A sealing structure at a pump of a water supply and drainage pipeline

Abstract

The utility model relates to sealing structure technical field, specifically disclose a kind of sealing structure at the pump of water supply and drainage pipeline, comprising: water pump body further comprising: second anti-leakage component, second anti-leakage component is set in the side of first connecting pipe and second connecting pipe mutually close, second anti-leakage component is used to seal the connecting position of first connecting pipe and second connecting pipe, and second anti-leakage component includes first connecting component and fixed component. By setting second anti-leakage component at the butt joint of first connecting pipe and second connecting pipe, the butt joint of first connecting pipe and second connecting pipe can be sealed using second anti-leakage component, the second connecting component rotationally connected on fixed component, so that installation angle can be flexibly adjusted according to requirement, and quick butt joint is realized by the clamping cooperation with first connecting component, and the connecting position of first connecting component and second connecting component is circumferentially locked in combination with the clamping component of annular array distribution.

Description

Technical Field

[0001] This utility model relates to the field of sealing structure technology, specifically a sealing structure for a pump in a water supply and drainage pipeline. Background Technology

[0002] The pump sealing structure of water supply and drainage pipelines refers to the key component installed at the connection between the water pump and the inlet and outlet water pipes to prevent leakage of fluid media along the pump shaft or flange connection during operation. This sealing structure is usually located in the shaft seal area between the pump body and the drive motor, or the static seal area at the interface between the pump body and the pipeline. Its main function is to maintain the sealing integrity of the system under complex operating conditions such as continuous pump start-up and shutdown, pressure fluctuations, and media flow, ensuring that water or other fluids flow only directionally inside the pipeline and preventing leakage or air ingress. Common sealing forms include packing seals, mechanical seals, and O-ring or gasket static seals, which achieve the sealing effect through elastic material deformation, end face fitting, or pre-tightening. They play an important role in urban water supply, sewage treatment, and rainwater discharge systems.

[0003] However, many existing sealing structures at pump locations in water supply and drainage pipelines have weak fixed sealing functions, which is particularly evident under conditions of frequent pump start-stop and pressure alternation. As the pump needs to control the flow of water in the pipeline during operation, the connection points are subjected to large dynamic pressure and impact pressure. Traditional sealing structures, due to material aging and insufficient pre-tightening force, cannot maintain an effective seal for a long time, resulting in water seepage from the connection surface between the pump body and the pipeline or the shaft seal. This leakage not only wastes water resources and increases operating costs, but may also cause water accumulation in the pump room, leading to safety hazards such as equipment corrosion and electrical short circuits. Therefore, we propose a sealing structure for pump locations in water supply and drainage pipelines. Utility Model Content

[0004] The purpose of this utility model is to provide a sealing structure for the pump in a water supply and drainage pipeline, so as to solve the problem mentioned in the background art that some existing sealing structures are prone to leakage under the conditions of frequent pump start-stop and pressure alternation due to weak sealing function, resulting in water waste and environmental pollution.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sealing structure at the pump of a water supply and drainage pipeline, comprising: a water pump body;

[0006] It also includes: a first connecting pipe, the output end of the water pump body is fixedly connected to the first connecting pipe;

[0007] The second connecting pipe is located on the side of the first connecting pipe away from the pump body, and the end face of the first connecting pipe near the second connecting pipe is in contact with the end face of the second connecting pipe near the first connecting pipe.

[0008] The second leak-proof component is located on the side of the first connecting pipe and the second connecting pipe that are close to each other. The second leak-proof component is used to seal the connection position of the first connecting pipe and the second connecting pipe. The second leak-proof component includes a first connecting component and a fixing component. The first connecting component is fixedly connected to the second connecting pipe, and the fixing component is fixedly connected to the first connecting pipe. The second connecting component is rotatably connected to the side of the fixing component that is close to the first connecting component. The first connecting component and the second connecting component are snapped together.

[0009] A plurality of clamping components are arranged in a circular array on one side of the first connecting component and the second connecting component that are close to each other. The clamping components are used to fix the positions of the first connecting component and the second connecting component.

[0010] The first leak-proof component is located on the side where the first connecting pipe and the second connecting pipe are close to each other. The first leak-proof component is used to prevent water leaking from the connection position of the first connecting pipe and the second connecting pipe from falling onto the ground.

[0011] The first connecting component includes a second connecting plate that is fixedly connected to the second connecting pipe. A sealing block is fixedly connected to the side of the second connecting plate near the fixing component. The sealing block is made of rubber material. The second connecting component includes a third connecting plate that is rotatably connected to the first connecting pipe. A slot is provided on the side of the third connecting plate near the second connecting plate. The inner cavity of the slot engages with the outer surface of the second connecting plate.

[0012] Among them, a number of sliders are fixedly connected in a ring array on the side of the third connecting plate near the second connecting plate, and a number of first sliding grooves are opened in a ring array on the side of the second connecting plate near the third connecting plate. The outer surface of the slider is slidably connected to the inner cavity of the adjacent first sliding groove.

[0013] The third connecting plate has a ring array with several second connecting holes, and the second connecting plate has a ring array with several first connecting holes.

[0014] The fixing component includes a first connecting block that is fixedly connected to the first connecting pipe. A second sliding groove is provided on the side of the first connecting block near the third connecting plate. The second connecting block is fixedly connected to the side of the third connecting plate near the first connecting block. The inner cavity of the second sliding groove is rotatably connected to the second connecting block.

[0015] The clamping assembly includes a clamping block, a third connecting plate and a second connecting plate that are engaged with the clamping block, a second threaded bolt that is slidably connected to the middle of the clamping block, the second threaded bolt that is slidably connected to the inner cavity of the adjacent first connecting hole and the inner cavity of the second connecting hole, and a second nut that is threadedly connected to one side of the second threaded bolt.

[0016] The first leak-proof component includes a first outer shell and a second outer shell. The first outer shell and the second outer shell are hinged together. The first outer shell is snapped into the first connecting pipe and the second connecting pipe. The second outer shell is snapped into the first connecting pipe and the second connecting pipe. A first connecting plate is fixedly connected to the side of the first outer shell and the second outer shell away from the hinge position. The two first connecting plates are symmetrically and slidably connected to a first threaded bolt. A first nut is threadedly connected to one side of the first threaded bolt. An observation window is opened on one side of the second outer shell.

[0017] This utility model has at least the following beneficial effects:

[0018] By placing the second leak-proof component at the junction of the first and second connecting pipes, the junction can be sealed. The second connecting component, which is rotatably connected to the fixed component, allows for flexible adjustment of the installation angle as needed. Quick docking is achieved through snap-fit ​​with the first connecting component. Combined with the ring-array of clamping components, the connection position of the first and second connecting components is circumferentially locked. This not only improves the stability of the connection and the sealing pre-tightening force, but also facilitates on-site installation, disassembly, and maintenance. It enhances the impact resistance of the connection part under frequent pump start-stop and pressure fluctuations, and avoids loosening and leakage caused by vibration or sudden pressure changes. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present utility model. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the overall structure of the present utility model. Figure 2 ;

[0021] Figure 3 This is a schematic diagram of the second leak-proof component of this utility model;

[0022] Figure 4 This is a schematic diagram of the second connecting component of this utility model;

[0023] Figure 5 This is a schematic diagram of the first connecting component of this utility model;

[0024] Figure 6 This is a schematic diagram of the clamping assembly of this utility model;

[0025] Figure 7 This is a schematic diagram of the first anti-leakage component of this utility model.

[0026] In the diagram: 1. Pump body; 2. First connecting pipe; 3. Second connecting pipe; 4. First leak-proof assembly; 41. First outer shell; 42. Second outer shell; 421. Observation window; 43. First connecting plate; 44. First threaded bolt; 45. First nut; 5. Second leak-proof assembly; 51. First connecting assembly; 511. Second connecting plate; 512. First connecting hole; 513. First slide groove; 514. Sealing block; 52. Fixing assembly; 521. First connecting block; 522. Second slide groove; 53. Second connecting assembly; 531. Third connecting plate; 532. Second connecting hole; 533. Slider; 534. Slot; 535. Second connecting block; 6. Clamping assembly; 61. Clamping block; 62. Second threaded bolt; 63. Second nut. Detailed Implementation

[0027] 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.

[0028] Example 1

[0029] Please see Figures 1 to 7 This utility model provides a technical solution: a sealing structure at the pump of a water supply and drainage pipeline, comprising: a water pump body 1;

[0030] It also includes: a first connecting pipe 2, the output end of the water pump body 1 is fixedly connected to the first connecting pipe 2;

[0031] The second connecting pipe 3 is located on the side of the first connecting pipe 2 away from the water pump body 1, and the end face of the first connecting pipe 2 near the second connecting pipe 3 is in contact with the end face of the second connecting pipe 3 near the first connecting pipe 2.

[0032] The second leak-proof component 5 is disposed on the side of the first connecting pipe 2 and the second connecting pipe 3 that are close to each other. The second leak-proof component 5 is used to seal the connection position of the first connecting pipe 2 and the second connecting pipe 3. The second leak-proof component 5 includes a first connecting component 51 and a fixing component 52. The first connecting component 51 is fixedly connected to the second connecting pipe 3, and the fixing component 52 is fixedly connected to the first connecting pipe 2. The second connecting component 53 is rotatably connected to the side of the fixing component 52 that is close to the first connecting component 51. The first connecting component 51 and the second connecting component 53 are snapped together.

[0033] A plurality of clamping components 6 are arranged in a circular array on one side of the first connecting component 51 and the second connecting component 53 that are close to each other. The clamping components 6 are used to fix the position of the first connecting component 51 and the second connecting component 53.

[0034] The first leak-proof component 4 is located on the side where the first connecting pipe 2 and the second connecting pipe 3 are close to each other. The first leak-proof component 4 is used to prevent water leaking from the connection position of the first connecting pipe 2 and the second connecting pipe 3 from falling onto the ground.

[0035] By placing the second anti-leakage component 5 at the junction of the first connecting pipe 2 and the second connecting pipe 3, the second anti-leakage component 5 can seal the junction of the first connecting pipe 2 and the second connecting pipe 3. The second connecting component 53, which is rotatably connected to the fixed component 52, can flexibly adjust the installation angle according to the needs. It can also achieve quick docking through the snap-fit ​​cooperation with the first connecting component 51. Combined with the clamping components 6 distributed in a ring array, the connection position of the first connecting component 51 and the second connecting component 53 is circumferentially locked. This not only improves the stability of the connection and the sealing pre-tightening force, but also facilitates on-site installation, disassembly and maintenance. It can enhance the impact resistance of the connection part under frequent pump start-stop and pressure fluctuations, and avoid loosening and leakage caused by vibration or pressure change. By setting the first anti-leakage component 4 on the outside of the second anti-leakage component 5, the first anti-leakage component 4 can collect and guide the water that may seep from the junction of the first connecting pipe 2 and the second connecting pipe 3, preventing it from dripping directly to the ground and causing water waste or safety hazards such as water accumulation, corrosion, and electrical short circuits in the pump room.

[0036] The first connecting assembly 51 includes a second connecting plate 511 fixedly connected to the second connecting pipe 3. A sealing block 514, made of rubber, is fixedly connected to the side of the second connecting plate 511 near the fixing assembly 52. ​​The second connecting assembly 53 includes a third connecting plate 531 rotatably connected to the first connecting pipe 2. A slot 534 is formed on the side of the third connecting plate 531 near the second connecting plate 511. The inner cavity of the slot 534 engages with the outer surface of the second connecting plate 511. A plurality of sliders 533 are fixedly connected in a circular array on the side of the third connecting plate 531 near the second connecting plate 511. A plurality of first sliding grooves 513 are formed in a circular array on the side of the second connecting plate 511 near the third connecting plate 531. The outer surface of the sliders 533 is slidably connected to the inner cavity of the adjacent first sliding groove 513. The assembly includes several second connecting holes 532, and several first connecting holes 512 are arranged in a circular array on the second connecting plate 511. The fixing component 52 includes a first connecting block 521 fixedly connected to the first connecting pipe 2. A second sliding groove 522 is provided on the side of the first connecting block 521 near the third connecting plate 531. A second connecting block 535 is fixedly connected on the side of the third connecting plate 531 near the first connecting block 521. The inner cavity of the second sliding groove 522 is rotatably connected to the second connecting block 535. The clamping component 6 includes a clamping block 61. The third connecting plate 531 and the second connecting plate 511 are engaged with the clamping block 61. A second threaded bolt 62 is slidably connected to the middle of the clamping block 61. The second threaded bolt 62 is slidably connected to the inner cavity of the adjacent first connecting hole 512 and the inner cavity of the second connecting hole 532. A second nut 63 is threadedly connected to one side of the second threaded bolt 62.

[0037] When sealing is required at the mating position of the first connecting pipe 2 and the second connecting pipe 3, a force is applied to the second connecting assembly 53, causing the first connecting pipe 2 to move towards one side of the second connecting pipe 3. When the end faces of the first connecting pipe 2 and the second connecting pipe 3 come into contact with each other, the slider 533 will enter the inner cavity of the adjacent first slide groove 513. Then, a force is applied to the third connecting plate 531, causing the second connecting assembly 53 to rotate. When the second connecting assembly 53 rotates, the slider 533 will slide in the inner cavity of the adjacent first slide groove 513, thus moving the second connecting hole 532 to the same central axis position as the adjacent first connecting hole 512. The third connecting plate 531 and the second connecting block 535 are fixedly connected. The side of the second connecting block 535 closest to the first connecting block 521 is located in the inner cavity of the second slide groove 522, and the second connecting block 535 and the inner cavity of the second slide groove 522 are rotatably connected. Thus, when the third connecting plate 531 rotates, it can drive the second connecting block 535 to rotate in the inner cavity of the second slide groove 522. When the third connecting plate 531 and the second connecting plate 511 are mated, it will drive the sealing block 514 to be inserted into the inner cavity of the slot 534. Through the cooperation of the slot 534 and the sealing block 514, a multi-layer seal can be formed at the mating position of the first connecting pipe 2 and the second connecting pipe 3, thereby improving the sealing quality.

[0038] After the second connecting component 53 and the first connecting component 51 are aligned, the positions of the third connecting plate 531 and the second connecting plate 511 are defined by the clamping block 61. Then, the second threaded bolt 62 is passed through the inner cavity of the hole opened in the clamping block 61, the inner cavity of the first connecting hole 512, and the inner cavity of the second connecting hole 532 in sequence. Then, the positions of the third connecting plate 531 and the second connecting plate 511 are fixed by the cooperation of the second nut 63 and the second threaded bolt 62, thereby improving the stability of the connection.

[0039] Example 2

[0040] The first leak-proof component 4 includes a first outer shell 41 and a second outer shell 42. The first outer shell 41 and the second outer shell 42 are hinged together. The first outer shell 41 is snapped into the first connecting pipe 2 and the second connecting pipe 3. The second outer shell 42 is snapped into the first connecting pipe 2 and the second connecting pipe 3. A first connecting plate 43 is fixedly connected to the side of the first outer shell 41 and the second outer shell 42 away from the hinge position. The two first connecting plates 43 are symmetrically and slidably connected to a first threaded bolt 44. A first nut 45 is threadedly connected to one side of the first threaded bolt 44. An observation window 421 is opened on one side of the second outer shell 42.

[0041] After sealing the connection points of the first connecting pipe 2 and the second connecting pipe 3, the first outer shell 41 and the second outer shell 42 are closed. The cooperation of the first outer shell 41 and the second outer shell 42 is used to wrap the second anti-leakage component 5 and the connection points of the first connecting pipe 2 and the second connecting pipe 3. Then, the first threaded bolt 44 passes through the cavity of the hole opened on the first connecting plate 43. The cooperation of the first threaded bolt 44 and the first nut 45 is used to lock the two first connecting plates 43, improving the sealing performance of the entire first anti-leakage component 4. The observation window 421 allows observation of the situation inside the cavity of the second outer shell 42. The sealing position of the first connecting pipe 2 and the second connecting pipe 3 can be checked without unfolding the first anti-leakage component 4, which improves the inspection efficiency.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" 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 process, method, article, or apparatus.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sealing structure at a pump in a water supply and drainage pipeline, comprising: Water pump body; Its characteristic is that it further includes: a first connecting pipe, wherein the output end of the water pump body is fixedly connected to the first connecting pipe; The second connecting pipe is disposed on the side of the first connecting pipe away from the pump body, and the end face of the first connecting pipe near the second connecting pipe is in contact with the end face of the second connecting pipe near the first connecting pipe. The second leak-proof component is disposed on the side of the first connecting pipe and the second connecting pipe that are close to each other. The second leak-proof component is used to seal the connection position of the first connecting pipe and the second connecting pipe. The second leak-proof component includes a first connecting component and a fixing component. The first connecting component is fixedly connected to the second connecting pipe, and the fixing component is fixedly connected to the first connecting pipe. The second connecting component is rotatably connected to the side of the fixing component that is close to the first connecting component. The first connecting component and the second connecting component are snapped together. A plurality of clamping components are arranged in a circular array on one side of the first connecting component and the second connecting component that are close to each other. The clamping components are used to fix the positions of the first connecting component and the second connecting component. The first leak-proof component is disposed on the side where the first connecting pipe and the second connecting pipe are close to each other, and is used to prevent water leaking from the connection point of the first connecting pipe and the second connecting pipe from falling onto the ground.

2. The sealing structure at the pump of the water supply and drainage pipeline according to claim 1, characterized in that: The first connecting assembly includes a second connecting plate fixedly connected to the second connecting pipe. A sealing block is fixedly connected to the side of the second connecting plate near the fixing assembly. The sealing block is made of rubber material. The second connecting assembly includes a third connecting plate rotatably connected to the first connecting pipe. A slot is provided on the side of the third connecting plate near the second connecting plate. The inner cavity of the slot engages with the outer surface of the second connecting plate.

3. The sealing structure at the pump of the water supply and drainage pipeline according to claim 2, characterized in that: The third connecting plate has several sliders fixedly connected in a ring array on the side near the second connecting plate. The second connecting plate has several first sliding grooves in a ring array on the side near the third connecting plate. The outer surface of the slider is slidably connected to the inner cavity of the adjacent first sliding groove.

4. The sealing structure at the pump of the water supply and drainage pipeline according to claim 3, characterized in that: The third connecting plate is arranged in a ring array with a plurality of second connecting holes, and the second connecting plate is arranged in a ring array with a plurality of first connecting holes.

5. The sealing structure at the pump of the water supply and drainage pipeline according to claim 3, characterized in that: The fixing component includes a first connecting block fixedly connected to the first connecting pipe, a second sliding groove is provided on the side of the first connecting block near the third connecting plate, and a second connecting block is fixedly connected on the side of the third connecting plate near the first connecting block, and the inner cavity of the second sliding groove is rotatably connected to the second connecting block.

6. The sealing structure at the pump of the water supply and drainage pipeline according to claim 5, characterized in that: The clamping assembly includes a clamping block, and the third connecting plate and the second connecting plate are engaged with the clamping block. A second threaded bolt is slidably connected to the middle of the clamping block. The second threaded bolt is slidably connected to the inner cavity of the adjacent first connecting hole and the inner cavity of the second connecting hole. A second nut is threadedly connected to one side of the second threaded bolt.

7. The sealing structure at the pump of the water supply and drainage pipeline according to claim 1, characterized in that: The first leak-proof component includes a first housing and a second housing. The first housing and the second housing are hinged together. The first housing is snapped into a first connecting pipe and a second connecting pipe. The second housing is snapped into a first connecting pipe and a second connecting pipe. A first connecting plate is fixedly connected to the side of the first housing and the second housing away from the hinge position. The two first connecting plates are symmetrically slidably connected with a first threaded bolt. A first nut is threadedly connected to one side of each first threaded bolt. An observation window is provided on one side of the second housing.

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