CN115395343A

CN115395343A - N-type radio frequency coaxial connector inner conductor air cavity type assembling and disassembling tool and method

Info

Publication number: CN115395343A
Application number: CN202210897742.3A
Authority: CN
Inventors: 林晨阳; 杜小东; 史建成; 常义宽; 袁畅; 樊勋; 马晓琳; 李琳; 周明洋
Original assignee: CETC 29 Research Institute
Current assignee: CETC 29 Research Institute
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2022-11-25

Abstract

The invention belongs to the technical field of electronic device assembling and disassembling tools, and particularly relates to an N-type radio frequency coaxial connector inner conductor air cavity assembling and disassembling tool and a method. The technical scheme is as follows: the utility model provides a N type radio frequency coaxial connector inner conductor gas chamber formula handling instrument, includes the sleeve, installs the rubber claw that is used for the centre gripping inner conductor in the sleeve, is equipped with annular air chamber in the rubber claw, and the inner wall of annular air chamber is provided with a plurality of archs, and the upper end of rubber claw is connected with fills the gassing unit, fills gassing unit and annular air chamber intercommunication. The invention provides an N-type radio frequency coaxial connector inner conductor air cavity type assembling and disassembling tool and a method, wherein an inner conductor can be disassembled and assembled under the condition that a shell is not disassembled.

Description

N-type radio frequency coaxial connector inner conductor air cavity type assembling and disassembling tool and method

Technical Field

The invention belongs to the technical field of electronic device assembling and disassembling tools, and particularly relates to an N-type radio frequency coaxial connector inner conductor air cavity assembling and disassembling tool and a method.

Background

The N-type radio frequency coaxial connector is used for transmitting radio frequency signals, has the characteristic of wide transmission frequency range, can reach 18GHz or higher, and is widely applied to the field of electronic equipment. In antenna products, an N-type rf coaxial connector is often used as an external rf signal input/output interface. The N-type radio frequency coaxial connector consists of a shell and an inner conductor. During debugging, the shell and the inner conductor of the N-type radio frequency coaxial connector need to be adjusted continuously so as to achieve the optimal electrical performance index. Especially, the multi-antenna array has high performance requirements on each antenna unit, and each unit is required to reach the optimal electrical performance index.

When the antenna is debugged, the shell and the inner conductor of the N-type radio frequency coaxial connector need to be continuously adjusted to achieve the optimal electrical performance index, and the adjustment contents comprise the wire return of the inner conductor, the replacement of the inner conductor, the addition of a metal gasket on the shell installation surface, the replacement of the shell and the like. The N-type radio frequency coaxial connector is compact in structure, the outer diameter of the inner conductor is only 3mm, and the diameter of the inner hole of the shell is only 7mm. At present, the inner conductor cannot be adjusted independently, and the shell can only be disassembled firstly, and then the inner conductor is disassembled for adjustment. Two problems arise:

firstly, determining whether the performance meets the requirement, and connecting the N-type radio frequency coaxial connector with an instrument for detection. The shell needs to be disassembled and assembled to detect when the inner conductor is adjusted every time. The process is repeated, so that time is wasted, and debugging efficiency is influenced.

Second, slight changes in the state of the housing after reassembly may also lead to poor electrical performance characteristics.

Disclosure of Invention

In order to solve the above problems in the prior art, an object of the present invention is to provide an N-type rf coaxial connector inner conductor air cavity type assembling and disassembling tool and method capable of disassembling and assembling an inner conductor without disassembling a housing.

The technical scheme adopted by the invention is as follows:

the utility model provides a N type radio frequency coaxial connector inner conductor gas chamber formula handling instrument, includes the sleeve, installs the rubber claw that is used for the centre gripping inner conductor in the sleeve, is equipped with annular air chamber in the rubber claw, and the inner wall of annular air chamber is provided with a plurality of archs, and the upper end of rubber claw is connected with fills the gassing unit, fills gassing unit and annular air chamber intercommunication.

The sleeve can extend between the outer shell and the inner conductor of the N-type radio frequency coaxial connector, and the inner conductor can be reliably clamped by the bulges on the rubber claws by inflating and deflating the rubber claws in the sleeve. The inner conductor is clamped by the bulge in the rubber claw, and the inner conductor can be screwed in or out of the threaded hole of the antenna body by rotating the assembling and disassembling tool. Therefore, the inner conductor can be disassembled and assembled without disassembling the shell by using the invention, and the shell and the inner conductor can be respectively adjusted during debugging, thereby improving the debugging efficiency.

As a preferable scheme of the invention, an annular groove is arranged in the lower end of the sleeve, and the lower end of the rubber claw is arranged in the annular groove of the sleeve. The ring channel of sleeve lower extreme can support the lower extreme of rubber claw, avoids the rubber claw to deviate from in the sleeve.

As a preferable scheme of the invention, the outer wall of the sleeve is matched with an inner hole of a shell of the N-type radio frequency coaxial connector, and the inner wall of the annular groove is matched with the outer diameter of an inner conductor of the N-type radio frequency coaxial connector. When inserting the sleeve in the shell hole, because of sleeve outer wall and shell hole phase-match and ring channel inner wall and inner conductor external diameter phase-match, then can guarantee that inner conductor downside is just to the screw hole of antenna body.

As the preferable scheme of the invention, the air inflation and deflation unit comprises an air cylinder, one end of the air cylinder is connected with the rubber claw, an inner cavity of the air cylinder is communicated with the annular air chamber of the rubber claw, and a push rod is inserted into the other end of the air cylinder. The push rod is pressed down to increase the air pressure in the annular air chamber of the rubber claw, and the plurality of bulges on the air chamber expand to form the clamping force on the inner conductor. When the push rod is released to restore the original state, the air pressure in the annular air chamber of the rubber claw is reduced, the plurality of bulges on the annular air chamber are contracted into the original state, and the inner conductor is released. The annular air chamber of the rubber claw is inflated and deflated through the inflation and deflation unit, and the operation is convenient.

As a preferable scheme of the invention, the upper end of the rubber claw is provided with an inverted T-shaped cavity, the lower end of the air cylinder is provided with an inverted T-shaped boss, the T-shaped boss is arranged in the T-shaped cavity, and the T-shaped boss is of a hollow structure. The rubber claw has elasticity, and the T-shaped boss can be arranged in a T-shaped cavity inverted at the upper end of the rubber claw and sealed by smearing glue. The middle part of the T-shaped boss is hollow, so that the cavity of the inflator can be communicated with the annular cavity of the rubber claw.

As a preferable scheme of the present invention, the lower end of the cylinder is provided with a flange, the upper end of the sleeve is provided with a flange, and the flange at the upper end of the sleeve is connected with the flange at the lower end of the cylinder. The lower end of the inflator is connected with the upper end of the sleeve through the flange, so that the inflator is fixed relative to the sleeve, and the reliable connection between the inflator and the rubber claw is ensured.

In a preferred embodiment of the present invention, a sealing ring is disposed between the push rod and the air cylinder. The sealing ring seals the gap between the push rod and the air cylinder, so that air leakage of the air cylinder is avoided.

As a preferable scheme of the invention, a flange is arranged at the upper end of the inflator, a flange is arranged at the upper end of the push rod, and a limit column is sleeved between the flange at the upper end of the inflator and the flange at the upper end of the push rod. The limit post can guide the push rod, and the push rod is guaranteed to move from the air cylinder stably.

As the preferable scheme of the invention, the limiting column is sleeved with a spring, and the spring is positioned between a flange at the upper end of the inflator and a flange at the upper end of the push rod. After the push rod is loosened, the push rod moves upwards under the action of the resilience force of the spring until being blocked by the limiting column, and the push rod is prevented from being pulled upwards manually.

An N-type radio frequency coaxial connector inner conductor air cavity type loading and unloading method comprises the following steps:

the steps of installing the inner conductor are as follows: inserting the inner conductor into the sleeve, inflating the annular air chamber of the rubber claw by using the inflation and deflation unit, and expanding a plurality of bulges on the annular air chamber and clamping the inner conductor; inserting the sleeve into the inner hole of the shell to ensure that the lower side of the inner conductor is opposite to the threaded hole of the antenna body; rotating the assembling and disassembling tool to screw the inner conductor into the threaded hole of the antenna body; the air charging and discharging unit is used for discharging air to the annular air chamber of the rubber claw, the plurality of bulges on the annular air chamber shrink, and the inner conductor is loosened; taking out the assembling and disassembling tool;

the step of dismantling the inner conductor is: inserting the sleeve into the inner bore of the housing; inflating the annular air chamber of the rubber claw by using the inflation and deflation unit, and expanding a plurality of bulges on the annular air chamber and clamping the inner conductor; rotating the assembling and disassembling tool to screw the inner conductor out of the threaded hole of the antenna body; taking out the assembling and disassembling tool, and simultaneously taking out the inner conductors; the air charging and discharging unit is used for discharging air to the annular air chamber of the rubber claw, the plurality of bulges on the annular air chamber shrink, and the inner conductor is loosened.

The invention has the beneficial effects that:

Drawings

FIG. 1 is a schematic view of the present invention in use;

fig. 2 is a partial structure schematic diagram of an N-type radio frequency coaxial connector part of an antenna product;

fig. 3 is a schematic structural diagram of an inner conductor in an N-type rf coaxial connector;

fig. 4 is a schematic structural diagram of a housing in the N-type radio frequency coaxial connector;

FIG. 5 is a schematic view showing the mounting structure of the present invention after the sleeve and the cylinder are half-sectioned;

FIG. 6 is a partial block diagram of the present invention;

FIG. 7 is a schematic structural view of the sleeve;

FIG. 8 is a schematic view of a half-section of the sleeve;

FIG. 9 is a schematic view of the construction of the cartridge;

FIG. 10 is a schematic view of a half-section of the cartridge;

FIG. 11 is a schematic structural view of a push rod;

FIG. 12 is a schematic view of a half-section of the push rod;

FIG. 13 is a schematic structural view of a spacing post;

FIG. 14 is a schematic view of a spring structure;

FIG. 15 is a schematic view of a rubber claw structure;

FIG. 16 is a schematic view of a half-section structure of a rubber claw;

FIG. 17 is a schematic view of the construction of the seal ring;

FIG. 18 is a schematic view of a partially cut-away construction of the seal ring;

in the figure: 1-a sleeve; 2-an air cylinder; 3-a push rod; 4-a limiting column; 5-a spring; 6-rubber claws; 7-sealing ring; 8-a housing; 9-an inner conductor; 10-mounting a plate; 11-antenna body.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

As shown in fig. 2 to 4, the N-type rf coaxial connector of the antenna product includes two parts, namely a housing 8 and an inner conductor 9, wherein the housing 8 is mounted on a mounting plate 10 of the antenna, and the inner conductor 9 is mounted on an antenna body 11 through threads. In order to enable the antenna to reach the optimal electrical performance index, continuous debugging is needed, and the debugging content comprises the steps of wire returning of the inner conductor 9, replacement of the inner conductor 9, addition of a metal gasket on the mounting surface of the shell 8, replacement of the shell 8 and the like. The N-type radio frequency coaxial connector is compact in structure, the outer diameter of the inner conductor 9 is only 3mm, and the diameter of the inner hole of the shell 8 is only 7mm.

As shown in fig. 1, 5 and 6, the handling tool of the present invention comprises a sleeve 1, a rubber claw 6, an air cylinder 2, a push rod 3, a seal ring 7, two limit posts 4 and two springs 5.

As shown in fig. 7 and 8, the sleeve 1 is T-shaped, the upper end is a circular flange, and a plurality of through holes are uniformly distributed. The lower end of the sleeve 1 is a hollow cylinder, and the shape of the sleeve 1 is matched with an inner hole of a shell 8 of the N-type radio frequency coaxial connector. The lower side of the sleeve 1 is provided with a circle of annular groove, and the inner side of the annular groove is matched with the outer diameter of an inner conductor 9 of the N-type radio frequency coaxial connector. The outer edge of the lower end of the sleeve 1 and the inner hole edge are both rounded, so that firstly, the guide is realized, and secondly, the shell 8 or the inner conductor 9 is prevented from being scratched in use.

As shown in fig. 15 and 16, the rubber claw 6 is cylindrical in shape, made of rubber, and has a certain elasticity. The upper end of the rubber claw 6 is an inverted T-shaped cavity. The lower end of the rubber claw 6 is cylindrical and can be placed in an annular groove at the lower side of the sleeve 1. An annular air chamber is arranged in the rubber claw 6 and communicated with the inverted T-shaped cavity at the upper end, and a plurality of inward bulges are arranged in the annular air chamber. When air in the annular air chamber is sucked away to form negative pressure, the inward bulges shrink; when air is pressed into the annular air chamber to form positive pressure, the inward bulges expand to achieve the clamping effect. The rubber claw 6 is manufactured by adopting a die-sinking injection molding mode, a meltable air chamber core is embedded in advance, and the air chamber core is melted to form an air chamber after the injection molding is finished.

As shown in fig. 9 and 10, the lower side of the air cylinder 2 is an inverted T-shaped boss, and the rubber claw 6 has elasticity and can be installed in an inverted T-shaped cavity at the upper end of the rubber claw 6 and sealed by applying glue. The lower end of the inflator 2 is a circular flange, a plurality of threaded holes are uniformly distributed, the threaded holes are matched with a plurality of through holes of the circular flange at the upper end of the sleeve 1, and the threaded holes can be fastened together by screws. The upper end of the inflator 2 is a rectangular flange, and through holes are formed in two sides of the rectangular flange. The air cylinder 2 is of a hollow structure.

As shown in fig. 11 and 12, the upper end of the push rod 3 is a rectangular flange, and through holes are formed on two sides. The lower end of the push rod 3 is a cylinder which is matched with the inner cavity of the air cylinder 2 and can move along the inner cavity of the air cylinder 2. The lower end of the push rod 3 is provided with a semicircular ring groove, and the end part of the push rod is provided with a chamfer.

As shown in fig. 17 and 18, the seal ring 7 is made of silicon rubber and has a circular cross section. The sealing ring 7 can be arranged in a semicircular ring groove at the lower end of the push rod 3 to play a role in air tightness.

As shown in fig. 13, the limiting column 4 is T-shaped and passes through holes on two sides of the rectangular flange of the push rod 3. The lower end of the limit post 4 is provided with a threaded hole and is fastened with a rectangular flange at the upper end of the air cylinder 2 through a screw.

As shown in fig. 14, the spring 5 is a compression spring wound around the outer side of the stopper post 4. When the push rod 3 is pressed down, the spring 5 is compressed; when the pushing force applied to the push rod 3 is stopped, the push rod 3 is pushed back to the original position by the resilient force.

As shown in fig. 1, 5, and 6, the steps of mounting the inner conductor 9 are as follows:

s1: the inner conductor 9 is inserted into the sleeve 1.

S2: the push rod 3 is pressed down by fingers, so that the air pressure in the annular air chamber of the rubber claw 6 is increased, and a plurality of bulges on the annular air chamber expand to form clamping force on the inner conductor 9. While the spring 5 is compressed.

S3: the sleeve 1 is inserted into the inner hole of the shell 8, and the inner side of the annular groove is matched with the outer diameter of the inner conductor 9 due to the fact that the shape of the sleeve 1 is matched with the inner hole of the shell 8, and the lower side of the inner conductor 9 can be guaranteed to be opposite to a threaded hole of the antenna body 11.

S4: the attaching and detaching tool is rotated to screw the inner conductor 9 into the screw hole of the antenna body 11.

S5: the fingers are loosened, and the push rod 3 moves upwards under the action of the resilience force of the spring 5 until the push rod is blocked by the limiting column 4. After the push rod 3 moves upwards, the air pressure in the annular air chamber of the rubber claw 6 is reduced, a plurality of bulges on the annular air chamber are contracted into an initial state, and the inner conductor 9 is loosened.

S6: the handling tool is taken out.

The steps of disassembling the inner conductor 9 are as follows:

s1: will sleeve 1 inserts 8 holes of shell, because of sleeve 1 appearance and 8 hole phase-matchs in the shell, the annular groove inboard and the outer diameter phase-match of inner conductor 9 can guarantee that inner conductor 9 inserts smoothly sleeve 1.

S2: the push rod 3 is pressed down by fingers, so that the air pressure in the air chamber of the rubber claw 6 is increased, and a plurality of bulges on the air chamber expand to form clamping force on the inner conductor 9. While the spring 5 is compressed.

S3: the attaching and detaching tool is rotated to screw the inner conductor 9 out of the screw hole of the antenna body 11.

S4: the loading and unloading tool is taken out, and the inner conductor 9 is simultaneously taken out.

S5: when the fingers are loosened, the push rod 3 moves upwards under the action of the resilience force of the spring 5 until the push rod is blocked by the limiting column 4. After the push rod 3 moves upwards, the air pressure in the annular air chamber of the rubber claw 6 is reduced, a plurality of bulges on the annular air chamber are contracted into an initial state, and the inner conductor 9 is loosened.

The present invention is not limited to the above-mentioned alternative embodiments, and any other various products can be obtained by anyone in the light of the present invention, but any changes in the shape or structure thereof, all of which fall within the scope of the present invention, fall within the protection scope of the present invention.

Claims

1. The utility model provides a N type radio frequency coaxial connector inner conductor air cavity formula handling instrument which characterized in that: including sleeve (1), install rubber claw (6) that are used for centre gripping inner conductor (9) in sleeve (1), be equipped with annular air chamber in rubber claw (6), the inner wall of annular air chamber is provided with a plurality of archs, and the upper end of rubber claw (6) is connected with fills the gassing unit, fills gassing unit and annular air chamber intercommunication.

2. The N-type rf coaxial connector inner conductor air cavity handling tool of claim 1, wherein: an annular groove is formed in the lower end of the sleeve (1), and the lower end of the rubber claw (6) is arranged in the annular groove of the sleeve (1).

3. The N-type rf coaxial connector inner conductor air cavity handling tool of claim 2, wherein: the outer wall of the sleeve (1) is matched with an inner hole of a shell (8) of the N-type radio frequency coaxial connector, and the inner wall of the annular groove is matched with the outer diameter of an inner conductor (9) of the N-type radio frequency coaxial connector.

4. The N-type rf coaxial connector inner conductor air cavity handling tool of claim 1, wherein: the inflation and deflation unit comprises an air cylinder (2), one end of the air cylinder (2) is connected with the rubber claw (6), the inner cavity of the air cylinder (2) is communicated with the annular air chamber of the rubber claw (6), and the push rod (3) is inserted into the other end of the air cylinder (2).

5. The N-type radio frequency coaxial connector inner conductor air cavity type handling tool of claim 4, wherein: the upper end of the rubber claw (6) is provided with an inverted T-shaped cavity, the lower end of the air cylinder (2) is provided with an inverted T-shaped boss, the T-shaped boss is installed in the T-shaped cavity, and the T-shaped boss is of a hollow structure.

6. The N-type radio frequency coaxial connector inner conductor air cavity type handling tool of claim 4, wherein: the lower end of the air cylinder (2) is provided with a flange, the upper end of the sleeve (1) is provided with a flange, and the flange at the upper end of the sleeve (1) is connected with the flange at the lower end of the air cylinder (2).

7. The N-type radio frequency coaxial connector inner conductor air cavity type handling tool of claim 4, wherein: a sealing ring (7) is arranged between the push rod (3) and the air cylinder (2).

8. The N-type radio frequency coaxial connector inner conductor air cavity type handling tool of claim 4, wherein: the upper end of the inflator (2) is provided with a flange, the upper end of the push rod (3) is provided with a flange, and a limit column (4) is sleeved between the flange at the upper end of the inflator (2) and the flange at the upper end of the push rod (3).

9. The N-type rf coaxial connector inner conductor air cavity handling tool of claim 8, wherein: the limiting column (4) is sleeved with a spring (5), and the spring (5) is located between a flange at the upper end of the air cylinder (2) and a flange at the upper end of the push rod (3).

10. An N-type rf coaxial connector inner conductor air cavity loading and unloading method using the loading and unloading tool of claim 1, wherein: the method comprises the following steps:

the step of installing the inner conductor (9) is: inserting the inner conductor (9) into the sleeve (1), inflating an annular air chamber of the rubber claw (6) by using an inflation and deflation unit, and expanding a plurality of bulges on the annular air chamber and clamping the inner conductor (9); the sleeve (1) is inserted into an inner hole of the shell (8), so that the lower side of the inner conductor (9) is opposite to a threaded hole of the antenna body (11); a rotary handling tool for screwing the inner conductor (9) into the screw hole of the antenna body (11); the air charging and discharging unit is used for discharging air to the annular air chamber of the rubber claw (6), the plurality of bulges on the annular air chamber shrink, and the inner conductor (9) is loosened; taking out the assembling and disassembling tool;

the steps of disassembling the inner conductor (9) are: inserting the sleeve (1) into the inner hole of the shell (8); inflating an annular air chamber of the rubber claw (6) by using an inflation and deflation unit, wherein a plurality of bulges on the annular air chamber expand and clamp the inner conductor (9); rotating the attaching/detaching tool to screw out the inner conductor (9) from the screw hole of the antenna body (11); taking out the handling tool and simultaneously taking out the inner conductors (9); the air charging and discharging unit is used for discharging air to the annular air chamber of the rubber claw (6), the plurality of bulges on the annular air chamber shrink, and the inner conductor (9) is loosened.