Sealing performance detection equipment for external antenna housing

Abstract

The utility model discloses sealing performance detection equipment for an external antenna housing, which comprises a base provided with an antenna jack, the base is provided with an air pressure pipeline communicated with the antenna jack, the air pressure pipeline is provided with an air pressure sensor, and a sealing mechanism is further arranged in the antenna jack. According to the utility model, the antenna housing is inserted into the antenna jack, the sealing connection between the antenna housing and the antenna jack is realized through the sealing mechanism, high-pressure gas is injected into the antenna housing through the air pressure pipeline and the pressure is maintained, and the air pressure in the air pressure pipeline is detected through the air pressure sensor; therefore, the detection of the sealing performance of the antenna housing is realized, the service life of the antenna is effectively guaranteed, and the failure rate is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of antenna production, and in particular relates to a sealing performance detection device for an external antenna shell. Background Art

[0002] An antenna is a converter that can convert guided waves propagating on a transmission line into electromagnetic waves propagating in an unbounded medium, or vice versa. Figure 1 The inside of the antenna housing is shown and the antenna housing is welded and sealed by an ultrasonic welding machine.

[0003] After the antenna shell is welded, if the sealing performance of the antenna shell is poor, it will affect the protection effect of the antenna shell on the PCB antenna, resulting in an increased failure rate and a shortened service life of the PCB antenna.

[0004] Therefore, there is an urgent need for a sealing performance testing device for an external antenna housing to solve the problem of poor sealing performance of the antenna housing. Utility Model Content

[0005] The purpose of the utility model is to overcome the defects in the prior art, provide an external device for detecting the sealing performance of an antenna shell, and reduce the probability of poor sealing of the antenna shell.

[0006] In order to achieve the above-mentioned purpose, the specific technical scheme of the sealing performance detection device of the external antenna housing of the utility model is as follows:

[0007] A sealing performance detection device for an external antenna shell comprises a base with an antenna jack, the base is provided with an air pressure pipeline connected to the antenna jack, the air pressure pipeline is provided with an air pressure sensor, and a sealing mechanism is also provided in the antenna jack.

[0008] Preferably, the antenna socket is vertically opened on the top surface of the base, and a plurality of antenna sockets are opened and arranged at equal intervals along the length direction of the base.

[0009] Preferably, the air pressure pipeline includes an air intake pipe, one end of which is connected to external high-pressure air, and the other end of which is connected to the air pressure sensor, and the air intake pipe is connected to each of the antenna jacks through a branch pipe.

[0010] Preferably, the number of the air inlet pipes is consistent with the number of the antenna jacks and corresponds one to one, and each branch pipe is installed with a valve.

[0011] Preferably, a pressure plate is arranged opposite to the base, and the base is fixedly connected to a cylinder for driving the pressure plate to rise and fall via a bracket.

[0012] Preferably, the sealing mechanism includes a lifting sleeve coaxially arranged inside the antenna socket, the lifting sleeve is slidingly and sealingly connected to the antenna socket, a spring is arranged between the lifting sleeve and the inner wall of the antenna socket, an elastic sealing sleeve is coaxially fixedly connected to the top end of the lifting sleeve, and a clamping piece is circumferentially arranged on the outer periphery of the sealing sleeve.

[0013] Preferably, the antenna jack is a stepped hole with a stepped surface, the outer diameter of the lower section of the lifting sleeve is smaller than the outer diameter of the upper section of the lifting sleeve, the spring sleeve is arranged on the lower section of the lifting sleeve, the two ends of the spring are respectively connected to the upper section of the lifting sleeve and the stepped surface, and the bottom end surface of the lifting sleeve can be sealingly abutted against the stepped surface.

[0014] Preferably, the clamping member comprises a plurality of clamping blocks, each of which is equally spaced around the sealing sleeve, the bottom end of each clamping block is elastically connected to the lifting sleeve, and the thickness of each clamping block along the radial direction of the sealing sleeve gradually increases vertically upward.

[0015] Preferably, a flange is provided on the outer periphery of the top end of the sealing sleeve, and the flange covers the top end of the clamping block.

[0016] The sealing performance detection device of the external antenna shell of the utility model has the following advantages: the antenna shell is plugged into the antenna jack, and a sealed connection between the antenna shell and the antenna jack is achieved through a sealing mechanism, and high-pressure gas is injected into the interior of the antenna shell through a pneumatic pipeline and the pressure is maintained, and at the same time, the air pressure inside the pneumatic pipeline is detected by a pneumatic pressure sensor. If the air pressure is lower than the set value, it indicates that the antenna shell is leaking, thereby realizing the detection of the sealing performance of the antenna shell, thereby effectively ensuring the service life of the antenna and reducing the failure rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an antenna housing in the prior art;

[0018] Figure 2 It is a structural schematic diagram of the detection equipment of the utility model;

[0019] Figure 3 It is a cross-sectional view of the detection device of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the sealing mechanism of the utility model in the storage state;

[0021] Figure 5 It is a schematic diagram of the structure of the sealing mechanism of the utility model in the pop-up state;

[0022] Figure 6 This is a schematic diagram of the connection structure between the lifting sleeve and the sealing ring of the utility model;

[0023] Figure 7 It is a cross-sectional view of the lifting sleeve and the sealing ring of the utility model;

[0024] Figure 8 It is a structural schematic diagram of the clamping block of the utility model;

[0025] Explanation of marks in the figure: 1. Antenna housing; 101. Plug connector; 201. Cylinder; 202. Bracket; 203. Pressure plate; 204. Base; 205. Antenna jack; 206. Step surface; 301. Inlet pipe; 302. Valve; 303. Branch pipe; 304. Air pressure sensor; 4. Sealing mechanism; 401. Sealing sleeve; 402. Clamping block; 403. Lifting sleeve; 404. Spring; 405. Sealing ring; 4011. Flange. DETAILED DESCRIPTION

[0026] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0027] “Top surface”, “bottom surface” and “underside” are used as references to the normal use state of the detection equipment, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] After the PCB antenna is processed, it is usually necessary to install the antenna on a Figure 1 In the antenna housing 1 shown, the antenna housing 1 is welded and sealed by an ultrasonic welding machine. The plug connector 101 on the antenna housing 1 is used to pass the connecting line of the PCB board antenna. At the same time, the plug connector 101 is used to install the antenna on the device. In order to effectively ensure the service life of the PCB board antenna inside the antenna housing 1 and reduce the failure rate, the antenna housing 1 is required to have good sealing performance. For this reason, after the antenna housing 1 is welded, the antenna housing 1 needs to be tested for sealing performance.

[0029] For the sealing performance test of the antenna housing 1, a sealing performance testing device for an external antenna housing is provided, such as Figure 2 As shown, it includes a base 204 with an antenna jack 205 , the base 204 is provided with an air pressure pipeline connected to the antenna jack 205 , the air pressure pipeline is provided with an air pressure sensor 304 , and a sealing mechanism 4 is also provided in the antenna jack 205 .

[0030] When the above-mentioned detection equipment is used, the plug connector 101 is plugged into the antenna socket 205, and the sealing mechanism 4 is arranged between the plug connector 101 and the antenna socket 205 to achieve sealing between the two; the antenna socket 205 is connected to the external air pump through the air pressure pipeline, and the air pump injects air into the antenna housing 1 through the air pressure pipeline, and keeps the air pressure at a set value for a period of time, and the air pressure inside the air pressure pipeline is detected by the air pressure sensor 304. If the air pressure value detected by the pressure sensor 304 remains at the set value during the pressure holding period, it means that the sealing performance of the antenna housing 1 is good. If the air pressure detected by the air pressure sensor 304 is lower than the set value during the pressure holding period, it means that the antenna housing 1 has air leakage and the sealing performance is poor. In this way, the sealing performance of the antenna housing 1 can be effectively detected to ensure the protection effect of the antenna housing 1 on the PCB board antenna, so as to extend the service life of the antenna and reduce the failure rate.

[0031] A further improvement is, Figure 2 As shown, the antenna jack 205 is vertically opened on the top surface of the base 204, and a plurality of antenna jacks 205 are opened and arranged at equal intervals along the length direction of the base 204. The antenna jack 205 set on the top surface of the base 204 can make it more convenient to dock and insert the plug connector 101. The setting of multiple antenna jacks 205 can plug multiple antenna housings 1, and the sealing performance of multiple antenna housings 1 can be tested at one time, which greatly improves the detection efficiency.

[0032] A further improvement is, Figure 2 and 3 As shown, the air pressure pipeline includes an air inlet pipe 301, one end of which is fed with external high-pressure air, and the other end of the air inlet pipe 301 is connected to an air pressure sensor 304. The air inlet pipe 301 is connected to each antenna jack 205 through a branch pipe 303. The number of air inlet pipes 301 is consistent with the number of antenna jacks 205 and corresponds to each other. Each branch pipe 303 is equipped with a valve 302. One end of the air inlet pipe 301 is connected to an air pump, which can be used to inflate gas into the air inlet pipe 301 so that the air pressure inside the air inlet pipe 301 reaches a set value and maintains the air pressure set value for a period of time. A vent valve can be provided at the connection between the air pump and the air inlet pipe 301. After the detection is completed, the air pressure inside the air inlet pipe 301 is vented through the vent valve; the gas can enter the antenna housing 1 after passing through the air inlet pipe 301, the branch pipe 303 and the antenna jack 205 in sequence, thereby realizing the detection of the sealing performance of the antenna housing 1.

[0033] When multiple antenna housings 1 are detected at one time, if one of the antenna housings 1 leaks, the opening and closing of each branch pipe 303 can be controlled individually by the valve 302, so as to accurately locate the leaking antenna housing 1.

[0034] A further improvement is that a pressing plate 203 is arranged opposite to the base 204, and the base 204 is fixedly connected to a cylinder 201 for driving the pressing plate 203 to rise and fall through a bracket 202. When the cylinder 201 is working, it can push the pressing plate 203 to rise and fall. When the pressing plate 203 descends, the pressing plate 203 can press each antenna housing 1 plugged into the antenna socket 205 to prevent the antenna housing 1 from falling off from the antenna socket 205 due to high air pressure during the detection process, so as to ensure the detection efficiency and detection accuracy.

[0035] A further improvement is, Figure 2-8 As shown, the sealing mechanism 4 includes a lifting sleeve 403 coaxially arranged inside the antenna socket 205, the lifting sleeve 403 is slidingly and sealingly connected to the antenna socket 205, a spring 404 is arranged between the lifting sleeve 403 and the inner wall of the antenna socket 205, the top end of the lifting sleeve 403 is coaxially fixedly connected with an elastic sealing sleeve 401, and a clamping member is circumferentially arranged on the outer periphery of the sealing sleeve 401.

[0036] In the above detection equipment, the setting of the sealing mechanism 4 can ensure the smooth plugging and unplugging of the plug connector 101 and the antenna socket 205 while ensuring the sealing effect between the two, thereby reducing the probability of air leakage affecting the detection result; the working principle of the sealing mechanism 4 is as follows: before connecting the plug connector 101, the lifting sleeve 403 is pushed upward by the elastic force of the spring 404, so that the sealing sleeve 401 extends out of the antenna socket 205. The sealing sleeve 401 can be a rubber sleeve, so that it has good sealing performance and good elasticity. When the sealing sleeve 401 is located outside the antenna socket 205, the sealing sleeve 401 is in an expanded state, at this time, the plug connector 101 can be easily inserted into the interior of the sealing sleeve 401, and then the pressing plate 203 presses down the antenna housing 1, and the lifting sleeve 403 is pushed up to the antenna through the plug connector 101. The antenna jack 205 is pushed inside, and the sealing sleeve 401 and the clamping piece enter the antenna jack 205 at the same time. During the descending process, the inner wall of the antenna jack 205 squeezes the clamping piece, so that the clamping piece squeezes the sealing sleeve 401 toward the side of the plug connector 101, so that the sealing sleeve 401 and the plug connector 101 are tightly connected, and the sealing performance between the two is effectively improved; at the same time, the lifting sleeve 403 is sealed and connected with the antenna jack 205, thereby realizing the sealed connection between the plug connector 101 and the antenna jack 205, and improving the detection accuracy; after the detection is completed, the pressure plate 203 is reset, and the spring 404 pushes the lifting sleeve 403 upward, and at the same time pushes the plug connector 101 and the sealing sleeve 401 out of the antenna jack 205, and resets the clamping piece. At this time, the antenna housing 1 can be easily removed, which improves the convenience of operating the detection equipment.

[0037] Compared with the prior art in which a sealing ring is arranged on the inner wall of the antenna socket 205, the arrangement of the above-mentioned sealing mechanism 4 can reduce the resistance encountered when the plug connector 101 is inserted into and removed from the antenna socket 205, thereby improving the convenience of plugging and unplugging the antenna housing 1 and the antenna socket 205 and the convenience of using the equipment; at the same time, it can reduce the wear of the seal caused by the plug connector 101, effectively ensure the sealing effect after the antenna housing 1 and the antenna socket 205 are connected, and improve the detection accuracy of the detection equipment.

[0038] A further improvement is, Figure 3 As shown, the antenna jack 205 is a stepped hole with a stepped surface 206, the outer diameter of the lower section of the lifting sleeve 403 is smaller than the outer diameter of the upper section of the lifting sleeve 403, the spring 404 is sleeved on the lower section of the lifting sleeve 403, the two ends of the spring 404 are respectively connected to the upper section of the lifting sleeve 403 and the stepped surface 206, and the bottom end surface of the lifting sleeve 403 can be sealed against the stepped surface 206. The outer diameter of the lower section of the lifting sleeve 403 is reduced, which can free up space for installing the spring 404, thereby improving the convenience of installing the spring 404; the setting of the stepped surface 206 can limit the lifting sleeve 403, and a sealing ring 405 can be set at the bottom of the lifting sleeve 403. In this way, when the lifting sleeve 403 abuts against the stepped surface 206, the sealing performance of the two can be achieved through the sealing ring 405, thereby improving the sealing effect between the lifting sleeve 403 and the antenna jack 205, so as to ensure the detection accuracy of the detection equipment.

[0039] A further improvement is, Figure 3 , 4 The clamping member 8 includes a plurality of clamping blocks 402, each of which is evenly spaced around the sealing sleeve 401, the bottom end of the clamping block 402 is elastically connected to the lifting sleeve 403, and the thickness of the clamping block 402 along the radial direction of the sealing sleeve 401 gradually increases vertically upward. The provision of multiple clamping blocks 402 can improve the uniformity of the force on the sealing sleeve 401 to ensure the sealing effect between the sealing sleeve 401 and the plug connector 101; the bottom end of the clamping block 402 can be connected to the lifting sleeve 403 through a rubber block, or the two can be hinged through a rotating shaft, and a torsion spring is provided at the hinge, so that the clamping block 402 can be turned inside out; when the lifting sleeve 403 is received in the antenna socket 205, the antenna socket 205 squeezes the clamping block 402, so that each clamping block 402 rotates in a direction close to the plug connector 101, thereby clamping the sealing sleeve 401 and the plug connector 101; when the lifting sleeve 403 rises, the clamping block 402 extends out of the antenna socket 205, the squeezing force of the antenna socket 205 on the clamping block 402 disappears, and the clamping block 402 rotates in a direction away from the plug connector 101, thereby loosening the sealing sleeve 401 and the plug connector 101.

[0040] A further improvement is, Figure 6As shown, the outer periphery of the top of the sealing sleeve 401 is provided with a flange 4011, and the flange 4011 covers the top of the clamping block 402. The flange 4011 can separate the antenna housing 1 and each clamping block 402, thereby preventing the clamping block 402 from causing wear to the antenna housing 1 when rotating.

[0041] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A sealing performance testing device for an external antenna housing, characterized in that: It comprises a base (204) provided with an antenna jack (205), the base (204) being provided with an air pressure pipeline connected to the antenna jack (205), the air pressure pipeline being provided with an air pressure sensor (304), and a sealing mechanism (4) being further provided in the antenna jack (205); The sealing mechanism (4) comprises a lifting sleeve (403) coaxially arranged inside the antenna socket (205); the lifting sleeve (403) is slidably sealedly connected to the antenna socket (205); a spring (404) is arranged between the lifting sleeve (403) and the inner wall of the antenna socket (205); a top end of the lifting sleeve (403) is coaxially fixedly connected to an elastic sealing sleeve (401); and a clamping piece is circumferentially arranged on the outer periphery of the sealing sleeve (401).

2. The sealing performance testing device for the external antenna housing according to claim 1, characterized in that: The antenna jack (205) is vertically opened on the top surface of the base (204), and a plurality of antenna jacks (205) are opened and arranged at equal intervals along the length direction of the base (204).

3. The sealing performance testing device for the external antenna housing according to claim 2, characterized in that: The air pressure pipeline comprises an air intake pipe (301), one end of the air intake pipe (301) is passed through external high-pressure air, the other end of the air intake pipe (301) is connected to the air pressure sensor (304), and the air intake pipe (301) is connected to each of the antenna jacks (205) through a branch pipe (303).

4. The sealing performance testing device for the external antenna housing according to claim 3, characterized in that: The number of the air inlet pipes (301) is consistent with the number of the antenna jacks (205) and corresponds one to one, and each branch pipe (303) is installed with a valve (302).

5. The sealing performance testing device for the external antenna housing according to claim 2, characterized in that: A pressing plate (203) is arranged opposite to the base (204) directly above the base, and the base (204) is fixedly connected to a cylinder (201) for driving the pressing plate (203) to move up and down via a bracket (202).

6. The sealing performance testing device for an external antenna housing according to claim 1, characterized in that: The antenna jack (205) is a stepped hole having a stepped surface (206); the outer diameter of the lower section of the lifting sleeve (403) is smaller than the outer diameter of the upper section of the lifting sleeve (403); the spring (404) is sleeved on the lower section of the lifting sleeve (403); the two ends of the spring (404) are respectively connected to the upper section of the lifting sleeve (403) and the stepped surface (206); and the bottom end surface of the lifting sleeve (403) can be in sealing contact with the stepped surface (206).

7. The sealing performance testing device for an external antenna housing according to claim 1, characterized in that: The clamping member comprises a plurality of clamping blocks (402), each of the clamping blocks (402) being equidistantly distributed around the sealing sleeve (401) in the circumferential direction, the bottom end of the clamping block (402) being elastically connected to the lifting sleeve (403), and the thickness of the clamping block (402) along the radial direction of the sealing sleeve (401) gradually increasing vertically upward.

8. The sealing performance testing device for the external antenna housing according to claim 7, characterized in that: A flange (4011) is provided on the outer periphery of the top end of the sealing sleeve (401), and the flange (4011) covers the top end of the clamping block (402).

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