Deceleration structure for cable winding device and cable winding device

Abstract

The utility model discloses a speed reduction structure for a cable winding device and the cable winding device, and relates to the field of cable winding devices.The speed reduction structure for the cable winding device comprises a support, a first roller, a second roller and a gear set, and the first roller and the second roller are in transmission connection through the gear set; the first roller and the second roller are rotatably arranged on the bracket; a cable on the cable winding device is wound out between the first rolling wheel and the second rolling wheel, and the first rolling wheel and the second rolling wheel are both in contact with the cable. According to the speed reduction structure for the cable winding device, the cable take-up speed is more uniform, the stability is better, and the safety is higher.

Description

Technical Field

[0001] The utility model relates to the field of cable winding devices, in particular to a deceleration structure for a cable winding device and a cable winding device. Background Art

[0002] At present, in order to make the storage and use of cables more convenient, cable storage machines are used. When the cables are pulled out of the cable storage machine and used, the cable storage machine can automatically retract the cables, which is highly efficient. However, the existing cable storage machines have the following problems: 1. Some cable storage machines lack a deceleration structure, and the speed of retracting the cables is too fast, which is easy to hurt the human body and damage other items, and is highly dangerous; 2. The deceleration structure of some cable storage machines slows down the rotation speed of the wheel by friction to achieve the purpose of deceleration. As the related accessories wear, the friction force becomes smaller and smaller, and the deceleration effect becomes worse. In addition, the deceleration method of deceleration by friction will produce abnormal noise, the speed of retracting the cables is not uniform, and there will be heating. When the heating is serious, the parts that rub against each other are easy to stick together, resulting in the cable cannot be pulled out or retracted, affecting the normal use of the cable storage machine; 3. Some cable storage machines adopt a deceleration structure based on the damping principle. The faster the speed of retracting the cables, the greater the damping to achieve the purpose of deceleration. However, after working for a long time, the damper will heat up and grease leakage is likely to occur. The related accessories are easily deformed due to high temperature, which makes the deceleration effect worse or even ineffective. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a deceleration structure for a cable winding device and a cable winding device, so that the speed of retracting the cable is more uniform, the stability is better, and the safety is higher.

[0004] The utility model is implemented by the following technical solutions:

[0005] In the first aspect, the utility model provides a deceleration structure for a cable winding device, comprising a bracket, a first roller, a second roller and a gear group, wherein the first roller and the second roller are connected by a transmission via the gear group, and the first roller and the second roller are rotatably arranged on the bracket; the cable on the cable winding device is wound out from between the first roller and the second roller, and the first roller and the second roller are both in contact with the cable.

[0006] Preferably, two gear sets are included, one end of the first roller and the second roller are transmission connected via one of the gear sets, and the other end of the first roller and the second roller are transmission connected via the other gear set.

[0007] Preferably, the gear sets include two large gears and two small gears; wherein the two small gears are meshed for transmission, the two large gears are connected through the two small gears, one of the large gears is connected to the first roller and rotates synchronously, and the other large gear is connected to the second roller and rotates synchronously.

[0008] Preferably, the first roller and the second roller both include a soft rubber layer, and the soft rubber layers of the first roller and the second roller are in contact with the cable.

[0009] Preferably, the first roller and the second roller are both provided with an annular groove, and the cross section of the groove is arc-shaped; the cable on the cable winding device is wound out from between the groove of the first roller and the groove of the second roller.

[0010] Preferably, two first bearings and two second bearings are provided on the bracket, two ends of the first roller are respectively provided on the two first bearings, and two ends of the second roller are respectively provided on the two second bearings.

[0011] Preferably, two accommodating cavities are provided on the bracket, and two through holes are provided on the wall of each of the accommodating cavities; the gear groups and the accommodating cavities are arranged in the accommodating cavities in a one-to-one correspondence, one end of the first roller and the second roller is connected to the corresponding gear group through the two through holes of one of the accommodating cavities, and the other end of the first roller and the second roller is connected to the corresponding gear group through the two through holes of the other accommodating cavities; each of the accommodating cavities is provided with a cover, and the corresponding accommodating cavity can be opened and closed by opening and closing the cover.

[0012] Preferably, the first roller and the second roller both include a rotating shaft; ends of the rotating shafts of the first roller and the second roller are both clamped and connected to corresponding large gears.

[0013] Preferably, the bracket includes a first part and a second part, and the first part and the second part are detachably connected; one end of the first roller and the second roller is arranged on the first part, and the other end of the first roller and the second roller is arranged on the second part.

[0014] In a second aspect, the utility model provides a cable winding device, comprising the deceleration structure for the cable winding device as described above.

[0015] Compared with the prior art, the beneficial effect of the utility model is that the deceleration structure for the cable winding device of the utility model is provided with a first roller and a second roller, and the cable on the cable winding device is wound out from between the first roller and the second roller. When the cable pulled out by the cable winding device is used up, the cable needs to be retracted. In the process of retracting the cable, the length and speed of the retracted cable are controlled by the rotation of the first roller and the second roller, so that the speed of retracting the cable is more uniform, more stable and safer. In addition, the first roller and the second roller are connected by a gear set transmission, and the gear set can consume a part of the energy, thereby further playing a role of deceleration, and the deceleration structure operates more stably. The cable winding device of the utility model also has the above advantages because it adopts the deceleration structure for the cable winding device of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a cable winding device in one embodiment of the utility model;

[0017] Figure 2 It is a schematic diagram of the disassembled parts of a deceleration structure for a cable winding device in one embodiment of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the cable winding device after the cover is removed in one embodiment of the utility model;

[0019] Figure 4 for Figure 3 A magnified view of middle;

[0020] Figure 5 This is a partial structural schematic diagram of a bracket in one embodiment of the utility model;

[0021] Figure 6 It is a schematic diagram of a large gear connected to the first roller or the second roller in one embodiment of the utility model.

[0022] Figure numerals: 1. bracket; 2. first roller; 3. second roller; 4. gear set; 5. large gear; 6. small gear; 7. soft rubber layer; 8. groove; 9. first bearing; 10. second bearing; 11. accommodating chamber; 12. through hole; 13. cover; 14. first part; 15. second part. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0024] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0026] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0027] Reference Figures 1 to 4 A preferred embodiment of the deceleration structure for a cable winding device in the utility model comprises a bracket 1, a first roller 2, a second roller 3 and a gear set 4, the first roller 2 and the second roller 3 are connected by transmission through the gear set 4, and the first roller 2 and the second roller 3 are rotatably arranged on the bracket 1; the cable on the cable winding device is wound out from between the first roller 2 and the second roller 3, and the first roller 2 and the second roller 3 are both in contact with the cable.

[0028] The deceleration structure for a cable winding device of the utility model is provided with a first roller 2 and a second roller 3. The cable on the cable winding device is wound out from between the first roller 2 and the second roller 3. When the cable pulled out by the cable winding device is used up, the cable needs to be retracted. During the process of retracting the cable, the length and speed of the retracted cable are controlled by rotating the first roller 2 and the second roller 3, so that the speed of retracting the cable is more uniform, the stability is better, and the safety is higher. In addition, the first roller 2 and the second roller 3 are connected by a gear set 4, and the gear set 4 can consume a part of the energy, thereby further playing a role of deceleration, and the deceleration structure operates more stably.

[0029] As a preferred embodiment of the deceleration structure for the cable winding device in the utility model, it may also have the following additional technical features:

[0030] In an optional embodiment, both the first roller 2 and the second roller 3 may be in close contact with the cable, so that the process of retracting the cable is more stable and more reliable.

[0031] In an optional embodiment, the deceleration structure for the cable winding device includes two gear sets 4, one end of the first roller 2 and the second roller 3 are connected by one of the gear sets 4, and the other end of the first roller 2 and the second roller 3 is connected by the other gear set 4. In this way, on the one hand, the rotation process of the first roller 2 and the second roller 3 will be more stable. On the other hand, compared with only setting the gear set 4 at one end of the first roller 2 and the second roller 3, setting the gear set 4 at both ends of the first roller 2 and the second roller 3 can consume more energy, further improve the deceleration effect of the deceleration structure, and make the operation of the deceleration structure more stable. In other embodiments, the deceleration structure for the cable winding device may include a gear set 4, one end of the first roller 2 and the second roller 3 is connected by the gear set 4, and the other end of the first roller 2 and the second roller 3 is rotatably connected and arranged on the bracket 1.

[0032] In the present invention, the specific structure of the gear set 4 is not limited and can be configured according to actual needs. Figure 4 In an optional embodiment, the gear set 4 includes two large gears 5 and two small gears 6; wherein the two small gears 6 are meshed and driven, and the two large gears 5 are connected through the two small gears 6, wherein one large gear 5 is connected to the first roller 2 and rotates synchronously, and the other large gear 5 is connected to the second roller 3 and rotates synchronously. With the above structure, the structure is simple, easy to assemble, and stable in operation. In other embodiments, the total number of large gears 5 and small gears 6 can be other numbers, as long as the total number of large gears 5 and small gears 6 is an even number, the first roller 2 and the second roller 3 can rotate in opposite directions and at the same speed. For example, there can be two large gears 5; two large gears 5 and four small gears 6; two large gears 5 and six small gears 6; or other numbers of large gears 5 and other numbers of small gears 6 can be matched. In other embodiments, the gears of the gear set 4 can be of the same size, the gears of the gear set 4 can be of different sizes, or the gears of the gear set 4 can be partially of the same size. It can be set according to actual needs and is not limited thereto.

[0033] It is understandable that in the process of pulling out and retracting the cable, the cable will contact the first roller 2 and the second roller 3. Over time, the cable is prone to wear. Figure 6In an optional embodiment, the first roller 2 and the second roller 3 both include a soft rubber layer 7, and the soft rubber layer 7 of the first roller 2 and the second roller 3 is in contact with the cable. Thus, by providing the soft rubber layer 7, the damage to the cable during the pulling out and retracting process can be reduced. In addition, since the soft rubber layer 7 has a certain elasticity, the first roller 2 and the second roller 3 are less likely to get stuck on the cable, making the pulling out and retracting of the cable smoother. In other embodiments, the first roller 2 and the second roller 3 may not include the soft rubber layer 7; other suitable material components may be used to replace the soft rubber layer 7, but are not limited thereto.

[0034] In an optional embodiment, an annular groove 8 is provided on both the first roller 2 and the second roller 3, and the cross section of the groove 8 is arc-shaped; the cable on the cable winding device is wound out from between the groove 8 of the first roller 2 and the groove 8 of the second roller 3, so that the groove 8 on the first roller 2 and the second roller 3 can limit the sliding of the cable, making the process of pulling out and retracting the cable more stable. In addition, the groove 8 with an arc-shaped cross section can better fit the outer contour of the cable, which can reduce the wear of the cable during the pulling out and retracting process and make the pulling out and retracting of the cable smoother. In other embodiments, the cross section of the groove 8 can be set in other shapes, but it is not limited to this. In other embodiments, the annular groove 8 may not be provided on the first roller 2 and the second roller 3.

[0035] Reference Figure 2 In an optional embodiment, two first bearings 9 and two second bearings 10 are provided on the bracket 1, and the two ends of the first roller 2 are respectively provided on the two first bearings 9, and the two ends of the second roller 3 are respectively provided on the two second bearings 10. With the above structure, by providing the first bearing 9 and the second bearing 10, the rotation of the first roller 2 and the second roller 3 is more flexible, which can reduce wear and reduce the occurrence of jams, and improve the durability of the reduction structure. In addition, the gears can be prevented from being offset, so that the reduction structure can operate normally and have better stability. In other embodiments, the first bearing 9 and the second bearing 10 may not be provided.

[0036] It is understandable that when foreign matter is attached to the gear set 4, it will affect the normal operation of the gear set 4. Figure 4 and Figure 5In an optional embodiment, two accommodating chambers 11 are provided on the bracket 1, and two through holes 12 are provided on the wall of each accommodating chamber 11; the gear set 4 is arranged in the accommodating chamber 11 in a one-to-one correspondence with the accommodating chamber 11, one end of the first roller 2 and the second roller 3 are connected to the corresponding gear set 4 through the two through holes 12 of one of the accommodating chambers 11, and the other end of the first roller 2 and the second roller 3 are connected to the corresponding gear set 4 through the two through holes 12 of the other accommodating chamber 11; a cover 13 is provided on each accommodating chamber 11, and the corresponding accommodating chamber 11 can be opened and closed by opening and closing the cover 13. With the above structure, the gear set 4 is arranged in the accommodating chamber 11, which can prevent foreign impurities from being attached to the gear set 4, thereby ensuring the normal operation of the gear set 4. When the gear set 4 needs to be disassembled, the cover 13 is opened, and after the disassembly and assembly are completed, the cover 13 is covered, and the gear set 4 can be effectively protected. In other embodiments, the bracket 1 may not be provided with an accommodating chamber 11.

[0037] Reference Figure 6 In an optional embodiment, the first roller 2 and the second roller 3 both include a rotating shaft; the ends of the rotating shafts of the first roller 2 and the second roller 3 are clamped and connected with the corresponding large gear 5, so that when the rotating shafts of the first roller 2 and the second roller 3 rotate, the large gear 5 can be driven to rotate. The above structure is simple and easy to disassemble and assemble. In other embodiments, the ends of the rotating shafts of the first roller 2 and the second roller 3 can be welded to the corresponding large gear 5 or connected by screws or clamped by a clamping structure, or the ends of the rotating shafts of the first roller 2 and the second roller 3 can be connected to the corresponding large gear 5 by other suitable connection methods, and are not limited thereto.

[0038] In an optional embodiment, the bracket 1 includes a first part 14 and a second part 15, and the first part 14 and the second part 15 are detachably connected; one end of the first roller 2 and the second roller 3 is arranged on the first part 14, and the other end of the first roller 2 and the second roller 3 is arranged on the second part 15. The above structure, on the one hand, makes it easier to disassemble and assemble the first roller 2 and the second roller 3, and the disassembly and assembly efficiency is high. On the other hand, when the first part 14 or the second part 15 of the bracket 1 is damaged, only the corresponding damaged part needs to be replaced, and the entire bracket 1 does not need to be replaced, saving maintenance costs. In other embodiments, the bracket 1 can be an integrated structure.

[0039] Under the premise that no conflict occurs, those skilled in the art may freely combine and superimpose the above-mentioned additional technical features.

[0040] The utility model also provides a cable winding device, including the above-mentioned deceleration structure for the cable winding device. Since the cable winding device includes the above-mentioned deceleration structure for the cable winding device, when the cable pulled out by the cable winding device is used up, the cable needs to be retracted. During the process of retracting the cable, the length and speed of the retracted cable are controlled by rotating the first roller 2 and the second roller 3, so that the speed of retracting the cable is more uniform, stable and safe. In addition, the first roller 2 and the second roller 3 are connected by the gear group 4, and the gear group 4 can consume a part of the energy, thereby further playing a role of deceleration, and the deceleration structure operates more stably.

[0041] The cable winding device generally includes a winding wheel, a spiral spring and other structures, which are well known to those skilled in the art and will not be described in detail herein.

[0042] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A deceleration structure for a cable winding device, characterized in that: It includes a bracket, a first roller, a second roller and a gear set, wherein the first roller and the second roller are connected by transmission through the gear set, and the first roller and the second roller are rotatably arranged on the bracket; The cable on the cable winding device is wound out from between the first roller and the second roller, and both the first roller and the second roller are in contact with the cable.

2. The deceleration structure for a cable winding device according to claim 1, characterized in that: It comprises two gear sets, one end of the first roller and the second roller are connected by transmission through one of the gear sets, and the other end of the first roller and the second roller are connected by transmission through the other gear set.

3. The deceleration structure for a cable winding device according to claim 1, characterized in that: The gear sets each include two large gears and two small gears; Among them, two small gears are meshed and transmitted, and two large gears are connected through two small gears, one of the large gears is connected to the first roller and rotates synchronously, and the other large gear is connected to the second roller and rotates synchronously.

4. The deceleration structure for a cable winding device according to claim 1, characterized in that: The first roller and the second roller both include a soft rubber layer, and the soft rubber layers of the first roller and the second roller are in contact with the cable.

5. The deceleration structure for a cable winding device according to claim 1, characterized in that: The first roller and the second roller are both provided with an annular groove, and the cross section of the groove is in an arc shape; The cable on the cable winding device is wound out from between the groove of the first roller and the groove of the second roller.

6. The deceleration structure for a cable winding device according to claim 1, characterized in that: The bracket is provided with two first bearings and two second bearings, the two ends of the first roller are respectively provided on the two first bearings, and the two ends of the second roller are respectively provided on the two second bearings.

7. The deceleration structure for a cable winding device according to claim 2, characterized in that: The bracket is provided with two accommodating cavities, and the wall of each accommodating cavity is provided with two through holes; The gear sets and the accommodating cavities are arranged in the accommodating cavities in a one-to-one correspondence, one end of the first roller and the second roller are respectively connected to the corresponding gear set through the two through holes of one of the accommodating cavities, and the other ends of the first roller and the second roller are respectively connected to the corresponding gear set through the two through holes of the other accommodating cavities; Each of the accommodating cavities is provided with a cover, and the corresponding accommodating cavity can be opened and closed by opening and closing the cover.

8. The deceleration structure for a cable winding device according to claim 3, characterized in that: The first roller and the second roller both include a rotating shaft; The ends of the rotating shafts of the first roller and the second roller are both clamped and connected with the corresponding large gears.

9. The deceleration structure for a cable winding device according to any one of claims 1 to 8, characterized in that: The bracket comprises a first part and a second part, wherein the first part and the second part are detachably connected; One end of the first roller and the second roller is arranged on the first part, and the other end of the first roller and the second roller is arranged on the second part.

10. A cable winding device, characterized in that: The invention comprises a deceleration structure for a cable winding device as claimed in any one of claims 1 to 9.

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