Portable forearm comprehensive training device
By designing a portable forearm comprehensive trainer that includes two training mechanisms and a grip mechanism, the problem of limited functionality and inconvenience of existing portable forearm training equipment is solved, achieving comprehensive forearm muscle group training and convenient home use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 李民
- Filing Date
- 2025-03-17
- Publication Date
- 2026-05-01
AI Technical Summary
Existing portable forearm training equipment has limited functionality, cannot comprehensively train the forearm muscle groups, and is not convenient for home use.
A portable forearm multi-trainer was designed, which includes two training mechanisms and a grip mechanism. The installation mechanism enables flexion, extension and rotation of the wrist joint. Combined with the detachable grip mechanism, it provides a variety of training methods and the resistance level can be adjusted.
It enables comprehensive training of the forearm muscles, improves the practicality and portability of the trainer, and is suitable for home use.
Smart Images

Figure CN224180194U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fitness equipment technology, and in particular to a portable forearm comprehensive training device. Background Technology
[0002] This product effectively strengthens forearm muscles through a variety of exercises that stimulate muscle fibers, making everyday tasks like lifting objects and opening lids easier. It also helps sculpt forearm muscle definition, resulting in more aesthetically pleasing and powerful arms. Furthermore, it improves forearm joint flexibility, reducing the risk of joint injuries caused by prolonged poor posture or overuse of the forearm. Its portability allows for convenient workouts during short breaks at home or in the office, providing health benefits anytime, anywhere.
[0003] Existing portable forearm multi-trainer equipment offers a wide range of functions, utilizing wrist flexion and extension, and radioulnar rotation during forearm muscle contraction for resistance training. However, equipment that fully realizes these functions is bulky and inconvenient to install, making it suitable for large spaces like gyms but not for home workouts. Meanwhile, portable forearm training equipment on the market often has limited functionality. For example, hand grips only utilize finger flexion during forearm muscle contraction, failing to address wrist extension and rotation caused by forearm muscle contraction. Therefore, forearm muscle training is incomplete. Similarly, while wrist flexion and extension exercises utilize wrist flexion and extension, rotation is not addressed, and the need for weighted dumbbell plates further complicates portability. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a portable forearm comprehensive trainer, which aims to improve the problems of existing forearm comprehensive trainers suitable for home exercise that do not comprehensively train the forearm muscle groups or are not very portable.
[0005] To achieve the above objectives, this utility model adopts the following technical solution: a portable forearm comprehensive trainer, comprising two mounting mechanisms, a training mechanism disposed between the two mounting mechanisms, and grip mechanisms disposed on both sides of the training mechanism. The mounting mechanisms are used to provide mounting positions, utilizing...
[0006] The rotation of the grip mechanism drives the training mechanism to exercise the forearm.
[0007] As a further description of the above technical solution:
[0008] The installation mechanism includes a G-frame, one side of which is threaded with a bolt, and the inner side of the bolt is rotatably connected to a rotating circular plate. The outer side of the G-frame away from the bolt is threaded with a positioning screw, and the side of the G-frame away from the rotating circular plate is fixedly connected with a mounting column. A spring clip is provided on the outside of the mounting column.
[0009] As a further description of the above technical solution:
[0010] The training mechanism includes a mounting shell, inside which multiple clamping plates are rotatably connected. Each clamping plate has an insertion hole inside and a notch in the middle. Two pulleys are rotatably connected to the outer sides of each clamping plate. Sliding grooves are formed on both sides of the interior of the mounting shell. Multiple partitions are fixedly connected inside the mounting shell, and iron rings are fixedly connected between the partitions. Multiple arc-shaped springs are sleeved on the outside of each iron ring. Multiple sliding grooves are formed on both sides of the mounting shell. Two mounting plates are fixedly connected to the outside of the mounting shell.
[0011] As a further description of the above technical solution:
[0012] The grip mechanism includes a central rod, with two limiting posts fixedly connected to the side of the central rod near the training mechanism. A base is fitted around the outside of the central rod, and a sleeve is fitted around the outside of the central rod. A connecting rod is fixedly connected to the outside of the sleeve, and an insert rod is slidably connected to the side of the connecting rod near the training mechanism. Two fixing posts are fixedly connected to the outside of the sleeve, and a small grip is fitted around the side of the fixing posts away from the training mechanism. Threaded grooves are formed in the middle of both sides of the mounting housing, and limiting grooves are formed in the middle of both sides of the mounting housing. The limiting posts are located inside the limiting grooves. The internal thread of the base is connected to the outer side of the middle of the threaded groove, and the insert rod is located inside the insertion hole.
[0013] As a further description of the above technical solution:
[0014] One end of each of the multiple arc-shaped springs is fixedly connected to one side of each of the multiple clamping plates, and the other end of each of the multiple arc-shaped springs is fixedly connected to the other side of each of the multiple clamping plates.
[0015] As a further description of the above technical solution:
[0016] The pulley is disposed inside the sliding groove, and the outside of the iron ring is slidably connected to the inside of the notch.
[0017] As a further description of the above technical solution:
[0018] Both of the fixed posts are externally engaged with the inside of the small grip near the training mechanism, and a bearing is provided on the inner side of the sleeve.
[0019] As a further description of the above technical solution:
[0020] Anti-slip pads are provided on the inner side of the rotating circular plate and the inner side of the G-shaped frame, and a door is provided between the inner side of the rotating circular plate and the inner side of the G-shaped frame.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, two different training methods are achieved through the cooperation of two training mechanisms and a grip mechanism. At the same time, it can realize the flexion, extension and rotation of the wrist joint when the forearm muscle group contracts, which can comprehensively train the forearm muscle group and improve the practicality of the forearm comprehensive trainer.
[0023] 2. In this utility model, the combination of the installation mechanism, the relatively small training mechanism, and the easily detachable grip mechanism achieves the advantages of small size, easy installation, and easy adjustment of resistance, thereby realizing the functions of convenient home use and easy to carry and install, thus improving the portability of the forearm comprehensive trainer. Attached Figure Description
[0024] Figure 1 is a perspective view of the portable forearm comprehensive training device proposed in this utility model;
[0025] Figure 2 is a structural diagram of the housing installed in the portable forearm comprehensive trainer proposed in this utility model;
[0026] Figure 3 is a schematic diagram of the sliding groove in the portable forearm comprehensive trainer proposed in this utility model;
[0027] Figure 4 is a schematic diagram of the clamping plate in the portable forearm comprehensive trainer proposed in this utility model;
[0028] Figure 5 is a schematic diagram of the grip mechanism in the portable forearm comprehensive trainer proposed in this utility model;
[0029] Figure 6 is a schematic diagram of the sleeve structure in the portable forearm comprehensive trainer proposed in this utility model;
[0030] Figure 7 is a schematic diagram of the limiting column in the portable forearm comprehensive trainer proposed in this utility model;
[0031] Figure 8 is a perspective view of Embodiment 2 of the portable forearm comprehensive trainer proposed in this utility model;
[0032] Figure 9 is a schematic diagram of the training mechanism structure of Embodiment 2 of the portable forearm comprehensive trainer proposed in this utility model.
[0033] Legend:
[0034] 1. Installation Mechanism; 101. G-frame; 102. Bolt; 103. Rotating circular plate; 104. Positioning screw; 105. Mounting column; 106. Spring clip; 2. Training Mechanism; 201. Mounting housing; 202. Clamping plate; 203. Insertion hole; 204. Notch; 205. Pulley; 206. Sliding groove; 207. Partition plate; 208. Iron ring; 209. Curved spring; 210. Slide groove; 211. Mounting plate; 3. Grip Mechanism; 301. Center rod; 302. Limiting column; 303. Base; 304. Sleeve; 305. Connecting rod; 306. Inserting rod; 307. Fixing column; 308. Small grip; 309. Threaded groove; 310. Limiting groove; 4. Door. Detailed Implementation
[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0036] Example 1:
[0037] Referring to Figures 1-9, one embodiment of this utility model is a portable forearm comprehensive trainer, which includes two mounting mechanisms 1 and a training mechanism 2 disposed between the two mounting mechanisms 1. A handle mechanism 3 is disposed on both sides of the training mechanism 2. The mounting mechanisms 1 are used to provide the mounting position. The rotation of the handle mechanism 3 can drive the training mechanism 2 to operate for forearm training.
[0038] Mounting mechanism 1 includes a G-frame 101, which provides mounting conditions. A bolt 102 is threaded onto one side of the G-frame 101. A rotating circular plate 103 is rotatably connected to the inner side of the bolt 102. Tightening the bolt 102 moves the rotating circular plate 103 inwards towards the G-frame 101, thus securing the G-frame 101. A positioning screw 104 is threaded onto the outer side of the G-frame 101, away from the bolt 102. The positioning screw 104 is used to mount the training mechanism 2. The outer side of the G-frame 101 away from the rotating circular plate 103...
[0039] A mounting post 105 is fixedly connected to the side, and a spring clip 106 is provided on the outside of the mounting post 105. The mounting post 105 and the spring clip 106 cooperate to install a training mechanism 2 with another method of use.
[0040] Training facility 2 includes mounting housing 201, which provides a mounting location.
[0041] Eight clamping plates 202 are rotatably connected inside 201. Each clamping plate 202 has an insertion hole 203 inside.
[0042] A notch 204 is provided in the middle of the clamp 202, and two pulleys 205 are rotatably connected to the outer side of the clamp 202.
[0043] 205. To facilitate the rotation of the clamping plate 202 within the mounting housing 201, sliding grooves 206 are provided on both sides of the interior of the mounting housing 201. These sliding grooves 206 provide a rotational track for the clamping plate 202. Four partitions 207 are fixedly connected inside the mounting housing 201, dividing the space within the mounting housing 201.
[0044] An iron ring 208 is fixedly connected between 207, which restricts the trajectory of the arc springs 209. Four arc springs 209 are sleeved on the outside of the iron ring 208. The clamping plate 202 can compress the arc springs 209 and use the reaction force of the arc springs 209 to provide resistance, thereby achieving the exercise effect. The four arc springs have different elastic forces, which can adapt to the exercise intensity at different stages of exercise. Four sliding grooves 210 are opened on both sides of the mounting shell 201, which provide sliding tracks. Two mounting plates 211 are fixedly connected to the outside of the mounting shell 201, which can be used for mounting. The four arc springs
[0045] One end of 209 is fixedly connected to one side of one of the four clamping plates 202, and the other end of the four arc springs 209 is fixedly connected to the other side of the other four clamping plates 202. The pulley 205 is set inside the sliding groove 206, and the outside of the iron ring 208 is slidably connected to the inside of the notch 204.
[0046] The grip mechanism 3 includes a center rod 301, which provides an installation position. Two limiting posts 302 are fixedly connected to the side of the center rod 301 closest to the training mechanism 2, preventing rotation of the center rod 301. A base 303 is fitted around the center rod 301 to fix it. A sleeve 304 is fitted around the center rod 301, allowing it to rotate outside the center rod 301. A connecting rod 305 is fixedly connected to the outside of the sleeve 304, enabling rotation of the clamping plate 202. A insertion rod 306 is slidably connected to the side of the connecting rod 305 closest to the training mechanism 2, inserting into the insertion hole 203, thereby allowing the clamping plate 202 to rotate using the connecting rod 305. Two fixing posts 307 are fixedly connected to the outside of the sleeve 304, with a fixing post 307 fitted around the side furthest from the training mechanism 2.
[0047] The small grip 308, together with the fixing post 307, can drive the sleeve 304 to rotate. Threaded grooves 309 are provided in the middle of both sides of the mounting housing 201. The threaded grooves 309 are used to fix the base 303. Limiting grooves 310 are provided in the middle of both sides of the mounting housing 201. The limiting post 302 is set inside the limiting groove 310. The internal thread of the base 303 is connected to the outer side of the middle of the threaded groove 309. The insertion rod 306 is set inside the insertion hole 203. The external parts of the two fixing posts 307 are engaged inside the small grip 308 on the side near the training mechanism 2. The inner side of the sleeve 304 is provided with a bearing. Anti-slip pads are provided on the inner side of the rotating circular plate 103 and the inner side of the G-type frame 101. A door 4 is provided between the inner side of the rotating circular plate 103 and the inner side of the G-type frame 101.
[0048] Example 2:
[0049] In Embodiment 1, there are four clamps 202, two iron rings 208, and two sliding grooves 210. The rotation angle between the two clamps 202 changes from nearly 90 degrees to nearly 180 degrees. Furthermore, during exercise, the gripping and rotating of the sleeve 304 is changed from holding it horizontally and rotating it.
[0050] Working principle: During forearm training, first place the forked end of the G-frame 101 on one side of the door 4, and rotate the bolt 102. After the bolt 102 rotates, it moves inward to the G-frame 101, which in turn drives the rotating plate 103 to move inward. This causes the rotating plate 103 to press against the outside of the door 4, thus completing the installation of the two G-frames 101.
[0051] After installing the G-frame 101, align the mounting plate 211 of the mounting shell 201 in Embodiment 1 with the interior of the two G-frames 101 and insert it into the interior of the G-frame 101. Then screw the positioning screw 104 into the interior of the G-frame 101 and through the hole on the mounting plate 211. At this point, the mounting shell 201 in Embodiment 1 can be installed. After installing the grip mechanism 3 on the training mechanism 2, the exerciser can grip the outside of one or two grip mechanisms 3 and rotate them. When the grip mechanism 3 rotates, it can drive two of the clamps 202 to rotate towards the center. Then, the two clamps 202 can compress the arc spring 209. The reaction force of the arc spring 209 applies resistance to the rotation of the grip mechanism 3, thereby enabling the extension and rotation of the wrist joint when the forearm muscles contract.
[0052] When exercising, first align the limiting post 302 with the limiting groove 310, and insert the center rod 301 and the limiting post 302 into the limiting groove 310. Then screw the base 303 into the outer middle of the threaded groove 309. Next, insert the insertion rod 306 into the insertion hole 203. Then rotate the sleeve 304.
[0053] After 304 rotates, it can drive the connecting rod 305 to rotate, and after the connecting rod 305 rotates, it can drive the insert rod.
[0054] Rotating the insert rod 306 will cause the clamping plate 202 to rotate and compress the arc spring 209 for exercise. When performing the training in Embodiment 2, first align the groove on the small grip 308 with the fixed post 307 on the side of the sleeve 304 away from the training mechanism 2, and insert the small grip 308 into the outside of the sleeve 304. This completes the installation of the small grip 308. At this time, hold the small grip 308 horizontally and rotate it. After the small grip 308 rotates, it will cause the sleeve 304 and the connecting rod 305 to rotate, which will then cause the insert rod 306 to rotate, thereby causing the clamping plate 202 to rotate and compress the arc spring 209 for exercise.
[0055] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. Portable comprehensive training device for small arms, comprising two mounting mechanisms (1), characterized in that: A training mechanism (2) is provided between the two installation mechanisms (1). A grip mechanism (3) is provided on both sides of the training mechanism (2). The installation mechanism (1) is used to provide the installation position. The rotation of the grip mechanism (3) can drive the training mechanism (2) to operate for forearm exercise.
2. The portable arm comprehensive trainer according to claim 1, characterized in that: The mounting mechanism (1) includes a G-frame (101), one side of which is threaded with a bolt (102), and the inner side of the bolt (102) is rotatably connected with a rotating circular plate (103). The outer side of the G-frame (101) away from the bolt (102) is threaded with a positioning screw (104), and the side of the G-frame (101) away from the rotating circular plate (103) is fixedly connected with a mounting column (105). A spring clip (106) is provided on the outer side of the mounting column (105).
3. The portable arm comprehensive trainer according to claim 1, characterized in that: The training mechanism (2) includes a mounting shell (201), with multiple clamping plates (202) rotatably connected inside the mounting shell (201). The clamping plates (202) have insertion holes (203) inside and notches (204) in the middle. Two pulleys (205) are rotatably connected to the outside of the clamping plates (202). Sliding grooves (206) are provided on both sides inside the mounting shell (201). Multiple partitions (207) are fixedly connected inside the mounting shell (201). Iron rings (208) are fixedly connected between the multiple partitions (207). Multiple arc springs (209) are sleeved on the outside of the iron rings (208). Multiple sliding grooves (210) are provided on both sides of the mounting shell (201). Two mounting plates (211) are fixedly connected to the outside of the mounting shell (201).
4. The portable arm comprehensive trainer according to claim 3, characterized in that: The grip mechanism (3) includes a central rod (301), two limiting posts (302) are fixedly connected to the side of the central rod (301) near the training mechanism (2), a base (303) is sleeved on the outside of the central rod (301), a sleeve (304) is sleeved on the outside of the central rod (301), a connecting rod (305) is fixedly connected to the outside of the sleeve (304), an insert rod (306) is slidably connected to the side of the connecting rod (305) near the training mechanism (2), and two fixing posts (307) are fixedly connected to the outside of the sleeve (304). The fixed post (307) is fitted with a small handle (308) on the side away from the training mechanism (2). The mounting shell (201) has threaded grooves (309) in the middle of both sides. The mounting shell (201) has limit grooves (310) in the middle of both sides. The limit post (302) is located inside the limit groove (310). The base (303) is internally threaded to the outer side of the middle of the threaded groove (309). The insertion rod (306) is located inside the insertion hole (203).
5. The portable arm comprehensive trainer according to claim 3, characterized in that: One end of each of the multiple arc springs (209) is fixedly connected to one side of a multiple clamping plate (202), and the other end of each of the multiple arc springs (209) is fixedly connected to the other side of the multiple clamping plate (202).
6. The portable forearm comprehensive trainer according to claim 3, characterized in that: The pulley (205) is disposed inside the sliding groove (206), and the outside of the iron ring (208) is slidably connected to the inside of the notch (204).
7. The portable forearm comprehensive trainer according to claim 4, characterized in that: The two fixed posts (307) are both engaged with the inside of the small grip (308) near the training mechanism (2), and the inner side of the sleeve (304) is provided with a bearing.
8. The portable arm-combined trainer according to claim 2, characterized by: Anti-slip pads are provided on the inner side of the rotating circular plate (103) and the inner side of the G-type frame (101), and a door (4) is provided between the inner side of the rotating circular plate (103) and the inner side of the G-type frame (101).