Control switch structure and puffing device

Abstract

The utility model discloses a control switch structure and fills and inhales equipment. Control switch structure includes rotary potentiometer, and the rotary potentiometer includes pivot, shaft sleeve and potentiometer shell, and pivot is from the installation hole and is stretched to the outside of equipment casing, still includes outer gasket and intercalation piece, the outer gasket is padded between the installation hole outside of equipment casing and fastening nut, the intercalation piece is inserted in the installation hole inboard of equipment casing, the inboard of intercalation piece and potentiometer shell abut, the outboard of intercalation piece is abutted with outer gasket and equipment casing inner wall simultaneously. The utility model discloses simple and ingenious structure design, on the basis of not changing original equipment casing and installation hole, realizes the effective fixation to rotary switch with outer gasket, intercalation piece cooperation fastening nut, is supported and is leveled to potentiometer shell through intercalation piece, has overcome the difficult problem that rotary switch can not be fixed because of the larger aperture of original installation hole, and installation is simple and convenient, and the assembly effect is good.

Description

Technical Field

[0001] This utility model relates to the field of filling and suction equipment assembly technology, specifically to a control switch structure and a filling and suction equipment. Background Technology

[0002] Inflatable devices, such as air pumps, primarily use atmospheric pressure to inflate inflatable items like cars, electric vehicles, swimming rings, and air mattresses. The principle involves a motor driving a transmission mechanism, which in turn drives a piston rod in a reciprocating motion to achieve inflation. Inflatable devices have gradually become essential electrical appliances in daily life and outdoor activities.

[0003] refer to Figure 1 and Figure 2 To facilitate operation and control, existing equipment housings 1 are typically equipped with mounting holes 2, where rocker switches 3 are installed. Although rocker switches 3 are easy to install, they can only control the start and stop of the motor, not its speed, thus failing to regulate airflow and meet the needs of different customers and usage scenarios.

[0004] To meet customer needs and achieve airflow regulation and control, rocker switch 3 needs to be replaced with a rotary switch. For example... Figure 3 As shown, this rotary switch includes a rotary potentiometer 4, which is fixed on the circuit board 5. The rotary potentiometer 4 is a commonly known component, and its structure includes a rotating shaft 41, a bushing 42, and a potentiometer housing 43. The rotating shaft 41 is rotatably mounted inside the bushing 42, which has external threads for engagement with a nut for fixation. When installing this type of rotary switch, the mounting hole 2 for the rocker switch 3 on the existing equipment housing 1 has a large diameter, while the diameter of the rotating shaft 41 of the rotary potentiometer 4 is small. Simply using washers and nuts is insufficient to effectively fix this rotary switch. Redesigning the mold to produce a new housing suitable for mounting the rotary switch would significantly increase equipment production costs and mold expenses. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a control switch structure that utilizes the mounting holes of the rocker switch to achieve quick installation of the rotary switch and good assembly effect.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is: a control switch structure, including a rotary potentiometer, the rotary potentiometer including a rotating shaft, a bushing, and a potentiometer housing, the rotating shaft being rotatably installed inside the bushing, and a fastening nut being threaded onto the bushing; a mounting hole is provided on the device housing, and the rotating shaft extends from the mounting hole to the outside of the device housing; it also includes an outer gasket and an inner insert, the outer gasket being placed between the outside of the mounting hole of the device housing and the fastening nut; the inner insert being inserted into the inside of the mounting hole of the device housing, the inner surface of the inner insert abutting against the potentiometer housing, and the outer surface of the inner insert simultaneously abutting against the outer gasket and the inner wall of the device housing.

[0007] As a preferred technical solution, the insert has a C-shaped structure.

[0008] As an optional technical solution, the insert is a U-shaped structure.

[0009] As a preferred technical solution, a knob is detachably provided on the rotating shaft.

[0010] This utility model also claims protection for a charging and suction device equipped with the above-described control switch structure, which can realize the adjustment and control of airflow and is easy to operate.

[0011] By adopting the above technical solution, this utility model has at least the following beneficial effects: (1) The structural design is simple and ingenious. Without changing the original equipment housing and mounting holes, the rotary control switch is effectively fixed by using an outer gasket placed on the outside of the mounting holes in the equipment housing and an inner insert placed on the inside of the mounting holes in the equipment housing, together with a fastening nut. The inner insert supports and levels the potentiometer housing, overcoming the problem that the rotary control switch could not be fixed due to the large diameter of the original mounting holes. The insert-type assembly structure is simple and convenient to install and has a good assembly effect.

[0012] (2) It enables the installation of different types of control switches on the same equipment housing and mounting holes, which can meet the different needs and usage scenarios of customers, without the need to design different molds, thus greatly reducing production costs. Attached Figure Description

[0013] The following figures are intended only to illustrate and explain the present invention and do not limit the scope of the present invention. Wherein: Figure 1 This is a structural schematic diagram of the existing equipment housing and mounting holes; Figure 2 This is a schematic diagram of a rocker switch installed on an existing equipment housing; Figure 3 This is a schematic diagram of the structure of a rotary switch in the prior art; Figure 4 This is an exploded structural diagram of an embodiment of the present utility model; Figure 5 This is a schematic diagram of the structure of the insert piece in an embodiment of this utility model; Figure 6 This is a schematic diagram of another type of insert; Figure 7 This is a schematic diagram of the structure of the outer gasket in an embodiment of this utility model; Figure 8 This is a schematic diagram illustrating the effect of the control switch structure being assembled onto an existing equipment housing in an embodiment of this utility model; Figure 9 This is an assembly diagram of the control switch structure in an embodiment of this utility model.

[0014] In the diagram: 1-Equipment housing; 2-Mounting hole; 3-Rocker switch; 4-Rotary potentiometer; 41-Shaft; 42-Sleeve; 43-Polypotentiometer housing; 5-Circuit board; 6-Inner insert; 7-Outer gasket; 8-Fasting nut. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the following detailed description, only certain exemplary embodiments of the present invention are described by way of illustration. Undoubtedly, those skilled in the art will recognize that various modifications can be made to the described embodiments without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

[0016] like Figures 4 to 7 As shown, the control switch structure includes a rotary potentiometer 4, a circuit board 5, an inner insert 6, an outer gasket 7, and a fastening nut 8. The rotary potentiometer 4 is fixed on the circuit board 5. The rotary potentiometer 4 includes a rotating shaft 41, a bushing 42, and a potentiometer housing 43. The rotating shaft 41 is rotatably installed inside the bushing 42, and the fastening nut 8 is threadedly connected to the bushing 42. For aesthetic purposes and ease of operation, a knob can be detachably installed at the top of the rotating shaft 41 by means of insertion or other methods.

[0017] refer to Figure 5 The insert 6 preferably adopts a C-shaped structure. Of course, it can also adopt... Figure 6 The U-shaped structures shown should all fall within the protection scope of this utility model.

[0018] refer to Figure 7 and Figure 8The assembly method of this control switch structure is as follows: First, place the circuit board 5 with the rotary potentiometer 4 fixed inside the equipment housing 1, and extend the rotating shaft 41 of the rotary potentiometer 4 from the mounting hole 2 to the outside of the equipment housing 1; then, put the outer gasket 7 on the bushing 42 and place it on the outside of the mounting hole 2 of the equipment housing 1, and insert the inner insert 6 directly into the inside of the mounting hole 2 of the equipment housing 1; then, screw the fastening nut 8 onto the bushing 42 and rotate to lock it, so that the inner side of the inner insert 6 abuts against the potentiometer housing 43, and the outer side of the inner insert 6 abuts against both the outer gasket 7 and the equipment housing 1. In this way, without changing the original equipment housing and mounting hole, the outer gasket 7, the inner insert 6 and the fastening nut 8 can be used to effectively fix this type of rotary switch. By supporting and leveling the potentiometer housing 43 with the inner insert 6, the problem of not being able to fix this type of rotary switch due to the large diameter of the original mounting hole is overcome. The installation is simple and convenient, and the assembly effect is good.

[0019] This invention enables the installation of rotary switches using the mounting holes of the original rocker switch, which can meet different customer needs and usage scenarios, eliminates the need to design different molds, and greatly reduces production costs.

[0020] The above description is merely an illustrative embodiment of this utility model and is not intended to limit the scope of this utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of this utility model should fall within the protection scope of this utility model.

Claims

1. A control switch structure, comprising a rotary potentiometer, the rotary potentiometer comprising a rotating shaft, a bushing, and a potentiometer housing, the rotating shaft being rotatably mounted within the bushing, the bushing being threaded with a fastening nut; a mounting hole is provided on the housing, the rotating shaft extending from the mounting hole to the outside of the housing; characterized in that: It also includes an outer gasket and an inner insert. The outer gasket is placed between the outside of the mounting hole of the equipment housing and the fastening nut. The inner insert is inserted into the inside of the mounting hole of the equipment housing. The inner side of the inner insert abuts against the potentiometer housing, and the outer side of the inner insert abuts against both the outer gasket and the inner wall of the equipment housing.

2. The control switch structure as described in claim 1, characterized in that: The insert has a C-shaped structure.

3. The control switch structure as described in claim 1, characterized in that: The insert has a U-shaped structure.

4. The control switch structure as described in claim 1, characterized in that: A knob is detachably mounted on the shaft.

5. A filling and suction device, including a device housing, characterized in that: The device housing is equipped with a control switch structure as described in any one of claims 1 to 3.

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