Rehabilitation exercise walking stick for old people

Abstract

The invention provides a rehabilitation exercise walking stick for old people. The rehabilitation exercise walking stick comprises a telescopic rod; the buffer base is mounted at the bottom end of the telescopic rod, and two groups of grounding parts are arranged in the buffer base; the cleaning scraper is arranged on one side of the ground contact part, and the cleaning scraper abuts against the side face of the ground contact part; the driving mechanism is connected with the telescopic rod, and the driving mechanism is further connected with a transmission part used for driving the circumferential surface of the grounding part to move relative to the cleaning scraper; the anti-pressing part is arranged on the side of the telescopic rod, and the anti-pressing part is provided with a soft block which can be stored or stretch out. Through the telescopic design of the telescopic rods, the telescopic rods are contracted during storage, and the storage size can be reduced; before the crutch is stored, the ground touching part can be automatically cleaned while the telescopic rod is contracted, so that dirt attached to the ground touching part is removed, and convenience is provided for maintenance of the crutch before the crutch is stored.

Description

Technical Field

[0001] The invention relates to the field of training crutch, in particular to a rehabilitation training crutch for the elderly. Background Art

[0002] Crutches play a vital role in the rehabilitation exercise of the elderly. They not only help the elderly maintain balance and prevent falls, but also provide necessary support when walking, reduce the burden on the affected limbs, and promote the rehabilitation process.

[0003] Rehabilitation crutches are often provided with buffers for buffering the impact force with the ground. For example, in the existing patent document "CN111265389B A Rehabilitation Crutches for Elderly People", a buffer mechanism is provided at the lower end of the crutch for buffering the impact force of the ground on the crutch. However, when the crutch is used, especially in outdoor environments, the bottom end of the crutch is in contact with the ground for a long time, which may adhere to dirt on the ground and further contaminate the storage location. Therefore, the crutch needs to be manually cleaned before storage, causing inconvenience in use. Summary of the invention

[0004] The invention provides a rehabilitation exercise crutch for the elderly in order to solve the technical problem that the bottom end of the crutch is not clean before storage.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] The present invention provides a rehabilitation exercise crutch for the elderly, comprising a telescopic rod; further comprising: a buffer base, which is installed at the bottom end of the telescopic rod and has two groups of ground contacting parts arranged in the buffer base; a cleaning scraper, which is arranged on one side of the ground contacting part and abuts against the side surface of the ground contacting part; a driving mechanism, which is connected to the telescopic rod and is also connected to a transmission part for driving the peripheral surface of the ground contacting part to move relative to the cleaning scraper; and an anti-pressure part, which is arranged on the side of the telescopic rod and has a soft block that can be retracted or extended.

[0007] In the present technical solution, the telescopic rod is designed to be retractable, so that when storing, it can be retracted to reduce the storage volume; before storage, when the telescopic rod is retracted, the ground-contacting part can be automatically cleaned to remove dirt attached thereto, thereby providing convenience for the maintenance of the crutch before storage.

[0008] Preferably, the telescopic rod includes a sleeve; a movable rod is slidably installed in the sleeve along the length direction, the movable rod is threadedly connected with a threaded column, and the top of the threaded column is rotatably connected to the sleeve; a square hole is opened at the axis of the threaded column, and the driving mechanism is connected to the square hole.

[0009] In the technical solution, by twisting the threaded rod, the movable rod can be driven to move through the effect of thread transmission, and extend from or retract into the outer jacket.

[0010] Preferably, the number of the anti-pressure parts is two, and the two anti-pressure parts are respectively installed on the top side wall and the bottom side wall of the outer sleeve; the anti-pressure part includes a protective tube, which is fixedly installed on the side wall of the outer sleeve, and a guide hole connected to the inner wall of the outer sleeve is opened in the middle of the protective tube, and a push rod is connected with the guide hole in a clearance fit, and one end of the push rod extends into the outer sleeve, and a soft block is fixedly connected to the other end of the push rod, and the soft block is connected with the inner wall of the protective tube in a clearance fit, and a second spring is arranged in the protective tube, and the soft block and the protective tube are elastically connected through the second spring.

[0011] In the technical solution, the anti-pressure part is designed to extend or retract the soft block therein. Before being hung on the wall, the soft block extends and contacts the wall surface to prevent pressure and avoid damaging or scratching the wall surface.

[0012] Preferably, one end of the push rod is spherical, and two wedge blocks are fixedly installed on the side wall of the movable rod. The two wedge blocks are respectively used to squeeze and push the spherical ends of the push rod of the two anti-pressure parts, and the width of the wedge blocks gradually decreases from top to bottom.

[0013] In this technical solution, the wedge block squeezes and pushes the push rod through the movement of the movable rod to push the soft block out; and the wedge block is separated from the push rod, and the elastic force of the second spring can reset the soft block back into the protective tube.

[0014] Preferably, the buffer base includes a shell and a socket fixedly mounted to the top of the shell, the socket is slidably connected to a slot opened at the bottom end of the movable rod, a first spring is arranged in the slot, and the socket and the movable rod are elastically connected through the first spring; the ground contacting portion is arranged in the shell, and the bottom of the ground contacting portion extends out from the bottom opening of the shell.

[0015] In this technical solution, the buffer base is used to buffer the impact with the ground.

[0016] Preferably, the ground contact portion includes a plurality of carrier rollers; the plurality of carrier rollers are rotatably installed at the four corners of the outer shell, and a belt body is wound around the plurality of carrier rollers; a plurality of support rollers equidistantly distributed are rotatably installed inside the lower part of the outer shell, and the support rollers are in contact with the bottom of the belt body; an active roller is rotatably installed inside the outer shell, and the active roller is in contact with the top inner wall of the belt body.

[0017] In this technical solution, the ground contacting portion contacts the ground.

[0018] Preferably, the transmission part includes a connecting shaft and a rotating column; the connecting shaft is coaxially fixed to the active roller, a first bevel gear is fixed to the connecting shaft, and the first bevel gear is meshingly connected to the second bevel gear; the second bevel gear is fixed to a rotating shaft, the rotating shaft is rotatably connected to the socket, and a square column is fixed to the top of the socket, the rotating column is rotatably installed in the movable rod, a square groove is opened at the bottom end of the rotating column, and the top end of the square column is connected to the square groove with clearance fit.

[0019] In the technical solution, the transmission part is used to drive the belt body of the ground contacting part to move, and the cleaning is performed by the cleaning scraper.

[0020] Preferably, the driving mechanism includes a square sleeve and a fourth spring; the square sleeve is connected to the square hole with a clearance fit, a friction slider is slidably connected to the square sleeve, a round rod is fixed to the bottom of the friction slider, the bottom end of the square sleeve is elastically connected to the bottom end of the square hole through the fourth spring, a top shaft is fixed to the top of the square sleeve, and a grip plate is fixed to the top of the top shaft.

[0021] In this technical solution, the driving mechanism can drive the threaded column and the transmission part.

[0022] Preferably, a circular hole is provided at the top of the rotating column, a circular cavity is provided inside the rotating column, the circular hole is communicated with the circular cavity, and the circular hole, the circular cavity and the rotating shaft are coaxially arranged, the round rod passes through the circular hole, and the round rod extends into the circular cavity, a circular disc is fixedly connected to the bottom end of the round rod, a guide groove is provided on one side of the circular disc, a sloped plug block is slidably connected to the guide groove, a third spring is provided in the guide groove, and the sloped plug block is elastically connected to the guide groove through the third spring.

[0023] Preferably, a circular ring is fixedly installed in the bottom of the circular cavity, the inner diameter of the circular ring is equal to the diameter of the circular disk, and a notch for inserting the inclined surface plug is opened on one side of the circular ring.

[0024] In the present technical solution, the connection between the drive mechanism and the transmission part is detachable, so that when the telescopic rod is extended, the drive mechanism is disconnected from the transmission part, and when the telescopic rod is retracted, the drive mechanism can be connected to the transmission part.

[0025] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present invention.

[0026] The positive and progressive effects of the present invention are:

[0027] The above-mentioned rehabilitation crutch for the elderly, through the arrangement of the telescopic rod and the driving mechanism, is driven by the driving mechanism to extend and retract the telescopic rod, so that the crutch can be stored as a whole after use, which can reduce the storage volume and provide convenience for storage. At the same time, the driving mechanism is connected to the transmission part, and the driving mechanism can also drive the transmission part to move the circumference of the ground contact part about the cleaning scraper, so that the dirt adhered to the ground can be scraped off to achieve cleaning, so that before the crutch is stored, the contraction of the telescopic rod and the cleaning of the ground contact part only need to operate the driving mechanism, which provides convenience for the maintenance of the crutch before storage; further, the driving mechanism and the transmission part are detachably connected, so that In the process of driving the telescopic rod to extend, the driving mechanism does not drive the transmission part, and the cleaning scraper does not scrape the ground-contacting part at this time, thereby avoiding ineffective wear. In the process of driving the telescopic rod to retract, the driving mechanism establishes a connection with the transmission part, so that the ground-contacting part can be automatically cleaned while the telescopic rod is retracted. Furthermore, an anti-pressure part is provided, and when the telescopic rod is extended, the soft block of the anti-pressure part can be retracted into the inside for protection. In the process of retracting the telescopic rod, the wedge block provides a squeezing effect, so that the soft block can be automatically extended. After the crutch is hung on the wall as a whole, the soft block contacts the wall surface, thereby providing soft contact with the wall surface, thereby avoiding damage to the wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0029] Figure 2 It is a structural schematic diagram of the bottom of the buffer base of the present invention.

[0030] Figure 3 It is a schematic diagram of the structure of the interior of the bottom end of the jacket and the interior of the outer shell of the present invention.

[0031] Figure 4 For the present invention Figure 3 Schematic diagram of the structure with the A part in the middle enlarged.

[0032] Figure 5 It is a schematic diagram of the cross-sectional structure of the telescopic rod of the present invention.

[0033] Figure 6 For the present invention Figure 5 Schematic diagram of the structure with the B part enlarged.

[0034] Figure 7 It is a structural schematic diagram of the bottom end of the movable rod of the present invention.

[0035] Figure 8 It is a structural schematic diagram of the top end of the telescopic rod of the present invention.

[0036] Fig. 9 It is a schematic diagram of the structure of the present invention when it is hung on the wall as a whole.

[0037] Description of Reference Numerals

[0038] 1. Telescopic rod; 101. Jacket; 102. Movable rod; 1021. Threaded hole; 1022. Bottom stopper; 1023. Slot; 1024. Top stopper; 103. Threaded column; 1031. Rotating shaft; 1032. Mounting bracket; 1033. Square hole;

[0039] 2. Buffer base; 201. Shell; 202. Belt body; 203. Carrying roller; 204. Support roller; 205. Active roller; 206. Socket; 207. First spring;

[0040] 3. Grip;

[0041] 4. Anti-pressure part; 401. Protective tube; 402. Soft block; 403. Push rod; 404. Second spring;

[0042] 5. Driving mechanism; 501. round rod; 502. round disc; 503. inclined plane plug; 504. third spring; 505. fourth spring; 506. square sleeve; 507. friction slider; 508. top shaft; 509. gripping disc;

[0043] 6. Wedge block;

[0044] 7. Transmission unit; 701. Connecting shaft; 702. First bevel gear; 703. Second bevel gear; 704. Rotating shaft; 705. Square column; 706. Rotating column; 7061. Square groove; 7062. Circular cavity; 7063. Circular ring; 7064. Missing groove;

[0045] 8. Clean the scraper;

[0046] a. Wall. DETAILED DESCRIPTION

[0047] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0048] like Figure 1-9 As shown, the rehabilitation crutch for the elderly includes a telescopic rod 1; and also includes: a buffer base 2, the buffer base 2 is installed at the bottom end of the telescopic rod 1, and two sets of ground contact parts are arranged in the buffer base 2;

[0049] A cleaning scraper 8, wherein the cleaning scraper 8 is disposed on one side of the ground contact portion, and the cleaning scraper 8 abuts against the side surface of the ground contact portion;

[0050] A driving mechanism 5, wherein the driving mechanism 5 is connected to the telescopic rod 1, and the driving mechanism 5 is also connected to a transmission part 7 for driving the peripheral surface of the ground contacting part to move relative to the cleaning scraper 8;

[0051] The anti-pressure part 4 is arranged on the side of the telescopic rod 1, and the anti-pressure part 4 is provided with a soft block 402 that can be stored or extended.

[0052] The telescopic rod 1 includes a sleeve 101; a movable rod 102 is slidably installed in the sleeve 101 along the length direction, the movable rod 102 is threadedly connected with a threaded column 103, and the top of the threaded column 103 is rotatably connected to the sleeve 101; a square hole 1033 is opened at the axis of the threaded column 103, and the driving mechanism 5 is connected to the square hole 1033.

[0053] like Figure 4 , Figure 5 , Figure 7 as well as Figure 8 As shown, as a specific technical solution, the front and rear side surfaces of the movable rod 102 are fitted with the front and rear inner walls of the outer jacket 101, and the left side surface of the movable rod 102 is fitted with the left inner wall of the outer jacket 101, and at the same time, a top stop seat 1024 and a bottom stop seat 1022 are fixedly installed on the right side of the movable rod 102, and the top stop seat 1024 and the bottom stop seat 1022 are fitted with the right inner wall of the outer jacket 101; through the above design, a limit is provided for the movable rod 102, so that the movable rod 102 can only slide along the length direction of the outer jacket 101.

[0054] The bottom end of the outer sleeve 101 is an opening for the bottom end of the movable rod 102 to pass through.

[0055] The movable rod 102 has a threaded hole 1021 through which the movable rod 102 is threadedly connected to the threaded column 103 . The threaded hole 1021 is specifically opened along the length direction of the movable rod 102 . The top end of the threaded hole 1021 is open for inserting the threaded column 103 .

[0056] When the threaded column 103 is driven to rotate, the threaded column 103 and the threaded hole 1021 are screwed together, so that the movable rod 102 moves along the length direction of the outer sleeve 101, thereby changing the length of the movable rod 102 extending from the bottom end of the outer sleeve 101, thereby adjusting the overall length of the telescopic rod 1, i.e., telescoping.

[0057] When in use, the telescopic rod 1 is adjusted to the longest length for use; after use, it is adjusted to the shortest length to reduce its length and volume for convenient storage.

[0058] like Figure 8 As shown, the top of the threaded column 103 is coaxially fixed with a rotating shaft 1031, and a mounting frame 1032 is fixedly installed on the inner wall of the outer sleeve 101. The rotating shaft 1031 is rotatably connected to the mounting frame 1032. Through the above design, the rotating installation of the threaded column 103 and the outer sleeve 101 is realized.

[0059] The square hole 1033 in the threaded column 103 extends and passes through the axis of the rotating shaft 1031 .

[0060] like Figure 3 , Figure 5 , Figure 7 as well as Figure 8 As shown, as a specific technical solution, the number of the anti-pressure parts 4 is two, and the two anti-pressure parts 4 are respectively installed on the top side wall and the bottom side wall of the outer sleeve 101; the anti-pressure part 4 includes a protective tube 401, and the protective tube 401 is fixedly installed on the side wall of the outer sleeve 101, and a guide hole connected to the inner wall of the outer sleeve 101 is opened in the middle of the protective tube 401, and a push rod 403 is connected with the guide hole through a clearance fit, and one end of the push rod 403 extends into the outer sleeve 101, and a soft block 402 is fixedly connected to the other end of the push rod 403, and the soft block 402 is connected with the inner wall of the protective tube 401 through a clearance fit, and a second spring 404 is arranged in the protective tube 401, and the soft block 402 and the protective tube 401 are elastically connected through the second spring 404.

[0061] One end of the push rod 403 is spherical, and two wedge blocks 6 are fixedly installed on the side wall of the movable rod 102. The two wedge blocks 6 are respectively used to squeeze and push the spherical ends of the push rod 403 of the two anti-pressure parts 4, and the width of the wedge blocks 6 gradually decreases from top to bottom.

[0062] A bottom stopper 1022 and a top stopper 1024 are fixedly mounted on the right side surface of the movable rod 102; Figure 5 As shown, when the movable rod 102 is stored in the outer sleeve 101, that is, the telescopic rod 1 is stored in the shortest state, the top surface of the bottom stopper 1022 contacts the bottom surface of the protective tube 401 of the anti-pressure part 4 at the bottom end of the outer sleeve 101.

[0063] When the movable rod 102 extends out of the outer sleeve 101 to the maximum extent, the top stopper 1024 contacts the top surface of the protective tube 401 of the anti-pressure portion 4 at the bottom end of the outer sleeve 101 .

[0064] The bottom stopper 1022 and the top stopper 1024 are provided to stop the telescopic rod 1 in place when it is extended to the longest or shortest state.

[0065] like Figure 5 As shown, at this time, the telescopic rod 1 is in the retracted state, wherein the wider parts of the two wedge-shaped blocks 6 contact the ends of the push rods 403 of the two anti-pressure parts 4, squeezing the push rods 403, causing the second spring 404 to produce a tensile deformation, and the soft block 402 extends out from the protective tube 401.

[0066] In the above state, when the entire exercise crutch is hung on the hook of the wall a, Fig. 9As shown, the extended soft block 402 contacts the wall a to provide soft contact, and other positions of the crutch do not contact the wall, thereby avoiding crushing of the wall or scratches and scrapes caused by the crutch when being taken, placed or moved.

[0067] Take it off the hook on the wall a for use, and extend the telescopic rod 1, that is, the movable rod 102 drives the wedge block 6 to move downward, and the width of the position where the wedge block 6 contacts the spherical end of the push rod 403 gradually decreases until the telescopic rod 1 is fully extended, and the push rod 403 of the low-position anti-pressure part 4 contacts the side of the movable rod 102, and the push rod 403 of the high-position anti-pressure part 4 is not squeezed by any object. The elastic force of the second spring 404 drives the soft block 402 and the push rod 403 to move together, so that the soft block 402 is stored in the protective shell to provide protection, so as to avoid damage to the soft block 402 due to collision and other factors when used outdoors.

[0068] After the crutch is used, the telescopic rod 1 is retracted to transform the telescopic rod 1 into a Figure 5 As shown, the wedge block 6 is squeezed to push the soft block 402 out of the protective tube 401; during the contraction of the telescopic rod 1, the soft block 402 is automatically pushed out without manual operation; to facilitate subsequent hanging on the wall, the soft block 402 does not need to be manually pushed out.

[0069] The soft block 402 may be made of silicone or sponge.

[0070] like Figure 1 As shown, a handle 3 is fixedly mounted on the outer side wall of the top end of the jacket 101, and the handle 3 is used for hand holding. An inverted L-shape is formed between the handle 3 and the jacket 101, and this design is used to hang on a hook of a wall a.

[0071] like Figure 2-3 As shown, as a specific technical solution, the buffer base 2 includes a shell 201 and a socket 206 fixedly installed on the top of the shell 201, the socket 206 is slidably connected to a slot 1023 opened at the bottom end of the movable rod 102, a first spring 207 is arranged in the slot 1023, and the socket 206 and the movable rod 102 are elastically connected through the first spring 207; the ground contacting portion is arranged in the shell 201, and the bottom of the ground contacting portion extends from the bottom opening of the shell 201.

[0072] The ground contacting portion includes a plurality of carrier rollers 203; the plurality of carrier rollers 203 are rotatably installed at the four corners of the outer shell 201, and a belt body 202 is wound around the plurality of carrier rollers 203; a plurality of support rollers 204 equidistantly distributed are rotatably installed inside the lower part of the outer shell 201, and the support rollers 204 are in contact with the bottom of the belt body 202; an active roller 205 is rotatably installed inside the outer shell 201, and the active roller 205 is in contact with the top inner wall of the belt body 202.

[0073] like Figure 4 and Figure 6 As shown, as a specific technical solution, the transmission part 7 includes a connecting shaft 701 and a rotating column 706; the connecting shaft 701 is coaxially fixed with the active roller 205, and a first bevel gear 702 is fixed to the connecting shaft 701, and the first bevel gear 702 is meshingly connected with a second bevel gear 703; the second bevel gear 703 is fixed with a rotating shaft 704, and the rotating shaft 704 is rotatably connected to the socket 206, and a square column 705 is fixed to the top of the socket 206, and the rotating column 706 is rotatably installed in the movable rod 102, and a square groove 7061 is opened at the bottom end of the rotating column 706, and the top of the square column 705 is connected with the square groove 7061 with a clearance fit.

[0074] Among them, the number of the ground contact parts is two, such as Figure 2 As shown, a slot is formed between the two ground contacting portions. By forming the slot, the bottom end of the rotating shaft 704 of the transmission portion 7 passes through.

[0075] The rotating post 706 is located between the threaded hole 1021 and the slot 1023 .

[0076] When the entire exercise crutch is in use, the buffer base 2 plays a buffering role. Specifically, the buffer base 2 contacts the ground, and after being compressed, the shell 201, the ground contacting portion in the shell 201, and the socket 206 move together about the movable rod 102, and the socket 206 slides with the slot 1023 to compress the first spring 207 for buffering, and the buffer base 2 is separated from the ground, and the compression elastic force of the first spring 207 causes the socket 206 to slide in the slot 1023 for reset.

[0077] After the exercise crutch is used, dirt may adhere to the bottom surface of the belt body 202 at the ground contacting portion; the belt body 202 is driven to move, and the cleaning scraper 8 is used to remove the dirt adhered to the surface of the belt body 202 .

[0078] Specifically, the driving mechanism 5 drives the rotating column 706 to rotate, the rotating column 706 drives the square column 705 to rotate, the rotating shaft 704 rotates with the square column 705, the second bevel gear 703 rotates with the rotating shaft 704, and the second bevel gear 703 is meshed with the first bevel gear 702 to drive the connecting shaft 701 to rotate, and the connecting shaft 701 drives the active roller 205 to rotate, and cooperates with the guiding effect of the carrier roller 203 and the support roller 204 to move the belt body 202 about the cleaning scraper 8, and the dirt on the belt body 202 is scraped off by the cleaning scraper 8.

[0079] like Figure 3 As shown, the cleaning blade 8 is fixed on one inner wall of the housing 201 .

[0080] The driving mechanism 5 is used to drive the threaded column 103 to rotate and drive the transmission part 7 at the same time, so that the telescopic rod 1 can be retracted and the belt body 202 of the buffer base 2 can be automatically cleaned; after the whole crutch is used, the maintenance before storage only needs to operate the driving mechanism 5, which provides convenience for use.

[0081] The connection between the rotating shaft 704 and the rotating column 706 is achieved by plugging the square column 705 and the square groove 7061. When the buffer base 2 performs buffering, the square column 705 and the square groove 7061 slide. This design ensures that the buffer base 2 can perform buffering movement.

[0082] like Figure 5-8 As shown, as a specific technical solution, the driving mechanism 5 includes a square sleeve 506 and a fourth spring 505; the square sleeve 506 is connected to the square hole 1033 with a clearance fit, a friction slider 507 is slidably connected to the square sleeve 506, a round rod 501 is fixed to the bottom of the friction slider 507, the bottom end of the square sleeve 506 is elastically connected to the bottom end of the square hole 1033 through the fourth spring 505, a top shaft 508 is fixed to the top of the square sleeve 506, and a grip plate 509 is fixed to the top of the top shaft 508.

[0083] Among them, the top shaft 508 extends to the top and outside of the outer sleeve 101, so that the handle 509 used for operation is located outside the outer sleeve 101 for hand operation; the bottom end of the round rod 501 extends out from the bottom end of the threaded column 103, the top end of the square sleeve 506 is closed, and the bottom end is open, and the bottom end opening is used for the round rod 501 to pass through.

[0084] A circular hole is provided at the top of the rotating column 706, and a circular cavity 7062 is provided inside the rotating column 706. The circular hole is communicated with the circular cavity 7062, and the circular hole, the circular cavity 7062 and the rotating shaft 1031 are coaxially arranged. The round rod 501 passes through the circular hole and extends into the circular cavity 7062. A disc 502 is fixedly connected to the bottom end of the round rod 501. A guide groove is provided on one side of the disc 502. A sloped plug block 503 is slidably connected to the guide groove. A third spring 504 is provided in the guide groove, and the sloped plug block 503 is elastically connected to the guide groove through the third spring 504.

[0085] A circular ring 7063 is fixedly installed in the bottom of the circular cavity 7062. The inner diameter of the circular ring 7063 is equal to the diameter of the disc 502, and a groove 7064 for inserting the inclined surface plug 503 is opened on one side of the circular ring 7063.

[0086] The inclined surface plug block 503 adopts a right-angled trapezoidal block structure. One right-angled end of the inclined surface plug block 503 is connected to the third spring 504, and the other end has an inclined surface. At the same time, the inclined surface plug block 503 gradually narrows from top to bottom.

[0087] like Figure 5 As shown, at this time, the telescopic rod 1 is in a retracted state, and by rotating the grip plate 509, the top shaft 508 drives the square sleeve 506 to rotate, and the square sleeve 506 drives the threaded column 103 to rotate, so that the telescopic rod 1 is extended; during the extension of the telescopic rod 1, the rotating column 706 moves downward with the movable column, the movable column pushes the disc 502 downward, the disc 502 pulls the round rod 501 to move, the round rod 501 makes the friction slider 507 slide in the square sleeve 506, and the round rod 501 extends from the square sleeve 506; through the retractable structure composed of the round rod 501 and the square sleeve 506, after the telescopic rod 1 is extended, the disc 502 is still in the state as shown in FIG. Figure 6 Position shown.

[0088] When the telescopic rod 1 is fully extended, the crutch can be used for exercise; after use, the telescopic rod 1 can be retracted to reduce the volume for easy storage.

[0089] When the telescopic rod 1 is retracted, the outer sleeve 101 is held with one hand, and the grip plate 509 is pressed down with the other hand, so that the grip plate 509, the top shaft 508, and the square sleeve 506 move downward together, and the square sleeve 506 slides with the square hole 1033, and the fourth spring 505 is compressed at the same time. The friction slider 507 moves downward with the square sleeve 506 due to the friction between the square sleeve 506 and the friction slider 507 drives the round rod 501 and the disc 502 to move downward together, and the disc 502 is inserted into the inner ring of the ring 7063; and the top side of the inner ring of the ring 7063 squeezes the inclined surface of the inclined surface plug block 503, so that the inclined surface plug block 50 3 is received into the guide groove, and the third spring 504 is compressed. In the process of rotating the grip plate 509, the telescopic rod 1 is contracted, the round rod 501 rotates together, the disc 502 rotates with the round rod 501, and the disc 502 rotates about the ring 7063 until the inclined surface block 503 is aligned with the missing groove 7064. Through the elastic force of the third spring 504, the inclined surface block 503 is inserted into the missing groove 7064, and then the ring 7063 rotates with the disc 502, so that the rotating column 706 rotates, so as to realize the driving transmission part 7, and then the belt body 202 moves, and the cleaning scraper 8 is used for cleaning.

[0090] When the disk 502 is inserted into the inner ring of the ring 7063 , the inclined surface insert block 503 is directly inserted into the notch 7064 , and the disk 502 rotates, and the ring 7063 rotates directly along with the disk 502 .

[0091] During the contraction of the telescopic rod 1, the disc 502 is embedded in the circular ring 7063, the bottom surface of the disc 502 fits with the bottom surface of the circular cavity 7062, the movable rod 102 drives the rotating column 706 to move upward, the rotating column 706 pushes up the disc 502, and pushes the round rod 501 into the square sleeve 506.

[0092] After the telescopic rod 1 is retracted, the grip plate 509 is released, and the square sleeve 506 is reset by the elastic force of the fourth spring 505. The friction between the square sleeve 506 and the friction slider 507, the friction slider 507, the round rod 501 and the disc 502 are reset together, and the disc 502 returns to the position as shown in the figure. Figure 6 Status shown.

[0093] Through the design of the above-mentioned driving mechanism 5, when the telescopic rod 1 is extended, the grip plate 509 is not pressed down, and only the grip plate 509 is rotated, so that the driving mechanism 5 only drives the telescopic rod 1 to extend, but does not drive the transmission part 7, and the belt body 202 does not move with respect to the cleaning scraper 8; at this time, the entire crutch is transformed from a storage state to a use state, the bottom surface of the belt body 202 is clean and does not need to be cleaned, and the belt body 202 does not move with respect to the cleaning scraper 8, thereby avoiding wear between the cleaning scraper 8 and the belt body 202.

[0094] After the entire crutch is used, when the telescopic rod 1 is retracted, the grip plate 509 is pressed down and then rotated to drive the telescopic rod 1 to retract and drive the belt body 202 to move, so that the telescopic rod 1 can be retracted while the belt body 202 is cleaned, which provides convenience for the maintenance of the crutch before storage.

[0095] At the same time, when the telescopic rod 1 is contracted, the soft block 402 will extend out from the protective tube 401, so that the crutch can be hung on the wall a to avoid damaging the wall a.

[0096] The present invention is not limited to the above-mentioned embodiments. Any changes in shape or structure are within the protection scope of the present invention. The protection scope of the present invention is defined by the attached claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications are within the protection scope of the present invention.

Claims

1. A walking stick for elderly people to exercise on, comprising a telescopic rod (1); characterized in that: Also includes: A buffer base (2), the buffer base (2) being mounted on the bottom end of the telescopic rod (1), and having two sets of ground contacting parts arranged inside the buffer base (2); A cleaning scraper (8), wherein the cleaning scraper (8) is arranged on one side of the ground contact portion, and the cleaning scraper (8) abuts against the side surface of the ground contact portion; A driving mechanism (5), the driving mechanism (5) being connected to the telescopic rod (1), and the driving mechanism (5) being further connected to a transmission part (7) for driving the peripheral surface of the ground contacting part to move relative to the cleaning scraper (8); The anti-pressure part (4) is arranged on the side of the telescopic rod (1), and the anti-pressure part (4) is provided with a soft block (402) that can be stored or extended.

2. The rehabilitation crutch for the elderly as claimed in claim 1, characterized in that: The telescopic rod (1) comprises a sleeve (101); a movable rod (102) is slidably mounted in the sleeve (101) along the length direction; the movable rod (102) is threadedly connected to a threaded column (103), and the top of the threaded column (103) is rotatably connected to the sleeve (101); a square hole (1033) is opened at the axis of the threaded column (103), and the driving mechanism (5) is connected to the square hole (1033).

3. The rehabilitation crutch for the elderly as claimed in claim 2, characterized in that: The number of the anti-pressure parts (4) is two, and the two anti-pressure parts (4) are respectively mounted on the top side wall and the bottom side wall of the outer sleeve (101); the anti-pressure part (4) comprises a protective tube (401), the protective tube (401) is fixedly mounted on the side wall of the outer sleeve (101), a guide hole connected to the inner part of the outer sleeve (101) is opened in the middle of the protective tube (401), a push rod (403) is connected with the guide hole in a clearance fit, and one end of the push rod (403) extends into the outer sleeve (101), and the other end of the push rod (403) is fixedly connected with a soft block (402), the soft block (402) is connected with the inner wall of the protective tube (401) in a clearance fit, a second spring (404) is arranged in the protective tube (401), and the soft block (402) and the protective tube (401) are elastically connected via the second spring (404).

4. The rehabilitation crutch for the elderly as claimed in claim 3, characterized in that: One end of the push rod (403) is spherical, and two wedge blocks (6) are fixedly installed on the side wall of the movable rod (102). The two wedge blocks (6) are respectively used to squeeze and push the spherical ends of the push rod (403) of the two anti-pressure parts (4), and the width of the wedge blocks (6) gradually decreases from top to bottom.

5. The rehabilitation crutch for the elderly as claimed in claim 2, characterized in that: The buffer base (2) comprises a shell (201) and a socket (206) fixedly mounted on the top of the shell (201); the socket (206) is slidably connected to a slot (1023) provided at the bottom end of the movable rod (102); a first spring (207) is provided in the slot (1023); the socket (206) and the movable rod (102) are elastically connected via the first spring (207); the ground contact portion is provided in the shell (201), and the bottom of the ground contact portion extends out from the bottom opening of the shell (201).

6. The rehabilitation crutch for the elderly as claimed in claim 5, characterized in that: The ground contacting portion comprises a plurality of carrier rollers (203); the plurality of carrier rollers (203) are rotatably mounted at the four corners of the outer shell (201), and a belt body (202) is wound around the plurality of carrier rollers (203); a plurality of support rollers (204) distributed at equal intervals are rotatably mounted inside the lower part of the outer shell (201), and the support rollers (204) are in contact with the bottom of the belt body (202); an active roller (205) is rotatably mounted inside the outer shell (201), and the active roller (205) is in contact with the top inner wall of the belt body (202).

7. The elderly rehabilitation exercise crutch as claimed in claim 6, characterized in that: The transmission part (7) comprises a connecting shaft (701) and a rotating column (706); the connecting shaft (701) is coaxially fixedly connected to the active roller (205); a first bevel gear (702) is fixedly connected to the connecting shaft (701); the first bevel gear (702) is meshingly connected to the second bevel gear (703); the second bevel gear (703) is fixedly connected to a rotating shaft (704); the rotating shaft (704) is rotatably connected to the socket (206); a square column (705) is fixedly connected to the top of the socket (206); the rotating column (706) is rotatably installed in the movable rod (102); a square groove (7061) is provided at the bottom end of the rotating column (706); the top end of the square column (705) is connected to the square groove (7061) with a clearance fit.

8. The rehabilitation crutch for the elderly as claimed in claim 7, characterized in that: The driving mechanism (5) comprises a square sleeve (506) and a fourth spring (505); the square sleeve (506) is connected to the square hole (1033) with a clearance fit, a friction slider (507) is slidably connected to the square sleeve (506), a round rod (501) is fixed to the bottom of the friction slider (507), the bottom end of the square sleeve (506) is elastically connected to the bottom end of the square hole (1033) through the fourth spring (505), the top end of the square sleeve (506) is fixed to a top shaft (508), and the top end of the top shaft (508) is fixed to a grip plate (509).

9. The rehabilitation crutch for the elderly as claimed in claim 8, characterized in that: A circular hole is provided at the top of the rotating column (706), and a circular cavity (7062) is provided inside the rotating column (706). The circular hole is communicated with the circular cavity (7062), and the circular hole, the circular cavity (7062) and the rotating shaft (1031) are coaxially arranged. The round rod (501) passes through the circular hole, and the round rod (501) extends into the circular cavity (7062). A circular disk (502) is fixedly connected to the bottom end of the round rod (501), and a guide groove is provided on one side of the circular disk (502). A sloped plug block (503) is slidably connected to the guide groove. A third spring (504) is provided in the guide groove, and the sloped plug block (503) is elastically connected to the guide groove through the third spring (504).

10. The rehabilitation crutch for the elderly as claimed in claim 9, characterized in that: A circular ring (7063) is fixedly installed in the bottom of the circular cavity (7062), the inner diameter of the circular ring (7063) is equal to the diameter of the circular disk (502), and a groove (7064) for inserting the inclined surface plug (503) is opened on one side of the circular ring (7063).

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