Roof fan for workshop ventilation

Abstract

The utility model relates to the technical field of roof fans, in particular to a roof fan for workshop ventilation, which comprises a bottom plate, the upper end of the bottom plate is fixedly connected with a shell, the upper end of the shell is connected with a protective cover through a first connecting piece, and the inside of the protective cover is fixedly connected with a plurality of pressing rods. The motor and the fan blades are located between the first dustproof net plate and the second dustproof net plate, and the first dustproof net plate is installed in the shell through a second connecting piece. The fan blades are located between the first dustproof net plate and the second dustproof net plate, in the using process, dust of the outside and dust of a workshop are blocked by the second dustproof net plate and the first dustproof net plate and are not prone to being attached to the surfaces of the fan blades, at the moment, the load of the fan blades is not prone to being increased, the fan blades can rotate normally, and the service life of the fan is prolonged. In this way, the motor can drive the rotating shaft and the fan blades to work continuously and stably in the follow-up process, and then the good ventilation and heat dissipation effect is continuously kept.

Description

Technical Field

[0001] The utility model relates to the technical field of roof fans, in particular to a roof fan for workshop ventilation. Background Art

[0002] The workshop is the basic unit for organizing production within an enterprise and is also the first-level organization for the enterprise's production administration. It is composed of several work sections or production teams. In some production workshops, in order to ensure good ventilation, fans are generally installed on the roof or larger windows are opened.

[0003] There is a lot of dust in existing processing workshops and outdoors. When using a fan to ventilate the workshop, dust from the outside world and the workshop can easily enter the fan and gather on the fan blades inside the fan. When the dust accumulates more, the load on the fan blades will become heavier, which will cause the fan blade speed to slow down, thereby affecting the ventilation and heat dissipation effect. For this reason, it is necessary to design a roof fan for workshop ventilation. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a roof fan for workshop ventilation.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a roof fan for workshop ventilation, comprising a base plate, the upper end of the base plate is fixedly connected to the shell, the upper end of the shell is connected to the protective cover through a first connecting piece, a plurality of pressure rods are fixedly connected to the inside of the protective cover, the inside of the shell is fixedly connected to a first support ring, a fixing frame and a second support ring in sequence from top to bottom, a second dust-proof screen is placed on the upper end of the first support ring, and the pressure rods press the upper end of the second dust-proof screen, the upper end of the fixing frame is fixedly connected to a motor, the output shaft end of the motor is fixedly connected to a rotating shaft, the circumferential surface of the rotating shaft is fixedly connected to fan blades, the circumferential surface of the rotating shaft is connected to a scraper by bolts, the lower end of the second support plate is provided with a first dust-proof screen, the motor and the fan blades are located between the first dust-proof screen and the second dust-proof screen, the scraper is located at the lower end of the first dust-proof screen and is used to clean the first dust-proof screen, and the first dust-proof screen is installed in the shell through the second connecting piece.

[0006] Furthermore, a circular hole for the rotation shaft to pass through is formed on the upper end surface of the first dustproof screen plate.

[0007] Furthermore, a plurality of mounting holes are provided on the upper end surface of the base plate.

[0008] Furthermore, the first connecting member includes a first mounting block, a second mounting block, a threaded rod and a nut. The inner wall of the protective cover is fixedly connected with multiple first mounting blocks, and the bottom ends of the multiple first mounting blocks are fixedly connected with threaded rods. The circumferential surface of the outer shell is fixedly connected with multiple second mounting blocks. The multiple second mounting blocks are respectively located at the lower ends of the corresponding multiple first mounting blocks. The upper end surfaces of the multiple second mounting blocks are provided with through holes for the threaded rods to pass through. The circumferential surfaces of the multiple threaded rods are threadedly connected with nuts, and the nuts are located at the lower ends of the second mounting blocks.

[0009] Furthermore, the second connecting member includes a threaded fastener, a protrusion and a slot. The internal thread of the outer shell is connected with multiple threaded fasteners. The bottom end of the first dustproof screen is fixedly connected with multiple protrusions. The circumferential surfaces of the multiple protrusions are provided with slots, and the multiple threaded fasteners are respectively inserted into the corresponding multiple slots.

[0010] Furthermore, a plurality of support blocks are fixedly connected to the interior of the bottom plate, the plurality of support blocks are respectively located directly below the plurality of protrusions, and the support blocks are used to support the protrusions.

[0011] The utility model has the following beneficial effects:

[0012] 1. Compared with the prior art, this roof fan for workshop ventilation can protect the fan body composed of a motor, a rotating shaft and fan blades through the mutual cooperation of the second dustproof mesh plate and the first dustproof mesh plate. At this time, the motor and fan blades in the fan body are located between the first dustproof mesh plate and the second dustproof mesh plate. In this way, when in use, dust from the outside world and the workshop are respectively blocked by the second dustproof mesh plate and the first dustproof mesh plate, and are not easily attached to the surface of the fan blades. At this time, the load of the fan blades is not easy to increase, and the fan blades can be made to rotate normally. In this way, the motor can drive the rotating shaft and fan blades to continue to work stably in the future, thereby continuously maintaining good ventilation and heat dissipation effects.

[0013] 2. Compared with the existing technology, this roof fan for workshop ventilation can stably install the second dustproof screen in the outer shell through the cooperation of the pressure rod and the first support ring. When the second dustproof screen needs to be removed, the second dustproof screen can be directly removed after controlling the first connecting piece and removing the protective cover. This method of removing the second dustproof screen is simpler and more convenient.

[0014] 3. Compared with the prior art, this roof fan for workshop ventilation facilitates the installation of the first dust screen through the action of the second connecting piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a roof fan for workshop ventilation proposed by the utility model from a main view;

[0016] Figure 2 This is a structural schematic diagram of a roof fan for workshop ventilation proposed by the utility model, with the main view and partial section behind;

[0017] Figure 3 This utility model proposes a roof fan for workshop ventilation Figure 2 Schematic diagram of the enlarged structure of A;

[0018] Figure 4 This is a schematic diagram of the exploded structure from a first-person perspective of a roof fan for workshop ventilation proposed by the utility model.

[0019] Figure 5 This is a schematic diagram of the exploded structure from a second perspective of a roof fan for workshop ventilation proposed by the utility model.

[0020] Legend:

[0021] 1. Base plate; 2. Protective cover; 3. Pressure rod; 4. First mounting block; 5. Second mounting block; 6. Threaded rod; 7. First support ring; 8. Fixing bracket; 9. Mounting hole; 10. Motor; 11. Second support ring; 12. First dust screen; 13. Scraper; 14. Bolt; 15. Fan blade; 16. Rotating shaft; 17. Housing; 18. Threaded fastener; 19. Nut; 20. Second dust screen; 21. Support block; 22. Slot; 23. Bump. DETAILED DESCRIPTION

[0022] Reference Figure 1-5The utility model provides a roof fan for workshop ventilation, including a bottom plate 1, the upper end of the bottom plate 1 is fixedly connected to a shell 17, the upper end of the shell 17 is connected to a protective cover 2 through a first connecting piece, the interior of the protective cover 2 is fixedly connected to a plurality of pressure rods 3, the interior of the shell 17 is fixedly connected to a first support ring 7, a fixing frame 8 and a second support ring 11 in sequence from top to bottom, a second dustproof screen 20 is placed on the upper end of the first support ring 7, and the pressure rod 3 is pressed on the upper end of the second dustproof screen 20, and the upper end of the fixing frame 8 is fixedly connected There is a motor 10, the output shaft end of the motor 10 is fixedly connected to the rotating shaft 16, the circumferential surface of the rotating shaft 16 is fixedly connected to the fan blade 15, the circumferential surface of the rotating shaft 16 is connected to the scraper 13 through the bolt 14, and the lower end of the second support plate is provided with a first dustproof mesh plate 12. The motor 10 and the fan blade 15 are located between the first dustproof mesh plate 12 and the second dustproof mesh plate 20. The scraper 13 is located at the lower end of the first dustproof mesh plate 12 and is used to clean the first dustproof mesh plate 12. The first dustproof mesh plate 12 is installed in the outer shell 17 through the second connecting member. During operation, the fan body composed of the motor 10, the rotating shaft 16 and the fan blades 15 can be protected by the mutual cooperation of the second dustproof mesh plate 20 and the first dustproof mesh plate 12. At this time, the motor 10 and the fan blades 15 in the fan body are both located between the first dustproof mesh plate 12 and the second dustproof mesh plate 20. In this way, when in use, the dust from the outside world and the workshop are respectively blocked by the second dustproof mesh plate 20 and the first dustproof mesh plate 12, and are not easily attached to the surface of the fan blades 15. At this time, the load of the fan blades 15 is not easy to increase, and the fan blades 15 can be made to rotate normally. In this way, the motor 10 can drive the rotating shaft 16 and the fan blades 15 to continue to work stably in the future, thereby continuously maintaining good ventilation and heat dissipation effects.

[0023] Furthermore, a circular hole is formed on the upper end surface of the first dustproof screen 12 for the shaft 16 to pass through. During operation, the presence of the circular hole allows the shaft 16 to pass through the circular hole smoothly and penetrate the first dustproof screen 12, thereby ensuring that the presence of the first dustproof screen 12 does not hinder the normal rotation of the shaft 16.

[0024] Furthermore, the upper end surface of the base plate 1 is provided with a plurality of mounting holes 9. During operation, the presence of the plurality of mounting holes 9 facilitates the base plate 1 to be fixedly mounted on the roof of the workshop for use.

[0025] Furthermore, the first connecting member includes a first mounting block 4, a second mounting block 5, a threaded rod 6 and a nut 19. The inner wall of the protective cover 2 is fixedly connected with multiple first mounting blocks 4, and the bottom ends of the multiple first mounting blocks 4 are fixedly connected with threaded rods 6. The circumferential surface of the outer shell 17 is fixedly connected with multiple second mounting blocks 5. The multiple second mounting blocks 5 are respectively located at the lower ends of the corresponding multiple first mounting blocks 4. The upper end surfaces of the multiple second mounting blocks 5 are provided with through holes for the threaded rods 6 to pass through. The circumferential surfaces of the multiple threaded rods 6 are threadedly connected with nuts 19, and the nuts 19 are located at the lower ends of the second mounting blocks 5. During operation, when the protective cover 2 is installed on the upper end of the outer shell 17, it is necessary to ensure that multiple first mounting blocks 4 are respectively pressed on the upper ends of the corresponding second mounting blocks 5, and at the same time, the threaded rod 6 passes through the second mounting block 5 through the through hole, and then the nut 19 is installed on the threaded rod 6. With the cooperation of the threaded rod 6, the first mounting block 4 and the second mounting block 5, the protective cover 2 can be stably installed on the outer shell 17. At this time, the protective cover 2 can be used to protect the upper end of the outer shell 17 to prevent rainwater from the outside from entering the outer shell 17.

[0026] Furthermore, the second connecting member includes a threaded fastener 18, a protrusion 23 and a slot 22. The internal threads of the outer shell 17 are connected with multiple threaded fasteners 18. The bottom end of the first dustproof screen plate 12 is fixedly connected with multiple protrusions 23. The circumferential surfaces of the multiple protrusions 23 are provided with slots 22, and the multiple threaded fasteners 18 are respectively inserted into the corresponding multiple slots 22; the interior of the base plate 1 is fixedly connected with multiple support blocks 21, and the multiple support blocks 21 are respectively located at the lower ends of the multiple protrusions 23, and the support blocks 21 are used to support the protrusions 23. During operation, before installing the first dustproof screen plate 12, first remove the bolts 14 and remove the scraper 13, then control the first dustproof screen plate 12 to extend into the outer shell 17, and at the same time, the protrusions 23 should be staggered with the support blocks 21, until the first dustproof screen plate 12 is close to the second support ring 11, the first dustproof screen plate 12 can be rotated so that multiple protrusions 23 are pressed on the corresponding upper ends of the support blocks 21, and then the threaded fasteners 18 are rotated and controlled to rotate and move until the threaded fasteners 18 are inserted into the corresponding slots 22, and the installation of the first dustproof screen plate 12 is completed.

[0027] Working principle:

[0028] When in use, the fan consisting of the first connecting member, the second connecting member, the bottom plate 1, the protective cover 2, the shell 17, the motor 10, the rotating shaft 16, the fixing frame 8, the scraper 13, the first dustproof screen 12 and the second dustproof screen 20 is installed on the roof of the workshop, and then the motor 10 drives the rotating shaft 16 to rotate, and the rotating shaft 16 drives the fan blades 15 and the scraper 13 to rotate. As the fan blades 15 rotate, the workshop can be ventilated and cooled, and the rotation of the scraper 13 can clean the bottom end of the first dustproof screen 12. At the same time, the wind generated by the rotation of the fan blades 15 can blow the dust scraped off by the scraper 13 downward, so that the first dustproof screen The surface of 12 is not easy to adhere to dust, and there is no need to frequently disassemble and clean the first dustproof mesh plate 12. For the fan on the roof of the workshop, the internal fan blades 15 are located between the first dustproof mesh plate 12 and the second dustproof mesh plate 20. In this way, when in use, the dust from the outside world and the workshop are respectively blocked by the second dustproof mesh plate 20 and the first dustproof mesh plate 12, and are not easy to adhere to the surface of the fan blades 15. At this time, the load of the fan blades 15 is not easy to increase, and the fan blades 15 can be rotated normally. In this way, the motor 10 can drive the rotating shaft 16 and the fan blades 15 to continue to work stably in the future, thereby continuously maintaining good ventilation and heat dissipation effects.

[0029] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A roof fan for workshop ventilation, comprising a bottom plate (1), characterized in that: The upper end of the base plate (1) is fixedly connected to a housing (17), the upper end of the housing (17) is connected to a protective cover (2) via a first connecting piece, a plurality of pressure rods (3) are fixedly connected to the interior of the protective cover (2), the interior of the housing (17) is fixedly connected to a first support ring (7), a fixing frame (8) and a second support ring (11) in sequence from top to bottom, a second dustproof screen (20) is placed on the upper end of the first support ring (7), and the pressure rod (3) is pressed on the upper end of the second dustproof screen (20), the upper end of the fixing frame (8) is fixedly connected to a motor (10), and the motor (10) The output shaft end is fixedly connected to a rotating shaft (16), the circumferential surface of the rotating shaft (16) is fixedly connected to a fan blade (15), the circumferential surface of the rotating shaft (16) is connected to a scraper (13) via a bolt (14), a first dustproof screen (12) is provided at the lower end of the second support plate, the motor (10) and the fan blade (15) are located between the first dustproof screen (12) and the second dustproof screen (20), the scraper (13) is located at the lower end of the first dustproof screen (12) and is used to clean the first dustproof screen (12), and the first dustproof screen (12) is installed in the housing (17) via a second connecting piece.

2. A roof fan for workshop ventilation according to claim 1, characterized in that: The upper end surface of the first dustproof screen plate (12) is provided with a circular hole for the rotating shaft (16) to pass through.

3. A roof fan for workshop ventilation according to claim 1, characterized in that: The upper end surface of the base plate (1) is provided with a plurality of mounting holes (9).

4. A roof fan for workshop ventilation according to claim 1, characterized in that: The first connecting member comprises a first mounting block (4), a second mounting block (5), a threaded rod (6) and a nut (19); the inner wall of the protective cover (2) is fixedly connected with a plurality of first mounting blocks (4); the bottom ends of the plurality of first mounting blocks (4) are fixedly connected with a threaded rod (6); the circumferential surface of the shell (17) is fixedly connected with a plurality of second mounting blocks (5); the plurality of second mounting blocks (5) are respectively located at the lower ends of the corresponding plurality of first mounting blocks (4); the upper end surfaces of the plurality of second mounting blocks (5) are provided with through holes for the threaded rod (6) to pass through; the circumferential surfaces of the plurality of threaded rods (6) are threadedly connected with nuts (19), and the nuts (19) are located at the lower ends of the second mounting blocks (5).

5. The roof fan for workshop ventilation according to claim 1, characterized in that: The second connecting member includes a threaded fastener (18), a protrusion (23) and a slot (22); the internal thread of the housing (17) is connected to a plurality of threaded fasteners (18); the bottom end of the first dustproof screen (12) is fixedly connected to a plurality of protrusions (23); the circumferential surfaces of the plurality of protrusions (23) are each provided with a slot (22); and the plurality of threaded fasteners (18) are respectively inserted into the corresponding plurality of slots (22).

6. A roof fan for workshop ventilation according to claim 5, characterized in that: A plurality of support blocks (21) are fixedly connected to the interior of the base plate (1), the plurality of support blocks (21) are respectively located directly below the plurality of protrusions (23), and the support blocks (21) are used to support the protrusions (23).

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