Lifting limiting winder

Abstract

The utility model relates to the field of winders, and discloses a lifting limiting winder. The lifting limiting winder comprises a winding motor, a winding hub, a transmission mechanism, a limiting gear, a first connecting rod, a second connecting rod and a microswitch. The coiling motor is in shaft connection with the coiling hub, the coiling hub is fixedly connected with the transmission mechanism, the transmission mechanism is in meshed connection with the limiting gear, the first connecting rod and the second connecting rod are fixedly installed on the limiting gear, the coiling motor drives the coiling hub to rotate, and the coiling hub drives the limiting gear to rotate through the transmission mechanism. A microswitch is arranged on the rotation track of the rod end of the first connecting rod and the rotation track of the rod end of the second connecting rod, a first elastic piece and a second elastic piece are arranged on one side of the rotation track of the rod end of the microswitch, and when the first elastic piece or the second elastic piece abuts against the microswitch, the microswitch stops rotation of the winding motor. In the embodiment of the utility model, the suspension wire length of the winding wheel hub to the hoisted object is limited, so that the motion stroke of the hoisted object is effectively controlled within a design range.

Description

Technical Field

[0001] This utility model relates to the field of cable reels, and more particularly to a cable reel with lifting and limiting function. Background Technology

[0002] Electric cord reels use a motor to drive the reel to rotate, which can quickly and effortlessly wind up cables. Electric cord reels have many applications in wall cleaning, chandelier activation, curtain activation, and roller shutter control, but they usually have certain limitations.

[0003] Chinese patent CN217297090U discloses a novel lifting mechanism that utilizes the stable operating current and speed of a motor to lift objects. However, when the object is moving up and down, if the drive device alone records its movement, significant errors can occur, causing the electric reel to be unable to effectively control the object's range of motion. This can result in consequences such as the object impacting the reel or falling to the ground.

[0004] Therefore, a new technology is needed to address the problem that current cable reels cannot effectively control the movement of objects during hoisting. Utility Model Content

[0005] The main purpose of this utility model is to solve the technical problem that current cable reels cannot effectively control the movement of objects during hoisting.

[0006] The first aspect of this utility model provides a lifting and limiting cable reel, the lifting and limiting cable reel comprising:

[0007] Wire winding motor, wire winding hub, transmission mechanism, limit gear, first connecting rod, second connecting rod, micro switch;

[0008] The winding motor is connected to the winding hub shaft, the winding hub is fixedly connected to the transmission mechanism, the transmission mechanism is meshed with the limiting gear, the first connecting rod and the second connecting rod are fixedly installed on the limiting gear, the winding motor drives the winding hub to rotate, and the winding hub drives the limiting gear to rotate through the transmission mechanism. A micro switch is provided on the rotation trajectory of the rod ends of the first connecting rod and the second connecting rod. The micro switch is provided with a first spring and a second spring on one side of the rotation trajectory of the rod ends. When the first spring or the second spring is pressed, the winding motor stops rotating.

[0009] Optionally, in a first implementation of the first aspect of this utility model, one end of the first connecting rod and one end of the second connecting rod are fixedly mounted on the axis of the limiting gear, and the other end of the first connecting rod and the other end of the second connecting rod are set to be equidistant from the axis of the limiting gear.

[0010] Optionally, in a second implementation of the first aspect of this utility model, the first connecting rod and the second connecting rod are arranged at an acute angle.

[0011] Optionally, in a third implementation of the first aspect of this utility model, the first spring and the second spring are arranged in a figure-eight shape.

[0012] Optionally, in a fourth implementation of the first aspect of this utility model, when the first or second spring is pressed together, the first or second connecting rod abuts against the second or first spring.

[0013] Optionally, in a fifth implementation of the first aspect of this utility model, the transmission mechanism includes: a hub drive gear and a double gear, wherein the winding hub is fixedly connected to the hub drive gear, the hub drive gear meshes with the outer gear of the double gear, and the inner gear of the double gear meshes with the limiting gear.

[0014] Optionally, in a sixth implementation of the first aspect of this utility model, the winding motor is disposed at one end of the winding of the winding wheel hub.

[0015] Optionally, in a seventh implementation of the first aspect of this utility model, a first positioning ring is provided at one end of the first connecting rod.

[0016] Optionally, in an eighth implementation of the first aspect of this utility model, a second positioning ring is provided at one end of the second connecting rod.

[0017] Optionally, in a ninth implementation of the first aspect of this utility model, the first positioning ring is fixed on the axis of the limiting gear, and the second positioning ring is fixedly installed on the axis of the first positioning ring.

[0018] In this embodiment of the invention, by using a micro switch to set a first spring and a second spring to limit the movement range of the first and second links, the rotation angle of the limiting gear is kept within a set range. The rotation angle of the limiting gear is used to limit the number of rotations of the winding motor controlled by the scaling control of the transmission mechanism, thereby limiting the length of the wire hanging from the winding hub to the object being lifted. This effectively controls the movement stroke of the object being lifted within the design range, solving the technical problem that current wire reels cannot effectively control the movement stroke of the object being lifted. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of one embodiment of the lifting and limiting reel in this utility model;

[0020] Figure 2 This is an exploded view of the lifting and limiting reel in an embodiment of the present invention;

[0021] Figure 3 As an embodiment of this utility model Figure 2 An enlarged schematic diagram of region A.

[0022] Icon labels:

[0023] 10-Wire winding motor, 20-Wire winding hub, 30-Transmission mechanism, 40-Limit gear, 401-First connecting rod, 402-Second connecting rod, 50-Micro switch, 501-First spring, 502-Second spring, 4021-Second positioning ring, 4011-First positioning ring, 301-Hub drive gear, 302-Double gear, 3022-Internal gear, 3021-External gear. Detailed Implementation

[0024] This utility model embodiment provides a cable reel with lifting and limiting function.

[0025] The embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the accompanying drawings and embodiments disclosed herein are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0026] In the description of the embodiments disclosed in this utility model, the term "comprising" and similar terms should be understood as open-ended inclusion, i.e., "including but not limited to". The term "based on" should be understood as "at least partially based on". The term "one embodiment" or "this embodiment" should be understood as "at least one embodiment". The terms "first", "second", etc., may refer to different or the same objects. Other explicit and implicit definitions may also be included below.

[0027] For ease of understanding, the specific process of the embodiments of this utility model is described below. Please refer to [link / reference]. Figure 1 One embodiment of the lifting and limiting cable reel in this utility model includes:

[0028] 10 winding motor, 20 winding hub, 30 transmission mechanism, 40 limit gear, 401 first connecting rod, 402 second connecting rod, 50 micro switch;

[0029] The winding motor 10 is shaft-connected to the winding hub 20. The rotation of the winding motor 10 drives the winding hub 20 to move, thereby releasing and retracting the suspended wire on the winding hub 20.

[0030] The winding hub 20 is fixedly connected to the transmission mechanism 30, and the transmission mechanism 30 is meshed with the limiting gear 40. The first connecting rod 401 and the second connecting rod 402 are fixedly installed on the limiting gear 40. The winding motor 10 drives the winding hub 20 to rotate, and the winding hub 20 drives the limiting gear to rotate through the transmission mechanism 30. A micro switch 50 is provided on the rotation trajectory of the rod ends of the first connecting rod 401 and the second connecting rod 402. The micro switch 50 is provided with a first spring 501 and a second spring 502 on one side of the rotation trajectory of the rod ends. When the first spring 501 or the second spring 502 is pressed together, the micro switch 50 sends a signal to the winding motor 10 to stop the rotation of the winding motor 10.

[0031] When the winding motor 10 rotates clockwise, it drives the transmission mechanism 30 to rotate counterclockwise via the winding hub 20. This, in turn, causes the limiting gear 40 to rotate clockwise through gear meshing. The first connecting rod 401 rotates clockwise away from the first spring 501, and the second connecting rod 402 rotates clockwise and abuts against the second spring 502. Once the second spring 502 is pressed against, the micro switch 50 is activated, thus stopping the rotation of the winding motor 10. Similarly, the rotation of the winding motor 10 counterclockwise is similar and will not be elaborated upon here. The rotation range of the winding hub 20 is limited to the rotation angle range from when the first connecting rod 401 abuts against the first spring 501 to when the second connecting rod 402 abuts against the second spring 502. Based on this rotation angle range, setting the transmission ratio and the radius of the winding hub 20 effectively controls the length of the hanging line's vertical movement within the winding hub 20.

[0032] For details, please refer to Figure 2 , Figure 2 This is an exploded view of the lifting and limiting reel in an embodiment of the present invention. Please refer to [the diagram]. Figure 3 , Figure 3 As an embodiment of this utility model Figure 2 An enlarged schematic diagram of region A.

[0033] <First Specific Embodiment>

[0034] In order to ensure accurate calculation of the stroke of the winding motor 10 in clockwise and counterclockwise compression of the first spring 501 and the second spring 502, one end of the first connecting rod 401 and one end of the second connecting rod 401 are fixedly installed on the axis of the limiting gear 40, and the distance from the axis of the limiting gear 40 to the other end of the first connecting rod 401 and the other end of the second connecting rod 402 are set to be equal.

[0035] Furthermore, to avoid the work done by the force during the compression of the spring by the connecting rod being negative, the first connecting rod 401 and the second connecting rod 402 are set at an acute angle so that the angle between the motion vector of the circular motion of the rod ends of the first connecting rod 401 and the spring of the micro switch 50 is an acute angle, thus successfully realizing the compression work on the spring.

[0036] Furthermore, in order to improve the accuracy of the termination of the operation of the first link 401 and the second link 402, the first spring 501 and the second spring 502 are arranged in a figure-eight shape, and the distance is set such that when the first spring 501 or the second spring 502 is pressed together, the first link 401 or the second link 402 abuts against the second spring 502 or the first spring 501, which mechanically prevents the first link 401 or the second link 402 from moving. Combined with the termination of the operation of the winding motor 10 by the micro switch 50, more precise lifting and lowering limit control of the winding device on the hanging wire is achieved.

[0037] <Second Specific Embodiment>

[0038] In this embodiment, the transmission mechanism 30 includes a hub drive gear 301 and a double gear 302. The winding hub 20 is fixedly connected to the hub drive gear 301 via a first component 201. The hub drive gear 301 meshes with the outer gear 3021 of the double gear 302, and the inner gear 3022 of the double gear 302 meshes with the limiting gear 40. The winding motor 10 is located at the winding end of the winding hub 20. The winding hub 20 is connected to the winding motor 10 via the second component 202, so that the winding motor 10 drives the winding hub 20 to rotate, and the winding hub 20 drives the hub drive gear 301 to rotate. Through gear meshing, the limiting gear 40 is engaged. The use of the double gear 302 facilitates the calculation of the transmission ratio and can more effectively calculate the lifting and lowering limit distance of the hoisting rope.

[0039] <Third Specific Embodiment>

[0040] In this embodiment, a first positioning ring 4011 is provided at one end of the first connecting rod 401, and a second positioning ring 4021 is provided at one end of the second connecting rod 402. The first positioning ring 4011 is fixed on the shaft of the limiting gear, and the second positioning ring 4021 is fixedly installed on the shaft of the first positioning ring 4011. The first positioning ring 4011 and the second positioning ring 4021 increase the contact area of ​​the connecting rod, which helps to fix the position of the connecting rod on the gear shaft, prevents the connecting rod from moving axially or radially during operation, ensures the stability of the relative positional relationship between the connecting rod and the gear, and thus ensures the accuracy of transmission.

[0041] In this embodiment of the invention, by using a micro switch to set a first spring and a second spring to limit the movement range of the first and second links, the rotation angle of the limiting gear is kept within a set range. The rotation angle of the limiting gear is used to limit the number of rotations of the winding motor controlled by the scaling control of the transmission mechanism, thereby limiting the length of the wire hanging from the winding hub to the object being lifted. This effectively controls the movement stroke of the object being lifted within the design range, solving the technical problem that current wire reels cannot effectively control the movement stroke of the object being lifted.

[0042] Furthermore, although the operations are described in a specific order, this should be understood as requiring that such operations be performed in the specific order shown or in sequential order, or requiring that all illustrated operations be performed to achieve the desired result. In certain environments, multitasking and parallel processing may be advantageous. Similarly, although several specific implementation details are included in the above discussion, these should not be construed as limiting the scope of this disclosure. Certain features described in the context of individual embodiments may also be implemented in combination in a single implementation. Conversely, various features described in the context of a single implementation may also be implemented individually or in any suitable sub-combination in multiple implementations.

[0043] Although the subject matter has been described using language specific to structural features and / or methodological logic, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or actions described above. Rather, the specific features and actions described above are merely illustrative examples of implementing the claims.

Claims

1. A lift-limited cord reel, characterized by comprising: The lifting limiting winding reel comprises: A winding motor, a winding hub, a transmission mechanism, a limiting gear, a first connecting rod, a second connecting rod, and a micro switch; The winding motor is connected with the winding hub in a shaft manner, the winding hub is fixedly connected with the transmission mechanism, the transmission mechanism is meshingly connected with the limiting gear, the first connecting rod and the second connecting rod are fixedly installed on the limiting gear, the winding motor drives the winding hub to rotate, the winding hub drives the limiting gear to rotate through the transmission mechanism, the micro switch is arranged on the rod end rotation track of the first connecting rod and the second connecting rod, the first elastic sheet and the second elastic sheet are arranged on one side of the rod end rotation track of the micro switch, and the winding motor stops rotating when the first elastic sheet or the second elastic sheet abuts tightly.

2. The lift-limited cord reel of claim 1, wherein, One end of the first connecting rod and one end of the second connecting rod are fixedly installed on the shaft center of the limiting gear, and the other end of the first connecting rod and the other end of the second connecting rod are arranged to be equal in distance from the shaft center of the limiting gear.

3. The lift-limited cord reel of claim 2, wherein, The first connecting rod and the second connecting rod are arranged at an acute angle.

4. The lift-limited cord reel of claim 3, wherein, The first elastic sheet and the second elastic sheet are arranged in a "figure of eight" shape.

5. The lift-limited cord reel of claim 4, wherein, When the first elastic sheet or the second elastic sheet abuts tightly, the first connecting rod or the second connecting rod abuts against the second elastic sheet or the first elastic sheet.

6. The lift-limiter cord reel of claim 1, wherein, The transmission mechanism comprises a hub transmission gear and a double gear, the winding hub is fixedly connected with the hub transmission gear, the hub transmission gear is meshingly connected with the outer gear of the double gear, and the inner gear of the double gear is meshingly connected with the limiting gear.

7. The lift-limiter cord reel of claim 1, wherein, The winding motor is arranged at one end of the winding hub.

8. The lift-limiter cord reel of claim 1, wherein, One end of the first connecting rod is provided with a first positioning ring.

9. The lift-limiter cord reel of claim 8, wherein, One end of the second connecting rod is provided with a second positioning ring.

10. The lift-limiter cord reel of claim 9, wherein, The first positioning ring is fixed on the shaft center of the limiting gear, and the second positioning ring is fixedly installed on the shaft center of the first positioning ring.

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