CN113304434B - Gear switching system of fitness sports equipment - Google Patents
Gear switching system of fitness sports equipment Download PDFInfo
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- CN113304434B CN113304434B CN202110866277.2A CN202110866277A CN113304434B CN 113304434 B CN113304434 B CN 113304434B CN 202110866277 A CN202110866277 A CN 202110866277A CN 113304434 B CN113304434 B CN 113304434B
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- plate
- rope
- support
- sliding
- counterweight component
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/06—User-manipulated weights
- A63B21/062—User-manipulated weights including guide for vertical or non-vertical weights or array of weights to move against gravity forces
- A63B21/0626—User-manipulated weights including guide for vertical or non-vertical weights or array of weights to move against gravity forces with substantially vertical guiding means
- A63B21/0628—User-manipulated weights including guide for vertical or non-vertical weights or array of weights to move against gravity forces with substantially vertical guiding means for vertical array of weights
- A63B21/0632—User-manipulated weights including guide for vertical or non-vertical weights or array of weights to move against gravity forces with substantially vertical guiding means for vertical array of weights the weights being lifted by rigid means
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/15—Arrangements for force transmissions
- A63B21/151—Using flexible elements for reciprocating movements, e.g. ropes or chains
- A63B21/154—Using flexible elements for reciprocating movements, e.g. ropes or chains using special pulley-assemblies
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Orthopedic Medicine & Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a gear switching system of fitness sports equipment, belonging to the technical field of fitness equipment, comprising a pulling device, a lifting device, a first counterweight component and a second counterweight component, wherein the pulling device, the lifting device, the first counterweight component and the second counterweight component are all positioned inside a gear switching system shell of the fitness sports equipment, the pulling device comprises a pull ring which is arranged outside the shell, the pull ring is arranged on a coil strip through a pull rope, the coil strip winds around a rotating shaft, the winding directions of the coil strip and a rope are opposite, the rope is wound on a plurality of fixed wheels, the fixed wheels are rotatably arranged on the shell, the first counterweight component and the second counterweight component are respectively arranged on the part of the rope between the two fixed wheels through the fixed wheels, the lifting device is arranged on the shell and used for realizing the lifting control of the first counterweight component, through a pulley mechanism, the control and the regulation of the tension are realized, the structure is ingenious, and the automation degree is high.
Description
Technical Field
The invention relates to the technical field of fitness equipment, in particular to a gear switching system of fitness sports equipment.
Background
Fitness equipment is widely popular with the masses, and is greatly helpful for building up the body, because the fitness equipment has wide audiences, a gear switching device needs to be arranged in the equipment to adapt to different requirements of different crowds, the force adjustment of the traditional fitness equipment is generally realized by adding and subtracting weight elements manually, the operation is complex, the prior art (CN 202021344438.9) relates to a gear adjusting device capable of adjusting a dumbbell, which comprises a handle, an index plate and a bell plate, the handle is a combination of a central shaft and a handle sleeve, the end parts of the two sides of the central shaft are provided with a clamp spring groove and a gear step from outside to inside, the central shaft is also connected with the index plate and a bell box, the index plate is provided with a lock plate positioning groove and a steel ball gear hole, the bell box is also connected with a bell box cover, the bell box cover is connected with a steel ball gear hole and a lock plate positioning groove, the adjusting device still needs manual operation, which brings inconvenience to use, therefore, the invention provides the gear switching system of the fitness sports equipment, which can automatically realize adjustment of gears, is convenient and fast, and has high automation degree.
Disclosure of Invention
Aiming at the technical problems, the technical scheme adopted by the invention is as follows: a gear switching system of fitness sports equipment comprises a pulling device, a lifting device, a first counterweight component and a second counterweight component, wherein the pulling device, the lifting device, the first counterweight component and the second counterweight component are arranged inside a shell of the gear switching system of the whole fitness sports equipment; the pulling device comprises a pull rope, a scroll and a rope, wherein the scroll is arranged on the shell, the pull rope and the rope are both rotatably arranged on the scroll, a pull ring is arranged at the end part of the pull rope, the winding directions of the pull rope and the rope are opposite, the pull rope is fixedly arranged on a winding tape, the winding tape is wound on the scroll, the rope is wound on a plurality of fixed wheels, and the fixed wheels are rotatably arranged inside the shell; the first counterweight component is arranged on the part of the rope between the two fixed wheels through the idler wheel; the second counterweight component is arranged on the rope and positioned between the two fixed wheels, and the lifting device is arranged on the shell and used for realizing the lifting control of the first counterweight component.
The first counterweight component comprises a clamping device and a connecting device, the second counterweight component comprises a second bracket, an intermediate plate and a sliding driving component, the intermediate plate is arranged in the middle of the second bracket, and the sliding driving component is arranged on the second bracket; connecting device include the connecting rod, connecting device is used for adjusting connecting rod inclination, the intermediate lamella on be equipped with the spread groove the same with connecting rod tip shape, clamping device between and all be equipped with the extrusion subassembly that is used for fixed link pole on the sliding drive subassembly, realize the fixed of first counter weight subassembly and second counter weight subassembly, second counter weight subassembly below is equipped with the balancing weight, and then realizes the gear and adjusts.
Further, elevating gear including the slip jack catch that is used for fixed gyro wheel, the slip jack catch pass through link mechanism slidable mounting on the mounting panel, link mechanism include carousel, carousel connecting rod, the carousel rotate and install on the mounting panel, the carousel passes through the carousel connecting rod to be connected with the slip jack catch of both sides, the line of two carousel connecting rods pin joints on the carousel is through the centre of a circle of carousel, the mounting panel is installed on the rack, through the lift of rack and pinion transmission control mounting panel.
Further, first counter weight subassembly still include first support, connecting device fixed mounting on first support, connecting device still include belt, chute board, the belt setting in the outside of live-rollers, the live-rollers rotates and installs on first support, the one side fixed connection of belt one end and chute board, the other end of belt and the another side fixed connection of chute board, the belt pass through the drive roller drive and rotate, connecting rod slidable mounting is in the chute board, clamping device install the both sides that are located connecting device on first support.
Further, clamping device include cylinder, articulated seat, cylinder fixed mounting on first support, articulated seat is installed and is served at the activity of cylinder, first connecting rod one end is articulated with the articulated seat of cylinder, other end slidable mounting is on first support, slide slidable mounting is in the bottom of first support, the slide links together through first spring and first support, the slide links together through connecting rope and articulated seat simultaneously.
Furthermore, the clamping devices on two sides of the first support are connected together through a connecting plate, an extrusion assembly is arranged on the connecting plate and comprises a second spring, a first sliding rod and a pressing plate, the first sliding rod is installed on the connecting plate, the pressing plate is installed on the first sliding rod in a sliding mode, and the second spring and the first sliding rod are coaxial and are fixedly installed on the connecting plate and the pressing plate.
Further, the slip drive assembly include pneumatic cylinder, swash plate, go up the mounting panel, pneumatic cylinder fixed mounting on the second support, go up mounting panel fixed mounting at the expansion end of pneumatic cylinder, second slide bar fixed mounting is on the swash plate, the fourth spring is coaxial with the second slide bar, goes up mounting panel slidable mounting on the second slide bar, fourth spring upper end fixed mounting is on last mounting panel, fourth spring lower extreme fixed mounting is on the swash plate, the balancing weight that contacts with the swash plate inclined plane also is the slope contact surface.
Furthermore, go up the mounting panel and link together through the second connecting rod between the balancing weight, second connecting rod slidable mounting is on the swash plate, the balancing weight passes through the third spring and links together with the second support.
Furthermore, the reaction force in the axial direction of the second sliding shaft generated by pushing the balancing weight to slide by the inclined plate is smaller than the acting force for deforming the fourth spring.
Compared with the prior art, the invention has the beneficial effects that: (1) the lifting device provided by the invention realizes automatic adjustment of the number of the pulleys, has an ingenious structure and does not need manual operation; (2) the first counterweight component realizes the automatic extension of the connecting rod, and the connecting rope controls the connection of the sliding plate and the second counterweight component, so that the structure is reliable; (3) the second counterweight component is connected and fixed with the first counterweight component, and simultaneously drives the counterweight block to slide, so that the stress is uniform, and the interior of the device is stable.
Drawings
Fig. 1 and 2 are schematic views of the overall structure of the present invention.
Fig. 3 is a schematic structural view of the lifting device of the present invention.
Fig. 4 is a schematic structural view of the first counterweight assembly and the second counterweight assembly according to the present invention.
Fig. 5-8 are schematic structural views of a first weight assembly of the present invention.
Fig. 9-11 are schematic structural views of a second weight assembly of the present invention.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Example (b): as shown in fig. 1 and fig. 2, a gear shift switching system for an exercise device comprises a pulling device 101, a lifting device 102, a first weight assembly 103, a second weight assembly 104, wherein the pulling device 101, the lifting device 102, the first weight assembly 103, and the second weight assembly 104 are all located inside a gear shift switching system housing of the exercise device, wherein the pulling device 101 comprises a pull ring 105, the pull ring 105 is disposed outside the housing, the pull ring 105 is mounted on a tape 108 through a pull rope 106, the tape 108 bypasses a rotating shaft 109, the rotating shaft 109 is rotatably mounted on a pulling bracket 107, the pulling bracket 107 is fixedly mounted on the housing, the tape 108 is wound on a reel 110, the reel 110 is rotatably mounted on the housing, a rope 111 is wound on the reel 110, the direction of the tape 108 is opposite to that of the rope 111, the rope 111 is wound on a plurality of fixed wheels 112, the fixed wheels 112 are rotatably mounted on the housing, the first counterweight component 103 is arranged on the rope 111 at the part between the two fixed wheels 112 through the fixed wheels 112, the second counterweight component 104 is also arranged on the rope 111 at the part between the two fixed wheels 112 through the fixed wheels 112, and the lifting device 102 is arranged on the shell and used for realizing the lifting control of the first counterweight component 103.
As shown in fig. 3, the lifting device 102 includes a sliding jaw 119, one end of the sliding jaw 119 is provided with a semi-arc structure for fixing a roller 122, the other end of the sliding jaw 119 is slidably mounted on a mounting plate 116, a turntable 117 is rotatably mounted on the mounting plate 116 through motor driving, one end of a turntable link 118 is rotatably mounted on the sliding jaw 119, the other end of the turntable link is rotatably mounted on the turntable 117, a connecting line of mounting positions of two turntable links 118 on the turntable 117 passes through a circle center of the turntable 117, the mounting plate 116 is fixedly mounted on a rack 113, the rack 113 is slidably mounted inside a housing, the rack 113 and a gear 114 form a rack-and-pinion transmission, the gear 114 is coaxially and fixedly mounted on the lifting motor 115, and the.
As shown in fig. 4-8, the first weight assembly 103 includes a clamping device 120, a connecting device 121, a roller 122, a first bracket 123, and a rotating frame 124, wherein the rotating frame 124 is fixedly installed on the upper portion of the first bracket 123, the roller 122 is rotatably installed on the rotating frame 124, the connecting device 121 is rotatably installed inside the first bracket 123, the clamping device 120 is installed on both sides of the first bracket 123, the connecting device 121 includes a chute plate 142, one end of a belt 137 is fixedly installed on one side of the chute plate 142, the other end of the belt 137 is fixedly installed on the other side of the chute plate 142, the belt 137 is disposed outside three rotating rollers 138, wherein at least one rotating roller 138 and the other two rotating rollers 138 are located on both sides of the chute plate 142, the rotating roller 138 is rotatably installed on the first bracket 123, a driving roller 139 is rotatably installed on the first bracket 123, the driving roller 139 forms a belt transmission with a driving wheel 141, the driving wheel 141 is coaxially and fixedly installed on an output shaft of the driving motor 140, the driving wheel 141 is rotatably installed on the first bracket 123, the driving roller 139 drives the belt 137 to rotate, so as to adjust the inclination angle of the chute board 142, and the connecting rod 136 is slidably installed inside the chute board 142.
In the clamping device 120, an air cylinder 125 is fixedly arranged at the outer side of a first support 123, a hinge seat 131 is fixedly arranged at the movable end of the air cylinder 125, one end of a first connecting rod 129 is rotatably arranged on the hinge seat 131, the other end of the first connecting rod is slidably arranged on the first support 123, one end of a connecting rope 126 is fixedly connected with the hinge seat 131, the other end of the connecting rope is fixedly arranged on a sliding plate 128, the sliding plate 128 is slidably arranged at the bottom of the first support 123, the sliding plate 128 is connected on the first support 123 through a first spring 127, the clamping devices 120 at two sides of the first support 123 are connected together through a connecting plate 130, an extruding component 132 is arranged on the connecting plate 130, the extruding component 132 comprises a second spring 133, a first sliding rod 134 and a pressing plate 135, the first sliding rod 134 is fixedly arranged on the connecting plate 130, the pressing plate 135 is slidably arranged on the first sliding rod 134, the second spring 133 is coaxial with the first sliding rod 134, one end of the second spring 133 is fixedly arranged on the connecting plate 130, the other end is fixedly mounted on the pressure plate 135.
The second counterweight assembly 104 shown in fig. 9-11 comprises a second bracket 143, a counterweight 146, and a sliding driving assembly 147, wherein the roller 122 is rotatably mounted on the second bracket 143, an intermediate plate 145 is fixedly mounted on the second bracket 143, a connecting groove 144 is provided on the intermediate plate 145, the counterweight 146 is slidably mounted at the bottom of the second bracket 143, the sliding driving assembly 147 is fixedly mounted on the second bracket 143, the counterweight 146 is mounted on the second bracket 143 through a third spring 150, the counterweight 146 is fixedly mounted on a sliding seat 149, the sliding seat 149 is slidably mounted at the bottom of the second bracket 143, a hydraulic cylinder 148 in the sliding driving assembly 147 is fixedly mounted on the second bracket 143, an upper mounting plate 155 is fixedly mounted at a movable end of the hydraulic cylinder 148, the upper mounting plate 155 is slidably mounted on a second sliding rod 154, a fourth spring 153 is coaxial with the second sliding rod 154, two ends of the fourth spring 153 are respectively fixedly mounted on the upper mounting plate 155 and the inclined plate 151, one end of the second connecting rod 152 is hinged to the upper mounting plate 155, the other end of the second connecting rod 152 is hinged to the sliding seat 149, the second connecting rod 152 is slidably mounted on the inclined plate 151, the upper mounting plate 155 is provided with the extrusion assembly 132, the inclined plate 151 and the sliding seat 149 are in inclined surface contact, and the reaction force in the axial direction of the second sliding rod 154 generated by the inclined plate 151 pushing the counterweight block 146 to slide is smaller than the acting force for deforming the fourth spring 153.
The working principle of the gear switching system of the fitness sports equipment disclosed by the invention is as follows: the system is divided into two working forms, one of which is as follows: the first weight component 103 is fixed through the lifting device 102, at this time, the pull ring 105 is pulled, the pulling force is 1/2 of the counterweight 146 on the second weight component 104, the sliding claw 119 slides towards two sides to release the first weight component 103, the connecting device 121 starts when the first weight component 103 slides downwards, the inclination angle of the chute plate 142 becomes larger, the connecting rod 136 slides out of the chute plate 142, the end part of the connecting rod 136 enters the connecting groove 144, the connecting rod 136 tends to be horizontal along with the descending of the first weight component 103, at this time, the clamping device 120 and the sliding driving component 147 start to clamp two ends of the connecting rod 136 through the squeezing component 132, at the same time, the connecting rope 126 in the clamping device 120 is loosened, the sliding plate 128 slides under the action of the first spring 127 to be connected with the second weight component 104, on the other hand, the sliding driving component 147 acts to realize the sliding of the counterweight 146 through the descending of the inclined plate 151, when the inclined plate 151 is in contact with the bottom of the second bracket 143, the upper mounting plate 155 slides on the second sliding rod 154, and the second connecting rod 152 is used to push the weight 146 continuously, so that the weight 146 is located between the first weight assembly 103 and the second weight assembly 104.
The present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make various modifications without creative efforts from the above-described conception and fall within the scope of the present invention.
Claims (8)
1. The utility model provides a gear shift system of body-building sport equipment, includes pulling device, elevating gear, first counter weight subassembly, second counter weight subassembly, its characterized in that: the pulling device, the lifting device, the first counterweight component and the second counterweight component are arranged inside a shell of a gear switching system of the whole body-building sports apparatus; the pulling device comprises a pull rope, a scroll and a rope, wherein the scroll is arranged on the shell, the pull rope and the rope are both rotatably arranged on the scroll, a pull ring is arranged at the end part of the pull rope, the winding directions of the pull rope and the rope are opposite, the pull rope is fixedly arranged on a winding tape, the winding tape is wound on the scroll, the rope is wound on a plurality of fixed wheels, and the fixed wheels are rotatably arranged inside the shell; the first counterweight component is arranged on the part of the rope between the two fixed wheels through the idler wheel; the second counterweight component is arranged on the rope at the part between the two fixed wheels, and the lifting device is arranged on the shell and used for realizing the lifting control of the first counterweight component;
the first counterweight component comprises a clamping device and a connecting device, the second counterweight component comprises a second bracket, an intermediate plate and a sliding driving component, the intermediate plate is arranged in the middle of the second bracket, and the sliding driving component is arranged on the second bracket; connecting device include the connecting rod, connecting device is used for adjusting connecting rod inclination, the intermediate lamella on be equipped with the spread groove the same with connecting rod tip shape, clamping device between and all be equipped with the extrusion subassembly that is used for fixed link pole on the sliding drive subassembly, realize the fixed of first counter weight subassembly and second counter weight subassembly, second counter weight subassembly below is equipped with the balancing weight, and then realizes the gear and adjusts.
2. The shift-position switching system for an exercise machine according to claim 1, wherein: elevating gear including the slip jack catch that is used for fixed gyro wheel, the slip jack catch pass through link mechanism slidable mounting on the mounting panel, link mechanism include carousel, carousel connecting rod, the carousel rotate and install on the mounting panel, the carousel passes through the carousel connecting rod to be connected with the slip jack catch of both sides, the line of two carousel connecting rods pin joints on the carousel is through the centre of a circle of carousel, the mounting panel is installed on the rack, through the lift of rack and pinion transmission control mounting panel.
3. The shift-position switching system for an exercise machine according to claim 1, wherein: first counter weight subassembly still include first support, connecting device fixed mounting on first support, connecting device still include belt, chute board, the belt setting in the outside of live-rollers, the live-rollers rotates and installs on first support, the one side fixed connection of belt one end and chute board, the other end of belt and the another side fixed connection of chute board, the belt pass through the drive roller drive and rotate, connecting rod slidable mounting is in the chute board, clamping device install the both sides that are located connecting device on first support.
4. The shift-position switching system for an exercise machine according to claim 3, wherein: clamping device include the cylinder, articulate the seat, cylinder fixed mounting on first support, articulate the seat and install on the activity of cylinder is served, first connecting rod one end is articulated with the articulated seat of cylinder, other end slidable mounting is on first support, slide slidable mounting is in the bottom of first support, the slide links together through first spring and first support, the slide links together through connecting rope and articulating the seat simultaneously.
5. The system of claim 4, wherein the gear shifting system comprises: the clamping devices on two sides of the first support are connected together through a connecting plate, an extrusion assembly is arranged on the connecting plate and comprises a second spring, a first sliding rod and a pressing plate, the first sliding rod is installed on the connecting plate, the pressing plate is installed on the first sliding rod in a sliding mode, and the second spring and the first sliding rod are coaxial and are fixedly installed on the connecting plate and the pressing plate.
6. The shift-position switching system for an exercise machine according to claim 1, wherein: the sliding driving assembly comprises a hydraulic cylinder, an inclined plate and an upper mounting plate, the hydraulic cylinder is fixedly mounted on the second support, the upper mounting plate is fixedly mounted at the movable end of the hydraulic cylinder, the second sliding rod is fixedly mounted on the inclined plate, the fourth spring is coaxial with the second sliding rod, the upper mounting plate is slidably mounted on the second sliding rod, the upper end of the fourth spring is fixedly mounted on the upper mounting plate, the lower end of the fourth spring is fixedly mounted on the inclined plate, and a balancing weight which is in contact with the inclined surface of the inclined plate is also an inclined contact surface.
7. The system of claim 6, wherein the gear shifting system comprises: the upper mounting plate is connected with the balancing weight through a second connecting rod, the second connecting rod is slidably mounted on the inclined plate, and the balancing weight is connected with the second support through a third spring.
8. The system of claim 6, wherein the gear shifting system comprises: the reaction force in the axial direction of the second sliding shaft generated by pushing the balancing weight to slide by the inclined plate is smaller than the acting force for deforming the fourth spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110866277.2A CN113304434B (en) | 2021-07-29 | 2021-07-29 | Gear switching system of fitness sports equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110866277.2A CN113304434B (en) | 2021-07-29 | 2021-07-29 | Gear switching system of fitness sports equipment |
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| CN113304434A CN113304434A (en) | 2021-08-27 |
| CN113304434B true CN113304434B (en) | 2021-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110866277.2A Active CN113304434B (en) | 2021-07-29 | 2021-07-29 | Gear switching system of fitness sports equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114477486A (en) * | 2022-01-10 | 2022-05-13 | 杨建华 | Large-scale kitchen skill landfill leachate treatment facility |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5951444A (en) * | 1997-11-24 | 1999-09-14 | Webber; Randall T. | Cable and pulley linkage for exercise machine |
| US6719672B1 (en) * | 2000-11-16 | 2004-04-13 | Northland Industries, Inc. | Dual weight stack exercising machine with coupling arrangement |
| CN206198543U (en) * | 2016-11-23 | 2017-05-31 | 吴廉卿 | A kind of body-building apparatus counter-balanced carriage |
| CN109925671A (en) * | 2017-12-15 | 2019-06-25 | 郭皓 | A kind of arm muscle exerciser |
| CN209048976U (en) * | 2018-09-19 | 2019-07-02 | 山东银蕨健康科技有限公司 | A kind of intelligent counterweight module for health and fitness facilities |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4054784B2 (en) * | 2004-07-28 | 2008-03-05 | 整 松本 | Training device for strengthening trunk muscles |
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2021
- 2021-07-29 CN CN202110866277.2A patent/CN113304434B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5951444A (en) * | 1997-11-24 | 1999-09-14 | Webber; Randall T. | Cable and pulley linkage for exercise machine |
| US6719672B1 (en) * | 2000-11-16 | 2004-04-13 | Northland Industries, Inc. | Dual weight stack exercising machine with coupling arrangement |
| CN206198543U (en) * | 2016-11-23 | 2017-05-31 | 吴廉卿 | A kind of body-building apparatus counter-balanced carriage |
| CN109925671A (en) * | 2017-12-15 | 2019-06-25 | 郭皓 | A kind of arm muscle exerciser |
| CN209048976U (en) * | 2018-09-19 | 2019-07-02 | 山东银蕨健康科技有限公司 | A kind of intelligent counterweight module for health and fitness facilities |
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| CN113304434A (en) | 2021-08-27 |
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