Crutch chair capable of automatically bouncing off

Abstract

The utility model discloses a walking stick chair capable of being automatically bounced off, which comprises a hollow main rod extending along the axis, a folding plate mechanism arranged on the main rod and capable of being unfolded and folded and a supporting leg mechanism linked with the folding plate mechanism to be unfolded and folded, and a sliding sleeve capable of sliding between a first position and a second position along the main rod is arranged on the main rod. The plate folding mechanism drives the sliding sleeve to slide from the second position to the first position when being linked with the supporting leg mechanism to be folded upwards; the main rod is provided with a latch hook piece and a lifting switch which synchronously slide along the main rod, the plate folding mechanism is provided with an elastic piece for driving the plate folding mechanism to be unfolded relative to the main rod and a hook buckled with the latch hook piece, and the main rod is provided with a reset piece for driving the hook to be kept buckled to the latch hook piece. The hook and the lock hook piece are buckled to limit the folding plate mechanism to be unfolded relative to the main rod and keep the sliding sleeve at the second position.

Description

Technical Field

[0001] The utility model relates to the technical field of crutch chairs, in particular to an automatically pop-up crutch chair. Background Art

[0002] A crutch chair, also called a cane chair, is a combination product of a crutch and a stool. It is used by people with poor physical conditions. It can not only assist the user in walking, but also allow the user to sit down and rest.

[0003] The prior art also provides a crutch chair, which can be converted into a crutch and a crutch chair between a folded state and an unfolded state. However, this type of public crutch chair only has the function of being converted into a crutch and a crutch chair. In actual use, the crutch chair is relatively complicated to open, and the folding seat plate needs to be opened manually. At the same time, the supporting legs may not be able to stably maintain a predetermined position relative to the rod, and the folding seat plate may also rebound due to external force.

[0004] In order to further facilitate the use of the user, many solutions have been proposed in the prior art to combine a crutch and a crutch chair to solve the above-mentioned problem. However, such publicly available prior art solutions are rather cumbersome in actual manufacturing and use, and have a relatively complex structure, which increases the manufacturing cost, and has a potentially high failure rate, which to a certain extent also increases the cost of use and is not convenient for users.

[0005] In general, although many solutions for converting a cane or a cane chair between a folded state and an unfolded state have been proposed in the prior art, users always hope that a newer cane chair can be provided that can reduce the cost of use without affecting the convenience of use.

[0006] Based on the above problems, it is necessary to propose a new crutch chair, which has the functions of automatic unfolding and convenient folding. By pulling the switch, the folding seat can be automatically opened, and the supporting legs can also be gathered and folded to make the center of gravity of the crutch chair higher. In addition, the structure of the crutch chair is simplified, which reduces the failure rate and is also conducive to the assembly and production of the crutch chair. Less processing is required on the main rod, and the impact on the strength and rigidity of the main rod is relatively low, which further assists daily life and improves the user experience. Utility Model Content

[0007] In order to overcome the shortcomings of the existing technical solutions, the utility model provides an automatically pop-up crutch chair, comprising a hollow main rod extending along an axis, a folding plate mechanism arranged on the main rod and capable of being unfolded and folded, and a leg support mechanism that is unfolded and folded in conjunction with the folding plate mechanism.

[0008] The main rod is provided with a sliding sleeve which can slide along the main rod between a first position and a second position, and the folding plate mechanism drives the sliding sleeve to slide from the second position to the first position when the leg support mechanism is linked to be folded upward;

[0009] The main rod is provided with a lock hook member and a pull-up switch which slide synchronously along the main rod, the folding plate mechanism is provided with an elastic member which drives the folding plate mechanism to unfold relative to the main rod and a hook which engages with the lock hook member, the main rod is provided with a reset member which drives the hook to remain engaged with the lock hook member, the hook engages with the lock hook member to limit the folding plate mechanism from unfolding relative to the main rod and keeps the sliding sleeve in the second position, and the pull-up switch can slide when subjected to external force and drive the lock hook member to disengage the hook and release the engagement.

[0010] Preferably, a connecting piece is fixedly provided at the middle position of the main rod, the sliding sleeve is arranged above the connecting piece, the folding plate mechanism includes a support rod pivotally connected to the connecting piece and a folding seat plate pivotally connected to the sliding sleeve, the support rod is pivotally connected to the folding seat plate, the hook is arranged at the front end position of the bottom of the folding seat plate, and the elastic piece is a torsion spring arranged at the pivotal joint between the folding seat plate and the support rod.

[0011] Preferably, the folding plate mechanism and the leg support mechanism are both connected to the sliding sleeve to form a linkage, and the leg support mechanism includes a supporting leg pivoted to the connecting member and a pull-back rod pivoted to the sliding sleeve, and the other end of the pull-back rod relative to the sliding sleeve is pivoted to the middle of the supporting leg.

[0012] Preferably, the folding seat plate includes a main board and side panels hinged on both sides of the main board, the bottom of the main board is pivotally connected to the support rod, the support rod is rotatably connected to a rotating seat that rotates axially around the support rod, the rotating seat is rotatably connected to a side panel support rod, and the other end of the side panel support rod relative to the rotating seat is rotatably connected to the bottom of the side panel.

[0013] Preferably, a protrusion is provided on an outer side of the supporting leg, and a magnetic positioning portion is provided at the bottom of the side plate, and when the sliding sleeve slides to the first position, the magnetic positioning portion is magnetically adsorbed to the protrusion.

[0014] Preferably, a protruding limiting column is provided on an outer side of the supporting leg, and when the sliding sleeve slides to the first position, the limiting column abuts against the pull-back rod to limit the sliding sleeve from sliding upward.

[0015] Preferably, a first guide groove and a second guide groove are opened on the outer wall of the main rod along the axial direction, and the first guide groove and the second guide groove are respectively connected with the hollow through groove of the main rod, the pull switch is slidably connected to the main rod by a first sliding rod sliding along the first guide groove, the sliding sleeve is arranged between the first guide groove and the second guide groove, the connecting member is arranged below the second guide groove, the lock hook member is slidably connected to the main rod by a second sliding rod sliding along the second guide groove, a connecting rod is connected between the first sliding rod and the second sliding rod to form a linkage, and the reset member is a reset spring, which is arranged at the upper position of the main rod, one end of the reset spring is fixedly arranged on the inner wall of the hollow through groove, and the other end is connected to the connecting rod and drives the lock hook member to slide downward.

[0016] Preferably, a locking hole is provided on the sliding sleeve, and a locking marble is provided on the outer wall of the main rod. When the sliding sleeve slides to the second position, the locking marble cooperates with the locking hole to limit the sliding of the sliding sleeve, and the crutch chair remains in the unfolded state.

[0017] Preferably, the pull switch is provided with a protruding finger pull portion, and the sliding sleeve is provided with a protruding auxiliary pull portion.

[0018] Preferably, an anti-slip portion is provided on the outer surface of the folding seat plate.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] The utility model can automatically open the folding seat plate through the lifting and pulling opening key, and a hook that is buckled with the lock buckle is arranged at the bottom of the folding seat plate. The hook and the lock buckle are buckled to limit the unfolding of the folding seat plate, and a reset member is arranged above the lock buckle to drive the hook and the lock buckle to keep buckling, so as to keep the crutch chair in the folded state. A linked lifting switch is connected to the lock buckle, and when the lifting switch moves upward, the lock buckle is driven to disengage from the hook. The folding seat plate is popped open under the action of the torsion spring and drives the sliding sleeve to slide, so that the crutch chair is automatically converted from the folded state to the unfolded state. The structure for realizing the automatic pop-up of the crutch chair is simplified, and it can be realized by only arranging a structural part for the reciprocating movement of the lifting switch and the lock hook on the main rod, less processing is required on the main rod, and the tubular structure of the main rod itself is maintained, which has little impact.

[0021] The pull-up switch is arranged near the walking stick of the crutch chair, and the user can pull the pull-up switch to open the folding seat plate without bending over, and the supporting feet can be gathered and folded upward to the upper position of the crutch chair, so that the supporting points on the ground are concentrated and the influence of ground unevenness is reduced. The folding panel is folded to form a U-shaped shield for the supporting legs, so that the center of gravity of the crutch chair is higher, the swinging torque is smaller, and it is easier and more labor-saving to swing back and forth, which can reduce the burden on the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the implementation manner will be briefly introduced below. Obviously, the drawings described below are only some implementation manners of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 The figure is a schematic diagram of the overall structure of the crutch chair;

[0024] Figure 2 is a schematic diagram of the crutch chair state when the sliding sleeve is in the first position;

[0025] Figure 3 is a schematic diagram of the crutch chair state when the sliding sleeve is in the second position;

[0026] Figure 4 for Figure 3 A partial enlarged view of the crutch chair structure at point A;

[0027] Figure 5 It is a schematic diagram of the bottom structure of the folding seat plate;

[0028] Figure 6 Schematic diagram of the folded main rod structure;

[0029] Figure 7 It is a schematic diagram of the structure of the linkage assembly of the pull switch and the lock hook;

[0030] Figure 8 It is a schematic diagram of the partial structure of the crutch chair;

[0031] In the figure:

[0032] 1. Main rod; 2. Connector; 3. Support leg; 4. Folding seat plate; 5. Slide; 6. Lock hook; 7. Pull switch; 8. Reset spring; 9. Torsion spring; 11. First guide groove; 12. Second guide groove; 13. Positioning marble; 21. Support rod; 22. Rotating seat; 23. Side plate support rod; 24. Pull back rod; 31. Protrusion; 32. Limiting column; 41. Main board; 42. Side plate; 43. Hook; 44. Anti-slip part; 45. Magnetic positioning part; 51. Positioning hole; 52. Auxiliary pulling part; 61. Connecting rod; 62. Second sliding rod; 71. Finger pulling part; 72. First sliding rod. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0034] Reference to "embodiment" or "implementation" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment or implementation may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0035] In this specification, for the sake of convenience, the words and phrases indicating the orientation or positional relationship such as "middle", "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like are used to illustrate the positional relationship of the constituent elements with reference to the drawings. This is only for the convenience of describing this specification and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. The positional relationship of the constituent elements is appropriately changed according to the orientation of the constituent elements being described. Therefore, it is not limited to the words and phrases described in the specification, and can be appropriately replaced according to the circumstances.

[0036] like Figure 1 As shown, an automatically pop-up crutch chair comprises a hollow main rod 1 extending along an axis, a folding plate mechanism arranged on the main rod 1 and capable of being unfolded and folded, and a leg support mechanism that is unfolded and folded in conjunction with the folding plate mechanism, characterized in that:

[0037] The main rod 1 is provided with a sliding sleeve 5 which can slide along the main rod 1 between a first position and a second position. When the folding plate mechanism links with the leg support mechanism to be folded upward, the sliding sleeve 5 is driven to slide from the second position to the first position.

[0038] The main rod 1 is provided with a lock hook 6 and a pull switch 7 that slide synchronously along the main rod 1, the folding plate mechanism is provided with an elastic member that drives the folding plate mechanism to unfold relative to the main rod 1 and a hook 43 that is buckled with the lock hook 6, and the main rod 1 is provided with a reset member that drives the hook 43 to remain buckled to the lock hook 6. Figure 3As shown, the hook 43 is engaged with the lock hook member 6 to limit the folding plate mechanism from unfolding relative to the main rod 1 and keep the sliding sleeve 5 in the second position. The pull switch 7 is connected to the lock hook member 6, and the pull switch 7 can slide when subjected to external force and drive the locking member 6 to disengage the hook 43 and release the locking.

[0039] like Figure 2 As shown, a connecting member 2 is fixedly provided at the middle position of the main rod 1, and the sliding sleeve 5 is arranged above the connecting member 2. The folding plate mechanism includes a support rod 21 pivoted to the connecting member 2 and a folding seat plate 4 pivoted to the sliding sleeve 5. The support rod 21 is pivoted to the folding seat plate 5. The hook 43 is arranged at the front end position of the bottom of the folding seat plate 4. The elastic member is a torsion spring 9 arranged at the pivotal position between the folding seat plate 4 and the support rod 21. In some embodiments (not shown in the figure), the torsion spring 9 can be replaced by a tension spring torsion setting, or it can be directly connected to the lock hook member 6 and the sliding sleeve 5 to drive the sliding sleeve 5 toward the lock hook member 6 to link the folding seat plate to unfold. The folding plate mechanism and the leg support mechanism are both connected to the sliding sleeve 5 to form a linkage. The leg support mechanism includes a support leg 3 pivoted to the connecting member 2 and a pull-back rod 24 pivoted to the sliding sleeve 5. The pull-back rod 24 is pivoted to the middle of the support leg 3 relative to the other end of the sliding sleeve 5.

[0040] like Figure 5 As shown, the folding seat plate 4 includes a main board 41 and side boards 42 hinged on both sides of the main board 41. The bottom of the main board 41 is pivotally connected to the support rod 21. The support rod 21 is rotatably connected to a rotating seat 22 that rotates around the axial direction of the support rod 21. The rotating seat 22 is rotatably connected to a side board support rod 23. The other end of the side board support rod 23 relative to the rotating seat 22 is rotatably connected to the bottom of the side board 42. Figure 4 As shown, the main board 41 and the side board 42 form a U-shaped structure when folded and gathered, shielding the support leg 3 folded upward, and after the crutch chair is folded, the center of gravity of the crutch chair is located between the middle section and the top of the main pole 1. When the user uses the folded crutch chair to assist walking, the swinging torque is small, and it is easier and more labor-saving to swing back and forth, which can reduce the burden on the user. The support leg 3 is shielded and can also prevent direct contact with foreign objects and cause influence. The outer surface of the folding seat plate 4 is provided with an anti-slip portion 44, which can be an anti-slip pattern or an anti-slip convex point.

[0041] like Figure 4As shown, a protrusion 31 is provided on the outer side of the support leg 3, and a magnetic positioning portion 45 is provided at the bottom of the side plate 42. When the sliding sleeve 5 slides to the first position, the magnetic positioning portion 45 is magnetically adsorbed with the protrusion 31, and the magnetic adsorption can further assist in maintaining the folded state of the crutch chair. A protruding limit column 32 is provided on the outer side of the support leg 3. When the sliding sleeve 5 slides to the first position, the limit column 32 abuts against the pull-back rod 24 to limit the sliding sleeve 5 from sliding upward. When the pull switch 7 drives the lock hook 6 to move upward, the limit column 32 limits the sliding sleeve 5 from sliding upward and then limits the sliding sleeve 5 from driving the folding seat plate 4 to fold. The hook 43 on the folding seat plate 4 remains stationary, which facilitates the separation of the lock hook 6 and the hook 43, that is, the lock hook 6 moves upward independently of the hook 43 to complete the disengagement.

[0042] like Figure 6 , 7 As shown, the outer wall of the main rod 1 is provided with a first guide groove 11 and a second guide groove 12 along the axial direction, and the first guide groove 11 and the second guide groove 12 are respectively connected to the hollow through groove of the main rod 1, the pull switch 7 is slidably connected to the main rod 1 by a first slide bar 72 sliding along the first guide groove 11, the sliding sleeve is arranged between the first guide groove and the second guide groove, and the sliding sleeve 5 is arranged below the first guide groove 11, the lock hook 6 is slidably connected to the main rod 1 by a second slide bar 62 sliding along the second guide groove 12, and a connecting rod 61 is connected between the first slide bar 72 and the second slide bar 62 to form a linkage, and the reset member is a reset spring 8, which is arranged at the upper position of the main rod 1, one end of the reset spring 8 is fixedly arranged on the inner wall of the hollow through groove, and the other end is connected to the connecting rod 61 and drives the lock hook 6 to slide downward. The connecting rod 61 is rotatably connected to the first slide bar 72 and the second slide bar 62, respectively, to form a structure similar to a piston movement in the main rod 1. In some embodiments (not shown in the figures), the sliding sleeve 5 and the locking hook 6 can be directly sleeved on the outside of the main rod 1 to achieve a sliding connection, and an anti-rotation mechanism is provided for the sliding sleeve 1 and the locking hook 6 to prevent the locking hook 6 from laterally disengaging from the hook, and the reset member is arranged on the outer periphery of the main rod to avoid the connecting member, so as to reduce the impact on the tubular structure of the main rod itself.

[0043] like Figure 2As shown, the slide sleeve 5 is provided with a locking hole 51, and the outer wall of the main rod 1 is provided with a locking marble 13. When the slide sleeve 5 slides to the second position, the locking marble 13 cooperates with the locking hole 51 to limit the sliding of the slide sleeve 5, and the crutch chair remains in the unfolded state. In some embodiments (not shown in the figure), the locking marble 13 can be replaced by an elastic pin to achieve the locking of the locking hole 51. The pull switch 7 is provided with a protruding finger pull portion 71, and the slide sleeve 5 is provided with a protruding auxiliary pull portion 52, which is convenient for users to use.

[0044] The utility model can automatically open the folding seat plate 4 through the lifting switch 7, and a hook 43 that is buckled with the lock hook member 6 is arranged at the bottom of the folding seat plate 4. The hook 43 and the lock hook member 6 are buckled to limit the unfolding of the folding seat plate 4. A reset member is arranged above the lock hook member 6 to drive the hook 43 to keep buckling with the lock hook member 6, so as to keep the crutch chair in the folded state. A linked lifting switch 7 is connected to the lock hook member 6. When the lifting switch 7 moves upward, the lock hook member 6 is driven to disengage from the hook 43. The folding seat plate 4 is popped open under the action of the torsion spring 9 and the sliding sleeve 5 is driven to slide, so that the crutch chair is automatically converted from the folded state to the unfolded state. The structure for realizing the automatic opening of the crutch chair is simplified, and it can be realized by only providing a structural part for the reciprocating movement of the lifting switch 7 and the lock hook member 6 on the main rod 1. Less processing is required on the main rod 1, and the tubular structure of the main rod 1 itself is maintained, which has little impact.

[0045] The pull switch 7 is arranged near the walking stick part of the crutch chair, and the user can pull the pull switch 7 to open the folding seat plate 4 without bending over, and its supporting legs 3 can be gathered and folded upward to the upper position of the crutch chair, so that the supporting points of the supporting legs 3 on the ground are concentrated, and the influence of ground unevenness is reduced. The folding seat plate 4 is folded to form a U-shaped shield for the supporting legs 3, so that the center of gravity of the crutch chair is higher, the swinging torque is smaller, and it is easier and more labor-saving to swing back and forth, which can reduce the burden on the user.

[0046] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. An automatically pop-up crutch chair, comprising a hollow main rod extending along an axis, a folding plate mechanism disposed on the main rod and capable of being unfolded and folded, and a leg support mechanism that is unfolded and folded in conjunction with the folding plate mechanism, characterized in that: The main rod is provided with a sliding sleeve which can slide along the main rod between a first position and a second position, and the folding plate mechanism drives the sliding sleeve to slide from the second position to the first position when the leg support mechanism is linked to be folded upward; The main rod is provided with a lock hook member and a pull-up switch which slide synchronously along the main rod, the folding plate mechanism is provided with an elastic member which drives the folding plate mechanism to unfold relative to the main rod and a hook which engages with the lock hook member, the main rod is provided with a reset member which drives the hook to remain engaged with the lock hook member, the hook engages with the lock hook member to limit the folding plate mechanism from unfolding relative to the main rod and keeps the sliding sleeve in the second position, and the pull-up switch can slide when subjected to external force and drive the lock hook member to disengage the hook and release the engagement.

2. The automatically pop-up crutch chair according to claim 1, characterized in that: A connecting piece is fixedly provided at the middle position of the main rod, the sliding sleeve is arranged above the connecting piece, the folding plate mechanism includes a support rod pivotally connected to the connecting piece and a folding seat plate pivotally connected to the sliding sleeve, the support rod is pivotally connected to the folding seat plate, the hook is arranged at the front end position of the bottom of the folding seat plate, and the elastic piece is a torsion spring arranged at the pivotal joint between the folding seat plate and the support rod.

3. The automatically pop-up crutch chair according to claim 2, characterized in that: The folding plate mechanism and the leg support mechanism are both connected to the sliding sleeve to form a linkage. The leg support mechanism includes a supporting leg pivoted to the connecting member and a pull-back rod pivoted to the sliding sleeve. The other end of the pull-back rod relative to the sliding sleeve is pivoted to the middle of the supporting leg.

4. The automatically pop-up crutch chair according to claim 3, characterized in that: The folding seat plate includes a main board and side boards hinged on both sides of the main board. The bottom of the main board is pivotally connected to a support rod. A rotating seat that rotates around the axis of the support rod is rotatably connected to the support rod. A side board support rod is rotatably connected to the rotating seat. The other end of the side board support rod relative to the rotating seat is rotatably connected to the bottom of the side panel.

5. The automatically pop-up crutch chair according to claim 4, characterized in that: A protrusion is provided on the outer side of the support leg, and a magnetic positioning portion is provided at the bottom of the side plate. When the sliding sleeve slides to the first position, the magnetic positioning portion is magnetically adsorbed to the protrusion.

6. The automatically pop-up crutch chair according to claim 4, characterized in that: A protruding limiting column is provided on an outer side of the supporting leg. When the sliding sleeve slides to the first position, the limiting column abuts against the pull-back rod to limit the sliding sleeve from sliding upward.

7. The automatically pop-up crutch chair according to claim 3, characterized in that: A first guide groove and a second guide groove are provided on the outer wall of the main rod along the axial direction, and the first guide groove and the second guide groove are respectively connected to the hollow through groove of the main rod; the pull switch is slidably connected to the main rod by a first sliding rod sliding along the first guide groove; the sliding sleeve is arranged between the first guide groove and the second guide groove; the connecting member is arranged below the second guide groove; the lock hook member is slidably connected to the main rod by a second sliding rod sliding along the second guide groove; a connecting rod is connected between the first sliding rod and the second sliding rod to form a linkage; the reset member is a reset spring, and the reset spring is arranged at the upper position of the main rod; one end of the reset spring is fixedly arranged on the inner wall of the hollow through groove, and the other end is connected to the connecting rod and drives the lock hook member to slide downward.

8. An automatically pop-up crutch chair according to any one of claims 1-7, characterized in that: A locking hole is provided on the sliding sleeve, and a locking ball is provided on the outer wall of the main rod. When the sliding sleeve slides to the second position, the locking ball cooperates with the locking hole to limit the sliding of the sliding sleeve, and the crutch chair remains in the unfolded state.

9. The automatically pop-up crutch chair according to claim 8, characterized in that: The pull switch is provided with a protruding finger pull portion, and the sliding sleeve is provided with a protruding auxiliary pull portion.

10. The automatically pop-up crutch chair according to claim 2, characterized in that: An anti-slip portion is provided on the outer surface of the folding seat plate.

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