Airtightness detection plugging tool

Abstract

The utility model discloses an airtightness detection plugging tool, and relates to the technical field of airtightness detection, the airtightness detection plugging tool is used for plugging a to-be-detected tool, the to-be-detected tool is provided with a plurality of to-be-detected terminals, the airtightness detection plugging tool comprises a support, a plugging assembly and a driving assembly, and the support is used for fixing the to-be-detected tool; the plugging assembly is movably installed on the support between a first position and a second position in a switchable mode, the plugging assembly abuts against and plugs the to-be-tested terminal at the first position, and the plugging assembly is separated from the to-be-tested terminal at the second position; the driving assembly is installed on the support, is in driving connection with the plugging assembly and is used for driving the plugging assembly to be movably switched between the first position and the second position. The driving assembly drives the blocking assembly to be movably switched between the first position and the second position, so that the blocking assembly abuts against and blocks the to-be-tested terminal at the first position and is separated from the to-be-tested terminal at the second position, in-place blocking can be conveniently achieved, and blocking operation is simplified.

Description

Technical Field

[0001] This application relates to the field of airtightness testing technology, and in particular to an airtightness testing and sealing tool. Background Technology

[0002] Products with high waterproofing requirements, such as photovoltaic inverters, need to undergo airtightness testing on their terminals. However, existing airtightness testing equipment requires manual sealing of each terminal under test, which presents difficulties due to the manual sealing process. Utility Model Content

[0003] The main purpose of this application is to propose an airtightness testing and sealing tooling, which aims to solve the problem of difficult sealing operations.

[0004] On one hand, an airtightness testing and sealing fixture is provided for sealing a fixture under test, wherein the fixture under test has multiple test terminals, and the airtightness testing and sealing fixture includes:

[0005] A bracket is used to fix the tooling to be tested.

[0006] A blocking assembly is movably mounted on the bracket between a first position and a second position. In the first position, the blocking assembly abuts against and blocks the terminal under test, and in the second position, the blocking assembly is separated from the terminal under test.

[0007] A drive assembly is mounted on the bracket and is driven to connect with the blocking assembly, for driving the blocking assembly to switch between a first position and a second position.

[0008] In one embodiment, the sealing assembly includes a support plate and an elastic sealing plate, the elastic sealing plate being disposed on the support plate, and the driving assembly being drivenly connected to the support plate.

[0009] In one embodiment, the elastic sealing plate has a first side surface, and the first side surface of the elastic sealing plate is provided with a plurality of limiting grooves, which are used to limit the insertion of a plurality of terminals of the test fixture.

[0010] In one embodiment, the drive assembly includes a telescopic rod and a toggle rod. The telescopic rod includes a guide portion extending along a first direction and a sliding portion slidably connected to the guide portion along the first direction. The guide portion is fixedly connected to the bracket, and the sliding portion is connected to the sealing assembly.

[0011] The actuating lever is connected to the sliding part in a transmission manner. The actuating lever can push or swing to drive the sliding part to slide along the first direction, thereby driving the blocking assembly to switch between the first position and the second position.

[0012] In one embodiment, the drive assembly includes a rotating connection portion, the actuating rod is rotatably connected to the rotating connection portion, and the rotating connection portion is divided into an actuating section and a transmission section. The actuating rod is rotatably connected to the guide portion through the rotating connection portion, and the transmission section is hinged to the sliding portion.

[0013] In one embodiment, the rotating connection includes a first connecting end and a second connecting end, the actuating rod is hinged to the first connecting end, and the second connecting end is hinged to the telescopic rod.

[0014] In one embodiment, the airtightness testing and sealing fixture further includes an electrical control device, which is electrically connected to the drive assembly and is used to control the operation of the drive assembly.

[0015] In one embodiment, there are multiple blocking components and multiple driving components, and the installation positions of the multiple driving components correspond one-to-one with the installation positions of the multiple blocking components.

[0016] In one embodiment, the bracket includes a connecting seat, a guide rail, and a first locking member. The driving assembly is disposed on the connecting seat, the guide rail extends along a second direction, the connecting seat is slidably mounted on the guide rail along the second direction, and a plurality of target positions are provided on the guide rail.

[0017] The first locking member is used to lock the connecting seat to a first target position on the guide rail, and can be unlocked.

[0018] In one embodiment, the drive assembly has a base, which is movably mounted on the connector along a first direction, and the connector is provided with a plurality of second target positions along the first direction;

[0019] The drive assembly further includes a second locking member, which is used to lock the base to a second target position on the connector and can be unlocked.

[0020] In one embodiment, the bracket has fixing positions at both ends for fixing the tooling to be tested.

[0021] The above-described one or more technical solutions in the embodiments of this application have at least one of the following technical effects:

[0022] The technical solution of this application improves the accuracy and reliability of operation by using a drive component to drive the sealing component to switch between a first position and a second position. When the sealing component is driven to move to the first position, the sealing component can seal all the terminals in place, which is used to effectively seal multiple terminals under test at the same time, effectively solving the problems of inability to seal in place and difficulty in sealing, and improving the accuracy and reliability of airtightness detection.

[0023] The sealing component is separated from the terminal under test in the second position; when the sealing component is driven to move to the second position, the sealing of all terminals is released. After the airtightness test is completed, the sealing component is driven to move to the second position by the driving component, so that the sealing component is separated from the terminal under test, effectively releasing the sealing of all terminals under test. This is convenient to operate, the overall operation is simple and easy to implement, and it effectively saves operation time. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application 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 some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0025] Figure 1 A schematic diagram illustrating an embodiment of the airtightness testing and sealing fixture provided in this application;

[0026] Figure 2 for Figure 1 A diagram from another perspective;

[0027] Figure 3 One of the partial structural schematic diagrams of an embodiment of the airtightness testing and sealing tooling provided in this application;

[0028] Figure 4 for Figure 3 A diagram from another perspective;

[0029] Figure 5 A second partial structural schematic diagram of an embodiment of the airtightness testing and sealing tooling provided in this application;

[0030] Figure 6 for Figure 5 A diagram from another perspective;

[0031] Figure 7 A third partial structural schematic diagram of an embodiment of the airtightness testing and sealing tooling provided in this application;

[0032] Figure 8 Fourth partial structural schematic diagram of an embodiment of the airtightness testing and sealing tooling provided in this application;

[0033] Figure 9 Fifth schematic diagram of a partial structure of an embodiment of the airtightness testing and sealing tooling provided in this application;

[0034] Figure 10A schematic diagram of the sealing component in a first position according to an embodiment of the airtightness testing sealing fixture provided in this application;

[0035] Figure 11 A schematic diagram of the sealing component in the second position of an embodiment of the airtightness testing sealing fixture provided in this application;

[0036] Figure 12 A schematic diagram of the sealing component in a first position according to another embodiment of the airtightness testing sealing fixture provided in this application;

[0037] Figure 13 This is a schematic diagram of the sealing component in a second position, representing another embodiment of the airtightness testing sealing fixture provided in this application.

[0038] Explanation of icon numbers:

[0039] 10. Fixture to be tested; 11. Terminal to be tested;

[0040] 100, bracket; 101, fixing position; 1011, fixing component; 102, first connecting part; 103, second connecting part; 104, locking component; 110, connecting seat; 111, first connecting position; 112, second target position; 120, guide rail; 121, first target position; 130, first locking component; 140, gasket;

[0041] 200, Sealing assembly; 201, Drive position; 210, Support plate; 220, Elastic sealing plate; 2201, First side surface; 221, Limiting groove; 222, Limiting post;

[0042] 300, drive assembly; 310, telescopic rod; 311, guide part; 312, sliding part; 320, actuating rod; 321, actuating section; 322, transmission section; 330, rotating connection part; 331, first connecting end; 332, second connecting end; 340, base; 341, second connecting position; 350, guide groove.

[0043] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0044] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0045] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0046] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0047] For photovoltaic inverters, which require an IPX6 or higher waterproof rating, the product itself, or related semi-finished products and assemblies, are generally used as test fixtures 10. During quality inspection or maintenance, the test terminals 11 of these test fixtures 10 need to be tested for air tightness. Related technologies use air tightness testing equipment to test the air tightness of the test terminals 11 of these test fixtures 10. During air tightness testing, the test terminals 11 need to be manually sealed. However, manual operation presents difficulties in sealing. Taking PV terminals as an example, each PV terminal is manually sealed using a special PV terminal plug. After sealing, an air tightness testing device is used to test the air tightness of the test terminal 11. However, this method results in a large number of plugs being consumed when testing a large number of PV terminals. Furthermore, because manual sealing of each PV terminal using special PV terminal plugs is difficult and can cause abrasions to the hands of personnel, it is also problematic.

[0048] To address the difficulty of sealing operations, some embodiments of this application propose an airtightness testing sealing fixture.

[0049] like Figure 1 , Figure 2 As shown, the airtightness testing and sealing fixture is used to seal the fixture 10 under test, which has multiple test terminals 11. The airtightness testing and sealing fixture includes a bracket 100, a sealing assembly 200, and a drive assembly 300.

[0050] The bracket 100 is used to fix the fixture 10 under test. Fixing the fixture 10 under test with the bracket 100 makes it easier to seal the multiple terminals 11 under test on the fixture 10 under test, and to a certain extent avoids the fixture 10 under test from moving during the sealing process and affecting the sealing effect.

[0051] The blocking component 200 is movably mounted on the bracket 100 between a first position and a second position. In the first position, the blocking component 200 abuts against and blocks the terminal under test 11. In the second position, the blocking component 200 is separated from the terminal under test 11. The first position represents the position where the blocking component 200 moves away from the bracket 100 and is closest to the terminal under test 11, and the second position represents the position where the blocking component 200 is furthest away from the terminal under test 11. The blocking component 200 can move between the first position and the second position.

[0052] For example, the fixture under test 10 includes multiple sets of terminals under test 11. Each set of terminals under test 11 includes one, two, three, or other multiple terminals under test 11. The multiple terminals under test 11 of the fixture under test 10 can be arranged in a matrix or in any other arbitrary form. Each blocking component 200 can be used to block all terminals under test 11 in a set, or to block some terminals under test 11 in a set; the specific configuration can be determined according to actual conditions and is not limited here.

[0053] like Figure 3 , Figure 4 As shown, the drive assembly 300 is mounted on the bracket 100 and is drivenly connected to the blocking assembly 200. The drive assembly 300 is used to drive the blocking assembly 200 to switch between a first position and a second position. By driving the blocking assembly 200 to move through the drive assembly 300, the reliance on manual labor can be reduced, the wear and tear on the operator's fingers caused by manual operation can be reduced, and the reliability of the test can be improved.

[0054] Compared to the previous method of manually sealing each terminal under test and then manually unsealing them after the airtightness test, this application uses a drive assembly 300 to move the sealing assembly 200 between a first position and a second position. When the sealing assembly 200 is moved to the first position, it can seal all the terminals under test 11 in place, allowing for simultaneous and effective sealing of multiple terminals under test. This eliminates the need for manual sealing of each terminal 11 individually, effectively solving the problems of incomplete sealing and difficulty in sealing, and improving the airtightness test efficiency. The accuracy and reliability of the test are ensured. The sealing component 200 is separated from the terminal under test 11 in the second position. When the sealing component 200 is moved to the second position, the sealing of all terminals under test 11 is released. This is used after the airtightness test is completed. The driving component 300 drives the sealing component 200 to the second position, separating the sealing component 200 from the terminal under test 11, effectively releasing the sealing of all terminals under test 11. This facilitates operation, simplifies the overall operation, and eliminates the need for manual removal of the sealing of each terminal under test 11, making it easy to implement and effectively saving operation time. The sealing component 300 can be used to seal multiple terminals under test, effectively reducing the consumption of sealing plugs caused by the need to set separate plugs for each terminal under test, thus reducing production costs.

[0055] Incomplete sealing can lead to inaccurate airtightness test results. Furthermore, the technology involves the centralized collection and repeated use of plugs removed after sealing, until these plugs no longer meet the sealing requirements before being disposed of. Because it is difficult to control the number of times plugs are used and to determine whether the sealing is complete, the technology is prone to misjudging airtightness tests due to incomplete sealing or faulty plug installation.

[0056] In the embodiments of this application, after the airtightness test is completed and the sealing component 200 is separated from the terminal under test 11, or after the sealing component 200 is disconnected from the fixture under test 10, the sealing component 200 can be calibrated using a colored pen or other marking pen. The position where the sealing component 200 abuts against and seals the terminal under test 11 in the first position will develop indentations due to repeated testing. By calibrating the position of the sealing component 200 abutting against and sealing the terminal under test 11, or by calibrating the position of the sealing component 200 relative to the driving component 300, it can be helpful to determine whether the wear of the sealing component 200 affects normal airtightness testing. For example, after the first use of the sealing component 200, the position of the sealing component 200 abutting against and sealing the terminal 11 under test can be calibrated to calibrate the thickness or position of the sealing component 200. Before each subsequent use, check whether the calibration marks have been worn away due to multiple tests, and perform normal airtightness testing when it is confirmed that there is no wear. Otherwise, repair or replace the sealing component 200 that has worn out. Alternatively, the position of the sealing component 200 relative to the driving component 300 in its first position during initial use can be calibrated. This calibration ensures the position of the sealing component 200 is accurate, as the distance between the calibrated mark and the driving component 300 will gradually increase after multiple tests. During subsequent uses, the calibrated mark should be checked for changes, and a normal airtightness test should be performed if no changes are detected. Conversely, if changes occur or exceed a preset threshold, the affected sealing component 200 should be repaired or replaced. For example, if the threshold is 0.5mm or another value, the affected sealing component 200 should be repaired or replaced if the distance between the calibrated mark and the driving component 300 is not less than 0.5mm or another value. By marking these components, sealing components 200 that cannot effectively seal can be identified, enabling effective control over them and mitigating false positives due to incomplete sealing or faulty installation of the plug, thus improving the reliability of airtightness testing.

[0057] like Figure 5 , Figure 6 As shown, in one embodiment, the blocking assembly 200 includes a support plate 210 and an elastic blocking plate 220, the elastic blocking plate 220 being disposed on the support plate 210, and the driving assembly 300 being drivenly connected to the support plate 210.

[0058] The elastic sealing plate 220 is fixed to the support plate 210 by means of bonding, snapping, or sleeve. Through the combined structure of the support plate 210 and the elastic sealing plate 220, the terminal 11 to be tested can be effectively sealed. The drive component 300 is driven to the support plate 210, which can drive the elastic sealing plate 220 on the support plate 210 to move, so that the sealing component 200 can switch between the first position and the second position. Taking the terminal under test 11 as a PV terminal as an example, in the first position, the elastic sealing plate 220 of the sealing assembly 200 abuts against and seals the terminal under test 11. Through the tight fit between the elastic sealing plate 220 and the terminal under test 11, it can, to a certain extent, prevent the terminal under test 11 from pushing the sealing assembly 200 away during the inflation stage of the air tightness test, which would lead to air leakage and affect the air tightness test effect and the reliability of the air tightness test result. In the second position, the elastic sealing plate 220 of the sealing assembly 200 is separated from multiple terminals under test 11 at the same time. This is to separate the sealing assembly 200 from multiple terminals under test 11 at the same time after the air tightness test is completed, simplifying the sealing operation and facilitating the sealing of the next air tightness test.

[0059] The flexible sealing plate 220 can have a length between 80mm and 150mm (e.g., 120mm, 125mm, 130mm, etc.), a width between 80mm and 150mm (e.g., 120mm, 125mm, 130mm, etc.), and a thickness between 10mm and 50mm (e.g., 20mm, 25mm, 30mm, etc.), depending on the actual application. The flexible sealing plate 220 can be made of, but is not limited to, polyurethane, plastic, silicone, or other materials suitable for practical use. The support plate 210 can be made of, but is not limited to, aluminum, copper, other metallic materials, or non-metallic materials.

[0060] In this embodiment, in addition to configuring the sealing component 200 as a structure consisting of a support plate 210 and an elastic sealing plate 220, the sealing component 200 can also be configured as a structure made of two materials with different hardnesses. One side of the sealing component 200 can be made of polyurethane or other elastic material, and the other side can be made of other materials with higher hardness. The specific configuration can be determined according to actual conditions and is not limited here.

[0061] like Figure 5 As shown, as an example, the resilient sealing plate 220 is configured as a flat plate.

[0062] In the first position, the elastic sealing plate 220 abuts against and seals the terminal 11 under test; in the second position, the elastic sealing plate 220 is separated from the terminal 11 under test. This allows for the sealing of multiple terminals 11 under test, utilizing the flexibility and sealing properties of the elastic material of the elastic sealing plate 220 to seal a single or multiple terminals 11 under test. The structure is simple and easy to operate. After the airtightness test is completed and the sealing assembly 200 is separated from the terminal 11 under test, or after the sealing assembly 200 is disconnected from the test fixture 10, the position of the indentation where the elastic sealing plate 220 abuts against and seals the terminal 11 under test can be marked when calibrating the sealing assembly 200 with a colored pen or other marking pen.

[0063] like Figure 5 As shown, as another example, the resilient sealing plate 220 has a first side surface 2201. The first side surface 2201 of the resilient sealing plate 220 has one or more limiting grooves 221.

[0064] Each limiting slot 221 is used to limit the insertion of one terminal 11 under test; or, each limiting slot 221 is used to limit the insertion of multiple adjacent terminals 11 under test.

[0065] For example, the first side 2201 of the elastic sealing plate 220 is provided with a plurality of limiting grooves 221, which are used to limit the insertion of a plurality of terminals 11 to be tested of the test fixture 10.

[0066] In this embodiment, the limiting groove 221 can be a groove provided on the first side 2201 of the elastic sealing plate 220, extending from the first side 2201 of the elastic sealing plate to the middle of the elastic sealing plate 220; or, the first side 2201 of the elastic sealing plate 220 can be provided with multiple limiting posts 222, and the limiting groove 221 can be provided on these limiting posts 222. In the first position, the limiting groove 221 of the elastic sealing plate 220 limits the insertion of the terminal 11 to be tested corresponding to the fixture 10 under test, and the limiting groove 221 abuts against and seals the terminal 11 to be tested; in the second position, the limiting groove 221 of the elastic sealing plate 220 releases the insertion limitation on the corresponding terminal 11 to be tested, and the elastic sealing plate 220 is separated from the terminal 11 to be tested. In this way, it is suitable for sealing multiple terminals 11 to be tested. The limiting groove 221 is designed to match the geometry (such as size and contour) of the limiting groove 221 with the terminal 11 to be tested. Through the contour design of the limiting groove 221, it can not only be used to physically block the terminal 11 to be tested, but also play a partial guiding role for the terminal 11 to be tested, thereby avoiding displacement of the terminal 11 to a certain extent, achieving accurate alignment of the terminal 11 to be tested, effectively solving the problem of incomplete blocking, and improving the stability and reliability of the blocking process.

[0067] After the airtightness test is completed and the sealing component 200 is separated from the terminal under test 11, or after the sealing component 200 is disconnected from the fixture under test 10, when the sealing component 200 is calibrated with a colored pen or other marking pen, the position of the limiting groove 221 and the position of the terminal under test 11 in the limiting groove 221 that abuts and seals it can be calibrated; alternatively, when the limiting groove 221 is located at the limiting post 222, the position of the limiting post 222 relative to the driving component 300 in the first position can be calibrated; the specific settings can be made according to actual conditions and are not limited here.

[0068] In other embodiments of this application, in addition to providing multiple limiting grooves 221 on the first side 2201 of the elastic sealing plate 220 as described above, it is also possible to provide one limiting groove 221 on the first side 2201 of the elastic sealing plate 220. One limiting groove 221 is used to limit the insertion of at least one terminal 11 of the fixture 10 under test, and to limit the insertion of at least one terminal 11 of the fixture 10 under test through the limiting groove 221; or, the support plate 210 is provided with a limiting post (or limiting groove) for engaging the elastic sealing plate 220. The limiting post (or limiting groove) is used not only for mounting the elastic sealing plate 220, but also for limiting the insertion of at least one terminal 11 of the fixture 10 under test; the specific configuration can be based on actual conditions and is not limited here.

[0069] In some embodiments of this application, the blocking component 200 may be independently disposed on the bracket 100 relative to the driving component 300, and the blocking component 200 may be directly fixed to the bracket 100 by means of a support plate 210, a mounting plate or other connecting structure; or, the blocking component 200 may be connected to the driving component 300, and the blocking component 200 may be fixed to the bracket 100 by means of the driving component 300.

[0070] like Figure 5 , Figure 6 As shown, the sealing assembly 200 has a drive position 201 in the middle. The drive assembly 300 can drive the sealing assembly 200 to move through the drive part such as the telescopic rod 310. The drive position 201 can be a slot, a snap-fit, or other structure to realize the connection between the drive assembly 300 and the support plate 210. When the drive position 201 is configured as a slot, the slot is provided on the side of the support plate 210 opposite to the elastic sealing plate 220 and penetrates a portion of the support plate 210. Alternatively, the slot can penetrate the sealing assembly 200 (including the support plate 210 and the elastic sealing plate 220).

[0071] In other embodiments of this application, the sealing assembly 200 may include, in addition to the aforementioned support plate 210 and elastic sealing plate 220, a mounting plate, mounting base, or other mounting portion. When a mounting portion is provided, the sealing assembly 200 can be directly fixed to the bracket 100 via the mounting portion; or, the mounting portion can be fixed to the bracket 100 via the drive assembly 300. The moving direction of the elastic sealing plate 220 is defined by a first direction D1. When a mounting plate is used as the mounting portion, the mounting plate has a mounting groove extending along the first direction D1. The support plate 210 and the elastic sealing plate 220 connected to the support plate 210 are movably fitted as a whole onto the mounting groove (not shown) of the mounting plate for movement along the first direction D1. When the driving part of the drive assembly 300, such as the telescopic rod 310, moves closer to the sealing assembly 200, it passes through the mounting plate and drives the elastic sealing plate 220 of the sealing assembly 200 to abut against and seal the terminal to be tested 11; the driving part of the drive assembly 300, such as the telescopic rod 310, drives the sealing assembly 200 to move away from the terminal to be tested 11, and drives the elastic sealing plate 220 to separate from the terminal to be tested 11, so that the support plate 210 connected to the elastic sealing plate 220 is retracted into the mounting groove of the mounting plate; the specific structure of the sealing assembly 200 can be set according to the actual situation, and is not limited here.

[0072] In the embodiments of this application, the sealing component 200 can be moved by manually controlling the drive component 300; or, the airtightness testing sealing fixture also includes an electronic control device such as a cylinder, which is connected to the drive component 300 to drive the sealing component 200 to move.

[0073] In one embodiment, the airtightness testing sealing fixture also includes an electrical control device (not shown), which is electrically connected to the drive assembly 300 and used to control the operation of the drive assembly 300. By sending electrical signals to control the operation of the drive assembly 300 (such as a motor), the actuator 320 is driven to push or swing, further enabling the sealing assembly 200 to quickly switch between a first position and a second position. Controlling the operation of the drive assembly 300 by the electrical control device can also reduce operational errors that may be introduced by manual operation and fatigue that may occur during long-term operation. Controlling the operation of the drive assembly 300 by electrical signals can also shorten the response time and improve testing efficiency.

[0074] In addition, when multiple drive components 300 are provided, the operation of multiple drive components 300 can be controlled by the same electronic control device; or, the operation of multiple drive components can be controlled separately by different electronic control devices.

[0075] like Figure 5 , Figure 6 As shown, in one embodiment, there are multiple blocking components 200 and multiple driving components 300, and the installation positions of the multiple driving components 300 correspond one-to-one with the installation positions of the multiple blocking components 200.

[0076] The distance between adjacent blocking components 200 can be the same or different. A blocking component 200 can be independently mounted on the bracket 100 relative to the drive component 300, or the blocking component 200 can be connected to the drive component 300. When the blocking component 200 is independently mounted on the bracket 100 relative to the drive component 300, the position of the blocking component 200 can be adjusted according to the actual test fixture 10, and the position of the drive component 300 can be adjusted accordingly. When the blocking component 200 can be connected to the drive component 300, the position of the drive component 300 can be adjusted according to the actual test fixture 10, and the position of the blocking component 200 can be adjusted simultaneously.

[0077] The installation positions of the drive assembly 300 and the blocking assembly 200 correspond one-to-one, enabling each drive assembly 300 to accurately act on its corresponding blocking assembly 200, effectively improving the accuracy and reliability of motion transmission. When each blocking assembly 200 can block a group of terminals 11 under test, the arrangement of multiple blocking assemblies 200 and multiple drive assemblies 300 allows for the simultaneous blocking of multiple groups of terminals 11 under test. This improves work efficiency, reduces operation time, and meets the needs of automated production or large-scale testing.

[0078] When each sealing component 200 can seal a group of terminals 11 under test, the driving component 300 can be detachably mounted on the bracket 100. This is used to set the distance between multiple driving components 300 according to the distance between the multiple groups of terminals 11 under test of the corresponding fixture 10. The number of driving components 300 and sealing components 200 can be the same as or different from the number of multiple groups of terminals 11 under test of the fixture 10. The distance between multiple driving components 300 can be adjusted, or the distance between multiple driving components 300 can be relatively fixed. Specific settings can be made according to actual conditions and are not limited here.

[0079] like Figure 5 , Figure 6 As shown, in one embodiment, the bracket 100 includes a connecting seat 110, a guide rail 120, and a first locking member 130. A drive assembly 300 is disposed on the connecting seat 110. The guide rail 120 extends along a second direction D2. The connecting seat 110 is slidably mounted on the guide rail 120 along the second direction D2. A plurality of first target positions 121 are provided on the guide rail 120. The first locking member 130 is used to lock the connecting seat 110 to the first target positions 121 on the guide rail 120 and can be unlocked.

[0080] The second direction D2 intersects with the first direction D1, and the second direction D2 can be perpendicular to the first direction D1. The first direction D1 and the second direction D2 are located on the same horizontal plane. The connecting seat 110 can provide stable support and fixed position for at least one drive component 300. Multiple first target positions 121 on the guide rail 120 allow the connecting seat 110 to be fixed at different positions on the guide rail 120. The sliding connection between the connecting seat 110 and the guide rail 120 allows the drive component 300 to move along the guide rail 120 (second direction D2), thereby realizing position adjustment. The first locking element 130 can be, but is not limited to, a bolt or a clamp. The first locking element 130 on the connecting seat 110 can lock the position of the drive assembly 300 on the guide rail 120. When the position needs to be adjusted, the first locking element 130 is released, and the connecting seat 110 can slide along the guide rail 120. After reaching the target position, the first locking element 130 is tightened to fix the connecting seat 110 on the guide rail 120, thereby realizing the position adjustment of the drive assembly 300 in the second direction D2.

[0081] The first target position 121 can be, but is not limited to, multiple connecting holes, connecting grooves, or oblong holes spaced apart on the guide rail 120 along its length. Taking a connecting groove on the guide rail 120 as an example, the connecting seat 110 has a first connecting position 111. A first locking member 130 passes through the first connecting position 111 of the connecting seat 110 and the first target position 121 on the guide rail 120. When position adjustment is needed, the first locking member 130 is released, allowing the connecting seat 110 to move along the connecting groove. After reaching the target position, the first locking member 130 is tightened, locking the first connecting position 111 of the connecting seat 110 to the corresponding position of the connecting groove, thereby achieving position adjustment of the drive assembly 300 in the second direction D2. A shim 140 or other connecting piece can be provided on the base 340 corresponding to the first connecting position 111 to ensure a stable connection between the base 340 and the connecting seat 110.

[0082] It should be noted that there are multiple drive components 300. The base 340 at the bottom of each drive component 300 can serve as a connecting seat 110, allowing the drive component 300 to slide relative to the guide rail 120. Alternatively, two, three, or more drive components 300 can be mounted together on a connecting seat 110, which is used to adjust the position of all drive components 300 in the second direction D2 through a connecting seat 110.

[0083] In the embodiments of this application, after the airtightness test is completed and the sealing component 200 is separated from the terminal under test 11, or after the sealing component 200 is disconnected from the fixture under test 10, the positions of the sealing component 200, drive component 300, etc., can be calibrated using a colored pen or other marking pen. Because the installation position of the drive component 300 corresponds one-to-one with the installation position of the sealing component 200, the position of the sealing component 200 can be determined after determining the position of the drive component 300; and vice versa. Taking the calibration of the drive component 300 as an example, the position of the drive component 300 on the bracket 100 (or on the guide rail 120) is calibrated, that is, the position of the connecting seat 110 locked on the guide rail 120 is calibrated. Before each subsequent use, the markings of the calibrated position are checked for changes, and normal airtightness testing is performed when no changes are found; conversely, if changes occur, the position of the changed drive component 300 is adjusted or repaired / replaced.

[0084] like Figure 7 As shown, in one embodiment, the bracket 100 has fixing positions 101 at both ends, which are used to fix the tooling 10 to be tested.

[0085] For example, the bracket 100 has fixing positions 101 at both ends. The fixing positions 101 can be, but are not limited to, screw holes, snap-fit ​​grooves, or, corresponding to the fixing positions 101, snap-fit ​​components, locking buckles, connecting sleeves, or other connection structures suitable for actual use, to fix the fixture 10 under test. When the fixing positions 101 are configured as screw holes or other connection positions, the fixture 10 under test can be fixed to the bracket 100 by passing screws or other fasteners through it; the specific configuration can be determined according to actual needs and is not limited here. By setting fixing positions 101 at both ends of the bracket 100, the fixture 10 under test can be stably fixed, so that the sealing component 200 can stably abut against and seal the terminal 11 under test in the first position, avoiding displacement of the terminal 11 under test or positional deviation between the sealing component 200 and the terminal 11 under test, which would affect the sealing effect.

[0086] The bracket 100 has a fixing member 1011, a first connecting part 102, a second connecting part 103, and a locking member 104 at both ends. The fixing position 101 is provided on the fixing member 1011, and the fixing member 1011 is connected to the first connecting part 102. The first connecting part 102 is located at the end of the guide rail 120. The second connecting part 103 is provided on the first connecting part 102 by means of snap-fit, sleeve, etc. The locking member passes through the second connecting part 103 and connects and fixes the first connecting part 102 to the guide rail 120. The specific structure of the bracket 100 can be set according to the actual situation, and is not limited here.

[0087] In addition, in some other embodiments of this application, besides setting fixing positions 101 at both ends of the bracket 100, fixing positions 101, supports, brackets or other fixing structures can also be set at any position such as the bottom, top, and side of the bracket 100, so as to fix the test fixture 10 and avoid the connection and fixing of the test fixture 10 from affecting the sealing work of the sealing component 200.

[0088] like Figure 8 As shown, in one embodiment, the drive assembly 300 includes a base 340, which is movably mounted on a connecting seat 110 along a first direction D1. The connecting seat 110 is provided with a plurality of second target positions 112 along the first direction D1. The drive assembly 300 also includes a second locking member, which is used to lock the base 340 to the second target positions 112 on the connecting seat 110 and can be unlocked.

[0089] Multiple second target positions 112 on the connecting seat 110 allow the base 340 to be locked in different positions on the connecting seat 110. The sliding connection between the base 340 and the connecting seat 110 allows the drive assembly 300 to move along the first direction D1, thereby realizing the position adjustment of the drive assembly 300 in the first direction D1. The second locking member can be, but is not limited to, a bolt or a clamp. The second locking member on the base 340 can lock the position of the drive assembly 300 on the connecting seat 110. When the position needs to be adjusted, the second locking member is released, and the base 340 can move along the first direction D1 on the connecting seat 110. After reaching the target position, the second locking member is tightened to fix the base 340 on the connecting seat 110, thereby realizing the position adjustment of the drive assembly 300 in the first direction D1.

[0090] The second target position 112 can be, but is not limited to, multiple connecting holes, connecting grooves, or oblong holes spaced at intervals along the first direction D1 on the connecting seat 110. Taking the second target position 112 as a connecting groove on the connecting seat 110 as an example, the connecting seat 110 is provided with a second connecting position 341. The second locking member passes through the second connecting position 341 of the connecting seat 110 and the second target position 112 on the connecting seat 110. When the position needs to be adjusted, the second locking member is released, and the connecting seat 110 can move along the connecting groove. After reaching the target position, the second locking member is tightened to lock and fix the second connecting position 341 of the connecting seat 110 to the corresponding position of the connecting groove, thereby realizing the position adjustment of the drive assembly 300 in the first direction D1.

[0091] In the embodiments of this application, after the airtightness test is completed and the sealing component 200 is separated from the terminal under test 11, or after the sealing component 200 is disconnected from the fixture under test 10, the position of the drive component 300 can be calibrated using a colored pen or other marking pen. By calibrating the position of the drive component 300 on the connector 110, that is, by calibrating the position of the connector 110 locked on the connector 110, the markings at the calibrated position are checked for changes before each subsequent use, and normal airtightness testing is performed when no changes are found; otherwise, if changes occur, the position of the changed drive component 300 is adjusted or repaired or replaced.

[0092] like Figure 8 , Figure 9 As shown, in one embodiment, the drive assembly 300 includes a telescopic rod 310 and a toggle rod 320. The telescopic rod 310 includes a guide portion 311 extending along a first direction D1 and a sliding portion 312 slidably connected to the guide portion 311 along the first direction D1. The guide portion 311 is fixedly connected to the bracket 100, and the sliding portion 312 is connected to the sealing assembly 200. The guide portion 311 may be provided with a guide rail, which can be configured as any structure such as cylindrical, annular, or semi-cylindrical. The guide portion 311 is connected and fixed to the bracket 100 (or connected and fixed to the connecting seat 110 provided on the bracket 100) by welding, bonding, snap-fitting, etc., to provide stable support. The setting of the guide portion 311 allows the sliding portion 312 to move linearly along the first direction D1, which to a certain extent avoids the sliding portion 312 from being offset. The sliding part 312 is defined by the first direction D1. Driven by the lever 320, the sliding part 312 reciprocates along the first direction D1 and drives the sealing component 200 to move by pushing, pulling and other means.

[0093] like Figure 8 , Figure 9 As shown, the toggle lever 320 is connected to the sliding part 312 in a transmission manner. The toggle lever 320 can push or swing to drive the sliding part 312 to slide along the first direction D1, so as to drive the sealing assembly 200 to switch between the first position and the second position.

[0094] Understandably, the actuating lever 320 and the sliding part 312 are connected in a transmission manner. Specifically, but not limited to, the actuating lever 320 and the sliding part 312 are fixedly connected, and the connection between the actuating lever 320 and the sliding part 312 is L-shaped, T-shaped, or any other structure suitable for actual use, so that when the actuating lever 320 is pushed or pulled, the sliding part 312 can be driven to slide along the first direction D1 through the actuating lever 320; or, the actuating lever 320 and the sliding part 312 are connected by a hinge or other means, so that when the actuating lever 320 is swung, the sliding part 312 can be driven to slide along the first direction D1 through the actuating lever 320; or, the actuating lever 320 is connected to the sliding part 312 through an elastic element such as a spring or compression spring, or other connecting structure, so that when the actuating lever 320 is pushed or swung, the sliding part 312 can be driven to slide along the first direction D1 through the actuating lever 320. The specific connection method between the actuating lever 320 and the sliding part 312 can be set according to actual needs and is not limited here.

[0095] The lever 320 converts external operating force (such as manual or motor-driven) into linear motion of the sliding part 312 by pushing or swinging. The sliding of the sliding part 312 drives the sealing assembly 200 to move, switching it from a first position to a second position or vice versa. Taking the lever 320 pushing to drive the sliding part 312 to slide along the first direction D1 as an example, the lever 320 can move directly along the first direction D1 to directly push the sliding part 312 to drive it to slide along the first direction D1. Taking the lever 320 swinging to drive the sliding part 312 to slide along the first direction D1 as an example, the lever 320 can rotate around a fulcrum such as a connecting shaft, converting the rotational motion into linear motion of the sliding part 312 through the lever principle, thereby driving the sliding part 312 to slide along the first direction D1.

[0096] By pushing or swinging the lever 320, the sliding part 312 moves along the first direction D1 from the second position to the first position. The sliding part 312 moves along the guide part 311 towards the terminal 11 under test, causing the sealing component 200 to abut against and seal the terminal 11 under test. By pushing or swinging the lever 320, the sliding part 312 moves along the first direction D1 from the first position to the second position. The sliding part 312 moves along the guide part 311 away from the terminal 11 under test, causing the sealing component 200 to separate from the terminal 11 under test. By pushing or swinging the lever 320, the sliding part 312 slides along the guide part 311, causing the sealing component 200 to move and switch to the first position, the second position, and different positions between the first and second positions. This achieves precise switching of the sealing component 200 between different positions, thereby achieving the sealing and separation of the terminal and improving the reliability and stability of the sealing operation.

[0097] It should be noted that in some other embodiments of this application, elastic elements such as springs can be provided. These elastic elements can be located at any position, such as the guide portion 311, the sliding portion 312, or between the actuating rod 320 and the sliding portion 312. This allows the sealing component 200 of the airtightness testing sealing fixture to be in the second position by default, and the actuating rod 320 can drive the sealing component 200 to switch positions. The actuating rod 320 can be equipped with a locking element or other locking structure to lock when pushed or swung to a fixed position and stop driving the sliding portion 312.

[0098] like Figure 8 , Figure 9 As shown, in one embodiment, the drive assembly 300 includes a rotating connection portion 330, a toggle lever 320 is rotatably connected to the rotating connection portion 330, and the rotating connection portion 330 is divided into a toggle section 321 and a transmission section 322. The toggle lever 320 is rotatably connected to the guide portion 311 through the rotating connection portion 330, and the transmission section 322 is hinged to the sliding portion 312.

[0099] The rotating connection 330 serves as a connecting component between the actuating lever 320 and the guide portion 311, allowing the actuating lever 320 to rotate around an axis, thereby transmitting motion. The rotating connection 330 may include, but is not limited to, bearings and hinges. When the actuating segment 321 is pushed or swung by manual operation or an electronic control device, the actuating segment 321 can rotate around it. The rotational motion of the actuating lever 320 is transmitted to the sliding portion 312 through the transmission segment 322, thereby achieving linear motion of the sliding portion 312. This causes the sliding portion 312 to slide along the guide portion 311, driving the sealing assembly 200 to switch between a first position and a second position. The actuating lever 320 is divided into an actuating segment 321 and a transmission segment 322 at the rotating connection 330. The transmission segment 322 and the actuating lever 320 are segmented. The transmission segment 322 can amplify the input force of the actuating segment 321, achieving labor-saving operation and, to a certain extent, preventing air leakage due to inadequate sealing during airtightness testing.

[0100] In other embodiments of this application, the number of rotating connecting parts 330 can be one or more, and the number of toggle levers 320 is set accordingly to realize synchronous control of the sliding part 312 through multiple angles or other multiple work positions; or, through multiple work positions, the switching operation between manual operation by the user and drive by the electric control device can be realized; the specific settings can be made according to actual conditions, and are not limited here.

[0101] like Figure 10 , Figure 11As shown, in one embodiment, the rotating connection 330 includes a first connecting end 331 and a second connecting end 332. The actuating rod 320 is hinged to the first connecting end 331, and the second connecting end 332 is hinged to the telescopic rod 310. The actuating rod 320 is connected to the rotating connection 330 via the hinge. When the actuating rod 320 rotates around the first connecting end 331, the rotation of the actuating rod 320 is transmitted to the second connecting end 332 through the rotating connection 330. The rotation of the second connecting end 332 drives the telescopic rod 310 to extend and retract in a linear direction, thereby realizing the conversion and transmission of motion. The rotational motion of the actuating rod 320 is converted into the linear motion of the telescopic rod 310, allowing the guide part 311 to extend and retract in a linear direction, and further realizing the movement control of the sealing assembly 200. Through the hinge design, it can also be adapted to different installation angles and spatial settings, achieve labor-saving operation, and to a certain extent avoid air leakage due to inadequate sealing during airtightness testing.

[0102] A spring or other elastic element can be installed here, and the elastic element can be located near the telescopic rod 310; or, the elastic element can be located between the actuating rod 320 and the guide part 311; or, when the guide part 311 is located on the base 340 of the drive assembly 300, the elastic element can be located between the actuating rod 320 and the base 340; the specific location of the elastic element can be set according to the actual situation to further improve the accuracy of the movement control of the telescopic rod 310; no limitation is made here.

[0103] like Figure 12 , Figure 13As shown, in some other embodiments of this application, the rotating connection portion 330 may also be configured as a connecting hole, connecting shaft, etc., disposed on the toggle lever 320 or the guide portion 311. The toggle lever 320 is rotatably connected to the guide portion 311 and the sliding portion 312 through the rotating connection portion 330. The angle of the guide portion 311 relative to the rotating connection portion 330 is adjustable (or the connection position between the guide portion 311 and the rotating connection portion 330 is movable). The actuating lever 320 is divided into an actuating section 321 and a transmission section 322 at the rotating connection 330. The guide section 311 is provided with a guide groove 350 corresponding to the position of the transmission section 322. When the actuating section 321 rotates, it drives the transmission section 322 to rotate in a direction away from the guide section 311, causing the transmission section 322 to extend into and abut against the guide groove 350, and causing the rotating connection 330 to rotate in a direction away from the guide section 311. The rotating connection 330 drives the telescopic rod 310 to move to the second position. When the actuating section 321 rotates, it drives the transmission section 322 to rotate in a direction toward the guide section 311, causing the transmission section 322 to extend out of the guide groove 350, and the rotating connection 330 rotates toward the guide section 311 and drives the telescopic rod 310 to move to the first position. The guide groove 350 and the transmission section 322 work together to convert the rotational motion of the lever 320 into the linear motion of the telescopic rod 310. At the same time, the guide groove 350 limits the movement of the transmission section 322, making the movement trajectory more accurate, improving the stability and reliability of the movement, achieving labor-saving operation, and to a certain extent avoiding air leakage due to inadequate sealing during airtightness testing.

[0104] A spring or other elastic element can be installed here. The elastic element can be positioned between the rotating connection 330 and the guide 311; or between the actuating lever 320 and the guide 311; or, when the guide 311 is located on the base 340 of the drive assembly 300, the elastic element can be positioned between the actuating lever 320 and the base 340. The specific position of the elastic element can be determined according to actual conditions to further improve the accuracy of the movement control of the telescopic lever 310. Besides setting the guide groove 350 on the guide 311, when the guide 311 is located on the base 340 of the drive assembly 300, the guide groove 350 can also be set on the base 340 of the drive assembly 300 corresponding to the position of the transmission section 322; or, the guide groove 350 can be set on other connection positions between the drive assembly 300 and the bracket 100; no limitations are imposed here.

[0105] The specific structure of the rotating connection 330 can be set according to the actual application and is not limited here.

[0106] Specific implementation details of some embodiments of this application are as follows:

[0107] Install the airtightness testing sealing fixture and the test fixture 10 together. Rotate and lock the toggle lever 320 toward the test terminal 11. Push or swing the toggle lever 320 to move the sliding part 312 from the second position to the first position along the first direction D1. The sliding part 312 moves along the guide part 311 toward the test terminal 11, so that the sealing component 200 abuts against and seals the test terminal 11. After ensuring that the elastic sealing plate 220 is tightly fitted with the insertion position of the test terminal 11, perform airtightness testing using a standard airtightness qualified product. After the airtightness test is qualified, remove the test fixture 10 and use a colored pen to mark the thickness of the elastic sealing plate 220 and the position of the drive component 300. Before each subsequent use, check whether the markings at the marked positions have changed. If there is no change, install the airtightness testing sealing fixture and the test fixture 10 and perform normal testing. Otherwise, repair or replace the parts at the changed points.

[0108] This greatly reduces the operation time and cumbersome process of installing plugs for each terminal under test, and makes it easier to distinguish whether they are installed correctly, effectively improving the efficiency of plugging. It also eliminates the need for matching plugs, saving procurement costs, and enables plugging of different types of terminals under test, improving compatibility. By using calibration marks to identify in advance whether maintenance or spare parts replacement is needed, it can also ensure reliable and stable test results to a certain extent.

[0109] The above description is merely an exemplary embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the technical concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A hermetic detection plugging tool for plugging a tool under test (10) having a plurality of terminals under test (11), characterized in that, The air tightness detection plugging tool comprises: a support (100) for fixing a to-be-tested tool (10); a plugging assembly (200) movably switched between a first position and a second position and mounted on the support (100), the plugging assembly (200) abuts and plugs the to-be-tested terminal (11) in the first position, and the plugging assembly (200) is separated from the to-be-tested terminal (11) in the second position; a driving assembly (300) mounted on the support (100) and drivingly connected with the plugging assembly (200) for driving the plugging assembly (200) to move and switch between the first position and the second position.

2. The hermetic detection plug tool of claim 1, wherein, The plugging assembly (200) comprises a support plate (210) and an elastic plugging plate (220), the elastic plugging plate (220) is arranged on the support plate (210), and the driving assembly (300) is drivingly connected with the support plate (210).

3. The hermetic detection plug tool of claim 2, wherein, The elastic plugging plate (220) has a first side (2201), and a plurality of limiting grooves (221) are arranged on the first side (2201) of the elastic plugging plate (220) for limiting the plurality of to-be-tested terminals (11) of the to-be-tested tool (10).

4. The hermetic detection plug tool of claim 1, wherein, The driving assembly (300) comprises a telescopic rod (310) and a push rod (320), the telescopic rod (310) comprises a guide portion (311) extending in a first direction (D1) and a sliding portion (312) slidingly connected with the guide portion (311) in the first direction (D1), the guide portion (311) is fixedly connected with the support (100), and the sliding portion (312) is connected with the plugging assembly (200). The push rod (320) is in transmission connection with the sliding portion (312), and the push rod (320) is pushed or swung to drive the sliding portion (312) to slide in the first direction (D1), so as to drive the plugging assembly (200) to move and switch between the first position and the second position.

5. The hermetic detection plug tool of claim 4, wherein, The driving assembly (300) comprises a rotating connection portion (330), the push rod (320) is in rotating connection with the rotating connection portion (330), and the rotating connection portion (330) is divided into a push segment (321) and a transmission segment (322) at the rotating connection portion (330), the push rod (320) is in rotating connection with the guide portion (311) through the rotating connection portion (330), and the transmission segment (322) is hinged with the sliding portion (312).

6. The hermetic detection plug tool of claim 5, wherein, The rotating connection portion (330) comprises a first connecting end (331) and a second connecting end (332), the push rod (320) is hinged with the first connecting end (331), and the second connecting end (332) is hinged with the telescopic rod (310).

7. The hermetic detection plug tool of claim 1, wherein, The air tightness detection plugging tool further comprises an electric control device, the electric control device is in electrical connection with the driving assembly (300) for controlling the working of the driving assembly (300).

8. The hermetic detection plug tool of claim 1, wherein, The plurality of blocking assemblies (200) and the plurality of driving assemblies (300) are one-to-one corresponding in mounting position.

9. The hermetic detection plug tool of any one of claims 1 to 8, wherein, The support (100) comprises a connecting seat (110), a guide rail (120) and a first locking member (130), the driving assembly (300) is arranged on the connecting seat (110), the guide rail (120) extends along a second direction (D2), the connecting seat (110) is slidably mounted on the guide rail (120) along the second direction (D2), and a plurality of first target positions (121) are arranged on the guide rail (120). The first locking member (130) is used for locking the connecting seat (110) on the first target position (121) of the guide rail (120) and can be unlocked.

10. The hermetic detection plug tool of claim 9, wherein, The driving assembly (300) is provided with a base (340), the base (340) is movably mounted on the connecting seat (110) along a first direction (D1), and the connecting seat (110) is provided with a plurality of second target positions (112) along the first direction (D1). The driving assembly (300) further comprises a second locking member, and the second locking member is used for locking the base (340) on the second target position (112) of the connecting seat (110) and can be unlocked.

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