CN114129968B

CN114129968B - Foldable lower limb rehabilitation instrument convenient to carry

Info

Publication number: CN114129968B
Application number: CN202111459169.XA
Authority: CN
Inventors: 段平秀; 梁明; 吐鲁娜依·万力; 热迪娜·亚生; 再努热·阿不拉汗; 阿依努尔·艾尼
Original assignee: Peoples Hospital of Xinjiang Uygur Autonomous Region
Current assignee: Peoples Hospital of Xinjiang Uygur Autonomous Region
Priority date: 2021-12-02
Filing date: 2021-12-02
Publication date: 2022-07-15
Anticipated expiration: 2041-12-02
Also published as: CN114129968A

Abstract

The invention belongs to the technical field of rehabilitation tools, and particularly relates to a portable foldable lower limb rehabilitation instrument which comprises a first transverse base plate and a second transverse base plate, wherein the first transverse base plate and the second transverse base plate are positioned right above the first transverse base plate, U-shaped hand supports are fixedly arranged on the upper surfaces of the sides, far away from each other, of the first transverse base plates, and anti-skidding handles are fixedly arranged at one ends, far away from the first transverse base plates, of the two U-shaped hand supports. The weight that user's shank bore is the same all the time in whole recovered motion, so can not cause extra impact to shank joint department, in the recovered exercise of effectual help low limbs injured person, accomplish to use the effective protection of shank joint department in the at utmost, reduce the probability that the user received secondary injury, shank joint department can bear more impact forces when the current recovered exercise of effectual solution, influences the recovered process of low limbs injury person and brings the problem of secondary injury even.

Description

Foldable lower limb rehabilitation instrument convenient to carry

Technical Field

The invention belongs to the technical field of rehabilitation tools, and particularly relates to a foldable lower limb rehabilitation instrument convenient to carry.

Background

Rehabilitation training refers to performing physical activities beneficial to recovery or improvement of functions after injuries, general injuries do not need to stop physical exercises completely except for severe injuries requiring rest treatment, proper and scientific physical exercises have positive effects on rapid healing of injuries and promotion of functional recovery, good physical conditions are kept, muscular atrophy and contracture can be prevented through rehabilitation training, the motor capacity of healthy limbs is maintained, and good cardiopulmonary functions are maintained, so that the physical activities can be put into normal physical exercises immediately once the injuries are healed.

The lower limbs damage is a comparatively common damage type, because the shank activity joint position is more and need bear the self weight of upper limbs health, the recovery that the rehabilitation training that can be reasonable to lower limbs damage personnel is better, because the injured position of lower limbs damage personnel is in the human lower half part and need bear the self weight of health, make lower limbs damage personnel leg joint department can bear more impact forces when adopting traditional rehabilitation training, influence the recovered process of lower limbs damage personnel and bring the problem of secondary damage even.

Disclosure of Invention

To solve the problems raised in the background art described above. The invention provides a foldable lower limb rehabilitation instrument convenient to carry, which solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a folded cascade's recovered appearance of low limbs convenient to carry, including two horizontal base plates one and two horizontal base plates two, horizontal base plate two is located directly over horizontal base plate one, the equal fixed mounting of upper surface that one side was kept away from each other to two horizontal base plates one has the hand frame of U type, two U type hand frames keep away from the equal fixed mounting of horizontal base plate one end and have the antiskid handle, two horizontal base plates one keep away from one side each other about both ends all rotate and install two connecting plates one, two connecting plates one keep away from horizontal base plate one end all and rotate with two horizontal base plates and be connected, two connecting plates one are close to hand frame one side of U type and are equipped with connecting plate two, both ends rotate with two connecting plates respectively about connecting plate two and are connected.

Preferably, the surfaces of the first transverse base plate and the second transverse base plate close to one side of the U-shaped hand-held frame are respectively provided with a notch, a U-shaped bolt is inserted into the notches of the first transverse base plate and the second transverse base plate, the right ends of the first transverse base plate and the second transverse base plate are respectively rotatably provided with a base, the upper surface of the base is rotatably provided with a transmission screw, the surface of the transmission screw is in threaded connection with an internal thread sleeve, one side of the internal thread sleeve close to the second transverse base plate is rotatably connected with the second transverse base plate, the surfaces of the two transverse base plates close to one side of each other are respectively and fixedly provided with two mounting seats, one side of the two transverse base plates close to one another is provided with two transmission curved rods, the left ends and the right ends of the two transmission curved rods are respectively and rotatably connected with the four mounting seats on one side of the two transverse base plates close to one another, a first pedal and a second pedal are respectively arranged right above the two transmission curved rods, and two mounting external members are respectively and fixedly arranged on the lower surfaces of the first pedal and the second pedal, the first pedal and the second pedal are rotatably connected with the two transmission curved rods through two mounting external members, the lower surfaces of the mounting external members close to the left ends of the first pedal and the second pedal are rotatably provided with rotating rollers, two mounting base frames are arranged under the two transmission curved rods, the front ends and the rear ends of the two mounting base frames are respectively fixedly connected with the two transverse base plates, a first regulation cylinder and a second regulation cylinder are respectively and fixedly mounted in the two mounting base frames, the right end of the first regulation cylinder is provided with an exhaust pipe, one end of the exhaust pipe close to the first regulation cylinder is fixedly provided with a connecting flange, the exhaust pipe is fixedly connected with the first regulation cylinder through the connecting flange, one end of the exhaust pipe far away from the first regulation cylinder is fixedly provided with a switch valve, a piston is slidably mounted in the first regulation cylinder, one side of the piston close to the exhaust pipe is provided with a spring, the left end and the right end of the spring are respectively fixedly connected with the first regulation cylinder, and one end of the piston far away from the spring is fixedly provided with a connecting rope, the left ends of the two transverse base plates are close to one side of each other and are fixedly provided with side installation seats, the two side installation seats are close to one side of each other and are fixedly connected with a transmission rotating shaft, the circumferential surface of the transmission rotating shaft is rotatably provided with two guide wheels, and one end, far away from the piston, of the connecting rope penetrates through the first regulating cylinder and bypasses the guide wheels and the rotating roller to be fixedly connected.

Preferably, a rotating wrench is fixedly installed at one end, far away from the base, of the transmission screw, and the two transverse base plates are arranged symmetrically front and back along the vertical middle line of the transmission rotating shaft.

Preferably, the first transverse base plate and the second transverse base plate are parallel to each other, and the U-shaped pin and the notch are matched in structural size and position completely and correspondingly.

Preferably, the first pedal and the second pedal are identical in structural size, the interior of the first regulating cylinder is hollow, the first regulating cylinder and the piston are arranged concentrically, and the structural size and the position of the first regulating cylinder are matched with those of the piston in a completely corresponding mode.

Preferably, the first regulating cylinder and the second regulating cylinder have the same structural composition and size, and are connected with the second pedal through the connecting rope.

Preferably, the first regulating cylinder and the second regulating cylinder are positioned in the same horizontal plane, the first regulating cylinder is positioned under the first pedal, and the second regulating cylinder is positioned under the second pedal.

Compared with the prior art, the invention has the beneficial effects that:

1. the portable foldable lower limb rehabilitation instrument comprises a transmission curved rod, a first pedal, a second pedal, a first regulation cylinder and a second regulation cylinder, wherein the device is placed in a horizontal area, the transmission screw can be rotated by rotating a rotary wrench at the top of the transmission screw, the transverse base plate is pulled upwards and unfolded by utilizing the transmission matching between an internal thread sleeve and the transmission screw, after the transverse base plate is unfolded to a specified position, the transverse base plate I and the transverse base plate II can be limited in position by using a U-shaped bolt, at the moment, two feet of a user can be respectively placed on the surfaces of the first pedal and the second pedal, and meanwhile, the two hands of the user are supported by a U-shaped hand-held frame to assist the patient to carry out rehabilitation training activities, the user realizes in-situ rehabilitation exercise by using a motion mode that the left foot and the right foot are alternately stepped downwards, and due to the characteristic of the own curved rod of the transmission curved rod, will be in the same direction as the force and lift up footboard two one time trampling the footboard, both are in the state operation of mutual alternation, exercise in-process user's both feet needn't leave, whole rehabilitation training reciprocating motion, the weight that user's shank bore in whole rehabilitation motion is the same all the time, the event can not lead to the fact extra impact to shank joint department, in the recovered exercise of effectual help low limbs injured person, accomplish to use the effective protection of shank joint department in the at utmost, reduce the probability that the user received secondary injury, shank joint department can bear more impact force when effectual solution had the recovered exercise, influence the recovered process of low limbs injury personnel and bring the problem of secondary injury even.

2. This folded cascade's recovered appearance of low limbs convenient to carry through setting up connecting plate one, connecting plate two, U type bolt and drive screw, can fold to receive and release the use with horizontal base plate two horizontal base plate one, reduces occuping of space volume when not, conveniently carries the use simultaneously to can follow user's selection and place the use, simultaneously when using, can very convenient expand the installation and use.

3. This recovered appearance of folded cascade lower limbs convenient to carry can carry out reciprocal dragging to a piston of a regulation and control section of thick bamboo through connecting the rope when footboard atress removes through setting up a regulation and control section of thick bamboo one, can regulate and control the gas volume on piston right side through adjusting switch valve to be used for the regulation and control to the required power of piston pulling, the person of facilitating the use carries out gradual intensity rehabilitation exercise and uses.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of a first partial perspective structure of the present invention;

FIG. 3 is a schematic view of a second partial perspective structure of the present invention;

FIG. 4 is a partial front view of the present invention;

FIG. 5 is a schematic view of a partial cross-sectional structure of the present invention;

FIG. 6 is a schematic view of the driving structure of the driving crank of the present invention;

FIG. 7 is a schematic view of a portion of the structure of FIG. 6A in accordance with the present invention;

fig. 8 is a schematic view of a portion of the structure shown at B in fig. 6 according to the present invention.

The device comprises a base frame, a transverse base plate I1, a transverse base plate II 2, a 3U-shaped handrail, a connecting plate I4, a connecting plate II 5, a 6U-shaped bolt, a base 7, a transmission screw rod 8, an internal thread sleeve 9, a mounting seat 10, a transmission curved rod 11, a mounting kit 12, a pedal I13, a rotating roller 14, a connecting rope 15, a pedal II 16, a regulating cylinder I17, a regulating cylinder II 18, an exhaust pipe 19, a connecting flange 20, a switch valve 21, a piston 22, a spring 23 and a mounting base frame 24, wherein the base frame is mounted on the base frame; a 25-side mounting base; 26 driving the rotating shaft; 27 guide the wheels.

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. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1-8, the present invention provides the following technical solutions: a foldable lower limb rehabilitation instrument convenient to carry comprises two transverse base plates I1 and two transverse base plates II 2, wherein the transverse base plates II 2 are positioned right above the transverse base plates I1, the transverse base plates I1 and the transverse base plates II 2 are parallel to each other, the two transverse base plates I1 are symmetrically arranged in front and back along a vertical middle line of a transmission rotating shaft 26, U-shaped hand frames 3 are fixedly arranged on the upper surfaces of the sides, far away from each other, of the two transverse base plates I1, anti-skidding grips are fixedly arranged at the ends, far away from the transverse base plates I1, of the two U-shaped hand frames 3, a user can use the anti-skidding grips for rehabilitation exercise by using both hands, the stability of the upper body of the user in the rehabilitation exercise process is improved, two connecting plates I4 are rotatably arranged at the left end and the right end of the sides, far away from the transverse base plates I1, of the two connecting plates I4 are rotatably connected with the transverse base plates II 2, a connecting plate II 5 is arranged on one side of the two connecting plates I4 close to the U-shaped hand rack 3, the left and right ends of the connecting plate II 5 are respectively rotatably connected with the two connecting plates I4, the surfaces of the transverse base plate I1 and the transverse base plate II 2 close to the U-shaped hand rack 3 are respectively provided with a notch, a U-shaped bolt 6 is inserted into the notches of the transverse base plate I1 and the transverse base plate II 2, the U-shaped bolt 6 is completely matched with the notch in structural size and position, the right ends of the two transverse base plates I1 are respectively rotatably provided with a base 7, the upper surface of the base 7 is rotatably provided with a transmission screw 8, the surface of the transmission screw 8 is in threaded connection with an internal thread sleeve 9, one side of the internal thread sleeve 9 close to the transverse base plate II 2 is rotatably connected with the transverse base plate II 2, one end of the transmission screw 8 far away from the base 7 is fixedly provided with a rotating wrench, and the transmission screw 8 can be rotated by rotating the rotating wrench at the top of the transmission screw 8, the transverse base plate 2 is upwards pulled and unfolded by utilizing the transmission matching between the internal thread sleeve 9 and the transmission screw 8, after the transverse base plate 2 is unfolded to a designated position, the transverse base plate 1 and the transverse base plate 2 can be limited in position by using the U-shaped bolt 6, the transverse base plate 1 and the transverse base plate 2 can be folded, unfolded and folded for use, the occupation of space volume is reduced when the transverse base plate 2 is not used, the carrying and the use are convenient, the transverse base plate can be placed and used along with the selection of a user, meanwhile, the transverse base plate 1 and the transverse base plate 2 can be conveniently unfolded, two installation seats 10 are fixedly installed on the surfaces of the sides, close to each other, of the two transverse base plates 2, two transmission curved rods 11 are arranged on the sides, close to each other, the left ends and the right ends of the two transmission curved rods 11 are respectively rotatably connected with the four installation seats 10 on the sides, close to each other, of the two transverse base plates 2, a first pedal 13 and a second pedal 16 are respectively arranged right above the two transmission curved rods 11, the first pedal 13 and the second pedal 16 have the same structural size, two installation external members 12 are fixedly installed on the lower surfaces of the first pedal 13 and the second pedal 16, the first pedal 13 and the second pedal 16 are rotatably connected with the two transmission curved rods 11 through the two installation external members 12, rotating rollers 14 are rotatably installed on the lower surfaces of the installation external members 12 close to the left ends of the first pedal 13 and the second pedal 16, two installation base frames 24 are arranged right below the two transmission curved rods 11, the front ends and the rear ends of the two installation base frames 24 are respectively and fixedly connected with the first transverse base plates 1, a first regulation cylinder 17 and a second regulation cylinder 18 are respectively and fixedly installed inside the two installation base frames 24, the first regulation cylinder 17 and the second regulation cylinder 18 are positioned in the same horizontal plane, the first regulation cylinder 17 is positioned right below the first pedal 13, the second regulation cylinder 18 is positioned right below the second pedal 16, the first regulating cylinder 17 and the second regulating cylinder 18 are identical in structural composition and size, the second regulating cylinder 18 is connected with the second pedal 16 through a connecting rope 15, an exhaust pipe 19 is arranged at the right end of the first regulating cylinder 17, a connecting flange 20 is fixedly arranged at one end, close to the first regulating cylinder 17, of the exhaust pipe 19, the exhaust pipe 19 is fixedly connected with the first regulating cylinder 17 through the connecting flange 20, a switch valve 21 is fixedly arranged at one end, far away from the first regulating cylinder 17, of the exhaust pipe 19, a piston 22 is slidably arranged inside the first regulating cylinder 17, the first regulating cylinder 17 is hollow, the first regulating cylinder 17 and the piston 22 are concentrically arranged, the first regulating cylinder 17 and the piston 22 are completely matched in structural size and position in a corresponding mode, a spring 23 is arranged on one side, close to the exhaust pipe 19, of the piston 22 is fixedly connected with the first regulating cylinder 17 respectively at the left end and the right end of the spring 23, and the piston 22 is fixedly connected with the first regulating cylinder 17, and a connecting rope 15 is fixedly arranged at one end, far away from the spring 23, the left ends of the two transverse base plates I1 are close to each other, side mounting seats 25 are fixedly mounted on one sides of the two side mounting seats 25 close to each other, a transmission rotating shaft 26 is fixedly connected to one side of the two side mounting seats 25 close to each other, two guide wheels 27 are rotatably mounted on the circumferential surface of the transmission rotating shaft 26, one end of a connecting rope 15 far away from a piston 22 penetrates through a first regulating and controlling cylinder 17 and is fixedly connected with a rotating roller 14 by bypassing the guide wheels 27, the first regulating and controlling cylinder 17 can drag the piston 22 in the first regulating and controlling cylinder 17 to and fro through the connecting rope 15 when a first pedal 13 is stressed and moves, the gas volume on the right side of the piston 22 can be regulated and controlled through a regulating and controlling valve 21, so that the force required for pulling the piston 22 is regulated and controlled, the user can use the gradual strength rehabilitation exercise, the user can realize the in-situ rehabilitation exercise through the motion mode that the left foot and the right foot are alternately stepped on, and the characteristic of a bent lever 11, will take the advantage of the situation and lift up footboard two 16 when trampling footboard 13, both are in the state operation of alternant each other, exercise in-process user's both feet needn't leave, whole rehabilitation training reciprocating motion, the weight that user's shank bore in whole rehabilitation motion is the same all the time, the event can not lead to the fact extra impact to shank joint department, in the recovered exercise of effectual help low limbs injured person, accomplish to use the effective protection of shank joint department in the at utmost, reduce the probability that the user received secondary injury, shank joint department can bear more when the current recovered exercise of effectual solution, the problem of secondary injury is brought even to the impact force process that influences low limbs injury personnel.

The working principle and the using process of the invention are as follows: when the device is used, firstly, a horizontal plane area is selected, the device is placed in the horizontal area, then the transmission screw rod 8 can be rotated by rotating a rotating wrench at the top of the transmission screw rod 8, the transverse base plate 2 is upwards pulled and unfolded by utilizing the transmission matching between the internal thread sleeve 9 and the transmission screw rod 8, after the transverse base plate 2 is unfolded to a specified position, the transverse base plate 1 and the transverse base plate 2 can be limited in position by using the U-shaped bolt 6, at the moment, a user can respectively place two feet on the surfaces of the pedal I13 and the pedal II 16, simultaneously the user supports the two hands by the U-shaped hand rack 3 to assist the patient to carry out rehabilitation training activities, the user realizes in-situ rehabilitation exercise by a motion mode that the left foot and the right foot are alternately stepped down, and due to the characteristic of the transmission curved rod 11, the pedal II 16 can be lifted up along with the trend when the pedal I13 is stepped down, both are in the state operation of alternateing each other, the both feet of exercise in-process user needn't leave, whole rehabilitation training reciprocating motion, the weight that user's shank bore is the same all the time in whole rehabilitation motion, the event can not cause extra impact to shank joint department, when effectual help low limbs injured person rehabilitation exercise, accomplish effective protection to shank joint department and use in the at utmost, reduce the probability that the user received secondary injury, shank joint department can bear more impact forces when effectual solution had the rehabilitation exercise, influence the recovered process of low limbs injury personnel and bring secondary injury's problem even.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a recovered appearance of folded cascade's lower limbs convenient to carry, includes two horizontal base plates one (1) and two horizontal base plates two (2), its characterized in that: the transverse base plate II (2) is located right above the transverse base plate I (1), U-shaped handrails (3) are fixedly mounted on the upper surfaces of the two transverse base plate I (1) far away from one side, anti-skidding grips are fixedly mounted at the ends of the two U-shaped handrails (3) far away from the transverse base plate I (1), two connecting plates I (4) are rotatably mounted at the left end and the right end of the two transverse base plate I (1) far away from one side, one ends of the two connecting plates I (4) far away from the transverse base plate I (1) are rotatably connected with the transverse base plate II (2), a connecting plate II (5) is arranged at one side of the two connecting plates I (4) close to the U-shaped handrails (3), and the left end and the right end of the connecting plate II (5) are rotatably connected with the two connecting plates I (4) respectively;

the surface of one side, close to the U-shaped hand support (3), of each of the first transverse base plate (1) and the second transverse base plate (2) is provided with a notch, a U-shaped bolt (6) is inserted into the notches of the first transverse base plate (1) and the second transverse base plate (2), the right ends of the first transverse base plates (1) are rotatably provided with bases (7), the upper surface of each base (7) is rotatably provided with a transmission screw (8), the surface of the transmission screw (8) is in threaded connection with an internal thread sleeve (9), one side, close to the second transverse base plate (2), of the internal thread sleeve (9) is rotatably connected with the second transverse base plate (2), the surface of one side, close to the second transverse base plates (2), of the two transverse base plates (2) is fixedly provided with two mounting seats (10), one side, close to the second transverse base plates (2) is provided with two transmission curved rods (11), the left end and the right end of each transmission curved rod (11) are rotatably connected with four mounting seats (10) on one side, close to the second transverse base plates (2), respectively, a first pedal (13) and a second pedal (16) are respectively arranged right above the two transmission curved rods (11), two installation external parts (12) are respectively fixedly installed on the lower surfaces of the first pedal (13) and the second pedal (16), the first pedal (13) and the second pedal (16) are respectively rotatably connected with the two transmission curved rods (11) through the two installation external parts (12), rotating rollers (14) are respectively rotatably installed on the lower surfaces of the installation external parts (12) close to the left ends of the first pedal (13) and the second pedal (16), two installation base frames (24) are respectively arranged right below the two transmission curved rods (11), the front end and the rear end of each of the two base frame installation base frames (24) are respectively and fixedly connected with the first transverse base plates (1), a first regulation cylinder (17) and a second regulation cylinder (18) are respectively and fixedly installed in the two installation base frames (24), an exhaust pipe (19) is arranged at the right end of the first regulation cylinder (17), a connecting flange (20) is fixedly installed at one end, close to a first regulation cylinder (17), of an exhaust pipe (19), the exhaust pipe (19) is fixedly connected with the first regulation cylinder (17) through the connecting flange (20), a switch valve (21) is fixedly installed at one end, far away from the first regulation cylinder (17), of the exhaust pipe (19), a piston (22) is installed inside the first regulation cylinder (17) in a sliding mode, a spring (23) is arranged on one side, close to the exhaust pipe (19), of the piston (22), the left end and the right end of the spring (23) are respectively fixedly connected with the first regulation cylinder (17) and the piston (22), one end, far away from the spring (23), of the piston (22) is fixedly installed with a connecting rope (15), side installation seats (25) are fixedly installed on one side, close to one side, of the left ends of two transverse base plates (1), a transmission rotating shaft (26) is fixedly connected with one side, and two guide wheels (27) are installed on the circumferential surface of the transmission rotating shaft (26), one end of the connecting rope (15) far away from the piston (22) penetrates through the first regulating cylinder (17) and bypasses the guide wheel (27) to be fixedly connected with the rotating roller (14).

2. The foldable lower limb rehabilitation apparatus convenient to carry as claimed in claim 1, wherein: one end, far away from the base (7), of the transmission screw rod (8) is fixedly provided with a rotary wrench, and the two transverse base plates (1) are symmetrically arranged front and back along the vertical middle line of the transmission rotating shaft (26).

3. The foldable lower limb rehabilitation apparatus convenient to carry as claimed in claim 1, wherein: the transverse base plate I (1) and the transverse base plate II (2) are parallel to each other, and the U-shaped bolt (6) is completely matched with the structural size and the position of the notch correspondingly.

4. The foldable lower limb rehabilitation apparatus convenient to carry as claimed in claim 1, wherein: the structure sizes of the first pedal (13) and the second pedal (16) are completely corresponding to each other and the inner part of the first regulating cylinder (17) is in a hollow shape, the first regulating cylinder (17) and the piston (22) are concentrically arranged, and the structure sizes and positions of the first regulating cylinder (17) and the piston (22) are completely matched correspondingly.

5. The foldable lower limb rehabilitation apparatus convenient to carry as claimed in claim 1, wherein: the structure composition and the size of the first regulating cylinder (17) and the second regulating cylinder (18) are completely corresponding and the same, and the second regulating cylinder (18) is connected with the second pedal (16) through a connecting rope (15).

6. The foldable lower limb rehabilitation apparatus convenient to carry as claimed in claim 1, wherein: the first regulation and control cylinder (17) and the second regulation and control cylinder (18) are located in the same horizontal plane, the first regulation and control cylinder (17) is located under the first pedal (13), and the second regulation and control cylinder (18) is located under the second pedal (16).