CN215184405U

CN215184405U - Safety valve of storage battery

Info

Publication number: CN215184405U
Application number: CN202121569637.4U
Authority: CN
Inventors: 刘全胜
Original assignee: Chongqing Shenchi Battery Co ltd
Current assignee: Chongqing Shenchi Battery Co ltd
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2021-12-14
Anticipated expiration: 2031-07-12

Abstract

The utility model discloses a battery safety valve, including valve body, piston cap and upper cover plate, valve body upper end joint has the upper cover plate, be provided with the piston hole on the bottom central point puts in the valve body, the piston hole upper end is provided with the piston, the piston up end is provided with the piston cap, the sealed lid of piston cap up end fixedly connected with, sealed lid up end fixedly connected with fixed column, fixed column top fixedly connected with board that resets, it is provided with complementary unit to reset the board top. The utility model discloses in, and through reset spring's elastic force effect, when the specified value is fallen to in the pressure of battery for the speed that moves down of piston cap, so can avoid in the unnecessary air admission valve body, the effectual battery that prevents explodes, factor of safety is high.

Description

Safety valve of storage battery

Technical Field

The utility model relates to a battery equipment field specifically is a battery relief valve.

Background

The safety valve is one of the key components of the battery, located at the top of the battery. It functions in four ways: (1) and the safety function is that when the pressure of the storage battery generated in the use process of the storage battery reaches the pressure of the safety valve, the valve is opened to release the pressure so as to prevent the pressure from being generated. (2) The sealing function is as follows: when the internal pressure of the storage battery is lower than the valve closing pressure of the safety valve, the safety valve is closed, internal mist is prevented from leaking, and air is prevented from entering the storage battery and causing adverse effects. (3) Ensuring normal internal pressure of the battery, promoting oxygen mixing in the battery, and reducing moisture loss. (4) Explosion-proof, some relief valves are equipped with acid-resistant rupture disks.

When the gas stock in the piston hole of the existing safety valve is large, flame can be generated and spread to the inside of the battery, thereby causing the explosion of the battery.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a battery relief valve to solve the great problem of gas stock in the relief valve piston hole.

In order to achieve the above object, the utility model provides a following technical scheme:

the safety valve for the storage battery comprises a valve body, a piston cover and an upper cover plate, wherein the upper cover plate is connected to the upper end of the valve body in a clamped mode, a piston hole is formed in the center of the bottom in the valve body, the piston is arranged at the upper end of the piston hole, the piston cover is arranged on the upper end face of the piston, a sealing cover body is fixedly connected to the upper end face of the piston cover, a fixed column is fixedly connected to the upper end face of the sealing cover body, a reset plate is fixedly connected to the top end of the fixed column, and an auxiliary mechanism is arranged above the reset plate.

Further, the auxiliary mechanism comprises positioning rods, a reset spring and a transverse plate, the transverse plate is fixedly connected to the top in the valve body, the two positioning rods are fixedly connected to the lower end face of the transverse plate, the two positioning rods are slidably connected to the outer sides of the positioning rods, and the reset spring is arranged between the reset plate and the transverse plate.

Furthermore, reset spring is around locating the locating lever surface, the slow top of bullet that resets and diaphragm lower terminal surface fixed connection, reset spring bottom and the board up end fixed connection that resets.

Furthermore, one end of the positioning rod, which is far away from the transverse plate, is fixedly connected with an anti-falling block.

Furthermore, a sealing ring is arranged on the lower end face of the upper cover plate.

Further, the transverse plate is arranged to be in a rectangular structure.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses in, the inboard vertical cavity that has been provided with of valve body, and the cavity bottom is connected with the piston hole, play the unobstructed effect of exhaust jointly, when pressure in the battery rises to the limiting value, open the upper cover plate, the piston passes through pressure rebound, so open the piston lid, and when the pressure of battery descends to the specified value, the piston can automatic decline closes the piston lid, and the elastic force effect through reset spring, when the pressure of battery descends to the specified value, accelerate the speed that moves down of piston lid, so can avoid in the unnecessary air admission valve body, effectually prevent battery explosion, factor of safety is high.

Drawings

FIG. 1 is a schematic sectional front view of a safety valve of a battery;

fig. 2 is a partially enlarged view of a portion a in fig. 1.

In the figure: 10. a valve body; 11. a piston bore; 12. a piston; 13. a piston cap; 14. sealing the cover body; 15. fixing a column; 16. a reset plate; 17. a return spring; 18. positioning a rod; 19. a transverse plate; 20. and an upper cover plate.

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.

Referring to fig. 1-2, the present invention provides a technical solution:

the utility model provides a battery safety valve, includes valve body 10, piston 12, piston lid 13 and upper cover plate 20, and valve body 10 upper end joint has upper cover plate 20, is provided with piston hole 11 in the valve body 10 on the bottom central point puts, and piston hole 11 upper end is provided with piston 12.

Wherein the piston 12 slides up and down in the piston hole 11.

The upper end surface of the piston 12 is provided with a piston cover 13,

as shown in fig. 1, the piston cap 13 is adapted to the inner wall of the valve body 10, and when the safety valve does not work, a closed space is formed between the piston cap 13 and the valve body 10.

The upper end surface of the piston cover 13 is fixedly connected with a sealing cover body 14.

Wherein, the sealing cover body 14 is a T-shaped structure, and the bottom end of the sealing cover body 14 is welded and fixed with the upper end surface of the piston cover 13.

Fixed column 15 is welded and fixed to the up end of gland bonnet body 14, and fixed column 15 top welded and fixed has the board 16 that resets, resets and is provided with complementary unit above the board 16.

In addition, complementary unit includes locating lever 18, reset spring 17 and diaphragm 19, and horizontal fixedly connected with diaphragm 19 on the top in the valve body 10, wherein, diaphragm 19 both ends all with valve body 10 inner wall welded fastening, terminal surface welded fastening has two locating levers 18 under the diaphragm 19, and two locating levers 18 outside sliding connection have reset plate 16, are provided with reset spring 17 between reset plate 16 and the diaphragm 19.

Reset spring 17 is around locating the outer surface of locating lever 18, and the top of the bullet that resets is welded fastening under with diaphragm 19, and reset spring 17 bottom and reset plate 16 up end welded fastening.

One end of the positioning rod 18 far away from the transverse plate 19 is fixedly connected with an anti-drop block.

The lower end surface of the upper cover plate 20 is provided with a sealing ring.

The cross plate 19 is provided in a rectangular configuration.

The working principle is as follows: at first the inboard cavity that is vertically provided with of valve body 10, and the cavity bottom is connected with piston hole 11, play the unobstructed effect of exhaust jointly, when pressure in the battery rises to the limit value, open upper cover plate 20, piston 12 passes through pressure rebound, so open piston cover 13, and when the pressure of battery drops to the specified value, piston 12 can automatic fall and close piston cover 13, and through reset spring 17's elastic force effect, when the pressure of battery drops to the specified value, accelerate piston cover 13's the speed that moves down, avoid unnecessary air to get into in the valve body 10, so can avoid unnecessary air to get into in the valve body 10.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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. The safety valve for the storage battery comprises a valve body (10), a piston (12), a piston cover (13) and an upper cover plate (20), wherein the upper cover plate (20) is clamped at the upper end of the valve body (10), a piston hole (11) is formed in the central position of the bottom in the valve body (10), the piston (12) is arranged at the upper end of the piston hole (11), the piston cover (13) is arranged on the upper end face of the piston (12), a sealing cover body (14) is fixedly connected to the upper end face of the piston cover (13), and a fixing column (15) is fixedly connected to the upper end face of the sealing cover body (14), and is characterized in that: the top end of the fixing column (15) is fixedly connected with a reset plate (16), and an auxiliary mechanism is arranged above the reset plate (16).

2. A battery safety valve according to claim 1, wherein: the auxiliary mechanism comprises positioning rods (18), a return spring (17) and a transverse plate (19), the transverse fixed connection is arranged on the top in the valve body (10), the two positioning rods (18) are fixedly connected to the lower end face of the transverse plate (19), the outer sides of the two positioning rods (18) are slidably connected with a return plate (16), and the return spring (17) is arranged between the return plate (16) and the transverse plate (19).

3. A battery safety valve according to claim 2, wherein: reset spring (17) are around locating the locating lever surface, the bullet that resets is slowly top and diaphragm lower terminal surface fixed connection, reset spring (17) bottom and reset plate (16) up end fixed connection.

4. A battery safety valve according to claim 2, wherein: one end of the positioning rod (18) far away from the transverse plate (19) is fixedly connected with an anti-drop block.

5. A battery safety valve according to claim 1, wherein: and a sealing ring is arranged on the lower end surface of the upper cover plate (20).

6. A battery safety valve according to claim 2, wherein: the transverse plate (19) is arranged to be of a rectangular structure.