Water removal device for vacuum chuck of shield tunneling machine

Abstract

The invention discloses a water removal device for a vacuum chuck of a shield tunneling machine, and relates to the technical field of water removal devices. The water removal device comprises a shell, the interior of the shell is divided into a water removal cavity b and a water collection cavity c which are communicated up and down, condenser bodies are fixedly arranged in the shell and at the position corresponding to the water removal cavity b, a water drainage pipe is arranged at the bottom end of the shell, and an electromagnetic valve is arranged on the water drainage pipe. The top of the shell is provided with an air inlet pipe and an air outlet pipe which are symmetrical in the width direction, the air inlet pipe and the air outlet pipe are both connected with the shell through rotary joints, steam enters the condenser body through the air inlet pipe, reduced liquid and gas are discharged to a water collecting cavity c through a discharging pipe of the condenser body, and the water collecting cavity c is communicated with the water collecting cavity c. And gas flows upwards from the water collection cavity c to the water removal cavity b and then flows out from the gas outlet pipe. The device can be better matched with a vacuum chuck and a vacuum pump for use, and the lubricating oil emulsification phenomenon of the vacuum pump is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of water removal devices, in particular to a water removal device used for a vacuum suction cup of a shield machine. Background Art

[0002] Shield machines are widely used in the construction of urban subway tunnels. During use, the shield machine cutter head scrapes and crushes the soil layer in front by cutting and rolling. The shield machine pushes the ring segments at the rear to propel itself forward. The screw conveyor discharges the debris in the soil bin. At the same time, the segment assembly machine assembles and supports the segments, thereby realizing the excavation work of the shield machine.

[0003] The segment assembly machine of a traditional shield machine uses a mechanical grab head or vacuum suction cup to grab and install the segments. The working principle of the vacuum suction cup is that after the vacuum cup contacts the segment, the entire circle of the seal on the suction cup is squeezed, forming a temporary closed space between the inner side of the seal and the segment. The vacuum system starts to work, sucking the air from the pressure-maintaining chamber, making the pressure inside the chamber significantly lower than the external atmospheric pressure. The external atmospheric pressure presses the segment against the surface of the suction cup, and the generated suction force is sufficient to overcome the deadweight of the segment and the vibration of the construction, thereby achieving a firm grip on the segment.

[0004] Because the environment inside the tunnel is humid, and after the assembled segments are transported to the designated location, mud and impurities are likely to gradually reach the surface. In order to ensure the safety of the suction cup grabbing the segments and the quality of the segments after assembly, the surface of the segments will be flushed before assembly, resulting in residual water on the surface of the segments.

[0005] A vacuum environment affects the natural state of water. Under vacuum conditions, water evaporates into gas, namely water vapor (also known as moist air). When the assembly machine's suction cup grabs the pipe segment and draws a vacuum, the residual water vapor on the surface of the segment enters the vacuum system pipeline along with the air. After entering the pump chamber, the water vapor is compressed by the pump chamber and converted back to water. During the operation of the vacuum pump, water vapor and oil molecules physically mix under the combined effects of mechanical stirring and temperature changes, forming an emulsion, which leads to the emulsification of the lubricating oil. The hazards of emulsified lubricating oil are as follows: a significant decrease in lubrication performance, deterioration of vacuum, corrosion and shortened equipment life, impaired system operation stability, and a significant increase in maintenance costs.

[0006] Because the pipe segments need to be assembled into pipelines, the vacuum suction cup and the vacuum pump need to be rotated, which makes the existing water removal device inconvenient to use with the vacuum suction cup and the vacuum pump. Summary of the Invention

[0007] The object of the present invention is to provide a water removal device for a vacuum suction cup of a shield machine to solve the problems raised in the prior art.

[0008] To achieve the above-mentioned object, the present invention provides the following technical solution: a dewatering device for a vacuum suction cup of a shield machine, comprising a shell, wherein the shell is divided into a dewatering chamber b and a water collecting chamber c which are connected to each other in an upper and lower manner, a condenser body is fixedly arranged in the shell and at the corresponding dewatering chamber b, a drain pipe is arranged at the bottom end of the shell, a solenoid valve is arranged on the drain pipe, and a symmetrical air inlet pipe and air outlet pipe are arranged on the top of the shell along the width direction, the shell is suspended in the air by means of the air inlet pipe and the air outlet pipe, the air inlet pipe is connected to the suction cup through a rotary joint 1, and the air outlet pipe is connected to a vacuum pump through a rotary joint 2, water vapor enters the condenser body through the air inlet pipe, and the restored liquid and gas are discharged to the water collecting chamber c through the discharge pipe of the condenser body, and the gas flows upward from the water collecting chamber c to the dewatering chamber b and then flows out from the air outlet pipe;

[0009] The air inlet pipe, the air outlet pipe and the drain pipe are in the same plane.

[0010] Furthermore, a partition is provided in the shell, and a through hole is provided on the partition. The partition divides the shell into an upper and lower water removal chamber b and a water collection chamber, and the through hole connects the water removal chamber b and the water collection chamber c.

[0011] Furthermore, the shell is provided with an upper opening a for installing a dewatering cylinder, and the dewatering cylinder is inserted into the dewatering chamber b through the upper opening a and the through hole in sequence, and the lower opening of the dewatering cylinder is connected to the water collecting chamber, and the side wall of the dewatering cylinder is provided with a splicing hole, and the splicing hole and the air outlet pipe are connected when the two are spliced, and the dewatering cylinder is provided with upper and lower dewatering mechanisms 1 and 2, and the dewatering cylinder is respectively provided with an upper opening and a lower opening, the upper opening is threadedly connected to a sealing cover, and the lower opening is connected to the water collecting chamber c.

[0012] Furthermore, the dewatering mechanism 1 controls the rotation of the dewatering mechanism 2, and the dewatering mechanism 1 includes a rotating shaft 1 and two symmetrical arc-shaped trays, wherein one of the arc-shaped trays is fixedly connected to the rotating shaft 1 through a connecting seat 1, and the other arc-shaped tray is rotatably connected to the rotating shaft 1 through a connecting seat 2, and the arc-shaped trays are provided with a receiving groove and a water squeezing net on the upper and lower sides, and a water absorbent member is placed in the receiving groove;

[0013] The edge of the arc-shaped tray is provided with several sliding holes along the height direction, and a connecting rod is slidably provided in the sliding hole. The bottom of the connecting rod is connected to the sliding hole through a spring, and also includes an extrusion block for entering the storage groove to extrude the water-absorbing component. The top of the connecting rod extends to the top of the arc-shaped tray and is fixedly connected to the extrusion block.

[0014] Furthermore, a power mechanism is provided on the shell and at the corresponding position of the rotating shaft 1. When the power mechanism is spliced ​​with the rotating shaft 1 and the connecting seat 2, it drives the rotating shaft 1 and the connecting seat 2 to rotate in opposite directions.

[0015] Furthermore, the power mechanism includes a support block, a support frame, a circular gear 1, a circular gear 2 and a belt, the housing is provided with a support block, the support block is provided with an axially movable support frame, the support frame is provided with a rotating shaft 2, a rotating shaft 3 and a motor, the support block moves along the central axis direction of the rotating shaft 2, a sleeve is provided on the rotating shaft 2, the rotating shaft 2 is connected to the rotating shaft 3 through a belt, a circular gear 1 is provided at a corresponding position on the rotating shaft 3, a circular gear 2 is provided at a corresponding position on the sleeve, the circular gear 1 and the circular gear 2 are meshed, and the end of the output shaft of the motor is fixedly connected to the rotating shaft 2;

[0016] An insert block 1 is provided on the end face of the second rotating shaft along the central axis, an insert block 2 is provided on the end face of the sleeve along the central axis, a socket 1 is provided in the end face of the first rotating shaft, and a socket 2 is provided in the end face of the second connecting seat. When the insert block 1 is plugged into the first socket and the insert block 2 is plugged into the second socket, the second rotating shaft drives the first rotating shaft to rotate, and the sleeve drives the second connecting seat to rotate. Adjustment holes are opened on the shell and the corresponding positions of the second rotating shaft.

[0017] Furthermore, the water removal mechanism 2 includes a water removal ball, a rotating shaft 4 and a driven plate. A water removal ball is provided in the water removal cylinder and above the water removal mechanism 1. The rotating shaft 4 is fixedly passed through one diameter of the water removal ball. A chamber for loading adsorbed carbon is provided in the water removal ball. A circle of power grooves is provided on the water removal ball. The power grooves are perpendicular to the rotating shaft 4. Several driven plates in a circular array are equidistantly provided in the power grooves. An active plate is fixed on one of the arc-shaped trays. When the arc-shaped tray flips, it drives the active plate to touch the driven plate and then push the driven plate to rotate the water removal ball.

[0018] Furthermore, a deformable elastic baffle is provided in the dewatering cylinder, which is used to block the power groove along the horizontal section of the power groove to ensure that the gas passes through the dewatering ball.

[0019] Furthermore, a door is provided on the side wall of the water removal ball for replacing the adsorbed carbon.

[0020] Furthermore, the water absorbing member is a water absorbing sponge.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention ensures that the drain pipe is always facing downward, ensuring that the discharge pipe of the condenser body is always facing downward, liquid water can be collected smoothly, and the device can be better used in conjunction with the vacuum suction cup and the vacuum pump; the dewatering mechanism one is driven to rotate intermittently by the dewatering mechanism two, saving energy; the water-absorbing member and the adsorbing carbon are used to dewater gases with different water contents in turn, thereby improving the dewatering effect, and automatically draining the water-absorbing member and flipping the dewatering ball equipped with the adsorbing carbon, thereby ensuring that the dewatering operation always maintains the best effect, thereby avoiding the lubricating oil emulsification phenomenon in the vacuum pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a front cross-sectional view of the present invention;

[0024] Figure 2 A three-dimensional diagram of the curved tray of the present invention;

[0025] Figure 3 is a cross-sectional view of the extrusion block of the present invention;

[0026] Figure 4 for Figure 3 A partial enlarged view of point A in the middle;

[0027] Figure 5 is a cross-sectional view of the interior of the present invention;

[0028] Figure 6 for Figure 5 A partial enlarged view of point B in the middle.

[0029] In the figure: 1. Shell; 2. Condenser body; 3. Drain pipe; 4. Inlet pipe; 5. Outlet pipe; 6. Discharge pipe; 7. Partition; 8. Through hole; 9. Water removal cylinder; 10. Joint hole; 11. Sealing cover; 12. Curved tray; 13. Rotating shaft 1; 14. Connecting seat 1; 15. Connecting seat 2; 16. Storage slot; 17. Water squeezing net; 18. Water absorbing element; 19. Sliding hole; 20. Connecting rod; 21. Spring 22. Extrusion block; 23. Support block; 24. Support frame; 25. Motor; 26. Rotating shaft 2; 27. Rotating shaft 3; 28. Sleeve; 29. ​​Circular gear 1; 30. Circular gear 2; 31. Socket 1; 32. Socket 2; 33. Insert block 1; 34. Insert block 2; 35. Adjustment hole; 36. Water removal ball; 37. Rotating shaft 4; 38. Driven plate; 39. Power slot; 40. Active plate; 41. Elastic baffle. DETAILED DESCRIPTION

[0030] 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 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 making creative efforts are within the scope of protection of the present invention.

[0031] like Figures 1-6 As shown, the present invention provides a dewatering device for a shield machine vacuum suction cup, comprising a shell 1, wherein the shell 1 is divided into a dewatering chamber b and a water collecting chamber c which are connected to each other in an upper and lower manner, a condenser body 2 is fixedly provided in the shell 1 and at the corresponding dewatering chamber b, a drain pipe 3 is provided at the bottom end of the shell 1, and a solenoid valve is provided on the drain pipe 3, and a symmetrical air inlet pipe 4 and air outlet pipe 5 are provided at the top of the shell 1 along the width direction, the shell 1 is suspended in the air by the air inlet pipe 4 and the air outlet pipe 5, the air inlet pipe 4 is connected to the suction cup through a rotary joint 1, and the air outlet pipe 5 is connected to the vacuum pump through a rotary joint 2, water vapor enters the condenser body 2 through the air inlet pipe 4, and the restored liquid and gas are discharged to the water collecting chamber c through the discharge pipe 6 of the condenser body 2, and the gas flows upward from the water collecting chamber c to the dewatering chamber b and then flows out from the air outlet pipe 5;

[0032] The air inlet pipe 4 , the air outlet pipe 5 and the drain pipe 3 are in the same plane.

[0033] A partition 7 is provided in the shell 1 , and a through hole 8 is provided on the partition 7 . The partition 7 divides the shell 1 into an upper and lower dewatering chamber b and a water collecting chamber c . The through hole 8 connects the dewatering chamber b with the water collecting chamber c .

[0034] The shell 1 is provided with an upper opening a for installing a dewatering cylinder 9, and the dewatering cylinder 9 is inserted into the dewatering chamber b through the upper opening a and the through hole 8 in sequence. The lower opening of the dewatering cylinder 9 is connected to the water collecting chamber, and the side wall of the dewatering cylinder 9 is provided with a splicing hole 10. The splicing hole 10 and the air outlet pipe 5 are connected when the two are spliced. The dewatering cylinder 9 is provided with upper and lower dewatering mechanisms 1 and 2. The dewatering cylinder 9 is respectively provided with an upper opening and a lower opening, the upper opening is threadedly connected to a sealing cover 11, and the lower opening is connected to the water collecting chamber c.

[0035] The dewatering mechanism 1 controls the rotation of the dewatering mechanism 2. The dewatering mechanism 1 includes a rotating shaft 13 and two symmetrical curved trays 12, one of the curved trays 12 is fixedly connected to the rotating shaft 13 via a connecting seat 14, and the other curved tray 12 is rotatably connected to the rotating shaft 13 via a connecting seat 2 15. The curved trays 12 are provided with a receiving groove 16 and a water squeezing net 17 on the upper and lower sides, and a water absorbent member 18 is placed in the receiving groove 16;

[0036] The edge of the arc-shaped tray 12 is provided with a plurality of sliding holes 19 along the height direction, and a connecting rod 20 is slidably provided in the sliding hole 19. The bottom of the connecting rod 20 is connected to the sliding hole 19 by a spring 21. It also includes an extrusion block 22 for entering the storage groove 16 to squeeze the water-absorbing component 18. The top of the connecting rod 20 extends to the top of the arc-shaped tray 12 and is fixedly connected to the extrusion block 22.

[0037] A power mechanism is provided on the housing 1 and at the corresponding position of the rotating shaft 13. When the power mechanism is connected with the rotating shaft 13 and the connecting seat 2 15, it drives the rotating shaft 13 and the connecting seat 2 15 to rotate in opposite directions.

[0038] The power mechanism includes a support block 23, a support frame 24, a circular gear 1 29, a circular gear 2 30 and a belt. The housing 1 is provided with a support block 23, and the support block 23 is provided with an axially movable support frame 24. The support frame 24 is provided with a rotating shaft 26, a rotating shaft 3 27 and a motor 25. The support block 23 moves along the central axis direction of the rotating shaft 26, and a sleeve 28 is rotatably provided on the rotating shaft 26. The rotating shaft 26 is connected to the rotating shaft 3 27 through a belt. A circular gear 1 29 is provided at a corresponding position on the rotating shaft 3 27, and a circular gear 2 30 is provided at a corresponding position on the sleeve 28. The circular gear 1 29 is meshed with the circular gear 2 30, and the end of the output shaft of the motor 25 is fixedly connected to the rotating shaft 2 26; the outer walls of the rotating shaft 2 26 and the sleeve 28 are both equipped with pulleys, and the belt is wound around the two pulleys so that the rotating shaft 2 26 and the sleeve 28 rotate simultaneously. A cylinder is provided in the support block 23, and the support frame 24 is driven to translate by the cylinder, which is the existing technology.

[0039] An insert block 1 33 is provided on the end face of the rotating shaft 26 along the central axis direction, and an insert block 2 34 is provided on the end face of the sleeve 28 along the central axis direction. A socket 1 31 is provided in the end face of the rotating shaft 13, and a socket 2 32 is provided in the end face of the connecting seat 2 15. When the insert block 1 33 is plugged into the socket 1 31 and the insert block 2 34 is plugged into the socket 2 32, the rotating shaft 26 drives the rotating shaft 13 to rotate, and the sleeve 28 drives the connecting seat 2 15 to rotate. Adjustment holes 35 are opened on the shell 1 and at corresponding positions of the rotating shaft 2 26.

[0040] The dewatering mechanism 2 includes a dewatering ball 36, a rotating shaft 4 37 and a driven plate 38. A dewatering ball 36 is provided in the dewatering cylinder 9 and above the dewatering mechanism 1. A rotating shaft 4 37 is fixedly passed through one diameter of the dewatering ball 36. A chamber for loading adsorbed carbon is provided in the dewatering ball 36. A circle of power grooves 39 is provided on the dewatering ball 36. The power grooves 39 are perpendicular to the rotating shaft 4 37. Several driven plates 38 are equidistantly provided in a circular array in the power grooves 39. An active plate 40 is fixed on one of the arc trays 12. When the arc tray 12 flips, it drives the active plate 40 to touch the driven plate 38 and then push the driven plate 38 to rotate the dewatering ball 36.

[0041] Furthermore, a deformable elastic baffle 41 is provided in the dewatering cylinder 9, which is used to block the power groove 39 along the horizontal section of the power groove 39 to ensure that the gas passes through the dewatering ball 36. When the dewatering ball 36 rotates, there is no driven plate 38 that can block the horizontal section of the power groove 39, and the elastic baffle 41 always blocks the horizontal section of the power groove 39; when the driven plate 38 passes through the elastic baffle 41, it pushes the elastic baffle 41, causing the elastic baffle 41 to deform. After the driven plate 38 has completely passed, the elastic force of the elastic baffle 41 itself drives it to reset.

[0042] Furthermore, a door is provided on the side wall of the water removal ball 36 for replacing the adsorbed carbon. This is a prior art method and is relatively simple and is not shown in the figure.

[0043] Furthermore, the water absorbing member 18 is a water absorbing sponge.

[0044] After the evaporation of air is finished, the evaporation of gas is finished, and ...

[0045] Embodiment 2: Different from Embodiment 1, an upper opening a is provided on the shell 1 and on the outer side of the condenser body 2; the water removal cylinder 9 is sequentially inserted through the upper opening a and the through hole 8, and the joints between the two are provided with sealing rings. The positions of the slots 1 and 2 can be observed and adjusted through the adjustment holes 35 so that the insert 1 33 is aligned with the slot 1 and the insert 2 34 is aligned with the slot 2;

[0046] When the vacuum pump is started, as the gas flows upward from the water collection chamber c to the water removal chamber b, it first passes through the water absorption mechanism 1, then through the water absorption mechanism 2, and finally flows out of the gas outlet pipe 5. When the gas passes through the sponge, some water remains in the sponge. When the gas passes through the adsorbent carbon, some water remains in the adsorbent carbon. As a result, the gas undergoes multiple water absorption operations, further reducing the water content of the gas and improving the gas dehydration efficiency. The three water removal processes for the wet air improve the dehydration efficiency, thereby reducing the water content of the gas entering the vacuum pump and ensuring the smooth operation of the vacuum pump.

[0047] After the vacuum pump stops, the support frame 24 moves along the width direction of the support block 23, thereby driving the second shaft 26 and the sleeve to pass through the adjustment hole 35, and the plug block 1 33 is plugged into the socket 1 31, and the plug block 2 34 is plugged into the socket 2 32. The motor 25 starts, driving the rotating shaft 2 26 and the belt to rotate, and the belt drives the rotating shaft 3 27 to rotate. The circular gear 1 (29) on the rotating shaft 3 27 is engaged with the circular gear 2 (30) on the sleeve to drive the rotating shaft 2 26 to rotate, and the rotating shaft 2 26 drives the plug block 1 33, the slot 1, the rotating shaft 13 and the connecting seat 14 to rotate in the positive direction. Rotate, the sleeve drives the insert block 2 34, the slot 2 and the connecting seat 2 15 to rotate in the opposite direction, and the connecting seat 14 and the connecting seat 2 15 drive the two arc-shaped trays 12 on both sides to rotate inward at the same time. In this process: 1. After the extrusion blocks 22 on both sides come into contact, a part of the extrusion block 22 begins to enter the receiving groove 16, squeezing the sponge in the receiving groove 16. The extrusion block 22 drives the connecting rod 20 to move downward along the sliding hole 19, and the spring 21 is in a stretched state until the extrusion blocks 22 on both sides enter the receiving groove 16 to complete the squeezing of the sponge; 2. Figure 1 In the figure, when the arc-shaped tray 12 on the right side rotates to the left, it drives the active block to rotate. After the active block contacts one of the driven blocks, it moves the driven block, thereby pushing the water removal ball 36 to rotate around the rotating shaft 4 37, thereby driving the water removal ball 36 to rotate a certain distance. The amount of adsorbed carbon filled in the water removal ball 36 is not less than two-thirds of the capacity of the water removal ball 36.

[0048] The output shaft of the motor 25 rotates in the reverse direction, and similarly drives the arc-shaped trays 12 on both sides to open outwards and reset at the same time, and the arc-shaped tray 12 on the right side drives the active block to rotate in the reverse direction and reset.

[0049] After the vacuum pump is started and stopped multiple times, that is, after the motor 25 is rotated forward and reversed multiple times, the water removal ball 36 rotates significantly, so that the upper hemisphere of the water removal ball 36 rotates to become the lower hemisphere, and the lower hemisphere rotates to become the upper hemisphere, so that the water removal ball 36 is evenly in contact with the gas from below, thereby improving the utilization rate and uniformity of the adsorbed carbon in the water removal ball 36.

[0050] It should be noted that if the embodiments of the invention involve directional indications such as up and down, the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0051] In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, scheme B, or schemes in which A and B are satisfied at the same time. In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, "multiple" refers to more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the invention.

Claims

1. A water removal device for a shield machine vacuum suction cup, characterized in that: The invention comprises a shell (1), wherein the shell (1) is divided into a dewatering chamber b and a water collecting chamber c which are connected to each other from top to bottom, a condenser body (2) is fixedly provided in the shell (1) and at the corresponding dewatering chamber b, a drain pipe (3) is provided at the bottom end of the shell (1), and a solenoid valve is provided on the drain pipe (3), and a symmetrical air inlet pipe (4) and air outlet pipe (5) are provided at the top of the shell (1) along the width direction, and the shell (1) is suspended in the air through the air inlet pipe (4) and the air outlet pipe (5), the air inlet pipe (4) is connected to the suction cup through a rotary joint 1, and the air outlet pipe (5) is connected to the vacuum pump through a rotary joint 2, and water vapor enters the condenser body (2) through the air inlet pipe (4), and the restored liquid and gas are discharged to the water collecting chamber c through the discharge pipe (6) of the condenser body (2), and the gas flows upward from the water collecting chamber c to the dewatering chamber b and then flows out from the air outlet pipe (5); The air inlet pipe (4), the air outlet pipe (5) and the drain pipe (3) are in the same plane.

2. The water removal device for the shield machine vacuum suction cup according to claim 1, characterized in that: A partition (7) is provided in the shell (1), and a through hole (8) is provided on the partition (7). The partition (7) divides the shell (1) into an upper and lower dewatering chamber b and a water collecting chamber, and the through hole (8) connects the dewatering chamber b with the water collecting chamber c.

3. The water removal device for the shield machine vacuum suction cup according to claim 2, characterized in that: The shell (1) is provided with an upper opening a for installing a dewatering cylinder (9), the dewatering cylinder (9) is inserted into the dewatering chamber b and passes through the upper opening a and the through hole (8) in sequence, the lower opening of the dewatering cylinder (9) is connected to the water collecting chamber, the side wall of the dewatering cylinder (9) is provided with a splicing hole (10), and the splicing hole (10) and the air outlet pipe (5) are connected when the two are spliced, the dewatering cylinder (9) is provided with upper and lower dewatering mechanisms 1 and 2, the dewatering cylinder (9) is provided with an upper opening and a lower opening respectively, the upper opening is threadedly connected to a sealing cover (11), and the lower opening is connected to the water collecting chamber c.

4. The water removal device for the shield machine vacuum suction cup according to claim 3, characterized in that: The dewatering mechanism 1 controls the rotation of the dewatering mechanism 2, and the dewatering mechanism 1 includes a rotating shaft 1 (13) and two symmetrical arc-shaped trays (12), one of the arc-shaped trays (12) is fixedly connected to the rotating shaft 1 (13) through a connecting seat 1 (14), and the other arc-shaped tray (12) is rotatably connected to the rotating shaft 1 (13) through a connecting seat 2 (15), and the arc-shaped tray (12) is provided with a receiving groove (16) and a water squeezing net (17) at the upper and lower sides, and a water absorbing member (18) is placed in the receiving groove (16); The edge of the arc-shaped tray (12) is provided with a plurality of sliding holes (19) along the height direction, and a connecting rod (20) is slidably provided in the sliding hole (19). The bottom of the connecting rod (20) is connected to the sliding hole (19) through a spring (21), and also includes an extrusion block (22) for entering the receiving groove (16) to squeeze the water-absorbing component (18). The top of the connecting rod (20) extends to the top of the arc-shaped tray (12) and is fixedly connected to the extrusion block (22).

5. The water removal device for the shield machine vacuum suction cup according to claim 4, characterized in that: A power mechanism is provided on the housing (1) and at the corresponding position of the rotating shaft (13). When the power mechanism is connected with the rotating shaft (13) and the connecting seat (15), it drives the rotating shaft (13) and the connecting seat (15) to rotate in opposite directions.

6. The water removal device for the shield machine vacuum suction cup according to claim 5, characterized in that: The power mechanism comprises a support block (23), a support frame (24), a circular gear 1 (29), a circular gear 2 (30) and a belt, the housing (1) is provided with a support block (23), the support block (23) is provided with an axially movable support frame (24), the support frame (24) is provided with a rotating shaft 2 (26), a rotating shaft 3 (27) and a motor (25), the support block (23) moves along the central axis direction of the rotating shaft 2 (26), the rotating shaft 2 (26) is provided with a sleeve (28) for rotation, the rotating shaft 2 (26) is connected to the rotating shaft 3 (27) through a belt, the rotating shaft 3 (27) is provided with a circular gear 1 (29) at a corresponding position, the sleeve (28) is provided with a circular gear 2 (30) at a corresponding position, the circular gear 1 (29) and the circular gear 2 (30) are meshed, and the end of the output shaft of the motor (25) is fixedly connected to the rotating shaft 2 (26); The end surface of the second rotating shaft (26) is provided with an insert block (33) along the central axis, the end surface of the sleeve (28) is provided with an insert block (34) along the central axis, the end surface of the first rotating shaft (13) is provided with a socket (31), the end surface of the second connecting seat (15) is provided with a socket (32), when the insert block (33) is plugged into the socket (31) and the insert block (34) is plugged into the socket (32), the second rotating shaft (26) drives the first rotating shaft (13) to rotate, and the sleeve (28) drives the second connecting seat (15) to rotate, and adjustment holes (35) are opened on the housing (1) and at corresponding positions of the second rotating shaft (26).

7. The water removal device for the shield machine vacuum suction cup according to claim 5, characterized in that: The dewatering mechanism 2 includes a dewatering ball (36), a rotating shaft 4 (37) and a driven plate (38). A dewatering ball (36) is provided in the dewatering cylinder (9) and above the dewatering mechanism 1. The dewatering ball (36) is fixed with a rotating shaft 4 (37) on one diameter thereof. A chamber for loading adsorbed carbon is provided in the dewatering ball (36). A circle of power grooves (39) is provided on the dewatering ball (36). The power grooves (39) are perpendicular to the rotating shaft 4 (37). A plurality of driven plates (38) are equidistantly provided in a circular array in the power grooves (39). An active plate (40) is fixed on one of the arc trays (12). When the arc tray (12) turns over, the active plate (40) is driven to touch the driven plate (38) and then push the driven plate (38) to rotate the dewatering ball (36).

8. The water removal device for the shield machine vacuum suction cup according to claim 7, characterized in that: A deformable elastic baffle (41) is provided in the dewatering cylinder (9) for blocking the power groove (39) along the horizontal cross section of the power groove (39) to ensure that the gas passes through the dewatering ball (36).

9. A water removal device for a shield machine vacuum cup according to claim 7 or 8, characterized in that: The side wall of the water removal ball (36) is provided with a door for replacing the adsorbed carbon.

10. The water removal device for a shield machine vacuum suction cup according to any one of claims 1 to 6, characterized in that: The water absorbing member (18) is a water absorbing sponge.

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