CN212591164U - Seat frame and seat with rise function of leaning forward - Google Patents
Seat frame and seat with rise function of leaning forward Download PDFInfo
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- CN212591164U CN212591164U CN202021599609.2U CN202021599609U CN212591164U CN 212591164 U CN212591164 U CN 212591164U CN 202021599609 U CN202021599609 U CN 202021599609U CN 212591164 U CN212591164 U CN 212591164U
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Abstract
The utility model relates to a seat frame with ascending and forward-inclining functions, which comprises a base frame, a lifting component, a driving component and a telescopic connecting rod component; the telescopic connecting rod component is connected with a foot connecting piece and a backrest connecting piece; the driving assembly is used for driving the telescopic connecting rod assembly to change the relative positions of the foot connecting piece and the backrest connecting piece, and the driving assembly is used for driving the lifting assembly to lift; the lifting assembly comprises a lifting connecting plate, a first lifting connecting rod, a second lifting connecting rod and a supporting seat, one end of the first lifting connecting rod and one end of the second lifting connecting rod are respectively rotatably connected with the supporting seat, the other end of the first lifting connecting rod and the other end of the second lifting connecting rod are respectively rotatably connected with the lifting connecting plate, and the lifting connecting plate is further respectively connected with the driving assembly and the telescopic connecting rod assembly. The original complex frame structure is replaced by the lifting connecting plate, so that the weight of the original seat frame is reduced, the assembly error is reduced, the whole structure is stable, and the manufacturing cost is greatly reduced.
Description
Technical Field
The utility model relates to the field of furniture, especially, relate to a seat frame and seat with rise function of leaning forward.
Background
With the development of science and technology and the increasing improvement of the living standard of people, the requirement of people on the versatility of the seat unit is higher and higher. The function of the chair for the old is mainly used for helping the old with inconvenient legs and feet and poor waist strength to stand up from the sofa, thereby facilitating the activities of the old.
In the prior art, in order to stabilize the structure of a lifting part and increase the comfort level, the geriatric chair is installed by adopting an integral frame, for example, application No. 201510965955.5 discloses a geriatric chair mechanical device which comprises a left part, a right part and a lifting base, wherein the left part and the right part are respectively provided with a geriatric chair armrest installation plate, a second lifting connecting piece, a leg conversion piece, a first lifting connecting piece, a front-back conversion connecting piece, a backrest conversion connecting piece, a geriatric chair seat frame installation plate, a rear installation support, a geriatric chair foot bar I, a geriatric chair foot bar II, a geriatric chair foot bar III, a geriatric chair foot bar IV, a geriatric chair foot bar, a geriatric chair connecting rod, a third lifting connecting; the lifting base comprises a chassis, a lifting frame, a lifting connecting rod, a welding connecting piece and an adjustable connecting piece; still be provided with electric actuator, electric actuator includes motor, motor push rod, and the motor rotates to be installed on the chassis, and motor push rod rotates with welded connection spare to be connected. The chair is safe and stable, firm in structure, high in installation efficiency, material-saving and perfect in design of the chair for the old people.
However, in order to stabilize the structure of the old people chair in the prior art, the whole frame adopted by the lifting mechanism of the old people chair needs to be welded, so that the assembly error is large, the structure is heavy, and the lifting process needs to be realized by providing large driving force.
Accordingly, it is desirable to provide a seat frame structure that can reduce the weight and assembly error of the lift mechanism while maintaining a stable structure.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a seat frame and seat with function of inclining forward rises, it replaces original complicated frame construction through a lift connecting plate, has not only reduced the weight of original seat frame, has still reduced assembly error simultaneously, overall structure is stable and cost of manufacture greatly reduced.
The technical effects of the utility model are through following realization:
the utility model provides a seat frame with ascending and forward-leaning functions, which comprises a base frame, a lifting component, a driving component and a telescopic connecting rod component; the telescopic connecting rod assembly is connected with a foot connecting piece and a backrest connecting piece; the drive assembly is used for driving the telescopic connecting rod assembly to change the relative positions of the foot connecting piece and the backrest connecting piece, and the drive assembly is used for driving the lifting assembly to lift;
the lifting assembly comprises a lifting connecting plate, a first lifting connecting rod, a second lifting connecting rod and a supporting seat, the supporting seat is fixedly connected with the base frame, one end of the first lifting connecting rod and one end of the second lifting connecting rod are respectively and rotatably connected with the supporting seat, the other end of the first lifting connecting rod and the other end of the second lifting connecting rod are respectively and rotatably connected with the lifting connecting plate, and the lifting connecting plate is also respectively connected with the driving assembly and the telescopic connecting rod assembly;
the telescopic connecting rod component comprises a foot connecting rod component, a back connecting rod component and a middle connecting rod component, one end of a first middle connecting rod of the middle connecting rod component is rotationally connected with the back connecting piece, the other end of the first middle connecting rod of the middle connecting rod component is rotationally connected with the foot connecting rod component,
the foot connecting rod assembly comprises a first foot connecting rod, a second foot connecting rod, a third foot connecting rod and a fourth foot connecting rod, one end of each of the first foot connecting rod and the second foot connecting rod is rotatably connected with the foot connecting piece, the other end of each of the first foot connecting rod is rotatably connected with one end of the third foot connecting rod, and the other end of each of the third foot connecting rods is connected with the first middle connecting rod; the other end of the second foot connecting rod is rotatably connected with one end of a fourth foot connecting rod, the other end of the fourth foot connecting rod is rotatably connected with one end of a second middle connecting rod of the middle connecting rod assembly, and the other end of the second middle connecting rod is rotatably connected to the lifting connecting plate.
Furthermore, the lifting connecting plate is of an integral plate-shaped structure, and the driving assembly and the telescopic connecting rod assembly are riveted with the lifting connecting plate.
Further, the other ends of the first lifting connecting rod and the second lifting connecting rod are respectively in rotating riveting with the lifting connecting plate.
Furthermore, the lifting assembly and the telescopic connecting rod assemblies are two groups and are symmetrically arranged along the central plane of the base frame, the first lifting connecting rod is located below the second lifting connecting rod, and a first stabilizing connecting rod is arranged between the two first lifting connecting rods.
Further, two the supporting seat is located base frame's vertical underframe lateral surface, first lifting connecting rod is located the lateral surface of supporting seat, vertical underframe is used for spacing the first stable connecting rod minimum descending position.
Furthermore, a second stabilizing connecting rod is connected between the two lifting connecting plates, and the upper end of the supporting seat is used for limiting the lowest descending position of the second stabilizing connecting rod.
Furthermore, the driving assembly comprises a driving rod, a push rod connecting piece, a lifting connecting piece and a telescopic driving connecting rod assembly; the lifting connecting plate is connected with the lifting connecting plate, and the two ends of the driving rod are also connected with the telescopic connecting rod assembly.
Furthermore, both ends of the driving rod are provided with driving rod riveting sheets, the driving rod riveting sheets are riveted with the lifting connecting sheets, and the telescopic driving connecting rod assembly is connected with the lifting connecting sheets.
Further, the drive end of the telescopic driving connecting rod assembly is riveted with the telescopic connecting rod assembly.
In addition, the present application also provides a seat comprising a backrest support portion, a foot support portion and a seat frame, the seat frame comprising a base frame, a lifting assembly, a drive assembly and a telescopic link assembly;
the telescopic connecting rod assembly is connected with a foot connecting piece and a backrest connecting piece; the drive assembly is used for driving the telescopic connecting rod assembly to change the relative positions of the foot connecting piece and the backrest connecting piece, and the drive assembly is used for driving the lifting assembly to lift; the backrest supporting part is connected with the backrest connecting part, and the foot supporting part is connected with the foot connecting part;
the lifting assembly comprises a lifting connecting plate, a first lifting connecting rod, a second lifting connecting rod and a supporting seat, the supporting seat is fixedly connected with the base frame, one end of the first lifting connecting rod and one end of the second lifting connecting rod are respectively connected with the supporting seat in a rotating mode, the other end of the first lifting connecting rod and the other end of the second lifting connecting rod are respectively connected with the lifting connecting plate in a rotating mode, and the lifting connecting plate is further respectively connected with the driving assembly and the telescopic connecting rod assembly.
As described above, the utility model discloses following beneficial effect has:
(1) the original complex frame structure is replaced by the lifting connecting plate, so that the weight of the original seat frame is reduced, the assembly error is reduced, the whole structure is stable, the assembly process is simplified, the manufacturing cost is reduced, and the production efficiency is improved;
(2) each part connected with the lifting connecting plate is riveted, so that the positioning is more accurate, the installation error is smaller, and the overall structure matching is more accurate; all actions of the seat frame are integrated on a lifting connecting plate for riveting to serve as an independent module, and the pipe fittings are also independently used, so that the seat frame can be matched with other different bases more easily;
(3) through the direct actuating lever both ends with treat that actuating mechanism is connected, with stress point average distribution in both sides, the atress is more even, and the drive is more stable, has reduced the condition that the structure takes place to shake at the lift in-process.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiment or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic view of a sitting position of a seat frame according to an embodiment of the present invention;
FIG. 2 is a schematic view of a portion of the seat frame in a sitting position according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a portion of a seat frame in a TV posture state according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a part of the seat frame in the lying position according to the embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a portion of the seat frame in the upright position according to an embodiment of the present invention;
fig. 6 is a schematic structural view of the lifting assembly in the sitting posture state according to the embodiment of the present invention;
fig. 7 is a schematic structural view of the lifting assembly in the standing position state according to the embodiment of the present invention;
fig. 8 is a front view of the lifting connection plate in the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example 1:
in the present embodiment, a seat frame with a function of ascending and inclining forward is provided, which can be used for a seat unit, in particular, a chair for an old people. Accordingly, in this embodiment, the seat frame can change four postures corresponding to a sitting posture, a TV posture, a lying posture and a standing posture of the seat respectively, wherein the sitting posture is a state when the seat is used daily, the leg portion of the seat is contracted, the backrest is close to vertical, and the seat is suitable for a user to sit down for rest daily, the TV posture is a state when the leg portion of the seat is extended, correspondingly, the inclination angle of the backrest is unchanged or slightly inclined backwards, and the seat frame is suitable for a user to be in a relaxed state when the user watches television, and the lying posture is that the leg portion of the seat is further lifted, and the backrest is further inclined backwards and then lowered, and the seat frame is suitable for the.
Fig. 1 is a schematic structural diagram of a seat frame in a sitting posture state according to an embodiment of the present invention, and fig. 3 is a schematic structural diagram of a part of the seat frame in a TV posture state according to an embodiment of the present invention; FIG. 4 is a schematic structural diagram of a part of the seat frame in the lying position according to the embodiment of the present invention; FIG. 5 is a schematic structural diagram of a portion of the seat frame in the upright position according to an embodiment of the present invention;
specifically, as shown in fig. 1-8, in the present embodiment, the seat frame includes a base frame 1, a lift assembly 2, a drive assembly 3, and a telescoping link assembly 4; the telescopic connecting rod component 4 is connected with a foot connecting piece 5 and a backrest connecting piece 6; the driving assembly 3 is used for driving the telescopic connecting rod assembly 4 to change the relative positions of the foot connecting piece 5 and the backrest connecting piece 6, and the driving assembly 3 is used for driving the lifting assembly 2 to lift;
the lifting assembly 2 comprises a lifting connecting plate 21, a first lifting connecting rod 22, a second lifting connecting rod 23 and a supporting seat 25, the supporting seat 25 is fixedly connected with the base frame 1, one ends of the first lifting connecting rod 22 and the second lifting connecting rod 23 are respectively rotatably connected with the supporting seat 25, the other ends of the first lifting connecting rod 22 and the second lifting connecting rod 23 are respectively rotatably connected with the lifting connecting plate 21, and the lifting connecting plate 21 is further respectively connected with the driving assembly 3 and the telescopic connecting rod assembly 4. The original complex frame structure is replaced by the lifting connecting plate, so that the weight of the original seat frame is reduced, the assembly error is reduced, the whole structure is stable, and the manufacturing cost is greatly reduced.
The driving assembly 3 comprises a driving rod 31, a push rod connecting piece 32, a lifting connecting piece 33 and a telescopic driving connecting rod assembly 34; a push rod connecting piece 32 is arranged in the middle of a driving rod of the telescopic driving connecting rod assembly 34, the push rod connecting piece 32 is used for being connected with a push rod of a driving source, two ends of the driving rod 31 are respectively connected with a lifting connecting piece 33, the lifting connecting piece 33 is connected with the lifting connecting plate 21, and two ends of the driving rod 31 are also connected with the telescopic connecting rod assembly 4; the drive end of the telescopic drive link assembly 34 is riveted to the telescopic link assembly 4.
Specifically, the telescopic link assembly 4 includes a foot link assembly 41, a back link assembly 42, and a middle link assembly 43, and the first middle link 431 of the middle link assembly 43 has one end rotatably connected to the backrest connection member 6, one end rotatably connected to the foot link assembly 41,
the back connecting rod assembly 42 comprises a first backrest connecting rod 421, one end of the first backrest connecting rod 421 is rotatably connected with the backrest connecting piece 6, the other end is rotatably connected with the lifting connecting plate 21,
the foot link assembly 41 comprises a first foot link 411, a second foot link 412, a third foot link 413 and a fourth foot link 414, one end of each of the first foot link 411 and the second foot link 412 is rotatably connected with the foot connecting piece 5, the other end of the first foot link 411 is rotatably connected with one end of the third foot link 413, and the other end of the third foot link 413 is connected with a first intermediate link 431; the other end of the second foot link 412 is rotatably connected to one end of the fourth foot link 414, the other end of the fourth foot link 414 is rotatably connected to one end of a second intermediate link 432 of the intermediate link assembly 43, and the other end of the second intermediate link 432 is rotatably connected to the lifting link plate 21;
the telescopic driving link assembly 34 includes a telescopic driving link 341 and a telescopic driving link 342, wherein the lifting link 33 is rotatably connected to one end of the telescopic driving link 341, the other end of the telescopic driving link 341 is rotatably connected to the telescopic driving link 342, and the telescopic driving link 342 is fixedly connected to the first intermediate link 431, in this embodiment, riveted. The rotary connection mode of the components can be riveting rotation, and can also be pin shaft, step bolt and the like to realize rotary connection.
Furthermore, the lifting connecting plate 21 is of an integral plate-shaped structure, and the driving assembly 3 and the telescopic connecting rod assembly 4 are riveted with the lifting connecting plate 21;
the other ends of the first lifting connecting rod 22 and the second lifting connecting rod 23 are respectively in rotating riveting with the lifting connecting plate 21.
As mentioned above, each part connected with the lifting connecting plate is riveted, so that the positioning is more accurate, the installation error is smaller, and the overall structure is more accurate in matching.
Specifically, in this embodiment, the seat frame is a bilateral symmetry structure, the lifting component 2 and the telescopic link assembly 4 are two sets and are symmetrically disposed along the central plane of the base frame 1, the first lifting link 22 is located below the second lifting link, the first stabilizing link 24 is disposed between the two first lifting links 22, the transmission modes on both sides are the same, stable driving without error can be realized, specifically, in order to realize the stability of the transmission mechanisms on both sides, the outer side surface of the vertical bottom frame 11 of the base frame 1 is disposed on the two supporting seats 25, the outer side surface of the supporting seat 25 is disposed on the first lifting link 22, and the vertical bottom frame 11 is used for limiting the lowest descending position of the first stabilizing link 24.
When the seat is switched back to the sitting posture from the standing posture, the first lifting connecting rod 22 is in the descending process, the first stabilizing connecting rod 24 does not descend after being collided with the longitudinal bottom frame 11, therefore, the first stabilizing connecting rod 24 not only increases the stability of the first lifting connecting rod 22, so that the first lifting connecting rod 22 can not shake relatively in the moving process, the strength is higher, the limiting and supporting effects are achieved simultaneously, the descending lowest position of the first lifting connecting rod 22 is limited, the seat can be switched between the sitting posture and the TV posture and the lying posture, and the supporting force is stably provided by the structure below.
And furthermore, be connected with second stabilizing connecting rod 35 between two lift connecting plates 21, in this embodiment, the upper end of supporting seat 25 is used for spacing the minimum decline position of second stabilizing connecting rod 35, in other embodiments, also can set up stop gear in addition on the base frame and make it carry out spacing cooperation with second stabilizing connecting rod 35, second stabilizing connecting rod 35 has not only played the effect of strengthening two lift connecting plates 21 stability, can further guarantee to descend spacing of minimum, and first stabilizing connecting rod 24 has played the effect of dual fail-safe.
In addition, the seat frame in this embodiment is driven by a driving motor, and with reference to fig. 1 to 6, the push rod connector 32 is rotatably connected to one end of a motor push rod 71 of the driving motor 7, and a housing 72 of the driving motor 7 is rotatably connected to the base frame 1.
The motor push rod 71 can be divided into a first position, a second position, a third position and a fourth position according to the extension degree thereof, and respectively corresponds to four postures of the lying posture, the TV posture, the sitting posture and the standing posture of the seat.
When the motor push rod 71 is located at the third position, namely when the sofa is in a sitting posture, the foot connecting rod assembly 41 is in a contraction state at the moment, the motor push rod 71 is driven to contract, the drive rod 31 is driven to move towards the motor shell through the push rod connecting piece 32, the drive rod 31 drives the telescopic drive connecting rod 341 to rotate through driving the lifting connecting piece 33, so that the telescopic drive connecting piece 342 is further driven to drive the first intermediate connecting rod 431 to move towards the backrest connecting piece, the foot connecting rod assembly 41 is changed from the contraction state to the extension state, and finally the motor push rod 71 moves to the second position, so that the TV posture is adjusted;
when the motor push rod 71 is located at the second position, the motor push rod 71 is further contracted, the foot connecting rod assembly 41 is further lifted at the moment, the backrest connecting piece 6 is driven by the first intermediate connecting rod 431 to tilt backwards, and when the motor push rod 71 finally moves to the first position from the second position, the foot connecting piece 5 is higher than the backrest connecting piece 6 to form a lying posture.
The specific transmission relationship of the process of switching the sofa from the lying posture to the TV posture and the process of switching the TV posture to the sitting posture, namely moving the motor push rod 71 from the first position to the second position and moving the motor push rod 71 from the second position to the third position, is opposite to the process of stretching and opening, and is not described again.
In addition, when the motor push rod 71 is further pushed forward from the third position to the fourth position, the seat is switched from the sitting position to the standing position, and the specific process at this time is that the motor push rod 71 drives the driving rod 31 to move forward and upward through the push rod connecting piece 32, the driving rod 31 drives one end of the lifting connecting plate 21 to move through the lifting connecting piece 33, the lifting connecting plate 21 is rotationally connected with the first lifting connecting rod 22 and the second lifting connecting rod 23 at the same time, as can be seen from fig. 7 to 8, the first lifting connecting rod 22 and the second lifting connecting rod 23 are rotationally connected with the supporting seat 25 fixed on the base frame 1, so that the lifting connecting plate 21 rises with a predetermined radian, and drives the telescopic connecting rod assembly 4 connected to the lifting connecting plate 21 to rise together, and the telescopic connecting rod assembly 4 is in a forward tilting state, and the motor push rod 71 reaches the fourth position, so as to form, so that the old people with weak physical strength and other people can stand up in a labor-saving way.
Example 2:
in the present embodiment, a seat is provided, which includes a backrest support portion, a foot support portion and a seat frame, wherein the seat frame includes a base frame 1, a lifting assembly 2, a driving assembly 3 and a telescopic link assembly 4; the backrest support part is fixedly connected with the backrest connecting part 6 to realize the posture transformation, and the foot support part and the foot connecting part 5 are used for realizing the posture transformation. Accordingly, in this embodiment, the seat frame can change four postures corresponding to a sitting posture, a TV posture, a lying posture and a standing posture of the seat respectively, wherein the sitting posture is a state when the seat is used daily, the leg portion of the seat is contracted, the backrest is close to vertical, and the seat is suitable for a user to sit down for rest daily, the TV posture is a state when the leg portion of the seat is extended, correspondingly, the inclination angle of the backrest is unchanged or slightly inclined backwards, and the seat frame is suitable for a user to be in a relaxed state when the user watches television, and the lying posture is that the leg portion of the seat is further lifted, and the backrest is further inclined backwards and then lowered, and the seat frame is suitable for the.
Wherein, the telescopic connecting rod component 4 is connected with a foot connecting piece 5 and a backrest connecting piece 6; the driving assembly 3 is used for driving the telescopic connecting rod assembly 4 to change the relative positions of the foot connecting piece 5 and the backrest connecting piece 6, and the driving assembly 3 is used for driving the lifting assembly 2 to lift; the backrest support part is connected with the backrest connecting piece 6, and the foot support part is connected with the foot connecting piece 5;
the lifting assembly 2 comprises a lifting connecting plate 21, a first lifting connecting rod 22, a second lifting connecting rod 23 and a supporting seat 25, the supporting seat 25 is fixedly connected with the base frame 1, one ends of the first lifting connecting rod 22 and the second lifting connecting rod 23 are respectively rotatably connected with the supporting seat 25, the other ends of the first lifting connecting rod 22 and the second lifting connecting rod 23 are respectively rotatably connected with the lifting connecting plate 21, and the lifting connecting plate 21 is further respectively connected with the driving assembly 3 and the telescopic connecting rod assembly 4. The original complex frame structure is replaced by the lifting connecting plate, so that the weight of the original seat frame is reduced, the assembly error is reduced, the whole structure is stable, and the manufacturing cost is greatly reduced.
Specifically, the connection manner of the related components can refer to the connection manner of the seat frame in embodiment 1, and details are not repeated.
As described above, the utility model discloses following beneficial effect has:
(1) the original complex frame structure is replaced by the lifting connecting plate, so that the weight of the original seat frame is reduced, the assembly error is reduced, the whole structure is stable, and the manufacturing cost is greatly reduced;
(2) each part connected with the lifting connecting plate is riveted, so that the positioning is more accurate, the installation error is smaller, and the overall structure matching is more accurate;
(3) through the direct actuating lever both ends with treat that actuating mechanism is connected, with stress point average distribution in both sides, the atress is more even, and the drive is more stable, has reduced the condition that the structure takes place to shake at the lift in-process.
In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The embodiments and features of the embodiments described herein above can be combined with each other without conflict.
The above disclosure is only a preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the invention, which is defined by the claims and their equivalents.
Claims (10)
1. A seat frame with ascending and forward-inclining functions is characterized by comprising a base frame (1), a lifting assembly (2), a driving assembly (3) and a telescopic connecting rod assembly (4); the telescopic connecting rod component (4) is connected with a foot connecting piece (5) and a backrest connecting piece (6); the driving assembly (3) is used for driving the telescopic connecting rod assembly (4) to change the relative positions of the foot connecting piece (5) and the backrest connecting piece (6), and the driving assembly (3) is used for driving the lifting assembly (2) to lift;
the lifting assembly (2) comprises a lifting connecting plate (21), a first lifting connecting rod (22), a second lifting connecting rod (23) and a supporting seat (25), the supporting seat (25) is fixedly connected with the base frame (1), one ends of the first lifting connecting rod (22) and the second lifting connecting rod (23) are respectively and rotatably connected with the supporting seat (25), the other ends of the first lifting connecting rod (22) and the second lifting connecting rod (23) are respectively and rotatably connected with the lifting connecting plate (21), and the lifting connecting plate (21) is further respectively connected with the driving assembly (3) and the telescopic connecting rod assembly (4);
the telescopic connecting rod component (4) comprises a foot connecting rod component (41), a back connecting rod component (42) and a middle connecting rod component (43), one end of a first middle connecting rod (431) of the middle connecting rod component (43) is rotatably connected with the backrest connecting piece (6), the other end of the first middle connecting rod is rotatably connected with the foot connecting rod component (41),
the foot connecting rod assembly (41) comprises a first foot connecting rod (411), a second foot connecting rod (412), a third foot connecting rod (413) and a fourth foot connecting rod (414), one ends of the first foot connecting rod (411) and the second foot connecting rod (412) are rotatably connected with a foot connecting piece (5), the other end of the first foot connecting rod (411) is rotatably connected with one end of the third foot connecting rod (413), and the other end of the third foot connecting rod (413) is connected with the first middle connecting rod (431); the other end of the second foot connecting rod (412) is rotatably connected with one end of the fourth foot connecting rod (414), the other end of the fourth foot connecting rod (414) is rotatably connected with one end of a second middle connecting rod (432) of the middle connecting rod assembly (43), and the other end of the second middle connecting rod (432) is rotatably connected to the lifting connecting plate (21).
2. The seat frame with ascending and forward tilting functions according to claim 1, characterized in that the lifting and lowering connection plate (21) is of a unitary plate-like structure, the driving assembly (3) and the telescopic link assembly (4) being riveted to the lifting and lowering connection plate (21).
3. The seat frame with the ascending pre-tilt function according to claim 2, wherein the other ends of the first and second elevation links (22, 23) are respectively rotation-riveted with the elevation connection plate (21).
4. A seat frame with ascending and forward tilting functions according to claim 1, characterized in that the lifting assembly (2) and the telescopic link assembly (4) are provided in two sets and symmetrically arranged along the central plane of the base frame (1), the first lifting link (22) is located below the second lifting link, and a first stabilizing link (24) is provided between the two first lifting links (22).
5. A seat frame with an ascending and forward tilting function according to claim 4, characterized in that two said supporting seats (25) are arranged on the outer side of a longitudinal bottom frame (11) of said base frame (1), said first lifting link (22) is arranged on the outer side of said supporting seats (25), said longitudinal bottom frame (11) is used for limiting the lowest descending position of said first stabilizing link (24).
6. The seat frame with the ascending and forward tilting functions according to claim 4, wherein a second stabilizing link (35) is connected between the two ascending and descending connecting plates (21), and the upper end of the supporting seat (25) is used for limiting the lowest descending position of the second stabilizing link (35).
7. A seat frame with ascending front-tipping function according to any of claims 1 to 6, characterized in that the drive assembly (3) comprises a drive rod (31), a push rod connection (32), a lifting link (33) and a telescopic drive link assembly (34); be equipped with push rod connecting piece (32) in the middle of the actuating lever, push rod connecting piece (32) are used for being connected with the push rod of driving source, lift connection piece (33) is connected respectively at actuating lever (31) both ends, lift connection piece (33) with lift connecting plate (21) are connected, actuating lever (31) both ends still with telescopic link subassembly (4) are connected.
8. The seat frame with the ascending and forward tilting functions according to claim 7, characterized in that the driving rod (31) is provided with a driving rod rivet (311) at both ends, the driving rod rivet (311) is riveted with the ascending and descending connecting sheet (33), and the telescopic driving connecting rod assembly (34) is connected with the ascending and descending connecting sheet (33).
9. A seat frame with ascending forward-tipping function according to claim 7, characterized in that the drive end of the telescopic drive link assembly (34) is riveted to the telescopic link assembly (4).
10. A seat, characterized by comprising a backrest support, a foot support and a seat frame, said seat frame comprising a base frame (1), a lifting assembly (2), a drive assembly (3) and a telescopic link assembly (4);
the telescopic connecting rod component (4) is connected with a foot connecting piece (5) and a backrest connecting piece (6); the driving assembly (3) is used for driving the telescopic connecting rod assembly (4) to change the relative positions of the foot connecting piece (5) and the backrest connecting piece (6), and the driving assembly (3) is used for driving the lifting assembly (2) to lift; the backrest support part is connected with the backrest connecting piece (6), and the foot support part is connected with the foot connecting piece (5);
lifting unit (2) is including lift connecting plate (21), first lift connecting rod (22) second lift connecting rod (23) and supporting seat (25), supporting seat (25) with base frame (1) fixed connection, first lift connecting rod (22) with the one end of second lift connecting rod (23) respectively with supporting seat (25) rotate to be connected, first lift connecting rod (22) with the other end of second lift connecting rod (23) respectively with lift connecting plate (21) rotate to be connected, lift connecting plate (21) still respectively with drive assembly (3) with flexible link assembly (4) are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021599609.2U CN212591164U (en) | 2020-08-05 | 2020-08-05 | Seat frame and seat with rise function of leaning forward |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021599609.2U CN212591164U (en) | 2020-08-05 | 2020-08-05 | Seat frame and seat with rise function of leaning forward |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212591164U true CN212591164U (en) | 2021-02-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021599609.2U Active CN212591164U (en) | 2020-08-05 | 2020-08-05 | Seat frame and seat with rise function of leaning forward |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212591164U (en) |
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2020
- 2020-08-05 CN CN202021599609.2U patent/CN212591164U/en active Active
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Address after: 215200 west side of Tongjin Avenue, Wujiang Economic and Technological Development Zone, Suzhou City, Jiangsu Province Patentee after: Ruimai Technology Co.,Ltd. Address before: 215200 west side of Tongjin Avenue, Wujiang Economic Development Zone, Suzhou City, Jiangsu Province Patentee before: REMACRO MACHINERY & TECHNOLOGY (WUJIANG) Co.,Ltd. |