CN215172514U - Novel waterproof hammer type check valve - Google Patents
Novel waterproof hammer type check valve Download PDFInfo
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- CN215172514U CN215172514U CN202120502256.8U CN202120502256U CN215172514U CN 215172514 U CN215172514 U CN 215172514U CN 202120502256 U CN202120502256 U CN 202120502256U CN 215172514 U CN215172514 U CN 215172514U
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- heavy hammer
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Abstract
A novel water hammer prevention type check valve comprises a valve body, wherein a valve cavity is arranged in the valve body, a valve clack is arranged in the valve cavity, a valve rod is arranged on the valve body, a rocker is arranged on the valve clack, one end of the valve rod extends into the valve cavity and is connected with the rocker, a heavy hammer is arranged on one side of the valve body, one end of the valve rod extending out of the valve body is connected with the heavy hammer, a slow-closing auxiliary valve is arranged between the heavy hammer and the valve body, one end of the slow-closing auxiliary valve is connected with the valve body, a transmission shifting fork is arranged on the valve rod, and the other end of the slow-closing auxiliary valve is connected with the transmission shifting fork; when the medium flows reversely, the heavy hammer is assisted to close under the action of gravity, and when the medium is closed to a certain angle, the heavy hammer is in contact with the piston rod to force the piston to move downwards to compress hydraulic oil, so that the valve is slowly closed, the closing part is prevented from being impacted and damaged, and the closing time can be adjusted by the needle valve according to needs.
Description
Technical Field
The utility model relates to a pipe fitting processing equipment technical field, concretely relates to novel waterproof hammer check valve.
Background
The swing check valve is closed by the self weight of the valve clack and the force of medium backflow, and the closing time is about 0.5S approximately. Closing in such a short time, the reverse flow causes a sharp rise in the water pressure in the pipe, creating a water hammer. The pressure rise caused by water attack can reach thousands of times of the normal working pressure of the pipeline. In addition, negative pressure can occur in the pipe. The continuous fluctuating pressure can make the pipeline system strongly vibrate, generate noise and hammer sound, and cause accidents such as equipment and valve damage.
When the common swing check valve is closed, the medium backflow speed is rapidly reduced from maximum to zero, so that the internal pressure on one side of the pipeline water inlet pipe is rapidly increased, and a water hammer phenomenon which has a destructive effect on a pipeline system is generated, and the common caliber is DN 50-500. The water hammer damage effect generated by the large-diameter valve, particularly the high-pressure valve, is particularly obvious.
Disclosure of Invention
In view of this, the utility model provides a novel waterproof hammer check valve.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a novel water hammer prevention formula check valve, includes the valve body, set up the valve pocket in the valve body, set up the valve clack in the valve pocket, set up the valve rod on the valve body, set up the rocker on the valve clack, valve rod one end is stretched into the valve pocket and is connected with the rocker, valve body one side sets up the weight, the one end that the valve rod stretches out the valve body is connected with the weight, set up between weight and the valve body and slowly close the auxiliary valve, slowly close auxiliary valve one end and connect the valve body, set up the transmission shift fork on the valve rod, slowly close the auxiliary valve other end and be connected with the transmission shift fork.
Preferably, the slowly-closed auxiliary valve comprises a piston cylinder, a piston rod and a piston, the piston is arranged in the piston cylinder, one end of the piston rod extends into the piston cylinder to be connected with the piston, one end, far away from the piston, of the piston rod is provided with a transmission shifting fork connecting piece, and the transmission shifting fork connecting piece is connected with a transmission shifting fork.
Preferably, a transmission connecting groove is formed in the transmission shifting fork connecting piece, a connecting portion is formed in the transmission shifting fork, and the connecting portion is connected and matched with the transmission connecting groove.
Preferably, the heavy hammer comprises a heavy hammer head and a heavy hammer rod, one end of the heavy hammer rod is connected with the heavy hammer head, one end, far away from the heavy hammer head, of the heavy hammer rod is connected with the transmission shifting fork, and the heavy hammer rod is perpendicular to the transmission shifting fork.
Preferably, the slowly-closed auxiliary valve is of an external structure, and hydraulic oil is injected into the piston cylinder.
Preferably, a needle valve is arranged on one side of the auxiliary slow-closing valve and connected with the auxiliary slow-closing valve.
The beneficial effects of the utility model reside in that: the utility model adds the slowly-closed auxiliary valve, when the medium flows downstream, the main valve flap is opened to drive the auxiliary valve to move upwards; when the medium flows reversely, the heavy hammer is assisted to close under the action of gravity, and when the medium is closed to a certain angle, the heavy hammer is in contact with the piston rod to force the piston to move downwards to compress hydraulic oil, so that the valve is slowly closed, the closing part is prevented from being impacted and damaged, and the closing time can be adjusted by the needle valve according to needs.
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 structural view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a schematic view of the closed state of the present invention;
fig. 4 is a schematic view of the open state of the present invention.
Reference numerals:
1. the valve comprises a valve body, 2, a valve cavity, 3, a valve clack, 4, a valve rod, 5, a rocker, 6, a heavy hammer, 7, a slow-closing auxiliary valve, 8, a transmission shifting fork, 9, a piston rod, 10, a piston, 11, a needle valve, 12, a piston cylinder, 13, a transmission shifting fork connecting piece, 14, a transmission connecting groove, 15, a connecting part, 16, a heavy hammer head, 17 and a heavy hammer rod.
Detailed Description
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.
The invention will be further described with reference to the accompanying drawings.
The utility model provides a following technical scheme:
as shown in the accompanying drawings 1-4, the utility model discloses a novel waterproof hammer check valve, including valve body 1, set up valve pocket 2 in the valve body 1, set up valve clack 3 in the valve pocket 2, set up valve rod 4 on the valve body 1, set up rocker 5 on the valve clack 3, valve rod 4 one end is stretched into valve pocket 2 and is connected with rocker 5, 1 one side of valve body sets up weight 6, valve rod 4 stretches out the one end and the weight 6 of valve body 1 and is connected, set up slowly closed auxiliary valve 7 between weight 6 and the valve body 1, slowly close 7 one end connection valve body 1 of auxiliary valve, set up transmission shift fork 8 on the valve rod 4, slowly close the 7 other ends of auxiliary valve and be connected with transmission shift fork 8. Specifically, by additionally arranging the slow-closing auxiliary valve 7, when the medium flows downstream, the valve clack 3 is opened to drive the slow-closing auxiliary valve 7 to move upwards; when the medium flows reversely, the heavy hammer 6 is assisted to close under the action of gravity, and when the medium is closed to a certain angle, the heavy hammer is contacted with the piston rod 9 to force the piston 10 to move downwards to compress hydraulic oil, so that the valve is slowly closed, the impact damage of a closing part is avoided, and the closing time can be adjusted according to the requirement by the needle valve 11.
Furthermore, slowly close vice valve 7 including piston cylinder 12, piston rod 9 and piston 10, piston 10 sets up in piston cylinder 12, piston rod 9 one end stretches into piston cylinder 12 and is connected with piston 10, the one end that piston rod 9 kept away from piston 10 sets up transmission fork connecting piece 13, transmission fork connecting piece 13 is connected 8 with transmission fork 8.
Furthermore, a transmission connecting groove 14 is formed in the transmission fork connecting piece 13, a connecting portion 15 is formed in the transmission fork 8, and the connecting portion 15 is connected and matched with the transmission connecting groove 14.
Furthermore, the weight 6 comprises a heavy hammer head 16 and a heavy hammer rod 17, one end of the heavy hammer rod 17 is connected with the heavy hammer head 16, one end of the heavy hammer rod 17, which is far away from the heavy hammer head 16, is connected with the transmission shifting fork 8, and the heavy hammer rod 17 is perpendicular to the transmission shifting fork 8.
Furthermore, the slow-closing auxiliary valve 7 is of an external structure, and hydraulic oil is injected into the piston cylinder 12. Specifically, the piston cylinder 12 is filled with hydraulic oil, which is irrelevant to the medium state of the pipeline of the valve body 1 and can not be influenced by the medium pressure and temperature of the pipeline and the cleanness of the medium pipeline.
Furthermore, a needle valve 11 is arranged on one side of the slow-closing auxiliary valve 7, and the needle valve 11 is connected with the slow-closing auxiliary valve 7. Specifically, the opening and closing time can be freely controlled by providing the needle valve 11.
Specifically, the utility model discloses have fast and close two states slowly, close the state soon (weight 6 freely falls the hammer), close the state slowly (when transmission shift fork 8 withstood the actuating lever), furthest reduces the emergence of water hammer promptly, can reduce the impact of valve clack 3 to the disk seat again, increase of service life.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The utility model provides a novel water hammer prevention formula check valve, includes the valve body, set up the valve pocket in the valve body, set up the valve clack in the valve pocket, set up the valve rod on the valve body, set up the rocker on the valve clack, valve rod one end is stretched into the valve pocket and is connected its characterized in that with the rocker: the novel valve is characterized in that a heavy hammer is arranged on one side of the valve body, one end, extending out of the valve body, of the valve rod is connected with the heavy hammer, a slowly-closed auxiliary valve is arranged between the heavy hammer and the valve body, one end of the slowly-closed auxiliary valve is connected with the valve body, a transmission shifting fork is arranged on the valve rod, and the other end of the slowly-closed auxiliary valve is connected with the transmission shifting fork.
2. The new waterproof hammer type check valve according to claim 1, wherein: the slow-closing auxiliary valve comprises a piston cylinder, a piston rod and a piston, the piston is arranged in the piston cylinder, one end of the piston rod extends into the piston cylinder to be connected with the piston, one end, far away from the piston, of the piston rod is provided with a transmission shifting fork connecting piece, and the transmission shifting fork connecting piece is connected with a transmission shifting fork.
3. The new waterproof hammer type check valve according to claim 2, wherein: the transmission shifting fork connecting piece is provided with a transmission connecting groove, the transmission shifting fork is provided with a connecting part, and the connecting part is connected and matched with the transmission connecting groove.
4. The new waterproof hammer type check valve according to claim 1, wherein: the weight comprises a heavy hammer head and a heavy hammer rod, one end of the heavy hammer rod is connected with the heavy hammer head, one end, far away from the heavy hammer head, of the heavy hammer rod is connected with a transmission shifting fork, and the heavy hammer rod is perpendicular to the transmission shifting fork.
5. The new waterproof hammer type check valve according to claim 2, wherein: the slowly-closed auxiliary valve is of an external structure, and hydraulic oil is injected into the piston cylinder.
6. The new waterproof hammer type check valve according to claim 1, wherein: and a needle valve is arranged on one side of the slow-closing auxiliary valve and is connected with the slow-closing auxiliary valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120502256.8U CN215172514U (en) | 2021-03-10 | 2021-03-10 | Novel waterproof hammer type check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120502256.8U CN215172514U (en) | 2021-03-10 | 2021-03-10 | Novel waterproof hammer type check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215172514U true CN215172514U (en) | 2021-12-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120502256.8U Active CN215172514U (en) | 2021-03-10 | 2021-03-10 | Novel waterproof hammer type check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215172514U (en) |
-
2021
- 2021-03-10 CN CN202120502256.8U patent/CN215172514U/en active Active
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