A vehicle-mounted lens airtightness detection device

Abstract

The utility model relates to the technical field of vehicle-mounted lens detection equipment, and specifically is a vehicle-mounted lens airtight detection device. The utility model comprises a fixed plate, a fixed frame and a movable frame arranged on the same side of the fixed plate, a lower jig is installed on the top of the fixed frame, an upper jig is installed on the bottom of the movable frame, a receiving cavity for receiving the vehicle-mounted lens is provided on the top of the lower jig, a first sealing ring is fixedly connected in the receiving cavity, a cavity is formed at the bottom of the upper jig, a second sealing ring is fixedly connected in the cavity, and mutually connected air holes are provided in the fixed frame and the lower jig. The utility model respectively installs the upper jig and the lower jig on the fixed frame and the movable frame, so that when performing vehicle-mounted lens detection, different upper jigs and lower jigs can be replaced according to the airtight detection requirements of different vehicle-mounted lenses, so as to facilitate airtight detection of vehicle-mounted lenses of various specifications.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted lens detection equipment, in particular to a vehicle-mounted lens airtight detection device. Background Art

[0002] The vehicle-mounted lens is mainly used for driving records and driving safety. It can record various situations of the vehicle during driving, such as changes in road conditions, changes in the environment inside and outside the vehicle, etc., and transmit them to the electronic controller for processing and storage in time. In order to ensure the quality of the vehicle-mounted lens, the vehicle-mounted lens needs to be tested for airtightness.

[0003] In the prior art, there is a vehicle-mounted lens air tightness detection device proposed in patent application number "CN201822257135.2", which includes an air leak meter, a frame, and an upper jig and a lower jig arranged on the frame relatively to each other. The upper jig is installed on the frame through an upper and lower driving device. A first cavity is provided at the bottom of the upper jig, and a second cavity is provided at the top of the lower jig. When the upper and lower jigs are pressed together, a space for accommodating the vehicle-mounted lens is formed between the first cavity and the second cavity.

[0004] However, in the above patent application, the upper and lower fixtures are both fixed, and can only press and seal a single specification of vehicle-mounted lens, and then perform air-tightness test on the vehicle-mounted lens, but cannot perform air-tightness test on vehicle-mounted lenses of multiple specifications. Utility Model Content

[0005] The utility model aims to provide a vehicle-mounted lens airtightness detection device to solve the problems raised in the above-mentioned background technology.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A vehicle-mounted lens airtightness detection device comprises a fixed plate and a fixed frame and a movable frame arranged on the same side of the fixed plate, wherein a lower jig is installed on the top of the fixed frame, and an upper jig is installed on the bottom of the movable frame. A accommodating cavity for accommodating the vehicle-mounted lens is opened on the top of the lower jig, and a first sealing ring is fixedly connected in the accommodating cavity. A cavity is formed at the bottom of the upper jig, and a second sealing ring is fixedly connected in the cavity.

[0008] The fixing frame and the lower mold are provided with interconnected air holes, the bottom of the lower mold is fixedly connected with an annular sealing cavity with a trapezoidal cross section, and the top of the fixing frame is fixedly connected with an annular sealing gasket with a trapezoidal cross section, and the annular sealing cavity and the annular sealing gasket are adapted to each other.

[0009] Preferably, the outer surfaces of the fixing frame and the lower jig are both fixedly connected with connecting flanges, and the connecting flanges are provided with bolts for fixing the two connecting flanges together.

[0010] Preferably, an air supply mechanism is provided on the fixed frame, and the air supply mechanism includes a push tube fixed on the fixed frame, a push piston is provided in the push tube, a push connecting rod is fixedly connected to one side of the push piston, one end of the push connecting rod passes through the push tube and extends to the outside of the push tube, and the push tube and the air hole are connected.

[0011] Preferably, a connecting pipe is fixedly connected to one side of the fixing frame, the connecting pipe is communicated with the air hole, and a one-way valve is fixedly installed on the air hole.

[0012] Preferably, the fixed frame and the fixed plate are fixedly connected, a gas passage communicating with each other is opened between the movable frame and the upper tool, and a pressure sensor is fixedly installed on the top of the movable frame, and the pressure sensor is used to detect the air pressure inside the gas passage.

[0013] Preferably, a side of the fixed plate away from the fixed frame is fixedly connected to a lifting cylinder, a top of the lifting cylinder is fixedly connected to a lifting connecting rod, one end of the lifting connecting rod is fixedly connected to the movable frame for driving the movable frame to move up and down.

[0014] Beneficial effects of the utility model:

[0015] The utility model installs an upper jig and a lower jig on a fixed frame and a movable frame respectively, so that when performing vehicle-mounted lens testing, different upper jigs and lower jigs can be replaced according to the airtightness testing requirements of different vehicle-mounted lenses, so as to facilitate the airtightness testing of vehicle-mounted lenses of various specifications. Furthermore, through the corresponding design of the annular sealing cavity and the annular sealing gasket, the sealing between the fixed frame and the lower jig, as well as the sealing between the movable frame and the upper jig can be effectively guaranteed, so as to avoid air leakage affecting the testing result of the vehicle-mounted lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the prior art description are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This utility model Figure 1 Rear view of the middle fixing plate;

[0019] Figure 3 This utility model Figure 1 A cross-sectional view of the middle fixing frame;

[0020] Figure 4 This utility model Figure 1Cross-sectional view of the movable frame.

[0021] The reference numerals in the figures are as follows:

[0022] 1. Fixed plate, 2. Fixed frame, 3. Movable frame, 4. Lower jig, 401, first sealing ring, 5. Upper jig, 501, second sealing ring, 6. Air hole, 7. Annular sealing chamber, 8. Annular sealing gasket, 9. Connecting flange, 10. Bolt, 11. Push pipe, 12. Push piston, 13. Push connecting rod, 14. Connecting pipe, 15. One-way valve, 16. Gas channel, 17. Air pressure sensor, 18. Lifting cylinder, 19. Lifting connecting rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] A vehicle-mounted lens airtightness detection device comprises a fixed plate 1 and a fixed frame 2 and a movable frame 3 arranged on the same side of the fixed plate 1, a lower jig 4 is installed on the top of the fixed frame 2, an upper jig 5 is installed on the bottom of the movable frame 3, a receiving cavity for receiving the vehicle-mounted lens is opened on the top of the lower jig 4, a first sealing ring 401 is fixedly connected in the receiving cavity, and a cavity is formed at the bottom of the upper jig 5, a second sealing ring 501 is fixedly connected in the cavity.

[0025] The fixing frame 2 and the lower mold 4 are both provided with interconnected air holes 6, the bottom of the lower mold 4 is fixedly connected with an annular sealing cavity 7 with a trapezoidal cross section, and the top of the fixing frame 2 is fixedly connected with an annular sealing gasket 8 with a trapezoidal cross section, and the annular sealing cavity 7 and the annular sealing gasket 8 are adapted to each other.

[0026] like Figure 1 The vehicle-mounted lens that needs to be tested for air tightness can be accommodated in the accommodating cavity at the top of the lower jig 4. The movable frame 3 is located above the fixed frame 2. The upper jig 5 and the lower jig 4 are located on the side where the fixed frame 2 and the movable frame 3 are close to each other. There is an opening at the bottom of the fixed plate 1 to facilitate the fixing of the fixed plate 1 to an external device.

[0027] The outer surfaces of the fixing frame 2 and the lower jig 4 are both fixedly connected with connecting flanges 9, and the connecting flanges 9 are provided with bolts 10 for fixing the two connecting flanges together.

[0028] like Figure 3 and Figure 4There is an opening on the connecting flange 9 so that the bolt 10 can pass through the connecting flange. The installation method between the upper jig 5 and the movable frame 3 is the same as the installation method between the lower jig 4 and the fixed frame 2. There is also an annular sealing chamber 7 and an annular sealing gasket 8 between the upper jig 5 and the movable frame 3.

[0029] The fixed frame 2 is provided with an air supply mechanism, which includes a push tube 11 fixed on the fixed frame 2, a push piston 12 is provided in the push tube 11, a push connecting rod 13 is fixedly connected to one side of the push piston 12, one end of the push connecting rod 13 passes through the push tube 11 and extends to the outside of the push tube 11, and the push tube 11 is connected to the air hole 6.

[0030] A connecting pipe 14 is fixedly connected to one side of the fixing frame 2 . The connecting pipe 14 is connected to the air hole 6 . A one-way valve 15 is fixedly installed on the air hole 6 .

[0031] like Figure 3 The one-way valve 15 can ensure that external air can only enter the air hole 6 through the connecting pipe 14, but cannot be discharged from the air hole 6 through the connecting pipe 14.

[0032] The fixed frame 2 and the fixed plate 1 are fixedly connected, a gas passage 16 communicating with each other is opened between the movable frame 3 and the upper metallurgical tool 5, and an air pressure sensor 17 is fixedly installed on the top of the movable frame 3, and the air pressure sensor 17 is used to detect the air pressure inside the gas passage 16.

[0033] like Figure 1 and Figure 4 The air pressure sensor 17 can be connected to an external sound and light alarm, so that when the air pressure sensor 17 detects that the air pressure reaches a set value, it can respond by means of a sound and light alarm. The air pressure sensor 17 is a TRX-117 type electronic air pressure sensor in the prior art.

[0034] The fixed plate 1 is fixedly connected to a lifting cylinder 18 on one side away from the fixed frame 2, and a lifting connecting rod 19 is fixedly connected to the top of the lifting cylinder 18. One end of the lifting connecting rod 19 is fixedly connected to the movable frame 3 for driving the movable frame 3 to move up and down.

[0035] like Figure 1 and Figure 2 There is a vertically arranged slide groove on the fixed plate 1, so that the fixed plate 1 will not affect the up and down movement of the lifting connecting rod 19.

[0036] The working principle of the vehicle-mounted lens airtightness detection device provided by the utility model is as follows:

[0037] The two connecting flanges 9 can be fixed together with the fixing frame 2 and the lower fixture 4 by passing the bolts 10 through the two connecting flanges 9, and the annular sealing gasket 8 is just clamped into the annular sealing cavity 7 to achieve the sealing between the fixing frame 2 and the lower fixture 4. On the contrary, the bolts 10 can be removed to separate the fixing frame 2 and the lower fixture 4.

[0038] When it is necessary to perform air tightness test on the vehicle lens, the vehicle lens to be tested is placed in the accommodating cavity at the top of the lower jig 4, and then the lifting cylinder 18 contracts to drive the lifting connecting rod 19 to move downward, and the lifting connecting rod 19 drives the movable frame 3 and the upper jig 5 to move downward, and the upper jig 5 and the lower jig 4 are close to each other. At this time, the vehicle lens can be squeezed, so that the first sealing ring 401 seals between the vehicle lens and the air hole, and the second sealing ring 501 seals between the vehicle lens and the gas channel 16;

[0039] Then, the push connecting rod 13 can be pushed toward the direction of the fixing frame 2, so that the push piston 12 squeezes the air in the push tube 11 into the air hole 6. At this time, if there is no airtightness problem with the vehicle-mounted lens, the air pressure part in the gas channel 16 will not change. If there is a sealing problem with the vehicle-mounted lens, the air pressure sensor 17 will detect that the air pressure in the gas channel 16 increases, thereby realizing the airtightness detection of the vehicle-mounted lens.

[0040] Compared with the related art, the vehicle-mounted lens airtightness detection device provided by the utility model has the following beneficial effects:

[0041] The utility model installs an upper jig 5 and a lower jig 4 on a fixed frame 2 and a movable frame 3 respectively, so that when performing vehicle-mounted lens testing, different upper jigs 5 and lower jigs 4 can be replaced according to the airtightness testing requirements of different vehicle-mounted lenses, which is convenient for performing airtightness testing on vehicle-mounted lenses of various specifications. Furthermore, through the corresponding design of the annular sealing cavity 7 and the annular sealing gasket 8, the sealing between the fixed frame 2 and the lower jig 4, as well as the sealing between the movable frame 3 and the upper jig 5 can be effectively guaranteed, thereby preventing air leakage from affecting the testing result of the vehicle-mounted lens.

[0042] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A vehicle-mounted lens airtightness detection device, comprising a fixed plate (1) and a fixed frame (2) and a movable frame (3) arranged on the same side of the fixed plate (1), characterized in that: A lower jig (4) is installed on the top of the fixed frame (2), and an upper jig (5) is installed on the bottom of the movable frame (3); a receiving cavity for receiving the vehicle-mounted lens is provided on the top of the lower jig (4), a first sealing ring (401) is fixedly connected in the receiving cavity, and a cavity is formed at the bottom of the upper jig (5), a second sealing ring (501) is fixedly connected in the cavity; The fixed frame (2) and the lower mold (4) are both provided with mutually communicating air holes (6); the bottom of the lower mold (4) is fixedly connected with an annular sealing cavity (7) with a trapezoidal cross section; the top of the fixed frame (2) is fixedly connected with an annular sealing gasket (8) with a trapezoidal cross section; the annular sealing cavity (7) and the annular sealing gasket (8) are adapted to each other.

2. The vehicle-mounted lens airtightness detection device according to claim 1, characterized in that: The outer surfaces of the fixing frame (2) and the lower metallurgical tool (4) are both fixedly connected with a connecting flange (9), and the connecting flange (9) is provided with bolts (10) for fixing the two connecting flanges together.

3. The vehicle-mounted lens airtightness detection device according to claim 1, characterized in that: The fixed frame (2) is provided with an air supply mechanism, which comprises a push tube (11) fixed on the fixed frame (2), a push piston (12) being provided in the push tube (11), a push connecting rod (13) being fixedly connected to one side of the push piston (12), one end of the push connecting rod (13) passing through the push tube (11) and extending to the outside of the push tube (11), and the push tube (11) and the air hole (6) being in communication.

4. The vehicle-mounted lens airtightness detection device according to claim 3, characterized in that: A connecting pipe (14) is fixedly connected to one side of the fixing frame (2), the connecting pipe (14) is connected to the air hole (6), and a one-way valve (15) is fixedly installed on the air hole (6).

5. The vehicle-mounted lens airtightness detection device according to claim 1, characterized in that: The fixed frame (2) and the fixed plate (1) are fixedly connected, a gas passage (16) which is interconnected is provided between the movable frame (3) and the upper metallurgical tool (5), and a gas pressure sensor (17) is fixedly installed on the top of the movable frame (3), and the gas pressure sensor (17) is used to detect the gas pressure inside the gas passage (16).

6. The vehicle-mounted lens airtightness detection device according to claim 5, characterized in that: A lifting cylinder (18) is fixedly connected to the side of the fixed plate (1) away from the fixed frame (2), a lifting connecting rod (19) is fixedly connected to the top of the lifting cylinder (18), and one end of the lifting connecting rod (19) is fixedly connected to the movable frame (3) for driving the movable frame (3) to move up and down.

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