CN212022546U - Installation clamp of earless snap ring - Google Patents

Abstract

The utility model relates to a handle dust cover installation field discloses a mounting fixture of no ear snap ring, and it includes the installation cover, installs the uide bushing in the installation cover, and the middle part of uide bushing is formed with direction passageway, still including being used for carrying out the guiding axle of spacing direction to no ear snap ring, and the guiding axle can slide along direction passageway with the cooperation of direction passageway, and the external diameter of guiding axle from top to bottom reduces gradually. The guide sleeve comprises a plurality of locating pieces, a first elastic piece is arranged between the outer wall of each locating piece and the inner wall of each locating piece, an adjusting gap is reserved between each locating piece and the corresponding mounting sleeve, the locating pieces mutually abut against each other under the action of the first elastic pieces to form a guide channel in the middle, and when the guide shaft moves along the guide channel, the locating pieces act on the first elastic pieces to enable the guide channel to deform in a self-adaptive mode. The clamp has the advantages of simple and reliable assembly, good dust cover assembly effect and the like.

Description

Installation clamp of earless snap ring

Technical Field

The utility model relates to a handle guard shield installation field has especially related to a mounting fixture of no ear snap ring.

Background

A handle is still reserved in the existing automobile control mechanism, and the lower end of the handle is connected with a controller assembly. In order to prevent dust from entering the manipulator assembly and considering the factors of beauty and safety, a dust shield is arranged on the handle, one end of the dust shield is fixedly connected with the handle, and the other end of the dust shield is connected with the manipulator assembly. The prior art has the problem that the dust cover and the handle are fixed together by sewing the connecting lines on the outer side, and although the connecting lines can fix the dust cover and the handle, the appearance is poor and the processing is complex because the connecting lines are on the outer side. On the other hand, if the connection position is provided on the inner side of the dust cover, no special fitting or jig is required for installation, which results in low efficiency and high labor intensity.

Chinese patent 201721426746.4 provides a dust cap securing device that ensures the connection of a dust cap to a handle. However, the dust cover needs to be designed independently, most dust covers in the market cannot be matched, the independent die sinking production cost is high, and the same dust cover is also needed for matching in subsequent maintenance, so the cost is high. And the chucking of device only relies on elastic rubber spare and plastics snap ring to fix, because plastics snap ring and elastic rubber spare can appear ageing phenomenon long-term the use, can not guarantee the reliability of connecting, the assembly is comparatively complicated moreover, and the outward appearance is also simple inadequately.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to current dust cover mounting structure unstable, shortcoming such as installation complicacy provides a dust cover fixing device.

In order to solve the technical problem, the utility model discloses a following technical scheme can solve:

the utility model provides a mounting fixture of no ear snap ring, includes the installation cover, installs the uide bushing in the installation cover, and it has the guiding axle that is used for installing the no ear snap ring of location to peg graft in the uide bushing, and the external diameter of guiding axle from top to bottom reduces gradually, and the guiding axle can slide in the uide bushing, and the in-process of guiding axle downstream, no ear snap ring is contradicted all the time on the uide bushing. The guide shaft is matched with the guide sleeve to ensure that the earless snap ring can uniformly expand, so that the earless snap ring can be stably assembled with the handle after being expanded.

Preferably, the guide sleeve is composed of a plurality of positioning pieces, a first elastic piece is arranged between the outer wall of each positioning piece and the inner wall of each positioning piece, an adjusting gap is reserved between each positioning piece and the corresponding mounting sleeve, and the positioning pieces are enclosed into a closed annular guide sleeve under the action of the first elastic pieces. The installation sleeve is formed by the plurality of positioning pieces, so that the guide shaft can be stably and stably moved, the guide shaft and the positioning pieces can be always abutted, the clamping ring is uniformly stressed, and the undercut and edge clamping phenomenon cannot occur.

As preferred, the lateral surface of spacer is provided with the arc wall, and the arc wall of multi-disc spacer encloses into complete ring channel, and first elastic component is annular spring for whole, and first elastic component clamp is in the ring channel, and the spacer supports each other under the staple bolt of first elastic component and leans on into a whole. The annular elastic piece can ensure that all parts of the positioning piece are stressed simultaneously and move simultaneously, so that the accuracy of guiding and positioning is ensured, and the interference phenomenon among all parts can not occur due to synchronous action.

Preferably, a plurality of groups of arc-shaped grooves which are parallel to each other are arranged on the positioning sheet. The upper portion and the lower portion of the locating piece can be simultaneously stressed by matching the plurality of groups of arc-shaped grooves with the plurality of groups of elastic parts, the whole guide sleeve structure is more stable, the service life is longer, and the phenomenon that the locating piece cannot be stably folded due to the fact that a single spring is aged after long-time work is avoided.

Preferably, the upper end surface of the guide shaft is provided with a sinking groove. The function of heavy groove lies in the location, and during the assembly, the lower extreme of handle is supported in heavy groove.

Preferably, a cavity is arranged on the bottom end face of the sinking groove, a guide hole matched with the guide column is formed in the lower end of the guide shaft, and the guide hole is communicated with the cavity. The penetrating structure can provide enough stroke for the guide shaft, the weight of the whole guide shaft is lighter, and the guide shaft is convenient to operate while saving cost.

Preferably, a limiting hole penetrating through the upper end face and the lower end face of the guide sleeve is formed in the guide sleeve, the guide shaft is inserted into the limiting hole, and the inner diameter of the limiting hole is gradually reduced from top to bottom. The guide sleeve and the guide shaft are also in close fit in the initial state.

Preferably, the guide shaft further comprises a base, the base is fixedly connected with the mounting sleeve, a guide column is fixedly mounted on the base, and a guide hole matched with the guide column is formed in the lower end of the guide shaft. The guide hole and the guide post can prevent the guide shaft from shaking in the left-right direction when moving in the axis direction, so that the stress of all points of the whole circumference of the earless snap ring is uniform.

Preferably, the guide shaft further comprises a second elastic member, the lower end of the second elastic member abuts against the base, and the upper end of the second elastic member abuts against the guide shaft. The second elastic component not only can give certain assembly feel in the pushing process, but also can pop out the guide shaft after the assembly is completed, so that the assembly is convenient for the next time.

Preferably, a support sleeve is installed in the installation sleeve, the lower end of the guide sleeve is seated on the support sleeve, and the guide column is arranged in the support sleeve.

The utility model discloses owing to adopted above technical scheme, have following apparent technological effect:

the scheme designs a new connection mode of the dust cover and the handle according to the characteristics of the dust cover and the existing handle. This scheme adopts no ear snap ring to fix the dust cover, has fixed reliable, and long service life's advantage, the dust cover after no ear snap ring assembly has moreover that the wholeness is good, does not have convex place, and smoothness degree is higher.

And the utility model discloses a no ear snap ring has the assembly simply, assembles reliable advantage, and assembly process is reliable and stable moreover, and assembly efficiency is high, and intensity of labour is little. The technical problems that the earless snap ring does not have a special adaptive tool, deformation is easy to generate in the assembly process to be oval, the expansion process is difficult to keep uniform and the like are solved.

Drawings

FIG. 1 is a schematic view of the overall structure of the handle and mounting clip (without the earless snap ring assembled).

Fig. 2 is a top view of fig. 1.

Fig. 3 is a cross-sectional view of fig. 2 (with the earless snap ring assembled).

Fig. 4 is a schematic structural view of the guide sleeve.

Fig. 5 is a schematic view of the dust cover.

Fig. 6 is a schematic structural view of a earless snap ring.

Fig. 7 is a side view of a earless snap ring.

The names of the parts indicated by the numerical references in the drawings are as follows: 1-installation sleeve, 2-base, 3-installation cavity, 4-guide sleeve, 5-guide channel, 6-guide shaft, 7-positioning shoulder, 8-positioning piece, 9-first elastic piece, 10-adjusting gap, 11-arc groove, 12-ring groove, 13-sink groove, 14-cavity, 15-guide hole, 16-guide post, 17-second elastic piece, 18-supporting sleeve, 19-flange, 20-handle, 21-shaft groove, 22-earless snap ring, 23-opening.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Example 1

The utility model provides an erection fixture of no ear snap ring, includes installation cover 1, installs uide bushing 4 in the installation cover 1, and the middle part of uide bushing 4 is formed with guide way 5, still including being used for carrying out spacing direction's guiding axle 6 to no ear snap ring 22, and guiding axle 6 can slide along guide way 5 with guide way 5 cooperation, and the external diameter of guiding axle 6 from top to bottom reduces gradually. The guide shaft 6 can slide in the guide sleeve 4, and the earless snap ring 22 always props against the guide sleeve 4 in the downward movement process of the guide shaft 6. In this embodiment, anchor clamps still include base 2, and installation cover 1 fixed mounting is on base 2, and the middle part of installation cover 1 forms places the chamber, and uide bushing 4 pegs graft in installation cover 1. In this embodiment, the base 2 is a plate, and the mounting sleeve 1 is fixed on the base 2 by bolts.

In this embodiment, the mounting sleeve 1 is provided with a supporting sleeve 18, the lower end of the guiding sleeve 4 is seated on the supporting sleeve 18, the guiding column 16 is arranged in the supporting sleeve 18, and the guiding column 16 is fixedly connected with the base 2. In the present exemplary embodiment, the mounting sleeve 1, the guide shaft 6 and the guide sleeve 4 are arranged coaxially. Because the internal diameter of no ear snap ring 22 is circular, so the cross section profile of guiding axle 6 also is circular, and the whole appearance of guiding axle 6 is the round platform form, also should belong to the simple deformation of round platform form of course the utility model discloses the protection scope, the focus of guiding axle 6 lies in that there is the round platform part can guarantee that no ear snap ring 22 is stable to rise greatly, can not lead to no ear snap ring 22 to appear unrecoverable deformation and walk the shape.

In the present embodiment, the guide post 16 and the base 2 are connected by interference fit, but may be fixed by other fixing methods such as screw fit. The guide post 16, the support sleeve 18 and the guide shaft 6 are also arranged coaxially in this embodiment.

Since the shaft diameter of the matching part of the guide shaft 6 and the guide sleeve 4 is gradually increased in the downward movement process of the guide shaft 6, the guide sleeve 4 should have a certain self-adjusting capability in order to ensure the tight matching of the guide shaft 6 and the guide sleeve 4. Therefore, in the embodiment, the guide sleeve 4 is composed of a plurality of positioning pieces 8, a first elastic piece 9 is arranged between the outer wall of each positioning piece 8 and the inner wall of each positioning piece 8, an adjusting gap 10 is reserved between each positioning piece 8 and the corresponding mounting sleeve 1, the positioning pieces 8 mutually abut against each other under the action of the first elastic pieces 9 to form the guide channel 5 in the middle, and when the guide shaft 6 moves along the guide channel 5, the positioning pieces 8 act on the first elastic pieces 9 to enable the guide channel 5 to generate self-adaptive deformation. The purpose of self-adaptive deformation is to enable the inner side surface of the guide channel 5 to be always abutted against the guide shaft 6, so that the purpose of positioning and guiding the guide shaft 6 is achieved, and the earless snap ring 22 can be uniformly carried out in the expansion process.

In the present embodiment, the guide sleeve 4 has a cylindrical shape, but may have other shapes, such as a circular truncated cone shape.

The cross section of the guide channel 5 in this embodiment is also gradually reduced from top to bottom so as to be convenient for matching with the guide shaft 6, wherein the inclination of the guide channel 5 is the same as that of the guide shaft 6, and the guide channel 5 always collides against the outer side surface of the guide shaft 6. The lateral surface of spacer 8 is provided with arc wall 11, complete ring channel 12 is enclosed into to the arc wall 11 of multi-disc spacer 8, the axis of ring channel 12 place plane and guide way 5 is perpendicular, first elastic component 9 is annular spring for whole, first elastic component 9 clamp is in ring channel 12, spacer 8 supports each other under the staple bolt of first elastic component 9 and leans on into a whole, it is spacing simultaneously to adopt annular spring to carry out a plurality of spacers 8, thereby can guarantee that 8 atress of each spacer are even, spacer 8's number is 4 in this embodiment.

In order to ensure that all positions of the positioning plate 8 are uniformly stressed, a plurality of groups of arc-shaped grooves 11 which are parallel to each other are arranged on the positioning plate 8. The upper portion and the lower portion of the positioning sheet 8 can be simultaneously stressed by matching the plurality of groups of arc-shaped grooves 11 with the plurality of groups of elastic parts, the whole guide sleeve 4 is more stable in structure and longer in service life, and the phenomenon that the single spring is aged after long-time work is avoided, so that the positioning sheet 8 cannot be stably folded. In this embodiment, the number of the arc-shaped grooves 11 on each positioning plate 8 is two, so that the outer sides of 4 positioning plates 8 enclose 2 groups of annular grooves 12 which are respectively distributed at the upper part and the lower part of the positioning plate 8, and the first elastic member 9 is assembled in each annular groove 12.

A positioning shoulder 7 for positioning the handle 20 is formed on the guide shaft 6, and when the dust cover 30 is assembled, the lower end of the handle 20 abuts against the positioning shoulder 7 and moves synchronously with the guide shaft 6.

In the present embodiment, the positioning shoulder 7 is formed by a sunken groove 13 opened at the upper end of the guide shaft 6, and the bottom surface of the sunken groove 13 is used as the positioning shoulder 7. So that the lower end of the handle 20 abuts against the bottom surface of the sink 13 when assembled. The bottom end face of the sinking groove 13 is provided with a cavity 14, the lower end of the guide shaft 6 is provided with a guide hole 15 matched with the guide post 16, and the guide hole 15 is communicated with the cavity 14. The cavity 14 can not only contain the part of the lower end of the handle 20 extending into the guide shaft 6, but also reduce the weight of the guide shaft 6 and save the cost of the clamp.

The guide hole 15 in this embodiment communicates with the cavity 14, so that the guide shaft 6 has a sufficient stroke for assembly, and the design of the jig is simpler.

In order to ensure a stable springback of the guide shaft 6 after assembly is completed, the clamp further comprises a second elastic member 17. The lower end of the second elastic member 17 abuts against the base 2, and the upper end of the second elastic member 17 abuts against the guide shaft 6. The second elastic piece 17 is compressed when the guide shaft 6 moves downwards, and when the external force is removed, the second elastic piece 17 pushes the guide shaft 6 to move upwards while recovering deformation, so that the guide shaft is separated from the clamping with the positioning piece 8, and the next handle 20 is convenient to assemble.

In this embodiment, the second elastic member 17 is fitted over the guide post 16.

The use of the clamp when assembling is as follows:

turning the dust cover 30 outwards, installing the handle 20 from the inside of the dust cover 30 and abutting against the connecting end of the dust cover 30, wherein an opening 23 is formed in the middle of the connecting end and used for enabling a connecting piece of the lower end face of the handle 20 to penetrate out or expose, then installing the lower end of the handle 20 sleeved with the dust cover 30 into the sinking groove 13, abutting against the positioning shoulder 7 at the lower end of the handle 20, because the dust cover 30 is turned outwards to cover the handle 20, at the moment, the inner side face of the dust cover 30 abuts against the positioning shoulder 7, then sleeving the earless snap ring 22 on the guide shaft 6 or placing the earless snap ring on the upper end face of the guide channel 5, and obviously, the outer diameter of the; then the handle 20 is gripped to press the guide shaft 6 downwards, the guide shaft 6 moves downwards and simultaneously uniformly expands the earless snap ring 22, when the upper end of the guide shaft 6 is flush with the upper end face of the guide sleeve 4 or is arranged at the lower part of the upper end face of the guide sleeve 4, the inner hole of the earless snap ring 22 can be reduced without being supported by foreign objects, at the moment, the shaft groove 21 of the handle 20 just enters the plane where the earless snap ring 22 is located, the earless snap ring 22 is shrunk and clamped in the shaft groove 21 area, namely, clamped on the dust cover 30 on the outer side of the shaft groove 21, therefore, the earless snap ring 22 can stably assemble the dust cover 30 and the handle 20, the earless snap ring 22 can be adjusted by using a large power wrench as required, and then the dust cover 30 is turned back, so that the structure has no connecting seam and connecting trace, is very beautiful and neat in appearance, and is simple to assemble. After the assembly is completed, the second elastic piece 17 ejects the guide shaft 6, so that the assembly of the next workpiece is facilitated. Wherein fig. 5 shows only one structure of the dust cap for easy understanding of the present solution, the structural form of the dust cap may be any shape.

Example 2

This embodiment is different from embodiment 1 in that: the positioning shaft is not provided with a sinking groove 13, and the upper end surface of the guide shaft 6 is used by a positioning shoulder 7.

Example 3

This embodiment is different from embodiment 1 in that: the number of the positioning pieces 8 is 3, and the central angle of each positioning piece 8 is 120 degrees.

In short, the above description is only a preferred embodiment of the present invention, and all the equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the scope of the present invention.

Claims (10)

1. The utility model provides a mounting fixture of no ear snap ring which characterized in that: including installation cover (1), install uide bushing (4) in installation cover (1), the middle part of uide bushing (4) is formed with guide way (5), still including being used for carrying out spacing direction's guiding axle (6) to no ear snap ring (22), guiding axle (6) can slide along guide way (5) with guide way (5) cooperation, and the external diameter of guiding axle (6) from top to bottom reduces gradually.

2. The earless snap ring installation jig of claim 1, wherein: guide sleeve (4) comprise multi-disc spacer (8), be provided with first elastic component (9) between spacer (8) outer wall and spacer (8) inner wall, it has regulation clearance (10) to reserve between spacer (8) and installation cover (1), spacer (8) are contradicted each other under the effect of first elastic component (9) and are formed guide way (5) at the middle part, when guide shaft (6) move along guide way (5), spacer (8) are used in first elastic component (9) and are made guide way (5) take place self-adaptation and warp.

3. The earless snap ring installation jig of claim 2, wherein: the outer ring surface of each positioning sheet (8) is provided with an arc-shaped groove (11), the arc-shaped grooves (11) of the positioning sheets (8) enclose a complete annular groove (12), and the plane of the annular groove (12) is vertical to the axis of the guide channel (5); the first elastic piece (9) is annular as a whole, the first elastic piece (9) is clamped in the annular groove (12), and the positioning pieces (8) are mutually abutted to form a whole under the hoop of the first elastic piece (9).

4. A mounting clip for a earless snap ring, as defined in claim 3, wherein: a plurality of groups of arc-shaped grooves (11) which are parallel to each other are arranged on the positioning sheet (8).

5. The earless snap ring installation jig of claim 1, wherein: a positioning shoulder (7) for positioning the handle (20) is formed on the guide shaft (6).

6. The earless snap ring installation jig of claim 5, wherein: the positioning shoulder (7) is formed by a sinking groove (13) formed in the upper end of the guide shaft (6), a cavity (14) is formed in the bottom end face of the sinking groove (13), a guide hole (15) matched with the guide column (16) is formed in the lower end of the guide shaft (6), and the guide hole (15) is communicated with the cavity (14).

7. A mounting clip for a earless snap ring, as claimed in any one of claims 1 to 6, wherein: the inner diameter of the guide channel (5) is gradually reduced from top to bottom, and the inclination of the guide channel (5) is the same as that of the guide shaft (6).

8. A mounting clip for a earless snap ring, as claimed in any one of claims 1 to 5, wherein: still include base (2), base (2) and installation cover (1) fixed connection, fixed mounting has guide post (16) on base (2), and guide shaft (6) lower extreme is seted up with guide post (16) complex guiding hole (15), and guide shaft (6) accessible guiding hole (15) slide from top to bottom along guide post (16).

9. The earless snap ring installation jig of claim 8, wherein: the device is characterized by further comprising a second elastic piece (17), the lower end of the second elastic piece (17) is abutted against the base (2), and the upper end of the second elastic piece (17) is abutted against the guide shaft (6).

10. The earless snap ring installation jig of claim 9, wherein: a supporting sleeve (18) is installed in the installation sleeve (1), the lower end of the guide sleeve (4) is arranged on the supporting sleeve (18) in a sitting mode, the guide column (16) is arranged in the supporting sleeve (18), and the second elastic piece (17) is sleeved on the guide column (16).

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