CN211294904U - Probe switching device - Google Patents

Abstract

The utility model provides a probe auto-change over device, including two at least change over switch subassemblies and two at least probes, the change over switch subassembly is corresponding with the probe, and the change over switch subassembly includes first switch part and second switch part, and first switch part is equipped with the application of force piece, and second switch part mainly comprises two stationary contactor and bridging contactor, and the probe that the change over switch subassembly corresponds is connected with a stationary contactor. From this, can use the change over switch subassembly to switch the probe, need not to use the relay, and act on bridging contactor through the application of force piece to this connects first switch part and second switch part, can reduce holistic signal consumption, is favorable to strengthening the transmission effect, can not produce the signal cross interference that leads to moreover, and image quality is higher. Correspondingly, the required power is reduced, the number of lines is reduced, and the fixed cost is reduced. Moreover, the heating is lower, and the service life of the equipment is ensured.

Description

Probe switching device

Technical Field

The utility model relates to a switching mechanism especially indicates a probe auto-change over device.

Background

At present, in an ultrasonic detection device, a relay is generally adopted to control the switching of probes, and the principle is that a corresponding relay group is configured for each probe, and a system switches the probes by controlling the state of the relay group. If the probe is 128 array elements, 128 relay units are needed to control the relay group of the probe. The relay set can also match a 128-element probe according to two state modes of the relay. When the number of the probes is 3, a group of relay groups capable of meeting the probe channels needs to be added.

If there are 5 probes, every probe has 128 passageways, when using the relay to control the switching, needs 3 groups of relays, and the relay number reaches 384, and the quantity is fairly huge, and the circuit is many, leads to the wiring degree of difficulty big, and inconvenient production installation moreover, the signal cross interference that leads to easily influences image quality.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the switching device of the probe equipment is provided, and the problems of signal transmission attenuation and interference caused by a complex circuit of a relay are solved.

In order to solve the technical problem, the utility model discloses a technical scheme be: a probe switching device comprises at least two switch components and at least two probes, wherein the switch components correspond to the probes. The switching switch assembly comprises a first switch component and a second switch component, the first switch component is provided with a force application block, the second switch component mainly comprises a bridging contactor and two fixed contactors, a probe corresponding to the switching switch assembly is connected with one fixed contactor, and the bridging contactor can be controlled to be in contact with or separated from the two fixed contactors by moving the bridging contactor;

wherein: when the force application block is pressed on the bridging contactor, the bridging contactor is contacted with the two fixed contactors, and the two fixed contactors are electrically connected;

wherein: the electric signal reaches the corresponding probe through the bridging contactor and the two fixed contactors, the corresponding probe converts the acquired information into the electric signal and transmits the electric signal back, and the current probe is switched to the probe corresponding to the switch assembly.

Specifically, the bridging contactor includes a pressing block and a connecting bridge, the pressing block is connected with the connecting bridge, the connecting bridge is close to the two fixed contactors, the connecting bridge is mainly made of a conductive material, the pressing block is mainly made of a non-conductive material, the force application block applies pressure to the pressing block, and the pressing block pushes the connecting bridge.

Preferably, the probe switching device further comprises at least one switching rotating shaft; the first switch parts are arranged along the axial direction of the switching rotating shaft.

Further, the first switch components are circumferentially distributed on the switching rotating shaft.

Further, the second switch component is provided with an elastic structure, the elastic structure is arranged between the two fixed contactors, and the elastic structure corresponds to the bridging contactor.

Preferably, the probe switching device further comprises a probe control board, at least two first sensing parts and at least two second sensing parts, the first sensing parts are circumferentially distributed on the switching rotating shaft, and the second sensing parts are arranged on the probe control board;

the first sensing component comprises a sensor, the second sensing component comprises a signal source, the sensor corresponds to the change-over switch component, and the sensor is used for controlling the on-off of the change-over switch component.

Optionally, a roller is arranged on the outer side of the force application block.

Further, the probe switching device further comprises a fixing plate, the probe control panel is fixed on the fixing plate, the switching rotating shaft is connected with the fixing plate in a hanging mode, and the probe control panel is arranged between the switching rotating shaft and the fixing plate.

Furthermore, the probe switching device also comprises a rotating structure and a movable structure, the power structure drives the switching rotating shaft through the rotating structure, and the sensor controls the rotation of the rotating structure;

the power structure comprises a motor, and the rotating structure comprises one or more of a coupler, a gear mechanism and a rope connecting mechanism.

In the above, the sensor is a hall sensor, and the signal source is a magnet.

The beneficial effects of the utility model reside in that: use the change over switch subassembly to switch the probe, need not to use the relay, and act on bridging contactor through the application of force piece to this connects first switch part and second switch part, can reduce holistic signal consumption, is favorable to strengthening the transmission effect, can not produce the signal cross interference that leads to moreover, and image quality is higher. Correspondingly, the required power is reduced, the number of lines is reduced, and the fixed cost is reduced. Moreover, the heating is lower, the reliability of the equipment is guaranteed, and the service life of the equipment can be prolonged.

Drawings

The following detailed description of the specific structure of the present invention with reference to the accompanying drawings

Fig. 1 is a block diagram of a first embodiment of a probe switching device according to the present invention;

fig. 2 is a schematic structural diagram of a first embodiment of the probe switching device of the present invention;

fig. 3 is a structural diagram of a switching rotating shaft of a second embodiment of the probe switching device of the present invention;

fig. 4 is a schematic view of the connection between the probe and the probe control board according to the third embodiment of the probe switching device of the present invention;

fig. 5 is a cross-sectional structural view of a third embodiment of the probe switching device of the present invention;

fig. 6 is an exploded view of a third embodiment of the probe switching device of the present invention;

100-a first switching component; 110-a force application block; 120-switching the rotating shaft; 130-a motor; 141-a magnet; 150-a scaffold; 200-a second switching component; 210-bridging contacts; 220-a first stationary contactor; 221-the corresponding contact of the first fixed contactor; 230-a second stationary contactor; 231-corresponding contacts of the second stationary contactor; 241-Hall sensor; 250-a spring; 260-rigid and flexible plates; 270-probe control board; 300-a fixed plate; 400-ultrasonic probe.

Detailed Description

In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

Referring to fig. 1 and 2, fig. 1 is a block diagram illustrating a first embodiment of a probe switching device according to the present invention; fig. 2 is a schematic structural diagram of a first embodiment of the probe switching device of the present invention. In order to solve the technical problem, the utility model discloses a technical scheme be: an ultrasonic probe 400 switching device comprises at least two switching switch assemblies and at least two ultrasonic probes 400, wherein the switching switch assemblies correspond to the ultrasonic probes 400, each switching switch assembly comprises a first switch part 100 and a second switch part 200, the first switch part 100 is provided with a force application block 110, the second switch part 200 mainly comprises a first fixed contactor 220, a second fixed contactor 230 and a bridging contactor 210, the bridging contactor can be controlled to be in contact with or separated from the two fixed contactors by moving the bridging contactor 220, and the ultrasonic probes 400 corresponding to the switching switch assemblies are connected with the first fixed contactor 220;

wherein: when the force application block 110 is pressed on the bridging contactor 210, the bridging contactor 210 contacts with the first fixed contactor 220 and the second fixed contactor 230, respectively, to electrically connect the first fixed contactor 220 and the second fixed contactor 230,

wherein: the electrical signal passes through the bridging contactor 210 and the two fixed contactors to reach the corresponding probes, and the corresponding probes convert the acquired information into electrical signals and transmit the electrical signals back, so as to switch the current ultrasonic probe 400 into the ultrasonic probe 400 corresponding to the switch assembly.

Specifically, the bridging contactor 210 includes a pressing block and a bridging plate, the pressing block is connected to the bridging plate, and the bridging plate is close to the first fixed contactor 220 and the second fixed contactor 230. The bridge plate serves as a bridge for conducting the circuit, the lamination block is made of a non-conductive material, and the force application block 110 acts on the lamination block.

Therefore, the ultrasonic probe 400 can be switched by using the change-over switch assembly without using a relay, and acts on the bridging contactor 210 through the force application block 110, so that the first switch component 100 and the second switch component 200 are connected, the overall signal consumption can be reduced, the transmission effect can be enhanced, the signal cross interference caused by the signal cross interference can not be generated, and the image quality is high. Correspondingly, the required power is reduced, the number of lines is reduced, and the fixed cost is reduced. Moreover, the heat dissipation performance is excellent, and the reliability of the equipment is guaranteed.

In this embodiment, the force application block 110 may be controlled by various devices to press the bridging contactor 210.

Further, please refer to fig. 3, fig. 3 is a structural diagram of a switching shaft 120 of a second embodiment of the probe switching device of the present invention.

The ultrasound probe 400 switching device further comprises at least one switching shaft 120; the first switching member 100 is arranged along the axial direction of the switching rotary shaft 120.

The first switch member 100 is arranged on the switching shaft 120, that is, the switch assembly can be operated by rotating the switching shaft 120, so as to control the force application block 110 of the first switch member 100 to press the corresponding second switch member 200, and conduct the corresponding circuit, thereby switching to the corresponding ultrasonic probe 400.

The first switch member 100 is arranged along the axial direction of the switching shaft 120, so that the length advantage of the switching shaft 120 can be exerted, and the pressing can be performed quickly. It can be understood that, when the force application blocks 110 of the first switch component 100 are horizontally arranged, the second components are circumferentially distributed outside the switching rotating shaft 120 along the axial direction of the switching rotating shaft 120. The overall shape resembles a barrel structure with a switching shaft 120 disposed therein.

Alternatively, if the force application block 110 is not sized to apply a force to the bridging contactor 210, a strip may be disposed on the bridging contactor 210 to reduce the difficulty of switching. Alternatively, the shape of the force application block 110 of the corresponding first switch member 100 may be changed when the second member has to be distributed in some irregularity for a particular requirement. Such as changing the block shape into a hollow barrel, strip, spiral, etc.

Specifically, the bridging contactor 210 corresponds to a position between the first fixed contactor 220 and the second fixed contactor 230, and the contact on the connecting block of the bridging contactor 210, the corresponding contact 221 of the first fixed contactor, and the corresponding contact 231 of the second fixed contactor are all in a normally open state. Each connecting plate is connected to a corresponding ultrasonic probe 400 socket, and the ultrasonic probes 400 are switched by switching the connecting plates.

Referring to fig. 4, 5 and 6, fig. 4 is a schematic view illustrating a connection between a probe and a probe control board according to a third embodiment of the probe switching device of the present invention, and fig. 5 is a sectional structure view of the third embodiment of the probe switching device of the present invention; fig. 6 is an exploded view of a third embodiment of the probe switching device of the present invention.

In another embodiment, the probe socket is separately made on the rigid-flexible combined board, one end of the rigid-flexible board 260 is above the probe control board 270, contacts are arranged on the rigid-flexible board 260, and in the working state, the rotating shaft force application part pushes the rigid-flexible board 260 to the probe control board 270 to be contacted, so that the circuit is conducted.

Further, the first switch component 100 is circumferentially distributed on the switching rotating shaft 120, and the force application block 110 faces the outside of the switching rotating shaft 120. Therefore, the second components can be horizontally arranged, so that an operator can remember the ultrasonic probes 400 corresponding to the switches, and the operator can operate the switching rotating shaft 120 conveniently. Moreover, the cost is relatively low, and in this state, when the force applied to the switching shaft 120 is from multiple directions, the overall deformation is small.

Further, the second switch unit 200 is provided with an elastic structure disposed between the first fixed contact 220 and the second fixed contact 230, the elastic structure corresponding to the bridging contact 210, and the elastic structure electrically connected to the bridging contact 210.

Set up the elastic construction at the second switch, can be before switching next ultrasonic probe 400, with the ultrasonic probe 400 circuit disconnection who just uses to this reduces dependent manual operation, reduces the emergence probability of invalid operation, weakens the human cost, guarantees holistic operation effect.

The elastic structure may be at least one spring 250 or at least one elastic mechanism.

Further, the ultrasonic probe 400 switching device further includes an ultrasonic probe 400 control board, at least two first sensing components and at least two second sensing components, the first sensing components are circumferentially distributed on the switching rotating shaft 120, the second sensing components are disposed on the ultrasonic probe 400 control board, the sensors correspond to the signal sources, the sensors correspond to the switch components, and the rotation of the switching rotating shaft 120 is controlled by changing the position relationship between the sensors and the signal sources, so as to switch the ultrasonic probe 400.

In one embodiment, the second sensing component includes a sensor, the first component includes signal sources, and the signal sources are disposed at one end of the switching rotating shaft 120 and circumferentially distributed at one end of the switching rotating shaft 120 along the axial direction of the switching rotating shaft 120; the sensors are arranged at corresponding positions of the control board of the ultrasonic probe 400. In another embodiment, the first and second sensing components comprise sensors and the first and second sensing components comprise signal sources.

Optionally, the sensor is a hall sensor 241 and the signal source is a magnet 140. By using the hall sensor 241, the working temperature range is wide, the precision of the measuring magnet 140 is high, the accuracy is stronger, misoperation is not easy to occur, the service life is long, and the maintenance cost is reduced.

Optionally, the sensor is a photoelectric sensor and the signal source is a stop. In this embodiment, the switching device of the ultrasonic probe 400 further comprises a light source. The light emitted by the light source is shielded by the stop block, and the corresponding photoelectric sensor carries out coding. Further, the photoelectric sensor may be a photoelectric encoder, and the mechanical geometric displacement on the output shaft is converted into a pulse or a digital quantity through photoelectric conversion.

Further, a roller is disposed outside the force application block 110. Thereby, the contact strength between the first switching member 100 and the second switching member 200 can be reduced, enhancing the device life.

Further, the ultrasonic probe 400 switching device further includes a fixing plate 300, the control board of the ultrasonic probe 400 is fixed on the fixing plate 300, the switching rotating shaft 120 is connected to the fixing plate 300 in a hanging manner, and the control board of the ultrasonic probe 400 is disposed between the switching rotating shaft 120 and the fixing plate 300.

Specifically, the two ends of the switching shaft 120 are provided with the brackets 150, so as to ensure that the switching shaft 120 is connected to the control board in a suspended manner. From this, make up overall structure, reduced the degree of difficulty of equipment, be favorable to the equipment and the transportation to the device.

Preferably, the switching device of the ultrasonic probe 400 further comprises a rotating structure and a power structure, the power structure drives the switching rotating shaft 120 through the rotating structure, and the sensor controls the rotation of the rotating structure;

wherein, the power structure comprises a motor 130, and the rotating structure comprises one or more of a coupler, a gear mechanism and a rope connecting mechanism.

By applying the rotating structure, the rotating effect of the switching rotating shaft 120 can be ensured, and the problem of difficult rotation is avoided. The application of the power structure can be controlled by a sensor and directly acts on the switching rotating shaft 120, thereby ensuring the switching effect.

In summary, the bridging contactor 210 is used to connect the first fixed contactor 220 and the second fixed contactor 230, so that the signal transmission distance is reduced, and the transmission quality and speed are improved; the cost can be reduced by the same switching equipment with the number of the ultrasonic probes 400 without using a relay; the number of elements is reduced, the control panel can be made smaller, the required box body can be smaller, and the occupied equipment space can be reduced; after the mechanical mode is used, the connecting wires are greatly reduced, the wiring difficulty is reduced, and the production and the installation are convenient; the working current is reduced, and the energy is saved.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims (10)

1. A probe switching device comprises at least two switch components and at least two probes, wherein the switch components correspond to the probes, and the probe switching device is characterized in that: the switching switch assembly comprises a first switch component and a second switch component, the first switch component is provided with a force application block, the second switch component mainly comprises two fixed contactors and a bridging contactor, a probe corresponding to the switching switch assembly is connected with one fixed contactor, and the bridging contactor is controlled to be in contact with or separated from the two fixed contactors through the movement of the bridging contactor;

wherein: when the force application block is pressed on the bridging contactor, the bridging contactor is contacted with the two fixed contactors, and the two fixed contactors are electrically connected;

wherein: the electric signal passes through the bridging contactor and the two fixed contactors and reaches the corresponding probes, the corresponding probes convert the acquired information into the electric signal and return the electric signal back through the original path, and the current probes are switched to be the probes corresponding to the switch assembly.

2. The probe switching device of claim 1, wherein: the bridging contactor comprises a pressing block and a connecting bridge, the pressing block is connected with the connecting bridge, the connecting bridge is close to the position between the two fixed contactors, the connecting bridge is mainly made of a conductive material, the pressing block is mainly made of a non-conductive material, and the force application block acts on the pressing block.

3. The probe switching device of claim 1, wherein: the device also comprises at least one switching rotating shaft; the first switch parts are arranged along the axial direction of the switching rotating shaft.

4. The probe switching device of claim 3, wherein: the first switch components are circumferentially distributed on the switching rotating shaft.

5. The probe switching device according to any one of claims 1 to 4, wherein: the second switch component is provided with an elastic structure, the elastic structure is arranged between the two fixed contactors, and the elastic structure is electrically connected with the bridging contactor.

6. The probe switching device of claim 4, wherein: the switching rotating shaft is arranged on the switching rotating shaft, and the switching rotating shaft is arranged on the probe control board;

the first sensing component comprises a sensor, the second sensing component comprises a signal source, the sensor corresponds to the change-over switch assembly, and the sensor is used for controlling the on-off of the change-over switch assembly.

7. The probe switching device according to claim 3 or 4, wherein: and the outer side of the force application block is provided with a roller.

8. The probe switching device of claim 6, wherein: the probe control panel is fixed on the fixed plate, the switching rotating shaft is connected with the fixed plate in a suspended mode, and the probe control panel is arranged between the switching rotating shaft and the fixed plate.

9. The probe switching device of claim 6, wherein: the switching mechanism further comprises a rotatable structure and a power structure, the power structure drives the switching rotating shaft through the rotatable structure, and the sensor controls the rotation of the rotatable structure;

the power structure comprises a motor, and the rotating structure comprises one or more of a coupler, a gear mechanism and a rope connecting mechanism.

10. The probe switching device of claim 6, wherein: the sensor is a Hall sensor or a photoelectric sensor, and the signal source is a magnet or a baffle.

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