and the outer cylinder 9, so that the hinged seal 1 11 and the hinged seal 2 14 are installed in the sealing groove at the right end of the outer cylinder 9 through the pressing block 12.

[0028] (3) After the above two parts are installed, the right cylinder 10 and the left cylinder 1 are connected according to Figure 1 Install to the corresponding position as shown.

[0029] (4) After completing the above installation, Figure 4 The position shown is installed in the relay room 20, and the left cylinder 1 and the right cylinder 10 are fixed to the front and rear shells of the relay room 20 respectively by clamps.

[0030] (5) When the relay room 20 is advanced and bent, the operation is as follows:

[0031] (a) During the advancement of the relay room 20, the bolt 3 is removed. At this time, when the relay room 20 is extended or retracted, the left cylinder 1 of the device is slidably connected to the outer cylinder 9, and the right cylinder 10 is connected to the outer cylinder 9 by bolts 16 and 18 to remain stationary.

[0032] (b) When the relay room 20 needs to be bent, Figure 3 The bolts 16 and 18 on the half sleeve 15 are removed. When the relay room 20 is bent, the device Figure 1 B moves with the bending hinge of the relay room 20, and the left cylinder 1 and the outer cylinder 9 are connected by bolts 3 to keep them stationary.

Claims

1. A relay room with a telescopic tube, characterized in that: It includes an outer cylinder, a left cylinder, a right cylinder, a V-shaped combination ring structure, and an articulated sealing ring structure. The outer cylinder is connected to the left cylinder through a V-shaped combination ring structure and a guide sleeve, and the V-shaped combination ring structure is connected to the outer cylinder through a flange. The outer cylinder is connected to the right cylinder through an articulated sealing ring structure and is axially fixed by a half sleeve structure; the V-shaped combination ring structure includes a V-shaped combination ring, a screw sleeve, and a gasket. The V-shaped combination ring is placed in a sealing groove of the outer cylinder and is in contact with the outer wall of the left cylinder. The axial direction of the V-shaped combination ring is fixedly connected to the right flange on the left cylinder through a gasket and a screw sleeve; the screw sleeve is axially provided with an external thread and is connected to the outer cylinder to fix the position of the guide sleeve, the gasket, and the V-shaped combination ring; the articulated sealing ring structure It includes an articulated seal, a pressure block, and a bolt. Two articulated seal pressure blocks are placed in the articulated seal grooves on the inner wall of the right end of the outer cylinder, and the middle pressure block is used to fix the two articulated seals through bolts; the half sleeve structure includes a half sleeve, and bolt holes are opened at both ends of the half sleeve, and are fixedly connected to the right end face of the outer cylinder and the flange on the inner side of the right cylinder respectively through bolts; the inner walls at both ends of the outer cylinder are opened with sealing grooves and internal threads for installing V-shaped combination sealing rings, screw sleeves, guide sleeves, and articulated seals; V-shaped combination rings and articulated sealing rings are respectively installed at both ends of the outer cylinder, which are used to block external mud and water when the mud and water pipeline is bent and articulated; the inner wall of the left end of the outer cylinder is opened with an internal thread, which is threadedly connected with the screw sleeve to fix the V-shaped combination ring, guide sleeve and gasket.

2. The relay room with telescopic pipe according to claim 1, characterized in that: The pressing block is radially provided with an oil injection hole, which plays a lubricating and protective role on the hinged seal by injecting grease.

3. The relay room with telescopic pipe according to claim 1, characterized in that: The left cylinder has two flanges at the left end. The left flange is used to connect the front pipe section pipeline of the relay room, and the right flange is used to connect the threaded sleeve to connect the outer cylinder.

4. The relay room with telescopic pipe according to claim 1, characterized in that: The left end of the right cylinder is in a ball joint shape, which is used to cooperate with the mud and water pipeline to follow the hinge and bend in the relay room. The right end is provided with a flange for connecting the rear pipe section pipeline in the relay room.

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