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1. 发明授权

US12070644B2 Double-safety anti-dropping and anti-fracture hook for elastic belt 有权
$Double-safety anti-dropping and anti-fracture hook for elastic belt$
公开(公告)号：US12070644B2
公开(公告)日：2024-08-27
申请号：US17857079
申请日：2022-07-04
申请人： Chengjin Yao
发明人： Chengjin Yao
IPC分类号： A63B21/055 , A63B21/04 , A63B71/00
CPC分类号： A63B21/0557 , A63B21/055 , A63B71/0054 , A63B21/04 , A63B21/0407
摘要： A double-safety anti-dropping and anti-fracture hook for an elastic belt comprises a main hook body, wherein a small end of the main hook body is provided with a first connecting hole, a big end of the main hook body is provided with a second connecting hole, the second connecting hole runs through the main hook body in a radial direction, and the main hook body is also provided with a tapered hole communicated with the second connecting hole in an axial direction, and a cross section of the tapered hole increases from the big end of the main hook body to the direction of the second connecting hole; and the big end of the main hook body is also provided with a notch, which ensures that the elastic belt will not cause injury to personnel in case of releasing or fracture.

2. 发明授权

US11219795B1 Electronically controlled adjustable dumbbell 有权
公开(公告)号：US11219795B1
公开(公告)日：2022-01-11
申请号：US17392393
申请日：2021-08-03
申请人： Chengjin Yao
发明人： Chengjin Yao
IPC分类号： A63B21/075 , A63B24/00 , A63B21/072 , A63B71/06
摘要： The invention discloses an electronically controlled adjustable dumbbell comprising a handle grip, a weight stack, a base, an end cover, an electronic control system and a weight stack locking structure, wherein the weight stack is located below the handle grip. The invention solves the existing problems of adjustable dumbbells as follows: firstly, the operation is so complicated and cumbersome that it is quite difficult to adjust the weight in one try, and the novice who is new to the adjustable dumbbells cannot quickly adjust the weight plate; secondly, visually the product looks too complicated since the number that needs to be adjusted is printed on the cylindrical surface, and half of the numbers on the handle surface are located below the handle grip, which is difficult to see by the user; thirdly, the lack of modernity and inadequate aesthetics hinders product sales and makes it difficult to make profit quickly.

3. 发明公开

US20240001216A1 HAND GUARD SLEEVE WITH OPENING FOR ELASTIC BELT 审中-公开
公开(公告)号：US20240001216A1
公开(公告)日：2024-01-04
申请号：US17857075
申请日：2022-07-04
申请人： Chengjin Yao
发明人： Chengjin Yao
IPC分类号： A63B71/14
CPC分类号： A63B71/14
摘要： A hand guard sleeve for an elastic belt with an opening comprises a gripping part which can be held by a trainer with one hand or both hands, and fan ears integrally formed on two sides of the gripping part, wherein the gripping part is provided with a first opening along a length direction, and the fan ears are provided with a second opening, the first opening and the second opening are connected with each other in a straight line, the second opening is wide outside and narrow inside, and the inner dimension of the second opening is matched with the first opening; the hand guard sleeve can be quickly combined with the elastic belt, that is, the elastic belt can be stretched and then put into the second opening and the first opening, so that the hands of the trainer can be protected during use, and the hand guard sleeve can also be used for vertical exercises, that is, the elastic rope is vertically pulled up and down, so that the training modes are more diverse. The design of the second opening is wide outside and narrow inside is convenient for an elastic belt to be put into the middle of the hand guard sleeve, and it is not easy to get off.

4. 发明公开

US20240001189A1 DOUBLE-SAFETY ANTI-DROPPING AND ANTI-FRACTURE HOOK FOR ELASTIC BELT 审中-公开
公开(公告)号：US20240001189A1
公开(公告)日：2024-01-04
申请号：US17857079
申请日：2022-07-04
申请人： Chengjin Yao
发明人： Chengjin Yao
IPC分类号： A63B21/055 , A63B71/00
CPC分类号： A63B21/0557 , A63B71/0054
摘要： A double-safety anti-dropping and anti-fracture hook for an elastic belt comprises a main hook body, wherein a small end of the main hook body is provided with a first connecting hole, a big end of the main hook body is provided with a second connecting hole, the second connecting hole runs through the main hook body in a radial direction, and the main hook body is also provided with a tapered hole communicated with the second connecting hole in an axial direction, and a cross section of the tapered hole increases from the big end of the main hook body to the direction of the second connecting hole; and the big end of the main hook body is also provided with a notch so that the elastic belt can enter from the position of the notch and be clamped at the tapered hole, and a connecting beam is arranged in the second connecting hole, so that a safety rope penetrating through the elastic belt can be tied on the connecting beam; the elastic belt is hollow, and when the elastic belt is connected with the hook, the safety rope plays the role of secondary locking, which ensures that the elastic belt will not cause injury to personnel in case of releasing or fracture.

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