Submersible electric pump coupling structure

Abstract

The utility model discloses a submersible electric pump coupling split structure, including support base structure and support connecting arm lever assembly. Support connecting arm lever assembly is fixed on the pump body, and the rectangular slot, mounting hole, sliding slot are set up on its connecting arm lever body, and it is equipped with the quick locking mechanism that is formed by support limiting shaft, helical spring, sliding block and push block. Support base structure includes lower support ring, upper connecting ring and the connecting arm plate with rectangular plug rod, and the round through -hole is opened on the rectangular plug rod. When installing, push push block and make support limiting shaft retract, and after rectangular plug rod is inserted into rectangular slot, loosen, and support limiting shaft pops out under the action of spring and penetrates round through -hole and limiting groove, realizes quick locking. The structure has realized the quick disassembly of base and pump body, and the device's applicability, maintenance convenience and economy are improved.

Description

Technical Field

[0001] This utility model relates to the field of submersible pump technology, specifically to a submersible pump connection split structure. Background Technology

[0002] Submersible pumps, as important underwater drainage equipment, are widely used in agricultural irrigation, municipal sewage discharge, mine drainage, river dredging, and construction wastewater removal. They typically consist of a motor, pump, and base support structure. In practical applications, especially in complex conditions such as river dredging and pond or foundation pit drainage, the depth of silt or the ground condition at the work surface changes frequently, necessitating dynamic adjustments to the pump's installation height and stability.

[0003] Currently, most submersible pumps on the market use a one-piece or welded fixed base structure. This design has the following significant drawbacks: First, when the height of the silt in the working environment changes, a fixed-height base may cause the pump's suction efficiency to decrease (the base sinks into the silt) or become unstable (the base is suspended). Users often need to stop the machine and use additional manual methods such as raising or digging to adapt, which seriously affects the continuity and efficiency of the operation.

[0004] Secondly, the base of a submersible pump is constantly submerged in sewage or silt containing sand, gravel, and debris, making it a high-risk area for wear and corrosion. When the base is damaged, due to the traditional integrated design, repair or replacement is extremely inconvenient. It usually requires lifting the entire pump out of the water and transporting it to a professional repair shop, or even replacing the entire pump, resulting in high maintenance costs and long downtime.

[0005] Therefore, we propose a separate structure for the submersible pump connection. Utility Model Content

[0006] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a submersible pump with a separate connection structure. Through a modular design that allows for quick assembly and disassembly of the base and pump body, it enables convenient transportation, flexible height adjustment to adapt to different working conditions, and targeted and rapid replacement of easily damaged bases. This significantly improves the applicability, maintenance efficiency, and economy of the equipment, and can effectively solve the problems in the background technology.

[0007] (II) Technical Solution To achieve the above objectives, the technical solution adopted by this utility model is as follows: a submersible pump connecting split structure, including a support base structure and a support connecting arm assembly, wherein the support connecting arm assembly is used to connect with the submersible pump and provides an installation interface for the support base structure; the support connecting arm assembly includes a connecting arm body, a rectangular slot, a support limiting shaft, a mounting hole, a limiting groove, a sliding groove, a helical spring, a slider, and a pushing block; the support base structure includes a lower support ring, an upper connecting ring, a triangular support plate, a connecting arm plate, and a rectangular insert; the number of connecting arm plates and rectangular inserts are both two sets, the two sets of connecting arm plates are fixed to the outer surfaces of both sides of the upper connecting ring, the rectangular inserts are fixed to the upper outer surface of the connecting arm plate, and a circular through hole is opened on one side of the rectangular insert, the circular through hole penetrating to the middle of the outer surface of the other side of the rectangular insert.

[0008] Preferably, the number of the triangular support plates is four sets, and the four sets of triangular support plates are welded at equal intervals between the upper outer surface of the lower support ring and the lower outer surface of the upper connecting ring.

[0009] Preferably, the rectangular slot is formed at one end of the upper outer surface of the connecting arm and extends to the lower outer surface of the connecting arm. A limiting groove is formed in the middle of one side of the rectangular slot, and a mounting hole is formed in the middle of the other side of the rectangular slot. The sliding groove is formed at the lower part of the mounting hole, and the mounting hole extends to the lower outer surface of the connecting arm.

[0010] Preferably, the helical spring is located in the mounting hole and is fixed between the end of the mounting hole and the outer surface of one end of the support limiting shaft. The slider is fixed to one end of the lower outer surface of the support limiting shaft. The slider passes through the slide groove, and the outer wall of the slider and the slide groove are in sliding fit. The push block is located at the lower part of the connecting arm and is fixed to the lower outer surface of the slider.

[0011] Preferably, the outer wall of the support limiting shaft and the mounting hole are in a sliding fit, one end of the outer surface of the support limiting shaft is elastically connected to one end of the mounting hole through a helical spring, and the end of the support limiting shaft away from the helical spring is engaged with the limiting groove.

[0012] Preferably, the outer wall of the rectangular insert rod and the rectangular slot are in a plug-in fit, and the outer wall of the support limiting shaft and the circular through hole are in a plug-in fit.

[0013] (III) Beneficial Effects Compared with the prior art, the present invention provides a structure for a separate connection of a submersible pump, which has the following advantages: 1. This submersible pump features a modular design for its support base, which is connected to the support arm assembly fixed to the pump body via a quick-locking mechanism consisting of a support limiting shaft, a helical spring, a slider, and a push block. During operation, simply pressing the push block unlocks and locks the pump, enabling rapid and reliable separation and assembly between the base and the pump body. This facilitates transportation (it can be packed separately) and on-site deployment, solving the problems of heavy handling and inconvenient installation associated with traditional integrated pump bodies.

[0014] 2. This submersible pump features a split connection structure. Because the support base structure can be easily replaced, the same submersible pump body can be flexibly matched with bases of different heights, specifications, or types according to different working environments. In situations where the silt depth changes frequently, such as river dredging and foundation pit drainage, there is no need to replace the entire pump or perform cumbersome manual elevation work. Simply replace it with a base module of suitable height, thereby effectively improving the pump's working efficiency, stability, and adaptability to complex environments.

[0015] 3. This submersible pump features a split-type connection structure. The support base is the most easily worn component. The split design makes maintenance extremely simple. When the base is worn due to long-term immersion or accidental damage, there is no need to lift the entire submersible pump out of the water and return it to the factory for repair. You only need to remove the old base and replace it with a new module. This achieves "targeted maintenance", shortens equipment downtime, saves high costs for disassembly, transportation and maintenance of the whole machine, and improves the service life and economy of the equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the submersible electric pump connection assembly of this utility model.

[0017] Figure 2 This is a schematic diagram of the support base structure in the submersible pump connection assembly of this utility model.

[0018] Figure 3 This is a schematic diagram of the connecting arm in the structure of the submersible electric pump connecting split of this utility model.

[0019] Figure 4 This is a front cross-sectional view of the connecting arm in the structure of the submersible electric pump connecting split of this utility model.

[0020] In the diagram: 1. Support base structure; 2. Support connecting arm assembly; 3. Lower support ring; 4. Upper connecting ring; 5. Triangular support plate; 6. Connecting arm plate; 7. Rectangular insert rod; 8. Circular through hole; 9. Connecting arm body; 10. Rectangular slot; 11. Support limiting shaft; 12. Mounting hole; 13. Limiting groove; 14. Slide groove; 15. Helical spring; 16. Slider; 17. Push block. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] like Figure 1-4 As shown, this embodiment of the invention provides a separate connection structure for a submersible pump, solving the problems of fixed bases, difficulty in adapting to different working conditions, and inconvenient maintenance in existing submersible pumps. The structure disclosed in this embodiment mainly includes an independently detachable support base structure 1 and a set of support connecting arm assemblies 2 fixed to the submersible pump body (not shown in the figure). Through the quick connection and separation of these two components, flexible adjustment of the submersible pump base height and specifications, as well as convenient maintenance and replacement, are achieved.

[0023] Specifically, the support base structure 1 consists of a lower support ring 3, an upper connecting ring 4, a triangular support plate 5, a connecting arm plate 6, and a rectangular insert rod 7. The lower support ring 3 and the upper connecting ring 4 are two coaxially arranged ring structures, serving as the main load-bearing and connecting frame of the base. Preferably, there are four sets of triangular support plates 5, evenly welded between the upper outer surface of the lower support ring 3 and the lower outer surface of the upper connecting ring 4, forming a stable truss-like support to ensure the overall structural strength and deformation resistance of the base. There are two sets of connecting arm plates 6, symmetrically and vertically fixed to the left and right outer surfaces of the upper connecting ring 4. A rectangular insert rod 7 is fixed to the upper outer surface of each set of connecting arm plates 6. The rectangular insert rod 7 has a rectangular cross-section, with a circular through hole 8 on one side, extending to the middle of the other outer surface of the rectangular insert rod 7 for subsequent locking.

[0024] The supporting connecting arm assembly 2 is used for fixed connection with the submersible pump body and provides an installation interface for the supporting base structure 1. Preferably, there are two sets of supporting connecting arm assemblies 2, with the connecting arm body 9 welded to suitable positions on the lower sides of the submersible pump body (the specific selection depends on the submersible pump model). A rectangular slot 10 is provided at one end of the upper outer surface of the connecting arm body 9, penetrating both the upper and lower end faces of the connecting arm body 9. Its shape and size match the rectangular insert 7, allowing the rectangular insert 7 to be inserted. A limiting groove 13 is provided in the middle of the inner wall on one side of the rectangular slot 10. A mounting hole 12, opposite to the limiting groove 13, is provided in the middle of the other side of the rectangular slot 10. A vertically extending sliding groove 14 connects to the lower part of the mounting hole 12, and the sliding groove 14 penetrates the lower end face of the connecting arm body 9.

[0025] Within the mounting hole 12, a support limiting shaft 11, a helical spring 15, and a slider 16 are provided. A push block 17 is fixedly mounted on the lower part of the slider 16. The helical spring 15 is fixed between the end of the mounting hole 12 (the end away from the limiting groove 13) and the outer surface of one end of the support limiting shaft 11. The support limiting shaft 11 is slidably mounted within the mounting hole 12, and its outer diameter is in sliding or clearance fit with the inner diameter of the mounting hole 12 and the inner diameter of the circular through hole 8. The slider 16 is fixed to the lower outer surface of the support limiting shaft 11 at the end away from the limiting groove 13 and extends downward through the slide groove 14. The shape of the slider 16 matches the cross-sectional shape of the slide groove 14, allowing the slider 16 to slide left and right along the slide groove 14. In its natural state (i.e., without pressing the push block 17), the elastic force of the coil spring 15 pushes the support limiting shaft 11 outward, allowing the end away from the coil spring 15 (i.e. the front end) to extend out of the mounting hole 12 and be inserted into the limiting groove 13 opposite the rectangular slot 10.

[0026] The installation and use process of this utility model is as follows: When it is necessary to install the support base structure 1 for the submersible pump, first manually push the push block 17 away from the limiting groove 13. The push block 17 drives the slider 16 to slide along the slide groove 14, and the slider 16 drives the support limiting shaft 11 to slide along the mounting hole (12). The front end of the support limiting shaft 11 exits from the limiting groove 13 and retracts completely into the mounting hole 12, so that the channel of the rectangular slot 10 is completely unobstructed. Then, align and insert the rectangular insert 7 connected to the connecting arm plate 6 on the support base structure 1 from bottom to top into the rectangular slot 10 on the connecting arm body 9 until the upper surface of the connecting arm plate 6 contacts the lower outer surface of the connecting arm body 9.

[0027] Next, under the restoring force of the helical spring 15, the support limiting shaft 11 is pushed outward, its front end passing through the mounting hole 12, inserting into the circular through hole 8 on the rectangular insert 7, and finally locking into the limiting groove 13 on the other side of the rectangular slot 10. At this time, the support limiting shaft 11 passes through the rectangular insert 7, and the rectangular insert 7 is firmly locked in the rectangular slot 10 through the "pin" principle, thereby realizing a quick and reliable connection between the support base structure 1 and the submersible pump body (through the support connecting arm assembly 2). The lower support ring 3 provides stable bottom support for the submersible pump.

[0028] When the working environment (such as the depth of silt) changes and a support base structure 1 of different height needs to be replaced, or when the support base structure 1 needs maintenance and replacement due to wear or corrosion, the disassembly process is extremely simple. Simply push the push block 17 again to completely disengage the front end of the support limiting shaft 11 from the limiting groove 13 and the circular through hole 8. Then, the entire support base structure 1 (through its rectangular insert 7) can be vertically pulled downwards from the rectangular slot 10 of the connecting arm 9, completing the separation. Afterwards, another compatible support base structure 1 can be installed.

[0029] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A structure for a submersible electric pump connection assembly, comprising a support base structure (1) and a support connecting arm assembly (2), characterized in that: The supporting connecting arm assembly (2) is used to connect with the submersible pump and provide an installation interface for the supporting base structure (1); the supporting connecting arm assembly (2) includes a connecting arm body (9), a rectangular slot (10), a supporting limiting shaft (11), a mounting hole (12), a limiting groove (13), a sliding groove (14), a helical spring (15), a slider (16), and a pushing block (17); the supporting base structure (1) includes a lower supporting ring (3), an upper connecting ring (4), a triangular supporting plate (5), a connecting arm plate (6), and a rectangular insert (7); the number of the connecting arm plate (6) and the rectangular insert (7) are both two sets, the two sets of the connecting arm plate (6) are fixed on the outer surfaces of both sides of the upper connecting ring (4), the rectangular insert (7) is fixed on the upper outer surface of the connecting arm plate (6), a circular through hole (8) is opened on one side of the rectangular insert (7), and the circular through hole (8) penetrates to the middle of the outer surface of the other side of the rectangular insert (7).

2. The structure of the submersible pump connection assembly according to claim 1, characterized in that: The number of the triangular support plates (5) is four sets, and the four sets of triangular support plates (5) are welded at equal intervals between the upper outer surface of the lower support ring (3) and the lower outer surface of the upper connecting ring (4).

3. The structure of a submersible pump connection assembly according to claim 2, characterized in that: The rectangular slot (10) is opened at one end of the upper outer surface of the connecting arm (9), and the rectangular slot (10) extends to the lower outer surface of the connecting arm (9). A limiting groove (13) is opened in the middle of one side of the rectangular slot (10), and a mounting hole (12) is opened in the middle of the other side of the rectangular slot (10). The sliding groove (14) is opened at the lower part of the mounting hole (12), and the mounting hole (12) extends to the lower outer surface of the connecting arm (9).

4. The structure of a submersible pump connection assembly according to claim 3, characterized in that: The helical spring (15) is located in the mounting hole (12), and the helical spring (15) is fixed between the end of the mounting hole (12) and the outer surface of one end of the support limiting shaft (11). The slider (16) is fixed at one end of the lower outer surface of the support limiting shaft (11). The slider (16) passes through the slide groove (14), and the outer wall of the slider (16) and the slide groove (14) are in sliding fit. The push block (17) is located at the lower part of the connecting arm (9), and the push block (17) is fixed on the lower outer surface of the slider (16).

5. The structure of a submersible pump connection assembly according to claim 4, characterized in that: The outer wall of the support limiting shaft (11) is in sliding fit with the mounting hole (12). One end of the outer surface of the support limiting shaft (11) is elastically connected to one end of the mounting hole (12) through a helical spring (15). The end of the support limiting shaft (11) away from the helical spring (15) is engaged with the limiting groove (13).

6. The structure of a submersible pump connection assembly according to claim 5, characterized in that: The outer wall of the rectangular insert (7) is inserted into the rectangular slot (10), and the outer wall of the support limiting shaft (11) is inserted into the circular through hole (8).

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