Pump body noise reduction structure

Abstract

The utility model discloses a pump body noise reduction structure which comprises a pump shell and a pump head, a drainage cavity is formed in the middle of the inner side of the pump shell, a limiting column is arranged in the center of the drainage cavity, an input pipe head and an output pipe head are arranged on the side wall of the pump shell, and the output pipe head is communicated with the drainage cavity. The pump head and the pump shell are connected to form a water inlet cavity, a containing cavity communicated with the water drainage cavity is formed in the pump head, a plurality of water drainage through holes and a water drainage valve plate covering the water drainage through holes are arranged in the center of the pump head, and an output hole is formed in the position, corresponding to the output pipe head, of the side wall of the water drainage cavity. According to the pump body noise reduction structure, the pump shell is provided with the limiting column in the drainage cavity, the limiting column can abut against the middle of the drainage valve plate when the pump shell is connected with the pump head, in this way, when the drainage valve plate is subjected to fluid pressure, the drainage valve plate can be prevented from being jacked up from the pump head, and then impact of the drainage valve plate on the pump head and noise generated by impact of the drainage valve plate and the pump head are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to diaphragm pump technical field especially relates to a pump body noise reduction structure. BACKGROUND

[0002] Diaphragm pump is also called control pump, with the help of power operation to change the flow of the medium to be adjusted, and make the parameter to be adjusted maintain in the required range, and then reach the automation of production process, wherein the fluid of diaphragm pump enters the pump cavity from the one-way input valve of valve core, then the fluid in the pump cavity is discharged from the one-way discharge valve of valve core and is circulated to deliver fluid, but when the one-way discharge valve of existing diaphragm pump discharges the fluid in the pump cavity, since the discharge valve sheet does not have corresponding limiting structure, the height of discharge valve sheet is large when it is lifted from the valve core by fluid pressure, so when the discharge valve sheet resets downward, it will impact the valve core and produce large noise, so it is necessary to design new pump head noise reduction structure to solve the above problems. SUMMARY

[0003] In order to solve the above technical problems, the utility model provides a kind of pump body noise reduction structure, and the limit column is arranged in drainage cavity in the pump shell, limit column can be against the middle part of drainage valve sheet when pump shell is connected with pump head, so drainage valve sheet can avoid being lifted from pump head when being subjected to fluid pressure, and then reduce the impact of drainage valve sheet to pump head and the noise generated by the impact of both.

[0004] A kind of pump body noise reduction structure, including pump shell and pump head, the middle part of the inner side of the pump shell is provided with drainage cavity, the center of the drainage cavity is provided with limit column, the side wall of the pump shell is provided with input pipe head and output pipe head, and the output pipe head is communicated with the drainage cavity, the pump head is connected with the pump shell and forms water inlet cavity, and the pump head is provided with containing cavity communicated with the drainage cavity, the center of the pump head is provided with multiple drainage through-holes and drainage valve sheet covering multiple drainage through-holes.

[0005] Preferably, the side wall of the drainage cavity is provided with an output hole at a position corresponding to the output pipe head, the input pipe head extends into the pump shell, and the input pipe head is provided with an input hole communicated with the water inlet cavity.

[0006] Preferably, the height of the limit column is less than the height of the drainage cavity, and the limit column abuts against the middle part of the drainage valve sheet.

[0007] Preferably, multiple extrusion openings are uniformly arranged around the circumference of the drainage valve sheet, a support column is arranged at the center of the bottom surface of the drainage valve sheet, and a limit ring is arranged on the support column, a limit groove is arranged at the center of the pump head, and the support column of the drainage valve sheet passes through the pump head so that the limit ring abuts against the limit groove.

[0008] Preferably, the top surface of the pump head is uniformly provided with a plurality of water inlet valve pieces surrounding the water outlet valve piece, and the pump head is provided with a plurality of water inlet through holes corresponding to the positions of the plurality of water inlet valve pieces.

[0009] Preferably, the top surface of the water inlet valve piece is provided with a connecting column, and the connecting column is provided with a supporting ring, the pump head is provided with a plurality of supporting grooves, and the connecting columns of the plurality of water inlet valve pieces pass through the pump head and make the supporting rings and the supporting grooves one-to-one abut.

[0010] The beneficial effects of the utility model are: the pump body noise reduction structure cooperates with the pump shell and the pump head, the pump shell is provided with a limiting column in the drainage cavity, the limiting column can abut against the middle part of the water outlet valve piece when the pump shell is connected with the pump head, so that the water outlet valve piece can avoid being lifted from the pump head when the water outlet valve piece is subjected to fluid pressure, thereby reducing the impact of the water outlet valve piece on the pump head and the noise generated by the impact of the two. BRIEF DESCRIPTION OF DRAWINGS

[0011] ATTACHED Figure 1 It is a structural schematic view of the utility model;

[0012] ATTACHED Figure 2 It is an explosion view of the utility model;

[0013] ATTACHED Figure 3 It is a top view of the utility model;

[0014] ATTACHED Figure 4 It is Figure 3 A-A sectional view.

[0015] In the figure: 1 pump shell, 2 pump head, 3 drainage cavity, 4 limiting column, 5 input pipe head, 6 output pipe head, 7 water inlet cavity, 8 containing cavity, 9 drainage through hole, 10 water outlet valve piece, 11 output hole, 12 input hole, 13 extrusion opening, 14 supporting column, 15 limiting ring, 16 limiting groove, 17 water inlet valve piece, 18 water inlet through hole, 19 connecting column, 20 supporting ring, 21 supporting groove. DETAILED DESCRIPTION

[0016] The utility model will be further described in combination with the drawings and specific embodiments, so as to more clearly understand the technical thought of the utility model claimed.

[0017] For example, Figures 1 to 4As shown, a pump body noise reduction structure, including a pump shell 1 and a pump head 2, the inside of the pump shell 1 is provided with a drainage cavity 3 in the middle, the center of the drainage cavity 3 is provided with a limiting column 4, the side wall of the pump shell 1 is provided with an input pipe head 5 and an output pipe head 6, and the output pipe head 6 is communicated with the drainage cavity 3, the pump head 2 is connected with the pump shell 1 and forms a water inlet cavity 7, and the pump head 2 is provided with a containing cavity 8 communicated with the drainage cavity 3, and the center of the pump head 2 is provided with a plurality of drainage through holes 9 and a drainage valve plate 10 covering the plurality of drainage through holes 9.

[0018] The working principle of the pump body noise reduction structure is realized by the cooperation of the pump shell 1 and the pump head 2. Figures 1 to 4 As shown, the fluid enters the water inlet cavity 7 between the pump shell 1 and the pump body from the input pipe head 5, then the fluid is transported from the water inlet cavity 7 to the containing cavity 8, and then the fluid flows from the containing cavity 8 to the drainage cavity 3 through the drainage through hole 9, at this time the limiting column 4 in the drainage cavity 3 abuts against the middle part of the drainage valve plate 10 and avoids the drainage valve plate 10 from being lifted from the pump head 2, and the drainage valve plate 10 can be made of elastic material, such as plastic, so that when the drainage valve plate 10 is impacted by the fluid, the part of the drainage valve plate 10 not abutting against the limiting column 4 will be elastically deformed and turned up, so that the fluid is transported to the drainage cavity 3, and finally the fluid is discharged from the drainage cavity 3 through the output pipe head 6, and the drainage valve plate 10 will restore the deformation after not being impacted by the fluid, and since the gap between the drainage valve plate 10 and the pump head 2 is small when the drainage valve plate 10 is reset, the impact of the drainage valve plate 10 on the pump head 2 can be reduced, compared with the traditional diaphragm pump, the pump body noise reduction structure can reduce the noise generated by the impact of the drainage valve plate 10 and the pump head 2.

[0019] Specifically, the side wall of the drainage cavity 3 is provided with an output hole 11 at the position corresponding to the output pipe head 6, the input pipe head 5 extends into the pump shell 1, and the input pipe head 5 is provided with an input hole 12 communicated with the water inlet cavity 7, as shown, Figures 1 to 4 The fluid is transported along the input pipe head 5 to the input hole 12 and enters the water inlet cavity 7 through the input hole 12, and the fluid is transported from the drainage cavity 3 to the output pipe head 6 through the output hole 11 and discharged along the output pipe head 6.

[0020] Further, the height of the limiting column 4 is less than the height of the drainage cavity 3, and the limiting column 4 abuts against the middle part of the drainage valve plate 10, wherein a plurality of extrusion openings 13 are uniformly arranged around the circumference of the drainage valve plate 10, a supporting column 14 is arranged at the center of the bottom surface of the drainage valve plate 10, and a limiting ring 15 is arranged on the supporting column 14, a limiting groove 16 is arranged at the center of the pump head 2, and the supporting column 14 of the drainage valve plate 10 passes through the pump head 2 and makes the limiting ring 15 abut against the limiting groove 16, as shown, Figures 1 to 4As shown, the fluid in the accommodating cavity 8 impacts upwardly on the drain valve sheet 10 from the drain through hole 9, the part of the drain valve sheet 10 abutting against the limiting column 4 is extruded by the fluid and elastically deformed to turn upwardly, the extrusion opening 13 on the drain valve sheet 10 facilitates the elastic deformation of the drain valve sheet 10, and the drain valve sheet 10 is uniformly stressed around to control the flow of the fluid, the limiting ring 15 provided on the support column 14 of the drain valve sheet 10 abuts against the limiting groove 16 of the pump head 2 to limit the drain valve sheet 10 in cooperation with the limiting column 4, so as to avoid that the drain valve sheet 10 is lifted by the fluid to collide with the pump head 2 and generate a large noise.

[0021] Further, the top surface of the pump head 2 is uniformly provided with a plurality of water inlet valve sheets 17 surrounding the drain valve sheet 10, and the pump head 2 is provided with a plurality of water inlet through holes 18 corresponding to the positions of the water inlet valve sheets 17, wherein the top surface of the water inlet valve sheet 17 is provided with a connecting column 19, and the connecting column 19 is provided with a support ring 20, the pump head 2 is provided with a plurality of support grooves 21, and the connecting column 19 of the water inlet valve sheet 17 passes through the pump head 2 and makes the support ring 20 abut against the support groove 21 one by one, as shown. Figures 1 to 4 As shown, the fluid in the water inlet cavity 7 is transported to the accommodating cavity 8 through the water inlet through hole 18, the support ring 20 provided on the connecting column 19 of the water inlet valve sheet 17 abuts against the support groove 21 of the pump head 2 to limit the water inlet valve sheet 17, the water inlet valve sheet 17 can be made of the material corresponding to the drain valve sheet 10, and the water inlet valve sheet 17 is impacted by the fluid and elastically deformed to turn downwardly, so as to transport the fluid from the water inlet cavity 7 to the accommodating cavity 8, and avoid that the water inlet valve sheet 17 is lifted by the fluid to collide with the pump head 2 and generate a large noise.

[0022] The above is only a specific embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process conversion according to the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.

Claims

1. A pump body noise reduction structure, characterized by: The utility model provides a pump, including pump shell and pump head, the inside middle part of pump shell is provided with drainage cavity, the center of drainage cavity is provided with limiting post, the lateral wall of pump shell is provided with input pipe head and output pipe head, and output pipe head communicates with drainage cavity, pump head is connected with pump shell and forms water inlet cavity, and the inside of pump head is provided with accommodating cavity which communicates with drainage cavity, the center of pump head is provided with a plurality of drainage through -hole and the drainage valve piece that covers a plurality of drainage through -hole.

2. The pump body noise reduction structure of claim 1, wherein: The lateral wall of the drainage cavity is provided with an output hole at a position corresponding to the output pipe head. The input pipe head extends into the pump shell and is provided with an input hole that communicates with the water inlet cavity.

3. The pump body noise reduction structure of claim 1, wherein: The height of the limiting post is less than the height of the drainage cavity, and the limiting post abuts against the middle part of the drainage valve piece.

4. The pump body noise reduction structure of claim 3, wherein: A plurality of extrusion openings are uniformly arranged around the circumference of the drainage valve piece. A support post is arranged at the center of the bottom surface of the drainage valve piece, and a limiting ring is arranged on the support post. A limiting groove is arranged at the center of the pump head, and the support post of the drainage valve piece passes through the pump head so that the limiting ring abuts against the limiting groove.

5. The pump body noise reduction structure of claim 1, wherein: A plurality of water inlet valve pieces that surround the drainage valve piece are uniformly arranged around the top surface of the pump head, and a plurality of water inlet through holes are arranged at positions corresponding to the plurality of water inlet valve pieces.

6. The pump body noise reduction structure of claim 5, wherein: A connecting post is arranged on the top surface of the water inlet valve piece, and a support ring is arranged on the connecting post. The pump head is provided with a plurality of support grooves, and the connecting post of the plurality of water inlet valve pieces passes through the pump head so that the support ring abuts against the support groove one by one.

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