A desktop vacuum cleaner preventing rotation of an upper cover

Abstract

The utility model discloses a desktop dust collector of preventing upper cover rotation belongs to desktop dust collector technical field, and the purpose is in overcoming the defect that the existing upper cover is easy to rotate relative to the shell and leads to button operation difficult. Desktop dust collector includes lower cover, upper cover and shell, and lower cover is detachably fixed on shell through rotating joint structure, and upper cover is detachably fixed on shell, and upper cover is equipped with circumferential positioning structure to make upper cover relative to shell circumferential fixed. Due to the action of circumferential positioning structure, upper cover will not rotate relative to shell with the screwing action of lower cover, and the relative position of upper cover and shell is kept stable. Avoided because upper cover relative to shell rotation, lead to button switch tight and resist on upper cover, even embed into the inside of upper cover and cannot bounce back, guarantee the normal function of button switch.

Description

Technical Field

[0001] This utility model belongs to the technical field of desktop vacuum cleaners, and relates to a desktop vacuum cleaner with an anti-rotation top cover. Background Technology

[0002] Chinese patent literature discloses a utility model patent for a timed desktop vacuum cleaner, authorization announcement number CN214284751U. The lower cover is rotatably latched onto the middle shell, and the upper cover is also latched onto the middle shell. When cleaning the dust inside the desktop vacuum cleaner, the lower cover needs to be removed by twisting. When twisting the lower cover, one hand holds the upper cover and the other holds the lower cover. Due to the latching gap between the upper cover and the middle shell, the upper cover will rotate relative to the middle shell. The button switch can easily become stuck against the upper cover, or even embedded inside the upper cover and unable to spring back, thus affecting the button switch's pressing experience. Summary of the Invention

[0003] This utility model addresses the problems existing in the prior art by proposing a desktop vacuum cleaner with an anti-rotation top cover, aiming to overcome the defect that the top cover is prone to rotating relative to the middle shell, making button operation difficult.

[0004] This utility model is implemented as follows: A desktop vacuum cleaner with an anti-rotation top cover includes a lower cover, an upper cover, and a middle shell. The lower cover is detachably fixed to the middle shell via a rotating snap-fit ​​structure, and the upper cover is detachably fixed to the middle shell. The upper cover is characterized by having a circumferential positioning structure to fix the upper cover circumferentially relative to the middle shell.

[0005] The middle shell is provided with an upwardly protruding mounting bracket, and the mounting bracket is provided with a button. The circumferential positioning structure is a positioning rib located on the side wall of the upper cover, and the positioning rib abuts against both sides of the mounting bracket.

[0006] The upper corner of the mounting bracket is chamfered or rounded.

[0007] The middle shell is equipped with a battery, a push switch and a motor. The push switch is connected to the button. The motor is connected to the battery and the push switch through wires. A cover is also fixed on the middle shell, which covers the push switch.

[0008] The cover covers the connection point between the wire and the motor.

[0009] The top cover is integrally formed, and the inner side of the center of the top wall of the top cover has a glue injection point.

[0010] The inner side of the top wall of the upper cover has a first protruding rib that protrudes downward, and the first protruding rib abuts against the upper end of the motor.

[0011] The inner side of the top wall of the top cover has a downwardly protruding second rib, which abuts against the battery.

[0012] The second rib is annular, and the battery includes two dry cell batteries, which are located on both sides of the motor. The second rib abuts against the two dry cell batteries.

[0013] The rotating snap-fit ​​structure includes a slot on the side wall of the middle shell, the slot including an opening facing the mounting port and a laterally extending fixing groove. The bottom of the lower cover has an annular rib spaced apart from the side wall of the lower cover. The lower end of the middle shell is located inside the annular rib. The inner side of the annular rib has a snap-fit ​​part, which is snapped into the slot.

[0014] The present invention has the following beneficial effects: During the process of disassembling the lower cover to clean up debris, when one hand holds the upper cover and the other hand twists the lower cover, due to the circumferential positioning structure, the upper cover will not rotate relative to the middle shell as the lower cover is twisted, thus maintaining the relative position stability between the upper cover and the middle shell. This avoids the situation where the button switch is pressed against the upper cover or even embedded inside the upper cover due to the rotation of the upper cover relative to the middle shell, thus ensuring the normal function of the button switch. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the exploded structure of a desktop vacuum cleaner; Figure 2 A cross-sectional view of a desktop vacuum cleaner; Figure 3 A schematic diagram of the desktop vacuum cleaner after removing the top cover; Figure 4 This is a partial structural diagram of a desktop vacuum cleaner; Figure 5 This is a schematic diagram of the upper cover.

[0016] Figure labeling: 100, lower cover; 110, annular rib; 111, snap-fit ​​part; 200, upper cover; 210, positioning rib; 220, glue inlet; 230, first protruding rib; 240, second protruding rib; 300, middle shell; 310, mounting bracket; 320, button; 330, slot; 400, battery; 410, push switch; 420, motor; 500, cover. Detailed Implementation

[0017] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, so as to make the technical solution of this utility model easier to understand and master. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0018] This embodiment provides a desktop vacuum cleaner, such as Figure 1-5 As shown, it includes a lower cover 100, an upper cover 200, and a middle shell 300. The lower cover 100 is detachably fixed to the middle shell 300 by a rotating snap-fit ​​structure. The upper cover 200 is detachably fixed to the middle shell 300. The upper cover 200 is provided with a circumferential positioning structure so that the upper cover 200 is circumferentially fixed relative to the middle shell 300.

[0019] A circumferential positioning structure is provided on the upper cover 200. This structure restricts the circumferential degree of freedom of the upper cover 200, preventing it from rotating relative to the middle shell 300, thus achieving circumferential fixation of the upper cover 200 relative to the middle shell 300. During the process of disassembling the lower cover 100 to clean debris, when one hand holds the upper cover 200 and the other hand twists the lower cover 100, the circumferential positioning structure prevents the upper cover 200 from rotating relative to the middle shell 300, maintaining a stable relative position between the two. This avoids the situation where the button 320 switch becomes pressed against the upper cover 200 or even embedded inside it due to rotation of the upper cover 200 relative to the middle shell 300, ensuring the normal function of the button 320 switch.

[0020] like Figure 1-5 As shown, the middle shell 300 is provided with an upwardly protruding mounting bracket 310, and a button 320 is provided on the mounting bracket 310. The circumferential positioning structure is a positioning rib 210 located on the side wall of the upper cover 200, and the positioning rib 210 abuts against both sides of the mounting bracket 310. The upwardly protruding mounting bracket 310 on the middle shell 300 is used to mount the button 320, which provides a fixed mounting position and support structure for the button 320. The positioning rib 210 on the side wall of the upper cover 200 serves as a circumferential positioning structure. When the upper cover 200 is installed on the middle shell 300, the positioning rib 210 abuts against both sides of the mounting bracket 310. Since the position of the mounting bracket 310 is fixed, the positioning rib 210 abutting against both sides of the mounting bracket 310 restricts the circumferential movement of the upper cover 200. Because if the top cover 200 attempts to rotate, the positioning rib 210 will be blocked by both sides of the mounting bracket 310, thus preventing rotation and achieving circumferential fixation of the top cover 200 relative to the middle shell 300. The circumferential positioning of the top cover 200 is achieved using the existing mounting bracket 310 on the middle shell 300 for mounting the button 320, eliminating the need for additional complex positioning components. This satisfies the positioning function while fully utilizing the characteristics of the product structure itself, making the overall design more compact and rational. In other optional embodiments, a structure specifically designed to cooperate with the positioning rib 210 can be provided on the middle shell 300, such as a protruding post with a positioning groove, into which the positioning rib 210 is embedded.

[0021] like Figure 1 ,3 As shown in Figure 4, the upper corner of the mounting bracket 310 is either chamfered or rounded. A chamfer involves cutting a beveled angle from the edge, while a rounded corner replaces the edge with a circular arc. Both designs alter the shape of the upper corner of the mounting bracket 310, transforming it from a sharp right angle into a relatively smooth transition. This smooth shape design guides the positioning ribs 210 to smoothly engage with the mounting bracket 310, avoiding obstruction caused by sharp corners. In other optional embodiments, the lower ends of the two positioning ribs 210 can be V-shaped to form a guide structure, facilitating the assembly of the upper cover 200 onto the middle shell 300.

[0022] like Figure 3 , 4 As shown, the middle shell 300 is equipped with a battery 400, a push-button switch 410, and a motor 420. The push-button switch 410 is connected to the button 320. The motor 420 is connected to the battery 400 and the push-button switch 410 via wires. A cover 500 is also fixed on the middle shell 300, covering the push-button switch 410. The battery 400 is the energy source for the entire device, providing power for the motor 420. The push-button switch 410 controls the on / off state of the circuit. By connecting to the button 320, pressing the button 320 triggers the push-button switch 410 to close or open. The motor 420 is the core actuator for realizing the vacuuming function, generating suction when the circuit is connected. The cover 500 is fixed on the middle shell 300 and covers the push switch 410. This is based on the protection of the push switch 410 and the overall structural layout. The cover 500 forms a relatively closed space to accommodate the push switch 410 and prevent it from being interfered with or damaged by external factors.

[0023] like Figure 3 As shown, the cover 500 covers the connection point between the wire and the motor 420. The wire and motor 420 are fixedly connected by solder, and the cover 500 blocks the solder. During the use, handling, or storage of the equipment, the connection point may be subjected to external forces such as collisions and compression. The cover 500 provides physical protection for the connection point between the wire and the motor 420, buffering the impact of external forces, preventing the solder from falling off or breaking due to force, avoiding loosening or disconnection of the connection between the wire and the motor 420, and ensuring the reliability of the mechanical connection. When replacing the battery 400, the wire may be pulled. The cover 500 can prevent the wire from being pulled or restrict the range of motion of the wire, reducing damage to the connection point between the wire and the motor 420 due to excessive pulling, and extending the service life of the connection point.

[0024] like Figure 5As shown, the upper cover 200 is integrally molded, and the inner side of the center of the top wall of the upper cover 200 has a glue inlet 220. A well-designed glue inlet 220 ensures that the molten plastic is fully and evenly filled in the mold cavity, avoiding defects such as material shortages, air bubbles, and shrinkage cavities, thus guaranteeing both the appearance and internal quality of the upper cover 200. The glue inlet 220 is located on the inner side to prevent it from affecting the appearance of the upper cover 200.

[0025] like Figure 5 As shown, the inner side of the top wall of the upper cover 200 has a downwardly protruding first rib 230, which abuts against the upper end of the motor 420. The first rib 230 abuts against the upper end of the motor 420, which restricts the vertical movement of the motor 420, preventing the motor 420 from shifting upwards or downwards due to vibration or external force during use. This ensures the relative stability of the position of the motor 420 and the middle shell 300, and guarantees the normal operation of the circuit connection and mechanical transmission.

[0026] like Figure 5 As shown, the inner side of the top wall of the upper cover 200 has a downwardly protruding second rib 240, which abuts against the battery 400. The second rib 240 abuts against the battery 400, effectively restricting the vertical movement of the battery 400 and preventing it from jumping up or down when subjected to vibrations from the desktop vacuum cleaner or external impacts, ensuring that the battery 400 is always in the correct installation position and maintaining normal connection with the circuit. The first rib 230 and the second rib 240 increase the thickness and strength of the inner side of the top wall of the upper cover 200, making the upper cover 200 less prone to deformation under external forces, thus improving the overall structural stability and reliability of the upper cover 200.

[0027] like Figure 3-5 As shown, the second rib 240 is annular. The battery 400 includes two dry cell batteries, which are located on both sides of the motor 420. The second rib 240 simultaneously abuts against both dry cell batteries. The annular second rib 240 simultaneously abuts against the two dry cell batteries utilizes the continuity of the annular structure to simultaneously fix the two batteries 400 through an integral rib structure, reducing the risk of deformation of the second rib 240 and improving the stability of the contact with the battery 400. In other optional embodiments, the battery 400 can also be a rechargeable battery.

[0028] like Figure 1As shown, the rotating snap-fit ​​structure includes a snap-fit ​​groove 330 located on the side wall of the middle shell 300. The snap-fit ​​groove 330 includes an installation port with an opening facing the direction of the opening and a laterally extending fixing groove. The bottom of the lower cover 100 has an annular rib 110 spaced apart from the side wall of the lower cover 100. The lower end of the middle shell 300 is located inside the annular rib 110. The inner side of the annular rib 110 has a snap-fit ​​part 111, which is snapped into the snap-fit ​​groove 330. By setting the snap-fit ​​part 111 on the annular rib 110, a channel is ensured between the side wall of the middle shell 300 and the side wall of the lower cover 100, facilitating airflow from the air outlet formed between the upper end of the lower cover 100 and the middle shell 300.

[0029] The above description is merely a specific embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes, but is not limited to, the content described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of the utility model will be included within the scope of the claims.

Claims

1. A desktop vacuum cleaner with an anti-rotation top cover, comprising a lower cover (100), an upper cover (200), and a middle shell (300), wherein the lower cover (100) is detachably fixed to the middle shell (300) by a rotational snap-fit ​​structure, and the upper cover (200) is detachably fixed to the middle shell (300), characterized in that, The upper cover (200) is provided with a circumferential positioning structure so that the upper cover (200) is circumferentially fixed relative to the middle shell (300).

2. A desktop vacuum cleaner with an anti-rotation top cover according to claim 1, characterized in that, The middle shell (300) is provided with an upwardly protruding mounting bracket (310), and the mounting bracket (310) is provided with a button (320). The circumferential positioning structure is a positioning rib (210) located on the side wall of the upper cover (200), and the positioning rib (210) abuts against both sides of the mounting bracket (310).

3. A desktop vacuum cleaner with an anti-rotation top cover according to claim 2, characterized in that, The upper corner of the mounting bracket (310) is chamfered or rounded.

4. A desktop vacuum cleaner with an anti-rotation top cover according to claim 2, characterized in that, The middle shell (300) is provided with a battery (400), a push switch (410) and a motor. The push switch (410) is connected to the button (320). The motor is connected to the battery (400) and the push switch (410) through a wire. A cover (500) is also fixed on the middle shell (300), and the cover (500) covers the push switch (410).

5. A desktop vacuum cleaner with an anti-rotation top cover according to claim 4, characterized in that, The cover (500) covers the connection point between the wire and the motor.

6. A desktop vacuum cleaner with an anti-rotation top cover according to claim 1, characterized in that, The top cover (200) is integrally formed, and the inner side of the center of the top wall of the top cover (200) has a glue inlet (220).

7. A desktop vacuum cleaner with an anti-rotation top cover according to claim 4, characterized in that, The inner side of the top wall of the upper cover (200) has a first protruding rib (230) that protrudes downward, and the first protruding rib (230) abuts against the upper end of the motor.

8. A desktop vacuum cleaner with an anti-rotation top cover according to claim 4, characterized in that, The inner side of the top wall of the top cover (200) has a downwardly protruding second rib (240), which abuts against the battery (400).

9. A desktop vacuum cleaner with an anti-rotation top cover according to claim 8, characterized in that, The second rib (240) is annular, and the battery (400) includes two dry cell batteries, which are located on both sides of the motor. The second rib (240) abuts against the two dry cell batteries.

10. A desktop vacuum cleaner with an anti-rotation top cover according to claim 1, characterized in that, The rotating snap-fit ​​structure includes a slot (330) on the side wall of the middle shell (300). The slot (330) includes an installation port with an opening facing the direction of the opening and a fixing groove extending laterally. The bottom of the lower cover (100) has an annular rib (110) spaced apart from the side wall of the lower cover (100). The lower end of the middle shell (300) is located inside the annular rib (110). The inner side of the annular rib (110) has a snap-fit ​​part (111), which is snapped into the slot (330).

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