CN218152500U

CN218152500U - Check valve for pump

Info

Publication number: CN218152500U
Application number: CN202222331954.3U
Authority: CN
Inventors: 虞晓峰
Original assignee: Wuxi Moda Technology Co ltd
Current assignee: Wuxi Moda Technology Co ltd
Priority date: 2022-09-02
Filing date: 2022-09-02
Publication date: 2022-12-27
Anticipated expiration: 2032-09-02

Abstract

The utility model relates to a check valve technical field just discloses a check valve for pump, which comprises a valve seat, the equal fixedly connected with mounting flange in the left and right sides of disk seat, the valve pocket has been seted up to the inside of disk seat, the inside fixedly connected with fixing base of disk seat, the opening has been seted up to the inside of fixing base, the inside fixedly connected with cross seat of disk seat, the inside of disk seat is provided with the valve clack. This check valve for pump, be connected valve clack and cross seat through elastic connection mechanism, make the inside that the medium enters into the disk seat from the left import of disk seat, alright drive the valve clack and remove in the inside of disk seat rightly, the right-hand member of connecting rod removes in the inside of movable groove simultaneously, and spring and bellows synchronous contraction, can effectively protect the spring through the bellows, avoid the spring and the disk seat inside medium contact and the oxidation condition appears, guarantee the elasticity of spring, the life of the device is improved.

Description

Check valve for pump

Technical Field

The utility model relates to a check valve technical field specifically is a check valve for pump.

Background

The check valve is commonly called as a check valve, is also called as a check valve or a check valve and is used for preventing reverse flow of oil flow in a hydraulic system or preventing reverse flow of compressed air in a pneumatic system, the check valve has a straight-through type and a right-angle type, and when the check valve is used on a water pump, the check valve is generally arranged at the water outlet of the water pump to prevent backflow of water during power-off shutdown and prevent damage of a water pump impeller due to inversion.

In the prior art, a check valve is disclosed as chinese patent CN210266036U, which is provided with a notch through hole at the center of the baffle, the notch through hole is matched with the notch guide rod of the valve core, so that the notch guide rod just falls into the notch through hole, thereby the valve core can not rotate circumferentially in the opening and closing processes, thereby avoiding the noise caused thereby, but the check valve supports the baffle through the spring, achieving the sealing effect, but the spring lacks the protection effect, after the spring contacts with the medium, oxidation occurs, and further reducing the elasticity of the spring, thereby reducing the sealing effect of the baffle, therefore, a check valve for a pump is needed to be provided to solve the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a check valve for pump possesses and protects the spring, avoids the spring to receive the medium influence and the oxidation appears in the inside of valve pocket, guarantees the elasticity effect of spring, improves advantages such as the closed sealed effect of valve clack, has solved the spring and has lacked the protecting effect, makes spring and medium contact back, takes place the oxidation, and then reduces the elasticity of spring to reduce the problem of the sealed effect of baffle.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a check valve for pump, includes the disk seat, the equal fixedly connected with mounting flange in the left and right sides of disk seat, the valve pocket has been seted up to the inside of disk seat, the inside fixedly connected with fixing base of disk seat, the opening has been seted up to the inside of fixing base, the inside fixedly connected with cross seat of disk seat, the inside of disk seat is provided with the valve clack, the valve clack passes through elastic connection mechanism and is connected with cross seat.

Elastic connection mechanism includes connecting rod and spring, the movable groove has been seted up in the left side of cross seat, the left end of connecting rod and the right side fixed connection of valve clack, the right-hand member of connecting rod is pegged graft with the inside activity in movable groove, both ends respectively with valve clack and the relative one side fixed connection of cross seat about the spring, the bellows has been cup jointed to the side surface of spring.

Preferably, a semicircular ball is fixedly connected to the left side of the valve flap, the left side of the circulation hole is an inclined plane, the semicircular ball is located inside the circulation hole, and the semicircular ball is matched with the inside of the circulation hole.

Preferably, the left side fixedly connected with seal ring pad of valve clack, the circular slot has been seted up on the right side of fixing base, the inside looks adaptation of valve clack and circular slot, the left side of valve clack is located the inside of circular slot, the left side of seal ring pad and the left side wall overlap joint of circular slot.

Preferably, the number of the elastic connection mechanisms is four, the four elastic connection mechanisms are uniformly distributed on the right side of the valve clack in an annular mode, the number of the movable grooves is four, and the right sides of the four elastic connection mechanisms are respectively connected with the four left corners of the cross-shaped seat.

Preferably, both ends are respectively with valve clack and the relative one side fixed connection of cross seat about the bellows, the spring cup joints with the connecting rod activity, connecting rod and spring looks adaptation.

Preferably, the fixing base is located the left side of cross seat, the left side of disk seat is equipped with the import, the right side of disk seat is equipped with the export, the radius of valve clack is less than the internal diameter of disk seat.

Compared with the prior art, the utility model provides a check valve for pump possesses following beneficial effect:

1. this check valve for pump is connected valve clack and cross seat through elastic connection mechanism, make the inside that the medium enters into the disk seat from the left import of disk seat, alright drive the valve clack and remove in the inside of disk seat right, the right-hand member of connecting rod removes in the inside of movable groove simultaneously, and spring and bellows shrink in step, can effectively protect the spring through the bellows, avoid the spring and the inside medium contact of disk seat and the oxidation condition appears, guarantee the elasticity of spring, improve the device's life.

2. This check valve for pump sets up four elastic connection mechanisms through the right side at the valve clack, alright in order to improve the steady effect that the valve clack removed, and when receiving the medium impact, makes the atress of valve clack even, is difficult for appearing the wearing and tearing condition between valve clack and the connecting rod, and can reduce the atress through setting up the semicircle ball.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a front sectional view of the present invention;

FIG. 3 is an enlarged view of the structure A of the present invention;

fig. 4 is a right side schematic view of the present invention.

Wherein: 1. a valve seat; 2. installing a flange; 3. a fixed seat; 4. a flow-through hole; 5. a cross-shaped seat; 6. a valve flap; 7. a connecting rod; 8. a spring; 9. a movable groove; 10. a bellows; 11. a semi-sphere; 12. a seal ring gasket; 13. a circular groove.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the invention easy to understand, the invention is further explained below with reference to the specific embodiments, but the following embodiments are only the preferred embodiments of the invention, not all. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention. The experimental procedures in the following examples were carried out in a conventional manner unless otherwise specified, and materials, reagents and the like used in the following examples were commercially available unless otherwise specified.

Please refer to fig. 1-4, a check valve for pump, including a valve seat 1, the valve seat 1 is set to be cylindrical, the left and right sides of the valve seat 1 are fixedly connected with a mounting flange 2, the left side of the valve seat can be fixedly installed with a pump body through the mounting flange 2, the right side of the valve seat is connected with a conveying pipeline, after fluid output by the pump body enters from the left side of the valve seat 1, the fluid can flow out from the right side of the valve seat 1, a valve cavity is arranged in the valve seat 1, the valve cavity is set to be circular, a fixing seat 3 is fixedly connected in the valve seat 1, a circulation hole 4 is arranged in the fixing seat 3, a cross seat 5 is fixedly connected in the valve seat 1, four parts of the side surface of the cross seat 5 are fixedly connected with the inner side wall of the valve seat 1, a valve flap 6 is arranged in the valve seat 1, the valve flap 6 is located between the fixing seat 3 and the cross seat 5, and the valve flap 6 is connected with the cross seat 5 through an elastic connection mechanism.

Elastic connection mechanism includes connecting rod 7 and spring 8, movable groove 9 has been seted up in the left side of cross seat 5, the left end of connecting rod 7 and the right side fixed connection of valve clack 6, move alright with driving connecting rod 7 and together remove when valve clack 6, the right-hand member of connecting rod 7 is pegged graft with the inside activity of movable groove 9, can carry out spacingly to connecting rod 7 through movable groove 9, prevent that valve clack 6 from taking place to rotate in disk seat 1's inside, spring 8's the left and right sides both ends respectively with valve clack 6 and the relative one side fixed connection of cross seat 5, under spring 8's effect, can carry out spacing support to valve clack 6 and hold, prevent that valve clack 6 from moving rightly in disk seat 1's inside, bellows 10 has been cup jointed to spring 8's side surface.

Further, the left side fixedly connected with semicircle ball 11 of valve clack 6, the left side of circulation hole 4 sets up to the inclined plane, set up through the inclined plane, be convenient for the circulation from the left side of disk seat 1 enter into the inside of circulation hole 4, semicircle ball 11 is located the inside of circulation hole 4, semicircle ball 11 and the inside looks adaptation of circulation hole 4, can seal the inside of circulation hole 4 through semicircle ball 11, and under semicircle ball 11's effect, can reduce the medium to the impact dynamics of valve clack 6, reduce the impaired condition of valve clack 6.

Further, the left side fixedly connected with seal ring pad 12 of valve clack 6, semicircle ball 11 is located the inside of seal ring pad 12, circular slot 13 has been seted up on the right side of fixing base 3, the inside looks adaptation of valve clack 6 and circular slot 13, the left side of valve clack 6 is located the inside of circular slot 13, the left side of seal ring pad 12 and the left side wall overlap joint of circular slot 13, under seal ring pad 12's effect, can improve the sealed effect between valve clack 6 and the circular slot 13, seal through 6 convection current through-hole 4 departments of valve clack simultaneously, alright in order to prevent the medium reflux on 1 right side of disk seat to circulation hole 4 departments, realize the one-way circulation effect.

Further, the quantity of elastic connection mechanism is four, four elastic connection mechanisms are the right side of annular evenly distributed at valve clack 6, the quantity of activity groove 9 is four, four activity grooves 9 are corresponding with four elastic connection mechanisms's position respectively, four elastic connection mechanism's right side is connected with the left side four corners of cross seat 5 respectively, under four elastic connection mechanism's effect, it is spacing effectively to valve clack 6, prevent it to take place to rotate, and valve clack 6 is more steady when removing, the atress that receives left side medium impact is more even, reduce valve clack 6 and connecting rod 7's junction and appear impaired condition.

Further, both ends respectively with one side fixed connection that valve clack 6 and cross seat 5 are relative about bellows 10, spring 8 cup joints with connecting rod 7 activity, connecting rod 7 and spring 8 looks adaptation, through the connection condition of bellows 10, can seal its inside, prevent that outside medium from entering into the inside of bellows 10, thereby the realization protects spring 8, prevent spring 8 and medium contact and the oxidation condition appears, guarantee spring 8's elastic effect, improve the sealed effect between valve clack 6 and the fixing base 3.

Further, fixing base 3 is located the left side of cross seat 5, the left side of disk seat 1 is equipped with the import, the right side of disk seat 1 is equipped with the export, the radius of valve clack 6 is less than the internal diameter of disk seat 1, make the medium can get into from the left side of disk seat 1, and drive valve clack 6 and move to the right, after valve clack 6 moved out from the inside of circular slot 13, the medium alright with flowing out from the inside of opening 4, and flow to the right between valve clack 6 and disk seat 1, and after passing through cross seat 5, flow from the right side of disk seat 1.

The utility model discloses a use as follows:

during the use, with mounting flange 2 with disk seat 1 fixed mounting in the delivery port department of the pump body, make the fluid of pump body output enter into the inside of disk seat 1 from the left side of disk seat 1, flow into the inside of flow through hole 4 cocurrently, contact with semicircle ball 11, under the fluid impact effect, alright move with driving semicircle ball 11 and valve clack 6, drive the right-hand member of connecting rod 7 at the inside of activity groove 9 and move simultaneously, and spring 8 and bellows 10 contract in step, can protect spring 8 through bellows 10, avoid spring 8 and the inside fluid contact of disk seat 1, after the inside removal of circular slot 13 is gone out in the left side of valve clack 6, the fluid alright flow in the inside of disk seat 1 through valve clack 6, and after through cross seat 5, flow out from the right side of disk seat 1.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only the preferred embodiments of the present invention, and is not intended to limit the present invention, and that there may be various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A check valve for a pump, comprising a valve seat (1), characterized in that: the valve seat is characterized in that mounting flanges (2) are fixedly connected to the left side and the right side of the valve seat (1), a valve cavity is formed in the valve seat (1), a fixing seat (3) is fixedly connected to the inside of the valve seat (1), a circulation hole (4) is formed in the fixing seat (3), a cross-shaped seat (5) is fixedly connected to the inside of the valve seat (1), a valve flap (6) is arranged in the valve seat (1), and the valve flap (6) is connected with the cross-shaped seat (5) through an elastic connection mechanism;

elastic connection mechanism includes connecting rod (7) and spring (8), movable groove (9) have been seted up in the left side of cross seat (5), the left end of connecting rod (7) and the right side fixed connection of valve clack (6), the right-hand member of connecting rod (7) is pegged graft with the inside activity in movable groove (9), both ends are relative one side fixed connection with valve clack (6) and cross seat (5) respectively about spring (8), bellows (10) have been cup jointed to the side surface of spring (8).

2. A check valve for a pump as claimed in claim 1, wherein: the left side fixedly connected with semicircle ball (11) of valve clack (6), the left side of circulation hole (4) sets up to the inclined plane, semicircle ball (11) are located the inside of circulation hole (4), semicircle ball (11) and the inside looks adaptation of circulation hole (4).

3. A check valve for a pump as claimed in claim 1, wherein: the left side fixedly connected with seal ring pad (12) of valve clack (6), circular slot (13) have been seted up on the right side of fixing base (3), the inside looks adaptation of valve clack (6) and circular slot (13), the left side of valve clack (6) is located the inside of circular slot (13), the left side of seal ring pad (12) and the left side wall overlap joint of circular slot (13).

4. A check valve for a pump as claimed in claim 1, wherein: the quantity of elastic connection mechanism is four, and four elastic connection mechanisms are annular evenly distributed on the right side of valve clack (6), the quantity of activity groove (9) is four, and four elastic connection mechanism's right side is connected with the left side four corners of cross seat (5) respectively.

5. A check valve for a pump as claimed in claim 1, wherein: both ends are respectively with valve clack (6) and the relative one side fixed connection of cross seat (5) about bellows (10), spring (8) cup joint with connecting rod (7) activity, connecting rod (7) and spring (8) looks adaptation.

6. A check valve for a pump as claimed in claim 1, wherein: fixing base (3) are located the left side of cross seat (5), the left side of disk seat (1) is equipped with the import, the right side of disk seat (1) is equipped with the export, the radius of valve clack (6) is less than the internal diameter of disk seat (1).