Electric hand crank for switch machine

Abstract

The utility model provides an electric hand crank for a point switch, which comprises a hand crank, a connecting rod, a sleeve and a power component, the hand crank is rotatably connected with the connecting rod, one end of the sleeve is rotatably connected with the connecting rod, the other end of the sleeve is used for being connected with the point switch, the power component is mounted on the sleeve, and the power component is connected with the connecting rod. The power assembly comprises a motor, and the motor and the center shaft of the sleeve are located on the same axis and can drive the sleeve to rotate. The manual turnout has a manual mode and an electric mode at the same time, in the electric mode, the time of hand-cranking of the turnout can be saved, workers can complete the skill easily, when a battery is out of power or a motor breaks down, the manual mode can be used, the fault condition can be dealt with better, the working efficiency is improved, meanwhile, safety is guaranteed, the overall structure is simple and clear, and the operation is convenient. And free folding and convenient storage are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of railway turnout switching equipment, in particular to an electric hand crank for a switch machine. Background Art

[0002] The main function of rail transit turnouts is to enable vehicles to switch from one track to another, so as to give full play to the line's capacity. Usually, the action of the turnout is realized by the switch machine, such as from the fixed position to the reverse position, and from the reverse position to the fixed position. Under normal conditions of the signal interlocking system, the switch machine automatically realizes the corresponding action according to the action instruction. When the signal interlocking system fails, the switch machine cannot move automatically. At this time, it is necessary to manually use the hand crank to manually crank the turnout, so that the switch machine can move and realize the turnout rotation. The hand crank commonly used at present is composed of a hand crank, a connecting rod and a sleeve. When in use, the sleeve is put on the interface of the switch machine, and then the hand crank is rotated to complete the corresponding action.

[0003] This kind of hand crank is completed by the staff's wrist strength, which is not friendly to the staff. At present, there is an electric hand crank on the market, which is assisted by an electric drill. The specific method is to directly fasten the sleeve part to the electric drill head, and then press the electric drill rotation button to achieve the corresponding action of the switch machine. However, this kind of electric hand crank cannot take into account the function of manual hand crank. If the electric drill is out of power, the switch machine cannot be realized. Utility Model Content

[0004] In view of the above technical problems, the utility model provides an electric hand crank for a switch machine, which has both a manual mode and an electric mode and can better cope with fault situations.

[0005] The utility model adopts the following technical solutions to achieve the technical purpose:

[0006] An electric hand crank for a switch machine comprises a hand crank, a connecting rod, a sleeve and a power assembly. The hand crank and the connecting rod are rotatably connected. One end of the sleeve is rotatably connected to the connecting rod, and the other end is used to connect to the switch machine. The sleeve is mounted with a power assembly, and the power assembly comprises an electric motor. The central axis of the electric motor and the sleeve are located on the same axis and can drive the sleeve to rotate.

[0007] Furthermore, the power assembly also includes a controller connected to the motor to control the rotation of the motor.

[0008] Furthermore, the power assembly also includes a start button for controlling the start and stop of the power assembly.

[0009] Furthermore, the power assembly also includes a power interface for connecting to a power source.

[0010] Further, the power assembly further includes a direction conversion switch for selecting the rotation direction of the sleeve.

[0011] Further, the hand crank and the connecting rod are connected by a pin shaft, and the sleeve and the connecting rod are connected by a pin shaft.

[0012] Further, a first limit button is installed at the connection between the hand crank and the connecting rod, and a second limit button is installed at the connection between the sleeve and the connecting rod.

[0013] Further, when the first limit button and the second limit button are in the pressed state, the hand crank, the connecting rod and the sleeve rotate relative to each other, and the hand crank and the sleeve are both perpendicular to the connecting rod or in a straight line.

[0014] The beneficial effects of the present utility model are as follows: It has both a manual mode and an electric mode at the same time. In the electric mode, the time for manually operating the switch can be saved, enabling the staff to complete this skill more easily. When the battery runs out of power or the motor fails, the manual mode can be used to better handle the failure situation, improving work efficiency and ensuring safety at the same time. The overall structure is simple and clear, and it can be freely folded and stored conveniently. Description of the Drawings

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model.

[0016] Reference Signs:

[0017] 1 - Hand crank, 2 - Connecting rod, 3 - Sleeve, 4 - Power assembly, 5 - Direction conversion switch, 6 - Power supply interface, 7 - Limit button, 8 - Pin shaft, 9 - Start button. Detailed Embodiment

[0018] In the description of this embodiment, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "center", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this utility model is usually placed during use. 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. Additionally, unless otherwise specified, the components used in this application are commercially available components, and the connection between different components can be achieved by conventional technical means.

[0019] The present utility model will be further described in detail below with reference to the drawings and specific embodiments.

[0020] The present utility model provides an electric hand crank for a switch machine, as Figure 1As shown, the electric hand crank includes a hand crank 1, a connecting rod 2, a sleeve 3 and a power assembly 4. The hand crank 1 and the connecting rod 2 are rotatably connected. One end of the sleeve 3 is rotatably connected to the connecting rod 2, and the other end is used to connect to the switch machine. A power assembly 4 is installed on the sleeve 3. The power assembly 4 includes an electric motor, and the electric motor and the central axis of the sleeve 3 are on the same axis and can drive the sleeve 3 to rotate.

[0021] Preferably, the power assembly 4 further includes a controller connected to the electric motor to control the rotation of the electric motor.

[0022] Preferably, the power assembly 4 further includes a start button 9 for controlling the start and stop of the power assembly 4.

[0023] Preferably, the power assembly 4 further includes a power interface 6 for connecting to a power supply.

[0024] Preferably, the power assembly 4 further includes a direction change switch 5 for selecting the rotation direction of the sleeve 3.

[0025] It can be understood that those skilled in the art can select the models of the various components (including the electric motor, controller, start button, direction change switch and power interface) suitable for the power assembly according to actual needs and install them, as long as the above functions can be achieved, which will not be elaborated here.

[0026] Preferably, the hand crank 1 and the connecting rod 2 are connected by a pin shaft 8, and the sleeve 3 and the connecting rod 2 are connected by a pin shaft 8.

[0027] Preferably, a first limit button is installed at the connection of the hand crank 1 and the connecting rod 2, and a second limit button is installed at the connection of the sleeve 3 and the connecting rod 2. The first limit button and the second limit button can adopt the same structure, and both are shown as limit buttons 7 in the figure. Here, "first" and "second" are only for more clearly corresponding to different connection positions when expressing.

[0028] Preferably, when the first limit button and the second limit button are in the pressed state, the hand crank 1, the connecting rod 2 and the sleeve 3 rotate relative to each other, and the hand crank 1 and the sleeve 3 are both perpendicular to the connecting rod 2 or in a straight line to adapt to different working modes.

[0029] The operation method of the electric hand crank is as follows: In normal circumstances, use the electric mode. Socket the end of the sleeve 3 at the interface of the switch machine, press the first limit button installed at the connection of the hand crank 1 and the connecting rod 2 and the second limit button installed at the connection of the sleeve 3 and the connecting rod 2 respectively, so that the hand crank 1, the connecting rod 2 and the sleeve 3 are in the same straight line, and release the two limit buttons 7 to lock the current state. Connect the power supply at the power interface 6, select the rotation direction of the sleeve 3 through the direction change switch 5, and press the start button 9. At this time, the controller controls the motor to rotate, and then drives the sleeve 3 to rotate to achieve the action of the switch machine.

[0030] When there is no power or the motor fails, use the manual mode. Socket the end of the sleeve 3 at the interface of the switch machine, press the first limit button installed at the connection of the hand crank 1 and the connecting rod 2 and the second limit button installed at the connection of the sleeve 3 and the connecting rod 2 respectively, so that both the hand crank 1 and the sleeve 3 are perpendicular to the connecting rod 2, and release the two limit buttons 7 to lock the current state. Rotate the hand crank 1 to drive the sleeve 3 to rotate to achieve the action of the switch machine.

[0031] Although the embodiments of the present invention are described in the specification, these embodiments are only for reference and should not limit the protection scope of the present invention. All omissions, substitutions and changes made within the scope of the gist of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric hand crank for a switch machine, characterized in that, It includes a hand crank, a connecting rod, a sleeve and a power assembly. The hand crank is rotatably connected to the connecting rod. One end of the sleeve is rotatably connected to the connecting rod, and the other end is used to connect to a switch machine. A power assembly is installed on the sleeve. The power assembly includes an electric motor, and the electric motor and the central axis of the sleeve are on the same axis and can drive the sleeve to rotate.

2. The electric hand crank for a switch machine according to claim 1, characterized in that, The power assembly further includes a controller connected to the electric motor to control the rotation of the electric motor.

3. An electric hand crank for a switch machine according to claim 1, characterized in that, The power assembly further includes a start button for controlling the start and stop of the power assembly.

4. The electric hand crank for a switch machine according to claim 1, characterized in that, The power assembly further includes a power interface for connecting to a power source.

5. An electric hand crank for a switch machine according to claim 1, characterized in that, The power assembly further includes a direction change switch for selecting the rotation direction of the sleeve.

6. The electric hand crank for a switch machine according to claim 1, wherein The hand crank and the connecting rod are connected by a pin shaft, and the sleeve and the connecting rod are connected by a pin shaft.

7. The electric hand crank for a switch machine according to claim 6, characterized in that, A first limit button is installed at the connection of the hand crank and the connecting rod, and a second limit button is installed at the connection of the sleeve and the connecting rod.

8. The electric hand crank for a switch machine according to claim 7, characterized in that, When the first limit button and the second limit button are in the pressed state, the hand crank, the connecting rod and the sleeve rotate relative to each other, and the hand crank and the sleeve are both perpendicular to the connecting rod or in a straight line.

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