Leg trainer

Abstract

The utility model relates to a leg training device which comprises a supporting bottom frame, a pedal assembly and a limiting supporting piece, and a supporting base, a first positioning part and a second positioning part are arranged on the supporting bottom frame; each pedal assembly comprises a pedal part, a connecting part and a supporting part; the limiting supporting pieces are arranged below the corresponding pedal assemblies, and the limiting supporting pieces are rotationally connected to the supporting bottom frame; wherein each limiting supporting piece is configured as follows: in a working state, the limiting supporting piece rotates to be in contact connection with the first positioning part, so that the pedal assembly rotates within a preset range; and in a non-working state, the limiting supporting piece rotates upwards to be in contact connection with the second positioning part, so that the pedal assembly is supported. The two pedal assemblies can be simultaneously pedaled outwards or reset and can also be alternatively pedaled outwards, or one pedal assembly can work independently, the exercise modes are diversified and more scientific, the two legs act on the corresponding pedal assemblies respectively, and the problem that the two legs exert force unevenly is solved.

Description

Technical Field

[0001] This utility model belongs to the field of fitness equipment technology, and in particular relates to a leg training device. Background Technology

[0002] As people's fitness concepts continue to develop, fitness equipment is becoming increasingly diverse. Leg training is a regular part of exercise. Strengthening leg muscles can promote the growth of muscles throughout the body, making the body more balanced and attractive, and can also improve athletic performance and reduce the risk of injury. Therefore, leg muscle training is indispensable for physical exercise. Trainees can exercise through squats, deadlifts, leg presses, etc., or use related exercise equipment to strengthen their muscles.

[0003] Most existing leg exercisers have a single pedal that requires both legs to push out and return to the starting position simultaneously. This type of exercise is relatively simple from a training perspective, resulting in uneven force exertion in both legs and an inability to specifically train each leg individually. In addition, the range of motion of the leg exerciser is limited, leading to inadequate leg training and inconvenience for users to adjust it. Summary of the Invention

[0004] The purpose of this invention is to provide a leg trainer to solve the problems of existing leg trainers that only have one pedal, require both legs to exert force simultaneously, may have uneven force exertion from left to right, and have a limited range of exercise stroke.

[0005] To achieve the above-mentioned objectives, the present invention employs the following technical solution:

[0006] This application discloses a leg training device, which includes:

[0007] A support base is provided on which a support seat, a first positioning part and a second positioning part are provided;

[0008] Two sets of foot pedal assemblies, each set of foot pedal assemblies includes a foot pedal part, a connecting part and a support part, the foot pedal part and the support part are respectively located at both ends of the connecting part, and the connecting part is rotatably connected to the support base frame;

[0009] Two sets of limiting support members are disposed below the corresponding foot pedal assembly, and the limiting support members are rotatably connected to the support base frame;

[0010] The limiting support member is configured such that, in the working state, the limiting support member rotates to contact and connect with the first positioning part, so that the foot pedal assembly rotates within a preset range; in the non-working state, the limiting support member rotates upward to contact and connect with the second positioning part, so as to support the foot pedal assembly.

[0011] In some embodiments of the present application, the first positioning part and the support base are respectively arranged at the first end and the second end of the support chassis, and the first positioning part extends upwardly in a direction towards the second end.

[0012] In the working state, the limiting support rotates towards the first end of the support chassis to contact the first positioning part, and is supported on the first positioning part to release the limit of the downward rotation of the pedal assembly.

[0013] In some embodiments of the present application, the limiting support comprises a limiting upright and a limiting branch, the limiting branch is connected to the limiting upright at an angle, the bottom of the limiting upright is rotatably connected to the support chassis, the top of the limiting upright is provided with a first limiting end, and the top of the limiting branch is provided with a second limiting end; in the working state, the limiting support is rotated to contact and connect the limiting upright and the first positioning part; in the non-working state, the limiting support is rotated to contact the second limiting end and the second positioning part, and the support part is supported on the first limiting end.

[0014] The first limiting end provides upward support for the pedal assembly in the non-working state.

[0015] In the non-working state, the limiting support rotates towards the first end of the support chassis to make the second limiting end in an upwardly inclined position, so as to limit the maximum position of the downward rotation of the pedal assembly and avoid the excessive downward rotation angle of the pedal assembly to cause damage to the legs or knees of the exerciser.

[0016] In some embodiments of the present application, the support chassis is further provided with a support upright beam, the support upright beam is rotatably connected with an operation part, and the operation part is connected with the limiting support through a connecting rod assembly to drive the rotation of the limiting support.

[0017] The number of operation parts is two, which are respectively located on both sides of the support base and correspond to the limiting supports one by one, so as to facilitate the user to control the two limiting supports respectively.

[0018] In some embodiments of the present application, the two ends of the operation part are respectively a handle end and a connecting end, the handle end and the connecting end are respectively located on both sides of the support upright beam, and the connecting end is connected with the connecting rod assembly.

[0019] The user holds the handle end to push and pull forward and backward relative to the support upright frame, and drives the limiting support to move through the connecting rod assembly.

[0020] In some embodiments of the present application, the connecting rod assembly comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is connected with the connecting end, the other end of the first connecting rod is hinged with the second connecting rod through an adapter shaft, and the other end of the second connecting rod is connected with the limiting support.

[0021] In some embodiments of the present application, a connecting cross beam is further arranged on the limiting support, an intermediate shaft is connected on the connecting cross beam, and the intermediate shaft is rotatably connected with the second connecting rod.

[0022] The intermediate shaft is fixed below the connecting cross beam through a connecting lug, and the limiting support is rotatably connected with the second connecting rod through the intermediate shaft.

[0023] In some embodiments of the present application, an arc-shaped limiting groove is further formed on the supporting upright beam, one end of the adapter shaft is inserted into the limiting groove, and the adapter shaft is configured to move along the arc-shaped limiting groove.

[0024] In a non-working state, the adapter shaft is located at the rear end of the arc-shaped limiting groove away from the limiting support, before use of the foot pedal assembly, a user holds the handle end to push the operating part towards the limiting support, the operating part drives the adapter shaft to move towards the front end along the arc-shaped limiting groove through the first connecting rod, at the same time, the first connecting rod drives the second connecting rod to move forward, and the second connecting rod further drives the connecting rod cross beam to rotate relative to the supporting base frame, thereby driving the limiting support to rotate forward to contact the first positioning part, the limiting support in this state is in a working state, and the rotation limiting of the foot pedal assembly downward is released.

[0025] In some embodiments of the present application, a buffer pad is arranged on the first positioning part, the first limiting end and / or the second limiting end.

[0026] The buffer pad is beneficial to reduce the vibration transmission between the limiting support and the first positioning part, between the limiting support and the foot pedal assembly, reduce noise, and has a protective effect on user exercise.

[0027] In some embodiments of the present application, the supporting seat comprises a fixed supporting seat and a movable supporting seat, one end of the movable supporting seat close to the fixed supporting seat is hinged on the supporting base frame, a movable upright beam is further arranged on the bottom of the movable supporting seat, a plurality of adjusting holes are formed on the movable upright beam, and a latch is arranged on the supporting base frame and connected into the corresponding adjusting hole to realize the angle adjustment of the movable supporting seat.

[0028] A user sits on the fixed supporting seat, and the angle of the movable supporting seat relative to the fixed supporting seat is adjusted, and the exercise demand of the user sitting or lying at a preset angle can be realized according to different needs of the user, and the comfort is higher.

[0029] Compared with the prior art, the leg training device has the advantages and positive effects that:

[0030] The leg training device has the advantages and positive effects that:

[0031] The two foot pedal assemblies can be simultaneously kicked out or reset, can be alternately kicked out, or one of the foot pedal assemblies can work alone, so that the exercise mode is various and more scientific, and the problem of uneven force exertion of the two legs is avoided.

[0032] Other features and advantages of the present application will become more apparent after reading the specific embodiments of the present application in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0034] Figure 1 is a structure diagram of one embodiment of the leg training device proposed by the present application;

[0035] Figure 2 is a structure diagram of the leg training device when the limiting support and the first positioning part are in contact;

[0036] Figure 3 is a structure diagram of the leg training device when one of the foot pedal assemblies is lowered to the lowest position;

[0037] Figure 4 is a connection diagram of the limiting support and the supporting base;

[0038] Figure 5 is a structure diagram of the foot pedal assembly;

[0039] Figure 6 is a connection diagram of the operating part and the limiting support;

[0040] Figure 7 is a contact diagram of the limiting support and the second positioning part;

[0041] Figure 8 is a structure diagram of the connecting rod assembly;

[0042] Figure 9 is a plan view of the leg trainer in a non-working state;

[0043] Figure 10 is a plan view of the leg trainer in a working state;

[0044] Figure 11 is a connecting diagram of the movable support seat;

[0045] in the drawings,

[0046] 100, support base frame; 101, bottom vertical frame; 102, front support stand; 103, bottom horizontal frame;

[0047] 110, support seat; 111, fixed support seat; 112, movable support seat;

[0048] 120, first positioning part;

[0049] 130, second positioning part;

[0050] 140, support upright beam; 141, arc-shaped limiting groove;

[0051] 150, latch;

[0052] 160, movable upright beam; 161, adjusting hole; 170, telescopic part;

[0053] 200, limiting support part; 210, limiting upright part; 220, first limiting end; 230, limiting branch; 240, connecting horizontal beam; 241, connecting lug;

[0054] 300, foot pedal assembly; 310, foot pedal part; 320, connecting part; 321, upper connecting part; 322, lower connecting part; 330, support part;

[0055] 400, operation part;

[0056] 500, buffer pad;

[0057] 600, connecting rod assembly; 610, intermediate shaft; 620, second connecting rod; 630, first connecting rod; 640, adapter shaft. DETAILED DESCRIPTION

[0058] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0059] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0060] The terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0061] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or direct connection, or indirect connection through intermediate medium. For a person of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0062] In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "above", "upper" and "upper surface" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "under" and "under" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0063] The disclosure below provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and arrangements of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeatedly refer to numbers and / or letters in different examples, and such repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or arrangements discussed.

[0064] Reference Figure 1 The application provides a leg trainer, which comprises a support chassis 100, two groups of foot pedal assemblies 300 and two groups of limiting supports 200, the two groups of foot pedal assemblies 300 are independently connected to the support chassis 100, and the limiting supports 200 correspond to the foot pedal assemblies 300 one by one and are used for limiting and supporting the foot pedal assemblies 300.

[0065] Reference Figures 2-4 The support chassis 100 specifically comprises a bottom horizontal frame 103 and a bottom vertical frame 101, the bottom horizontal frame 103 is used for being supported on the ground, and the bottom vertical frame 101 is vertically arranged on the bottom horizontal frame 103.

[0066] The front end of the bottom vertical frame 101 is provided with a front support stand 102 which is arranged at an angle with the bottom vertical frame 101, the foot pedal assembly 300 is rotatably connected to the front support stand 102, and the support chassis 100 is further provided with a support seat 110, a first positioning portion 120 and a second positioning portion 130, and the support seat 110 is arranged at the rear side of the bottom vertical frame 101.

[0067] The first positioning portion 120 and the second positioning portion 130 are respectively used for supporting and positioning the foot pedal assembly 300 in different states.

[0068] In combination Figure 5 Each group of foot pedal assemblies 300 comprises a foot pedal portion 310, a connecting portion 320 and a supporting portion 330, the foot pedal portion 310 and the supporting portion 330 are respectively located at two ends of the connecting portion 320, and the connecting portion 320 is rotatably connected to the support chassis 100.

[0069] The connecting portion 320 is a connecting beam structure, and a bent portion is formed on the connecting portion 320, and the bent portion is rotatably connected to the front support stand 102.

[0070] The bent portion divides the connecting portion 320 into an upper connecting portion 321 and a lower connecting portion 322, and the upper connecting portion 321 and the lower connecting portion 322 are connected and fixed at an angle.

[0071] The foot pedal portion 310 is arranged on the upper connecting portion 321, and a pedal is formed on the foot pedal portion 310, which is used for facilitating the user to step on.

[0072] The support part 330 is angled and mounted on the lower connecting part 322 to support the foot pedal assembly 300.

[0073] Each foot pedal assembly 300 corresponds to a limiting support 200. The limiting support 200 is located below the corresponding foot pedal assembly 300 and is rotatably connected to the support base 100.

[0074] Among them, each limiting support 200 is configured as follows: (reference) Figure 2 , Figure 3 In the working state, the limit support 200 rotates to contact and connect with the first positioning part 120, so that the foot pedal assembly 300 rotates within a preset range; Reference Figure 1 When not in operation, the limit support 200 rotates upward to contact and connect with the second positioning part 130 to support the foot pedal assembly 300.

[0075] In some embodiments of this application, the first positioning part 120 and the support base 110 are respectively disposed at the first end and the second end of the support base 100, and the first positioning part 120 extends upward at an angle toward the second end.

[0076] In the working state, the limiting support member 200 rotates towards the first end of the support base 100 until it contacts the first positioning part 120. The limiting support member 200 is supported on the first positioning part 120 to release the limiting of the downward rotation of the foot pedal assembly 300.

[0077] For details, please refer to the following: Figure 4 In some embodiments of this application, the limiting support 200 includes a limiting upright portion 210 and a limiting branch portion 230, with the limiting branch portion 230 connected at an angle to the limiting upright portion 210.

[0078] The limiting branch 230 extends in the direction toward the second end, specifically, the limiting branch 230 is perpendicular to the limiting upright 210.

[0079] The bottom of the limiting upright 210 is rotatably connected to the support base 100. The top of the limiting upright 210 is provided with a first limiting end 220, and the top of the limiting support 230 is provided with a second limiting end. In the working state, the limiting support 200 rotates until the limiting upright 210 contacts and connects with the first positioning part 120, thus combining... Figure 7 In the non-tooling state, the limiting support 200 rotates to the second limiting end and contacts the second positioning part 130, and the support part 330 is supported on the first limiting end 220.

[0080] When the first limit end 220 is not in operation, it provides upward support to the foot pedal assembly 300.

[0081] In the non-working state, the limiting support 200 rotates towards the first end where the support base 100 is located, so that the second limiting end is in an upwardly inclined position, thereby limiting the maximum position of the downward rotation of the foot pedal assembly 300, and avoiding that the downward rotation angle of the foot pedal assembly 300 is too large to cause damage to the legs or knees of the exerciser.

[0082] In combination Figure 6 , Figure 8 In some embodiments of the present application, the support base 100 is further provided with a support upright beam 140, the number of the support upright beam 140 is two, and the operation part 400 is rotatably connected to the support upright beam 140. The operation part 400 is connected to the corresponding limiting support 200 through the connecting rod assembly 600, and is used to drive the rotation of the corresponding limiting support 200.

[0083] In other words, the number of the operation part 400 is two, and the operation part 400 is located on both sides of the support seat 110 and corresponds to the limiting support 200 one by one, thereby facilitating the user to control the two limiting supports 200 respectively.

[0084] The operation part 400 is in the shape of a bent pipe, and the specific bending shape is determined according to the actual operation requirement.

[0085] The two ends of the operation part 400 are a handle end and a connecting end respectively, and the handle end and the connecting end are located on both sides of the support upright beam 140 respectively, and the connecting end is connected to the connecting rod assembly 600.

[0086] The handle part specifically extends to both sides of the support seat 110, thereby facilitating the user to sit on the support seat 110 and then operate the handle part at the corresponding position by two hands respectively, and further adjusting the limiting support 200.

[0087] Specifically, the user holds the handle end and pushes or pulls it forward and backward relative to the support upright frame, thereby driving the limiting support 200 to move through the connecting rod assembly 600.

[0088] The connecting rod assembly 600 includes a first connecting rod 630 and a second connecting rod 620, one end of the first connecting rod 630 is connected to the connecting end, the other end of the first connecting rod 630 is hinged to the second connecting rod 620 through an adapter shaft 640, and the other end of the second connecting rod 620 is connected to the limiting support 200.

[0089] In some embodiments of the present application, the limiting support 200 is further provided with a connecting cross beam 240, the connecting cross beam 240 is connected with an intermediate shaft 610, and the intermediate shaft 610 is rotatably connected to the second connecting rod 620.

[0090] The intermediate shaft 610 is fixed below the connecting cross beam 240 through a connecting lug 241, and the limiting support 200 is rotatably connected to the second connecting rod 620 through the intermediate shaft 610.

[0091] Specifically, a downwardly extending connecting lug 241 is provided below the connecting beam 240, and an intermediate shaft 610 is fixed on the connecting lug 241. One end of the intermediate shaft 610 extends to the outside of the connecting lug 241 and is hinged to the second connecting rod 620.

[0092] In some embodiments of this application, an arc-shaped limiting groove 141 is also formed on the supporting beam 140, and one end of the adapter shaft 640 is inserted into the limiting groove, and the adapter shaft 640 is configured to move along the arc-shaped limiting groove 141.

[0093] The user operates the handle end, causing the adapter shaft 640 to move back and forth along the arc-shaped limiting groove 141, which in turn drives the limiting support 200 to rotate through the first connecting rod 630 and the second connecting rod 620.

[0094] For details, please refer to Figure 9 In the non-working state, the adapter shaft 640 is located in the arc-shaped limiting groove 141 away from the rear end of the limiting support member 200. Before using the foot pedal assembly 300, the user holds the handle end and pushes the operating part 400 forward (that is, towards the limiting support member 200). The operating part 400 drives the adapter shaft 640 to move forward along the arc-shaped limiting groove 141 through the first connecting rod 630. At the same time, the first connecting rod 630 drives the second connecting rod 620 to move forward. The second connecting rod 620 further drives the connecting rod beam to rotate relative to the support base frame 100, causing the limiting support member 200 to rotate forward until it contacts the first positioning part 120. In this state, the limiting support member 200 is in the working state, and the downward rotation limit of the foot pedal assembly 300 is released, allowing the user to step on the foot pedal assembly 300 for exercise.

[0095] When you finish exercising, refer to Figure 10 When the user holds the handle end and pulls the operating part 400 backward, the operating part 400 drives the adapter shaft 640 to move backward along the arc-shaped limiting groove 141 via the first connecting rod 630. At the same time, the first connecting rod 630 drives the second connecting rod 620 to move backward. The second connecting rod 620 further drives the connecting rod crossbeam to rotate backward relative to the support base 100 until the second limiting end on the limiting support member 200 contacts the second positioning part 130. In this state, the first limiting end 220 of the limiting support member 200 is vertically upward and is used to support the support part 330 on the foot pedal assembly 300.

[0096] In some embodiments of this application, a buffer pad 500 is provided on the first positioning part 120, the first limiting end 220 and / or the second limiting end.

[0097] The cushioning pad 500 helps to reduce vibration transmission between the limiting support 200 and the first positioning part 120, and between the limiting support 200 and the foot pedal assembly 300, thereby reducing noise and protecting the user during exercise.

[0098] In some embodiments of the present application, with reference to Figure 11 The support seat 110 includes a fixed support seat 111 and a movable support seat 112, the movable support seat 112 is hinged to the support base 100 at one end close to the fixed support seat 111, and the bottom of the movable support seat 112 is further provided with a movable upright beam 160, a plurality of adjusting holes 161 are formed on the movable upright beam 160, and a latch 150 is arranged on the support base 100 and connected to the corresponding adjusting hole 161 to realize the angle adjustment of the movable support seat 112.

[0099] The user sits on the fixed support seat 111, and the angle of the movable support seat 112 relative to the fixed support seat 111 is adjusted, so that the user can sit or lie at a preset angle according to different needs, and the comfort is higher.

[0100] The end of the movable support seat 112 close to the fixed support seat 111 can be rotatably connected to the support base 100 through a connecting shaft, or a spring or other telescopic member 170 can be arranged between the movable support seat 112 and the support base 100 to play a buffering role and also can be telescopic within a certain range according to the angle adjustment of the movable support seat 112.

[0101] Specifically, when the user needs to sit and exercise, the support base 100 is connected with the lower adjusting hole 161 of the movable upright beam 160 through the latch 150, and in this state, the included angle between the movable support seat 112 and the fixed support seat 111 is small, which is convenient for the user to sit and exercise.

[0102] When the user needs to exercise in a lying state, the support base 100 is connected with the upper adjusting hole 161 of the movable upright beam 160 through the latch 150, and in this state, the included angle between the movable support seat 112 and the fixed support seat 111 is large, and the user can exercise in a lying state.

[0103] The leg trainer related to the present application is provided with two groups of foot pedal assemblies 300 which are independent of each other on the support base 100, and a limiting support 200 is correspondingly arranged below the foot pedal assembly 300, the limiting support 200 is used to provide support for the foot pedal assembly 300 when the foot pedal assembly 300 is in a non-working state, and the limiting support 200 can be rotated to contact the first positioning part 120 when the foot pedal assembly 300 is in a working state, the first positioning part 120 provides support for the limiting support 200, at this time, the rotation limitation of the foot pedal assembly 300 in the downward direction is released, and the rotation range of the foot pedal assembly 300 is increased to realize large-angle exercise of the foot pedal movement and improve the exercise effect.

[0104] The two pedal assemblies 300 can be simultaneously pedaled outward or reset, can be alternately pedaled, or one of the pedal assemblies 300 can work alone, so that the exercise mode is various and more scientific, and the two legs are respectively applied to the corresponding pedal assemblies 300, so that the problem of uneven force of the two legs is avoided.

[0105] As far as possible, the various aspects and features described and illustrated in the specification can be applied individually, and these individual aspects can be the subject of a divisional application.

[0106] In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0107] The above is merely specific implementation of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application, therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A leg trainer, characterized in that, The leg training device comprises a support base frame, a support seat, a first positioning part and a second positioning part arranged on the support base frame, two groups of foot pedal assemblies, each group of foot pedal assemblies comprising a foot pedal part, a connecting part and a support part, the foot pedal part and the support part being respectively arranged at two ends of the connecting part, the connecting part being rotatably connected to the support base frame, and two groups of limiting support parts arranged below the foot pedal assemblies, the limiting support parts being rotatably connected to the support base frame.

2. The leg training device according to claim 1, wherein the first positioning part and the support seat are respectively arranged at a first end and a second end of the support base frame, and the first positioning part extends upwardly and obliquely along a direction towards the second end.

3. The leg training device according to claim 1, wherein the limiting support part comprises a limiting vertical part and a limiting horizontal part, the limiting horizontal part being angularly connected to the limiting vertical part, the bottom of the limiting vertical part being rotatably connected to the support base frame, the top of the limiting vertical part being provided with a first limiting end, the top of the limiting horizontal part being provided with a second limiting end, in the working state, the limiting support part rotates to be in contact with the first positioning part, in the non-working state, the limiting support part rotates to be in contact with the second positioning part, and the support part is supported on the first limiting end.

4. The leg training device according to claim 1, wherein a support vertical beam is further arranged on the support base frame, an operating part is rotatably connected to the support vertical beam, and the operating part is connected to the limiting support part through a connecting rod assembly to drive the limiting support part to rotate.

5. The leg training device according to claim 4, wherein two ends of the operating part are respectively a handle end and a connecting end, the handle end and the connecting end are respectively arranged at two sides of the support vertical beam, and the connecting end is connected to the connecting rod assembly.

6. The leg training device according to claim 5, wherein the connecting rod assembly comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is connected to the connecting end, the other end of the first connecting rod is hingedly connected to the second connecting rod through an adapter shaft, and the other end of the second connecting rod is connected to the limiting support part.

7. The leg training device according to claim 6, wherein a connecting cross beam is further arranged on the limiting support part, an intermediate shaft is connected to the connecting cross beam, and the intermediate shaft is rotatably connected to the second connecting rod.

8. The leg training device according to claim 6, wherein an arc-shaped limiting groove is further formed on the support vertical beam, one end of the adapter shaft is inserted into the limiting groove, and the adapter shaft is configured to move along the arc-shaped limiting groove. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 9. The leg trainer according to claim 3, characterized in that, a buffer pad is arranged on the first positioning part, the second positioning part, the first limiting end and / or the second limiting end.

10. The leg trainer according to claim 1, characterized in that, the support seat comprises a fixed support seat and a movable support seat, one end of the movable support seat is hinged to the support base frame, and the bottom of the movable support seat is further provided with a movable vertical beam, a plurality of adjusting holes are formed in the movable vertical beam, and a latch is arranged on the support base frame and connected to the corresponding adjusting hole to adjust the angle of the movable support seat.

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