Telescopic pipe adjusting lock mechanism for wheel type walking aid

Abstract

A telescopic pipe adjusting lock mechanism for a wheel type walking aid comprises a vertically-through pipe sleeve, a protruding part is arranged on the side face of the pipe sleeve, a button containing groove is formed in the protruding part, a lifting lock button is arranged in the button containing groove, the upper portion of the lifting lock button is elastic, and the lower portion of the lifting lock button is elastic. When the upper portion of the lifting lock button is pressed down, the lower portion of the lifting lock button moves outwards, a lock pin is arranged on the lower portion of the lifting lock button, and one end of the lock pin extends into the pipe sleeve. The pipe sleeve is connected to the top of a sleeve of the wheel type walking aid and allows the telescopic pipe to penetrate through, a plurality of inserting holes are formed in the telescopic pipe in an up-down mode, in the using state, one end of the lock pin is inserted into one inserting hole, when the height of the telescopic pipe needs to be adjusted, the upper portion of the lifting lock button is pressed down, the lower portion of the lifting lock button moves outwards at the moment, and the telescopic pipe is locked. Therefore, the lock pin is driven to move outwards, one end of the lock pin is separated from an originally matched insertion hole, and at the moment, the telescopic pipe can stretch out and draw back along the pipe sleeve.

Description

Technical Field

[0001] The utility model relates to the field of walking assistive devices, in particular to a telescopic tube adjustment lock mechanism for a wheeled walker. Background Art

[0002] A walker is an assistive device used for support, balance, and mobility assistance. It is widely used by the elderly, the disabled, and those with limited mobility. A wheeled walker is a type of walker. Existing wheeled walkers include a left frame and a right frame of identical and symmetrical structure. Each frame includes a wheel bracket, a sleeve, and a telescopic tube. The bottom of the sleeve is connected to the wheel bracket. The telescopic tube is liftably mounted within the sleeve. A handle is provided on the top of the telescopic tube. To accommodate different user heights, the telescopic tube can be extended and retracted as needed. However, the existing telescopic tube's telescopic method is inconvenient to operate. For example, patent document CN215132792U discloses a folding walker. The armrest bracket of this folding walker is extended and retracted by loosening and tightening thumb screws. This method is relatively inconvenient to operate, and the user needs to spend more time loosening and tightening the thumb screws. Utility Model Content

[0003] The utility model provides a telescopic tube adjustment lock mechanism for a wheeled walker, the main purpose of which is to overcome the problem of inconvenient telescopic operation of the telescopic tube of the existing walker.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A telescopic tube adjustment lock mechanism for a wheeled walker comprises a tube sleeve extending vertically therethrough, a convex portion provided on the side of the tube sleeve, a button placement slot provided on the convex portion, a lift lock button provided in the button placement slot, the upper portion of the lift lock button being elastic, and when the upper portion of the lift lock button is pressed, the lower portion of the lift lock button moves outward, and a lock pin is provided at the lower portion of the lift lock button, one end of which extends into the tube sleeve.

[0006] Furthermore, two first pin holes are arranged on the left and right in the middle of the convex portion, and two second pin holes are arranged on the left and right in the middle of the lifting lock button. A button connecting pin is provided between the two first pin holes, and the button connecting pin passes through the two second pin holes.

[0007] Furthermore, a left limit portion and a right limit portion are provided at the lower portion of the lifting lock button, and the end of the locking pin away from the pipe sleeve is located between the left limit portion and the right limit portion, and the left limit portion and the right limit portion are respectively provided with a third pin hole passing through the left and right and a fourth pin hole passing through the left and right, and a lock pin connecting pin is passed through the third pin hole and the fourth pin hole, and the lock pin connecting pin passes through the lock pin.

[0008] Furthermore, a spring is provided between the upper inner side of the lifting lock button and the end surface of the button placement groove.

[0009] Furthermore, a lock pin hole communicating with the interior of the pipe sleeve is provided at the lower portion of the button placement groove, and one end of the lock pin passes through the lock pin hole.

[0010] Furthermore, a finger pressing groove is provided on the upper outer side surface of the lifting lock button.

[0011] As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following advantages: the sleeve is connected to the top of the sleeve of the wheeled walker and allows the telescopic tube to pass through. The telescopic tube is provided with multiple sockets arranged vertically. In use, one end of the locking pin is inserted into one of the sockets. When the telescopic tube needs to be adjusted in height, the upper portion of the lift lock button is pressed. At this time, the lower portion of the lift lock button moves outward, thereby driving the locking pin to move outward, causing one end of the locking pin to separate from the originally mating socket, allowing the telescopic tube to be extended and retracted along the sleeve. When the telescopic tube is adjusted to the desired position, the lift lock button is released. The lower portion of the lift lock button is reset, allowing one end of the locking pin to be reinserted into another socket. The present invention is easy to operate. The telescopic tube can be extended and retracted by simply pressing the lift lock button. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural diagram of the utility model.

[0013] Figure 2 This is a structural exploded view of the present invention.

[0014] Figure 3 This is a structural diagram of the utility model from another angle.

[0015] Figure 4 This is a structural exploded view of the utility model and the telescopic tube. DETAILED DESCRIPTION

[0016] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0017] Reference Figure 1 and Figure 2 A telescopic tube adjustment lock mechanism for a wheeled walker comprises a tube housing 1 extending vertically therethrough. A convex portion 2 is provided on the side of the tube housing 1. A button receiving slot 3 is provided within the button receiving slot 3. A lift lock button 4 is located within the button receiving slot 3. The upper portion of the lift lock button 4 is elastic. When the upper portion of the lift lock button 4 is pressed, the lower portion of the lift lock button 4 moves outward. A lock pin 5 is provided at the lower portion of the lift lock button 4, one end of which extends into the tube housing 1.

[0018] Reference Figures 1 to 3 The middle portion of the protrusion 2 is provided with two first pin holes 21 arranged on the left and right, and the middle portion of the lift lock button 4 is provided with two second pin holes 41 arranged on the left and right. A button connecting pin 6 is provided between the two first pin holes 41. The button connecting pin 6 passes through the two second pin holes 41. The lift lock button 4 is hinged to the button placement slot 3 via the button connecting pin 6. A spring 7 is provided between the upper portion of the lift lock button 4 and the end surface of the button placement slot 3. Specifically, a first column 31 is provided on the upper portion of the end surface of the button placement slot 3, and a second column 42 is provided on the upper portion of the lift lock button 4. The two ends of the spring 7 are respectively sleeved on the outer circumference of the first column 31 and the outer circumference of the second column 42.

[0019] Reference Figures 1 to 3 The lower portion of the lift lock button 4 is provided with a left limit portion 43 and a right limit portion 44. The end of the lock pin 5 away from the pipe sleeve 1 is located between the left limit portion 43 and the right limit portion 44. The left limit portion 43 and the right limit portion 44 are respectively provided with a third pin hole 45 and a fourth pin hole 46 that pass through the left and right sides. A lock pin connecting pin 8 is passed through the third pin hole 45 and the fourth pin hole 46. The lock pin connecting pin 8 passes through the lock pin 5. The lower portion of the button placement groove 3 is provided with a lock pin hole 32 that communicates with the interior of the pipe sleeve 1. One end of the lock pin 5 passes through the lock pin hole 32. The lock pin 5 is connected to the lift lock button 4 via the lock pin connecting pin 8. The upper outer side surface of the lift lock button 4 is provided with a finger pressing groove 47. The design of the finger pressing groove 47 conforms to the ergonomics of finger pressing, making it more comfortable to press with the finger.

[0020] Reference Figures 1 to 4 The design principle of the present utility model is as follows: the pipe sleeve 1 is connected to the top of the sleeve of the wheeled walker and is used for the telescopic tube 9 to pass through. The telescopic tube 9 is provided with a plurality of sockets 91 arranged up and down. In the use state, one end of the lock pin 5 is inserted into one of the sockets 91. When the telescopic tube 9 needs to be adjusted in height, the upper part of the lifting lock button 4 is pressed. At this time, the lower part of the lifting lock button 4 moves outward, thereby driving the lock pin 5 to move outward, so that one end of the lock pin 5 is separated from the original matching socket 91, and the telescopic tube can be extended and retracted along the pipe sleeve 1. When the telescopic tube 9 is adjusted to the desired position, the lifting lock button 4 is released. Under the action of the spring 7, the lower part of the lifting lock button 4 is reset, and one end of the lock pin 5 is reinserted into the other socket 91.

[0021] The above is only a specific implementation method of the present invention, but the design concept of the present invention is not limited to this. Any non-substantial changes to the present invention using this concept shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. A telescopic tube adjustment lock mechanism for a wheeled walker, characterized by: The utility model comprises a pipe sleeve which passes through from top to bottom, a convex portion is provided on the side of the pipe sleeve, a button placement groove is provided on the convex portion, a lifting lock button is provided in the button placement groove, the upper portion of the lifting lock button is elastic, and when the upper portion of the lifting lock button is pressed, the lower portion of the lifting lock button moves outward, and a lock pin is provided on the lower portion of the lifting lock button, and one end of the lock pin extends into the pipe sleeve.

2. The telescopic tube adjustment lock mechanism for a wheeled walker according to claim 1, characterized in that: Two first pin holes are arranged on the left and right in the middle of the convex part, and two second pin holes are arranged on the left and right in the middle of the lifting lock button. A button connecting pin is provided between the two first pin holes, and the button connecting pin passes through the two second pin holes.

3. The telescopic tube adjustment lock mechanism for a wheeled walker according to claim 1, characterized in that: A left limit portion and a right limit portion are provided at the lower portion of the lifting lock button, and an end of the locking pin away from the pipe sleeve is located between the left limit portion and the right limit portion. The left limit portion and the right limit portion are respectively provided with a third pin hole and a fourth pin hole that pass through the left and right sides, and a lock pin connecting pin is passed through the third pin hole and the fourth pin hole, and the lock pin connecting pin passes through the lock pin.

4. The telescopic tube adjustment lock mechanism for a wheeled walker according to claim 1, characterized in that: A spring is provided between the upper portion of the lifting lock button and the end surface of the button placement groove.

5. The telescopic tube adjustment lock mechanism for a wheeled walker according to claim 1, characterized in that: A lock pin hole communicating with the interior of the pipe sleeve is provided at the lower portion of the button placement groove, and one end of the lock pin passes through the lock pin hole.

6. The telescopic tube adjustment lock mechanism for a wheeled walker according to claim 1, characterized in that: A finger pressing groove is provided on the upper outer side surface of the lifting lock button.

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