Air tightness detection method, air tightness detection structure and equipment

Abstract

The invention provides an air tightness detection method, an air tightness detection structure and equipment, and the method comprises the steps: placing a to-be-detected signal amplifier in a first detection cavity of the air tightness detection equipment, and enabling the connection part of a housing and an external fixing part to be located in a second detection cavity; starting the air tightness detection structure to integrally seal the interior of the air tightness detection structure; meanwhile, the signal amplifier to be detected is pushed in the air tightness detection structure, so that a signal antenna mounting hole in the shell is sealed. High-pressure gas is injected into the first detection cavity and the second detection cavity, and meanwhile, airtightness detection is performed on the whole to-be-detected signal amplifier and the joint of the shell and the external fixing piece, so that an airtightness detector in the airtightness detection structure is used for detecting the airtightness of the whole to-be-detected signal amplifier; according to the invention, airtightness detection is carried out on the joint of the housing of the to-be-detected signal amplifier and the external fixing member, so that the overall and local airtightness of the to-be-detected signal amplifier can be detected at the same time, and the detection result is more accurate.

Description

Technical Field

[0001] The present application relates to the field of airtightness detection, and particularly to an airtightness detection method, an airtightness detection structure and a device. Background Art

[0002] In order to achieve a wide signal coverage, a signal amplifier is installed outdoors to expand the signal coverage. However, during the production of the signal amplifier, internal components and the housing need to be assembled together. After the assembly, a sealant is used to block the mounting holes of the signal antenna on the housing (hereinafter referred to as the assembled component after the first blockage), and then an airtightness test is carried out to ensure that it will not be damaged due to airtightness problems when used outdoors.

[0003] The traditional airtightness detection method is to place the assembled component after the first blockage in a water-filled test tank, and then observe whether there are bubbles on the surface of the assembled component after the first blockage or bubbles rising, so as to observe the surrounding state of the assembled component after the first blockage in the water to determine whether there is an airtightness problem and detect the overall airtightness of the assembled component after the first blockage.

[0004] This method often requires human eye observation, and the judgment criteria and results will vary due to different human standards, resulting in inaccurate airtightness results. At the same time, during the airtightness detection using full water, water has surface tension. In environments with different depths, the water pressure on the assembled component after the first blockage is different. If there are tiny air holes, under the action of water surface tension, water may not necessarily enter the housing interior, and the gas inside the housing may not necessarily directly appear as bubbles in the water. Especially when the housing material is plastic or coated metal, etc., the material itself has hydrophobicity, which will further expand this part of the error.

[0005] At the same time, since the signal amplifier needs to be installed outdoors, after the airtightness detection, an external fixing bracket needs to be installed on the back of the housing through fixing parts such as screws. With further assembly, if the number of turns of tightening the screws and other fixing parts during the assembly process is too many, it may pierce or cause cracks at the connection due to extrusion, thus affecting the airtightness of this part. If the airtightness detection step is placed after the assembly of the external fixing bracket, water will directly contact this part of the screws and the external fixing bracket. Once the water enters the housing along the damaged crack, the entire signal amplifier will be flooded and scrapped, making the signal amplifier unusable.

[0006] Another airtightness detection method is to use an airtightness detection device to seal the assembled component (including the housing, internal electronic components, and external fixing bracket) after installing the external fixing bracket, so as to seal the mounting hole of the signal antenna on the housing with a seal to form an assembled component after the second sealing. Then, the entire assembled component after the second sealing is placed in the airtightness detection device, and the airtightness of the entire assembled component after the second sealing is detected. By introducing high-pressure gas, it is judged whether there is an airtightness problem according to the airtightness detector. However, after the detection, it is impossible to know whether it is an overall airtightness problem or there is an airtightness problem at the connection between the housing and the external fixing bracket. Therefore, it is impossible to further judge the location of the airtightness fault according to the airtightness detection result, and it is impossible to further block and repair the airtightness problem area subsequently. Only the entire housing and the external fixing bracket can be replaced again, and then the airtightness detection is carried out again.

[0007] During the detection process by using the airtightness detection device, another method is to use a push cylinder set externally to push the assembled component after installing the external fixing bracket and then perform sealing, that is, use a side pressure module and a downward pressure module to seal the assembled component after installing the external fixing bracket to ensure the sealing performance. Then, the airtightness of the entire assembled component after the external fixing bracket is detected. Since the cylinder of the side pressure module requires a large movement space and installation space, the entire sealing mechanism is very large. At the same time, it is easy to interfere with other components, and it is easy to cause errors in the sealing performance detection result.

[0008] Secondly, when the cylinder of the side pressure module moves along the main axis direction, due to the action of gas pressure, it will rotate slightly, making the connected main axis prone to rotate slightly along its axis. The push block is fixedly connected to the main axis, and the rotating main axis will drive the push block to rotate together, thereby causing the push block to displace, resulting in the inability of the push block to perform effective sealing, and making the sealing performance detection result have a large error. Summary of the Invention

[0009] In view of this, it is necessary to provide an airtightness detection method, an airtightness detection structure and a device to solve the above problems.

[0010] An embodiment of the present application provides an airtightness detection method, including:

[0011] Placing the signal amplifier to be detected in the first detection cavity of the airtightness detection device, so that the connection between the housing and the external fixing member is located in the second detection cavity;

[0012] Starting the airtightness detection structure to perform overall sealing on the inside of the airtightness detection structure; at the same time, pushing the signal amplifier to be detected inside the airtightness detection structure to seal the mounting hole of the signal antenna on the housing;

[0013] High-pressure gas is injected to fill the first detection cavity and the second detection cavity, so as to simultaneously perform airtightness detection on the entirety of the signal amplifier to be detected and the connection between the shell and the external fixing member.

[0014] An airtightness detection structure, applied to the airtightness detection method described above, comprising:

[0015] Driving parts;

[0016] A first housing, one side of which is fixedly connected to the driving member;

[0017] A first wedge block is arranged on a side of the first housing away from the driving member;

[0018] A second housing component, a first detection cavity and a second detection cavity are provided on one side close to the first housing, the first detection cavity is connected with the second detection cavity, and a communication channel is provided on the second housing component, one end of the communication channel is connected with the first detection cavity, and the other end is connected with the second detection cavity;

[0019] A second wedge block is provided on a side of the second shell close to the first shell;

[0020] A blocking member, provided on the second wedge block;

[0021] Among them, the driving member drives the first shell to approach the second shell assembly along the first direction, so that the first wedge block pushes the second wedge block to move perpendicular to the first direction, so as to block the signal antenna mounting hole on the shell of the signal amplifier to be detected on the first detection cavity, and the airtightness detection member performs airtightness detection on different areas of the signal amplifier to be detected in the first detection cavity and the second detection cavity, and the first direction is the vertical direction from the first shell to the second shell.

[0022] In at least one embodiment of the present application, a first inclined surface is provided on a side of the first wedge block close to the second wedge block;

[0023] A second inclined surface is provided on a side of the second wedge block close to the first wedge block, and a mounting surface is provided on the second wedge block. The mounting surface is arranged away from the second inclined surface, and the blocking member is mounted on the mounting surface.

[0024] Among them, the first wedge block moves along the first direction to make the first inclined surface approach the second inclined surface. When the first inclined surface abuts against the second inclined surface, a force is generated on the second inclined surface along the second direction to push the second wedge block to approach the signal amplifier to be detected, so that the blocking member blocks the signal antenna mounting hole on the housing of the signal amplifier to be detected, and the second direction is set perpendicular to the first direction.

[0025] In at least one embodiment of the present application, a receiving groove is formed on the mounting surface, the second wedge block is provided with a positioning protrusion, the positioning protrusion is disposed at the geometric center position of the receiving groove, the plugging member is disposed in the receiving groove, and the plugging member is arranged around the positioning protrusion.

[0026] In at least one embodiment of the present application, the second housing assembly is provided with a sliding groove communicating with the first detection cavity;

[0027] The second wedge block is slidably connected to the second housing assembly through the sliding groove.

[0028] In at least one embodiment of the present application, the airtightness detection structure further includes:

[0029] A first magnetic member, disposed on a side of the second wedge block away from the first wedge block;

[0030] A second magnetic member, disposed in the sliding groove and magnetically coupled with the first magnetic member, and the first magnetic member and the second magnetic member attract each other.

[0031] In at least one embodiment of the present application, the second housing assembly includes:

[0032] A main housing, provided with an installation cavity and an air inlet hole communicating with the installation cavity, and the installation cavity is opened on a side close to the first housing;

[0033] A positioning housing, installed in the installation cavity, the positioning housing has a first end face, a second end face and a side face, the first end face and the second end face face away from each other, the side face extends from the first end face to the second end face, the first detection cavity is opened on the first end face, the second detection cavity is opened on the second end face, one end of the communication channel is opened on the side face and communicates with the first detection cavity, and the other end extends to the second end face and communicates with the second detection cavity, and the sliding groove is opened on the positioning housing, and the sliding groove communicates with the air inlet hole.

[0034] In at least one embodiment of the present application, a sealing groove is formed on a side of the main housing close to the first housing, and the sealing groove is arranged around the positioning housing;

[0035] The airtightness detection structure further includes:

[0036] A sealing ring, disposed in the sealing groove and arranged around the positioning housing.

[0037] In at least one embodiment of the present application, a positioning post is provided on one side of the first housing close to the second housing assembly, a positioning hole is formed on one side of the main housing close to the first housing, and the positioning post corresponds to the positioning hole.

[0038] An airtightness detection device includes the airtightness detection structure as described in any one of the above, and the airtightness detection device further includes:

[0039] A frame body, which forms a receiving position, and the airtightness detection structure is arranged on the receiving position;

[0040] An air pump, which is arranged on the frame body and is communicated with the airtightness detection structure.

[0041] Implementing the airtightness detection method, airtightness detection structure and device of this embodiment will at least have the following beneficial effects:

[0042] 1. For the airtightness detection method, airtightness detection structure and device provided above, the signal amplifier to be detected is placed in the first detection cavity of the airtightness detection device, so that the connection between the housing and the external fixing member is located in the second detection cavity.

[0043] Start the airtightness detection structure to integrally seal the inside of the airtightness detection structure; at the same time, push the signal amplifier to be detected inside the airtightness detection structure to seal the signal antenna mounting hole on the housing.

[0044] Inject high-pressure gas to fill the first detection cavity and the second detection cavity, so as to simultaneously detect the airtightness of the whole signal amplifier to be detected and the connection between the housing of the signal amplifier to be detected and the external fixing member, so that the airtightness detector inside the airtightness detection structure detects the whole signal amplifier to be detected, and detects the airtightness of the connection between the housing of the signal amplifier to be detected and the external fixing member, so as to simultaneously detect the airtightness of the whole signal amplifier to be detected and the airtightness of the connection between the housing of the signal amplifier to be detected and the external fixing member, so as to obtain an accurate airtightness detection result.

[0045] 2. For the airtightness detection method, airtightness detection structure and device provided above, since the first wedge block abuts against the second wedge block to abut against the signal antenna mounting hole of the housing of the signal amplifier to be detected, thereby blocking the antenna mounting hole, the volume of the whole airtightness detection structure is smaller. One driving member can be used to complete the blocking and sealing, without using an external side-pushing structure for blocking, avoiding the problem that the main shaft rotates and generates displacement due to the external driving structure driving through the main shaft, which may lead to inability to seal.

[0046] 3. The above-provided airtightness detection method, airtightness detection structure, and equipment avoid the interference between multiple components caused by external installation in the prior art because the first wedge block and the second wedge block are respectively installed on the first housing and the second housing assembly, making the overall movement of the airtightness detection structure smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 It is a flowchart of the airtightness detection method in the present invention;

[0048] Figure 2 It is a structural diagram of the airtightness detection equipment in the present invention;

[0049] Figure 3 It is Figure 2 an exploded view of the airtightness detection equipment in

[0050] Figure 4 It is Figure 3 an exploded view of a partial structure of the airtightness detection structure in

[0051] Figure 5 It is Figure 4 an exploded view of a partial structure in

[0052] Figure 6 It is Figure 4 a structural diagram of the positioning housing in

[0053] Figure 7 It is Figure 6 a structural diagram of the positioning housing from another angle in

[0054] Figure 8 It is Figure 4 an assembly diagram of the first housing and the first wedge block in

[0055] Figure 9 It is Figure 4 a structural diagram of the main housing in

[0056] Figure 10 It is Figure 5 a structural diagram of the second wedge block in

[0057] Figure 11 a cross-sectional view of the airtightness detection structure;

[0058] Figure 12 It is Figure 11 a partially enlarged view at C in

[0059] Figure 13 It is Figure 11 a partially enlarged view at D in

[0060] Figure 14 a schematic diagram of the airtightness detection of the airtightness detection equipment.

[0061] Description of Main Component Symbols

[0062] 100, airtightness detection structure;

[0063] 110, driving member;

[0064] 120, first housing; 121, positioning post;

[0065] 130, first wedge; 130a, first inclined surface;

[0066] 140, second housing assembly; 140a, first detection cavity; 140b, second detection cavity; 140c, communication channel; 140d, sliding groove; 141, main housing; 141a, installation cavity; 141b, air inlet hole; 141c, sealing groove; 141d, positioning hole; 142, positioning housing; 142a, first end face; 142b, second end face; 142c, side face;

[0067] 150, second wedge; 150a, second inclined surface; 150b, installation surface; 150c, accommodation groove; 151, positioning bump;

[0068] 160, plugging member;

[0069] 170, first magnetic member; 171, second magnetic member;

[0070] 180, sealing ring;

[0071] 190, airtightness detection device; 191, frame; 191a, accommodation position; 192, air pump;

[0072] A, first direction; B, second direction;

[0073] 200, signal amplifier to be detected;

[0074] 210, connection between the housing and the external fixing member. Detailed Implementation Manner

[0075] Next, the embodiments of the present application will be described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0076] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component present at the same time. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component present at the same time. The terms "top", "bottom", "upper", "lower", "left", "right", "front", "rear", and similar expressions used in this article are only for the purpose of illustration.

[0077] The following will, with reference to the accompanying drawings, elaborate on some embodiments of the present application. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0078] An embodiment of the present application provides an airtightness detection method, including:

[0079] S100: Place the signal amplifier 200 to be detected in the first detection cavity 140a of the airtightness detection device 190, such that the connection point 210 between the housing and the external fixing member is located in the second detection cavity 140b;

[0080] S110: Start the airtightness detection structure 100 to perform overall sealing on the inside of the airtightness detection structure 100; at the same time, push the signal amplifier 200 to be detected inside the airtightness detection structure 100 to seal the signal antenna mounting holes on the housing;

[0081] S120: Inject high-pressure gas to fill the first detection cavity 140a and the second detection cavity 140b, so as to perform airtightness detection on the entire signal amplifier 200 to be detected and the connection point 210 between the housing and the external fixing member at the same time.

[0082] Please refer to Figure 1 , in this embodiment, the signal amplifier 200 to be detected is placed in the first detection cavity 140a of the airtightness detection device 190, such that the connection point 210 between the housing and the external fixing member is located in the second detection cavity 140b.

[0083] Start the airtightness detection structure 100 to perform overall sealing on the inside of the airtightness detection structure 100; at the same time, push the signal amplifier 200 to be detected inside the airtightness detection structure 100 to seal the signal antenna mounting holes on the housing.

[0084] Inject high-pressure gas to fill the first detection cavity 140a and the second detection cavity 140b, so as to simultaneously perform airtightness detection on the entire signal amplifier 200 to be detected and the connection 210 between the housing and the external fixing member, enabling the airtightness detector inside the airtightness detection structure 100 to perform airtightness detection on the entire signal amplifier 200 to be detected and the connection 210 between the housing of the signal amplifier 200 to be detected and the external fixing member, so as to simultaneously detect the airtightness of the entire signal amplifier 200 to be detected and the airtightness of the connection 210 between the housing of the signal amplifier 200 to be detected and the external fixing member, in order to obtain accurate airtightness detection results.

[0085] It should be noted that by respectively arranging airtightness detectors in the first detection cavity 140a and the second detection cavity 140b, the airtightness in the first detection cavity 140a and the second detection cavity 140b is respectively detected by the two airtightness detectors, and the airtightness in these two cavities is detected by existing methods such as the pressure decay method, differential pressure method or flow method, so as to determine the airtightness data of the entire signal amplifier 200 to be detected and the connection 210 between the housing and the external fixing member through these two airtightness detectors, thereby judging whether there are airtightness problems in the entire and local parts of the signal amplifier 200 to be detected.

[0086] An airtightness detection structure 100, applied to the airtightness detection method as described above, includes:

[0087] A driving member 110;

[0088] A first housing 120, fixedly connected to the driving member 110 on one side;

[0089] A first wedge block 130, arranged on the side of the first housing 120 away from the driving member 110;

[0090] A second housing assembly 140, having a first detection cavity 140a and a second detection cavity 140b opened on the side close to the first housing 120. The first detection cavity 140a communicates with the second detection cavity 140b. A communication channel 140c is opened on the second housing assembly 140. One end of the communication channel 140c communicates with the first detection cavity 140a, and the other end communicates with the second detection cavity 140b;

[0091] A second wedge block 150, arranged on the side of the second housing close to the first housing 120;

[0092] A blocking member 160, arranged on the second wedge block 150;

[0093] Among them, the driving member 110 drives the first housing 120 to approach the second housing assembly 140 along the first direction A, so that the first wedge 130 pushes the second wedge 150 to move perpendicular to the first direction A, so as to block the signal antenna mounting hole on the housing of the signal amplifier 200 to be detected in the first detection cavity 140a. The airtightness detection member performs airtightness detection on different regions of the signal amplifier 200 to be detected in the first detection cavity 140a and the second detection cavity 140b. The first direction A is the vertical direction from the first housing 120 to the second housing.

[0094] It should be noted that the driving member 110 is a telescopic cylinder, a hydraulic cylinder, etc. In this embodiment, a hydraulic cylinder is adopted. The first housing 120 is generally a rectangular housing, and a recessed space is formed on the side of the first housing 120 close to the second housing assembly 140; the driving member 110 is fixedly connected to the side of the first housing 120 away from the second housing assembly 140 through fixing members such as screws and bolts. The first wedge 130 is generally triangular in shape, and is a right-angled triangular block in this embodiment, and can be a right-angled trapezoidal shape in other embodiments, and the first wedge 130 is fixedly connected to the first housing 120 through fixing members such as screws and bolts. The second wedge 150 has the same shape as the first wedge 130, and the installation directions of the first wedge 130 and the second wedge 150 are opposite. The hypotenuse of the first wedge 130 is arranged opposite to the hypotenuse (i.e., the inclined surface) of the second wedge 150. The second wedge 150 is installed on the positioning housing 142 through fixing members such as screws and bolts. The first detection cavity 140a is a cavity formed by the positioning housing 142 recessing inward on the side close to the first housing 120; the second detection cavity 140b is a cavity formed by the positioning housing 142 recessing inward on the side away from the first housing 120 and penetrating through, and the second detection cavity 140b communicates with the first detection cavity 140a. The blocking member 160 is a flexible sealing gasket and is in an annular state. The blocking member 160 is made of flexible rubber and silicone materials. The second housing assembly 140 is composed of a main housing 141 and a positioning housing 142. The main housing 141 is generally rectangular in shape. The installation cavity 141a is a rectangular space formed by the main housing 141 recessing inward on the side close to the first housing 120, and the size of the main housing 141 is the same as that of the first housing 120. The positioning housing 142 is generally a rectangular housing. The positioning housing 142 is installed in the installation cavity 141a, and the outer contour of the positioning housing 142 is substantially the same as that of the installation cavity 141a.

[0095] The first direction A is arranged in the vertical direction, and the second direction B is perpendicular to the first direction A. The second direction B is the horizontal direction and is perpendicular to the first direction A.

[0096] Please refer to Figures 2 - 13, in this embodiment, driven by the driving member 110, the first housing 120 moves in the first direction A towards the direction close to the second housing assembly 140. During the movement of the first housing 120, since the first wedge 130 is installed on the first housing 120, the first wedge 130 moves together in the first direction A.

[0097] When the first wedge 130 abuts against the second wedge 150, the driving member 110 continues to drive the first housing 120 in the first direction A towards the direction close to the second housing assembly 140, and the first wedge 130 continues to move, thereby generating a force on the second wedge 150 in the first direction A. Under the action of the first wedge 130, the second wedge 150 moves in the second direction B, and abuts the sealing member 160 against the signal antenna mounting hole of the housing of the signal amplifier 200 to be detected, thereby blocking the antenna mounting hole to complete the sealing of the entire signal amplifier 200 to be detected.

[0098] Meanwhile, when the sealing member 160 blocks the antenna mounting hole, the first housing 120 abuts against the second housing, so that the first housing 120 and the second housing are covered to seal the first detection cavity 140a and the second detection cavity 140b, isolating the space between the first housing 120 and the second housing from the outside to ensure the sealing performance.

[0099] High-pressure gas is introduced into the first detection cavity 140a through the air pump 192. Part of the high-pressure gas enters the first detection cavity 140a, and the other part enters the second detection cavity 140b through the communication channel 140c. Through the airtightness detector installed in the first detection cavity 140a and the airtightness detector installed in the second detection cavity 140b, the airtightness data of the entire signal amplifier 200 to be detected and the connection part 210 between the housing and the external fixing member can be detected, so as to judge whether there are airtightness problems in the whole and local parts of the signal amplifier 200 to be detected.

[0100] The airtightness of the whole and local parts of the signal amplifier 200 to be detected is detected simultaneously to improve the detection efficiency. Secondly, by detecting the airtightness of the whole and local parts of the signal amplifier 200 to be detected, the accurate position of the airtightness fault can be accurately judged to facilitate subsequent maintenance and treatment.

[0101] Since the first wedge 130 abuts against the second wedge 150 to abut against the signal antenna mounting hole of the housing of the signal amplifier 200 to be detected, thereby blocking the antenna mounting hole, the overall airtightness detection structure 100 is smaller in volume. With one driving member 110, the blocking and sealing can be completed, and there is no need to block through an external side-pushing structure, avoiding the problem that the main shaft rotates and generates displacement due to the driving of the external driving structure through the main shaft, resulting in inability to seal.

[0102] Secondly, the first wedge block 130 and the second wedge block 150 are respectively installed on the first shell 120 and the second shell assembly 140, so that the sealing between the first shell 120 and the second shell is better.

[0103] Since the first wedge block 130 and the second wedge block 150 are respectively installed on the first shell 120 and the second shell assembly 140, the interference between multiple components caused by installing them outside in the prior art is avoided, making the overall movement of the airtightness detection structure 100 smoother.

[0104] In at least one embodiment of the present application, a first inclined surface 130a is provided on a side of the first wedge block 130 close to the second wedge block 150;

[0105] The second wedge block 150 is provided with a second inclined surface 150a on one side close to the first wedge block 130, and the second wedge block 150 is provided with a mounting surface 150b, the mounting surface 150b is arranged away from the second inclined surface 150a, and the blocking member 160 is mounted on the mounting surface 150b;

[0106] The first wedge block 130 moves along the first direction A to make the first inclined surface 130a approach the second inclined surface 150a. When the first inclined surface 130a abuts against the second inclined surface 150a, a force is generated on the second inclined surface 150a along the second direction B to push the second wedge block 150 to approach the signal amplifier 200 to be detected, so that the blocking member 160 blocks the signal antenna mounting hole on the shell of the signal amplifier 200 to be detected. The second direction B is set perpendicular to the first direction A.

[0107] It should be noted that the first inclined surface 130 a is a surface on the inclined side of the first wedge block 130 . The second inclined surface 150 a is a surface on the inclined side of the second wedge block 150 .

[0108] Please refer to Figures 2 - 13 In the present embodiment, when the first wedge block 130 abuts against the second wedge block 150, the first wedge block 130 continues to move along the first direction A, and the first inclined surface 130a applies a force along the first direction A to the second inclined surface 150a. On the second inclined surface 150a, the component of the force along the second direction B pushes the second wedge block 150 to move in the second shell assembly 140, squeezing the blocking member 160 along the second direction B, so that the blocking member 160 blocks the signal antenna mounting hole on the shell of the detection signal amplifier 200.

[0109] When the plugging member 160 abuts against the structure at the signal antenna mounting hole on the housing of the signal amplifier 200 to be detected, a sealed state is formed at the connection between the housing of the signal amplifier 200 to be detected and the second wedge block 150, thereby avoiding affecting the airtightness detection result due to the gap between the housing of the signal amplifier 200 to be detected and the second wedge block 150.

[0110] The plugging member 160 is fixed to the mounting surface 150b by adhesion. The mounting surface 150b is a vertical plane, and the second inclined surface 150a is inclined with respect to the mounting surface 150b.

[0111] In at least one embodiment of the present application, a receiving groove 150c is formed on the mounting surface 150b. The second wedge block 150 is provided with a positioning convex block 151. The positioning convex block 151 is disposed at the geometric center of the receiving groove 150c. The plugging member 160 is disposed in the receiving groove 150c, and the plugging member 160 is disposed around the positioning convex block 151.

[0112] It should be noted that the receiving groove 150c is an annular groove, and the positioning convex block 151 is generally a cylindrical protrusion.

[0113] Please refer to Figures 2 - 13 , in this embodiment, when the first wedge block 130 abuts against the second wedge block 150 to push the second wedge block 150 to move along the second direction B, the second wedge block 150 abuts against the structure at the signal antenna mounting hole on the housing of the signal amplifier 200 to be detected through the plugging member 160. During the abutting process, the plugging member 160 deforms to fill the structure at the signal antenna mounting hole on the housing of the signal amplifier 200 to be detected and the positioning convex block 151, so as to seal the structure at the signal antenna mounting hole on the housing of the signal amplifier 200 to be detected, ensure the airtightness here, make the sealing effect better, and avoid the problem of inaccurate detection results due to the gap here.

[0114] In at least one embodiment of the present application, the second housing assembly 140 is provided with a sliding groove 140d communicating with the first detection cavity 140a;

[0115] The second wedge block 150 is slidably connected to the second housing assembly 140 through the sliding groove 140d.

[0116] It should be noted that the sliding groove 140d is arranged along the second direction B and is a rectangular groove.

[0117] Please refer to Figures 2 - 13, in this embodiment, when the first wedge 130 abuts against the second wedge 150, during the process that the driving member 110 drives the first housing 120 to approach the second housing along the first direction A, the first wedge 130 applies a force along the first direction A to the second wedge 150 along the first direction A. Under the action of the force, the component force of the force pushes the second wedge 150 to move in the sliding groove 140d along the second direction B, so that the sealing member 160 seals the signal antenna mounting hole on the housing of the signal amplifier 200 to be detected, so as to seal the connection between the structure at the signal antenna mounting hole on the housing of the signal amplifier 200 to be detected and the second wedge 150.

[0118] Due to the guiding of the sliding groove 140d, the second wedge 150 can accurately abut against the structure at the signal antenna mounting hole on the housing of the signal amplifier 200 to be detected along the second direction B, avoiding the problem that the structure at the signal antenna mounting hole on the housing of the signal amplifier 200 to be detected cannot be sealed due to movement displacement.

[0119] In at least one embodiment of the present application, the airtightness detection structure 100 further includes:

[0120] A first magnetic member 170, provided on a side of the second wedge 150 away from the first wedge 130;

[0121] A second magnetic member 171, provided in the sliding groove 140d and magnetically coupled with the first magnetic member 170, and the first magnetic member 170 and the second magnetic member 171 attract each other.

[0122] It should be noted that both the first magnetic member 170 and the second magnetic member 171 are magnets. When the first wedge 130 does not abut against the second wedge 150, the first magnetic member 170 and the second magnetic member 171 are attracted, and both the first magnetic member 170 and the second magnetic member 171 are located on a side away from the mounting surface 150b, while the first detection cavity 140a is located on a side close to the mounting surface 150b, so that the second wedge 150 can return to its original position when it does not abut against the signal amplifier 200 to be detected.

[0123] Please refer to Figures 2 - 13, in this embodiment, after the airtightness detection is completed, the driving member 110 drives the first housing 120 to move away from the second housing assembly 140 in the first direction A. Since both the first magnetic member 170 and the second magnetic member 171 are magnets, when the second wedge 150 abuts against the structure at the signal antenna mounting hole on the housing of the signal amplifier 200 to be detected, the second magnetic member 171 has a displacement. When there is no abutting force of the first wedge 130 on the second wedge 150, under the magnetic force of the first magnetic member 170, the second magnetic member 171 will be attracted, causing the second wedge 150 to move within the sliding groove 140d and then return to its original position to release the signal amplifier 200 to be detected, facilitating the next airtightness detection.

[0124] It is not necessary to manually move the second wedge 150 to the original position to release the signal amplifier 200 to be detected.

[0125] In at least one embodiment of the present application, the second housing assembly 140 includes:

[0126] A main housing 141, which is provided with an installation cavity 141a and an air inlet hole 141b communicating with the installation cavity 141a, and the installation cavity 141a is opened on one side close to the first housing 120;

[0127] A positioning housing 142, which is installed in the installation cavity 141a. The positioning housing 142 has a first end face 142a, a second end face 142b and a side face 142c. The first end face 142a and the second end face 142b face away from each other. The side face 142c extends from the first end face 142a to the second end face 142b. The first detection cavity 140a is opened on the first end face 142a, the second detection cavity 140b is opened on the second end face 142b, one end of the communication channel 140c is opened on the side face 142c and communicates with the first detection cavity 140a, and the other end extends to the second end face 142b and communicates with the second detection cavity 140b. A sliding groove 140d is opened on the positioning housing 142, and the sliding groove 140d communicates with the air inlet hole 141b.

[0128] Please refer to Figures 2 - 13, in this embodiment, after the first housing 120 is covered and sealed with the main housing 141, high-pressure gas is injected into the air inlet hole 141b through the air pump 192. A part of the high-pressure gas will enter the first detection chamber 140a through the sliding groove 140d, and another part of the high-pressure gas will enter the second detection chamber 140b through the communication channel 140c. A part of the signal amplifier 200 to be detected is accommodated in the first detection chamber 140a, and another part (the structure of the housing of the signal amplifier 200 to be detected and the external fixing bracket) is accommodated in the second detection chamber 140b. And the signal amplifier 200 to be detected completely blocks the second detection chamber 140b in the first direction A, so that the first detection chamber 140a and the second detection chamber 140b are relatively independent. The airtightness detector provided in the first detection chamber 140a and the second detection chamber 140b is used to detect the overall airtightness data and local airtightness data of the signal amplifier 200 to be detected, and judge whether there is an airtightness problem according to the airtightness data, and at the same time, the position of the airtightness problem can be accurately judged according to the airtightness data.

[0129] In at least one embodiment of the present application, a sealing groove 141c is provided on a side of the main housing 141 close to the first housing 120, and the sealing groove 141c surrounds the positioning housing 142;

[0130] The airtightness detection structure 100 further includes:

[0131] A sealing ring 180, which is arranged in the sealing groove 141c and surrounds the positioning housing 142.

[0132] It should be noted that the sealing groove 141c is a groove, and it is an annular groove. The sealing ring 180 is generally an annular sealing ring 180. In this embodiment, a two-piece sealing ring 180 is adopted. The sealing ring 180 includes a sealing member and a ring portion. Positioning holes 141d are provided at both ends of the sealing member, and both ends of the ring portion are respectively installed in the positioning holes 141d. During use, only the sealing member needs to be customized, and then an existing annular rubber ring is cut to form the ring portion, and then both ends of the ring portion are respectively installed in the positioning holes 141d, thus avoiding the problems of separate mold opening and too large mold.

[0133] Please refer to Figures 2 - 13 , in this embodiment, when the first housing 120 abuts against the second housing assembly 140, the first housing 120 abuts against the main housing 141, and the first housing 120 presses the sealing ring 180 to seal the connection between the first housing 120 and the main housing 141, so as to seal the connection between the first housing 120 and the main housing 141.

[0134] Avoid affecting the airtightness in the first detection cavity 140a and the second detection cavity 140b due to the gap at the connection between the first housing 120 and the main housing 141, making the detection result more accurate.

[0135] In at least one embodiment of the present application, a positioning post 121 is provided on one side of the first housing 120 close to the second housing assembly 140, a positioning hole 141d is formed on one side of the main housing 141 close to the first housing 120, and the positioning post 121 corresponds to the positioning hole 141d.

[0136] It should be noted that the positioning post 121 is generally a columnar body with one end being cylindrical and the other end being cylindrical, and the cylindrical part is fixed to the first housing 120 by screws or bolts, and the positioning hole 141d is generally a circular hole.

[0137] Please refer to Figures 2 - 13 , in this embodiment, when the first housing 120 approaches the second housing, first, the positioning post 121 aligns with the positioning hole 141d. When the first housing 120 continues to approach the main housing 141 along the first direction A, the positioning post 121 is received in the positioning hole 141d, enabling the first housing 120 to move in the first direction A along the length direction of the positioning post 121, avoiding displacement or deviation of the first housing 120 relative to the second housing due to reasons such as spindle deflection during the movement of the driving member 110, and further preventing the problem of unsealing between the first housing 120 and the main housing 141.

[0138] To ensure the airtightness between the first housing 120 and the main housing 141, avoid the situation of displacement or gap generation at the connection between the first housing 120 and the main housing 141 due to movement, and ensure the accuracy of the airtightness detection result.

[0139] An airtightness detection device 190 includes the airtightness detection structure 100 as described in any one of the above, and the airtightness detection device 190 further includes:

[0140] A frame body 191, forming a receiving position 191a, and the airtightness detection structure 100 is disposed on the receiving position 191a;

[0141] An air pump 192, disposed on the frame body 191 and communicating with the airtightness detection structure 100.

[0142] It should be noted that the frame body 191 is generally a rectangular housing, and the receiving position 191a is generally an inwardly recessed cavity.

[0143] Please refer to Figures 2 - 14, in this embodiment, driven by the driving member 110, the first housing 120 moves in the first direction A towards the second housing assembly 140. During the movement of the first housing 120, since the first wedge 130 is installed on the first housing 120, the first wedge 130 moves along the first direction A together.

[0144] When the first wedge 130 abuts against the second wedge 150, the driving member 110 continues to drive the first housing 120 to move in the first direction A towards the second housing assembly 140. The first wedge 130 continues to move, thereby generating a force on the second wedge 150 in the first direction A. Under the action of the first wedge 130, the second wedge 150 moves in the second direction B, and abuts the blocking member 160 against the signal antenna mounting hole of the housing of the signal amplifier 200 to be detected, thereby blocking the antenna mounting hole to complete the sealing of the entire signal amplifier 200 to be detected.

[0145] Meanwhile, when the blocking member 160 blocks the antenna mounting hole, the first housing 120 abuts against the second housing, so that the first housing 120 and the second housing are covered, to seal the first detection cavity 140a and the second detection cavity 140b, and isolate the space between the first housing 120 and the second housing from the outside to ensure the sealing performance.

[0146] High-pressure gas is introduced into the first detection cavity 140a through the air pump 192. Part of the high-pressure gas enters the first detection cavity 140a, and the other part enters the second detection cavity 140b through the communication channel 140c. Through the airtightness detector installed in the first detection cavity 140a and the airtightness detector installed in the second detection cavity 140b, the airtightness data of the whole signal amplifier 200 to be detected and the connection part 210 between the housing and the external fixing member can be detected, so as to judge whether there are airtightness problems in the whole and local parts of the signal amplifier 200 to be detected.

[0147] Meanwhile, the airtightness of the whole and local parts of the signal amplifier 200 to be detected is detected simultaneously to improve the detection efficiency. Secondly, by detecting the airtightness of the whole and local parts of the signal amplifier 200 to be detected, the accurate position of the airtightness failure can be accurately judged to facilitate subsequent maintenance and treatment.

[0148] The above are only the embodiments of the present application. It should be noted here that for those of ordinary skill in the art, without departing from the creative concept of the present application, improvements can still be made, but these all belong to the protection scope of the present application.

Claims

1. A method for detecting air tightness, characterized in that: include: The signal amplifier to be tested is placed in the first test cavity of the airtightness testing device, so that the connection between the housing and the external fixing member is located in the second test cavity; The airtightness detection structure is started to seal the inside of the airtightness detection structure as a whole; at the same time, the signal amplifier to be detected is pushed inside the airtightness detection structure to seal the signal antenna mounting hole on the shell; High-pressure gas is injected to fill the first detection cavity and the second detection cavity, so as to simultaneously perform airtightness detection on the entirety of the signal amplifier to be detected and the connection between the shell and the external fixing member.

2. An airtightness detection structure, applied to the airtightness detection method as claimed in claim 1, characterized in that: include: Driving parts; A first housing, one side of which is fixedly connected to the driving member; A first wedge block is arranged on a side of the first housing away from the driving member; A second housing component, a first detection cavity and a second detection cavity are provided on one side close to the first housing, the first detection cavity is connected with the second detection cavity, and a communication channel is provided on the second housing component, one end of the communication channel is connected with the first detection cavity, and the other end is connected with the second detection cavity; A second wedge block is provided on a side of the second shell close to the first shell; A blocking member, provided on the second wedge block; Among them, the driving member drives the first shell to approach the second shell assembly along the first direction, so that the first wedge block pushes the second wedge block to move perpendicular to the first direction, so as to block the signal antenna mounting hole on the shell of the signal amplifier to be detected on the first detection cavity, and the airtightness detection member performs airtightness detection on different areas of the signal amplifier to be detected in the first detection cavity and the second detection cavity, and the first direction is the vertical direction from the first shell to the second shell.

3. The airtightness detection structure according to claim 2, characterized in that: A first inclined surface is provided on a side of the first wedge block close to the second wedge block; A second inclined surface is provided on a side of the second wedge block close to the first wedge block, and a mounting surface is provided on the second wedge block. The mounting surface is arranged away from the second inclined surface, and the blocking member is mounted on the mounting surface. Among them, the first wedge block moves along the first direction to make the first inclined surface approach the second inclined surface. When the first inclined surface abuts against the second inclined surface, a force is generated on the second inclined surface along the second direction to push the second wedge block to approach the signal amplifier to be detected, so that the blocking member blocks the signal antenna mounting hole on the housing of the signal amplifier to be detected, and the second direction is set perpendicular to the first direction.

4. The airtightness detection structure according to claim 3, characterized in that: The mounting surface is provided with a receiving groove, the second wedge block is provided with a positioning protrusion, the positioning protrusion is arranged at the geometric center position of the receiving groove, the blocking member is arranged in the receiving groove, and the blocking member is arranged around the positioning protrusion.

5. The airtightness detection structure according to claim 2, characterized in that: The second housing component is provided with a sliding groove communicating with the first detection cavity; The second wedge block is slidably connected to the second housing assembly through the sliding groove.

6. The airtightness detection structure according to claim 5, characterized in that: The airtightness detection structure also includes: A first magnetic member is disposed on a side of the second wedge block away from the first wedge block; The second magnetic component is disposed in the sliding groove and is magnetically coupled with the first magnetic component. The first magnetic component and the second magnetic component are attracted to each other.

7. The airtightness detection structure according to claim 2, characterized in that: The second housing assembly comprises: A main shell is provided with a mounting cavity and an air inlet hole connected with the mounting cavity, wherein the mounting cavity is provided on a side close to the first shell; A positioning shell is installed in the installation cavity, the positioning shell has a first end face, a second end face and a side face, the first end face and the second end face are arranged opposite to each other, the side face extends from the first end face to the second end face, the first detection cavity is opened at the first end face, the second detection cavity is opened at the second end face, one end of the connecting channel is opened at the side face and connected with the first detection cavity, the other end extends to the second end face and connected with the second detection cavity, a sliding groove is opened on the positioning shell, and the sliding groove is connected with the air inlet.

8. The airtightness detection structure according to claim 7, characterized in that: A sealing groove is provided on one side of the main housing close to the first housing, and the sealing groove is arranged around the positioning housing; The airtightness detection structure also includes: The sealing ring is arranged in the sealing groove and surrounds the positioning shell.

9. The airtightness detection structure according to claim 7, characterized in that: A positioning column is provided on one side of the first shell body close to the second shell body component, and a positioning hole is opened on one side of the main shell body close to the first shell body, and the positioning column corresponds to the positioning hole.

10. An airtightness detection device, characterized in that: The airtightness detection device comprises the airtightness detection structure according to any one of claims 2 to 9, and the airtightness detection device further comprises: The frame is formed with a receiving position, and the airtightness detection structure is arranged on the receiving position; The air pump is arranged on the frame and is connected with the air tightness detection structure.

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