An energy-saving ventilator

Abstract

The present invention discloses an energy-saving ventilator, which includes an exhaust cylinder and a box body. An annular sliding groove is provided on the inner wall of the exhaust cylinder, and an annular sliding block is slidably arranged in the annular sliding groove. A plurality of connecting rods are connected to the main shaft, and all the plurality of connecting rods are connected to the annular sliding block. A plurality of blades are fixed on the main shaft. The right end of the box body passes through the left wall of the exhaust cylinder and enters the exhaust cylinder. The left end of the box body is open. The left end of the bottom wall of the box body is connected with a mounting plate, and an energy-saving motor is installed on the mounting plate. A driving pulley is connected to the output shaft of the energy-saving motor. A rotating shaft is provided on the rear wall of the box body, and the rotating shaft is rotationally and sealingly connected to the rear wall of the box body. The rear end of the rotating shaft is connected to the main shaft, and a driven pulley is connected to the rotating shaft. A belt is sleeved on the driving pulley and the driven pulley; in this device, the energy-saving motor is installed outside the exhaust cylinder, which is convenient for maintenance after the energy-saving motor is damaged, and can reduce the performance requirements for the energy-saving motor and reduce the production cost.

Description

Technical Field

[0001] The present invention relates to the technical field of ventilators, and particularly to an energy-saving ventilator. Background Art

[0002] A ventilator is a machine that relies on the input mechanical energy to increase the gas pressure and discharge the gas. It is a driven fluid machine. Ventilators are widely used in the ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, the ventilation and induced draft of boilers and industrial furnaces, the cooling and ventilation in air conditioning equipment and household electrical appliances, the drying and selection of grains, the air supply of wind tunnels and the inflation and propulsion of hovercrafts, etc. Most of the current ventilators are driven by energy-saving motors to achieve the energy-saving function.

[0003] The current energy-saving motors of ventilators are all installed inside the exhaust duct. During specific use, for gases with high temperature and large pollution, the gases cannot be directly discharged, otherwise it will cause environmental pollution. At this time, it is necessary to purify and cool the gases, etc. One end of the ventilator needs to be connected to an exhaust device, and the other end needs to be connected to a purification device or a cooling device, etc. After the motor of the current ventilator is damaged, it is necessary to disassemble the ventilator and other equipment for processing, and the operation is complicated. And due to the different exhaust gases, the motor needs to have strong high-temperature and corrosion resistance capabilities, which requires high performance of the energy-saving motor and results in increased costs. Summary of the Invention

[0004] Aiming at the defects in the prior art, the present invention provides a ventilator. In this device, the energy-saving motor is installed outside the exhaust duct, which is convenient for maintenance after the energy-saving motor is damaged, and can reduce the performance requirements for the energy-saving motor and reduce the production cost.

[0005] An energy-saving ventilator includes an exhaust duct and a box body. An annular sliding groove is provided on the inner wall of the exhaust duct, and an annular sliding block is slidably arranged in the annular sliding groove. A plurality of connecting rods are connected to the main shaft, and all the plurality of connecting rods are connected to the annular sliding block. A plurality of blades are fixed on the main shaft. The right end of the box body passes through the left wall of the exhaust duct and enters the exhaust duct. The left end of the box body is open. The left end of the bottom wall of the box body is connected to a mounting plate, and an energy-saving motor is installed on the mounting plate. A driving pulley is connected to the output shaft of the energy-saving motor. A rotating shaft is provided on the rear wall of the box body, and the rotating shaft is rotationally and sealingly connected to the rear wall of the box body. The rear end of the rotating shaft is connected to the main shaft, and a driven pulley is connected to the rotating shaft. A belt is sleeved on the driving pulley and the driven pulley.

[0006] Preferably, a square hole is formed at the front end of the main shaft, a square column is connected to the rear end of the rotating shaft, a notch is formed in the left wall of the exhaust duct, the length of the notch in the front-back direction is greater than the length of the box body in the front-back direction, the box body passes through the notch, and the box body can move back and forth in the notch. A fixing plate is connected to the box body. When the rear wall of the box body contacts the rear wall of the notch, the square column enters the square hole. The fixing plate is detachably connected to the outer wall of the exhaust duct, the sealing member is detachably connected to the outer wall of the exhaust duct, the sealing member completely seals the gap between the front wall of the notch and the front wall of the box body, the front plate of the box body is detachably connected to the box body, the top wall of the box body contacts the top wall of the notch, and the bottom wall of the box body contacts the bottom wall of the notch.

[0007] Preferably, the sealing member includes a right plate and a rear plate. The rear plate is connected to the left wall of the right plate, the right plate is detachably connected to the outer wall of the exhaust duct, and the rear wall of the rear plate is detachably connected to the front wall of the box body.

[0008] Preferably, the fixing plate is connected to the outer wall of the exhaust duct by a plurality of first bolts.

[0009] Preferably, the right plate is connected to the outer wall of the exhaust duct by a plurality of second bolts.

[0010] Preferably, the rear plate is connected to the front wall of the box body by a plurality of third bolts.

[0011] Preferably, the plurality of blades are evenly distributed circumferentially around the main shaft.

[0012] Preferably, the plurality of connecting rods are evenly distributed circumferentially around the main shaft.

[0013] Preferably, magnets are embedded in the side walls of the square hole, and the square column is made of a magnetic metal material.

[0014] The beneficial effects of the present invention are reflected in that: in the technical solution, an annular chute is arranged on the inner wall of the exhaust duct, an annular slider is slidably arranged in the annular chute, the main shaft is connected to the annular slider through a plurality of connecting rods, so that the main shaft is rotatably arranged in the exhaust duct, and a plurality of blades are arranged on the main shaft to realize the function of exhausting air. The right end of the box body enters the exhaust duct, a rotating shaft is rotatably arranged on the rear wall of the box body, the rear end of the rotating shaft is connected to the main shaft, a driven pulley is sleeved on the rotating shaft, the left end of the bottom wall of the box body is connected to a mounting plate, an energy-saving motor is mounted on the mounting plate, a driving pulley is connected to the output shaft of the energy-saving motor, a belt is sleeved on the driving pulley and the driven pulley. During operation, the energy-saving motor is started to drive the blades to rotate, realizing the function of exhausting air. The energy-saving motor can play an energy-saving role. In this way, the energy-saving motor is installed outside the exhaust duct. After the energy-saving motor is damaged, it can be directly repaired without disassembling the exhaust fan and other equipment for repair, which is convenient for repair after the energy-saving motor is damaged. And only the rotating shaft and the rear wall of the box body need to be rotatably and sealingly arranged. The energy-saving motor does not need to be in direct contact with the tail gas, so it does not need to have strong high-temperature resistance and corrosion resistance, which can reduce the performance requirements for the energy-saving motor and reduce the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally denoted by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0016] Figure 1 It is a schematic diagram of the overall structure of the exhaust duct in the present invention;

[0017] Figure 2 It is a front sectional view of the box body in the present invention;

[0018] Figure 3 It is a schematic diagram of the connection structure of the rotating shaft, the square column and the driven pulley in the present invention;

[0019] Figure 4 It is a schematic diagram of the overall structure of the connecting piece in the present invention.

[0020] In the drawings, 1-exhaust duct, 2-main shaft, 3-blade, 4-connecting rod, 5-annular slider, 6-notch, 7-box body, 8-mounting plate, 9-energy-saving motor, 10-driving pulley, 11-driven pulley, 12-rotating shaft, 13-belt, 14-square column, 15-square hole, 16-fixed plate, 17-right plate, 18-rear plate, 19-first bolt, 20-second bolt, 21-third bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The embodiments of the technical solution of the present invention will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solution of the present invention more clearly, so they are only examples and cannot be used to limit the protection scope of the present invention.

[0022] It should be noted that unless otherwise specified, the technical terms or scientific terms used in this application should have the ordinary meaning understood by those skilled in the art to which the present invention belongs.

[0023] Embodiment

[0024] As Figure 1 shown, in this embodiment, an energy-saving ventilator is provided, which includes an exhaust duct 1 and a box body 7. An annular chute is provided on the inner wall of the exhaust duct 1, and an annular slider 5 is slidably arranged in the annular chute. A plurality of connecting rods 4 are connected to the main shaft 2, and all the plurality of connecting rods 4 are connected to the annular slider 5. A plurality of blades 3 are fixed on the main shaft 2. The right end of the box body 7 passes through the left wall of the exhaust duct 1 and enters the exhaust duct 1. The left end of the box body 7 is open. The left end of the bottom wall of the box body 7 is connected to a mounting plate 8, and an energy-saving motor 9 is mounted on the mounting plate 8. A driving pulley 10 is connected to the output shaft of the energy-saving motor 9. A rotating shaft 12 is provided on the rear wall of the box body 7, and the rotating shaft 12 is rotatably and sealingly connected to the rear wall of the box body 7. The rear end of the rotating shaft 12 is connected to the main shaft 2. A driven pulley 11 is connected to the rotating shaft 12, and a belt 13 is sleeved on the driving pulley 10 and the driven pulley 11.

[0025] In this embodiment, an annular chute is arranged on the inner wall of the exhaust duct 1, and an annular slider 5 is slidably arranged in the annular chute. The main shaft 2 is connected to the annular slider 5 through a plurality of connecting rods 4, so that the main shaft 2 is rotatably arranged in the exhaust duct 1. A plurality of blades 3 are arranged on the main shaft 2 to realize the function of exhausting air. By arranging the box body 7, the right end of the box body 7 enters the exhaust duct 1. A rotating shaft 12 is rotatably arranged on the rear wall of the box body 7, and the rear end of the rotating shaft 12 is connected to the main shaft 2. A driven pulley 11 is sleeved on the rotating shaft 12. The left end of the bottom wall of the box body 7 is connected to a mounting plate 8, and an energy-saving motor 9 is installed on the mounting plate 8. A driving pulley 10 is connected to the output shaft of the energy-saving motor 9. A belt 13 is sleeved on the driving pulley 10 and the driven pulley 11. During operation, the energy-saving motor 9 is started to drive the driving pulley 10 to move. The driving pulley 10 drives the belt 13 to move. The belt 13 drives the driven pulley 11 to move. The driven pulley 11 drives the rotating shaft 12 to rotate. The rotating shaft 12 drives the main shaft 2 to rotate, and then drives the blades 3 to rotate to realize the function of exhausting air. The energy-saving motor 9 can play an energy-saving role. In this way, the energy-saving motor 9 is installed outside the exhaust duct 1. After the energy-saving motor 9 is damaged, it can be directly repaired without disassembling the exhaust fan and other equipment for repair, which is convenient for repair after the energy-saving motor 9 is damaged. And only the rotating shaft 12 and the rear wall of the box body 7 need to be rotatably and sealed. The energy-saving motor 9 does not need to be in direct contact with the tail gas. Therefore, the energy-saving motor 9 does not need to have strong high-temperature resistance and corrosion resistance, which can reduce the performance requirements for the energy-saving motor 9 and reduce the production cost.

[0026] In this embodiment, a square hole 15 is opened at the front end of the main shaft 2, and a square column 14 is connected to the rear end of the rotating shaft 12. A notch 6 is opened on the left wall of the exhaust duct 1. The length of the notch 6 in the front-back direction is greater than the length of the box body 7 in the front-back direction. The box body 7 passes through the notch 6, and the box body 7 can move back and forth in the notch 6. A fixing plate 16 is connected to the box body 7. When the rear wall of the box body 7 contacts the rear wall of the notch 6, the square column 14 enters the square hole 15. The fixing plate 16 is detachably connected to the outer wall of the exhaust duct 1. The sealing member is detachably connected to the outer wall of the exhaust duct 1. The sealing member completely seals the gap between the front wall of the notch 6 and the front wall of the box body 7. The front plate of the box body 7 is detachably connected to the box body 7. The top wall of the box body 7 contacts the top wall of the notch 6, and the bottom wall of the box body 7 contacts the bottom wall of the notch 6.

[0027] In this device, since the belt 13 is provided for driving, after the belt 13 wears to a certain strength, it needs to be replaced. Since the belt 13 is located inside the box body 7, and the right part of the box body 7 is located inside the exhaust duct 1, it is very inconvenient to replace the belt 13. In this embodiment, a notch 6 is opened on the left wall of the exhaust duct 1. The length of the notch 6 in the front-back direction is greater than the length of the box body 7 in the front-back direction. In the normal use state, the rear wall of the box body 7 contacts the rear wall of the notch 6, the square column 14 enters the square hole 15, and the sealing member seals the remaining part of the notch 6 to prevent gas from being discharged through the notch 6. At this time, when the energy-saving motor 9 rotates, it can drive the rotating shaft 12 to rotate. The rotation of the rotating shaft 12 drives the square column 14 to rotate, and then drives the main shaft 2 to rotate. When the belt 13 needs to be replaced, the sealing member is removed, the connection part between the box body 7 and the exhaust duct 1 is removed, the box body 7 is moved forward so that the square column 14 is separated from the square hole 15, then the box body 7 is pulled out from the notch 6, and then the front plate of the box body 7 is removed, and then the belt 13 is replaced. In this way, when replacing the belt 13, it is not necessary to disassemble the exhaust fan and other equipment, and only the box body 7 needs to be taken out for replacement, which further improves the convenience of device maintenance.

[0028] Specifically, in the process of sealing the notch 6, a corresponding sealing tape can also be used for further sealing to ensure the sealing performance of the notch 6.

[0029] In this embodiment, the sealing member includes a right plate 17 and a rear plate 18. The rear plate 18 is connected to the left wall of the right plate 17. The right plate 17 is detachably connected to the outer wall of the exhaust duct 1, and the rear wall of the rear plate 18 is detachably connected to the front wall of the box body 7. In this embodiment, the sealing member includes a right plate 17 and a rear plate 18. After installation, the right plate 17 is connected to the outer wall of the exhaust duct 1, and the rear plate 18 is connected to the front wall of the box body 7, so as to realize the connection and fixation of the sealing member.

[0030] In this embodiment, the fixing plate 16 is connected to the outer wall of the exhaust duct 1 by a plurality of first bolts 19.

[0031] In this embodiment, the right plate 17 is connected to the outer wall of the exhaust duct 1 by a plurality of second bolts 20.

[0032] In this embodiment, the rear plate 18 is connected to the front wall of the box body 7 by a plurality of third bolts 21.

[0033] In this embodiment, multiple blades 3 are evenly distributed around the circumference of the main shaft 2.

[0034] In this embodiment, multiple connecting rods 4 are evenly distributed around the circumference of the main shaft 2.

[0035] In this embodiment, a magnet is embedded in the side wall of the square hole 15, and the square column 14 is made of a magnetic metal material. In this embodiment, a magnet is embedded in the side wall of the square hole 15. After the square column 14 enters the square hole 15, the magnet attracts the square column 14, thereby improving the stability of the square column 14 after being embedded in the square hole 15.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present invention, and they should all be covered by the scope of the claims and the specification of the present invention.

Claims

1. An energy-saving ventilator, characterized in that, It includes an exhaust duct (1) and a box body (7). An annular sliding groove is provided on the inner wall of the exhaust duct (1), and an annular sliding block (5) is slidably arranged in the annular sliding groove. A plurality of connecting rods (4) are connected to the main shaft (2), and all the plurality of connecting rods (4) are connected to the annular sliding block (5). A plurality of blades (3) are fixed on the main shaft (2). The right end of the box body (7) passes through the left wall of the exhaust duct (1) and enters the exhaust duct (1). The left end of the box body (7) is open. An installation plate (8) is connected to the left end of the bottom wall of the box body (7). An energy-saving motor (9) is installed on the installation plate (8). A driving pulley (10) is connected to the output shaft of the energy-saving motor (9). A rotating shaft (12) is provided on the rear wall of the box body (7). The rotating shaft (12) is rotationally and sealingly connected to the rear wall of the box body (7). The rear end of the rotating shaft (12) is connected to the main shaft (2). A driven pulley (11) is connected to the rotating shaft (12). A belt (13) is sleeved on the driving pulley (10) and the driven pulley (11). A square hole (15) is opened at the front end of the main shaft (2). A square column (14) is connected to the rear end of the rotating shaft (12). A notch (6) is opened on the left wall of the exhaust duct (1). The length of the notch (6) in the front-rear direction is greater than the length of the box body (7) in the front-rear direction. The box body (7) passes through the notch (6), and the box body (7) can move back and forth in the notch (6). A fixing plate (16) is connected to the box body (7). When the rear wall of the box body (7) contacts the rear wall of the notch (6), the square column (14) enters the square hole (15). The fixing plate (16) is detachably connected to the outer wall of the exhaust duct (1). A sealing member is detachably connected to the outer wall of the exhaust duct (1). The sealing member completely seals the gap between the front wall of the notch (6) and the front wall of the box body (7). The front plate of the box body (7) is detachably connected to the box body (7). The top wall of the box body (7) contacts the top wall of the notch (6), and the bottom wall of the box body (7) contacts the bottom wall of the notch (6). The sealing member includes a right plate (17) and a rear plate (18). The rear plate (18) is connected to the left wall of the right plate (17). The right plate (17) is detachably connected to the outer wall of the exhaust duct (1). The rear wall of the rear plate (18) is detachably connected to the front wall of the box body (7). In the normal use state, the rear wall of the box body (7) contacts the rear wall of the notch (6), the square column (14) enters the square hole (15), and the sealing member seals the remaining part of the notch (6) to prevent gas from being discharged through the notch (6). At this time, when the energy-saving motor (9) rotates, it can drive the rotating shaft (12) to rotate. The rotation of the rotating shaft (12) drives the square column (14) to rotate, and then drives the main shaft (2) to rotate. When the belt (13) needs to be replaced, the sealing member is removed, the connection part between the box body (7) and the exhaust duct (1) is removed, the box body (7) is moved forward, so that the square column (14) is separated from the square hole (15), then the box body (7) is pulled out from the notch (6), and then the front plate of the box body (7) is removed, and then the belt (13) is replaced.

2. The energy-saving ventilator according to claim 1, characterized in that, The fixing plate (16) is connected to the outer wall of the exhaust duct (1) through a plurality of first bolts (19).

3. The energy-saving ventilator according to claim 1, characterized in that, The right plate (17) is connected to the outer wall of the exhaust duct (1) by a plurality of second bolts (20).

4. An energy-saving ventilator according to claim 1, characterized in that, The rear plate (18) is connected to the front wall of the box body (7) by a plurality of third bolts (21).

5. The energy-saving ventilator according to claim 1, characterized in that, A plurality of the blades (3) are evenly distributed circumferentially around the main shaft (2).

6. The energy-saving ventilator according to claim 1, characterized in that, A plurality of the connecting rods (4) are evenly distributed circumferentially around the main shaft (2).

7. An energy-saving ventilator according to claim 2, characterized in that, Magnets are embedded in the side walls of the square hole (15), and the square column (14) is made of a magnetic metal material.

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