Anti-explosion valve plug tool

Abstract

The utility model provides an explosion-proof valve plug tool which comprises a guide seat, a pressing head and a pressing rod, a guide groove is formed in the guide seat, the pressing head is arranged in the guide groove, an air groove matched with the shape of an explosion-proof valve is formed in the end, opposite to the guide groove, of the pressing head, a sealing groove surrounding the air groove is formed in the pressing head, and the pressing rod is arranged in the sealing groove. A sealing ring matched with the air groove in shape is arranged in the sealing groove, an adjusting hole communicated with the guide groove is formed in the guide seat, the pressing rod is movably inserted into the adjusting hole, and the pressing rod moves along the adjusting hole to push the pressing head to move towards the anti-explosion valve. The pressure heads of different specifications are arranged corresponding to the explosion-proof valves of different specifications, the air tightness detection of the explosion-proof valves can be carried out only by replacing the pressure heads, the whole plug does not need to be replaced, the operation is simple, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of battery pack testing equipment, in particular to an explosion-proof valve plugging tool. Background Art

[0002] When the battery pack box is tested for air tightness, the explosion-proof valve needs to be sealed. However, in the new energy vehicle industry, the appearance and capacity of battery packs vary, and the styles and sizes of explosion-proof valves on the battery packs are also different. When testing battery packs of different specifications, it is necessary to use plugs that match the outer dimensions of the explosion-proof valve for testing. That is, it is necessary to design multiple plugs to meet the air tightness testing requirements of the explosion-proof valve, which is too costly. Utility Model Content

[0003] The purpose of the present invention is to address the deficiencies of the above-mentioned existing technologies and propose an explosion-proof valve plug tooling, in which pressure heads of different specifications are set corresponding to explosion-proof valves of different specifications. The air tightness test of the explosion-proof valve can be carried out by simply replacing the pressure head, without replacing the overall plug, which is simple to operate and reduces production costs.

[0004] The utility model proposes an explosion-proof valve plugging tool, including a guide seat, a pressure head and a pressure rod, the guide seat is provided with a guide groove, the pressure head is arranged in the guide groove, the end of the pressure head facing away from the guide groove is provided with an air groove matching the shape of the explosion-proof valve, the pressure head is provided with a sealing groove surrounding the air groove, a sealing ring matching the shape of the air groove is provided in the sealing groove, the guide seat is provided with an adjustment hole connected to the guide groove, the pressure rod is movably inserted in the adjustment hole, and the pressure rod moves along the adjustment hole to push the pressure head to move toward the explosion-proof valve.

[0005] A better technical solution of the present utility model is as follows: the guide groove extends from the end surface of the guide seat toward the middle part of the guide seat, and the guide groove is communicated with the adjustment hole.

[0006] A better technical solution of the present invention is as follows: a positioning plate is provided on the guide seat, and the two positioning plates are symmetrically arranged about the guide groove. The two positioning plates are both arranged on the front side of the guide groove to connect the left and right ear plates of the explosion-proof valve.

[0007] A better technical solution of the present invention is that the two positioning plates are arranged and extended relative to each other, forming a closing opening in front of the guide groove to limit the left and right positions of the explosion-proof valve.

[0008] A better technical solution of the present invention is as follows: a cover plate is detachably provided on the top of the guide seat, a limit plate is provided on the cover plate, and the limit plate is located at the front side of the guide groove to limit the top of the explosion-proof valve.

[0009] A better technical solution of the utility model is as follows: the pressure head is provided with an air hole, the air hole is connected to the air groove, the air hole is provided with a joint for connecting to an air pipe, and the air pipe is connected to an external air source.

[0010] A better technical solution of the present utility model is as follows: a pipe is opened in the middle of the pressure rod, and the air pipe is placed in the pipe.

[0011] A better technical solution of the present utility model is as follows: an internal thread is provided in the adjusting hole, an external thread is provided on the pressure rod, and the guide seat is threadedly connected to the pressure rod.

[0012] A better technical solution of the present invention is that a plurality of pressure heads are provided, and the sizes and shapes of the air grooves on the plurality of pressure heads are different.

[0013] The utility model of an explosion-proof valve plugging tool has the following beneficial effects:

[0014] 1. There are multiple pressure heads according to the shape and size of the explosion-proof valve. Different pressure heads can correspond to explosion-proof valves of different specifications. The pressure heads are used in conjunction with the guide seat to perform air tightness testing on the explosion-proof valve. When performing air tightness testing on different explosion-proof lamps, only the pressure head needs to be replaced, and there is no need to replace the entire plug, which reduces production costs.

[0015] 2. The pressure head is set in the guide groove. Under the action of the pressure rod, the pressure head moves along the guide groove, presses the sealing ring on it, and seals the explosion-proof valve. A positioning plate is set on the front side of the guide groove to connect the explosion-proof valve to limit the left and right positions of the explosion-proof valve. A limit plate is set above the guide groove to abut the explosion-proof valve to limit the upper part of the explosion-proof valve. The pressure head can be inserted into the guide seat from the bottom, and the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated into and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention. In these drawings, similar reference numerals are used to represent similar elements. The drawings described below are some embodiments of the present invention, but not all. Those skilled in the art can derive other drawings from these drawings without inventive effort.

[0017] Figure 1 This is an exploded view of an explosion-proof valve connected to an embodiment of the present invention.

[0018] Figure 2 This is an exploded view of the connection between the guide seat and the pressure head in the embodiment of the present utility model.

[0019] Figure 3 This is a top view of the guide seat connected to the explosion-proof valve in an embodiment of the present utility model.

[0020] Figure 4 This is a schematic diagram of an embodiment of the present invention.

[0021] Figure 5 This is a schematic diagram of an embodiment of the present invention in which the pressure head has another shape and size.

[0022] In the figure: 10, guide seat; 101, guide groove; 102, adjustment hole; 11, positioning plate; 12, cover plate; 121, limit plate; 20, pressure head; 201, air groove; 202, sealing groove; 203, air hole; 21, sealing ring; 22, joint; 23, air pipe; 30, pressure rod; 301, pipeline; 31, fixing ring; 311, gap; 40, explosion-proof valve; 41, ear plate. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. It should be noted that, in the absence of conflict, the embodiments in this application and the features in the embodiments can be arbitrarily combined with each other.

[0024] See also Figures 1 to 5 A tool for plugging an explosion-proof valve includes a guide seat 10, a pressure head 20, and a pressure rod 30. The guide seat 10 is provided with a communicating guide groove 101 and an adjustment hole 102. The pressure head 20 is arranged in the guide groove 101. The pressure rod 30 is movably inserted in the adjustment hole 102. An air groove 201 is provided at one end of the pressure head 20 facing the explosion-proof valve 40. The air groove 201 matches the shape of the explosion-proof valve 40 to be tested. A sealing groove 202 is provided around the air groove 201. A sealing ring 21 is provided in the sealing groove 202. The pressure rod 30 moves along the adjustment hole 102 to press the pressure head 20 toward the explosion-proof valve 40, sealing the explosion-proof valve 40 to facilitate airtightness testing of the explosion-proof valve 40.

[0025] The guide groove 101 extends from the end surface of the guide seat 10 to the middle thereof. The depth of the guide groove 101 is greater than the thickness of the pressure head 20 so that the space within the guide groove 101 can meet the movement of the pressure head 20. Under the action of the pressure rod 30, the pressure head 20 can move along the guide groove 101 toward the explosion-proof valve 40, compress the sealing ring 21, and seal the explosion-proof valve 40.

[0026] The cross-sectional shape and size of the pressure head 20 should match the cross-sectional shape and size of the guide groove 101. When the pressure head 20 is located in the guide groove 101, the outer wall of the pressure head 20 is in contact with the inner wall of the guide groove 101, so that the guide groove 101 can form a limit in the circumferential direction of the pressure head 20, thereby preventing the pressure head 20 from shaking when moving in the guide groove 101, causing the pressure head 20 to be unable to align with the explosion-proof valve 40, thereby reducing the sealing effect. In this embodiment, the guide seat 10 and the pressure head 20 are both rectangular, the guide groove 101 is a square groove, and the cross-sectional shapes of the pressure head 20 and the guide groove 101 are both square. Figure 1 and Figure 2 As another embodiment, the guide groove 101 is a circular groove, the cross section of the pressure head 20 is circular, and the inner diameter of the guide groove 101 is the same as the outer diameter of the pressure head 20, as shown in FIG. Figure 5 shown.

[0027] An air groove 201 is provided at one end of the pressure head 20 facing the explosion-proof valve 40. The shape and size of the air groove 201 match the shape and size of the explosion-proof valve 40 to be tested. A sealing groove 202 is provided around the air groove 201. The sealing groove 202 and the air groove 201 are located on the same end face of the pressure head 20. A sealing ring 21 is provided in the sealing groove 202. During testing, the pressure head 20 is covered on the explosion-proof valve 40, and the air groove 201 is covered outside the explosion-proof valve 40, cooperating with the sealing ring 21 for sealing.

[0028] In the present application, a plurality of pressure heads 20 are provided, and the guide seat 10 cooperates with a single pressure head 20 to perform airtightness testing on a single explosion-proof valve 40. The external dimensions of different pressure heads 20 are the same, so that different pressure heads 20 can be inserted into the guide groove 101. The shapes and dimensions of the sealing grooves 202 on different pressure heads 20 are all different. The shapes and dimensions of the sealing grooves 202 on different pressure heads 20 are set according to the specifications of the explosion-proof valve 40 to be tested. When testing explosion-proof valves 40 of different specifications, it is only necessary to replace the pressure head 20 having the air groove 201 corresponding to the specifications of the explosion-proof valve 40 to be tested, install the pressure head 20 on the guide seat 10, and operate the pressure rod 30 to press the pressure head 20 to perform the test.

[0029] A positioning plate 11 for connecting the explosion-proof valve 40 is provided on the front side of the guide groove 101. Specifically, the two side walls of the guide seat 10 extend toward the front side of the guide groove 101. The two positioning plates 11 are respectively arranged at the end parts of the two side walls. The positioning plates 11 are spaced apart from the end faces of the guide groove 101. The two positioning plates 11 are symmetrically arranged about the central axis of the guide groove 101. The two positioning plates 11 extend relative to each other to form a closing end on the front side of the guide groove 101 for connecting the explosion-proof valve 40. Specifically, ear plates 41 are provided on both sides of the explosion-proof valve 40, and the guide seat 10 is sleeved on the explosion-proof valve 40 from top to bottom. The ear plates 41 are located on the inner side of the positioning plate 11, and along the axial direction of the guide groove 101, the ear plates 41 are in contact with the positioning plate 11, and the positioning plate 11 limits the explosion-proof valve 40 in the axial direction to prevent the guide seat 10 from axially separating from the explosion-proof valve 40; and the two side walls of the guide seat 10 are respectively located on the outside of the two ear plates 41 and in contact with the ear plates 41, forming stops on both sides of the ear plates 41, and then forming a limit in the left and right direction of the explosion-proof valve 40 to prevent the guide seat 10 from moving left and right relative to the explosion-proof valve 40, such as Figure 3 shown.

[0030] A cover plate 12 is removably mounted above the guide seat 10. A limit plate 121 is mounted on the cover plate 12 to limit the position of the explosion-proof valve 40. Specifically, when the cover plate 12 is mounted on the guide seat 10, the limit plate 121 is positioned between the two positioning plates 11 and abuts against the top of the explosion-proof valve 40. The limit plate 121 limits the position of the explosion-proof valve 40, preventing the guide seat 10 from moving downward relative to the explosion-proof valve 40.

[0031] During testing, the guide seat 10 is sleeved on the explosion-proof valve 40 from top to bottom, and the explosion-proof valve 40 is inserted into the guide seat 10 from the gap between the positioning plate 11 and the end face of the guide groove 101. The ear plate 41 is in contact with the positioning plate 11 in the axial direction of the guide groove 101, and in contact with the two side walls of the guide seat 10 in the left and right directions. At the same time, the top surface of the explosion-proof valve 40 is in contact with the cover plate 12 to support the guide seat 10, so that the guide seat 10 and the explosion-proof valve 40 are positioned and connected, which is convenient for subsequent airtight testing.

[0032] The distance between the positioning plate 11 and the end face of the guide groove 101 is equal to or slightly greater than the thickness of the pressure head 20, so that after the guide seat 10 is connected to the explosion-proof valve 40, during the tightening process of the pressure head 20, a part of the pressure head 20 is always located in the guide groove 101, and the guide groove 101 can provide support for the pressure head 20 to prevent the pressure head 20 from detaching from the guide groove 101.

[0033] When replacing the pressure head 20, remove the guide seat 10 from above the explosion-proof valve 40, separate the guide seat 10 from the explosion-proof valve 40, operate the pressure rod 30 to push the pressure head 20 to move outward along the guide groove 101 until it is completely disengaged from the guide groove 101, and the pressure head 20 is out of the gap between the positioning plate 11 and the end face of the guide groove 101, and the pressure head 20 can be replaced.

[0034] The adjustment hole 102 is connected to the guide groove 101 and passes through the two ends of the guide seat 10 respectively. The pressure rod 30 is movably arranged in the adjustment hole 102. The pressure rod 30 is operated to move along the adjustment hole 102. The end of the pressure rod 30 contacts the pressure head 20, pushing the pressure head 20 toward the explosion-proof valve 40 to achieve compression. Specifically, an internal thread is provided in the adjustment hole 102, and an external thread is provided on the outside of the pressure rod 30. The pressure rod 30 is threadedly connected to the wire holder. The pressure rod 30 is rotated to move along the adjustment hole 102. The end of the pressure rod 30 contacts the pressure head 20, pressing the pressure head 20 toward the explosion-proof valve 40, squeezing the sealing ring 21 to seal the explosion-proof valve 40, and locking the pressure rod 30 through the threaded connection to keep the pressure rod 30 in its stroke, thereby ensuring the sealing effect of the pressure head 20.

[0035] Preferably, a fixing ring 31 is sleeved on the pressure rod 30, and a gap 311 is opened on the fixing ring 31. The gap 311 penetrates the single-side wall thickness of the fixing ring 31, and connecting holes are provided on the two side walls of the gap 311. The two connecting holes are connected by bolts so that the fixing ring 31 holds the pressure rod 30 tightly. The fixing ring 31 forms a limit on the pressure rod 30 to limit the screw-in depth of the pressure rod 30.

[0036] The pressure head 20 is provided with an air hole 203, and the air hole 203 is provided with a joint 22. The joint 22 is connected to an air pipe 23, which is connected to an external air source. Gas is input into the air tank 201 through the air pipe 23 to perform an airtightness test on the explosion-proof valve 40. In this application, to facilitate the arrangement of the air pipe 23, a pipe 301 is opened inside the pressure rod 30. The pressure rod 30 has a hollow structure, and the air pipe 23 is arranged in the pipe 301 to supply gas to the air tank 201.

[0037] Finally, it should be noted that the above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art will appreciate that modifications may be made to the technical solutions described in the above embodiments, or that some of the technical features may be replaced with equivalents; and such modifications or replacements do not deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An explosion-proof valve plugging tool, characterized in that: The invention comprises a guide seat (10), a pressure head (20) and a pressure rod (30), wherein the guide seat (10) is provided with a guide groove (101), the pressure head (20) is arranged in the guide groove (101), an air groove (201) matching the shape of the explosion-proof valve (40) is provided at one end of the pressure head (20) facing away from the guide groove (101), the pressure head (20) is provided with a sealing groove (202) surrounding the air groove (201), a sealing ring (21) matching the shape of the air groove (201) is provided in the sealing groove (202), an adjustment hole (102) communicating with the guide groove (101) is provided on the guide seat (10), the pressure rod (30) is movably inserted in the adjustment hole (102), and the pressure rod (30) moves along the adjustment hole (102) to push the pressure head (20) to move toward the explosion-proof valve (40).

2. The explosion-proof valve plugging tool according to claim 1, characterized in that: The guide groove (101) extends from the end surface of the guide seat (10) toward the middle of the guide seat (10), and the guide groove (101) is communicated with the adjustment hole (102).

3. The explosion-proof valve plugging tool according to claim 2, characterized in that: A positioning plate (11) is provided on the guide seat (10), and the two positioning plates (11) are symmetrically arranged with respect to the guide groove (101). Both positioning plates (11) are arranged in front of the guide groove (101) to connect the left and right ear plates (41) of the explosion-proof valve (40).

4. The explosion-proof valve plugging tool according to claim 3, characterized in that: The two positioning plates (11) are arranged opposite to each other and extend relative to each other, forming a closing opening in front of the guide groove (101) to limit the explosion-proof valve (40) to the left and right.

5. The explosion-proof valve plugging tool according to claim 3, characterized in that: A cover plate (12) is detachably provided on the top of the guide seat (10), and a limit plate (121) is provided on the cover plate (12). The limit plate (121) is located in front of the guide groove (101) and is used to limit the top of the explosion-proof valve (40).

6. The explosion-proof valve plugging tool according to claim 1, characterized in that: The pressure head (20) is provided with an air hole (203), the air hole (203) is connected to the air groove (201), and the air hole (203) is provided with a joint (22) for connecting to an air pipe (23), and the air pipe (23) is connected to an external air source.

7. The explosion-proof valve plugging tool according to claim 6, characterized in that: A pipe (301) is provided in the middle of the pressure rod (30), and the air pipe (23) is placed in the pipe (301).

8. The explosion-proof valve plugging tool according to claim 1, characterized in that: An internal thread is provided in the adjustment hole (102), an external thread is provided on the pressure rod (30), and the guide seat (10) is threadedly connected to the pressure rod (30).

9. The explosion-proof valve plugging tool according to claim 1, characterized in that: A plurality of the pressure heads (20) are provided, and the air grooves (201) on the plurality of pressure heads (20) have different sizes and shapes.

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