CN217658841U

CN217658841U - Folding chair with adjustable back inclination angle function

Info

Publication number: CN217658841U
Application number: CN202221607327.1U
Authority: CN
Inventors: 王淑慧; 顾洛溦; 周韦玮; 方雯
Original assignee: Nanjing Tech University
Current assignee: Nanjing Tech University
Priority date: 2022-06-23
Filing date: 2022-06-23
Publication date: 2022-10-28
Anticipated expiration: 2032-06-23

Abstract

The utility model discloses a folding chair with adjustable function of back of chair inclination, including the regulating box, the equal fixedly connected with riser in position around the regulating box top is left, two around one side that the riser is relative is rotated through the loose axle and is connected with the back of the chair, be connected with the screw rod through the bearing rotation between the left and right sides of regulating box inner chamber, the surface threaded connection of screw rod has the rectangular plate. The utility model discloses a set up the regulating box, the first riser, the back of the chair, the screw rod, the rectangular plate, protruding type traveller, the arm-tie, second riser and chair leg, can construct the folding chair jointly, and simultaneously, can conveniently adjust the inclination of the back of the chair, through setting up the extension board, the bottom plate, pinhole and spacing bolt, can conveniently adjust the bearing height of folding chair, through setting up above structure, possess the folding chair when using, have the advantage of the function of back of the chair inclination adjustment, thereby avoid influencing the travelling comfort of folding chair.

Description

Folding chair with adjustable back inclination angle function

Technical Field

The utility model relates to a folding chair technical field specifically is folding chair with back of the chair inclination adjustable function.

Background

The folding chair is light and can be folded, the chair with the function of being capable of being folded is convenient to move and saves space, the folding chair is originally used for military application and is often used in various training institutions, schools at all levels, public places, hospitals, restaurants, hotels, companies, families and other places, and most of the traditional folding chairs do not have the function of adjusting the inclination angle of the chair back when in use, so that the best sitting posture cannot be adjusted according to actual use conditions, the comfort of the folding chair is influenced, and the folding chair with the function of adjusting the inclination angle of the chair back is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model aims to provide a folding chair with back of the chair inclination adjustable function possesses folding chair when using, has the advantage of back of the chair inclination adjustment's function, has solved original folding chair when using, has not had the problem of back of the chair inclination adjustment function.

In order to achieve the above object, the utility model provides a following technical scheme: folding chair with back of the chair inclination adjustable function, including the regulating box, the equal fixedly connected with riser in the left front and back position in regulating box top, two around the relative one side of riser rotates through the loose axle and is connected with the back of the chair, rotate through the bearing between the left and right sides of regulating box inner chamber and be connected with the screw rod, the surface threaded connection of screw rod has the rectangular plate, the front and the equal protruding type traveller of fixedly connected with in the back of rectangular plate, the one end that the rectangular plate was kept away from to protruding type traveller runs through the regulating box and extends to the outside of regulating box, the surface of protruding type traveller is equipped with the arm-tie with the outside cover that is located the regulating box, the arm-tie is kept away from protruding type traveller one end and is rotated through the junction of loose axle with the back of the chair and is connected, the equal fixedly connected with second riser in the front and back position around the regulating box bottom left and right sides, two around the relative one side of second riser rotates through the loose axle and is connected with the chair leg, the right-hand member of screw rod runs through regulating box and fixedly connected with turning handle.

Preferably, the inner cavities of the chair legs are connected with a sliding plate in a sliding mode, the bottom of the sliding plate is fixedly connected with an elongated plate, and the bottom of the elongated plate penetrates through the chair legs and is fixedly connected with a bottom plate.

Preferably, the front and back positions of one side of the lengthened plate are uniformly provided with pin holes, the front and back positions of the bottom of one side of the chair leg are in threaded connection with limit bolts, and one end of each limit bolt penetrates through the chair leg and extends to the inner cavity of each pin hole.

Preferably, the left and right sides of the inner cavity of the chair leg are provided with slideways matched with the sliding plate, and the inner surfaces of the slideways are in sliding connection with the outer surface of the sliding plate.

Preferably, the top of the rectangular cylinder is fixedly connected with a guide plate, the top of the inner cavity of the adjusting box is provided with a guide groove matched with the guide plate, and the outer surface of the guide plate is connected with the inner surface of the guide groove in a sliding manner.

Preferably, the left side and the right side of the bottom of the adjusting box are fixedly connected with limiting plates matched with the chair legs, and the outer surfaces of the limiting plates are tightly attached to the joints of the chair legs.

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

the utility model discloses a set up the regulating box, the first riser, the back of the chair, the screw rod, the rectangular plate, protruding type traveller, the arm-tie, second riser and chair leg, can establish the folding chair jointly, and simultaneously, can conveniently adjust the inclination of the back of the chair, through setting up extension plate, the bottom plate, pinhole and spacing bolt, can conveniently adjust the bearing height of folding chair, through setting up above structure, possess the folding chair when using, have the advantage of the function of back of the chair inclination adjustment, solved original folding chair when using, do not have the problem of back of the chair inclination adjustment function, thereby avoid influencing the travelling comfort of folding chair.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the structure of the adjusting box of the present invention;

FIG. 3 is a cross-sectional view of the chair leg structure of the present invention;

fig. 4 is a connection perspective view of the rectangular plate and the convex sliding column structure of the present invention.

In the figure: 1. an adjusting box; 2. a first vertical plate; 3. a chair back; 4. a screw; 5. a rectangular plate; 6. a male spool; 7. pulling a plate; 8. a second vertical plate; 9. a chair leg; 10. a slide plate; 11. lengthening a plate; 12. a base plate; 13. a pin hole; 14. a limit bolt; 15. a slideway; 16. a guide plate; 17. a guide groove; 18. and a limiting plate.

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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like, are to be interpreted broadly, such as "connected", which may be 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.

Referring to fig. 1-4, a folding chair with a function of adjusting the inclination angle of a chair back comprises an adjusting box 1, a protective cushion is fixedly connected to the top of the adjusting box 1, moving grooves matched with convex sliding columns 6 are formed in the front and back surfaces of the adjusting box 1, first vertical plates 2 are fixedly connected to the front and back positions of the left side of the top of the adjusting box 1, a chair back 3 is rotatably connected to one side of the front and back first vertical plates 2 through a movable shaft, a screw rod 4 is rotatably connected between the left side and the right side of the inner cavity of the adjusting box 1 through a bearing, a rectangular plate 5 is connected to the outer surface of the screw rod 4 through a thread, convex sliding columns 6 are fixedly connected to the front and back surfaces of the rectangular plate 5, one ends of the convex sliding columns 6, far away from the rectangular plate 5, penetrate through the adjusting box 1 and extend to the outer side of the adjusting box 1, a pull plate 7 is sleeved on the outer surface of the convex sliding columns 6 and positioned on the outer side of the adjusting box 1, one end of the pull plate 7, which is far away from the convex sliding column 6, is rotatably connected with the connection part of the chair back 3 through a movable shaft, the front and back positions of the left side and the right side of the bottom of the adjusting box 1 are fixedly connected with second vertical plates 8, one opposite sides of the front and the back second vertical plates 8 are rotatably connected with chair legs 9 through movable shafts, the right end of the screw rod 4 penetrates through the adjusting box 1 and is fixedly connected with a rotating handle, the adjusting box 1, the first vertical plate 2, the chair back 3, the screw rod 4, the rectangular plate 5, the convex sliding column 6, the pull plate 7, the second vertical plates 8 and the chair legs 9 are arranged, the folding chair can be jointly constructed, meanwhile, the inclination angle of the chair back 3 can be conveniently adjusted, the bearing height of the folding chair can be conveniently adjusted through the lengthened plate 11, the bottom plate 12, the pin hole 13 and the limiting bolt 14, the structure is arranged, and the folding chair has the advantage of the function of adjusting the inclination angle of the chair back 3 when the folding chair is used, the problem that the original folding chair does not have the function of adjusting the inclination angle of the chair back 3 when in use is solved, thereby avoiding influencing the comfort of the folding chair.

Specifically, the inner cavity of the chair leg 9 is connected with a sliding plate 10 in a sliding manner, the bottom of the sliding plate 10 is fixedly connected with an elongated plate 11, the bottom of the elongated plate 11 penetrates through the chair leg 9 and a bottom plate 12 in a fixed manner, and the length of the chair leg 9 can be conveniently adjusted by arranging the sliding plate 10, the elongated plate 11 and the bottom plate 12.

Specifically, the front and back positions of one side of the lengthened plate 11 are uniformly provided with pin holes 13, the front and back positions of the bottom of one side of the chair leg 9 are respectively in threaded connection with a limit bolt 14, one end of the limit bolt 14 penetrates through the inner cavity of the chair leg 9 and extends to the pin holes 13, and the connecting part between the lengthened plate 11 and the chair leg 9 can be limited by arranging the pin holes 13 and the limit bolts 14.

Specifically, the slide 15 that uses with slide 10 cooperation has all been seted up to the left and right sides of 9 inner chambers of chair leg, and slide 15's internal surface and slide 10's surface sliding connection can support slide 10 through setting up slide 15, simultaneously, carry on spacingly to it.

Specifically, the top fixedly connected with deflector 16 of rectangular plate 5, the guide way 17 that uses with the cooperation of deflector 16 has been seted up at the top of the inner chamber of regulating box 1, and the surface of deflector 16 and the internal surface sliding connection of guide way 17 can lead rectangular plate 5 through setting up deflector 16 and guide way 17, carry on spacingly to it simultaneously.

Specifically, the left side and the right side of the bottom of the adjusting box 1 are fixedly connected with limiting plates 18 matched with the chair legs 9 for use, the outer surfaces of the limiting plates 18 are tightly attached to the joints of the chair legs 9, and the chair legs 9 can be limited by the limiting plates 18.

During the use, rotate the chair leg 9 of both sides, make chair leg 9 and limiting plate 18 closely laminate, when the use height of folding chair needs to be adjusted, stimulate bottom plate 12 in proper order, make bottom plate 12 drive extension plate 11 and remove, extension plate 11 drives slide 10 at the internal surface sliding movement of slide 15, when bottom plate 12 drives extension plate 11 and removes suitable position, rotate the spacing bolt 14 of both sides in proper order, make spacing bolt 14 insert the inner chamber of pinhole 13, thereby spacing the junction between extension plate 11 and chair leg 9, thereby accomplish the adjustment to folding chair use height, then, rotate the turning handle, make the turning handle drive screw rod 4 and rotate at the internal surface screw thread of rectangular plate 5, and simultaneously, rectangular plate 5 drives protruding type traveller 6 of both sides and removes, make protruding type traveller 6 drive arm 7 remove, carriage arm 7 drives back of the chair 3 and rotates for the loose axle is circular, thereby make back of the chair 3 expand the while, adjust its inclination, when folding chair needs are folded, otherwise above operation, can accomplish the folding chair and use the travelling comfort, thereby the folding chair is convenient for the folding chair to accomodate, thereby avoid the influence of folding chair.

The standard parts used in the present application document can be purchased from the market, and can be customized according to the description of the specification and the description of the attached drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets, welding and the like, the machinery, parts and equipment adopt the conventional type in the prior art, the control mode is automatically controlled by a controller, the control circuit of the controller can be realized by simple programming of technicians in the field, and the present application belongs to the common knowledge in the field, and is mainly used for protecting mechanical devices, so the control mode and the circuit connection are not explained in detail in the present application.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

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. Folding chair with back of chair inclination adjustable function, including adjusting box (1), its characterized in that: the utility model discloses a quick-witted regulation case, including regulation case (1), the equal fixedly connected with riser in position (2) around the left side in regulation case (1) top, two around the one side that riser (2) is relative is rotated through the loose axle and is connected with back of the chair (3), rotate through the bearing between the left and right sides of regulation case (1) inner chamber and be connected with screw rod (4), the surface threaded connection of screw rod (4) has rectangular plate (5), the front and the equal fixedly connected with protruding type traveller (6) in the back of rectangular plate (5), the one end that rectangular plate (5) were kept away from in protruding type traveller (6) runs through regulation case (1) and extends to the outside of regulation case (1), the surface of protruding type traveller (6) and the outside cover that is located regulation case (1) are equipped with arm-tie (7), the junction that slip tower (6) one end was passed through protruding type traveller and back of the chair (3) is rotated and is connected in arm-tie (7), the equal fixedly connected with second riser (8) in position around the regulation case (1) bottom left and right-hand member in position around the relative one side is connected with second riser (8) through the loose axle rotation leg (9), two around the regulation case (1) and the screw rod (4) handle.

2. The folding chair with the function of adjusting the inclination angle of the chair back as claimed in claim 1, wherein: the chair is characterized in that the inner cavity of each chair leg (9) is connected with a sliding plate (10) in a sliding mode, the bottom of each sliding plate (10) is fixedly connected with an elongated plate (11), and the bottom of each elongated plate (11) penetrates through the corresponding chair leg (9) and is fixedly connected with a bottom plate (12).

3. The folding chair with the function of adjusting the inclination angle of the chair back as claimed in claim 2, wherein: pinhole (13) have evenly been seted up to the position around extension board (11) one side, the equal threaded connection in position has spacing bolt (14) around chair leg (9) one side bottom, spacing bolt (14) one end runs through chair leg (9) and extends to the inner chamber of pinhole (13).

4. The folding chair with the function of adjusting the inclination angle of the chair back as claimed in claim 2, wherein: slide (15) with slide (10) cooperation use have all been seted up to the left and right sides of chair leg (9) inner chamber, the internal surface of slide (15) and the surface sliding connection of slide (10).

5. The folding chair with the function of adjusting the inclination angle of the chair back as claimed in claim 1, wherein: the top fixedly connected with deflector (16) of rectangular plate (5), guide way (17) that use with deflector (16) cooperation are seted up at the top of the inner chamber of regulating box (1), the surface of deflector (16) and the internal surface sliding connection of guide way (17).

6. The folding chair with the function of adjusting the inclination angle of the chair back as claimed in claim 1, wherein: the left and right sides of regulating box (1) bottom all fixedly connected with chair leg (9) cooperation use limiting plate (18), the junction of the surface of limiting plate (18) and chair leg (9) closely laminates.