A water pump anti-water hammer device

Abstract

The utility model discloses a water pump anti-water hammer device, including a water pump, a water inlet pipe is arranged on one side of the water pump, a water outlet pipe is arranged on the side of the water pump away from the water inlet pipe, a protection box is arranged on one side of the water pump, one side of the protection box is connected to the water inlet pipe through an input pipe, and the side of the protection box away from the input pipe is connected to the water outlet pipe through an output pipe. Beneficial effect: by setting the protection box, when the water pump stops working, the liquid at the water inlet end squeezes the cover plate due to the high pressure and flows to the water outlet end through the protection box, thereby preventing the water pump from being damaged by water hammer formed at the water inlet end due to the water pump stopping working, thereby improving its safety; when the liquid flows into the connecting pipe, it squeezes the cover plate and also squeezes the inner wall of the connecting pipe; by setting the connecting pipe inner wall protection component, when the liquid squeezes the cover plate, the water outlet hole on the outer wall of the connecting pipe will be opened, thereby accelerating the liquid to flow out of the connecting pipe, reducing the squeezing of the inner wall, preventing the connecting pipe from being damaged, and increasing the service life of the protection box.

Description

Technical Field

[0001] The utility model relates to the technical field of water pump anti-water hammer, in particular to a water pump anti-water hammer device. Background Art

[0002] In the circulating water or water supply system, when the valve or water pump is suddenly closed or stops running, this change will produce a destructive water hammer effect. Usually, buffers, pressure reducing valves, water hammer eliminators, etc. are installed on the pipeline to reduce or eliminate the impact of water hammer; but in slightly larger circulation systems, the matching water hammer prevention equipment is often required, which is large in size and expensive. At the same time, it cannot prevent the sudden change in pressure at the inlet and outlet of the water pump when the water pump stops suddenly, that is, the pressure at the water inlet of the water pump increases, and the water outlet is under negative pressure.

[0003] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0004] In view of the problems in the related technology, the utility model proposes a water pump anti-water hammer device to overcome the above technical problems existing in the existing related technology.

[0005] To this end, the specific technical solutions adopted by the utility model are as follows:

[0006] 14. The water pump as claimed in claim 13, wherein the water pump has a water inlet pipe on one side thereof, a water outlet pipe on the side of the water pump away from the water inlet pipe, a protection box on the side of the water pump, one side of the protection box being connected to the water inlet pipe through an input pipe, and the side of the protection box away from the input pipe being connected to the water outlet pipe through an output pipe, a connecting pipe communicating with the input pipe is provided in the protection box, a fixing frame is provided in the protection box, a guide plate is provided on the side of the fixing frame close to the connecting pipe, the guide plate is connected to the fixing frame through a fixing rod, a guide rod 1 is provided on one side of the guide plate, a cover plate is provided on the side of the guide rod 1 close to the connecting pipe, a side of the guide rod 1 away from the cover plate passes through the guide plate and is connected to a conical block, a supporting spring 1 is provided between the cover plate and the guide plate and on the outer wall of the guide rod 1, and a connecting pipe inner wall protection component is provided in the fixing frame.

[0007] Preferably, the fixing frame is connected to the inner wall of the protection box via a connecting block.

[0008] Preferably, the guide plate is provided with a guide hole 1 matching the guide rod 1, and the cover plate is connected to the guide plate via the support spring 1.

[0009] Preferably, a plug-in groove matching the connecting pipe is provided on one side of the cover plate, and a sealing gasket is provided in the plug-in groove.

[0010] Preferably, the connecting pipe inner wall protection component includes a plurality of pressure platforms distributed in a circular array with the conical block as the axis in the fixed frame, the top of the pressure platform is connected to the fixed frame through an elastic component, the bottom of the pressure platform is provided with an inclined sliding surface matching the conical block, a mounting plate is provided on one side of the pressure platform, a plurality of evenly distributed blocking blocks are provided at the bottom of the mounting plate, and the outer wall of the connecting pipe is provided with a water outlet hole matching the blocking block.

[0011] Preferably, the mounting plate and the pressing platform are an integrally formed structure.

[0012] Preferably, the elastic component includes a travel groove in the press platform, a sliding plate matching the travel groove is provided in the travel groove, two guide rods extending out of the travel groove and connected to the fixed frame are provided at the top of the sliding plate, two support springs are provided outside the travel groove and on the outer wall of the two guide rods, and the press platform is connected to the fixed frame via the two support springs.

[0013] Preferably, the press platform is provided with a second guide hole matching the second guide rod, the travel groove is a rectangular groove, and the slide plate is a rectangular block.

[0014] The beneficial effects of the utility model are as follows: by arranging a protection box, when the water pump stops operating, the liquid at the water inlet end will squeeze the cover plate due to the high pressure and flow to the water outlet end through the protection box, thereby preventing the water pump from being damaged by water hammer formed at the water inlet end due to the water pump stopping operating, thereby improving its safety; when the liquid flows into the connecting pipe, it will squeeze the cover plate and the inner wall of the connecting pipe at the same time; by arranging a connecting pipe inner wall protection component, when the liquid squeezes the cover plate, the water outlet hole on the outer wall of the connecting pipe will be opened, thereby accelerating the liquid to flow out of the connecting pipe, reducing the squeezing of the inner wall, preventing the connecting pipe from being damaged and increasing the service life of the protection box. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of a water pump anti-water hammer device according to an embodiment of the utility model;

[0017] Figure 2 It is a top view of a water pump anti-water hammer device according to an embodiment of the utility model;

[0018] Figure 3It is a schematic diagram of the structure of a protection box in a water pump anti-water hammer device according to an embodiment of the utility model;

[0019] Figure 4 It is a schematic diagram of the internal structure of a protection box in a water pump anti-water hammer device according to an embodiment of the utility model;

[0020] Figure 5 It is a schematic diagram of the structure of the interior of a protection box in a water pump anti-water hammer device according to an embodiment of the utility model from another angle;

[0021] Figure 6 It is a main cross-sectional view of a protection box in a water pump anti-water hammer device according to an embodiment of the utility model;

[0022] Figure 7 yes Figure 6 A local enlarged schematic diagram of the middle A;

[0023] Figure 8 yes Figure 6 A local enlarged schematic diagram of point B in the middle.

[0024] In the figure:

[0025] 1. Water pump; 2. Water inlet pipe; 3. Water outlet pipe; 4. Input pipe; 5. Output pipe; 6. Connecting pipe; 7. Fixed frame; 8. Guide plate; 9. Fixed rod; 10. Guide rod one; 11. Cover plate; 12. Conical block; 13. Support spring one; 14. Connecting block; 15. Plug-in slot; 16. Protective box; 17. Sealing pad; 18. Press table; 19. Inclined sliding surface; 20. Mounting plate; 21. Sealing block; 22. Water outlet hole; 23. Travel slot; 24. Slide plate; 25. Guide rod two; 26. Support spring two. DETAILED DESCRIPTION

[0026] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0027] According to an embodiment of the utility model, a water pump water hammer protection device is provided.

[0028] Embodiment 1;

[0029] like Figure 1-8As shown, a water pump anti-water hammer device according to an embodiment of the utility model comprises a water pump 1, a water inlet pipe 2 is provided on one side of the water pump 1, a water outlet pipe 3 is provided on the side of the water pump 1 away from the water inlet pipe 2, a protection box 16 is provided on one side of the water pump 1, one side of the protection box 16 is connected to the water inlet pipe 2 through an input pipe 4, and the side of the protection box 16 away from the input pipe 4 is connected to the water outlet pipe 3 through an output pipe 5, a connecting pipe 6 communicating with the input pipe 4 is provided in the protection box 16, a fixing frame 7 is provided in the protection box 16, a guide plate 8 is provided on the side of the fixing frame 7 close to the connecting pipe 6, the guide plate 8 is connected to the fixing frame 7 through a fixing rod 9, a guide rod 10 is provided on one side of the guide plate 8, a cover plate 11 is provided on the side of the guide rod 10 close to the connecting pipe 6, a side of the guide rod 10 away from the cover plate 11 penetrates the guide plate 8 and is connected to a conical block 12, a support spring 13 is provided between the cover plate 11 and the guide plate 8 and on the outer wall of the guide rod 10, and a connecting pipe inner wall protection component is provided in the fixing frame 7.

[0030] Embodiment 2:

[0031] like Figure 1-8 As shown, a water pump anti-water hammer device according to an embodiment of the utility model comprises a water pump 1, a water inlet pipe 2 is provided on one side of the water pump 1, a water outlet pipe 3 is provided on the side of the water pump 1 away from the water inlet pipe 2, a protection box 16 is provided on one side of the water pump 1, one side of the protection box 16 is connected to the water inlet pipe 2 through an input pipe 4, and the side of the protection box 16 away from the input pipe 4 is connected to the water outlet pipe 3 through an output pipe 5, a connecting pipe 6 communicating with the input pipe 4 is provided in the protection box 16, a fixing frame 7 is provided in the protection box 16, a guide plate 8 is provided on the side of the fixing frame 7 close to the connecting pipe 6, the guide plate 8 is connected to the fixing frame 7 through a fixing rod 9, a guide rod 10 is provided on one side of the guide plate 8, a cover plate 11 is provided on the side of the guide rod 10 close to the connecting pipe 6, a side of the guide rod 10 away from the cover plate 11 penetrates the guide plate 8 and is connected to a conical block 12, a support spring 13 is provided between the cover plate 11 and the guide plate 8 and on the outer wall of the guide rod 10, and a connecting pipe inner wall protection component is provided in the fixing frame 7. The fixing frame 7 is connected to the inner wall of the protection box 16 through the connecting block 14. A guide hole 1 that matches the guide rod 10 is provided on the guide plate 8, and the cover plate 11 is connected to the guide plate 8 through the support spring 13. A plug-in slot 15 that matches the connecting pipe 6 is provided on one side of the cover plate 11, and a sealing gasket 17 is provided in the plug-in slot 15. When the water pump stops running, the liquid in the water inlet pipe 2 flows to the connecting pipe 6 in the protection box 16 through the input pipe 4. At this time, the liquid pressure is too large to squeeze the cover plate 11, and the cover plate 11 begins to compress the support spring 13 under the squeeze. At this time, the port on one side of the connecting pipe 6 is opened, and the water flows to the protection box 16 and then flows to the water outlet pipe 3 through the output pipe 5. By setting the protection box, when the water pump stops running, the liquid at the water inlet end squeezes the cover plate due to the high pressure and flows to the water outlet end through the protection box, which prevents the water pump from being damaged by water hammer at the water inlet end due to the water pump stopping, thereby improving its safety.

[0032] Embodiment three;

[0033] like Figure 1-8 As shown, a water pump anti-water hammer device according to an embodiment of the utility model comprises a water pump 1, a water inlet pipe 2 is provided on one side of the water pump 1, a water outlet pipe 3 is provided on the side of the water pump 1 away from the water inlet pipe 2, a protection box 16 is provided on one side of the water pump 1, one side of the protection box 16 is connected to the water inlet pipe 2 through an input pipe 4, and the side of the protection box 16 away from the input pipe 4 is connected to the water outlet pipe 3 through an output pipe 5, a connecting pipe 6 communicating with the input pipe 4 is provided in the protection box 16, a fixing frame 7 is provided in the protection box 16, a guide plate 8 is provided on the side of the fixing frame 7 close to the connecting pipe 6, the guide plate 8 is connected to the fixing frame 7 through a fixing rod 9, a guide rod 10 is provided on one side of the guide plate 8, a cover plate 11 is provided on the side of the guide rod 10 close to the connecting pipe 6, a side of the guide rod 10 away from the cover plate 11 penetrates the guide plate 8 and is connected to a conical block 12, a support spring 13 is provided between the cover plate 11 and the guide plate 8 and on the outer wall of the guide rod 10, and a connecting pipe inner wall protection component is provided in the fixing frame 7. The connecting pipe inner wall protection component includes a plurality of press plates 18 distributed in a circular array with the conical block 12 as the axis in the fixed frame 7, the top of the press plate 18 is connected to the fixed frame 7 through an elastic component, the bottom of the press plate 18 is provided with an inclined sliding surface 19 matching the conical block 12, a mounting plate 20 is provided on one side of the press plate 18, a plurality of evenly distributed blocking blocks 21 are provided at the bottom of the mounting plate 20, and a water outlet 22 matching the blocking blocks 21 is provided on the outer wall of the connecting pipe 6. The mounting plate 20 and the press plate 18 are an integrally formed structure. The elastic component includes a travel groove 23 provided in the press plate 18, a slide plate 24 matching therewith is provided in the travel groove 23, a guide rod 25 extending outside the travel groove 23 and connected to the fixed frame 7 is provided at the top of the slide plate 24, a support spring 26 is provided outside the travel groove 23 and on the outer wall of the guide rod 25, and the press plate 18 is connected to the fixed frame 7 through the support spring 26. The press table 18 is provided with a guide hole 2 that matches the guide rod 25, the travel groove 23 is a rectangular groove, and the slide plate 24 is a rectangular block. When water enters the connecting pipe 6, the cover plate 11 is squeezed, so that the support spring 13 is compressed, the guide rod 10 moves to one side, and the guide rod 10 drives the conical block 12 to move and squeeze the press table 18, and the press table 18 begins to compress the support spring 26. At the same time, the press table 18 drives the mounting plate 20 to move to the outside of the connecting pipe 6, and the mounting plate 20 drives the blocking block 21 to separate from the water outlet 22 on the connecting pipe 6. At this time, the liquid in the connecting pipe 6 flows out through the water outlet 22. When the liquid flows into the connecting pipe, it will squeeze the cover plate and the inner wall of the connecting pipe. By setting the inner wall protection component of the connecting pipe, when the liquid squeezes the cover plate, the water outlet hole on the outer wall of the connecting pipe will be opened, accelerating the liquid to flow out of the connecting pipe, reducing the squeezing of the inner wall, preventing the connecting pipe from being damaged, and improving the service life of the protection box.

[0034] In actual application, when the water pump stops running, the liquid in the water inlet pipe 2 flows through the input pipe 4 to the connecting pipe 6 in the protection box 16. At this time, the liquid pressure is too large to squeeze the cover plate 11, and the cover plate 11 begins to compress the support spring 13 under the squeeze. At this time, the port on one side of the connecting pipe 6 is opened, and the water flows to the protection box 16 and then flows to the outlet pipe 3 through the output pipe 5. By setting the protection box, when the water pump stops running, the liquid at the water inlet end squeezes the cover plate due to the high pressure and flows to the water outlet end through the protection box, thereby preventing the water pump from being damaged by water hammer at the water inlet end due to the water pump stopping, thereby improving its safety; when water enters the connecting pipe 6, it squeezes the cover plate 11, so that the support spring 13 is compressed, and the guide rod 10 moves to a The connecting pipe 6 is moved sideways, and the guide rod 10 drives the conical block 12 to move and squeeze the pressing platform 18. The pressing platform 18 starts to compress the supporting spring 26. At the same time, the pressing platform 18 drives the mounting plate 20 to move toward the outside of the connecting pipe 6. The mounting plate 20 drives the blocking block 21 to separate from the water outlet 22 on the connecting pipe 6. At this time, the liquid in the connecting pipe 6 flows out through the water outlet 22. When the liquid flows into the connecting pipe, it will squeeze the cover plate and the inner wall of the connecting pipe. By setting a connecting pipe inner wall protection component, when the liquid squeezes the cover plate, the water outlet hole on the outer wall of the connecting pipe will be opened, thereby accelerating the liquid to flow out of the connecting pipe, reducing the squeezing of the inner wall, preventing the connecting pipe from being damaged, and increasing the service life of the protection box.

[0035] In summary, with the aid of the above-mentioned technical scheme of the utility model, by setting a protection box, when the water pump stops operating, the liquid at the water inlet end will squeeze the cover plate due to the high pressure and flow to the water outlet through the protection box, thereby preventing the water pump from being damaged by water hammer formed at the water inlet end due to the water pump stopping operating, thereby improving its safety; when the liquid flows into the connecting pipe, it will squeeze the cover plate and the inner wall of the connecting pipe; by setting a connecting pipe inner wall protection component, when the liquid squeezes the cover plate, the water outlet hole on the outer wall of the connecting pipe will be opened, thereby accelerating the liquid to flow out of the connecting pipe, reducing the squeezing of the inner wall, preventing the connecting pipe from being damaged, and increasing the service life of the protection box.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A water pump anti-water hammer device, comprising a water pump (1), characterized in that: A water inlet pipe (2) is provided on one side of the water pump (1), a water outlet pipe (3) is provided on the side of the water pump (1) away from the water inlet pipe (2), a protection box (16) is provided on one side of the water pump (1), one side of the protection box (16) is connected to the water inlet pipe (2) via an input pipe (4), a side of the protection box (16) away from the input pipe (4) is connected to the water outlet pipe (3) via an output pipe (5), a connecting pipe (6) communicating with the input pipe (4) is provided in the protection box (16), a fixing frame (7) is provided in the protection box (16), and the fixing frame (7) is close to the connecting pipe (6). A guide plate (8) is provided on one side of the guide plate (8), the guide plate (8) is connected to the fixed frame (7) through a fixing rod (9), a guide rod (10) is provided on one side of the guide plate (8), a cover plate (11) is provided on the side of the guide rod (10) close to the connecting pipe (6), the side of the guide rod (10) away from the cover plate (11) passes through the guide plate (8) and is connected to a conical block (12), a support spring (13) is provided between the cover plate (11) and the guide plate (8) and on the outer wall of the guide rod (10), and a connecting pipe inner wall protection component is provided in the fixed frame (7).

2. A water pump anti-water hammer device according to claim 1, characterized in that: The fixing frame (7) is connected to the inner wall of the protection box (16) via a connecting block (14).

3. A water pump anti-water hammer device according to claim 1, characterized in that: The guide plate (8) is provided with a guide hole (1) matching the guide rod (10), and the cover plate (11) is connected to the guide plate (8) via the support spring (13).

4. A water pump anti-water hammer device according to claim 1, characterized in that: A plug-in groove (15) matching the connecting pipe (6) is provided on one side of the cover plate (11), and a sealing gasket (17) is provided in the plug-in groove (15).

5. A water pump anti-water hammer device according to claim 1, characterized in that: The connecting pipe inner wall protection component comprises a plurality of pressing platforms (18) arranged in a circular array with the conical block (12) as the axis in the fixed frame (7); the top of the pressing platform (18) is connected to the fixed frame (7) through an elastic component; the bottom of the pressing platform (18) is provided with an inclined sliding surface (19) matching the conical block (12); a mounting plate (20) is arranged on one side of the pressing platform (18); a plurality of evenly distributed blocking blocks (21) are arranged at the bottom of the mounting plate (20); and the outer wall of the connecting pipe (6) is provided with a water outlet hole (22) matching the blocking block (21).

6. A water pump anti-water hammer device according to claim 5, characterized in that: The mounting plate (20) and the pressing platform (18) are an integrally formed structure.

7. A water pump anti-water hammer device according to claim 5, characterized in that: The elastic component comprises a travel groove (23) provided in the press platform (18), a slide plate (24) matching the travel groove (23) being provided in the travel groove (23), a second guide rod (25) extending outside the travel groove (23) and connected to the fixed frame (7) being provided at the top end of the slide plate (24), a second support spring (26) being provided outside the travel groove (23) and on the outer wall of the second guide rod (25), and the press platform (18) being connected to the fixed frame (7) via the second support spring (26).

8. A water pump anti-water hammer device according to claim 7, characterized in that: The press platform (18) is provided with a second guide hole matching the second guide rod (25), the travel groove (23) is a rectangular groove, and the slide plate (24) is a rectangular block.

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