Fan structure with detachable rear net

Abstract

The utility model belongs to the technical field of fans, and particularly relates to a rear net detachable fan structure which comprises a base, a fan shell and a rear net cover. The fan shell is arranged on the base, and the rear net cover covers the rear side of the fan shell; a retaining ring and a reset spring are further included. The rear end side of the fan shell extends to form a supporting ring, the supporting ring is provided with a plurality of inverted buckles, and the inverted buckles are provided with hook parts extending in the circumferential direction. The retaining ring rotatably sleeves the supporting ring, and a limiting plate extends from the inner ring of the retaining ring and is positioned on one side of the inverted buckle; the retaining ring is provided with two free ends, the retaining ring is sleeved with the rear net cover, two limiting grooves are formed in the inner ring of the rear net cover, and the two ends of the retaining ring extend into the corresponding limiting grooves respectively. The reset spring abuts against one free end of the retaining ring, so that the rear net cover and the fan shell are fixed. The retaining ring is further provided with a shifting part, so that the limiting plate is separated from the hook part. The retaining ring is pushed through the reset spring, so that the limiting plate is always matched with the inverted hook part, the connection stability is improved, and the retaining ring is prevented from being separated from the supporting ring.

Description

Technical Field

[0001] This utility model belongs to the field of fan technology, and in particular relates to a fan structure with a detachable rear grille. Background Technology

[0002] A fan is a device that uses an electric motor to drive blades to rotate, thereby generating airflow. It is mainly used for air circulation, cooling, ventilation, and heat dissipation. Fans are widely used in homes, offices, industrial settings, and many other places.

[0003] A fan typically consists of a fan grille assembly and a drive assembly connected together. The fan grille assembly mainly includes a front grille, a rear grille, and fan blades. The drive assembly includes a motor front cover and a motor shaft. In traditional fan designs, the front grille is located in front of the fan blades and is fixed separately to the rear grille. The rear grille is fixed separately to the motor front cover by screws. The fan blades are connected to the motor shaft and the motor shaft pin or buckle through a shaft connector that is integrated with the fan blades.

[0004] Chinese utility model patent CN221857129U discloses an electric fan. The rear grille is directly fitted onto a component on the fan body. After the rear grille is fitted onto the fan body, a first fixing member engages with the fan body and is tightened, thus securing the rear grille firmly to the fan body. For disassembly, the first fixing member is first removed, and then the rear grille can be removed forward. After installing the rear grille, the fan blades are installed. A motor is mounted on the fan body, extending from the motor shaft. The fan blades engage with the motor shaft. After the fan blades engage with the motor shaft, a second fixing member engages with the motor shaft and is tightened, ensuring stable installation of the fan blades and preventing movement or wobbling along the axial direction of the motor shaft. For disassembly, the second fixing member is first removed from the motor shaft, and then the fan blades are removed from the motor shaft. The rear grille and front grille are connected by protrusions and grooves. By rotating the front grille in the first direction according to the markings on the front grille, the front and rear grilles can be disassembled.

[0005] The technical solution disclosed in the aforementioned patent document is to detach the front net from the rear net by rotating the front net. As the front net is disassembled and reassembled more often, the fasteners between the front and rear nets will wear down, causing the front net to loosen easily and fall off easily. Utility Model Content

[0006] The purpose of this utility model is to provide a detachable rear grille fan structure to solve the problem that the current fans that can be detached from the front and rear grilles with clips can easily cause the front or rear grilles to become loose.

[0007] To achieve the above object, the utility model discloses a kind of rear net detachable fan structure, including base, fan shell and rear net cover;The fan shell is located on the base, and the rear net cover is covered in the rear side of the fan shell;Further including snap ring and reset spring;The rear end side of the fan shell extends support ring, the support ring is equipped with multiple reverse buckles, the reverse buckle is equipped with the hook portion extending along the circumferential direction;The snap ring is rotatably sleeved on the support ring, the inner circle of the snap ring extends limit plate, and the limit plate is located on the side of the reverse buckle, for being buckled with the hook portion;The snap ring has two free ends, the rear net cover is sleeved on the outside of the snap ring, the inner circle of the rear net cover is equipped with two limit grooves, and the two ends of the snap ring are respectively inserted into the limit groove corresponding;The reset spring is abutted on one free end of the snap ring, for pushing the limit plate to be clamped into the inside of the hook portion, so that the rear net cover is fixed with the fan shell;The snap ring is further equipped with a poking portion, for rotating the snap ring, so that the limit plate is separated from the hook portion.

[0008] Further, the rear net cover is provided with an empty slot, and the poking portion is located in the empty slot.

[0009] Further, the inner side of the rear net cover is provided with a ring groove, the mouth part of the rear net cover is provided with a limit protrusion, one side of the snap ring extends a limit ring inserted into the ring groove, and the limit protrusion limits the other side of the snap ring.

[0010] Further, the inner circle of the snap ring extends a support ring, the support ring is used for supporting on the support ring, and the limit plate extends along one side of the inner circle of the support ring.

[0011] Further, the support ring is further provided with multiple limit rib plates, the support ring is provided with multiple limit notches matched with the limit rib plates, and the limit notches limit the rotating stroke of the snap ring on both sides.

[0012] Further, the main body of the reverse buckle forms the limit rib plate; and the notch extends to the limit plate.

[0013] Further, the end side of the fan shell is further provided with an annular groove, and the limit plate is inserted into the annular groove.

[0014] Further, both ends of the rear net cover are provided with a side plate, a baffle and a cover plate, the side plate, the baffle and the cover plate enclose the limit groove; one free end of the snap ring is provided with a limit column, and the reset spring is sleeved between the limit column and the baffle.

[0015] The above one or more technical solutions in the rear net detachable fan structure provided by the utility model embodiment have at least the following technical effects:

[0016] 1. The two ends of the clasp ring are limited in the two limiting grooves of the rear mesh cover, so that the clasp ring is integrated with the rear mesh cover, and then the clasp ring is sleeved on the supporting ring, and under the action of the reset spring, the limiting plate is pushed into the hook part and cooperates with the hook part; the rear mesh cover is connected with the fan shell as a whole. Since the clasp ring is pushed by the reset spring, the limiting plate always cooperates with the hook part of the reverse clasp, thereby increasing the stability of the connection and preventing the clasp ring from being separated from the supporting ring.

[0017] 2. When the rear mesh cover needs to be disassembled, the clasp ring is rotated by pushing the actuating part to overcome the pushing force of the reset spring, and the limiting plate is separated from the hook part, so that the rear mesh cover and the clasp ring can be separated from the fan shell together, realizing simple disassembly and assembly and convenient operation. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0019] Figure 1 The structural diagram of the rear mesh detachable fan structure provided by the embodiments of the present application.

[0020] Figure 2 The exploded view of the rear mesh detachable fan structure provided by the embodiments of the present application.

[0021] Figure 3 The sectional view of the rear mesh detachable fan structure provided by the embodiments of the present application.

[0022] Figure 4 The structural diagram of the fan shell of the rear mesh detachable fan structure provided by the embodiments of the present application.

[0023] Figure 5 The structural diagram of the clasp ring of the rear mesh detachable fan structure provided by the embodiments of the present application. Figure 5

[0024] Figure 6 The structural diagram of the rear mesh cover of the rear mesh detachable fan structure provided by the embodiments of the present application.

[0025] Figure 7 The structural diagram of the rear mesh cover of the rear mesh detachable fan structure provided by the embodiments of the present application. DETAILED DESCRIPTION

[0026] ​The embodiments of the present application are described below in detail, examples of the embodiments are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary, and are intended to explain the embodiments of the present application, and cannot be understood as a limitation of the present application.

[0027] In the description of the embodiments of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0028] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0029] In the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0030] In an embodiment of the detachable fan structure of the present application, please refer to Figures 1 to 7, detachable fan structure, comprising a base 100, a fan shell 200 and a rear net cover 300, a clasp 400 and a reset spring 500. The fan shell 200 is arranged on the base 100, and the rear net cover 300 covers the rear side of the fan shell 200. The rear end side of the fan shell 200 extends with a support ring 210, and the support ring 210 is provided with a plurality of reverse buckles 211, which are provided with hook portions 212 extending along the circumferential direction. The clasp 400 is rotatably sleeved on the support ring 210, and the inner ring of the clasp 400 extends with a limiting plate 410, which is located on one side of the reverse buckle 211 and is used for buckling with the hook portion 212. The clasp 400 has two free ends 401, 402, the rear net cover 300 is sleeved on the outer side of the clasp 400, the inner ring of the rear net cover 300 is provided with two limiting grooves 301, 302, one of the free ends 401 of the clasp 400 extends into one of the limiting grooves 301, and the other free end extends into the other limiting groove 302, so that the clasp 400 is limited in the rear net cover 300. The reset spring 500 abuts against one of the free ends 401 of the clasp 400, and is used for pushing the clasp 400, so that the limiting plate 410 is clamped into the inner side of the hook portion 212, thereby fixing the rear net cover 300, the clasp 400 and the fan shell 200 as a whole. The clasp 400 is also provided with a pushing portion 403, which is used for rotating the clasp 400 to make the limiting plate 410 disengage from the hook portion 212.

[0031] The detachable fan structure of the above embodiment limits the two ends of the clasp 400 in the two limiting grooves 301, 302 of the rear net cover 300, so that the clasp 400 is integrated with the rear net cover 300, and then the clasp 400 is sleeved on the support ring 210, and under the action of the reset spring 500, the limiting plate 410 is clamped into the hook portion 212 and cooperates with the hook portion 212. The rear net cover 300 is connected with the fan shell 200 as a whole. Since the clasp 400 is rotated and reset by the reset spring 500, the limiting plate 410 always cooperates with the hook portion 212 of the reverse buckle 211, thereby increasing the stability of the connection and preventing the clasp 400 from disengaging from the support ring 210. When it is necessary to disassemble the rear net cover 300, the pushing portion 403 is pushed to rotate the clasp 400 against the pushing force of the reset spring 500, and the limiting plate 410 disengages from the hook portion 212, so that the rear net cover 300 and the clasp 400 can be separated from the fan shell 200 together, thereby realizing simple disassembly and assembly and convenient operation.

[0032] Further, with reference to Figure 1 , the rear net cover 300 is provided with an empty slot 303, and the pushing portion 403 is located in the empty slot 303. Specifically, in this embodiment, the empty slot 303 is used to limit the pushing portion 403, thereby limiting the stroke of the clasp 400 and preventing the clasp 400 from disengaging from the limiting grooves 301, 302.

[0033] Further, with reference to Figure 2 and Figure 7The inner side of the rear net cover 300 is provided with a ring groove 304, and the mouth of the rear net cover 300 is provided with a limiting protrusion 305. One side of the buckle ring 400 extends a limiting ring 404 which extends into the ring groove 304, and the limiting protrusion 305 limits the other side of the buckle ring 400. In the embodiment, the limiting protrusion 305 limits the buckle ring 400 in the ring groove 304, thereby increasing the stability of the connection between the buckle ring 400 and the rear net cover 300.

[0034] Further, referring to Figure 1 , Figure 2 , Figure 3 and Figure 6 , the inner ring of the buckle ring 400 extends a supporting ring 420 which is used to support on the supporting ring 210, and the limiting plate 410 extends along one side of the inner ring of the supporting ring 420. In the embodiment, after the rear net cover 300 is assembled with the fan shell 200, the supporting ring 420 supports on the supporting ring 210 of the fan shell 200, so that the rear net cover 300 supports on the fan shell 200, thereby increasing the stability of the assembly of the rear net cover 300 and the fan shell 200.

[0035] Further, referring to Figure 4 and Figure 5 , the supporting ring 210 is further provided with a plurality of limiting rib plates. Specifically, the main body part of the reverse buckle 211 forms the limiting rib plate. The supporting ring 420 is provided with a plurality of limiting notches 421 which cooperate with the limiting rib plates, and the notches 421 extend to the limiting plate 410. The two sides of the limiting notches 421 limit the rotating stroke of the buckle ring 400.

[0036] Further, referring to Figure 4 and Figure 5 , the end side of the fan shell 200 is further provided with an annular groove 201, and the limiting plate 410 extends into the annular groove 201. In the embodiment, the annular groove 201 plays a guiding and limiting role on the buckle ring 400, thereby ensuring that the buckle ring 400 can stably rotate.

[0037] Further, referring to Figure 2 and Figure 7 , the two ends of the rear net cover 300 are provided with a side plate 310, a baffle 320 and a cover plate 330. The side plate 310, the baffle 320 and the cover plate 330 enclose a limiting groove. One free end 401 of the buckle ring 400 is provided with a limiting column 430, and a reset spring 500 is sleeved between the limiting column 430 and the baffle 320.

[0038] The above is only a preferred embodiment of the present application, and is not used to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A rear net detachable fan structure comprising a base, a fan case and a rear net cover; the fan case is arranged on the base, and the rear net cover covers the rear side of the fan case; characterized in that, The fan shell is provided with a rear net cover, a buckle ring and a reset spring; the rear end side of the fan shell extends a supporting ring, the supporting ring is provided with a plurality of reverse buckles, the reverse buckles are provided with hook portions extending along the circumferential direction; the buckle ring is rotatably sleeved on the supporting ring, the inner ring of the buckle ring extends a limiting plate, and the limiting plate is located on one side of the reverse buckle and used for buckling with the hook portion; the buckle ring has two free ends, the rear net cover is sleeved on the outer side of the buckle ring, the inner ring of the rear net cover is provided with two limiting grooves, and the two ends of the buckle ring respectively extend into the corresponding limiting grooves; the reset spring is abutted against one free end of the buckle ring and used for pushing the limiting plate to be clamped into the inner side of the hook portion, so that the rear net cover is fixed with the fan shell; the buckle ring is further provided with a pushing portion, the pushing portion is used for pushing the buckle ring to rotate, and the limiting plate is separated from the hook portion.

2. The rear-mesh detachable fan structure according to claim 1, characterized in that: The rear net cover is provided with an emptying groove, and the pushing portion is located in the emptying groove.

3. The rear-mesh detachable fan structure according to claim 1, characterized in that: The inner side of the rear net cover is provided with a ring groove, the mouth portion of the rear net cover is provided with a limiting protrusion, one side of the buckle ring extends a limiting ring extending into the ring groove, and the limiting protrusion limits the other side of the buckle ring.

4. The rear-mesh detachable fan structure according to any one of claims 1 to 3, characterized in that: The inner ring of the buckle ring extends a supporting ring, the supporting ring is used for supporting on the supporting ring, and the limiting plate extends along one side of the inner ring of the supporting ring.

5. The rear-mesh detachable fan structure according to claim 4, characterized in that: The supporting ring is further provided with a plurality of limiting rib plates, and the supporting ring is provided with a plurality of limiting notches matched with the limiting rib plates, and the limiting notches limit the rotating stroke of the buckle ring on both sides.

6. The rear-mesh detachable fan structure according to claim 5, characterized in that: The main body of the reverse buckle forms the limiting rib plate; and the notch extends to the limiting plate.

7. The rear-mesh detachable fan structure according to any one of claims 1 to 3, characterized by: The end side of the fan shell is further provided with an annular groove, and the limiting plate extends into the annular groove.

8. The rear-mesh detachable fan structure according to any one of claims 1 to 3, characterized by: Both ends of the rear net cover are provided with a side plate, a baffle and a cover plate, the side plate, the baffle and the cover plate enclose the limiting groove; one free end of the buckle ring is provided with a limiting column, and the reset spring is sleeved between the limiting column and the baffle.

Images