Double-column tension device for fitness

Abstract

The invention discloses a double-column tension device for fitness, which relates to the technical field of fitness equipment and comprises a support frame, supports arranged on two sides of the upper end face of the support frame, a plurality of groups of reinforcing rods arranged between the supports on two sides, a movable arm frame arranged on the supports, a connecting frame arranged on a movable arm and a telescopic rod I arranged on the connecting frame. The extension ends of the first telescopic rods on the two sides are provided with circular plates, the circular plates on the two sides are internally provided with linkage rods, the two sides of the linkage rods are provided with first balancing weights, the linkage rods are provided with second telescopic rods, a supporting plate is arranged in the supporting frame, and the supporting plate is provided with an energy storage mechanism. When a user moves in the reverse direction, the energy storage piece and the spring release potential energy, the moving piece is driven to provide assistance for the first balancing weight on the linkage rod, a resistance-assistance alternating mode is formed, the energy utilization efficiency is improved, and the exercise assisting effect is achieved for user fitness.

Description

Technical Field

[0001] The present invention relates to the technical field of fitness equipment, and more specifically, to a double-column pulling device for fitness. Background Art

[0002] In the field of traditional fitness equipment, the counterweight resistance system has long occupied a dominant position. Its core principle is to use the pulling or pushing force applied by the user to drive the steel wire rope to pull the counterweight up and down vertically, and use the gravity of the counterweight to provide adjustable resistance. Although the system has a simple structure and low cost, it has two significant defects in actual application: low utilization of gravitational potential energy and insufficient dynamic stability. These problems not only reduce training efficiency, but also affect user experience and equipment life, becoming a key bottleneck restricting the technological upgrading of fitness equipment.

[0003] The traditional counterweight system follows the "one-way energy consumption" mode: the user does work to overcome the gravity of the counterweight to complete the centripetal contraction, and the mechanical efficiency is about 30% to 40% at this time; and when the counterweight is reset and falls, its gravitational potential energy is almost completely converted into invalid energy such as heat energy and sound energy through pulley friction, air resistance and limit collision. Studies have shown that in a single standard training action, about 60% to 70% of the gravitational potential energy is not recycled. Taking the double-column puller as an example, when a single set of 50 kg counterweight falls within a 2-meter stroke, about 980 joules of energy are lost each time, and the energy utilization rate is low. For this reason, the device proposes a double-column pulling device for fitness. Summary of the invention

[0004] In view of the shortcomings of the prior art, the object of the present invention is to provide a double-column pulling device for fitness.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: comprising a support frame, brackets are arranged on both sides of the upper end surface of the support frame, a plurality of groups of reinforcing rods are arranged between the brackets on both sides, a boom frame is arranged on the bracket, a connecting frame is arranged on the boom, a telescopic rod 1 is arranged on the connecting frame, circular plates are arranged at the protruding ends of the telescopic rod 1 on both sides, linkage rods are arranged in the circular plates on both sides, counterweight blocks 1 are arranged on both sides of the linkage rod, a telescopic rod 2 is arranged on the reinforcing rod, the bottom end of the telescopic rod 2 is arranged on the linkage rod, and a A support plate, baffles are arranged on both sides of the upper end of the support plate, energy storage mechanisms are arranged in the baffles on both sides, the energy storage mechanism includes a sliding member arranged in the baffle, a moving member is arranged on the outer wall of the linkage rod, the moving member is arranged in the sliding member, an energy storage member is arranged in the baffle, the sliding member and the moving member cooperate to adjust the energy storage member, an adjusting member is also arranged in the bracket, and an auxiliary mechanism is also included, the auxiliary mechanism includes a supporting member arranged on the boom frame, a rotating member is arranged in the supporting member, and the supporting member and the rotating member cooperate to adjust the gripper position.

[0006] Preferably, the sliding member includes two groups of movable plates, and multiple groups of movable rods are arranged on the opposite sides of the movable plates on both sides, and a sliding plate is arranged at one end of the multiple groups of movable rods passing through the baffle, and auxiliary rods are arranged in the bracket and the baffle, and the sliding plate is arranged on the outer wall of the auxiliary rod, and compression springs are sleeved on the outer walls of the auxiliary rods on both sides, and one end of the compression spring is arranged on the outer wall of the movable plate.

[0007] Preferably, the movable part includes slots symmetrically arranged in the movable plate, movable plates are arranged in the slots on both sides, linkage plates are arranged at both ends of the movable plate, the linkage plates on both sides are correspondingly arranged on the linkage rod, a resistance plate is arranged at one end of the movable plate, and resistance surfaces are arranged on both sides of the resistance plate.

[0008] Preferably, the energy storage component includes an annular groove one symmetrically arranged in the baffle, a torsion spring is arranged in the annular groove one, an energy storage plate is arranged at one end of the torsion spring, a sleeve is arranged in the energy storage plate, a hollow hole is formed in the sleeve, one end of the linkage rod passing through the hollow hole is arranged in the baffle, a locking block is integrally formed on the inner wall of the hollow hole, an annular cylinder is arranged at one end of the sliding plate, an arc groove is arranged on the inner wall of the annular cylinder, and the locking block is correspondingly slidably connected in the arc groove.

[0009] Preferably, the adjusting member includes auxiliary blocks arranged on the auxiliary rods on both sides, one end of the compression spring is arranged on the outer wall of the auxiliary block, a limiting rod is symmetrically arranged at one end of the auxiliary block, the limiting rods on both sides pass through one end of the bracket and a limiting plate is arranged, a screw rod 1 is arranged in the limiting plate, and the screw rod 1 is correspondingly arranged in the bracket.

[0010] Preferably, the support member includes a fixed plate arranged at the end of the boom frame, a circular convex portion is integrally formed in the fixed plate, two annular grooves are provided in the fixed plate, a sliding block is provided in the two annular grooves, counterweight rods are respectively provided on the brackets on both sides, and two counterweight blocks are provided on the outer wall of the counterweight rods.

[0011] Preferably, the rotating part includes a movable column arranged at the bottom end of the fixed plate, the side wall of the movable column is provided with a connecting plate, the side wall of the connecting plate is provided with a limiting column, the limiting column is correspondingly arranged on the outer wall of the slider, a second screw is arranged in the circular convex part, the second screw is correspondingly arranged on the movable column, and a movable arm is arranged in the middle position of the connecting plate.

[0012] Preferably, it further comprises an adjusting mechanism, wherein the adjusting mechanism comprises a fixing piece arranged on the bracket, an auxiliary piece adapted to the human body is arranged inside the fixing piece, and an offset piece is arranged inside the fixing piece.

[0013] Preferably, the fixing part includes a combining plate arranged in the supporting frame, a vertical plate is arranged in the combining plate, a cushion is arranged in the vertical plate, a reinforcing plate is arranged on the upper end surface of the combining plate, and the auxiliary part includes a reinforcing seat arranged on the inner wall of the reinforcing plate, and limiting rollers are arranged on both sides of the reinforcing seat.

[0014] Preferably, the offset member includes a spherical groove arranged in the reinforcing plate, a spherical block is movably connected in the spherical groove, a screw rod three is arranged in the reinforcing plate, the screw rod three is correspondingly abutted in the spherical block, an auxiliary seat is arranged at one end of the spherical block, a cushion is arranged in the auxiliary seat, and telescopic rods three are arranged on both sides of the reinforcing plate, and the telescopic rods three on both sides are correspondingly arranged on the outer wall of the cushion.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In the present invention, by setting an energy storage mechanism, the gravitational potential energy when the counterweight block falls is utilized, so that the compression spring and the torsion spring store a certain amount of energy, which not only improves the stability of the device, but also improves the energy utilization rate. When the user applies external force, the energy storage mechanism integrates the potential energy storage of the energy storage member and the spring to form a dual energy storage mechanism, thereby improving the energy utilization efficiency.

[0017] 2. In the present invention, when the user moves in the opposite direction, the energy storage member and the spring release potential energy, driving the moving member to provide assistance to the counterweight block on the linkage rod, thereby forming an alternating "resistance-assistance" mode, improving energy utilization efficiency, and providing auxiliary exercise for the user's fitness.

[0018] 3. In the present invention, by setting up auxiliary mechanisms and adjustment mechanisms, the support member and the rotating member cooperate to adjust the grip position to be suitable for people with different physical conditions, and the strength of the device can also be adjusted accordingly as the exercise progresses to achieve better exercise effects.

[0019] 4. In the present invention, by adjusting the back cushion and the seat cushion in the vertical plate, the back cushion and the seat cushion can support the human body and assist the user in exercising the device, and can also be used to exercise the user's waist, abdomen and back muscles, which has a wider applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an overall structural diagram of a double-column pulling device for fitness proposed by the present invention;

[0021] Figure 2 This is a side structural schematic diagram of a double-column pulling device for fitness proposed by the present invention;

[0022] Figure 3 This is a partial structural schematic diagram of a double-column pulling device for fitness proposed by the present invention;

[0023] Figure 4 A schematic diagram of an energy storage mechanism of a double-column pulling device for fitness proposed by the present invention;

[0024] Figure 5 A schematic diagram of a sliding member and a moving member of a double-column tension device for fitness proposed by the present invention;

[0025] Figure 6 A schematic diagram of an energy storage component of a double-column tension device for fitness proposed by the present invention;

[0026] Figure 7 This is a schematic diagram of the internal structure of an energy storage component of a double-column tension device for fitness proposed by the present invention;

[0027] Figure 8 A schematic diagram of a sleeve and an annular cylinder of a double-column tension device for fitness proposed by the present invention;

[0028] Fig. 9 This is a schematic diagram of the auxiliary mechanism structure of a double-column pulling device for fitness proposed by the present invention;

[0029] Fig.10 A schematic diagram of an adjustment mechanism of a double-column tension device for fitness proposed by the present invention;

[0030] Fig.11 A double-column pulling device for fitness proposed by the present invention Fig.10 An enlarged schematic diagram of point A.

[0031] In the figure: 100, support frame; 101, bracket; 102, reinforcement rod; 103, boom frame; 104, connecting frame; 105, telescopic rod 1; 106, circular plate; 107, linkage rod; 108, counterweight block 1; 109, telescopic rod 2; 110, support plate; 111, baffle; 200, energy storage mechanism; 201, sliding member; 202, moving member; 203, energy storage member; 204, adjusting member; 300, auxiliary mechanism; 301, support member; 302, rotating member; 400, adjustment mechanism; 401, fixing member; 402, auxiliary member; 403, offset member; 201a, movable plate; 201b, movable rod; 201c, sliding plate; 201d, auxiliary rod; 201e, compression spring; 202a, slot; 202b, moving plate; 202c, linkage plate; 202d, contact plate; 202e, contact surface; 203a, annular groove 1; 20 3b, torsion spring; 203c, energy storage plate; 203d, sleeve; 203e, hollow hole; 203f, locking block; 203g, annular cylinder; 203h, arc groove; 204a, auxiliary block; 204b, limit rod; 204c, limit plate; 204d, screw rod 1; 301a, fixing plate; 301b, round convex part; 301c, annular groove 2; 301d, slider; 301e, counterweight rod; 301f, counterweight block 2; 3 02a, movable column; 302b, connecting plate; 302c, limiting column; 302d, screw rod two; 302e, movable arm; 401a, combining plate; 401b, vertical plate; 401c, cushion; 401d, reinforcing plate; 402a, reinforcing seat; 402b, limiting roller; 403a, spherical groove; 403b, spherical block; 403c, screw rod three; 403d, auxiliary seat; 403e, cushion; 403f, telescopic rod three. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0033] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0034] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0035] Embodiment 1 further describes a double-column tension device for fitness proposed by the present invention, including a support frame 100, brackets 101 are fixedly installed on both sides of the upper end surface of the support frame 100 by bolts, three groups of reinforcing rods 102 are fixedly connected between the brackets 101 on both sides, a movable arm frame 103 is rotatably connected to the bracket 101 through an axle seat, a connecting frame 104 is fixedly connected to the movable arm, a telescopic rod 105 is rotatably connected to the connecting frame 104, and a circular plate 106 is fixedly connected to the extended end of the telescopic rod 105 on both sides, and a linkage rod 107 is fixedly connected inside the circular plates 106 on both sides, and counterweight blocks 108 are detachably installed on both sides of the linkage rod 107, a telescopic rod 2 109 is rotatably connected to the reinforcing rod 102, and the bottom end of the telescopic rod 2 109 is rotatably connected to the linkage rod 107, a support plate 110 is fixedly connected inside the support frame 100, baffles 111 are fixedly connected to both sides of the upper end surface of the support plate 110, and energy storage mechanisms 200 are arranged inside the baffles 111 on both sides;

[0036] Depend on Figures 1 to 3 It can be seen that the support frame 100 is made of high-strength material, and the support frame 101 is installed and disassembled on the upper end surface of the support frame 100 by bolts. Three groups of reinforcing rods 102 are installed in the support frame 101 to improve the connection strength of the device. The boom frame 103 is rotatably connected to the support frame 101. The fitness personnel perform arm bending exercises through the boom frame 103. A telescopic rod 105 is installed on the boom frame 103 through a connecting frame 104. The bottom end of the telescopic rod 105 is fixedly connected to a linkage rod 107 through a circular plate 106. Counterweight blocks 108 can be installed on both sides of the linkage rod 107. Therefore, the fitness personnel can increase the number of counterweight blocks 108 on the outer wall of the linkage rod 107 to meet the exercise needs of different groups of people.

[0037] With the rapid development of contemporary society, the proportion of mental labor has greatly increased, which has reduced the demand for physical labor. Coupled with the improvement of material living standards, obesity, diabetes, hypertension, hyperlipidemia and other phenomena are very likely to occur, which seriously affects health. With the improvement of modern people's health awareness, more and more people choose to maintain their figure and health through fitness. The present invention is a fitness equipment for arm flexion exercise to achieve the effect of exercising hand muscles. The muscles of the human upper arm mainly include biceps and triceps. The biceps is a muscle with two muscle heads, and its main function is to flex the arm. When flexing the arm, another muscle triceps is also used. Through some forearm lifting exercises, the brachialis can be fully exercised;

[0038] The energy storage mechanism 200 includes a sliding member 201 disposed in the baffle 111, a moving member 202 is disposed on the outer wall of the linkage rod 107, the moving member 202 is disposed in the sliding member 201, an energy storage member 203 is disposed in the baffle 111, the sliding member 201 and the moving member 202 cooperate to adjust the energy storage member 203, and an adjusting member 204 is further disposed in the bracket 101. By arranging the energy storage mechanism 200, the present invention utilizes the gravitational potential energy when the counterweight block 108 falls, so that a certain amount of energy can be stored, which not only improves the stability of the device, but also improves the energy utilization rate, and at the same time plays an auxiliary exercise effect for the user's fitness;

[0039] It also includes an auxiliary mechanism 300, which includes a support member 301 arranged on the boom frame 103, and a rotating member 302 is arranged inside the support member 301. In order to meet the actual needs of different users, the present invention further refines the internal structure of the boom frame 103, and provides a support member 301 and a rotating member 302 inside the boom frame 103. In this way, the position of the gripper can be adjusted by cooperating with the support member 301 and the rotating member 302, thereby meeting the needs of different users.

[0040] Working principle: The present invention uses the gravitational potential energy of the counterweight 108 when it falls by setting the energy storage mechanism 200, so that the compression spring 201e and the torsion spring 203b store a certain amount of energy, which not only improves the stability of the device, but also improves the energy utilization rate. When the user applies external force, the energy storage mechanism 200 integrates the potential energy storage of the energy storage member 203 and the spring to form a dual energy storage mechanism. Energy release stage: When the user moves in the opposite direction, the energy storage member 203 and the spring release the potential energy, and the moving member 202 provides assistance to the counterweight 108 on the linkage rod 107, forming an "resistance-assistance" alternating mode, improving the energy utilization efficiency, and playing an auxiliary exercise effect for the user's fitness;

[0041] Furthermore, the present invention provides an auxiliary mechanism 300 and an adjustment mechanism 400, and provides a support member 301 and a rotating member 302 in the boom frame 103. Thus, the grip position can be adjusted through the cooperation of the support member 301 and the rotating member 302 to be suitable for people with different physical conditions. Furthermore, the strength of the device can be adjusted accordingly as the exercise progresses to achieve a better exercise effect.

[0042] Embodiment 2

[0043] The following technical features are added on the basis of the first embodiment: the sliding member 201 includes two groups of movable plates 201a, and the opposite sides of the movable plates 201a on both sides are fixedly connected to multiple groups of movable rods 201b, and one end of the multiple groups of movable rods 201b passing through the baffle 111 is fixedly connected to the sliding plate 201c, and the bracket 101 and the baffle 111 are fixedly connected with auxiliary rods 201d, and the sliding plate 201c is slidably connected to the outer wall of the auxiliary rod 201d, and the outer walls of the auxiliary rods 201d on both sides are sleeved with compression springs 201e, which are carbon springs with high strength and convenient for daily work use, and one end of the compression spring 201e is fixedly connected to the outer wall of the movable plate 201a;

[0044] Depend on Figures 3 to 7 It can be seen that a long strip-shaped support plate 110 is fixedly connected in the support frame 100, and square baffles 111 are fixedly connected on both sides of the upper end surface of the support plate 110. Three groups of movable rods 201b are movably connected in the baffles 111 on both sides. A circular sliding plate 201c is arranged at one end of the three groups of movable rods 201b that penetrate through the baffles 111, and a cylindrical auxiliary rod 201d is fixedly connected in the support frame 101 and the baffle 111. The sliding plate 201c is slidably connected to the auxiliary rod 201d, and the sliding plate 201c is connected to the outer wall of the movable plate 201a through the compression spring 201e. In this way, when the movable plates 201a on both sides are subjected to force, the movable plates 201a on both sides move back to back, and the compression spring 201e is deformed at this time;

[0045] The moving member 202 includes slots 202a symmetrically arranged in the movable plate 201a, and movable plates 202b are movably connected in the slots 202a on both sides, and linkage plates 202c are rotatably connected at both ends of the movable plate 202b, and the linkage plates 202c on both sides are correspondingly rotatably connected to the linkage rod 107, and a contact plate 202d is fixedly connected to one end of the movable plate 202b, and contact surfaces 202e are provided on both sides of the contact plate 202d;

[0046] Depend on Figures 3 to 5It can be seen that a long strip-shaped slot 202a is provided on the corresponding side of the movable plates 201a on both sides, and a movable plate 202b is movably connected in the slots 202a on both sides. The two ends of the movable plate 202b are rotatably connected to the linkage plate 202c, and one end of the linkage plate 202c is correspondingly rotatably connected to the linkage rod 107. When the linkage rod 107 drives the linkage plate 202c to move, the movable plate 202b is synchronously driven to move. The movable plate 202b is fixedly connected to the contact plate 202c. 02d, the contact surfaces 202e on both sides of the contact plate 202d are inclined surfaces. As can be seen from the above, the movable plate 202b drives the contact plate 202d to move synchronously. When the contact plate 202d moves in the slot 202a, the inclined surfaces on both sides give the movable plate 201a a force to both sides, or reduce the pressure on the movable plate 201a, so that the compression spring 201e pushes the movable plate 201a to move toward each other, thereby driving the sliding plate 201c on the movable rod 201b to move synchronously;

[0047] The energy storage member 203 includes an annular groove 203a symmetrically arranged in the baffle 111, a torsion spring 203b is fixedly connected in the annular groove 203a, the torsion spring 203b is a carbon spring with high strength and convenient for daily use, one end of the torsion spring 203b is fixedly connected to an energy storage plate 203c, a sleeve 203d is fixedly connected in the energy storage plate 203c, a hollow hole 203e is formed in the sleeve 203d, one end of the linkage rod 107 passes through the hollow hole 203e and is fixedly connected in the baffle 111, a locking block 203f is integrally formed on the inner wall of the hollow hole 203e, one end of the sliding plate 201c is fixedly connected to an annular cylinder 203g, an arc groove 203h is provided on the inner wall of the annular cylinder 203g, and the locking block 203f is correspondingly slidably connected in the arc groove 203h;

[0048] Depend on Figures 3 to 7 It can be known that the baffle 111 is fixedly connected with an energy storage plate 203c through a torsion spring 203b, and a hollow sleeve 203d is fixedly connected with the energy storage plate 203c. A locking block 203f is formed integrally in the hollow hole 203e of the sleeve 203d. At the same time, an annular cylinder 203g is fixedly connected to one end of the sliding plate 201c, and an arc groove 203h is formed in the annular cylinder 203g. Since the locking block 203f is correspondingly slidably connected in the arc groove 203h, when the sliding plate 201c is displaced by the movable plate 201a, the annular cylinder 203g on the sliding plate 201c is slidably connected in the hollow hole 203e of the sleeve 203d. Due to the deflection force of the arc groove 203h, the energy storage plate 203c on the sleeve 203d is driven to rotate, and the torsion spring 203b is deformed at this time.

[0049] The adjusting member 204 includes an auxiliary block 204a slidably connected to the auxiliary rods 201d on both sides, one end of the compression spring 201e is fixedly connected to the outer wall of the auxiliary block 204a, one end of the auxiliary block 204a is symmetrically fixedly connected to the limit rod 204b, one end of the limit rod 204b on both sides passes through the bracket 101 and is fixedly connected to the limit plate 204c, the limit plate 204c is internally threadedly connected with a screw rod 204d, and the screw rod 204d is correspondingly arranged in the bracket 101;

[0050] Depend on Figures 4 to 6 It can be known that an auxiliary rod 201d is fixedly connected inside the bracket 101 and the baffle 111, and the auxiliary rod 201d is slidably connected to the auxiliary block 204a, and the other end of the compression spring 201e is fixedly connected to the outer wall of the auxiliary block 204a, and one side of the auxiliary block 204a is symmetrically connected to the limiting rod 204b, and the limiting rod 204b passes through one end of the bracket 101 and is fixedly connected to the limiting plate 204c. When in use, the auxiliary block 204a is moved on the auxiliary rod 201d by moving the limiting plate 204c. At this time, the auxiliary block 204a resists the compression spring 201e, thereby adjusting the pressure position. When it reaches the appropriate position, it is locked by the screw 204d. The present invention adjusts the position of the auxiliary block 204a by the screw 204d to be suitable for people with different physical conditions. As the exercise proceeds, the strength of the device can also be adjusted accordingly to achieve a better exercise effect.

[0051] Working principle: As can be seen from Example 1, the user sits on the cushion 401c, and then grabs the two sets of movable arms 302e with both hands. When the user applies external force, the movable arm 302e leads the movable arm frame 103 to rotate on the bracket 101, so that the telescopic rod 105 drives the counterweight block 108 on the linkage rod 107 to move upward. The user can control the number of the counterweight block 108 according to his own needs. When the linkage rod 107 drives the linkage plate 202c to move, it drives the movable plate 202b to move synchronously, and the movable plate 202b drives the contact plate 202d to move synchronously. When the contact plate 202d moves in the slot 202a, the pressure applied to the movable plate 201a by the inclined surfaces on both sides is reduced, so that the compression spring 201e pushes the movable plate 201a to move toward each other, thereby giving a certain amount of assistance to the linkage plate 202c;

[0052] When the user moves in the reverse direction, the movable arm 302e leads the movable arm frame 103 to rotate on the bracket 101. At this time, the telescopic rod 105 drives the counterweight block 108 on the linkage rod 107 to move downward. At this time, the contact plate 202d slides in the slot 202a. Since the contact plate 202d is a structure with a middle expansion and inclined ends, when the counterweight block 108 drops to the lowest end, it pushes the movable plate 201a to move to both sides. The distance reaches the maximum, and the movable rod 201b pushes the sliding plate 201c on the auxiliary rod 202a. 01d, at this time, the compression spring 201e is deformed to store energy, and while the sliding plate 201c moves, the annular cylinder 203g on the sliding plate 201c is driven to slide and connect in the hollow hole 203e of the sleeve 203d. Due to the deflection force of the arc groove 203h, the energy storage plate 203c on the sleeve 203d is driven to rotate. At this time, the torsion spring 203b is deformed, realizing a dual energy storage mechanism, which not only improves the stability of the device, but also improves the energy utilization efficiency through the resistance-assistance alternating mode.

[0053] Embodiment 3

[0054] The following technical features are added on the basis of the second embodiment: the support member 301 includes a fixed plate 301a fixedly connected to the end of the boom frame 103, a convex portion 301b is integrally formed in the fixed plate 301a, a second annular groove 301c is provided in the fixed plate 301a, a slider 301d is slidably connected in the second annular groove 301c, the rotating member 302 includes a movable column 302a rotatably connected to the bottom end of the fixed plate 301a, a connecting plate 302b is fixedly connected to the side wall of the movable column 302a, The side wall of the connecting plate 302b is fixedly connected to the limiting column 302c, and the limiting column 302c is correspondingly fixedly connected to the outer wall of the slider 301d. The inner thread of the round convex part 301b is connected to the second screw rod 302d, and the second screw rod 302d is correspondingly arranged on the movable column 302a. The middle position of the connecting plate 302b is fixedly connected to the movable arm 302e, and the two side brackets 101 are respectively fixedly connected to the counterweight rod 301e, and the outer wall of the counterweight rod 301e is fixedly connected to the second counterweight block 301f;

[0055] Depend on Figures 3 to 9It can be known that the bottom end of the movable arm frame 103 is fixedly connected with a fixed plate 301a, and a convex portion 301b is integrally formed on the fixed plate 301a. An annular groove 301c is provided in the fixed plate 301a, and a slider 301d is slidably connected to the annular groove 301c. A limiting column 302c is fixedly connected to the slider 301d. A movable column 302a is rotatably connected to the bottom end of the fixed plate 301a, and a connecting plate 302b is fixedly connected between the limiting column 302c and the movable column 302a, and the movable column 302a can be locked by a screw 302d. In this way, when the device is in use, the position of the user's arm can be adjusted by rotating the movable arm 302e. When the user reaches a suitable position, the position of the movable column 302a is locked by the screw.

[0056] Working principle: It can be seen from Example 1 that when it is necessary to adapt the gripping position to different groups of people, first unscrew the screw 302d located in the convex portion 301b to release the locking state of the limit column 302c, and then adjust the position of the user's gripping arm by rotating the movable arm 302e. When the user's suitable position is reached, the position of the movable column 302a is locked by the screw, and the position of the movable arm 302e is adjusted in this way to achieve the effect of adapting to the use of different groups of people.

[0057] Embodiment 4

[0058] The following technical features are added on the basis of the third embodiment: the adjustment mechanism 400 is also included, the adjustment mechanism 400 includes a fixing member 401 arranged on the bracket 101, an auxiliary member 402 adapted to the human body is arranged in the fixing member 401, an offset member 403 is arranged in the fixing member 401, the fixing member 401 includes a combining plate 401a fixedly connected in the support frame 100, a vertical plate 401b is fixedly connected in the combining plate 401a, a cushion 401c is adjustable in the vertical plate 401b, a reinforcing plate 401d is fixedly connected to the upper end surface of the combining plate 401a, the auxiliary member 402 includes a reinforcing seat 402a fixedly connected to the inner wall of the reinforcing plate 401d, and limiting rollers 402b are detachably installed on both sides of the reinforcing seat 402a;

[0059] The offset member 403 includes a spherical groove 403a provided in the reinforcing plate 401d, a spherical block 403b is movably connected in the spherical groove 403a, a screw rod 403c is provided in the reinforcing plate 401d, the screw rod 403c is correspondingly pressed against the spherical block 403b, an auxiliary seat 403d is fixedly connected to one end of the spherical block 403b, a cushion 403e is fixedly connected to the auxiliary seat 403d, and telescopic rods 403f are provided on both sides of the reinforcing plate 401d, and the telescopic rods 403f on both sides are correspondingly arranged on the outer wall of the cushion 403e;

[0060] Depend on Figures 1 to 11It can be seen that the present invention can be used to exercise the user's waist, abdomen and back muscles by adjusting the back cushion 403e and the seat cushion 401c in the vertical plate 401b to support the human body and assist the user in exercising the device. At the same time, the device also sets a limiting roller 402b in the reinforcing plate 401d to further support the user and ensure the stability of the user during exercise. The position of the back cushion 403e can be accurately adjusted through the cooperation between the spherical block 403b and the screw rod 403c, so that the device has a wider applicability.

[0061] Working principle: When in use, the user sits on the seat cushion 401c, and then grabs the two sets of movable arms 302e with both hands. When the user applies external force, the movable arms 302e lead the movable arm frame 103 to rotate on the bracket 101. When the user feels that the comfort is poor, the user can unscrew the screw three 403c to release the locking state of the spherical block 403b, and then adjust the position of the cushion 403e. When the appropriate angle is reached, the screw three 403c is pressed against the spherical block 403b to lock the position of the cushion 403e. This is used to exercise the user's waist, abdomen and back muscles.

[0062] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A double-column pulling device for fitness, comprising a support frame (100), wherein brackets (101) are arranged on both sides of the upper end surface of the support frame (100), and multiple groups of reinforcing rods (102) are arranged between the brackets (101) on both sides, and a movable arm frame (103) is arranged on the bracket (101), and a connecting frame (104) is arranged on the movable arm, and a telescopic rod (105) is arranged on the connecting frame (104), and the protruding ends of the telescopic rod (105) on both sides are provided with circular plates (106), and linkage rods (107) are arranged in the circular plates (106) on both sides, and counterweight blocks (108) are arranged on both sides of the linkage rod (107), and a telescopic rod (109) is arranged on the reinforcing rod (102), and the bottom end of the telescopic rod (109) is arranged on the linkage rod (107), characterized in that: A support plate (110) is arranged in the support frame (100), baffles (111) are arranged on both sides of the upper end surface of the support plate (110), and energy storage mechanisms (200) are arranged in the baffles (111) on both sides; The energy storage mechanism (200) comprises a sliding member (201) arranged in the baffle (111); a moving member (202) is arranged on the outer wall of the linkage rod (107); the moving member (202) is arranged in the sliding member (201); an energy storage member (203) is arranged in the baffle (111); the sliding member (201) and the moving member (202) cooperate to adjust the energy storage member (203); and an adjusting member (204) is also arranged in the bracket (101); The invention also comprises an auxiliary mechanism (300), wherein the auxiliary mechanism (300) comprises a support member (301) arranged on the boom frame (103), a rotating member (302) being arranged inside the support member (301), and the support member (301) and the rotating member (302) cooperate to adjust the position of the gripper.

2. A double-column tension device for fitness according to claim 1, characterized in that: The sliding member (201) comprises two groups of movable plates (201a), and a plurality of groups of movable rods (201b) are arranged on opposite sides of the movable plates (201a). A sliding plate (201c) is arranged at one end of the plurality of groups of movable rods (201b) penetrating the baffle (111). Auxiliary rods (201d) are arranged inside the bracket (101) and the baffle (111), and the sliding plate (201c) is arranged on the outer wall of the auxiliary rod (201d). Compression springs (201e) are sleeved on the outer walls of the auxiliary rods (201d) on both sides, and one end of the compression spring (201e) is arranged on the outer wall of the movable plate (201a).

3. A double-column pulling device for fitness according to claim 2, characterized in that: The moving member (202) comprises a slot (202a) symmetrically arranged in the movable plate (201a), moving plates (202b) are arranged in the slots (202a) on both sides, linkage plates (202c) are arranged at both ends of the moving plate (202b), the linkage plates (202c) on both sides are correspondingly arranged on the linkage rod (107), a contact plate (202d) is arranged at one end of the moving plate (202b), and contact surfaces (202e) are arranged on both sides of the contact plate (202d).

4. A double-column pulling device for fitness according to claim 3, characterized in that: The energy storage member (203) comprises an annular groove (203a) symmetrically arranged in the baffle (111), a torsion spring (203b) is arranged in the annular groove (203a), an energy storage plate (203c) is arranged at one end of the torsion spring (203b), a sleeve (203d) is arranged in the energy storage plate (203c), a hollow hole (203e) is formed in the sleeve (203d), one end of the linkage rod (107) passing through the hollow hole (203e) is arranged in the baffle (111), a locking block (203f) is integrally formed on the inner wall of the hollow hole (203e), an annular cylinder (203g) is arranged at one end of the sliding plate (201c), an arc groove (203h) is arranged on the inner wall of the annular cylinder (203g), and the locking block (203f) is correspondingly slidably connected in the arc groove (203h).

5. A double-column pulling device for fitness according to claim 4, characterized in that: The adjusting member (204) comprises auxiliary blocks (204a) arranged on auxiliary rods (201d) on both sides, one end of the compression spring (201e) is arranged on the outer wall of the auxiliary block (204a), one end of the auxiliary block (204a) is symmetrically arranged with a limiting rod (204b), and the limiting rods (204b) on both sides pass through one end of the bracket (101) and a limiting plate (204c) is arranged, and a screw rod 1 (204d) is arranged in the limiting plate (204c), and the screw rod 1 (204d) is correspondingly arranged in the bracket (101).

6. A double-column tension device for fitness according to claim 5, characterized in that: The support member (301) comprises a fixing plate (301a) arranged at the end of the boom frame (103), a convex portion (301b) is integrally formed in the fixing plate (301a), a second annular groove (301c) is arranged in the fixing plate (301a), a sliding block (301d) is arranged in the second annular groove (301c), counterweight rods (301e) are respectively arranged on the brackets (101) on both sides, and a second counterweight block (301f) is arranged on the outer wall of the counterweight rod (301e).

7. A double-column tension device for fitness according to claim 6, characterized in that: The rotating member (302) comprises a movable column (302a) arranged at the bottom end of the fixed plate (301a), a connecting plate (302b) being arranged on the side wall of the movable column (302a), a limiting column (302c) being arranged on the side wall of the connecting plate (302b), the limiting column (302c) being arranged on the outer wall of the sliding block (301d) correspondingly, a screw rod 2 (302d) being arranged in the circular convex portion (301b), the screw rod 2 (302d) being arranged on the movable column (302a) correspondingly, and a movable arm (302e) being arranged in the middle position of the connecting plate (302b).

8. A double-column tension device for fitness according to claim 7, characterized in that: The invention also comprises an adjustment mechanism (400), wherein the adjustment mechanism (400) comprises a fixing member (401) arranged on the bracket (101), wherein an auxiliary member (402) adapted to the human body is arranged inside the fixing member (401), and wherein an offset member (403) is arranged inside the fixing member (401).

9. A double-column tension device for fitness according to claim 8, characterized in that: The fixing member (401) comprises a combining plate (401a) arranged in the supporting frame (100), a vertical plate (401b) being arranged in the combining plate (401a), a cushion (401c) being arranged in the vertical plate (401b), a reinforcing plate (401d) being arranged on the upper end surface of the combining plate (401a), and the auxiliary member (402) comprises a reinforcing seat (402a) arranged on the inner wall of the reinforcing plate (401d), and limiting rollers (402b) being arranged on both sides of the reinforcing seat (402a).

10. A double-column tension device for fitness according to claim 9, characterized in that: The offset member (403) comprises a spherical groove (403a) arranged in the reinforcing plate (401d), a spherical block (403b) is movably connected in the spherical groove (403a), a screw rod (403c) is arranged in the reinforcing plate (401d), the screw rod (403c) is correspondingly pressed against the spherical block (403b), an auxiliary seat (403d) is arranged at one end of the spherical block (403b), a cushion (403e) is arranged in the auxiliary seat (403d), and telescopic rods (403f) are arranged on both sides of the reinforcing plate (401d), and the telescopic rods (403f) on both sides are correspondingly arranged on the outer wall of the cushion (403e).

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