Vent cock for valve-controlled closed lead-acid storage battery

Abstract

The utility model provides an exhaust cock for a valve-controlled closed lead-acid storage battery, which relates to the technical field of lead-acid storage batteries and comprises a base, a corundum filter cap, a one-way safety valve, a sealing ring and a mounting seat, a first mounting groove is arranged at one end of the base, the one-way safety valve is pressed and fixed in the first mounting groove through the mounting seat, and the base comprises a hollow cylinder and a rotating ring. A rotating ring is arranged on the outer wall of the lower end of the hollow column body, a sealing ring sleeves the outer side of the hollow column body at the connecting position of the hollow column body and the rotating ring, a groove and a second mounting groove are formed in one end, close to the rotating ring, of the hollow column body, and the corundum filter cap and the second mounting groove are adaptively mounted through a connecting ring; the one-way safety valve disclosed by the utility model can prevent acid mist in the battery from overflowing to the outside at the liquid adding port, and can meet the requirement that gas in the battery is discharged into the corundum filter cap in a one-way manner through the structural characteristics of the one-way safety valve, so that the explosion of the valve-controlled closed lead-acid storage battery caused by the increase of pressure due to the accumulation of the gas in the battery is avoided.

Description

Technical Field

[0001] This utility model relates to the field of lead-acid battery technology, and in particular to a valve-regulated sealed vent plug for lead-acid batteries. Background Technology

[0002] Valve-regulated sealed lead-acid batteries are an important energy storage component in explosion-proof power supply devices. Valve-regulated sealed lead-acid batteries adopt a starved electrolyte design, meaning that the amount of electrolyte inside the battery is relatively small. During charging, oxygen is released from the positive electrode. This oxygen reaches the negative electrode through the ultra-fine glass fiber separator channel, reacts with the active material of the negative electrode, and regenerates water. This process realizes the oxygen cycle inside the battery and reduces water loss.

[0003] Valve-regulated lead-acid batteries require a tight seal during use to prevent acid mist from escaping from the filler port. However, the operation of valve-regulated lead-acid batteries also generates gas that needs to be released, making it impossible to meet this requirement simply by sealing the filler port. Therefore, this invention proposes a vent plug for valve-regulated lead-acid batteries to address the shortcomings of existing technologies. Utility Model Content

[0004] To address the aforementioned problems, the purpose of this utility model is to provide a vent valve for a valve-regulated sealed lead-acid battery. The one-way safety valve can prevent acid mist inside the battery from overflowing to the outside at the filling port. Furthermore, the one-way safety valve's structural features allow for the one-way discharge of gas inside the battery to the corundum filter cap, preventing gas from accumulating inside the battery, increasing pressure, and thus avoiding the valve-regulated sealed lead-acid battery from exploding.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A valve-regulated sealed lead-acid battery vent includes a base, a corundum filter cap, a one-way safety valve, a sealing ring, and a mounting base. One end of the base has a first mounting groove, within which the one-way safety valve and the mounting base are located. The one-way safety valve is pressed into the first mounting groove by the mounting base. The base includes a hollow cylinder and a rotating ring. The rotating ring is located on the outer wall of the lower end of the hollow cylinder. A sealing ring is fitted onto the outer side of the hollow cylinder at the connection point between the hollow cylinder and the rotating ring. A connecting thread is provided on the outer wall of the hollow cylinder. A groove and a second mounting groove are located at the end of the hollow cylinder near the rotating ring, concentrically arranged. One end of the corundum filter cap has a connecting ring, which is used to fit and install the corundum filter cap into the second mounting groove.

[0007] A further improvement is that: the outer wall of the rotating ring is provided with raised ridges, and multiple sets of raised ridges are provided along the outer wall of the rotating ring, and the multiple sets of raised ridges are integrally formed with the rotating ring.

[0008] A further improvement is that the mounting base includes a bottom annular plate, an intermediate connecting seat, and an end sleeve. The bottom annular plate has an intermediate connecting seat at its top, the intermediate connecting seat has an end sleeve at its top, the intermediate connecting seat has a mating groove at its top, and one end of the one-way safety valve has a mating ring that matches the mating groove.

[0009] A further improvement is that the bottom annular plate, the middle connecting seat, and the end sleeve are concentrically arranged, and the bottom annular plate, the middle connecting seat, and the end sleeve are integrally formed structures.

[0010] A further improvement is that the diameter of the end sleeve is adapted to the inner diameter of the one-way safety valve, and a strip-shaped opening is provided on the outer wall of the end sleeve connected to the one-way safety valve, and at least three sets of the strip-shaped opening are provided.

[0011] A further improvement is that a positioning ring plate is provided inside the first mounting groove on the hollow column. The positioning ring plate is adapted to the diameter of the bottom circular ring plate, and the distance between the positioning ring plate and one end of the hollow column is equal to the height of the bottom circular ring plate.

[0012] The beneficial effects of this utility model are as follows: This utility model sets up an exhaust plug structure consisting of a base, a corundum filter cap, a one-way safety valve, a sealing ring, and a mounting base. The one-way safety valve can prevent acid mist inside the battery from overflowing to the outside at the filling port. Moreover, the one-way safety valve itself can meet the requirement that the gas inside the battery is discharged unidirectionally into the corundum filter cap, thus avoiding the accumulation of gas inside the battery, which increases the pressure and causes the valve-controlled sealed lead-acid battery to explode.

[0013] The exhaust vent of this invention has a simple structure, and the corundum filter cap itself has excellent acid and explosion resistance, thus making the entire exhaust vent structure highly resistant to acid and explosion, able to resist acid mist corrosion, and with a long service life. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0015] Figure 2 This is a three-dimensional schematic diagram of the base structure of this utility model;

[0016] Figure 3 This is a three-dimensional disassembled schematic diagram of the exhaust vent structure of this utility model;

[0017] Figure 4 This is a three-dimensional schematic diagram of the mounting base structure of this utility model.

[0018] The components include: 1. Base; 101. Hollow column; 102. Rotating ring; 103. Connecting thread; 2. Corundum filter cap; 3. One-way safety valve; 4. Sealing ring; 5. Mounting seat; 501. Bottom ring plate; 502. Intermediate connecting seat; 503. End sleeve; 6. First mounting groove; 7. Groove; 8. Second mounting groove; 9. Connecting ring; 10. Raised ridge; 11. Butt groove; 12. Butt ring; 13. Strip opening; 14. Positioning ring plate. Detailed Implementation

[0019] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.

[0020] according to Figure 1-4 As shown, this embodiment proposes a valve-regulated sealed lead-acid battery vent plug, including a base 1, a corundum filter cap 2, a one-way safety valve 3, a sealing ring 4, and a mounting base 5. One end of the base 1 has a first mounting groove 6, within which the one-way safety valve 3 and the mounting base 5 are disposed. The one-way safety valve 3 is pressed into the first mounting groove 6 by the mounting base 5. The base 1 includes a hollow cylinder 101 and a rotating ring 102. The rotating ring 102 is provided on the lower outer wall of the hollow cylinder 101. A sealing ring 4 is fitted on the outer side of the hollow column 101 at the connection position with the rotating ring 102, and a connecting thread 103 is provided on the outer wall of the hollow column 101. A groove 7 and a second mounting groove 8 are provided at one end of the hollow column 101 near the rotating ring 102. The groove 7 and the second mounting groove 8 are concentrically arranged. A connecting ring 9 is provided at one end of the corundum filter cap 2. The corundum filter cap 2 is fitted and installed in the second mounting groove 8 through the connecting ring 9. The hollow column 101 of this utility model has a structure with air holes inside the groove 7.

[0021] When assembling the vent plug for the valve-regulated sealed lead-acid battery of this utility model, the one-way safety valve 3 and the mounting base 5 are fitted together. Then, the sealing ring 4 is fitted onto the outside of the hollow cylinder 101 of the base 1. The one-way safety valve 3 and the mounting base 5, which are integrated as one unit, are then placed into the first mounting groove 6. The corundum filter cap 2 is then connected to the second mounting groove 8 on the base 1 via the connecting ring 9 (the two are bonded together with adhesive). Finally, the vent plug is connected to the internal thread at the filling port of the valve-regulated sealed lead-acid battery via the connecting thread 103 on the outer wall of the hollow cylinder 101. When the vent plug is in use, the acid mist inside the battery will not overflow into the vent plug. The gas inside the battery can be discharged into the corundum filter cap 2 and stored through the one-way safety valve 3 and the air holes on the hollow cylinder 101.

[0022] The outer wall of the rotating ring 102 is provided with raised ridges 10, and multiple sets of raised ridges 10 are provided along the outer wall of the rotating ring 102. The multiple sets of raised ridges 10 and the rotating ring 102 are integrally formed. By providing raised ridges 10, the rotating ring 102 can be easily operated to connect the entire vent plug to the internal thread at the filling port of the valve-regulated sealed lead-acid battery.

[0023] The mounting base 5 includes a bottom annular plate 501, an intermediate connecting seat 502, and an end sleeve 503. The bottom annular plate 501 has an intermediate connecting seat 502 on its top, and the intermediate connecting seat 502 has an end sleeve 503 on its top. The intermediate connecting seat 502 has a mating groove 11 on its top, and one end of the one-way safety valve 3 has a mating ring 12 that matches the mating groove 11. The one-way safety valve 3 and the mounting base 5 are also bonded together with adhesive. By setting the mating groove 11 and the mating ring 12 for proper installation, the stability of the one-way safety valve 3 when connected to the mounting base 5 is improved.

[0024] The bottom annular plate 501, the intermediate connecting seat 502, and the end sleeve 503 are concentrically arranged, and the bottom annular plate 501, the intermediate connecting seat 502, and the end sleeve 503 are integrally formed structures.

[0025] The diameter of the end sleeve 503 is adapted to the inner diameter of the one-way safety valve 3, and the outer wall of the end of the end sleeve 503 connected to the one-way safety valve 3 is provided with a strip opening 13. There are at least three sets of strip openings 13. By setting multiple sets of strip openings 13, this utility model can enable the one-way safety valve 3 to be quickly and successfully fitted to the mounting base 5. The setting of the strip openings 13 makes the end sleeve 503 divided into multiple arc plate structures. The arc plates can move inward during the extrusion process to facilitate the quick fitting and fixing of the one-way safety valve 3.

[0026] The hollow column 101 has a positioning ring plate 14 inside the first mounting groove 6. The positioning ring plate 14 is adapted to the diameter of the bottom circular ring plate 501, and the distance between the positioning ring plate 14 and one end of the hollow column 101 is equal to the height of the bottom circular ring plate 501. The positioning ring plate 14 is used to limit the installation of the mounting base 5, so that the bottom circular ring plate 501 is fitted onto the positioning ring plate 14.

[0027] This invention features an exhaust vent structure consisting of a base 1, a corundum filter cap 2, a one-way safety valve 3, a sealing ring 4, and a mounting base 5. The one-way safety valve 3 prevents acid mist inside the battery from overflowing to the outside at the filling port. Furthermore, the one-way safety valve 3's structural characteristics allow for the one-way discharge of gas from inside the battery into the corundum filter cap 2, preventing gas accumulation inside the battery and increased pressure that could cause the valve-regulated sealed lead-acid battery to explode. The exhaust vent structure is simple, and the corundum filter cap 2 itself has excellent acid and explosion-proof properties, resulting in high acid and explosion-proof performance of the entire exhaust vent structure. It can resist acid mist corrosion and has a long service life.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A vent plug for a valve-regulated sealed lead-acid battery, characterized in that: The system includes a base (1), a corundum filter cap (2), a one-way safety valve (3), a sealing ring (4), and a mounting base (5). One end of the base (1) has a first mounting groove (6), within which the one-way safety valve (3) and the mounting base (5) are located. The one-way safety valve (3) is secured inside the first mounting groove (6) by the mounting base (5). The base (1) includes a hollow cylinder (101) and a rotating ring (102). The rotating ring (102) is located on the outer wall of the lower end of the hollow cylinder (101). (101) A sealing ring (4) is fitted on the outside of the hollow column (101) at the connection position with the rotating ring (102), and a connecting thread (103) is provided on the outer wall of the hollow column (101). A groove (7) and a second mounting groove (8) are provided at one end of the hollow column (101) near the rotating ring (102). The groove (7) and the second mounting groove (8) are concentrically arranged. A connecting ring (9) is provided at one end of the corundum filter cap (2). The corundum filter cap (2) is adapted to the second mounting groove (8) through the connecting ring (9).

2. The vent plug for a valve-regulated sealed lead-acid battery according to claim 1, characterized in that: The outer wall of the rotating ring (102) is provided with protruding ridges (10), and multiple sets of protruding ridges (10) are provided along the outer wall of the rotating ring (102). The multiple sets of protruding ridges (10) and the rotating ring (102) are integrally formed.

3. The vent plug for a valve-regulated sealed lead-acid battery according to claim 1, characterized in that: The mounting base (5) includes a bottom annular plate (501), an intermediate connecting base (502) and an end sleeve (503). The bottom annular plate (501) has an intermediate connecting base (502) on top, the intermediate connecting base (502) has an end sleeve (503) on top, the intermediate connecting base (502) has a docking groove (11) on top, and one end of the one-way safety valve (3) has a docking ring (12) that is adapted to the docking groove (11).

4. The vent plug for a valve-regulated sealed lead-acid battery according to claim 3, characterized in that: The bottom annular plate (501), the intermediate connecting seat (502), and the end sleeve (503) are concentrically arranged, and the bottom annular plate (501), the intermediate connecting seat (502), and the end sleeve (503) are integrally formed.

5. The vent plug for a valve-regulated sealed lead-acid battery according to claim 4, characterized in that: The diameter of the end sleeve (503) is adapted to the inner diameter of the one-way safety valve (3), and a strip opening (13) is provided on the outer wall of the end of the end sleeve (503) connected to the one-way safety valve (3), and the strip opening (13) is provided in at least three sets.

6. The vent plug for a valve-regulated sealed lead-acid battery according to claim 5, characterized in that: The first mounting groove (6) on the hollow column (101) is provided with a positioning ring plate (14). The positioning ring plate (14) is adapted to the diameter of the bottom ring plate (501), and the distance between the positioning ring plate (14) and one end of the hollow column (101) is equal to the height of the bottom ring plate (501).

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