Anti-blocking fan for factory building

Abstract

The utility model discloses an anti-blocking fan for a workshop, which relates to the field of fans for workshops and comprises an air port frame, a protective net arranged in the middle of the air port frame, a mounting frame arranged on one side of the air port frame, an air blowing component arranged in the middle of the mounting frame, a transmission component arranged in the middle of the air blowing component and a gear reducer arranged at the top of the air port frame. The traction parts are arranged at the two ends of the gear reducer; the anti-blocking parts are arranged in the middles of the traction parts; according to the anti-blocking fan for the factory building, the power of the fan can be utilized, the anti-blocking protection net is automatically arranged in a physical mode, and the anti-blocking fan for the factory building is reasonable in structure, firm and durable.

Description

Technical Field

[0001] This utility model mainly relates to the technical field of factory ventilation fans, specifically a factory ventilation fan designed to prevent blockage. Background Technology

[0002] The most basic function of a fan is ventilation. In factories, the production process may generate harmful gases, dust, or odors. If these substances are not removed in time, they will threaten the health of employees and may affect the normal operation of equipment. By operating, the fan can force out the polluted air in the room and introduce fresh air, thereby maintaining air circulation and freshness in the factory. However, because the fan has a relatively strong suction, some large dirt, such as stones, will be attracted and get stuck in the fan's baffle, causing blockage. Over time, this will lead to poor ventilation. Therefore, a blockage-resistant fan for factories is needed.

[0003] According to application number CN202220582688.9, a self-cleaning anti-clogging exhaust fan suitable for factory workshops includes an exhaust duct, a guide shroud, a cleaning brush, a motor, fan blades, a power transmission mechanism, and a locking mechanism. The motor and fan blades are located inside the exhaust duct, with the motor driving the fan blades to rotate and draw outdoor air into the room for ventilation. The guide shroud is connected to the exhaust duct via the locking mechanism and has a filter at the air inlet to filter dust from the intake air. The cleaning brush rotates under the drive of the power transmission mechanism to remove dust adsorbed on the surface of the filter.

[0004] The aforementioned document describes a cleaning brush connected to the fan motor that rotates to clean dust from the filter section, preventing clogging. The guide cover can be quickly disassembled and installed using a locking mechanism. However, this method suffers from the problem of the cleaning brush becoming contaminated and damaged quickly, and it is difficult to handle stuck blockages. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a factory ventilation fan that prevents blockage, so as to solve the technical problems mentioned in the background art.

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

[0007] A clog-resistant factory fan includes an air outlet frame, a protective net disposed in the middle of the air outlet frame, a mounting frame disposed on one side of the air outlet frame, a blower component disposed in the middle of the mounting frame, a transmission component disposed in the middle of the blower component, a gear reducer disposed at the top of the air outlet frame, traction components disposed at both ends of the gear reducer, and an anti-clogging component disposed in the middle of the traction component.

[0008] Preferably, the protective mesh has a regular rectangular aperture.

[0009] Preferably, the blower component includes a drive motor, two sets of fixing brackets sleeved on both sides of the drive motor, a turbine drive located at the actuating end of the drive motor, and a fan located at the output end of the turbine drive on the side away from the drive motor.

[0010] Preferably, the transmission component includes a first transmission shaft located at the top output end of the turbine drive, an anti-detachment tube passing through the top of the air vent frame and sleeved on the outside of the first transmission shaft, a second transmission shaft connected to the side input end of the gear reducer, and a linkage turbine located at one end of the second transmission shaft near the first transmission shaft.

[0011] Preferably, the first drive shaft includes a cross connecting shaft at the top, a cross sleeve rod sleeved outside the cross connecting shaft, a forward spiral groove on the outer ring of the top of the cross sleeve rod, a reverse spiral groove below the forward spiral groove, several springs connecting the top of the first drive shaft and the bottom of the cross sleeve rod, a C-shaped frame at the top of the air vent frame, a telescopic rod below the C-shaped frame and positioned opposite to the top of the cross sleeve rod, and a bearing at the bottom actuating end of the telescopic rod.

[0012] Preferably, the traction component includes two third drive shafts located at the output ends of the gear reducer, a right-angle coupling located at the other end of the third drive shaft, and two threaded rods vertically rotatably located at both ends inside the air vent frame.

[0013] Preferably, the anti-clogging component includes two threaded sleeves connected to the outside of the two threaded rods by a nut, a rotating column rotatably disposed in the middle of the two threaded sleeves, and a large number of protruding pins regularly arranged on the outside of the rotating column.

[0014] In summary, this technical solution has the following main advantages:

[0015] In this embodiment, by using various transmission structures, the rotational force of the drive motor that drives the fan is transmitted to two threaded rods through a speed reduction and transmission change. By using a reasonable structure to change the direction of the rotational force at regular intervals, a traction structure that drives the fan to move up and down is formed without affecting the operation of the fan, thereby driving the main anti-blocking structure to operate.

[0016] By using a protective net with rectangular apertures and a large number of protruding nails on the outside of the rotating column, large pieces of debris stuck in the protective net are pushed out by the protruding nails when the traction structure drives the rotating column to move up and down in a circular motion. This keeps the protective net clear in real time. Using metal protruding nails can greatly extend the service life of the anti-clogging structure and avoid frequent replacements. Attached Figure Description

[0017] Figure 1This is an isometric view of the overall structure of this utility model;

[0018] Figure 2 This is a diagram showing the overall structure of this utility model without the mesh markings.

[0019] Figure 3 This is a side sectional view of the overall structure of this utility model;

[0020] Figure 4 This is an isometric view of the overall structure of this utility model from the rear.

[0021] Figure 5 This is an enlarged view of part of the structure of this utility model;

[0022] Figure 6 This is a cross-sectional schematic diagram of the first drive shaft assembly of this utility model.

[0023] Figure Descriptions: 10. Air vent frame; 11. Protective net; 12. Mounting frame; 13. Blower component; 14. Transmission component; 15. Gear reducer; 16. Traction component; 17. Anti-blocking component; 131. Drive motor; 132. Fixing frame; 133. Turbine drive; 134. Fan; 141. First drive shaft; 142. Anti-detachment tube; 143. Second drive shaft; 144. Linkage turbine; 1411. Cross connecting shaft; 1412. Cross sleeve rod; 1413. Forward spiral worm gear; 1414. Reverse spiral worm gear; 1415. Spring; 1416. C-shaped frame; 1417. Telescopic rod; 1418. Bearing; 161. Third drive shaft; 162. Right angle coupling; 163. Threaded rod; 171. Threaded sleeve; 172. Rotating column; 173. Convex nail. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] Example

[0026] Please refer to the attached document carefully. Figure 1-5As shown, a factory ventilation fan designed to prevent blockage includes an air outlet frame 10, a protective net 11 located in the middle of the air outlet frame 10, a mounting frame 12 located on one side of the air outlet frame 10, a blower component 13 located in the middle of the mounting frame 12, a transmission component 14 located in the middle of the blower component 13, a gear reducer 15 located at the top of the air outlet frame 10, traction components 16 located at both ends of the gear reducer 15, and an anti-blockage component 17 located in the middle of the traction component 16; the blower component 13 includes a drive motor 131, and two sets of fixed... The frame 132 includes a turbine drive 133 located at the actuation end of the drive motor 131 and a fan 134 located at the output end of the turbine drive 133 away from the drive motor 131. The transmission component 14 includes a first transmission shaft 141 located at the top output end of the turbine drive 133, an anti-detachment tube 142 passing through the top of the air vent frame 10 and sleeved on the outside of the first transmission shaft 141, a second transmission shaft 143 connected to the side input end of the gear reducer 15, and a linkage turbine 144 located at the end of the second transmission shaft 143 near the first transmission shaft 141.

[0027] As described above, the turbine drive 133 has two output shafts, one for connecting to the fan 134 and the other for connecting to the first drive shaft 141. When the drive motor 131 starts, it not only drives the fan 134 to blow air, but also drives the second drive shaft 143 to rotate in the anti-detachment tube 142. When the second drive shaft 143 rotates, it drives the linkage turbine 144 through the forward spiral groove 1413 and the reverse spiral groove 1414 to cause the second drive shaft 143 to rotate, thereby inputting the low torque and high speed rotational power provided by the drive motor 131 into the gear reducer 15, and outputting high torque and low speed rotational power at both ends.

[0028] Please refer to the attached document carefully. Figure 4-6 As shown, the first drive shaft 141 includes a cross connecting shaft 1411 at the top, a cross sleeve rod 1412 sleeved outside the cross connecting shaft 1411, a forward spiral groove 1413 on the top outer ring of the cross sleeve rod 1412, a reverse spiral groove 1414 below the forward spiral groove 1413, several springs 1415 connecting the top of the first drive shaft 141 and the bottom of the cross sleeve rod 1412, a C-shaped frame 1416 at the top of the air vent frame 10, a telescopic rod 1417 below the C-shaped frame 1416 and opposite to the top of the cross sleeve rod 1412, and a bearing 1418 at the bottom actuating end of the telescopic rod 1417. The traction component 16 includes two third drive shafts 161 at the output ends of the gear reducer 15, a right-angle coupling 162 at the other end of the third drive shafts 161, and two threaded rods 163 vertically rotatably located at both ends inside the air vent frame 10.

[0029] As described above, the two threaded rods 163 have the same helical direction. When the telescopic rod 1417 is in the retracted state, several springs 1415 raise the cross sleeve rod 1412, causing the counter-rotating worm gear 1414 to mesh with the linkage turbine 144. After passing through the second drive shaft 143, gear reducer 15, two third drive shafts 16, and right-angle coupling 162, the two threaded rods 163 are finally caused to rotate synchronously in the opposite direction. When the telescopic rod 1417 is in the extended state, the bearing 1418 abuts against the top of the cross sleeve rod 1412, causing it to press down. Several springs 1415 retract, and at this time, the forward-rotating worm gear 1413 meshes with the linkage turbine 144, thereby causing the two threaded rods 163 to rotate synchronously in the forward direction. Therefore, in this embodiment, by delaying the response of the telescopic rod 1417 through the PLC control element, the anti-blocking component 17 can be moved up and down in a cyclic traction manner without affecting the normal rotation of the fan 134.

[0030] Please refer to the attached document carefully. Figure 2 As shown, the anti-blocking component 17 includes two threaded sleeves 171 connected to the outside of two threaded rods 163 by a nut, a rotating column 172 rotatably disposed in the middle of the two threaded sleeves 171, and a large number of protruding nails 173 regularly arranged on the outside of the rotating column 172; the protective net 11 has a regular rectangular aperture.

[0031] As mentioned above, the angle difference of each row of protruding nails 173 is precisely set according to the distance of the aperture of the protective net 11. When the protruding nails 173 are horizontal, they can abut into the aperture of the protective net 11. When the threaded sleeve 171 is pulled by the two threaded rods 163 and causes the rotating column 172 to move up and down, the rotating column 172 rotates continuously under the obstruction of the aperture of the protective net 11, and the protruding nails 173 abut into the aperture of the protective net 11 in turn, pushing out the blockage in the aperture.

[0032] The above embodiments are only for illustrating the technical concept of this utility model and should not be construed as limiting the scope of protection of this utility model. Any modifications made to the technical solution based on the technical concept proposed by this utility model shall fall within the scope of protection of this utility model.

Claims

1. A clog-resistant factory ventilation fan, comprising an air outlet frame (10), characterized in that, A protective net (11) is provided in the middle of the air vent frame (10), an installation frame (12) is provided on one side of the air vent frame (10), a blower component (13) is provided in the middle of the installation frame (12), a transmission component (14) is provided in the middle of the blower component (13), a gear reducer (15) is provided at the top of the air vent frame (10), traction components (16) are provided at both ends of the gear reducer (15), and an anti-blocking component (17) is provided in the middle of the traction component (16).

2. The anti-clogging factory fan according to claim 1, characterized in that, The protective mesh (11) has a regular rectangular aperture.

3. The anti-clogging factory fan according to claim 1, characterized in that, The blower component (13) includes a drive motor (131), two sets of fixing brackets (132) sleeved on both sides of the drive motor (131), a turbine drive (133) located at the actuating end of the drive motor (131), and a fan (134) located at the output end of the turbine drive (133) away from the drive motor (131).

4. A factory ventilation fan for preventing blockage according to claim 3, characterized in that, The transmission component (14) includes a first transmission shaft (141) located at the top output end of the turbine drive (133), an anti-detachment tube (142) passing through the top of the air vent frame (10) and sleeved on the outside of the first transmission shaft (141), a second transmission shaft (143) connected to the side input end of the gear reducer (15), and a linkage turbine (144) located at one end of the second transmission shaft (143) near the first transmission shaft (141).

5. A factory ventilation fan for preventing blockage according to claim 4, characterized in that, The first drive shaft (141) includes a cross connecting shaft (1411) at the top, a cross sleeve rod (1412) sleeved outside the cross connecting shaft (1411), a forward spiral groove (1413) on the outer ring of the top of the cross sleeve rod (1412), a reverse spiral groove (1414) below the forward spiral groove (1413), several springs (1415) connecting the top of the first drive shaft (141) and the bottom of the cross sleeve rod (1412), a C-shaped frame (1416) at the top of the air vent frame (10), a telescopic rod (1417) below the C-shaped frame (1416) and opposite to the top of the cross sleeve rod (1412), and a bearing (1418) at the bottom actuating end of the telescopic rod (1417).

6. The anti-clogging factory fan according to claim 1, characterized in that, The traction component (16) includes two third drive shafts (161) located at the output ends of the gear reducer (15), a right-angle coupling (162) located at the other end of the third drive shafts (161), and two threaded rods (163) vertically rotatably located at both ends inside the air vent frame (10).

7. A factory ventilation fan for preventing blockage according to claim 6, characterized in that, The anti-blocking component (17) includes two threaded sleeves (171) connected to the outside of the two threaded rods (163), a rotating column (172) rotatably disposed in the middle of the two threaded sleeves (171), and a large number of protruding nails (173) regularly arranged on the outside of the rotating column (172).

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