A tower fan

Abstract

The present invention provides a tower fan, which is provided with a base fixing plate, the base fixing plate is connected to the base, a connecting piece is connected between the base fixing plate and the base, the connecting piece is provided inside the bracket fixing plate, when the bracket fixing plate is relatively tilted relative to the base, the bracket fixing plate will touch the connecting piece, at which time the connecting piece will prevent the bracket fixing plate from further tilting movement, thereby effectively avoiding further tilting movement. In the present invention, the base fixing plate and the bracket fixing plate are arranged at a certain distance in the height direction, and such an arrangement can avoid excessive friction between the base fixing plate and the bracket fixing plate, which affects the normal rotation of the bracket fixing plate.

Description

Technical Field

[0001] The invention relates to the technical field of tower fans, and in particular to a tower fan with good stability. Background Art

[0002] Tower fans are also called convection fans. Based on the principle of airflow, tower fans form a three-dimensional exchange system between indoor and outdoor air. In the prior art, when users move tower fans, the upper part of the tower fan often tilts or shakes, affecting the stability of the whole machine and user experience. Summary of the invention

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the tower fan in the prior art is prone to shaking or tilting during movement.

[0004] To this end, the present invention provides a tower fan, comprising: a base, on which a driven gear is arranged; a friction ring arranged above the base, the friction ring is provided with a steel ball seat, and the steel ball seat is provided with a steel ball hole; a bracket fixing pressure plate, rotatably arranged above the steel ball seat; a base fixing pressure plate, connected to the base and arranged above the bracket fixing pressure plate, the base fixing pressure plate and the bracket fixing pressure plate are arranged at a certain distance in the height direction; a bracket, mounted on the bracket fixing pressure plate and driven by the bracket, the bracket is provided with a driving motor, and the driving motor drives the driven gear to make the bracket rotate relative to the base.

[0005] In the present invention, a bracket fixing platen limiting groove is provided on the bracket fixing platen, and a bracket limiting rib is provided at a position on the bracket corresponding to the bracket fixing platen limiting groove, and the bracket limiting rib is suitable for being embedded in the bracket fixing platen limiting groove to limit the circumferential movement of the bracket. At the same time, a base fixing limiting groove is provided above the base, and a friction ring limiting rib suitable for being embedded in the base fixing limiting groove is provided on the friction ring. A friction ring limiting groove is provided on the friction ring, and a steel ball seat limiting rib extending toward the friction ring limiting groove is provided on the steel ball seat, and the steel ball seat limiting rib is suitable for being embedded in the friction ring limiting groove.

[0006] In the present invention, the driven gear itself does not rotate, and a motor positioning structure for placing the driving motor is provided on the bracket, and the axis of the output shaft of the driving motor and the axis of the driven gear are arranged parallel to each other. A driving gear is provided on the driving motor, and after the driving gear rotates, the bracket rotates relative to the base through cooperation with the driven gear.

[0007] In the present invention, a base plate fixing hole is provided on the base fixing plate, a screw column is provided on the base plate fixing hole, and the first connecting member passes through the screw column and is connected to the base.

[0008] The base is provided with a base screw column, and one end of the first connecting member is connected to the base screw column.

[0009] In the present invention, a plurality of base plate limiting ribs extending toward the base are arranged on the bottom surface of the base fixing plate, and the base plate limiting ribs extend deep into the position below the inner circle of the bracket fixing plate. The central angle between two adjacent base plate limiting ribs is 90 degrees. At the same time, the base plate limiting ribs are located outside the base plate fixing hole.

[0010] In the present invention, the limiting ribs of the base pressure plate are spaced apart from the inner circle of the bracket fixing pressure plate.

[0011] In the present invention, a plurality of bracket plate fixing holes extending outward are arranged on the outer diameter of the bracket fixing plate, and the bracket plate fixing holes of the second connecting member are installed on the bracket. A bracket screw column is arranged at a position on the bracket corresponding to the bracket plate fixing hole, and the second connecting member is connected to the bracket screw column through the bracket plate fixing hole.

[0012] The technical solution of the present invention has the following advantages:

[0013] 1. The tower fan provided by the present invention comprises: a base, on which a driven gear is arranged; a friction ring arranged above the base, a steel ball seat is arranged on the friction ring, and a steel ball hole is arranged on the steel ball seat; a bracket fixing pressure plate, which is rotatably arranged above the steel ball seat; a base fixing pressure plate, which is connected to the base and arranged at a position above the bracket fixing pressure plate, a connecting piece is connected between the base fixing pressure plate and the base, and the connecting piece is arranged on the inner side of the bracket fixing pressure plate; a bracket, which is installed on the bracket fixing pressure plate and driven by the bracket, and a driving motor is arranged on the bracket, and the driving motor drives the driven gear to make the bracket rotate relative to the base.

[0014] The technicians analyzed the structure of the tower fan in the prior art and found that when the tower fan is tilted by an external force, it is mainly because the bracket fixing pressure plate tilts relative to the base.

[0015] Therefore, in the present invention, a base fixing pressure plate is provided, and the base fixing pressure plate is connected to the base, so that a limiting axial force can be increased around the bracket. A connecting piece is connected between the base fixing pressure plate and the base, and the connecting piece is provided on the inner side of the bracket fixing pressure plate. When the bracket fixing pressure plate is relatively tilted relative to the base, the bracket fixing pressure plate will touch the connecting piece. At this time, the connecting piece will prevent the bracket fixing pressure plate from further tilting movement, thereby effectively avoiding further occurrence of tilting action.

[0016] In the present invention, the base fixing platen and the bracket fixing platen are arranged at a certain distance in the height direction. Such an arrangement can avoid excessive friction between the base fixing platen and the bracket fixing platen, which affects the normal rotation of the bracket fixing platen.

[0017] 2. In the tower fan provided by the present invention, a base pressure plate fixing hole is provided on the base fixing pressure plate, and the connecting member is connected to the base through the base pressure plate fixing hole.

[0018] By setting the base pressure plate fixing hole, when the bottom of the connecting piece is connected to the base, the relative height of the base fixing pressure plate relative to the bracket fixing pressure plate can be adjusted by adjusting the height of the connecting piece in the base fixing hole, thereby avoiding friction between the base fixing pressure plate and the bracket fixing pressure plate.

[0019] 3. In the tower fan provided by the present invention, a screw column is provided on the fixing hole of the base pressure plate, and the connecting member passes through the screw column and is connected to the base.

[0020] By setting a screw column, the connecting part can be directly clamped in the screw column. By adjusting the position of the screw column on the base pressure plate fixing hole, the base fixing pressure plate can be driven to move relative to the base in the height direction, thereby avoiding friction between the base fixing pressure plate and the bracket fixing pressure plate.

[0021] 4. The tower fan provided by the present invention has a plurality of base plate limiting ribs extending toward the base, which are arranged on the bottom surface of the base fixing plate. The base plate limiting ribs extend into a position below the inner circle of the bracket fixing plate.

[0022] The base pressure plate limiting ribs extend deep into the position below the inner circle. When the bracket fixing pressure plate tilts, the bracket fixing pressure plate will touch the base pressure plate limiting ribs. At this time, the base pressure plate limiting ribs will block the further movement of the bracket fixing pressure plate, thereby avoiding subsequent tilting movement.

[0023] 5. In the tower fan provided by the present invention, the base plate limiting ribs are arranged outside the base plate fixing hole 201. When the bracket fixing plate tilts, the bracket fixing plate first contacts the base plate limiting ribs, and the base fixing plate can be easily assembled.

[0024] 6. In the tower fan provided by the present invention, the base plate limiting ribs and the inner circle of the bracket fixing plate are spaced apart. By setting the space, friction between the base plate limiting ribs and the bracket fixing plate can be avoided, thereby improving the rotation stability of the bracket fixing plate.

[0025] 7. In the tower fan provided by the present invention, a plurality of bracket pressure plate fixing holes extending outward are arranged on the outer diameter of the bracket fixing pressure plate, and the second connecting member is installed on the bracket through the bracket pressure plate fixing holes.

[0026] Through the cooperation between the bracket pressure plate fixing hole and the second connecting member, the bracket fixing pressure plate can be connected to the bracket, thereby connecting the bracket and the bracket fixing pressure plate as a whole.

[0027] At the same time, since the base fixing pressure plate is arranged above the bracket fixing pressure plate, the base fixing pressure plate can further limit the inclination of the bracket by limiting the bracket fixing pressure plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 An exploded view of the tower fan provided by the present invention;

[0030] Figure 2 for Figure 1 A schematic diagram of the structure of the bracket shown;

[0031] Figure 3 for Figure 1 A schematic diagram of the structure of the base fixing pressure plate provided in;

[0032] Figure 4 for Figure 1 The assembly diagram between the driving motor and the driven gear provided in;

[0033] Figure 5 The present invention is a schematic structural diagram of a tower fan provided by the present invention.

[0034] Description of reference numerals:

[0035] 1-bracket; 101-bracket screw column; 102-bracket limiting rib; 103-motor positioning structure; 2-base fixing plate; 201-base plate fixing hole; 202-base plate limiting rib; 3-bracket fixing plate; 301-bracket plate fixing hole; 302-bracket fixing plate limiting groove; 4-steel ball seat; 401-steel ball hole; 402-steel ball seat limiting rib; 5-friction ring; 501-friction ring limiting rib; 502-friction ring limiting groove; 6-base; 601-base screw column; 602-base fixing limiting groove; 603-base fixing driven gear positioning column; 7-driven gear; 8-first connecting piece; 9-second connecting piece; 10-driving motor; 11-driving gear. DETAILED DESCRIPTION

[0036] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0040] Example

[0041] This embodiment provides a tower fan, such as Figure 1As shown, it includes: a base 6 at the bottom, on which a driven gear 7 is arranged, and a drive motor is arranged on the bracket 1, and the drive motor drives the driven gear 7 to make the bracket 1 rotate relative to the base 6. In this embodiment, Figure 4 As shown, the driven gear 7 itself does not rotate, and a driving gear 11 is provided on the driving motor. The driving gear rotates on the driven gear 7, thereby realizing the rotation of the bracket 1 relative to the base 6.

[0042] like Figure 1 and Figure 2 As shown, a motor positioning structure 103 for placing the driving motor 10 is provided on the bracket 1, and a base fixing driven gear positioning column 603 is provided on the base 6, on which a driven gear 7 is provided, and the axis of the output shaft of the driving motor and the axis of the driven gear 7 are arranged parallel to each other. This arrangement makes the axes of the driving gear 11 and the driven gear 7 parallel to each other, thereby ensuring the stability of the driving motor transmission.

[0043] In this embodiment, a friction ring 5 is arranged above the base 6, and a steel ball seat 4 is arranged on the friction ring 5. A steel ball hole 401 is arranged on the steel ball seat 4, and a steel ball is prevented from being placed in the steel ball hole. The bracket fixing pressure plate 3 is rotatably arranged above the steel ball seat 4, and the bracket 1 is installed on the bracket fixing pressure plate 3 and driven by the bracket 1. When the bracket fixing pressure plate 3 rotates, the steel ball located thereunder starts to reduce the friction force.

[0044] In this embodiment, Figure 1 As shown, the base fixing platen 2 is arranged above the bracket fixing platen 3, and a first connecting member 8 is connected between the base fixing platen 2 and the base 6. The first connecting member is arranged on the inner side of the bracket fixing platen 3, and the base fixing platen 2 and the bracket fixing platen 3 are arranged at a certain distance in the height direction.

[0045] In this embodiment, a base fixing pressure plate is provided, and the base fixing pressure plate is connected to the base. A connecting piece is connected between the base fixing pressure plate and the base, and the connecting piece is provided on the inner side of the bracket fixing pressure plate. When the bracket fixing pressure plate is tilted relative to the base, the bracket fixing pressure plate will touch the connecting piece. At this time, the connecting piece will prevent the bracket fixing pressure plate from further tilting movement, thereby effectively avoiding further tilting action.

[0046] In this embodiment, a base plate fixing hole 201 is provided on the base fixing plate 2, and the first connecting member 8 is connected to the base 6 through the base plate fixing hole 201. By providing the base plate fixing hole, when the bottom of the connecting member is connected to the base, the relative height of the base fixing plate relative to the bracket fixing plate can be adjusted by adjusting the height of the connecting member in the base fixing hole, thereby preventing the base fixing plate from rubbing against the bracket fixing plate.

[0047] Specifically, a thread is provided on the base plate fixing hole 201, and the connecting piece can move relative to the base plate fixing hole 2 through threaded engagement. As a variation, the outer diameter of the connecting piece can be selected to be larger than the inner diameter of the base plate fixing hole 201. In this case, the connecting piece is tensioned and arranged on the base plate fixing hole 201, and the friction between the two can achieve relative stability between the connecting piece and the base plate fixing hole 201.

[0048] In this embodiment, a screw column is provided on the base plate fixing hole 201, and the first connecting member is connected to the base 6 through the screw column. By providing the screw column, it is possible to avoid the base plate fixing hole 201 being damaged when the connecting member is directly connected to the base plate fixing hole 201, thereby causing damage to the entire base fixing plate 2. At the same time, by adjusting the relative position of the screw column on the base fixing plate 2, the base fixing plate can be driven to move relative to the base in the height direction, thereby avoiding the base fixing plate from rubbing against the bracket fixing plate.

[0049] In this embodiment, in order to realize the connection action of the connecting member, a base screw column 601 is provided on the base 6, and an internal thread is provided on the base screw column 601, such as Figure 5 As shown, the lower end of the first connecting member 8 can be connected to the base screw column 601 by threading.

[0050] In this embodiment, Figure 3 As shown, a plurality of base plate limiting ribs 202 extending toward the base 6 are arranged on the bottom surface of the base fixing plate 2 , and the base plate limiting ribs 202 extend into a position below the inner circle of the bracket fixing plate 3 .

[0051] Specifically, the base plate limiting rib 202 is arranged in an arc shape, and its curvature is consistent with the curvature of the base fixed plate 2. Figure 3 As shown, the number of the base plate limiting ribs 202 is four, and the central angle between two adjacent base plate limiting ribs 202 is 90 degrees. As a variation, the number of the base plate limiting ribs 202 can be adjusted according to actual working conditions, and the shape of the base plate limiting ribs 202 can also be adjusted, such as using a plate-like structure.

[0052] In this embodiment, the base plate limiting rib 202 is arranged outside the base plate fixing hole 201. Through the above positional relationship, when the bracket fixing plate 3 is tilted, the bracket fixing plate 3 can first contact with the base plate limiting rib 202, and the contact surface of the base plate limiting rib 202 and the contact surface of the connecting member are larger, so the bracket fixing plate 3 can be better prevented from tilting.

[0053] In this embodiment, Figure 1 As shown, the base fixing platen 2 and the bracket fixing platen 3 are both arranged in a ring shape, and the outer edge of the base fixing platen 2 is larger than the inner edge of the bracket fixing platen 3, so that the base fixing platen 2 will not fall out relative to the bracket fixing platen 3.

[0054] In this embodiment, a spacing is set between the base plate limiting rib 202 and the inner circle of the bracket fixing plate 3. By setting the spacing, friction between the base plate limiting rib and the bracket fixing plate can be avoided, thereby improving the rotation stability of the bracket fixing plate. The size of the spacing is adjusted according to actual needs, as long as it can block the bracket fixing plate 3 when it tilts, and is not too limited in this embodiment.

[0055] In this embodiment, in order to realize the connection between the bracket fixing plate 3 and the bracket 1, a plurality of bracket fixing plate fixing holes 301 extending outward are provided on the outer diameter of the bracket fixing plate 3, and the second connecting member 9 is installed on the bracket 1 through the bracket fixing plate fixing holes 301. At the same time, a bracket screw column 101 is provided at a portion of the bracket 1 corresponding to the bracket fixing hole 301, and the second connecting member 9 is connected to the bracket screw column 101 through the bracket fixing hole 301.

[0056] Specifically, the second connecting member 9 itself is a screw, which is connected to the bracket screw column 101 through threads.

[0057] At the same time, if Figure 1 and Figure 2 As shown, a bracket fixing plate limiting groove 302 is provided on the bracket fixing plate 3, and a bracket limiting rib 102 is provided at a position on the bracket 1 corresponding to the bracket fixing plate limiting groove 302, and the bracket limiting rib 102 is suitable for being embedded in the bracket fixing plate limiting groove 302 to limit the circumferential movement of the bracket 1. Figure 1 As shown, there are two bracket fixing plate limiting grooves 302 and the two are arranged opposite to each other.

[0058] like Figure 1As shown, a base fixing limit groove 602 is provided above the base 6, and a friction ring limit rib 501 suitable for being embedded in the base fixing limit groove 602 is provided on the friction ring 5. After the assembly action is completed, the friction ring limit rib 501 can be prevented from circumferentially moving relative to the base fixing limit groove 602 through the cooperation between the friction ring limit rib 501 and the base fixing limit groove 602.

[0059] At the same time, if Figure 1 As shown, the friction ring 5 is provided with two friction ring limiting grooves 502 arranged opposite to each other, and the steel ball seat 4 is provided with a steel ball seat limiting rib 402 extending toward the friction ring limiting groove 502, and the steel ball seat limiting rib 402 is suitable for being embedded in the friction ring limiting groove 502. Specifically, the steel ball seat limiting rib 402 itself has a certain length, and when the steel ball seat limiting rib 402 is embedded in the friction ring limiting groove 502, the two are in a clamped state.

[0060] In this embodiment, Figure 5 As shown, the bracket 1 and the bracket fixing plate 3 form a bracket assembly through the first connecting member 8, and the bracket fixing plate 3, the steel ball seat 4, the friction ring 5, the base 6 and the second connecting member 9 form a ball assembly. The ball assembly itself remains relatively stationary, and the bracket assembly rotates relative to the ball assembly.

[0061] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A tower fan, characterized in that: include: A base (6) on which a driven gear (7) is disposed; A friction ring (5) is arranged above the base (6), a steel ball seat (4) is arranged on the friction ring (5), and a steel ball hole (401) is arranged on the steel ball seat (4); A bracket fixing pressure plate (3) is rotatably arranged above the steel ball seat (4); The base fixing plate (2) is arranged above the bracket fixing plate (3), a first connecting member is connected between the base fixing plate (2) and the base (6), the first connecting member is arranged inside the bracket fixing plate (3), and the base fixing plate (2) and the bracket fixing plate (3) are arranged at a certain distance in the height direction; A bracket (1) is mounted on the bracket fixing plate (3) and driven by the bracket (1); a driving motor (10) is provided on the bracket (1); the driving motor (10) drives the driven gear (7) so that the bracket (1) rotates relative to the base (6); The base fixing plate (2) is provided with a base pressing plate fixing hole (201), and the first connecting member (8) is connected to the base (6) through the base pressing plate fixing hole (201); The bracket (1) is provided with a motor positioning structure (103) for placing the driving motor (10), and the base (6) is provided with a base fixing driven gear positioning column (603), on which a driven gear (7) is provided, and the axis of the output shaft of the driving motor and the axis of the driven gear (7) are arranged parallel to each other.

2. The tower fan according to claim 1, characterized in that: The base pressure plate fixing hole (201) is provided with a screw column, and the first connecting member passes through the screw column and is connected to the base (6).

3. The tower fan according to claim 2, characterized in that: The base (6) is provided with a base screw column (601), and one end of the first connecting member is connected to the base screw column (601).

4. The tower fan according to claim 1 or 2, characterized in that: A plurality of base pressure plate limiting ribs (202) extending toward the base (6) are arranged on the bottom surface of the base fixing pressure plate (2), and the base pressure plate limiting ribs (202) extend into a position below the inner circle of the bracket fixing pressure plate (3).

5. The tower fan according to claim 4, characterized in that: The central angle between two adjacent base pressure plate limiting ribs (202) is 90 degrees.

6. The tower fan according to claim 5, characterized in that: The base pressing plate limiting rib (202) is arranged outside the base pressing plate fixing hole (201).

7. The tower fan according to claim 4, characterized in that: The base pressure plate limiting rib (202) is arranged at intervals between the inner circle of the bracket fixing pressure plate (3).

8. The tower fan according to any one of claims 1-2, characterized in that: A plurality of bracket pressure plate fixing holes (301) extending outward are arranged on the outer diameter of the bracket fixing pressure plate (3), and the second connecting member is installed on the bracket (1) through the bracket pressure plate fixing holes (301).

9. The tower fan according to claim 8, characterized in that: A bracket screw column (101) is provided at a position on the bracket (1) corresponding to the bracket pressure plate fixing hole (301), and a second connecting member is connected to the bracket screw column (101) through the bracket pressure plate fixing hole (301).

10. The tower fan according to any one of claims 1-2, characterized in that: The bracket fixing pressure plate (3) is provided with a bracket fixing pressure plate limiting groove (302), and a bracket limiting rib (102) is provided at a position on the bracket (1) corresponding to the bracket fixing pressure plate limiting groove (302), and the bracket limiting rib (102) is suitable for being embedded in the bracket fixing pressure plate limiting groove (302) to limit the circumferential movement of the bracket (1).

11. The tower fan according to claim 1, characterized in that: A base fixing limit groove (602) is provided above the base (6), and a friction ring limit rib (501) suitable for being embedded in the base fixing limit groove (602) is provided on the friction ring (5).

12. The tower fan according to claim 11, characterized in that: The friction ring (5) is provided with a friction ring limiting groove (502), and the steel ball seat (4) is provided with a steel ball seat limiting rib (402) extending in the direction of the friction ring limiting groove (502), and the steel ball seat limiting rib (402) is suitable for being embedded in the friction ring limiting groove (502).

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