CN109173144B

CN109173144B - Sharing barbell

Info

Publication number: CN109173144B
Application number: CN201811080147.0A
Authority: CN
Inventors: 林景茂; 陈桂音
Original assignee: Shenzhen Xinbantu Technology Co ltd
Current assignee: Hainan tuopuyousi Network Technology Co.,Ltd.
Priority date: 2017-11-07
Filing date: 2018-09-17
Publication date: 2021-07-30
Anticipated expiration: 2038-09-17
Also published as: CN107715375A; CN109173144A

Abstract

The invention belongs to the technical field of barbells, and particularly relates to a shared barbell, which comprises a balance weight driving disc, a barbell balance weight disc, a first barbell rod, a second barbell rod and a trigger mechanism, wherein when people use the barbell designed by the invention; when a user wants to use the barbell designed by the invention without scanning codes, the two-dimensional code sensor can enable the trigger handle to be in a closed state; under the condition of reusing the gravity of the barbell, the first barbell rods on two sides are separated from the corresponding barbell balance weight discs; the user cannot exercise normally; when a user uses the barbell designed by the invention after scanning codes; at the moment, the two-dimension code sensor enables the trigger handle to be in an open state; the user can firstly lift the barbell upwards with both hands; lifting the barbell and then reversing the barbell; so that the whole barbell is positioned at the upper sides of the two hands; and finally the barbell is lifted upwards.

Description

Sharing barbell

Technical Field

The invention belongs to the technical field of barbells, and particularly relates to a sharing barbell.

Background

The barbell installed in the existing gymnasium can be used conveniently by a user; thus, great inconvenience is brought to the management of the gymnasium; and people want to use the barbell normally; the user can go to a gymnasium management department for registration; this brings much inconvenience to the user; therefore, it is necessary to design a barbell that can be used by scanning with two microcodes and prevent people from using the barbell without scanning codes.

The present invention is directed to a shared barbell that solves the above problems.

Disclosure of Invention

In order to solve the above defects in the prior art, the invention discloses a sharing barbell, which is realized by adopting the following technical scheme.

A shared barbell, comprising: the barbell weight balancing device comprises a weight balancing driving disc, a barbell weight balancing disc, a first barbell rod, a second barbell rod, a trigger mechanism, a volute spiral spring, a second one-way clutch, a first barbell rotating shaft and an annular inclined plane, wherein two ends of the second barbell rod are respectively provided with one trigger mechanism; the structures of the two triggering mechanisms which are arranged on the sides far away from the second barbell bar are completely the same; for any one of them, one end of the first barbell bar is connected with the trigger mechanism; the outer circle surface of the other end of the first barbell bar is provided with an annular inclined surface; the outer circle surface of one end of the first barbell bar with the annular inclined surface is provided with a thread; the inner circle surface of the barbell weight plate is provided with threads; the barbell weight plate is arranged at one end of the first barbell rod with threads, and the threads on the barbell weight plate are matched with the threads on the first barbell rod; the balance weight driving disc is arranged on the end face of one side of the barbell balance weight disc, which is far away from the trigger mechanism; one end of a first barbell rotating shaft is arranged on the balance weight driving disc, and the other end of the first barbell rotating shaft is connected with the trigger mechanism through a second one-way clutch; a volute spiral spring is arranged between the first barbell rotating shaft and the inner circular surface of the first barbell rod; the inner end of the scroll spring is arranged on the first barbell rotating shaft, and the outer end of the scroll spring is arranged on the inner circular surface of the first barbell rod.

The trigger mechanism comprises a first one-way clutch, a handle mounting cylinder, a first gear, a second barbell rotating shaft, a trigger handle, a shaft hole, a handle mounting groove, a cylindrical cavity, a guide groove, a compression spring, a guide block, a rack, a second gear, a third one-way clutch, an inner toothed ring and a second rotating shaft, wherein the cylindrical cavity is arranged on the inner side of the handle mounting cylinder; two through handle mounting grooves are symmetrically formed in the circular surface of the cylindrical cavity; the side surface of the cylindrical cavity is provided with a shaft hole; two guide grooves are symmetrically formed in two side faces of each of the two handle mounting grooves; one end of the handle mounting cylinder is connected with the first barbell bar through a first one-way clutch; the other end of the handle mounting cylinder is connected with the second barbell bar through a first one-way clutch; two guide blocks are symmetrically arranged on two side surfaces of the trigger handle; the two trigger handles are respectively arranged in the two handle mounting grooves through the matching of the two guide blocks arranged on the trigger handles and the guide grooves on the two handle mounting grooves; a compression spring is respectively arranged between each guide block in the four guide blocks and the corresponding guide groove; the second barbell rotating shaft is arranged on the shaft hole, and one end of the second barbell rotating shaft is connected with the first barbell rotating shaft through a second one-way clutch; the other end of the second barbell rotating shaft is provided with a first gear, and the first gear is positioned in the cylindrical cavity; one ends of the two second rotating shafts are symmetrically arranged on the side surface of the mounting cavity; the other ends of the two second rotating shafts are respectively provided with a second gear, and the two second gears are respectively meshed with the first gear; one end of the inner gear ring is arranged on the end face of the side, where the second rotating shaft is not arranged, of the installation cavity; the inner gear ring is meshed with the two second gears; a third one-way clutch is arranged on the outer circular surface of the inner gear ring; the two racks are respectively arranged on the two trigger handles and are respectively meshed with the outer ring of the third one-way clutch; the two racks are respectively positioned on two sides of the third one-way clutch.

The first barbell bar is connected with the handle mounting cylinder through a first clutch; the handle mounting cylinder can rotate relative to the first barbell bar; but the handle mounting cylinder does not disengage from the constraint of the first barbell bar; the second barbell bar is connected with the handle mounting cylinder through a first clutch; the handle mounting cylinder can rotate relative to the second barbell bar; but the handle mounting cylinder does not become disengaged from the constraint of the second barbell bar.

As a further improvement of the present technology, the number of thread turns engaged by the first barbell bar and the barbell weight plate in the initial state is two; the annular inclined plane on the first barbell rod is matched with the barbell balance weight disk.

As a further improvement of the present technology, the second one-way clutch includes a second clutch rotor and a second clutch housing, wherein the second clutch rotor is connected to the corresponding first barbell rotating shaft; the second clutch shell is connected with the corresponding second barbell rotating shaft.

As a further improvement of the present technology, the first one-way clutch includes a first clutch rotor, a first clutch housing, wherein the first clutch rotor is connected to a corresponding first barbell bar between the first barbell bar and the handle mounting cylinder; the first clutch housing is connected with a corresponding handle mounting cylinder.

As a further improvement of the present technique, the first clutch rotor is connected to the corresponding second barbell bar between the second barbell bar and the handle mounting cylinder; the first clutch housing is connected with a corresponding handle mounting cylinder.

As a further improvement of the technology, when a user wants to use the barbell designed by the invention without scanning codes, the two-dimensional code sensor can enable the trigger handle to be in a closed state; when a user uses the barbell designed by the invention after scanning codes; at the moment, the two-dimension code sensor enables the trigger handle to be in an open state; the user can firstly lift the barbell upwards with both hands; lifting the barbell and then reversing the barbell; so that the whole barbell is positioned at the upper sides of the two hands; and finally the barbell is lifted upwards.

As a further improvement of the technology, the first barbell rotating shaft and the second barbell rotating shaft are flexible transmission shafts.

As a further improvement of the technology, the trigger handle is provided with a two-dimensional code sensor.

Compared with the traditional barbell technology, the barbell designed by the invention can be used by scanning two microcodes; meanwhile, the trigger handle can be controlled through the two-dimensional code induction ring; so that users who do not scan the code can not use the code; thereby making the operation process more convenient for users and managers.

In the invention, an annular inclined surface is arranged on the outer circular surface of one end of a first barbell bar; the outer circle surface of one end of the first barbell bar with the annular inclined surface is provided with a thread; the inner circle surface of the barbell weight plate is provided with threads; the barbell weight plate is arranged at one end of the first barbell rod with threads, and the threads on the barbell weight plate are matched with the threads on the first barbell rod; the balance weight driving disc is arranged on the barbell balance weight disc; one end of a first barbell rotating shaft is arranged on the balance weight driving disc, and the other end of the first barbell rotating shaft is connected with the trigger mechanism through a second one-way clutch; a volute spiral spring is arranged between the first barbell rotating shaft and the inner circular surface of the first barbell rod; the inner end of the volute spiral spring is arranged on the first barbell rotating shaft, and the outer end of the volute spiral spring is arranged on the inner circular surface of the first barbell rod; one end of the handle mounting cylinder is connected with the first barbell bar through a first one-way clutch; the other end of the handle mounting cylinder is connected with the second barbell bar through a first one-way clutch; two guide blocks are symmetrically arranged on two side surfaces of the trigger handle; the two trigger handles are respectively arranged in the two handle mounting grooves through the matching of the two guide blocks arranged on the trigger handles and the guide grooves on the two handle mounting grooves; a compression spring is respectively arranged between each guide block in the four guide blocks and the corresponding guide groove; the second barbell rotating shaft is arranged on the shaft hole, and one end of the second barbell rotating shaft is connected with the first barbell rotating shaft through a second one-way clutch; the other end of the second barbell rotating shaft is provided with a first gear, and the first gear is positioned in the cylindrical cavity; one ends of the two second rotating shafts are symmetrically arranged on the side surface of the mounting cavity; the other ends of the two second rotating shafts are respectively provided with a second gear, and the two second gears are respectively meshed with the first gear; one end of the inner gear ring is arranged on the end face of the side, where the second rotating shaft is not arranged, of the installation cavity; the inner gear ring is meshed with the two second gears; a third one-way clutch is arranged on the outer circular surface of the inner gear ring; the two racks are respectively arranged on the two trigger handles and are respectively meshed with the outer ring of the third one-way clutch; the two racks are respectively positioned on two sides of the third one-way clutch; in the invention, a second clutch rotor is connected with a corresponding first barbell rotating shaft; the second clutch shell is connected with the corresponding second barbell rotating shaft. In the invention, for the position between the first barbell bar and the handle installation cylinder, the first clutch rotor is connected with the corresponding first barbell bar; the first clutch housing is connected with a corresponding handle mounting cylinder. For the second barbell bar and the handle installation column, the first clutch rotor is connected with the corresponding second barbell bar; the first clutch housing is connected with a corresponding handle mounting cylinder. The first barbell bar is connected with the handle mounting cylinder through a first clutch; the handle mounting cylinder can rotate relative to the first barbell bar; but the handle mounting cylinder does not disengage from the constraint of the first barbell bar; the second barbell bar is connected with the handle mounting cylinder through a first clutch; the handle mounting cylinder can rotate relative to the second barbell bar; but the handle mounting cylinder does not become disengaged from the constraint of the second barbell bar. The trigger handle is provided with a two-dimensional code sensor. When a user wants to use the barbell designed by the invention without scanning codes, the two-dimensional code sensor can enable the trigger handle to be in a closed state; when the user takes the barbell up from the barbell stand; in the invention, the number of the thread turns of the first barbell rod and the barbell weight plate which are meshed in the initial state is two; the annular inclined plane on the first barbell rod is matched with the barbell balance weight disc; therefore, under the condition of reusing the gravity of the barbell; the two first barbell bars on the two sides are easy to be separated from the constraint of the corresponding barbell balance weight discs; namely when the user takes the barbell up from the barbell stand; under the condition of reusing the gravity of the barbell; the two first barbell bars on the two sides can be separated from the constraint of the barbell balance weight disc; so that the first barbell bars on the two sides are separated from the corresponding barbell balance weight discs; the user cannot exercise normally; namely, the use of a user who does not perform code scanning is prevented by separating the first barbell bars on the two sides from the corresponding barbell weights; in the invention, the first barbell rotating shaft and the second barbell rotating shaft are soft transmission shafts; therefore, when the first barbell bars on the two sides are separated from the corresponding barbell weight plates, the first barbell bars on the two sides do not influence the first barbell rotating shaft and the second barbell rotating shaft. When the user perceives that the barbell cannot be used, the user can put the barbell back on the barbell support; at the moment, the first barbell bars at the two sides can be restored to the original positions under the elastic action of the first barbell rotating shaft and the second barbell rotating shaft; according to the invention, the first barbell rod is provided with an annular inclined surface, and the annular inclined surface on the first barbell rod is matched with the barbell balance weight disc; the function of which is to make it easier for the first barbell bar to disengage from the barbell weight plate and to recover. When a user uses the barbell designed by the invention after scanning codes; at the moment, the two-dimension code sensor enables the trigger handle to be in an open state; when the user lifts the barbell in the upward direction; the two trigger handles at the lower side can move towards the inner side of the handle mounting cylinder under the action of the gravity of the barbell; controlling the second one-way clutch in this state so that the second one-way clutch is in an open state; controlling the third one-way clutch such that the third one-way clutch is in an open state; controlling the first one-way clutch such that the first one-way clutch is in an open state; at the moment, the trigger handle positioned on the lower side moves towards the inner side of the handle installation cylinder to drive the corresponding rack to move towards the inner side of the handle installation cylinder; the rack moves, and the corresponding inner gear ring rotates through the corresponding third one-way clutch; the inner gear ring rotates to drive the two corresponding second gears to rotate; the two second gears rotate to drive the corresponding first gears to rotate; the first gear rotates to drive the corresponding second barbell rotating shaft to rotate; the second barbell rotating shaft rotates and drives the first barbell rotating shaft to rotate through the second one-way clutch; the first barbell rotating shaft rotates to drive the corresponding counter weight driving disc to rotate; the balance weight driving disc drives the corresponding barbell balance weight disc to rotate; the barbell weight plate rotates to drive the corresponding first barbell rod to rotate; but the handle mounting cylinder is in a static state at the moment; the handle mounting cylinder causes the corresponding first barbell bar to be in a stationary state through the first one-way clutch; and the thread on the barbell weight plate is matched with the thread on the corresponding first barbell rod; the barbell weight plate can move to one side close to the first barbell rod by rotating; the contact between the barbell weight plate and the corresponding first barbell rod is more stable; when a user takes up the barbell, the barbell can be lifted upwards; the user will first turn the barbell in the upward lifting process; controlling the second one-way clutch to be in a closed state; controlling the third one-way clutch such that the third one-way clutch is in an off state; controlling the first one-way clutch such that the first one-way clutch is in an open state; when the user is reversing the barbell; the user firstly rotates the trigger handle reversely; when the trigger handle rotates reversely, the corresponding handle mounting cylinder is driven to rotate; the handle mounting cylinder rotates to drive the corresponding first barbell rod to rotate through the first one-way clutch; meanwhile, when the handle mounting cylinder rotates, the two second gears are driven to rotate around the axis of the first gear; the two second gears rotate around the axis of the first gear to drive the first gear to rotate; the first gear rotates to drive the corresponding second barbell rotating shaft to rotate; since the second one-way clutch is in the off state at this time; therefore, the second barbell rotating shaft can not drive the first barbell rotating shaft to rotate; namely, the barbell weight plate can not be driven to rotate; therefore, the first barbell bar rotates reversely at the moment, so that the barbell weight plate moves to one side close to the first barbell bar; the contact between the barbell weight plate and the corresponding first barbell rod is more stable; when the user turns the barbell upside down, the barbell can be lifted upwards; controlling the first one-way clutch to enable the first one-way clutch to be in a closed state; at the moment, the two trigger handles which are just positioned at the upper side are positioned at the lower side; so under the action of the gravity of the barbell; at the moment, the two trigger handles positioned at the lower side can move towards the inner side of the handle mounting cylinder; at the moment, the two trigger handles positioned on the upper side move to one end far away from the inner side of the handle mounting cylinder under the action of the compression spring; the inner gear ring is connected with the rack through a third one-way clutch; therefore, the two trigger handles positioned at the upper side do not influence the corresponding internal tooth transmission when moving; when the two trigger handles are recovered; at this time, the second one-way clutch is controlled so that the second one-way clutch is in an open state; controlling the third one-way clutch such that the third one-way clutch is in an open state; controlling the first one-way clutch such that the first one-way clutch is in an open state; under the action of the gravity of the barbell; at the moment, the two trigger handles positioned at the lower side can move towards the inner side of the handle mounting cylinder; the two trigger handles move towards the inner side of the handle installation cylinder to drive the corresponding racks to move towards the inner side of the handle installation cylinder; the rack moves, and the corresponding inner gear ring rotates through the corresponding third one-way clutch; the inner gear ring rotates to drive the two corresponding second gears to rotate; the two second gears rotate to drive the corresponding first gears to rotate; the first gear rotates to drive the corresponding second barbell rotating shaft to rotate; the second barbell rotating shaft rotates and drives the first barbell rotating shaft to rotate through the second one-way clutch; the first barbell rotating shaft rotates to drive the corresponding counter weight driving disc to rotate; the balance weight driving disc drives the corresponding barbell balance weight disc to rotate; the barbell weight plate rotates to drive the corresponding first barbell rod to rotate; but the handle mounting cylinder is in a static state at the moment; the handle mounting cylinder causes the corresponding first barbell bar to be in a stationary state through the first one-way clutch; and the thread on the barbell weight plate is matched with the thread on the corresponding first barbell rod; the barbell weight plate can move to one side close to the first barbell rod by rotating; the contact between the barbell weight plate and the corresponding first barbell rod is more stable. The barbell weight plate and the corresponding first barbell rod cannot be separated; the user can exercise with care. The spiral spring designed by the invention has the function of enabling the first barbell bar and the barbell weight plate to be restored to the original positions after the use of a user is finished.

When people use the barbell designed by the invention; when a user wants to use the barbell designed by the invention without scanning codes, the two-dimensional code sensor can enable the trigger handle to be in a closed state; when the user takes the barbell up from the barbell stand; in the invention, the number of the thread turns of the first barbell rod and the barbell weight plate which are meshed in the initial state is two; the annular inclined plane on the first barbell rod is matched with the barbell balance weight disc; therefore, under the condition of reusing the gravity of the barbell; the two first barbell bars on the two sides are easy to be separated from the constraint of the corresponding barbell balance weight discs; namely when the user takes the barbell up from the barbell stand; under the condition of reusing the gravity of the barbell; the two first barbell bars on the two sides can be separated from the constraint of the barbell balance weight disc; so that the first barbell bars on the two sides are separated from the corresponding barbell balance weight discs; the user cannot exercise normally; namely, the use of a user who does not perform code scanning is prevented by separating the first barbell bars on the two sides from the corresponding barbell weights; in the invention, the first barbell rotating shaft and the second barbell rotating shaft are soft transmission shafts; therefore, when the first barbell bars on the two sides are separated from the corresponding barbell weight plates, the first barbell bars on the two sides do not influence the first barbell rotating shaft and the second barbell rotating shaft. When the user perceives that the barbell cannot be used, the user can put the barbell back on the barbell support; at the moment, the first barbell bars at the two sides can be restored to the original positions under the elastic action of the first barbell rotating shaft and the second barbell rotating shaft; according to the invention, the first barbell rod is provided with an annular inclined surface, and the annular inclined surface on the first barbell rod is matched with the barbell balance weight disc; the function of which is to make it easier for the first barbell bar to disengage from the barbell weight plate and to recover. When a user uses the barbell designed by the invention after scanning codes; at the moment, the two-dimension code sensor enables the trigger handle to be in an open state; when the user lifts the barbell in the upward direction; the two trigger handles at the lower side can move towards the inner side of the handle mounting cylinder under the action of the gravity of the barbell; controlling the second one-way clutch in this state so that the second one-way clutch is in an open state; controlling the third one-way clutch such that the third one-way clutch is in an open state; controlling the first one-way clutch such that the first one-way clutch is in an open state; at the moment, the trigger handle positioned on the lower side moves towards the inner side of the handle installation cylinder to drive the corresponding rack to move towards the inner side of the handle installation cylinder; the rack moves, and the corresponding inner gear ring rotates through the corresponding third one-way clutch; the inner gear ring rotates to drive the two corresponding second gears to rotate; the two second gears rotate to drive the corresponding first gears to rotate; the first gear rotates to drive the corresponding second barbell rotating shaft to rotate; the second barbell rotating shaft rotates and drives the first barbell rotating shaft to rotate through the second one-way clutch; the first barbell rotating shaft rotates to drive the corresponding counter weight driving disc to rotate; the balance weight driving disc drives the corresponding barbell balance weight disc to rotate; the barbell weight plate rotates to drive the corresponding first barbell rod to rotate; but the handle mounting cylinder is in a static state at the moment; the handle mounting cylinder causes the corresponding first barbell bar to be in a stationary state through the first one-way clutch; and the thread on the barbell weight plate is matched with the thread on the corresponding first barbell rod; the barbell weight plate can move to one side close to the first barbell rod by rotating; the contact between the barbell weight plate and the corresponding first barbell rod is more stable; when a user takes up the barbell, the barbell can be lifted upwards; the user will first turn the barbell in the upward lifting process; controlling the second one-way clutch to be in a closed state; controlling the third one-way clutch such that the third one-way clutch is in an off state; controlling the first one-way clutch such that the first one-way clutch is in an open state; when the user is reversing the barbell; the user firstly rotates the trigger handle reversely; when the trigger handle rotates reversely, the corresponding handle mounting cylinder is driven to rotate; the handle mounting cylinder rotates to drive the corresponding first barbell rod to rotate through the first one-way clutch; meanwhile, when the handle mounting cylinder rotates, the two second gears are driven to rotate around the axis of the first gear; the two second gears rotate around the axis of the first gear to drive the first gear to rotate; the first gear rotates to drive the corresponding second barbell rotating shaft to rotate; since the second one-way clutch is in the off state at this time; therefore, the second barbell rotating shaft can not drive the first barbell rotating shaft to rotate; namely, the barbell weight plate can not be driven to rotate; therefore, the first barbell bar rotates reversely at the moment, so that the barbell weight plate moves to one side close to the first barbell bar; the contact between the barbell weight plate and the corresponding first barbell rod is more stable; when the user turns the barbell upside down, the barbell can be lifted upwards; controlling the first one-way clutch to enable the first one-way clutch to be in a closed state; at the moment, the two trigger handles which are just positioned at the upper side are positioned at the lower side; so under the action of the gravity of the barbell; at the moment, the two trigger handles positioned at the lower side can move towards the inner side of the handle mounting cylinder; at the moment, the two trigger handles positioned on the upper side move to one end far away from the inner side of the handle mounting cylinder under the action of the compression spring; the inner gear ring is connected with the rack through a third one-way clutch; therefore, the two trigger handles positioned at the upper side do not influence the corresponding internal tooth transmission when moving; when the two trigger handles are recovered; at this time, the second one-way clutch is controlled so that the second one-way clutch is in an open state; controlling the third one-way clutch such that the third one-way clutch is in an open state; controlling the first one-way clutch such that the first one-way clutch is in an open state; under the action of the gravity of the barbell; at the moment, the two trigger handles positioned at the lower side can move towards the inner side of the handle mounting cylinder; the two trigger handles move towards the inner side of the handle installation cylinder to drive the corresponding racks to move towards the inner side of the handle installation cylinder; the rack moves, and the corresponding inner gear ring rotates through the corresponding third one-way clutch; the inner gear ring rotates to drive the two corresponding second gears to rotate; the two second gears rotate to drive the corresponding first gears to rotate; the first gear rotates to drive the corresponding second barbell rotating shaft to rotate; the second barbell rotating shaft rotates and drives the first barbell rotating shaft to rotate through the second one-way clutch; the first barbell rotating shaft rotates to drive the corresponding counter weight driving disc to rotate; the balance weight driving disc drives the corresponding barbell balance weight disc to rotate; the barbell weight plate rotates to drive the corresponding first barbell rod to rotate; but the handle mounting cylinder is in a static state at the moment; the handle mounting cylinder causes the corresponding first barbell bar to be in a stationary state through the first one-way clutch; and the thread on the barbell weight plate is matched with the thread on the corresponding first barbell rod; the barbell weight plate can move to one side close to the first barbell rod by rotating; the contact between the barbell weight plate and the corresponding first barbell rod is more stable. The barbell weight plate and the corresponding first barbell rod cannot be separated; the user can exercise with care.

Drawings

Fig. 1 is an external view of an entire part.

Fig. 2 is a schematic view of the overall component distribution.

Fig. 3 is a plan view of the internal structure of the integral unit.

Fig. 4 is a schematic view of the internal structure of the integral unit.

Fig. 5 is a schematic view of the trigger mechanism installation.

Fig. 6 is a schematic view of a handle mounting cylinder.

Fig. 7 is a schematic view of the mounting of the handle mounting cylinder.

Fig. 8 is a trigger handle installation schematic.

FIG. 9 is a schematic view of a first barbell bar construction.

Fig. 10 is a schematic view of the trigger handle construction.

Fig. 11 is a rack mounting schematic.

Fig. 12 is a schematic view of the internal gear ring structure.

Fig. 13 is a schematic view of an internally toothed ring installation.

FIG. 14 is a schematic view of a second one-way clutch configuration.

FIG. 15 is a schematic view of a scroll spring installation.

Fig. 16 is a schematic view of the operating principle of the trigger handle.

Fig. 17 is a schematic diagram of the operation of the barbell weight plate.

Number designation in the figures: 1. a counterweight drive disk; 2. a barbell weight plate; 3. a first barbell bar; 4. a second barbell bar; 5. a trigger mechanism; 6. a volute spiral spring; 7. a cylindrical cavity; 8. a first one-way clutch; 9. a handle mounting cylinder; 10. a first gear; 11. a first barbell spindle; 12. a second one-way clutch; 13. a second barbell rotating shaft; 14. a trigger handle; 16. a shaft hole; 17. a handle mounting groove; 18. a guide groove; 19. a first clutch rotor; 20. a first clutch housing; 21. a compression spring; 22. a guide block; 23. an annular bevel; 24. a rack; 25. a second gear; 26. a third one-way clutch; 27. an inner gear ring; 28. a second clutch housing; 29. a second rotating shaft; 30. a second clutch rotor.

Detailed Description

As shown in fig. 1 and 2, the barbell driving device comprises a weight driving disc 1, a barbell weight disc 2, a first barbell rod 3, a second barbell rod 4, a trigger mechanism 5, a volute spiral spring 6, a second one-way clutch 12, a first barbell rotating shaft 11 and an annular inclined surface 23, wherein as shown in fig. 3, two trigger mechanisms 5 are respectively installed at two ends of the second barbell rod 4; the two trigger mechanisms 5 are completely the same in structure installed on the sides far away from the second barbell bar 4; for any one, one end of the first barbell bar 3 is connected to the trigger mechanism 5; as shown in FIG. 9, the first barbell bar 3 has an annular inclined surface 23 on the outer circumferential surface at the other end thereof; the first barbell bar 3 has a thread on the outer circumferential surface of one end having the annular inclined surface 23; the inner circle surface of the barbell weight plate 2 is provided with threads; as shown in fig. 4, the barbell weight plate 2 is mounted on the end of the first barbell bar 3 with threads, and the threads on the barbell weight plate 2 are engaged with the threads on the first barbell bar 3; the balance weight driving disc 1 is arranged on the end face of one side of the barbell balance weight disc 2 far away from the trigger mechanism 5; one end of a first barbell rotating shaft 11 is arranged on the counterweight driving disc 1, and the other end of the first barbell rotating shaft 11 is connected with the trigger mechanism 5 through a second one-way clutch 12; as shown in FIG. 15, a volute spiral spring 6 is installed between the first barbell rotating shaft 11 and the inner circumferential surface of the first barbell bar 3; the inner end of scroll spring 6 is mounted on first barbell shaft 11, and the outer end of scroll spring 6 is mounted on the inner circumferential surface of first barbell bar 3.

As shown in fig. 5, the above trigger mechanism 5 includes a first one-way clutch 8, a handle mounting cylinder 9, a first gear 10, a second barbell rotating shaft 13, a trigger handle 14, a shaft hole 16, a handle mounting groove 17, a cylinder chamber 7, a guide groove 18, a compression spring 21, a guide block 22, a rack 24, a second gear 25, a third one-way clutch 26, an inner gear ring 27, and a second rotating shaft 29, wherein as shown in fig. 6, the inside of the handle mounting cylinder 9 has the cylinder chamber 7; two through handle mounting grooves 17 are symmetrically formed in the circular surface of the cylindrical cavity 7; the side surface of the cylindrical cavity 7 is provided with a shaft hole 16; two guide grooves 18 are symmetrically formed on two side surfaces of each handle mounting groove 17 in the two handle mounting grooves 17; as shown in FIG. 7, one end of the handle mounting cylinder 9 is connected to the first barbell bar 3 via a first one-way clutch 8; the other end of the handle mounting cylinder 9 is connected to the second barbell bar 4 through a first one-way clutch 8; as shown in fig. 10, two guide blocks 22 are symmetrically installed on both side surfaces of the trigger handle 14; as shown in fig. 8, the two trigger handles 14 are respectively installed in the two handle installation grooves 17 through the matching of the two guide blocks 22 installed thereon and the guide grooves 18 on the two handle installation grooves 17; a compression spring 21 is respectively arranged between each guide block 22 of the four guide blocks 22 and the corresponding guide groove 18; as shown in fig. 14, second barbell shaft 13 is mounted on shaft hole 16, and one end of second barbell shaft 13 is connected to first barbell shaft 11 through second one-way clutch 12; as shown in fig. 13, the other end of the second barbell rotating shaft 13 is provided with the first gear 10, and the first gear 10 is located in the cylindrical cavity 7; one ends of the two second rotating shafts 29 are symmetrically arranged on the side surface of the mounting cavity; the other ends of the two second rotating shafts 29 are respectively provided with a second gear 25, and the two second gears 25 are respectively meshed with the first gear 10; as shown in fig. 13, one end of the inner ring gear 27 is mounted on the end surface of the mounting cavity on the side where the second rotating shaft 29 is not mounted; as shown in fig. 11, the internal gear ring 27 meshes with the two second gears 25; a third one-way clutch 26 is mounted on the outer circular surface of the inner gear ring 27; as shown in fig. 12, two racks 24 are respectively mounted on the two trigger handles 14, and the two racks 24 are respectively engaged with the outer ring of the third one-way clutch 26; two racks 24 are located on either side of a third one-way clutch 26.

The first barbell bar 3 is connected with the handle mounting cylinder 9 through a first clutch; the handle mounting cylinder 9 can rotate relative to the first barbell bar 3; but the handle mounting cylinder 9 does not come out of the constraint of the first barbell bar 3; the second barbell bar 4 is connected with the handle mounting cylinder 9 through a first clutch; the handle mounting cylinder 9 can rotate relative to the second barbell bar 4; but the handle mounting cylinder 9 does not come out of the constraint of the second barbell bar 4.

The number of the thread turns of the first barbell bar 3 and the barbell weight plate 2 which are engaged in the initial state is two; the annular inclined surface 23 on the first barbell bar 3 cooperates with the barbell weight plate 2.

The second one-way clutch 12 includes a second clutch rotor 30 and a second clutch housing 28, wherein the second clutch rotor 30 is connected to the corresponding first barbell shaft 11; the second clutch housing 28 is connected to the corresponding second barbell shaft 13.

The first one-way clutch 8 includes a first clutch rotor 19, a first clutch housing 20, wherein the first clutch rotor 19 is connected to the corresponding first barbell bar 3 between the first barbell bar 3 and the handle mounting cylinder 9; the first clutch housing 20 is connected to the corresponding handle mounting cylinder 9.

The first clutch rotor 19 is connected to the corresponding second barbell bar 4 between the second barbell bar 4 and the handle mounting cylinder 9; the first clutch housing 20 is connected to the corresponding handle mounting cylinder 9.

When a user wants to use the barbell designed by the invention without scanning codes, the two-dimensional code sensor can enable the trigger handle 14 to be in a closed state; when a user uses the barbell designed by the invention after scanning codes; at this time, the two-dimensional code sensor enables the trigger handle 14 to be in an open state; the user can firstly lift the barbell upwards with both hands; lifting the barbell and then reversing the barbell; so that the whole barbell is positioned at the upper sides of the two hands; and finally the barbell is lifted upwards.

The first barbell bar rotating shaft 11 and the second barbell rotating shaft 13 are flexible transmission shafts.

The trigger handle 14 is provided with a two-dimensional code sensor.

In summary, the following steps:

the barbell designed by the invention can be used by scanning two microcodes; meanwhile, the trigger handle 14 can be controlled through the two-dimensional code induction ring; so that users who do not scan the code can not use the code; thereby making the operation process more convenient for users and managers.

In the present invention, the outer circular surface of one end of the first barbell bar 3 is provided with an annular inclined surface 23; the first barbell bar 3 has a thread on the outer circumferential surface of one end having the annular inclined surface 23; the inner circle surface of the barbell weight plate 2 is provided with threads; the barbell weight plate 2 is arranged at one end of the first barbell rod 3 with threads, and the threads on the barbell weight plate 2 are matched with the threads on the first barbell rod 3; the balance weight driving disc 1 is arranged on the barbell balance weight disc 2; one end of a first barbell rotating shaft 11 is arranged on the counterweight driving disc 1, and the other end of the first barbell rotating shaft 11 is connected with the trigger mechanism 5 through a second one-way clutch 12; a volute spiral spring 6 is arranged between the first barbell rotating shaft 11 and the inner circular surface of the first barbell rod 3; the inner end of the scroll spring 6 is arranged on the first barbell rotating shaft 11, and the outer end of the scroll spring 6 is arranged on the inner circular surface of the first barbell bar 3; one end of the handle mounting cylinder 9 is connected to the first barbell bar 3 through a first one-way clutch 8; the other end of the handle mounting cylinder 9 is connected to the second barbell bar 4 through a first one-way clutch 8; two guide blocks 22 are symmetrically arranged on two side surfaces of the trigger handle 14; the two trigger handles 14 are respectively arranged in the two handle mounting grooves 17 through the matching of the two guide blocks 22 arranged on the trigger handles and the guide grooves 18 on the two handle mounting grooves 17; a compression spring 21 is respectively arranged between each guide block 22 of the four guide blocks 22 and the corresponding guide groove 18; a second barbell rotating shaft 13 is installed on the shaft hole 16, and one end of the second barbell rotating shaft 13 is connected with the first barbell rotating shaft 11 through a second one-way clutch 12; the other end of the second barbell rotating shaft 13 is provided with a first gear 10, and the first gear 10 is positioned in the cylindrical cavity 7; one ends of the two second rotating shafts 29 are symmetrically arranged on the side surface of the mounting cavity; the other ends of the two second rotating shafts 29 are respectively provided with a second gear 25, and the two second gears 25 are respectively meshed with the first gear 10; one end of the inner gear ring 27 is arranged on the end face of the side of the mounting cavity, which is not provided with the second rotating shaft 29; the inner ring gear 27 meshes with the two second gears 25; a third one-way clutch 26 is mounted on the outer circular surface of the inner gear ring 27; two racks 24 are respectively installed on the two trigger handles 14, and the two racks 24 are respectively meshed with the outer ring of the third one-way clutch 26; the two racks 24 are respectively positioned on both sides of the third one-way clutch 26; in the invention, the second clutch rotor 30 is connected with the corresponding first barbell rotating shaft 11; the second clutch housing 28 is connected to the corresponding second barbell shaft 13. In the present invention, for the first barbell bar 3 and the handle mounting cylinder 9, the first clutch rotor 19 is connected to the corresponding first barbell bar 3; the first clutch housing 20 is connected to the corresponding handle mounting cylinder 9. For the second barbell bar 4 to be located between the handle mounting cylinders 9, the first clutch rotor 19 is connected to the corresponding second barbell bar 4; the first clutch housing 20 is connected to the corresponding handle mounting cylinder 9. The first barbell bar 3 is connected with the handle mounting cylinder 9 through a first clutch; the handle mounting cylinder 9 can rotate relative to the first barbell bar 3; but the handle mounting cylinder 9 does not come out of the constraint of the first barbell bar 3; the second barbell bar 4 is connected with the handle mounting cylinder 9 through a first clutch; the handle mounting cylinder 9 can rotate relative to the second barbell bar 4; but the handle mounting cylinder 9 does not come out of the constraint of the second barbell bar 4. The trigger handle 14 is provided with a two-dimensional code sensor. As shown in fig. 17a, when the user wants to use the barbell designed according to the present invention without scanning the code, the two-dimensional code sensor will turn off the trigger handle 14; when the user takes the barbell up from the barbell stand; in the invention, the number of the thread turns of the first barbell bar 3 and the barbell weight plate 2 which are meshed in the initial state is two; the annular inclined surface 23 on the first barbell bar 3 is matched with the barbell balance weight disc 2; therefore, under the condition of reusing the gravity of the barbell; the two first barbell bars 3 on the two sides are easy to be separated from the constraint of the corresponding barbell balance weight disc 2; namely when the user takes the barbell up from the barbell stand; as shown in fig. 17b, under the reuse of the weight of the barbell itself; the two first barbell bars 3 at the two sides can be separated from the constraint of the barbell balance weight disc 2; so that the first barbell bars 3 on the two sides are separated from the corresponding barbell balance weight discs 2; the user cannot exercise normally; namely, the use by the user who does not perform code scanning is prevented by disengaging the first barbell bars 3 on both sides from the corresponding barbell weights; in the invention, the first barbell bar rotating shaft 11 and the second barbell rotating shaft 13 are soft transmission shafts; the first barbell bars 3 on both sides do not affect the first barbell bar rotating shafts 11 and the second barbell rotating shafts 13 when the first barbell bars 3 on both sides are disengaged from the corresponding barbell weight plates 2. When the user perceives that the barbell cannot be used, the user can put the barbell back on the barbell support; at this time, the first barbell bars 3 at both sides will be restored to the original positions under the elastic action of the first barbell bar rotating shaft 11 and the second barbell rotating shaft 13; in the invention, the first barbell bar 3 is provided with an annular inclined surface 23, and the annular inclined surface 23 on the first barbell bar 3 is matched with the barbell balance weight plate 2; the function of which is to make it easier for the first barbell bar 3 to disengage from the barbell weight plate 2 and to recover. When a user uses the barbell designed by the invention after scanning codes; at this time, the two-dimensional code sensor enables the trigger handle 14 to be in an open state; when the user lifts the barbell in the upward direction; 19a, the two trigger handles 14 at the lower side move towards the inner sides of the handle mounting cylinders 9 under the action of the gravity of the barbell; controlling the second one-way clutch 12 in this state so that the second one-way clutch 12 is in an open state; controlling the third one-way clutch 26 such that the third one-way clutch 26 is in an open state; controlling the first one-way clutch 8 such that the first one-way clutch 8 is in an open state; at this time, the trigger handle 14 positioned at the lower side moves towards the inner side of the handle mounting cylinder 9 to drive the corresponding rack 24 to move towards the inner side of the handle mounting cylinder 9; as shown in fig. 16a, the movement of the rack 24 causes the corresponding inner ring gear 27 to rotate via the corresponding third one-way clutch 26; the inner gear ring 27 rotates to drive the two corresponding second gears 25 to rotate; the two second gears 25 rotate to drive the corresponding first gears 10 to rotate; as shown in fig. 17c, the first gear 10 rotates to drive the corresponding second barbell rotating shaft 13 to rotate; the second barbell rotating shaft 13 rotates and drives the first barbell rotating shaft 11 to rotate through the second one-way clutch 12; the first barbell rotating shaft 11 rotates to drive the corresponding counter weight driving disc 1 to rotate; the balance weight driving disc 1 drives the corresponding barbell balance weight disc 2 to rotate; the barbell weight plates 2 rotate to drive the corresponding first barbell rods 3 to rotate; but the handle mounting cylinder 9 is in a stationary state at this time; the handle mounting cylinder 9 causes the corresponding first barbell bar 3 to be in a stationary state by means of the first one-way clutch 8; and the thread on the barbell weight plate 2 is matched with the thread on the corresponding first barbell bar 3; so that the barbell weight plate 2 rotates to enable the barbell weight plate 2 to move to the side close to the first barbell bar 3; the contact between the barbell weight plate 2 and the corresponding first barbell rod 3 is more stable; as shown in fig. 16b, when the user lifts the barbell, it is lifted upwards; as shown in fig. 16c and 17d, the user first reverses the barbell during the upward lifting process; at this time, the control controls the second one-way clutch 12 so that the second one-way clutch 12 is in the off state; controlling the third one-way clutch 26 such that the third one-way clutch 26 is in an off state; controlling the first one-way clutch 8 such that the first one-way clutch 8 is in an open state; when the user is reversing the barbell; the user will first reverse the trigger handle 14; when the trigger handle 14 rotates reversely, the corresponding handle mounting cylinder 9 is driven to rotate; the handle mounting cylinder 9 rotates to drive the corresponding first barbell bar 3 to rotate through the first one-way clutch 8; meanwhile, when the handle mounting cylinder 9 rotates, the two second gears 25 are driven to rotate around the axis of the first gear 10; the two second gears 25 rotate around the axis of the first gear 10 to drive the first gear 10 to rotate; the first gear 10 rotates to drive the corresponding second barbell rotating shaft 13 to rotate; since the second one-way clutch 12 is in the off state at this time; therefore, the second barbell rotating shaft 13 does not drive the first barbell rotating shaft 11 to rotate; namely, the barbell weight plate 2 can not be driven to rotate; so that the first barbell bar 3 is rotated reversely at this time, so that the barbell weight plate 2 moves to the side close to the first barbell bar 3; the contact between the barbell weight plate 2 and the corresponding first barbell rod 3 is more stable; when the user turns the barbell upside down, the barbell can be lifted upwards; at this time, the first one-way clutch 8 is controlled so that the first one-way clutch 8 is in the off state; the two trigger handles 14 which are initially at the upper side are at the lower side; so under the action of the gravity of the barbell; the two trigger handles 14 at the lower side move toward the inside of the handle mounting cylinder 9; as shown in fig. 16d and 17e, the two trigger handles 14 at the upper side are moved to the end far from the inner side of the handle mounting cylinder 9 by the compression spring 21; in the invention, the inner gear ring 27 is connected with the rack 24 through the third one-way clutch 26; therefore, the two trigger handles 14 located at the upper side do not move to affect the corresponding internal gear transmission; as shown in fig. 16e, after both trigger handles 14 are restored; at this time, the second one-way clutch 12 is controlled such that the second one-way clutch 12 is in an open state; controlling the third one-way clutch 26 such that the third one-way clutch 26 is in an open state; controlling the first one-way clutch 8 such that the first one-way clutch 8 is in an open state; under the action of the gravity of the barbell; as shown in fig. 16f, 17f, the two trigger handles 14 located at the lower side are moved toward the inside of the handle mounting cylinder 9; the two trigger handles 14 move towards the inner side of the handle mounting cylinder 9 to drive the corresponding racks 24 to move towards the inner side of the handle mounting cylinder 9; the rack 24 moving causes the corresponding inner ring gear 27 to rotate via the corresponding third one-way clutch 26; the inner gear ring 27 rotates to drive the two corresponding second gears 25 to rotate; the two second gears 25 rotate to drive the corresponding first gears 10 to rotate; the first gear 10 rotates to drive the corresponding second barbell rotating shaft 13 to rotate; the second barbell rotating shaft 13 rotates and drives the first barbell rotating shaft 11 to rotate through the second one-way clutch 12; the first barbell rotating shaft 11 rotates to drive the corresponding counter weight driving disc 1 to rotate; the balance weight driving disc 1 drives the corresponding barbell balance weight disc 2 to rotate; the barbell weight plates 2 rotate to drive the corresponding first barbell rods 3 to rotate; but the handle mounting cylinder 9 is in a stationary state at this time; the handle mounting cylinder 9 causes the corresponding first barbell bar 3 to be in a stationary state by means of the first one-way clutch 8; and the thread on the barbell weight plate 2 is matched with the thread on the corresponding first barbell bar 3; so that the barbell weight plate 2 rotates to enable the barbell weight plate 2 to move to the side close to the first barbell bar 3; i.e. a more secure contact between the barbell weight plate 2 and the corresponding first barbell bar 3. The barbell weight plate 2 and the corresponding first barbell bar 3 cannot be separated; as shown in fig. 16g, the user can exercise with care. The spiral spring 6 designed by the present invention is used to restore the first barbell bar 3 and the barbell weight plate 2 to their original positions after the user finishes using the barbell.

The specific implementation mode is as follows: when people use the barbell designed by the invention; when a user wants to use the barbell designed by the invention without scanning codes, the two-dimensional code sensor can enable the trigger handle 14 to be in a closed state; when the user takes the barbell up from the barbell stand; in the invention, the number of the thread turns of the first barbell bar 3 and the barbell weight plate 2 which are meshed in the initial state is two; the annular inclined surface 23 on the first barbell bar 3 is matched with the barbell balance weight disc 2; therefore, under the condition of reusing the gravity of the barbell; the two first barbell bars 3 on the two sides are easy to be separated from the constraint of the corresponding barbell balance weight disc 2; namely when the user takes the barbell up from the barbell stand; under the condition of reusing the gravity of the barbell; the two first barbell bars 3 at the two sides can be separated from the constraint of the barbell balance weight disc 2; so that the first barbell bars 3 on the two sides are separated from the corresponding barbell balance weight discs 2; the user cannot exercise normally; namely, the use by the user who does not perform code scanning is prevented by disengaging the first barbell bars 3 on both sides from the corresponding barbell weights; in the invention, the first barbell bar rotating shaft 11 and the second barbell rotating shaft 13 are soft transmission shafts; the first barbell bars 3 on both sides do not affect the first barbell bar rotating shafts 11 and the second barbell rotating shafts 13 when the first barbell bars 3 on both sides are disengaged from the corresponding barbell weight plates 2. When the user perceives that the barbell cannot be used, the user can put the barbell back on the barbell support; at this time, the first barbell bars 3 at both sides will be restored to the original positions under the elastic action of the first barbell bar rotating shaft 11 and the second barbell rotating shaft 13; in the invention, the first barbell bar 3 is provided with an annular inclined surface 23, and the annular inclined surface 23 on the first barbell bar 3 is matched with the barbell balance weight plate 2; the function of which is to make it easier for the first barbell bar 3 to disengage from the barbell weight plate 2 and to recover. When a user uses the barbell designed by the invention after scanning codes; at this time, the two-dimensional code sensor enables the trigger handle 14 to be in an open state; when the user lifts the barbell in the upward direction; the two trigger handles 14 at the lower side move towards the inner sides of the handle mounting cylinders 9 under the action of the gravity of the barbell; controlling the second one-way clutch 12 in this state so that the second one-way clutch 12 is in an open state; controlling the third one-way clutch 26 such that the third one-way clutch 26 is in an open state; controlling the first one-way clutch 8 such that the first one-way clutch 8 is in an open state; at this time, the trigger handle 14 positioned at the lower side moves towards the inner side of the handle mounting cylinder 9 to drive the corresponding rack 24 to move towards the inner side of the handle mounting cylinder 9; the rack 24 moving causes the corresponding inner ring gear 27 to rotate via the corresponding third one-way clutch 26; the inner gear ring 27 rotates to drive the two corresponding second gears 25 to rotate; the two second gears 25 rotate to drive the corresponding first gears 10 to rotate; the first gear 10 rotates to drive the corresponding second barbell rotating shaft 13 to rotate; the second barbell rotating shaft 13 rotates and drives the first barbell rotating shaft 11 to rotate through the second one-way clutch 12; the first barbell rotating shaft 11 rotates to drive the corresponding counter weight driving disc 1 to rotate; the balance weight driving disc 1 drives the corresponding barbell balance weight disc 2 to rotate; the barbell weight plates 2 rotate to drive the corresponding first barbell rods 3 to rotate; but the handle mounting cylinder 9 is in a stationary state at this time; the handle mounting cylinder 9 causes the corresponding first barbell bar 3 to be in a stationary state by means of the first one-way clutch 8; and the thread on the barbell weight plate 2 is matched with the thread on the corresponding first barbell bar 3; so that the barbell weight plate 2 rotates to enable the barbell weight plate 2 to move to the side close to the first barbell bar 3; the contact between the barbell weight plate 2 and the corresponding first barbell rod 3 is more stable; when a user takes up the barbell, the barbell can be lifted upwards; the user will first turn the barbell in the upward lifting process; at this time, the control controls the second one-way clutch 12 so that the second one-way clutch 12 is in the off state; controlling the third one-way clutch 26 such that the third one-way clutch 26 is in an off state; controlling the first one-way clutch 8 such that the first one-way clutch 8 is in an open state; when the user is reversing the barbell; the user will first reverse the trigger handle 14; when the trigger handle 14 rotates reversely, the corresponding handle mounting cylinder 9 is driven to rotate; the handle mounting cylinder 9 rotates to drive the corresponding first barbell bar 3 to rotate through the first one-way clutch 8; meanwhile, when the handle mounting cylinder 9 rotates, the two second gears 25 are driven to rotate around the axis of the first gear 10; the two second gears 25 rotate around the axis of the first gear 10 to drive the first gear 10 to rotate; the first gear 10 rotates to drive the corresponding second barbell rotating shaft 13 to rotate; since the second one-way clutch 12 is in the off state at this time; therefore, the second barbell rotating shaft 13 does not drive the first barbell rotating shaft 11 to rotate; namely, the barbell weight plate 2 can not be driven to rotate; so that the first barbell bar 3 is rotated reversely at this time, so that the barbell weight plate 2 moves to the side close to the first barbell bar 3; the contact between the barbell weight plate 2 and the corresponding first barbell rod 3 is more stable; when the user turns the barbell upside down, the barbell can be lifted upwards; at this time, the first one-way clutch 8 is controlled so that the first one-way clutch 8 is in the off state; the two trigger handles 14 which are initially at the upper side are at the lower side; so under the action of the gravity of the barbell; the two trigger handles 14 at the lower side move toward the inside of the handle mounting cylinder 9; and the two trigger handles 14 at the upper side move to the end far away from the inner side of the handle mounting cylinder 9 under the action of the compression spring 21; in the invention, the inner gear ring 27 is connected with the rack 24 through the third one-way clutch 26; therefore, the two trigger handles 14 located at the upper side do not move to affect the corresponding internal gear transmission; when both trigger handles 14 are restored; at this time, the second one-way clutch 12 is controlled such that the second one-way clutch 12 is in an open state; controlling the third one-way clutch 26 such that the third one-way clutch 26 is in an open state; controlling the first one-way clutch 8 such that the first one-way clutch 8 is in an open state; under the action of the gravity of the barbell; the two trigger handles 14 at the lower side move toward the inside of the handle mounting cylinder 9; the two trigger handles 14 move towards the inner side of the handle mounting cylinder 9 to drive the corresponding racks 24 to move towards the inner side of the handle mounting cylinder 9; the rack 24 moving causes the corresponding inner ring gear 27 to rotate via the corresponding third one-way clutch 26; the inner gear ring 27 rotates to drive the two corresponding second gears 25 to rotate; the two second gears 25 rotate to drive the corresponding first gears 10 to rotate; the first gear 10 rotates to drive the corresponding second barbell rotating shaft 13 to rotate; the second barbell rotating shaft 13 rotates and drives the first barbell rotating shaft 11 to rotate through the second one-way clutch 12; the first barbell rotating shaft 11 rotates to drive the corresponding counter weight driving disc 1 to rotate; the balance weight driving disc 1 drives the corresponding barbell balance weight disc 2 to rotate; the barbell weight plates 2 rotate to drive the corresponding first barbell rods 3 to rotate; but the handle mounting cylinder 9 is in a stationary state at this time; the handle mounting cylinder 9 causes the corresponding first barbell bar 3 to be in a stationary state by means of the first one-way clutch 8; and the thread on the barbell weight plate 2 is matched with the thread on the corresponding first barbell bar 3; so that the barbell weight plate 2 rotates to enable the barbell weight plate 2 to move to the side close to the first barbell bar 3; i.e. a more secure contact between the barbell weight plate 2 and the corresponding first barbell bar 3. The barbell weight plate 2 and the corresponding first barbell bar 3 cannot be separated; the user can exercise with care.

Claims

1. A shared barbell, comprising: the barbell weight balancing device comprises a weight balancing driving disc, a barbell weight balancing disc, a first barbell rod, a second barbell rod, a trigger mechanism, a volute spiral spring, a second one-way clutch, a first barbell rotating shaft and an annular inclined plane, wherein two ends of the second barbell rod are respectively provided with one trigger mechanism; the structures of the two triggering mechanisms which are arranged on the sides far away from the second barbell bar are completely the same; for any one of them, one end of the first barbell bar is connected with the trigger mechanism; the outer circle surface of the other end of the first barbell bar is provided with an annular inclined surface; the outer circle surface of one end of the first barbell bar with the annular inclined surface is provided with a thread; the inner circle surface of the barbell weight plate is provided with threads; the barbell weight plate is arranged at one end of the first barbell rod with threads, and the threads on the barbell weight plate are matched with the threads on the first barbell rod; the balance weight driving disc is arranged on the end face of one side of the barbell balance weight disc, which is far away from the trigger mechanism; one end of a first barbell rotating shaft is arranged on the balance weight driving disc, and the other end of the first barbell rotating shaft is connected with the trigger mechanism through a second one-way clutch; a volute spiral spring is arranged between the first barbell rotating shaft and the inner circular surface of the first barbell rod; the inner end of the volute spiral spring is arranged on the first barbell rotating shaft, and the outer end of the volute spiral spring is arranged on the inner circular surface of the first barbell rod;

the trigger mechanism comprises a first one-way clutch, a handle mounting cylinder, a first gear, a second barbell rotating shaft, a trigger handle, a shaft hole, a handle mounting groove, a cylindrical cavity, a guide groove, a compression spring, a guide block, a rack, a second gear, a third one-way clutch, an inner toothed ring and a second rotating shaft, wherein the cylindrical cavity is arranged on the inner side of the handle mounting cylinder; two through handle mounting grooves are symmetrically formed in the circular surface of the cylindrical cavity; the side surface of the cylindrical cavity is provided with a shaft hole; two guide grooves are symmetrically formed in two side faces of each of the two handle mounting grooves; one end of the handle mounting cylinder is connected with the first barbell bar through a first one-way clutch; the other end of the handle mounting cylinder is connected with the second barbell bar through a first one-way clutch; two guide blocks are symmetrically arranged on two side surfaces of the trigger handle; the two trigger handles are respectively arranged in the two handle mounting grooves through the matching of the two guide blocks arranged on the trigger handles and the guide grooves on the two handle mounting grooves; a compression spring is respectively arranged between each guide block in the four guide blocks and the corresponding guide groove; the second barbell rotating shaft is arranged on the shaft hole, and one end of the second barbell rotating shaft is connected with the first barbell rotating shaft through a second one-way clutch; the other end of the second barbell rotating shaft is provided with a first gear, and the first gear is positioned in the cylindrical cavity; one ends of the two second rotating shafts are symmetrically arranged on the side surface of the mounting cavity; the other ends of the two second rotating shafts are respectively provided with a second gear, and the two second gears are respectively meshed with the first gear; one end of the inner gear ring is arranged on the end face of the side, where the second rotating shaft is not arranged, of the installation cavity; the inner gear ring is meshed with the two second gears; a third one-way clutch is arranged on the outer circular surface of the inner gear ring; the two racks are respectively arranged on the two trigger handles and are respectively meshed with the outer ring of the third one-way clutch; the two racks are respectively positioned on two sides of the third one-way clutch;

2. A shared barbell as claimed in claim 1, wherein: the number of the thread turns of the first barbell rod and the barbell weight plate which are meshed in the initial state is two; the annular inclined plane on the first barbell rod is matched with the barbell balance weight disk.

3. A shared barbell as claimed in claim 1, wherein: the second one-way clutch comprises a second clutch rotor and a second clutch shell, wherein the second clutch rotor is connected with the corresponding first barbell rotating shaft; the second clutch shell is connected with the corresponding second barbell rotating shaft.

4. A shared barbell as claimed in claim 1, wherein: the first one-way clutch includes a first clutch rotor, a first clutch housing, wherein the first clutch rotor is connected to a corresponding first barbell bar between the first barbell bar and the handle mounting cylinder; the first clutch housing is connected with a corresponding handle mounting cylinder.

5. A shared barbell as claimed in claim 1, wherein: for the second barbell bar and the handle mounting cylinder, the first clutch rotor is connected with the corresponding second barbell bar; the first clutch housing is connected with a corresponding handle mounting cylinder.

6. A shared barbell as claimed in claim 1, wherein: when a user wants to use the barbell without scanning the code, the two-dimensional code sensor enables the trigger handle to be in a closed state; when the user uses the barbell after scanning the code; at the moment, the two-dimension code sensor enables the trigger handle to be in an open state; the user can firstly lift the barbell upwards with both hands; lifting the barbell and then reversing the barbell; so that the whole barbell is positioned at the upper sides of the two hands; and finally the barbell is lifted upwards.

7. A shared barbell as claimed in claim 1, wherein: the first barbell rotating shaft and the second barbell rotating shaft are soft transmission shafts.

8. A shared barbell as claimed in claim 1, wherein: the trigger handle is provided with a two-dimensional code sensor.