CN103091090B - Keycap drawing force testing device with cleaning mechanism - Google Patents
Keycap drawing force testing device with cleaning mechanism Download PDFInfo
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- CN103091090B CN103091090B CN201310007910.8A CN201310007910A CN103091090B CN 103091090 B CN103091090 B CN 103091090B CN 201310007910 A CN201310007910 A CN 201310007910A CN 103091090 B CN103091090 B CN 103091090B
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- valve
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- sucker
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Abstract
The invention discloses a keycap drawing force testing device with a cleaning mechanism. The keycap drawing force testing device with the cleaning mechanism comprises a vacuum pumping room, a vacuum on-off valve, a current divider, a plurality of sucker gas circuits, a blowing cleaning mechanism and a blowing on-off valve. The sucker gas circuits comprise a check valve and a sucker. The vacuum pumping room is connected with the sucker gas circuits through the vacuum on-off valve and the current divider in sequence. A blowing opening of the blowing cleaning mechanism is communicated with a gas circuit between the current divider and the vacuum on-off valve through the blowing on-off valve. According to the keycap drawing force testing device with the cleaning mechanism, cleaning the sucker gas circuits is convenient. A vacuum pump is provided with protection by the addition of a pressure discharging tee joint valve. An influence on working of other gas circuits by air leakage of a few sucker gas circuits can be avoided through design of a sealed container. Improvement of a sucker structure can be increased. Buckling condition of the keycap can be truly reflected at the same time by a sucked area of the keycap.
Description
Technical field
The present invention relates to the keycap drawing force testing device of slight keyboard, particularly relate to a kind of keycap drawing force testing device with cleaning agency.
Background technology
Slight keyboard comprises key plate and keycap, and key plate is provided with circuit structure and button, and keycap to be usually fastened on key plate by the buckle structure of corner and to be positioned at corresponding keys upwards; Because the structure of slight keyboard limits, buckle structure is comparatively small, therefore easily occurs that buckle is bad, and such as do not engage above, buckle dynamics is not enough, reacting in the overall structure of keyboard is that keycap does not flush, keycap from dropping, button are not smooth.Even avoid the buckle of keycap bad to reduce, need to be arranged on after on key plate at keycap, carry out pulling capacity test to keycap, namely use a certain size the power perpendicular to key plate to be pulled outwardly keycap, the buckle structure card of keycap corner still buckle well then represents that keycap buckle is good.
Now pulling capacity test is carried out to keycap and mainly contain two kinds of modes: one is carry out pulling capacity test by manually using finger to pull keycap singly to keycap, owing to being manual detection, and keycap quantity on keyboard is more, therefore easily there is undetected situation, be manually also difficult to ensure that the power applied each keycap is constant in addition; Two is adopt drawing force testing device to coordinate sucker suction key cap surface to apply certain pulling force to keycap by vavuum pump to carry out pulling capacity test, this detection mode uses electrified control can avoid undetected situation, also can keep very fixed in addition to the power that keycap applies.
Present drawing force testing device generally only comprises vavuum pump, current divider, sucker gas circuit and auxiliary support mechanism, wherein sucker gas circuit comprises non-return valve and sucker, the vacuum chamber end of vavuum pump is directly connected with current divider, then bled to sucker by non-return valve, and there are the following problems for this device:
(1) because sucker gas circuit carries out air-breathing work always, easily other impurity in air can be drawn in sucker gas circuit in the process of air-breathing, be difficult to cleaning;
(2) the vacuum chamber space of vavuum pump is less, and the sucker gas circuit separated by current divider is more, once wherein a gas circuit leaks air, it is all very serious on the pressure impact in vacuum chamber, affects the normal work of other gas circuits;
(3) there is negative pressure state before activation in vavuum pump, when starting vavuum pump work, letting out negative pressure mechanism, can cause damage to vavuum pump, affect the service life of vavuum pump owing to not existing;
(4) sucker is circular magnetic chuck, and keycap is square, and therefore keycap is just very limited by the surface of adsorbing; And the test force of keycap puts forth effort the circular annular region that scope is adsorbed by circular magnetic chuck in key cap surface, and the buckle of keycap point is in its corner, and therefore the test of keycap is just true not;
(5) the power size that provides of all suckers is identical, because keycap varies, can not distinguish force.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides a kind of keycap drawing force testing device with cleaning agency, can conveniently clean sucker gas circuit.
Technical scheme: for solving the problems of the technologies described above, the technical solution used in the present invention is:
With the keycap drawing force testing device of cleaning agency, comprise evacuated chamber, vacuum on-off valve, current divider, some sucker gas circuits, air blowing cleaning agency and air blowing on-off valve, described sucker gas circuit comprises non-return valve and sucker; Described evacuated chamber is successively by connecing sucker gas circuit after vacuum on-off valve, current divider; The inflatable mouth of described air blowing cleaning agency is communicated with the gas circuit between current divider and vacuum on-off valve by air blowing on-off valve.
Said apparatus is when normally working; close air blowing on-off valve, open vacuum on-off valve; when needs clean sucker gas circuit; close vacuum on-off valve, open air blowing on-off valve, start air blowing cleaning agency, such air blowing cleaning agency will be blown to sucker gas circuit; the dust blowout that sucker gas circuit is operationally sucked; realize the object of cleaning, the design of vacuum on-off valve simultaneously is also protected the vacuum in evacuated chamber, avoids vacuum to waste.
Described evacuated chamber can be directly the vacuum chamber of vavuum pump self-forming, also can for the seal container set up separately, this case is preferably seal container, two cavity volumes sized by described seal container divides, size two cavity volumes connect corresponding sucker gas circuit respectively by after corresponding vacuum on-off valve, current divider; Two current dividers are connected with corresponding air blowing cleaning agency and air blowing on-off valve separately in the gas circuit between vacuum on-off valve.This is because the keycap of slight keyboard varies, therefore when testing, the power size applied is also different, by providing two kinds of different test force to the setting of the vacuum in size two cavity volumes, can meet different keycap testing requirement by the setting of size two cavity volumes; In addition, the volume of size two cavity volumes is enough large, even if there is a small amount of sucker blowby gas path also can not affect the normal work of other sucker gas circuits like this.
The more preferred structure of one based on said structure is, also comprise vavuum pump, pressure-relief three-way valve, large cavity volume transfer valve and little cavity volume transfer valve, described vavuum pump connects the A end of pressure-relief three-way valve, the R termination air of pressure-relief three-way valve, the P end of pressure-relief three-way valve is communicated with the vacuum orifice of large cavity volume by large cavity volume transfer valve, is communicated with the vacuum orifice of little cavity volume by little cavity volume transfer valve.Pressure-relief three-way valve has been set up between vavuum pump and seal container, when starting vavuum pump work, the P end of first closed pressure-relief three-way valve, after holding the negative pressure in venting vavuum pump by the R of pressure-relief three-way valve, the R end of closed pressure-relief three-way valve opens the P end of pressure-relief three-way valve again, seal container is vacuumized, protection is served to vavuum pump; Selective bulk container or small container can be vacuumized by large cavity volume transfer valve and little cavity volume transfer valve, realize the flexibility controlling, adjust.
Preferably, described large cavity volume transfer valve and little cavity volume transfer valve control vavuum pump and vacuumize the large cavity volume or little cavity volume that do not meet vacuum level requirements, when large cavity volume and little cavity volume do not meet vacuum level requirements simultaneously, control vavuum pump and first vacuumize bulk container.
Preferably, also comprise two vacuum pressure switch, the induction end of two vacuum pressure switch is separately positioned in size two cavity volumes, and the control end of two vacuum pressure switch is connected on the keying loop of vavuum pump.When the vacuum of size cavity volume meets the demands, vacuum pressure switch controls vacuum air pump inoperative, when size cavity volume one of them or when both occurring that vacuum does not meet the demands, corresponding vacuum pressure switch controls vavuum pump work and vacuumizes to corresponding cavity volume, avoid vavuum pump to work all the time, reduce vavuum pump loss.
Preferably, described air blowing cleaning agency is air compressor, can certainly be other blowning installations.
Preferably, described vavuum pump is two, and two vavuum pumps connect the vacuum orifice of seal container respectively by a pressure-relief three-way valve, improves the efficiency vacuumized.
Preferably, described sucker comprises integrated standing part and absorbed portion, described absorbed portion is umbilicate rectangular disk structure, and described standing part is provided with the aspirating hole at the intermediate recess place being communicated with absorbed portion, described aspirating hole is communicated with non-return valve by gas circuit.
The sucker of said structure, using method is identical with general sucker, first sucker is covered on the surface of keycap, then extract the air at absorbed portion intermediate recess place by aspirating hole, like this due to the effect of atmospheric pressure, make absorbed portion and keycap adhesive, drawing sucker is just equivalent to drawing keycap, so just can carry out keycap and carry out pulling capacity test.With existing circular magnetic chuck unlike, when the sucker suction of this case is on keycap, keycap is approximately a straight-flanked ring by the surface of adsorbing, on the one hand, surface due to keycap is also rectangle, therefore length and width by designing sucker suction part just can realize increasing keycap by the object of absorption surface, on the other hand, the test force of keycap puts forth effort scope in key cap surface by the straight-flanked ring region of adsorbing, and the buckle point of keycap is in its corner, therefore, it is possible to carry out pulling capacity test to keycap more realistically.
Preferably, the bight, four, edge of described absorbed portion adopts round-corner transition, more can be conducive to the rapid sealing adsorbed like this.
Described absorbed portion can be the square dish structure of adaptive square keycap, and to increase keycap to greatest extent by the surface of adsorbing, the keycap that the letter key of general keyboard, numerical key use is square keycap, and we claim such sucker to be square structure sucker; Described absorbed portion can be the rectangle dish structure of adaptive rectangle keycap, and to increase keycap to greatest extent by the surface of adsorbing, the keycap that the function key of general keyboard uses is rectangle keycap, and we claim such sucker to be rectangle structure sucker.
Preferably, the meat at one week inside 1mm place, edge of described absorbed portion is thick is 0.2 ~ 0.3mm, and experiment proves that this is more favourable to the seal of absorption.
Preferably, described aspirating hole is the trapezium structure of back-off, to facilitate the installation of gas circuit.
Beneficial effect: the keycap drawing force testing device of band cleaning agency provided by the invention, can conveniently clean sucker gas circuit; Setting up of pressure-relief three-way valve provides protection to vavuum pump; the design of seal container can avoid the gas leakage of a small amount of sucker gas circuit to the work influence of other gas circuits, and the improvement of sucker structure can increase keycap and can be reflected the buckle situation of keycap while of the area of adhesive more truly.
Accompanying drawing explanation
Fig. 1 is a kind of basic structure schematic diagram of the present invention;
Fig. 2 is the structural representation of a kind of application example of the present invention;
Fig. 3 is the perspective view of square structure sucker;
Fig. 4 is the perspective view of rectangle structure sucker.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further described.
Be illustrated in figure 1 a kind of keycap drawing force testing device of slight keyboard, comprise evacuated chamber, vacuum on-off valve, current divider, some sucker gas circuits, air blowing cleaning agency and air blowing on-off valve, described sucker gas circuit comprises non-return valve and sucker; Described evacuated chamber is successively by connecing sucker gas circuit after vacuum on-off valve, current divider; The inflatable mouth of described air blowing cleaning agency is communicated with the gas circuit between current divider and vacuum on-off valve by air blowing on-off valve.Described air blowing cleaning agency is for being preferably air compressor.
Be illustrated in figure 2 a kind of embody rule example of this case, comprise vavuum pump, pressure-relief three-way valve, seal container, vacuum on-off valve, current divider, some sucker gas circuits, vacuum pressure switch, air blowing cleaning agency and air blowing on-off valve, described sucker gas circuit comprises non-return valve and sucker; Wherein seal container divide sized by two cavity volumes.The connection of all parts as shown in the figure, two containers sized by seal container divides, the induction end of two vacuum pressure switch is separately positioned in size two cavity volumes, the control end of two vacuum pressure switch is connected on the keying loop of vavuum pump, described vavuum pump is two, described pressure-relief three-way valve is two, two vavuum pumps connect the A end of two pressure-relief three-way valves respectively, the R termination air of two pressure-relief three-way valves, the P end of two pressure-relief three-way valves converges the A end of the large cavity volume transfer valve of rear access, the vacuum orifice of the large cavity volume of P termination of large cavity volume transfer valve, the A end of the little cavity volume transfer valve of R termination of large cavity volume transfer valve, the vacuum orifice of the little cavity volume of P termination of little cavity volume transfer valve, the R end of little cavity volume transfer valve uses plug to block, parts select model as follows:
Vavuum pump: JP-20H type vavuum pump
Pressure-relief three-way valve: VT317V-5C-02 type S MC three-way magnetic valve
Large cavity volume transfer valve: VT325 type three-way magnetic valve
Little cavity volume transfer valve: VT317 type three-way magnetic valve
Vacuum pressure switch: PZSE30-01-25-M type SMC vacuum digital pressure switch
Vacuum on-off valve: 2W-200-20-AC-5 type Jia Erling magnetic valve
Air blowing on-off valve: VT307-5G type three-way magnetic valve
Wherein large cavity volume transfer valve and little cavity volume transfer valve control vavuum pump vacuumize the large cavity volume or little cavity volume that do not meet vacuum level requirements, when large cavity volume and little cavity volume do not meet vacuum level requirements simultaneously, control vavuum pump and first vacuumize bulk container; The induction end of described vacuum pressure switch is arranged in seal container, control end is connected on the keying loop of vavuum pump.
Described sucker comprises integrated standing part 1 and absorbed portion 2 as shown in Figure 3, Figure 4, described absorbed portion 2 is umbilicate rectangular disk structure, described standing part 1 is provided with the aspirating hole 3 at the intermediate recess place being communicated with absorbed portion 2, described aspirating hole 3 is the trapezium structure of back-off, and aspirating hole is communicated with non-return valve by gas circuit; Four bights, edge of described absorbed portion 2 adopt round-corner transition, and the meat at one week inside 1mm place, edge of absorbed portion 2 thick be 0.2 ~ 0.3mm; For ensureing that absorption evenly, preferably designing this sucker structure is symmetrical before and after arbitrary cross-sectional uniformity and symmetrical structure.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (7)
1. be with the keycap drawing force testing device of cleaning agency, it is characterized in that: comprise evacuated chamber, vacuum on-off valve, current divider, some sucker gas circuits, air blowing cleaning agency and air blowing on-off valve, described sucker gas circuit comprises non-return valve and sucker; Described evacuated chamber is successively by connecing sucker gas circuit after vacuum on-off valve, current divider; The inflatable mouth of described air blowing cleaning agency is communicated with the gas circuit between current divider and vacuum on-off valve by air blowing on-off valve;
Described evacuated chamber is seal container, two cavity volumes sized by described seal container divides, and size two cavity volumes connect corresponding sucker gas circuit respectively by after corresponding vacuum on-off valve, current divider; Two current dividers are connected with corresponding air blowing cleaning agency and air blowing on-off valve separately in the gas circuit between vacuum on-off valve.
2. the keycap drawing force testing device of band cleaning agency according to claim 1, it is characterized in that: also comprise vavuum pump, pressure-relief three-way valve, large cavity volume transfer valve and little cavity volume transfer valve, described vavuum pump connects the A end of pressure-relief three-way valve, the R termination air of pressure-relief three-way valve, the P end of pressure-relief three-way valve is communicated with the vacuum orifice of large cavity volume by large cavity volume transfer valve, is communicated with the vacuum orifice of little cavity volume by little cavity volume transfer valve.
3. the keycap drawing force testing device of band cleaning agency according to claim 2, it is characterized in that: described large cavity volume transfer valve and little cavity volume transfer valve control vavuum pump and vacuumize the large cavity volume or little cavity volume that do not meet vacuum level requirements, when large cavity volume and little cavity volume do not meet vacuum level requirements simultaneously, control vavuum pump and first bulk container is vacuumized.
4. the keycap drawing force testing device of band cleaning agency according to claim 2, it is characterized in that: also comprise two vacuum pressure switch, the induction end of two vacuum pressure switch is separately positioned in size two cavity volumes, and the control end of two vacuum pressure switch is connected on the keying loop of vavuum pump.
5. the keycap drawing force testing device of band cleaning agency according to claim 1, is characterized in that: described air blowing cleaning agency is air compressor.
6. the keycap drawing force testing device of band cleaning agency according to claim 1, it is characterized in that: described sucker comprises integrated standing part (1) and absorbed portion (2), described absorbed portion (2) is umbilicate rectangular disk structure, described standing part (1) is provided with the aspirating hole (3) at the intermediate recess place being communicated with absorbed portion (2), described aspirating hole (3) is communicated with non-return valve by gas circuit.
7. the keycap drawing force testing device of band cleaning agency according to claim 6, is characterized in that: the bight, four, edge of described absorbed portion (2) adopts round-corner transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310007910.8A CN103091090B (en) | 2013-01-09 | 2013-01-09 | Keycap drawing force testing device with cleaning mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310007910.8A CN103091090B (en) | 2013-01-09 | 2013-01-09 | Keycap drawing force testing device with cleaning mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103091090A CN103091090A (en) | 2013-05-08 |
| CN103091090B true CN103091090B (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310007910.8A Expired - Fee Related CN103091090B (en) | 2013-01-09 | 2013-01-09 | Keycap drawing force testing device with cleaning mechanism |
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| CN (1) | CN103091090B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6829468B2 (en) * | 2017-08-31 | 2021-02-10 | 株式会社下瀬微生物研究所 | Treatment method of organic matter containing harmful microorganisms |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08257511A (en) * | 1995-03-23 | 1996-10-08 | Sharp Corp | Spin-type cleaning device |
| JP2002186925A (en) * | 2000-12-21 | 2002-07-02 | Toshio Awaji | Method and device for cleaning path for exhaust gas |
| CN201917515U (en) * | 2010-12-24 | 2011-08-03 | 群光电子(苏州)有限公司 | Device for detecting drawing force of keyboard and keycaps assembling |
| CN102728579A (en) * | 2011-04-02 | 2012-10-17 | 刘显余 | Novel blowing device |
| CN203069365U (en) * | 2013-01-09 | 2013-07-17 | 昆山鸿志犀自动化机电设备有限公司 | Key-cap drawing-force test apparatus with cleaning mechanism |
-
2013
- 2013-01-09 CN CN201310007910.8A patent/CN103091090B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08257511A (en) * | 1995-03-23 | 1996-10-08 | Sharp Corp | Spin-type cleaning device |
| JP2002186925A (en) * | 2000-12-21 | 2002-07-02 | Toshio Awaji | Method and device for cleaning path for exhaust gas |
| CN201917515U (en) * | 2010-12-24 | 2011-08-03 | 群光电子(苏州)有限公司 | Device for detecting drawing force of keyboard and keycaps assembling |
| CN102728579A (en) * | 2011-04-02 | 2012-10-17 | 刘显余 | Novel blowing device |
| CN203069365U (en) * | 2013-01-09 | 2013-07-17 | 昆山鸿志犀自动化机电设备有限公司 | Key-cap drawing-force test apparatus with cleaning mechanism |
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| Publication number | Publication date |
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| CN103091090A (en) | 2013-05-08 |
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Granted publication date: 20150325 Termination date: 20220109 |
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