CN111283618B - Installation clamp for earless snap ring and installation method for handle dust cover - Google Patents
Installation clamp for earless snap ring and installation method for handle dust cover Download PDFInfo
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- CN111283618B CN111283618B CN201911345362.3A CN201911345362A CN111283618B CN 111283618 B CN111283618 B CN 111283618B CN 201911345362 A CN201911345362 A CN 201911345362A CN 111283618 B CN111283618 B CN 111283618B
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- guide shaft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/0035—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for motor-vehicles
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Abstract
The invention relates to the field of installation of handle dust covers, and discloses an installation clamp for a lug-free snap ring and an installation method of the handle dust cover. The guide sleeve is enclosed by the multi-disc spacer, is provided with first elastic component between spacer outer wall and the installation cover inner wall, reserves between spacer and the installation cover and adjusts the clearance, and the spacer is contradicted each other under the effect of first elastic component and is formed the direction passageway in the middle part, and when the guide shaft moved along the direction passageway, the spacer effect made the direction passageway take place self-adaptation deformation on first elastic component. The clamp has the advantages of simple and reliable assembly, good dust cover assembly effect and the like.
Description
Technical Field
The invention relates to the field of installation of handle shields, in particular to an installation clamp of a lug-free clamping ring and an installation method of a handle dust shield.
Background
The existing automobile, especially the commercial automobile, still has a handle in the 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.
Disclosure of Invention
The invention provides an installation clamp without an ear snap ring and an installation method of a handle dust cover, aiming at the defects that the existing dust cover is difficult to install and has poor appearance after installation.
In order to solve the technical problem, the invention is solved by the following technical scheme:
the installation clamp for the earless snap ring comprises an installation sleeve and a base, wherein an installation cavity for assembly is formed in the middle of the installation sleeve, a guide sleeve is inserted into the installation cavity, a guide channel is formed in the middle of the guide sleeve, the installation clamp further comprises a guide shaft for limiting and guiding the earless snap ring, the guide shaft can be matched with the guide channel to slide along the guide channel, and the outer diameter of the guide shaft is gradually reduced from top to bottom; the upper end of the guide shaft is provided with a positioning shoulder for supporting the handle and the dust cover, the handle drives the dust cover and the guide shaft to slide along the guide channel and gradually expand to cover the earless snap ring on the guide shaft part, and when the guide shaft moves downwards to a position where the guide shaft is separated from the assembly position of the earless snap ring, the earless snap ring falls into the shaft groove; the guide sleeve is enclosed by the multi-disc spacer, is provided with first elastic component between spacer outer wall and the installation cover inner wall, reserves between spacer and the installation cover and adjusts the clearance, and the spacer is contradicted each other under the effect of first elastic component and is formed the direction passageway in the middle part, and when the guiding axle moved along the direction passageway, the spacer effect made the axis cross-section of direction passageway rise greatly or dwindled on first elastic component. 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.
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 the axis that ring channel place plane and guide channel is perpendicular, and first elastic component is cyclic annular 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 installation sleeve has the advantages that the installation sleeve is formed by enclosing 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 phenomena cannot occur. And the annular first elastic piece can ensure that each locating piece can be uniformly stressed and can be expanded and retracted simultaneously.
Preferably, the positioning shoulder is formed by a sinking groove formed in the upper end of the guide shaft, a cavity is formed in the bottom surface of the sinking groove, the lower end face of the handle coated with the dust cover is abutted to the bottom surface of the sinking groove during assembly, parts at the lower end of the handle extend out of the cavity from the opening, a guide hole matched with the guide column is formed in the lower end of the guide shaft, and the guide hole penetrates through the cavity and is communicated with the cavity.
Preferably, the inner diameter of the guide passage is gradually reduced from top to bottom, and the slope of the guide passage is the same as the slope of the guide shaft.
Preferably, the mounting fixture further comprises a base, the base is fixedly connected with the mounting sleeve, a guide post is fixedly mounted on the base, a guide hole matched with the guide post is formed in the lower end of the guide shaft, and the guide shaft can slide up and down along the guide post through the guide hole.
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.
As preferred, install in the installation cover and support the cover, support the cover and contradict with the bottom surface of base, the lower extreme of uide bushing is sat and is established on supporting the cover, and the last border of installation cover is provided with the flange, and the flange is located the last border of installation cavity.
Preferably, the guide shaft and the guide sleeve are copper or copper-plated.
The invention also discloses an installation method of the handle dust cover, which comprises the installation clamp, wherein the dust cover comprises a connecting end connected with the handle, the connecting end is provided with an opening, the diameter of the opening is smaller than that of the lower end face of the handle, a shaft groove used for being assembled with the earless snap ring is arranged on the outer side face of the lower end of the handle, and the outer diameter of the shaft groove is smaller than that of the upper end of the guide shaft; the assembly comprises the following steps:
turning the dustproof protective cover outwards, and enabling the lower end face of the handle to be abutted against the connecting end of the handle, wherein the dustproof protective cover is covered outside the handle;
secondly, abutting the lower end of the handle coated with the dust cover against the positioning shoulder;
step three, sleeving the earless snap ring on the guide shaft or placing the earless snap ring at an opening at the upper end of the guide channel;
step four, the handle and the guide shaft are held by hand, the guide shaft is inserted into the guide channel, and the earless snap ring is clamped with the outer wall of the guide shaft;
step five, the guide shaft is pressed downwards by holding the handle, and the guide shaft moves downwards along the guide post; the guide shaft gradually expands the inner diameter of the guide channel in the downward movement process, and the guide channel always abuts against the outer side surface of the guide shaft; when the upper end of the guide shaft enters the guide channel, the earless snap ring is separated from the support of the guide shaft, becomes small and is clamped at the shaft groove position of the handle;
and step six, turning back the dust cover.
Preferably, the method further comprises a step seven of adjusting the earless snap ring which is not completely embedded into the shaft groove position by using a tool.
Due to the adoption of the technical scheme, the invention has the following remarkable technical effects:
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. The earless snap ring designed by the invention has the advantages of simple assembly, reliable assembly, stable and reliable assembly process, high assembly efficiency and low labor intensity. 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. The installation method has the advantages of simple installation, high assembly efficiency, good assembly effect and the like.
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
A mounting fixture for a lug-free snap ring comprises a mounting sleeve 1 and a base 2, wherein a mounting cavity 3 for assembly is formed in the middle of the mounting sleeve 1, a guide sleeve 4 is inserted into the mounting cavity 3, a guide channel 5 is formed in the middle of the guide sleeve 4, the mounting fixture further comprises a guide shaft 6 for limiting and guiding a lug-free snap ring 22, the guide shaft 6 can be matched with the guide channel 5 to slide along the guide channel 5, and the outer diameter of the guide shaft 6 is gradually reduced from top to bottom; the upper end of the guide shaft 6 is provided with a positioning shoulder 7 for supporting the handle 20 and the dust cover 30, the handle 20 drives the dust cover 30 and the guide shaft 6 to slide along the guide channel 5 and gradually expand to cover the earless snap ring 22 arranged at the guide shaft 6, and when the guide shaft 6 moves downwards to a position where the guide shaft is separated from the assembly position of the earless snap ring 22, the earless snap ring 22 falls into the shaft groove 21. 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. Fig. 5 shows only one structure of the dust cap for easy understanding of the present embodiment, and the structural form of the dust cap may be any shape.
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 inner diameter of the earless snap ring 22 is circular, the cross section profile of the guide shaft 6 is also circular, the overall appearance of the guide shaft 6 is in the shape of a circular truncated cone, and the simple deformation of the circular truncated cone also belongs to the protection scope of the invention, and the guide shaft 6 is characterized in that the circular truncated cone part can ensure that the earless snap ring 22 is stably expanded, so that the earless snap ring 22 cannot be deformed and deformed irreversibly.
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, in order to ensure the tight matching of the guide shaft 6 and the guide sleeve 4, the guide sleeve 4 should have a certain self-adjusting capability. Therefore, in the embodiment, the guide sleeve 4 is surrounded by 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 the installation sleeve 1, an adjusting gap 10 is reserved between each positioning piece 8 and the installation 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 and lower part simultaneous atress of spacer 8 can be guaranteed to the first elastic component 9 of multiunit arc wall 11 cooperation multiunit, and whole uide bushing 4 structure is more stable, and life is longer, avoids single spring ageing phenomenon to appear after long-time work, leads to spacer 8 can not stably fold. 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. A cavity 14 is arranged on the bottom surface of the sinking groove 13, a guide hole 15 matched with a guide post 16 is arranged at the lower end of the guide shaft 6, 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 sleeved on the guide post 16, the second elastic member 17 is a spring, an upper end of the second elastic member 17 abuts against a lower end surface of the guide shaft 6, and a lower end of the second elastic member 17 abuts against the base 2. In order to ensure stable assembly of the guide post 16 and the guide hole 15, the lower end opening 23 of the guide hole 15 is provided with a chamfer or a fillet.
In order to limit the guide sleeve 4 from coming out of the upper end in the mounting sleeve 1, the upper edge of the mounting sleeve 1 is provided with a flange 19, and the flange 19 is positioned in a middle hole of the mounting sleeve 1. Therefore, under the condition, the guide sleeve 4 cannot be separated from the upper end in the process of transporting the clamp, and the clamp is more convenient and safer to transport and use.
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 the middle of the connecting end is provided with an opening for 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 coat the handle 20, the inner side face of the dust cover 30 abuts against the positioning shoulder 7 at the moment, 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 earless snap ring 22 is larger than the inner diameter of the guide channel 5; 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.
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.
Example 4
The embodiment also discloses an installation method of the dust cover 30, which comprises the installation clamp of the embodiment 1, and further comprises the dust cover 30, a handle 20 and a no-ear snap ring 22, wherein the dust cover 30 comprises a connecting end connected with the handle 20, the connecting end is provided with an opening 23, the diameter of the opening 23 is smaller than that of the lower end face of the handle 20, the lower end of the handle 20 is provided with a shaft groove 21 used for being assembled with the no-ear snap ring 22, and the outer diameter of the shaft groove 21 is smaller than that of the upper end of the guide shaft 6; the assembly comprises the following steps:
turning the dustproof protective cover outwards, and enabling the lower end face of the handle 20 to abut against the connecting end of the handle 20, wherein the dustproof protective cover is covered outside the handle 20;
secondly, the lower end of the handle 20 covered with the dust cover 30 is abutted against the positioning shoulder 7;
step three, sleeving the earless snap ring 22 on the guide shaft 6 or placing the earless snap ring at an opening 23 at the upper end of the guide channel 5;
step four, the handle 20 and the guide shaft 6 are held, the guide shaft 6 is inserted into the guide channel 5, and the earless snap ring 22 is clamped with the outer wall of the guide shaft 6;
step five, the guide shaft 6 is pressed downwards by gripping the handle 20, and the guide shaft 6 moves downwards along the guide column 16; in the downward movement process, the guide shaft 6 gradually expands the inner diameter of the guide channel 5, and the guide channel 5 always abuts against the outer side surface of the guide shaft 6; when the upper end of the guide shaft 6 enters the guide channel 5, the earless snap ring 22 is separated from the support of the guide shaft 6, becomes small and is clamped at the position of the shaft groove 21 of the handle 20;
step six, adjusting the earless snap ring 22 which is not completely embedded into the shaft groove 21 by using a tool, wherein the earless snap ring 22 needs to be adjusted, and the tool can use locking pliers.
And seventhly, turning back the dust cover 30, wherein the dust cover 30 is arranged at the lower side of the handle 20, and the earless snap ring 22 covers the dust cover 30.
In summary, the above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made in the claims of the present invention should be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a mounting fixture of no ear snap ring which characterized in that: the installation fixture comprises a base (2) and an installation sleeve (1) fixed on the base (2), wherein an installation cavity (3) for assembly is formed in the middle of the installation sleeve (1), a guide sleeve (4) is inserted into the installation cavity (3), a guide channel (5) is formed in the middle of the guide sleeve (4), the installation fixture further comprises a guide shaft (6) for limiting and guiding the earless snap ring (22), the guide shaft (6) can be matched with the guide channel (5) to slide along the guide channel (5), and the outer diameter of the guide shaft (6) is gradually reduced from top to bottom; the upper end of the guide shaft (6) is provided with a positioning shoulder (7) for supporting the handle (20) and the dust cover (30); the guide sleeve (4) is enclosed by a plurality of positioning pieces (8), a first elastic part (9) is arranged between the outer wall of each positioning piece (8) and the inner wall of the installation sleeve (1), the first elastic part (9) acts on the positioning pieces (8), an adjusting gap (10) is reserved between each positioning piece (8) and the installation sleeve (1), the positioning pieces (8) mutually abut under the action of the first elastic part (9) to form a 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 part (9) to enable the shaft section of the guide channel (5) to expand or shrink.
2. The earless snap ring installation jig of claim 1, wherein: the lateral surface of spacer (8) is provided with arc wall (11), and arc wall (11) of multi-disc spacer (8) enclose into complete ring channel (12), and the axis of ring channel (12) place plane and guide way (5) is perpendicular, and first elastic component (9) are whole and are cyclic annular, and first elastic component (9) clamp is in ring channel (12), and spacer (8) support each other under the staple bolt of first elastic component (9) and lean on into a whole.
3. The earless snap ring installation jig of claim 1, wherein: location shoulder (7) are formed by offering in heavy groove (13) of guiding axle (6) upper end, are equipped with cavity (14) on the bottom surface of heavy groove (13), and the lower terminal surface that has handle (20) of dust cover (30) the cladding during assembly contradicts on the bottom surface of heavy groove (13), and guiding hole (15) that are used for with guide post (16) complex are offered to the lower extreme of guiding axle (6), and guiding hole (15) run through to cavity (14) and cavity (14) intercommunication.
4. A mounting clip for a earless snap ring, as claimed in any one of claims 1 to 3, 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).
5. The earless snap ring installation jig of claim 1, wherein: a guide post (16) is fixedly mounted on the base (2), a guide hole (15) matched with the guide post (16) is formed in the lower end of the guide shaft (6), and the guide shaft (6) can slide up and down along the guide post (16) through the guide hole (15).
6. The earless snap ring installation jig of claim 5, 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).
7. The earless snap ring installation jig of claim 1, wherein: install in the installation cover (1) and support cover (18), support the bottom surface of cover (18) and base (2) and contradict, the lower extreme of uide bushing (4) is sat and is established on supporting cover (18), and the last border of installation cover (1) is provided with flange (19), and flange (19) are located the last border of installation cavity (3).
8. The earless snap ring installation jig of claim 1, wherein: a copper piece or a copper-plated piece of the guide shaft (6) and the guide sleeve (4).
9. A method for installing a handle dust cover is characterized in that: the installation fixture comprises a dust cover (30), a handle (20), a no-ear snap ring (22) and the no-ear snap ring as claimed in any one of claims 1 to 7, wherein the dust cover (30) comprises a connecting end connected with the handle (20), the connecting end is provided with an opening (23), the diameter of the opening (23) is smaller than that of the lower end face of the handle (20), the lower end of the handle (20) is provided with a shaft groove (21) for assembling with the no-ear snap ring (22), and the outer diameter of the shaft groove (21) is smaller than that of the upper end of a guide shaft (6); the assembly comprises the following steps:
turning the dustproof protective cover outwards, and enabling the lower end face of the handle (20) to be abutted against the connecting end of the handle (20), wherein the dustproof protective cover is covered outside the handle (20);
secondly, the lower end of the handle (20) coated with the dust cover (30) is abutted against the positioning shoulder (7);
sleeving a lug-free snap ring (22) on the guide shaft (6) or placing the lug-free snap ring at an opening (23) at the upper end of the guide channel (5);
fourthly, the handle (20) and the guide shaft (6) are held, the guide shaft (6) is inserted into the guide channel (5), and the earless snap ring (22) is clamped with the outer wall of the guide shaft (6);
fifthly, the guide shaft (6) is pressed downwards by holding the handle (20), and the guide shaft (6) moves downwards along the guide column (16); in the downward movement process, the guide shaft (6) gradually expands the inner diameter of the guide channel (5), and the guide channel (5) is always abutted against the outer side surface of the guide shaft (6); when the upper end of the guide shaft (6) enters the guide channel (5), the earless snap ring (22) is separated from the support of the guide shaft (6) and becomes small and is clamped at the position of the shaft groove (21) of the handle (20);
and step six, turning back the dust cover (30).
10. The method of installing a handle dust cover according to claim 9, wherein: and a seventh step is executed after the fifth step, and the earless snap ring (22) which is not completely embedded into the shaft groove (21) is adjusted by using a tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911345362.3A CN111283618B (en) | 2019-12-24 | 2019-12-24 | Installation clamp for earless snap ring and installation method for handle dust cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911345362.3A CN111283618B (en) | 2019-12-24 | 2019-12-24 | Installation clamp for earless snap ring and installation method for handle dust cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111283618A CN111283618A (en) | 2020-06-16 |
| CN111283618B true CN111283618B (en) | 2021-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911345362.3A Active CN111283618B (en) | 2019-12-24 | 2019-12-24 | Installation clamp for earless snap ring and installation method for handle dust cover |
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| CN105382753A (en) * | 2015-12-08 | 2016-03-09 | 天津柯文实业股份有限公司 | Rubber plug assembling tool provided with multiple ejector rods |
| CN205218992U (en) * | 2015-12-17 | 2016-05-11 | 山西经纬纺织机械专件有限公司 | Retaining snap ring pressure equipment device |
| US9387576B1 (en) * | 2015-05-20 | 2016-07-12 | Winford Davis, Jr. | Faucet seat and spring inserter |
| CN205614575U (en) * | 2016-04-19 | 2016-10-05 | 龙工（上海）精工液压有限公司 | Steel wire retainer ring assembly fixture |
| CN108555828A (en) * | 2018-04-03 | 2018-09-21 | 许玉春 | A kind of environmental protection civic building antirust installation equipment |
| CN110281537A (en) * | 2019-07-26 | 2019-09-27 | 重庆明天机械有限公司 | Automobile swing arm gum cover pressing tool |
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2019
- 2019-12-24 CN CN201911345362.3A patent/CN111283618B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204135996U (en) * | 2014-08-21 | 2015-02-04 | 潍柴动力股份有限公司 | A kind of bush removing device |
| US9387576B1 (en) * | 2015-05-20 | 2016-07-12 | Winford Davis, Jr. | Faucet seat and spring inserter |
| CN105382753A (en) * | 2015-12-08 | 2016-03-09 | 天津柯文实业股份有限公司 | Rubber plug assembling tool provided with multiple ejector rods |
| CN205218992U (en) * | 2015-12-17 | 2016-05-11 | 山西经纬纺织机械专件有限公司 | Retaining snap ring pressure equipment device |
| CN205614575U (en) * | 2016-04-19 | 2016-10-05 | 龙工（上海）精工液压有限公司 | Steel wire retainer ring assembly fixture |
| CN108555828A (en) * | 2018-04-03 | 2018-09-21 | 许玉春 | A kind of environmental protection civic building antirust installation equipment |
| CN110281537A (en) * | 2019-07-26 | 2019-09-27 | 重庆明天机械有限公司 | Automobile swing arm gum cover pressing tool |
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| CN111283618A (en) | 2020-06-16 |
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