CN211486358U

CN211486358U - Arm strength exerciser

Info

Publication number: CN211486358U
Application number: CN202020053844.3U
Authority: CN
Inventors: 胡红阳
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-11
Filing date: 2020-01-11
Publication date: 2020-09-15
Anticipated expiration: 2030-01-11

Abstract

The utility model belongs to the technical field of body-building apparatus, in particular to strength of arm, including the mount pad, be provided with pneumatic cylinder and two sets of rocking arms on the mount pad, be provided with the piston rod in the pneumatic cylinder, the rocking arm rotates through the pivot and sets up on the mount pad, is provided with fan-shaped gear portion on the rocking arm, and the axle center and the rocking arm center of rotation of fan-shaped gear portion coincide, be provided with on the piston rod with fan-shaped gear portion complex rack portion, when the strength of arm uses, user drive rocking arm rotates to slide in the pneumatic cylinder through fan-shaped gear portion drive piston rod, an object of the utility model is to provide a conveniently adjust the strength of arm that resistance size just can.

Description

Arm strength exerciser

Technical Field

The utility model belongs to the technical field of body-building apparatus, in particular to strength of arm.

Background

People pay more attention to the health in the day before, and are more active to exercise. Among them, arm exercise is particularly important. The existing body-building products aiming at the arm in the market mainly comprise a dumbbell, a chest expander, an arm expander and the like.

The arm power device generally comprises rocker arms and a spring/oil cylinder, wherein initially, the two rocker arms of the arm power device are in a state of being opened towards two sides, a user holds the two rocker arms by hands and applies external force to enable the two rocker arms to rotate inwards and to be closed, and the exercise effect is achieved by repeatedly driving the rocker arms. For example, the safety arm exerciser disclosed in chinese patent No. ZL201611211105.7 can effectively exercise the arm exerciser used in the exercise. But it has the problem of uneven application of force in actual use: the user is when taking exercise and pressing the in-process of rocking arm, and it is hard when having the initial drive rocking arm, and is close to more when two rocking arms, and the drive rocking arm draws close more laborsaving problem. The main reasons for the above problems are: because a four-bar mechanism is adopted between the rocker arm and the piston rod of the oil cylinder, the force arm of the rocker arm can be changed continuously in the using process, thereby leading the resistance of the rocker arm to be changed continuously.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model aims at providing a conveniently adjust the resistance size and can reset the strength of arm of rocking arm safely.

The purpose of the utility model is realized like this:

the utility model provides an arm strength device, includes the mount pad, is provided with pneumatic cylinder and two sets of rocking arms on the mount pad, is provided with the piston rod in the pneumatic cylinder, the rocking arm rotates through the pivot to set up on the mount pad, is provided with fan-shaped gear portion on the rocking arm, and the axle center and the rocking arm center of rotation coincidence of fan-shaped gear portion are provided with on the piston rod with fan-shaped gear portion complex rack portion, and when the arm strength device used, the user driven rocking arm rotated to slide in the pneumatic cylinder through fan-shaped gear portion drive piston rod.

Preferably, the mounting seat comprises a mounting plate, the sector gear part and the rack part are hidden in the mounting plate, a hoop part is arranged on the mounting plate, and the hoop part is tightly clasped on the hydraulic cylinder, so that the hydraulic cylinder is fixed on the mounting seat.

Preferably, the two sides of the piston rod are symmetrically provided with rack parts, and the sector gear parts on the two groups of rocker arms are respectively connected with the rack parts on the two sides of the piston rod, so that the two groups of rocker arms move synchronously.

Preferably, the mounting seat is provided with an accommodating cavity, one end of the piston rod is arranged in the hydraulic cylinder in a penetrating mode, and the other end of the piston rod is hidden in the accommodating cavity.

Preferably, the hydraulic cylinder comprises a cylinder body, an adjusting piece is arranged on the cylinder body, the adjusting piece adjusts the flow rate of hydraulic oil in the cylinder body, so that the resistance force applied to the piston rod in the moving process is adjusted, the adjusting piece is fixedly connected with the mounting seat, and when the hydraulic cylinder is used, the cylinder body is controlled to enable the cylinder body and the adjusting piece to move relatively, so that the flow rate of the hydraulic oil in the cylinder body is adjusted.

Preferably, the hydraulic cylinder comprises a backflow piece, hydraulic oil in the cylinder body flows through the backflow piece in the using process of the arm power device, a flow guide groove with a gradually reduced cross section is formed in the adjusting piece, the flow guide groove and the hydraulic cylinder are combined to form an oil line pipeline communicated with the backflow piece, and when the flow speed of the hydraulic oil in the hydraulic cylinder is adjusted, the backflow piece is connected with the flow guide groove at different positions, so that the minimum cross section area of the oil line pipeline is changed, and the flow speed of the hydraulic oil is controlled.

Preferably, the adjusting part is rotatably arranged in the cylinder body, the diversion groove is formed in a C-shaped mode and surrounds the adjusting part, and when the backflow part is used, the cylinder body and the adjusting part are driven to rotate relatively, so that the backflow part is connected with the diversion groove at different positions.

Preferably, the cylinder body is fixedly arranged with the backflow piece, and the cylinder body is arranged in the backflow piece in a penetrating mode.

Preferably, the piston rod is provided with a supporting plate, the supporting plate is provided with a through hole, one end of the supporting plate is provided with an elastic sealing sheet, when the arm power exerciser is used for exercise, hydraulic oil drives the sealing sheet to abut against the through hole for sealing, and the sealing sheet drives the hydraulic oil to flow back through the backflow piece; when the control arm strength device resets, hydraulic oil drives the sealing element to deform through the through hole, so that the hydraulic oil can flow back through the through hole.

Preferably, the piston rod is provided with an elastic member, and the elastic member abuts against the sealing sheet to enable the sealing sheet to be in close contact with the support plate.

Compared with the prior art, the utility model outstanding and profitable technological effect is:

1. the rocking arm rotates through the pivot and sets up on the mount pad, be provided with fan-shaped gear portion on the rocking arm, the axle center and the rocking arm center of rotation coincidence of fan-shaped gear portion, be provided with on the piston rod with fan-shaped gear portion complex rack portion, when the strength of arm uses, user's drive rocking arm rotates, and slide in the pneumatic cylinder through fan-shaped gear portion drive piston rod, through fan-shaped gear portion drive piston rod motion in this structure, the length of stretching into/retraction in the pneumatic cylinder of fan-shaped gear turned angle and piston rod is the scaling so, in the uniform velocity motion in-process of rocking arm, the resistance of pneumatic cylinder keeps unchangeable, and the arm of force of interaction force remains unchanged throughout between fan-shaped gear portion and the piston rod, avoid appearing the great and follow-up less problem of resistance of the in. The process of pressing the rocker arm by a user is stressed evenly through the structure, and the arm strength is exercised more effectively.

2. The mounting seat comprises a mounting plate, the fan-shaped gear part and the rack part are hidden in the mounting plate, clothes are prevented from entering between the fan-shaped gear part and the rack part, and therefore accidental damage is caused, the mounting plate is provided with the hoop part, and the hoop part is tightly held on the hydraulic cylinder, so that the hydraulic cylinder is fixed on the mounting seat, and the hydraulic cylinder is convenient to fixedly mount; be provided with on the mount pad and accept the chamber, piston rod one end is worn to establish in the pneumatic cylinder, and the piston rod other end is hidden to be set up in accepting the chamber, thereby avoids in the use piston rod to expose and lead to debris to get into in the rack portion, influence the normal use of strength of arm.

3. This the utility model discloses a control cylinder body makes cylinder body and regulating part take place relative motion, and the user can direct one-hand gripping at the cylinder body and rotate the velocity of flow of hydraulic oil in the cylinder body with the regulation cylinder body to realize adjusting piston rod and stretch into the size of the required dynamics in the cylinder body, the user can quick adjustment let the operation more convenient. And the cylinder body is towards rocking arm one side, reduces the whole length of strength of arm, makes things convenient for the packing storage, and avoids removing the mistake in the transportation and touching.

Drawings

Fig. 1 is a schematic structural view of the utility model;

fig. 2 is one of the cross-sectional views of the present invention;

fig. 3 is a second cross-sectional view of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a schematic structural view of the adjusting member of the present invention;

fig. 6 is a cross-sectional view of the position of the guiding groove on the adjusting member of the present invention.

The reference numbers in the figures mean: 1-mounting a base; 2-a rocker arm; 3-a hydraulic cylinder; 4-shaft sleeve; 11-a mounting plate;

12-a hoop part; 13-a containing cavity; 21-a sector gear portion; 31-an adjustment member; 32-rack portion; 33-a piston rod;

34-an upper cover; 35-a cylinder body; 36-a return piece; 37-a support plate; 38-sealing plate; 39-an elastic member;

311-diversion trench; 312-a connecting trough; 341-first flowback orifice; 351-second reflow hole.

Detailed Description

The invention will be further described in the following with reference to the accompanying drawings in which:

referring to fig. 1 to 6, an arm force device includes a mounting base 1, a hydraulic cylinder 3 and two sets of rocker arms 2 are arranged on the mounting base 1, a piston rod 33 is arranged in the hydraulic cylinder 3, the rocker arms 2 are rotatably arranged on the mounting base 1 through a rotating shaft, a sector gear part 21 is arranged on the rocker arms 2, the axis of the sector gear part 21 coincides with the rotating center of the rocker arms 2, a rack part 32 matched with the sector gear part 21 is arranged on the piston rod 33, when the arm force device is used, a user drives the rocker arms 2 to rotate and drives the piston rod 33 to slide in the hydraulic cylinder 3 through the sector gear part 21, in the structure, the piston rod 33 is driven by the sector gear part 21 to move, during the uniform motion of the rocker arms 2, the flow rate of hydraulic oil in the hydraulic cylinder 3 is constant, so that the resistance provided by the hydraulic cylinder 3 is constant, and the arm of the, avoid the exercise effect to be influenced by the large initial resistance and the small follow-up resistance of the arm strength device in the exercise process.

The rack parts 32 are symmetrically arranged on two sides of the piston rod 33, and the sector gear parts 14 on the two groups of rocker arms 2 are respectively connected with the rack parts 32 on two sides of the piston rod 33, so that the two groups of rocker arms 2 synchronously move, and a user can conveniently exercise both arms.

Mounting base 1 includes mounting panel 11, and fan-shaped gear portion 21 hides with rack portion 32 and sets up in mounting panel 11, in this embodiment mounting base 1 includes two sets of mounting panel 11 that can dismantle the setting, and fan-shaped gear portion 21 hides with rack portion 32 and sets up between two sets of mounting panels 11, and is provided with on mounting panel 11 and embraces hoop portion 12, and two sets of hooping portions 12 embrace tightly on pneumatic cylinder 3 to make pneumatic cylinder 3 fix on mounting base 1.

Preferably be provided with on the mount pad 1 and accept chamber 13, piston rod 33 one end is worn to establish in pneumatic cylinder 3, and the piston rod 33 other end is hidden to be set up in accepting chamber 13, thereby avoids exposing in the use piston rod 33 to lead to during debris gets into rack portion 32, influence the normal use of strength of arm.

The hydraulic cylinder 3 comprises a cylinder body 35, an adjusting piece 31 is arranged on the cylinder body 35, the flow rate of hydraulic oil in the cylinder body 35 is adjusted by the adjusting piece 31, so that resistance received by a piston rod 33 in the movement process is adjusted, in the embodiment, the adjusting piece 31 is fixedly connected with the mounting seat 1, when the hydraulic cylinder is used, the cylinder body 35 is controlled to enable the cylinder body 35 and the adjusting piece 31 to move relatively, the diameter of a minimum flow passage passing through the hydraulic oil in the movement process of the hydraulic oil in the cylinder body 35 is adjusted, the fastest flow rate change of the hydraulic oil under the same movement rate of the rocker arm 2 is changed, the resistance change provided by the hydraulic cylinder 3 under the same movement rate of the rocker arm 2 is realized, the hydraulic cylinder 3 is large in size, and.

The hydraulic cylinder 3 comprises a backflow part 36, in the use process of the arm force device, hydraulic oil in the cylinder body 35 flows through the backflow part 36, a guide groove 311 with a gradually reduced cross section is arranged on the adjusting part 31, the guide groove 311 and the hydraulic cylinder 3 are combined to form an oil path pipeline communicated with the backflow part 36, when the flow rate of the hydraulic oil in the hydraulic cylinder 3 is adjusted, the backflow part 36 is controlled to be connected with different positions of the guide groove 311, so that the minimum cross-sectional area of the oil path pipeline changes, and further the flow rate of the hydraulic oil is controlled, in the embodiment, a connecting groove 312 is preferably arranged on the adjusting part 31, the connecting groove 312 is connected with one end with the largest cross section of the guide groove 311, a first backflow hole 341 connected with the oil path pipeline is arranged on the cylinder body 35, the cross section of the connecting groove 312 and the cross section of the first backflow hole 341 are both larger than the largest, the resistance range of the arm strength device is enlarged.

The utility model discloses it is preferred regulating part 31 rotates and sets up in cylinder body 35, and guiding gutter 311 is C type ring around on regulating part 31, during the use, drive cylinder body 35 and regulating part 31 rotate relatively, make backward flow piece 36 be connected with the different positions of guiding gutter 311, and the rotating-structure is convenient for produce the installation, and avoids cylinder body 35 and regulating part 31 relative motion in-process cylinder body 35 inner chamber to change to influence the hydraulic pressure size in the cylinder body 35.

Preferably, the cylinder 35 is fixedly disposed with the backflow member 36, and the cylinder 35 is inserted into the backflow member 36, in this embodiment, the cylinder 35 is preferably integrally disposed in the backflow member 36, a second backflow hole 351 communicating with the backflow member 36 is disposed at a lower portion of the cylinder 35, an upper cover 34 for sealing the cylinder 35 and the backflow member 36 is disposed at an upper end portion of the backflow member 36, the adjusting member 31 is rotatably disposed in the upper cover 34, and the first backflow hole 341 is disposed on the upper cover 34.

The piston rod 33 is provided with a supporting plate 37, the supporting plate 37 is provided with a through hole, one end of the supporting plate 37 is provided with an elastic sealing sheet 38, when the arm exerciser is used for exercise, hydraulic oil drives the sealing sheet 38 to abut against the through hole for sealing, and the sealing sheet 38 drives the hydraulic oil to flow back through a backflow piece 36; when control arm strength resets, hydraulic oil passes through-hole drive sealing member deformation, makes hydraulic oil can flow back through the through-hole, and this structure will temper motion and 2 return strokes of rocking arm and distinguish, and the resistance that utilizes regulating part 31 and reflux piece 36 to produce in the motion process is tempered, and during 2 return strokes of rocking arm, hydraulic oil can not pass regulating part 31 and reflux piece 36, and the resistance is less can reset easily, and rocking arm 2 can not kick-back in this structure, and the security is high.

Preferably be provided with elastic component 39 on the piston rod 33, elastic component 39 supports tightly makes gasket 38 and backup pad 37 in close contact with on gasket 38, and hydraulic oil passes through the through-hole and flows back when avoiding the strength of arm not using to lead to rocking arm 2 freely swinging easily, influence normal one end transportation, in this embodiment elastic component 39 is compression spring, is provided with the axle sleeve 4 that is used for installing compression spring on the piston rod 33, and compression spring one end supports tightly on axle sleeve 4, and the compression spring other end supports tightly on gasket 38.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides an arm strength device, includes mount pad (1), is provided with pneumatic cylinder (3) and two sets of rocking arm (2) on mount pad (1), is provided with piston rod (33), its characterized in that in pneumatic cylinder (3): the swing arm (2) is rotatably arranged on the mounting base (1) through a rotating shaft, a sector gear part (14) is arranged on the swing arm (2), the axis of the sector gear part (14) is overlapped with the rotating center of the swing arm (2), a rack part (32) matched with the sector gear part (14) is arranged on the piston rod (33), and when the arm strength exerciser is used, a user drives the swing arm (2) to rotate and drives the piston rod (33) to slide in the hydraulic cylinder (3) through the sector gear part (14).

2. An arm exerciser according to claim 1, wherein: the mounting seat (1) comprises a mounting plate (11), a fan-shaped gear portion (14) and a rack portion (32) are hidden in the mounting plate (11), a hoop portion (12) is arranged on the mounting plate (11), and the hoop portion (12) is tightly held on the hydraulic cylinder (3), so that the hydraulic cylinder (3) is fixed on the mounting seat (1).

3. An arm exerciser according to claim 1 or claim 2, wherein: the two sides of the piston rod (33) are symmetrically provided with rack parts (32), and the sector gear parts (14) on the two groups of rocker arms (2) are respectively connected with the rack parts (32) on the two sides of the piston rod (33) to ensure that the two groups of rocker arms (2) synchronously move.

4. An arm exerciser according to claim 3, wherein: be provided with on mount pad (1) and accept chamber (13), during piston rod (33) one end was worn to establish in pneumatic cylinder (3), piston rod (33) other end was hidden and is set up in accepting chamber (13).

5. An arm exerciser according to claim 1, 2 or 4, wherein: the hydraulic cylinder (3) comprises a cylinder body (35), an adjusting piece (31) is arranged on the cylinder body (35), the flow rate of hydraulic oil in the cylinder body (35) is adjusted by the adjusting piece (31), so that resistance received in the movement process of the piston rod (33) is adjusted, the adjusting piece (31) is fixedly connected with the mounting seat (1), and when the hydraulic cylinder is used, the cylinder body (35) is controlled to enable the cylinder body (35) and the adjusting piece (31) to move relatively, so that the flow rate of the hydraulic oil in the cylinder body (35) is adjusted.

6. An arm exerciser according to claim 5, wherein: the hydraulic cylinder (3) comprises a backflow piece (36), in the using process of the arm power device, hydraulic oil in the cylinder body (35) flows through the backflow piece (36), a flow guide groove (311) with the gradually-reduced cross section is formed in the adjusting piece (31), the flow guide groove (311) and the hydraulic cylinder (3) are combined to form an oil way pipeline communicated with the backflow piece (36), when the flow speed of the hydraulic oil in the hydraulic cylinder (3) is adjusted, the backflow piece (36) is connected with the flow guide groove (311) at different positions, the minimum cross section area of the oil way pipeline is changed, and the flow speed of the hydraulic oil is controlled.

7. An arm exerciser according to claim 6, wherein: the adjusting piece (31) is rotatably arranged in the cylinder body (35), the guide groove (311) is wound on the adjusting piece (31) in a C-shaped mode, and when the adjusting piece is used, the cylinder body (35) and the adjusting piece (31) are driven to rotate relatively, so that the backflow piece (36) is connected with the guide groove (311) at different positions.

8. An arm exerciser according to claim 7, wherein: the cylinder body (35) and the backflow piece (36) are fixedly arranged, and the cylinder body (35) penetrates through the backflow piece (36).

9. An arm exerciser according to claim 1, 2, 4, 6, 7 or 8, wherein: the hydraulic arm exerciser is characterized in that a supporting plate (37) is arranged on the piston rod (33), a through hole is formed in the supporting plate (37), an elastic sealing piece (38) is arranged at one end of the supporting plate (37), when the arm exerciser is used for exercising, hydraulic oil drives the sealing piece (38) to abut against the through hole for sealing, and the sealing piece (38) drives the hydraulic oil to flow back through the backflow piece (36); when the control arm strength device resets, hydraulic oil drives the sealing element to deform through the through hole, so that the hydraulic oil can flow back through the through hole.

10. An arm exerciser according to claim 9, wherein: the piston rod (33) is provided with an elastic piece (39), and the elastic piece (39) is tightly propped against the sealing piece (38) to enable the sealing piece (38) to be in close contact with the supporting plate (37).