Telescopic supporting device of outdoor large fan

Abstract

The utility model discloses a telescopic supporting device of an outdoor large fan, which comprises a fixed base, the middle part of the top surface of the fixed base is fixedly provided with a main supporting sleeve body and is movably connected with a vertical supporting shaft through a bearing, the vertical supporting shaft is movably connected with an adjusting screw rod sleeve through a bearing, and the vertical supporting shaft is positioned in the adjusting screw rod sleeve; an external thread is formed on the outer side wall of the adjusting screw rod sleeve, the upper portion of the adjusting screw rod sleeve is inserted into a middle vertical through hole of a vertical lifting rod in a sleeved mode, and the external thread of the adjusting screw rod sleeve is in threaded connection with an internal thread formed on the inner side wall of the middle vertical through hole of the vertical lifting rod; the top of the vertical lifting rod extends out of the top end of the main supporting sleeve and is fixedly provided with a fan body. The fan can be arranged outdoors for use, the fan body can be lifted for use, outdoor air flow is improved, and when the fan is not used, the fan body can be lowered so that the fan body can be conveniently detached and covered with a protective cover for external protection.

Description

Technical fields:

[0001] This utility model relates to the field of fan equipment technology, and more specifically to a telescopic support device for a large outdoor fan. Background technology:

[0002] Existing fans are generally installed indoors for circulating indoor air or cooling indoor spaces;

[0003] As for the external environment, it is generally not equipped with fans. However, in some hot weather, it is still necessary to carry out high-temperature operations. In hot weather, when the external air flow is small, the external operation can easily cause heatstroke and other problems. If fans are installed in the external environment of high temperature, they can achieve air flow, which can help people dissipate heat and cool down, reducing the occurrence of heatstroke. However, the existing external fans are generally small axial flow fans, and their effect is limited.

[0004] Therefore, a taller pole can be fixed outdoors, and a fan-like structure similar to an industrial ceiling fan can be fixed to the top of the pole to increase the outdoor air volume and improve the performance. However, the existing poles are all vertical and have a fixed height. This makes it difficult to disassemble the fan unit at the top when it is not in use, which affects the use. Utility Model Content:

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a telescopic support device for a large outdoor fan. It can be installed outdoors for use, and it can raise the fan body to improve outdoor airflow. When not in use, it can be lowered for easy disassembly and external protection by covering it with a protective cover.

[0006] The solution of this utility model to the aforementioned technical problem is:

[0007] A telescopic support device for a large outdoor fan includes a fixed base. A main support sleeve is fixed to the center of the top surface of the fixed base, and a vertical support shaft is movably connected to it via a bearing. An adjusting screw sleeve is movably connected to the vertical support shaft via a bearing. The vertical support shaft is located in the adjusting screw sleeve. An external thread is formed on the outer wall of the adjusting screw sleeve. The upper part of the adjusting screw sleeve is inserted into the vertical through hole in the middle of the vertical lifting rod. Its external thread is screwed onto the internal thread formed on the inner wall of the vertical through hole in the middle of the vertical lifting rod. The vertical lifting rod is inserted into the main support sleeve, and the top of the vertical lifting rod extends out of the top of the main support sleeve and is fixed to the fan body.

[0008] Multiple vertical guide protrusions are formed on the lower outer wall of the vertical lifting rod, and the vertical guide protrusions are inserted into the vertical guide grooves formed on the inner wall of the main support sleeve.

[0009] The top of the vertical guide groove faces the top surface of the corresponding vertical guide protrusion. The top of the main support sleeve is fixed with an upper cover. An elastic sealing sleeve is fixed on the inner wall of the upper cover. The vertical lifting rod is inserted into the elastic sealing sleeve, and the inner wall of the elastic sealing sleeve is in close contact with the outer wall of the vertical lifting rod.

[0010] A transmission gear is fixed on the bottom outer wall of the adjusting screw sleeve.

[0011] A through groove is formed on the bottom side wall of the main support sleeve near the motor base. An intermediate transmission gear is movably connected to the fixed base between the motor base and the main support sleeve via a hinge shaft. One side of the intermediate transmission gear passes through the through groove and meshes with the transmission gear. An adjusting motor is fixed on the top surface of the top plate of the motor base. The bottom end of the output shaft of the adjusting motor extends out of the bottom surface of the top plate of the motor base and is fixed with an adjusting gear. The adjusting gear meshes with the intermediate transmission gear.

[0012] A protective shell is fixed on the lower outer wall of one side of the main support sleeve, and the adjusting motor and motor base are located in the protective shell.

[0013] Elastic limiting blocks are fixed to the upper and middle parts of the outer side wall of the main support sleeve. Through holes for wires are formed on the elastic limiting blocks. An upper through hole for wires is formed on the top plate of the protective shell. A control host is fixed on the inner side wall of the side plate of the protective shell. The electrical connection wire of the fan body is inserted into the corresponding through hole and the upper through hole. Its bottom end extends into the protective shell and is electrically connected to the control host. The regulating motor is electrically connected to the control host through the electrical connection wire.

[0014] A rubber liquid guiding groove is fixed to the bottom surface of the top plate of the protective shell directly below the upper through hole. A liquid guiding groove is formed in the middle of the top surface of the bottom plate of the rubber liquid guiding groove. The bottom surface of the liquid guiding groove is an inclined wall, with its outer end lower than its inner end. The outer end face of the rubber liquid guiding groove is fixed to the inner side wall of the side plate of the protective shell. The outer end of the liquid guiding groove communicates with and corresponds to the liquid outlet through hole formed on the side plate of the protective shell. The upper through hole faces the liquid guiding groove. A liquid guiding plate is fixed to the outer side wall of the side plate of the protective shell at the liquid outlet through hole. The top surface of the liquid guiding plate is an inclined wall with its inner end higher than its outer end. It is located on the outer side wall of the side plate of the protective shell below the liquid outlet through hole.

[0015] An upper elastic sealing sleeve is fixed to the top surface of the top plate of the protective housing at the upper through hole, and the electrical connection wire of the fan body is clipped on the inner side wall of the upper elastic sealing sleeve.

[0016] The control button of the control unit faces the through hole formed on the side plate of the protective housing, which is located below the liquid guide plate.

[0017] The bottom of the side plate of the protective shell and the bottom of the side plate of the main support sleeve are both formed with bottom through holes.

[0018] The outstanding effect of this utility model is:

[0019] Compared with existing technologies, it can be installed outdoors, and the fan body can be raised to improve outdoor airflow. When not in use, it can be lowered for easy disassembly and external protection by covering it with a protective cover. Attached image description:

[0020] Figure 1 This is a partial structural schematic diagram of the present invention;

[0021] Figure 2 This is a partial enlarged view of the present invention;

[0022] Figure 3 This is a partial enlarged view of another part of this utility model. Detailed implementation method:

[0023] For example, see below. Figures 1 to 3 As shown, a telescopic support device for a large outdoor fan includes a fixed base 10. A main support sleeve 20 is fixed to the center of the top surface of the fixed base 10, and a vertical support shaft 30 is movably connected to it via a bearing. An adjusting screw sleeve 40 is movably connected to the vertical support shaft 30 via a bearing. The vertical support shaft 30 is located in the adjusting screw sleeve 40. An external thread is formed on the outer wall of the adjusting screw sleeve 40. The upper part of the adjusting screw sleeve 40 is inserted into the vertical through hole in the middle of the vertical lifting rod 50. Its external thread is screwed onto the internal thread formed on the inner wall of the vertical through hole in the middle of the vertical lifting rod 50. The vertical lifting rod 50 is inserted into the main support sleeve 20. The top of the vertical lifting rod 50 extends out of the top of the main support sleeve 20 and is fixed to the fan body 60.

[0024] The fan body 60 in this embodiment adopts the same structure as the main unit of an industrial ceiling fan. The bottom connecting plate of the bottom outer shell of the fan body 60 is fixedly connected to the top plate of the vertical lifting rod 50 by bolts. The fan impeller is fixed on the output shaft of the geared motor of the fan body 60.

[0025] Multiple vertical guide protrusions 51 are formed on the lower outer side wall of the vertical lifting rod 50, and the vertical guide protrusions 51 are inserted into the vertical guide groove formed on the inner side wall of the main support sleeve 20.

[0026] A motor base 11 is fixed on the top surface of the fixed base 10, and an adjusting motor 12 is fixed on the motor base 11. The adjusting motor 12 drives the adjusting screw sleeve 40 to rotate.

[0027] Furthermore, the top of the vertical guide groove faces the top surface of the corresponding vertical guide protrusion 51. The top of the main support sleeve 20 is fixed with an upper cover 21. An elastic sealing sleeve 22 is fixed on the inner wall of the upper cover 21. The vertical lifting rod 50 is inserted into the elastic sealing sleeve 22, and the inner wall of the elastic sealing sleeve 22 is in close contact with the outer wall of the vertical lifting rod 50.

[0028] Furthermore, the top surface of the upper cover 21 and the top surface of the elastic sealing sleeve 22 are conical walls with a smaller upper diameter and a larger lower diameter. The top surface of the upper cover 21 and the top surface of the elastic sealing sleeve 22 are on the same conical wall. This structure can ensure that if there is water above, it can flow outward along the conical wall, reducing the amount of water flowing into the interior from the gap between the elastic sealing sleeve 22 and the vertical lifting rod 50.

[0029] Furthermore, a transmission gear 41 and a blocking ring 42 are fixed on the bottom outer wall of the adjusting screw sleeve 40. The transmission gear 41 is located below the blocking ring 42, and the bottom end of the vertical lifting rod 50 faces the top surface of the blocking ring 42.

[0030] Furthermore, a through groove 111 is formed on the bottom side wall of the main support sleeve 20 near the motor base 11. An intermediate transmission gear 1 is movably connected to the fixed base 10 between the motor base 11 and the main support sleeve 20 via a hinge shaft. One side of the intermediate transmission gear 1 passes through the through groove 111 and meshes with the transmission gear 41. An adjusting motor 12 is fixed on the top surface of the top plate of the motor base 11. The bottom end of the output shaft of the adjusting motor 12 extends out of the bottom surface of the top plate of the motor base 11 and is fixed with an adjusting gear 13. The adjusting gear 13 meshes with the intermediate transmission gear 1.

[0031] Furthermore, a protective housing 70 is fixed on the lower outer wall of one side of the main support sleeve 20, and the adjusting motor 12 and the motor base 11 are located in the protective housing 70.

[0032] Furthermore, elastic limiting blocks 2 are fixed to the upper and middle parts of the outer side wall of the main support sleeve 20. The elastic limiting blocks 2 are formed with wire through holes. The top plate of the protective shell 70 is formed with an upper wire through hole 71. The control host is fixed to the inner side wall of the side plate of the protective shell 70. The electrical connection wire of the fan body 60 is inserted into the corresponding wire through hole and upper wire through hole 71. The elastic limiting blocks 2 restrict the electrical connection wire of the fan body 60.

[0033] The bottom end of the electrical connection wire of the fan body 60 extends into the protective housing 70 and is electrically connected to the control host. The regulating motor 12 is electrically connected to the control host through the electrical connection wire.

[0034] Furthermore, a rubber liquid guiding groove 72 is fixed to the bottom surface of the top plate of the protective housing 70 directly below the upper through hole 71. A liquid guiding groove is formed in the middle of the top surface of the bottom plate of the rubber liquid guiding groove 72. The bottom surface of the liquid guiding groove is an inclined wall, with its outer end lower and its inner end higher. The outer end face of the rubber liquid guiding groove 72 is fixed to the inner side wall of the side plate of the protective housing 70. The outer end of the liquid guiding groove communicates with and corresponds to the liquid outlet through hole formed on the side plate of the protective housing 70. The upper through hole 71 is completely facing the liquid guiding groove. A liquid guiding plate is fixed to the outer side wall of the side plate of the protective housing 70 at the liquid outlet through hole. The top surface of the liquid guiding plate is an inclined wall with its inner end higher and its outer end lower. It is located on the outer side wall of the side plate of the protective housing 70 below the liquid outlet through hole.

[0035] An upper elastic sealing sleeve 73 is fixed to the top surface of the top plate of the protective housing 70 at the upper through hole 71, and the electrical connection wire of the fan body 60 is clipped on the inner side wall of the upper elastic sealing sleeve 73.

[0036] The upper elastic sealing sleeve 73 can prevent external water from entering the protective housing 70, while the rubber liquid guiding groove 72 can ensure that if water enters the protective housing 70 through the upper wire through hole 71, it can flow out along the liquid outlet through hole formed on the side plate of the protective housing 70. The liquid guiding plate also has a liquid guiding effect.

[0037] The control button of the control host is located in a through hole formed on the side plate of the protective housing 70, which is below the liquid guide plate.

[0038] Bottom through holes are formed on the bottom of the side plate of the protective housing 70 and the bottom of the side plate of the main support sleeve 20.

[0039] The control host and other components in this embodiment are conventional components and will not be described in detail here. The electrical connection wires used in this embodiment are cables, which are corrosion-resistant and waterproof cables.

[0040] In this embodiment, the top of the vertical lifting rod 50 is at its highest point, and airflow is achieved through the operation of the fan body 60, thus generating airflow. This embodiment is not used in rainy weather or similar conditions.

[0041] When the device is not used for a long time or during heavy rain, the motor 12 is adjusted to drive the intermediate transmission gear 1 through the adjusting gear 13. The intermediate transmission gear 1 drives the transmission gear 41 to rotate, which in turn rotates the adjusting screw sleeve 40. This causes the vertical lifting rod 50 to descend until its bottom surface presses against the top surface of the blocking ring 42, thus achieving the desired descent. After that, the fan body 60 can be easily disassembled. Then, a protective cover or windproof and rainproof cover can be placed on it to protect this embodiment from corrosion and damage caused by external wind and rain.

[0042] Finally, it should be noted that the above embodiments are merely representative examples of this utility model. Obviously, this utility model is not limited to the above embodiments and can have many variations. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model should be considered to fall within the protection scope of this utility model.

Claims

1. A telescopic support device for a large outdoor fan, comprising a fixed base (10), characterized in that: The top surface of the fixed base (10) is fixed with a main support sleeve (20) and a vertical support shaft (30) connected by a bearing. An adjusting screw sleeve (40) is connected to the vertical support shaft (30) by a bearing. The vertical support shaft (30) is located in the adjusting screw sleeve (40). The outer side wall of the adjusting screw sleeve (40) is formed with an external thread. The upper part of the adjusting screw sleeve (40) is inserted into the vertical through hole in the middle of the vertical lifting rod (50). Its external thread is screwed onto the internal thread formed on the inner side wall of the vertical through hole in the middle of the vertical lifting rod (50). The vertical lifting rod (50) is inserted into the main support sleeve (20). The top of the vertical lifting rod (50) extends out of the top of the main support sleeve (20). The lower outer side wall of the vertical lifting rod (50) is formed with a plurality of vertical guide protrusions (51), which are inserted into the vertical guide groove formed on the inner side wall of the main support sleeve (20). A motor base (11) is fixed on the top surface of the fixed base (10), and an adjusting motor (12) is fixed on the motor base (11). The adjusting motor (12) drives the adjusting screw sleeve (40) to rotate.

2. The telescopic support device for a large outdoor fan according to claim 1, characterized in that: The top of the vertical guide groove faces the top surface of the corresponding vertical guide protrusion (51). The top of the main support sleeve (20) is fixed with an upper cover (21). An elastic sealing sleeve (22) is fixed on the inner wall of the upper cover (21). The vertical lifting rod (50) is inserted into the elastic sealing sleeve (22). The inner wall of the elastic sealing sleeve (22) is in close contact with the outer wall of the vertical lifting rod (50).

3. The telescopic support device for a large outdoor fan according to claim 2, characterized in that: The top surface of the upper cover (21) and the top surface of the elastic sealing sleeve (22) are conical walls with a smaller upper diameter and a larger lower diameter.

4. The telescopic support device for a large outdoor fan according to claim 1, characterized in that: A transmission gear (41) and a blocking ring (42) are fixed on the bottom outer wall of the adjusting screw sleeve (40). The transmission gear (41) is located below the blocking ring (42), and the bottom end of the vertical lifting rod (50) faces the top surface of the blocking ring (42).

5. The telescopic support device for a large outdoor fan according to claim 4, characterized in that: The main support sleeve (20) has a through groove (111) formed on the bottom side wall near the motor base (11). An intermediate transmission gear (1) is movably connected to the fixed base (10) between the motor base (11) and the main support sleeve (20) via a hinge shaft. One side of the intermediate transmission gear (1) passes through the through groove (111) and meshes with the transmission gear (41). An adjusting motor (12) is fixed on the top surface of the top plate of the motor base (11). The bottom end of the output shaft of the adjusting motor (12) extends out of the bottom surface of the top plate of the motor base (11) and is fixed with an adjusting gear (13). The adjusting gear (13) meshes with the intermediate transmission gear (1).

6. The telescopic support device for a large outdoor fan according to claim 5, characterized in that: A protective housing (70) is fixed on the lower outer wall of one side of the main support sleeve (20), and the adjusting motor (12) and motor base (11) are located in the protective housing (70).

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