CN217039432U - Seat frame with simple structure - Google Patents
Seat frame with simple structure Download PDFInfo
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- CN217039432U CN217039432U CN202123085122.XU CN202123085122U CN217039432U CN 217039432 U CN217039432 U CN 217039432U CN 202123085122 U CN202123085122 U CN 202123085122U CN 217039432 U CN217039432 U CN 217039432U
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Abstract
The utility model relates to the technical field of electric chairs, in particular to a seat frame with simple structure, which comprises a base, a linkage component, a driving device, a connecting shaft, a support frame connecting block, a leg connecting rod component, a backrest connecting rod component, a support frame which is arranged on the base in a lifting way and a lifting connecting rod component which is connected with the support frame and the base, wherein the body of the driving device is hinged with the base, and the output end of the driving device is hinged with the middle part of the connecting shaft; one end of the support frame connecting block is hinged to the middle of the support frame, and the other end of the support frame connecting block is connected with one end of the connecting shaft. The driving device can drive the leg connecting rod assembly and the backrest connecting rod assembly to extend and contract through the connecting shaft and the linkage assembly, and the power source required by the adjustment of the seat frame is less; the utility model discloses a connection structure is simple compact, and the switching and the regulation of the multiple state of seat frame are convenient, have improved user's use and have experienced.
Description
Technical Field
The utility model belongs to the technical field of the electronic chair technique and specifically relates to indicate a simple structure's seat frame.
Background
In recent years, there has been an increasing demand for functional furniture products, and electric chairs are widely used for many purposes such as sitting, lying, and leaning. The leg extension component of the existing electric folding seat frame has a complex extension structure, or the leg extension component and the base have a complex connection structure, so that the leg extension component is inconvenient to disassemble and assemble, and the electric folding seat frame has high production cost and complex adjustment operation. Therefore, the drawbacks are obvious, and a solution is needed.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, an object of the present invention is to provide a seat frame with simple structure.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a seat frame with a simple structure comprises a base, a linkage assembly, a driving device, a connecting shaft, a support frame connecting block, a leg connecting rod assembly, a backrest connecting rod assembly, a support frame arranged on the base in a lifting mode and a lifting connecting rod assembly connected to the support frame and the base, wherein the body of the driving device is hinged to the base, and the output end of the driving device is hinged to the middle of the connecting shaft; one end of the support frame connecting block is hinged with the middle part of the support frame, the other end of the support frame connecting block is connected with one end of the connecting shaft, the leg connecting rod assembly is hinged with one end of the linkage assembly and one end of the support frame respectively, and the backrest connecting rod assembly is hinged with the other end of the linkage assembly and the other end of the support frame respectively; the lifting connecting rod assembly is hinged to one end, far away from the driving device, of the supporting frame.
Furthermore, a connecting rod is arranged on the connecting shaft; the linkage assembly comprises a linkage rod and a linkage piece, one end of the linkage piece is hinged with one end of the linkage rod and the backrest connecting rod assembly respectively, and the other end of the linkage piece is hinged with the leg connecting rod assembly; the other end of the linkage rod is hinged with the connecting rod.
Further, the linkage piece comprises a linkage block and an armrest; the middle part of the linkage block is connected with one end of the handrail, the middle part of the linkage block is also hinged with the backrest connecting rod assembly, and the bottom end of the linkage block is hinged with the linkage rod; the other end of the handrail is hinged with the leg connecting rod component.
Furthermore, the leg connecting rod assembly comprises a leg supporting piece, a first leg supporting connecting rod, a second leg supporting connecting rod, a third leg supporting connecting rod and a fourth leg supporting connecting rod, one end of the first leg supporting connecting rod is hinged with the middle part of the leg supporting piece, the other end of the first leg supporting connecting rod is hinged with one end of the second leg supporting connecting rod, and the other end of the second leg supporting connecting rod is hinged with one end, far away from the driving device, of the supporting frame; one end of the leg supporting connecting rod III is hinged to one end of the leg supporting piece, the other end of the leg supporting connecting rod III is hinged to one end of the leg supporting connecting rod IV, and the other end of the leg supporting connecting rod IV is hinged to one end, far away from the driving device, of the linkage assembly.
Furthermore, the leg support connecting rod IV and the leg support connecting rod are arranged in parallel; the leg support connecting rod III is parallel to the leg support connecting rod; the middle part of the second leg support connecting rod is hinged with the middle part of the third leg support connecting rod.
Furthermore, a first abutting part is arranged on the supporting frame and is positioned between the leg supporting connecting rod IV and the connecting shaft; the first contact piece can contact with the fourth leg support connecting rod.
Further, the seat frame further comprises a backrest member hinged to the backrest linkage assembly.
Furthermore, the backrest connecting rod assembly comprises a swinging rod, a triangular connecting block, a backrest connecting rod I and a backrest connecting rod II; the top angle of the triangular connecting block is hinged with the middle part of the linkage block, one bottom angle of the triangular connecting block is hinged with one end of the swinging rod, and the other bottom angle of the triangular connecting block is hinged with one end of the backrest connecting rod I; the other end of the swinging rod is hinged with the supporting frame; the other end of the first backrest connecting rod is hinged with one end of the second backrest connecting rod; the other end of the backrest connecting rod II is hinged with the top end of the linkage block, and the backrest part is arranged in the middle of the backrest connecting rod II.
Further, the lifting connecting rod assembly comprises a third lifting connecting rod, a first lifting connecting rod, a second lifting connecting rod and a lifting seat arranged on the base, one end of the first lifting connecting rod is hinged to one end of the lifting seat, the other end of the first lifting connecting rod is hinged to the middle of the third lifting connecting rod, the other end of the lifting seat is hinged to one end of the second lifting connecting rod, the other end of the second lifting connecting rod is hinged to one end of the third lifting connecting rod, and the other end of the third lifting connecting rod is connected with the supporting frame.
Furthermore, a second abutting part is further arranged on the supporting frame, and the connecting shaft is located between the first abutting part and the second abutting part; the second abutting part can abut against the lifting connecting rod assembly.
The utility model has the advantages that: the utility model discloses a can drive seat frame through a drive arrangement and switch multiple different user state, reduce the required power supply of seat frame, practice thrift the manufacturing cost of seat frame. After the support frame connecting block is connected with the support frame in a rotating mode, the connecting shaft is connected with the support frame connecting block, the driving device and the linkage assembly respectively, the driving device can drive the leg connecting rod assembly and the backrest connecting rod assembly to stretch and contract through the connecting shaft and the linkage assembly, the support frame is driven through the lifting connecting rod assembly, and the contracted leg connecting rod assembly and the backrest connecting rod assembly are lifted and inclined, so that ordered switching of multiple different using states of the seat frame is achieved. The connecting axle passes through the support frame connecting block to be connected with the support frame rotation, is convenient for adjust shank link assembly and back link assembly's lift and flexible respectively, the utility model discloses a connection structure is simple compact, and the switching of the multiple state of seat frame is convenient with the regulation, has improved user's use and has experienced.
Drawings
Fig. 1 is a schematic view of a partial three-dimensional structure of the present invention.
Fig. 2 is a schematic top view of the present invention.
Fig. 3 is a schematic diagram of a partial three-dimensional structure of the present invention.
Fig. 4 is a schematic side view of the present invention.
Description of the reference numerals:
1. a base; 2. a support frame; 3. a drive device; 4. a linkage assembly; 5. a leg link assembly; 6. a backrest link assembly; 7. a lifting link assembly; 8. a back-rest element; 9. a support frame connecting block; 10. a connecting shaft; 11. a connecting rod; 21. a first contact element; 22. a second contact component; 41. a linkage rod; 42. a linkage; 43. a handrail; 44. a linkage block; 51. a first leg support connecting rod; 52. a leg support connecting rod II; 53. a leg support link III; 54. a leg support link rod IV; 55. a leg support; 61. a first backrest connecting rod; 62. a second backrest connecting rod; 63. a triangular connecting block; 64. a swing lever; 71. a first lifting connecting rod; 72. a second lifting connecting rod; 73. a lifting connecting rod III; 74. a lifting seat.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.
As shown in fig. 1 to 4, the seat frame provided by the present invention comprises a base 1, a linkage assembly 4, a driving device 3, a connecting shaft 10, a support frame connecting block 9, a leg connecting rod assembly 5, a backrest connecting rod assembly 6, a support frame 2 disposed on the base 1 in a lifting manner, and a lifting connecting rod assembly 7 connected to the support frame 2 and the base 1, wherein a body of the driving device 3 is hinged to the base 1, and an output end of the driving device 3 is hinged to a middle portion of the connecting shaft 10; one end of the support frame connecting block 9 is hinged with the middle part of the support frame 2, the other end of the support frame connecting block 9 and the linkage assembly 4 are respectively connected with one end of a connecting shaft 10, the leg connecting rod assembly 5 is respectively hinged with one end of the linkage assembly 4 and one end of the support frame 2, and the backrest connecting rod assembly 6 is respectively hinged with the other end of the linkage assembly 4 and the other end of the support frame 2; the lifting connecting rod assembly 7 is hinged to one end, far away from the driving device 3, of the support frame 2.
Specifically, the driving device 3 can drive the connecting shaft 10 and the support frame connecting block 9 to rotate along the hinged position of the support frame connecting block 9 and the support frame 2, and when the connecting shaft 10 rotates, the linkage assembly 4 drives the leg connecting rod assembly 5 or/and the backrest connecting rod assembly 6 to rotate relative to the support frame 2, so as to realize the extension or contraction of the leg connecting rod assembly 5 or/and the backrest connecting rod assembly 6; the seat frame also comprises a backrest part 8 which is hinged with the backrest connecting rod component 6; the linkage assembly 4 drives the backrest member 8 to stand or tilt via the backrest link assembly 6.
In the actual use process, when the seat frame is in the lying and leaning state, the leg connecting rod assembly 5 is in the extending state, the backrest connecting rod assembly 6 is in the extending state, the backrest 8 is in the inclining state, the output end of the driving device 3 is basically located in the body of the driving device 3 (the output end of the driving device 3 is in the contracting state), the driving device 3 is started, the length of the output end of the driving device 3 extending out of the body of the driving device 3 is gradually increased (the output end of the driving device 3 is extended) to drive the connecting shaft 10 and the support frame connecting block 9 to rotate towards the direction far away from the driving device 3 along the hinged position of the support frame connecting block 9 and the support frame 2, when the connecting shaft 10 rotates, the leg connecting rod assembly 5 and the backrest connecting rod assembly 6 are driven to rotate relative to the support frame 2 through the linkage assembly 4, so as to realize the contraction of the leg connecting rod assembly 5 and the backrest connecting rod assembly 6, the backrest connecting rod assembly 6 drives the backrest part 8 to rotate gradually from the inclined state to the upright state, the driving device 3 stops moving, and at the moment, the seat frame is in a sitting posture state; similarly, the operation flow when the seat frame needs to be adjusted from the sitting position to the reclining position is opposite to the operation flow of the embodiment.
When the seat frame is in a sitting posture state, if the length of the output end of the driving device 3 extending out of the body of the driving device 3 is continuously increased, when the leg connecting rod assembly 5 or/and the backrest connecting rod assembly 6 is abutted against the support frame 2 or/and the linkage assembly 4, the leg connecting rod assembly 5 or/and the backrest connecting rod assembly 6 cannot be continuously contracted, at this time, the output end of the driving device 3 drives the lifting connecting rod assembly 7 to extend upwards through the connecting shaft 10, the support frame connecting block 9 and the support frame 2, the lifting connecting rod assembly 7 drives the support frame 2 to gradually rise in the extending process, because the lifting connecting rod assembly 7 is hinged with one end of the support frame 2 far away from the driving device 3, when the output end of the driving device 3 drives the middle part of the support frame 2 to rise firstly through the connecting shaft 10, the lifting connecting rod assembly 7 drives one end of the support frame 2 far away from the driving device to rise later, so that the support frame 2 is lifted and inclined at the same time until the support frame 2 is lifted and inclined to a proper position and then the driving device 3 stops moving, and at the moment, the seat frame is in a standing assisting state; similarly, the operation flow when the seat frame needs to be adjusted from the standing state to the sitting state is opposite to the operation flow of the embodiment.
The utility model discloses a can drive seat frame through a drive arrangement 3 and switch multiple different user state, reduce the required power supply of seat frame, practice thrift the manufacturing cost of seat frame. Rotate support frame connecting block 9 and support frame 2 and be connected the back, again with connecting axle 10 respectively with support frame connecting block 9, drive arrangement 3 and linkage assembly 4 are connected, make drive arrangement 3 can drive shank link assembly 5 and back link assembly 6 through connecting axle 10 and linkage assembly 4 and extend and contract, drive support frame 2 through lifting link assembly 7, shank link assembly 5 and back link assembly 6 after the shrink go up and down and incline, thereby realize the orderly switching of the multiple different user state of seat frame. Connecting axle 10 rotates through support frame connecting block 9 and support frame 2 to be connected, is convenient for respectively to the lift and the flexible regulation of shank link assembly 5 and back link assembly 6, the utility model discloses a connection structure is simple compact, and the switching of the multiple state of seat frame is convenient with the regulation, has improved user's use and has experienced.
Further, a connecting rod 11 is arranged on the connecting shaft 10; the linkage assembly 4 comprises a linkage rod 41 and a linkage piece 42, one end of the linkage piece 42 is hinged with one end of the linkage rod 41 and the backrest connecting rod assembly 6 respectively, and the other end of the linkage piece 42 is hinged with the leg connecting rod assembly 5; the other end of the linkage rod 41 is hinged with the connecting rod 11.
Specifically, the linkage 42 includes a linkage block 44 and an armrest 43; the middle part of the linkage block 44 is connected with one end of the armrest 43, the middle part of the linkage block 44 is also hinged with the backrest connecting rod assembly 6, and the bottom end of the linkage block 44 is hinged with the linkage rod 41; the other end of the arm rest 43 is hinged to the leg link assembly 5.
When the seat frame is in a sitting posture state, when the length of the output end of the driving device 3 extending out of the body of the driving device 3 is gradually shortened, the output end of the driving device 3 drives the connecting shaft 10, the support frame connecting block 9 and the connecting rod 11 rotate towards the direction close to the driving device 3 along the hinged position of the support frame connecting block 9 and the support frame 2, so that the connecting rod 11 drives the linkage rod 41, the linkage block 44 and the handrail 43 to move towards the direction close to the driving device 3, the handrail 43 and the support frame 2 are matched to drive the leg connecting rod assembly 5 to extend, the linkage block 44 is matched with the support frame 2 to drive the backrest connecting rod assembly 6 to extend and the backrest 8 to incline, and therefore the seat frame is converted from the sitting posture state to the lying and leaning state. The support frame connecting block 9 and the connecting shaft 10 rotate relative to the support frame 2 to drive the connecting rod 11 and the linkage rod 41 to drive the linkage block 44 and the handrail 43 to move relative to the support frame 2, so that the extension or contraction of the leg connecting rod assembly 5 and the backrest connecting rod assembly 6 is realized, the connecting structure of the linkage assembly 4 and the connecting shaft 10 is ingenious, the structure of the seat frame is further simplified, and the adjustment of the seat frame is convenient.
Further, the leg link assembly 5 comprises a leg support 55, a leg support link one 51, a leg support link two 52, a leg support link three 53 and a leg support link four 54, wherein one end of the leg support link one 51 is hinged to the middle of the leg support 55, the other end of the leg support link one 51 is hinged to one end of the leg support link two 52, and the other end of the leg support link two 52 is hinged to one end of the support frame 2 away from the driving device 3; one end of the leg support link three 53 is hinged to one end of the leg support 55, the other end of the leg support link three 53 is hinged to one end of the leg support link four 54, and the other end of the leg support link four 54 is hinged to one end of the armrest 43 away from the driving device 3.
Specifically, the fourth leg support link 54 is arranged in parallel with the second leg support link 52; the third leg support connecting rod 53 and the first leg support connecting rod 51 are arranged in parallel; the middle part of the second leg support connecting rod 52 is hinged with the middle part of the third leg support connecting rod 53; when the seat frame is in a sitting posture state, when the length of the output end of the driving device 3 extending out of the body of the driving device 3 is gradually shortened, the driving device 3 drives the handrail 43 to move towards the direction close to the driving device 3, the handrail 43 drives the leg support link four 54 to rotate towards the direction far away from the driving device 3 along the hinged position of the leg support link four 54 and the support frame 2, the leg support link four 54 drives the leg support link one 51 to rotate relative to the support frame 2 through the leg support link three 53 and the leg support link two 52, so that the leg support 55 extends towards the direction far away from the driving device 3, and the leg connecting rod assembly 5 is simple in structure and convenient to extend.
Further, a first contact piece 21 is arranged on the support frame 2, and the first contact piece 21 is positioned between the leg support link four 54 and the connecting shaft 10; the first contact piece 21 can contact with the leg support link four 54.
Specifically, the first contact element 21 may be a limit rod. In actual use, when the seat frame is changed from a lying state to a sitting state, the leg link assembly 5 is retracted, the leg support link four 54 retracts toward the direction close to the driving device 3, until the leg support link four 54 abuts against the first abutting part 21, the leg link assembly 5 stops retracting, and the first abutting part 21 has the function of limiting the rotation angle of the leg support link four 54, so that the leg link assembly 5 swings within a preset angle range, and the stability of the leg link assembly 5 in the use process is improved.
Further, the backrest connecting rod assembly 6 comprises a swinging rod 64, a triangular connecting block 63, a backrest connecting rod I61 and a backrest connecting rod II 62; the top angle of the triangular connecting block 63 is hinged with the middle part of the linkage block 44, one bottom angle of the triangular connecting block 63 is hinged with one end of the swinging rod 64, and the other bottom angle of the triangular connecting block 63 is hinged with one end of the backrest connecting rod I61; the other end of the swinging rod 64 is hinged with the support frame 2; the other end of the backrest connecting rod I61 is hinged with one end of the backrest connecting rod II 62; the other end of the second backrest connecting rod 62 is hinged with the top end of the linkage block 44, and the backrest piece 8 is arranged in the middle of the second backrest connecting rod 62.
Specifically, the triangular connecting block 63 is substantially triangular; the linkage block 44 is rotatably connected with the hinge of the triangular connecting block 63 through a damper. In the actual use process, when the seat frame is in a sitting posture state and the length of the output end of the driving device 3 extending out of the body of the driving device 3 is gradually reduced, the driving device 3 drives the leg connecting rod assembly 5 to extend through the handrail 43; the linkage block 44 drives the triangular connection block 63 to move towards the direction close to the driving device 3, the triangular connection block 63 drives the swing rod 64 to rotate towards the direction close to the driving device 3 along the hinged position of the swing rod 64 and the support frame 2, the swing rod 64 and the linkage block 44 synchronously move, the hinged position of the triangular connection block 63 and the linkage block 44 does not rotate, the swing rod 64 drives the linkage block 44, the triangular connection block 63, the first backrest connection rod 61 and the second backrest connection rod 62 rotate towards the direction far away from the support frame 2, so that the inclination angle between the backrest piece 8 and the support frame 2 is increased, and the first adjustment of the backrest piece 8 is realized. Until the swinging rod 64 swings to the support frame 2 for abutting, if the length of the output end of the driving device 3 extending out of the body of the driving device 3 continues to extend, the output end of the driving device 3 continues to move towards the direction close to the driving device through the armrests 43 and the linkage block 44, the linkage block 44 rotates along the hinged part of the linkage block 44 and the swinging rod 64, the linkage block 44 drives the backrest connecting rod II 62 to rotate relative to the hinged part of the backrest connecting rod II 62 and the linkage block 44 through the backrest connecting rod I61, so that the backrest connecting rod assembly 6 is extended and the backrest piece 8 is driven to further incline, and the seat frame is converted from a sitting posture state to a lying and leaning state. The simple ingenious connection structure of back link assembly 6 and support frame 2 and linkage subassembly 4 adds swinging arms 64, divide into two segmentation regulation with back link assembly 6, the utility model discloses an angle modulation of back 8 is convenient, has improved the practicality of seat frame.
Further, the lifting link assembly 7 includes a third lifting link 73, a first lifting link 71, a second lifting link 72 and a lifting base 74 disposed on the base 1, one end of the first lifting link 71 is hinged to one end of the lifting base 74, the other end of the first lifting link 71 is hinged to the middle of the third lifting link 73, the other end of the lifting base 74 is hinged to one end of the second lifting link 72, the other end of the second lifting link 72 is hinged to one end of the third lifting link 73, and the other end of the third lifting link 73 is connected to the support frame 2.
Specifically, the other end of the lifting link three 73 is connected with the first abutting part 21. In the actual use process, the output end of the driving device 3 drives the lifting connecting rod three 73, the lifting connecting rod two 72 and the lifting connecting rod one 71 to rotate through the support frame 2, the lifting connecting rod two 72 and the lifting connecting rod one 71 rotate relative to the lifting seat 74 to realize the extension of the lifting connecting rod assembly 7 and the rising of the support frame 2, the lifting connecting rod three 73 drives the lifting connecting rod two 72 and the lifting connecting rod one 71 to rotate so that the support frame 2 gradually rises and inclines relative to the base 1, the use or the leaving of a user with inconvenient actions is facilitated, the lifting connecting rod assembly 7 is convenient to connect with the support frame 2, the driving device 3 drives the lifting connecting rod assembly 7 to rise and fall conveniently, and the practicability of the seat frame is strong. The driving device 3 drives the first contact piece 21, the third lifting connecting rod 73, the second lifting connecting rod 72 and the first lifting connecting rod 71 to extend upwards through the support frame 2, so that the stability of the lifting connecting rod assembly 7 when driving the support frame 2 to rise is improved.
Furthermore, a second abutting part 22 is further arranged on the support frame 2, and the connecting shaft 10 is located between the first abutting part 21 and the second abutting part 22; the second contact element 22 can contact with the lifting link assembly 7.
In the actual use process, when the seat frame is in the sitting posture state, the second abutting piece 22 abuts against the first lifting connecting rod 71, and the stability and the safety of the seat frame in the sitting posture state are improved.
All the technical features in the embodiment can be freely combined according to actual needs.
The above-mentioned embodiment does the utility model discloses the implementation scheme of preferred, in addition, the utility model discloses can also realize by other modes, any obvious replacement is all within the protection scope of the utility model under the prerequisite that does not deviate from this technical scheme design.
Claims (10)
1. A simple structure's seat frame which characterized in that: the device comprises a base (1), a linkage assembly (4), a driving device (3), a connecting shaft (10), a support frame connecting block (9), a leg connecting rod assembly (5), a backrest connecting rod assembly (6), a support frame (2) arranged on the base (1) in a lifting mode and a lifting connecting rod assembly (7) connected to the support frame (2) and the base (1), wherein the body of the driving device (3) is hinged to the base (1), and the output end of the driving device (3) is hinged to the middle of the connecting shaft (10); one end of the support frame connecting block (9) is hinged with the middle of the support frame (2), the other end of the support frame connecting block (9) is connected with one end of the connecting shaft (10), the leg connecting rod assembly (5) is hinged with one end of the linkage assembly (4) and one end of the support frame (2) respectively, and the backrest connecting rod assembly (6) is hinged with the other end of the linkage assembly (4) and the other end of the support frame (2) respectively; the lifting connecting rod assembly (7) is hinged to one end, far away from the driving device (3), of the supporting frame (2).
2. A structurally simple seat frame as claimed in claim 1, wherein: a connecting rod (11) is arranged on the connecting shaft (10); the linkage assembly (4) comprises a linkage rod (41) and a linkage piece (42), one end of the linkage piece (42) is hinged to one end of the linkage rod (41) and the backrest connecting rod assembly (6) respectively, and the other end of the linkage piece (42) is hinged to the leg connecting rod assembly (5); the other end of the linkage rod (41) is hinged with the connecting rod (11).
3. A structurally simple seat frame as defined in claim 2, wherein: the linkage piece (42) comprises a linkage block (44) and an armrest (43); the middle part of the linkage block (44) is connected with one end of a handrail (43), the middle part of the linkage block (44) is also hinged with a backrest connecting rod component (6), and the bottom end of the linkage block (44) is hinged with a linkage rod (41); the other end of the handrail (43) is hinged with the leg connecting rod component (5).
4. A structurally simple seat frame as defined in claim 1, wherein: the leg connecting rod assembly (5) comprises a leg supporting part (55), a leg supporting connecting rod I (51), a leg supporting connecting rod II (52), a leg supporting connecting rod III (53) and a leg supporting connecting rod IV (54), one end of the leg supporting connecting rod I (51) is hinged to the middle of the leg supporting part (55), the other end of the leg supporting connecting rod I (51) is hinged to one end of the leg supporting connecting rod II (52), and the other end of the leg supporting connecting rod II (52) is hinged to one end, far away from the driving device (3), of the supporting frame (2); one end of the leg supporting connecting rod III (53) is hinged to one end of the leg supporting part (55), the other end of the leg supporting connecting rod III (53) is hinged to one end of the leg supporting connecting rod IV (54), and the other end of the leg supporting connecting rod IV (54) is hinged to one end, far away from the driving device (3), of the linkage assembly (4).
5. A structurally simple seat frame as claimed in claim 4, wherein: the fourth leg support connecting rod (54) and the second leg support connecting rod (52) are arranged in parallel; the leg support connecting rod III (53) and the leg support connecting rod I (51) are arranged in parallel; the middle part of the second leg support connecting rod (52) is hinged with the middle part of the third leg support connecting rod (53).
6. A structurally simple seat frame as defined in claim 4 wherein: a first contact piece (21) is arranged on the supporting frame (2), and the first contact piece (21) is positioned between the leg supporting connecting rod four (54) and the connecting shaft (10); the first abutting piece (21) can abut against the leg support link four (54).
7. A structurally simple seat frame as claimed in claim 1, wherein: the seat frame further comprises a backrest part (8) hinged with the backrest connecting rod component (6).
8. A structurally simple seat structure as claimed in claim 7, wherein: the backrest connecting rod assembly (6) comprises a swinging rod (64), a triangular connecting block (63), a backrest connecting rod I (61) and a backrest connecting rod II (62); the top angle of the triangular connecting block (63) is hinged with the middle part of the linkage block (44), one bottom angle of the triangular connecting block (63) is hinged with one end of the swinging rod (64), and the other bottom angle of the triangular connecting block (63) is hinged with one end of the backrest connecting rod I (61); the other end of the swinging rod (64) is hinged with the supporting frame (2); the other end of the backrest connecting rod I (61) is hinged with one end of the backrest connecting rod II (62); the other end of the second backrest connecting rod (62) is hinged with the top end of the linkage block (44), and the backrest piece (8) is arranged in the middle of the second backrest connecting rod (62).
9. A simply constructed seat frame as claimed in any one of claims 1 to 8, wherein: lifting link assembly (7) include lifting link three (73), lifting link one (71), lifting link two (72) and set up lift seat (74) on base (1), the one end of lifting link one (71) is articulated with the one end of lift seat (74), the other end of lifting link one (71) is articulated with the middle part of lifting link three (73), the other end of lift seat (74) is articulated with the one end of lifting link two (72), the other end of lifting link two (72) is articulated with the one end of lifting link three (73), the other end and the support frame (2) of lifting link three (73) are connected.
10. A structurally simple seat frame as defined in claim 9, wherein: a second contact part (22) is further arranged on the supporting frame (2), and the connecting shaft (10) is located between the first contact part (21) and the second contact part (22); the second contact piece (22) can be in contact with the lifting connecting rod assembly (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123085122.XU CN217039432U (en) | 2021-12-08 | 2021-12-08 | Seat frame with simple structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123085122.XU CN217039432U (en) | 2021-12-08 | 2021-12-08 | Seat frame with simple structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217039432U true CN217039432U (en) | 2022-07-26 |
Family
ID=82477111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123085122.XU Active CN217039432U (en) | 2021-12-08 | 2021-12-08 | Seat frame with simple structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217039432U (en) |
-
2021
- 2021-12-08 CN CN202123085122.XU patent/CN217039432U/en active Active
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