CN115025444B

CN115025444B - Physical arm exerciser

Info

Publication number: CN115025444B
Application number: CN202210729467.4A
Authority: CN
Inventors: 陈志丹
Original assignee: Jiangxi Normal University
Current assignee: Jiangxi Normal University
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2023-05-05
Anticipated expiration: 2042-06-24
Also published as: CN115025444A

Abstract

The invention provides a physical arm exerciser, which comprises an equipment box body, a counterweight selecting mechanism, a lifting mechanism and a counterweight mechanism, wherein the counterweight selecting mechanism comprises a lifting table, a sleeve, a gear, a screw rod, a push rod and a guide post, the sleeve is fixedly arranged at the bottom of the lifting table, the lifting table and the sleeve are sleeved outside a hanging frame in a clearance way, the gear is rotationally connected outside the sleeve through a bearing, the screw rod is meshed with one side of the gear and is rotationally connected with the lifting table through the bearing, a gear disc of the gear is provided with a plurality of oblique arc grooves, the push rod is an L-shaped rod, a vertical section of the push rod is vertically inserted in the oblique arc grooves, a horizontal section of the push rod is movably inserted at the side wall of the sleeve, and a bolt is magnetically connected with the horizontal section of the push rod; and the lifting mechanism is used for adjusting the height of the counterweight selecting mechanism. According to the invention, the height of the balance weight selecting mechanism is adjusted through the lifting mechanism, the training weight is selected through the control of the balance weight selecting mechanism, and the training balance weight can be conveniently and effectively adjusted.

Description

Physical arm exerciser

Technical Field

The invention belongs to the field of exercise equipment, and particularly relates to a physical arm exerciser.

Background

In order to ensure physical health, people usually perform various exercise activities, and different exercise methods are performed for different parts of the body, and arm exercise is one of the exercise methods, so that the existing arm exercise device usually has the problem of inconvenient weight adjustment, and therefore, there is a great need to design a physical arm exercise device convenient for weight adjustment to solve the problem.

Disclosure of Invention

The invention aims to provide a physical arm exerciser which aims to solve the technical problems.

The invention provides a physical arm exerciser, which comprises an equipment box body, a counterweight selecting mechanism, a lifting mechanism and a counterweight mechanism, wherein the counterweight selecting mechanism, the lifting mechanism and the counterweight mechanism are all arranged in the equipment box body;

the counterweight mechanism comprises a hanging frame and a plurality of counterweights which are placed in a stacked mode, the hanging frame is arranged outside the counterweights in a covering mode, the hanging frame and all the counterweights are connected in series and guided through a string rod, the string rod is vertically and fixedly arranged inside the equipment box, a plurality of rows of jacks which are arranged at intervals are arranged on the side wall of the hanging frame, the position of each jack corresponds to a gap between two adjacent counterweights, and the hanging frame is connected with a holding rod through a inhaul cable;

a stool is arranged on one side of the outer part of the equipment box body, the holding rod is suspended above the stool, and a pulley assembly for supporting the inhaul cable is arranged at the top of the equipment box body;

the counterweight selecting mechanism comprises a lifting table, a sleeve, a gear, a screw rod, a push rod and a guide post, wherein the guide post is vertically and fixedly arranged in the equipment box, the lifting table is movably sleeved on the guide post, the sleeve is fixedly arranged at the bottom of the lifting table, the lifting table and the sleeve are in clearance sleeve arrangement outside the lifting frame, the sleeve, the lifting frame and the counterweight block are concentrically arranged, the gear is rotationally connected with the outside of the sleeve through a bearing, the screw rod is meshed with one side of the gear and is rotationally connected with the lifting table through the bearing, a plurality of oblique arc grooves are formed in a gear disc of the gear, the push rod is an L-shaped rod, a vertical section of the push rod is vertically inserted in the oblique arc grooves, a horizontal section of the push rod is movably inserted in the side wall of the sleeve and points to the center of the sleeve, and a bolt is magnetically connected with a horizontal section of the push rod;

the lifting mechanism is used for adjusting the height of the counterweight selecting mechanism.

The physical arm exerciser provided by the invention has the following beneficial effects:

according to the physical arm exerciser disclosed by the invention, the height of the balance weight selecting mechanism is adjusted through the lifting mechanism, the balance weight selecting mechanism at different height positions can bring the bolts to the sides of the balance weights at different heights, then the balance weight selecting mechanism controls the bolts to be inserted between the side wall of the hanging frame and the adjacent two balance weights to realize the selection of training weight, and simultaneously, the bolts can be controlled to be withdrawn from the space between the hanging frame and the adjacent two balance weights to realize the reset of a part or the reselection of the training weight after the training is finished, so that the training balance weights are conveniently and effectively adjusted and selected.

In addition, the physical arm exerciser provided by the invention can also have the following additional technical characteristics:

further, elevating system includes bull stick, pivot and lantern ring, the pivot is installed inside keeping away from of equipment box the side of sitting bench, bull stick one end rotates to be connected on the pivot, the lantern ring sliding sleeve connects on the bull stick, be connected with a universal joint on the lantern ring, the universal joint is in through the roof fixed mounting at top elevating platform bottom.

Further, elevating system still includes sliding sleeve, slider and fixture block, the sliding sleeve cup joints on the bull stick, the lantern ring is located the sliding sleeve with between the pivot, the slider rotates to be connected sliding sleeve one side, and slides the vertical direction of equipment box lateral wall, the fixture block activity is pegged graft in the slider, part the fixture block is horizontal to be smooth out after the slider, through with the joint at the not co-altitude position of equipment box lateral wall, adjust the height of counter weight selection mechanism.

Further, the equipment box is symmetrical with two side walls adjacent to the side where the stool is placed and is respectively provided with a vertical groove and a plurality of clamping grooves which are arranged at intervals vertically, the clamping grooves are positioned at the sides of the vertical grooves and are communicated with the vertical grooves, the sliding blocks are slidably connected in the vertical grooves, and after part of the clamping blocks are horizontally smoothed out of the sliding blocks, the height of the counterweight selecting mechanism is adjusted through the clamping connection with the clamping grooves with different heights.

Further, the number of the lifting mechanisms is two, the lifting mechanisms are symmetrically arranged on two sides of the counterweight selecting mechanism, and a connecting rod is connected between sliding sleeves of the two lifting mechanisms.

Further, the oblique arc groove is arc-shaped and is obliquely arranged on a gear disc of the gear, the width of the oblique arc groove is identical to the diameter of the vertical section of the push rod, the radial distance between two ends of the oblique arc groove on the gear is a preset distance, the preset distance is the distance that the push rod moves towards the center of the sleeve, the center of the gear is used as the center of a circle, the central angle formed by two ends of the oblique arc groove is a preset angle, and the preset angle is the angle of gear rotation when the push rod pushes the plug pin to be inserted between the side wall of the hanging frame and two adjacent balancing weights.

Further, the horizontal section of push rod includes magnetism section and non-magnetism section, non-magnetism section with the vertical section integral type of push rod is perpendicular to be connected, magnetism section is the permanent magnet, fixed connection be in the end of non-magnetism section, magnetism section remains always in the sleeve, the bolt is magnetic material, the sleeve the push rod with hang the frame and be non-magnetic material.

Further, the screw rod includes engagement section and non-engagement section, engagement section with the gear carries out the meshing and is connected, and two sections non-engagement section is located respectively the both ends of engagement section, and respectively through the bearing with the connecting portion of elevating platform bottom is connected, two sections non-engagement section all runs through equipment box lateral wall and extends to the equipment box is outside, non-engagement section's end connection has a actuating handle for manual drive the screw rod rotates.

Further, the balancing weights are columnar, a convex part is arranged at the top, a concave part is arranged at the bottom, and the concave parts of the balancing weights positioned at the upper layer are matched and inserted with the convex parts of the balancing weights positioned at the lower layer between two adjacent stacked balancing weights.

Further, one side of the equipment box body, on which the stool is placed, is provided with a groove part and is in a groove shape, the stool is placed in the middle of the groove wall of the groove part in a pasting mode, dovetail grooves are symmetrically formed in the tops of two side walls of the groove part, the dovetail sections of the two dovetail grooves are opposite, a supporting plate is connected in the dovetail grooves in a sliding mode, the bottom of the end, opposite to the supporting plate, of the supporting plate is pivoted with a supporting rod, the end, far away from the supporting plate, of the supporting rod is pivoted on a connecting block, the connecting block is in sliding connection with the side wall of the groove part, a first limiting hole is formed in the connecting block, a row of second limiting holes are formed in the side wall of the groove part at intervals, and the first limiting holes are spliced with the second limiting holes through limiting rods.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a top view of a physical arm exerciser according to an embodiment of the present invention;

fig. 2 is a first cross-sectional view of a top view of a sports arm exerciser according to an embodiment of the invention;

FIG. 3 is a second cross-sectional view of a top view of a sports arm exerciser according to an embodiment of the present invention;

fig. 4 is a partial cross-sectional view of a front view of a first operational state of the sports arm exerciser of an embodiment of the present invention;

fig. 5 is a partial cross-sectional view of a front view of a second operational state of the sports arm exerciser of an embodiment of the present invention;

fig. 6 is a partial cross-sectional view of a front view of a third operating state of the sports arm exerciser of an embodiment of the present invention;

FIG. 7 is a left side view of a sports arm exerciser according to an embodiment of the present invention;

FIG. 8 is a diagram showing a connection structure of a counterweight selection mechanism, a lifting mechanism, and a counterweight mechanism according to an embodiment of the invention;

FIG. 9 is a diagram showing the connection structure of the push rod and the latch according to the embodiment of the present invention;

FIG. 10 is a block diagram of a counterweight according to an embodiment of the invention.

Reference numerals: 10. the equipment box body, 11, the groove part, 12, the dovetail groove, 13, the bearing plate, 14, the supporting rod, 15, the connecting block, 16, the limit rod, 17, the vertical groove, 18, the clamping groove, 20, the counterweight selecting mechanism, 21, the lifting table, 22, the sleeve, 23, the gear, 231, the oblique arc groove, 24, the screw, 241, the meshing section, 242, the non-meshing section, 243, the driving handle, 25, the push rod, 251, the vertical section, 252, the magnetic section, 253, the non-magnetic section, 26, the bolt, 27, the guide post, 28, the connecting part, 30, the lifting mechanism, 31, the rotating rod, 32, the pivot, 33, the lantern ring, 34, the universal joint, 35, the top plate, 36, the sliding sleeve, 37, the sliding block, 38, the clamping block, 381, the pushing handle, 39, the connecting rod, 40, the counterweight mechanism, 41, the hanging frame, 411, the jack, 42, the counterweight, 421, the convex part, 422, the concave part, 43, the string, 50, the sitting stool, 60, the holding rod, 70, the dragline, 80 and the pulley assembly.

Description of the embodiments

In order that the objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Several embodiments of the invention are presented in the figures. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Referring to fig. 1 to 10, an embodiment of the present invention provides a sports arm exerciser including an equipment housing 10, a weight selection mechanism 20, a lifting mechanism 30 and a weight mechanism 40, wherein the weight selection mechanism 20, the lifting mechanism 30 and the weight mechanism 40 are all disposed in the equipment housing 10.

The bench 50 has been placed to outside one side of equipment box 10, bench 50 top hangs and is equipped with a holding rod 60, the outside cover of holding rod 60 is equipped with the antiskid cover, be equipped with first rings in the middle of the holding rod 60 for connect the one end of cable 70, equipment box 10 top is equipped with and is used for supporting the pulley assembly 80 of cable 70, when training, the training person sits on bench 50, has adjusted the position of sitting, both hands grasp respectively the both sides of holding rod 60, pulls down through the arm holding rod 60, just can pass through the cable 70 will select the lifting frame 41 upward pulling of good weight.

The utility model discloses a two-purpose training device for the sports equipment, including equipment box 10, seat 50, recess portion 11 has been placed to one side of seat 50, be the recess form, seat 50 is leaned on in the middle of the cell wall of recess portion 11 is placed, the both sides wall top symmetry of recess portion 11 is equipped with dovetail 12, two dovetail 12's dovetail cross-section is relative, sliding connection has a bearing board 13 in dovetail 12, the bottom pin joint of the end that bearing board 13 is relative has a bracing piece 14, the end pin joint that the bracing piece 14 kept away from bearing board 13 is on a connecting block 15, connecting block 15 with the lateral wall sliding connection of recess portion 11, be equipped with first spacing hole on the connecting block 15, the lateral wall interval of recess portion 11 is provided with a series of second spacing hole, first spacing hole with the second spacing hole is pegged graft through gag lever 16, when two bearing 13 in the dovetail 12 slides relatively to the recess top of recess portion 11 and the distance is less than the length of holding lever 60, will first spacing hole is good and the second spacing lever 16 is used for the bearing body can be used for training the two-purpose to realize the stopper. For safety, the two ends of the holding rod 60 and the supporting plate 13 may also be provided with limiting holes, and corresponding limiting members may be inserted to prevent the holding rod 60 from moving.

The counterweight mechanism 40 comprises a hanging frame 41 and a plurality of counterweights 42 which are stacked, the hanging frame 41 is covered outside the counterweights 42, the hanging frame 41 can be cylindrical, the hanging frame 41 and all the counterweights 42 are connected in series and guided through a string rod 43, the string rod 43 is vertical and fixedly arranged inside the equipment box 10, the number of the string rods 43 is two, the central line of the hanging frame 41 is symmetrical, one or more than two string rods can be arranged, the side wall of the hanging frame 41 is provided with a plurality of rows of jacks 411 which are arranged at intervals, the number of the rows of the jacks 411 is the same as the number of the bolts 26, the position of each jack 411 corresponds to the gap between two adjacent counterweights 42, and a second hanging ring is arranged in the middle of the top of the hanging frame 41 and used for connecting the inhaul cable 70 and the holding rod 60.

The balancing weights 42 are columnar, a convex part 421 is arranged at the top, a concave part 422 is arranged at the bottom, two adjacent layers of the balancing weights 42 are stacked, the concave part 422 of the balancing weights 42 positioned at the upper layer is matched and inserted with the convex part 421 of the balancing weights 42 positioned at the lower layer, so that the adjacent balancing weights 42 are stacked and matched more tightly, wherein the balancing weights 42 can be 5kg, 2.5kg or 10kg, and balancing weights 42 with different weights can be matched and combined.

The counterweight selecting mechanism 20 comprises a lifting table 21, a sleeve 22, a gear 23, a screw 24, a push rod 25 and a guide post 27, wherein the guide post 27 is vertically and fixedly arranged inside the equipment box 10, the lifting table 21 is movably sleeved on the guide post 27, the sleeve 22 is fixedly arranged at the bottom of the lifting table 21, the lifting table 21 and the sleeve 22 are sleeved outside the lifting frame 41 in a clearance mode, the sleeve 22, the lifting frame 41 and the counterweight 42 are concentrically arranged, the gear 23 is rotatably connected with the sleeve 22 through a bearing, the screw 24 is meshed with one side of the gear 23 and is rotatably connected with the lifting table 21 through the bearing, a plurality of oblique arc grooves 231 are formed in a gear disc of the gear 23, the push rod 25 is an L-shaped rod 251, the vertical section of the push rod 25 is vertically inserted in the oblique arc grooves 231, the horizontal section of the push rod 25 is movably inserted on the side wall of the sleeve 22 and points to the center of the sleeve 22, and the horizontal section of the push rod 25 is magnetically connected with a lifting frame 26 for being movably inserted between the two adjacent side walls 41 and the two adjacent side walls 42.

It should be noted that, the weight selecting mechanism 20 is configured to control the insertion of the pin 26 between the side wall of the hanging frame 41 and two adjacent weights 42 to achieve selection of training weight, and control the withdrawal of the pin 26 between the hanging frame 41 and two adjacent weights 42 to achieve reset of the components after the training or reselection of the training weight.

In specific implementation, when training is needed, the screw 24 is rotated, so that the screw 24 drives the gear 23 to rotate anticlockwise outside the sleeve 22 as shown in fig. 1, the anticlockwise rotating oblique arc slot 231 pushes the push rod 25 to move towards the center of the sleeve 22, so that the vertical section 251 of the push rod 25 gradually moves to the end of the oblique arc slot 231 near the center of the gear 23, the horizontal section of the push rod 25 pushes the latch 26 to be gradually inserted between the side wall of the hanging frame 41 and the adjacent two balancing weights 42, and if the cable 70 pulls the hanging frame 41 upwards, the latch 26 is separated from the push rod 25; when training is completed or the training weight needs to be reselected, the screw 24 is reversely rotated, so that the screw 24 drives the gear 23 to rotate clockwise as shown in fig. 1 outside the sleeve 22, the clockwise rotating inclined arc groove 231 pushes the push rod 25 to move away from the center of the sleeve 22, so that the vertical section 251 of the push rod 25 gradually moves to the end of the inclined arc groove 231 away from the center of the gear 23, and the horizontal section of the push rod 25 magnetically adsorbs the latch 26 and drives the latch 26 to gradually separate from the balancing weight 42 and the hanging frame 41.

The oblique arc groove 231 is arc-shaped and is obliquely arranged on a gear disc of the gear 23, the width of the oblique arc groove 231 is the same as the diameter of a vertical section 251 of the push rod 25, the radial distance between two ends of the oblique arc groove 231 on the gear 23 is a preset distance, the preset distance is the distance that the push rod 25 moves towards the center of the sleeve 22, the center of the gear 23 is taken as the center of a circle, the central angle of two ends of the oblique arc groove 231 is a preset angle, and the preset angle is the angle of rotation of the gear 23 when the push rod 25 pushes the latch 26 to be inserted between the side wall of the hanging frame 41 and two adjacent balancing weights 42.

The number of the inclined arc grooves 231 is specifically three, each inclined arc groove 231 is internally provided with one push rod 25, and the three push rods 25 are distributed in a circumferential matrix, so that when a counterweight is selected, bolts 26 inserted between the side wall of the hanging frame 41 and the counterweight 42 are distributed in a matrix, and each bolt 26 is balanced and stable in stress.

The horizontal section of push rod 25 includes magnetism section 252 and non-magnetism section 253, non-magnetism section 253 with the vertical section 251 of push rod 25 is integrative to be connected perpendicularly, magnetism section 252 is the permanent magnet, fixed connection be in the end of non-magnetism section 253, magnetism section 252 remains always in sleeve 22, the bolt 26 is magnetic material, sleeve 22 the push rod 25 with hang frame 41 and be non-magnetic material, avoid sleeve 22 hang frame 41 is magnetized, to the motion of bolt 26 produces the influence, also avoid simultaneously push rod 25 is magnetized, produces the influence to the motion of push rod 25.

The screw 24 includes a meshing section 241 and a non-meshing section 242, the meshing section 241 is in meshing connection with the gear 23, the two non-meshing sections 242 are respectively located at two ends of the meshing section 241 and are respectively connected with the connecting portion 28 at the bottom of the lifting platform 21 through bearings, the two non-meshing sections 242 penetrate through the side wall of the equipment box 10 and extend to the outside of the equipment box 10, a driving handle 243 is connected to the end of the non-meshing section 242 and is used for manually driving the screw 24 to rotate, an inserted and withdrawn word mark can be marked on the outer wall of the equipment box 10 and an arc arrow line is marked to guide a user to correctly drive the screw 24 to rotate, and as the two non-meshing sections 242 penetrate through the side wall of the equipment box 10 and extend to the outside of the equipment box 10 and are respectively connected with the driving handle 243, the screw 24 can be driven to rotate at two sides of the equipment box 10, so that the placement of the equipment box 10 can be facilitated.

The number of the guide posts 27 is three, and the guide posts are respectively inserted into two wing sides and the tail of the lifting platform 21, so as to keep the balance weight selecting mechanism 20 stable and limit the movement of the balance weight selecting mechanism 20 in the vertical direction.

The number of the lifting mechanisms 30 is two, and the lifting mechanisms are symmetrically arranged at two sides of the counterweight selecting mechanism 20.

The lifting mechanism 30 comprises a rotating rod 31, a pivot 32 and a collar 33, wherein the pivot 32 is arranged on the side, away from the stool 50, of the interior of the equipment box 10, one end of the rotating rod 31 is rotatably connected to the pivot 32, the collar 33 is slidably sleeved on the rotating rod 31, a universal joint 34 is connected to the collar 33, the universal joint 34 is fixedly arranged at the bottom of the lifting table 21 through a top plate 35 at the top, the lifting table 21 is in a wing plate shape, and the top plate 35 is fixedly arranged at the bottom of the wing side of the lifting table 21.

The lifting mechanism 30 further comprises a sliding sleeve 36, a sliding block 37 and a clamping block 38, the sliding sleeve 36 is in sliding sleeve connection with the rotating rod 31, a connecting rod 39 is connected between the sliding sleeves 36 of the two lifting mechanisms 30, the sleeve ring 33 is located between the sliding sleeve 36 and the pivot 32, the sliding block 37 is rotationally connected to one side of the sliding sleeve 36 and slides in the vertical direction of the side wall of the equipment box 10, the clamping block 38 is movably inserted into the sliding block 37, and after part of the clamping block 38 horizontally slides out of the sliding block 37, the height of the counterweight selecting mechanism 20 is adjusted through clamping connection with different height parts of the side wall of the equipment box 10.

Specifically, the equipment box 10 is symmetrical with two side walls adjacent to the side where the stool 50 is placed, and is respectively provided with a vertical groove 17 and a plurality of clamping grooves 18 which are arranged at intervals and vertically, the clamping grooves 18 are located at the sides of the vertical grooves 17 and are communicated with the vertical grooves 17, the sliding blocks 37 are slidably connected in the vertical grooves 17, after part of the clamping blocks 38 horizontally slide out of the sliding blocks 37, the height of the counterweight selecting mechanism 20 is adjusted through the clamping connection with the clamping grooves 18 with different heights, a pushing handle 381 is arranged at the outer side of the clamping blocks 38 and can be used for pushing the sliding blocks 37 to move up and down in the vertical grooves 17, part of the clamping blocks 38 can also be pushed to be inserted into the clamping grooves 18, corresponding weight text marks can be made at the sides of the clamping grooves 18, each clamping groove 18 corresponds to a training weight, and the marked weight corresponds to the weight of the counterweight 42 selected at the height, and the weight increases from top to bottom sequentially.

It should be noted that, the lifting mechanism 30 is configured to manually adjust the height of the weight selecting mechanism 20, and when arm weight training is required, the height of the weight selecting mechanism 20 is adjusted by the lifting mechanism 30, specifically: according to the weight character marks beside the clamping groove 18, the sliding block 37 is pushed to adjust the clamping block 38 to the height of the weight clamping groove 18 to be trained, the clamping block 38 is transversely pushed into the corresponding clamping groove 18, the rotating rod 31 is driven by the sliding block 37 to rotate upwards or downwards around the pivot 32, the rotating rod 31 drives the weight selecting mechanism 20 to move together through the lantern ring 33, the weight selecting mechanism 20 moves in the vertical direction under the regulation of the universal joint 34 and the limitation of the guide post 27, after the clamping block 38 is clamped into the clamping groove 18, the weight selecting mechanism 20 also drives the bolt 26 to reach the corresponding weight 42 to be selected, the driving handle 243 of the screw 24 is rotated to realize the insertion action of the bolt 26, and at the moment, the bolt 26 is inserted under the hanging frame 41 and the weight 42 to be selected (the weight of all the weights 42 and the hanging frame 41 to be selected is the weight to be selected), and then training is carried out; after the arm weight training is completed, the driving handle 243 of the screw 24 is rotated to withdraw the latch 26, and then the slider 37 is pushed to the bottom of the vertical slot 17, so that the weight selecting mechanism 20 falls to the ground.

In order to realize convenient and effective selection of the training weights, the weight selecting mechanism 20 is sleeved outside the weight mechanism 40, the screw 24 of the weight selecting mechanism 20 is driven to rotate by manually rotating a driving handle 243 outside the equipment box 10 for a certain angle, so as to drive the gear 23 to rotate, and the inclined arc groove 231 on the gear 23 rotates to push the push rod 25 to move towards the center of the sleeve 22, so that the bolt 26 is inserted between the hanging frame 41 and the balancing weight 42 to realize selection of the weights, and further, as the bolt 26 is connected with the push rod 25 through magnetic force, the bolt is convenient to separate from the push rod 25 when the hanging frame 41 is pulled in training, and can be conveniently and rapidly sucked out by magnetic force after the training is finished, and is separated from the hanging frame 41 and the balancing weight 42, so that the weights during training and the reset operation after the training is finished are conveniently and effectively realized.

In order to realize convenient and effective adjustment of the height of the weight selecting mechanism 20, two synchronous lifting mechanisms 30 are arranged at two sides of the weight selecting mechanism 20, the height of the sliding block 37 is manually adjusted to drive the rotating rod 31 to rotate around the pivot 32 on the vertical surface, and then the height of the weight selecting mechanism 20 is driven to move in the vertical direction, after a clamping block 38 in the sliding block 37 is manually pushed into the clamping groove 18, the weight selecting mechanism 20 can be stabilized at a height, and further convenient and effective adjustment of the height of the weight selecting mechanism 20 is realized, wherein the weight selecting mechanism 20 is connected with the rotating rod 31 of the lifting mechanism 30 through the lantern ring 33, the universal joint 34 and the top plate 35, and the weight selecting mechanism 20 is limited by the guide post 27, so that when the rotating rod 31 rotates, the weight selecting mechanism 20 only absorbs displacement in the vertical direction of the rotating rod 31 and does not synchronously move along with the rotating rod 31, and the rotating rod 31 is prevented from moving along with the sliding sleeve 36 when the sliding rod 31 rotates and is limited in the sliding sleeve 36.

The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims

1. The physical arm exerciser is characterized by comprising an equipment box body, a counterweight selecting mechanism, a lifting mechanism and a counterweight mechanism, wherein the counterweight selecting mechanism, the lifting mechanism and the counterweight mechanism are all arranged in the equipment box body;

the lifting mechanism is used for adjusting the height of the counterweight selecting mechanism;

the lifting mechanism comprises a rotating rod, a pivot and a lantern ring, wherein the pivot is arranged on the side, away from the stool, of the interior of the equipment box body, one end of the rotating rod is rotatably connected to the pivot, the lantern ring is in sliding sleeve connection with the rotating rod, the lantern ring is connected with a universal joint, and the universal joint is fixedly arranged at the bottom of the lifting platform through a top plate at the top;

the lifting mechanism further comprises a sliding sleeve, a sliding block and a clamping block, the sliding sleeve is sleeved on the rotating rod in a sliding manner, the lantern ring is positioned between the sliding sleeve and the pivot, the sliding block is rotationally connected to one side of the sliding sleeve and slides in the vertical direction of the side wall of the equipment box body, the clamping block is movably inserted into the sliding block, and after part of the clamping block is horizontally smoothed out of the sliding block, the height of the counterweight selecting mechanism is adjusted through clamping with different height parts of the side wall of the equipment box body;

the equipment box body is symmetrical to two side walls adjacent to the side where the stool is placed, and is respectively provided with a vertical groove and a plurality of clamping grooves which are vertically distributed at intervals, the clamping grooves are positioned at the sides of the vertical grooves and are communicated with the vertical grooves, the sliding blocks are slidingly connected in the vertical grooves, and after part of the clamping blocks are horizontally smoothed out of the sliding blocks, the height of the counterweight selecting mechanism is adjusted through the clamping connection with the clamping grooves with different heights;

the number of the lifting mechanisms is two, the lifting mechanisms are symmetrically arranged at two sides of the counterweight selecting mechanism, and a connecting rod is connected between sliding sleeves of the two lifting mechanisms;

the inclined arc groove is arc-shaped and is obliquely arranged on a gear disc of the gear, the width of the inclined arc groove is the same as the diameter of a vertical section of the push rod, the radial distance between two ends of the inclined arc groove on the gear is a preset distance, the preset distance is the distance that the push rod moves towards the center of the sleeve, the center of the gear is taken as the center of a circle, the central angle formed by two ends of the inclined arc groove is a preset angle, and the preset angle is the angle of rotation of the gear when the push rod pushes the bolt to be inserted between the side wall of the hanging frame and two adjacent balancing weights;

the horizontal section of the push rod comprises a magnetic section and a non-magnetic section, the non-magnetic section is vertically connected with the vertical section of the push rod in an integrated mode, the magnetic section is a permanent magnet and is fixedly connected to the tail end of the non-magnetic section, the magnetic section is always reserved in the sleeve, the bolt is made of a magnetic material, and the sleeve, the push rod and the hanging frame are made of a non-magnetic material;

the screw comprises an engagement section and a non-engagement section, the engagement section is in engagement connection with the gear, the two non-engagement sections are respectively positioned at two ends of the engagement section and are respectively connected with a connecting part at the bottom of the lifting table through bearings, the two non-engagement sections penetrate through the side wall of the equipment box body and extend to the outside of the equipment box body, and the end part of the non-engagement section is connected with a driving handle for manually driving the screw to rotate;

the balancing weights are columnar, a convex part is arranged at the top, a concave part is arranged at the bottom, and the concave parts of the balancing weights positioned at the upper layer are matched and inserted with the convex parts of the balancing weights positioned at the lower layer between two adjacent stacked balancing weights.

2. The physical arm exerciser according to claim 1, wherein one side of the equipment box body, on which the stool is placed, is provided with a groove part and is in a groove shape, the stool is placed in the middle of the groove wall of the groove part in a manner of being abutted against, dovetail grooves are symmetrically formed in the tops of two side walls of the groove part, dovetail sections of the two dovetail grooves are opposite, a bearing plate is slidably connected in the dovetail grooves, a supporting rod is pivoted at the bottom of the end of the bearing plate opposite to the bearing plate, the end of the supporting rod, which is far away from the bearing plate, is pivoted on a connecting block, the connecting block is slidably connected with the side wall of the groove part, a first limiting hole is formed in the connecting block, a row of second limiting holes are formed in the side wall of the groove part at intervals, and the first limiting holes are spliced with the second limiting holes through limiting rods.