Spiral speed change device and kite wheel and fishing reel applying speed change device

Abstract

The utility model provides a spiral speed change device and a kite wheel and a fishing reel using the same, and relates to the technical field of speed change, the spiral speed change device comprises a gear shifting shaft, a shaft sleeve, a gear shifting claw and a ball, the gear shifting shaft is provided with a plurality of spirally arranged grooves, the shaft sleeve is provided with a plurality of arc-shaped grooves, and the ball sleeve is provided with a ball. The included angle between the radial symmetry axes of every two adjacent arc-shaped grooves is zero, a through hole is formed in each arc-shaped groove, each gear shifting claw is installed in the corresponding arc-shaped groove in a hinged mode, each ball is installed in the corresponding through hole, one end of each gear shifting claw is an abutting part, and the balls slide on the outer circumferential face of the gear shifting shaft or in the grooves. According to the gear shifting and speed changing device, gear shifting and speed changing are conducted through ingenious cooperation of the gear shifting shaft and the balls, the gear shifting shaft can rotate reversely, the problem that an existing speed changing device cannot achieve reverse gear shifting and speed changing is solved, and the gear shifting and speed changing efficiency is improved. And gear adjustment is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of speed change, in particular to a spiral speed change device and a kite reel and a fishing reel using the speed change device. Background Art

[0002] The kite reel and the fishing reel are used for reeling in and releasing the line respectively. In order to adjust the reeling speed, a speed change device is installed on the kite reel and the fishing reel. However, when using the existing speed change device, if the gear adjustment is completed and it is necessary to return to the original gear, the gear can only be adjusted to the last gear. After reaching the last gear, the existing speed change device is rotated again, and the existing speed change device returns to the first gear. It is necessary to adjust the gear from the first gear to the desired gear. That is, the existing speed change device can only adjust the gear in the forward direction and cannot adjust the gear in the reverse direction, which makes the gear adjustment more troublesome.

[0003] Therefore, there is a need for a spiral speed change device that solves the above problems and a kite reel and a fishing reel using the speed change device. Utility Model Content

[0004] The utility model provides a spiral speed change device and a kite reel and a fishing reel using the speed change device, which utilizes the ingenious cooperation between a shift shaft and a ball bearing to perform gear shifting and speed change. Compared with existing speed change devices, the cooperation between the shift shaft and the ball bearing is reversible, so that the shift shaft can rotate in the reverse direction, thus solving the problem that existing speed change devices cannot adjust gears and change speed in the reverse direction, and making gear adjustment more convenient.

[0005] A technical solution of the present invention is achieved as follows:

[0006] Screw-type speed change device, comprising:

[0007] A shift shaft, wherein a plurality of grooves are formed on the outer circumference of the shift shaft, and the grooves are arranged in a spiral shape;

[0008] A shaft sleeve, the shaft sleeve being sleeved on the shift shaft, the shaft sleeve being provided with a plurality of arcuate grooves uniformly distributed along the axial direction on the circumference of the shaft sleeve, the arcuate grooves corresponding to the grooves one by one, the angle between the radial symmetry axes of two adjacent arcuate grooves being zero, and a through hole being provided in each of the arcuate grooves along the radial direction;

[0009] The shift drive mechanism includes a plurality of shift claws and a plurality of ball bearings. Each of the shift claws is hingedly mounted in the corresponding arc-shaped groove, and each of the ball bearings is respectively mounted in the corresponding through hole. One end of the shift claw is a supporting portion, and the inner side of the supporting portion cooperates with the ball bearing. The ball bearings slide on the outer circumferential surface of the shift shaft or in the groove. The other end of the shift claw is a clutch portion, and the outer side of the clutch portion is a gear clutch end. A reset element is provided between the inner side of the clutch portion and the shaft sleeve.

[0010] As a preferred technical solution, the shift drive mechanism also includes a plurality of shift gears sleeved on the shaft sleeve, the shift gears corresponding one-to-one to the arc-shaped grooves, and the inner circumference of the shift gear is provided with a plurality of key grooves for engaging with or separating from the gear clutch end. When one of the balls slides on the outer circumference of the shift shaft, one of the gear clutch ends engages with the key groove of the corresponding shift gear, and the remaining balls all slide in the grooves, and the remaining gear clutch ends are separated from the key grooves of the corresponding shift gears.

[0011] As a preferred technical solution, the shift claw is installed in the corresponding arc-shaped groove through a hinge shaft, the supporting portion and the clutch portion are respectively arranged on both sides of the hinge shaft, and the hinge shaft is arranged parallel to the shift shaft.

[0012] The second technical solution of the present invention is achieved as follows:

[0013] The kite wheel comprises the spiral speed changing device.

[0014] The third technical solution of the present invention is achieved in this way:

[0015] A fishing reel comprises the spiral speed changing device.

[0016] By adopting the above technical solution, the beneficial effects of the utility model are:

[0017] Since the spiral transmission device includes a shift shaft, in the process of using this device, the shift shaft and the ball bearings are cleverly matched, and only one ball bearing is located in the corresponding groove. At this time, the abutment portion of the shift claw adapted to the ball bearing is not abutted by the ball bearing. Under the action of the reset element, the clutch portion of the shift claw extends out of the corresponding arc-shaped groove, and the remaining ball bearings all slide on the circumferential surface of the shift shaft, and the abutment portion of the corresponding shift claw is abutted by the ball bearings, and the clutch portions of the shift claws are all located in the corresponding arc-shaped grooves. When the shift shaft is rotated, different shift claws can be extended, thereby realizing gear shifting. In the utility model, the shift shaft and the ball bearings are cleverly matched to perform gear shifting. Compared with the existing speed change device, the matching of the shift shaft and the ball bearings is reversible, so that the shift shaft can rotate in the opposite direction, which solves the problem that the existing speed change device cannot reversely adjust gears and speed, and makes gear adjustment more convenient.

[0018] Since the shift drive mechanism also includes several shift gears, by rotating the shift shaft, the gear clutch ends of different shift claws are engaged with the key slots on the corresponding shift gears. Since the diameters of the several shift gears are the same, the speed ratio is changed, thereby achieving the speed change effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 Schematic diagram of the shift shaft structure;

[0022] Figure 3 Schematic diagram of the structure of the shaft sleeve;

[0023] Figure 4 A reference diagram of the state when one of the shift dogs is disengaged from the corresponding shift gear;

[0024] Figure 5 A reference diagram showing another shift dog engaged with a corresponding shift gear;

[0025] Figure 6 It is a structural diagram of the transmission connection block.

[0026] Among them: 1. shift shaft; 2. groove; 3. bushing; 4. arc-shaped groove; 5. through hole; 6. shift claw; 7. ball; 8. support part; 9. clutch part; 10. gear clutch end; 11. compression spring; 12. shift gear; 13. keyway; 14. articulated shaft; 15. radial symmetry axis of the arc-shaped groove. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] like Figures 1-6 As shown in common,

[0029] Screw-type speed change device, comprising:

[0030] The shift shaft 1 has a plurality of grooves 2 on its outer circumference, and the grooves 2 are arranged in a spiral shape.

[0031] The shaft sleeve 3 is sleeved on the shift shaft 1. A plurality of arc-shaped grooves 4 are evenly distributed along the axial direction on the circumference of the shaft sleeve 3. The arc-shaped grooves 4 correspond to the grooves 2 one by one. The angles between the radial symmetry axes of two adjacent arc-shaped grooves 4 are zero. A through hole 5 is provided in the radial direction in each arc-shaped groove 4.

[0032] The shift drive mechanism includes a plurality of shift claws 6 and a plurality of balls 7. Each shift claw 6 is hingedly mounted in a corresponding arc-shaped groove 4. Each ball 7 is respectively mounted in a corresponding through hole 5. One end of the shift claw 6 is a supporting portion 8. The inner side of the supporting portion 8 cooperates with the ball 7. The ball 7 slides on the outer circumferential surface of the shift shaft 1 or in the groove 2. The other end of the shift claw 6 is a clutch portion 9. The outer side of the clutch portion 9 is a gear clutch end 10. A reset element is provided between the inner side of the clutch portion 9 and the shaft sleeve 3. In the utility model, the reset element includes a compression spring.

[0033] The shift drive mechanism also includes a plurality of shift gears 12 sleeved on the shaft sleeve 3. The shift gears 12 correspond one-to-one to the arc-shaped grooves 4. The inner circumference of the shift gear 12 is provided with a plurality of key grooves 13 for engaging or separating with the gear clutch end 10. When a ball 7 slides on the outer circumference of the shift shaft 1, a gear clutch end 10 engages with the key groove 13 of the corresponding shift gear 12, and the remaining balls 7 slide in the groove 2, and the remaining gear clutch ends 10 are separated from the key grooves 13 of the corresponding shift gear 12.

[0034] The shift claw 6 is installed in the corresponding arc-shaped groove 4 through the hinge shaft 14 , and the supporting portion 8 and the clutch portion 9 are respectively arranged on both sides of the hinge shaft 14 . The hinge shaft 14 is arranged parallel to the shift shaft 1 .

[0035] The diameters of the shifting gears 12 vary.

[0036] A sleeve is sleeved on the shaft sleeve 3 for axially positioning the two shift gears 12 , and the sleeve is not marked in the figure.

[0037] Example 2:

[0038] The kite wheel includes the spiral speed change device in the first embodiment.

[0039] Example 3:

[0040] A fishing reel includes the spiral speed change device in the first embodiment.

[0041] In summary, the present invention utilizes the ingenious cooperation of the shift shaft and the ball bearing to perform gear shifting and speed change. Compared with the existing speed change device, the cooperation between the shift shaft and the ball bearing is reversible, so that the shift shaft can rotate in the reverse direction, which solves the problem that the existing speed change device cannot adjust gears and speed in the reverse direction, and makes gear adjustment more convenient.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A spiral transmission device, characterized in that: include: A shift shaft, wherein a plurality of grooves are formed on the outer circumference of the shift shaft, and the grooves are arranged in a spiral shape; A shaft sleeve, the shaft sleeve being sleeved on the shift shaft, the shaft sleeve being provided with a plurality of arcuate grooves uniformly distributed along the axial direction on the circumference of the shaft sleeve, the arcuate grooves corresponding to the grooves one by one, the angle between the radial symmetry axes of two adjacent arcuate grooves being zero, and a through hole being provided in each of the arcuate grooves along the radial direction; The shift drive mechanism includes a plurality of shift claws and a plurality of ball bearings. Each of the shift claws is hingedly mounted in the corresponding arc-shaped groove, and each of the ball bearings is respectively mounted in the corresponding through hole. One end of the shift claw is a supporting portion, and the inner side of the supporting portion cooperates with the ball bearing. The ball bearings slide on the outer circumferential surface of the shift shaft or in the groove. The other end of the shift claw is a clutch portion, and the outer side of the clutch portion is a gear clutch end. A reset element is provided between the inner side of the clutch portion and the shaft sleeve.

2. The helical transmission according to claim 1, characterized in that The shift drive mechanism also includes a plurality of shift gears sleeved on the shaft sleeve, the shift gears corresponding to the arc-shaped grooves one by one, and a plurality of key grooves for engaging with or separating from the gear clutch end are provided on the inner circumference of the shift gear. When one of the balls slides on the outer circumference of the shift shaft, one of the gear clutch ends engages with the key groove of the corresponding shift gear, and the remaining balls all slide in the groove, and the remaining gear clutch ends are separated from the key grooves of the corresponding shift gears.

3. The helical transmission according to claim 1, characterized in that The shift claw is installed in the corresponding arc-shaped groove through a hinge shaft, the supporting portion and the clutch portion are respectively arranged on both sides of the hinge shaft, and the hinge shaft is arranged parallel to the shift shaft.

4. Kite wheel, characterized in that, It comprises a spiral speed change device as described in any one of claims 1-3.

5. A fishing reel, characterized in that: It comprises a spiral speed change device as described in any one of claims 1-4.

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