Cleaning device

Abstract

The utility model relates to the field of electric appliances, and particularly discloses cleaning equipment. The cleaning equipment comprises a machine body and a switch assembly connected to the machine body, the switch assembly comprises a rocker switch, and the rocker switch comprises a switch body and a rocker capable of rotating to at least two gears relative to the switch body; the switch assembly further comprises a cam part which can rotate relative to the rocker switch, and the periphery of the cam part is provided with a cam surface which is in contact with the rocker so as to drive the rocker to be switched among different gears. The cam surface at least comprises a first surface and a second surface, when the first surface is in contact with the rocker, the rocker is in a first gear, and when the second surface is in contact with the rocker, the rocker is in a second gear. When the switch assembly is used, a user can drive the seesaw to rotate to different gears by controlling the cam member to rotate, the cam member and the seesaw are in surface contact, the cam member can stably and reliably drive the seesaw to rotate to different gears, and the operation of the whole switch assembly is stable and reliable.

Description

Technical Field

[0001] The utility model relates to the field of electrical appliances, in particular to a cleaning device. Background Art

[0002] Existing cleaning devices such as vacuum cleaners are equipped with a switch assembly. Users can control the operating state of the vacuum cleaner by rotating a knob on the switch assembly. Existing switch assemblies often use a boss to trigger a contact switch. The contact between the contact switch and the boss is point contact, which requires high precision of the switch assembly and poor operational stability. Utility Model Content

[0003] The purpose of the utility model is to provide a cleaning device with more stable and reliable switch operation.

[0004] To achieve the above-mentioned object, the present invention provides a cleaning device, comprising a body, a switch assembly connected to the body, the switch assembly comprising a rocker switch, the rocker switch comprising a switch body, and a rocker that can be rotated to at least two positions relative to the switch body;

[0005] The switch assembly further comprises a cam member rotatably arranged relative to the rocker switch, wherein the outer periphery of the cam member has a cam surface contacting the rocker to drive the rocker to switch between different gear positions;

[0006] The cam surface includes at least a first surface and a second surface. When the first surface contacts the seesaw, the seesaw is in a first gear position. When the second surface contacts the seesaw, the seesaw is in a second gear position.

[0007] As a further improvement of the present invention, the cam surface further includes a third surface, and when the third surface contacts the seesaw, the seesaw is in a third gear position.

[0008] As a further improvement of the present invention, the second surface and the third surface are respectively located on both sides of the first surface.

[0009] As a further improvement of the present invention, the second surface and the third surface are symmetrically arranged on the cam member, and the distance between the second surface and the third surface tends to gradually decrease in the direction away from the rotation axis of the cam member, and the rocker has a contact surface in contact with the cam surface, and the contact surface is recessed in the direction away from the rotation axis of the cam member.

[0010] As a further improvement of the present invention, the switch assembly further comprises a housing connected to the body, the cam member being rotatably connected to the housing and at least partially located within the housing;

[0011] The outer periphery of the cam member is further formed with at least two slots arranged along the circumferential direction of the cam member. The switch assembly further comprises an elastic damping member, one end of the elastic damping member in the elastic expansion direction abuts against the housing, and the other end is configured to extend into the slot to abut against the cam member;

[0012] When the cam member rotates, the elastic damping member can enter and exit each of the slots. When the seesaw is in the first gear, the second gear, and the third gear, the elastic damping member extends into the slot and abuts against the cam member.

[0013] As a further improvement of the present invention, the card slot includes a first card slot, a second card slot and a third card slot. When the seesaw is in the first gear, the elastic damping member extends into the first card slot accordingly. When the seesaw is in the second gear, the elastic damping member extends into the second card slot accordingly. When the seesaw is in the third gear, the elastic damping member extends into the third card slot accordingly.

[0014] There are two elastic damping members, which are arranged opposite to each other on both sides of the cam member. There are two first card slots, two second card slots and two third card slots.

[0015] As a further improvement of the present invention, a limiting groove extending along the elastic expansion and contraction direction of the elastic damping member is provided on the housing, and at least a portion of the elastic damping member is located in the limiting groove.

[0016] As a further improvement of the present invention, the elastic damping member includes a compression spring and a contact ball, the contact ball extends into the slot to resist the cam member, the compression spring is located on the side of the contact ball away from the cam member, and its two ends in the elastic expansion and contraction direction respectively resist the contact ball and the shell.

[0017] As a further improvement of the present invention, the switch assembly further includes a knob coaxially connected to the cam member.

[0018] As a further improvement of the present invention, the cleaning device is a vacuum cleaner.

[0019] Beneficial effects:

[0020] When the cleaning device provided by the present invention is in use, the user can drive the seesaw to rotate to different gears by manipulating the rotation of the cam part. There is surface contact between the cam part and the seesaw, and the cam part can stably and reliably drive the seesaw to rotate to different gears. The operation of the entire switch assembly is stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1A schematic front view of a cleaning device provided in one embodiment of the present utility model;

[0022] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure of the switch assembly;

[0023] Figure 3 for Figure 2 An exploded diagram of the switch assembly in FIG.

[0024] Figure 4 for Figure 3 An exploded schematic diagram of the shell in FIG.

[0025] Figure 5 for Figure 3 A rear view schematic diagram of the cam member in FIG.

[0026] Figure 6 for Figure 2 A front view of the switch assembly with some of its structure removed, wherein the rocker is in the first gear position;

[0027] Figure 7 for Figure 2 Another front view of the switch assembly with some of its structure removed, wherein the rocker is in the second gear position;

[0028] Figure 8 for Figure 2 A cross-sectional view of the internal structure of the switch assembly;

[0029] Figure 9 for Figure 2 A cross-sectional view of another internal structure of the switch assembly.

[0030] In the picture:

[0031] 100. Cleaning equipment;

[0032] 10. Body;

[0033] 20. Switch assembly;

[0034] 30. Synchronous socket;

[0035] 1. Rocker switch; 11. Switch body; 12. Rocker; 121. Contact surface;

[0036] 2. Cam member; 21. Cam surface; 211. First surface; 212. Second surface; 213. Third surface; 22. Slot; 221. First slot; 222. Second slot; 223. Third slot; 224. Guide surface;

[0037] 3. Shell; 31. Limiting groove; 32. Outer shell; 33. Inner shell; 331. Perforation;

[0038] 4. Elastic damping element; 41. Compression spring; 42. Contact ball;

[0039] 5. Knob. DETAILED DESCRIPTION

[0040] The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings. However, this embodiment does not limit the present invention, and any modifications to the mechanism, method, or function made by a person skilled in the art based on this embodiment are all within the scope of protection of the present invention.

[0041] Terms used herein to denote relative spatial positions, such as "upper," "lower," "left," "right," "front," and "back," are used for ease of explanation to describe the relationship of one feature relative to another, as shown in the accompanying drawings. It should be understood that, depending on the placement of the product, these terms may be intended to encompass orientations other than those depicted in the drawings and should not be construed as limitations on the claims. Furthermore, the descriptor "horizontal" as used herein does not necessarily mean perpendicular to gravity, although a certain degree of tilt is permitted.

[0042] like Figure 1 As shown, one embodiment of the present invention provides a cleaning device 100, which includes a body 10 and a switch assembly 20 connected to the body 10. A user can control the operating state of the cleaning device 100 by operating the switch assembly 20. The cleaning device 100 can be a vacuum cleaner, particularly a wet / dry vacuum cleaner. Of course, the cleaning device 100 can also be other cleaning devices besides a vacuum cleaner. The following description uses the cleaning device 100 as a vacuum cleaner.

[0043] Continue to combine Figure 2-7 As shown, the switch assembly 20 includes a rocker switch 1, which includes a switch body 11 and a rocker 12 that is rotatable relative to the switch body 11 to at least two positions. To enable the rocker 12 to switch between different positions, the switch assembly 20 also includes a cam member 2 that is rotatable relative to the rocker switch 1. The outer periphery of the cam member 2 has a cam surface 21 that contacts the rocker 12. When the cam member 2 rotates, the cam surface 21 drives the rocker 12 to switch between different positions.

[0044] The cam surface 21 includes at least a first surface 211 and a second surface 212. Rotating the cam member 2 causes either the first surface 211 or the second surface 212 to contact the seesaw 12. When the first surface 211 contacts the seesaw 12, the seesaw 12 is in the first position. When the second surface 212 contacts the seesaw 12, the seesaw 12 is in the second position. Rotating the cam member 2 changes the contact point between the cam surface 21 and the seesaw 12, thereby driving the seesaw 12 to rotate to the corresponding position.

[0045] In this embodiment, the user can drive the rocker 12 to rotate to different gears by manipulating the rotation of the cam member 2. There is surface contact between the cam member 2 and the rocker 12. The cam member 2 can stably and reliably drive the rocker 12 to rotate to different gears, and the operation of the entire switch assembly 20 is stable and reliable.

[0046] In a specific embodiment of the present invention, the cam surface 21 includes a first surface 211, a second surface 212, and a third surface 213. Accordingly, the seesaw 12 can rotate relative to the switch body 11 to a first position, a second position, and a third position. When the cam member 2 is rotated, the first surface 211 of the cam member 2 contacts the seesaw 12, driving the seesaw 12 to rotate to the first position; the second surface 212 of the cam member 2 contacts the seesaw 12, driving the seesaw 12 to rotate to the second position; and the third surface 213 of the cam member 2 contacts the seesaw 12, driving the seesaw 12 to rotate to the third position. Thus, by rotating the cam member 2, the user can rotate the seesaw 12 to three different positions.

[0047] In the vacuum cleaner provided in this embodiment, when the seesaw 12 is in different gears, the circuit connectivity relationship between the various components in the vacuum cleaner and the external power supply will also change. In this way, when the seesaw 12 is in different gears, the working state of the vacuum cleaner is also different. For example, the vacuum cleaner is provided with a vacuum motor (not shown in the figure) that provides power for its vacuuming, and the vacuum cleaner body 10 is also provided with a synchronization socket 30 for powering an external power tool. When the rocker 12 is in the first gear, the vacuum motor is powered off, and the synchronization socket 30 is also powered off. At this time, the vacuum cleaner is in a shutdown state; when the rocker 12 is in the second gear, the vacuum motor is connected to the external power supply, and the synchronization socket 30 is also connected to the external power supply, and the vacuum cleaner is in a synchronized standby state. An external power tool can be connected to the synchronization socket 30, so that the power tool and the vacuum cleaner can work synchronously. When the power tool starts, the vacuum motor also starts, and when the power tool stops, the vacuum motor also stops; when the rocker 12 is in the third gear, the vacuum motor is connected to the external power supply, and the synchronization socket 30 is powered off. At this time, only the vacuum cleaner can work.

[0048] like Figure 5-7 As shown, in this embodiment, the second surface 212 and the third surface 213 are respectively located on both sides of the first surface 211. Figure 6 As shown, the second surface 212 is located on the left side of the first surface 211 and the third surface 213 is located on the right side of the first surface 211. When the rocker 12 needs to be rotated from the first gear to the second gear, the cam member 2 is rotated counterclockwise by a corresponding angle. Figure 7 The figure shows the seesaw 12 in the second gear. It can be imagined that when the seesaw 12 is required to be rotated from the first gear to the third gear, the cam can be rotated clockwise by a corresponding angle. With the above arrangement, the user can quickly switch the seesaw 12 from the first gear to the second gear or the third gear.

[0049] Specifically, the second surface 212 and the third surface 213 are symmetrically arranged on the cam member 2, and the distance between the second surface 212 and the third surface 213 gradually decreases in the direction away from the rotation axis of the cam member 2. That is, the first surface 211, the second surface 212, and the third surface 213 are arranged on the cam member 2 to form a generally trapezoidal structure. The rocker 12 has a contact surface 121 that contacts the cam surface 21. The contact surface 121 is concave, specifically, concave in the direction away from the rotation axis of the cam member 2.

[0050] like Figure 6 As shown, when the seesaw 12 is in the first gear position, the first surface 211 of the cam member 2 contacts the recessed position in the middle of the contact surface 121, so that the seesaw 12 remains in the first gear position. When the seesaw 12 needs to be rotated to the second gear position, the cam member 2 is rotated counterclockwise so that the second surface 212 of the cam member 2 contacts and presses down the raised portion at the left end of the contact surface 121, so that the seesaw 12 can be rotated to the second gear position. Figure 7 FIG shows the situation when the seesaw 12 is in the second gear. It can be imagined that when the seesaw 12 needs to be rotated from the first gear to the third gear, the cam member 2 is rotated clockwise so that the third surface 213 of the cam member 2 contacts and presses down the raised portion at the right end of the contact surface 121.

[0051] It is conceivable that the design of the cam surface 21 is not limited to the one described above, and other designs may also be adopted, as long as it can drive the rocker 12 to rotate to different gears.

[0052] The above description describes a case where the seesaw 12 can rotate to three positions relative to the switch body 11. In other embodiments, the seesaw 12 can be designed to rotate to only two positions relative to the switch body 11. Correspondingly, the cam surface 21 on the cam member 2 also includes only a first surface 211 and a second surface 212. When the first surface 211 contacts the seesaw 12, the seesaw 12 is in the first position, and when the second surface 212 contacts the seesaw 12, the seesaw 12 is in the second position. When a user rotates the cam member 2, the first surface 211 or the second surface 212 contacts the seesaw 12, driving the seesaw 12 to rotate to the first position or the second position.

[0053] In this embodiment, continue to combine Figure 3-5 As shown in Figures 8-9, the switch assembly 20 further includes a housing 3 connected to the body 10. The cam member 2 is rotatably connected to the housing 3 and is at least partially located within the housing 3. In other words, the cam member 2 rotates under the support of the housing 3. The switch body 11 of the rocker switch 1 is fixed relative to the housing 3.

[0054] At least two slots 22 are formed on the outer periphery of the cam member 2 and are arranged in the circumferential direction of the cam member 2. The switch assembly 20 also includes an elastic damping member 4, which can be elastically extended and retracted, and one end of the elastic damping member 4 in the elastic extension direction abuts against the housing 3, and the other end is used to extend into the slot 22 to abut against the cam member 2.

[0055] When the rocker 12 is in different gears, the cam member 2 will also be in different positions accordingly. When the cam member 2 rotates to rotate the rocker 12 from one gear to another, the cam member 2 also rotates from one position to another accordingly. During the rotation of the cam member 2, the elastic damping member 4 can elastically expand and contract to enter and exit each slot 22.

[0056] When the rocker 12 is in the first, second, and third gears, the elastic damping member 4 extends into the retaining slot 22 and abuts the cam member 2. The elastic damping member 4 cooperates with the retaining slot 22 to limit the rotation of the cam member 2, allowing the cam member 2 to remain in a certain position. When the user rotates the cam member 2 to rotate the rocker 12 from one gear to another, the elastic force of the elastic damping member 4 must be overcome, causing the elastic damping member 4 to retract and exit the retaining slot 22 into which it extends. When the rocker 12 is driven by the cam member 2 to shift to another gear, the elastic damping member 4 enters another retaining slot 22, allowing the cam member 2 to remain in another position.

[0057] With the above arrangement, when the seesaw 12 is in the first, second, and third gears, the cam member 2 will remain in the corresponding position under the action of the elastic damping member 4 and will not rotate arbitrarily. When the user needs to rotate the cam member 2 to rotate the seesaw 12 to another gear, the elasticity of the elastic damping member 4 must be overcome. In other words, the elastic damping member 4 will provide the user with a damping feeling when the user rotates the cam member 2, improving the user's operating feel. Moreover, when the seesaw 12 rotates from one gear to another, the elastic damping member 4 will also correspondingly withdraw from one slot 22 and extend into another slot 22. During operation, the user can know the gear switching status of the seesaw 12 by feel.

[0058] In this embodiment, Figure 5 As shown, the slot 22 is roughly V-shaped and includes two guide surfaces 224 located on both sides of the elastic damping member 4. The two guide surfaces 224 are arranged to extend obliquely relative to the elastic expansion and contraction direction of the elastic damping member 4. In this way, when the cam member 2 rotates, the guide surfaces 224 act on the elastic damping member 4 to cause the elastic damping member 4 to contract, thereby allowing the elastic damping member 4 to exit the slot 22.

[0059] The slot 22 includes a first slot 221, a second slot 222 and a third slot 223. When the rocker 12 is in the first position, the elastic damping member 4 extends into the first slot 221 accordingly. When the rocker 12 is in the second position, the elastic damping member 4 extends into the second slot 222 accordingly. When the rocker 12 is in the third position, the elastic damping member 4 extends into the third slot 223 accordingly.

[0060] Specifically, two elastic damping members 4 are provided, and the two elastic damping members 4 are arranged opposite each other on either side of the cam member 2. Correspondingly, two first engaging slots 221, two second engaging slots 222, and two third engaging slots 223 are each provided to cooperate with the two elastic damping members 4. When the rocker 12 is in the first gear position, the two elastic damping members 4 extend into the two first engaging slots 221, respectively. When the rocker 12 is in the second gear position, the two elastic damping members 4 extend into the two second engaging slots 222, respectively. When the rocker 12 is in the third gear position, the two elastic damping members 4 extend into the two third engaging slots 223, respectively.

[0061] The two oppositely arranged elastic damping members 4 provide the user with sufficient and balanced damping feeling when the user rotates the cam member 2, and when the rocker 12 is in the first gear, the second gear and the third gear, the cam member 2 will stay in the corresponding position more stably.

[0062] In this embodiment, six engaging slots 22 are provided, evenly distributed along the circumference of the cam member 2. Thus, a 60° rotation of the cam member 2 changes the gear position of the rocker 12. It is conceivable that by varying the angular difference between the first engaging slot 221, the second engaging slot 222, and the third engaging slot 223 along the circumference of the cam member 2, the rotation angle required by the cam member 2 to drive the rocker 12 to different gear positions can be varied.

[0063] The housing 3 is provided with a limiting groove 31 extending in the elastic expansion and contraction direction of the elastic damping member 4. At least a portion of the elastic damping member 4 is located within the limiting groove 31. The limiting groove 31 maintains the elastic damping member 4 in a predetermined position within the housing 3 and restricts its expansion and contraction to the elastic expansion and contraction direction. As described above, there are two elastic damping members 4, and accordingly, there are also two limiting grooves 31.

[0064] The housing 3 comprises an outer shell 32 connected to the body 10 and an inner shell 33 secured within the outer shell 32. The cam member 2 is rotatably connected to the outer shell 32. The inner shell 33 includes a central through-hole 331 for the cam member 2 to pass through. The two retaining grooves 31 are formed on opposite sides of the inner shell 33. The retaining grooves 31, at their ends in the direction of elastic expansion and contraction of the elastic damping member 4, extend through the walls of the through-hole 31 and the outer wall of the inner shell 33, respectively. When assembling the switch assembly 20, the sleeve 331 is first placed over the cam member 2, the elastic damping member 4 is then inserted into the retaining grooves 31, and the inner shell 33 is then installed into the outer shell 32.

[0065] The elastic damping member 4 specifically includes a compression spring 41 and a contact ball 42. The contact ball 42 extends into the slot 22 to abut the cam member 2. The compression spring 41 is located on the side of the contact ball 42 away from the cam member 2, and its ends in the direction of elastic expansion and contraction respectively abut the contact ball 42 and the housing 3. When the rocker 12 is in the first, second, and third gears, the contact ball 42 extends into the slot 22 and, under the action of the compression spring 41, abuts the cam member 2 to prevent rotation. When the cam member 2 rotates to switch the rocker 12 to a different gear, the compression spring 41 is forced to contract, allowing the contact ball 42 to exit the slot 22. As the cam member 2 rotates, the contact ball 42 rolls on the surface of the cam member 2, resulting in minimal friction between the cam member 2 and the contact ball 42.

[0066] To facilitate the user to rotate the cam member 2, the switch assembly 20 further includes a knob 5 coaxially connected to the cam member 2, which is used to rotate the knob 5 to drive the cam member 2 to rotate, thereby allowing the rocker 12 to rotate to different gears.

[0067] It should be understood that although this specification is described according to embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0068] The above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A cleaning device, comprising a body (10), a switch assembly (20) connected to the body (10), the switch assembly (20) comprising a rocker switch (1), the rocker switch (1) comprising a switch body (11), and a rocker (12) rotatable to at least two positions relative to the switch body (11), characterized in that: The switch assembly (20) further comprises a cam member (2) rotatably arranged relative to the rocker switch (1), wherein the outer periphery of the cam member (2) has a cam surface (21) that contacts the rocker (12) for driving the rocker (12) to switch between different gear positions; The cam surface (21) comprises at least a first surface (211) and a second surface (212); when the first surface (211) contacts the seesaw (12), the seesaw (12) is in a first gear position; when the second surface (212) contacts the seesaw (12), the seesaw (12) is in a second gear position.

2. The cleaning device according to claim 1, characterized in that The cam surface (21) further includes a third surface (213); when the third surface (213) contacts the seesaw (12), the seesaw (12) is in a third gear position.

3. The cleaning device according to claim 2, characterized in that The second surface (212) and the third surface (213) are respectively located on both sides of the first surface (211).

4. The cleaning device according to claim 3, characterized in that The second surface (212) and the third surface (213) are symmetrically arranged on the cam member (2), and the distance between the second surface (212) and the third surface (213) tends to gradually decrease in a direction away from the rotation axis of the cam member (2). The seesaw (12) has a contact surface (121) in contact with the cam surface (21), and the contact surface (121) is recessed in a direction away from the rotation axis of the cam member (2).

5. The cleaning device according to claim 2, characterized in that The switch assembly (20) further comprises a housing (3) connected to the body (10), and the cam member (2) is rotatably connected to the housing (3) and is at least partially located within the housing (3); The outer periphery of the cam member (2) is further formed with at least two slots (22) arranged along the circumferential direction of the cam member (2); the switch assembly (20) further comprises an elastic damping member (4); one end of the elastic damping member (4) in the elastic expansion and contraction direction abuts against the housing (3), and the other end is used to extend into the slot (22) to abut against the cam member (2); When the cam member (2) rotates, the elastic damping member (4) can enter and exit each of the slots (22); when the seesaw (12) is in the first gear, the second gear, and the third gear, the elastic damping member (4) extends into the slot (22) and abuts against the cam member (2).

6. The cleaning device according to claim 5, characterized in that The card slot (22) comprises a first card slot (221), a second card slot (222) and a third card slot (223); when the seesaw (12) is in the first gear position, the elastic damping member (4) correspondingly extends into the first card slot (221); when the seesaw (12) is in the second gear position, the elastic damping member (4) correspondingly extends into the second card slot (222); when the seesaw (12) is in the third gear position, the elastic damping member (4) correspondingly extends into the third card slot (223); Two elastic damping members (4) are provided, and the two elastic damping members (4) are arranged opposite to each other on both sides of the cam member (2), and two first card slots (221), two second card slots (222), and two third card slots (223) are provided.

7. The cleaning device according to claim 5, characterized in that The housing (3) is provided with a limiting groove (31) extending along the elastic expansion and contraction direction of the elastic damping member (4), and at least a portion of the elastic damping member (4) is located in the limiting groove (31).

8. The cleaning device according to claim 5, characterized in that The elastic damping member (4) comprises a compression spring (41) and a contact ball (42); the contact ball (42) extends into the slot (22) to abut against the cam member (2); the compression spring (41) is located on a side of the contact ball (42) away from the cam member (2), and its two ends in the elastic expansion and contraction direction respectively abut against the contact ball (42) and the housing (3).

9. The cleaning device according to claim 1, characterized in that The switch assembly (20) further comprises a knob (5) coaxially connected to the cam member (2).

10. The cleaning device according to claim 1, characterized in that The cleaning device is a vacuum cleaner.

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