Chassis device based on limiting of limiting balls and fan

Abstract

The utility model discloses a base plate device and a fan based on limiting of a limiting ball, and relates to the technical field of base plate assembly, the base plate device comprises a standing pipe, a connecting end, a base plate, a base plate and a base plate, the weighting block is provided with a first through hole; the panel is provided with a second through hole, the panel covers the weighting block, and the second through hole is aligned with the first through hole; the fixed seat assembly comprises an inner pipe, an outer pipe and a limiting ball; a limiting hole is formed in the inner pipe, a protruding block is arranged on the inner side of the outer pipe, the outer pipe can slide on the inner pipe, and the limiting ball is arranged in the limiting hole. The connecting end of the standing pipe sequentially penetrates through the second through hole and the first through hole and is inserted into the inner pipe, and the inner pipe abuts against the balancing weight. The convex block can extrude the limiting ball or be separated from the limiting ball by sliding the outer pipe; when the convex block extrudes the limiting ball, one part of the limiting ball can be embedded into the limiting groove; when the protruding block is separated from the limiting ball, the limiting ball can slide out of the limiting groove. According to the utility model, the mounting and dismounting convenience of the standing pipe and the balancing weight can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chassis assembly, in particular to a chassis device and a fan based on the limitation of a limiting ball. Background Art

[0002] Fans are commonly used household devices. To improve the stability of a fan, a weight is usually provided for the chassis of the fan.

[0003] In the prior art, a floor tube is usually fixed to a weight by a snap hook. However, after the snap connection, since the snap position is inside the weight, both the floor tube and the weight are not easily deformed, and disassembly becomes very difficult. Summary of the Utility Model

[0004] The technical problem to be solved by the embodiments of the utility model is how to improve the convenience of installation and disassembly of the floor tube and the counterweight.

[0005] To solve the above problems, in a first aspect, an embodiment of the utility model provides a chassis device based on the limitation of a limiting ball, including:

[0006] A floor tube, the floor tube is provided with a connection end, and a limiting groove is arranged on the outer surface of the connection end;

[0007] A weight, the weight is provided with a first through hole;

[0008] A panel, the panel is provided with a second through hole, the panel covers the weight, and the second through hole is aligned with the first through hole;

[0009] A fixed seat assembly, the fixed seat assembly includes an inner tube, an outer tube and a limiting ball; a limiting hole is formed in the inner tube, a convex block is arranged on the inner side of the outer tube, the outer tube can slide on the inner tube, and the limiting ball is arranged in the limiting hole;

[0010] Wherein, the connection end of the floor tube sequentially passes through the second through hole and the first through hole and is inserted into the inner tube, and the inner tube abuts against the counterweight; by sliding the outer tube, the convex block can squeeze the limiting ball or disengage from the limiting ball; when the convex block squeezes the limiting ball, a part of the limiting ball can be embedded into the limiting groove; when the convex block disengages from the limiting ball, the limiting ball can slide out of the limiting groove.

[0011] A further technical solution thereof is that the fixed seat assembly further includes an elastic member, the elastic member is arranged between the inner tube and the outer tube, and the elastic member is configured to make the outer tube slide to the position where the convex block squeezes the limiting ball.

[0012] A further technical solution thereof is that the fixed seat assembly further includes a limiting ring. An installation groove is provided at the upper end of the inner tube. The limiting ring is embedded in the installation groove, and a part of the limiting ring protrudes out of the installation groove. The part of the limiting ring protruding out of the installation groove forms a limit for the outer tube.

[0013] A further technical solution thereof is that the aperture of the limiting hole gradually decreases from the outside to the inside of the inner tube. The maximum value of the aperture of the limiting hole is greater than the diameter of the limiting ball, and the minimum value of the aperture of the limiting hole is less than the diameter of the limiting ball.

[0014] A further technical solution thereof is that the number of the limiting holes is the same as that of the limiting balls and both are multiple. The multiple limiting holes are uniformly distributed along the circumferential direction of the inner tube, and the multiple limiting balls are respectively arranged in the multiple limiting holes in one-to-one correspondence.

[0015] A further technical solution thereof is that the limiting groove is a circular groove body arranged to surround the circumferential direction of the connecting end for one week.

[0016] A further technical solution thereof is that an outwardly protruding outer convex part is provided on the outer surface of the outer tube, and anti-slip patterns are provided on the outer convex part.

[0017] A further technical solution thereof is that a receiving groove is provided at the bottom of the weight block. The fixed seat assembly is arranged in the receiving groove, and the height of the fixed seat assembly is less than the depth of the receiving groove.

[0018] A further technical solution thereof is that the materials of the floor tube, the inner tube, the outer tube and the limiting balls are all metals.

[0019] In a second aspect, an embodiment of the present invention provides a fan, and the fan includes a chassis device based on the limit of the limiting balls as described in the first aspect.

[0020] Compared with the prior art, the technical effects that can be achieved by the embodiment of the present invention include:

[0021] By sliding the outer tube, the convex block can be made to squeeze the limiting ball or disengage from the limiting ball. When the convex block squeezes the limiting ball, a part of the limiting ball can be made to be embedded in the limiting groove, so as to realize the fixation of the floor tube. When the convex block disengages from the limiting ball, the limiting ball can slide out of the limiting groove, and at this time, the floor tube can be pulled out to realize the disassembly of the floor tube. It can be seen that in the present invention, after the connecting end of the floor tube sequentially passes through the second through hole and the first through hole and is inserted into the inner tube of the fixed seat assembly, the fixation and disassembly of the floor tube can be realized by sliding the outer tube, and the operation is simple, convenient and fast. Description of the Drawings

[0022] The accompanying drawings herein are incorporated into and constitute a part of this specification, showing embodiments in accordance with the present utility model, and are used together with the specification to explain the principles of the present utility model.

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the accompanying drawings required for use in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those of ordinary skill in the art, other accompanying drawings can also be obtained based on these drawings without creative efforts.

[0024] One or more embodiments are exemplarily illustrated by the pictures in the corresponding accompanying drawings. These exemplary illustrations do not constitute limitations on the embodiments. Elements with the same reference numerals in the accompanying drawings are represented as similar elements. Unless otherwise stated, the drawings in the accompanying drawings do not constitute a proportional limitation.

[0025] Figure 1 An exploded view of a chassis device based on a limiting ball for the embodiments of the present utility model;

[0026] Figure 2 A structural schematic diagram of a chassis device based on a limiting ball for the embodiments of the present utility model;

[0027] Figure 3 A side view of a chassis device based on a limiting ball for the embodiments of the present utility model;

[0028] Figure 4 For Figure 3 The cross-sectional view of the A-A section in;

[0029] Figure 5 An exploded view of the fixed seat assembly of a chassis device based on a limiting ball for the embodiments of the present utility model;

[0030] Figure 6 A structural schematic diagram of the fixed seat assembly of a chassis device based on a limiting ball for the embodiments of the present utility model;

[0031] Figure 7 For Figure 6 The cross-sectional view of the B-B section in;

[0032] Figure 8 A schematic diagram of a limiting ball, an elastic member, and a limiting ring installed on an inner tube in a chassis device based on a limiting ball for the embodiments of the present utility model;

[0033] Figure 9 For Figure 8 The cross-sectional view of the C-C section in.

[0034] Reference numerals

[0035] Floor-standing pipe 10, weight 20, panel 30, fixed seat assembly 40, connection end 11, limit groove 12, first through hole 21, receiving groove 22, limit ear 23, second through hole 31, main board body 32, surrounding part 33, hook 34, inner pipe 41, outer pipe 42, limit ball 43, elastic member 44, limit ring 45, limit hole 411, installation groove 412, limit flange 413, boss 414, protrusion 421, outer protrusion 422. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Similar component numbers in the drawings represent similar components. Obviously, the embodiments described below are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0037] It should be understood that when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or their combinations.

[0038] It should also be understood that the terms used in the specification of the embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the embodiments of the present invention. As used in the specification of the embodiments of the present invention and the appended claims, unless otherwise clearly specified in the context, the singular forms "a", "an", and "the" are intended to include the plural forms.

[0039] Refer to Figures 1-9 , an embodiment of the present invention provides a chassis device based on the limit of a limit ball. The chassis device based on the limit of a limit ball can improve the convenience of installation and disassembly of the floor-standing pipe 10 and the weight 20. To achieve the above technical objectives, the chassis device based on the limit of a limit ball includes a floor-standing pipe 10, a weight 20, a panel 30, and a fixed seat assembly 40. The specific structure is introduced as follows:

[0040] The floor-standing pipe 10 is provided with a connection end 11, and the outer surface of the connection end 11 is provided with a limit groove 12; the limit groove 12 plays a role in limiting and fixing the floor-standing pipe 10 and the weight 20. It can be understood that the floor-standing pipe 10 is also used for installing the head assembly of a fan. The weight 20 can be specifically blow-molded.

[0041] The weight block 20 is provided with a first through hole 21; the first through hole 21 is used for the connecting end 11 of the floor-standing pipe 10 to pass through.

[0042] The panel 30 is provided with a second through hole 31. The panel 30 covers the weight block 20, and the second through hole 31 is aligned with the first through hole 21; specifically, the second through hole 31 and the first through hole 21 have the same aperture and collinear axes. The connecting end 11 of the floor-standing pipe 10 passes through the second through hole 31 and the first through hole 21 in sequence. The outer diameter of the connecting end 11 of the floor-standing pipe 10 is the same as the aperture of the second through hole 31 and the first through hole 21, and at the same time, the outer diameter of the pipe body located above the connecting end 11 of the floor-standing pipe 10 is greater than the aperture of the second through hole 31 and the first through hole 21, so as to form a limit and prevent the entire floor-standing pipe 10 from passing through the second through hole 31 and the first through hole 21.

[0043] The fixing seat assembly 40 includes an inner pipe 41, an outer pipe 42 and a limiting ball 43; the inner pipe 41 is provided with a limiting hole 411, the inner side of the outer pipe 42 is provided with a convex block 421, the outer pipe 42 can slide on the inner pipe 41, specifically, slide along the axial direction of the inner pipe 41, and the limiting ball 43 is arranged in the limiting hole 411.

[0044] In the present utility model, the connecting end 11 of the floor-standing pipe 10 passes through the second through hole 31 and the first through hole 21 in sequence and is inserted into the inner pipe 41 of the fixing seat assembly 40, so that the position of the limiting groove 12 just reaches the limiting hole 411 of the inner pipe 41. Specifically, a limit can be set on the floor-standing pipe 10. For example, the outer diameter of the pipe body located above the connecting end 11 of the floor-standing pipe 10 is greater than the aperture of the second through hole 31 and the first through hole 21, so as to form a limit. When the floor-standing pipe 10 is inserted into the limiting position, the position of the limiting groove 12 just reaches the limiting hole 411 of the inner pipe 41. Further, the inner pipe 41 abuts against the counterweight block. Specifically, the outer diameter of the inner pipe 41 is greater than the aperture of the first through hole 21, so that the end face of the inner pipe 41 abuts against the counterweight block.

[0045] By sliding the outer tube 42, the protrusion 421 can squeeze the limiting ball 43 or be separated from the limiting ball 43; when the protrusion 421 squeezes the limiting ball 43, a part of the limiting ball 43 can be embedded in the limiting groove 12, so as to fix the stand tube 10. When the protrusion 421 is separated from the limiting ball 43, the limiting ball 43 can slide out of the limiting groove 12 to the gap between the inner tube 41 and the outer tube 42, and the stand tube 10 can be pulled out at this time to realize the removal of the stand tube 10. It can be seen that in the present utility model, after the connecting end 11 of the stand tube 10 is passed through the second through hole 31 and the first through hole 21 in turn, and inserted into the inner tube 41 of the fixing seat assembly 40, the fixing and removal of the stand tube 10 can be realized by sliding the outer tube 42, which is simple to operate, convenient and fast, and has high connection reliability.

[0046] Furthermore, the fixing seat assembly 40 further includes an elastic member 44 , which is disposed between the inner tube 41 and the outer tube 42 , and the elastic member 44 is configured to enable the outer tube 42 to slide to a position where the protrusion 421 squeezes the limiting ball 43 .

[0047] The elastic member 44 may be specifically a spring, one side of the spring abuts against the inner tube 41, and the other side abuts against the outer tube 42. One side of the spring abuts against the convex block 421 on the inner side of the outer tube 42, and the other side of the spring abuts against the boss 414 protruding from the outer side of the inner tube 41. When the spring is at its original length, the convex block 421 of the outer tube 42 is located at a position to squeeze the stop ball 43. By sliding the outer tube 42 to compress the spring, the convex block 421 of the outer tube 42 can be separated from the stop ball 43. After the external force is released, the spring returns to its original length, so that the outer tube 42 slides to the position where the convex block 421 squeezes the stop ball 43.

[0048] After the limiting ball 43 is placed in the limiting hole 411 , a spring is installed on the outside of the inner tube 41 , and the spring can resist the limiting ball 43 to prevent the limiting ball 43 from falling.

[0049] Furthermore, the fixing seat assembly 40 also includes a limiting ring 45, and a mounting groove 412 is provided at the upper end of the inner tube 41. The limiting ring 45 is embedded in the mounting groove 412, and a portion of the limiting ring 45 protrudes out of the mounting groove 412. The portion of the limiting ring 45 protruding out of the mounting groove 412 forms a limit for the outer tube 42.

[0050] The limiting ring 45 may be specifically a wire ring. The projection of the portion of the limiting ring 45 protruding out of the mounting groove 412 along the radial direction of the inner tube 41 falls on the outer tube 42 , thereby limiting the outer tube 42 .

[0051] Further, the aperture diameter of the limiting hole 411 gradually decreases from the outside to the inside of the inner tube 41. The maximum value of the aperture diameter of the limiting hole 411 is greater than the diameter of the limiting ball 43, and the minimum value of the aperture diameter of the limiting hole 411 is less than the diameter of the limiting ball 43. Thus, the limiting ball 43 can be inserted into the limiting hole 411 from the outside of the limiting hole 411 and will not fall from the inside of the limiting hole 411.

[0052] Further, the number of the limiting holes 411 is the same as the number of the limiting balls 43 and both are multiple. The multiple limiting holes 411 are evenly distributed along the circumferential direction of the inner tube 41, and the multiple limiting balls 43 are respectively arranged in the multiple limiting holes 411 one by one, so as to realize multi-point limiting and improve the reliability of limiting.

[0053] Further, the limiting groove 12 is a circular groove body arranged to surround the circumferential direction of the connection end 11 for one week.

[0054] The limiting groove 12 is distributed on the outer periphery of the entire connection end 11. Therefore, directly inserting the connection end 11 of the floor-standing pipe 10 into the inner tube 41 of the fixed seat assembly 40 can make the limiting ball 43 be inserted into the limiting groove 12 without the process of alignment, further improving the convenience of installation.

[0055] Further, the outer surface of the outer tube 42 is provided with an outwardly protruding outer convex part 422, and the outer convex part 422 is provided with anti-slip patterns. The outer convex part 422 facilitates the user to slide the outer tube 42. The anti-slip patterns can increase the friction force and improve the reliability and convenience of sliding.

[0056] Further, a receiving groove 22 is provided at the bottom of the weight 20, the fixed seat assembly 40 is arranged in the receiving groove 22, and the height of the fixed seat assembly 40 is less than the depth of the receiving groove 22. Thus, the fixed seat assembly 40 will not protrude outside the weight 20, enabling the weight 20 to be placed stably on the ground.

[0057] Further, the materials of the floor-standing pipe 10, the inner tube 41, the outer tube 42 and the limiting ball 43 are all metals, such as stainless steel, so as to improve the stability and reliability of connection and have a higher grade at the same time.

[0058] In order to further elaborate on the technical solution of the embodiment of the present invention, the assembly method of the fixed seat assembly 40 is described as follows:

[0059] The upper end of the inner tube 41 is provided with an installation groove 412, and the lower end is provided with a limiting flange 413. At the same time, a boss 414 protruding from the outside of the inner tube 41 is provided on the upper side of the limiting flange 413. During assembly, first place the limiting ball 43 in the limiting hole 411 of the inner tube 41; then install a spring on the outside of the inner tube 41. The spring can resist the limiting ball 43 to prevent the limiting ball 43 from falling off, and the bottom end of the spring abuts against the boss 414 protruding from the outside of the inner tube 41; further, install the outer tube 42 on the outside of the inner tube 41. The lower edge of the convex block 421 of the outer tube 42 abuts against the spring; the lower side of the outer tube 42 is limited by the limiting flange 413 at the lower end of the inner tube 41, and then install a limiting ring 45 in the installation groove 412 at the upper end of the inner tube 41 to limit the upper end of the outer tube 42, thereby preventing the outer tube 42 from detaching from the inner tube 41.

[0060] When the spring is at its original length, the convex block 421 is exactly at the limiting hole 411, so as to be able to squeeze the limiting ball 43. When the convex block 421 is separated from the limiting ball 43, the limiting ball 43 can slide out from the limiting groove 12 into the gap between the inner tube 41 and the outer tube 42.

[0061] Further, the panel 30 and the weight block 20 are fixed by a hook 34. Specifically, a protruding limiting ear 23 is provided on the outer edge of the upper side of the weight block 20. The panel 30 includes a main board body 32 and a surrounding portion 33 vertically extending downward from the outer periphery of the main board body 32. A hook 34 is provided inside the surrounding portion 33. The panel 30 covers the upper side of the weight block 20, and the surrounding portion 33 wraps the outside of the limiting ear 23, and the hook 34 hooks the lower edge of the limiting ear 23.

[0062] An embodiment of the present invention provides a fan, and the fan includes a chassis device based on the limitation of a limiting ball as described in the first aspect.

[0063] In the above embodiments, the descriptions of each embodiment have their own focuses. For the parts not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0064] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is 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 should not be construed as a limitation to the present invention.

[0065] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality of" is two or more unless otherwise specifically defined.

[0066] In the present utility model, unless otherwise clearly stipulated and defined, terms such as "installed", "connected", "joined", "fixed", etc. shall be construed in a broad sense. For example, it may be a connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0067] In the present utility model, unless otherwise clearly stipulated and defined, the first feature being "above" or "below" the second feature may include the direct contact of the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the first feature is at a higher level than the second feature in terms of horizontal height. The first feature being "below", "under" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the first feature is at a lower level than the second feature in terms of horizontal height.

[0068] In the description of this specification, the descriptions with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic descriptions of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0069] Obviously, those skilled in the art can make various changes and modifications to the present utility model without departing from the spirit and scope of the present utility model. Thus, provided that these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model also intends to include these changes and modifications.

[0070] The above are the specific implementation manners of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A chassis device based on the limit of a limit ball, characterized in that, Comprising: A floor-standing pipe, the floor-standing pipe is provided with a connection end, and a limiting groove is arranged on the outer surface of the connection end; A weight block, the weight block is provided with a first through hole; A panel, the panel is provided with a second through hole, the panel covers the weight block, and the second through hole is aligned with the first through hole; A fixed seat assembly, the fixed seat assembly includes an inner pipe, an outer pipe and a limiting ball; a limiting hole is opened in the inner pipe, a convex block is arranged on the inner side of the outer pipe, the outer pipe can slide on the inner pipe, and the limiting ball is arranged in the limiting hole; Wherein, the connection end of the floor-standing pipe sequentially passes through the second through hole and the first through hole, and is inserted into the inner pipe, and the inner pipe abuts against the counterweight block; by sliding the outer pipe, the convex block can be made to squeeze the limiting ball or disengage from the limiting ball; when the convex block squeezes the limiting ball, a part of the limiting ball can be made to be embedded in the limiting groove; when the convex block disengages from the limiting ball, the limiting ball can slide out of the limiting groove.

2. The chassis device based on the limit of the limit ball according to claim 1, characterized in that, The fixed seat assembly further includes an elastic member, the elastic member is arranged between the inner pipe and the outer pipe, and the elastic member is configured to make the outer pipe slide to the position where the convex block squeezes the limiting ball.

3. The chassis device based on the limit of the limit ball according to claim 2, wherein The fixed seat assembly further includes a limiting ring, an installation groove is arranged at the upper end of the inner pipe, the limiting ring is embedded in the installation groove, and a part of the limiting ring protrudes out of the installation groove, and the part of the limiting ring protruding out of the installation groove forms a limit for the outer pipe.

4. The chassis device based on the limit of the limit ball according to claim 1, characterized in that, The aperture of the limiting hole gradually decreases from the outside to the inside of the inner pipe, the maximum value of the aperture of the limiting hole is larger than the diameter of the limiting ball, and the minimum value of the aperture of the limiting hole is smaller than the diameter of the limiting ball.

5. The chassis device based on the limit of the limit ball according to claim 1, characterized in that, The number of the limiting holes is the same as the number of the limiting balls and both are multiple, and the multiple limiting holes are uniformly distributed along the circumferential direction of the inner pipe, and the multiple limiting balls are respectively arranged in the multiple limiting holes.

6. The chassis device based on the limit of the limit ball according to claim 5, characterized in that, The limiting groove is a circular groove body arranged to surround the connection end along the circumferential direction for one week.

7. The chassis device based on the limit of the limit ball according to claim 1, characterized in that, The outer surface of the outer pipe is provided with an outwardly protruding outer convex part, and anti-slip patterns are arranged on the outer convex part.

8. The chassis device based on the limit of the limit ball according to claim 1, characterized in that, A receiving groove is arranged at the bottom of the weight block, the fixed seat assembly is arranged in the receiving groove, and the height of the fixed seat assembly is smaller than the depth of the receiving groove.

9. The chassis device based on the limit of the limit ball according to claim 1, wherein The materials of the floor-standing pipe, the inner pipe, the outer pipe and the limiting ball are all metals.

10. A fan, characterized in that, Including the chassis device based on the limiting ball limit according to any one of claims 1-9.

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