A box fan with a storable foot stand
By setting a limiting structure on the connecting seat of the box fan, the problem of the leg not being able to be accurately positioned and rotated is solved, realizing accurate positioning and angle limitation of the leg, improving service life and operating efficiency, and reducing packaging volume and cost.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO SINGFUN ELECTRIC APPLIANCE
- Filing Date
- 2025-08-08
- Publication Date
- 2026-07-03
AI Technical Summary
The existing fan stand design has problems with inaccurate positioning and limiting of rotation angle, resulting in loose connections and wear, which affects service life and user experience.
Design a box fan with retractable legs. By setting a limiting structure on the connecting seat, the legs can rotate relative to the bottom within a preset angle range. Connecting seats and mounting seats are set on the shell and legs respectively to achieve accurate positioning and angle limitation of the legs.
It achieves accurate positioning and angle limitation of the tripod, reduces connection wear, improves product lifespan and operational efficiency, and reduces packaging volume and cost.
Smart Images
Figure CN224453159U_ABST
Abstract
Description
Technical Field
[0001] This application relates to a box fan with retractable legs. Background Technology
[0002] Existing fan case brackets are either detachable or fixed. If designed as a fixed structure, they cannot be disassembled, and because the brackets extend outwards, they require more packaging space and are also prone to damage.
[0003] If the design is a detachable structure, users will need to install the legs themselves after purchase, and the legs are also prone to being lost, thus reducing the user experience. For example, Chinese patent CN202021298274.0 discloses a fan box with retractable legs, which can be directly stored in the back cover when not in use. While this patent allows for individual packaging and convenient storage of the legs, preventing them from being lost, it does not allow for accurate positioning of the legs during storage and installation, nor does it limit the rotation angle of the legs. In addition, the connection method between the buckle and the back cover in this patent is relatively direct and simple, which will cause wear and tear on the connection points after long-term use, leading to loosening or even damage to the connection. Utility Model Content
[0004] The purpose of this application is to design a case fan with retractable legs, which can not only accurately position the legs when they are retracted and extended, but also limit the rotation angle of the legs. Furthermore, in the design of this application, other mating components are provided between the legs and the housing to reduce wear between them, ensuring a tight connection and durability.
[0005] This application relates to a case fan with retractable legs, the case fan including a housing and legs; the legs are disposed at the bottom of the housing; the legs are provided with a connecting seat, and the connecting seat is provided with a limiting structure; the legs are rotatably connected to the bottom through the connecting seat; the connecting seat causes the legs to rotate relative to the bottom within a preset angle range through the limiting structure.
[0006] Preferably, a mounting base may be provided on the inner wall surface of the bottom, and the mounting base may be a hollow structure; the connecting base is rotatably disposed relative to the mounting base, and the limiting structure is engaged with the mounting base; an opening groove is provided on the side wall of the mounting base; the limiting structure may include a limiting block disposed on the side wall of the connecting base; the limiting block is movably disposed in the opening groove, so that the connecting base rotates within the mounting base; the limiting structure may further include a limiting member, which is connected to the mounting base to restrict the movement of the connecting base along the axis of the mounting base; the limiting member may be a hook; the hook may engage with the top of the mounting base and be able to rotate around the circumference of the mounting base.
[0007] Preferably, the limiting block may include a first limiting block and a second limiting block; when the connecting seat rotates to a first preset position within the mounting base, the first limiting block abuts against the first groove end of the opening slot; when the connecting seat rotates to a second preset position within the mounting base, the second limiting block abuts against the second groove end of the opening slot; a support block may also be provided on the inner wall surface of the bottom; the support block may be disposed on the side of the opening slot and connected to the mounting base; the included angle between the first preset position and the second preset position may be 90°.
[0008] Preferably, the tripod may include a first tripod and a second tripod; the first tripod is rotatably connected to the bottom via a first connecting seat, and the second tripod is rotatably connected to the bottom via its second connecting seat; a fan assembly may be provided inside the housing; the fan assembly may include a motor and fan blades; the motor is disposed on the rear shell of the housing, and the fan blades are disposed on the output shaft of the motor.
[0009] The case fan with a retractable stand proposed in this application has the following technical advantages:
[0010] (1) This application provides a limiting structure on the connecting seat, so that the connecting seat can rotate the leg relative to the bottom within a preset angle range through the limiting structure;
[0011] (2) By setting connecting seats and mounting seats on the housing and the legs respectively, and designing them to be rotatable, the wear between the housing and the legs of this application is reduced, avoiding loosening of the connection and damage to the connection parts, and improving the service life and user experience of the product;
[0012] (3) This application is easy to operate. Users can open or close the tripod by simply rotating it in the indicated direction. The tripod can rotate back and forth on the shell at a preset angle to open or close it. This avoids excessive rotation angle, effectively improves the operating efficiency of the tripod, and enhances the user experience. At the same time, it can reduce the packaging volume and lower the cost. Attached Figure Description
[0013] Figure 1 This application is a three-dimensional box-fan design. Figure 1 (Tripod retracted)
[0014] Figure 2 This application is a three-dimensional box-fan design. Figure 2 (Tripod in the open position)
[0015] Figure 3 This is the top view of the fan in this application. Figure 1 (Tripod in the open position)
[0016] Figure 4 This is the top view of the fan in this application. Figure 2 (Tripod retracted)
[0017] Figure 5 This is a schematic diagram of the tripod and housing assembly in this application.
[0018] Figure 6 This application Figure 5 Enlarged view of a portion of the diagram.
[0019] Figure 7 This is a cross-sectional view of the tripod and housing in this application.
[0020] Figure 8 This application is Figure 7 Enlarged view of a portion of the diagram.
[0021] Figure 9 This is a cross-sectional view of the enclosure fan of this application. Figure 1 .
[0022] Figure 10 This is a cross-sectional view of the enclosure fan of this application. Figure 2 .
[0023] Figure 11 This is a schematic diagram of the tripod structure of this application.
[0024] In the figure: 1. Shell; 11. Base plate; 12. Mounting base; 13. Opening slot; 131. First slot end; 132. Second slot end; 14. Support block; 2. First leg; 21. First connecting seat; 22. Hook; 23. First limiting block; 24. Second limiting block; 3. Second leg; 31. Second connecting seat. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be arbitrarily combined with each other.
[0026] like Figure 1-4 , Figure 9-10 As shown, this application proposes a case fan with a retractable stand. The case fan includes a housing 1 and a stand. The stand is located at the bottom of the housing 1, for example, on a base plate 11, and is assembled with the housing 1 to form an integral unit, thus preventing the loss of parts. When opened, the stand can be used to support the housing 1. Specifically, the stand is provided with a connecting seat, and the connecting seat is provided with a limiting structure. The stand is rotatably connected to the base plate 11 through the connecting seat. The connecting seat is movably connected to the base plate 11 through its limiting structure. The connecting seat allows the stand to rotate relative to the bottom within a preset angle range, thereby supporting the housing 1 or retracting onto the base plate 11. The stand can be designed as a long strip structure, which is beneficial for supporting the housing 1. It should be noted that the limiting structure on the connecting seat is movably connected to the base plate 11, which enables the rotation function and prevents the connecting seat from detaching from the base plate 11. The stand rotates on the housing 1 at a preset angle to realize the opening and retraction functions, thus improving operational efficiency. Specifically, when the stand rotates along a preset angle to the first preset position on the housing 1, a supporting angle is formed between the stand and the housing 1, which serves to support the housing 1. When the stand rotates along a preset angle to the second preset position on the housing 1, the stand can be retracted and hidden inside the housing 1, thereby reducing the size of the fan and facilitating storage and packaging. The fan designed in this application has a simple structure and is easy to operate. Users only need to rotate the stand in the indicated direction to open or retract it, which can effectively improve the user experience.
[0027] like Figure 5-6 , Figure 11 As shown, in some embodiments, a mounting base 12 is provided on the inner wall of the base plate 11. The mounting base 12 has a hollow structure, and the base plate 11 has a connecting hole. The mounting base 12 communicates with the connecting hole or is partially or entirely disposed within the connecting hole. Specifically, the connecting base can pass through the connecting hole and be rotatably disposed within the mounting base 12. Further, the connecting base is engaged with the mounting base 12 by its limiting structure, so that the connecting base rotates around the mounting base 12 and reciprocates along a preset angle. This can prevent the tripod from rotating too much and improve operating efficiency. Specifically, the connecting base and the mounting base 12 are coaxially arranged and can rotate coaxially to realize the opening or retraction of the tripod.
[0028] like Figure 6As shown, in some embodiments, the side wall of the mounting base 12 may be provided with an opening groove 13; correspondingly, the limiting structure also includes a limiting block, which is disposed on the side wall of the connecting base. Specifically, the limiting block is movably disposed within the opening groove 13, so that the connecting base reciprocates within the mounting base 12 at a preset angle. (Reference) Figure 3 and Figure 4 As shown, the tripod rotates along the F direction; the connecting seat is rotatably disposed within the mounting base 12 so that the limiting block is movably disposed within the opening slot 13, and the limiting block can reciprocate around the circumference of the mounting base 12 within the opening slot 13, thereby allowing the connecting seat to rotate around the mounting base 12 at a preset angle, which is determined by the length of the opening slot 13 along the circumference of the mounting base 12, preferably designed to be 90°.
[0029] like Figure 5-7 As shown, in some embodiments, the connecting seat protrudes from the leg and is assembled integrally with the leg, thus preventing the leg from being lost. The base plate 11 has a connecting hole; the leg is positioned within the connecting hole via its connecting seat, and the connecting seat can rotate within the connecting hole about its axis, thereby enabling the leg to rotate. Furthermore, the limiting structure also includes a limiting member connected to the mounting base 12 to restrict the movement of the connecting seat along the axis of the mounting base 12, i.e., to prevent the connecting seat from detaching from the mounting base 12.
[0030] like Figure 5-6 , Figure 11 As shown, in some embodiments, the limiting member is preferably a hook 22, which can be engaged with the top of the mounting base 12 and can rotate around the circumference of the mounting base 12. Furthermore, multiple hooks 22 are evenly distributed around the circumference of the connecting base and are engaged with the top of the mounting base 12 respectively, thereby restricting the movement of the connecting base along the axis of the mounting base 12, that is, preventing the connecting base from detaching from the mounting base 12.
[0031] like Figure 8 , Figure 11 As shown, in some embodiments, to better achieve rotational limiting, the limiting block includes a first limiting block 23 and a second limiting block 24; the first limiting block 23 and the second limiting block 24 are spaced apart on the side wall of the connecting seat to enable the connecting seat to reciprocate within a preset angle range. Specifically, refer to... Figure 8 As shown, when the connecting seat rotates to the first preset position within the mounting base 12, the first limiting block 23 just abuts against the first slot end 131 of the opening slot 13. At this time, the connecting seat drives the entire leg to rotate to the open state, thereby realizing the support function, i.e. Figure 2 and Figure 3As shown. Further, when the connecting seat rotates to the second preset position within the mounting base 12, the second limiting block 24 just abuts against the second slot end 132 of the opening slot 13. At this time, the connecting seat drives the entire leg to rotate to a retracted state, thereby achieving the storage function, i.e., as shown. Figure 1 and Figure 4 As shown.
[0032] like Figure 8 As shown, in some embodiments, the angle between the first preset position and the second preset position is 90°, that is, the rotation angle between the limiting block and the second preset position is 90°. This ensures that when the stand rotates forward to the first preset position, it is perpendicular to the bottom plate 11 of the housing 1, forming the optimal support angle. Correspondingly, when the stand rotates backward to the second preset position, it is parallel to the bottom plate 11 of the housing 1 and retracts onto the bottom plate 11 for storage. The above structural design is relatively compact and easy to operate, which can improve the user experience of the fan.
[0033] like Figure 6 , Figure 8 as well as Figure 11 As shown, in some embodiments, since the mounting base 12 has an opening groove 13 on its side wall, a support block 14 can be provided on the inner wall of the base plate 11 to support the mounting base 12 in order to improve the strength of the mounting base 12. Specifically, the support block 14 is disposed on the side of the opening groove 13 and connected to the mounting base 12 to strengthen the support.
[0034] like Figure 1-4 As shown, in some embodiments, the tripod includes a first tripod 2 and a second tripod 3, which are symmetrically arranged on the bottom surface of the base plate 11, thus providing good support. Specifically, the first tripod 2 is rotatably connected to the base plate 11 via its first connecting seat 21 to achieve independent rotation. Correspondingly, the second tripod 3 is rotatably connected to the base plate 11 via its second connecting seat 31, also achieving independent rotation. With the above structural design, the tripod can be individually manufactured, facilitating tripod installation.
[0035] like Figure 1-4 As shown, in some embodiments, the tripod rotates back and forth within a 90° range around the vertical axis on the housing 1 to support the housing 1 or retract onto the housing 1. Preferably, when the tripod rotates around the vertical axis on the housing 1 to a first preset position, it can just open at its maximum angle, thereby supporting the housing 1; further, when the tripod rotates around the vertical axis on the housing 1 to a second preset position, it can just retract onto the housing 1. Preferably, the rotation angle of the tripod between the first preset position and the second preset position is 90°.
[0036] like Figure 1-4As shown, in some embodiments, the housing 1 provided in this application is provided with a fan assembly; the fan assembly may include a motor and a fan blade; wherein, the motor is fixedly mounted on the rear shell of the housing 1, and the fan blade is mounted on the output shaft of the motor and rotates together with the output shaft.
[0037] This application discloses a case fan with a retractable stand. The structure is simple and easy to operate. Users can open or close the stand simply by rotating it in the indicated direction, effectively improving the user experience. The stand rotates back and forth along a preset angle on the shell to open or close, avoiding large rotation angles and improving operational efficiency. The stand's ability to be retracted through rotation reduces packaging volume and lowers costs. The stand and shell are integrated, facilitating packaging and preventing the loss of accessories.
[0038] Although the embodiments disclosed in this application are as described above, the content is merely for the purpose of facilitating understanding of this application and is not intended to limit this application. Any person skilled in the art to which this application pertains may make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in this application; however, the scope of patent protection of this application shall still be determined by the scope defined in the appended claims.
Claims
1. A box door with a stowable foot stand, characterized in that, The fan includes a housing and a stand; the stand is located at the bottom of the housing; the stand is provided with a connecting seat, and the connecting seat is provided with a limiting structure; the stand is rotatably connected to the bottom through the connecting seat; the connecting seat allows the stand to rotate relative to the bottom within a preset angle range through the limiting structure.
2. The case door according to claim 1, characterized in that, A mounting base is provided on the inner wall surface of the bottom, and the mounting base is a hollow structure; the connecting base is rotatably disposed relative to the mounting base, and the limiting structure is engaged with the mounting base.
3. The case door according to claim 2, wherein The mounting base has an opening groove on its side wall; the limiting structure includes a limiting block, which is disposed on the side wall of the connecting base; the limiting block is movably disposed in the opening groove so that the connecting base can rotate within the mounting base.
4. The case door according to claim 2, wherein The limiting structure further includes a limiting member connected to the mounting base to restrict the movement of the connecting base along the axis of the mounting base.
5. The case door according to claim 4, wherein The limiting component is a hook; the hook engages with the top of the mounting base and is able to rotate around the circumference of the mounting base.
6. The fan according to claim 3, characterized in that, The limiting block includes a first limiting block and a second limiting block; when the connecting seat rotates to a first preset position within the mounting base, the first limiting block abuts against the first groove end of the opening slot; when the connecting seat rotates to a second preset position within the mounting base, the second limiting block abuts against the second groove end of the opening slot.
7. The case door according to claim 3, wherein A support block is also provided on the inner wall surface of the bottom; the support block is located on the side of the opening groove and is connected to the mounting base.
8. The case door according to claim 6, wherein The angle between the first preset position and the second preset position is 90°.
9. The case door according to claim 1, wherein The tripod includes a first tripod and a second tripod; the first tripod is rotatably connected to the bottom via a first connecting seat, and the second tripod is rotatably connected to the bottom via its second connecting seat.
10. The box door according to any one of claims 1 to 9, characterized in that The housing contains a fan assembly; the fan assembly includes a motor and fan blades; the motor is mounted on the rear shell of the housing, and the fan blades are mounted on the output shaft of the motor.