CN221382982U - Telescopic device for linkage of cushion and backrest - Google Patents
Telescopic device for linkage of cushion and backrest Download PDFInfo
- Publication number
- CN221382982U CN221382982U CN202323590736.2U CN202323590736U CN221382982U CN 221382982 U CN221382982 U CN 221382982U CN 202323590736 U CN202323590736 U CN 202323590736U CN 221382982 U CN221382982 U CN 221382982U
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- 238000009434 installation Methods 0.000 claims description 24
- 230000000712 assembly Effects 0.000 abstract description 4
- 238000000429 assembly Methods 0.000 abstract description 4
- 210000001503 joint Anatomy 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000008093 supporting effect Effects 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of seats, in particular to a telescopic device for linkage of a cushion and a backrest, which comprises a base, wherein the top of the base is provided with an opening and is provided with a mounting frame capable of moving up and down, and two sides of the base are respectively provided with a movable frame capable of moving back and forth, wherein the mounting frame is used for being connected with the cushion, and the movable frame is used for being connected with the backrest; the seat is characterized in that rotatable swing rods are arranged in the base, the swing rods are in one-to-one correspondence with the movable frames, one ends of the swing rods are in butt joint with the bottoms of the mounting frames, the other ends of the swing rods are connected with the movable frames through connecting rod assemblies, when a person sits on the seat cushion and drives the mounting frames to move downwards, the swing rods are driven by the mounting frames to rotate, and the connecting rod assemblies drive the movable frames to move backwards under the driving of the swing rods so that the backrest moves backwards. Therefore, the mounting frame and the moving frame synchronously move, and the distance of the backrest is adjusted through the weight change of the user so as to adapt to different users.
Description
Technical Field
The utility model relates to the technical field of seats, in particular to a telescopic device for linkage of a cushion and a backrest.
Background
The chair is a seating apparatus with a backrest, wherein armrests are arranged, and the backrest of the existing chair is generally fixed and does not move back and forth. However, the size of the cushion required by the back of a person to lean against the back is different for different persons or different periods of the same person, for example, the size of the cushion is different for developing children, the height and other indexes of the child are changed every day, the child can just sit for a few days before, the child is unsuitable after buying the child, and the child cannot lean against the back in the earlier period.
Disclosure of Invention
The utility model aims to provide a cushion and backrest linkage telescopic device, which enables a mounting frame and a moving frame to synchronously move through the arrangement of a swing rod and a connecting rod assembly, namely, the distance of a backrest is adjusted through the change of the weight of a user so as to adapt to different users, and thus, the problem that the existing backrest cannot move is solved.
The purpose of the utility model is realized in the following way:
the telescopic device comprises a base, wherein the top of the base is provided with an opening and is provided with a mounting frame capable of moving up and down, and moving frames capable of moving back and forth are arranged on two sides of the base, wherein the mounting frame is used for being connected with the cushion, and the moving frames are used for being connected with the backrest;
The seat is characterized in that rotatable swing rods are arranged in the base, the swing rods are in one-to-one correspondence with the movable frames, one ends of the swing rods are in butt joint with the bottoms of the mounting frames, the other ends of the swing rods are connected with the movable frames through connecting rod assemblies, when a person sits on the seat cushion and drives the mounting frames to move downwards, the swing rods are driven by the mounting frames to rotate, and the connecting rod assemblies drive the movable frames to move backwards under the driving of the swing rods so that the backrest moves backwards.
Preferably, a gas spring is arranged in the base, a piston rod of the gas spring is connected with the swing rod, and one end, away from the piston rod, of the gas spring is connected with the base.
Preferably, a torsion spring is arranged in the base, one end of the torsion spring is connected with the swing rod, the other end of the torsion spring is connected with the base, and the torsion spring and the gas spring are respectively positioned on the front side and the rear side of the swing rod.
Preferably, the two moving frames are connected through a screw rod, a built-in rod of the base is provided with a first groove rail corresponding to two ends of the screw rod, and the connecting rod assembly is used for connecting the screw rod and the first rod;
The connecting rod assembly comprises a first main connecting rod, a second main connecting rod, a third main connecting rod and a fourth main connecting rod, wherein one end of the first main connecting rod is connected with the screw rod, one end of the fourth main connecting rod is connected with the first rod, teeth are meshed and connected between the first main connecting rod and the second main connecting rod, between the second main connecting rod and the third main connecting rod and between the third main connecting rod and the fourth main connecting rod, a bearing is arranged at the joint between the second main connecting rod and the third main connecting rod, and the bearing moves in the first grooved rail.
Preferably, the two moving frames are connected through a screw rod, a second rod is arranged in the base, a first groove rail is arranged corresponding to the screw rod, and the connecting rod assembly is used for connecting the screw rod and the second rod;
The connecting rod assembly comprises a first main connecting rod, a second main connecting rod, a third main connecting rod and a fourth main connecting rod, wherein one end of the first main connecting rod is connected with the screw rod, one end of the fourth main connecting rod is connected with the second rod, and the first main connecting rod is connected with the second main connecting rod, the second main connecting rod is connected with the third main connecting rod, and the third main connecting rod is connected with the fourth main connecting rod through rotating shafts.
Preferably, the base comprises a bottom plate and a shell, the top of the bottom plate is positioned in the shell, and the shell is provided with the mounting frame, the movable frame, the first grooved rail and the second grooved rail;
the two sides of the bottom plate are provided with a second grooved rail, and the middle parts of the first main connecting rod, the second main connecting rod, the third main connecting rod and the fourth main connecting rod are provided with bearings which move in the second grooved rail.
Preferably, mounting plates are arranged on two sides of the mounting frame, a first connecting plate is arranged at the front end and the rear end of the mounting frame, and two ends of the first connecting plate are respectively connected with the mounting frame and the base;
The base is internally provided with two first installation rods and two third installation rods, the base is provided with first long-strip holes corresponding to the two ends of the third installation rods, the mounting plates are provided with clamping grooves corresponding to the first installation rods, the second installation rods are arranged between the two mounting plates, and the two ends of the first connecting plate are respectively connected with the second installation rods and the third installation rods.
Preferably, the base is provided with a third connecting plate at two sides of two ends of the mounting frame, one end of the mounting frame is provided with a fourth connecting plate, and two ends of the fourth connecting plate are respectively connected with the mounting frame and the third connecting plate;
The installation rack is characterized in that a connecting plate five is arranged at the other end of the installation rack, the installation rack and a connecting plate three are respectively connected to the two ends of the connecting plate five, the connecting plate five is connected with the connecting plate three through a connecting plate six, the connecting plate six is connected with the connecting plate three through a mounting rod five, and a strip hole two is formed in the connecting plate three corresponding to the mounting rod five.
Compared with the prior art, the utility model has the following outstanding and beneficial technical effects:
According to the utility model, through the arrangement of the swing rod and the connecting rod assembly, the installation frame and the movable frame synchronously move, namely, the distance of the backrest is adjusted through the weight change of a user, so that the backrest is suitable for different users.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment.
Fig. 2 is a split structural schematic diagram of the first embodiment.
FIG. 3 is a schematic diagram of a link assembly related structure according to an embodiment.
Fig. 4 is a schematic structural view of a link assembly according to an embodiment.
Fig. 5 is a schematic view of the structure of the moving frame and the screw.
Fig. 6 is a schematic structural view of a mounting frame according to an embodiment.
Fig. 7 is a schematic structural diagram of the second embodiment.
Fig. 8 is a schematic diagram of a split structure of the second embodiment.
Fig. 9 is a schematic structural diagram of a related structure of a two-bar linkage assembly according to an embodiment.
Fig. 10 is a schematic structural view of a mounting frame according to the second embodiment.
Reference numerals: 1-a base; 11-assembling a rack; 12-connecting rod II; 121-plate two; 122-plate three;
13-groove rail I; 14-a bottom plate; 141-groove rail II; 15-a housing; 16-short plates; 17-mounting a first rod;
18-strip hole I; 19-connecting plates III; 191-strip hole two; 2-mounting frames; 21-a mounting plate;
211-clamping grooves; 22-mounting a second rod; 3-a moving rack; 31-assembling plates; 4-swinging rod; 41-connecting rod one;
A 5-link assembly; 51-primary link one; 52-a second main connecting rod; 53-a main connecting rod III; 54-a main connecting rod IV;
55-bearing; 56-plate one; 57—slave links; 6-a gas spring; 61-a piston rod; 7-torsion springs;
8-a screw; 81-plate body; 9-connecting a plate I; 91-connection part one; 92-mounting a rod IV;
10-connecting plates six; 101-mounting a rod five; 20-connecting a plate II; 30-connecting a plate IV; 301-second pole; and 40-connecting plates.
Detailed Description
The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings.
Embodiment one:
As shown in fig. 1 to 10, a telescopic device for linkage of a seat cushion and a backrest comprises a base 1, wherein the top of the base 1 is provided with an opening and a mounting frame 2 capable of moving up and down, and two sides of the base 1 are respectively provided with a moving frame 3 capable of moving back and forth, wherein the mounting frame 2 is used for being connected with the seat cushion, and the moving frame 3 is used for being connected with the backrest.
Meanwhile, a rotatable swing rod 4 is arranged in the base 1, the swing rods 4 are in one-to-one correspondence with the movable frames 3, one end of each swing rod 4 is in butt joint with the bottom of the corresponding mounting frame 2, and the other end of each swing rod 4 is connected with the movable frame 3 through a connecting rod assembly 5.
Therefore, in the actual use process, when a person sits on the seat cushion and drives the mounting frame 2 to move downwards, the swinging rod 4 is driven by the mounting frame 2 to rotate, and the connecting rod assembly 5 is driven by the swinging rod 4 to drive the movable frame 3 to move backwards so as to enable the backrest to move backwards. Therefore, the utility model can lead the installation frame 2 and the movable frame 3 to synchronously move through the arrangement of the swing rod 4 and the connecting rod assembly 5, namely, the distance of the backrest can be adjusted through the weight change of the user so as to adapt to different users.
Meanwhile, a gas spring 6 is arranged in the base 1, a piston rod 61 of the gas spring 6 is connected with the swing rod 4, and one end, away from the piston rod 61, of the gas spring 6 is connected with the base 1.
The gas spring 6 is an industrial fitting which can play the roles of supporting, buffering, braking, height adjustment, angle adjustment and the like. It is composed of the following parts: the cylinder control element and the cylinder outside control element refer to controllable gas springs, joints and the like. The principle is that inert gas or oil-gas mixture is filled in a closed pressure cylinder to make the pressure in the cavity be several times or tens times higher than the atmospheric pressure, and the piston rod is moved by the pressure difference generated by the fact that the cross section area of the piston rod is smaller than that of the piston.
Therefore, in the actual use process, the air spring 6 can play a role in buffering, so that the moving frame 3 moves more stably, and the reset is performed when no one sits.
As shown in fig. 1 to 3, the mounting structure of the gas spring 6 is: first, a first connecting rod 41 is arranged between the two swing rods 4, and a piston rod 61 is connected with the first connecting rod 41. Meanwhile, the assembly frame 11 is arranged in the base 1, and one end, away from the piston rod 61, of the gas spring 6 is connected with the assembly frame 11.
And other shafts are arranged between the two swing rods 4 and used for connecting and supporting the two swing rods 4.
As shown in fig. 1 to 6, the moving and mounting structure of the mounting frame 2 is: firstly, mounting plates 21 are arranged on two sides of the mounting frame 2, a first connecting plate 9 is arranged at the front end and the rear end of the mounting frame 2, and two ends of the first connecting plate 9 are respectively connected with the mounting frame 2 and the base 1.
Meanwhile, two first mounting rods 17 and two third mounting rods are arranged in the base 1, two long holes 18 are formed in the base 1 corresponding to the two ends of the third mounting rods, clamping grooves 211 are formed in the mounting plates 21 corresponding to the first mounting rods 17, two second mounting rods 22 are arranged between the two mounting plates 21, and two ends of the first connecting plate 9 are respectively connected with the second mounting rods 22 and the third mounting rods.
Thus, in the practical use process, when the mounting frame 2 moves downwards, the first connecting plate 9 moves along with the movement, namely, one end of the first connecting plate 9 connected with the mounting frame 2 moves downwards, and at the moment, the other end of the first connecting plate 9 also moves along with the movement, namely, the mounting rod three moves in the first long hole 18.
Secondly, connecting portions I91 are arranged on two sides of the connecting plate I9, a mounting rod IV 92 is arranged between the two connecting portions I91, and two ends of the connecting plate II 20 are respectively connected with the mounting rod I17 and the mounting rod IV 92.
As shown in fig. 1-6, the two moving frames 3 are connected by a screw rod 8, a groove rail one 13 is arranged at the two ends of the screw rod 8 corresponding to the built-in rod of the base 1, and the connecting rod assembly 5 is used for connecting the screw rod 8 and the rod one.
Wherein the structure between the movable frame 3 and the screw rod 8 is: first, the assembly plate 31 is provided at the bottom of the moving frame 3, and the screw 8 passes through the assembly plate 31 and the moving frame 3 is provided on the screw 8 by tightening a nut.
And the number of screws 8 may be two, and the two may be connected by a plate 81.
Meanwhile, the first rod can be one of the two mounting rods 17, and the structure of the connecting rod assembly 5 is as follows: first, the link assembly 5 includes a first main link 51, a second main link 52, a third main link 53 and a fourth main link 54, wherein one end of the first main link 51 is connected with the screw 8, one end of the fourth main link 54 is connected with the first rod, tooth engagement connection is formed between the first main link 51 and the second main link 52, between the second main link 52 and the third main link 53, and between the third main link 53 and the fourth main link 54, and a bearing 55 is disposed at the connection position between the second main link 52 and the third main link 53, and the bearing 55 moves in the first grooved rail 13.
The teeth are engaged and connected, namely, the ends of the first main connecting rod 51, the second main connecting rod 52, the third main connecting rod 53 and the fourth main connecting rod 54 are provided with a plurality of teeth so as to be connected.
Therefore, in the practical use process, when the mounting frame 2 moves downwards, the connecting rod assembly 5 moves, namely the first main connecting rod 51, the second main connecting rod 52, the third main connecting rod 53 and the fourth main connecting rod 54 move, the bearing 55 moves in the first grooved rail 13, and the bearing 55 moves in the first grooved rail 13, so that the movement of the first main connecting rod 51, the second main connecting rod 52, the third main connecting rod 53 and the fourth main connecting rod 54 is limited and guided to a certain extent.
As shown in fig. 1 to 6, the other detailed structure of the link assembly 5 is: first, two sides of the joint between the second main connecting rod 52 and the third main connecting rod 53 are provided with a first plate 56, the first plate 56 is used for connecting the second main connecting rod 52 and the third main connecting rod 53, and the outer side of the first plate 56 positioned at the outer side is also provided with a bearing 55.
Meanwhile, the middle parts of the first main connecting rod 51, the second main connecting rod 52, the third main connecting rod 53 and the fourth main connecting rod 54 are respectively provided with a slave connecting rod 57, and the slave connecting rods 57 are connected through rotating shafts, so that a certain supporting effect is achieved on the first main connecting rod 51, the second main connecting rod 52, the third main connecting rod 53 and the fourth main connecting rod 54.
Embodiment two: this embodiment is substantially the same as embodiment one, except that: torsion springs 7 are added and the structure of the link assembly 5 and the mounting frame 2 are different.
As shown in fig. 7 to 10, first, the mounting frame 2 has the following structure: first, the base 1 is provided with a third connecting plate 19 on two sides of two ends of the mounting frame 2, one end of the mounting frame 2 is provided with a fourth connecting plate 30, and two ends of the fourth connecting plate 30 are respectively connected with the mounting frame 2 and the third connecting plate 19.
Meanwhile, the other end of the installation frame 2 is provided with a connecting plate five 40, two ends of the connecting plate five 40 are respectively connected with the installation frame 2 and a connecting plate three 19, the connecting plate five 40 is connected with the connecting plate three 19 through a connecting plate six 10, the connecting plate six 10 is connected with the connecting plate three 19 through a mounting rod five 101, and the connecting plate three 19 is provided with a strip hole two 191 corresponding to the mounting rod five.
Therefore, in the practical use process, when the mounting frame 2 moves downwards, the connection plate five 40 and the connection plate four 30 move along with each other, namely, one end of the connection plate five 40 connected with the mounting frame 2 moves downwards, and at the moment, the connection plate six 10 moves along with the connection plate five 40, namely, the mounting rod five moves in the strip hole two 191.
As shown in fig. 7 to 10, the torsion spring 7 has the structure: firstly, a torsion spring 7 is arranged in the base 1, one end of the torsion spring 7 is connected with the swing rod 4, the other end of the torsion spring 7 is connected with the base 1, and the torsion spring 7 and the gas spring 6 are respectively positioned on the front side and the rear side of the swing rod 4.
Therefore, in the actual use process, the torsion spring 7 is matched with the air spring 6, so that the moving frame 3 can move more stably, and can be reset better.
Wherein the mounting structure of torsion spring 7 is: first, a second connecting rod 12 is arranged in the base 1, the torsion spring 7 is sleeved on the second connecting rod 12, and the second connecting rod 12 is connected with a second rod 301 through a third plate 122 and is connected with the swing rod 4 through a second plate 121.
Meanwhile, a first connecting rod 41 is arranged between the two swing rods 4, one end of the torsion spring 7 is connected with the first connecting rod 41, and holes are formed in the base 1 corresponding to the torsion springs 7, namely the torsion springs 7 and the gas springs 6 are respectively located on the front side and the rear side of the first connecting rod 41.
As shown in fig. 7-10, the two moving frames 3 are connected through the screw rod 8, the second rod 301 is arranged in the base 1, the first groove rail 13 is arranged corresponding to the screw rod 8, and the connecting rod assembly 5 is used for connecting the screw rod 8 and the second rod 301.
Meanwhile, the second rod 301 is used for connecting the fourth connecting plate 30 and the third connecting plate 19, and the connecting rod assembly 5 has the structure that: first, the link assembly 5 includes a first main link 51, a second main link 52, a third main link 53, and a fourth main link 54, wherein one end of the first main link 51 is connected to the screw 8, one end of the fourth main link 54 is connected to the second lever 301, and the first main link 51 is connected to the second main link 52, the second main link 52 is connected to the third main link 53, and the third main link 53 is connected to the fourth main link 54 through a rotation shaft.
Therefore, in the practical use process, when the mounting frame 2 moves downwards, the connecting rod assembly 5 moves, namely the first main connecting rod 51, the second main connecting rod 52, the third main connecting rod 53 and the fourth main connecting rod 54 move, so that the moving frame 3 is driven to move.
Meanwhile, the base 1 comprises a bottom plate 14 and a shell 15, the top of the bottom plate 14 is positioned in the shell 15, and the shell 15 is provided with a mounting frame 2, a movable frame 3, a first grooved rail 13 and a second rod 301.
And the two sides of the bottom plate 14 are provided with the second grooved rail 141, and the middle parts of the first main connecting rod 51, the second main connecting rod 52, the third main connecting rod 53 and the fourth main connecting rod 54 are provided with the bearing 55, and the bearing 55 moves in the second grooved rail 141.
Therefore, in the actual use process, when the first main link 51, the second main link 52, the third main link 53 and the fourth main link 54 move, the bearing 55 moves in the second groove rail 141, and the bearing 55 moves in the second groove rail 141, so that the movement of the first main link 51, the second main link 52, the third main link 53 and the fourth main link 54 is limited and guided.
And the middle parts of the first main connecting rod 51, the second main connecting rod 52, the third main connecting rod 53 and the fourth main connecting rod 54 are also provided with the secondary connecting rods 57, and the two adjacent secondary connecting rods 57 are connected through rotating shafts, so that a certain supporting effect is achieved on the first main connecting rod 51, the second main connecting rod 52, the third main connecting rod 53 and the fourth main connecting rod 54.
And the base plate 14 and the housing 15 are also connected by a short plate 16, i.e. the base plate 14 and the housing 15 are both provided with a shaft and the shaft is connected by the short plate 16.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. While the utility model is not limited to the above-described embodiments, there are various changes and modifications which fall within the scope of the utility model as hereinafter claimed, without departing from the spirit and scope of the utility model.
Claims (8)
1. The telescopic device for the linkage of the cushion and the backrest is characterized by comprising a base (1), wherein the top of the base (1) is provided with an opening and is provided with a mounting frame (2) capable of moving up and down, two sides of the base (1) are respectively provided with a movable frame (3) capable of moving back and forth, the mounting frame (2) is used for being connected with the cushion, and the movable frame (3) is used for being connected with the backrest;
Be provided with rotatable pendulum rod (4) in base (1), and pendulum rod (4) and remove frame (3) one-to-one to pendulum rod (4) one end and mounting bracket (2) bottom butt, and the pendulum rod (4) other end is connected with removing frame (3) through link assembly (5), when the people sits the cushion and drives mounting bracket (2) and move down, pendulum rod (4) are driven by mounting bracket (2) and rotate, and link assembly (5) drive under pendulum rod (4) and drive and remove frame (3) and move backward and then make the back move backward.
2. A cushion and backrest ganged telescoping device as set forth in claim 1, wherein: the base (1) is internally provided with a gas spring (6), a piston rod (61) of the gas spring (6) is connected with the swing rod (4), and one end, far away from the piston rod (61), of the gas spring (6) is connected with the base (1).
3. A cushion and backrest ganged telescopic device as claimed in claim 2, wherein: the base (1) is internally provided with a torsion spring (7), one end of the torsion spring (7) is connected with the swing rod (4), the other end of the torsion spring (7) is connected with the base (1), and the torsion spring (7) and the gas spring (6) are respectively positioned on the front side and the rear side of the swing rod (4).
4. A seat cushion and backrest linked telescopic device according to claim 1 or 2, wherein: the two movable frames (3) are connected through a screw rod (8), a groove rail I (13) is formed in the base (1) and corresponds to the two ends of the screw rod (8), and the connecting rod assembly (5) is used for connecting the screw rod (8) and the screw rod I;
The connecting rod assembly (5) comprises a first main connecting rod (51), a second main connecting rod (52), a third main connecting rod (53) and a fourth main connecting rod (54), wherein one end of the first main connecting rod (51) is connected with the screw rod (8), one end of the fourth main connecting rod (54) is connected with the first rod, teeth are meshed between the first main connecting rod (51) and the second main connecting rod (52), between the second main connecting rod (52) and the third main connecting rod (53) and between the third main connecting rod (53) and the fourth main connecting rod (54), a bearing (55) is arranged at the joint between the second main connecting rod (52) and the third main connecting rod (53), and the bearing (55) moves in the first grooved rail (13).
5. A cushion and backrest ganged telescopic device as claimed in any one of claims 1 to 3, wherein: the two movable frames (3) are connected through a screw rod (8), a second rod (301) is arranged in the base (1) and a first groove rail (13) is arranged corresponding to the screw rod (8), and the connecting rod assembly (5) is used for connecting the screw rod (8) and the second rod (301);
the connecting rod assembly (5) comprises a first main connecting rod (51), a second main connecting rod (52), a third main connecting rod (53) and a fourth main connecting rod (54), wherein one end of the first main connecting rod (51) is connected with the screw rod (8), one end of the fourth main connecting rod (54) is connected with the second rod (301), and the first main connecting rod (51) and the second main connecting rod (52), the second main connecting rod (52) and the third main connecting rod (53) and the fourth main connecting rod (54) are connected through rotating shafts.
6. A cushion and backrest ganged telescopic device as set forth in claim 5, wherein: the base (1) comprises a bottom plate (14) and a shell (15), the top of the bottom plate (14) is positioned in the shell (15), and the shell (15) is provided with the mounting frame (2), the movable frame (3), the groove rail I (13) and the rod II (301);
Grooved rails II (141) are arranged on two sides of the bottom plate (14), bearings (55) are arranged in the middle of the first main connecting rod (51), the second main connecting rod (52), the third main connecting rod (53) and the fourth main connecting rod (54), and the bearings (55) move in the grooved rails II (141).
7. A seat cushion and backrest linked telescopic device according to claim 1 or 2, wherein: mounting plates (21) are arranged on two sides of the mounting frame (2), a first connecting plate (9) is arranged at the front end and the rear end of the mounting frame (2), and two ends of the first connecting plate (9) are respectively connected with the mounting frame (2) and the base (1);
The base (1) is internally provided with two first installation rods (17) and two third installation rods, the base (1) is provided with a first long hole (18) corresponding to the two ends of the third installation rods, the mounting plates (21) are provided with clamping grooves (211) corresponding to the first installation rods (17), two second installation rods (22) are arranged between the two mounting plates (21), and two ends of the first connecting plate (9) are respectively connected with the second installation rods (22) and the third installation rods.
8. A cushion and backrest ganged telescopic device as claimed in any one of claims 1 to 3, wherein: the base (1) is provided with a third connecting plate (19) on two sides of two ends of the mounting frame (2), one end of the mounting frame (2) is provided with a fourth connecting plate (30), and two ends of the fourth connecting plate (30) are respectively connected with the mounting frame (2) and the third connecting plate (19);
The installation rack is characterized in that a connecting plate five (40) is arranged at the other end of the installation rack (2), the installation rack (2) and a connecting plate three (19) are respectively connected to the two ends of the connecting plate five (40), the connecting plate five (40) is connected with the connecting plate three (19) through a connecting plate six (10), the connecting plate six (10) is connected with the connecting plate three (19) through a mounting rod five (101), and the connecting plate three (19) is provided with a strip hole two (191) corresponding to the mounting rod five.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323590736.2U CN221382982U (en) | 2023-12-26 | 2023-12-26 | Telescopic device for linkage of cushion and backrest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323590736.2U CN221382982U (en) | 2023-12-26 | 2023-12-26 | Telescopic device for linkage of cushion and backrest |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221382982U true CN221382982U (en) | 2024-07-23 |
Family
ID=91915530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323590736.2U Active CN221382982U (en) | 2023-12-26 | 2023-12-26 | Telescopic device for linkage of cushion and backrest |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221382982U (en) |
-
2023
- 2023-12-26 CN CN202323590736.2U patent/CN221382982U/en active Active
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