A simulation detection device for standard safety valve of valve-regulated lead-acid battery cover

Abstract

The utility model discloses a standard safety valve simulation detection device for valve-controlled lead-acid battery cover, comprising: a simulation detection seat, the top surface of which is provided with an annular groove, the middle of which is provided with a vertical air hole, a detection hole column for installing a safety valve to be detected is formed between the annular groove and the air hole; the top surface height of the outer wall of the annular groove is higher than the top surface height of the safety valve to be detected after being installed on the detection hole column; the bottom end of the air hole is used for external air source; a transparent pressure cover, which is covered on the simulation detection seat when in use, and the transparent pressure cover covers the annular groove, the detection hole column and the range where the air hole is located; an exhaust channel connected to the annular groove is provided at the junction of the top surface of the simulation detection seat and the transparent pressure cover, on the outer wall of the annular groove of the simulation detection seat or on the transparent pressure cover; a pressure rod, comprising a bracket fixedly connected to the simulation detection seat, and a pressure rod provided on the bracket for pressing the transparent pressure cover. A batch of safety valves with small extreme differences are detected by the device, and the problem of large pressure detection error of the exhaust valve of the centering cover is overcome.

Description

Technical Field

[0001] The utility model relates to a valve-regulated lead-acid battery cover, in particular to a standard safety valve simulation detection device of the valve-regulated lead-acid battery cover. Background Art

[0002] Lead-acid batteries are reversible DC power sources that can convert chemical energy into electrical energy and electrical energy into chemical energy. Lead-acid batteries are mainly composed of electrolytes, tank covers and pole groups. The electrolyte of lead-acid batteries is sulfuric acid solution, and the pole group is mainly composed of positive plates, negative plates and separators. The separators mainly store electrolytes and serve as gas channels for oxygen recombination, preventing active substances from falling off and short circuits between the positive and negative electrodes.

[0003] As an important component of lead-acid batteries, the design, manufacturing and testing of the middle cover exhaust valve follow strict standards and specifications. In practical applications, the middle cover exhaust valve needs to be able to accurately and quickly respond to pressure changes inside the system to ensure timely exhaust under overpressure or negative pressure conditions, thereby protecting the system from damage or safety accidents.

[0004] Pressure testing is one of the important means to evaluate the performance of the middle cover exhaust valve. By testing the opening and closing of the exhaust valve under different pressures, it can be determined whether it meets the design requirements and usage needs. However, in actual operation, due to the differences in testing tools and changes in the performance of the exhaust valve itself, there will often be certain errors in the test results.

[0005] At present, some companies use random safety valves as testing tools to detect the pressure of the middle cover exhaust valve. However, this practice has many limitations. First, the performance parameters of the random safety valve (such as opening pressure, sealing performance, etc.) will vary due to differences in production, design, materials, etc. This difference will directly affect the accuracy of the pressure detection of the middle cover exhaust valve when used as a testing tool. Secondly, the opening pressure of the random safety valve may not completely match the actual working pressure range of the middle cover exhaust valve, which will also lead to errors in the test results.

[0006] If one safety valve is used to inspect multiple exhaust valves, the exhaust valve will experience a pressure change each time it is inspected, and its internal structure and performance may be affected to a certain extent. In particular, after the exhaust valve has been inspected multiple times, its internal parts may gradually fail due to fatigue, wear, etc., resulting in a gradual decrease in pressure or a decrease in sealing performance. In this case, even if the same safety valve is used for inspection, the accuracy of the inspection results will be affected by changes in the exhaust valve performance.

[0007] In order to solve the above problems, it is necessary to seek a more accurate and reliable detection device, and use a dedicated pressure detection device to replace the random safety valve for detection. This device should have the characteristics of high precision, high stability and high repeatability, and be able to accurately simulate the actual working pressure range of the exhaust valve and perform comprehensive and systematic detection on it. Utility Model Content

[0008] Based on the deficiencies in the prior art, the utility model provides a standard safety valve simulation detection device for valve-regulated lead-acid battery covers, through which a batch of safety valves with small extreme differences can be detected, thus overcoming the problem of large detection error of the exhaust valve pressure of the center cover.

[0009] The specific technical solution of the utility model is as follows:

[0010] The utility model provides a standard safety valve simulation detection device for a valve-regulated lead-acid battery cover, wherein the safety valve is in the shape of a cap that cooperates with an acid addition hole column of the valve-regulated lead-acid battery when in use, and the standard safety valve simulation detection device comprises:

[0011] The simulation detection seat has an annular groove on the top surface, a vertical air hole in the middle of the annular groove, and a detection hole column for installing the safety valve to be detected is formed between the annular groove and the air hole; the top surface height of the outer wall of the annular groove is higher than the top surface height of the safety valve to be detected after being installed on the detection hole column; the bottom end of the air hole is used for connecting an external air source;

[0012] A transparent pressure cover, which is covered on the simulation detection seat when in use, and covers the annular groove, the detection hole column and the range where the air hole is located; an exhaust channel connected to the annular groove is provided at the junction of the top surface of the simulation detection seat and the transparent pressure cover, on the outer side wall of the annular groove of the simulation detection seat or on the transparent pressure cover;

[0013] The pressure rod member comprises a bracket fixedly connected to the simulation detection seat, and a pressure rod arranged on the bracket and used for pressing the transparent pressure cover.

[0014] The side wall of the air hole extends downward to form a connecting column protruding downward from the simulation detection seat, and the bottom of the connecting column has a connecting pipe with a reduced diameter, and the connecting pipe is used to connect to an external gas source. The reduced diameter can ensure the tightness and stability of the connection and reduce the possibility of gas leakage.

[0015] Furthermore, the bracket includes a bottom plate sleeved on the connecting column, and a mounting plate located above the simulation detection seat, and the bottom plate and the mounting plate are connected via a connecting plate;

[0016] The mounting plate is provided with a threaded hole, and the pressure rod is a screw rod matched with the threaded hole.

[0017] Furthermore, the top of the screw rod is provided with an operating rod, and the bottom of the screw rod is provided with an abutting top portion for abutting against the transparent pressure cover.

[0018] Through the combination of the bottom plate, the connecting plate and the mounting plate, the bracket forms a stable structure, which can ensure that the simulation test seat and the components thereon (such as the pressure rod) remain stable during the test and reduce errors caused by vibration or shaking.

[0019] The screw rod cooperates with the threaded hole on the mounting plate, allowing the user to easily adjust the height of the screw rod by rotating the operating rod, thereby controlling the force of the top part against the transparent gland. This design makes the test process more flexible and can adapt to simulation test seats of different specifications or different test requirements.

[0020] The simulation detection seat includes a cylindrical sleeve located at the outer periphery and a cylindrical hole column located at the inner side, and the lower part of the inner wall of the cylindrical sleeve and the outer wall of the cylindrical hole column are respectively provided with an inner thread and an outer thread that are threadably matched with each other;

[0021] The annular groove is formed between the inner wall of the cylindrical sleeve located above the internal thread area and the outer wall of the cylindrical hole column located above the external thread area.

[0022] Since the inner wall lower part of the cylindrical sleeve and the outer wall of the cylindrical hole column have internal and external threads that match each other, this means that the height or internal space size of the simulation test seat can be adjusted by rotating the sleeve and the hole column. This adjustability enables the simulation test seat to adapt to test pieces of different sizes or different requirements, improving the versatility and flexibility of the equipment.

[0023] The top surface height of the outer side wall of the annular groove is 0.2 to 0.5 mm higher than the top surface height of the safety valve to be tested after being installed on the testing hole column.

[0024] Since the top surface of the outer wall of the annular groove is higher than the top surface of the safety valve, a tiny gap will be formed between the two when the safety valve is installed on the detection hole column. This gap serves as an exhaust gap, and the annular groove can effectively exhaust the gas in the system during the safety valve test, especially when the system pressure increases or needs to be quickly reduced. This design helps to maintain the stability of the test environment and ensure the accuracy of the test.

[0025] The utility model can accurately simulate the actual working pressure range of the exhaust valve, and a batch of safety valves with small range differences can be tested through the standard safety valve simulation detection device. These safety valves with small range differences can be randomly used for the detection of the pressure of the middle cover exhaust valve to achieve pressure consistency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1It is a schematic diagram of a standard safety valve simulation detection device for a valve-controlled lead-acid battery cover in the utility model;

[0027] Markings in the figure: 1-annular groove, 2-air hole, 3-safety valve to be tested, 4-test hole column, 5-transparent pressure cover, 6-bracket, 61-bottom plate, 62-mounting plate, 63-connecting plate, 7-pressure rod, 71-operating rod, 72-top, 8-connecting column, 9-connecting pipe, 10-cylindrical sleeve, 11-exhaust notch. DETAILED DESCRIPTION

[0028] Example 1

[0029] like Figure 1 As shown, the utility model provides a standard safety valve simulation detection device for a valve-regulated lead-acid battery cover, wherein the safety valve is in the shape of a cap that cooperates with an acid addition hole column of a valve-regulated lead-acid battery when in use, and the standard safety valve simulation detection device comprises:

[0030] The simulation detection seat has an annular groove 1 on the top surface, a vertical air hole 2 in the middle of the annular groove 1, and a detection hole column 4 for installing the safety valve 3 to be detected is formed between the annular groove 1 and the air hole 2; the top surface height of the outer wall of the annular groove 1 is higher than the top surface height of the safety valve 3 to be detected after being installed on the detection hole column 4; the bottom end of the air hole 2 is used for connecting an external air source;

[0031] The transparent pressure cover 5 is covered on the simulation detection seat when in use, and the transparent pressure cover 5 covers the range where the annular groove 1, the detection hole column 4 and the air hole 2 are located; an exhaust channel connected to the annular groove 5 is provided at the junction of the top surface of the simulation detection seat and the transparent pressure cover 5, on the outer side wall of the annular groove 1 of the simulation detection seat or on the transparent pressure cover 5;

[0032] The pressure rod member comprises a bracket 6 fixedly connected to the simulation detection seat, and a pressure rod 7 arranged on the bracket 6 and used for pressing the transparent pressure cover 5.

[0033] Specifically, the side wall of the air hole 2 extends downward to form a connecting column 8 protruding downward from the simulation detection seat, and the bottom of the connecting column 8 has a connecting pipe 9 with a reduced diameter, and the connecting pipe 9 is used to connect to an external gas source. When connecting to an external source, the connecting pipe 9 with a reduced diameter can reduce the possibility of gas leakage and ensure the tightness and stability of the connection.

[0034] like Figure 1 As shown, the bracket 6 includes a bottom plate 61 sleeved on the connecting column 8, and a mounting plate 62 located above the simulation detection seat, and the bottom plate 61 and the mounting plate 62 are connected by a connecting plate 63. Through the combination of the three plates, the bracket forms a stable structure, which can ensure that the simulation detection seat and its components (such as the pressure rod) remain stable during the test process;

[0035] The mounting plate 62 is provided with a threaded hole, and the pressure rod 7 is a screw rod matched with the threaded hole. The top of the screw rod is provided with an operating rod 71, and the bottom is provided with a butt-jointing portion 72 for butting against the transparent gland 5. The screw rod is matched with the threaded hole on the mounting plate, allowing the user to conveniently adjust the height of the screw rod by rotating the operating rod, thereby controlling the butt-jointing force of the butt-jointing portion against the transparent gland. It can adapt to simulation test seats of different specifications or different test requirements.

[0036] like Figure 1 As shown, the simulation detection seat includes a cylindrical sleeve 10 located at the outer periphery and a cylindrical hole column located at the inner side, and the lower part of the inner wall of the cylindrical sleeve 10 and the outer wall of the cylindrical hole column are respectively provided with an inner thread and an outer thread that are threadably matched with each other;

[0037] An annular groove 1 is formed between the inner wall of the cylindrical sleeve 10 located above the internal threaded area and the outer wall of the cylindrical hole column located above the external threaded area. The height or internal space size of the simulation test seat can be adjusted by rotating the sleeve and the hole column. This adjustability enables the simulation test seat to adapt to test pieces of different sizes or different requirements, thereby improving the versatility and flexibility of the device.

[0038] The top surface height of the outer wall of the annular groove 1 is 0.2-0.5 mm higher than the top surface height of the safety valve 3 to be tested after being installed on the detection hole column 4, and an exhaust gap 11 is formed here. The annular groove can effectively exhaust the gas in the system during the safety valve test, especially when the system pressure increases or needs to be quickly reduced.

[0039] When the utility model is in use, the safety valve 3 to be tested is installed on the detection hole column 4, the cylindrical sleeve 10 is screwed on, and then the transparent pressure cover 5 is covered, and the top part 72 of the bottom of the pressure rod is pressed against the transparent pressure cover 5 by rotating the operating rod 71 through the threaded hole of the mounting plate 61, and the air source is introduced through the connecting pipe 9 to screen the safety valve 3 to be tested that meets the conditions as the standard safety valve.

Claims

1. A standard safety valve simulation detection device for a valve-regulated lead-acid battery cover, wherein the safety valve is in the shape of a cap that matches the acid addition hole column of the valve-regulated lead-acid battery when in use, characterized in that: The standard safety valve simulation detection device comprises: The simulation detection seat has an annular groove on the top surface, a vertical air hole in the middle of the annular groove, and a detection hole column for installing the safety valve to be detected is formed between the annular groove and the air hole; the top surface height of the outer wall of the annular groove is higher than the top surface height of the safety valve to be detected after being installed on the detection hole column; the bottom end of the air hole is used for connecting an external air source; A transparent pressure cover, which is covered on the simulation detection seat when in use, and covers the annular groove, the detection hole column and the range where the air hole is located; an exhaust channel connected to the annular groove is provided at the junction of the top surface of the simulation detection seat and the transparent pressure cover, on the outer side wall of the annular groove of the simulation detection seat or on the transparent pressure cover; The pressure rod member comprises a bracket fixedly connected to the simulation detection seat, and a pressure rod arranged on the bracket and used for pressing the transparent pressure cover.

2. The standard safety valve simulation detection device of the valve-regulated lead-acid battery cover according to claim 1 is characterized in that: The side wall of the air hole extends downward to form a connecting column protruding downward from the simulation detection seat. The bottom of the connecting column is provided with a connecting pipe with a reduced diameter, and the connecting pipe is used for connecting to an external air source.

3. The standard safety valve simulation detection device of the valve-regulated lead-acid battery cover according to claim 2 is characterized in that: The bracket includes a bottom plate sleeved on the connecting column, and a mounting plate located above the simulation detection seat, and the bottom plate and the mounting plate are connected via a connecting plate; The mounting plate is provided with a threaded hole, and the pressure rod is a screw rod matched with the threaded hole.

4. The standard safety valve simulation detection device for the valve-regulated lead-acid battery cover according to claim 3 is characterized in that: The top of the screw rod is provided with an operating rod, and the bottom of the screw rod is provided with a butt-jointing portion for butting against the transparent pressure cover.

5. The standard safety valve simulation detection device for valve-regulated lead-acid battery cover according to claim 1, characterized in that: The simulation detection seat includes a cylindrical sleeve located at the outer periphery and a cylindrical hole column located at the inner side, and the lower part of the inner wall of the cylindrical sleeve and the outer wall of the cylindrical hole column are respectively provided with an inner thread and an outer thread that are threadably matched with each other; The annular groove is formed between the inner wall of the cylindrical sleeve located above the internal thread area and the outer wall of the cylindrical hole column located above the external thread area.

6. The standard safety valve simulation detection device for valve-regulated lead-acid battery cover according to claim 1, characterized in that: The top surface height of the outer side wall of the annular groove is 0.2 to 0.5 mm higher than the top surface height of the safety valve to be tested after being installed on the testing hole column.

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