CN213450808U

CN213450808U - Valve gap and pump

Info

Publication number: CN213450808U
Application number: CN202021468553.7U
Authority: CN
Inventors: 雷澳
Original assignee: Shenzhen Huachuang Science And Technology Co ltd
Current assignee: Shenzhen Huachuang Science And Technology Co ltd
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2021-06-15
Anticipated expiration: 2030-07-22

Abstract

The utility model discloses a valve gap and pump, wherein, the valve gap includes the valve gap body, metal valve block and flexible sealing washer, the valve gap body is equipped with the runner that is used for supplying the fluid flow, and the valve gap body includes the end cover and covers the apron of locating the end cover, the metal valve block is located between end cover and the apron, the metal valve block includes the valve block body and locates the inside first tongue piece that can produce deformation of valve block body relatively of valve block body, first tongue piece is used for opening or closing of control runner, flexible sealing washer, be located between end cover and the apron, flexible sealing washer including the annular framework that is used for reinforcing valve gap body leakproofness with locate the annular framework inboard and with the first butt portion of first tongue piece butt, first butt portion is used for preventing first tongue piece and valve gap body rigid contact. The utility model discloses a valve gap, first butt portion can prevent that first tongue piece from deformation or recovering to the in-process and the valve gap body rigid contact of original condition to the life of valve gap has been prolonged.

Description

Valve gap and pump

Technical Field

The utility model relates to a pump technical field especially relates to a valve gap and use pump of this valve gap.

Background

The metal valve plate has the characteristics of long service life and high temperature resistance, so the metal valve plate is widely applied to various pumps. The metal valve plate is basically structured in such a way that a rectangular valve plate is provided with a gap to form a tongue-shaped reed, pressure difference is generated on two sides of the reed in the process of conveying fluid, the reed is deformed under the pushing of the fluid, so that the fluid can freely pass through the metal valve plate to play a role in conveying the fluid, and after the fluid is conveyed, the reed can be restored to the original state under the action of the elasticity of the reed. However, in the existing metal valve plate, the reed may be in rigid contact with other parts of the pump in the process of being restored to the original state after deformation or deformation is finished, so that the service life of the pump is influenced.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, one of the purposes of the utility model is to provide a valve cover for solving the problem that the service life of the existing pump is short. A second object of the present invention is to provide a pump, which uses the valve cover as described above.

The utility model discloses an one of the purpose adopts following technical scheme to realize:

a valve cover, comprising:

the valve cover comprises a valve cover body and a valve body, wherein the valve cover body is provided with a flow channel for fluid to flow, and comprises an end cover and a cover plate covering the end cover;

the metal valve plate is positioned between the end cover and the cover plate and comprises a valve plate body and a first tongue piece which is arranged in the valve plate body and can deform relative to the valve plate body, and the first tongue piece is used for controlling the opening or closing of the flow channel;

the flexible sealing ring is located the end cover with between the apron, flexible sealing ring is including being used for the reinforcing the annular framework of valve gap body leakproofness with locate annular framework inboard and with the first butt portion of first tongue piece butt, first butt portion is used for preventing first tongue piece with valve gap body rigid contact.

Further, metal valve block still including locate in the valve block body and with first tongue looks spaced second tongue, flexible sealing ring still including be used for with the second butt portion of second tongue butt.

Furthermore, the flexible sealing ring further comprises a connecting beam connected between two opposite corners of the frame body, two ends of the first abutting portion are connected with the connecting beam and the frame body respectively, two ends of the second abutting portion are connected with the connecting beam and the frame body respectively, and the first abutting portion and the second abutting portion are located on two opposite sides of the connecting beam respectively.

Furthermore, two convex columns which are arranged diagonally are convexly arranged on one side of the end cover facing the cover plate, and a groove for inserting the convex column is formed in the cover plate.

Further, be equipped with two in the framework and be used for right the convex column dodges the first portion of dodging that the position was dodged, the tie-beam is connected in two between the first portion of dodging.

Furthermore, the frame body is further provided with two second avoidance parts which are arranged diagonally, and a connecting line of the two first avoidance parts and a connecting line of the two second avoidance parts are intersected in an X shape.

Further, the runner is including locating the input tube of end cover, locating the end cover orientation apron one side and with the input hole of input tube intercommunication, run through the apron and with the first chamber that holds that the input hole set up relatively, locate the end cover and with input tube looks spaced output tube, concave locate the end cover orientation apron one side and with the second that the output tube communicates holds the chamber and runs through the apron and with the output hole that the second held the chamber and set up relatively, first tongue piece covers the input hole, the second tongue piece covers the output hole.

Furthermore, one flexible sealing ring is arranged between the metal valve plate and the end cover and between the metal valve plate and the cover plate, and an accommodating groove for accommodating the flexible sealing ring is concavely arranged on one side of the end cover facing the metal valve plate and one side of the cover plate facing the metal valve plate.

Further, the end cover moves towards one side of the cover plate is convexly provided with a positioning column, the valve block body is provided with a positioning hole, the cover plate moves towards one side of the end cover is concavely provided with a concave hole, and the positioning column penetrates through the positioning hole and then is inserted into the concave hole.

The second purpose of the utility model is realized by adopting the following technical scheme:

a pump comprising a valve cover as described above.

Compared with the prior art, the beneficial effects of the utility model reside in that: through set up the first butt portion with first tongue piece butt in the framework, first butt portion can prevent first tongue piece at the in-process and the valve gap body rigid contact of deformation or recovery to the original condition to the life of valve gap has been prolonged.

Drawings

Fig. 1 is a schematic structural diagram of a valve cover according to an embodiment of the present invention;

FIG. 2 is an exploded schematic view of the valve cover shown in FIG. 1;

FIG. 3 is a schematic structural view of the end cap shown in FIG. 2;

FIG. 4 is a schematic structural view of the cover plate shown in FIG. 2;

FIG. 5 is a schematic structural diagram of the metal valve plate shown in FIG. 2;

fig. 6 is a schematic structural view of the flexible sealing ring shown in fig. 2.

In the figure: 100. a valve cover; 10. a bonnet body; 20. a metal valve plate; 30. a flexible sealing ring; 11. an end cap; 12. a cover plate; 111. an input tube; 112. an input aperture; 121. a first accommodating chamber; 113. an output pipe; 114. a second accommodating chamber; 122. an output aperture; 21. a valve plate body; 22. a first tongue piece; 23. a second tongue; 24. a first gap; 25. a second gap; 31. an annular frame body; 32. a connecting beam; 33. a first abutting portion; 34. a second abutting portion; 13. a containing groove; 221. a first connection portion; 222. a first tongue portion; 231. a second connecting portion; 232. a second tongue portion; 115. a positioning column; 211. positioning holes; 123. concave holes; 116. a convex column; 124. a groove; 212. a fixing hole; 311. a first avoidance portion; 213. a first connection hole; 117. a second connection hole; 125. a third connection hole; 312. a second avoidance portion.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

It should be noted that all the directional indicators (such as upper, lower, left, right, front, back, inner, outer, top, bottom … …) in the embodiments of the present invention are only used to explain the relative position between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

It will also be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Referring to fig. 1-6, a pump according to an embodiment of the present invention includes a valve cover 100, the valve cover 100 includes a valve cover body 10, a metal valve plate 20, and a flexible sealing ring 30, the valve cover body 10 is provided with a flow channel for fluid to flow, the valve cover body 10 includes an end cover 11 and a cover plate 12 covering one side of the end cover 11, and the metal valve plate 20 and the flexible sealing ring 30 are both located between the end cover 11 and the cover plate 12.

Preferably, the flow channel includes an input pipe 111 disposed on the end cover 11, an input hole 112 disposed on one side of the end cover 11 facing the cover plate 12 and communicated with the input pipe 111, a first accommodating portion penetrating through the cover plate 12 and disposed opposite to the input hole 112, an output pipe 113 disposed on the end cover 11 and spaced from the input pipe 111, a second accommodating chamber 114 recessed on one side of the end cover 11 facing the cover plate 12 and communicated with the output pipe 113, and an output hole 122 penetrating through the cover plate 12 and disposed opposite to the first accommodating chamber 121, the metal valve sheet 20 includes a valve sheet body 21 and a first tongue piece 22 and a second tongue piece 23 disposed inside the valve sheet body 21 and capable of deforming relative to the valve sheet body 21, the first tongue piece 22 covers the input hole 112, and the second tongue piece 23 covers the output hole 122.

When the pump is in operation, fluid can enter the flow channel through the opening of the input pipe 111 and then reach the input hole 112, so that a pressure difference is generated between two sides of the first tongue piece 22, the first tongue piece 22 is pushed to deform, the fluid can enter the first accommodating chamber 121 from the gap between the first tongue piece 22 and the end cover 11, the first accommodating chamber 121 and the output hole 122 both penetrate through the cover plate 12, therefore, the fluid in the first accommodating chamber 121 can enter the output hole 122 from the side of the cover plate 12 far away from the end cover 11, a pressure difference is generated between two sides of the second tongue piece 23, the second tongue piece 23 is deformed, and the fluid can enter the second accommodating chamber 114 through the gap between the second tongue piece 23 and the cover plate 12 and finally is discharged through the output pipe 113 communicated with the second accommodating chamber 114.

Preferably, first mounting hole and second mounting hole have been seted up on valve block body 21, first tongue piece 22 slope sets up in first mounting hole, second tongue piece 23 slope sets up in the second mounting hole, first tongue piece 22 and second tongue piece 23 all are cantilever type structure, that is, the one end of first tongue piece 22 is connected with the pore wall of first mounting hole, other positions then form first clearance 24 with the pore wall of first mounting hole, the one end of second tongue piece 23 is connected with the pore wall of second mounting hole, other positions then form second clearance 25 with the pore wall of second mounting hole, and first clearance 24 and second clearance 25 all are the U-shaped to make the two all have certain elasticity. Because the first tongue piece 22 and the second tongue piece 23 are both obliquely arranged, under the limitation of the size of the valve sheet body 21, the oblique arrangement can prolong the lengths of the first tongue piece 22 and the second tongue piece 23 as much as possible so as to enhance the elasticity of the first tongue piece 22 and the second tongue piece 23, and the first tongue piece 22 and the second tongue piece 23 are convenient to deform. Moreover, since one metal valve plate 20 includes two tongues, the first tongue 22 can control the opening and closing of the input hole 112, and the second tongue 23 can control the opening and closing of the output hole 122, that is, one metal valve plate 20 can control the input and discharge of fluid, thereby reducing the production cost of the pump.

Preferably, the flexible sealing ring 30 includes an annular frame 31, a connecting beam 32, a first abutting portion 33 and a second abutting portion 34, the first abutting portion 33, the second abutting portion 34 and the connecting beam 32 are all fixed inside the annular frame 31, the connecting beam 32 is connected between two opposite corners of the frame, both ends of the first abutting portion 33 and the second connecting portion 231 are respectively connected with the connecting beam 32 and the annular frame 31, the first abutting portion 33 and the second abutting portion 34 are located on opposite sides of the connecting beam 32, the annular frame 31 is used for enhancing the sealing performance of the bonnet body 10, the first abutting portion 33 abuts against the first tongue piece 22, the second abutting portion 34 abuts against the second tongue piece 23, the problem that the first tongue piece 22 and the second tongue piece 23 are in rigid contact with the valve cover body 10 in the process of deformation or restoration to the original state can be prevented, the service life of a pump using the valve cover 100 is prolonged, and meanwhile, noise generated in the working process is reduced.

In this embodiment, two flexible sealing rings 30 are provided, the metal valve plate 20 is clamped between the two flexible sealing rings 30, the accommodating grooves 13 for accommodating the flexible sealing rings 30 are provided on one side of the end cover 11 facing the metal valve plate 20 and one side of the cover plate 12 facing the metal valve plate 20, the two flexible sealing rings 30 are respectively installed in the two accommodating grooves 13, so that the two opposite sides of the first tongue piece 22 are abutted to the first abutting portion 33 of the flexible sealing ring 30, the two opposite sides of the second tongue piece 23 are abutted to the second abutting portion 34 of the flexible sealing ring 30, and the problem of preventing the first tongue piece 22 and the second tongue piece 23 from being in rigid contact with the end cover 11 and the cover plate 12 is further enhanced.

Preferably, the first tongue piece 22 includes a first connecting portion 221 in a rectangular shape and a first tongue portion 222 in a semicircular shape, two ends of the first connecting portion 221 are respectively connected with the first tongue portion 222 and the valve plate body 21, the first abutting portion 33 abuts against the first connecting portion 221, the second tongue piece 23 includes a second connecting portion 231 in a rectangular shape and a second tongue portion 232 in a semicircular shape, two ends of the second connecting portion 231 are respectively connected with the second tongue portion 232 and the valve plate body 21, and the second abutting portion 34 abuts against the second connecting portion 231.

Preferably, a positioning column 115 is convexly disposed on one side of the end cover 11 facing the cover plate 12, a positioning hole 211 is disposed on the valve plate body 21, a concave hole 123 is concavely disposed on one side of the cover plate 12 facing the end cover 11, and the positioning column 115 is inserted into the concave hole 123 after passing through the positioning hole 211. The number of the positioning posts 115, the positioning holes 211 and the concave holes 123 is not limited, and is one in this embodiment. In the process of assembling the valve cover 100, the positioning post 115 can be used to pass through the positioning hole 211, so as to quickly find the mounting position of the metal valve plate 20, and then the positioning post 115 is inserted into the concave hole 123, so that the metal valve plate 20, the end cover 11 and the cover plate 12 can be quickly and accurately assembled together, thereby improving the production efficiency.

Preferably, the end cover 11 is provided with two convex columns 116 arranged diagonally in a protruding manner towards one side of the cover plate 12, the cover plate 12 is provided with a groove 124 for inserting the convex column 116, the valve sheet body 21 is of a rectangular structure with a rounded corner, that is, the valve sheet body 21 is rectangular, but four corners of the valve sheet body are rounded corners, two corners arranged diagonally on the valve sheet body 21 are respectively provided with a fixing hole 212 for the convex column 116 to pass through, a connecting line defining the centers of the two fixing holes 212 is a diagonal line of the valve sheet body 21, the first tongue piece 22 and the second tongue piece 23 are respectively arranged on two sides of the diagonal line, and the extending direction of the first tongue piece 22 is just opposite to the extending direction of the second tongue piece 23. When the valve cover 100 is assembled, the convex post 116 can penetrate through the fixing hole 212 and then be inserted into the groove 124, so that the end cover 11, the cover plate 12 and the metal valve plate 20 can be initially assembled together, and the valve cover 100, the cover plate 12 and the metal valve plate 20 can be conveniently and fixedly connected together by a later-stage worker through a connecting piece.

In this embodiment, the first tongue piece 22 and the second tongue piece 23 are both disposed parallel to the diagonal line, and the extending direction of the first tongue piece 22 and the extending direction of the first abutting portion 33 are perpendicular to each other, and the extending direction of the second tongue piece 23 and the extending direction of the second abutting portion 34 are perpendicular to each other.

Preferably, two corners of the annular frame 31, which are diagonally disposed, are recessed inward to form a first avoiding portion 311 for avoiding the convex pillar 116, and the connecting beam 32 is connected between the two first avoiding portions 311.

Preferably, two other corners of the valve plate body 21 are respectively provided with a first connecting hole 213, the end cover 11 is provided with a second connecting hole 117 in a contraposition manner, the cover plate 12 is provided with a third connecting hole 125 in a contraposition manner, the end cover 11, the metal valve plate 20 and the cover plate 12 can be fixedly connected together after the connecting piece sequentially passes through the first connecting hole 213, the second connecting hole 117 and the third connecting hole 125, the other two corners arranged diagonally on the annular frame 31 are inwards recessed to form second avoiding portions 312 for avoiding the connecting piece, and a connecting line of the two first avoiding portions 311 and a connecting line of the two second avoiding portions 312 are intersected in an X shape.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. A valve cover, comprising:

2. A valve cover as set forth in claim 1 wherein said metal valve plate further includes a second tab disposed within said valve plate body and spaced from said first tab, said flexible seal ring further including a second abutment for abutting said second tab.

3. The valve cover according to claim 2, wherein the flexible sealing ring further comprises a connecting beam connected between two opposite corners of the frame body, two ends of the first abutting portion are respectively connected with the connecting beam and the frame body, two ends of the second abutting portion are respectively connected with the connecting beam and the frame body, and the first abutting portion and the second abutting portion are respectively located on two opposite sides of the connecting beam.

4. A valve cover as set forth in claim 3 wherein said cover has two diagonally disposed posts projecting from a side of said cover facing said cover plate, and said cover plate has a groove for receiving said posts.

5. A valve cover according to claim 4, wherein the frame body is provided with two first avoidance portions for avoiding the convex column, and the connecting beam is connected between the two first avoidance portions.

6. A valve cover as set forth in claim 5, wherein the frame body is further provided with two diagonally disposed second avoidance portions, and a line connecting the two first avoidance portions and a line connecting the two second avoidance portions intersect in an X-shape.

7. A valve cover as set forth in claim 2 wherein said flow path includes an inlet tube disposed in said end cap, an inlet opening disposed in a side of said end cap facing said cover plate and communicating with said inlet tube, a first receiving chamber extending through said cover plate and disposed opposite said inlet opening, an outlet tube disposed in said end cap and spaced from said inlet tube, a second receiving chamber recessed in a side of said end cap facing said cover plate and communicating with said outlet tube, and an outlet opening extending through said cover plate and disposed opposite said second receiving chamber, said first tab covering said inlet opening and said second tab covering said outlet opening.

8. A valve cover as set forth in claim 1, wherein one of said flexible sealing rings is disposed between said metal valve plate and said cover plate, and wherein an accommodating groove for accommodating said flexible sealing ring is recessed in both a side of said cover plate facing said metal valve plate and a side of said cover plate facing said metal valve plate.

9. A valve cover as set forth in claim 1, wherein the end cap has a positioning post protruding from a side thereof facing the cover plate, the valve plate body has a positioning hole, the side of the cover plate facing the end cap has a recessed hole, and the positioning post passes through the positioning hole and is inserted into the recessed hole.

10. A pump comprising a valve cover as claimed in any one of claims 1 to 9.