Foldable supporting chassis and fan with same

Abstract

The utility model discloses a foldable supporting chassis and a fan with the foldable supporting chassis, the supporting chassis is formed by assembling two chassis units with identical structures, one side of each chassis unit is provided with a rotating shaft, and the other side of each chassis unit is provided with a clamping groove; when the two base plate units are assembled to form the supporting base plate through clamping fit of the rotating shafts and the clamping grooves, the two base plate units can rotate relatively so that the supporting base plate can be in a folded state, an unfolded state or a completely unfolded state. In addition, grooves are further formed in the base plate unit, and when the supporting base plate is in a completely unfolded state, the two grooves are enclosed to form a positioning groove used for being nested in the bottom of the fan. Therefore, when the two base plate units are assembled to form the supporting base plate, the two base plate units can rotate relatively, and when a product needs to be packaged, the two base plate units can be folded to reduce the packaging size; after a user receives the product, the two chassis units only need to be opened to be in a completely unfolded state, operation is easy, and misoperation of the user cannot be caused.

Description

Technical Field

[0001] The utility model relates to the field of fans, and particularly to a foldable support chassis and a fan having the same. Background Art

[0002] The information provided in this part is only background information related to the present application to facilitate those skilled in the art to understand the present application more thoroughly and accurately, and it is not necessarily prior art.

[0003] At present, fans are divided into various types, such as heaters, tower fans, electric fans, etc., which accelerate air circulation in different ways to achieve the purpose of adjusting the indoor temperature or providing a comfortable environment. However, existing fans have more components, and some components such as the support chassis are relatively large in volume, resulting in trouble during packaging and transportation.

[0004] To solve the above problems, existing merchants usually split the support chassis into two chassis units with exactly the same structure, and when the user receives the product, they assemble them. However, the existing two chassis units are usually assembled by means of rotary snap connection. During assembly, it is necessary to align the positions first and then perform rotary snap connection, and the assembly operation is relatively complex; in addition, if the user first installs one chassis unit on the fan, at this time, it is impossible to install the other chassis unit on the fan, and the user is prone to misoperation, which is rather troublesome. Summary of the Utility Model

[0005] In order to overcome the defects of the above-mentioned prior art, the utility model provides a foldable support chassis and a fan having the same, which can solve the problems such as complex assembly operation and easy misoperation mentioned in the above background art.

[0006] The technical solution adopted by the utility model to solve its problems is as follows:

[0007] A foldable support chassis, which is assembled by two chassis units with exactly the same structure, wherein:

[0008] One side of the chassis unit is provided with a rotating shaft, and the other side is provided with a card slot, and a bayonet for engaging with the rotating shaft to form a rotational fit is provided in the card slot;

[0009] When the rotating shaft on one chassis unit engages with the bayonet in the card slot on the other chassis unit, and the bayonet in the card slot on one chassis unit engages with the rotating shaft on the other chassis unit, the two chassis units are assembled to form the support chassis, and the two chassis units can rotate relative to each other so that the support chassis is in a folded state, an unfolded state or a fully unfolded state;

[0010] The chassis unit is also provided with grooves. When the support chassis is in a fully unfolded state, the two grooves enclose to form a positioning groove for nesting at the bottom of the fan to achieve limit support.

[0011] Further, it further includes a first clamping structure provided on the chassis unit. When the support chassis is in a fully unfolded state, the two first clamping structures on the two chassis units cooperate to achieve clamping and fixing.

[0012] Further, the first clamping structure includes a clamping block and a clamping hole that are clamped and matched with each other, where:

[0013] One side of the chassis unit is provided with the clamping block, and the other side of the chassis unit is provided with the clamping hole;

[0014] When the support chassis is in a fully unfolded state, the clamping block on one chassis unit is clamped with the clamping hole on the other chassis unit, and the clamping hole on one chassis unit is clamped with the clamping block on the other chassis unit to achieve clamping and fixing between the two.

[0015] Further, it further includes a limiting structure provided on the chassis unit. When the support chassis is in a fully unfolded state, the two limiting structures on the two chassis units cooperate to achieve limiting and fixing.

[0016] Further, the limiting structure includes a limiting post and a limiting hole that are inserted and matched with each other, where:

[0017] One side of the chassis unit is provided with the limiting post, and the other side of the chassis unit is provided with the limiting hole;

[0018] When the support chassis is in a fully unfolded state, the limiting post on one chassis unit is inserted into the limiting hole on the other chassis unit, and the limiting hole on one chassis unit is inserted into the limiting post on the other chassis unit to achieve limiting and fixing between the two.

[0019] Further, it further includes a first avoidance hole opened on the chassis unit and communicating with the groove, a second avoidance hole opened at the edge of the chassis unit, and a third avoidance hole opened on the chassis unit and located between the first avoidance hole and the second avoidance hole. The first avoidance hole, the third avoidance hole, and the second avoidance hole are sequentially communicated to form a wiring channel for the fan power cord to pass through and extend out.

[0020] Further, the groove is opened at the top of the chassis unit, and a first arc-shaped groove surrounding the outer periphery of the groove is opened at the bottom of the chassis unit. A plurality of first reinforcing ribs are arranged at intervals along the circumferential direction in the first arc-shaped groove.

[0021] Further, it further includes a second arc-shaped groove formed at the bottom of the chassis unit and wound around the outer periphery of the first arc-shaped groove, and a plurality of second reinforcing ribs are arranged at intervals in the circumferential direction in the second arc-shaped groove.

[0022] In addition, the present utility model further provides a fan, including the above-mentioned supporting chassis and a fan body, wherein:

[0023] A bottom cover is provided at the bottom of the fan body, and the supporting chassis is nested on the bottom cover through the positioning groove;

[0024] A positioning structure is provided between the chassis unit and the bottom cover to achieve snap connection and fixation.

[0025] Further, the positioning structure includes a positioning hole and a positioning spring buckle that are snap-fitted with each other, and one of the positioning hole and the positioning spring buckle is arranged on the groove of the chassis unit, and the other is arranged on the bottom cover.

[0026] In summary, the foldable support chassis provided by the present utility model and the fan having the same, by providing a rotating shaft and a card slot on the chassis unit, when two chassis units are assembled to form a support chassis, the two chassis units can rotate relative to each other. When the product needs to be packaged, the two chassis units can be folded to reduce the packaging volume, thus facilitating packaging and transportation; after the user receives the product, only need to open the two chassis units to the fully unfolded state, the operation is simple, and it will not cause misoperation by the user, which is very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural diagram of the foldable support chassis of the present utility model;

[0028] Figure 2 is Figure 1 a schematic structural diagram from another perspective;

[0029] Figure 3 is an exploded schematic diagram of the foldable support chassis of the present utility model;

[0030] Figure 4 is a schematic structural diagram of the foldable support chassis of the present utility model in a folded state;

[0031] Figure 5 is a schematic structural diagram of a partial structure of the fan of the present utility model;

[0032] Figure 6 is an exploded schematic diagram of a partial structure of the fan of the present utility model;

[0033] Figure 7 is Figure 5 a schematic structural diagram from another perspective.

[0034] Among them, the meanings of the reference numerals are as follows:

[0035] 1. Support chassis; 11. Chassis unit; 111. Groove; 112. Rotating shaft; 113. Card slot; 1131. Bayonet; 1141. Card block; 1142. Card hole; 1151. Limit post; 1152. Limit hole; 1161. First avoidance hole; 1162. Second avoidance hole; 1163. Third avoidance hole; 117. First arc-shaped groove; 1171. First reinforcing rib; 118. Second arc-shaped groove; 1181. Second reinforcing rib; 119. Positioning hole; 2. Bottom cover; 21. Positioning snap. Specific embodiments

[0036] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0037] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred module or element 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.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0039] Embodiment 1

[0040] Refer to Figures 1-4, the present utility model provides a foldable support chassis 1, which is assembled by two chassis units 11 with exactly the same structure. Specifically, the chassis unit 11 is of a semi-circular structure. A rotating shaft 112 is provided on one side of the bottom of the chassis unit 11, and a card slot 113 is provided on the other side thereof, and a bayonet 1131 that is engaged with and forms a rotational fit with the rotating shaft 112 is provided in the card slot 113. When it is necessary to assemble the two chassis units 11 into the support chassis 1, the rotating shaft 112 on the chassis unit 11 on one side can be engaged with the bayonet 1131 in the card slot 113 on the chassis unit 11 on the other side. At the same time, when the bayonet 1131 in the card slot 113 on the chassis unit 11 on one side is engaged with the rotating shaft 112 on the other chassis unit 11, the assembly can be completed at this time. Among them, the two chassis units 11 can rotate relative to each other so that the support chassis 1 is in a folded state, an unfolded state or a fully unfolded state.

[0041] Among them, when the support chassis 1 is in the folded state, the two chassis units 11 are arranged in parallel (as Figure 4 shown); when the support chassis 1 is in the unfolded state, the two chassis units 11 are arranged at an interval of a certain angle; when the support chassis 1 is in the fully unfolded state, the two chassis units 11 are arranged flush with each other (as Figure 1 shown).

[0042] In addition, a semi-circular groove 111 is provided at the top of the chassis unit 11. When the support chassis 1 is in the fully unfolded state, the two semi-circular grooves 111 enclose a circular positioning groove for nesting at the bottom of the fan to achieve limit support.

[0043] Thus, by providing the rotating shaft 112 and the card slot 113 on the chassis unit 11, when the two chassis units 11 are assembled to form the support chassis 1, the two chassis units 11 can rotate relative to each other. When it is necessary to package the product, the two chassis units 11 can be rotated and closed so that the support chassis 1 is in the folded state, thereby reducing the packaging volume and facilitating the packaging and transportation of the product. After the user receives the product, only need to rotate and open the two chassis units 11 until the support chassis 1 is in the fully unfolded state, and then assemble the support chassis 1 and the fan. The operation is simple and will not cause misoperation by the user, which is very convenient.

[0044] Furthermore, it also includes a first clamping structure arranged on the chassis unit 11, and when the supporting chassis 1 is in a fully unfolded state, the two first clamping structures on the two chassis units 11 cooperate to achieve clamping fixation. Specifically, the first clamping structure includes a clamping block 1141 and a clamping hole 1142 that are clamped and matched with each other, and the clamping block 1141 is provided on one side of the end face of the chassis unit 11, and the clamping hole 1142 is provided on the other side; when the two chassis units 11 are driven to rotate and open until the supporting chassis 1 is in a fully unfolded state, at this time, the two chassis units 11 are arranged flush and the clamping block 1141 on the chassis unit 11 on one side is clamped with the clamping hole 1142 on the chassis unit 11 on the other side, and at the same time, the clamping hole 1142 on the chassis unit 11 on one side is clamped with the clamping block 1141 on the other chassis unit 11 to achieve clamping fixation between the two chassis units 11.

[0045] In this embodiment, the clamping block 1141 is an elastic clamping block, which can move when subjected to force so as to be clamped into or out of the clamping hole 1142 .

[0046] Of course, in order to further improve the stability of the supporting chassis 1 in the fully expanded state, the supporting chassis 1 also includes a limiting structure arranged on the chassis unit 11. When the supporting chassis 1 is in the fully expanded state, the two limiting structures on the two chassis units 11 cooperate to achieve limited fixation. Specifically, the limiting structure includes a limiting column 1151 and a limiting hole 1152 that are plugged in and matched with each other. The limiting column 1151 is convexly provided on one side of the end face of the chassis unit 11, and the limiting hole 1152 is provided on the other side. When the two chassis units 11 are driven to rotate and open until the supporting chassis 1 is in the fully expanded state, the limiting column 1151 on the chassis unit 11 on one side is plugged in with the limiting hole 1152 on the chassis unit 11 on the other side, and the limiting hole 1152 on the chassis unit 11 on one side is plugged in with the limiting column 1151 on the chassis unit 11 on the other side to achieve limited fixation between the two.

[0047] In this embodiment, the rotating shaft 112 , the locking slot 113 , the locking block 1141 , the locking hole 1142 , the limiting column 1151 and the limiting hole 1152 on the chassis unit 11 are all integrally injection molded.

[0048] See also Figures 1-4, further including a first avoidance hole 1161 formed in the chassis unit 11 and communicating with the groove 111, a second avoidance hole 1162 formed at the edge of the chassis unit 11, and a third avoidance hole 1163 formed in the chassis unit 11 and located between the first avoidance hole 1161 and the second avoidance hole 1162. Thus, the first avoidance hole 1161, the third avoidance hole 1163, and the second avoidance hole 1162 are sequentially communicated to form a wiring channel for the fan power cord to pass through and extend out, making the wiring layout of the power cord more reasonable, thereby avoiding phenomena such as the power cord being entangled.

[0049] Furthermore, a first arc-shaped groove 117 surrounding the outer circumference of the groove 111 is formed at the bottom of the chassis unit 11, and a plurality of first reinforcing ribs 1171 are arranged at intervals along the circumferential direction in the first arc-shaped groove 117. In addition, a second arc-shaped groove 118 surrounding the outer circumference of the first arc-shaped groove 117 is formed at the bottom of the chassis unit 11, and a plurality of second reinforcing ribs 1181 are arranged at intervals along the circumferential direction in the second arc-shaped groove 118.

[0050] Thus, by forming the first arc-shaped groove 117 and the second arc-shaped groove 118 on the chassis unit 11, the weight of the chassis unit 11 is reduced, making it more convenient for transportation, while reducing materials and lowering costs. In addition, by arranging a plurality of first reinforcing ribs 1171 in the first arc-shaped groove 117 and a plurality of second reinforcing ribs 1181 in the second arc-shaped groove 118, it is ensured that the support strength of the chassis unit 11 can be guaranteed while reducing materials, avoiding deformation and scrapping, and thus extending the service life.

[0051] Embodiment 2

[0052] Refer to Figures 5-7 , the present utility model further provides a fan, including the foldable support chassis 1 of the above-mentioned Embodiment 1 and a fan body. A bottom cover 2 is provided at the bottom of the fan body, and the support chassis 1 is nested on the bottom cover 2 through a positioning groove.

[0053] In this embodiment, the fan is a heater; of course, in other embodiments, it can also be other types of fans such as an electric fan or a tower fan, which are not limited here.

[0054] Wherein, a positioning structure is provided between the chassis unit 11 and the bottom cover 2 to achieve snap-fitting fixation. Specifically, the positioning structure includes a positioning hole 119 formed in the groove 111 of the chassis unit 11 and a positioning snap 21 provided at the bottom of the bottom cover 2. When the support chassis 1 is nested on the bottom cover 2 through the positioning groove until the positioning snap 21 snaps into the positioning hole 119, snap-fitting fixation between the two can be achieved.

[0055] It should be noted that in other embodiments, the positions of the positioning holes 119 and the positioning spring catches 21 can also be interchanged, and the same technical effects can be achieved, without any restrictions here.

[0056] In this embodiment, four positioning spring catches 21 are provided and are distributed in a rectangular shape at the bottom of the bottom cover 2. Four positioning holes 119 are also provided and are all located within the positioning grooves.

[0057] In summary, for the foldable support chassis 1 and the fan having the same provided by the present utility model, by providing the rotating shaft 112 and the card slots 113 on the chassis unit 11, when two chassis units 11 are assembled to form the support chassis 1, the two chassis units 11 can rotate relative to each other. When the product needs to be packaged, the two chassis units 11 can be folded to reduce the packaging volume, thus facilitating packaging and transportation. After the user receives the product, the two chassis units 11 only need to be opened to the fully unfolded state, which is simple to operate and will not cause misoperation by the user, being very convenient.

[0058] It should be understood that the orientation or positional relationship indicated by terms such as "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the module or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present utility model.

[0059] In addition, in the description of the present utility model, "a plurality of" and "several" mean two or more, unless otherwise specifically and clearly defined.

[0060] The technical means disclosed in the solution of the present utility model are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present utility model.

Claims

1. A foldable support chassis, characterized in that, The support chassis is assembled by two chassis units with exactly the same structure, where: One side of the chassis unit is provided with a rotating shaft, and the other side is provided with a slot, and a bayonet that is clamped and forms a rotational fit with the rotating shaft is opened in the slot; When the rotating shaft on one chassis unit is clamped with the bayonet in the slot on the other chassis unit, and the bayonet in the slot on one chassis unit is clamped with the rotating shaft on the other chassis unit, the two chassis units are assembled to form the support chassis, and the two chassis units can rotate relative to each other so that the support chassis is in a folded state, an unfolded state or a fully unfolded state; A groove is also opened on the chassis unit. When the support chassis is in the fully unfolded state, the two grooves enclose to form a positioning groove for nesting at the bottom of the fan to achieve limit support.

2. The foldable support chassis according to claim 1, wherein It also includes a first clamping structure arranged on the chassis unit. When the support chassis is in the fully unfolded state, the two first clamping structures on the two chassis units cooperate to achieve clamping and fixing.

3. The foldable support chassis according to claim 2, characterized in that, The first clamping structure includes a clamping block and a clamping hole that are clamped and matched, where: One side of the chassis unit is provided with the clamping block, and the other side of the chassis unit is provided with the clamping hole; When the support chassis is in the fully unfolded state, the clamping block on one chassis unit is clamped with the clamping hole on the other chassis unit, and the clamping hole on one chassis unit is clamped with the clamping block on the other chassis unit to achieve clamping and fixing between the two.

4. The foldable support chassis according to any one of claims 1 to 3, characterized in that, It also includes a limiting structure arranged on the chassis unit. When the support chassis is in the fully unfolded state, the two limiting structures on the two chassis units cooperate to achieve limiting and fixing.

5. The foldable support chassis according to claim 4, characterized in that, The limiting structure includes a limiting post and a limiting hole that are inserted and matched, where: One side of the chassis unit is provided with the limiting post, and the other side of the chassis unit is opened with the limiting hole; When the support chassis is in the fully unfolded state, the limiting post on one chassis unit is inserted into the limiting hole on the other chassis unit, and the limiting hole on one chassis unit is inserted into the limiting post on the other chassis unit to achieve limiting and fixing between the two.

6. The foldable support chassis according to claim 1, wherein It also includes a first avoidance hole opened on the chassis unit and communicating with the groove, a second avoidance hole opened at the edge of the chassis unit, and a third avoidance hole opened on the chassis unit and located between the first avoidance hole and the second avoidance hole. The first avoidance hole, the third avoidance hole and the second avoidance hole are sequentially communicated to form a wiring channel for the fan power cord to pass through and extend out.

7. The foldable support chassis according to claim 1, characterized in that, The groove is opened at the top of the chassis unit, and a first arc-shaped groove is opened at the bottom of the chassis unit and wound around the outer circumference of the groove. A plurality of first reinforcing ribs are arranged at intervals along the circumferential direction in the first arc-shaped groove.

8. The foldable support chassis according to claim 7, characterized in that, It also includes a second arc-shaped groove opened at the bottom of the chassis unit and wound around the outer circumference of the first arc-shaped groove. A plurality of second reinforcing ribs are arranged at intervals along the circumferential direction in the second arc-shaped groove.

9. A fan, characterized in that, It includes a foldable support chassis as described in any one of claims 1-8 and a fan body, where: A bottom cover is provided at the bottom of the fan body, and the support chassis is nested on the bottom cover through the positioning groove; A positioning structure is provided between the chassis unit and the bottom cover to achieve snap-fitting and fixation.

10. The fan according to claim 9, characterized in that, The positioning structure includes a positioning hole and a positioning spring buckle that are snap-fitted with each other. One of the positioning hole and the positioning spring buckle is provided on the groove of the chassis unit, and the other is provided on the bottom cover.

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