Sealing and water stopping mechanism for jacking intermediate jacking station

Abstract

The invention discloses a sealing and water stopping mechanism for jacking pipe intermediate jacking stations, and relates to the technical field of jacking pipe construction.The sealing and water stopping mechanism is characterized in that a jacking pipe used for fixing is arranged at the side end of a sealing ring, a plurality of abutting holes are formed in the sealing ring around the axis, the outer wall of the jacking pipe is connected with the intermediate jacking stations in a sleeving mode, and a plurality of sets of nuts are arranged in the abutting holes correspondingly; the nut is connected with the jacking pipe in an abutting mode, the side end of the nut is fixedly connected with a bolt, a plurality of threaded holes are formed in the two ends of the jacking pipe respectively, the inner walls of the threaded holes are in threaded connection with the bolt, the connecting pipe is fixedly connected with the inner wall of the jacking pipe, and the two ends of the connecting pipe are connected with the sealing rings in an abutting mode respectively. The piston does not make contact with the sealing ring, so that the sealing ring is prevented from being affected by the abutting force of the piston of the jack, and the sealing ring is protected from being damaged by the abutting force of the jack.

Description

Technical Field

[0001] The invention relates to the technical field of pipe jacking construction, and in particular to a sealing and water-stopping mechanism for a pipe jacking relay room. Background Art

[0002] Pipe jacking is a trenchless construction technology that is widely used in the laying of various pipelines such as urban underground water supply and drainage pipelines, natural gas and oil pipelines, and communication cables. This technology does not require large-scale excavation of the road surface and can cross roads, railways, rivers, ground buildings, underground structures, and various underground pipelines.

[0003] In the prior art, when a jacking pipe is under construction, multiple jacking pipes need to be spliced ​​together using a relay room. Rubber rings are often adhered to the joints between the relay room and the jacking pipe. The rubber rings can seal and waterproof the jacking pipe and the relay room. The jack on the relay room supports the jacking pipe by supporting the rubber ring, thereby achieving the effect of moving the jacking pipe.

[0004] However, when the jack moves against the jacking pipe, the rubber ring will be subjected to the resistance force of the jack. The resistance of the jack is large, and the rubber ring will be damaged or even cracked, resulting in poor sealing and water-stopping effect of the rubber ring between the relay room and the jacking pipe. Summary of the invention

[0005] The purpose of the present invention is to provide a sealing and water-stopping mechanism for a jacking pipe relay room, so as to solve the technical problem in the prior art that when the jack is used to push the jacking pipe to move, the rubber ring will be subjected to the supporting force of the jack. The supporting force of the jack is large, and the rubber ring will be damaged or even cracked, thereby causing the sealing and water-stopping effect of the rubber ring between the relay room and the jacking pipe to deteriorate.

[0006] The technical problem to be solved by the present invention can be achieved by the following technical solutions:

[0007] A sealing and water-stopping mechanism for a jacking pipe relay room, comprising:

[0008] A sealing ring, wherein a top pipe for fixing is arranged at the side end of the sealing ring, a plurality of supporting holes are opened around the axis of the sealing ring, and a relay room is sleeved and connected to the outer wall of the top pipe;

[0009] Nuts, wherein the nuts are provided in a plurality of groups and are respectively arranged in the abutting holes, the nuts are abutted and connected with the top pipes, bolts are fixedly connected to the side ends of the nuts, a plurality of threaded holes are respectively opened at both ends of the top pipes, and the inner walls of the threaded holes are threadedly connected with the bolts;

[0010] The connecting pipe is fixedly connected to the inner wall of the top pipe, and both ends of the connecting pipe are respectively abutted and connected with the sealing ring.

[0011] As a further solution of the present invention: the height of the nut is smaller than the height of the supporting hole, and a control groove is provided at the side end of the nut.

[0012] As a further solution of the present invention: a positioning groove is provided at a side end of the sealing ring, and abutment components are respectively provided at both ends of the connecting pipe, and the abutment components are abuttingly connected to the inner wall of the positioning groove.

[0013] As a further solution of the present invention: the supporting assembly includes: a spring, a positioning column and a positioning ring, the positioning ring is in the shape of a circular ring, the positioning ring is supported and connected with the inner wall of the positioning groove, and the positioning column is provided with several groups around the axis of the connecting tube, and the two ends of the positioning column are fixedly connected with the positioning ring and the spring respectively.

[0014] As a further solution of the present invention: a plurality of positioning holes are opened around the axis at both ends of the connecting tube, the inner wall of the positioning hole is slidably connected to the positioning column, and the inner wall of the positioning hole is fixedly connected to the side end of the spring.

[0015] As a further solution of the present invention: a pad is fixedly connected to the inner wall of the top pipe, the cross-sectional length of the pad is greater than the cross-sectional length of the connecting pipe, and the pad is fixedly connected to the inner wall of the connecting pipe.

[0016] As a further solution of the present invention: both ends of the pad are fixedly connected with mounting rings, the outer wall of the pad is provided with a plurality of hemispherical connecting grooves around the axis, the inner wall of the pad is fixedly connected with a sealing plate, the inner wall of the top tube is provided with a mounting groove, and the mounting ring is fixedly connected to the inner wall of the mounting groove.

[0017] As a further solution of the present invention: a mounting pad is fixedly connected to the inner wall of the mounting groove, and a plurality of supporting rings are fixedly connected to the outer wall of the mounting ring. The supporting rings are in the shape of a circular ring and have a semicircular cross section, and the supporting rings are in abutting connection with the mounting pad.

[0018] Beneficial effects of the present invention:

[0019] 1. Glue the sealing ring to the side end of the jacking pipe, install the jack on the relay room, align the piston on the jack with the supporting hole, the inner diameter of the supporting hole is larger than the diameter of the piston, when the jack moves against the jacking pipe, the jack inserts the piston into the supporting hole, the piston supports the jacking pipe, when the jacking pipe is moved by the jack, the piston and the sealing ring do not contact, thereby avoiding the sealing ring from being affected by the supporting force of the piston of the jack, thereby protecting the sealing ring from being damaged by the supporting force of the jack.

[0020] 2. When the construction of the jacking pipe and the relay room is completed, the worker controls the nut to rotate the bolt, and the nut rotates in the supporting hole. The bolt is fixed in the threaded hole through a threaded connection. Then the worker applies glue to the nut and the inner wall of the supporting hole, so that the nut further fixes the sealing ring to avoid the supporting hole opened by the sealing ring from not being fixed. The worker installs the connecting pipe on the inner wall of the jacking pipe, and the two ends of the connecting pipe are respectively supported by the sealing ring. The connecting pipe further avoids the sealing ring from insufficiently sealing and waterproofing the gap between the jacking pipe and the relay room by resisting the sealing ring. At the same time, since the thickness of the relay room is often thin, the connecting pipe can reinforce the jacking pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a top view of the overall structure of the present invention;

[0024] Figure 3 It is the AA cross-sectional view of the overall structure of the present invention;

[0025] Figure 4 For the present invention Figure 3 A schematic diagram of the structure at A;

[0026] Figure 5 For the present invention Figure 3 A schematic diagram of the structure at B;

[0027] Figure 6 It is a schematic diagram of the sealing ring structure of the present invention;

[0028] Figure 7 It is a schematic diagram of the structure of the abutting component of the present invention;

[0029] Figure 8 It is a schematic diagram of the structure of the pad of the present invention;

[0030] Fig. 9 It is a schematic diagram of the nut structure of the present invention.

[0031] In the figure: 1. jacking pipe; 2. relay room; 3. connecting pipe; 4. threaded hole; 5. bolt; 6. sealing ring; 7. nut; 8. positioning hole; 9. spring; 10. positioning column; 11. positioning ring; 12. supporting hole; 13. mounting groove; 14. mounting ring; 15. positioning groove; 16. pad; 17. sealing plate; 18. control groove; 19. mounting pad; 20. connecting groove; 21. supporting ring. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] like Figure 1-Figure 9 As shown, a sealing and water-stopping mechanism for a top pipe relay comprises: a sealing ring 6, a nut 7 and a connecting pipe 3,

[0034] A jacking pipe 1 for fixing is provided at the side end of the sealing ring 6. A plurality of abutting holes 12 are opened around the axis of the sealing ring 6. The outer wall of the jacking pipe 1 is sleeved and connected with a relay room 2. A plurality of groups of nuts 7 are provided and are respectively arranged in the abutting holes 12. The nuts 7 are abutted and connected with the jacking pipe 1. Bolts 5 are fixedly connected to the side ends of the nuts 7. A plurality of threaded holes 4 are respectively opened at both ends of the jacking pipe 1. The inner walls of the threaded holes 4 are threadedly connected with the bolts 5. The sealing ring 6 is adhered to the side end of the jacking pipe 1. The jack is installed on the relay room 2. The piston on the jack is aligned with the abutting hole 12. The inner diameter of the abutting hole 12 is larger than the diameter of the piston. When the jack abuts the jacking pipe 1 to move, the jack inserts the piston into the abutting hole 12. The piston abuts the jacking pipe 1. When the jacking pipe 1 is abutted and moved by the jack, the piston and the sealing ring 6 do not contact, thereby preventing the sealing ring 6 from being affected by the abutting force of the piston of the jack, thereby protecting the sealing ring 6 from being damaged by the abutting force of the jack.

[0035] The connecting pipe 3 is fixedly connected to the inner wall of the top pipe 1, and the two ends of the connecting pipe 3 are respectively abutted against the sealing ring 6. When the construction of the top pipe 1 and the relay room 2 is completed, the worker controls the nut 7 to rotate the bolt 5, and the nut 7 rotates in the abutting hole 12. The bolt 5 is fixed in the threaded hole 4 through a threaded connection, and then the worker applies glue to the nut 7 and the inner wall of the abutting hole 12, so that the nut 7 further fixes the sealing ring 6 to avoid the abutting hole 12 opened by the sealing ring 6 from not being fixed. The worker installs the connecting pipe 3 on the inner wall of the top pipe 1, and the two ends of the connecting pipe 3 are respectively abutted against the sealing ring 6. The connecting pipe 3 further avoids the sealing ring 6 from insufficiently sealing and waterproofing the gap between the top pipe 1 and the relay room 2 by abutting against the sealing ring 6. At the same time, since the thickness of the relay room 2 is often thin, the connecting pipe 3 can reinforce the top pipe 1.

[0036] In some specific embodiments, the height of the nut 7 is smaller than the height of the supporting hole 12, and a control groove 18 is provided at the side end of the nut 7. When glue is applied to the surface of the nut 7 and the inner wall of the supporting hole 12, in order to prevent the glue from protruding from the supporting hole 12, the size limit of the nut 7 can ensure that the glue is fixed in the supporting hole 12. The glue can also limit the nut 7 to prevent the nut 7 and the bolt 5 from rotating on their own, thereby causing the threaded connection between the bolt 5 and the threaded hole 4 to loosen. The worker can use a tool to insert it into the control groove 18 and then rotate the nut 7.

[0037] In some specific implementation schemes, a positioning groove 15 is opened at the side end of the sealing ring 6, and abutment components are respectively provided at both ends of the connecting pipe 3, and the abutment components are abutted and connected with the inner wall of the positioning groove 15. When the connecting pipe 3 is installed on the inner wall of the top pipe 1, the abutment component arranged on the connecting pipe 3 further abuts against the sealing ring 6 by abutting against the inner wall of the positioning groove 15, thereby ensuring that the sealing ring 6 is more fully abutted.

[0038] In some specific embodiments, the abutting component includes: a spring 9, a positioning column 10 and a positioning ring 11. The positioning ring 11 is in the shape of a circular ring. The positioning ring 11 is abutted and connected with the inner wall of the positioning groove 15. Several groups of positioning columns 10 are arranged around the axial line of the connecting pipe 3. The two ends of the positioning column 10 are fixedly connected with the positioning ring 11 and the spring 9 respectively. When the sealing ring 6 is in use, the sealing ring 6 will be subject to thermal expansion and contraction. When the sealing ring 6 expands, the sealing ring 6 abuts the positioning ring 11 to move. The positioning ring 11 is transmitted to the spring 9 through the positioning column 10. The elastic tension provided by the spring 9 ensures that the positioning ring 11 can always be abutted in the positioning groove 15. The abutment between the positioning ring 11 and the inner wall of the positioning groove 15 can seal the gap between the connecting pipe 3 and the sealing ring 6 to prevent water from penetrating between the connecting pipe 3 and the sealing ring 6.

[0039] In some specific embodiments, a plurality of positioning holes 8 are opened around the axis line at both ends of the connecting tube 3, the inner wall of the positioning hole 8 is slidably connected to the positioning column 10, and the inner wall of the positioning hole 8 is fixedly connected to the side end of the spring 9. When the sealing ring 6 expands and contracts due to thermal expansion and contraction, the positioning ring 11 slides along the inner wall of the positioning hole 8 with the positioning column 10, and the positioning column 10 presses against the spring 9 for compression. The spring 9 can buffer the thermal expansion and contraction of the sealing ring 6 to avoid the sealing ring 6 from directly pressing against the connecting tube 3 and causing damage during thermal expansion and contraction. The positioning column 10 presses against the inner wall of the positioning hole 8 to provide positioning support for the positioning ring 11, thereby preventing the positioning ring 11 from rotating or deviating in the positioning groove 15.

[0040] In some specific embodiments, a pad 16 is fixedly connected to the inner wall of the top pipe 1. The cross-sectional length of the pad 16 is greater than the cross-sectional length of the connecting pipe 3. The pad 16 is fixedly connected to the inner wall of the connecting pipe 3. When the water-stopping effect of the inner wall of the positioning ring 11 and the positioning groove 15 fails, the pad 16 fixed to the inner wall of the top pipe 1 can seal and water-stop the gap between the positioning ring 11 and the positioning groove 15, thereby achieving a secondary sealing and water-stopping effect.

[0041] In some specific implementation schemes, both ends of the pad 16 are fixedly connected with mounting rings 14, the outer wall of the pad 16 is provided with a plurality of connecting grooves 20 in the shape of a hemisphere around the axis, the inner wall of the pad 16 is fixedly connected with a sealing plate 17, the inner wall of the top pipe 1 is provided with a mounting groove 13, the mounting ring 14 is fixedly connected to the inner wall of the mounting groove 13, the pad 16 is fixed to the inner wall of the top pipe 1 and the connecting pipe 3 by glue, and in order to improve the effect of the glue on fixing the pad 16, the pad 16 is covered around the inner wall of the top pipe 1, and the glue is on The glue solidifies in the connecting groove 20, so that the glue connects the pad 16 to the inner wall of the top pipe 1 and the inner wall of the connecting pipe 3 when being fixed on the inner wall of the top pipe 1, so as to avoid the phenomenon that the glue directly fixes the pad 16 to the inner wall of the top pipe 1 and the connecting pipe 3, and the adhesiveness of the glue fails after long-term use, causing the pad 16 to fall off. In order to further fix the pad 16, the worker fixes the mounting ring 14 in the mounting groove 13, and finally, the worker fixes the sealing plate 17 at the connecting seam of the pad 16, so as to seal and waterproof the connecting seam of the pad 16.

[0042] In some specific embodiments, a mounting pad 19 is fixedly connected to the inner wall of the mounting groove 13, and a plurality of supporting rings 21 are fixedly connected to the outer wall of the mounting ring 14. The supporting ring 21 is in the shape of a circular ring and has a semicircular cross-section. The supporting ring 21 is supported and connected to the mounting pad 19. In order to further improve the sealing and water-stopping effect between the pad 16 and the top pipe 1, when the mounting ring 14 is fixed in the mounting groove 13, the supporting ring 21 fixed by the mounting ring 14 supports the mounting pad 19. The mounting pad 19 is deformed by the support of the supporting ring 21, so that the mounting pad 19 fills the mounting groove 13. When water penetrates between the pad 16 and the top pipe 1, the mounting ring 14 further seals and blocks the water by supporting the supporting ring 21 and the mounting pad 19.

[0043] In order to facilitate the understanding of the embodiments of this solution by those skilled in the art, the working principle of this solution is briefly described in combination with specific application scenarios:

[0044] Adhere the sealing ring 6 to the side end of the jacking pipe 1, install the jack on the relay room 2, align the piston on the jack with the abutting hole 12, the inner diameter of the abutting hole 12 is larger than the diameter of the piston, when the jack abuts the jacking pipe 1 to move, the jack inserts the piston into the abutting hole 12, the piston abuts the jacking pipe 1, when the jacking pipe 1 is abutted and moved by the jack, the piston and the sealing ring 6 are not in contact, when the construction of the jacking pipe 1 and the relay room 2 is completed, the worker controls the nut 7 to rotate the bolt 5, the nut 7 rotates in the abutting hole 12, the bolt 5 is fixed in the threaded hole 4 through a threaded connection, and then the worker applies glue to the nut 7 and the abutting hole 12, the size limit of the nut 7 can ensure that the glue is fixed in the abutting hole 12, the worker installs the connecting pipe 3 on the inner wall of the top pipe 1, and the two ends of the connecting pipe 3 are respectively abutted against the sealing ring 6, and the abutting assembly arranged on the connecting pipe 3 further abuts against the sealing ring 6 by abutting against the inner wall of the positioning groove 15, and the abutment of the positioning ring 11 and the inner wall of the positioning groove 15 can seal the gap between the connecting pipe 3 and the sealing ring 6, and the pad 16 is covered around the inner wall of the top pipe 1, and the glue solidifies in the connecting groove 20, so that when the glue is fixed on the inner wall of the top pipe 1, the pad 16 is connected to the top pipe 1 and the inner wall of the connecting pipe 3;

[0045] The piston and the sealing ring 6 do not contact, thereby preventing the sealing ring 6 from being affected by the piston resistance of the jack, thereby protecting the sealing ring 6 from being damaged by the resistance force of the jack. The two ends of the connecting pipe 3 are respectively resisted against the sealing ring 6. The connecting pipe 3 further resists the sealing ring 6 to further prevent the sealing ring 6 from insufficiently sealing and waterproofing the gap between the jacking pipe 1 and the relay room 2. At the same time, since the thickness of the relay room 2 is often thinner, the connecting pipe 3 can reinforce the jacking pipe 1.

[0046] Several embodiments of the present invention are described in detail above, but the embodiments of the present invention are not limited thereto and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A sealing and water-stopping mechanism for a jacking pipe relay, characterized in that: include: A sealing ring (6), wherein a top pipe (1) for fixing is provided at a side end of the sealing ring (6), a plurality of abutment holes (12) are provided around the axis of the sealing ring (6), and a relay room (2) is sleeved on the outer wall of the top pipe (1); Nuts (7), the nuts (7) are provided in a plurality of groups and are respectively arranged in the abutting holes (12), the nuts (7) are abuttingly connected to the top pipe (1), the side ends of the nuts (7) are fixedly connected with bolts (5), the two ends of the top pipe (1) are respectively provided with a plurality of threaded holes (4), the inner walls of the threaded holes (4) are threadedly connected with the bolts (5); A connecting pipe (3) is fixedly connected to the inner wall of the top pipe (1), and both ends of the connecting pipe (3) are respectively abutted and connected to sealing rings (6).

2. A sealing and water-stopping mechanism for a jacking pipe relay according to claim 1, characterized in that: The height of the nut (7) is smaller than the height of the supporting hole (12), and a control groove (18) is provided at the side end of the nut (7).

3. A sealing and water-stopping mechanism for a jacking pipe relay according to claim 1, characterized in that: A positioning groove (15) is provided at the side end of the sealing ring (6), and abutment components are respectively provided at both ends of the connecting pipe (3), and the abutment components are abuttingly connected to the inner wall of the positioning groove (15).

4. A sealing and water-stopping mechanism for a jacking pipe relay according to claim 3, characterized in that: The abutting assembly comprises: a spring (9), a positioning column (10) and a positioning ring (11); the positioning ring (11) is in the shape of a circular ring and is abutted against the inner wall of the positioning groove (15); a plurality of groups of positioning columns (10) are arranged around the axis of the connecting pipe (3); and the two ends of the positioning columns (10) are fixedly connected to the positioning ring (11) and the spring (9) respectively.

5. A sealing and water-stopping mechanism for a jacking pipe relay according to claim 4, characterized in that: A plurality of positioning holes (8) are provided around the axis at both ends of the connecting tube (3); the inner walls of the positioning holes (8) are slidably connected to the positioning columns (10); and the inner walls of the positioning holes (8) are fixedly connected to the side ends of the springs (9).

6. A sealing and water-stopping mechanism for a jacking pipe relay according to claim 1, characterized in that: A pad (16) is fixedly connected to the inner wall of the top pipe (1); the cross-sectional length of the pad (16) is greater than the cross-sectional length of the connecting pipe (3); and the pad (16) is fixedly connected to the inner wall of the connecting pipe (3).

7. A sealing and water-stopping mechanism for a jacking pipe relay according to claim 6, characterized in that: The two ends of the pad (16) are respectively fixedly connected with mounting rings (14); the outer wall of the pad (16) is provided with a plurality of connecting grooves (20) in the shape of a hemisphere around the axis; the inner wall of the pad (16) is fixedly connected with a sealing plate (17); the inner wall of the top pipe (1) is provided with a mounting groove (13); and the mounting ring (14) is fixedly connected to the inner wall of the mounting groove (13).

8. A sealing and water-stopping mechanism for a jacking pipe relay according to claim 7, characterized in that: The inner wall of the mounting groove (13) is fixedly connected with a mounting pad (19), and the outer wall of the mounting ring (14) is fixedly connected with a plurality of supporting rings (21), wherein the supporting rings (21) are in a circular ring shape and have a semicircular cross section, and the supporting rings (21) are in abutting connection with the mounting pad (19).

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