CN213637710U - Three-signal output key device for X-ray exposure equipment - Google Patents
Three-signal output key device for X-ray exposure equipment Download PDFInfo
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- CN213637710U CN213637710U CN202022654829.7U CN202022654829U CN213637710U CN 213637710 U CN213637710 U CN 213637710U CN 202022654829 U CN202022654829 U CN 202022654829U CN 213637710 U CN213637710 U CN 213637710U
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Abstract
The utility model relates to a medical treatment button device field, concretely relates to three signal output button devices for X-ray exposure equipment. The method comprises the following steps: the device comprises a device upper shell, an exposure key, a shading key, a double-stroke light touch key, a photoelectric sensor, a key board and a device lower shell; the device upper shell is provided with a mounting hole, and an exposure key is arranged in the mounting hole; the upper surface of the key board is provided with a double-stroke light touch key which is arranged in a corresponding key head, the lower surface of the key board is provided with a photoelectric sensor, and the key board is provided with a through hole for the light screen to pass through and is inserted in the photoelectric sensor, so that the photoelectric sensor is shielded by the light screen; when pressure is applied to the exposure key, the shading plate moves downwards to enable the photoelectric sensor to be conducted by light; the device lower shell is arranged at the bottom of the key board, the device lower shell is matched with the device upper shell, and the key board is electrically connected with the X-ray exposure equipment. The utility model discloses can satisfy the output of three signal simultaneously, intensity safe and reliable satisfies frequent button action.
Description
Technical Field
The utility model relates to a medical treatment button device field, concretely relates to three signal output button devices for X-ray exposure equipment.
Background
In the modern medical field, the requirements on the man-machine interaction key function are very many, the requirement is short in stroke, quick in response, good in hand feeling, direct in feedback and the like, and the photoelectric sensor and the contact key have unique advantages and are widely used on keys of control panels.
The photoelectric sensor is composed of two components, i.e. a light projector and a light receiver, the light projector focuses the light from the lens, and transmits the light to the lens of the light receiver, and then to the receiving sensor, the sensor converts the received light signal into an electrical signal, the telecommunication signal can further perform various switching and control actions, and the basic principle is to apply the signal obtained by the action of shielding the light between the light projector and the light receiver to complete various automatic controls.
When the light touch switch is used, the switch is pressed towards the switch operation direction under the condition of meeting the operation force, the switch is closed and switched on, when the pressure is relieved, the switch is switched off, and the internal structure of the switch is switched on and off by the stress change of the metal elastic sheet. The tact switch has advantages of small contact resistance load, accurate operation force error, diversified specifications, and the like, and is widely applied to electronic equipment, white appliances, and the like.
Currently, such a touch button and a photoelectric sensor are widely used in a medical controller. But cannot implement the three-signal output function. The light touch key and the photoelectric sensor cannot meet the requirement of three-signal output, and the overall upgrade and development of medical display products are severely restricted.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a brand-new output signal is unified, feedback direct three signal output's button structural design to the above-mentioned problem that exists among the prior art.
The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is: a three-signal output key device for an X-ray exposure apparatus, comprising: the device comprises a device upper shell, an exposure key, a shading key, a double-stroke light touch key, a photoelectric sensor and a key board;
the device comprises a device upper shell, a device upper shell and a device lower shell, wherein the device upper shell is provided with a mounting hole, and an exposure key is arranged in the mounting hole;
shading button structure as an organic whole includes: the key comprises a key head, a key connecting piece and a plurality of light screens, wherein the key head is of a hollow structure with a closed top and an open bottom, and is fixedly connected with the light screens through the key connecting piece;
the upper surface of the key board is provided with a double-stroke light touch key, the double-stroke light touch key is arranged in a corresponding key head, when the exposure key is pressed, the shading key is driven to move downwards, and the double-stroke light touch key is triggered to be switched on;
the lower surface of the key board is provided with a photoelectric sensor, the key board is provided with a through hole for a light screen to pass through, and the light screen passes through the through hole and is inserted in the photoelectric sensor, so that the photoelectric sensor is shielded by the light screen; when pressure is applied to the exposure key, the light shielding plate moves downwards to enable the photoelectric sensor to be conducted by light;
the key board is electrically connected with the X-ray exposure equipment.
The edge size of the top surface of the exposure key is larger than that of the mounting hole, so that the upper surface of the exposure key is exposed on the surface of the upper shell of the device;
the exposure key includes: the device comprises an upper cover, a spring, an EVA rubber cushion, a fixing body, a lower cover, a rubber ring and a base;
the upper cover is of a cylindrical structure with an end cover, a circular hole is formed in the side wall of the upper cover, and the spring is sleeved on the cylinder of the upper cover;
the fixing body is of a hollow step-shaped cylindrical structure, and the diameter of the top surface of the fixing body is larger than the mounting hole of the upper shell of the device; when the upper cover is not pressed, the end cover of the upper cover is horizontally arranged on the top surface of the fixed body, and the upper cover is in clearance fit with the inner hole of the fixed body;
the cylinder of the upper cover is matched with the lower cover through the fixing body; an EVA rubber cushion is arranged between the end cover of the upper cover and the fixing body;
the lower cover is provided with a buckle which is clamped in a round hole of the upper cover, the upper cover can move up and down in the fixed body when force is applied, and the upper cover bounces after the pin force is removed; the bottom of the lower cover is provided with an edge with the outer diameter larger than the bottom surface of the fixing body, and the edge is abutted against the fixing body, so that the lower cover cannot be ejected out of the fixing body; the interior of the lower cover is of a hollow structure, and the key head of the shading key is arranged in the lower cover;
the base is provided with an internal thread, the base is in threaded connection with the fixed body, and a rubber ring is further arranged between the base and the fixed body.
The button head is arranged on the button connecting piece, a plurality of light shielding plates are arranged below the button connecting piece, grooves are formed in one sides of the light shielding plates, and the light shielding plates are symmetrically arranged on the bottom surfaces of two ends of the button connecting piece.
The key head is arranged at the center of the key connecting piece, the double-stroke light touch key can be arranged in the key head, and the key head moves downwards to press the double-stroke light touch key, so that signal conduction is realized.
The photoelectric sensors are two in number, the photoelectric sensors are groove-shaped photoelectric sensors, when pressure is applied to the exposure keys, the light shielding plates of the light shielding keys move downwards, the grooves of the light shielding plates correspond to the openings of the groove-shaped photoelectric sensors, and therefore the photoelectric sensors are not shielded, and conduction is achieved.
The double-stroke light touch key is respectively and electrically connected with a connector ready signal pin VK and an exposure signal pin HK of the X-ray exposure equipment; one of the photoelectric sensors is connected with an enable signal pin DMG of the X-ray exposure equipment through an optical coupling circuit, and the other photoelectric sensor is connected with an enable signal pin PRE.
The optical coupling circuit includes: the circuit comprises an inductive switch U31, an inductive switch U32, an optocoupler U33, a bias circuit and a resistor;
the inductive switch U31 and the inductive switch U32 are provided with four pins; a first pin and a third pin of the inductive switch U31 are connected with a bias circuit;
a second pin of the inductive switch U31 is connected with a first pin of an inductive switch U32 and is grounded through a resistor R38, a second pin of the inductive switch U32 is grounded, and a third pin is connected with a first pin of the U31; and a fourth pin at the output end of the inductive switch U31 is connected with a fourth pin at the output end of the inductive switch U32, and is sequentially connected with a connector DMG of the X-ray exposure equipment through an optocoupler U33 and a resistor R37.
The utility model has the following beneficial effects and advantages:
1. the whole structure is simple, and the trigger signals are consistent and stable.
2. The utility model discloses can satisfy the output of three signal simultaneously, overall structure design intensity safe and reliable satisfies frequent button action.
3. The structure has wide popularization and can be widely applied to key structures of various specifications.
Drawings
FIG. 1 is an overall structure diagram of the present invention;
FIG. 2 is an overall exploded view of the present invention;
FIG. 3 is a schematic view of the assembly of the light-shielding button and the key board of the present invention;
FIG. 4 is an assembled cross-sectional view of the light-shielding button and the button plate of the present invention;
FIG. 5 is an exploded view of the exposure button of the present invention;
FIG. 6 is a schematic view of the structure of the light shielding plate of the present invention;
fig. 7 is a schematic circuit diagram of the photoelectric sensor of the present invention;
wherein, 1 is the device epitheca, 2 is the exposure button, 201 is the upper cover, 2011 is the end cover, 2012 is the cylinder, 2013 is the round hole, 202 is the spring, 203 is the EVA cushion, 204 is the fixed body, 205 is the lower cover, 2051 is the buckle, 206 is the rubber ring, 207 is the base, 3 is the shading button, 301 is the key head, 302 is the key connecting piece, 303 is the light screen, 4 is the keypad, 401 is the double-stroke and dabs the button, 402 is the photoelectric sensing ware, 5 is the device inferior valve.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1-2, for the utility model discloses whole structure chart includes: the device comprises a device upper shell 1, an exposure key 2, a shading key 3, a double-stroke light touch key 401, a photoelectric sensor 402 and a key board 4;
wherein, the device upper shell 1 is provided with a mounting hole, and an exposure key 2 is arranged in the mounting hole;
as shown in fig. 6, for the utility model discloses shading button structure sketch map, shading button 3 structure as an organic whole, include: the key head 301 is of a hollow structure with a closed top and an open bottom, and the key head 301 is fixedly connected with the light shielding plates 303 through the key connecting pieces 302;
the upper surface of the key board 4 is provided with a double-stroke light touch key 401, the double-stroke light touch key 401 is arranged in the corresponding key head 301, when the exposure key 2 is pressed, the shading key 3 is driven to move downwards, and the double-stroke light touch key 401 is triggered to be switched on;
the photoelectric sensor 402 is arranged on the lower surface of the key board 4, a through hole for the light shielding plate 303 to pass through is arranged on the key board 4, the light shielding plate 303 passes through the through hole and is inserted into the photoelectric sensor 402, so that the photoelectric sensor 402 is shielded by the light shielding plate 303; when pressure is applied to the exposure key 2, the light shielding plate 303 moves downwards to enable the light receiving and conducting of the photoelectric sensor 402;
the key sheet 4 is electrically connected to the X-ray exposure apparatus.
The upper shell 1 of the device is made of ABS, and the surface of the upper shell is processed in a pattern-drying mode to form a matrix of the whole part.
The key board 4 is composed of a photoelectric sensor 402 and a double-stroke light touch key 401, and realizes the function of signal output.
The exposure key 2 is made of ABS and fixed on the device upper shell 1 to realize the functions of guiding and synchronizing the key.
The shading key 3 is made of ABS and fixed on the exposure key 2 and the key board 4, and after pressure is applied to the exposure key 2, the shading key 3 can act on the photoelectric sensor 402 and the double-stroke light touch key 401 on the key board 4.
The edge size of the top surface of the exposure key 2 is larger than that of the mounting hole, so that the upper surface of the exposure key 2 is exposed on the surface of the device upper shell 1;
as shown in fig. 5, for the exposure button explosion diagram of the present invention, the exposure button 2 includes: the device comprises an upper cover 201, a spring 202, an EVA rubber pad 203, a fixing body 204, a lower cover 205, a rubber ring 206 and a base 207;
the upper cover 201 is a cylindrical structure with an end cover 2011, a circular hole 2013 is formed in the side wall of the upper cover 201, and the spring is sleeved on the cylinder 2012 of the upper cover;
the fixing body 204 is a hollow step-shaped cylindrical structure, and the diameter of the top surface of the fixing body 204 is larger than the mounting hole of the device upper shell 1; when the upper cover 201 is not pressed, the end cap 2011 of the upper cover is horizontally arranged on the top surface of the fixed body 204, and the upper cover 201 is in clearance fit with the inner hole of the fixed body 204;
the cylindrical body 2012 of the upper cover 201 is fitted with the lower cover 205 through the inside of the fixing body 204; an EVA rubber pad 203 is arranged between the end cover 2011 of the upper cover 201 and the fixed body 204;
the lower cover 205 is provided with a buckle 2051, the buckle 2051 is clamped in a round hole 2013 of the upper cover 201, when force is applied, the upper cover 201 can move up and down in the fixed body 204, and the upper cover 201 bounces after the pin force is removed; the bottom of the lower cover 205 is provided with an edge with an outer diameter larger than the bottom surface of the fixing body 204, and the edge is abutted against the fixing body 204, so that the lower cover 205 cannot pop out of the fixing body 204; the lower cover 205 is hollow, and the key head 301 of the shading key 3 is arranged in the lower cover 205;
the base 207 is provided with an internal thread, the base 207 is in threaded connection with the fixing body 204, and a rubber ring 206 is further arranged between the base 207 and the fixing body 204.
As shown in fig. 6, for the utility model discloses shading button structure sketch map, on button head 301 installation key connector 302, key connector 302 has a plurality of light screens 303, has seted up the recess in light screen 303 one side, and the symmetry sets up on key connector 302's both ends bottom surface.
The key head 301 is disposed at the center of the key connector 302, and the two-stroke tact key 401 may be disposed in the key head 301, and the key head 301 moves downward to press the two-stroke tact key 401, so as to achieve signal conduction.
As shown in fig. 1-2, there are two photoelectric sensors 402, the photoelectric sensors 402 are groove-type photoelectric sensors, when pressure is applied to the exposure key 2, the light shielding plate 303 of the light shielding key 3 moves downward, and the groove of the light shielding plate 303 corresponds to the opening of the groove-type photoelectric sensor, so that the photoelectric sensors 402 are not shielded, and conduction is realized.
The double-stroke light touch key 401 is respectively and electrically connected with a connector ready signal pin VK and an exposure signal pin HK of the X-ray exposure equipment; one of the photo-sensors 402 is connected to an enable signal pin DMG of the X-ray exposure apparatus through an opto-coupler circuit, and the other photo-sensor 402 is connected to an enable signal pin PRE.
As shown in fig. 7, for the circuit schematic diagram of the photoelectric sensor of the present invention, the optical coupling circuit includes: the circuit comprises an inductive switch U31, an inductive switch U32, an optocoupler U33, a bias circuit and a resistor;
the inductive switch U31 and the inductive switch U32 are both provided with four pins; a first pin and a third pin of the inductive switch U31 are connected with a bias circuit;
a second pin of the inductive switch U31 is connected with a first pin of the inductive switch U32 and is grounded through a resistor R38, a second pin of the inductive switch U32 is grounded, and a third pin is connected with a first pin of the U31; the fourth pin of the output end of the inductive switch U31 is connected with the fourth pin of the output end of the inductive switch U32, and is sequentially connected with a connector DMG of the X-ray exposure equipment through an optocoupler U33 and a resistor R37.
The working principle of the utility model is as follows:
as shown in fig. 4 to 7, after the exposure key 2 is pressed, the upper cover 201 of the exposure key 2 moves downward, and then the lower cover 205 moves downward, the lower cover 205 drives the light-shielding key 3 to move downward, so that the key head 301 moves downward, the key head 301 moves downward and abuts against the two-stroke light touch key 401 on the key board 4, the preparation signal pin VK and the exposure signal pin HK of the two-stroke light touch key 401 are triggered, and the preparation signal and the exposure signal are controlled to be output to the connector of the X-ray exposure device, so as to realize two-way conduction; meanwhile, the light shielding plate 303 which is arranged on the light shielding key 3 and penetrates through the key board 4 moves downwards, so that the groove of the light shielding plate 303 corresponds to the opening of the groove-shaped photoelectric sensor, the conduction of a light projector and a light receiver in the groove-shaped photoelectric sensor is realized, and the transmission of a third signal is realized through an optical coupling circuit;
when the external force is removed, the upper cover 201 automatically rebounds, the key head 301 moves upwards and then is separated from the two-stroke light touch key 401 on the key board 4, the light shielding key 3 is driven to move upwards through the light shielding plate 303 of the key board 4, the groove wall of the light shielding plate 303 blocks the groove-shaped photoelectric sensor, and three signals are disconnected.
Claims (8)
1. A three-signal output key device for an X-ray exposure apparatus, comprising: the device comprises a device upper shell (1), an exposure key (2), a shading key (3), a double-stroke light touch key (401), a photoelectric sensor (402) and a key board (4);
wherein, the device upper shell (1) is provided with a mounting hole, and an exposure key (2) is arranged in the mounting hole;
shading button (3) structure as an organic whole includes: the key comprises a key head (301), a key connecting piece (302) and a plurality of light shielding plates (303), wherein the key head (301) is of a hollow structure with a closed top and an open bottom, and the key head (301) is fixedly connected with the light shielding plates (303) through the key connecting piece (302);
the upper surface of the key board (4) is provided with a double-stroke light touch key (401), the double-stroke light touch key (401) is arranged in the corresponding key head (301), when the exposure key (2) is pressed, the shading key (3) is driven to move downwards, and the double-stroke light touch key (401) is triggered to be switched on;
the key board (4) is provided with a photoelectric sensor (402) on the lower surface, a through hole for a light shielding plate (303) to pass through is arranged on the key board (4), the light shielding plate (303) passes through the through hole and is inserted in the photoelectric sensor (402), so that the photoelectric sensor (402) is shielded by the light shielding plate (303); when pressure is applied to the exposure key (2), the light shielding plate (303) moves downwards to enable the photoelectric sensor (402) to be conducted;
the key board (4) is electrically connected with the X-ray exposure equipment.
2. The three-signal-output key device for an X-ray exposure apparatus according to claim 1, wherein the edge dimension of the top surface of the exposure key (2) is larger than the dimension of the mounting hole, so that the upper surface of the exposure key (2) leaks out of the surface of the device upper case (1).
3. A three-signal-output key device for an X-ray exposure apparatus according to claim 1, wherein the exposure key (2) comprises: the device comprises an upper cover (201), a spring (202), an EVA rubber cushion (203), a fixing body (204), a lower cover (205), a rubber ring (206) and a base (207);
the upper cover (201) is of a cylindrical structure with an end cover (2011), a round hole (2013) is formed in the side wall of the upper cover (201), and the spring is sleeved on the cylinder (2012) of the upper cover;
the fixing body (204) is of a hollow step-shaped cylindrical structure, and the diameter of the top surface of the fixing body (204) is larger than the mounting hole of the device upper shell (1); when the upper cover (201) is not pressed, the end cover (2011) of the upper cover is horizontally arranged on the top surface of the fixed body (204), and the upper cover (201) is in clearance fit with the inner hole of the fixed body (204);
the cylinder (2012) of the upper cover (201) is matched with the lower cover (205) through the fixing body (204); an EVA rubber pad (203) is arranged between the end cover (2011) of the upper cover (201) and the fixing body (204);
the lower cover (205) is provided with a buckle (2051), the buckle (2051) is clamped in a round hole (2013) of the upper cover (201), the upper cover (201) can move up and down in the fixed body (204) when force is applied, and the upper cover (201) bounces after the canceling force is removed; the bottom of the lower cover (205) is provided with an edge with the outer diameter larger than the bottom surface of the fixing body (204), and the edge is abutted against the fixing body (204) so that the lower cover (205) cannot pop out of the fixing body (204); the interior of the lower cover (205) is of a hollow structure, and a key head (301) of the shading key (3) is arranged in the lower cover (205);
the base (207) is provided with an internal thread, the base (207) is in threaded connection with the fixing body (204), and a rubber ring (206) is further arranged between the base (207) and the fixing body (204).
4. The three-signal output key device for the X-ray exposure apparatus according to claim 1, wherein the key head (301) is mounted on the key connector (302), a plurality of light shielding plates (303) are disposed under the key connector (302), one side of each light shielding plate (303) is provided with a groove, and the light shielding plates are symmetrically disposed on bottom surfaces of two ends of the key connector (302).
5. The three-signal-output key device for the X-ray exposure equipment according to claim 1 or 4, wherein the key head (301) is arranged at the center of the key connecting piece (302), the double-stroke tact key (401) can be arranged in the key head (301), and the key head (301) moves downwards to press the double-stroke tact key (401), so that signal conduction is realized.
6. The three-signal-output key device for the X-ray exposure equipment as claimed in claim 1, wherein there are two photoelectric sensors (402), the photoelectric sensors (402) are groove-type photoelectric sensors, when pressure is applied to the exposure key (2), the light shielding plate (303) of the light shielding key (3) moves downwards, the groove of the light shielding plate (303) corresponds to the opening of the groove-type photoelectric sensor, so that the photoelectric sensors (402) are not shielded and are conducted.
7. The three-signal-output key device for an X-ray exposure apparatus according to claim 1, wherein the two-stroke tact key (401) is electrically connected to a connector ready signal pin VK and an exposure signal pin HK of the X-ray exposure apparatus, respectively; one of the photoelectric sensors (402) is connected with an enable signal pin DMG of the X-ray exposure equipment through an optical coupling circuit, and the other photoelectric sensor (402) is connected with an enable signal pin PRE.
8. The three-signal-output key device for the X-ray exposure apparatus according to claim 7, wherein the optical coupling circuit comprises: the circuit comprises an inductive switch U31, an inductive switch U32, an optocoupler U33, a bias circuit and a resistor;
the inductive switch U31 and the inductive switch U32 are provided with four pins; a first pin and a third pin of the inductive switch U31 are connected with a bias circuit;
a second pin of the inductive switch U31 is connected with a first pin of an inductive switch U32 and is grounded through a resistor R38, a second pin of the inductive switch U32 is grounded, and a third pin is connected with a first pin of the U31; and a fourth pin at the output end of the inductive switch U31 is connected with a fourth pin at the output end of the inductive switch U32, and is sequentially connected with a connector DMG of the X-ray exposure equipment through an optocoupler U33 and a resistor R37.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022654829.7U CN213637710U (en) | 2020-11-17 | 2020-11-17 | Three-signal output key device for X-ray exposure equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022654829.7U CN213637710U (en) | 2020-11-17 | 2020-11-17 | Three-signal output key device for X-ray exposure equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213637710U true CN213637710U (en) | 2021-07-06 |
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ID=76633857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022654829.7U Active CN213637710U (en) | 2020-11-17 | 2020-11-17 | Three-signal output key device for X-ray exposure equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213637710U (en) |
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2020
- 2020-11-17 CN CN202022654829.7U patent/CN213637710U/en active Active
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