Muscle strength training device with electric resistance

Abstract

The utility model discloses a muscle strength training device with an electric resistance function, which comprises a bed frame, at least one sliding rail is arranged in a longitudinal direction, two guide wheels are respectively arranged on two sides of a first end in the longitudinal direction, and a bed tail frame is arranged at a second end in the longitudinal direction; a sliding plate slides on a bed surface of the bed frame along the longitudinal direction; the two inhaul cables are respectively provided with a connecting end and a force application end, the two connecting ends are connected with the sliding plate, and the two inhaul cables wind around the two guide wheels and are in linkage with the sliding plate through the two force application ends to move in the first direction. An electric resistance unit generates resistance through the power source, the resistance is transmitted to a pull rope, the pull rope is connected with the sliding plate, the resistance enables the sliding plate to move in the second direction, and the second direction is opposite to the first direction. Therefore, the output form of the resistance can be easily adjusted and changed.

Description

Technical Field

[0001] The utility model relates to a resistance mechanism of a muscle strength training device which is simple to operate and can adjust and change the resistance output mode at any time. Background Art

[0002] Currently, common muscle training devices, such as Pilates and rowing machines, are all equipped with variable resistance mechanisms, which can be used to adjust the resistance according to different users to facilitate training.

[0003] Therefore, there is the Chinese invention patent case CN111902192 "Super Classic Core Bed Equipment" announced on February 8, 2022. It discloses a rectangular frame for a core bed motion device, which includes a pair of spaced-apart side rail components, a head end component, a foot end component; and four corner components, each corner component connecting one of the side rail components to one of the end components. Each side rail component and each end component is a rigid, substantially rectangular extrusion. The top wall, bottom wall and inner vertical wall have internal screw seats. The outer vertical wall has a pair of spaced-apart, internally protruding screw seats. Each corner component is fixed to one of the end components and one of the side components by a threaded fastener protruding from the screw seat through a hole in the L-shaped elongated corner component, and the L-shaped cover conceals the fastener.

[0004] The prior art patent mainly relies on the bracket being elastically biased toward the foot end member by one or more springs, which are connected to anchor rods fixed to a frame adjacent to the foot end member. The variable resistance can only be adjusted by adjusting and fixing the springs with different numbers and elastic coefficients, which makes installation and removal quite difficult and troublesome.

[0005] There is also a patent case of utility model No. CN215938899 "A Pilates core bed for comprehensive training at home" announced by China on March 4, 2022. It discloses: including a bed frame, the front and rear ends of the bed frame are fixedly installed with a bedside frame, and a footrest is arranged on the top of the bedside frame; the front and rear inner walls of the bed frame are fixedly installed with a shift plate, and a number of shift columns are fixed on the shift plate, and the left and right inner walls of the bed frame are fixed with a metal slide, and a bracket is slidably installed on the metal slide, and a back pad, a shoulder stop pad and a head pad are installed on the bracket, and an angle adjustment structure is installed at the bottom end of the head pad, and a spring fixing seat is fixed on the bottom end surface of the bracket, and a number of metal springs are hooked on the front and rear end surfaces of the spring fixing seat; the angle of the head pad can be adjusted appropriately according to personal needs, and the operation is simple; the sliding range of the back pad can also be adjusted, which solves the problem of height differences among different individuals.

[0006] The patent prior case also achieves the function of adjusting the variable resistance by adjusting the metal springs with different numbers and elastic coefficients, so it is quite difficult and troublesome to install and disassemble. However, since the rebound force of the tension spring after being released is quite large, once the user loosens the rope fixed on the bracket or back pad due to insufficient strength, he or she is easily injured by the rebounding rope, which is potentially dangerous. Moreover, after long-term use, there will be disadvantages such as elastic fatigue causing resistance failure, which is not ideal in use. Utility Model Content

[0007] Therefore, in view of the above-mentioned shortcomings of the resistance adjustment mechanism of the current muscle training device, the purpose of the present utility model is to provide a muscle training device with electric resistance.

[0008] The utility model provides a muscle training device with electric resistance, which comprises: a bed frame, which comprises at least one slide rail in a longitudinal direction, the bed frame is respectively provided with a guide wheel on both sides of a first end of the longitudinal direction, and the bed frame is provided with a bed end frame at a second end of the longitudinal direction; a slide plate, which is combined with the slide rail and slides along the longitudinal direction on a bed surface of the bed frame; two pull cables, which respectively have a connecting end and a force-applying end, and the two connecting ends are respectively connected to the slide plate, and the two pull cables are respectively wound around the two guide wheels, and the slide plate is linked to move along a first direction via the two force-applying ends; an electric resistance unit, which is fixed to the bed frame, and the electric resistance unit generates a resistance through a power supply, and the resistance is transmitted to a pull cable, and the pull cable is connected to the slide plate, so that the slide plate has a tendency to move along a second direction by the resistance, and the second direction is opposite to the first direction.

[0009] The electric resistance unit is a motor or an electromagnetic brake.

[0010] The above further includes a control unit, which is connected to the electric resistance unit via a wired or wireless signal to change the size of the resistance.

[0011] During the movement of the slide plate in the second direction, the resistance is one of the following output types or any combination thereof: constant resistance, gradually weakening resistance, and gradually increasing resistance.

[0012] The control unit is a mobile phone or a control panel.

[0013] The bed frame is provided with a headboard at the first end.

[0014] The two sides of the second end of the bed frame are respectively provided with a coupling piece, and the bed foot frame is detachably combined with the bed frame via the coupling piece.

[0015] The above-mentioned connecting piece is a clamping bolt. A long groove is respectively provided on both sides of the second end of the bed frame for the clamping bolt to be inserted into the long groove. After the foot frame of the bed is swung at an angle and adjusted a distance relative to the bed frame, the clamping bolt is tightened and fixed.

[0016] The bed foot frame is a U-shaped frame or a plate body.

[0017] The slide plate is provided with two detachable shoulder plates, which are arranged in a transverse direction.

[0018] The cross section of the slide rail is set to be I-shaped, and a sliding part is respectively arranged on both sides of the slide rail. The bottom of the slide plate is provided with a plurality of pulleys along the longitudinal direction, and the plurality of pulleys slide in the sliding part.

[0019] A gripping piece is fixed to the force-applying end.

[0020] The holding piece is a holding ring, a holding handle, a holding circle or a holding belt.

[0021] A power output shaft of the electric resistance unit generates the resistance by connecting to a speed reducer.

[0022] The above technical features have the following advantages:

[0023] 1. Through the control and adjustment of the electric resistance unit, the resistance can be adjusted and changed at any time according to the muscle strength training mode of different parts of the body to use different matching modes such as constant resistance, gradually weakening resistance or gradually increasing resistance.

[0024] 2. The entire resistance adjustment and change operation settings are quite simple and convenient.

[0025] 3. The disadvantage of the existing training device that uses a spring structure as a resistance source can be further improved, and the existing training device must install or remove springs of different numbers and elastic coefficients when adjusting the resistance, which makes the adjustment quite difficult and troublesome.

[0026] 4. In particular, there is no danger of being injured by the rebounding cable due to excessive rebound force after the tension spring is released.

[0027] 5. Moreover, after long-term use, there will be no problems such as spring failure due to elastic fatigue. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional appearance diagram of an embodiment of the utility model.

[0029] Figure 2 It is a side view of an embodiment of the utility model.

[0030] Figure 3This is a cross-sectional view of an embodiment of the utility model in which a pulley is disposed in a sliding portion of a slide rail.

[0031] Figure 4 It is a schematic diagram of the swing angle and adjustment distance of the footrest relative to the bed frame according to an embodiment of the utility model.

[0032] Figure 5 It is a schematic diagram of the power output shaft of the electric resistance unit of the embodiment of the utility model connected to the reducer to generate resistance output.

[0033] Figure 6 This is a schematic diagram of hand retraction training according to an embodiment of the present utility model.

[0034] Figure 7 This is a schematic diagram of hand stretching training according to an embodiment of the present invention.

[0035] Figure 8 It is a schematic diagram of performing foot flexion training according to an embodiment of the present invention.

[0036] Fig. 9 This is a schematic diagram of performing foot stretching training according to an embodiment of the present invention.

[0037] Fig.10 It is a schematic diagram of a hand stretching training toward a first direction according to an embodiment of the utility model.

[0038] Fig.11 It is a schematic diagram of the hand stretching training towards the second direction according to an embodiment of the utility model.

[0039] Explanation of the reference numerals: 1-bed frame; 11-slide rail; 111-bed surface; 112-sliding part; 12-guide wheel; 13-foot frame; 14-head frame; 15-connecting piece; 151-long groove; 2-slide plate; 21-pulley; 22-shoulder plate; 3-pull cable; 31-connecting end; 32-force-applying end; 33-gripping piece; 4-electric resistance unit; 41-power output shaft; 42-reducer; 43-pull rope; 5-control unit; 6-auxiliary pad; A-first end; B-second end; C-operator; X-longitudinal direction; X1-first direction; X2-second direction; Y-transverse direction. DETAILED DESCRIPTION

[0040] See also Figure 1 , Figure 2 and Figure 3 As shown, the embodiment of the utility model comprises: a bed frame 1, a slide plate 2, a cable 3, an electric resistance unit 4 and a control unit 5, wherein:

[0041] A bed frame 1 includes at least one slide rail 11 in a longitudinal direction X. The slide rail 11 is located on a bed surface 111 between a first end A and a second end B of the bed frame 1. The cross section of the slide rail 11 is set to be I-shaped, and a sliding portion 112 is respectively provided on both sides of the slide rail 11. The bed frame 1 is provided with a guide wheel 12 on both sides of the first end A along the longitudinal direction X, and the bed frame 1 is provided with a foot frame 13 along the second end B of the longitudinal direction X. In addition, the bed frame 1 is vertically provided with a head frame 14 at the first end A. The bed frame 1 has a coupling member 15 on both sides of the second end B, so that the foot frame 13 can be detachably combined with the bed frame 1 by the coupling member 15. The coupling member 15 is a tightening bolt. The bed frame 1 has a long groove 151 on both sides of the second end B. Figure 4 As shown in FIG. 1 , the clamping bolt is inserted into the long slot 151 so that the bed end frame 13 is swung at an angle and adjusted at a distance relative to the bed frame 1 and then the clamping bolt is tightened and fixed. The bed end frame 13 is a U-shaped frame or a plate.

[0042] A slide plate 2 is combined with the slide rail 11. A plurality of pulleys 21 are provided at the bottom of the slide plate 2 along the longitudinal direction X. The plurality of pulleys 21 slide in the sliding parts 112 located on both sides of the slide rail 11, so that the slide plate 2 slides on the bed surface 111 of the bed frame 1 along the longitudinal direction X. The slide plate 2 is provided with two detachable shoulder plates 22, which are arranged along a transverse direction Y. The transverse direction Y is perpendicular to the longitudinal direction X.

[0043] The two cables 3 each have a connection end 31 and a force-applying end 32. The two connection ends 31 are connected to the slide 2. The two cables 3 are passed through the two guide wheels 12 and the slide 2 is moved in a first direction X1 via the force-applying ends 32. A gripping member 33 may be fixed to the force-applying end 32. The gripping member 33 may be a gripping ring, a gripping handle, a gripping ring or a gripping belt to facilitate gripping and force-applying.

[0044] An electric resistance unit 4 is fixed to the bed frame 1. The electric resistance unit 4 is a motor or an electromagnetic brake. The power output shaft 41 of the electric resistance unit 4 is connected to a reducer 42 through a power supply to generate a resistance output. Figure 5 The power source can be an external mains electricity, battery or storage battery (not shown). The resistance is transmitted to a pull rope 43, which is connected to the slide 2, and the slide 2 has a tendency to move along a second direction X2 with the resistance, and the second direction X2 is opposite to the first direction X1. During the movement of the slide 2 along the second direction X2, the resistance is one of the following output types or any combination: constant resistance, gradually weakening resistance, and gradually increasing resistance.

[0045] A control unit 5 is connected to the electric resistance unit 4 via a wired or wireless signal to change the magnitude of the resistance output. The control unit 5 is a mobile phone or a control panel to select the output type of the resistance and automatically control the magnitude of the resistance output by the electric resistance unit 4.

[0046] When using the hand strength training mode, Figure 1 , Figure 5 , Figure 6 and Figure 7 As shown, an operator C can select different resistance output types through the control unit 5 in advance according to different training methods, and automatically control the size of the resistance output. For example, during the training process, it can be set to constant resistance, gradually weakening resistance or gradually increasing resistance, as well as the training time for outputting different resistances. When the setting is completed, the operator C can sit on the slide 2, and then face the foot frame 13 at the second end B of the bed frame 1, and then hold the gripping parts 33 of the two cables 3 with both hands. At the same time, the electric resistance unit 4 is started, and the power output shaft 41 of the electric resistance unit 4 generates the resistance through the reducer 42, and the resistance pulls the slide 2 along the second direction X2. At this time, the operator C extends both hands toward the second direction X2 and applies force, so that the body of the operator C can generate a reaction force in the opposite direction, and use the reaction force to push the multiple pulleys 21 at the bottom of the slide 2 [as shown in FIG. Figure 3 As shown in FIG. 1 , the slide 2 slides in the sliding part 112 on both sides of the slide rail 11, so that the slide plate 2 slides along the longitudinal direction X on the bed surface 111 of the bed frame 1 toward the first direction X1, while resisting the resistance. Then the operator C retracts both hands and relaxes the force of the grip 33, and the slide plate 2 is pulled toward the bed end frame 13 along the second direction X2 through the pulling of the resistance. In this way, the operator C's hands can be extended or retracted alternately, which can drive the slide plate 2 to move back and forth in the longitudinal direction X to perform hand muscle strength training. At the same time, during the training process, the control unit 5 automatically controls the size of the resistance and the training time according to the set resistance output mode, so as to change to constant resistance, gradually weakening resistance or gradually increasing resistance during the training process.

[0047] When using the foot strength training mode, Figure 1 , Figure 5 , Figure 8 and Fig. 9As shown, the operator C can select different resistance output modes through the control unit 5 in advance according to different training methods, and automatically control the size of the resistance output. For example, during the training process, it can be set to constant resistance, gradually weakening resistance or gradually increasing resistance, and the training time of outputting different resistances. At the same time, the coupling 15 is loosened, and then the bed end frame 13 is adjusted in the long groove 151 of the bed frame 1, so that the bed end frame 13 is swung to a proper angle relative to the bed frame 1 and adjusted to move to a proper distance, and then the coupling 15 is tightened to fix the bed end frame 13. After the setting is completed, the operator C can lie on the slide 2, and then the head is facing the bed head frame 14 at the first end A of the bed frame 1. At the same time, the shoulders of the operator C can be against the two shoulder boards 22 on the slide 2, and then the legs are bent and against the bed end frame 13. At the same time, the electric resistance unit 4 is started, and the power output shaft 41 of the electric resistance unit 4 generates the resistance through the reducer 42, and the resistance pulls the skateboard 2 along the second direction X2. At this time, the operator C stretches his feet toward the second direction X2 to apply force, so that the body of the operator C can generate a reaction force in the opposite direction, and the reaction force is used to push the plurality of pulleys 21 at the bottom of the skateboard 2. Figure 3 As shown in FIG. 1 , the slide plate 2 slides in the sliding part 112 on both sides of the slide rail 11, so that the slide plate 2 slides along the longitudinal direction X on the bed surface 111 of the bed frame 1 toward the first direction X1, while resisting the resistance. Then the operator C bends and retracts the feet and relaxes the force, and the slide plate 2 is pulled toward the bed end frame 13 along the second direction X2 by the pulling of the resistance. In this way, the operator C's feet can be extended or bent and retracted alternately, which can drive the slide plate 2 to move back and forth in the longitudinal direction X to perform muscle strength training of the feet. At the same time, during the training process, the control unit 5 automatically controls the size of the resistance and the training time according to the set resistance output mode, so as to change to constant resistance, gradually weakening resistance or gradually increasing resistance during the training process.

[0048] When using the hand or other parts of the body for strength training, such as Figure 1 , Figure 5 , Fig.10 and Fig.11As shown, an auxiliary pad 6 can be placed and fixed on the slide board 2 in advance. The operator C can select different resistance output types through the control unit 5 according to different training methods in advance, and automatically control the size of the resistance output. For example, during the training process, it can be set to constant resistance, gradually weakening resistance or gradually increasing resistance, and the training time for outputting different resistances. When the setting is completed, the operator C can lie prone on the auxiliary pad 6, then turn his head toward the headstock 14 of the first end A of the bed frame 1, and then hold his hands at appropriate positions of the two cables 3 or the holding parts 33 respectively. At the same time, the electric resistance unit 4 is started, and the power output shaft 41 of the electric resistance unit 4 generates the resistance through the reducer 42, and the resistance pulls the slide board 2 along the second direction X2. At this time, the operator C extends both hands backward in the second direction X2 and applies force, and stretches both hands and swings them behind the back, so that the body of the operator C can generate a reaction force in the opposite direction, and use the reaction force to push the multiple pulleys 21 at the bottom of the slide board 2 [as shown in FIG. Figure 3 As shown in FIG. 1 , the slide 2 slides in the sliding part 112 on both sides of the slide rail 11, so that the slide plate 2 slides along the longitudinal direction X on the bed surface 111 of the bed frame 1 toward the first direction X1, while resisting the resistance. Then the operator C stretches both hands forward toward the first direction X1 and relaxes the force, and the slide plate 2 is pulled toward the bed end frame 13 along the second direction X2 by the pulling of the resistance. In this way, the operator C's hands can be stretched or retracted alternately, which can drive the slide plate 2 to move back and forth in the longitudinal direction X to perform muscle strength training of the hands or other parts of the body. At the same time, the control unit 5 automatically controls the size of the resistance and the training time according to the set resistance output mode during the training process, so as to change to constant resistance, gradually weakening resistance or gradually increasing resistance during the training process.

[0049] The utility model utilizes the control and adjustment of the electric resistance unit 4, and can adjust and change the resistance to constant resistance, gradually weakening resistance or gradually increasing resistance at any time according to the muscle strength training mode of different parts of the body. Therefore, it is quite easy to set the operation of resistance adjustment and change. It can obviously improve the existing training device that uses a spring structure as the source of resistance. Therefore, when adjusting and changing the resistance size, springs with different numbers and elastic coefficients must be installed or disassembled, which is quite difficult and troublesome. In contrast, the utility model is simpler and more convenient to adjust and change the resistance output type. There is no danger of being injured by the rebounding cable due to excessive rebound force after the tension spring is released. Moreover, after long-term use, there will be no problems such as resistance failure due to elastic fatigue of the spring.

[0050] Based on the description of the above embodiments, the operation, use and effects of the present invention can be fully understood. However, the above embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of implementation of the present invention. That is, simple equivalent changes and modifications made according to the claims and the description of the present invention are all within the scope of the present invention.

Claims

1. A muscle strength training device with electric resistance, characterized in that: Contains: A bed frame, comprising at least one slide rail in a longitudinal direction, the bed frame is provided with a guide wheel at both sides of a first end in the longitudinal direction, and a foot frame at a second end in the longitudinal direction; A slide plate, combined with the slide rail, slides along the longitudinal direction on a bed surface of the bed frame; Two cables, each having a connection end and a force-applying end, the two connection ends are respectively connected to the slide plate, the two cables are respectively passed through the two guide wheels, and the slide plate is linked to move along a first direction via the two force-applying ends; An electric resistance unit is fixed to the bed frame. The electric resistance unit generates a resistance through a power supply. The resistance is transmitted to a pull rope connected to the slide board. The resistance makes the slide board move in a second direction opposite to the first direction.

2. The muscle strength training device with electric resistance according to claim 1, characterized in that: The electric resistance unit is a motor or an electromagnetic brake.

3. The muscle strength training device with electric resistance according to claim 1, characterized in that: The device also comprises a control unit, which is connected to the electric resistance unit via a wired or wireless signal to change the magnitude of the resistance.

4. The muscle strength training device with electric resistance as claimed in claim 3, characterized in that: During the movement of the slide plate along the second direction, the resistance is one of the following output types or any combination thereof: constant resistance, gradually weakening resistance, and gradually increasing resistance.

5. The muscle strength training device with electric resistance as claimed in claim 3, characterized in that: The control unit is a mobile phone or a control panel.

6. The muscle strength training device with electric resistance according to claim 1, characterized in that: The bed frame is provided with a headboard at the first end.

7. The muscle strength training device with electric resistance according to claim 1, characterized in that: The two sides of the second end of the bed frame are respectively provided with a combining piece, and the bed foot frame is detachably combined with the bed frame through the combining piece.

8. The muscle strength training device with electric resistance according to claim 7, characterized in that: The coupling member is a clamping bolt, and a long groove is respectively provided on both sides of the second end of the bed frame for the clamping bolt to be inserted into the long groove, so that the bed foot frame is swung at an angle and adjusted a distance relative to the bed frame, and then the clamping bolt is tightened and fixed.

9. The muscle strength training device with electric resistance according to claim 1, characterized in that: The bed foot frame is a U-shaped frame or a plate body.

10. The muscle strength training device with electric resistance according to claim 1, characterized in that: The slide plate is vertically provided with two detachable shoulder plates, which are arranged in a transverse direction.

11. The muscle strength training device with electric resistance according to claim 1, characterized in that: The cross section of the slide rail is in an I-shape. A sliding part is respectively arranged on both sides of the slide rail. A plurality of pulleys are arranged along the longitudinal direction at the bottom of the slide plate. The plurality of pulleys slide in the sliding part.

12. The muscle strength training device with electric resistance according to claim 1, characterized in that: A holding piece is fixed to the force applying end.

13. The muscle strength training device with electric resistance according to claim 12, characterized in that: The holding piece is a holding ring, a holding handle, a holding circle or a holding belt.

14. The muscle strength training device with electric resistance according to claim 1, characterized in that: A power output shaft of the electric resistance unit generates the resistance by connecting with a speed reducer.

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