Rotary Switch

Abstract

The utility model discloses a rotary switch, including a control rod, a rotating seat connected to the bottom of the control rod, a pair of contact members arranged opposite to each other at the bottom of the rotating seat, a switch seat arranged below the rotating seat, a plurality of conductive terminals arranged at intervals around the top of the switch seat, and a lifting and adjusting device arranged on the control rod, wherein the control rod can be lifted and moved in the lifting and adjusting device, so that the contact member can stably break contact with the conductive terminal when the control rod is raised. The present application sets a lifting and adjusting device so that the contact member and the conductive terminal can form a stable disconnection by lifting the contact member, in addition to the traditional method of maintaining the interval between the contact member and the conductive terminal by sliding, so that when the rotary switch is not in use, it can be ensured that the rotary switch will not form a path for conduction, thereby avoiding accidental touch in the traditional sliding structure. The contact member and the conductive terminal are connected.

Description

Technical Field

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

[0002] A rotary switch is a switch that controls the on and off of the main contacts by rotating the handle. There are also two structural forms of rotary switches, namely single-pole single-position structure and multi-pole multi-position structure. Single-pole single-position rotary switches are often used together with shaft potentiometers in applications, while multi-pole multi-position rotary switches are mostly used to switch working status circuits.

[0003] Publication number CN117174522A discloses a utility model patent, in which a mating piece is arranged on a side of a cover plate facing the base, and the mating piece has tooth blocks and tooth grooves that are staggeredly distributed around the circumference of a rotating handle. An elastic contact bridge rotates with the rotating handle and slides along the tooth blocks and tooth grooves in turn. The elastic contact bridge has an on state in which it is squeezed by the tooth block and is in contact and connected with a first terminal on the base, and an off state in which it is against the tooth groove and is separated and disconnected from the first terminal. Utility Model Content

[0004] In order to solve the above-mentioned problem, the utility model provides a rotary switch, including a control rod, a rotating seat is connected to the bottom of the control rod, when the control rod can drive the rotating seat to rotate, a pair of contact members are arranged opposite to each other at the bottom of the rotating seat, a switch seat is arranged below the rotating seat, a plurality of conductive terminals are arranged at intervals around the top of the switch seat, and a lifting and adjusting device is also arranged on the control rod, the control rod can be lifted and moved in the lifting and adjusting device, so that its contact members are stably out of contact with the conductive terminals when the control rod is raised.

[0005] Furthermore, the lifting and adjusting device includes a control seat, the control rod passes through the control seat and is connected to the rotating seat and can rotate in the control seat, a limit rod is sleeved on the control rod, and a first limit groove and a second limit groove distributed in height and communicating with each other are arranged on the inner wall of the control seat, and the limit rod can move between the first limit groove and the second limit groove.

[0006] Furthermore, a fixing ring is sleeved on the control rod, the fixing ring is fixedly installed on the top of the control seat, and an axial spring is arranged between the fixing ring and the limiting rod.

[0007] Furthermore, a limiting spring is arranged in the first limiting groove, and the limiting rod is located between the limiting spring and the side wall of the first limiting groove.

[0008] Furthermore, a positioning contact protrudes outwardly from the side wall of the rotating seat, a positioning sleeve is installed outside the rotating seat, the rotating seat can rotate in the positioning sleeve, and a plurality of positioning convex strips are arranged at intervals on the inner wall of the positioning sleeve.

[0009] Furthermore, the positioning contact and the rotating seat are connected to each other via a first spring.

[0010] Furthermore, the contact member and the rotating seat are connected to each other via a second spring.

[0011] Furthermore, a clamping block is arranged at the bottom of the positioning convex strip, an annular groove is arranged at the top of the switch seat, and a notch corresponding to the position of the clamping block is opened on the annular groove.

[0012] Furthermore, a shell is wrapped around the rotating seat and the lifting and adjusting device.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] Compared with the prior art, the present application provides a lifting and adjusting device to enable the contact piece and the conductive terminal to maintain the interval between them by sliding in the traditional way, and also to enable the contact piece to form a stable disconnection with the conductive terminal by lifting, so that when the rotary switch is not in use, it can be ensured that it will not form a conductive path at all, thereby avoiding the contact piece and the conductive terminal being connected by accidental touch in the traditional sliding structure.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 This is an exploded view of the overall structure of the rotary switch of the utility model;

[0018] Figure 2 This is a structural exploded view of the lifting and lowering adjustment device of the rotary switch of the utility model;

[0019] Figure 3 It is a cross-sectional view of the lifting and lowering adjustment device of the rotary switch of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the rotary seat of the rotary switch of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the switch base of the rotary switch of the utility model;

[0022] Figure 6 It is a structural schematic diagram of the switch base of the rotary switch of the utility model from another angle;

[0023] Figure 7 The utility model is a schematic diagram of the structure of the control base of the rotary switch.

[0024] The reference numerals and names in the figures are as follows:

[0025] Control rod 100, rotating seat 200, contact piece 210, switch seat 300, conductive terminal 310, lifting adjustment device 400, control seat 410, limiting rod 110, first limiting groove 411, second limiting groove 412, fixing ring 120, axial spring 130, limiting spring 413, positioning contact 220, positioning sleeve 230, positioning convex strip 231, first spring 240, second spring 250, block 232, annular groove 320, notch 321, shell 500. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] The present invention is described in more detail. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween.

[0028] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, vertical, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself. In the description of the present invention, it should be noted that the use of words such as "first" and "second" to define components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above words have no special meaning, and therefore cannot be understood as limiting the scope of protection of the present invention. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0029] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in this specification in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0030] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0031] The preferred implementation of the utility model is now further described in conjunction with the accompanying drawings. Figures 1 to 7As shown, the present application provides a rotary switch, including a control rod 100, a rotating seat 200 is connected to the bottom of the control rod 100, when the control rod 100 can drive the rotating seat 200 to rotate, a pair of contact members 210 are arranged opposite to each other at the bottom of the rotating seat 200, a switch seat 300 is arranged below the rotating seat 200, and a plurality of conductive terminals 310 are arranged at intervals around the top of the switch seat 300, and the conductive terminals 310 pass through the switch seat 300 and are electrically connected to an external circuit. Under normal circumstances, when the control rod 100 drives the rotating seat 200 to rotate, the contact members 210 are arranged opposite to each other. 0 respectively contact with the conductive terminal 310, the contact piece 210 is connected with the conductive terminal 310, thereby forming a path with the external circuit. When the control rod 100 drives the rotating seat 200 to make the contact piece 210 not contact with the conductive terminal 310, the contact piece 210 is not connected with the conductive terminal 310, thereby forming a disconnection with the external circuit, thereby forming a switch structure. The control rod 100 is also provided with a lifting and adjusting device 400. The control rod 100 can be lifted and moved in the lifting and adjusting device 400, so that the contact piece 210 is stably disconnected from the conductive terminal 310 when the control rod 100 is lifted. Compared with the prior art, the present application sets the lifting and adjusting device 400 so that the contact piece 210 and the conductive terminal 310 are not only kept at an interval by sliding, but also stably disconnected by lifting the contact piece 210 from the conductive terminal 310, so that when the rotary switch is not in use, it can be ensured that it will not form a path for conduction, thereby avoiding accidental touch in the traditional sliding structure. The contact piece 210 and the conductive terminal 310 are connected to each other.

[0032] On the basis of the above embodiments, Figure 2 , Figure 3 and Figure 7 As shown, the lifting and adjusting device 400 includes a control seat 410, the control rod 100 passes through the control seat 410 and is connected to the rotating seat 200 and can rotate in the control seat 410, a limiting rod 110 is sleeved on the control rod 100, and a first limiting groove 411 and a second limiting groove 412 which are distributed in height and communicate with each other are arranged on the inner wall of the control seat 410, and the limiting rod 110 can move between the first limiting groove 411 and the second limiting groove 412. Specifically, under normal conditions, the limiting rod 110 is located in the first limiting groove 411. When it is necessary to stably disengage the contact piece 210 from the conductive terminal 310 when the control rod 100 is raised, it is necessary to operate the control rod 100 to raise its limiting rod 110 to move from the first limiting groove 411 to the second limiting groove 412.

[0033] On the basis of the above embodiments, Figure 2 , Figure 3 and Figure 7 As shown, a fixing ring 120 is also sleeved on the control rod 100, and the fixing ring 120 is fixedly installed on the top of the control seat 410. An axial spring 130 is arranged between the fixing ring 120 and the limiting rod 110. Under normal conditions, the axial spring 130 is at a slightly compressed length. When the limiting rod 110 moves from the first limiting groove 411 to the second limiting groove 412, the axial spring 130 will be greatly compressed. In this way, when the contact piece 210 needs to keep in contact with the conductive terminal 310 when the control rod 100 is lowered, the axial spring 130 will provide additional elastic force, so that the contact between the contact piece 210 and the conductive terminal 310 is more stable.

[0034] On the basis of the above embodiments, Figure 2 , Figure 3 and Figure 7 As shown, a limit spring 413 is provided in the first limit groove 411, and the limit rod 110 is located between the limit spring 413 and the side wall of the first limit groove 411. When the limit rod 110 rotates too much, the limit spring 413 functions to limit the rotation range of the limit rod 110, so as to avoid repeated conduction and disconnection between the contact piece 210 and the conductive terminal 310 due to accidental touching of the control rod 100 when the contact piece 210 and the conductive terminal 310 are in sliding contact, thereby affecting the stability of the entire external circuit.

[0035] On the basis of the above embodiments, Figure 4 and Figure 5 As shown, a positioning contact 220 protrudes outwardly on the side wall of the rotating seat 200, and a positioning sleeve 230 is installed on the outside of the rotating seat 200. The rotating seat 200 can rotate in the positioning sleeve 230, and a plurality of positioning ridges 231 are arranged at intervals on the inner wall of the positioning sleeve 230. When the control rod 100 drives the rotating seat 200 to rotate in the positioning sleeve 230, friction and sliding are formed between the positioning contact 220 and the positioning ridges 231, so that the control rod 100 can produce a sense of frustration when rotating, thereby further preventing the control rod 100 from rotating due to accidental touch.

[0036] On the basis of the above embodiments, Figure 4 and Figure 5 As shown, the positioning contact 220 and the rotating seat 200 are connected to each other through the first spring 240, so that when the control rod 100 drives the rotating seat 200 to rotate in the positioning sleeve 230, the friction between the positioning contact 220 and the positioning ridge 231 can be made more elastic, thereby reducing the wear between the positioning contact 220 and the positioning ridge 231.

[0037] On the basis of the above embodiments, Figure 4 and Figure 5 As shown, the contact member 210 and the rotating seat 200 are connected to each other through the second spring 250, so that under normal conditions, the contact between the contact member 210 and the conductive terminal 310 can be made more elastic and the friction loss between the two can be reduced.

[0038] On the basis of the above embodiments, Figure 5 and Figure 6 As shown, a block 232 is provided at the bottom of the positioning convex strip 231, and an annular groove 320 is provided at the top of the switch seat 300. A notch 321 corresponding to the position of the block 232 is provided on the annular groove 320. When the rotating seat 200 and the switch seat 300 are assembled together, the block 232 can be inserted into the notch 321, so that the friction between the positioning contact 220 and the positioning convex strip 231 can be avoided to cause the positioning sleeve 230 to rotate.

[0039] On the basis of the above embodiments, Figure 1 As shown, a shell 500 is wrapped outside the rotating base 200 and the lifting and lowering adjustment device 400 , and the shell 500 can prevent external water or dust from entering the rotating base 200 and the lifting and lowering adjustment device 400 .

[0040] The above exemplary embodiments are detailed, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is limited by the appended claims rather than the above description, so it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A rotary switch, comprising a control rod (100), a rotating seat (200) being connected to the bottom of the control rod (100), the control rod (100) being capable of driving the rotating seat (200) to rotate, a pair of contact members (210) being arranged opposite to each other at the bottom of the rotating seat (200), a switch seat (300) being arranged below the rotating seat (200), a plurality of conductive terminals (310) being arranged at intervals around the top of the switch seat (300), characterized in that: A lifting and lowering adjustment device (400) is also provided on the control rod (100), and the control rod (100) can be lifted and lowered in the lifting and lowering adjustment device (400), so that its contact piece (210) is stably out of contact with the conductive terminal (310) when the control rod (100) is lifted.

2. The rotary switch according to claim 1, characterized in that: The lifting and lowering adjustment device (400) comprises a control seat (410), the control rod (100) passes through the control seat (410) and is connected to the rotating seat (200) and can rotate in the control seat (410), a limiting rod (110) is sleeved on the control rod (100), and a first limiting groove (411) and a second limiting groove (412) which are distributed in different heights and communicate with each other are arranged on the inner wall of the control seat (410), and the limiting rod (110) can move between the first limiting groove (411) and the second limiting groove (412).

3. The rotary switch according to claim 2, characterized in that: A fixing ring (120) is also sleeved on the control rod (100), the fixing ring (120) is fixedly mounted on the top of the control seat (410), and an axial spring (130) is provided between the fixing ring (120) and the limiting rod (110).

4. The rotary switch according to claim 2, characterized in that: A limiting spring (413) is arranged in the first limiting groove (411), and the limiting rod (110) is located between the limiting spring (413) and the side wall of the first limiting groove (411).

5. The rotary switch according to claim 1, characterized in that: A positioning contact (220) protrudes outwardly from the side wall of the rotating seat (200), a positioning sleeve (230) is installed outside the rotating seat (200), the rotating seat (200) can rotate inside the positioning sleeve (230), and a plurality of positioning convex strips (231) are arranged at intervals on the inner wall of the positioning sleeve (230).

6. The rotary switch according to claim 5, characterized in that: The positioning contact (220) and the rotating seat (200) are connected to each other via a first spring (240).

7. The rotary switch according to claim 5, characterized in that: The contact piece (210) and the rotating seat (200) are connected to each other via a second spring (250).

8. The rotary switch according to claim 5, characterized in that: A clamping block (232) is provided at the bottom of the positioning convex strip (231), an annular groove (320) is provided at the top of the switch seat (300), and a notch (321) corresponding to the position of the clamping block (232) is provided on the annular groove (320).

9. The rotary switch according to claim 1, characterized in that: A shell (500) is also wrapped around the rotating seat (200) and the lifting and lowering adjustment device (400).

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