A recharge well protection device and recharge well

Abstract

The utility model relates to the field of foundation pit dewatering, concretely relates to a recharge well protection device and recharge well, including fixed plate, apron and a plurality of support frame. The fixed plate is installed on the road on the well shaft top, is equipped with through -hole on the fixed plate, apron is connected through the pivot with fixed plate, the apron is used to close or open the through -hole, a plurality of support frame is arranged side by side at the well mouth of well shaft, and the top of support frame abuts with apron. The application supports the apron through the support frame to improve the carrying capacity of the apron, effectively solve the problem of insufficient carrying capacity of recharge well top cover in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of foundation pit dewatering, and in particular to a recharge well protection device and a recharge well. Background Technology

[0002] In the field of foundation pit engineering, groundwater extraction often triggers a series of environmental problems, such as regional land subsidence, soil desertification, and ecological imbalance in the surrounding area. Recharge wells, as a key technological means to address these environmental issues, play a crucial role in foundation pit dewatering construction. Their core principle is to artificially replenish groundwater to maintain the hydraulic balance within the area, effectively preventing subsidence in the external area of ​​the foundation pit due to excessive drops in groundwater levels, and ensuring the safety and stability of surrounding buildings and underground facilities.

[0003] Typically, to protect the wellhead of a reinjection well from debris falling in or people accidentally falling in, a cover is installed on top of the well to tightly seal it. However, when reinjection wells are located in construction road areas, large heavy vehicles frequently pass through these areas, and their immense weight exerts a strong crushing effect on the ground. Traditional reinjection well covers, due to factors such as material and structural design, cannot meet these high load-bearing requirements and are easily damaged under the repeated crushing of heavy vehicles. Once the cover is damaged, it not only fails to protect the wellhead but may also cause further damage to the wellhead, thus affecting the normal operation of the entire reinjection system. Utility Model Content

[0004] The purpose of this utility model is to overcome the problem of insufficient load-bearing capacity of the cover on the top of the recharge well in the prior art, and to provide a recharge well protection device and a recharge well.

[0005] In a first aspect, the present invention provides a reinjection well protection device, comprising:

[0006] A fixing plate is installed on the road at the top of the well shaft, and the fixing plate is provided with through holes;

[0007] A cover plate, which is connected to the fixing plate via a pivot; the cover plate is used to close or open the through hole.

[0008] A plurality of support frames are arranged side by side at the wellhead of the well shaft, and the top of the support frames abuts against the cover plate.

[0009] This utility model provides a reinjection well protection device. The fixing plate securely fixes the entire device to the road, preventing displacement. A through hole on the fixing plate accommodates and installs the cover plate. The cover plate is connected to the fixing plate via a rotating shaft, allowing for an openable installation and facilitating subsequent operation and maintenance of the reinjection well. Several support frames are arranged side-by-side at the wellhead of the well shaft, with the top of each support frame abutting against the cover plate. When the cover plate bears external loads (such as vehicle pressure), the support frames transfer the load to themselves, thus supporting the cover plate, effectively improving its load-bearing capacity and reducing deformation due to pressure. Simultaneously, the support frames further transfer their own load to the well shaft, ensuring reasonable and stable stress distribution throughout the structure.

[0010] This invention uses the support frame to support the cover plate, thereby improving the load-bearing capacity of the cover plate and effectively solving the problem of insufficient load-bearing capacity of the top cover of the reinjection well in the prior art.

[0011] The support frame can be a single-rod support frame, which can be composed of a single rod with a certain strength and rigidity; or it can be a truss support frame, which can be composed of multiple rods connected by hinges or rigid connections to form a truss structure.

[0012] The fixing plate can be embedded in the road with concrete or anchored to the road with anchor bolts.

[0013] The top surface of the fixing plate and the top surface of the cover plate can be lower than or higher than the road surface, or they can be flush with the road surface.

[0014] The cover plate can be circular, rectangular, square, or polygonal in shape.

[0015] Preferably, the support frame includes an upper chord, a lower chord, and a web member. The web member connects the upper and lower chords, and both ends of the upper chord are connected to the top of the well shaft. The support frame abuts against the cover plate via the upper chord. In this design, the upper chord, lower chord, and web member together form a truss structure. Compared to a single-strut support frame, using the same materials, the truss structure has superior load-bearing capacity, further improving the load-bearing performance of the cover plate.

[0016] The upper chord, the lower chord, and the web members can be made of steel bars, plain round steel bars, or ribbed steel bars.

[0017] Preferably, both ends of the lower chord are connected to the inner wall of the well shaft. This connection method effectively strengthens the connection between the support frame and the well shaft, improves the overall structural integrity, and thus enhances the load-bearing capacity of the support frame.

[0018] Preferably, the upper chord, the lower chord, and the web members are all ribbed steel bars. The ribbed steel bars have several advantages. Firstly, they have high strength, meeting the structural requirements for member strength and ensuring the stability and reliability of the overall structure. Secondly, they are very convenient to source and manufacture on-site, allowing for the full utilization of steel bar scraps and effectively reducing material costs.

[0019] Preferably, the support frame further includes a top plate, the bottom surface of which is connected to the upper chord, and the support frame abuts against the cover plate via the top surface of the top plate. In this design, the top plate changes the original contact method between the cover plate and the support frame, transforming the original linear contact into a surface contact. This change has a significant effect; compared to linear contact, surface contact increases the contact area, allowing the force exerted by the cover plate on the support frame to be distributed and transmitted more evenly, thus making the force transmission from the cover plate to the support frame more stable and reliable.

[0020] Preferably, both the fixing plate and the cover plate are steel plates with a thickness of 15mm-30mm.

[0021] Preferably, the fixing plate is embedded in the road surface. This solution can make full use of the road's own pavement structure characteristics to provide stable support and fixation for the fixing plate, thereby effectively reducing the reliance on and use of other additional fixing devices.

[0022] Preferably, the top surface of both the fixing plate and the top surface of the cover plate are flush with the road surface. This design ensures the smoothness of the road surface, preventing vehicles from experiencing bumps and undulations, and improving driving comfort and safety.

[0023] Preferably, the cover plate is square in shape. This shape is easy to process and can effectively reduce processing difficulty and cost.

[0024] In a second aspect, the present invention provides a reinjection well, including a water injection pipe and a reinjection well protection device, wherein the horizontal section of the water injection pipe is located below the fixing plate and the cover plate, and the horizontal section of the water injection pipe is parallel to the support frame.

[0025] This invention provides a recharge well, wherein the water injection pipe is used to inject water into the recharge well. The recharge well protection device enhances the load-bearing capacity of the top cover plate, effectively solving the problem of insufficient load-bearing capacity of the top cover plate in existing recharge wells.

[0026] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0027] This utility model provides a reinjection well protection device, which supports the cover plate through the support frame, thereby improving the load-bearing capacity of the cover plate and effectively solving the problem of insufficient load-bearing capacity of the top cover of the reinjection well in the prior art;

[0028] This utility model provides a reinjection well. Through the reinjection well protection device, the load-bearing capacity of the top cover of the reinjection well can be improved, effectively solving the problem of insufficient load-bearing capacity of the top cover of the reinjection well in the prior art. Attached Figure Description

[0029] Figure 1 This is a first planar schematic diagram of a reinjection well protection device.

[0030] Figure 2 This is a schematic diagram of the second plane of a reinjection well protection device.

[0031] Figure 3 for Figure 1 A cross-sectional view along section line AA.

[0032] Figure 4 This is a detailed front elevation view of the support frame.

[0033] Figure 5 This is a detailed side elevation view of the support frame.

[0034] Marked in the image:

[0035] 1-Fixing plate,

[0036] 2-Cover plate,

[0037] 3-Spindle,

[0038] 4-Support frame,

[0039] 401 - Top chord, 402 - Bottom chord, 403 - Web member, Top plate - 404

[0040] 5-Water injection pipe,

[0041] 6-shaft,

[0042] 7-Road,

[0043] 701 - Road surface. Detailed Implementation

[0044] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0045] Unless otherwise specified, the terms "upper," "lower," "left," "right," "center," "inner," and "outer" used in the description of specific embodiments of this utility model to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is usually placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, and for enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0046] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," "parallel," and "coaxial" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, parallel, or coaxial. Slight tilt or deviation is permissible, as long as it does not affect the normal function of the relevant component. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," not that the structure must be perfectly horizontal; a slight tilt is acceptable. "Coaxial" means that two components are arranged as coaxially as possible, allowing them to move coaxially or approximately coaxially when their relative positions change. Alternatively, it can be simplified to mean that the corresponding device / component / element, when arranged in "horizontal," "vertical," "suspended," "parallel," or "coaxial" directions, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. For example, the deviation in the "coaxial" direction is controlled within 0.2-1mm, preferably within 0.2-0.5mm. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0047] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0048] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0049] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "provided with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0050] Example 1

[0051] like Figures 1 to 5 As shown, a reinjection well protection device includes a fixing plate 1, a cover plate 2, and several support frames 4.

[0052] The fixing plate 1 is installed on the road 7 at the top of the shaft 6, and the fixing plate 1 is provided with through holes. Specifically, the outer contour dimensions of the fixing plate 1 can be 400mm×400mm, 410mm×410mm, or 420mm×420mm.

[0053] The cover plate 2 is connected to the fixed plate 1 via a rotating shaft 3; the cover plate 2 is used to close or open the through hole. The cover plate 2 and the rotating shaft 3 are... Figure 2 Not shown in the image.

[0054] Several support frames 4 are arranged side by side at the wellhead of the shaft 6, with the top of the support frame 4 abutting against the cover plate 2. Specifically, there can be two support frames 4.

[0055] In an optional embodiment, the support frame 4 may include an upper chord 401, a lower chord 402 and a web member 403. The web member 403 is connected between the upper chord 401 and the lower chord 402. Both ends of the upper chord 401 are connected to the top of the well shaft 6. The support frame 4 abuts against the cover plate 2 through the upper chord 401.

[0056] Specifically, both the upper chord 401 and the lower chord 402 are arranged horizontally. The web member 403 is composed of vertical and diagonal members. The two ends of the vertical members are welded to the upper chord 401 and the lower chord 402, respectively; similarly, the two ends of the diagonal members are welded to the upper chord 401 and the lower chord 402, respectively. A groove adapted to the size of the upper chord 401 can be provided at the top of the shaft 6. This groove can accurately position the upper chord 401 and enhance the connection strength between the shaft 6 and the upper chord 401. The shaft 6 and the upper chord 401 are connected by welding. Furthermore, the two ends of the upper chord 401 can extend beyond the outer wall of the shaft 6 and be supported on the road 7.

[0057] The outer surfaces of the upper chord 401, lower chord 402, and web members 403 may be coated with anti-rust paint to enhance structural durability.

[0058] In an optional embodiment, both ends of the lower chord 402 can be connected to the inner wall of the well shaft 6. Specifically, both ends of the lower chord 402 are connected to the inner wall of the well shaft 6 by welding.

[0059] In an optional embodiment, the top chord 401, bottom chord 402, and web member 403 can all be ribbed steel bars. Specifically, the strength grade of the ribbed steel bars can be HRB400 or HRB500. The diameter of the top chord 401 can be 20mm-30mm, specifically 20mm, 25mm, 28mm, or 30mm. The diameters of the bottom chord 402 and web member 403 can be 16mm-22mm, specifically 16mm, 18mm, 20mm, or 22mm.

[0060] In an optional embodiment, the support frame 4 may further include a top plate 404, the bottom surface of which is connected to the upper chord 401, and the support frame 4 abuts against the cover plate 2 via the top surface of the top plate 404. Specifically, the top plate 404 is a steel plate with a thickness of 15mm. The top plate 404 and the upper chord 401 are connected by welding.

[0061] In an optional embodiment, both the fixing plate 1 and the cover plate 2 can be steel plates with a thickness of 15mm-30mm, specifically 15mm, 18mm, 20mm, 24mm, 28mm, or 30mm.

[0062] In an alternative embodiment, the fixing plate 1 can be embedded in the road 7.

[0063] In an optional embodiment, the top surface of both the fixing plate 1 and the top surface of the cover plate 2 can be flush with the road surface 701 of the road 7.

[0064] In an optional embodiment, the cover plate 2 can be square in shape. Specifically, the dimensions of the cover plate 2 can be 300mm × 300mm.

[0065] Example 2

[0066] A reinjection well includes a water injection pipe 5 and a reinjection well protection device as described in Example 1. The horizontal section of the water injection pipe 5 is located below the fixing plate 1 and the cover plate 2, and the horizontal section of the water injection pipe 5 is parallel to the support frame 4. Specifically, the horizontal section of the water injection pipe 5 extends into the reinjection well. The water injection pipe 5 can be a galvanized steel pipe, a PPR pipe, or a PVC pipe. The horizontal section of the water injection pipe 5 can be installed in a trench opened in the road 7 to prevent it from being damaged by passing vehicles.

[0067] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A reinjection well protection device, characterized in that, include: A fixing plate (1) is installed on the road (7) at the top of the well shaft (6), and the fixing plate (1) is provided with a through hole; Cover plate (2), which is connected to the fixing plate (1) via a rotating shaft (3); the cover plate (2) is used to close or open the through hole; A plurality of support frames (4) are arranged side by side at the wellhead of the well shaft (6), and the top of the support frame (4) abuts against the cover plate (2).

2. The reinjection well protection device according to claim 1, characterized in that, The support frame (4) includes an upper chord (401), a lower chord (402) and a web member (403). The web member (403) is connected between the upper chord (401) and the lower chord (402). Both ends of the upper chord (401) are connected to the top of the well shaft (6). The support frame (4) abuts against the cover plate (2) through the upper chord (401).

3. The reinjection well protection device according to claim 2, characterized in that, Both ends of the lower chord (402) are connected to the inner wall of the well shaft (6).

4. The reinjection well protection device according to claim 2, characterized in that, The upper chord (401), the lower chord (402), and the web member (403) are all ribbed steel bars.

5. A reinjection well protection device according to claim 2, characterized in that, The support frame (4) also includes a top plate (404), the bottom surface of which is connected to the upper chord (401), and the support frame (4) abuts against the cover plate (2) through the top surface of the top plate (404).

6. A reinjection well protection device according to any one of claims 1-5, characterized in that, Both the fixing plate (1) and the cover plate (2) are steel plates with a thickness of 15mm-30mm.

7. A reinjection well protection device according to claim 6, characterized in that, The fixing plate (1) is embedded in the road (7).

8. A reinjection well protection device according to claim 6, characterized in that, The top surface of the fixing plate (1) and the top surface of the cover plate (2) are flush with the road surface (701) of the road (7).

9. A reinjection well protection device according to claim 6, characterized in that, The cover plate (2) is square in shape.

10. A reinjection well, characterized in that, Includes a water injection pipe (5) and a reinjection well protection device as described in any one of claims 1-9, wherein the horizontal section of the water injection pipe (5) is located below the fixing plate (1) and the cover plate (2), and the horizontal section of the water injection pipe (5) is parallel to the support frame (4).

Images