CN115025444A

CN115025444A - Sports arm exerciser

Info

Publication number: CN115025444A
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: 2022-09-09
Anticipated expiration: 2042-06-24
Also published as: CN115025444B

Abstract

The invention provides a physical arm exerciser, which comprises an equipment box body, a balance weight selecting mechanism, a lifting mechanism and a balance weight mechanism, wherein the balance weight 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 manner, the gear is rotatably connected to the outside of the sleeve through a bearing, the screw rod is meshed to one side of the gear and is rotatably connected with the lifting table through the bearing, a gear wheel disc of the gear is provided with a plurality of inclined arc grooves, the push rod is an L-shaped rod, a vertical section of the push rod is vertically inserted into the inclined arc grooves, a horizontal section of the push rod is movably inserted into the side wall of the sleeve, and a horizontal section of the push rod is magnetically connected with a bolt; and the lifting mechanism is used for adjusting the height of the counterweight selecting mechanism. The height of the counterweight selecting mechanism is adjusted through the lifting mechanism, the selection of the training weight is realized through the control of the counterweight selecting mechanism, and the training counterweight 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 the health of the body, people usually go to various fitness activities, and different fitness methods are available for different parts of the body, and arm exercise is also one of the fitness methods.

Disclosure of Invention

The present invention is directed to a physical arm exerciser to solve the above problems.

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

the counterweight mechanism comprises a hanging frame and a plurality of balancing weights which are stacked, the hanging frame covers the outside of the balancing weights, the hanging frame and all the balancing weights are connected in series and guided through a string rod, the string rod is vertically and fixedly arranged inside the equipment box body, a plurality of rows of jacks which are distributed at intervals are arranged on the side wall of the hanging frame, the position of each jack corresponds to the gap between every two adjacent balancing weights, and the hanging frame is connected with the holding rod through a pull rope;

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 counter weight selecting mechanism comprises a lifting platform, a sleeve, a gear, a screw rod, a push rod and a guide post, the guide post is vertically and fixedly arranged inside the equipment box body, the lifting platform is movably sleeved on the guide post, the sleeve is fixedly arranged at the bottom of the lifting platform, the lifting platform and the sleeve are sleeved outside the hanging frame in a clearance manner, the sleeve, the hanging frame and the balancing weight are concentrically arranged, the gear is rotatably connected outside the sleeve through a bearing, the screw rod is meshed at one side of the gear and is rotatably connected with the lifting platform through a bearing, a plurality of inclined arc grooves are arranged on a gear wheel disc of the gear, the push rod is an L-shaped rod, the vertical section of the push rod is vertically inserted into the inclined arc grooves, the horizontal section of the push rod is movably inserted into the side wall of the sleeve and points to the center of the sleeve, the horizontal section of the push rod is magnetically connected with a bolt;

and 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, the height of the balance weight selecting mechanism is adjusted through the lifting mechanism, the balance weight selecting mechanisms at different height positions can bring a bolt to the sides of the balance weight blocks with different heights, the balance weight selecting mechanism controls the bolt to be inserted into the side wall of the hanging frame and between two adjacent balance weight blocks to select the training weight, and meanwhile the bolt can be controlled to be withdrawn from the hanging frame and between two adjacent balance weight blocks to reset the part after the training is finished or reselect the training weight, so that the training balance weight is 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 the lantern ring, the pivot is installed inside keeping away from of equipment box the side of stool, bull stick one end is rotated and is connected in on the pivot, the lantern ring slides and cup joints on the bull stick, be connected with a universal joint on the lantern ring, the universal joint passes through the roof fixed mounting at top in the elevating platform bottom.

Furthermore, the lifting mechanism further comprises a sliding sleeve, a sliding block and a clamping block, the sliding sleeve is slidably sleeved on the rotating rod, the sleeve ring is located between the sliding sleeve and the pivot, the sliding block is rotatably 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 in the sliding block, and after part of the clamping block horizontally slides out of the sliding block, the clamping block is clamped with different height parts of the side wall of the equipment box body to adjust the height of the counterweight selecting mechanism.

Further, the equipment box with place the adjacent both sides wall symmetry of stool that side and be equipped with a vertical groove and a plurality of interval and the vertical draw-in groove of arranging respectively, the draw-in groove is located the side of vertical groove, and with vertical groove intercommunication, slider sliding connection be in vertical inslot, part fixture block level roll-off behind the slider, through with not co-altitude the joint of draw-in groove adjusts the height of mechanism is selected to the counter weight.

Furthermore, the number of the lifting mechanisms is two, the two 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 wheel disc of the gear, the width of the oblique arc groove is equal to the diameter of the vertical section of the push rod, the two ends of the oblique arc groove are located, the radial distance on the gear is a preset distance, the preset distance is the distance of the push rod moving towards the center of the sleeve, the center of the gear is the circle center, the circle center angle formed by the two ends of the oblique arc groove is a preset angle, and the preset angle is that the push rod pushes the bolt to be inserted into the side wall of the hanging frame and the adjacent two of the hanging frame when the gear rotates between the balancing weights.

Further, the horizontal section of push rod includes magnetism section and non-magnetism nature section, the non-magnetism nature section with the vertical section integral type of push rod is connected perpendicularly, magnetism section is the permanent magnet, fixed connection in the end of non-magnetism nature 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-magnetism nature material.

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

Furthermore, the balancing weight is columnar, a convex part is arranged at the top of the balancing weight, a concave part is arranged at the bottom of the balancing weight, and between two adjacent stacked balancing weights, the concave part of the balancing weight positioned on the upper layer is matched and spliced with the convex part of the balancing weight positioned on the lower layer.

Further, one side that the stool was placed to the equipment box is the concave part, is the recess form, the stool pastes place in the middle of the cell wall of concave part, the both sides wall top symmetry of concave part is equipped with the dovetail, two the forked tail cross-section of dovetail is relative, sliding connection has a bearing board in the dovetail, the end bottom pin joint that the bearing board is relative has a bracing piece, keeping away from of bracing piece the end pin joint of bearing board is on a connecting block, the connecting block with the lateral wall sliding connection of concave part, be equipped with first spacing hole on the connecting block, the lateral wall interval of concave part is provided with the spacing hole of a second, first spacing hole with the spacing hole of second is pegged graft through the gag lever post.

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 above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of 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 physical arm exerciser in accordance with an embodiment of the present invention;

FIG. 3 is a second cross-sectional view of a top view of a physical arm exerciser in accordance with an embodiment of the present invention;

FIG. 4 is a partial cross-sectional view of a front view of a first operating state of the physical arm exerciser according to the embodiment of the present invention;

FIG. 5 is a partial cross-sectional view of a front view of a second operational state of the physical arm exerciser according to the embodiment of the present invention;

FIG. 6 is a partial cross-sectional view of a front view of a third operating state of the physical arm exerciser according to the embodiment of the present invention;

fig. 7 is a left side view of the physical arm exerciser in accordance with the embodiment of the present invention;

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

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

fig. 10 is a structural diagram of a weight block according to an embodiment of the present invention.

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

Detailed Description

In order to make the objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. Several embodiments of the invention are presented in the drawings. 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 physical arm exerciser including a machine housing 10, a weight selecting mechanism 20, a lifting mechanism 30, and a weight mechanism 40, wherein the weight selecting mechanism 20, the lifting mechanism 30, and the weight mechanism 40 are disposed in the machine housing 10.

The stool 50 has been placed to outside one side of the equipment box 10, sit the stool 50 top and hang and be equipped with a holding rod 60, the outside cover of holding rod 60 is equipped with antiskid cover 36, 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 pulley assembly 80 of cable 70, and when training, the training person sits on sitting the stool 50, adjusts the position of sitting, and both hands hold respectively the both sides of holding rod 60, through the arm pulling downwards the holding rod 60, just can pass through cable 70 will select the hanging frame 41 upwards pulling of good weight.

One side of the equipment box 10, on which the stool 50 is placed, is a groove-shaped groove 11, the stool 50 is placed in the middle of the groove wall of the groove 11, two dovetail grooves 12 are symmetrically arranged at the tops of two side walls of the groove 11, the dovetail sections of the two dovetail grooves 12 are opposite, a supporting plate 13 is slidably connected in the dovetail grooves 12, a supporting rod 14 is pivotally connected to the bottom of the opposite end of the supporting plate 13, the end of the supporting rod 14, which is far away from the supporting plate 13, is pivotally connected to a connecting block 15, the connecting block 15 is slidably connected with the side wall of the groove 11, a first limiting hole is arranged on the connecting block 15, a row of second limiting holes are arranged at intervals on the side wall of the groove 11, the first limiting hole is plugged with the second limiting hole through a limiting rod 16, when the two supporting plates 13 in the dovetail grooves 12 slide relatively to the top of the groove 11 and the distance is less than the length of the holding rod 60, the first limiting hole and the second limiting hole are matched and the limiting rod 16 is inserted, at this time, the supporting plate 13 can be used for supporting the holding rod 60 and can be used for pull-up training, dual purposes of one device are achieved, and the functionality of the trainer is enhanced. For safety, both ends of the holding rod 60 and the supporting plate 13 may also be provided with a limiting hole, and a corresponding limiting member is inserted to prevent the holding rod 60 from moving.

The counterweight mechanism 40 comprises a hanging frame 41 and a plurality of counterweight blocks 42 which are stacked, the hanging frame 41 is covered outside the counterweight blocks 42, the hanging frame 41 may be cylindrical, the hanging frame 41 and all the balancing weights 42 are connected in series and guided by a string rod 43, the cross rods 43 are vertically and fixedly arranged inside the equipment box 10, the number of the cross rods 43 is two, and the cross rods are symmetrical with respect to the center line of the hanging frame 41, and may be one or more than two, the side wall of the hanging frame 41 is provided with a plurality of rows of insertion holes 411 which are arranged at intervals, the number of the rows of the insertion holes 411 is the same as that of the bolts 26, the position of each insertion hole 411 corresponds to the gap between two adjacent counter weights 42, the middle of the top of the hanging frame 41 is provided with a second hanging ring, is used for connecting the pull cable 70 and is connected with the holding rod 60 through the pull cable 70.

The balancing weight 42 is columnar, the top is provided with a convex part 421, the bottom is provided with a concave part 422, two adjacent stacked balancing weights 42 are arranged between each other, the concave part 422 of the balancing weight 42 positioned on the upper layer is matched and spliced with the convex part 421 of the balancing weight 42 positioned on the lower layer, so that the adjacent balancing weights 42 are more closely matched in a stacked manner, wherein the balancing weight 42 can be 5kg, 2.5kg or 10kg, or can be the matching and combination of the balancing weights 42 with different weights.

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

It should be noted that the counterweight selecting mechanism 20 is configured to control the plug pin 26 to be inserted into the side wall of the hanging frame 41 and between two adjacent counterweight blocks 42 to select the training weight, and control the plug pin 26 to be withdrawn from the hanging frame 41 and between two adjacent counterweight blocks 42 to reset the component after the training is completed or reselect the training weight.

In a specific implementation, when training is required, the screw rod 24 is rotated, so that the screw rod 24 drives the gear 23 to rotate counterclockwise outside the sleeve 22 as shown in fig. 1, the counterclockwise-rotated oblique arc groove 231 pushes the push rod 25 to move toward 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 groove 231 close to the center of the gear 23, the horizontal section of the push rod 25 pushes the plug pin 26 to gradually insert between the side wall of the hanging frame 41 and two adjacent counter weights 42, and if the pull cable 70 pulls the hanging frame 41 upward, the plug pin 26 is separated from the push rod 25; when the training is completed or the training weight needs to be selected again, the screw rod 24 is rotated reversely, so that the screw rod 24 drives the gear 23 to rotate clockwise outside the sleeve 22 as shown in fig. 1, the clockwise rotating oblique arc groove 231 pushes the push rod 25 to move in a direction away from the center of the sleeve 22, the vertical section 251 of the push rod 25 gradually moves to the end of the oblique arc groove 231 away from the center of the gear 23, and the horizontal section of the push rod 25 magnetically adsorbs the plug pin 26 and drives the plug pin 26 to gradually separate from the counterweight 42 and the hanging frame 41.

Oblique arc groove 231 is the arc to the slope sets up on the toothed disc of gear 23, the width of oblique arc groove 231 with the diameter size of vertical section 251 of push rod 25 is the same, the both ends of oblique arc groove 231 are in radial distance on the gear 23 is predetermined distance, predetermined distance does push rod 25 court the distance of sleeve 22 central motion, with the center of gear 23 is the centre of a circle, the central angle that the both ends of oblique arc groove 231 were is predetermined the angle, predetermined the angle does push rod 25 promotes bolt 26 inserts to hang frame 41's lateral wall and adjacent two when between the balancing weight 42 gear 23 pivoted angle.

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

The horizontal section of the push rod 25 comprises a magnetic section 252 and a non-magnetic section 253, the non-magnetic section 253 is vertically connected with the vertical section 251 of the push rod 25 in an integrated manner, the magnetic section 252 is a permanent magnet and is fixedly connected to the tail end of the non-magnetic section 253, the magnetic section 252 is always reserved in the sleeve 22, the bolt 26 is made of a magnetic material, and the sleeve 22, the push rod 25 and the hanging frame 41 are made of a non-magnetic material, so that the sleeve 22 and the hanging frame 41 are prevented from being magnetized to influence the movement of the bolt 26, and the push rod 25 is prevented from being magnetized to influence the movement of the push rod 25.

The screw 24 comprises an engaging section 241 and a non-engaging section 242, the engaging section 241 is engaged with the gear 23, two non-engaging sections 242 are respectively located at two ends of the engaging section 241 and are respectively connected with the connecting part 28 at the bottom of the lifting platform 21 through a bearing, the non-engaging sections 242 both penetrate through the side wall of the equipment box 10 and extend to the outside of the equipment box 10, the end part of the non-engaging section 242 is connected with a driving handle 243 for manually driving the screw 24 to rotate, a character mark for inserting and withdrawing 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, because the non-engaging sections 242 both penetrate through the side wall of the equipment box 10 and extend to the outside of the equipment box 10 and are both connected with the driving handle 243, therefore, both sides of the equipment box 10 can drive the screw 24 to rotate, the placement of the equipment cabinet 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 a tail portion of the lifting platform 21, so as to keep the stability of the counterweight selecting mechanism 20 and limit the movement of the counterweight selecting mechanism 20 in a vertical direction.

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

Elevating system 30 includes bull stick 31, pivot 32 and lantern ring 33, pivot 32 is installed the inside keeping away from of equipment box 10 the side of bench 50, bull stick 31 one end is rotated and is connected on pivot 32, lantern ring 33 slip cup joints on the bull stick 31, be connected with a universal joint 34 on the lantern ring 33, universal joint 34 through the roof 35 fixed mounting at top in the elevating platform 21 bottom, elevating platform 21 is the pterygoid form, roof 35 fixed mounting in the pterygoid side bottom of elevating platform 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 slidably sleeved on 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 sleeves 36 and the pivot 32, the sliding block 37 is rotatably connected to one side of the sliding sleeve 36 and slides in the vertical direction of the side wall of the equipment box body 10, the clamping block 38 is movably inserted in 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 by clamping with the parts of the side wall of the equipment box body 10 with different heights.

Specifically, the equipment box 10 and two adjacent side walls on the side where the stool 50 is placed are symmetrical and respectively provided with a vertical groove 17 and a plurality of clamping grooves 18 which are spaced and vertically arranged, the clamping grooves 18 are located on the side of the vertical groove 17 and are communicated with the vertical groove 17, the sliding block 37 is slidably connected in the vertical groove 17, after a part of the clamping blocks 38 horizontally slide out of the sliding block 37, the height of the counterweight selecting mechanism 20 is adjusted by clamping with the clamping grooves 18 with different heights, a pushing handle 381 is arranged on the outer side of the clamping blocks 38 and can be used for pushing the sliding block 37 to move up and down in the vertical groove 17 or pushing the clamping blocks 38 to insert a part of the clamping blocks 38 into the clamping grooves 18, corresponding weight character marks can be marked on the side 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 block 42 selected at the height, and the weight is gradually increased from top to bottom.

It should be noted that, the lifting mechanism 30 is used for manually adjusting the height of the counterweight selecting mechanism 20, and when arm weight training is required, the lifting mechanism 30 is used for adjusting the height of the counterweight selecting mechanism 20, specifically: according to the weight character mark beside the slot 18, the slider 37 is pushed to adjust the height of the clamping block 38 to the weight slot 18 to be trained, then the clamping block 38 is pushed into the corresponding slot 18 transversely, the rotating rod 31 is driven by the slider 37 to rotate upwards or downwards around the pivot 32, the rotating rod 31 drives the counterweight selecting mechanism 20 to move together through the lantern ring 33, the counterweight selecting mechanism 20 can move 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 slot 18, the counterweight selecting mechanism 20 also drives the bolt 26 to reach the height of the corresponding counterweight 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 this time, the bolt 26 is inserted below the hanging frame 41 and the counterweight 42 to be selected (and the counterweight 42 to be selected is added thereon The weights of all the counter weights 42 and the hanging frame 41 are the weights selected in the training), and then the training operation is performed; after the arm weight training is completed, the driving handle 243 of the screw 24 is rotated to realize the withdrawing action of the bolt 26, and then the sliding block 37 is pushed to the bottommost part of the vertical groove 17, so that the counterweight selecting mechanism 20 falls to the ground.

In order to realize convenient and effective selection of the training counter weight, the counter weight selecting mechanism 20 is sleeved outside the counter weight mechanism 40, the screw 24 of the weight selection mechanism 20 is driven to rotate by manually rotating the drive handle 243 outside the equipment cabinet 10 through an angle, thereby driving the gear 23 to rotate, and the inclined arc groove 231 on the rotating gear 23 pushes the push rod 25 to move towards the center of the sleeve 22, the bolt 26 is further inserted between the hanging frame 41 and the counterweight 42 to achieve counterweight selection, and further, because the bolt 26 is connected with the push rod 25 through magnetic force, when the hanging frame 41 is pulled in training, is convenient to separate from the push rod 25, can be conveniently and quickly sucked out by magnetic force after training is finished, separated from the hanging frame 41 and the balancing weight 42, thereby conveniently and effectively realizing the selection of the balancing weight during training and the reset operation after the training is finished.

In order to realize convenient and effective adjustment of the height of the counter weight selecting mechanism 20, two synchronous lifting mechanisms 30 are arranged on two sides of the counter weight selecting mechanism 20, the height of the sliding block 37 is manually adjusted to drive the rotating rod 31 to rotate on a vertical surface around a pivot 32, so as to drive the height of the counter weight selecting mechanism 20 to move in the vertical direction, and after the fixture block 38 in the sliding block 37 is manually pushed into the fixture groove 18, the counter weight selecting mechanism 20 can be stabilized at a certain height, so as to realize convenient and effective adjustment of the height of the counter weight selecting mechanism 20, wherein, as the counter 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 counter weight selecting mechanism 20 is limited by the guide column 27, when the rotating rod 31 rotates, the counterweight selecting mechanism 20 only absorbs the displacement of the rotating rod 31 in the vertical direction, and does not move synchronously with the rotating rod 31, and because the sliding block 37 is rotatably connected to the sliding sleeve 36 on the rotating rod 31, when the sliding block 37 is limited to move in the vertical groove 17, the movement of the sliding sleeve 36 which rotates together with the rotating rod 31 and slides relatively is not limited.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

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

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

2. The device of claim 1, wherein the lifting mechanism comprises a pivot rod, a pivot shaft and a collar, the pivot shaft is installed inside the device box body on the side far away from the stool, one end of the pivot rod is rotatably connected to the pivot shaft, the collar is slidably sleeved on the pivot rod, a universal joint is connected to the collar, and the universal joint is fixedly installed at the bottom of the lifting platform through a top plate at the top.

3. The device for exercising arms of claim 2, wherein said lifting mechanism further comprises a sliding sleeve, a sliding block and a locking block, said sliding sleeve is slidably sleeved on said rotating rod, said sleeve ring is located between said sliding sleeve and said pivot, said sliding block is rotatably connected to one side of said sliding sleeve and slides in the vertical direction of the side wall of said equipment box, said locking block is movably inserted in said sliding block, and after a part of said locking block horizontally slides out of said sliding block, the height of said weight selecting mechanism is adjusted by being locked with the parts of said side wall of said equipment box with different heights.

4. The device for exercising arms as claimed in claim 3, wherein the device housing is symmetrical to the two side walls adjacent to the side where the stool is placed and has a vertical groove and a plurality of spaced and vertically arranged slots, the slots are located beside the vertical groove and are communicated with the vertical groove, the slider is slidably connected in the vertical groove, and after a part of the slider horizontally slides out of the slider, the height of the weight selecting mechanism is adjusted by being clamped with the slots with different heights.

5. The device for exercising arms of claim 3, wherein said two lifting mechanisms are symmetrically disposed on both sides of said weight selecting mechanism, and a connecting rod is connected between sliding sleeves of said two lifting mechanisms.

6. The device for exercising arms as claimed in claim 1, wherein the slanted arc groove is arc-shaped and is obliquely disposed on the gear wheel disc of the gear, the width of the slanted arc groove is the same as the diameter of the vertical section of the push rod, the radial distance between the two ends of the slanted arc groove on the gear is a predetermined distance, the predetermined distance is the distance of the push rod moving toward the center of the sleeve, the center of the gear is the center of the circle, the central angle between the two ends of the slanted arc groove is a predetermined angle, and the predetermined angle is the angle of the gear when the push rod pushes the bolt to be inserted into the side wall of the hanging frame and between the two adjacent counter weights.

7. The exerciser of claim 1, wherein the horizontal section of the push rod includes a magnetic section and a non-magnetic section, the non-magnetic section is integrally and vertically connected with the vertical section of the push rod, the magnetic section is a permanent magnet fixedly connected to the end of the non-magnetic section, the magnetic section is always retained in the sleeve, the pin is made of a magnetic material, and the sleeve, the push rod and the hanging frame are made of a non-magnetic material.

8. The device for exercising arms as claimed in claim 1, wherein the screw comprises an engaging section and a non-engaging section, the engaging section is engaged with the gear, the two non-engaging sections are respectively located at two ends of the engaging section and are respectively connected with the connecting section at the bottom of the lifting platform through bearings, the two non-engaging sections both penetrate through the side wall of the device box body and extend to the outside of the device box body, and a driving handle is connected to the end of the non-engaging section for manually driving the screw to rotate.

9. The device for exercising arms as claimed in claim 1, wherein said weight member has a cylindrical shape, a convex portion at the top and a concave portion at the bottom, and between two adjacent stacked weight members, the concave portion of the weight member at the upper layer is engaged with the convex portion of the weight member at the lower layer.

10. The physical arm exerciser of claim 1, wherein the side of the equipment box body on which the stool is placed is a groove-shaped groove, the stool is placed by being attached to the middle of the groove wall of the groove-shaped groove, the top of the two side walls of the groove-shaped groove is symmetrically provided with dovetail grooves, the dovetail sections of the dovetail grooves are opposite, a bearing plate is connected in the dovetail grooves in a sliding mode, the bottom of the opposite end of the bearing plate is pivoted with a supporting rod, the end of the supporting rod, far away from the bearing plate, is pivoted on a connecting block, the connecting block is connected with the side wall of the groove-shaped groove in a sliding mode, 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-shaped groove at intervals, and the first limiting hole and the second limiting holes are connected through limiting rods in a plugging mode.