Recyclable base device for sand penetrating pipe of dewatering well

Abstract

The utility model discloses a recyclable base device for a sand penetrating pipe of a dewatering well. The recyclable base device comprises a base body, the supporting blocks are arranged on the base body and can move towards the middle area along the end face of the base body; and the limiting piece is arranged on the base body, keeps in contact with the supporting block and limits the supporting block to move towards the middle area of the base body in the process of lowering the sand penetrating pipe. The base is simple in structure, the movable supporting blocks are arranged on the peripheral face of the base body, the limiting pieces for limiting the positions of the supporting blocks are arranged, the positions of the supporting blocks can be limited by the limiting pieces in the sand penetrating pipe lowering process, the stability of the sand penetrating pipe in the lowering process is guaranteed, and after the sand penetrating pipe is lowered to the preset elevation position, the sand penetrating pipe is prevented from falling off. An operator moves or relieves constraint of the limiting piece to enable the limiting piece to be separated from limitation on the supporting block, the supporting block can freely move after being not limited and is separated from the end face of the sand penetrating pipe, and the whole device can be easily pulled out of the dewatering well.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building engineering, and specifically relates to a circulating base device for a dewatering well sand pipe. BACKGROUND

[0002] In foundation pit engineering, when the earthwork excavation bottom surface elevation is lower than the underground water level, underground water will continuously infiltrate into the pit, and if effective dewatering measures are not taken, it will lead to water accumulation in the foundation pit, soil softening, slope collapse, and other serious problems such as a decrease in foundation bearing capacity. Therefore, a dewatering well is usually set up and a sand pipe (water filter pipe) is installed to reduce the underground water level, protect the well wall stability, and improve the soil consolidation degree.

[0003] However, the existing sand pipe needs multiple people to cooperate to fix the sand pipe position, fill the filter material, and install the support structure during installation, resulting in high labor costs and long construction period. In addition, multiple people working together are prone to operational errors that can cause equipment overturning or personnel injury, increasing the construction risk. Moreover, the seat used for temporarily lifting the bottom of the sand pipe is usually a disposable or fixed structure that cannot be conveniently recycled after installation, causing material waste and cost increase. Therefore, a circulating base device for a dewatering well sand pipe is proposed. SUMMARY

[0004] The utility model aims to provide a circulating base device for a dewatering well sand pipe to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a circulating base device for a dewatering well sand pipe, comprising:

[0006] a base body;

[0007] a plurality of supporting blocks arranged on the base body and movable along the end surface of the base body towards the middle area;

[0008] a limiting piece arranged on the base body and in contact with the supporting blocks and limiting the movement of the supporting blocks towards the middle area of the base body during the lowering of the sand pipe.

[0009] As a further scheme of the utility model: further comprising a sliding rail arranged on the base body and connected to the driving piece through the end of the steel wire rope after passing through the sliding rail.

[0010] As a further scheme of the utility model: the supporting blocks are rectangular blocks, and the end surface in contact with the sand pipe is a horizontal surface.

[0011] As a further scheme of the utility model: the base body comprises two semicircular discs and a sliding rail arranged between the two semicircular discs, and the sliding rail is connected to the end surfaces of the two semicircular discs.

[0012] As a further embodiment of this utility model: the limiting member includes a limiting kit installed on the base body. The limiting kit has multiple first cavities for the support block to slide inside. One end of each of the multiple first cavities is connected to the other, and rollers are installed at the ports where the multiple first cavities are connected to each other. The end of the support block located in the first cavity is connected to a first traction rope, and the end of the first traction rope away from the support block passes around the rollers and out of the limiting kit.

[0013] As a further embodiment of this utility model: the support block is a rectangular block, with an inclined slope at the end facing the sand-permeable pipe.

[0014] As a further embodiment of this utility model: the base body includes an outer base and a plurality of second cavities formed on the surface of the outer base. A slide rail is installed at the bottom of the outer base, and a receiving cavity is formed on the outer base. The plurality of second cavities are all connected to the receiving cavity.

[0015] As a further embodiment of this utility model: the second cavity is a cavity that gradually contracts from the receiving cavity in the direction away, and the support block is adapted to the second cavity.

[0016] As a further embodiment of this utility model: the limiting member includes an inner base that is rotatably connected to the bottom wall of the receiving cavity. The outer peripheral surface of the inner base is provided with a plurality of protrusions that are the same number as the support blocks, and the protrusions correspond one-to-one with the support blocks. Connecting blocks are installed on both the outer peripheral surface of the inner base and the inner wall of the receiving cavity. The connecting blocks on the inner base are connected to the end of the second traction rope, and the other end of the second traction rope passes through the connecting block fixed on the receiving cavity and then passes out of the outer base.

[0017] As a further embodiment of this utility model: the outer base is provided with a through hole that communicates with the receiving cavity, and the through hole allows the second traction rope to pass through.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This application sets multiple movable support blocks on the outer periphery of the base body and sets limiting components to restrict the position of the support blocks. During the lowering of the sand-permeable pipe, the position of the support blocks is restricted by the limiting components, ensuring the stability of the sand-permeable pipe during lowering. When the sand-permeable pipe is lowered to the preset elevation position, the operator moves or releases the constraint of the limiting components, allowing it to break free from the restriction on the support blocks. After the support blocks are freed from the restriction, they can move freely and separate from the end face of the sand-permeable pipe, allowing the entire device to be easily extracted from the dewatering well. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the first embodiment of the base device of this utility model and the sand-permeable pipe assembly;

[0021] Figure 2 This is a schematic diagram of the limiting component in the first embodiment of the base device of this utility model;

[0022] Figure 3 This is a schematic diagram of the base body of the first embodiment of the base device of this utility model;

[0023] Figure 4 This is a cross-sectional schematic diagram of the first embodiment of the base device of this utility model;

[0024] Figure 5 This is a schematic diagram of the second embodiment of the base device of this utility model;

[0025] Figure 6 This is a cross-sectional schematic diagram of the second embodiment of the base device of this utility model;

[0026] Figure 7 This is a schematic diagram of the rotation direction of the inner base in the second embodiment of the base device of this utility model;

[0027] In the diagram: 1. Base body; 11. Semicircular disc; 12. Outer base; 13. Second cavity; 14. Receiving cavity; 2. Support block; 3. Sand-permeable pipe; 4. Limiting component; 41. Limiting kit; 42. Roller; 43. Inner base; 44. Protrusion; 45. Connecting block; 46. Second traction rope; 47. Through hole; 5. Slide rail; 6. Steel wire rope; 7. First traction rope. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example 1

[0030] Please see Figures 1-7 In this embodiment of the utility model, a recyclable base device for a sand-permeable pipe in a dewatering well includes:

[0031] Base body 1;

[0032] Multiple support blocks 2 are set on the base body 1 and can move along the end face of the base body 1 toward the middle area;

[0033] The limiting component 4 is set on the base body 1. During the lowering of the sand-permeable pipe 3, it maintains contact with the support block 2 and restricts the support block 2 from moving toward the middle area of ​​the base body 1.

[0034] Specifically, the outer diameter of the base body 1 is smaller than the inner diameter of the sand-permeable tube 3, ensuring that the base device can be fully embedded in the central area of ​​the sand-permeable tube 3, providing a stable installation foundation for the support block 2, and ensuring that the device can be smoothly removed after support is completed. Multiple support blocks 2 are evenly distributed on the top of the base body 1 and maintain close contact with the end face of the sand-permeable tube 3. The upper surfaces of the support blocks 2 are on the same horizontal plane, and the uniform force prevents the sand-permeable tube 3 from tilting or shifting when lowered or stationary, ensuring the vertical stability of the sand-permeable tube 3. The limiting member 4 is matched with the base body 1 and the support blocks 2. The horizontal position of the support block 2 is locked to prevent it from sliding laterally under force. This limiting design can effectively prevent the support block 2 from deviating from its original position due to external force, thereby ensuring support stability. After the sand-permeable pipe 3 is lowered to the design elevation, the support block 2 is disengaged from the end face of the sand-permeable pipe 3 by adjusting the limiting component 4. At this time, the end of the support block 2 is retracted into the outer diameter range of the base body 1. Since the outer diameter of the base body 1 is smaller than the inner diameter of the sand-permeable pipe 3, the entire device can be directly and vertically pulled out from the middle area of ​​the sand-permeable pipe 3 to achieve rapid recycling and reuse.

[0035] Please see Figures 1-7 In one embodiment, preferably, it further includes a slide rail 5, which is disposed on the base body 1. The end of the wire rope 6 passes through the slide rail 5 and is connected to the drive component. The slide rail 5 includes a slide track and rollers disposed at both ends of the slide track. The channel reserved in the middle of the slide track is larger than the diameter of the wire rope 6, and the rollers at both ends can effectively reduce the wear between the wire rope 6 and the base body 1.

[0036] Please see Figure 2 In one embodiment, preferably, the support block 2 is a rectangular block, and the end face that contacts the sand-permeable pipe 3 is a horizontal plane.

[0037] Please see Figure 3 In one embodiment, preferably, the base body 1 includes two semi-circular disks 11 and a slide rail 5 disposed between the two semi-circular disks 11. The slide rail 5 is connected to the end faces of the two semi-circular disks 11, and the two semi-circular disks 11 are connected by a slide rail and a roller. On the one hand, it provides support for the slide rail and the roller, and on the other hand, it can limit the position between the two semi-circular disks 11.

[0038] Please see Figure 4 In one embodiment, preferably, the limiting member 4 includes a limiting kit 41 installed on the base body 1. The limiting kit 41 has a plurality of first cavities for the support block 2 to slide inside. One end of each of the plurality of first cavities is connected to the other, and a roller 42 is installed at the port where the plurality of first cavities are connected to each other. The end of the support block 2 located in the first cavity is connected to a first traction rope 7. The end of the first traction rope 7 away from the support block 2 passes around the roller 42 and out of the limiting kit 41.

[0039] Specifically, the limiting kit 41 includes four mutually perpendicular outwardly extending first cavities, forming a cross-shaped three-dimensional support frame. Each first cavity is equipped with a support block 2, which is connected by a first traction rope 7. The first traction rope 7 passes around the bottom of the roller 42 in the first cavity and extends to the outside of the dewatering well, forming a controllable tension transmission path. During the lowering of the sand-permeable pipe 3, the support block 2 is initially located at the outer opening end of the first cavity, contacting the bottom end face of the sand-permeable pipe 3, jointly supporting the weight of the sand-permeable pipe 3 and ensuring its vertical stability. When the sand-permeable pipe 3 is lowered to the bottom elevation of the dewatering well, one end of the wire rope 6 is released, and the wire rope 6 is... Pull the device out of the well, release the vertical suspension of the device, pull the first traction rope 7, and apply a pulling force to the block 2 in the direction of the roller 42. The block 2 retracts inward along the first cavity and gradually separates from the bottom end face of the sand-permeable pipe 3, causing the sand-permeable pipe 3 to fall slightly due to its own weight and contact the bottom of the dewatering well. When the block 2 is completely retracted into the first cavity and in contact with the roller 42, the roller 42 acts as a limiting structure to prevent the block 2 from moving further in the direction of the pulling force of the first traction rope 7. At this time, the block 2 is completely retracted into the limiting kit 41. Continue to pull the first traction rope 7, so that the entire device is pulled vertically upward along the central area of ​​the sand-permeable pipe 3, and the recovery is completed.

[0040] Example 2

[0041] Please see Figures 5-7 In one embodiment, preferably, the support block 2 is a rectangular block with an inclined slope at one end facing the sand-permeable pipe 3. Due to the presence of the inclined slope, the sand-permeable pipe 3 will not only exert a vertical downward pressure on the support block 2, but also generate a horizontal thrust due to the slope of the contact surface.

[0042] Please see Figures 5-7 In one embodiment, preferably, the base body 1 includes an outer base 12 and a plurality of second cavities 13 formed on the surface of the outer base 12. A slide rail 5 is installed at the bottom of the outer base 12, and a receiving cavity 14 is formed on the outer base 12. The plurality of second cavities 13 are all connected to the receiving cavity 14. The second cavity 13 is a cavity that gradually contracts away from the receiving cavity 14. The support block 2 is adapted to the second cavity 13. When the support block 2 is inserted into the second cavity 13, its size matches the contour of the cavity contraction, ensuring that the support block 2 cannot fall off from the opening of the second cavity 13 away from the receiving cavity 14.

[0043] Please see Figures 5-7In one embodiment, preferably, the limiting member 4 includes an inner base 43 rotatably connected to the bottom wall of the receiving cavity 14. The outer peripheral surface of the inner base 43 is provided with a plurality of protrusions 44, the same number as the support blocks 2, and the protrusions 44 correspond one-to-one with the support blocks 2. Both the outer peripheral surface of the inner base 43 and the inner wall of the receiving cavity 14 are equipped with connecting blocks 45. The connecting blocks 45 on the inner base 43 are connected to the end of the second traction rope 46. The other end of the second traction rope 46 passes through the connecting block 45 fixed on the receiving cavity 14 and then passes out of the outer base 12. The outer base 12 is provided with a through hole 47 communicating with the receiving cavity 14, and the through hole 47 allows the second traction rope 46 to pass through.

[0044] Specifically, the rotating inner base 43 is installed in the receiving cavity 14 of the outer base 12 and can rotate around its axis. Its surface is provided with multiple protrusions 44, each corresponding to the position of the support block 2. When the inner base 43 rotates to a specific angle, the protrusions 44 can precisely abut against the end of the support block 2. The support block 2 is installed in the second cavity 13 of the outer base 12, and its end facing the sand-permeable pipe 3 has an inclined slope. When the protrusions 44 abut against the support block 2, they can prevent the support block 2 from moving towards the protrusions 44. Even if the support block 2 is subjected to horizontal thrust due to the inclined slope, it can still maintain a stable position. The end of the second traction rope 46 is connected to the inner base 43, and then passes sequentially through the connecting block 45 on the receiving cavity 14 and the through hole 47 on the outer base 12, extending to the outside of the dewatering well. The connecting block 45 restricts the direction of the tension of the second traction rope 46 within the receiving cavity 14, ensuring that the tension can be directly transmitted to the inner base 43. Driven to rotate, when the sand-permeable pipe 3 is lowered to the bottom elevation of the dewatering well, loosen one end of the steel wire rope 6 and pull it out completely, releasing the vertical suspension state of the device. Pull the external second traction rope 46, and through the guiding action of the connecting block 45, the traction force is transmitted to the inner base 43, causing it to rotate around the axis. When the inner base 43 rotates, the protrusion 44 gradually disengages from the contact position of the support block 2. Since the inclined slope of the support block 2 is in contact with the sand-permeable pipe 3, the self-weight of the sand-permeable pipe 3 drives the support block 2 to slide along the second cavity 13 towards the receiving cavity 14 through the horizontal thrust generated by the slope, and completely enter the second cavity 13. After the support block 2 is disengaged, the sand-permeable pipe 3 falls slightly due to its own weight and contacts the bottom of the dewatering well. Continue to pull the second traction rope 46 until the inner base 43 can no longer rotate, so that the entire device can be pulled out vertically upward along the central area of ​​the sand-permeable pipe 3, completing the recovery.

[0045] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0046] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.

Claims

1. A recyclable base device for a sand-permeable pipe in a dewatering well, characterized in that, include: Base body; Multiple support blocks are mounted on the base body and can move along the end face of the base body toward the central area; A limiting component is provided on the base body. During the lowering of the sand-permeable pipe, it maintains contact with the support block and restricts the support block from moving toward the middle area of ​​the base body.

2. The recyclable base device for the sand-permeable pipe of the dewatering well according to claim 1, characterized in that, It further includes a slide rail, which is disposed on the base body, and is connected to the drive component by the end of a steel wire rope passing through the slide rail.

3. The recyclable base device for the sand-permeable pipe of the dewatering well according to claim 2, characterized in that, The support block is a rectangular block, and the end face that contacts the sand-permeable pipe is a horizontal plane.

4. The recyclable base device for the sand-permeable pipe of the dewatering well according to claim 3, characterized in that, The base body includes two semi-circular disks and a slide rail disposed between the two semi-circular disks, the slide rail being connected to the end faces of the two semi-circular disks.

5. The recyclable base device for the sand-permeable pipe of the dewatering well according to claim 4, characterized in that, The limiting component includes a limiting kit installed on the base body. The limiting kit has multiple first cavities for the support block to slide inside. One end of each of the multiple first cavities is connected to the other, and rollers are installed at the ports where the multiple first cavities are connected to each other. The end of the support block located in the first cavity is connected to a first traction rope, and the end of the first traction rope away from the support block passes around the rollers and out of the limiting kit.

6. The recyclable base device for the sand-permeable pipe of the dewatering well according to claim 2, characterized in that, The support block is a rectangular block with an inclined slope at the end facing the sand-permeable pipe.

7. The recyclable base device for the sand-permeable pipe of the dewatering well according to claim 6, characterized in that, The base body includes an outer base and a plurality of second cavities formed on the surface of the outer base. A slide rail is installed at the bottom of the outer base, and a receiving cavity is formed on the outer base. The plurality of second cavities are all connected to the receiving cavity.

8. The recyclable base device for the sand-permeable pipe of the dewatering well according to claim 7, characterized in that, The second cavity is a cavity that gradually contracts from the receiving cavity in the direction away, and the support block is adapted to the second cavity.

9. The recyclable base device for the sand-permeable pipe of the dewatering well according to claim 8, characterized in that, The limiting component includes an inner base that is rotatably connected to the bottom wall of the receiving cavity. The outer peripheral surface of the inner base is provided with a plurality of protrusions that are the same number as the support blocks, and the protrusions correspond one-to-one with the support blocks. Both the outer peripheral surface of the inner base and the inner wall of the receiving cavity are equipped with connecting blocks. The connecting blocks on the inner base are connected to the end of the second traction rope, and the other end of the second traction rope passes through the connecting block fixed on the receiving cavity and then passes out of the outer base.

10. The recyclable base device for the sand-permeable pipe of the dewatering well according to claim 9, characterized in that, The outer base has a through hole that communicates with the receiving cavity, through which the second traction rope passes.

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