CN214355669U - Stepless adjusting mechanism - Google Patents
Stepless adjusting mechanism Download PDFInfo
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- CN214355669U CN214355669U CN202120327365.0U CN202120327365U CN214355669U CN 214355669 U CN214355669 U CN 214355669U CN 202120327365 U CN202120327365 U CN 202120327365U CN 214355669 U CN214355669 U CN 214355669U
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- shell body
- locking
- hole
- circular boss
- rollers
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- 230000007246 mechanism Effects 0.000 title claims abstract description 15
- 230000009471 action Effects 0.000 claims description 3
- 230000011514 reflex Effects 0.000 claims description 3
- 238000003754 machining Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The utility model discloses a stepless adjusting mechanism, including shell body and roller, this internal shoulder hole that is provided with of shell, the main aspects of shoulder hole set up the left end at shell body, be provided with the fixing base in the shoulder hole, the one end of fixing base is provided with circular boss, the external diameter of circular boss is greater than the diameter of shoulder hole tip, be provided with three roller between circular boss and the shoulder hole main aspects at least, be provided with on the circular boss with roller assorted scarce groove, shell body's upper end is provided with the convex locking hole of evenly transiting from big to small, be provided with the locking round pin in the locking hole, the one end at the unlocking arm is fixed at locking round pin both ends, shell body's upper end still is provided with the support arm that outwards stretches out, the middle part of unlocking arm is fixed on the support arm through the round pin axle. The number of integrally arranged parts is small, and the structure is simple; and only need carry out the finish machining to two faces with roller complex, its processing degree of difficulty is low.
Description
Technical Field
The utility model belongs to the technical field of automobile parts, concretely relates to stepless adjusting mechanism.
Background
With the improvement of society and economic level of people, most families are equipped with automobiles for convenience of traveling, and meanwhile, the requirement of people on the comfort of the automobiles is gradually improved. In order to meet the requirement of people on comfort, the left side and the right side of the automobile seat are provided with rotatable armrests, so that the elbows of passengers can be conveniently supported; the back of the front-row automobile seat is provided with a rotatable table board, so that a rear-row passenger can conveniently place articles; the rotatable foot support is arranged below the automobile seat, so that the feet of passengers can be supported conveniently. The rotary armrests, the rotary table board and the rotary foot supports are all rotated through the adjusting mechanisms. In the prior art, the adjusting mechanism has complex structure, more parts and complex processing and manufacturing.
SUMMERY OF THE UTILITY MODEL
The utility model discloses plan to provide a stepless adjustment mechanism, simple structure can effectively reduce the degree of difficulty of manufacturing.
Therefore, the utility model discloses the technical scheme who adopts does: a stepless adjusting mechanism comprises a shell body, rollers and an outer cover, wherein the outer cover is buckled at the left side of the shell body, a stepped hole is formed in the shell body, the large end of the stepped hole is arranged at the left end of the shell body, a fixed seat is arranged in the stepped hole, one end of the fixed seat is provided with a circular boss, the outer diameter of the circular boss is larger than the diameter of the small end of the stepped hole, at least three rollers are arranged between the circular boss and the large end of the stepped hole, a notch matched with the rollers is formed in the circular boss, a locking hole is formed in the upper end of the shell body, the locking hole is positioned on the inner side of the large end of the stepped hole and adopts an arc hole which is evenly transited from large to small, a locking pin is arranged in the locking hole, the outer diameter of the locking pin is between the diameter of the large end of the locking hole and the diameter of the small end of the locking pin, and two ends of the locking pin are fixed at one end of the outer cover which is disassembled, the upper end of the shell body is also provided with a support arm extending outwards, and the middle part of the unlocking arm is fixed on the support arm through a pin shaft;
when the shell body rotates under the action of external force, the roller rotates around the fixed seat, and meanwhile, the locking hole rotates, so that the fit between the roller and the locking pin is changed from clearance fit to interference fit, and locking is realized; when the other end of the unlocking arm is rotated, the locking pin can be moved from the small end to the large end of the locking hole, so that unlocking is realized.
Preferably, the angle between two of said rollers near the upper end is between 125 ° and 155 °, the remaining rollers being arranged uniformly within the reflex angle.
Further preferably, the enclosing cover is evenly provided with at least three back-off buttons, and the position corresponding to the back-off buttons on the shell body is provided with a notch.
More preferably, the notch is a semicircular notch.
Preferably, the unlocking arm is in a V shape, and one end of the unlocking arm is forked and then fixedly connected with the left end and the right end of the locking pin.
The utility model has the advantages that: the roller is arranged on the shell body, the rotation of the shell body is realized through the roller, but the fixed seat does not rotate, the locking hole and the locking pin which are in a circular arc shape from large to small are also arranged on the shell body, when the shell body rotates to a certain angle, the locking function is realized through the matching of the locking hole and the locking pin, the unlocking arm is arranged on the locking pin, the shell body can be unlocked, the number of integrally arranged parts is small, and the structure is simple; only two surfaces matched with the roller are required to be subjected to finish machining, and the machining difficulty is low; when the outer cover is provided with the plastic part, the weight and the cost of the whole adjusting mechanism can be effectively reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a cross-sectional view of B-B in fig. 1.
Fig. 3 is a cross-sectional view a-a of fig. 2.
Fig. 4 is a perspective view of the present invention.
Fig. 5 is an exploded view of the present invention.
Detailed Description
The invention will be further described by way of examples with reference to the accompanying drawings:
as shown in fig. 1-5, a stepless adjusting mechanism mainly comprises a housing body 1, a roller 2, an outer cover 3, a fixed seat 4, a locking pin 5, an unlocking arm 6 and a pin 7.
The enclosing cover 3 is buckled on the left side of the shell body 1, a stepped hole 1a is formed in the shell body 1, and the large end of the stepped hole 1a is arranged at the left end of the shell body 1. Be provided with fixing base 4 in the shoulder hole 1a, the one end of fixing base 4 is provided with circular boss 4a, and circular boss 4a is located the main aspects of shoulder hole 1a, for preventing that circular boss 4a from deviating from the tip of shoulder hole 1a, circular boss 4 a's external diameter is greater than the diameter of shoulder hole 1a tip.
At least three rollers 2 are arranged between the circular boss 4a and the large end of the stepped hole 1a, a notch a matched with the rollers 2 is arranged on the circular boss 4a, and the rollers 2 are arranged in the notch a. Be provided with locking hole 1b in the upper end of shell body 1, and locking hole 1b is located the inboard of shoulder hole 1a main aspects, and adopt the circular arc hole by big to little even transition, be provided with locking round pin 5 in the locking hole 1b, the external diameter of locking round pin 5 is between locking hole 1b main aspects diameter and tip diameter, the one end at unlocking arm 6 is fixed at locking round pin 5 both ends, the upper end of shell body 1 still is provided with outside support arm 1c that stretches out, the middle part of unlocking arm 6 is fixed on support arm 1c through round pin axle 7.
When shell body 1 rotated under the exogenic action, roller 2 rotated round fixing base 4, and locking hole 1b rotated simultaneously, made its cooperation with locking round pin 5 become interference fit by clearance fit, realized locking. When the other end of the unlocking arm 6 is rotated, the locking pin 5 can be moved from the small end to the large end of the locking hole 1b, thereby unlocking.
In order to facilitate the rotation of the shell body 1, an included angle between two rollers 2 close to the upper end is between 125 degrees and 155 degrees, the locking holes 1b are arranged in the two rollers 2 at the upper end, and the other rollers 2 are uniformly arranged in the reflex angle.
For making between enclosing cover 3 and the housing body 1 the more firm of lock, evenly be provided with at least three back-off 3a at enclosing cover 3, the position department that corresponds the back-off on the housing body 1 is provided with breach 1 d.
In order to prevent the rollers 2 from leaving the notch a during rotation and to facilitate the processing of the notch a, the notch a is formed into a semicircular notch.
To reduce the length of the unlocking arm 6, the unlocking arm 6 is designed in a V-shape. When 6 unblock arms are needed, locking round pin 5 is interference fit with locking hole 1b, for guaranteeing that 6 can become clearance fit with locking round pin 5 by interference fit of unblock arms, with the one end forked back of 6 of unblock arms and the fixed linking to each other of the left and right sides of locking round pin 5, can increase the unblock power of removing locking round pin 5.
Claims (5)
1. A stepless adjustment mechanism is characterized in that: comprises a shell body (1), outer covers (3) of rollers (2) and an unlocking arm (6), wherein the outer covers (3) are buckled on the left side of the shell body (1), a stepped hole (1a) is formed in the shell body (1), the large end of the stepped hole (1a) is arranged at the left end of the shell body (1), a fixed seat (4) is arranged in the stepped hole (1a), a circular boss (4a) is arranged at the right end of the fixed seat (4), the outer diameter of the circular boss (4a) is larger than the diameter of the small end of the stepped hole (1a), at least three rollers (2) are arranged between the circular boss (4a) and the large end of the stepped hole (1a), a groove (a) matched with the rollers (2) is formed in the circular boss (4a), a locking hole (1b) is formed in the upper end of the shell body (1), and the locking hole (1b) is positioned at the inner side of the large end of the stepped hole (1a), an arc hole which is evenly transited from large to small is adopted, a locking pin (5) is arranged in the locking hole (1b), the outer diameter of the locking pin (5) is between the diameter of the large end and the diameter of the small end of the locking hole (1b), one end of an unlocking arm (6) is fixedly connected with the locking pin (5), a support arm (1c) extending outwards is further arranged at the upper end of the shell body (1), and the middle part of the unlocking arm (6) is fixed on the support arm (1c) through a pin shaft (7);
when the shell body (1) rotates under the action of external force, the roller (2) rotates around the fixed seat (4), and meanwhile, the locking hole (1b) rotates, so that the fit between the roller and the locking pin (5) is changed from clearance fit into interference fit, and locking is realized; when the other end of the unlocking arm (6) is rotated, the locking pin (5) can be moved from the small end to the large end of the locking hole (1b), so that unlocking is realized.
2. The stepless adjustment mechanism of claim 1, characterized in that: the included angle between two rollers (2) close to the upper end is between 125 and 155 degrees, and the other rollers (2) are uniformly arranged in the reflex angle.
3. The stepless adjustment mechanism of claim 1, characterized in that: the outer cover (3) is uniformly provided with at least three reverse buckles (3a), and notches (1d) are arranged at positions corresponding to the reverse buckles on the shell body (1).
4. The stepless adjustment mechanism of claim 1, characterized in that: the notch (a) is a semicircular notch.
5. The stepless adjustment mechanism of claim 1, characterized in that: the shape of release arm (6) is the V-arrangement, the one end fork back of release arm (6) is fixed continuous with the left and right sides both ends of lock pin (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120327365.0U CN214355669U (en) | 2021-02-04 | 2021-02-04 | Stepless adjusting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120327365.0U CN214355669U (en) | 2021-02-04 | 2021-02-04 | Stepless adjusting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214355669U true CN214355669U (en) | 2021-10-08 |
Family
ID=77963913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120327365.0U Active CN214355669U (en) | 2021-02-04 | 2021-02-04 | Stepless adjusting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214355669U (en) |
-
2021
- 2021-02-04 CN CN202120327365.0U patent/CN214355669U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 401133 No. 218 Yuguan Avenue, Yuzui Town, Jiangbei District, Chongqing Patentee after: Magna Hongli Automotive System Group Co.,Ltd. Country or region after: China Address before: 401133 No. 218 Yuguan Avenue, Yuzui Town, Jiangbei District, Chongqing Patentee before: Chongqing Hongli Zhixin Technology Development Group Co.,Ltd. Country or region before: China |