CN212395760U - Upper limb tractor - Google Patents

Abstract

The utility model discloses an upper limbs tractor, including mount pad and the vertical stand of connecting on the mount pad, slewing mechanism is installed at the stand top, the slewing mechanism linkage has the horizontal pole to rotate in order to realize the horizontal pole, the horizontal pole both ends are connected with the pendulum rod in order to constitute back type pull rod, the pendulum rod lower extreme is connected with the stay cord, stay cord end-to-end connection has the handle, and effect through slewing mechanism restricts the rate of motion of back type pull rod to play the effect that the strain was prevented in the speed limit, let the user can play better exercise effect through slow at the uniform velocity hard.

Description

Upper limb tractor

Technical Field

The utility model relates to a tractor, more specifically say a bit, relate to an upper limbs tractor, belong to motion, body-building apparatus field.

Background

The upper limb tractor is the most common fitness equipment in the matched facilities of the residential quarter, belongs to the fitness equipment which is mainly used for exercising muscles and ligaments of the upper limbs of middle-aged and elderly people, can improve the range of motion of shoulder joints, enhances the strength and toughness of shoulder straps, and has better exercise effect on preventing and improving scapulohumeral periarthritis.

Upper limbs tractor on the present market mainly is to connect semicircular lever on the middle pillar, sets up two stay cords at the lever both ends, though can realize the pulling, realizes that old person's upper limbs muscle, ligament are taken exercise, but because simple leverage has following shortcoming: 1. for middle-aged and elderly people, especially people with pathological, strain and limited movement problems, when doing upper limb stretching exercise, if the speed control is not good, great muscle traction movement can be caused, and strain is easy to cause; 2. if the handle is used, a user can accidentally slip off the handle by one hand, and the handle is easy to accidentally injure himself or other people under the inertia effect; 3. although some upper limb retractors are provided with a plurality of using positions, each using position is independently used, and exercisers in different using positions cannot perform interactive operation and are lack of use pleasure.

SUMMERY OF THE UTILITY MODEL

The utility model relates to an overcome the problem among the prior art, provide and have and to realize carrying out the speed limit to the stay cord, avoid it to take place the overspeed motion, technical characterstic such as security height upper limbs tractor.

In order to achieve the above purpose, the utility model is realized by the following technical scheme:

the utility model relates to an upper limbs tractor, including mount pad and the vertical stand of connecting on the mount pad, slewing mechanism is installed at the stand top, the slewing mechanism linkage has the horizontal pole to rotate in order to realize the horizontal pole, the horizontal pole both ends are connected with the pendulum rod in order to constitute the type pull rod that returns, the pendulum rod lower extreme is connected with the stay cord, stay cord end-to-end connection has the handle.

Preferably, the rotating mechanism comprises a gear, a gear shaft, a left pendulum shaft and a right pendulum shaft, the gear is sleeved on the gear shaft, one end of the gear shaft is fixedly connected with the middle part of the cross rod, the other end of the gear shaft is rotatably connected with the front end surface of the upright post, the left pendulum shaft and the right pendulum shaft are respectively positioned at the left side and the right side of the gear and are fixedly connected on the front end surface of the upright post, the left pendulum shaft and the right pendulum shaft are respectively rotatably sleeved with a left pendulum and a right pendulum which are both in a V-shaped structure, the openings of the left pendulum and the right pendulum face the gear, and each opening end is positioned between the gear teeth of the gear, the radius of the addendum circle of the gear is larger than or equal to the distance from the center of the gear to the opening end, the radius of the root circle of the gear tooth is smaller than the distance from the center of the gear to the opening end, when the gear rotates by one tooth position, the left pendulum and the right pendulum can be contacted with the gear and swing along with the gear once.

Preferably, the cross bar is perpendicular to the upright post to form a cross shape, the swing rod and the cross bars at two ends of the swing rod form a V-shaped mechanism, and an included angle between the cross bar and the upright post is 45-60 degrees.

Preferably, there are two rotating mechanisms, which are respectively located on the front end face and the rear end face of the upright post.

Preferably, the front end face and the rear end face of the upright post are both connected with connecting rods, the front ends of the connecting rods are connected with limiting rods to form a T-shaped structure, and the limiting rods are located between the swing rods to control the swing amplitude of the swing rods.

Preferably, two ends of the limiting rod are bent upwards to form an arc shape.

Preferably, the two ends of the limiting rod are sleeved with anti-collision blocks.

Preferably, the two side faces of the opening end of the left pendulum and the right pendulum protrude outwards to form a cylindrical sliding block.

Preferably, when the cross bar is horizontal, the included angle between the swing rod at the left end and the left end of the limiting rod is 30 degrees, and the included angle between the swing rod at the right end and the right end of the limiting rod is 30 degrees.

Has the advantages that: the traditional upper limb tractor adopts a simple lever principle, is easy to cause the problems of hand drop, body injury and the like in use, and the rotating mechanism in the application ensures that the return pull rod does not have rapid acceleration and too fast movement, thereby avoiding the situation that a user is pulled; the traditional single-person use mode of the upper limb tractor is improved to be interactive for multiple persons through the structure of the combined arrangement of the return pull rods; the structure is simple, and the operation is flexible; the cost is low, the mass production can be realized, the large-scale popularization of the market is easy, and the market application scene is large.

Drawings

Fig. 1 is a complete machine assembly drawing of the utility model.

Fig. 2 is an overall view of the perspective effect of the belt rotating mechanism of the present invention.

Fig. 3 is a plan view of the present invention.

Fig. 4 is a drawing showing the rotation of the pull rod of the present invention.

Fig. 5 is a schematic view of the utility model used by a single person.

Fig. 6 is a schematic view of the utility model used by two persons.

Fig. 7 is an exploded view of the structure of the rotating mechanism of the present invention.

Fig. 8 is a schematic view of the operating state 1 of the rotating mechanism of the present invention.

Fig. 9 is a schematic view of the operating state 2 of the rotating mechanism of the present invention.

Fig. 10 is a schematic view of the operating state 3 of the rotating mechanism of the present invention.

Fig. 11 is a schematic view of the operating state 4 of the rotating mechanism of the present invention.

Fig. 12 is a schematic view of the operating state 5 of the rotating mechanism of the present invention.

In the drawings: 1, upright column; 2, mounting a base; 2.1 a rotating mechanism; 3.1 gear wheel; 3.2 gear shaft; 3.3, a left pendulum; 3.4 left pendulum shaft; 3.5 right pendulum; 3.6 right pendulum shaft; 4-fold type pull rod; 4.1 cross bars; 4.2 oscillating bar; 5, pulling a rope; 6, a handle; 7, a limiting rod; 8 crash pad.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "top", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", and the like are to be construed broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The first embodiment is as follows: as shown in fig. 1-12, this embodiment is an upper limb retractor, which includes a mounting base 2, a vertical column 1 is vertically connected to the mounting base 2, a rotating mechanism 2.1 is installed on the top of the vertical column 1, the rotating mechanism 2.1 is linked with a cross rod 4.1, the rotation of the cross rod 4.1 is realized by the rotating mechanism 2.1, two ends of the cross rod 4.1 are connected with swing rods 4.2, the cross rod 4.1 and the swing rods 4.2 at two ends thereof form a pull rod 4, the pull rod 4 is similar to an ox horn shape, the lower end of the swing rod 4.2 is connected with a pull rope 5, the end of the pull rope 5 is connected with a handle 6, and the left hand and the right hand respectively grasp one handle 6 to alternately pull, the utility model creatively adopts the rotating mechanism 2.1, the rotating mechanism 2.1 includes a gear 3.1, a gear shaft 3.2, a left pendulum shaft 3.4, a right pendulum shaft 3.6, a gear 3.1 is sleeved on the gear shaft 3.2, one end of the gear shaft is fixedly connected to, the other end of the gear shaft 3.2 is rotatably connected on the front end face of the upright post 1, so that the gear 3.1 is fixedly connected with the reverse pull rod 4, the gear 3.1 can rotate around the gear shaft 3.2, the left pendulum shaft 3.4 and the right pendulum shaft 3.6 are respectively positioned at the left side and the right side of the gear 3.1 and are fixedly connected on the front end face of the upright post 1, the left pendulum shaft 3.4 and the right pendulum shaft 3.6 are respectively rotatably sleeved with the left pendulum 3.3 and the right pendulum 3.5, the left pendulum shaft 3.4 and the right pendulum shaft 3.6 are immovable with the upright post 1, the left pendulum 3.3 and the right pendulum 3.5 can respectively rotate around the left pendulum shaft 3.4 and the right pendulum shaft 3.6, the left pendulum 3.3 and the right pendulum 3.5 are both in a V-shaped structure, the opening of the left pendulum 3.3 and the right pendulum shaft 3.5 faces the gear, each opening end is positioned between the gears 3.3, the gear teeth radius of the gear 3.3 is larger than the gear addendum circle or the gear radius is smaller than the gear radius of the central gear, and the gear radius is smaller than the central gear radius, every time the gear 3.3 rotates by one tooth position, the left pendulum 3.3 and the right pendulum 3.5 can be contacted with the gear 3.5 and swing once along with the tooth position, because the gear 1 rotates by the distance of one tooth, the left pendulum 3.3 and the right pendulum 3.5 on two sides swing once under the stress, and then swing back to the original position under the action of the gear 1, thereby playing the role of limiting the speed, the tooth distance of the gear 1 in the application is larger, and the specific size and the dimension can be selected according to the actual situation, and the application does not limit the dimension.

The mounting manner of mount 2 in this embodiment includes: firstly, ground installation: the expansion bolt is driven into the mounting hole of the mounting base 2; secondly, pre-buried installation: the embedded parts are well positioned and placed in the dug deep pit, the threaded parts are enabled to be exposed out of the ground, concrete is filled in the pit, after the concrete is solidified, the embedded bolts are sleeved in the mounting holes in the mounting base 2 and are fixed through nuts.

The principle of deceleration of the rotating mechanism 2.1 according to the invention will be explained by taking the example shown in fig. 1 and 8-12.

Process 1: as shown in fig. 1 and 8, the position of each component of the rotating mechanism 2.1 is schematically illustrated in a static state, at this time, no action occurs between the gear 3.1 and the left pendulum 3.3 and between the gear 3.1 and the right pendulum 3.5, and no force is transmitted, as shown in fig. 9, when a user holds the right handle 6 and pulls the right pull rope 5 with the right hand, at this time, the left hand only holds the left handle 6, the cross bar 4.1 rotates clockwise, that is, the reverse pull rod 4 drives the gear 3.1 to rotate clockwise around the gear shaft 3.2, when the tooth surface on the gear 3.1 contacts with the upper edge of the left pendulum 3.3 and the tooth surface on the gear 3.1 contacts with the lower edge of the right pendulum 3.5, the left pendulum 3.3 and the right pendulum 3.5 start to be acted by force, and the counterclockwise rotation of the left pendulum 3.3 around the left pendulum shaft 3.4 and the right pendulum 3.5 around the right pendulum shaft 3.6 are realized until the state as shown in fig. 10, and the upper edge of the right pendulum 3.5 is acted by the tooth surface of the gear 1, the left pendulum 3.3 and the right pendulum 3.5 stop anticlockwise rotating, the left pendulum 3.3 and the right pendulum 3.5 start to rotate clockwise in a reverse direction to the state shown in fig. 11 under the action of the tooth surface of the gear 1, then the right hand is stopped to pull the right pull rope 5, the left pendulum 3.3 and the right pendulum 3.5 rotate to the state shown in fig. 12 under the action of inertia, the upper edge of the left pendulum 3.3 and the lower edge of the right pendulum 3.5 are respectively contacted with the tooth surface of the gear 1, so that the left pendulum 3.3 and the right pendulum 3.5 stop clockwise moving, and then along with the clockwise rotation of the gear 1, the left pendulum 3.3 and the right pendulum 3.5 respectively start to move anticlockwise in a reverse direction around the left pendulum shaft 3.4 and the right pendulum shaft 3.6, and then the next cycle is started;

when a user holds the left handle 6 with the left hand and pulls the left pull rope 5, the gear moves reversely and anticlockwise, the movement principle is the same as the process 1, the rotating movement speed of the gear 1 is always limited by the swing angular speeds of the left pendulum 3.3 and the right pendulum 3.5, when the mass of the left pendulum 3.3 and the right pendulum 3.5 is increased, the reaction force of the swing inertia to the gear 1 is larger, the movement speed of the gear 1 is difficult to continuously increase due to the action of the left pendulum 3.3 and the right pendulum 3.5, and the traditional lever-driven upper limb tractor has the advantages of higher pulling force, too high swinging movement speed and easy damage to the muscle of the user.

In one embodiment, as shown in fig. 4, in order to limit the rotation angle of the pull rod 4 and avoid the use problem caused by an excessively large rotation angle, the front end surface and the rear end surface of the upright post 1 are both connected with a connecting rod 7.1, the front end of the connecting rod 7.1 is connected with a limiting rod 7 to form a T-shaped structure, and the limiting rod 7 is located between the swing rods 4.2 to control the swing amplitude of the swing rods.

In one embodiment, two ends of the limiting rod 7 are bent upwards to form an arc shape, and the swing rod 4.2 is actually drawn to swing when the pull-back type rod 4 moves, and the arc-shaped limiting rod 7 is adopted to cooperate, so that the pull-back type rod 4 stably impacts the limiting rod 7.

In one embodiment, the cross bar 4.1 is perpendicular to the upright post 1 to form a cross shape, the swing bar 4.1 and the cross bars 4.2 at two ends of the swing bar 4.1 form a V-shaped mechanism, an included angle between the cross bar 4.1 and the upright post 1 is 45-60 degrees, preferably 45 degrees, as shown in fig. 6, because the included angle between the cross bar 4.1 and the upright post 1 is 45 degrees, double interactive use can be realized, at the moment, two people are respectively located at the positions shown in fig. 6, the rotating mechanism 2.1 can prevent safety problems caused by great difference between strength and limb tolerance speed of two people exercising, as shown in fig. 3, the four swing bars 4.1 are in a positive X shape when viewed from the top surface, so that the same effect can be ensured no matter for one person or two persons when using, and according to the principle, the plurality of the pull bars 4 in a shape of a plurality of loops are combined according to a.

In one embodiment, the two rotating mechanisms 2.1 are respectively arranged on the front end surface and the rear end surface of the upright post 1, so that two persons can use the upright post at the same time, and due to the structural principle of the rotating mechanisms 2.1, a plurality of pull rods 4 can be combined properly, so that the upright post is suitable for multiple persons.

In one embodiment, when the cross bar 4.1 is horizontal, the included angle between the swing rod 4.2 at the left end and the left end of the limiting rod 7 is 30 degrees, and the included angle between the swing rod 4.2 at the right end and the right end of the limiting rod 7 is 30 degrees, so that the rotating angle of the pull rod 4 conforms to the comfortable range of swinging and swinging of the arm of a human body, the problem of muscle strain can be solved, and the problem of exercise is not easy to be caused.

When a single person exercises, the person is in the position shown in figure 5, the two hands of the exerciser respectively hold one handle 6, the two hands alternately pull the pull rope 5, meanwhile, the rotating mechanism 2.1 decelerates the pulling action, and the user can correspondingly stretch the arm, the shoulder muscle ligament and each joint in the process of slowly exerting force, so that the best effect of the exercise can be achieved.

In one embodiment, the two side faces of the open ends of the left pendulum 3.3 and the right pendulum 3.5 are respectively protruded outwards to form a cylindrical sliding block, the cylindrical sliding blocks act on the tooth surface of the gear 3.1, friction force is small, matching is more efficient, the open ends of the left pendulum 3.3 and the right pendulum 3.5 act on the tooth surface of the gear 3.1 conveniently, and operation is smooth.

Finally, it should be noted that the present invention is not limited to the above embodiments, and many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the invention should be considered as within the scope of the invention.

Claims (9)

1. The utility model provides an upper limbs tractor, includes mount pad (2) and vertical stand (1) of connecting on mount pad (2), its characterized in that: slewing mechanism (2.1) are installed at stand (1) top, slewing mechanism (2.1) linkage has horizontal pole (4.1) to rotate in order to realize horizontal pole (4.1), horizontal pole (4.1) both ends are connected with pendulum rod (4.2) in order to constitute back type pull rod (4), pendulum rod (4.2) lower extreme is connected with stay cord (5), stay cord (5) end-to-end connection has handle (6).

2. The upper limb retractor according to claim 1, wherein: the rotating mechanism (2.1) comprises a gear (3.1), a gear shaft (3.2), a left pendulum shaft (3.4) and a right pendulum shaft (3.6), the gear (3.1) is sleeved on the gear shaft (3.2), one end of the gear shaft (3.2) is fixedly connected to the middle of the cross rod (4.1), the other end of the gear shaft is rotatably connected to the front end face of the upright post (1), the left pendulum shaft (3.4) and the right pendulum shaft (3.6) are respectively positioned on the left side and the right side of the gear (3.1) and fixedly connected to the front end face of the upright post (1), the left pendulum shaft (3.4) and the right pendulum shaft (3.6) are respectively rotatably sleeved with a left pendulum (3.3) and a right pendulum (3.5), the left pendulum (3.3) and the right pendulum (3.5) are both in a V-shaped structure, the openings of the left pendulum (3.3) and the right pendulum shaft (3.5) face the gear, each is positioned at the gear teeth of the gear (3.3), and the radius of the gear teeth of the gear (3.3) is larger than the tooth top of the gear, the radius of the root circle of the gear (3.3) is smaller than the distance from the center of the gear to the opening end, and when the gear (3.3) rotates by one tooth position, the left pendulum (3.3) and the right pendulum (3.5) can be in contact with the gear (3.5) and swing along with the gear once.

3. The upper limb retractor according to claim 1 or 2, wherein: the cross-shaped swing rod is characterized in that the cross-shaped swing rod (4.1) is perpendicular to the upright post (1), the swing rod (4.2) and the cross-shaped swing rod (4.1) at two ends of the swing rod form a V-shaped mechanism, and the included angle between the cross-shaped swing rod (4.1) and the upright post (1) is 45-60 degrees.

4. The upper limb retractor according to claim 2, wherein: the number of the rotating mechanisms (2.1) is two, and the two rotating mechanisms are respectively positioned on the front end surface and the rear end surface of the upright post (1).

5. The upper limb retractor according to claim 4, wherein: all be connected with connecting rod (7.1) on terminal surface and the rear end face before stand (1), connecting rod (7.1) front end is connected with gag lever post (7) in order to constitute T shape structure, gag lever post (7) are located between pendulum rod (4.2) with control pendulum rod (4.2) amplitude of oscillation.

6. The upper limb retractor according to claim 5, wherein: two ends of the limiting rod (7) are bent upwards to form an arc shape.

7. The upper limb retractor according to claim 5 or 6, wherein: and two ends of the limiting rod (7) are sleeved with anti-collision blocks (8).

8. The upper limb retractor according to claim 4, 5 or 6, wherein: two side surfaces of the opening ends of the left pendulum (3.3) and the right pendulum (3.5) are respectively protruded outwards to form a cylindrical sliding block.

9. The upper limb retractor according to claim 4, 5 or 6, wherein: when the cross rod (4.1) is horizontal, the included angle between the swing rod (4.2) at the left end and the left end of the limiting rod (7) is 30 degrees, and the included angle between the swing rod (4.2) at the right end and the right end of the limiting rod (7) is 30 degrees.

Images