Arm exerciser

Abstract

The utility model discloses an arm exerciser which comprises a big arm assembly, a small arm assembly and a damping-adjustable hydraulic cylinder, the big arm assembly is used for being sleeved on a big arm, the small arm assembly is used for being sleeved on a small arm, the lower end of the big arm assembly is connected with the rear end of the small arm assembly in a rotating mode, and a cylinder body of the hydraulic cylinder is installed on the side face of the small arm assembly. One end of the piston rod is connected with the big arm assembly. The large arm assembly and the small arm assembly are each provided with at least one bandage used for fixing the large arm assembly and the small arm assembly to an arm. The portable fitness equipment is convenient to carry, exercise strength can be adjusted, and the risk that the fitness equipment slips out of the hand to be injured is avoided.

Description

Technical Field

[0001] The utility model relates to the field of sports equipment, in particular to an arm exerciser. Background Art

[0002] If people need to exercise their arms, they can generally use fitness equipment such as dumbbells, arm trainers or barbells. Although dumbbells and arm trainers can be carried, they may fall if they are not held properly during use, and there is a risk of hitting the user. Moreover, a set of dumbbells and arm trainers can only correspond to one strength. If exercises of different degrees of strength are required, multiple sets of dumbbells or multiple arm trainers are required, which are also inconvenient to carry. Barbells are even more difficult to carry and generally need to be used in special fitness venues.

[0003] At present, there is no arm training equipment on the market that is easy to carry, can adjust the training strength, and does not have the risk of slipping out of the hand and getting injured. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings, the utility model provides an arm exerciser which is easy to carry and can adjust the exercise strength.

[0005] The technical solution of the utility model is as follows:

[0006] An arm exerciser comprises an upper arm assembly, a lower arm assembly and a hydraulic cylinder with adjustable damping. The upper arm assembly is used to be mounted on the upper arm, and the lower arm assembly is used to be mounted on the lower arm. The lower end of the upper arm assembly is rotatably connected to the rear end of the lower arm assembly. The cylinder body of the hydraulic cylinder is installed on the side of the lower arm assembly, and one end of the piston rod is connected to the upper arm assembly. When a user wears the arm exerciser, the rotation connection point of the upper arm assembly and the lower arm assembly corresponds to the elbow position. When the lower arm is lifted upward, a certain force is required to lift it under the action of the hydraulic cylinder. Since the damping of the hydraulic cylinder is adjustable, the user can adjust the damping according to the actual needs by adjusting the force required for exercise.

[0007] Preferably, a positioning ring is provided at the front end of the small arm assembly, a rotating ring is provided inside the positioning ring, and a grip rod is provided inside the rotating ring along any diameter direction thereof.

[0008] Preferably, the grip rod is provided with a grip assembly, which includes at least one guide column and two oppositely arranged handles, the guide column vertically passes through the grip rod, one end of which is inserted into one handle, and the other end is connected to the other handle; a first spring is also sleeved on the guide column, and the two ends of the first spring are respectively connected to the two handles. When the user holds the handle with his hand, the first spring can be compressed through the gripping action, and the handles on both sides are close together. After loosening, the first spring will bounce the handles on both sides apart. Since this action requires a certain grip strength, repeated actions can also serve as an exercise.

[0009] Preferably, the two grips are arranged opposite to each other one above and one below, there are at least two guide posts, each grip comprises sleeve rods equal in number to the guide posts, one end of the guide post is connected to the sleeve rod corresponding to one of the grips, and the other end is inserted into the sleeve rod corresponding to the other grip;

[0010] The sleeve rod at the lower end of the upper grip is inserted into the grip, and the sleeve rod at the upper end of the lower grip is inserted into the grip, and at least the ends of the two outermost sleeve rods inserted into the grip are provided with a circle of transverse conical bosses;

[0011] The grip rod is a hollow rod, and a tightening piece is provided inside each of the two sides of the grip rod. The two tightening pieces are arranged opposite to each other, and the inner ends are provided with a circle of longitudinal conical bosses, and the outer ends pass through the rotating ring to contact the positioning ring;

[0012] The transverse conical bosses of the two outermost upper and lower sleeve rods respectively cooperate with the longitudinal conical bosses of the two tightening parts. When the upper and lower sleeve rods are close to each other, the conical surface of the transverse conical platform will squeeze the conical surface of the longitudinal conical boss, so that the two tightening parts move laterally outward. When tightened, the two tightening parts press the positioning ring outward, so that the rotating ring no longer rotates.

[0013] Preferably, a circle of grooves is opened inward on the outer wall of the rotating ring, and a headless screw is provided on the inner wall of the positioning ring. One end of the headless screw is in the groove, which enables the positioning ring and the rotating ring to rotate relative to each other on the one hand, and limit each other on the other hand. The user can rotate and adjust the direction after holding the handle to reach a comfortable angle for exercise.

[0014] Preferably, the forearm assembly includes two second brackets arranged opposite to each other, and two extension brackets are provided at the rear end of the positioning ring, each extension bracket is respectively mounted on the second bracket from front to back, and a row of several positioning holes are provided on the side of the second bracket, and two adjacent positioning holes are connected by a connecting groove whose width is smaller than the diameter of the positioning holes; when in use, the two second brackets are arranged on both sides of the forearm, and the palms hold the grip rod in the positioning ring.

[0015] The boom assembly includes two first brackets arranged opposite to each other, each of which is covered with a telescopic bracket from top to bottom, and a row of positioning holes are also provided on the side of the first bracket, and two adjacent positioning holes are also connected by a connecting groove with a width smaller than the diameter of the positioning hole. When in use, the two first brackets are arranged on both sides of the boom.

[0016] Preferably, a positioning button is provided in both the extension bracket and the telescopic bracket, the positioning button is perpendicular to the connecting groove, and the positioning button comprises a connected inner convex portion, a movable portion and an outer convex portion, the inner convex portion is located on the inner side of the first bracket / the second bracket, the diameter of the inner convex portion is larger than the groove width of the connecting groove and smaller than the diameter of the positioning hole; the diameter of the movable portion is smaller than the groove width of the connecting groove, and it can pass through the first bracket / the second bracket through the connecting groove or the positioning hole; the outer convex portion is located on the outer side of the first bracket / the second bracket and is embedded in the outer wall of the telescopic bracket / the extension bracket, and the outer convex portion is larger than the diameter of the positioning hole;

[0017] A second spring is also provided between the inner convex portion and the inner wall of the telescopic bracket / extension bracket. When the inner convex portion is at the position of any positioning hole, the second spring pushes the inner convex portion into the positioning hole, and by pressing the outer convex portion on the outside, the inner convex portion will be pressed out of the positioning hole. At this time, the movable portion is in the positioning hole, and sliding the telescopic bracket / extension bracket can make the movable portion of the positioning button enter the connecting groove. When the bracket continues to slide to the next positioning hole position, due to the loss of pressure, the second spring resets and bounces the inner convex portion into the positioning hole. Through this operation, the length between the top of the telescopic bracket and the bottom of the first bracket, as well as the length between the front end of the extension bracket and the rear end of the second bracket can be adjusted, that is, the overall length of the large arm assembly and the small arm assembly is adjusted.

[0018] Preferably, the rear end of the second bracket is connected to the lower end of the first bracket via a pin to achieve relative rotation therebetween.

[0019] Preferably, a row of adjustment holes is further provided on the side of the second bracket, and the adjustment holes on the second bracket are located behind all the positioning holes thereon, and a front end positioning rod is detachably connected to one of the adjustment holes, and the specific detachable connection method can be a screw connection, or a connection method such as the above-mentioned positioning button, which allows the position of the front section positioning rod to be detached and adjusted; a rear end positioning rod is provided on the outer side of the lower part of at least one of the first brackets;

[0020] The cylinder body of the hydraulic cylinder is provided with a front end ring, and the rear end of the piston rod is provided with a rear end ring. The front end ring is sleeved on the front end positioning rod, and the rear end ring is sleeved on the rear end positioning rod. When the user's arm is raised or lowered, the piston rod moves in the cylinder body.

[0021] Preferably, at least one strap is provided on the upper arm assembly and the lower arm assembly, and the strap can be installed on the two side brackets of the upper arm assembly and the lower arm assembly. When in use, the exerciser is tied to the upper arm and the lower arm through the strap, and the exerciser will not fall even if the hand releases the grip. The specific number and position can be set according to actual conditions to ensure that the arm exerciser is tied to the user's arm.

[0022] The beneficial effects of the utility model are:

[0023] The utility model has a simple structure and is easy to carry. When in use, the upper arm assembly is sleeved on the upper arm, and the lower arm assembly is sleeved on the lower arm. The relative rotation between the hydraulic cylinder and the upper and lower arm assemblies enables the user to perform actions similar to dumbbell curls. Since the hydraulic cylinder has adjustable damping, the user can adjust different degrees of strength to exercise according to his or her own needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be described by way of examples with reference to the accompanying drawings, in which:

[0025] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0026] Figure 2 It is a side view of the utility model;

[0027] Figure 3 It is the front view of the utility model;

[0028] Figure 4 It is a schematic diagram of the grip and the handle;

[0029] Figure 5 yes Figure 4 A magnified view of the part A in the middle;

[0030] Figure 6 It is a schematic diagram of the cooperation between the rotating ring and the positioning ring;

[0031] Figure 7 is a schematic diagram of the cooperation between the positioning button and the second bracket and the extension bracket;

[0032] Figure 8 is a schematic diagram of the second bracket;

[0033] Fig. 9 It is a schematic diagram of the boom assembly and the forearm assembly when they are opened. DETAILED DESCRIPTION

[0034] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0035] In the description of the utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0036] In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components; the fixed connection can be welding, screw connection, or adhesive connection. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0037] like Figure 1-9 The arm exerciser shown in the figure comprises a boom assembly 1, a forearm assembly 2 and a hydraulic cylinder 3 with adjustable damping, wherein the hydraulic cylinder with adjustable damping is an existing mature product and can be obtained through purchase, the boom assembly 1 is used to be mounted on the boom, and the forearm assembly 2 is used to be mounted on the forearm. Both the boom assembly 1 and the forearm assembly 2 are provided with at least one strap 6 for fixing them on the arm.

[0038] The front end of the small arm assembly 2 is provided with a positioning ring 20. Figure 6 As shown, a rotating ring 4 is provided inside the positioning ring 20, and a circle of grooves 42 are provided inwardly on the outer wall of the rotating ring 4. Two headless screws 41 are provided opposite to each other on the inner wall of the positioning ring 20, and the inner ends of the headless screws 41 are in the grooves 42. On the one hand, the positioning ring and the rotating ring can rotate relative to each other, and on the other hand, they can limit each other. After holding the handle, the user can rotate and adjust the direction to reach a comfortable angle for exercise. A handle 5 is provided inside the rotating ring 4 along any diameter direction thereof.

[0039] like Figure 4-5As shown, the gripping rod 5 is provided with a gripping assembly, which includes a plurality of guide columns 52 and two oppositely arranged grips 51. The two grips 51 are oppositely arranged one above and one below. The guide column 52 vertically passes through the gripping rod 5, one end of which is inserted into one grip 51, and the other end is connected to the other grip 51. Specifically, each grip 51 includes a number of sleeve rods 56 equal to the number of guide columns 52, one end of the guide column 52 is connected to the sleeve rod 56 corresponding to one of the grips 51, and the other end is inserted into the corresponding sleeve rod 56 on the other grip 51; the sleeve rod at the lower end of the upper grip 51 is inserted into the grip 5, and the sleeve rod at the upper end of the lower grip 51 is inserted into the grip 5, and the ends of the outermost sleeve rods 56 on both sides inserted into the grip 5 are provided with a circle of transverse conical bosses 54; the grip 5 is a hollow rod, and a tightening piece 55 is respectively provided inside the two sides of the grip 5, and the two tightening pieces 55 are arranged opposite to each other, and the inner ends are each provided with a circle of longitudinal conical bosses 57, and the outer ends pass through the rotating ring 4 to contact the positioning ring 20; the transverse conical bosses 54 of the upper and lower outermost sleeve rods 56 respectively cooperate with the longitudinal conical bosses 57 of the two tightening pieces 55.

[0040] A first spring 53 is sleeved on each guide column 52, and the two ends of the first spring 53 are respectively connected to the corresponding sleeve rods in the two grips 51. When the user holds the grip with his hand, the first spring can be compressed by the gripping action, and the grips on both sides are close to each other. After loosening, the first spring will bounce the grips on both sides apart. This action requires a certain gripping force, and repeated actions can also serve as exercise. When the upper and lower sleeve rods are close, the conical surface of the transverse conical platform will squeeze the conical surface of the longitudinal conical boss, so that the two tightening members move outward laterally. When holding tightly, the outer ends of the two tightening members press against the positioning ring, so that the rotating ring no longer rotates. In order to ensure stability during the pressing, a friction plate can also be set at the position of the positioning ring corresponding to the tightening member. When the outer end of the tightening member presses against the friction plate, the stability is better.

[0041] The arm assembly 2 includes two second brackets 21 arranged opposite to each other, and two extension brackets 22 are arranged at the rear end of the positioning ring 20, each extension bracket 22 is respectively sleeved on the second bracket 21 from front to back. Figure 7-8 As shown, a row of positioning holes 13 are provided on the side of the second bracket 21, and two adjacent positioning holes 13 are connected by a connecting groove with a width smaller than the diameter of the positioning hole; when in use, the two second brackets are arranged on both sides of the forearm, and the palms hold the grip in the positioning ring. The upper arm assembly 1 includes two first brackets 11 arranged opposite to each other, each first bracket 11 is sleeved with a telescopic bracket 12 from top to bottom, and a row of positioning holes 13 are also provided on the side of the first bracket 11, and two adjacent positioning holes 13 are also connected by a connecting groove with a width smaller than the diameter of the positioning hole. When in use, the two first brackets are arranged on both sides of the upper arm.

[0042] A positioning button is provided in both the extension bracket 22 and the telescopic bracket 12. The positioning button is perpendicular to the connecting groove. The positioning button includes a connected inner convex portion 14, a movable portion 15 and an outer convex portion 16. The inner convex portion 14 is located on the inner side of the first bracket 11 / the second bracket 21. The diameter of the inner convex portion is larger than the groove width of the connecting groove and smaller than the diameter of the positioning hole 13; the diameter of the movable portion 15 is smaller than the groove width of the connecting groove, and it can pass through the first bracket 11 / the second bracket 21 through the connecting groove or the positioning hole; the outer convex portion 16 is located on the outer side of the first bracket 11 / the second bracket 21 and is embedded in the outer wall of the telescopic bracket 12 / the extension bracket 22, and the outer convex portion 16 is larger than the diameter of the positioning hole 13. A second spring 17 is also provided between the inner convex portion 14 and the inner wall of the telescopic bracket 12 / extension bracket 22. When the inner convex portion is at the position of any positioning hole, the second spring pushes the inner convex portion into the positioning hole, and by pressing the outer convex portion on the outside, the inner convex portion will be pressed out of the positioning hole. At this time, the movable portion is in the positioning hole, and sliding the telescopic bracket / extension bracket can make the movable portion of the positioning button enter the connecting groove. When the bracket continues to slide to the next positioning hole position, due to the loss of pressure, the second spring resets and bounces the inner convex portion into the positioning hole. Through this operation, the length between the top of the telescopic bracket to the bottom of the first bracket and the length between the front end of the extension bracket to the rear end of the second bracket can be adjusted, that is, the overall length of the upper arm assembly and the lower arm assembly are adjusted.

[0043] The straps can be installed on the first bracket, the second bracket, the telescopic bracket and / or the extension bracket on both sides, and then tied tightly to the upper arm and the forearm. Even if the hand releases the grip, the exerciser will not fall off. The specific number and position can be set according to actual conditions to ensure that the arm exerciser is tied to the user's arm.

[0044] The rear end of the second bracket 21 is connected to the lower end of the first bracket 11 via a pin to achieve relative rotation therebetween. Figure 8 As shown, a row of adjustment holes 23 are also provided on the side of the second bracket 21, and the adjustment holes on the second bracket 21 are located behind all the positioning holes 13 thereon, and a front end positioning rod 24 is detachably connected in one of the adjustment holes 23, and the specific detachable connection method can be screw connection, or the connection method of the positioning button mentioned above, which allows the position of the front segment positioning rod to be disassembled and adjusted; a rear end positioning rod 18 is provided on the lower outer side of at least one first bracket 11. A front end collar 33 is provided on the cylinder body 31 of the hydraulic cylinder 3, and a rear end collar 34 is provided on the rear end of the piston rod 32, the front end collar 33 is sleeved on the front end positioning rod 24, and the rear end collar 34 is sleeved on the rear end positioning rod 18, and the piston rod moves in the cylinder body by lifting or lowering the user's arm.

[0045] The lower end of the upper arm assembly 1 is rotatably connected to the rear end of the lower arm assembly 2, the cylinder body 31 of the hydraulic cylinder 3 is installed on the side of the lower arm assembly 2, and one end of the piston rod 32 is connected to the upper arm assembly 1. When the user wears the arm exerciser, the rotation connection point of the upper arm assembly and the lower arm assembly corresponds to the elbow position. When the forearm is lifted upward, a certain force is required to lift it under the action of the hydraulic cylinder. Since the damping of the hydraulic cylinder is adjustable, the user can adjust the damping according to the actual needs to adjust the force required for exercise.

[0046] The above is based on the enlightenment of this utility model. Through the above description, relevant staff can make various changes and modifications without deviating from the technical idea of ​​this utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An arm exerciser, characterized in that: The invention comprises a boom assembly (1), a forearm assembly (2) and a hydraulic cylinder (3) with adjustable damping, wherein the lower end of the boom assembly (1) is rotatably connected to the rear end of the forearm assembly (2), a cylinder body (31) of the hydraulic cylinder (3) is mounted on the forearm assembly (2), one end of a piston rod (32) is connected to the boom assembly (1), a positioning ring (20) is provided at the front end of the forearm assembly (2), a rotating ring (4) is provided inside the positioning ring (20), and a gripping rod (5) is provided inside the rotating ring (4) along any diameter direction thereof.

2. The arm exerciser according to claim 1, characterized in that: The gripping rod (5) is provided with a gripping assembly, which comprises at least one guide column (52) and two gripping handles (51) arranged opposite to each other. The guide column (52) vertically passes through the gripping rod (5), one end of which is inserted into one gripping handle (51) and the other end is connected to the other gripping handle (51). A first spring (53) is also sleeved on the guide column (52), and the two ends of the first spring (53) are respectively connected to the two gripping handles (51).

3. The arm exerciser according to claim 2, characterized in that: Two grips (51) are arranged opposite to each other one above the other, there are at least two guide posts (52), each grip (51) comprises sleeve rods (56) equal in number to the guide posts (52), one end of the guide post (52) is connected to the sleeve rod (56) corresponding to one of the grips (51), and the other end is inserted into the sleeve rod (56) corresponding to the other grip (51); The sleeve rod at the lower end of the upper handle (51) is inserted into the handle (5), the sleeve rod at the upper end of the lower handle (51) is inserted into the handle (5), and at least the ends of the two outermost sleeve rods (56) inserted into the handle (5) are provided with a circle of transverse conical bosses (54); The gripping rod (5) is a hollow rod, and a tightening member (55) is provided inside each of the two sides of the gripping rod (5). The two tightening members (55) are arranged opposite to each other, and each inner end is provided with a circle of longitudinal conical bosses (57), and the outer end passes through the rotating ring (4) to contact the positioning ring (20); The transverse conical bosses (54) of the two outermost upper and lower sleeve rods (56) respectively cooperate with the longitudinal conical bosses (57) of the two pressing members (55).

4. The arm exerciser according to claim 1, characterized in that: A groove (42) is formed inwardly on the outer wall of the rotating ring (4), and a headless screw (41) is provided on the inner wall of the positioning ring (20). One end of the headless screw (41) is in the groove (42).

5. The arm exerciser according to claim 1, characterized in that: The small arm assembly (2) comprises two second brackets (21) arranged opposite to each other, and two extension brackets (22) are arranged at the rear end of the positioning ring (20), each extension bracket (22) is respectively sleeved on the second bracket (21) from front to back, a row of positioning holes (13) is provided on the side of the second bracket (21), and two adjacent positioning holes (13) are connected by a connecting groove with a width smaller than the diameter of the positioning hole; the large arm assembly (1) comprises two first brackets (11) arranged opposite to each other, each first bracket (11) is sleeved with a telescopic bracket (12) from top to bottom, a row of positioning holes (13) is also provided on the side of the first bracket (11), and two adjacent positioning holes (13) are also connected by a connecting groove with a width smaller than the diameter of the positioning hole.

6. The arm exerciser according to claim 5, characterized in that: A positioning button is provided in both the extension bracket (22) and the telescopic bracket (12), the positioning button being perpendicular to the connection groove, the positioning button comprising a connected inner convex portion (14), a movable portion (15) and an outer convex portion (16), the inner convex portion (14) being located on the inner side of the first bracket (11) / the second bracket (21), the diameter of the inner convex portion being greater than the groove width of the connection groove and less than the diameter of the positioning hole (13); the diameter of the movable portion (15) being less than the groove width of the connection groove, and being able to pass through the first bracket (11) / the second bracket (21) through the connection groove or the positioning hole; the outer convex portion (16) being located on the outer side of the first bracket (11) / the second bracket (21) and being embedded in the outer wall of the telescopic bracket (12) / the extension bracket (22), and the diameter of the outer convex portion (16) being greater than the diameter of the positioning hole (13); A second spring (17) is also provided between the inner convex portion (14) and the inner wall of the telescopic bracket (12) / extension bracket (22).

7. The arm exerciser according to claim 5, characterized in that: The rear end of the second bracket (21) is connected to the lower end of the first bracket (11) via a pin shaft.

8. The arm exerciser according to claim 5, characterized in that: A row of adjustment holes (23) is also provided on the side of the second bracket (21), and the adjustment holes on the second bracket (21) are located behind all the positioning holes (13) thereon, and a front end positioning rod (24) is detachably connected to one of the adjustment holes (23); a rear end positioning rod (18) is provided on the outer side of the lower part of at least one of the first brackets (11); a front end collar (33) is provided on the cylinder body (31) of the hydraulic cylinder (3), and a rear end collar (34) is provided at the rear end of the piston rod (32); the front end collar (33) is sleeved on the front end positioning rod (24), and the rear end collar (34) is sleeved on the rear end positioning rod (18).

9. The arm exerciser according to claim 1, characterized in that: At least one binding strap (6) is provided on each of the upper arm assembly (1) and the lower arm assembly (2).

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