CN220870155U - Rotary-opening stop valve - Google Patents

Abstract

The utility model discloses a swing stop valve, which comprises a valve body, wherein a swing arm is rotatably arranged on the valve body, and a valve clack is arranged on the swing arm; a damper is also arranged in the valve body; the damper comprises a pipe body, wherein the interior of the pipe body is filled with non-Newtonian fluid, and the non-Newtonian fluid is sealed in the pipe body through a piston; one surface of the piston, which is far away from the non-Newtonian fluid, is abutted against the swing arm through a push rod. Through the mode, when the swing arm drops in the twinkling of an eye the in-process striking ejector pin, the ejector pin prevents the swing arm whereabouts under the effect of non-Newtonian fluid this moment, and then can avoid the swing arm to drop in the twinkling of an eye and lead to the impaired problem of valve clack, simultaneously when the impact force disappeared in the twinkling of an eye, non-Newtonian fluid takes place to warp, the ejector pin of being convenient for is to the inside shrink of body, and then does not influence the closing of valve clack again, has based on this, avoids the valve clack to close fast, prevents the emergence of water hammer phenomenon, protects the valve clack, makes it can not receive the destruction, and then is worth popularizing and applying.

Description

Rotary-opening stop valve

Technical Field

The utility model relates to the technical field of valves, in particular to a swing stop valve.

Background

The existing swing check valve often has the following problems in the use process: in the process of rotating and closing the check valve clack around the pin shaft, the closing speed is too high, so that the impact force of the valve clack sealing surface to the valve seat sealing surface is too large, the sealing surface is easy to damage, the check valve cannot be effectively stopped, and the service life is reduced; meanwhile, when the check valve clack is closed quickly, water hammer is easy to generate, and damage conditions such as damage to the valve are caused. The patent numbers found by search are: in the prior art of CN112081966B, although the above problems can be solved, by reading the technical solution, it is not difficult to find that the structure is relatively complex.

Disclosure of utility model

The utility model aims to provide a swing stop valve so as to solve the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the swing stop valve comprises a valve body, wherein a swing arm is rotatably installed on the valve body, and a valve clack is arranged on the swing arm; a damper is also arranged in the valve body; the damper comprises a pipe body, wherein the interior of the pipe body is filled with non-Newtonian fluid, and the non-Newtonian fluid is sealed in the pipe body through a piston; one surface of the piston, which is far away from the non-Newtonian fluid, is abutted against the swing arm through a push rod.

As a preferable technical scheme of the utility model: the pipe body is also provided with a container, and the container is communicated with the inner connection of the pipe body.

As a preferable technical scheme of the utility model: and a sealing cover is arranged at one end of the pipe body, which is far away from the ejector rod.

As a preferable technical scheme of the utility model: the outer wall of the pipe body is in threaded fit with the valve body through threads, and the pipe body is driven to be mounted on the valve body through a driving part.

As a preferable technical scheme of the utility model: the inner wall of the valve body is also provided with a limiting part, and one surface of the swing arm facing the limiting part is also provided with a shock pad.

As a preferable technical scheme of the utility model: and a reset piece is also arranged in the tube body.

As a preferable technical scheme of the utility model: the swing arm is towards the one side of ejector pin is equipped with the supporting seat, just the ejector pin through the supporting pad that is equipped with the supporting seat is inconsistent.

As a preferable technical scheme of the utility model: the shock pad with the supporting pad and with the supporting seat all sets up cylindricly, just the shock pad the supporting pad and the supporting seat all adopts rubber material to make.

By adopting the technical scheme, the utility model has the beneficial effects that: when the swing arm drops in the twinkling of an eye the in-process striking ejector pin, the ejector pin prevents the swing arm whereabouts under the effect of non-Newtonian fluid this moment, and then can avoid the swing arm to drop in the twinkling of an eye and lead to the impaired problem of valve clack, and simultaneously when the impact force disappeared in the twinkling of an eye, non-Newtonian fluid takes place to warp, the ejector pin of being convenient for is to the inside shrink of body, and then does not influence the closing of valve clack again, has based on this, avoids the valve clack to close fast, prevents the emergence of water hammer phenomenon, protects the valve clack, makes it can not receive the destruction, and especially, this equipment is more retrencied in the structure when realizing above-mentioned function.

Drawings

FIG. 1 is a schematic view of a main structure of the present utility model in a closed state;

FIG. 2 is a schematic view of the main structure of the present utility model when opened;

FIG. 3 is an enlarged schematic view of a portion of FIG. 1 at A;

Fig. 4 is a schematic main structure of the damper of the present utility model.

In the figure: 1. a valve body; 2. a shock pad; 3. a damper; 30. a container; 31. a tube body; 32. a push rod; 33. a driving section; 34. sealing cover; 35. a piston; 36. a support pad; 37. a reset member; 4. a limit part; 5. a valve flap; 6. swing arms; 7. and a supporting seat.

Description of the embodiments

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model. In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "upper surface", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1-4, an embodiment of the present utility model is provided: the rotary-opening stop valve comprises a valve body 1, wherein a swing arm 6 is rotatably installed on the valve body 1, and a valve clack 5 is arranged on the swing arm 6; a damper 3 is further arranged in the valve body 1; wherein the damper 3 comprises a tube 31, the interior of the tube 31 is filled with a non-Newtonian fluid, and the non-Newtonian fluid is sealed in the tube 31 by a piston 35; the surface of the piston 35 far away from the non-Newtonian fluid is abutted against the swing arm 6 through the ejector rod 32.

To sum up, when the swing arm 6 drops in the twinkling of an eye the in-process striking ejector pin 32, ejector pin 32 prevents at this moment that swing arm 6 drops under the effect of non-newton fluid, and then can avoid swing arm 6 to drop in the twinkling of an eye and lead to the impaired problem of valve clack 5, simultaneously when the impact force disappeared in the twinkling of an eye, non-newton fluid takes place to warp, be convenient for ejector pin 32 to the inside shrink of body 31, and then do not influence the closing of valve clack 5 again, have based on this, avoid valve clack 5 to close fast, prevent the emergence of water hammer phenomenon, protect valve clack 5, make it can not receive the destruction, especially, the structure is more retrencied when realizing above-mentioned function of this equipment.

Further, since the container 30 is further provided on the tube 31 and the container 30 is connected to the inside of the tube 31, the non-newtonian fluid can be forced to flow into the container 30 when the stem 32 is contracted.

In order to facilitate the installation of the piston 35, the end of the tube body 31 remote from the push rod 32 is further provided with a sealing cover 34, so that the piston 35 and the push rod 32 mounted on the piston 35 are inserted into the interior of the tube body 31 by disassembling the sealing cover 34.

On the basis of the scheme, the outer wall of the pipe body 31 is in threaded fit with the valve body 1 through threads, and the pipe body 31 is driven to be installed on the valve body 1 through the driving part 33, so that the damper 3 is convenient to assemble and disassemble, the damper 3 is convenient to install and replace, and the damper 3 is convenient to overhaul.

Further, since the inner wall of the valve body 1 is further provided with the limit part 4, and the side of the swing arm 6 facing the limit part 4 is further provided with the shock pad 2, the shock pad 2 can be used for contacting with the limit part 4, so that the problem that the swing arm 6 and the limit part 4 deform due to collision caused by direct contact of the swing arm 6 and the limit part 4 can be avoided, and meanwhile, the shock pad 2 can be used for reducing the sound generated when the swing arm 6 contacts with the limit part 4; among them, the shock pad 2 is preferably plastic.

Further, since the tube 31 is further provided with the reset member 37, the reset member 37 is utilized to facilitate the ejector rod 32 to reset, so that the ejector rod 32 extends out of the tube 31, and in order to ensure that the swing arm 6 contacts with the ejector rod 32 when being impacted next time, the phenomenon that the valve clack 5 contacts with the valve body 1 first is avoided; the restoring member 37 is preferably a spring, and the elastic force of the spring is smaller than the pressure of the swing arm 6, that is, when the swing arm 6 sags, the spring can be promoted to squeeze and contract, and when the pressure exerted by the swing arm disappears, the spring gently promotes the piston 35 to slide outwards.

Further, since the swing arm 6 is provided with the supporting seat 7 facing the top rod 32, and the top rod 32 is abutted against the supporting seat 7 through the supporting pad 36, the damage to the top rod 32 and the swing arm 6 caused by the impact can be reduced.

Furthermore, the shock pad 2, the supporting pad 36 and the supporting seat 7 are all cylindrical, and the shock pad 2, the supporting pad 36 and the supporting seat 7 are all made of rubber materials, so that noise generated during collision of the components can be reduced.

The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the utility model, and yet fall within the scope of the utility model.

Claims (8)

1. A swing stop valve which characterized in that: the valve comprises a valve body (1), wherein a swing arm (6) is rotatably installed on the valve body (1), and a valve clack (5) is arranged on the swing arm (6);

A damper (3) is further arranged in the valve body (1); the damper (3) comprises a pipe body (31), wherein the interior of the pipe body (31) is filled with non-Newtonian fluid, and the non-Newtonian fluid is sealed in the pipe body (31) through a piston (35) arranged;

One surface of the piston (35) far away from the non-Newtonian fluid is abutted against the swing arm (6) through a push rod (32) arranged on the surface.

2. A swing shut-off valve according to claim 1, wherein: the pipe body (31) is also provided with a container (30), and the container (30) is communicated with the inside of the pipe body (31).

3. A swing shut-off valve according to claim 2, wherein: one end of the pipe body (31) far away from the ejector rod (32) is also provided with a sealing cover (34).

4. A swing shut-off valve according to claim 1 or 2 or 3, wherein: the outer wall of the pipe body (31) is in threaded fit with the valve body (1) through threads, and the pipe body (31) is driven to be mounted on the valve body (1) through a driving part (33).

5. The swing shut-off valve according to claim 4, wherein: the inner wall of the valve body (1) is also provided with a limiting part (4), and one surface of the swing arm (6) facing the limiting part (4) is also provided with a shock pad (2).

6. The swing shut-off valve according to claim 5, wherein: a reset piece (37) is also arranged in the pipe body (31).

7. The swing shut-off valve according to claim 6, wherein: the swing arm (6) is provided with a supporting seat (7) facing one surface of the ejector rod (32), and the ejector rod (32) is abutted to the supporting seat (7) through a supporting pad (36).

8. The swing shut-off valve according to claim 7, wherein: the shock pad (2) with supporting pad (36) and with supporting seat (7) all set up cylindricly, just shock pad (2) supporting pad (36) and supporting seat (7) all adopt rubber material to make.