CN212967938U

CN212967938U - Safety valve structure for valve-controlled lead-acid storage battery

Info

Publication number: CN212967938U
Application number: CN202021940648.4U
Authority: CN
Inventors: 刘悦恩
Original assignee: Jyc Battery Manufacturer Co ltd
Current assignee: Jyc Battery Manufacturer Co ltd
Priority date: 2020-09-07
Filing date: 2020-09-07
Publication date: 2021-04-13
Anticipated expiration: 2030-09-07

Abstract

The utility model discloses a safety valve structure for a valve-controlled lead-acid storage battery, which comprises a valve body, a valve cover, an elastic piece and an acid filtering sheet; the valve body is provided with a containing hole, an exhaust hole, a main exhaust groove and a branch exhaust groove; the valve cover is provided with a limiting groove; the elastic part comprises a sealing column positioned in the exhaust hole, a limiting block arranged at the top of the sealing column, a limiting column arranged at the top of the limiting block and a telescopic spring sleeved on the limiting column; through main air discharge duct, prop up the air discharge duct, the spacing groove, the cooperation of stopper and spacing post, the gas pressure that the inside of battery produced is big more, sealed post will be by jack-up high more, unnecessary gas will discharge out through more an air discharge duct, the pressure release speed will be fast more, the pressure release is effectual, consequently, the pressure release speed of battery can be controlled according to the gas pressure size that the inside of battery produced to this relief valve, ensure the safe pressure release of battery, avoid the battery to appear expanding tripe phenomenon, the security is high.

Description

Safety valve structure for valve-controlled lead-acid storage battery

Technical Field

The utility model relates to a valve-regulated lead acid battery technical field, concretely relates to relief valve structure for valve-regulated lead acid battery.

Background

The valve-controlled lead-acid battery is widely applied to the fields of telecommunication, electric power, railways, UPS and the like, is the secondary chemical power supply which is most widely applied, and the safety valve is an important component of the valve-controlled sealed lead-acid battery and has the main functions of: in the later charging period of the battery, when the oxygen generated by the anode of the battery and the hydrogen generated by the cathode of the battery are not in time for the recombination and reduction of the oxygen and the hydrogen in the battery into water, the air pressure in the battery is increased; when the internal air pressure of the battery reaches a specified value, the safety valve can be automatically opened to discharge redundant oxyhydrogen gas; when the battery discharges gas, the internal pressure of the battery is reduced, and after the internal pressure reaches a specified value, the safety valve is automatically closed, so that external gas is prevented from entering the battery.

The existing valve-regulated lead-acid storage battery generally adopts a rubber cap to control the pressure relief of charging and discharging, and the upper surface of the rubber cap is an upper cover sealed by rubber or welded by heat sealing, so that once the pressure relief is not good, the battery is easy to deform, the expansion, the rupture and even the explosion of the battery are caused, and potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a effectual, the high relief valve structure for valve-regulated lead acid battery of security of pressure release.

In order to solve the technical problem, the technical scheme of the utility model is that: a safety valve structure for a valve-controlled lead-acid storage battery comprises a valve body, a valve cover arranged at the top of the valve body, an elastic part arranged inside the valve body, and an acid filtering sheet arranged on the valve cover; the upper surface of the valve body is provided with a containing hole in a downward concave manner, the lower surface of the valve body is provided with an exhaust hole communicated with the containing hole in an upward concave manner, the inner bottom wall of the containing hole is provided with a main exhaust groove in a downward concave manner, the inner side wall of the exhaust hole is provided with a plurality of branch exhaust grooves which are arranged from top to bottom in a outward concave manner, and the branch exhaust grooves are communicated with the main exhaust groove; the upper surface of the valve cover is provided with a limiting groove which is communicated with the accommodating hole in a downward concave mode; the elastic part is including being located exhaust hole, be used for sealing the sealed post of a gas discharge duct sets up sealed capital portion, be located the stopper of accommodation hole sets up stopper top, and follow the spacing post that the up-and-down motion was carried out to the spacing groove cup joints on the spacing post, be located telescopic spring between the lower surface of the upper surface of stopper and valve gap.

Preferably, the diameter of the receiving hole is larger than that of the exhaust hole, and the center of the receiving hole and the center of the exhaust hole are located on the same axis.

Preferably, three or more branch exhaust grooves are provided.

Preferably, the sealing column, the limiting block and the limiting column are integrally formed.

Preferably, the upper surface of valve gap is provided with the mounting groove down sunkenly, filter acid piece fixed mounting is in the mounting groove, the lower surface of valve gap up sunkenly be provided with the valve gap exhaust hole of mounting groove intercommunication, the mounting groove communicates through valve gap exhaust hole and accommodation hole.

Preferably, the lateral wall of valve body is provided with the installation department toward the outer extension, the height that highly is higher than the exhaust hole height of installation department, be provided with the screw hole on the installation department.

The utility model discloses technical effect mainly embodies: through the cooperative matching of the main exhaust groove, the branch exhaust grooves, the limiting blocks and the limiting columns, the larger the gas pressure generated in the storage battery is, the higher the sealing column can be jacked up, the more the redundant gas can be exhausted through the branch exhaust grooves, the faster the pressure relief speed can be, and the good pressure relief effect is achieved, so that the safety valve can control the pressure relief speed of the storage battery according to the gas pressure generated in the storage battery, the safe pressure relief of the storage battery is ensured, the belly expansion phenomenon of the storage battery is avoided, and the safety is high; after unnecessary gas discharges away, the sealed post will descend under expanding spring's effort, reseals a gas discharge groove, reduces the inside material loss of battery to reduce the loss in service of battery, the life of extension battery, consequently, this safety valve can also avoid the inside material of battery to appear losing, the life of extension battery through resealing a gas discharge groove.

Drawings

Fig. 1 is a schematic diagram of a safety valve structure for a valve-regulated lead-acid battery according to the present invention;

fig. 2 is an effect diagram of fig. 1.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and grasped.

In the present embodiment, it should be understood that the terms "middle", "upper", "lower", "top", "right", "left", "above", "back", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present embodiment, if the connection or fixing manner between the components is not specifically described, the connection or fixing manner may be a bolt fixing manner, a pin connecting manner, or the like, which is commonly used in the prior art, and therefore, details thereof are not described in the present embodiment.

A safety valve structure for a valve-regulated lead-acid storage battery is shown in figures 1-2 and comprises a valve body 1, a valve cover 2 arranged on the top of the valve body 1, an elastic part 3 arranged inside the valve body 1, and an acid filtering sheet 4 arranged on the valve cover 2.

The upper surface of valve body 1 is sunken down and is provided with accommodation hole 11, the lower surface of valve body 1 up sunken be provided with the exhaust hole 12 of accommodation hole 11 intercommunication, the interior diapire of accommodation hole 11 is sunken down and is provided with main exhaust duct 13, the inside wall of exhaust hole 12 is sunken outward and is provided with a plurality of branch exhaust duct 14 of arranging from top to bottom, branch exhaust duct 14 and main exhaust duct 13 intercommunication, the lateral wall of valve body 1 is toward extending outward and is provided with installation department 15, installation department 15 highly is higher than exhaust hole 12 height, be provided with screw hole 16 on the installation department 15. The upper surface of valve gap 2 down sunken be provided with the spacing groove 21 of accommodation hole 11 intercommunication, the upper surface of valve gap 2 down sunken be provided with

mounting groove

22, 4 fixed mounting of straining acid piece are in mounting groove 22, the lower surface of valve gap 2 up sunken be provided with the valve gap exhaust hole 23 of mounting groove 22 intercommunication, mounting groove 22 communicates with accommodation hole 11 through valve gap exhaust hole 23. The elastic part 3 is including being located in exhaust hole 12, be used for sealing the sealed post 31 of a gas groove 13 sets up sealed post 31 top, be located stopper 32 in the accommodation hole 11 sets up stopper 32 top, and follow the spacing post 33 that spacing groove 21 carries out the up-and-down motion cup joints on the spacing post 33, be located telescopic spring 34 between the upper surface of stopper 32 and the lower surface of valve gap 2.

In the present embodiment, the bonnet 2 is fixedly mounted on the top of the valve body 1 by screws 101.

In this embodiment, the acid filter 4 is a porous sheet formed by foamed polypropylene, and has the functions of blocking liquid and filtering acid due to the hydrophobicity of polypropylene, so as to effectively prevent the acid mist from overflowing.

In the present embodiment, the diameter of the receiving hole 11 is larger than that of the exhaust hole 12, and the center of the receiving hole 11 and the center of the exhaust hole 12 are located on the same axis.

In the present embodiment, three or more branch exhaust grooves 13 are provided.

In this embodiment, the sealing column 31 is located in the middle of the lower side of the limiting block 32, the limiting column 33 is located in the middle of the upper side of the limiting block 32, and specifically, the sealing column 31, the limiting block 32 and the limiting column 33 are integrally formed.

Of course, the above is only a typical example of the present invention, and besides, the present invention can also have other various specific embodiments, and all technical solutions adopting equivalent replacement or equivalent transformation are all within the scope of the present invention as claimed.

Claims

1. A safety valve structure for a valve-controlled lead-acid storage battery comprises a valve body, a valve cover arranged at the top of the valve body, an elastic part arranged inside the valve body, and an acid filtering sheet arranged on the valve cover; the upper surface of valve body is sunken downwards and is provided with the accommodation hole, the lower surface of valve body up sunken be provided with the exhaust hole of accommodation hole intercommunication, its characterized in that: the inner bottom wall of the accommodating hole is provided with a main exhaust groove in a downward concave mode, the inner side wall of the exhaust hole is provided with a plurality of branch exhaust grooves which are arranged from top to bottom in a concave mode outwards, and the branch exhaust grooves are communicated with the main exhaust groove; the upper surface of the valve cover is provided with a limiting groove which is communicated with the accommodating hole in a downward concave mode; the elastic part is including being located the sealed post in exhaust hole sets up sealed capital portion, be located the stopper of accommodation hole sets up stopper top, and follow the spacing post that the limiting groove carries out the up-and-down motion cup joints the last, that are located of spacing post expanding spring between the lower surface of the upper surface of stopper and valve gap.

2. The safety valve structure for a valve-regulated lead-acid battery according to claim 1, wherein: the diameter of the accommodating hole is larger than that of the exhaust hole, and the center of the accommodating hole and the center of the exhaust hole are located on the same axis.

3. The safety valve structure for a valve-regulated lead-acid battery according to claim 1, wherein: the branch exhaust grooves are more than three.

4. The safety valve structure for a valve-regulated lead-acid battery according to claim 1, wherein: the sealing column, the limiting block and the limiting column are integrally formed.

5. The safety valve structure for a valve-regulated lead-acid battery according to claim 1, wherein: the upper surface of valve gap is provided with the mounting groove down sunkenly, filter acid piece fixed mounting is in the mounting groove, the lower surface of valve gap up sunkenly be provided with the valve gap exhaust hole of mounting groove intercommunication, the mounting groove communicates through valve gap exhaust hole and accommodation hole.

6. The safety valve structure for a valve-regulated lead-acid battery according to claim 1, wherein: the lateral wall of valve body is provided with the installation department toward extending outward, be provided with the screw hole on the installation department.