Roof rainproof fan

Abstract

The utility model discloses a roof rain-proof fan, which belongs to the technical field of rain-proof fans and comprises a bottom plate, a ventilation pipe is abutted against the top end of the bottom plate, a fixing component matched with the bottom plate is arranged in the ventilation pipe, and an air outlet matched with the bottom end of the ventilation pipe is arranged on the bottom plate. The top end of the ventilation pipe is fixedly connected with a supporting box, a ventilation mechanism is installed in the supporting box, the supporting box and the ventilation pipe form a T shape, air inlets are formed in the two sides of the bottom end of the supporting box, filter screens are installed on the inner walls of the air inlets, and a waterproof assembly is installed at the top end of the supporting box. And the inflow air can be filtered, so that the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rainproof fans, in particular to a rooftop rainproof fan. Background Art

[0002] At present, roof fans are exhaust ventilation equipment used in factories, warehouses, office buildings and other buildings. In order to ensure the circulation of indoor air, the existing fans have a large gas flow rate when ventilating the room. Some dust and impurities may adhere to the inside of the roof fans, which will affect the use of the device over a long period of time. When it needs to be inspected and repaired, the roof fans are usually directly connected to the roof with bolts. When a specific component needs to be repaired, the device is not easy to disassemble. Utility Model Content

[0003] In order to make up for the above shortcomings, the utility model provides a roof rainproof fan, which aims to improve the problem that dust and impurities adhere to the inside of the roof fan, and long-term accumulation will affect the use of the device. When it needs to be inspected and repaired, the roof fan and the roof are usually directly connected to the roof with bolts. When a specific component needs to be repaired, the device is not easy to disassemble.

[0004] The utility model is implemented as follows: a roof rainproof fan comprises a base plate, the top of the base plate is abutted against a ventilation pipe, a fixing component matched with the base plate is arranged in the ventilation pipe, an air outlet matched with the bottom end of the ventilation pipe is arranged on the base plate, the top of the ventilation pipe is fixedly connected to a support box, a ventilation mechanism is installed in the support box, the support box and the ventilation pipe form a T shape, air inlets are arranged on both sides of the bottom end of the support box, a filter is installed on the inner wall of the air inlet, and a waterproof component is installed on the top of the support box.

[0005] In the preferred technical solution of the utility model, the air inlets are symmetrically arranged on both sides of the ventilation pipe, the top end of the ventilation pipe is connected to the bottom end of the support box, and air guide plates are symmetrically fixedly installed on both sides of the inner wall of the support box, and the air guide plates are inclined.

[0006] In the preferred technical solution of the present utility model, the ventilation mechanism includes a motor and a fan, a support plate is fixedly installed between the two sides of the inner wall of the connection point between the support box and the ventilation duct, the motor is fixedly installed on the top of the support plate, the output end of the motor passes through the support plate and is fixedly connected to the fan, and the fan is arranged in the ventilation duct.

[0007] In the preferred technical solution of the utility model, the ventilation pipe is square in shape, a limiting groove matching the ventilation pipe is provided at the top of the base plate, a sealing ring is installed at the bottom end of the ventilation pipe, and the air outlet is provided at the bottom end of the inner wall of the limiting groove.

[0008] In the preferred technical solution of the utility model, the limit frames are symmetrically fixedly installed on both sides of the ventilation pipe, the limit frames are L-shaped, a plurality of limit rods are fixedly installed on the top of the base plate, the limit frames are slidably installed on the limit rods, and the limit frames are provided with round holes matching the limit rods.

[0009] In the preferred technical solution of the utility model, the waterproof component includes a canopy and support columns, the support columns are fixedly mounted at the four corners of the top end of the support box, and the canopy is fixedly mounted at the top end of the support column.

[0010] In the preferred technical scheme of the present invention, the fixing component includes a positioning frame and a two-way threaded rod. The two-way threaded rod and the fixed installation guide rod are respectively rotatably installed between the two sides of the inner wall of the ventilation pipe. The positioning frame is symmetrically threaded on the two-way threaded rod and slidably installed on the guide rod. The positioning frame is L-shaped. A groove is provided at the bottom end of the base plate. When the bottom end of the ventilation pipe is in contact with the bottom end of the limiting groove, the top end of the inner wall of the positioning frame is in contact with the top end of the inner wall of the groove and slides. An adjustment component is connected to one end of the two-way threaded rod, and the threads on the two-way threaded rod are centrally symmetrically arranged.

[0011] In the preferred technical solution of the present utility model, first slide grooves are provided on both sides of the top end of the inner wall of the groove, a first spring is fixedly installed on the top end of the inner wall of the first slide groove, a pressure block is fixedly connected to the bottom end of the first spring, the pressure block is slidably connected to one side of the positioning frame, one side of the bottom end of the pressure block is inclined, one side of the bottom end of the positioning frame is also inclined, the pressure block is slidably connected to the inner wall of the first slide groove, and when the pressure block is not subjected to external force, the elastic force of the first spring pushes one end of the pressure block out of the outside of the first slide groove.

[0012] In the preferred technical scheme of the present utility model, the adjusting assembly includes a sleeve rod and a pull rod, one end of the bidirectional threaded rod is fixedly installed with the sleeve rod, one end of the sleeve rod slides through one side of the ventilation pipe and slides onto the pull rod, a second spring is fixedly connected between one side of the inner wall of the pull rod and one end of the pull rod, a slider is symmetrically fixedly installed on the outside of the pull rod, and a second slide groove matching the slider is provided on the inner wall of the sleeve rod, a turntable is fixedly installed on one end of the pull rod outside the sleeve rod, and an insertion rod is symmetrically fixedly installed on one side of the turntable, and a plurality of slots matching the insertion rod are provided on the outside of the ventilation pipe. When the turntable is not subjected to external force, the second spring pulls the pull rod and the turntable to allow the insertion rod to be inserted into the slot and limited.

[0013] The beneficial effects of the utility model are as follows: the utility model can obtain a roof rainproof fan through the above design. When installing, the base plate is fixedly installed on the roof and the air outlet on the base plate corresponds to the wind tunnel on the roof, the ventilation pipe is inserted into the limiting groove, and the round hole on the limiting frame is sleeved with the limiting rod. At this time, pulling the turntable drives the pull rod to move to stretch the second spring, and at the same time drives the insertion rod to move out of the slot. The rotating turntable drives the sleeve rod to rotate through the cooperation of the pull rod, the slider and the second slide slot. The sleeve rod rotates and drives the two-way threaded rod to rotate. The rotation of the two-way threaded rod drives the two positioning frames to move relative to each other, and the positioning frame moves to squeeze the pressure block to move it to shrink into the second groove. At this time, the turntable is released and the insertion rod is inserted into the slot and fixed through the pulling force of the second spring. When maintenance is needed, it is disassembled in the same way. When working, the motor is started to drive the fan to rotate, and air is taken in through the air inlet and then discharged from the air outlet. This device can be quickly disassembled and maintained, and can filter the incoming air, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 This is a schematic diagram of the structure of a rooftop rainproof fan provided by the embodiment of the utility model;

[0016] Figure 2 A partial structural schematic diagram of a rooftop rainproof fan is provided for an embodiment of the utility model;

[0017] Figure 3 A schematic diagram of the internal structure of a support box is provided for an embodiment of the utility model;

[0018] Figure 4 A structural schematic diagram of a fixing assembly is provided for an embodiment of the utility model;

[0019] Figure 5 A structural schematic diagram of an adjustment component is provided for an embodiment of the utility model.

[0020] In the figure: 110-bottom plate; 120-ventilation duct; 121-limiting frame; 122-limiting rod; 130-support box; 131-air inlet; 132-wind guide plate; 133-motor; 134-fan; 135-support plate; 140-awning; 150-positioning frame; 151-bidirectional threaded rod; 152-guide rod; 153-first spring; 154-pressing block; 160-sleeve rod; 161-pull rod; 162-second spring; 163-slider; 164-turntable; 165-insertion rod. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 3 The utility model provides a technical solution: a rooftop rainproof fan, including a bottom plate 110, a ventilation pipe 120 is abutted at the top of the bottom plate 110, a fixing component matched with the bottom plate 110 is arranged in the ventilation pipe 120, an air outlet matched with the bottom end of the ventilation pipe 120 is arranged on the bottom plate 110, the top of the ventilation pipe 120 is fixedly connected to a support box 130, a ventilation mechanism is installed in the support box 130, and the ventilation mechanism includes a motor 133 and a fan 134, a support plate 135 is fixedly installed between the inner walls of the support box 130 and the ventilation pipe 120 at both sides of the inner wall, and the support plate 135 is fixedly installed between the inner walls of the support box 130 and the ventilation pipe 120. The motor 133 is fixedly installed at the top, the output end of the motor 133 passes through the support plate 135 and is fixedly connected to the fan 134, the fan 134 is arranged in the ventilation pipe 120, the support box 130 and the ventilation pipe 120 form a T shape, the bottom of the support box 130 is provided with air inlets 131 on both sides, the inner wall of the air inlet 131 is installed with a filter net, the top of the support box 130 is installed with a waterproof component, the waterproof component includes a canopy 140 and a support column, the support column is fixedly installed at the four corners of the top of the support box 130, and the canopy 140 is fixedly installed on the top of the support column.

[0023] In some specific embodiments, the air inlet 131 is symmetrically arranged on both sides of the ventilation duct 120, the top end of the ventilation duct 120 is connected to the bottom end of the support box 130, and the air guide plates 132 are symmetrically fixedly installed on both sides of the inner wall of the support box 130, and the air guide plates 132 are inclined. The air guide plates 132 reduce wind resistance and thus increase flow rate.

[0024] In some specific implementation schemes, the ventilation pipe 120 is square in design, a limiting groove matching the ventilation pipe 120 is provided at the top of the base plate 110, a sealing ring is installed at the bottom end of the ventilation pipe 120, and the air outlet is arranged at the bottom end of the inner wall of the limiting groove, and limiting frames 121 are symmetrically fixedly installed on both sides of the ventilation pipe 120, and the limiting frames 121 are L-shaped, and a plurality of limiting rods 122 are fixedly installed on the top of the base plate 110, and the limiting frames 121 are slidably installed on the limiting rods 122, and a circular hole matching the limiting rods 122 is provided on the limiting frames 121, which is convenient for limiting the ventilation pipe 120 and the base plate 110 when they are connected to prevent displacement at the connection.

[0025] See also Figure 4 and Figure 5 The fixing assembly includes a positioning frame 150 and a bidirectional threaded rod 151. The bidirectional threaded rod 151 and a fixed installation guide rod 152 are respectively rotatably installed between the two sides of the inner wall of the ventilation pipe 120. The positioning frame 150 is symmetrically threaded and installed on the bidirectional threaded rod 151 and slidably installed on the guide rod 152. The positioning frame 150 is L-shaped. A groove is provided at the bottom end of the bottom plate 110. When the bottom end of the ventilation pipe 120 is in contact with the bottom end of the limiting groove, the top end of the inner wall of the positioning frame 150 is in contact with the top end of the inner wall of the groove and slides. One end of the bidirectional threaded rod 151 is connected to an adjustment assembly. The threads on the bidirectional threaded rod 151 are centrally symmetrically arranged. The adjustment assembly includes a sleeve rod 160 and a pull rod 161. One end of the bidirectional threaded rod 151 is fixedly installed The sleeve rod 160, one end of which slides through one side of the ventilation pipe 120 and slides onto the pull rod 161, a second spring 162 is fixedly connected between one side of the inner wall of the pull rod 161 and one end of the pull rod 161, a slider 163 is symmetrically fixedly installed on the outer side of the pull rod 161, and a second sliding groove matching the slider 163 is provided on the inner wall of the sleeve rod 160, and a turntable 164 is fixedly installed on one end of the pull rod 161 outside the sleeve rod 160, and an insertion rod 165 is symmetrically fixedly installed on one side of the turntable 164, and a plurality of slots matching the insertion rod 165 are provided on the outer side of the ventilation pipe 120. When the turntable 164 is not subjected to external force, the second spring 162 pulls the pull rod 161 and the turntable 164 to insert the insertion rod 165 into the slot and limit it.

[0026] In some specific embodiments, first slide grooves are provided on both sides of the top of the inner wall of the groove, and a first spring 153 is fixedly installed on the top of the inner wall of the first slide groove, and a pressure block 154 is fixedly connected to the bottom end of the first spring 153, and the pressure block 154 is slidably connected to one side of the positioning frame 150, and one side of the bottom end of the pressure block 154 is inclined, and one side of the bottom end of the positioning frame 150 is also inclined, and the pressure block 154 is slidably connected to the inner wall of the first slide groove. When the pressure block 154 is not subjected to external force, the elastic force of the first spring 153 pushes one end of the pressure block 154 out of the first slide groove, and the elastic force of the first spring 153 can exert a downward pressure on the ventilation pipe 120, thereby improving the sealing of the connection between the ventilation pipe 120 and the base plate 110.

[0027] Working principle: During installation, the bottom plate 110 is fixedly installed on the roof and the air outlet on the bottom plate 110 corresponds to the wind tunnel on the roof. The ventilation pipe 120 is inserted into the limit slot, and the round hole on the limit frame 121 is sleeved with the limit rod 122. At this time, the turntable 164 is pulled to drive the pull rod 161 to move to stretch the second spring 162, and at the same time drive the insertion rod 165 to move out of the slot. The turntable 164 drives the sleeve rod 160 to rotate through the cooperation of the pull rod 161, the slider 163 and the second slide slot. The rotation of the sleeve rod 160 drives the bidirectional threaded rod 151 to rotate, and the rotation of the bidirectional threaded rod 151 drives the two positioning frames 150 to move relative to each other. The positioning frame 150 moves to squeeze the pressure block 154 to make it move and shrink into the second groove. At this time, the turntable 164 is released and the pulling force of the second spring 162 drives the insertion rod 165 to be inserted into the slot and fixed. When maintenance is required, it is disassembled in the same way. When working, the motor 133 is started to drive the fan 134 to rotate, and the air is taken in through the air inlet 131 and then discharged from the air outlet.

[0028] The above description is only the preferred implementation 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. A roof rainproof fan, comprising a bottom plate, characterized in that: The top of the bottom plate is abutted against the ventilation pipe, the ventilation pipe is provided with a fixing component that cooperates with the bottom plate, the bottom plate is provided with an air outlet that cooperates with the bottom end of the ventilation pipe, the top of the ventilation pipe is fixedly connected to a support box, a ventilation mechanism is installed in the support box, the support box and the ventilation pipe form a T shape, air inlets are provided on both sides of the bottom end of the support box, a filter is installed on the inner wall of the air inlet, a waterproof component is installed on the top of the support box, the air inlets are symmetrically arranged on both sides of the ventilation pipe, the top of the ventilation pipe is connected with the bottom end of the support box, and air guide plates are symmetrically fixedly installed on both sides of the inner wall of the support box, the ventilation mechanism includes a motor and a fan, a support plate is fixedly installed between both sides of the inner wall of the support box and the ventilation pipe, the motor is fixedly installed on the top of the support plate, the output end of the motor passes through the support plate and is fixedly connected to the fan, the ventilation pipe is square, and a limiting groove that cooperates with the ventilation pipe is provided on the top of the bottom plate.

2. A rooftop rainproof fan according to claim 1, characterized in that: The limiting frames are symmetrically fixedly installed on both sides of the ventilation pipe, the limiting frames are L-shaped, a plurality of limiting rods are fixedly installed on the top of the bottom plate, and the limiting frames are slidably installed on the limiting rods.

3. A rooftop rainproof fan according to claim 1, characterized in that: The waterproof assembly includes a canopy and support columns. The support columns are fixedly mounted at the four corners of the top end of the support box, and the canopy is fixedly mounted at the top end of the support column.

4. A rooftop rainproof fan according to claim 1, characterized in that: The fixing assembly includes a positioning frame and a two-way threaded rod. The two-way threaded rod and the fixed installation guide rod are respectively rotatably installed between the two sides of the inner wall of the ventilation pipe. The positioning frame is symmetrically threaded on the two-way threaded rod and slidably installed on the guide rod. The positioning frame is L-shaped. A groove is provided at the bottom end of the base plate. When the bottom end of the ventilation pipe is in contact with the bottom end of the limiting groove, the top end of the inner wall of the positioning frame is in contact with the top end of the inner wall of the groove and slides. One end of the two-way threaded rod is connected to an adjustment assembly.

5. A rooftop rainproof fan according to claim 4, characterized in that: First slide grooves are arranged on both sides of the top of the inner wall of the groove, a first spring is fixedly installed on the top of the inner wall of the first slide groove, a pressing block is fixedly connected to the bottom end of the first spring, and the pressing block is slidably connected to one side of the positioning frame.

6. A rooftop rainproof fan according to claim 4, characterized in that: The adjusting assembly includes a sleeve rod and a pull rod, one end of the bidirectional threaded rod is fixedly installed with the sleeve rod, one end of the sleeve rod slides through one side of the ventilation pipe and slides onto the pull rod, a second spring is fixedly connected between one side of the inner wall of the pull rod and one end of the pull rod, a slider is symmetrically fixedly installed on the outer side of the pull rod, a second slide groove matching the slider is provided on the inner wall of the sleeve rod, a turntable is fixedly installed on one end of the pull rod outside the sleeve rod, an insertion rod is symmetrically fixedly installed on one side of the turntable, and a plurality of slots matching the insertion rod are provided on the outer side of the ventilation pipe.

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