CN212591206U

CN212591206U - Seat frame of sofa stretching device

Info

Publication number: CN212591206U
Application number: CN202021181565.1U
Authority: CN
Inventors: 徐海峰
Original assignee: Jiangsu Shuyida Machinery Co ltd
Current assignee: Jiangsu Shuyida Machinery Co ltd
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-02-26
Anticipated expiration: 2030-06-23

Abstract

The utility model discloses a sofa stretching device's seat frame, including set casing, adjustment mechanism, supporting mechanism and buffer gear, adjustment mechanism sets up the inside at the set casing, supporting mechanism sets up the inside at the set casing, buffer gear sets up the bottom at the set casing. The utility model discloses a servo motor, the corotation threaded rod, the reversal threaded rod, the thread piece, the gyro wheel, fixed seat frame, the swash plate, the connecting plate, the fixed slot, the fly leaf, mutually supporting of telescopic link and supporting shoe, thereby can automize when making extension device adjust and adjust, greatly reduced the labour, and convenient operation, the steadiness of seat frame has been improved simultaneously, mutually support through backup pad and buffer spring, thereby played the effect of carrying out the shock attenuation buffering to extension device and seat frame, avoid because of rigidity and ground contact, cause extension device's damage, the practicality of extension device is greatly improved, bring very big facility for the user.

Description

Seat frame of sofa stretching device

Technical Field

The utility model relates to a sofa technical field specifically is a sofa stretching device's seat frame.

Background

Along with the more and more developed science and technology, the requirement of people on the quality of life is also higher and higher, and the convenient, comfortable and practical factor that is mainly considered when people select furniture articles becomes, therefore, the sofa becomes the essential furniture of daily life, and the use of extensible sofa in modern house is more and more extensive, and the promotion and the decline of extensible sofa must be realized with the help of the seat frame of liftable, like application number CN201820409620.4, the utility model relates to a seat frame of sofa extension device, including underframe, first splint, lifting unit, top frame, bedplate and second splint; the lifting assembly comprises a first sliding rod, a first rotating rod, a first connecting rod, a second connecting rod, a first pin shaft, a second rotating rod, a third connecting rod, a fourth connecting rod, a second pin shaft, a second sliding rod, a fourth rotating rod, an air cylinder, a first rotating seat, a second rotating seat, a screw and a knob; the utility model discloses simple structure, it is balanced to have improved bearing performance and atress, avoid producing when the sofa is stressed and rock, the simple operation is laborsaving, above-mentioned need adjust through manual when comparing case row regulation seat frame, waste time and energy, the labour has been increased, and when the seat frame receives pressure, because of not having the effect of shock attenuation buffering, thereby make the seat frame be the rigid contact through extension device and ground, long-time the use can lead to the phenomenon that the extension device appears damaging, greatly reduced extension device's life, bring very big inconvenience for the user.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sofa stretching device's seat frame to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a seat frame of a sofa stretching device comprises a fixed shell, an adjusting mechanism, a supporting mechanism and a buffering mechanism, wherein the adjusting mechanism is arranged inside the fixed shell, the supporting mechanism is arranged inside the fixed shell, and the buffering mechanism is arranged at the bottom of the fixed shell;

the adjusting mechanism comprises a servo motor, the servo motor is installed in a groove at the bottom of the left side of the inner wall of the fixed shell, a forward rotation threaded rod is installed at the right end of an output shaft of the servo motor, a reverse rotation threaded rod is installed at the right end of the forward rotation threaded rod, thread blocks are connected to the surface of the forward rotation threaded rod and the surface of the reverse rotation threaded rod in a threaded mode, and a roller is installed at the top of each thread block;

the supporting mechanism comprises a fixed seat frame, the fixed seat frame is arranged at the top of a fixed shell, an inclined plate matched with two rollers is arranged at the middle point of the bottom of the fixed seat frame, the bottom of the inclined plate penetrates through the fixed shell and extends into the fixed shell, connecting plates are arranged at four corners of the bottom of the fixed seat frame, a fixed groove is formed in the top of the fixed shell and corresponds to the connecting plate, the bottom of the connecting plate penetrates through the fixed groove and extends into the fixed shell, a movable plate is arranged at the bottom of the connecting plate, two telescopic rods are arranged at the bottom of the fixed seat frame and positioned on the left side and the right side of the inclined plate, the bottom of each telescopic rod penetrates through the fixed shell and extends into the fixed shell, a supporting block is arranged at the bottom of each telescopic rod, and one side;

buffer gear includes the backup pad, the backup pad sets up the below at the set casing, buffer spring is installed at the top of backup pad, buffer spring's top and the bottom fixed connection of set casing.

Preferably, one end of the roller, which is close to the inclined plate, is in rolling contact with the inclined plate.

Preferably, the movable plate is slidably coupled to an inner wall of the fixing groove.

Preferably, the bottom of the inner wall of the fixed shell is provided with a sliding chute, the inner wall of the sliding chute is connected with a sliding block in a sliding manner at a position corresponding to the thread block, and the top of the sliding block is fixedly connected with the bottom of the thread block.

Preferably, a rolling bearing is installed in the groove on the right side of the inner wall of the fixed shell and in the position corresponding to the reverse threaded rod, and the right end of the reverse threaded rod penetrates through the rolling bearing and extends to the inner wall of the reverse threaded rod and the inner wall of the reverse threaded rod is movably connected with the rolling bearing.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a servo motor, the corotation threaded rod, the reversal threaded rod, the thread piece, the gyro wheel, fixed seat frame, the swash plate, the connecting plate, the fixed slot, the fly leaf, mutually supporting of telescopic link and supporting shoe, thereby can automize when making extension device adjust and adjust, greatly reduced the labour, and convenient operation, the steadiness of seat frame has been improved simultaneously, mutually support through backup pad and buffer spring, thereby played the effect of carrying out the shock attenuation buffering to extension device and seat frame, avoid because of rigidity and ground contact, cause extension device's damage, the practicality of extension device is greatly improved, bring very big facility for the user.

2. The utility model discloses a setting up mutually supporting of spout and slider, steadiness when having improved the motion of threaded block greatly, through setting up antifriction bearing, steadiness when having improved two threaded rod motions greatly.

Drawings

FIG. 1 is a structural section view in elevation of the present invention;

FIG. 2 is an enlarged view of a portion of A-A of FIG. 1 according to the present invention;

fig. 3 is a schematic structural diagram of a left side view of the present invention.

In the figure: the device comprises a fixed shell 1, a regulating mechanism 2, a servo motor 21, a forward rotation threaded rod 22, a reverse rotation threaded rod 23, a threaded block 24, a roller 25, a support mechanism 3, a fixed seat frame 31, an inclined plate 32, a connecting plate 33, a fixed groove 34, a movable plate 35, a telescopic rod 36, a support block 37, a buffer mechanism 4, a support plate 41, a buffer spring 42, a sliding chute 5, a sliding block 6 and a rolling bearing 7.

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 work belong to the protection scope of the present invention.

Referring to fig. 1-3, a seat frame of a sofa stretching device includes a fixed shell 1, an adjusting mechanism 2, a supporting mechanism 3 and a buffering mechanism 4, wherein the adjusting mechanism 2 is disposed inside the fixed shell 1, the supporting mechanism 3 is disposed inside the fixed shell 1, and the buffering mechanism 4 is disposed at the bottom of the fixed shell 1.

The adjusting mechanism 2 comprises a servo motor 21, the servo motor 21 is arranged in a groove at the bottom of the left side of the inner wall of the fixed shell 1, the servo motor 21 is a forward and reverse rotating low-speed motor with a self-locking function, the servo motor 21 is electrically connected with an external controller, a forward rotating threaded rod 22 is fixedly connected at the right end of an output shaft of the servo motor 21, a reverse rotating threaded rod 23 is fixedly connected at the right end of the forward rotating threaded rod 22, a rolling bearing 7 is fixedly connected in the groove at the right side of the inner wall of the fixed shell 1 and corresponds to the reverse rotating threaded rod 23, the right end of the reverse rotating threaded rod 23 penetrates through the rolling bearing 7 and extends to the interior of the rolling bearing 7 to be movably connected with the inner wall of the rolling bearing 7, the stability of the two threaded rods during movement is greatly improved by arranging the rolling bearing 7, thread, on the inner wall of spout 5 and the position sliding connection who corresponds screw block 24 has slider 6, the top of slider 6 and the bottom fixed connection of screw block 24 through setting up mutually supporting of spout 5 and slider 6, have improved the steadiness when screw block 24 moves greatly, the top fixedly connected with gyro wheel 25 of screw block 24.

The supporting mechanism 3 comprises a fixed seat frame 31, the fixed seat frame 31 is arranged at the top of the fixed shell 1, an inclined plate 32 matched with the two rollers 25 is fixedly connected at the midpoint of the bottom of the fixed seat frame 31, the bottom of the inclined plate 32 penetrates through the fixed shell 1 and extends into the fixed shell, one end of each roller 25 close to the inclined plate 32 is in rolling contact with the inclined plate 32, connecting plates 33 are fixedly connected at four corners of the bottom of the fixed seat frame 31, fixing grooves 34 are formed in the top of the fixed shell 1 and correspond to the positions of the connecting plates 33, the bottom of each connecting plate 33 penetrates through the corresponding fixing grooves 34 and extends into the corresponding fixing groove, movable plates 35 are fixedly connected at the bottoms of the corresponding connecting plates 33, the movable plates 35 are slidably connected on the inner walls of the fixing grooves 34, the stability of the fixed seat frame 31 during movement is greatly improved by arranging the connecting plates 33, the fixing grooves 34 and the movable plates 35, the bottom of telescopic link 36 runs through set casing 1 and extends to its inside, the bottom fixedly connected with supporting shoe 37 of telescopic link 36, one side that supporting shoe 37 is close to set casing 1 inner wall and the inner wall fixed connection of set casing 1, through setting up telescopic link 36, steadiness when having improved fixed seat frame 31 motion greatly, through servo motor 21, corotation threaded rod 22, reversal threaded rod 23, thread block 24, gyro wheel 25, fixed seat frame 31, swash plate 32, connecting plate 33, fixed slot 34, fly leaf 35, the mutually supporting of telescopic link 36 and supporting shoe 37, thereby can automize when making the extension device adjust and adjust, the labour has greatly reduced, and convenient for operation, the steadiness of seat frame has been improved simultaneously.

Buffer gear 4 includes backup pad 41, backup pad 41 sets up the below at set casing 1, the top fixedly connected with buffer spring 42 of backup pad 41, buffer spring 42's top and the bottom fixed connection of set casing 1, through backup pad 41 and buffer spring 42 mutually support, thereby played the effect of carrying out the shock attenuation buffering to stretching device and seat frame, avoid because of rigidity and ground contact, cause stretching device's damage, stretching device's practicality has been improved greatly, bring very big facility for the user.

During the use, start servo motor 21, servo motor 21 drives corotation threaded rod 22 and reversal threaded rod 23 rotary motion through the output shaft, thereby make corotation threaded rod 22 and reversal threaded rod 23 drive two screw block 24 relative motion, screw block 24 drives slider 6 and moves in spout 5, screw block 24 drives gyro wheel 25 motion, thereby make two gyro wheel 25 relative motion, gyro wheel 25 extrudes swash plate 32 upward movement, swash plate 32 drives fixed seat frame 31 upward movement, the tensile telescopic link 36 upward movement of fixed seat frame 31, fixed seat frame 31 drives movable plate 35 upward movement through connecting plate 33, steadiness when having improved fixed seat frame 31 motion greatly, through setting up buffer spring 42, the shock attenuation buffering effect has been played.

In summary, the following steps: the seat frame of the sofa stretching device solves the problems in the background technology through the mutual matching of the servo motor 21, the forward rotation threaded rod 22, the reverse rotation threaded rod 23, the threaded block 24, the roller 25, the fixed seat frame 31, the inclined plate 32, the connecting plate 33, the fixed groove 34, the movable plate 35, the telescopic rod 36 and the supporting block 37 and through the mutual matching of the supporting plate 41 and the buffer spring 42.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a sofa stretching device's seat frame, includes stationary casing (1), adjustment mechanism (2), supporting mechanism (3) and buffer gear (4), its characterized in that: the adjusting mechanism (2) is arranged inside the fixed shell (1), the supporting mechanism (3) is arranged inside the fixed shell (1), and the buffer mechanism (4) is arranged at the bottom of the fixed shell (1);

the adjusting mechanism (2) comprises a servo motor (21), the servo motor (21) is installed in a groove at the bottom of the left side of the inner wall of the fixed shell (1), a forward rotation threaded rod (22) is installed at the right end of an output shaft of the servo motor (21), a reverse rotation threaded rod (23) is installed at the right end of the forward rotation threaded rod (22), thread blocks (24) are connected to the surface of the forward rotation threaded rod (22) and the surface of the reverse rotation threaded rod (23) in a threaded mode, and idler wheels (25) are installed at the tops of the thread blocks (24);

the supporting mechanism (3) comprises a fixed seat frame (31), the fixed seat frame (31) is arranged at the top of the fixed shell (1), an inclined plate (32) matched with the two rollers (25) is installed at the midpoint of the bottom of the fixed seat frame (31), the bottom of the inclined plate (32) penetrates through the fixed shell (1) and extends to the inside of the fixed shell, connecting plates (33) are installed at four corners of the bottom of the fixed seat frame (31), fixing grooves (34) are formed in the top of the fixed shell (1) and correspond to the positions of the connecting plates (33), the bottom of the connecting plates (33) penetrates through the fixing grooves (34) and extends to the inside of the fixed shell, movable plates (35) are installed at the bottom of the connecting plates (33), two telescopic rods (36) are installed at the bottom of the fixed seat frame (31) and on the left side and the right side of the inclined plate (32), and the bottom of the telescopic rods (36) penetrates through the fixed shell, a supporting block (37) is installed at the bottom end of the telescopic rod (36), and one side, close to the inner wall of the fixed shell (1), of the supporting block (37) is fixedly connected with the inner wall of the fixed shell (1);

buffer gear (4) include backup pad (41), backup pad (41) set up the below at set casing (1), buffer spring (42) are installed at the top of backup pad (41), the top of buffer spring (42) and the bottom fixed connection of set casing (1).

2. A seat frame for a sofa extension set in accordance with claim 1, wherein: one end of the roller (25) close to the inclined plate (32) is in rolling contact with the inclined plate (32).

3. A seat frame for a sofa extension set in accordance with claim 1, wherein: the movable plate (35) is slidably connected to the inner wall of the fixing groove (34).

4. A seat frame for a sofa extension set in accordance with claim 1, wherein: the bottom of set casing (1) inner wall has seted up spout (5), on the inner wall of spout (5) and correspond the position sliding connection of screw thread piece (24) have slider (6), the top of slider (6) and the bottom fixed connection of screw thread piece (24).

5. A seat frame for a sofa extension set in accordance with claim 1, wherein: and a rolling bearing (7) is installed in the groove on the right side of the inner wall of the fixed shell (1) and corresponds to the position of the reverse threaded rod (23), and the right end of the reverse threaded rod (23) penetrates through the rolling bearing (7) and extends to the inner wall of the reverse threaded rod and is movably connected with the rolling bearing (7).