Transmission structure of power roller skate

Abstract

According to the transmission structure of the power roller skate, power transmission of the supporting wheels arranged front and back is achieved through the conveying belt, and the structure is simple. The device comprises a retaining wheel and at least three supporting wheels arranged front and back, one supporting wheel is a driving wheel, the retaining wheel and each supporting wheel rotate around the axis of the supporting wheel, the supporting wheel located in the middle is a middle supporting wheel, the supporting wheel in front of the middle supporting wheel is a front supporting wheel, and the supporting wheel behind the middle supporting wheel is a rear supporting wheel. The transmission belt bypasses the supporting wheels, the inner side of the transmission belt makes contact with the supporting wheels at the same time, and the retaining wheel makes contact with the outer side of the transmission belt. The axes of the rear supporting wheels or the axes of the front supporting wheels swing synchronously with the axis of the middle supporting wheel as the center. When the axes of the rear supporting wheels or the axes of the front supporting wheels swing around the axis of the middle supporting wheel, the transmission belt keeps in contact with the middle supporting wheel, and meanwhile the tightness degree of the transmission belt is not changed.

Description

Technical Field

[0001] This patent relates to a powered roller skate having a power device to drive the roller skate forward, and specifically to a transmission structure of the powered roller skate. Background Art

[0002] Roller skates can make people move faster and have good entertainment and practicality. With the development of electric systems, electric roller skates driven by motors came into being.

[0003] Conventional electric roller skates mostly use multiple rows of fixed wheels. When you lift your foot to walk, the sole is always straight, which is not comfortable. Later, a two-stage power roller skate appeared. The front shoe frame corresponding to the forefoot and the rear shoe frame corresponding to the backfoot are hinged together. The front shoe frame and the rear shoe frame can rotate relative to each other when walking, which greatly improves comfort. However, this structure mostly uses multi-stage gear series transmission to achieve the purpose of motor drive. Its structure is complex and heavy. Although some use belt drive, see Figure 1 As shown in FIG. 2, the middle support wheel 2 and the front support wheel 1 are driven by a first transmission belt 5, and the rear support wheel 3 and the middle support wheel 2 are driven by a second transmission belt 6. This structure requires two front and rear transmission belts, which must be staggered, and is also complex and bulky. Summary of the invention

[0004] This patent provides a transmission structure of powered roller skates, which uses a conveyor belt to achieve power transmission of each supporting wheel arranged in front and behind. The structure is simple, and when the axis of the rear supporting wheel or the axis of the front supporting wheel swings around the axis of the middle supporting wheel, the transmission belt maintains contact with each supporting wheel, and the tightness of the transmission belt remains unchanged.

[0005] In order to achieve the above technical objectives, the technical solution adopted by this patent is:

[0006] A transmission structure of a power roller skate, comprising a retaining wheel and at least three supporting wheels arranged in front and behind, one supporting wheel being a driving wheel, the retaining wheel and each supporting wheel rotating around their own axis, a supporting wheel located in the middle being a middle supporting wheel, a supporting wheel in front of the middle supporting wheel being a front supporting wheel, a supporting wheel behind the middle supporting wheel being a rear supporting wheel, a transmission belt passing around each supporting wheel, the inner side of the transmission belt being in contact with each supporting wheel at the same time, and the retaining wheel being in contact with the outer side of the transmission belt;

[0007] The axes of the rear supporting wheels or the axes of the front supporting wheels swing synchronously with the axis of the middle supporting wheel as the center; when the axes of the rear supporting wheels or the axes of the front supporting wheels swing around the axis of the middle supporting wheel, the transmission belt keeps in contact with the middle supporting wheel, and the tightness of the transmission belt remains unchanged.

[0008] As a further improved technical solution of this patent, it includes a rear shoe rack and a front shoe rack, and the front support wheel, the middle support wheel, and the rear support wheel are rotatably arranged on the front support wheel shaft, the middle support wheel shaft, and the rear support wheel shaft respectively; the retaining wheel is rotatably arranged on the retaining wheel shaft, and the retaining wheel shaft is arranged on the front shoe rack or the rear shoe rack;

[0009] The front supporting wheel axle and the middle supporting wheel axle are both arranged on the front shoe frame, the rear supporting wheel axle and the retaining wheel axle are arranged on the rear shoe frame, and the rear shoe frame is rotatably arranged on the front shoe frame around the axis of the middle supporting wheel axle; or, the rear supporting wheel axle and the middle supporting wheel axle are both arranged on the rear shoe frame, the front supporting wheel axle is arranged on the front shoe frame, and the front shoe frame is rotatably arranged on the rear shoe frame around the axis of the middle supporting wheel axle.

[0010] As a further improved technical solution of this patent, the wheel is kept close to the middle supporting wheel.

[0011] As a further improved technical solution of this patent, there are two groups of retaining wheels, supporting wheels and transmission belts, which are symmetrically arranged, and each group is located on both sides of the powered roller skates; the active supporting wheels in the two groups rotate synchronously driven by the same motor.

[0012] As a further improved technical solution of this patent, the transmission belt is a toothed belt, and each supporting wheel is a toothed wheel that cooperates with the toothed belt.

[0013] As a further improved technical solution of this patent, there are three supporting wheels.

[0014] As a further improved technical solution of this patent, there are 4 support wheels, including 2 rear support wheels.

[0015] The beneficial effects of this patent are:

[0016] A conveyor belt is used to realize the power transmission of each supporting wheel arranged in front and behind, and because the retaining wheel is in contact with the outer side of the transmission belt, when the axis of the rear supporting wheel or the axis of the front supporting wheel swings around the axis of the middle supporting wheel, the transmission belt can maintain contact with each supporting wheel including the supporting wheel, and the tightness of the transmission belt remains unchanged. A conveyor belt is used to connect all the supporting wheels, so that the linear speed of all the supporting wheels can be kept the same, and the structure is simple. It is suitable for power roller skates with a two-stage structure in which the front shoe frame and the rear shoe frame are hinged.

[0017] Of course, there can be multiple front support wheels or multiple rear support wheels, especially multiple rear support wheels can be provided to increase stability.

[0018] When the holding wheel is close to the middle supporting wheel, it can be further ensured that when the axes of the rear supporting wheels or the axes of the front supporting wheels swing around the axis of the middle supporting wheel, the transmission belt keeps in contact with the middle supporting wheel.

[0019] The retaining wheel can be located at any side of the front or rear of the middle supporting wheel.

[0020] The transmission mechanism can be used as a single group or as a combination of multiple groups.

[0021] There may be multiple front support wheels and multiple rear support wheels. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a side view of the transmission structure of the existing power roller skates.

[0023] Figure 2 It is a top view of the transmission structure of the existing power roller skates.

[0024] Figure 3 It is a three-dimensional diagram of the transmission structure of the powered roller skates of Example 1.

[0025] Figure 4 It is a side view of the transmission structure of the powered roller skates of Example 1 (the rear shoe frame / front shoe frame are in horizontal state).

[0026] Figure 5 This is the transmission structure of the powered roller skates of Example 1 (the rear shoe frame is lifted up to form a certain angle with the front shoe frame).

[0027] Figure 6 This is a schematic diagram of the transmission structure of the powered roller skates of Example 1 (the rear shoe frame / front shoe frame are in horizontal state).

[0028] Figure 7 This is a schematic diagram of the transmission structure of the powered roller skates of Example 1 (the rear shoe frame is lifted up and forms a certain angle with the front shoe frame).

[0029] Figure 8 It is a side view of the transmission structure of the powered roller skates of Example 2.

[0030] Fig. 9 This is a schematic diagram of the transmission structure of the powered roller skates of Example 3 (the rear shoe frame / front shoe frame are in horizontal state).

[0031] Fig.10 This is a schematic diagram of the transmission structure of the powered roller skates of Example 3 (the rear shoe frame is lifted up and forms a certain angle with the front shoe frame). DETAILED DESCRIPTION

[0032] The specific implementation of this patent is further described below according to the accompanying drawings:

[0033] Embodiment 1:

[0034] See also Figure 3-5The transmission structure of the power roller skates shown has two groups, left and right, symmetrically arranged on both sides of the power roller skates. The front support wheel 1, the middle support wheel 2, the rear support wheel 3, the retaining wheel 4, and the conveyor belt 7 in each group of the transmission mechanism are respectively rotatably arranged on the front support wheel shaft, the middle support wheel shaft, the rear support wheel shaft, and the retaining wheel shaft. The rear support wheel 3 includes a first rear support wheel 31 and a second rear support wheel 32, which are respectively rotatably arranged on the first rear support wheel shaft and the second rear support wheel shaft. The front support wheel shaft and the middle support wheel shaft are both arranged on the front shoe frame 100, and the rear support wheel shaft (including the first rear support wheel shaft and the second rear support wheel shaft) and the retaining wheel shaft are arranged on the rear shoe frame 200, and the rear shoe frame 200 is rotatably arranged on the front shoe frame 100 with the middle support wheel axis as the center. The transmission belt 7 passes around each support wheel, and the inner side of the transmission belt contacts each support wheel at the same time, and the retaining wheel contacts the outer side of the transmission belt. The retaining wheel 4 is close to the middle support wheel 2.

[0035] The retaining wheel and each supporting wheel rotate around their own axis. The two second rear supporting wheels 32 in the two sets of transmission structures are driving wheels, and the two driving wheels rotate synchronously under the drive of the same motor fixed on the rear shoe frame.

[0036] See also Figure 4-7 The rear shoe rack 200 rotates relative to the front shoe rack 100 with the middle supporting wheel axis as the center, and the rear supporting wheel axes and the retaining wheel axes swing synchronously with the middle supporting wheel axis as the center. The rear supporting wheel 3 and the retaining wheel 4 revolve around the middle supporting wheel axis, and the transmission belt 7 maintains contact with the middle supporting wheel 2 and the retaining wheel 4, and the tightness of the transmission belt 7 remains unchanged.

[0037] Embodiment 2:

[0038] See also Figure 8 The embodiment 2 shown is different from the embodiment 1 mainly in that there is only one rear support wheel 3 in each transmission mechanism. The two rear support wheels 3 in the two transmission structures are driving wheels, and the two driving wheels rotate synchronously under the drive of the same motor fixed on the rear shoe frame.

[0039] Embodiment 3:

[0040] See also Fig. 9 , 10 The embodiment 3 shown is different from the embodiment 1 or 2 mainly in that the retaining wheel axle is fixed on the front shoe frame, and the retaining wheel 4 does not revolve around the axis of the middle support wheel. The rear shoe frame rotates relative to the front shoe frame with the axis of the middle support wheel as the center, and the rear support wheel revolves around the axis of the middle support wheel, and the transmission belt 7 keeps in contact with the middle support wheel 2 and the retaining wheel 4, and the tightness of the transmission belt 7 remains unchanged.

[0041] The protection scope of this patent includes but is not limited to the above implementation methods. The protection scope of this patent shall be based on the claims. Any replacement, deformation, and improvement of this technology that can be easily thought of by technicians in this field shall fall within the protection scope of this patent.

Claims

1. A transmission structure of a power roller skate, characterized in that: It includes a retaining wheel and at least three supporting wheels arranged in front and behind, one supporting wheel is a driving wheel, the retaining wheel and each supporting wheel rotate around their own axis, a supporting wheel located in the middle is a middle supporting wheel, a supporting wheel in front of the middle supporting wheel is a front supporting wheel, and a supporting wheel behind the middle supporting wheel is a rear supporting wheel, a transmission belt passes around each supporting wheel, the inner side of the transmission belt contacts each supporting wheel at the same time, and the retaining wheel contacts the outer side of the transmission belt; The axes of the rear supporting wheels or the axes of the front supporting wheels swing synchronously with the axis of the middle supporting wheel as the center; when the axes of the rear supporting wheels or the axes of the front supporting wheels swing around the axis of the middle supporting wheel, the transmission belt keeps in contact with the middle supporting wheel, and the tightness of the transmission belt remains unchanged.

2. The transmission structure of the power roller skates according to claim 1, characterized in that: It includes a rear shoe rack and a front shoe rack, wherein the front supporting wheel, the middle supporting wheel and the rear supporting wheel are rotatably arranged on the front supporting wheel shaft, the middle supporting wheel shaft and the rear supporting wheel shaft respectively; the retaining wheel is rotatably arranged on the retaining wheel shaft, and the retaining wheel shaft is arranged on the front shoe rack or the rear shoe rack; The front supporting wheel axle and the middle supporting wheel axle are both arranged on the front shoe frame, the rear supporting wheel axle and the retaining wheel axle are arranged on the rear shoe frame, and the rear shoe frame is rotatably arranged on the front shoe frame around the axis of the middle supporting wheel axle; or, the rear supporting wheel axle and the middle supporting wheel axle are both arranged on the rear shoe frame, the front supporting wheel axle is arranged on the front shoe frame, and the front shoe frame is rotatably arranged on the rear shoe frame around the axis of the middle supporting wheel axle.

3. The transmission structure of the power roller skates according to claim 1 or 2, characterized in that: Keep the wheels close to the middle support wheels.

4. The transmission structure of the power roller skates according to claim 1 or 2, characterized in that: There are two groups of retaining wheels, supporting wheels and transmission belts, which are symmetrically arranged, and each group is located on both sides of the powered roller skates; the active supporting wheels in the two groups rotate synchronously under the drive of the same motor.

5. The transmission structure of the power roller skates according to claim 1 or 2, characterized in that: The transmission belt is a toothed belt, and each supporting wheel is a toothed wheel matched with the toothed belt.

6. The transmission structure of the power roller skates according to claim 1 or 2, characterized in that: There are 3 support wheels.

7. The transmission structure of the power roller skates according to claim 1 or 2, characterized in that: There are 4 support wheels, including 2 rear support wheels.

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