CN221149115U

CN221149115U - Inflating and vacuumizing device for camera sealing cavity

Info

Publication number: CN221149115U
Application number: CN202322957620.1U
Authority: CN
Inventors: 陈兵; 邹兴文; 胡亚男; 康建飞
Original assignee: Xintu Photonics Co ltd; Fujian Xintu Photoelectric Co ltd
Current assignee: Xintu Photonics Co ltd; Fujian Xintu Photoelectric Co ltd
Priority date: 2023-11-02
Filing date: 2023-11-02
Publication date: 2024-06-14
Anticipated expiration: 2033-11-02

Abstract

The utility model relates to the technical field of cameras, in particular to an inflation and vacuumizing device for a sealed cavity of a camera, which is a structural device for putting the sealed cavity of a refrigeration camera into the device and inflating or vacuumizing the sealed cavity of the camera more conveniently and rapidly by matching with a plug with a sealing ring. The side wall of the hollow tank body is embedded with an operation port communicated with the outside, a corrugated pipe is arranged in the operation port and is contacted with the inner side wall of the operation port through a sealing ring to form a seal, an operation rod is arranged in the corrugated pipe, and the operation rod and the corrugated pipe are sealed in a rotating way through magnetic fluid or the sealing ring. The advantages are that: first, compare in reserving the check valve at camera sealed cavity casing, can to a great extent reduce the size demand of sealed cavity to reduce the production and rise the cost. Second, a single camera is operated using a more suitable space than in a glove box, the amount of gas used or the time to pump air is reduced, and a higher vacuum can be achieved. Thirdly, compare in the technology that uses copper pipe clamp to seal, sealed cavity uses the end cap that has the sealing washer can used repeatedly, need not to press from both sides and seal the operation, convenient and fast.

Description

Inflating and vacuumizing device for camera sealing cavity

Technical Field

The utility model relates to the technical field of cameras, in particular to an inflation and vacuumizing device for a camera sealing cavity.

Background

The refrigerating camera is generally provided with a sealed cavity, and the working environment of the image sensor is ensured by filling inert gas into the sealed cavity; on the other hand, helium with certain pressure is filled into the cavity during leak detection of the sealed cavity, and then a helium mass spectrometer leak detector is used for detecting the leak rate of the sealed cavity.

Several methods are commonly used for inflating or evacuating the sealed cavity of a refrigeration camera: firstly, reserving a one-way valve in a sealed cavity shell, and filling gas into the cavity or vacuumizing the cavity through the one-way valve; secondly, placing the sealed cavity into a glove box under the condition that the sealed cavity is opened, then filling gas or vacuumizing the glove box, and then operating and locking the sealed cavity in the glove box; thirdly, welding an oxygen-free copper pipe on the shell of the sealed cavity, filling gas or vacuumizing the sealed cavity through the oxygen-free copper pipe, and finally pinching off and sealing the copper pipe.

Disadvantage 1: because the check valve itself is composed of a plurality of parts, the volume has certain requirements, and the check valve cannot be installed under the condition of smaller size of the sealing cavity. And the check valve can only be used from one direction, and the inflation and the vacuumizing can be realized only by matching 2 check valves with opposite directions. On the other hand the cost of the non-return valve is relatively high.

Disadvantage 2: the glove box has larger volume and is limited by places, spaces and the like; when the glove box is inflated, a large amount of gas is used, when the number of cameras is small, the glove box is too low in efficiency, and the inflation and air extraction time is long.

Disadvantage 3: the processing mode of copper pipe clamping is reserved, the copper pipe cannot be reused after being clamped, and parts connected with the copper pipe need to be replaced.

The above 3 common treatment methods for inflating or vacuumizing the sealed cavity of the sensor have obvious defects in actual operation and use.

Disclosure of utility model

The technical problems to be solved by the utility model are as follows: an inflatable and vacuumizable device for a sealed cavity of a camera is provided.

In order to solve the technical problems, the utility model adopts the following technical scheme:

The utility model provides a camera seal cavity's inflation, evacuating device, is including being sealed cavity jar body, be equipped with the interface that is used for connecting compressed gas jar or vacuum equipment on the cavity jar body, the lateral wall of cavity jar body inlays and is equipped with the operation mouth with external intercommunication, be equipped with the bellows just in the operation mouth the bellows passes through the sealing washer and contacts with the operation mouth inside wall and forms sealedly, install the action bars just in the bellows through magnetic fluid or sealing washer between action bars and the bellows so that the rotation between action bars and the bellows is sealed, the outside of cavity jar body is arranged in to action bars one end, the inside of cavity jar body is arranged in to the action bars other end and is used for carrying out the operation of screwing and loosening to the sealed end cap of sealed cavity.

Further, the hollow tank body comprises a bottom tank with an opening at the upper end and an upper cover with the opening sealed by a sealing ring, the interface is arranged on the bottom tank, and the operation opening is arranged on the upper cover.

Furthermore, the upper cover is also provided with an observation window interface, a window pressing ring is arranged at the edge of the observation window interface, the quartz window is pressed and fixed on the observation window interface by the window pressing ring, and a sealing ring is arranged between the observation window interface and the quartz window.

Further, the upper cover and the observation window interface are fixed through welding and sealing.

Further, the number of the interfaces is two, namely a KF25 interface for connecting a compressed gas tank and a KF25 interface for connecting vacuum equipment.

Further, the operation port is a KF50 operation port.

The utility model has the beneficial effects that:

The utility model provides an inflation and vacuumizing device for a sealed cavity of a camera, which is a structural device for putting the sealed cavity of a refrigeration camera into the device and matching with a plug with a sealing ring to inflate or vacuumize the sealed cavity of the camera more conveniently and rapidly. The advantages are that: first, compare in reserving the check valve at camera sealed cavity casing, can to a great extent reduce the size demand of sealed cavity to reduce the production and rise the cost. Second, a single camera is operated using a more suitable space than in a glove box, the amount of gas used or the time to pump air is reduced, and a higher vacuum can be achieved. Thirdly, compare in the technology that uses copper pipe clamp to seal, sealed cavity uses the end cap that has the sealing washer can used repeatedly, need not to press from both sides and seal the operation, convenient and fast.

Drawings

FIG. 1 is a schematic diagram of a camera sealed cavity inflation and evacuation device according to the present utility model;

Description of the reference numerals:

1. A bottom tank; 2. KF25 interface; 3. KF25 interface; 4. an upper cover;

5. An observation window interface; 6. an operation port; 7. quartz window sheets; 8. a window sheet pressing ring; 9. an operation lever; 10. a seal ring; 11. a bellows; 12. a seal ring; 13. sealing the cavity; 14. and (5) sealing the plug.

Detailed Description

In order to describe the technical contents, the achieved objects and effects of the present utility model in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.

Referring to fig. 1, the inflation and evacuation device for a camera sealed cavity provided by the utility model comprises a sealed hollow tank body, wherein the hollow tank body is columnar, the hollow tank body comprises a bottom tank 1 with an opening at the upper end and an upper cover 4 for sealing the opening through a sealing ring, the bottom tank 1 is provided with two interfaces for connecting a compressed gas tank or vacuum equipment, and the two interfaces are respectively a KF25 interface 2 for connecting the compressed gas tank and a KF25 interface 3 for connecting the vacuum equipment, which are formed by sealing welding.

The upper cover of the hollow tank body is welded with an operation port 6 and an observation window port 5 communicated with the outside in a sealing manner, and the upper cover 4 and the observation window port 5 are fixed through welding in a sealing manner. Wherein, the operation port 6 is a KF50 operation port. The corrugated pipe 11 is arranged in the operation port, the corrugated pipe 11 is contacted with the inner side wall of the operation port through the sealing ring 12 to form sealing, the operation rod 9 is arranged in the corrugated pipe 11, the operation rod and the corrugated pipe are sealed in a rotating way through the magnetic fluid or the sealing ring 10, one end of the operation rod 9 is arranged outside the hollow tank body, and the other end of the operation rod 9 is arranged inside the hollow tank body and used for carrying out screwing and loosening operations on the sealing plug 14 of the sealing cavity.

The edge of the observation window interface 5 is provided with a window pressing ring 8, the quartz window 7 is pressed and fixed on the observation window interface 5 by the window pressing ring 8, and a sealing ring is arranged between the observation window interface 5 and the quartz window 7.

The working principle of the inflation and vacuumizing device of the camera sealing cavity is as follows:

The sealed cavity 13 of the camera is put into the device, wherein the sealed cavity 13 is reserved with an opening of the sealing plug 14, and a sealed space is formed after the sealing plug 14 is locked. And the position of the sealing cavity 13 needs to be aligned with the position of the operating lever 9 in order to facilitate the subsequent accurate operation. The operation of screwing and loosening the sealing plug 14 can be performed through the operation rod 9, and then the operation of inflating or vacuumizing the sealing cavity is realized by matching with a KF25 interface for connecting a compressed gas tank and a KF25 interface for connecting vacuum equipment.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent changes made by the specification and drawings of the present utility model, or direct or indirect application in the relevant art, are included in the scope of the present utility model.

Claims

1. The utility model provides a camera seal cavity's inflation, evacuating device, is including being sealed cavity jar body, be equipped with the interface that is used for connecting compressed gas jar or vacuum equipment on the cavity jar body, its characterized in that, the lateral wall of cavity jar body inlays and is equipped with the operation mouth with external intercommunication, be equipped with the bellows just in the operation mouth the bellows passes through sealing washer and the contact of operation mouth inside wall and forms sealedly, install the action bars in the bellows just through magnetic fluid or sealing washer between action bars and the bellows so that the rotation between action bars and the bellows is sealed, the outside of cavity jar body is arranged in to action bars one end, the inside of cavity jar body is arranged in to the action bars other end and is used for screwing and loosening the operation to the sealed end cap of sealed cavity.

2. The device for inflating and evacuating the sealed camera cavity according to claim 1, wherein said hollow can body comprises a bottom can with an opening at the upper end and an upper cover for sealing said opening by a sealing ring, said connector is provided on said bottom can, and said operation opening is provided on said upper cover.

3. The device for inflating and evacuating the sealed camera cavity according to claim 2, wherein the upper cover is further provided with an observation window interface, a window pressing ring is arranged at the edge of the observation window interface, the window pressing ring presses and fixes the quartz window on the observation window interface, and a sealing ring is arranged between the observation window interface and the quartz window.

4. The device for inflating and evacuating a sealed cavity of a camera according to claim 3, wherein said upper cover is secured to said viewing window interface by a welded seal.

5. The device for inflating and evacuating the sealed cavity of the camera according to claim 1, wherein the number of the interfaces is two, namely a KF25 interface for connecting a compressed gas tank and a KF25 interface for connecting a vacuum device.

6. The apparatus of claim 5, wherein the port is a KF50 port.