A rehabilitation bicycle

Abstract

The present application discloses a rehabilitation bicycle, which relates to the technical field of rehabilitation equipment. A rehabilitation bicycle includes a mounting shell, a rotating mechanism is arranged inside the mounting shell, the rotating mechanism is used to provide rotation resistance, a pedal mechanism is arranged on the rotating mechanism, the pedal mechanism helps the user to step on it to drive the rotating mechanism to work; the pedal mechanism includes a first pedal assembly and a second pedal assembly, the first pedal assembly is movably arranged at one end of the rotating mechanism, the second pedal assembly is movably arranged at the other end of the rotating mechanism, and the first pedal assembly and the second pedal assembly can be adjusted to be close to each other; the first pedal assembly has a locking hole, and the second pedal assembly has a locking column, the locking column is used to be inserted into the locking hole so that the first pedal assembly and the second pedal assembly are connected through the locking column. The present application can be easily transferred to the place where it needs to be used.

Description

Technical Field

[0001] The present application relates to the technical field of rehabilitation equipment, and in particular to a rehabilitation bicycle. Background Art

[0002] In modern society, there are some disabled people whose lower limbs are inconvenient to move due to diseases or accidents. After their initial physical functions have recovered, they usually need to actively perform limb rehabilitation exercises to return to the same level of movement as ordinary people. In order to restore the lower limb strength of the disabled people, they are usually asked to use rehabilitation bicycles to perform lower limb exercises. In addition, in order to restore the upper limb strength of the disabled people, they are usually required to do some upper limb exercises while using rehabilitation bicycles.

[0003] At present, the relevant technology discloses a rehabilitation bicycle, which includes a support for increasing stability, on which a bicycle body is installed. The bicycle body includes a weighted flywheel for increasing resistance. When in use, the patient needs to sit on the bicycle body and then pedal to drive the weighted flywheel to rotate to exercise the lower limbs.

[0004] With respect to the above-mentioned related solutions, the inventors believe that the following defects exist: the above-mentioned rehabilitation bicycles are mainly capable of lower limb training, and are difficult to provide support for upper limb training for the disabled, thereby making it inconvenient for the disabled to perform combined upper and lower limb training. Summary of the invention

[0005] In order to facilitate patients to perform combined upper and lower limb training, the present application provides a rehabilitation bicycle.

[0006] The present application provides a rehabilitation bicycle adopting the following technical solution:

[0007] A rehabilitation bicycle comprising

[0008] An installation shell, wherein the installation shell is provided with a first installation hole and a second installation hole opposite to each other;

[0009] A rotating mechanism, the rotating mechanism is arranged in the mounting shell, the rotating mechanism is used to provide a rotation resistance, the rotating mechanism has a first transmission part, the first transmission part is arranged in the first mounting hole and extends outward, and the rotating mechanism also has a second transmission part, the second transmission part is arranged in the second mounting hole and extends outward;

[0010] A pedal mechanism, the pedal mechanism comprising a first pedal assembly and a second pedal assembly, the first pedal assembly being arranged on the first transmission part, the second pedal assembly being arranged on the second transmission part, the first pedal assembly and the second pedal assembly both assisting a user to step on so as to drive the rotating mechanism to work;

[0011] The first treadle assembly and the second treadle assembly are both movable, and the first treadle assembly and the second treadle assembly can be adjusted to be close to each other; the first treadle assembly has a locking column, and the second treadle assembly has a locking hole, and the locking column is used to be inserted into the locking hole so that the first treadle assembly and the second treadle assembly are connected through the locking column;

[0012] The first transmission part is also provided with a first locking assembly for locking the first treading assembly, and the second transmission part is also provided with a second locking assembly for locking the second treading assembly.

[0013] By adopting the above technical scheme, on the one hand, the user can drive the rotating mechanism with resistance by stepping on the first pedal assembly and the second pedal assembly with the soles of the feet, so as to achieve the purpose of lower limb exercise. On the other hand, the first pedal assembly and the second pedal assembly can be adjusted to be close to each other, and then the first pedal assembly can be locked with the first locking assembly and the second pedal assembly can be locked with the second locking assembly, and the locking column can be inserted into the locking hole. At this time, the first pedal assembly is connected to the second pedal assembly through the clamping of the locking column. At this time, the patient can grab the first pedal assembly or the second pedal assembly with his hands to lift the present application for upper limb training.

[0014] Preferably, the first pedal assembly and the second pedal assembly have the same structure; the first pedal assembly includes a connecting column, a connecting hole is opened on the first transmission part, the connecting column is inserted into the connecting hole and can rotate in the connecting hole, and the connecting column is rotatably connected to a pedal column at one end away from the first transmission part, and the pedal column is used for the user to step on and apply force; the first locking assembly is used to lock the connecting column.

[0015] By adopting the above technical solution, when upper limb training is required, by rotating the connecting column on the first pedal assembly and the second pedal assembly, the pedal columns on the first pedal assembly and the second pedal assembly can be brought closer to each other. At this time, the locking column can be inserted into the locking hole, thereby facilitating the first pedal assembly to be connected to the second pedal assembly through the clamping of the locking column.

[0016] Preferably, the first locking assembly and the second locking assembly have the same structure; the first locking assembly includes a locking ring, which is arranged on the first transmission part, and one end of the connecting column away from the pedal column is inserted into the locking ring, and a through locking opening is opened on the side wall of the locking ring, and a locking column is inserted into the locking opening, and the locking column and the locking opening are threadedly connected, and the locking column is used to abut against the connecting column to lock the connecting column.

[0017] By adopting the above technical solution, the locking column can be twisted to make the locking column and the connecting column abut against each other, so that the locking column is locked.

[0018] Preferably, the pedal column is detachably provided with a strap, the strap comprising a wearing portion and a tightening portion, the wearing portion is detachably provided on the pedal column, the wearing portion has a wearing opening, the wearing opening is used for the user to wear the pedal, the tightening portion is provided on the wearing portion and is used to confine the sole of the foot within the wearing opening.

[0019] By adopting the above technical solution, the user can put the sole of the foot into the wearing opening. At this time, the tightening part can be adjusted to restrict the sole of the foot in the wearing opening. This structure can ensure that the sole of the foot and the pedal column are difficult to separate when the user uses the present application, thereby ensuring the safety when using the present application.

[0020] Preferably, a receiving hole is formed at one end of the pedal column away from the connecting column, and the lock column is arranged in the receiving hole, and the lock column can move back and forth in the receiving hole; a locking pin is provided on the lock column, and a movable groove for the locking pin to move is provided on the pedal column, and the locking pin extends outward through the movable groove.

[0021] By adopting the above technical solution, the locking pin can be moved to drive the lock column to move and insert it into the lock hole. This design can facilitate the pedal column on the first pedal component to be connected with the pedal column on the second pedal component through the clamping of the lock column.

[0022] Preferably, a spring is provided between the lock column and the accommodating hole, and the spring is used to reset the lock column after movement; a locking slot is provided on the side wall of the movable groove, and the locking slot is used for the locking pin to be engaged after movement.

[0023] By adopting the above technical solution, moving the locking pin can drive the lock column to move, and the movement of the lock column will cause the spring to be stretched. At this time, the locking pin can be locked in the locking slot to ensure that the locking pin and the locking slot are against each other, so that the lock column will not be reset when inserted into the lock hole.

[0024] Preferably, the rotating mechanism includes a rotating wheel, the first transmission part is arranged at one end of the rotating wheel, the second transmission part is arranged at the other end of the rotating wheel, and the rotating wheel is rotatably arranged on the mounting shell through the cooperation between the first transmission part and the first mounting hole and the cooperation between the second transmission part and the second mounting hole; a cavity is provided in the rotating wheel, and a counterweight wheel is provided in the cavity.

[0025] By adopting the above technical solution, when the rotating wheel rotates, the counterweight wheel will also be driven to rotate centrifugally inside the rotating wheel. This design can provide pedaling resistance to the user, thereby achieving the purpose of lower limb exercise.

[0026] Preferably, an annular mounting area is reserved between the rotating wheel and the counterweight wheel, a ratchet is provided on the inner wall surface of the rotating wheel in a circumferential direction, a pawl is rotatably provided on the counterweight wheel, the pawl is located in the annular mounting area, and the ratchet is used to abut against the pawl so that the rotating wheel and the counterweight wheel rotate in the same direction.

[0027] By adopting the above technical solution, when the user steps on the pedal column with the sole of the foot to perform pedaling, the rotating wheel will rotate. At this time, the ratchet can resist the pawl to drive the counterweight wheel to rotate. When the user suddenly stops pedaling while driving the rotating wheel with the sole of the foot, the counterweight wheel will still rotate, but the rotating pawl will make the counterweight wheel idle. The idling design can increase the safety of the use of the present application.

[0028] Preferably, an elastic member is provided on the counterweight wheel, and the elastic member is located between the counterweight wheel and the pawl, and the elastic member is used to make the pawl abut against the ratchet.

[0029] By adopting the above technical solution, the elastic block can ensure that the pawl always contacts the ratchet teeth, thereby ensuring that the rotating wheel can drive the counterweight wheel to rotate.

[0030] Preferably, a plurality of arc-shaped plates are movably provided in the annular installation area along the circumferential direction, and the arc-shaped plates are used to ensure a movable gap between the counterweight wheel and the rotating wheel.

[0031] By adopting the above technical solution, a plurality of arc-shaped plates fill the annular installation area, thereby ensuring that the movable gap always exists, thereby reducing the wear on the ratchet caused by the direct contact between the counterweight wheel and the ratchet to a certain extent.

[0032] In summary, the present invention includes at least one of the following beneficial technical effects:

[0033] 1. On the one hand, the user can drive the rotating mechanism with resistance to work by stepping on the first pedal assembly and the second pedal assembly with the sole of the foot, so as to achieve the purpose of lower limb exercise. On the other hand, the user can adjust the first pedal assembly and the second pedal assembly to be close to each other, and then lock the first pedal assembly with the first locking assembly and the second pedal assembly with the second locking assembly, and insert the locking column into the locking hole. At this time, the first pedal assembly is connected with the second pedal assembly through the clamping of the locking column. At this time, the patient can grab the first pedal assembly or the second pedal assembly with his hand to lift the present invention to perform upper limb exercise;

[0034] 2. When using the present invention, the user can put the sole of the foot into the wearing opening. At this time, the tightening part can be adjusted to restrict the sole of the foot in the wearing opening. This structure can ensure that the sole of the foot and the pedal column are difficult to separate when the user uses the present invention, thereby ensuring the safety of the present invention;

[0035] 3. When the user steps on the pedal column with the sole of the foot to perform pedaling, the rotating wheel will rotate. At this time, the ratchet can resist the pawl to drive the counterweight wheel to rotate. When the user suddenly stops pedaling while driving the rotating wheel with the sole of the foot, the counterweight wheel will still rotate, but the rotating pawl will make the counterweight wheel idle. The idling design can increase the safety of the application. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the overall structure of a rehabilitation bicycle in an embodiment of the present application;

[0037] Figure 2 is a front cross-sectional view of a rehabilitation bicycle in an embodiment of the present application;

[0038] Figure 3 It is a schematic diagram of the overall structure of the present application when used for upper limb training;

[0039] Figure 4 yes Figure 2 A magnified view of part A;

[0040] Figure 5 yes Figure 2 A magnified view of part B;

[0041] Figure 6 It is a structural schematic diagram for reflecting the connection relationship between the first pedal assembly and the second pedal assembly;

[0042] Figure 7 It is a structural schematic diagram for reflecting the connection relationship between the locking pin and the locking slot;

[0043] Figure 8 It is a schematic diagram for showing the structure of the strap;

[0044] Fig. 9 It is a cross-sectional view used to reflect the rotating mechanism;

[0045] Fig.10 It is a cross-sectional view used to reflect the matching relationship between the pawl and the ratchet.

[0046] Markings in the accompanying drawings:

[0047] 1. Install the housing;

[0048] 11. Rotation mechanism;

[0049] 100, first mounting hole; 101, second mounting hole;

[0050] 112, rotating wheel; 1121, cavity; 1122, annular mounting area; 1123, ratchet; 1124, arc plate; 1125, first transmission part; 11251, connecting hole; 1126, second transmission part; 113, counterweight wheel; 1131, ratchet; 1132, elastic member;

[0051] 2. The first pedal assembly;

[0052] 21. Connecting column; 211. Position limiting convex ring; 22. Stepping column; 23. Spring;

[0053] 221, limiting groove; 220, receiving hole; 2201, locking column; 22011, locking pin; 2202, moving groove; 22021, locking slot;

[0054] 3. Second pedal assembly; 31. Lock hole;

[0055] 4. First locking assembly; 41. Locking ring; 42. Locking column; 43. Knob; 410. Locking port;

[0056] 5. strap; 51. wearing part; 52. tightening part. DETAILED DESCRIPTION

[0057] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0058] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0059] The embodiment of the present application discloses a rehabilitation bicycle, which is used to facilitate patients to perform combined training of upper limbs and lower limbs, so as to meet the rehabilitation training needs of patients.

[0060] Reference Figure 1 and Figure 2A rehabilitation bicycle includes a mounting shell 1, the outer shape of the mounting shell 1 is a quadrangular pyramid, and this shape is used to ensure the stability of the mounting shell 1 when the mounting shell 1 is placed on the ground. The left end of the mounting shell 1 is provided with a first mounting hole 100, and the right end of the mounting shell 1 is provided with a second mounting hole 101, and the first mounting hole 100 and the second mounting hole 101 are arranged opposite to each other. A rotating mechanism 11 is arranged in the mounting shell 1, and the rotating mechanism 11 is used to provide a rotating resistance. The left end of the rotating mechanism 11 has a first transmission part 1125, and the first transmission part 1125 is inserted into the first mounting hole 100 and extends outwards. The right end of the rotating mechanism 11 also has a second transmission part 1126, and the second transmission part 1126 is inserted into the second mounting hole 101 and extends outwards. A rehabilitation bicycle also includes a first pedaling assembly 2 and a second pedaling assembly 3. The first pedaling assembly 2 is arranged at the lower end of the first transmission part 1125, and the second pedaling assembly 3 is arranged at the upper end of the second transmission part 1126. The first transmission part 1125 is also provided with a first locking assembly 4 for locking the first pedaling assembly 2, and the second transmission part 1126 is also provided with a second locking assembly for locking the second pedaling assembly 3. The first pedaling assembly 2 and the second pedaling assembly 3 have the same structure but different positions. The different position settings can facilitate the user to use the present application to achieve pedaling movement, thereby achieving the purpose of exercising the lower limbs.

[0061] To use the present application to exercise the lower limbs, the patient needs to step on the first pedal assembly 2 with the left foot and step on the second pedal assembly 3 with the right foot, and then apply force to perform pedaling movements to exercise the lower limbs.

[0062] Reference Figure 1 and Figure 3 , this application can be transferred from Figure 1 Adjust to Figure 3 The first pedal assembly 2 and the second pedal assembly 3 are both movable, and the first pedal assembly 2 and the second pedal assembly 3 can be adjusted to be close to each other.

[0063] Reference Figure 2 The first treading assembly 2 has a locking column 2201 , and the second treading assembly 3 has a locking hole 31 . The locking column 2201 is used to be inserted into the locking hole 31 so that the first treading assembly 2 and the second treading assembly 3 are connected through the locking column 2201 .

[0064] Depend on Figure 1 Adjust to Figure 3 The adjustment process is as follows: first, the first locking assembly 4 needs to be adjusted to release the lock of the first pedal assembly 2, and then the first pedal assembly 2 is disassembled to become Figure 3 As shown, the adjustment method of the second pedal assembly 3 is the same. After the first pedal assembly 2 and the second pedal assembly 3 are adjusted to be close to each other, Figure 3As shown, the first treading assembly 2 and the second treading assembly 3 are fixedly connected to each other by moving the locking column 2201 into the locking hole 31 .

[0065] To use the present application for upper limb exercise, the patient can lift the present application by holding the connection between the first pedal assembly 2 and the second pedal assembly 3 with his hands, and then perform movements such as bent-over rowing or arm curls, so that the patient can perform upper limb training.

[0066] According to the embodiments of the present application, Figure 1 Adjust to Figure 3 The sequence of actions is described in turn:

[0067] Reference Figure 2 and Figure 4 The first locking assembly 4 and the second locking assembly have the same structure. Take the first locking assembly 4 as an example: the first locking assembly 4 includes a locking ring 41, which is fixed on the first transmission part 1125, and one end of the first pedal assembly 2 is inserted into the locking ring 41. A transversely penetrating locking opening 410 is opened on the side wall of the locking ring 41, and a locking column 42 is inserted into the locking opening 410. The locking column 42 and the locking opening 410 are threadedly connected. The locking column 42 is used to abut against the first pedal assembly 2 to lock one end of the first pedal assembly 2. The locking column 42 is provided with a knob 43 for the user to turn the locking column 42.

[0068] To release the first locking assembly 4 from locking the first treading assembly 2, the knob 43 needs to be turned first, and the knob 43 will drive the locking column 42 to move laterally, at which time the locking column 42 will separate from the first treading assembly 2 to release the lock.

[0069] Reference Figure 3 The first treading assembly 2 and the second treading assembly 3 have the same structure. Taking the first treading assembly 2 as an example, the first treading assembly 2 includes a connecting column 21. A connecting hole 11251 is opened on the first transmission part 1125. The connecting column 21 is inserted into the connecting hole 11251 and the connecting column 21 can rotate in the connecting hole 11251. The end of the connecting column 21 away from the first transmission part 1125 is rotatably provided with a treading column 22. Figure 5 A limiting protrusion 211 is provided at the connection between the connecting column 21 and the pedal column 22, and a limiting groove 221 for installing the limiting protrusion 211 is also provided at the connection between the connecting column 21 and the pedal column 22. The limiting protrusion is stuck in the limiting groove 221 to prevent the pedal column 22 from moving laterally, and the pedal column 22 is used for the user to step on and apply force. One end of the connecting column 21 is also inserted into the locking ring 41, and the locking column 42 is used to lock the connecting column 21.

[0070] To change the first pedal component 2 Figure 1 becomes Figure 3The first step is to turn the knob 43 to drive the locking column 42 to move, thereby releasing the lock on the connecting column 21, and then pull the connecting column 21 out of the connecting hole 11251 to remove the first treading assembly 2, and then adjust the first treading assembly 2 to Figure 2 At this time, the connecting column 21 needs to be passed through the connecting hole 11251 and the locking ring 41 in sequence, and finally the knob 43 is turned again to re-lock the first pedal assembly 2. The adjustment method of the second pedal assembly 3 is the same as that of the first pedal assembly 2, so it will not be repeated here.

[0071] Reference Figure 6 and Figure 7 The end of the pedal column 22 close to the second pedal assembly 3 is provided with a receiving hole 220, and the locking column 2201 is arranged in the receiving hole 220. The locking column 2201 can reciprocate in the receiving hole 220; the locking column 2201 is provided with a locking latch 22011, and the pedal column 22 is provided with a moving groove 2202 for the locking latch 22011 to move. The locking latch 22011 passes through the moving groove 2202 and extends to the outside for the user to grab. A spring 23 is provided between the locking column 2201 and the receiving hole 220, and the spring 23 is used to reset the locking column 2201 after moving; the side wall of the moving groove 2202 is provided with a locking latch 22021, and the locking latch 22021 is used for the locking latch 22011 to be engaged after moving.

[0072] In order to make the locking column 2201 complete the fixed connection between the first pedal component 2 and the second pedal component 3, it is first necessary to grasp the locking pin 22011 and move it horizontally to drive the locking column 2201 to move away from the spring 23. At this time, the locking column 2201 can be inserted into the locking hole 31, and then the locking pin 22011 is stuck in the locking slot 22021. Due to the action of the spring 23, the locking pin 22011 will be against the locking slot 22021 to ensure that the locking column 2201 will not reset. At this time, the first pedal component 2 will be inserted into the locking hole 31 through the locking column 2201 to complete the fixed connection with the second pedal component 3.

[0073] Some structures of the embodiments of the present application for increasing the safety of use by patients are as follows:

[0074] Reference Figure 8 A detachable strap 5 is provided on the pedal column 22. The strap 5 is a cloth strap. The strap 5 includes a wearing portion 51 and a tightening portion 52. The wearing portion 51 is detachably mounted on the pedal column 22. The wearing portion 51 has a wearing opening for the user to wear the shoe. The tightening portion 52 is adhered to the wearing portion 51 and is used to restrict the sole of the foot within the wearing opening.

[0075] When using, you first need to separate one end of the tightening part 52 from the wearing part 51, then put the sole of the foot into the wearing opening, and then readjust the tightening part 52 and stick it to the wearing part 51. This structure can ensure that the sole of the user's foot and the pedal column 22 are difficult to separate when using this application, thereby ensuring the safety of the patient when using this application.

[0076] Reference Fig. 9 and Fig.10 The rotating mechanism 11 includes a rotating wheel 112, which is arranged in the mounting housing 1, a first transmission part 1125 is arranged at the left end of the rotating wheel 112, and a second transmission part 1126 is arranged at the right end of the rotating wheel 112. The rotating wheel 112 is rotatably arranged on the mounting housing 1 through the cooperation between the first transmission part 1125 and the first mounting hole 100 and the cooperation between the second transmission part 1126 and the second mounting hole 101; a cavity 1121 is arranged in the rotating wheel 112, and a counterweight wheel 113 is arranged in the cavity 1121; the cavity 1121 includes an annular mounting area 1122, and the annular mounting area 1122 is formed between the inner circumferential wall of the rotating wheel 112 and the counterweight wheel 113 Between the outer circumferential walls, a plurality of ratchet teeth 1123 are provided on the inner circumferential surface of the rotating wheel 112 in the circumferential direction, a plurality of pawls 1131 are rotatably provided on the counterweight wheel 113, the pawls 1131 are located in the annular mounting area 1122, and the ratchet teeth 1123 are used to abut against the pawls 1131 so that the rotating wheel 112 and the counterweight wheel 113 can rotate in the same direction; a plurality of arc plates 1124 are also movably provided in the annular mounting area 1122 in the circumferential direction, and the arc plates 1124 are used to ensure a movable gap between the counterweight wheel 113 and the rotating wheel 112, thereby reducing the wear on the ratchet teeth 1123 caused by direct contact between the counterweight wheel 113 and the ratchet teeth 1123 to a certain extent.

[0077] When the patient performs pedaling exercises with the soles of their feet, the rotating wheel 112 will rotate. At this time, the ratchet 1123 can abut against the pawl 1131 to drive the counterweight wheel 113 to rotate. When the user suddenly stops pedaling while driving the rotating wheel 112 to rotate with the soles of his feet, the counterweight wheel 113 will still rotate. At this time, the rotating pawl 1131 will allow the counterweight wheel 113 to idle, that is, the counterweight wheel 113 cannot drive the rotating wheel 112 to rotate clockwise. The idling design can increase the safety of the present application.

[0078] Reference Fig.10The counterweight wheel 113 is also provided with an elastic member 1132, which can be an elastic sponge or a telescopic spring, and is located between the counterweight wheel 113 and the pawl 1131, and is used to ensure that the pawl 1131 always abuts against the ratchet 1123. In addition, since the pawl 1131 always abuts against the ratchet 1123, when the counterweight wheel 113 is idling, the pawl 1131 will continuously rub against the ratchet 1123, so that the counterweight wheel 113 can be continuously decelerated.

[0079] The implementation principle of a rehabilitation bicycle in the embodiment of the present application is:

[0080] To use the present invention to exercise the lower limbs, the patient needs to first separate one end of the tightening portion 52 from the wearing portion 51, then put the left foot into the wearing opening, and then readjust the tightening portion 52 and stick it to the wearing portion 51 to complete the wearing of the left foot, and then complete the wearing of the right foot in the same way, and then apply force to perform stepping exercises to exercise the lower limbs;

[0081] To use the present application for upper limb exercise, firstly, the knob 43 needs to be turned, and the knob 43 will drive the locking column 42 to move laterally, at which time the locking column 42 will separate from the connecting column 21 to release the lock of the connecting column 21, and then the connecting column 21 is pulled out from the connecting hole 11251 to disassemble the first treading assembly 2, and the position of the first treading assembly 2 is adjusted so that the locking column 2201 is inserted into the locking hole 31, and at this time, the connecting column 21 is passed through the connecting hole 11251 and the locking ring 41 in turn, and the knob 43 is turned to re-tread the first treading assembly 2. The second pedal assembly 3 performs the same operation, and then the locking pin 22011 is held and moved laterally to drive the locking column 2201 to move away from the spring 23. At this time, the locking column 2201 can be inserted into the locking hole 31, and then the locking pin 22011 is stuck in the locking slot 22021. At this time, the first pedal assembly 2 is inserted into the locking hole 31 by the locking column 2201 to complete the fixed connection with the second pedal assembly 3. The patient holds and lifts the first pedal assembly 2 and the second pedal assembly 3 to perform upper limb exercises.

[0082] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A rehabilitation bicycle, characterized in that: include An installation shell (1), wherein the installation shell (1) is provided with a first installation hole (100) and a second installation hole (101) which are opposite to each other; A rotating mechanism (11), the rotating mechanism (11) being arranged in the mounting shell (1), the rotating mechanism (11) being used to provide a rotational resistance, the rotating mechanism (11) having a first transmission part (1125), the first transmission part (1125) being arranged in the first mounting hole (100) and extending outwards, the rotating mechanism (11) also having a second transmission part (1126), the second transmission part (1126) being arranged in the second mounting hole (101) and extending outwards; A pedal mechanism, the pedal mechanism comprising a first pedal assembly (2) and a second pedal assembly (3), the first pedal assembly (2) being arranged on the first transmission part (1125), the second pedal assembly (3) being arranged on the second transmission part (1126), the first pedal assembly (2) and the second pedal assembly (3) both assisting a user to pedal and thereby drive the rotating mechanism (11) to work; The first treading assembly (2) and the second treading assembly (3) are both movably arranged, and the first treading assembly (2) and the second treading assembly (3) can be adjusted to be close to each other; the first treading assembly (2) has a locking column (2201), and the second treading assembly (3) has a locking hole (31), and the locking column (2201) is used to be inserted into the locking hole (31) so that the first treading assembly (2) and the second treading assembly (3) are connected via the locking column (2201); The first transmission part (1125) is also provided with a first locking component (4) for locking the first treading component (2), and the second transmission part (1126) is also provided with a second locking component for locking the second treading component (3); The first pedal assembly (2) and the second pedal assembly (3) have the same structure; the first pedal assembly (2) comprises a connecting column (21); a connecting hole (11251) is formed on the first transmission part (1125); the connecting column (21) is inserted into the connecting hole (11251) and can rotate in the connecting hole (11251); one end of the connecting column (21) away from the first transmission part (1125) is rotatably connected to a pedal column (22); the pedal column (22) is used for a user to step on and apply force; the first locking assembly (4) is used to lock the connecting column (21); The first locking assembly (4) and the second locking assembly have the same structure; the first locking assembly (4) comprises a locking ring (41), the locking ring (41) is arranged on the first transmission part (1125), one end of the connecting column (21) away from the pedal column (22) is inserted into the locking ring (41), a through locking opening (410) is formed on the side wall of the locking ring (41), a locking column (42) is inserted into the locking opening (410), the locking column (42) and the locking opening (410) are threadedly connected, and the locking column (42) is used to abut against the connecting column (21) so as to lock the connecting column (21); A receiving hole (220) is formed at one end of the pedal column (22) away from the connecting column (21), and the locking column (2201) is arranged in the receiving hole (220). The locking column (2201) can move back and forth in the receiving hole (220); a locking pin (22011) is provided on the locking column (2201), and a movable groove (2202) for the locking pin (22011) to move is provided on the pedal column (22), and the locking pin (22011) passes through the movable groove (2202) and extends outward.

2. A rehabilitation bicycle according to claim 1, characterized in that: The pedal column (22) is provided with a detachable strap (5), the strap (5) comprising a wearing portion (51) and a tightening portion (52), the wearing portion (51) being detachably provided on the pedal column (22), the wearing portion (51) having a wearing opening for allowing a user to wear the pedal, and the tightening portion (52) being provided on the wearing portion (51) and being used to restrict the sole of a foot within the wearing opening.

3. A rehabilitation bicycle according to claim 1, characterized in that: A spring (23) is provided between the locking column (2201) and the accommodating hole (220), and the spring (23) is used to reset the locking column (2201) after it moves; a locking card slot (22021) is provided on the side wall of the movable groove (2202), and the locking card slot (22021) is used for the locking card pin (22011) to be engaged after it moves.

4. A rehabilitation bicycle according to claim 1, characterized in that: The rotating mechanism (11) comprises a rotating wheel (112), the first transmission part (1125) being arranged at one end of the rotating wheel (112), the second transmission part (1126) being arranged at the other end of the rotating wheel (112), the rotating wheel (112) being rotatably arranged on the mounting shell (1) through the cooperation between the first transmission part (1125) and the first mounting hole (100) and the cooperation between the second transmission part (1126) and the second mounting hole (101); a cavity (1121) is arranged in the rotating wheel (112), and a counterweight wheel (113) is arranged in the cavity (1121).

5. A rehabilitation bicycle according to claim 4, characterized in that: An annular mounting area (1122) is reserved between the rotating wheel (112) and the counterweight wheel (113); ratchet teeth (1123) are provided on the inner wall surface of the rotating wheel (112) along the circumferential direction; a pawl (1131) is rotatably provided on the counterweight wheel (113); the pawl (1131) is located in the annular mounting area (1122); the ratchet teeth (1123) are used to abut against the pawl (1131) so that the rotating wheel (112) and the counterweight wheel (113) rotate in the same direction.

6. A rehabilitation bicycle according to claim 5, characterized in that: The counterweight wheel (113) is provided with an elastic member (1132), and the elastic member (1132) is located between the counterweight wheel (113) and the ratchet pawl (1131).

7. A rehabilitation bicycle according to claim 5, characterized in that: A plurality of arc-shaped plates (1124) are movably provided in the annular installation area (1122) along the circumferential direction, and the arc-shaped plates (1124) are used to ensure a movable gap between the counterweight wheel (113) and the rotating wheel (112).

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