CN216084697U - Electronic equipment and combined key device thereof - Google Patents

Abstract

The utility model discloses an electronic device and a combined key device thereof, wherein the combined key device comprises: the keyboard comprises a shell, a combined keycap, a main board and a conducting part; the combined keycap is rotatably arranged relative to the shell; the main board is fixedly arranged on the shell and is provided with a detection part for detecting the steering and rotating speed of the combined keycap and a plurality of conduction parts for conducting with the corresponding control circuits; the conduction part is used for transmitting the pressure acting on the combined keycap to the conduction part so as to conduct the corresponding control circuit. The combined key device provided by the utility model is provided with a plurality of conduction parts in the using process, and can realize control of multiple functions by pressing the combined keycap; related functions can be adjusted by rotating the combined keycap, so that the combined key device has diversified functions; the combined keycap can be used as a pressing key and a rotating key, so that the integration level of the combined key device is improved, and the space occupation is reduced.

Description

Electronic equipment and combined key device thereof

Technical Field

The utility model relates to the technical field of electronic key equipment, in particular to a combined key device. In addition, the utility model also relates to electronic equipment comprising the combined key device.

Background

The existing electronic products basically need to be controlled by using electronic keys, especially the electronic equipment provided with a display screen, and when the electronic equipment is used, a user needs to operate the control keys by observing the content displayed by the display screen, so that the switching of working modes or parameters in the electronic equipment is realized.

In the prior art, control keys on the electronic device are separately arranged, for example, the control keys include a knob and a navigation key, the knob is used for adjusting the volume, the navigation key is used for implementing the navigation function, and the knob and the navigation key are arranged at different positions, which occupies a large space.

In summary, how to provide a multifunctional combination key with a small occupied space is a problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of the above, an object of the present invention is to provide a combined key device, which can realize a key function by pressing a combined key cap to trigger a conducting part, and can also realize a key function by rotating the combined key cap to detect a rotation speed and a rotation direction of the combined key cap, so that the key functions are more diversified, and the combined key cap can be used as both a pressed key and a rotated key, thereby reducing the number of components, improving the integration of the combined key device, and reducing the space occupation.

Another object of the present invention is to provide an electronic device including the above combination key device.

In order to achieve the above purpose, the utility model provides the following technical scheme:

a combination key device comprising:

the shell is provided with a first through hole used for exposing the combined keycap;

the combined keycap is rotatably arranged relative to the shell;

the main board is fixedly arranged on the shell and is provided with a detection part for detecting the steering and rotating speed of the combined keycap and a plurality of conduction parts for conducting with corresponding control circuits;

the conduction part is fixedly arranged on the main board and is used for transmitting pressure acting on the combined keycap to the conduction part so as to enable the corresponding control circuit to be conducted.

Preferably, the combination key cap orientation one side of mainboard is provided with the spiral lifting face, the mainboard is provided with and is used for detecting the spiral lifting face is apart from the distance sensor of the perpendicular distance of mainboard.

Preferably, the combined keycap is provided with a mounting plane, the mounting plane is provided with a reflecting film with a light reflectivity changing regularly along the circumferential direction, and the main board is provided with a light sensor for receiving light reflected by the reflecting film.

Preferably, the combined keycap comprises a keycap main body and a confirmation keycap arranged at the rotation center of the keycap main body.

Preferably, the key cap main part includes first recess, hot melt muscle and second through-hole, confirm the key cap including press the main part, with first recess complex elastic wall and messenger the third through-hole that the hot melt muscle passed, it is just right to press the main part the second through-hole sets up.

Preferably, the combined keycap is provided with an annular second groove, the main board is provided with an elastic thimble, the combined keycap is clamped between the shell and the main board, and the bottom of the second groove is in contact with the end of the elastic thimble.

Preferably, the conducting part comprises a plurality of transfer columns and a connecting part used for being connected to the main board, one end of each transfer column is in contact with the conducting part, and when the combined keycap is pressed, the combined keycap is in contact with the transfer columns.

Preferably, the conduction part is made of soft rubber, the connection part is a multi-section cylindrical assembly, and the main board is provided with a matching hole for the multi-section cylindrical assembly to pass through;

the diameter of the cylinder from the top to the bottom of the multi-section cylinder assembly is gradually increased, and the size of at least two sections of cylinders in the multi-section cylinder assembly is larger than that of the matching hole.

Preferably, an annular groove is formed in the periphery of the adapter column.

An electronic device comprising the combination key device of any one of the above.

In the process of using the combined key device provided by the utility model, the mainboard is provided with the plurality of conducting parts for conducting with the corresponding control circuit, so that when the combined keycap is pressed, the conducting parts can trigger different conducting parts by pressing different positions of the combined keycap, the conducting parts are conducted with the corresponding control circuit, different control functions are realized, and the specific arrangement positions and the arrangement number of the conducting parts are determined according to actual conditions. When the rotary key is needed, the combined keycap can be rotated, the detection part can detect the rotating speed and the steering of the combined keycap in the process of rotating the combined keycap, and relevant functions of the electronic equipment can be adjusted according to the rotating speed and the steering.

Compared with the prior art, the combined key device provided by the utility model is provided with the plurality of conducting parts in the using process, and the control of multiple functions can be realized by pressing different positions of the combined keycap; related functions can be adjusted by rotating the combined keycap, so that the combined key device has diversified functions; the combined keycap can be used as a pressing key and a rotating key, so that the number of parts is reduced, the integration level of the combined key device is improved, and the occupation of space is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is an exploded view of an embodiment of a combination key device according to the present invention;

FIG. 2 is a schematic cross-sectional view of a combination key device according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of an embodiment of a combined keycap provided by the present invention;

FIG. 4 is a schematic view of another angle of the combined keycap of FIG. 3;

FIG. 5 is a schematic partial cross-sectional view of the combination key cap of FIG. 3;

FIG. 6 is a schematic diagram of a confirmation key cap according to the present invention;

FIG. 7 is a schematic diagram of the assembled key cap of FIG. 6 before it is assembled to the assembled key cap of FIG. 3;

FIG. 8 is a schematic diagram of the assembled key cap of FIG. 6 after the key cap is assembled to the assembled key cap of FIG. 3;

FIG. 9 is a schematic structural diagram of a housing according to the present invention;

FIG. 10 is a side view of the assembled keycap mounted to the housing;

FIG. 11 is a front view of the assembled keycap mounted to the housing;

fig. 12 is a schematic structural diagram of a motherboard provided in the present invention;

FIG. 13 is a front view of the main panel of FIG. 12;

FIG. 14 is a schematic view of a resilient thimble of the motherboard shown in FIG. 12;

FIG. 15 is a schematic structural diagram of a conductive portion provided in the present invention;

FIG. 16 is a side view of the conductive portion of FIG. 15;

FIG. 17 is a schematic view of the conductive portion of FIG. 15 mounted on the main board of FIG. 12;

FIG. 18 is a schematic structural diagram of the combined keycap, conducting part and main board.

In FIGS. 1-18:

the key comprises a combined key cap 1, an anti-skid protrusion 11, a second through hole 12, a first groove 13, a hot melting rib 14, a spiral lifting surface 15, a second groove 16, an ear edge 17, a confirmation key cap 2, an elastic wall 21, a third through hole 22, a shell 3, a first through hole 31, a screw hole 32, a main board 4, a key elastic sheet 41, an elastic thimble 42, an elastic telescopic end 421, an installation end 422, a matching hole 43, a screw through hole 44, a distance sensor 45, a conduction part 5, an adapter column 51, a connection part 52, an elongated end 521, a perforation structure 522, a support structure 523, a fastening screw 6 and a hot melting area A.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The key of the utility model is to provide a combined key device, which can realize the key function by pressing the combined key cap to trigger the conduction part and also can realize the key function by rotating the combined key cap by detecting the rotating speed and the rotating direction of the combined key cap, so that the key functions are more diversified, and the combined key cap can be used as a pressed key and a rotated key, thereby reducing the number of the parts, improving the integration level of the combined key device and reducing the space occupation. The other core of the utility model is to provide an electronic device comprising the combined key device.

Please refer to fig. 1-18.

This specific embodiment provides a combination key device, including: the key assembly comprises a shell 3, a combined keycap 1, a main board 4 and a conduction part 5, wherein the shell 3 is provided with a first through hole 31 for exposing the combined keycap 1; the combined keycap 1 is rotatably arranged relative to the shell 3; the main board 4 is fixedly arranged on the shell 3, and the main board 4 is provided with a detection part for detecting the steering and rotating speed of the combined keycap 1 and a plurality of conduction parts for conducting with corresponding control circuits; the conducting part 5 is fixedly arranged on the main board 4, and the conducting part 5 is used for transmitting the pressure acting on the combined keycap 1 to the conducting part so as to conduct the corresponding control circuit.

It should be noted that, during use, the detection portion can detect the rotation speed and the rotation direction of the combined keycap 1, so that during use, the volume, the brightness, and the like can be continuously adjusted by using the combined keycap 1, for example, the volume can be continuously increased during forward rotation, and the volume can be continuously decreased during reverse rotation; of course, the combined keycap 1 can also be applied to the discontinuous adjustment process, for example, in the process of rotating the combined keycap 1 forward, the display screen switches one channel forward every 30 degrees of rotation, and in the process of rotating the combined keycap 1 backward, the display screen switches one channel backward every 30 degrees of rotation, and the like; the combined keycap 1 can also be used in other use modes meeting requirements in the rotating use process, and is determined according to actual conditions.

In the use process, because mainboard 4 is provided with a plurality of conduction portions, pressing the in-process of combination key cap 1, through the different positions of pressing combination key cap 1, alright in order to trigger different conduction portions, realize the control of multiple different functions. The conduction part can be provided with 5 confirming keys respectively corresponding to the middle positions, and the keys on the periphery of the confirming keys, such as the keys on the upper side, the lower side, the left side and the right side, or the keys on the upper side, the lower side, the left side and the right side are added on the basis of the keys on the upper side, the lower side, the upper right side and the lower right side, of course, other arrangement modes can be provided, and the arrangement modes are determined according to actual conditions.

The conduction part 5 is used for transmitting the pressing force to the conduction part in the process of pressing the combined keycap 1, and the conduction part 5 can be arranged as an elastic piece in the process of arranging.

Preferably, the conductive part is provided as a key elastic sheet 41, the key elastic sheet 41 is not conductive to the corresponding control circuit when the combined key top 1 is not initially pressed, and when the combined key top 1 is pressed, the combined key top 1 applies pressure to the conductive part 5, the conductive part 5 transmits the pressure to the key elastic sheet 41, and the key elastic sheet 41 is pressed downward to conduct the key elastic sheet 41 to the corresponding control circuit.

In the using process, the detection part is used for detecting the rotation direction and the rotation speed of the combined keycap 1, and the specific detection part can be a single detection component, can also be a combined structure of a plurality of detection components, and can be any structure capable of detecting the rotation direction and the rotation speed of the combined keycap 1.

In the process of using the combination key device provided by the present embodiment, since the main board 4 is provided with a plurality of conducting portions for conducting with the corresponding control circuit, when the combination key cap 1 is pressed, different conducting portions can be triggered through the conducting portion 5 by pressing different positions of the combination key cap 1, so that the conducting portions are conducted with the corresponding control circuit, thereby realizing different control functions, and the specific setting position and the setting number of the conducting portions need to be determined according to actual conditions. When the rotary key is needed, the combined keycap 1 can be rotated, the detection part can detect the rotating speed and the steering of the combined keycap 1 in the process of rotating the combined keycap 1, and relevant functions of the electronic equipment are adjusted according to the rotating speed and the steering.

Compared with the prior art, the combined key device provided by the embodiment is provided with a plurality of conducting parts in the using process, and the control of various functions can be realized by pressing the combined keycap 1; related functions can be adjusted by rotating the combined keycap 1, so that the combined key device has diversified functions; the combined keycap 1 can be used as a pressing key and a rotating key, so that the number of parts is reduced, the integration level of the combined key device is improved, and the occupation of space is reduced.

On the basis of the above embodiment, a spiral lifting surface 15 may be disposed on one side of the combined keycap 1 facing the main board 4, and the main board 4 is provided with a distance sensor 45 for detecting a vertical distance between the spiral lifting surface 15 and the main board 4. In the use process, the perpendicular distance that spiral lifting face 15 is different from mainboard 4 along the different positions of circumference, distance sensor 45 just sets up spiral lifting face 15, at the in-process of rotating combination key cap 1, the distance between spiral lifting face 15 and the distance sensor 45 can take place real-time the change, distance sensor 45 transmits the distance information who detects to control system, control system can judge turning to and the rotational speed of combination key cap 1 according to the rule of the distance change that distance sensor 45 detected, detect the levogyration or the dextrorotation of key cap through the change of distance size, detect the speed that the operator rotated the key cap through the speed that the distance changes, realize the volume, the regulation of channel etc.

In another embodiment, a mounting plane may be disposed on the combined keycap 1, a vertical distance between the mounting plane and the main board 4 is not changed during the rotation process, the mounting plane is provided with a reflective film whose reflectivity changes regularly along the circumferential direction, and the main board 4 is provided with an optical sensor for receiving light reflected by the reflective film. At the in-process of rotatory combination key cap 1, the light intensity that reflects from the reflectance coating can change, and light sensor transmits the light intensity change information that detects to control system, and control system can judge the rotational speed and the turning to of combination key cap 1 according to the change of light intensity size and the speed of change. Preferably, the reflectivity of the reflective film may be gradually increased from a certain position in the circumferential direction of the mounting plane, and may be continuously increased or may be increased regularly, which is determined according to actual conditions.

On the basis of the above embodiment, the confirmation key cap 2 may be disposed on the combination key cap 1, such that the combination key cap 1 includes a key cap main body and the confirmation key cap 2 disposed at the center of rotation of the key cap main body. The key cap main part includes first recess 13, hot melt muscle 14 and sets up the second through-hole 12 that the central point put, confirms that key cap 2 is including pressing the main part, with first recess 13 complex elastic wall 21 and make the third through-hole 22 that hot melt muscle 14 passed, presses the main part just to second through-hole 12 setting to the messenger presses the main part and can be exposed by second through-hole 12, conveniently to pressing the main part application of force.

As shown in fig. 6, in order to confirm the structure diagram of the key cap 2, the confirmation key cap 2 comprises an elastic wall 21 and a third through hole 22, during the assembling process, the elastic wall 21 of the confirmation key cap 2 is matched with the first groove 13, the hot melting rib 14 is made to pass through the third through hole 22, after the matching is completed, the state before hot melting is shown in fig. 7, the confirmation key cap 2 is fixed together by the hot melting rib 14 in a hot melting manner, and the state after hot melting is shown in fig. 8, wherein a part a is a hot melting area. After the confirmation keycap 2 and the combined keycap 1 are assembled, the confirmation keycap 2 can be pressed through the second through hole 12, and due to the existence of the elastic wall 21, the confirmation keycap 2 can move up and down, so that the key action is realized.

In fig. 6, it is confirmed that the pressing body portion of the key cap 2 is circular, and the second through hole 12 is also circular, and in the process of actual use, the second through hole 12 and the pressing body may be set to other shapes, which is determined according to the actual situation.

In the using process, the confirmation keycap 2 is fixedly connected with the keycap main body, so that in the process of rotating the keycap main body, the confirmation keycap 2 can synchronously rotate along with the keycap main body, the confirmation keycap 2 is arranged at the rotating center of the keycap main body, and the position of the confirmation keycap 2 in the rotating structure can be unchanged.

Preferably, the side surface of the periphery of the combined keycap 1 is provided with an anti-skid bulge 11.

In addition to the above embodiments, the combined key cap 1 may be provided with the annular second groove 16, the main board 4 is provided with the elastic thimble 42, the combined key cap 1 is sandwiched between the housing 3 and the main board 4, and the bottom of the second groove 16 is in contact with the end of the elastic thimble 42.

As shown in fig. 2 and 3, an ear edge 17 is disposed at an edge of the combined keycap 1, and the size of the ear edge 17 is larger than that of the first through hole 31, so as to prevent the combined keycap 1 from falling out of the first through hole 31, the second groove 16 is matched with the elastic thimble 42, and the ear edge 17 is attached to the housing 3 under the elastic force of the elastic thimble 42, so as to fix the combined keycap 1. During the process of rotating the combined keycap 1, the bottom of the second groove 16 slides relative to the elastic thimble 42. In order to reduce the friction force during the rotation, as shown in fig. 14, the elastic thimble 42 includes an elastic expansion portion and a mounting end 422, the mounting end 422 is connected with the main body portion of the main board 4, and the end of the elastic expansion end 421 is a partial spherical structure.

The number of the elastic thimbles 42 can be multiple, and the adjacent elastic thimbles 42 are arranged at equal intervals along the circumferential direction corresponding to the second groove 16, so that the stress of the combined keycap 1 is more uniform. Preferably, the elastic thimble 42 may be provided according to a pressing operation of the combination key cap 1. For example, four pressing operations are provided, and one elastic thimble 42 is provided corresponding to each pressing position of the pressing operation, and is provided in one-to-one correspondence with the key elastic pieces 41. Of course, other setting modes are also possible, and are not described herein.

As shown in fig. 9, the housing 3 is provided with a first through hole 31 and a plurality of screw holes 32, and during the assembly, fastening screws 6 are fitted into the screw holes 32 through screw through holes 44 in the main plate 4 to fix the main plate 4.

As shown in fig. 12 to 14, the main board 4 is provided with a plurality of key elastic pieces 41, elastic ejector pins 42 which are annularly arranged and correspond to the positions of the second grooves 16, screw through holes 44 for passing the fastening screws 6, and fitting holes 43 for passing the conductive parts 5. The position of the key elastic sheet 41 may be set as shown in fig. 12, or may be set in other manners.

The conductive part 5 may include a plurality of transfer posts 51 and a connecting part 52 for connecting to the main board 4, one end of the transfer post 51 contacts with the conductive part, and when the combination key cap 1 is pressed, the combination key cap 1 contacts with the transfer posts 51.

The conduction part 5 can be made of soft rubber, and can be made of other materials meeting the requirements, and is determined according to the actual condition.

When the combined keycap 1 is pressed, the combined keycap 1 extrudes the elastic ejector pins 42, the combined keycap 1 contacts with the switching column 51, acting force is applied to the switching column 51, the switching column 51 moves towards the mainboard 4, and the corresponding conduction part on the mainboard 4 is triggered, so that the conduction part is conducted with the corresponding control circuit, and corresponding control is realized. In order to improve the sensitivity of the combination key, an annular groove can be arranged on the periphery of the adapter column 51, so that the adapter column 51 is connected with the main body part of the conduction part 5 through a thin-wall structure, the thin-wall structure is easier to deform, the conduction part can be triggered by applying a small force, and the sensitivity of the combination key device is improved in the using process.

As shown in fig. 15 and 16, the conductive portion 5 may be made of a soft rubber material, the connecting portion 52 is a multi-segment cylindrical assembly, and the main board 4 is provided with a matching hole 43 for allowing the multi-segment cylindrical assembly to pass through; the diameter of the cylinder from the top to the bottom of the multi-section cylinder assembly is gradually increased, and the size of at least two sections of cylinders in the multi-section cylinder assembly is larger than that of the matching hole 43.

As shown in fig. 17, in the process of assembling the conductive part 5 and the main board 4, it is first required to pass the elongated end 521 through the mating hole 43, and continue to pull the elongated end 521 forward until the through hole structure 522 completely passes through the mating hole 43, and the support structure 523 contacts the main board 4, and at the same time, the adapter column 51 just contacts the key elastic sheet 41; the diameter of the perforation structure 522 is slightly larger than the diameter of the matching hole 43, and the perforation structure 522 can be elastically deformed after penetrating into the matching hole 43, so that the perforation structure 522 is tightly matched with the matching hole 43; of course, the connection mode of the conduction part 5 and the main board 4 may be screw connection, bracket connection, etc., which is determined according to actual conditions.

In addition to the above combination key device, the present invention also provides an electronic device including the combination key device disclosed in the above embodiments, and the structure of other parts of the electronic device refers to the prior art and is not described herein again.

It should be noted that the electronic device in the above specific embodiment may be an electronic device with an imaging function, such as a camera, a video recorder, a range finder, or an electronic device without an imaging function, which is determined according to actual situations.

When the electronic equipment is a thermal infrared imager, the thermal infrared imager comprises a shell, an imaging module arranged in the shell and a lens module arranged on the shell. The imaging principle is as follows: the imaging module receives the infrared radiation passing through the lens module and converts the infrared radiation into an image signal to realize an infrared imaging function. During practical application, according to actual need, can also install the display screen on the shell, the display screen is connected with the formation of image module electricity to the infrared image that real-time display formation of image module generated.

The combined key device is arranged on the shell, a user can realize the switching and adjustment of the imaging mode, the imaging parameters and other settable parameters of the electronic equipment by operating the combined key device, and the display screen can display a control interface corresponding to the knob key. In addition, an additional module can be arranged on the electronic equipment, and the combined key device can be arranged on the additional module.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. Any combination of all the embodiments provided by the present invention is within the scope of the present invention, and will not be described herein.

The electronic device and the combined key device thereof provided by the utility model are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims (10)

1. A combination key device, comprising:

a housing (3) provided with a first through hole (31) for exposing the combined keycap (1);

the combined keycap (1) is rotatably arranged relative to the shell (3);

the main board (4) is fixedly arranged on the shell (3), and the main board (4) is provided with a detection part for detecting the steering and rotating speed of the combined keycap (1) and a plurality of conduction parts for conducting with a corresponding control circuit;

the conduction part (5) is fixedly arranged on the main board (4), and the conduction part (5) is used for transmitting the pressure acting on the combined keycap (1) to the conduction part so as to conduct the corresponding control circuit.

2. A combination key device according to claim 1, characterized in that the side of the combination key cap (1) facing the main board (4) is provided with a spiral lifting surface (15), and the main board (4) is provided with a distance sensor (45) for detecting the vertical distance of the spiral lifting surface (15) from the main board (4).

3. A combined key device according to claim 1, wherein the combined key cap (1) is provided with a mounting plane, the mounting plane is circumferentially provided with a reflective film with a regular change of light reflectivity, and the main board (4) is provided with a light sensor for receiving light reflected by the reflective film.

4. A combination key device according to any of claims 1-3, wherein the combination key cap (1) comprises a key cap body and a confirmation key cap (2) arranged at the centre of rotation of the key cap body.

5. A combination key device according to claim 4, wherein the key cap body comprises a first recess (13), a heat-fusible rib (14) and a second through hole (12), and the confirmation key cap (2) comprises a pressing body disposed opposite to the second through hole (12), an elastic wall (21) fitted to the first recess (13), and a third through hole (22) through which the heat-fusible rib (14) passes.

6. A combined key device according to any one of claims 1-3, characterized in that the combined key cap (1) is provided with a second annular groove (16), the main board (4) is provided with a resilient thimble (42), the combined key cap (1) is sandwiched between the housing (3) and the main board (4), and the bottom of the second groove (16) is in contact with the end of the resilient thimble (42).

7. A combination key device according to any one of claims 1-3, wherein the conducting portion (5) comprises a plurality of transition posts (51) and a connecting portion (52) for connecting to the main board (4), one end of the transition posts (51) is in contact with the conducting portion, and the combination key cap (1) is in contact with the transition posts (51) when the combination key cap (1) is pressed.

8. The combination key device according to claim 7, wherein the conductive portion (5) is made of soft rubber, the connecting portion (52) is a multi-segment cylindrical assembly, and the main board (4) is provided with a fitting hole (43) for the multi-segment cylindrical assembly to pass through;

the diameter of the cylinder from the top to the bottom of the multi-section cylinder assembly is gradually increased, and the size of at least two sections of cylinders in the multi-section cylinder assembly is larger than that of the matching hole (43).

9. A combination key device according to claim 7, characterised in that the adapter post (51) is provided with an annular groove in its outer circumference.

10. An electronic device comprising a combination key device according to any one of claims 1 to 9.

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