CN220423513U - Anti-pinch device of folding accompanying chair - Google Patents

Abstract

The utility model relates to a hand clamping prevention device of a folding accompanying chair, which comprises a first chair back, a second chair back, a first clamping prevention pipe and a second clamping prevention pipe, wherein a first fixing frame and a second fixing frame are fixedly arranged at the lower sides of the first chair back and the second chair back, the first fixing frame is rotationally connected with the second fixing frame, the first clamping prevention pipe and the second clamping prevention pipe are fixedly connected in the length direction, a first rotating shaft is rotationally connected at one side of the first fixing frame, a second rotating shaft is rotationally connected at one side of the second fixing frame, the first rotating shaft and the second rotating shaft are respectively rotationally arranged in the first clamping prevention pipe and the second clamping prevention pipe, and the sum of the outer diameters of the first clamping prevention pipe and the second clamping prevention pipe is larger than the interval between the first chair back and the second chair back when the first chair back and the second chair back are horizontally arranged. In the middle of the whole process of putting the first chair back and the second chair back flat or folding, the two anti-pinch pipes are arranged between the two fixing frames, so that gaps are not generated in the whole process, and the occurrence of pinch accidents is avoided.

Description

Anti-pinch device of folding accompanying chair

Technical Field

The utility model belongs to the technical field of accompanying facilities, and particularly relates to an anti-pinch device of a folding accompanying chair.

Background

The utility model provides a chair is attended to, the chair is attended to the folding medical ward patient family members that attends to that will hang the hook when using and take on the sick bed, can put under the sick bed when not using or lean on to put the wall limit, have simple structure, compactness, convenient to use etc. advantages, but current chair is attended to has a potential safety hazard that presss from both sides the finger, the chair is attended to has three back, the downside of back is fixed with the back fixed frame, two adjacent back fixed frames pass through rotation axis connection, the head is collapsible with the back in the middle, there is the gap in the junction of these two back, when the chair is attended to in the seat state, but when putting down with the back, if with the finger carelessly stretch into this gap in, this gap can reduce gradually at the in-process that the back continues to fall down, take place to press from both sides the accident easily.

As shown in fig. 1, the prior art sets the anti-pinch tube between the first fixing frame 3 and the second fixing frame 4, so that the anti-pinch tube blocks the gap to avoid the pinching event, but the following problems are also present: the first fixed frame 3 and the second fixed frame 4 are rectangular frames formed by bending steel pipes, and because the rectangular frames are formed by bending, round corners are inevitably formed at four corners of the fixed frames, and the conventional anti-pinch pipe can only shield gaps at straight cross beams of the fixed frames, and gaps between the round corners of the two fixed frames still exist or pinch events can occur.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, and provides a hand clamping prevention device of a folding accompanying chair, which prevents medical staff or a user from extending hands into a gap between a first chair back and a second chair back, and improves the use safety of the accompanying chair.

The technical scheme adopted by the utility model for realizing the purposes is as follows: the utility model provides a folding hand clamping prevention device who accompanies chair, includes first back of the chair and second back of the chair, first back of the chair with the second back of the chair rotates to be connected the fixed first fixed frame that is provided with of downside of first back of the chair the fixed second fixed frame that is provided with of downside of second back of the chair, first fixed frame with the fixed frame rotation of second is connected, its characterized in that: the anti-pinch device comprises a first anti-pinch pipe, a second anti-pinch pipe, a first rotating shaft, a second rotating shaft, a first anti-pinch pipe and a second anti-pinch pipe, wherein the first anti-pinch pipe and the second anti-pinch pipe are fixedly connected along the length direction, one side of the first fixed frame, which is close to the second fixed frame, is rotationally connected with the first rotating shaft, one side of the second fixed frame, which is close to the first fixed frame, is rotationally connected with the second rotating shaft, the first rotating shaft is rotationally arranged in the first anti-pinch pipe, and the second rotating shaft is rotationally connected in the second anti-pinch pipe.

Preferably, the first fixed frame and the second fixed frame are rectangular frames with one open end, the first fixed frame is close to one open end of the second fixed frame, two ends of the first anti-pinch pipe are respectively connected with two side ends of the opening of the first fixed frame in a rotating mode, the second fixed frame is close to one side opening of the first fixed frame in a setting mode, and two ends of the second anti-pinch pipe are respectively connected with two side ends of the opening of the second fixed frame in a rotating mode.

Preferably, first fixing pieces are fixedly arranged at two ends of one side, close to the second fixing frame, of the first fixing frame, and the first rotating shaft is rotatably arranged between the two first fixing pieces; the second fixing pieces are fixedly arranged at two ends of one side, close to the first fixing frame, of the second fixing frame, and the second rotating shaft is rotatably arranged between the two second fixing pieces.

Preferably, the first anti-pinch tube and the second anti-pinch tube are fixedly welded along the length direction.

Preferably, support legs are arranged on the lower sides of the first anti-pinch pipe and the second anti-pinch pipe, the upper ends of the support legs are rotationally connected to the lower sides of the first anti-pinch pipe and the second anti-pinch pipe, and the support legs are connected with support fixing pieces.

Preferably, the support fixing piece is a tensioning rope, the support rods are fixedly arranged on the first fixing frame and the second fixing frame, the support legs are arranged two along the length direction of the first anti-pinch tube and the second anti-pinch tube, a transverse strut is arranged between the two support legs, one end of the tensioning rope is fixedly connected to one support rod, and the other end of the tensioning rope bypasses from the lower side of the transverse strut and is fixedly connected to the other support rod.

Preferably, the outer diameter of the first anti-pinch tube is the same as the outer diameter and the length of the second anti-pinch tube.

Preferably, the sum of the outer diameters of the first anti-pinch pipe and the second anti-pinch pipe is larger than the interval length between the first chair back and the second chair back when the first chair back and the second chair back are flatly placed.

Compared with the prior art, the technical scheme has the following beneficial effects:

1. according to the utility model, the first chair back and the second chair back are rotationally connected through the two rotating shafts, the anti-pinch pipes are arranged outside the rotating shafts and are fixedly arranged together, the first anti-pinch pipe and the second anti-pinch pipe are tightly arranged in a gap between the first chair back and the second chair back, and the two anti-pinch pipes are arranged between the two fixing frames in the whole process of flattening or folding the first chair back and the second chair back, so that no gap is generated in the whole process, and therefore, a patient or accompanying personnel is prevented from extending fingers into the gap between the first chair back and the second chair back, and pinch accidents are avoided.

2. The first fixed frame and the second fixed frame are all provided with openings, the first clamping prevention pipe and the second clamping prevention pipe are used for replacing the cross bars at the openings of the two fixed frames, so that the distance between the first chair back and the second chair back is shortened when the hands are prevented from being clamped, and the use of accompanying personnel is more comfortable.

3. The lower extreme at first prevent pressing from both sides pipe and second prevent pressing from both sides the pipe and be provided with the supporting leg, support on the ground when accompanying and attending to the chair and put on flat, take-up rope will take up fixed supporting leg, make accompanying and attending to the chair and put on flat time more firm.

Drawings

Fig. 1 is a schematic view of a prior art anti-pinch device.

FIG. 2 is a top view of the first and second seat backs.

Figure 3 is a side view of the first seatback and the second seatback folding process.

Fig. 4 is a schematic structural view of a first seatback and a second seatback with support legs.

Fig. 5 is a schematic view of another side structure of the first seat back and the second seat back with support legs.

Fig. 6 is a schematic structural view of the second seatback and the seat plate.

Wherein: 1. the seat comprises a first seat back 2, a second seat back 3, a first fixing frame 4, a second fixing frame 5, a first anti-pinch pipe 6, a second anti-pinch pipe 7, a first rotating shaft 8, a second rotating shaft 9, a first fixing piece 10, a second fixing piece 11, a supporting rod 12, supporting legs 13, a transverse strut 14, a tensioning rope 15, a seat 16, a seat fixing frame 17, a first shaft sleeve 18, a rotating shaft 19 and a second shaft sleeve.

Detailed Description

Fig. 2 to 6 are diagrams illustrating preferred embodiments of the present utility model, and the present utility model is further described below with reference to fig. 2 to 6.

As shown in fig. 2-3, the anti-pinch device of the folding accompanying chair comprises a first chair back 1 and a second chair back 2, wherein the first chair back 1 is rotationally connected with the second chair back 2, a first fixing frame 3 is fixedly arranged on the lower side of the first chair back 1, a second fixing frame 4 is fixedly arranged on the lower side of the second chair back 2, the first fixing frame 3 is rotationally connected with the second fixing frame 4, the anti-pinch device further comprises a first anti-pinch pipe 5 and a second anti-pinch pipe 6, the first anti-pinch pipe 5 and the second anti-pinch pipe 6 are fixedly connected along the length direction, a first rotating shaft 7 is rotationally connected to one side of the first fixing frame 3, which is close to the second fixing frame 4, of the second fixing frame 4, a second rotating shaft 8 is rotationally connected to one side of the second fixing frame 3, the first rotating shaft 7 is rotationally arranged in the first anti-pinch pipe 5, the second rotating shaft 8 is rotationally connected to the second anti-pinch pipe 6, the sum of the outer diameters of the first anti-pinch pipe 5 and the second anti-pinch pipe 6 is larger than the length of the first chair back 1 and the second chair back 2, when the first chair back 1 and the second chair back 2 are flatly placed, the first anti-pinch pipe and the second chair back 1 and the second chair back 2 are prevented from being clamped by a medical person from being in a gap, or the gap between the first patient and the patient can not be prevented from being injured, and the patient can be prevented from being folded, and the anti-pinch device is prevented from being stretched by the first back and back seat back 2 and the chair.

In this embodiment, the first fixing frame 3 is close to the opening at one end of the second fixing frame 4, the second fixing frame 4 is close to the opening at one side of the first fixing frame 3, the first fixing pieces 9 are fixedly arranged on the fixing frames at two sides of the opening end of the first fixing frame 3, the first fixing pieces 9 are provided with shaft holes, the first rotating shaft 7 is rotationally connected to the first fixing pieces 9 at two sides, the second fixing pieces 10 are fixedly arranged on the fixing frames at two sides of the opening end of the second fixing frame 4, shaft holes are also arranged on the second fixing pieces 10, the second rotating shaft 8 is rotationally arranged between the two second fixing pieces 10, the length and the outer diameters of the first anti-pinch pipe 5 and the second anti-pinch pipe 6 are identical, and the first anti-pinch pipe 5 and the second anti-pinch pipe 6 are fixedly welded, so that gaps can not be generated between the first anti-pinch pipe 5 and the second anti-pinch pipe 6.

The first clamp prevention pipe 5 is sleeved outside the first rotating shaft 7, the second clamp prevention pipe 6 is fixedly sleeved outside the second rotating shaft 8, two ends of the first clamp prevention pipe 5 are respectively arranged at two side openings of the first fixed frame 3, two ends of the second clamp prevention pipe 6 are respectively arranged at two side openings of the second fixed frame 4, even if the first clamp prevention pipe 5 and the second clamp prevention pipe 6 replace a cross rod on an original fixed frame, the first fixed frame 3 and the first clamp prevention pipe 5 form a rectangular frame, the first chair back 1 is arranged at the middle parts of the first fixed frame 3 and the first clamp prevention pipe 5, the second fixed frame 4 and the second clamp prevention pipe 6 form a rectangular frame, the second chair back 2 is arranged at the middle parts of the second fixed frame 4 and the second clamp prevention pipe 6, and therefore, the distance between the first chair back 1 and the second chair back 2 is shortened when a hand is prevented, and a chair back of a person is more comfortable when in use.

When the accompanying chair is folded, the first chair back 1 and the second chair back 2 are lifted upwards from the middle connection part, the first chair back 1 is folded downwards around the first rotating shaft 7, the second chair back 2 is folded downwards around the second rotating shaft 8, and in the folding process, the first anti-pinch pipe 5 and the second anti-pinch pipe 6 are always shielded between the first chair back 1 and the second chair back 2, so that a gap is not generated between the first chair back 1 and the second chair back 2; when the accompanying chair is laid down, the first chair back 1 and the second chair back 2 are downwards pressed from the middle connection part, the first chair back 1 is upwards folded around the first rotating shaft 7, the second chair back 2 is upwards folded around the second rotating shaft 8, gaps are not generated in the laying process, and the occurrence of clamping injury events is avoided.

As shown in fig. 4 to 5, the lower sides of the first anti-pinch tube 5 and the second anti-pinch tube 6 are provided with supporting legs 12, the upper ends of the supporting legs 12 are rotationally connected to the lower sides of the first anti-pinch tube 5 and the second anti-pinch tube 6, the supporting legs 12 are provided with two supporting fixing pieces along the length direction of the anti-pinch tube, the supporting legs 12 are further connected with supporting fixing pieces, after the first chair back 1 and the second chair back 2 are put flat, the supporting legs 12 are supported on the ground, a supporting force is added between the first chair back 1 and the second chair back 2, so that the accompanying chair is more stable after being put flat, the chair is more comfortable to use, the supporting legs 12 are further provided with supporting fixing pieces, and after the supporting legs 12 are supported on the ground, the supporting fixing pieces fix the supporting legs 12 so that the chair back 12 does not shake.

In this embodiment, the support fixing members are tightening ropes 14, the support rods 11 are fixedly arranged on the first fixing frame 3 and the second fixing frame 4, the transverse direction refers to the width direction of the accompanying chair, the transverse support 13 is fixedly arranged between the two support legs 12, one end of each tightening rope 14 is fixedly connected to one support rod 11, the other end of each tightening rope is wound around the lower portion of the corresponding transverse support 13 and is fixedly connected to the other support rod 11, when the first chair back 1 and the second chair back 2 are placed on the same side, the distance between the two support rods 11 is longest, two ends of each tightening rope 14 are tightened by the two support rods 11, and after the tightening ropes 14 are wound below the transverse support 13, an upward tightening force is generated on the transverse support 13, so that the support legs 12 cannot shake, and the tightening ropes 14 can be wound around the transverse support rods 13 and then fixed to the support rods 11 at the other end. When the accompanying chair is folded, the distance between the two support rods 11 is shortened, the tight tightening rope 14 is loosened, and the support legs 12 are rotatably arranged between the first chair back 1 and the second chair back 2.

As shown in fig. 6, the accompanying chair further comprises a seat 15 in addition to the first chair back 1 and the second chair back 2, the seat 15 is a chair of the accompanying chair when the accompanying chair is folded, the seat 15 is also rotatably connected with the second chair back 2, a gap between the seat 15 and the second chair back 2 is small, a clamping event is generally avoided, but fingers of a child are small, so that the accompanying chair has a certain potential safety hazard for the child. The seat 15 fixing frame is arranged on the lower side of the seat 15, the seat 15 fixing frame is hinged with the second fixing frame 4 through a rotating shaft 18 and a shaft sleeve, the rotating shaft 18 is fixedly arranged on the second fixing frame 4, the middle part of the rotating shaft 18 is fixedly welded on the second fixing frame 4, the diameters of two ends of the rotating shaft 18 are smaller, the seat 15 fixing frame is provided with a first shaft sleeve 17 and a second shaft sleeve 19, the two ends of the rotating shaft 18 are rotationally connected in the first shaft sleeve 17 and the second shaft sleeve 19, in the embodiment, the first shaft sleeve 17, the second shaft sleeve 19 and the rotating shaft 18 are sequentially in butt joint with the seat 15 fixing frame along the second fixing frame 4, the total length is the same as the width of the accompanying chair, each bearing shields a small gap between the whole second fixing frame 4 and the seat 15 fixing frame, a clamping event is avoided, a round angle is formed at the joint of the cross beams and the longitudinal beams at the two ends of the fixing frame, the gap between the two fixing frames is larger, the bearings at the two ends extend to two sides, the two ends of the round angle are respectively, the place with the small inner side gap is shielded, and the clamping event is prevented from happening at the place.

When the nursing chair is used, when the nursing chair is unfolded, the first chair back 1 and the second chair back 2 are pressed downwards, the first chair back 1 is folded upwards around the first rotating shaft 7, the second chair back 2 is folded upwards around the second rotating shaft 8, the first anti-pinch pipe 5 and the second anti-pinch pipe 6 are always shielded in a gap between the first chair back 1 and the second chair back 2 in the whole unfolding process, and when the nursing chair is folded, the first anti-pinch pipe 5 and the second anti-pinch pipe 6 are also always shielded in the gap between the first chair back 1 and the second chair back 2, and no gap exists in the whole unfolding process, so that the occurrence of pinch injury caused by extending hands of patients or medical staff into the gap is avoided; when the second chair back 2 and the seat plate 15 are placed and folded, the total length of the rotating shaft 18 and the bearing is the same as the width of the accompanying chair, and a small gap between the second chair back 2 and the seat plate 15 is also shielded, so that the occurrence of a clamping injury event is avoided, and the use safety of the accompanying chair is improved; the supporting legs 12 are arranged below the first chair back 1 and the second chair back 2, and after the accompanying chair is put flat, the supporting legs 12 are supported below the first chair back 1 and the second chair back 2, so that the accompanying chair is more stable, and the comfort and safety of the use of the accompanying chair are improved.

The above description is only a preferred embodiment of the present utility model, and is not intended to limit the utility model in any way, and any person skilled in the art may make modifications or alterations to the disclosed technical content to the equivalent embodiments. However, any simple modification, equivalent variation and variation of the above embodiments according to the technical substance of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims (8)

1. The utility model provides a prevent tong device of folding chair of accompanying and attending to, includes first back of the chair (1) and second back of the chair (2), first back of the chair (1) with second back of the chair (2) rotate and are connected the downside of first back of the chair (1) is fixed to be provided with first fixed frame (3) the downside of second back of the chair (2) is fixed to be provided with second fixed frame (4), first fixed frame (3) with second fixed frame (4) rotate and are connected, its characterized in that: still include first anti-pinch pipe (5) and second anti-pinch pipe (6), first anti-pinch pipe (5) and second anti-pinch pipe (6) are along length direction fixed connection first fixed frame (3) are close to one side rotation of second fixed frame (4) and are connected with first axis of rotation (7) one side rotation that second fixed frame (4) are close to first fixed frame (3) is connected with second axis of rotation (8), first axis of rotation (7) rotate and set up in first anti-pinch pipe (5), second axis of rotation (8) rotate and connect in second anti-pinch pipe (6).

2. The anti-pinch device of a folding accompanying chair as in claim 1, wherein: the utility model discloses a fixed frame of first fixed frame (3) and second fixed frame (4) are one end open-ended rectangle frame, the one end opening that first fixed frame (3) is close to second fixed frame (4) sets up, the both ends of first anti-pinch tube (5) rotate respectively and connect the both sides tip at first fixed frame (3) opening part, one side opening setting that second fixed frame (4) is close to first fixed frame (3), the both ends of second anti-pinch tube (6) rotate respectively and connect the both sides tip at second fixed frame (4) opening part.

3. The anti-pinch device of a folding accompanying chair as in claim 1, wherein: the two ends of the first fixing frame (3) close to one side of the second fixing frame (4) are fixedly provided with first fixing pieces (9), and the first rotating shaft (7) is rotatably arranged between the two first fixing pieces (9); the two ends of the second fixing frame (4) close to one side of the first fixing frame (3) are fixedly provided with second fixing pieces (10), and the second rotating shaft (8) is rotatably arranged between the two second fixing pieces (10).

4. The anti-pinch device of a folding accompanying chair as in claim 1, wherein: the first anti-pinch pipe (5) and the second anti-pinch pipe (6) are fixedly welded along the length direction.

5. The anti-pinch device of a folding accompanying chair as in claim 1, wherein: the anti-pinch device is characterized in that supporting legs (12) are arranged on the lower sides of the first anti-pinch tube (5) and the second anti-pinch tube (6), the upper ends of the supporting legs (12) are rotationally connected to the lower sides of the first anti-pinch tube (5) and the second anti-pinch tube (6), and the supporting legs (12) are connected with supporting fixing pieces.

6. The anti-pinch device of a folding chair of claim 5, wherein: the support fixing piece is a tensioning rope (14), support rods (11) are fixedly arranged on the first fixing frame (3) and the second fixing frame (4), two support legs (12) are arranged along the length direction of the first anti-clamping pipe (5) and the second anti-clamping pipe (6), a transverse strut (13) is arranged between the two support legs (12), one end of the tensioning rope (14) is fixedly connected to one support rod (11), and the other end of the tensioning rope bypasses the lower portion of the transverse strut (13) and is fixedly connected to the other support rod (11).

7. The anti-pinch device of a folding accompanying chair as in claim 1, wherein: the outer diameter of the first anti-pinch pipe (5) is the same as the outer diameter and the length of the second anti-pinch pipe (6).

8. The anti-pinch device of a folding accompanying chair as in claim 1, wherein: the sum of the outer diameters of the first anti-pinch pipe (5) and the second anti-pinch pipe (6) is larger than the interval length between the first chair back (1) and the second chair back (2) when the first chair back (1) and the second chair back (2) are horizontally placed.