CN211599472U

CN211599472U - Plastic transmission wheel

Info

Publication number: CN211599472U
Application number: CN201922478346.3U
Authority: CN
Inventors: 王浩然
Original assignee: Taiyuan Baby Eagle Educational Supplies Co ltd
Current assignee: Shanxi hand doctor educational supplies Co.,Ltd.
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-09-29
Anticipated expiration: 2029-12-31

Abstract

The utility model relates to the field of model design, and particularly provides a plastic driving wheel, which comprises a driving wheel main body, a chute, a fixed protrusion and a central shaft hole; the spout sets up the outside of drive wheel main part, fixed protruding setting is in the central authorities of drive wheel main part, central shaft hole sets up fixed bellied top, the utility model discloses an above-mentioned structure has realized through the mode that sets up the cross fixed slot that central shaft hole can compatible male plastics cross, a word axle and thick circle axle, has widened the utility model discloses an use the scene, solved two important problems in the middle of the current plastics gear technology: firstly, solved plastic drive wheel prior art and generally little as the well aperture of well wheel, the pass is single, and is compatible little, only is applicable to and inserts 2mm, 2.5mm, the thin round axle of 3mm, and can not compatible insert about 5mm thick round axle and the problem of plastics word, cross axle. Secondly, the problems of small diameter and poor transmission speed change effect of the existing plastic transmission wheel are solved.

Description

Plastic transmission wheel

Technical Field

The utility model belongs to the technical field of the model design and specifically relates to a plastic drive wheel.

Background

In current domestic children DIY toy and scientific and technological model design and manufacture, the aperture of the plastic drive wheel that uses has 2mm, 2.5mm, 3mm, all transmits through inserting circular iron axle moreover, however this kind of setting mode has following 3 kinds of shortcomings:

1. the transmission aperture of the transmission wheel is generally small, the hole pattern is single, and the transmission wheel is only suitable for inserting iron shafts of 2mm, 2.5mm and 3mm, so that the compatibility is not strong;

2. the outer diameter of the driving wheel is generally small, and the diameter is generally 18-30 mm, so that the quick-acting effect is not ideal when the driving wheel is matched and used;

3. the driving wheels with different diameters are independent individuals and cannot be mutually clamped to realize the speed change selection of the driving wheels with different sizes.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a simple structure, use the wider plastic drive wheel of scene simultaneously.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a plastic driving wheel comprises a driving wheel main body, a chute, a fixed protrusion and a central shaft hole;

the sliding groove is arranged on the outer side of the driving wheel main body, the fixing protrusion is arranged in the center of the driving wheel main body, and the central shaft hole is arranged above the fixing protrusion.

Furthermore, the plastic driving wheel also comprises a combined bayonet;

the combined bayonet is arranged behind the corresponding position of the fixed protrusion on the back side of the driving wheel main body.

Further, the diameter of the central shaft hole ranges from 4.95mm to 5.00 mm.

Furthermore, the plastic driving wheel also comprises a cross-shaped fixing groove;

the cross fixing groove is arranged on the central shaft hole.

Furthermore, the plastic driving wheel also comprises an eccentric shaft jack;

the eccentric shaft insertion hole is provided at one side of the fixing protrusion.

Furthermore, the plastic driving wheel is characterized in that the driving wheel body, the sliding groove, the fixing protrusion and the central shaft hole are made of ABS or polypropylene.

The utility model adopts the above structure, have following several advantages:

1. realized central shaft hole through the mode that sets up the cross fixed slot, can compatible insert plastics cross axle, a word axle and thick circle axle, widened the utility model discloses a use the scene.

2. By means of the fixing protrusions 30 and the combined bayonets 50, the large, medium and small driving wheels can be clamped together (as shown in fig. 3), so that the selectable variable speed driving function is added.

3. Through setting up big, medium and small different external diameter drive wheels especially the mode of increaseing big wheel external diameter, can realize the variable speed transmission of different rates of bull wheel with medium wheel, steamboat, increased the transmission combination mode, promoted the transmission efficiency of drive wheel.

Drawings

Fig. 1 is a schematic structural view of an embodiment of a plastic transmission wheel according to the present invention;

fig. 2 is a schematic structural view of another embodiment of the plastic transmission wheel of the present invention;

fig. 3 is a schematic combination diagram of an embodiment of a plastic transmission wheel according to the present invention;

the number designations in the figures are: 10-a driving wheel main body, 20-chutes, 30-fixed protrusions, 40-a central shaft hole, 50-a combined bayonet, 60-a cross-shaped fixed groove and 70-an eccentric shaft jack.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

A plastic driving wheel, as shown in figure 1, comprises a driving wheel main body 10, a chute 20, a fixed protrusion 30 and a central shaft hole 40;

the sliding chute 20 is arranged at the outer side of the driving wheel main body 10, the fixed protrusion 30 is arranged at the center of the driving wheel main body 10, and the central shaft hole 40 is arranged above the fixed protrusion 30;

the central shaft hole 40 is used for fixing a transmission shaft passing through;

the fixing protrusion 30 is used for fixing the transmission wheels of the rest sizes, thereby realizing the effect of multi-stage speed change.

Further, as shown in fig. 2, the plastic transmission wheel further includes a combination bayonet 50;

the combined bayonet 50 is arranged at the rear of the corresponding position of the back side fixing lug 30 of the driving wheel main body 10;

the combination bayonet 50 is used to snap over the fixing protrusion 30 to fixedly connect a plurality of driving wheels (as shown in fig. 3).

Further, the diameter of the central axial bore 40 ranges from 4.95mm to 5.00 mm.

Further, as shown in fig. 1, the plastic transmission wheel further includes a cross fixing groove 60;

the cross fixing groove 60 is arranged on the central shaft hole 40;

the cross fixing groove 60 is used to fix a cross shaft and a straight shaft inserted from the center shaft hole 40.

Further, as shown in fig. 1, the plastic transmission wheel further includes an eccentric shaft insertion hole 70;

the eccentric shaft insertion hole 70 is provided at one side of the fixing protrusion 30;

the eccentric shaft insertion hole 70 is used for inserting a round bar as a rocking handle.

The utility model relates to an in the specific application scene, when the user needs the equipment the utility model discloses the time, the user stacks the drive wheel of each size together earlier, and the fixed prominent 30 cover of rear drive wheel establishes the combination bayonet 50 of the place ahead drive wheel this moment to fixed each drive wheel, later the user aims at the cross fixed slot 60 of each drive wheel again and inserts the cross fixed axle from central shaft hole 40, thereby fixes and establish ties together each drive wheel, thereby realizes the equipment of variable speed drive wheel (as shown in fig. 3).

In another application scenario of the present invention, the user removes the extra external driving wheel and inserts the round bar into the eccentric shaft insertion hole 70 to be used as the rocking handle.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships 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 should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 according to specific situations by those skilled in the art.

Claims

1. A plastic driving wheel is characterized by comprising a driving wheel main body, a sliding chute, a fixed protrusion and a central shaft hole;

2. A plastic drive wheel according to claim 1, wherein the diameter of said central axial bore is in the range of 4.95mm to 5.00 mm.

3. A plastic drive wheel according to claim 1, wherein said plastic drive wheel further comprises a combination bayonet;

4. A plastic drive wheel according to claim 1, wherein said plastic drive wheel further comprises a cross-shaped retaining groove;

the cross fixing groove is arranged on the central shaft hole and can be used for being inserted with a plastic cross shaft, a straight shaft and a round shaft in a compatible mode.

5. A plastic drive wheel according to claim 1, wherein said plastic drive wheel further comprises an eccentric shaft receptacle;

the eccentric shaft is disposed at one side of the fixing protrusion.

6. A plastic drive wheel according to claim 1, wherein the drive wheel body, the grooves, the fixing protrusions and the central shaft hole are made of ABS or polypropylene.