Pulley block transmission structure

Abstract

The utility model relates to a pulley block transmission structure which comprises a force input shaft, a one-way rotating mechanism, a driving gear, a driven gear, a driven gear shaft and a rope wheel. One end of the force input shaft is connected with a power input mechanism, the other end of the force input shaft is connected with a one-way rotating mechanism, the bottom end of the one-way rotating mechanism is connected with one end of a driving gear, and the other end of the driving gear is sleeved with a gear sleeve; a driven gear shaft is arranged on one side of the driving gear, a driven gear and a rope wheel are arranged on the driven gear shaft, and the driven gear is meshed with the driving gear. According to the pulley block transmission structure, the rope wound on the pulley block is wound on the rope wheel in a one-way mode, and the falling situation caused by reverse movement of the rope wheel is effectively avoided; the end of the driving gear is sleeved with the gear sleeve, the overall structural stability of the driving gear is improved through the arrangement of the gear sleeve, the service life of the driving gear is prolonged, and meanwhile the safety of the pulley block transmission structure is improved.

Description

Technical Field

[0001] This utility model relates to a transmission structure, and more particularly to a pulley block transmission structure. Background Technology

[0002] In the current high-altitude work industry, the main method used is to manually descend to the working height using safety ropes. The entire process is difficult, dangerous, and requires high skill levels from the operators. Against this backdrop, a multi-functional pulley system was developed. It uses an electric drill as a power source to transmit power to the multi-functional pulley system, which in turn transmits power to the static rope through an internal mechanism. Ultimately, the multi-functional pulley system automatically lifts the operator from the ground to the working height.

[0003] The existing pulley system uses a transmission structure to wind the rope around the pulley, enabling workers to ascend. However, the transmission structure currently exhibits bidirectional movement during use, causing the pulley within the transmission structure to move in both directions. This poses a risk of workers falling from heights and creates a safety hazard for high-altitude operations. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in related technologies. To this end, this utility model proposes a pulley block transmission structure.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a pulley block transmission structure, including an input shaft, a one-way rotation mechanism, a driving gear, a driven gear, a driven gear shaft, and a rope wheel;

[0006] One end of the input shaft is connected to the power input mechanism, and the other end of the input shaft is connected to the one-way rotation mechanism. The bottom end of the one-way rotation mechanism is connected to one end of the drive gear, and the other end of the drive gear is fitted with a gear sleeve.

[0007] A driven gear shaft is provided on one side of the driving gear, and a driven gear and a rope pulley are provided on the driven gear shaft. The driven gear and the driving gear mesh.

[0008] In a preferred embodiment of the present invention, the unidirectional rotation mechanism includes a first unidirectional ratchet and a second unidirectional ratchet. The first unidirectional ratchet is disposed at the bottom end of the input shaft, and the second unidirectional ratchet is disposed at the bottom end of the first unidirectional ratchet, and the second unidirectional ratchet meshes with the first unidirectional ratchet.

[0009] In a preferred embodiment of the present invention, a connecting sleeve is provided on the outer ring of the meshing point of the first one-way ratchet and the second one-way ratchet.

[0010] In a preferred embodiment of this utility model, one end of the input shaft connected to the power input mechanism is provided with a power input hole, and the power input mechanism is an electric drill.

[0011] In a preferred embodiment of this utility model, the rope wheel is provided with a plurality of grooves.

[0012] The beneficial effects of this utility model are: the pulley block transmission structure of this application realizes that the rope wound on the pulley block is wound unidirectionally on the rope wheel, effectively avoiding the fall caused by the rope wheel moving in the opposite direction; a gear sleeve is provided at the end of the driving gear, which improves the overall structural stability of the driving gear, extends the service life of the driving gear, and improves the safety of the pulley block transmission structure. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is an exploded structural diagram of the present invention;

[0015] Figure 3 This is a schematic diagram of the unidirectional rotation mechanism of this utility model;

[0016] Figure 4 This is a reference diagram showing the usage state of this utility model;

[0017] In the figure: input shaft 1; power input hole 101; first one-way ratchet 2; second one-way ratchet 3; connecting sleeve 4; driving gear 5; gear sleeve 6; driven gear 7; driven gear shaft 8; rope pulley 9; groove 901; rope 10. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0020] like Figures 1 to 4 The pulley block transmission structure shown includes an input shaft 1, a one-way rotation mechanism, a driving gear 5, a driven gear 7, a driven gear shaft 8, and a rope pulley 9;

[0021] One end of the input shaft 1 is connected to the power input mechanism, and the other end of the input shaft 1 is connected to the one-way rotation mechanism. The bottom end of the one-way rotation mechanism is connected to one end of the drive gear 5, and the other end of the drive gear 5 is fitted with a gear sleeve 6.

[0022] The driving gear 5 has a driven gear shaft 8 on one side, and a driven gear 7 and a rope wheel 9 are provided on the driven gear shaft 8. The driven gear 7 meshes with the driving gear 5.

[0023] In use, the pulley block transmission structure of this utility model provides power to the input shaft 1 through the power input mechanism. The input shaft 1 rotates under the action of the power input, which in turn drives the rotation of the one-way rotation mechanism connected to the input shaft 1. The rotation of the one-way rotation mechanism drives the drive gear 5 to rotate. The drive gear 5 meshes with the driven gear 7, thereby realizing that the drive gear 5 drives the driven gear 7 to rotate. Since the driven gear 7 is set on the driven gear shaft 8, and the driven gear shaft 8 is equipped with a rope wheel 9, during the rotation of the driven gear 7, it drives the driven gear shaft 8 to rotate. Finally, the driven gear shaft 8 drives the rope wheel 9 to rotate, realizing that the rope 10 wound on the pulley block is unidirectionally wound on the rope wheel 9, effectively avoiding the fall caused by the reverse movement of the rope wheel 9. In this application, a gear sleeve 6 is provided at the end of the drive gear 5. The setting of the gear sleeve 6 improves the overall structural stability between the teeth of the drive gear 5, extends the service life of the drive gear 5, and improves the safety of the pulley block transmission structure.

[0024] In a preferred embodiment, the unidirectional rotation mechanism of this application includes a first unidirectional ratchet 2 and a second unidirectional ratchet 3. The first unidirectional ratchet 2 is disposed at the bottom end of the input shaft 1, and the second unidirectional ratchet 3 is disposed at the bottom end of the first unidirectional ratchet 2, and the second unidirectional ratchet 3 meshes with the first unidirectional ratchet 2. During the rotation of the input shaft 1, the first unidirectional ratchet 2 is driven to rotate. Since the second unidirectional ratchet 3 meshes with the first unidirectional ratchet 2, the input shaft 1 maintains unidirectional motion throughout the process of driving the drive gear 5 to rotate through the first unidirectional ratchet 2 and the second unidirectional ratchet 3. The arrangement of the first unidirectional ratchet 2 and the second unidirectional ratchet 3 avoids bidirectional rotation of the input shaft 1, ensures the unidirectional operation of the transmission structure, and thus ensures the unidirectional motion of the rope wheel, ensuring the safe use of the rope wheel 9.

[0025] In this application, a connecting sleeve 4 is provided on the outer ring of the meshing point of the first one-way ratchet 2 and the second one-way ratchet 3, which improves the stability and structural strength of the meshing between the first one-way ratchet 2 and the second one-way ratchet 3.

[0026] The rope wheel 9 described in this application is provided with a plurality of grooves 901. The plurality of grooves 901 are provided to increase the friction when the rope wheel 9 contacts the rope 10, thereby improving the stability and safety of the rope 10 winding on the rope wheel 9.

[0027] In this application, the input shaft 1 is provided with a power input hole 101 at one end connected to the power input mechanism, which is an electric drill. This facilitates the insertion of the electric drill into the power input hole 101, enabling the electric drill to drive the input shaft 1 and thus rotate it. More preferably, the power input hole 101 in this application has an internal hexagonal cross-section, which facilitates matching with the electric drill and improves the matching degree and connection stability between the electric drill and the power input hole 101.

[0028] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] In summary, although the present invention has been disclosed above with reference to preferred embodiments, the above preferred embodiments are not intended to limit the present invention. Those skilled in the art can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope defined in the claims.

Claims

1. A pulley block transmission structure, characterized in that, It includes an input shaft (1), a one-way rotation mechanism, a driving gear (5), a driven gear (7), a driven gear shaft (8), and a rope pulley (9); One end of the input shaft (1) is connected to the power input mechanism, and the other end of the input shaft (1) is connected to the one-way rotation mechanism. The bottom end of the one-way rotation mechanism is connected to one end of the drive gear (5), and the other end of the drive gear (5) is fitted with a gear sleeve (6). The driving gear (5) has a driven gear shaft (8) on one side, and a driven gear (7) and a rope wheel (9) are provided on the driven gear shaft (8). The driven gear (7) and the driving gear (5) mesh.

2. The pulley block transmission structure according to claim 1, characterized in that, The unidirectional rotation mechanism includes a first unidirectional ratchet (2) and a second unidirectional ratchet (3). The first unidirectional ratchet (2) is located at the bottom end of the input shaft (1), and the second unidirectional ratchet (3) is located at the bottom end of the first unidirectional ratchet (2). The second unidirectional ratchet (3) and the first unidirectional ratchet (2) mesh with each other.

3. The pulley block transmission structure according to claim 2, characterized in that, A connecting sleeve (4) is provided on the outer ring of the meshing point of the first one-way ratchet (2) and the second one-way ratchet (3).

4. The pulley block transmission structure according to claim 1, characterized in that, The input shaft (1) is connected to a power input mechanism at one end, which is provided with a power input hole (101). The power input mechanism is an electric drill.

5. The pulley block transmission structure according to any one of claims 1-4, characterized in that, The rope wheel (9) is provided with multiple grooves (901).

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