CN220842282U - Backrest far-end unlocking structure - Google Patents
Backrest far-end unlocking structure Download PDFInfo
- Publication number
- CN220842282U CN220842282U CN202322557065.3U CN202322557065U CN220842282U CN 220842282 U CN220842282 U CN 220842282U CN 202322557065 U CN202322557065 U CN 202322557065U CN 220842282 U CN220842282 U CN 220842282U
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- unlocking
- plate
- backrest
- framework
- tooth
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- 230000000670 limiting effect Effects 0.000 claims description 33
- 210000003781 tooth socket Anatomy 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
- Seats For Vehicles (AREA)
Abstract
The utility model discloses a backrest far-end unlocking structure, which comprises a seat framework, an adjusting component and an unlocking component, wherein the seat framework is arranged on the seat framework; the adjusting component is arranged on the inner side of the seat framework and comprises an angle adjuster and an unlocking plate, the unlocking plate is rotatably arranged on the inner side of the seat framework, and the unlocking plate is used for unlocking the angle adjuster; the unlocking assembly is arranged on the outer side of the seat framework and is used for unlocking the adjusting assembly, the unlocking assembly comprises a connecting shaft, an unlocking handle, a pull rope and a reset spring, the outer side of the seat framework is fixedly connected with the connecting shaft, the outer side of the backrest framework is rotationally connected with the connecting shaft, the unlocking handle is rotationally arranged on the connecting shaft, two ends of the pull rope are respectively fixedly connected with the unlocking handle and an unlocking plate of the adjusting assembly, the unlocking handle can be rotated to unlock the angle adjuster through the pull rope and the unlocking plate, and the reset spring is used for resetting the unlocking handle; the problem that the capability of the existing chair with the backrest adjusting structure for resisting impact force is poor and the safety coefficient is low is solved.
Description
Technical Field
The utility model belongs to the technical field of automobile seats, and particularly relates to a backrest far-end unlocking structure.
Background
The front boundary of the trunk of the passenger car is mostly formed by a seat backrest, so that when collision occurs, luggage in the trunk slides forwards due to inertia and then directly collides with the seat backrest, and the seat needs to have enough strength to resist the direct impact of the luggage so as to avoid the occurrence of dead injury of passengers caused by unlocking of a mechanism, fracture or overlarge deformation of parts.
With the rapid development of automobile technology, various performance requirements of people on automobiles are higher and higher; in order to improve riding comfort and increase the storage space of the trunk, a backrest adjusting structure is arranged on a rear-row seat of a part of automobile, so that passengers can adjust the inclination angle of the backrest according to use requirements. The existing backrest adjusting structure comprises an angle adjuster and a handle for unlocking the angle adjuster, the angle adjuster and the handle are arranged outside a seat in order to facilitate the operation of passengers, the parts of the backrest adjusting structure are arranged compactly, the installation space is saved, but in a luggage case impact test, the impact force of luggage mostly acts on the inner side of the seat, and the backrest adjusting structure has poor impact force resistance capability and low safety coefficient.
Disclosure of utility model
The utility model aims to provide a backrest far-end unlocking structure, which aims to solve the problems of poor impact resistance and low safety coefficient of the existing seat with a backrest adjusting structure.
In order to solve the technical problems, the utility model provides the following technical scheme:
The backrest far-end unlocking structure comprises a seat framework, an adjusting assembly and an unlocking assembly, wherein the seat framework comprises a backrest framework and a seat cushion framework, and the backrest framework and the seat cushion framework are connected into a whole through the adjusting assembly and the unlocking assembly;
The adjusting component is arranged on the inner side of the seat framework and used for adjusting the inclination angle of the backrest framework, and comprises an angle adjuster and an unlocking plate, wherein the unlocking plate is rotatably arranged on the inner side of the seat framework and used for unlocking the angle adjuster;
The unlocking component is arranged on the outer side of the seat framework, the unlocking component is used for unlocking the adjusting component, the unlocking component comprises a connecting shaft, an unlocking handle, a inhaul cable and a reset spring, the outer side of the seat framework is fixedly connected with the connecting shaft, the outer side of the backrest framework is rotationally connected with the connecting shaft, the unlocking handle is rotationally arranged on the connecting shaft, two ends of the inhaul cable are respectively fixedly connected with the unlocking handle and an unlocking plate of the adjusting component, the unlocking handle can be rotated to enable the unlocking handle to pass through the inhaul cable and the unlocking plate to unlock the angle adjuster, and the reset spring is used for resetting the unlocking handle.
Further, the angle adjuster comprises a shell, a tooth groove disc, a sliding groove disc and a central shaft, wherein the tooth groove disc and the sliding groove disc are respectively fixed on a backrest framework and a seat cushion framework, the shell connects the tooth groove disc and the sliding groove disc into a whole, and a cavity is formed between the tooth groove disc and the sliding groove disc; one end of the central shaft is fixedly connected with the unlocking plate, the other end of the central shaft penetrates through and is rotatably arranged on the tooth slot disc and the sliding slot disc, and a linkage plate and a limiting plate which are positioned in the cavity are fixed on the central shaft; two radial sliding grooves are symmetrically formed in the sliding groove plate, tooth blocks are slidably arranged in the two radial sliding grooves, protrusions are arranged on the tooth blocks, sliding grooves are formed in the linkage plate, the protrusions are in sliding fit with the sliding grooves, and the linkage plate can drive the tooth plate to move in the radial sliding grooves when rotating; a circle of inner tooth grooves are arranged on the tooth groove plate, and outer tooth grooves capable of being meshed with the tooth groove plate are arranged on the radial outer edge of the tooth block; when the angle adjuster is in a locking state, the limiting plate props against the radial inner edge of the tooth block, so that the tooth block is meshed with the tooth groove disc, and the tooth groove disc is limited to rotate.
Further, the adjusting assembly further comprises a plane scroll spring, one end of the plane scroll spring is fixed on the seat cushion framework, and the other end of the plane scroll spring is fixed on the backrest framework.
Further, the unlocking assembly further comprises a rotating plate and a fixing plate, wherein the rotating plate is fixedly connected with the unlocking handle and is rotationally connected with the connecting shaft, and the fixing plate is fixedly connected with the connecting shaft; the reset spring is a torsion spring sleeved on the connecting shaft, and two ends of the torsion spring respectively lean against the rotating plate and the fixed plate; the cable is fixed in the lower extreme of rotor plate, and when torsional spring was in non-torsion state, the upper end of rotor plate was supported and is leaned on the fixed plate.
Further, the backrest framework comprises a backrest frame pipe and two backrest side plates, and the two backrest side plates are respectively fixed on the inner side and the outer side of the backrest frame pipe; the seat cushion framework comprises a seat frame pipe and two seat frame side plates, and the two seat frame side plates are respectively fixed on the inner side and the outer side of the seat frame pipe; the unlocking component is arranged on the backrest side plate and the seat frame side plate at the outer side, and the adjusting component is arranged on the backrest side plate and the seat frame side plate at the inner side.
Further, the unlocking assembly further comprises a limiting pipe, the two seat frame side plates are respectively fixed with mounting plates, two ends of the limiting pipe are respectively fixed on the two mounting plates, one end of the inhaul cable is fixed on the rotating plate of the unlocking assembly, and the other end of the inhaul cable penetrates through the limiting pipe and is fixedly connected with the unlocking plate.
Compared with the prior art, the utility model has the following beneficial technical effects:
1. The adjusting components such as the angle adjuster and the like are arranged on the inner side of the seat, the unlocking component is arranged on the outer side of the seat, so that the seat can be conveniently adjusted by passengers, the resistance of the inner side of the seat to the impact force of luggage can be improved, the condition that the passengers are dead and hurt due to unlocking of the adjusting components, part breakage or overlarge deformation of the adjusting components is avoided, and the safety coefficient of the seat is effectively improved.
2. The tooth groove plate is locked by the symmetrically arranged tooth blocks, the locking is stable and reliable, and when the tooth blocks are limited by the limiting plate, the reaction force born by the limiting plate by the tooth blocks is more balanced, so that the rotation deviation of the limiting plate is effectively avoided, and the limiting effect of the limiting plate on the tooth blocks is enhanced; when the angle adjuster is in a locking state, the limiting plate and the sliding groove of the rotating plate are used for carrying out double limiting on the toothed plate, so that the movement of the toothed block is effectively avoided, and the locking stability of the angle adjuster is further enhanced.
3. The utility model has the advantages of simple structure, high assembly efficiency, less parts and low manufacturing cost.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is an assembly view of the adjustment assembly of the present utility model;
FIG. 3 is a schematic perspective view of an adjusting assembly according to the present utility model;
FIG. 4 is a side view of the adjustment assembly of the present utility model;
FIG. 5 is a cross-sectional view taken along the direction A-A in FIG. 4;
Fig. 6 is an assembly view of the unlocking assembly of the present utility model.
Detailed Description
The following is a further detailed description of the embodiments:
reference numerals in the drawings of the specification include:
The seat frame 1, the backrest frame tube 11, the backrest side plate 12, the bracket 121, the seat frame tube 13, the seat frame side plate 14, the mounting plate 141 and the mounting frame 142;
The device comprises an adjusting component 2, an angle adjuster 21, a shell 211, a tooth socket disc 212, a chute disc 213, a central shaft 214, a shaft sleeve 215, a linkage plate 216, a limiting plate 217, a tooth block 218, a bulge 219, an unlocking plate 22 and a plane scroll spring 23;
the unlocking assembly 3, the connecting shaft 31, the unlocking handle 32, the rotating plate 33, the fixing plate 34, the reset spring 35, the inhaul cable 36 and the limiting pipe 37.
Examples
As shown in fig. 1, a backrest distal end unlocking structure comprises a seat frame 1, an adjusting assembly 2 and an unlocking assembly 3, wherein the seat frame 1 comprises a backrest frame and a seat cushion frame, and the backrest frame and the seat cushion frame are connected into a whole through the adjusting assembly 2 and the unlocking assembly 3.
As shown in fig. 1, the back frame comprises a back frame tube 11 and two back side plates 12, and the two back side plates 12 are welded on the inner side and the outer side of the back frame tube 11 respectively; the seat cushion framework comprises a seat frame pipe 13 and two seat frame side plates 14, and the two seat frame side plates 14 are respectively welded on the inner side and the outer side of the seat frame pipe 13; the adjusting assembly 2 is arranged on the inner backrest side plate 12 and the seat frame side plate 14, and the unlocking assembly 3 is arranged on the outer backrest side plate 12 and the seat frame side plate 14.
The adjusting component 2 is arranged on the inner side of the seat, the unlocking component 3 is arranged on the outer side of the seat, so that the seat is convenient for passengers to adjust, the resistance of the inner side of the seat to the impact force of luggage can be improved, the occurrence of dead injury of passengers caused by unlocking of the adjusting component 2 and breakage or overlarge deformation of parts of the seat is avoided, and the safety coefficient of the seat is effectively improved.
As shown in fig. 2 to 5, the adjusting assembly 2 is used for adjusting the inclination angle of the backrest frame, and the adjusting assembly 2 includes an angle adjuster 21 and an unlocking plate 22; the angle adjuster 21 comprises a shell 211, a tooth groove disc 212, a groove disc 213 and a central shaft 214, wherein the tooth groove disc 212 is welded on the back side plate 12 on the inner side, the groove disc 213 is welded on the seat frame side plate 14 on the inner side, the shell 211 is wrapped on the outer edges of the tooth groove disc 212 and the groove disc 213, the tooth groove disc 212 and the groove disc 213 are connected into a whole, the tooth groove disc 212 can rotate relative to the groove disc 213 and the shell 211, and a cavity is formed between the tooth groove disc 212 and the groove disc 213; the unlocking plate 22 is welded at the left end of the central shaft 214, a shaft sleeve 215 is fixedly connected to the outside of the central shaft 214, the shaft sleeve 215 sequentially penetrates through and is rotatably arranged on the chute disc 213 and the gear slot disc 212, and a linkage plate 216 and a limiting plate 217 which are positioned in the cavity are welded at the middle part of the shaft sleeve 215; two radial sliding grooves are symmetrically formed in the sliding groove plate 213, tooth blocks 218 are slidably arranged in the two radial sliding grooves, protrusions 219 are formed on the tooth blocks 218, sliding grooves are formed in the linkage plate 216, the protrusions 219 are in sliding fit with the sliding grooves, and the linkage plate 216 can drive the tooth plates to move in the radial sliding grooves when rotating; a circle of inner tooth grooves are formed in the tooth groove disc 212, and outer tooth grooves capable of being meshed with the tooth groove disc 212 are formed in the radial outer edge of the toothed plate; when the angle adjuster 21 is in a locking state, the outer edge of the limiting plate 217 is propped against the radial inner edge of the toothed plate, and the radial outer edge of the toothed plate is meshed with the inner tooth socket of the tooth socket disc 212 so as to limit the rotation of the tooth socket disc 212; when the recliner 21 is in the unlocked state, the tooth blocks 218 are spaced away from the tooth slot plate 212 and the tooth slot plate 212 can be rotated.
When the angle adjuster 21 is unlocked, the unlocking plate 22 is rotated clockwise, the unlocking plate 22 drives the central shaft 214 and the shaft sleeve 215 to rotate clockwise, the limiting plate 217 and the linkage plate 216 rotate clockwise along with the shaft sleeve 215, the limit on the toothed plate is gradually released from the outer edge of the limiting plate 217, the linkage plate 216 drives the toothed plate to slide towards the center of a circle in a radial sliding groove of the sliding groove disc 213 through a bulge 219 on the toothed plate, the outer tooth grooves of the two toothed plates are separated from the inner tooth grooves of the tooth groove disc 212, the rotation limit on the tooth groove disc 212 is released, and the backrest side plate 12 can rotate along with the tooth groove disc 212 by taking the central shaft 214 as a rotation center.
The tooth groove plate 212 is locked by the angle adjuster 21 through the symmetrically arranged tooth blocks 218, the locking is stable and reliable, and when the tooth blocks 218 are limited by the limiting plate 217, the reactive force born by the limiting plate 217 by the tooth blocks 218 is more balanced, so that the rotation and deflection of the limiting plate 217 are effectively avoided, and the limiting effect of the limiting plate 217 on the tooth blocks 218 is enhanced; when the angle adjuster 21 is in a locking state, the limiting plate 217 and the sliding groove of the rotating plate 33 are used for double limiting of the toothed plate, so that the movement of the toothed block 218 is effectively avoided, and the locking stability of the angle adjuster 21 is further enhanced.
As shown in fig. 2, the adjusting assembly 2 further includes a flat spiral spring 23, a mounting frame 142 is welded to the inner seat frame side plate 14, a bracket 121 is welded to the inner backrest side plate 12, one end of the flat spiral spring 23 is fixed to the mounting frame 142, and the other end of the flat spiral spring 23 is fixed to the bracket 121.
As shown in fig. 6, the unlocking component 3 is used for unlocking the adjusting component 2, the unlocking component 3 comprises a connecting shaft 31 and an unlocking handle 32, the right end of the connecting shaft 31 sequentially penetrates through the outer cushion side plate and the backrest side plate 12, the right end of the connecting shaft 31 is fixed on the backrest side plate 12 through a nut, and the left end of the connecting shaft 31 is rotationally connected with the unlocking handle 32; the middle part of the connecting shaft 31 is provided with a rotating plate 33, a return spring 35 and a fixed plate 34 in sequence from left to right, the rotating plate 33 is in threaded connection with the unlocking handle 32, the rotating plate 33 is in rotary connection with the connecting shaft 31, the fixed plate 34 is fixedly connected with the connecting shaft 31, the return spring 35 is a torsion spring sleeved on the connecting shaft 31, two ends of the torsion spring respectively lean against the rotating plate 33 and the fixed plate 34, and when the torsion spring is in a non-torsion state, the upper end of the rotating plate 33 leans against the fixed plate 34; as shown in fig. 2 and 6, the unlocking assembly 3 further includes a pull cable 36 and a limiting tube 37, wherein the two seat frame side plates 14 are welded with mounting plates 141, two ends of the limiting tube 37 are respectively fixed on the two mounting plates 141, one end of the pull cable 36 is fixed at the lower end of the rotating plate 33, and the other end of the pull cable 36 passes through the limiting tube 37 to be fixed on the unlocking plate 22 of the unlocking assembly 3.
When the inclination angle of the backrest framework needs to be adjusted, the unlocking handle 32 is pulled upwards, the unlocking handle 32 drives the lower end of the rotating plate 33 to move upwards, one end, connected with the rotating plate 33, of the stay cable 36 moves upwards, and the other end of the stay cable 36 pulls the unlocking plate 22 to rotate downwards, so that the angle adjuster 21 is unlocked, and the angle of the backrest framework can be adjusted; after the adjustment is finished, the unlocking handle 32 is loosened, the unlocking handle 32, the rotating plate 33 and the stay cable 36 are reset under the action of the reset spring 35, the stay cable 36 drives the unlocking plate 22 to reset, and the angle adjuster 21 is locked again.
Claims (6)
1. A backrest distal end unblock structure, its characterized in that: the seat comprises a backrest framework and a seat cushion framework, wherein the backrest framework and the seat cushion framework are connected into a whole through the adjusting assembly and the unlocking assembly;
The adjusting component is arranged on the inner side of the seat framework and used for adjusting the inclination angle of the backrest framework, and comprises an angle adjuster and an unlocking plate, wherein the unlocking plate is rotatably arranged on the inner side of the seat framework and used for unlocking the angle adjuster;
The unlocking component is arranged on the outer side of the seat framework, the unlocking component is used for unlocking the adjusting component, the unlocking component comprises a connecting shaft, an unlocking handle, a inhaul cable and a reset spring, the outer side of the seat framework is fixedly connected with the connecting shaft, the outer side of the backrest framework is rotationally connected with the connecting shaft, the unlocking handle is rotationally arranged on the connecting shaft, two ends of the inhaul cable are respectively fixedly connected with the unlocking handle and an unlocking plate of the adjusting component, the unlocking handle can be rotated to enable the unlocking handle to pass through the inhaul cable and the unlocking plate to unlock the angle adjuster, and the reset spring is used for resetting the unlocking handle.
2. A backrest distal unlocking structure as claimed in claim 1, wherein: the angle adjuster comprises a shell, a tooth groove disc, a sliding groove disc and a central shaft, wherein the tooth groove disc and the sliding groove disc are respectively fixed on a backrest framework and a seat cushion framework, the shell connects the tooth groove disc and the sliding groove disc into a whole, and a cavity is formed between the tooth groove disc and the sliding groove disc; one end of the central shaft is fixedly connected with the unlocking plate, the other end of the central shaft penetrates through and is rotatably arranged on the tooth slot disc and the sliding slot disc, and a linkage plate and a limiting plate which are positioned in the cavity are fixed on the central shaft; two radial sliding grooves are symmetrically formed in the sliding groove plate, tooth blocks are slidably arranged in the two radial sliding grooves, protrusions are arranged on the tooth blocks, sliding grooves are formed in the linkage plate, the protrusions are in sliding fit with the sliding grooves, and the linkage plate can drive the tooth plate to move in the radial sliding grooves when rotating; a circle of inner tooth grooves are arranged on the tooth groove plate, and outer tooth grooves capable of being meshed with the tooth groove plate are arranged on the radial outer edge of the tooth block; when the angle adjuster is in a locking state, the limiting plate props against the radial inner edge of the tooth block, so that the tooth block is meshed with the tooth groove disc, and the tooth groove disc is limited to rotate.
3. A backrest distal unlocking structure as claimed in claim 2, wherein: the adjusting component also comprises a plane scroll spring, one end of the plane scroll spring is fixed on the seat cushion framework, and the other end of the plane scroll spring is fixed on the backrest framework.
4. A backrest distal unlocking structure as claimed in claim 2, wherein: the unlocking assembly further comprises a rotating plate and a fixing plate, the rotating plate is fixedly connected with the unlocking handle and is rotationally connected with the connecting shaft, and the fixing plate is fixedly connected with the connecting shaft; the reset spring is a torsion spring sleeved on the connecting shaft, and two ends of the torsion spring respectively lean against the rotating plate and the fixed plate; the cable is fixed in the lower extreme of rotor plate, and when torsional spring was in non-torsion state, the upper end of rotor plate was supported and is leaned on the fixed plate.
5. The backrest distal unlocking structure as recited in claim 4, wherein: the backrest framework comprises a backrest frame pipe and two backrest side plates, and the two backrest side plates are respectively fixed on the inner side and the outer side of the backrest frame pipe; the seat cushion framework comprises a seat frame pipe and two seat frame side plates, and the two seat frame side plates are respectively fixed on the inner side and the outer side of the seat frame pipe; the unlocking component is arranged on the backrest side plate and the seat frame side plate at the outer side, and the adjusting component is arranged on the backrest side plate and the seat frame side plate at the inner side.
6. The backrest distal unlocking structure as recited in claim 5, wherein: the unlocking assembly further comprises a limiting pipe, the two seat frame side plates are respectively fixed with mounting plates, two ends of the limiting pipe are respectively fixed on the two mounting plates, one end of the inhaul cable is fixed on the rotating plate of the unlocking assembly, and the other end of the inhaul cable penetrates through the limiting pipe and is fixedly connected with the unlocking plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322557065.3U CN220842282U (en) | 2023-09-20 | 2023-09-20 | Backrest far-end unlocking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322557065.3U CN220842282U (en) | 2023-09-20 | 2023-09-20 | Backrest far-end unlocking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220842282U true CN220842282U (en) | 2024-04-26 |
Family
ID=90785818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322557065.3U Active CN220842282U (en) | 2023-09-20 | 2023-09-20 | Backrest far-end unlocking structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220842282U (en) |
-
2023
- 2023-09-20 CN CN202322557065.3U patent/CN220842282U/en active Active
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| GR01 | Patent grant | ||
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