CN216279579U

CN216279579U - Backflow-preventing mechanical valve

Info

Publication number: CN216279579U
Application number: CN202122282611.8U
Authority: CN
Inventors: 吴燕飞
Original assignee: Yinqiu Energy Conservation Engineering Co ltd
Current assignee: Yinqiu Energy Conservation Engineering Co ltd
Priority date: 2021-09-20
Filing date: 2021-09-20
Publication date: 2022-04-12
Anticipated expiration: 2031-09-20

Abstract

The utility model relates to the technical field of mechanical valves and discloses a backflow-preventing mechanical valve which comprises a valve body, a backflow-preventing mechanism and a valve seat, wherein the valve seat is fixedly arranged on the upper surface of the valve body, and the backflow-preventing mechanism is arranged inside the valve body. This anti-return mechanical valve, through the inside at the valve body sets up anti-return mechanism, can prevent effectively that case wearing and tearing from leading to the emergence of liquid backward flow phenomenon, when the valve body is in the open mode, the pressure and the impact force of its rivers can promote the shrouding right, solid fixed ring can be kept away from to the shrouding this moment, rivers can flow away right this moment, when the valve body is in the closed mode, the pressure and the impact force that lose rivers of its shrouding, move left under reset spring's effect, inside the sealing ring of its shrouding left wall can insert the seal groove, prevent that the water on valve body right side from appearing backward flow phenomenon, thereby mechanical valve has been avoided in long-time use, its case wearing and tearing lead to the backward flow phenomenon that the leakproofness reduces.

Description

Backflow-preventing mechanical valve

Technical Field

The utility model relates to the technical field of mechanical valves, in particular to an anti-backflow mechanical valve.

Background

Valves are plumbing accessories used to open and close a pipe, control flow direction, regulate and control parameters of the transport medium (temperature, pressure and flow). According to their function, they can be classified into shut-off valves, check valves, regulating valves, and the like. The valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like. Valves used in fluid control systems range in variety and size from the simplest shut-off valves to the variety of valves used in extremely complex autonomous systems. The valve can be used for controlling the flow of various fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like, and is a device for controlling the direction, pressure and flow of the fluid in a fluid system, namely a device for enabling or stopping the flow of the media (liquid, gas and powder) in pipes and equipment and controlling the flow of the media.

At present, in the process of long-time use of the existing mechanical valve, a valve core of the valve is easily abraded, so that the sealing performance of the valve core is reduced, and therefore the phenomenon of backflow of fluid can occur.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a backflow prevention mechanical valve, which solves the above problems of the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an anti-return's mechanical valve, includes valve body, anti-return mechanism and disk seat, disk seat fixed mounting is in the upper surface of valve body, anti-return mechanism sets up in the inside of valve body.

The backflow prevention mechanism comprises a fixing ring and a fixing frame, a sliding hole is formed in the fixing frame, a second limiting rod is connected to the inside of the sliding hole in a sliding mode, a sealing plate is fixedly mounted at the left end of the second limiting rod, a reset spring is sleeved on the rod body of the second limiting rod, and an inner frame is fixedly connected to the inside of the fixing ring.

Preferably, the through-hole has been seted up to the inside of inner tower, the inside sliding connection of through-hole has first gag lever post, the left end fixed mounting of first gag lever post is in the left wall of shrouding, and the setting of its through-hole and first gag lever post plays spacing effect to the shrouding, enables more stability of shrouding when removing simultaneously.

Preferably, a first limiting groove is formed in the right wall of the sealing plate, the reset spring is fixedly installed in the first limiting groove, the first limiting groove can limit the reset spring, and the reset spring is prevented from being displaced when in use.

Preferably, the right wall of mount has seted up the second spacing groove, the inside fixed mounting in second spacing groove has reset spring, mount fixed mounting is in the inside of valve body, and the setting of its second spacing groove can play spacing effect to reset spring, prevents that reset spring from the phenomenon of offset from appearing when using, and the setting of its mount can play the effect of support to the second gag lever post.

Preferably, fixed ring fixed mounting has seted up the seal groove in the inside of valve body, fixed ring's right wall, the inside bonding of seal groove has rubber seal, and the leakproofness when its seal groove and rubber seal set up and can improve the shrouding and close.

Preferably, the right wall fixedly connected with sealing ring of shrouding, the sealing ring is pegged graft in the inside of seal groove, and the leakproofness when its sealing ring sets up and can further improve the shrouding and be in closed state.

Preferably, the outer end fixedly connected with ring flange of valve body, the quantity of ring flange is two, its two the ring flange is fixed connection respectively at the left end and the right-hand member of valve body, the top of disk seat is provided with the hand wheel, and the butt joint of valve and pipeline can be made things convenient for in the setting of its ring flange.

Compared with the prior art, the utility model provides the backflow-preventing mechanical valve. The method has the following beneficial effects:

this anti-return mechanical valve, through the inside at the valve body sets up anti-return mechanism, can prevent effectively that case wearing and tearing from leading to the emergence of liquid backward flow phenomenon, when the valve body is in the open mode, the pressure and the impact force of its rivers can promote the shrouding right side, solid fixed ring can be kept away from to the shrouding this moment, rivers can flow away right this moment, when the valve body is in the closed mode, the pressure and the impact force that lose rivers of its shrouding, move left under reset spring's effect, inside the sealing ring of its shrouding left wall can insert the seal groove, prevent that the water on valve body right side from appearing backward flow phenomenon, thereby mechanical valve has been avoided in long-time use, the backward flow phenomenon that its case wearing and tearing lead to the leakproofness to reduce, the practicality of valve has been improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

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

FIG. 2 is a schematic view of a partial cross-sectional structure of the present invention;

FIG. 3 is a schematic structural view of the backflow prevention mechanism of the present invention;

fig. 4 is an enlarged schematic view of a portion a in fig. 3.

In the figure: 1. a valve body; 2. a backflow prevention mechanism; 201. a fixing ring; 202. an inner frame; 203. a first limit rod; 204. closing the plate; 205. a return spring; 206. a fixed mount; 207. a slide hole; 208. a second limiting rod; 3. a valve seat; 4. a hand wheel; 5. a flange plate; 6. a seal ring; 7. a sealing groove; 8. a rubber seal ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a mechanical valve of anti-return, includes valve body 1, anti-return mechanism 2 and

disk seat

3, and 3 fixed mounting of disk seat in the upper surface of valve body 1, anti-return mechanism 2 set up in the inside of valve body 1.

The backflow prevention mechanism 2 comprises a fixing ring 201 and a fixing frame 206, a sliding hole 207 is formed in the fixing frame 206, a second limiting rod 208 is connected to the inside of the sliding hole 207 in a sliding mode, a sealing plate 204 is fixedly mounted at the left end of the second limiting rod 208, a reset spring 205 is sleeved on the rod body of the second limiting rod 208, and an inner frame 202 is fixedly connected to the inside of the fixing ring 201.

The inner frame 202 is internally provided with a through hole, the inside of the through hole is connected with a first limiting rod 203 in a sliding way, the left end of the first limiting rod 203 is fixedly arranged on the left wall of the closing plate 204, the arrangement of the through hole and the first limiting rod 203 plays a role in limiting the closing plate 204 and simultaneously enables the closing plate 204 to be more stable when moving, the right wall of the closing plate 204 is provided with a first limiting groove, the reset spring 205 is fixedly arranged inside the first limiting groove, the arrangement of the first limiting groove can play a role in limiting the reset spring 205 and preventing the reset spring 205 from shifting when in use, the right wall of the fixing frame 206 is provided with a second limiting groove, the reset spring 205 is fixedly arranged inside the second limiting groove, the fixing frame 206 is fixedly arranged inside the valve body 1, the arrangement of the second limiting groove can play a role in limiting the reset spring 205 and prevent the reset spring 205 from shifting when in use, the fixing frame 206 is arranged to support the second limiting rod 208, the fixing ring 201 is fixedly arranged inside the valve body 1, the right wall of the fixing ring 201 is provided with a sealing groove 7, a rubber sealing ring 8 is bonded inside the sealing groove 7, the sealing performance of the sealing plate when the sealing plate is closed can be improved due to the arrangement of the sealing groove 7 and the rubber sealing ring 8, the outer end of the valve body 1 is fixedly connected with two flange plates 5, the two flange plates 5 are respectively and fixedly connected to the left end and the right end of the valve body 1, a hand wheel 4 is arranged above the valve seat 3, the butt joint of the valve and a pipeline can be facilitated due to the arrangement of the flange plates 5, the backflow prevention mechanism 2 is arranged inside the valve body 1, so that the phenomenon of liquid backflow caused by valve core abrasion can be effectively prevented, when the valve body 1 is in an opening state, the sealing plate 204 is pushed rightwards due to the pressure and impact force of water flow, at the moment, the sealing plate 204 is far away from the fixing ring 201, at this moment, water flow can flow away to the right, and when valve body 1 was in the closed condition, the pressure and the impact force of losing rivers of its shrouding 204 moved left under reset spring 205's effect, and inside seal groove 7 can be inserted to the sealing ring 6 of its shrouding 204 left wall, prevented that the backward flow phenomenon from appearing in the water on valve body 1 right side to avoided mechanical valve in long-time use, the backward flow phenomenon that its case wearing and tearing lead to the leakproofness to reduce has improved the practicality of valve.

In the actual operation in-process, when this device uses, through the inside at valve body 1 sets up anti-reflux mechanism 2, can prevent effectively that case wearing and tearing from leading to the emergence of liquid backward flow phenomenon, when valve body 1 is in the open mode, the pressure and the impact force of its rivers can promote shrouding 204 right, solid fixed ring 201 can be kept away from to shrouding 204 this moment, rivers can flow away right this moment, when valve body 1 is in the closed mode, the pressure and the impact force that lose rivers of its shrouding 204, move left under reset spring 205's effect, inside sealing ring 6 of its shrouding 204 left wall can insert seal groove 7, prevent that the water on valve body 1 right side from appearing backward flow phenomenon, thereby avoided mechanical valve in long-time use, the backward flow phenomenon that its case wearing and tearing lead to the leakproofness to reduce, the practicality of valve has been improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.

Claims

1. The utility model provides a mechanical valve of anti-return, includes valve body (1), anti-return mechanism (2) and disk seat (3), its characterized in that: the valve seat (3) is fixedly arranged on the upper surface of the valve body (1), and the backflow prevention mechanism (2) is arranged inside the valve body (1);

anti-return mechanism (2) are including solid fixed ring (201), mount (206), slide opening (207) have been seted up to the inside of mount (206), the inside sliding connection of slide opening (207) has second gag lever post (208), the left end fixed mounting of second gag lever post (208) has shrouding (204), reset spring (205) have been cup jointed to the body of rod of second gag lever post (208), the inside fixedly connected with inner tower (202) of solid fixed ring (201).

2. A mechanical backflow prevention valve as claimed in claim 1, wherein: the inner frame (202) is provided with a through hole, the through hole is connected with a first limiting rod (203) in a sliding mode, and the left end of the first limiting rod (203) is fixedly installed on the left wall of the sealing plate (204).

3. A mechanical backflow prevention valve as claimed in claim 1, wherein: a first limiting groove is formed in the right wall of the sealing plate (204), and the return spring (205) is fixedly installed inside the first limiting groove.

4. A mechanical backflow prevention valve as claimed in claim 1, wherein: the right wall of the fixing frame (206) is provided with a second limiting groove, a reset spring (205) is fixedly mounted inside the second limiting groove, and the fixing frame (206) is fixedly mounted inside the valve body (1).

5. A mechanical backflow prevention valve as claimed in claim 1, wherein: fixed ring (201) fixed mounting has been seted up in the inside of valve body (1), seal groove (7) have been seted up to the right wall of fixed ring (201), the inside bonding of seal groove (7) has rubber seal (8).

6. A backflow prevention mechanical valve as claimed in claim 5, wherein: the right wall of shrouding (204) fixedly connected with sealing ring (6), sealing ring (6) are pegged graft in the inside of seal groove (7).

7. A mechanical backflow prevention valve as claimed in claim 1, wherein: the outer end fixedly connected with ring flange (5) of valve body (1), the quantity of ring flange (5) is two, its two ring flange (5) is fixed connection respectively at the left end and the right-hand member of valve body (1), the top of disk seat (3) is provided with hand wheel (4).