CN210041766U

CN210041766U - Can prevent changeing miniaturized bushing type GPS amplifier

Info

Publication number: CN210041766U
Application number: CN201920585532.4U
Authority: CN
Inventors: 肖洁; 黄锦军; 黄娅; 徐经; 彭蛟
Original assignee: Tongyu Communication Inc
Current assignee: Tongyu Communication Inc
Priority date: 2019-04-26
Filing date: 2019-04-26
Publication date: 2020-02-07
Anticipated expiration: 2029-04-26

Abstract

A waterproof anti-rotation miniaturized sleeve type GPS amplifier comprises a sleeve and an amplifier body arranged in the sleeve, wherein the input end and the output end of two ends of the amplifier body are respectively and electrically connected with a connector used for connecting a cable; the sleeve pipe is made by the section bar, and sheathed tube inner chamber cross-section is waist shape or polygon and is used for spacingly, is equipped with the space of installation waterproof gasket between connector and the sleeve pipe, and two connectors are through a fastening nut and spacing flange with nut screw thread matched with, with sleeve pipe locking between two connectors, when this amplifier has waterproof function, twist reverse and torsion too big junction bursts apart during the installation.

Description

Can prevent changeing miniaturized bushing type GPS amplifier

Technical Field

The utility model relates to an amplifier technical field, what specifically say so can be waterproof prevent changeing miniaturized bushing type GPS amplifier.

Background

The prior art is as follows: patent 200920271683.9 discloses an amplifier which in use finds the following problems:

1. at present, as shown in fig. 1, the sleeve type GPS amplifier is directly in hard fit with the cylindrical pipe sleeve, so that the waterproof problem cannot be solved, and the existing waterproof structure is formed by winding a waterproof adhesive tape and coating silica gel, which is easy to cause leakage in the practical process.

2. As shown in figure 1, the rotation-proof mode is only a mode of adopting a buckle among the upper blocking part, the connector and the cylindrical pipe sleeve, and in the practical use process of the product, if a larger torsion force is generated between the two connectors, the buckle can be broken, and the connector is easily damaged during installation.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a can be waterproof prevent changeing miniaturized bushing type GPS amplifier when having waterproof function, twists reverse and torsion too big junction collapses absolutely during preventing the installation.

In order to realize the technical purpose, the adopted technical scheme is as follows: a waterproof anti-rotation miniaturized sleeve type GPS amplifier comprises a sleeve and an amplifier body arranged in the sleeve, wherein the input end and the output end of two ends of the amplifier body are respectively and electrically connected with a connector used for connecting a cable;

the sleeve is made of sectional materials, the section of the inner cavity of the sleeve is waist-shaped or polygonal, and two end ports of the inner cavity of the sleeve are provided with an annular groove;

the connector stretch into the intraductal one end shape of cover and sheathed tube inner chamber clearance fit, the one of them connector that stretches into the cover is served and has been seted up waterproof annular groove, the annular space endotheca that waterproof annular groove and annular groove enclose is equipped with waterproof packing ring, one of them connector that two connectors lie in the cover outside of tubes serves and all is equipped with the nut screw thread, another connector lies in the cover outside of tubes and serves and be equipped with flange, two connectors through one with nut screw thread matched with fastening nut and flange, lock the sleeve pipe between two connectors.

The bottom surface of the annular groove is an annular stress surface with inclination.

The amplifier body comprises a PCB assembly and a metal stress plate, the PCB assembly is fixed above the metal stress plate, and two ends of the PCB assembly and the metal stress plate are connected with the connector through screws.

The fastening nut is a knurled nut or a hexagonal nut.

The size of the limiting flange is larger than that of the sleeve.

The utility model has the advantages that: the utility model discloses solved the waterproof problem of product completely and prevented changeing the problem, solved waterproof problem and for adopting increase the annular groove on with two connectors, install waterproof packing ring, go out annular groove with section bar sleeve pipe both ends car again, waterproof packing ring is through the annular groove interference extrusion on the annular stress surface that receives the section bar casing and the connector waterproof. The anti-rotation problem is solved by designing an outer shell into a profile extrusion mode with a waist-shaped hole or a polygonal hole in the middle for processing, designing the parts of the two end connectors, which are arranged in the shell, into waist-shaped holes or polygonal holes, which are about 0.1mm smaller than the inner cavity of the sleeve, performing clearance fit, limiting after the connector and the sleeve are assembled, and preventing axial rotation, thereby playing the anti-rotation role.

Drawings

Fig. 1 is an exploded view of the present invention;

FIG. 2 is a component diagram of the present invention;

fig. 3 is a cross-sectional view of the present invention;

fig. 4 is a cross-sectional view of the present invention;

FIG. 5 is a structural view of the bushing of the present invention;

fig. 6 is a schematic view of the finished product of the present invention;

FIG. 7 is a schematic diagram of a prior art configuration;

in the figure: 1. the device comprises a fastening nut, 2, a sleeve, 3, a connector, 4, a waterproof gasket, 5, a PCB assembly, 6, a screw, 7, a connector, 8, a nut thread, 9, a waterproof annular groove, 10, a metal stress plate, 11, a metal stress plate mounting surface, 12, an annular groove, 13, an annular stress surface, 14, an amplifier body, 15, a limiting flange, 16, a welding point, 17, a cylindrical pipe sleeve, 18 and an upper blocking part.

Detailed Description

The utility model provides a can be waterproof prevent changeing miniaturized bushing type GPS amplifier, includes sleeve pipe 2 and installs the amplifier body 14 in sleeve pipe 2, and the input and the output at the both ends of amplifier body 14 are connected a connector that is used for connecting the cable of electricity respectively, and the sleeve pipe is a tube-shape pipe box, and the connector adopts waterproof anti-rotation structure to fix at the both ends of section bar casing. The section bar shell is designed into a cylindrical structure, and the connectors are fixed at two ends of the section bar shell, so that the product is axially connected in the cable to form a part of the cable, the fixing on a fixture is not needed, and meanwhile, the wiring in the pipeline can be very convenient.

The sleeve 2 is made of sectional materials, the section of the inner cavity of the sleeve 2 is waist-shaped or polygonal, the waist-shaped or polygonal section has the function of preventing torsion, two end ports of the inner cavity of the sleeve 2 are provided with an annular groove 12, and the annular groove 12 is turned into an annular groove with an opening at one side from the end part of the sleeve 2; the one end shape that stretches into in the sleeve pipe 2 of connector and sleeve pipe 2's inner chamber clearance fit, the connector stretch into one of the sleeve pipe 2 in serve and seted up waterproof annular groove 9, the annular space endotheca that waterproof annular groove 9 and annular groove 12 enclose is equipped with waterproof packing ring 4, one of them connector of two connectors is located sleeve pipe 2 outer one and serves and all is equipped with nut screw thread 8, another connector is located sleeve pipe 2 outer one and serves and be equipped with flange 15, two connectors are through one with nut screw thread 8 matched with fastening nut 1 and flange 15, lock sleeve pipe 2 between two connectors, even sleeve pipe 2's one end terminal surface compresses tightly on flange 15, the other end terminal surface compresses tightly on fastening nut 1.

The bottom surface of annular groove 12 is the annular stress surface 13 of taking the inclination, and this plane of taking the inclination, the waterproof effect of satisfying waterproof gasket that can be better, after waterproof gasket installs, enables waterproof gasket and annular groove 12's bottom surface and more laminates.

The amplifier body 14 comprises a PCB assembly 5 and a metal stress plate 10, wherein the PCB assembly 5 is fixed above the metal stress plate 10, and two ends of the PCB assembly 5 and the metal stress plate 10 are connected with the connector through screws. The structure is convenient for installation and does not hinder the realization of the anti-twisting function.

The fastening nut 1 is a knurled nut or a hexagonal nut, or a nut with an end structure with parallel surfaces is adopted, and a wrench or a tool is conveniently adopted for fastening.

The size of the limiting flange 15 is larger than that of the sleeve 2, so that the limiting can be better carried out when the nut is locked.

The profile of a connector will be smaller than the through-hole of the profile sleeve, so that the assembled semi-finished product can be inserted into the sleeve.

In the specific implementation mode, referring to fig. 1, a PCB assembly 5 and a metal stress plate 11 are aligned and attached, the attached assembly is fastened to the metal stress plate mounting surface 11 of two connectors 3 and 7 by screws 6, then inner cores of the connectors 3 and 7 and the PCB assembly 5 are welded, and then a waterproof gasket of the connector 7 is sleeved on the waterproof gasket, so that the assembly is completed as shown in fig. 2. After the part is finished, firstly debugging and testing electrical performance parameters, then inserting the assembly which is used for debugging and testing and is shown in figure 2 into the waist-shaped through hole of the profile sleeve by taking the connector 3 as an initial direction, installing a waterproof gasket 4 on a waterproof annular groove 9 of the connector 3 after the assembly is inserted into the bottom, and then twisting the fastening nut 1 into a nut thread 8 of the connector 3, namely finishing the assembly of the finished product. The tension which needs to be borne when the fastening nut is locked is borne by connecting the two connectors by using the metal stress plate and the limiting flange 15 of the connector 7 as a stop position. Fig. 3 is a sectional view of the finished product, and as seen from the section, the waterproof gaskets at two ends are extruded by the annular stress surface of the profile sleeve, the waterproof annular groove 9 of the connector and the fastening nut 1, so that the O-shaped waterproof gasket meets the requirements of IP67 waterproof filling rate and compression amount, and the waterproof grade of the product reaches IP 67. Fig. 4 is a sectional view of the rotation-preventing part of the utility model, from which it can be seen that the rotation-preventing part adopts the waist-shaped hole rotation-limiting measure, and the parts of the two-end connectors inserted into the through holes of the section bar sleeve are all matched, so as to solve the problem of insufficient strength of the buckle type scheme adopted by the existing scheme. Fig. 5 is the structure diagram of the section bar sleeve, the waist-shaped anti-rotation limiting through hole in the middle can be clearly seen in the diagram, the two sides are the annular stress surfaces of the waterproof gasket formed by lathing, and the lateral inclination of the surface is processed, so that the installation of the waterproof gasket is facilitated, and the waterproof effect is better.

Claims

1. The utility model provides a can be waterproof prevent changeing miniaturized bushing type GPS amplifier, includes bushing (2) and installs amplifier body (14) in bushing (2), the input and the output at the both ends of amplifier body (14) are connected a connector that is used for connecting cable, its characterized in that respectively:

the sleeve (2) is made of sectional materials, the section of the inner cavity of the sleeve (2) is waist-shaped or polygonal, and two end openings of the inner cavity of the sleeve (2) are provided with an annular groove (12);

the connector stretch into the inner chamber clearance fit of the one end shape in sleeve pipe (2) and sleeve pipe (2), the connector stretch into one of the sleeve pipe (2) and serve and seted up waterproof annular groove (9), waterproof annular groove (9) and annular groove (12) enclose the annular space endotheca be equipped with waterproof packing ring (4), one of them connector of two connectors is located sleeve pipe (2) outer one and serves and all is equipped with nut screw thread (8), another connector is located sleeve pipe (2) outer one and serves and be equipped with flange (15), two connectors are through one with nut screw thread (8) matched with fastening nut (1) and flange (15), with sleeve pipe (2) locking between two connectors.

2. The waterproof rotation-proof miniaturized sleeve-type GPS amplifier according to claim 1, wherein: the bottom surface of the annular groove (12) is an annular stress surface (13) with inclination.

3. The waterproof rotation-proof miniaturized sleeve-type GPS amplifier according to claim 1, wherein: the amplifier body (14) comprises a PCB assembly (5) and a metal stress plate (10), the PCB assembly (5) is fixed above the metal stress plate (10), and two ends of the PCB assembly (5) and the metal stress plate (10) are connected with the connector through screws.

4. The waterproof rotation-proof miniaturized sleeve-type GPS amplifier according to claim 1, wherein: the fastening nut (1) is a knurled nut or a hexagonal nut.

5. The waterproof rotation-proof miniaturized sleeve-type GPS amplifier according to claim 1, wherein: the size of the limiting flange (15) is larger than that of the sleeve (2).