Knob switch assembly for electric cleaning machine

Abstract

The utility model relates to the technical field of knob switches of electric cleaning machines, and discloses a knob switch assembly for an electric cleaning machine, which comprises a rear switch box, a front switch box and a switch assembly positioned inside the rear switch box and the front switch box, and a lower alignment convex edge protrudes outwards from the inner edge of one surface of the rear switch box facing the front switch box. According to the knob switch assembly for the electric cleaning machine, the lower alignment convex edge and the upper alignment convex edge are arranged, during installation, rapid positioning combination of the front switch box and the rear switch box can be achieved, the possibility of displacement of the front switch box and the rear switch box is reduced, and subsequent alignment installation of a locking bolt and an internal threaded column is facilitated; meanwhile, the switch assembly can be quickly inserted into the alignment groove through the alignment plate on the outer side, quick installation of the switch assembly and the rear switch box can be achieved, the length of the rotating rod can be correspondingly changed according to different machine types, the selected length range is 5-12 cm, the electric cleaning machine can be matched with the electric cleaning machine with the same rear machine shell and different front machine shells, and the production cost of an enterprise is reduced.

Description

Technical Field

[0001] This utility model relates to the field of rotary switch technology for electric cleaning machines, specifically a rotary switch assembly for electric cleaning machines. Background Technology

[0002] The rotary switch of an electric washer is the core component for controlling the operation of the equipment. It usually integrates functions such as power switch, pressure adjustment knob, and mode switching knob: the power switch controls the start and stop, and some have a lock to prevent accidental touch; the pressure adjustment knob supports stepless or segmented adjustment, from a minimum of about 10-50 bar to a maximum of more than 200 bar, which needs to be matched with the nozzle to adapt to different scenarios (such as car washing, floor descaling, etc.); the mode switching knob of high-end models can select "pulse cleaning", "continuous spray" and "foam mode", the latter of which requires the use of a detergent canister.

[0003] Existing rotary switches for electric cleaning machines do not have a matching flange at the connection between the front and rear switch boxes. Instead, they often use guide posts and guide holes to achieve alignment and installation. In actual operation, it is still necessary to manually lift the front and rear switch boxes and then align the guide posts and guide holes horizontally to assemble them. This not only requires a high level of skill from the assemblers but also results in low alignment efficiency and poor accuracy, making it impractical. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a rotary switch assembly for an electric cleaning machine to solve the problems mentioned in the background.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a rotary switch assembly for an electric cleaning machine, comprising a rear switch box, a front switch box, and a switch assembly located inside the rear and front switch boxes. The rear switch box has a lower alignment flange protruding from its inner edge facing the front switch box, and the front switch box has an upper alignment flange protruding from its outer edge facing the rear switch box. The lower and upper alignment flanges are fastened together. A vertically downward alignment groove is provided inside the rear switch box. An alignment plate is provided on the outside of the component. Rotary rods are rotatably connected inside the rear switch box and the front switch box, located on the outside of the switch assembly. Rotary plates symmetrically distributed about the axis of the rotary rod are fixedly installed on the outside of the rotary rod. A rotary switch is inserted into the top of the rotary rod. An alignment post is fixedly installed below the rotary rod, located at the lower part of the rotating plate. An alignment hole adapted to the alignment post is also opened inside the rear switch box. A sealing ring is provided at the connection between the rotary rod and the front switch box. The rotary plate and the switch assembly are in abutting connection.

[0008] Preferably, the four corners of the inner wall of the rear switch box are fixedly installed with internal threaded posts, and the top of the front switch box is provided with locking bolts with the same number of internal threaded posts. The rear switch box and the front switch box are fixedly installed by internal threaded posts and locking bolts.

[0009] The above technical solution, through the design of internal threaded post and locking bolt, allows the rear switch box and the front switch box to be assembled together without using snap-fit ​​methods, reducing the possibility of separation and improving connection strength.

[0010] Preferably, the lower alignment protrusion and the upper alignment protrusion have the same shape but different sizes, and the inner edge of the lower alignment protrusion is in contact with the outer edge of the upper alignment protrusion.

[0011] Through the above technical solution, by designing the lower alignment protrusion and the upper alignment protrusion to be the same in shape but different in size, the rear switch box and the front switch box can be quickly positioned and combined during the pre-installation process, reducing the possibility of displacement between the two.

[0012] Preferably, there are two identical alignment slots, which are symmetrically distributed on both sides of the switch assembly, and the alignment plate and the alignment slot are plug-in connected.

[0013] The above technical solution, through the design of the alignment slot, enables the rapid installation of the switch assembly and the rear switch box. During operation, simply align the alignment plate on the outside of the switch assembly with the alignment slot and insert it until the alignment plate is fully inserted into the alignment slot to complete the installation, reducing the difficulty of operation and improving the assembly efficiency.

[0014] Preferably, the center lines of the rotary switch, the rotating rod, and the alignment post are located on the same axis, the alignment post is located inside the alignment hole, the alignment post and the alignment hole are rotatably connected, and the length of the rotating rod is in the range of 5CM to 12CM.

[0015] The above technical solution ensures that the rotary switch, rotating rod, and alignment post, all located on the same axis, can rotate the rotating plate via the rotating rod, thereby activating and deactivating the switch assembly.

[0016] Preferably, both the rear switch box and the front switch box are injection molded from ABS plastic, and the corners of the outer walls of both the rear switch box and the front switch box are chamfered.

[0017] The above technical solutions result in lower production costs and easier injection molding of rear and front switch boxes made of ABS plastic.

[0018] Compared with the prior art, the present invention provides a rotary switch assembly for an electric cleaning machine, which has the following advantages:

[0019] 1. The rotary switch assembly for electric cleaning machines is provided with a lower alignment flange and an upper alignment flange. During the pre-installation of the rear switch box and the front switch box, it can realize the quick positioning and combination of the rear switch box and the front switch box, reduce the possibility of displacement between the two, facilitate the subsequent alignment and installation of the locking bolts and the internal threaded post, and reduce the assembly difficulty. At the same time, the switch assembly can also be quickly inserted into the alignment plate and the alignment groove on the outside, which can also realize the quick installation of the switch assembly and the rear switch box.

[0020] 2. The rotary switch assembly for electric cleaning machines uses ABS plastic injection molding for both the rear and front switch boxes, resulting in lower production costs. The length of the rotating rod can be varied according to different machine models, with a range of 5CM to 12CM. This allows it to be used with electric cleaning machines that have the same rear housing but different front housings, eliminating the need to redesign the entire switch assembly and reducing production costs for enterprises. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the half-section structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the alignment plate mounting structure of this utility model. Figure 1 ;

[0025] Figure 5This is a schematic diagram of the alignment plate mounting structure of this utility model. Figure 2 ;

[0026] Figure 6 This is a schematic diagram of the rotating plate installation structure of this utility model;

[0027] Figure 7 This is a schematic diagram of the disassembled structure of the rear switch box and the front switch box of this utility model;

[0028] Figure 8 This is a schematic diagram of the three-dimensional structure of the rotating rod of this utility model;

[0029] Figure 9 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0030] The components are: 1. Rear switch box; 2. Front switch box; 3. Internal threaded post; 4. Locking bolt; 5. Rotary switch; 6. Rotating rod; 7. Rotating plate; 8. Alignment post; 9. Alignment hole; 10. Alignment groove; 11. Switch assembly; 12. Alignment plate; 13. Sealing ring; 14. Lower alignment flange; 15. Upper alignment flange. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Example 1:

[0033] like Figure 1-9As shown, this utility model provides a rotary switch assembly for an electric washer, including a rear switch box 1, a front switch box 2, and a switch assembly 11 located inside the rear switch box 1 and the front switch box 2. The inner edge of the rear switch box 1 facing the front switch box 2 has a lower alignment flange 14 protruding outwards, and the outer edge of the front switch box 2 facing the rear switch box 1 has an upper alignment flange 15 protruding outwards. The lower alignment flange 14 and the upper alignment flange 15 are fastened together. A vertically downward alignment groove 10 is provided inside the rear switch box 1. The outer side of the switch assembly 11... An alignment plate 12 is provided. Inside the rear switch box 1 and the front switch box 2, a rotating rod 6 is rotatably connected to the outside of the switch assembly 11. A rotating plate 7 is fixedly installed on the outside of the rotating rod 6, which is symmetrically distributed about the axis of the rotating rod 6. A rotary switch 5 is inserted into the top of the rotating rod 6. An alignment post 8 is fixedly installed below the rotating rod 6 and below the rotating plate 7. An alignment hole 9 adapted to the alignment post 8 is also provided inside the rear switch box 1. A sealing ring 13 is provided at the connection between the rotating rod 6 and the front switch box 2. The rotating plate 7 and the switch assembly 11 are in abutting connection.

[0034] Example 2:

[0035] like Figure 2-9 As shown, this is an improvement on the previous embodiment.

[0036] Specifically, internally threaded posts 3 are fixedly installed at the four corners of the inner wall of the rear switch box 1, and the top of the front switch box 2 is provided with locking bolts 4 with the same number of internally threaded posts 3. The rear switch box 1 and the front switch box 2 are fixedly installed by internally threaded posts 3 and locking bolts 4. The advantage is that the design of internally threaded posts 3 and locking bolts 4 allows the rear switch box 1 and the front switch box 2 to be assembled together without using a snap-fit ​​method, reducing the possibility of separation and improving the connection strength.

[0037] Example 3:

[0038] like Figure 2-9 As shown, this is an improvement on the previous embodiment.

[0039] Specifically, the lower alignment protrusion 14 and the upper alignment protrusion 15 have the same shape but different sizes. The inner edge of the lower alignment protrusion 14 fits into the outer edge of the upper alignment protrusion 15. The advantage is that, through the design that the lower alignment protrusion 14 and the upper alignment protrusion 15 have the same shape but different sizes, the rear switch box 1 and the front switch box 2 can be quickly positioned and combined during the pre-installation process, reducing the possibility of displacement between the two.

[0040] Example 4:

[0041] like Figure 2-9 As shown, this is an improvement on the previous embodiment.

[0042] Specifically, two identical alignment slots 10 are provided, and the two alignment slots 10 are symmetrically distributed on both sides of the switch assembly 11. The alignment plate 12 is plugged into the alignment slot 10. The advantage is that the design of the alignment slot 10 can realize the quick installation of the switch assembly 11 and the rear switch box 1. During operation, simply align the alignment plate 12 on the outside of the switch assembly 11 with the alignment slot 10 and insert it until the alignment plate 12 is completely inserted into the interior of the alignment slot 10 to complete the installation, reducing the difficulty of operation and improving the assembly efficiency.

[0043] Example 5:

[0044] like Figure 2-9 As shown, this is an improvement on the previous embodiment.

[0045] Specifically, the center lines of the rotary switch 5, the rotating rod 6, and the alignment post 8 are located on the same axis. The alignment post 8 is located inside the alignment hole 9 and is rotatably connected to the alignment hole 9. The length of the rotating rod ranges from 5 cm to 12 cm. The advantage is that the rotary switch 5, the rotating rod 6, and the alignment post 8, which are located on the same axis, ensure that the rotary switch 5 can rotate the rotating plate 7 through the rotating rod 6, thereby touching the switch assembly 11 to open and close.

[0046] Example 6:

[0047] like Figure 2-9 As shown, this is an improvement on the previous embodiment.

[0048] Specifically, both the rear switch box 1 and the front switch box 2 are injection molded from ABS plastic. The corners of the outer walls of both the rear switch box 1 and the front switch box 2 are chamfered. The advantage is that the production cost of the rear switch box 1 and the front switch box 2, which are injection molded from ABS plastic, is lower and they are easier to produce.

[0049] Working principle: In use, first align the alignment plate 12 on the outside of the switch assembly 11 with the alignment groove 10 and insert it until the lower part of the switch assembly 11 is completely inside the rear switch box 1. Then, align the alignment post 8 at the lower end of the rotating rod 6 with the alignment hole 9 and insert it until the lower end of the alignment post 8 is completely inside the alignment hole 9. Then, fit the sealing ring 13 onto the outside of the rotating rod 6. Align the pre-drilled hole on the front switch box 2 with the rotating rod 6 and insert it until the rear switch box 1 contacts the front switch box 2. The lower alignment protrusion 14 and the upper alignment protrusion 15 are engaged. Finally, insert the rotary switch 5 into the top of the rotating rod 6 and tighten the locking bolt 4 by passing it through the pre-drilled hole on the front switch box 2. The overall operation is simple and the assembly is convenient. When using, the length of the rotating rod 6 can be varied according to different models. The selected length range is 5CM to 12CM, which can be used with electric cleaning machines with the same rear housing but different front housings. It does not require redesigning the entire switch assembly 11, thus reducing the production cost of enterprises.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rotary switch assembly for an electric cleaning machine, comprising a rear switch box (1), a front switch box (2), and a switch assembly (11) located inside the rear switch box (1) and the front switch box (2), characterized in that: The rear switch box (1) has a lower alignment protrusion (14) protruding outward from the inner edge of the side facing the front switch box (2), and the front switch box (2) has an upper alignment protrusion (15) protruding outward from the outer edge of the side facing the rear switch box (1). The lower alignment protrusion (14) and the upper alignment protrusion (15) are fastened together. The rear switch box (1) has a vertically downward alignment groove (10) inside. The switch assembly (11) has an alignment plate (12) on the outside. The interior of the rear switch box (1) and the front switch box (2) are located on the outside of the switch assembly (11). A rotating rod (6) with a rotating connection is fixedly installed on the outside of the rotating rod (6) with a rotating plate (7) symmetrically distributed about the axis of the rotating rod (6). A rotary switch (5) is inserted into the top of the rotating rod (6). An alignment post (8) is fixedly installed below the rotating rod (6) at the lower part of the rotating plate (7). An alignment hole (9) adapted to the alignment post (8) is also opened inside the rear switch box (1). A sealing ring (13) is provided at the connection between the rotating rod (6) and the front switch box (2). The rotating plate (7) and the switch assembly (11) are in contact connection.

2. A rotary switch assembly for an electric cleaning machine according to claim 1, characterized in that: The four corners of the inner wall of the rear switch box (1) are fixedly installed with internal threaded posts (3), and the top of the front switch box (2) is provided with locking bolts (4) with the same number of threads as the internal threaded posts (3). The rear switch box (1) and the front switch box (2) are fixedly installed by internal threaded posts (3) and locking bolts (4).

3. A rotary switch assembly for an electric cleaning machine according to claim 1, characterized in that: The lower alignment protrusion (14) and the upper alignment protrusion (15) have the same shape but different sizes, and the inner edge of the lower alignment protrusion (14) is in contact with the outer edge of the upper alignment protrusion (15).

4. A rotary switch assembly for an electric cleaning machine according to claim 1, characterized in that: The alignment slots (10) are provided in two identical positions, and the two alignment slots (10) are symmetrically distributed on both sides of the switch assembly (11). The alignment plate (12) and the alignment slots (10) are connected by plug-in connection.

5. A rotary switch assembly for an electric cleaning machine according to claim 1, characterized in that: The center lines of the rotary switch (5), the rotating rod (6) and the alignment post (8) are on the same axis. The alignment post (8) is located inside the alignment hole (9). The alignment post (8) and the alignment hole (9) are rotatably connected. The length of the rotating rod (6) ranges from 5 cm to 12 cm.

6. A rotary switch assembly for an electric cleaning machine according to claim 1, characterized in that: Both the rear switch box (1) and the front switch box (2) are made of ABS plastic injection molding, and the corners of the outer walls of the rear switch box (1) and the front switch box (2) are all chamfered.

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