Leg clamping device

Abstract

The utility model provides a leg clamp, including two crank arm, torsion subassembly and support plate, crank arm includes driving end and driven end, the two driving end drives the two crank arm rotatable cooperation around the first rotating shaft, the torsion subassembly includes the coil spring or torsion spring that sleeves the first rotating shaft, the support plate includes support bracket and support panel, and the support panel includes the support bracket and the support panel. The supporting panel is assembled on the inner side of the supporting bracket, the driven end is rotationally assembled on the outer side of the supporting bracket through a second rotating structure, and the rotating structure comprises a second rotating shaft, a first end face gear arranged at the driven end, a second shaft sleeve and a second end face gear arranged on the outer side of the supporting bracket; the second rotating shaft and the second shaft sleeve are rotationally matched around a second axis, and the first end face gear and the second end face gear are synchronously meshed around the second axis. The first end face gear and the second end face gear are in transmission fit to achieve rotation of the supporting plate relative to the crank arm, and the crank arm has the advantages of being compact in structure, high in bearing capacity, capable of reducing vibration and noise and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of fitness equipment, in particular to a leg clamp. Background Art

[0002] The leg clamp is clamped between the two legs and repeatedly opens and closes to achieve the effect of beautiful legs and buttocks, and is widely loved by sports enthusiasts, especially young people. In the authorization announcement number CN213760383U, the first main body plastic part and the second main body plastic part are opened and closed by the cooperation between the first rotating head and the second rotating head, and the adjustability is poor. It is impossible to adjust the setting direction of the first main body plastic part and the second main body plastic part, and it is also impossible to adjust the distance between the first main body plastic part and the second main body plastic part and the first rotating head and the second rotating head. It is difficult to match and adapt to groups of different body shapes. Utility Model Content

[0003] In view of the above-mentioned defects of the prior art, the purpose of the present invention is to provide a leg clamp to meet the needs of users.

[0004] To achieve the above-mentioned purpose, the utility model provides a leg clamp, including two curved arms, a torsion assembly and a support plate, wherein the curved arms include an active end and a driven end arranged at two axial ends thereof, the two active ends drive the two curved arms to rotatably cooperate around a first axis through a first rotating shaft, the torsion assembly includes a coil spring or a torsion spring sleeved on the rotating shaft, which is suitable for providing resistance to prevent the two curved arms from approaching each other, the support plate includes a support bracket and a support panel, the support panel is assembled on the inner side of the support bracket and is suitable for contacting the inner side of the thigh, the driven end is rotatably assembled on the outer side of the support bracket through a second rotating structure,

[0005] The rotating structure includes a second rotating shaft extending outward from the outer side of the driven end, a first end face gear arranged on the driven end, a second shaft sleeve extending outward from the outer side of the supporting bracket, and a second end face gear arranged on the outer side of the supporting bracket. The second rotating shaft and the second shaft sleeve rotate in cooperation around a second axis, the first end face gear and the second end face gear are synchronously meshed around the second axis, and the second end face gear is integrally formed with the supporting bracket.

[0006] Preferably, the driven end includes a cylindrical structure coaxially arranged inside the second rotating shaft, the first end face gear is formed at one axial end of the cylindrical structure, and the second sleeve is coaxially arranged on the periphery of the second end face gear.

[0007] Preferably, the cylindrical structure includes a limit groove formed inside the cylindrical structure and an annular end plate arranged at one axial end of the limit groove, the first end face gear is arranged on the outer side of the annular end plate, a limit shaft is extended outwardly from the support bracket, a limit spring is arranged on the outer sleeve of the limit shaft, the limit shaft is suitable for extending into the limit groove through the annular end plate, one end of the limit spring is fixedly connected or abutted against the limit shaft, and the other end of the limit spring abuts against the inner side of the annular end plate, and the limit spring drives the first end face gear to engage with the second end face gear by providing a limit resistance arranged along the second axis.

[0008] Preferably, the cylindrical structure comprises an end cover, and the end cover is arranged at the other axial end of the limiting groove to form a closed end.

[0009] Preferably, the driven end includes an adapter, which is suitable for driving the support plate to move up and down relative to the crank arm, and the crank arm includes a travel rack extending from the driven end to the active end, and one end of the adapter is provided with the second rotating shaft and the first end face gear, and the other end of the adapter includes a plurality of tooth grooves, which are meshed with the rack so that the support plate and the crank arm are relatively fixed.

[0010] Preferably: the support bracket extends outward to form a limit cylinder arranged parallel to the second axis, and the limit cylinder accommodates a limit spring, the crank arm includes a travel groove arranged parallel to the travel rack and a slider slidably arranged in the travel groove, and the two ends of the limit spring are respectively abutted against the support bracket and the slider, and the limit spring provides a limit resistance arranged along the second axis to simultaneously drive the first end face gear to engage with the second end face gear and the travel rack to engage with the tooth groove.

[0011] Preferably: the adapter is suitable for moving away from the crank arm along the second axis direction under the action of external force, the limit spring is stretched, the travel rack is disengaged from the tooth groove, the adapter is suitable for driving the slider and the support plate to move relative to the crank arm, and after the external force is removed, the limit spring is suitable for driving the travel rack to resume engagement with the tooth groove.

[0012] As a preferred embodiment: the crank arm includes two parallel travel racks and the travel groove defined by the two travel racks, the adapter is suitable for moving away from the crank arm along the second axis direction under the action of external force, the limit spring is stretched, the travel rack is disengaged from the tooth groove, and the adapter is able to slide with the travel groove after rotating 90°, thereby driving the slider and the support plate to move relative to the crank arm, and the adapter is rotated and reset after removing the external force, and the limit spring is suitable for driving the travel rack to resume engagement with the tooth groove.

[0013] As a preferred embodiment: the two active ends are divided into a first active end and a second active end, the first active end includes a first outer cavity and a first inner cavity arranged opposite to each other, the second active end includes a second outer cavity and a second inner cavity arranged opposite to each other, the first inner cavity and the second inner cavity are connected to each other by rotation around a first axis after cooperation, the first inner cavity and the second inner cavity are combined to form an installation cavity suitable for setting a torsion assembly, and the first axis is defined as the central axis of the installation cavity.

[0014] Preferably, a sensing element that rotates synchronously with the first inner cavity is disposed at the bottom of the first inner cavity, and a sensor is disposed at the second inner cavity, wherein the sensor is suitable for sensing position changes of the sensing element for counting.

[0015] Preferably, the second outer cavity has a built-in control circuit board, the second active end includes a second outer end surface suitable for closing the second outer cavity, and the second outer end surface is embedded with a display screen suitable for displaying a counting structure, a reset switch and an on-off switch.

[0016] Preferably, the support plate comprises two symmetrically arranged wing plates, which are suitable for forming a curved structure with a tendency to converge, and the wing plates are provided with hollow portions, which are suitable for providing deformation space for the wing plates during exercise, so that the support plate maintains a fitting state, thereby improving the exercise experience and effect.

[0017] The beneficial effects of the utility model are:

[0018] (1) The support plate rotates relative to the crank arm by arranging the first end face gear and the second end face gear to cooperate with each other, which has the advantages of compact structure, high load-bearing capacity, reduced vibration and noise, etc. Furthermore, the first end face gear is integrally formed with the driven end, and the second end face gear is integrally formed with the support bracket, which improves the structural strength and overall firmness of the rotating structure.

[0019] (2) By setting up the adapter, the support plate can be adjusted in height relative to the crank arm, which can not only adjust the resistance by adjusting the length of the force arm, but also adapt to the fitting needs of users of different body shapes, thereby improving the adjustability of the product and enhancing the user experience. Furthermore, by setting up a limit spring, a limit resistance is provided between the adapter and the crank arm, and between the adapter and the support plate at the same time, which makes the structure simple and efficient, and is conducive to maintaining stability during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a leg clamp provided in Example 1.

[0021] Figure 2 This is a schematic diagram of an explosion of a leg clamp provided in Example 1.

[0022] Figure 3 This is a cross-sectional schematic diagram of a leg clamp provided in Example 1.

[0023] Figure 4 This is a cross-sectional schematic diagram of one of the crank arms and the support plate provided in Example 1.

[0024] Figure 5 This is a schematic diagram of the structure of the clamping plate provided in Example 1.

[0025] Figure 6 This is an exploded schematic diagram of one of the crank arms and the support plate provided in Example 2.

[0026] Figure 7 This is a schematic diagram of the structure of the crank arm provided in Example 2.

[0027] In the figure, a crank arm 101, a support plate 102, a first active end 103, a second active end 104, a driven end 105, a first outer cavity 106, a first inner cavity 107, a second outer cavity 108, a second inner cavity 109, a support bracket 110, a support panel 111, a first threaded sleeve 112, a rotating sleeve 113, a first screw 114, a second rotating shaft 115, a first end face gear 116, a second end face gear 117, a second sleeve 118, and a cylindrical structure 1 19, limiting groove 120, annular end plate 121, end cover 122, second threaded sleeve 123, second screw 124, limiting spring 125, sensing element 126, sensor 127, control circuit board 128, second outer end surface 129, display screen 130, reset switch 131, on / off switch 132, hollow portion 133, power supply 134, adapter 201, travel rack 202, travel groove 203, slider 204, tooth groove 205, limiting cylinder 206. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the scheme of the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0030] In addition, it should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0031] Example 1

[0032] like Figure 1-5 The present invention discloses a leg clamp, comprising two curved arms 101, a torsion assembly and a support plate 102. The curved arms 101 include an active end and a driven end 105 arranged at two axial ends thereof, the two active ends are divided into a first active end 103 and a second active end 104, the first active end 103 includes a first outer cavity 106 and a first inner cavity 107 arranged opposite to each other, the second active end 104 includes a second outer cavity 108 and a second inner cavity 109 arranged opposite to each other, the first inner cavity 107 and the second inner cavity 109 are combined to form an installation cavity suitable for setting the torsion assembly, the central axis of the installation cavity is defined as the first axis, the first inner cavity 107 and the second inner cavity 109 are connected to rotate around the first axis after cooperation, and the torsion assembly includes a coil spring (not shown in the figure) sleeved on the rotating shaft, which is suitable for providing resistance to prevent the two curved arms 101 from approaching each other. A first threaded sleeve 112 extends from the center of the second inner cavity 109, a rotating sleeve 113 set on the first threaded sleeve 112 extends from the center of the first inner cavity 107, a first screw 114 extends from the first outer cavity into the first inner cavity 107, the first screw 114 is threadedly connected with the first threaded sleeve 112 to form a first rotating shaft, and the first screw 114 includes a screw head suitable for abutting the bottom of the first inner cavity 107, and the first screw 114 is suitable for limiting the first active end 103 and the second active end 104 along its axial direction. The support plate 102 includes a support bracket 110 and a support panel 111, the support panel 111 is assembled on the inner side of the support bracket 110 and is suitable for contacting the inner side of the thigh, and the driven end 105 can be rotatably assembled on the outer side of the support bracket 110 through a rotating structure. The rotating structure includes a second rotating shaft 115 extending outward from the outer side of the driven end 105, a first end face gear 116 arranged on the driven end 105, a second shaft sleeve 118 extending outward from the outer side of the supporting bracket 110, and a second end face gear 117 arranged on the outer side of the supporting bracket 110. The second rotating shaft 115 and the second shaft sleeve 118 rotate in cooperation around the second axis, and the first end face gear 116 and the second end face gear 117 are synchronously meshed around the second axis.

[0033] In this embodiment, the driven end 105 includes a cylindrical structure 119 coaxially arranged inside the second rotating shaft 115, the cylindrical structure 119 includes a limiting groove 120 formed inside, an annular end plate 121 arranged at one axial end of the limiting groove 120, and an end cover 122 arranged at the other axial end of the limiting groove 120 and forming a closed end, and the first end face gear 116 is arranged on the outer side of the annular end plate 121. The second shaft sleeve 118 is coaxially arranged on the periphery of the second end face gear 117, and the second end face gear 117 is integrally formed with the support bracket 110. A limiting shaft extends outward from the support bracket 110, and the limiting shaft includes a second threaded sleeve 123 and a second screw 124 assembled on the second threaded sleeve 123. A limiting spring 125 is provided on the outer sleeve of the limiting shaft. The limiting shaft is suitable for extending into the limiting groove 120 through the annular end plate 121. One end of the limiting spring 125 abuts against the screw head of the second screw 124, and the other end of the limiting spring 125 abuts against the inner side of the annular end plate 121. The limiting spring 125 drives the first end face gear 116 to engage with the second end face gear 117 by providing a limiting resistance arranged along the second axis.

[0034] In this embodiment, the bottom of the first inner cavity 107 is provided with a sensing element 126 that rotates synchronously therewith, and the second inner cavity 109 is provided with a sensor 127, which is suitable for sensing the position change of the sensing element 126 to perform counting. The second outer cavity 108 is built with a control circuit board 128 and a power supply 134, and the second active end 104 includes a second outer end surface 129 suitable for closing the second outer cavity 108, and the second outer end surface 129 is embedded with a display screen 130 suitable for displaying the counting structure, a reset switch 131 and an on-off switch 132.

[0035] In this embodiment, the support plate 102 includes two symmetrically arranged wing plates, which are suitable for forming a curved structure with a tendency to converge, and the wing plates are provided with a hollow portion 133, which is suitable for providing a deformation space for the wing plates during exercise, so that the support plate 102 maintains a fitting state, thereby improving the exercise experience and effect.

[0036] Example 2

[0037] like Figure 6-7The above-mentioned leg clamp is different from the embodiment 1 in that the driven end 105 includes an adapter 201, and the adapter 201 is suitable for driving the support plate 102 to move up and down relative to the crank arm 101. The crank arm 101 includes two parallel travel racks 202, a travel groove 203 defined by the two travel racks 202, and a slider 204 slidably arranged in the travel groove 203. One end of the adapter 201 is provided with a second rotating shaft 115 and a first end face gear 116, and the other end of the adapter 201 includes a plurality of tooth grooves 205, and the tooth grooves 205 are engaged with the racks so that the support plate 102 and the crank arm 101 are relatively fixed. The support bracket 110 extends outwardly to form a limit cylinder 206 arranged parallel to the second axis, and the limit cylinder 206 contains a limit spring (not shown in the figure), and the two ends of the limit spring are respectively abutted against the support bracket 110 and the slider 204. The limiting spring 125 provides a limiting resistance arranged along the second axis to simultaneously drive the first end face gear 116 to mesh with the second end face gear 117 and the travel rack 202 to mesh with the tooth groove 205 .

[0038] Specifically, when the adapter 201 moves away from the crank arm 101 along the second axis direction under the action of an external force, the limit spring 125 is stretched and elongated, the travel rack 202 is disengaged from the tooth groove 205, and the adapter 201 is able to slide with the travel groove 203 after rotating 90°, thereby driving the slider 204 and the support plate 102 to move relative to the crank arm 101. After the external force is removed, the adapter 201 is rotated and reset, and the limit spring 125 is suitable for driving the travel rack 202 to resume the engagement with the tooth groove 205. In some other embodiments, the crank arm 101 includes an adapter 201 that is suitable for directly driving the slider 204 to move up and down relative to the crank arm 101 after the adapter 201 moves away from the crank arm 101 along the second axis direction under the action of an external force. After the external force is removed, the limit spring 125 can directly drive the travel rack 202 to disengage from the tooth groove 205.

[0039] The above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model.

Claims

1. A leg clamp, characterized in that: The invention comprises two crank arms, a torsion assembly and a support plate, wherein the crank arms comprise an active end and a driven end arranged at two axial ends thereof, the two active ends drive the two crank arms to rotatably cooperate around a first axis through a first rotating shaft, the torsion assembly comprises a coil spring or a torsion spring sleeved on the first rotating shaft, which is suitable for providing resistance to prevent the two crank arms from approaching each other, the support plate comprises a support bracket and a support panel, the support panel is mounted on the inner side of the support bracket and is suitable for contacting the inner side of the thigh, the driven end is rotatably mounted on the outer side of the support bracket through a rotating structure, The rotating structure includes a second rotating shaft extending outward from the outer side of the driven end, a first end face gear arranged on the driven end, a second shaft sleeve extending outward from the outer side of the supporting bracket, and a second end face gear arranged on the outer side of the supporting bracket. The second rotating shaft and the second shaft sleeve rotate in cooperation around a second axis, and the first end face gear and the second end face gear are synchronously meshed around the second axis.

2. A leg clamp according to claim 1, characterized in that: The driven end includes a cylindrical structure coaxially arranged inside the second rotating shaft, the first end face gear is formed at one axial end of the cylindrical structure, the second sleeve is coaxially arranged on the periphery of the second end face gear, and the second end face gear is integrally formed with the supporting bracket.

3. A leg clamp according to claim 2, characterized in that: The cylindrical structure includes a limit groove formed inside it and an annular end plate arranged at one axial end of the limit groove, the first end face gear is arranged on the outer side of the annular end plate, a limit shaft is extended outward from the support bracket, a limit spring is arranged on the outer sleeve of the limit shaft, the limit shaft is suitable for extending into the limit groove through the annular end plate, one end of the limit spring is fixedly connected or abutted against the limit shaft, and the other end of the limit spring abuts against the inner side of the annular end plate, and the limit spring drives the first end face gear to engage with the second end face gear by providing a limit resistance arranged along the second axis.

4. A leg clamp according to claim 2, characterized in that: The driven end includes an adapter, which is suitable for driving the support plate to move up and down relative to the crank arm. The crank arm includes a travel rack extending from the driven end to the active end. The second rotating shaft and the first end face gear are provided at one end of the adapter, and the other end of the adapter includes a plurality of tooth grooves, which are engaged with the rack so that the support plate and the crank arm are relatively fixed.

5. A leg clamp according to claim 4, characterized in that: The support bracket extends outward to form a limit cylinder arranged parallel to the second axis, and a limit spring is accommodated in the limit cylinder. The crank arm includes a travel groove arranged parallel to the travel rack and a slider slidably arranged in the travel groove. The two ends of the limit spring are respectively abutted against the support bracket and the slider. The limit spring provides a limit resistance arranged along the second axis to simultaneously drive the first end face gear to engage with the second end face gear and the travel rack to engage with the tooth groove.

6. A leg clamp according to claim 5, characterized in that: The adapter is suitable for moving away from the crank arm along the second axis direction under the action of external force, the limit spring is stretched, the travel rack is disengaged from the tooth groove, and the adapter is suitable for driving the slider and the support plate to move relative to the crank arm. After the external force is removed, the limit spring is suitable for driving the travel rack to resume engagement with the tooth groove.

7. The leg clamp according to claim 5, characterized in that: The crank arm includes two parallel travel racks and the travel groove defined by the two travel racks. The adapter is suitable for moving away from the crank arm along the second axis direction under the action of external force. The limit spring is stretched and elongated, and the travel rack is disengaged from the tooth groove. After the adapter is rotated 90°, it can slide with the travel groove, thereby driving the slider and the support plate to move relative to the crank arm. After the external force is removed, the adapter is rotated and reset, and the limit spring is suitable for driving the travel rack to resume engagement with the tooth groove.

8. The leg clamp according to claim 1, characterized in that: The two active ends are divided into a first active end and a second active end, the first active end includes a first outer cavity and a first inner cavity arranged opposite to each other, the second active end includes a second outer cavity and a second inner cavity arranged opposite to each other, the first inner cavity and the second inner cavity are connected to each other by rotating around a first axis after cooperation, the first inner cavity and the second inner cavity are combined to form an installation cavity suitable for setting a torsion component, and the first axis is defined as the central axis of the installation cavity.

9. The leg clamp according to claim 8, characterized in that: The bottom of the first inner cavity is provided with a sensing element that rotates synchronously with the first inner cavity, and the second inner cavity is provided with a sensor that is suitable for sensing the position change of the sensing element to perform counting; The second outer cavity has a built-in control circuit board, the second active end includes a second outer end surface suitable for closing the second outer cavity, and the second outer end surface is embedded with a display screen suitable for displaying a counting structure, a reset switch and an on-off switch.

10. The leg clamp according to claim 1, characterized in that: The support plate includes two symmetrically arranged wing plates, the two wing plates are suitable for forming a curved surface structure with a tendency to collapse, and the wing plates are provided with hollow portions.

Images