CN219244910U

CN219244910U - Vacuum cabin assembly

Info

Publication number: CN219244910U
Application number: CN202320367585.5U
Authority: CN
Inventors: 薛培; 武晓飞; 杨浩; 马东亮; 田恒亮
Original assignee: Tehi Hydrogen Energy Testing Baoding Co ltd
Current assignee: Tehi Hydrogen Energy Testing Baoding Co ltd
Priority date: 2023-03-02
Filing date: 2023-03-02
Publication date: 2023-06-23
Anticipated expiration: 2033-03-02

Abstract

The utility model discloses a vacuum chamber assembly. The vacuum cabin assembly comprises a cabin body, a cabin door and an air injection device, wherein a vacuum cavity is formed in the cabin body; the cabin door is movably arranged on the cabin body so as to selectively open or close the vacuum cavity; the gas injection device is arranged on the cabin body, at least part of the gas injection device extends into the vacuum cavity and is suitable for pressurizing and/or depressurizing a gas cylinder to be detected carried in the vacuum cavity. According to the vacuum cabin assembly, the cabin body is arranged to form the vacuum cavity for accommodating the to-be-detected gas cylinder, and the cabin door is movably arranged on the cabin body, so that the opening or closing of the vacuum cavity is realized, the to-be-detected gas cylinder is convenient to place or take out, and when the to-be-detected gas cylinder leaks, the cabin door can be used for decompressing the vacuum cavity, so that the safety of the vacuum cabin assembly is improved. In addition, the vacuum chamber component is further provided with an air injection device for pressurizing and/or depressurizing the air cylinder to be detected, so that the detection of the air cylinder to be detected by the vacuum chamber component is realized, and the structure is simple and safe.

Description

Vacuum cabin assembly

Technical Field

The utility model relates to the field of high-pressure gas cylinder detection, in particular to a vacuum cabin assembly.

Background

At present, a helium leakage detection method of a vacuum cabin method of a high-pressure gas cylinder of a fuel cell automobile is the most important technical means for detecting the air tightness of the high-pressure gas cylinder. In this test, the vacuum chamber is the core of the test, and is the environmental space in which the test is conducted. The design of the vacuum chamber of the high-pressure gas cylinder needs special consideration because of the high-pressure characteristic of the gas cylinder and the accuracy of helium detection of the vacuum chamber.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. To this end, an object of the present utility model is to propose a vacuum chamber assembly. According to the vacuum cabin assembly, the cabin body is arranged to form the vacuum cavity for accommodating the to-be-detected gas cylinder, and the cabin door is movably arranged on the cabin body, so that the opening or closing of the vacuum cavity is realized, the to-be-detected gas cylinder is convenient to place or take out, and when the to-be-detected gas cylinder leaks, the cabin door can be used for decompressing the vacuum cavity, so that the safety of the vacuum cabin assembly is improved. In addition, the vacuum chamber component is further provided with an air injection device for pressurizing and/or depressurizing the air cylinder to be detected, so that the detection of the air cylinder to be detected by the vacuum chamber component is realized, and the structure is simple and safe.

The vacuum cabin assembly comprises a cabin body, a cabin door and an air injection device, wherein a vacuum cavity is formed in the cabin body; the cabin door is movably arranged on the cabin body so as to selectively open or close the vacuum cavity; the gas injection device is arranged on the cabin body, and at least part of the gas injection device extends into the vacuum cavity and is suitable for pressurizing and/or depressurizing a gas cylinder to be detected carried in the vacuum cavity.

According to one embodiment of the utility model, the vacuum chamber assembly provides the required environmental space for the testing process of the cylinder to be tested by providing a chamber body and forming a vacuum chamber within the chamber body. Meanwhile, a cabin door is movably arranged on one side of the cabin body, and the movable arrangement of the cabin door is convenient for opening or closing the vacuum cavity, so that the cabin door can be opened and put into the gas cylinder to be detected and then closed for detection test when the gas cylinder to be detected is detected. In addition, the vacuum chamber component is further provided with an air injection device, at least part of the air injection device extends into the vacuum cavity so as to conveniently pressurize and/or decompress the to-be-detected air cylinder carried by the vacuum cavity, and further detection of air tightness of the to-be-detected air cylinder is achieved. Specifically, after the gas cylinder to be detected is put into the vacuum cavity, the vacuum cavity is sealed through the cabin door, the gas cylinder to be detected is pressurized through the gas injection device, in the pressurizing process, if the gas cylinder to be detected leaks, the pressure of the vacuum cavity is overlarge, the cabin door can be opened to release the pressure of the vacuum cavity, the safety of the vacuum cavity and the gas cylinder to be detected is ensured, and meanwhile, the gas injection device can also release the pressure of the gas cylinder to be detected after the gas cylinder to be detected is pressurized and detected, so that the safety of the gas cylinder to be detected is ensured. The arrangement of the vacuum cabin component provides a safe detection environment for the gas cylinder to be detected, and meanwhile, the arrangement of the cabin door improves the safety of the vacuum cabin component.

According to one embodiment of the utility model, the gas injection device comprises a connecting line, at least part of which extends into the vacuum chamber and communicates with the gas cylinder to be checked, the connecting line being configured as a rigid line.

According to an embodiment of the utility model, the vacuum chamber assembly further comprises an explosion protection device arranged on the chamber body, which explosion protection device is adapted to communicate the vacuum chamber with the outside after the pressure in the vacuum chamber reaches a preset value.

According to one embodiment of the utility model, the explosion-proof device comprises a communicating pipe and a rupture disc, wherein the communicating pipe is arranged on the peripheral wall of the cabin body, and one end of the communicating pipe is communicated with the vacuum cavity; the rupture disk is arranged on the communicating pipe and seals the other end of the communicating pipe, and the rupture disk is suitable for conducting the communicating pipe with the outside after the pressure in the vacuum cavity reaches a preset value.

According to one embodiment of the utility model, the vacuum chamber assembly further comprises a vacuum degree detection device and a vacuum pump, wherein the vacuum degree detection device is arranged on the chamber body and is suitable for detecting the vacuum degree in the vacuum chamber; the vacuum pump is communicated with the vacuum cavity and is suitable for vacuumizing the vacuum cavity; the vacuum degree detection device and the vacuum pump are arranged at two ends of the cabin body in the extending direction.

According to one embodiment of the utility model, a detection pipeline is arranged between the air inlet of the vacuum pump and the cabin body; the vacuum chamber assembly further comprises a detection unit which is communicated with the vacuum chamber through the detection pipeline and is suitable for detecting the concentration of detection gas in the vacuum chamber.

According to one embodiment of the utility model, the cabin is configured as a cylinder, one end of the cabin is formed with a hatch opening communicated with the vacuum cavity, the hatch opening is hinged with the cabin to selectively close the hatch opening, and the cross-sectional area of the other end of the cabin is gradually reduced.

According to one embodiment of the utility model, the vacuum chamber assembly further comprises a rail and a bracket, wherein the rail is arranged in the vacuum chamber and has the same extending direction as the chamber body; the support is movably arranged on the track, and a supporting groove suitable for supporting the gas cylinder to be detected is formed on the support.

According to one embodiment of the utility model, the track is configured as two tracks arranged parallel to each other and spaced apart; the bracket includes a first bracket and a second bracket configured to be arc-shaped protruding toward away from each other, the first bracket being connected with one end of the same side of the second bracket and a distance between the first bracket and the second bracket gradually increasing in a direction from one end of the same side to the other end.

According to one embodiment of the utility model, the support further comprises a connecting rod, which is connected with the plurality of first supports and/or the second supports respectively, and on which a pulley adapted to cooperate with the track is arranged.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a block diagram of a vacuum enclosure assembly according to an embodiment of the utility model;

FIG. 2 is a bracket configuration of a vacuum chamber assembly according to an embodiment of the present utility model;

FIG. 3 is a top view of a vacuum chamber assembly according to an embodiment of the utility model;

fig. 4 is a mating view of a bracket and rail of a vacuum chamber assembly according to an embodiment of the utility model.

Reference numerals:

a vacuum chamber assembly 1;

a chamber 11 and a vacuum chamber 111;

a cabin door 12 and a connecting pipeline 13;

explosion-proof equipment 14, communicating pipe 141, rupture disk 142;

a detection pipeline 15 and a rail 16;

bracket 17, first bracket 171, second bracket 172, connecting rod 173, pulley 1731.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

A vacuum chamber assembly according to an embodiment of the present utility model is described below with reference to fig. 1-4.

The vacuum cabin assembly 1 according to the present utility model comprises a cabin body 11, a cabin door 12 and an air injection device, wherein a vacuum cavity 111 is formed in the cabin body 11; a hatch door 12 is movably provided to the hatch body 11 to selectively open or close the vacuum chamber 111; the gas injection device is arranged in the cabin 11, and at least part of the gas injection device extends into the vacuum cavity 111 and is suitable for pressurizing and/or depressurizing a gas cylinder to be detected carried in the vacuum cavity 111.

According to one embodiment of the present utility model, the vacuum chamber assembly 1 provides a required environmental space for the inspection process of the gas cylinder to be inspected by providing the chamber body 11 and forming the vacuum chamber 111 inside the chamber body 11. Meanwhile, a cabin door 12 is movably arranged at one side of the cabin body 11, and the movable arrangement of the cabin door 12 is convenient for opening or closing the vacuum cavity 111, and it can be understood that when the detection of the gas cylinder to be detected is required, the detection test is performed by opening the cabin door 12 and putting the gas cylinder to be detected into the cabin door 12 and then closing the cabin door 12. In addition, the vacuum chamber assembly 1 is further provided with an air injection device, at least part of the air injection device extends into the vacuum cavity 111 so as to be convenient for pressurizing and/or depressurizing the to-be-detected air cylinder borne by the vacuum cavity 111, and further detection of air tightness of the to-be-detected air cylinder is achieved. Specifically, after the to-be-detected gas cylinder is placed in the vacuum cavity 111, the vacuum cavity 111 is sealed through the cabin door 12, and the to-be-detected gas cylinder is pressurized through the gas injection device, in the pressurizing process, if the pressure of the vacuum cavity 111 is overlarge, the cabin door 12 can be opened so as to release the pressure of the vacuum cavity 111, so that the safety of the vacuum cavity 111 and the to-be-detected gas cylinder is ensured, and meanwhile, the gas injection device can also release the pressure of the to-be-detected gas cylinder after the to-be-detected gas cylinder is pressurized and detected, so that the safety of the to-be-detected gas cylinder is ensured. The arrangement of the vacuum chamber assembly 1 provides a safe detection environment for the gas cylinder to be detected, and meanwhile, the arrangement of the cabin door 12 improves the safety of the vacuum chamber assembly 1.

According to one embodiment of the present utility model, the gas injection apparatus includes a connection pipe 13, at least part of the connection pipe 13 extends into the vacuum chamber 111 and communicates with the gas cylinder to be inspected, and the connection pipe 13 is configured as a hard pipe. Because the gas injection device is used as a device for pressurizing and/or depressurizing the gas cylinder to be detected, the structure of the gas injection device can influence the pressurizing and/or depressurizing process of the gas cylinder to be detected. Specifically, the gas injection device is provided with a connecting pipeline 13 and extends at least part of the connecting pipeline 13 into the vacuum cavity 111 to be communicated with the gas cylinder to be detected, meanwhile, the connecting pipeline 13 is constructed as a hard pipeline, when the gas cylinder to be detected needs to be pressurized, the gas cylinder to be detected only needs to be pressurized through the connecting pipeline 13, and likewise, the pressure release of the gas cylinder to be detected can be realized through the communication between the connecting pipeline 13 and the gas cylinder to be detected. In addition, the connecting pipeline 13 is constructed as a hard pipe, so that the safety of the connecting pipeline 13 in the pressurizing and/or depressurizing process can be ensured, the risk of breakage of the connecting pipeline 13 is reduced, and the safety and reliability of the gas injection device are improved.

According to an embodiment of the utility model, the vacuum chamber assembly 1 further comprises an explosion protection device 14, the explosion protection device 14 being arranged on the chamber body 11, the explosion protection device 14 being adapted to communicate the vacuum chamber 111 with the outside after the pressure in the vacuum chamber 111 has reached a preset value. Since the vacuum chamber assembly 1 pressurizes the interior of the vacuum chamber when performing the test of the gas cylinder to be inspected, if the vacuum chamber 111 is depressurized by abutting against the cabin door 12, it is difficult to ensure the pressure relieving effect. Specifically, the vacuum chamber assembly 1 further includes an explosion-proof device 14 disposed on the chamber 11, where the explosion-proof device 14 is adapted to communicate the vacuum chamber 111 with the outside after the pressure in the vacuum chamber 111 reaches a preset value, and it is understood that when the pressure in the vacuum chamber 111 is too high, the explosion-proof device 14 may communicate the vacuum chamber 111 with the outside to realize pressure relief of the vacuum chamber 111, so as to ensure safety of the vacuum chamber 111. In some examples, the explosion protection device 14 may be used as a guarantee for the vacuum chamber assembly 1 when the interior of the vacuum chamber 111 is under high pressure and the door 12 is damaged and cannot be opened, so that the safety and reliability of the vacuum chamber assembly 1 are further improved.

According to an embodiment of the present utility model, the explosion-proof apparatus 14 includes a communicating tube 141 and a rupture disc 142, the communicating tube 141 being provided at an outer peripheral wall of the cabin 11 and one end of the communicating tube 141 being in communication with the vacuum chamber 111; the rupture disc 142 is disposed on the communicating tube 141 and seals the other end of the communicating tube 141, and the rupture disc 142 is adapted to communicate the communicating tube 141 with the outside after the pressure in the vacuum chamber 111 reaches a predetermined value. Since the explosion-proof device 14 is a guarantee of the pressure relief of the vacuum chamber 111, its construction method affects the pressure relief effect. Specifically, the explosion-proof device 14 is provided with the communicating pipe 141 and the rupture disc 142, the communicating pipe 141 is arranged on the outer peripheral wall of the cabin 11, one end of the communicating pipe 141 communicates the outer peripheral wall of the cabin 11 with the vacuum cavity 111, the rupture disc 142 is arranged on the other end of the communicating pipe 141 and seals the communicating pipe 141, when the pressure in the vacuum cavity 111 is too high or reaches a preset value, the rupture disc 142 can communicate the communicating pipe 141 with the outside, so that the vacuum cavity 111 is communicated with the outside, the pressure relief of the vacuum cavity 111 is realized, and the pressure relief effect of the explosion-proof device 14 is improved.

According to one embodiment of the present utility model, the vacuum chamber assembly 1 further comprises a vacuum degree detection device and a vacuum pump, the vacuum degree detection device being provided to the chamber body 11 and adapted to detect the vacuum degree in the vacuum chamber 111; the vacuum pump is communicated with the vacuum cavity 111 and is suitable for vacuumizing the vacuum cavity 111; wherein the vacuum degree detecting device and the vacuum pump are arranged at two ends of the cabin 11 in the extending direction. Because the vacuum chamber is a device for detecting the gas cylinder to be detected, the structure of the vacuum chamber can influence the detection effect of the gas cylinder to be detected. Specifically, the vacuum chamber assembly 1 is further provided with a vacuum degree detection device and a vacuum pump, the vacuum degree detection device is arranged on the chamber body 11 and is suitable for detecting the vacuum degree in the vacuum chamber 111, and the vacuum pump is communicated with the vacuum chamber 111 and is suitable for vacuumizing the vacuum chamber 111. When the gas cylinder to be detected is placed into the vacuum cavity 111, the cabin door 12 is closed, the vacuum pump can be used for vacuumizing the inside of the vacuum cavity 111, and meanwhile, the vacuum degree detection device can be used for detecting the vacuum degree in the vacuum cavity 111 in real time, so that other impurity gases are prevented from being present in the vacuum cavity 111, and the influence of the impurity gases on the detection result of the gas cylinder to be detected is avoided. In addition, the vacuum pump and the vacuum degree detection device are respectively arranged at two ends of the cabin 11 in the extending direction, and the vacuum degree detection accuracy in the vacuum cavity 111 can be ensured by arranging the vacuum pump and the vacuum degree detection device at intervals, so that the detection effect of the vacuum cabin assembly 1 on the gas cylinder to be detected is improved.

According to one embodiment of the utility model, a detection pipeline 15 is arranged between the air inlet of the vacuum pump and the cabin 11; the vacuum chamber assembly 1 further comprises a detection unit, which is in communication with the vacuum chamber 111 via a detection line 15 and is adapted to detect the concentration of the detection gas within the vacuum chamber 111. Since the vacuum chamber is a device for detecting the gas cylinder to be detected, the structure thereof affects the detection result of the gas cylinder to be detected. Specifically, be provided with the detection pipeline 15 between the air inlet of vacuum pump and the cabin body 11, the vacuum pump carries out the evacuation to vacuum cavity 111 through detecting pipeline 15 to ensure that there is not other impurity gas in the vacuum cavity 111, improved vacuum cabin subassembly 1 and to wait to examine the accuracy that the gas cylinder detected, in addition, vacuum cabin subassembly 1 has still set up monitoring unit, detecting unit communicates with vacuum cavity 111 through detecting pipeline 15 in order to detect the concentration of the detection gas in the vacuum cavity 111, judges the gas tightness of waiting to examine the gas cylinder according to the concentration of the detection gas that detects. The arrangement of the detection unit improves the accuracy of the detection of the vacuum chamber assembly 1.

According to one embodiment of the present utility model, the chamber 11 is constructed in a cylindrical shape, one end of the chamber 11 is formed with a hatch communicating with the vacuum chamber 111, the door 12 is hinge-coupled with the chamber 11 to selectively close the hatch, and the other end of the chamber 11 has a gradually decreasing cross-sectional area. Since the vacuum chamber 111 inside the chamber 11 needs to be pressurized, the pressure inside the vacuum chamber 111 acts on the chamber 11. Specifically, the cabin 11 is configured as a cylinder, one end of the cabin 11 is formed with a hatch communicating with the vacuum chamber 111, and at the same time, the door 12 is hinged with the cabin 11, so that the door 12 opens or closes the hatch. The cross section area of the other end of the cabin body 11 is gradually reduced, the structural strength of the cabin body 11 is improved due to the cylindrical design of the cabin body 11, the stability of the cabin body under the pressure action of the vacuum cavity 111 is ensured, and the safety and reliability of the vacuum cabin assembly 1 are improved.

According to one embodiment of the utility model, the vacuum chamber assembly 1 further comprises a rail 16 and a bracket 17, the rail 16 being arranged in the vacuum chamber 111 in the same direction as the chamber body 11; the support 17 is movably arranged on the rail 16, and a support groove suitable for supporting a gas cylinder to be detected is formed on the support 17. Since the gas cylinder to be inspected needs to be placed in the vacuum chamber 111, the configuration of the vacuum chamber assembly 1 may affect the stability of the gas cylinder to be inspected. Specifically, the vacuum chamber assembly 1 further includes a rail 16 in the vacuum chamber 111 in the same direction as the chamber 11 extends, a support 17 is movably disposed on the rail 16 as a member for supporting the gas cylinder to be detected, and a support groove adapted to support the gas cylinder to be detected is formed on the support 17, so that when the gas cylinder to be detected is detected, only the gas cylinder to be detected is required to be placed in the support groove, and then the gas cylinder to be detected is pushed into the vacuum chamber 111 through cooperation of the support 17 and the rail 16. The setting of support 17 and track 16 is when waiting to examine the gas cylinder and examine, for waiting to examine the placing of gas cylinder and provide convenience, simultaneously, the supporting groove can wait to examine the gas cylinder and carry out spacingly, has improved the stability of waiting to examine the gas cylinder in the detection messenger.

According to one embodiment of the utility model, the track 16 is configured as two parallel to each other and spaced apart; the bracket 17 includes a first bracket 171 and a second bracket 172, the first bracket 171 and the second bracket 172 being configured in an arc shape protruding toward and away from each other, the first bracket 171 being connected to one end of the same side of the second bracket 172 and a distance between the first bracket 171 and the second bracket 172 gradually increasing in a direction from one end of the same side to the other end. Since the rail 16 and the bracket 17 are structures for supporting the gas cylinder to be inspected, the construction of the two influences the stability of the gas cylinder to be inspected when placed. Specifically, the rails 16 are configured as two rails that are parallel to each other and disposed at a distance from each other, and the two parallel rails 16 can ensure stability of the rack 17 when transporting the cylinder to be inspected. The support 17 comprises a first support 171 and a second support 172, the first support 171 and the second support 172 are configured into an arc shape protruding towards and away from each other, at least part of the first support 171 and at least part of the second support 172 can be attached to at least part of the outer surface of the gas cylinder to be detected through the arc-shaped design, and stability of the support 17 for supporting the gas cylinder to be detected is improved. In addition, the first support 171 is connected with one end of the same side of the second support 172, and the distance between the first support 171 and the second support 172 gradually increases in the direction from one end of the same side to the other end, which can be understood that the corresponding first support 171 and second support 172 are connected with each other at one end of the same side, and the other ends of the same side form an open mouth, which can facilitate the placement of the gas cylinder to be inspected, and meanwhile, the design can enable the support 17 to adapt to the gas cylinders to be inspected with different sizes, so that the universality of the vacuum chamber assembly 1 is improved.

According to one embodiment of the utility model, the vacuum chamber assembly 1 further comprises a connecting rod 173, the connecting rod 173 being connected to the plurality of first brackets 171 and/or the second brackets 172, respectively, the connecting rod 173 being provided with pulleys 1731 adapted to cooperate with the rails 16. Since the process of placing the gas cylinder to be inspected into the vacuum chamber 111 is realized by the cooperation of the bracket 17 and the rail 16, the configuration of the cooperation of the bracket and the rail can influence the stability of the process of placing the gas cylinder to be inspected. Specifically, the support 17 further includes a connecting rod 173, the connecting rod 173 is connected with a plurality of first supports 171 and/or second supports 172 respectively, simultaneously, be provided with on the connecting rod 173 be suitable for with track 16 complex pulley 1731, after the gas cylinder that waits to examine is placed in the supporting tank, the connecting rod 173 makes support 17 and track 16 relative slip through pulley 1731 and track 16's cooperation, and then makes the gas cylinder that waits to examine be transported to vacuum chamber 111, the setting of connecting rod 173 has strengthened the stability of the in-process that the gas cylinder that waits to examine placed in vacuum chamber 111, simultaneously, the degree of difficulty of this process has been reduced, make the transport of waiting to examine the gas cylinder more swiftly.

In some embodiments of the present utility model, the vacuum chamber assembly 1 is further provided with an air exchange port, a nitrogen gas replacement port, a thermometer port, and other devices, so that the air concentration, the nitrogen gas concentration, the temperature, and the like in the vacuum chamber 111 can be detected, so as to ensure the accuracy of the detection result of the to-be-detected gas cylinder by the vacuum chamber 111 assembly. Secondly, the inner surface of the vacuum cavity 111 is subjected to mirror polishing, so that the adsorption of helium molecules by the cabin 11 can be reduced, and the accuracy of the detection result of the to-be-detected gas cylinder by the vacuum cavity 111 component is further improved.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the description of the utility model, a "first feature" or "second feature" may include one or more of such features.

In the description of the present utility model, "plurality" means two or more.

In the description of the utility model, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by another feature therebetween.

In the description of the utility model, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A vacuum chamber assembly, comprising:

the device comprises a cabin body (11), wherein a vacuum cavity (111) is formed in the cabin body (11);

-a hatch (12), said hatch (12) being movably arranged to said hatch body (11) for selectively opening or closing said vacuum chamber (111);

the gas injection device is arranged on the cabin body (11), and at least part of the gas injection device extends into the vacuum cavity (111) and is suitable for pressurizing and/or depressurizing a gas cylinder to be detected carried in the vacuum cavity (111).

2. Vacuum chamber assembly (1) according to claim 1, characterized in that the gas injection means comprise: and a connecting pipeline (13), wherein at least part of the connecting pipeline (13) extends into the vacuum cavity (111) and is communicated with the gas cylinder to be detected, and the connecting pipeline (13) is constructed as a hard pipeline.

3. Vacuum chamber assembly (1) according to claim 1, further comprising: the explosion-proof device (14), explosion-proof device (14) set up in on the cabin body (11), explosion-proof device (14) are suitable for after the pressure in vacuum cavity (111) reaches the default, with vacuum cavity (111) and outside intercommunication.

4. A vacuum chamber assembly (1) according to claim 3, wherein the explosion protection means (14) comprises:

a communication pipe (141), wherein the communication pipe (141) is arranged on the outer peripheral wall of the cabin (11), and one end of the communication pipe (141) is communicated with the vacuum cavity (111);

the rupture disk (142), the rupture disk (142) set up in communicating pipe (141) and seal the other end of communicating pipe (141), rupture disk (142) are suitable for after the pressure in vacuum cavity (111) reaches the default, with communicating pipe (141) and outside switch on.

5. Vacuum chamber assembly (1) according to claim 1, further comprising:

the vacuum degree detection device is arranged on the cabin body (11) and is suitable for detecting the vacuum degree in the vacuum cavity (111);

a vacuum pump in communication with the vacuum chamber (111) and adapted to evacuate the vacuum chamber (111); wherein the method comprises the steps of

The vacuum degree detection device and the vacuum pump are arranged at two ends of the cabin body (11) in the extending direction.

6. Vacuum chamber assembly (1) according to claim 5, characterized in that a detection line (15) is provided between the inlet of the vacuum pump and the chamber (11); the vacuum chamber assembly (1) further comprises:

and the detection unit is communicated with the vacuum cavity (111) through the detection pipeline (15) and is suitable for detecting the concentration of detection gas in the vacuum cavity (111).

7. Vacuum chamber assembly (1) according to claim 5, characterized in that the chamber body (11) is configured as a cylinder, one end of the chamber body (11) is formed with a hatch opening communicating with a vacuum chamber (111), the hatch door (12) is hinged with the chamber body (11) to selectively close the hatch opening, and the cross-sectional area of the other end of the chamber body (11) is gradually reduced.

8. Vacuum chamber assembly (1) according to claim 7, further comprising:

a rail (16), wherein the rail (16) is arranged in the vacuum cavity (111) and has the same extending direction as the cabin (11);

the support (17) is movably arranged on the track (16), and a support groove suitable for supporting a gas cylinder to be detected is formed in the support (17).

9. Vacuum chamber assembly (1) according to claim 8, characterized in that the rail (16) is configured as two parallel to each other and arranged at a distance from each other;

the bracket (17) comprises:

a first bracket (171) and a second bracket (172), the first bracket (171) and the second bracket (172) are configured into an arc shape protruding away from each other, the first bracket (171) is connected with one end of the same side of the second bracket (172), and the distance between the first bracket (171) and the second bracket (172) gradually increases in the direction from one end of the same side to the other end.

10. Vacuum chamber assembly (1) according to claim 9, wherein the bracket (17) further comprises: the connecting rod (173), the connecting rod (173) respectively with a plurality of first support (171) and/or second support (172) are connected, be provided with on connecting rod (173) be suitable for with pulley (1731) of track (16) cooperation.