CN112635226B

CN112635226B - Rotary key and wearable device with same

Info

Publication number: CN112635226B
Application number: CN202011438643.6A
Authority: CN
Inventors: 黄雷; 李林森
Original assignee: Goertek Techology Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2022-11-22
Anticipated expiration: 2040-12-10
Also published as: CN112635226A; WO2022121632A1

Abstract

The invention discloses a rotary key, which comprises a barrel fixedly connected with an equipment shell, a keycap capable of sliding relative to the barrel, and a fixed support slidably connected with the barrel, wherein the sliding direction of the fixed support relative to the barrel is consistent with the sliding direction of the keycap relative to the barrel, the fixed support and the barrel keep relatively static in the rotating direction of the keycap, the keycap is covered outside the fixed support, and an elastic piece used for pushing the fixed support to further push the keycap to slide and reset is arranged between the fixed support and the barrel. When the rotary key provided by the invention is applied, the problem of relative sliding of the elastic piece relative to the barrel and the fixed bracket is fundamentally eliminated. Therefore, even after long-time use, the end part of the elastic piece can not bring powder due to friction, and the reliability of the rotary key is further improved. The invention also discloses wearable equipment with the rotary key, and the wearable equipment also has the technical effects.

Description

Rotary key and wearable device with same

Technical Field

The invention relates to the technical field of electronic equipment, in particular to a rotary key and wearable equipment.

Background

Along with the increase of the functions of wrist strap products, the side keys not only bear the functions of the keys, but also realize the functions in the rotation process of the keys in the new generation of products, relatively singly realize the replacement of a dial interface, and more certain wearable products develop games operated by the rotation of the keys independently.

At present common rotary key includes the key cap and with key cap complex barrel, barrel fixes in wearable equipment's casing mounting hole department, the key cap can be relative barrel rotate and can be relative barrel rectilinear movement to realize rotatory and press the function. A spring is arranged between the keycap and the barrel to provide restoring force for lifting up and resetting the keycap after the keycap is pressed down.

However, the button is for matching the equipment main part, and the design is small and exquisite relatively, and the resilience force of spring in addition, spring and key cap looks mutual friction, and the experience of button rotation is relatively poor on the one hand. On the other hand, the rotation causes long-term friction with the end of the spring, which brings about powder, and thus affects the reliability of the rotary key.

In summary, how to effectively solve the problems of poor reliability of the rotary key and the like is a problem to be solved by those skilled in the art.

Disclosure of Invention

In view of the above, a first objective of the present invention is to provide a rotary key, which has a structural design capable of effectively solving the problem of poor reliability of the rotary key, and a second objective of the present invention is to provide a wearable device including the rotary key.

In order to achieve the first object, the invention provides the following technical scheme:

the utility model provides a rotary key, including be used for with equipment casing fixed connection the busan with can be relative the gliding key cap of busa, just the key cap can be relative the busa is rotatory, still include with busa sliding connection's fixed bolster, the fixed bolster for the sliding direction of busa with the key cap for the sliding direction of busa is unanimous, just the fixed bolster with the busa is in keep relative static on the direction of rotation of key cap, the key cap cover is located outside the fixed bolster, the fixed bolster with be provided with between the busa and be used for promoting the fixed bolster and then promote the elastic component that the key cap slide and reset.

Preferably, the rotary key further includes a limiting component for limiting a lifting limit of the fixing support, and when the fixing support is located at the lifting limit, a gap is formed between the fixing support and the keycap in a sliding direction or the fixing support is attached to the keycap.

Preferably, in the above rotary key, a limit groove is formed in a side wall of the fixed bracket, the limit part includes a protrusion having one end connected to the barrel and the other end inserted into the limit groove, the protrusion slides relatively in the limit groove when the fixed bracket slides relative to the barrel, and the fixed bracket is lifted until the protrusion abuts against one end of the limit groove and is limited.

Preferably, in the above rotary key, the limiting groove extends along a sliding direction of the fixing bracket relative to the barrel, and a width of the limiting groove is identical to a width of the protrusion.

Preferably, in the above rotary key, a side wall through hole is formed in a side wall of the barrel, and the protrusion is a pin shaft inserted into the side wall through hole.

Preferably, in the above rotary key, the pin shaft is in interference fit with the through hole of the side wall.

Preferably, in the above-mentioned rotary key, the top of baguan has a baguan mounting groove, the fixed bolster is located in the baguan mounting groove, the both ends of elastic component respectively with the terminal surface of fixed bolster with the tank bottom of baguan mounting groove offsets, the key cap has the key cap mounting groove, the top of baguan is located in the key cap mounting groove.

Preferably, in the above rotary key, the key cap includes a key cap body and a key rod fixedly connected to the key cap body, the key cap body is covered outside the fixed support, a barrel through hole for the key rod to pass through is formed in the center of the barrel, a key through hole for the key rod to pass through is formed in the center of the fixed support, and a flange for abutting against the bottom surface of the barrel to limit the lifting limit of the key cap is connected to the bottom end of the key rod.

Preferably, in the above-mentioned rotary key, a waterproof ring is arranged between the key rod and the through hole of the barrel, and a sealing gasket is arranged between the outer wall of the barrel and the device casing.

The rotary key provided by the invention comprises a barrel, a keycap, an elastic piece and a fixed support. The bus pipe is fixedly connected with the equipment shell; the keycap can slide and rotate relative to the barrel; the fixed bolster is managed with the ba to be sliding connection, and the fixed bolster is unanimous with the cap for the slip direction of ba pipe, and the fixed bolster keeps relative static with the ba pipe on the direction of rotation of cap, and the cap cover is located outside the fixed bolster, is provided with between fixed bolster and the ba pipe to be used for promoting the fixed bolster and then promotes the cap and slide the elastic component that resets.

When the rotary key provided by the invention is applied, the keycap acts on the fixed support when being pressed down, the fixed support acts on the elastic piece when being pressed down, the elastic piece deforms, and after the keycap is released by external force, the restoring force of the elastic piece pushes the fixed support, and the fixed support pushes the keycap to lift and reset. When the keycap rotates relative to the barrel, the end of the elastic piece does not act on the keycap on one side because the elastic piece is arranged between the fixed support and the barrel. On the other hand, the barrel and the fixed support are relatively static in the rotating direction of the keycap, the elastic piece does not rotate along with the keycap, and the end part of the elastic piece does not rub the fixed support, so that the problem of relative sliding of the elastic piece relative to the barrel and the fixed support is fundamentally eliminated. Therefore, even after long-time use, the end part of the elastic piece can not bring powder due to friction, and the reliability of the rotary key is further improved.

In a preferred embodiment, the fixing support further comprises a limiting part for limiting the lifting limit of the fixing support, and the fixing support has a gap with the keycap or is attached to the keycap when the fixing support is in the lifting limit position under the limit of the limiting part. Through the arrangement of the limiting part, the restoring force of the elastic part is limited on the fixed support under the condition that the keycap is lifted, and cannot be transmitted to the keycap. Thereby fundamentally eliminates the friction problem between the moving part that the elastic component caused to the reaction force of key cap, has improved the maneuverability and the experience nature of key cap at rotatory in-process, and can save wear-resisting parts such as wear pad between the moving part, greatly reduced material and equipment cost.

In order to achieve the second object, the present invention further provides a wearable device, which includes any one of the above rotary keys. Since the above-mentioned rotary key has the above-mentioned technical effects, the wearable device having the rotary key should also have corresponding technical effects.

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 some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic cross-sectional view illustrating an assembled state of a rotary key according to an embodiment of the present invention;

fig. 2 is a schematic partial cross-sectional view of a wearable device according to an embodiment of the present invention;

FIG. 3 is another view angle diagram corresponding to FIG. 2;

fig. 4 is a schematic diagram of the corresponding exploded structure of fig. 2.

The drawings are numbered as follows:

keycap 1, keycap body 101, press key rod 102, fixed bolster 2, baguan 3, round pin axle 4, elastic component 5, screw 6, laser watch crown support 7, laser watch crown FPC 8, button gum cover 9, jump ring 10, waterproof circle 11, sealed 12, epitheca 13 that fill up.

Detailed Description

The embodiment of the invention discloses a rotary key, which is used for improving the reliability of the rotary key.

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.

Referring to fig. 1, fig. 1 is a schematic cross-sectional structure view of a rotary key in an assembled state according to an embodiment of the invention.

In one embodiment, the invention provides a rotary key comprising a barrel 3, a key cap 1, an elastic member 5 and a fixed support 2.

Wherein the bartube 3 is intended for fixed connection with the equipment housing. The fixing manner of the bartube 3 to the apparatus casing is not particularly limited herein. The barrel 3 is matched with the keycap 1, and the shape of the barrel can be correspondingly set according to the shape of the keycap 1.

Keycap 1 can be linearly movable relative to the barrel, and keycap 1 can be rotated relative to barrel 3. I.e. the key cap 1 can be used both as a key and as a knob. When the rotary key is applied to devices such as wearable equipment, corresponding functions can be realized through the rotation, pressing or lifting of the keycap 1. For example, a certain function is triggered when the keycap 1 rotates, or a certain function is triggered when the keycap 1 is pressed down. For how to sense the rotation of the key cap 1 and trigger the corresponding function according to the rotation, and how to sense the pressing down of the key cap 1 and trigger the corresponding function according to the pressing down, the corresponding structural arrangement of the common rotary key can be referred to, and is not specific here. The specific connection structure of the key cap 1 and the barrel 3 can also refer to the prior art, and is not limited in detail here.

The fixed support 2 is connected with the barrel 3 in a sliding mode, the sliding direction of the fixed support 2 relative to the barrel 3 is consistent with the sliding direction of the keycap 1 relative to the barrel 3, and the fixed support 2 and the barrel 3 are kept static relatively in the rotating direction of the keycap 1. That is, the fixed support 2 can slide linearly with the key cap 1 relative to the barrel 3, but cannot rotate relative to the barrel 3. When the key cap 1 rotates, the key cap 1 rotates relative to the barrel 3 and the fixed support 2. The connection structure of the fixing bracket 2 and the bartube 3 can refer to a conventional sliding connection structure, and is not limited in detail here.

An elastic piece 5 used for pushing the fixed support 2 and further pushing the keycap 1 to slide and reset is arranged between the fixed support 2 and the barrel 3. The keycap 1 is arranged outside the fixed support 2, and the keycap 1 acts on the fixed support 2 to press down when being pressed down. After the keycap 1 is released by external force, due to the arrangement of the elastic piece 5, the restoring force of the elastic piece 5 pushes the fixed support 2 to be lifted, and then the fixed support 2 pushes the keycap 1 to be automatically lifted and reset. Specifically, the elastic member 5 may be a compression elastic member, such as a compression spring, for pushing the fixing support 2 to push the key cap 1 to lift.

When the rotary key provided by the invention is applied, the keycap 1 acts on the fixed support 2 when pressed down, the fixed support 2 acts on the elastic piece 5 when pressed down, the elastic piece 5 deforms, and after the keycap 1 is released by external force, the restoring force of the elastic piece 5 pushes the fixed support 2, and the fixed support 2 pushes the keycap 1 to lift up and reset. When the key cap 1 rotates relative to the barrel 3, since the elastic member 5 is disposed between the fixing support 2 and the barrel 3, on the one hand, the end of the elastic member 5 does not act on the key cap 1. On the other hand, the barrel 3 and the fixed support 2 are relatively static in the rotation direction of the keycap 1, the elastic member 5 does not rotate along with the keycap 1, and the end of the elastic member 5 does not rub against the fixed support 2, so that the problem of relative sliding of the elastic member 5 with respect to the barrel 3 and the fixed support 2 is fundamentally eliminated. Therefore, even after long-term use, the end of the elastic element 5 can not bring powder due to friction, and the reliability of the rotary key is further improved.

Further, the lifting limit limiting device further comprises a limiting component used for limiting the lifting limit of the fixed support 2, and a gap is formed between the fixed support 2 and the keycap 1 in the sliding direction or the fixed support 2 is attached to the keycap 1 when the fixed support is located at the lifting limit position under the limiting of the limiting component. The elastic member 5 is disposed between the fixed bracket 2 and the boom pipe 3, i.e., the fixed bracket 2 serves as a force-releasing structure of the elastic member 5. The limiting component is used for limiting the lifting limit of the fixed support 2, namely after the keycap 1 is released by external force, the fixed support 2 is lifted to reset under the action of the elastic piece 5, and meanwhile, the keycap 1 is pushed to reset. When the fixed bracket 2 is lifted to be blocked by the position limiting part and cannot move continuously, the fixed bracket 2 reaches a lifting limit position. It should be noted that the gap between the fixing frame 2 and the key top 1 in the sliding direction when the fixing frame 2 is at the lifted limit position means that the fixing frame 2 and the key top 1 do not contact with each other in the sliding direction, and the acting force of the elastic member 5 received by the fixing frame 2 is not transmitted to the key top 1. When the fixed support 2 is at the lifting limit position, the fixed support 2 is attached to the keycap 1 in the sliding direction, which means that the fixed support 2 is just attached to the keycap 1 in the sliding direction without squeezing, so that the acting force of the elastic member 5 applied to the fixed support 2 is not transmitted to the keycap 1. In order to avoid idle travel of the key cap 1, the fixing support 2 preferably abuts against the key cap 1 in the sliding direction when in the lifted extreme position. Of course, during the assembly process, there may be a case that the fixing support 2 is in contact with the key cap 1 and there is a certain pressing force, but the elastic member 5 still has a good restoring force and a good force-releasing effect with respect to the key cap 1 directly acted on, which should also be within the protection scope of the present application.

Through the setting of spacing part, make on the one hand fixed bolster 2 be connected with the bustle 3 and can not deviate from. On the other hand, the restoring force of the elastic member 5 is restricted on the fixed frame 2 in the key top 1 lifted state, and is not transmitted to the key top 1. Thereby fundamentally eliminates the friction problem between the moving part that elastic component 5 caused to key cap 1's reaction force, has improved key cap 1 maneuverability and experience at rotatory in-process, and can save wear-resisting parts such as wear pad between the moving part, greatly reduced material and equipment cost. And because the wear-resisting piece requires rigorously, the assembly precision requires highly, the reliability requires highly, the cost is higher and cause the product uniformity poor. Through the structure setting of this application, need not to set up wear pad again to avoid above-mentioned problem, practiced thrift the cost, improved the product uniformity.

The limiting groove is formed in the side wall of the fixing support 2, the limiting part comprises a protrusion, one end of the protrusion is connected with the bustle pipe 3, the other end of the protrusion is inserted into the limiting groove, the protrusion slides in the limiting groove when the fixing support 2 slides relative to the bustle pipe 3, and the fixing support 2 is lifted to be limited when the protrusion abuts against one end of the limiting groove. When the fixed support 2 slides along with the keycap 1, the fixed support 2 slides relative to the bulge. One end of the limit groove, specifically, the end corresponding to the pressing direction of the fixed bracket 2, is closed, and then, along with the lifting of the fixed bracket 2, when the end of the limit groove abuts against the protrusion, the lifting of the fixed bracket 2 is limited, that is, the fixed bracket 2 reaches the lifting limit position. And the protrusion forms an inverse buckle so that the fixing bracket 2 cannot be separated.

Further, the limit groove extends along the sliding direction of the fixing bracket 2 relative to the barrel 3, and the width of the limit groove is consistent with that of the protrusion. Protruding and spacing groove cooperation, the spacing groove can play spacing and the guide effect to the fixed bolster 2 slip direction on the one hand, and on the other hand, the spacing groove has restricted the relative busan 3 rotation of fixed bolster 2 with bellied cooperation, makes the two keep at the ascending relative stillness of key cap 1 direction of rotation. Adopt above-mentioned structure promptly, both realized the restriction of fixing support 2 relative bustle 3 pivoted through spacing groove and arch, realized the restriction of lifting up the extreme position to fixing support 2 again, simple structure is compact. According to the needs, can also set up the spacing part that restricts fixed part 2 and lift up the extreme position alone respectively, and the part of preventing changeing that restricts the relative bustle 3 of fixed bolster and rotate, the structure is complicated relatively. The limiting part and the anti-rotation part can adopt structures such as bosses and the like respectively.

The one end of orientation bustle 3 of spacing groove, the one end that corresponds fixed bolster 2 and press the direction promptly is the closure form, and its other end deviates from one end of bustle 3 promptly specifically can be the opening form. That is, the end corresponding to the lifting direction of the fixing bracket 2 is opened, so that the fixing bracket 2 and the barrel 3 can be conveniently assembled. And the arch can move to this end edge along the spacing groove when key cap 1 presses down, is favorable to reducing the size of key cap 1 under the same stroke of pressing to satisfy the miniaturized demand of equipment. Of course, both ends of the limiting groove opposite to each other can be closed according to requirements. The length of the limiting groove is set according to the requirement, and is not limited specifically here.

In order to better perform the limiting function, a plurality of limiting components can be arranged, for example, a plurality of protrusions are uniformly arranged on the circumference of the barrel 3, and limiting grooves are correspondingly arranged on the protrusions in a matched manner. The reliability of the rotary key is further improved through the cooperation and the combined action of the plurality of limiting parts.

In order to facilitate the assembly and disassembly of all parts, a side wall through hole is formed in the side wall of the barrel 3, and the protrusion is a pin shaft 4 inserted into the side wall through hole. During assembly, the fixing support 2 is arranged in the barrel 3, the limiting groove is aligned with the side wall through hole, then the pin shaft 4 is inserted into the side wall through hole, and the end part of the pin shaft is inserted into the limiting groove. That is, the pin shaft 4 is inserted into the through hole of the side wall and the end part is positioned in the limit groove. The side wall through hole has a limiting effect on the pin shaft 4, and the pin shaft is prevented from moving linearly along with the fixing support 2. Specifically, the pin shaft 4 is in interference fit with the side wall through hole, so that the pin shaft 4 is prevented from being separated from the side wall through hole in use or reliability test. According to needs, the pin shaft 4 and the barrel 3 can be fixed in other fixed connection modes, or the side wall of the keycap 1 covers the outer wall of the barrel 3 and shields the side wall through hole, so that the pin shaft 4 can be limited by the keycap 1 to prevent the pin shaft from being separated. According to the needs, the bulge also can be with 3 integrated into one piece's structures of bayonet, then need corresponding setting with the assembly of fixed bolster 2 and avoid the bit architecture to satisfy the assembly demand.

It is protruding with spacing groove complex that the spacing part adopts above to have explained, specifically like the condition of round pin axle 4, spacing part also can be including setting up in the bustle flange on 3 tops of bustle pipe and setting up in the support flange of fixed bolster 2 bottoms as required, and the top of bustle pipe 3 lifts up the one end of direction promptly, and the one end of direction is pressed down promptly to the bottom of fixed bolster 2, and fixed bolster 2 is lifted up to the support flange and is spacing when the bustle flange offsets, then reaches and lifts up the extreme position.

On the basis of each above-mentioned embodiment, the top of baguan 3 has the baguan mounting groove, and fixed bolster 2 is located the baguan mounting groove, and the both ends of elastic component 5 offset with the terminal surface of fixed bolster 2 and the tank bottom of baguan mounting groove respectively, and key cap 1 has the key cap mounting groove, and the top of baguan 3 is located the key cap mounting groove. That is to say that the lateral wall of key cap 1 is located outermost end, is barrel 3 and fixed bolster 2 in proper order in it, and each part overlaps each other to establish to connect reliably, the assembly of being convenient for. And the key cap 1 is positioned at the outer side, so that a user can conveniently perform corresponding pressing and rotating operations. The fixed bolster 2 specifically can set up the support mounting groove, and then the one end of elastic component 5 offsets with the tank bottom of support mounting groove, and the other end offsets with the tank bottom of pipe mounting groove. Through the arrangement, the space is saved, and the elastic piece 5 is convenient to mount. According to needs, the keycap 1 can be covered outside the fixed support 2 and positioned in the barrel mounting groove, and under the condition that the limiting part is arranged, the side wall of the keycap 1 needs to be provided with an avoiding through hole for avoiding the limiting part.

In the above embodiments, the key cap 1 includes a key cap body 101 and a key rod 102 fixedly connected to the key cap body 101, the key cap body 101 is covered outside the fixing support 2, the center of the barrel 3 has a barrel through hole for the key rod 102 to pass through, the center of the fixing support 2 has a key through hole for the key rod 102 to pass through, and the bottom end of the key rod 102 is connected to a flange for abutting against the bottom surface of the barrel 3 to limit the lifting limit of the key cap 1. That is, the key cap 1 is rotatably connected with the barrel 3 through the key rod 102, and the flange is arranged at the bottom end of the key rod 102, so that the key cap 1 is limited in the connection state with the barrel 3 and cannot be separated, and the arrangement of the flange does not affect the pressing of the key cap 1. Specifically, the flange is a circlip 10, such as an E-shaped circlip. A groove is arranged at the bottom end of the key rod 102, and the clamp spring 10 is arranged in the groove. Through the setting of jump ring 10, restricted the limit position that shifts up of key cap 1, prevent that key cap 1 from deviating from.

Further, a waterproof ring 11 is arranged between the key rod 102 and the through hole of the barrel, and a sealing gasket 12 is arranged between the outer wall of the barrel 3 and the equipment shell. Through set up waterproof circle 11 and setting up sealed 12 between bara pipe 3 and the equipment casing between key-press pole 102 and bara pipe 3, realized the effective sealing inside and outside the equipment casing of rotatory button department. The sealing pad 12 may be a silicone pad. The waterproof ring 11 may be an O-ring.

Based on the rotary key provided in the above embodiment, the present invention further provides a wearable device, which includes any one of the rotary keys in the above embodiments. Since the wearable device employs the rotary key in the above embodiments, please refer to the above embodiments for the beneficial effects of the wearable device.

Specifically, referring to fig. 2-4, the wearable device includes an upper shell 13, a screw 6, a laser crown support 7, a laser crown FPC 8, and a key rubber sleeve 9. Taking a preferred embodiment as an example, during assembly, firstly, the elastic element 5 is installed along one side of the bartube installation groove of the bartube 3, the fixing support 2 is installed, during installation, the limit groove of the fixing support 2 is aligned with the side wall through hole of the bartube 3, then the pin shaft 4 is inserted from the side surface and directly inserted into the limit groove of the fixing support 2, so that an inverted buckle is formed, the fixing support 2 cannot be separated, and the pin shaft 4 and the side wall through hole are fixed in an interference mode, so that the problem of separation in use or reliability test is prevented. The fixing bracket 2 can move in the direction of the limiting groove by pressing from one side of the fixing bracket 2, and the pressing force is released and can be pushed back to the original position by the elastic piece 5.

The assembly process of the upper shell assembly is as follows: and assembling the sealing gasket 12 on the bartube 3, screwing the bartube 3 into the upper shell 13 through the upper point glue falling resistance of the thread threads, and welding and fixing the position of the inner side groove, thereby fixedly connecting the bartube 3 with the upper shell 13. Then, firstly, two O-shaped rings are arranged in a groove of the key rod 102, then the key rod 102 is arranged from one side of a bracket mounting groove of the fixing bracket 2, the inner side of the key rod is clamped by an E-shaped clamp spring, then the E-shaped clamp spring and the key rod 102 are electrically welded together, and the whole upper shell 13 assembly is assembled.

The assembly process of the laser crown support 7 is as follows: firstly, the laser crown FPC 8 is fixed on the laser crown support 7 through a back glue/positioning column and a buckle, then the key rubber sleeve 9 is fixed on the laser crown support 7 through a convex hull groove structure, and then the whole laser crown support 7 is fixed on the upper shell assembly through a screw 6.

When the keycap 1 is rotated, the elastic part 5 is fixed on the barrel 3 by the fixing support 2, the whole elastic part 5 does not generate resilience force on the keycap 1 any more, no resilience force exists, and no friction force is caused by the resilience force, the resistance force applied when the whole keycap 1 rotates is only O-shaped ring friction resistance, the resistance force is very slight, the hand feeling is greatly improved, and thus a wear-resistant gasket between the barrel 3 and an E-shaped clamp spring is omitted; the problem of rotation is no longer present by the elastic element 5, the wear-resistant pad designed for eliminating the friction noise between the metal between the elastic element 5 and the barrel 3 can be eliminated, and the powder problem caused by friction is eliminated by eliminating the material.

Wearable equipment in this application specifically can wear equipment for wrist such as wrist-watch or bracelet, also can be other wearable equipment such as head display.

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.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rotary key comprises a barrel (3) fixedly connected with an equipment shell and a key cap (1) capable of sliding relative to the barrel (3), wherein the key cap (1) can rotate relative to the barrel (3), and is characterized by further comprising a fixed support (2) slidably connected with the barrel (3), the sliding direction of the fixed support (2) relative to the barrel (3) is consistent with the sliding direction of the key cap (1) relative to the barrel (3), the fixed support (2) and the barrel (3) are kept relatively static in the rotating direction of the key cap (1), the key cap (1) is covered outside the fixed support (2), and an elastic piece (5) for pushing the fixed support (2) to further push the key cap (1) to slide and reset is arranged between the fixed support (2) and the barrel (3);

the fixing support (2) is used for limiting the lifting limit position of the fixing support (2), and a gap is formed between the fixing support (2) and the keycap (1) in the sliding direction or the fixing support is attached to the keycap (1) when the fixing support (2) is located at the lifting limit position;

a limiting groove is formed in the side wall of the fixed support (2), the limiting part comprises a protrusion, one end of the protrusion is connected with the bustle pipe (3), the other end of the protrusion is inserted into the limiting groove, the protrusion slides relatively in the limiting groove when the fixed support (2) slides relative to the bustle pipe (3), and the fixed support (2) is limited when lifted until the protrusion abuts against one end of the limiting groove;

the side wall of the barrel (3) is provided with a side wall through hole, and the protrusion is a pin shaft (4) inserted into the side wall through hole.

2. The rotary button according to claim 1, wherein the limiting groove extends in the sliding direction of the fixing bracket (2) relative to the barrel (3), and the width of the limiting groove corresponds to the width of the protrusion.

3. The rotary key of claim 1, wherein the pin (4) is an interference fit with the sidewall through hole.

4. The rotary key according to any one of claims 1-3, wherein the top end of the barrel (3) has a barrel mounting groove, the fixed support (2) is located in the barrel mounting groove, two ends of the elastic member (5) respectively abut against the end surface of the fixed support (2) and the bottom of the barrel mounting groove, the key cap (1) has a key cap mounting groove, and the top end of the barrel (3) is located in the key cap mounting groove.

5. The rotary key according to any one of claims 1-3, wherein the key cap (1) comprises a key cap body (101) and a key rod (102) fixedly connected with the key cap body (101), the key cap body (101) is covered outside the fixed support (2), the center of the barrel (3) is provided with a barrel through hole for the key rod (102) to pass through, the center of the fixed support (2) is provided with a key through hole for the key rod (102) to pass through, and the bottom end of the key rod (102) is connected with a flange for abutting against the bottom surface of the barrel (3) to limit the lifting limit of the key cap (1).

6. The rotary key according to claim 5, characterized in that a waterproof ring (11) is provided between the key lever (102) and the barrel through hole, and a sealing gasket (12) is provided between the outer wall of the barrel (3) and the device housing.

7. A wearable device, characterized in that it comprises a rotary key according to any of claims 1-6.