A cooling fan with infinitely adjustable tilt angle

Abstract

The present invention discloses an air cooler with infinitely adjustable tilt angle, comprising an air duct, two fixed legs are fixed on the right end of the air duct, and an adjusting leg is provided on the left end of the air duct; the adjusting leg comprises a transverse tie rod extending frontward and rearward and a support rod symmetrically fixed to the two ends of the transverse tie rod frontward and rearward, an adjusting disk is fixed to the upper end of the support rod, the adjusting disk is rotatably connected to the supporting shaft of a support seat, and the support seat is fixed to the outer wall of the air duct; a plurality of circumferentially evenly distributed adjusting holes are formed on the adjusting disk, an adjusting pin is sleeved in one of the adjusting holes, and the adjusting pin is screwed on the threaded hole of the support seat; the lower end of the support rod is inserted into a telescopic sleeve, and a set of hydraulic support adjustment mechanism is provided between the two support rods and the corresponding support sleeves.

Description

Technical Field

[0001] The invention relates to the technical field of fans, and in particular to a cooling fan with an infinitely adjustable tilt angle. Background Art

[0002] A fan refers to an appliance that generates wind to cool down on hot days. A fan is an electrically driven device that generates airflow. The fan inside is powered on and then rotates to generate natural wind to achieve the effect of cooling down. When the fan is working, its inclination angle needs to be adjusted reasonably so that the user can get a better experience. The fan is generally placed on the ground through a bracket, but the existing bracket is generally fixedly connected to the fan's wind tube, and the air outlet angle cannot be adjusted, or 2-4 fixed angles are set between the bracket and the wind tube, and the fan outlet angle cannot be adjusted according to actual needs, and the practicality is poor. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a cold air fan with an infinitely adjustable tilt angle. The angle of the air duct can be changed by inserting an adjusting pin into different adjustment holes and adjusting the extended length of the telescopic sleeve on the support rod. The angle can be adjusted arbitrarily, thereby improving the practicality of the fan.

[0004] The solution of the present invention to solve the technical problem is:

[0005] A cold air blower with infinitely adjustable tilt angle comprises a hollow cylindrical air duct, a motor is fixed in the air duct, an impeller is connected to the driving shaft of the motor, two fixed legs symmetrically arranged front and back are fixed on the lower side wall of the right end of the air duct, and an adjusting leg is provided at the left end of the air duct;

[0006] The adjusting foot comprises a horizontal tie rod extending forward and backward and a supporting rod symmetrically fixed to both ends of the horizontal tie rod. An adjusting disk is fixed to the upper end of the supporting rod. The adjusting disk is rotatably connected to the supporting shaft of the supporting seat. The supporting seat is fixed to the outer wall of the wind tube. A plurality of adjusting holes evenly distributed around the circumference are formed on the adjusting disk. An adjusting pin is sleeved in one of the adjusting holes. The adjusting pin is screwed to the threaded hole of the supporting seat.

[0007] The lower end of the support rod is inserted into the telescopic sleeve, and a set of hydraulic support adjustment mechanism is arranged between the two support rods and the corresponding telescopic sleeves.

[0008] The adjusting pin is formed with a hexagonal countersunk hole with an outer opening.

[0009] The middle part of the tie rod is formed with an arc-shaped notch, and the front and rear ends of the arc-shaped notch are formed with front-to-back symmetrical piston holes;

[0010] The support rod is formed with a first flow channel with an opening at the lower side, and a second flow channel communicating with the corresponding first flow channel is formed on the bottom surface of each piston hole;

[0011] A fixed piston is formed at the lower end of the support rod, and a long cylinder hole with an upper opening is formed on the telescopic sleeve, and the fixed piston is inserted into the long cylinder hole;

[0012] The hydraulic support adjustment mechanism comprises two adjustment pistons respectively inserted into two piston holes, one end of each adjustment piston facing the other adjustment piston is fixed with an adjustment screw, the threads of the two adjustment screws are arranged in opposite directions and are respectively screwed to the two ends of the hexagonal column, the two ends of the hexagonal column are pressed against the limit block, and the limit block is fixed in the arc-shaped notch;

[0013] An inner wall thread is formed on the outer wall of the upper end of the long cylinder hole, and the hydraulic support adjustment mechanism also includes an adjustment pressure block screwed on the inner wall thread, and a compression spring is clamped between the adjustment pressure block and the upper end surface of the fixed piston;

[0014] The cavity surrounded by the regulating piston and the corresponding piston hole, the first flow channel, the second flow channel, the long cylinder hole and the fixed piston is filled with hydraulic oil.

[0015] The upper end of the regulating pressing block is formed with a hollow hexagonal column, and the upper end of the hollow hexagonal column extends to the upper end of the telescopic sleeve.

[0016] The outer wall of the telescopic sleeve is formed with a mesh pattern.

[0017] The upper end of the support rod is formed with a scale.

[0018] The lower end of the fixed support leg is formed with a hemispherical head.

[0019] The outstanding effect of the present invention is that compared with the prior art, the angle of the wind tube can be changed by adjusting the pin sleeve in different adjustment holes and adjusting the extension length of the telescopic sleeve on the support rod, and the angle can be adjusted arbitrarily, thereby improving the practicality of the fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A half-section view of the present invention;

[0021] Figure 2 for Figure 1 About the cross-sectional view of AA;

[0022] Figure 3 for Figure 1 A partial enlarged view of B;

[0023] Figure 4 Figure 2 A partial enlarged view of C;

[0024] Figure 5 for Figure 2 A partial enlarged view of D;

[0025] Figure 6 for Figure 5 About the cross-sectional view of EE. DETAILED DESCRIPTION

[0026] For example, see Figures 1 to 6 As shown, a cooling fan with infinitely adjustable tilt angle comprises a hollow cylindrical air duct 11, a motor 12 is fixed in the air duct 11, an impeller 13 is connected to the driving shaft of the motor 12, two fixed legs 2 symmetrically arranged front and back are fixed on the lower side wall of the right end of the air duct 11, and an adjusting leg 3 is provided at the left end of the air duct 11;

[0027] The adjusting foot 3 comprises a horizontal tie rod 31 extending forward and backward and a support rod 32 symmetrically fixed to both ends of the horizontal tie rod 31. An adjusting disk 33 is fixed to the upper end of the support rod 32. The adjusting disk 33 is rotatably connected to a support shaft 341 of a support seat 34. The support seat 34 is fixed to the outer wall of the wind tube 11. The adjusting disk 33 is formed with a plurality of adjusting holes 331 evenly distributed around the circumference. An adjusting pin 35 is sleeved in one of the adjusting holes 331. The adjusting pin 35 is screwed to a threaded hole 342 of the support seat 34.

[0028] The lower end of the support rod 32 is inserted into the telescopic sleeve 36 , and a set of hydraulic support adjustment mechanism 4 is provided between the two support rods 32 and the corresponding telescopic sleeves 36 .

[0029] Furthermore, the adjusting pin 35 is formed with a hexagonal countersunk hole 351 with an outer opening.

[0030] Furthermore, the middle portion of the tie rod 31 is formed with an arc-shaped notch 311, and the front and rear ends of the arc-shaped notch 311 are formed with front-to-back symmetrical piston holes 312;

[0031] The support rod 32 is formed with a first flow channel 321 with an opening at the lower side, and a second flow channel 313 communicating with the corresponding first flow channel 321 is formed on the bottom surface of each piston hole 312;

[0032] A fixed piston 322 is formed at the lower end of the support rod 32, and a long cylinder hole 361 with an upper opening is formed on the telescopic sleeve 36, and the fixed piston 322 is inserted into the long cylinder hole 361;

[0033] The hydraulic support adjustment mechanism 4 includes two adjustment pistons 41 respectively inserted into two piston holes 312, and an adjustment screw 42 is fixed to one end of each adjustment piston 41 facing the other adjustment piston 41. The threads of the two adjustment screws 42 are arranged in opposite directions and are respectively screwed to the two ends of the hexagonal column 43. The two ends of the hexagonal column 43 are pressed against the limit block 44, and the limit block 44 is fixed in the arc-shaped notch 311.

[0034] An inner wall thread 362 is formed on the outer wall of the upper end of the long cylinder hole 361, and the hydraulic support adjustment mechanism 4 also includes an adjustment pressure block 45 screwed on the inner wall thread 362, and a compression spring 46 is clamped between the adjustment pressure block 45 and the upper end surface of the fixed piston 322;

[0035] The cavity surrounded by the regulating piston 41 and the corresponding piston hole 312 , the first flow channel 321 , the second flow channel 313 , the long cylinder hole 361 and the fixed piston 322 is filled with hydraulic oil 47 .

[0036] Furthermore, a hollow hexagonal column 451 is formed at the upper end of the adjusting pressing block 45 , and the upper end of the hollow hexagonal column 451 extends to the upper end of the telescopic sleeve 36 .

[0037] Furthermore, a mesh pattern 363 is formed on the outer wall of the telescopic sleeve 36 .

[0038] Furthermore, a scale 323 is formed on the upper end of the support rod 32 .

[0039] Furthermore, a hemispherical head 21 is formed at the lower end of the fixed support leg 2 .

[0040] Working principle: when it is necessary to adjust the air outlet angle of the fan, unscrew the adjusting pin 35, then rotate the adjusting foot 3 to align the other adjusting hole 331 with the threaded hole, then insert the adjusting pin 35 and screw it on the threaded hole 342 again, insert the adjusting pin into different adjusting holes 331, thereby changing the angle of the adjusting foot 3, thereby adjusting the angle of the wind tube; then rotate the hexagonal column 43, the hexagonal column 43 drives the two adjusting screws 42 to move away from or close to each other, the adjusting screw 42 drives the adjusting piston 41 to move, when the adjusting piston 41 moves outward, the adjusting piston squeezes the hydraulic pressure through the first flow channel and the second flow channel into the long cylinder hole 361, thereby pushing the telescopic sleeve 36 downward, thereby changing the extension length of the telescopic sleeve 36 on the support rod, thereby further adjusting the angle of the wind tube; on the contrary, when the adjusting piston 41 moves inward, the telescopic sleeve 36 moves up; by changing the inclination angle of the wind tube, the air outlet angle of the fan is adjusted, thereby improving the practicality of the fan.

[0041] Finally, the above implementation modes are only used to illustrate the present invention, and are not intended to limit the present invention. Ordinary technicians in the relevant technical field may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the present invention. The scope of patent protection of the present invention should be defined by the claims.

Claims

1. A cooling fan with an infinitely adjustable tilt angle, comprising a hollow cylindrical air duct (11), a motor (12) being fixed inside the air duct (11), and an impeller (13) being connected to a driving shaft of the motor (12), characterized in that: Two fixed legs (2) are fixed on the lower side wall of the right end of the wind tube (11) and are symmetrically arranged front and back, and an adjustment leg (3) is provided on the left end of the wind tube (11); The adjusting support foot (3) comprises a cross-tie rod (31) extending forward and backward and a support rod (32) symmetrically fixed to the two ends of the cross-tie rod (31) in the forward and backward directions; an adjusting disk (33) is fixed to the upper end of the support rod (32); the adjusting disk (33) is rotatably connected to a supporting shaft (341) of a supporting seat (34); the supporting seat (34) is fixed to the outer wall of the wind tube (11); a plurality of adjusting holes (331) uniformly distributed around the circumference are formed on the adjusting disk (33); an adjusting pin (35) is sleeved in one of the adjusting holes (331); the adjusting pin (35) is threadedly connected to a threaded hole (342) of the supporting seat (34); The lower end of the support rod (32) is inserted into the telescopic sleeve (36), and a set of hydraulic support adjustment mechanism (4) is provided between the two support rods (32) and the corresponding telescopic sleeves (36); The middle part of the tie rod (31) is formed with an arc-shaped notch (311), and the front and rear ends of the arc-shaped notch (311) are formed with front-to-back symmetrical piston holes (312); The support rod (32) is formed with a first flow channel (321) with an opening at the bottom, and a second flow channel (313) communicating with the corresponding first flow channel (321) is formed on the bottom surface of each piston hole (312); A fixed piston (322) is formed at the lower end of the support rod (32), and a long cylinder hole (361) with an upper opening is formed on the telescopic sleeve (36), and the fixed piston (322) is inserted into the long cylinder hole (361); The hydraulic support adjustment mechanism (4) comprises two adjustment pistons (41) respectively inserted into two piston holes (312); an adjustment screw (42) is fixed to one end of each adjustment piston (41) facing the other adjustment piston (41); the threads of the two adjustment screws (42) are arranged in opposite directions and are respectively screwed to the two ends of a hexagonal column (43); the two ends of the hexagonal column (43) are pressed against a limit stopper (44); and the limit stopper (44) is fixed in the arc-shaped notch (311); An inner wall thread (362) is formed on the outer wall of the upper end of the long cylinder hole (361), and the hydraulic support adjustment mechanism (4) also includes an adjustment pressure block (45) screwed on the inner wall thread (362), and a compression spring (46) is clamped between the adjustment pressure block (45) and the upper end surface of the fixed piston (322); The cavity enclosed by the regulating piston (41) and the corresponding piston hole (312), the first flow channel (321), the second flow channel (313), the long cylinder hole (361) and the fixed piston (322) is filled with hydraulic oil (47).

2. The air cooler with infinitely adjustable tilt angle according to claim 1, characterized in that: The adjusting pin (35) is formed with a hexagonal countersunk hole (351) with an outer opening.

3. The air cooler with infinitely adjustable tilt angle according to claim 1, characterized in that: The upper end of the regulating pressing block (45) is formed with a hollow hexagonal column (451), and the upper end of the hollow hexagonal column (451) extends to the upper end of the telescopic sleeve (36).

4. The air cooler with infinitely adjustable tilt angle according to claim 1, characterized in that: A mesh pattern (363) is formed on the outer wall of the telescopic sleeve (36).

5. The air cooler with infinitely adjustable tilt angle according to claim 3, characterized in that: The upper end of the support rod (32) is formed with a scale (323).

6. The air cooler with infinitely adjustable tilt angle according to claim 1, characterized in that: A hemispherical head (21) is formed at the lower end of the fixed support leg (2).

Images