A series vortex spring energy storage cable retractor

Abstract

The present invention discloses a series vortex spring energy storage cable retractor, comprising a winding drum, a hollow fixed shaft, a first vortex spring, a second vortex spring, a first spring box, a second spring box, a first spring core, and a two-spring hollow flange shaft, wherein the inner wall of the first spring core is fixedly connected to the circumferential outer wall of the hollow fixed shaft, and the circumferential outer wall of the first spring core is fixedly connected to the circumferential inner wall of the first vortex spring. In the present invention, when an external force applies a torque in the opposite direction to the winding drum through a cable, the winding drum reels the second vortex spring through a second spring pin, and the torque generated when the second vortex spring is retracted drives the first spring pin in the first spring box through the two-spring hollow flange shaft, and after the torque is transmitted to the outer ring of the first vortex spring, the first vortex spring is retracted to form a series reeling method for energy storage, and when two identical vortex springs are used in series, the reeling amount can reach nearly twice the retracting and releasing stroke of a single or multiple identical vortex springs used in parallel.

Description

Technical Field

[0001] The invention relates to the technical field of window cleaning machines, and in particular to a series vortex spring energy storage cable take-up device. Background Art

[0002] Window cleaning machine is a permanent suspended access equipment used for cleaning and maintenance of windows and exterior walls of buildings or structures. According to the installation method, it can be divided into: wheel-mounted, roof track, suspended track, rod-mounted, slide-mounted, etc.

[0003] As there are more and more supporting facilities in buildings, the space available for window cleaning machines on the roof is getting smaller and smaller, which makes the telescopic length of the window cleaning machine's arm longer and longer. The cable retractor is one of the indispensable parts of the window cleaning machine. At present, the existing cable retractors for window cleaning machines have a small amount of cable retracting and releasing, which cannot meet customer needs. Therefore, it is urgent to design a series vortex spring energy storage cable retractor to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a series vortex spring energy storage cable retractor.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A series vortex spring energy storage cable retractor includes a winding drum, a hollow fixed shaft, a first vortex spring, a second vortex spring, a first spring box, a second spring box, a first spring core, and a two-spring hollow flange shaft. The inner wall of the first spring core is fixedly connected to the circumferential outer wall of the hollow fixed shaft, and the circumferential outer wall of the first spring core is fixedly connected to the circumferential inner wall of the first vortex spring.

[0007] Preferably, the circumferential outer wall of the first vortex spring is fixedly connected to the second spring hollow flange shaft, and the circumferential outer wall of the second spring hollow flange shaft is fixedly connected to the circumferential inner wall of the second vortex spring.

[0008] Preferably, a second spring pin is provided on the circumferential outer wall of the second vortex spring, and the outer wall of the second spring pin is fixedly connected to the winding reel.

[0009] Preferably, both sides of the winding drum are rotatably connected to the hollow fixed shaft.

[0010] Preferably, the other side of the first spring box is fixedly connected to the second hollow flange shaft, and one side of the first spring box is rotatably connected to the circumferential outer wall of the hollow fixed shaft.

[0011] Preferably, the first vortex spring is fixedly connected to the hollow fixed shaft, and the circumferential outer wall of the second vortex spring is fixedly connected to the winding drum.

[0012] Preferably, two sides of the second spring box are rotatably connected to the hollow fixed shaft.

[0013] Preferably, the two-spring hollow flange shaft is rotatably connected to the hollow fixed shaft.

[0014] Preferably, a collector ring is fixedly provided on one side of the hollow fixed shaft, a rain cover is fixedly provided on one side of the winding reel, and the collector ring is located inside the rain cover.

[0015] Preferably, there are a plurality of first vortex springs and second vortex springs, which are arranged in series with each other.

[0016] The beneficial effects of the present invention are:

[0017] 1. By setting the first vortex spring, the first spring core, the second vortex spring, the second spring core, the first spring pin, the second spring pin and the two-spring hollow flange shaft, when the external force applies a torque in the opposite direction to the winding drum through the cable, the winding drum reels the second vortex spring through the second spring pin, and the torque generated when the second vortex spring is retracted drives the first spring pin in the first spring box through the two-spring hollow flange shaft. After the torque is transmitted to the outer ring of the first vortex spring, the first vortex spring is retracted to form a series rewinding method for energy storage. When two identical vortex springs are used in series, the rewinding amount can reach nearly twice the retraction and extension stroke of the same vortex springs used alone or in parallel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a partial front structural sectional view of a series vortex spring energy storage cable retractor proposed by the present invention.

[0019] In the figure: 1. hollow fixed shaft; 2. winding drum; 3. first spring box; 4. second spring box; 5. first vortex spring; 6. first spring core; 7. two-spring hollow flange shaft; 8. second spring pin; 10. second vortex spring; 11. collector ring; 12. rain cover. DETAILED DESCRIPTION

[0020] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0021] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0022] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying 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 this patent.

[0023] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0024] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0025] Reference Figure 1 A series vortex spring energy storage cable retractor includes a winding drum 2, a hollow fixed shaft 1, a first vortex spring 5, a second vortex spring 10, a first spring box 3, a second spring box 4, a first spring core 6, and a two-spring hollow flange shaft 7. The inner wall of the first spring core 6 is fixedly connected to the circumferential outer wall of the hollow fixed shaft 1, and the circumferential outer wall of the first spring core 6 is fixedly connected to the circumferential inner wall of the first vortex spring 5.

[0026] The circumferential outer wall of the first vortex spring 5 is fixedly connected to the two-spring hollow flange shaft 7 , and the circumferential outer wall of the two-spring hollow flange shaft 7 is fixedly connected to the circumferential inner wall of the second vortex spring 10 .

[0027] The second vortex spring 10 has a second spring pin 8 disposed on its circumferential outer wall, and the outer wall of the second spring pin 8 is fixedly connected to the bobbin 2 .

[0028] The two sides of the winding drum 2 are rotatably connected to the hollow fixed shaft 1 .

[0029] The other side of the first spring box 3 is fixedly connected to the second hollow flange shaft, and one side of the first spring box 3 is rotatably connected to the circumferential outer wall of the hollow fixed shaft 1 .

[0030] The first vortex spring 5 is fixedly connected to the hollow fixed shaft 1 , and the circumferential outer wall of the second vortex spring 10 is fixedly connected to the winding drum 2 .

[0031] The two sides of the second spring box 4 are rotatably connected to the hollow fixed shaft 1 .

[0032] The two-spring hollow flange shaft 7 and the hollow fixed shaft 1 are rotationally connected.

[0033] Among them, a collector ring 11 is fixedly provided on one side of the hollow fixed shaft 1, and a rain cover 12 is fixedly provided on one side of the winding drum 2, and the collector ring 11 is located in the rain cover 12. The collector ring 11 solves the entanglement of the rotating and fixed parts of the cable, and the rain cover 12 prevents rainwater from entering the collector ring 11 and causing damage to the collector ring 11.

[0034] There are multiple first vortex springs 5 ​​and second vortex springs 10, which are arranged in series with each other.

[0035] Working principle: When external force applies torque in the opposite direction to the winding drum 2 through the cable, the winding drum 2 reels the second vortex spring 10 through the second spring pin 8; the torque generated when the second vortex spring 10 is retracted drives the first spring pin in the first spring box 3 through the second spring hollow flange shaft 7, and after the torque is transmitted to the outer ring of the first vortex spring 5, the first vortex spring 5 is retracted.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A tandem vortex spring energy storage cable retractor, comprising a winding drum (2), a hollow fixed shaft (1), a first vortex spring (5), a second vortex spring (10), a first spring box (3), a second spring box (4), a first spring core (6), and a two-spring hollow flange shaft (7), characterized in that: The inner wall of the first spring core (6) is fixedly connected to the circumferential outer wall of the hollow fixed shaft (1), and the circumferential outer wall of the first spring core (6) is fixedly connected to the circumferential inner wall of the first vortex spring (5); the circumferential outer wall of the first vortex spring (5) is fixedly connected to the second spring hollow flange shaft (7), and the circumferential outer wall of the second spring hollow flange shaft (7) is fixedly connected to the circumferential inner wall of the second vortex spring (10); the circumferential outer wall of the second vortex spring (10) is provided with a second spring pin (8), and the outer wall of the second spring pin (8) is fixedly connected to the winding drum (2); both sides of the winding drum (2) are rotatably connected to the hollow fixed shaft (1); the other side of the first spring box (3) is fixedly connected to the second hollow flange shaft, and one side of the first spring box (3) is rotatably connected to the circumferential outer wall of the hollow fixed shaft (1); The first vortex spring (5) is fixedly connected to the hollow fixed shaft (1), the circumferential outer wall of the second vortex spring (10) is fixedly connected to the winding drum (2); and both sides of the second spring box (4) are rotatably connected to the hollow fixed shaft (1).

2. A series vortex spring energy storage cable retractor according to claim 1, characterized in that: The two-spring hollow flange shaft (7) is rotatably connected to the hollow fixed shaft (1).

3. A series vortex spring energy storage cable retractor according to claim 2, characterized in that: A collector ring (11) is fixedly provided on one side of the hollow fixed shaft (1), a rain cover (12) is fixedly provided on one side of the winding drum (2), and the collector ring (11) is located inside the rain cover (12).

4. A series vortex spring energy storage cable retractor according to claim 3, characterized in that: There are a plurality of first vortex springs (5) and second vortex springs (10), which are arranged in series with each other.

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