Connector airtightness tester
By combining the limiting component and the displacement component, the problem of existing airtightness testers being incompatible with different types of connectors is solved, enabling flexible adaptability testing of different types of connectors and quick replacement of sealing rings, thus improving the versatility and flexibility of the tester.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNSHAN YOUNDE PRECISION MOULD CO LTD
- Filing Date
- 2025-08-12
- Publication Date
- 2026-06-09
AI Technical Summary
Existing airtightness testers are not compatible with different types of connectors, making them unsuitable for products of various specifications.
A connector airtightness tester was designed, which adopts a combination of a limiting component and a displacement component. The limiting component is driven to move by an electric push rod, changing the opening size of the limiting component surface to adapt to different models of connectors. The sealing ring and testing component can be quickly replaced through the connection of the plug rod and the connector seat.
It enables flexible and adaptable testing of different types of connectors, improves the versatility and flexibility of the tester, and facilitates the replacement of testing components to adapt to different types of connectors.
Smart Images

Figure CN224341175U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of airtightness testing instruments, and more specifically, it relates to an airtightness testing instrument for connectors. Background Technology
[0002] In fields such as electronic equipment manufacturing, automotive industry, and medical devices, the airtightness of connectors directly affects the reliability and safety of products. Traditional airtightness testers mostly use fixed-size mounting bases to position the connectors under test.
[0003] Existing equipment typically uses mounting bases designed based on the dimensions of specific connectors, achieving precise positioning through methods such as fixing grooves and locating block assemblies (e.g., a six-point positioning structure). However, the dimensions of different connector models vary significantly, making the tester incompatible with multiple product specifications. Utility Model Content
[0004] To address the issue that different models of connectors have significantly different dimensions, and that positioning via fixed grooves and positioning blocks cannot be compatible with products of various specifications, this utility model proposes a connector airtightness tester to overcome the aforementioned technical problems in existing related technologies.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model is a connector airtightness tester, including a base, an electric push rod and a limiting component are fixedly installed on the top of the base, an installation component is fixedly connected to the movable end of the electric push rod, a detection component is provided on the outer surface of the installation component, and a displacement component is provided inside the base. The installation component is used to connect and fix the detection component, the limiting component is used to fix the connector to be tested, and the displacement component is used to drive the limiting component to move.
[0007] Furthermore, the mounting assembly includes a mounting plate, which is fixedly connected to the movable end of the electric push rod. A first sliding groove is provided inside the mounting plate, and a plug rod, a first limiting plate, and a push block are slidably connected inside the first sliding groove. The plug rod, the first limiting plate, and the push block are fixedly connected. A spring is fixedly connected to the outer surface of the first limiting plate, and one end of the spring is fixedly connected inside the first sliding groove.
[0008] Furthermore, the detection component includes a connecting seat, which is inserted into the mounting plate and the first limiting plate. A square base is fixedly connected to the outer surface of the connecting seat. A sealing ring and an air inlet pipe are fixedly connected to the outer surface of the square base. An air supply hole is fixedly connected inside the square base. The air inlet pipe communicates with the air supply hole. A flexible hose is fixedly installed at the end of the air inlet pipe. A detection instrument is fixedly installed at the end of the flexible hose.
[0009] Furthermore, the limiting component includes a fixed limiting seat, a connecting plate is fixedly connected to the outer surface of the fixed limiting seat, a first bolt is threadedly connected to the outer surface of the connecting plate, the connecting plate is fixedly installed on the top of the base by the first bolt, a second sliding groove is provided inside the fixed limiting seat, a clamping plate and a second limiting plate are slidably connected inside the second sliding groove, the clamping plate and the second limiting plate are fixedly connected, and a vertical rod is fixedly connected to the bottom of the clamping plate.
[0010] Furthermore, the displacement assembly includes a screw, which is rotatably connected to the base. A sliding seat is threadedly connected to the outer surface of the screw. A third sliding groove is formed on the outer surface of the base. The screw is rotatably connected inside the third sliding groove, and the sliding seat is slidably connected inside the third sliding groove. The vertical rod is inserted into the sliding seat.
[0011] Furthermore, a vertical plate is fixedly installed on the top of the base, and a second bolt is threaded onto the outer surface of the vertical plate. The vertical plate is fixedly installed on the top of the base by the second bolt, and the fixed end of the electric push rod is fixedly connected to the vertical plate.
[0012] Furthermore, one end of the screw extends to the outside of the base, and a handwheel is fixedly connected to the outer surface of the screw, the handwheel being located on the outside of the base.
[0013] This utility model has the following beneficial effects:
[0014] 1. This utility model connects a limiting component and a displacement component. The limiting component is located above the displacement component. When the displacement component moves inside the base, it drives the limiting component to extend or retract, thereby changing the size of the opening on the surface of the limiting component. When the size of the opening on the surface of the limiting component changes, different types of connectors can be placed. The size and type of connector to be tested can be adjusted, making it more flexible to use.
[0015] 2. This utility model uses the connection between the plug rod and the connecting seat to push the push block to move the plug rod, causing the plug rod to retract into the mounting plate, thereby releasing the limiting fixation between the connecting seat and the mounting plate. At this time, the connecting seat can be removed from the mounting plate, making it easy to replace different connecting seats and sealing rings to adapt to different models of plug parts.
[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the utility model embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the external contour structure of the present invention. Figure 1 ;
[0019] Figure 2 This is a schematic diagram of the external contour structure of the present invention. Figure 2 ;
[0020] Figure 3 This is a schematic diagram of the installation component structure of this utility model;
[0021] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle;
[0022] Figure 5 This is a schematic diagram of the displacement component structure of this utility model;
[0023] Figure 6 For the present utility model Figure 5 Enlarged schematic diagram of the structure at point B.
[0024] The attached diagram lists the components represented by each number as follows:
[0025] 1. Base; 2. Electric push rod; 3. Mounting assembly; 301. Mounting plate; 302. First slide groove; 303. Insert rod; 304. Limiting plate; 305. Push block; 306. Spring; 4. Detection assembly; 401. Connecting seat; 402. Square seat; 403. Sealing ring; 404. Air inlet pipe; 405. Air outlet; 406. Hose; 407. Detector; 5. Limiting assembly; 501. Fixed limiting seat; 502. Connecting plate; 503. First bolt; 504. Second slide groove; 505. Clamping plate; 506. Second limiting plate; 507. Vertical rod; 6. Displacement assembly; 601. Screw; 602. Sliding seat; 603. Third slide groove; 7. Vertical plate; 8. Second bolt; 9. Handwheel. Detailed Implementation
[0026] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.
[0027] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.
[0028] Please see Figures 1-6 As shown, this utility model is a connector airtightness tester, including a base 1. An electric push rod 2 and a limiting component 5 are fixedly installed on the top of the base 1. An installation component 3 is fixedly connected to the movable end of the electric push rod 2. A detection component 4 is provided on the outer surface of the installation component 3. A displacement component 6 is provided inside the base 1. The installation component 3 is used to connect and fix the detection component 4. The limiting component 5 is used to fix the connector to be tested. The displacement component 6 is used to drive the limiting component 5 to move.
[0029] The displacement component 6 moves within the base 1, causing the limiting component 5 to move, thus increasing the opening size of the limiting component 5 to be slightly larger than the connector to be tested. At this point, the connector to be tested can be placed inside the limiting component 5. Then, the electric push rod 2 on the base 1 is activated. The movable end of the electric push rod 2 pushes the mounting component 3 and the detection component 4 to move, causing the detection component 4 to seal the connector and fill it with gas at a set pressure. The pressure change is monitored in real time by a high-precision pressure sensor. If the pressure drops beyond the threshold, a leak is determined. When testing different connectors, the size of the limiting component 5 can be changed by moving the displacement component 6, so that different models of connectors can be placed on the limiting component 5. Then, the mounting component 3 is pushed to separate it from the detection component 4, and the detection component 4 can be replaced to adapt to different models of connectors.
[0030] This utility model connects the limiting component 5 and the displacement component 6. The limiting component 5 is located above the displacement component 6. When the displacement component 6 moves within the base 1, the displacement component 6 drives the limiting component 5 to extend or retract, thereby changing the size of the opening on the surface of the limiting component 5. When the size of the opening on the surface of the limiting component 5 changes, different types of connectors can be placed. The size and type of connector to be tested can be adjusted, making it more flexible to use.
[0031] In one embodiment, the mounting assembly 3 includes a mounting plate 301, which is fixedly connected to the movable end of the electric push rod 2. A first sliding groove 302 is provided inside the mounting plate 301. A plug rod 303, a first limiting plate 304, and a push block 305 are slidably connected inside the first sliding groove 302. The plug rod 303, the first limiting plate 304, and the push block 305 are fixedly connected. A spring 306 is fixedly connected to the outer surface of the first limiting plate 304, and one end of the spring 306 is fixedly connected inside the first sliding groove 302.
[0032] Pushing the push block 305 causes the insertion rod 303 to move, which in turn causes the first limiting plate 304 to slide within the first sliding groove 302, compressing the spring 306. At this point, the insertion rod 303 retracts into the mounting plate 301. After releasing the push block 305, the spring 306 pushes the first limiting plate 304 to reset the insertion rod 303.
[0033] In one embodiment, the detection component 4 includes a connecting seat 401, which is inserted into the mounting plate 301 and the first limiting plate 304. A square seat 402 is fixedly connected to the outer surface of the connecting seat 401. A sealing ring 403 and an air inlet pipe 404 are fixedly connected to the outer surface of the square seat 402. An air outlet 405 is fixedly connected inside the square seat 402. The air inlet pipe 404 communicates with the air outlet 405. A flexible hose 406 is fixedly installed at the end of the air inlet pipe 404. A detector 407 is fixedly installed at the end of the flexible hose 406.
[0034] First, push the push block 305 to retract the insertion rod 303 into the mounting plate 301. Then, insert the connecting seat 401 into the mounting plate 301. Release the push block 305 to reset the insertion rod 303. At this time, the insertion rod 303 is inserted into the connecting seat 401 to limit and fix the square seat 402. Then, connect the air intake pipe 404 and the hose 406 on the square seat 402. When it is necessary to replace different square seats 402 and sealing rings 403, push the push block 305 to separate the insertion rod 303 from the connecting seat 401, so as to release the limiting and fixing of the connecting seat 401 and remove it for replacement.
[0035] In one embodiment, the limiting component 5 includes a fixed limiting seat 501, a connecting plate 502 fixedly connected to the outer surface of the fixed limiting seat 501, a first bolt 503 threadedly connected to the outer surface of the connecting plate 502, the connecting plate 502 being fixedly installed on the top of the base 1 by the first bolt 503, a second sliding groove 504 being provided inside the fixed limiting seat 501, a clamping plate 505 and a second limiting plate 506 being slidably connected inside the second sliding groove 504, the clamping plate 505 and the second limiting plate 506 being fixedly connected, and a vertical rod 507 being fixedly connected to the bottom of the clamping plate 505.
[0036] The clamping plate 505 is moved, causing the clamping plate 505 to drive the second limiting plate 506 to slide along the second slide groove 504, changing the gap between the clamping plate 505 and the fixed limiting seat 501. Different types of plug-in parts can be placed between the fixed limiting seat 501 and the clamping plate 505. After placement, the electric push rod 2 is activated to push the square seat 402 to move, so that the sealing ring 403 on the square seat 402 seals the plug-in part. Then, the detector 407 is activated to deliver gas to the inside of the plug-in part through the hose 406, the air inlet pipe 404 and the air outlet 405. The pressure change is monitored in real time by a high-precision pressure sensor. If the pressure drop exceeds the threshold, a leak is determined.
[0037] In one embodiment, the displacement component 6 includes a screw 601, which is rotatably connected to the base 1. A sliding seat 602 is threadedly connected to the outer surface of the screw 601. A third sliding groove 603 is formed on the outer surface of the base 1. The screw 601 is rotatably connected inside the third sliding groove 603. The sliding seat 602 is slidably connected inside the third sliding groove 603. The vertical rod 507 is inserted into the sliding seat 602.
[0038] Rotate the screw 601. The screw 601 rotates within the third slide groove 603. The rotational tendency of the sliding seat 602 on the screw 601 is blocked by the third slide groove 603. At this time, the screw 601 can drive the sliding seat 602 to drive the vertical rod 507 to slide along the third slide groove 603. The vertical rod 507 can drive the clamping plate 505 to move, thereby changing the position of the clamping plate 505.
[0039] In one embodiment, for the base 1, a vertical plate 7 is fixedly installed on the top of the base 1, and a second bolt 8 is threadedly connected to the outer surface of the vertical plate 7. The vertical plate 7 is fixedly installed on the top of the base 1 by the second bolt 8, and the fixed end of the electric push rod 2 is fixedly connected to the vertical plate 7.
[0040] After placing the vertical plate 7 on top of the base 1, insert two sets of second bolts 8 into the outer surface of the vertical plate 7, rotate the second bolts 8 so that they pass through the vertical plate 7 and are threadedly connected to the base 1, thereby fixing the vertical plate 7 to the top of the base 1.
[0041] In one embodiment, for the screw 601 described above, one end of the screw 601 extends to the outside of the base 1, and a handwheel 9 is fixedly connected to the outer surface of the screw 601, the handwheel 9 being located on the outside of the base 1.
[0042] Rotate handwheel 9, which drives screw 601 to rotate. The handwheel 9 is designed to be easy for staff to hold.
[0043] Through the above technical solution, 1. By connecting the limiting component 5 and the displacement component 6, the limiting component 5 is located above the displacement component 6. When the displacement component 6 moves within the base 1, the displacement component 6 drives the limiting component 5 to extend and retract, thereby changing the size of the opening on the surface of the limiting component 5. When the size of the opening on the surface of the limiting component 5 changes, different types of connectors can be placed. It can be adjusted according to the size and type of the connector to be tested, making it more flexible in use.
[0044] 2. By connecting the insertion rod 303 and the connecting seat 401, the push block 305 is pushed to move the insertion rod 303, causing the insertion rod 303 to retract into the mounting plate 301, thereby releasing the limiting fixation between the connecting seat 401 and the mounting plate 301. At this time, the connecting seat 401 can be removed from the mounting plate 301 to facilitate the replacement of different connecting seats 401 and sealing rings 403 to adapt to different models of connectors.
[0045] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0046] The preferred embodiments of the utility model disclosed above are merely illustrative of the utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the utility model, thereby enabling those skilled in the art to better understand and utilize it. The utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A connector airtightness tester, comprising a base (1), characterized in that, An electric push rod (2) and a limiting component (5) are fixedly installed on the top of the base (1). An installation component (3) is fixedly connected to the movable end of the electric push rod (2). A detection component (4) is provided on the outer surface of the installation component (3). A displacement component (6) is provided inside the base (1). The installation component (3) is used to connect and fix the detection component (4). The limiting component (5) is used to fix the plug to be tested. The displacement component (6) is used to drive the limiting component (5) to move.
2. The connector airtightness tester according to claim 1, characterized in that, The mounting assembly (3) includes a mounting plate (301), which is fixedly connected to the movable end of the electric push rod (2). The mounting plate (301) has a first sliding groove (302) inside. The first sliding groove (302) is slidably connected to a rod (303), a first limiting plate (304), and a push block (305). The rod (303), the first limiting plate (304), and the push block (305) are fixedly connected. A spring (306) is fixedly connected to the outer surface of the first limiting plate (304), and one end of the spring (306) is fixedly connected to the inside of the first sliding groove (302).
3. The connector airtightness tester according to claim 2, characterized in that, The detection component (4) includes a connecting seat (401), which is inserted into the mounting plate (301) and the first limiting plate (304). A square seat (402) is fixedly connected to the outer surface of the connecting seat (401). A sealing ring (403) and an air inlet pipe (404) are fixedly connected to the outer surface of the square seat (402). An air outlet (405) is fixedly connected inside the square seat (402). The air inlet pipe (404) and the air outlet (405) are interconnected. A flexible hose (406) is fixedly installed at the end of the air inlet pipe (404). A detector (407) is fixedly installed at the end of the flexible hose (406).
4. The connector airtightness tester according to claim 3, characterized in that, The limiting component (5) includes a fixed limiting seat (501), a connecting plate (502) is fixedly connected to the outer surface of the fixed limiting seat (501), a first bolt (503) is threadedly connected to the outer surface of the connecting plate (502), the connecting plate (502) is fixedly installed on the top of the base (1) by the first bolt (503), a second sliding groove (504) is opened inside the fixed limiting seat (501), a clamping plate (505) and a second limiting plate (506) are slidably connected inside the second sliding groove (504), the clamping plate (505) and the second limiting plate (506) are fixedly connected, and a vertical rod (507) is fixedly connected to the bottom of the clamping plate (505).
5. A connector airtightness tester according to claim 4, characterized in that, The displacement component (6) includes a screw (601), which is rotatably connected to the base (1). A sliding seat (602) is threadedly connected to the outer surface of the screw (601). A third sliding groove (603) is provided on the outer surface of the base (1). The screw (601) is rotatably connected to the inside of the third sliding groove (603). The sliding seat (602) is slidably connected to the inside of the third sliding groove (603). The vertical rod (507) is inserted into the sliding seat (602).
6. A connector airtightness tester according to claim 5, characterized in that, A vertical plate (7) is fixedly installed on the top of the base (1). A second bolt (8) is threaded onto the outer surface of the vertical plate (7). The vertical plate (7) is fixedly installed on the top of the base (1) by the second bolt (8). The fixed end of the electric push rod (2) is fixedly connected to the vertical plate (7).
7. A connector airtightness tester according to claim 6, characterized in that, One end of the screw (601) extends to the outside of the base (1), and a handwheel (9) is fixedly connected to the outer surface of the screw (601), the handwheel (9) being located on the outside of the base (1).