Lifting mechanism for electric fan

Abstract

The utility model relates to the technical field of electric fans, in particular to a lifting mechanism for an electric fan, which comprises a base and an auxiliary mechanism, supporting columns are fixedly welded at four ends above the base, a supporting table is fixedly connected above the supporting columns, and the auxiliary mechanism is fixedly mounted at the bottom end above the supporting table. The rotating box, the bevel gear, the threaded rod, the through hole, the bearing bevel gear and the rotating handle are matched with one another, the rotating handle is manually rotated, the bevel gear arranged at the other end of the rotating box is meshed with the bearing bevel gear to drive the rotating handle to rotate, and the rotating handle rotates through rotation of the bearing bevel gear; the lifting stability is improved through a mounting plate fixedly welded to the top end of the threaded rod, and the lifting device can be conveniently fixed to different heights and is not prone to falling off through the self-locking performance between bevel gears.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric fan technical field, concretely is a kind of lifting mechanism for electric fan. BACKGROUND

[0002] Electric fan is also called fan, fan, it is a kind of household appliance using motor to drive fan blade rotation, to achieve air accelerated flow, mainly used for cooling and air circulation. It is widely used in family, classroom, office, shop, hospital and hotel, etc. The existing electric fan is inconvenient to adjust and fix at different heights while improving the stability of lifting.

[0003] As disclosed in the application publication no. CN101725553A discloses an electric fan, including fan blade, fan body support and motor, characterized in that the motor includes main magnetic pole electromagnet. Since the above technical solution is adopted, the electric fan can avoid the problem that the existing electric fan cannot work normally due to the demagnetization of permanent magnet in the motor, and has the advantages of long service life and good durability. However, it does not solve the problem of convenient adjustment and fixing at different heights while improving the stability of lifting. SUMMARY

[0004] The utility model aims at providing a kind of lifting mechanism for electric fan, to solve the problem raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of lifting mechanism for electric fan, including base and auxiliary mechanism, the upper four ends of the base are fixedly welded with support column, the upper fixed connection of the support column is provided with support table, the upper bottom end of the support table is fixedly installed with auxiliary mechanism;

[0007] The auxiliary mechanism includes rotating box, bevel gear and threaded rod, the upper central of the support table is provided with through hole, the inside of the through hole is movably provided with threaded rod, the bottom of the through hole is fixedly provided with bearing bevel gear, the upper of the bearing bevel gear is meshed with bevel gear, the other end of the bevel gear is installed with rotating box, the inside of the rotating box is through and extends with rotating handle.

[0008] Preferably, the top end of the threaded rod is fixedly welded with mounting plate, the four central ends of the mounting plate are fixedly installed with bearing one, the upper of the bearing one is movably provided with cross plate.

[0009] Preferably, the top end of the cross plate is installed with bearing two at both ends of the connection, and the bottom end of the cross plate is installed with bearing three at both ends of the connection.

[0010] Preferably, the other end of the bearing two is provided with a connecting rod one, and the other end of the bearing three is provided with a connecting rod two.

[0011] Preferably, the other end of the connecting rod one is provided with a bearing four, the other end of the connecting rod two is provided with a bearing five, the upper side of the bearing four is fixedly provided with a top plate, and the bearing five is arranged on the outer side of the central support table.

[0012] Preferably, the upper surface of the top plate is provided with a groove, the symmetrical two sides of the groove are provided with a mounting groove, and the mounting groove is internally provided with an electric push rod.

[0013] Compared with the prior art, the electric fan lifting mechanism has the advantages that:

[0014] The electric fan lifting mechanism is characterized in that the rotating box, the bevel gear, the threaded rod, the through hole, the bearing bevel gear and the rotating handle are matched with each other, the threaded rod movably arranged above is lifted up and down by rotating the handle, the mounting plate fixedly welded to the top end of the threaded rod is used to improve the stability of lifting, and the self-locking of the bevel gears is used to facilitate fixing at different heights and prevent falling. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model;

[0016] Figure 2 It is a front view structure schematic view of the utility model;

[0017] Figure 3 It is a whole structure schematic view of the support table part of the utility model;

[0018] Figure 4 It is a whole structure schematic view of the auxiliary mechanism part of the utility model.

[0019] In the figure: 1, base; 2, auxiliary mechanism; 201, rotating box; 202, bevel gear; 203, threaded rod; 204, through hole; 205, bearing bevel gear; 206, rotating handle; 3, support column; 4, support table; 5, mounting plate; 6, bearing one; 7, cross plate; 8, bearing two; 9, bearing three; 10, connecting rod one; 11, connecting rod two; 12, bearing four; 13, bearing five; 14, top plate; 15, groove; 16, electric push rod. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Please refer to Figures 1-4 The utility model provides a technical scheme:

[0022] A lifting mechanism for electric fan, including base 1 and auxiliary mechanism 2, the upper four ends of base 1 are fixedly welded and arranged with support column 3, the upper of support column 3 is fixedly connected and arranged with support table 4, the upper bottom end of support table 4 is fixedly installed and arranged with auxiliary mechanism 2;

[0023] Auxiliary mechanism 2 includes rotating box 201, bevel gear 202 and threaded rod 203, the upper center of support table 4 is provided with through hole 204, threaded rod 203 is movably arranged in through hole 204, bearing bevel gear 205 is fixedly arranged at the bottom end of through hole 204, bevel gear 202 is meshed and arranged above bearing bevel gear 205, rotating box 201 is installed and arranged at the other end of bevel gear 202, rotating handle 206 is arranged through and extends in rotating box 201, by manually rotating rotating handle, bevel gear 202 meshed bearing bevel gear 205 is driven to rotate by rotating box 201 installed at the other end, by bearing bevel gear 205 transmission, so that the threaded rod 203 movably arranged above is up and down.

[0024] In the embodiment, preferably, the top end of threaded rod 203 is fixedly welded and arranged with mounting plate 5, bearing one 6 is fixedly installed and arranged at the center of four ends of mounting plate 5, cross plate 7 is movably arranged above bearing one 6, cross plate 7 is connected by bearing one 6, so as to realize the purpose of convenient movement.

[0025] In this embodiment, preferably, the top end of the cross plate 7 is connected to the bearing 8, the bottom end of the cross plate 7 is connected to the bearing 9, and the upper and lower ends of the cross plate 7 are provided with bearings, thereby prolonging the length and improving the lifting height.

[0026] In this embodiment, preferably, the other end of the bearing 8 is connected to the connecting rod 10, the other end of the bearing 9 is connected to the connecting rod 11, and the upper and lower ends are connected by the connecting rod 10 and the connecting rod 11, thereby improving stability.

[0027] In this embodiment, preferably, the other end of the connecting rod 10 is connected to the bearing 12, the other end of the connecting rod 11 is connected to the bearing 13, the top of the bearing 12 is fixedly installed with the top plate 14, the bearing 13 is installed on the outer side of the central support platform 4, and the four outer sides of the top plate 14 are installed with the above structure, thereby lifting more stably by installing the above structure on the four ends of the top end.

[0028] In this embodiment, preferably, the upper surface of the top plate 14 is provided with a groove 15, the symmetrical sides of the groove 15 are provided with a groove 15, and the inside of the groove 15 is provided with an electric push rod 16, thereby preventing the electric fan from falling unstably during lifting by placing the base 1 of the electric fan inside the groove 15, and the electric push rod 16 is symmetrically arranged on both sides of the groove 15, and the electric push rod 16 pushes the push plate, thereby fixing the internal electric fan.

[0029] In use, the lifting mechanism for electric fan of the present embodiment is provided with a rotating box 201, a bevel gear 202, a threaded rod 203, a through hole 204, a bearing bevel gear 205 and a rotating handle 206, which are matched with each other, the threaded rod 203 is lifted up and down by rotating the handle, the bevel gear 202 at the other end of the rotating box 201 is engaged with the bearing bevel gear 205 to drive rotation, the bearing bevel gear 205 is self-transmitted, thereby making the threaded rod 203 movably arranged above, the mounting plate 5 is fixedly welded at the top end of the threaded rod 203, thereby improving the stability of lifting, the bevel gear 202 is self-locked, thereby being convenient to fix at different heights and not easy to fall, the groove 15 is provided on the top plate 14, the base 1 of the electric fan is placed inside, the electric push rod 16 is symmetrically arranged on both sides of the groove 15, the electric push rod 16 pushes the push plate, thereby fixing the internal electric fan, thereby preventing the electric fan from falling unstably during lifting.

[0030] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A lifting mechanism for an electric fan, comprising a base (1) and an auxiliary mechanism (2), characterized in that: The base (1) has four fixed welded support columns (3) on its upper part, and a support platform (4) is fixedly connected above the support columns (3). An auxiliary mechanism (2) is fixedly installed at the bottom of the support platform (4). The auxiliary mechanism (2) includes a rotating box (201), a bevel gear (202), and a threaded rod (203). A through hole (204) is provided in the center of the upper part of the support platform (4). The threaded rod (203) is movably arranged inside the through hole (204). A bearing bevel gear (205) is fixedly arranged at the bottom end of the through hole (204). A bevel gear (202) is meshed above the bearing bevel gear (205). The rotating box (201) is installed at the other end of the bevel gear (202). A rotating handle (206) is extended through the interior of the rotating box (201).

2. The lifting mechanism for an electric fan according to claim 1, characterized in that: The top end of the threaded rod (203) is fixedly welded with a mounting plate (5), and a bearing (6) is fixedly installed at the center of each of the four ends of the mounting plate (5). A cross plate (7) is movably installed above the bearing (6).

3. The lifting mechanism for an electric fan according to claim 2, characterized in that: Bearing 2 (8) is installed at both ends of the top end of the cross plate (7), and bearing 3 (9) is installed at both ends of the bottom end of the cross plate (7).

4. A lifting mechanism for an electric fan according to claim 3, characterized in that: The other end of each of the bearings 2 (8) is provided with a connecting rod 1 (10), and the other end of each of the bearings 3 (9) is provided with a connecting rod 2 (11).

5. A lifting mechanism for an electric fan according to claim 4, characterized in that: The other end of the connecting rod 1 (10) is connected to a bearing 4 (12), the other end of the connecting rod 2 (11) is connected to a bearing 5 (13), a top plate (14) is fixedly installed above the bearing 4 (12), the bearing 5 (13) is installed on the outer side of the center of the support platform (4), and the above structure is installed on the outer side of all four ends of the top plate (14).

6. A lifting mechanism for an electric fan according to claim 5, characterized in that: The top plate (14) has a groove (15) on its upper surface, and mounting slots are provided on both sides of the groove (15). An electric push rod (16) is installed inside the mounting slot.

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