Anti-backward-falling walking stick and using method thereof

Abstract

The invention mainly solves the problem of how to enable a walking stick to prevent a human body from toppling backwards to a certain extent. An anti-backward-falling walking stick is characterized in that the anti-backward-falling walking stick comprises stick-shaped structures, a main rotating shaft, a telescopic structure and a locking structure, the number of the stick-shaped structures is two, the main rotating shaft is installed at the upper ends of the two stick-shaped structures, and the two stick-shaped structures can rotate around the main rotating shaft to be combined and opened; when the telescopic structure is bounced off, the two stick-shaped structures are opened, the bouncing-off length of the telescopic structure is limited, the opening angle of the two stick-shaped structures can be limited, and when the telescopic structure is compressed, the limiting structure is blocked by the lower end of the pressing rod, and the telescopic structure is prevented from being automatically bounced off. The anti-falling crutch has the beneficial effects that the anti-falling crutch can be used as a common crutch at ordinary times and can also be quickly unfolded when the crutch is in danger of falling, and the two stick-shaped structures can be in contact with the ground at the same time to keep a human body stable, and particularly can prevent the human body from falling backwards.

Description

Technical Field

[0001] The present invention relates to the technical field of crutch, in particular to a crutch for preventing backward falls. Background Art

[0002] A cane is a handheld stick-shaped device used to prevent falls. Current crutches only have a stick-shaped structure, which is effective in preventing the human body from falling forward, but cannot effectively prevent falling backward. Falling backward is often more likely to cause serious injuries, especially for the elderly. This problem needs to be solved urgently. Summary of the Invention

[0003] The main problem solved by the present invention is how to enable the crutch to prevent the human body from falling backwards to a certain extent.

[0004] A backward-fall prevention crutch, characterized in that it includes a stick-shaped structure, a main rotating shaft, a telescopic structure, and a locking structure. The stick-shaped structures have two, and the main rotating shaft is installed at the upper ends of the two stick-shaped structures. The two stick-shaped structures can rotate around the main rotating shaft to achieve merging and opening. The telescopic structure includes a spring, an inner cylinder, an outer cylinder, and a limiting structure. The inner cylinder and the outer cylinder are two cylinders, and the outer cylinder has a limiting structure. The inner cylinder and the outer cylinder are nested, and a spring is provided between the inner cylinder and the outer cylinder. The two ends of the telescopic structure are respectively connected to the two stick-shaped structures, and the two stick-shaped structures are combined. When the telescopic structure is compressed, the two stick-shaped structures are opened when the telescopic structure pops open, and the length of the telescopic structure that pops open is limited, which can limit the opening angle of the two stick-shaped structures. The locking structure includes a pressing rod and a return spring. When the telescopic structure is compressed, the limiting structure is blocked by the lower end of the pressing rod to prevent the telescopic structure from automatically popping open. When the pressing rod is pressed, the pressing rod disengages from the limiting structure, the telescopic structure pops open, and the two stick-shaped structures are separated. When the pressing stops, the return spring restores the position of the pressing rod.

[0005] The beneficial effect is that, normally, the two stick-shaped structures are combined, the telescopic structure is compressed, and the limiting structure is blocked by the pressing rod, preventing the telescopic structure from automatically springing open, and being used as an ordinary crutch; when the human body is standing unsteadily, the pressing rod is pressed, the lower end of the pressing rod is disengaged from the limiting structure, the telescopic structure springs open, the two stick-shaped structures are separated, and the length of the telescopic structure springing open is limited, which can limit the angle of opening of the two stick-shaped structures. When the upper end of the anti-fall crutch is held, the two stick-shaped structures are respectively located in front and behind the human body, and the human body and the two stick-shaped structures form a triangle, which keeps the human body standing stably and can prevent the human body from falling backwards. The anti-fall crutch can be used as an ordinary crutch in normal times, and can also be quickly opened when there is a risk of falling. The two stick-shaped structures can contact the ground at the same time, keeping the human body stable, especially preventing the human body from falling backwards, and has relatively significant practical value.

[0006] The limiting structure is located at the upper end of the outer cylinder. The limiting structure is in the shape of a barb with its hook opening facing downward. The lower end of the pressing end is in the shape of a barb with its hook opening facing upward. When the two stick-shaped structures are merged, the hook opening of the limiting structure slides into the hook opening of the lower end of the pressing rod, and the two hook openings are interlocked. The upper end of the pressing rod is installed on the upper end of the stick-shaped structure. When the upper end of the pressing rod is pressed, the lower end of the pressing rod descends, and the limiting structure is disengaged from the two hook openings at the lower end of the pressing rod, and the two stick-shaped structures are bounced open.

[0007] The beneficial effect is that the limiting structure can open the two stick-shaped structures by simply pressing the pressing rod, which is simple and quick to operate. When the two stick-shaped structures are merged, the two hooks are interlocked, and the merging is also convenient to operate.

[0008] The hook end of the lower end of the pressing end is in the form of an inclined surface. When the two stick-shaped structures are merged, the hook end of the limiting structure slides along the inclined surface. At the same time, the return spring is compressed, and the position of the pressing end moves downward, so that the hook end of the limiting structure can slide along the inclined surface into the hook end of the lower end of the pressing end.

[0009] The beneficial effect is that the hook end of the lower end of the pressing end is inclined, so that the hook end of the limiting structure can slide into the hook end of the lower end of the pressing end along the inclined surface, ensuring that the two stick-shaped structures are smoothly merged.

[0010] The inner cylinder is connected to one of the stick-shaped structures via a rotating shaft, and the outer cylinder is connected to the other stick-shaped structure via a rotating shaft. When the two stick-shaped structures are combined or opened, the inner cylinder and the outer cylinder rotate around the rotating shaft.

[0011] The beneficial effect is that, since the angle between the telescopic structure and the two stick-shaped structures changes when the telescopic structure is extended or retracted, when the two stick-shaped structures are merged or opened, the inner cylinder and the outer cylinder rotate around the rotating shaft, thereby ensuring the required angle for the telescopic structure to be extended or retracted. At the same time, the rotating shaft ensures the effective connection between the two ends of the telescopic structure and the two stick-shaped structures, thus achieving multiple goals at one stroke.

[0012] A retaining ring is fixed on the pressing rod, the pressing rod passes through the return spring, and the return spring is located under the retaining ring; a ring is fixed on the stick-shaped structure, the pressing rod passes through the ring, and the spring is located on the ring.

[0013] The beneficial effect is that the retaining ring and the annular object limit the position of the reset spring up and down. When the pressing rod is pressed downward, the spring is compressed. When the pressing rod stops being pressed, the reset spring is reset and the position of the pressing rod is also reset upward.

[0014] A limiting ring is also fixed on the stick-shaped structure, the pressing rod passes through the limiting ring, and the retaining ring is located under the limiting ring, and when installed, the return spring is compressed by the ring and the limiting ring at both ends; the cross-section of the pressing rod is rectangular, and the inner ring of the ring and the limiting ring is also a rectangle of the same size.

[0015] The beneficial effect is that when installed, the return spring is compressed by both ends of the ring and the limiting ring, that is, the return spring is compressed when the pressing rod is not pressed, which is convenient for accurately restoring its position when the pressing of the pressing rod stops, and is also beneficial for accurately controlling the position of the lower end of the pressing rod when the pressing stops, so that the limiting structure can enter the lower end of the hook-shaped pressing rod; the cross-section of the pressing rod is rectangular, and the inner ring of the ring and the limiting ring is also a rectangle of the same size, ensuring that the pressing rod can move up and down in the ring and the limiting ring, while preventing the pressing rod from rotating, so that the hook end of the limiting structure can slide into the hook end of the lower end of the pressing end, ensuring that the two stick-shaped structures are smoothly merged.

[0016] One of the two stick-shaped structures is longer than the other, which is called the main stick-shaped structure. The upper end of the main stick-shaped structure is higher than the main rotating shaft. The upper end of the main stick-shaped structure has a handle, and the upper end of the pressing rod is located at the handle.

[0017] The beneficial effect is that the upper end of the main stick-shaped structure has a handle, which can be used as an ordinary crutch by holding the handle. The upper end of the pressing rod is located at the handle, which makes it easy to press the pressing rod in time when you are about to fall.

[0018] There is a block at the end of the inner tube, which protrudes from the outer wall of the side of the inner tube. There is a long slot on the side of the outer tube, and the block can slide in the slot. When the telescopic structure is opened to a certain extent, the block and the slot are interlocked, so that the length of the telescopic structure that is ejected is limited, which can limit the opening angle of the two stick-shaped structures.

[0019] The beneficial effect is that the locking block and the locking slot are interlocked to limit the opening angle of the two stick-shaped structures. At the same time, the spring therein springs the telescopic structure open, maintaining the stability of the telescopic structure when extended and the stability of the crutch when opened for use.

[0020] The outer diameter of the inner tube end is greater than the inner diameter of the outer tube end. When the telescopic structure is opened to a certain extent, the two ends are interlocked, so that the length of the telescopic structure to be ejected is limited, which can limit the opening angle of the two stick-shaped structures.

[0021] The beneficial effect is that the two ends are interlocked, which can limit the opening angle of the two stick-shaped structures. At the same time, the spring therein springs the telescopic structure open, maintaining the stability of the telescopic structure when extended and the stability of the crutch when opened for use.

[0022] The usage of the described anti-falling crutch is characterized by comprising the steps of: Normally, the two stick-shaped structures are combined, the telescopic structure is compressed, and the limiting structure is blocked by the pressing rod to prevent the telescopic structure from automatically springing open, so that the cane can be used as an ordinary crutch; When the human body is standing unsteadily, the pressing rod is pressed, and the lower end of the pressing rod is separated from the limiting structure, the telescopic structure pops up, and the two stick-shaped structures are separated. The length of the telescopic structure that pops up is limited, which can limit the opening angle of the two stick-shaped structures. The upper end of the anti-fall crutch is held, so that the two stick-shaped structures are respectively located in front and behind the human body, and the human body and the two stick-shaped structures form a triangle, which keeps the human body standing stably and can prevent the human body from falling backwards.

[0023] The beneficial effect is that the anti-fall crutch can be used as an ordinary crutch in normal times, and can also be quickly expanded when there is a risk of falling. The two stick-shaped structures can contact the ground at the same time to keep the human body stable, especially to prevent the human body from falling backwards, and has relatively significant practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 . A schematic diagram of the overall structure of an embodiment; Figure 2 .Schematic diagram of telescopic structure; Figure 3 .Schematic diagram of the side structure of the telescopic structure after removing the outer cylinder; Figure 4 .Schematic diagram of the limiting structure; Figure 5 .Schematic diagram of the structure after the limit structure is pressed; Figure 6 .Schematic diagram of the overall structure after opening; Figure 7 .Schematic diagram of the telescopic structure after opening; Figure 8 . A schematic diagram of the overall structure of an embodiment; Figure 9 .Schematic diagram of the telescopic structure.

[0025] In the figure: 1. stick-shaped structure, 2. main rotating shaft, 3. telescopic structure, 4. locking structure, 31. spring, 32. inner cylinder, 33. outer cylinder, 34. limiting structure, 41. pressing rod, 42. return spring, 341. hook mouth of limiting structure, 411. lower end of pressing end, 4111. hook mouth of lower end of pressing end, 5. rotating shaft, 43. retaining ring, 11. ring, 12. limiting ring, 6. handle, 412. upper end of pressing rod, 321. block, 331. slot, 322. end of inner cylinder, 332. end of outer cylinder. DETAILED DESCRIPTION Example

[0026] like Figure 1-7 As shown, a backward-fall prevention crutch is characterized in that it includes a stick-shaped structure, a main rotating shaft, a telescopic structure, and a locking structure. The stick-shaped structures have two, and the main rotating shaft is installed at the upper ends of the two stick-shaped structures. The two stick-shaped structures can rotate around the main rotating shaft to achieve merging and opening. The telescopic structure includes a spring, an inner cylinder, an outer cylinder, and a limiting structure. The inner cylinder and the outer cylinder are two cylinders, and the outer cylinder has a limiting structure. The inner cylinder and the outer cylinder are nested, and a spring is provided between the inner cylinder and the outer cylinder. The two ends of the telescopic structure are respectively connected to the two stick-shaped structures. The two stick-shaped structures When the telescopic structure is merged, it is compressed. When the telescopic structure pops open, the two stick-shaped structures are opened, and the length of the telescopic structure that pops open is limited, which can limit the opening angle of the two stick-shaped structures. The locking structure includes a pressing rod and a return spring. When the telescopic structure is compressed, the limiting structure is blocked by the lower end of the pressing rod to prevent the telescopic structure from automatically popping open. When the pressing rod is pressed, the pressing rod disengages from the limiting structure, the telescopic structure pops open, and the two stick-shaped structures are separated. When the pressing stops, the return spring restores the position of the pressing rod.

[0027] The limiting structure is located at the upper end of the outer cylinder. The limiting structure is in the shape of a barb with its hook opening facing downward. The lower end of the pressing end is in the shape of a barb with its hook opening facing upward. When the two stick-shaped structures are merged, the hook opening of the limiting structure slides into the hook opening of the lower end of the pressing rod, and the two hook openings are interlocked. The upper end of the pressing rod is installed on the upper end of the stick-shaped structure. When the upper end of the pressing rod is pressed, the lower end of the pressing rod descends, and the limiting structure is disengaged from the two hook openings at the lower end of the pressing rod, and the two stick-shaped structures are bounced open.

[0028] The hook end of the lower end of the pressing end is in the form of an inclined surface. When the two stick-shaped structures are merged, the hook end of the limiting structure slides along the inclined surface. At the same time, the return spring is compressed, and the position of the pressing end moves downward, so that the hook end of the limiting structure can slide along the inclined surface into the hook end of the lower end of the pressing end.

[0029] The inner cylinder is connected to one of the stick-shaped structures via a rotating shaft, and the outer cylinder is connected to the other stick-shaped structure via a rotating shaft. When the two stick-shaped structures are combined or opened, the inner cylinder and the outer cylinder rotate around the rotating shaft.

[0030] A retaining ring is fixed on the pressing rod, the pressing rod passes through the return spring, and the return spring is located under the retaining ring; a ring is fixed on the stick-shaped structure, the pressing rod passes through the ring, and the spring is located on the ring.

[0031] A limiting ring is also fixed on the stick-shaped structure, the pressing rod passes through the limiting ring, and the retaining ring is located under the limiting ring, and when installed, the return spring is compressed by the ring and the limiting ring at both ends; the cross-section of the pressing rod is rectangular, and the inner ring of the ring and the limiting ring is also a rectangle of the same size.

[0032] One of the two stick-shaped structures is longer than the other, which is called the main stick-shaped structure. The upper end of the main stick-shaped structure is higher than the main rotating shaft. The upper end of the main stick-shaped structure has a handle, and the upper end of the pressing rod is located at the handle.

[0033] There is a block at the end of the inner tube, which protrudes from the outer wall of the side of the inner tube. There is a long slot on the side of the outer tube, and the block can slide in the slot. When the telescopic structure is opened to a certain extent, the block and the slot are interlocked, so that the length of the telescopic structure that is ejected is limited, which can limit the opening angle of the two stick-shaped structures. Example

[0034] like Figure 8 、 9As shown, a backward-fall prevention crutch is characterized in that it includes a stick-shaped structure, a main rotating shaft, a telescopic structure, and a locking structure. The stick-shaped structures have two, and the main rotating shaft is installed at the upper ends of the two stick-shaped structures. The two stick-shaped structures can rotate around the main rotating shaft to achieve merging and opening. The telescopic structure includes a spring, an inner cylinder, an outer cylinder, and a limiting structure. The inner cylinder and the outer cylinder are two cylinders, and the outer cylinder has a limiting structure. The inner cylinder and the outer cylinder are nested, and a spring is provided between the inner cylinder and the outer cylinder. The two ends of the telescopic structure are respectively connected to the two stick-shaped structures. The two stick-shaped structures When the telescopic structure is merged, it is compressed. When the telescopic structure pops open, the two stick-shaped structures are opened, and the length of the telescopic structure that pops open is limited, which can limit the opening angle of the two stick-shaped structures. The locking structure includes a pressing rod and a return spring. When the telescopic structure is compressed, the limiting structure is blocked by the lower end of the pressing rod to prevent the telescopic structure from automatically popping open. When the pressing rod is pressed, the pressing rod disengages from the limiting structure, the telescopic structure pops open, and the two stick-shaped structures are separated. When the pressing stops, the return spring restores the position of the pressing rod.

[0035] The limiting structure is located at the upper end of the outer cylinder. The limiting structure is in the shape of a barb with its hook opening facing downward. The lower end of the pressing end is in the shape of a barb with its hook opening facing upward. When the two stick-shaped structures are merged, the hook opening of the limiting structure slides into the hook opening of the lower end of the pressing rod, and the two hook openings are interlocked. The upper end of the pressing rod is installed on the upper end of the stick-shaped structure. When the upper end of the pressing rod is pressed, the lower end of the pressing rod descends, and the limiting structure is disengaged from the two hook openings at the lower end of the pressing rod, and the two stick-shaped structures are bounced open.

[0036] The hook end of the lower end of the pressing end is in the form of an inclined surface. When the two stick-shaped structures are merged, the hook end of the limiting structure slides along the inclined surface. At the same time, the return spring is compressed, and the position of the pressing end moves downward, so that the hook end of the limiting structure can slide along the inclined surface into the hook end of the lower end of the pressing end.

[0037] The inner cylinder is connected to one of the stick-shaped structures via a rotating shaft, and the outer cylinder is connected to the other stick-shaped structure via a rotating shaft. When the two stick-shaped structures are combined or opened, the inner cylinder and the outer cylinder rotate around the rotating shaft.

[0038] A retaining ring is fixed on the pressing rod, the pressing rod passes through the return spring, and the return spring is located under the retaining ring; a ring is fixed on the stick-shaped structure, the pressing rod passes through the ring, and the spring is located on the ring.

[0039] A limiting ring is also fixed on the stick-shaped structure, the pressing rod passes through the limiting ring, and the retaining ring is located under the limiting ring, and when installed, the return spring is compressed by the ring and the limiting ring at both ends; the cross-section of the pressing rod is rectangular, and the inner ring of the ring and the limiting ring is also a rectangle of the same size.

[0040] One of the two stick-shaped structures is longer than the other, which is called the main stick-shaped structure. The upper end of the main stick-shaped structure is higher than the main rotating shaft. The upper end of the main stick-shaped structure has a handle, and the upper end of the pressing rod is located at the handle.

[0041] The outer diameter of the inner tube end is greater than the inner diameter of the outer tube end. When the telescopic structure is opened to a certain extent, the two ends are interlocked, so that the length of the telescopic structure to be ejected is limited, which can limit the opening angle of the two stick-shaped structures. Example

[0042] The usage of the described anti-falling crutch is characterized by comprising the steps of: Normally, the two stick-shaped structures are combined, the telescopic structure is compressed, and the limiting structure is blocked by the pressing rod to prevent the telescopic structure from automatically springing open, so that the cane can be used as an ordinary crutch; When the human body is standing unsteadily, the pressing rod is pressed, and the lower end of the pressing rod is separated from the limiting structure, the telescopic structure pops up, and the two stick-shaped structures are separated. The length of the telescopic structure that pops up is limited, which can limit the opening angle of the two stick-shaped structures. The upper end of the anti-fall crutch is held, so that the two stick-shaped structures are respectively located in front and behind the human body, and the human body and the two stick-shaped structures form a triangle, which keeps the human body standing stably and can prevent the human body from falling backwards.

Claims

1. A crutch for preventing backward falls, characterized by: The invention comprises a stick-shaped structure, a main rotating shaft, a telescopic structure and a locking structure. The stick-shaped structures have two, and the main rotating shaft is installed at the upper ends of the two stick-shaped structures. The two stick-shaped structures can rotate around the main rotating shaft to realize merging and opening. The telescopic structure comprises a spring, an inner cylinder, an outer cylinder and a limiting structure. The inner cylinder and the outer cylinder are two cylinders, and the outer cylinder has a limiting structure. The inner cylinder and the outer cylinder are nested, and a spring is arranged between the inner cylinder and the outer cylinder. The two ends of the telescopic structure are respectively connected to the two stick-shaped structures. When the two stick-shaped structures are merged, the telescopic structure When the telescopic structure is compressed, the two stick-shaped structures are opened when the telescopic structure pops up, and the length of the telescopic structure that pops up is limited, which can limit the opening angle of the two stick-shaped structures. The locking structure includes a pressing rod and a return spring. When the telescopic structure is compressed, the limiting structure is blocked by the lower end of the pressing rod to prevent the telescopic structure from automatically popping up. When the pressing rod is pressed, the pressing rod disengages from the limiting structure, the telescopic structure pops up, and the two stick-shaped structures are separated. When the pressing stops, the return spring restores the position of the pressing rod.

2. A backward-fall prevention crutch according to claim 1, characterized in that the limiting structure is located at the upper end of the outer tube, the limiting structure is in the shape of a barb, and its hook mouth faces downward, and the lower end of the pressing end is in the shape of a barb, and its hook mouth faces upward. When the two stick-shaped structures are merged, the hook mouth of the limiting structure slides into the hook mouth of the lower end of the pressing rod, and the two hook mouths are interlocked. The upper end of the pressing rod is installed on the upper end of the stick-shaped structure. When the upper end of the pressing rod is pressed, the lower end of the pressing rod descends, and the limiting structure is disengaged from the two hook mouths at the lower end of the pressing rod, and the two stick-shaped structures are bounced open.

3. The anti-fall crutch according to claim 2, characterized in that: The hook end of the lower end of the pressing end is in the form of an inclined surface. When the two stick-shaped structures are merged, the hook end of the limiting structure slides along the inclined surface. At the same time, the return spring is compressed, and the position of the pressing end moves downward, so that the hook end of the limiting structure can slide along the inclined surface into the hook end of the lower end of the pressing end.

4. The anti-fall crutch according to claim 1, characterized in that: The inner cylinder is connected to one of the stick-shaped structures via a rotating shaft, and the outer cylinder is connected to the other stick-shaped structure via a rotating shaft. When the two stick-shaped structures are combined or opened, the inner cylinder and the outer cylinder rotate around the rotating shaft.

5. The anti-fall crutch according to claim 1, characterized in that: A retaining ring is fixed on the pressing rod, the pressing rod passes through the return spring, and the return spring is located under the retaining ring; a ring is fixed on the stick-shaped structure, the pressing rod passes through the ring, and the spring is located on the ring.

6. The anti-fall crutch according to claim 5, characterized in that: A limiting ring is also fixed on the stick-shaped structure, the pressing rod passes through the limiting ring, and the retaining ring is located under the limiting ring, and when installed, the return spring is compressed by the ring and the limiting ring at both ends; the cross-section of the pressing rod is rectangular, and the inner ring of the ring and the limiting ring is also a rectangle of the same size.

7. The anti-fall crutch according to claim 1, characterized in that: One of the two stick-shaped structures is longer than the other, which is called the main stick-shaped structure. The upper end of the main stick-shaped structure is higher than the main rotating shaft. The upper end of the main stick-shaped structure has a handle, and the upper end of the pressing rod is located at the handle.

8. The anti-fall crutch according to claim 1, characterized in that: There is a block at the end of the inner tube, which protrudes from the outer wall of the side of the inner tube. There is a long slot on the side of the outer tube, and the block can slide in the slot. When the telescopic structure is opened to a certain extent, the block and the slot are interlocked, so that the length of the telescopic structure that is ejected is limited, which can limit the opening angle of the two stick-shaped structures.

9. The anti-fall crutch according to claim 1, characterized in that: The outer diameter of the inner tube end is greater than the inner diameter of the outer tube end. When the telescopic structure is opened to a certain extent, the two ends are interlocked, so that the length of the telescopic structure to be ejected is limited, which can limit the opening angle of the two stick-shaped structures.

10. The method for using the backward-fall prevention crutch according to claim 1, wherein: The process includes the following steps: Normally, the two stick-shaped structures are combined, the telescopic structure is compressed, and the limiting structure is blocked by the pressing rod to prevent the telescopic structure from automatically springing open, so that the cane can be used as an ordinary crutch; When the human body is standing unsteadily, the pressing rod is pressed, and the lower end of the pressing rod is separated from the limiting structure, the telescopic structure pops up, and the two stick-shaped structures are separated. The length of the telescopic structure that pops up is limited, which can limit the opening angle of the two stick-shaped structures. The upper end of the anti-fall crutch is held, so that the two stick-shaped structures are respectively located in front and behind the human body, and the human body and the two stick-shaped structures form a triangle, which keeps the human body standing stably and can prevent the human body from falling backwards.

Images