CN211092882U - Sofa waist-supporting device - Google Patents
Sofa waist-supporting device Download PDFInfo
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- CN211092882U CN211092882U CN201922043639.9U CN201922043639U CN211092882U CN 211092882 U CN211092882 U CN 211092882U CN 201922043639 U CN201922043639 U CN 201922043639U CN 211092882 U CN211092882 U CN 211092882U
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- connecting rod
- waist
- frame
- hinge point
- seat frame
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Abstract
The utility model relates to a sofa waist-supporting device, which comprises a seat frame and a bottom frame which are arranged up and down, wherein a first front connecting rod and a first rear connecting rod are hinged between the seat frame and the bottom frame, and a first four-connecting-rod structure is formed among the seat frame, the first front connecting rod, the first rear connecting rod and the bottom frame; the rear portion of chassis articulates there is a waist frame, top waist frame includes connecting rod and the second back connecting rod before the second that is connected with the chassis is articulated, articulates between the upper portion of the connecting rod before the second and the upper portion of the connecting rod behind the second to have a waist connecting piece, and chassis, the articulated transfer line that is connected with between waist frame and the first back connecting rod of connecting rod, second back connecting rod, top waist connecting piece form the four-bar linkage of second between waist frame, the second, and top waist frame follows the motion of seat frame and realizes the fore-and-aft swing under the drive of transfer line. Compared with the prior art, the utility model discloses when the human body takes the sofa, can realize through top waist device that the sofa waist leans on the support to user's waist, the travelling comfort is better, very convenient.
Description
Technical Field
The utility model relates to the technical field of furniture, in particular to sofa top waist device.
Background
When a person sits down, the waist of the person sitting backwards is generally required to be close to the backrest, and the waist of the person sitting forwards is close to the seat, so that the waist of the person cannot be supported; generally, people support the waist by putting a back cushion in front of the seat back, which is not convenient enough and troublesome to carry, although it can play a certain role.
In order to solve the technical problem, the utility model provides a sofa top waist device realizes when the human body takes the sofa, can realize through top waist device that the sofa waist leans on the support to user's waist, and the travelling comfort is better, and is very convenient.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes exist not enough among the above-mentioned prior art, provided a sofa top waist device, realized when the human body takes the sofa, can realize through top waist device that the sofa waist leans on the support to user's waist, the travelling comfort is better, very convenient.
The technical scheme of the utility model is realized like this:
a sofa waist-supporting device comprises a seat frame and an underframe which are arranged up and down, wherein a first front connecting rod and a first rear connecting rod are hinged between the seat frame and the underframe, a first four-connecting-rod structure is formed between the seat frame, the first front connecting rod, the first rear connecting rod and the underframe, the seat frame can move relative to the underframe under the supporting and guiding effects of the first front connecting rod and the first rear connecting rod and can perform state conversion between a no-load position and a sitting position, the seat frame is upward far away from the underframe and a larger elevation angle is formed between the first front connecting rod, the first rear connecting rod and the underframe at the no-load position, and the seat frame is downward near the underframe and a smaller elevation angle is formed between the first front connecting rod, the first rear connecting rod and the underframe at the sitting position; the rear portion of chassis articulates there is a waist frame, top waist frame includes connecting rod and the second back connecting rod of being connected with the chassis is articulated, and it has a waist connecting piece to articulate between the upper portion of connecting rod and the upper portion of second back connecting rod before the second, form the four connecting rod structure of second between chassis, the preceding connecting rod of second, second back connecting rod, the top waist connecting piece, it is articulated to be connected with the transfer line between waist frame and the first back connecting rod to push up, and the waist frame is followed the motion of seat frame and is realized the seesaw under the drive of transfer line.
The utility model discloses in, when the user took on the seat frame, first four-bar linkage can receive the holding down force and incline forward, and first four-bar linkage has leaned forward and has driven transfer line pulling second four-bar linkage and has leaned forward, and the waist frame that promotes inclines forward promptly, has realized the effect of top waist, effectively supports the waist, and the travelling comfort is good, and the operation is convenient. Specifically, the transmission rod pulls the corresponding deformation of the second four-bar linkage structure through the deformation of the first four-bar linkage structure, so that the user can synchronously support the waist of the user when riding the sofa.
Preferably, two ends of the first front connecting rod are respectively hinged with the front part of the seat frame and the front part of the underframe, and two ends of the first rear connecting rod are respectively hinged with the rear part of the seat frame and the rear part of the underframe.
Preferably, the front end of the first front connecting rod is hinged with the front part of the seat frame to form a first hinge point, the rear end of the first front connecting rod is hinged with the front part of the underframe to form a second hinge point, the front end of the first rear connecting rod is hinged with the rear part of the seat frame to form a third hinge point, and the rear end of the first rear connecting rod is hinged with the rear part of the underframe to form a fourth hinge point.
Preferably, the front end of the transmission rod is hinged to the rear part of the first rear connecting rod to form a fifth hinge point, the rear end of the transmission rod is hinged to the lower part of the second front connecting rod to form a sixth hinge point, and the fifth hinge point is located above the fourth hinge point.
The fifth hinge point is located above the fourth hinge point, so that the transmission rod can pull the corresponding deformation of the second four-bar linkage structure through the deformation of the first four-bar linkage structure, and the user can synchronously support the waist of the user when riding the sofa.
Preferably, the lower end of the second front connecting rod and the rear part of the seat frame form a seventh hinge point, the upper end of the second front connecting rod and the top waist connecting piece form an eighth hinge point, the lower end of the second rear connecting rod and the rear part of the seat frame form a ninth hinge point, and the upper end of the second rear connecting rod and the top waist connecting piece form a tenth hinge point; wherein the seventh hinge point is located the ninth hinge point in front and the eighth hinge point is located the tenth hinge point in front.
Preferably, the first four-bar linkage mechanism comprises two groups which are arranged in bilateral symmetry, and the second four-bar linkage mechanism comprises two groups which are arranged in bilateral symmetry.
The stability of the waist supporting device during operation is enhanced, the waist supporting device is not easy to deviate, the firmness is good, and the service life is long.
Preferably, the two transmission rods are symmetrically arranged, and a connecting rod is connected between the two transmission rods.
The stability of the waist supporting device during operation is enhanced, the waist supporting device is not easy to deviate, the firmness is good, and the service life is long.
Preferably, the seat further comprises an elastic return device for assisting the seat frame to move from the sitting position to the idle position.
Preferably, the elastic reset device is a pressure spring, one end of the pressure spring is connected to the bottom frame, and the other end of the pressure spring is connected to the seat frame.
When the seat frame is not pressed down, the seat frame, the waist-pushing frame and the transmission rod are reset under the action of the pressure spring.
Preferably, the lower end surface of the seat frame may abut against the upper end surface of the base frame in the seating position.
Limiting the maximum deformation space of the first four-bar linkage structure and the second four-bar linkage structure, and when the weight of a user is enough to enable the lower end face of the seat frame to be abutted against the upper end face of the bottom frame, enabling the seat frame to reach the lowest position and enabling the waist-supporting frame to reach the most front position; the stability of the whole waist supporting device is ensured by the arrangement.
Adopted above-mentioned technical scheme the beneficial effects of the utility model are that:
the utility model provides a sofa top waist device realizes when the human body takes the sofa, can realize through top waist device that the sofa waist leans on the support to user's waist, and the travelling comfort is better, very convenient. The utility model discloses in, when the user took to sit on the frame, first four-bar linkage can receive the holding down force and incline forward, and first four-bar linkage has leaned forward and has driven transfer line pulling second four-bar linkage and has leaned forward, and the waist frame that promotes inclines forward promptly, has realized the effect of top waist, and the travelling comfort is good, and the operation is convenient. Specifically, the transmission rod pulls the corresponding deformation of the second four-bar linkage structure through the deformation of the first four-bar linkage structure, so that the user can synchronously support the waist of the user when riding the sofa.
Drawings
FIG. 1 is a schematic diagram of the overall explosive structure of a waist-pushing device according to an embodiment;
FIG. 2 is a schematic view of the overall structure of the waist-supporting device of the embodiment in an initial state (no load);
FIG. 3 is a schematic overall side view of the waist-raising apparatus of the embodiment in its initial state (unloaded);
FIG. 4 is a schematic view of the overall structure of the waist-supporting device in the middle state (the seat frame is subjected to a certain force);
FIG. 5 is a schematic diagram of an overall side view of the waist-supporting device according to the embodiment in a neutral state (the seat frame is subjected to a certain force);
FIG. 6 is a schematic view of the entire structure of the end state of the waist-supporting device according to the embodiment (the seat frame is subjected to a large force, and the seat frame and the waist-supporting frame are deformed maximally);
FIG. 7 is a schematic view of the entire side view of the end state of the waist-supporting device according to the embodiment (the seat frame is subjected to a large force, and the seat frame and the waist-supporting frame are deformed maximally);
reference numerals:
Detailed Description
The specific implementation manner of the utility model is as follows:
example (b):
a sofa waist-supporting device, as shown in figures 1-7, comprises a seat frame 100 and a bottom frame 200 which are arranged up and down, a first front link 300 and a first rear link 400 are hinged between the seat frame 100 and the base frame 200, a first four-bar linkage structure (the first four-bar linkage structure comprises two groups which are arranged in bilateral symmetry) is formed among the seat frame 100, the first front connecting bar 300, the first rear connecting bar 400 and the base frame 200, the seat frame 100 can move relative to the base frame 200 under the supporting and guiding action of the first front connecting bar 300 and the first rear connecting bar 400 and can be switched between an idle position and a sitting position, in the unloaded position, the seat frame 100 is spaced upward away from the base frame 200 and the first front link 300, the first rear link 400 and the base frame 200 have a larger elevation angle therebetween, in the seating position, the seat frame 100 is downwardly close to the base frame 200 with a smaller elevation angle between the first front link 300, the first rear link 400 and the base frame 200; the rear part of the underframe 200 is hinged with a top waist frame 500, the top waist frame 500 comprises a second front connecting rod 600 and a second rear connecting rod 700 which are hinged with the underframe 200, a top waist connecting piece 800 is hinged between the upper part of the second front connecting rod 600 and the upper part of the second rear connecting rod 700, a second four-bar linkage structure is formed among the underframe 200, the second front connecting rod 600, the second rear connecting rod 700 and the top waist connecting piece 800 (the second four-bar linkage structure comprises two groups which are arranged symmetrically left and right, in order to enhance the firmness and stability of the top waist frame 500, the upper end and the lower end of the symmetrical second front connecting rod 600 are respectively connected with a second front upper rod and a second front lower rod, namely a rectangular shape is formed among the symmetrical second front connecting rod 600, the second front upper rod and the second front lower rod, and the upper end and the lower end of the symmetrical second rear connecting rod 700 are respectively connected with a second rear upper rod and a second rear lower rod, namely a rectangular shape is formed among the symmetrical second rear connecting rod 700, the second rear upper rod and the second rear lower rod), the top waist frame 500 is hinged to the first rear connecting rod 400 through a transmission rod 900 (the transmission rods 900 are symmetrically arranged, and a connecting rod is connected between the transmission rods 900), and the top waist frame 500 is driven by the transmission rod 900 to swing back and forth along with the movement of the seat frame 100.
Specifically, two ends of the first front link 300 are hinged to the front portion of the seat frame 100 and the front portion of the underframe 200, respectively, and two ends of the first rear link 400 are hinged to the rear portion of the seat frame 100 and the rear portion of the underframe 200, respectively; specifically, the front end of the first front link 300 is hinged to the front portion of the seat frame 100 to form a first hinge point a, the rear end of the first front link 300 is hinged to the front portion of the base frame 200 to form a second hinge point B, the front end of the first rear link 400 is hinged to the rear portion of the seat frame 100 to form a third hinge point C, and the rear end of the first rear link 400 is hinged to the rear portion of the base frame 200 to form a fourth hinge point D.
The front end of the transmission rod 900 is hinged to the rear portion of the first rear connecting rod 400 to form a fifth hinge point E, the rear end of the transmission rod 900 is hinged to the lower portion of the second front connecting rod 600 to form a sixth hinge point F, and the fifth hinge point E is located above the fourth hinge point D.
A seventh hinge point G is formed between the lower end of the second front connecting rod 600 and the rear portion of the seat frame 100, an eighth hinge point H is formed between the upper end of the second front connecting rod 600 and the top waist connecting piece 800, a ninth hinge point I is formed between the lower end of the second rear connecting rod 700 and the rear portion of the seat frame 100, and a tenth hinge point J is formed between the upper end of the second rear connecting rod 700 and the top waist connecting piece 800; wherein the seventh hinge point G is located in front of the ninth hinge point I, and the eighth hinge point H is located in front of the tenth hinge point J.
And further comprises an elastic return means for assisting the seat frame 100 to move from the seating position to the unloaded position; the elastic reset device is a pressure spring 1000, one end of the pressure spring is connected to the bottom frame 200, the other end of the pressure spring is connected to the seat frame 100, and the pressure springs may include several side-by-side pressure springs.
In order to ensure the stability of the user in the seat, the lower end surface of the seat frame 100 may abut against the upper end surface of the base frame 200, and further, a notch 110 is formed on the lower end surface of the seat frame 100, and a protruding tooth 210 matching with the notch 110 is formed on the upper end surface of the base frame 200.
A seat plate (not shown) is disposed above the seat frame 100, and a top waist plate 2000 and a waist rest 2100 are disposed in this order in front of the top waist frame 500.
The above description in this specification is merely illustrative of the present invention. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (10)
1. A sofa waist-supporting device is characterized in that: the seat frame can move relative to the underframe under the supporting and guiding action of the first front connecting rod and the first rear connecting rod and can perform state conversion between a no-load position and a sitting position, the seat frame is upward far away from the underframe and a larger elevation angle is formed between the first front connecting rod, the first rear connecting rod and the underframe, and the seat frame is downward close to the underframe and a smaller elevation angle is formed between the first front connecting rod, the first rear connecting rod and the underframe at the sitting position; the rear portion of chassis articulates there is a waist frame, top waist frame includes connecting rod and the second back connecting rod of being connected with the chassis is articulated, and it has a waist connecting piece to articulate between the upper portion of connecting rod and the upper portion of second back connecting rod before the second, form the four connecting rod structure of second between chassis, the preceding connecting rod of second, second back connecting rod, the top waist connecting piece, it is articulated to be connected with the transfer line between waist frame and the first back connecting rod to push up, and the waist frame is followed the motion of seat frame and is realized the seesaw under the drive of transfer line.
2. The sofa bow assembly of claim 1, wherein: the two ends of the first front connecting rod are hinged with the front part of the seat frame and the front part of the underframe respectively, and the two ends of the first rear connecting rod are hinged with the rear part of the seat frame and the rear part of the underframe respectively.
3. The sofa bow assembly of claim 1 or 2, wherein: the front end of the first front connecting rod is hinged with the front portion of the seat frame to form a first hinge point, the rear end of the first front connecting rod is hinged with the front portion of the bottom frame to form a second hinge point, the front end of the first rear connecting rod is hinged with the rear portion of the seat frame to form a third hinge point, and the rear end of the first rear connecting rod is hinged with the rear portion of the bottom frame to form a fourth hinge point.
4. The sofa bow assembly of claim 3, wherein: the front end of the transmission rod is hinged with the rear part of the first rear connecting rod to form a fifth hinge point, the rear end of the transmission rod is hinged with the lower part of the second front connecting rod to form a sixth hinge point, and the fifth hinge point is located above the fourth hinge point.
5. The sofa bow assembly of claim 1, wherein: the lower end of the second front connecting rod and the rear part of the seat frame form a seventh hinge point, the upper end of the second front connecting rod and the top waist connecting piece form an eighth hinge point, the lower end of the second rear connecting rod and the rear part of the seat frame form a ninth hinge point, and the upper end of the second rear connecting rod and the top waist connecting piece form a tenth hinge point; wherein the seventh hinge point is located the ninth hinge point in front and the eighth hinge point is located the tenth hinge point in front.
6. The sofa bow assembly of claim 1, wherein: the first four-bar linkage mechanism comprises two groups which are arranged in bilateral symmetry, and the second four-bar linkage mechanism comprises two groups which are arranged in bilateral symmetry.
7. The sofa bow assembly of claim 1, wherein: the transfer line is connected with the connecting rod including two that the symmetry set up between the transfer line.
8. The sofa bow assembly of claim 1, wherein: also comprises an elastic reset device used for assisting the seat frame to move from the sitting position to the idle position.
9. The sofa bow assembly of claim 8, wherein: the elastic reset device is a pressure spring, one end of the pressure spring is connected to the bottom frame, and the other end of the pressure spring is connected to the seat frame.
10. The sofa bow assembly of claim 1, wherein: when the seat is in the sitting position, the lower end surface of the seat frame can be abutted against the upper end surface of the bottom frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922043639.9U CN211092882U (en) | 2019-11-21 | 2019-11-21 | Sofa waist-supporting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922043639.9U CN211092882U (en) | 2019-11-21 | 2019-11-21 | Sofa waist-supporting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211092882U true CN211092882U (en) | 2020-07-28 |
Family
ID=71712879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922043639.9U Active CN211092882U (en) | 2019-11-21 | 2019-11-21 | Sofa waist-supporting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211092882U (en) |
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2019
- 2019-11-21 CN CN201922043639.9U patent/CN211092882U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20230925 Address after: 313000 east area, 1st floor, building 2, No. 8, Tangpu Avenue, Dipu street, Anji County, Huzhou City, Zhejiang Province (workshop of Zhejiang Anji Zhishang Furniture Co., Ltd.) Patentee after: Anji Shanye Home Co.,Ltd. Address before: Room 302, West 3rd Floor, Zhejiang University Xixi Campus, Tianmushan Road, Xihu District, Hangzhou City, Zhejiang Province, 310027 Patentee before: HANGZHOU QIXIONG TECHNOLOGY Co.,Ltd. |