CN212749165U - Device for detecting key stroke - Google Patents
Device for detecting key stroke Download PDFInfo
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- CN212749165U CN212749165U CN202021248668.5U CN202021248668U CN212749165U CN 212749165 U CN212749165 U CN 212749165U CN 202021248668 U CN202021248668 U CN 202021248668U CN 212749165 U CN212749165 U CN 212749165U
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Abstract
The utility model discloses a device that button stroke detected, include: the base, the setting element, the contact, the insulator, induction element and power supply unit, wherein, the contact is located the centre of setting element, fix on the base together with the setting element, be used for holding key assembly, be equipped with the insulator between contact and the setting element, induction element is fixed in the top of base, be located the lower part of setting element and contact, be connected with setting element and contact, be used for in key assembly testing process, when the contact of the button in the key assembly touches the contact, produce the sensing signal, power supply unit is located the inside of base, be used for supplying power for induction element, with the button stroke scope of determining key assembly, realize detecting the button stroke before the equipment is the complete machine, reduce the complete machine that the button stroke is not up to standard and the equipment, reduce the loss that the complete machine that is not up to standard caused.
Description
Technical Field
The utility model relates to a digital equipment detects technical field, especially relates to a device that button stroke detected.
Background
In the prior art, in order to guarantee airtightness and waterproofness, a plurality of structures are arranged on a key assembly, such as a key shown in fig. 1, and the key assembly comprises a barrel, a spring, a waterproof sealing ring, a key contact and a spring gasket.
The key assembly has various structures, and the action stroke of the key can be influenced, so that the key is particularly important for detecting whether the action stroke is standard or not. The moving stroke of the key is shown in fig. 2, wherein a diagram in fig. 2 shows a natural state of the key assembly, and b diagram in fig. 2 shows a pressed state of the key assembly.
In the prior art, after the whole machine is assembled, the movable stroke of the key does not reach the standard, and at the moment, the whole machine needs to be repaired, so that parts on the whole machine are easily damaged, and manpower and material resources are wasted.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a device that button stroke detected for detect the button stroke, reduce the not up to standard whole machine of button stroke, reduce the loss that the not up to standard whole machine caused.
The embodiment of the utility model provides a device that button stroke detected, include: the device comprises a base, a positioning piece, a contact piece, an insulator, an induction unit and a power supply device;
the contact element is positioned in the middle of the positioning element, is fixed on the base together with the positioning element and is used for containing a key assembly;
the insulator is arranged between the contact element and the positioning element;
the sensing unit is fixed at the top of the base, is positioned at the lower parts of the positioning piece and the contact piece, is connected with the positioning piece and the contact piece, and is used for generating a sensing signal when a contact of a key in the key assembly contacts the contact piece in the key assembly detection process;
the power supply device is positioned inside the base and used for supplying power to the induction unit.
The utility model discloses in, the contact is connected with the setting element is insulating, key assembly is connected with the setting element is uninsulated, induction element is connected in contact and setting element respectively, when key assembly's button is connected with the contact, indirect realization the contact is connected with the setting element is uninsulated, induction element produces the sensing signal, thereby determine key assembly's button stroke scope, realize detecting the button stroke before the equipment is the complete machine, reduce the complete machine that the button stroke is not up to standard and assemble, reduce the loss that the complete machine that is not up to standard caused.
Optionally, the base is a hollow device.
Above-mentioned utility model in, set up the base into the device of cavity interface, can reduce the weight of base, reduce the cost of base.
Optionally, the base includes an upper padding plate, a lower padding plate and a supporting plate, the supporting plate is vertically disposed between the upper padding plate and the lower padding plate to form a space for placing the sensing unit and the power supply device.
Above-mentioned utility model in, the base has upper and lower backing plate and backup pad to constitute, has reduced the cost of base, has increased the flexibility of base, and the space of formation is used for placing induction element and power supply unit, has reduced the volume of the device that the button stroke detected.
Optionally, the upper padding plate is provided with a threaded hole, and the positioning element, the insulator and the contact element are in threaded connection with the upper padding plate.
Optionally, the contact member is provided with a first counter bore and a first assembly guiding hole, the positioning member is provided with a second counter bore and a second assembly guiding hole, the second counter bore is used for enabling the contact member to be coaxially assembled on the positioning member, the first counter bore is used for fixing the positioning member and the contact member on the base, and the first assembly guiding hole and the second assembly guiding hole are mutually matched and used for limiting the contact member to coaxially rotate on the positioning member.
Above-mentioned utility model, with setting element and the coaxial assembly of contact, through corresponding assembly guiding hole, fix the contact on the setting element, make the contact see can not rotate to make key assembly link to each other with the mounting, and do not contact the contact.
Optionally, a positioning block is arranged on the upper surface of the positioning element and used for positioning the key assembly.
Above-mentioned utility model, through the locating piece that setting element upper surface set up, make the key assembly when placing on the setting element, both played the positioning action, played the simple effect of loading and unloading again.
Optionally, the contact includes a go gauge contact and a no-go gauge contact, the go gauge contact is used to detect a lower limit value of a movement stroke of the key assembly, and the no-go gauge contact is used to detect an upper limit value of the movement stroke of the key assembly.
Above-mentioned utility model discloses in, install logical rule contact and no-go rule contact on the base, obtain the upper and lower limit value of the activity stroke of button according to the contact of difference to the realization is to the detection of button stroke.
Optionally, the distance between the go gauge contact and the contact of the key in the natural state is equal to the lower limit value of the movable stroke of the key; and the distance between the no-go gauge contact piece and the contact of the key in a pressed state is equal to the upper limit value of the movable stroke of the key.
Above-mentioned utility model in, judge the limit value of the activity stroke of button according to the contact of button to the distance of contact, realized the detection to the button stroke, can reduce the key subassembly that the button stroke is not up to standard, and then reduce the complete machine that is not up to standard.
Optionally, the sensing unit includes induction lamp and probe, the probe includes first probe and second probe, first probe with setting element interconnect, the second probe with contact interconnect, first probe with the second probe pass through the wire with the positive negative pole of power is connected respectively the contact of button subassembly in with when the contact of contact, by connecting wire first probe with the second probe switch on power triggers the induction lamp is lighted.
The utility model discloses in, whether mode response setting element through probe and wire links to each other with the contact, and then judges whether the activity stroke of button is in the upper and lower limit value, determines whether up to standard according to the button subassembly, determines the button subassembly that the button stroke is not up to standard, reduces the complete machine that does not reach standard, shows induction signal's mode through the response lamp to make the device of button stroke simple, it is directly perceived to detect.
Optionally, the power supply is secured to the power supply device by an adhesive.
Above-mentioned utility model discloses in, realize convenient change power supply unit, reduce the detection inefficacy that power supply unit damaged and caused, the risk of less hourglass detection button stroke.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and 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 structural diagram of a key assembly according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a key assembly according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a device for detecting a key stroke according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a key assembly according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a device for detecting a key stroke according to an embodiment of the present invention;
fig. 6 is a schematic structural view of a positioning member according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a contact according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in 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.
Fig. 3 exemplarily shows a device for detecting a key stroke, to which an embodiment of the present invention is applied, and as shown in fig. 3, the device for detecting a key stroke includes: the base 100, the positioning member 200, the contact member 300, the insulator 400, the sensing unit 500, and the power supply device 600.
As shown in fig. 3, the contact member 300 is located in the middle of the positioning member 200, and is fixed on the base 100 together with the positioning member 200 for accommodating the key assembly.
An insulator 400 is provided between the contact 300 and the spacer 200 to provide an insulating connection between the contact 300 and the spacer 200.
The sensing unit 500 is fixed on the top of the base 100, is located below the positioning element 200 and the contact element 300, is connected to the positioning element 200 and the contact element 300, and is used for generating a sensing signal when a contact of a key in the key assembly contacts the contact element 300 in the key assembly detection process.
The power supply device 600 is located inside the base 100 and is used for supplying power to the sensing unit 500.
In the utility model, the key assembly is shown in fig. 4, a in fig. 4 is a schematic structural diagram of the key assembly, b in fig. 4 is a partial enlarged view in fig. a, c in fig. 4 is a schematic structural diagram of the key assembly installed on the positioning member 200, the contact member 300 and the insulator 400, with reference to fig. 3 and 4, the positioning member 200 is assembled on the base 100, then the insulator 400 is placed in the positioning member 200, then the contact member 300 is placed in the insulator 400, so that the positioning member 200 is connected with the contact member 300 in an insulating manner, then the key assembly is placed on the positioning member 200 and is connected with the positioning member 200 in a non-insulating manner, the sensing unit 500 is connected with the contact member 300 and the positioning member 200 respectively, when the key of the key assembly is connected with the contact member, the conductive connection between the contact member 300 and the positioning member 200 can be realized, and the sensing unit can generate a sensing signal, so as, the detection of the key stroke is realized before the whole machine is assembled.
Further, based on the above description, fig. 5 exemplarily shows a structure of a device for detecting a key stroke according to an embodiment of the present invention, as shown in fig. 5, the base 100 is a device with a hollow structure, and includes an upper pad 101, a lower pad 102 and a supporting plate 103, wherein the supporting plate 103 is vertically disposed between the upper pad 101 and the lower pad 102, and is connected by a screw thread to form a space for placing the sensing unit 500 and the power supply device 600.
The upper plate 101 is provided with a screw hole, and the positioning member 200, the insulator 400 and the contact member 300 are screw-coupled to the upper plate.
Specifically, the contact element 300 is provided with a first counterbore 301 and a first assembly guide hole 302, the positioning element 200 is provided with a second counterbore 201 and a second assembly guide hole 202, the second counterbore 201 is used for enabling the contact element 300 to be coaxially assembled on the positioning element 200, the first counterbore 301 is used for fixing the positioning element 200 and the contact element 300 on a base, and the first assembly guide hole 301 and the second assembly guide hole 202 are mutually matched for limiting the coaxial rotation of the contact element 300 on the positioning element 200 and preventing the contact element 300 from being in conductive connection with the positioning element 200 due to the contact with a key assembly. It should be noted that before the positioning element 200 is coaxially assembled on the contact element 300 through the second counterbore 201, the insulator 400 is coaxially assembled with the positioning element 200 through the second counterbore 201, and then is coaxially assembled with the contact element 300, so as to achieve the insulating assembly of the positioning element 200 and the contact element 300, and the insulator may be a plastic material.
The positioning member 200 is provided with a positioning block 203 on an upper surface thereof for positioning the key assembly, fig. 6 exemplarily shows a structure of the positioning member, as shown in fig. 6, and fig. 6 is a top view of the positioning member 200.
The contact 300 includes a through contact 310 and a no-go contact 320, the through contact 310 being used to detect a lower limit value of an active stroke of a key of the key assembly, and the no-go contact 320 being used to detect an upper limit value of the active stroke of the key assembly.
Fig. 7 exemplarily shows a structure of a contact, as shown in fig. 7, an X diagram in fig. 7 is a through contact 310, and a Y diagram in fig. 7 is a no-go contact 320, which are different in diameter between the through contact 310 and the no-go contact 320, and whether a key stroke is within a preset stroke range is determined by the size of the diameter, and the shape of the contact is made by profiling according to the shape of the key assembly, so that the key assembly is not connected to the contact 300 after being fixed to the positioning member 200.
Further, the distance between the go gauge contact 310 and the contact of the key in the natural state is equal to the lower limit value of the active stroke of the key, and the distance between the no-go gauge contact 320 and the contact of the key in the pressed state is equal to the upper limit value of the active stroke of the key. For example, the radius of the through contact 310 is 19mm, the radius of the no-go contact 320 is 20mm, and after the key assembly is fixed to the spacer 200, if the straight distance from the contact of the key in the natural state to the through contact 310 is 0.5mm, the straight distance from the contact of the key in the natural state to the through contact 310 is 1.5mm, where the distance from the contact 300 to the contact of the key is the minimum straight distance from the contact to the contact 300.
The sensing unit 500 includes a sensing lamp 501 and a probe 502, the probe 502 includes a first probe and a second probe, the first probe is connected to the positioning member 200, the second probe is connected to the contact member 300, the first probe and the second probe are respectively connected to the positive and negative electrodes of the power supply through wires, when the contact of the key in the key assembly is contacted with the contact member 300, the first probe and the second probe of the connecting wires are connected to the power supply, and the sensing lamp 501 is triggered to light. It should be noted that, in the sensing unit, two or more pairs of the first probe and the second probe are generally installed for standby, so as to prevent detection failure caused by failure of the first probe and the second probe in the sensing unit.
The power supply is fixed to the power supply device 600 by an adhesive. The binder can include glue, can be convenient change power supply unit, realize detection device's simple structure, the stroke is easily surveyed.
It should be noted that the positioning member 200 can be commonly used for the go gauge contact 310 and the no-go gauge contact 320, and the detection of the key stroke will be described below in a specific implementation scenario.
Presetting the range of the movable stroke of the key to be 0.42mm-0.58mm (namely the lower limit value of the key stroke is 0.42mm, the upper limit value is 0.58m), determining the diameters of a go gauge contact element and a no-go gauge contact element according to the range of the movable stroke of the key and the key assembly, setting the diameter of the go gauge contact element to be 19.38mm, the diameter of the no-go gauge contact element to be 19.22mm, fixing the key assembly on a positioning piece, detecting the distance between the contact of the key in the natural state on the current key assembly and the go gauge contact element to be 0.42mm, setting the distance between the contact of the key in the natural state on the current key assembly and the go gauge contact element to be 0.58mm, placing a power supply in a power supply device, connecting the contact of the key and the contact element to lead the contact element to be electrically connected with the positioning key to light the induction lamp to ensure the normal operation of the detection device, then fixing the key assembly to be, and then pressing the key, and if the induction lamp is lightened, determining that the key stroke in the key assembly to be detected is greater than 0.42mm, and meeting the lower limit value of the key stroke, wherein the key assembly is qualified. Otherwise, determining that the key stroke in the key assembly to be detected is less than 0.42mm and less than the lower limit value of the key stroke, and determining that the key assembly to be detected is a defective product, so as to detect the lower limit value of the key stroke in the key assembly.
And then disassembling the article to be detected on the positioning part provided with the go gauge contact element, fixing the article to be detected on the positioning part provided with the no-go gauge contact element, pressing the key, and if the induction lamp is not lighted, determining that the key stroke in the key assembly to be detected is less than 0.58mm, so that the upper limit value of the key stroke is met, and the article to be detected is a qualified article. Otherwise, determining that the key stroke in the key assembly to be detected is larger than 0.58mm and exceeds the upper limit value of the key stroke, and determining that the key assembly to be detected is a defective product, so as to detect the upper limit value of the key stroke in the key assembly.
Through the electrically conductive mode, whether the button stroke is qualified is judged through the response lamp instruction, has examined the activity stroke after the button equipment, has avoidd the risk that the complete machine was assembled back the quick-witted maintenance of tearing open and scrapped five metals.
The utility model discloses, regard the button as the switch, can touch logical rule contact according to the lower limit value of setting for the button stroke to make the whole circuit switch-on, lead to the response lamp bright, with the lower limit value of detecting the button stroke. The no-go contact piece cannot be touched according to the set upper limit value of the key stroke, so that the whole circuit is still in an insulated state, the induction lamp is not lighted, and the upper limit value of the key stroke is detected. Therefore, the detection of the key stroke before the key stroke is assembled into the whole machine is realized, the assembled whole machine with the key stroke not reaching the standard is reduced, and the loss caused by the non-reaching whole machine is reduced.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. A device for detecting a stroke of a key, comprising: the device comprises a base, a positioning piece, a contact piece, an insulator, an induction unit and a power supply device;
the contact element is positioned in the middle of the positioning element, is fixed on the base together with the positioning element and is used for containing a key assembly;
the insulator is arranged between the contact element and the positioning element;
the sensing unit is fixed at the top of the base, is positioned at the lower parts of the positioning piece and the contact piece, is connected with the positioning piece and the contact piece, and is used for generating a sensing signal when a contact of a key in the key assembly contacts the contact piece in the key assembly detection process;
the power supply device is positioned inside the base and used for supplying power to the induction unit.
2. The device for detecting the stroke of a key of claim 1, wherein the base is a hollow device.
3. The apparatus for detecting a stroke of a key of claim 2, wherein the base includes an upper pad, a lower pad and a supporting plate, the supporting plate is vertically disposed between the upper pad and the lower pad to form a space for placing the sensing unit and the power supply device.
4. The apparatus for detecting the stroke of a key according to claim 3, wherein the upper plate is provided with a screw hole, and the positioning member, the insulator and the contact member are screw-coupled to the upper plate.
5. The device for detecting the key stroke according to claim 1, wherein the contact member is provided with a first counterbore and a first assembly guide hole, the positioning member is provided with a second counterbore and a second assembly guide hole, the second counterbore is used for coaxially assembling the contact member on the positioning member, the first counterbore is used for fixing the positioning member and the contact member on the base, and the first assembly guide hole and the second assembly guide hole are mutually matched for limiting the coaxial rotation of the contact member on the positioning member.
6. The device for detecting the key stroke according to claim 1, wherein a positioning block is disposed on the upper surface of the positioning member for positioning the key assembly.
7. The apparatus for key stroke detection according to claim 1, wherein the contacts include a go gauge contact for detecting a lower limit value of an active stroke of a key of the key assembly and a no-go gauge contact for detecting an upper limit value of an active stroke of a key of the key assembly.
8. The apparatus for detecting the key stroke according to claim 7, wherein the distance between the contact of the gauge contact and the contact of the key in the natural state is equal to the lower limit value of the movable stroke of the key; and the distance between the no-go gauge contact piece and the contact of the key in a pressed state is equal to the upper limit value of the movable stroke of the key.
9. The device for detecting the stroke of a key according to any one of claims 1 to 8, wherein the sensing unit includes a sensing lamp and a probe, the probe includes a first probe and a second probe, the first probe is connected to the positioning member, the second probe is connected to the contact member, the first probe and the second probe are respectively connected to an anode and a cathode of a power supply through wires, and when a contact of a key in the key assembly is in contact with the contact member, the first probe and the second probe connected to the wires are connected to the power supply to trigger the sensing lamp to be turned on.
10. The device for key stroke detection according to claim 9, wherein said power source is secured to said power supply device by an adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021248668.5U CN212749165U (en) | 2020-06-30 | 2020-06-30 | Device for detecting key stroke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021248668.5U CN212749165U (en) | 2020-06-30 | 2020-06-30 | Device for detecting key stroke |
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| Publication Number | Publication Date |
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| CN212749165U true CN212749165U (en) | 2021-03-19 |
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| CN202021248668.5U Active CN212749165U (en) | 2020-06-30 | 2020-06-30 | Device for detecting key stroke |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114295972A (en) * | 2021-12-29 | 2022-04-08 | 上海创功通讯技术有限公司 | Key stroke detection device |
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2020
- 2020-06-30 CN CN202021248668.5U patent/CN212749165U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114295972A (en) * | 2021-12-29 | 2022-04-08 | 上海创功通讯技术有限公司 | Key stroke detection device |
| CN114295972B (en) * | 2021-12-29 | 2023-09-05 | 上海创功通讯技术有限公司 | Key travel detection device |
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