技术领域technical field
本发明属于健身器材技术领域，具体涉及一种可加载负重的腹肌训练装置。The invention belongs to the technical field of fitness equipment, and in particular relates to a weight-bearing abdominal muscle training device.
背景技术Background technique
腹肌是人体结缔组织组成中的重要部分，包括腹直肌、腹外斜肌、腹内斜肌和腹横肌。当腹肌收缩时，可以使躯干弯曲及旋转，并可以防止骨盆前倾。腹部肌肉对于腰椎的活动和稳定性也有相当重要的作用，还可以控制骨盆与脊柱的活动。软弱无力的腹肌可能导致骨盆前倾和腰椎生理弯曲增加，并增加腰背痛的几率。仰卧起坐作为一种锻炼身体的方式，可以有效锻炼腹肌，深受人们的喜爱。仰卧起坐的训练方法为：仰卧，两腿并拢，两手上举，利用腹肌收缩，两臂向前摆动，迅速成坐姿，上体继续前屈，两手触脚面，低头，然后还原成坐姿，如此连续进行。The abdominal muscles are an important part of the connective tissue in the human body, including the rectus abdominis, external obliques, internal obliques and transverse abdominis. When the abdominal muscles contract, they flex and rotate the trunk and prevent the pelvis from tilting forward. The abdominal muscles also play a very important role in the activity and stability of the lumbar spine, and can also control the activities of the pelvis and spine. Weak abdominal muscles can lead to anterior pelvic tilt and increased physiological curvature of the lumbar spine, and increase the chance of low back pain. As a way of exercising the body, sit-ups can effectively exercise the abdominal muscles and are deeply loved by people. The training method for sit-ups is: lie on your back, keep your legs together, lift your hands up, use your abdominal muscles to contract, swing your arms forward, quickly get into a sitting position, continue to bend your upper body forward, touch your feet with your hands, bow your head, and then return to a sitting position. And so on.
中国健身器材行业的发展始于20世纪80年代末，随着中国加入WTO和北京申奥的成功，为健身器材行业的发展提供了有利条件和发展机遇，健身队伍的不断扩大为健身器材生产商带来浓厚商机。市面上出现了各种各样的仰卧起坐训练器，以实现锻炼腹肌的目的。然而，现有的仰卧起坐训练器大多设计为固定结构，加载重量采用手握哑铃片的方式，不仅操作不便，而且哑铃片的加载数量有限，除此之外，还存在一定的安全隐患。The development of China's fitness equipment industry began in the late 1980s. With China's accession to the WTO and the success of Beijing's bid for the Olympic Games, favorable conditions and development opportunities have been provided for the development of the fitness equipment industry. The continuous expansion of the fitness team has brought fitness equipment manufacturers. To enrich business opportunities. Various sit-up trainers have appeared on the market to achieve the purpose of exercising the abdominal muscles. However, most of the existing sit-up trainers are designed as fixed structures, and the weight is loaded by holding dumbbell plates, which is not only inconvenient to operate, but also has a limited number of loaded dumbbell plates. In addition, there are certain safety hazards.
发明内容Contents of the invention
本发明目的是：旨在提供一种可加载负重的腹肌训练装置，不仅加载重量的操作简单、安全，而且可以按需加载多个哑铃片，可以满足大多数训练者的锻炼需求。The purpose of the present invention is to provide a weight-bearing abdominal muscle training device, which is not only easy and safe to load weight, but also can load multiple dumbbell plates as required, which can meet the exercise needs of most trainers.
为实现上述技术目的，本发明采用的技术方案如下：For realizing above-mentioned technical purpose, the technical scheme that the present invention adopts is as follows:
一种可加载负重的腹肌训练装置，包括前支撑杆、后支撑杆、连接杆、立柱、背靠板铰接杆、坐高铰接杆和腿部支撑杆，所述的前支撑杆和后支撑杆平行且水平相对设置，所述的立柱垂直固接于后支撑杆的中部，所述连接杆的一端固接于前支撑杆的中部、另一端固接于立柱的上部，所述连接杆于靠近前支撑杆的端面上固接有限位组件，所述立柱的顶部与背靠板铰接杆的一端铰接，所述背靠板铰接杆自由端上部固定有坐板，所述坐板的后端铰接有背靠板，所述背靠板的活动段搁置于背靠板铰接杆的上表面，所述背靠板铰接杆自由端下部与坐高铰接杆的一端铰接，所述坐高铰接杆的自由端通过限位组件进行限位固定，所述背靠板铰接杆的自由端中部与腿部支撑杆的一端固定，所述腿部支撑杆的另一端向上折弯，所述腿部支撑杆的末端左右两侧均固接有压腿套筒，所述腿部支撑杆于折弯的位置固定有支杆，所述支杆的上部左右两侧固接有支腿套筒，所述支杆的上部前侧固接有套杆，所述的套杆上可套设哑铃片，所述背靠板的上表面左右两边缘位置可拆卸安装有两个结构相同的肩带，所述背靠板的上表面于两肩带之间的位置沿板的延伸方向开设有至少一个加载孔，所述加载孔的孔深尺寸大于哑铃片的厚度尺寸，所述加载孔的孔径尺寸大于哑铃片的直径尺寸，所述加载孔可拆卸安装有盖板。A weight-bearing abdominal muscle training device, comprising a front support rod, a rear support rod, a connecting rod, a column, a back-to-board hinge rod, a sitting height hinge rod and a leg support rod, the front support rod and the rear support rod The rods are parallel and horizontally opposite to each other, the uprights are fixed vertically to the middle part of the rear support rods, one end of the connecting rods is affixed to the middle part of the front support rods, and the other end is affixed to the upper part of the uprights, and the connecting rods are fixed to the upper part of the uprights The limit assembly is fixed on the end surface close to the front support rod, the top of the column is hinged with one end of the back-to-board hinge rod, the upper part of the free end of the back-to-board hinge rod is fixed with a seat plate, and the rear end of the seat plate A back-to-board is hinged, and the movable section of the back-to-board rests on the upper surface of the hinge rod of the back-to-board. The free end of the back-to-board hinge rod is fixed by a limit assembly, the middle part of the free end of the back-to-board hinge rod is fixed to one end of the leg support rod, the other end of the leg support rod is bent upward, and the leg support Leg pressing sleeves are fixedly connected to the left and right sides of the end of the rod, and a support rod is fixed to the bent position of the leg support rod, and leg sleeves are fixedly connected to the left and right sides of the upper part of the support rod. A sleeve rod is fixedly connected to the front side of the upper part of the support rod, and dumbbell pieces can be sleeved on the sleeve rod, and two shoulder straps with the same structure are detachably installed on the left and right edges of the upper surface of the backrest board. The upper surface of the backrest plate is provided with at least one loading hole along the extending direction of the plate at a position between the two shoulder straps, the hole depth of the loading hole is greater than the thickness of the dumbbell plate, and the aperture of the loading hole is greater than the dumbbell The diameter size of the sheet, the loading hole is detachably installed with a cover plate.
采用本发明的技术方案，当需要进行加载腹肌训练时，将哑铃片置入加载孔内，盖上盖板并固定，然后训练者臀部置于坐板上，背部置于背靠板上，双腿置于压腿套筒和支腿套筒之间，双手穿过肩带，使肩带紧贴训练者的双肩，训练者双手上举，利用腹肌收缩，两臂向前摆动，迅速成坐姿，上体继续前屈，两手触脚面，低头，然后还原成坐姿，如此即可进行加载腹肌训练。这样的结构设计，充分利用了背靠板自身的结构以及位置优势结合动作要领，不仅加载重量的操作简单、安全，而且可以按需加载多个哑铃片，可以满足大多数训练者的锻炼需求。Adopting the technical solution of the present invention, when it is necessary to carry out loading abdominal muscle training, put the dumbbell plate into the loading hole, cover the cover plate and fix it, then the trainer’s buttocks are placed on the seat plate, and the back is placed on the backrest plate. Put your legs between the leg press sleeve and the outrigger sleeve, pass your hands through the shoulder straps so that the shoulder straps are close to the trainer's shoulders, the trainer lifts his hands up, uses the contraction of the abdominal muscles, swings the arms forward, and quickly Get into a sitting position, continue to bend your upper body forward, touch your feet with your hands, lower your head, and then return to a sitting position, so that you can perform abdominal muscle training. This kind of structural design makes full use of the structure of the back-to-board itself and its location advantages combined with the essentials of movement. Not only is the operation of loading weight simple and safe, but also multiple dumbbell plates can be loaded on demand, which can meet the exercise needs of most trainers.
进一步，所述限位组件为断面呈U形的槽状结构，所述限位组件的两槽壁均开设有限位孔，从而形成多个相对的限位齿。这样的设计，可以根据训练者身高情况，随意进行坐板高度的调节。Further, the limiting component is a groove structure with a U-shaped cross section, and the two groove walls of the limiting component are provided with limiting holes, thereby forming a plurality of opposing limiting teeth. With such a design, the height of the seat board can be adjusted at will according to the height of the trainer.
进一步，所述背靠板铰接杆为两根，且分别铰接于立柱的顶部左右两侧，所述一相对的限位齿内设有限位杆，所述限位杆的左右两端伸出限位组件的两槽壁外并与两根坐高铰接杆的自由端套接，所述两根背靠板铰接杆的自由端之间固接有支撑杆，所述支撑杆的中部与腿部支撑杆固接。这样的设计，不仅整个结构更加稳固，坐板高度的调节较为顺畅，而且限位效果较佳。Further, there are two hinged rods of the back-to-board, which are respectively hinged on the left and right sides of the top of the column, and a limit rod is arranged in the relative limit tooth, and the left and right ends of the limit rod extend out to limit Out of the two groove walls of the bit assembly and socketed with the free ends of the two sitting height hinged rods, a support rod is fixedly connected between the free ends of the two back-to-board hinged rods, and the middle part of the support rod is connected to the leg The support rod is fixed. Such a design not only makes the whole structure more stable, but also makes the adjustment of the height of the seat board smoother, and has a better limit effect.
进一步，所述压腿套筒、支腿套筒、坐板和背靠板的外壁均匹配套设有软垫。这样的设计，可以让训练者的腿部、臀部和背部均处于非常舒适的状态，使得训练过程更加舒服，设计较为人性化。Further, the outer walls of the leg pressing sleeve, the outrigger sleeve, the seat board and the back board are matched with cushions. Such a design can make the trainer's legs, buttocks and back in a very comfortable state, making the training process more comfortable and the design more humanized.
进一步，所述套杆开设有多个固定孔，所述一固定孔内插设有T字形固定销。这样的设计，可以将闲置的哑铃片暂存在套杆上，并通过T字形固定销限位固定，加载腹肌训练过程更加安全，避免出现意外，设计较为人性化。Further, the sleeve rod is provided with a plurality of fixing holes, and a T-shaped fixing pin is inserted in the fixing hole. With this design, the idle dumbbells can be temporarily stored on the sleeve bar, and fixed by T-shaped fixed pins. The process of loading abdominal muscles is safer, avoiding accidents, and the design is more humanized.
进一步，所述坐板后端面固定有两个半圆形块状支耳，所述背靠板前端面固定有一个半圆形块状挂耳，所述挂耳插入两支耳之间并通过销轴铰接。这样的设计，使得坐板和背靠板之间的铰接结构较为简单，且背靠板旋转过程无干涉，动作顺畅。Further, two semicircular block lugs are fixed on the rear end of the seat board, and a semicircular block lug is fixed on the front end of the backrest board, and the hanging lug is inserted between the two lugs and passed through Pin hinged. Such a design makes the hinge structure between the seat board and the back board relatively simple, and there is no interference in the rotation process of the back board, and the movement is smooth.
进一步，所述加载孔的开口位置沿径向一体成型有多个呈等角度分布的轴向限位块，所述轴向限位块的内壁一端部一体成型有径向限位块，所述盖板为圆板且沿径向一体成型有数量与轴向限位块相等的耳板，所述耳板可与相邻两个轴向限位块之间的间隙匹配，所述盖板的顶面一体成型有十字形把手。这样的设计，可以对盖板进行轴向和径向双重限位，以防止哑铃片从加载孔内脱出，确保训练者安全。Further, the opening position of the loading hole is integrally formed with a plurality of axial limit blocks distributed at an equal angle along the radial direction, and one end of the inner wall of the axial limit block is integrally formed with a radial limit block. The cover plate is a circular plate and is integrally formed in the radial direction with ear plates equal in number to the axial limit blocks. The ear plates can match the gap between two adjacent axial limit blocks. The top surface is integrally formed with a cross-shaped handle. With such a design, the cover plate can be limited axially and radially, so as to prevent the dumbbell plate from coming out of the loading hole and ensure the safety of the trainer.
进一步，所述肩带为两段伸缩带，所述伸缩带的一端与背靠板连接，且伸缩带的两个自由端卡扣连接。这样的设计，可以根据训练者个体的差异性，随时调整肩带，使训练者更加舒适，满足更多人群的锻炼需求。Further, the shoulder straps are two sections of stretchable straps, one end of the stretchable straps is connected to the backrest board, and the two free ends of the stretchable straps are snap-connected. With this design, the shoulder straps can be adjusted at any time according to the individual differences of the trainers, making the trainers more comfortable and meeting the exercise needs of more people.
附图说明Description of drawings
本发明可以通过附图给出的非限定性实施例进一步说明；The invention can be further illustrated by the non-limiting examples given in the accompanying drawings;
图1为本发明一种可加载负重的腹肌训练装置实施例的立体结构示意图一；Fig. 1 is a three-dimensional structural schematic diagram of a loadable abdominal muscle training device embodiment of the present invention;
图2为本发明一种可加载负重的腹肌训练装置实施例的立体结构示意图二；Fig. 2 is a three-dimensional structural schematic diagram of an embodiment of a weight-bearing abdominal muscle training device embodiment of the present invention;
图3为图2中A处的放大结构示意图；Fig. 3 is the schematic diagram of the enlarged structure of place A in Fig. 2;
图4为图2中B处的放大结构示意图；Fig. 4 is a schematic diagram of an enlarged structure at B in Fig. 2;
图5为本发明一种可加载负重的腹肌训练装置实施例中盖板的立体结构示意图；Fig. 5 is a three-dimensional structural schematic diagram of a cover plate in an embodiment of a weight-bearing abdominal muscle training device according to the present invention;
图示中的符号说明如下：The symbols in the diagram are explained as follows:
1.前支撑杆，2.后支撑杆，3.连接杆，30.限位组件，4.立柱，5.背靠板铰接杆，50.坐板，51.背靠板，510.肩带，511.加载孔，512.轴向限位块，513.盖板，6.坐高铰接杆，7.腿部支撑杆，70.压腿套筒，71.支杆，710.支腿套筒，711.套杆，712.哑铃片。1. Front support rod, 2. Rear support rod, 3. Connecting rod, 30. Limit component, 4. Column, 5. Back-to-board hinge rod, 50. Seat board, 51. Back-to-board, 510. Shoulder belt , 511. Loading hole, 512. Axial limit block, 513. Cover plate, 6. Seat height hinge rod, 7. Leg support rod, 70. Leg pressing sleeve, 71. Prop, 710. Outrigger cover Barrel, 711. cover bar, 712. dumbbell piece.
具体实施方式detailed description
为了使本领域的技术人员可以更好地理解本发明，下面结合附图和实施例对本发明技术方案进一步说明。In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.
如图1～图5所示，本发明的一种可加载负重的腹肌训练装置，包括前支撑杆1、后支撑杆2、连接杆3、立柱4、背靠板铰接杆5、坐高铰接杆6和腿部支撑杆7，前支撑杆1和后支撑杆2平行且水平相对设置，立柱4垂直固接于后支撑杆2的中部，连接杆3的一端固接于前支撑杆1的中部、另一端固接于立柱4的上部，连接杆3于靠近前支撑杆1的端面上固接有限位组件30，立柱4的顶部与背靠板铰接杆5的一端铰接，背靠板铰接杆5自由端上部固定有坐板50，坐板50的后端铰接有背靠板51，背靠板51的活动段搁置于背靠板铰接杆5的上表面，背靠板铰接杆5自由端下部与坐高铰接杆6的一端铰接，坐高铰接杆6的自由端通过限位组件30进行限位固定，背靠板铰接杆5的自由端中部与腿部支撑杆7的一端固定，腿部支撑杆7的另一端向上折弯，腿部支撑杆7的末端左右两侧均固接有压腿套筒70，腿部支撑杆7于折弯的位置固定有支杆71，支杆71的上部左右两侧固接有支腿套筒710，支杆71的上部前侧固接有套杆711，套杆711上可套设哑铃片712，背靠板51的上表面左右两边缘位置可拆卸安装有两个结构相同的肩带510，背靠板51的上表面于两肩带510之间的位置沿板的延伸方向开设有至少一个加载孔511，加载孔511的孔深尺寸大于哑铃片712的厚度尺寸，加载孔511的孔径尺寸大于哑铃片712的直径尺寸，加载孔511可拆卸安装有盖板513。As shown in Figures 1 to 5, a weight-bearing abdominal muscle training device of the present invention includes a front support rod 1, a rear support rod 2, a connecting rod 3, a column 4, a back-to-board hinge rod 5, a sitting height The hinged rod 6 and the leg support rod 7, the front support rod 1 and the rear support rod 2 are arranged parallel and horizontally opposite each other, the column 4 is vertically fixed to the middle part of the rear support rod 2, and one end of the connecting rod 3 is fixed to the front support rod 1 The middle part and the other end are affixed to the top of the column 4, the connecting rod 3 is fixedly connected to the limit assembly 30 on the end surface close to the front support rod 1, and the top of the column 4 is hinged with one end of the back-to-board hinge rod 5, and the back-to-board The upper free end of hinged rod 5 is fixed with seat board 50, and the rear end of seat board 50 is hinged with back board 51, and the movable section of back board 51 is placed on the upper surface of back board hinged rod 5, and back board hinged rod 5 The lower part of the free end is hinged with one end of the sitting height hinged rod 6, the free end of the sitting height hinged rod 6 is limited and fixed by the limit assembly 30, and the middle part of the free end of the back-to-board hinged rod 5 is fixed with one end of the leg support rod 7 , the other end of the leg support rod 7 is bent upwards, the left and right sides of the end of the leg support rod 7 are fixedly connected with leg pressing sleeves 70, the leg support rod 7 is fixed with a support rod 71 at the bent position, and the support The upper left and right sides of the upper part of the rod 71 are fixedly connected with a leg sleeve 710, and the upper front side of the rod 71 is fixedly connected with a sleeve rod 711, and a dumbbell plate 712 can be sleeved on the sleeve rod 711. Two shoulder straps 510 with the same structure are detachably installed at the edge position, and at least one loading hole 511 is opened on the upper surface of the backing board 51 at the position between the two shoulder straps 510 along the extending direction of the board, and the hole depth of the loading hole 511 is The size is larger than the thickness of the dumbbell piece 712 , the aperture size of the loading hole 511 is larger than the diameter of the dumbbell piece 712 , and the loading hole 511 is detachably equipped with a cover plate 513 .
本实施例中，当需要进行加载腹肌训练时，将哑铃片712置入加载孔511内，盖上盖板513并固定，然后训练者臀部置于坐板50上，背部置于背靠板51上，双腿置于压腿套筒70和支腿套筒710之间，双手穿过肩带510，使肩带510紧贴训练者的双肩，训练者双手上举，利用腹肌收缩，两臂向前摆动，迅速成坐姿，上体继续前屈，两手触脚面，低头，然后还原成坐姿，如此即可进行加载腹肌训练。In this embodiment, when it is necessary to carry out loading abdominal muscle training, the dumbbell plate 712 is placed in the loading hole 511, the cover plate 513 is covered and fixed, and then the trainer's buttocks are placed on the seat board 50, and the back is placed on the back board 51, the legs are placed between the leg press sleeve 70 and the outrigger sleeve 710, and the hands pass through the shoulder straps 510, so that the shoulder straps 510 are close to the trainer's shoulders, the trainer lifts his hands up, and uses the abdominal muscles to contract Swing your arms forward, quickly become a sitting position, continue to bend your upper body forward, touch your feet with your hands, lower your head, and then return to a sitting position, so that you can perform abdominal muscle training.
作为优选，限位组件30为断面呈U形的槽状结构，限位组件30的两槽壁均开设有限位孔，从而形成多个相对的限位齿。这样的设计，可以根据训练者身高情况，随意进行坐板50高度的调节。实际上，也可以根据实际情况具体考虑限位组件30的结构，只要能够实现对坐高铰接杆6进行限位固定即可。Preferably, the limiting component 30 is a groove structure with a U-shaped cross section, and the two groove walls of the limiting component 30 are provided with limiting holes, thereby forming a plurality of opposing limiting teeth. Such a design can freely adjust the height of the seat board 50 according to the height of the trainer. In fact, the structure of the limit assembly 30 can also be specifically considered according to the actual situation, as long as the limit and fixation of the sitting height hinge rod 6 can be realized.
作为优选，背靠板铰接杆5为两根，且分别铰接于立柱4的顶部左右两侧，一相对的限位齿内设有限位杆，限位杆的左右两端伸出限位组件30的两槽壁外并与两根坐高铰接杆6的自由端套接，两根背靠板铰接杆5的自由端之间固接有支撑杆，支撑杆的中部与腿部支撑杆7固接。这样的设计，不仅整个结构更加稳固，坐板50高度的调节较为顺畅，而且限位效果较佳。实际上，也可以根据实际情况具体考虑结构加固方式以及限位方式。As a preference, there are two back-to-board hinged rods 5, which are respectively hinged on the left and right sides of the top of the column 4, and a limit rod is arranged in a relative limit tooth, and the left and right ends of the limit rod stretch out the limit assembly 30 Out of the two groove walls and with the free ends of the two sitting height hinged rods 6, a support rod is fixedly connected between the free ends of the two back-to-board hinged rods 5, and the middle part of the support rod is fixed to the leg support rod 7. catch. With such a design, not only the whole structure is more stable, but also the adjustment of the height of the seat plate 50 is relatively smooth, and the position-limiting effect is better. In fact, the structural reinforcement method and the limit method can also be considered according to the actual situation.
作为优选，压腿套筒70、支腿套筒710、坐板50和背靠板51的外壁均匹配套设有软垫。这样的设计，可以让训练者的腿部、臀部和背部均处于非常舒适的状态，使得训练过程更加舒服，设计较为人性化。实际上，也可以根据实际情况具体考虑改善舒适性能的其他结构设计方案。Preferably, the outer walls of the leg presser sleeve 70 , the outrigger sleeve 710 , the seat board 50 and the backrest board 51 are all matched with cushions. Such a design can make the trainer's legs, buttocks and back in a very comfortable state, making the training process more comfortable and the design more humanized. In fact, other structural design schemes for improving comfort performance can also be specifically considered according to actual conditions.
作为优选，套杆711开设有多个固定孔，一固定孔内插设有T字形固定销。这样的设计，可以将闲置的哑铃片712暂存在套杆711上，并通过T字形固定销限位固定，加载腹肌训练过程更加安全，避免出现意外，设计较为人性化。实际上，也可以根据实际情况具体考虑其他的安全防护方案。Preferably, the sleeve rod 711 is provided with a plurality of fixing holes, and a T-shaped fixing pin is inserted into one fixing hole. With such a design, the idle dumbbell plate 712 can be temporarily stored on the sleeve rod 711, and fixed by the T-shaped fixing pin. The loading abdominal muscle training process is safer, avoiding accidents, and the design is more humanized. In fact, other security protection schemes can also be specifically considered according to the actual situation.
作为优选，坐板50后端面固定有两个半圆形块状支耳，背靠板51前端面固定有一个半圆形块状挂耳，挂耳插入两支耳之间并通过销轴铰接。这样的设计，使得坐板50和背靠板51之间的铰接结构较为简单，且背靠板51旋转过程无干涉，动作顺畅。实际上，也可以根据实际情况具体考虑坐板50和背靠板51之间的铰接结构。As a preference, two semicircular block lugs are fixed on the rear end of the seat plate 50, and a semicircular block lug is fixed on the front end of the backrest plate 51, and the hanging lug is inserted between the two lugs and hinged by a pin . Such a design makes the hinge structure between the seat board 50 and the back board 51 relatively simple, and the rotation process of the back board 51 has no interference, and the movement is smooth. In fact, the hinged structure between the seat board 50 and the back board 51 can also be specifically considered according to the actual situation.
作为优选，加载孔511的开口位置沿径向一体成型有多个呈等角度分布的轴向限位块512，轴向限位块512的内壁一端部一体成型有径向限位块，盖板513为圆板且沿径向一体成型有数量与轴向限位块512相等的耳板，耳板可与相邻两个轴向限位块512之间的间隙匹配，盖板513的顶面一体成型有十字形把手。这样的设计，可以对盖板513进行轴向和径向双重限位，以防止哑铃片712从加载孔511内脱出，确保训练者安全。实际上，也可以根据实际情况具体考虑防止哑铃片712从加载孔511内脱出的其他安全防护方案。Preferably, the opening position of the loading hole 511 is integrally formed with a plurality of axial limit blocks 512 distributed at an equal angle along the radial direction, and one end of the inner wall of the axial limit block 512 is integrally formed with a radial limit block, and the cover plate 513 is a circular plate and is integrally formed with lugs equal in number to the axial limit block 512 in the radial direction. The lugs can match the gap between two adjacent axial limit blocks 512. The top surface of the cover plate 513 One-piece molding with a cross-shaped handle. With such a design, the cover plate 513 can be limited axially and radially, so as to prevent the dumbbell plate 712 from coming out of the loading hole 511 and ensure the safety of the trainer. In fact, other safety protection schemes to prevent the dumbbell plate 712 from coming out of the loading hole 511 can also be specifically considered according to the actual situation.
作为优选，肩带510为两段伸缩带，伸缩带的一端与背靠板51连接，且伸缩带的两个自由端卡扣连接。这样的设计，可以根据训练者个体的差异性，随时调整肩带510，使训练者更加舒适，满足更多人群的锻炼需求。实际上，也可以根据实际情况具体考虑肩带510的结构。Preferably, the shoulder belt 510 is a two-section telescopic belt, one end of the telescopic belt is connected to the backrest board 51 , and two free ends of the telescopic belt are snap-connected. With such a design, the shoulder straps 510 can be adjusted at any time according to individual differences of the trainers, so that the trainers can be more comfortable and meet the exercise needs of more people. In fact, the structure of the shoulder strap 510 can also be specifically considered according to actual conditions.
上述实施例仅示例性说明本发明的原理及其功效，而非用于限制本发明。任何熟悉此技术的人士皆可在不违背本发明的精神及范畴下，对上述实施例进行修饰或改变。因此，凡所属技术领域中具有通常知识者在未脱离本发明所揭示的精神与技术思想下所完成的一切等效修饰或改变，仍应由本发明的权利要求所涵盖。The above-mentioned embodiments only illustrate the principles and effects of the present invention, but are not intended to limit the present invention. Anyone skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710632506.8ACN107376221B (en) | 2017-07-28 | 2017-07-28 | A kind of abdominal muscle training device loading weight bearing |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710632506.8ACN107376221B (en) | 2017-07-28 | 2017-07-28 | A kind of abdominal muscle training device loading weight bearing |
| Publication Number | Publication Date |
|---|---|
| CN107376221Atrue CN107376221A (en) | 2017-11-24 |
| CN107376221B CN107376221B (en) | 2019-05-24 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710632506.8AExpired - Fee RelatedCN107376221B (en) | 2017-07-28 | 2017-07-28 | A kind of abdominal muscle training device loading weight bearing |
| Country | Link |
|---|---|
| CN (1) | CN107376221B (en) |
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| US5190513A (en)* | 1991-08-21 | 1993-03-02 | Pacific Fitness Corporation | Dual station exercise bench |
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| CN107376221B (en) | 2019-05-24 |
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| CF01 | Termination of patent right due to non-payment of annual fee | Granted publication date:20190524 Termination date:20200728 | |
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