Coupling device and submersible pump with same

Abstract

The utility model discloses a coupling device and a submersible pump with the coupling device, the coupling device comprises a guide piece, and the guide piece is used for providing at least two mounting surfaces; a rod passing hole is formed in the coupling piece, and the guiding piece is used for providing an installation face for guiding installation of the rod passing hole; through the cooperation between the guiding piece and the coupling piece, when the guiding piece and the coupling piece slide in a matched mode, at least one intersecting line is formed between at least two installation faces between the guiding piece and the coupling piece, it is guaranteed that the coupling piece slides on the guiding piece, and meanwhile the coupling piece can be prevented from rotating around the guiding piece; therefore, the pump body can be guided only by using one guide piece, and the installation work of the pump body and the base is completed.

Description

Technical Field

[0001] This utility model belongs to the technical field of submersible pump drainage, specifically relating to a coupling device and a submersible pump with the coupling device. Background Technology

[0002] Submersible pumps are fluid transport devices that can be submerged in water. They use a submersible motor to drive an impeller to rotate, utilizing centrifugal force to draw and lift water. They are now widely used in drainage, irrigation, and deep well water extraction, and are characterized by their compact structure and ease of use.

[0003] Submersible pumps are mainly submersible sewage pumps, and are primarily used in municipal engineering, building construction, industrial sewage discharge, and wastewater treatment. Installation methods include mobile installation, fixed installation, and coupled installation. Among these, coupled installation is easier to maintain than mobile installation, more efficient than fixed installation, and can be operated by a single person, making it more widely used in practical applications.

[0004] Currently, most existing coupling installation methods involve setting guide rods at the installation location for coupling installation. Multiple guide rods are typically used on one side of the submersible pump. Due to the restriction of multiple guide rods, the pump body will not rotate during installation. While some methods use a single guide rod, this can lead to rotational deviation of the pump body along the guide rod during coupling installation, causing gaps at the mounting surface. Using multiple guide rods for coupling installation increases costs and can cause interference between the pump body and the guide rods during manufacturing if dimensional deviations occur, resulting in frictional damage to both the pump body and the guide rods.

[0005] In view of this, the existing technology has obvious shortcomings in the installation methods of single or multiple guide rods. In this regard, this application provides a coupling device and a submersible pump with coupling device to provide fast and non-destructive coupling installation. Utility Model Content

[0006] Purpose of the utility model: To provide a coupling device and a submersible pump with a coupling device to solve the above-mentioned problems existing in the prior art.

[0007] Technical solution: A coupling device, comprising:

[0008] Guide element, the guide element being used to provide at least two mounting surfaces;

[0009] A coupling element having a through hole, and a guide element for providing a mounting surface for guiding installation through the through hole.

[0010] In a further embodiment, there is at least one intersecting line between the mounting surfaces.

[0011] In a further embodiment, it is used for mounting the pump body to the base;

[0012] The coupling element has a coupling portion formed thereon, and a flange is provided on the mounting side of the base. When the pump body is coupled to the base, the coupling portion is coupled to the flange.

[0013] In a further embodiment, a support surface is formed on the flange, and the coupling part is tightly fitted to the support surface to form a coupling between the coupling part and the flange.

[0014] In a further embodiment, the coupling portion includes a deformation portion for providing elastic deformation, thereby providing a force for a tight fit connection between the coupling portion and the mounting surface.

[0015] In a further embodiment, a movable seal is provided on the mounting side of the coupling member, the movable seal being used to provide a seal for coupling the pump body and the base.

[0016] In a further embodiment, the coupling member has a connection hole, and a connector for detachably connecting the coupling member to the pump body is movably connected at the connection hole.

[0017] In a further embodiment, the through hole is configured as a closed hole or a non-closed hole.

[0018] In a further embodiment, the mounting side of the base is provided with blind holes for mounting the guide.

[0019] A submersible pump with a coupling device includes:

[0020] A base, wherein an mounting side is provided on the base;

[0021] A pump body, wherein a coupling side is provided on the pump body;

[0022] A guide member, the guide member being used to provide at least two mounting surfaces, the guide member being disposed on the mounting side of the base;

[0023] The coupling element has a through-rod hole, and the guide element provides a mounting surface for guiding the installation of the through-rod hole. The coupling element is detachably disposed on the coupling side of the pump body to guide the coupling of the pump body and the base.

[0024] Beneficial effects: This utility model relates to a coupling device and a submersible pump with a coupling device. The device, through the cooperation between the set guide and the coupling, ensures that when the guide and the coupling slide together, there is at least one intersecting line between at least two mounting surfaces of the two. While ensuring that the coupling slides on the guide, it can also prevent the coupling from revolving around the guide. Therefore, only one guide is needed to guide the submersible pump and complete the installation of the submersible pump and the base. Attached Figure Description

[0025] Figure 1 This is an overall structural diagram of a submersible pump with a coupling device according to the present invention.

[0026] Figure 2 This is a cross-sectional view of the coupling device of this utility model.

[0027] Figure 3 This is a schematic diagram of the base of this utility model.

[0028] Figure 4 This is a schematic diagram of the coupling slide plate of this utility model.

[0029] Figure 5 This is a diagram showing the position of the check ball when the right-side submersible pump is working.

[0030] Figure 6 This is a diagram showing the position of the check ball when two submersible pumps are working simultaneously.

[0031] Figure 7 This is a diagram showing the position of the check ball when neither of the two submersible pumps is working.

[0032] Figure 8 This is a cross-sectional view of the guide member in the second embodiment of this utility model.

[0033] Figure 9 This is a cross-sectional view of the guide member in the third embodiment of this utility model.

[0034] Figure 10 This is a cross-sectional view of the guide member in the fourth embodiment of this utility model.

[0035] Figure 11 This is a cross-sectional view of the guide member in the fifth embodiment of this utility model.

[0036] The figures are labeled as follows: 1. Submersible pump; 2. Guide component; 3. Screw; 4. Ball cover plate; 5. Base; 6. Coupler; 7. Bolt; 8. Left check ball; 9. Outlet; 10. Right check ball; 11. Moving seal; 12. Sealing gasket; 13. Through-rod hole; 14. Deformation part; 15. Connecting hole; 16. Stepped surface; 17. Blind hole; 18. Inclined surface; 19. Circular hole; 20. Threaded hole. Detailed Implementation

[0037] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0038] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0039] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0040] Example 1:

[0041] A specific embodiment of a submersible pump with a coupling device according to this application includes:

[0042] The pump body comprises a base 5 and a pump body. The base 5 has a mounting side for coupling with the pump body. At least one side of the mounting side is provided on the base 5, preferably two sides symmetrically arranged along the base 5. The pump body has a coupling side for coupling with the mounting side. A coupling member 6 is detachably connected to the coupling side. A guide member 2 is provided on the mounting side of the base 5, providing at least two mounting surfaces. A rod-through hole 13 is formed on the coupling member 6. A blind hole 17 is also provided on the mounting side for mounting the guide member 2. The mounting of the guide member 2 and the blind hole 17 includes, but is not limited to, a movable connection or a fixed connection. The guide member 2 provides mounting surfaces for guiding the rod-through hole 13 during installation, thus guiding the coupling installation of the pump body and the base 5.

[0043] The guide 2 preferably has two mounting surfaces. Since the two mounting surfaces will form a mutual constraint, when the through-rod hole 13 is guided and installed, it will form contact with the mounting surfaces on both sides. Under the action of the contact on both sides, the through-rod hole 13 can be restricted from rotating along the axis of the guide 2, thereby restricting the coupling member 6 to move only along the axis of the guide 2 without rotating, thus providing a guide support for the coupling installation of the pump body and the base 5.

[0044] In this embodiment, the two mounting surfaces are set at an angle. When the guide 2 and the coupling 6 are engaged, the at least two mounting surfaces (a combination of arched surface and plane) not only enable the coupling 6 to move in the length direction of the guide 2, so that the pump body and the base 5 can be coupled and installed, but also prevent the coupling 6 from rotating around the guide 2 during the movement, so that one guide 2 can complete the installation of one pump body.

[0045] The through hole 13 can be a closed hole or an open hole. The through hole 13 enables the coupling member 6 to couple with the guide member 2, thereby limiting the coupling member 6 and preventing it from falling off the guide member 2.

[0046] The base 5 has a chamber with multiple water inlets for connecting to the water outlets 9 of the water inlets. The base 5 also has a number of check balls equal to the number of water inlets. By changing the working state of the submersible pump 1 and adjusting the position of the check balls, the transport and water stoppage of the liquid can be completed.

[0047] For ease of description, Figure 5 In this system, the check ball closer to the outlet 9 of the base 5 is the right check ball 10, and the check ball farther away from the outlet 9 of the base 5 is the left check ball 8. The side of the base 5 with the right check ball 10 is the right side, and the other side is the left side. The base 5 is also provided with a placement cavity, and the check ball is located in the placement cavity. When the submersible pump 1 is working, the check ball will not block the outlet 9 of the base 5, thereby ensuring the smooth operation of the water conveyance.

[0048] During operation, the transportation work of each submersible pump 1 is independent of each other. When one of the submersible pumps 1 is draining water, it starts to work. The moving submersible pump 1 can transport sewage to the base 5. Then the sewage can push the check ball to rise, so that the liquid can be transported from the inlet of the base 5 to the outlet 9, thus completing the sewage transportation work. When multiple submersible pumps 1 are working, the liquid transported to the base 5 by multiple submersible pumps 1 flows out from the same outlet 9 in the base 5, thus completing the horizontal sewage discharge work.

[0049] For ease of description, this device uses two submersible pumps 1. The base 5 has at least two water inlets and one water outlet 9 for connecting the water inlets. The submersible pumps 1 are connected to the water inlets of the base 5 respectively. Through the coupling device, it is possible to start one submersible pump 1 and keep it on standby, start both submersible pumps 1 simultaneously, and stop both submersible pumps 1 simultaneously with a water-stopping function. When the left submersible pump 1 starts, the left check ball 8 is pushed up and the right check ball 10 stops the water. When the right submersible pump 1 is working, the right check ball 10 is pushed up and the left check ball 8 stops the water. When both submersible pumps 1 start at the same time, both left and right check balls are pushed up at the same time. When neither submersible pump 1 is working, both left and right check balls stop the water at the same time to prevent backflow of water in the main pipeline.

[0050] By installing two check balls, the two submersible pumps 1 can start and stop simultaneously, with one in use and the other on standby. By setting the two submersible pumps 1 to share a base 5, the design requirements can be met by a single outlet pipe, which greatly saves the initial investment cost.

[0051] The base 5 has a circular hole 19 communicating with the chamber, and a plurality of threaded holes 20 are evenly arranged on the circular hole 19 for covering the circular hole 19, and screws 3 for connecting the threaded holes 20 and the ball cover plate 4. By disassembling and installing the ball cover plate 4 on the base 5, and since the ball cover plate 4 is used to cover the circular hole 19, when the check ball is damaged, the maintenance and repair of the check ball can be completed by disassembling the ball cover plate 4.

[0052] Example 2:

[0053] This is a specific embodiment of a submersible pump with a coupling device according to this application, which differs from Embodiment 1 in that:

[0054] In this embodiment, the mounting surface includes a flat surface and an arc surface. The end of the flat surface is used to connect to the end point of the arc surface to form a guide 2 with an arc-shaped cross-section.

[0055] Example 3:

[0056] This is a specific embodiment of a submersible pump with a coupling device according to this application, which differs from Embodiment 1 in that:

[0057] In this embodiment, the mounting surfaces are mutually orthogonal to form a guide 2 with an L-shaped cross-section.

[0058] Example 4:

[0059] This is a specific embodiment of a submersible pump with a coupling device according to this application, which differs from Embodiment 1 in that:

[0060] In this embodiment, the mounting surface has four surfaces. The mounting surface includes a groove formed by recessing inward from the outer periphery of a circular cross-section. The grooves are symmetrically arranged along the circumference and cut the circumference into a first circumferential surface and a second circumferential surface. The symmetrically arranged grooves form a first concave surface and a second concave surface, respectively. Therefore, the mounting surface has four surfaces including a first circumferential surface, a first groove, a second circumferential surface, and a second groove.

[0061] Example 5:

[0062] This is a specific embodiment of a submersible pump with a coupling device according to this application, which differs from Embodiment 1 in that:

[0063] In this embodiment, the mounting surface consists of three surfaces, which are connected end to end to form a guide 2 with a triangular cross-section.

[0064] A coupling device for mounting a submersible pump 1 and a base 5, applicable to any one of Embodiments 1 to 5, comprising:

[0065] The pump body comprises a guide 2 and a coupling member 6, wherein a coupling portion is formed on the coupling member 6, and a flange is provided on the mounting side of the base 5. When the pump body is coupled to the base 5, the coupling portion is coupled to the flange.

[0066] A support surface is formed on the flange, and the coupling part is tightly connected to the support surface to form a coupling between the coupling part and the flange.

[0067] The coupling part includes a deformation part 14, which is used to provide elastic deformation and provide a force for tight connection between the coupling part and the mounting surface;

[0068] The flange has a stepped surface 16 and an inclined surface 18 on the stepped surface 16. The deformable part 14 includes, but is not limited to, a lug with predetermined elasticity, and the lug has a groove that engages with the inclined surface 18. Through the cooperation of the stepped surface 16 and the inclined surface 18, the deformable part 14 can engage with the inclined surface 18 during the engagement of the coupling member 6 and the base 5, so that the coupling member can be installed on the base 5, ensuring the installation of the submersible pump 1. The deformable part 14 allows the coupling member 6 to move along the guide member 2, so that the deformable part 14 can be engaged on the base 5. During maintenance, the deformable part 14 can be moved by the traction chain connected to the pump body, and the deformable part 14 can be detached from the base 5, eliminating the need for installers to go down into the pit to disassemble the submersible pump 1.

[0069] A movable seal 11 is provided on the mounting side of the coupling member 6. The movable seal 11 is used to provide a seal between the pump body and the base 5. The movable seal 11 ensures that the fluid transported from the pump body can enter the base 5 to complete the fluid transport. One end of the movable seal 11 is a conical structure. The movable seal 11 is built into the coupling member 6 and can move within the coupling member 6. When the pressure at the pump body outlet is high, the water flow can push the movable seal 11 forward toward the base 5 and make the movable seal 11 fit with the base 5 to achieve the sealing of the water flow. At the same time, when a gap is generated between the coupling member 6 and the base 5 due to error, the movable seal 11 will still be pushed to move under the action of the water flow, thereby sealing the gap and achieving the sealing effect to ensure the normal transport of water.

[0070] The coupling member 6 has a connection hole 15, and a connector (bolt 7) is movably connected to the connection hole 15 for detachably connecting the coupling member 6 to the pump body. A sealing gasket 12 is also provided between the coupling member 6 and the pump body to form an integral structure between the coupling member 6 and the pump body. Thus, by moving the coupling member 6 on the guide member 2, the installation of the pump body is completed.

[0071] Working principle description: During installation, the guide 2 is first installed in the blind hole 17 on the mounting side of the base 5. Then, the coupling 6 is fixed to the pump body through the connector. By fitting the coupling 6 onto the guide 2, the pump body and the coupling 6 can slide on the guide 2, so that the pump body can be installed on the base 5, thus completing the installation of the submersible pump 1.

[0072] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the present invention itself. Various changes in form and detail may be made to the present invention without departing from the spirit and scope of the appended claims.

Claims

1. A coupling device, characterized in that include: Guide (2), the guide (2) being used to provide at least two mounting surfaces; The coupling member (6) forms a through hole (13), and the guide member (2) is used to provide a mounting surface for guiding the through hole (13) during installation.

2. The coupling device according to claim 1, characterized in that: There is at least one intersecting line between the mounting surfaces.

3. A coupling device according to claim 1, characterised in that: For installation of the pump body and base (5); The coupling member (6) has a coupling part, and the mounting side of the base (5) is provided with a flange. When the pump body is coupled to the base (5), the coupling part is coupled to the flange.

4. The coupling device according to claim 3, characterized in that: A support surface is formed on the flange, and the coupling part is tightly fitted to the support surface to form a coupling between the coupling part and the flange.

5. A coupling device according to claim 3, characterized in that: The coupling part includes a deformation part (14) which is used to provide elastic deformation and provide a force for tight connection between the coupling part and the mounting surface.

6. A coupling device according to claim 3, characterized in that: The mounting side of the coupling member (6) is provided with a movable seal (11), which is used to provide a seal for coupling the pump body and the base (5).

7. A coupling device according to claim 3, characterized in that: The coupling member (6) has a connection hole (15), and a connector for detachably connecting the coupling member (6) to the pump body is movably connected at the connection hole (15).

8. A coupling device according to claim 1, characterized in that: The through hole (13) is configured as either a closed through hole (13) or a non-closed through hole.

9. A coupling device according to claim 3, characterized in that: The mounting side of the base (5) is provided with a blind hole (17) for mounting the guide (2).

10. A submersible pump having a coupling device, characterized in that include: A base (5) is provided with an installation side; Pump body, wherein a coupling side is provided on the pump body; Guide (2), the guide (2) is used to provide at least two mounting surfaces, the guide (2) is disposed on the mounting side of the base (5); The coupling member (6) has a through hole (13) and the guide member (2) is used to provide a mounting surface for the through hole (13) to guide the installation. The coupling member (6) is detachably disposed on the coupling side of the pump body to guide the pump body to couple with the base (5).

Images