Adjustable leg trainer

Abstract

The utility model belongs to the technical field of fitness equipment, and particularly relates to an adjustable leg trainer which comprises two supports connected in a rotating mode, an elastic piece is arranged between the two supports and can drive the two supports to reset relatively, each support comprises a support body and an extension rod, the support body is provided with a hinge portion and an extension arm, and the hinge portion is connected with the extension arm. The extension rods are provided with leg leaning parts, the hinge parts on the two support bodies are rotationally connected, the extension rods are movably arranged on the extension arms, the extension frames are provided with at least two fixing positions, the distances between the extension rods and the hinge parts are different when the extension rods are located at the different fixing positions, and the extension rods are provided with locking parts. And the locking piece is respectively connected with the extension rod and the extension arm and enables the extension rod to be kept on each fixing position. The adjustable leg trainer provided by the utility model is simple in structure and suitable for being used by different users.

Description

Technical Field

[0001] The utility model belongs to the technical field of fitness equipment, and particularly relates to an adjustable leg trainer. Background Art

[0002] The leg trainer, also known as the leg beauty machine, is clamped between the legs and performed repeated opening and closing movements to achieve the effect of beautiful legs and buttocks. It is widely loved by sports enthusiasts, especially young people.

[0003] Most common leg trainers include two rotatably connected brackets, with leg rests provided on the brackets. When in use, the user's legs rest against the leg rests to drive the two brackets to rotate relative to each other, such as the leg trainer disclosed in Chinese utility model patent application CN202122875439.7, which has a main body and two leg rests; the main body includes two arms that are axially connected to each other and can be elastically folded and unfolded; the arm includes an inner side and an outer side; the leg rest includes a contact portion that adapts to the leg and a mounting portion located on the back of the contact portion; the leg rest is installed on the outer side of the arm through the mounting portion, and the leg rest can rotate around the rotation centerline passing through the arm; a locking piece locks the leg rest on the arm in a selected orientation.

[0004] The above structure is simple and easy to use, but most common brackets are integrated structures. During use, the force arm length of the leg trainer is constant, which leads to a constant training intensity of the leg trainer. Different users require different specifications of leg trainers during training, and the leg trainer cannot meet the user's training needs after the user uses it for a long time. The user needs to purchase leg trainers of different specifications for different stages of training, and the fitness cost is high. Summary of the invention

[0005] In order to overcome the defects in the prior art, the purpose of the utility model is to provide an adjustable leg trainer with a simple structure and suitable for different users.

[0006] The purpose of the utility model is achieved in this way:

[0007] An adjustable leg trainer comprises two rotatably connected brackets, an elastic member is arranged between the two brackets, the elastic member can drive the two brackets to reset relative to each other, the bracket comprises a bracket body and an extension rod, the bracket body is provided with a hinge part and an extension arm, the extension rod is provided with a leg support part, the hinge parts on the two bracket bodies are rotatably connected, the extension rod is movably arranged on the extension arm, at least two fixed positions are arranged on the extension frame, the distance between the extension rod and the hinge part is different when the extension rod is in different fixed positions, and a locking member is arranged on the extension rod, the locking member is respectively connected to the extension rod and the extension arm and keeps the extension rod in each fixed position.

[0008] The utility model is further configured as follows: a guide groove is provided on the extension arm, a guide part is provided on the extension rod, and the guide part is slidably arranged in the guide groove; when the extension rod is controlled to switch between different fixed positions, the guide part slides relatively in the guide groove.

[0009] The utility model is further configured as follows: an inclined guide surface is arranged at the end of the guide portion, and the guide portion penetrates into the guide groove through the guidance of the guide surface.

[0010] The utility model is further configured as follows: at least two groups of positioning holes are arranged on the extension frame, and the locking pieces cooperate with different groups of positioning holes to fix the extension rod at different fixed positions.

[0011] The utility model is further configured as follows: two locking pieces are arranged on the extension rod, the locking pieces are arranged on both sides of the extension rod respectively, and each group of positioning holes includes positioning holes respectively matched with the two locking pieces.

[0012] The utility model is further configured as follows: an elastic arm is integrally arranged on the locking member, the elastic arm and the extension rod are integrally arranged, and the elastic member drives the locking member to reset and keeps the locking member and the extension arm matched.

[0013] The utility model is further configured as follows: a connecting shaft is provided on the leg rest member, an extension rod is slidably provided on the connecting shaft, and can rotate relative to the extension arm through the connecting shaft, a positioning protrusion is provided on the extension rod, a plurality of positioning grooves are provided on the leg rest member, the positioning grooves are arranged at intervals around the circumference of the connecting shaft, an elastic member is provided on the extension rod, the elastic member drives the extension rod to reset axially along the connecting shaft and keeps the positioning protrusion and the positioning groove matched, thereby fixing the extension rod and the leg rest member relatively.

[0014] The utility model is further configured as follows: a plurality of positioning protrusions are arranged on the circumference of the extension rod, and the positioning protrusions correspond to the positioning grooves one by one.

[0015] The utility model is further configured as follows: the hinged parts are each provided with a mounting groove, the mounting grooves on the two brackets are arranged opposite to each other, a torsion spring is arranged in the mounting groove, a mounting protrusion is arranged in the mounting groove, a fixing groove is arranged on one side of the mounting groove, a pressure cover is detachably provided at the end of the fixing groove, the torsion spring is sleeved on the mounting protrusion, and the pressure cover installs the rotating arm of the torsion spring in the fixing groove.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] In the utility model, the force arm of the leg trainer is adjusted by the movably connected extension arm and the extension rod, so as to increase or decrease the training intensity of the leg trainer, which is convenient for different users or users at different training stages to use, and is beneficial to reducing fitness costs. The structure is simple and convenient for production and processing.

[0018] The slidably arranged guide part and guide groove in the utility model facilitate stable adjustment of the extension arm and the extension rod, and are convenient for users to use. The arrangement of the guide surface facilitates the quick connection and cooperation between the guide part and the guide groove, and facilitates the quick assembly of the extension arm and the extension rod.

[0019] The structure of the multiple groups of positioning holes in the utility model is simple and convenient for positioning and installing the extension arm and the extension rod. The locking pieces respectively arranged on both sides of the extension rod facilitate uniform force on the extension rod and stable installation of the extension arm and the extension rod. The integrally arranged locking piece, elastic arm and extension rod facilitate the assembly and production of the leg trainer and facilitate the production and processing of the leg trainer.

[0020] The provision of the positioning protrusion and the positioning groove in the utility model facilitates the positioning installation of the extension rod and the leg rest part, while the provision of the elastic part prevents the positioning protrusion and the positioning groove from accidentally disengaging during use. During use, the user needs to manually pull the extension rod and the leg rest part relatively away to make the extension rod and the leg rest part rotate relative to each other, thereby preventing the extension rod and the leg rest part from accidentally rotating during use; the one-to-one corresponding positioning protrusion and positioning groove are conducive to improving the connection strength between the extension rod and the leg rest part, thereby preventing damage to the positioning protrusion and the positioning groove during use.

[0021] The arrangement of the mounting groove, the mounting protrusion and the fixing groove in the utility model facilitates the stable installation of the torsion spring and the assembly and production of the leg trainer. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model;

[0023] Figure 2 It is an explosion schematic diagram of the utility model;

[0024] Figure 3 It is a partial cross-sectional view of the utility model;

[0025] Figure 4 It is a structural schematic diagram of the bracket in the utility model;

[0026] Figure 5 It is a structural schematic diagram of the extension rod in the utility model;

[0027] Figure 6 It is a structural schematic diagram of the leg support member in the utility model.

[0028] Meaning of the numbers in the figure: 1- bracket body; 11- hinged part; 12- extension arm; 13- mounting protrusion;

[0029] 14-installation slot; 15-fixing slot; 16-pressure cover; 121-guide slot; 122-positioning hole; 3-extension rod;

[0030] 31-sealing cover; 32-guide portion; 33-locking member; 34-elastic arm; 35-first mounting hole;

[0031] 36-positioning protrusion; 37-spring groove; 321-guide surface; 4-leg support member; 41-fixing groove; 42-nut;

[0032] 43-cover body; 44-positioning groove; 45-second mounting hole; 5-connecting shaft; 51-step portion; 6-elastic member;

[0033] 7-Roller. DETAILED DESCRIPTION

[0034] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments:

[0035] See also Figures 1 to 6 As shown, an adjustable leg trainer includes two rotatably connected brackets, an elastic member 6 is arranged between the two brackets, and the elastic member 6 can drive the two brackets to reset relative to each other, the bracket includes a bracket body 1 and an extension rod 3, the bracket body 1 is provided with a hinge part 11 and an extension arm 12, and the extension rod 3 is provided with a leg support member 4, the hinge parts 11 on the two bracket bodies 1 are rotatably connected, the extension rod 3 is movably arranged on the extension arm 12, and at least two fixed positions are arranged on the extension frame. When the extension rod 3 is in different fixed positions, the distance between the extension rod 3 and the hinge part 11 is different, and the extension rod 3 is provided with a locking member 33, which is respectively connected to the extension rod 3 and the extension arm 12 and keeps the extension rod 3 in each fixed position. In this structure, the force arm of the leg trainer is adjusted by the movably connected extension arm 12 and the extension rod 3, so as to increase or decrease the training intensity of the leg trainer, which is convenient for different users or users at different training stages to use, and is conducive to reducing fitness costs. Moreover, the structure is simple and convenient for production and processing.

[0036] The locking member 33 can be a fastener such as a bolt that connects the extension rod 3 and the extension arm 12. In this embodiment, the locking member 33 is preferably a clamping member movably arranged on the extension rod 3, which is clamped with the extension arm 12 to relatively fix the extension rod 3 and the extension arm 12.

[0037] Preferably, the locking member 33 is integrally provided with an elastic arm 34, and the elastic arm 34 is integrally provided with the extension rod 3. The elastic member 6 drives the locking member 33 to reset and keeps the locking member 33 and the extension arm 12 in coordination. The setting of the elastic arm 34 facilitates the stable coordination of the locking member 33 and the extension arm 12, thereby avoiding accidental separation of the locking member 33 and the extension arm 12 during use. In addition, the integrally provided locking member 33, elastic arm 34 and extension rod 3 facilitate the assembly and production of the leg trainer, and facilitate the production and processing of the leg trainer.

[0038] The extension arm 12 is provided with a guide groove 121, and the extension rod 3 is provided with a guide portion 32, and the guide portion 32 is slidably arranged in the guide groove 121; when the extension rod 3 is controlled to switch between different fixed positions, the guide portion 32 slides relatively in the guide groove 121, and the sliding guide portion 32 and the guide groove 121 facilitate stable adjustment of the extension arm 12 and the extension rod 3, which is convenient for users to use.

[0039] In this embodiment, the end of the guide portion 32 is preferably provided with an inclined guide surface 321, and the guide portion 32 is guided into the guide groove 121 by the guide surface 321. The setting of the guide surface 321 facilitates the quick connection and cooperation between the guide portion 32 and the guide groove 121, and facilitates the quick assembly of the extension arm 12 and the extension rod 3.

[0040] The extension frame of the utility model is provided with at least two groups of positioning holes 122, and the locking member 33 cooperates with different groups of positioning holes 122 to fix the extension rod 3 at different fixed positions. The structure of multiple groups of positioning holes 122 is simple and convenient for positioning and installing the extension arm 12 and the extension rod 3.

[0041] In this embodiment, two locking members 33 are provided on the extension rod 3, and the locking members 33 are respectively arranged on both sides of the extension rod 3. Each group of positioning holes 122 includes positioning holes 122 respectively matched with the two locking members 33. The locking members 33 respectively arranged on both sides of the extension rod 3 facilitate uniform force on the extension rod 3 and facilitate stable installation of the extension arm 12 and the extension rod 3.

[0042] The leg rest member 4 is provided with a connecting shaft 5, the extension rod 3 is slidably arranged on the connecting shaft 5, and can rotate relative to the extension arm 12 through the connecting shaft 5, and a positioning protrusion 36 is arranged on the extension rod 3, and a plurality of positioning grooves 44 are arranged on the leg rest member 4, and the positioning grooves 44 are arranged at intervals around the circumference of the connecting shaft 5, and an elastic member 6 is arranged on the extension rod 3, and the elastic member 6 drives the extension rod 3 to reset axially along the connecting shaft 5 and keeps the positioning protrusion 36 and the positioning groove 44 matched, so that the extension rod 3 and the leg rest member 4 are relatively fixed, and the arrangement of the positioning protrusion 36 and the positioning groove 44 facilitates the positioning and installation of the extension rod 3 and the leg rest member 4, and the arrangement of the elastic member 6 prevents the positioning protrusion 36 from accidentally disengaging from the positioning groove 44 during use. During use, the user needs to manually pull the extension rod 3 and the leg rest member 4 away from each other to make the extension rod 3 and the leg rest member 4 rotate relative to each other, so as to prevent the extension rod 3 and the leg rest member 4 from accidentally rotating during use.

[0043] The elastic member 6 is a compression spring. A spring groove 37 is provided on the extension rod 3. The elastic member 6 is arranged in the spring groove 37. A step portion 51 is provided on the connecting shaft 5. One end of the elastic member 6 abuts against the bottom of the spring groove 37. The other end of the elastic member 6 abuts against the step portion 51. A sealing cover 31 is provided on the extension rod. The sealing cover 31 seals the spring groove 37 and hides the connecting shaft 5.

[0044] In this embodiment, the connecting shaft 5 is a bolt, a fixing groove 41 is provided in the leg support member 4, a second mounting hole 45 is provided at the bottom of the fixing groove 41, a nut 42 adapted to the bolt is fixedly provided in the fixing groove 41, a first mounting hole 35 is provided at the bottom of the spring groove 37, the bolt passes through the first mounting hole 35 and the second mounting hole 45 and is connected to the nut 42, and a cover body 43 is detachably provided on the leg support member 4, the cover body 43 covers the fixing groove 41 and hides the nut 42.

[0045] Preferably, a plurality of positioning protrusions 36 are provided on the circumference of the extension rod 3, and the positioning protrusions 36 correspond to the positioning grooves 44 one by one. The one-to-one corresponding positioning protrusions 36 and positioning grooves 44 are conducive to improving the connection strength between the extension rod 3 and the leg rest member 4, and avoiding damage to the positioning protrusions 36 and positioning grooves 44 during use.

[0046] The hinged portion 11 is provided with a mounting groove 14, and the mounting grooves 14 on the two brackets are arranged opposite to each other. A torsion spring is arranged in the mounting groove 14, and a mounting protrusion 13 is arranged in the mounting groove 14. A fixing groove 15 is arranged on one side of the mounting groove 14, and a pressure cover 16 is detachably provided at the end of the fixing groove 15. The torsion spring is sleeved on the mounting protrusion 13, and the pressure cover 16 installs the rotating arm of the torsion spring in the fixing groove 15. The arrangement of the mounting groove 14, the mounting protrusion 13 and the fixing groove 15 facilitates the stable installation of the torsion spring and the assembly and production of the leg trainer.

[0047] Torsion springs are commonly used parts in leg trainers, so torsion springs are not shown in the drawings of the utility model specification, but those skilled in the art can understand the specific installation method of torsion springs based on the specification and drawings.

[0048] The extension rod 3 of the utility model is rotatably provided with a roller 7, one side of the roller 7 is hidden in the extension rod 3, and the other side of the roller 7 passes through the extension rod 3 and is exposed to the outside, and the user can use the roller 7 to massage the user's body.

[0049] The above embodiments are only 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. An adjustable leg trainer, comprising two rotatably connected brackets, an elastic member (6) being arranged between the two brackets, the elastic member (6) being capable of driving the two brackets to reset relative to each other, characterized in that: The bracket comprises a bracket body (1) and an extension rod (3); the bracket body (1) is provided with a hinged portion (11) and an extension arm (12); the extension rod (3) is provided with a leg support member (4); the hinged portions (11) on the two bracket bodies (1) are rotatably connected; the extension rod (3) is movably arranged on the extension arm (12); at least two fixed positions are arranged on the extension frame; when the extension rod (3) is in different fixed positions, the distance between the extension rod (3) and the hinged portion (11) is different; and a locking member (33) is arranged on the extension rod (3); the locking member (33) is respectively connected to the extension rod (3) and the extension arm (12) and keeps the extension rod (3) in each fixed position.

2. An adjustable leg trainer according to claim 1, characterized in that: The extension arm (12) is provided with a guide groove (121), the extension rod (3) is provided with a guide portion (32), and the guide portion (32) is slidably arranged in the guide groove (121); when the extension rod (3) is controlled to switch between different fixed positions, the guide portion (32) slides relatively in the guide groove (121).

3. An adjustable leg trainer according to claim 2, characterized in that: An inclined guide surface (321) is provided at the end of the guide portion (32), and the guide portion (32) penetrates into the guide groove (121) through the guidance of the guide surface (321).

4. An adjustable leg trainer according to claim 1, 2 or 3, characterized in that: At least two groups of positioning holes (122) are provided on the extension frame, and the locking member (33) cooperates with different groups of positioning holes (122) to fix the extension rod (3) at different fixed positions.

5. An adjustable leg trainer according to claim 4, characterized in that: The extension rod (3) is provided with two locking members (33), the locking members (33) are respectively provided on both sides of the extension rod (3), and each group of positioning holes (122) comprises positioning holes (122) respectively matched with the two locking members (33).

6. The adjustable leg trainer according to claim 1, characterized in that: The locking member (33) is integrally provided with an elastic arm (34), the elastic arm (34) and the extension rod (3) are integrally provided, and the elastic member (6) drives the locking member (33) to reset and keeps the locking member (33) and the extension arm (12) in cooperation.

7. An adjustable leg trainer according to claim 1, characterized in that: The leg support member (4) is provided with a connecting shaft (5), the extension rod (3) is slidably arranged on the connecting shaft (5), and can rotate relative to the extension arm (12) through the connecting shaft (5), and the extension rod (3) is provided with a positioning protrusion (36), and the leg support member (4) is provided with a plurality of positioning grooves (44), and the positioning grooves (44) are arranged at intervals around the circumference of the connecting shaft (5). The extension rod (3) is provided with an elastic member (6), and the elastic member (6) drives the extension rod (3) to be reset along the axial direction of the connecting shaft (5) and keeps the positioning protrusion (36) and the positioning groove (44) matched, so that the extension rod (3) and the leg support member (4) are relatively fixed.

8. An adjustable leg trainer according to claim 7, characterized in that: A plurality of positioning protrusions (36) are arranged on the circumference of the extension rod (3), and the positioning protrusions (36) correspond to the positioning grooves (44) one by one.

9. The adjustable leg trainer according to claim 1, characterized in that: The hinged portion (11) is provided with a mounting groove (14), the mounting grooves (14) on the two brackets are arranged opposite to each other, a torsion spring is arranged in the mounting groove (14), a mounting protrusion (13) is arranged in the mounting groove (14), a fixing groove (15) is arranged on one side of the mounting groove (14), a pressure cover (16) is detachably provided at the end of the fixing groove (15), the torsion spring is sleeved on the mounting protrusion (13), and the pressure cover (16) installs the rotating arm of the torsion spring in the fixing groove (15).

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