Inflation device for inspection of antenna oscillator

Abstract

The invention relates to the technical field of antenna oscillator processing and detection, in particular to an air inflation device for antenna oscillator inspection, which comprises an air distribution system and a plurality of air inflation tools, each air inflation tool comprises a plugging seat, a fastener, a clamping mechanism and an air injection mechanism, the clamping mechanism and the air injection mechanism are arranged on the plugging seat, and the fastener is arranged on the plugging seat. Each gas injection mechanism is in ventilation connection with the gas distribution system, the fastener can be sleeved on the oscillator outer conductor in a matching manner, the plugging seat can be assembled at the top ends of the four oscillator outer conductors on the same antenna oscillator in a clinging manner, and the plugging seat and the fastener can be assembled on the antenna oscillator by utilizing the clamping matching of the clamping mechanism and the fastener. According to the invention, through cooperation of the fastener and the clamping mechanism, the plugging seat and the fastener are assembled on the processed antenna oscillator in a clamping manner, air tightness detection can be effectively carried out on the antenna oscillator, the whole device is reasonable in structural layout, and the inflation tool is simple in overall structure, so that disassembly and assembly are convenient and rapid.

Description

Technical Field

[0001] The invention relates to the technical field of antenna vibrator processing and detection, in particular to an inflatable device for antenna vibrator inspection. Background Art

[0002] The antenna element is the basic part of the antenna. It usually refers to the specific part of the antenna that is responsible for receiving or transmitting electromagnetic waves. In different antenna designs, the element can have different shapes and structures, such as half-wave element, quarter-wave element, etc.

[0003] As the instruction manual Figure 7 As shown, an antenna vibrator in the prior art has a base 01, and four vertically extending cylindrical hollow vibrator outer conductors 02 are welded in an array above the base 01, and an obliquely extending vibrator blade 04 is welded on the outer wall of each vibrator outer conductor 02, and a welding strip 03 is formed at the welding point between each vibrator outer conductor 02 and the upper surface of the base 01.

[0004] When the antenna vibrator is welded, the sealing of the welding strip 03 needs to be ensured. If the sealing of the welding strip 03 is not good, moisture or corrosive gas may enter the welding area, causing corrosion and aging of the metal part, which will not only affect the structural strength of the antenna, but also affect the electrical performance of the antenna vibrator. However, in the existing processing procedures, it is difficult to effectively detect the airtightness of the welding strip 03 in the above-mentioned antenna vibrator by relying on the existing fixtures and equipment, and the detection effect is not good. Therefore, the present invention proposes an inflatable device for antenna vibrator inspection. Summary of the invention

[0005] The purpose of the present invention is to provide an inflatable device for testing an antenna element to solve the technical problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions.

[0007] An inflation device for inspecting antenna vibrators includes an air distribution system and a number of inflation tools. The inflation tools include a sealing seat, a fastener, a clamping mechanism and an air injection mechanism. The clamping mechanism and the air injection mechanism are arranged on the sealing seat. Each air injection mechanism is ventilated and connected to the air distribution system. The fastener can be matched and fitted on the outer conductor of the vibrator. The sealing seat can be tightly assembled on the top of the four outer conductors of the same antenna vibrator. The sealing seat and the fastener can be assembled on the antenna vibrator by clamping the clamping mechanism and the fastener. Through the operation of the air distribution system, each air injection mechanism inflates the outer conductor of each vibrator to achieve air tightness detection of the welding strip.

[0008] By using the cooperation of fasteners and clamping mechanisms, the sealing seat and fasteners are clamped and assembled on the processed antenna vibrator, and then the antenna vibrator and the inflation tooling are placed in a water pool together. Then, the gas is pumped to each gas injection mechanism through the gas distribution system, and the gas injection mechanism is used to inflate the outer conductors of each vibrator on the antenna vibrator to observe whether there are bubbles at the welding strips formed by the welding of the outer conductors of each vibrator and the base. If no bubbles are generated, it means that the air tightness of the welding strip at this location is good and the welding meets the processing requirements. Otherwise, it means that the sealing of the welding strip at this location is poor, and the air tightness of the antenna vibrator can be effectively tested. The structure of the entire device is reasonable and the operation is simple and convenient. By arranging a number of inflation toolings and each gas injection mechanism is connected to the gas distribution system, the air tightness detection of multiple antenna vibrators can be completed at one time, and the gas distribution system can be used to evenly distribute the gas source to each gas injection mechanism in a diversion manner, so that each gas injection mechanism shares the same gas source, reducing the equipment cost investment.

[0009] Preferably, the cross section of the fastener is U-shaped, and the fastener can simultaneously accommodate two vibrator outer conductors.

[0010] During assembly, the fasteners can be matched and snapped onto the outer conductors of the two oscillators to ensure that the contact area with the antenna oscillators is large enough, thereby ensuring the stability of the assembly. In addition, the fasteners are U-shaped and have a semi-enclosed effect, making disassembly and assembly more convenient.

[0011] Preferably, the clamping mechanism includes an insertion rod and a clamping rod, the insertion rod is installed through the blocking seat, the clamping rod is fixed on the end of the insertion rod, is perpendicular to the insertion rod, and extends to both sides, and one end of the fastener is symmetrically provided with two clamping grooves for the clamping rod to match and clamp into.

[0012] When the blocking seat and the fastener are assembled on the antenna vibrator, the insertion rod is inserted between the four vibrator outer conductors, and the clamping rod is ensured to pass between the vibrator outer conductors on both sides, the fastener is put on the two vibrator outer conductors, and the clamping rod is matched and clamped into the two clamping grooves on the fastener, so that the fastener and the clamping mechanism are clamped together, thereby realizing the assembly of the blocking seat and the fastener.

[0013] Preferably, the end of the insertion rod on which the clamping rod is installed is pointed, a vertically penetrating sliding hole is provided on the blocking seat, the insertion rod is slidably installed on the sliding hole, an end cap is fixed on the top of the insertion rod, a spring is sleeved on the outside of the insertion rod, one end of the spring is fixed to the end cap, and the other end is fixed to the surface of the blocking seat.

[0014] When assembling the sealing seat and the fastener, first insert the rod between the four vibrator outer conductors, and ensure that the bottom end of the sealing seat is in contact with the top end of the four vibrator outer conductors, then press the end cap downward to push the rod and the clamping rod down. At this time, the spring is compressed and stored, and then the clamping mechanism is clamped on the vibrator outer conductor and located above the clamping rod, and ensure that the clamping rod corresponds to the position of the two clamping slots. Then loosen the end cap, and push the end cap and the rod up and reset under the elastic force of the spring, thereby driving the clamping rod up and making the clamping rod correspondingly clamped in the two clamping slots until the top end of the fastener contacts the lower surface of the vibrator blade, and use the restraining force of the spring to firmly assemble the fastener and the sealing seat on the antenna vibrator. When disassembling, just press the end cap downward again, push the clamping rod down and disengage it from the clamping slot, then remove the fastener from the vibrator outer conductor, and then pull the rod out from between the four vibrator outer conductors, so that the disassembly and assembly of the entire inflatable tooling is convenient and quick enough.

[0015] Preferably, the gas injection mechanism includes a rectangular groove, a gas injection hole, a gas injection joint and a guide tube. The rectangular groove is arranged in the sealing seat and distributed around the sliding hole. The gas injection joint is connected to the side of the sealing seat, extends outward, and is communicated with the rectangular groove. The guide tube is connected to the gas injection joint, and the ends are connected to the gas distribution system. Four gas injection holes are evenly distributed on the surface where the sealing seat and the top of the vibrator outer conductor are in contact. The positions of the gas injection holes and the outer conductor of the vibrator correspond one by one. Each gas injection hole extends upward and is communicated with the rectangular groove.

[0016] Preferably, the gas distribution system includes an air pump, a first connecting pipe, an air source distributor and a plurality of second connecting pipes, one end of the first connecting pipe is connected to the output part of the air pump, and the other end is connected to the input part of the air source distributor, one end of the second connecting pipe is connected to each corresponding output port of the air source distributor, and the other end is connected to each corresponding flow guide pipe.

[0017] The air pump pumps the gas into the gas source distributor through the first connecting pipe, and the gas is separately distributed to each second connecting pipe and the guide pipe through the gas source distributor, and then flows into each rectangular groove in turn, and finally flows into the vibrator outer conductor through the gas injection hole, thereby achieving the inflation effect of each vibrator outer conductor.

[0018] Preferably, sealing rings are fixed around each gas injection hole port on the surface where the sealing seat abuts against the top of the vibrator outer conductor, and each sealing ring is made of rubber material.

[0019] After the sealing seat and fasteners are assembled on the antenna vibrator, each sealing ring will fit on the upper end surface of the vibrator's outer conductor. The sealing ring made of rubber material will be tightly filled between the top surfaces of the vibrator's outer conductors on the bottom surface of the sealing seat to achieve effective sealing, ensuring that the connection between the sealing seat and the vibrator's outer conductor has good sealing properties, thereby ensuring that the inflation test can be carried out smoothly.

[0020] Preferably, each flow guide pipe is a rubber hose.

[0021] A rubber hose is used as the guide tube, so that the guide tube has the ability to bend and deform, and thus can well adapt to the position change of the blocking seat during the inflation detection process.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows.

[0023] 1. The present invention utilizes the cooperation of fasteners and clamping mechanisms to clamp and assemble the sealing seat and the fasteners on the processed antenna vibrator, and then places the antenna vibrator and the inflation tooling together in a water pool, and then pumps gas to each gas injection mechanism through the gas distribution system, and inflates each vibrator outer conductor on the antenna vibrator by the gas injection mechanism, and observes whether there are bubbles at the welding strip formed by welding the outer conductor of each vibrator and the base. If no bubbles are generated, it means that the air tightness of the welding strip at this location is good and the welding meets the processing requirements. Otherwise, it means that the sealing of the welding strip at this location is poor, and the air tightness of the antenna vibrator can be effectively tested. The structure and layout of the entire device are reasonable, and the operation is simple and convenient.

[0024] 2. The present invention is equipped with a number of inflation tools, and each gas injection mechanism is connected to the gas distribution system, so that the air tightness detection of multiple antenna oscillators can be completed at one time, and the gas distribution system can be used to evenly distribute the gas source to each gas injection mechanism in a diversion manner, so that each gas injection mechanism shares the same gas source, reducing the equipment cost investment.

[0025] 3. The inflatable tooling provided by the present invention utilizes the elastic restraining force of the spring to drive the clamping rod to be clamped into the clamping slot. Combined with the interference fit between the fastener and the lower surface of the vibrator blade, the blocking seat and the fastener can be assembled on the antenna vibrator. The overall structure of the inflatable tooling is simple, and thus disassembly and assembly is convenient and quick enough. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the coordination between the blocking seat and the fastener structure in the present invention;

[0027] Figure 2 It is a detailed structural diagram of the gas injection mechanism in the present invention;

[0028] Figure 3 This is a schematic diagram of the installation of the sealing ring structure in the present invention;

[0029] Figure 4 It is a detailed structural diagram of the gas distribution system in the present invention;

[0030] Figure 5 This is a schematic diagram of the assembly structure of the plugging seat and the fastener;

[0031] Figure 6 This is the second schematic diagram of the assembly structure of the plugging seat and the fastener;

[0032] Figure 7 The figure is a schematic diagram of an antenna vibrator mechanism in the prior art.

[0033] In the figure: 01, base; 02, vibrator outer conductor; 03, welding strip; 04, vibrator blade; 1, sealing seat; 2, fastener; 3, clamping mechanism; 31, sliding hole; 32, plug rod; 33, end cap; 34, spring; 35, clamping rod; 36, clamping groove; 4, gas injection mechanism; 41, rectangular groove; 42, gas injection hole; 421, sealing ring; 43, gas injection joint; 44, guide pipe; 5, gas distribution system; 51, air pump; 52, first connecting pipe; 53, gas source distributor; 54, second connecting pipe. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] See also Figure 1-Figure 7 The present invention provides an inflation device for antenna vibrator inspection, including an air distribution system 5 and a plurality of inflation tools, the inflation tooling including a plugging seat 1, a fastener 2, a clamping mechanism 3 and an air injection mechanism 4, the clamping mechanism 3 and the air injection mechanism 4 are arranged on the plugging seat 1, and each air injection mechanism 4 is ventilated and connected to the air distribution system 5, the fastener 2 can be matched and fitted on the vibrator outer conductor 02, the plugging seat 1 can be tightly assembled on the top of the four vibrator outer conductors 02 on the same antenna vibrator, the plugging seat 1 and the fastener 2 can be assembled on the antenna vibrator by the clamping cooperation of the clamping mechanism 3 and the fastener 2, and the air distribution system 5 works, and each air injection mechanism 4 inflates the inner side of each vibrator outer conductor 02 respectively, so as to realize the air tightness detection of the welding strip 03.

[0036] When the inflation device for inspecting antenna vibrators is in use, the fastener 2 and the clamping mechanism 3 are used to clamp and assemble the sealing seat 1 and the fastener 2 on the processed antenna vibrator. Then, the antenna vibrator and the inflation tooling are placed in a water pool together. Then, the gas is pumped to each gas injection mechanism 4 through the gas distribution system 5. The gas injection mechanism 4 inflates each vibrator outer conductor 02 on the antenna vibrator to observe whether there are bubbles at the welding strip 03 formed by welding the outer conductor 02 of each vibrator and the base 01. If no bubbles are generated, it means that the air tightness of the welding strip 03 at this location is good and the welding meets the processing requirements. Otherwise, it means that the sealing of the welding strip 03 at this location is poor, and the air tightness of the antenna vibrator can be effectively inspected. The structure of the entire device is reasonable and the operation is simple and convenient.

[0037] In addition, by equipping a number of inflation tools, and each gas injection mechanism 4 is connected to the gas distribution system 5, the air tightness detection of multiple antenna oscillators can be completed at one time, and the gas distribution system 5 can be used to evenly distribute the gas source to each gas injection mechanism 4 in a diversion manner, so that each gas injection mechanism 4 shares the same gas source, reducing the equipment cost investment.

[0038] Specifically, the cross-section of the fastener 2 is U-shaped, and the fastener 2 can simultaneously accommodate two vibrator outer conductors 02. During assembly, the fastener 2 can be matched and clamped on the two vibrator outer conductors 02 to ensure that the contact area with the antenna vibrator is large enough, thereby ensuring the stability of the assembly. In addition, the fastener 2 is U-shaped, has a semi-enclosed effect, and is more convenient for disassembly and assembly.

[0039] Specifically, the clamping mechanism 3 includes an insertion rod 32 and a clamping rod 35. The insertion rod 32 is installed on the blocking seat 1. The clamping rod 35 is fixed on the end of the insertion rod 32, and is perpendicular to the insertion rod 32 and extends to both sides. One end of the fastener 2 is symmetrically provided with two clamping grooves 36 for the clamping rod 35 to match and snap into. When the blocking seat 1 and the fastener 2 are assembled on the antenna vibrator, the insertion rod 32 is inserted between the four vibrator outer conductors 02, and the clamping rod 35 is ensured to pass between the vibrator outer conductors 02 on both sides. The fastener 2 is put on the two vibrator outer conductors 02, and the clamping rod 35 is matched and snapped into the two clamping grooves 36 on the fastener 2, so that the fastener 2 and the clamping mechanism 3 are clamped, thereby realizing the assembly of the blocking seat 1 and the fastener 2.

[0040] Specifically, the end of the insertion rod 32 on which the clamping rod 35 is installed is pointed, so that the insertion rod 32 can be smoothly and quickly inserted into the space enclosed by the four vibrator outer conductors 02;

[0041] The plugging seat 1 is vertically provided with a through sliding hole 31, and the plug rod 32 is slidably installed on the sliding hole 31. The top of the plug rod 32 is fixed with an end cap 33, and the outer sleeve of the plug rod 32 is provided with a spring 34. One end of the spring 34 is fixed to the end cap 33, and the other end is fixed to the surface of the plugging seat 1. When the plugging seat 1 and the fastener 2 are assembled, as shown in FIG. Figure 5 and Figure 6As shown, first, insert the insertion rod 32 between the four vibrator outer conductors 02, and ensure that the bottom end of the blocking seat 1 is in contact with the top end of the four vibrator outer conductors 02, then press the end cap 33 downward to push the insertion rod 32 and the clamping rod 35 downward, at this time the spring 34 is compressed and stores force, then the clamping mechanism 3 is clamped on the vibrator outer conductor 02 and located above the clamping rod 35, and ensure that the clamping rod 35 corresponds to the position of the two clamping grooves 36, then loosen the end cap 33, and push the end cap 33 and the insertion rod 32 upward and reset under the elastic force of the spring 34, thereby bringing The movable clamping rod 35 is moved upward and the clamping rod 35 is correspondingly inserted into the two clamping grooves 36 until the top of the fastener 2 contacts the lower surface of the vibrator blade 04, and the fastener 2 and the blocking seat 1 are firmly assembled on the antenna vibrator by utilizing the restraining force of the spring 34. When disassembling, it is only necessary to press the end cap 33 downward again to push the clamping rod 35 to move downward and disengage it from the clamping groove 36, and then remove the fastener 2 from the vibrator outer conductor 02, and then pull the insertion rod 32 out from between the four vibrator outer conductors 02, so that the disassembly and assembly of the entire inflatable tooling is convenient and quick enough.

[0042] Specifically, the gas injection mechanism 4 includes a rectangular groove 41, a gas injection hole 42, a gas injection joint 43 and a guide tube 44. The rectangular groove 41 is arranged in the sealing seat 1 and is distributed around the sliding hole 31. The gas injection joint 43 is connected to the side of the sealing seat 1 and extends outward and is communicated with the rectangular groove 41. The guide tube 44 is connected to the gas injection joint 43, and the ends are connected to the gas distribution system 5. Four gas injection holes 42 are evenly distributed on the surface where the sealing seat 1 abuts against the top of the vibrator outer conductor 02. The gas injection holes 42 correspond to the positions of the vibrator outer conductor 02 one by one. When the sealing seat 1 and the fastener 2 are assembled on the antenna vibrator, each gas injection hole 42 corresponds to the position of each vibrator outer conductor 02 one by one and is communicated with each other. Each gas injection hole 42 extends upward and is communicated with the rectangular groove 41.

[0043] The gas distribution system 5 includes an air pump 51, a first connecting pipe 52, an air source distributor 53 and a plurality of second connecting pipes 54. One end of the first connecting pipe 52 is connected to the output part of the air pump 51, and the other end is connected to the input part of the air source distributor 53. One end of the second connecting pipe 54 is connected to the corresponding output ports of the air source distributor 53, and the other end is connected to the corresponding flow guide pipes 44.

[0044] The air pump 51 operates to pump the gas into the gas source distributor 53 through the first connecting tube 52, and the gas is separately distributed to each second connecting tube 54 and the guide tube 44 through the gas source distributor 53, and then flows into each rectangular groove 41 in turn, and finally flows into the vibrator outer conductor 02 through the gas injection hole 42, thereby achieving the inflation effect on each vibrator outer conductor 02.

[0045] It is worth noting that the air pump 51 and the air source distributor 53 are both based on existing technologies, and their specific structures, control methods and working principles are all existing public knowledge, and therefore, they will not be described in detail in this application.

[0046] Specifically, sealing rings 421 are fixed around the ports of each gas injection hole 42 on the surface where the sealing seat 1 abuts against the top of the vibrator outer conductor 02. Each sealing ring 421 is made of rubber material. After the sealing seat 1 and the fastener 2 are assembled on the antenna vibrator, each sealing ring 421 will fit on the upper end surface of the vibrator outer conductor 02. The sealing ring 421 made of rubber material is tightly filled between the top surfaces of each vibrator outer conductor 02 on the bottom surface of the sealing seat 1, thereby achieving effective sealing and ensuring that the connection between the sealing seat 1 and the vibrator outer conductor 02 has good sealing properties, thereby ensuring that the inflation detection can be carried out smoothly.

[0047] Specifically, each guide tube 44 is made of a rubber hose. Using a rubber hose as the guide tube 44 allows the guide tube 44 to have the ability to bend and deform, and thus can well adapt to the position change of the blocking seat 1 during the inflation detection process.

[0048] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. An inflatable device for testing antenna elements, characterized in that: It comprises an air distribution system (5) and a plurality of air-inflating tools, wherein the air-inflating tools comprise a blocking seat (1), a fastener (2), a clamping mechanism (3) and an air-injection mechanism (4); The clamping mechanism (3) and the gas injection mechanism (4) are arranged on the blocking seat (1), and each of the gas injection mechanisms (4) is ventilatedly connected to the gas distribution system (5); The fastener (2) can be matched and sleeved on the vibrator outer conductor (02), and the blocking seat (1) can be closely mounted on the top ends of four vibrator outer conductors (02) on the same antenna vibrator; The blocking seat (1) and the fastener (2) can be assembled on the antenna vibrator by means of the clamping cooperation between the clamping mechanism (3) and the fastener (2), and the gas distribution system (5) works so that each gas injection mechanism (4) can inflate the outer conductor (02) of each vibrator to achieve the air tightness detection of the welding strip (03).

2. The inflatable device for testing an antenna element according to claim 1, characterized in that: The cross section of the fastener (2) is U-shaped, and the fastener (2) can simultaneously accommodate two vibrator outer conductors (02).

3. The inflatable device for testing antenna elements according to claim 2, characterized in that: The clamping mechanism (3) comprises an inserting rod (32) and a clamping rod (35); The insertion rod (32) is installed through the blocking seat (1), and the clamping rod (35) is fixed on the end of the insertion rod (32), is perpendicular to the insertion rod (32), and extends to both sides; One end of the fastener (2) is symmetrically provided with two clamping grooves (36) for the clamping rod (35) to be matched and clamped into.

4. The inflatable device for testing antenna elements according to claim 3, characterized in that: The end of the insert rod (32) on which the clamping rod (35) is mounted is pointed; The blocking seat (1) is vertically provided with a through sliding hole (31), and the insertion rod (32) is slidably installed in the sliding hole (31); An end cap (33) is fixed to the top end of the insertion rod (32), and a spring (34) is sleeved on the outside of the insertion rod (32); One end of the spring (34) is fixed to the end cap (33), and the other end is fixed to the surface of the blocking seat (1).

5. The inflatable device for testing antenna elements according to claim 4, characterized in that: The gas injection mechanism (4) comprises a rectangular groove (41), a gas injection hole (42), a gas injection joint (43) and a flow guide pipe (44); The rectangular groove (41) is arranged in the blocking seat (1) and is distributed around the sliding hole (31); The gas injection joint (43) is connected to the side of the blocking seat (1), extends outward, and is in communication with the rectangular groove (41); The flow guide pipe (44) is connected to the gas injection joint (43), and both ends are connected to the gas distribution system (5); Four gas injection holes (42) are evenly distributed on the surface of the sealing seat (1) abutting against the top of the vibrator outer conductor (02), the positions of the gas injection holes (42) and the vibrator outer conductor (02) correspond one to one, and each of the gas injection holes (42) extends upward and communicates with the rectangular groove (41).

6. The inflatable device for testing an antenna element according to claim 5, characterized in that: The gas distribution system (5) comprises an air pump (51), a first connecting pipe (52), an air source distributor (53) and a plurality of second connecting pipes (54); One end of the first connecting pipe (52) is connected to the output portion of the air pump (51), and the other end is connected to the input portion of the air source distributor (53); One end of the second connecting pipe (54) is connected to the output ports of the gas source distributor (53) respectively, and the other end is connected to the flow guide pipes (44) respectively.

7. The inflatable device for testing an antenna element according to claim 5, characterized in that: Sealing rings (421) are respectively fixed around the ports of the gas injection holes (42) on the surface of the sealing seat (1) abutting against the top of the vibrator outer conductor (02); Each of the sealing rings (421) is made of rubber material.

8. The inflatable device for testing an antenna element according to claim 5, characterized in that: Each of the flow guide pipes (44) is a rubber hose.

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