Electric book ladder

Abstract

The invention discloses an electric book ladder, comprising a cabinet body, wherein both left and right ends of the upper end of the cabinet body are fixedly connected with a stepper motor, a general controller is installed on the stepper motor, the general controller comprises a forward and reverse controller, a speed controller and a signal transceiver, and a signal controller is matched with the signal transceiver. The signal controller is handheld and convenient for controlling the stepper motor, the stepper motor is connected with a reduction box, the reduction box is connected with a transmission rod one, the transmission rod one is connected with a chain through a sprocket, and a transmission rod two is fixedly connected to the chain. The invention has a simple structure, strong practicality and is easy to use. The stepper motor works to drive the chain to rotate, so that the escalator can be moved to a required position without manual operation, and the entire transmission device is located on the upper part of the cabinet body. When the escalator is not in use, it is directly placed on the cabinet body, which can reduce the occupied space.

Description

Technical Field

[0001] The invention relates to the technical field of book ladders, in particular to an electric book ladder. Background Art

[0002] At present, in order to increase the storage capacity of books, most of the bookshelves in libraries are set higher. When librarians need to access books on the upper levels, they usually use ordinary ladders for convenience.

[0003] However, it is time-consuming and laborious to move the ladder frequently. Since the existing common ladder can only be placed aside, there is a danger of tipping over, which is very troublesome. Therefore, those skilled in the art provide an electric book ladder to solve the problems raised in the above background technology. Summary of the invention

[0004] The object of the present invention is to provide an electric book ladder to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An electric book ladder comprises a cabinet body, wherein the left and right ends of the upper end of the cabinet body are fixedly connected to a stepper motor, a general controller is installed on the stepper motor, the general controller comprises a forward and reverse controller, a speed controller and a signal transceiver, and a signal controller is matched with the signal transceiver. The signal controller is handheld and convenient for controlling the stepper motor, the stepper motor is connected to a reduction box, the reduction box is connected to a transmission rod 1, the transmission rod 1 is connected to a chain through a sprocket, a transmission rod 2 is fixedly connected to the chain, the rear side of the chain is fixedly connected to a guide rail with the cabinet body, the left and right ends of the front side of the transmission rod 2 are fixedly connected, a cross bar is fixed in the middle of the front fork, a connecting piece is connected to the cross bar through a bearing, the end of the connecting piece away from the front fork is slidably connected in the guide rail, the guide rail is fixedly connected to the upper rear side of the escalator, the lower end of the escalator is rotatably connected to a roller 1, and the roller 1 is arranged parallel to the escalator.

[0007] As a further solution of the present invention, protective covers are provided on the upper and lower sides of the chain to prevent oil leakage.

[0008] As a further solution of the present invention, the guide rail is slidably connected in the transmission rod 2, and a plurality of rollers 2 are provided in the transmission rod 2 to play the role of supporting and reducing friction.

[0009] As a further solution of the present invention, the second roller is composed of flanges on both sides and a bearing in the middle. The flanges are clamped on the protrusions of the guide rail, and the clamping surface is arc-shaped to prevent the transmission rod 2 from shaking up and down and increase stability.

[0010] As a further solution of the present invention, the left and right sides of the end of the connecting piece close to the guide rail are cylindrical, the cylinder is clamped in the guide rail, and the upper and lower ends of the guide rail are sealed to prevent the connecting piece from detaching.

[0011] As a further solution of the present invention, the rear side of the guide rail and the front side of the front fork are both provided with zigzag lines to increase friction.

[0012] As a further solution of the present invention, the lower side of the roller one is lower than the lowest end of the escalator, and an anti-sliding block is fixed to the rear side of the roller one. The anti-sliding block is trapezoidal, which increases the contact area when the escalator is tilted.

[0013] As a further solution of the present invention, a brake pad is provided above the anti-sliding block, the brake pad is fixed to the rear side of the escalator, and a fixing bolt is threadedly connected to the position of the roller one at the lower end of the escalator.

[0014] As a further solution of the present invention, a conical shell is provided on the front side of the fixing bolt, and a cylindrical lever is provided inside the shell, which facilitates the rotation of the fixing bolt and provides support for people when going down the escalator.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention has a simple structure, strong practicability and is easy to use. The stepping motor works to drive the chain to rotate, so that the escalator can be moved to a desired position without manual operation.

[0017] 2. The entire transmission device is located on the upper part of the cabinet. When the escalator is not in use, it can be directly placed on the cabinet to reduce the space occupied. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of an electric book ladder of the present invention;

[0019] Figure 2 It is a structural schematic diagram of a connecting member in an electric book ladder of the present invention;

[0020] Figure 3 It is a structural schematic diagram of a roller 1 in an electric book ladder of the present invention;

[0021] Figure 4 It is a structural schematic diagram of roller 2 in an electric book ladder of the present invention;

[0022] Figure 5 The present invention is a schematic diagram of the three-dimensional structure of a front fork in an electric book ladder.

[0023] In the figure: 1. cabinet; 2. stepper motor; 3. reduction box; 4. transmission rod 1; 5. chain; 6. transmission rod 2; 7. front fork; 8. connecting piece; 9. guide rail; 10. escalator; 11. roller 1; 12. anti-sliding block; 13. brake pad; 14. main controller; 15. roller 2; 16. guide rail; 17. fixing bolt. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figures 1 to 5 In the embodiment of the present invention, an electric book ladder includes a cabinet 1, and a stepper motor 2 is fixedly connected to both left and right ends of the upper end of the cabinet 1. A master controller 14 is installed on the stepper motor 2. The master controller 14 includes a forward and reverse controller, a speed controller and a signal transceiver. A signal controller is matched with the signal transceiver. The signal controller is handheld and convenient for controlling the stepper motor 2. The stepper motor 2 is connected to a reduction box 3, and the reduction box 3 is connected to a transmission rod 1 4. The transmission rod 1 4 is connected to a chain 5 through a sprocket. A transmission rod 2 6 is fixedly connected to the chain 5. Protective covers are provided on the upper and lower sides of the chain 5 to prevent oil leakage. A guide rail 16 is fixedly connected to the cabinet 1 on the rear side of the chain 5. The guide rail 16 is slidably connected to the transmission rod 2 6. A plurality of rollers 2 15 are provided in the transmission rod 2 6 to support and reduce friction. The rollers 2 15 are composed of flanges on both sides and a bearing in the middle. The flanges are clamped on the protrusions of the guide rails 16, and the clamping surface is arc-shaped to prevent the transmission rod 2 6 from shaking up and down, thereby increasing stability.

[0026] Two front forks 7 are fixedly connected to the left and right ends of the front side of the transmission rod 26, a cross bar is fixed in the middle of the front fork 7, a connecting piece 8 is connected to the cross bar through a bearing, and the end of the connecting piece 8 away from the front fork 7 is slidably connected in the guide rail 9, and the guide rail 9 is fixedly connected to the upper rear side of the escalator 10. The left and right sides of the end of the connecting piece 8 close to the guide rail 9 are cylindrical, and the cylindrical shape is clamped in the guide rail 9, and the upper and lower ends of the guide rail 9 are sealed to prevent the connecting piece 8 from detaching. The rear side of the guide rail 9 and the front side of the front fork 7 are provided with broken line patterns to increase friction. The lower end of the escalator 10 is rotatably connected to a roller 11 The roller 11 is arranged parallel to the escalator 10, the lower side of the roller 11 is lower than the lowest end of the escalator 10, and an anti-slip block 12 is fixed to the rear side of the roller 11. The anti-slip block 12 is trapezoidal, and the contact area is increased when the escalator 10 is tilted. A brake pad 13 is arranged above the anti-slip block 12, and the brake pad 13 is fixed to the rear side of the escalator 10. The lower end of the escalator 10 corresponds to the position of the roller 11 and is threadedly connected with a fixing bolt 17. A conical shell is provided on the front side of the fixing bolt 17, and a cylindrical lever is provided inside the shell, which is convenient for rotating the fixing bolt 17 and can provide support for people when getting off the escalator 10.

[0027] The working principle of the present invention is: when in use, the stepper motor 2 is controlled to rotate by the handheld signal controller, and the chain 5 is driven to rotate by the reduction box 3, thereby driving the transmission rod 2 6 to move, and the friction during the movement of the escalator 10 is reduced by the roller 11 and the roller 2 15, so as to drive the escalator 10 to move. After reaching the appropriate position, the stepper motor 2 is stopped, and the escalator 10 is pushed backward. After reaching the appropriate angle, the escalator 10 is pressed downward, and the connecting piece 8 is rotated so that the rear side of the guide rail 9 is pressed against the front side of the front fork 7. At the same time, the fixing bolt 17 is tightened, and the rear end of the fixing bolt 17 fixes the roller 11, and the anti-sliding block 12 on the roller 11 is against the brake pad 13 to fix the lower end of the escalator 10. At this time, the escalator 10 can be climbed. After taking the items, the fixing bolt 17 can be loosened, and the escalator 10 can be pushed toward the cabinet 1, and the escalator 10 can be leaned against the cabinet 1 to reduce the occupied space and be taken as needed.

[0028] The present invention has a simple structure, strong practicality and is easy to use. The stepping motor 2 works to drive the chain 5 to rotate, so that the escalator 10 can be moved to a required position without manual operation. The entire transmission device is located on the upper part of the cabinet 1. When the escalator 10 is not in use, it is directly placed on the cabinet 1, which can reduce the occupied space.

[0029] 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. An electric book ladder, comprising a cabinet (1), characterized in that: The upper left and right ends of the cabinet (1) are fixedly connected to a stepper motor (2), a master controller (14) is installed on the stepper motor (2), the master controller (14) comprises a forward and reverse controller, a speed controller and a signal transceiver, a signal controller is matched with the signal transceiver, and the signal controller is handheld, the stepper motor (2) is connected to a reduction box (3), the reduction box (3) is connected to a transmission rod (4), the transmission rod (4) is connected to a chain (5) via a sprocket, and the chain (5) is fixedly connected to a transmission rod (6) The rear side of the chain (5) is fixedly connected to the cabinet (1) with a guide rail (16), the left and right ends of the front side of the second transmission rod (6) are fixedly connected to two front forks (7), a cross bar is fixed in the middle of the front fork (7), a connecting piece (8) is connected to the cross bar through a bearing, the end of the connecting piece (8) away from the front fork (7) is slidably connected in the guide rail (9), the guide rail (9) is fixedly connected to the upper rear side of the escalator (10), the lower end of the escalator (10) is rotatably connected to a roller one (11), and the roller one (11) is arranged parallel to the escalator (10); The guide rail (16) is slidably connected in the transmission rod (6), and a plurality of rollers (15) are arranged in the transmission rod (6). The rollers (15) are composed of flanges on both sides and a bearing in the middle. The flanges are clamped on the protrusions of the guide rail (16), and the clamping surface is arc-shaped. The left and right sides of the end of the connecting member (8) close to the guide rail (9) are cylindrical, the cylindrical shape is clamped in the guide rail (9), and the upper and lower ends of the guide rail (9) are sealed. The rear side of the guide rail (9) and the front side of the front fork (7) are both provided with broken line patterns.

2. The electric book ladder according to claim 1, characterized in that: Protective covers are provided on the upper and lower sides of the chain (5).

3. The electric book ladder according to claim 1, characterized in that: The lower side of the roller one (11) is lower than the lowest end of the escalator (10), and an anti-sliding block (12) is fixed to the rear side of the roller one (11), and the anti-sliding block (12) is trapezoidal.

4. The electric book ladder according to claim 3, characterized in that: A brake pad (13) is provided above the anti-sliding block (12), the brake pad (13) is fixed to the rear side of the escalator (10), and a fixing bolt (17) is threadedly connected to the position of the lower end of the escalator (10) corresponding to the roller 1 (11).

5. The electric book ladder according to claim 4, characterized in that: A conical shell is provided on the front side of the fixing bolt (17), and a cylindrical lever is provided inside the shell.

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