CN110812021B

CN110812021B - A walker capable of sitting and walking and using method

Info

Publication number: CN110812021B
Application number: CN201911121110.2A
Authority: CN
Inventors: 张力; 袁欣灿; 彭泽锴; 王子龙
Original assignee: China Three Gorges University CTGU
Current assignee: China Three Gorges University CTGU
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2021-06-04
Anticipated expiration: 2039-11-15
Also published as: CN110812021A

Abstract

The invention discloses a walker capable of sitting and walking and a method of using it. The user can not only support the walking, but also can sit and rest in it at any time, and at the same time, it can also assist the user to get up from a sitting position to a standing position. The walker includes an auxiliary stand-up part, a seat plate retractable part, a brake part, and a walker frame; the auxiliary stand-up part, which is installed above the walker frame, can assist the user to get up, and the user can support the walker. Walking; the seat board retractable part is installed inside the walker frame, before the user sits down, the two seat boards can be laid flat, and after the user gets up, the two seat boards will be retracted to both sides; the brake The components are installed on both sides of the front lower part of the walker frame, and it controls the braking of the walker. The walker can take care of the walking needs of the elderly with inconvenient legs and feet.

Description

Walking aid vehicle convenient for sitting and walking and using method

Technical Field

The invention relates to an old-people assisting machine and a using method thereof, in particular to a walking aid vehicle which can be independently used by old people and is convenient for walking and resting.

Background

When the aging society comes, the number of empty nesters is more and more, and a plurality of old people are inconvenient in legs and feet, people need to help others to go out and walk, children are busy in work, the old people do not have time to take care of the old people, the cost is too high if the old people need to be protected, the old people who are inconvenient in legs and feet are worried about to walk alone if the old people send the old people to a welfare house, and the problem that the old people who are inconvenient in legs and feet need to walk alone is solved.

Disclosure of Invention

In view of the above problems, it is a primary object of the present invention to provide a walker for the elderly who can be used alone, wherein the elderly can not only walk while sitting thereon for a rest, but also stand up from a sitting position to a standing position.

In order to achieve the technical features, the invention is realized as follows: a walking aid vehicle convenient for sitting and walking comprises an auxiliary rising part, a seat plate folding and unfolding part, a brake part and a walking aid vehicle frame; the auxiliary rising part is arranged above the frame of the walking aid vehicle and is used for assisting a user to rise and support the user to walk; the seat plate folding and unfolding component is arranged in the frame of the walking aid vehicle, and ensures that the two seat plates can be laid flat before a user sits down, and the two seat plates can be folded towards two sides after the user gets up; the brake components are arranged on two sides of the front lower part of the frame of the walking aid vehicle and are matched with the rear wheel components of the frame of the walking aid vehicle to control the brake of the whole walking aid vehicle.

The auxiliary rising part comprises a push rod hinge seat, an electric push rod, a driven double-connecting rod, an anti-falling barrier strip, a handle, an electric control button, an arm support, a rising part support frame and an arm support beam; the push rod hinge seat is connected to the driven double-connecting rod through a screw; the extension bar of the electric push rod is hinged to a push rod hinged seat, and the base of the electric push rod is hinged to a frame of the walking aid vehicle; two ends of the driven double-connecting rod are respectively hinged with the arm support beam and the rising part supporting frame; the anti-falling barrier strip is arranged between the arm support cross beams on the two sides and is used for preventing a user from leaning forward and falling down; the handles are arranged at two ends of the anti-falling barrier strip, and the electric control button is arranged at the top end of the handle; the arm support is arranged on the arm support beam and is used for supporting the forearm of a user.

The seat plate folding and unfolding component comprises a seat plate component frame, an upper synchronous belt wheel, a synchronous belt wheel bracket, a synchronous belt, a guide rail, a synchronous belt pressing plate, a lower synchronous belt wheel, a motor bracket, a direct current motor, a sliding block connecting piece, a seat plate supporting rod, a metal hinge and a seat plate; the upper synchronous belt pulley is arranged in the synchronous belt pulley bracket; the synchronous belt is arranged between the upper synchronous belt wheel and the lower synchronous belt wheel and jointly forms belt transmission; the sliding block is arranged on the guide rail, the sliding block and the guide rail form a guide rail pair, and two pairs of guide rail pairs which are arranged in front and back are respectively arranged on two sides of the frame of the base plate component; the sliding block connecting piece is arranged on the front sliding block and the rear sliding block, and the synchronous belt is clamped on the sliding block connecting piece by the synchronous belt pressing plate; the direct current motor is arranged on the motor bracket, an output shaft of the direct current motor is fixedly connected with a synchronous belt wheel below the direct current motor and drives the synchronous belt to run, and the running of the synchronous belt drives the sliding block connecting piece to move up and down along the guide rail; one end of the seat board supporting rod is hinged to the sliding block connecting piece, and the other end of the seat board supporting rod is hinged to the seat board; the bedplate has about two, and its inboard support is on the bedplate bracing piece, and its outside articulates on bedplate part frame through metal hinge, when slider connecting piece rebound, through bedplate bracing piece promote about two bedplate rotate to bedplate part frame inner wall both sides to metal hinge top.

The brake component comprises a steering engine bracket, a steering engine arm, a driving connecting rod, a driven connecting rod, a brake guide rail, a sliding block frame and a brake pad; the steering engine is fixedly connected to the brake guide rail through a steering engine bracket, and an output shaft of the steering engine drives the driving connecting rod to rotate through a steering engine arm; the driving connecting rod drives the sliding block frame to slide back and forth along the brake guide rail through the driven connecting rod; the brake block is fixedly connected to the front side wall of the sliding block frame through a screw, when the driving connecting rod rotates to be positioned on the same straight line with the driven connecting rod, and the connecting rod mechanism is positioned at a dead point position, the convex strip of the brake block is tightly pressed on a rear wheel tire, so that the braking action is realized.

The walking aid frame comprises an electric cabinet, a front wheel bracket, a front wheel component, a storage battery, a rear wheel component and an aluminum alloy frame; the front wheel component is arranged below the cross beams on two sides of the front part of the aluminum alloy frame through a front wheel bracket, and the front wheel of the front wheel component can rotate universally; the rear wheel components are arranged on vertical beams on two sides of the rear part of the aluminum alloy frame; the storage battery and the electric cabinet are respectively fixed on two sides of the aluminum alloy frame.

The use method of the walking aid vehicle for sitting and walking to relieve the bowels comprises the following steps:

step 1: when the walker is in the walking-assisting posture, the seat board is folded towards two sides, the user walks into the walker, holds the handle by hands and places the small arm in the arm support, and the user can walk by depending on the walker;

step 2: if a user wants to sit down for rest, the electric control button at the top end of the left handle is pressed down by a left thumb, the steering engine rotates to drive the protruding strips of the brake pad to be pressed tightly with the rear wheel of the rear wheel component to realize braking, then the direct current motor works, and the two seat boards are driven by the synchronous belt to rotate to the horizontal position;

step 3: after the two seat plates are laid flat, the electric push rod extends to retract, the driven double connecting rods are driven to rotate downwards, meanwhile, a user holds the handle, and the arm support is supported by the small arm of the user to slowly sit down;

step 4: if the user walks again, the user presses the right electric control button by using the thumb of the right hand, the electric push rod extends out of the rod to drive the driven double-connecting rod to rotate, the arm support is lifted obliquely upwards, meanwhile, the user slowly lifts up along with the arm support until the user stands up, then the direct current motor immediately works to pack up the two seat plates towards two sides, then the steering engine reversely rotates to enable the protruding strips of the brake pad to be separated from the rear wheel tires of the rear wheel component, and at the moment, the user is in a walking assisting posture, and the user can walk on the walking assistant vehicle again;

step 5: when the walker is in the walking-assist posture, the user can turn around to walk out of the walker.

The invention has the following beneficial effects:

1. the walking aid vehicle provided by the invention has the function of assisting a user to walk by using the walking aid device on the market, the user can sit on the seat plate for rest under the condition of not turning, and the user can stand up and sit on the seat plate by using the auxiliary standing part, so that the walking aid vehicle fully takes care of the walking requirement of the old with inconvenient legs and feet.

2. The walking aid vehicle provided by the invention has the advantages that the old can independently operate without assistance of other people, so that the auxiliary rising part, the seat plate folding and unfolding part and the brake part are all electrically controlled, and a user can automatically complete all actions of the three parts by driving the transmission mechanism through the motor only by pressing the electric control button at the top end of the handle with the thumb.

3. The seat board of the walking aid vehicle provided by the invention is divided into a left seat board and a right seat board, and the two seat boards are folded to two sides of the walking aid vehicle before a user walks, so that the seat board positioned behind thighs of the user is prevented from obstructing the walking of the user.

4. The assistant rising part of the walking aid vehicle adopts the parallel connecting rod mechanism as the driven double connecting rod, and the design ensures that the forearm of a user can move obliquely upwards in a horizontal posture, so that the user can rise by virtue of the assistance of force.

5. The invention provides a seat plate folding and unfolding component of a walking aid vehicle, which adopts a crank slide block mechanism, drives a slide block through a synchronous belt, and then drives a seat plate supporting rod to enable a left seat plate and a right seat plate to be folded and unfolded in a rotating way. When the seat board rotates to the flat position, the sliding block is limited by the stop dog below, and at the moment, the seat board supporting rod can support the seat board, so that the seat board can bear the pressure generated when a user sits down.

Drawings

The invention is further illustrated by the following figures and examples.

Fig. 1 is an overall structural view of the present invention.

Fig. 2 is a structural view of the rising aid of the present invention.

Fig. 3 is a structural view of a seat plate housing part of the present invention.

Fig. 4 is a structural view of a brake part of the present invention.

FIG. 5 is a frame structure of the walker of the present invention.

In the figure: an auxiliary rising part 10, a seat plate folding and unfolding part 20, a brake part 30 and a frame part 40 of the walking aid vehicle;

the device comprises a push rod hinge seat 101, an electric push rod 102, a driven double-connecting rod 103, an anti-falling barrier strip 104, a handle 105, an electric control button 106, an arm support 107, a rising part support frame 108 and an arm support beam 109;

the seat plate component comprises a seat plate component frame 201, an upper synchronous pulley 202, a synchronous pulley bracket 203, a synchronous belt 204, a guide rail 205, a synchronous belt pressing plate 206, a lower synchronous pulley 207, a motor bracket 208, a direct current motor 209, a sliding block 210, a sliding block connecting piece 211, a seat plate supporting rod 212, a metal hinge 213 and a seat plate 214;

the brake comprises a steering engine bracket 301, a steering engine 302, a steering engine arm 303, a driving connecting rod 304, a driven connecting rod 305, a brake guide rail 306, a sliding block frame 307 and a brake block 308;

the electric control box 401, the front wheel bracket 402, the front wheel component 403, the storage battery 404, the rear wheel component 405 and the aluminum alloy frame 406.

Detailed Description

Embodiments of the present invention will be further described with reference to the accompanying drawings.

Example 1:

referring to fig. 1, a walker for relieving the bowels while sitting on a walk comprises an auxiliary rising part 10, a seat plate accommodating part 20, a brake part 30 and a walker frame 40, wherein the auxiliary rising part 10 is mounted above the walker frame 40, can assist a user to rise, and can support the user to walk; the seat plate folding and unfolding component 20 is arranged in the frame 40 of the walking aid vehicle, when a user sits down, the two seat plates can be laid flat, and when the user gets up, the two seat plates can be folded towards two sides; the brake units 30 are installed at both sides of the front lower portion of the walker frame 40 and control the braking of the walker. The walking aid vehicle with the structure is mainly used for the old, can assist the old to walk and has a good supporting effect on the old, and in addition, can assist the old to stand and support the old in the vertical process, and can be convenient for the old to take through the seat plate folding and unfolding component 20.

As shown in fig. 2, further, the auxiliary rising part 10 comprises a push rod hinge seat 101, an electric push rod 102, a driven double-link 103, an anti-falling bar 104, a handle 105, an electric control button 106, an arm support 107, a rising part support frame 108 and an arm support cross beam 109, wherein the push rod hinge seat 101 is connected to the driven double-link 103 through screws; the electric push rod 102, the extension rod of which is hinged to the push rod hinge seat 101, and the base of which is hinged to the walker frame 40; two ends of the driven double connecting rod 103 are respectively hinged with an arm support beam 109 and a rising part supporting frame 108; the anti-falling barrier strips 104 connect the arm support beams 109 on the two sides and are used for preventing the user from falling forward; the handles 105 are arranged at two ends of the anti-falling barrier strip 104, and the electric control button 106 is arranged at the top end of the handles 105; the arm rest 107 is mounted on an arm rest cross member 109 in which the user's forearm is supported. Through the process of standing of foretell structure mainly used supplementary old man, when the old man need stand, through control electric putter 102, and then promote driven double connecting rod 103 through electric putter 102, the arm that drives its top again by driven double connecting rod 103 holds in the palm crossbeam 109 and goes up and down, finally holds in the palm the crossbeam 109 through the arm and holds in the palm the arm and hold in the palm 107, has guaranteed to carry out auxiliary stay to the arm of old man, and then makes things convenient for it to stand.

As shown in fig. 3, the seat plate retracting and releasing component 20 further includes a seat plate component frame 201, an upper synchronous pulley 202, a synchronous belt bracket 203, a synchronous belt 204, a guide rail 205, a synchronous belt pressing plate 206, a lower synchronous pulley 207, a motor bracket 208, a dc motor 209, a slider 210, a slider connecting piece 211, a seat plate supporting rod 212, a metal hinge 213, and a seat plate 214, wherein the upper synchronous pulley 202 is installed in the synchronous pulley bracket 203; the synchronous belt 204 is arranged between the upper synchronous pulley 202 and the lower synchronous pulley 207, and the three components form belt transmission; the slide block 210 is mounted on the guide rail 205, the slide block 210 and the guide rail 205 form a guide rail pair, and two pairs of guide rail pairs which are arranged in front and back are respectively arranged on two sides of the seat plate component frame 201; the front and rear sliders 210 are connected by the slider connecting piece 211, and the synchronous belt 204 is clamped on the slider connecting piece 211 by the synchronous belt pressing plate 206; the direct current motor 209 is installed on the motor bracket 208, the output shaft of the direct current motor is fixedly connected with the lower synchronous pulley 207, the direct current motor drives the synchronous belt 204 to run, and the running of the synchronous belt 204 drives the sliding block connecting piece 211 to move up and down along the guide rail 205; the seat plate support rod 212 is hinged to the slider connecting piece 211 at one end and hinged to the seat plate 214 at the other end; the seat plate 214 has two left and right seat plates, the inner sides of which are supported on the seat plate support rod 212, the outer sides of which are hinged on the seat plate component frame 201 through metal hinges 213, when the slide block connecting piece 211 moves upwards, the two left and right seat plates 214 are pushed to rotate upwards to the two sides of the inner wall of the seat plate component frame 201 around the metal hinges 213 through the seat plate support rod 212. The seat board folding and unfolding component 20 can be conveniently folded and put down, so that the old can be seated and folded in the walking process to provide a walking space.

In the specific working process, when the chair needs to sit down for rest, the direct current motor 209 drives the lower synchronous belt pulley 207, the lower synchronous belt pulley 207 drives the slider connecting piece 211 to slide along the guide rail 205 synchronously, and the slider connecting piece 211 drives the chair plate supporting rod 212 to drive the chair plate 214 hinged with the base plate to rotate, so that the chair plate 214 is opened or erected.

As shown in fig. 4, further, the brake component 30 includes a steering engine bracket 301, a steering engine 302, a steering engine arm 303, a driving connecting rod 304, a driven connecting rod 305, a brake guide rail 306, a slider frame 307, and a brake pad 308, the steering engine 302 is fixedly connected to the brake guide rail 306 through the steering engine bracket 301, an output shaft of the steering engine 302 drives the driving connecting rod 304 to rotate through the steering engine arm 303, the driving connecting rod 304 drives the slider frame 307 to slide back and forth along the brake guide rail 306 through the driven connecting rod 305, the brake pad 308 is fixedly connected to the front of the slider frame 307 through a screw, and when the driving connecting rod 304 rotates to be positioned on a straight line with the driven connecting rod 305, a protruding strip of the brake pad 308 is tightly pressed on a rear wheel tire, thereby achieving a braking action. The brake component 30 is mainly used for braking, so that the brake component can play a role of safety when stopping, in a specific using process, the driving connecting rod 304 connected with the steering engine 302 is driven to rotate through rotation of the steering engine 302, the driven connecting rod 305 is driven to rotate through the driving connecting rod 304, the slider frame 307 is driven to slide along the brake guide rail 306 through the driven connecting rod 305, the slider frame 307 is pushed to slide, and then the brake block 308 is driven to compress the rear wheel component 405 through the slider frame 307, so that braking is realized.

As shown in fig. 5, further, the walker frame 40 comprises an electric cabinet 401, a front wheel bracket 402, a front wheel component 403, a storage battery 404, a rear wheel component 405, an aluminum alloy frame 406; the front wheel component 403 is arranged below cross beams on two sides of the front part of the aluminum alloy frame 406 through a front wheel bracket 402, and the front wheel of the front wheel component can rotate universally; the rear wheel part 405 is arranged on vertical beams on two sides of the rear part of the aluminum alloy frame 406; the battery 404 and the electric cabinet 401 are fixed on an aluminum alloy frame 406 from left to right. The support for the entire device is enabled by the walker frame 40 described above.

Example 2:

any one of the use methods of the walking aid vehicle for sitting and walking with two defecates comprises the following steps:

step 1: when the walker is in the walking-assisting posture, the seat plate 214 is folded towards two sides, the user walks into the walker, holds the handle 105 by hands and places the small arm in the arm support 107, and the user can walk by depending on the walker;

step 2: if a user wants to sit down for rest, the electric control button 106 at the top end of the left handle 105 is pressed down by a left thumb, the steering engine 302 rotates to drive the protruding strips of the brake pad 308 to be tightly pressed with the rear wheel of the rear wheel part 405, so that braking is realized, then the direct current motor 209 works and is driven by the synchronous belt 204 to enable the two seat plates 214 to rotate to the horizontal position;

step 3: after the two seat plates 214 are laid flat, the electric push rod 102 extends out and retracts to drive the driven double-connecting rod 103 to rotate downwards, meanwhile, a user holds the handle 105 by hand, and the small arm of the user supports the arm support 107 to slowly sit down along with the handle;

step 4: if the user wants to walk again, the user presses the right electric control button 106 with the thumb of the right hand, the electric push rod 102 extends out of the rod to drive the driven double-connecting rod 103 to rotate, the arm support 107 is lifted obliquely upwards, meanwhile, the user slowly lifts up along with the arm support until standing, then the direct current motor 209 works immediately to pack up the two seat plates towards two sides, then the steering engine 302 rotates reversely to enable the protruding strips of the brake pad 308 to be separated from the rear wheel tires of the rear wheel component 405, and at the moment, the walking assisting posture is achieved, and the user can walk on the walking assisting vehicle again;

Claims

1. A walker for sitting and walking, characterized in that: it comprises an auxiliary stand-up part (10), a seat plate retractable part (20), a brake part (30) and a walker frame (40); The assisting getting up component (10) is installed above the walker frame (40), and assists the user to get up and supports his/her walking; the seat plate receiving component (20) is installed inside the walker frame (40) , and ensure that when the user sits down, the two seat plates can be laid flat, and after the user gets up, the two seat plates will be retracted to both sides; the brake component (30) is installed on the walker frame (40) Both sides of the front and lower part of the walker, and cooperate with the rear wheel part (405) of the walker frame (40) to control the braking of the whole walker;

The assisting getting up component (10) comprises a push rod hinge seat (101), an electric push rod (102), a driven double link (103), an anti-fall stop bar (104), a handle (105), an electric control button ( 106), an arm support (107), a stand-up component support frame (108) and an arm support beam (109); the push rod hinge seat (101) is connected to the driven double link (103) by screws; the electric The extension rod of the push rod (102) is hinged to the push rod hinge seat (101), and the base of the electric push rod (102) is hinged to the walker frame (40); The ends are hinged with the arm support beam (109) and the stand-up part support frame (108) respectively; the anti-fall blocking bars (104) are installed between the arm support beams (109) on both sides and are used to prevent the user from falling forward. ; the handle (105) is installed on both ends of the anti-fall blocking bar (104), the electric control button (106) is installed on the top of the handle (105); the arm support (107) is installed on the arm support beam (109) , and is used to support the user's forearm;

The seat plate retractable component (20) includes a seat plate component frame (201), an upper synchronous pulley (202), a synchronous pulley bracket (203), a synchronous belt (204), a guide rail (205), and a synchronous belt pressure plate ( 206), lower synchronous pulley (207), motor bracket (208), DC motor (209), slider (210), slider connector (211), seat plate support rod (212), metal hinge (213) ) and seat plate (214); the upper synchronous pulley (202) is installed in the synchronous pulley bracket (203); the synchronous belt (204) is installed on the upper synchronous pulley (202) and the lower synchronous pulley ( 207) and together form a belt drive; the slider (210) is installed on the guide rail (205), and the slider (210) and the guide rail (205) constitute a guide rail pair, which is on each side of the seat plate component frame (201). There are two pairs of guide rails arranged in the front and rear; the slider connector (211) is installed on the front and rear sliders (210), and the timing belt pressure plate (206) clamps the timing belt (204) on the slider connector (211). ); the DC motor (209) is installed on the motor support (208), and its output shaft is fixedly connected with the lower synchronous pulley (207), and drives the synchronous belt (204) to run, and the operation of the synchronous belt (204) will drive the The slider connector (211) moves up and down along the guide rail (205); one end of the seat plate support rod (212) is hinged to the slider connector (211), and the other end is hinged to the seat plate (214); the seat plate (214) has two left and right pieces, the inner side is supported on the seat plate support rod (212), and the outer side is hinged to the seat plate component frame (201) through the metal hinge (213), when the slider connecting piece (211) moves upwards , push the left and right seat plates (214) around the metal hinges (213) to rotate upwards to both sides of the inner wall of the seat plate component frame (201) through the seat plate support rods (212);

The brake component (30) includes a steering gear bracket (301), a steering gear (302), a steering gear arm (303), a driving link (304), a driven link (305), a brake guide rail (306), a sliding A block frame (307) and a brake pad (308); the steering gear (302) is fixed on the brake guide rail (306) through the steering gear bracket (301), and its output shaft drives the active link through the steering gear arm (303) (304) rotates; the active link (304) drives the slider frame (307) to slide back and forth along the brake guide rail (306) through the driven link (305); the brake pad (308) is fixed and slipped by screws On the front side wall of the block frame (307), when the driving link (304) is rotated to be in a straight line with the driven link (305), and the link mechanism is at the dead center position, the convexity of the brake pad (308) The strip is tightly pressed on the rear tire to realize the braking action;

The walker frame (40) includes an electric control box (401), a front wheel bracket (402), a front wheel part (403), a battery (404), a rear wheel part (405) and an aluminum alloy frame (406) ; the front wheel part (403) is installed under the cross beams on both sides of the front part of the aluminum alloy frame (406) through the front wheel bracket (402), and the front wheel can rotate in all directions; the rear wheel part (405) is installed on the aluminum alloy frame (406) on the vertical beams on both sides of the rear of the alloy frame (406); the battery (404) and the electric control box (401) are respectively fixed on both sides of the aluminum alloy frame (406).

2. the using method of the walker of claim 1, it is characterized in that it comprises the following steps:

Step1: When the walker is in the walking aid posture, its seat plate (214) has been retracted to both sides. The user walks into the inside of the walker, holds the handle (105) with his hand, and places the forearm on the arm rest (107). ), the user can walk on the walker;

Step2: If the user wants to sit down and rest, press the electric control button (106) at the top of the left handle (105) with the thumb of the left hand, and the steering gear (302) rotates to drive the raised strip of the brake pad (308) and the rear wheel The rear tires of the component (405) are pressed tightly to realize braking, and then the DC motor (209) works and is driven by the synchronous belt (204) to rotate the two seat plates (214) to a horizontal position;

Step3: After the two seat plates (214) are flattened, the electric push rod (102) extends out and retracts, driving the driven double link (103) to rotate downward, while the user holds the handle (105), the forearm Support the arm rest (107) and sit down slowly;

Step4: If the user wants to walk again, the user presses the right electric control button (106) with the right thumb, the electric push rod (102) extends out of the rod, and drives the driven double link (103) to rotate, and the arm support (107) ) is lifted diagonally upwards, and at the same time, the user slowly lifts up until he stands up, then the DC motor (209) works immediately, and the two seat plates are folded to the sides, and then the steering gear (302) rotates in the opposite direction, Disengage the raised strip of the brake pad (308) from the rear tire of the rear wheel component (405), and at this time, the user is in a walking aid posture, and the user can walk on the walker again;

Step5: When the walker is in the walking position, the user can also turn around and walk out of the walker.