Height adjusting telescopic mechanism of walking aid

Abstract

The utility model discloses a walking aid height adjusting telescopic mechanism which comprises a walking aid body, a fixed limiting pipe is fixedly installed at the upper end of the walking aid body, a telescopic pipe is movably connected to the inner wall of the upper end of the fixed limiting pipe in an attached mode, and a handle is fixedly installed at the top end of the telescopic pipe. A mechanism body is fixedly installed on the outer curved surface of the upper end of the fixed limiting pipe, a positioning hole is formed in the outer side of the upper end of the telescopic pipe in a penetrating mode, a vertical limiting groove is fixedly formed in the inner wall of the mechanism body, a positioning block is movably connected to the inner wall of the lower end of the vertical limiting groove in a limiting fit mode, and a supporting spring is fixedly installed on the inner side of the lower end of the vertical limiting groove. A positioning column is fixedly installed on the inner side of the lower end of the positioning block, an inclined table is arranged at the upper end of the positioning block, a pressing hole is formed in the upper end of the mechanism body in a penetrating mode, and a positioning button is movably connected to the inner wall of the pressing hole in an attached mode. According to the lifting device, the telescopic pipe and the handle can be conveniently and stably lifted.

Description

Technical Field

[0001] This utility model relates to the field of walking aid technology, specifically to a height-adjustable telescopic mechanism for a walking aid. Background Technology

[0002] A walking aid is a device that assists the human body in supporting its weight, maintaining balance, and walking; it can also be called a walking machine, walking frame, or walking assist device. Its main functions include:

[0003] Maintaining Balance: Walking aids provide additional support points to help users maintain balance, especially in cases of instability or impaired balance. Weight Support: For patients with weakened lower limb muscles or lower limb dysfunction, walking aids can distribute some of their weight, reducing the burden on the lower limbs and making walking easier. Assisted Walking: Walking aids provide a stable support platform, helping users take steps with greater confidence, thereby improving gait and walking ability. Increasing Muscle Strength: Through long-term use of walking aids for walking exercises, the muscle strength of the upper limbs and trunk can be gradually strengthened, promoting physical rehabilitation. Improving Quality of Life: Walking aids help people with mobility impairments regain or improve their ability to walk independently, enabling them to participate more freely in daily activities and improving their quality of life.

[0004] Walking aids, as tools to assist walking, are widely used among the elderly, rehabilitation patients, and other groups. However, the height adjustment mechanisms of traditional walking aids often suffer from inconvenience in adjustment and poor stability after adjustment, which can easily affect the user's experience. Utility Model Content

[0005] The purpose of this utility model is to provide a height adjustment telescopic mechanism for a walking aid, in order to solve the problems mentioned in the background art, where the height adjustment mechanism of traditional walking aids is often inconvenient to adjust and has poor stability after adjustment, which can easily affect the user's experience.

[0006] To achieve the above objectives, this utility model provides the following technical solution: It includes a walking aid body, a fixed limiting tube fixedly installed at the upper end of the walking aid body, a telescopic tube movably connected to the inner wall of the upper end of the fixed limiting tube, a handle fixedly installed at the top of the telescopic tube, a mechanism body fixedly installed on the outer curved surface of the upper end of the fixed limiting tube, a positioning hole penetrating through the outer side of the upper end of the telescopic tube, a vertical limiting groove fixedly installed on the inner wall of the mechanism body, a positioning block movably connected to the inner wall of the lower end of the vertical limiting groove, a support spring fixedly installed on the inner side of the lower end of the vertical limiting groove, a positioning post fixedly installed on the inner side of the lower end of the positioning block, a ramp opening at the upper end of the positioning block, and a pressing hole penetrating through the upper end of the mechanism body, with a positioning button movably connected to the inner wall of the pressing hole.

[0007] A vertical opening slot is provided on the outer side of the fixed limiting tube. A transmission rack is fixedly installed on the outer side of the lower end of the telescopic tube. A drive motor is fixedly installed forward on the outer side of the main body of the mechanism. A transmission shaft rod is fixedly installed on the inner side of the drive motor's transmission shaft. A transmission gear is fixedly installed on the outer curved surface of the middle part of the transmission shaft rod. A protective cover is fixedly installed on the outer side of the main body of the mechanism. A push switch is embedded at the upper end of the positioning button. A control switch for controlling the forward and reverse rotation of the drive motor is embedded on the outer side of the upper end of the main body of the mechanism.

[0008] Preferably, there are two fixed limiting tubes, which are symmetrically distributed on the upper end of the walking aid body, and there are several positioning holes, which are symmetrically distributed on the outer side of the upper end of the telescopic tube.

[0009] Preferably, a limiting boss is provided on the lower inner wall of the vertical limiting groove, and a limiting groove is provided on the lower outer side of the positioning block, with the limiting boss being fitted and movably connected to the inner wall of the limiting groove.

[0010] Preferably, the supporting spring is fixedly installed on the inner side of the lower end of the positioning block on the side away from the vertical limiting groove, the positioning post is movably connected to the inner wall of the positioning hole, the outer end of the positioning post has a rounded corner, the lower end of the positioning button is movably connected to the upper end of the inclined platform, and the diameter of the lower end of the positioning button is larger than the inner wall of the pressing hole.

[0011] Preferably, the vertical opening slot extends upward through the main body of the mechanism, and the outer side of the transmission rack is movably connected to the inner wall of the vertical opening slot.

[0012] Preferably, the transmission shaft is rotatably connected to the outside of the main body of the mechanism via a bearing seat, and the transmission gear is meshed with the upper end of the transmission rack.

[0013] Preferably, a mobile control power supply is fixedly installed inside the protective cover, and a charging port is provided at the bottom of the mobile control power supply.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] When the drive motor is selected to rotate forward, pressing the positioning button downwards causes the positioning block to move backwards in a straight line via the inclined platform. As the positioning block moves backwards, it pushes and compresses the support spring outwards, simultaneously causing the positioning pin to move outwards along the inner wall of the positioning hole. When the positioning pin moves outwards, it releases the limiting positioning of the telescopic tube. At the same time, pressing the positioning button downwards activates the press switch. When the press switch is activated, it drives the drive motor to rotate. When the drive motor rotates, it drives the transmission gear to rotate. When the transmission gear rotates, the force generated by the meshing connection between the transmission gear and the transmission rack causes the telescopic tube to move upwards in a straight line along the inner wall of the fixed limiting tube. When the telescopic tube moves upwards in a straight line, it causes the handle to extend upwards.

[0016] This utility model also allows the telescopic tube and handle to be adjusted to the desired height, and the positioning button to be released. Under the action of the support spring, the positioning button and positioning block will reset. When the positioning block resets, it will drive the positioning pin to be inserted into the inner wall of the positioning hole, so that the telescopic tube remains stable, thereby facilitating the stable raising and lowering of the telescopic tube and handle. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a height-adjustable telescopic mechanism for a walking aid according to this utility model;

[0018] Figure 2 This is a partial structural diagram of a height-adjustable telescopic mechanism for a walking aid according to this utility model. Figure 1 ;

[0019] Figure 3 This is a partial structural diagram of a height-adjustable telescopic mechanism for a walking aid according to this utility model. Figure 2 ;

[0020] Figure 4 This is a partial cross-sectional view of the height adjustment telescopic mechanism of a walking aid according to the present invention. Figure 1 ;

[0021] Figure 5 This is a partial cross-sectional view of the height adjustment telescopic mechanism of a walking aid according to the present invention. Figure 2 .

[0022] In the diagram: 1. Walking aid body; 2. Fixed limiting tube; 3. Telescopic tube; 4. Handle; 5. Mechanism body; 6. Vertical limiting groove; 7. Positioning block; 8. Limiting boss; 9. Limiting groove; 10. Support spring; 11. Positioning post; 12. Inclined platform; 13. Pressing hole; 14. Positioning button; 15. Vertical opening groove; 16. Transmission rack; 17. Transmission shaft; 18. Transmission gear; 19. Protective cover; 20. Mobile control power supply; 21. Press switch; 22. Control switch; 23. Positioning hole; 24. Drive motor. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5 This utility model provides a technical solution for a height-adjustable telescopic mechanism for a walking aid: It includes a walking aid body 1, with two fixed limiting tubes 2 fixedly installed on the upper end of the body 1, symmetrically distributed around the upper end of the body 1. A telescopic tube 3 is movably connected to the inner wall of the upper end of the fixed limiting tube 2, and a handle 4 is fixedly installed at the top of the telescopic tube 3. A mechanism body 5 is fixedly installed on the outer curved surface of the upper end of the fixed limiting tube 2. A positioning hole 23 is provided through the outer side of the upper end of the telescopic tube 3, symmetrically distributed around the outer side of the upper end of the telescopic tube 3. A vertical limiting groove 6 is fixedly installed on the inner wall of the mechanism body 5. A positioning block 7 is movably connected to the lower inner wall of the vertical limiting groove 6, and a limiting boss 8 is provided on the lower inner wall of the vertical limiting groove 6. A limiting groove 9 is provided on the outer side of the lower end of the positioning block 7, and the limiting boss 8 is movably connected to the inner wall of the limiting groove 9. The positioning block 7 is linearly limited by the limiting boss 8 and the limiting groove 9. A support spring 10 is fixedly installed on the inner side of the lower end of the vertical limiting groove 6. The side of the support spring 10 away from the vertical limiting groove 6 is fixedly installed on the inner side of the lower end of the positioning block 7, so that the positioning block 7 is elastically supported by the support spring 10. A positioning post 11 is fixedly installed on the inner side of the lower end of the positioning block 7, and the positioning post 11 is movably connected to the inner wall of the positioning hole 23. The outer end of the positioning post 11 has a rounded corner, so that the telescopic tube 3 is limited and positioned by the positioning hole 23 and the positioning post 11, so that the telescopic tube 3 remains stable during use. A ramp 12 is opened at the upper end of the positioning block 7. A pressing hole 13 is opened through the upper end of the main body 5. A positioning button 14 is movably connected to the inner wall of the pressing hole 13, and the lower end of the positioning button 14 is movably connected to the upper end of the ramp 12. The diameter of the lower end of the positioning button 14 is larger than the inner wall of the pressing hole 13.

[0025] A vertical opening slot 15 is provided on the outer side of the fixed limiting tube 2, and the vertical opening slot 15 extends upward through the main body 5 of the mechanism. A transmission rack 16 is fixedly installed on the outer side of the lower end of the telescopic tube 3, and the outer side of the transmission rack 16 is movably connected to the inner wall of the vertical opening slot 15, so that the transmission rack 16 can be linearly moved and limited through the vertical opening slot 15. A drive motor 24 is fixedly installed forward on the outer side of the main body 5. A transmission shaft rod 17 is fixedly installed on the inner side of the drive motor 24, and the transmission shaft rod 17 is rotatably connected to the outer side of the main body 5 through a bearing seat. A transmission gear 18 is fixedly installed on the outer curved surface of the middle part of the moving shaft 17, and the transmission gear 18 is meshed with the upper end of the transmission rack 16. A protective cover 19 is fixedly installed on the outer side of the main body 5, and a mobile control power supply 20 is fixedly installed on the inner side of the protective cover 19. A charging port is opened at the bottom of the mobile control power supply 20. A push switch 21 is embedded in the upper end of the positioning button 14, so that the drive motor 24 can be controlled and turned on by pressing the push switch 21 in conjunction with the mobile control power supply 20. A control switch 22 for controlling the forward and reverse rotation of the drive motor 24 is embedded in the outer side of the upper end of the main body 5.

[0026] Working principle: In use, when the telescopic tube 3 and handle 4 need to be extended, the drive motor 24 is controlled to rotate forward via the control switch 22. After the drive motor 24 is selected to rotate forward, the positioning button 14 is pressed down. When the positioning button 14 is pressed down, it pushes the positioning block 7 to move backward linearly via the inclined platform 12. When the positioning block 7 moves backward linearly, it pushes the compression support spring 10 outward, and at the same time, it drives the positioning pin 11 to move outward linearly along the inner wall of the positioning hole 23. When the positioning pin 11 moves outward linearly, it releases the limiting positioning of the telescopic tube 3. At the same time, when the positioning button 14 is pressed down, it presses and opens the press switch 21. When the press switch 21 is opened... This will drive the drive motor 24 to rotate. When the drive motor 24 rotates, it will drive the transmission gear 18 to rotate. When the transmission gear 18 rotates, the force generated by the meshing connection between the transmission gear 18 and the transmission rack 16 will drive the telescopic tube 3 to move upward linearly along the inner wall of the fixed limit tube 2. When the telescopic tube 3 moves upward linearly, it will drive the handle 4 to extend upward. When the telescopic tube 3 and the handle 4 are adjusted to the desired height, the positioning button 14 is released. Under the action of the support spring 10, the positioning button 14 and the positioning block 7 are reset. When the positioning block 7 is reset, it will drive the positioning pin 11 to insert into the inner wall of the positioning hole 23, so that the telescopic tube 3 remains stable, thereby facilitating the stable raising and lowering of the telescopic tube 3 and the handle 4.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A height-adjustable telescopic mechanism for a walking aid, characterized in that: The device includes a walking aid body (1), a fixed limiting tube (2) fixedly installed on the upper end of the walking aid body (1), a telescopic tube (3) movably connected to the inner wall of the upper end of the fixed limiting tube (2), a handle (4) fixedly installed on the top of the telescopic tube (3), a mechanism body (5) fixedly installed on the outer curved surface of the upper end of the fixed limiting tube (2), a positioning hole (23) penetrating through the outer side of the upper end of the telescopic tube (3), and a vertical limiting device fixedly installed on the inner wall of the mechanism body (5). The vertical limiting groove (6) has a positioning block (7) that is movably connected to the lower inner wall of the vertical limiting groove (6). A support spring (10) is fixedly installed on the lower inner side of the vertical limiting groove (6). A positioning column (11) is fixedly installed on the lower inner side of the positioning block (7). A ramp (12) is opened at the upper end of the positioning block (7). A pressing hole (13) is opened through the upper end of the main body of the mechanism (5). A positioning button (14) is movably connected to the inner wall of the pressing hole (13). The fixed limiting tube (2) has a vertical opening groove (15) on its outer side. The telescopic tube (3) has a transmission rack (16) fixedly installed on its lower outer side. The main body of the mechanism (5) has a drive motor (24) fixedly installed forward on its outer side. The drive shaft part of the drive motor (24) has a transmission shaft rod (17) fixedly installed. The outer curved surface of the middle part of the transmission shaft rod (17) has a transmission gear (18) fixedly installed. The main body of the mechanism (5) has a protective cover (19) fixedly installed on its outer side. The positioning button (14) has a push switch (21) embedded at its upper end. The main body of the mechanism (5) has a control switch (22) embedded on its upper outer side for controlling the forward and reverse rotation of the drive motor (24).

2. The height adjustment and telescopic mechanism for a walking aid according to claim 1, characterized in that: There are two fixed limiting tubes (2), which are symmetrically distributed on the upper end of the walking aid body (1). There are several positioning holes (23), which are symmetrically distributed on the outer side of the upper end of the telescopic tube (3).

3. The height adjustment and telescopic mechanism for a walking aid according to claim 2, characterized in that: A limiting boss (8) is provided on the lower inner wall of the vertical limiting groove (6), and a limiting groove (9) is provided on the lower outer side of the positioning block (7), and the limiting boss (8) is movably connected to the inner wall of the limiting groove (9).

4. The height adjustment and telescopic mechanism for a walking aid according to claim 3, characterized in that: The supporting spring (10) is fixedly installed on the inner side of the lower end of the positioning block (7) away from the vertical limiting groove (6). The positioning post (11) is movably connected to the inner wall of the positioning hole (23). The outer end of the positioning post (11) is rounded. The lower end of the positioning button (14) is movably connected to the upper end of the inclined platform (12). The diameter of the lower end of the positioning button (14) is larger than the inner wall of the pressing hole (13).

5. The height adjustment and telescopic mechanism for a walking aid according to claim 4, characterized in that: The vertical opening groove (15) extends upward through the main body of the mechanism (5), and the outer side of the transmission rack (16) is movably connected to the inner wall of the vertical opening groove (15).

6. The height adjustment and telescopic mechanism for a walking aid according to claim 5, characterized in that: The transmission shaft (17) is rotatably connected to the outside of the main body (5) of the mechanism through a bearing seat, and the transmission gear (18) is meshed with the upper end of the transmission rack (16).

7. The height adjustment and telescopic mechanism for a walking aid according to claim 6, characterized in that: A mobile control power supply (20) is fixedly installed inside the protective cover (19), and a charging port is provided at the bottom of the mobile control power supply (20).

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