CN210245368U - Key board and remote controller comprising same - Google Patents
Key board and remote controller comprising same Download PDFInfo
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- CN210245368U CN210245368U CN201921569636.2U CN201921569636U CN210245368U CN 210245368 U CN210245368 U CN 210245368U CN 201921569636 U CN201921569636 U CN 201921569636U CN 210245368 U CN210245368 U CN 210245368U
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Abstract
The utility model discloses a key board and a remote controller comprising the key board, relating to the technical field of remote control equipment, wherein the key board comprises a plurality of keys and a framework; each key comprises a hard button and an elastic outer layer, a groove is arranged on the end face of the hard button, the key is of a step column structure and comprises a front section and a rear section, the part, provided with the groove, of the hard button is located in the rear section, and the other part of the hard button is located in the front section; the diameter of the circumscribed circle of the cross section of the front section is smaller than that of the circumscribed circle of the cross section of the rear section; the framework is provided with a through hole, the cross section of the through hole has the same shape as the cross sections of the front section and the rear section, and the diameter of a circumscribed circle of the cross section of the through hole is equal to that of the circumscribed circle of the cross section of the rear section; the side wall of the rear section is tightly connected with the inner wall of the through hole through an adhesive material; the elastic outer layer is provided with an elastic bulge. So, the button passes through bonding material with the skeleton and closely closes, and is sealed waterproof to there is the technical problem that there is the waterproof design of remote controller button to have the defect among the prior art to solved.
Description
Technical Field
The utility model relates to a remote control equipment technical field, more specifically say, relate to a keypad and including remote controller of this keypad.
Background
In recent years, due to rapid development of electronic and information industries, related products are increasingly precise, and more devices change a traditional manual control mode into a remote control mode, wherein wireless remote control is gradually known to the public. For example, an underground coal mine is operated underground, a coal mining machine is used as main equipment for coal mining and works in a humid and high-dust environment, wireless remote control is used for the operation of the existing coal mining machine, water leakage of a supporting top plate is a common phenomenon in the process of using a remote controller by workers, the surface of the remote controller is in a humid or water accumulation state for a long time, and the situations of button failure, button damage, water inflow of the remote controller, no reaction after button pressing of the remote controller and the like of the remote controller occur.
The remote controller mainly comprises a shell, a keyboard component and a mainboard, and the main reason that a series of problems occur to the remote controller due to improper water prevention is that the waterproof design of the keyboard has defects.
Therefore, how to solve the technical problem that the waterproof design of the remote controller key in the prior art has defects becomes an important technical problem to be solved by technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a technical problem that the remote controller of keypad and including this keypad has the defect in order to solve the waterproof design of the remote controller button that exists among the prior art. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.
In order to achieve the above purpose, the utility model provides a following technical scheme:
2. the utility model provides a key board, which comprises a plurality of keys and a framework; each key comprises a hard button and an elastic outer layer which semi-wraps the hard button, a groove is arranged on the end face of one side of the hard button, which is in contact with the elastic outer layer, the key is of a step column structure and comprises a front section and a rear section, the part of the hard button, which is provided with the groove, is positioned in the rear section, and the rest part of the hard button is positioned in the front section; the diameter of a circumscribed circle of the cross section at any position of the front section is smaller than that of the cross section at any position of the rear section; the framework is provided with a plurality of through holes for placing the keys, the cross sections of the through holes are the same as the cross sections of the front section and the rear section, and the diameter of a circumscribed circle of the cross section of each through hole is equal to that of a circumscribed circle of the cross section of any position of the rear section; the side wall of the rear section is tightly connected with the inner wall of the through hole through an adhesive material; and the end surface of the elastic outer layer far away from the hard button is provided with an elastic bulge which is used for being in contact with a mechanical key on the circuit board.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Furthermore, the inner concave surface of the groove is an arc surface, and a columnar groove with the same cross section as that of the elastic bulge is arranged at the center of the groove.
Furthermore, the cross sections of the through hole, the front section and the rear section are all polygonal or circular.
Furthermore, the framework is provided with a light hole used for being connected with the corresponding main board.
Furthermore, be equipped with the circular port that is used for placing the pilot lamp on the skeleton.
Furthermore, the elastic bulge is arranged at the centroid position of the rear section end face and is columnar as a whole.
Further, the framework is made of stainless steel, the elastic outer layer is made of rubber, and the hard button is made of ABS (Acrylonitrile Butadiene Styrene).
Furthermore, the bonding material is bonding rubber, and the side wall of the rear section is closely and compositely connected with the inner wall of the through hole through a laminating process.
Furthermore, the outer contour of the framework is polygonal or circular.
The utility model also provides a remote controller, including foretell keypad.
In the technical scheme provided by the utility model, the key board comprises a plurality of keys and a framework; each key comprises a hard button and an elastic outer layer which wraps the hard button in half, the hard button and the elastic outer layer form a whole, a groove which is sunken towards the interior of the hard button is arranged on the end face of one side of the joint of the hard button and the elastic outer layer, the key is of a step column structure and comprises a front section and a rear section, the part of the hard button provided with the groove is positioned in the rear section, and the other part of the hard button is positioned in the front section; the diameter of the circumscribed circle of the cross section at any position of the front section is smaller than that of the circumscribed circle of the cross section at any position of the rear section; the framework is provided with a plurality of through holes for placing keys, the cross sections of the through holes are the same as the cross sections of the front section and the rear section in shape, and the diameter of a circumscribed circle of the cross section of each through hole is equal to that of a circumscribed circle of the cross section of any position of the rear section; the side wall of the rear section is tightly connected with the inner wall of the through hole through an adhesive material; and the end surface of the elastic outer layer far away from the hard button is provided with an elastic bulge which is used for being in contact with a mechanical key on the circuit board. Therefore, the groove is arranged, so that the elastic bulge can rebound conveniently; the key board has simple structure, controllable volume and less water leakage points; the key and the framework are tightly connected through the bonding material, so that the sealing and waterproof effects are achieved, and the technical problem that the waterproof design of the remote controller key in the prior art is defective is solved.
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 these drawings without creative efforts.
Fig. 1 is a schematic front view of a key sheet in an embodiment of the present invention;
fig. 2 is a schematic rear view of the key sheet in the embodiment of the present invention;
fig. 3 is a schematic structural diagram of a key in an embodiment of the present invention;
fig. 4 is a schematic cross-sectional structure diagram of a key in an embodiment of the present invention;
fig. 5 is a schematic structural diagram of the framework in the embodiment of the present invention.
In the figure, 1-framework, 2-key, 11-unthreaded hole, 12-circular hole, 13-through hole, 21-hard button, 22-elastic outer layer, 211-groove, 221-elastic bulge, 222-rear section and 223-front section.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The purpose of this embodiment is to provide a keypad and a remote controller including the keypad, which tightly closes the keys and the framework through the adhesive material, thereby playing a role of sealing and waterproofing, and solving the technical problem of the existing waterproof design of the keys of the remote controller in the prior art.
Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below do not limit the scope of the invention described in the claims. Further, the entire contents of the configurations shown in the following embodiments are not limited to those necessary as a solution of the invention described in the claims.
Referring to fig. 1-5, the keypad provided in the present embodiment includes a plurality of keys 2 and a frame 1; the shape and the size of the framework 1 can be set according to specific use conditions, the framework is made of stainless steel, the hardness is high, the support is not deformed when being extruded and stressed, and meanwhile, the stainless steel is rustproof and corrosion-resistant; each key 2 comprises a hard button 21 and an elastic outer layer 22 which semi-wraps the hard button 21, the hard button 21 is made of ABS (acrylonitrile butadiene styrene) and has certain hardness to prevent the key 2 from deforming, the elastic outer layer 22 is made of rubber and has certain elasticity to enable the key 2 to rebound, and the rubber is good in durability, corrosion resistance and toughness and suitable for high and low temperatures; the elastic outer layer 22 is formed by placing a mold below the hard button 21 and integrally molding through glue injection and extrusion, and the shape of the elastic outer layer can be changed by replacing different molds according to the needs; the hard button 21 is a step column structure, the cross section of the hard button is polygonal or circular, the hard button 21 is divided into a large-diameter section and a small-diameter section, one end of the hard button 21, which is in contact with the elastic outer layer 22, is provided with a groove 211, namely the end face of the large-diameter section is provided with the groove 211, the inner concave surface of the groove 211 is a cambered surface, and the elastic outer layer 22 is also a step column structure with a polygonal or circular cross section.
The key 2 is also of a stepped column structure and comprises a front section 223 and a rear section 222, the part of the hard button 21 provided with the groove 211 is positioned in the rear section 222, the rest part is positioned in the front section 223, namely, the large diameter section is positioned in the rear section 222, and the small diameter section is positioned in the front section 223; the diameter of the circumscribed circle of the cross section at any position of the front section 223 is smaller than that of the circumscribed circle of the cross section at any position of the rear section 222; the framework 1 is provided with a plurality of through holes 13 for placing the keys 2, the cross sections of the through holes 13 are the same as the cross sections of the front section 223 and the rear section 222, and the diameter of a circumscribed circle of the cross section of the through hole 13 is equal to that of the cross section of any position of the rear section 222; the key 2 is arranged in the through hole 13 of the framework 1 in the middle, a gap is left between the front section 223 of the key 2 and the through hole 13, the front section 223 protrudes out of the through hole 13, one part of the rear section 222 is positioned on the back of the framework 1, namely the other side of the through hole 13, the rest part is positioned in the through hole 13, the side wall of the rear section 222 is tightly connected with the inner wall of the through hole 13 through an adhesive material, and a rubber layer can be formed on the back of the framework 1 after the two are tightly connected; the end face of the elastic outer layer 22 far away from the hard button 21 is provided with an elastic bulge 221 for contacting with a mechanical button on a circuit board, the elastic bulge is made of rubber, has certain elasticity, is columnar as a whole, and the height of the elastic bulge can be set according to the stroke of the external mechanical button.
In such a configuration, the end surface of the elastic outer layer 22 is provided with an elastic protrusion 221, which is made of rubber and has a certain elasticity, so as to play a role of buffering and protect the mechanical key in the pressing process of the key 2; the end face of the large-diameter section of the hard button 21 is provided with a groove 211, and the inner concave surface of the groove is an arc surface, so that more space is reserved for the elastic bulge 221, and the elastic bulge can rebound better; the key 2 is integrally formed by a hard button 21 corresponding to a die through glue injection and extrusion, and the key 2 has better sealing property; the keypad has simple structure, controllable volume and few water leakage points, the side wall of the rear section 222 is tightly connected with the inner wall of the through hole 13 through the bonding material, and the waterproof sealing effect is achieved, so that the technical problem that the waterproof design of the remote controller key in the prior art has defects is solved.
More specifically, the inner concave surface of the groove 211 is an arc surface, and a cylindrical groove having a cross section identical to that of the elastic protrusion 221 is disposed at the center of the groove 211, that is, the cylindrical groove is disposed at the center of the arc surface, so that a space is further reserved, and the elastic protrusion 221 can rebound better.
As an alternative embodiment, the cross sections of the through hole 13, the front section 223 and the rear section 222 are all polygonal or circular, and in this embodiment, the cross sections of the three are all circular. With the arrangement, the stress of the circular arc edge is smaller than that of the right-angle edge, and the bonding is firmer.
In a further preferred embodiment, the framework 1 is provided with light holes 11 for connecting with corresponding main boards. So set up, reserve the mounting hole and conveniently be connected with outside mainboard, because of having the rubber layer, so can not leak.
Specifically, embodiment is equipped with the circular port 12 that is used for placing the pilot lamp on the skeleton 1, so set up, leaves circular port 12, can place the pilot lamp as required, distinguishes the operating condition of remote controller.
As an optional implementation manner, the elastic protrusion 221 is disposed at a centroid position of an end face of the elastic outer layer 22 far away from the hard button 21, the whole of the elastic protrusion is columnar, and the cross section of the elastic outer layer can be set according to needs, preferably, the elastic protrusion is set to be circular.
As an alternative embodiment, the adhesive material is adhesive rubber, the side wall of the rear section 222 and the inner wall of the through hole 13 are tightly and compositely connected through a lamination process, the lamination process is also called a lamination forming process, which is a forming processing method for combining multiple layers of same or different materials into a whole under heating and pressurizing, so that the adhesive material is rubber, the toughness is good, the corrosion resistance and the waterproof performance are good, the high and low temperature stability is good, the adhesive material and the rubber are bonded through the lamination process, and the sealing performance and the waterproof performance are good after the forming.
In the specific embodiment, the outer contour of the framework 1 is polygonal or circular, preferably rectangular, and four corners of the framework are all provided with round corners, so that the rectangular shape is convenient to hold and provided with the round corners, and the appearance is relatively mellow.
The embodiment also provides a remote controller which comprises the key board, the key board of the remote controller provided by the embodiment is composed of a framework 1 and keys 2, the framework 1 and the keys 2 are integrated into a whole through a lamination compounding process by bonding rubber, the sealing performance is good, the waterproofness is good, and therefore the problem that the waterproof design of the keys of the remote controller in the prior art has defects is solved. The derivation process of the beneficial effect is substantially similar to the derivation process of the beneficial effect brought by the key board, and therefore, the description is omitted here.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A key board is characterized by comprising a plurality of keys (2) and a framework (1); each key (2) comprises a hard button (21) and an elastic outer layer (22) which semi-wraps the hard button (21), a groove (211) is formed in the end face of one side, in contact with the elastic outer layer (22), of the hard button (21), the key (2) is of a step column structure and comprises a front section (223) and a rear section (222), the part, provided with the groove (211), of the hard button (21) is located in the rear section (222), and the rest part of the hard button (21) is located in the front section (223); the diameter of a circumscribed circle of the cross section of any position of the front section (223) is smaller than that of the cross section of any position of the rear section (222); the framework (1) is provided with a plurality of through holes (13) for placing the keys (2), the cross sections of the through holes (13) are the same as the cross sections of the front section (223) and the rear section (222), and the diameter of a circumscribed circle of the cross section of the through hole (13) is equal to the diameter of a circumscribed circle of the cross section of any position of the rear section (222); the side wall of the rear section (222) is tightly connected with the inner wall of the through hole (13) through an adhesive material; and the end surface of the elastic outer layer (22) far away from the hard button (21) is provided with an elastic bulge (221) for contacting with a mechanical key on a circuit board.
2. The key sheet according to claim 1, wherein the inner concave surface of the groove (211) is a curved surface, and a cylindrical groove having a cross section identical to that of the elastic protrusion (221) is formed at a central position of the groove (211).
3. The key sheet according to claim 1, wherein the through-hole (13), the front section (223), and the rear section (222) are each polygonal or circular in cross section.
4. The key sheet according to claim 1, wherein said skeleton (1) is provided with light holes (11) for connecting with corresponding main boards.
5. The key sheet according to claim 1, wherein said frame (1) is provided with a circular hole (12) for placing an indicator light.
6. The key sheet according to claim 1, wherein said elastic projections (221) are provided at the centroid positions of the end surfaces of said elastic outer layers (22), and are columnar as a whole.
7. The key sheet according to claim 1, wherein said frame (1) is made of stainless steel, said elastic outer layer (22) is made of rubber, and said hard buttons (21) are made of ABS.
8. The key sheet according to claim 1, wherein said adhesive material is adhesive rubber, and the side wall of said rear section (222) and the inner wall of said through hole (13) are closely and compositely connected by a lamination process.
9. The keypad according to claim 1, wherein the outer contour of the skeleton (1) is polygonal or circular.
10. A remote controller comprising the key sheet according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921569636.2U CN210245368U (en) | 2019-09-19 | 2019-09-19 | Key board and remote controller comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921569636.2U CN210245368U (en) | 2019-09-19 | 2019-09-19 | Key board and remote controller comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210245368U true CN210245368U (en) | 2020-04-03 |
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ID=69966440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921569636.2U Active CN210245368U (en) | 2019-09-19 | 2019-09-19 | Key board and remote controller comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210245368U (en) |
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2019
- 2019-09-19 CN CN201921569636.2U patent/CN210245368U/en active Active
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