CN114533490A

CN114533490A - Device is tempered with shank to old branch of academic or vocational study

Info

Publication number: CN114533490A
Application number: CN202210160916.8A
Authority: CN
Inventors: 许静; 张伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-02-22
Filing date: 2022-02-22
Publication date: 2022-05-27

Abstract

The utility model relates to the technical field of leg exercise devices, in particular to a leg exercise device for the elderly, which comprises a cushion and a backrest, wherein supporting legs are fixedly arranged at four corners of the bottom of the cushion, a base is arranged at one side of the bottom end of the cushion, first slide ways are fixedly arranged at two ends of one side of the base, slide seats are arranged in the first slide ways in a sliding mode, and the slide seats are fixedly connected with two supporting legs at the same side. Cushion top one side is provided with the support plate, the support plate slope sets up, the support plate top is equipped with the cell body that two intervals set up, the cushion bottom is provided with the moving mechanism, both ends are connected respectively on support plate and base about the moving mechanism, rotate in step through the friction pulley that drives both sides, the friction pulley drives the clutch blocks of homonymy and removes along the guide bar, thereby the realization uses user's buttock as the fulcrum, and use certain angle tensile user's both legs, carry out the exercise of shank muscle with the auxiliary user.

Description

Device is tempered with shank to old branch of academic or vocational study

Technical Field

The utility model relates to the technical field of medical leg exercise, in particular to a leg exercise device for an elderly patient.

Background

The leg exercise device for the elderly activates muscles near the legs of the elderly through a mechanical mechanism. The leg exercise device for the old branch of academic or vocational study that current publication number is CN201920121808.3 specifically discloses: comprises a beam rod, a horizontal rod, a movable frame, a seat plate, a tension spring, a vertical plate, a support rod and a pushing device; the beam type rod parallel symmetry sets up, and the both ends of the beam type rod that parallel symmetry set up all are connected through the horizon bar, and the inside wall of symmetry beam type rod is opened has the spout, is provided with adjustable shelf and seat on the beam type rod that the symmetry set up, and the adjustable shelf activity sets up in the spout, and the adjustable shelf is connected through the fixed block that sets up on tension spring and the beam type rod. The utility model solves the problems that the body condition of the old cannot be effectively aimed at, the exercise effect is not obvious and the strain is easy to occur, thereby achieving the effects of aiming at, exercising effectively and preventing the strain.

The existing leg exercising device for the geriatrics department is single in force application angle, muscle stretching movement is not performed in one direction in actual exercise, but muscle movement is performed in multiple angles and multiple degrees of freedom, so that the existing leg exercising device for the geriatrics department does not have the function of adjusting the force application angle, and therefore the leg exercising device for the geriatrics department is provided.

Disclosure of Invention

The utility model aims to solve the defect that the leg exercising device for the aged does not have the function of adjusting the force applying angle in the prior art, and provides the leg exercising device for the aged.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a device is tempered with shank to old branch of academic or vocational study, includes cushion and back, the back links firmly in cushion one side, the equal fixed mounting in cushion bottom four corners department of falling has the landing leg, cushion bottom one side is equipped with the base, the equal fixed mounting in base one side both ends has first slide, it is provided with the slide all to slide in the first slide, the slide links firmly with two landing legs of homonymy.

The cushion is characterized in that a support plate is arranged on one side of the top end of the cushion, the support plate is arranged in an inclined mode, two groove bodies arranged at intervals are arranged at the top of the support plate, a movable mechanism is arranged at the bottom end of the cushion, the upper end and the lower end of the movable mechanism are connected to the support plate and the base respectively, and the movable mechanism can drive the support plate to move in an inclined mode.

Preferably, the equal fixed mounting in support plate top both sides has the curb plate, two the cell body is located between two curb plates, the equal fixed mounting in cell body bottom has the bottom plate, two be equipped with the horizontal pole that two intervals set up between the curb plate, the horizontal pole runs through two bottom plates and tip fixed connection respectively on the curb plate of both sides, two be equipped with two-way lead screw between the curb plate, two-way lead screw run through two bottom plates and with two bottom plate threaded connection, two-way lead screw both ends are rotatable the installing respectively on the curb plate of both sides, are located one side rotatable install the carousel on the curb plate, the pivot of carousel run through the curb plate and with two-way lead screw fixed connection.

Preferably, the movable mechanism comprises a bottom plate, the bottom plate is arranged at the bottom end of the carrier plate, bottom rods are fixedly arranged on both sides of the bottom plate, a supporting rod is fixedly arranged at the top of the bottom plate, the upper end of the supporting rod is hinged at the bottom of the support plate, a sliding groove is arranged on the supporting rod, a sliding seat is arranged in the sliding groove in a sliding manner, a second slide way is arranged at the bottom of the carrier plate, a sliding block is arranged in the second slide way in a sliding manner, guide rods penetrate through two ends of the sliding block, two ends of each guide rod are fixedly connected to two sides in the second slide way respectively, a connecting rod is hinged on the sliding seat, the other end of the connecting rod is hinged on the sliding block, a cylinder seat is fixedly arranged at the top of the bottom plate, the hydraulic cylinder is fixedly installed on the cylinder seat, a hinge is installed at the output end of the hydraulic cylinder, the hinge is installed on the connecting rod, and the output end of the hydraulic cylinder is hinged to the connecting rod through the hinge.

Preferably, the movable mechanism further comprises a driving assembly, and the driving assembly is connected to the bottom rod and can drive the bottom rod.

The drive assembly includes the guide bar that two intervals set up, guide bar one end tilt up sets up, the guide bar upper end runs through the sill bar, the equal fixed mounting in sill bar outside department has the clutch blocks, base top fixed mounting has the bracing piece that two intervals set up, the equal rotatable first pivot of installing in bracing piece upper end, first pivot runs through the bracing piece, first pivot top end fixed mounting has the friction pulley, is located the homonymy the friction pulley meshes with the clutch blocks.

Preferably, two install supplementary tension mechanism on the first slide, supplementary tension mechanism is connected with two slides and can drive the slide and remove along first slide.

Preferably, the auxiliary stretching mechanism comprises a pair of lead screws, the pair of lead screws are respectively rotatably arranged in the two first slide ways, the lead screws respectively penetrate through the sliding seats and are in threaded connection with the sliding seats, a middle plate is arranged between the two first sliding ways, the end parts of the middle plates are respectively and fixedly connected on the first slide ways, the middle plates are rotatably provided with second rotating shafts, the second rotating shaft penetrates through the middle plate, a first belt pulley is fixedly arranged at the end part of the second rotating shaft, a connecting shaft is rotatably arranged at the end part of the first slideway, the connecting shaft penetrates through the first slide way and is fixedly connected with the screw rod, the end parts of the connecting shaft are fixedly provided with second belt pulleys, the connecting shaft also comprises belts, the second belt pulleys on two sides are in belt transmission with the first belt pulleys, a motor is fixedly installed in the base, and an output shaft of the motor is fixedly connected with the second rotating shaft.

Preferably, the device further comprises a synchronizing mechanism, wherein the synchronizing mechanism is connected to the second rotating shaft and the first rotating shaft and can be linked with the second rotating shaft and the first rotating shaft.

Preferably, the synchronizing mechanism comprises a first bevel gear, the first bevel gear is fixedly arranged on a second rotating shaft, a plate is fixedly arranged on the base, a third rotating shaft is rotatably arranged on the plate, the lower end of the third rotating shaft penetrates through the plate, a second bevel gear is fixedly arranged at the bottom of the third rotating shaft and is meshed with the first bevel gear, a first chain wheel is fixedly arranged at the top of the third rotating shaft, fourth rotating shafts are respectively arranged at the supporting rods and are rotatably arranged on the base, a universal coupling is arranged at the upper end of the fourth rotating shaft, the upper ends of the universal couplings are respectively connected with the first rotating shaft, the synchronizing mechanism also comprises a fifth rotating shaft and a belt mechanism, the fifth rotating shaft is rotatably arranged on the base, the fifth rotating shaft and the two fourth rotating shafts are driven by the belt mechanism, and a second chain wheel is fixedly arranged at the top of the fifth rotating shaft, and a chain is arranged between the second chain wheel and the first chain wheel, and the second chain wheel and the first chain wheel are driven by the chain.

Preferably, the chain top is provided with the guard plate, guard plate bottom fixed mounting has a plurality of round bars, the round bar lower extreme all links firmly on the base.

The leg exercising device for the old has the advantages that: when taking exercise, the friction pulley synchronous rotation through driving both sides, the friction pulley drives the clutch blocks of homonymy and removes along the guide bar, thereby drive sill bar and bottom plate synchronous movement, the support plate links to each other with the bottom plate, it moves to drive both legs on the support plate to move to one side, thereby realize using user's buttock as the fulcrum, and use certain angle stretching user's both legs, carry out the exercise of shank muscle with the auxiliary user, when needs adjust tensile angle, the tensile exercise of multi-angle has been realized, start hydraulic cylinder and drive the connecting rod and remove, the output of hydraulic cylinder is articulated with the connecting rod, thereby the slider that drives connecting rod one end removes along the second slide, the slide of the connecting rod other end removes along the spout simultaneously, and then realize that the support plate rotates around the branch upper end, consequently, the angle of placing of adjustable cell body, carry out stretching work again after the angle of placing through adjusting both legs.

The motor is started to drive the second rotating shaft to rotate, the second rotating shaft drives the connecting shafts on two sides to synchronously rotate along the same direction with the screw rod through the transmission action of the first belt pulley, the second belt pulley and the belt, the sliding seat can be driven to move to the side far away from the legs along the first sliding way, namely, the cushion can transversely move, meanwhile, the first bevel gear drives the second bevel gear to rotate, so as to drive the third rotating shaft to rotate and the first chain wheel on the upper end to rotate, the fifth rotating shaft can be driven to rotate through the transmission of the chain, the fourth rotating shafts on two sides can be driven to synchronously rotate through the transmission effect of the belt mechanism, the fourth rotating shaft rotates and drives the first rotating shaft to rotate through the universal coupling, the friction wheel at the end part of the first rotating shaft drives the friction block to move along the guide rod, so that the legs stretch to one side and the hip position transversely moves to the opposite direction, thereby exerting force in parallel through the bidirectional stretching and the trunk position, the stress uniformity of the user with the stretching efficiency is improved.

Drawings

Fig. 1 is a first structural schematic diagram of a leg exercise device for the elderly department according to the present invention.

Fig. 2 is a front view of a leg exercising apparatus for geriatric use according to the present invention.

Fig. 3 is a schematic structural diagram of a leg exercise device for the elderly department according to the present invention.

Fig. 4 is an enlarged schematic structural view of an auxiliary stretching mechanism of the leg exercise device for the elderly department according to the present invention.

Fig. 5 is an enlarged view of a portion of a driving assembly of a leg exercising apparatus for geriatric use according to the present invention.

Fig. 6 is an enlarged schematic view of a carrier plate of a leg exercise device for geriatrics according to the present invention.

Fig. 7 is an enlarged schematic view of a movable mechanism of a leg exercising apparatus for geriatric use according to the present invention.

In the figure: the cushion comprises a cushion 1, a backrest 2, legs 3, a base 4, a first slideway 5, a slide carriage 6, a carrier plate 7, a trough body 8, a side plate 101, a bottom block 102, a cross bar 103, a bidirectional screw 104, a rotary table 105, a bottom plate 201, a bottom rod 202, a support rod 203, a sliding chute 204, a slide carriage 205, a second slideway 206, a sliding block 207, a guide rod 208, a connecting rod 209, a cylinder seat 210, a hydraulic cylinder 211, a hinge 212, a guide rod 301, a friction block 302, a support rod 303, a first rotating shaft 304, a friction wheel 305, a screw 401, a middle plate 402, a second rotating shaft 403, a first belt pulley 404, a connecting shaft 405, a second belt pulley 406, a belt 407, a motor 408, a first bevel gear 501, a plate block 502, a third rotating shaft 503, a second bevel gear 504, a first chain wheel 505, a fourth rotating shaft 506, a universal coupling 507, a fifth rotating shaft 508, a belt mechanism 509, a second chain wheel 510, a chain 511, a protection plate 601 and a round rod 602.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example 1:

referring to fig. 1-7, a device is tempered with shank to old branch of academic or vocational study, includes cushion 1 and back 2, and back 2 links firmly in cushion 1 one side, and 1 bottom four corners of cushion department of all fixed mounting has landing leg 3, and 1 bottom one side of cushion is equipped with base 4, and the equal fixed mounting in 4 one side both ends of base has first slide 5, all slides in the first slide 5 and is provided with slide 6, and slide 6 links firmly with two landing legs 3 of homonymy. The user sits on the seat cushion 1 and secures the user's torso by tying the user's waist to the backrest 2 with the outer straps.

One side of the top end of the cushion 1 is provided with a support plate 7, the support plate 7 is arranged in an inclined manner, the top of the support plate 7 is provided with two groove bodies 8 which are arranged at intervals, the bottom end of the cushion 1 is provided with a movable mechanism, the upper end and the lower end of the movable mechanism are respectively connected to the support plate 7 and the base 4, and the movable mechanism can drive the support plate 7 to move obliquely. All fixed mounting in support plate 7 top both sides has curb plate 101, two cell bodies 8 are located between two curb plates 101, the equal fixed mounting in cell body 8 bottom has bottom block 102, be equipped with the horizontal pole 103 that two intervals set up between two curb plates 101, horizontal pole 103 runs through two bottom blocks 102 and tip difference fixed connection is on the curb plate 101 of both sides, be equipped with two-way lead screw 104 between two curb plates 101, two-way lead screw 104 run through two bottom blocks 102 and with two bottom block 102 threaded connection, two-way lead screw 104 both ends are rotatable the installation respectively on the curb plate 101 of both sides, be located rotatable the installation of carousel 105 on the curb plate 101 of one side, the pivot of carousel 105 run through curb plate 101 and with two-way lead screw 104 fixed connection. Two shanks of user are placed respectively inside two cell bodies 8 to with outside bandage with shank and cell body 8 together fixed, later drive two-way lead screw 104 through rotating carousel 105 and rotate, two-way lead screw 104 rotates and cooperates horizontal pole 103 to make two bottom pieces 102 be close to each other or keep away from the motion each other along horizontal pole 103, thereby make the distance between two shanks adjust to suitable distance, with the user that is applicable to different health situation.

The movable mechanism comprises a bottom plate 201, the bottom plate 201 is arranged at the bottom end of the carrier plate 7, bottom rods 202 are fixedly arranged on two sides of the bottom plate 201, a supporting rod 203 is fixedly arranged at the top of the bottom plate 201, the upper end of the supporting rod 203 is hinged to the bottom of the carrier plate 7, a sliding groove 204 is formed in the supporting rod 203, a sliding seat 205 is slidably arranged in the sliding groove 204, a second sliding groove 206 is formed in the bottom of the carrier plate 7, a sliding block 207 is slidably arranged in the second sliding groove 206, guide rods 208 are respectively and fixedly connected to two ends of the guide rods 208 in the second sliding groove 206, a connecting rod 209 is hinged to the sliding seat 205, the other end of the connecting rod 209 is hinged to the sliding block 207, a cylinder seat 210 is fixedly arranged at the top of the bottom plate 201, a hydraulic cylinder 211 is fixedly arranged on the cylinder seat 210, a hinge 212 is arranged at the output end of the hydraulic cylinder 211, the hinge 212 is arranged on the connecting rod 209, and the output end of the hydraulic cylinder 211 is hinged to the connecting rod 209.

The movable mechanism further includes a drive assembly coupled to the bottom bar 202 and configured to drive the bottom bar 202. Drive assembly includes guide bar 301 that two intervals set up, guide bar 301 one end tilt up sets up, bottom bar 202 is run through to guide bar 301 upper end, the equal fixed mounting in bottom bar 202 outside department has clutch blocks 302, base 4 top fixed mounting has the bracing piece 303 that two intervals set up, bracing piece 303 upper end is all rotatable installs first pivot 304, first pivot 304 runs through bracing piece 303, first pivot 304 top portion fixed mounting has friction pulley 305, the friction pulley 305 and the clutch blocks 302 meshing that are located the homonymy.

When in exercise, the friction wheels 305 on the two sides are driven to synchronously rotate, the friction wheels 305 drive the friction blocks 302 on the same side to move along the guide rods 301, thereby driving the bottom rod 202 and the bottom plate 201 to move synchronously, the carrier plate 7 is connected with the bottom plate 201 to drive the two legs on the carrier plate 7 to move obliquely upwards, thereby realizing that the user's legs are stretched at a certain angle by taking the buttocks of the user as a fulcrum to assist the user to exercise the muscles of the legs, when the stretching angle needs to be adjusted, multi-angle stretching exercise is realized, the hydraulic cylinder 211 is started to drive the connecting rod 209 to move, the output end of the hydraulic cylinder 211 is hinged with the connecting rod 209, thereby driving the sliding block 207 at one end of the connecting rod 209 to move along the second sliding way 206, and simultaneously the sliding seat 205 at the other end of the connecting rod 209 moves along the sliding groove 204, and further the support plate 7 rotates around the upper end of the support rod 203, so that the placing angle of the groove body 8 can be adjusted, and the stretching work is carried out after the placing angles of the two legs are adjusted.

Example 2:

referring to fig. 1 to 7, as another preferred embodiment of the present invention, it is different from embodiment 1 in that an auxiliary stretching mechanism is installed on two first runners 5, and the auxiliary stretching mechanism is connected to two slides 6 and can drive the slides 6 to move along the first runners 5. The auxiliary stretching mechanism comprises a pair of lead screws 401, the pair of lead screws 401 are respectively rotatably installed inside two first slide ways 5, the lead screws 401 respectively penetrate through the slide bases 6 and are in threaded connection with the slide bases 6, a middle plate 402 is arranged between the two first slide ways 5, the end parts of the middle plate 402 are respectively and fixedly connected to the first slide ways 5, a second rotating shaft 403 is rotatably installed on the middle plate 402, the second rotating shaft 403 penetrates through the middle plate 402, first belt pulleys 404 are fixedly installed at the end parts of the second rotating shaft 403, connecting shafts 405 are rotatably installed at the end parts of the first slide ways 5, the connecting shafts 405 penetrate through the first slide ways 5 and are fixedly connected with the lead screws 401, second belt pulleys 406 are fixedly installed at the end parts of the connecting shafts 405, belts 407 are further included, the second belt pulleys 406 on two sides are driven by the belts 407 between the first belt pulleys 404, a motor 408 is fixedly installed in the base 4, and output shafts of the motor 408 are fixedly connected with the second rotating shafts 403.

The device further comprises a synchronization mechanism which is connected to the second rotating shaft 403 and the first rotating shaft 304 and can link the second rotating shaft 403 and the first rotating shaft 304.

The synchronizing mechanism comprises a first bevel gear 501, the first bevel gear 501 is fixedly arranged on a second rotating shaft 403, a plate block 502 is fixedly arranged on a base 4, a third rotating shaft 503 is rotatably arranged on the plate block 502, the lower end of the third rotating shaft 503 penetrates through the plate block 502, a second bevel gear 504 is fixedly arranged at the bottom of the third rotating shaft 503, the second bevel gear 504 is meshed with the first bevel gear 501, a first chain wheel 505 is fixedly arranged at the top of the third rotating shaft 503, fourth rotating shafts 506 are arranged at supporting rods 303, the fourth rotating shafts 506 are rotatably arranged on the base 4, universal couplings 507 are arranged at the upper ends of the fourth rotating shafts 506, the upper ends of the universal couplings 507 are respectively connected with the first rotating shaft 304, the synchronizing mechanism also comprises a fifth rotating shaft 508 and a belt mechanism 509, the fifth rotating shaft 508 is rotatably arranged on the base 4, the fifth rotating shaft 508 and the two fourth rotating shafts 506 are driven by the belt mechanism 509, a second chain wheel 510 is fixedly arranged at the top of the fifth rotating shaft 508, a chain 511 is arranged between the second chain wheel 510 and the first chain wheel 505, and the second chain wheel 510 and the first chain wheel 505 are driven by the chain 511.

The top end of the chain 511 is provided with a protection plate 601, the bottom of the protection plate 601 is fixedly provided with a plurality of round rods 602, and the lower ends of the round rods 602 are fixedly connected to the base 4.

The efficiency of uni-directional stretching is limited due to the consideration that the device only applies a stretching force at one end of the user's legs when exercising, and due to the fact that forces are applied only at the legs, uneven forces are easily caused at the torso. During exercise, the starting motor 408 drives the second rotating shaft 403 to rotate, the second rotating shaft 403 drives the connecting shafts 405 on two sides to synchronously rotate along the same direction as the lead screw 401 through the transmission action of the first belt pulley 404, the second belt pulley 406 and the belt 407, so as to drive the sliding seat 6 to move towards the side far away from the legs along the first slideway 5, so as to realize the transverse movement of the cushion 1, meanwhile, the first bevel gear 501 drives the second bevel gear 504 to rotate, so as to drive the third rotating shaft 503 to rotate and the first chain wheel 505 at the upper end to rotate, through the transmission of the chain 511, the fifth rotating shaft 508 can be driven to rotate, through the transmission effect of the belt mechanism 509, the fourth rotating shafts 506 on two sides can be driven to synchronously rotate, the fourth rotating shaft 506 rotates and drives the first rotating shaft 304 to rotate through the universal coupling 507, the friction wheel 305 at the end of the first rotating shaft 304 drives the friction block 302 to move along the guide rod 301, so as to realize the stretching of the legs towards one side, the hip position moves transversely in the opposite direction, so that the stress uniformity of the user with the stretching efficiency is improved by the bidirectional stretching and the parallel force application at the trunk.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A leg exercise device for the geriatrics department comprises a cushion (1) and a backrest (2), wherein the backrest (2) is fixedly connected to one side of the cushion (1), and supporting legs (3) are fixedly mounted at four corners of the bottom of the cushion (1), and is characterized in that a base (4) is arranged at one side of the bottom end of the cushion (1), first slide ways (5) are fixedly mounted at two ends of one side of the base (4), slide seats (6) are slidably arranged in the first slide ways (5), and the slide seats (6) are fixedly connected with the two supporting legs (3) at the same side;

cushion (1) top one side is provided with support plate (7), support plate (7) slope sets up, support plate (7) top is equipped with two cell bodies (8) that the interval set up, cushion (1) bottom is provided with the moving mechanism, both ends are connected respectively on support plate (7) and base (4) about the moving mechanism, the moving mechanism can drive support plate (7) slant removal.

2. The leg exercising device for the elderly as claimed in claim 1, wherein side plates (101) are fixedly mounted on both sides of the top of the carrier plate (7), the two trough bodies (8) are positioned between the two side plates (101), bottom blocks (102) are fixedly mounted on the bottoms of the trough bodies (8), two cross rods (103) arranged at intervals are arranged between the two side plates (101), the cross rods (103) penetrate through the two bottom blocks (102) and are fixedly connected to the side plates (101) on both sides respectively at the end portions, a bidirectional screw rod (104) is arranged between the two side plates (101), the bidirectional screw rod (104) penetrates through the two bottom blocks (102) and is in threaded connection with the two bottom blocks (102), both ends of the bidirectional screw rod (104) are rotatably mounted on the side plates (101) on both sides respectively, a rotary table (105) is rotatably mounted on the side plate (101) on one side, and a rotating shaft of the rotating disc (105) penetrates through the side plate (101) and is fixedly connected with the bidirectional screw rod (104).

3. The leg exercising device for the elderly as claimed in claim 1, wherein the moving mechanism comprises a bottom plate (201), the bottom plate (201) is arranged at the bottom end of the carrier plate (7), bottom rods (202) are fixedly arranged on both sides of the bottom plate (201), a supporting rod (203) is fixedly arranged at the top of the bottom plate (201), the upper end of the supporting rod (203) is hinged at the bottom of the carrier plate (7), a sliding groove (204) is formed in the supporting rod (203), a sliding seat (205) is slidably arranged in the sliding groove (204), a second sliding rail (206) is formed in the bottom of the carrier plate (7), a sliding block (207) is slidably arranged in the second sliding rail (206), guide rods (208) are respectively and fixedly connected to both sides of the second sliding rail (206) at both ends of the guide rods (208), a connecting rod (209) is hinged to the sliding seat (205), the utility model discloses a hydraulic cylinder, including bottom plate (201), connecting rod (209), bottom plate (201), hinge (212), connecting rod (209) other end articulates on slider (207), bottom plate (201) top fixed mounting has jar seat (210), fixed mounting has pneumatic cylinder (211) on jar seat (210), hinge (212) are installed to the output of pneumatic cylinder (211), install on connecting rod (209) hinge (212), it is articulated through hinge (212) between the output of pneumatic cylinder (211) and connecting rod (209).

4. The leg exercising device for old people as claimed in claim 3, wherein the moving mechanism further comprises a driving assembly connected to the bottom bar (202) and driving the bottom bar (202);

drive assembly includes guide bar (301) that two intervals set up, guide bar (301) one end tilt up sets up, guide bar (301) upper end runs through sill bar (202), the equal fixed mounting in sill bar (202) outside department has clutch blocks (302), base (4) top fixed mounting has bracing piece (303) that two intervals set up, bracing piece (303) upper end all can rotate and install first pivot (304), first pivot (304) run through bracing piece (303), first pivot (304) top portion fixed mounting has friction pulley (305), is located the homonymy friction pulley (305) and clutch blocks (302) meshing.

5. The leg exercising device for the elderly as claimed in claim 1, wherein the two first sliding ways (5) are installed with auxiliary stretching mechanisms, the auxiliary stretching mechanisms are connected with the two sliding seats (6) and can drive the sliding seats (6) to move along the first sliding ways (5), the auxiliary stretching mechanisms comprise a pair of lead screws (401), the pair of lead screws (401) are respectively installed inside the two first sliding ways (5) in a rotatable manner, the lead screws (401) respectively penetrate through the sliding seats (6) and are in threaded connection with the sliding seats (6), a middle plate (402) is arranged between the two first sliding ways (5), the ends of the middle plate (402) are respectively connected to the first sliding ways (5), a second rotating shaft (403) is installed on the middle plate (402) in a rotatable manner, the second rotating shaft (403) penetrates through the middle plate (402), a first belt pulley (404) is fixedly installed at the end of the second rotating shaft (403), first slide (5) tip all can rotate installs connecting axle (405), connecting axle (405) run through first slide (5) and link firmly with lead screw (401), the equal fixed mounting of connecting axle (405) tip has second belt pulley (406), still includes belt (407), both sides through belt (407) transmission between second belt pulley (406) and first belt pulley (404), fixed mounting has motor (408) in base (4), the output shaft and second pivot (403) fixed connection of motor (408).

6. The leg exercising device for the aged as claimed in claim 5, further comprising a synchronizing mechanism connected to the second rotating shaft (403) and the first rotating shaft (304) and interlocking the second rotating shaft (403) and the first rotating shaft (304).

7. The leg exercising device for the elderly as claimed in claim 6, wherein the synchronizing mechanism comprises a first bevel gear (501), the first bevel gear (501) is fixedly installed on a second rotating shaft (403), the base (4) is fixedly installed with a plate (502), the plate (502) is rotatably installed with a third rotating shaft (503), the lower end of the third rotating shaft (503) penetrates through the plate (502), the bottom of the third rotating shaft (503) is fixedly installed with a second bevel gear (504), the second bevel gear (504) is engaged with the first bevel gear (501), the top of the third rotating shaft (503) is fixedly installed with a first chain wheel (505), the support rods (303) are provided with a fourth rotating shaft (506), the fourth rotating shaft (506) is rotatably installed on the base (4), and the upper end of the fourth rotating shaft (506) is installed with a universal coupling (507), universal joint (507) upper end is connected with first pivot (304) respectively, still includes fifth pivot (508) and belt mechanism (509), rotatable the installing on base (4) of fifth pivot (508), through belt mechanism (509) transmission between fifth pivot (508) and two fourth pivots (506), fifth pivot (508) top fixed mounting has second sprocket (510).

8. The leg exercising device for the aged as claimed in claim 7, wherein a chain (511) is installed between the second sprocket (510) and the first sprocket (505), and the second sprocket (510) and the first sprocket (505) are driven by the chain (511).

9. The leg exercising device for the elderly as claimed in claim 8, wherein a protection plate (601) is disposed at the top end of the chain (511), a plurality of round rods (602) are fixedly mounted at the bottom of the protection plate (601), and the lower ends of the round rods (602) are fixedly connected to the base (4).