Novel explosion-proof valve airtight tooling

Abstract

This invention discloses a novel airtight fixture for explosion-proof valves, comprising a fixture base for connecting to the explosion-proof valve body. The four corners of the explosion-proof valve body are flanged. The lower part of the fixture base has notches for engaging with the explosion-proof valve body, and the lower part of the fixture base is integrally provided with fixing ribs for engaging with the flanges at the four corners of the explosion-proof valve body. A base end cap is detachably and fixedly connected to the upper part of the fixture base, and a fixture slider is slidably fitted inside the fixture base. The bottom of the fixture slider is provided with a sealing ring groove designed to conform to the sealing surface of the explosion-proof valve body, and an interference-fit sealing ring is embedded in the sealing ring groove. This invention achieves a highly reliable, durable, easy-to-use, and easy-to-maintain airtight fixture solution for explosion-proof valves through lightweight, simplified, and innovative structural design. The manufacturing process is simple, reducing material costs and processing time. The product provides effective assurance for airtightness testing during battery pack production, maintenance, and repair, resulting in significant economic benefits.

Description

Technical Field

[0001] This invention relates to the field of sealing devices, and more particularly to a novel explosion-proof valve airtight fixture. Background Technology

[0002] New energy vehicles refer to automobiles that use unconventional vehicle fuels as their power source (or use conventional vehicle fuels but employ new onboard power devices), integrating advanced technologies in vehicle power control and drive, resulting in vehicles with advanced technical principles and new technologies and structures. Currently, the airtightness testing of battery packs for new energy vehicles is involved in many aspects of PACK and vehicle production, inspection, and after-sales maintenance, requiring the use of explosion-proof vent valve airtightness testing fixtures. However, existing airtightness fixtures suffer from problems such as frequent maintenance and replacement of vulnerable parts, bulky and difficult-to-carry fixtures in the aftermarket, and inoperability due to space limitations imposed by on-site vehicles or fixture structures. Summary of the Invention

[0003] (I) Purpose of the Invention

[0004] In view of this, the purpose of this invention is to propose a novel airtight fixture for explosion-proof valves to solve the problem of frequent damage and replacement of easily damaged sealing rings; and to solve the problem of bulky and difficult-to-carry airtight fixtures during after-sales maintenance. It features a simplified size, reduced weight, compact and lightweight design, ingenious structure, ease of use, and ease of repair and maintenance, among other innovative advantages.

[0005] (II) Technical Solution

[0006] To achieve the above technical objectives, the present invention provides a novel airtight tooling for explosion-proof valves:

[0007] It includes a tooling base for connecting to the explosion-proof valve body. The four corners of the explosion-proof valve body are flanged. The lower part of the tooling base has a notch for engaging the explosion-proof valve body. The lower part of the tooling base is integrally provided with a fixing rib for engaging with the four corner flanges of the explosion-proof valve body. The upper part of the tooling base is detachably and fixedly connected to a base end cap. A tooling slider is slidably fitted inside the tooling base.

[0008] The bottom of the tooling slider is provided with a sealing ring groove that is designed to conform to the sealing surface of the explosion-proof valve body, and an interference fit sealing ring is embedded in the sealing ring groove. The base end cover is provided with a drive mechanism for driving the tooling slider to move and block the airtight passage of the explosion-proof valve body.

[0009] Preferably, the driving mechanism includes a split-design slider pin and slider handle. The inner sides of the slider pin and slider handle are connected by the same slider fixing bolt. The lower end of the slider fixing bolt is threadedly connected to the top of the tooling slider. The base end cover is provided with a contoured opening for the slider pin to pass through. The bottom of the base end cover is provided with a base end cover slider guide rail for contacting and engaging with the slider pin when the slider pin rotates, thereby moving the slider pin. The base end cover slider guide rail is arc-shaped and its end is inclined.

[0010] Preferably, the top of the tooling slider is integrally provided with an internal threaded boss for threaded connection with the lower end of the slider fixing bolt, and a plurality of spaced corrugated washers and flat washers are fitted on the slider fixing bolt, with the corrugated washers and flat washers located between the slider pin and the internal threaded boss.

[0011] Preferably, the upper part of the tooling slider is detachably and fixedly connected to two annular permanent magnets by permanent magnet fixing bolts, and the two annular permanent magnets are symmetrically arranged, with the position of the annular permanent magnets corresponding to the position of the raised plane of the base end cover slider guide rail.

[0012] Preferably, the tooling base is provided with tooling base guide rail protrusions on the inner walls of opposite sides, and the tooling slider is provided with tooling slider guide rail grooves for sliding cooperation with the tooling base guide rail protrusions.

[0013] Preferably, the lower part of the slider handle is provided with a dovetail groove, and the upper part of the slider pin is provided with a dovetail protrusion, which is engaged in the dovetail groove.

[0014] Preferably, the slider fixing bolt includes an integrally formed cylindrical section and a threaded section, and the threaded section is threadedly connected to the internal thread boss. The slider pin and the slider handle are both fitted onto the cylindrical section and are rotatable.

[0015] Preferably, the four corners of the base end cover are fixedly connected to the tooling base by base end cover fixing bolts.

[0016] As can be seen from the above technical solutions, this application has the following beneficial effects:

[0017] 1. The sealing ring structure of the present invention adopts the form of the sealing surface trajectory of the explosion-proof valve and the embedded O-ring structure, which ensures the reliability and durability of the sealing structure and is easy to maintain, fully meeting the requirements of high-intensity use.

[0018] 2. The technical solution of this invention features a separate design for the tooling slider pin and slider handle, and a dovetail groove riveting process, which ensures the product's functional requirements, simplifies processing, and saves time.

[0019] 3. The technical solution of the present invention features a base end cover slider guide rail and tooling slider design that do not require distinguishing the rotation direction, making it simple to use and easy to operate.

[0020] 4. The technical solution of the present invention is small and compact, adaptable to the needs of various application environments such as workshop production and after-sales maintenance; the main body is made of lightweight aluminum material, which is convenient to handle and carry.

[0021] Through lightweight, simplified, and innovative structural design, a highly reliable, durable, easy-to-use, and easy-to-maintain explosion-proof valve airtight tooling solution has been achieved; the production and processing technology is simple, reducing material costs and processing time; the product provides an effective guarantee for airtightness testing during battery pack production, maintenance, and repair, resulting in significant economic benefits. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0023] Figure 1 An exploded view of a novel explosion-proof valve airtight fixture provided by the present invention.

[0024] Figure 2 This is a schematic diagram of the lifting of a novel explosion-proof valve airtight fixture provided by the present invention.

[0025] Figure 3 This is a schematic diagram of the clamping of a novel explosion-proof valve airtight fixture provided by the present invention.

[0026] Figure 4 This is a schematic diagram of the assembly structure of a novel explosion-proof valve airtight tooling provided by the present invention.

[0027] Figure 5 This is a schematic diagram showing the arrangement of the sealing ring groove in a novel explosion-proof valve airtight fixture provided by the present invention.

[0028] Figure Descriptions: Reference numerals: 1. Explosion-proof valve body; 2. Tooling base; 21. Notch; 22. Fixing rib; 3. Tooling base guide rail rib; 4. Tooling slider; 41. Internal thread boss; 5. Tooling slider guide rail groove; 6. Sealing ring groove; 7. Sealing ring; 8. Annular permanent magnet; 9. Permanent magnet fixing bolt; 10. Corrugated washer; 11. Flat washer; 12. Base end cap; 13. Base end cap fixing bolt; 14. Slider pin; 15. Slider handle; 16. Slider fixing bolt; 17. Base end cap slider guide rail; 18. Contour opening. Detailed Implementation

[0029] The following description is exemplary in nature and is not intended to limit the scope, application, or use of this disclosure. It should be understood that in all these figures, the same or similar reference numerals indicate the same or similar parts and features. The figures are merely schematic representations of the concept and principles of embodiments of this disclosure and do not necessarily show the specific dimensions and scale of the various embodiments of this disclosure. Certain details or structures of embodiments of this disclosure may be exaggerated in particular portions of certain figures.

[0030] Reference Figure 1-5 :

[0031] Example 1

[0032] A novel explosion-proof valve airtight fixture, the main material of which is aluminum, is composed of a fixture base 2 and a fixture slider 4 and related components (such as...). Figure 1 After being pressed onto the explosion-proof valve body 1 mounted on the battery pack, the airtight passage of the explosion-proof valve body 1 is blocked, thus meeting the airtightness test requirements of the battery pack.

[0033] Specifically, tooling base 2 (such as Figure 3 The explosion-proof valve body 1 is inserted along the notch 21. The four corner flange structure of the explosion-proof valve body 1 cooperates with the fixing rib 22 of the tooling base 2 to lock the explosion-proof valve body 1.

[0034] Tooling slider 4 bottom (e.g.) Figure 2 The sealing ring groove 6 is embedded with an interference fit sealing ring 7. The sealing ring groove 6 is designed to match the sealing surface of the explosion-proof valve. The sealing ring 7 is an O-ring, which is convenient for maintenance and replacement.

[0035] In addition, the top of the tooling slider 4 is equipped with a slider pin 14, a slider handle 15, several corrugated washer 10s and flat washers 11s via slider fixing bolts 16. The slider pin 14 and slider handle 15 are separate designs, using a dovetail groove riveting design for sliding assembly, solving the problem of difficult machining and meeting the requirements for fitting accuracy and constrained axial freedom. The corrugated washer and flat washer are matched by adjusting their quantity to provide a suitable clamping force for pressing the explosion-proof valve (e.g., ...). Figure 4 Compressed state; such as Figure 3 (Uncompressed state).

[0036] It should be noted that the annular permanent magnet fixing bolt 9 is fixed to the upper part of the tooling slider 4, corresponding to the raised plane position of the base end cover slider guide rail 17 of the base end cover 12. When the relevant parts of the tooling slider 4 are open, it is attracted to the base end cover 12, which serves as a limit and positioning function. The base end cover slider guide rail 17 is arc-shaped and its end is inclined.

[0037] The base end cover 12 is made of steel and is fixed to the tooling base 2 by four base end cover fixing bolts 13. The base end cover 12 has a base end cover slider guide rail 17 inside (e.g., Figure 4 The tooling slider 4 is clamped and lifted by rotating the slider handle 15, and the contoured opening 18 cooperates with the slider pin 14. Specifically, when the slider pin 14 rotates onto the base end cover slider guide rail 17, the slider pin 14 and the tooling slider 4 move down as a whole under the action of the base end cover slider guide rail 17, and then the sealing ring 7 presses against the sealing surface of the explosion-proof valve body 1 to seal.

[0038] In addition, the tooling base guide rail protrusion 3 cooperates with the tooling slider guide rail groove 5 to realize the movement of the tooling slider 4 and related components along the track direction (such as...). Figure 1 ), complete the compaction (such as Figure 5 ) and lifting (such as Figure 3 )action.

[0039] The exemplary implementation of the solution proposed in this disclosure has been described in detail above with reference to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the spirit of this disclosure, and various combinations can be made to the various technical features and structures proposed in this disclosure without exceeding the protection scope of this disclosure, which is determined by the appended claims.

Claims

1. A novel airtight fixture for an explosion-proof valve, comprising a fixture base (2) for connecting to an explosion-proof valve body (1), wherein the four corners of the explosion-proof valve body (1) are flanged, characterized in that, The lower part of the tooling base (2) has a notch (21) for inserting the explosion-proof valve body (1), and the lower part of the tooling base (2) is integrally provided with a fixing rib (22) for engaging with the four corner flanges of the explosion-proof valve body (1). The upper part of the tooling base (2) is detachably and fixedly connected with a base end cap (12), and a tooling slider (4) is slidably fitted inside the tooling base (2). The bottom of the tooling slider (4) is provided with a sealing ring groove (6) designed in the same shape as the sealing surface of the explosion-proof valve body (1), and the sealing ring groove (6) is inlaid with an interference fit sealing ring (7). The base end cover (12) is provided with a drive mechanism for driving the tooling slider (4) to move and block the airtight passage of the explosion-proof valve body (1). The drive mechanism includes a split-design slider pin (14) and slider handle (15). The inner sides of the slider pin (14) and slider handle (15) are connected by the same slider fixing bolt (16). The lower end of the slider fixing bolt (16) is threadedly connected to the top of the tooling slider (4). The base end cover (12) is provided with a contoured opening (18) for the slider pin (14) to pass through. The bottom of the base end cover (12) is provided with a base end cover slider guide rail (17) for contacting and engaging with the slider pin (14) when the slider pin (14) rotates, so that the slider pin (14) moves. The base end cover slider guide rail (17) is arc-shaped and its end is inclined. The top of the tooling slider (4) is integrally provided with an internal thread boss (41) for threaded connection with the lower end of the slider fixing bolt (16). The slider fixing bolt (16) is fitted with a plurality of spaced corrugated washer (10) and flat washer (11), which are located between the slider pin (14) and the internal thread boss (41). The upper part of the tooling slider (4) is detachably and fixedly connected to two annular permanent magnets (8) by permanent magnet fixing bolts (9), and the two annular permanent magnets (8) are symmetrically arranged. The position of the annular permanent magnets (8) corresponds to the position of the raised plane of the base end cover slider guide rail (17).

2. The novel explosion-proof valve airtight fixture according to claim 1, characterized in that, The tooling base (2) is provided with tooling base guide rail protrusions (3) on the inner walls of opposite sides, and the tooling slider (4) is provided with tooling slider guide rail grooves (5) for sliding cooperation with the tooling base guide rail protrusions (3).

3. The novel explosion-proof valve airtight fixture according to claim 1, characterized in that, The lower part of the slider handle (15) is provided with a dovetail groove, and the upper part of the slider pin (14) is provided with a dovetail protrusion, which is inserted into the dovetail groove.

4. The novel explosion-proof valve airtight fixture according to claim 1, characterized in that, The slider fixing bolt (16) includes an integrally formed cylindrical section and a threaded section, and the threaded section is threadedly connected to the internal thread boss (41). The slider pin (14) and the slider handle (15) are both fitted on the cylindrical section and can rotate.

5. A novel explosion-proof valve airtight fixture according to claim 1, characterized in that, The four corners of the base end cap (12) are fixedly connected to the tooling base (2) by base end cap fixing bolts (13).

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