CN207883565U - A kind of measuring instrument multifunction push key sealing structure - Google Patents
A kind of measuring instrument multifunction push key sealing structure Download PDFInfo
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- CN207883565U CN207883565U CN201820198731.5U CN201820198731U CN207883565U CN 207883565 U CN207883565 U CN 207883565U CN 201820198731 U CN201820198731 U CN 201820198731U CN 207883565 U CN207883565 U CN 207883565U
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- key
- sealing structure
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Abstract
The utility model provides a kind of measuring instrument multifunction push key sealing structure, including shell, controller pedestal, controller upper cover and button assembly, controller pedestal is fixed with shell, controller pedestal is fixed with controller upper cover, lid is equipped with first through hole on controller, button assembly is mounted in first through hole, it is characterized in that, controller pedestal is equipped with screw pole, screw pole is mounted between controller pedestal and controller upper cover and the position setting of corresponding button assembly, it is fixed by screw between screw pole and shell, the outer diameter of screw upper cap nut is less than the internal diameter of first through hole.The utility model realizes the screw concealed position for being arranged and corresponding to controller pedestal in button assembly, can meet the leakproofness of screw disassembling and controller, ensures the overall beautiful of product to reach, meets IP65 degree of protection.
Description
Technical field
The utility model is related to instrument field of sealing technology more particularly to a kind of measuring instrument multifunction push key sealing structures.
Background technology
Measuring instrument and meter original refer to be specifically used to measure water, gas and electricity, oil pressure, flow, temperature precision equipment.Packet
The product for including hundreds of varieties, it is growing with microelectric technique and the communication technology in latter 20 years of eighties of last century.It presses
It includes three Scientific Measurement, legality measurement, engineering metering aspects to divide modern metering according to science.The button of current measuring instrument
Protection level requirements are very high, therefore also very high for the key guard class requirement in instrument.And it is used for fixed instrumentation control
The surface location in controller is arranged in the screw of device processed, influences overall beautiful.
Invention content
The purpose of this utility model is to provide a kind of overall beautiful and high degree of protection measuring instrument multifunction push keys
Sealing structure.
In order to achieve the above object, the utility model adopts the following technical solution：A kind of measuring instrument multifunction push key is close
Seal structure, including shell, controller pedestal, controller upper cover and button assembly, the controller pedestal is fixed with shell, described
Controller pedestal is fixed with controller upper cover, and lid is equipped with first through hole on the controller, and the button assembly is mounted on the
In one through-hole, the controller pedestal is equipped with screw pole, the screw pole be mounted on controller pedestal and controller upper cover it
Between and corresponding button assembly position setting, fixed by screw between the screw pole and shell, the screw upper cap nut
Outer diameter is less than the internal diameter of first through hole.
Further, the button assembly includes keycap, key support and caulking gum, and the is equipped in the key support
Two through-holes and the first blocking portion, the key support outer wall are equipped with third blocking portion, are set on the lateral wall of the key support
There are limiting slot, the keycap to be interference fitted into the second through-hole and arranged with the first blocking portion is close to, set in the caulking gum
Have a third through-hole and the second blocking portion, the interior edge of second blocking portion be mounted in limiting slot and with the inner wall interference of limiting slot
Cooperation.
Further, it is corresponded on the controller base inner wall and is equipped with annular protrusion, the sealing at first through hole position
The inner wall of rubber and the outer wall of annular protrusion are interference fitted.
Further, the internal diameter of the annular protrusion is more than the internal diameter of first through hole, and the internal diameter of the first through hole is more than
The outer diameter of third blocking portion, the outer diameter of the annular protrusion are less than the internal diameter of caulking gum.
Further, side of the caulking gum far from key support is equipped with electronic key, the controller upper cover
Pcb board is inside installed, is equipped with fourth hole on the pcb board and at corresponding third through-hole position, the electronic key is mounted on
Side on pcb board and close to caulking gum.
Further, the first through hole, the second through-hole, third through-hole and fourth hole are coaxially arranged, and first through hole,
The internal diameter of second through-hole, third through-hole and fourth hole is all higher than the outer diameter of screw upper cap nut.
Further, the electronic key be mounted between pcb board and caulking gum and with close to caulking gum one end
It is close to caulking gum arrangement.
Further, the distance of the center of the electronic key to fourth hole central axes is e, the third blocking portion
Outer diameter is d, wherein d >=e.
Further, the distance between cover outer wall is a on the keycap to controller, and the stroke of the electronic key is b,
A and b meets following relationship：A=b+1mm.
Further, fifth hole is equipped in the screw pole, the fifth hole is coaxially arranged and interior with fourth hole
Diameter is identical.
After adopting the above technical scheme, the utility model has the following advantages that：
1, by the way that screw pole is arranged on controller pedestal, and screw pole is mounted on controller pedestal and controller upper cover
Between, and corresponding to the position of button assembly, realized by screw and fixed between controller pedestal and shell, it is hidden to realize screw
The position for being arranged and corresponding to controller pedestal in button assembly is hidden, the sealing of screw disassembling and controller can be met
Property, ensure the overall beautiful of product to reach, meets IP65 degree of protection.
2, by the way that limiting slot is arranged on key support lateral wall, and pass through the interior edge with the second blocking portion on caulking gum
It is interference fitted, and caulking gum is mounted in first through hole, the first blocking portion inside key support with the inner wall of limiting slot
For limiting keycap, and keycap is interference fitted with the second through-hole wall in key support, is squeezed to button cap during use
Pressure realizes that key support crush seal rubber realizes button operation, since keycap is that interference fit is mounted in the second through-hole,
Therefore in actual use, the installation and removal that screw can be realized by dismantling keycap substantially increase screw disassembling installation
Convenience also avoids having damaged button assembly, reduces the cost of detachable maintaining.
3, it is realized on button assembly and controller by the outer wall of the inner wall of caulking gum and annular protrusion interference fit
The sealing of lid further improves the leakproofness of controller.
4, it is more than the internal diameter of first through hole by the way that the internal diameter of annular protrusion is arranged so that the third blocking portion on key support
It is limited in inside controller upper cover, avoids taking entire button assembly out of when dismantling keycap, effectively prevent to key group
The damage of part, the outer diameter of annular protrusion are less than the internal diameter of caulking gum, ensure that close between button assembly and controller upper cover
Envelope, further improves the leakproofness of controller.
5, by covering interior installation pcb board on the controller, and electronic key is installed in pcb board, by key support in keycap
Extruding under, electronic key is squeezed by the deformation realization of caulking gum, to complete control to electronic key, is passed through
Setting button component realizes the control to electronic key, and ensure that can carry out individually more electronic key when electronic key damage
It changes, effectively reduces the cost of repair, since fourth hole being arranged on pcb board, realization carries out spiral shell after being dismantled to keycap
It can be entered by fourth hole in the fifth hole in screw mounting post when the installation of nail, facilitate dismounting and the peace of screw
Dress.
6, by keeping first through hole, the second through-hole, third through-hole and fourth hole coaxially arranged so that screw can be more
It conveniently enters in screw pole, improves the convenience of screw installing and dismounting, while first through hole, the second through-hole, third being led to
The outer diameter that the internal diameter of hole and fourth hole is all higher than screw upper cap nut ensure that screw more easily enters realization in screw pole
Shell and controller pedestal are fixed.
7, by the way that electronic key is mounted between pcb board and caulking gum and is close to close to one end of caulking gum close
Rubber arrangement is sealed, ensure that the stroke of button assembly is consistent with electronic key, improve the use feel of button assembly, carry
The high accuracy to electronic key control avoids button assembly from pressing diastema.
8, the distance of the center of electronic key to fourth hole central axes is e, and the outer diameter of third blocking portion is d, setting d >=
E, it is ensured that electronic key can fully receive the extruding force of key support, ensure that the normal pressing operation of electronic key,
It is too small and cause to press that insufficient or pressing is incomplete to avoid electronic key stress surface, effectively increases the peace of controller operation
Quan Xing.
9, it is a by the distance between cover outer wall on keycap to controller, the stroke of electronic key is b, meets a=b+
1mm, it is ensured that keycap protrudes from key support setting so that keycap is easily found, while convenient for the pressing of keycap, optimizing keycap
The feel of pressing.
10, by the way that fifth hole is arranged in screw pole so that fifth hole is coaxially arranged with fourth hole and internal diameter phase
Together, it ensure that screw installation and removal are more convenient efficiently.
Description of the drawings
The utility model is described in further detail below in conjunction with the accompanying drawings：
Fig. 1 be the utility model proposes a kind of measuring instrument multifunction push key sealing structure structural schematic diagram；
Fig. 2 be the utility model proposes a kind of measuring instrument multifunction push key sealing structure partial sectional view；
Fig. 3 be the utility model proposes a kind of measuring instrument multifunction push key sealing structure in part knot at first through hole
Structure schematic diagram；
Fig. 4 be the utility model proposes a kind of measuring instrument multifunction push key sealing structure in button assembly explosion
Figure；
Fig. 5 be the utility model proposes a kind of measuring instrument multifunction push key sealing structure in key support partial cutaway
View；
Fig. 6 be the utility model proposes a kind of measuring instrument multifunction push key sealing structure in button assembly section view
Figure；
Fig. 7 be the utility model proposes a kind of measuring instrument multifunction push key sealing structure in key support main view
Figure；
Fig. 8 be the utility model proposes a kind of measuring instrument multifunction push key sealing structure in screw vertical view；
Marked the names of the parts are as follows in figure：
1- shells, 2- controller pedestals, 3- controller upper covers, 4- button assemblies, 5- first through hole, 6- screw poles, 7- spiral shells
Nail, 8- annular protrusions, 9- electronic keys, 10-PCB plates, 11- fourth holes, 12- fifth holes；
401- keycaps, 402- key supports, 403- caulking gums, 404- third through-holes, the first blocking portions of 405-, 406-
Three blocking portions, 407- limiting slots, 408- third through-holes, the second blocking portions of 409-.
Specific implementation mode
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
As shown in Figs. 1-5, measuring instrument multifunction push key sealing structure provided by the utility model, including shell 1, control
Device pedestal 2, controller upper cover 3 and button assembly 4, controller pedestal 2 are fixed with shell 1, controller pedestal 2 and controller upper cover
3 fix, and controller upper cover 3 is equipped with first through hole 5, and button assembly 4 is mounted in first through hole 5, and controller pedestal 2 is equipped with
Screw pole 6, screw pole 6 is mounted between controller pedestal 2 and controller upper cover 3 and the position setting of corresponding button assembly 4, spiral shell
It is fixed by screw 7 between post 6 and shell 1, the outer diameter of 7 upper cap nut of screw is less than the internal diameter of first through hole 5.By controlling
Screw pole 6 is set on device pedestal 2, and screw pole 6 is mounted between controller pedestal 2 and controller upper cover 3, and corresponds to and presses
The position of key asembly 4, realized by screw 7 it is fixed between controller pedestal 2 and shell 1, realize screw 7 hide setting by
Key asembly 4 corresponds to the position of controller pedestal 2, can meet the leakproofness of screw disassembling and controller, to reach
Ensure the overall beautiful of product, meets IP65 degree of protection.
In the present embodiment, button assembly 4 includes keycap 401, key support 402 and caulking gum 403, key support 402
It is inside equipped with the second through-hole 404 and the first blocking portion 405,402 outer wall of key support is equipped with third blocking portion 406, key support
402 lateral wall is equipped with limiting slot 407, keycap 401 be interference fitted into the second through-hole 404 and be close to the first blocking portion
405 arrangements, caulking gum 403 is interior to be equipped with third through-hole 408 and the second blocking portion 409, and the interior edge of the second blocking portion 409 is mounted on
It is interference fitted in limiting slot 407 and with the inner wall of limiting slot 407.By the way that limiting slot is arranged on 402 lateral wall of key support
407, and by being interference fitted with the interior edge of the second blocking portion 409 on caulking gum 403 and the inner wall of limiting slot 407, and will be close
It seals rubber 403 to be mounted in first through hole 5, the first blocking portion 405 inside key support 402 is for limiting keycap 401, and key
Second through-hole, 404 inner wall is interference fitted in cap 401 and key support 402, button cap squeeze during use realize by
402 crush seal rubber 403 of key holder realizes button operation, since keycap 401 is that interference fit is mounted on the second through-hole 404
It is interior, therefore in actual use, the installation and removal of screw 7 can be realized by dismantling keycap 401, substantially increase screw disassembling
The convenience of installation also avoids having damaged button assembly 4, reduces the cost of detachable maintaining.
In the present embodiment, is corresponded on 2 inner wall of controller pedestal and be equipped with annular protrusion 8, caulking gum at 5 position of first through hole
403 inner wall is interference fitted with the outer wall of annular protrusion 8.Pass through the outer wall interference of the inner wall and annular protrusion 8 of caulking gum 403
Cooperation realizes the sealing of button assembly and controller upper cover 3, further improves the leakproofness of controller.
In the present embodiment, the internal diameter of annular protrusion 8 is more than the internal diameter of first through hole 5, and the internal diameter of first through hole 5 is more than third
The outer diameter of blocking portion 406, the outer diameter of annular protrusion 8 are less than the internal diameter of caulking gum 403.By the internal diameter that annular protrusion 8 is arranged
More than the internal diameter of first through hole 5 so that the third blocking portion 406 on key support 402 is limited in inside controller upper cover 3,
It avoids taking entire button assembly 4 out of when dismantling keycap 401, effectively prevents the damage to button assembly 4, annular protrusion 8
Outer diameter be less than caulking gum 403 internal diameter, ensure that the sealing between button assembly 4 and controller upper cover 3, further increase
The leakproofness of controller.
In the present embodiment, side of the caulking gum 403 far from key support 402 is equipped with electronic key 9, controller upper cover
Pcb board 10 is installed in 3, fourth hole 11 is equipped on pcb board 10 and at 408 position of corresponding third through-hole, electronic key 9 is installed
On pcb board 10 and close to the side of caulking gum 403.It is installed by installing pcb board in lid 3 on the controller, and in pcb board
Electronic key 9, by key support 402 under the extruding of keycap 401, by caulking gum 403 deformation realize to electronic key 9 into
Row squeezes, and to complete the control to electronic key 9, realizes the control to electronic key 9 by setting button component 4, ensures
Electronic key 9 can be individually replaced electronic key 9 when damaging, and effectively reduce the cost of repair, due on pcb board 10
Fourth hole 11 is set, realizes and can be entered by fourth hole 11 when carrying out the installation of screw 7 after being dismantled to keycap 401
Into the fifth hole 12 in screw mounting post 6, the disassembly and installation of screw 7 is facilitated.
It is understood that pcb board 10 is equipped with and active key holder multiple fourth holes 11 correspondingly, through-hole
Weld electronic key in edge.Controller pedestal be equipped with 11 one-to-one screw pole 6 of fourth hole, the in screw pole 6 the 5th
Through-hole 12 and fourth hole 11 are coaxially arranged.
In the present embodiment, when carrying out mounting screw, when mounting screw 7, for screw 7 successively from the second through-hole 404, third is logical
Hole 408, fifth hole 12, which enters in screw pole 6, realizes that controller pedestal 2 is fixed to shell 1 by screw 7 and the cooperation of screw pole 6
On, to realize the fixation of controller.When electronic key 9 to be opened, keycap 401 is pressed, keycap 401 drives key support
402, key support 402 pushes down caulking gum 403, and the deformation of caulking gum 403 moves down, and caulking gum 403 acts on electronics
On button 9, the opening of electronic key 9 is realized.Pressure is unclamped, key support 402 is extensive under the rebound effect of caulking gum 403
Origin position is arrived again.When knockout screw 7, the tamper tool of keycap 401, screwdriver sequentially passes through the second through-hole 404, and third is logical
Hole 408 and fifth hole 12 realize the dismounting to screw 7.After screw 7 is fixed again, it is only necessary to which the keycap 401 more renewed is i.e.
Can, the screw 7 for static controller is realized, can be arranged and correspond to the position on controller pedestal 2 in button assembly, and can
It realizes the dismounting to screw and ensures the leakproofness of controller, ensure the overall beautiful of product to reach.
In the present embodiment, electronic key 9 be mounted between pcb board 10 and caulking gum 403 and with close to caulking gum 403
One end be close to caulking gum 403 arrangement.By by electronic key 9 be mounted between pcb board 10 and caulking gum 403 and with by
The arrangement of caulking gum 403 is close in one end of nearly caulking gum 403, ensure that the stroke of button assembly 4 keeps one with electronic key 9
It causes, improves the use feel of button assembly 4, improve the accuracy controlled electronic key 9, button assembly 4 is avoided to press
Diastema.
In the present embodiment, first through hole 5, the second through-hole 404, third through-hole 408 and fourth hole 11 are coaxially arranged, and the
One through-hole 5, the second through-hole 404, third through-hole 408 and fourth hole 11 internal diameter be all higher than the outer diameter of 7 upper cap nut of screw.Pass through
Keep first through hole 5, the second through-hole 404, third through-hole 408 and fourth hole 11 coaxially arranged so that screw 6 can be more convenient
It enters in screw pole 6, improves the convenience of 6 installing and dismounting of screw, while by first through hole 5, the second through-hole 404, third
The outer diameter that the internal diameter of through-hole 408 and fourth hole 11 is all higher than 7 upper cap nut of screw ensure that screw 6 more easily enters screw
It is realized in column 6 and fixes shell 1 and controller pedestal 2.
In the present embodiment, fifth hole 12 is equipped in screw pole 6, the fifth hole 12 and fourth hole 11 are coaxially arranged
And internal diameter is identical.Pass through and fifth hole 12 be set in the screw pole 6 so that fifth hole 12 it is coaxially arranged with fourth hole 11 and
Internal diameter is identical, and it is more convenient efficient to ensure that screw 7 mounts and dismounts.
With reference to Fig. 6, in the present embodiment, the distance between keycap 401 to 3 outer wall of controller upper cover is a, electronic key 9
Stroke is that b, a and b meet following relationship：A=b+1mm.It is a by the distance between keycap 401 to 3 outer wall of controller upper cover,
The stroke of electronic key 9 is b, meets a=b+1mm, it is ensured that keycap 401 protrudes from the setting of key support 402 so that keycap 401
It is easily found, while convenient for the pressing of keycap, optimizing the feel of the pressing of keycap 401.
With reference to Fig. 7 and Fig. 8, in the present embodiment, the distance of center to 11 central axes of fourth hole of electronic key 9 is e, institute
The outer diameter for stating third blocking portion 406 is d, wherein d >=e.The distance of the center of electronic key 9 to 11 central axes of fourth hole is
The outer diameter of e, third blocking portion 406 are d, d >=e are arranged, it is ensured that electronic key 9 can fully receive key support 402
Extruding force ensure that the normal pressing operation of electronic key 9, avoid 9 stress surface of electronic key it is too small and cause pressing do not fill
Divide or pressing is incomplete, effectively increases the safety of controller operation.
In addition to above preferred embodiment, the utility model also has other embodiments, and those skilled in the art can root
It is made various changes and modifications according to the utility model, without departing from the spirit of the utility model, the utility model should all be belonged to
Range defined in appended claims.
Claims (10)
1. a kind of measuring instrument multifunction push key sealing structure, including shell, controller pedestal, controller upper cover and key group
Part, the controller pedestal are fixed with shell, and the controller pedestal is fixed with controller upper cover, are set on lid on the controller
There are first through hole, the button assembly to be mounted in first through hole, which is characterized in that the controller pedestal is equipped with screw
Column, the screw pole is mounted between controller pedestal and controller upper cover and the position setting of corresponding button assembly, the spiral shell
It is fixed by screw between post and shell, the outer diameter of the screw upper cap nut is less than the internal diameter of first through hole.
2. press key sealing structure according to claim 1, which is characterized in that the button assembly includes keycap, button branch
Frame and caulking gum, are equipped with the second through-hole and the first blocking portion in the key support, and the key support outer wall is equipped with the
Three blocking portions, the lateral wall of the key support are equipped with limiting slot, the keycap be interference fitted into the second through-hole and with it is tight
The first blocking portion arrangement is pasted, third through-hole and the second blocking portion, the interior edge of second blocking portion are equipped in the caulking gum
Inner wall interference fit in limiting slot and with limiting slot.
3. press key sealing structure according to claim 2, which is characterized in that corresponding first on the controller base inner wall
Annular protrusion is equipped at lead to the hole site, the inner wall of the caulking gum and the outer wall of annular protrusion are interference fitted.
4. press key sealing structure according to claim 3, which is characterized in that it is logical that the internal diameter of the annular protrusion is more than first
The internal diameter in hole, the internal diameter of the first through hole are more than the outer diameter of third blocking portion, and the outer diameter of the annular protrusion is less than sealing rubber
The internal diameter of glue.
5. press key sealing structure according to claim 2, which is characterized in that the caulking gum far from key support one
Side is equipped with electronic key, is equipped with pcb board in the controller upper cover, on the pcb board and at corresponding third through-hole position
Equipped with fourth hole, the electronic key is mounted on the side on pcb board and close to caulking gum.
6. press key sealing structure according to claim 5, which is characterized in that the first through hole, the second through-hole, third are logical
Hole and fourth hole are coaxially arranged, and first through hole, the second through-hole, third through-hole and fourth hole internal diameter be all higher than on screw
The outer diameter of nut.
7. press key sealing structure according to claim 5, which is characterized in that the electronic key is mounted on pcb board and close
It is close to caulking gum arrangement between envelope rubber and with close to one end of caulking gum.
8. press key sealing structure according to claim 5, which is characterized in that the center of the electronic key to fourth hole
The distance of central axes is e, and the outer diameter of the third blocking portion is d, wherein d >=e.
9. press key sealing structure according to claim 5, which is characterized in that on the keycap to controller between cover outer wall
Distance be a, the stroke of the electronic key is that b, a and b meet following relationship：A=b+1mm.
10. press key sealing structure according to claim 1, which is characterized in that be equipped with fifth hole, institute in the screw pole
State that fifth hole is coaxially arranged with fourth hole and internal diameter is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820198731.5U CN207883565U (en) | 2018-02-05 | 2018-02-05 | A kind of measuring instrument multifunction push key sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820198731.5U CN207883565U (en) | 2018-02-05 | 2018-02-05 | A kind of measuring instrument multifunction push key sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207883565U true CN207883565U (en) | 2018-09-18 |
Family
ID=63510042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820198731.5U Active CN207883565U (en) | 2018-02-05 | 2018-02-05 | A kind of measuring instrument multifunction push key sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207883565U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108257808A (en) * | 2018-02-05 | 2018-07-06 | 金卡智能集团股份有限公司 | A kind of measuring instrument multifunction push key sealing structure |
| CN113808872A (en) * | 2020-06-22 | 2021-12-17 | 中车唐山机车车辆有限公司 | A outer button device of car and rail vehicle for rail vehicle |
-
2018
- 2018-02-05 CN CN201820198731.5U patent/CN207883565U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108257808A (en) * | 2018-02-05 | 2018-07-06 | 金卡智能集团股份有限公司 | A kind of measuring instrument multifunction push key sealing structure |
| CN113808872A (en) * | 2020-06-22 | 2021-12-17 | 中车唐山机车车辆有限公司 | A outer button device of car and rail vehicle for rail vehicle |
| CN113808872B (en) * | 2020-06-22 | 2023-10-31 | 中车唐山机车车辆有限公司 | Out-of-car button device for railway vehicle and railway vehicle |
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