Water stop device of tube push bench

Abstract

The utility model discloses a water stop device of a pipe jacking machine, which belongs to the technical field of pipe jacking machines and comprises a well wall, a hole is arranged on one side of the well wall, a mounting plate is mounted on one side of the well wall, an inner ring is fixedly sleeved in the middle of the mounting plate, and the end of the inner ring extends to an inner cavity of the hole. The inner side of the inner ring is sleeved with pipe jacking machine equipment. According to the utility model, the smooth sleeve and the sealing ring are matched to seal the pipe push bench equipment, the oil pump is utilized to continuously pump out lubricating oil in the oil storage tank, the lubricating oil is guided into the oil distribution groove from the oil guide pipe, and the lubricating oil in the oil distribution groove is extruded out from the oil distribution hole; the smooth sleeve and the sealing ring are lubricated through lubricating oil guided out of the oil distribution holes, the friction force among the smooth sleeve, the sealing ring and the pipe jacking machine equipment is reduced, and the situation that the sealing effect is affected due to abrasion among the smooth sleeve, the sealing ring and the pipe jacking machine equipment is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe jacking machines, and more specifically, to a water stopping device for a pipe jacking machine. Background Art

[0002] A pipe jacking machine is a type of tunnel construction machinery that can excavate a tunnel of a certain length underground. The exit of the pipe jacking machine head from the tunnel is the only way for construction and is also an important factor affecting the quality of tunnel construction. The pipe jacking machine will be surrounded by soil pressure during the jacking process, and the tunnel entrance faces higher water pressure, which is prone to water seepage.

[0003] After searching, the utility model patent with publication number CN220551494U discloses a water-stopping device for a pipe jacking machine, comprising a well wall, a tunnel portal opened on one side wall of the well wall, and a precast concrete wall provided on one side wall of the well wall close to the tunnel portal, the precast concrete wall being located on the outside of the tunnel portal opening, a pipe jacking machine device being provided through the inner side of the tunnel portal, a driving end on one side of the pipe jacking machine device being embedded in the interior of the well wall, an inner ring being provided on the outer side of the pipe jacking machine device, the inner ring being located inside the tunnel portal, and an outer disk being fixedly sleeved on the outer wall on one side of the inner ring, the outer disk being located outside the tunnel portal opening, and one side wall of the outer disk being in contact with the surface of the precast concrete wall, a water-stopping component being provided on the outer wall on one side of the inner ring, and an auxiliary component being provided at the top connection between the inner ring and the outer disk; through the provided inner ring and outer disk, the main structure on it can be supported while the horizontal penetration and jacking action of the pipe jacking machine device at the tunnel portal on the well wall can be achieved.

[0004] However, the above patent has the following shortcomings: friction will occur between the smooth sleeve and the pipe jacking machine. When the smooth sleeve is worn, a gap will be formed between the smooth sleeve and the pipe jacking machine, which may easily cause water seepage. It is also difficult to drain the water accumulated at the hole in time. To address this problem, we have proposed a water-stopping device for pipe jacking machines. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a water-stopping device for a pipe jacking machine.

[0006] In order to solve the above problems, the present invention adopts the following technical solutions:

[0007] A pipe jacking machine water-stopping device, comprising a well wall, a hole opening on one side of the well wall, a mounting plate installed on one side of the well wall, an inner ring fixedly sleeved on the middle part of the mounting plate, the end of the inner ring extending to the inner cavity of the hole opening, a pipe jacking machine device sleeved on the inner side of the inner ring, an inflatable sealing mechanism provided on the mounting plate and the inner ring, a water pumping mechanism provided on the mounting plate, a sealing ring fixedly sleeved on the inner side of the inner ring, a smooth sleeve fixedly connected to the inner side of the sealing ring, and a sealing ring fixedly connected to the inner side of the sealing ring. The sealing ring is fitted with the end of the smooth sleeve, an oil distribution groove is provided inside the sealing ring, a plurality of oil distribution holes are provided on the outside of the sealing ring, the ends of the oil distribution holes are communicated with the inner cavity of the oil distribution groove, an oil storage tank is fixedly connected to the outer side of the mounting plate, an oil pump is fixedly installed on the bottom surface of the oil storage tank, an input end of the oil pump extends to the inner cavity of the oil storage tank, an output end of the oil pump is fixedly connected to an oil guide pipe, an end of the oil guide pipe is fixedly sleeved to the inner cavity of the oil distribution groove, and a support mechanism is provided on the outer side of the inner ring.

[0008] As a preferred solution of the present invention, the pumping mechanism includes a water pump fixedly mounted on the outside of the mounting plate, the input end of the water pump is fixedly connected to a water pump pipe, the end of the water pump pipe extends to the inner cavity of the hole, and the output end of the water pump is fixedly connected to a drain pipe.

[0009] As a preferred solution of the present invention, the support mechanism includes multiple electric push rods fixedly installed on the side of the inner ring, and the output ends of the multiple electric push rods are respectively fixedly connected to push seats, and the end faces of the push seats are in contact with the inner wall of the hole.

[0010] As a preferred solution of the present invention, the inflation sealing mechanism includes an annular airbag fixedly sleeved on the outside of the inner ring and an air compressor fixedly installed on the outside of the mounting plate. The output end of the air compressor is fixedly connected to an air guide tube, and the end of the air guide tube is fixedly sleeved to the inner cavity of the annular airbag. The outer surface of the annular airbag fits the inner wall of the hole.

[0011] As a preferred solution of the present invention, a plurality of bolts are sleeved on the mounting plate, and the ends of the plurality of bolts are threadedly mounted to the interior of the well wall.

[0012] As a preferred solution of the present invention, a threaded plug is threadedly mounted on the top surface of the oil storage tank, and the bottom end of the threaded plug extends to the inner cavity of the oil storage tank.

[0013] As a preferred solution of the present invention, the outer side surface of the pipe jacking machine equipment is respectively in contact with the inner wall of the smooth sleeve and the sealing ring.

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] (1) In the present invention, the pipe jacking machine equipment is sealed by the cooperation of the smooth sleeve and the sealing ring. In addition, the lubricating oil in the oil storage tank is continuously extracted by the oil pump, and the lubricating oil is introduced into the oil distribution tank from the oil guide pipe. The lubricating oil in the oil distribution tank is squeezed out from the oil distribution hole. The lubricating oil guided out from the oil distribution hole is used to lubricate the smooth sleeve and the sealing ring, thereby reducing the friction between the smooth sleeve, the sealing ring and the pipe jacking machine equipment, and avoiding wear between the smooth sleeve, the sealing ring and the pipe jacking machine equipment to affect the sealing effect.

[0016] (2) In the present invention, by using a water pump, a drainage pipe and a water pump together, when a pipe jacking machine is used for pipe jacking construction, the water pump is used to make the drainage pipe generate suction to extract the wastewater in the hole, and the wastewater is stored externally, thereby realizing active cleaning of the wastewater in the hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the installation disk of the utility model;

[0020] Figure 4 This is a schematic cross-sectional view of the sealing ring of the utility model;

[0021] Figure 5 It is a cross-sectional schematic diagram of the oil storage tank of the utility model.

[0022] Description of the numbers in the figure:

[0023] 1. Well wall; 2. Hole opening; 3. Mounting plate; 4. Inner ring; 5. Inflatable sealing mechanism; 6. Pumping mechanism; 7. Pipe jacking equipment; 8. Sealing ring; 9. Smooth sleeve; 10. Sealing ring; 11. Oil distribution hole; 12. Oil distribution tank; 13. Oil storage tank; 14. Oil pump; 15. Oil guide pipe; 16. Water pump; 17. Drain pipe; 18. Water pump; 19. Support mechanism; 20. Electric push rod; 21. Push seat; 22. Annular airbag; 23. Air compressor; 24. Air guide pipe; 25. Bolt; 26. Threaded plug. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts are within the scope of protection of the present invention.

[0025] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0027] Example:

[0028] See also Figure 1-5 A pipe jacking machine water-stopping device includes a well wall 1, a hole 2 is opened on one side of the well wall 1, a mounting plate 3 is installed on one side of the well wall 1, an inner ring 4 is fixedly sleeved on the middle part of the mounting plate 3, the end of the inner ring 4 extends to the inner cavity of the hole 2, a pipe jacking machine device 7 is sleeved on the inner side of the inner ring 4, an inflatable sealing mechanism 5 is provided on the mounting plate 3 and the inner ring 4, a water pumping mechanism 6 is provided on the mounting plate 3, a sealing ring 8 is fixedly sleeved on the inner side of the inner ring 4, a smooth sleeve 9 is fixedly connected to the inner side of the sealing ring 8, a sealing ring 10 is fixedly connected to the inner side of the sealing ring 8, and a sealing ring 10 fits with the end of the smooth sleeve 9, an oil distribution groove 12 is opened inside the sealing ring 10, and a plurality of oil distribution holes 11 are opened on the outside of the sealing ring 10. The ends of the oil distribution holes 11 are connected to the inner cavity of the oil distribution groove 12, and the outer side of the mounting plate 3 is fixedly connected to the oil storage tank 13, and the bottom surface of the oil storage tank 13 is fixedly installed with an oil pump 14. The input end of the oil pump 14 extends to the inner cavity of the oil storage tank 13, and the output end of the oil pump 14 is fixedly connected to the oil guide pipe 15. The end of the oil guide pipe 15 is fixedly sleeved to the inner cavity of the oil distribution groove 12, and a support mechanism 19 is provided on the outside of the inner ring 4.

[0029] For details, please refer to Figures 1 to 3 The pumping mechanism 6 includes a water pump 16 fixedly mounted on the outside of the mounting plate 3 , the input end of the water pump 16 is fixedly connected to a water pump pipe 18 , the end of the water pump pipe 18 extends to the inner cavity of the hole 2 , and the output end of the water pump 16 is fixedly connected to a drain pipe 17 .

[0030] In this embodiment, the end of the drain pipe 17 can be placed in an external water storage tank to store the extracted waste water.

[0031] For details, please refer to Figure 3 The support mechanism 19 includes a plurality of electric push rods 20 fixedly mounted on the side of the inner ring 4 , and the output ends of the plurality of electric push rods 20 are respectively fixedly connected to push seats 21 , and the end faces of the push seats 21 fit the inner wall of the hole 2 .

[0032] In this embodiment, the electric push rod 20 is used to drive the push seat 21 to move, and the inner ring 4 is supported by the cooperation of multiple groups of electric push rods 20 and push seats 21 to ensure that the inner ring 4 and the hole 2 are concentrically arranged, thereby ensuring the sealing effect of the annular airbag 22, the smooth sleeve 9, and the sealing ring 10.

[0033] For details, please refer to Figures 1 to 3 The inflation sealing mechanism 5 includes an annular airbag 22 fixedly sleeved on the outside of the inner ring 4 and an air compressor 23 fixedly installed on the outside of the mounting plate 3. The output end of the air compressor 23 is fixedly connected to an air guide tube 24. The end of the air guide tube 24 is fixedly sleeved to the inner cavity of the annular airbag 22. The outer surface of the annular airbag 22 fits the inner wall of the hole 2.

[0034] In this embodiment, gas is filled into the annular airbag 22 by an air compressor 23 , and the expansion of the annular airbag 22 is utilized to ensure the sealing between the inner ring 4 and the inner wall of the hole 2 .

[0035] For details, please refer to Figure 1 and Figure 3 A plurality of bolts 25 are sleeved on the mounting plate 3 , and the ends of the plurality of bolts 25 are threadedly mounted to the interior of the well wall 1 .

[0036] In this embodiment, the mounting plate 3 is mounted on the well wall 1 by using bolts 25 .

[0037] For details, please refer to Figure 5 A threaded plug 26 is threadedly installed on the top surface of the oil storage tank 13, and the bottom end of the threaded plug 26 extends to the inner cavity of the oil storage tank 13.

[0038] In this embodiment, lubricating oil is added to the inner cavity of the oil storage tank 13 by removing the threaded plug 26 .

[0039] For details, please refer to Figure 2 and Figure 3 The outer side surface of the pipe jacking machine equipment 7 is respectively in contact with the inner wall of the smooth sleeve 9 and the sealing ring 10.

[0040] In this embodiment, the sealing between the smooth sleeve 9, the sealing ring 10 and the pipe jacking machine equipment 7 is ensured.

[0041] Working principle: When in use, first insert the inner ring 4 on the mounting plate 3 into the hole 2, so that the side of the mounting plate 3 fits with the side of the well wall 1, and at the same time start multiple electric push rods 20 to drive multiple push seats 21 to move, so that the end face of the push seat 21 is against the inner wall of the hole 2, and the inner ring 4 is supported by the push seat 21 and the electric push rod 20, and then the bolt 25 is threadedly installed into the well wall 1 to fix the mounting plate 3, and at the same time, the air compressor 23 is used to fill the annular airbag 22 with gas, so that the annular airbag 22 expands and fits with the inner wall of the hole 2, and the inner ring 4 and the inner wall of the hole 2 are sealed, and then the pipe jacking machine equipment 7 is extended from the inner side of the inner ring 4 into the inner cavity of the hole 2, and at the same time, the pipe jacking machine equipment 7 is used Pipe jacking is carried out in the well wall 1, and the smooth sleeve 9 and the sealing ring 10 are used to seal the pipe jacking machine equipment 7 and the inner ring 4. In addition, the oil pump 14 is started to continuously extract the lubricating oil in the oil storage tank 13, and the lubricating oil is introduced into the oil distribution groove 12 from the oil guide pipe 15. The lubricating oil in the oil distribution groove 12 is squeezed out from the oil distribution hole 11, and the lubricating oil guided out from the oil distribution hole 11 lubricates the smooth sleeve 9 and the sealing ring 10 to avoid wear between the smooth sleeve 9, the sealing ring 10 and the pipe jacking machine equipment 7 that affects the sealing effect. Finally, the water pump 16 is started to make the water pump 18 generate suction, and the waste water in the hole 2 is extracted by the suction force of the water pump 18, and the waste water is introduced into the external collection box for storage by the drainage pipe 17.

[0042] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and improved ideas of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A water-stopping device for a pipe jacking machine, comprising a well wall (1), characterized in that: A hole (2) is provided on one side of the well wall (1), a mounting plate (3) is installed on one side of the well wall (1), an inner ring (4) is fixedly sleeved on the middle of the mounting plate (3), an end of the inner ring (4) extends to the inner cavity of the hole (2), a pipe jacking machine device (7) is sleeved on the inner side of the inner ring (4), an inflatable sealing mechanism (5) is provided on the mounting plate (3) and the inner ring (4), a water pumping mechanism (6) is provided on the mounting plate (3), a sealing ring (8) is fixedly sleeved on the inner side surface of the inner ring (4), a smooth sleeve (9) is fixedly connected to the inner side surface of the sealing ring (8), a sealing ring (10) is fixedly connected to the inner side surface of the sealing ring (8), and the sealing ring (10) and the smooth sleeve (9) are fixedly connected. The ends of the sliding sleeve (9) are fitted together, an oil distribution groove (12) is provided inside the sealing ring (10), a plurality of oil distribution holes (11) are provided on the outside of the sealing ring (10), the ends of the oil distribution holes (11) are connected to the inner cavity of the oil distribution groove (12), the outer side of the mounting plate (3) is fixedly connected to an oil storage tank (13), the bottom surface of the oil storage tank (13) is fixedly installed with an oil pump (14), the input end of the oil pump (14) extends to the inner cavity of the oil storage tank (13), the output end of the oil pump (14) is fixedly connected to an oil guide pipe (15), the end of the oil guide pipe (15) is fixedly sleeved to the inner cavity of the oil distribution groove (12), and a support mechanism (19) is provided on the outer side of the inner ring (4).

2. A water-stopping device for a pipe jacking machine according to claim 1, characterized in that: The water pumping mechanism (6) comprises a water pump (16) fixedly mounted on the outside of the mounting plate (3); an input end of the water pump (16) is fixedly connected to a water pump pipe (18); an end of the water pump pipe (18) extends to the inner cavity of the hole (2); and an output end of the water pump (16) is fixedly connected to a drain pipe (17).

3. A water-stopping device for a pipe jacking machine according to claim 2, characterized in that: The support mechanism (19) includes a plurality of electric push rods (20) fixedly mounted on the side of the inner ring (4), the output ends of the plurality of electric push rods (20) are respectively fixedly connected to push seats (21), and the end faces of the push seats (21) are in contact with the inner wall of the hole (2).

4. A water-stopping device for a pipe jacking machine according to claim 2, characterized in that: The inflation sealing mechanism (5) comprises an annular airbag (22) fixedly sleeved on the outside of the inner ring (4) and an air compressor (23) fixedly mounted on the outside of the mounting plate (3); an output end of the air compressor (23) is fixedly connected to an air guide tube (24); an end of the air guide tube (24) is fixedly sleeved to the inner cavity of the annular airbag (22); and an outer side surface of the annular airbag (22) is in contact with the inner wall of the hole (2).

5. The water-stopping device for a pipe jacking machine according to claim 1, characterized in that: A plurality of bolts (25) are sleeved on the mounting plate (3), and the ends of the plurality of bolts (25) are threadedly mounted to the interior of the well wall (1).

6. The water-stopping device for a pipe jacking machine according to claim 1, characterized in that: A threaded plug (26) is threadedly mounted on the top surface of the oil storage tank (13), and the bottom end of the threaded plug (26) extends into the inner cavity of the oil storage tank (13).

7. The water-stopping device for a pipe jacking machine according to claim 1, characterized in that: The outer side surface of the pipe jacking machine device (7) is respectively fitted with the inner walls of the smooth sleeve (9) and the sealing ring (10).

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