Adjustable fixing device for a sofa frame

Abstract

The utility model discloses a kind of adjustable fixing devices of sofa iron stand, it is related to sofa iron stand technical field, including base frame seat, backrest frame is installed in base frame seat outer end, backrest frame middle end is equipped with the hole of bearing, backrest frame lower end is equipped with the hole of supporting leg, supporting leg hole inner end is installed with extension supporting leg, extension supporting leg one end is installed with connecting foot limiting shaft, base frame seat one end is equipped with limit rod sliding slot, backrest frame one end is equipped with limit bolt slot, limit bolt slot inner end is installed with top bolt spring, top bolt spring front end is installed with positioning bolt.The utility model is set by base frame seat, backrest frame, extension supporting leg, connecting foot limiting shaft, top bolt spring and positioning bolt, backrest frame is rotated on base frame seat by the hole of bearing, and positioning bolt is moved forward to be engaged with extension supporting leg in limit bolt slot by the force of effect of top bolt spring, to fix the use angle of adjusting backrest frame, the stability of device adjusting fixed use angle is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sofa iron frame technical field, concretely is adjustable fixing device of sofa iron frame. BACKGROUND

[0002] Sofa as a kind of furniture, has played a very important role in people's life, whether it is beautifying home environment, or providing comfortable rest environment for people, is an indispensable kind of furniture, in home life, whether people are at home entertainment or rest, like using sofa this soft and comfortable furniture, sofa has backrest, can be rested comfortably on backrest when sitting on sofa, and different people use demand is not the same, the headrest height and backrest angle demand of sofa are not the same, the backrest adjustment stability of existing sofa iron frame is not strong, and the comfort degree is single, therefore need a kind of adjustable fixing device of sofa iron frame.

[0003] The adjustable fixing device of existing sofa iron frame cannot effectively improve the stability of device adjustment fixing use angle when operating, simultaneously cannot effectively improve the comfort degree of device use, therefore urgently needs a kind of adjustable fixing device of sofa iron frame. UTILITY MODEL CONTENT

[0004] Therefore, the utility model aims at providing a kind of adjustable fixing device of sofa iron frame to solve the problem that the adjustable fixing device of existing sofa iron frame cannot effectively improve the stability of device adjustment fixing use angle when using, simultaneously cannot effectively improve the comfort degree of device use.

[0005] To realize the above-mentioned purpose, the utility model provides the following technical scheme: a kind of adjustable fixing device of sofa iron frame, including base seat, the base seat outer end is equipped with backrest frame, the backrest frame middle end is equipped with the hole of bearing, the backrest frame lower end is equipped with the hole of supporting leg, the hole of supporting leg inner end is equipped with extension supporting leg, the extension supporting leg one end is equipped with the foot limit shaft, the base seat one end is equipped with the limit rod sliding slot, the backrest frame one end is equipped with the limit bolt slot, the limit bolt slot inner end is equipped with the bolt spring of top, the bolt spring of top front end is equipped with the fixed position bolt.

[0006] The backrest frame middle end is equipped with the hole of bearing, the hole of bearing middle end is equipped with headrest frame, the headrest frame one end is equipped with the block of clamping frame, the block of clamping frame rear end is equipped with the spring of top block, the base seat inner end is equipped with the plate slot, the plate slot inner end is equipped with the leg plate.

[0007] Preferably, the backrest frame is rotated with the base seat through the hole of bearing, and the extension supporting leg is slid with the backrest frame through the hole of supporting leg.

[0008] Preferably, the backrest frame is rotatably connected with the base frame seat through the foot connecting limiting shaft, and the foot connecting limiting shaft is slidably connected with the base frame seat through the limiting rod sliding groove.

[0009] Preferably, the positioning bolt is telescopically connected with the backrest frame through the top bolt spring, and the extension supporting leg is clampedly connected with the backrest frame through the positioning bolt.

[0010] Preferably, the headrest frame is slidably connected with the backrest frame through the supporting rod sliding hole, and the clamping frame block is telescopically connected with the backrest frame through the top block spring.

[0011] Preferably, the headrest frame is clampedly connected with the backrest frame through the clamping frame block, and one end of the headrest frame is provided in a hole type.

[0012] Preferably, the supporting leg plate is slidably connected with the base frame seat through the placing plate groove, and the lower end surface of the supporting leg plate is provided in an anti-skid type.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] 1、The utility model discloses a base frame seat, a backrest frame, an extension supporting leg, a foot connecting limiting shaft, a top bolt spring and a positioning bolt are set, and the backrest frame is rotated on the base frame seat through the bearing hole according to the use demand, the use angle of the backrest frame is adjusted, the extension supporting leg is extended in the supporting leg hole at this moment, and the extension supporting leg on the other side is driven to move and extend in the limiting rod sliding groove on the foot connecting limiting shaft, and the positioning bolt is moved forward in the limiting bolt groove to the clamping with the extension supporting leg through the action force of the top bolt spring, so that the use angle of the backrest frame is fixed and adjusted, and the stability of the device adjusting and fixing the use angle is improved.

[0015] 2、The utility model discloses a base frame seat, a headrest frame, a clamping frame block and a supporting leg plate are set, the headrest frame is moved upward in the supporting rod sliding hole to the height suitable for the pillow leaning, the clamping frame block is clamped and fixed with the headrest frame through the action force of the top block spring, and the length of the supporting leg plate extending out of the base frame seat is adjusted through the operation of drawing outwards in the placing plate groove, so that the leg of the user is supported, and the comfort degree of the device using is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the front view three-dimensional structure schematic diagram of the utility model;

[0017] Figure 2 It is the structure schematic diagram of the utility model cutaway;

[0018] Figure 3 It is the enlarged structure schematic diagram of the backrest frame of the utility model;

[0019] Figure 4 It is the utility model Figure 2An enlarged structural schematic view at position A in the middle;

[0020] Figure 5 For the utility model Figure 2 An enlarged structural schematic view at position B in the middle.

[0021] In the figure: 1, base seat; 2, backrest frame; 3, bearing hole; 4, foot hole; 5, extension foot; 6, connecting foot limiting shaft; 7, limiting bolt slot; 8, top bolt spring; 9, positioning bolt; 10, bearing rod sliding hole; 11, headrest frame; 12, clamping frame block; 13, top block spring; 14, placement plate slot; 15, support leg plate; 16, limiting rod sliding groove. DETAILED DESCRIPTION

[0022] The technical solutions 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. The embodiments described below with reference to the drawings are exemplary and are used only for explaining the utility model and cannot be understood as limiting the utility model.

[0023] The embodiments of the utility model will be described below according to the overall structure of the utility model.

[0024] Please refer to Figures 1-5 A adjustable fixing device of sofa iron frame, including base seat 1, base seat 1 outer end is equipped with backrest frame 2, backrest frame 2 middle end is equipped with bearing hole 3, backrest frame 2 lower end is equipped with foot hole 4, foot hole 4 inner end is equipped with extension foot 5, extension foot 5 one end is equipped with connecting foot limiting shaft 6, base seat 1 one end is equipped with limiting rod sliding groove 16, backrest frame 2 one end is equipped with limiting bolt slot 7, limiting bolt slot 7 inner end is equipped with top bolt spring 8, top bolt spring 8 front end is equipped with positioning bolt 9, backrest frame 2 passes through bearing hole 3 and base seat 1 constitutes rotary structure, and extension foot 5 passes through foot hole 4 and backrest frame 2 constitutes sliding structure, backrest frame 2 passes through connecting foot limiting shaft 6 and base seat 1 constitutes rotary structure, and connecting foot limiting shaft 6 passes through limiting rod sliding groove 16 and base seat 1 constitutes sliding structure, positioning bolt 9 passes through top bolt spring 8 and backrest frame 2 constitutes telescopic structure, and extension foot 5 passes through positioning bolt 9 and backrest frame 2 constitutes engagement connection, according to the use demand, backrest frame 2 is rotated on base seat 1 through bearing hole 3, adjusts the use angle of backrest frame 2, at this time, extension foot 5 is extended in foot hole 4, and is rotated on connecting foot limiting shaft 6, drives extension foot 5 on the other side to move and extend in limiting rod sliding groove 16, and positioning bolt 9 is moved forward in limiting bolt slot 7 to be engaged with extension foot 5 by the action of top bolt spring 8, to fix the use angle of backrest frame 2, improve the stability of device adjustment fixed use angle.

[0025] Please refer to Figures 1-5The adjustable fixing device of the sofa iron frame, the end of the backrest frame 2 is provided with a bearing rod sliding hole 10, the end of the bearing rod sliding hole 10 is provided with a headrest frame 11, one end of the headrest frame 11 is provided with a clamping block 12, the rear end of the clamping block 12 is provided with a top block spring 13, the inner end of the base frame seat 1 is provided with a placing plate groove 14, the inner end of the placing plate groove 14 is provided with a supporting leg plate 15, the headrest frame 11 and the backrest frame 2 form a sliding structure through the bearing rod sliding hole 10, and the clamping block 12 and the backrest frame 2 form an extension structure through the top block spring 13, the headrest frame 11 is clamped and connected with the backrest frame 2 through the clamping block 12, and one end of the headrest frame 11 is provided in a hole type, the supporting leg plate 15 and the base frame seat 1 form a sliding structure through the placing plate groove 14, and the lower end surface of the supporting leg plate 15 is provided in an anti-skid type, the headrest frame 11 is moved upwards in the bearing rod sliding hole 10 to a height suitable for pillow leaning, the clamping block 12 is clamped and fixed with the headrest frame 11 through the action force of the top block spring 13, and the length of the supporting leg plate 15 extending out of the base frame seat 1 is adjusted to support the legs of a user through the operation of pulling outwards of the supporting leg plate 15 in the placing plate groove 14, so that the comfort of the device is doubled.

[0026] Working principle: when in use, the backrest frame 2 is rotated on the base frame seat 1 through the bearing hole 3 according to the use requirement, the use angle of the backrest frame 2 is adjusted, the extension supporting leg 5 is extended in the supporting leg hole 4 and rotated on the connecting leg limiting shaft 6 to drive the other extension supporting leg 5 to move and extend in the limiting rod sliding groove 16, and the positioning bolt 9 is moved forward in the limiting bolt groove 7 to be clamped with the extension supporting leg 5 through the action force of the top bolt spring 8, so as to fix and adjust the use angle of the backrest frame 2, the headrest frame 11 can be moved upwards in the bearing rod sliding hole 10 to a height suitable for pillow leaning, the clamping block 12 is clamped and fixed with the headrest frame 11 through the action force of the top block spring 13, and the length of the supporting leg plate 15 extending out of the base frame seat 1 is adjusted to support the legs of a user through the operation of pulling outwards of the supporting leg plate 15 in the placing plate groove 14, and the bottom of the supporting leg plate 15 is provided in an anti-skid type and will not slide without pulling force, so that the use process of the device is completed, and the contents not described in detail in the specification belong to the prior art known by the person skilled in the art.

[0027] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An adjustable fixing device for a sofa frame, comprising a base (1), characterized in that: A backrest frame (2) is installed at the outer end of the base frame (1). A support hole (3) is opened in the middle of the backrest frame (2). A foot hole (4) is opened at the lower end of the backrest frame (2). An extension foot (5) is installed at the inner end of the foot hole (4). A foot limiting shaft (6) is installed at one end of the extension foot (5). A rod limiting groove (16) is opened at one end of the base frame (1). A bolt limiting groove (7) is opened at one end of the backrest frame (2). A top bolt spring (8) is installed at the inner end of the bolt limiting groove (7). A positioning bolt (9) is installed at the front end of the top bolt spring (8). The backrest frame (2) has a support rod sliding hole (10) in the middle, and a headrest frame (11) is installed in the middle of the support rod sliding hole (10). A bracket block (12) is installed at one end of the headrest frame (11), and a top block spring (13) is installed at the rear end of the bracket block (12). A plate groove (14) is opened in the inner end of the base frame (1), and a support leg plate (15) is installed in the inner end of the plate groove (14).

2. The adjustable fixing device for a sofa frame according to claim 1, characterized in that: The backrest frame (2) forms a rotating structure with the base frame (1) through the support hole (3), and the extended support leg (5) forms a sliding structure with the backrest frame (2) through the support leg hole (4).

3. The adjustable fixing device for a sofa frame according to claim 1, characterized in that: The backrest frame (2) forms a rotating structure with the base frame (1) through the foot limiting shaft (6), and the foot limiting shaft (6) forms a sliding structure with the base frame (1) through the limiting rod slide groove (16).

4. The adjustable fixing device for a sofa frame according to claim 1, characterized in that: The positioning bolt (9) forms a telescopic structure with the backrest frame (2) through the top bolt spring (8), and the extension leg (5) forms a snap-fit ​​connection with the backrest frame (2) through the positioning bolt (9).

5. The adjustable fixing device for a sofa frame according to claim 1, characterized in that: The headrest frame (11) forms a sliding structure with the backrest frame (2) through the support rod sliding hole (10), and the bracket block (12) forms a telescopic structure with the backrest frame (2) through the top block spring (13).

6. The adjustable fixing device for a sofa frame according to claim 1, characterized in that: The headrest frame (11) is engaged with the backrest frame (2) via a clip block (12), and one end of the headrest frame (11) is an open type.

7. The adjustable fixing device for a sofa frame according to claim 1, characterized in that: The leg plate (15) forms a sliding structure with the base frame (1) through the plate groove (14), and the lower surface of the leg plate (15) is anti-slip.

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