CN218571814U - Seat frame adjusting mechanism and seat - Google Patents

Abstract

The application discloses seat frame adjustment mechanism and thing to sit on includes the mount, still includes: the seat frame comprises a first side frame and a second side frame, the first side frame and the second side frame are respectively and rotatably connected with the fixed frame through connecting rod assemblies, the end parts of the first side frame and the second side frame are hinged with push rods, and the hinged push rod ends of the connecting rod assemblies connected with the first side frame are provided with transmission parts; the first driving piece is fixed on the first side frame and provided with a driving part, and the driving part is meshed with the transmission part; the first driving piece is arranged to drive the seat frame to move relative to the fixing frame through a transmission part of the driving connecting rod assembly. The utility model provides a seat frame adjustment mechanism and thing to sit on can adjust the height and the angle of seat frame in order to adapt to different user state.

Description

Seat frame adjusting mechanism and seat

Technical Field

The application relates to the technical field of home furnishing, in particular to a seat frame adjusting mechanism and a seat.

Background

The sofa or the chair is one of essential seats in modern home life, the sofa has the main function of providing sitting and resting for people, and the common sofa can be placed in a living room, so that convenience is provided for leisure and entertainment of owners and guests. However, when the old or the person with the injured knee sits on the sofa and needs to get up, the knee is hard to exert force, and the old or the person with the injured knee is hard to stand up from the sofa.

Based on the above problems, there is a need to develop a new seat that is convenient for people with inconvenience in legs and feet.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the application provides a seat frame adjusting mechanism and a seat, which can adjust the height of a seat frame so as to solve the problem of difficulty in getting up of old people.

In a first aspect, the present application provides a seat frame adjusting mechanism, including a mount, further including: the seat frame comprises a first side frame and a second side frame, the first side frame and the second side frame are respectively connected with the fixed frame in a rotating mode through connecting rod assemblies, push rods are hinged to the end portions of the first side frame and the second side frame, and transmission portions are arranged at hinged push rod ends of the connecting rod assemblies connected with the first side frame; the first driving piece is fixed on the first side frame and provided with a driving part, and the driving part is meshed with the transmission part; the first driving piece is arranged to drive the seat frame to move relative to the fixing frame through a transmission part of the driving connecting rod assembly.

Through adopting above-mentioned technical scheme, the drive part of driving piece drive link assembly, and the drive part drives the seat frame and rotates around link assembly, and at the seat frame around link assembly rotation in-process, the distance between the relative mount of seat frame changes to this realization seat frame risees or reduces. Can be suitable for people with different heights, and is convenient for the old and other people with difficulty in rising.

In combination with the first aspect, in a further aspect, the driving portion is a gear, and the transmission portion is a toothed plate.

Through adopting above-mentioned technical scheme, the driving piece carries out power transmission through the gear pair with link assembly, and intensity is high, the transmission is reliable.

In combination with the first aspect, a further scheme is that a limiting post/sliding groove is arranged on the first side frame, a sliding groove/limiting post is arranged on the toothed plate, the limiting post is located in the sliding groove, and when the gear rotates, the limiting post slides in the sliding groove.

Through adopting above-mentioned technical scheme, spacing post slides in the spout, reduces the off normal of pinion rack in the rotation process, can carry on spacingly to spacing post through two tip of spout in addition to this inject the rotation range of the relative seat frame of link assembly.

In combination with the first aspect, in a further aspect, the toothed plate is provided with a first limiting portion and a second limiting portion, and when the gear moves to the first limiting portion or the second limiting portion, the first driving member stops working.

Through adopting above-mentioned technical scheme, when the gear rotated to first spacing portion, the gear can not continue to rotate, and the motor stalling stops work, and the seat frame is in first position state. When the gear rotates to the second limiting part, the gear cannot rotate continuously, the motor blocks rotation and stops working, and the seat frame is in a second position state. The limitation of two limit states of the seat frame is realized through the limitation of the first limit part and the second limit part.

In combination with the first aspect, in a further aspect, the first side frame and the fixed frame are connected through a first connecting rod and a second connecting rod to form a four-bar linkage mechanism, the second side frame and the fixed frame are connected through a first connecting rod and a second connecting rod to form a four-bar linkage mechanism, and when the first driving member works, the seat frame rotates relative to the first connecting rod and the second connecting rod.

By adopting the technical scheme, the first side frame and the second side frame on two sides of the seat frame are respectively connected with the fixed frame through the first connecting rods with the same size structure and the second connecting rods with the same size structure to form a four-bar mechanism, and the first driving piece can drive the seat frame to rotate relative to the fixed frame when working. When the lengths of the first connecting rod and the second connecting rod are the same, the first side frame and the second side frame respectively form a positive parallelogram mechanism with the fixed frame through the first connecting rod and the second connecting rod, and the seat frame is always parallel to the fixed frame in the whole rotating process.

In combination with the first aspect, in a further aspect, a distance between the first link and an articulated shaft of the seat frame and the fixed frame is greater than a distance between the second link and an articulated shaft of the seat frame and the fixed frame, so that the seat frame rotates relative to the fixed frame when the first driving member operates.

By adopting the technical scheme, in the movement process of the seat frame, the distance of the seat frame relative to the fixed frame is changed, and the angle of the seat frame relative to the fixed frame is also changed, so that the seat frame is inclined while being lifted or lowered, and different use requirements of users are met. For example, the comfortable sitting posture of the office sofa is that the seat cushion inclines forwards, the spine of the human body is in an upright state through the angle adjustment of the seat frame, and the phenomenon that the body inclines forwards and the spine is deformed when people sit for a long time in office is avoided.

In combination with the first aspect, a further scheme is that the device further comprises a second driving element and a sliding frame, wherein the fixed end of the second driving element is connected with the fixed frame, and the pushing end of the second driving element is connected with the push rod; the sliding frame is connected with the fixing frame in a sliding mode, and the connecting rod assembly is connected with the sliding frame in a rotating mode.

Through adopting above-mentioned technical scheme, the second driving piece can drive the seat frame and slide relatively the mount to this realization is in the position change of carriage slip direction. The combined drive of the first driving piece and the second driving piece can realize the movement of the seat frame in two directions, namely the sliding direction of the sliding frame and the direction vertical to the sliding direction of the sliding frame, so that more use requirements and scenes of users are met.

With reference to the first aspect, in a further aspect, the pushing end is rotatably connected to the push rod, and when the first driving member operates, the push rod rotates relative to the pushing end.

Through adopting above-mentioned technical scheme, at first driving piece during operation, the transmission portion of first connecting rod can drive the push rod and take place to rotate, and the promotion end rotates with the push rod to be connected and can reduce both and block dead risk in the motion process, reduces and influences the mechanism operation possibility. The push end is connected with the push rod rotation and neither influences the work operation of first driving piece, does not influence the work operation of second driving piece yet, can guarantee the collaborative work of first driving piece and second driving piece.

With reference to the first aspect, a further aspect further includes a back frame hinged to the fixed frame, and the back frame is hinged to the sliding frame through a third connecting rod.

Through adopting above-mentioned technical scheme, the second driving piece during operation promotes the seat to drive, link assembly and carriage and moves together, drives the back of the body frame through the third connecting rod in the carriage motion process and rotates to this synchronization regulation that realizes back of the body frame inclination.

In a second aspect, the present application provides a seating apparatus comprising a seat frame adjustment mechanism as described above.

Through adopting above-mentioned technical scheme, the travelling comfort of thing to sit on is better, can adjust the height of crouching of thing to sit on, is convenient for stand up from the thing to sit on, and user's experience feels better.

In summary, the present application has at least one of the following beneficial technical effects:

1. this application seat frame adjustment mechanism can adjust the distance between the relative mount of seat frame to this realizes that the seat frame risees or reduces, can adapt to not co-altitude crowd and use, also can be convenient for old person etc. stand up the crowd who has the trouble.

2. The seat frame adjusting mechanism is provided with a limiting structure, so that the rotating range and the limiting position of a seat frame are limited.

3. The seat frame adjusting mechanism can realize that the seat frame inclines when the seat frame is lifted or lowered, so that different use requirements of users are met.

4. The utility model provides a seat frame adjustment mechanism realizes the synchronous adjustment of the inclination of back when adjusting the height and the angle of seat frame, and it is convenient to adjust, can satisfy the user demand of the different gestures of user.

5. This application thing to sit on, the travelling comfort is better, and seatpad height and angle can conveniently be adjusted, can satisfy user's different scene demands.

Drawings

FIG. 1 is a schematic perspective view of a seat frame adjustment mechanism according to the present application;

FIG. 2 is a schematic view of the right side of the seat frame adjustment mechanism of the present application;

FIG. 3 is a schematic view of the left side of the seat frame adjustment mechanism of the present application;

FIG. 4 is a schematic view of the seat spring of the seat frame adjustment mechanism of the present application, shown with the seat spring removed;

fig. 5 is an enlarged schematic view at a of fig. 4.

Reference numerals:

1. a seat frame; 11. a first side frame; 111. a limiting column; 12. a second side frame; 13. a push rod; 2. a carriage; 3. a connecting rod assembly; 31. a first link; 311. a toothed plate; 3111. a chute; 3112. a first limiting part; 3113. a second limiting part; 32. a second link; 4. a second driving member; 41. a fixed end; 42. a pushing end; 5. a fixed mount; 6. a back frame; 7. a third link; 8. a seat spring; 9. a first driving member; 91. a gear.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description of the present application, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Features in the embodiments described below may be combined with each other without conflict.

The first embodiment is as follows:

referring to fig. 1, a structure of a seat frame adjusting mechanism is disclosed. The adjusting mechanism comprises a fixed frame 5 and a seat frame 1, the seat frame 1 comprises a first side frame 11 and a second side frame 12, the first side frame 11 and the second side frame 12 are respectively connected with a sliding frame 2 in a rotating mode through a connecting rod assembly 3, the sliding frame 2 is connected with the fixed frame 5 in a sliding mode, and push rods 13 are hinged to the rear end portions of the first side frame 11 and the second side frame 12. The first driving member 9 is fixed to the first side frame 11, the second driving member 4 is connected between the fixing frame 5 and the seat frame 1, a fixed end 41 of the second driving member 4 is hinged to the fixing frame 5, a pushing end 42 of the second driving member 4 is rotatably connected to the push rod 13, the second driving member 4 of the embodiment is an electric push rod 13, and other mechanisms such as a hydraulic push rod 13 can also be adopted.

Still articulated on the mount 5 have a back of body frame 6, and back of body frame 6 is articulated with carriage 2 through third connecting rod 7, and carriage 2 motion in-process drives back of body frame 6 through third connecting rod 7 and rotates to this realizes the synchronous regulation of 6 inclination of back of body frame. The linkage structure of the back frame 6 and the seat frame 1 has a plurality of applications in advance, and the patent of the application number 2022110110981 also has relevant disclosure, belongs to a known structure, and is not described again in the application.

Referring to fig. 2, the second side frame 12 and the sliding frame 2 are connected to form a four-bar linkage through a first link 31 and a second link 32, the second side frame 12 can rotate relative to the first link 31 and the second link 32, and the sliding frame 2 is slidably connected to the fixed frame 5. A seat spring 8 is also fixed on the seat frame 1, and the seat spring 8 is arched away from the seat frame 1 and is used for supporting the weight of a passenger.

Referring to fig. 3, the first side frame 11 and the sliding frame 2 are connected to form a four-bar linkage via a first link 31 and a second link 32, the first side frame 11 can rotate relative to the first link 31 and the second link 32, and the sliding frame 2 is slidably connected to the fixed frame 5. The first side frame 11 is also fixedly connected with a first driving piece 9, and the first driving piece 9 is used for driving the seat frame 1 to move relative to the fixed frame 5.

Referring to fig. 2 and 3, when the lengths of the first connecting rod 31 and the second connecting rod 32 are the same, the first side frame 11 and the second side frame 12 respectively form a positive parallelogram mechanism with the fixed frame 5 through the first connecting rod 31 and the second connecting rod 32, and the seat frame 1 is always parallel to the fixed frame 5 in the whole rotation process. In this embodiment, the first link 31 is longer than the second link 32, and during the movement of the seat frame 1 driven by the first driving member 9, the distance of the seat frame 1 relative to the fixed frame 5 changes, and the angle of the seat frame 1 relative to the fixed frame 5 also changes, so that the seat frame 1 can be tilted while being lifted or lowered.

Referring to fig. 4 and 5, a toothed plate 311 is fixedly connected to an end of the first link 31, and the toothed plate 311 and the first link 31 may be formed by integral press, or may be fixed to each other by welding or bolts. The toothed plate 311 is provided with a sliding groove 3111, the first side frame 11 is fixed with a limiting column 111, and the limiting column 111 slides in the sliding groove 3111 during the rotation of the first connecting rod 31. The output end fixedly connected with gear 91 of first driving piece 9, gear 91 and pinion rack 311 mesh, and the upper and lower both ends of pinion rack 311 are equipped with first spacing portion 3112 and the spacing portion 3113 of second, and first spacing portion 3112 and the spacing portion 3113 of second are used for injecing two upper and lower extreme positions of the relative rack motion of gear 91.

The working process and principle of the embodiment are as follows:

referring to fig. 1-5, in the initial position of fig. 1, when the position of the seat frame 1 needs to be adjusted, the first driving member 9 works to drive the gear 91 to rotate, the gear 91 pushes the push rod 13 to move upward through the meshed toothed plate 311, and the push rod 13 drives the first side frame 11 and the second side frame 12 to move synchronously to realize the ascending and the forward tilting of the seat frame 1. When the seat frame 1 needs to be restored to the initial position, the first driving part 9 rotates reversely, the gear 91 pushes the push rod 13 to move downwards through the meshed toothed plate 311, and the push rod 13 drives the first side frame 11 and the second side frame 12 to move synchronously, so that the seat frame 1 returns to the initial position.

When the seat frame 1 needs to be adjusted to move forwards, the second driving part 4 works, the pushing end 42 extends forwards to push the pushing rod 13 to move forwards, the pushing rod 13 drives the first side frame 11 and the second side frame 12 to move forwards, the first side frame 11 and the second side frame 12 synchronously drive the first connecting rod 31 and the second connecting rod 32 to drive the sliding frame 2 to slide forwards along the fixed frame 5, and therefore the seat frame 1 can move forwards. When the seat frame 1 needs to be adjusted to move backwards, the second driving part 4 works, the pushing end 42 retracts backwards and pulls the push rod 13 to move backwards, the push rod 13 drives the first side frame 11 and the second side frame 12 to move backwards, the first side frame 11 and the second side frame 12 synchronously drive the first connecting rod 31 and the second connecting rod 32 to drive the sliding frame 2 to slide backwards along the fixed frame 5, and therefore the seat frame 1 is moved backwards.

When the front and back movement of the seat frame needs to be adjusted and the height and angle of the seat frame 1 are changed, the first driving piece 9 and the second driving piece 4 can be controlled to work to required positions respectively.

Example two:

the embodiment discloses a piece of seating furniture, which comprises the seat frame adjusting mechanism in the first embodiment. The seat in the embodiment can realize the adjustment of front and back, height and angle by driving the seat through the first driving piece 9 and the second driving piece 4. Referring to fig. 1, when the elderly need to get up from the sitting device, the seat frame 1 is lifted and inclined forward, so that the elderly do not need to stand up with effort, and the experience is better. If the front and back positions, the height or the inclination angle of the seat frame 1 need to be adjusted during office work, the seat frame 1 can be driven respectively or synchronously by the first driving piece 9 and the second driving piece 4, and the adjustment is more convenient.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that the present invention can be modified, replaced and modified in many ways without departing from the spirit and scope of the present invention.

Claims (10)

1. A seat frame adjusting mechanism comprises a fixed frame (5), and is characterized by further comprising:

the seat frame (1) comprises a first side frame (11) and a second side frame (12), the first side frame (11) and the second side frame (12) are respectively in rotating connection with the fixed frame (5) through a connecting rod assembly (3), the end parts of the first side frame (11) and the second side frame (12) are hinged with push rods (13), and a transmission part is arranged at the end part of the hinged push rod (13) of the connecting rod assembly (3) connected with the first side frame (11);

the first driving piece (9), the first driving piece (9) is fixed on the first side frame (11), the first driving piece (9) is provided with a driving part, and the driving part is meshed with the transmission part;

the first driving piece (9) is arranged to drive the seat frame (1) to move relative to the fixed frame (5) through a transmission part of the driving connecting rod assembly (3).

2. A seat frame adjustment mechanism according to claim 1, wherein the drive part is a gear (91) and the transmission part is a toothed plate (311).

3. A seat frame adjusting mechanism according to claim 2, wherein the first side frame (11) is provided with a limiting post (111)/a sliding slot (3111), the toothed plate (311) is provided with a sliding slot (3111)/a limiting post (111), the limiting post (111) is located in the sliding slot (3111), and when the gear (91) rotates, the limiting post (111) slides in the sliding slot (3111).

4. A seat frame adjustment mechanism according to claim 2, characterized in that the toothed plate (311) is provided with a first stopper portion (3112) and a second stopper portion (3113), the first drive member (9) being deactivated when the gear wheel (91) is moved to the first stopper portion (3112) or the second stopper portion (3113).

5. A seat frame adjustment mechanism according to claim 1, wherein the first side frame (11) is connected to the fixed frame (5) by a first link (31) and a second link (32) to form a four-bar linkage, the second side frame (12) is connected to the fixed frame (5) by a first link (31) and a second link (32) to form a four-bar linkage, and the seat frame (1) is rotatable relative to the first link (31) and the second link (32) when the first drive member (9) is in operation.

6. A seat frame adjustment mechanism according to claim 5, characterized in that the first link (31) is spaced further from the joint axis of the seat frame (1) and the holder (5) than the second link (32) is spaced further from the joint axis of the seat frame (1) and the holder (5) to allow the seat frame (1) to rotate relative to the holder (5) when the first drive member (9) is in operation.

7. A seat frame adjustment mechanism according to claim 1, further comprising a second drive member (4) and a sliding carriage (2), a fixed end (41) of the second drive member (4) being connected to the fixed frame (5), a pushing end (42) of the second drive member (4) being connected to the push rod (13); carriage (2) with mount (5) sliding connection, link assembly (3) rotate connect in carriage (2).

8. A mounting adjustment mechanism according to claim 7, characterized in that the pushing end (42) is in rotational connection with the push rod (13), the push rod (13) rotating relative to the pushing end (42) when the first drive member (9) is operated.

9. A seat frame adjustment mechanism according to claim 7, further comprising a back frame (6) hinged to the fixed frame (5), the back frame (6) being hinged to the sliding frame (2) by a third link (7).

10. Seating furniture comprising a seat frame adjustment mechanism according to any of claims 1 to 9.

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