CN210068728U - Reversible joint device for rear-view mirror of locomotive - Google Patents
Reversible joint device for rear-view mirror of locomotive Download PDFInfo
- Publication number
- CN210068728U CN210068728U CN201920719880.6U CN201920719880U CN210068728U CN 210068728 U CN210068728 U CN 210068728U CN 201920719880 U CN201920719880 U CN 201920719880U CN 210068728 U CN210068728 U CN 210068728U
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- friction
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- piece
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Abstract
A reversible joint device of a locomotive rearview mirror comprises a limiting rotating shaft, a stop ring piece, a steering joint and a friction unit. The limiting rotating shaft comprises a main shaft rod and a limiting ring fixed at the middle section of the main shaft rod. The stop ring is fixed on the main shaft rod. The steering joint comprises a friction ring block positioned between the limiting ring and the stopping ring piece. The friction unit comprises a first friction piece and a second friction piece, wherein the first friction piece is located between the friction ring block and the limiting ring, and the second friction piece is located between the friction ring block and the stopping ring. The first friction piece, the friction ring block and the second friction piece are tightly clamped between the stop ring piece and the limiting ring. By applying the principle of friction, the space occupied by the first friction piece and the second friction piece is smaller, and the durability can be effectively improved.
Description
Technical Field
The utility model relates to a locomotive spare part especially relates to a locomotive rearview mirror's formula of can falling piecing devices.
Background
A reversible rearview mirror as disclosed in taiwan certificate number M430415, which comprises a limit rotation shaft, an adapter rotatably sleeved on the limit rotation shaft, a rearview mirror body installed on the adapter, a fixing member for positioning the adapter on the limit rotation shaft, and an elastic unit. The rearview mirror body can rotate relative to the limiting rotating shaft along with the adapter, and then reaches different positions. The existing reversible rearview mirror utilizes the elastic unit to enable the adapter to keep the tendency of embedding and clamping towards the limiting rotating shaft, and then the adapter is embedded and clamped in the limiting rotating shaft after rotating and keeps positioning. However, the conventional reversible rearview mirror has disadvantages in that: the elastic unit is composed of a plurality of disk-shaped reeds and needs to give enough elastic space to exert elasticity. However, the current market trend is to use a compact appearance as a customer appeal, so how to reduce the occupied space becomes an important issue. In addition, the disc-shaped spring plate is easy to cause the elastic force to decline after long-term use, and further causes the prior reversible rearview mirror to be in failure. The failure will cause the user experience to be poor, so how to effectively improve the durability is a considerable problem.
Disclosure of Invention
An object of the utility model is to provide a reduce occupation space and promote the reversible piecing devices of locomotive rear-view mirror of durability.
The utility model discloses but locomotive rear-view mirror's falling formula piecing devices, locomotive rear-view mirror still contain connect in but falling formula piecing devices and reflection image's the rear-view mirror body. The reversible joint device comprises a limiting rotating shaft, a stop ring piece, a steering joint and a friction unit.
The limiting rotating shaft comprises a main shaft rod extending along the axis and a limiting ring fixed at the middle section of the main shaft rod. The stop ring is fixed at one end of the main shaft rod. The steering joint comprises a friction ring block positioned between the limiting ring and the stopping ring piece and an adapter connected to the friction ring block and used for mounting the rearview mirror body. The friction ring block is annularly and movably sleeved on the main shaft rod.
The friction unit comprises a first friction group and a second friction group, the first friction group is located between the friction ring block and a limiting ring of the limiting rotating shaft, the second friction group is located between the friction ring block and the stopping ring piece, the first friction group and the second friction group are both annular and are sleeved on the spindle rod, the first friction group is provided with a first friction piece adjacent to the friction ring block and a first gasket adjacent to the first friction piece, and the second friction group is provided with a second friction piece adjacent to the friction ring block and a second gasket adjacent to the second friction piece. The first friction piece, the friction ring block and the second friction piece are tightly clamped between the stop ring piece and the limiting ring. The first friction piece is provided with a first friction surface which is pressed against the friction ring block. The second friction piece is provided with a second friction surface which is tightly abutted against the friction ring block.
The utility model discloses but formula of falling piecing devices of locomotive rear-view mirror, the main shaft pole of spacing pivot has spacing pole portion, and connect in the lock solid pole portion of spacing pole portion, the spacing ring is fixed in spacing pole portion with the juncture in lock solid pole portion, it is fixed in to support the ring spare spacing pole portion.
The utility model discloses but formula of falling piecing devices of locomotive rearview mirror, the outer peripheral face in the lock solid pole portion of spacing pivot has the screw thread, but formula of falling piecing devices still contain the screw lock in lock solid pole portion and be suitable for with spacing pivot lock is in the lock solid nut of locomotive automobile body.
The utility model discloses but formula of falling piecing devices of locomotive rearview mirror, friction unit's first friction group still has and is located first packing ring with liner between the spacing ring.
The utility model discloses but formula of falling piecing devices of locomotive rear-view mirror, spacing pole portion of spacing pivot have adjacent to the ring gear section of lock solid pole portion, the ring gear section has a plurality of encircles the locking tooth that the axis set up, friction unit's liner corresponding to the ring gear section just have a plurality of with the internal tooth that the locking tooth meshed each other, the locking tooth with the internal tooth makes the liner can not for spacing pole portion rotates.
The utility model discloses but formula of falling piecing devices of locomotive rear-view mirror, the stop ring spare is fixed in with the mode of riveting the main shaft pole of spacing pivot.
The utility model discloses but formula of falling piecing devices of locomotive rear-view mirror, the friction unit first friction surface with the roughness of second friction surface is different each other.
The utility model discloses but formula of falling piecing devices of locomotive rear-view mirror, the adapter that turns to the joint has to encircle spacing pivot and follow and be on a parallel with the direction of axis is extended encircle the wall, by encircle the wall outside and skew towards the installation department that the direction of axis is stretched out, and the end cover, encircle the wall inner ring side connect in the friction ring piece and around defining hold the friction ring piece with the spacing space of friction unit, spacing space has the confession the spacing opening that spacing pivot penetrated, and follow the axis set up in reverse in the equipment opening of spacing open-ended one side, the end cover fits the equipment opening, the installation department has the mounting hole that is applicable to the confession the installation of rear-view mirror body.
The beneficial effects of the utility model reside in that: through the first friction surface and the second friction surface tightly abutting against the friction ring block, the steering joint can rotate relative to the limit rotating shaft only by overcoming a certain degree of friction force, otherwise, the steering joint can keep positioning. In addition, due to the fact that the principle of friction is applied, the space occupied by the first friction piece and the second friction piece is small, and the durability can be effectively improved.
Drawings
FIG. 1 is a perspective view of one embodiment of a reversible joint assembly for a motorcycle rear view mirror of the present invention;
FIG. 2 is an exploded perspective view of the embodiment;
FIG. 3 is a cross-sectional view taken along line III-III of FIG. 1;
FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 3.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
Referring to fig. 1, 2 and 3, in a first embodiment of the reversible joint device of the motorcycle rear mirror of the present invention, the motorcycle rear mirror further includes a rear mirror body 91 connected to the reversible joint device and capable of reflecting an image. The reversible joint device comprises a limit rotating shaft 1, a stop ring member 2, a steering joint 3, a friction unit 4 and a locking nut 5.
The limiting rotating shaft 1 comprises a main shaft rod 11 extending along an axis L, and a limiting ring 12 fixed at the middle section of the main shaft rod 11. The main shaft 11 has a limiting rod 111 and a locking rod 112 connected to the limiting rod 111. The limiting ring 12 is manufactured integrally with the main shaft rod 11 and fixed at the boundary between the limiting rod 111 and the locking rod 112. The position-limiting rod 111 has a ring gear section 113 adjacent to the locking rod 112, and a screw-locking section 114 at an end opposite to the ring gear section 113. The ring gear segment 113 has a plurality of stop teeth 115 disposed about the axis L. The screw locking section 114 has a thread on its outer circumference. The locking rod 112 has threads on its outer circumference. After the stop ring 2 is screwed to the screw-locking section 114 of the limit rod 111, it is fixed to the limit rod 111 in a riveting manner.
The steering joint 3 includes a friction ring block 31 located between the limiting ring 12 and the stopping ring 2, and an adapter 32 connected to the friction ring block 31 and used for mounting the rear-view mirror 91. The friction ring 31 is annularly and movably sleeved on the main shaft 11 (as shown in fig. 4). The adapter 32 has a surrounding wall 321 surrounding the limiting rotation shaft 1 and extending in a direction parallel to the axis L, a mounting portion 322 protruding from the outside of the surrounding wall 321 in a direction deviating from the axis L, and an end cap 323. The surrounding wall 321 is connected to the friction ring block 31 at an inner side thereof and surrounds and defines a limiting space 324 for accommodating the friction ring block 31 and the friction unit 4. The limiting space 324 has a limiting opening 325 for the limiting shaft 1 to pass through, and an assembling opening 326 disposed on a side opposite to the limiting opening 325 along the axis L. The end cap 323 covers the assembly opening 326. The mounting portion 322 has a mounting hole 327 adapted for mounting the rear mirror body 91.
The friction unit 4 includes a first friction set 41 located between the friction ring block 31 and the limiting ring 12 of the limiting rotating shaft 1, and a second friction set 42 located between the friction ring block 31 and the stopping ring member 2. The first friction set 41 and the second friction set 42 are both annular and are sleeved on the limit rod 111. The first friction set 41 has a first friction member 411 adjacent to the friction ring block 31, a first washer 412 adjacent to the first friction member 411, and a gasket 413 between the first washer 412 and the retainer ring 12. The second friction set 42 has a second friction member 421 adjacent to the friction ring block 31, and a second washer 422 adjacent to the second friction member 421. The packing 413 corresponds to the ring gear segment 113 and has a plurality of internal teeth 414 engaged with the stop teeth 115. The stop teeth 115 and the internal teeth 414 allow the packing 413 not to rotate with respect to the limit lever 111.
The first friction member 411, the friction ring block 31 and the second friction member 421 are tightly clamped between the stop ring 2 and the stop ring 12. The first friction element 411 has a first friction surface 415 which is pressed against the friction ring 31. The second friction member 421 has a second friction surface 423 which is pressed against the friction ring block 31. The first friction surface 415 and the second friction surface 423 have different surface roughness from each other.
The locking nut 5 is screwed to the locking rod 112 and is adapted to lock the limiting shaft 1 to a motorcycle body 92.
When assembling the present embodiment, the pad 413 of the friction unit 4 is sleeved on the ring gear segment 113 of the limiting rotation shaft 1, and then the first washer 412, the first friction member 411, the friction ring block 31, the second friction member 421 and the second washer 422 are sequentially sleeved on the limiting rod 111. Then, the stop ring 2 is screwed to the screw-locking segment 114, and a pressing force is applied to the stop ring 2, so that the first friction member 411, the friction ring block 31 and the second friction member 421 are tightly clamped between the stop ring 2 and the limiting ring 12. In the aforementioned tightening state, the stop ring 2 and the limit rotating shaft 1 are riveted with each other. Finally, the assembling opening 326 is covered by the end cap 323. In addition, the present embodiment can be locked to the motorcycle body 92 by the lock nut 5, and the rear-view mirror 91 can be installed through the installation hole 327.
In this way, the rearview mirror 91 can rotate relative to the limit rotating shaft 1 along with the steering joint 3, and is further used for observing vehicles in the coming and going directions. However, since the first friction surface 415 and the second friction surface 423 tightly abut against the friction ring block 31, the steering joint 3 needs to overcome a certain degree of friction force to rotate relative to the limit rotating shaft 1, otherwise the positioning will be maintained. Proper friction prevents the embodiment from rotating due to accidental touch. That is, the present embodiment can be rotated to the desired angle only when sufficient force is intentionally applied. It should be noted that the tightening force affects the magnitude of the aforementioned friction force, and in the present embodiment, the stop ring 2 is locked to the screw locking segment 114 with a torsion of 270 to 370kgf/cm, for generating a proper friction force, but this is by way of example only and not limitation.
Since the present embodiment applies the principle of friction, the first friction member 411 and the second friction member 421 occupy a smaller space than the disc-shaped spring leaf described in the prior art. In addition, the first friction element 411 and the second friction element 421 have no problem of elastic recession, so that the durability can be effectively improved.
It should be noted that, in the embodiment, the surface roughness of the first friction surface 415 and the second friction surface 423 are different from each other, which causes the maximum static friction force generated between the friction ring block 31 and the friction ring block to be different from each other, so that it is possible to prevent the situation that the maximum static friction force of the first friction surface 415 and the maximum static friction force of the second friction surface 423 need to be overcome at the same time. It should be noted that in the present embodiment, the maximum static friction force is affected by varying the surface roughness of the first friction surface 415 and the second friction surface 423, but the applicable technical means are not limited thereto.
In addition, the first washer 412 and the second washer 422 function to make the tightening force be uniformly distributed on the first friction member 411 and the second friction member 421. Therefore, the turning joint 3 has better fluency when rotating relative to the limit rotating shaft 1, and can not be blocked due to uneven stress.
To sum up, the utility model discloses the reversible piecing devices of locomotive back mirror reduces the space that occupies through this first friction piece 411 and this second friction piece 421, and can effectively promote the durability, so can reach the purpose of the utility model with low costs really.
Claims (8)
1. The utility model provides a can fall formula piecing devices of locomotive back mirror, locomotive back mirror still contain connect in can fall formula piecing devices and can reflect the back mirror body of image, can fall formula piecing devices contains spacing pivot, stop ring spare, steering joint, and friction unit, its characterized in that:
the limiting rotating shaft comprises a main shaft rod extending along the axis and a limiting ring fixed at the middle section of the main shaft rod;
the stop ring piece is fixed at one end of the main shaft rod;
the steering joint comprises a friction ring block positioned between the limiting ring and the stopping ring piece and an adapter connected with the friction ring block and used for mounting the rearview mirror body, and the friction ring block is annularly and movably sleeved on the main shaft rod;
the friction unit comprises a first friction group positioned between the friction ring block and the limiting ring of the limiting rotating shaft and a second friction group positioned between the friction ring block and the stopping ring piece, the first friction group and the second friction group are annular and are sleeved on the spindle rod, the first friction group is provided with a first friction piece adjacent to the friction ring block and a first gasket adjacent to the first friction piece, the second friction group is provided with a second friction piece adjacent to the friction ring block and a second washer adjacent to the second friction piece, the first friction piece, the friction ring block and the second friction piece are tightly clamped between the stop ring piece and the limiting ring, the first friction piece is provided with a first friction surface which is tightly abutted against the friction ring block, and the second friction piece is provided with a second friction surface which is tightly abutted against the friction ring block.
2. The reversible joint device for a rear-view mirror of a locomotive according to claim 1, wherein: the main shaft rod of the limiting rotating shaft is provided with a limiting rod part and a locking rod part connected to the limiting rod part, the limiting ring is fixed at the junction of the limiting rod part and the locking rod part, and the stopping ring part is fixed at the limiting rod part.
3. The reversible joint device for a rear-view mirror of a locomotive according to claim 2, wherein: the periphery of the locking rod part of the limiting rotating shaft is provided with threads, and the reversible joint device further comprises a locking nut which is screwed on the locking rod part and is suitable for locking the limiting rotating shaft on the locomotive body.
4. The reversible joint device for a rear-view mirror of a locomotive according to claim 2, wherein: the first friction group of the friction unit is also provided with a gasket positioned between the first gasket and the limiting ring.
5. The reversible joint device for a rear-view mirror of a locomotive according to claim 4, wherein: the limiting rod part of the limiting rotating shaft is provided with a ring gear section adjacent to the locking rod part, the ring gear section is provided with a plurality of stopping teeth arranged around the axis, the gasket of the friction unit corresponds to the ring gear section and is provided with a plurality of inner teeth meshed with the stopping teeth, and the stopping teeth and the inner teeth enable the gasket not to rotate relative to the limiting rod part.
6. The reversible joint device for a rear-view mirror of a locomotive according to claim 1, wherein: the stopping ring is fixed on the main shaft rod of the limiting rotating shaft in a riveting mode.
7. The reversible joint device for a rear-view mirror of a locomotive according to claim 1, wherein: the first friction surface and the second friction surface of the friction unit have different surface roughness from each other.
8. The reversible joint device for a rear-view mirror of a locomotive according to claim 1, wherein: the adapter of steering joint has the encirclement spacing pivot and along being on a parallel with the wall that encircles that the direction of axis extends, by the outside of encirclement wall is towards deviating the installation department that the direction of axis is protruding, and the end cover, the interior ring side of encirclement wall connect in the friction ring piece holds around defining the friction ring piece with the spacing space of friction unit, spacing space has the confession spacing opening that spacing pivot penetrated, and follow the axis set up in the opposite to the equipment opening of spacing open-ended one side, the end cover lid fits the equipment opening, the installation department has the mounting hole that is applicable to the confession the installation of back mirror body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920719880.6U CN210068728U (en) | 2019-05-20 | 2019-05-20 | Reversible joint device for rear-view mirror of locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920719880.6U CN210068728U (en) | 2019-05-20 | 2019-05-20 | Reversible joint device for rear-view mirror of locomotive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210068728U true CN210068728U (en) | 2020-02-14 |
Family
ID=69452892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920719880.6U Active CN210068728U (en) | 2019-05-20 | 2019-05-20 | Reversible joint device for rear-view mirror of locomotive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210068728U (en) |
-
2019
- 2019-05-20 CN CN201920719880.6U patent/CN210068728U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |