CN219246571U - Waterproof key structure - Google Patents

Abstract

The utility model discloses a waterproof key structure which comprises a shell, a protection plate, a circuit board, touch keys and physical keys, wherein positioning components are arranged at the bottoms of the physical keys, positioning grooves are formed in two sides of a clamping groove, and the waterproof components are inserted into the clamping groove. According to the utility model, the stepped holes are matched with the positioning components, so that the physical keys are connected with the mounting grooves, the abrasion of the physical keys caused by long-time rotation is prevented, the gap between the physical keys and the protection plate is gradually increased, the waterproof performance is reduced, rainwater penetrating into the top of the protection plate can be effectively isolated by arranging the waterproof components, and the circuit board is prevented from being damaged due to the penetration of the rainwater, and the problem that the circuit board is damaged due to the fact that rainwater or dew easily penetrates into the equipment through the physical keys in the outdoor environment and the humid environment is solved.

Description

Waterproof key structure

Technical Field

The utility model relates to the technical field of key structures, in particular to a waterproof key structure.

Background

The key, also called a button switch, realizes the circuit switching switch by pushing the button to touch the contact, is a manually controlled master electrical appliance and is mainly used for issuing operation commands, switching on or off a control circuit and controlling the operation of mechanical and electrical equipment.

For example, the patent number is: 201320157809.6 the utility model discloses a key structure, which comprises: a switch element arranged on a substrate of an electronic device, a first accommodating part arranged on a shell of the electronic device, a connecting part formed by extending a preset area on the inner surface of the first accommodating part, and a pressing part formed by extending one end surface of the connecting part; a gap is arranged between the connecting part and the first accommodating part and between the pressing part and the first accommodating part; the pressing part is pressed by force, and one end of the pressing part contacts the switch element by means of elastic deformation of the connecting part so as to touch the switch element. The key structure of the utility model has the advantages of simple structure, cost reduction and convenient assembly.

Based on the search of patent numbers, the following defects in the prior art are combined:

the existing key structure can protect a circuit substrate through the cooperation of the protection plate and the shell, but has poor waterproof performance, rainwater or dew easily infiltrates into the equipment through the entity keys in the outdoor environment and the humid environment, so that the circuit substrate is damaged, the service life is prolonged, and the economic loss is caused.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model aims to provide a waterproof key structure, which has the advantages of preventing the key from rotating and shaking while preventing water, and solves the problems that the existing key structure can protect a circuit substrate by arranging a protection plate and a shell, but has poor waterproof performance, rainwater or dew easily permeates into the device through a physical key in an outdoor environment and a humid environment, so that the circuit substrate is damaged, the service life is not used or is greatly reduced, and economic loss is caused.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a waterproof button structure, includes casing, protection shield, circuit board, touching button and entity button, the protection shield joint is at the casing top, the recess is seted up to protection shield bottom one side, circuit board fixed mounting is inside the casing, touching button welding is in circuit board top one side, entity button movable assembly is at protection shield top one side, the shoulder hole has been seted up to entity button inside, entity button top is provided with the block, entity button bottom is provided with locating component, the draw-in groove has been seted up at the casing top, the constant head tank has all been seted up to the draw-in groove both sides, waterproof component has been pegged graft to the draw-in groove inside.

As the preferable mode of the utility model, the positioning component comprises a connecting block, a straight countersunk head screw and a threaded hole, wherein the threaded hole is formed in the top of the connecting block, the straight countersunk head screw penetrates through the stepped hole and is in threaded connection with the threaded hole, the connecting block is positioned at the bottom of the solid key, the connecting block is in a cross shape, and the connecting block is made of nylon materials.

As the preferable waterproof component of the utility model, the waterproof component comprises a silica gel pad, the top of the silica gel pad is provided with four mounting grooves which are transversely equidistant, the four mounting grooves are in cross-shaped arrangement, two sides of the silica gel pad are fixedly connected with clamping blocks, the clamping blocks are made of rubber materials, and the thickness of the silica gel pad is two millimeters at zero point.

As the preferable mode of the utility model, the periphery of the bottom of the silica gel pad is provided with the chamfer, the connecting blocks are in one-to-one correspondence with the positions of the mounting grooves, the connecting blocks are inserted into the mounting grooves, and the periphery of the bottom of the connecting blocks is provided with the chamfer.

As the preferable mode of the utility model, the periphery of the bottom of the silica gel pad is inserted into the clamping groove, the clamping groove and the silica gel pad are square, the positioning groove and the clamping block are semicircular, the clamping block is inserted into the positioning groove, and the groove is positioned on one side of the entity key.

As the utility model is preferable, the two sides of the outer surface of the mounting groove are fixedly connected with the reinforcing plates, the reinforcing plates are arranged in a triangle shape, the reinforcing plates are made of rubber materials, the cap is inserted into the stepped hole, and the diameter of the top of the cap is equal to the diameter of the solid key.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the step holes are matched with the positioning components, so that the positions of the entity keys can be fixed by arranging the step holes to be matched with the mounting grooves, the abrasion of the entity keys caused by long-time rotation is prevented, the gap between the entity keys and the protection plate is gradually increased, the waterproof performance is reduced, rainwater or dew penetrating into the top of the protection plate can be effectively isolated by arranging the waterproof components, the circuit board is prevented from being damaged by the penetration of the rainwater, the existing key structure is solved, although the circuit board can be protected by arranging the protection plate to be matched with the shell, the waterproof performance is poor, and in an outdoor environment and a humid environment, the rainwater or dew easily penetrates into the equipment through the entity keys, so that the circuit board is damaged, the service life is prevented or greatly reduced, the economic loss is caused, and the effect of fixing the positions of the entity keys is achieved while the waterproof effect is achieved.

2. According to the utility model, the connecting block can be fixed at the bottom of the solid key by arranging the straight countersunk head screw to be matched with the threaded hole, and the connecting block is arranged in a cross shape and is used for fixing the position of the solid key, so that the problem of abrasion caused by shaking and rotation is prevented, the service life of the solid key is prolonged, and the connecting block made of nylon material has the advantages of good toughness, high tensile strength, corrosion resistance and smooth surface, and is convenient for a user to assemble.

3. According to the utility model, the silica gel pad is arranged, so that the protection board and the circuit board can be isolated, a waterproof effect is achieved, the four mounting grooves which are transversely and equidistantly arranged are used for fixing the functions of the connecting block and the entity keys, the pressed entity keys can be automatically and upwards sprung through the elasticity of the silica gel pad, the movable direction of the internal connecting block can be fixed through the mounting grooves which are in a cross shape, the rotation of the entity keys is prevented, the position of the silica gel pad is fixed through the cooperation of the arranged clamping blocks and the positioning grooves, the offset phenomenon of the silica gel pad during installation is prevented, the convenience and the accuracy during installation are improved, the installation efficiency is improved, and the clamping blocks made of rubber materials have good elasticity, so that the silica gel pad can stretch in the positioning grooves.

Drawings

FIG. 1 is a schematic perspective view of a waterproof key structure according to the present utility model;

FIG. 2 is a schematic view of a three-dimensional explosion structure of the utility model;

FIG. 3 is a schematic view of a three-dimensional exploded cross-sectional structure of the positioning assembly of the present utility model;

fig. 4 is a schematic view of a partial perspective structure of a waterproof assembly according to the present utility model;

fig. 5 is a schematic perspective view of the protection plate according to the present utility model.

In the figure: 1. a housing; 2. a protective plate; 3. a circuit board; 4. touching the key; 5. an entity key; 6. a groove; 7. a stepped hole; 8. capping; 9. a positioning assembly; 90. a connecting block; 91. a straight countersunk head screw; 92. a threaded hole; 10. a clamping groove; 11. a positioning groove; 12. a waterproof assembly; 120. a silica gel pad; 121. a mounting groove; 1210. a reinforcing plate; 122. and (5) clamping blocks.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 5, the waterproof key structure provided by the utility model comprises a shell 1, a protection board 2, a circuit board 3, a touch key 4 and an entity key 5, wherein the protection board 2 is clamped at the top of the shell 1, a groove 6 is formed in one side of the bottom of the protection board 2, the circuit board 3 is fixedly installed inside the shell 1, the touch key 4 is welded at one side of the top of the circuit board 3, the entity key 5 is movably assembled at one side of the top of the protection board 2, a stepped hole 7 is formed in the entity key 5, a cap 8 is arranged at the top of the entity key 5, a positioning component 9 is arranged at the bottom of the entity key 5, a clamping groove 10 is formed in the top of the shell 1, positioning grooves 11 are formed in two sides of the clamping groove 10, and a waterproof component 12 is inserted in the clamping groove 10.

Referring to fig. 3, the positioning assembly 9 includes a connection block 90, a straight countersunk head screw 91 and a threaded hole 92, the threaded hole 92 is formed in the top of the connection block 90, the straight countersunk head screw 91 penetrates through the stepped hole 7 and is in threaded connection with the threaded hole 92, the connection block 90 is located at the bottom of the physical key 5, the connection block 90 is in a cross shape, and the connection block 90 is made of nylon materials.

As a technical optimization scheme of the utility model, the connecting block 90 can be fixed at the bottom of the entity key 5 by arranging the straight countersunk head screw 91 and the threaded hole 92, and the connecting block 90 arranged in a cross shape is used for fixing the position of the entity key 5, so that the problem of abrasion caused by shaking and rotation is prevented, the service life of the entity key 5 is prolonged, and the connecting block made of nylon has the advantages of good toughness, high tensile strength, corrosion resistance and smooth surface, and is convenient for a user to assemble.

Referring to fig. 4, the waterproof assembly 12 includes a silica gel pad 120, the top of the silica gel pad 120 is provided with four mounting grooves 121, the mounting grooves 121 are transversely equidistant, the four mounting grooves 121 are in a cross-shaped arrangement, two sides of the silica gel pad 120 are fixedly connected with clamping blocks 122, the clamping blocks 122 are made of rubber materials, and the thickness of the silica gel pad 120 is zero two millimeters.

According to the technical optimization scheme, the silica gel pad 120 is arranged, the protection board 2 and the circuit board 3 can be isolated, so that a waterproof effect is achieved, the four mounting grooves 121 which are transversely formed at equal intervals are used for fixing the functions of the connecting blocks 90 and the entity keys 5, the pressed entity keys 5 can be automatically sprung up through the elasticity of the silica gel pad 120, the movable direction of the connecting blocks 90 in the inside can be fixed through the mounting grooves 121 which are arranged in a cross shape, the rotating effect of the entity keys 5 is prevented, the positions of the silica gel pad 120 are fixed through the cooperation of the arranged clamping blocks 122 and the positioning grooves 11, the offset phenomenon of the silica gel pad 120 during installation is prevented, the convenience and the accuracy during installation are improved, the installation efficiency is improved, and the clamping blocks 122 made of rubber materials have good elasticity, so that the silica gel pad can stretch in the positioning grooves 11.

Referring to fig. 2 and 3, the periphery of the bottom of the silica gel pad 120 is provided with chamfer angles, the positions of the connecting blocks 90 and the mounting grooves 121 are in one-to-one correspondence, the connecting blocks 90 are inserted into the mounting grooves 121, and the periphery of the bottom of the connecting blocks 90 is provided with chamfer angles.

As a technical optimization scheme of the utility model, through the arrangement of the chamfer at the periphery of the bottom of the silica gel pad 120, the assembly efficiency can be greatly improved, through the mutual cooperation of the connecting block 90 and the mounting groove 121, the position of the entity key 5 is fixed, the installation and the disassembly are convenient, the later maintenance or the replacement of the silica gel pad 120 is convenient, and through the arrangement of the chamfer at the periphery of the bottom of the connecting block 90, the guidance quality can be provided in the assembly process, the assembly time is shortened, the assembly efficiency is improved, the entity key 5 is isolated from the inside of the shell 1, and the waterproof effect is achieved.

Referring to fig. 2 and 5, the periphery of the bottom of the silica gel pad 120 is inserted into the clamping groove 10, the clamping groove 10 and the silica gel pad 120 are square, the positioning groove 11 and the clamping block 122 are semicircular, the clamping block 122 is inserted into the positioning groove 11, and the groove 6 is located on one side of the physical key 5.

As a technical optimization scheme of the utility model, through the plug-in cooperation of the silica gel pad 120 and the clamping groove 10, the waterproof effect is achieved by isolating rainwater or dew, meanwhile, the installation and the disassembly during maintenance are convenient, the practicability is greatly increased, the position of the silica gel pad 120 in the clamping groove 10 can be better fixed through the clamping block 122 and the positioning groove 11 which are arranged in a semicircular shape, and the position of the top of the silica gel pad 120 can be fixed through the groove 6 positioned at one side of the entity key 5.

Referring to fig. 4 and 3, reinforcing plates 1210 are fixedly connected to two sides of the outer surface of the mounting groove 121, the reinforcing plates 1210 are triangular, the reinforcing plates 1210 are made of rubber materials, the cap 8 is inserted into the stepped hole 7, and the diameter of the top of the cap 8 is equal to that of the solid key 5.

As a technical optimization scheme of the utility model, the reinforcing plate 1210 is arranged in a triangle shape and is used for fixing the position of the mounting groove 121, and the cap 8 inserted into the stepped hole 7 is used for sealing the top of the stepped hole 7 to prevent rainwater from penetrating.

The working principle and the using flow of the utility model are as follows: before use, the protection plate 2 is detached from the top of the shell 1, then the clamping blocks 122 on two sides of the silica gel pad 120 are aligned with the positioning groove 11, the peripheries of the silica gel pad 120 are aligned with the clamping grooves 10, the clamping blocks 122 are pressed down into the positioning groove 11, the peripheries of the silica gel pad 120 are pressed into the clamping grooves 10, then the straight countersunk head screws 91 are placed into the stepped holes 7, the connection block 90 is placed at the bottom of the solid key 5, the threaded holes 92 are aligned with the straight countersunk head screws 91, the straight countersunk head screws 91 are screwed into the threaded holes 92 by rotating until the connection block 90 is fixed at the bottom of the solid key 5 without loosening, then the connection blocks 90 are fixed at the bottom of the solid key 5 one by one in the manner, the protection plate 2 after the connection block 90 is installed is placed at the top of the silica gel pad 120, the connection block 90 is aligned with the installation groove 121, the protection plate 90 is pressed down to be fully inserted into the installation groove 121, because the mounting groove 121 and the connecting block 90 are all in a cross shape, the position of the solid key 5 can not rotate under the influence of stress, when the connecting block 90 is fully inserted into the mounting groove 121, the protecting plate 2 is pressed downwards again, the protecting plate 2 is clamped at the top of the shell 1, the periphery of the silica gel pad 120 is completely extruded into the clamping groove 10 under the action of force, the top of the silica gel pad 120 is attached to the inside of the groove 6, at the moment, the gap between the circuit board 3 and the protecting plate 2 is isolated by the silica gel pad 120, thereby effectively isolating rainwater and dew from the circuit board 3, achieving the waterproof effect, inserting one end of the cap 8 into the stepped hole 7, sealing the stepped hole 7, when a person presses the solid key 5 downwards, the connecting block 90 moves downwards, the mounting groove 121 moves downwards under the action of the connecting block 90 through the elasticity of the mounting groove itself, the touch switch is touched by the mounting groove 121 driven by the connecting block 90, so that triggering is realized, and when the entity key 5 is loosened, auxiliary rebound can be performed through the mounting groove 121 made of rubber materials in the process that the entity key 5 rebounds by itself.

To sum up: this waterproof button structure for through setting up the cooperation of shoulder hole 7 and locating component 9, be used for being connected entity button 5 with mounting groove 121, alright fix entity button 5 position, prevent the wearing and tearing of long-time rotation leading to entity button 5, thereby make the clearance between entity button 5 and the protection shield 2 increase gradually, reduce waterproof performance, through setting up waterproof component 12, can effectually keep apart the rainwater or the dew that protection shield 2 top infiltration entered, thereby prevent that circuit board 3 from receiving the infiltration of rainwater and leading to damaging, an existing button structure has been solved, though can protect circuit substrate through setting up the cooperation of protection shield and casing, but its waterproof performance is not good, in outdoor environment and humid environment, rainwater or dew are easy to permeate into equipment through entity button, thereby damage the circuit board, lead to unable use or greatly reduced life, cause economic loss's problem.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a waterproof button structure, includes casing (1), protection shield (2), circuit board (3), touching button (4) and entity button (5), its characterized in that: protection shield (2) joint is at casing (1) top, recess (6) have been seted up to protection shield (2) bottom one side, inside casing (1) is in circuit board (3) fixed mounting, touch button (4) welding is in circuit board (3) top one side, entity button (5) movable assembly is in protection shield (2) top one side, ladder hole (7) have been seted up to entity button (5) inside, entity button (5) top is provided with block (8), entity button (5) bottom is provided with locating component (9), draw-in groove (10) have been seted up at casing (1) top, constant head tank (11) have all been seted up to draw-in groove (10) both sides, waterproof component (12) have been pegged graft to draw-in groove (10) inside.

2. The waterproof key structure according to claim 1, wherein: the locating component (9) comprises a connecting block (90), a straight countersunk head screw (91) and a threaded hole (92), wherein the threaded hole (92) is formed in the top of the connecting block (90), the straight countersunk head screw (91) penetrates through the stepped hole (7) and is in threaded connection with the threaded hole (92), the connecting block (90) is located at the bottom of the entity key (5), the connecting block (90) is in a cross-shaped arrangement, and the connecting block (90) is made of nylon materials.

3. The waterproof key structure according to claim 2, wherein: waterproof subassembly (12) are including silica gel pad (120), mounting groove (121) have been seted up at silica gel pad (120) top, mounting groove (121) are horizontal equidistance and leave and are equipped with four, mounting groove (121) are the cross setting, equal fixedly connected with fixture block (122) in silica gel pad (120) both sides, fixture block (122) are made for the rubber material, silica gel pad (120) thickness is zero point two millimeters.

4. A waterproof key structure according to claim 3, wherein: the silica gel pad is characterized in that chamfer angles are arranged around the bottom of the silica gel pad (120), the connecting blocks (90) are in one-to-one correspondence with the positions of the mounting grooves (121), the connecting blocks (90) are inserted into the mounting grooves (121), and the chamfer angles are arranged around the bottom of the connecting blocks (90).

5. A waterproof key structure according to claim 3, wherein: the utility model discloses a solid button, including draw-in groove (5) and recess (6), draw-in groove (10) are filled up, silica gel is filled up (120) bottom all peg graft around inside draw-in groove (10), draw-in groove (10) all are square setting with silica gel pad (120), constant head tank (11) all are semi-circular setting with fixture block (122), fixture block (122) peg graft inside draw-in groove (11), recess (6) are located solid button (5) one side.

6. A waterproof key structure according to claim 3, wherein: the utility model discloses a mounting groove, including mounting groove (121), mounting groove (121) surface both sides are all fixedly connected with reinforcing plate (1210), reinforcing plate (1210) are triangle-shaped setting, reinforcing plate (1210) are made for the rubber material, block (8) are pegged graft inside shoulder hole (7), block (8) top diameter equals with entity button (5) diameter.

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