Manual and electric switching device for cable reel

Abstract

The utility model provides a manual and electric switching device for a cable reel, which comprises a base, an input shaft, an output shaft, a shifting fork shaft, a shifting fork, a manual and electric switching shaft, a coupler, a hand-cranking shaft and a transmission bevel gear, and the base comprises upper, lower, left and right side plates and transverse and vertical partition plates and is provided with an upper cavity, a left cavity and a right cavity; a transmission bevel gear is mounted in the middle of the output shaft, and the right end of the output shaft penetrates through the vertical partition plate to enter the right cavity; the input shaft is inserted into the right cavity through the right side plate and connected with the output shaft through a coupler. The inner side end of the hand-cranking shaft is provided with a bevel pinion meshed with the transmission bevel gear, and the outer side end is used for mounting a handle; most of the shifting fork shaft is arranged in the right cavity, and the upper end penetrates through the diaphragm plate to enter the upper cavity for mounting the gear; the inner side end of the manual-electric switching shaft is in gear transmission with the shifting fork shaft through a gear, the outer side end of the manual-electric switching shaft is used for installing a handle, a shifting fork is installed on the shifting fork shaft, the shifting fork shaft drives the shifting fork to enable the coupler to be connected or disconnected, and it is guaranteed that a cable can be manually folded and unfolded when the electric cable reel is powered off or a motor breaks down.

Description

Technical Field

[0001] The utility model relates to a manual and electric switching device for a cable reel. Background Art

[0002] A cable reel is a device used to store and coil cables or wires. It can protect the cables or wires and prevent problems such as entanglement and breakage during storage and use, and is also convenient for handling and using the cables. Existing cable reels are divided into manual cable reels and electric cable reels according to the way of winding and unwinding the cables. Among them, the manual cable reel has the disadvantages of high labor intensity and slow winding speed, and cannot meet the winding requirements of a large amount or heavy cables; the electric cable reel has the disadvantage that it cannot operate normally when powered off. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a manual and electric switching device for a cable reel to ensure that the electric cable reel can manually wind and unwind the cables when powered off or the motor fails.

[0004] To solve the above technical problem, the technical solution of the utility model is: a manual and electric switching device for a cable reel, including a machine base, an input shaft, an output shaft, a fork shaft, a fork, a manual and electric switching shaft, a coupling, a hand crank shaft, and a transmission bevel gear; the machine base is an overall box-shaped structure composed of a bottom plate, an upper side plate, a lower side plate, a left side plate, and a right side plate. There is a horizontal partition and a vertical partition in the machine base. The vertical partition and the horizontal partition form a T shape, thus dividing the entire interior of the machine base into an upper cavity, a left cavity, and a right cavity; most of the output shaft is located in the left cavity. A transmission bevel gear is installed in the middle of the output shaft. The left end of the output shaft passes through the shaft hole of the left side plate and extends outwards. The right end of the output shaft passes through the shaft hole of the vertical partition and enters the right cavity. The left end of the input shaft is inserted into the right cavity through the shaft hole of the right side plate. The right end of the output shaft is connected to the left end of the input shaft through a coupling; the inner end of the hand crank shaft is located in the left cavity and is installed with a small bevel gear, which meshes with the transmission bevel gear. The outer end of the hand crank shaft passes through the shaft holes of the horizontal partition and the upper side plate in sequence and is used to install a handle; most of the fork shaft is located in the right cavity. The lower end of the fork shaft passes through the shaft hole of the lower side plate. The upper end of the fork shaft passes through the shaft hole of the horizontal partition and enters the upper cavity and is installed with a gear. The inner end of the manual and electric switching shaft is located in the upper cavity and is in meshing transmission with the gear on the fork shaft through the gear. The outer end of the manual and electric switching shaft passes through the shaft hole of the upper side plate and is used to install a handle; a fork is installed at the position of the fork shaft corresponding to the coupling. Driven by the manual and electric switching shaft and the fork shaft, the fork can make the coupling in a connected or disconnected state.

[0005] In one embodiment, the coupling includes a driving plate and a linkage plate. The linkage plate is fixed to the right end of the output shaft. The driving plate is spline-connected to the input shaft. A spring is installed between the driving plate and the right side plate. Under the action of the spring, the driving plate moves closer to the linkage plate, so that the pin on the driving plate of the coupling is inserted into the waist-shaped groove of the linkage plate of the coupling, thereby realizing the connection of the coupling. The input shaft drives the output shaft to rotate through the coupling. When it is necessary to switch to the manual mode, first use the handle to rotate the manual-electric switching shaft, which in turn drives the fork shaft and the fork to rotate. The fork pushes the driving plate away from the linkage plate. At this time, the coupling does not work and the input shaft cannot drive the output shaft to rotate. Then use the handle to rotate the hand crank shaft. The small bevel gear on the hand crank shaft meshes with the transmission bevel gear on the output shaft to drive the output shaft to rotate.

[0006] In one embodiment, bearing seats and bearings are installed at the shaft hole positions of the upper side plate, the lower side plate, the left side plate, the right side plate, the transverse partition plate, and the vertical partition plate.

[0007] The utility model specifically designs a manual-electric switching device for an electric cable reel to ensure that the cable can be normally wound and unwound when the electric cable reel is powered off or the motor fails. The structure of the device is ingenious and reasonable, and it is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 is a schematic diagram of the overall structure of the manual-electric switching device in the embodiment of the utility model;

[0009] Figure 2 is Figure 1 a schematic diagram of the structure after rotating a certain angle;

[0010] Figure 3 is Figure 1 a schematic diagram of the structure after removing the vertical partition plate in

[0011] The reference numerals are:

[0012] 1 - machine base 2 - input shaft

[0013] 3 - output shaft 4 - fork shaft

[0014] 5 - fork 6 - manual-electric switching shaft

[0015] 7 - coupling 8 - hand crank shaft

[0016] 9 - transmission bevel gear 10 - spring

[0017] 11 - small bevel gear 12 - bearing seat

[0018] 13 - bearing. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In order to make the purpose, technical solutions and advantages of the utility model more clear and understandable, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not limited to the present utility model.

[0020] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model 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 should not be construed as a limitation to the present utility model.

[0021] As Figures 1 to 3 shown, a manual and electric switching device for a cable reel includes a machine base 1, an input shaft 2, an output shaft 3, a shift fork shaft 4, a shift fork 5, a manual and electric switching shaft 6, a coupling 7, a hand crank shaft 8, a transmission bevel gear 9, and a spring 10. The machine base 1 is of an overall box-shaped structure, including a bottom plate, upper side plates, lower side plates, left side plates, and right side plates. A horizontal partition and a vertical partition are provided inside the machine base. The vertical partition and the horizontal partition form a T shape, thereby dividing the interior of the entire machine base 1 into an upper cavity, a left cavity, and a right cavity. Most of the output shaft 3 is located in the left cavity. A transmission bevel gear 9 is installed in the middle of the output shaft 3. The left end of the output shaft 3 passes through the shaft hole of the left side plate and extends outwards. The right end of the output shaft 3 passes through the shaft hole of the vertical partition and enters the right cavity. The input shaft 2 and the output shaft 3 are located on the same straight line. The left end of the input shaft 2 is inserted into the right cavity through the shaft hole of the right side plate. The right end of the output shaft 3 is connected to the left end of the input shaft 2 through a coupling 7. The hand crank shaft 8 is perpendicular to the output shaft 3. The inner end of the hand crank shaft 8 is located in the left cavity and is provided with a small bevel gear 11, which meshes with the transmission bevel gear 9. The outer end of the hand crank shaft 8 is sequentially passed through the shaft holes of the horizontal partition and the upper side plate and is used to install a handle. The shift fork shaft 4 is perpendicular to the input shaft 2. Most of the shift fork shaft 4 is located in the right cavity. The lower end of the shift fork shaft 4 passes through the shaft hole of the lower side plate. The upper end of the shift fork shaft 4 passes through the shaft hole of the horizontal partition and enters the upper cavity and is provided with a gear. The inner end of the manual and electric switching shaft 6 is located in the upper cavity and is in meshing transmission with the gear on the shift fork shaft 4 through a gear. The outer end of the manual and electric switching shaft 6 passes through the shaft hole of the upper side plate and is used to install a handle. A shift fork 5 is installed at the position of the shift fork shaft 4 corresponding to the coupling 7. Driven by the manual and electric switching shaft 6 and the shift fork shaft 4, the shift fork 5 can make the coupling 7 in a connected or disconnected state.

[0022] Specifically, the coupling 7 includes a driving piece and a linkage piece. The linkage piece is fixed to the right end of the output shaft 3. The driving piece is spline-connected to the input shaft 2. A spring 10 is installed between the driving piece and the right side plate. Under the action of the spring 10, the driving piece moves closer to the linkage piece, so that the pin on the driving piece of the coupling is inserted into the waist-shaped groove of the linkage piece of the coupling, thereby realizing the connection of the coupling 7. The input shaft 2 drives the output shaft 3 to rotate through the coupling 7. When it is necessary to switch to the manual mode, first use the handle to rotate the manual-electric switching shaft 6, which in turn drives the fork shaft 4 and the fork 5 to rotate. The fork 5 pushes the driving piece to disengage from the linkage piece. At this time, the coupling 7 does not work, and the input shaft 2 cannot drive the output shaft 3 to rotate. Then use the handle to rotate the hand crank shaft 8. The small bevel gear 11 on the hand crank shaft 8 meshes with the transmission bevel gear 9 of the output shaft 3 to drive the output shaft 3 to rotate.

[0023] As Figures 1 to 3 shown, bearing seats 12 and bearings 13 are installed at the shaft hole positions on the upper side plate, lower side plate, left side plate, right side plate, transverse partition plate and vertical partition plate.

[0024] In this embodiment, a manual-electric switching device is specifically designed for the electric cable reel to ensure that the cable can be normally retracted and extended when the electric cable reel is powered off or the motor fails. The structure of the device is ingenious and reasonable, and it is easy to operate.

[0025] The above embodiment is a preferred implementation scheme of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the technical solution of the present invention is within the scope of the patent of the present invention.

[0026] In order to make it easier for those of ordinary skill in the art to understand the improvements of the present invention over the prior art, some of the drawings and descriptions of the present invention have been simplified. And for the sake of clarity, some other elements have also been omitted in this application document. Those of ordinary skill in the art should be aware that these omitted elements may also constitute the content of the present invention.

Claims

1. A manual electric switching device for a cable drum, characterized in that: The invention comprises a machine base (1), an input shaft (2), an output shaft (3), a shift fork shaft (4), a shift fork (5), a manual electric switching shaft (6), a coupling (7), a hand-cranked shaft (8), and a transmission bevel gear (9); the machine base (1) is a box-shaped structure as a whole, comprising a bottom plate, an upper side plate, a lower side plate, a left side plate, and a right side plate; a horizontal partition and a vertical partition are arranged in the machine base (1); the vertical partition and the horizontal partition form a T-shape, thereby dividing the entire machine base into an upper cavity, a left cavity, and a right cavity; the output shaft (3) is mostly located in the left cavity; a transmission bevel gear (9) is installed in the middle of the output shaft (3); the left end of the output shaft (3) extends outward through the shaft hole of the left plate; the right end of the output shaft (3) passes through the shaft hole of the vertical partition and enters the right cavity; the left end of the input shaft (2) is inserted into the right cavity through the shaft hole of the right plate; the right end of the output shaft (3) and the left end of the input shaft (2) are connected through the coupling (7). The inner end of the hand-cranked shaft (8) is located in the left cavity and is equipped with a small bevel gear (11), which meshes with the transmission bevel gear (9). The outer end of the hand-cranked shaft (8) is sequentially passed through the shaft holes of the diaphragm and the upper side plate and is used to install the handle; the fork shaft (4) is mostly located in the right cavity, the lower end of the fork shaft (4) passes through the shaft hole of the lower side plate, and the upper end of the fork shaft (4) passes through the shaft hole of the diaphragm and enters the upper cavity and A gear is installed, the inner end of the manual electric switching shaft (6) is located in the upper cavity and is meshed with the gear on the fork shaft (4) through the gear, and the outer end of the manual electric switching shaft (6) is passed through the shaft hole of the upper side plate for installing a handle; the fork shaft (4) is installed with a fork (5) at a position corresponding to the coupling (7), and driven by the manual electric switching shaft (6) and the fork shaft (4), the fork (5) can put the coupling (7) in a connected or disconnected state.

2. The manual electric switching device for a cable drum according to claim 1, characterized in that: The coupling (7) comprises a drive plate and a linkage plate, wherein the linkage plate is fixed to the right end of the output shaft (3), the drive plate is spline-connected to the input shaft (2), a spring (10) is installed between the drive plate and the right side plate, and the drive plate moves toward the linkage plate under the action of the spring (10), so that the latch on the coupling drive plate is inserted into the waist groove of the coupling linkage plate, thereby realizing the connection of the coupling (7), and the input shaft (2) drives the output shaft (3) to rotate through the coupling (7).

3. The manual electric switching device for a cable drum according to claim 1, characterized in that: Axial holes of the upper side plate, the lower side plate, the left side plate, the right side plate, the transverse partition plate, and the vertical partition plate are all installed with bearing seats (12) and bearings (13).

Images