Multifunctional walking aid

Abstract

The utility model relates to the technical field of walking aids, in particular to a multifunctional walking aid. Comprising a frame body, an armrest frame arranged above the frame body, an infusion support fixedly installed on the armrest frame, a stabilizing device arranged on the frame body, a driving device used for adjusting operation of the armrest frame and the stabilizing device, four idler wheels arranged on the frame body and two resistance devices. The device is characterized in that the driving device comprises four lifting rods movably arranged at the four corners of the frame body respectively, a left transmission assembly arranged on the frame body and used for driving two of the lifting rods, and a right transmission assembly arranged on the frame body and used for driving the other two of the lifting rods; the height of the armrest frame is adjusted by adjusting the height of the lifting rod, so that the use requirements of most people are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to a walking aid technical field, specifically to a multifunctional walking aid. BACKGROUND

[0002] The walking aid is a kind of support user's body, auxiliary human body support weight, keep balance and walking appliance called walking aid.The conventional walking aid of prior art is generally composed of two support frames and crossbeam between support frame, when using, user stands between support frame, hand holds support frame and assists advancing.

[0003] Due to the different height of user, the height of required walking aid is different, needs to be customized according to the height of user, and the commonality is poor;The existing walking aid needs to be moved in the process of use, so it is equipped with roller, and the overall movement of walking aid is facilitated, but the position of walking aid needs to be guaranteed when assisting user to support walking, i.e. SUMMARY

[0004] The summary portion of the present application is intended to introduce briefly in a simple form the concepts that will be described in detail in the detailed description section that follows. The summary portion of the present application is not intended to identify key or essential features of the claimed technology nor is it intended to limit the scope of the claimed technology.

[0005] In order to solve the technical problems mentioned in the background section, some embodiments of the present application provide a multifunctional walking aid, which comprises a frame body, a handrail frame arranged above the frame body, an infusion support fixedly installed on the handrail frame, a stabilizing device arranged on the frame body, a driving device for adjusting the operation of the handrail frame and the stabilizing device, four rollers arranged on the frame body, and two resistance devices. The driving device comprises four lifting rods arranged at four corners of the frame body, a left transmission assembly arranged on the frame body for driving two of the lifting rods, and a right transmission assembly arranged on the frame body for driving the other two lifting rods. The left transmission assembly and the right transmission assembly are identical in structure. The left transmission assembly comprises a rotating shaft arranged on the frame body, a worm fixedly arranged on the rotating shaft, two driven shafts arranged on both sides of the worm, two worm gears fixedly arranged on the two driven shafts and meshed with the worm, two connecting rods arranged on two of the lifting rods, a first rotating rod fixedly arranged on one of the driven shafts, a second rotating rod fixedly arranged on the other driven shaft, a first slot arranged through the first rotating rod, and a second slot arranged through the second rotating rod. The two connecting rods are arranged to roll in the first slot and the second slot. The first rotating rod and the second rotating rod are arranged symmetrically. The worm on the left transmission assembly is arranged with a positive thread. The right transmission assembly is arranged with a reverse thread.

[0006] Specifically, the driving device further comprises a moving frame slidingly arranged on the frame body, a first gear fixedly sleeved on the rotating shaft of the left transmission assembly, a second gear fixedly sleeved on the rotating shaft of the right transmission assembly, a first rack engaged with the first gear and fixedly arranged on the moving frame, a second rack engaged with the second gear and fixedly arranged on the moving frame, a screw rod penetratingly arranged on the moving frame, a self-locking motor fixedly connected with one end of the screw rod and used for driving the screw rod to rotate, and a switch fixedly arranged on the handrail frame; the switch is electrically connected with the self-locking motor, and is used for controlling the opening and closing of the self-locking motor.

[0007] Specifically, the stabilizing device comprises two guide grooves symmetrically arranged on the moving frame, a sliding groove arranged on the frame body, a first sliding block and a second sliding block symmetrically slidingly arranged in the sliding groove, a first guide rod fixedly arranged on the first sliding block, a second guide rod fixedly arranged on the second sliding block, a first front shaft coaxial with the roller and rotatingly arranged on the first sliding block, a second front shaft coaxial with the roller and rotatingly arranged on the second sliding block, a first auxiliary wheel rotatingly arranged on the first front shaft, and a second auxiliary wheel rotatingly arranged on the second front shaft; the first guide rod and the second guide rod simultaneously slide in the two guide grooves; the first front shaft penetrates one of the rollers; and the second front shaft penetrates the other roller.

[0008] Specifically, the stabilizing device further comprises a sliding rail fixedly arranged on the frame body, a third sliding block slidingly arranged on the sliding rail, a connecting block having two ends fixedly arranged on the moving frame and the third sliding block respectively, and a third auxiliary wheel rotatingly arranged on the third sliding block.

[0009] Specifically, the infusion support comprises an adjusting rod fixedly arranged at the lower end of the handrail frame, and a plurality of hooks fixedly arranged on the upper end of the adjusting rod.

[0010] Specifically, the resistance device comprises a brake pad abuttingly arranged on the roller, a trapezoidal block fixedly arranged on the frame body, a sliding plate slidingly arranged on the trapezoidal block, two vertical rods having one end slidingly arranged on the sliding plate and the other end fixedly arranged on the brake pad, two springs fixedly arranged on the sliding plate and in contact with the brake pad, and an air pressure assembly fixedly arranged on the frame body and used for providing a downward pushing force for the sliding plate.

[0011] Specifically, the air pressure assembly comprises a hollow tube fixedly arranged on the frame body, a push rod movably arranged in the hollow tube and fixedly arranged on the sliding plate at the other end, a tension spring fixedly arranged in the hollow tube and fixedly arranged on the push rod at the other end, and an air inlet pipe fixedly arranged on the upper end of the hollow tube; the air inlet pipe is used for injecting air into the hollow tube.

[0012] Specifically, the air pressure assembly further comprises a compression cavity fixedly arranged on the handrail frame, a compression block slidingly arranged at the lower end of the compression cavity, and an air outlet pipe fixedly arranged on the compression cavity and in communication with the compression cavity; the air outlet pipe is connected with the air inlet pipe through a hose.

[0013] The beneficial effects of the utility model are: before use, the user presses the switch fixed on the handrail frame, starts the self-locking motor, the self-locking motor rotates, drives the screw rod to rotate, so that the moving frame starts to move, when the moving frame moves, the first rack and the second rack start to move, the first gear and the second gear rotate oppositely, so as to drive the rotating shaft on the left transmission assembly and the rotating shaft on the right transmission assembly to rotate oppositely, so as to drive the left transmission assembly and the right transmission assembly to operate simultaneously, the rotating shaft of the left transmission assembly rotates and drives the worm to rotate, the worm drives the two worm gears to rotate oppositely, the rotation of the two worm gears drives the two driven shafts to rotate oppositely, so that the first rotating rod and the second rotating rod rotate oppositely, so as to drive the two connecting rods to move in the first slot and the second slot respectively, so that two lifting rods lift, and the right transmission assembly drives the other two lifting rods to lift, so as to adjust the height of the handrail frame, adapt to most people, the first rotating rod and the second rotating rod simultaneously play the role of reinforcing ribs, so that the overall firmness of the frame body is stronger.

[0014] When the user uses, the user holds the compression block at the handrail frame with hand, air in the compression cavity enters the hose through the air outlet pipe, air in the hose enters the hollow pipe through the air inlet pipe, air in the hollow pipe pushes the push rod to move downward under pressure, the push rod pushes the sliding plate downward, the sliding plate applies pressure downward, so that the spring on the vertical rod applies pressure downward to the brake pad, so as to avoid the roller from rolling too fast and exceeding the user's moving range, since the distance of each step of the user is limited, if the frame body moves too fast and exceeds the range, the user may fall forward, that is, the distance between the frame body and the user is too large; the size of the roller damping is controlled by how much air is injected into the hollow pipe through the compression cavity; after the frame body moves to the designated position, the compression block is held to move the maximum distance into the compression cavity, so that the air in the compression cavity injects the maximum air into the hollow pipe, so that the brake pad plays the role of brake on the roller, and the frame body plays the role of fixation; after the user releases the compression block, the sliding plate resets through the spring, so that the push rod resets through the tension spring, so that the air in the hollow pipe returns to the compression cavity through the hose, the compression block resets, the damping of the brake pad on the roller decreases, and the roller can rotate, so as to push the frame body to move. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The drawings illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0016] In addition, throughout the drawings, same or similar reference numerals are used to represent same or similar elements. It should be understood that the drawings are schematic, and the elements and elements are not necessarily drawn according to the proportion.

[0017] In the drawings:

[0018] Figure 1 is a structural schematic view of the utility model;

[0019] Figure 2 is a top view of the utility model;

[0020] Figure 3 is a side view of the utility model;

[0021] Figure 4 is a partial schematic view of the stabilizing device;

[0022] Figure 5 is a sectional view of the C-C line in Figure 4

[0023] Figure 6 is an enlarged view of A in Figure 5

[0024] Figure 7 is a sectional view of the A-A line in Figure 4

[0025] Figure 8 Figure 4 is a sectional view of the B-B line in DETAILED DESCRIPTION

[0026] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although some embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms, and should not be interpreted as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided so as to more completely and comprehensively understand the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes, and are not intended to limit the scope of protection of the present disclosure.

[0027] In addition, it should be further noted that, for the convenience of description, only parts related to the utility model are shown in the drawings. The embodiments in the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0028] It should be noted that the concepts of "first", "second", etc. mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not intended to limit the order or interdependence of the functions performed by these devices, modules or units.

[0029] It should be noted that the adjectives "one", "multiple" mentioned in the present disclosure are illustrative and not limiting, and those skilled in the art should understand that, unless otherwise explicitly stated in the context, it should be understood as "one or more".

[0030] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.​​​​

[0031] Referring to Figures 1-8 As shown in the figure, a multifunctional walking aid includes a frame body 1, a handrail frame 2 arranged above the frame body, an infusion frame 3 fixedly arranged on the handrail frame, a stabilizing device 4 arranged on the frame body, a driving device 5 for adjusting the operation of the handrail frame and the stabilizing device, four rollers 6 arranged on the frame body, and two resistance devices 7. The driving device 5 includes four lifting rods 51 respectively arranged at four corners of the frame body 1, a left transmission assembly 52 arranged on the frame body for driving two of the lifting rods, and a right transmission assembly 53 arranged on the frame body for driving the other two lifting rods. The left transmission assembly 52 and the right transmission assembly 53 have the same structure. The left transmission assembly includes a rotating shaft 521 arranged on the frame body 1, a worm 522 fixedly arranged on the rotating shaft 521, two driven shafts 523 rotatably arranged on the frame body 1 and located on both sides of the worm 522, two worm gears 524 fixedly arranged on the two driven shafts and in mesh with the worm, two connecting rods 525 rotatably arranged on two of the lifting rods 51, a first rotating rod 526 fixedly arranged at one end on one of the driven shafts 523, a second rotating rod 527 fixedly arranged at one end on the other driven shaft 523, a first slot 528 arranged through the first rotating rod, and a second slot 529 arranged through the second rotating rod. The two connecting rods 525 are respectively arranged to roll in the first slot 528 and the second slot 529. The first rotating rod 526 and the second rotating rod 527 are symmetrically arranged. The worm 522 on the left transmission assembly 52 is arranged with a positive thread. The worm 522 on the right transmission assembly 53 is arranged with a reverse thread. When the height of the handrail frame needs to be adjusted, the driving device drives the left transmission assembly and the right transmission assembly to operate, so that the four lifting rods simultaneously rise or fall, thereby causing the handrail frame to rise or fall. The driving device drives the rotating shaft on the left transmission assembly to rotate, causing the worm to rotate and driving the two worm gears to relatively rotate, thereby driving the two driven shafts to rotate, driving the first rotating rod and the second rotating rod to rotate, and finally causing the two lifting rods to rise or fall through the arrangement of the two connecting rods. Similarly, the right transmission assembly causes the other two lifting rods to rise or fall, and finally causes the four lifting rods to simultaneously rise or fall, thereby adjusting the height of the entire handrail frame and stabilizing during the rising process. At the same time, the first rotating rod and the second rotating rod also function as reinforcing ribs, thereby increasing the overall strength of the frame body.

[0032] Specifically, the driving device 5 further comprises a moving frame 54 slidingly arranged on the frame body 1, a first gear 55 fixedly sleeved on the rotating shaft of the left transmission assembly 52, a second gear 56 fixedly sleeved on the rotating shaft of the right transmission assembly 53, a first rack 57 engaged with the first gear and fixedly arranged on the moving frame 54, a second rack 58 engaged with the second gear and fixedly arranged on the moving frame 54, a screw rod 59 penetratingly arranged on the moving frame 54, a self-locking motor 510 fixedly connected with one end of the screw rod 59 and used for driving the screw rod to rotate, and a switch 511 fixedly arranged on the handrail frame 2; the switch 511 is electrically connected with the self-locking motor 510 and used for controlling the opening and closing of the self-locking motor; when the rotation of the rotating shaft needs to be controlled, the self-locking motor is controlled to operate through the switch, the self-locking motor drives the screw rod to rotate, the screw rod drives the moving frame to move, thereby driving the first rack and the second rack on the two sides of the moving frame to move, driving the first gear and the second gear engaged with the first rack and the second rack to rotate, and finally driving the left transmission assembly and the right transmission assembly to operate.

[0033] Specifically, the stabilizing device 4 comprises two guide grooves 41 symmetrically arranged on the moving frame 54, a sliding groove 42 arranged on the frame body 1, a first sliding block 43 and a second sliding block 44 symmetrically slidingly arranged in the sliding groove 42, a first guide rod 45 fixedly arranged on the first sliding block 43, a second guide rod 46 fixedly arranged on the second sliding block 44, a first front shaft 47 coaxially arranged with the roller and rotatingly arranged on the first sliding block 43, a second front shaft 48 coaxially arranged with the roller and rotatingly arranged on the second sliding block 44, a first auxiliary wheel 49 rotatingly arranged on the first front shaft 47, and a second auxiliary wheel 410 rotatingly arranged on the second front shaft 48; the first guide rod 45 and the second guide rod 46 simultaneously slide in the two guide grooves; the first front shaft penetrates one of the rollers; the second front shaft penetrates the other roller; when the height of the handrail frame needs to be adjusted, the first guide rod and the second guide rod in the two guide grooves are driven to move along the guide grooves by moving the moving frame, thereby driving the first sliding block and the second sliding block to move axially along the sliding groove, driving the first front shaft and the second front shaft to move axially along the sliding groove, and driving the first auxiliary wheel and the second auxiliary wheel to move away from the frame body to improve the supporting effect on the two sides, that is, the lifting height of the handrail frame is proportional to the moving distance of the first auxiliary wheel and the second auxiliary wheel, thereby improving the stability of the frame body.

[0034] Specifically, the stabilizing device 4 further comprises a slide rail 411 fixed on the frame body 1, a third slide block 412 slidingly arranged on the slide rail 411, a connecting block 413 with two ends fixed on the moving frame 54 and the third slide block 412 respectively, and a third auxiliary wheel 414 rotatably arranged on the third slide block 412. The moving frame further drives the connecting block to move, and the connecting block is fixed with the third slide block, so as to drive the third slide block to move together. The third slide block is movably arranged on the slide rail, so that the third slide block moves along the direction of the slide rail, and finally drives the third auxiliary wheel to move. When the handrail frame is adjusted upward, the third auxiliary wheel is away from the frame body, so as to avoid instability due to the heightening of the handrail frame.

[0035] Specifically, the infusion stand 3 comprises an adjusting rod 31 with a lower end fixed on the handrail frame 2, and a plurality of hooks 32 fixed on the upper end of the adjusting rod. The infusion rod can be adjusted in height.

[0036] Specifically, the resistance device 7 comprises a brake pad 71 attached to the roller, a trapezoidal block 72 fixed to the frame 1, a sliding plate 73 sliding on the trapezoidal block 72, two vertical rods 74 with one end sliding on the sliding plate 73 and the other end fixed to the brake pad 71, two springs 75 fixed to the sliding plate 73 and in contact with the brake pad 71, and an air pressure assembly 76 fixed to the frame 1 and used to provide a downward pushing force to the sliding plate; the air pressure assembly 76 comprises a hollow tube 761 fixed to the frame 1, a push rod 762 with one end movable in the hollow tube 761 and the other end fixed to the sliding plate 73, a tension spring 763 with one end fixed in the hollow tube 761 and the other end fixed to the push rod 762, and an air inlet tube 764 fixed to the upper end of the hollow tube 761; the air inlet tube is used to inject air into the hollow tube; the air pressure assembly 76 further comprises a compression cavity 765 fixed to the handrail 2, a compression block 766 sliding at the lower end of the compression cavity 765, and an air outlet tube 767 fixed to the compression cavity and in communication therewith; the air outlet tube 767 is connected to the air inlet tube 764 by a hose; when in use, the user holds the compression block at the handrail with his hand, so that the air in the compression cavity enters the hose through the air outlet tube, the air in the hose enters the hollow tube through the air inlet tube, the air in the hollow tube is pushed downward by the pressure to move the push rod downward, the push rod pushes the sliding plate downward, the sliding plate applies a downward pressure, so that the springs on the vertical rods apply a downward pressure to the brake pad, avoiding the roller from rolling too fast and exceeding the user's moving range; the distance of the roller damping is controlled by the amount of air injected into the hollow tube through the compression cavity; after the frame moves to the designated position, the compression block is held to move the maximum distance into the compression cavity, so that the air in the compression cavity is injected into the hollow tube to the maximum, so that the brake pad plays a braking effect on the roller, and the frame as a whole plays a fixing effect; after the user releases the compression block, the sliding plate is reset by the spring, the push rod is reset by the tension spring, so that the air in the hollow tube returns to the compression cavity through the hose, the compression block is reset, the damping of the brake pad on the roller is reduced, and the roller can rotate to push the frame to move.

[0037] The above description is merely some preferred embodiments of the present disclosure and a description of the principles of the technology used. Those skilled in the art should understand that the utility model range involved in the embodiments of the present disclosure is not limited to the technical solutions formed by the specific combinations of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or equivalent features without departing from the above utility model concept. For example, the above features are replaced with each other to form a technical solution with similar functions disclosed in the embodiments of the present disclosure (but not limited to).

Claims

1. A multifunctional walking aid, comprising a frame (1), a handrail frame (2) arranged above the frame, an infusion frame (3) fixedly arranged on the handrail frame, a stabilizing device (4) arranged on the frame, a driving device (5) for adjusting the operation of the handrail frame and the stabilizing device, four rollers (6) arranged on the frame, and two resistance devices (7), characterized in that: The driving device (5) comprises four lifting rods (51) respectively arranged at four corners of the frame body (1), a left transmission assembly (52) arranged on the frame body and used for driving two of the lifting rods, and a right transmission assembly (53) arranged on the frame body and used for driving the other two lifting rods; the left transmission assembly (52) and the right transmission assembly (53) are identical in structure; the left transmission assembly comprises a rotating shaft (521) arranged on the frame body (1), a worm (522) fixed on the rotating shaft (521), two driven shafts (523) rotatably arranged on the frame body (1) and located on both sides of the worm (522), two worm gears (524) respectively fixedly sleeved on the two driven shafts and arranged in mesh with the worm, two connecting rods (525) respectively rotatably arranged on two of the lifting rods (51), a first rotating rod (526) having one end fixedly sleeved on one of the driven shafts (523), a second rotating rod (527) having one end fixedly sleeved on the other driven shaft (523), a first slot (528) penetrating through the first rotating rod, and a second slot (529) penetrating through the second rotating rod; the two connecting rods (525) are respectively arranged to roll in the first slot (528) and the second slot (529); the first rotating rod (526) and the second rotating rod (527) are symmetrically arranged; the worm (522) on the left transmission assembly (52) is provided with a right thread; and the worm (522) on the right transmission assembly (53) is provided with a reverse thread.

2. A multi-functional walking aid as claimed in claim 1, wherein: The driving device (5) further comprises a moving frame (54) slidably arranged on the frame body (1), a first gear (55) fixedly sleeved on the rotating shaft of the left transmission assembly (52), a second gear (56) fixedly sleeved on the rotating shaft of the right transmission assembly (53), a first rack (57) fixedly arranged on the moving frame (54) and engaged with the first gear, a second rack (58) fixedly arranged on the moving frame (54) and engaged with the second gear, a screw rod (59) penetrating through the moving frame (54), a self-locking motor (510) fixedly connected with one end of the screw rod (59) and used for driving the screw rod (59) to rotate, and a switch (511) fixedly arranged on the handrail frame (2); the switch (511) is electrically connected with the self-locking motor (510) and used for controlling the opening and closing of the self-locking motor.

3. A multi-functional walking aid as claimed in claim 2, wherein: The stabilizing device (4) comprises two guide grooves (41) symmetrically arranged on the moving frame (54), a sliding groove (42) arranged on the frame body (1), a first sliding block (43) and a second sliding block (44) symmetrically and slidingly arranged in the sliding groove (42), a first guide rod (45) fixedly arranged on the first sliding block (43), a second guide rod (46) fixedly arranged on the second sliding block (44), a first front shaft (47) coaxial with the roller and rotatingly arranged on the first sliding block (43), a second front shaft (48) coaxial with the roller and rotatingly arranged on the second sliding block (44), a first auxiliary wheel (49) rotatingly arranged on the first front shaft (47), and a second auxiliary wheel (410) rotatingly arranged on the second front shaft (48).

4. A multi-functional walking aid as claimed in claim 3, wherein: The stabilizing device (4) further comprises a sliding rail (411) fixedly arranged on the frame body (1), a third sliding block (412) slidingly arranged on the sliding rail (411), a connecting block (413) fixedly arranged at two ends of the moving frame (54) and the third sliding block (412) respectively, and a third auxiliary wheel (414) rotatingly arranged on the third sliding block (412).

5. The multi-functional walking aid as claimed in claim 1, wherein: The infusion support (3) comprises an adjusting rod (31) fixedly arranged at a lower end of the handrail frame (2), and a plurality of hooks (32) fixedly arranged at an upper end of the adjusting rod.

6. The multi-functional walking aid of claim 1, wherein: The resistance device (7) comprises a brake pad (71) attached to the roller, a trapezoidal block (72) fixedly arranged on the frame body (1), a sliding plate (73) slidingly arranged on the trapezoidal block (72), two vertical rods (74) slidingly arranged at one end on the sliding plate (73) and fixedly arranged at the other end on the brake pad (71), two springs (75) fixedly arranged on the sliding plate (73) and in contact with the brake pad (71), and a gas pressure assembly (76) fixedly arranged on the frame body (1) and used for providing a downward pushing force of the sliding plate.

7. A multi-functional walking aid as claimed in claim 6, characterized in that: The gas pressure assembly (76) comprises a hollow tube (761) fixedly arranged on the frame body (1), a push rod (762) movably arranged at one end in the hollow tube (761) and fixedly arranged at the other end on the sliding plate (73), a tension spring (763) fixedly arranged at one end in the hollow tube (761) and fixedly arranged at the other end on the push rod (762), and an air inlet tube (764) fixedly arranged at an upper end of the hollow tube (761); the air inlet tube is used for injecting air into the hollow tube.

8. A multi-functional walking aid as claimed in claim 7, characterized in that: The gas pressure assembly (76) further comprises a compression cavity (765) fixedly arranged on the handrail frame (2), a compression block (766) slidingly arranged at a lower end of the compression cavity (765), and an air outlet tube (767) fixedly arranged on the compression cavity and in communication with the compression cavity; the air outlet tube (767) is connected with the air inlet tube (764) through a hose.

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