CN112972992A - Chest expander capable of automatically lightening balance weight - Google Patents

Chest expander capable of automatically lightening balance weight Download PDF

Info

Publication number
CN112972992A
CN112972992A CN202110315541.3A CN202110315541A CN112972992A CN 112972992 A CN112972992 A CN 112972992A CN 202110315541 A CN202110315541 A CN 202110315541A CN 112972992 A CN112972992 A CN 112972992A
Authority
CN
China
Prior art keywords
block
cavity
adjusting
adjusting block
counter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202110315541.3A
Other languages
Chinese (zh)
Inventor
冯祥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Zhoujifei Trading Co ltd
Original Assignee
Shenzhen Zhoujifei Trading Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Zhoujifei Trading Co ltd filed Critical Shenzhen Zhoujifei Trading Co ltd
Priority to CN202110315541.3A priority Critical patent/CN112972992A/en
Publication of CN112972992A publication Critical patent/CN112972992A/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/00058Mechanical means for varying the resistance
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/06User-manipulated weights
    • A63B21/062User-manipulated weights including guide for vertical or non-vertical weights or array of weights to move against gravity forces
    • A63B21/0626User-manipulated weights including guide for vertical or non-vertical weights or array of weights to move against gravity forces with substantially vertical guiding means
    • A63B21/0628User-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
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B23/00Exercising apparatus specially adapted for particular parts of the body
    • A63B23/035Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously
    • A63B23/12Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for upper limbs or related muscles, e.g. chest, upper back or shoulder muscles
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B24/00Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
    • A63B24/0087Electric or electronic controls for exercising apparatus of groups A63B21/00 - A63B23/00, e.g. controlling load
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B24/00Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
    • A63B24/0087Electric or electronic controls for exercising apparatus of groups A63B21/00 - A63B23/00, e.g. controlling load
    • A63B2024/0093Electric or electronic controls for exercising apparatus of groups A63B21/00 - A63B23/00, e.g. controlling load the load of the exercise apparatus being controlled by performance parameters, e.g. distance or speed
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2220/00Measuring of physical parameters relating to sporting activity
    • A63B2220/17Counting, e.g. counting periodical movements, revolutions or cycles, or including further data processing to determine distances or speed

Abstract

The embodiment of the invention discloses a chest expander capable of automatically lightening a balance weight, which comprises a main cover body, a balance weight box body positioned on the lower side of the main cover body and a balance weight pin positioned in the balance weight box body; the motor is fixedly arranged in the main cover body, and the main cover body is fixedly connected with the counterweight box body; a plurality of continuous counter weights are arranged in the counter weight box body up and down, and counter weight pin cavities which penetrate through the counter weights up and down are arranged in the counter weights; the balance weight pin penetrates through all the balance weight pin cavities, the balance weight pin is internally provided with the adjusting rod, and the tail end of the lower side of the adjusting rod is fixedly connected with the active adjusting block.

Description

Chest expander capable of automatically lightening balance weight
Technical Field
The embodiment of the invention relates to the related technical field of fitness equipment, in particular to a chest expander capable of automatically lightening a balance weight.
Background
The chest expander is common body-building apparatus in the gymnasium, and most chest expanders can't be accurate when being used at present judge that fitness person's physical power descends to some extent, and when the physical power of fitness person descends, when doing next a set of action, probably because of excessively taking exercise and causing the hidden danger that the muscle was strained, on the other hand, if want to adjust the counter weight after physical power descends now, need carry out manual regulation, can increase certain exercise time like this or reduce the time of having a rest in taking exercise.
Disclosure of Invention
Therefore, the chest expander capable of automatically lightening the counter weight is provided by the embodiment of the invention, and the problems that the chest expander cannot judge whether the physical strength of a body builder is reduced and cannot automatically adjust the counter weight are solved.
In order to achieve the above object, an embodiment of the present invention provides the following:
a chest expander capable of automatically lightening a counterweight comprises a main cover body, a counterweight box body positioned on the lower side of the main cover body and a counterweight pin positioned in the counterweight box body;
the main cover body is fixedly provided with a motor and is fixedly connected with the counterweight box body;
a plurality of balancing weights are continuously arranged in the balancing box body from top to bottom, and balancing weight pin cavities which penetrate through the balancing weights from top to bottom are formed in the balancing weights;
the balance weight pin penetrates through all the balance weight pin cavities, an adjusting rod is arranged in the balance weight pin, and a driving adjusting block is fixedly connected to the tail end of the lower side of the adjusting rod.
On the basis of the technical scheme, be equipped with the line wheel chamber in the main lid body, line wheel chamber right side is equipped with the torsional spring chamber, line wheel chamber left side is equipped with the clutch blocks chamber, motor left end face fixed connection is equipped with and extends to run through left the torsional spring chamber with line wheel chamber extremely the transmission shaft of clutch blocks intracavity, the transmission shaft with fixed connection is equipped with the torsional spring between the end wall of torsional spring chamber, fixed connection is equipped with and is located line wheel of line wheel intracavity, the terminal fixed connection in transmission shaft left side is equipped with driven restriction piece, the connection of clutch blocks intracavity sliding fit be equipped with can with the initiative friction block of driven restriction piece butt, initiative friction block left end face with it is fixed through the clutch blocks spring between the end wall of clutch blocks chamber left side.
On the basis of the technical scheme, the internal counter weight chamber that runs through about being equipped with of weight box, the balancing weight with counter weight chamber sliding connection, counter weight chamber rear side intercommunication is equipped with the contact counter chamber, counter weight chamber downside intercommunication is equipped with counter weight round pin butt chamber, counter weight round pin butt chamber left side intercommunication is equipped with the clamp plate piece chamber, clamp plate piece intracavity sliding fit connect be equipped with can with the clamp plate piece of counter weight round pin butt, the clamp plate piece with it is fixed through the clamp plate piece stay cord between the initiative friction block, but contact counter intracavity sliding fit connect be equipped with can with the contact counter of balancing weight contact, contact counter rear end face with it is fixed through the counter spring between the contact counter chamber rear end wall.
On the basis of the technical scheme, the balance weight is sold the regulating block butt chamber that the intercommunication was equipped with the symmetry and set up around the chamber, be equipped with a plurality ofly in the balance weight round pin with adjust the pole as the center around the symmetry set up and with the corresponding regulating block chamber in regulating block butt chamber, run through from top to bottom in the balance weight round pin the initiative regulating block chamber in regulating block chamber, the initiative regulating block with initiative regulating block chamber sliding fit connects, regulating block intracavity sliding fit connects and is equipped with the regulating block that can get into regulating block butt intracavity, the regulating block is close to adjust the pole side end with the regulating block chamber is close to it is fixed through bilateral symmetry's regulating block spring between the pole side end wall to adjust.
On the basis of the technical scheme, the adjusting block is internally provided with a groove which is positioned between the adjusting block springs on the two sides.
On the basis of the technical scheme, the tail end of the upper side of the adjusting rod is fixedly connected with an adjusting pressing plate, the adjusting pressing plate is fixedly connected with the wire wheels and provided with an adjusting pressing plate pull rope, and the upper end face of the balance weight pin is fixedly connected with a fixing block.
On the basis of the technical scheme, a pull ring is arranged on the lower side of the main cover body, a contact sensor is fixed in the pull ring, the pull ring and the fixed block are fixed through a pull ring pull rope, and the motor can freely rotate in a stop state.
On the basis of the technical scheme, the active adjusting block is arranged by inclined planes on two sides, so that the active adjusting block can overcome the tension of the adjusting block spring to eject the adjusting block, and the active adjusting block can be abutted to the groove of the adjusting block.
On the basis of the technical scheme, the friction block spring is in a compression state, the torsion spring is in a force storage state, the active adjusting block is located at the lowest side, and the torsion of the torsion spring is smaller than the friction force between the adjusting block and the active adjusting block.
The embodiment of the invention has the following advantages: the contact counter detects the contact frequency of the balancing weight to judge whether the physical strength of the exerciser is reduced or not, and when the physical strength of the exerciser is reduced, the active adjusting block is pulled by the adjusting rod to adjust the balancing weight lightly in the rest process, so that the problem of muscle strain of the exerciser caused by over exercise is avoided, and a certain exercise time or the rest time during exercise can be reduced by automatic adjustment.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the specification are only used for matching with the contents disclosed in the specification, so that those skilled in the art can understand and read the invention, and do not limit the limit conditions of the invention, so that the invention has no technical essence, and any structural modification, ratio relationship change or size adjustment should still fall within the scope of the technical contents disclosed in the invention without affecting the efficacy and the achievable purpose of the invention.
Fig. 1 is a schematic view of the overall structure of a chest expander capable of automatically lightening a weight according to an embodiment of the present invention.
Fig. 2 is a schematic sectional view of the structure in the direction of a-a in fig. 1.
Fig. 3 is a schematic sectional view of fig. 2 taken along the direction B-B.
Fig. 4 is an enlarged schematic view of the structure at C in fig. 1.
Fig. 5 is a schematic view of the overall three-dimensional structure of fig. 1.
Detailed Description
While embodiments of the present invention will be described with reference to particular embodiments, those skilled in the art will readily appreciate that the present invention has additional advantages and benefits that may be realized from the teachings herein, and that the embodiments described are only a few, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 5, the present invention provides an automatic counterweight-reducing chest expander, which comprises a main cover 10, a counterweight housing 30 located at the lower side of the main cover 10, and a counterweight pin 50 located in the counterweight housing 30;
the motor 20 is fixedly arranged in the main cover body 10, and the main cover body 10 is fixedly connected with the counterweight box body 30;
a plurality of balancing weights 40 are continuously arranged in the balancing weight box body 30 from top to bottom, and balancing weight pin cavities 42 which penetrate through the balancing weights 40 from top to bottom are arranged in the balancing weights 40;
the balance weight pin 50 penetrates through all the balance weight pin cavities 42, an adjusting rod 56 is arranged in the balance weight pin 50, and the tail end of the lower side of the adjusting rod 56 is fixedly connected with an active adjusting block 55.
Be equipped with wire wheel chamber 19 in the main lid body 10, wire wheel chamber 19 right side is equipped with torsional spring chamber 12, wire wheel chamber 19 left side is equipped with clutch block chamber 17, motor 20 left end face fixed connection is equipped with and extends to run through left torsional spring chamber 12 with wire wheel chamber 19 extremely transmission shaft 13 in the clutch block chamber 17, transmission shaft 13 with fixed connection is equipped with torsional spring 11 between the end wall of torsional spring chamber 12, fixed connection is equipped with and is located on the transmission shaft 13 wire wheel 18 in the wire wheel chamber 19, the terminal fixed connection in transmission shaft 13 left side is equipped with driven restriction piece 14, sliding fit connection is equipped with in the clutch block chamber 17 can with the initiative friction block 15 of driven restriction piece 14 butt, initiative friction block 15 left end face with it is fixed through friction block spring 16 between the end wall of clutch block chamber 17.
The counter weight box body 30 is internally provided with a counter weight cavity 34 which penetrates through the left and right, the counter weight 40 is connected with the counter weight cavity 34 in a sliding mode, the rear side of the counter weight cavity 34 is communicated with a contact counter cavity 32, the lower side of the counter weight cavity 34 is communicated with a counter weight pin abutting cavity 37, the left side of the counter weight pin abutting cavity 37 is communicated with a press plate cavity 36, a press plate block 38 which can abut against the counter weight pin 50 is arranged in the press plate cavity 36 in a sliding fit connection mode, the press plate block 38 is fixed with the active friction block 15 through a press plate block pull rope 35, a contact counter 33 which can be in contact with the counter weight 40 is arranged in the contact counter cavity 32 in a sliding fit connection mode, and the rear end face of the contact counter 33 is fixed with the rear end wall of the.
The utility model discloses a balance weight pin, including balance weight pin chamber 42, balance weight pin 50, adjusting block butt chamber 41 that the intercommunication was equipped with the symmetry and sets up around the balance weight pin chamber 42, be equipped with in the balance weight pin 50 a plurality of with adjust pole 56 as the center around the symmetry set up and with the corresponding adjusting block chamber 51 in adjusting block butt chamber 41, be equipped with in the balance weight pin 50 and run through from top to bottom the initiative adjusting block chamber 54 in adjusting block chamber 51, initiative adjusting block 55 with initiative adjusting block chamber 54 sliding fit connects, sliding fit connects in adjusting block chamber 51 is equipped with the adjusting block 53 that can get into in adjusting block butt chamber 41, adjusting block 53 is close to adjust pole 56 side end with adjusting block chamber 51 is close to it is fixed through bilateral symmetry's adjusting block spring 52 between the 56 side end wall to.
The adjusting block 53 is provided with a groove therein, and the groove is positioned between the adjusting block springs 52 on the two sides.
The tail end of the upper side of the adjusting rod 56 is fixedly connected with an adjusting pressure plate 57, an adjusting pressure plate pull rope 58 is fixedly connected between the adjusting pressure plate 57 and the wire wheel 18, and the upper end face of the balance weight pin 50 is fixedly connected with a fixing block 43.
A pull ring 22 is disposed at the lower side of the main cover body 10, a contact sensor 23 is fixed in the pull ring 22, the pull ring 22 and the fixed block 43 are fixed by a pull ring pull rope 44, and the motor 20 can rotate freely when the motor is stopped.
The active adjusting block 55 is arranged by inclined planes at two sides, so that the active adjusting block 55 can overcome the tension of the adjusting block spring 52 to eject the adjusting block 53, and the active adjusting block 55 can be abutted to the groove of the adjusting block 53.
The friction block spring 16 is in a compressed state, the torsion spring 11 is in a force accumulation state, the active adjusting block 55 is located at the lowest side, and the torsion of the torsion spring 11 is smaller than the friction force between the adjusting block 53 and the active adjusting block 55.
When the invention is used, the active friction block 15 is not contacted with the driven limiting block 14 in the initial state, when an exerciser starts to exercise, the adjusting pressure plate 57 can be manually pressed or pulled out, the adjusting pressure plate 57 drives the active adjusting block 55 to move up and down through the adjusting rod 56, the active adjusting block 55 moves up and down through the inclined surface thereof, the adjusting block 53 overcomes the pulling force of the corresponding adjusting block spring 52 and moves into the corresponding adjusting block abutting cavity 41 to adjust the balance weight required by the exerciser, because the active friction block 15 is not abutted with the driven limiting block 14 at the moment, the transmission shaft 13 can rotate freely, when the adjusting pressure plate 57 is pressed down, the wire wheel 18 is driven to rotate through the adjusting pressure plate pull rope 58, the wire wheel 18 rotates to drive the transmission shaft 13 to overcome the torsion of the torsion spring 11, when the adjusting pressure plate 57 is pulled up, the adjusting pressure plate pull rope 58 is in the relaxed state, the wire wheel 18 is driven to rotate through the transmission shaft 13 under the, the adjusting pressure plate pull rope 58 is always in a tensioned state, then the pull ring 22 can be pulled to pull the fixed block 43 and the corresponding counter weight block 40 through the pull ring pull rope 44 to start exercise, at the moment, the counter weight pin 50 moves upwards and is not limited to the pressure plate block 38, the driving friction block 15 is abutted to the driven limiting block 14 under the thrust action of the friction block spring 16, and the transmission shaft 13 and the reel 18 cannot rotate;
when the exerciser contacts 23 with the hands at the beginning of exercise, the contact counter 33 can start working, and when the exerciser pulls the counterweight to make the uppermost counterweight block 40 not contact with the contact counter 33 for a plurality of times, the physical strength of the exerciser is reduced;
during the middle rest after the physical strength of the exerciser is reduced, namely the hands leave the contact sensor 23, at the moment, the motor 20 is started, the contact counter 33 stops working, the motor 20 rotates to drive the transmission shaft 13 to rotate, the transmission shaft 13 rotates to drive the reel 18 to rotate, the reel 18 rotates to pull the adjusting pressure plate 57 to move upwards through the adjusting pressure plate pull rope 58, the adjusting pressure plate 57 moves upwards to drive the active adjusting block 55 to move upwards through the adjusting rod 56, the active adjusting block 55 moves upwards to enable the active adjusting block 55 to be abutted against the groove of the next adjusting block 53, so that the adjusting block 53 overcomes the pulling force of the corresponding adjusting block spring 52 to be abutted against the abutting cavity 41 of the corresponding adjusting block, at the moment, the motor 20 stops rotating, namely, the balance weight of the next group during exercise is automatically reduced;
although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims (9)

1. The utility model provides a can alleviate chest expander of counter weight automatically which characterized in that: comprises a main cover body (10), a counterweight box body (30) positioned at the lower side of the main cover body (10) and a counterweight pin (50) positioned in the counterweight box body (30);
the motor (20) is fixedly arranged in the main cover body (10), and the main cover body (10) is fixedly connected with the counterweight box body (30);
a plurality of balancing weights (40) are continuously arranged in the balancing weight box body (30) from top to bottom, and balancing weight pin cavities (42) which penetrate through the balancing weights (40) from top to bottom are arranged in the balancing weights (40);
the balance weight pin (50) penetrates through all the balance weight pin cavities (42), an adjusting rod (56) is arranged in the balance weight pin (50), and a driving adjusting block (55) is fixedly connected to the tail end of the lower side of the adjusting rod (56).
2. The chest expander capable of automatically lightening the balance weight according to claim 1, wherein a wire wheel cavity (19) is arranged in the main cover body (10), a torsion spring cavity (12) is arranged on the right side of the wire wheel cavity (19), a friction block cavity (17) is arranged on the left side of the wire wheel cavity (19), a transmission shaft (13) which extends through the torsion spring cavity (12) and the wire wheel cavity (19) to the inside of the friction block cavity (17) is fixedly connected to the left end face of the motor (20), a torsion spring (11) is fixedly connected between the transmission shaft (13) and the end wall of the torsion spring cavity (12), a wire wheel (18) which is positioned in the wire wheel cavity (19) is fixedly connected to the upper end of the transmission shaft (13), a driven limit block (14) is fixedly connected to the left end of the transmission shaft (13), a driving friction block (15) which can abut against the driven limit block (14) is arranged in the friction block cavity (17) in a sliding fit connection manner, the left end face of the active friction block (15) and the left end wall of the friction block cavity (17) are fixed through a friction block spring (16).
3. The chest expander capable of automatically lightening the counter weight is characterized in that a counter weight cavity (34) penetrating from left to right is arranged in the counter weight box body (30), the counter weight block (40) is in sliding connection with the counter weight cavity (34), a contact counter cavity (32) is communicated and arranged at the rear side of the counter weight cavity (34), a counter weight pin abutting cavity (37) is communicated and arranged at the lower side of the counter weight cavity (34), a pressing plate block cavity (36) is communicated and arranged at the left side of the counter weight pin abutting cavity (37), a pressing plate block (38) capable of abutting against the counter weight pin (50) is connected and arranged in the pressing plate block cavity (36) in a sliding fit manner, the pressing plate block (38) and the driving friction block (15) are fixed through a pressing plate block pull rope (35), and a contact counter (33) capable of contacting with the counter weight block (40) is connected and arranged in the contact counter cavity (32) in a sliding fit, the rear end face of the contact counter (33) and the rear end wall of the contact counter cavity (32) are fixed through a counter spring (31).
4. An automatically counterweighted chest expander as recited in claim 1, the front and the back of the counterweight pin cavity (42) are communicated with symmetrically arranged adjusting block abutting cavities (41), a plurality of adjusting block cavities (51) which are symmetrically arranged in front and back by taking the adjusting rod (56) as a center and correspond to the adjusting block abutting cavities (41) are arranged in the counterweight pin (50), an active adjusting block cavity (54) which vertically penetrates through the adjusting block cavity (51) is arranged in the counterweight pin (50), the active adjusting block (55) is connected with the active adjusting block cavity (54) in a sliding fit manner, the adjusting block cavity (51) is internally provided with an adjusting block (53) which can enter the adjusting block abutting cavity (41) in a sliding fit connection way, the adjusting block (53) is close to the end face of the adjusting rod (56) side and the adjusting block cavity (51) is close to the end wall of the adjusting rod (56) side, and the adjusting block cavity are fixed through adjusting block springs (52) which are bilaterally symmetrical.
5. An automatically lightened chest expander according to claim 4, wherein said adjustment block (53) is provided with a recess therein, said recess being located between said adjustment block springs (52) on both sides.
6. The chest expander capable of automatically lightening the counter weight is characterized in that the tail end of the upper side of the adjusting rod (56) is fixedly connected with an adjusting pressure plate (57), an adjusting pressure plate pull rope (58) is fixedly connected between the adjusting pressure plate (57) and the wire wheel (18), and a fixed block (43) is fixedly connected to the upper end face of the counter weight pin (50).
7. An automatic weight-reducing spring exerciser according to claim 1, wherein the main body (10) has a pull ring (22) on the underside thereof, a contact sensor (23) is fixed in the pull ring (22), the pull ring (22) and the fixed block (43) are fixed by a pull ring pull rope (44), and the motor (20) is freely rotatable in a stopped state.
8. An automatic weight-reducing chest expander according to claim 1, wherein said active adjusting block (55) is provided with two inclined sides so that it can push out the adjusting block (53) against the pulling force of the adjusting block spring (52), and said active adjusting block (55) can abut against the groove of said adjusting block (53).
9. An automatically counterweighted spring exerciser according to claim 2, wherein the friction pad spring (16) is in compression, the torsion spring (11) is in force accumulation, the active adjustment pad (55) is lowermost, and the torsion force of the torsion spring (11) is less than the friction force between the adjustment pad (53) and the active adjustment pad (55).
CN202110315541.3A 2021-03-24 2021-03-24 Chest expander capable of automatically lightening balance weight Withdrawn CN112972992A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110315541.3A CN112972992A (en) 2021-03-24 2021-03-24 Chest expander capable of automatically lightening balance weight

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110315541.3A CN112972992A (en) 2021-03-24 2021-03-24 Chest expander capable of automatically lightening balance weight

Publications (1)

Publication Number Publication Date
CN112972992A true CN112972992A (en) 2021-06-18

Family

ID=76333444

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110315541.3A Withdrawn CN112972992A (en) 2021-03-24 2021-03-24 Chest expander capable of automatically lightening balance weight

Country Status (1)

Country Link
CN (1) CN112972992A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113457109A (en) * 2021-07-10 2021-10-01 姜彦竹 Cloud computing monitoring device for body building of disabled people
CN114681873A (en) * 2022-02-10 2022-07-01 杭州景而腾科技有限公司 Counter for high-tension back trainer
CN117046049A (en) * 2023-09-01 2023-11-14 青岛康顿健康产业有限公司 High arm muscle exercise equipment of security

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113457109A (en) * 2021-07-10 2021-10-01 姜彦竹 Cloud computing monitoring device for body building of disabled people
CN114681873A (en) * 2022-02-10 2022-07-01 杭州景而腾科技有限公司 Counter for high-tension back trainer
CN117046049A (en) * 2023-09-01 2023-11-14 青岛康顿健康产业有限公司 High arm muscle exercise equipment of security
CN117046049B (en) * 2023-09-01 2024-03-15 青岛康顿健康产业有限公司 High arm muscle exercise equipment of security

Similar Documents

Publication Publication Date Title
CN112972992A (en) Chest expander capable of automatically lightening balance weight
CN104955618B (en) Beating machine
CN112245875A (en) Anti-strain straight arm chest clamping device with semi-automatic counterweight adjustment function
US4832334A (en) Apparatus for use with barbells
CN110732114B (en) Lifting iron weight-losing exercise auxiliary device
CN112245874A (en) Stretching exercise device capable of automatically counting and automatically increasing counter weight
CN110948369A (en) Cylindrical pressing metal surface polishing equipment
CN111467736A (en) Barbell lifting auxiliary device convenient to adjust weight
CN110917594B (en) Auxiliary device and method for training rotation of cheering gym
CN110115825B (en) Energy-saving type exercise and fitness equipment
CN111377302A (en) Automatic winding and bundling device for handheld data line
CN212466961U (en) Deltoid training device
US4978119A (en) Exercising device for simulating athletic movements
CN213387165U8 (en) Automatic wire arranging device for cable production
CN216350495U (en) Steel wire rope damage detection device based on vibration effect
CN213299325U (en) Liquid crystal television convenient to adjust
CN210021029U (en) Electric-control resistance type upper limb body-building device
CN115006784A (en) High-tension dorsal muscle trainer based on physical education
CN111870874A (en) Barbell rack capable of automatically adjusting number of barbell pieces
CN109985354B (en) Mountain climbing machine for body building
CN111392104A (en) Single flower is with automatic packing bundle device
CN113133914A (en) Massage chair capable of changing force according to weight
CN213789778U (en) Strength training equipment
CN111923801A (en) Self-opening and self-closing automobile central armrest with built-in table plate capable of automatically adjusting height
CN220736091U (en) Pull-up training frame for physical exercise

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20210618

WW01 Invention patent application withdrawn after publication