CN217124621U - Take car headrest folding device of stay cord - Google Patents
Take car headrest folding device of stay cord Download PDFInfo
- Publication number
- CN217124621U CN217124621U CN202220344532.7U CN202220344532U CN217124621U CN 217124621 U CN217124621 U CN 217124621U CN 202220344532 U CN202220344532 U CN 202220344532U CN 217124621 U CN217124621 U CN 217124621U
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- pillow frame
- rod
- unlocking
- push rod
- pressing block
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Abstract
The utility model provides a take automotive headrest folding device of stay cord, including the pillow frame, the connecting rod, the pillow frame can be connected on the horizontal pole at connecting rod top with rotating, set up locking mechanical system on the pillow frame, the one end and the locking mechanical system of stay cord link mutually, the other end of stay cord passes the pillow frame, the connecting rod stretches out outside the connecting rod, the middle part at the horizontal pole is connected to the pillow frame, locking mechanical system's concrete structure does, be provided with the stopper on the horizontal pole of pillow frame both sides respectively, can be provided with respectively on the pillow frame outer wall that corresponds with the stopper with rotating and separate the locking piece, it is connected with unblock piece canceling release mechanical system to separate the locking piece, be provided with release mechanism in the pillow frame, release mechanism is connected with the stay cord, reset spring has been put to the middle part cover at the horizontal pole. The utility model has the advantages that: synchronous unlocking and locking of the two sides of the pillow frame are achieved through the unlocking blocks on the two sides of the pillow frame, the unlocking transmission structure of the unlocking blocks can keep stress balance, deformation of the transmission structure caused by long-time use is avoided, and unlocking and locking of the pillow frame can be smoothly carried out.
Description
Technical Field
The utility model relates to a car headrest makes technical field, especially indicates a take car headrest folding device of stay cord.
Background
The prior Chinese patent application with the application number of CN202010406507.2 named as 'foldable headrest with pull rope' discloses a foldable headrest with pull rope, which comprises a pillow body, a connecting frame and a pillow frame, wherein the pillow frame is arranged on the connecting frame, the pillow body is connected on the pillow frame, the connecting frame is provided with a locking mechanism and a pillow frame reset mechanism, the connecting frame is provided with a transmission mechanism, a roller and a reset mechanism of the roller, the pull rope consists of a plurality of wires, the lower ends of the plurality of wires penetrate through the wire sleeve to extend out of the connecting frame, the upper ends of the plurality of wires are respectively connected with the roller, one end of the transmission mechanism is linked with the roller, the other end of the transmission mechanism is linked with the locking mechanism, when one end of a pull rope extending out of the connecting frame is pulled, the roller is pulled by the rope to rotate, the pillow frame is unlocked by the locking mechanism, and when no pulling force exists on the pull rope, the reset mechanism of the roller drives the roller to rotate reversely to reset. The advantages are that: the direct connection of the pull rope and the headrest rotation triggering structure is avoided, so that the stress of the connection part of the pull rope and the pull rope tension transmission structure is uniform, the pull rope is not easy to damage, and the service life is long. However, the triggering and locking of the headrest structure are performed on one side, the left and right are unbalanced, and the deformation of the transmission structure is easy to cause that the state switching of the headrest structure cannot be smoothly realized, so that the structure of the headrest needs to be further improved.
Disclosure of Invention
The utility model aims to solve the technical problem that to above-mentioned prior art current situation and provide a rotation and location steady, control the stress balance, excellent in use effect's automotive headrest folding device of taking the stay cord.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: this take car headrest folding device of stay cord, including the pillow frame that can fix car headrest, can be with the connecting rod of pillow frame connection on car seat, the pillow frame can be connected on the horizontal pole at connecting rod top with rotating, is provided with the locking mechanical system that can fix a position the pillow frame on the horizontal pole and can unblock pillow frame when the pulling stay cord on the pillow frame, and the one end and the locking mechanical system of stay cord link mutually, and the other end of stay cord passes pillow frame, connecting rod and stretches out outside the connecting rod, its characterized in that: the pillow frame is connected to the middle of the cross rod, the specific structure of the locking mechanism is that limiting blocks are arranged on the cross rods on two sides of the pillow frame respectively, unlocking blocks are arranged on the outer wall of the pillow frame corresponding to the limiting blocks respectively in a rotatable mode, the unlocking blocks are connected with unlocking block reset mechanisms which enable the unlocking blocks to be abutted against the corresponding limiting blocks to position the pillow frame, unlocking mechanisms which can synchronously drive the unlocking blocks to be separated from the corresponding limiting blocks are arranged in the pillow frame, the unlocking mechanisms are connected with pull ropes, and reset springs which enable the pillow frame to rotate relative to the cross rod when the limiting blocks are separated from the corresponding unlocking blocks are sleeved in the middle of the cross rod.
As an improvement, the release mechanism can preferably include driving body, push rod, connecting rod, swinging arms, first pull rod and second pull rod, driving body and push rod can be connected on the pillow frame with rotating respectively, the one end of driving body is connected with the stay cord, the other end of driving body is connected with the one end transmission of push rod, is connected with the pivot in the middle part of push rod be provided with push rod canceling release mechanical system in the pivot, the one end of push rod is connected with the connecting rod, and the other end of push rod stretches out the pillow frame and is connected with first pull rod rotation, first pull rod is connected with first unblock piece, the connecting rod is connected with the one end of swinging arms, the other end of swinging arms stretches out the pillow frame and is connected with the second pull rod, the second pull rod is connected with second unblock piece.
In a further improvement, the driving body may be a rotating wheel, and a guide groove into which the pulling rope can be inserted is circumferentially provided on a wheel surface of the rotating wheel.
In a further improvement, a protrusion capable of abutting against the push rod can be preferably arranged on the side part of the rotating wheel, and the side wall of the protrusion abutting against the push rod is a plane.
The improved structure is characterized in that the push rod can be preferably in a V shape, the rotating wheel is located above the rotating shaft, the upper end of the push rod is in abutting contact with the protrusion, the lower end of the push rod is connected with the first pull rod, and the middle of the push rod is connected with the connecting rod.
The connecting rod can preferably comprise an upper connecting ring, a lower connecting ring and a straight rod, the upper end of the straight rod is fixed with the upper connecting ring, the lower end of the straight rod is fixed with the lower connecting ring, the upper connecting ring is rotatably connected with the middle part of the push rod, and the lower connecting ring is rotatably connected with the oscillating rod.
As an improvement, the push rod reset mechanism can be preferably a push rod reset spring, the push rod reset spring is sleeved on the rotating shaft, one end of the push rod reset spring is connected with the push rod, and the other end of the push rod reset spring is connected with the pillow frame.
As an improvement, a positioning shaft can be preferably and transversely arranged on the pillow frame in a penetrating mode, a first unlocking block is connected with one end of the positioning shaft in a rotating mode, a second unlocking block is connected with the other end of the positioning shaft in a rotating mode, the unlocking block resetting mechanism comprises a first pressing block spring and a second pressing block spring, the first pressing block spring and the second pressing block spring are respectively sleeved on the positioning shaft in a sleeving mode, one end of the first pressing block spring is connected with the first unlocking block, the other end of the first pressing block spring is connected with a first convex column on the outer wall of the pillow frame, one end of the second pressing block spring is connected with a second unlocking block, and the other end of the second pressing block spring is connected with a second convex column on the outer wall of the pillow frame.
Further improve, unblock piece canceling release mechanical system can preferably still include first briquetting and second briquetting, first briquetting can be connected on the location is epaxial with the second briquetting with rotating, first briquetting pushes up with first unblock piece mutually and touches, first briquetting is connected with first briquetting spring, the second briquetting pushes up with second unblock piece mutually and touches, the second briquetting is connected with second briquetting spring.
As a modification, a wire guide sleeve through which the pulling rope passes may be preferably provided on the top of the side wall of the pillow frame.
Compared with the prior art, the utility model has the advantages of: synchronous unlocking and locking of the two sides of the pillow frame are realized through the unlocking blocks on the two sides of the pillow frame, the unlocking transmission structure of the unlocking blocks can keep the stress balance, the deformation condition caused by long-time use of the transmission structure is avoided, and the unlocking and locking of the pillow frame can be smoothly carried out; the unlocking mechanisms are connected with the unlocking blocks on the two sides of the pillow frame, and the unlocking mechanisms are connected with one pull rope, so that the two unlocking blocks can be unlocked simultaneously only by pulling the pull rope once, and the pillow frame unlocking device is simple and labor-saving to operate and high in unlocking efficiency; the unlocking mechanisms are all located in the pillow frame, occupied space is small, the pillow frame can also play a role in protecting the unlocking mechanisms, and service life of the device is prolonged.
Drawings
FIG. 1 is a perspective view of an embodiment of the present invention;
FIG. 2 is a perspective view of FIG. 1 at another angle;
FIG. 3 is a perspective view of FIG. 2 at another angle;
FIG. 4 is a perspective view of FIG. 3 at another angle;
FIG. 5 is a cross-sectional view of FIG. 3 with portions of the pillow block and the positioning shaft removed;
FIG. 6 is a cross-sectional view of the pillow frame of FIG. 4 with portions broken away;
FIG. 7 is a cross-sectional view of the pillow block of FIG. 6 with a portion of the pillow block further removed;
FIG. 8 is a perspective view of the connecting rod of FIG. 6 after rotation;
FIG. 9 is an exploded view of the structure of FIG. 1;
FIG. 10 is a further exploded view of the structure of FIG. 9;
fig. 11 is a perspective view of the present invention applied to a headrest;
fig. 12 is an exploded view of the structure of fig. 11.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
As shown in fig. 1 to 12, the folding device of an automobile headrest with a pulling rope of the present embodiment includes a pillow frame 1 capable of fixing an automobile headrest 6, a connecting rod 2 capable of connecting the pillow frame 1 to an automobile seat, the pillow frame 1 is rotatably connected to a cross rod 21 at the top of the connecting rod 2, a locking mechanism capable of positioning the pillow frame 1 on the cross rod 21 and unlocking the pillow frame 1 when the pulling rope 3 is pulled is disposed on the pillow frame 1, one end of the pulling rope 3 is linked with the locking mechanism, the other end of the pulling rope 3 passes through the pillow frame 1 and the connecting rod 2 and extends out of the connecting rod 2, the pillow frame 1 is connected to the middle of the cross rod 21, the locking mechanism has a specific structure that a limiting block 22 is disposed on each cross rod 21 at both sides of the pillow frame 1, an unlocking block is rotatably disposed on each outer wall of the pillow frame 1 corresponding to the limiting block 22, the unlocking block is connected to an unlocking block resetting mechanism capable of abutting against the corresponding limiting block 22 to position the pillow frame 1, an unlocking mechanism which can synchronously drive the unlocking block to be separated from the corresponding limiting block 22 is arranged in the pillow frame 1, the unlocking mechanism is connected with the pull rope 3, and a return spring 23 which can enable the pillow frame 1 to rotate relative to the cross rod 21 when the limiting block 22 is separated from the corresponding unlocking block is sleeved in the middle of the cross rod 21.
The unlocking mechanism comprises a driving body 4, a push rod 5, a connecting rod 51, a swinging rod 52, a first pull rod 53 and a second pull rod 54, wherein the driving body 4 and the push rod 5 are respectively rotatably connected to the pillow frame 1, one end of the driving body 4 is connected with the pull rope 3, the other end of the driving body 4 is in transmission connection with one end of the push rod 5, the middle part of the push rod 5 is connected with a rotating shaft 50, a push rod resetting mechanism is arranged on the rotating shaft 50, one end of the push rod 5 is connected with the connecting rod 51, the other end of the push rod 5 extends out of the pillow frame 1 to be rotatably connected with the first pull rod 53, the first pull rod 53 is connected with a first unlocking block 55, the connecting rod 51 is connected with one end of the swinging rod 52, the other end of the swinging rod 52 extends out of the pillow frame 1 to be connected with the second pull rod 54, and the second pull rod 54 is connected with a second unlocking block 56. The driving body 4 is a rotary wheel, and a guide groove into which the rope 3 can be fitted is provided on the circumference of the wheel surface of the rotary wheel. The axle of the rotating wheel is also sleeved with a torsion spring 42 for resetting. One end of the torsion spring 42 is fixed to the rotating wheel, and the other end of the torsion spring 42 is pressed against the rotating shaft 50. A protrusion 41 capable of contacting with the push rod 5 is arranged on the side of the rotating wheel, and the side wall of the protrusion 41 contacting with the push rod 5 is a plane.
The push rod 5 is V-shaped, the rotating wheel is positioned above the rotating shaft 50, the upper end of the push rod 5 is in top contact with the bulge 41, the lower end of the push rod 5 is connected with the first pull rod 53, and the middle part of the push rod 5 is connected with the connecting rod 51. The connecting rod 51 comprises an upper connecting ring, a lower connecting ring and a straight rod, the upper end of the straight rod is fixed with the upper connecting ring, the lower end of the straight rod is fixed with the lower connecting ring, the upper connecting ring is rotatably connected with the middle part of the push rod 5, and the lower connecting ring is rotatably connected with the oscillating rod 52. The push rod reset mechanism is a push rod reset spring 57, the push rod reset spring 57 is sleeved on the rotating shaft 50, one end of the push rod reset spring 57 is connected with the push rod 5, and the other end of the push rod reset spring 57 is connected with the pillow frame 1.
Transversely worn to have put location axle 11 on pillow frame 1, first unblock piece 55 rotates with the one end of location axle 11 and is connected, second unblock piece 56 rotates with the other end of location axle 11 and is connected, unblock piece canceling release mechanical system includes first briquetting spring 12 and second briquetting spring 13, first briquetting spring 12 and second briquetting spring 13 overlap respectively on location axle 11, the one end of first briquetting spring 12 is connected with first unblock piece 55, the other end of first briquetting spring 12 is connected with first projection 14 on the pillow frame 1 outer wall, the one end of second briquetting spring 13 is connected with second unblock piece 56, the other end of second briquetting spring 13 is connected with second projection 15 on the pillow frame outer wall. The first unlocking piece 55 and the corresponding stopper 22 are provided with a notch at the abutting position, and the notch can be buckled on the sharp corner of the corresponding stopper 22. The second unlocking piece 56 is also provided with a notch portion at the abutting position. The unlocking block resetting mechanism further comprises a first pressing block 16 and a second pressing block 17, the first pressing block 16 and the second pressing block 17 can be rotatably connected to the positioning shaft 11, the first pressing block 16 is in abutting contact with the first unlocking block 55, the first pressing block 16 is connected with the first pressing block spring 12, the second pressing block 17 is in abutting contact with the second unlocking block 56, and the second pressing block 17 is connected with the second pressing block spring 13.
A wire sleeve 10 is arranged on the top of the side wall of the pillow frame 1, and the pull rope 3 penetrates through the wire sleeve 10.
The working principle is as follows: the rotating wheel rotates to drive the push rod to swing by pulling the pull rope, and the push rod drives the first pull rod and the second pull rod to move, so that the first unlocking block and the second unlocking block are pulled to be separated from the corresponding limiting blocks simultaneously, and the pillow frame is reset under the action of the reset spring. And reversely pushing the pillow frame to enable the first unlocking block and the second unlocking block to be buckled with the corresponding limiting blocks, and then positioning the pillow frame again.
Claims (10)
1. The utility model provides a take car headrest folding device of stay cord, including pillow frame (1) that can fixed car headrest (6), can connect connecting rod (2) on car seat with pillow frame (1), pillow frame (1) can be connected on horizontal pole (21) at connecting rod (2) top with rotating, be provided with on pillow frame (1) and can fix a position pillow frame (1) on horizontal pole (21) and can unblock the locking mechanical system of pillow frame (1) when pulling stay cord (3), the one end and the locking mechanical system of stay cord (3) link mutually, the other end of stay cord (3) passes pillow frame (1), connecting rod (2) and stretches out outside connecting rod (2), its characterized in that: the pillow frame (1) is connected to the middle of a cross rod (21), the specific structure of the locking mechanism is that limiting blocks (22) are arranged on the cross rods (21) on two sides of the pillow frame (1), unlocking blocks are arranged on the outer wall of the pillow frame (1) corresponding to the limiting blocks (22) in a rotatable mode respectively, the unlocking blocks are connected with unlocking block reset mechanisms capable of enabling the unlocking blocks to be abutted to the corresponding limiting blocks (22) to position the pillow frame (1), the unlocking mechanisms capable of synchronously driving the unlocking blocks to be separated from the corresponding limiting blocks (22) are arranged in the pillow frame (1), the unlocking mechanisms are connected with pull ropes (3), and reset springs (23) capable of enabling the pillow frame (1) to rotate relative to the cross rods (21) when the limiting blocks (22) are separated from the corresponding unlocking blocks are sleeved in the middle of the cross rod (21).
2. The automotive headrest folding device according to claim 1, characterized in that: the unlocking mechanism comprises a driving body (4), a push rod (5), a connecting rod (51), a swing rod (52), a first pull rod (53) and a second pull rod (54), wherein the driving body (4) and the push rod (5) are respectively connected to the pillow frame (1) in a rotatable manner, one end of the driving body (4) is connected with the pull rope (3), the other end of the driving body (4) is connected with one end of the push rod (5) in a transmission manner, the middle part of the push rod (5) is connected with a rotating shaft (50), the rotating shaft (50) is provided with a push rod resetting mechanism, one end of the push rod (5) is connected with the connecting rod (51), the other end of the push rod (5) extends out of the pillow frame (1) to be connected with the first pull rod (53) in a rotatable manner, the first pull rod (53) is connected with a first unlocking block (55), and the connecting rod (51) is connected with one end of the swing rod (52), the other end of the swinging rod (52) extends out of the pillow frame (1) and is connected with a second pull rod (54), and the second pull rod (54) is connected with a second unlocking block (56).
3. The automotive headrest folding device according to claim 2, characterized in that: the driving body (4) is a rotating wheel, and a guide groove capable of being embedded into the pull rope (3) is formed in the circumference of the wheel surface of the rotating wheel.
4. The headrest folding device for automobiles according to claim 3, characterized in that: the side part of the rotating wheel is provided with a bulge (41) which can be contacted with the push rod (5), and the side wall of the bulge (41) contacted with the push rod (5) is a plane.
5. The headrest folding device for automobiles according to claim 4, characterized in that: the push rod (5) is V-shaped, the rotating wheel is located above the rotating shaft (50), the upper end of the push rod (5) is in contact with the protrusion (41) in a propping mode, the lower end of the push rod (5) is connected with the first pull rod (53), and the middle of the push rod (5) is connected with the connecting rod (51).
6. The automotive headrest folding device according to claim 5, characterized in that: the connecting rod (51) comprises an upper connecting ring, a lower connecting ring and a straight rod, the upper end of the straight rod is fixed with the upper connecting ring, the lower end of the straight rod is fixed with the lower connecting ring, the upper connecting ring is rotatably connected with the middle of the push rod (5), and the lower connecting ring is rotatably connected with the oscillating rod (52).
7. The automotive headrest folding device according to any one of claims 2 to 6, characterized in that: the push rod reset mechanism is a push rod reset spring (57), the push rod reset spring (57) is sleeved on the rotating shaft (50), one end of the push rod reset spring (57) is connected with the push rod (5), and the other end of the push rod reset spring (57) is connected with the pillow frame (1).
8. The automotive headrest folding device according to any one of claims 2 to 6, characterized in that: the pillow frame is characterized in that a positioning shaft (11) transversely penetrates through the pillow frame (1), a first unlocking block (55) is rotatably connected with one end of the positioning shaft (11), a second unlocking block (56) is rotatably connected with the other end of the positioning shaft (11), the unlocking block resetting mechanism comprises a first pressing block spring (12) and a second pressing block spring (13), the first pressing block spring (12) and the second pressing block spring (13) are respectively sleeved on the positioning shaft (11), one end of the first pressing block spring (12) is connected with the first unlocking block (55), the other end of the first pressing block spring (12) is connected with a first convex column (14) on the outer wall of the pillow frame (1), one end of the second pressing block spring (13) is connected with the second unlocking block (56), and the other end of the second pressing block spring (13) is connected with a second convex column (15) on the outer wall of the pillow frame.
9. The automotive headrest folding device according to claim 8, characterized in that: the unlocking block resetting mechanism further comprises a first pressing block (16) and a second pressing block (17), the first pressing block (16) and the second pressing block (17) can be rotatably connected to the positioning shaft (11), the first pressing block (16) is in mutual abutting contact with the first unlocking block (55), the first pressing block (16) is connected with a first pressing block spring (12), the second pressing block (17) is in mutual abutting contact with the second unlocking block (56), and the second pressing block (17) is connected with a second pressing block spring (13).
10. The automotive headrest folding device according to any one of claims 1 to 6, characterized in that: the top of the side wall of the pillow frame (1) is provided with a wire guide sleeve (10), and the pull rope (3) penetrates through the wire guide sleeve (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220344532.7U CN217124621U (en) | 2022-02-21 | 2022-02-21 | Take car headrest folding device of stay cord |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220344532.7U CN217124621U (en) | 2022-02-21 | 2022-02-21 | Take car headrest folding device of stay cord |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217124621U true CN217124621U (en) | 2022-08-05 |
Family
ID=82622007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220344532.7U Active CN217124621U (en) | 2022-02-21 | 2022-02-21 | Take car headrest folding device of stay cord |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217124621U (en) |
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2022
- 2022-02-21 CN CN202220344532.7U patent/CN217124621U/en active Active
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