Excavator electrical switch

Abstract

The utility model provides an electric switch of an excavator, which belongs to the technical field of excavators and comprises a protective shell, the protective shell is fixed on an outer plate of a rotary platform of the excavator and positioned below a cab of the excavator, a mounting port is arranged on the outer plate of the rotary platform of the excavator, and the protective shell is fixed on the inner side of the mounting port. And a power supply main switch and an emergency stop switch are arranged in the protective shell, and the power supply main switch and the emergency stop switch are arranged opposite to the mounting port. Under the condition that a worker does not need to enter a cab, operation such as electrifying and sudden stop of excavator equipment can be achieved, and the worker can control the equipment conveniently.

Description

Technical Field

[0001] The utility model belongs to the technical field of excavators, and in particular relates to an electrical switch for excavators. Background Art

[0002] The cab of a mining excavator is the control center of the entire equipment. It is equipped with various electrical devices for controlling the equipment, including the main power switch and the emergency stop switch. However, the cab of a mining excavator is located on the upper platform, which is relatively high. People need to climb onto the upper platform to switch the main power switch behind the cab and the emergency stop switch under the driver's seat. There are the following problems:

[0003] 1. The vehicle needs to be powered on and off by climbing onto the upper platform and entering the cab, which is inconvenient to operate and affects the use of the staff;

[0004] 2. In an emergency, personnel can only stop the vehicle through the emergency stop switch in the cab, which poses a safety risk. Utility Model Content

[0005] In view of the defects or shortcomings in the prior art, the utility model provides an electrical switch for an excavator, which can realize operations such as powering on and emergency stopping the excavator equipment without entering the cab, thereby facilitating the staff to control the equipment.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An embodiment of the utility model provides an electrical switch for an excavator, comprising a protective shell, which is fixed on the outer plate of the excavator's rotating platform and is located below the excavator's cab. An installation opening is provided on the outer plate of the excavator's rotating platform, and the protective shell is fixed on the inner side of the installation opening. A main power switch and an emergency stop switch are arranged inside the protective shell, and the main power switch and the emergency stop switch are arranged opposite the installation opening.

[0008] Furthermore, the protective shell is a rectangular structure formed by bending a steel plate, one side of which is open, and the open side of the protective shell is arranged opposite to the installation port.

[0009] Furthermore, the size of the opening side of the protective shell is larger than the size of the installation opening.

[0010] Furthermore, a first mounting hole and a second mounting hole are formed on the back plate of the protective shell, and the second mounting hole is arranged on one side of the first mounting tube hole.

[0011] Furthermore, the first mounting hole is used to install a main power switch, and the second mounting hole is used to install an emergency stop switch.

[0012] Furthermore, a protective door is provided at the installation opening, and one side of the protective door is rotatably connected to the installation opening via a hinge.

[0013] Furthermore, the protective door is an L-shaped structure, including a cover plate and a partition plate, one end of the hinge is connected to the inner side of an end of the cover plate away from the partition plate, and the other end of the hinge is fixed to the inner side of one end of the installation opening.

[0014] Furthermore, the width of the cover plate is equal to the width of the installation opening, and the length of the cover plate is less than the length of the installation opening.

[0015] Furthermore, there is even a limit plate on the inner side of the top of the installation opening, and a limit washer is provided on the side of the limit plate facing the installation opening.

[0016] Furthermore, a door lock is provided on the protective door, and a second groove is formed at one end of the bottom plate of the protective shell close to the outer plate of the excavator slewing platform, and the second groove is located directly below the door lock.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The utility model provides a protective shell on the outer plate of the excavator's slewing platform, and provides the main power switch and the emergency stop switch in the protective shell. The staff only needs to raise their hands to touch the main power switch and the emergency stop switch, and the staff does not need to enter the cab, which is convenient for the staff to control the equipment.

[0019] 2. The utility model realizes spatial isolation of the main power switch and the emergency stop switch by setting the protective door into an L-shaped structure, ensuring that the emergency stop switch is always external and the emergency stop operation is unobstructed. In addition, by arranging a door lock on the protective door and locking the protective door with the door lock, it can effectively prevent non-staff from maliciously switching the power on and off. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of an electrical switch in an embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of the protective shell structure in the embodiment of the utility model;

[0022] Figure 3 This is a diagram of the closed state of the protective door in the embodiment of the utility model;

[0023] Figure 4 This is a diagram of the installation position of the electrical switch in the embodiment of the utility model;

[0024] Among them, 1. protective shell; 2. outer plate of excavator slewing platform; 3. installation port; 4. first installation hole; 5. second installation hole; 6. main power switch; 7. emergency stop switch; 8. protective door; 9. hinge; 10. cover plate; 11. partition; 12. first groove; 13. limit plate; 14. limit washer; 15. door lock; 16. second groove. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0026] A typical implementation of the present utility model is as follows Figure 1 and Figure 4 As shown, an electrical switch for an excavator includes a protective shell 1, which is fixed on an outer plate 2 of a rotary platform of the excavator and is located below a cab of the excavator. An installation opening 3 is provided on the outer plate 2 of the rotary platform of the excavator, and the protective shell 1 is fixed inside the installation opening 3.

[0027] The protective shell 1 is a rectangular structure formed by bending a steel plate, with an opening on one side. The open side of the protective shell 1 is arranged opposite to the mounting port 3, so that the mounting port 3 is connected to the inside of the protective shell 1. The size of the open side of the protective shell 1 is larger than the size of the mounting port 3, so that the protective shell 1 can be welded and fixed on the inside of the mounting port 3.

[0028] like Figure 2 As shown, a first mounting hole 4 and a second mounting hole 5 are provided on the back plate of the protective shell 1. The first mounting hole 4 is used to install the main power switch 6. The shape of the first mounting hole 4 is set according to the main power switch 6. Nuts are symmetrically arranged on the first mounting hole 4 for fixing the main power switch 6. The second mounting hole 5 is arranged on one side of the first mounting hole 4 for installing the emergency stop switch 7. The emergency stop switch 7 is fixed by internal and external threads and is fixed on the protective shell 1 through the second mounting hole 5. The main power switch 6 and the emergency stop switch 7 are arranged opposite to the mounting port 3.

[0029] The main power switch 6 and the emergency stop switch 7 are both common switch types on the market. The main power switch 6 is connected to the main power switch line to control the power on and off of the entire excavator. The emergency stop switch 7 is connected to the emergency stop line to shut down the machine in time in an emergency.

[0030] like Figure 3As shown, a protective door 8 is provided at the installation opening 3, and the protective door 8 can cover the protective shell 1, and one side of the protective door 8 is rotatably connected to the installation opening 3 through a hinge 9. Specifically, the protective door 8 is an L-shaped structure, including a cover plate 10 and a partition plate 11, one end of the hinge 9 is connected to the inner side of the end of the cover plate 10 away from the partition plate 11, and the other end of the hinge 9 is fixed to the inner side of one end of the installation opening 3. In order to avoid interference between the hinge 9 and the protective shell 1 also provided on the inner side of the installation opening 3, a first groove 12 is provided at one end of the side plate of the protective shell 1 close to the hinge 9, which is used to install the hinge 9 to avoid interference.

[0031] The width of the cover plate 10 is equal to the width of the installation opening 3, and the length of the cover plate 10 is less than the length of the installation opening 3. When the protective door 8 and the protective shell 1 cover each other, the partition 11 is located between the main power switch 6 and the emergency stop switch 7, thereby realizing the spatial isolation of the main power switch 6 and the emergency stop switch 7, ensuring that the emergency stop switch 7 is always external, and ensuring that the emergency stop operation is unobstructed.

[0032] There is even a limit plate 13 on the inner side of the top of the installation opening 3, and a limit washer 14 is provided on the side of the limit plate 13 facing the installation opening 3 to ensure that when the protection door 8 is closed, the outer surface of the protection door 8 is flush with the outer surface of the excavator platform.

[0033] A door lock 15 is provided on the protective door 8, and a second groove 16 is opened at one end of the bottom plate of the protective shell 1 close to the outer plate 2 of the excavator slewing platform. The second groove 16 is located directly below the door lock 15. By rotating the door lock 15, the lock tongue of the door lock 15 can enter the second groove 16, thereby closing the protective door 8 to prevent non-staff from maliciously switching on and off the power supply.

[0034] The utility model provides a protective shell on the outer plate of the excavator's slewing platform, and provides a main power switch and an emergency stop switch inside the protective shell. Workers only need to raise their hands to touch the main power switch and the emergency stop switch, and do not need to enter the cab, which makes it convenient for workers to control the equipment.

[0035] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An electrical switch for an excavator, characterized in that: It includes a protective shell, which is fixed on the outer plate of the excavator's rotating platform and is located below the excavator's cab. An installation opening is opened on the outer plate of the excavator's rotating platform. The protective shell is fixed on the inner side of the installation opening. A main power switch and an emergency stop switch are arranged inside the protective shell. The main power switch and the emergency stop switch are arranged opposite to the installation opening.

2. An electrical switch for an excavator as claimed in claim 1, characterized in that: The protective shell is a rectangular structure formed by bending a steel plate, one side of which is open, and the open side of the protective shell is arranged opposite to the installation port.

3. An electrical switch for an excavator as claimed in claim 2, characterized in that: The size of the opening side of the protective shell is larger than the size of the installation opening.

4. An electrical switch for excavators as claimed in claim 1, characterized in that: The back plate of the protective shell is provided with a first mounting hole and a second mounting hole, and the second mounting hole is arranged on one side of the first mounting tube hole.

5. An electrical switch for an excavator as claimed in claim 4, characterized in that: The first mounting hole is used to install the main power switch, and the second mounting hole is used to install the emergency stop switch.

6. An electrical switch for an excavator as claimed in claim 1, characterized in that: A protective door is arranged at the installation opening, and one side of the protective door is rotatably connected to the installation opening through a hinge.

7. An electrical switch for an excavator as claimed in claim 6, characterized in that: The protective door is an L-shaped structure, including a cover plate and a partition plate, one end of the hinge is connected to the inner side of an end of the cover plate away from the partition plate, and the other end of the hinge is fixed to the inner side of one end of the installation opening.

8. An electrical switch for an excavator as claimed in claim 7, characterized in that: The width of the cover plate is equal to the width of the installation opening, and the length of the cover plate is less than the length of the installation opening.

9. An electrical switch for excavators as claimed in claim 1, characterized in that: The inner side of the top of the installation opening is even provided with a limiting plate, and a limiting gasket is provided on the side of the limiting plate facing the installation opening.

10. An electrical switch for excavators as claimed in claim 6, characterized in that: The protective door is provided with a door lock, and a second groove is formed at one end of the bottom plate of the protective shell close to the outer plate of the excavator rotary platform, and the second groove is located directly below the door lock.

Images