Blast regulation and control device

Abstract

The utility model discloses an air blast regulation and control device, which is applied to the field of air blowers and comprises a shell, a rear cover is bolted on the back of the shell, a first pipeline and a second pipeline are respectively arranged on the back of the rear cover and the front of the shell in a penetrating manner, and a two-way screw rod is rotatably connected inside the shell through a bearing. Two threaded plates are in threaded connection with the surface of the two-way screw rod, adjusting plates are in bolted connection with the bottoms of the threaded plates, a fixing frame is arranged at the bottom of the shell, sliding grooves are formed in the two sides of the fixing frame, and threaded rods are welded to the two sides of the shell. According to the device, the bottom adjustable function can be achieved, the situation that the device is in a suspended state after being installed, pipeline loads are increased is avoided, the stability and the flexibility of the device are improved, meanwhile, the air output adjustable function can be achieved, operation is easy and convenient, the shielding state can be observed from the outside, the workload of workers is relieved, and practicability is high.

Description

Technical Field

[0001] This utility model relates to the field of blowers, and in particular to a blower control device. Background Technology

[0002] A blower is an industrial device that uses an eccentrically rotating rotor inside a cylinder to draw in, compress, and expel air by changing the volume between the blades in the rotor slots. The power of a blower is determined during design and manufacturing and cannot be adjusted arbitrarily. The pressure and airflow of a blower are independent; changing the pressure requires overcoming the pressure in the upstream pipeline, which necessitates a more powerful motor. However, the maximum power of the motor is fixed, therefore neither the pressure nor the airflow can be adjusted.

[0003] While existing blowers operate stably, they lack adjustable airflow. The blower's outlet duct is open-ended with no external baffle. To reduce airflow, the only solution is to replace the blower with one of different power, which is time-consuming, labor-intensive, and increases the workload, thus reducing its practicality. To address these issues, we propose a blower control device. Utility Model Content

[0004] The purpose of this invention is to provide a blower control device that solves the problem that existing blower devices do not have adjustable air volume.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a blower control device includes a housing, a rear cover bolted to the back of the housing, a first pipe and a second pipe respectively installed through the back of the rear cover and the front of the housing, a bidirectional screw rotatably connected to the inside of the housing via a bearing, two threaded plates threaded to the surface of the bidirectional screw, an adjusting plate bolted to the bottom of the threaded plates, a fixing frame provided at the bottom of the housing, sliding grooves provided on both sides of the fixing frame, threaded rods welded to both sides of the housing, the other end of the threaded rods extending to the outside of the sliding grooves, and a fixing nut threaded to the surface of the threaded rods.

[0006] The above technical solution has an adjustable bottom function, which avoids the device being suspended after installation, thus increasing the load on the pipeline and improving the stability and flexibility of the device. At the same time, it has an adjustable air volume function, is simple and convenient to operate, and allows the obstruction status to be observed from the outside, reducing the workload of personnel and making it highly practical.

[0007] The present invention is further configured such that: a slide rail is bolted inside the housing, and a slider that is slidably connected to the slide rail is welded to the top of the threaded plate.

[0008] By adopting the above technical solution, the threaded plate can be limited by the setting of slide rail and slider, preventing the threaded plate from flipping over during left and right movement.

[0009] The present invention is further configured such that a throttle is welded to the other end of the bidirectional screw.

[0010] By adopting the above technical solution and by setting up the throttle, it is easy for personnel to rotate the bidirectional screw.

[0011] The present invention is further configured such that: an indicator rod is welded to the front of the adjustment plate, and two clearance grooves are provided on the front of the rear cover.

[0012] By adopting the above technical solution, the setting of the indicator rod and the clearance groove makes it easy for personnel to observe the movement distance of the adjustment plate inside the device.

[0013] The present invention is further configured such that a spring washer is slidably fitted onto the surface of the threaded rod.

[0014] By adopting the above technical solution and setting the spring washer, it is possible to prevent the fixing nut from loosening during and after installation.

[0015] The present invention is further configured such that a wear-resistant pad is adhered to the bottom of the fixing frame.

[0016] By adopting the above technical solution and setting wear-resistant pads, the wear resistance of the bottom of the fixing frame can be improved.

[0017] The present invention is further configured such that the fixing frame, threaded rod and fixing nut are all made of stainless steel.

[0018] Using the above technical solution, the fixing bracket, threaded rod, and fixing nut have the characteristics of high strength, low density, and excellent corrosion resistance.

[0019] In summary, this utility model has the following beneficial effects:

[0020] 1. This utility model first fits the first pipe onto the blower's outlet pipe and fixes it. After the first pipe is fixed, the fixing nut is loosened with a tool. After the fixing nut is loosened, the fixing frame is released. Then, the fixing frame is pulled down by hand. After the fixing frame is pulled down to be in contact with the ground, the fixing nut is tightened again. It has a bottom adjustable function, which avoids the device being suspended after installation, thus avoiding increasing the pipe load and improving the stability and flexibility of the device.

[0021] 2. This utility model allows the air blown out after installation to pass through the housing and exit through the second pipe. When it is necessary to reduce the air volume, the handle is held by hand to drive the bidirectional screw to rotate. When the bidirectional screw rotates, it drives two threaded plates to move inward synchronously through the cooperation of the slide rail and the slider. When the threaded plates move, they drive the adjusting plate to block the first pipe. It has the function of adjustable air volume, is simple and convenient to operate, and the blocking status can be observed from the outside, reducing the workload of personnel and making it highly practical. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural view of the present invention;

[0023] Figure 2 This is a front sectional view of the structure of this utility model;

[0024] Figure 3 This is a utility model Figure 2 Enlarged view of the structure at point A in the middle.

[0025] Reference numerals: 1. Housing; 2. Rear cover; 3. First pipe; 4. Second pipe; 5. Bidirectional screw; 6. Threaded plate; 7. Adjusting plate; 8. Fixing bracket; 9. Sliding groove; 10. Threaded rod; 11. Fixing nut; 12. Slide rail; 13. Slider; 14. Throttle; 15. Indicator rod; 16. Clearance groove; 17. Spring washer; 18. Wear-resistant pad. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings.

[0027] Example 1:

[0028] refer to Figure 1 and Figure 2 A blower control device includes a housing 1, a rear cover 2 bolted to the back of the housing 1, a first pipe 3 and a second pipe 4 respectively installed through the back of the rear cover 2 and the front of the housing 1, and a bidirectional screw 5 rotatably connected to the inside of the housing 1 via bearings. Two threaded plates 6 are threadedly connected to the surface of the bidirectional screw 5, and an adjusting plate 7 is bolted to the bottom of the threaded plates 6. After installation, the air blown out by the device passes through the housing 1 and is blown out from the second pipe 4. When it is necessary to reduce the air volume, the handle 14 is held by hand to drive the bidirectional screw 5 to rotate. When the bidirectional screw 5 rotates, it drives the two threaded plates 6 to move inward synchronously through the cooperation of the slide rail 12 and the slider 13. When the threaded plates 6 move, they drive the adjusting plate 7 to block the first pipe 3. It has the function of adjustable air volume, is simple and convenient to operate, and the blocking status can be observed from the outside, reducing the workload of personnel and having high practicality.

[0029] refer to Figure 2The housing 1 is bolted with a slide rail 12, and the top of the threaded plate 6 is welded with a slider 13 that is slidably connected to the slide rail 12. The slide rail 12 and the slider 13 can limit the threaded plate 6 and prevent the threaded plate 6 from flipping over during left and right movement.

[0030] refer to Figure 2 The other end of the bidirectional screw 5 is welded with a throttle 14, which makes it easy for personnel to rotate the bidirectional screw 5.

[0031] refer to Figure 1 and Figure 2 An indicator rod 15 is welded to the front of the adjustment plate 7, and two clearance grooves 16 are opened on the front of the rear cover 2. The indicator rod 15 and clearance grooves 16 make it easy for personnel to observe the movement distance of the adjustment plate 7 inside the device.

[0032] Brief description of the usage process: After the device is installed, the air blown out will pass through the housing 1 and blow out from the second pipe 4. When it is necessary to reduce the air volume, hold the handle 14 by hand to drive the bidirectional screw 5 to rotate. When the bidirectional screw 5 rotates, it will drive the two threaded plates 6 to move inward synchronously through the cooperation of the slide rail 12 and the slider 13. When the threaded plates 6 move, they will drive the adjusting plate 7 to block the first pipe 3.

[0033] Example 2:

[0034] refer to Figure 1 , Figure 2 and Figure 3 A blower control device is provided, wherein a fixed frame 8 is provided at the bottom of the housing 1, and sliding grooves 9 are provided on both sides of the fixed frame 8. Threaded rods 10 are welded to both sides of the housing 1, and the other end of the threaded rods 10 extends to the outside of the sliding grooves 9. A fixing nut 11 is threadedly connected to the surface of the threaded rods 10. The device is operated by first fitting a first pipe 3 onto the blower outlet pipe and fixing it. After the first pipe 3 is fixed, the fixing nut 11 is loosened with a tool. After the fixing nut 11 is loosened, the fixing frame 8 is released. Then, the fixed frame 8 is pulled down by hand. After the fixed frame 8 is pulled down to be in contact with the ground, the fixing nut 11 is tightened again. The device has a bottom adjustable function, which avoids the device being suspended after installation, thus avoiding increased pipe load and improving the stability and flexibility of the device.

[0035] refer to Figure 3 A spring washer 17 is slidably fitted onto the surface of the threaded rod 10. The spring washer 17 prevents the fixing nut 11 from loosening during and after installation.

[0036] refer to Figure 1 and Figure 2The bottom of the fixing frame 8 is glued with a wear-resistant pad 18. The wear-resistant pad 18 can improve the wear resistance of the bottom of the fixing frame 8.

[0037] refer to Figure 1 , Figure 2 and Figure 3 The fixing bracket 8, threaded rod 10 and fixing nut 11 are all made of stainless steel. The fixing bracket 8, threaded rod 10 and fixing nut 11 have the characteristics of high strength, low density and excellent corrosion resistance.

[0038] Brief description of the usage process: First, put the first pipe 3 on the blower's air outlet pipe and fix it. After the first pipe 3 is fixed, use a tool to loosen the fixing nut 11. After the fixing nut 11 is loosened, it will release the fixing of the fixing bracket 8. Then, grab the fixing bracket 8 with your hand and pull it down. When the fixing bracket 8 is pulled down to be in contact with the ground, tighten the fixing nut 11 again.

[0039] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A blower control device, comprising a housing (1), characterized in that: A rear cover (2) is bolted to the back of the housing (1). A first pipe (3) and a second pipe (4) are respectively installed through the back of the rear cover (2) and the front of the housing (1). A bidirectional screw (5) is rotatably connected to the inside of the housing (1) via a bearing. Two threaded plates (6) are threaded to the surface of the bidirectional screw (5). An adjusting plate (7) is bolted to the bottom of the threaded plate (6). A fixing frame (8) is provided at the bottom of the housing (1). Sliding grooves (9) are provided on both sides of the fixing frame (8). Threaded rods (10) are welded to both sides of the housing (1). The other end of the threaded rod (10) extends to the outside of the sliding groove (9). A fixing nut (11) is threaded to the surface of the threaded rod (10).

2. The blower control device according to claim 1, characterized in that, The housing (1) is bolted with a slide rail (12) inside, and the top of the threaded plate (6) is welded with a slider (13) that is slidably connected to the slide rail (12).

3. The blower control device according to claim 1, characterized in that, The other end of the bidirectional screw (5) is welded with a throttle (14).

4. The blower control device according to claim 1, characterized in that, An indicator rod (15) is welded to the front of the adjustment plate (7), and two clearance grooves (16) are opened on the front of the rear cover (2).

5. The blower control device according to claim 1, characterized in that, A spring washer (17) is slidably fitted onto the surface of the threaded rod (10).

6. The blower control device according to claim 1, characterized in that, The bottom of the fixing frame (8) is bonded with a wear-resistant pad (18).

7. The blower control device according to claim 1, characterized in that, The fixing bracket (8), threaded rod (10) and fixing nut (11) are all made of stainless steel.

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