CN216242538U - Novel outlet pressure constant pressure valve - Google Patents
Novel outlet pressure constant pressure valve Download PDFInfo
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- CN216242538U CN216242538U CN202123065602.XU CN202123065602U CN216242538U CN 216242538 U CN216242538 U CN 216242538U CN 202123065602 U CN202123065602 U CN 202123065602U CN 216242538 U CN216242538 U CN 216242538U
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Abstract
The utility model belongs to the field of application equipment of outlet pressure constant pressure valves, and particularly relates to a novel outlet pressure constant pressure valve which comprises a valve body, wherein a first air guide hole and a second air guide hole are symmetrically arranged in the valve body from left to right, an outlet lower valve cover is arranged at the upper end of the valve body, an outlet upper valve cover is arranged at the upper end of the outlet lower valve cover, a pressure control valve is arranged at the upper end of the outlet upper valve cover, a pilot valve guide rod is arranged at the joint between the outlet upper valve cover and the outlet lower valve cover, an air hole is formed in the outlet lower valve cover and communicated with the second air guide hole, an air inlet hole is formed in the outlet upper valve cover and communicated with the pilot valve guide rod, and a conducting hole is formed in the outlet lower valve cover and communicated with the interior of the valve body. The utility model can effectively realize the control of different outlet pressures, ensure the safety of the device in the using process so as to reduce the danger coefficient, prolong the service life of the device and improve the practicability of the product.
Description
Technical Field
The utility model belongs to the field of outlet pressure constant pressure valve application equipment, and particularly relates to a novel outlet pressure constant pressure valve.
Background
The valve is a device for stopping the medium fluid in the piping and the equipment and controlling the flow rate thereof. At present, a valve is a control part in a pipeline fluid conveying system, is used for changing the flow direction of a passage section and medium fluid, and has the functions of diversion, cut-off, throttling, non-return, flow splitting or overflow pressure relief and the like; for a refrigeration system, a valve is used for controlling the conveying work of medium gas fluid, and a valve commonly used in the refrigeration system, particularly a constant pressure valve is usually adopted at an outlet pressure, and the valve is mainly used for controlling the constant pressure of the medium gas fluid when the medium gas fluid flows out, so that the stability of equipment in the working process is ensured, the safety of the equipment is further ensured, and the personal and property safety of people is ensured.
In the prior art, a common constant pressure valve has a complex structure, so that the process of maintaining constant outlet pressure due to the change of the internal pressure of the valve is complex, the internal pressure of the valve is easily overhigh, and the pressure cannot be released in time, so that certain danger exists, and the safety performance of the device in the use process is difficult to ensure; in addition, the existing constant pressure valve is not stable in the process of regulating and controlling the outlet pressure, and the constant pressure valve is easy to damage due to sudden high and low pressure, so that the service life of the product is shortened, and the service quality is poor.
SUMMERY OF THE UTILITY MODEL
Aiming at the technical problems, the utility model provides the novel outlet pressure constant pressure valve which is reasonable in design, simple in structure, convenient to process and capable of effectively realizing control of different outlet pressures, improving the safety and convenience of the device in the using process, reducing the danger coefficient, prolonging the service life of the device and improving the use quality of products.
In order to achieve the purpose, the technical scheme adopted by the utility model is a novel outlet pressure constant pressure valve which comprises a valve body, wherein a first air guide hole and a second air guide hole are symmetrically arranged in the valve body from left to right, an outlet lower valve cover is arranged at the upper end of the valve body, an outlet upper valve cover is arranged at the upper end of the outlet lower valve cover, a pressure control valve is arranged at the upper end of the outlet upper valve cover, a pilot valve guide rod is arranged at the joint between the outlet upper valve cover and the outlet lower valve cover, an air hole is formed in the outlet lower valve cover and communicated with the second air guide hole, an air inlet hole is formed in the outlet upper valve cover and communicated with the pilot valve guide rod, and a conducting hole is formed in the outlet lower valve cover and communicated with the interior of the valve body.
Preferably, the first air guide hole is formed in the inner portion close to one side of the outlet of the valve body, the second air guide hole is formed in the inner portion close to one side of the inlet of the valve body, a spring is arranged in the pressure control valve, a piston is connected in the valve body in a sliding mode, a manual opening device is connected to the lower end in the valve body in a rotating mode, and a protective cap is arranged on the periphery of the manual opening device.
Preferably, the upper outlet valve cover and the lower outlet valve cover are designed in a split structure, the lower outlet valve cover is in threaded connection with the upper end of the valve body, the upper outlet valve cover is in threaded connection with the upper end of the lower outlet valve cover, the conducting hole is located on one side above the piston, and the upper end of the pilot valve guide rod is always in close contact connection with the lower end of the pressure control valve.
Compared with the prior art, the utility model has the advantages and positive effects that,
1. the novel outlet pressure constant pressure valve provided by the utility model has the advantages of reasonable design, simple structure and convenience in processing, can effectively realize control on different outlet pressures, improves the safety and convenience of the device in the using process, reduces the danger coefficient, prolongs the service life of the device and improves the use quality of products.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
FIG. 1 is a schematic structural diagram of a novel outlet pressure constant pressure valve;
FIG. 2 is an enlarged view of a portion of the structure at A in FIG. 1;
in the above figures, 1, a valve body; 2. a first air guide hole; 3. a second air guide hole; 4. an outlet lower valve cover; 5. an outlet upper valve cover; 6. a pressure control valve; 61. a spring; 7. a pilot valve guide; 8. a vent hole; 9. an air inlet; 10. a via hole; 11. a piston; 12. a manual opening device; 13. a protective cap.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.
In the embodiment, as shown in fig. 1 and 2, a novel outlet pressure constant pressure valve comprises a valve body 1, wherein a first air guide hole 2 and a second air guide hole 3 are symmetrically arranged in the valve body 1 from left to right, an outlet lower valve cover 4 is arranged at the upper end of the valve body 1, an outlet upper valve cover 5 is arranged at the upper end of the outlet lower valve cover 4, a pressure control valve 6 is arranged at the upper end of the outlet upper valve cover 5, a pilot valve guide rod 7 is arranged at the joint between the outlet upper valve cover 5 and the outlet lower valve cover 4, an air hole 8 is arranged in the outlet lower valve cover 4 and is communicated with the second air guide hole 3, an air inlet 9 is arranged in the outlet upper valve cover 5 and is communicated with the pilot valve guide rod 7, and a conducting hole 10 is also arranged in the outlet lower valve cover 4 and is communicated with the inside of the valve body 1; in the above process, a diaphragm is arranged in the lower end of the pressure control valve 6, the diaphragm can be always tightly attached to the upper end of the pilot valve guide rod 7 and can be stressed by the pressure of the spring 61, and is used for pushing the pilot valve guide rod 7 to move downwards, and the working principle is as follows: the spring 61 sets the required pressure according to the preset value, the medium enters from the inlet of the valve body 1, at this time, because the outlet pressure of the valve body 1 is lower than the pressure set by the spring, the spring 61 presses the membrane in the pressure control valve 6 and presses the pilot valve guide rod 7 to move downwards, the pilot valve guide rod 7 moves downwards to open the air inlet hole 9 of the upper valve cover 5 of the outlet, the medium enters into the lower valve cover 4 of the outlet through the second air guide hole 3 and the vent hole 8, and enters into the upper valve cover 5 of the outlet from the lower part of the pilot valve guide rod 7, flows to the via hole 10 through the air inlet hole 9, the air source enters into the upper part of the piston 11 through the lower valve cover 4 of the outlet, the piston 11 is pushed to move downwards, thereby the valve clack valve port is opened, the inlet medium flows out to the outlet of the valve body 1 through the pilot valve clack, when the outlet pressure rises to the set pressure, the pilot valve guide rod 7 and the pressure control valve 6 are balanced with the valve clack assembly, the constant outlet pressure is maintained, and the control of the outlet pressure is realized; when the outlet pressure is higher than the set value of the spring 61, a medium enters through the first air guide hole 2, flows upwards and enters into the upper valve cover of the outlet, simultaneously pushes the membrane to move upwards and drives the pilot valve guide rod 7 to move upwards, so that the ventilation quantity entering the piston 11 is adjusted to reduce the opening degree of the pilot valve guide rod in the valve body 1, the outlet pressure is reduced until the outlet pressure reaches the set value, and the outlet pressure is kept constant; when the valve body 1 needs to be closed, the same working principle that the outlet pressure value is greater than the set pressure value of the spring 61 is adopted, and the difference lies in that: after the medium enters from the first gas vent 2, the pilot valve guide rod 7 needs to be driven to move upwards until the valve body is closed, at the moment, the piston 11 and the pilot valve clack assembly move upwards under the action of the auxiliary valve at the lower part in the valve body 11 until the upper end of the piston 11 is contacted with the lower valve cover 4 of the outlet, the pilot valve clack assembly is also closed, and then the valve body 1 finishes the closing work; this device reasonable in design, simple structure, processing convenience just can effectively realize the convenient control to different outlet pressure to security and convenience in the hoisting device equipment use have reduced danger coefficient, the life of extension device and improvement product quality of use.
In order to improve the reasonability of the design of the device, the first air guide hole 2 is arranged in the inner part close to one side of the outlet of the valve body 1, the second air guide hole 3 is arranged in the inner part close to one side of the inlet of the valve body 1, and the first air guide hole 2 and the second air guide hole 3 are arranged in the valve body 1, so that the stability of the valve body 1 in the using process is effectively improved, the protectiveness of the valve body 1 in the using process is enhanced, the valve body 1 is not easily damaged, the service life of the device is effectively prolonged, and the economic cost is saved; in order to enable the valve body 1 to be used smoothly, a spring 61 is arranged in the pressure control valve 6, and the spring 61 is used for setting the outlet pressure value of the valve so as to improve the safety performance of the valve in the using process and ensure the outlet pressure to be constant; a piston 11 is connected in the valve body 1 in a sliding manner and is used for driving the valve clack assembly of the pilot valve in the valve body 1 to open and close so as to provide convenient conditions for the circulation of a medium air source; in order to promote the practicality when valve body 1 uses, lower extreme in the valve body 1 rotates and is connected with manual opening device 12, manual opening device 12 periphery is provided with helmet 13, helmet 13 is the design of V type, and its salient threaded connection is in the manual opening device 12 periphery of 1 lower extreme of valve body, make manual opening device 12 set up inside the depressed part of helmet 13, can manually open the constant pressure valve through manual opening device 12 is manual, effectively protect manual opening device 12 through helmet 13, in order to guarantee manual opening device 12's quality of use.
In order to make the installation process of the valve body 1 more convenient, the outlet upper valve cover 5 and the outlet lower valve cover 4 adopt a split structure design, in order to improve the convenience in the installation process of the device and facilitate the assembly of equipment, the outlet lower valve cover 4 is in threaded connection with the upper end of the valve body 1, the outlet upper valve cover 5 is in threaded connection with the upper end of the outlet lower valve cover 4, and the conducting hole 10 is positioned on one side above the piston 11; in order to realize convenient control of outlet pressure, the upper end of the pilot valve guide rod 7 is always in close connection with the lower end of the pressure control valve 6, specifically, the upper end of the pilot valve guide rod 7 is always in close connection with a diaphragm below the inner part of the pressure control valve 6, the spring 61 sets required pressure according to a preset value, and when the outlet pressure is lower than the set pressure of the spring, the spring 61 in the pressure control valve 6 can press the pilot valve guide rod 7 downwards to move downwards and drive the piston 11 to move downwards so as to realize opening of a valve port of a pilot valve clack; when the outlet pressure is higher than the pressure set by the spring, the membrane is pushed to move upwards and drive the guide valve guide rod 7 to move upwards under the action of the medium in the valve body 1, so that the valve opening of the guide valve clack is closed.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.
Claims (3)
1. The utility model provides a novel outlet pressure constant pressure valve, includes the valve body, its characterized in that, the inside bilateral symmetry of valve body be provided with first air guide hole and second air guide hole, valve body upper end be provided with under the export valve gap, the export under the upper end of valve gap be provided with export upper valve gap, the export upper valve gap the upper end be provided with pressure control valve, export upper valve gap and export under the junction between the valve gap be provided with the pilot valve guide arm, export under the valve gap be provided with the air vent and be linked together with second air guide hole, export upper valve gap in be provided with the inlet port and link up mutually with the pilot valve guide arm, export under the valve gap in still be provided with the conducting hole and link up mutually with the valve body is inside.
2. The novel outlet pressure constant pressure valve according to claim 1, wherein the first air guide hole is arranged inside one side close to the outlet of the valve body, the second air guide hole is arranged inside one side close to the inlet of the valve body, a spring is arranged in the pressure control valve, a piston is connected in the valve body in a sliding mode, a manual opening device is connected to the lower end in the valve body in a rotating mode, and a protective cap is arranged on the periphery of the manual opening device.
3. The novel outlet pressure constant pressure valve as claimed in claim 2, wherein the outlet upper valve cover and the outlet lower valve cover are designed to be separated, the outlet lower valve cover is in threaded connection with the upper end of the valve body, the outlet upper valve cover is in threaded connection with the upper end of the outlet lower valve cover, the conducting hole is located on one side above the piston, and the upper end of the pilot valve guide rod is always in close contact with and connected with the lower end of the pressure control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123065602.XU CN216242538U (en) | 2021-12-08 | 2021-12-08 | Novel outlet pressure constant pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123065602.XU CN216242538U (en) | 2021-12-08 | 2021-12-08 | Novel outlet pressure constant pressure valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216242538U true CN216242538U (en) | 2022-04-08 |
Family
ID=80962724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123065602.XU Active CN216242538U (en) | 2021-12-08 | 2021-12-08 | Novel outlet pressure constant pressure valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216242538U (en) |
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2021
- 2021-12-08 CN CN202123065602.XU patent/CN216242538U/en active Active
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