Safe gas discharge valve

Abstract

The utility model provides a gas safety discharge valve which comprises a valve body, a trapezoid valve cover, a pulling disc and a movable column, through holes are formed in the left side and the right side of the valve body, circular rings are installed in the two through holes respectively, a containing groove, two exhaust holes and a plurality of installation holes are formed below the trapezoid valve cover, and positioning holes are formed in the left side and the right side of the trapezoid valve cover respectively. A notch cylinder is installed at the right end of the pulling disc, a roller is rotatably installed at the right end of the notch cylinder, and a first cylinder and a second cylinder are installed on the annular side face of the notch cylinder, and the design solves the problem that the position of a valve anvil is unstable due to the fact that a valve cover and the valve anvil of an original device are connected only through a spring; according to the utility model, the structure is reasonable, the practicability is good, the valve cover is sealed through the elastic characteristic of the spring, so that the valve cover is more convenient and labor-saving to disassemble, the stability of the valve anvil is improved, and the valve anvil is suitable for popularization and application.

Description

Technical Field

[0001] This utility model is a gas safety discharge valve, belonging to the technical field of gas discharge equipment. Background Technology

[0002] A zinc-nickel single-flow battery system typically consists of a stack, a storage tank, a liquid pump, and connecting pipes. The liquid pump circulates the electrolyte between the storage tank and the stack. During operation, the entire battery system cannot be open, nor can it be completely sealed. If the battery system is open, moisture will evaporate, causing electrolyte loss; if it is completely sealed, the internal pressure of the battery system will be higher than the external gas pressure, resulting in an overpressure state. This gas pressure comes from the accumulation of trace amounts of hydrogen and oxygen released during charging and discharging. This gas pressure will continuously increase with long-term battery operation, posing a safety hazard. Therefore, a simple gas safety vent valve is required on the casing of the aforementioned battery system.

[0003] Patent No. CN203131137U discloses a gas safety discharge valve, which consists of four parts: valve body, valve cover, spring, and valve anvil. The valve cover and valve anvil are connected by the spring, and all three are located in the upper cavity of the valve body. The valve cover has an exhaust hole and is fixed to the valve body by threads. The bottom of the valve anvil has a sealing gasket. Under the combined action of spring force and gas pressure, the valve anvil automatically seals or separates from the valve body, automatically discharging overpressure gas. This device has significant advantages such as simple manufacturing process, automatic pressure control, safety and reliability, and low cost. However, the valve cover and valve anvil are only connected by a spring, which can lead to unstable valve anvil position. Moreover, the threaded connection between the valve cover and valve body makes disassembly difficult and the threads are prone to wear, affecting service life. There is an urgent need for a gas safety discharge valve to solve the above-mentioned problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a gas safety discharge valve to solve the problems mentioned in the background technology. This utility model has a reasonable structure and good practicality. It uses the elasticity of the spring to seal the valve cover, making the valve cover easier and less labor-intensive to disassemble, and also improving the stability of the valve anvil. It is suitable for widespread use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a gas safety discharge valve, comprising a valve body, a trapezoidal valve cover, a pull plate, and a movable column. The valve body has a trapezoidal groove on its upper surface and through holes on its left and right sides. Two rings are installed inside each of the through holes. The trapezoidal valve cover has a receiving groove, two exhaust holes, and multiple mounting holes on its lower surface. Positioning holes are provided on the left and right sides of the trapezoidal valve cover. An iron plate is installed on top of the trapezoidal valve cover. A notched cylinder is installed at the right end of the pull plate. A roller is rotatably installed at the right end of the notched cylinder. A first column and a second column are installed on the annular side of the notched cylinder. A first spring is installed at the left end of the first column and is sleeved with the notched cylinder. An mounting ring is slidably sleeved on the annular side of the movable column. A second spring is installed below the mounting ring. A sealing plate is installed at the lower end of the movable column, and the second spring is connected to the sealing plate.

[0006] Furthermore, there are two pull discs, each located in one of the two through holes, and the two first springs are respectively fixedly connected to the two rings.

[0007] Furthermore, a vent hole is provided in the lower center of the valve body, the vent hole is connected to the trapezoidal groove, and a connecting pipe is installed in the lower center of the valve body.

[0008] Furthermore, the mounting ring is connected to multiple mounting holes and a trapezoidal valve cover by multiple bolts.

[0009] Furthermore, two magnetic plates are installed above the valve body.

[0010] Furthermore, the diameter of the sealing sheet is larger than the diameter of the vent hole.

[0011] The beneficial effects of this utility model are as follows: This utility model provides a gas safety discharge valve. Because it adds a first spring, a second spring, a trapezoidal valve cover, a docking hole, a first column, a second column, a receiving groove, a sealing plate, and a movable column, our design improvements and actual use have shown that this device has a reasonable structure and good practicality. By using the elastic characteristics of the spring to seal the valve cover, the valve cover is more convenient and labor-saving to disassemble, and the stability of the valve anvil is improved, making it suitable for widespread use. Attached Figure Description

[0012] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0013] Figure 1 This is a first-angle perspective three-dimensional schematic diagram of the overall structure of a gas safety emission valve according to the present invention;

[0014] Figure 2This is a second-angle perspective three-dimensional schematic diagram of the overall structure of a gas safety emission valve according to the present invention;

[0015] Figure 3 This is a three-dimensional schematic diagram of the internal structure of the valve body of a gas safety discharge valve according to the present invention;

[0016] Figure 4 This is a three-dimensional schematic diagram of the connection structure between the trapezoidal valve cover and the mounting ring of a gas safety discharge valve according to this utility model;

[0017] Figure 5 This is a three-dimensional schematic diagram of the trapezoidal valve cover structure of a gas safety discharge valve according to this utility model;

[0018] Figure 6 This is a three-dimensional schematic diagram of the pull plate structure of a gas safety discharge valve according to the present invention;

[0019] Figure 7 This is a three-dimensional cross-sectional view of a gas safety discharge valve according to the present invention.

[0020] In the diagram: 1-valve body, 2-trapezoidal valve cover, 3-pull plate, 4-mounting ring, 10-connecting pipe, 11-through hole, 12-magnetic plate, 13-trapezoidal groove, 14-vent hole, 15-ring, 20-positioning hole, 21-exhaust hole, 22-iron plate, 23-receiving groove, 24-mounting hole, 30-notched cylinder, 31-first spring, 32-first column, 33-second column, 34-roller, 40-sealing plate, 41-moving column, 42-second spring. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Please see Figures 1-7This utility model provides a technical solution: a gas safety discharge valve, including a valve body 1, a trapezoidal valve cover 2, a pull plate 3, and a movable column 41. The valve body 1 has a trapezoidal groove 13 on its upper part and through holes 11 on its left and right sides. Two rings 15 are installed inside the two through holes respectively. The trapezoidal valve cover 2 has a receiving groove 23, two exhaust holes 21, and multiple mounting holes 24 on its lower part. Positioning holes 20 are provided on the left and right sides of the trapezoidal valve cover 2. An iron plate 22 is installed on top of the trapezoidal valve cover 2. A notched cylinder 30 is installed at the right end of the pull plate 3, and a roller 34 is rotatably installed at the right end of the notched cylinder 30. A first column 32 and a second column 33 are installed on the annular side. A first spring 31 is installed on the left end of the first column 32. The first spring 31 is sleeved with the notched cylinder 30. An installation ring 4 is slidably sleeved on the annular side of the movable column 41. A second spring 42 is installed below the installation ring 4. A sealing plate 40 is installed at the lower end of the movable column 41. The second spring 42 is connected to the sealing plate 40. This design solves the problem that in the original device, the valve cover and valve anvil are only connected by a spring, which causes the valve anvil to be unstable in position. Moreover, the valve cover and valve body are connected by threads, which is difficult to disassemble and the threads are easy to wear, affecting the service life.

[0023] As the first embodiment of this utility model: Two pull plates 3 are provided, each located in one of the two through holes 11. Two first springs 31 are fixedly connected to two rings 15 respectively. By providing two pull plates 3, it is convenient to limit the left and right sides of the trapezoidal valve cover 2. A vent hole 14 is provided in the lower middle part of the valve body 1. The vent hole 14 communicates with the trapezoidal groove 13. A connecting pipe 10 is installed in the lower middle part of the valve body 1. Through the cooperation of the connecting pipe 10 and the vent hole 14, external gas can enter the interior of the valve body 1. The mounting ring 4 is connected to multiple mounting holes 24 and the trapezoidal valve cover 2 by multiple bolts. The mounting ring 4 is connected to the trapezoidal valve cover 2 by bolts, which facilitates the installation and removal of the mounting ring 4. Two magnetic plates 12 are installed on the upper part of the valve body 1. Through the magnetic attraction between the two magnetic plates 12 and the iron plate 22, the trapezoidal valve cover 2 is not easy to shake. The diameter of the sealing plate 40 is larger than the diameter of the vent hole 14. By providing the sealing plate 40, it is convenient to block the vent hole 14.

[0024] As a second embodiment of this utility model: In use, firstly, seal the connecting pipe 10 to the top of the external flow battery housing, then align the trapezoidal valve cover 2 with the trapezoidal groove 13, insert the trapezoidal valve cover 2 into the trapezoidal groove 13, and the two rollers 34 contact the left and right inclined surfaces of the trapezoidal valve cover 2 and roll. As the left and right inclined surfaces of the trapezoidal valve cover 2 become wider, the two notched cylinders 30 move outward as a whole towards the valve body 1, thereby causing the first spring 31 to contract under the compression of the first column 32 and the ring 15. When the two rollers... When 34 is aligned with the two positioning holes 20, the two first springs 31 lose external force and return to their original state, thereby driving the corresponding notched cylinder 30 and roller 34 to insert into the two positioning holes 20. At this time, the sealing plate 40 blocks the vent hole 14. When the external gas pressure is too high, it will enter the connecting pipe 10 and impact the sealing plate 40. At this time, the movable column 41 moves upward and the second spring 42 contracts. When the external gas pressure is less than the elastic force of the second spring 42, the second spring 42 resets and drives the sealing plate 40 to block the vent hole 14 again.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A gas safety discharge valve, comprising a valve body (1), a trapezoidal valve cover (2), a pull plate (3), and a movable column (41), characterized in that: The valve body (1) is provided with a trapezoidal groove (13) on the top and through holes (11) on the left and right sides of the valve body (1). A ring (15) is installed in the two through holes respectively. The trapezoidal valve cover (2) is provided with a receiving groove (23), two exhaust holes (21) and multiple mounting holes (24) on the bottom. The trapezoidal valve cover (2) is provided with positioning holes (20) on the left and right sides respectively. An iron plate (22) is installed on the top of the trapezoidal valve cover (2). The pull plate (3) has a notched cylinder (30) installed on its right end. A roller (34) is rotatably installed on the right end of the notched cylinder (30). A first column (32) and a second column (33) are installed on the annular side of the notched cylinder (30). A first spring (31) is installed on the left end of the first column (32). The first spring (31) is sleeved with the notched cylinder (30). An installation ring (4) is slidably sleeved on the annular side of the movable column (41). A second spring (42) is installed below the installation ring (4). A sealing plate (40) is installed at the lower end of the movable column (41). The second spring (42) is connected to the sealing plate (40).

2. The gas safety discharge valve according to claim 1, characterized in that: The pull plate (3) is provided in two parts, and is located in two through holes (11) respectively. The two first springs (31) are fixedly connected to the two rings (15) respectively.

3. A gas safety discharge valve according to claim 1, characterized in that: The valve body (1) has a vent hole (14) in the middle of its lower part, which is connected to the trapezoidal groove (13). A connecting pipe (10) is installed in the middle of the lower part of the valve body (1).

4. A gas safety discharge valve according to claim 1, characterized in that: The mounting ring (4) is connected to multiple mounting holes (24) and trapezoidal valve cover (2) by multiple bolts.

5. A gas safety discharge valve according to claim 1, characterized in that: Two magnetic plates (12) are installed on the top of the valve body (1).

6. A gas safety discharge valve according to claim 1, characterized in that: The diameter of the sealing plate (40) is larger than the diameter of the vent (14).

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