CN216932449U

CN216932449U - Simple seat stretching device

Info

Publication number: CN216932449U
Application number: CN202123069405.5U
Authority: CN
Inventors: 不公告发明人
Original assignee: Dongguan Keken Mechanical And Electrical Technology Co ltd
Current assignee: Dongguan Keken Mechanical And Electrical Technology Co ltd; Jiangsu Zhengchuan Smart Home Manufacturing Co ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-07-12
Anticipated expiration: 2031-12-08

Abstract

The utility model discloses a simple seat stretching device which comprises a bottom frame and stretching components which are bilaterally symmetrical, wherein a backrest mounting plate of each stretching component is pivoted with a support, the rear end of a mounting side plate is pivoted with the backrest mounting plate, the position, close to the front, in the middle of the mounting side plate is pivoted with the support through a swinging plate, the front end of the mounting side plate is pivoted with a first connecting rod, the rear side of the front end of the mounting side plate is pivoted with a second connecting rod, the rear end of the mounting side plate is pivoted with a third connecting rod, the third connecting rod is pivoted with the first connecting rod, the first connecting rod is pivoted with a fourth connecting rod, the third connecting rod is pivoted with one vertex angle of a triangular plate connecting rod, the fourth connecting rod is pivoted with the other vertex angle of the triangular plate connecting rod, the triangular plate connecting rod is provided with a first mounting part for mounting a first pedal, the simple seat stretching device also comprises a linear reciprocating driver, one end of which is pivoted with the bottom frame or the support, the other end of the simple seat stretching device is pivoted with a push rod, and the two ends of the push rod are fixedly connected with the second connecting rods on the left side and the right side. The simple seat stretching device is simple in structure, light in weight and low in cost.

Description

Simple seat stretching device

Technical Field

The utility model relates to the field of home manufacturing, in particular to a simple seat stretching device.

Background

The prior application No. CN201811188727.1 discloses an electromechanical stretching device with a rear stopper, which has a complicated structure, a heavy weight, a high cost, and a small amount of transportation for a single container.

Disclosure of Invention

The utility model aims to provide a simple seat stretching device with simple structure and lower cost aiming at the defects in the prior art.

In order to achieve the purpose, the simple seat stretching device adopts the technical scheme that:

a simple seat stretching device comprises a bottom frame and stretching components which are arranged on the upper side of the bottom frame in bilateral symmetry, wherein each stretching component comprises a support connected with the bottom frame, a backrest mounting plate at the rear part is pivoted with the support, the rear end of a mounting side plate for mounting a seat part of a seat is pivoted with the backrest mounting plate, a first limit for limiting the front-back swinging angle of the backrest mounting plate is arranged between the mounting side plate and the backrest mounting plate, the front position in the middle of the mounting side plate near the front is pivoted with the support through a pivoted swinging plate, the front end of the mounting side plate is pivoted with the rear end of a first connecting rod, the front end of the mounting side plate is pivoted with the rear end of a second connecting rod, the front end of the second connecting rod is pivoted with the rear end of a third connecting rod, the rear end of the third connecting rod is pivoted with the front end of a first connecting rod, the front end of the first connecting rod is pivoted with the rear end of a fourth connecting rod, and the front end of the third connecting rod is pivoted with one apex angle of a triangle connecting rod, the front end of the fourth connecting rod is pivoted with the other vertex angle of the triangular plate connecting rod, the triangular plate connecting rod is provided with a first installation part for installing a first pedal, the triangular plate connecting rod further comprises a linear reciprocating driver for driving the extension assembly to sit, TV and lie, one end of the linear reciprocating driver is pivoted with the bottom frame or the support, the other end of the linear reciprocating driver is pivoted with the push rod, and the two ends of the push rod are fixedly connected with the second connecting rods on the left side and the right side. The unilateral extension assembly only has one backrest mounting plate and one mounting side plate, and the extension device of the foot part is a scissor type folding mechanism formed by a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod and a triangular plate connecting rod, so that the structure is simpler, the weight of a single seat is lighter, the production cost is reduced, the size is smaller, and the packing amount of a single container is improved.

The middle part of the swing plate is connected with the bracket through a spring, and the spring provides a pre-tightening force for pulling backwards for the swing plate. When the linear reciprocating driver retracts when the stretching assembly is in the lying position, the spring provides pretightening force to pull the swinging plate to pull the front side of the mounting side plate downwards and backwards, the lying position is changed to the TV position, then the TV position is changed into the sitting position when the first pedal is retracted, and the pretightening force of the spring ensures the action sequence when the stretching assembly retracts.

The bracket is provided with a second limit for limiting the maximum backward rotation position of the swinging plate. Under the condition that the linear reciprocating driver is not needed to be limited, the second limit is mechanically limited, the limit is more stable, the swinging plate is prevented from retracting infinitely, and the installation side plate and the backrest installation plate are controlled in a reasonable sitting position.

And a third limit for limiting the first connecting rod to swing back and forth is arranged on the front side of the rear end of the third connecting rod. Under the spacing circumstances of the reciprocal driver of straight line not needing, it is spacing that the third is spacing to carry out machinery, and is spacing more stable, has avoided the unlimited stretching out of first connecting rod and has retracted, has guaranteed that first footboard stretches to be suitable to obtain the height, retracts to the bottom of seat.

The front side apex angle pin joint rear end of fifth connecting rod of set square connecting rod, the extension of the front end of fourth connecting rod passes through the rear end front side pin joint of sixth connecting rod and fifth connecting rod, and the fifth connecting rod is provided with the second installation department that is used for installing the second footboard. The second pedal is lifted through the sixth connecting rod, and the width of feet placed in the lying posture and the TV posture is increased by combining the second pedal and the first pedal, so that the comfort is improved.

The underframe includes that the symmetry sets up the side lever in the left and right sides, and at least the rigid coupling has one and side lever vertically horizontal pole between two side levers, still includes quick detach device, quick detach device includes pin thread and box, and pin thread and box are the section bar, and the cross section is the C type, and the pin thread is pegged graft in the box, and the width of the suitable for reading of pin thread and box is greater than the width of end opening, and pin thread or box vertical arranging in the side of frame, assorted box or pin thread are installed on the handrail, and the side at another underframe is installed to assorted box or pin thread. Preferably, a male buckle is arranged on one side of the bottom frame, a female buckle is arranged on one side of the bottom frame, and the female buckle and the male buckle which are matched are arranged on the corresponding handrails. The handrail is convenient to install fast, and the adjacent seat of being convenient for is two people's positions, three people's positions or even the seat of many people's positions through the equipment of pin and box.

The support includes two front and back otic placodes of installing on the underframe. The extension assembly is arranged on the bottom frame through the two ear plates, the installation difficulty is reduced, the bottom frame and the extension assembly are conveniently separated and packaged, the container loading amount of the container is increased, and the transportation cost is reduced.

The underframe includes two horizontal poles in front and back, and two otic placodes are installed respectively on two horizontal poles. Adopt two horizontal poles, improved the stability of underframe, and otic placode and horizontal pole phase-match, the location installation of being convenient for has improved the accuracy of equipment.

And four corners of the bottom frame are bolted with support legs. The stabilizer blade separates with the underframe, reduces the volume of single seat, is convenient for improve the freight volume of single container.

Compared with the prior art, the utility model has the following advantages:

the unilateral extension assembly only has one backrest mounting plate and one mounting side plate, and the extension device of the foot part is a scissor type folding mechanism formed by a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod and a triangular plate connecting rod, so that the structure is simpler, the weight of a single seat is lighter, the production cost is reduced, the size is smaller, and the packing amount of a single container is improved.

The underframe and the extension component are split and packaged, so that the transportation quantity of a single container is convenient to improve, and the transportation cost is reduced. The bottom frame detachable stabilizer blade also can further improve the vanning volume.

The box is convenient for make up into two people's positions and many people's positions, and is convenient for install the handrail, and the simple and easy seat stretching device that will install this underframe transports to the seat assembly factory, is convenient for install the handrail. Adopt this underframe, the modular design seat of being convenient for.

Drawings

FIG. 1 is a schematic view of a simple seat extender in a sitting position;

FIG. 2 is an enlarged view at A of FIG. 1;

FIG. 3 is a schematic view of a simple seat stretcher TV position;

FIG. 4 is a schematic view of the easy seat stretcher in a lying position;

FIG. 5 is a schematic structural view of the bottom frame;

FIG. 6 is a schematic structural view of the male and female buckles;

FIG. 7 is a schematic view of the simple seat extension device inserted into the armrest box at two sides of the sitting position;

FIG. 8 is a schematic view of the easy seat extender in a two-person sitting position;

wherein, 10-bottom frame, 100-handrail box, 101-side bar, 102-cross bar, pivot seat-1021, 103-quick release device, 1031-pin buckle, 1032-box buckle, 103 a-bottom wall, 103 b-side wall, 103 c-blocking wall, extension component-20, backrest mounting plate-201, mounting side plate-202, kidney-shaped hole-2021, swing plate-203, first connecting rod-204, second connecting rod-205, third connecting rod-206, fourth connecting rod-207, triangle plate connecting rod-208, first mounting part-2081, fifth connecting rod-209, second mounting part-2091, support-30, ear plate-301, first limit pin-40, reciprocating driver-50, push rod-60 and second limit pin-70, a third limit pin-80 and a spring-90.

Detailed Description

The present invention is further illustrated by the following description in conjunction with the accompanying drawings, which are included to provide a further understanding of the utility model and are not to be construed as limiting the scope of the utility model, which is defined in the appended claims and all changes that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein by the following claims.

As shown in fig. 1 to 6, a simple seat extension device includes a bottom frame 10 for a seat device, the bottom frame 10 includes side bars 101 symmetrically disposed at left and right sides, two cross bars 102 perpendicular to the side bars are welded between the two side bars 101, four corners of the bottom frame are bolted with support legs 104, the support legs are separated from the bottom frame, the size of a single seat is reduced, and the transportation capacity of a single container is improved. The quick release device 103 is further included, and the quick release device 103 includes a male buckle 1031 and a female buckle 1032. Male buckle and box are the section bar, and the cross section is the C type, and the two is the shaping of bending through panel, including diapire 103a, diapire 103a both sides are bent and have been constituted lateral wall 103b, and two lateral walls are bent to the card wall 103C of adduction, and the male buckle is pegged graft in the box, and the width of the suitable for reading of male buckle and box is greater than the width of suitable for reading down, and the box cup joints in the male buckle outside from last to down, can step up more and stabilize under the effect of gravity. Male buckle or box-lock alternative vertical arranging in the side of underframe, assorted box-lock or pin-lock are installed on the handrail, and assorted box-lock or pin-lock are installed in the side of another underframe, have following several kinds of condition: firstly, two male buckles are installed on the side surface of the bottom frame 10, corresponding female buckles are installed on the armrests, so that the armrests can be conveniently and quickly installed on two sides of the bottom frame, and the corresponding female buckles are installed on the bottom frame of the adjacent seat, so that the two adjacent seats can be conveniently and quickly combined into a two-position or three-position seat; two female buckles are installed on the side face of the bottom frame, corresponding male buckles are installed on the armrests, the armrests can be conveniently and quickly installed on the two sides of the bottom frame, the corresponding male buckles are installed on the bottom frame of the adjacent seat, and the two adjacent seats can be conveniently and quickly combined into a two-position or three-position seat; thirdly, what one side installation of underframe is the pin thread, and what one side installation was the box, the handrail installation assorted box and pin thread that correspond are convenient for install the handrail fast, and the adjacent seat of being convenient for is two people's positions, three people's positions or even the seat of many people's positions through the equipment of pin thread.

The easy seat extension apparatus further includes a bilaterally symmetric extension assembly 20, the extension assembly 20 includes a bracket 30 connected to the base frame 10, and the bracket 30 includes two ear plates 301 installed at the front and rear of the two cross bars 102. The backrest mounting plate 201 located at the rear portion is pivoted with the support located at the rear portion, the rear end of the mounting side plate 202 used for mounting the seat portion of the seat is pivoted with the backrest mounting plate, a first limit for limiting the front-back swing angle of the backrest mounting plate is arranged between the mounting side plate and the backrest mounting plate, the first limit is a waist-shaped hole 2021 formed in the mounting side plate 202 and a first limit pin 40 installed on the backrest mounting plate 201, the limit pin is inserted into the waist-shaped hole, and the waist-shaped hole limits the swing amplitude of the limit pin. The middle part of the mounting side plate near the front is pivotally connected with the ear plate 301 at the front through the pivotally connected swing plate 203, the front end of the mounting side plate is pivotally connected with the rear end of the first connecting rod 204, the front end and the rear side of the mounting side plate 202 are pivotally connected with the rear end of the second connecting rod 205, the front end of the second connecting rod 205 is pivotally connected with the rear end of the third connecting rod 206, the rear end and the front side of the third connecting rod are pivotally connected with the rear side of the front end of the first connecting rod, the front end of the first connecting rod 204 is pivotally connected with the rear end of the fourth connecting rod 207, the front end of the third connecting rod is pivotally connected with one vertex angle of the triangle plate connecting rod 208, the front end of the fourth connecting rod is pivotally connected with the other vertex angle of the triangle plate connecting rod, the triangle plate connecting rod is provided with a first mounting part 2081 for mounting the first pedal, the front vertex angle of the triangle plate connecting rod 208 is pivotally connected with the rear end of the fifth connecting rod 209, the extension section of the front end of the fourth connecting rod is pivotally connected with the rear end of the fifth connecting rod through the sixth connecting rod 210, the fifth connecting rod is provided with a second mounting part 2091 for mounting the second pedal, the utility model can be provided with the first pedal and the second pedal, and the combination of the second pedal and the first pedal increases the width of feet, thereby improving the comfort of TV posture and lying posture. The device further comprises a linear reciprocating driver 50 for driving the stretching assembly to sit, TV and lie, the rear end of the linear reciprocating driver is pivoted with a cross rod at the rear part, a pivoting seat 1021 is welded in the middle of the cross rod, the linear reciprocating driver is pivoted with the pivoting seat through a pin shaft, the front end of the linear reciprocating driver is pivoted with a push rod 60, and two ends of the push rod 60 are fixedly connected with second connecting rods 205 at the left side and the right side. The middle part of rocking plate 203 is connected with the otic placode that is in the front portion through spring 90, spring 90 provides a pretightning force that draws backward for rocking plate, the otic placode of front portion is provided with the restriction rocking plate and rotates the second of maximum position backward spacingly, the second is spacing for installing second spacer pin 70 on this otic placode, under the spacing circumstances of the reciprocal driver of straight line that does not need, the second is spacing to carry out machinery spacingly, it is spacing more stable, rocking plate unlimited retraction has been avoided, it controls at reasonable position of sitting to have guaranteed installation curb plate and back mounting panel. The rear end front side of third connecting rod is provided with the third of restriction first connecting rod rearward swing around spacing, and the third is spacing for installing third spacer pin 80 on the third connecting rod, and under the spacing circumstances of the reciprocal driver of straight line not needing, the third is spacing to carry out machinery spacing, and is spacing more stable, has avoided the unlimited stretching out of first connecting rod and has retracted, has guaranteed that first footboard stretches to be fit for obtaining the height, retracts to the bottom of seat. The linear reciprocating driver adopts an electric push rod, has the pushing force and the pulling force of extension and retraction, and also has a certain positioning and stretching function.

The single-side stretching assembly only comprises the backrest mounting plate and the mounting side plate, the stretching device at the foot part is a scissor type folding mechanism formed by the first, second, third, fourth, fifth and sixth connecting rods and the triangular plate connecting rod, the structure is simpler, the moving track is stable, the first pedal and the second pedal can be accurately driven to reasonable positions, the weight of a single seat is lighter, the production cost is reduced, the size is smaller, and the packing amount of a single container is improved.

The simple seat extension has three positions, a sitting position (fig. 1), a TV position (fig. 3) and a recumbent position (fig. 4). When the linear reciprocating driver retracts when the stretching assembly is in the lying position, the spring provides pretightening force to pull the swinging plate to pull the front side of the mounting side plate downwards and backwards, the lying position is changed to the TV position, then the TV position is changed into the sitting position when the first pedal and the second pedal are retracted, and the pretightening force of the spring ensures the retracting action sequence of the stretching assembly.

As shown in fig. 7, male buckles are fixedly connected to two sides of the sitting simple seat stretching device, and a handrail box with female buckles can be inserted and fixed, so that the functionality of the product is improved.

As shown in the drawing 8, the two sides of the sitting posture simple seat extension device are fixedly connected with male buckles, and can be fixedly connected with the sitting posture simple seat extension device with female buckles fixedly connected to the two sides in an inserting way to be combined into a double seat.

Claims

1. A simple seat stretching device is characterized in that: comprises a bottom frame and stretching components which are arranged on the upper side of the bottom frame in a bilateral symmetry manner, wherein the stretching components comprise brackets connected with the bottom frame, a backrest mounting plate at the rear part is pivoted with the brackets, the rear end of a mounting side plate for mounting a seat part of a seat is pivoted with the backrest mounting plate, a first limit for limiting the front-back swinging angle of the backrest mounting plate is arranged between the mounting side plate and the backrest mounting plate, the front position in the middle of the mounting side plate near the front is pivoted with the brackets through a pivoted swinging plate, the front end of the mounting side plate is pivoted with the rear end of a first connecting rod, the front end of the mounting side plate is pivoted with the rear end of a second connecting rod, the front end of the second connecting rod is pivoted with the rear end of a third connecting rod, the front end of the third connecting rod is pivoted with the rear end of the first connecting rod, the front end of the first connecting rod is pivoted with the rear end of a fourth connecting rod, the front end of the third connecting rod is pivoted with one apex angle of a triangular plate connecting rod, and the front end of the fourth connecting rod is pivoted with the other apex angle of the triangular plate connecting rod, the set square connecting rod is provided with a first installation part for installing a first pedal and further comprises a linear reciprocating driver for driving the stretching assembly to sit, TV and lie, one end of the linear reciprocating driver is pivoted with the bottom frame or the support, the other end of the linear reciprocating driver is pivoted with the push rod, and two ends of the push rod are fixedly connected with the second connecting rods on the left side and the right side.

2. The easy seat extension apparatus of claim 1, wherein: the middle part of the swing plate is connected with the bracket through a spring, and the spring provides a pre-tightening force for pulling backwards for the swing plate.

3. The easy seat extension apparatus of claim 1, wherein: the bracket is provided with a second limit for limiting the maximum backward rotation position of the swinging plate.

4. The easy seat extension apparatus of claim 3, wherein: the front side of the rear end of the third connecting rod is provided with a third limit for limiting the first connecting rod to swing back and forth.

5. The easy seat extension apparatus of claim 3, wherein: the front side vertex angle of the triangle connecting rod is pivoted with the rear end of the fifth connecting rod, the extending section of the front end of the fourth connecting rod is pivoted with the front side of the rear end of the fifth connecting rod through the sixth connecting rod, and the fifth connecting rod is provided with a second mounting part for mounting a second pedal.

6. The easy seat extension apparatus of claim 1, wherein: the underframe includes that the symmetry sets up the side lever in the left and right sides, and at least the rigid coupling has one and side lever vertically horizontal pole between two side levers, still includes quick detach device, quick detach device includes pin thread and box, and pin thread and box are the section bar, and the cross section is the C type, and the pin thread is pegged graft in the box, and the width of the suitable for reading of pin thread and box is greater than the width of end opening, and pin thread or box vertical arranging in the side of frame, assorted box or pin thread are installed on the handrail, and the side at another underframe is installed to assorted box or pin thread.

7. The easy seat stretcher of claim 6 wherein: the support includes two front and back otic placodes of installing on the underframe.

8. The easy seat extension apparatus of claim 7, wherein: the underframe includes two horizontal poles in front and back, and two otic placodes are installed respectively on two horizontal poles.

9. The simple seat extension device of claim 1, wherein: and four corners of the bottom frame are bolted with support legs.