CN214446078U

CN214446078U - Tool for installing aviation flow control valve clamp spring

Info

Publication number: CN214446078U
Application number: CN202120607516.8U
Authority: CN
Inventors: 史世杰; 刘彬; 尹国华; 黎晓建
Original assignee: Beijing Andawell Mechanical Maintenance Co ltd
Current assignee: Beijing Andawell Mechanical Maintenance Co ltd
Priority date: 2021-03-25
Filing date: 2021-03-25
Publication date: 2021-10-22
Anticipated expiration: 2031-03-25

Abstract

The utility model relates to a jump ring mounting tool technical field discloses an instrument for installing aviation flow control valve jump ring, including briquetting and two fixed pins, the briquetting is equipped with a first through-hole and two fixed pin through-holes, and two fixed pins correspond respectively and pass two fixed pin through-holes, and the briquetting is including consecutive first briquetting, second briquetting and third briquetting, and the diameter of axle of first briquetting is greater than the diameter of axle of second briquetting, and the diameter of axle of second briquetting is greater than the diameter of axle of third briquetting, first briquetting, second briquetting and third briquetting are passed in proper order to first through-hole, and first briquetting and second briquetting are passed in proper order to the fixed pin through-hole, and two fixed pins are connected with two jump ring holes of jump ring respectively, and two fixed pins are used for contracting and fix the jump ring. The utility model discloses safe and reliable just does not damage aviation flow control valve part, has not only optimized maintenance production technology, has eliminated the uncontrollable factor of human error, has improved production maintenance efficiency moreover.

Description

Tool for installing aviation flow control valve clamp spring

Technical Field

The utility model relates to a jump ring mounting tool technical field specifically relates to an instrument for installing aviation flow control valve jump ring.

Background

The disassembly and assembly of the contraction type clamp spring generally uses clamp spring pliers, a flat head screwdriver or bench clamp. When the clamp spring pliers are used, the clamp spring pliers are placed in the clamp spring holes, the clamp spring pliers are contracted, and the clamp springs are taken out or the clamp rings are assembled in place. When the flat-head screwdriver is used, the inner side of the clamp spring is pried out gradually from the edge of the clamp spring to be detached, and the clamp spring is pressed by the flat-head screwdriver until the clamp spring is firmly installed in the holding groove. When the bench clamp is used, the clamp spring is clamped by the bench clamp, and then the shaft fitting piece is pressed in. The three methods are universal methods for disassembling and assembling the contraction type clamp spring. However, the installation of the clamp spring of the aviation flow control valve cannot be guaranteed based on the prior art. During the assembly process of the housing assembly of the aviation flow control valve (PN1806XX), a compression spring is required to be installed in a bearing hole and fixed in the hole by a clamp spring, because the compression spring has load elasticity during pressing, and the hole diameter for installing the compression spring is limited. Therefore, it is very difficult to install the snap spring and fix the compression spring in place by using the common snap spring pliers on the market, the snap spring is easy to install in the process of overcoming the elastic force in the installation process, the snap spring is difficult to install in the snap spring groove at one time, and the snap spring pliers can scratch the shell assembly of the flow control valve (PN1806XX) due to the fact that force is needed and the snap spring pliers are slightly biased in the installation process.

SUMMERY OF THE UTILITY MODEL

The utility model provides an instrument for installing aviation flow control valve jump ring to solve prior art's above-mentioned problem.

The utility model provides a tool for installing aviation flow control valve jump ring, including briquetting (1) and two fixed pins, briquetting (1) is equipped with a first through-hole and two fixed pin through-holes, two fixed pins correspond respectively and pass two fixed pin through-holes, briquetting (1) includes consecutive first briquetting (1-1), second briquetting (1-2) and third briquetting (1-3), the shaft diameter of first briquetting (1-1) is greater than the shaft diameter of second briquetting (1-2), the shaft diameter of second briquetting (1-2) is greater than the shaft diameter of third briquetting (1-3), first through-hole passes first briquetting (1-1), second briquetting (1-2) and third briquetting (1-3) in proper order, the fixed pin through-hole passes first briquetting (1-1) and second briquetting (1-2) in proper order, the two fixing pins are respectively connected with two clamp spring holes of the clamp spring and used for contracting and fixing the clamp spring.

Furthermore, the outer diameter of the contracted clamp spring is smaller than the diameter of a bearing hole of the aviation flow control valve, the inner diameter of the contracted clamp spring is larger than the outer diameter of the third pressing block (1-3), and the outer diameter of the first pressing block (1-1) is larger than the diameter of the bearing hole of the aviation flow control valve; the outer diameter of the second pressing block (1-2) is smaller than the diameter of a bearing hole of the aviation flow control valve.

Further, the fixing pin is L-shaped.

Further, the length of the fixing pin is larger than that of the pressing block (1).

Furthermore, the section size of the fixing pin is matched with the size of the clamp spring hole.

The utility model has the advantages that: the utility model discloses an instrument for installing aviation flow control valve jump ring not only has the function of direction and location, still has the function of contracting the jump ring on the instrument, safe and reliable just does not damage aviation flow control valve part, the utility model discloses optimize maintenance production technology, eliminated the uncontrollable factor of human error. The production maintenance efficiency is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed to be used in the embodiments are briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural view of a tool for installing an aviation flow control valve snap spring provided in the first embodiment.

Fig. 2 is a schematic cross-sectional structure view of a tool for installing an aviation flow control valve snap spring provided in this embodiment.

Fig. 3 is a schematic view of a fixing pin structure according to the first embodiment.

Fig. 4 is a schematic diagram of a position of the snap spring when the snap spring is installed according to the first embodiment.

Fig. 5 is a schematic diagram of a position of the snap spring when the snap spring is installed according to the first embodiment.

Fig. 6 is a schematic diagram of a position of the snap spring when the snap spring is installed according to the first embodiment.

1. The device comprises a pressing block, 2, a fixing pin, 3, a first through hole, 4, a fixing pin through hole, 5, a clamp spring, 1-1, a first pressing block, 1-2, a second pressing block, 1-3 and a third pressing block.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the invention, are given by way of illustration only. It is noted that the terms "comprises" and "comprising," and any variations thereof, in the description and claims of the present invention and the above-described drawings are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of elements is not necessarily limited to those elements, but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Embodiment one, a tool for installing an aviation flow control valve snap spring, as shown in fig. 1 and fig. 2, comprises a press block 1 and two fixing pins 2, the press block 1 is provided with a first through hole 3 and two fixing pin through holes 4, the two fixing pins 2 respectively and correspondingly penetrate through the two fixing pin through holes 4, the press block 1 comprises a first press block 1-1, a second press block 1-2 and a third press block 1-3 which are sequentially connected, the shaft diameter of the first press block 1-1 is larger than that of the second press block 1-2, the shaft diameter of the second press block 1-2 is larger than that of the third press block 1-3, the first through hole sequentially penetrates through the first press block 1-1, the second press block 1-2 and the third press block 1-3, the fixing pin through holes sequentially penetrate through the first press block 1-1 and the second press block 1-2, the two fixing pins are respectively connected with two snap spring holes of the snap spring, the two fixing pins are used for contracting and fixing the clamp spring 5. The fixing pin is L-shaped (see fig. 3).

The outer diameter of the contracted clamp spring is smaller than the diameter of a bearing hole of the aviation flow control valve, the inner diameter of the contracted clamp spring is larger than the outer diameter of the third pressing block 1-3, and the outer diameter of the first pressing block 1-1 is larger than the diameter of the bearing hole of the aviation flow control valve; the outer diameter of the second pressure block 1-2 is smaller than the diameter of a bearing hole of the aviation flow control valve.

The length of the fixing pin is larger than that of the pressing block 1, the length of the fixing pin is long enough, the fixing pin is made of tool steel, and the strength and the toughness of the fixing pin are guaranteed. The material of the pressing block 1 is hard alloy aluminum, the hardness of the pressing block 1 is reduced as much as possible while the strength of the pressing block 1 is ensured, the pressing block 1 is prevented from damaging parts when in use, and the section size of the fixing pin is matched with the size of the clamp spring hole.

Utilize the utility model discloses the principle of installation jump ring as follows:

respectively installing two fixing pins into two clamp spring holes of a clamp spring 5, and installing the clamp spring at the tail ends of the two fixing pins (see figure 4); the clamp spring is pushed to the end face 1-4 (see fig. 5), the clamp spring is required to be horizontally installed on the end face 1-4 and attached to the end face 1-4 when the clamp spring is installed, the third pressing block 1-3 is used for penetrating through the inner diameter of the clamp spring to play a guiding role (namely, the compression spring is prevented from deviating when the compression spring is pressed in the clamp spring installation process), and then the tail ends of the two fixing pins are flush with the end face of the clamp spring (see fig. 6); and then installing the clamp spring into a bearing hole of the aviation flow control valve.

Through adopting the utility model discloses an above-mentioned technical scheme has obtained following profitable effect:

the utility model discloses an instrument for installing aviation flow control valve jump ring not only has the function of direction and location, still has the function of contracting the jump ring on the instrument, safe and reliable just does not damage aviation flow control valve part, the utility model discloses optimize maintenance production technology, eliminated the uncontrollable factor of human error. The production maintenance efficiency is improved.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be viewed as the protection scope of the present invention.

Claims

1. The tool for installing the clamp spring of the aviation flow control valve is characterized by comprising a pressing block (1) and two fixing pins, wherein the pressing block (1) is provided with a first through hole and two fixing pin through holes, the two fixing pins correspondingly penetrate the two fixing pin through holes respectively, the pressing block (1) comprises a first pressing block (1-1), a second pressing block (1-2) and a third pressing block (1-3) which are sequentially connected, the shaft diameter of the first pressing block (1-1) is larger than that of the second pressing block (1-2), the shaft diameter of the second pressing block (1-2) is larger than that of the third pressing block (1-3), the first through hole sequentially penetrates through the first pressing block (1-1), the second pressing block (1-2) and the third pressing block (1-3), the fixing pin through holes sequentially penetrate through the first pressing block (1-1) and the second pressing block (1-2), the two fixing pins are respectively connected with two clamp spring holes of a clamp spring, and the two fixing pins are used for contracting and fixing the clamp spring.

2. The tool for installing the aerial flow control valve snap spring as claimed in claim 1, wherein the contracted outer diameter of the snap spring is smaller than the diameter of an aerial flow control valve bearing hole, the contracted inner diameter of the snap spring is larger than the outer diameter of the third pressing block (1-3), and the outer diameter of the first pressing block (1-1) is larger than the diameter of the aerial flow control valve bearing hole; the outer diameter of the second pressing block (1-2) is smaller than the diameter of a bearing hole of the aviation flow control valve.

3. A tool for installing an aviation flow control valve circlip as claimed in claim 1 or claim 2 wherein the fixing pin is L-shaped.

4. Tool for installing an aviation flow control valve circlip as claimed in claim 3 wherein the length of the fixing pin is greater than the length of the pressure block (1).

5. The tool for installing the aerial flow control valve snap spring as claimed in claim 4, wherein the cross-sectional size of the fixing pin is adapted to the size of the snap spring hole.