Bridge crane electric hoist control box

Abstract

The bridge crane electric hoist control box comprises a box body, a control circuit is arranged in the box body, a plurality of buttons are arranged on the rear side of the upper end face of the box body, an indication board is arranged on the side of each button, and a first control rod and a second control rod which are arranged on the two sides are arranged on the front side of the upper end face of the box body. The buttons, the first operating lever and the second operating lever are in circuit connection with the control circuit; a first socket, a second socket and a third socket are arranged between the first operating rod and the second operating rod along the middle line of the upper end face of the box body at intervals, and a fourth socket is arranged on the side, facing the first operating rod, of the second socket; a first baffle plate is connected between the first socket and the second socket, and a rotatable second baffle plate is connected between the second socket and the third socket. The device is simple in structure, by setting the position of the control rod and matching with isolation of the first baffle and the second baffle, the phenomenon of accidental touch in the operation process can be avoided, and safety is improved.

Description

Technical Field

[0001] This utility model relates to a control box, and more particularly to a control box for an electric hoist of a bridge crane. Background Technology

[0002] Bridge cranes are lifting equipment that spans across workshops, warehouses, and material yards for material handling. The bridge frame of a bridge crane runs longitudinally along rails laid on elevated structures on both sides, making full use of the space beneath the bridge frame for material handling without obstruction from ground equipment. It is the most widely used and numerous type of lifting machinery. In power plants, heavy objects are frequently lifted. Operators sit in the control room and use buttons and handles on the control box to operate the lifting and running mechanisms of the crane and trolley. The control box is located on the left and right sides of the seat, controlling the movement of the crane and trolley respectively. The control box typically has two joysticks and several buttons. The joysticks are arranged horizontally. When controlling one joystick, the arm movement can easily cause accidental activation of the other joystick, especially in the trolley control box where the trolley control joystick and hook control joystick are close together, leading to frequent accidental activations.

[0003] A search revealed no control box designed to prevent accidental joystick activation. Summary of the Invention

[0004] This invention provides a control box for an electric hoist of a bridge crane that is suitable for use in confined spaces and can prevent accidental contact with adjacent control levers.

[0005] The purpose of this application is achieved as follows: The control box for the electric hoist of the bridge crane includes a box body, a control circuit is installed inside the box body, several buttons are installed on the rear side of the upper end face of the box body, and an indicator is installed on the side of each button. A first operating lever and a second operating lever are installed on the front side of the upper end face of the box body, arranged on both sides. Each button, the first operating lever, and the second operating lever are connected to the control circuit. A first socket, a second socket, and a third socket are arranged at intervals along the center line of the upper end face of the box body between the first operating lever and the second operating lever. A fourth socket is arranged on the side of the second socket facing the first operating lever. A first baffle is connected between the first socket and the second socket, and a rotatable second baffle is connected between the second socket and the third socket.

[0006] The first and second control levers are located on the left and right sides of the center line, respectively, and are arranged in a front-to-back manner.

[0007] A first plug rod is inserted into the first socket, and the first plug rod is covered with a first sleeve.

[0008] A second plug rod is inserted into the second socket. The second plug rod is covered by a second sleeve. The second sleeve includes fixed sleeves located on the upper and lower sides, and a rotating sleeve is held between the two fixed sleeves.

[0009] A third plug is inserted into the third or fourth socket, and a third sleeve is wrapped around the third plug.

[0010] One end of the aforementioned first baffle is connected to the first sleeve, and the other end is connected to the fixed sleeve; one end of the aforementioned second baffle is connected to the rotating sleeve, and the other end is connected to the third sleeve.

[0011] This application isolates two control levers using interchangeable baffles. By varying the baffle's insertion position, two separate spaces are created, isolating the control lever not currently in use from the one in use. This application has a simple structure, and through the control lever positioning, combined with the isolation provided by the first and second baffles, accidental contact during operation can be avoided, thus improving safety. Attached Figure Description

[0012] The specific structure of this application is given by the following figures and embodiments:

[0013] Appendix Figure 1 This is a schematic diagram of the structure of this application;

[0014] Appendix Figure 2 This is a schematic diagram of the structure of this application after the second joystick is isolated.

[0015] Legend: 1. First control lever, 2. First socket, 3. First sleeve, 4. First insertion rod, 5. First baffle, 6. Third insertion rod, 7. Second insertion rod, 8. Fixed sleeve, 9. Rotating sleeve, 10. Second control lever, 11. Third socket, 12. Button, 13. Indicator sign, 14. Second socket, 15. Second baffle, 16. Fourth socket, 17. Third sleeve, 18. Box body. Detailed Implementation

[0016] This application is not limited to the following embodiments, and the specific implementation method can be determined according to the technical solution of this application and the actual situation.

[0017] In this utility model, for ease of description, the description of the relative positions of the components is based on the appendix to the specification. Figure 1 The layout is described using a diagrammatic method, such as the positional relationships of top, bottom, left, and right, which are based on the instructions attached. Figure 1 The orientation of the layout is determined by the direction of the map.

[0018] The present invention will be further described below with reference to embodiments and accompanying drawings. Embodiments: as shown in the attached drawings. Figure 1-2As shown, the control box for the electric hoist of the bridge crane includes a box body 18. A control circuit is installed inside the box body 18. Several buttons 12 are located on the rear side of the upper surface of the box body 18, and an indicator sign 13 is located next to each button 12. A first operating lever 1 and a second operating lever 10 are arranged on opposite sides of the upper surface of the box body 18. Each button 12, first operating lever 1, and second operating lever 10 are connected to the control circuit. A first socket 2, a second socket 14, and a third socket 11 are spaced apart along the center line of the upper surface of the box body 18 between the first operating lever 1 and the second operating lever 10. A fourth socket 16 is located on the side of the second socket 14 facing the first operating lever 1. A first baffle 5 connects the first socket 2 and the second socket 14, and a rotatable second baffle 15 connects the second socket 14 and the third socket 11. The control circuit is used to control the on / off state of the motor circuits corresponding to the crane's main and trolley components, and the motor circuits corresponding to the large and small hooks. This is prior art and not the subject of this invention, so it will not be described in detail here.

[0019] Furthermore, the first control lever 1 and the second control lever 10 are positioned on the left and right sides of the center line, respectively, and are arranged in a front-to-back manner.

[0020] Furthermore, a first plug rod 4 is inserted into the first socket 2, and the first plug rod 4 is covered by a first sleeve 3.

[0021] Furthermore, a second insertion rod 7 is inserted into the second socket 14, and the second insertion rod 7 is covered by a second sleeve. The second sleeve includes fixed sleeves 8 located on the upper and lower sides, and a rotating sleeve 9 is held between the two fixed sleeves 8. The fixed sleeves 8 and the rotating sleeve 9 are hollow cylindrical tubes.

[0022] Furthermore, a third plug rod 6 is inserted into the third socket 11 or the fourth socket 16, and a third sleeve 17 is wrapped around the third plug rod 6.

[0023] Furthermore, one end of the aforementioned first baffle 5 is connected to the first sleeve 3, and the other end is connected to the fixed sleeve 8; one end of the aforementioned second baffle 5 is connected to the rotating sleeve 9, and the other end is connected to the third sleeve 17.

[0024] The first socket 2, the second socket 14, the third socket 11, and the fourth socket 16 have the same structure, all being hollow tubes with open upper ends; the first sleeve 3 and the third sleeve 17 have the same structure, both being hollow round tubes.

[0025] When only the first joystick 1 needs to be operated, the third plug 6 is inserted into the third socket 11. At this time, the first baffle 5 is located to the right of the first joystick 1, and the second baffle 15 is located to the left of the second joystick 10. The first baffle 5 and the second baffle 15 block the first joystick 1 and the second joystick 10, arranged in a front-to-back manner, thus forming an obstruction between the first joystick 1 and the second joystick 10. When operating the first joystick 1, due to the obstruction of the first baffle 5 and the second baffle 15, even if the arm swings significantly, it will not touch the second joystick 10.

[0026] When only the second joystick 10 needs to be operated, the third plug 6 is pulled out of the third socket 11 and inserted into the fourth socket 16. The second baffle 15 rotates accordingly. At this time, the first baffle 5 is located to the right of the first joystick 1, and the second baffle 15 is located behind the first joystick 1, forming an L-shape that semi-encloses the first joystick 1. The second baffle 15 can then be operated. Since the second joystick 10 is located to the right rear of the first joystick 1, and the second baffle 15 is located to the left front of the second joystick 10, the second baffle 15 will not affect the operation of the second joystick 10. During operation of the second joystick 10, the arm is blocked by the second baffle 15 and will not touch the first joystick 1.

[0027] When other operations are required, different buttons can be used to control the on / off of the main power supply, the on / off of the start power supply, and the emergency stop action. The indicator lights set on the cabinet 18 can be used to visually determine whether each operation is in place.

[0028] The above description is merely an example for clearly illustrating this application and is not intended to limit the implementation of this application. Any obvious variations or modifications derived from the technical solutions of this application are still within the protection scope of this application.

Claims

1. A control box for an electric hoist of a bridge crane, comprising a box body, a control circuit disposed within the box body, a plurality of buttons disposed on the rear side of the upper end face of the box body, each button having an indicator plate disposed on its side, and a first operating lever and a second operating lever disposed on opposite sides of the upper end face of the box body, wherein each button, the first operating lever, and the second operating lever are connected to the control circuit, characterized in that: A first socket, a second socket, and a third socket are provided at intervals along the center line of the upper end face of the housing between the first and second control levers, and a fourth socket is provided on the side of the second socket facing the first control lever; a first baffle is connected between the first socket and the second socket, and a rotatable second baffle is connected between the second socket and the third socket.

2. The control box for the electric hoist of the bridge crane as described in claim 1, characterized in that: The first and second control levers are located on the left and right sides of the center line, respectively, and are arranged in a front-to-back manner.

3. The control box for the electric hoist of the bridge crane as described in claim 1 or 2, characterized in that: A first plug rod is inserted into the first socket, and the first plug rod is covered with a first sleeve.

4. The control box for the electric hoist of the bridge crane as described in claim 3, characterized in that: A second plug rod is inserted into the second socket. The second plug rod is covered by a second sleeve. The second sleeve includes fixed sleeves located on the upper and lower sides, and a rotating sleeve is held between the two fixed sleeves.

5. The control box for the electric hoist of the bridge crane as described in claim 4, characterized in that: A third plug is inserted into the third or fourth socket, and a third sleeve is wrapped around the third plug.

6. The control box for the electric hoist of the bridge crane as described in claim 5, characterized in that: One end of the aforementioned first baffle is connected to the first sleeve, and the other end is connected to the fixed sleeve; one end of the aforementioned second baffle is connected to the rotating sleeve, and the other end is connected to the third sleeve.

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