CN216401247U - Headrest guide sleeve device - Google Patents
Headrest guide sleeve device Download PDFInfo
- Publication number
- CN216401247U CN216401247U CN202220025215.9U CN202220025215U CN216401247U CN 216401247 U CN216401247 U CN 216401247U CN 202220025215 U CN202220025215 U CN 202220025215U CN 216401247 U CN216401247 U CN 216401247U
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- sleeve
- guide
- guide sleeve
- mounting
- elastic
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- 238000009434 installation Methods 0.000 claims abstract description 37
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a headrest guide sleeve device.A guide rod is arranged in a headrest and comprises a guide sleeve, a locking device and a mounting sleeve; wherein, the guide sleeve is provided with a plug hole for the guide rod to be inserted; the locking device is connected to the guide sleeve and is suitable for acting on the guide rod in the inserting hole to lock the position of the guide rod in the inserting hole; the guide sleeve is also provided with a limiting part and at least one elastic buckle; the guide sleeve is suitable for being inserted into the installation sleeve, and when the guide sleeve is inserted in the installation sleeve in place, the installation sleeve is positioned between the limiting part and the elastic buckle; the limiting part is provided with at least one elastic abutting part which is suitable for abutting against the upper end part of the mounting sleeve; the elastic buckle is suitable for abutting against the lower end part of the mounting sleeve. The utility model can prevent the guide sleeve from moving in the mounting sleeve, thereby ensuring that the headrest is more stably mounted.
Description
Technical Field
The utility model relates to a headrest guide sleeve device.
Background
At present, all install the headrest that can go up and down height-adjusting on the car seat, have the guide arm in the headrest, guide arm sliding connection in a guide pin bushing, the guide pin bushing is installed in an installation sleeve pipe, and installation bushing connects on the seat skeleton. However, since the guide sleeve and the mounting sleeve both have machining errors, the guide sleeve may axially move in the mounting sleeve, resulting in unstable headrest mounting.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides a headrest guide sleeve device which can prevent a guide sleeve from moving in a mounting sleeve and further can enable a headrest to be mounted more stably.
In order to solve the technical problems, the technical scheme of the utility model is as follows: a headrest guide sleeve device is characterized in that a guide rod is arranged in a headrest and comprises a guide sleeve, a locking device and a mounting sleeve; wherein,
the guide sleeve is internally provided with a plug hole for the guide rod to be inserted into;
the locking device is connected to the guide sleeve and is suitable for acting on the guide rod in the inserting hole to lock the position of the guide rod in the inserting hole;
the guide sleeve is also provided with a limiting part and at least one elastic buckle;
the guide sleeve is suitable for being inserted into the installation sleeve, and when the guide sleeve is inserted in the installation sleeve in place, the installation sleeve is positioned between the limiting part and the elastic buckle;
the limiting part is provided with at least one elastic abutting part which is suitable for abutting against the upper end part of the mounting sleeve;
the elastic buckle is suitable for abutting against the lower end part of the mounting sleeve.
Further provides a specific structure of the elastic abutting part, wherein the elastic abutting part comprises an arc part, a left connecting part and a right connecting part; wherein,
the left connecting part and the right connecting part are both connected to the limiting part;
one end part of the arc part is connected with the left connecting part;
the other end of the arc part is connected with the right connecting part;
the circular arc portion is suitable for abutting against the upper end portion of the installation sleeve.
Further, in order to prevent misassembly, a misassembly preventing clamp is arranged on the guide sleeve;
and the mounting sleeve is provided with a mistake-proofing clamping groove for clamping the mistake-proofing clamp.
Further in order to reduce friction force, a plurality of abutting ribs which are suitable for abutting against the outer side wall of the guide rod are arranged on the inner wall of the inserting hole.
Further, in order to prevent the guide sleeve from shaking in the installation sleeve, the installation sleeve is a square pipe;
the guide sleeve is provided with at least one square part which is suitable for being abutted to the inner wall of the installation sleeve in a matching mode.
Further provides a concrete structure of the locking device, the guide rod is provided with at least one locking groove;
the locking device includes:
the bolt is provided with a through hole for the guide rod to pass through, is connected on the guide sleeve in a sliding way and is provided with a locking position and a releasing position in the sliding process;
the lock shaft is connected to the lock tongue, is clamped into the lock groove to lock the position of the guide rod when the lock tongue is located at the locking position, and exits the lock groove when the lock tongue is located at the loosening position;
one end of the elastic piece abuts against the guide sleeve, the other end of the elastic piece abuts against the lock tongue, and the elastic piece is suitable for driving the lock tongue to move to the locking position.
Further, the guide sleeve is provided with an installation part, a sliding distribution channel is arranged in the installation part, and the lock tongue is connected in the sliding distribution channel in a sliding manner.
Further provides a specific installation mode of the elastic piece, and installation holes corresponding to the elastic pieces one by one are arranged in the installation part;
the elastic pieces are installed in the corresponding installation holes;
the bolt is provided with a bolt which is in one-to-one correspondence with the elastic piece and is suitable for being inserted into one end part of the corresponding elastic piece.
Further, at least one limiting groove is formed in the mounting part;
the lock tongue is provided with a limit buckle which corresponds to the limit groove and is matched in the corresponding limit groove in a sliding way;
when the elastic piece drives the lock tongue to move to the locking position, the limit buckle slides to abut against the groove wall of the limit groove to prevent the lock tongue from being separated from the sliding channel.
Further, be connected with the cap on the installation department, be equipped with in the cap with the cap hole that the grafting pore pair was answered.
After the technical scheme is adopted, when the length of the mounting sleeve has certain deviation and the deviation is within an allowable range, the elastic abutting part can always abut against the upper end part of the mounting sleeve, the lower end part of the mounting sleeve abuts against the elastic buckle, the position of the guide sleeve relative to the mounting sleeve can be limited, the guide sleeve is prevented from axially moving in the mounting sleeve, and the headrest is mounted more stably.
Drawings
Fig. 1 is an exploded view of the assembly of the headrest guide sleeve device of the present invention;
fig. 2 is a schematic structural view of the headrest guide bush apparatus of the present invention;
FIG. 3 is a detail view of a portion of FIG. 2;
fig. 4 is a sectional view of the headrest guide bush apparatus of the present invention;
fig. 5 is a cross-sectional view of the locking device of the present invention.
Detailed Description
In order that the present invention may be more readily and clearly understood, a more particular description of the utility model briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
As shown in fig. 1 to 5, a guide bush device for a headrest, which has a guide bar in a headrest, includes a guide bush 1, a locking device 100, and a mounting bush 2; wherein,
the guide sleeve 1 is internally provided with a plug-in hole 3 for the guide rod to be inserted;
the locking device 100 is connected to the guide sleeve 1 and is suitable for acting on the guide rod in the inserting hole 3 to lock the position of the guide rod in the inserting hole 3;
the guide sleeve 1 is also provided with a limiting part 4 and at least one elastic buckle 5;
the guide sleeve 1 is suitable for being inserted into the installation sleeve 2, and when the guide sleeve 1 is inserted in place in the installation sleeve 2, the installation sleeve 2 is positioned between the limiting part 4 and the elastic buckle 5;
the limiting part 4 is provided with at least one elastic abutting part 6 which is suitable for abutting against the upper end part of the mounting sleeve 2;
the elastic buckle 5 is suitable for abutting against the lower end part of the mounting sleeve 2; specifically, when the length of the mounting sleeve 2 has a certain deviation and the deviation is within an allowable range, the elastic abutting portion 6 can always abut against the upper end portion of the mounting sleeve 2, and the lower end portion of the mounting sleeve 2 abuts against the elastic buckle 5, so that the position of the guide sleeve 1 relative to the mounting sleeve 2 can be limited, and the guide sleeve 1 is prevented from axially moving in the mounting sleeve 2. Wherein the mounting sleeve 2 is adapted to be directly or indirectly fixedly connected to a seat frame; in this embodiment, the mounting sleeve 2 is welded to a bracket, the bracket is locked and connected to the seat frame by a fastener, the specific structure of the seat frame is the prior art well known to those skilled in the art, and details are not described in this embodiment.
As shown in fig. 2 and 3, the elastic abutting portion 6 may include an arc portion 7, a left connecting portion 8 and a right connecting portion 9; wherein,
the left connecting part 8 and the right connecting part 9 are both connected to the limiting part 4;
one end part of the arc part 7 is connected with the left connecting part 8;
the other end of the arc part 7 is connected with the right connecting part 9;
the circular arc portion 7 is suitable for abutting against the upper end part of the mounting sleeve 2; the specific structure of the elastic buckle 5 is the prior art well known to those skilled in the art, and is not described in detail in this embodiment.
As shown in fig. 2 and 3, the guide sleeve 1 may be provided with a mistake-proof clip 10;
the mounting sleeve 2 is provided with a mistake-proofing clamping groove 11 for the mistake-proofing clamp 10 to be clamped in; specifically, only when the guide sleeve 1 is correctly installed in the installation sleeve 2, the mistake-proofing clamp 10 can be clamped into the mistake-proofing clamping groove 11, and when the guide sleeve 1 is incorrectly installed in the installation sleeve 2, the guide sleeve 1 and the installation sleeve 2 cannot be assembled in place.
As shown in fig. 4, a plurality of abutting ribs 12 adapted to abut against the outer side wall of the guide rod are arranged on the inner wall of the inserting hole 3; specifically, the abutting ribs 12 abut against the guide rod, so that the guide rod can be prevented from shaking in the inserting hole 3, meanwhile, the contact area between the guide rod and the inner wall of the inserting hole 3 can be reduced, the guide rod is prevented from being tightly held with the inner wall of the inserting hole 3, and further, the friction force during sliding can be reduced, and the sliding is smoother; in this embodiment, the abutment ribs 12 are provided with 4 strips.
As shown in fig. 1 and 2, the installation sleeve 2 may be a square pipe;
the guide sleeve 1 is provided with at least one square part 13 which is suitable for being abutted with the inner wall of the mounting sleeve 2 in a matching manner; specifically, the provision of the square portion 13 can prevent the guide bush 1 from shaking in the mounting sleeve 2.
As shown in fig. 1, 4 and 5, the guide rod has at least one locking groove therein;
the locking device 100 is, for example and without limitation, of the following construction, including:
a bolt 14, wherein the bolt 14 is provided with a through hole 15 for the guide rod to pass through, the bolt 14 is connected to the guide sleeve 1 in a sliding way and is provided with a locking position and a releasing position in the sliding process;
a lock shaft 16, wherein the lock shaft 16 is connected to the lock tongue 14, the lock shaft 16 is clamped into the lock groove to lock the position of the guide rod when the lock tongue 14 is in the locking position, and the lock shaft 16 is withdrawn from the lock groove to enable the guide rod to slide when the lock tongue 14 is in the releasing position;
one end of the elastic piece 17 abuts against the guide sleeve 1, the other end of the elastic piece 17 abuts against the lock tongue 14, and the elastic piece 17 is suitable for driving the lock tongue 14 to move to the locking position; specifically, the guide rod passes through the through hole 15 and then is inserted into the insertion hole 3, when the lock tongue 14 is pressed, the lock tongue 14 moves to the release position against the elastic force of the elastic piece 17, at this time, the lock shaft 16 exits from the lock groove to enable the guide rod to slide, when the lock tongue 14 is released, the elastic piece 17 drives the lock tongue 14 to move to the locking position, and the lock shaft 16 is clamped into the lock groove in the guide rod to lock the position of the guide rod; in this embodiment, the elastic member 17 may be a spring, and the guide bar has a plurality of locking grooves therein.
As shown in fig. 1, 4 and 5, a mounting portion 18 may be provided on the guide sleeve 1, a sliding channel 19 may be provided in the mounting portion 18, and the locking tongue 14 may be slidably connected in the sliding channel 19.
As shown in fig. 1 and 5, the mounting portion 18 may have mounting holes 20 corresponding to the elastic members 17 one to one;
the elastic pieces 17 are installed in the corresponding installation holes 20;
the latch 14 may be provided with a latch 21 corresponding to the elastic member 17 one by one and adapted to be inserted into an end portion of the corresponding elastic member 17.
As shown in fig. 1 and 4, at least one limiting groove 22 is formed in the mounting portion 18;
the lock tongue 14 is provided with a limit buckle 23 which corresponds to the limit groove 22 and is matched in the corresponding limit groove 22 in a sliding way;
when the elastic element 17 drives the lock tongue 14 to move to the locking position, the limit buckle 23 slides to abut against the groove wall of the limit groove 22 to prevent the lock tongue 14 from being separated from the slide matching channel 19; in this embodiment, there are two limiting grooves 22.
As shown in fig. 1, 2 and 4, a cap 24 may be connected to the mounting portion 18, and a cap hole 25 aligned with the insertion hole 3 is formed in the cap 24.
The working principle of the utility model is as follows:
when the length of the installation sleeve 2 has a certain deviation and the deviation is within an allowable range, the elastic abutting part 6 can always abut against the upper end part of the installation sleeve 2, the lower end part of the installation sleeve 2 abuts against the elastic buckle 5, so that the position of the guide sleeve 1 relative to the installation sleeve 2 can be limited, the guide sleeve 1 is prevented from axially moving in the installation sleeve 2, and the headrest is installed more stably.
The above embodiments are described in further detail to solve the technical problems, technical solutions and advantages of the present invention, and it should be understood that the above embodiments are only examples of the present invention and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A headrest guide sleeve device is characterized by comprising a guide sleeve (1), a locking device (100) and a mounting sleeve (2); wherein,
the guide sleeve (1) is internally provided with a plug hole (3) for the guide rod to be inserted into;
the locking device (100) is connected to the guide sleeve (1) and is suitable for acting on a guide rod in the inserting hole (3) to lock the position of the guide rod in the inserting hole (3);
the guide sleeve (1) is also provided with a limiting part (4) and at least one elastic buckle (5);
the guide sleeve (1) is suitable for being inserted into the installation sleeve (2), and when the guide sleeve (1) is inserted in place in the installation sleeve (2), the installation sleeve (2) is located between the limiting part (4) and the elastic buckle (5);
the limiting part (4) is provided with at least one elastic abutting part (6) which is suitable for abutting against the upper end part of the mounting sleeve (2);
the elastic buckle (5) is suitable for abutting against the lower end part of the mounting sleeve (2).
2. The headrest guide arrangement, as set forth in claim 1, characterized in that said elastic abutment (6) comprises a circular arc portion (7), a left connection portion (8) and a right connection portion (9); wherein,
the left connecting part (8) and the right connecting part (9) are both connected to the limiting part (4);
one end part of the circular arc part (7) is connected with the left connecting part (8);
the other end of the circular arc part (7) is connected with the right connecting part (9);
the circular arc portion (7) is suitable for abutting against the upper end portion of the installation sleeve (2).
3. The headrest guide arrangement according to claim 1,
the guide sleeve (1) is provided with a wrong-installation-preventing clamp (10);
and the mounting sleeve (2) is provided with a mistake-proofing clamping groove (11) for the mistake-proofing clamp (10) to be clamped in.
4. The headrest guide sleeve device according to claim 1, characterized in that a plurality of abutting ribs (12) adapted to abut against the outer side wall of the guide rod are provided on the inner wall of the insertion hole (3).
5. The headrest guide arrangement according to claim 1,
the mounting sleeve (2) is a square pipe;
the guide sleeve (1) is provided with at least one square part (13) which is suitable for being abutted to the inner wall of the mounting sleeve (2) in a matching manner.
6. The headrest guide arrangement according to claim 1,
the guide rod is provided with at least one locking groove;
the locking device (100) comprises:
the bolt (14) is provided with a through hole (15) for the guide rod to pass through, and the bolt (14) is connected to the guide sleeve (1) in a sliding mode and has a locking position and a releasing position in the sliding process;
a lock shaft (16), the lock shaft (16) being connected to the bolt (14), the lock shaft (16) snapping into the lock slot to lock the position of the guide rod when the bolt (14) is in the locked position, the lock shaft (16) exiting the lock slot when the bolt (14) is in the unlocked position;
one end of the elastic piece (17) abuts against the guide sleeve (1), the other end of the elastic piece (17) abuts against the lock tongue (14), and the elastic piece (17) is suitable for driving the lock tongue (14) to move to the locking position.
7. The headrest guide sleeve device according to claim 6, characterized in that the guide sleeve (1) is provided with a mounting portion (18), the mounting portion (18) is provided with a slide-fit channel (19), and the lock tongue (14) is slidably connected in the slide-fit channel (19).
8. The headrest guide device according to claim 7,
mounting holes (20) which correspond to the elastic pieces (17) one by one are formed in the mounting part (18);
the elastic pieces (17) are installed in the corresponding installation holes (20);
the bolt (14) is provided with a bolt (21) which is in one-to-one correspondence with the elastic piece (17) and is suitable for being inserted into one end part of the corresponding elastic piece (17).
9. The headrest guide device according to claim 7,
at least one limiting groove (22) is arranged in the mounting part (18);
the lock tongue (14) is provided with a limit buckle (23) which corresponds to the limit groove (22) and is matched in the corresponding limit groove (22) in a sliding way;
when the elastic piece (17) drives the lock tongue (14) to move to the locking position, the limit buckle (23) slides to abut against the groove wall of the limit groove (22) to prevent the lock tongue (14) from being separated from the slide matching channel (19).
10. The headrest guide sleeve device as claimed in claim 7, characterized in that a cap (24) is attached to said mounting portion (18), said cap (24) having a cap hole (25) therein aligned with said insertion hole (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220025215.9U CN216401247U (en) | 2022-01-06 | 2022-01-06 | Headrest guide sleeve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220025215.9U CN216401247U (en) | 2022-01-06 | 2022-01-06 | Headrest guide sleeve device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216401247U true CN216401247U (en) | 2022-04-29 |
Family
ID=81287092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220025215.9U Active CN216401247U (en) | 2022-01-06 | 2022-01-06 | Headrest guide sleeve device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216401247U (en) |
-
2022
- 2022-01-06 CN CN202220025215.9U patent/CN216401247U/en active Active
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| GR01 | Patent grant | ||
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