CN218215629U

CN218215629U - Water-adding air plug capable of automatically exhausting

Info

Publication number: CN218215629U
Application number: CN202222414095.4U
Authority: CN
Inventors: 邓丹; 李凌波; 蔡志平; 段松华
Original assignee: Sichuan Changhong Battery Co ltd
Current assignee: Sichuan Changhong Battery Co ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2023-01-03
Anticipated expiration: 2032-09-09

Abstract

The utility model belongs to the technical field of the battery, concretely relates to but self-bleeding's air cock that adds water. The utility model discloses setting up exhaust through-hole and elastic sleeve at gas stopper body upper end lateral wall, exhaust through-hole and moisturizing chamber intercommunication, exhaust through-hole be higher than water inlet and delivery port and with moisturizing chamber intercommunication, the elastic sleeve cover is established at gas stopper body upper end lateral wall, exhaust through-hole is located elastic sleeve intraductally, elastic sleeve has the first state of sealing exhaust through-hole and the second state of not sealing exhaust through-hole. When the storage battery works normally or the water is added automatically, the elastic sleeve is tightly attached to the side wall of the upper end of the air plug body, the exhaust through hole is sealed, and the water adding system can work normally. When the air pressure in the battery shell cannot be timely discharged, the excessive air pressure in the battery shell can enable an exhaust gap to be generated between the elastic sleeve and the side wall of the upper end of the air plug body, so that air is discharged from the gap, the battery shell is prevented from being burst, and the reliability and the safety of the storage battery are improved.

Description

Water-adding air plug capable of automatically exhausting

Technical Field

The utility model belongs to the technical field of the battery, concretely relates to but self-bleeding's air cock that adds water.

Background

The cadmium-nickel storage battery and the metal hydride-nickel storage battery are used as emergency power supplies of trains, and are in a long-time floating charging state under normal conditions, the floating charging can cause water in electrolyte to be electrolyzed to generate gas, the water content is reduced, the liquid level is reduced, the storage battery is irreversibly damaged due to water shortage, and the liquid level of the storage battery needs to be periodically checked and water needs to be added in time. In order to reduce the difficulty and the working hour of water adding, a water adding system capable of automatically adding water is arranged on the storage batteries, the water adding system comprises a water adding air plug, a water pipe, a connector and the like, and the premise of automatically adding water is that the water adding system is good in sealing performance, so that the water adding air plug used at present is of a full-sealing structure except a water inlet and a water outlet, one water adding air plug is arranged on each storage battery in a group of storage batteries, and then the water inlet and the water outlet of each water adding air plug are sequentially connected. This allows for the communication of the water gas lock for each run. In the normal use process of the storage batteries, gas generated by charging of each storage battery enters the water replenishing cavity from the exhaust pipe of the water adding air plug, and is discharged from the water inlet of the first storage battery or the water outlet of the last storage battery along a channel formed by each water outlet and each water inlet, so that the exhaust safety of the storage batteries in the operation and use processes is ensured. The structural arrangement can realize the exhaust of the storage battery under normal conditions; however, the exhaust function of a plurality of outlets under abnormal conditions and excessive air pressure cannot be realized, and certain potential safety hazards are caused. Especially, in a low-temperature environment, water flow in the water replenishing pipeline is frozen, and gas generated by charging the storage batteries cannot be discharged from the water inlet of the first storage battery or the water outlet of the last storage battery through a channel formed by the water outlet and the water inlet, so that the storage battery shell is extremely easy to expand and explode, and potential safety hazards are caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that: the utility model provides a but self-bleeding add water gas stopper, its simple structure can be at the inside atmospheric pressure of battery case self-bleeding when unusual too big.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a water feeding air plug capable of automatically exhausting, which comprises an air plug body, wherein a water replenishing cavity is arranged in the air plug body, the upper part of the air plug body is provided with a water inlet and a water outlet which are communicated with the water replenishing cavity, and the lower part of the air plug body is provided with a water outlet which is communicated with the water replenishing cavity; the air plug body is also fixedly provided with an exhaust pipe, the top of the exhaust pipe is positioned in the air plug body, the top of the exhaust pipe is higher than the upper edge of the water inlet and the upper edge of the water outlet, and the bottom of the exhaust pipe is lower than the lower edge of the water outlet; still set up exhaust through hole and elastic sleeve at air lock body upper end lateral wall, the exhaust through hole is higher than water inlet and delivery port and communicates with the moisturizing chamber, and the elastic sleeve cover is established at air lock body upper end lateral wall, and the exhaust through hole is located the elastic sleeve intraductally, and the elastic sleeve has the first state of sealing the exhaust through hole and does not seal the second state of exhaust through hole.

Further, the method comprises the following steps: the air plug body further comprises a top cover, the lower end of the top cover is hermetically connected with the upper end of the air plug body, the exhaust through hole is formed in the side wall of the upper end of the top cover, and the elastic sleeve is sleeved on the outer side wall of the upper end of the top cover.

Further, the method comprises the following steps: the lower end of the cover is hermetically connected with the upper end of the air plug body through a bonding agent; the outer side wall of the lower end of the top cover is provided with a circle of first limiting convex edge, the upper end face of the air plug body is provided with a circle of second limiting convex edge, the outer side wall of the lower end of the top cover is in clearance fit with the inner side wall of the second limiting convex edge, a binder is arranged between the outer side wall of the lower end of the top cover and the inner side wall of the second limiting convex edge, and the lower end face of the first limiting convex edge is in contact with the upper end face of the second limiting convex edge.

Further, the method comprises the following steps: the outer side wall of the upper end of the top cover is provided with a circle of elastic sleeve limiting convex edge which is positioned above the elastic sleeve.

Further, the method comprises the following steps: the number of the exhaust through holes is more than or equal to one and is evenly arranged on the side wall of the upper end of the top cover.

Further, the method comprises the following steps: the air plug body, the elastic sleeve and the top cover are made of alkali-resistant materials.

Further, the method comprises the following steps: the bottom of the exhaust pipe is provided with a gas diversion trench.

Further, the method comprises the following steps: the outer side walls of the water inlet and the water outlet are both provided with water pipe anti-slip convex edges.

Further, the method comprises the following steps: a circle of third limiting convex edge is arranged on the outer side wall of the middle part of the air plug body, and a circle of sealing ring is arranged below the third limiting convex edge; still be provided with the gas stopper fixed knot that adds water and construct at the gas stopper body lateral wall, add water gas stopper fixed knot and construct and be located the sealing washer below.

Further, the method comprises the following steps: the water adding air plug fixing structure is a threaded connection part.

The utility model has the advantages that: the utility model discloses but self-bleeding's air cock that adds sets up exhaust through-hole and elastic sleeve at air cock body upper end lateral wall, exhaust through-hole and moisturizing chamber intercommunication, the exhaust through-hole be higher than water inlet and delivery port and with moisturizing chamber intercommunication, the elastic sleeve cover is established at air cock body upper end lateral wall, the exhaust through-hole is located the elastic sleeve intraductally, the elastic sleeve has the first state of sealing the exhaust through-hole and does not seal the second state of exhaust through-hole. When the storage battery works normally or the water is added automatically, the air pressure in the battery shell is normal, the elastic sleeve has the acting force for restoring the deformation and is tightly attached to the side wall of the upper end of the air plug body, the exhaust through hole is sealed, the water adding system is guaranteed to be good in sealing performance, and the water adding system can work normally. When the storage battery is overcharged or water flow in a water replenishing pipeline is frozen and blocked, and other faults cause that gas in the battery shell cannot be discharged in time, when the gas pressure exceeds the pressure which can be borne by the battery shell, the overlarge gas pressure in the battery shell can enable a gas exhaust gap to be generated between the elastic sleeve and the side wall of the upper end of the gas plug body, so that the gas is discharged from the gap, the storage battery shell is prevented from being burst, and the reliability and the safety of the storage battery are improved.

The utility model discloses simple structure, the practicality is strong, has improved the reliability and the security of battery.

Drawings

Fig. 1 is a schematic view of the water-adding air plug capable of automatically exhausting.

Labeled as: 1-air plug body, 11-water inlet, 12-water outlet, 13-water outlet, 14-air exhaust pipe, 15-second limiting convex edge, 16-water pipe anti-slip convex edge, 17-air guide groove, 18-third limiting convex edge, 2-air exhaust through hole, 3-top cover, 31-first limiting convex edge, 32-elastic sleeve limiting convex edge, 4-elastic sleeve and 5-sealing ring.

Detailed Description

The following detailed description of the present invention is provided with reference to the accompanying drawings to further understand the concept of the present invention, the technical problems to be solved, the technical features of the technical solutions and the technical effects brought by the technical features. However, the description of the embodiments is illustrative and not intended to limit the present invention.

The principle of automatic water adding of the water adding air plug is introduced as follows: each storage battery in the group of storage batteries is provided with a water adding air plug, the water outlet 12 of the previous water adding air plug is communicated with the water inlet 11 of the next water adding air plug, and the water inlet 12 of the first water adding air plug is communicated with water flow. When the storage batteries need to be maintained by adding water, as long as water flow is introduced from the water inlet 11 of the water adding air plug of the first storage battery in the storage battery pack, the water flow automatically flows into the water adding air plug of each storage battery in sequence along the channel formed by each water outlet 12 and each water inlet 11, and then enters the storage batteries through the water outlet 13 of the water adding air plug, when the water level in each storage battery reaches the maximum value, the bottom of the exhaust pipe 14 is blocked by continuously feeding water, at the moment, the water outlet 13 is prevented from continuously feeding water by increasing the air pressure in the storage batteries, and the water only can flow to the water inlet 11 of the water adding air plug of the next storage battery. When water flows out from the water outlet 12 of the last water adding air plug, the water adding of the whole group of storage batteries can be stopped when the water adding requirement is met, and the judgment is very easy. The adoption adds water the air lock and adds water to the battery and maintain have convenient and fast, add water a great deal of advantage accurate, labour saving and time saving. In the prior art, in the normal use process of the storage batteries, gas generated by charging each storage battery enters the water replenishing cavity from the exhaust pipe 14 of the water adding air plug, and then is discharged from the water inlet 11 of the water adding air plug of the first storage battery or the water outlet 12 of the water adding air plug of the last storage battery along a channel formed by each water outlet 12 and each water inlet 11, so that the safety of exhaust in the operation and use process of the storage batteries is ensured. The structure can realize the air exhaust of the storage battery under normal conditions, but cannot realize the air exhaust function of a plurality of outlets when the air pressure is abnormal and overlarge under abnormal conditions of the storage battery, and has certain potential safety hazard. Particularly, in a low-temperature environment, water flow in the water replenishing pipeline is frozen, and gas generated by charging the storage batteries cannot be discharged from the water inlet 11 of the water adding air plug of the first storage battery or the water outlet 12 of the water adding air plug of the last storage battery through a channel formed by the water outlet 12 and the water inlet 22, so that the storage battery shell is easy to expand and explode, and potential safety hazards are caused.

Therefore, the utility model provides a water feeding air lock capable of automatically exhausting, which comprises an air lock body 1, a water replenishing cavity is arranged in the air lock body 1, a water inlet 11 and a water outlet 12 which are communicated with the water replenishing cavity are arranged at the upper part of the air lock body 1, and a water outlet 13 which is communicated with the water replenishing cavity is arranged at the lower part of the air lock body 1; an exhaust pipe 14 is fixedly arranged on the air plug body 1, the top of the exhaust pipe 14 is positioned in the air plug body 1, the top of the exhaust pipe 14 is higher than the upper edge of the water inlet 11 and the upper edge of the water outlet 12, and the bottom of the exhaust pipe 14 is lower than the lower edge of the water outlet 13; still set up exhaust through hole 2 and elastic sleeve 4 at the lateral wall of the upper end of air lock body 1, exhaust through hole 2 is higher than water inlet 11 and delivery port 12 and communicates with the moisturizing chamber, and elastic sleeve 4 cover is established at the lateral wall of the upper end of air lock body 1, and exhaust through hole 2 is located elastic sleeve 4, and elastic sleeve 4 has the first state of sealing exhaust through hole 2 and does not seal exhaust through hole 2's second state.

The utility model discloses but self-bleeding's air cock that adds sets up exhaust through-hole 2 and elastic sleeve 4 at 1 upper end lateral wall of air cock body, exhaust through-hole 2 and moisturizing chamber intercommunication, exhaust through-hole 2 be higher than water inlet 11 and go out 12 mouths and with moisturizing chamber intercommunication, the 4 covers of elastic sleeve establish at air cock body upper end lateral wall, exhaust through-hole 2 is located elastic sleeve 4, elastic sleeve 4 has the first state of sealing exhaust through-hole 2 and does not seal exhaust through-hole 2's second state. When the storage battery normally works or the automatic water adding condition is adopted, the air pressure in the battery shell is normal, the elastic sleeve 4 has the acting force for restoring the deformation and is tightly attached to the side wall of the upper end of the air plug body 1, the exhaust through hole 2 is sealed, the water adding system is ensured to have good sealing performance, and the water adding system can normally work. When the storage battery is overcharged or water flow in the water replenishing pipeline is frozen, blockage and other faults cause that gas in the battery shell cannot be discharged in time, and when the gas pressure exceeds the pressure which can be borne by the battery shell, the excessive gas pressure in the battery shell can enable the elastic sleeve 4 and the side wall of the upper end of the gas plug body 1 to generate a gas discharge gap, so that the gas is discharged from the gap, the storage battery shell is prevented from being burst, and the reliability and the safety of the storage battery are improved. The utility model discloses simple structure, the practicality is strong, has improved the reliability and the security of battery.

It will be understood by those skilled in the art that the material of the elastic sleeve 4 in the present invention should be elastic, such as rubber. And when the elastic sleeve 4 is sleeved on the side wall of the upper end of the air plug body 1, the elastic sleeve is in a stretching state and has a counterforce for recovering deformation. When normal condition, the elastic sleeve 4 cover is at the lateral wall of 1 upper end of air lock body, and exhaust through-hole 2 is located elastic sleeve 4, because elastic sleeve 4 resumes the reaction force of deformation, will make elastic sleeve 4 and 1 upper end lateral wall of air lock body tightly laminate, and exhaust through-hole 2 can be sealed, guarantees water feeding system's normal operating. In the present invention, the shape of the exhaust through hole 2 is not limited, for example, a circular hole, an elliptical hole, etc.; the number is also not limited, e.g., 1, 3, etc.

The utility model discloses in, air lock body 1 and exhaust through hole 2 can integrated into one piece, nevertheless want integrated into one piece, its forming die's design and drawing of patterns are comparatively difficult, in order to reduce the shaping degree of difficulty of air lock body 1, preferred, air lock body 1 still includes

top cap

3, 3 lower extremes of top cap and 1 upper end sealing connection of air lock body, and exhaust through hole 2 sets up at 3 upper ends lateral walls of top cap, and 4 covers of elastic sleeve establish at 3 upper ends lateral walls of top cap. The mode of top cap 3 lower extreme and the airtight connection of gas plug body 1 upper end is various, for example screw thread sealing connection, buckle seal ring connection etc..

Further, the lower end of the top cover 3 is hermetically connected with the upper end of the air plug body 1 through a bonding agent; the outer side wall of the lower end of the top cover 3 is provided with a circle of first limiting convex edge 31, the upper end face of the air plug body 1 is provided with a circle of second limiting convex edge 15, the outer side wall of the lower end of the top cover 3 is in clearance fit with the inner side wall of the second limiting convex edge 15, a binder is arranged between the outer side wall of the lower end of the top cover 3 and the inner side wall of the second limiting convex edge 15, and the lower end face of the first limiting convex edge 31 is in contact with the upper end face of the second limiting convex edge 15.

When installing top cap 3, scribble the binder on 3 lower extreme lateral walls of top cap and the spacing bead 15 inside walls of second earlier, then cooperate first spacing bead 31 and the spacing bead 15 of second, make terminal surface and the spacing bead 15 up end contact of second under the first spacing bead 31, treat that the binder solidifies, the installation of top cap 3 is accomplished promptly. The mode of adopting the adhesive to connect the top cover 3 and the air plug body 1 in a sealing way has the advantages of simple structure at the sealing connection matching part, easy processing and forming, no need of using a rubber sealing ring, simple assembly and easy operation.

In order to prevent that elastic sleeve 4 from shifting, appear that exhaust through-hole 2 is located elastic sleeve 4 outside, the unable automatic watered condition of realization of gas plug that adds water, the utility model discloses be provided with the spacing bead 32 of round elastic sleeve at top cap 3 upper end lateral wall, the spacing bead 32 of elastic sleeve is located elastic sleeve 4 top, and the spacing bead 32 of elastic sleeve is used for spacing elastic sleeve 4.

The greater the number of the exhaust through holes 2, the more rapidly the exhaust occurs and the lower the possibility of danger occurring in the event of an abnormality. Preferably, the number of the exhaust through holes 2 is more than or equal to 2 and is uniformly arranged on the side wall of the upper end of the top cover 3. The exhaust through holes 2 are uniformly arranged, so that gas can be uniformly discharged from the side wall of the upper end of the top cover 3, and the exhaust is smoother.

Preferably, the air plug body 1, the elastic sleeve 4 and the top cover 3 are made of alkali-resistant materials. Such as ethylene propylene diene monomer, nitrile rubber, and the like. Because the air plug body 1, the elastic sleeve 4 and the top cover 3 are in a slightly alkaline environment for a long time, the design of the alkali-resistant material is beneficial to prolonging the service life of the air plug body, the elastic sleeve 4 and the top cover.

A gas guiding groove 17 is provided at the bottom of the exhaust pipe 14. The bottom of the exhaust pipe 14 is provided with the diversion trench 17, the diversion trench 17 can be a straight trench or a cross trench, and the arrangement of the diversion trench 17 can avoid the capillary phenomenon at the lower end of the exhaust pipe 14 to block the exhaust pipe 14, so that the reliability of water replenishing of the water adding air plug can be improved.

The outer side walls of the water inlet 11 and the water outlet 12 are both provided with water pipe anti-slip convex edges 16. The design of the water pipe anti-slip convex ridges 16 can ensure that the connecting water pipes arranged at the water inlet 11 and the water outlet 12 are more firmly arranged.

The attachment method of the air lock body 1 and the battery case is not limited, and for example, snap connection, welding, adhesion, and the like are used. In the embodiment of the utility model, a circle of third limit bead 18 is arranged in the middle of the air plug body 1, and a circle of sealing ring 5 is arranged below the third limit bead 18; a water adding air plug fixing structure is arranged below the sealing ring 5. The structure of the water adding air plug fixing structure is various, such as a buckle, a threaded connection part and the like. The embodiment of the utility model provides an in, it is preferred, the gas stopper fixed knot that adds water constructs for threaded connection portion, is provided with the external screw thread at sealing washer 5 below gas stopper body 1 lateral wall, is provided with the screw hole on battery case, and gas stopper body 1 passes through screw thread sealing connection with battery case. The sealing effect can be strengthened to the setting of sealing washer 5.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The water adding air plug capable of automatically exhausting comprises an air plug body (1), wherein a water replenishing cavity is formed in the air plug body (1), a water inlet (11) and a water outlet (12) which are communicated with the water replenishing cavity are formed in the upper part of the air plug body (1), and a water outlet (13) which is communicated with the water replenishing cavity is formed in the lower part of the air plug body (1); an exhaust pipe (14) is fixedly arranged on the air plug body (1), the top of the exhaust pipe (14) is positioned in the air plug body (1), the top of the exhaust pipe (14) is higher than the upper edge of the water inlet (11) and the upper edge of the water outlet (12), and the bottom of the exhaust pipe (14) is lower than the lower edge of the water outlet (13); the method is characterized in that: still set up exhaust through-hole (2) and elastic sleeve (4) at gas plug body (1) upper end lateral wall, exhaust through-hole (2) are higher than water inlet (11) and delivery port (12) and communicate with the moisturizing chamber, elastic sleeve (4) cover is established at gas plug body (1) upper end lateral wall, exhaust through-hole (2) are located elastic sleeve (4), elastic sleeve (4) have the first state of sealing exhaust through-hole (2) and the second state of not sealing exhaust through-hole (2).

2. The self-venting water added air lock as claimed in claim 1, wherein: the air plug body (1) further comprises a top cover (3), the lower end of the top cover (3) is connected with the upper end of the air plug body (1) in a sealing mode, the exhaust through holes (2) are formed in the side wall of the upper end of the top cover (3), and the elastic sleeve (4) is sleeved on the outer side wall of the upper end of the top cover (3).

3. The self-venting water added air lock as claimed in claim 2, wherein: the lower end of the top cover (3) is hermetically connected with the upper end of the air plug body (1) through a bonding agent; the outer side wall of the lower end of the top cover (3) is provided with a circle of first limiting convex edge (31), the upper end face of the air plug body (1) is provided with a circle of second limiting convex edge (15), the outer side wall of the lower end of the top cover (3) is in clearance fit with the inner side wall of the second limiting convex edge (15), a binder is arranged between the outer side wall of the lower end of the top cover (3) and the inner side wall of the second limiting convex edge (15), and the lower end face of the first limiting convex edge (31) is in contact with the upper end face of the second limiting convex edge (15).

4. The self-venting water added air lock as claimed in claim 2, wherein: the outer side wall of the upper end of the top cover (3) is provided with a circle of elastic sleeve limiting convex edge (32), and the elastic sleeve limiting convex edge (32) is positioned above the elastic sleeve (4).

5. The automatically ventable water gas adding stopper according to any one of claims 1 to 4, wherein: the number of the exhaust through holes (2) is more than or equal to 2 and is uniformly arranged on the side wall of the upper end of the top cover (3).

6. The automatically ventable water gas adding stopper as claimed in any one of claims 1 to 4, wherein: the air plug body (1), the elastic sleeve (4) and the top cover (3) are made of alkali-resistant materials.

7. The automatically ventable water gas adding stopper according to any one of claims 1 to 4, wherein: the bottom of the exhaust pipe (14) is provided with a gas diversion trench (17).

8. The automatically ventable water gas adding stopper as claimed in any one of claims 1 to 4, wherein: the outer side walls of the water inlet (11) and the water outlet (12) are both provided with water pipe anti-skidding convex edges (16).

9. The automatically ventable water gas adding stopper according to any one of claims 1 to 4, wherein: a circle of third limiting convex edges (18) are arranged on the outer side wall of the middle part of the air plug body (1), and a circle of sealing rings (5) are arranged below the third limiting convex edges (18); the outer side wall of the air plug body (1) is further provided with a water adding air plug fixing structure which is located below the sealing ring (5).

10. The self-venting water added air lock as claimed in claim 9, wherein: the water adding air plug fixing structure is a threaded connection part.