CN215776027U

CN215776027U - Single-head and multi-head interchangeable crutch

Info

Publication number: CN215776027U
Application number: CN202122485943.6U
Authority: CN
Inventors: 任光辉; 赵燕妮
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-16
Filing date: 2021-10-16
Publication date: 2022-02-11
Anticipated expiration: 2031-10-16

Abstract

The utility model discloses a walking stick with interchangeable single head and multiple heads, which comprises a hollow rod, a connecting rod, branch contacts, a limiting part, an unfolding torsion spring, a guide sleeve, a telescopic locking assembly and a handle, wherein the handle is arranged at the upper end of the hollow rod, the guide sleeve is arranged in the middle of a cavity in the hollow rod, the connecting rod is connected in the guide sleeve in a sliding manner, the telescopic locking assembly is arranged at the upper end of the connecting rod, the lower end of the connecting rod is hinged with the branch contacts, the unfolding torsion spring is arranged at the hinged position of the branch contacts and the connecting rod, and the limiting part is arranged above each branch contact. The technical effects achieved are as follows: according to the crutch with the interchangeable single head and multiple heads, the connecting rod is driven by the telescopic locking assembly to be telescopically locked in the hollow rod in a reciprocating manner, and the switching between the single contact and the multiple contacts at the lower end of the crutch is realized through the multiple branch contacts arranged at the lower end of the connecting rod, so that different use requirements of users are met.

Description

Single-head and multi-head interchangeable crutch

Technical Field

The utility model relates to the technical field of crutches, in particular to a crutch with interchangeable single head and multiple heads.

Background

The walking sticks in the prior art are mainly divided into two types, wherein one type is a walking stick with a single contact at the tail end, the other type is a walking stick with a plurality of radial contacts at the tail end, the walking sticks with different contact numbers can play different roles in different occasions, and a walking stick structure capable of switching between the single contact and the plurality of contacts is lacked.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a crutch with interchangeable single head and multiple heads, which solves the problems in the prior art.

In order to achieve the above purpose, the utility model provides the following technical scheme:

according to the first aspect of the utility model, the walking stick with the interchangeable single head and multiple heads comprises a hollow rod, a connecting rod, branch contacts, a limiting part, an unfolding torsion spring, a guide sleeve, a telescopic locking assembly and a handle, wherein the handle is arranged at the upper end of the hollow rod, the guide sleeve is arranged in the middle of a cavity in the hollow rod, the connecting rod is connected in the guide sleeve in a sliding mode, the telescopic locking assembly is arranged at the upper end of the connecting rod, the branch contacts are hinged to the lower end of the connecting rod, the unfolding torsion spring is arranged at the hinged positions of the branch contacts and the connecting rod, and the limiting part is arranged above each branch contact.

Further, still include angle locking nut, the handle rotate to be connected the upper end of hollow rod, the handle with the junction of hollow rod passes through the locking of angle locking nut realization angle between the two.

Further, a plurality of the branch contacts are distributed at the lower end of the connecting rod in an equally spaced annular array.

Further, flexible locking subassembly includes joint handle, gag lever post, joint arch, bayonet joint and reset spring, the worker's shape groove has been seted up on the lateral wall of hollow pole, the one end of gag lever post via the worker's shape groove penetrates the inside of hollow pole and wear to establish the upper end of connecting rod, the gag lever post passes the tip of connecting rod is provided with the bayonet joint, reset spring overlaps to be established on the gag lever post, reset spring's one end butt is in on the bayonet joint, reset spring's other end butt is in on the connecting rod, the other end of gag lever post is located the outside of worker's shape groove is just fixed with the joint handle, the inside wall both ends of joint handle are fixed with respectively the joint is protruding, the joint handle passes through the protruding joint of joint is in the upper end or the lower extreme of worker's shape groove.

Further, the I-shaped groove is an I-shaped groove extending along the length direction of the hollow rod.

The clamping handle is arranged at the upper limit position, and the plug connector is plugged in the upper limit jack.

The clamping handle is arranged at the lower limit position, and the plug connector is plugged in the lower limit jack.

Further, flexible locking subassembly is electric putter, electric putter's stiff end is installed the upper end of hollow pole, electric putter's flexible end is installed the upper end of connecting rod.

Further, the telescopic locking assembly comprises a driving motor and a nut-screw pair, a shell of the driving motor is fixed to the upper end of the hollow rod, a screw is fixed to an output shaft of the driving motor, the nut is arranged at the upper end of the connecting rod, and the nut is in threaded connection with the outer periphery of the screw to form the nut-screw pair.

Furthermore, the device also comprises a rubber anti-slip head, wherein the rubber anti-slip head is fixed at the lower end of each branch contact.

The utility model has the following advantages: according to the crutch with the interchangeable single head and multiple heads, the connecting rod is driven by the telescopic locking assembly to be telescopically locked in the hollow rod in a reciprocating manner, and the switching between the single contact and the multiple contacts at the lower end of the crutch is realized through the multiple branch contacts arranged at the lower end of the connecting rod, so that different use requirements of users are met.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.

FIG. 1 is a cross-sectional view of a cane with interchangeable single and multiple heads according to some embodiments of the present invention.

Fig. 2 is a side structure diagram of a crutch with interchangeable single head and multiple heads according to some embodiments of the utility model.

Fig. 3 is a diagram illustrating a contact switching state of a single-head and multi-head interchangeable crutch according to some embodiments of the present invention.

FIG. 4 is a diagram illustrating the adjustment of the tilt angle of the handle of a cane with interchangeable single and multiple heads according to some embodiments of the present invention.

Fig. 5 is an expanded schematic view of a crutch with interchangeable single head and multiple heads according to some embodiments of the utility model.

In the figure: 1. hollow rod, 2, connecting rod, 3, branch contact, 4, spacing portion, 5, expansion torsional spring, 6, uide bushing, 7, worker's shape groove, 8, joint handle, 9, gag lever post, 10, joint arch, 11, bayonet joint, 12, reset spring, 13, upper limit jack, 14, lower limit jack, 15, handle, 16, angle locking nut, 17, electric putter.

Detailed Description

The present invention is described in terms of particular embodiments, other advantages and features of the utility model will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the utility model and that it is not intended to limit the utility model to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 3, a single-head and multi-head interchangeable crutch in an embodiment of a first aspect of the present invention includes a hollow rod 1, a connecting rod 2, branch contacts 3, a limiting portion 4, an unfolding torsion spring 5, a guide sleeve 6, a telescopic locking assembly and a handle 15, the upper end of the hollow rod 1 is provided with the handle 15, the middle of an internal cavity of the hollow rod 1 is provided with the guide sleeve 6, the connecting rod 2 is slidably connected in the guide sleeve 6, the upper end of the connecting rod 2 is provided with the telescopic locking assembly, the lower end of the connecting rod 2 is hinged with a plurality of branch contacts 3, the hinged portion between the branch contacts 3 and the connecting rod 2 is provided with the unfolding torsion spring 5, and the limiting portion 4 is arranged above each branch contact 3.

In the above embodiment, it should be noted that the fixed end of the telescopic locking assembly is fixed at the upper end of the hollow rod 1, the telescopic end of the telescopic locking assembly is installed at the upper end of the connecting rod 2, when in use, the connecting rod 2 is driven by the telescopic locking assembly to reciprocate in the hollow rod 1, when the connecting rod 2 is contracted to the upper limit position, the plurality of branch contacts 3 are located inside the lower end of the hollow rod 1, at this time, the crutch is a single-contact crutch, when the connecting rod 2 is extended to the lower limit position, the plurality of branch contacts 3 are extended out of the lower end of the hollow rod 1, under the elastic force of the extending torsion spring 5, the plurality of branch contacts 3 are spread apart, at this time, the limiting part 4 limits the maximum spreading range of the branch contacts 3; the telescopic locking assembly of the embodiment may be a mechanical structure shown in fig. 1 to 4, and the telescopic locking assembly may also be an electric push rod, an air cylinder, a hydraulic cylinder, a nut-screw pair driven by a motor, a rack-and-pinion mechanism driven by a motor, and the like.

The technical effects achieved by the above embodiment are as follows: through the walking stick of a single-end and bull interchangeable of this embodiment, realized the reciprocal flexible locking of connecting rod in hollow pole through the drive of flexible locking subassembly, through setting up a plurality of branch contacts at the connecting rod lower extreme, realized the switching of single contact and a plurality of contact of walking stick lower extreme, satisfied user's different user demands.

Optionally, as shown in fig. 1 to 3, in some embodiments, an angle locking nut 16 is further included, the handle 15 is rotatably connected to the upper end of the hollow rod 1, and the connection between the handle 15 and the hollow rod 1 is locked by the angle locking nut 16.

In the above alternative embodiment, it should be noted that, as shown in fig. 3, when it is desired to adjust the angle of the handle 15 with respect to the hollow bar 1, the handle 15 is turned to a predetermined angle, for example, 90 °, and then the angle is locked by tightening the angle locking nut 16.

The beneficial effects of the above alternative embodiment are: the angle locking nut 16 is arranged in the embodiment, so that the handle 15 can be locked and fixed at any angle relative to the hollow rod 1.

Alternatively, as shown in fig. 1 to 3, in some embodiments, a plurality of branch contacts 3 are distributed at the lower end of the connecting rod 2 in an equally spaced annular array.

In the above alternative embodiments, it should be noted that, for example, the branch contacts 3 are provided in three or four, or more.

The beneficial effects of the above alternative embodiment are: by distributing the plurality of branch contacts 3 in an equally spaced annular array, the stress of the plurality of branch contacts 3 is ensured to be uniform.

Optionally, as shown in fig. 1 to 3, in some embodiments, the telescopic locking assembly includes a clamping handle 8, a limiting rod 9, a clamping protrusion 10, a plug 11 and a return spring 12, an i-shaped groove 7 is formed in a side wall of the hollow rod 1, one end of the limiting rod 9 penetrates through the inside of the hollow rod 1 via the i-shaped groove 7 and penetrates through the upper end of the connecting rod 2, the end of the limiting rod 9 penetrating through the connecting rod 2 is provided with the plug 11, the return spring 12 is sleeved on the limiting rod 9, one end of the return spring 12 abuts against the plug 11, the other end of the return spring 12 abuts against the connecting rod 2, the other end of the limiting rod 9 is located outside the i-shaped groove 7 and is fixed with the clamping handle 8, two ends of an inner side wall of the clamping handle 8 are respectively fixed with the clamping protrusion 10, and the clamping handle 8 is clamped at the upper end or the lower end of the i-shaped groove 7 through the clamping protrusion 10.

In the above optional embodiment, it should be noted that, when the plurality of branch contacts 3 need to be extended and retracted in the hollow rod 1, the clamping handle 8 is pulled, and the two clamping protrusions 10 on the clamping handle 8 are clamped at the upper end position of the i-shaped groove 7, at this time, the crutch is a single-contact crutch; when a plurality of branch contacts 3 need to extend out of the hollow rod 1, the clamping handle 8 is pulled, the clamping handle 8 slides to the lower end position of the I-shaped groove 7 along the central groove of the I-shaped groove 7, two clamping bulges 19 of the clamping handle 8 are clamped at the lower end position of the I-shaped groove 7, at the moment, the plurality of branch contacts 3 are unfolded, and the crutch is a crutch with a plurality of contacts.

The beneficial effects of the above alternative embodiment are: through the structure of the above-mentioned flexible locking subassembly of this embodiment, the processing cost is lower, excellent in use effect.

Alternatively, as shown in fig. 1 to 3, in some embodiments, the i-shaped groove 7 is an i-shaped groove extending along the length of the hollow bar 1.

Optionally, as shown in fig. 1 to 3, in some embodiments, an upper limit socket 13 is further included, the upper limit socket 13 is opened at a position where the hollow rod 1 faces the upper end of the i-shaped groove 7, and when the clamping handle 8 is located at the upper limit position, the plug connector 11 is plugged into the upper limit socket 13.

In the above alternative embodiment, it should be noted that the plurality of branch contacts 3 are retracted inside the hollow bar 1 when the plug 11 is plugged into the upper limit socket 13.

Optionally, as shown in fig. 1 to 3, in some embodiments, a lower limit socket 14 is further included, the lower limit socket 14 is opened at a position where the hollow rod 1 faces the lower end of the i-shaped groove 7, and when the clamping handle 8 is located at the lower limit position, the plug connector 11 is plugged into the lower limit socket 14.

In the above alternative embodiment, it should be noted that when the plug 11 is plugged into the lower limit socket 14, the plurality of branch contacts 3 extend out of the hollow rod 1 and are radially distributed.

The beneficial effects of the above alternative embodiment are: through the arrangement of the upper limit insertion hole 13 and the lower limit insertion hole 14, damage caused by overlarge stress when the connecting rod 2 is used is avoided.

Alternatively, as shown in fig. 5, in some embodiments, the telescopic locking assembly is an electric push rod 17, the fixed end of the electric push rod 17 is installed at the upper end of the hollow rod 1, and the telescopic end of the electric push rod 17 is installed at the upper end of the connecting rod 2.

In the above-mentioned alternative embodiment, it should be noted that, in use, the plurality of branch contacts 3 are retracted and extended by the reciprocating movement of the telescopic end of the electric push rod 17.

The beneficial effects of the above alternative embodiment are: this embodiment simple structure, degree of automation is showing and is promoting.

Optionally, in some embodiments, the telescopic locking assembly includes a driving motor and a nut-screw pair, a housing of the driving motor is fixed to the upper end of the hollow rod 1, a screw is fixed to an output shaft of the driving motor, a nut is arranged at the upper end of the connecting rod 2, and the nut is in threaded connection with the outer periphery of the screw to form the nut-screw pair.

In the above alternative embodiments, it should be noted that the telescopic locking assembly may have other configurations.

The beneficial effects of the above alternative embodiment are: through the flexible locking subassembly of this embodiment, stability is good, and is automatic showing the promotion.

Optionally, as shown in fig. 1 to 5, in some embodiments, a rubber anti-slip head is further included, and a rubber anti-slip head is fixed to a lower end of each branch contact 3.

The beneficial effects of the above alternative embodiment are: through setting up rubber antiskid head, the effectual emergence of skidding the phenomenon of having avoided when using has improved the security of using.

Although the utility model has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the utility model. Accordingly, such modifications and improvements are intended to be within the scope of the utility model as claimed.

In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for clarity of description, and are not intended to limit the scope of the present invention, and changes or modifications in the relative relationship may be made without substantial changes in the technical content.

Claims

1. A walking stick with interchangeable single head and multiple heads is characterized by comprising a hollow rod (1), a connecting rod (2), a branch contact (3), a limiting part (4), an unfolding torsion spring (5), a guide sleeve (6), a telescopic locking component and a handle (15), the handle (15) is arranged at the upper end of the hollow rod (1), the guide sleeve (6) is arranged in the middle of the inner cavity of the hollow rod (1), the connecting rod (2) is connected in the guide sleeve (6) in a sliding way, the upper end of the connecting rod (2) is provided with the telescopic locking component, the lower end of the connecting rod (2) is hinged with a plurality of branch contacts (3), the hinged part of the branch contact (3) and the connecting rod (2) is provided with the unfolding torsion spring (5), and the limiting part (4) is arranged above each branch contact (3).

2. The crutch of claim 1 further comprising an angle locking nut (16), wherein the handle (15) is rotatably connected to the upper end of the hollow bar (1), and the connection between the handle (15) and the hollow bar (1) is locked by the angle locking nut (16).

3. The crutch of claim 1 wherein a plurality of said branch contacts (3) are distributed in an equally spaced annular array at the lower end of said connecting rod (2).

4. The crutch with interchangeable single head and multiple heads according to any one of claims 1 to 3, wherein the retractable locking assembly comprises a clamping handle (8), a limiting rod (9), a clamping protrusion (10), a plug (11) and a return spring (12), wherein a I-shaped groove (7) is formed on the side wall of the hollow rod (1), one end of the limiting rod (9) penetrates into the hollow rod (1) through the I-shaped groove (7) and penetrates the upper end of the connecting rod (2), the plug (11) is arranged at the end of the limiting rod (9) penetrating through the connecting rod (2), the return spring (12) is sleeved on the limiting rod (9), one end of the return spring (12) abuts against the plug (11), and the other end of the return spring (12) abuts against the connecting rod (2), the other end of gag lever post (9) is located the outside of worker's shape groove (7) just is fixed with joint handle (8), the inside wall both ends of joint handle (8) are fixed with respectively joint arch (10), joint handle (8) pass through joint arch (10) joint is in the upper end or the lower extreme of worker's shape groove (7).

5. The crutch of claim 4 wherein said I-shaped channel (7) is an I-shaped channel extending along the length of said hollow shaft (1).

6. The crutch with interchangeable single head and multiple heads as claimed in claim 4, further comprising an upper limit socket (13), wherein the upper limit socket (13) is opened at a position where the hollow rod (1) faces the upper end of the I-shaped groove (7), and when the clamping handle (8) is located at the upper limit position, the plug (11) is plugged into the upper limit socket (13).

7. The crutch with interchangeable single head and multiple heads as set forth in claim 6, further comprising a lower limit socket (14), wherein the lower limit socket (14) is opened at a position of the hollow rod (1) facing the lower end of the I-shaped groove (7), and when the clamping handle (8) is located at the lower limit position, the plug (11) is plugged into the lower limit socket (14).

8. The crutch of any one of claims 1 to 3 wherein said telescopic locking assembly is an electric push rod (17), the fixed end of said electric push rod (17) is mounted on the upper end of said hollow bar (1), and the telescopic end of said electric push rod (17) is mounted on the upper end of said connecting bar (2).

9. The crutch of any one of claims 1 to 3 wherein said telescopic locking assembly comprises a driving motor and a nut-screw pair, a housing of said driving motor is fixed on the upper end of said hollow rod (1), a screw is fixed on the output shaft of said driving motor, said nut is disposed on the upper end of said connecting rod (2), and said nut is screwed on the outer periphery of said screw to form said nut-screw pair.

10. The crutch of claim 1 further comprising a rubber anti-slip head, wherein the rubber anti-slip head is fixed to the lower end of each of the branch contacts (3).