A lens air tightness test fixture

Abstract

The utility model relates to the technical field of test fixtures, and discloses a lens air tightness test fixture, including a mounting box, a mounting base is fixedly mounted on the bottom of the mounting box, an air tightness detection mechanism is arranged on the top and right side of the mounting box, and a fixed mounting mechanism is arranged on the outside of the mounting base; the air tightness detection mechanism includes a lens mounting assembly and an air pipe mounting assembly, and the air pipe mounting assembly is arranged on the right side of the lens mounting assembly. The lens air tightness test fixture can be installed on the lens body by using the locking threaded hole provided, can normally inlet air by using the air inlet, can observe the air pressure by using the barometer, can introduce gas by using the air pipe body, and can judge the air tightness by observing whether bubbles are generated. The simple combination can reduce the cost of detecting air tightness, and the method of observing bubbles and the barometer at the same time can make the test results easy to observe, and the simple installation makes the test operation more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of testing fixtures, in particular to a lens air tightness testing fixture. Background Art

[0002] As the core component of high-end camera equipment, the lens needs to ensure its stability and reliability in various environments. If the camera lens is not well sealed, water vapor may enter, affecting the normal operation of the lens and even damaging internal parts. Therefore, it is very important to use a lens airtightness test fixture to test the airtightness and waterproofness of the camera lens.

[0003] In the prior art, when conducting a lens air tightness test, the lens is usually installed on an air tightness tester for testing. However, in actual use, the air tightness tester is expensive, the test operation is cumbersome, and the test results are not easy to observe. Therefore, it is necessary to improve a lens air tightness test fixture to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a lens airtightness test fixture to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lens airtightness test fixture, comprising a mounting box, a mounting base is fixedly mounted on the bottom of the mounting box, an airtightness detection mechanism is arranged on the top and right side of the mounting box, and a fixed mounting mechanism is arranged on the outer side of the mounting base.

[0006] The airtight detection mechanism comprises a lens mounting assembly and an air pipe mounting assembly, and the air pipe mounting assembly is arranged on the right side of the lens mounting assembly.

[0007] Preferably, the lens mounting assembly includes a pressure gauge, which is fixedly mounted on the left side of the mounting box, a locking threaded hole is provided on the top of the mounting box, an air inlet is provided on the right side of the mounting box, a rubber pad is fixedly mounted on the top of the mounting box, and the lens body is mounted on the internal threads of the locking threaded hole, so as to facilitate fixing and locking of the lens body through the lens mounting assembly.

[0008] Preferably, holes are provided at corresponding positions of the rubber pad and the lens body, and the lens body is slidably mounted inside the hole provided inside the rubber pad, so as to fix the lens body in a normal state.

[0009] Preferably, the air pipe installation assembly includes a fixed nozzle head, which is fixedly installed on the right side of the installation box, a sealing threaded sleeve is rotatably installed on the outside of the fixed nozzle head, a docking joint is installed on the internal threads of the sealing threaded sleeve, and an air pipe body is fixedly installed on the right side of the docking joint to facilitate the entry of gas through the air pipe installation assembly.

[0010] Preferably, holes are provided at corresponding positions of the fixed nozzle head and the docking head, and the docking head is movably installed inside the hole provided inside the fixed nozzle head, so as to facilitate gas transmission of the trachea body.

[0011] Preferably, the fixed installation mechanism includes a plug, which is slidably installed inside the installation base, a pull rod frame is fixedly installed on the outside of the plug, a spring is provided on the outside of the pull rod frame, and a base with side ears is slidably installed on the outside of the pull rod frame, so as to facilitate fixing the installation box through the fixed installation mechanism.

[0012] Preferably, the plug is slidably installed inside the base with side ears, holes are provided at corresponding positions of the base with side ears and the pull rod frame, and the pull rod frame is slidably installed inside the holes provided inside the base with side ears, so that the pull rod frame can be pulled normally.

[0013] Compared with the prior art, the utility model provides a lens air tightness test fixture, which has the following beneficial effects:

[0014] 1. The lens air tightness test fixture, through the air tightness detection mechanism, can be used to install the lens body by using the locking threaded hole, and can be used to normally intake air by using the air inlet. The air pressure can be observed by using the pressure gauge, and the gas can be introduced by using the air pipe body. The air tightness can be judged by observing whether bubbles are generated. The simple combination can reduce the cost of air tightness detection, and the method of observing bubbles and the pressure gauge can make it easy to observe the test results. At the same time, the installation is simple, making the test operation more convenient.

[0015] 2. The lens air tightness test fixture has a fixed installation mechanism. During use, the provided plug is used to clamp the installation base, so that the installation base can be fixed, so that the installation box is fixed, and the lens body is prevented from being damaged due to accidental collision and knocking over the installation box, thereby improving the safety of the fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0017] Figure 1 This is a schematic diagram of the appearance structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the appearance structure of the airtight detection mechanism of the utility model;

[0019] Figure 3 This is a schematic diagram of the exploded appearance structure of the lens mounting assembly of the utility model;

[0020] Figure 4 This is a schematic diagram of the exploded appearance structure of the air pipe installation assembly of the utility model;

[0021] Figure 5 This is a schematic diagram of the cross-sectional appearance structure of the fixed installation mechanism of the utility model;

[0022] Figure 6 This is a schematic diagram of the utility model plug and its related structures.

[0023] In the figure: 1. Installation box; 2. Airtight detection mechanism; 21. Lens installation assembly; 211. Pressure gauge; 212. Locking threaded hole; 213. Air inlet; 214. Rubber pad; 215. Lens body; 22. Air pipe installation assembly; 221. Fixed nozzle; 222. Sealing threaded sleeve; 223. Butt joint; 224. Air pipe body; 3. Fixed installation mechanism; 31. Plug; 32. Pull rod frame; 33. Spring; 34. Base with side ears; 4. Installation base. DETAILED DESCRIPTION

[0024] 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 in 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.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Embodiment 1:

[0027] See also Figure 1-4The utility model provides a technical solution: a lens air tightness test fixture, including a mounting box 1, a mounting base 4 is fixedly mounted on the bottom of the mounting box 1, an airtight detection mechanism 2 is arranged on the top and right side of the mounting box 1, and a fixed mounting mechanism 3 is arranged on the outer side of the mounting base 4.

[0028] The airtight detection mechanism 2 includes a lens mounting assembly 21 and an air pipe mounting assembly 22 . The air pipe mounting assembly 22 is arranged on the right side of the lens mounting assembly 21 .

[0029] Furthermore, the lens mounting assembly 21 includes a barometer 211, which is fixedly mounted on the left side of the mounting box 1. A locking threaded hole 212 is provided on the top of the mounting box 1, an air inlet 213 is provided on the right side of the mounting box 1, a rubber pad 214 is fixedly mounted on the top of the mounting box 1, and a lens body 215 is mounted on the internal threads of the locking threaded hole 212, so as to facilitate fixing and locking of the lens body 215 through the lens mounting assembly 21.

[0030] Furthermore, holes are provided at corresponding positions of the rubber pad 214 and the lens body 215 , and the lens body 215 is slidably installed inside the hole provided inside the rubber pad 214 , so as to fix the lens body 215 in a normal state.

[0031] Furthermore, the air pipe installation assembly 22 includes a fixed nozzle head 221, which is fixedly installed on the right side of the installation box 1. A sealing threaded sleeve 222 is rotatably installed on the outside of the fixed nozzle head 221, and a docking joint 223 is installed on the internal threads of the sealing threaded sleeve 222. An air pipe body 224 is fixedly installed on the right side of the docking joint 223 to facilitate the entry of gas through the air pipe installation assembly 22.

[0032] Furthermore, holes are provided at corresponding positions of the fixed nozzle head 221 and the docking head 223 , and the docking head 223 is movably installed inside the hole provided inside the fixed nozzle head 221 , so as to facilitate air transfer of the trachea body 224 .

[0033] Embodiment 2:

[0034] See also Figure 5-6 In combination with the first embodiment, it is further obtained that the fixed installation mechanism 3 includes a plug 31, the plug 31 is slidably installed inside the installation base 4, a pull rod frame 32 is fixedly installed on the outside of the plug 31, a spring 33 is arranged on the outside of the pull rod frame 32, and a base 34 with side ears is slidably installed on the outside of the pull rod frame 32, so as to facilitate fixing the installation box 1 through the fixed installation mechanism 3.

[0035] Furthermore, the plug 31 is slidably installed inside the base 34 with side ears, holes are opened at corresponding positions of the base 34 with side ears and the pull rod frame 32, and the pull rod frame 32 is slidably installed inside the holes opened inside the base 34 with side ears, so that the pull rod frame 32 can be pulled normally.

[0036] In actual operation, when the device is used, the side ears provided on the outside of the side ear base 34 are used to fix the side ear base 34 so that it is fixed inside a water-filled container. At this time, the installation box 1 can be installed, and the installation box 1 is pressed to make the installation base 4 enter the inside of the side ear base 34. When the installation base 4 contacts the plug 31, the plug 31 slides outward. When the bottom of the installation base 4 contacts the inner side of the bottom of the side ear base 34, the plug 31 is inserted into the installation base 4 under the action of the spring 33. Inside, the mounting box 1 is fixed, and the lens body 215 is rotated to allow the lens body 215 to enter the interior of the locking threaded hole 212. At this time, one hand presses the docking joint 223 to allow it to enter the interior of the sealing threaded sleeve 222, and the other hand rotates the sealing threaded sleeve 222 to install the sealing threaded sleeve 222 and the docking joint 223, completing the installation of the mounting base 4. At this time, open the pressure gauge 211, and fill water into the container to observe whether bubbles are generated. After completing the airtightness test, the moisture inside the container can be discharged and the lens can be taken out.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A lens air tightness test fixture, comprising a mounting box (1), characterized in that: A mounting base (4) is fixedly mounted on the bottom of the mounting box (1), an airtightness detection mechanism (2) is disposed on the top and right side of the mounting box (1), and a fixed mounting mechanism (3) is disposed on the outer side of the mounting base (4); The airtight detection mechanism (2) comprises a lens mounting assembly (21) and an air pipe mounting assembly (22), wherein the air pipe mounting assembly (22) is arranged on the right side of the lens mounting assembly (21).

2. The lens air tightness test fixture according to claim 1, characterized in that: The lens mounting assembly (21) comprises a pressure gauge (211), the pressure gauge (211) being fixedly mounted on the left side of the mounting box (1), a locking threaded hole (212) being provided on the top of the mounting box (1), an air inlet (213) being provided on the right side of the mounting box (1), a rubber pad (214) being fixedly mounted on the top of the mounting box (1), and a lens body (215) being threadedly mounted inside the locking threaded hole (212).

3. The lens air tightness test fixture according to claim 2, characterized in that: The rubber pad (214) and the lens body (215) are provided with holes at corresponding positions, and the lens body (215) is slidably mounted inside the hole provided inside the rubber pad (214).

4. The lens air tightness test fixture according to claim 1, characterized in that: The air pipe installation assembly (22) comprises a fixed nozzle head (221), the fixed nozzle head (221) is fixedly installed on the right side of the installation box (1), a sealing threaded sleeve (222) is rotatably installed on the outside of the fixed nozzle head (221), a docking joint (223) is threadedly installed on the inside of the sealing threaded sleeve (222), and an air pipe body (224) is fixedly installed on the right side of the docking joint (223).

5. The lens air tightness test fixture according to claim 4, characterized in that: Holes are provided at corresponding positions of the fixed nozzle head (221) and the docking head (223), and the docking head (223) is movably mounted inside the hole provided inside the fixed nozzle head (221).

6. The lens air tightness test fixture according to claim 1, characterized in that: The fixed installation mechanism (3) comprises a plug (31), the plug (31) is slidably installed inside the installation base (4), a pull rod frame (32) is fixedly installed on the outside of the plug (31), a spring (33) is arranged on the outside of the pull rod frame (32), and a base (34) with side ears is slidably installed on the outside of the pull rod frame (32).

7. The lens air tightness test fixture according to claim 6, characterized in that: The plug (31) is slidably mounted inside the base with side ears (34), holes are provided at corresponding positions of the base with side ears (34) and the pull rod frame (32), and the pull rod frame (32) is slidably mounted inside the holes provided inside the base with side ears (34).

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