CN211975986U

CN211975986U - Check valve convenient to installation

Info

Publication number: CN211975986U
Application number: CN201922472541.5U
Authority: CN
Inventors: 陆嘉峰; 刘湖; 吴俊�
Original assignee: Shanghai Stable Electromechanical Equipment Co ltd
Current assignee: Shanghai sitanbo fluid control Co.,Ltd.
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-11-20
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a check valve convenient to installation, which comprises a valve body, fixed hinge joint has the hinge bar on the inside lateral wall of valve body, and one side welded fastening of hinge bar has the spring, there is the apron top of valve body through the bolt fastening, one side welding intercommunication of valve body has the incoming end, and the junction of incoming end and valve body inlays and have the valve plate, the opposite side welding intercommunication of valve body has the output, the incoming end has installation mechanism with the equal fixed mounting of the other end that connects the output. The utility model discloses a centre gripping arm that sets up in the installation mechanism installs for the symmetry, and connects through two sets of fastening screw between the centre gripping arm, the effectual installation convenience that has strengthened the device, simultaneously, sets up second adjusting screw and remove through the meshing of screw thread on the centre gripping arm, is favorable to making the device be connected with the pipe connection end of different specification thickness through the position of adjustment second adjusting screw, is convenient for improve the device's application scope.

Description

Check valve convenient to installation

Technical Field

The utility model relates to a check valve equipment technical field specifically is a check valve convenient to installation.

Background

The check valve is a valve which is operated by self weight and medium pressure to block the media from flowing backwards, is also called a check valve, a one-way valve, a backflow valve or an isolation valve, is usually used in a transmission pipeline of media such as air and liquid due to simple structure and stable working property, and is used for preventing the media from flowing backwards to cause the influence on the working of equipment.

The interior of the existing check valve is mostly composed of a symmetrical design or a single valve plate, the opening and closing of the valve body are realized through the rotation of the valve plate, and because the connecting parts between the valve plate and the valve body are too many, after the check valve is used for a long time, gaps can be caused by the abrasion between the valve plate and the valve plate of the valve body, so that the working stability of the check valve is greatly influenced;

in addition, the existing valve body is mostly connected through a flange when being installed, the existing valve body needs to be fixedly connected through screwing a plurality of bolts when being used, and the installation is complicated, so that the check valve convenient to install is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a check valve convenient to installation to the cooperation between the inside valve plate of present check valve that proposes in solving above-mentioned background art and the valve body leads to producing the clearance because wearing and tearing easily, influences the operating condition of check valve, and the check valve adopts the flange to connect when connecting, makes the installation of connecting too loaded down with trivial details problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a check valve convenient to installation, includes the valve body, fixed hinge has the hinge bar on the inside lateral wall of valve body, and one side welded fastening of hinge bar has the spring, there is the apron top of valve body through the bolt fastening, the pressfitting has first sealed rubber ring between valve body and the apron, the intermediate position welded fastening of apron has the swivel nut, and the intermediate position of swivel nut inserts and is equipped with first adjusting screw, one side welded fastening of valve body has the incoming end, and the junction of incoming end and valve body inlays and have the valve plate, the opposite side welded fastening of valve body has the delivery end, the equal fixed mounting of the other end of incoming end and delivery end has installation mechanism, the internally mounted of installation mechanism has the centre gripping arm.

Preferably, the hinge rod is connected with the valve body in a rotating mode, the other end of the spring is fixed to the inner wall of the valve body in a welding mode, and the hinge rod is connected with the valve body in an elastic and telescopic mode through the spring.

Preferably, the inner wall of the screw sleeve is uniformly provided with threads, the threads arranged on the inner wall of the screw sleeve are matched with the threads arranged on the outer side of the first adjusting screw rod, and the first adjusting screw rod is in threaded rotary connection with the screw sleeve through the threads.

Preferably, the appearance of valve plate is semicircle form, the even parcel in the outside of valve plate has the rubber pad, the valve plate passes through hinge bar and spring and access end design to be elastic telescopic connection.

Preferably, installation mechanism includes flange, the sealed rubber ring of second, centre gripping arm, second adjusting screw, pipeline connection end, fastening screw, nut and fixture block, flange fixed welding is at the opposite side of incoming end, flange's opposite side is inlayed and is had the sealed rubber ring of second, flange's upper and lower both sides all articulate there is the centre gripping arm, and the inside of centre gripping arm inserts and be equipped with second adjusting screw, the centre block of centre gripping arm has the pipeline connection end, and is a set of the both sides of centre gripping arm symmetry respectively articulate there is fastening screw, and fastening screw's outside cover is equipped with the nut, another group the both sides of centre gripping arm symmetry welding respectively has the fixture block.

Preferably, the centre gripping arm rotates with flange to be connected, set up threaded hole on the lateral wall of centre gripping arm, and the screw thread looks adaptation of screw hole and the assembly of second adjusting screw outside, second adjusting screw passes through meshing and centre gripping arm screw thread swivelling joint of screw thread, fastening screw rotates with the centre gripping arm to be connected, logical groove has been seted up on the fixture block, and the appearance that leads to the groove is the U-shaped.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the valve plate is hemispherical, and the rubber pad is wrapped on the outer side of the valve plate, so that the valve plate is in a full attaching state when being embedded on the access end, the problem that the sealing is not tight after the valve plate and the access end are abraded due to the fact that the attaching position of the valve plate and the access end in the device is weak is effectively avoided, and the working stability and the service life of the device are greatly improved;

2. install for the symmetry through the centre gripping arm that sets up in the installation mechanism, and connect through two sets of fastening screw between the centre gripping arm, the effectual installation convenience that has strengthened the device, simultaneously, set up second adjusting screw and remove through the meshing of screw thread on the centre gripping arm, be favorable to making the device be connected with the pipe connection end of different specification thickness through the position of adjustment second adjusting screw, be convenient for improve the device's application scope.

Description of the 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 is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

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

FIG. 3 is a schematic side view of the structure of the present invention;

fig. 4 is an enlarged schematic view of a structure shown in fig. 1 according to the present invention.

In the figure: 1. a valve body; 2. a hinged lever; 3. a spring; 4. a cover plate; 5. a first sealing rubber ring; 6. a threaded sleeve; 7. a first adjusting screw; 8. an access end; 9. a valve plate; 10. an output end is connected; 11. a connecting flange; 12. a second sealing rubber ring; 13. a clamp arm; 14. a second adjusting screw; 15. a pipeline connecting end; 16. fastening a screw rod; 17. a nut; 18. and (7) clamping blocks.

The specific implementation mode is as follows:

the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides an embodiment: the utility model provides a check valve convenient to installation, including valve body 1, fixed articulated rod 2 on the inside lateral wall of valve body 1, and one side welded fastening of articulated rod 2 has spring 3, articulated rod 2 rotates with valve body 1 to be connected, the other end welded fastening of spring 3 is on the inner wall of valve body 1, articulated rod 2 passes through spring 3 and 1 elastic telescopic connection of valve body, it is elastic telescopic connection to set up articulated rod 2 under spring 3's elastic support, when making the inside no medium circulation of the device, under spring 3's elastic support effect, the device realizes automatic closure, the effectual refluence circumstances appears in the medium that prevents.

A cover plate 4 is fixed above a valve body 1 through bolts, a first sealing rubber ring 5 is pressed between the valve body 1 and the cover plate 4, the sealing performance between the cover plate 4 and the valve body 1 can be effectively guaranteed through elastic deformation of the first sealing rubber ring 5, the cover plate 4 and the valve body 1 are connected through bolts, so that the device is convenient to disassemble and maintain, a threaded sleeve 6 is fixed at the middle position of the cover plate 4 in a welded mode, a first adjusting screw 7 is inserted at the middle position of the threaded sleeve 6, threads are uniformly assembled on the inner wall of the threaded sleeve 6, the threads assembled on the inner wall of the threaded sleeve 6 are matched with the threads assembled on the outer side of the first adjusting screw 7, the first adjusting screw 7 is rotatably connected with the threads of the threaded sleeve 6 through the threads, when the device is used, the first adjusting screw 7 moves up and down in the threaded sleeve 6 under the meshing action of the threads, and therefore the position of the bottom of the first adjusting screw 7 can be changed, thereby controlling the rotation amplitude of the hinge rod 2, being convenient for changing the opening amplitude of the device by adjusting the first adjusting screw rod 7, and further controlling the flow rate of the internal medium of the device, and leading the control of the device to be more convenient.

One side welding intercommunication of valve body 1 has access end 8, and access end 8 inlays with valve plate 9 with the junction of valve body 1, valve plate 9's appearance is the semicircle form, the even parcel in the outside of valve plate 9 has the rubber pad, valve plate 9 is elastic telescopic connection through hinge bar 2 and spring 3 with the design of access end 8, the valve plate 9 of hemisphere design, its contact surface is effectual to be promoted when laminating with access end 8 one end, the rubber pad of cooperation valve plate 9 outside parcel, the effectual laminating compactness between valve plate 9 and the access end 8 that has strengthened, the effectual valve plate 9 that prevents receives wearing and tearing to lead to not tight with the laminating of access end 8, be convenient for improve the device's job stabilization nature, the effectual life who prolongs the device.

The other side of the valve body 1 is welded and communicated with a receiving outlet end 10, the other ends of the receiving inlet end 8 and the receiving outlet end 10 are fixedly provided with a mounting mechanism, a clamping arm 13 is arranged in the mounting mechanism, the mounting mechanism comprises a connecting flange 11, a second sealing rubber ring 12, a clamping arm 13, a second adjusting screw 14, a pipeline connecting end 15, a fastening screw 16, a nut 17 and a fixture block 18, the connecting flange 11 is fixedly welded on the other side of the receiving inlet end 8, the second sealing rubber ring 12 is embedded on the other side of the connecting flange 11, the upper side and the lower side of the connecting flange 11 are both hinged with the clamping arms 13, the second adjusting screw 14 is inserted in the clamping arms 13, the pipeline connecting end 15 is clamped in the middle of the clamping arms 13, the fastening screws 16 are symmetrically hinged on two sides of one group of the clamping arms 13, the nuts 17 are sleeved on the outer sides of the fastening screws 16, the, the installation mechanisms are arranged at the other ends of the incoming end 8 and the outgoing end 10, so that the device can be connected through the installation mechanisms instead of bolts on flanges when in use, and the installation convenience of the device is greatly improved.

The clamping arm 13 is rotatably connected with the connecting flange 11, a threaded hole is formed in the side wall of the clamping arm 13, the threaded hole is matched with threads assembled on the outer side of the second adjusting screw 14, the second adjusting screw 14 is rotatably connected with the clamping arm 13 through threaded engagement, the fastening screw 16 is rotatably connected with the clamping arm 13, a through groove is formed in the clamping block 18, the through groove is U-shaped in shape, when the clamping device works, a worker installs the pipeline connecting end 15 on the other side of the second sealing rubber ring 12, the second adjusting screw 14 is pressed on the pipeline connecting end 15 through rotating the clamping arm 13, the second adjusting screw is clamped in a groove formed in the clamping block 18 through the other end of the fastening screw 16, when the nut 17 rotates, the two groups of clamping arms 13 are clamped, so that the clamping device can tightly connect the pipeline connecting end 15 with the connecting flange 11 through pressing, and the installation convenience of the clamping device is effectively improved, simultaneously, set up second adjusting screw 14 and pass through threaded connection with centre gripping arm 13 for can be through rotating the position of adjustment second adjusting screw 14, thereby adjust second adjusting screw 14 and hold the compactness to the pressure of pipeline link 15, the device of being convenient for installs the pipeline link 15 of different thickness specifications fast, the effectual application scope who improves the device.

The working principle is as follows: during work, a worker fixes the device on a pipeline through the mounting mechanism, the worker rotates the second adjusting screw 14 according to actual use conditions, the second adjusting screw 14 moves on the clamping arm 13 under the meshing action of threads, then the worker rotates the clamping arm 13 to enable the clamping arm 13 to wrap the outer side of the pipeline connecting end 15, the worker rotates the fastening screw 16 to enable the other end of the fastening screw 16 to be clamped in a groove formed in the clamping block 18, and then the worker rotates the nut 17 to enable the nut 17 to move on the fastening screw 16 under the meshing action of the threads, so that the two groups of clamping arms 13 are clamped, and the pipeline connecting end 15 is fixed;

during operation, the device is when starting, medium impact valve plate 9 makes valve plate 9 open, because valve plate 9 is semi-circular, if the refluence appears in the medium, valve plate 9 blocks up inside access end 8 under spring 3's elastic support, make the device carry out the non return, in operation, if need carry out flow control to the device, only need rotate first adjusting screw 7, under the meshing effect of screw thread, make first adjusting screw 7's position change, thereby the turned angle to hinge bar 2 through first adjusting screw 7's bottom position limits, change valve plate 9's the range of opening, do above the utility model discloses a whole theory of operation.

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.

Claims

1. A check valve convenient to installation, includes valve body (1), its characterized in that: a hinge rod (2) is fixedly hinged on the inner side wall of the valve body (1), a spring (3) is fixedly welded on one side of the hinge rod (2), a cover plate (4) is fixed above the valve body (1) through bolts, a first sealing rubber ring (5) is pressed between the valve body (1) and the cover plate (4), a threaded sleeve (6) is welded and fixed in the middle of the cover plate (4), a first adjusting screw rod (7) is inserted in the middle of the threaded sleeve (6), one side of the valve body (1) is welded and communicated with an access end (8), a valve plate (9) is embedded at the joint of the access end (8) and the valve body (1), the other side welding intercommunication of valve body (1) has and connects output (10), the equal fixed mounting of the other end that connects output (10) of incoming end (8) has installation mechanism, the internally mounted of installation mechanism has centre gripping arm (13).

2. An easy to install check valve as defined in claim 1, wherein: articulated rod (2) and valve body (1) rotate to be connected, the other end welded fastening of spring (3) is on the inner wall of valve body (1), articulated rod (2) are connected with valve body (1) elasticity flexible through spring (3).

3. An easy to install check valve as defined in claim 1, wherein: the inner wall of the screw sleeve (6) is uniformly provided with threads, the threads assembled on the inner wall of the screw sleeve (6) are matched with the threads assembled on the outer side of the first adjusting screw rod (7), and the first adjusting screw rod (7) is in threaded rotary connection with the screw sleeve (6) through the threads.

4. An easy to install check valve as defined in claim 1, wherein: the appearance of valve plate (9) is semicircle form, the even parcel in the outside of valve plate (9) has the rubber pad, valve plate (9) are through articulated mast (2) and spring (3) and access end (8) design for elastic telescopic connection.

5. An easy to install check valve as defined in claim 1, wherein: the mounting mechanism comprises a connecting flange (11), a second sealing rubber ring (12), a clamping arm (13), a second adjusting screw (14), a pipeline connecting end (15), a fastening screw (16), a nut (17) and a clamping block (18), the connecting flange (11) is fixedly welded at the other side of the access end (8), a second sealing rubber ring (12) is embedded at the other side of the connecting flange (11), the upper side and the lower side of the connecting flange (11) are both hinged with clamping arms (13), a second adjusting screw (14) is inserted in the clamping arm (13), a pipeline connecting end (15) is clamped in the middle of the clamping arm (13), fastening screws (16) are symmetrically hinged to two sides of one group of clamping arms (13) respectively, and the outer side of the fastening screw rod (16) is sleeved with a nut (17), and the two sides of the other group of the clamping arms (13) are respectively symmetrically welded with clamping blocks (18).

6. An easy to install check valve as defined in claim 5, wherein: centre gripping arm (13) are rotated with flange (11) and are connected, set up threaded hole on the lateral wall of centre gripping arm (13), and the screw thread looks adaptation of screw hole and the assembly of second adjusting screw (14) outside, second adjusting screw (14) pass through threaded meshing and centre gripping arm (13) screw thread swivelling joint, fastening screw (16) are rotated with centre gripping arm (13) and are connected, logical groove has been seted up on fixture block (18), and the appearance that leads to the groove is the U-shaped.