Airtightness measuring equipment for waterproof switch

Abstract

The utility model discloses waterproof switch air tightness testing equipment, which belongs to the technical field of air tightness testing equipment and comprises a rack, a jig seat frame, a vent valve, an air passage, an accommodating cavity, an annular air leakage groove, a press-fit connecting block, a sealing ring, a press-fit driving mechanism and an air tightness detector. A jig seat frame is arranged in the machine frame, a vent valve is arranged on the side face of the seat frame, the air channel is connected with the vent valve and a containing cavity, and the containing cavity is formed in the jig seat frame. The annular air leakage groove surrounds the top of the containing cavity and is formed in the jig seat frame. The annular air leakage groove is connected with the containing cavity. The press-fit connecting block is movably arranged on the jig seat frame, and the sealing ring is arranged between the jig seat frame and the press-fit connecting block; the press-fit driving mechanism is arranged on the rack and is in driving connection with the press-fit connecting block; and the air tightness detector is arranged on the adjacent side of the rack and is in control connection with the vent valve. The air tightness detection device solves the technical problem of how to improve the detection efficiency of the air tightness detection device.

Description

Technical Field

[0001] The utility model relates to the technical field of airtight testing equipment, in particular to an airtight testing equipment for waterproof switches. Background Art

[0002] A waterproof switch is a switch that can still work normally in a humid environment. It prevents moisture from penetrating through special designs to ensure that the electrical connections of the switch are not affected.

[0003] In terms of design, the outer shell of the waterproof switch is usually made of waterproof materials, and the joints are sealed with glue or sealant to prevent moisture penetration. In addition, a sealing ring is set around the electrical contacts of the waterproof switch to prevent moisture from entering, and some are also provided with protective covers to further enhance the waterproof performance. Moreover, a spring can be used as the support component of the electrical contacts to ensure good contact between the contacts and the circuit board and prevent moisture from entering the contact gaps.

[0004] An airtightness detector is a device used to detect the sealing performance of products. It fills a certain amount of gas into the interior of the test piece and monitors the change of gas pressure over time to accurately judge whether there is leakage in the product. After the waterproof switch is assembled on the production line, its airtightness needs to be detected to ensure that the waterproof performance of the products off the production line can meet the requirements.

[0005] Based on this, Chinese Patent CN112924097B discloses an airtightness detection device, which includes: a base provided with a first chute that penetrates the base along a first direction; a positioning mechanism slidably connected to the base for positioning an electronic cigarette component in the first chute; an air supply mechanism disposed at one end of the first chute and fixedly connected to the base. The air supply mechanism is provided with a through hole, and the head bracket of the electronic cigarette component is embedded in the through hole for introducing detection gas into the electronic cigarette component. In this way, the detection efficiency, accuracy and safety of the airtightness detection of the electronic cigarette component can be improved.

[0006] However, the above-disclosed airtightness detection device still has the technical problem of relatively high detection errors. Specifically, when the above-disclosed airtightness detection device is working, it sets a first chute on the base and slidably connects the positioning mechanism positioning the electronic cigarette component to the base, so that the electronic cigarette component can be slid through the first chute to the air supply mechanism, so that the head bracket of the electronic cigarette component is connected to the air supply mechanism to introduce detection gas into the electronic cigarette component through the through hole. However, in actual applications, this testing method is prone to air leakage in the gaps between fixtures, thus misjudging the airtightness of the product itself. Summary of the Utility Model

[0007] Based on this, it is necessary to provide a waterproof switch airtightness detection device for the technical problem of how to improve the detection efficiency of the airtightness detection device.

[0008] A waterproof switch airtightness detection device, which includes: a frame, a fixture seat frame, a ventilation valve, an air duct, a receiving cavity, an annular air leakage groove, a pressing connection block, a sealing ring, a pressing drive mechanism, and an airtightness detector; the fixture seat frame is arranged in the frame, the ventilation valve is arranged on the side of the seat frame, the air duct is respectively connected to the ventilation valve and the receiving cavity, and the receiving cavity is arranged in the fixture seat frame; the annular air leakage groove is arranged on the fixture seat frame around the top of the receiving cavity, and the annular air leakage groove is connected to the receiving cavity; the pressing connection block is movably arranged on the fixture seat frame, and the sealing ring is arranged between the fixture seat frame and the pressing connection block; the pressing drive mechanism is arranged on the frame, and the pressing drive mechanism is drivingly connected to the pressing connection block; the airtightness detector is arranged adjacent to the frame, and the airtightness detector is controllably connected to the ventilation valve.

[0009] Furthermore, the pressing drive mechanism has a pressing drive cylinder, a pressing telescopic rod, a drive connection block, a hanging frame structure, and a sliding connection sleeve.

[0010] Even further, the pressing drive cylinder is arranged on the frame, and the pressing drive cylinder is drivingly connected to the pressing telescopic rod.

[0011] Even further, the drive connection block is movably arranged in the frame, and the drive connection block is respectively connected to the pressing connection block and the pressing telescopic rod.

[0012] Even further, the hanging frame structure is connected to the drive connection block, the hanging frame structure movably passes through the sliding connection sleeve, and the sliding connection sleeve is connected to the frame.

[0013] Even further, the fixture seat frame is provided with a plurality of guiding connection columns, and the plurality of guiding connection columns are arranged around the periphery of the sealing ring.

[0014] Even further, the pressing connection block has a plurality of guiding connection holes, the plurality of guiding connection holes are uniformly distributed in the pressing connection block to match the guiding connection columns, and each guiding connection column is correspondingly movably connected to one guiding connection hole.

[0015] Even further, a safety protection structure, the safety protection structure has a grating support, a safety grating, and a warning light.

[0016] Even further, the grating support is arranged on the open side of the frame, and the safety grating is connected to the grating support.

[0017] Furthermore, the warning light is arranged on the upper part of the frame, and the safety grating is electrically connected to the warning light and the pressing drive cylinder respectively.

[0018] In summary, the waterproof switch airtightness testing device of the present invention is respectively provided with a frame, a fixture seat frame, an air vent valve, an air passage, a receiving cavity, an annular air leakage groove, a pressing connection block, a sealing ring, a pressing drive mechanism and an airtightness detector; the fixture seat frame is arranged in the frame, the air vent valve is arranged on the side of the seat frame, the air passage is respectively connected to the air vent valve and the receiving cavity, and the receiving cavity is arranged in the fixture seat frame; the annular air leakage groove is arranged on the fixture seat frame around the top of the receiving cavity, and the annular air leakage groove is connected to the receiving cavity; the pressing connection block is movably arranged on the fixture seat frame, and the sealing ring is arranged between the fixture seat frame and the pressing connection block; the pressing drive mechanism is arranged on the frame, and the pressing drive mechanism is drivingly connected to the pressing connection block; the airtightness detector is arranged adjacent to the frame, and the airtightness detector is control-connected to the air vent valve. It can be seen that the waterproof switch airtightness testing device of the present invention provides a testing device that can accurately test the airtightness of the product to be tested, which can reduce the situation of misjudgment of the detection device caused by air leakage due to the gap between the docking fixtures; thus, the airtightness detection efficiency of products such as waterproof switches can be improved. Therefore, the waterproof switch airtightness testing device of the present invention solves the technical problem of how to improve the detection efficiency of the airtightness detection device. Description of the Drawings

[0019] Figure 1 It is a structural schematic diagram of the waterproof switch airtightness testing device of the present invention;

[0020] Figure 2 It is a cross-sectional structural schematic diagram of the waterproof switch airtightness testing device of the present invention in another direction;

[0021] Figure 3 It is an exploded structural schematic diagram of the waterproof switch airtightness testing device of the present invention in another direction;

[0022] Figure 4 It is an exploded structural schematic diagram of a part of the waterproof switch airtightness testing device of the present invention. Detailed Embodiments

[0023] To make the above objects, features, and advantages of the present utility model more apparent and understandable, the following describes the specific embodiments of the present utility model in detail with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a thorough understanding of the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0024] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present utility model.

[0025] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0026] In the present utility model, unless otherwise clearly defined and limited, terms such as "mounted", "connected", "connected to", "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature has a lower horizontal height than the second feature.

[0028] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0029] Please refer to Figures 1 to 4 , the airtightness detection device for the waterproof switch of the present utility model includes: a frame 1, a fixture seat frame 2, an air vent valve 3, an air passage 4, a receiving cavity 5, an annular air leakage groove 6, a pressing connection block 7, a sealing ring 8, a pressing drive mechanism 9 and an airtightness detector 10; the fixture seat frame 2 is arranged in the frame 1, the air vent valve 3 is arranged on the side of the seat frame 2, the air passage 4 is respectively connected to the air vent valve 3 and the receiving cavity 5, and the receiving cavity 5 is arranged in the fixture seat frame 2; the annular air leakage groove 6 is arranged on the fixture seat frame 2 around the top of the receiving cavity 5, and the annular air leakage groove 6 is connected to the receiving cavity 5; the pressing connection block 7 is movably arranged on the fixture seat frame 2, and the sealing ring 8 is arranged between the fixture seat frame 2 and the pressing connection block 7; the pressing drive mechanism 9 is arranged on the frame 1, and the pressing drive mechanism 9 is drivingly connected to the pressing connection block 7; the airtightness detector 10 is arranged adjacent to the frame 1, and the airtightness detector 10 is controllably connected to the air vent valve 3.

[0030] Specifically, when the airtightness testing device for the waterproof switch of the present utility model is in the working process, the user can place products such as the waterproof switch to be tested in the accommodating cavity 5, and make the externally communicating parts of such products, such as the connector and plug-in port of the waterproof switch, communicate with the annular air leakage groove 6. After that, the user can start the pressing drive mechanism 9, and make the pressing drive mechanism 9 drive the pressing connection block 7 to move downward until it abuts against the upper part of the jig base frame 2. At this time, the sealing ring 8 is connected between the jig base frame 2 and the pressing connection block 7. In particular, the sealing ring 8 is arranged around the outside of the annular air leakage groove 6. At this time, the airtightness detector 10 can release gas with a preset pressure to the air vent valve 3, so that the gas enters the accommodating cavity 5 through the air passage 4. If at this time, the airtightness of the products such as the waterproof switch to be tested does not meet the requirements, the gas in the accommodating cavity 5 will seep into its own cavity from the air leakage point of the product to be tested, and then enter the annular air leakage groove 6 from its own cavity through its open end, such as the port of the connector. At this time, the airtightness detector 10 can detect the change in the pressure of the gas in the accommodating cavity 5 and make an accurate judgment on the airtightness of the product. It can be seen that the airtightness testing device for the waterproof switch of the present utility model provides a testing device that can accurately test the airtightness of the product to be tested, which can reduce the situation of misjudgment of the testing device caused by air leakage due to the gaps between the docking jigs; thus, the airtightness testing efficiency of products such as waterproof switches can be improved.

[0031] Furthermore, the pressing drive mechanism 9 includes a pressing drive cylinder 901, a pressing telescopic rod 902, a drive connection block 903, a hanger structure 904 and a sliding connection sleeve 905; the pressing drive cylinder 901 is arranged on the frame 1, and the pressing drive cylinder 901 is drivingly connected to the pressing telescopic rod 902; the drive connection block 903 is movably arranged in the frame 1, and the drive connection block 903 is respectively connected to the pressing connection block 7 and the pressing telescopic rod 902; the hanger structure 904 is connected to the drive connection block 903, and the hanger structure 904 movably penetrates through the sliding connection sleeve 905, and the sliding connection sleeve 905 is connected to the frame 1.

[0032] Specifically, after the pressing drive cylinder 901 is activated, it can drive the pressing telescopic rod 902 to reciprocally extend or retract; further, the driving connection block 903 is driven by the pressing telescopic rod 902 to move downward or upward; and the pressing connection block 7 is arranged under the driving connection block 903. Thus, the pressing connection block 7 can be driven to descend and fit and connect to the fixture base frame 2, or ascend above the fixture base frame 2, thereby exposing the accommodation cavity 5. More specifically, both sides of the driving connection block 903 are connected to the hanging frame structure 904, and the hanging frame structure 904 is connected to the machine frame 1 through the sliding connection sleeve 905; thus, the stability of the pressing connection block 7 during movement can be improved, so that it can be accurately aligned and connected to the fixture base frame 2.

[0033] Furthermore, the pressing drive mechanism 9 is also provided with a control button 906, the control button 906 is arranged adjacent to the machine frame 1, and the control button 906 is controllably connected to the pressing drive cylinder 901. Specifically, an operator can control the start or stop state of the pressing drive cylinder 901 by pressing the control button 906.

[0034] Furthermore, the fixture base frame 2 is provided with a plurality of guiding connection columns 201, and the plurality of guiding connection columns 201 are arranged around the periphery of the sealing ring 8; the pressing connection block 7 has a plurality of guiding connection holes 701, and the plurality of guiding connection holes 701 are uniformly distributed in the pressing connection block 7 to match the guiding connection columns 201, and each guiding connection column 201 is movably connected to a corresponding guiding connection hole 701.

[0035] Specifically, in order to increase the connection accuracy between the fixture base frame 2 and the pressing connection block 7, thereby further enhancing the accuracy of this kind of measuring equipment, the pairing connection between the guiding connection columns 201 and the guiding connection holes 701 can be adopted, so as to ensure that the pressing connection block 7 can completely fall into the preset position on the fixture base frame 2 when descending.

[0036] Furthermore, the waterproof switch airtightness measuring equipment of the present utility model is also provided with a safety protection structure 11, and the safety protection structure 11 includes a grating support 1101, a safety grating 1102 and a warning lamp 1103; the grating support 1101 is arranged on the opening side of the machine frame 1, and the safety grating 1102 is connected to the grating support 1101; the warning lamp 1103 is arranged on the upper part of the machine frame 1, and the safety grating 1102 is electrically connected to the warning lamp 1103 and the pressing drive cylinder 901 respectively.

[0037] Specifically, on the open side of the frame 1, the user can pick up and place the product to be tested. To prevent safety problems caused by misoperations during the operation of picking up and placing the product by the operator, a safety light curtain 1102 is provided at the front end of the frame 1. If during the process of the pressing drive cylinder 901 driving the pressing connection block 7 to descend, the operator makes a wrong operation of picking up and placing the product at the same time, the safety light curtain 1102 can issue an instruction to control the pressing drive cylinder 901 to make an emergency stop. At the same time, it controls the warning light 1103 to emit light for alarm.

[0038] In summary, the airtightness testing device for waterproof switches of the present utility model is respectively provided with a frame 1, a jig base frame 2, a ventilation valve 3, an air passage 4, a receiving cavity 5, an annular air leakage groove 6, a pressing connection block 7, a sealing ring 8, a pressing drive mechanism 9 and an airtightness detector 10; the jig base frame 2 is arranged in the frame 1, the ventilation valve 3 is arranged on the side of the base frame 2, the air passage 4 is respectively connected to the ventilation valve 3 and the receiving cavity 5, and the receiving cavity 5 is arranged in the jig base frame 2; the annular air leakage groove 6 is arranged on the jig base frame 2 around the top of the receiving cavity 5, and the annular air leakage groove 6 is connected to the receiving cavity 5; the pressing connection block 7 is movably arranged on the jig base frame 2, and the sealing ring 8 is arranged between the jig base frame 2 and the pressing connection block 7; the pressing drive mechanism 9 is arranged on the frame 1, and the pressing drive mechanism 9 is drivingly connected to the pressing connection block 7; the airtightness detector 10 is arranged adjacent to the frame 1, and the airtightness detector 10 is control-connected to the ventilation valve 3. It can be seen that the airtightness testing device for waterproof switches of the present utility model provides a testing device that can accurately test the airtightness of the product to be tested, which can reduce the situation of misjudgment of the detection device caused by air leakage due to the gap between the docking jigs; thus, the airtightness detection efficiency of products such as waterproof switches can be improved. Therefore, the airtightness testing device for waterproof switches of the present utility model solves the technical problem of how to improve the detection efficiency of the airtightness detection device.

[0039] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0040] The above-described embodiments only represent several implementation manners of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A waterproof switch airtightness measuring device, characterized in that It includes: a frame (1), a fixture seat frame (2), a ventilation valve (3), an air duct (4), a receiving cavity (5), an annular air leakage groove (6), a pressing connection block (7), a sealing ring (8), a pressing drive mechanism (9), and an airtightness detector (10); the fixture seat frame (2) is arranged in the frame (1), the ventilation valve (3) is arranged on the side of the seat frame (2), the air duct (4) is respectively connected to the ventilation valve (3) and the receiving cavity (5), and the receiving cavity (5) is arranged in the fixture seat frame (2); the annular air leakage groove (6) is arranged on the fixture seat frame (2) around the top of the receiving cavity (5), and the annular air leakage groove (6) is connected to the receiving cavity (5); the pressing connection block (7) is movably arranged on the fixture seat frame (2), and the sealing ring (8) is arranged between the fixture seat frame (2) and the pressing connection block (7); the pressing drive mechanism (9) is arranged on the frame (1), and the pressing drive mechanism (9) is drivingly connected to the pressing connection block (7); the airtightness detector (10) is arranged adjacent to the frame (1), and the airtightness detector (10) is controllably connected to the ventilation valve (3).

2. The waterproof switch airtightness measuring device according to claim 1, wherein: The pressing drive mechanism (9) has a pressing drive cylinder (901), a pressing telescopic rod (902), a drive connection block (903), a hanging frame structure (904), and a sliding connection sleeve (905).

3. The waterproof switch airtightness measuring device according to claim 2, characterized in that: The pressing drive cylinder (901) is arranged on the frame (1), and the pressing drive cylinder (901) is drivingly connected to the pressing telescopic rod (902).

4. The waterproof switch airtightness measuring device according to claim 3, wherein: The drive connection block (903) is movably arranged in the frame (1), and the drive connection block (903) is respectively connected to the pressing connection block (7) and the pressing telescopic rod (902).

5. The waterproof switch airtightness measurement device according to claim 4, characterized in that: The hanging frame structure (904) is connected to the drive connection block (903), the hanging frame structure (904) movably passes through the sliding connection sleeve (905), and the sliding connection sleeve (905) is connected to the frame (1).

6. The waterproof switch airtightness measuring device according to claim 5, wherein: The fixture seat frame (2) is provided with a plurality of guiding connection columns (201), and the plurality of guiding connection columns (201) are arranged around the periphery of the sealing ring (8).

7. The waterproof switch airtightness measurement device according to claim 6, characterized in that: The pressing connection block (7) has a plurality of guiding connection holes (701), and the plurality of guiding connection holes (701) are uniformly distributed in the pressing connection block (7) matching the guiding connection columns (201), and each guiding connection column (201) is correspondingly and movably connected to one guiding connection hole (701).

8. The waterproof switch airtightness testing device according to claim 7, wherein, It is provided with: a safety protection structure (11), and the safety protection structure (11) has a grating support (1101), a safety grating (1102), and a warning lamp (1103).

9. The waterproof switch airtightness measuring device according to claim 8, wherein: The grating support (1101) is arranged on the open side of the frame (1), and the safety grating (1102) is connected to the grating support (1101).

10. The waterproof switch airtightness measurement device according to claim 9, characterized in that: The warning light (1103) is arranged on the upper part of the frame (1), and the safety light curtain (1102) is electrically connected to the warning light (1103) and the pressing drive cylinder (901) respectively.

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