Explosion inspection tool for explosion-proof valve assembly

Abstract

The explosion inspection tool comprises a connecting plate and is characterized in that a sealing groove is formed in the top of one side of the connecting plate, a sealing strip is fixed to the sealing groove, a first air pressure cavity is formed in the top face of the sealing strip, the connecting plate is covered with an explosion-proof valve cover plate, a second air pressure cavity is formed in the bottom of the explosion-proof valve cover plate, and the first air pressure cavity is communicated with the second air pressure cavity. A sealing ring is fixed to the outer edge of the bottom of the second air pressure cavity, and the first air pressure cavity and the second air pressure cavity communicate with the outside through an air channel I and an air channel II correspondingly. The explosion inspection tool for the explosion-proof valve assembly is good in sealing effect and convenient to use.

Description

Technical Field

[0001] The utility model belongs to the field of explosion-proof valve explosion testing, in particular to an explosion-proof valve assembly explosion testing tool. Background Art

[0002] The explosion-proof valve is an essential structure in the battery of electric vehicles. It is used to vent gas in time when a violent adverse reaction occurs inside the battery and a large amount of gas is generated to prevent the battery from expanding and exploding. To ensure that the explosion-proof valve can effectively explode under the explosion pressure, it is usually necessary to perform a burst test on the designed explosion-proof valve. During the test, the interior of the box is inflated, and the leakage of the box is judged after the pressure is stabilized to confirm whether it meets the process requirements. Existing production lines generally put a piece of foam between the sealing device and the explosion-proof valve to play a sealing role, but the sealing effect is poor.

[0003] Existing authorization announcement number CN215985016U discloses an explosion-proof valve plugging test fixture, comprising: a bracket assembly, one end of which is used to position the explosion-proof valve on the battery case; a toggle clamp, located at the other end of the bracket assembly; and a blocking block, which is drivingly connected to the toggle clamp and equipped with a quick-connect connector for connecting to an air pipe to inflate the case. The blocking block seals against the side of the explosion-proof valve's outlet. This fixture has a complex structure and is inconvenient to use. Therefore, it is necessary to provide an explosion-proof valve assembly burst test fixture to address the above-mentioned issues. Summary of the Invention

[0004] The purpose of the utility model is to solve the deficiencies of the above-mentioned technology and to provide an explosion-proof valve assembly explosion inspection tool which has good sealing effect and is easy to use.

[0005] To solve the above problems, the utility model is designed to provide an explosion-proof valve assembly explosion inspection tool, including a connecting plate, a sealing groove on the top of one side of the connecting plate, a sealing strip fixed on the sealing groove, a first air pressure chamber on the top surface of the sealing strip, an explosion-proof valve cover plate on the connecting plate, a second air pressure chamber on the bottom of the explosion-proof valve cover plate, a sealing ring fixed on the outer edge of the bottom of the second air pressure chamber, after the explosion-proof valve face upwards and the product is placed on the connecting plate, the edge of the bottom surface of the explosion-proof valve is close to the sealing strip, and the sealing ring of the explosion-proof valve cover plate is close to the edge of the top surface of the explosion-proof valve, thereby ensuring the sealing of the first air pressure chamber and the second air pressure chamber, the first air pressure chamber and the second air pressure chamber are respectively connected to the outside with air channel I and air channel II, the first air pressure chamber is used to evacuate or inflate air through air channel I and the second air pressure chamber is used to evacuate or inflate air through air channel II to form a pressure difference on both sides of the explosion-proof valve.

[0006] As a further solution of the present invention, the air channel I includes an air inlet hole, which is arranged inside the connecting plate. One side of the air inlet hole is connected to the outside, and the other side extends upward at a position corresponding to the sealing ring to form an air path hole I. The sealing ring is provided with an air path hole II. When air is taken in, the gas passes through the air inlet hole, air path hole I and air path hole II in turn into the first air pressure chamber.

[0007] As a further solution of the present invention, the air duct II is arranged inside the explosion-proof valve cover plate, one side of the air duct II is connected to the outside, and the other side is connected to the second air pressure chamber.

[0008] As a further solution of the present invention, the connecting plate is in the shape of an elongated strip, one side of which extends downward to form a fixed portion, a bottom plate is fixed to the bottom of the fixed portion, and a slider is slidably connected to the side of the bottom plate away from the fixed portion. The slider is used to support the connecting plate. After moving the slider away from the connecting plate, the product is inserted into the connecting plate with the explosion-proof valve facing upward, and then the slider is slid to the bottom of the connecting plate and abutted against the connecting plate, so that the product is more stable in the connecting plate.

[0009] As a further solution of the present invention, a sliding groove is provided at the bottom of the slider. The sliding groove is in the shape of an elongated strip and is perpendicular to the connecting plate. The slider moves along the length direction of the sliding groove.

[0010] As a further solution of the present invention, a fixing groove is opened on the rear side of the sealing groove of the connecting plate, and an insert is provided in the fixing groove. After the insert is placed inside the fixing groove, the top surface of the insert is higher than the top surface of the connecting plate. After the product is inserted into the connecting plate, the rear end of the product is against the insert, making the product placement more stable and the positioning more accurate.

[0011] As a further solution of the present invention, a side plate is fixed on the left and right sides of the connecting plate respectively, the bottom of the side plate is fixed to the bottom plate, and the top ends of the two side plates are detachably connected to a pressure plate, which is used to squeeze the explosion-proof valve cover plate to improve the sealing of the first air pressure chamber and the second air pressure chamber.

[0012] As a further solution of the present invention, a groove is opened in the middle of the side panel, and guide columns are formed at both ends. Guide openings corresponding to the positions of the guide columns are opened around the pressure plate. The pressure plate moves along the guide columns through the guide openings, limiting the pressure direction of the pressure plate and making the pressure more stable.

[0013] As a further solution of the present invention, left and right sides of the explosion-proof valve cover plate extend downward to form baffles, which are used to prevent the explosion-proof valve cover plate from shaking and increase the stability of the explosion-proof valve cover plate.

[0014] In summary, the present invention has at least one of the following beneficial technical effects:

[0015] First, the utility model records an explosion inspection tool for an explosion-proof valve assembly, which records that a sealing groove is opened on the top of one side of the connecting plate, a sealing strip is fixed on the sealing groove, a first air pressure chamber is opened on the top surface of the sealing strip, an explosion-proof valve cover plate is covered on the connecting plate, a second air pressure chamber is opened on the bottom of the explosion-proof valve cover plate, a sealing ring is fixed on the outer edge of the bottom of the second air pressure chamber, after the product is placed on the connecting plate with the explosion-proof valve facing upward, the edge of the bottom surface of the explosion-proof valve is close to the sealing strip, and the sealing ring of the explosion-proof valve cover plate is close to the edge of the top surface of the explosion-proof valve, and its double sealing ring structure improves the test safety.

[0016] Second, the utility model records an explosion inspection tool for an explosion-proof valve assembly, which records that the connecting plate is in the shape of a long strip, one side of which extends downward to form a fixed part, a bottom plate is fixed to the bottom of the fixed part, and a slider is slidably connected to the side of the bottom plate away from the fixed part. The slider is used to support the connecting plate. After moving the slider away from the connecting plate, the explosion-proof valve is facing upward to put the product into the connecting plate, and then the slider is slid to the bottom of the connecting plate and abutted against the connecting plate to make the product more stable in the connecting plate.

[0017] Third, the utility model records an explosion-proof valve assembly explosion inspection tool, which records a modular design that combines the guide and the support into one structure, which reduces the weight of the tool by 15%, simplifies the structure, and makes operation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of an explosion-proof valve assembly explosion inspection tool of the utility model;

[0019] Figure 2 This is an overall top view of an explosion-proof valve assembly explosion inspection tool of the utility model;

[0020] Figure 3 This utility model is a kind of explosion-proof valve assembly explosion inspection tool Figure 2 Cross-sectional view at point A;

[0021] Figure 4 This is a schematic diagram of the explosion of a plastic mold of an explosion-proof valve assembly explosion inspection tooling of the utility model;

[0022] Figure 5 This is a schematic diagram of the explosion-proof valve cover plate structure of an explosion-proof valve assembly explosion inspection tooling of the utility model;

[0023] Figure 6 The utility model is a schematic diagram of the sealing ring structure of an explosion-proof valve assembly explosion inspection tool.

[0024] Figure numerals: 1, connecting plate; 101, fixing part; 2, bottom plate; 3, side plate; 4, guide column; 5, slider; 6, sliding groove; 7, pressure plate; 8, explosion-proof valve cover plate; 9, insert; 10, air duct I; 1001, air inlet hole; 1002, air path hole I; 1003, air path hole II; 11, air duct II; 12, second air pressure chamber; 13, fixing groove; 14, sealing groove; 15, guide port; 16, first air pressure chamber; 17, explosion-proof valve; 18, sealing strip; 19, baffle; 20, sealing ring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present invention.

[0026] like Figures 1 to 6 As shown, the explosion-proof valve assembly explosion inspection tool described in this embodiment includes a connecting plate 1, a sealing groove 14 is opened on the top of one side of the connecting plate 1, a sealing strip 18 is fixed on the sealing groove 14, a first air pressure chamber 16 is opened on the top surface of the sealing strip 18, an explosion-proof valve cover plate 8 is covered on the connecting plate 1, a second air pressure chamber 12 is opened at the bottom of the explosion-proof valve cover plate 8, a sealing ring 20 is fixed on the outer edge of the bottom of the second air pressure chamber 12, and the explosion-proof valve 17 is placed with the product facing upward. After connecting the plate 1, the bottom edge of the explosion-proof valve 17 is close to the sealing strip 18, and the sealing ring 20 of the explosion-proof valve cover plate 8 is close to the top edge of the explosion-proof valve 17, ensuring the sealing of the first air pressure chamber 16 and the second air pressure chamber 12. The first air pressure chamber 16 and the second air pressure chamber 12 are respectively connected to the outside through the air channel I10 and the air channel II11. The first air pressure chamber 16 is used for exhausting or inflating through the air channel I10 and the second air pressure chamber 12 is used for exhausting or inflating through the air channel II11 to form a pressure difference on both sides of the explosion-proof valve 17.

[0027] The air channel I10 includes an air inlet hole 1001, which is arranged inside the connecting plate 1. One side of the air inlet hole 1001 is connected to the outside, and the other side extends upward at a position corresponding to the sealing ring 20 to form an air path hole I1002. The sealing ring 20 is provided with an air path hole II1003. When air is taken in, the gas passes through the air inlet hole 1001, air path hole I1002 and air path hole II1003 in sequence into the first air pressure chamber 16.

[0028] The air passage II 11 is provided inside the explosion-proof valve cover plate 8 , one side of the air passage II 11 is connected to the outside, and the other side is connected to the second air pressure chamber 12 .

[0029] The connecting plate 1 is in the shape of an elongated strip, one side of which extends downward to form a fixed portion 101. A bottom plate 2 is fixed to the bottom of the fixed portion 101. A slider 5 is slidably connected to the side of the bottom plate 2 away from the fixed portion 101. The slider 5 is used to support the connecting plate 1. After moving the slider 5 away from the connecting plate 1, the product is inserted into the connecting plate 1 with the explosion-proof valve 17 facing upward. Subsequently, the slider 5 is slid to the bottom of the connecting plate 1 and abutted against the connecting plate 1, so that the product is more stable in the connecting plate 1.

[0030] A sliding groove 6 is formed at the bottom of the slider 5 . The sliding groove 6 is in the shape of an elongated strip and is perpendicular to the connecting plate 1 . The slider 5 moves along the length direction of the sliding groove 6 .

[0031] A fixing groove 13 is opened on the rear side of the sealing groove 14 of the connecting plate 1, and an insert 9 is provided in the fixing groove 13. After the insert 9 is placed inside the fixing groove 13, the top surface of the insert 9 is higher than the top surface of the connecting plate 1. After the product is inserted into the connecting plate 1, the rear end of the product is against the insert 9, making the product placement more stable and the positioning more accurate.

[0032] A side plate 3 is fixed on the left and right sides of the connecting plate 1 respectively, the bottom of the side plate 3 is fixed to the bottom plate 2, and the top of the two side plates 3 is detachably connected to a pressure plate 7, which is used to squeeze the explosion-proof valve cover plate 8 to improve the sealing performance of the first air pressure chamber 16 and the second air pressure chamber 12.

[0033] The side plate 3 is grooved in the middle, with guide columns 4 formed at both ends. The pressure plate 7 is surrounded by guide openings 15 corresponding to the positions of the guide columns 4. The pressure plate 7 moves along the guide columns 4 through the guide openings 15, limiting the pressure direction of the pressure plate 7 and making the pressure more stable.

[0034] The left and right sides of the explosion-proof valve cover plate 8 extend downward to form baffles 19 , and the baffles 19 are used to prevent the explosion-proof valve cover plate 8 from shaking and increase the stability of the explosion-proof valve cover plate 8 .

[0035] The working principle of the explosion-proof valve assembly explosion inspection tool provided by the utility model is as follows:

[0036] After the product is put into the sealing strip 18, the product is put into the sealing strip 18, and the product is put into the sealing strip 19. Then, the explosion-proof valve cover 8 and the pressure plate 7 are sequentially covered. Then, the slider 5 is moved to the bottom plate 2 and the connecting plate 1 is pressed against the connecting plate 1 to make the product more stable in the connecting plate 1. The pressure plate 7 is pressed downward along the guide column 4. The bottom edge of the explosion-proof valve 17 is close to the sealing strip 18, and the sealing ring 20 of the explosion-proof valve cover 8 is close to the top edge of the explosion-proof valve 17 to ensure the sealing of the first air pressure chamber 16 and the second air pressure chamber 12. The first air pressure chamber 16 is ventilated through the airway I10 and the second air pressure chamber 12 is ventilated through the airway II11 to blast the product.

[0037] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone can derive other forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, any technical solution that is the same or similar to that of the present application falls within the scope of protection of the present invention.

Claims

1. An explosion-proof valve assembly explosion inspection tool, comprising a connecting plate (1), characterized in that: A sealing groove (14) is formed on the top of one side of the connecting plate (1), a sealing strip (18) is fixed on the sealing groove (14), a first air pressure chamber (16) is formed on the top surface of the sealing strip (18), an explosion-proof valve cover plate (8) is formed on the connecting plate (1), a second air pressure chamber (12) is formed on the bottom of the explosion-proof valve cover plate (8), a sealing ring (20) is fixed on the outer edge of the bottom of the second air pressure chamber (12), and the first air pressure chamber (16) and the second air pressure chamber (12) are respectively connected to the outside through airway I (10) and airway II (11).

2. The explosion-proof valve assembly explosion inspection tool according to claim 1, characterized in that: The air passage I (10) includes an air inlet hole (1001), which is arranged inside the connecting plate (1). One side of the air inlet hole (1001) is connected to the outside, and the other side extends upward at a position corresponding to the sealing ring (20) to form an air path hole I (1002). The sealing ring (20) is provided with an air path hole II (1003). When air is introduced, the gas enters the first air pressure chamber (16) through the air inlet hole (1001), the air path hole I (1002) and the air path hole II (1003) in sequence.

3. The explosion-proof valve assembly explosion inspection tool according to claim 2, characterized in that: The air passage II (11) is arranged inside the explosion-proof valve cover plate (8), and one side of the air passage II (11) is connected to the outside, and the other side is connected to the second air pressure chamber.

4. The explosion-proof valve assembly explosion inspection tool according to claim 1, characterized in that: The connecting plate (1) is in the shape of an elongated strip, with one side of the connecting plate extending downward to form a fixing portion (101). A bottom plate (2) is fixed to the bottom of the fixing portion (101). A slider (5) is slidably connected to the side of the bottom plate (2) away from the fixing portion (101). The slider (5) is used to support the connecting plate (1).

5. The explosion-proof valve assembly explosion inspection tool according to claim 4, characterized in that: A sliding groove (6) is provided at the bottom of the slider (5). The sliding groove (6) is in the shape of an elongated strip and is perpendicular to the connecting plate (1). The slider (5) moves along the length direction of the sliding groove (6).

6. The explosion-proof valve assembly explosion inspection tool according to claim 1, characterized in that: A fixing groove (13) is provided on the rear side of the sealing groove (14) of the connecting plate (1), and an insert (9) is provided in the fixing groove (13). When the insert (9) is placed in the fixing groove (13), the top surface of the insert (9) is higher than the top surface of the connecting plate (1).

7. The explosion-proof valve assembly explosion inspection tool according to claim 4, characterized in that: A side plate (3) is fixed to the left and right sides of the connecting plate (1), respectively. The bottom of the side plate (3) is fixed to the bottom plate (2). The top ends of the two side plates (3) are detachably connected to a pressure plate (7). The pressure plate (7) is used to squeeze the explosion-proof valve cover plate (8).

8. The explosion-proof valve assembly explosion inspection tool according to claim 7, characterized in that: The side plate (3) is grooved in the middle, and guide columns (4) are formed at both ends. The pressure plate (7) is provided with guide openings (15) corresponding to the positions of the guide columns (4) around it, and the pressure plate (7) moves along the guide columns (4) through the guide openings (15).

9. The explosion-proof valve assembly explosion inspection tool according to claim 1, characterized in that: Left and right sides of the explosion-proof valve cover plate (8) extend downward to form baffles (19), and the baffles (19) are used to prevent the explosion-proof valve cover plate (8) from shaking.

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