A jet fan with water cooling function

By designing an angle adjustment device on the jet fan, the problem that the existing fog cannon machine cannot be adjusted in a pitch angle state is solved, the scope of use is expanded, and more flexible applications are achieved.

CN113944647BActive Publication Date: 2025-04-04ZHEJIANG SHENLI ELECTROMECHANICAL CO LTD
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Patent Information

Application Number
CN202111198563.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-10-14
Publication Date
2025-04-04
Estimated Expiration
2041-10-14

AI Technical Summary

Technical Problem

The existing fog cannon machines are generally in an elevation state and cannot be adjusted to a dive angle state, which limits its use range.

Method used

A jet fan with water cooling function is designed, equipped with an angle adjustment device, which can be adjusted in an elevation state or a pitch state. The device drives the lead screw to rotate through the motor and drives the connecting rod system to realize the angle adjustment of the fan.

Benefits of technology

Through the design of the angle adjustment device, the scope of use of the fog cannon type jet fan is expanded and can adapt to application needs at different angles.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a jet fan with a water cooling function, comprising a cylindrical air inlet tube and an air outlet tube, wherein one end of the air outlet tube away from the air inlet tube is bent to form a convex ring with an arc-shaped cross-section, a circular water spray ring is inserted in the convex ring, a plurality of water spray holes are formed on the inner circle of the water spray ring, a water pipe connecting pipe is inserted and fixed at the lower end of the convex ring, and the upper end of the water pipe connecting pipe is inserted in the water spray ring; hinged pillars are welded and fixed on the outer walls opposite to each other on both sides of the air inlet tube, a rotating chassis is provided directly below the air inlet tube, an hinged bracket is fixed on the rotating chassis, the hinged bracket comprises a bottom beam, obliquely placed oblique support beams are formed at both ends of the bottom beam, vertical support columns are formed at the upper end of the oblique support beam, and the hinged pillars on both sides of the air inlet tube are respectively inserted into the support columns at both ends of the bottom beam.
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Description

Technical Field

[0001] The invention relates to the technical field of fans, and more particularly to a jet fan with a water cooling function. Background Art

[0002] A jet fan is a special axial flow fan with open inlet and outlet. The force exerted by a jet fan on the air is usually referred to as thrust. Ventilation is achieved by using the thrust. It is generally used in the longitudinal ventilation systems of tunnels such as roads, railways and subways. When a jet fan is combined with water vapor, the airflow generated by the jet fan is used to change the water vapor into water mist, and the water mist can be emitted to a farther place, which is what we call a fog cannon in reality. It can be used for dust reduction and for watering and cooling tall trees. Therefore, existing fog cannons are generally in an elevation state and cannot be adjusted to a depression state. However, fog cannons can also be used for sterilization and epidemic prevention. They can be used to disinfect and kill insects on plants, so fog cannons also need to be adjusted to a depression state. Summary of the invention

[0003] The purpose of the present invention is to address the deficiencies of the prior art and to provide a jet fan with a water cooling function. The jet fan is provided with an angle adjustment device, which can adjust the jet fan to an elevation state or a depression state, thereby expanding the use range of the fog cannon type jet fan.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0005] A jet fan with a water cooling function comprises a cylindrical air inlet tube, an axial flow fan is arranged in the air inlet tube, and the air outlet of the air inlet tube is fixedly connected to a conical air outlet tube, characterized in that: an end of the air outlet tube away from the air inlet tube is bent to form a convex ring with a circular arc cross-section, a circular water spray ring is inserted in the convex ring, a plurality of water spray holes are formed on the inner ring of the water spray ring, a water pipe connecting pipe is inserted and fixed at the lower end of the convex ring, and the upper end of the water pipe connecting pipe is inserted in the water spray ring; hinged pillars are welded and fixed to the outer walls opposite to each other on both sides of the air inlet tube, a rotating chassis is provided directly below the air inlet tube, an hinged bracket is fixed on the rotating chassis, the hinged bracket comprises a bottom beam, oblique oblique support beams are formed at both ends of the bottom beam, and vertical support columns are formed at the upper end of the oblique support beam, and the hinged pillars on both sides of the air inlet tube are respectively inserted into the support columns at both ends of the bottom beam;

[0006] On the outer wall of the lower end of the air inlet duct close to the convex ring, there is an ear plate welded and fixed. An inclined first connecting rod is hinged on the ear plate through a pin shaft. The lower end of the first connecting rod is hinged with an inclined second connecting rod through a pin shaft. The lower end of the second connecting rod is hinged on an ear seat through a pin shaft, and the ear seat is fixed on the rotating chassis. First guiding grooves and second guiding grooves are respectively formed on the first connecting rod and the second connecting rod. A first connecting column is inserted into the first guiding groove of the first connecting rod. Both ends of the first connecting column are inserted and fixed with inclined support rods, and the lower ends of the support rods are fixed on a cross beam, and both ends of the cross beam are fixed on support columns. A second connecting column is inserted into the second guiding groove of the second connecting rod. The second connecting column is inserted and fixed on a driving rod. A third guiding groove is formed on the driving rod, and the cross beam is inserted into the third guiding groove of the driving rod. One end of the driving rod away from the second connecting rod is inserted into a "C"-shaped motor bracket. A motor is fixed on the motor bracket. A lead screw parallel to the driving rod is fixedly connected to the rotating shaft of the motor through a coupling. The lead screw is screwed on the driving rod, and the end of the lead screw is inserted into the cross beam.

[0007] Preferably, a cross beam is formed between the lower ends of the support columns on the hinge bracket. A vertical beam is formed in the middle of the cross beam, and the lower end of the vertical beam is formed on the bottom beam.

[0008] Preferably, a through hole is formed in the middle of the rotating chassis. Threading holes are formed in the middle of the bottom beam, the vertical beam and the cross beam on the hinge bracket, all of which are aligned with the through hole.

[0009] Preferably, the inclination angle of the second connecting rod is greater than that of the first connecting rod, and the inclination directions of the second connecting rod and the first connecting rod are the same.

[0010] Preferably, a convex block is formed on the upper end surface of the lower end of the first connecting rod, and a water pipe insertion hole is formed on the convex block.

[0011] Preferably, the central axes of the air inlet duct, the air outlet duct and the water spraying ring coincide, and the water spraying holes are evenly distributed in a ring around the central axis of the water spraying ring.

[0012] Preferably, the diameter of the air outlet duct near the air inlet duct end is larger than that of the end far from the air inlet duct.

[0013] The beneficial effect of the present invention is that the adopted jet fan is provided with an angle adjusting device, which can adjust the jet fan to an elevation angle state or a depression angle state, and can expand the use range of the fog cannon type jet fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0015] Figure 2 It is a three-dimensional structural schematic diagram of another angle of the present invention;

[0016] Figure 3 It is a schematic structural diagram of the side view of the present invention.

[0017] In the figure: 1. air inlet tube; 2. air outlet tube; 21. convex ring; 3. water spray ring; 31. water spray hole; 4. water pipe connecting pipe; 5. hinged bracket; 51. bottom beam; 52. oblique support beam; 53. support column; 54. vertical beam; 55. horizontal support beam; 5. hinged bracket; 6. first connecting rod; 61. first guide groove; 7. second connecting rod; 71. second guide groove; 8. driving rod; 81. third guide groove; 9. ear plate; 10. ear seat; 11. second connecting column; 12. cross beam; 13. motor bracket; 14. motor; 15. screw; 16. bracket rod; 17. first connecting column; 18. rotating chassis; 19. hinged pillar. DETAILED DESCRIPTION

[0018] Example: See Figures 1 to 3 As shown, a jet fan with a water cooling function comprises a cylindrical air inlet 1, an axial flow fan is arranged in the air inlet 1, a conical air outlet 2 is fixedly connected to the air outlet of the air inlet 1, a convex ring 21 with a circular arc cross section is bent at one end of the air outlet 2 away from the air inlet 1, a circular water spray ring 3 is inserted in the convex ring 21, a plurality of water spray holes 31 are formed on the inner ring of the water spray ring 3, a water pipe 4 is inserted and fixed at the lower end of the convex ring 21, and the upper end of the water pipe 4 is The ends are inserted into the water spray ring 3; hinged pillars 19 are welded and fixed on the opposite outer walls of the air inlet cylinder 1, and a rotating chassis 18 is provided directly below the air inlet cylinder 1, and an articulated bracket 5 is fixed on the rotating chassis 18, and the articulated bracket 5 includes a bottom beam 51, and oblique support beams 52 are formed at both ends of the bottom beam 51, and vertical support columns 53 are formed at the upper ends of the oblique support beams 52, and the hinged pillars 19 on both sides of the air inlet cylinder 1 are respectively inserted into the support columns 53 at both ends of the bottom beam 51;

[0019] An ear plate 9 is fixedly welded to the outer wall of the lower end of the air inlet pipe 1 close to the convex ring 21. An inclined first connecting rod 6 is hinged to the ear plate 9 through a pin shaft. The lower end of the first connecting rod 6 is hinged to an inclined second connecting rod 7 through a pin shaft. The lower end of the second connecting rod 7 is hinged to an ear seat 10 through a pin shaft, and the ear seat 10 is fixed on the rotating chassis 18. First guiding grooves 61 and second guiding grooves 71 are respectively formed on the first connecting rod 6 and the second connecting rod 7. A first connecting column 17 is inserted into the first guiding groove 61 of the first connecting rod 6. Both ends of the first connecting column 17 are inserted and fixed with inclined support rods 16. The lower ends of the support rods 16 are fixed on a cross beam 12, and both ends of the cross beam 12 are fixed on support columns 53. A second connecting column 11 is inserted into the second guiding groove 71 of the second connecting rod 7. The second connecting column 11 is inserted and fixed on a driving rod 8. A third guiding groove 81 is formed on the driving rod 8, and the cross beam 12 is inserted into the third guiding groove 81 of the driving rod 8. One end of the driving rod 8 away from the second connecting rod 7 is inserted into a "C"-shaped motor bracket 13. A motor 14 is fixed on the motor bracket 13. A lead screw 15 parallel to the driving rod 8 is fixedly connected to the rotating shaft of the motor 14 through a coupling. The lead screw 15 is screwed on the driving rod 8, and the end of the lead screw 15 is inserted into the cross beam 12.

[0020] A cross beam 55 is formed between the lower ends of the support columns 53 on the hinge bracket 5. A vertical beam 54 is formed in the middle of the cross beam 55, and the lower end of the vertical beam 54 is formed on the bottom beam 51.

[0021] A through hole is formed in the middle of the rotating chassis 18. Through holes facing the through hole are formed in the middle of the bottom beam 51, the vertical beam 54, and the cross beam 55 on the hinge bracket 5.

[0022] The inclination angle of the second connecting rod 7 is greater than that of the first connecting rod 6, and the inclination directions of the second connecting rod 7 and the first connecting rod 6 are the same.

[0023] A convex block 62 is formed on the upper end surface of the lower end of the first connecting rod 6, and a water pipe insertion hole is formed on the convex block 62.

[0024] The central axes of the air inlet pipe 1, the air outlet pipe 2, and the water spray ring 3 coincide, and the water spray holes 31 are evenly distributed in a ring around the central axis of the water spray ring 3.

[0025] The diameter of the air outlet pipe 2 at the end close to the air inlet pipe 1 is larger than that at the end away from the air inlet pipe 1.

[0026] Working principle: The present invention is a jet fan with a water cooling function. Its main technical point lies in the angle adjustment structure of the fan, such as Figure 3As shown, the air guide tube of the fan is horizontal (the air guide tube is composed of an air inlet tube 1 and an air outlet tube 2). When it is necessary to adjust the elevation angle, the motor 14 is started to drive the lead screw 15 to rotate. The lead screw 15 drives the driving rod 8 to move toward one end of the air outlet tube 2 through the thread, thereby driving the first connecting rod 6 and the second connecting rod 7 to rotate. The angle of the first connecting rod 6 becomes smaller and the angle of the second connecting rod 7 becomes larger, so that the air guide tube rotates upward around the hinge support 19, and the air guide tube is in an elevation state;

[0027] When it is necessary to adjust the pitch angle, start the motor 14 to drive the screw 15 to rotate in the opposite direction. The screw 15 drives the driving rod 8 to move toward one end of the air inlet of the air inlet tube 1 through the thread, thereby driving the first connecting rod 6 and the second connecting rod 7 to rotate. The angle of the first connecting rod 6 becomes larger and the angle of the second connecting rod 7 becomes smaller, so that the air guide tube can rotate downward around the hinged support 19 and the air guide tube is in a pitch angle state.

[0028] The embodiments are used to illustrate the present invention, but not to limit the present invention. Any person skilled in the art may modify the embodiments without violating the spirit and scope of the present invention, and therefore, the scope of protection of the present invention shall be as set forth in the claims of the present invention.

Claims

1. A jet fan with a water cooling function, comprising a cylindrical air inlet cylinder (1), an axial flow fan is installed in the air inlet cylinder (1), and a conical air outlet cylinder (2) is fixedly connected to the air outlet of the air inlet cylinder (1), characterized in that: One end of the air outlet duct (2) far from the air inlet duct (1) is bent and formed with a convex ring (21) having an arc-shaped cross section. A circular water spray ring (3) is inserted into the convex ring (21). A plurality of water spray holes (31) are formed on the inner ring of the water spray ring (3). A water pipe connection (4) is inserted and fixed at the lower end of the convex ring (21). The upper end of the water pipe connection (4) is inserted into the water spray ring (3); On the opposite outer walls of both sides of the air inlet duct (1), hinge supports (19) are welded and fixed. A rotary chassis (18) is provided directly below the air inlet duct (1). A hinge bracket (5) is fixed on the rotary chassis (18). The hinge bracket (5) includes a bottom beam (51). Oblique support beams (52) are formed at both ends of the bottom beam (51). Vertical support columns (53) are formed at the upper ends of the oblique support beams (52). The hinge supports (19) on both sides of the air inlet duct (1) are respectively inserted into the support columns (53) at both ends of the bottom beam (51); An ear plate (9) is welded and fixed on the outer wall of the lower end of the air inlet duct (1) close to the convex ring (21). An oblique first connecting rod (6) is hinged to the ear plate (9) through a pin shaft. The lower end of the first connecting rod (6) is hinged to an oblique second connecting rod (7) through a pin shaft. The lower end of the second connecting rod (7) is hinged to an ear seat (10) through a pin shaft. The ear seat (10) is fixed on the rotary chassis (18); First guide grooves (61) and second guide grooves (71) are respectively formed on the first connecting rod (6) and the second connecting rod (7). A first connecting column (17) is inserted into the first guide groove (61) of the first connecting rod (6). Oblique support rods (16) are inserted and fixed at both ends of the first connecting column (17). The lower end of the support rod (16) is fixed on a cross beam (12). Both ends of the cross beam (12) are fixed on the support columns (53); A second connecting column (11) is inserted into the second guide groove (71) of the second connecting rod (7). The second connecting column (11) is inserted and fixed on a driving rod (8). A third guide groove (81) is formed on the driving rod (8). The cross beam (12) is inserted into the third guide groove (81) of the driving rod (8); One end of the driving rod (8) far from the second connecting rod (7) is inserted into a "C"-shaped motor support (13). A motor (14) is fixed on the motor support (13). A lead screw (15) parallel to the driving rod (8) is fixedly connected to the rotating shaft of the motor (14) through a coupling. The lead screw (15) is screwed on the driving rod (8). The end of the lead screw (15) is inserted into the cross beam (12); The inclination angle of the second connecting rod (7) is greater than that of the first connecting rod (6). The inclination direction of the second connecting rod (7) is the same as that of the first connecting rod (6).

2. A jet fan with water cooling function according to claim 1, characterized in that: A cross support beam (55) is formed between the lower ends of the support columns (53) on the hinge bracket (5). A vertical beam (54) is formed in the middle of the cross support beam (55). The lower end of the vertical beam (54) is formed on the bottom beam (51).

3. The jet fan with water cooling function according to claim 2, characterized in that: A through hole is formed in the middle of the rotating chassis (18), and threading holes facing the through hole are formed in the middle of the bottom beam (51) on the hinged bracket (5), the vertical beam (54) and the middle of the horizontal beam (55).

4. The jet fan with water cooling function according to claim 1, characterized in that: A convex block (62) is formed on the upper end surface of the lower end of the first connecting rod (6), and a water pipe insertion hole is formed on the convex block (62).

5. The jet fan with water cooling function according to claim 1, characterized in that: The central axis of the air inlet cylinder (1), the central axis of the air outlet cylinder (2) and the central axis of the water spray ring (3) coincide with each other, and the water spray holes (31) are evenly distributed in a ring shape around the central axis of the water spray ring (3).

6. The jet fan with water cooling function according to claim 5, characterized in that: The diameter of the air outlet cylinder (2) at one end close to the air inlet cylinder (1) is larger than the diameter of the end far from the air inlet cylinder (1).

Citation Information

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