CN113142766A - Walking stick chair - Google Patents

Abstract

The invention discloses a crutch chair, which comprises a supporting rod, a connecting device, a first supporting leg, a second supporting leg, a first connecting rod, a second connecting rod, a seat and a folding mechanism, wherein the supporting rod is arranged on the connecting device; the connecting device is arranged at the upper end of the supporting rod in a sliding manner; the first supporting leg and the second supporting leg are respectively pivoted with the connecting device; one end of the first connecting rod is pivoted with the lower end of the supporting rod, and the other end of the first connecting rod is pivoted with the first supporting leg; one end of the second connecting rod is pivoted with the lower end of the supporting rod, and the other end of the second connecting rod is pivoted with the second supporting leg; one end of the seat is pivoted with the connecting device, and the folding mechanism is connected between the supporting rod and the seat. The walking stick chair can be opened or folded, is simple to operate and is convenient to use and carry.

Description

Walking stick chair

Technical Field

The invention relates to a crutch, in particular to a crutch chair which can be opened or folded, is simple to operate and is convenient to use and carry.

Background

The existing crutch generally only has one supporting rod, and only one limb of a user can be supported on the ground when the crutch is used, so that a person with inconvenient movement can walk by means of the crutch, but when the person stops to have a rest, the crutch is not needed to be used, but a seat is needed to sit down; the traditional crutch has a single function, and for those people with inconvenient actions, the crutch and the chair cannot be carried simultaneously when going out, so that the requirements of users cannot be met.

Disclosure of Invention

The invention aims to provide a crutch chair which can be opened or folded, is simple to operate and is convenient to use and carry.

In order to achieve the above object, the invention provides a crutch chair comprising a support rod, a connecting device, a first support leg, a second support leg, a first connecting rod, a second connecting rod, a seat and a folding mechanism; the connecting device is arranged at the upper end of the supporting rod in a sliding manner; the first supporting leg and the second supporting leg are respectively pivoted with the connecting device; one end of the first connecting rod is pivoted with the lower end of the supporting rod, and the other end of the first connecting rod is pivoted with the first supporting leg; one end of the second connecting rod is pivoted with the lower end of the supporting rod, and the other end of the second connecting rod is pivoted with the second supporting leg; one end of the seat is pivoted with the connecting device, and the folding mechanism is connected between the supporting rod and the seat.

Compared with the prior art, the crutch chair is supported by the connecting device arranged on the supporting rod in a sliding manner, the first supporting leg and the second supporting leg are pivoted with the connecting device, the first connecting rod is used for connecting the first supporting leg with the supporting rod, and the second connecting rod is used for connecting the second supporting leg with the supporting rod. The folding mechanism is used for connecting the seat, and the seat is pivoted to the connecting device, so that the seat can be supported on the supporting rod, and the purpose of sitting by a user is achieved; the connecting device, the first supporting leg, the second supporting leg, the first connecting rod, the second connecting rod, the seat and the folding mechanism are linked, so that the whole crutch chair can be folded or unfolded only by driving the connecting device, and the operation is very simple; and the foldable crutch can be used as a seat to sit when unfolded, can be used as a crutch when folded, is very convenient to use, has small volume after being folded, and is convenient to carry.

Preferably, the first connecting rod and the second connecting rod are both pivoted with fixing blocks, the fixing block on the first connecting rod is fixedly arranged on the first supporting leg, and the fixing block on the second connecting rod is fixedly arranged on the second supporting leg.

The first supporting leg and the second supporting leg are provided with positioning grooves capable of containing fixing blocks corresponding to the first supporting leg and the second supporting leg, and the fixing blocks on the first connecting rod and the second connecting rod are provided with U-shaped grooves. Therefore, when the first supporting leg and the second supporting leg are folded, the first connecting rod and the second connecting rod are respectively accommodated in the U-shaped groove, and the volume after folding is reduced.

Preferably, a limiting rope is connected between the first supporting leg and the second supporting leg. The limiting rope is arranged to prevent the first supporting leg and the second supporting leg from being opened excessively, and the supporting stability is guaranteed.

Preferably, the folding mechanism includes a connecting rod, one end of the connecting rod is pivoted to the supporting rod, and the other end is movably connected to the seat.

Specifically, the connecting rod is movably connected with the seat through a universal joint. The universal joint is used for connecting the connecting rod and the seat, so that the connecting rod and the seat can be smoothly folded, and the mechanical jamming caused by interference between the connecting rod and the seat is prevented.

Preferably, the support rod is fixedly provided with a fixing sleeve, and the first connecting rod, the second connecting rod and the folding mechanism are all connected to the fixing sleeve.

Preferably, the seat includes a main plate and two side plates, the two side plates are respectively pivoted to two sides of the main plate, and the folding mechanism is respectively connected to the two side plates to fold the side plates when folding. Therefore, the seat can be folded along with the folding mechanism when being folded, and the volume after being folded is further reduced.

Preferably, a connection locking device is arranged between the connecting device and the support rod, so that the connecting device is fixed relative to the support rod when the connecting device is locked, or the connecting device can slide relative to the support rod when the lock is released.

Preferably, the connection locking device includes a first seat, a second seat and an elastic element, the first seat and the second seat are slidably sleeved on the support rod, and the elastic element is disposed between the first seat and the second seat; the first base body is provided with a release part, and the second base body is provided with a locking part which can be locked with the support rod; when the first seat body is driven to slide, the first seat body can drive the locking part and the supporting rod to be unlocked through the locking releasing part, and then drive the second seat body to slide. . The crutch chair is characterized in that the first seat body is provided with a release part, the second seat body is provided with a locking part, and the elastic part is arranged between the first seat body and the second seat body, so that the release part on the first seat body can release the locking part on the second seat body when the first seat body is far away from the second seat body, and then the second seat body is driven to slide under the elastic action of the elastic part after the release is finished, thereby realizing the purpose of folding the crutch chair after unlocking.

Specifically, the middle part of the locking part is pivoted to the second seat body, the front end of the locking part is provided with a hook body, the rear end of the locking part is provided with a pressing part, and the lock releasing part is in sliding contact with the middle part of the locking part and the pressing part. Therefore, the hook body can be used for hooking the locking part during locking, and the purpose of locking is achieved; when the lock is released, the pressing part and the lock releasing part can be linked, so that the aim of unlocking is fulfilled; therefore, the first seat body can be unlocked only by sliding, and the operation is very simple and convenient.

A reset piece is arranged between the locking part and the second base body so as to drive the locking part to reset. The locking part can be automatically locked with the support rod through the reset piece.

Specifically, the elastic member is a compression spring, and the compression spring is compressed when the first seat slides in a direction away from the first seat.

Specifically, the both sides of first pedestal are equipped with the sleeve, the upper end both sides of second pedestal are equipped with the ear, compression spring's one end support press in the ear, the other end support press in telescopic interior bottom. The compression spring is arranged in the sleeve, so that the external influence can be prevented, and the stability of opening or folding the crutch chair can be ensured.

Specifically, a buckling part is arranged on the first seat body, a clamping part is arranged on the bottom surface of the seat, and the clamping part is buckled with the buckling part after the seat is folded. By arranging the clamping part and the buckling part, the walking stick chair can be locked in a folding state after being folded, so that the walking stick chair is prevented from being accidentally opened, and the folding stability is ensured.

Drawings

Fig. 1 is a perspective view of a walking stick chair of the present invention.

Fig. 2 is a side view of a walking stick chair of the present invention.

Fig. 3 is a left side view of the walking stick chair of the present invention.

Fig. 4 is a bottom view of the walking stick chair of the present invention.

Fig. 5 is a perspective view of the connection locking device of the walking stick chair of the present invention when locked.

Fig. 6 is an exploded view of the attachment locking mechanism of the walking stick chair of the present invention.

Fig. 7 is a state view of the connection locking device of the walking stick chair according to the present invention when unlocked.

Fig. 8 is a cross-sectional view of the attachment locking device of the walking stick chair of the present invention taken along the axial direction of the support rod.

Fig. 9 is another cross-sectional view of the attachment lock mechanism of the walking stick chair of the present invention taken along the axial direction of the support pole.

Fig. 10 is a view showing the walking stick chair after the locking device is unlocked.

Fig. 11 is a semi-folded state diagram of each rod member when the walking stick chair of the present invention is folded.

FIG. 12 is a state view of the cane chair of the present invention after being folded.

Detailed Description

In order to explain technical contents, structural features, and effects achieved by the present invention in detail, the following detailed description is given with reference to the embodiments and the accompanying drawings.

As shown in fig. 1 to 4, the crutch chair 100 of the present invention includes a support rod 1, a connecting device 2, a first support leg 3, a second support leg 4, a first connecting rod 5, a second connecting rod 6, a seat 7 and a folding mechanism 8. The connecting device 2 is slidably arranged at the upper end of the support rod 1; the first supporting leg 3 and the second supporting leg 4 are respectively pivoted with the connecting device 2. One end of the first connecting rod 5 is pivoted with the lower end of the supporting rod 1, and the other end of the first connecting rod is pivoted with the first supporting leg 3. One end of the second connecting rod 6 is pivoted with the lower end of the supporting rod 1, and the other end of the second connecting rod is pivoted with the second supporting leg 4. The first connecting rod 5 and the second connecting rod 6 are arranged in a splayed shape. A limiting rope 9 is connected between the first supporting leg 3 and the second supporting leg 4. The limiting rope 9 is arranged to prevent the first supporting leg 3 and the second supporting leg 4 from being opened excessively, and the supporting stability is guaranteed. One end of the seat 7 is pivotally connected to the connecting device 2 at a pivot point a, and the folding mechanism 8 is connected between the supporting rod 1 and the seat 7. The support rod 1, the first support leg 3 and the second support leg 4 are not on the same plane, and form a triangular pyramid structure.

Please refer to fig. 1, fig. 3 and fig. 4, specifically, the following: the one end of first connecting rod 5 and second connecting rod 6 all the pin joint has fixed block 10, fixed block 10 has U type groove 101, the inboard of first supporting legs 3 and second supporting legs 4 is equipped with constant head tank 31, 41, fixed block 10 on the first connecting rod 5 set up fixedly in the constant head tank 31 of first supporting legs 3, fixed block 10 on the second connecting rod 6 set up fixedly in the constant head tank 41 of second supporting legs 4. When folded, the first connecting rod 5 is accommodated in the U-shaped groove 101 of the fixing block 10 connected to the first connecting rod, and the second connecting rod 6 is accommodated in the U-shaped groove 101 of the fixing block 10 connected to the second connecting rod. Therefore, when the first supporting leg 3 and the second supporting leg 4 are folded, the first connecting rod 5 and the second connecting rod 6 are respectively accommodated in the U-shaped groove, and the volume after folding is reduced.

The support rod 1 is fixedly provided with a fixed sleeve 11, the lower end of the fixed sleeve 11 is provided with two groups of first pivoting lugs 11a, the lower end of the first connecting rod 5 is pivoted with one group of first pivoting lugs 11a, and the lower end of the second connecting rod 6 is pivoted with the other group of first pivoting lugs 11 a.

Referring to fig. 4, the seat 7 includes a main plate 71 and two side plates 72, the two side plates 72 are respectively pivoted to two sides of the main plate 71, and the folding mechanism 8 is respectively connected to the two side plates 72 to fold the side plates 72. Thus, the seat 7 can be folded along with the folding mechanism 8, and the volume after folding can be further reduced. Specifically, the folding mechanism 8 is connected to the fixing sleeve 11. The folding mechanism 8 comprises a pair of connecting rods 81, and two sets of second pivot lugs 11b are arranged in the middle of the fixing sleeve 11. One end of one of the connecting rods 81 is pivotally connected to one of the second pivot lugs 11b, and the other end is movably connected to the bottom surface of the side plate 72 of the seat 7 through a universal joint 82. One end of the other connecting rod 81 is pivotally connected to the other second pivot ear 11b, and the other end is movably connected to the bottom surface of the other side plate 72 of the seat 7 through another universal joint 82. The two connecting rods 81 form a V-shaped structure with each other. By using the universal joint 82 to connect the connecting rod 81 and the seat 7, the connecting rod 81 and the seat 7 can be smoothly folded, and the mechanical jamming caused by interference between the two can be prevented.

As shown in fig. 2 to 4, a connection locking device 110 is disposed between the connection device 2 and the support rod 1 to fix the connection device 2 relative to the support rod 1 when locking or to enable the connection device 2 to slide relative to the support rod 1 when unlocking. The connection locking device 110 of the present invention is disposed on the connection device 2 and is locked or unlocked with the fixing sleeve 11 on the support bar 1. In particular, the method comprises the following steps of,

as shown in fig. 5 to 10, the connecting and locking device 110 includes a first seat 111, a second seat 112 and an elastic member 113, and the first supporting leg 3 and the second supporting leg 4 are pivotally connected to the second seat 112. The first seat 111 and the second seat 112 are slidably sleeved on the support rod 1, and the elastic member 113 is disposed between the first seat 111 and the second seat 112; the end of the main board 71 is pivotally connected to the middle of the first seat 111 through a pivot point a. The lower end of the first seat 111 has a lock releasing part 111a, and the second seat 112 has a locking part 1121 capable of locking with the support rod 1; when the first seat 111 is driven to slide, the first seat 111 can optionally drive the locking part 1121 to unlock the support rod 1 through the releasing part 111 a; and then drives the second seat 112 to slide. By arranging the unlocking portion 111a on the first seat 111, arranging the locking portion 1121 on the second seat 112, and arranging the elastic member 113 between the first seat 111 and the second seat 112, when the first seat 111 is far away from the second seat 112, the unlocking portion 111a on the first seat 111 can unlock the locking portion 1121 on the second seat 112, and then the second seat 112 is driven to slide under the elastic force of the elastic member 113 after unlocking is completed, so that the purpose of unlocking and then folding the crutch chair 100 is achieved, the structure is simple, only the first seat 111 needs to be operated, and the operation is convenient and fast.

Referring to fig. 5 to 8, specifically, the middle of the locking portion 1121 is pivoted to the second base 112, and a hook 1121a is disposed at the front end and a pressing portion 1121b is disposed at the rear end. The releasing portion 111a is a pressing piece, and the releasing portion 111a slidably abuts between the middle portion of the locking portion 1121 and the pressing portion 1121 b. The pressing portion 1121b is higher than a pressing surface of the unlocking portion 111a, and a sliding inclined surface is formed between the pressing portion 1121b and the middle portion of the locking portion 1121. One side of the upper end of the fixing sleeve 11 is provided with a locking hole 11 c. When locking, the hook 1121a is engaged with the locking hole 11c, and the releasing portion 111a is located at the middle of the locking portion 1121. Thus, the hook 1121a can be used for hooking the locking part 1121 during locking, so as to achieve the purpose of locking; when the lock is released, the releasing portion 111a slides onto the pressing portion 1121b along the sliding slope, and the releasing portion 111a presses the pressing portion 1121b, so that the hook body 1121a leaves the locking hole 11c, thereby achieving the purpose of unlocking; therefore, the first seat 111 can be unlocked only by sliding, and the operation is very simple and convenient. In addition, a reset piece 114 is disposed between the locking portion 1121 and the second seat 112 to actuate the locking portion 1121 to reset. The return member 114 is a compression spring. The locking part 1121 may be automatically locked with the support rod 1 by the reset member 114.

As shown in fig. 6 and 9, the elastic element 113 of the present invention is a compression spring, and the compression spring is compressed when the first seat 111 slides in a direction away from the first seat 111. Specifically, sleeves 111b are arranged on two sides of the first seat 111, ears 1122 are arranged on two sides of the upper end of the second seat 112, one end of the compression spring abuts against the ears 1122, and the other end of the compression spring abuts against the inner bottom of the sleeves 111 b. By placing the compression spring inside the sleeve 111b, external influences can be prevented, thereby ensuring the stability of the crutch chair 100 in opening or folding.

Referring to fig. 4, the connecting device 2 is provided with a fastening portion 21, and the fastening portion 21 is located on the lock releasing portion 111a of the first seat 111. An engaging portion 71 is provided on the bottom surface of the seat 7, the engaging portion 71 is an engaging hook, and the engaging portion 71 is engaged with the engaging portion 21 after the seat 7 is folded. By arranging the engaging portion 71 and the engaging portion 21, the walking stick chair 100 can be locked in a folded state after being folded, thereby preventing accidental opening and ensuring the stability of folding.

In combination with the above description and with reference to fig. 2, 11 and 12, the folding principle of the walking stick chair 100 of the present invention is described in detail as follows:

when folded, the first seat 111 is driven to move away from the second seat 112, so that the first seat 111 slides upwards along the supporting rod 1 and compresses the elastic member 113, and when the sliding starts, the second seat 112 does not move along with the first seat 111. The first seat 111 drives the releasing portion 111a to slide, so that the releasing portion 111a slides toward the pressing portion 1121b along the middle portion of the locking portion 1121, and the locking portion 1121 compresses the reset element 114 to rotate. The hook 1121a of the locking portion 1121 is disengaged from the locking hole 11 c. At this time, the elastic force of the compressed elastic member 113 is increased enough to drive the second seat 112 to slide upwards, so as to drive the locking portion 1121 away from the locking hole 11 c. At this point, the connection locking device 110 may unlock the entire crutch chair 100. When the first seat 111 is continuously driven to slide upwards, the first seat 111 drives the end of the main board 71 to move upwards, and simultaneously drives the first supporting leg 3, the second supporting leg 4, the first connecting rod 5 and the second connecting rod 6 to move. At this time, the first supporting leg 3, the second supporting leg 4, the first connecting rod 5 and the second connecting rod 6 are all folded toward the supporting bar 1. Meanwhile, the two connecting rods 81 and the seat 7 are also folded toward the supporting rod 1, and the two side plates 72 are folded at an angle of 90 degrees relative to the main plate 71. Finally, under the restoring force of the elastic element 113, the first seat 111 and the second seat 112 keep a certain distance, so that the releasing portion 111a returns to the middle position of the locking portion 1121; finally, the engaging portion 71 and the engaging portion 21 are engaged together, and the walking stick chair 100 can be completely folded.

When the crutch chair 100 is unfolded, the first seat 111 is driven to move away from the first seat 111, so that the first seat 111 slides upwards along the support rod 1 and compresses the elastic member 113, the first seat 111 drives the release portion 111a to move, and the buckling portion 21 can be disengaged from the engaging portion 71. At this time, the first seat 111 can be driven to slide downwards along the support rod 1, and the first seat 111 drives the second seat 112 to move downwards, so as to drive the first support leg 3, the second support leg 4, the first connecting rod 5 and the second connecting rod 6 to move, so that the first support leg 3, the second support leg 4, the first connecting rod 5 and the second connecting rod 6 are unfolded relative to the support rod 1. Meanwhile, the first seat 111 drives the end of the seat 7 to move, so that the seat 7 and the connecting rod 81 are unfolded relative to the supporting rod 1, and the two side plates 72 are opened relative to the main plate 71. Finally, the hook 1121a of the locking portion 1121 is engaged with the locking hole 11c, so that the crutch chair 100 is in a fully unfolded and locked state.

Compared with the prior art, the connecting device 2 is arranged on the support rod 1 in a sliding manner, the first support leg 3 and the second support leg 4 are pivoted with the connecting device 2, the first connecting rod 5 is used for connecting the first support leg 3 with the support rod 1, and the second connecting rod 6 is used for connecting the second support leg 4 with the support rod 1, so that a triangular conical support frame is formed among the support rod 1, the first support leg 3 and the second support leg 4, and the purpose of supporting the crutch chair 100 is achieved. The folding mechanism 8 is used for connecting the seat 7, and the seat 7 is pivoted to the connecting device 2, so that the seat 7 can be supported on the supporting rod 1 to achieve the purpose of sitting for a user; the connecting device 2, the first supporting leg 3, the second supporting leg 4, the first connecting rod 5, the second connecting rod 6, the seat 7 and the folding mechanism 8 are linked, so that the whole walking stick chair 100 can be folded or unfolded only by driving the connecting device 2, and the operation is very simple; moreover, the folding crutch can be used as a seat 7 for sitting when unfolded and can be used as a crutch when folded, so that the folding crutch is very convenient to use, has small volume after being folded and is convenient to carry.

The above disclosure is only a preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the present invention, which is therefore intended to cover all equivalent changes and modifications within the scope of the present invention.

Claims (15)

1. A crutch chair is characterized in that: comprises a support rod, a connecting device, a first support leg, a second support leg, a first connecting rod, a second connecting rod, a seat and a folding mechanism; the connecting device is arranged at the upper end of the supporting rod in a sliding manner; the first supporting leg and the second supporting leg are respectively pivoted with the connecting device; one end of the first connecting rod is pivoted with the lower end of the supporting rod, and the other end of the first connecting rod is pivoted with the first supporting leg; one end of the second connecting rod is pivoted with the lower end of the supporting rod, and the other end of the second connecting rod is pivoted with the second supporting leg; one end of the seat is pivoted with the connecting device, and the folding mechanism is connected between the supporting rod and the seat.

2. The crutch chair of claim 1 wherein: the first connecting rod and the second connecting rod are both pivoted with fixing blocks, the fixing blocks on the first connecting rod are fixedly arranged on the first supporting legs, and the fixing blocks on the second connecting rod are fixedly arranged on the second supporting legs.

3. The crutch chair of claim 2 wherein: the first supporting leg and the second supporting leg are provided with positioning grooves capable of containing fixing blocks corresponding to the first supporting leg and the second supporting leg, and the fixing blocks on the first connecting rod and the second connecting rod are provided with U-shaped grooves.

4. The crutch chair of claim 1 wherein: a limiting rope is connected between the first supporting leg and the second supporting leg.

5. The crutch chair of claim 1 wherein: the folding mechanism comprises a connecting rod, one end of the connecting rod is pivoted to the supporting rod, and the other end of the connecting rod is movably connected to the seat.

6. A walking stick chair according to claim 5, in which: the connecting rod is movably connected with the seat through a universal joint.

7. The crutch chair of claim 1 wherein: the support rod is fixedly provided with a fixed sleeve, and the first connecting rod, the second connecting rod and the folding mechanism are all connected to the fixed sleeve.

8. The crutch chair of claim 1 wherein: the seat comprises a main plate and two side plates, the two side plates are respectively pivoted on two sides of the main plate, and the folding mechanism is respectively connected with the two side plates so as to drive the side plates to fold when being folded.

9. The crutch chair of claim 1 wherein: a connecting and locking device is arranged between the connecting device and the supporting rod, so that the connecting device is fixed relative to the supporting rod when in locking, or the connecting device can slide relative to the supporting rod when in unlocking.

10. A crutch chair as claimed in claim 9, wherein: the connecting and locking device comprises a first seat body, a second seat body and an elastic piece, wherein the first seat body and the second seat body are sleeved on the supporting rod in a sliding manner, and the elastic piece is arranged between the first seat body and the second seat body; the first base body is provided with a release part, and the second base body is provided with a locking part which can be locked with the support rod; when the first seat body is driven to slide, the first seat body can drive the locking part and the supporting rod to be unlocked through the locking releasing part, and then drive the second seat body to slide.

11. A crutch chair as claimed in claim 10, wherein: the middle part of the locking part is pivoted to the second seat body, the front end of the locking part is provided with a hook body, the rear end of the locking part is provided with a pressing part, and the unlocking part is in sliding contact with the middle part of the locking part and the pressing part.

12. A crutch chair as claimed in claim 11, wherein: a reset piece is arranged between the locking part and the second base body so as to drive the locking part to reset.

13. A crutch chair as claimed in claim 10, wherein: the elastic piece is a compression spring, and the compression spring is compressed when the first base body slides towards the direction far away from the first base body.

14. A crutch chair as claimed in claim 13, wherein: the two sides of the first seat body are provided with sleeves, the two sides of the upper end of the second seat body are provided with ear parts, one end of the compression spring is abutted against the ear parts, and the other end of the compression spring is abutted against the inner bottom of the sleeves.

15. A crutch chair as claimed in claim 10, wherein: the first seat body is provided with a buckling part, the bottom surface of the seat is provided with a clamping part, and after the seat is folded, the clamping part is buckled with the buckling part.

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