CN218000533U

CN218000533U - Novel safety valve

Info

Publication number: CN218000533U
Application number: CN202220546825.3U
Authority: CN
Inventors: 袁永祥; 吴梵; 黄淑红; 单磊; ***; 王兆荣; 姜国庆
Original assignee: Weihai Bosheng Pneumatics & Hydraulics Co ltd
Current assignee: Weihai Bosheng Pneumatics & Hydraulics Co ltd
Priority date: 2022-03-14
Filing date: 2022-03-14
Publication date: 2022-12-09
Anticipated expiration: 2032-03-14

Abstract

The utility model relates to a relief valve technical field to a novel relief valve is proposed, which comprises a valve body, the inside joint of valve body has interior dust cover, the outside joint of valve body has the nut, the inside of valve body is provided with the spring holder, the top of spring holder is provided with the spring, it has the valve rod to peg graft at the top of spring, the flat pad has been cup jointed to the side of valve rod, the side of valve rod just is located the top joint of flat pad has the opening retaining ring. This novel safety valve, the check valve adopts plate structure design, and the design of plate structure can realize the installation and the dismantlement of check valve fast, make the quick replacement that can realize spare part when the check valve breaks down, the maintenance of being convenient for, and because the spare part cost of damage is far less than the cost of whole change check valve in the check valve, so cost of maintenance is low, the case adopts vulcanized rubber sealed, certain elasticity has at the check valve during operation, it is sealed respond well, and case sensitivity is high, the reliable operation.

Description

Novel safety valve

Technical Field

The utility model relates to a relief valve technical field specifically is a novel relief valve.

Background

The safety valve consists of a valve body, a nut and a valve core, wherein the valve body is in threaded connection with the nut, a nut sealing ring is arranged at the contact part of the nut and the end surface of the valve body, one end of a spring is inserted into the valve core, and the other end of the spring is abutted to the nut; the valve core is provided with a valve core sealing ring, in a standard motor train unit braking system, when the medium pressure in equipment or a pipeline is lower than a specified value, a safety valve is in a normally closed state, and when the medium pressure in the equipment or the pipeline is increased to exceed the specified value of the safety valve, the medium is discharged to the outside of the system to prevent the medium pressure in the pipeline or the special valve with the medium pressure exceeding the specified value, so that the safety of a pneumatic system is ensured.

The conventional one-way valve is not low-temperature resistant, is inconvenient to install and disassemble by adopting threaded connection, is high in maintenance cost, general in service life, single in connection mode and large in occupied space due to irregular installation of the appearance, and therefore the one-way valve which is low-temperature resistant, reliable in work, low in action sensitivity opening pressure, long in service life, convenient to maintain and produce, low in cost, easy to install by adopting plate-type connection and small in occupied space needs to be designed.

SUMMERY OF THE UTILITY MODEL

For solving above-mentioned check valve and not low temperature resistant, it is extremely inconvenient to adopt the threaded connection installation to dismantle, and cost of maintenance is higher, and life is general, and connected mode is single, and the big problem of the irregular installation occupation space of appearance is realized that resistant low temperature, reliable operation, action sensitivity are opened pressure and are hanged down, long service life, maintenance and production convenience, with low costs, adopt the board-like easy installation of connection, occupation space few purpose more than realizing, the utility model discloses a following technical scheme realizes: the utility model provides a novel safety valve, includes the valve body, the inside joint of valve body has interior dust cover, the outside joint of valve body has the nut, the inside of valve body is provided with the spring holder, the top of spring holder is provided with the spring, it has the valve rod to peg graft at the top of spring, the side of valve rod has cup jointed flat pad, the side of valve rod just is located the top joint of flat pad has the opening retaining ring, the side joint of valve body has the valve gap, the top of valve gap is provided with the upper cover, the side of upper cover is provided with the sealing washer, peg graft in the side of upper cover and have the elasticity cylindric lock, the bottom joint of elasticity cylindric lock has the protecting cover, the inside of valve gap is provided with adjusting nut, adjusting nut's top fixedly connected with lock nut, lock nut's inside meshing is connected with interior hexagonal holding screw, the bottom of valve rod is provided with the steel ball, the outside of steel ball is provided with new uide bushing, new uide bushing's bottom is provided with the case.

Further, the nut with threaded connection, clearance fit between the valve body adopt the sealing washer sealed.

Furthermore, clearance fit is adopted between the nut and the valve core, and the valve core slides in the nut matching hole.

Furthermore, the valve core is sealed by vulcanized low-temperature rubber and is reset by the spring.

Furthermore, one side of the valve body is provided with two air ports, one of the two air ports is an air inlet, the other one is an air outlet, and an air inlet flow channel is arranged in the valve body.

Furthermore, the valve body is installed in a plate mode, and a standard O-shaped rubber ring is used for sealing.

The utility model provides a novel safety valve. The method has the following beneficial effects:

1. this novel relief valve, check valve adopt plate-type structural design, and the installation and the dismantlement of check valve can be realized fast in plate-type structural design for can realize the quick replacement of spare part when the check valve breaks down, the maintenance of being convenient for, and because the spare part cost of damage is far less than the cost of whole change check valve in the check valve, so cost of maintenance is low.

2. This novel relief valve, case adopt vulcanized rubber to seal, have certain elasticity at check valve during operation, and sealed respond well, and case sensitivity is high, the reliable operation.

3. This novel relief valve, the case surface adopts surperficial stereoplasm oxidation treatment and copper nut clearance fit, can greatly increase the wear-resisting and corrosion resisting property on case surface through this kind of processing mode for whole case wear resistance is good, long service life.

Drawings

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

fig. 2 is the schematic cross-sectional view of the central axis of the structure chart 1 of the present invention.

In the figure: 1. a valve body; 2. an inner dust cover; 3. a nut; 4. a spring seat; 5. a valve cover; 6. a valve stem; 7. adjusting the nut; 8. a seal ring; 9. an upper cover; 10. a split washer; 11. an elastic cylindrical pin; 12. Flattening the cushion; 13. a protective cover; 14. a hexagon socket set screw; 15. locking the nut; 16. a spring; 17. a steel ball; 18. a new guide sleeve; 19. a valve core.

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 embodiment of the novel safety valve is as follows:

the embodiment is as follows:

referring to fig. 1-2, a novel safety valve comprises a valve body 1, two air ports are arranged on one side of the valve body 1, one of the air ports is an air inlet, the other is an air outlet, an air inlet channel is arranged inside the valve body 1, the valve body 1 is installed in a plate type, a standard O-shaped rubber ring is used for sealing, an inner dust cover 2 is clamped inside the valve body 1, a nut 3 is clamped outside the valve body 1, the nut 3 and the valve body 1 are in threaded connection and clearance fit and are sealed by a sealing ring 8, the nut 3 and a valve core 19 are in clearance fit, the valve core 19 slides in a matching hole of the nut 3, a spring seat 4 is arranged inside the valve body 1, a spring 16 is arranged at the top of the spring seat 4, a valve rod 6 is inserted at the top of the spring 16, and a flat gasket 12 is sleeved on the side surface of the valve rod 6, the side of valve rod 6 and the top joint that is located flat 12 of filling up have opening retaining ring 10, the side joint of valve body 1 has valve gap 5, the top of valve gap 5 is provided with upper cover 9, the side of upper cover 9 is provided with sealing washer 8, it has elasticity cylindric lock 11 to peg graft in the side of upper cover 9, the bottom joint of elasticity cylindric lock 11 has protecting cover 13, the inside of valve gap 5 is provided with adjusting nut 7, adjusting nut 7's top fixedly connected with lock nut 15, lock nut 15's inside meshing is connected with hexagon socket head cap holding screw 14, the bottom of valve rod 6 is provided with steel ball 17, the outside of steel ball 17 is provided with new uide bushing 18, the bottom of new uide bushing 18 is provided with case 19, case 19 adopts vulcanite low temperature rubber to seal, reset through spring 16.

The working principle is as follows: as shown in fig. 2, the utility model discloses the check valve, by valve body 1, nut 3 and case 19 are constituteed, valve body 1 adopts threaded connection with nut 3, nut 3 has nut 3 sealing washer 8 with 1 end face contact part of valve body, case 19 is inserted to spring 16's one end, the other end and 3 butts of nut, there is 19 sealing washers 8 of case on the case 19, reach when atmospheric pressure and be enough to overcome elasticity and frictional force and push up movement of case 19, and then make pneumatic check valve business turn over gas port intercommunication can realize the normal supply of admitting air, when the air inlet does not have atmospheric pressure, case 19 is under the combined action of spring 16 power and gas outlet, 19 sealing washers 8 of case and 1 valve port of valve body laminate mutually this moment, the check valve closes, the air inlet can not got back to the atmospheric pressure of check valve gas outlet, thereby guarantee that pneumatic system's pressure does not flow backwards, 19 surperficial hard anodic oxidation processes of case surface adoption, wear-resisting long service life.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A novel safety valve comprises a valve body (1), and is characterized in that: an inner dust cover (2) is clamped inside the valve body (1), a screw cap (3) is clamped outside the valve body (1), a spring seat (4) is arranged in the valve body (1), a spring (16) is arranged at the top of the spring seat (4), the top of the spring (16) is inserted with a valve rod (6), the side surface of the valve rod (6) is sleeved with a flat gasket (12), an opening check ring (10) is clamped on the side surface of the valve rod (6) and positioned above the flat gasket (12), the side surface of the valve body (1) is clamped with a valve cover (5), the top of the valve cover (5) is provided with an upper cover (9), a sealing ring (8) is arranged on the side surface of the upper cover (9), an elastic cylindrical pin (11) is inserted into the side surface of the upper cover (9), the bottom of the elastic cylindrical pin (11) is clamped with a protecting cover (13), an adjusting nut (7) is arranged inside the valve cover (5), the top of the adjusting nut (7) is fixedly connected with a locking nut (15), the inner part of the locking nut (15) is engaged and connected with an inner hexagon set screw (14), a steel ball (17) is arranged at the bottom of the valve rod (6), a new guide sleeve (18) is arranged at the outer side of the steel ball (17), and a valve core (19) is arranged at the bottom of the new guide sleeve (18).

2. A new safety valve according to claim 1, characterized in that: the screw cap (3) and the valve body (1) are in threaded connection and clearance fit, and are sealed by sealing rings.

3. A new safety valve according to claim 1, characterized in that: the nut (3) and the valve core (19) are in clearance fit, and the valve core (19) slides in a fit hole of the nut (3).

4. A new safety valve according to claim 1, characterized in that: the valve core (19) is sealed by vulcanized low-temperature rubber and is reset by the spring (16).

5. A new safety valve according to claim 1, characterized in that: two air ports are arranged on one side of the valve body (1), one of the air ports is an air inlet, the other air port is an air outlet, and an air inlet flow passage is arranged in the valve body (1).

6. A new safety valve according to claim 1, characterized in that: the valve body (1) is installed in a plate mode, and a standard O-shaped rubber ring seal is used.