Folding deck chair with adjustable backrest

Abstract

The utility model discloses a folding deck chair with an adjustable backrest, and relates to the field of folding deck chairs, the folding deck chair comprises a support frame, the support frame is connected with a sitting middle frame and a leg support bottom frame through a rotating shaft, the left end of the outer side wall of the sitting middle frame is fixedly provided with a fixing plate, and the inner side surface of the fixing plate is rotatably connected with an adjusting rotating shaft; the outer wall of the adjusting rotating shaft is fixedly connected with a back rear frame, and an adjusting locking assembly is arranged on the supporting frame. The adjusting and locking assembly comprises a fixing box, a driven gear sleeve is rotationally connected to an inner cavity of the fixing box, the driven gear sleeve is fixedly connected with the outer wall of the adjusting rotating shaft, and a disassembly and assembly part is arranged on the outer side wall of the fixing box; and the disassembly and assembly part comprises lug plates fixedly connected with the outer walls of the two sides of the fixing box, and fixing bolts are in threaded connection with the interiors of the two sets of lug plates. The angle of the backrest of the folding deck chair can be conveniently adjusted through the adjusting and locking assembly, the position of the adjusted back rear frame can be fixed, rapid disassembly and assembly of the adjusting and locking assembly and the supporting frame are achieved through the disassembly and assembly part, and later maintenance is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to folding deck chair technical field, especially in an adjustable backrest's folding deck chair. BACKGROUND

[0002] Folding deck chair is a kind of multifunctional furniture, combines the function of seat and deck chair, is suitable for indoor and outdoor use.Its characteristics are foldable design, it is convenient to store and carry, saves space.It is usually made of metal frame and comfortable fabric (such as canvas, nylon or mesh material), some styles are also equipped with headrest and footboard, provide better support and relaxation experience.

[0003] Folding deck chair can adjust the angle of backrest according to the use demand when using, is widely used in family, balcony, beach, camping and other scenes, is practical and portable.

[0004] The existing folding deck chair is usually moved the position of the adjusting rod supporting the backrest when adjusting the angle of backrest, so that the adjusting rod is clamped in the corresponding slot to achieve the purpose of adjusting the angle of backrest, the operation is troublesome in the process of adjusting, and with the extension of use time, the adjusting rod has the risk of being separated from the corresponding slot, and the folding deck chair is not stable enough, therefore, according to the actual use, the above prior art is improved. UTILITY MODEL CONTENTS

[0005] (I) technical problem solved

[0006] In view of the problems existing in the above prior art, the utility model provides a folding deck chair with adjustable backrest.

[0007] (II) technical scheme

[0008] To achieve the above purpose, the utility model is realized by the following technical schemes:

[0009] A folding deck chair with adjustable backrest, comprising a support frame, a sitting and standing middle frame is connected to the support frame through a rotating shaft, and a leg support bottom frame is connected to the front end of the sitting and standing middle frame through a rotating shaft, a fixed plate is fixedly installed on the left end of the outer side wall of the sitting and standing middle frame, an adjusting rotating shaft is rotatably connected to the inner side surface of the fixed plate through a bearing, and a back part rear frame is fixedly connected to the outer wall of the adjusting rotating shaft, and an adjusting and locking assembly for adjusting the back part rear frame is arranged on the support frame;

[0010] The adjusting and locking assembly comprises a fixed box connected with the outer wall of the support frame, a driven gear sleeve rotatably connected in the inner cavity of the fixed box, and the outer wall of the driven gear sleeve is fixedly connected with the adjusting rotating shaft, and a dismounting component is arranged on the outer side wall of the fixed box;

[0011] The dismounting component comprises an ear plate fixedly connected with the outer wall of the fixed box on both sides, and a fixed bolt is threadedly connected in the ear plate.

[0012] As a preferred scheme of the folding deck chair with adjustable backrest of the utility model, the adjusting and locking assembly further comprises a rotating disc on the outer side of the fixing box, a driving rod is connected to the rotating disc, the other end of the driving rod extends into the inner cavity of the fixing box, a driving gear is installed on the driving rod, and the driving gear is in meshing connection with the driven gear sleeve.

[0013] As a preferred scheme of the folding deck chair with adjustable backrest of the utility model, a plurality of positioning threaded holes in annular array are formed on the driving gear, and locking bolts compatible with the positioning threaded holes are threadedly connected to the fixing box.

[0014] As a preferred scheme of the folding deck chair with adjustable backrest of the utility model, positioning holes compatible with the fixing bolts are formed on one surface of each of the two sets of ear plates and the support frame, and the surface of the ear plate close to the support frame is arc-shaped.

[0015] As a preferred scheme of the folding deck chair with adjustable backrest of the utility model, the end of the adjusting rotating shaft close to the fixing box is rotatably connected to the inner wall of the fixing box through a bearing.

[0016] (Three) beneficial effects

[0017] The utility model provides a folding deck chair with adjustable backrest. The following beneficial effects are achieved:

[0018] The rotation of the rotating disc on the adjusting and locking assembly can drive the driving gear on the driving rod to rotate, since the driving gear is in meshing connection with the driven gear sleeve, the adjusting rotating shaft fixedly connected with the driven gear sleeve is driven to rotate, thereby the adjustment of the backrest angle of the folding deck chair is realized. After the use angle is determined, the position of the driving gear can be locked through the thread connection of the locking bolt and the corresponding positioning threaded hole, so that the backrest frame is prevented from moving after the use angle is adjusted, and the stability of the folding deck chair in use is improved.

[0019] The thread connection of the fixing bolt on the dismounting component with the ear plate and the support frame realizes the quick dismounting of the adjusting and locking assembly and the support frame, and facilitates the maintenance of the adjusting and locking assembly in later period. ACCURACY

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creating labor under the premise of the drawings.

[0021] Figure 1 It is the whole structure schematic diagram of the utility model;

[0022] Figure 2 is another face structure schematic view of the utility model;

[0023] Figure 3 is the utility model adjusting locking assembly and adjusting rotation axis, back frame connecting structure schematic view;

[0024] Figure 4 is the utility model adjusting rotation axis and fixed box internal connecting structure schematic view.

[0025] In the figure, 1, sit in the middle frame;2, leg support bottom frame;3, back frame;4, fixed plate;5, adjusting rotation axis;6, adjusting locking assembly;600, fixed box;601, turntable;602, locking bolt;603, driving gear;604, positioning thread hole;605, driven gear sleeve;7, support frame;8, dismounting part;800, ear plate;801, fixed bolt. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.

[0027] Embodiment 1

[0028] Refer to Figures 1-4 , this embodiment provides a kind of adjustable folding deck chair of backrest, including support frame 7, support frame 7 is connected with sit in the middle frame 1 by pivot, and the front end of sit in the middle frame 1 is connected with leg support bottom frame 2 by pivot, and the left end of the outer side wall of sit in the middle frame 1 is fixedly installed with fixed plate 4, and the inner side surface of fixed plate 4 is rotatably connected with adjusting rotation axis 5 by bearing, and the outer wall of adjusting rotation axis 5 is fixedly connected with back frame 3, and support frame 7 is equipped with the adjusting locking assembly 6 of adjusting back frame 3;Folding deck chair is mainly supported by support frame 7, support frame 7, sit in the middle frame 1, leg support bottom frame 2, back frame 3 are composed of folding deck chair, this is existing furniture, specific structure and working principle are not described here;

[0029] Adjusting locking assembly 6, including the fixed box 600 connected with the outer wall of support frame 7, the inner cavity of fixed box 600 is equipped with the driven gear sleeve 605 of rotation connection, and the outer wall of driven gear sleeve 605 is fixedly connected with adjusting rotation axis 5, and the outer side wall of fixed box 600 is equipped with dismounting part 8;

[0030] Specifically, adjusting locking assembly 6 further includes the turntable 601 on the outer side of fixed box 600, driving rod is connected on turntable 601, and the other end of driving rod extends into the inner cavity of fixed box 600, and driving rod is installed with driving gear 603, and driving gear 603 is engagedly connected with driven gear sleeve 605;

[0031] The rotation of the rotating disc 601 can drive the driving gear 603 fixedly connected to the driving rod to rotate forward or reversely, since the driving gear 603 is in meshing connection with the driven gear sleeve 605, the driven gear sleeve 605 is fixedly connected to the outer wall of the adjusting rotating shaft 5, and the adjusting rotating shaft 5 is rotatably connected to the inner wall of the fixed box 600 and the inner wall of the fixed plate 4 through bearings, the rotation of the rotating disc 601 drives the back frame 3 fixedly connected to the adjusting rotating shaft 5 to rotate and adjust the angle.

[0032] Further, a plurality of positioning threaded holes 604 arranged in a ring array are formed in the driving gear 603, and the fixed box 600 is threadedly connected with locking bolts 602 matched with the positioning threaded holes 604; when the use angle of the back frame 3 is adjusted, the locking bolts 602 are not connected with the corresponding positioning threaded holes 604, at this time, the driving gear 603 can rotate, after the use angle of the driving gear 603 is determined, the locking bolts 602 are aligned with a certain group of positioning threaded holes 604 on the driving gear 603, and the position of the driving gear 603 can be locked through the threaded connection between the locking bolts 602 and the corresponding positioning threaded holes 604, so that the back frame 3 cannot move after the use angle is adjusted, and the stability of the folding deck chair is improved.

[0033] Further, one end of the adjusting rotating shaft 5 close to the fixed box 600 is rotatably connected to the inner wall of the fixed box 600 through a bearing.

[0034] Embodiment 2

[0035] Referring to Figure 1 and Figure 4 As the second embodiment of the utility model, based on the previous embodiment, the disassembling part 8 comprises ear plates 800 fixedly connected to the outer walls of the fixed box 600 on both sides, and two groups of fixed bolts 801 are threadedly connected in the ear plates 800.

[0036] Specifically, positioning holes matched with the fixed bolts 801 are formed in the ear plates 800 and the support frame 7, and one side of the ear plate 800 close to the support frame 7 is arc-shaped.

[0037] Further, when the fixed box 600 is installed with the support frame 7, the ear plate 800 is close to and attached to the outer wall of the support frame 7, the positioning holes in the ear plate 800 are aligned with the positioning holes formed in the support frame 7, and then the fixed bolt 801 is rotated to connect the bottom end of the fixed bolt 801 with the positioning holes formed in the support frame 7, so that the installation of the fixed box 600 with the support frame 7 is completed, when disassembled, the fixed bolt 801 is separated from the positioning holes, so that the fixed box 600 is separated from the outer wall of the support frame 7, the quick disassembly of the adjusting and locking assembly 6 with the support frame 7 is realized, and the later maintenance of the adjusting and locking assembly 6 is facilitated.

[0038] Working principle: when using the utility model, first, the lug plate 800 on the disassembling part 8 is close to and adheres to the outer wall of the support frame 7, the positioning hole on the lug plate 800 is aligned with the positioning hole opened on the support frame 7, then the fixing bolt 801 is rotated, the bottom end is connected with the positioning hole opened on the support frame 7, the installation of the fixed box 600 and the support frame 7 is completed, when the use angle of the back rear frame 3 is adjusted, the locking bolt 602 is not connected with the corresponding positioning screw hole 604, then the staff hand holds the rotating disc 601 and makes the driving rod fixedly connected with the driving gear 603 rotate, because the driving gear 603 is meshed with the driven gear sleeve 605, the driven gear sleeve 605 is fixedly connected with the outer wall of the adjusting rotating shaft 5, the adjusting rotating shaft 5 is rotatably connected with the inner cavity of the fixed box 600 and the inner wall of the fixed plate 4 through the bearing, the rotation of the rotating disc 601 drives the back rear frame 3 fixedly connected on the adjusting rotating shaft 5 to rotate and adjust the angle, after the use angle is determined, the locking bolt 602 is aligned with a certain group of positioning screw holes 604 on the driven gear 603, through the threaded connection of the locking bolt 602 and the corresponding positioning screw hole 604, the position of the driving gear 603 can be locked, the back rear frame 3 is prevented from moving after the use angle is adjusted, the stability of the folding deck chair is improved.

[0039] It should be noted that in this document, the terms such as first and second are used only to differentiate one entity or operation from another entity or operation, and do not necessarily require or imply there is any such actual relationship or order between these entities or operations.

Claims

1. A folding deck chair with adjustable backrest, comprising a support frame (7) on which a sitting-lying middle frame (1) is connected by a pivot, and the front end of the sitting-lying middle frame (1) is connected by a pivot with a leg rest bottom frame (2), characterized in that, The outer side wall left end of the sitting frame (1) is fixedly provided with a fixed plate (4), the inner side of the fixed plate (4) is rotatably connected with an adjusting rotating shaft (5) through a bearing, and the outer wall of the adjusting rotating shaft (5) is fixedly connected with a back frame (3), and the supporting frame (7) is provided with an adjusting locking assembly (6) for adjusting the back frame (3); The adjusting locking assembly (6) comprises a fixed box (600) connected with the outer wall of the supporting frame (7), the inner cavity of the fixed box (600) is provided with a driving gear sleeve (605) rotatably connected, and the outer wall of the driving gear sleeve (605) is fixedly connected with the outer wall of the adjusting rotating shaft (5), and the outer side wall of the fixed box (600) is provided with a dismounting part (8); The dismounting part (8) comprises an ear plate (800) fixedly connected with the outer wall of the fixed box (600) on both sides, and the inner side of the two groups of ear plates (800) is threadedly connected with a fixed bolt (801).

2. The folding lounge chair with an adjustable backrest of claim 1, wherein: The adjusting locking assembly (6) further comprises a rotating disc (601) located on the outer side of the fixed box (600), the rotating disc (601) is connected with a driving rod, and the other end of the driving rod extends into the inner cavity of the fixed box (600).

3. The adjustable-back folding deck chair of claim 2, wherein: The driving rod is provided with a driving gear (603), and the driving gear (603) is meshed with the driving gear sleeve (605).

4. The adjustable-back folding deck chair of claim 3, wherein: A plurality of positioning threaded holes (604) in annular array are formed in the driving gear (603), and the fixed box (600) is threadedly connected with a locking bolt (602) matched with the positioning threaded hole (604).

5. The adjustable-back folding lounge chair of claim 1, wherein: The supporting frame (7) and the two groups of ear plates (800) are both provided with positioning holes matched with the fixed bolt (801), and the side of the ear plate (800) close to the supporting frame (7) is arc-shaped.

6. The adjustable-back folding lounge chair of claim 1, wherein: The end of the adjusting rotating shaft (5) close to the fixed box (600) is rotatably connected with the inner wall of the fixed box (600) through a bearing.

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