CN111939517A - Use protection equipment of barbell - Google Patents
Use protection equipment of barbell Download PDFInfo
- Publication number
- CN111939517A CN111939517A CN202010879719.2A CN202010879719A CN111939517A CN 111939517 A CN111939517 A CN 111939517A CN 202010879719 A CN202010879719 A CN 202010879719A CN 111939517 A CN111939517 A CN 111939517A
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- CN
- China
- Prior art keywords
- barbell
- fixedly connected
- centrifugal
- block
- outer side
- 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.)
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Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/06—User-manipulated weights
- A63B21/072—Dumb-bells, bar-bells or the like, e.g. weight discs having an integral peripheral handle
- A63B21/075—Dumb-bells, bar-bells or the like, e.g. weight discs having an integral peripheral handle with variable weights, e.g. weight systems with weight selecting means for bar-bells or dumb-bells
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/06—User-manipulated weights
- A63B21/072—Dumb-bells, bar-bells or the like, e.g. weight discs having an integral peripheral handle
- A63B21/0724—Bar-bells; Hand bars
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/06—User-manipulated weights
- A63B21/072—Dumb-bells, bar-bells or the like, e.g. weight discs having an integral peripheral handle
- A63B21/0728—Dumb-bells, bar-bells or the like, e.g. weight discs having an integral peripheral handle with means for fixing weights on bars, i.e. fixing olympic discs or bumper plates on bar-bells or dumb-bells
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/0054—Features for injury prevention on an apparatus, e.g. shock absorbers
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Rehabilitation Tools (AREA)
Abstract
The invention discloses a barbell using and protecting device, which comprises a mounting block, wherein a mounting cavity with an upward opening is arranged in the mounting block, a weight reducing mechanism is arranged in the mounting cavity and comprises an exercise supporting block fixedly connected with the inner wall of the rear side of the mounting cavity, the invention realizes the installation of the barbell disc by arranging a special sliding track of the barbell disc, when the body builder can not hold the barbell but can hold the barbell, the barbell plates can be sequentially moved out of the barbell bar through the moving device, so that the weight of the barbell is reduced, when the body builder can not hold the barbell to drop the barbell, the protection device can be started to support the barbell disc at a safe position, so that the barbell disc is prevented from smashing a person.
Description
Technical Field
The invention relates to the field of fitness equipment, in particular to barbell use protection equipment.
Background
The barbell is a core training exercise training device and is also a device for lifting weight, the existing gymnasium is not only provided with the barbell, but also provided with a Smith frame used by the Smith auxiliary barbell, the Smith frame is a very useful fitness device, the sliding track of the barbell is limited, a trainer can use large weight with great confidence, however, the existing fitness enthusiasts are often accompanied with the situation of losing power when using the barbell, after losing power, if the exerciser can hold the barbell, muscle strain can be caused, if the exerciser can not hold the barbell, the danger of injuring the exerciser can be caused, and the life can be seriously threatened even.
Disclosure of Invention
The invention aims to provide a barbell use protection device, which overcomes the problems that a fitness fan breaks away during barbell training, the weight of a barbell disc cannot be timely reduced, and the barbell is accidentally injured due to the fact that hands are taken off.
The invention is realized by the following technical scheme.
The invention relates to a barbell using protection device, which comprises a mounting block, wherein a mounting cavity with an upward opening is arranged in the mounting block, a weight reducing mechanism is arranged in the mounting cavity, the weight reducing mechanism comprises an exercise supporting block fixedly connected with the inner wall of the rear side of the mounting cavity, the inner wall of the rear side of the mounting cavity is provided with an outer hydraulic machine in sliding connection, the right end surface of the outer hydraulic machine is provided with an outer moving threaded rod in rotating connection, the inner wall of the rear side of the mounting cavity is provided with an outer fixed threaded block in fixed connection, the outer fixed threaded block is in threaded connection with the outer moving threaded rod, the upper end surface of the exercise supporting block is provided with a pedal fixing block in fixed connection, a pedal sliding groove with an upward opening is arranged in the pedal fixing block, a pedal supporting spring fixedly connected with the upper end surface of the exercise supporting block is arranged in the pedal, the lower end face of the pedal is provided with two sliding racks which are fixedly connected, the two sliding racks are bilaterally symmetrical about the placement cavity, the sliding racks are connected with the exercise supporting block in a sliding mode, the exercise supporting block is respectively provided with inner side meshing teeth, middle meshing teeth and outer side meshing teeth, the right end face of the outer side moving threaded rod is provided with an outer side gear which is fixedly connected, and the outer side gear is meshed with the outer side meshing teeth; the protection mechanism is also arranged in the arrangement cavity and comprises a supporting block fixedly connected with the upper end face of the outer side hydraulic machine, a hydraulic cavity with an upward opening is arranged in the supporting block, a supporting slide rod fixedly connected with the upper end face of the outer side hydraulic machine is arranged in the hydraulic cavity, a supporting slide block in sliding connection is arranged in the hydraulic cavity, a supporting slide cavity is arranged in the supporting slide block, a supporting slide rod in sliding connection is arranged in the supporting slide cavity, a supporting plate in fixed connection is arranged on the upper end face of the supporting slide rod, a supporting plate slide rod in fixed connection is arranged on the upper end face of the outer side hydraulic machine, a barbell disc in sliding connection is arranged in the supporting plate slide rod, the supporting plate is in sliding connection with the supporting plate slide rod, a barbell bar is arranged in the arrangement cavity and is in sliding connection with the barbell disc, the barbell bar and the barbell disc are in sliding connection, the same, and, and the middle hydraulic machine and the inner side hydraulic machine are both provided with mechanisms the same as the upper end surface of the outer side hydraulic machine.
Preferably, middle hydraulic press right-hand member face is equipped with the middle removal threaded rod of rotation connection, settle chamber rear side inner wall and be equipped with fixed connection's middle fixed thread piece, middle fixed thread piece with middle removal threaded rod threaded connection, middle removal threaded rod left end face is equipped with fixed connection's intermediate gear, intermediate gear can with middle meshing tooth intermeshing, inboard hydraulic press right-hand member face is equipped with the rotation and connects inboard removal threaded rod, settle chamber rear side inner wall and be equipped with fixed connection's inboard fixed thread piece, inboard fixed thread piece with inboard removal threaded rod threaded connection, inboard removal threaded rod right-hand member face is equipped with fixed connection's inboard gear, inboard gear can with inboard meshing tooth intermeshing.
Preferably, the protection mechanism further comprises a speed sensing groove arranged on the support plate, a centrifugal rotating shaft fixedly connected with the support plate is arranged on the support plate, a centrifugal wheel rotatably connected with the centrifugal rotating shaft is arranged on the centrifugal rotating shaft, a centrifugal chute with an opening far away from the centrifugal rotating shaft is arranged on the centrifugal wheel, six circumferential arrays are arranged on the centrifugal chute, a centrifugal spring fixedly connected with the centrifugal wheel is arranged in the centrifugal chute, a centrifugal slider slidably connected with the centrifugal chute is arranged in the centrifugal chute, the centrifugal slider is fixedly connected with the centrifugal spring, a fixedly connected hydraulic switch is arranged on the support plate, a fixedly connected lead is arranged on the lower end face of the hydraulic switch, the lead is fixedly connected with the outside hydraulic machine, a fixedly connected safety hook is arranged on the barbell bar, and a fixedly connected safety bar is arranged on the upper end face of the exercise support block, the barbell bar is characterized in that a rail sliding block is arranged in the bumper bar and is in sliding connection with the bumper bar, the rail sliding block is in rotating connection with the barbell bar, and a plurality of bumper clamping blocks are arranged on the sliding rail in an array mode.
Preferably, the outer meshing teeth and the outer gear are directly meshed with each other. There is a distance between the middle meshing tooth and the middle gear, and the distance between the inner side meshing tooth and the inner side gear is larger than the distance between the middle meshing tooth and the middle gear. .
The invention has the beneficial effects that: the barbell disc is installed by arranging the special sliding rail for the barbell disc, and when a body builder cannot support the barbell but can hold the barbell, the barbell disc can be sequentially moved out of the barbell rod through the moving device to achieve the purpose of reducing the weight of the barbell.
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, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of the embodiment of the present invention in the direction of A-A in FIG. 1;
FIG. 3 is an enlarged schematic view of the embodiment of the present invention at B in FIG. 2.
Detailed Description
The invention will now be described in detail with reference to fig. 1-3, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The barbell use protection device described with reference to fig. 1-3 includes a placement block 10, a placement cavity 11 with an upward opening is provided in the placement block 10, a weight reduction mechanism 60 is provided in the placement cavity 11, the weight reduction mechanism 60 includes an exercise support block 54 fixedly connected to the rear inner wall of the placement cavity 11, the rear inner wall of the placement cavity 11 is provided with an outside hydraulic machine 12 in sliding connection, the right end face of the outside hydraulic machine 12 is provided with an outside moving threaded rod 26 in rotating connection, the rear inner wall of the placement cavity 11 is provided with an outside fixed threaded block 41 in fixed connection, the outside fixed threaded block 41 is in threaded connection with the outside moving threaded rod 26, the upper end face of the exercise support block 54 is provided with a fixedly connected pedal fixing block 33, the pedal fixing block 33 is provided with an upward opening pedal chute 35, the pedal chute 35 is provided with a pedal support spring 36 fixedly connected to the upper end face of the exercise support block 54, a pedal 34 in sliding connection is arranged in the pedal sliding groove 35, a sliding rack 30 in fixed connection is arranged on the lower end face of the pedal 34, the sliding rack 30 is provided with two bilaterally symmetrical parts about the installation cavity 11, the sliding rack 30 is in sliding connection with the exercise supporting block 54, the exercise supporting block 54 is respectively provided with an inner meshing tooth 32, a middle meshing tooth 31 and an outer meshing tooth 29, the right end face of the outer moving threaded rod 26 is provided with an outer gear 28 in fixed connection, and the outer gear 28 is meshed with the outer meshing tooth 29; the protection mechanism 61 is further arranged in the placement cavity 11, the protection mechanism 61 comprises a supporting block 13 fixedly connected with the upper end face of the outer side hydraulic press 12, a hydraulic cavity 46 with an upward opening is arranged in the supporting block 13, a supporting slide bar 16 fixedly connected with the upper end face of the outer side hydraulic press 12 is arranged in the hydraulic cavity 46, a supporting slide block 15 in sliding connection is arranged in the hydraulic cavity 46, a supporting slide cavity 45 is arranged in the supporting slide block 15, a supporting slide bar 16 in sliding connection is arranged in the supporting slide cavity 45, a supporting plate 17 fixedly connected with the upper end face of the supporting slide bar 16 is arranged on the upper end face of the outer side hydraulic press 12, a supporting plate slide bar 20 in sliding connection is arranged in the supporting plate slide bar 20, a barbell disc 18 in sliding connection is arranged in the supporting plate 17 and the supporting plate slide bar 20 in sliding connection, and a barbell bar 19 is arranged in, the barbell bar 19 is slidably connected with the barbell disc 18, similarly, the inner wall of the rear side of the accommodating cavity 11 is provided with a middle hydraulic machine 37 and an inner hydraulic machine 55, which are slidably connected, and the middle hydraulic machine 37 and the inner hydraulic machine 55 are both provided with mechanisms which are the same as the upper end surfaces of the outer hydraulic machines 12.
Advantageously, the right end face of the intermediate hydraulic machine 37 is provided with an intermediate mobile threaded rod 38 which is rotatably connected, the inner wall of the rear side of the placing cavity 11 is provided with a middle fixed thread block 40 which is fixedly connected, the middle fixed thread block 40 is in threaded connection with the middle movable threaded rod 38, the left end face of the middle moving threaded rod 38 is provided with a fixedly connected middle gear 57, the middle gear 57 can be meshed with the middle meshing teeth 31, the right end face of the inner hydraulic machine 55 is provided with an inner movable threaded rod 27 which is rotatably connected, the inner wall of the rear side of the placing cavity 11 is provided with an inner fixed threaded block 39 which is fixedly connected, the inner fixed thread block 39 is in threaded connection with the inner movable threaded rod 27, the right end face of the inner movable threaded rod 27 is provided with a fixedly connected inner gear 56, and the inner gear 56 can be meshed with the inner meshing teeth 32.
Beneficially, the protection mechanism 61 further includes a speed sensing slot 49 provided on the support plate 17, a centrifugal rotating shaft 50 fixedly connected to the support plate 17 is provided on the support plate 17, a centrifugal wheel 58 rotatably connected to the centrifugal rotating shaft 50 is provided on the centrifugal wheel 58, a centrifugal chute 51 having an opening far from the centrifugal rotating shaft 50 is provided on the centrifugal wheel 58, six of the circumferential arrays are provided on the centrifugal chute 51 on the centrifugal wheel 58, a centrifugal spring 52 fixedly connected to the centrifugal wheel 58 is provided in the centrifugal chute 51, a centrifugal slider 53 slidably connected to the centrifugal chute 51 is provided in the centrifugal slider 53, the centrifugal slider 53 is fixedly connected to the centrifugal spring 52, a hydraulic switch 48 fixedly connected to the support plate 17 is provided on the support plate 17, a lead 47 fixedly connected to the lower end face of the hydraulic switch 48 is provided, the lead 47 is fixedly connected to the outside hydraulic press 12, and a safety hook 25 fixedly connected to the barbell bar 19 is, the upper end surface of the exercise supporting block 54 is provided with a fixedly connected bumper bar 23, a track slider 21 in sliding connection is arranged in the bumper bar 23, the track slider 21 is rotatably connected with the barbell bar 19, and a plurality of bumper blocks 24 are arranged in an array on the sliding track 22.
Advantageously, the external toothing 29 directly meshes with the external gear 28. A distance exists between the intermediate tooth 31 and the intermediate gear 57, and a distance between the inner tooth 32 and the inner gear 56 is larger than a distance between the intermediate tooth 31 and the intermediate gear 57.
In the initial state, the pedal support spring 36 is in the normal state, the support slide 16 is in the compressed state, the support slide 16 is in the support slide chamber 45, and the support slider 15 is in the hydraulic chamber 46.
Application method
When the device is used, a person stands at the upper end of the exercise supporting block 54, treads the pedal 34 to enable the pedal 34 to move downwards, the pedal 34 drives the sliding rack 30 to move downwards, the sliding rack 30 drives the outer meshing teeth 29, the inner gear 56 and the inner meshing teeth 32 to move downwards, at the moment, the outer meshing teeth 29 are meshed with the outer gear 28, the outer gear 28 rotates, the outer gear 28 drives the outer moving threaded rod 26 to rotate, and due to the fact that the outer moving threaded rod 26 is in threaded connection with the outer fixed threaded block 41, the outer moving threaded rod 26 moves leftwards and drives the outer hydraulic press 12 to move leftwards. The outer hydraulic press 12 drives the support plate slide bar 20 to move the support plate slide bar 20 to the left to move the barbell bar 19 to the left, the barbell bar 19 is moved out of the lever, the pedal 34 can be stepped according to the required weight, the barbell bar 19 is held by hand to move the barbell bar 19 up and down, the barbell bar 19 drives the barbell disc 18 to move up and down, because the support slide bar 16 is in a compressed state, when the barbell disc 18 moves up, the support slide bar 16 pushes the support slider 15 to move up, so that the barbell disc 18 and the support plate 17 are always kept in contact, when a person can firmly hold the barbell disc but needs to reduce the weight of the barbell disc, the pedal 34 can be stepped to move the pedal 34 to make the barbell disc leave the barbell bar 19, and the barbell bar 19 is rotated, the barbell bar 19 drives the safety hook 25 to rotate, the safety hook 25 can be hung on the safety block 24, when the barbell bar 19 is not gripped by the exerciser and the barbell bar 19 falls, at this time, the support plate 17 is driven to move downwards by the speed of the barbell bar 19, the centrifugal wheel 58 rotates due to the excessively high speed, the centrifugal slider 53 slides outwards due to the centrifugal force and continuously strikes the hydraulic switch 48, the hydraulic switch 48 enables the outer side hydraulic machine 12 to be started through the lead 47, the outer side hydraulic machine 12 wants to inject hydraulic oil into the hydraulic cavity 46, so that the hydraulic cavity 46 and the support sliding cavity 45 are filled with hydraulic oil, the support plate 17 stops moving downwards, and the protection effect is achieved.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (4)
1. A barbell use protection device comprises a mounting block, and is characterized in that: the device is characterized in that a mounting cavity with an upward opening is arranged in the mounting block, a weight reducing mechanism is arranged in the mounting cavity, the weight reducing mechanism comprises an exercise supporting block fixedly connected with the rear inner wall of the mounting cavity, an outer side hydraulic press in sliding connection is arranged on the rear inner wall of the mounting cavity, an outer side moving threaded rod in rotating connection is arranged on the right end face of the outer side hydraulic press, an outer side fixed threaded block in fixed connection is arranged on the rear inner wall of the mounting cavity, the outer side fixed threaded block is in threaded connection with the outer side moving threaded rod, a fixedly connected pedal fixing block is arranged on the upper end face of the exercise supporting block, a pedal sliding groove with an upward opening is arranged in the pedal fixing block, a pedal supporting spring fixedly connected with the upper end face of the exercise supporting block is arranged in the pedal sliding groove, a sliding connected pedal is arranged in the, the sliding racks are bilaterally symmetrical about the mounting cavity, the sliding racks are connected with the exercise supporting block in a sliding mode, inner side meshing teeth, middle meshing teeth and outer side meshing teeth are arranged on the exercise supporting block respectively, an outer side gear fixedly connected is arranged on the right end face of the outer side moving threaded rod, and the outer side gear is meshed with the outer side meshing teeth; the protection mechanism is also arranged in the arrangement cavity and comprises a supporting block fixedly connected with the upper end face of the outer side hydraulic machine, a hydraulic cavity with an upward opening is arranged in the supporting block, a supporting slide rod fixedly connected with the upper end face of the outer side hydraulic machine is arranged in the hydraulic cavity, a supporting slide block in sliding connection is arranged in the hydraulic cavity, a supporting slide cavity is arranged in the supporting slide block, a supporting slide rod in sliding connection is arranged in the supporting slide cavity, a supporting plate in fixed connection is arranged on the upper end face of the supporting slide rod, a supporting plate slide rod in fixed connection is arranged on the upper end face of the outer side hydraulic machine, a barbell disc in sliding connection is arranged in the supporting plate slide rod, the supporting plate is in sliding connection with the supporting plate slide rod, a barbell bar is arranged in the arrangement cavity and is in sliding connection with the barbell disc, the barbell bar and the barbell disc are in sliding connection, the same, and, and the middle hydraulic machine and the inner side hydraulic machine are both provided with mechanisms the same as the upper end surface of the outer side hydraulic machine.
2. The barbell use protecting apparatus as claimed in claim 1, wherein: the utility model discloses a hydraulic press, including cavity, intermediate hydraulic press right-hand member, arrangement chamber, intermediate hydraulic press right-hand member, intermediate hydraulic press left-hand member, intermediate hydraulic press right-hand member, intermediate hydraulic press left-hand member, intermediate hydraulic press right-hand member, intermediate hydraulic press left-hand member, intermediate.
3. The barbell use protecting apparatus as claimed in claim 1, wherein: the protection mechanism further comprises a speed sensing groove arranged on the support plate, a centrifugal rotating shaft fixedly connected with the support plate is arranged on the support plate, a centrifugal wheel rotatably connected with the centrifugal rotating shaft is arranged on the centrifugal rotating shaft, a centrifugal chute with an opening far away from the centrifugal rotating shaft is arranged on the centrifugal wheel, six circumferential arrays are arranged on the centrifugal chute, a centrifugal spring fixedly connected with the centrifugal wheel is arranged in the centrifugal chute, a centrifugal slider in sliding connection is arranged in the centrifugal chute, the centrifugal slider is fixedly connected with the centrifugal spring, a hydraulic switch fixedly connected with the support plate is arranged on the support plate, a lead wire fixedly connected with the hydraulic switch is arranged on the lower end face of the hydraulic switch, the lead wire is fixedly connected with the outside hydraulic press, a safety hook fixedly connected with the bell rod is arranged on the bell rod, and a safety rod fixedly connected with the upper end face of, the barbell bar is characterized in that a rail sliding block is arranged in the bumper bar and is in sliding connection with the bumper bar, the rail sliding block is in rotating connection with the barbell bar, and a plurality of bumper clamping blocks are arranged on the sliding rail in an array mode.
4. The barbell use protecting apparatus as claimed in claim 1, wherein: the outer meshing teeth are directly meshed with the outer gear, a distance exists between the middle meshing teeth and the middle gear, and the distance between the inner meshing teeth and the inner gear is larger than the distance between the middle meshing teeth and the middle gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010879719.2A CN111939517A (en) | 2020-08-27 | 2020-08-27 | Use protection equipment of barbell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010879719.2A CN111939517A (en) | 2020-08-27 | 2020-08-27 | Use protection equipment of barbell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111939517A true CN111939517A (en) | 2020-11-17 |
Family
ID=73366906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010879719.2A Withdrawn CN111939517A (en) | 2020-08-27 | 2020-08-27 | Use protection equipment of barbell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111939517A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112755452A (en) * | 2021-03-16 | 2021-05-07 | 苏州秀妍服饰有限公司 | Automatic dead barbell protection device of card |
| CN112972998A (en) * | 2021-04-16 | 2021-06-18 | 苏州市小瑞瑞贸易有限公司 | Barbell rack without track limitation and with falling protection function |
-
2020
- 2020-08-27 CN CN202010879719.2A patent/CN111939517A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112755452A (en) * | 2021-03-16 | 2021-05-07 | 苏州秀妍服饰有限公司 | Automatic dead barbell protection device of card |
| CN112755452B (en) * | 2021-03-16 | 2022-01-04 | 新沂市五联电气科技有限公司 | Automatic dead barbell protection device of card |
| CN112972998A (en) * | 2021-04-16 | 2021-06-18 | 苏州市小瑞瑞贸易有限公司 | Barbell rack without track limitation and with falling protection function |
| CN112972998B (en) * | 2021-04-16 | 2022-10-11 | 宿州市芸芯通讯科技有限公司 | Barbell rack without track limitation and with falling protection function |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20201117 |