A charging device for non-coal mine trackless vehicle

By introducing a pneumatic control and automatic sealing system into the charging device of trackless vehicles in non-coal mines, the problem of moisture intrusion into the charging plug in humid environments is solved, ensuring the electrical performance and safety of the plug and extending its service life.

CN224408994UActive Publication Date: 2026-06-26山金重工有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
山金重工有限公司
Filing Date
2025-07-08
Publication Date
2026-06-26

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Abstract

The utility model relates to charging device technical field especially is a kind of charging device of non-coal mine trackless vehicle, including door leaf, door leaf left end rotationally connected with charging control box subassembly, charging control box subassembly front end is fixedly connected with charging plug subassembly, charging control box subassembly inboard is installed with auxiliary assembly, charging control box subassembly includes control box ontology, control box ontology front end is fixedly connected with built-in cylinder shell, built-in cylinder shell inboard is equipped with the communication air hole, communication air hole inboard is fixedly connected with solenoid valve, built-in cylinder shell bottom end is fixedly connected with suction integrated air pump, built-in cylinder shell inboard is fixedly connected with air bag sealing ring, auxiliary assembly includes round plate, round plate outboard is fixedly connected with rubber sealing ring, in the utility model, device is accurately positioned and sealed to charging plug after charging, prevent moisture impurity invasion, reduce the short circuit, corrosion and other risks caused by moisture, ensure the long-term stable operation of charging equipment.
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Description

Technical Field

[0001] This utility model relates to the field of charging device technology, specifically a charging device for trackless vehicles in non-coal mines. Background Technology

[0002] Charging devices for trackless vehicles in non-coal mines are specially designed to provide power supplementation for trackless vehicles used in non-coal mines. They typically include charging stations or charging piles that can be matched with the vehicle's battery system and charge the vehicle's battery through connecting cables, ensuring that the vehicle can continue to operate. Such devices are of great significance for improving the efficiency and environmental friendliness of mining operations because they can reduce dependence on fossil fuels, reduce emissions, and improve energy efficiency.

[0003] Trackless vehicles in non-coal mines refer to electric or diesel-powered transport vehicles used in non-coal mines that do not rely on fixed tracks. These vehicles typically have high mobility and flexibility, enabling them to move freely on unpaved roads within the mine to transport ore, waste, or perform other operations, thereby improving mining efficiency and reducing operating costs.

[0004] Charging devices for trackless vehicles in non-coal mines are typically used in mining environments, which are characterized by high humidity. Although existing technologies can seal the charging device's enclosure with sealing strips, the charging plug is usually exposed when not in use. The design of the charging plug typically needs to comply with common electrical standards to ensure compatibility with different devices. This universal design makes it difficult to achieve a complete seal on the plug while maintaining its usability. If the charging plug cannot be sealed after charging is complete, moisture can easily intrude, affecting its electrical performance and lifespan, and potentially causing short circuits, corrosion, and other problems. This, in turn, affects the safety and reliability of the charging device. Therefore, a charging device for trackless vehicles in non-coal mines is proposed to address these issues. Utility Model Content

[0005] The purpose of this utility model is to provide a charging device for trackless vehicles in non-coal mines, in order to solve the problem that when the charging device is idle in the mining environment, the charging plug is usually exposed. If the charging plug cannot be sealed after charging is completed, moisture can easily enter, which will affect the electrical performance and service life of the charging plug, and may even cause short circuits, corrosion and other problems, thereby affecting the safety and reliability of the charging device.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A charging device for a trackless vehicle in a non-coal mine includes a door panel. A charging control box assembly is rotatably connected to the left end of the door panel. A charging plug assembly is fixedly connected to the front end of the charging control box assembly. An auxiliary component is installed inside the charging control box assembly. The charging control box assembly includes a control box body. An inner cylindrical shell is fixedly connected to the front end of the control box body. A connecting air port is opened inside the inner side of the inner cylindrical shell. A solenoid valve is fixedly connected to the inner side of the connecting air port. A suction-suction integrated air pump is fixedly connected to the bottom end of the inner cylindrical shell. An airbag sealing ring is fixedly connected to the inner side of the inner cylindrical shell. The auxiliary component includes a circular plate. A rubber sealing ring is fixedly connected to the outer side of the circular plate. A spring and a guide post are fixedly connected to the rear end of the circular plate. A cross plate is fixedly connected to the rear end of the guide post. The guide post is slidably connected to the inner side of the inner cylindrical shell.

[0008] As a further optimization of this utility model, a first pressure sensor is fixedly connected to the inner side of the built-in cylindrical shell near the rear end, a controller is fixedly connected inside the control box body, a second pressure sensor is fixedly connected to the front end of the horizontal plate, and the first pressure sensor, the second pressure sensor, and the controller of the support frame are electrically connected.

[0009] As a further optimization of this utility model, the left side of the door panel is sealed to the right side of the control box body through a sealing gasket, a support frame is fixedly connected to the bottom of the control box body, a fixing opening is provided inside the control box body, and a rubber sheet is fixedly connected to the inside of the fixing opening.

[0010] As a further optimization of this utility model, the charging plug assembly includes a connecting wire, a handle is fixedly connected to the upper end of the connecting wire, a plug is fixedly connected to the rear end of the handle, a rubber ring is fixedly connected to the outer side of the handle, and the rear end of the connecting wire is fixedly connected to the front end of the control box body.

[0011] As a further optimization of this utility model, the handle and plug are inserted into the inner side of the built-in shell, the inner side of the airbag sealing ring is in contact with the outer side of the rubber ring, and the rubber ring is located at the rear end of the airbag sealing ring.

[0012] As a further optimization of this utility model, the airbag sealing ring has a through hole on its inner side near the air inlet, the inner side of the airbag sealing ring is a hollow structure, and the air inlet is connected to the inner side of the airbag sealing ring through the through hole.

[0013] As a further optimization of this utility model, the outer side of the rubber sealing ring is fitted with the inner side of the inner shell, the rear end of the spring is fixedly connected to the inner side of the inner shell near the rear end, and the horizontal plate is located at the rear end of the inner shell.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this invention, through the setting of a charging control box assembly, a charging plug assembly, and auxiliary components, the device can accurately position and seal the charging plug after charging is completed, effectively preventing moisture and impurities from entering the charging plug, thereby protecting the electrical performance and service life of the charging plug. The device uses elastic elements and pneumatic control to achieve automatic sealing and release of the plug, which is simple to operate and highly reliable. It significantly improves the safety and stability of the charging device in a humid mining environment, reduces the risk of short circuits and corrosion caused by moisture, and ensures the long-term stable operation of the charging equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the charging control box assembly structure of this utility model;

[0018] Figure 3 This is a cross-sectional structural diagram of the control box body of this utility model;

[0019] Figure 4 This is a schematic diagram of the charging plug assembly structure of this utility model;

[0020] Figure 5 This utility model Figure 4 A schematic diagram of the structure at point A;

[0021] Figure 6 This is a schematic diagram of the auxiliary component structure of this utility model;

[0022] Figure 7 This is a cross-sectional structural diagram of the circular plate of this utility model.

[0023] In the diagram: 1. Support frame; 2. Door panel;

[0024] 3. Charging control box assembly; 31. Control box body; 32. Fixing port; 33. Rubber sheet; 34. Internal cylinder shell; 35. Connecting air port; 36. Solenoid valve; 37. Suction integrated air pump; 38. Airbag sealing ring; 39. First pressure sensor;

[0025] 4. Charging plug assembly; 41. Connecting cable; 42. Plug; 43. Plug; 44. Rubber ring;

[0026] 5. Auxiliary components; 51. Circular plate; 52. Rubber sealing ring; 53. Spring; 54. Guide post; 55. Horizontal plate; 56. Second pressure sensor. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0029] Please see Figure 1-7 This utility model provides a technical solution:

[0030] A charging device for a trackless vehicle in a non-coal mine includes a door panel 2. A charging control box assembly 3 is rotatably connected to the left end of the door panel 2. A charging plug assembly 4 is fixedly connected to the front end of the charging control box assembly 3. An auxiliary assembly 5 is installed inside the charging control box assembly 3. The charging control box assembly 3 includes a control box body 31. An inner cylindrical shell 34 is fixedly connected to the front end of the control box body 31. A connecting air port 35 is opened inside the inner side of the inner cylindrical shell 34. A solenoid valve 36 is fixedly connected to the inner side of the connecting air port 35. A suction-integrated air pump 37 is fixedly connected to the bottom end of the inner cylindrical shell 34. An airbag sealing ring 38 is fixedly connected to the inner side of the inner cylindrical shell 34. The auxiliary assembly 5 includes a circular plate 51. A rubber sealing ring 52 is fixedly connected to the outer side of the circular plate 51. A spring 53 and a guide post 54 are fixedly connected to the rear end of the circular plate 51. A cross plate 55 is fixedly connected to the rear end of the guide post 54. The guide post 54 is slidably connected to the inner side of the inner cylindrical shell 34.

[0031] As a further implementation of this solution, a first pressure sensor 39 is fixedly connected to the inner side of the inner cylindrical shell 34 near the rear end, a controller is fixed inside the control box body 31, and a second pressure sensor 56 is fixedly connected to the front end of the horizontal plate 55. The first pressure sensor 39, the second pressure sensor 56 and the controller of the support frame 1 are electrically connected. Through the above settings, the device can realize automated sealing and positioning control, reduce the complexity of manual operation, and enhance the reliability and safety of the charging device.

[0032] As a further implementation of this solution, the left side of the door panel 2 is sealed to the right side of the control box body 31 by a sealing gasket. A support frame 1 is fixedly connected to the bottom of the control box body 31. A fixing port 32 is opened on the inside of the control box body 31, and a rubber sheet 33 is fixedly connected to the inside of the fixing port 32. Through the above settings, the sealing gasket effectively prevents moisture and impurities from entering the interior from the connection of the device. The support frame 1 can increase the distance between the charging control box assembly 3 and the ground. The fixing port 32 and the rubber sheet 33 can alleviate the effect of thermal expansion inside the control box body 31.

[0033] As a further implementation of this solution, the charging plug assembly 4 includes a connecting wire 41, with a plug 42 fixedly connected to the upper end of the connecting wire 41, a plug 43 fixedly connected to the rear end of the plug 42, and a rubber ring 44 fixedly connected to the outer side of the plug 42. The rear end of the connecting wire 41 is fixedly connected to the front end of the control box body 31. The plug 42 and the plug 43 are inserted into the inner side of the inner cylindrical shell 34. The inner side of the airbag sealing ring 38 is in contact with the outer side of the rubber ring 44. The rubber ring 44 is located at the rear end of the airbag sealing ring 38. Through the above settings, the plug is prevented from loosening or falling off during use, improving the stability and reliability of the device and ensuring the stable fixation of the charging plug inside the device. This design not only improves the sealing performance of the plug but also prevents moisture and impurities from entering the plug, extending the service life of the charging plug.

[0034] As a further implementation of this solution, the airbag sealing ring 38 has a through hole on the inner side near the connecting air port 35. The inner side of the airbag sealing ring 38 is a hollow structure. The connecting air port 35 is connected to the inner side of the airbag sealing ring 38 through the through hole. Through the above setting, a channel is provided for pneumatic control, enabling the device to achieve automated sealing and release functions through the pneumatic system.

[0035] As a further implementation of this solution, the outer side of the rubber sealing ring 52 is fitted with the inner side of the inner cylindrical shell 34, the rear end of the spring 53 is fixedly connected to the inner side of the inner cylindrical shell 34 near the rear end, and the horizontal plate 55 is located at the rear end of the inner cylindrical shell 34. Through the above settings, this design not only enhances the structural stability of the device, but also ensures the smoothness of the charging plug during insertion and removal, improves the ease of use and reliability of the device, and facilitates the start-up of the solenoid valve 36 and the suction-integrated air pump 37.

[0036] Workflow: After charging is complete, insert the plug 42 into the inner shell 34. Before this, the circular plate 51 is inside the airbag sealing ring 38, and the outer side of the rubber sealing ring 52 is in contact with the inner side of the airbag sealing ring 38. When the rear end of the plug 43 contacts the circular plate 51, the circular plate 51 is pushed to move backward. The circular plate 51 drives the guide post 54, the horizontal plate 55, and the second pressure sensor 56 to move backward. The circular plate 51 compresses the spring 53. When the front end of the second pressure sensor 56 moves away from the rear end of the inner shell 34, the control inside the support frame 1 is activated. The controller opens the solenoid valve 36, simultaneously controlling the integrated suction pump 37 to draw air from the connecting air port 35 and the inside of the airbag sealing ring 38. At this time, the airbag sealing ring 38 begins to contract. When the rear end of the circular plate 51 contacts the front end of the first pressure sensor 39, the rubber ring 44 is positioned at the rear end of the airbag sealing ring 38. Then, the controller starts the integrated suction pump 37, which blows air into the connecting air port 35 and the inside of the airbag sealing ring 38. The airbag sealing ring 38 begins to expand, and the inner side of the airbag sealing ring 38 is tightly pressed against the outer side of the insert 42. Meanwhile, the rear end of the airbag sealing ring 38 is tightly attached to the front end of the rubber ring 44. The rubber ring 44 prevents the insert 42 from detaching from the inner shell 34, thus positioning the insert 42. At this time, the solenoid valve 36 is closed, keeping the airbag sealing ring 38 in its original shape and sealing the insert 42. When the insert 42 needs to be removed, the button on the right side of the control door panel 2 controls the solenoid valve 36 and the suction-pump 37, thereby releasing the airbag sealing ring 38 from contact with the insert 42, allowing the insert 42 to be removed. When the head 43 is removed for charging, the spring 53 pushes the circular plate 51 forward, positioning it inside the airbag sealing ring 38. When the front end of the second pressure sensor 56 contacts the rear end of the inner shell 34, the airbag sealing ring 38 expands, sealing the front end of the inner shell 34 and preventing impurities from entering. Based on these principles, the device can position and seal the charging plug after charging, preventing moisture from entering the plug and thus protecting its safety and extending its lifespan.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A charging device for a trackless vehicle in a non-coal mine, comprising a door panel (2), characterized in that: The left end of the door panel (2) is rotatably connected to a charging control box assembly (3), the front end of the charging control box assembly (3) is fixedly connected to a charging plug assembly (4), and an auxiliary assembly (5) is installed inside the charging control box assembly (3). The charging control box assembly (3) includes a control box body (31), an inner cylindrical shell (34) is fixedly connected to the front end of the control box body (31), a connecting air port (35) is opened on the inner side of the inner cylindrical shell (34), a solenoid valve (36) is fixedly connected to the inner side of the connecting air port (35), a suction integrated air pump (37) is fixedly connected to the bottom end of the inner cylindrical shell (34), and an airbag sealing ring (38) is fixedly connected to the inner side of the inner cylindrical shell (34). The auxiliary component (5) includes a circular plate (51), a rubber sealing ring (52) is fixedly connected to the outer side of the circular plate (51), a spring (53) and a guide post (54) are fixedly connected to the rear end of the circular plate (51), and a horizontal plate (55) is fixedly connected to the rear end of the guide post (54). The guide post (54) is slidably connected to the inside of the inner shell (34).

2. The charging device for a trackless vehicle in a non-coal mine according to claim 1, characterized in that: The inner side of the built-in cylindrical shell (34) near the rear end is fixedly connected to a first pressure sensor (39), the control box body (31) is fixedly connected to a controller, and the front end of the horizontal plate (55) is fixedly connected to a second pressure sensor (56). The first pressure sensor (39), the second pressure sensor (56) and the controller of the support frame (1) are electrically connected.

3. The charging device for a trackless vehicle in a non-coal mine according to claim 1, characterized in that: The left side of the door panel (2) is sealed to the right side of the control box body (31) by a sealing gasket. A support frame (1) is fixedly connected to the bottom of the control box body (31). A fixing port (32) is opened on the inner side of the control box body (31). A rubber sheet (33) is fixedly connected to the inner side of the fixing port (32).

4. The charging device for a trackless vehicle in a non-coal mine according to claim 1, characterized in that: The charging plug assembly (4) includes a connecting wire (41), with a plug (42) fixedly connected to the upper end of the connecting wire (41), a plug (43) fixedly connected to the rear end of the plug (42), a rubber ring (44) fixedly connected to the outside of the plug (42), and the rear end of the connecting wire (41) fixedly connected to the front end of the control box body (31).

5. A charging device for a trackless vehicle in a non-coal mine according to claim 4, characterized in that: The plug (42) and plug (43) are inserted into the inner side of the inner shell (34), the inner side of the airbag sealing ring (38) is in contact with the outer side of the rubber ring (44), and the rubber ring (44) is located at the rear end of the airbag sealing ring (38).

6. A charging device for a trackless vehicle in a non-coal mine according to claim 1, characterized in that: The airbag sealing ring (38) has a through hole on the inner side near the air inlet (35). The inner side of the airbag sealing ring (38) is hollow. The air inlet (35) is connected to the inner side of the airbag sealing ring (38) through the through hole.

7. A charging device for a trackless vehicle in a non-coal mine according to claim 1, characterized in that: The outer side of the rubber sealing ring (52) is attached to the inner side of the inner shell (34), the rear end of the spring (53) is fixedly connected to the inner side of the inner shell (34) near the rear end, and the horizontal plate (55) is located at the rear end of the inner shell (34).