Multifunctional forearm rotation training equipment

Abstract

The present invention relates to the technical field of limb rehabilitation equipment, specifically a multifunctional forearm rotation training equipment, including a rotating arm portion vertically facing the upper body and a support portion that switches between a folded and unfolded state inside and outside the rotating arm portion; the rotating arm portion includes a rotating cylinder, a rotating rod that is rotatably connected to the side wall of the rotating cylinder and forms an angle change with its axial direction, a gripping group sleeved on the end of the rotating rod, and a supporting tube coaxially connected to the rotating cylinder. The present invention uses a pair of main support rods and a pair of secondary support rods to pull out the rotating arm portion to form a height-adjustable support state, and then drives the rotating rod to make a circular motion around the supporting tube by grasping the gripping group to train the forearm; in addition, grasping the gripping group to expand the angle between the rotating rod and the central axis of the rotating cylinder to obtain a gradually increasing front wall rotation range; and strength training can be obtained by using the rebound force of the spring on the rotating rod. This equipment saves space, is easy to carry and use, and meets the training of multiple functions of the forearm.

Description

Technical Field

[0001] The invention relates to the technical field of limb rehabilitation equipment, in particular to multifunctional forearm rotation training equipment. Background Art

[0002] Forearm rotation training combines functional activity training, muscle strengthening exercises, neuromuscular facilitation techniques and other means. This training method can not only improve the muscle strength and flexibility of the forearm, but also improve the function and stability of the entire upper limb. When performing forearm rotation training, you should choose the appropriate training method and intensity according to your personal situation, and follow the principle of gradual progress to avoid overwork and aggravation of injuries. Forearm rotation training is an important rehabilitation and fitness method. It mainly exercises the muscle strength of the forearm through movements such as flexion and extension, rotation, backward bending, and forward bending of the elbow joint, thereby improving the range of motion of the upper limbs and enhancing the control ability of the upper limbs. In order to meet the completion of various forearm training movements and facilitate the change of scenes for regular training, the forearm rotation training equipment that meets the above multi-functional training is designed. Summary of the invention

[0003] In order to overcome the defects in the prior art, the purpose of the present invention is to provide a multifunctional forearm rotation training equipment to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides a multifunctional forearm rotation training equipment, comprising a rotating arm portion vertically facing the upper body and a supporting portion that switches between a folded state and an unfolded state inside and outside the rotating arm portion; the rotating arm portion comprises a rotating cylinder, a rotating rod that is rotatably connected to the side wall of the rotating cylinder and forms an angle with the axial direction thereof, a gripping group sleeved on the end of the rotating rod, and a supporting cylinder coaxially connected to the rotating cylinder; a pair of spring plates and a spring therebetween are sleeved inside the rotating cylinder, a pressure rod is obliquely provided at the rotating connection end of the rotating rod, and the angle thereof is greater than 90 degrees, and the pressure rod contacts the spring plate located at the outer end of the rotating cylinder; a square groove that runs through the rear end of the supporting cylinder is provided on the central axis of the supporting cylinder;

[0005] The support part is integrally matched with the square groove sleeve, and the support part includes a support block slidably sleeved with the square groove, a pair of main support rods rotatably connected to the support block toward the outer end, and a fixed rod group rotatably connected to the ends of the pair of main support rods; a support rod for resisting the main support rod is embedded in the rear end of the support tube, and the fixed rod group includes a pair of secondary support rods hinged and clamped with the ends of the two main support rods, a hinge block rotatably connected to the upper ends of the pair of secondary support rods, and a fixed rod block embedded in the upper ends of the secondary support rods and limitedly clamped with the hinge block, and a folding spring is provided at the inner end of the fixed rod block;

[0006] A pair of unfolded main support rods are slidably connected with support plates at their bottoms.

[0007] As a further improvement of the present technical solution, a rotating hole is provided at the front end of the support tube, a socket connected to the rotating hole is provided on the front end side wall of the support tube, a rotating sleeve is coaxially provided at the rear end of the rotating tube, the rotating sleeve is matched with the rotating hole and rotates, a pin is inserted in the socket and the inner end of the pin extends into an annular groove provided on the outer side of the rotating sleeve.

[0008] As a further improvement of the technical solution, the front outer side surface of the rotating cylinder is provided with a clamp ring engaged with the rotating rod, and the opening of the clamp ring is provided with a through groove connected with the inside of the rotating cylinder, and the through groove is slidably engaged with the pressure rod.

[0009] As a further improvement of the present technical solution, the gripping group includes a ring-shaped fixing sleeve and a gripping sleeve that is adaptably connected and rotated with the fixing sleeve; the front side walls of the rotating rod are provided with card slots, and the bottom of the fixing sleeve is symmetrically provided with card blocks corresponding to the two card slots.

[0010] As a further improvement of the technical solution, an annular groove is provided on the outer side of the grip sleeve, and a through hole is provided in the middle of the outer side of the fixing sleeve. A pin is inserted into the through hole and the pin is slidably engaged with the annular groove.

[0011] As a further improvement of the present technical solution, the front end of the square groove is connected to the rotating hole, and the circumscribed circle diameter of the square groove is smaller than the diameter of the rotating hole, limiting grooves are provided on both side walls of the square groove, and the limiting grooves do not pass through the rear end of the support tube, and convex ribs are provided on both sides of the support block for clamping with the limiting grooves.

[0012] As a further improvement of the present technical solution, a groove is provided at the rear end of the support tube and below the square groove, and the push rod is inserted and slidably connected to the groove; a boss is provided on the outer side of the support tube and on both lateral sides of the groove, and a slide groove connected to the groove is provided on the side of the boss; a screw is inserted into the side wall of one end of the push rod placed in the groove, and both ends of the screw extend out of the boss and are threadedly connected to the nut.

[0013] As a further improvement of the present technical solution, the thickness of the main support rod is the same as half of the thickness of the support block, a ring is provided on one half side of one end of the main support rod, and the ring and the support block are rotatably connected through a rotating shaft; a rod groove is opened in the middle of the main support rod and passes through the other end thereof, and the secondary support rod is adapted to be clamped in the rod groove.

[0014] As a further improvement of the technical solution, convex rings are symmetrically provided on both sides of one end of the secondary support rod, a flat groove is opened in the middle of one end of the secondary support rod, the hinge block is a rounded rectangular parallelepiped structure, and the spacing between the central axes of the circles at both ends is equal to the thickness of the secondary support rod, and the two ends of the hinge block are rotatably connected with two pairs of convex rings; a number of conical grooves are evenly spaced on the arc surfaces at both ends of the hinge block, one end of the fixed rod block is plugged into the flat groove, and the other end is correspondingly plugged into the conical groove; the side wall of the secondary support rod is opened with a waist-shaped hole connected to the inner end of the flat groove, and the inner end side wall of the fixed rod block is plugged with a short shaft, and the two ends of the short shaft are plugged into the waist-shaped hole and protrude.

[0015] As a further improvement of the technical solution, the support plate is formed by a pair of flat plates which are wide in front and narrow in the back and are hinged together. A plurality of grooves are provided on the top surface of the flat plate. A splint is provided on the top surface of the flat plate near the hinge. A clamping strip is provided on the inner side of the top surface of the splint. A positioning groove is provided on the outer side surface of the main support rod facing the outer end. The positioning groove is clamped with the clamping strip, and the top surface of the positioning groove is arranged with an inclined opening. The inclined openings of the two positioning grooves of a pair of main support rods are arranged to be intersecting and pointed.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The multifunctional forearm rotation training equipment, through the combined structure of the rotating arm part and the supporting part, utilizes a pair of main support rods and a pair of auxiliary support rods to pull out the rotating arm part to jointly form a support state with height adjustment, and then drives the rotating rod to make a circular motion around the supporting tube by grasping the gripping group to train the forearm; in addition, grasping the gripping group to expand the angle between the rotating rod and the central axis of the rotating tube to obtain a gradually increasing front wall rotation range; and can obtain strength training with the help of the rebound force of the spring on the rotating rod, so that the front wall can be adjusted in rotation direction, range and strength, and then the front wall obtains multifunctional forearm training of flexion and extension, rotation and backward leaning. This equipment saves space, is easy to carry and use, and meets the training requirements of multiple functions of the forearm.

[0018] 2. The multifunctional forearm rotation training equipment, through the provided grip group, grasps the grip bar to drive the fixed sleeve and the rotating rod to rotate. At the same time, when the rotating rod makes a circular motion and the fixed sleeve is in different positions, the grip sleeve can always remain in a grasped state because it can rotate, avoiding wrist twisting, so that the forearm only makes a circular motion without twisting, that is, it is convenient for the forearm to rotate comfortably with the elbow joint as the center of the circle, which is in line with the design of arm movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the various components in the figures are only schematic, used to help understand the present invention, and are not specifically limited to the shapes and proportional dimensions of the various components of the present invention. Those skilled in the art can select various possible shapes and proportional dimensions to implement the present invention according to the teachings of the present invention.

[0020] Figure 1 It is a schematic diagram of the assembly structure of the present invention in an overall unfolded state.

[0021] Figure 2 For the present invention Figure 1 main view.

[0022] Figure 3 It is a front view of the rotating arm portion of the present invention in an expanded state.

[0023] Figure 4 It is a schematic diagram of the assembly structure of the support part of the present invention in an unfolded state.

[0024] Figure 5 It is a partial exploded view of the rotating arm part of the present invention.

[0025] Figure 6 The figure is a disassembled diagram of the rotating rod and the grip assembly of the present invention.

[0026] Figure 7 It is a disassembled diagram of the rotating drum assembly of the present invention.

[0027] Figure 8 It is a schematic diagram of the support part and the bracket assembly structure of the present invention.

[0028] Fig. 9 It is a schematic diagram of the assembly structure of the support part of the present invention in a folded state.

[0029] Fig.10 This is a disassembled view of the main support rod and support block assembly of the present invention.

[0030] Fig.11 It is an assembly and disassembly diagram of the fixed rod group of the present invention.

[0031] Fig.12 It is a schematic diagram of the support plate assembly structure of the present invention.

[0032] The meaning of each number in the figure is:

[0033] 100, rotating arm; 110, rotating cylinder; 1101, rotating sleeve; 1102, clamping ring; 1103, through groove; 111, spring plate; 112, spring; 113, cover; 120, rotating rod; 121, pressing rod; 122, card slot; 130, holding group; 131, fixing sleeve; 1311, card block; 1312, perforation; 132, holding sleeve; 1321, ring groove; 140, supporting cylinder; 141, rotating hole; 1411, plug hole; 142, square groove; 1421, limit groove; 143, groove; 1 431, slide groove; 144, boss; 150, push rod; 200, support part; 210, main support rod; 211, collar; 212, rod groove; 213, positioning groove; 220, fixed rod group; 221, auxiliary support rod; 2211, convex ring; 2212, flat groove; 2213, waist-shaped hole; 222, hinge block; 2221, conical groove; 223, fixed rod block; 224, folding spring sheet; 230, support block; 231, convex rib; 300, support plate; 301, belt groove; 310, splint; 311, clamping strip. DETAILED DESCRIPTION

[0034] The details of the present invention can be more clearly understood by combining the accompanying drawings with the description of the specific embodiments of the present invention. However, the specific embodiments of the present invention described herein are only used for the purpose of explaining the present invention and cannot be understood as limiting the present invention in any way. Under the guidance of the present invention, technicians can conceive of any possible variations based on the present invention, which should be regarded as falling within the scope of the present invention. The terms "installation" and "connection" should be understood in a broad sense, which can be directly connected or indirectly connected through an intermediate medium.

[0035] The terms "central axis", "vertical", "horizontal", "front", "back", "up", "down", "left", "right", "top", "bottom", "inside", "outside" and the like used herein to indicate positions or positional relationships are based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, in the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0036] See also Figure 1-Figure 12As shown, the present invention provides a multifunctional forearm rotation training equipment, comprising a rotating arm part 100 which is vertically facing the upper body, and a supporting part 200 which can switch between the folded and unfolded states inside and outside the rotating arm part 100; that is, when the supporting part 200 is hidden inside the rotating arm part 100, it is in an integral storage state, which is convenient for carrying and placing; the supporting part 200 is pulled out of the rotating arm part 100 and unfolded to form a supporting use state; the rotating arm part 100 comprises a rotating cylinder 110, a rotating rod 120 which is rotatably connected to the side wall of the rotating cylinder 110 and forms a variable angle with the axial direction thereof, a gripping group 130 sleeved on the end of the rotating rod 120, and a bracket 140 which is coaxially connected to the rotating cylinder 110; the rotating rod 120 is driven to make a circular motion around the bracket 140 by grasping the gripping group 130, so as to train the forearm; in addition, the angle between the rotating rod 120 and the central axis of the rotating cylinder 110 is expanded by grasping the gripping group 130, so as to obtain a gradually increasing front wall rotation range;

[0037] A pair of spring plates 111 and a spring 112 therebetween are sleeved inside the rotating cylinder 110. A pressure rod 121 is tilted at the rotating connection end of the rotating rod 120, and the included angle is greater than 90 degrees. The pressure rod 121 contacts the spring plate 111 located at the outer end of the rotating cylinder 110, so that the pressure rod 121 fits the surface of the supporting cylinder 140 in a normal state without occupying space. When the pressure rod 121 is unfolded to obtain a rotation range, the spring 112 can be used to rebound the rotating rod 120 to train strength, so that the forearm can be adjusted in rotation direction, range and strength, and the front wall can obtain multifunctional forearm training of flexion, extension, rotation and backward leaning.

[0038] Furthermore, a square groove 142 is provided on the central axis of the support tube 140 and passes through the rear end thereof; the support part 200 is sleeved with the square groove 142 as a whole so as to be hidden and stored; the support part 200 includes a support block 230 which is slidably sleeved with the square groove 142, a pair of main support rods 210 which are rotatably connected to the support block 230 toward the outer end, and a fixed rod group 220 which is rotatably connected to the ends of the pair of main support rods 210; by bringing the pair of main support rods 210 together and setting them straight with the support block 230, and at the same time folding the fixed rod group 220 between the pair of main support rods 210, the whole can be directly inserted into the square groove 142;

[0039] A supporting rod 150 for supporting the main support rod 210 is embedded inside the rear end of the support tube 140. The main support rod 210 is pulled out from the square groove 142 and rotated 90 degrees with the support block 230 to form an "eight" shape to form a supporting state; at this time, the supporting rod 150 is used to support the side wall of one of the main support rods 210 to prevent the support tube 140 from tipping over.

[0040] Specifically, the fixed rod group 220 includes a pair of secondary struts 221 hinged and clamped with the ends of the two main struts 210, a hinge block 222 rotatably connected to the upper ends of the pair of secondary struts 221, and a fixed rod block 223 embedded in the upper ends of the secondary struts 221 and limitedly clamped with the hinge block 222; first, the pair of main struts 210 are unfolded to form an eight-shaped support, and then the pair of secondary struts 221 are unfolded to form an eight-shaped support, and the fixed rod block 223 is used to limit the clamping connection with the hinge block 222 to stabilize the angle, so that the pair of main struts 210 are stably supported; that is, the angle of the pair of main struts 210 is adjusted by adjusting the angle of the pair of secondary struts 221, and then the height of the bracket 140 is adjusted to adapt to the forearm grasping rotation training;

[0041] A folding spring sheet 224 is provided at the inner end of the fixed rod block 223, that is, the fixed rod block 223 is automatically connected with the hinge block 222 through the rebound force of the folding spring sheet 224; a pair of unfolded main support rods 210 are slidably connected with a support plate 300 at the bottom, which is used to expand the support area of ​​the support part 200 to prevent tipping.

[0042] Specifically, a rotating hole 141 is provided at the front end of the support tube 140, and a plug hole 1411 connected to the rotating hole 141 is provided on the front side wall of the support tube 140. A rotating sleeve 1101 is coaxially provided at the rear end of the rotating cylinder 110. The rotating sleeve 1101 is matched and rotated with the rotating hole 141, that is, the rotating cylinder 110 is supported by the support tube 140 for rotation; a pin is inserted into the plug hole 1411, and the inner end of the pin extends into the annular groove provided on the outer side of the rotating sleeve 1101, so that the rotating cylinder 110 does not slip off the support tube 140 when rotating;

[0043] A clamp ring 1102 is provided on the outer side surface of the front end of the rotating cylinder 110 and is clamped with the rotating rod 120. The clamp ring 1102 is an open ring, and a through groove 1103 connected to the inside of the rotating cylinder 110 is provided at the opening of the clamp ring 1102. The through groove 1103 is slidably clamped with the pressure rod 121, so that the rotating rod 120 can move freely; the front end of the rotating cylinder 110 is tightly clamped with a sealing cover 113, which plays a protective and aesthetic role.

[0044] Specifically, the gripping assembly 130 includes a ring-shaped fixing sleeve 131 and a gripping sleeve 132 that is adapted to fit and rotate with the fixing sleeve 131; the front side walls of the rotating rod 120 are provided with card slots 122, and the bottom of the fixing sleeve 131 is symmetrically provided with card blocks 1311 that are correspondingly engaged with the two card slots 122, so that the gripping assembly 130 and the rotating rod 120 can be quickly assembled and disassembled for use;

[0045] A ring groove 1321 is provided on the outer side surface of the grip sleeve 132, and a through hole 1312 is provided in the middle of the outer side surface of the fixed sleeve 131. A pin is inserted into the through hole 1312 and the pin is engaged and slid with the ring groove 1321, so that the grip sleeve 132 can rotate in the fixed sleeve 131 without slipping, and a grip rod is engaged between the inner walls of the grip sleeve 132, so that the grip rod can be grasped to drive the fixed sleeve 131 and the rotating rod 120 to rotate. At the same time, when the rotating rod 120 makes a circular motion and the fixed sleeve 131 is in different positions, the grip sleeve 132 can always remain in a grasped state due to its ability to rotate, thereby avoiding twisting of the wrist, so that the forearm only makes a circular motion without twisting, which is in line with the design of arm movement.

[0046] Furthermore, the front end of the square groove 142 is connected to the rotating hole 141, and the diameter of the circumscribed circle of the square groove 142 is smaller than the diameter of the rotating hole 141, so that the support part 200 can be inserted into the square groove 142 from the rotating hole 141; the two side walls of the square groove 142 are provided with limiting grooves 1421, and the limiting grooves 1421 do not penetrate the rear end of the support tube 140, thereby forming a limiting structure, and the two sides of the support block 230 are provided with convex ribs 231 that are engaged with the limiting grooves 1421, that is, when the support block 230 slides to the rear end of the support tube 140, the convex ribs 231 are limited by the square groove 142 to prevent the support block 230 from slipping, and at this time, a pair of main support rods 210 can be turned down to form support.

[0047] Furthermore, a groove 143 is provided at the rear end of the support tube 140 and below the square groove 142, and the push rod 150 is inserted and slidably connected with the groove 143 so that the push rod 150 can be stored, hidden and extended for support; a boss 144 is provided on the outer side of the support tube 140 and on both lateral sides of the groove 143, and a slide groove 1431 connected to the groove 143 is provided on the side of the boss 144; a screw is inserted into the side wall of one end of the push rod 150 placed in the groove 143, and both ends of the screw extend out of the boss 144 and are threadedly connected to nuts, and the position of the push rod 150 is positioned by tightening the nuts at both ends to press on the side of the boss 144, so as to adapt to the main support rods 210 with different expansion angles to form a limited state of the support tube 140, ensuring that the rotating tube 110 points to the upper torso to cooperate with the forearm rotation training.

[0048] Furthermore, the thickness of the main support rod 210 is the same as half of the thickness of the support block 230, and a ring 211 is provided on one half side of one end of the main support rod 210, and the ring 211 is rotatably connected to the support block 230 through a rotating shaft; so that a pair of main support rods 210 can be inserted into the square groove 142 after being put together; a rod groove 212 is opened in the middle of the main support rod 210 and runs through the other end thereof, and the secondary support rod 221 is adapted to be snap-fitted with the rod groove 212, so that the secondary support rod 221 is hidden and stored and inserted into the square groove 142 along with the main support rod 210.

[0049] Specifically, convex rings 2211 are symmetrically provided on both sides of one end of the secondary support rod 221, a flat groove 2212 is provided in the middle of one end of the secondary support rod 221, the hinge block 222 is a rounded rectangular parallelepiped structure, and the distance between the central axes of the two ends thereof is equal to the thickness of the secondary support rod 221, and the two ends of the hinge block 222 are rotatably connected with the two pairs of convex rings 2211, so that a pair of secondary support rods 221 are close together without interference;

[0050] A plurality of tapered grooves 2221 are provided at equal intervals on the arc surfaces at both ends of the hinge block 222. One end of the fixed rod block 223 is plugged into the flat groove 2212, and the other end thereof is correspondingly plugged into the tapered groove 2221. The fixed rod block 223 is plugged into the tapered grooves 2221 at different positions to match the different angles of a pair of secondary support rods 221 for positioning; a waist-shaped hole 2213 connected to the inner end of the flat groove 2212 is provided on the side wall of the secondary support rod 221, a short shaft is plugged into the inner end side wall of the fixed rod block 223, and the two ends of the short shaft are plugged into the waist-shaped hole 2213 and protruded; the angle of the secondary support rod 221 can be adjusted by pinching the exposed two ends of the short shaft and squeezing the fixed rod block 223 back into the flat groove 2212, and the operation is convenient and reliable; It should be noted that when a pair of secondary struts 221 are parallel and attached, the side of the fixed rod block 223 pointing to the hinge block 222 is not provided with a tapered groove 2221, so that when a pair of main struts 210 are unfolded, the pair of secondary struts 221 are automatically unfolded to expose the short axis, and then the short axis is operated to adjust the angle limit.

[0051] Specifically, the support plate 300 is formed by hingedly connecting a pair of flat plates which are wide at the front and narrow at the back, and the wide end of the flat plate is located below the support tube 140 to form a large-area support effect; a plurality of belt grooves 301 are provided on the top surface of the flat plate, elastic belts are fastened in the belt grooves 301, and Velcro is sewn at the ends of the elastic belts, so that each pair of elastic belts can be tied around a fixed structure, such as the sides of the bed, the bed rails, the seat, etc., so that the training equipment can be carried and used in different scenarios;

[0052] A splint 310 is provided on the top surface of the flat plate near the hinge, a clamping strip 311 is provided on the inner side of the top surface of the splint 310, a positioning groove 213 is provided on the outer side surface of the main support rod 210 facing the outer end, the positioning groove 213 is clamped with the clamping strip 311, and the top surface of the positioning groove 213 is arranged with an inclined opening, and the inclined openings of the two positioning grooves 213 of a pair of main support rods 210 are arranged in an intersecting direction, so as to limit the main support rod 210, and the structure of the positioning groove 213 can make the main support rod 210 expand and slide to adjust the support angle; in addition, the main support rod 210 and the pair of splints 310 are in a sliding tight fit so as to be stable and not slide when the forearm rotates.

[0053] When the multifunctional forearm rotation training equipment of the present invention is used, the elastic band on the support plate 300 is first tied to the bed or between the bed rails, and then the support part 200 is pulled out from the bracket 140 until the support block 230 slides to the rear end limit of the bracket 140, and then the pair of main support rods 210 are turned down and spread out at an angle of eight, and the height of the bracket 140 is adjusted to be suitable for the rotation of the forearm; during this period, the fixed rod block 223 is driven to disengage from the tapered groove 2221 by pressing down the short shaft, and the angle of the pair of secondary support rods 221 is arbitrarily adjusted, and the short shaft is loosened, and the fixed rod block 223 automatically pops out and engages with the tapered groove 2221 close to its position, thereby stabilizing the angle of the pair of main support rods 210;

[0054] Then, by grasping the gripping group 130, the rotating rod 120 is driven to make a circular motion around the supporting tube 140, so as to train the forearm; in addition, by grasping the gripping group 130, the angle between the rotating rod 120 and the central axis of the rotating tube 110 is expanded to obtain a gradually increasing front wall rotation range; and the strength can be trained with the help of the rebound force of the spring 112 on the rotating rod 120, so that the forearm can be adjusted in terms of rotation direction, range and strength, thereby obtaining multifunctional forearm training of flexion and extension, rotation and backward movement of the front wall.

[0055] It should be noted that the above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A multifunctional forearm rotation training equipment, characterized in that: The invention comprises a rotating arm portion (100) which is vertically oriented toward the upper body, and a supporting portion (200) which switches between a folded state and an unfolded state inside and outside the rotating arm portion (100). The rotating arm portion (100) comprises a rotating cylinder (110), a rotating rod (120) which is rotatably connected to the side wall of the rotating cylinder (110) and has an angle varying with the axial direction thereof, a gripping group (130) which is sleeved on the end of the rotating rod (120), and a supporting cylinder (140) which is coaxially connected to the rotating cylinder (110). A pair of spring plates (111) and a spring (112) therebetween are sleeved inside the rotating cylinder (110). A pressing rod (121) is obliquely provided at the rotating connection end of the rotating rod (120), and the angle thereof is greater than 90 degrees. The pressing rod (121) contacts the spring plate (111) located at the outer end of the rotating cylinder (110). A square groove (142) which passes through the rear end of the supporting cylinder (140) is provided on the central axis of the supporting cylinder (140). The support portion (200) is integrally sleeved with the square groove (142), and the support portion (200) comprises a support block (230) slidably sleeved with the square groove (142), a pair of main support rods (210) rotatably connected to the support block (230) toward the outer end, and a fixed rod group (220) rotatably connected to the ends of the pair of main support rods (210); a support rod (150) for resisting the main support rods (210) is embedded inside the rear end of the support tube (140), and the fixed rod group (220) comprises a pair of secondary support rods (221) hingedly and clamped to the ends of the two main support rods (210), a hinge block (222) rotatably connected to the upper ends of the pair of secondary support rods (221), and a fixed rod block (223) embedded in the upper ends of the secondary support rods (221) and limitedly clamped to the hinge block (222), and a folding spring sheet (224) is provided at the inner end of the fixed rod block (223); A support plate (300) is slidably engaged at the bottom of a pair of unfolded main support rods (210).

2. The multifunctional forearm rotation training equipment according to claim 1, characterized in that: The front end of the support cylinder (140) is provided with a rotating hole (141), the front end side wall of the support cylinder (140) is provided with an insertion hole (1411) connected to the rotating hole (141), the rear end of the rotating cylinder (110) is coaxially provided with a rotating sleeve (1101), the rotating sleeve (1101) is adapted to be matched with the rotating hole (141) and rotate, a pin is inserted into the insertion hole (1411), and the inner end of the pin extends into an annular groove provided on the outer side of the rotating sleeve (1101).

3. The multifunctional forearm rotation training equipment according to claim 2, characterized in that: The front outer side surface of the rotating cylinder (110) is provided with a clamping ring (1102) which is clamped with the rotating rod (120); the opening of the clamping ring (1102) is provided with a through groove (1103) which is connected with the inside of the rotating cylinder (110); the through groove (1103) is slidably clamped with the pressing rod (121).

4. The multifunctional forearm rotation training equipment according to claim 3, characterized in that: The gripping assembly (130) comprises a ring-shaped fixing sleeve (131) and a gripping sleeve (132) adapted to fit and rotate with the fixing sleeve (131); the front side walls of the rotating rod (120) are provided with clamping grooves (122), and the bottom of the fixing sleeve (131) is symmetrically provided with clamping blocks (1311) corresponding to the two clamping grooves (122).

5. The multifunctional forearm rotation training equipment according to claim 4, characterized in that: An annular groove (1321) is provided on the outer side surface of the grip sleeve (132), a through hole (1312) is provided in the middle of the outer side surface of the fixing sleeve (131), a pin is inserted into the through hole (1312), and the pin is slidably engaged with the annular groove (1321).

6. The multifunctional forearm rotation training equipment according to claim 5, characterized in that: The front end of the square groove (142) is connected to the rotating hole (141), and the diameter of the circumscribed circle of the square groove (142) is smaller than the diameter of the rotating hole (141). The two side walls of the square groove (142) are provided with limiting grooves (1421), and the limiting grooves (1421) do not penetrate the rear end of the support tube (140). Both sides of the support block (230) are provided with convex ribs (231) that are engaged with the limiting grooves (1421).

7. The multifunctional forearm rotation training equipment according to claim 6, characterized in that: A groove (143) is provided at the rear end of the support tube (140) and below the square groove (142), and the push rod (150) is plugged and slidably connected with the groove (143); a boss (144) is provided on the outer side of the support tube (140) and on both lateral sides of the groove (143), and a sliding groove (1431) connected to the groove (143) is provided on the side of the boss (144); a screw is plugged into the side wall of one end of the push rod (150) placed in the groove (143), and both ends of the screw extend out of the boss (144) and are threadedly connected to a nut.

8. The multifunctional forearm rotation training equipment according to claim 7, characterized in that: The thickness of the main support rod (210) is the same as half the thickness of the support block (230); a collar (211) is provided on one half side of one end of the main support rod (210); and the collar (211) and the support block (230) are rotatably connected via a rotating shaft; a rod groove (212) is provided in the middle of the main support rod (210) and extends to the other end thereof; and the secondary support rod (221) is adapted to be snap-fitted into the rod groove (212).

9. The multifunctional forearm rotation training equipment according to claim 8, characterized in that: One end of the secondary support rod (221) is symmetrically provided with convex rings (2211) on both sides, and a flat groove (2212) is provided in the middle of one end of the secondary support rod (221). The hinge block (222) is a rounded rectangular parallelepiped structure, and the distance between the central axes of the two ends is equal to the thickness of the secondary support rod (221). The two ends of the hinge block (222) are rotatably connected to the two pairs of convex rings (2211); the arc surfaces at the two ends of the hinge block (222) are equal. A plurality of tapered grooves (2221) are provided at intervals, one end of the fixed rod block (223) is plugged into the flat groove (2212), and the other end thereof is correspondingly plugged into the tapered groove (2221); a waist-shaped hole (2213) communicating with the inner end of the flat groove (2212) is provided on the side wall of the secondary support rod (221), a short shaft is plugged into the inner end side wall of the fixed rod block (223), and both ends of the short shaft are plugged into the waist-shaped hole (2213) and protrude therefrom.

10. The multifunctional forearm rotation training equipment according to claim 9, characterized in that: The support plate (300) is hingedly formed by a pair of flat plates that are wider in front and narrower in the back, the top surface of the flat plate is provided with a plurality of grooves (301), a clamping plate (310) is provided on the top surface of the flat plate near the hinge, a clamping strip (311) is provided on the inner side of the top surface of the clamping plate (310), a positioning groove (213) is provided on the outer side surface of the main support rod (210) facing the outer end, the positioning groove (213) is clamped with the clamping strip (311), and the top surface of the positioning groove (213) is arranged with an inclined opening, and the inclined openings of the two positioning grooves (213) of the pair of main support rods (210) are arranged to intersect and point.

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