CN112137848A - Supplementary running gear with effect is prevented falling in buffering - Google Patents

Abstract

The invention discloses an auxiliary walking device with buffering and anti-falling effects, which comprises a waist component, a buffer cylinder, a transverse support and a pair of movable support mechanisms, wherein the buffer cylinder is divided into an upper cavity and a lower cavity by a piston, the pair of movable support mechanisms form a four-foot support mechanism, the extending end of a piston rod of the buffer cylinder is connected with the side edge of the waist component through a connecting belt, a tension three-way valve is arranged in the waist component, a control valve core of the tension three-way valve is respectively connected to the connecting belts at two sides, the on-off of each air inlet of the tension three-way valve is controlled by the tension of the connecting belt, and balanced air outlets of the lower cavities of the two buffer cylinders are connected to the same balanced air outlet provided with. The invention supports and prevents falling of users who tend to fall on uneven ground, and plays a role in helping the users to restore balance while buffering.

Description

A kind of auxiliary walking device with buffering and anti-falling effect

technical field

The invention belongs to the field of medical instruments, and relates to an auxiliary walking device with buffering and anti-falling effects.

Background technique

Illness, injury or aging can lead to a decline in physical fitness, weakening muscle strength, causing a decline in body agility, balance, and coordination, making it easy to lose balance and fall during walking. In order to protect the safety of such people and help them perform activities such as walking, there are now many devices that help the human body to assist in walking while walking. Existing auxiliary walking devices include canes, support frames and wearable auxiliary support devices. Because the cane requires the user's upper limb to exert force, it has certain requirements on the upper limb strength, and it may not be able to effectively prevent the user from falling. The wearable auxiliary walking device tied to the user's body is close to the human body for easy movement, but to achieve auxiliary support, it often requires a support structure that can be deployed immediately. support issue. The support frame that moves with the user, although it can assist the user at any time and has a certain anti-fall effect, still has the following technical problems: First, the fall of the user mostly occurs on the steps, and the Level the road surface, so that the support rods on the support frame that are in contact with the ground for support can support the user even when they fall, once they fall to different heights, but due to the different heights of the support rods, The user is still unable to quickly restore balance, and the center of gravity is unstable, leading to the risk of tipping over after being supported. Second, in order to facilitate the user to obtain, the distance between the support rods of the support frame is often not very large. Therefore, to provide a better support effect during anti-fall, it is necessary to increase the bottom support area to ensure that a fall occurs. When inclined, the center of gravity of the human body does not exceed the range of the support area at the bottom of the assist device. Then, in order to prevent the impact from being blocked after a fall from hurting the human body, it is necessary to have a corresponding buffer structure. Now the commonly used spring buffer does not help to maintain the balance of the user's body in the buffer, and it is easy to maintain the balance of the center of gravity. The user's body is turned due to the elastic force of the spring, which increases the risk of overturning in other directions, resulting in secondary injury.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an auxiliary walking device with a buffering and anti-falling effect, so as to solve the problem that in the prior art, when the supporting surface is uneven, it is impossible to ensure that the user can be buffered and restored in the process of preventing falling. Balance, resulting in unreliable technical problems in the anti-drop effect and the effect of preventing secondary damage.

Said auxiliary walking device with buffering and anti-falling effect includes a waist assembly tied to the waist, buffer cylinders located on both sides of the waist assembly, a lateral support connected between the buffer cylinders, and a A pair of movable support mechanisms on both sides of the lateral support, the buffer cylinder is divided into an upper cavity and a lower cavity by the piston, each movable support rod mechanism is provided with two support rods supported on the ground, a pair of movable support rods The support mechanism forms a four-legged support mechanism, the human body bound with the waist assembly is located in the middle position of the four-legged support mechanism, and the protruding end of the piston rod of the buffer cylinder is connected with the side of the waist assembly through a connecting belt, There is a tension three-way valve inside the waist assembly, and the control spools of the tension three-way valve are respectively connected to the connecting belts on both sides, and each air inlet of the tension three-way valve is controlled by the tension of the connecting belt. On and off, the balanced air outlets of the lower chambers of the two buffer cylinders are connected to the same balanced exhaust port provided with a restrictor valve 1 through the tension three-way valve, and the lower chambers are also provided with a single-sided exhaust. The single-side exhaust port is provided with a second restrictor valve.

Preferably, an on-off valve and an attitude detection module capable of detecting whether the human body has a tendency to fall is also installed inside the waist assembly, and the movable support mechanism can increase the distance between the two support rods through an extension mechanism, and the attitude detection module When it is detected that the human body is likely to fall, the stretching mechanism is activated to deploy and the switch valve is opened,

Preferably, a gas generating device that generates a large amount of gas after activation is also provided inside the lateral support, the on-off valve is a pneumatic on-off valve, the stretching mechanism is deployed through the intake of high-pressure gas, and the air jet of the gas generating device passes through The pipeline is connected to the extension mechanism and the pneumatic switch valve, the pneumatic switch valve is opened when the gas generating device is activated, the gas generating device is activated by the attitude detection module, and the pneumatic switch valve is used to control the The tension three-way valve is connected to the on-off of the pipeline between the balanced exhaust ports.

Preferably, the tension three-way valve comprises a three-way valve body, the control valve core and a curved elastic plug, and the three-way valve body is provided with two air inlet ports and one said air outlet inner port , each of the inner air inlets is communicated with the lower cavity on the opposite side, the valve body has a central valve cavity, and the inner air inlets are respectively arranged on the left and right of the central valve cavity At both ends, the control valve core is slidably connected with the three-way valve body along the left and right directions, and the left and right ends of the control valve core extend out of the three-way valve body and are respectively connected to the connecting strips on both sides, so The center of the control valve core is provided with a center block extending between the two air inlets, and two ends of the center block are fixed with arc-surface elastic plugs for blocking the two air inlets respectively. The inner air outlet is connected to the central valve cavity. When the tension of the connecting straps on both sides is balanced, the central block is located in the center of the central valve cavity, and the two air inlet inner ports are simultaneously sealed by the curved elastic plugs. .

Preferably, the movable support mechanism includes a T-shaped support rod and the support rod, the upper end of the vertical part of the T-shaped support rod is fixed on the side surface of the lateral support, and the top of the support rod is slidably sleeved on the Both ends of the horizontal part of the T-shaped support rod, the lower end of the support rod is installed with rollers, the T-shaped support rod is connected to a pair of the support rods through the stretching mechanism, and the lower end of the support rod is also provided with There are supports that rest on the ground when the extension mechanism is deployed.

Preferably, the stretching mechanism includes a fixed seat fixed on the lateral support side, a sliding sleeve slidingly sleeved on the vertical part, a stretching link and a tension spring, and the vertical direction is provided in the fixed seat. an air intake inner cavity, the air intake inner cavity is connected to the air injection port of the gas generating device through a pipeline, the sliding sleeve is slidably fitted with the air intake inner cavity and is connected with the air intake inner cavity through the tension spring The extension link is symmetrically arranged on both sides of the sliding sleeve, the top of the support rod has a horizontal tube sleeve with one end open, and one end of the extension link is hinged to the sliding sleeve and the other end is hinged to the sliding sleeve. On the horizontal pipe sleeve, the horizontal pipe sleeve is slidably sleeved on the end of the horizontal part.

Preferably, both sides of the lower end of the support rod are hinged to a support member through a hinge seat, the support member is connected to the support rod through a torsion spring and is lifted upward in a natural state, and the inner side of the support member is connected with a pull The center of the support rod is provided with a central channel that communicates with the inner cavity of the horizontal sleeve, the lower end of the central channel is connected to the cable from both sides of the opening, and the cable passes through the central channel and is connected to the cable. end of the horizontal section.

Preferably, the lateral support includes a C-shaped beam and a structural bin, the auxiliary cylinder 5 and the supporting mechanism are installed on both sides of the C-shaped beam, and the structural bin is connected to the waist assembly through a pipeline, A control module and a gas path valve are arranged in the structural chamber.

Preferably, a cylinder spring is provided in the lower cavity, one end of the cylinder spring is connected to the bottom of the cylinder and the other end is connected to the bottom of the piston, the upper cavity is connected to the outside through a free vent hole, and the The upper cavity communicates with the outside through the free air suction hole.

The present invention has the following advantages: in this solution, when the user falls, the buffer cylinder can slowly descend during the process of supporting the user, which not only reduces the impact on the user during the process from falling to obtaining support, but also reduces the impact on the user. The user's center of gravity is lowered to reduce the possibility of overturning, and the safety of the user is greatly improved. When the ground is uneven, the support heights of the support mechanisms on both sides are different due to the different support surfaces. The tension three-way valve in this device is affected by the different tensions on both sides and opens the buffer cylinder on the higher support height to the balance outlet. The passage allows the buffer cylinder on the higher side to increase the exhaust speed of the lower cavity, thereby helping the user to gradually balance the heights supported by the left and right sides of the user as the piston rod descends, which helps the user while buffering. restore balance. Because the descending speed of the piston rod in the buffer cylinder is relatively stable, and the user's body can be rebalanced at a relatively uniform speed, avoiding the problem of excessive extrusion caused by pure spring buffering, and the spring force affecting the balance of the user's center of gravity, thereby greatly Improves safety when the user falls.

The device is usually at the center between the four support rods, so it can achieve auxiliary support in all directions and has a certain anti-fall effect. When there is a tendency to fall, the movable support mechanism is expanded by the stretching mechanism to expand the support. Area, improve the anti-fall effect, the air path of the stretching mechanism and the buffer cylinder connected with the tension three-way valve is opened by the same gas generating device, so the stretching mechanism and the tension three-way valve are only activated when there is a tendency to fall, so as to avoid walking in peacetime users are affected.

At the same time, since the two effects of buffering and helping the user to restore balance on uneven ground are both achieved by the uniform speed reduction of the piston rod of the buffer cylinder, the effects can be simultaneously produced without control, so the control method is simple and the stability is good. There are few parts and mechanisms, and it is not easy to fail. The single-side exhaust port maintains the same exhaust pressure through the second restrictor valve, so the moving speed of the cylinder is basically the same, which plays an auxiliary support and balance effect when the user moves up and down.

In order to facilitate the movement of the lower end of the support rod in the device, a roller is provided to realize free movement, and the device realizes the stable support of the lower end of the support rod through the support member and the clamping assembly controlled by the cable, and the support member is pulled down while the stretching mechanism is unfolded. , to achieve contact with the ground to fix the support rod to avoid sliding of the support rod. At the same time, the clamping assembly is clamped by the end of the T-shaped strut, so as to maintain the supporting effect of the supporting member.

Description of drawings

FIG. 1 is a schematic structural diagram of the present invention during normal walking.

FIG. 2 is a top view of the structure shown in FIG. 1 .

FIG. 3 is a schematic view of the structure of the present invention after the stretching mechanism is deployed.

FIG. 4 is a structural diagram of the gas path in the present invention.

FIG. 5 is a schematic structural diagram of the support rod and the clamping assembly in the present invention.

FIG. 6 is a schematic structural diagram of a tension three-way valve in the present invention.

FIG. 7 is a schematic view of the structure in the fixed seat of the present invention.

The symbols in the drawings are: 1. Fixed seat, 2. T-shaped strut, 3. Support rod, 31, Roller, 32, Clip assembly, 33. Center channel, 4. Lateral support, 5. Cushion cylinder, 6 , Piston Rod, 7, Connecting Belt, 8, Waist Assembly, 9, Extension Link, 10, Support, 101, Cable, 102, Torsion Spring, 11, Horizontal Sleeve, 12, Sliding Sleeve, 13, Gas Generation Device, 14, Tension three-way valve, 141, Three-way valve body, 142, Control spool, 143, Center block, 144, Inner air inlet, 145, Curved elastic plug, 146, Center valve cavity, 15 , Pneumatic switch valve, 16, restrictor valve one, 17, restrictor valve two, 18, stretching mechanism, 19, tension spring.

Detailed ways

The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, through the description of the embodiments, to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solutions of the present invention.

As shown in Figures 1-7, the present invention provides an auxiliary walking device with a buffering and anti-falling effect, comprising a waist assembly 8 tied to the waist, buffer cylinders 5 located on both sides of the waist assembly 8, A lateral support 4 between the buffer cylinders 5 and a pair of movable support mechanisms connected on both sides of the lateral support 4, the buffer cylinder 5 is divided into an upper cavity and a lower cavity by the piston, and each movable support mechanism There are two support rods 3 supported on the ground, a pair of movable support mechanisms form a four-legged support mechanism, the human body tied to the waist assembly 8 is located in the middle of the four-legged support mechanism, and the buffer cylinder 5 is in the middle. The protruding end of the piston rod 6 is connected with the side of the waist assembly 8 through the connecting belt 7. The waist assembly 8 is provided with a tension three-way valve 14, and the control valve cores 142 of the tension three-way valve 14 are respectively connected to the waist assembly 8. The connecting belts 7 on both sides are controlled by the pulling force of the connecting belts 7 to control the opening and closing of each air inlet of the pulling force three-way valve 14, and the balanced air outlets of the lower chambers of the two buffer cylinders 5 pass through the pulling force three-way valve 14. The through valve 14 is connected to the same balanced exhaust port provided with a restrictor valve one 16 , the lower cavity is also provided with a single-side exhaust port, and the single-side exhaust port is provided with a restrictor valve II 17 .

The waist assembly 8 is also equipped with an on-off valve and a posture detection module that can detect whether the human body has a tendency to fall. The movable support mechanism can increase the distance between the two support rods 3 through the stretching mechanism 18. The posture detection module When it is detected that the human body is likely to fall, the stretching mechanism 18 is activated to deploy and open the on-off valve,

The inside of the lateral support 4 is also provided with a gas generating device 13 that generates a large amount of gas after starting. The on-off valve is a pneumatic on-off valve 15. The port is connected to the stretching mechanism 18 and the pneumatic switch valve 15 through a pipeline, the pneumatic switch valve 15 is opened when the gas generating device 13 is activated, the gas generating device 13 is activated by the attitude detection module, and the pneumatic The on-off valve 15 is used to control the on-off of the pipeline between the tension three-way valve 14 and the balance exhaust port.

The tension three-way valve 14 includes a three-way valve body 141, the control valve core 142 and a curved elastic plug 145. The three-way valve body 141 is provided with two air inlet ports 144 and one In the inner air outlet, each of the inner air inlet ports 144 is communicated with the lower cavity on the opposite side, the valve body has a central valve cavity 146, and the inner air inlet ports 144 are respectively provided in At the left and right ends of the central valve cavity 146, the control valve core 142 is slidably connected with the three-way valve body 141 in the left-right direction, and the left and right ends of the control valve core 142 protrude from the three-way valve valve. The control valve core 142 is provided with a central block 143 extending between the two air inlets 144 in the middle, and the two ends of the central block 143 are fixed with The curved elastic plugs 145 that block the two air inlet inner ports 144, the air outlet inner ports are connected to the central valve cavity 146, and the central block 143 is located in the center when the tension of the connecting belts 7 on both sides is balanced. The valve cavity 146 is in the center, and the two inner air inlets 144 are sealed by the curved elastic plugs 145 at the same time.

The movable support mechanism includes a T-shaped support rod 2 and the support rod 3, the upper end of the vertical part of the T-shaped support rod 2 is fixed on the side of the lateral support 4, and the top of the support rod 3 is slidably sleeved. 12 is connected to both ends of the horizontal part of the T-shaped support rod 2, the lower end of the support rod 3 is equipped with a roller 31, and the T-shaped support rod 2 is connected to a pair of the support rods 3 through the stretching mechanism 18. , the lower end of the support rod 3 is also provided with a support member 10 that is supported on the ground when the extension mechanism 18 is deployed.

The extension mechanism 18 includes a fixed seat 1 fixed on the side of the lateral support 4 , a sliding sleeve 12 connected to the vertical part of the sliding sleeve 12 , an extension link 9 and a tension spring 19 . There is an air intake cavity in a vertical direction, the air intake cavity is connected to the air injection port of the gas generating device 13 through a pipeline, and the sliding sleeve 12 is slidingly fitted with the air intake cavity and passes through the tension spring. 19 is connected to the top of the air inlet cavity, the extension link 9 is symmetrically arranged on both sides of the sliding sleeve 12, the top of the support rod 3 has a horizontal tube sleeve with one end open, the extension link 9 One end is hinged to the sliding sleeve 12 and the other end is hinged to the horizontal pipe sleeve, and the horizontal pipe sleeve sliding sleeve 12 is connected to the end of the horizontal part.

Both sides of the lower end of the support rod 3 are hinged to a support member 10 through a hinge seat. The support member 10 is connected to the support rod 3 through a torsion spring 102 and is tilted upward in a natural state. The inner side of the support member 10 A cable 101 is connected, the center of the support rod 3 is provided with a central channel 33 that communicates with the inner cavity of the horizontal sleeve 11 , and the lower end of the central channel 33 is connected to the cable 101 from both sides of the opening. 101 passes from the central channel 33 and connects to the end of the horizontal portion.

The lateral support 4 includes a C-shaped beam and a structural warehouse, the auxiliary cylinder 5 and the support mechanism are installed on both sides of the C-shaped beam, and the structural warehouse is connected to the waist assembly 8 through pipelines, so A control module and a gas circuit valve are arranged in the structural chamber.

A cylinder spring is arranged in the lower cavity, one end of the cylinder spring is connected to the bottom of the cylinder and the other end is connected to the bottom of the piston, the upper cavity is connected to the outside through a free vent hole, and the upper cavity is It communicates with the outside world through the free suction hole.

The horizontal pipe sleeve is provided with a snap-on assembly 32, and the snap-on assembly 32 includes a buckle groove located on the top of the horizontal pipe sleeve. The buckle groove is fixedly connected with an elastic piece and is connected to the principle of the elastic piece. At one end of the vertical part, a trigger is fixed on the elastic piece, and a clamping block is arranged under the elastic piece, and the clamping block has a clamping surface in the direction of the vertical part. The protruding end is rounded, and the rounded corner is higher than the horizontal portion when the trigger is lifted upwards. When the stretching mechanism 18 is deployed, the engaging surface is caught on the end face of the horizontal portion.

When the present invention is in use, in the initial state, the extended end of the piston rod 6 of the buffer cylinder 5 is located at the waist level of the user. When the user ties the waist assembly 8, the lateral support 4 is located behind the waist. During normal walking, the support rod 3 moves with the user through the lower roller 31 in contact with the ground. The human body is located in the middle position of the four-legged support mechanism. The device can realize auxiliary support in all directions and has a certain anti-fall effect. When the user performs actions such as squatting, since the buffer cylinders 5 on both sides keep synchronously descending, it helps the user to maintain balance. At the same time, since the lateral support 4 is located behind the user, when squatting or sitting down, the support bar 3 and the lateral support 4 move together with the waist of the user to reduce obstacles to the above activities.

The posture detection module of the waist assembly 8 sends the detected posture signal to the control module. When the user loses balance and may fall, the control module finds that the posture is abnormal and immediately starts the gas generating device 13, and then quickly opens the pneumatic switch valve 15 and the stretching mechanism. 18. The extension mechanism 18 increases the distance between the support rods 3, which increases the supporting area of the bottom of the quadruped support mechanism. In this way, when the device falls, the center of gravity of the user can be maintained within the enlarged support surface, thereby producing a more stable support effect and preventing the user from falling. At the same time, if the buffer cylinder 5 is subjected to a large pressure exerted by the user due to the loss of balance in the process, it can stably descend at a relatively uniform speed. The user's center of gravity further reduces the possibility of tipping over.

Since the user's fall may be caused by the uneven ground, the support rods 3 on both sides may also have different heights on both sides due to the uneven ground, thereby causing the user's center of gravity to be skewed and tend to be lower side, resulting in reduced stability. Since the connecting belt 7 on the higher side is subjected to more pulling force when the user deviates to one side, the pulling force on the control spool 142 becomes unbalanced. The control spool 142 moves to the higher side due to the unbalanced pulling force, thereby opening the air inlet on the higher side, plus the pneumatic switch valve 15 opened by the gas generating device 13, the buffer cylinder 5 on the higher side not only It can be exhausted through one side exhaust port or through the balance exhaust port, so the descending speed of the piston rod 6 is greater than that of the other side, and when the height of the piston rod 6 on both sides is close to the same level, the user The deflection state is improved, the tension of the connecting belts 7 on both sides is close to balance again, the tension three-way valve 14 is restored to the state where the air inlets on both sides are sealed again, and the descending speed of the piston rod 6 of the buffer cylinder 5 becomes the same again. In this way, when the ground is uneven, the tension three-way valve 14 controls the horizontal height of the piston rods 6 of the buffer cylinders 5 on both sides to be equal when descending, thereby helping the user to restore the balance, thus effectively preventing the user from rolling over.

When the support rod 3 is opened by the stretching mechanism 18, at the same time, both ends of the horizontal part of the lower side of the T-shaped straight rod are connected to the cable 101. Therefore, the cable 101 pulls the support member 10 in the support rod 3 to rotate relatively downward, and the bottom of the support member 10 is connected. Contact with the ground achieves the effect of supporting and increasing friction. At the same time, when the clamping assembly 32 moves to the end of the horizontal part, the clamping block is pressed down by the elastic sheet to clamp the end face of the horizontal part to prevent the support rod 3 from retracting, so that The expanded state of the support rod 3 is maintained, and the contact between the support member 10 and the ground is maintained, so as to realize the dual effects of extending the quadruped support mechanism, maintaining the support and fixing, and preventing itself from sliding.

The present invention has been exemplarily described above in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above-mentioned manner, as long as various insubstantial improvements made by the inventive concept and technical solutions of the present invention are adopted, or no improvement is made. The direct application of the concept and technical solutions of the present invention to other occasions falls within the protection scope of the present invention.

Claims (9)

1. An auxiliary walking device with a buffering and anti-falling effect, characterized in that it comprises a waist assembly (8) tied to the waist, a buffer cylinder (5) located on both sides of the waist assembly (8), A lateral support (4) between the buffer cylinders (5) and a pair of movable support mechanisms connected on both sides of the lateral support (4), the buffer cylinder (5) is divided into an upper cavity and a lower cavity by the piston , each of the movable support mechanisms is provided with two support rods (3) supported on the ground, a pair of movable support mechanisms form a quadruped support mechanism, and the human body tied to the waist assembly (8) is located on the quadrupeds In the middle position of the support mechanism, the protruding end of the piston rod (6) of the buffer cylinder (5) is connected with the side edge of the waist assembly (8) through the connecting belt (7). There is a tension three-way valve (14), and the control spool (142) of the tension three-way valve (14) is respectively connected to the connecting belts (7) on both sides, and is controlled by the pulling force of the connecting belt (7). The opening and closing of each air inlet of the tension three-way valve (14), the balanced air outlets of the lower chambers of the two buffer cylinders (5) are connected to the same one equipped with a restrictor valve through the tension three-way valve (14). (16) The balanced exhaust port, the lower cavity is further provided with a single-side exhaust port, and the single-side exhaust port is provided with a restrictor valve two (17). 2. A kind of auxiliary walking device with buffering and anti-falling effect according to claim 1, characterized in that: an on-off valve and a posture detection capable of detecting whether a human body has a tendency to fall is also installed inside the waist assembly (8) Module, the movable support mechanism can increase the distance between the two support rods (3) through the stretching mechanism (18), and the posture detection module starts the stretching mechanism (18) when it detects that the human body is likely to fall. Open the on-off valve. 3. A kind of auxiliary walking device with buffering and anti-falling effect according to claim 2, characterized in that: the lateral support (4) is also provided with a gas generating device (13) that generates a large amount of gas after starting, so The on-off valve is a pneumatic on-off valve (15), the stretching mechanism (18) is expanded through the intake of high-pressure gas, and the jet port of the gas generating device (13) is connected to the stretching mechanism (18) and the pneumatic valve through a pipeline. A switch valve (15), the pneumatic switch valve (15) is opened when the gas generating device (13) is activated, the gas generating device (13) is activated by the attitude detection module, and the pneumatic switch valve (15) It is used to control the on-off of the pipeline between the tension three-way valve (14) and the balance exhaust port. 4. An auxiliary walking device with buffering and anti-falling effect according to claim 3, characterized in that: the tension three-way valve (14) comprises a three-way valve body (141), the control valve core ( 142) and a curved elastic plug (145), the three-way valve body (141) is provided with two air inlet ports (144) and one air outlet inner port, each of the air inlet inner ports (144) are all communicated with the lower cavity on the opposite side, the valve body has a central valve cavity (146), and the air inlet ports (144) are respectively provided in the central valve cavity (146). ), the control valve core (142) is slidably connected with the three-way valve body (141) in the left-right direction, and the left and right ends of the control valve core (142) protrude from the three-way valve The valve body (141) is connected to the connecting belts (7) on both sides respectively, and the center of the control valve core (142) is provided with a central block (143) extending between the two air inlet ports (144). Both ends of the central block (143) are fixed with arc-surface elastic plugs (145) for blocking the two inner air inlets (144) respectively, and the inner air outlets are connected to the central valve cavity (146), and at When the tension of the connecting belts (7) on both sides is balanced, the central block (143) is located in the center of the central valve cavity (146), and the two inner air inlets (144) are simultaneously blocked by the curved elastic plugs ( 145) Sealed. 5. An auxiliary walking device with buffering and anti-falling effect according to claim 4, characterized in that: the movable support mechanism comprises a T-shaped support rod (2) and the support rod (3), the T-shaped support rod (2) and the support rod (3). The upper end of the vertical part of the support rod (2) is fixed on the side of the lateral support (4), and the top sliding sleeve (12) of the support rod (3) is connected to the T-shaped support rod (2). At both ends of the horizontal part, rollers (31) are installed at the lower ends of the support rods (3), and the T-shaped support rods (2) are connected to a pair of the support rods (3) through the stretching mechanism (18), The lower end of the support rod (3) is also provided with a support member (10) that is supported on the ground when the extension mechanism (18) is deployed. 6. A kind of auxiliary walking device with buffering and anti-falling effect according to claim 5, characterized in that: the stretching mechanism (18) comprises a fixing seat (1) fixed on the side surface of the lateral support (4), The sliding sleeve (12) is connected to the sliding sleeve (12) of the vertical part, the extension link (9) and the tension spring (19), and the fixed seat (1) is provided with a vertical air inlet cavity , the air inlet cavity is connected to the air injection port of the gas generating device (13) through a pipeline, the sliding sleeve (12) is slidably fitted with the air inlet cavity and is connected to the air inlet through the tension spring (19). The top of the air inlet cavity is connected, the stretch rod (9) is symmetrically arranged on both sides of the sliding sleeve (12), the top of the support rod (3) has a horizontal tube sleeve with one end open, the stretch One end of the connecting rod (9) is hinged to the sliding sleeve (12) and the other end is hinged to the horizontal pipe sleeve, and the horizontal pipe sleeve sliding sleeve (12) is connected to the end of the horizontal part. 7. A kind of auxiliary walking device with buffering and anti-falling effect according to claim 6, characterized in that: both sides of the lower end of the support rod (3) are hinged with a support (10) through a hinge seat, and the support The support member (10) is connected with the support rod (3) through a torsion spring (102) and tilted upward in a natural state, the inner side of the support member (10) is connected with a cable (101), and the support rod ( 3) The center is provided with a central channel (33) that communicates with the inner cavity of the horizontal sleeve (11). 101) is passed from the central channel (33) and connected to the end of the horizontal portion. 8. An auxiliary walking device with buffering and anti-falling effect according to claim 4, characterized in that: the lateral support (4) comprises a C-shaped beam and a structural bin, the auxiliary cylinder (5) and the The supporting mechanisms are installed on both sides of the C-shaped beam, the structural compartment is connected to the waist assembly (8) through pipelines, and a control module and a gas path valve are arranged in the structural compartment. 9 . The auxiliary walking device with buffering and anti-fall effect according to claim 1 , wherein a cylinder spring is arranged in the lower cavity, one end of the cylinder spring is connected to the bottom of the cylinder and the other end is connected to the bottom of the cylinder. 10 . Connected to the bottom of the piston, the upper cavity is connected to the outside through a free ventilation hole, and the upper cavity is connected to the outside through a free air suction hole.

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