Key device

Abstract

The utility model discloses a key device, and relates to the technical field of switches. The switch comprises a shell, a rotating body, a pressing piece, an elastic assembly, a first switch assembly and a second switch. A mounting cavity is formed in the shell, and the rotating body is embedded in the mounting cavity and provided with a through hole. The pressing piece is embedded in the through hole, the elastic assembly is connected with the end of the rotating body, the first switch assembly is in contact with the elastic assembly, and when the rotating body rotates, the elastic assembly is driven to press and touch different positions on the first switch assembly, and different first switch signals are output. The second switch is located in the center of the first switch assembly and makes contact with the elastic assembly, and when the pressing piece is pressed, the elastic assembly makes contact with the second switch in a pressing mode and outputs a second switch signal. Through different combinations of rotation of the rotating body or pressing of the pressing piece, different switch signals are formed to be associated with different regulation and control instructions, the number and the size of the keys can be reduced, and the structural complexity of the key device is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to switch technical field, especially a kind of button device. BACKGROUND

[0002] In daily life, in order to facilitate the working state of some electrical equipment control, generally set up convenient for user operation press button. For example, user presses button, triggers the relevant control instruction of electrical equipment. With the development of intelligent electrical equipment, the corresponding control instruction also gradually increases, the current more common way is that each press button is associated with a control instruction, to meet the control demand by the way of integrating multiple press buttons.

[0003] However, multiple buttons occupy large installation area, and the button device after integration is complex in structure due to the large number of buttons, which is not conducive to the miniaturization development of product. UTILITY MODEL CONTENT

[0004] In view of the increasing control instructions, the need to meet the control demand by the way of integrating multiple press buttons, the problem of large number of buttons, complex structure and not conducive to the miniaturization development of product, the utility model is provided to provide a button device to overcome the above problems or at least partially solve the above problems.

[0005] The utility model provides a button device, the button device includes:

[0006] Shell, a mounting cavity is formed in the shell;

[0007] Rotary body, the rotary body is embedded in the mounting cavity, and a through hole is formed;

[0008] Pressing piece, the pressing piece is embedded in the through hole;

[0009] Elastic assembly, the elastic assembly is located in the mounting cavity, and the end of the rotary body is connected, wherein the elastic assembly and the end of the pressing piece are in contact;

[0010] First switch assembly, the first switch assembly is arranged in the mounting cavity, and is in contact with the elastic assembly, when the rotary body rotates, the elastic assembly is pressed on different positions of the first switch assembly, and different first switch signals are outputted;

[0011] Second switch, the second switch is located at the center of the first switch assembly, and is in contact with the elastic assembly, when the pressing piece is pressed, the elastic assembly is pressed on the second switch, and second switch signal is outputted.

[0012] Optionally, the key device further comprises a ring fixed in the shell and located on the outer surface of the rotating body, wherein the ring is provided with a protrusion inward along the radial direction of the rotating body;

[0013] The rotating body further comprises:

[0014] a body;

[0015] a plurality of clamping teeth distributed around the circumference of the body and extending along the axial direction of the body, wherein the protrusion is engaged with the clamping teeth to form a touch feeling of the rotating body.

[0016] Optionally, the rotating body comprises a limiting part located on the end of the body close to the first switch assembly and extending along the radial direction of the body, wherein:

[0017] the elastic assembly comprises a compression spring located between the body and the first switch assembly and fixedly connected with the limiting part, so as to limit the position between the rotating body and the shell by cooperation of the compression spring and the limiting part.

[0018] Optionally, the rotating body is made of plastic material and fixed with the compression spring by heat melting.

[0019] Optionally, the body, the clamping teeth and the limiting part are of an integrated structure.

[0020] Optionally, the mounting cavity of the shell is further provided with a limiting edge, and a limiting groove is formed on the outer surface of the rotating body, so as to limit the position between the rotating body and the shell by cooperation of the limiting edge and the limiting groove.

[0021] Optionally, the elastic assembly further comprises an elastic sheet located between the pressing part and the second switch and fixedly connected with the second switch, so as to output a second switch signal by pressing the second switch through the elastic sheet when the pressing part is pressed.

[0022] Optionally, the key device further comprises a clamping part provided in the mounting cavity of the shell, wherein the clamping part is clamped with the ring to fix the ring.

[0023] Optionally, the first switch assembly comprises a plurality of first switches, wherein the plurality of first switches are distributed at equal angles with the second switch as the center.

[0024] Optionally, the number of the card teeth is consistent with the number of the first switches.

[0025] Optionally, the key device further comprises a limiting member, which is located in the mounting cavity and fixedly connected with the pressing member, wherein the limiting member is in contact with the end surface of the rotating body to cooperate with the elastic assembly and limit the pressing member in the axial direction of the rotating body.

[0026] Optionally, the key device further comprises a circuit board, which is fixedly connected with the shell and electrically connected with the first switch assembly and the second switch respectively.

[0027] Optionally, the key device further comprises a display screen, which is embedded on the end surface of the pressing member and communicatively connected with the circuit board.

[0028] Compared with the prior art, the utility model discloses a shell, a rotating body, a pressing member, an elastic assembly, a first switch assembly and a second switch. The shell is internally provided with a mounting cavity, the rotating body is embedded in the mounting cavity and is provided with a through hole. The pressing member is embedded in the through hole, the elastic assembly is located in the mounting cavity and is connected with the end of the rotating body, wherein the elastic assembly is in contact with the end of the pressing member. The first switch assembly is arranged in the mounting cavity and is in contact with the elastic assembly. When the rotating body rotates, the elastic assembly is pressed against different positions on the first switch assembly to output different first switch signals. The second switch is located at the center of the first switch assembly and is in contact with the elastic assembly. When the pressing member is pressed, the elastic assembly is pressed against the second switch to output a second switch signal. Therefore, different combinations of the rotation of the rotating body or the pressing of the pressing member can form different switch signal associations with different control instructions. Thus, the number and size of the keys can be reduced, and the structural complexity of the key device can be reduced while meeting the control requirements.

[0029] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, which can be implemented according to the content of the specification, and in order to make the above and other purposes, characteristics and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model is as follows. BRIEF DESCRIPTION OF DRAWINGS

[0030] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments with reference made to the accompanying drawings. The drawings are for purposes of illustration only and are not intended to limit the present application thereto, as the present application can have application in environments beyond those shown or described. Like reference numerals are used to denote like parts throughout the various figures.

[0031] In the drawings:

[0032] Figure 1 is a first exploded structure schematic view of a key device provided by an embodiment of the present application;

[0033] Figure 2 is a first three-dimensional structure schematic view of a key device provided by an embodiment of the present application;

[0034] Figure 3 is a second three-dimensional structure schematic view of a key device provided by an embodiment of the present application;

[0035] Figure 4 is a second exploded structure schematic view of a key device provided by an embodiment of the present application;

[0036] Figure 5 is an axial cross-section structure schematic view of a key device provided by an embodiment of the present application;

[0037] Figure 6 is a radial cross-section structure schematic view of a key device provided by an embodiment of the present application;

[0038] Figure 7 is a structure schematic view of a compression spring and a first switch contact provided by an embodiment of the present application;

[0039] Figure 8 is a structure schematic view between a first switch assembly and a second switch provided by an embodiment of the present application;

[0040] Reference signs: 1, housing; 101, mounting cavity; 2, rotating body; 201, through hole; 202, limiting groove; 21, body; 22, clamping tooth; 23, limiting portion; 3, pressing piece; 4, elastic assembly; 41, compression spring; 42, elastic sheet; 5, first switch assembly; 51, first switch; 6, second switch; 7, annular piece; 71, protrusion; 8, limiting edge; 9, clamping portion; 10, circuit board; 11, display screen. DETAILED DESCRIPTION

[0041] Exemplary embodiments of the present application will be described in greater detail below with reference to the accompanying drawings. While exemplary embodiments of the present application are illustrated, it is understood that the present application can be carried out in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art.

[0042] In daily life, in order to facilitate the control of the working state of some electrical equipment, a press-type key convenient for user operation is generally provided. For example, the user presses the key to trigger a related control instruction for controlling the electrical equipment. With the development of the intelligentization of electrical equipment, the corresponding control instructions also gradually increase, and the current commonly used way is to associate one control instruction with each press-type key, and to meet the control requirements by integrating multiple press-type keys.

[0043] However, multiple keys occupy a large installation area, and the integrated key device has a complex structure due to the large number of keys, which is not conducive to the miniaturization development of products.

[0044] Based on the above technical problems, the present application embodiment is proposed, which can include a shell 1, a rotating body 2, a pressing piece 3, an elastic assembly 4, a first switch assembly 5 and a second switch 6. The shell 1 is provided with an installation cavity 101, the rotating body 2 is embedded in the installation cavity 101, and a through hole 201 is provided. The pressing piece 3 is embedded in the through hole 201, the elastic assembly 4 is located in the installation cavity 101, and the end of the rotating body 2 is connected, wherein the elastic assembly 4 is in contact with the end of the pressing piece 3. The first switch assembly 5 is arranged in the installation cavity 101 and in contact with the elastic assembly 4. When the rotating body 2 rotates, the elastic assembly 4 presses and touches different positions on the first switch assembly 5, and outputs different first switch signals. The second switch 6 is located at the center of the first switch assembly 5 and in contact with the elastic assembly 4. When the pressing piece 3 is pressed, the elastic assembly 4 presses and touches the second switch 6, and outputs a second switch signal. Thus, different combinations of rotation of the rotating body 2 or pressing of the pressing piece 3 can form different switch signals associated with different control instructions, thereby reducing the number and volume of keys and reducing the structural complexity of the key device while meeting the control requirements.

[0045] Reference Figures 1-8The utility model embodiment provides a kind of key device, the key device can include shell 1, rotator 2, pressing piece 3, elastic component 4, first switch component 5 and second switch 6.The shell 1 is opened in one installation cavity 101, the rotator 2 is embedded in the installation cavity 101, and is opened in one through-hole 201.The pressing piece 3 is embedded in the through-hole 201, the elastic component 4 is located in the installation cavity 101, and is connected with the end of the rotator 2, wherein, the elastic component 4 and the end of the pressing piece 3 form contact.The first switch component 5 is arranged in the installation cavity 101, and is in contact with the elastic component 4, when the rotator 2 rotates, the elastic component 4 is pressed to the different positions on the first switch component 5, and different first switch signals are output.The second switch 6 is located at the center of the first switch component 5, and is in contact with the elastic component 4, when the pressing piece 3 is pressed, the elastic component 4 is pressed to the second switch 6, and second switch signal is output.

[0046] In the utility model embodiment, the key device can include shell 1, rotator 2, pressing piece 3, elastic component 4, first switch component 5 and second switch 6. Wherein, the shell 1 is opened in one installation cavity 101, the rotator 2, pressing piece 3, elastic component 4, first switch component 5 and second switch 6 are installed in the installation cavity 101 of the shell 1, the rotator 2 is embedded in the installation cavity 101, and is gap matched with shell 1. The cross-sectional shape of the rotator 2 along its radial direction is circular, so that the rotator 2 can rotate in the installation cavity 101 under the condition of screwing the rotator 2. Wherein, a part of the rotator 2 extends to the outside of the installation cavity 101, so that the user can conveniently screw the rotator 2.

[0047] The rotator 2 is opened in one through-hole 201, the pressing piece 3 is embedded in the through-hole 201, and is gap matched with the rotator 2. In some embodiments, the through-hole 201 is disposed along the central axis of the rotator 2, and the through-hole 201 is circular along the radial cross-sectional shape of the rotator 2, the pressing piece 3 is embedded in the through-hole 201, without affecting the rotation of the rotator 2.

[0048] The elastic component 4 is located in the installation cavity 101 and connected with the end of the rotating body 2, and the elastic component 4 is also in contact with the end of the pressing piece 3. The first switch component 5 and the second switch 6 are respectively in contact with the elastic component 4. The second switch 6 is located at the center of the first switch component 5. That is, the elastic component 4 is connected with the end face of the rotating body 2 and in contact with the pressing piece 3, and the elastic component 4 is in contact with the first switch component 5 and the second switch 6.

[0049] When the rotating body 2 rotates under the action of the screwing force, the rotating body 2 drives the elastic component 4 to rotate synchronously, so as to output different first switch signals by pressing different positions on the first switch component 5. Thus, different control instructions can be associated by different first switch signals output by the rotating body 2 or the combination of different first switch signals.

[0050] When the pressing piece 3 is pressed, the pressing piece 3 increases the contact pressure on the elastic component 4, so as to press the second switch 6 and trigger the second switch 6 to output a second switch signal. For example, different control instructions can also be associated by the number of continuous presses of the second switch 6. Thus, different switch signal associated control instructions can be formed by different combinations of the rotation of the rotating body 2 or the pressing of the pressing piece 3, so as to reduce the number and size of the keys and the structural complexity of the key device on the basis of meeting the control requirements.

[0051] In summary, the utility model discloses a kind of key device, the key device can include shell 1, rotator 2, pressing piece 3, elastic component 4, first switch component 5 and second switch 6. The shell 1 is opened in one installation cavity 101, the rotator 2 is embedded in the installation cavity 101, and is opened in one through-hole 201. The pressing piece 3 is embedded in the through-hole 201, the elastic component 4 is located in the installation cavity 101, and is connected with the end of the rotator 2, wherein, the elastic component 4 and the end of the pressing piece 3 form contact. The first switch component 5 is arranged in the installation cavity 101, and is in contact with the elastic component 4, when the rotator 2 rotates, the elastic component 4 is pressed to the different positions on the first switch component 5, and different first switch signals are output. The second switch 6 is located at the center of the first switch component 5, and is in contact with the elastic component 4, when the pressing piece 3 is pressed, the elastic component 4 is pressed to the second switch 6, and second switch signal is output. So different switch signal association different control instruction can be formed by the different combination of the rotation of the rotator 2 or the pressing of the pressing piece 3, so as to meet the control demand on the basis of reducing the setting number and volume of key, and reduce the structural complexity of key device.

[0052] An alternative utility model embodiment, with reference to Figure 1 、 Figure 4 、 Figure 5 And Figure 6As shown, the key device can include a shell 1, a rotating body 2, a pressing piece 3, an elastic assembly 4, a first switch assembly 5, a second switch 6 and a ring-shaped piece 7. The shell 1 is provided with a mounting cavity 101, the rotating body 2 is embedded in the mounting cavity 101, and a through hole 201 is provided. The pressing piece 3 is embedded in the through hole 201, the elastic assembly 4 is located in the mounting cavity 101, and the end of the rotating body 2 is connected, wherein the elastic assembly 4 is in contact with the end of the pressing piece 3. The first switch assembly 5 is arranged in the mounting cavity 101 and in contact with the elastic assembly 4. When the rotating body 2 rotates, the elastic assembly 4 drives the first switch assembly 5 to press and touch different positions to output different first switch signals. The second switch 6 is located at the center of the first switch assembly 5 and in contact with the elastic assembly 4. When the pressing piece 3 is pressed, the elastic assembly 4 presses the second switch 6 to output a second switch signal. The ring-shaped piece 7 is fixed in the shell 1 and located on the outer surface of the rotating body 2, wherein the ring-shaped piece 7 is provided with a protrusion 71 inward along the radial direction of the rotating body 2. The rotating body 2 further includes a body 21 and a plurality of clamping teeth 22, the plurality of clamping teeth 22 are distributed around the circumference of the body 21 and extend along the axial direction of the body 21, and the protrusion 71 is engaged with the clamping teeth 22 to form the touch feeling of the rotating body 2.

[0053] In the embodiment of the utility model, the key device can include a shell 1, a rotating body 2, a pressing piece 3, an elastic assembly 4, a first switch assembly 5, a second switch 6 and a ring-shaped piece 7. Wherein, the shell 1 is provided with a mounting cavity 101, the rotating body 2, the pressing piece 3, the elastic assembly 4, the first switch assembly 5 and the second switch 6 are all installed in the mounting cavity 101 of the shell 1, the rotating body 2 is embedded in the mounting cavity 101 and gap-fitted with the shell 1. The cross-sectional shape of the rotating body 2 along its radial direction is circular, so that the rotating body 2 can rotate in the mounting cavity 101 when the rotating body 2 is screwed. Part of the rotating body 2 extends out of the mounting cavity 101, so that the user can conveniently screw the rotating body 2.

[0054] A through hole 201 is provided on the rotating body 2, the pressing piece 3 is embedded in the through hole 201 and gap-fitted with the rotating body 2. In some embodiments, the through hole 201 is provided through along the central axis of the rotating body 2, and the cross-sectional shape of the through hole 201 along the radial direction of the rotating body 2 is circular, the pressing piece 3 is embedded in the through hole 201 without affecting the rotation of the rotating body 2.

[0055] The elastic component 4 is located in the mounting cavity 101 and connected with the end of the rotating body 2, and the elastic component 4 is also in contact with the end of the pressing piece 3. The first switch component 5 and the second switch 6 are respectively in contact with the elastic component 4. The second switch 6 is located at the center of the first switch component 5. That is, the elastic component 4 is connected with the end face of the rotating body 2 and in contact with the pressing piece 3, and the elastic component 4 is in contact with the first switch component 5 and the second switch 6.

[0056] When the rotating body 2 rotates under the action of the screwing force, the rotating body 2 drives the elastic component 4 to rotate synchronously, so as to output different first switch signals by pressing different positions on the first switch component 5. Thus, different control instructions can be associated by different first switch signals output by the rotating body 2 or the combination of different first switch signals.

[0057] When the pressing piece 3 is pressed, the pressing piece 3 increases the contact pressure on the elastic component 4, so as to press the second switch 6 and trigger the second switch 6 to output a second switch signal. For example, different control instructions can also be associated by the number of continuous presses of the second switch 6. Thus, different switch signal associated control instructions can be formed by different combinations of the rotation of the rotating body 2 or the pressing of the pressing piece 3, so as to reduce the number and size of the keys and the structural complexity of the key device on the basis of meeting the control requirements.

[0058] The annular piece 7 is fixed in the shell 1 and located on the outer surface (also referred to as the outer periphery) of the rotating body 2. The annular piece 7 is provided with a protrusion 71 inward along the radial direction of the rotating body 2. For example, the annular piece 7 can be made of steel material, and the annular piece 7 and the protrusion 71 are of an integral structure.

[0059] The card tooth 22 can be integrated with the rotating body 2, wherein a plurality of the card tooth 22 is distributed around the circumference of the body 21. For example, the body 21 is circular along its radial cross-sectional shape, and the circumferential distribution can be equiangular distribution with the central axis of the body 21 as the center line. The card tooth 22 is arranged to extend along the axial direction of the body 21, so that the protrusion 71 and the card tooth 22 form engagement in the radial direction of the body 21. During rotation of the rotating body 2, the card tooth 22 rotates synchronously, and when each card tooth 22 passes through the protrusion 71, a large screwing force is required to release the engagement relationship, and the user can feel obvious resistance when screwing the rotating body 2, thereby forming the touch feeling of the rotating body 2. The pressing position of the elastic assembly 4 on the first switch assembly 5 can be distinguished according to the matching relationship of the card tooth 22 and the protrusion 71, so that different first switch signals can be output.

[0060] An optional utility model embodiment, referring to Figure 1 、 Figure 5 and Figure 7 , the rotating body 2 can include a limiting portion 23, the limiting portion 23 is located on the end of the body 21 close to the first switch assembly 5, and is arranged to extend along the radial direction of the body 21. Wherein, the elastic assembly 4 includes a compression spring 41, the compression spring 41 is located between the body 21 and the first switch assembly 5, and is fixedly connected with the limiting portion 23, so as to limit the position between the rotating body 2 and the shell 1 by cooperation of the compression spring 41 and the limiting portion 23.

[0061] In the utility model embodiment, the rotating body 2 includes a limiting portion 23, the limiting portion 23 is arranged on the end of the body 21 close to the first switch assembly 5, and is arranged to extend along the radial direction of the body 21. That is to say, the radial diameter of the limiting portion 23 is greater than the radial diameter of the body 21, so that the limiting portion 23 and the shell 1 can form surface contact along the radial direction of the body 21. Therefore, under the action of the limiting portion 23, the rotating body 2 will not fall off from the mounting cavity 101.

[0062] The elastic component 4 may include a compression spring 41, which is located between the rotating body 2 and the first switch 51. For example, one end face of the compression spring 41 may be fixedly connected to the end face of the rotating body 2, and the other end face of the compression spring 41 may form pressure contact with the first switch assembly 5. Thus, the deformation pressure of the compression spring 41 can be applied to the rotating body 2, preventing the rotating body 2 from shifting axially towards the first switch assembly 5. Furthermore, the relative position between the rotating body 2 and the housing 1 can be defined by the cooperation of the compression spring 41 and the limiting part 23.

[0063] In some optional embodiments, the rotating body 2 can be made of plastic material, which refers to a material processed from a polymer compound such as thermoplastic resin or thermosetting resin with the addition of fillers, plasticizers, lubricants, stabilizers, and other auxiliary materials. It possesses the plasticity and moldability of plastics, as well as the elasticity and flexibility of rubber. The rotating body 2 made of plastic material has a certain structural strength and elasticity. Furthermore, the compression spring 41 and the rotating body 2 can be fixed together by heat fusion. For example, the rotating body 2 also includes a heat-fused column, the compression spring 41 is sleeved on the heat-fused column, and the heat-fused column is melted using a heat-fused head. Under the pressure of the heat-fused head, the molten part of the heat-fused column adheres to the surface of the compression spring 41, and after cooling, the compression spring 41 is fixed by heat fusion.

[0064] In some alternative embodiments, to improve the processing efficiency of the rotating body 2 and reduce its production cost, the body 21, the cleaving teeth 22, and the limiting part 23 can be an integral structure. Correspondingly, the hot melt column and the rotating body 2 can also be an integral structure.

[0065] In one optional embodiment of the utility model, referring to Figure 5 As shown, a limiting edge 8 is also provided in the mounting cavity 101 of the outer shell 1, and a limiting groove 202 is formed on the outer surface of the rotating body 2. The position between the rotating body 2 and the outer shell 1 is defined by the shape matching of the limiting edge 8 and the limiting groove 202.

[0066] In this embodiment of the invention, the limiting edge 8 can be integrally formed with the outer shell 1. A limiting groove 202 is formed on the outer surface of the rotating body 2, so that the relative position of the rotating body 2 and the outer shell 1 can be limited by the shape matching of the limiting edge 8 and the limiting groove 202, such as clearance matching, thereby preventing the rotating body 2 from axially shifting during rotation.

[0067] In some alternative embodiments, in order to facilitate the assembly of the components described in the above utility model embodiments, the shell 1 can adopt a split structure design, and those skilled in the art can determine the specific shell 1 structure according to actual design requirements, which is not limited here.

[0068] An alternative utility model embodiment, referring to Figure 1 and Figure 4 The elastic assembly 4 also includes an elastic sheet 42, which is located between the pressing piece 3 and the second switch 6 and is fixedly connected with the second switch 6, so as to press and touch the second switch 6 through the elastic sheet 42 to output a second switch signal when the pressing piece 3 is pressed.

[0069] In the utility model embodiment, the elastic assembly 4 can also include an elastic sheet 42, for example, the elastic sheet 42 can include but is not limited to a wave steel sheet and the like, and the elastic sheet 42 can be fixed on the second switch 6, so that the second switch 6 is triggered and outputs a second switch signal corresponding to the second switch 6 by increasing the pressing and touching force of the elastic sheet 42 through the pressing piece 3 when the pressing piece 3 is pressed with force.

[0070] An alternative utility model embodiment, referring to Figure 6 The key device also includes a clamping portion 9, which is arranged in the mounting cavity 101 of the shell 1, and the clamping portion 9 is clamped with the annular piece 7 to fix the annular piece 7.

[0071] In the utility model embodiment, the key device can also include a clamping portion 9, which is arranged in the mounting cavity 101 of the shell 1, wherein the clamping portion 9 cooperates with the shell 1 to form a clamping groove with an opening facing the axial direction of the rotating body 2, the annular piece 7 can be firmly clamped on the shell 1 by assembling the annular piece 7 into the clamping groove along the axial direction of the rotating body 2 from the opening, and the clamping portion 9 and the clamping teeth 22 are spaced apart in the radial direction of the rotating body 2. Therefore, the rotation of the rotating body 2 can not be affected,

[0072] In some embodiments, the clamping portion 9 and the shell 1 can be an integral structure. In other embodiments, in order to improve the structural stability of the annular piece 7, the number of clamping portions 9 can be at least two, and those skilled in the art can determine the specific number according to actual test results, for example, the clamping portion 9 can be 2, 3, 4, etc., which is not limited here.

[0073] An alternative utility model embodiment, referring to Figure 1、 Figure 4 and Figure 7 As shown in the figures, the key device can include a shell 1, a rotating body 2, a pressing piece 3, an elastic assembly 4, a first switch assembly 5, and a second switch 6. The shell 1 is provided with a mounting cavity 101, the rotating body 2 is embedded in the mounting cavity 101, and a through hole 201 is provided. The pressing piece 3 is embedded in the through hole 201, the elastic assembly 4 is located in the mounting cavity 101, and the end of the rotating body 2 is connected, wherein the elastic assembly 4 is in contact with the end of the pressing piece 3. The first switch assembly 5 is arranged in the mounting cavity 101 and in contact with the elastic assembly 4. The first switch assembly 5 includes a plurality of first switches 51, wherein the plurality of first switches 51 are equiangularly distributed around the second switch 6.

[0074] When the rotating body 2 rotates, the elastic assembly 4 drives the different positions on the first switch assembly 5 to press and contact, and outputs different first switch signals. The second switch 6 is located at the center of the first switch assembly 5 and in contact with the elastic assembly 4. When the pressing piece 3 is pressed, the elastic assembly 4 presses and contacts the second switch 6, and outputs a second switch signal.

[0075] In the embodiments of the utility model, the key device can include a shell 1, a rotating body 2, a pressing piece 3, an elastic assembly 4, a first switch assembly 5, and a second switch 6. Wherein, the shell 1 is provided with a mounting cavity 101, the rotating body 2, the pressing piece 3, the elastic assembly 4, the first switch assembly 5 and the second switch 6 are all installed in the mounting cavity 101 of the shell 1, the rotating body 2 is embedded in the mounting cavity 101 and gap-fitted with the shell 1. The cross-sectional shape of the rotating body 2 along its radial direction is circular, so that the rotating body 2 can rotate in the mounting cavity 101 when the rotating body 2 is screwed. Part of the rotating body 2 extends out of the mounting cavity 101, so that the user can easily screw the rotating body 2.

[0076] A through hole 201 is provided on the rotating body 2, and the pressing piece 3 is embedded in the through hole 201 and gap-fitted with the rotating body 2. In some embodiments, the through hole 201 is provided along the central axis of the rotating body 2, and the cross-sectional shape of the through hole 201 along the radial direction of the rotating body 2 is circular, the pressing piece 3 is embedded in the through hole 201, and does not affect the rotation of the rotating body 2.

[0077] The elastic component 4 is located in the mounting cavity 101 and connected with the end of the rotating body 2, and the elastic component 4 is also in contact with the end of the pressing piece 3. The first switch component 5 and the second switch 6 are respectively in contact with the elastic component 4. The second switch 6 is located at the center of the first switch component 5. That is, the elastic component 4 is connected with the end face of the rotating body 2 and in contact with the pressing piece 3, and the elastic component 4 is in contact with the first switch component 5 and the second switch 6.

[0078] The first switch component 5 can include a plurality of first switches 51, wherein the plurality of first switches 51 are equiangularly distributed with the second switch 6 as the center. The first switch 51 can be a paster button switch or a tactile switch, etc. The type of the first switch 51 can be determined by the person skilled in the art according to the actual design requirements, which is not limited here. When the rotating body 2 rotates under the action of the screwing force, the rotating body 2 drives the elastic component 4 to rotate synchronously, so as to output different first switch signals by pressing different positions (that is, different first switches 51) on the first switch component 5. Thus, different first switch signals output by the rotating body 2 or the combination of different first switch signals can be used to associate different control instructions.

[0079] In some embodiments, in order to improve the structural stability of the compression spring 41, it is generally required to form two-point pressing with the first switch component 5, for example, the compression spring 41 and the two pressing points formed on the first switch component 5 are in the same straight line. Thus, the corresponding control instructions of the two first switches 51 in the same straight line can be consistent.

[0080] For example, when the number of the first switches 51 is 2N, N different first switch signals can be output when the rotating body 2 rotates to drive the compression spring 41 to press different first switches 51.

[0081] In some embodiments, different first switches 51 can correspond to different numbers. For example, referring to Figure 8As shown, in the case that the number of the first switches 51 is 12, a number password between 1-6 can be set. When the first first switch 51 and the seventh first switch 51 are pressed, it corresponds to the user inputting the password number "1". When the second first switch 51 and the eighth first switch 51 are pressed, it corresponds to the user inputting the password number "2". When the third first switch 51 and the ninth first switch 51 are pressed, it corresponds to the user inputting the password number "3". When the fourth first switch 51 and the tenth first switch 51 are pressed, it corresponds to the user inputting the password number "4". When the fifth first switch 51 and the eleventh first switch 51 are pressed, it corresponds to the user inputting the password number "5". When the sixth first switch 51 and the twelfth first switch 51 are pressed, it corresponds to the user inputting the password number "6".

[0082] In other embodiments, different first switches 51 can correspond to different function instructions. For example, when the first first switch 51 and the seventh first switch 51 are pressed, the corresponding control instruction is to turn on the fan. When the second first switch 51 and the eighth first switch 51 are pressed, the corresponding control instruction is to turn on the motor, etc.

[0083] When the pressing piece 3 is pressed, the pressing piece 3 increases the contact pressure on the elastic assembly 4, so that the second switch 6 can be pressed to trigger the second switch 6 to output a second switch signal. For example, the number of times of continuous pressing of the second switch 6 can also be used to associate different control instructions. For example, pressing the second switch 6 once can correspond to the control instruction of confirmation, and pressing the second switch 6 twice can correspond to the control instruction of cancellation, etc.

[0084] Therefore, different combinations of rotation of the rotating body 2 or pressing of the pressing piece 3 can form different switch signal associations with different control instructions, so that the number and size of the keys can be reduced, and the structural complexity of the key device can be reduced on the basis of meeting the control requirements.

[0085] An optional utility model embodiment, the number of the clamping teeth 22 is consistent with the number of the first switches 51.

[0086] In the embodiment of the utility model, when the user rotates the rotating body 2, the clamping tooth 22 and the annular part 7 form meshing abutment, correspondingly, the compression spring 41 forms pressure contact with the first switch 51, thereby outputting the first switch signal corresponding to the first switch 51. Therefore, when the user feels the touch feeling of dialing, it is determined that the compression spring 41 forms pressure contact with the first switch 51 at this time. Therefore, the number of the first switch 51 is consistent with the number of the clamping tooth 22.

[0087] An optional embodiment of the utility model, referring to Figure 1 , Figure 2 , Figure 3 and Figure 4 , the key device further comprises a circuit board 10, the circuit board 10 is fixedly connected with the shell 1, and is electrically connected with the first switch assembly 5 and the second switch 6 respectively.

[0088] In the embodiment of the utility model, the key device can further comprise a circuit board 10, the circuit board 10 is fixedly connected with the shell 1, for example, the circuit board 10 is fixed on the outer surface of the shell 1, to form structural support for the shell 1 and other components. The circuit board 10 is electrically connected with the first switch assembly 5, and is electrically connected with the second switch 6 respectively, so that the first switch signal of the first switch assembly 5 and the second switch signal of the second switch 6 can be received.

[0089] An optional embodiment of the utility model, referring to Figure 3 and Figure 4 , the key device further comprises a display screen 11, the display screen 11 is embedded on the end surface of the pressing part 3, and is in communication connection with the circuit board 10.

[0090] In the embodiment of the utility model, the display screen 11 can be embedded on the end surface of the pressing part 3 away from the elastic assembly 4, for example, the display screen 11 can be clamped with the pressing part 3, and the display screen 11 is powered by a button cell. The display screen 11 and the circuit board 10 can be in communication connection through a WIFI module or a Bluetooth module, so that the first switch signal and the second switch signal received by the circuit board 10 can be input into the display screen 11 for display.

[0091] Different first switches 51 can correspond to distinguish different numbers. For example, in the case that the number of the first switches 51 is 12, the numbers between 1-6 can be set as the password, etc. When the first first switch 51 and the seventh first switch 51 are pressed, it corresponds to the user inputting the password number "1". When the second first switch 51 and the eighth first switch 51 are pressed, it corresponds to the user inputting the password number "2". When the third first switch 51 and the ninth first switch 51 are pressed, it corresponds to the user inputting the password number "3". When the fourth first switch 51 and the tenth first switch 51 are pressed, it corresponds to the user inputting the password number "4". When the fifth first switch 51 and the eleventh first switch 51 are pressed, it corresponds to the user inputting the password number "5". When the sixth first switch 51 and the twelfth first switch 51 are pressed, it corresponds to the user inputting the password number "6".

[0092] For example, when the user rotates the rotating body 2, presses the first first switch 51, and determines to input the password "1", at this time, the user can choose to press the pressing piece 3 once to press the second switch 6 to determine to input the password "1". When the control panel receives the first switch signal corresponding to the password "1", it can transmit the corresponding first switch signal to the display screen 11, so as to display it on the display screen 11. Alternatively, the user can also choose to press the pressing piece 3 twice in succession to press the second switch 6 twice to determine to cancel the input of the password "1". Then rotate the rotating body 2, press other first switches 51, and re-input a new password. When the control panel receives the first switch signal corresponding to the other number password, it can transmit the corresponding first switch signal to the display screen 11, so as to display the other number password that the user wants to input on the display screen 11. Thus, based on the combination of the pressing piece 3 and the rotating body 2, the input of different passwords of the key device can be realized.

[0093] For another example, different first switches 51 can correspond to distinguish different function instructions. For example, when the first first switch 51 and the seventh first switch 51 are pressed, the corresponding control instruction is to turn on the fan. When the second first switch 51 and the eighth first switch 51 are pressed, the corresponding control instruction is to turn on the motor, etc.

[0094] When the user rotates the rotating body 2 to press the first first switch 51 to determine the input control instruction "turn on the fan", the user can select to press the pressing piece 3 once to press the second switch 6 to determine the input control instruction "turn on the fan", and the control panel can transmit the corresponding first switch signal to the display screen 11 to be displayed on the display screen 11 when the control panel receives the first switch signal corresponding to the control instruction "turn on the fan". Alternatively, the user can select to press the pressing piece 3 twice to press the second switch 6 twice to determine to cancel the input control instruction "turn on the fan". After determining the input control instruction "turn on the fan", the circuit board 10 can drive the fan.

[0095] Therefore, the key device can be applied to a device with multiple control instructions or a device requiring password input, such as an electronic password lock.

[0096] In summary, the key device can include a shell 1, a rotating body 2, a pressing piece 3, an elastic assembly 4, a first switch assembly 5, and a second switch 6. The shell 1 is provided with a mounting cavity 101, the rotating body 2 is embedded in the mounting cavity 101, and a through hole 201 is provided. The pressing piece 3 is embedded in the through hole 201, the elastic assembly 4 is located in the mounting cavity 101, and the end of the rotating body 2 is connected, wherein the elastic assembly 4 is in contact with the end of the pressing piece 3. The first switch assembly 5 is arranged in the mounting cavity 101 and in contact with the elastic assembly 4. When the rotating body 2 rotates, the elastic assembly 4 presses the different positions of the first switch assembly 5 to output different first switch signals. The second switch 6 is located at the center of the first switch assembly 5 and in contact with the elastic assembly 4. When the pressing piece 3 is pressed, the elastic assembly 4 presses the second switch 6 to output a second switch signal. Different combinations of rotation of the rotating body 2 or pressing of the pressing piece 3 can form different switch signals associated with different control instructions, thereby reducing the number and size of the keys and the structural complexity of the key device while meeting the control requirements.

[0097] Each of the embodiments in the specification is described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts of each embodiment can be referred to each other.

[0098] It is readily apparent to those skilled in the art that any combination of the various embodiments described above is possible and therefore any combination of the various embodiments described above is an embodiment of the present application, but due to the limitation of the length of the specification, the specification will not be described here in detail.

[0099] In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the application can be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been described in detail in order to not obscure the understanding of this description.

[0100] Similarly, it is to be understood that the mechanical features of the application can be sub-divided into additional features not specifically described herein, but will be apparent to those skilled in the art in view of this description.

[0101] Moreover, it is to be understood that the combination of features of different embodiments is meant to be within the scope of the application and forms different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

Claims

1. A key device, characterized by, The key device comprises: a shell (1) with an installation cavity (101) formed therein; a rotating body (2) embedded in the installation cavity (101) and having a through hole (201) formed therein; a pressing piece (3) embedded in the through hole (201); an elastic assembly (4) located in the installation cavity (101) and connected with an end of the rotating body (2), wherein the elastic assembly (4) is in contact with an end of the pressing piece (3); a first switch assembly (5) arranged in the installation cavity (101) and in contact with the elastic assembly (4), wherein the rotating body (2) drives the elastic assembly (4) to press different positions on the first switch assembly (5) when rotating, and different first switch signals are outputted; a second switch (6) located at the center of the first switch assembly (5) and in contact with the elastic assembly (4), wherein the elastic assembly (4) presses the second switch (6) when the pressing piece (3) is pressed, and a second switch signal is outputted.

2. The key device according to claim 1, wherein The key device further comprises a ring-shaped piece (7) fixed in the shell (1) and located on the outer surface of the rotating body (2), wherein the ring-shaped piece (7) is provided with a protrusion (71) inward along the radial direction of the rotating body (2). The rotating body (2) further comprises: a body (21); a plurality of clamping teeth (22) distributed around the circumference of the body (21) and extending along the axial direction of the body (21), wherein the protrusion (71) is engaged with the clamping teeth (22) to form the touch feeling of the rotating body (2).

3. The key device according to claim 2, wherein The rotating body (2) comprises a limiting portion (23) located on the end of the body (21) close to the first switch assembly (5) and extending along the radial direction of the body (21). The elastic assembly (4) comprises a compression spring (41) located between the body (21) and the first switch assembly (5) and fixedly connected with the limiting portion (23), so as to limit the position between the rotating body (2) and the shell (1) by cooperation of the compression spring (41) and the limiting portion (23).

4. The key device according to claim 3, wherein The rotating body (2) is made of plastic material and is fixed with the compression spring (41) by heat melting.

5. The key device according to claim 4, wherein The body (21), the clamping teeth (22), and the limiting portion (23) are of an integral structure.

6. The key device of claim 1, wherein The installation cavity (101) of the shell (1) is further provided with a limiting edge (8), and a limiting groove (202) is formed on the outer surface of the rotating body (2), so as to limit the position between the rotating body (2) and the shell (1) by cooperation of the limiting edge (8) and the limiting groove (202).

7. The key device of claim 2, wherein The elastic assembly (4) further comprises an elastic sheet (42) located between the pressing piece (3) and the second switch (6), and the elastic sheet (42) is fixedly connected with the second switch (6) to output a second switch signal by pressing the second switch (6) through the elastic sheet (42) when the pressing piece (3) is pressed.

8. The key device of claim 2, wherein The key device further comprises a clamping part (9) arranged in the mounting cavity (101) of the shell (1), and the clamping part (9) is clamped with the annular part (7) to fix the annular part (7).

9. The key device of claim 2, wherein The first switch assembly (5) comprises a plurality of first switches (51), wherein the plurality of first switches (51) are equiangularly distributed around the second switch (6).

10. The key device of claim 9, wherein The number of the clamping teeth (22) is consistent with the number of the first switches (51).

11. The key device of claim 1, wherein The key device further comprises a limiting part located in the mounting cavity (101) and fixedly connected with the pressing piece (3), wherein the limiting part is in contact with the end surface of the rotating body (2) to limit the pressing piece (3) along the axial direction of the rotating body (2) in cooperation with the elastic assembly (4).

12. The key device of claim 1, wherein The key device further comprises a circuit board (10) fixedly connected with the shell (1) and electrically connected with the first switch assembly (5) and the second switch (6) respectively.

13. The key device of claim 12, wherein The key device further comprises a display screen (11) inlaid on the end surface of the pressing piece (3) and in communication connection with the circuit board (10).

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