Diaphragm pump with noise reduction and shock absorption structure
By setting multiple drain valves around the water inlet hole in the diaphragm pump and combining them with damping gaskets and limit column structures, the water hammer vibration and noise problems during the diaphragm pump drainage are solved, and the effect of noise reduction and vibration buffering is achieved.
Patent Information
- Application Number
- CN202422831838.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-11-20
AI Technical Summary
Existing diaphragm pumps are prone to water hammer vibration and noise when draining water, mainly because the drainage valve body is concentrated in the middle, resulting in pressure concentration.
Multiple drain valves are designed to be set around the water inlet hole, and the fluid is dispersed into the accommodating cavity at multiple points. The pressure concentration is reduced through the cooperation of the pump body and the pump head shell, and the damping gasket and limit column structure are used to buffer vibration and noise.
It effectively reduces the generation of water hammer vibration and noise, and improves the stability and quietness of the diaphragm pump.
Smart Images
Figure CN223410981U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of diaphragm pumps, in particular to a diaphragm pump with a noise reduction and shock absorbing structure. Background Art
[0002] Diaphragm pumps, also known as control pumps, use power operations to change the flow rate of the regulated medium and maintain the regulated parameters within the required range, thereby achieving automation of the production process. The drain valve body and drain chamber of the pump head of existing diaphragm pumps are both located in the middle, and the drain valve body is single. As a result, when the water input into the pump body is discharged from the drain chamber, the concentrated pressure in the drain chamber is likely to cause water hammer vibration, thereby generating greater vibration and noise. Therefore, it is necessary to design a new diaphragm pump structure to solve the above problems. Utility Model Content
[0003] In order to solve the above technical problems, the utility model provides a diaphragm pump with a noise reduction and shock absorbing structure, which is provided with multiple drain valves, and the multiple drain valves are arranged around the water inlet hole, so that the fluid is dispersedly collected into the accommodating chamber at multiple points to avoid the pressure collected into the accommodating chamber from being concentrated and easily generating water hammer vibration phenomenon, thereby reducing the corresponding vibration and noise.
[0004] A diaphragm pump with a noise reduction and shock-absorbing structure comprises a pump body and a pump head shell, the side walls of the pump head shell are provided with an input pipe head and an output pipe head, and the top center of the pump head shell is provided with a water inlet chamber and a drainage chamber between the input pipe head and the output pipe head, the input pipe head is communicated with the water inlet chamber, and the output pipe head is communicated with the drainage chamber, a recess is provided at the bottom of the pump head shell, the pump head shell is connected to the pump body and forms an accommodating chamber, and the water inlet chamber and the drainage chamber are respectively communicated with the accommodating chamber, a plurality of water inlet through holes are provided in the middle of the pump body, and a plurality of drain valves are provided around the plurality of water inlet through holes on the pump body, the drain valve is provided with a drainage through hole, and a valve plate is slidably connected to the drain valve.
[0005] Preferably, the pump head housing is provided with a delivery cavity between the water inlet cavity and the drainage cavity, the bottom surface of the delivery cavity is provided with a through groove communicating with the recessed portion, and the side wall of the delivery cavity is provided with a delivery through hole communicating with the drainage cavity.
[0006] Preferably, a sealing cover for sealing the water inlet cavity, the delivery cavity and the drainage cavity is provided on the pump head housing, and a damping gasket is provided on the sealing cover.
[0007] Preferably, a plurality of arc-shaped grooves are provided on the bottom surface of the water inlet cavity, and the water inlet cavity is connected with the accommodating cavity through the arc-shaped grooves.
[0008] Preferably, a slide groove is provided on the drain valve, a sliding column is provided on the bottom surface of the valve plate, and the valve plate is slidably connected to the slide groove of the drain valve through the sliding column.
[0009] Preferably, a plurality of limiting columns are provided in the recessed portion of the pump head housing corresponding to the positions of the plurality of drain valves, and the valve plate can abut against the limiting columns when moving on the drain valve.
[0010] The beneficial effect of the present utility model is that the diaphragm pump with a noise reduction and shock absorbing structure cooperates with each other through the pump body and the pump head shell, so that a plurality of drain valves are provided, and the plurality of drain valves are arranged around the water inlet through-hole, and the fluid is dispersedly collected into the accommodating chamber at multiple points to avoid the pressure collected into the accommodating chamber from being concentrated and easily generating the vibration phenomenon of water hammer, thereby reducing the corresponding vibration and noise. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Attachment Figure 1 This is a schematic diagram of the structure of the utility model;
[0012] Attachment Figure 2 This is the front view of the utility model;
[0013] Attachment Figure 3 for Figure 2 Middle AA section view;
[0014] Attachment Figure 4 This is a schematic diagram of the pump head shell structure in the utility model;
[0015] Attachment Figure 5 This is an exploded view of the utility model;
[0016] Attachment Figure 6 This is another exploded view of the present invention;
[0017] Attachment Figure 7 for Figure 6 A partial enlarged view of middle B.
[0018] In the figure: 1 pump body, 2 pump head shell, 3 input pipe head, 4 output pipe head, 5 water inlet chamber, 6 drainage chamber, 7 accommodating chamber, 8 water inlet through hole, 9 drainage valve, 10 drainage through hole, 11 valve plate, 12 delivery chamber, 13 through groove, 14 delivery through hole, 15 sealing cover, 16 damping gasket, 17 arc groove, 18 slide groove, 19 slide column, 20 limit column. DETAILED DESCRIPTION
[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so as to provide a clearer understanding of the technical concept to be protected by the present invention.
[0020] like Figures 1 to 7As shown, a diaphragm pump with a noise reduction and shock absorbing structure includes a pump body 1 and a pump head shell 2, the side walls of the pump head shell 2 are provided with an input pipe head 3 and an output pipe head 4, and the top center of the pump head shell 2 is provided with a water inlet chamber 5 and a drainage chamber 6 between the input pipe head 3 and the output pipe head 4, the input pipe head 3 is connected with the water inlet chamber 5, and the output pipe head 4 is connected with the drainage chamber 6, the bottom of the pump head shell 2 is provided with a recessed portion, the pump head shell 2 is connected to the pump body 1 and forms an accommodating chamber 7, and the water inlet chamber 5 and the drainage chamber 6 are respectively connected with the accommodating chamber 7, a plurality of water inlet holes 8 are provided in the middle of the pump body 1, and a plurality of drain valves 9 are provided around the plurality of water inlet holes 8 of the pump body 1, the drain valve 9 is provided with a drainage through hole 10, and a valve plate 11 is slidably connected to the drain valve 9.
[0021] The working principle of the diaphragm pump with noise reduction and shock absorption structure described in the present invention is achieved through the cooperation between the pump body 1 and the pump head shell 2. Figures 1 to 7 As shown, the fluid is input from the input pipe head 3 to the water inlet chamber 5, and then transported along the water inlet chamber 5 to the accommodating chamber 7. Subsequently, the fluid in the accommodating chamber 7 enters the pump body 1 through the water inlet hole 8. Finally, the fluid in the pump impacts the valve plate 11 and causes the valve plate 11 to move, so that the valve plate 11 that closes the drainage hole 10 opens, so that the fluid can be discharged from the accommodating chamber 7 from the drainage hole 10. Finally, the fluid in the accommodating chamber 7 is discharged from the output pipe head 4 from the drainage chamber 6. Compared with the traditional diaphragm pump, the diaphragm pump with a noise reduction and shock absorbing structure is provided with multiple drain valves 9, and the multiple drain valves 9 are arranged around the water inlet hole 8, so that the fluid is dispersedly gathered into the accommodating chamber 7 to avoid the pressure concentration of the accommodating chamber 7 and the vibration phenomenon of water hammer, thereby reducing the corresponding vibration and noise.
[0022] Specifically, the pump head housing 2 is provided with a delivery chamber 12 between the water inlet chamber 5 and the drainage chamber 6, the bottom surface of the delivery chamber 12 is provided with a through groove 13 communicating with the recessed portion, and the side wall of the delivery chamber 12 is provided with a delivery through hole 14 communicating with the drainage chamber 6, wherein the pump head housing 2 is provided with a sealing cover 15 that closes the water inlet chamber 5, the delivery chamber 12 and the drainage chamber 6, and the sealing cover 15 is provided with a damping gasket 16, wherein the bottom surface of the water inlet chamber 5 is provided with a plurality of arc-shaped grooves 17, and the water inlet chamber 5 is communicated with the accommodating chamber 7 through the arc-shaped grooves 17, as shown in FIG. Figures 1 to 7As shown, the sealing cover 15 can be installed on the top surface of the pump head housing 2 by bolts. The sealing cover 15 closes the water inlet chamber 5, the delivery chamber 12 and the drainage chamber 6 and separates the three. The fluid in the water inlet chamber 5 is delivered to the accommodating chamber 7 through the arc-shaped groove 17, and the fluid in the pump head is discharged from the drain valve 9 to the accommodating chamber 7. Then, the fluid in the accommodating chamber 7 is delivered to the delivery chamber 12 through the through groove 13. The damping gasket 16 can replace the sealing cover 15 to contact the fluid, and can buffer the impact of the water flow on the sealing cover 15 to reduce the vibration and noise generated, and the fluid in the delivery chamber 12 is discharged to the output pipe head 4 through the delivery through hole 14.
[0023] Furthermore, a chute 18 is provided on the drain valve 9, a slide column 19 is provided on the bottom surface of the valve plate 11, and the valve plate 11 is slidably connected to the chute 18 of the drain valve 9 through the slide column 19. Furthermore, a plurality of limit columns 20 are provided on the recessed portion of the pump head housing 2 corresponding to the positions of the plurality of drain valves 9, and the valve plate 11 can be abutted against the limit columns 20 when moving on the drain valve 9, as shown in FIG. Figures 1 to 7 As shown, the fluid in the pump body 1 impacts the valve plate 11 on the drain valve 9, and the valve plate 11 moves along the slide groove 18 through the slide column 19, thereby opening the drain through hole 10 on the drain valve 9, so that the fluid in the pump body 1 is discharged to the accommodating chamber 7, and the impact of the fluid in the accommodating chamber 7 on the drain valve 9 will not drive the valve plate 11 to move, and has a one-way conduction function. After the valve plate 11 opens the drain through hole 10, the limit column 20 can be against the valve plate 11 to prevent the valve plate 11 from falling off the drain valve 9.
[0024] The above are only specific embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A diaphragm pump with a noise reduction and shock absorbing structure, characterized in that: It includes a pump body and a pump head shell, the side walls of the pump head shell are provided with an input pipe head and an output pipe head, and the center of the top surface of the pump head shell is provided with a water inlet chamber and a drainage chamber between the input pipe head and the output pipe head, the input pipe head is communicated with the water inlet chamber, and the output pipe head is communicated with the drainage chamber, the bottom of the pump head shell is provided with a recessed portion, the pump head shell is connected to the pump body and forms an accommodating chamber, and the water inlet chamber and the drainage chamber are respectively communicated with the accommodating chamber, a plurality of water inlet through holes are provided in the middle of the pump body, and a plurality of drain valves are provided around the plurality of water inlet through holes on the pump body, the drain valve is provided with a drainage through hole, and a valve plate is slidably connected to the drain valve.
2. The diaphragm pump with a noise reduction and shock absorbing structure according to claim 1, characterized in that: The pump head housing is provided with a delivery cavity between the water inlet cavity and the drainage cavity, the bottom surface of the delivery cavity is provided with a through groove communicating with the recessed portion, and the side wall of the delivery cavity is provided with a delivery through hole communicating with the drainage cavity.
3. The diaphragm pump with a noise reduction and shock absorbing structure according to claim 2, characterized in that: The pump head shell is provided with a sealing cover for sealing the water inlet cavity, the delivery cavity and the drainage cavity, and the sealing cover is provided with a damping gasket.
4. The diaphragm pump with a noise reduction and shock absorbing structure according to claim 1, characterized in that: The bottom surface of the water inlet cavity is provided with a plurality of arc-shaped grooves, and the water inlet cavity is communicated with the accommodating cavity through the arc-shaped grooves.
5. The diaphragm pump with a noise reduction and shock absorbing structure according to claim 1, characterized in that: The drain valve is provided with a slide groove, the bottom surface of the valve plate is provided with a slide column, and the valve plate is slidably connected to the slide groove of the drain valve through the slide column.
6. The diaphragm pump with a noise reduction and shock absorbing structure according to claim 5, characterized in that: The recessed portion of the pump head housing is provided with a plurality of limiting columns corresponding to the positions of the plurality of drain valves, and the valve plate can abut against the limiting columns when moving on the drain valve.