CN114670728A - Automobile armrest rotation adjusting device - Google Patents
Automobile armrest rotation adjusting device Download PDFInfo
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- CN114670728A CN114670728A CN202210596712.9A CN202210596712A CN114670728A CN 114670728 A CN114670728 A CN 114670728A CN 202210596712 A CN202210596712 A CN 202210596712A CN 114670728 A CN114670728 A CN 114670728A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/75—Arm-rests
- B60N2/763—Arm-rests adjustable
- B60N2/77—Height adjustment
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Abstract
The invention discloses an automobile armrest rotation adjusting device which comprises a shaft body, an elastic part, a locking sleeve, a middle limiting sleeve and an adjusting sleeve connected with an automobile armrest, wherein the shaft body is provided with a shaft hole; the elastic element, the locking sleeve, the middle limiting sleeve and the adjusting sleeve are respectively sleeved on the shaft body, so that the elastic element, the locking sleeve, the middle limiting sleeve and the adjusting sleeve are matched with each other on the shaft body to move to the armrest connected on the adjusting sleeve in a matched mode, the armrest is lifted to be adjusted and positioned and is freely placed down to move, the structure is simple, and assembly and disassembly are facilitated.
Description
Technical Field
The invention relates to the technical field of multi-stage adjustment of rotary motion of an automobile armrest, in particular to a rotary adjusting device for the automobile armrest.
Background
With the development of automobile manufacturing industry, the technical requirements on the field of automobile parts are higher and higher. The box-type middle island on the right side of the vehicle driver can be used for placing articles or cups, the cover plate can be used as an armrest, and the height angle of the armrest cover is adjusted, so that the comfort of the driver is more important. In the prior art, there are many types of devices for adjusting the armrest, such as an armrest angle adjusting device, a seat and an assembling method thereof, an automobile, which are disclosed in chinese patent publication No. CN111845501A, and an adjusting device applied to an armrest of an automobile seat, which is disclosed in chinese patent publication No. CN 215398329U.
Disclosure of Invention
The present invention is directed to an armrest rotation adjustment device for an automobile, which is designed to solve the above-mentioned technical disadvantages, and has the following embodiments.
The invention designs a car handrail rotation adjusting device, including: the automobile armrest comprises a shaft body, an elastic part, a locking sleeve, a middle limiting sleeve and an adjusting sleeve connected with an automobile armrest, wherein the elastic part, the locking sleeve, the middle limiting sleeve and the adjusting sleeve are respectively sleeved on the shaft body;
one end of the elastic piece is connected with the shaft body, the other end of the elastic piece is abutted against one end face of the locking sleeve, the locking sleeve comprises a first groove and a first gear, and a limiting structure for limiting the relative rotation of the locking sleeve and the shaft body is arranged between the inner wall of the locking sleeve and the outer wall of the shaft body;
the adjusting sleeve is positioned on one side of the first gear and comprises a second groove and a second gear, the first groove and the second groove are spliced to form an accommodating cavity, and the first gear and the second gear are meshed with each other; each first convex tooth of the first gear comprises a first inclined surface and a first locking surface, each second convex tooth of the second gear comprises a second inclined surface and a second locking surface, the first inclined surface is matched with the second inclined surface, and the first locking surface is matched with the second locking surface;
the middle limiting sleeve is arranged in the accommodating cavity, at least one recess is formed on the inner wall of the first groove, an inner recess and at least one protrusion matched with the recess correspondingly are formed on the middle limiting sleeve, the protrusion is recessed into the recess and comprises a first inner inclined surface, the protrusion comprises a first outer inclined surface matched with the first inner inclined surface and a guide portion, a convex portion extends from the upper end of the first inner inclined surface on the recess, when the middle limiting sleeve rotates around the axis of the middle limiting sleeve to the front side direction of the shaft body, the protrusion passes over the convex portion under the action of the guide portion, a bump is formed on the inner wall of the second groove, the bump is recessed into the recess, and the width W1 of the recess is larger than the width W2 of the bump.
The automobile handrail is pulled up at least once to drive the adjusting sleeve to rotate around the axis of the adjusting sleeve towards the rear side of the shaft body, so that the convex block moves at least once in the concave part, the locking sleeve moves towards the elastic part under the condition of mutual guide and matching of the first inclined surface and the second inclined surface in the moving process, the elastic part is compressed and contracted to separate the first gear from the second gear, the second convex tooth at least passes through the first convex tooth once, and the elastic part extends to drive the locking sleeve to move towards the adjusting sleeve, so that the first gear and the second gear are meshed with each other;
when the lug moves to abut against the tail end of the inner recess, when the handrail needs to be lowered, the adjusting sleeve continuously rotates around the axis of the adjusting sleeve towards the rear side of the shaft body, the middle limiting sleeve is driven to rotate around the axis of the adjusting sleeve towards the rear side of the shaft body, the lug is driven to pass through the convex part under the matching of the first inner inclined surface and the first outer inclined surface to leave the inner recess, the first gear and the second gear are separated from each other, then the automobile handrail is controlled to be lowered, the adjusting sleeve rotates around the axis of the adjusting sleeve towards the front side of the shaft body, the middle limiting sleeve is also driven to rotate around the axis of the adjusting sleeve towards the front side of the shaft body under the action of the elastic element, when the lug is blocked by the convex part to stop rotating the middle limiting sleeve, the continuously rotating adjusting sleeve drives the lug to move from the tail end of the inner recess to abut against the starting end of the inner recess, and drives the middle limiting sleeve to rotate around the axis of the adjusting sleeve towards the front side of the shaft body again, so that the lug passes through the convex part to sink into the inner recess, the elastic piece drives the locking sleeve to move towards the direction of the adjusting sleeve, so that the first gear and the second gear are meshed with each other.
Preferably, the convex part comprises a second inner inclined surface connected with the first inner inclined surface and round surfaces positioned at two ends of the top surface.
Preferably, the recess further comprises a third inner inclined surface, the protrusion is provided with a first step and a second step through the recess, the end part of the first step facing the third inner inclined surface and the end part of the second step facing the third inner inclined surface are both provided with a second outer inclined surface and a circular arc surface, and the height of the first step is higher than that of the protrusion.
Preferably, the gear sleeve is sleeved on the first gear, the position of a third convex tooth of the gear sleeve corresponds to the position of the first convex tooth of the first gear, and the height and the cross-sectional shape of the third convex tooth are consistent with those of the first convex tooth.
Preferably, the gear sleeve is provided with a plurality of buckles arranged in an annular array, and each buckle is buckled on the lower edge of the first gear.
Preferably, the clamping device further comprises a clamping hoop, the clamping hoop is fixedly sleeved on the shaft body, and one end of the elastic piece abuts against the end face of the clamping hoop.
As preferred, limit structure includes many first spacing strips that are formed at the axis body and many first spacing logical grooves that are formed at the inner wall of the locking cover, and many first spacing strips set up and are formed with the spacing logical groove of at least one second at an interval each other, and many first spacing logical grooves set up and are formed with the spacing strip of at least one second at an interval each other, and first spacing strip corresponds inserts first spacing logical inslot, and the spacing strip of second corresponds inserts the spacing logical inslot of second.
Preferably, the limiting structure comprises a third limiting strip formed on the shaft body and a third limiting through groove formed on the inner wall of the locking sleeve, the third limiting strip is correspondingly inserted into the third limiting through groove, or the limiting structure comprises a third limiting through groove formed on the shaft body and a third limiting strip formed on the inner wall of the locking sleeve, and the third limiting strip is correspondingly inserted into the third limiting through groove.
Preferably, a connecting body is provided at an outer end of the adjusting sleeve, and a plurality of annular array-arranged protrusions are formed on a peripheral side of the connecting body.
Preferably, the recess includes a fourth inner inclined surface and a fifth inner inclined surface, and the protrusion includes a third outer inclined surface engaged with the fourth inner inclined surface and a fourth outer inclined surface engaged with the fifth inner inclined surface.
Compared with the prior art, the automobile armrest rotation adjusting device described by the invention utilizes the adjusting sleeve to rotate towards the rear side of the axle body, under the mutual cooperation effect of the first convex tooth of the first gear and the second convex tooth of the second gear, the locking sleeve is promoted to move towards the elastic part, the elastic part is compressed and contracted, the second convex tooth of the second gear goes over the first convex tooth, thereby completing one-time adjustment, when the automobile armrest is continuously lifted and adjusted as required, the adjusting sleeve is continuously controlled to rotate towards the rear side of the axle body according to the steps, when the convex block moves to be in contact with the tail end of the inner recess, the adjusting sleeve continuously rotates towards the rear side of the axle body to drive the middle limiting sleeve to rotate towards the rear side of the axle body, the convex part leaves the inner recess under the cooperation of the first inner inclined plane and the first outer inclined plane, the first gear and the second gear are separated from each other, the automobile armrest is controlled to be lowered, so that the adjusting sleeve freely rotates towards the front side of the axle body, the lug is walked to the initiating terminal of indent by the tail end of indent until to accomplish the operation of transferring of car handrail, consequently above-mentioned car handrail rises to adjust and car handrail transfers fast and all can accomplish through five parts of axis body, elastic component, locking cover, middle stop collar and adjusting collar mutually supporting, makes the equipment simple and convenient, and the dismouting operation of the later stage maintenance of being convenient for.
Drawings
FIG. 1 is an exploded view of the overall structure;
FIG. 2 is a schematic view of the structure after the integral assembly;
FIG. 3 is an exploded view of the overall structure (II);
FIG. 4 is an enlarged view at A;
FIG. 5 is a schematic structural diagram (I) of the locking sleeve in limit fit with the shaft body;
FIG. 6 is a schematic structural view of the locking sleeve;
FIG. 7 is a schematic structural diagram (one) of the intermediate position-limiting sleeve;
FIG. 8 is a schematic structural view of the intermediate position-limiting sleeve (II);
FIG. 9 is a schematic view of the structure of the adjustment sleeve;
FIG. 10 is a schematic view of a first gear with a gear sleeve engaged thereon;
FIG. 11 is a schematic structural diagram (I) of the locking sleeve in limit fit with the shaft body;
FIG. 12 is a schematic structural diagram (II) of the limit fit of the locking sleeve and the shaft body;
in the figure: the shaft body 1, the first limit strip 11, the second limit through groove 12, the third limit strip 13, the locking sleeve 2, the first gear 21, the first convex tooth 211, the first inclined surface 212, the first locking surface 213, the positioning groove 215, the second limit strip 22, the first limit through groove 23, the first groove 24, the recess 25, the first inner inclined surface 251, the third inner inclined surface 252, the convex portion 253, the second inner inclined surface 254, the circular surface 255, the third limit through groove 26, the adjusting sleeve 3, the second gear 31, the second convex tooth 311, the second inclined surface 312, the second locking surface 313, the second groove 32, the convex portion 33, the third outer inclined surface 331, the fourth outer inclined surface 332, the connecting body 34, the protruding portion 341, the elastic member 4, the clamp 5, the middle limit sleeve 6, the protrusion 61, the first outer inclined surface 62, the first step 63, the second step 64, the circular arc surface 65, the second outer inclined surface 66, 67, the fourth inner inclined surface 671, the fifth inner inclined surface, the gear sleeve 7, the circular arc surface 672, the circular arc surface, Third tooth 71, catch 72.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
The first embodiment is as follows:
as shown in fig. 1 to 10, the present embodiment describes an armrest rotation adjustment device for a vehicle, which includes: the automobile armrest comprises a shaft body 1, an elastic part 4, a locking sleeve 2, a middle limiting sleeve 6 and an adjusting sleeve 3 connected with an automobile armrest, wherein the shaft body 1 is a metal shaft body, the locking sleeve 2 is a metal locking sleeve, the middle limiting sleeve 6 is a plastic limiting sleeve, and the adjusting sleeve 3 is a metal adjusting sleeve; the elastic element 4, the locking sleeve 2, the middle limiting sleeve 6 and the adjusting sleeve 3 are respectively sleeved on the shaft body 1, so that the elastic element 4, the locking sleeve 2, the middle limiting sleeve 6 and the adjusting sleeve 3 are mutually matched on the shaft body 1 to move so as to lift, adjust and position the handrail connected to the adjusting sleeve 3 and move freely downward, and the specific matching structure and the using method are as follows.
One end of the elastic part 4 is connected with the shaft body 1, the other end of the elastic part 4 is abutted against one end face of the locking sleeve 2, the locking sleeve 2 comprises a first groove 24 and a first gear 21, and a limiting structure for limiting the relative rotation of the inner wall of the locking sleeve 2 and the outer wall of the shaft body 1 is arranged between the inner wall of the locking sleeve 2 and the outer wall of the shaft body; wherein limit structure only restricts locking cover 2 and the relative rotation of axis body 1, but locking cover 2 still can be followed the axial and slided, and wherein elastic component 4 is the spring.
The adjusting sleeve 3 is positioned at one side of the first gear 21, the adjusting sleeve 3 comprises a second groove 32 and a second gear 31, the first groove 24 and the second groove 32 are spliced to form an accommodating cavity, and the first gear 21 and the second gear 31 are meshed with each other; each first convex tooth 211 of the first gear 21 comprises a first inclined surface 212 and a first locking surface 213, each second convex tooth 311 of the second gear 31 comprises a second inclined surface 312 and a second locking surface 313, the first inclined surface 212 is matched with the second inclined surface 312, the first locking surface 213 is matched with the second locking surface 313, the first locking surface 213 and the second locking surface 313 are both planes, so that a locking effect is achieved after the first locking surface 213 and the second locking surface 313 are mutually attached, the adjusting sleeve 3 cannot rotate towards the front side of the shaft body 1, locking is achieved in a downward rotating direction after the automobile armrest is lifted and adjusted, and the first inclined surface 212 and the second inclined surface 312 are matched and guided after the adjusting sleeve 3 rotates towards the rear side of the shaft body 1, so that the second convex tooth 311 crosses over the first convex tooth 211 to achieve lifting and adjusting of the automobile armrest.
The middle limiting sleeve 6 is arranged in the accommodating cavity, at least one concave recess 25 is formed on the inner wall of the first groove 24, a concave recess 67 and at least one convex portion 61 correspondingly matched with the concave recess 25 are formed on the middle limiting sleeve 6, the convex portions 61 are recessed into the concave recess 25, the number of the convex portions 61 is preferably three, and the number of the concave recesses 25 is also preferably three. The concave 25 comprises a first inner inclined surface 251, the convex 61 comprises a first outer inclined surface 62 matched with the first inner inclined surface 251 and a guide part, the concave 25 is provided with a convex 253 extending from the upper end of the first inner inclined surface 251, the shaft body, the middle stop collar and the adjusting sleeve are arranged in a superposition mode, when the middle stop collar 6 rotates around the shaft axis to the front side direction of the shaft body 1, the convex 61 passes over the convex 253 under the action of the guide part, the convex 33 is formed on the inner wall of the second groove 32, the convex 33 is sunk into the concave 67, and the width W1 of the concave 67 is larger than the width W2 of the convex 33; the width W1 of the indent 67 and the width W2 of the bump 33 are set to realize that the bump 33 can move three times in the indent 67, so as to realize the three-gear lifting adjustment of the automobile armrest, and certainly, the width W1 of the indent 67 and the width W2 of the bump 33 can be correspondingly adjusted to realize that the bump 33 can move two or four times in the indent 67, so as to realize the lifting adjustment of the armrest with more gears or less gears; the first inner slope 251 and the first outer slope 62 are provided to allow the projection 61 to leave the recess 25 to form a space between the first gear 21 and the second gear 31.
Convex part 253 includes the second inner inclined plane 254 that links up with first inner inclined plane 251 and is located the round surface 255 of top surface both ends, when needing to transfer the car handrail, adjusting sleeve 3 is rotatory to axis body 1 front side, and convex part 253 blocks protruding 61 to make lug 33 on the adjusting sleeve 3 can move to the initiating terminal of indent 67 by the tail end of indent 67, for the car handrail transfers back again can go on lifting the regulation and prepare, the setting of round surface 255 is convenient for protruding 61 to cross convex part 253.
The automobile armrest is adjusted in three gears, and the specific method is as follows:
the automobile armrest is pulled up for the first time, the adjusting sleeve 3 is driven to rotate around the axis of the adjusting sleeve to the rear side direction of the shaft body 1, the protruding block 33 moves for the first time in the inner concave 67, the locking sleeve 2 moves towards the elastic element 4 under the guiding and matching of the first inclined surface 212 and the second inclined surface 312 in the moving process, the elastic element 4 is pressed to contract, the first gear 21 and the second gear 31 are separated from each other, the second convex tooth 311 passes through the first convex tooth 211 for the first time, the elastic element 4 extends to drive the locking sleeve 2 to move towards the adjusting sleeve 3, the first gear 21 and the second gear 31 are meshed with each other, and therefore the first gear lifting adjustment of the automobile armrest is completed.
The automobile armrest is pulled up for the second time on the basis of the first pulling up, the adjusting sleeve 3 is driven to rotate around the axis of the adjusting sleeve for the second time towards the rear side of the shaft body 1, the protruding block 33 moves for the second time in the inner concave 67, the locking sleeve 2 moves towards the elastic piece 4 under the mutual guiding and matching of the first inclined surface 212 and the second inclined surface 312 in the moving process, the elastic piece 4 is compressed and contracted, the first gear 21 and the second gear 31 are separated from each other, the second convex tooth 311 passes through the first convex tooth 211 for the second time, the elastic piece 4 extends to drive the locking sleeve 2 to move towards the adjusting sleeve 3, the first gear 21 and the second gear 31 are meshed with each other, and therefore the second gear lifting up adjustment of the automobile armrest is completed.
The automobile armrest is pulled up for the third time on the basis of the second pulling, the adjusting sleeve 3 is driven to rotate around the axis of the adjusting sleeve towards the rear side of the shaft body 1 for the third time, the protruding block 33 moves for the third time in the inner concave 67, the locking sleeve 2 moves towards the elastic piece 4 under the mutual guiding and matching of the first inclined surface 212 and the second inclined surface 312 in the moving process, the elastic piece 4 is compressed and contracted, the first gear 21 and the second gear 31 are separated from each other, the second convex tooth 311 passes through the first convex tooth 211 for the third time, the elastic piece 4 extends to drive the locking sleeve 2 to move towards the adjusting sleeve 3, the first gear 21 and the second gear 31 are meshed with each other, and the third gear lifting adjustment of the automobile armrest is completed.
After the third gear of the automobile handrail is adjusted, the convex block 33 moves to be abutted against the tail end of the inner recess 67, when the handrail needs to be lowered, the adjusting sleeve 3 continuously rotates around the axis thereof to the rear side direction of the shaft body 1, the middle limiting sleeve 6 is driven to rotate around the axis thereof to the rear side direction of the shaft body 1, the protrusion 61 passes over the convex part 253 to leave the inner recess 25 under the matching of the first inner inclined surface 251 and the first outer inclined surface 62, the end part of the protrusion 61 is contacted with the inner bottom surface of the first groove 24, the first gear 21 and the second gear 31 are separated from each other, then the automobile handrail is controlled to be lowered, the adjusting sleeve 3 rotates around the axis thereof to the front side direction of the shaft body 1, the middle limiting sleeve 6 is also driven to rotate around the axis thereof to the front side direction of the shaft body 1 under the action of the elastic element 4, when the protrusion 61 is blocked by the convex part 253 to stop the rotation of the middle limiting sleeve 6, the continuously rotating adjusting sleeve 3 drives the convex block 33 to move from the tail end of the inner recess 67 to be abutted against the start end of the concave 67, and the middle limiting sleeve 6 is driven to rotate around the axis of the middle limiting sleeve towards the front side of the shaft body 1 again, so that the protrusion 61 goes over the convex part 253 and sinks into the concave part 25, the elastic part 4 drives the locking sleeve 2 to move towards the adjusting sleeve 3, the first gear 21 and the second gear 31 are meshed with each other, the automobile handrail is lowered, and the automobile handrail is locked after being lowered.
Preferably, the recess 25 further includes a third inner inclined surface 252, the protrusion 61 is formed with a first step 63 and a second step 64 by being recessed, the end portion of the first step 63 facing the third inner inclined surface 252 and the end portion of the second step 64 facing the third inner inclined surface 252 are both formed with a second outer inclined surface 66 and an arc surface 65, the first step 63 is higher than the protrusion 253, the first step 63 is disposed such that the protrusion 61 is easily blocked by the protrusion 253, and the arc surface 65 is disposed such that when the middle position-limiting sleeve 6 rotates again around its axial line toward the front side of the shaft body 1, the protrusion 61 more easily passes over the protrusion 253, thereby further improving the usability, and the first step 63, the second step 64, the arc surface 65 and the second outer inclined surface 66 constitute a protruding guide portion.
In this embodiment, still include gear sleeve 7, gear sleeve 7 cup joints on first gear 21, and gear sleeve 7's third dogtooth 71 position corresponds with first dogtooth 211 position of first gear 21, and the height and the cross sectional shape of third dogtooth 71 are unanimous with the height and the cross sectional shape of first dogtooth 211, and gear sleeve 7's setting has increased the meshing area of first gear 21 for it is more reliable and more stable to mesh with second gear 31, promotes and adjusts the result of use.
Preferably, the gear sleeve 7 is provided with a plurality of buckles 72 arranged in an annular array, each buckle 72 is respectively buckled at the lower edge of the first gear 21, the circumferential side of the first gear 21 is further provided with a plurality of positioning grooves 215 arranged in an annular array, each buckle 72 is respectively positioned in the plurality of positioning grooves 215, the structure of the gear sleeve 7 is stable and reliable in installation, and the buckles 72 and the gear sleeve 7 are combined into an integral plastic gear sleeve.
In this embodiment, still include clamp 5, clamp 5 cup joints and is fixed in on the axis body 1, and the one end of elastic component 4 is contradicted at the terminal surface of clamp 5, and wherein clamp 5 adopts the metal clamp, and the metal clamp cup joints through warping and fixes on axis body 1, and its setting makes spring simple to operate.
In the embodiment, the limiting structure comprises a plurality of first limiting strips 11 formed on the shaft body 1 and a plurality of first limiting through grooves 23 formed on the inner wall of the locking sleeve 2, the plurality of first limiting strips 11 are arranged at intervals to form at least one second limiting through groove 12, the plurality of first limiting through grooves 23 are arranged at intervals to form at least one second limiting strip 22, the first limiting strips 11 are correspondingly inserted into the first limiting through grooves 23, the second limiting strips 22 are correspondingly inserted into the second limiting through grooves 12, locking cover 2 simple to operate that its structure set up to can be stable, reliable axial slip on the axis body 1, the gliding rotation that has restricted locking cover 2 simultaneously, preferably, first spacing 11 sets up to six, and the spacing logical groove 12 of corresponding second forms six, and first spacing logical groove 23 sets up to six, and the spacing 22 of corresponding second forms six.
In this embodiment, the outer end of the adjusting sleeve 3 is provided with a connector 34, a plurality of protrusions 341 arranged in an annular array are formed on the periphery of the connector 34, the tail end of the automobile armrest is provided with a mounting groove matched with the connector 34, and the mounting groove is provided with an caulking groove correspondingly matched with the protrusion 341, so that when the automobile armrest is mounted, only the connector 34 is placed in the mounting groove, and meanwhile, the protrusion 341 is embedded in the caulking groove to mount the automobile armrest.
In this embodiment, the recess 67 includes a fourth inner slope 671 and a fifth inner slope 672, the bump 33 includes a third outer slope 331 matching with the fourth inner slope 671 and a fourth outer slope 332 matching with the fifth inner slope 672, the third outer slope 331 and the fourth outer slope 332 are both inclined toward the middle of the bump 33, and the fourth inner slope 671 and the fifth inner slope 672 are respectively inclined toward the outside.
Example two:
as shown in fig. 11 and 12, the structure of the armrest rotation adjustment device for a vehicle described in this embodiment is similar to that of the embodiment, and the difference is only that the limiting structure includes a third limiting strip 13 formed on the shaft body 1 and a third limiting through groove 26 formed on the inner wall of the locking sleeve 2, and the third limiting strip 13 is correspondingly inserted into the third limiting through groove 26, or the limiting structure includes a third limiting through groove 26 formed on the shaft body 1 and a third limiting strip 13 formed on the inner wall of the locking sleeve 2, and the third limiting strip 13 is correspondingly inserted into the third limiting through groove 26. The locking sleeve 2 is convenient to install, can stably and reliably axially slide on the shaft body 1, and limits the rotation of the locking sleeve 2 while sliding.
The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by anyone in the light of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as those of the present application, fall within the protection scope of the present invention.
Claims (10)
1. An automobile armrest rotation adjustment device, comprising: the automobile armrest comprises a shaft body (1), an elastic element (4), a locking sleeve (2), a middle limiting sleeve (6) and an adjusting sleeve (3) connected with an automobile armrest, wherein the elastic element (4), the locking sleeve (2), the middle limiting sleeve (6) and the adjusting sleeve (3) are respectively sleeved on the shaft body (1);
one end of the elastic part (4) is connected with the shaft body (1), the other end of the elastic part (4) is abutted against one end face of the locking sleeve (2), the locking sleeve (2) comprises a first groove (24) and a first gear (21), and a limiting structure for limiting relative rotation of the locking sleeve (2) and the shaft body (1) is arranged between the inner wall of the locking sleeve (2) and the outer wall of the shaft body;
the adjusting sleeve (3) is positioned on one side of the first gear (21), the adjusting sleeve (3) comprises a second groove (32) and a second gear (31), the first groove (24) and the second groove (32) are spliced to form an accommodating cavity, and the first gear (21) and the second gear (31) are meshed with each other; each first convex tooth (211) of the first gear (21) comprises a first inclined surface (212) and a first locking surface (213), each second convex tooth (311) of the second gear (31) comprises a second inclined surface (312) and a second locking surface (313), the first inclined surface (212) is matched with the second inclined surface (312), and the first locking surface (213) is matched with the second locking surface (313);
the middle limiting sleeve (6) is arranged in the accommodating cavity, at least one concave groove (25) is formed on the inner wall of the first groove (24), the concave groove (67) and at least one protrusion (61) correspondingly matched with the concave groove (25) are formed on the middle limiting sleeve (6), the protrusion (61) is sunk into the concave groove (25), and the concave part (25) comprises a first inner inclined surface (251), the convex part (61) comprises a first outer inclined surface (62) matched with the first inner inclined surface (251) and a guide part, a convex part (253) is formed on the concave part (25) in an extending way at the upper end of the first inner inclined surface (251), when the middle limit sleeve (6) rotates around the axis thereof to the front side direction of the shaft body (1), the protrusion (61) is made to pass over the protrusion (253) under the action of the guiding part, the inner wall of the second groove (32) is formed with a bump (33), the bump (33) is sunk into the concave part (67), and the width W1 of the recess (67) is larger than the width W2 of the bump (33).
2. The vehicle armrest rotation adjusting device according to claim 1, wherein the recess (25) further comprises a third inner inclined surface (252), the protrusion (61) is formed with a first step (63) and a second step (64) by being recessed, the end of the first step (63) facing the third inner inclined surface (252) and the end of the second step (64) facing the third inner inclined surface (252) are formed with a second outer inclined surface (66) and a circular arc surface (65), and the first step (63) is higher than the protrusion (253).
3. The automobile armrest rotation adjusting device according to claim 1, further comprising a gear sleeve (7), wherein the gear sleeve (7) is sleeved on the first gear (21), a position of a third convex tooth (71) of the gear sleeve (7) corresponds to a position of the first convex tooth (211) of the first gear (21), and a height and a cross-sectional shape of the third convex tooth (71) are consistent with a height and a cross-sectional shape of the first convex tooth (211).
4. The rotary adjusting device for the armrest of the automobile as claimed in claim 3, characterized in that the gear sleeve (7) is provided with a plurality of snap hooks (72) arranged in an annular array, and each snap hook (72) is respectively buckled at the lower edge of the first gear (21).
5. The rotation adjustment device for the armrest of the automobile according to claim 1, characterized in that the rotation adjustment device further comprises a clamp (5), the clamp (5) is fixed on the shaft body (1) in a sleeved manner, and one end of the elastic member (4) abuts against an end surface of the clamp (5).
6. The rotary adjusting device for the automobile armrest according to claim 1, wherein the limiting structure comprises a plurality of first limiting strips (11) formed on the shaft body (1) and a plurality of first limiting through grooves (23) formed on the inner wall of the locking sleeve (2), the plurality of first limiting strips (11) are arranged at intervals to form at least one second limiting through groove (12), the plurality of first limiting through grooves (23) are arranged at intervals to form at least one second limiting strip (22), the first limiting strips (11) are correspondingly inserted into the first limiting through grooves (23), and the second limiting strips (22) are correspondingly inserted into the second limiting through grooves (12).
7. The automobile armrest rotation adjusting device according to claim 1, wherein the limiting structure comprises a third limiting strip (13) formed on the shaft body (1) and a third limiting through groove (26) formed on the inner wall of the locking sleeve (2), the third limiting strip (13) is correspondingly inserted into the third limiting through groove (26), or the limiting structure comprises a third limiting through groove (26) formed on the shaft body (1) and a third limiting strip (13) formed on the inner wall of the locking sleeve (2), and the third limiting strip (13) is correspondingly inserted into the third limiting through groove (26).
8. The rotary adjusting device of the armrest for the automobile as claimed in claim 1, characterized in that the outer end of the adjusting sleeve (3) is provided with a connecting body (34), and the peripheral side of the connecting body (34) is formed with a plurality of protrusions (341) arranged in an annular array.
9. The armrest rotation adjustment device according to claim 1, wherein the protrusion (253) comprises a second inner slope (254) engaged with the first inner slope (251), and rounded surfaces (255) at both ends of the top surface.
10. The armrest rotation adjustment device according to any one of claims 1-9, wherein the recess (67) includes a fourth inner slope (671) and a fifth inner slope (672), and the projection (33) includes a third outer slope (331) cooperating with the fourth inner slope (671) and a fourth outer slope (332) cooperating with the fifth inner slope (672).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210596712.9A CN114670728B (en) | 2022-05-30 | 2022-05-30 | Automobile armrest rotation adjusting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115257488A (en) * | 2022-08-08 | 2022-11-01 | 明阳科技（苏州）股份有限公司 | Seat armrest adjusting device of one-way locking |
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| JP2007283908A (en) * | 2006-04-17 | 2007-11-01 | Nhk Spring Co Ltd | Armrest device |
| US20080150341A1 (en) * | 2006-11-29 | 2008-06-26 | Bos Gmbh & Co. Kg | Center armrest with parallel adjustment capability |
| US9156385B1 (en) * | 2014-04-30 | 2015-10-13 | Honda Motor Co., Ltd. | Adjustable arm rest and methods of manufacture and use thereof |
| CN108638927A (en) * | 2018-04-27 | 2018-10-12 | 延锋安道拓座椅机械部件有限公司 | Armrest adjustment mechanism |
| CN209395645U (en) * | 2018-12-29 | 2019-09-17 | 宁波继峰汽车零部件股份有限公司 | A kind of multi gear position side handrail that can be packed up automatically |
| CN113085681A (en) * | 2021-05-08 | 2021-07-09 | 恺博(常熟)座椅机械部件有限公司 | Large-stroke armrest mechanism of seat |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007283908A (en) * | 2006-04-17 | 2007-11-01 | Nhk Spring Co Ltd | Armrest device |
| US20080150341A1 (en) * | 2006-11-29 | 2008-06-26 | Bos Gmbh & Co. Kg | Center armrest with parallel adjustment capability |
| US9156385B1 (en) * | 2014-04-30 | 2015-10-13 | Honda Motor Co., Ltd. | Adjustable arm rest and methods of manufacture and use thereof |
| CN108638927A (en) * | 2018-04-27 | 2018-10-12 | 延锋安道拓座椅机械部件有限公司 | Armrest adjustment mechanism |
| CN209395645U (en) * | 2018-12-29 | 2019-09-17 | 宁波继峰汽车零部件股份有限公司 | A kind of multi gear position side handrail that can be packed up automatically |
| CN113085681A (en) * | 2021-05-08 | 2021-07-09 | 恺博(常熟)座椅机械部件有限公司 | Large-stroke armrest mechanism of seat |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115257488A (en) * | 2022-08-08 | 2022-11-01 | 明阳科技（苏州）股份有限公司 | Seat armrest adjusting device of one-way locking |
| CN115257488B (en) * | 2022-08-08 | 2023-11-17 | 明阳科技（苏州）股份有限公司 | Armrest adjusting device of seat of one-way locking |
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| CN114670728B (en) | 2022-08-09 |
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