CN218913875U - Pressure relief valve for overpressure protection of hydraulic system - Google Patents
Pressure relief valve for overpressure protection of hydraulic system Download PDFInfo
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- CN218913875U CN218913875U CN202222306894.XU CN202222306894U CN218913875U CN 218913875 U CN218913875 U CN 218913875U CN 202222306894 U CN202222306894 U CN 202222306894U CN 218913875 U CN218913875 U CN 218913875U
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Abstract
The utility model discloses a pressure relief valve for overpressure protection of a hydraulic system, which comprises a relief valve main body and a protection mechanism; the protection mechanism is detachably arranged on the release valve main body and is used for protecting the release valve main body; the release valve body comprises a valve body, an upper valve cover and a lower valve cover, wherein the upper valve cover and the lower valve cover are matched with the valve body, and the upper valve cover and the lower valve cover are respectively arranged at two ends of the release valve body. According to the pressure release valve for the overpressure protection of the hydraulic system, the release valve main body and the protection mechanism are arranged, the stop valve and the rupture disk are arranged on the release valve main body through the high-pressure pipeline, and the liquid outlet of the high-pressure pipeline is communicated with the liquid inlet cavity of the piston cylinder, so that the pressure set value of the opening of the release valve main body is determined by the bursting pressure of the rupture disk, the pressure release valve is more accurate and stable than the existing high-load spring in the market, the use of people is facilitated, and the applicability of the pressure release valve is improved.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a pressure release valve for overpressure protection of a hydraulic system.
Background
The valve is a pipeline accessory for opening and closing a pipeline, controlling the flow direction, adjusting and controlling the parameters of the conveying medium. Depending on their function, they can be classified into shutoff valves, check valves, regulating valves, etc. The valve is a control component in the fluid conveying system and has the functions of stopping, adjusting, guiding, preventing backflow, stabilizing pressure, diverting or overflow pressure relief and the like. Valves for fluid control systems range from the simplest shut-off valves to the various valves used in extremely complex automatic control systems, which are quite diverse in variety and specification.
The existing pressure release valve has certain disadvantages when in use, the existing pressure release valve is usually communicated with a hydraulic system when in use, overpressure protection pieces of the hydraulic system in the current market are generally overflow valves and safety valves, spring force is used as pretightening force for the two valves, the existing pressure release valve has certain instability under high-pressure working conditions, the pressure setting value of the pressure release valve is not easy to adjust, and the demands of people cannot be met.
For this purpose, we propose a pressure relief valve for overpressure protection of a hydraulic system.
Disclosure of Invention
The utility model mainly aims to provide a pressure relief valve for overpressure protection of a hydraulic system, which can effectively solve the problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
a pressure relief valve for overpressure protection of a hydraulic system comprises a relief valve body and a protection mechanism; the protection mechanism is detachably arranged on the release valve main body and is used for protecting the release valve main body; the release valve body comprises a valve body, an upper valve cover and a lower valve cover, wherein the upper valve cover and the lower valve cover are matched with the valve body, and the upper valve cover and the lower valve cover are respectively arranged at two ends of the release valve body; the protection mechanism comprises a high-pressure pipeline with two ends respectively installed on the valve body and the lower valve cover, and a stop valve and a rupture disk which are sequentially installed on the high-pressure pipeline from left to right.
Preferably, one end of the lower valve cover is communicated with the hydraulic system, the valve body is provided with a piston cylinder, a liquid inlet of the high-pressure pipeline is communicated with the hydraulic system, and a liquid outlet of the high-pressure pipeline is communicated with a liquid inlet cavity of the piston cylinder.
Preferably, the release valve main body further comprises a valve sleeve arranged in a cavity at the left side of the valve body and a ball body matched and connected with the valve sleeve, two ends of the ball body are provided with shafts and arranged in notches of the valve sleeve, the lower valve cover is used for mounting the valve sleeve on the valve body, and the upper valve cover is in threaded connection with the valve body.
Preferably, the release valve main body further comprises a claw and a sealing sleeve, wherein the claw and the sealing sleeve are arranged in the valve body, the claw of the claw is clamped in the notch of the sphere, and the shaft shoulder of the claw is clamped in the notch of the sealing sleeve.
Preferably, the release valve main body further comprises a mandrel installed inside the valve body, the sealing sleeve is in threaded connection with the mandrel, so that the mandrel can drive the sealing sleeve to synchronously move when moving along the center of the flow channel, and a piston is installed at a cavity on the right side of the valve body by the mandrel.
Preferably, nonmetallic sealing elements are arranged in the inner holes of the piston and the valve body, between the piston and the mandrel and in the inner holes of the mandrel and the valve body.
Preferably, the release valve main body further comprises a gland and a cushion block, wherein the gland and the cushion block are arranged at one end of the valve body, which is close to the lower valve cover, and the gland presses the cushion block and the lower valve cover to fixedly install the valve sleeve on a step of a cavity at the left side of the valve body.
Preferably, the release valve main body further comprises a plurality of groups of spring pins and a plurality of groups of steel balls, and the upper valve cover is provided with a plurality of groups of threaded holes for installing the spring pins, so that the spring pins extrude and fix the steel balls in the notch of the outer circle of the mandrel, and the mandrel is extruded by the steel balls to push the sealing sleeve to move leftwards and compress the ball body to form a metal sealing surface.
Preferably, the rupture disc bursts when the hydraulic system is over-pressurized, allowing fluid to enter the piston cylinder via the high pressure line and push the piston to the right.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, the release valve main body and the protection mechanism are arranged, the stop valve and the rupture disk are arranged on the release valve main body through the high-pressure pipeline, and the liquid outlet of the high-pressure pipeline is communicated with the liquid inlet cavity of the piston cylinder, so that the pressure set value of the opening of the release valve main body is determined by the bursting pressure of the rupture disk, the release valve is more accurate and stable compared with the existing high-load spring in the market, the use of people is facilitated, and the applicability of the pressure release valve is improved.
Drawings
Fig. 1 is an overall construction diagram of a pressure relief valve for overpressure protection of a hydraulic system according to the present utility model.
Fig. 2 is a partial construction diagram of a ball, a claw and a sealing sleeve in a pressure relief valve for overpressure protection of a hydraulic system according to the present utility model.
In the figure: 1. a lower valve cover; 2. a sphere; 3. a valve sleeve; 4. a claw; 5. sealing sleeve; 6. a mandrel; 7. a piston; 8. a gland; 9. a cushion block; 10. a valve body; 11. an upper valve cover; 12. a spring pin; 13. steel balls; 14. a stop valve; 15. rupture disk; 16. high pressure pipeline.
Detailed Description
The utility model further provides a specific embodiment of the pressure relief valve for overpressure protection of a hydraulic system, and the specific embodiment of the pressure relief valve for overpressure protection of the hydraulic system can effectively solve the problems in the background art.
The pressure relief valve for overpressure protection of a hydraulic system of the present utility model is not limited to the description of the following embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the term "comprise" or variations thereof such as "comprises" or "comprising", etc. will be understood to include the stated element or component without excluding other elements or components.
Example 1
Referring to fig. 1-2, a pressure relief valve for overpressure protection of a hydraulic system includes a relief valve body and a protection mechanism; the protection mechanism is detachably arranged on the release valve main body and is used for protecting the release valve main body; the release valve body comprises a valve body 10, an upper valve cover 11 and a lower valve cover 1 which are matched with the valve body 10, wherein the upper valve cover 11 and the lower valve cover 1 are respectively arranged at two ends of the release valve body; the protection mechanism comprises a high-pressure pipeline 16 with two ends respectively arranged on the valve body 10 and the lower valve cover 1, and a stop valve 14 and a rupture disk 15 which are arranged on the high-pressure pipeline 16 in sequence from left to right.
One end of the lower valve cover 1 is communicated with a hydraulic system, a piston cylinder is arranged on the valve body 10, a liquid inlet of the high-pressure pipeline 16 is communicated with the hydraulic system, and a liquid outlet of the high-pressure pipeline 16 is communicated with a liquid inlet cavity of the piston cylinder.
The release valve main body further comprises a valve sleeve 3 arranged in a cavity on the left side of the valve body 10 and a ball body 2 which is matched and connected with the valve sleeve 3, two ends of the ball body 2 are arranged in a notch of the valve sleeve 3 with shafts, the lower valve cover 1 is used for mounting the valve sleeve 3 on the valve body 10, and the upper valve cover 11 is in threaded connection with the valve body 10.
The release valve main body further comprises a claw 4 and a sealing sleeve 5 which are arranged in the valve body 10, the claw of the claw 4 is clamped in the notch of the ball body 2, and the shaft shoulder of the claw 4 is clamped in the notch of the sealing sleeve 5.
The release valve main body further comprises a mandrel 6 arranged in the valve body 10, the sealing sleeve 5 is in threaded connection with the mandrel 6, so that the mandrel 6 can drive the sealing sleeve 5 to synchronously move when moving along the center of the flow channel, and a piston 7 is arranged at the cavity of the right side of the valve body 10 on the mandrel 6.
Nonmetallic sealing elements are arranged in the inner holes of the piston 7 and the valve body 10, between the piston 7 and the mandrel 6 and in the inner holes of the mandrel 6 and the valve body 10.
The release valve main body further comprises a gland 8 and a cushion block 9 which are arranged at one end of the valve body 10 close to the lower valve cover 1, the gland 8 presses the cushion block 9 and the lower valve cover 1, and the valve sleeve 3 is fixedly arranged on a step of a cavity at the left side of the valve body 10.
The release valve main body further comprises a plurality of groups of spring pins 12 and a plurality of groups of steel balls 13, and the upper valve cover 11 is provided with a plurality of groups of threaded holes for installing the spring pins 12, so that the spring pins 12 press and fix the steel balls 13 in a notch on the outer circle of the mandrel 6, and the mandrel 6 is pressed by the steel balls 13 to push the sealing sleeve 5 to move leftwards and press the ball body 2 to form a metal sealing surface.
The rupture disk 15 bursts when the hydraulic system is over-pressurized, so that fluid enters the piston cylinder via the high pressure line 16 and pushes the piston 7 to the right.
It should be noted that the present utility model relates to a pressure relief valve for protecting an overpressure of a hydraulic system, and when the pressure relief valve is used:
fluid enters the left cavity of the valve body 10 through the lower valve cover 1, enters the high-pressure pipeline 16 through the liquid inlet of the high-pressure pipeline 16, and sequentially passes through the stop valve 14 and the rupture disk 15, when the rupture disk 15 bursts when the hydraulic system is in overpressure, the fluid enters the piston cylinder through the high-pressure pipeline 16 and pushes the piston 7 to move rightwards, so that the pressure set value for opening the release valve body is determined by the burst pressure of the rupture disk 15, the pressure set value of the release valve body is convenient to adjust, and the use of people is convenient.
According to the utility model, through the release valve main body and the protection mechanism, the stop valve 14 and the rupture disk 15 are arranged on the release valve main body through the high-pressure pipeline 16, and the liquid outlet of the high-pressure pipeline 16 is communicated with the liquid inlet cavity of the piston cylinder, so that the pressure set value of the release valve main body opening is determined by the bursting pressure of the rupture disk 15, the release valve is more accurate and stable compared with the existing high-load spring in the market, the use of people is facilitated, and the applicability of the pressure release valve is improved.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (9)
1. A pressure relief valve for overpressure protection of a hydraulic system, comprising:
a release valve body;
the protection mechanism is detachably arranged on the release valve main body and is used for protecting the release valve main body;
the release valve comprises a release valve body (10), and an upper valve cover (11) and a lower valve cover (1) which are matched with the valve body (10), wherein the upper valve cover (11) and the lower valve cover (1) are respectively arranged at two ends of the release valve body;
the protection mechanism comprises a high-pressure pipeline (16) with two ends respectively installed on the valve body (10) and the lower valve cover (1), and a stop valve (14) and a rupture disk (15) which are sequentially installed on the high-pressure pipeline (16) from left to right.
2. The pressure relief valve for overpressure protection of a hydraulic system as set forth in claim 1, wherein: one end of the lower valve cover (1) is communicated with a hydraulic system, a piston cylinder is arranged on the valve body (10), a liquid inlet of the high-pressure pipeline (16) is communicated with the hydraulic system, and a liquid outlet of the high-pressure pipeline (16) is communicated with a liquid inlet cavity of the piston cylinder.
3. A pressure relief valve for overpressure protection of a hydraulic system as set forth in claim 2, wherein: the release valve body further comprises a valve sleeve (3) arranged in a cavity on the left side of the valve body (10) and a ball body (2) which is connected with the valve sleeve (3) in a matching mode, two ends of the ball body (2) are arranged in a notch of the valve sleeve (3) with shafts, the valve sleeve (3) is arranged on the valve body (10) by the aid of the lower valve cover (1), and the upper valve cover (11) is in threaded connection with the valve body (10).
4. A pressure relief valve for hydraulic system overpressure protection as set forth in claim 3, wherein: the release valve body further comprises a claw (4) and a sealing sleeve (5) which are arranged in the valve body (10), the claw of the claw (4) is clamped in the notch of the sphere (2), and the shaft shoulder of the claw (4) is clamped in the notch of the sealing sleeve (5).
5. The pressure relief valve for hydraulic system overpressure protection as set forth in claim 4, wherein: the release valve main body further comprises a mandrel (6) arranged in the valve body (10), the sealing sleeve (5) is in threaded connection with the mandrel (6), so that the mandrel (6) can drive the sealing sleeve (5) to synchronously move when moving along the center of the flow channel, and a piston (7) is arranged at the cavity on the right side of the valve body (10) in the mandrel (6).
6. The pressure relief valve for hydraulic system overpressure protection as set forth in claim 5, wherein: nonmetallic sealing elements are arranged in the inner holes of the piston (7) and the valve body (10), between the piston (7) and the mandrel (6) and in the inner holes of the mandrel (6) and the valve body (10).
7. The pressure relief valve for hydraulic system overpressure protection as set forth in claim 6, wherein: the release valve main body further comprises a gland (8) and a cushion block (9) which are arranged on the valve body (10) and close to one end of the lower valve cover (1), the gland (8) extrudes the cushion block (9) and the lower valve cover (1), and the valve sleeve (3) is fixedly arranged on a step of a cavity on the left side of the valve body (10).
8. The pressure relief valve for hydraulic system overpressure protection as set forth in claim 6, wherein: the release valve main body further comprises a plurality of groups of spring pins (12) and a plurality of groups of steel balls (13), a plurality of groups of threaded holes for installing the spring pins (12) are formed in the upper valve cover (11), the spring pins (12) extrude and fix the steel balls (13) in a notch of the outer circle of the mandrel (6), and the mandrel (6) is extruded by the steel balls (13) to push the sealing sleeve (5) to move leftwards and compress the ball body (2) to form a metal sealing surface.
9. The pressure relief valve for hydraulic system overpressure protection as set forth in claim 6, wherein: the rupture disk (15) bursts when the hydraulic system is over-pressurized, so that fluid enters the piston cylinder via the high-pressure line (16) and pushes the piston (7) to the right.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222306894.XU CN218913875U (en) | 2022-08-30 | 2022-08-30 | Pressure relief valve for overpressure protection of hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222306894.XU CN218913875U (en) | 2022-08-30 | 2022-08-30 | Pressure relief valve for overpressure protection of hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218913875U true CN218913875U (en) | 2023-04-25 |
Family
ID=86039818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222306894.XU Active CN218913875U (en) | 2022-08-30 | 2022-08-30 | Pressure relief valve for overpressure protection of hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218913875U (en) |
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2022
- 2022-08-30 CN CN202222306894.XU patent/CN218913875U/en active Active
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