CN214763110U - But height-adjusting's comprehensive sports teaching device - Google Patents

Abstract

The utility model relates to the technical field of sports teaching articles, in particular to a comprehensive sports teaching device with adjustable height; the utility model provides a height-adjustable comprehensive physical education teaching device, a lever at the top can be used as a horizontal bar, and a load bearing structure which can be used for exercising upper limbs is also equipped, so that the upper limbs can be exercised by pulling a pull ring only through the upper limbs, driving a balancing weight to lift through a pull rope, overcoming the gravity of the balancing weight to do work, realizing the purpose of exercising the upper limbs, and facilitating the multifunctional comprehensive teaching; the height of the lever is adjustable, so that the lever is convenient to adapt to different user requirements; in addition, still set up tether ring and spacing rope, when the lever shifts up, thereby spacing rope tightens up gradually and indicates the user, avoids excessively rising.

Description

But height-adjusting's comprehensive sports teaching device

Technical Field

The utility model relates to a sports teaching articles for use technical field, concretely relates to but height-adjusting's comprehensive sports teaching device.

Background

Physical education is a purposeful and organized educational process performed according to certain plans and curriculum standards. The physical education is participated in by teachers and students, and the task is to teach students physical knowledge, technique and skill, strengthen their physique, cultivate their moral, will, quality, etc.

In the current sports teaching aid, the horizontal bar is comparatively common one. However, most of the existing horizontal bars are fixed in height and cannot be adjusted according to requirements; and the function is single, and the multifunctional teaching is inconvenient to use.

The inventor has therefore devised an integrated physical education apparatus with adjustable height to solve this problem.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims to solve the technical problem that the background art provided and provide a but height-adjusting's comprehensive sports teaching device.

(II) technical scheme

A height-adjustable comprehensive physical education teaching device comprises a hollow base, an internal thread cylinder, a screw, a lever and a load-bearing structure, wherein a transverse driven shaft is rotationally arranged in the hollow base, and the left end of the driven shaft extends out of the hollow base and is connected with a worm wheel; the left side of the hollow base is connected with an installation frame, a worm is arranged on the installation frame, the top end of the worm is externally connected with a hand wheel, and the worm is meshed with a worm wheel;

two first-class bevel gears are arranged on the left side and the right side of the driven shaft at intervals, and the first-class bevel gears are positioned in the hollow base and vertically meshed with a second-class bevel gear; the internal thread cylinder vertically penetrates through and is rotatably connected with the top of the hollow base, and the second-class bevel gear is arranged at the bottom end of the internal thread cylinder; the screw rod is screwed into the inner thread cylinder, and the top ends of the screw rod and the inner thread cylinder are connected through a lever;

the load structure is arranged on the lever and comprises a balancing weight, a pull rope, a wire wheel set and a pull ring; the balancing weight is positioned below the lever, and the top of the balancing weight is connected with a pull rope; the top surface of the lever is provided with a wire wheel set, and the pull rope upwards passes through the lever, bypasses the wire wheel set and then downwards passes through the lever again and is connected with a pull ring.

Preferably, the middle section of the lever is provided with a rubber sleeve, and the rubber sleeve is provided with an anti-skid bulge.

Preferably, the helix angle of the worm is less than the angle of friction of the worm wheel in contact with the worm.

Preferably, the load bearing structures are symmetrically arranged on the lever.

Preferably, the lever is provided with a through hole for the pull rope to pass through, and the through hole is smaller than the pull ring.

Preferably, the wire wheel set comprises two fixed pulleys arranged at left and right intervals.

Optionally, the device further comprises a rope tying ring and a limiting rope; the two ends of the lever are provided with rope tying rings, the top end of the limiting rope is connected with the rope tying rings, and the bottom end of the limiting rope is connected with the hollow base.

(III) advantageous effects

The utility model provides a height-adjustable comprehensive physical education teaching device, a lever at the top can be used as a horizontal bar, and a load bearing structure which can be used for exercising upper limbs is also equipped, so that the upper limbs can be exercised by pulling a pull ring only through the upper limbs, driving a balancing weight to lift through a pull rope, overcoming the gravity of the balancing weight to do work, realizing the purpose of exercising the upper limbs, and facilitating the multifunctional comprehensive teaching; the height of the lever is adjustable, so that the lever is convenient to adapt to different user requirements; in addition, still set up tether ring and spacing rope, when the lever shifts up, thereby spacing rope tightens up gradually and indicates the user, avoids excessively rising.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only for the purpose of the present invention, protecting some embodiments, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a block diagram of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a block diagram of another embodiment of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

101-hollow base, 102-driven shaft, 103-worm wheel, 104-worm, 105-mounting rack, 106-hand wheel;

201-a first-class bevel gear, 202-a second-class bevel gear, 203-an internal thread cylinder, 204-a screw rod, 205-a lever and 206-a rubber sleeve;

301-rope fastening ring, 302-limiting rope;

401-counterweight block, 402-pull rope, 403-wire wheel group and 404-pull ring.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the indicated orientation or positional relationship thereof is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Moreover, the terms "first," "second," and "third," if any, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

Referring to the attached drawings, the height-adjustable comprehensive physical education teaching device comprises a hollow base 101, an internal thread cylinder 203, a screw 204, a lever 205 and a load-bearing structure,

a transverse driven shaft 102 is rotatably mounted in the hollow base 101, and the left end of the driven shaft 102 extends out of the hollow base 101 and is connected with a worm gear 103; the left side of the hollow base 101 is connected with an installation frame 105, a worm 104 is installed on the installation frame 105, the top end of the worm 104 is externally connected with a hand wheel 106, and the worm 104 is meshed with a worm wheel 103;

two first-class bevel gears 201 are fixedly connected to the left and the right of the driven shaft 102 at intervals, and the first-class bevel gears 201 are positioned in the hollow base 101 and vertically meshed with a second-class bevel gear 202; the internal thread cylinder 203 vertically penetrates through and is rotatably connected with the top of the hollow base 101, and the second-class bevel gear 202 is fixedly connected with the bottom end of the internal thread cylinder 203; the screw 204 is screwed into the inner thread cylinder 203, and the top ends are connected through a lever 205;

the load structure is arranged on the lever 205 and comprises a balancing weight 401, a pull rope 402, a wire wheel set 403 and a pull ring 404; the balancing weight 401 is positioned below the lever 205, and the top of the balancing weight is connected with a pull rope 402; the lever 205 is provided with a wire wheel set 403 on the top surface, and a pull rope 402 passes through the lever 205 upward, passes around the wire wheel set 403, then passes through the lever 205 again downward and is connected with a pull ring 404.

The working principle of the device is as follows:

the lever 205 at the top can be used as a horizontal bar, and is also provided with a load bearing structure for exercising upper limbs, specifically, the pull ring 404 is pulled by the upper limbs, the balancing weight 401 is driven to lift through the pull rope 402, the purpose of exercising the upper limbs is realized by overcoming the gravity of the balancing weight 401 to do work, and multifunctional comprehensive teaching is facilitated;

referring to the drawings, the load bearing structures are symmetrically arranged on the lever 205, so that two upper limbs can exercise at the same time; the lever 205 is provided with a through hole which is convenient for the pull rope 402 to pass through, and the through hole is smaller than the pull ring 404, so that the pull ring 404 can be clamped below the through hole when no external force acts; the wire wheel set 403 includes two fixed pulleys arranged at left and right intervals, so that the pull ring 404 and the counterweight 401 can be conveniently separated by a certain distance.

The height of the lever 205 is adjustable, so that the lever can be conveniently adapted to different user requirements; specifically, the worm 104 is driven to rotate by the handwheel 106, and the worm 104 drives the worm wheel 103 to drive the driven shaft 102 to rotate, so that the first-class bevel gear 201 drives the second-class bevel gear 202 to drive the two internal thread cylinders 203 to synchronously rotate in the same direction; because the top ends of the screws 204 are connected into a whole through the levers 205, the screws 204 move relative to the internal thread cylinders 203 based on the thread effect so as to drive the levers 205 to lift and lower, and the height adjustment is realized.

In addition, it is suggested that a rubber sleeve 206 is installed at the middle section of the lever 205, and an anti-slip protrusion is processed on the rubber sleeve 206, so that the use is convenient for a user and the friction is increased.

It is proposed to use a self-locking worm gear, i.e. the helical angle of the worm 104 is smaller than the friction angle between the worm gear 103 and the worm 104, to further lock the position of the lever 205.

Example 2

On the basis of the example 1, the method comprises the following steps of,

also comprises a rope tying ring 301 and a limiting rope 302; two ends of the lever 205 are provided with a rope tying ring 301, the top end of the limiting rope 302 is connected with the rope tying ring 301, and the bottom end is connected with the hollow base 101.

Specifically, when the lever 205 moves upward, the limiting rope 302 is gradually tightened to prompt the user, so that excessive lifting is avoided; the limiting rope 302 and the tether ring 301 are tied, so that the effective tensioning length of the limiting rope 302 can be conveniently adjusted, and the highest position of the lever 205 moving upwards can be adjusted.

In the description herein, references to the description of the terms "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims (7)

1. A height-adjustable comprehensive physical education teaching device comprises a hollow base (101), an internal thread cylinder (203), a screw (204), a lever (205) and a load structure, and is characterized in that a transverse driven shaft (102) is rotatably arranged in the hollow base (101), and the left end of the driven shaft (102) extends out of the hollow base (101) and is connected with a worm gear (103); the left side of the hollow base (101) is connected with an installation rack (105), a worm (104) is arranged on the installation rack (105), the top end of the worm (104) is externally connected with a hand wheel (106), and the worm (104) is meshed with a worm wheel (103);

two first-class bevel gears (201) are arranged on the left side and the right side of the driven shaft (102) at intervals, and the first-class bevel gears (201) are positioned in the hollow base (101) and vertically meshed with a second-class bevel gear (202); the internal thread cylinder (203) vertically penetrates through and is rotatably connected with the top of the hollow base (101), and the second-class bevel gear (202) is arranged at the bottom end of the internal thread cylinder (203); the screw rod (204) is screwed into the inner thread cylinder (203), and the top ends of the screw rod and the inner thread cylinder are connected through a lever (205);

the load structure is arranged on the lever (205) and comprises a balancing weight (401), a pull rope (402), a wire wheel set (403) and a pull ring (404); the balancing weight (401) is positioned below the lever (205), and the top of the balancing weight is connected with a pull rope (402); the top surface of the lever (205) is provided with a wire wheel set (403), and the pull rope (402) upwards passes through the lever (205), bypasses the wire wheel set (403), then downwards passes through the lever (205) again and is connected with a pull ring (404).

2. The integrated physical education device with adjustable height of claim 1, wherein the lever (205) is provided with a rubber sleeve (206) at the middle section, and the rubber sleeve (206) is provided with an anti-slip projection.

3. The height-adjustable integrated physical education device according to claim 1, wherein the unwinding helix angle of the worm (104) is smaller than the friction angle of the worm wheel (103) in contact with the worm (104).

4. An integrated height adjustable physical education device according to claim 1, wherein the weight structures are symmetrically provided on the lever (205).

5. The height-adjustable integrated physical education device according to claim 1, wherein the lever (205) is provided with a through-hole for passing the pulling rope (402) therethrough, the through-hole being smaller than the pulling ring (404).

6. The height-adjustable integrated physical education device as claimed in claim 1, wherein the wire wheel set (403) includes two fixed pulleys disposed at left and right intervals.

7. The integrated physical education device with adjustable height according to claim 1, further comprising a rope tying ring (301) and a limiting rope (302); rope tying rings (301) are arranged at two ends of the lever (205), the top end of the limiting rope (302) is connected with the rope tying rings (301), and the bottom end of the limiting rope (302) is connected with the hollow base (101).

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