A slant wellbore submersible pump
By installing a pump truck structure, including a support base and roller shaft, on the submersible pump, the problem of laborious lifting of the submersible pump in the wellbore is solved, achieving stable sliding and convenient installation, reducing manual labor intensity, and improving reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU GUOQUAN PUMP MFG CO LTD
- Filing Date
- 2025-08-26
- Publication Date
- 2026-07-14
AI Technical Summary
Existing submersible pumps are difficult to control freely in terms of height and speed during lifting and lowering within the wellbore, resulting in labor-intensive lifting, especially in deep wells or in situations requiring frequent maintenance, where manual labor intensity is high.
Design an inclined well submersible pump with a pump truck structure, consisting of a support base, rollers, and roller shafts. The rollers protrude from the support base to support the submersible pump body and are fixed with clamps, enabling the submersible pump to slide stably up and down inside the well and reducing the tension on the ropes.
It improves the stability of submersible pump installation and maintenance in wellbore, reduces manual labor intensity, and enhances reliability and convenience of use.
Smart Images

Figure CN224496852U_ABST
Abstract
Description
Technical Field
[0001] This invention relates to submersible pumps, and more particularly to an inclined well submersible pump. Background Technology
[0002] In recent years, submersible pumps have been increasingly used in urban drainage and agricultural irrigation projects due to their advantages such as simple structure, convenient maintenance, and low investment. Since submersible pumps are mainly hoisted into the well shaft by wire ropes, they need to be lifted out of the shaft for maintenance. Currently, lifting most submersible pumps is quite laborious, making it difficult to freely control the height and speed of the pump inside the well shaft during lifting or lowering. There is an urgent need for a submersible pump equipped with a pulley system. This system facilitates the rapid installation and lifting of the pump, especially in deep wells or situations requiring frequent maintenance, significantly reducing manual labor intensity.
[0003] With the acceleration of global agricultural modernization and the continuous advancement of infrastructure construction, the demand for efficient and convenient submersible pumps continues to grow. Especially in water-scarce regions, submersible pumps with pulleys are favored by the market due to their ease of installation and maintenance. With the continuous growth of market demand and ongoing technological innovation, the market prospects for this product are very broad. Summary of the Invention
[0004] To address the aforementioned technical problems, a slanted well submersible pump is provided that is easy to install and maintain, and can reduce manual labor intensity and improve work efficiency. During installation and maintenance, the pump body slides up and down inside the well via ropes and a pump truck, which improves the stability of the pump body, reduces the tension on the ropes, facilitates the raising and lowering of the pump body inside the well, and enhances the reliability of the pump body.
[0005] The technical solution adopted to achieve the above objectives is as follows: an inclined well submersible pump, comprising a submersible pump body, a well, and a pump truck. The pump truck mainly consists of a support base, rollers, and roller shafts. The support base is made from a single piece of material. Roller shafts are provided on the left and right sides below the support base. The rollers are fitted onto the roller shafts and protrude outside the support base to support the submersible pump body and its vertical movement within the well. The pump truck is located within the inner circle of the support base.
[0006] Furthermore, a groove is provided on each of the left and right sides below the support base, and a roller shaft and a roller are disposed in the groove.
[0007] Furthermore, the roller shaft has a straight or symmetrical groove structure on both sides, and the groove is inserted into the groove on both sides of the support base and connected to the support base.
[0008] Furthermore, the pump truck is also equipped with a clamp, which is connected to the support seat to fix the pump truck to the outer periphery of the submersible pump body. The pump truck is used to support the submersible pump body to move up and down inside the inclined well.
[0009] Furthermore, the clamps, support seats, rollers, and roller shafts in the pump truck consist of at least two sets.
[0010] Furthermore, the pump truck can also remove the clamps and connect the two support seats, which are respectively equipped with rollers and roller shafts, through flanges, so that the number of pump trucks on the submersible pump body changes from two to four.
[0011] Furthermore, the guide vane body of the submersible pump body is provided with a conical seat near the outlet flange, which is connected to the well barrel.
[0012] The beneficial effects of this invention are as follows: A pump carriage is installed on the submersible pump body. The pump carriage mainly consists of a support base, rollers, and roller shafts. The support base is cut from a single piece of material, and roller shafts are provided on both the left and right sides below the support base. The rollers are fitted onto the roller shafts, and the rollers protrude outside the support base to support the submersible pump body and facilitate its vertical movement. This makes the submersible pump body slide more smoothly and steadily up and down in the wellbore during installation and maintenance, improving the stability of the submersible pump body during installation and maintenance, reducing the tension on the ropes, and facilitating the raising and lowering of the submersible pump body in the wellbore, thus improving the reliability of the submersible pump body. In addition, the roller shaft is designed with a forked structure. This structure can control the gap between the roller shaft and the support base, preventing the roller shaft from getting stuck due to welding deformation. It also allows adjustment of the distance from the roller to the center before welding. Furthermore, the roller shaft structure can also be a round shaft. Attached Figure Description
[0013] Figure 1 This is a top view of an inclined wellbore submersible pump according to the present invention.
[0014] Figure 2 This is a schematic diagram of the second structure of the roller shaft in the pump truck of an inclined well submersible pump according to the present invention.
[0015] Figure 3 This is a schematic diagram of the third structure of the roller shaft in the pump truck of an inclined well submersible pump according to the present invention.
[0016] Figure 4 This is a top view of a slanted well submersible pump of the present invention, with four pump trucks installed.
[0017] Figure 5 This is a schematic diagram of the structure of an inclined well submersible pump according to the present invention.
[0018] In the diagram: 1. Submersible pump body, 1-1. Guide vane body, 2. Well shaft, 3. Pump truck, 4. Clamp, 5. Support seat, 5-1. Groove, 5-2. Inner circle, 6. Roller, 7. Roller shaft, 7-1. Groove, 8. Conical seat. Detailed Implementation
[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but the scope of protection of the present invention is not limited thereto.
[0020] As shown in the figure, it mainly includes a submersible pump body (1), a well shaft (2), and a pump truck (3). The pump truck (3) is mainly composed of a support base (5), rollers (6), and roller shafts (7). The support base (5) is made from a single piece of material. Roller shafts (7) are provided on the left and right sides below the support base (5). The rollers (6) are fitted on the roller shafts (7). The rollers (6) protrude outside the support base (5) to support the submersible pump body (1) and the submersible pump body (1) moving up and down inside the well shaft (2). The pump truck (3) is located in the inner circle (5-2) of the support base (5).
[0021] The support base (5) has a groove (5-1) on each of its left and right sides below it, and a roller shaft (7) and a roller (6) are provided in the groove (5-1).
[0022] The roller shaft (7) has a straight or symmetrical groove (7-1) structure on both sides. The groove (7-1) is inserted into the groove (5-1) on both sides of the support base (5) and connected to the support base (5).
[0023] The pump truck (3) is also equipped with a clamp (4), which is connected to the support seat (5) to fix the pump truck (3) on the outer periphery of the submersible pump body (1). The pump truck (3) is used to support the submersible pump body (1) to move up and down in the inclined well barrel (2).
[0024] The clamps (4), support seats (5), rollers (6) and roller shafts (7) in the pump truck (3) consist of at least two sets.
[0025] The pump truck (3) can also remove the clamp (4) setting and connect the two support seats (5) with rollers (6) and roller shafts (7) respectively through flanges, so that the pump truck (3) on the submersible pump body (1) is changed from two sets to four sets.
[0026] The guide vane body (1-1) of the submersible pump body (1) is provided with a conical seat (8) near the outlet flange, and the conical seat (8) is connected to the well barrel (2).
[0027] The specific installation principle of this invention is as follows:
[0028] A pump truck (3) is installed on the outer periphery of the submersible pump body (1). The pump truck is mainly composed of a support base (5), rollers (6) and roller shafts (7). The support base (5) is made from a single piece of material. Roller shafts (7) are provided on the left and right sides below the support base (5). The rollers (6) are fitted on the roller shafts (7). The rollers (6) protrude from the support base (5) to support the submersible pump body (1) and ensure that the submersible pump body (1) moves up and down in the well shaft (2). This structure makes the submersible pump body (1) slide up and down more smoothly and smoothly in the well shaft (2) during installation and maintenance, improves the stability of the submersible pump body (1) during installation and maintenance, reduces the tension of the submersible pump body (1) on the rope, and facilitates the lifting and lowering of the submersible pump body (1) in the well shaft (2), thereby improving the reliability of the submersible pump body 1. Alternatively, the roller shaft (6) can be designed with symmetrical grooves (7-1) on both sides. The grooves (7-1) are inserted into the grooves (5-1) on both sides of the support base (5) and connected to the support base (5). This structure can control the gap between the support base (5) and the roller shaft (7), and will not cause the roller shaft (6) to get stuck due to welding deformation. The distance from the roller (6) to the center can also be adjusted before welding. In addition, the roller shaft (7) can also be a round shaft, which is simpler and easier to install.
[0029] The clamps (4), support seats (5), rollers (6) and roller shafts (7) in the pump truck (3) consist of at least two sets.
[0030] The pump truck (3) can also remove the clamp (4) setting and connect the two support seats (5) with rollers (6) and roller shafts (7) respectively through flanges, so that the pump truck (3) on the submersible pump body (1) is changed from two sets to four sets.
[0031] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The scope of protection of the present invention is not limited to the above embodiments, but also includes other embodiments and variations within the scope of the inventive concept.
[0032] The scope of protection of this invention is not limited to the above embodiments, but also includes other embodiments and variations within the scope of the inventive concept.
Claims
1. A type of inclined well submersible pump, mainly comprising a submersible pump body (1), a well shaft (2), and a pump truck (3), characterized in that: The pump truck (3) is mainly composed of a support base (5), rollers (6) and roller shafts (7); the support base (5) is made from a single piece of material, and roller shafts (7) are provided on the left and right sides below the support base (5). The rollers (6) are fitted on the roller shafts (7), and the rollers (6) protrude outside the support base (5) to support the submersible pump body (1) and the submersible pump body (1) moving up and down inside the well (2); the pump truck (3) is in the inner circle (5-2) of the support base (5).
2. The inclined well submersible pump according to claim 1, characterized in that: The support base (5) has a groove (5-1) on each of its left and right sides below it, and a roller shaft (7) and a roller (6) are provided in the groove (5-1).
3. The inclined well submersible pump according to claim 1, characterized in that: The roller shaft (7) has a straight or symmetrical groove (7-1) structure on both sides. The groove (7-1) is inserted into the groove (5-1) on both sides of the support base (5) and connected to the support base (5).
4. The inclined well submersible pump according to claim 1, characterized in that: The pump truck (3) is also equipped with a clamp (4), which is connected to the support seat (5) to fix the pump truck (3) on the outer periphery of the submersible pump body (1). The pump truck (3) is used to support the submersible pump body (1) to move up and down in the inclined well barrel (2).
5. A slanted wellbore submersible pump according to claim 1, characterized in that: The clamps (4), support seats (5), rollers (6) and roller shafts (7) in the pump truck (3) consist of at least two sets.
6. A slanted well submersible pump according to claim 1, characterized in that: The pump truck (3) can also remove the clamp (4) setting and connect the two support seats (5) with rollers (6) and roller shafts (7) respectively through flanges, so that the pump truck (3) on the submersible pump body (1) is changed from two sets to four sets.
7. A slanted well submersible pump according to claim 1, characterized in that: The guide vane body (1-1) of the submersible pump body (1) is provided with a conical seat (8) near the outlet flange, and the conical seat (8) is connected to the well barrel (2).