Centrifugal pump with heat preservation and anti-freezing structure

Abstract

The utility model relates to the technical field of centrifugal pumps, and discloses a centrifugal pump with a heat preservation anti-freezing structure. Comprising a pump body and a waterproof cover, the waterproof cover is arranged on the outer side of the pump body, a base is arranged at the bottom of the waterproof cover, heat preservation cotton is fixedly connected to the inner wall of the waterproof cover, two through holes are formed in the inner wall of the waterproof cover, and sealing rings are arranged on the inner walls of the through holes; accumulated snow on the top of the waterproof cover can be blown off by starting the snow removing assembly, the accumulated snow is prevented from freezing, the anti-freezing effect of the pump body is improved, when the pump body generates heat during operation, the sealing piece on the waterproof cover is opened at the moment, the heat generated by the pump body is discharged from the ventilation hole, and the anti-freezing effect of the pump body is improved. And when the pump body stops running, the sealing piece is closed, the waste heat in the waterproof cover can be prevented from rapidly volatilizing through the heat preservation cotton, and therefore the heat preservation purpose is achieved.

Description

Technical Field

[0001] This utility model relates to the field of centrifugal pump technology, specifically a centrifugal pump with a heat preservation and antifreeze structure. Background Technology

[0002] Centrifugal pumps are commonly used fluid transport equipment. Their main function is to convert mechanical energy into fluid energy, thereby realizing the transport of fluids. Centrifugal pumps have a wide range of applications in various fields, such as: domestic water supply, used to transport tap water and provide domestic water; and industrial production, used to transport various liquid raw materials and products, such as in the petroleum, chemical and mining industries.

[0003] According to the utility model patent CN221591246U, a self-priming centrifugal pump with good antifreeze effect, which relates to the field of centrifugal pump antifreeze technology, its beneficial effects are as follows: by setting an antifreeze device, the insulation box and the semi-circular cover are closely attached to the outer wall of the pump body. A sponge board is installed in the gap between the heating tube and the insulation box. The sponge board and the waterproof cover can block cold air. The waterproof cover prevents rainwater from falling onto the surface of the insulation box through the cover plate, thereby improving the antifreeze effect of the insulation box. When the heating tube is turned on, the pump body is heated to prevent the pump body from freezing. At the same time, it can effectively thaw the frozen inside of the pump body, ensuring the normal operation of the centrifugal pump.

[0004] While the above techniques can insulate centrifugal pumps, they still have some shortcomings:

[0005] 1. Snow easily accumulates on the top of the waterproof cover in winter and is difficult to clean, which can easily lead to icing and reduce the antifreeze effect of the pump body.

[0006] Second: The waterproof cover is a closed design, which makes it difficult for the large amount of heat generated by the centrifugal pump during operation to dissipate from the waterproof cover, causing the centrifugal pump to easily malfunction due to overheating. Utility Model Content

[0007] The purpose of this invention is to provide a centrifugal pump with a heat preservation and antifreeze structure to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a centrifugal pump with a heat preservation and antifreeze structure, comprising a pump body and a waterproof cover, wherein a waterproof cover is provided on the outer side of the pump body, a base is provided at the bottom of the waterproof cover, heat preservation cotton is fixedly connected to the inner wall of the waterproof cover, and two through holes are opened in the inner wall of the waterproof cover, and a sealing ring is provided on the inner wall of the through holes;

[0009] A snow removal assembly is disposed on the top of the waterproof cover. Ventilation holes are provided on both sides of the waterproof cover. A dustproof net is fixedly connected to the inner wall of the ventilation hole. A sealing element is provided on the inner wall of the ventilation hole. The snow removal assembly includes a fan disposed on the top of the inner cavity of the waterproof cover.

[0010] Preferably, the snow removal assembly further includes a diversion pipe connected to the blower outlet, both ends of the diversion pipe are connected to connecting pipes, and a plurality of air blowing heads are distributed on one side of the connecting pipe.

[0011] Preferably, the sealing element includes a sealing plate rotatably connected to one side of the waterproof cover, an arc-shaped locking block slidably connected to the inner wall of the sealing plate, a first spring fixedly connected to one side of the arc-shaped locking block, an arc-shaped locking groove opened on the inner wall of the ventilation hole, and a suction cup provided on one side of the sealing plate.

[0012] Preferably, a rubber plate is fixedly connected to the bottom of the pump body by screws, and the bottom of the rubber plate is fixedly connected to the top of the base.

[0013] Preferably, the inner wall of the base is fixedly connected with a positioning rod, and there are two positioning rods. Each of the two positioning rods is slidably connected with a connecting block on its outer side, and there are four connecting blocks in pairs.

[0014] Preferably, a second spring is fixedly connected between a group of the connecting blocks, a limit block is fixedly connected to the top of the connecting blocks, and a limit groove is formed on the inner wall of the waterproof cover.

[0015] Preferably, a lever is fixedly connected to one side of the connecting block.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This invention can blow away the snow on the top of the waterproof cover by activating the snow removal component, preventing the snow from freezing and improving the antifreeze effect of the pump body. When the pump body is running, it will generate heat. At this time, the seal on the waterproof cover is opened to allow the heat generated by the pump body to be discharged through the ventilation hole, thereby achieving the purpose of heat dissipation. When the pump body stops running, the seal is closed, and the insulation cotton can prevent the residual heat inside the waterproof cover from evaporating quickly, thereby achieving the purpose of heat preservation. Attached Figure Description

[0018] Figure 1 A schematic diagram of a preferred embodiment of the centrifugal pump with heat preservation and antifreeze structure provided by this utility model;

[0019] Figure 2 This is a partial cross-sectional structural schematic diagram provided for this utility model;

[0020] Figure 3This is a partial cross-sectional structural schematic diagram provided for this utility model;

[0021] Figure 4 for Figure 2 Enlarged structural diagram at point A;

[0022] Figure 5 for Figure 2 Enlarged schematic diagram of the structure at point B.

[0023] In the diagram: 1. Pump body; 2. Waterproof cover; 3. Base; 4. Insulation cotton; 5. Through hole; 6. Sealing ring; 7. Snow removal assembly; 701. Fan; 702. Diverter pipe; 703. Connecting pipe; 704. Air blower head; 8. Ventilation hole; 9. Dustproof net; 10. Seal; 1001. Sealing plate; 1002. Arc-shaped locking block; 1003. First spring; 1004. Arc-shaped locking groove; 11. Rubber plate; 12. Positioning rod; 13. Connecting block; 14. Second spring; 15. Limiting block; 16. Limiting groove; 17. Push block. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-5As shown, a centrifugal pump with a heat-insulating and anti-freeze structure includes a pump body 1 and a waterproof cover 2. The waterproof cover 2 is provided on the outer side of the pump body 1, and a base 3 is provided at the bottom of the waterproof cover 2. Insulation cotton 4 is fixedly connected to the inner wall of the waterproof cover 2. The waterproof cover 2 and the insulation cotton 4 can insulate and prevent freezing of the pump body 1. Two through holes 5 are opened on the inner wall of the waterproof cover 2. The through holes 5 are designed to accommodate the pump body 1's water intake end and drainage end. A sealing ring 6 is provided on the inner wall of the through holes 5. A snow removal assembly 7 is provided on the top of the waterproof cover 2. Ventilation holes 8 are provided on both sides of the waterproof cover 2. The two sets of ventilation holes 8 are symmetrically arranged. When the pump body 1 is running, the sealing part 10 is opened, and the water is released through the ventilation holes 8. The vent 8 allows air to circulate inside the waterproof cover 2, thereby carrying away the heat generated by the pump body 1 during operation and achieving heat dissipation. A dustproof net 9 is fixedly connected to the inner wall of the vent 8, which can prevent dust from entering the waterproof cover 2. A sealing element 10 is provided on the inner wall of the vent 8. The snow removal assembly 7 includes a fan 701 located at the top of the inner cavity of the waterproof cover 2. The fan 701 is fixedly connected to the top of the inner cavity of the waterproof cover 2 through a connecting plate. The snow removal assembly 7 also includes a diversion pipe 702 connected to the air outlet of the fan 701. Both ends of the diversion pipe 702 are connected to connecting pipes 703. Several air blowing heads 704 are distributed on one side of the connecting pipe 703.

[0026] Start the blower 701 to send air into the distribution pipe 702, so that the gas enters the distribution pipe 702 and is blown out from multiple air blowers 704, thereby blowing off the snow on the top of the waterproof cover 2, preventing the snow on the top of the waterproof cover 2 from freezing, and improving the antifreeze effect of the pump body 1.

[0027] The sealing element 10 includes a sealing plate 1001 rotatably connected to one side of the waterproof cover 2. An arc-shaped locking block 1002 is slidably connected to the inner wall of the sealing plate 1001. A first spring 1003 is fixedly connected to one side of the arc-shaped locking block 1002. An arc-shaped groove 1004 is formed on the inner wall of the ventilation hole 8. A suction cup is provided on one side of the sealing plate 1001. When the pump body 1 is running, the sealing plate 1001 is opened, causing the arc-shaped locking block 1002 to disengage from the arc-shaped groove 1004, and the sealing plate 1001 is then adsorbed onto the waterproof cover 2 by the suction cup. On one side, it facilitates heat dissipation for the pump body 1. When the pump body 1 is not in use, the sealing plate 1001 is moved in the reverse direction and inserted into the ventilation hole 8. At this time, the arc-shaped locking block 1002 is squeezed back into the sealing plate 1001 by the inner wall of the ventilation hole 8, thereby compressing the first spring 1003. When the sealing plate 1001 and the ventilation hole 8 are at the same level, the arc-shaped locking block 1002 can be automatically reset and inserted into the arc-shaped locking groove 1004 by the rebound force of the first spring 1003, thereby sealing the ventilation hole 8 with the sealing plate 1001.

[0028] A rubber plate 11 is fixedly connected to the bottom of the pump body 1 by screws, and the bottom of the rubber plate 11 is fixedly connected to the top of the base 3; the rubber plate 11 facilitates the cushioning of the pump body 1.

[0029] Two positioning rods 12 are fixedly connected to the inner wall of the base 3. Each positioning rod 12 is slidably connected to a connecting block 13 on its outer side. There are four connecting blocks 13, which are arranged in pairs. A second spring 14 is fixedly connected between each pair of connecting blocks 13. A limit block 15 is fixedly connected to the top of the connecting block 13. A limit groove 16 is opened on the inner wall of the waterproof cover 2. A lever 17 is fixedly connected to one side of the connecting block 13. Moving the lever 17 causes the two connecting blocks 13 to move along the positioning rods 12 and pull the limit block 15 closer to each other, thereby compressing the second spring 14. Then, the waterproof cover 2 is moved and placed on top of the base 3. At this time, the limit block 15 is located in the inner cavity of the waterproof cover 2. Then, the lever 17 is released. The rebound force of the second spring 14 causes the limit block 15 to automatically reset and lock into the limit groove 16, thereby fixing the waterproof cover 2 on the base 3. The operation is convenient.

[0030] Working principle: Activating the snow removal component 7 can blow away the snow on the top of the waterproof cover 2, preventing the snow from freezing and improving the antifreeze effect on the pump body 1. When the pump body 1 is running, it will generate heat. At this time, the seal 10 is opened, allowing the heat generated by the pump body 1 to be discharged to the outside of the waterproof cover 2 through the ventilation hole 8, thereby achieving the purpose of heat dissipation. When the pump body 1 stops running, the seal 10 is closed. The insulation cotton 4 can prevent the residual heat inside the waterproof cover 2 from evaporating quickly, thereby achieving the purpose of heat preservation.

[0031] 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 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.

[0032] 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 centrifugal pump with a heat-insulating and anti-freezing structure, comprising a pump body (1), characterized in that, Also includes: A waterproof cover (2) is provided on the outside of the pump body (1). A base (3) is provided at the bottom of the waterproof cover (2). Insulation cotton (4) is fixedly connected to the inner wall of the waterproof cover (2). Two through holes (5) are opened on the inner wall of the waterproof cover (2). A sealing ring (6) is provided on the inner wall of the through hole (5). A snow removal assembly (7) is disposed on the top of the waterproof cover (2). Ventilation holes (8) are provided on both sides of the waterproof cover (2). A dustproof net (9) is fixedly connected to the inner wall of the ventilation hole (8). A sealing element (10) is provided on the inner wall of the ventilation hole (8). The snow removal assembly (7) includes a fan (701) disposed on the top of the inner cavity of the waterproof cover (2).

2. A centrifugal pump with a heat-insulating and anti-freezing structure according to claim 1, characterized in that: The snow removal assembly (7) also includes a split pipe (702) connected to the air outlet of the blower (701), both ends of the split pipe (702) are connected to connecting pipes (703), and a plurality of air blowing heads (704) are distributed on one side of the connecting pipe (703).

3. A centrifugal pump with a heat-insulating and anti-freezing structure according to claim 1, characterized in that: The sealing element (10) includes a sealing plate (1001) rotatably connected to one side of the waterproof cover (2). An arc-shaped locking block (1002) is slidably connected to the inner wall of the sealing plate (1001). A first spring (1003) is fixedly connected to one side of the arc-shaped locking block (1002). An arc-shaped slot (1004) is opened on the inner wall of the ventilation hole (8). A suction cup is provided on one side of the sealing plate (1001).

4. A centrifugal pump with a heat-insulating and anti-freezing structure according to claim 1, characterized in that: The bottom of the pump body (1) is fixedly connected to a rubber plate (11) by screws, and the bottom of the rubber plate (11) is fixedly connected to the top of the base (3).

5. A centrifugal pump with a heat-insulating and anti-freezing structure according to claim 1, characterized in that: The inner wall of the base (3) is fixedly connected with a positioning rod (12). There are two positioning rods (12). The outer sides of the two positioning rods (12) are slidably connected with connecting blocks (13). There are four connecting blocks (13) and they are in pairs.

6. A centrifugal pump with a heat-insulating and anti-freezing structure according to claim 5, characterized in that: A second spring (14) is fixedly connected between a group of the connecting blocks (13), a limiting block (15) is fixedly connected to the top of the connecting blocks (13), and a limiting groove (16) is opened on the inner wall of the waterproof cover (2).

7. A centrifugal pump with a heat-insulating and anti-freezing structure according to claim 5, characterized in that: A lever (17) is fixedly connected to one side of the connecting block (13).

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