Inclined shaft anti-slope drainage device

By introducing a transmission component and a backwash structure into the inclined shaft reverse slope drainage device, the problem of easy clogging of the filter structure is solved, and automatic removal of debris is achieved, thereby improving drainage efficiency and equipment life.

CN224326311UActive Publication Date: 2026-06-05SICHUAN ROAD & BRIDGE SHENGTONG CONSTR ENG CO

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN ROAD & BRIDGE SHENGTONG CONSTR ENG CO
Filing Date
2025-08-25
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

The existing inclined shaft reverse slope pumping and drainage device's filter structure is prone to clogging, resulting in poor drainage and requiring frequent manual cleaning, which affects the construction progress.

Method used

A reverse slope pumping and drainage device for inclined wells was designed. It adopts a transmission component and a backwash structure. The impeller drives the filter screen to rotate and uses backwash water flow to remove impurities. Combined with the L-shaped water inlet pipe design, impurities are easily removed from the filter screen under the action of gravity. The backwash structure is set to further remove attached impurities.

Benefits of technology

It enables automatic removal of debris from the surface of the filter screen, reducing manual intervention and improving drainage efficiency and equipment lifespan.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an inclined shaft anti-slope water drainage device relates to drainage device technical field, including the water inlet and the water outlet respectively install the water pump of water inlet pipe and hose, the upside of water pump is provided with the float, and the end portion of water inlet pipe is rotatably installed with filter screen cover away from water pump, and the transmission assembly is arranged between water inlet pipe and filter screen cover, and the transmission assembly includes impeller and transmission shaft, and the impeller rotatably installs in the inside of water inlet pipe, and transmission shaft is fixed between impeller and filter screen cover, and the side of filter screen cover away from water inlet pipe water inlet direction is provided with backflush structure. The utility model discloses the cooperation setting of transmission assembly and backflush structure, the process of water flow through water inlet pipe, make the impeller rotate with filter screen cover through transmission shaft, and the water part of hose passes through return branch and sprays from the water spray small hole of water distribution spray pipe, and the water column sprays from inside to outside through filter screen cover, and removes the sundries adhered to the outer surface of filter screen cover, to make the water inlet more smooth.
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Description

Technical Field

[0001] This utility model relates to the field of drainage device technology, and in particular to a reverse slope pumping and drainage device for inclined shafts. Background Technology

[0002] When advancing construction at the face of a tunnel (tunnel) in a water-rich stratum on a reverse slope, it is necessary to promptly pump out the accumulated water near the face to avoid affecting construction. This is usually achieved by using a submersible pump with a flexible hose to drain the water.

[0003] A search revealed, for example, a water-rich inclined shaft reverse slope pumping and drainage device provided by patent publication number CN219261072U. This device includes a submersible trolley at one end of a relay trolley, connected to the relay trolley via a hose. The other end of the relay trolley is connected to a water pipe, which is connected to a fixed pumping station. The trolley contains a pumping assembly, with a submersible inlet pipe at one end and a submersible outlet pipe at the other. This design eliminates the need for mechanical and manual coordination between previously independent devices. The integrated design is more effective for pumping and draining water gushing from the reverse slope face. The filters installed on the submersible trolley and relay trolley effectively reduce the load on the surface wastewater treatment station and extend the service life of each piece of equipment.

[0004] Based on the above search and analysis of existing technologies, it has been found that while existing inclined shaft reverse slope drainage devices similar to those disclosed above incorporate a filtration structure, this structure itself is prone to clogging, leading to poor drainage and requiring frequent manual cleaning, which is quite troublesome. Therefore, an inclined shaft reverse slope drainage device is proposed to address these issues. Utility Model Content

[0005] The purpose of this application is to provide a reverse slope pumping and drainage device for inclined shafts to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides the following technical solution: a reverse slope pumping and drainage device for inclined shafts, including a water pump, with an inlet pipe and a hose installed at the inlet and outlet of the water pump, respectively, and a float on the upper side of the water pump, the float being connected to the water pump via a mounting bracket.

[0007] A filter screen is rotatably installed at the end of the inlet pipe away from the water pump. A transmission assembly is set between the inlet pipe and the filter screen. When the water pump is operating, the filter screen rotates through the transmission assembly as the water flows through the inlet pipe.

[0008] As a further supplement to this solution, the transmission assembly includes an impeller and a transmission shaft. The impeller is rotatably mounted inside the water inlet pipe, and the transmission shaft is coaxially arranged with the water inlet pipe and fixed between the impeller and the filter screen.

[0009] As a further supplement to this solution, the inlet pipe is L-shaped, with the part of the inlet pipe away from the water pump set horizontally, and the side of the filter screen away from the water inlet direction is equipped with a backwash structure.

[0010] As a further supplement to this solution, the backflushing structure includes a return water branch pipe and a water distribution spray pipe. One end of the return water branch pipe is fixedly connected to the hose, and the other end of the return water branch pipe passes through the inlet pipe and extends to the inside of the filter screen. The water distribution spray pipe is located on the side of the filter screen away from the water inlet direction of the inlet pipe, and the water distribution spray pipe is fixedly connected to the return water branch pipe.

[0011] The water distribution nozzle and the filter screen are arranged coaxially, and the side of the water distribution nozzle away from the water inlet pipe is densely covered with small water spray holes.

[0012] As a further supplement to this solution, an auxiliary support frame is fixed between the water inlet pipe and the water distribution spray pipe.

[0013] As a further supplement to this solution, a support base is provided on the lower side of the water pump, and a support rod is fixed between the support base and the float.

[0014] In summary, the technical effects and advantages of this utility model are as follows:

[0015] 1. In this utility model, through the coordinated arrangement of the transmission component and the backwash structure, when the water pump is operating, the impeller drives the filter screen to rotate through the transmission shaft as the water flows through the inlet pipe. The water that passes through the hose is sprayed out from the spray hole of the water distribution nozzle through the return branch pipe. The water column is sprayed from the inside to the outside through the filter screen, removing the debris attached to the outer surface of the filter screen, thereby making the water intake smoother, greatly saving manpower, and improving drainage efficiency.

[0016] 2. In this utility model, by setting the water inlet pipe to an L-shape and setting the part of the water inlet pipe away from the water pump horizontally, and water entering from one side of the water inlet pipe, this design allows the impurities on the surface of the filter screen to be less affected by the water flow when the filter screen rotates to the water inlet side away from the water inlet pipe. Under its own gravity, the impurities are more likely to detach from the filter screen and are less likely to re-attach to the filter screen. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure in this embodiment;

[0019] Figure 2This is a schematic diagram of a partial cross-sectional structure in this embodiment.

[0020] In the diagram: 1. Water pump; 2. Inlet pipe; 3. Hose; 4. Filter screen; 5. Float; 6. Mounting bracket; 7. Support base; 8. Support rod; 9. Impeller; 10. Drive shaft; 11. Return water branch pipe; 12. Water distribution spray pipe; 13. Auxiliary support frame. Detailed Implementation

[0021] 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.

[0022] Example: Reference Figure 1-2 The inclined well reverse slope pumping and drainage device shown includes a water pump 1. The water pump 1 can be a conventional model, such as the ECP40ME water pump 1. The water pump 1 is equipped with an inlet pipe 2 and a hose 3 at its inlet and outlet, respectively. A float 5 is provided on the upper side of the water pump 1. The float 5 is connected to the water pump 1 by a mounting bracket 6. The float 5 can keep the water pump 1 close to the water surface, which can effectively prevent the bottom silt from clogging it.

[0023] A filter screen 4 is rotatably mounted on the end of the inlet pipe 2 away from the water pump 1. A transmission assembly is provided between the inlet pipe 2 and the filter screen 4. When the water pump 1 is operating, the filter screen 4 rotates through the transmission assembly as the water flows through the inlet pipe 2. Specifically, the transmission assembly includes an impeller 9 and a transmission shaft 10. The impeller 9 is rotatably mounted on the inside of the inlet pipe 2, and the transmission shaft 10 is coaxially arranged with the inlet pipe 2 and fixed between the impeller 9 and the filter screen 4.

[0024] When the water pump 1 is in operation, the impeller 9 rotates as the water flows through the inlet pipe 2. The impeller 9 then rotates the filter screen 4 through the drive shaft 10, which keeps the filter screen 4 in a non-static state, making it less likely for debris to adhere to its surface, thus making the water intake smoother.

[0025] The inlet pipe 2 is L-shaped, with the portion of inlet pipe 2 furthest from the water pump 1 positioned horizontally. This design allows the filter screen 4 to rotate to the inlet side furthest from the inlet pipe 2, such as... Figure 2 The arrow on the left indicates the direction of water inlet. Impurities on the surface of the filter screen 4 are less affected by the water flow and are more easily removed from the filter screen 4 under their own gravity.

[0026] In addition, a backwash structure is provided on the side of the filter screen 4 away from the water inlet pipe 2. Specifically, the backwash structure includes a return water branch pipe 11 and a water distribution spray pipe 12. One end of the return water branch pipe 11 is fixedly connected to the hose 3, and the other end of the return water branch pipe 11 passes through the water inlet pipe 2 and extends to the inside of the filter screen 4. The water distribution spray pipe 12 is located on the side of the filter screen 4 away from the water inlet pipe 2, and the water distribution spray pipe 12 is fixedly connected to the return water branch pipe 11. The water distribution spray pipe 12 is coaxially arranged with the filter screen 4, and the side of the water distribution spray pipe 12 away from the water inlet pipe 2 is densely covered with small spray holes.

[0027] When water pump 1 is operating, the water passing through hose 3 is sprayed out from the spray nozzles of water distribution pipe 12 via return branch pipe 11. The water column is sprayed from the inside out through filter screen 4. Figure 2 The arrow on the right indicates the direction of the backwash water jet, which further removes debris attached to the outer surface of the filter screen 4.

[0028] An auxiliary support frame 13 is fixed between the water inlet pipe 2 and the water distribution nozzle 12, which can enhance the support strength of the water distribution nozzle 12 and make the water distribution nozzle 12 less prone to deformation.

[0029] To facilitate stable placement of the pumping and drainage device, a support base 7 is provided on the lower side of the water pump 1, and a support rod 8 is fixed between the support base 7 and the float 5.

[0030] The working principle of this utility model is as follows: When the water pump 1 is working, the impeller 9 rotates as the water flows through the inlet pipe 2. The impeller 9 then rotates the filter screen 4 through the drive shaft 10. The water that passes through the hose 3 is sprayed out from the spray hole of the water distribution spray pipe 12 through the return branch pipe 11. The water column is sprayed from the inside to the outside through the filter screen 4, removing the debris attached to the outer surface of the filter screen 4, thereby making the water intake smoother.

[0031] It should be noted that the specific models and specifications of the electrical equipment involved in this solution need to be selected and determined based on the actual specifications of the device. The specific selection and calculation methods adopt existing technologies in this field, so they will not be described in detail here. Furthermore, the power supply and principle of the electrical equipment are clear to those skilled in the art, and will not be described in detail here.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 reverse slope pumping and drainage device for inclined shafts, comprising a water pump (1), characterized in that, The water pump (1) is equipped with an inlet pipe (2) and a hose (3) at its inlet and outlet, respectively. A float (5) is provided on the upper side of the water pump (1). The float (5) is connected to the water pump (1) by a mounting bracket (6). A filter screen (4) is rotatably installed at the end of the water inlet pipe (2) away from the water pump (1). A transmission assembly is provided between the water inlet pipe (2) and the filter screen (4). When the water pump (1) is operating, the filter screen (4) rotates through the transmission assembly as the water flows through the water inlet pipe (2).

2. The inclined shaft reverse slope pumping and drainage device according to claim 1, characterized in that: The transmission assembly includes an impeller (9) and a transmission shaft (10). The impeller (9) is rotatably mounted on the inside of the water inlet pipe (2). The transmission shaft (10) is coaxially arranged with the water inlet pipe (2) and is fixed between the impeller (9) and the filter screen (4).

3. The inclined shaft reverse slope pumping and drainage device according to claim 2, characterized in that: The water inlet pipe (2) is L-shaped, and the part of the water inlet pipe (2) away from the water pump (1) is set horizontally. The filter screen (4) is provided with a backwash structure on the side away from the water inlet pipe (2) in the water inlet direction.

4. The inclined shaft reverse slope pumping and drainage device according to claim 3, characterized in that: The backwash structure includes a return water branch pipe (11) and a water distribution spray pipe (12). One end of the return water branch pipe (11) is fixedly connected to the hose (3), and the other end of the return water branch pipe (11) passes through the water inlet pipe (2) and extends to the inside of the filter screen (4). The water distribution spray pipe (12) is located on the side of the filter screen (4) away from the water inlet direction of the water inlet pipe (2), and the water distribution spray pipe (12) is fixedly connected to the return water branch pipe (11). The water distribution nozzle (12) is coaxially arranged with the filter screen (4), and the side of the water distribution nozzle (12) away from the water inlet pipe (2) is densely covered with small water spray holes.

5. The inclined shaft reverse slope pumping and drainage device according to claim 4, characterized in that: An auxiliary support frame (13) is fixed between the water inlet pipe (2) and the water distribution spray pipe (12).

6. The inclined shaft reverse slope pumping and drainage device according to claim 1, characterized in that: A support base (7) is provided on the lower side of the water pump (1), and a support rod (8) is fixed between the support base (7) and the float (5).