Rotary switch

Abstract

The utility model discloses a rotary switch which comprises a base, a transmission structure is installed in the base, a cover is detachably connected to the top of the base, fixing parts extend from the two sides of the transmission structure, pressing plates for pressing the cover are slidably connected to the interiors of the fixing parts, and springs are installed between the pressing plates and the inner walls of the fixing parts. A sliding groove is formed in the top of the fixing part, a fixing piece is slidably connected into the sliding groove, the bottom of the fixing piece is fixed to the pressing plate, fixing holes are formed in the two sides of the top of the fixing piece, and fixing blocks are fixedly connected to the positions, corresponding to the fixing holes, of the top of the cover. The base and the cover can be rapidly connected through the fixing part and the pressing plate, welding is not needed, operation is simple, the percent of pass of products is improved, the fixing piece, the fixing hole and the fixing block are used in cooperation, the position of the pressing plate can be fixed, and the situation that the cover is loosened due to the fact that the pressing plate moves left and right is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of switches, in particular to a rotary switch. Background Technique

[0002] A rotary switch is a basic electromechanical component used to select and switch signal circuits of electronic devices. The traditional rotary switch realizes the transposition operation by manual rotation and is mainly composed of two parts of mechanisms: a skip step and a contact. The skip step mechanism realizes the rotation operation function, and the contact on-off is through the contact mechanism to output different circuit signals, realizing signal switching and control output functions.

[0003] The connection method between the cover and the base of the existing rotary switch is usually welding, and a soldering agent is required during welding. The production method of the assembly line enables workers to only complete the assigned work within a limited time, and the soldering agent is likely to adhere to the switch during the welding process. Content of the Utility Model

[0004] The purpose of the utility model is to provide a rotary switch to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a rotary switch, including a base, a transmission structure is installed inside the base, a cover is detachably connected to the top of the base, fixing parts extend from both sides of the transmission structure, a pressing plate for pressing the cover is slidably connected inside the fixing parts, and a spring is installed between the pressing plate and the inner wall of the fixing parts.

[0006] As a preferred scheme of the utility model, a chute is opened at the top of the fixing part, a fixing piece is slidably connected inside the chute, the bottom of the fixing piece is fixed to the pressing plate, fixing holes are opened on both sides of the top of the fixing piece, and fixing blocks are fixedly connected to the positions corresponding to the fixing holes on the top of the cover.

[0007] As a preferred scheme of the utility model, the fixing hole can be folded by °, and after folding, the fixing block is inserted into the fixing hole.

[0008] As a preferred scheme of the utility model, pressing grooves are opened on both sides of the cover, and the convex strips at the bottom end of the pressing plate are attached to the pressing grooves.

[0009] As a preferred scheme of the utility model, terminals are equidistantly installed on both sides of the base.

[0010] As a preferred scheme of the utility model, an avoidance groove is opened at the bottom of the fixing part.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: By providing a fixing part and a pressing plate, the present utility model can quickly connect the base and the lid, without welding, with simple operation, improving the product qualification rate. Moreover, the cooperation among the fixing piece, the fixing hole and the fixing block can fix the position of the pressing plate, preventing the lid from loosening due to the left - right movement of the pressing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the buckling structure of the fixing piece of the present utility model;

[0013] Figure 2 It is a schematic diagram of the unfolded structure of the fixing piece of the present utility model;

[0014] Figure 3 It is a schematic diagram of the sectional structure of the fixing part of the present utility model;

[0015] Figure 4 For the present utility model Figure 1 The enlarged structure schematic diagram at A in.

[0016] In the figure: 1, base; 2, lid; 3, transmission structure; 4, terminal; 5, fixing part; 6, sliding groove; 7, pressing plate; 8, avoiding groove; 9, spring; 10, fixing piece; 11, fixing hole; 12, fixing block; 13, pressing groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0018] Please refer to Figures 1 to 4 , the present utility model provides a technical solution: A rotary switch, including a base 1, a transmission structure 3 is installed inside the base 1, the transmission structure 3 is made of high - temperature thermoplastic plastic LCP UL94V - 0, the top of the base 1 is detachably connected with a lid 2, the lid 2 is made of silver - nickel stainless steel, the cross - section of the lid 2 coincides with the cross - section of the base 1, both sides of the transmission structure 3 extend with fixing parts 5, the fixing parts 5 and the bottom end of the transmission structure 3 are integrally formed, and the inside of the fixing parts 5 is a hollow structure. A pressing plate 7 for pressing the lid 2 is slidably connected inside the fixing parts 5. One end of the pressing plate 7 away from the fixing parts 5 is an arc surface, and is the same as the edge arc surface of the lid 2. A spring 9 is installed between the pressing plate 7 and the inner wall of the fixing parts 5, and the spring 9 always pushes the pressing plate 7 to protrude from the inside of the fixing parts 5.

[0019] Among them, a chute 6 is provided at the top of the fixing part 5. A fixing piece 10 is slidably connected inside the chute 6. The fixing piece 10 is of a T-shaped structure, and there are creases at the vertical and horizontal intersections and at both ends of the horizontal part. The initial state of the horizontal part is C-shaped. The bottom of the fixing piece 10 is fixed to the pressing plate 7. Fixing holes 11 are provided on both sides of the top of the fixing piece 10. Fixing blocks 12 are fixedly connected to the positions corresponding to the fixing holes 11 on the top of the cover 2. The fixing holes 11 can be folded by 90°, and after folding, the fixing blocks 12 are inserted into the fixing holes 11 to facilitate fixing the position of the pressing plate 7 and prevent the pressing plate 7 from moving left and right.

[0020] Among them, pressing grooves 13 are provided on both sides of the cover 2. The bottom convex strips of the pressing plate 7 are attached to the pressing grooves 13. After the pressing plate 7 is inserted into the pressing grooves 13, the bottom convex strips of the pressing plate 7 press against the bottom of the pressing grooves 13 to prevent the cover 2 from shaking.

[0021] Among them, terminals 4 are equidistantly installed on both sides of the base 1 to facilitate wiring.

[0022] Among them, an avoidance groove 8 is provided at the bottom of the fixing part 5. After the pressing plate 7 is received inside the fixing part 5, the bottom convex strips of the pressing plate 7 can be received into the avoidance groove 8.

[0023] Specifically, during installation, the opening in the middle of the cover 2 is put over the top of the transmission structure 3, and then the cover 2 is pressed downwards so that the pressing plate 7 pushes the spring 9 to contract and the pressing plate 7 is received inside the fixing part 5. Then, after the cover 2 and the base 1 are fitted together, the pressing plate 7 is reset under the elastic force of the spring 9. The pressing plate 7 is inserted into the pressing grooves 13, the convex strips at the bottom of the pressing plate 7 press against the pressing grooves 13, and the horizontal section of the fixing piece 10 is folded into a straight shape, and then folded by 90° so that the fixing piece 10 is buckled with the fixing blocks 12 through the fixing holes 11 at both ends.

[0024] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front part", "center", "both ends", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model.

[0025] In addition, the terms "first", "second", "third", "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third", "fourth" may explicitly or implicitly include at least one of such features.

[0026] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "setting", "connection", "fixation", "swivel connection", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A rotary switch, comprising a base (1), characterized in that: A transmission structure (3) is installed inside the base (1), a lid (2) is detachably connected to the top of the base (1), fixing parts (5) extend from both sides of the transmission structure (3), a pressing plate (7) for pressing the lid (2) is slidably connected inside the fixing parts (5), and a spring (9) is installed between the pressing plate (7) and the inner wall of the fixing parts (5).

2. The rotary switch according to claim 1, characterized in that: A sliding groove (6) is formed at the top of the fixing part (5), a fixing piece (10) is slidably connected inside the sliding groove (6), the bottom of the fixing piece (10) is fixed to the pressing plate (7), fixing holes (11) are formed at both sides of the top of the fixing piece (10), and fixing blocks (12) are fixedly connected to the positions corresponding to the fixing holes (11) at the top of the lid (2).

3. The rotary switch according to claim 2, characterized in that: The fixing hole (11) can be folded by 90°, and after folding, the fixing block (12) is inserted into the fixing hole (11).

4. The rotary switch according to claim 3, characterized in that: Pressing grooves (13) are formed at both sides of the lid (2), and the convex strip at the bottom end of the pressing plate (7) is attached to the pressing grooves (13).

5. A rotary switch according to claim 4, characterized in that: Terminals (4) are equidistantly installed on both sides of the base (1).

6. A rotary switch according to claim 1, characterized in that: An avoidance groove (8) is formed at the bottom of the fixing part (5).

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