An air-tight tooling

Abstract

The utility model discloses an airtight frock, including upper pressure board and lower pressure board, one side of lower pressure board is provided with the support plate, and the top of support plate is horizontally provided with the support groove, and is provided with two first clamping plates, two second clamping plates and transmission mechanism on the support plate, two first clamping plates are located at the both sides of the wire harness respectively, and the side wall of each first clamping plate is in abutment with the side wall of wire harness, and is provided with the driving piece of driving second clamping plate lifting on each first clamping plate, and two second clamping plates are located at the both sides of wire harness and are in abututment with wire harness, the utility model discloses simple structure, and reasonable in design, when the wire harness of different diameter size is detected, through the driving source, the staff adjusts the distance between two transmission blocks, and two first clamping plates and second clamping plate synchronous movement, and first clamping plate and second clamping plate are in abutment with the side wall of wire harness all the time, thereby promote the stability of wire harness, adapt to the wire harness of different size, expand the use range, and the staff operation is convenient.

Description

Technical Field

[0001] This utility model relates to the technical field of sealing testing equipment, specifically an airtight tooling. Background Technology

[0002] An airtightness test fixture, also known as an airtightness testing fixture or leak test jig, is a specialized device or apparatus used to test the sealing performance of wire harnesses. By simulating changes in pressure, vacuum, or flow rate, it accurately determines whether there is a gas leak in the tested component. The core function of an airtightness test fixture is to quantify the sealing performance, ensuring that the product meets quality, safety, and industry standard requirements.

[0003] The shortcomings of existing technology:

[0004] The aforementioned airtight fixture includes an upper pressure plate, a lifting mechanism, a lower pressure plate, a clamping ring, and a testing component located on the processing table. The upper pressure plate is located at the top of the wire harness and abuts against it. The lifting mechanism is connected to the upper pressure plate and drives it to rise and fall to a set position before pressing against the wire harness. The testing component is connected to the upper pressure plate and is used to test the airtightness of the wire harness. The lower pressure plate is located at the bottom of the wire harness and abuts against it. The clamping ring is located on one side of the lower pressure plate, is fitted onto the wire harness, and clamps and limits its movement. When the operator performs an airtightness test on the wire harness, the wire harness is transferred to the lower pressure plate after passing through the clamping ring. The lifting mechanism then raises and lowers the upper pressure plate until it abuts against the wire harness. The testing component then performs the airtightness test on the wire harness. When testing wire harnesses of different diameters, the operator needs to adjust the size of the clamping ring to accommodate different diameters. This process requires the operator to disassemble and replace the clamping ring, which is time-consuming and labor-intensive, thus affecting the testing efficiency. Utility Model Content

[0005] The purpose of this invention is to provide an airtight tooling to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An airtight tooling includes an upper pressure plate and a lower pressure plate located on a processing table. A support plate is provided on one side of the lower pressure plate, and a support groove is horizontally formed on the top of the support plate. Two first clamping plates, two second clamping plates, and a transmission mechanism are provided on the support plate. The two first clamping plates are respectively located on both sides of a wire harness. The bottom of each first clamping plate is slidably connected to the support plate, and the sidewall of each first clamping plate abuts against the sidewall of the wire harness. Each first clamping plate is provided with a driving component for driving the second clamping plates to rise and fall. The two second clamping plates are respectively located on both sides of the wire harness and abut against the wire harness. Each second clamping plate is located on top of the first clamping plate. The transmission mechanism includes:

[0008] Two transmission blocks, each corresponding to one of the two first clamping plates, one side of each transmission block extends into the support groove and is slidably connected to the side wall of the support groove, and the other side of each transmission block is connected to the first clamping plate.

[0009] A transmission source is located in a clamping slot and is connected to a transmission block and is used to drive the transmission block to move.

[0010] Preferably, the bottom of the support plate has a vertical groove, the vertical groove is located in the middle of the support plate and communicates with the support groove, and the transmission source includes:

[0011] A rotating shaft is located inside a vertical groove and is rotatably connected to the side wall of the vertical groove. The side wall of the rotating shaft extends to the outside of the support plate. Both ends of the rotating shaft are coaxially provided with threaded grooves.

[0012] The transmission screw has two parts, and the two transmission screws are located on both sides of the rotating shaft. One end of each transmission screw extends into the threaded groove and is threadedly connected to the side wall of the threaded groove. The other end of the transmission screw is threaded through the transmission block.

[0013] Preferably, the driving component includes:

[0014] The first horizontal plate has two plates, and the two first horizontal plates are located on both sides of the wire harness respectively. Each first horizontal plate is connected to the side of the first clamping plate away from the wire harness.

[0015] There are two second horizontal plates, and the two second horizontal plates are located at both ends of the wire harness respectively. Each second horizontal plate is connected to the side of the first clamping plate away from the wire harness. Each second horizontal plate is located on top of the first horizontal plate, and a rotating ring is rotatably provided on the top of each second horizontal plate.

[0016] There are two drive screws, and each drive screw corresponds to one of the two first horizontal plates. The bottom of each drive screw is rotatably connected to the top of the first horizontal plate, and the other end of each drive screw passes through and is rotatably connected to the second horizontal plate. The top of each drive screw is threadedly connected to the inner wall of the rotating ring.

[0017] Preferably, a rotating groove is horizontally formed on the outer side wall of each rotating ring, and a limiting block and a pushing member are provided on each second horizontal plate. The limiting block is located at the top of the second horizontal plate and is slidably connected to the second horizontal plate. The limiting block is used to insert into the side wall of the rotating groove, and the pushing member is connected to the limiting block and is used to push the limiting block to move.

[0018] Preferably, the pushing member includes:

[0019] A vertical plate is located on top of and connected to the second horizontal plate. A push rod is provided on the vertical plate. One end of the push rod is connected to the side wall of the limiting block, and the other end of the push rod passes through the vertical plate and is slidably connected to the vertical plate.

[0020] A push spring is sleeved on a push rod, one end of which is connected to the side wall of the vertical plate, and the other end of which is connected to the side wall of the limiting block.

[0021] Preferably, each of the first clamping plate and the second clamping plate has a flexible layer on the side near the wire harness.

[0022] Preferably, the bottom of the limiting block is provided with a ball bearing, one side of which is connected to the limiting block, and the other side of which is in contact with the top of the second horizontal plate.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] 1. This airtight tooling, through a support plate, a first clamping plate, a second clamping plate, a driving component, and a transmission mechanism on one side of the lower pressure plate, allows the operator to adjust the transmission mechanism when inspecting wire harnesses of different diameters. This causes the two transmission blocks to move in a direction that brings them closer or further apart, thereby driving the two first clamping plates and the two second clamping plates to move synchronously. This adjusts the distance between the two first clamping plates to accommodate wire harnesses of different diameters, eliminating the need to disassemble and replace the clamping connecting plates, saving the operator's workload, time, and effort.

[0025] 2. This airtight tooling, by incorporating ball bearings, transforms the sliding friction between the bottom of the limiting block and the second horizontal plate into rolling friction, thereby reducing wear between the limiting block and the second horizontal plate and extending the service life of the limiting block. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a partial structural schematic diagram of the present invention, mainly showing the vertical groove;

[0028] Figure 3 This is an exploded view of part of the structure of this utility model, mainly showing the driving component;

[0029] Figure 4 This is an exploded view of part of the structure of this utility model, mainly showing the pushing component.

[0030] In the diagram: 1. Processing table; 11. Upper pressure plate; 12. Lower pressure plate; 2. Support plate; 21. Support groove; 22. Vertical groove; 31. First clamping plate; 32. Second clamping plate; 33. Flexible layer; 4. Transmission mechanism; 41. Transmission block; 42. Transmission source; 421. Rotating shaft; 422. Transmission screw; 5. Driving component; 51. First horizontal plate; 52. Second horizontal plate; 53. Driving screw; 54. Rotating ring; 61. Rotating groove; 62. Limiting block; 63. Ball bearing; 7. Pushing component; 71. Vertical plate; 72. Push rod; 73. Push spring; 8. Limiting rod; 91. Lifting component; 92. Detection component. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integrated connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" means two or more, unless otherwise explicitly specified.

[0035] Please see Figure 1-4 As shown, this utility model provides an airtight tooling technical solution:

[0036] An airtight fixture includes a processing table 1. An upper pressure plate 11, a lifting component 91, a lower pressure plate 12, and a detection component 92 are mounted on the processing table 1. The upper pressure plate 11 is located inside the processing table 1 and is slidably connected to it in a vertical direction. The upper pressure plate 11 is positioned at the top of a wire harness, and its bottom is used to abut against the wire harness. The lifting component 91 is located inside the processing table 1, connected to the upper pressure plate 11, and used to drive the upper pressure plate 11 to move vertically. The lower pressure plate 12 is located below the upper pressure plate 11, its bottom is fixedly connected to the top of the processing table 1, and its top abuts against the wire harness. The detection component 92 is located at the top of the processing table 1, connected to the upper pressure plate 11, and used to detect the airtightness of the wire harness.

[0037] Several support plates 2 are installed on one side of the lower pressure plate 12. The support plates 2 are evenly distributed along the length of the lower pressure plate 12, and the sidewall of each support plate 2 is detachably connected to the lower pressure plate 12 by bolts. Each support plate 2 has a horizontal support groove 21 at its top and a vertical groove 22 at its bottom. The vertical groove 22 is located in the middle of the support plate 2 and communicates with the support groove 21. A transmission mechanism 4, a first clamping plate 31, a driving component 5, and a second clamping plate 32 are installed on the support plate 2. The transmission mechanism 4 includes a transmission source 42 and a transmission block 41. The transmission source 42 includes a rotating shaft 421 and a transmission rod. The driving component 5 includes a first horizontal plate 51, a second horizontal plate 52, a rotating ring 54, and a driving screw 53.

[0038] A horizontally positioned rotating shaft 421 is rotatably connected to the side wall of a vertical groove 22, and the bottom of the rotating shaft 421 extends beyond the support plate 2. Anti-slip grooves are provided on the side wall of the rotating shaft 421 to facilitate rotation by the operator. Both ends of the rotating shaft 421 are coaxially threaded grooves. There are two transmission screws 422, located at opposite ends of the rotating shaft 421. One end of each transmission screw 422 extends into the threaded groove and is slidably connected to the side wall of the threaded groove. The other end of each transmission screw 422 is threadedly connected to a transmission block 41. There are two horizontally positioned transmission blocks 41, corresponding one-to-one with the two transmission screws 422. Each transmission block 41 is located within the support groove 21 and is slidably connected to the side wall of the support groove 21. There are two first clamping plates 31 and two second clamping plates 32. The two first clamping plates 31 and the two second clamping plates 32 correspond one-to-one with the two transmission blocks 41. The inclined first clamping plates 31 are fixedly connected to the top of the transmission blocks 41. The top of the first clamping plates 31 is fixedly connected to the side wall of the first horizontal plate 51. The horizontal first horizontal plate 51 is located above the support plate 2. The vertically arranged drive screw 53 is located at the top of the first horizontal plate 51 and is rotatably connected to the first horizontal plate 51. The horizontal second horizontal plate 52 is located at the top of the first horizontal plate 51. The second horizontal plate 52 is sleeved on the drive screw 53 and is slidably connected to the drive screw 53, so that the second horizontal plate 52 can rise and fall in the vertical direction. A limit rod 8 is installed at the bottom of the second horizontal plate 52. The top of the vertically arranged limit rod 8 is fixedly connected to the bottom of the second horizontal plate 52. The bottom of the limit rod 8 passes through the first horizontal plate 51 and is slidably connected to the first horizontal plate 51. A horizontally positioned rotating ring 54 is located at the top of the second horizontal plate 52 and is rotatably connected to it. The rotating ring 54 is sleeved on the drive screw 53 and threadedly connected to it. An inclined second clamping plate 32 is located at the top of the first clamping plate 31, with the two clamping plates located on opposite sides of the wire harness. The bottom of the second clamping plate 32 is fixedly connected to the side wall of the second horizontal plate 52. A flexible layer 33 is installed on the side of the second clamping plate 32 and the first clamping plate 31 closest to the wire harness. The flexible layer 33 is made of rubber. One side of the flexible layer 33 is bonded to the side wall of the first clamping plate 31 and the second clamping plate 32, and the other side of the flexible layer 33 abuts against the side wall of the wire harness.

[0039] When the operator performs an airtightness test on the wire harness, the harness is transferred from the support plate 2 to the lower pressure plate 12. The flexible layer 33 on the first clamping plate 31 and the second clamping plate 32 clamps and limits the wire harness, preventing it from moving freely during the airtightness test and thus improving measurement accuracy. When the operator tests wire harnesses of different sizes, the positions of the first clamping plate 31 and the second clamping plate 32 need to be adjusted to accommodate different diameters. In this case, the operator adjusts the rotating shaft 421, causing it to rotate. This causes the two transmission screws 422 to rotate synchronously, resulting in the two transmission blocks 41 moving synchronously in directions that bring them closer together or further apart. This, in turn, moves the first clamping plate 31 synchronously until the flexible layer 33 on the first clamping plate 31 abuts against the sidewall of the wire harness with the different diameters. Meanwhile, the staff adjusts the rotating ring 54, and under the limiting action of the limiting rod 8, the second horizontal plate 52 rises and falls vertically, thereby driving the second clamping plate 32 and the flexible layer 33 to move synchronously until the flexible layer 33 on the second clamping plate 32 comes into contact with the wire harness. The wire harness is clamped and limited by the first clamping plate 31 and the second clamping plate 32, making it difficult for the wire harness to move arbitrarily during testing, thus expanding the range of applications. Moreover, it eliminates the need for staff to disassemble and replace the first clamping plate 31 and the second clamping plate 32 to accommodate wire harnesses of different diameters, saving the staff's workload and facilitating the staff's testing.

[0040] To ensure that the second horizontal plates 52 on both sides of the wire harness move at the same height, allowing them to move synchronously and thus ensuring that the second clamping plates 32 on both sides of the wire harness rise and fall at the same height, thereby improving the stability of the wire harness, a rotating groove 61 is horizontally provided on the outer wall of the rotating plate. A pushing component 7 and a limiting block 62 are installed on the top of the second horizontal plate 52. The pushing component 7 includes a vertical plate 71, a pushing rod 72, and a pushing spring 73. The vertically arranged vertical plate 71 is located on one side of the rotating ring 54 and is fixed to the top of the second horizontal plate 52. The connection is as follows: one end of the horizontally positioned push rod 72 passes through and is slidably connected to the vertical plate 71, and the other end of the push rod 72 is fixedly connected to the side wall of the limiting block 62. The horizontally positioned limiting block 62 is T-shaped and is used to insert into the rotating groove 61 on the rotating ring 54. A ball bearing 63 is installed on the bottom of the limiting plate. One side of the ball bearing 63 is rotatably connected to the bottom of the limiting block 62, and the other side of the ball bearing 63 contacts the top of the second horizontal plate 52, thereby reducing wear between the limiting block 62 and the second horizontal plate 52. A horizontally positioned push spring 73 is sleeved on the push rod 72. One end of the push spring 73 is fixedly connected to the side wall of the limiting block 62, and the other end of the push spring 73 is fixedly connected to the side wall of the vertical plate 71. When the operator adjusts the rotating ring 54, they pull the push rod 72, causing the limiting block 62 to disengage from the side wall of the rotating groove 61, thus facilitating the rotation of the rotating ring 54. The operator then releases the push rod 72, and under the influence of the elastic potential energy of the push spring 73, the push rod 72 moves the limiting block 62 towards the rotating ring 54 until the side wall of the limiting block 62 abuts against the outer side wall of the rotating ring 54. At this point, the operator adjusts the rotating ring 54, causing it to rotate one revolution, until the limiting block 62 re-engages with the rotating groove 61. This process is repeated. This operation is repeated multiple times. The number of times the push rod 72 is adjusted by the operator determines the number of rotations of the rotating ring 54. This ensures that the rotating ring 54 on the other side of the wire harness rotates the same number of times, thus ensuring that the rotating rings 54 on both sides of the wire harness rotate the same number of times. Consequently, the two second horizontal plates 52 and the two second clamping plates 32 on both sides of the wire harness are transported to the same height, thereby improving the stability of the wire harness. This also makes it less likely for there to be a height difference between the two second clamping plates 32, making it less likely for the wire harness to slip during testing. This further improves the stability of the wire harness and thus enhances the accuracy of the testing.

[0041] The working principle of this utility model is as follows:

[0042] In this embodiment, when the airtight fixture is in use, the operator transmits the wire harness through the support plate 2 to the space between the lower pressure plate 12 and the upper pressure plate 11. The wire harness is clamped and limited by the first clamping plate 31 and the second clamping plate 32 at the top of the support plate 2, so that the wire harness is not easy to move during the test. When inspecting wire harnesses of different diameters, the operator adjusts the rotating shaft 421, causing it to rotate and drive the transmission screw 422 to move synchronously. This, in turn, moves the two transmission blocks 41 in directions that bring them closer together or further apart, thereby causing the two first clamping plates 31 and the first horizontal plate 51 to move synchronously. Through the drive screw 53 and the rotating ring 54, the second horizontal plate 52 and the second clamping plate 32 move synchronously with the first horizontal plate 51. Then, the operator adjusts the push rod 72, causing it to move away from the rotating ring 54. This causes the limiting block 62 to move synchronously, disengaging it from the rotating groove 61 on the rotating ring 54, thus facilitating the operator's adjustment of the rotating ring 54. When the operator releases the push rod 72, the elastic potential energy of the push spring 73 causes the side wall of the limiting block 62 to disengage from the rotating ring 54. The outer wall of 4 abuts against the wire harness. After the rotating ring 54 rotates once, the limiting block 62 is inserted into the rotating groove 61 again. The operator repeats this operation until the second horizontal plate 52 and the second clamping plate 32 are transmitted to the set height and then abut against the wire harness. The number of times the operator pulls the push rod 72 is the number of rotations of the rotating ring 54. This allows the rotating ring 54 on the other side of the wire harness to rotate the same number of times, so that the second horizontal plate 52 and the second clamping plate 32 on both sides of the wire harness are transmitted to the same height. This makes it less likely that there will be a height difference between the clamping plates on both sides of the wire harness. This allows the flexible layer 33 on the two first clamping plates 31 and the two second clamping plates 32 to clamp and limit the wire harness, improve the stability of the wire harness, and adapt to wire harnesses of different diameters, thus expanding the range of applications. Moreover, it eliminates the need for the operator to disassemble and replace the clamping ring, making it convenient for the operator to operate and adjust, and improving the testing efficiency.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An airtight tooling, comprising an upper pressure plate (11) and a lower pressure plate (12) located on a processing table (1), wherein a support plate (2) is provided on one side of the lower pressure plate (12), and a support groove (21) is horizontally opened on the top of the support plate (2). The support plate (2) is provided with two first clamping plates (31), two second clamping plates (32) and a transmission mechanism (4). The two first clamping plates (31) are respectively located on both sides of the wire harness. The bottom of each first clamping plate (31) is slidably connected to the support plate (2), and the side wall of each first clamping plate (31) abuts against the side wall of the wire harness. Each first clamping plate (31) is provided with a driving component (5) for driving the second clamping plate (32) to rise and fall. The two second clamping plates (32) are respectively located on both sides of the wire harness and abut against the wire harness. Each second clamping plate (32) is located on top of the first clamping plate (31). The transmission mechanism (4) includes: Two transmission blocks (41) are provided, and the two transmission blocks (41) correspond one-to-one with the two first clamping plates (31). One side of each transmission block (41) extends into the support groove (21) and is slidably connected to the side wall of the support groove (21). The other side of each transmission block (41) is connected to the first clamping plate (31). A transmission source (42) is located in a clamping slot. The transmission source (42) is connected to the transmission block (41) and is used to drive the transmission block (41) to move.

2. A gas-tight tooling according to claim 1, characterized in that: The bottom of the support plate (2) is vertically provided with a vertical groove (22), the vertical groove (22) is located in the middle of the support plate (2) and communicates with the support groove (21), and the transmission source (42) includes: A rotating shaft (421) is located in a vertical groove (22) and is rotatably connected to the side wall of the vertical groove (22). The side wall of the rotating shaft (421) extends to the outside of the support plate (2). Both ends of the rotating shaft (421) are coaxially provided with threaded grooves. There are two transmission screws (422), and the two transmission screws (422) are located on both sides of the rotating shaft (421). One end of each transmission screw (422) extends into the threaded groove and is threaded to the side wall of the threaded groove. The other end of the transmission screw (422) is threaded through the transmission block (41).

3. A gas containment tool as defined in claim 1, wherein: The driving component (5) includes: There are two first horizontal plates (51), and the two first horizontal plates (51) are located on both sides of the wire harness respectively. Each first horizontal plate (51) is connected to the side of the first clamping plate (31) away from the wire harness. There are two second horizontal plates (52), and the two second horizontal plates (52) are located at both ends of the wire harness respectively. Each second horizontal plate (52) is connected to the side of the first clamping plate (31) away from the wire harness. Each second horizontal plate (52) is located at the top of the first horizontal plate (51). A rotating ring (54) is rotatably provided at the top of each second horizontal plate (52). There are two drive screws (53), and each drive screw (53) corresponds to one of the two first horizontal plates (51). The bottom of each drive screw (53) is rotatably connected to the top of the first horizontal plate (51). The other end of each drive screw (53) passes through the second horizontal plate (52) and is rotatably connected to the second horizontal plate (52). The top of each drive screw (53) is threadedly connected to the inner wall of the rotating ring (54).

4. A gas-tight tooling according to claim 3, wherein: Each of the rotating rings (54) has a horizontally formed rotating groove (61) on its outer side wall. Each of the second horizontal plates (52) is provided with a limiting block (62) and a pushing member (7). The limiting block (62) is located at the top of the second horizontal plate (52) and is slidably connected to the second horizontal plate (52). The limiting block (62) is used to insert into the side wall of the rotating groove (61). The pushing member (7) is connected to the limiting block (62) and is used to push the limiting block (62) to move.

5. A gas-tight tooling according to claim 4, wherein: The pusher (7) includes: A vertical plate (71) is located at the top of the second horizontal plate (52) and connected to the second horizontal plate (52). A push rod (72) is provided on the vertical plate (71). One end of the push rod (72) is connected to the side wall of the limiting block (62), and the other end of the push rod (72) passes through the vertical plate (71) and is slidably connected to the vertical plate (71). A push spring (73) is sleeved on a push rod (72). One end of the push spring (73) is connected to the side wall of the vertical plate (71), and the other end of the push spring (73) is connected to the side wall of the limiting block (62).

6. The airtight tooling according to claim 1, characterized in that: Each of the first clamping plate (31) and the second clamping plate (32) has a flexible layer (33) on the side near the wire harness.

7. A gas containment tool as defined in claim 4, wherein: The bottom of the limiting block (62) is provided with a ball (63), one side of the ball (63) is connected to the limiting block (62), and the other side of the ball (63) is in contact with the top of the second horizontal plate (52).

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