Anti-falling walking stick

By designing multi-point support and single-point support switching for anti-fall canes, combined with gravity detection and protection mechanisms, the problem that traditional canes cannot meet personalized needs is solved, and the walking safety and data monitoring capabilities of recovered patients are improved.

CN120345772AInactive Publication Date: 2025-07-22NANJING DRUM TOWER HOSPITAL
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Patent Information

Application Number
CN202510402015.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-01
Publication Date
2025-07-22
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Traditional canes have shortcomings in their anti-fall function, they cannot effectively deal with complex walking environments, and cannot meet the needs of personalized use, especially the physical condition and rehabilitation needs of recovered patients.

Method used

A fall-proof cane is designed, including an S-shaped rod, switching mechanism, gravity detection mechanism, protection mechanism and a portable human fat analyzer. Through the switching of multi-point support and single-point support, combined with protective plate and gravity detection, it provides personalized support and protection.

Benefits of technology

It realizes personalized support based on patient needs, improves walking safety, reduces the risk of falling, and provides real-time physical data monitoring and protection functions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the technical field of walking sticks, and discloses an anti-falling walking stick which comprises an S-shaped rod, a switching mechanism is fixed to the bottom end of the S-shaped rod, a protection mechanism is installed outside the S-shaped rod, and through cooperation of a supporting plate, a second reset spring, a protection plate and other structures, when a patient grasps a handle to use the device for supporting, the device can be used for preventing falling down. Two sets of second fixing bolts are arranged to be in a loose state, a lantern ring and a protection plate can slide in a groove of an S-shaped rod, a second reset spring extrudes and supports the protection plate upwards, the two sets of second fixing bolts are tightened after the position is determined, and at the moment, the second fixing bolts can fix the position of the protection plate through threads of the second fixing bolts; the critically ill patient is helped to firmly pick up the walking stick with the palm, and the protective plate is arranged to wrap the fingers of the patient to protect the patient, so that the purposes that the patient can conveniently pick up the walking stick with less effort and protect the patient when using the device are achieved.
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Description

Technical Field

[0001] The present invention belongs to the technical field of walking sticks, and specifically relates to an anti-fall walking stick. Background Art

[0002] Among the patient groups in the rehabilitation department, a considerable number of people have problems such as poor balance ability, insufficient lower limb strength, or abnormal gait. This makes them extremely prone to falling accidents during walking. For these rehabilitation patients, a fall may cause secondary injuries such as fractures, joint injuries, and soft tissue contusions, seriously hindering the rehabilitation process, increasing medical costs, and even possibly leading to long-term disabilities or functional impairments, having a great negative impact on the physical and mental health of the patients.

[0003] As a common walking aid, traditional walking sticks can provide support for patients to a certain extent and assist them in walking. However, traditional walking sticks have many deficiencies in the anti-fall function. Their structures are relatively simple and usually only provide single-point support with limited stability. In the face of complex walking environments, such as uneven ground, slopes, narrow passages, or crowded places, it is difficult to effectively respond to sudden changes in the patient's body center of gravity or external interference factors, and it cannot provide sufficient lateral support force or balance adjustment ability in a timely manner, thus unable to fully guarantee the walking safety of patients. In addition, the physical conditions and rehabilitation needs of rehabilitation department patients vary. Different patients have differences in height, weight, grip strength, and the degree of balance ability recovery, etc. However, the height adjustment range of traditional walking sticks is limited, and the grip design lacks ergonomic considerations, making it difficult to meet personalized usage requirements.

[0004] Multi-point support occupies a relatively large space, and the space is small when the patient is walking. Single-point support can give the patient more activity space. It is necessary to enable the patient to switch between multi-point support and single-point support when using the device, so that the patient can choose to use multi-point support or single-point support according to the actual situation, and protect the patient's hand-held part and monitor the patient's body data. Summary of the Invention

[0005] To solve the problems raised in the above background art, the present invention provides an anti-fall walking stick.

[0006] To achieve the above object, the present invention provides the following technical solution: An anti-fall walking stick, including an S-shaped rod, a switching mechanism is fixed at the bottom end of the S-shaped rod, a support base is arranged at the bottom end of the switching mechanism, a gravity detection mechanism is arranged at the bottom end of the support base, a handle is fixed at the top end of the S-shaped rod, a portable body fat analyzer is fixed on the outer part of the S-shaped rod, and a protection mechanism is installed on the outer part of the S-shaped rod; The protection mechanism includes a support plate, a second return spring, and a protection plate. The support plate is fixed to the outside of the S-shaped rod. A second return spring is fixed to the top of the support plate. The top of the second return spring is fixed with a protection plate. The inside of the protection plate is provided with protection memory cotton. A collar is fixed to the outside of the protection plate. A second fixing bolt is arranged inside the collar. A limiting groove is opened on the outside of the S-shaped rod.

[0007] Preferably, four groups of the second return springs are provided. The second return springs are evenly distributed at the top of the support plate. The second return springs are used to squeeze the protection plate and keep it in a moving trend upward. Four groups of the protection memory cotton are provided. The protection memory cotton is evenly distributed inside the protection plate.

[0008] Preferably, the outer wall of the protection plate is close to the inner wall of the S-shaped rod. The protection plate is slidably connected to the S-shaped rod. The collar and the second fixing bolt are in threaded connection. Two groups of the second fixing bolts are symmetrically distributed about the central axis of the collar. Two groups of the limiting grooves are opened. The limiting grooves are symmetrically distributed about the central axis of the S-shaped rod.

[0009] Preferably, the switching mechanism includes a sleeve, a limiting block, and a first fixing bolt. The bottom end of the S-shaped rod is fixed with a sleeve. A limiting block is movably connected inside the sleeve. A first fixing bolt is arranged inside the limiting block. A connecting rod is arranged inside the sleeve. A limiting hole is opened on the outside of the connecting rod.

[0010] Preferably, the inner wall of the sleeve is close to the outer wall of the connecting rod. The sleeve and the connecting rod are slidably connected. A plurality of groups of the limiting blocks are provided. The outer wall of the limiting block is close to the inner wall of the sleeve. The limiting block and the sleeve are slidably connected.

[0011] Preferably, a support base is fixed to the bottom end of the connecting rod. A plurality of groups of the limiting holes are opened. The limiting holes are evenly distributed about the central axis of the connecting rod.

[0012] Preferably, the gravity detection mechanism includes a detection block, a first return spring, and a support bottom block. The detection block is fixed to the bottom end of the support base or the connecting rod. A first return spring is fixed to the bottom end of the detection block. The bottom end of the first return spring is fixed with a support bottom block. A damper is fixed to the bottom end of the detection block. A photoelectric proximity sensor is fixed to the bottom end of the detection block. A mirror disc is fixed to the bottom end inside the support bottom block.

[0013] Preferably, the first return spring is used to squeeze the detection block and keep it in a moving trend upward. The inner wall of the support bottom block is close to the outer wall of the detection block. The support bottom block and the detection block are slidably connected. The photoelectric proximity sensor and the mirror disc are on the same central axis.

[0014] Preferably, a control panel is fixed to the outside of the S-shaped rod, a display screen is fixed to the outside of the control panel, control buttons are fixed to the outside of the control panel, a mounting frame is fixed to the outside of the S-shaped rod, a detachable battery is movably connected to the outside of the mounting frame, and a lighting lamp is fixed to the inside of the S-shaped rod.

[0015] Preferably, the control buttons are provided in two groups, the inner wall of the mounting frame is close to the outer wall of the battery for assembly and disassembly, the mounting frame and the battery for assembly and disassembly are slidably connected, and the lighting lamp is located in the groove of the S-shaped rod.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention cooperates with structures such as a support plate, a second return spring, and a protective plate, so that when the patient grasps the handle to use the device for support, the two groups of second fixing bolts are set to a loose state, so that the ring and the protective plate can slide at the groove of the S-shaped rod, and the second return spring squeezes and supports the protective plate upward, so that the protective plate and the protective memory foam can closely contact the user's fingers and deform to fit the user's fingers, reducing the foreign body sensation, and tightening the two groups of second fixing bolts after determining the position. At this time, the second fixing bolts can fix the position of the protective plate through their own threads, helping critically ill patients to firmly pick up the cane with their palms and prevent detachment. The protective plate can also be provided to wrap the patient's fingers to protect the patient, thereby achieving the purpose of facilitating the patient to pick up the device with less effort and protecting the patient when using the device.

[0017] The present invention cooperates with structures such as a sleeve, a limit block, and a first fixing bolt so that the device can loosen the connection between the first fixing bolt and the limit hole by rotating, so that the limit block can slide. At this time, the height of the sleeve and the connecting rod is slidably changed, and after adjustment, the two groups of limit blocks and the first fixing bolt are aligned with the topmost position of the connection between the sleeve and the limit hole and fixed, and the remaining group of limit blocks and the limit hole are fixed at the bottommost position of the connection, thereby ensuring the firmness of the connection between the sleeve and the connecting rod, and the limit hole can be completely separated from the interior of the sleeve, so that the limit hole can be replaced, and it is selected whether to have a support component with multi-point support and a gravity detection mechanism or a single-point support component with only a gravity detection mechanism. The multi-point support occupies a larger space, and the space is smaller when the patient walks. The single-point support can give the patient more room for activities, giving the user the purpose of self-selection.

[0018] Through the cooperation of structures such as a detection block, a first return spring, and a supporting bottom block, the device can apply a downward supporting force when using the cane to walk, causing the detection block to move downward and compress the first return spring and the damper, and changing the distance between the optoelectronic proximity sensor and the mirror disc. Since the emitting end of the optoelectronic proximity sensor continuously emits a light beam with a specific wavelength, and the light beam is reflected after contacting the mirror disc, the reflected light beam is received by the photosensitive element at the receiving end of the optoelectronic proximity sensor. When the light beam emitted by the emitting end is scattered or reflected back by an object, the photosensitive element at the receiving end will receive these reflected light signals. After receiving the light signal, the photosensitive element will have a change in current or voltage, and a photocurrent will be generated in the photodiode under light irradiation, thereby converting the light signal into an electrical signal. The conversion circuit inside the control panel converts the analog signal into a digital signal and displays the specific data on the surface of the display screen for medical staff to record, so as to judge the body center of gravity transfer data of the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the overall multi-point support structure of the present invention; Figure 2 Schematic diagram of the overall single-point support structure of the present invention; Figure 3 Exploded structure diagram of the multi-point support component of the present invention; Figure 4 Exploded structure diagram of the single-point support component of the present invention; Figure 5 Schematic diagram of the structure of the handheld component of the present invention; Figure 6 Exploded structure diagram of the handheld component of the present invention; Figure 7 Right side exploded view structure diagram of the handheld component of the present invention; Figure 8 Schematic diagram of the structure of the gravity detection mechanism of the present invention; Figure 9 Schematic diagram of the structure of the gravity detection mechanism of the present invention.

[0020] In the figure: 1. S-shaped rod; 2. switching mechanism; 201. sleeve; 202. limit block; 203. first fixing bolt; 204. connecting rod; 205. limit hole; 3. support base; 4. gravity detection mechanism; 401. detection block; 402. first return spring; 403. support bottom block; 404. damper; 405. photoelectric proximity sensor; 406. mirror disc; 5. control panel; 6. display screen; 7. control button; 8. protection mechanism; 801. support plate; 802. second return spring; 803. protection plate; 804. protection memory foam; 805. collar; 806. second fixing bolt; 807. limit groove; 9. mounting bracket; 10. lighting lamp; 11. dismountable battery; 12. handle; 13. portable body fat analyzer. Detailed implementation mode

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0022] As Figures 1 to 9 shown, the present invention provides an anti-fall cane, which includes an S-shaped rod 1. A switching mechanism 2 is fixed at the bottom end of the S-shaped rod 1. A support base 3 is arranged at the bottom end of the switching mechanism 2. A gravity detection mechanism 4 is arranged at the bottom end of the support base 3. A handle 12 is fixed at the top end of the S-shaped rod 1. A portable body fat analyzer 13 is fixed outside the S-shaped rod 1. A protection mechanism 8 is installed outside the S-shaped rod 1. A control panel 5 is fixed outside the S-shaped rod 1. A display screen 6 is fixed outside the control panel 5. A control button 7 is fixed outside the control panel 5. A mounting bracket 9 is fixed outside the S-shaped rod 1. A dismountable battery 11 is movably connected to the outside of the mounting bracket 9. A lighting lamp 10 is fixed inside the S-shaped rod 1. There are two groups of control buttons 7. The inner wall of the mounting bracket 9 is close to the outer wall of the dismountable battery 11. The mounting bracket 9 and the dismountable battery 11 are slidably connected. The lighting lamp 10 is located at the groove of the S-shaped rod 1.

[0023] Adopting the above solution: After the patient places the thumb on the surface of the portable body fat analyzer 13 when using the device, the portable body fat analyzer 13 can monitor data such as the patient's body fat mass, body fat percentage, muscle mass, and basal metabolic rate. This effect is the prior art in this field and will not be elaborated here. And it can activate the lighting lamp 10 to illuminate the front, so that the patient can get enough sight when walking at night. Moreover, the quick-disassembly property of the dismountable battery 11 can conveniently adjust the power supply distribution of the device.

[0024] AsFigures 1 to 9 As shown, the protection mechanism 8 includes a support plate 801, a second return spring 802 and a protection plate 803. The support plate 801 is fixed outside the S-shaped rod 1. The second return spring 802 is fixed to the top of the support plate 801. The protection plate 803 is fixed to the top of the second return spring 802. A protection memory foam 804 is provided inside the protection plate 803. There are four groups of second return springs 802, and the second return springs 802 are evenly distributed at the top of the support plate 801. The second return spring 802 is used to squeeze the protection plate 803 and keep it in an upward moving trend. There are four groups of protection memory foams 804, and the protection memory foams 804 are evenly distributed inside the protection plate 803.

[0025] As Figures 1 to 9 As shown, a collar 805 is fixed to the outside of the protection plate 803. A second fixing bolt 806 is provided inside the collar 805. A limiting groove 807 is formed on the outside of the S-shaped rod 1. The outer wall of the protection plate 803 is close to the inner wall of the S-shaped rod 1. The protection plate 803 is slidably connected to the S-shaped rod 1. The collar 805 is threadedly connected to the second fixing bolt 806. There are two groups of second fixing bolts 806, which are symmetrically distributed about the central axis of the collar 805. There are two groups of limiting grooves 807, which are symmetrically distributed about the central axis of the S-shaped rod 1.

[0026] Adopting the above solution: By setting the two groups of second fixing bolts 806 to a loose state, the collar 805 and the protection plate 803 can slide at the grooved part of the S-shaped rod 1, and the second return spring 802 squeezes and supports the protection plate 803 upward, so that the protection plate 803 and the protection memory foam 804 can closely contact the user's finger and deform to fit the user's finger, reducing the generated foreign body sensation. After determining the position, tighten the two groups of second fixing bolts 806. At this time, the second fixing bolt 806 can fix the position of the protection plate 803 through its own thread, helping the critically ill patient to firmly pick up the walking stick with the palm and preventing the phenomenon of detachment, and protecting the patient by wrapping the protection plate 803 around the patient's finger.

[0027] As Figures 1 to 9As shown, the switching mechanism 2 includes a sleeve 201, a limit block 202 and a first fixing bolt 203. The bottom end of the S-shaped rod 1 is fixed with the sleeve 201, the inside of the sleeve 201 is movably connected to the limit block 202, the inside of the limit block 202 is provided with a first fixing bolt 203, the inside of the sleeve 201 is provided with a connecting rod 204, the inner wall of the sleeve 201 is close to the outer wall of the connecting rod 204, the sleeve 201 and the connecting rod 204 are slidably connected, the limit block 202 is provided with several groups, the outer wall of the limit block 202 is close to the inner wall of the sleeve 201, the limit block 202 and the sleeve 201 are slidably connected, the outside of the connecting rod 204 is provided with a limit hole 205, the bottom end of the connecting rod 204 is fixed with a support seat 3, the limit holes 205 are provided with several groups, and the limit holes 205 are evenly spaced about the central axis of the connecting rod 204.

[0028] The above scheme is adopted: the connection between the first fixing bolt 203 and the limiting hole 205 is loosened by rotating so that the limiting block 202 can slide. At this time, the height of the sleeve 201 and the connecting rod 204 is slid and changed, and after adjustment, the two groups of limiting blocks 202 and the first fixing bolt 203 are aligned with the topmost position of the connection between the sleeve 201 and the limiting hole 205 and fixed, and the remaining group of limiting blocks 202 and the limiting hole 205 are fixed at the bottommost position of the connection, thereby ensuring the firmness of the connection between the sleeve 201 and the connecting rod 204, and the limiting hole 205 can be completely detached from the interior of the sleeve 201, so that the limiting hole 205 can be replaced, and it is selected whether to have a support component with multi-point support and a gravity detection mechanism 4 or a single-point support component with only a gravity detection mechanism 4.

[0029] like Figures 1 to 9 As shown, the gravity detection mechanism 4 includes a detection block 401, a first return spring 402 and a supporting bottom block 403. The detection block 401 is fixed to the bottom end of the support seat 3 or the connecting rod 204. The first return spring 402 is fixed to the bottom end of the detection block 401. The supporting bottom block 403 is fixed to the bottom end of the first return spring 402. A damper 404 is fixed to the bottom end of the detection block 401. A photoelectric proximity sensor 405 is fixed to the bottom end of the detection block 401. A mirror plate 406 is fixed to the bottom end of the inside of the supporting bottom block 403. The first return spring 402 is used to squeeze the detection block 401 and keep it moving upward. The inner wall of the supporting bottom block 403 is close to the outer wall of the detection block 401. The supporting bottom block 403 and the detection block 401 are slidably connected. The photoelectric proximity sensor 405 and the mirror plate 406 are on the same central axis.

[0030] Adopting the above solution: By detecting that the detection block 401 moves downward to squeeze the first reset spring 402 and the damper 404, and changing the distance between the photoelectric proximity sensor 405 and the mirror disc 406. Since the emitting end of the photoelectric proximity sensor 405 continuously emits a light beam of a specific wavelength, and after the light beam contacts the mirror disc 406, it is reflected, and the reflected light beam is received by the photosensitive element at the receiving end of the photoelectric proximity sensor 405. When the light beam emitted by the emitting end is scattered or reflected back by an object, the photosensitive element at the receiving end will receive these reflected light signals. After the photosensitive element receives the light signal, there will be a change in current or voltage, and a photocurrent will be generated in the photodiode under light irradiation, thereby converting the light signal into an electrical signal. The conversion circuit inside the control panel 5 converts the analog signal into a digital signal and displays the specific data on the surface of the display screen 6.

[0031] The working principle and use process of the present invention are as follows: when the patient grasps the handle 12 and uses the device for support, the two sets of second fixing bolts 806 are set to a loose state, so that the ring 805 and the protective plate 803 can slide at the slot of the S-shaped rod 1, and the second return spring 802 squeezes and supports the protective plate 803 upward, so that the protective plate 803 and the protective memory foam 804 can be in close contact with the user's fingers, and deform to fit the user's fingers, reducing the foreign body sensation, and tighten the two sets of second fixing bolts 806 after determining the position. At this time, the second fixing bolts 806 can fix the position of the protective plate 803 through their own threads, helping critically ill patients to place their palms The cane can be firmly picked up to prevent it from falling off. The protective plate 803 is provided to wrap the patient's fingers to protect the patient. The connection between the first fixing bolt 203 and the limiting hole 205 is loosened by rotation, so that the limiting block 202 can slide. At this time, the height of the sleeve 201 and the connecting rod 204 is slid and changed. After adjustment, the two groups of limiting blocks 202 and the first fixing bolt 203 are aligned with the top position of the connection between the sleeve 201 and the limiting hole 205 and fixed. The remaining group of limiting blocks 202 and the limiting hole 205 are fixed at the bottom position of the connection, thereby ensuring the firmness of the connection between the sleeve 201 and the connecting rod 204. , and the limiting hole 205 can be completely separated from the interior of the sleeve 201, so that the limiting hole 205 can be replaced, and it is selected whether to have a support component with multi-point support and a gravity detection mechanism 4 or a single-point support component with only a gravity detection mechanism 4. The multi-point support occupies a larger space, and the space is smaller when the patient walks. The single-point support can give the patient more room for activities, giving the user the choice, and when using a cane to walk, a supporting force will be applied downward, so that the detection block 401 moves downward to squeeze the first return spring 402 and the damper 404, and change the distance between the photoelectric proximity sensor 405 and the mirror plate 406. Due to the photoelectric proximity sensor 405 The transmitting end continuously emits a light beam of a specific wavelength, and reflects the light beam after it contacts the mirror plate 406. The reflected light beam is received by the photosensitive element at the receiving end of the photoelectric proximity sensor 405. When the light beam emitted by the transmitting end is scattered or reflected back by an object, the photosensitive element at the receiving end will receive these reflected light signals. After receiving the light signal, the photosensitive element will undergo a change in current or voltage, and the photodiode will generate photocurrent under light irradiation, thereby converting the light signal into an electrical signal. The conversion circuit inside the control panel 5 converts the analog signal into a digital signal, and displays the specific data on the surface of the display screen 6 for medical personnel to record, thereby determining the patient's body center of gravity transfer data.

[0032] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0033] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-fall cane, comprising an S-shaped rod (1), characterized in that: A switching mechanism (2) is fixed to the bottom end of the S-shaped rod (1), a support base (3) is arranged at the bottom end of the switching mechanism (2), a gravity detection mechanism (4) is arranged at the bottom end of the support base (3), a handle (12) is fixed to the top end of the S-shaped rod (1), a portable body fat analyzer (13) is fixed to the outside of the S-shaped rod (1), and a protection mechanism (8) is installed on the outside of the S-shaped rod (1). The protection mechanism (8) includes a support plate (801), a second return spring (802) and a protection plate (803). The support plate (801) is fixed to the outside of the S-shaped rod (1). A second return spring (802) is fixed to the top end of the support plate (801). A protection plate (803) is fixed to the top end of the second return spring (802). A protection memory foam (804) is arranged inside the protection plate (803). A collar (805) is fixed to the outside of the protection plate (803). A second fixing bolt (806) is arranged inside the collar (805). A limiting groove (807) is formed on the outside of the S-shaped rod (1).

2. The anti-fall cane according to claim 1, characterized in that: Four groups of the second return springs (802) are provided, and the second return springs (802) are evenly distributed at the top end of the support plate (801). The second return springs (802) are used to squeeze the protection plate (803) and keep it in a moving-upward trend. Four groups of the protection memory foams (804) are provided, and the protection memory foams (804) are evenly distributed inside the protection plate (803).

3. The anti-fall cane according to claim 1, characterized in that: The outer wall of the protection plate (803) is close to the inner wall of the S-shaped rod (1). The protection plate (803) is slidably connected to the S-shaped rod (1). The collar (805) is threadedly connected to the second fixing bolt (806). Two groups of the second fixing bolts (806) are symmetrically distributed about the central axis of the collar (805). Two groups of the limiting grooves (807) are formed, and the limiting grooves (807) are symmetrically distributed about the central axis of the S-shaped rod (1).

4. The anti-fall cane according to claim 1, wherein: The switching mechanism (2) includes a sleeve (201), a limiting block (202) and a first fixing bolt (203). The sleeve (201) is fixed to the bottom end of the S-shaped rod (1). The limiting block (202) is movably connected inside the sleeve (201). A first fixing bolt (203) is arranged inside the limiting block (202). A connecting rod (204) is arranged inside the sleeve (201). A limiting hole (205) is formed on the outside of the connecting rod (204).

5. The anti-fall cane according to claim 4, characterized in that: The inner wall of the sleeve (201) is close to the outer wall of the connecting rod (204). The sleeve (201) is slidably connected to the connecting rod (204). A plurality of groups of the limiting blocks (202) are provided. The outer wall of the limiting block (202) is close to the inner wall of the sleeve (201). The limiting block (202) is slidably connected to the sleeve (201).

6. The anti-fall cane according to claim 4, characterized in that: A support base (3) is fixed to the bottom end of the connecting rod (204), and a number of groups of limit holes (205) are provided. The limit holes (205) are equidistantly distributed about the central axis of the connecting rod (204).

7. The anti-fall cane according to claim 1, characterized in that: The gravity detection mechanism (4) includes a detection block (401), a first return spring (402) and a support base block (403). The detection block (401) is fixed to the bottom end of the support base (3) or the connecting rod (204). A first return spring (402) is fixed to the bottom end of the detection block (401). A support base block (403) is fixed to the bottom end of the first return spring (402). A damper (404) is fixed to the bottom end of the detection block (401). A photoelectric proximity sensor (405) is fixed to the bottom end of the detection block (401). A mirror disc (406) is fixed to the bottom end inside the support base block (403).

8. The anti-fall cane according to claim 7, characterized in that: The first return spring (402) is used to squeeze the detection block (401) and keep it in a tendency to move upward. The inner wall of the support base block (403) is close to the outer wall of the detection block (401). The support base block (403) and the detection block (401) are slidably connected. The photoelectric proximity sensor (405) and the mirror disc (406) are on the same central axis.

9. The anti-fall cane according to claim 1, characterized in that: A control panel (5) is fixed to the outside of the S-shaped rod (1). A display screen (6) is fixed to the outside of the control panel (5). A control button (7) is fixed to the outside of the control panel (5). An installation bracket (9) is fixed to the outside of the S-shaped rod (1). A detachable battery (11) is movably connected to the outside of the installation bracket (9). A lighting lamp (10) is fixed inside the S-shaped rod (1).

10. The anti-fall cane according to claim 9, characterized in that: There are two groups of control buttons (7). The inner wall of the installation bracket (9) is close to the outer wall of the detachable battery (11). The installation bracket (9) and the detachable battery (11) are slidably connected. The lighting lamp (10) is located at the groove of the S-shaped rod (1).