Elastic take-up device and rowing machine

Abstract

The elastic take-up device comprises a take-up device body, the take-up device body comprises a lower shell and an upper shell, an installation chamber is formed by the lower shell and the upper shell, the lower shell and the upper shell are detachably installed, a roller assembly is installed in the installation chamber, an elastic rope is arranged on the roller assembly in a winding mode, and the elastic rope is connected with the lower shell. An avoiding hole is formed in the frame of the lower shell and / or the frame of the upper shell, and the elastic rope penetrates through the avoiding hole and extends to the outside. According to the utility model, the elastic rope is wound around the roller assembly in the mounting chamber, and the elastic rope is pulled out and contracted through the guidance of the roller assembly, so that not only can the contraction of the elastic rope be realized, but also the elastic rope can be hidden in the mounting chamber formed between the lower shell and the upper shell, the occupied space is reduced, and the space is saved. And the influence of external dust on the elastic rope is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of rowing machines, in particular to an elastic wire take-up device and a rowing machine. Background Art

[0002] At present, the common rowing machine reel design on the market is mainly based on the coil spring disc. Although its structure is simple, in actual application, the rebound force of the coil spring disc is often too large, making it difficult for users to accurately control the force during rowing, thus affecting the exercise experience and effect. In addition, excessive rebound force may increase the risk of sports injuries and pose a potential threat to the user's health.

[0003] In order to solve the problem of the large rebound force of the winding spring coil reel, rowing machine designs that use elastic cords to retract the reel have appeared on the market. However, the elastic cord is usually directly exposed to the outside of the rowing machine, which is not only easily corroded by environmental factors such as dust and dirt, but also occupies a large space, which is not conducive to the compactness and aesthetics of the overall structure of the rowing machine. In addition, the exposed elastic cord may also pose a safety hazard to the user. For this reason, we provide an elastic cord reel and a rowing machine to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide an elastic wire take-up device and a rowing machine.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] An elastic wire take-up device comprises a wire take-up device body, wherein the wire take-up device body comprises a lower shell and an upper shell, wherein the lower shell and the upper shell form an installation chamber and can be detachably installed, wherein a roller assembly is installed in the installation chamber, wherein an elastic rope is wound on the roller assembly, wherein an avoidance hole is provided on the frame of the lower shell and / or the frame of the upper shell, and wherein the elastic rope passes through the avoidance hole and extends to the outside.

[0007] Preferably, the roller assembly includes a plurality of first guide wheels and a plurality of second guide wheels respectively installed on both sides of the installation chamber, an elastic rope is wound between the first guide wheels and the second guide wheels, and the end of the elastic rope located in the installation chamber is fixedly installed on the inner wall of the lower shell or the upper shell.

[0008] Preferably, a first intermediate wheel and a second intermediate wheel are arranged between the first guide wheel and the second guide wheel, and when the elastic rope is wound around the first guide wheel and the second guide wheel, it is also wound around the first intermediate wheel and the second intermediate wheel.

[0009] The utility model also discloses a rowing machine, comprising a frame, the frame comprising a frame body and a slide rail, any one of the above-mentioned elastic wire take-up devices is fixedly mounted on the frame body, a pull-rope transmission device and a resistance device are also fixedly mounted on the frame body, the other end of the elastic rope is mounted on the pull-rope transmission device, the pull-rope transmission device and the resistance device are transmission-connected, a webbing is also wound around the pull-rope transmission device, a handle for stretching exercises is fixedly mounted on the outer end of the webbing, a pedal for foot abutment is fixedly mounted on the frame body, and a seat cushion is slidably mounted on the slide rail.

[0010] Preferably, the rope-pulling transmission device includes a fixing seat fixedly mounted on the frame, a first mounting shaft being mounted on the fixing seat, a rope drum, a webbing drum and a pulley being rotatably mounted on the first mounting shaft and fixedly connected to each other, an end of the elastic rope being mounted on the rope drum, the webbing being wound on the webbing drum, and a transmission belt being mounted on the pulley and connected to the resistance device.

[0011] Preferably, the resistance device includes a mounting seat fixedly mounted on the frame, a second mounting shaft fixedly mounted on the mounting seat, a flywheel rotatably mounted on the second mounting shaft, a resistance structure for generating movement resistance to the flywheel is installed on the frame, and also includes an adjustment structure for adjusting the size of the movement resistance generated by the resistance structure to the flywheel.

[0012] Preferably, the resistance structure includes a resistance ring fixedly arranged on the outer circular surface of the flywheel, and also includes a rotating shaft fixedly installed on the frame, on which a magnetic frame adapted to the resistance ring is rotatably installed, and a magnetic part is fixedly installed on the surface of the magnetic frame close to the resistance ring.

[0013] Preferably, the adjustment structure includes a fixing plate fixedly mounted on the frame body, and a transmission plate fixedly mounted on the end of the magnetic frame, a transmission rope is fixedly mounted on the transmission plate, and an adjustment knob for adjusting the distance between the magnetic frame and the resistance ring is mounted on the other end of the transmission rope.

[0014] Preferably, the mounting seat is U-shaped.

[0015] The utility model has the following advantages:

[0016] 1. The utility model winds the elastic cord around a roller assembly in the installation chamber, and pulls out and retracts the elastic cord through the guidance of the roller assembly. This design can not only retract the elastic cord, but also hide the elastic cord in the installation chamber formed between the lower shell and the upper shell, which not only reduces space occupation, but also avoids the influence of external dust on the elastic cord.

[0017] 2. The utility model arranges a plurality of first guide wheels and second guide wheels in the installation chamber, so that a longer elastic rope can be wound on the surface thereof, thereby satisfying the stretching length of the elastic rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the rowing machine of the present utility model.

[0019] Figure 2 The utility model is a schematic diagram of the installation relationship between the rope-pulling transmission device, the handle and the wire-receiving device body.

[0020] Figure 3 The utility model is a schematic diagram of the internal structure of the wire take-up device body.

[0021] Figure 4 It is a schematic diagram of the rope-pulling transmission device of the present utility model.

[0022] Figure 5 It is a schematic diagram of the assembly state of the pull rope transmission device and the resistance device of the utility model.

[0023] Figure 6 It is a schematic diagram of the resistance device structure of the utility model.

[0024] Figure 7 This is a schematic diagram of the installation state of the magnetic frame and magnetic parts of the utility model.

[0025] In the figure, 1, frame; 11, frame body; 12, slide rail; 2, wire take-up device body; 21, lower shell; 22, upper shell; 23, first guide wheel; 24, second guide wheel; 25, first intermediate wheel; 26, second intermediate wheel; 27, avoidance hole; 3, elastic rope; 4, rope pulley transmission device; 41, first mounting axis; 42, rope drum; 43, webbing drum; 44, pulley; 5, resistance device; 51, second mounting axis; 52, adjustment knob; 53, flywheel; 54, resistance ring; 55, rotating shaft; 56, magnetic frame; 57, magnetic part; 58, transmission plate; 59, fixing plate; 510, transmission rope; 6, handle; 7, pedal; 8, cushion. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] like Figure 1 — Figure 7 The embodiment shown.

[0029] An elastic wire take-up device comprises a wire take-up device body 2, wherein the wire take-up device body 2 comprises a lower shell 21 and an upper shell 22, wherein the lower shell 21 and the upper shell 22 form an installation chamber and can be detachably installed, wherein a roller assembly is installed in the installation chamber, wherein an elastic rope 3 is wound on the roller assembly, and an avoidance hole 27 is provided in the frame of the lower shell 21 and / or the frame of the upper shell 22, and the elastic rope 3 extends to the outside through the avoidance hole 27.

[0030] See also Figure 3 As shown, the elastic cord 3 is wound around the roller assembly in the installation chamber, and the elastic cord 3 is pulled out and retracted by the guidance of the light-transmitting roller assembly. This design can not only realize the retraction of the elastic cord 3, but also hide the elastic cord 3 in the installation chamber formed between the lower shell 21 and the upper shell 22, which not only reduces the space occupied, but also avoids the influence of external dust on the elastic cord 3.

[0031] In order to enable the elastic rope 3 to extend from the installation chamber, an avoidance hole 27 can be optionally opened on the frame of the lower shell 21, or an avoidance hole 27 can be opened on the frame of the upper shell 22, or an avoidance hole 27 can be opened at the junction of the lower shell 21 and the upper shell 22. The shape of the avoidance hole 27 can be rectangular, circular, elliptical or the like. In the present embodiment, in order to prevent the elastic rope 3 from rubbing against the inner wall of the avoidance hole 27 when the rope is out, the shape of the avoidance hole 27 can be selected to be a circular or elliptical arc-shaped transition shape.

[0032] The roller assembly includes a plurality of first guide wheels 23 and a plurality of second guide wheels 24 respectively installed on both sides of the installation chamber, an elastic rope 3 is wound between the first guide wheels 23 and the second guide wheels 24, and the end of the elastic rope 3 located in the installation chamber is fixedly installed on the inner wall of the lower shell 21 or the upper shell 22.

[0033] See also Figure 3 As shown, a plurality of first guide wheels 23 and second guide wheels 24 are arranged in the installation room, so that a longer elastic cord 3 can be wound on its surface, thereby satisfying the stretching length of the elastic cord 3 .

[0034] A first intermediate wheel 25 and a second intermediate wheel 26 are provided between the first guide wheel 23 and the second guide wheel 24 . When the elastic rope 3 is wound around the first guide wheel 23 and the second guide wheel 24 , it is also wound around the first intermediate wheel 25 and the second intermediate wheel 26 .

[0035] See also Figure 3 As shown, the first guide wheel 23 and the second guide wheel 24 are rotatably installed in the installation room. Through the first intermediate wheel 25 and the second intermediate wheel 26 between the first guide wheel 23 and the second guide wheel 24, the winding length of the elastic rope 3 can be further increased, thereby meeting the use requirements.

[0036] In the present embodiment, there are three first guide wheels 23 and three second guide wheels 24, which are respectively located on both sides of the installation chamber. Accordingly, in order to meet the guiding requirements and guide the elastic rope 3 more smoothly, each of the first guide wheels 23, the second guide wheels 24, the first intermediate wheels 25 and the second intermediate wheels 26 is provided with a groove on the outer circumference, and the shape of the groove is adapted to the diameter of the elastic rope 3 to prevent the elastic rope 3 from escaping from the guidance of the first guide wheel 23, the second guide wheel 24, the first intermediate wheel 25 and the second intermediate wheel 26.

[0037] The utility model also discloses a rowing machine, comprising a frame 1, wherein the frame 1 comprises a frame body 11 and a slide rail 12, wherein any one of the above-mentioned elastic wire take-up devices is fixedly mounted on the frame body 1, a pull rope transmission device 4 and a resistance device 5 are fixedly mounted on the frame body 11, the other end of the elastic rope 3 is mounted on the pull rope transmission device 4, the pull rope transmission device 4 and the resistance device 5 are transmission-connected, a webbing is also wound around the pull rope transmission device 4, a handle 6 for stretching exercise is fixedly mounted on the outer end of the webbing, a pedal 7 for foot abutment is fixedly mounted on the frame body 11, and a seat cushion 8 is slidably mounted on the slide rail 12.

[0038] See also Figure 1 As shown, the elastic wire take-up device is fixedly installed at the bottom of the frame 11. When using it, a person can first sit on the cushion 8, then put his feet against the pedals 7, hold the handle 6, and stretch the handle 6 with his hands, and sit on the cushion 8 to move while stretching, thereby achieving an exercise effect. When stretching, the handle 6 will drive the rope transmission device 4 to rotate through the webbing, and the rotational power will be transmitted to the resistance device 5. The resistance device 5 transmits the generated motion resistance to the rope transmission device 4 through the belt, thereby achieving exercise, and when the rope transmission device 4 rotates, it can drive the elastic rope 3 from the wire take-up body 2 to be wound on the rope transmission device 4, so that the elastic rope 3 is stretched out from the wire take-up body 2. At this time, the elastic rope 3 is stretched and has a certain elastic potential energy, which has a tendency to drive the rope transmission device 4 to rotate in the opposite direction.

[0039] When the handle 6 is stretched to the farthest end, the rope-winding action of the elastic rope 3 is completed. After completion, the person sitting on the seat cushion 8 moves back to the initial position to realize the rope-collecting action. During the movement process of completing the rope-collecting action, the elastic rope 3 contracts and drives the rope-pulling transmission device 4 to rotate in the opposite direction, thereby returning to the initial state and waiting for the next rope-drawing action to be completed.

[0040] The rope-pulling transmission device 4 includes a fixed seat fixedly mounted on the frame 11, on which a first mounting shaft 41 is mounted, on which a rope drum 42, a webbing drum 43 and a pulley 44 are rotatably mounted and fixedly connected, an end of the elastic rope 3 is mounted on the rope drum 42, the webbing is wound on the webbing drum 43, and a transmission belt is mounted on the pulley 44 to be connected to the resistance device 5.

[0041] See also Figure 1 and Figure 2 as well as Figures 3 to 5 As shown, during the rope-pulling exercise, the webbing connected to the handle 6 will drive the webbing reel 43 to rotate, thereby also driving the rope reel 42 and the pulley 44 to rotate. The rotation of the pulley 44 drives the elastic rope 3 from the take-up device body 2 to wind and stretch, so that the elastic rope 3 stores a certain elastic potential energy, preparing for contraction and recovery to the initial state. While the pulley 44 rotates, the movement resistance generated by the resistance device 5 is transmitted to the pulley 44, thereby overcoming the movement resistance generated by the resistance device 5 and causing the pulley 44 to rotate, thereby achieving the exercise effect.

[0042] The resistance device 5 includes a mounting base fixedly mounted on the frame 11, the mounting base is in a "U" shape, a second mounting shaft 51 is fixedly mounted on the mounting base, a flywheel 53 is rotatably mounted on the second mounting shaft 51, a resistance structure for generating movement resistance to the flywheel 53 is installed on the frame 11, and also includes an adjustment structure for adjusting the size of the movement resistance generated by the resistance structure to the flywheel 53.

[0043] See also Figures 5 to 7 As shown, in order to facilitate the elastic rope 3 to drive the rope drum 42 to rotate in the opposite direction to achieve contraction and rebound, the flywheel 53 can be driven in one direction, and a ratchet structure can be adopted, or the flywheel structure of a bicycle can be referred to, that is, when exercising and stretching, the flywheel 53 can be driven to rotate by the belt between the pulley 44 and the webbing disk 43, but the flywheel 53 cannot be driven to rotate in the opposite direction. It can be understood that at this time, the rope drum 42, the webbing disk 43 and the pulley 44 are driven to rotate under the elastic force of the elastic rope 3 without driving the flywheel 53 to rotate, and the webbing is driven to be wound up to restore the handle 6 to its initial state, thereby completing an exercise movement, and the rope drum 42 does not need to overcome the resistance generated by the resistance structure to rotate, so that the rebound is smoother.

[0044] The resistance structure includes a resistance ring 54 fixedly arranged on the outer circumferential surface of the flywheel 53, and also includes a rotating shaft 55 fixedly installed on the frame 11, on which a magnetic frame 56 adapted to the resistance ring 54 is rotatably installed, and a magnetic part 57 is fixedly installed on the surface of the magnetic frame 56 close to the resistance ring 54.

[0045] See also Figures 5 to 7 As shown, in the present embodiment, the resistance structure is a magnetic resistance mechanism, which utilizes magnetic force to realize the generation of motion resistance. Specifically, a resistance ring 54 is installed at the outer circumference of the flywheel 53. When rotating, the magnetic member 57 on the inner side of the magnetic frame 56 approaches or moves away from the resistance ring 54, and the motion resistance generated during the rotation acts on the resistance ring 54, and is also transmitted to the flywheel 53, thereby increasing the force required for the flywheel 53 to rotate. Through the transmission between the flywheel 53 and the pulley 44, the magnetic member 57 acts on the resistance ring 54 and the motion resistance of the flywheel 53 is transmitted to the pulley 44, thereby providing motion resistance for exercise. The resistance ring 54 may also be a magnetic ring body, and the magnetic member 57 is a magnet.

[0046] The adjustment structure includes a fixing plate 59 fixedly mounted on the frame 11 and a transmission plate 58 fixedly mounted on the end of the magnetic frame 56. A transmission rope 510 is fixedly mounted on the transmission plate 58. An adjustment knob 52 for adjusting the distance between the magnetic frame 56 and the resistance ring 54 is mounted on the other end of the transmission rope 510.

[0047] See also Figure 6 As shown, in order to achieve the up and down adjustment of the magnetic frame 56 to reduce or increase the distance between the magnetic member 57 and the resistance ring 54, a tension spring can be installed at the bottom of the transmission plate 58, and the other end of the tension spring is installed at the bottom of the fixed plate 59. A through hole is opened on the top of the fixed plate 59. The fixed plate 59 is "U"-shaped. The transmission rope 510 passes through the through hole and is connected to the adjustment knob 52. When it is necessary to increase the movement resistance, the adjustment knob 52 is turned to overcome the tension of the tension spring through the transmission rope 510, thereby driving the transmission plate 58 and the magnetic frame 56 to lift upward, and then drive the magnetic member 57 to approach the resistance ring. 54, shortening the distance between the magnetic member 57 and the resistance ring 54, and increasing the movement resistance when the flywheel 53 rotates. Conversely, in order to increase the distance between the magnetic member 57 and the resistance ring 54 and reduce the movement resistance, the adjusting knob 52 is rotated in the opposite direction, and the transmission plate 58 is driven downward under the tension of the tension spring, thereby driving the magnetic frame 56 and the magnetic member 57 to move away from the resistance ring 54, increasing the distance between the magnetic member 57 and the resistance ring 54, and reducing the movement resistance generated during use. The movement resistance is adjusted by turning the adjusting knob 52.

[0048] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An elastic wire take-up device, characterized in that: The invention comprises a wire take-up device body (2), wherein the wire take-up device body (2) comprises a lower shell (21) and an upper shell (22), wherein the lower shell (21) and the upper shell (22) form an installation chamber and can be detachably installed, wherein a roller assembly is installed in the installation chamber, wherein an elastic rope (3) is wound around the roller assembly, and an avoidance hole (27) is provided on the frame of the lower shell (21) and / or the frame of the upper shell (22), and the elastic rope (3) passes through the avoidance hole (27) and extends to the outside.

2. The elastic wire take-up device according to claim 1, characterized in that: The roller assembly comprises a plurality of first guide wheels (23) and a plurality of second guide wheels (24) respectively installed on both sides of the installation chamber, an elastic rope (3) is wound between the first guide wheels (23) and the second guide wheels (24), and the end of the elastic rope (3) located in the installation chamber is fixedly installed on the inner wall of the lower shell (21) or the upper shell (22).

3. The elastic wire take-up device according to claim 2, characterized in that: A first intermediate wheel (25) and a second intermediate wheel (26) are arranged between the first guide wheel (23) and the second guide wheel (24); when the elastic rope (3) is wound around the first guide wheel (23) and the second guide wheel (24), it is also wound around the first intermediate wheel (25) and the second intermediate wheel (26).

4. A rowing machine, characterized in that: The invention comprises a frame (1), wherein the frame (1) comprises a frame body (11) and a slide rail (12), wherein an elastic wire take-up device according to any one of claims 1 to 3 is fixedly mounted on the frame body (11), a pull rope transmission device (4) and a resistance device (5) are fixedly mounted on the frame body (11), the other end of the elastic rope (3) is mounted on the pull rope transmission device (4), the pull rope transmission device (4) and the resistance device (5) are transmission-connected, a webbing is also wound around the pull rope transmission device (4), a handle (6) for stretching exercise is fixedly mounted on the outer end of the webbing, a pedal (7) for foot contact is fixedly mounted on the frame body (11), and a seat cushion (8) is slidably mounted on the slide rail (12).

5. A rowing machine according to claim 4, characterized in that: The pull rope transmission device (4) comprises a fixed seat fixedly mounted on the frame (11), a first mounting shaft (41) being mounted on the fixed seat, a rope drum (42), a webbing drum (43) and a pulley (44) being rotatably mounted on the first mounting shaft (41) and fixedly connected to each other, an end of the elastic rope (3) being mounted on the rope drum (42), a webbing being wound on the webbing drum (43), and a transmission belt being mounted on the pulley (44) and connected to the resistance device (5).

6. A rowing machine according to claim 4, characterized in that: The resistance device (5) comprises a mounting seat fixedly mounted on the frame (11), a second mounting shaft (51) fixedly mounted on the mounting seat, a flywheel (53) rotatably mounted on the second mounting shaft (51), a resistance structure for generating movement resistance to the flywheel (53) mounted on the frame (11), and also comprises an adjustment structure for adjusting the size of the movement resistance generated by the resistance structure to the flywheel (53).

7. A rowing machine according to claim 6, characterized in that: The resistance structure includes a resistance ring (54) fixedly arranged on the outer circumferential surface of the flywheel (53), and also includes a rotating shaft (55) fixedly installed on the frame (11), and a magnetic frame (56) adapted to the resistance ring (54) is rotatably installed on the rotating shaft (55), and a magnetic member (57) is fixedly installed on the surface of the magnetic frame (56) close to the resistance ring (54).

8. A rowing machine according to claim 7, characterized in that: The adjustment structure comprises a fixing plate (59) fixedly mounted on the frame (11), and a transmission plate (58) fixedly mounted on the end of the magnetic frame (56), a transmission rope (510) fixedly mounted on the transmission plate (58), and an adjustment knob (52) for adjusting the distance between the magnetic frame (56) and the resistance ring (54) is mounted on the other end of the transmission rope (510).

9. A rowing machine according to claim 6, characterized in that: The mounting seat is in a "U" shape.

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