Tunnel fan with efficient air outlet

Abstract

According to the tunnel draught fan efficient in air outlet, air enters a machine box through an air inlet part, sequentially passes through a draught fan part and an air outlet part and is finally exhausted to the outside, the positions of the air inlet part and the air outlet part are adjusted through a hydraulic cylinder, and therefore the angles of the air inlet part and the air outlet part relative to the draught fan part are changed; the orientation of the air inlet part can be kept consistent with the air flowing direction, then the air inlet efficiency is improved, the rotating ball rotates along with rotation of the connecting shaft so as to extrude the detection plate and the transmission shaft to transmit pressure to the sensor, the sensor measures the rotating angle of the rotating ball, and then the rotating angle of the air inlet part and the rotating angle of the air outlet part are measured. According to the air conditioner, the angle of the air inlet part can be adjusted to improve the air flowing efficiency, and the rotating angles of the air inlet part and the air outlet part are detected in real time through the measuring assembly, so that angle adjustment of the air inlet part and the air outlet part is more accurate.

Description

Technical Field

[0001] The present application relates to the technical field of fans, and in particular to a tunnel fan with high air output efficiency. Background Art

[0002] Tunnels are engineering structures buried in the earth, a form of human utilization of underground space. Tunnels can be categorized as transportation tunnels, hydraulic tunnels, municipal tunnels, and mining tunnels. Tunnel structures consist of a main structure and ancillary facilities. The main structure consists of the tunnel body and portals, while ancillary facilities include shelters, firefighting facilities, emergency communications, and drainage systems. Longer tunnels also have specialized ventilation and lighting equipment.

[0003] Tunnel fan is a commonly used equipment in tunnels. Tunnel fan is also called tunnel jet fan, tunnel fan, jet fan, and is widely used in practical use in tunnels such as water conservancy dam projects, highways, railways, and subways.

[0004] After the existing tunnel fans are installed, their wind direction angle is generally fixed, and the angles of the air inlet and outlet of the tunnel fans cannot be changed, resulting in the inability to adjust the air outlet direction of the tunnel fans, making the air outlet efficiency of the tunnel fans low. Utility Model Content

[0005] Based on this, it is necessary to provide a tunnel fan with high air output efficiency to address the problem that the wind direction angle of existing tunnel fans is generally fixed after installation, and the angles of the air inlet and outlet of the tunnel fan cannot be changed, resulting in the inability to adjust the air outlet direction of the tunnel fan, which makes the air outlet efficiency of the tunnel fan low.

[0006] The present application provides a tunnel fan with high air output efficiency, comprising:

[0007] A chassis, comprising an air inlet portion, a fan portion, and an air outlet portion;

[0008] An adjustment assembly, comprising a hydraulic cylinder, a connecting groove, a connecting shaft, a rotating ball, and a sealing sleeve, wherein the hydraulic cylinder is fixedly connected to the fan unit, the connecting groove is provided in the side wall of the fan unit, the rotating ball is rotatably connected to the connecting groove, one end of the connecting shaft is fixedly connected to the rotating ball, the other end of the connecting shaft is fixedly connected to the side wall of the air inlet unit, and the sealing sleeve is sleeved at the connection between the air inlet unit, the air outlet unit, and the fan unit;

[0009] The measuring component includes a sensor, a detection plate and a transmission shaft. The sensor is arranged on the groove wall of the connecting groove. One end of the transmission shaft is fixedly connected to the sensor, and the other end of the transmission shaft is fixedly connected to the detection plate. The detection plate is against the rotating ball.

[0010] The present application relates to a tunnel fan with high air outlet efficiency. Air enters a chassis through an air inlet, and is discharged to the outside through the fan part and the air outlet part in sequence. The positions of the air inlet and the air outlet are adjusted by a hydraulic cylinder, thereby changing the angles of the air inlet and the air outlet relative to the fan part, so that the orientation of the air inlet can be consistent with the direction of air flow, thereby improving the air intake efficiency. The rotating ball rotates along with the rotation of the connecting shaft, thereby squeezing the detection plate, and the transmission shaft transmits the pressure to the sensor. The sensor measures the rotation angle of the rotating ball, and then measures the rotation angle of the air inlet and the air outlet. The present application can adjust the angle of the air inlet to improve the air flow efficiency, and detects the rotation angle of the air inlet and the air outlet in real time through the measuring component, so that the angle adjustment of the air inlet and the air outlet is more precise, thereby improving the air outlet efficiency of the tunnel fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A schematic structural diagram of a tunnel fan with high air output efficiency provided in one embodiment of the present application.

[0012] Figure 2 A schematic structural diagram of a chassis of a tunnel fan with high air output efficiency provided in one embodiment of the present application.

[0013] Figure 3 for Figure 2 Enlarged schematic diagram of part A.

[0014] Figure 4 A front view of a fan portion of a tunnel fan with high air output efficiency provided in one embodiment of the present application.

[0015] Figure 5 A schematic diagram of the connection relationship between a chassis and an enclosing sleeve of a tunnel fan with high air output provided in one embodiment of the present application.

[0016] Reference numerals:

[0017] 100, chassis; 101, air inlet; 102, fan; 103, air outlet; 104, filter;

[0018] 200, adjustment assembly; 201, hydraulic cylinder; 202, connecting groove; 203, connecting shaft;

[0019] 203a, fixed part; 203b, sliding part; 204, rotating ball; 205, closing sleeve;

[0020] 206, first hydraulic cylinder; 207, second hydraulic cylinder; 300, measurement component; 301, sensor;

[0021] 302. Detection plate; 303. Drive shaft. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0023] The present application provides a tunnel fan with high air output efficiency.

[0024] like Figure 1 、 Figure 2 and Figure 3 As shown, in one embodiment of the present application, the tunnel fan with high air output efficiency includes a chassis 100 , an adjustment component 200 and a measurement component 300 .

[0025] The chassis 100 includes an air inlet 101, a fan unit 102, and an air outlet 103. The adjustment assembly 200 includes a hydraulic cylinder 201, a connecting slot 202, a connecting shaft 203, a rotating ball 204, and a sealing sleeve 205. The hydraulic cylinder 201 is fixedly connected to the fan unit 102. The connecting slot 202 is provided on the side wall of the fan unit 102. The rotating ball 204 is rotatably connected to the connecting slot 202. One end of the connecting shaft 203 is fixedly connected to the rotating ball 204, and the other end of the connecting shaft 203 is fixedly connected to the side wall of the air inlet 101. The sealing sleeve 205 is sleeved at the connection between the air inlet 101, the air outlet 103, and the fan unit 102. The measuring assembly 300 includes a sensor 301, a detection plate 302 and a transmission shaft 303. The sensor 301 is arranged on the groove wall of the connecting groove 202. One end of the transmission shaft 303 is fixedly connected to the sensor 301, and the other end of the transmission shaft 303 is fixedly connected to the detection plate 302. The detection plate 302 is against the rotating ball 204.

[0026] In this embodiment, air enters the chassis 100 through the air inlet 101, and is discharged to the outside through the fan unit 102 and the air outlet 103 in sequence. The hydraulic cylinder 201 adjusts the positions of the air inlet 101 and the air outlet 103, thereby changing the angles of the air inlet 101 and the air outlet 103 relative to the fan unit 102, so that the direction of the air inlet 101 can be consistent with the direction of air flow, thereby improving the air intake efficiency. The rotating ball 204 rotates with the rotation of the connecting shaft 203, thereby squeezing The detection plate 302 and the transmission shaft 303 transmit the pressure to the sensor 301. The sensor 301 measures the rotation angle of the rotating ball 204, and then measures the rotation angle of the air inlet 101 and the air outlet 103. The present application can adjust the angle of the air inlet 101 to improve the air flow efficiency, and detect the rotation angle of the air inlet 101 and the air outlet 103 in real time through the measuring component 300, so that the angle adjustment of the air inlet 101 and the air outlet 103 is more precise, thereby improving the air outlet efficiency of the tunnel fan.

[0027] like Figure 1 As shown, in one embodiment of the present application, the outlet of the air inlet part 101 is connected to the inlet of the fan part 102, the outlet of the fan part 102 is connected to the inlet of the air outlet part 103, and the inner wall of the fan part 102 is fixedly connected to a fan, and the direction of the fan is the same as that of the fan part 102.

[0028] Specifically, a connection device is provided on the top of the fan unit 102 to install the chassis 100 in a pre-installed position.

[0029] A fan is fixedly connected to the interior of the fan unit 102 , and the direction of the fan is consistent with the direction of the fan unit 102 .

[0030] In this embodiment, air flows into the chassis 100 through the air inlet 101 , reaches the fan unit 102 along the air inlet 101 , passes through the fan in the fan unit 102 , and is discharged through the air outlet 103 .

[0031] Since adjustment components 200 are provided between the air inlet portion 101 and the fan portion 102, and between the fan portion 102 and the air outlet portion 103, the angles between the fan portion 102 and the air inlet portion 101, and the angles between the fan portion 102 and the air outlet portion 103 can be adjusted, so that the air inlet portion 101 can always face the direction of the airflow, thereby increasing the total amount of airflow entering the chassis 100 per unit time. When the fan intake increases, the air outlet efficiency of the tunnel fan can be improved as long as the fan operates normally.

[0032] like Figure 4 As shown, in one embodiment of the present application, there are multiple connecting grooves 202, and the multiple connecting grooves 202 are arranged circumferentially along the center of the inlet of the air inlet part 101 and the center of the outlet of the air inlet part 101, and each connecting groove 202 is rotatably connected to at least one rotating ball 204.

[0033] Specifically, the structures of the adjustment component 200 between the air inlet part 101 and the fan part 102 and the adjustment component 200 between the fan part 102 and the air outlet part 103 are the same, and they are only symmetrically arranged about the plumb bob center axis of the fan part 102, so as to adjust the angles of the air inlet part 101 and the air outlet part 103 respectively.

[0034] In this embodiment, the angle of the air inlet portion 101 is adjusted by the first hydraulic cylinder 206 . When the first hydraulic cylinder 206 is working, the air inlet portion 101 moves under the push of the driving rod of the first hydraulic cylinder 206 because the fan portion 102 is fixed.

[0035] The angle of the air outlet 103 can also be adjusted by the second hydraulic cylinder 207, and its adjustment principle is the same as that of the first hydraulic cylinder 206. When the air inlet 101 or the air outlet 103 moves, the connecting shaft 203 is driven to move, thereby causing the rotating ball 204 to rotate in the connecting groove 202.

[0036] like Figure 3 As shown, in one embodiment of the present application, the connecting shaft 203 includes a fixed portion 203a and a sliding portion 203b, one end of the fixed portion 203a is fixedly connected to the rotating ball 204, one end of the sliding portion 203b is slidably connected to the other end of the fixed portion 203a, and the other end of the sliding portion 203b is fixedly connected to the side wall of the air inlet portion 101.

[0037] In this embodiment, since the distance between the air inlet portion 101 and the fan portion 102 may change during the movement, the connecting shaft 203 may be damaged if the length of the connecting shaft 203 is not adjusted.

[0038] During the movement of the air inlet part 101, the sliding part 203b of the connecting shaft 203 close to the rotation direction of the air inlet part 101 will shrink toward the fixed part 203a under the pressure of the air inlet part 101, while the sliding part 203b of the connecting shaft 203 away from the rotation direction of the air inlet part 101 will move outward from the fixed part 203a under the pulling force of the air inlet part 101.

[0039] like Figure 3 As shown, in one embodiment of the present application, the detection plate 302 is symmetrically arranged about the central axis of the rotating ball 204, the shape of the detection plate 302 is arc-shaped, and the contact surface between the detection plate 302 and the rotating ball 204 is covered with a rubber layer.

[0040] In this embodiment, after the angle adjustment of the air inlet part 101 is completed, the rotating ball 204 will be driven by the connecting shaft 203 to deviate to an angle in the same direction as the connecting shaft 203, which will cause the rotating ball 204 to squeeze the detection plate 302. The detection plate 302 is subjected to force and transmits the pressure to the sensor 301 through the transmission shaft 303. The sensor 301 measures the rotation angle of the detection plate 302 according to the pressure, thereby determining the rotation angle of the air inlet part 101.

[0041] like Figure 1 As shown, in one embodiment of the present application, the hydraulic cylinder 201 includes a first hydraulic cylinder 206 and a second hydraulic cylinder 207, the first hydraulic cylinder 206 is fixedly connected to the inlet of the fan part 102, the second hydraulic cylinder 207 is fixedly connected to the outlet of the fan part 102, the driving rod of the first hydraulic cylinder 206 is fixedly connected to the air inlet part 101, and the driving rod of the second hydraulic cylinder 207 is fixedly connected to the air outlet part 103.

[0042] In this embodiment, the angles of the air inlet 101 and the air outlet 103 are adjusted by the first hydraulic cylinder 206 and the second hydraulic cylinder 207.

[0043] Since the position of the fan unit 102 is fixed, the angle adjustment is always made relative to the air inlet unit 101. After the first hydraulic cylinder 206 is activated, the positions of the first hydraulic cylinder 206 and the fan unit 102 remain unchanged, and the driving rod of the first hydraulic cylinder 206 can push the air inlet unit 101 to rotate, thereby adjusting the angle of the air inlet unit 101 relative to the fan unit 102.

[0044] The working principle of the second hydraulic cylinder 207 is the same as that of the first hydraulic cylinder 206. After the second hydraulic cylinder 207 works, the positions of the second hydraulic cylinder 207 and the fan part 102 remain unchanged, and the driving rod of the second hydraulic cylinder 207 can push the air outlet part 103 to rotate, thereby adjusting the angle of the air outlet part 103 relative to the fan part 102.

[0045] Since the angles of the air inlet portion 101 and the air outlet portion 103 are adjustable, the angle of the air inlet portion 101 can be kept consistent with the direction of air flow, thereby improving air intake efficiency.

[0046] like Figure 3 As shown, in one embodiment of the present application, the diameter of the opening of the connecting groove 202 is larger than the diameter of the bottom surface of the connecting groove 202 .

[0047] In this embodiment, since the connecting shaft 203 may come into contact with the groove wall of the connecting groove 202 during the rotation of the air inlet part 101, the diameter of the entrance of the connecting groove 202 is enlarged to reduce the contact between the connecting shaft 203 and the groove wall of the connecting groove 202, thereby protecting the connecting shaft 203.

[0048] like Figure 5 As shown, in one embodiment of the present application, the inner diameter of the sealing sleeve 205 is equal to the outer diameter of the air inlet portion 101 .

[0049] Specifically, the sealing sleeve 205 may be made of rubber so that the sealing sleeve 205 has a certain elasticity.

[0050] A sealing sleeve 205 is also provided at the connection between the air outlet portion 103 and the fan portion 102 .

[0051] In this embodiment, after the air inlet part 101 is adjusted, a certain gap will be generated between it and the fan part 102. In order to prevent air from flowing out of the gap, a sealing sleeve 205 is provided at the connection between the air inlet part 101 and the fan part 102 to prevent air loss.

[0052] The reason why the inner diameter of the sealing sleeve 205 is set to be equal to the outer diameter of the air inlet portion 101 is to make the sealing sleeve 205 fit more closely with the air inlet portion 101, thereby reducing air loss.

[0053] like Figure 5 As shown, in one embodiment of the present application, the inlet of the air inlet portion 101 and the outlet of the air outlet portion 103 are both fixedly connected to a filter 104 .

[0054] In this embodiment, a filter 104 is provided to prevent large impurities from entering the interior of the chassis 100 , thereby protecting the devices inside the chassis 100 .

[0055] like Figure 1 As shown, in one embodiment of the present application, the diameter of the air inlet portion 101 is equal to the diameter of the air outlet portion 103 .

[0056] Specifically, the diameter of the fan part 102 is smaller than the diameter of the air inlet part 101 .

[0057] In this embodiment, the air inlet portion 101 and the air outlet portion 103 are symmetrically arranged with respect to the fan portion 102 , and the diameters of the two are the same, so that the air flow can smoothly pass through the entire chassis 100 , thereby improving the air flow efficiency.

[0058] The various technical features of the above-described embodiments can be combined arbitrarily, and the execution order of the method steps is not restricted. In order to make the description concise, not all possible combinations of the various technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be determined by the appended claims.

Claims

1. A tunnel fan with high air output efficiency, characterized in that: The tunnel fan with high air output efficiency includes: A chassis, comprising an air inlet portion, a fan portion, and an air outlet portion; An adjustment assembly, comprising a hydraulic cylinder, a connecting groove, a connecting shaft, a rotating ball, and a sealing sleeve, wherein the hydraulic cylinder is fixedly connected to the fan unit, the connecting groove is provided in the side wall of the fan unit, the rotating ball is rotatably connected to the connecting groove, one end of the connecting shaft is fixedly connected to the rotating ball, the other end of the connecting shaft is fixedly connected to the side wall of the air inlet unit, and the sealing sleeve is sleeved at the connection between the air inlet unit, the air outlet unit, and the fan unit; The measuring component includes a sensor, a detection plate and a transmission shaft. The sensor is arranged on the groove wall of the connecting groove. One end of the transmission shaft is fixedly connected to the sensor, and the other end of the transmission shaft is fixedly connected to the detection plate. The detection plate is against the rotating ball.

2. The tunnel fan with high air output efficiency according to claim 1, characterized in that: The outlet of the air inlet portion is communicated with the inlet of the fan portion, the outlet of the fan portion is communicated with the inlet of the air outlet portion, the inner wall of the fan portion is fixedly connected with a fan, and the direction of the fan is the same as that of the fan portion.

3. The tunnel fan with high air output efficiency according to claim 2, characterized in that: There are multiple connecting grooves, and the multiple connecting grooves are arranged in a circumferential direction along the center of the inlet of the air inlet and the center of the outlet of the air inlet. Each connecting groove is rotatably connected to at least one rotating ball.

4. The tunnel fan with high air output efficiency according to claim 3, characterized in that: The connecting shaft includes a fixed part and a sliding part, one end of the fixed part is fixedly connected to the rotating ball, one end of the sliding part is slidably connected to the other end of the fixed part, and the other end of the sliding part is fixedly connected to the side wall of the air inlet part.

5. The tunnel fan with high air output efficiency according to claim 4, characterized in that: The detection plate is symmetrically arranged about the central axis of the rotating ball. The detection plate is an arc-shaped plate. The contact surface between the detection plate and the rotating ball is covered with a rubber layer.

6. The tunnel fan with high air output efficiency according to claim 5, characterized in that: The hydraulic cylinder includes a first hydraulic cylinder and a second hydraulic cylinder, the first hydraulic cylinder is fixedly connected to the inlet of the fan part, the second hydraulic cylinder is fixedly connected to the outlet of the fan part, the driving rod of the first hydraulic cylinder is fixedly connected to the air inlet part, and the driving rod of the second hydraulic cylinder is fixedly connected to the air outlet part.

7. The tunnel fan with high air output efficiency according to claim 6, characterized in that: The connecting groove is a circular groove, and the diameter of the opening of the connecting groove is larger than the diameter of the bottom surface of the connecting groove.

8. The tunnel fan with high air output efficiency according to claim 7, characterized in that: The inner diameter of the sealing sleeve is equal to the outer diameter of the air inlet portion.

9. The tunnel fan with high air output efficiency according to claim 8, characterized in that: The inlet of the air inlet portion and the outlet of the air outlet portion are both fixedly connected with filter screens.

10. The tunnel fan with high air output efficiency according to claim 9, characterized in that: The diameter of the air inlet portion is equal to the diameter of the air outlet portion.

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