Shield tail water pumping transformation device of shield tunneling machine

Abstract

The utility model belongs to the technical field of tunnel engineering construction, and discloses a shield tunneling machine shield tail water pumping transformation device which comprises a water pumping assembly and a control assembly, the water pumping assembly comprises a box body, a piston rod, a water taking pipe and a water draining pipe, the box body is connected to the output end of a driving mechanism, and a fixing cavity is formed in the box body in a surrounding mode. The first end of the piston rod adjustably extends into the fixing cavity, and a water collecting cavity is defined by the first end of the piston rod and the inner wall of the fixing cavity; the second end of the piston rod is arranged on the shield tunneling machine; the water taking pipe and the water discharging pipe communicate with the water collecting cavity. The control assembly comprises a controller, a first valve and a second valve, and the first valve, the second valve and the driving mechanism are all connected to the controller. Along with telescopic movement of the output end of the driving mechanism on the shield tunneling machine, the box body can move synchronously, then the second end of the piston rod moves in the fixing cavity, accumulated water is pumped into the water collecting cavity through the water taking pipe and then discharged through the water discharging pipe, pumping of the accumulated water can be achieved without additionally providing power, and the construction efficiency of follow-up segment splicing is effectively guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to tunnel engineering construction technical field especially, relates to a shield tail water pumping reconstruction device of shield machine. BACKGROUND

[0002] During the construction process of the shield machine, water seepage and cleaning needs and various other factors can cause water to accumulate at the shield tail. This water needs to be promptly cleaned to facilitate the normal assembly of the subsequent segments.

[0003] In the prior art, a set of water pumping device is usually provided, and additional power is required to pump the water accumulated at the shield tail. Moreover, the water pumped by the water pumping device is mostly directly discharged to the outside of the tunnel and is not treated for recycling, resulting in waste of water resources. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a shield tail water pumping reconstruction device of shield machine, which can promptly discharge the water accumulated at the shield tail without additional power consumption, thereby ensuring the efficiency of subsequent construction.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A shield tail water pumping reconstruction device of shield machine is provided for pumping the water accumulated at the shield tail of the shield machine. The shield tail is provided with a driving mechanism that is retractable along the direction of travel of the shield machine. The output end of the driving mechanism abuts against the segment. The shield tail water pumping reconstruction device of the shield machine comprises:

[0007] A water pumping assembly comprises a box body, a piston rod, a water intake pipe, and a drain pipe. The box body is connected to the output end of the driving mechanism. The box body encloses a fixed cavity. The first end of the piston rod is adjustably inserted into the fixed cavity and abuts against the inner wall of the fixed cavity in the circumferential direction. The end of the first end of the piston rod and the inner wall of the fixed cavity enclose a water collecting cavity. The second end of the piston rod is arranged on the shield tail of the shield machine. The water intake pipe and the drain pipe are both connected to the water collecting cavity.

[0008] A control assembly comprises a controller, a first valve, and a second valve. The first valve is arranged between the water intake pipe and the water collecting cavity. The second valve is arranged between the drain pipe and the water collecting cavity. The first valve, the second valve, and the driving mechanism are all communicatively connected to the controller.

[0009] As an optional solution of the shield tail water pumping reconstruction device of the shield machine, the device further comprises a water collecting assembly comprising a water collecting tank. The water collecting tank is connected to the output end of the drain pipe.

[0010] As an optional scheme of the shield tail water pumping reconstruction device of the shield machine, the water collecting assembly further comprises a filter, which is arranged in the water collecting tank.

[0011] As an optional scheme of the shield tail water pumping reconstruction device of the shield machine, a water level monitoring sensor is arranged in the water collecting tank, and the water level monitoring sensor is connected to the controller.

[0012] As an optional scheme of the shield tail water pumping reconstruction device of the shield machine, a sealing element is arranged on the first end of the piston rod, and the sealing element abuts against the inner wall of the fixed cavity.

[0013] As an optional scheme of the shield tail water pumping reconstruction device of the shield machine, the sealing element is made of rubber material.

[0014] As an optional scheme of the shield tail water pumping reconstruction device of the shield machine, a first magnetic element is arranged on the box body, a second magnetic element is arranged on the output end of the driving mechanism, and the first magnetic element and the second magnetic element are magnetically opposite.

[0015] As an optional scheme of the shield tail water pumping reconstruction device of the shield machine, a third magnetic element is arranged on the second end of the piston rod, and a fourth magnetic element is arranged at the shield tail of the shield machine, and the third magnetic element and the fourth magnetic element are magnetically opposite.

[0016] As an optional scheme of the shield tail water pumping reconstruction device of the shield machine, the box body is detachably connected to the output end of the driving mechanism, and the piston rod is detachably connected to the shield tail of the shield machine.

[0017] As an optional scheme of the shield tail water pumping reconstruction device of the shield machine, the piston rod is T-shaped.

[0018] The beneficial effects of the shield tail water pumping reconstruction device of the shield machine are as follows:

[0019] The utility model provides a kind of shield tail water pumping reconstruction device of shield machine, for extracting the waterlogging of shield tail of shield machine. With the expansion of the output end of the driving mechanism of shield tail of shield machine, the box body fixed to the output end of driving mechanism can be moved synchronously, to drive the movement of the first end of piston rod in fixed cavity, so that the waterlogging of shield tail is into the water collecting cavity surrounded by the first end of piston rod and the inner wall of fixed cavity by water pipe, and the extraction of waterlogging is completed. According to the start-stop signal of driving mechanism, the controller can control the opening and closing of first valve and second valve, to ensure the smooth pumping and timely discharge of waterlogging, without additional power to drive the movement of piston rod, the pumping and discharge of waterlogging can be completed, with good economy, and the construction efficiency of subsequent segment splicing can be effectively ensured. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1is a top view of the shield tail water pumping retrofit device of the shield machine provided by the embodiment of the specific implementation manner of the utility model;

[0021] Fig. 2 is a top view of the shield tail water pumping retrofit device of the shield machine provided by the embodiment of the specific implementation manner of the utility model, which omits part of structure;

[0022] Fig. 3 is a front view of the shield tail water pumping retrofit device of the shield machine provided by the embodiment of the specific implementation manner of the utility model.

[0023] In the figure,

[0024] 100, shield machine; 101, driving mechanism; 200, segment;

[0025] 1, water pumping assembly; 11, box body; 12, piston rod; 121, sealing element; 13, water taking pipe; 14, drain pipe;

[0026] 2, control assembly; 21, controller; 22, first valve; 23, second valve;

[0027] 3, water collecting assembly; 31, water collecting tank;

[0028] 4, data collector. DETAILED DESCRIPTION

[0029] The utility model will be further described in detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not limited to the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0030] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0031] In the utility model, unless another definite provision and limitation, first feature is in second feature "on" or "under" can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but contact through other feature between them. Moreover, first feature is in second feature "on", "above" and "upper surface" include that first feature is in second feature directly above and obliquely above, or just indicate that first feature horizontal height is higher than second feature. First feature is in second feature "under", "below" and "under surface" include that first feature is in second feature directly below and obliquely below, or just indicate that first feature horizontal height is less than second feature.

[0032] In the description of the present embodiment, the terms "upper", "lower", "right", and other orientation or position relations are based on the orientation or position relations shown in the drawings, only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0033] The technical scheme of the utility model is further illustrated below by specific embodiments in combination with the drawings.

[0034] The embodiment provides a shield tail water pumping reconstruction device of a shield machine, which is used for pumping water accumulated at a shield tail of the shield machine 100. The shield tail is provided with a driving mechanism 101, the driving mechanism 101 is telescopic along the advancing direction of the shield machine 100, and the output end of the driving mechanism 101 abuts on a segment 200.

[0035] As Figs. 1 to 3As shown, the shield tail water pumping modification device includes a pumping assembly 1 and a control assembly 2. The pumping assembly 1 includes a housing 11, a piston rod 12, a water intake pipe 13, and a drain pipe 14. The housing 11 is connected to the output end of the drive mechanism 101 and surrounds a fixed cavity. The first end of the piston rod 12 is adjustable and extends into the fixed cavity, circumferentially abutting the inner wall of the fixed cavity. The end of the first end of the piston rod 12 and the inner wall of the fixed cavity form a water collection cavity. The second end of the piston rod 12 is mounted on the shield tail of the shield machine 100. The water intake pipe 13 and the drain pipe 14 are both connected to the water collection cavity. The control assembly 2 includes a controller 21, a first valve 22, and a second valve 23. The first valve 22 is disposed between the water intake pipe 13 and the water collection cavity, and the second valve 23 is disposed between the drain pipe 14 and the water collection cavity. The first valve 22, the second valve 23, and the drive mechanism 101 are all communicatively connected to the controller 21. The controller 21 receives signals indicating the opening and closing of the drive mechanism 101 and controls the opening and closing of the first valve 22 and the second valve 23. The telescopic movement of the output end of the drive mechanism 101 on the shield machine 100 synchronously drives the movement of the housing 11, thereby enabling the second end of the piston rod 12 to move within the fixed cavity. This allows water accumulated at the shield tail to be pumped into the water collection cavity through the water intake pipe 13 and then discharged through the drain pipe 14. This allows the pumping of accumulated water without the need for additional power to drive the movement of the piston rod 12, effectively ensuring the efficiency of the subsequent segment 200 splicing.

[0036] Specifically, controller 21 is a single-chip microcomputer (MCU) known in the prior art, with a control program burned into it. Controller 21 is provided with a receiving terminal for receiving opening and closing signals from drive mechanism 101. The receiving terminal transmits the received signals to the MCU, which, in conjunction with the control program, controls the opening and closing of first valve 22 and second valve 23. Exemplarily, the MCU 21 is an STM32 controller, and the related control program is referenced in the prior art.

[0037] Specifically, in this embodiment, a data collector 4 is further provided. Data collector 4 is connected to drive mechanism 101 and controller 21 and is used to collect signals indicating the start and stop of drive mechanism 101. Controller 21 reads the signals from data collector 4 and, in conjunction with a relevant control program, controls the opening and closing of first valve 22 and second valve 23. For example, data collector 4 is a PLC data collector 4 already known in the prior art. Its specific structure and principles are referenced in the prior art and are not further described here.

[0038] Optionally, the piston rod 12 is T-shaped, which can save material for the piston rod 12 and has a more reasonable structure.

[0039] Optionally, the shield tail pumping modification device further includes a water collection component 3. The water collection component 3 includes a water collection box 31, which is connected to the output end of the drain pipe 14 to collect the accumulated water at the shield tail to avoid waste of water resources.

[0040] Furthermore, the water collection assembly 3 also includes a filter element, which is disposed in the water collection tank 31 to filter the extracted accumulated water. Specifically, the filter element is a coarse-effect, medium-effect, or high-effect filter element commonly used in the prior art in the field. The specific filtration level can be selected as needed according to the operating environment.

[0041] Optionally, a water level monitoring sensor is provided within the water collection tank 31 and is connected to the controller 21. This sensor is used to monitor the water level within the water collection tank 31. When the accumulated water level within the water collection tank 31 reaches a set value, the controller 21 controls the second valve 23 to open, promptly draining the accumulated water and preventing excessive water accumulation from affecting subsequent normal water extraction. Specifically, the water level monitoring sensor is also a known device in the prior art. Its specific structure and principles are referenced in the prior art and will not be further described here.

[0042] Optionally, the first end of the piston rod 12 is provided with a seal 121, which abuts against the inner wall of the fixed cavity to seal the gap between the end of the piston rod 12 and the inner wall of the fixed cavity, ensuring the sealing of the water collection cavity and preventing leakage of accumulated water.

[0043] Furthermore, the sealing member 121 is made of a rubber material, which has good sealing performance, wear resistance and fatigue resistance, and is economical and affordable. For example, in this embodiment, the sealing member 121 is a rubber ring.

[0044] Optionally, a first magnetic member is provided on the housing 11, and a second magnetic member is provided at the output end of the drive mechanism 101, with the first magnetic member and the second magnetic member having opposite magnetic properties. Due to the magnetic interaction between the first and second magnetic members, the housing 11 can be fixedly attached to the output end of the drive mechanism 101, enabling quick installation of the housing 11 and facilitating subsequent removal and replacement.

[0045] Optionally, a third magnetic member is provided at the second end of the piston rod 12, and a fourth magnetic member is provided at the shield tail of the shield machine 100. The third magnetic member and the fourth magnetic member have opposite magnetic properties. The magnetic interaction between the third and fourth magnetic members allows the piston rod 12 to be fixedly attached to the shield tail of the shield machine 100, enabling quick installation of the piston rod 12 and facilitating subsequent removal and replacement.

[0046] Alternatively, the housing 11 is detachably connected to the output end of the drive mechanism 101, and the piston rod 12 is detachably connected to the shield tail of the shield machine 100. Specifically, the housing 11 is detachably screwed to the output end of the drive mechanism 101 by bolts, and the piston rod 12 is also detachably screwed to the shield tail of the shield machine 100 by bolts. The materials are easily available and the operation is simple and convenient.

[0047] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the present application. Here, it is not necessary and also impossible to enumerate all the implementation modes. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application claims.

Claims

1. A shield tail pumping modification device for a shield machine, used for pumping out accumulated water at the shield tail of a shield machine (100), wherein a driving mechanism (101) is provided at the shield tail, wherein the driving mechanism (101) is retractable along the traveling direction of the shield machine (100), and an output end of the driving mechanism (101) abuts against a segment (200), and wherein the ... provided at the shield tail, and wherein the driving mechanism (101) is provided at the shield tail, and wherein the driving mechanism (101) is provided at the shield tail, and wherein the driving mechanism (101) is provided at the shield tail, and wherein the The shield tail pumping modification device of the shield machine includes: A water pumping assembly (1) comprises a housing (11), a piston rod (12), a water intake pipe (13) and a drainage pipe (14); the housing (11) is connected to the output end of the driving mechanism (101); the housing (11) is provided with a fixed cavity; the first end of the piston rod (12) is adjustable in position and extends into the fixed cavity and abuts against the inner wall of the fixed cavity along the circumferential direction; the end of the first end of the piston rod (12) and the inner wall of the fixed cavity form a water collection cavity; the second end of the piston rod (12) is provided on the shield tail of the shield machine (100); the water intake pipe (13) and the drainage pipe (14) are both connected to the water collection cavity; A control assembly (2) comprises a controller (21), a first valve (22) and a second valve (23), wherein the first valve (22) is arranged between the water intake pipe (13) and the water collection chamber, and the second valve (23) is arranged between the drainage pipe (14) and the water collection chamber, and the first valve (22), the second valve (23) and the driving mechanism (101) are all communicatively connected to the controller (21).

2. The shield tail pumping modification device of the shield machine according to claim 1 is characterized in that: It also includes a water collection component (3), the water collection component (3) includes a water collection box (31), and the water collection box (31) is connected to the output end of the drainage pipe (14).

3. The shield tail pumping modification device of the shield machine according to claim 2 is characterized in that: The water collection assembly (3) further comprises a filter element, and the filter element is arranged in the water collection box (31).

4. The shield tail pumping modification device of the shield machine according to claim 2 is characterized in that: A water level monitoring sensor is provided in the water collecting tank (31), and the water level monitoring sensor is connected to the controller (21).

5. The shield tail pumping modification device of a shield machine according to claim 1 is characterized in that: The first end of the piston rod (12) is sleeved with a sealing member (121), and the sealing member (121) abuts against the inner wall of the fixed cavity.

6. The shield tail pumping modification device of the shield machine according to claim 5 is characterized in that: The sealing member (121) is made of rubber material.

7. The shield tail pumping modification device for a shield machine according to any one of claims 1 to 6, characterized in that: A first magnetic member is provided on the box body (11), and a second magnetic member is provided at the output end of the driving mechanism (101), wherein the first magnetic member and the second magnetic member have opposite magnetic properties.

8. The shield tail pumping modification device for a shield machine according to any one of claims 1 to 6, characterized in that: A third magnetic component is provided at the second end of the piston rod (12), and a fourth magnetic component is provided at the shield tail of the shield machine (100), wherein the third magnetic component and the fourth magnetic component have opposite magnetic properties.

9. The shield tail pumping modification device for a shield machine according to any one of claims 1 to 6, characterized in that: The box body (11) is detachably connected to the output end of the driving mechanism (101), and the piston rod (12) is detachably connected to the shield tail of the shield machine (100).

10. The shield tail pumping modification device for a shield machine according to any one of claims 1 to 6, characterized in that: The piston rod (12) is T-shaped.

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