Connector waterproof test tool

By designing the sealing part and locking column structure in the connector waterproof test tooling, the sealing problem of the uninstalled plug-in test interface is solved, ensuring the accuracy and reliability of the test results, and improving the testing efficiency and versatility.

CN223217028UActive Publication Date: 2025-08-12SOLAR POWER NETWORK TECHNOLOGY (ZHEJIANG) CO LTD
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Patent Information

Application Number
CN202422075970.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-26
Publication Date
2025-08-12
Estimated Expiration
2034-08-26

AI Technical Summary

Technical Problem

The existing waterproof test tooling for connectors has poor sealing at the test interface where the connectors are not installed, resulting in water easily entering the waterproof test tooling, affecting the accuracy of the test results.

Method used

A waterproof test tool for connectors is designed, including a test housing and a sealing part. The sealing part is removably fixed to the test housing through a locking part to seal the test interface. It adopts an elastic sealing plate and locking column structure to ensure that the test interface without connectors is not leaked.

Benefits of technology

Effectively prevent water from entering the housing cavity from the test interface without connectors, ensuring the accuracy and reliability of test results, improving testing efficiency, and being versatile and flexible.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a waterproof test tool for a connector. The waterproof test tool for the connector comprises a test shell and a sealing part. An accommodating cavity is formed in the test shell, a plurality of test interfaces for mounting connectors are formed in the test shell, and the test interfaces are communicated with the accommodating cavity. The number of the sealing parts is multiple, the sealing parts and the testing interfaces are arranged in a one-to-one correspondence mode, and all the sealing parts are detachably and fixedly connected to the testing shell through the locking parts so as to seal the testing interfaces. According to the invention, the problem that the sealing performance of the test hole without the plug connector is poor is solved.
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Description

Technical Field

[0001] The present application relates to the technical field of waterproof testing devices, and in particular to a connector waterproof testing tool. Background Art

[0002] A battery energy storage system consists of a large number of single cells connected in series and parallel to form a complete battery energy storage system, capable of storing and releasing a certain amount of electrical energy. Many households both domestically and internationally are equipped with outdoor energy storage emergency equipment. Users can assemble modules to meet specific storage requirements to achieve different energy storage capacities. During module assembly, electrical energy and signals are transmitted through connectors. The waterproof performance of these connectors directly affects the circuit performance of the outdoor energy storage emergency equipment. Therefore, outdoor energy storage emergency equipment places high demands on the waterproofness of these connectors. Currently, water immersion testing is commonly used to test the waterproofness of the connectors.

[0003] However, when conducting water immersion testing on connectors using existing connector waterproof testing tools, the test interface where no connector is installed must be sealed to prevent water from entering the waterproof testing tool through this interface. However, during actual testing, the sealing of the test interface where no connector is installed is poor, allowing water to easily flow into the waterproof testing tool through the test interface, affecting the accuracy of the connector waterproof test results. Utility Model Content

[0004] The main purpose of the present application is to provide a connector waterproof test tool to improve the problem of poor sealing of the test hole without a connector installed mentioned in the background art.

[0005] According to one aspect of the present application, a connector waterproof testing tool is provided, comprising:

[0006] A test housing, wherein the test housing is provided with a receiving cavity and a plurality of test interfaces for installing connectors are provided on the test housing, and the test interfaces are communicated with the receiving cavity;

[0007] The sealing part includes a plurality of sealing parts, and the plurality of sealing parts are provided in a one-to-one correspondence with the plurality of test interfaces, and each of the sealing parts is detachably fixedly connected to the test housing through a locking part to seal the test interface.

[0008] Furthermore, the sealing portion includes:

[0009] an elastic sealing plate, the elastic sealing plate being snap-fitted into the test housing and covering the corresponding test interface;

[0010] A locking column is fixedly connected to the elastic sealing plate, and has a first position in which the locking column is locked with the locking portion and a second position in which the locking column is separated from the locking portion.

[0011] Furthermore, the locking portion includes an elastic component and a slot, one of the elastic component and the slot is provided on the locking column, and the other is provided on the test housing.

[0012] Furthermore, the elastic component includes a first elastic member and a blocking block, the extension direction of the first elastic member is perpendicular to the axial direction of the locking column, and the first elastic member is located on the side of the blocking block away from the locking column, the blocking block is fixed to one end of the first elastic member close to the locking column, and the blocking block abuts and engages with the slot.

[0013] Furthermore, the clamping block is provided with an upper guide slope and a lower guide slope that are connected to each other.

[0014] Furthermore, a plurality of mounting grooves are provided on the test shell, and the plurality of mounting grooves are provided in one-to-one correspondence with the plurality of test interfaces, and each of the test interfaces is located at the bottom surface of the mounting groove, the elastic sealing plate is engaged in the mounting groove, and a plug-in groove is also provided in the mounting groove, the locking portion is provided on the side wall of the plug-in groove, the depth of the plug-in groove extends along the axial direction of the locking column, and when the locking column is in the first position, the locking column is inserted into the plug-in groove and locked by the locking portion.

[0015] Furthermore, the connector waterproof testing tool also includes:

[0016] A connecting block, the connecting block being fixed to the test housing and provided with a dovetail groove;

[0017] A counterweight block is provided with a protrusion adapted to the dovetail groove, and the counterweight block is connected to the dovetail groove via the protrusion.

[0018] A counterweight block is adapted to the dovetail groove, and the counterweight block is connected to the connecting block via the dovetail groove.

[0019] Furthermore, a built-in groove is provided on one of the inner wall of the dovetail groove and the counterweight block, and a ball groove is provided on the other of the two. A second elastic member and a sphere are provided in the built-in groove. The second elastic member is located on the side of the sphere close to the bottom surface of the built-in groove, and the sphere is located at the groove mouth of the built-in groove to abut and engage with the ball groove.

[0020] Furthermore, the test housing is provided with a hanging ear, and the hanging ear includes at least one, and the hanging ear is provided with a perforation.

[0021] Furthermore, at least one transparent observation window is provided on the test housing.

[0022] In the present application, when the waterproof test of the connector is carried out, the connector to be tested is installed in the test interface that matches the connector to be tested, and then the remaining test interfaces are sealed by the sealing part to prevent water from entering the accommodating cavity from the test interface where the connector is not installed, and finally the connector waterproof test tool is immersed in water for a period of time. Afterwards, the waterproof performance of the connector to be tested can be obtained by observing whether there is water in the accommodating cavity. If there is water in the accommodating cavity, the waterproof performance of the connector to be tested is poor. If there is no water in the accommodating cavity, the waterproof performance of the connector is better. By providing a sealing part, the present application can effectively prevent water from entering the accommodating cavity from the test interface where the connector is not installed during the test, thereby achieving the sealing of the test interface where the connector is not installed, effectively reducing the influence of the test interface where the connector is not installed on the test results, and ensuring the accuracy and reliability of the test results of the connector to be tested. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0024] Figure 1 This is a structural diagram of the connector waterproof testing tool disclosed in this application (I);

[0025] Figure 2 This is a structural diagram of the connector waterproof testing tool disclosed in this application (II);

[0026] Figure 3 This is a schematic structural diagram of the sealing portion disclosed in this application;

[0027] Figure 4 This is a schematic structural diagram of the locking portion disclosed in this application;

[0028] Figure 5 A partial cross-sectional view of the connector waterproof testing tool disclosed in this application;

[0029] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0030] Figure 7 This is a schematic diagram of the structure of the connecting block and the counterweight block disclosed in this application;

[0031] Figure 8 This is a front view of the connector waterproof testing tool disclosed in this application;

[0032] Figure 9This is a side view of the connector waterproof testing tool disclosed in this application.

[0033] The above drawings include the following reference numerals:

[0034] 10. Test shell; 11. Accommodating cavity; 12. Test interface; 13. Mounting slot; 131. Plug slot; 14. Hanging ear; 141. Perforation; 15. Transparent observation window; 16. Drain outlet; 20. Sealing part; 21. Elastic sealing plate; 22. Locking column; 30. Locking part; 31. Elastic component; 311. First elastic member; 312. Card block; 3121 Upper guide slope; 3122 Lower guide slope; 32. Card slot; 40. Connecting block; 41. Dovetail groove; 42. Built-in groove; 421. Second elastic member; 422. Sphere; 50. Counterweight block; 51. Protrusion; 52. Ball slot. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0036] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0037] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to actual proportional relationships. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values should be interpreted as being merely exemplary, not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0038] like Figures 1 to 9As shown, the present application provides a connector waterproof test fixture. The connector waterproof test fixture includes a test housing 10 and a sealing portion 20. A receiving cavity 11 is provided in the test housing 10. The test housing 10 is provided with a plurality of connector test interfaces 12, which are connected to the receiving cavity 11. The sealing portion 20 includes a plurality of sealing portions 20, and the plurality of sealing portions 20 are provided in a one-to-one correspondence with the plurality of test interfaces 12, and each sealing portion 20 is detachably fixed to the test housing 10 by a locking portion 30 to seal the test interface 12.

[0039] In this embodiment, when performing a waterproof test on a connector, the connector to be tested is installed in the test interface 12 that matches the connector to be tested. The remaining test interfaces 12 are then sealed using the sealing portion 20 to prevent water from entering the receiving cavity 11 through the test interfaces 12 where no connectors are installed. Finally, the connector waterproof test fixture is immersed in water for a period of time. The waterproof performance of the connector to be tested can then be determined by observing whether there is water in the receiving cavity 11. If there is water in the receiving cavity 11, the connector has poor waterproof performance. If there is no water in the receiving cavity 11, the connector has excellent waterproof performance.

[0040] In this embodiment, by providing a sealing portion 20, water can be effectively prevented from entering the accommodating cavity 11 from the test interface 12 where the connector is not installed during the test, thereby achieving sealing of the test interface 12 where the connector is not installed, effectively reducing the impact of the test interface 12 where the connector is not installed on the test results, and ensuring the accuracy and reliability of the test results of the connector to be tested. The sealing portion 20 is provided in a one-to-one correspondence with the test interface 12, ensuring that each test interface 12 can be accurately sealed, further preventing water from entering the accommodating cavity 11 from the test interface 12 where the connector is not installed, thereby improving the accuracy of the waterproof test results of the connector. The sealing portion 20 is detachably fixed to the test housing 10, making it easy to install and remove the sealing portion 20 according to actual test requirements, so that the sealing portion 20 has high flexibility, which is conducive to improving test efficiency. In addition, the test housing 10 is provided with a plurality of test interfaces 12 for installing connectors of different types, so that the connector waterproof test tool can test the waterproof performance of connectors of different types. Therefore, the connector waterproof test tool has high versatility, which is conducive to saving R&D costs.

[0041] like Figures 1 to 3As shown, further, the sealing part 20 includes an elastic sealing plate 21 and a locking post 22. The elastic sealing plate 21 is snapped into the test housing 10 and covers the corresponding test interface 12. The elastic sealing plate 21 can seal the test interface 12, forming a reliable waterproof barrier, effectively preventing water from entering the accommodating cavity 11 from the test interface 12. The locking post 22 is fixedly connected to the elastic sealing plate 21. The locking post 22 has a first position in which it is locked with the locking part 30 and a second position in which it is separated from the locking part 30. The locking post 22 enables the sealing part 20 to be quickly locked or unlocked with the locking part 30. When the locking post 22 is in the first position, the locking post 22 is tightly fitted with the locking part 30, ensuring that the sealing part 20 is firmly fixed to the test housing 10. When the locking post 22 is in the second position, the locking post 22 is separated from the locking part 30, facilitating the disassembly and replacement of the sealing part 20, simplifying the operation process of sealing the test interface 12, and helping to improve the testing efficiency of the connector.

[0042] The elastic sealing plate 21 is made of an elastic material. The elastic sealing plate 21 and the test housing 10 have an interference fit, allowing the elastic sealing plate 21 to fit tightly against the test housing 10, ensuring that the test interface 12 is completely covered and sealed, preventing water from entering the accommodating cavity 11 through the test interface 12.

[0043] like Figure 4 As shown, the locking portion 30 further includes an elastic component 31 and a slot 32. The elastic component 31 is provided on the locking column 22, and the slot 32 is provided on the test housing 10. Alternatively, in another embodiment, the elastic component 31 is provided on the test housing 10, and the slot 32 is provided on the locking column 22. The slot 32 cooperates with the elastic component to lock the locking column 22 in the first position and unlock it to the second position. When the elastic component 31 cooperates with the locking column 22 to lock, the elastic component 31 can produce a certain elastic deformation, so that the elastic component 31 fits the locking column 22 more closely, ensuring that the locking column 22 is reliably and stably locked in the first position.

[0044] To ensure that the elastic sealing plate 21 can be reliably locked to the test housing 10, the elastic assembly 31 further includes a first elastic member 311 and a block 312. The first elastic member 311 extends perpendicular to the axis of the locking column 22 and is located on the side of the block 312 facing away from the locking column 22. The block 312 is fixed to the end of the first elastic member 311 near the locking column 22. The block 312 abuts and engages with the slot 32. When the locking column is locked with the elastic assembly 31, the locking column squeezes the first elastic member 311 and the block 312, causing the first elastic member 311 to deform and generate an elastic force that drives the block 312 to press against the locking column. After the block 312 abuts and engages with the slot 32, the first elastic member 311 recovers its deformation and pushes the block 312 to tightly abut and engage with the slot 32, thereby stably locking the locking column to the test housing 10. When the locking column 22 is separated from the locking portion 30, a certain external force is applied to overcome the elastic force of the first elastic member 311 to separate the block 312 from the slot 32, thereby separating the sealing portion 20 from the test housing 10. At the same time, during the process of locking and unlocking the locking column and the elastic assembly 31, the first elastic member 311 can provide a certain buffering effect, reducing the impact between the block 312 and the slot 32, which is beneficial to extending the service life of the connector waterproof test fixture. The first elastic member 311 can be a telescopic spring, elastic rubber, etc., and this embodiment is not limited thereto.

[0045] like Figure 4 As shown, the block 312 is provided with an upper guide bevel 3121 and a lower guide bevel 3122 that are connected to each other. The connection between the upper guide bevel 3121 and the lower guide bevel 3122 is engaged with the card slot 32. The upper guide bevel 3121 and the lower guide bevel 3122 both have a guiding function, and the locking column 22 can slide along the upper guide bevel 3121 and the lower guide bevel 3122 in the axial direction of the locking column 22, ensuring that the locking column 22 can move smoothly along a predetermined trajectory when inserted into the test housing 10. The upper guide bevel 3121 and the lower guide bevel 3122 can improve the sliding smoothness of the locking column 22 and effectively reduce the occurrence of jamming. Specifically, the upper guide bevel 3121 and the lower guide bevel 3122 can be set to a slope, a curved surface, or the like, and this embodiment does not make a sole limitation.

[0046] like Figure 1As shown, further, a plurality of mounting grooves 13 are provided on the test housing 10, and the plurality of mounting grooves 13 are provided in a one-to-one correspondence with the plurality of test interfaces 12, and each test interface 12 is located at the bottom surface of the mounting groove 13. The elastic sealing plate 21 is engaged in the mounting groove 13. A plug-in groove 131 is also provided in the mounting groove 13, and the locking portion 30 is provided on the side wall of the plug-in groove 131. The depth of the plug-in groove 131 extends along the axial direction of the locking column 22. When the locking column 22 is in the first position, the locking column 22 is plugged into the plug-in groove 131 and locked by the locking portion 30. The mounting groove 13 is interference fit with the elastic sealing plate 21, and the elastic sealing plate 21 is engaged in the mounting groove 13, so that the edge of the elastic sealing plate 21 is tightly fitted with the inner wall of the mounting groove 13, so that the test interface 12 achieves good sealing, further preventing water from entering the accommodating cavity 11 from the test interface 12, and ensuring the accuracy of the test results. The insertion slot 131 is used to accommodate the locking column 22 , so that the locking column 22 can slide along the insertion slot 131 and switch between a first position and a second position, thereby locking or unlocking the sealing portion 20 to the test housing 10 .

[0047] like Figures 7 to 9 As shown, the connector waterproof test fixture further includes a connecting block 40 and a counterweight 50. The connecting block 40 is fixed to the test housing 10 and is provided with a dovetail groove 41. The counterweight 50 is provided with a protrusion 51 that matches the dovetail groove 41, and the counterweight 50 is connected to the dovetail groove 41 via the protrusion 51. The counterweight 50 increases the weight of the test housing 10, making the overall density of the connector waterproof test fixture greater than the density of water, ensuring that the connector waterproof test fixture naturally sinks to the bottom of the water, preventing the connector waterproof test fixture from surfacing and affecting the accuracy of the test results.

[0048] Furthermore, the inner wall of the dovetail groove 41 is provided with a built-in groove 42, and the counterweight 50 is provided with a ball groove 52. A second elastic member 421 and a ball 422 are provided in the built-in groove 42. The second elastic member 421 is located on the side of the ball 422 near the bottom of the built-in groove 42, and the ball 422 is located at the notch of the built-in groove 42 to abut and engage with the ball groove 52. Alternatively, the inner wall of the dovetail groove 41 is provided with a ball groove 52, and the counterweight 50 is provided with a built-in groove 42. This arrangement can make the connection between the counterweight 50 and the connecting block 40 more reliable, effectively preventing the counterweight 50 from slipping out of the dovetail groove 41. During the test, the connector waterproof test fixture is always immersed in water to ensure accurate and reliable test results. In this embodiment, the second elastic member 421 is a telescopic spring, but is not limited to this. The material of the counterweight 50 can be stainless steel, which can prevent the counterweight 50 from rusting and corroding.

[0049] Furthermore, a hanging ear 14 is provided on the test housing 10. The hanging ear 14 includes at least one. A perforation 141 is provided on the hanging ear 14. The hanging ear 14 can be provided on the outer surface of the test housing 10. The perforation 141 can be used to thread a rope, so that the connector waterproof test tool can be pulled out of the water by the rope after the test is completed, and it is also convenient for the tester to immerse the waterproof test tool in water. In this embodiment, the test housing 10 is configured as a rectangular parallelepiped, and the waterproof test tool is provided with two hanging ears 14, and the two hanging ears 14 are respectively located on opposite sides of the length direction of the test housing 10.

[0050] Furthermore, the test housing 10 is provided with at least one transparent observation window 15. The tester can directly observe whether water has entered the accommodating cavity 11 through the transparent observation window 15, thereby obtaining the waterproof test result of the connector to be tested without disassembling the elastic sealing plate 21, the connector, etc. The transparent observation window 15 allows for more intuitive, clear, and rapid test results, thereby improving testing efficiency. Specifically, the transparent observation windows 15 can be provided on both sides of the test housing 10. The transparent observation windows 15 can be made of materials such as transparent glass, and this is not a limitation in this embodiment.

[0051] Furthermore, a drain port 16 may be provided at the bottom of the test housing 10. The drain port 16 communicates with the accommodating cavity 11 via a drain pipe. The drain pipe is provided with a drain valve for controlling the opening and closing of the drain port 16. This arrangement allows the water in the test housing 10 to be drained through the drain pipe after water enters the test housing 10, thereby providing a water-free test environment for the next waterproof performance test of the connector.

[0052] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0053] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0054] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A connector waterproof test tool, characterized in that: include: A test housing (10), wherein a receiving cavity (11) is provided in the test housing (10), a plurality of test interfaces (12) for installing connectors are provided on the test housing (10), and the test interfaces (12) are in communication with the receiving cavity (11); A sealing portion (20), the sealing portion (20) comprising a plurality of sealing portions (20), the plurality of sealing portions (20) being arranged in a one-to-one correspondence with the plurality of test interfaces (12), and each of the sealing portions (20) being detachably fixedly connected to the test housing (10) via a locking portion (30) to seal the test interface (12); The sealing portion (20) comprises: an elastic sealing plate (21), the elastic sealing plate (21) being snap-fitted into the test housing (10) and covering the corresponding test interface (12); a locking column (22), wherein the locking column (22) is fixedly connected to the elastic sealing plate (21), and the locking column (22) has a first position in which it is locked with the locking portion (30) and a second position in which it is separated from the locking portion (30); The locking portion (30) comprises an elastic component (31) and a card slot (32); one of the elastic component (31) and the card slot (32) is arranged on the locking column (22), and the other is arranged on the test housing (10).

2. The connector waterproof testing tool according to claim 1, characterized in that: The elastic component (31) includes a first elastic member (311) and a clamping block (312). The extension direction of the first elastic member (311) is perpendicular to the axial direction of the locking column (22), and the first elastic member (311) is located on a side of the clamping block (312) away from the locking column (22). The clamping block (312) is fixed to an end of the first elastic member (311) close to the locking column (22), and the clamping block (312) abuts and engages with the clamping slot (32).

3. The connector waterproof testing tool according to claim 2, characterized in that: The clamping block (312) is provided with an upper guiding inclined surface (3121) and a lower guiding inclined surface (3122) which are connected to each other.

4. The connector waterproof testing tool according to claim 1, characterized in that: The test housing (10) is provided with a plurality of mounting grooves (13), and the plurality of mounting grooves (13) are provided in a one-to-one correspondence with the plurality of test interfaces (12), and each of the test interfaces (12) is located at the bottom surface of the mounting groove (13), the elastic sealing plate (21) is engaged in the mounting groove (13), and the mounting groove (13) is further provided with a plug-in groove (131), the locking portion (30) is provided on the side wall of the plug-in groove (131), and the depth of the plug-in groove (131) extends along the axial direction of the locking column (22), and when the locking column (22) is located at the first position, the locking column (22) is plugged into the plug-in groove (131) and locked by the locking portion (30).

5. The connector waterproof testing tool according to any one of claims 1 to 4, characterized in that: Also includes: A connecting block (40), the connecting block (40) being fixed to the test housing (10), and the connecting block (40) being provided with a dovetail groove (41); A counterweight block (50) is provided with a protrusion (51) adapted to the dovetail groove (41), and the counterweight block (50) is connected to the dovetail groove (41) via the protrusion (51).

6. The connector waterproof testing tool according to claim 5, characterized in that: A built-in groove (42) is provided on one of the inner wall of the dovetail groove (41) and the counterweight (50), and a ball groove (52) is provided on the other of the two. A second elastic member (421) and a ball (422) are provided in the built-in groove (42). The second elastic member (421) is located on a side of the ball (422) close to the bottom surface of the built-in groove (42). The ball (422) is located at the notch of the built-in groove (42) to abut and engage with the ball groove (52).

7. The connector waterproof testing tool according to any one of claims 1 to 4, characterized in that: The test housing (10) is further provided with a hanging ear (14), the hanging ear (14) includes at least one, and a through hole (141) is provided on the hanging ear (14).

8. The connector waterproof testing tool according to any one of claims 1 to 4, characterized in that: The test housing (10) is also provided with at least one transparent observation window (15).