Fitness device capable of adjusting resistance

Abstract

The utility model relates to a resistance-adjustable body builder, which comprises two connecting arms and two supporting plates, the first ends of the two connecting arms are rotatably connected together, a torsion spring is arranged at the joint, the second ends of the two connecting arms are respectively provided with one supporting plate, and the second ends of the connecting arms are provided with resistance adjusting components; the resistance adjusting assembly comprises a lifting reducing piece and a rotary knob, the torsional spring is arranged on the reducing piece in a sleeving mode, one end of the reducing piece abuts against the rotary knob, the rotary knob is in threaded fit with the reducing piece, and a limiting piece making contact with the connecting arm is arranged on the reducing piece. According to the resistance-adjustable body builder provided by the utility model, the length of the elastic deformation part of the torsion spring can be adjusted through the lifting of the reducing piece, the torsion of the torsion spring can be adjusted, and the resistance between the two connecting arms can meet different use requirements of different users.

Description

TECHNICAL FIELD

[0001] The utility model relates to body-building equipment technical field especially relates to a kind of adjustable resistance body-building equipment. BACKGROUND

[0002] The pelvic floor muscle group is the important muscle group for maintaining the normal physiological position of pelvic organs and realizing its normal physiological function. In order to exercise this part of muscle group, the pelvic floor muscle trainer emerges as the times require. The current trainer for training pelvic floor muscle includes two hinged connecting frames, a torsional spring is arranged between the two connecting frames, and a fitting plate is arranged on the free end of the connecting frame to fit the leg of the human body. During training, the fitting plate is fitted on the leg of the human body, and the connecting frame swings back and forth under the clamping action of the two legs.

[0003] However, different people have different pelvic floor muscle strength, and thus need different resistance trainers to achieve better training effect. At the same time, as the user continuously uses, the pelvic floor muscle strength is continuously improved, and a pelvic floor muscle trainer with larger resistance is needed to be used for training to achieve the purpose of further improving the pelvic floor muscle strength. However, the resistance of the conventional pelvic floor muscle trainer is not adjustable, and thus the above purpose cannot be achieved. SUMMARY

[0004] The utility model discloses a kind of adjustable resistance body-building equipment to solve the above problem, the technical scheme used is: a kind of adjustable resistance body-building equipment, comprising: two connecting arms and two supporting plates, the first end of two The connecting arm is rotatably connected together, and torsional spring is arranged at the connecting place, the second end of two The connecting arm is respectively equipped with one The supporting plate, resistance adjustment assembly is arranged at the second end of the connecting arm;

[0005] The resistance adjustment assembly comprises a knob and a liftable variable diameter piece, the torsional spring is sleeved on the variable diameter piece, the part of the variable diameter piece at least in contact with the torsional spring is tapered with continuously changing diameter, the knob is threadedly connected with the variable diameter piece, when the knob is rotated in different directions, the variable diameter piece is raised or lowered, and the variable diameter piece is provided with a limiting piece in contact with the connecting arm, so that the variable diameter piece rotates with the connecting arm.

[0006] Further improvement is that the part of the knob in contact with the connecting arm is provided with a protrusion and a recess matched with each other.

[0007] Further improvement is that the bottom outer periphery of the knob is provided with a step piece, the step piece is provided with a protrusion or a recess, and the connecting arm in contact with the step piece is provided with a matching structure matched with the protrusion or the recess on the step piece.

[0008] Further improvement is that a guide column is arranged in the connecting arm corresponding to the bottom end of the variable diameter piece, and the bottom end of the variable diameter piece is sleeved on the guide column.

[0009] Further improvement is that the limiting member is a limiting protrusion, and a longitudinal limiting groove is arranged on the corresponding connecting arm;

[0010] Alternatively, the limiting member is a longitudinal limiting slot or limiting hole, and a limiting protrusion is arranged on the corresponding connecting arm and extends into the limiting member.

[0011] The beneficial effects of the utility model are:

[0012] The adjustable resistance fitness equipment provided by the utility model realizes the adjustment of the length of the elastic deformation part of the torsional spring through the lifting of the variable diameter piece, realizes the adjustment of the torsional force of the torsional spring, and further makes the resistance between the two connecting arms meet different use requirements of different users. BRIEF DESCRIPTION OF DRAWINGS

[0013] The utility model will be further described below in combination with the drawings and embodiments.

[0014] Figure 1 is the structure schematic diagram of the adjustable resistance fitness equipment of the utility model;

[0015] Figure 2 is the structure schematic diagram of the resistance adjustment assembly of the utility model;

[0016] Figure 3 is the knob structure schematic diagram of the utility model;

[0017] Figure 4 is the variable diameter piece side surface structure schematic diagram of the utility model;

[0018] Figure 5 is the variable diameter piece structure schematic diagram of the utility model;

[0019] Figure 6 is the connecting arm inside structure schematic diagram of the utility model. DETAILED DESCRIPTION

[0020] The utility model will be further described below in combination with the drawings and embodiments.

[0021] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0022] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise explicitly and specifically limited.

[0023] In the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0024] As shown in Figure 1 and Figure 2 The utility model provides a kind of adjustable resistance fitness equipment, two connecting arms 1 and two supporting plates 2, two described connecting arms 1 are connected together by torsion spring 3, one end is first end, oppositely, the other end of connecting arm 1 is second end, the first end 11 of two described connecting arms 1 is rotatably connected together, and the second end 12 of two described connecting arms 1 is respectively equipped with one described supporting plate 2, and torsion spring 3 is equipped at connecting place, the fitness equipment is not applied external force, under the elastic force of torsion spring 3, the second end of two described first connecting arms 1 opens to both sides, presents "eight" type;When external force is applied to supporting plate 2, with the increasing of external force, two described connecting arms 1 rotate around first end connecting place, and two supporting plates 2 are close to each other.The second end 12 of described connecting arm 1 is equipped with resistance adjustment assembly 4;

[0025] As shown in Figure 2As shown, the resistance adjusting assembly 4 comprises a liftable variable diameter part 41 and a knob 42, the torsion spring 3 is sleeved on the variable diameter part 41, and the extension parts at both ends of the torsion spring 3 are respectively connected with a connecting arm 1, when the two connecting arms 1 are clamped under the action of external force, the part between both ends of the torsion spring 3 will elastically deform to reduce the diameter, when the external force is removed, the torsion spring 3 will restore to the original state, and the part of the variable diameter part 41 at least in contact with the torsion spring 3 is a taper type with continuously changing diameter, which can be a positive taper type or an inverted taper type. Figure 3 As shown, the longitudinal section of the knob 42 is substantially in T shape, and the vertical part is provided with external threads, the knob 42 is in threaded cooperation with the variable diameter part 41.

[0026] As shown, Figure 4 and Figure 5 As shown, the longitudinal section of the variable diameter part 41 is substantially in T shape, the vertical part is a variable diameter part and is a hollow structure, and the inner wall of the hollow structure is provided with internal threads matched with the external threads on the knob 42, the horizontal part of the variable diameter part 41 is a functional table surface, the bottom surface of the knob 42 is in abutment with the functional table surface and interacts with each other, and the edge of the horizontal functional table surface is provided with an upward extending wall 412, the wall 412 is in clearance cooperation with the connecting arm 1, and the wall 412 and the vertical structure in the connecting arm 1 cooperate to realize the guiding effect in the lifting process of the variable diameter part 41.

[0027] When the resistance needs to be adjusted in use of the body builder, the knob 42 is screwed to make the variable diameter part 41 lift or drop, and then the part of the torsion spring 3 in abutment with the variable diameter part 41 is longer, that is, the part of the torsion spring 3 capable of elastically deforming to reduce the diameter is shorter, and then the elastic force of the torsion spring 3 is larger, so that the resistance is larger when the two connecting arms 1 are clamped.

[0028] In order to avoid the change of resistance caused by the different rotation of the knob 42 and the variable diameter part 41 in use, the variable diameter part 41 is provided with a limiting part 5 in contact with the connecting arm 1, the limiting part 5 is used for keeping the rotation of the variable diameter part 41 with the rotation of the connecting arm 1, and does not limit the up and down movement of the variable diameter part 41.

[0029] The body builder with adjustable resistance provided by the utility model realizes the adjustment of the length of the part of the torsion spring capable of elastically deforming, realizes the adjustment of the torsion force of the torsion spring, and then the resistance between the two connecting arms can meet the different use requirements of different users.

[0030] As Figure 2 shown, in order to avoid the rotation of the knob 42 and the variable diameter piece 41 during use, the further improvement of the present technical solution is that the part of the knob 42 in contact with the connecting arm 1 is provided with a protrusion and a recess 421 that match each other. The protrusion or recess can be circumferentially arranged, and the protrusion on the knob 42 can be embedded in the recess or protrusion at the corresponding position on the connecting arm 1. This design can avoid the relative rotation of the knob and the variable diameter piece during use, and when adjusting the resistance, the protrusion can provide clear vibration feedback when sliding in and out of the recess, so that the fitness equipment has a more excellent user experience.

[0031] As Figure 3 shown, in order to fix the knob and avoid the relative rotation of the knob and the variable diameter piece during use, the further improvement of the present technical solution is that the bottom of the knob 42 is provided with a transversely extending step part 422, and the step part 422 is arranged in the transversely open clamping groove 14 arranged on the inner periphery of the connecting arm 1. The upper surface of the step part 422 is provided with a protrusion or recess 421, and the connecting arm 1 in contact with the step part 422 is provided with a matching structure 13 (as Figure 6 shown) that matches the protrusion or recess 421 on the step part 422. The matching structure 13 is: if the step part 422 is a protrusion, the matching structure 13 is a recess; if the step part 422 is a recess, the matching structure 13 is a protrusion. Whether it is a protrusion or a recess, there are multiple and circumferentially distributed.

[0032] As Figure 2 shown, in order to avoid the inclination of the variable diameter piece 41 and make the movement up and down more smoothly, the further improvement of the present technical solution is that the bottom end of the variable diameter piece 41 is provided with a vertically extending guide column 6 in the connecting arm 1, and the bottom of the variable diameter piece 41 is provided with a blind hole extending upward from the bottom end. The variable diameter piece 41 is sleeved on the guide column 6 through the blind hole, and the guide column 6 is designed as hollow.

[0033] As Figure 2 shown, the further improvement is that the limiting part 5 is a limiting protrusion, and the connecting arm 1 corresponding to the limiting protrusion is provided with a strip-shaped limiting recess extending longitudinally along the central axis direction of the variable diameter piece 41. The limiting protrusion is embedded in the limiting recess, so that the variable diameter piece can rotate with the connecting arm when the connecting arm rotates.

[0034] Alternatively, the limiting part 5 is a strip-shaped limiting groove or limiting hole extending longitudinally along the central axis direction of the variable diameter piece 41, and the connecting arm 1 is provided with a limiting protrusion extending into the limiting part 5.

[0035] With the above ideal embodiment of the present application as the inspiration, through the above description, relevant staff can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the content of the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. An exercise machine having an adjustable resistance, comprising: The utility model relates to a resistance adjustable connecting arm for a robot, which comprises: two connecting arms and two supporting plates, the first ends of the two connecting arms are rotatably connected together, a torsional spring is arranged at the connection, the second ends of the two connecting arms are respectively provided with a supporting plate, a resistance adjusting assembly is arranged at the second ends of the connecting arms; the resistance adjusting assembly comprises a knob and a liftable variable diameter piece, the torsional spring is sleeved on the variable diameter piece, the part of the variable diameter piece in contact with the torsional spring is a taper with continuously changing diameter, the knob is in threaded cooperation with the variable diameter piece, when the knob is rotated in different directions, the variable diameter piece is lifted or lowered, a limiting piece is arranged on the variable diameter piece and in contact with the connecting arm, so that the variable diameter piece rotates together with the connecting arm.

2. The adjustable resistance exercise machine of claim 1 wherein, the part of the knob in contact with the connecting arm is provided with a convex and a concave in mutual cooperation.

3. The adjustable resistance exercise machine of claim 2 wherein, a step piece is arranged on the outer periphery of the bottom of the knob, the step piece is provided with a convex or a concave, and the connecting arm in contact with the step piece is provided with a cooperation structure matched with the convex or the concave on the step piece.

4. The adjustable resistance exercise machine of claim 1 wherein, a guide column is arranged in the connecting arm corresponding to the bottom end of the variable diameter piece, and the bottom end of the variable diameter piece is sleeved on the guide column.

5. The adjustable resistance exercise machine of claim 1 wherein, the limiting piece is a limiting convex, and a longitudinal limiting groove is arranged on the connecting arm corresponding to the limiting convex; alternatively, the limiting piece is a longitudinal limiting slot or a limiting hole, and a limiting convex is arranged on the connecting arm and extends into the limiting piece.

Images