CN210770454U

CN210770454U - Flap check valve

Info

Publication number: CN210770454U
Application number: CN201921612978.8U
Authority: CN
Inventors: 王浩; 戴建明
Original assignee: Changzhou Sanyou Plastic Industry Co Ltd
Current assignee: Jiangsu Sanyou Pipeline Technology Co.,Ltd.
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2020-06-16
Anticipated expiration: 2029-09-25

Abstract

The utility model discloses a flap check valve, the structure of which comprises a flap device, in order to solve the problems of complicated operation of components, narrow application range and large limitation in the anti-backflow process of the check valve, the flap device is arranged at the inner sides of a right valve body and a left valve body, when water is injected, water flows down to the inner side of the right valve body through a water inlet, under the factors of water pressure and self gravity of the water injection, the flap is caused to downwards turn and is attached to the inner wall at the top of the left valve body through the matching of a torsional spring and a support plate, the water is convenient to flow into an external drain pipe through a water outlet and is discharged, when the water injection is stopped, the turning is automatically reset through the torsional spring due to the water pressure losing pressure applied by the turning and the gravity of the water, the flap is caused to bounce and is attached to a traction baffle, the flap is adsorbed by, prevent backward flow, enlarged check valve self application range, improve the beneficial effect of utilization ratio.

Description

Flap check valve

Technical Field

The utility model relates to a check valve technical field, concretely relates to board-like check valve turns over.

Background

The check valve is a valve whose opening and closing member is a circular valve flap and can be actuated by self weight and medium pressure to block back flow of medium, belonging to the field of automatic valve, also called check valve, one-way valve, backflow valve or isolating valve, and its valve flap movement mode can be divided into lift type and swing type, the lift type check valve is similar to the structure of stop valve, and only lacks valve rod for driving valve flap, the medium can be flowed in from inlet end (lower side) and flowed out from outlet end (upper side), when the inlet pressure is greater than the sum of valve flap weight and its flow resistance, the valve can be opened, otherwise, when the medium is back-flowed, the valve can be closed, and the swing type check valve has a valve flap which is obliquely placed and can be rotated around shaft, and its working principle is similar to that of lift type check valve, and its check.

When the existing check valve is used, the valve rod is usually required to be manually adjusted to be pressed down through the matching of the component to block the through hole so as to prevent water from flowing back, and the check valve is complex in equipment operation in the backflow prevention process, narrow in application range and large in limitation.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the defects of the prior art, the plate-turning type check valve is provided, the problems that the operation of parts is complex, the application range is narrow and the limitation is large in the anti-backflow process of the check valve are solved, the automatic valve opening is realized when the check valve is filled with water, the automatic valve closing is stopped when the water filling is stopped, the backflow is prevented, the application range of the check valve is expanded, and the utilization rate is improved.

(II) technical scheme

The utility model discloses a following technical scheme realizes: the utility model provides a flap check valve, including right valve body and plate turnover, the water inlet has been seted up to right valve body right-hand member, right valve body left side is fixed with left valve body bolt through the gim peg all around, the outlet has been seted up in left side valve body left side, the plate turnover outside and right valve body and left valve body internal diameter gomphosis, plate turnover is by pulling baffle, backup pad, turning over board, torsional spring, card pad and sealed the pad and constitute, it is provided with the backup pad to pull the baffle top, turn over the board top and pass through torsional spring and backup pad normal running fit, it is equipped with the card pad to insert in both sides about turning over board right side middle part, it inlays at both ends and has sealed the pad to turn over the.

Furthermore, the fixing bolts are arranged in 6 numbers, and the sizes of the fixing bolts are all consistent.

Furthermore, 6 hole grooves are annularly distributed on the periphery of the left side of the right valve body and the periphery of the right side of the left valve body, and the hole grooves are matched with the fixing bolts.

Furthermore, the baffle is the upper and lower both sides of symmetric distribution in right valve body left side inner wall for a long time, and draws the baffle left side and be provided with the adhesive pad.

Furthermore, when the turning plate is turned over and closed, the inclination angle is 15 degrees, and the length of the turning plate is matched with the distance between the traction baffles.

Furthermore, the left side and the right side of the torsion spring are provided with supporting rods, the left side supporting rod of the torsion spring is connected with the supporting plate in an inserting mode, and the right side supporting rod of the torsion spring is connected with the turning plate in an inserting mode.

Further, card pad and sealed pad all are provided with 2, card pad and sealed pad are all unanimous between the two.

Furthermore, the right valve body and the left valve body are made of PVC materials, so that the mechanical property is good, and the corrosion resistance is strong.

(III) advantageous effects

Compared with the prior art, the utility model, following beneficial effect has:

in order to solve the problems of complex operation of components, narrow use range and large limitation in the process of preventing the backflow of the check valve, by arranging the flap devices at the inner sides of the right valve body and the left valve body, water flows through the water inlet and falls to the inner side of the right valve body when water is injected, under the factors of water pressure of water injection and self gravity, the turnover part is matched with the support plate through the torsion spring and is turned downwards to be attached to the inner wall of the top of the left valve body, so that the water injection flows through the left valve body, flows into an external drain pipe through the water outlet and is discharged, when stopping the water injection, the upset loses the water pressure of exerting pressure and the gravity oppression of water self through torsional spring automatic re-setting, causes to turn over the board and bounces and pull the baffle laminating, through turning over the sealed pad of board left and right sides and pulling baffle bottom sticky pad and adsorbing, prevents the backward flow, and automatic opening valve when reaching the check valve water injection stops the water injection automatic closing valve, prevents the backward flow, has enlarged the application range of check valve self, improves the beneficial effect of utilization ratio.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the closed structure of the plate turnover device of the present invention;

fig. 3 is a schematic view of the unfolding structure of the plate turnover device of the present invention.

In the figure: the water-saving valve comprises a right valve body-1, a water inlet-2, a fixing bolt-3, a left valve body-4, a water outlet-5, a flap device-6, a traction baffle-61, a supporting plate-62, a flap-63, a torsion spring-64, a clamping pad-65 and a sealing pad-66.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, 2 and 3, the present invention provides a flap check valve: including right valve body 1 and plate turnover 6, water inlet 2 has been seted up to 1 right-hand member of right valve body, 1 left side of right valve body is fixed with 4 bolt fastening of left valve body all around through gim peg 3, outlet 5 has been seted up in 4 left sides of left valve body, 6 outside and the right valve body 1 of plate turnover and the 4 internal diameter gomphosis of left valve body, plate turnover 6 is by pulling baffle 61, backup pad 62, turn over the board 63, torsional spring 64, card pad 65 and sealed pad 66 group become, it is provided with backup pad 62 to pull baffle 61 top, turn over board 63 top and pass through torsional spring 64 and backup pad 62 normal running fit, both sides are inserted about turning over board 63 right side middle part and are equipped with card pad 65, it has sealed pad 66 to inlay.

Wherein, the gim peg 3 is provided with 6, and 3 uniform sizes of gim peg are favorable to the equipment between the valve body.

Wherein, 6 hole grooves are annularly distributed on the periphery of the left side of the right valve body 1 and the periphery of the right side of the left valve body 4, and the hole grooves are matched with the fixing bolts 3, so that the valve body is favorably fixed.

Wherein, baffle 61 is both sides about the inner wall of right valve body 1 left side that the length is the symmetric distribution, and draws baffle 61 left side to be provided with the sticky pad, is favorable to the connection of equipment.

Wherein, the inclination angle is 15 degrees when the turning plate 63 is turned over and closed, and the length of the turning plate 63 is matched with the distance between the traction baffles 61, which is beneficial to preventing water from flowing back.

The left side and the right side of the torsion spring 64 are provided with support rods, the left side support rod of the torsion spring 64 is connected with the support plate 62 in an inserting mode, the right side support rod of the torsion spring 64 is connected with the turning plate 63 in an inserting mode, and rotation of the turning plate 63 is facilitated.

Wherein, calorie of pad 65 and sealed pad 66 all are provided with 2, it is all unanimous that the size is between the card pad 65 and sealed pad 66, is favorable to the leakproofness of equipment.

The right valve body 1 and the left valve body 4 are made of PVC materials, and are good in mechanical property and strong in corrosion resistance.

The working principle is as follows: when in use, the flap check valve is moved to a proper position, the right valve body 1 and the left valve body 4 are mutually attached and are sequentially inserted into the peripheral hole grooves of the right valve body 1 and the left valve body 4 through the fixing bolts 3 for screwing, then the equipment is assembled with an external water pipe, the external water inlet pipe is spliced with the right valve body 1 through the water inlet 2, the drain pipe is spliced with the left valve body 4 through the water outlet 5, when the external water pipe is filled with water, the water flows to the inner side of the right valve body 1 through the water inlet 2, under the factors of water filling pressure and self gravity, the turnover 63 is downwards turned through the matching of the torsion spring 64 and the supporting plate 62 to be attached to the inner wall of the top of the left valve body 4, the collision force between the downward pressing of the turnover 63 and the left valve body 4 is relieved through the clamping pad 65 in the middle of the turnover 63, the water can conveniently flow through the left valve body 4 to flow into the, cause to turn over board 63 and bounce and pull baffle 61 laminating, through turning over the sealed pad 66 of board 63 left and right sides and pulling baffle 61 bottom sticky pad and adsorbing, prevent the backward flow, automatic open valve when reaching the check valve water injection stops the water injection automatic closing valve, prevents the backward flow, has enlarged check valve self application range, the beneficial effect of high-usage.

The basic principle and the main characteristics of the utility model and the advantages of the utility model have been shown and described above, and the utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the record of the description with the drawing, and the concrete connection mode of each part all adopts conventional means such as ripe bolt rivet among the prior art, welding, and machinery, part and equipment all adopt prior art, conventional model, and conventional connection mode in the prior art is adopted in addition to circuit connection, and the details are not repeated here.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a panel turnover check valve, includes right valve body (1), water inlet (2) have been seted up to right valve body (1) right-hand member, right valve body (1) left side is fixed with left valve body (4) bolt all around through gim peg (3), outlet (5), its characterized in that have been seted up in left side valve body (4): still include plate turnover (6), plate turnover (6) outside and right valve body (1) and left valve body (4) internal diameter gomphosis, plate turnover (6) comprises traction baffle (61), backup pad (62), turns over board (63), torsional spring (64), card pad (65) and sealed pad (66), traction baffle (61) top is provided with backup pad (62), turn over board (63) top and pass through torsional spring (64) and backup pad (62) normal running fit, both sides are inserted about turning over board (63) right side middle part and are equipped with card pad (65), both ends are inlayed and are sealed pad (66) about turning over board (63), traction baffle (61) right side and right valve body (1) inner wall welding.

2. The flap-type check valve of claim 1, wherein: the number of the fixing bolts (3) is 6, and the sizes of the fixing bolts (3) are all the same.

3. The flap-type check valve of claim 1, wherein: 6 hole grooves are annularly distributed on the periphery of the left side of the right valve body (1) and the periphery of the right side of the left valve body (4), and the hole grooves are matched with the fixing bolts (3).

4. The flap-type check valve of claim 1, wherein: draw baffle (61) length one and a short and be symmetric distribution in both sides about right valve body (1) left side inner wall, and draw baffle (61) left side and be provided with the adhesive pad.

5. The flap-type check valve of claim 1, wherein: the inclination angle of the turning plate (63) is 15 degrees when the turning plate is turned over and closed, and the length of the turning plate (63) is matched with the distance between the traction baffles (61).

6. The flap-type check valve of claim 1, wherein: the left side and the right side of the torsion spring (64) are provided with support rods, the left side support rod of the torsion spring (64) is connected with the support plate (62) in an inserting mode, and the right side support rod of the torsion spring (64) is connected with the turning plate (63) in an inserting mode.

7. The flap-type check valve of claim 1, wherein: card pad (65) and sealed pad (66) all are provided with 2, size is all unanimous between card pad (65) and sealed pad (66) the two.