Automatic telescopic device of air duct

Abstract

The utility model discloses an air duct automatic telescopic device, including bottom plate, brake caster, electric roller and air duct body, the lower surface edge of bottom plate is equipped with brake caster, and the both ends of bottom plate upper surface are respectively fixed with locating plate, and the lower end outer wall of one side of locating plate is provided with stabilizing mechanism, and the electric roller is fixed on the bottom plate. A positioning rod is fixedly installed on the outer wall of the upper end of the other side of the positioning plate, the outer wall of the positioning rod is sleeved with a transmission sleeve, a transmission rod is fixedly connected to the lower surface of the transmission sleeve, an electric rolling wheel is fixedly arranged at the lower end of the transmission rod, and a square sleeve and a foundation pillar are fixed to the two ends of the upper surface of the transmission sleeve correspondingly; a square rod is movably mounted on the inner wall of the square sleeve, the upper end of the square rod is fixedly connected with an air duct body, and a locking column is fixedly arranged on the lower surface of the air duct body on the side of the square rod. The automatic telescopic device of the air duct is conveniently separated from the air duct for maintenance, so that the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mine auxiliary devices, and particularly relates to an automatic telescopic device for a ventilation duct. Background Technique

[0002] The ventilation duct is an important part of an underground mine. Its main function is to ventilate the mine, thereby ensuring the safety and comfort of the mine working environment. The automatic telescopic device for the ventilation duct refers to a device that can automatically extend or retract the ventilation duct. Its main function is to retract the ventilation duct to protect the ventilation duct and avoid damage to the ventilation duct due to accidents.

[0003] However, the following problems exist when the existing automatic telescopic device for the ventilation duct is used:

[0004] Since the electronic components on the automatic telescopic device for the ventilation duct need to be maintained after long-term use, the device needs to be conveniently detached from the ventilation duct. However, the existing automatic telescopic device for the ventilation duct is not convenient to be detached from the ventilation duct, resulting in that the automatic telescopic device for the ventilation duct is not easy to be maintained and the practicability of the automatic telescopic device for the ventilation duct is reduced.

[0005] In view of the above problems, there is an urgent need to innovate and design on the basis of the original automatic telescopic device for the ventilation duct. Content of the Utility Model

[0006] The purpose of the utility model is to provide an automatic telescopic device for a ventilation duct, so as to solve the problem that the existing automatic telescopic device for the ventilation duct is not convenient to be detached from the ventilation duct for maintenance, thereby reducing the practicability of the device as mentioned in the above background technique.

[0007] To achieve the above purpose, the utility model provides the following technical scheme: an automatic telescopic device for a ventilation duct, including a bottom plate, brake casters, electric rollers and a ventilation duct body. Brake casters are installed at the edge of the lower surface of the bottom plate. Positioning plates are respectively fixed at both ends of the upper surface of the bottom plate. A stabilizing mechanism is arranged on the outer wall of the lower end of one side of the positioning plate. A positioning rod is fixedly installed on the outer wall of the upper end of the other side of the positioning plate. A transmission sleeve is sleeved on the outer wall of the positioning rod. A transmission rod is fixedly connected to the lower surface of the transmission sleeve. An electric roller is fixedly arranged at the lower end of the transmission rod. Square sleeves and base columns are respectively fixed at both ends of the upper surface of the transmission sleeve. A locking sleeve is sleeved on the outer wall of the base column. A square rod is movably installed in the inner wall of the square sleeve. The upper end of the square rod is fixedly connected to the ventilation duct body. A locking column is fixedly arranged on the lower surface of the ventilation duct body beside the square rod.

[0008] Preferably, the stabilizing mechanism includes a stabilizing plate, an adjusting rod and a thorns plate. The stabilizing plate is fixedly installed on the outer wall of the positioning plate. The adjusting rod is movably connected to the inner wall of the stabilizing plate. The thorns plate is movably installed at the lower end of the adjusting rod.

[0009] Preferably, the stabilizing plate and the adjusting rod are provided with threads, and the adjusting rod is rotatably connected to the thorns plate.

[0010] Preferably, the transmission sleeve and the positioning rod form a sliding structure.

[0011] Preferably, the electric roller is attached to the bottom plate.

[0012] Preferably, the square sleeve and the square rod are slidably connected.

[0013] Preferably, the locking sleeve is threadedly connected to the base column and the locking column respectively, and the locking sleeve is in contact with the air duct body.

[0014] Compared with the prior art, the beneficial effect of the present utility model is that the automatic telescopic device of the air duct is convenient to be detached from the air duct for maintenance, thereby improving the practicability of the device;

[0015] By moving the locking sleeve, the locking sleeve moves along the base column to disengage from the locking column, and then by moving the air duct body, the square rod disengages from the square sleeve, thereby completing the detachment of the device and the air duct body, making the device convenient for maintenance. Therefore, the device is convenient to be detached from the air duct for maintenance, improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic front sectional structure view of the present utility model;

[0017] Figure 2 is a schematic top sectional structure view of the transmission sleeve of the present utility model;

[0018] Figure 3 is a schematic side sectional structure view of the transmission sleeve of the present utility model;

[0019] Figure 4 is the present utility model Figure 1 the enlarged structure view at A in;

[0020] Figure 5 is the present utility model Figure 1 the enlarged structure view at B in.

[0021] In the figure: 1, bottom plate; 2, brake caster; 3, positioning plate; 4, stabilizing mechanism; 401, stabilizing plate; 402, adjusting rod; 403, thorns plate; 5, positioning rod; 6, transmission sleeve; 7, transmission rod; 8, electric roller; 9, square sleeve; 10, base column; 11, locking sleeve; 12, square rod; 13, air duct body; 14, locking column. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Please refer to Figure 1-5, the utility model provides a technical solution: an automatic telescopic device for a hair dryer, including a bottom plate 1, brake casters 2, positioning plates 3, a stabilizing mechanism 4, a stabilizing plate 401, adjusting rods 402, spiked plates 403, positioning rods 5, transmission sleeves 6, transmission rods 7, electric rollers 8, square sleeves 9, base columns 10, locking sleeves 11, square rods 12, a hair dryer body 13 and locking columns 14. Brake casters 2 are installed at the edge of the lower surface of the bottom plate 1, and positioning plates 3 are respectively fixed at both ends of the upper surface of the bottom plate 1. A stabilizing mechanism 4 is arranged on the outer wall of the lower end of one side of the positioning plate 3, and a positioning rod 5 is fixedly installed on the outer wall of the upper end of the other side of the positioning plate 3. A transmission sleeve 6 is sleeved on the outer wall of the positioning rod 5, and a transmission rod 7 is fixedly connected to the lower surface of the transmission sleeve 6. The lower end of the transmission rod 7 is fixedly provided with an electric roller 8. Square sleeves 9 and base columns 10 are respectively fixed at both ends of the upper surface of the transmission sleeve 6. A locking sleeve 11 is sleeved on the outer wall of the base column 10. A square rod 12 is movably installed in the inner wall of the square sleeve 9. The upper end of the square rod 12 is fixedly connected to the hair dryer body 13, and a locking column 14 is fixedly provided on the lower surface of the hair dryer body 13 on the side of the square rod 12.

[0023] The stabilizing mechanism 4 includes a stabilizing plate 401, adjusting rods 402 and spiked plates 403. The stabilizing plate 401 is fixedly installed on the outer wall of the positioning plate 3. The inner wall of the stabilizing plate 401 is movably connected to the adjusting rods 402. The lower end of the adjusting rods 402 is movably installed with the spiked plates 403, which is convenient for improving the firmness of the connection between the device and the ground through the stabilizing mechanism 4, so that the device works stably.

[0024] The stabilizing plate 401 and the adjusting rods 402 are threadedly arranged, and the adjusting rods 402 and the spiked plates 403 are rotatably connected. It is convenient for the user to rotate the adjusting rods 402, so that the adjusting rods 402 move downward relative to the stabilizing plate 401, thereby driving the spiked plates 403 to move downward and insert into the ground, so that the device is stably positioned on the ground.

[0025] The transmission sleeve 6 and the positioning rod 5 form a sliding structure, which is convenient for the transmission sleeve 6 to slide relative to the positioning rod 5, thereby driving the end of the hair dryer body 13 to move, so that the hair dryer body 13 can be telescoped.

[0026] The electric roller 8 is arranged in contact with the bottom plate 1. When the electric roller 8 moves on the bottom plate 1, it is convenient for the transmission rod 7 to drive the transmission sleeve 6 to move, so that the hair dryer body 13 can be automatically telescoped.

[0027] The square sleeve 9 and the square rod 12 are slidably connected. When the user disassembles the hair dryer body 13, it is convenient for the hair dryer body 13 to drive the square rod 12 to slide relative to the square sleeve 9.

[0028] The locking sleeve 11 is threadedly connected to the base column 10 and the locking column 14 respectively, and the locking sleeve 11 is in contact with the air duct body 13, facilitating the user to rotate the locking sleeve 11 so that the locking sleeve 11 moves upward along the base column 10 and is sleeved on the locking column 14. At the same time, the locking sleeve 11 is in contact with the air duct body 13, thereby completing the connection between the air duct body 13 and the device, making the air duct body 13 and the transmission sleeve 6 in a relatively stable state.

[0029] Working principle: When using this air duct automatic telescopic device, first, as shown in Figure 1-2 and Figure 4-5 , the user connects the air duct body 13 to the ventilation system. When the air duct needs to be extended, the user starts the electric roller 8. Then the electric roller 8 moves on the bottom plate 1, and as the electric roller 8 moves, the transmission rod 7 drives the transmission sleeve 6 to slide relative to the positioning rod 5. Next, the transmission sleeve 6 drives the end of the air duct body 13 to move to expand the air duct body 13, thus completing the extension of the air duct. When the air duct body 13 needs to be retracted, the user just starts the electric roller 8 to move in the reverse direction. Therefore, the device is convenient for automatically telescoping the air duct. Then when the device needs to be maintained, as shown in Figure 1-5 , the user rotates the locking sleeve 11. Then the locking sleeve 11 moves along the base column 10 and disengages from the locking column 14. Next, the user moves the end of the air duct body 13 so that the air duct body 13 drives the square rod 12 to disengage from the square sleeve 9, thereby completing the disconnection between the device and the air duct body 13. Subsequently, the user rotates the adjusting rod 402. Then the adjusting rod 402 moves upward relative to the stable plate 401. Next, the adjusting rod 402 drives the thorn plate 403 to move upward so that the thorn plate 403 is away from the ground. Similarly, operate the remaining stable mechanisms 4. Then the user pushes the device to move through the brake caster 2, so that the device can be conveniently moved to the maintenance area for maintenance. Therefore, the device is convenient to be disconnected from the air duct for maintenance, improving the practicality of the device.

Claims

1. An automatic telescopic device for a hair dryer, comprising a base plate (1), a brake caster (2), an electric roller (8) and a hair dryer body (13), characterized in that: A brake caster (2) is installed at the edge of the lower surface of the base plate (1), and positioning plates (3) are fixed at both ends of the upper surface of the base plate (1), and a stabilizing mechanism (4) is provided on the lower end outer wall of one side of the positioning plate (3), and a positioning rod (5) is fixedly installed on the upper end outer wall of the other side of the positioning plate (3), the outer wall of the positioning rod (5) is sleeved with a transmission sleeve (6), and the lower surface of the transmission sleeve (6) is fixedly connected to a transmission rod (7), and the lower end of the transmission rod (7) is fixedly provided with an electric roller (8), and the two ends of the upper surface of the transmission sleeve (6) are respectively fixed with a square sleeve (9) and a base column (10), and the outer wall of the base column (10) is sleeved with a locking sleeve (11), the inner wall of the square sleeve (9) is movably provided with a square rod (12), and the upper end of the square rod (12) is fixedly connected to a wind tube body (13), and a locking column (14) is fixedly provided on the lower surface of the wind tube body (13) on the side of the square rod (12).

2. The automatic extension and retraction device of a hair dryer according to claim 1, characterized in that: The stabilizing mechanism (4) comprises a stabilizing plate (401), an adjusting rod (402) and a thorn plate (403), wherein the stabilizing plate (401) is fixedly mounted on the outer wall of the positioning plate (3), the adjusting rod (402) is movably connected to the inner wall of the stabilizing plate (401), and the thorn plate (403) is movably mounted on the lower end of the adjusting rod (402).

3. The automatic extension and retraction device of a wind tube according to claim 2, characterized in that: The stabilizing plate (401) and the adjusting rod (402) are threadedly arranged, and the adjusting rod (402) and the thorn plate (403) are rotationally connected.

4. The automatic extension and retraction device of a hair dryer according to claim 1, characterized in that: The transmission sleeve (6) and the positioning rod (5) form a sliding structure.

5. The automatic extension and retraction device of a hair dryer according to claim 1, characterized in that: The electric roller (8) and the bottom plate (1) are arranged in close contact with each other.

6. The automatic extension and retraction device of a hair dryer according to claim 1, characterized in that: The square sleeve (9) and the square rod (12) are slidably connected.

7. The automatic extension and retraction device of a hair dryer according to claim 1, characterized in that: The locking sleeve (11) is threadedly connected to the base column (10) and the locking column (14), respectively, and the locking sleeve (11) and the wind tube body (13) are in close contact with each other.

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