Digital radiography x-ray machine unlocking device

Abstract

This utility model relates to the field of X-ray machine technology, and in particular to an unlocking device for a digital X-ray imaging machine. It includes a signal triggering component, which comprises a handle. The inner sidewall of the handle has a mounting groove, within which a signal triggering plate is detachably mounted. The signal triggering plate has a first curved surface on its side facing the outer peripheral wall of the handle. Curved blocks are symmetrically connected to both ends of the signal triggering plate. The outer sidewall of each curved block includes a fourth curved surface connected to the outer peripheral wall of the handle, a fifth curved surface tangent to the outer peripheral wall of the handle, and an edge formed at the junction of the fourth and fifth curved surfaces. In this utility model, the fourth curved surface of the curved block forms a protruding structure, and the first curved surface of the signal triggering plate also forms a protruding structure. A finger must precisely press the area of ​​either the first or fourth curved surface to trigger the signal, thus narrowing the effective contact area to a specific region and preventing accidental activation due to hand or clothing contact.

Description

Technical Field

[0001] This utility model relates to the field of X-ray machine technology, and more specifically, to an unlocking device for a digital radiographic X-ray machine. Background Technology

[0002] The unlocking device of a digital X-ray imaging machine is a device that controls the on / off state of an electromagnet by sensing changes in the capacitance of the human body, thereby locking and unlocking the column and the panel.

[0003] In the existing X-ray machine unlocking device, when the operator holds the handle, the touch-sensitive capacitor formed by the human hand and the ground is connected in parallel, causing the de-energized electromagnet to lose its magnetism. The X-ray machine column can be moved by the operator pushing or pulling. However, the metal handle on this unlocking device is a full-contact type, which can easily lead to accidental contact by the operator during daily operation, increasing the risk of collision. Utility Model Content

[0004] Based on the aforementioned technical problem that the metal grip on the unlocking device is of the full-contact type, which makes it easy for operators to accidentally touch it during daily operation, increasing the risk of collision, this utility model proposes an unlocking device for a digital X-ray imaging machine.

[0005] The present invention proposes a digital radiography X-ray machine unlocking device, which includes a signal triggering component, the signal triggering component including a handle, and the inner side wall of the handle having an installation groove.

[0006] A signal trigger plate is detachably installed in the mounting slot. The signal trigger plate has a first curved surface on the side facing the outer peripheral wall of the handle, and the first curved surface is connected to the outer peripheral wall of the handle.

[0007] The signal trigger plate has curved blocks symmetrically connected to both ends. The outer side wall of each curved block includes a fourth curved surface connected to the outer peripheral wall of the grip, a fifth curved surface tangent to the outer peripheral wall of the grip, and an edge formed at the junction of the fourth and fifth curved surfaces.

[0008] Preferably, the inner wall of the mounting groove has two threaded holes, and the outer wall of the grip has two hidden holes. A fixing bolt is inserted into the hidden hole, and the end of the fixing bolt is threaded to the inner wall of the threaded hole.

[0009] Preferably, the outer wall of the fixing bolt has a second curved surface, which is tangent to the first curved surface.

[0010] Preferably, the outer end of the fixing bolt has a cross hole, and a sealing plug is inserted into the inner wall of the cross hole.

[0011] Preferably, the sealing plug has a third curved surface on its cross-shaped surface, and the third curved surface is tangent to the second curved surface.

[0012] Preferably, one end of the grip has a cable routing hole, and a connecting wire passes through the inner wall of the cable routing hole. The end of the connecting wire is fixedly connected to the signal trigger board.

[0013] Preferably, it further includes an induction electromagnet, a triggering component, and a control circuit for locking and preventing the column from moving up and down. The signal triggering component is installed on the X-ray machine column. The signal triggering component is connected to the control circuit. The control circuit includes an induction module and a control switch. The signal triggering component is electrically connected to the signal input of the induction module. One end of the induction electromagnet is connected to a power source, and the other end of the induction electromagnet is grounded through the control switch. The output terminal of the induction module is electrically connected to the control terminal of the control switch to control the on / off state of the control switch.

[0014] The beneficial effects of this utility model, achieved through the above technical solution, are as follows:

[0015] The fourth curved surface of the block forms a raised structure, and the first curved surface of the signal trigger plate forms a raised structure. The finger needs to press the area of ​​the first or fourth curved surface precisely to trigger the signal. This design reduces the effective contact area to a specific area, avoiding accidental touches caused by the palm or clothing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the grip of this utility model;

[0018] Figure 3 This is a partial structural diagram of the grip of this utility model;

[0019] Figure 4 This is a partial disassembled structural diagram of the present invention;

[0020] Figure 5 This is a schematic diagram of the structure of the curved block of this utility model;

[0021] Figure 6 This is a schematic diagram of the circuit principle of this utility model.

[0022] In the diagram: 1. Induction electromagnet; 2. Signal triggering component; 201. Handle; 202. Signal triggering plate; 203. Connecting wire; 204. Wiring hole; 205. Mounting slot; 206. Threaded hole; 207. First curved surface; 208. Hidden hole; 209. Fixing bolt; 210. Second curved surface; 211. Cross hole; 212. Sealing plug; 213. Third curved surface; 214. Curved block; 215. Fourth curved surface; 216. Fifth curved surface; 217. Insulating pad; 218. Edge; 3. Induction module; 4. Control switch. Detailed Implementation

[0023] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] In this utility model, unless otherwise explicitly specified and limited, the term "fixed connection" should be interpreted broadly. For example, "fixed connection" can mean fixed installation, detachable connection, or integral connection; it can mean mechanical connection or electrical connection; it can mean direct connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] like Figures 1-5 As shown, a digital radiography X-ray machine unlocking device includes a signal triggering component 2, which includes a handle 201, and the inner sidewall of the handle 201 is provided with an installation groove 205.

[0026] A signal trigger plate 202 is detachably installed in the mounting slot 205. The signal trigger plate 202 has a first curved surface 207 on the side facing the outer peripheral wall of the grip 201. The first curved surface 207 is connected to the outer peripheral wall of the grip 201. The first curved surface 207 of the signal trigger plate 202 fits against the outer peripheral wall of the grip 201, reducing the discomfort when holding it.

[0027] The signal trigger plate 202 has symmetrical curved blocks 214 connected to both ends. The outer side wall of each curved block 214 includes a fourth curved surface 215 connected to the outer peripheral wall of the grip 201, a fifth curved surface 216 tangent to the outer peripheral wall of the grip 201, and an edge 218 formed at the junction of the fourth curved surface 215 and the fifth curved surface 216. The fourth curved surface 215 and the fifth curved surface 216 of the curved block 214 transition smoothly with the outer peripheral wall of the grip 201, which can avoid sharp edges from scratching the hand.

[0028] like Figure 3 and Figure 4As shown, the inner wall of the mounting groove 205 has two threaded holes 206, and the outer wall of the handle 201 has two hidden holes 208. A fixing bolt 209 is inserted into the hidden hole 208, and the end of the fixing bolt 209 is threaded to the inner wall of the threaded hole 206. The fixing bolt 209 is connected to the threaded hole 206 through the hidden hole 208 to improve the structural stability.

[0029] like Figure 4 As shown, the outer wall of the fixing bolt 209 has a second curved surface 210, which is tangent to the first curved surface 207, thus preventing the sharp edges from scratching the hand.

[0030] like Figure 4 As shown, a cross hole 211 is provided at the outer end of the fixing bolt 209, and a sealing plug 212 is inserted into the inner wall of the cross hole 211; the sealing plug 212 can prevent liquid and dust from entering the cross hole 211.

[0031] like Figure 4 As shown, the sealing plug 212 has a third curved surface 213 on its cross surface, and the third curved surface 213 is tangent to the second curved surface 210.

[0032] like Figure 2 and Figure 3 As shown, a wiring hole 204 is provided at one end of the grip 201, and a connecting wire 203 is passed through the inner wall of the wiring hole 204. The end of the connecting wire 203 is fixedly connected to the signal trigger board 202, and the connecting wire 203 is connected to the control circuit.

[0033] like Figure 6 As shown, it also includes an induction electromagnet 1 for locking and preventing the column from moving up and down, a triggering component, and a control circuit. The signal triggering component 2 is installed on the X-ray machine column. The signal triggering component 2 is connected to the control circuit. The control circuit includes an induction module 3 and a control switch 4. The signal triggering component 2 is electrically connected to the signal input of the induction module 3. One end of the induction electromagnet 1 is connected to the power supply, and the other end of the induction electromagnet 1 is grounded through the control switch 4. The output end of the induction module 3 is electrically connected to the control end of the control switch 4 to control the on / off state of the control switch 4.

[0034] The grip 201 is a metal grip, which is mounted on the side of the X-ray machine column via an insulating pad 217.

[0035] The sensing module 3 is a capacitive touch sensing chip U1. The capacitive touch sensing chip U1 is model ASC0111B. Its TCH pin is connected to the metal grip 201, and its OUT pin is connected to the control terminal of the control switch 4. A sensitivity adjustment unit is connected to the TCH pin of the capacitive touch sensing chip U1. The sensitivity adjustment unit includes a resistor R1 and a capacitor C1. The resistor R1 is connected in series between the grip 201 and the TCH pin, and the TCH pin is grounded through the capacitor C1. The control switch 4 is an enhancement-mode N-MOS transistor Q. The gate of the enhancement-mode N-MOS transistor Q serves as the control terminal, the drain of the enhancement-mode N-MOS transistor Q is connected to the sensing electromagnet 1, and the source of the enhancement-mode N-MOS transistor Q is grounded. In this invention, the capacitance C1 in the sensitivity adjustment unit ranges from 300pF to 350pF, and the resistance R1 ranges from 1.5KΩ to 2.5KΩ. In this embodiment, the capacitance value of C1 is 330pF, and the resistance value of R1 is 2KΩ.

[0036] When the operator does not touch the metal handle 201, the sensing module 3 is in standby mode and its output terminal is in a high impedance state. At this time, the sensing electromagnet 1 is not energized and has magnetism, locking the column and the panel.

[0037] When the operator grips the metal handle 201, it forms a parallel circuit with the touch-sensitive capacitor formed by the human body and the ground. The capacitance formed by the handle and the ground increases the total capacitance value. After the capacitance value of the capacitive touch sensor chip U1 changes at its detection terminal TCH pin, its output terminal OUT pin will output a high-level signal, driving the subsequent enhanced N-MOS transistor Q to conduct. The de-energized electromagnet is energized, and at this time the de-energized electromagnet loses its magnetism. At this time, the column can be moved and positioned by the operator pushing and pulling.

[0038] When the operator removes their hand from the handle 201 after positioning is completed, the touch sensing capacitance value of the handle 201 is restored, the sensing module 3 shuts off the output to the enhanced N-MOS transistor Q, the sensing electromagnet 1 is de-energized, and at this time it has magnetic attraction force to lock the column 1 to the panel.

[0039] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A digital X-ray machine unlocking device, characterized in that, include: The signal triggering component (2) includes a handle (201), and the inner sidewall of the handle (201) is provided with a mounting groove (205). A signal trigger plate (202) is detachably installed in the mounting slot (205). The signal trigger plate (202) has a first curved surface (207) on the side facing the outer peripheral wall of the handle (201). The first curved surface (207) is connected to the outer peripheral wall of the handle (201). The signal trigger plate (202) has curved blocks (214) symmetrically connected to both ends, and the outer side wall of each curved block (214) includes: The fourth curved surface (215) is connected to the outer peripheral wall of the grip (201); The fifth curved surface (216) is tangent to the outer peripheral wall of the grip (201); The edge (218) formed at the junction of the fourth surface (215) and the fifth surface (216).

2. The unlocking device for a digital X-ray machine according to claim 1, characterized in that: The inner wall of the mounting groove (205) has two threaded holes (206), and the outer wall of the handle (201) has two hidden holes (208). A fixing bolt (209) is inserted into the hidden hole (208), and the end of the fixing bolt (209) is threaded to the inner wall of the threaded hole (206).

3. The unlocking device for a digital X-ray machine according to claim 2, characterized in that: The outer wall of the fixing bolt (209) has a second curved surface (210), which is tangent to the first curved surface (207).

4. The unlocking device for a digital X-ray machine according to claim 3, characterized in that: The outer end of the fixing bolt (209) has a cross hole (211), and a sealing plug (212) is inserted into the inner wall of the cross hole (211).

5. The unlocking device for a digital X-ray machine according to claim 4, characterized in that: The sealing plug (212) has a third curved surface (213) on its cross surface, and the third curved surface (213) is tangent to the second curved surface (210).

6. The unlocking device for a digital X-ray machine according to claim 5, characterized in that: The grip (201) has a wiring hole (204) at one end, and a connecting wire (203) passes through the inner wall of the wiring hole (204). The end of the connecting wire (203) is fixedly connected to the signal trigger board (202).

7. The unlocking device for a digital X-ray machine according to claim 6, characterized in that: Insulating pads (217) are fixedly installed at both ends of the grip (201).

8. The unlocking device for a digital X-ray machine according to claim 7, characterized in that: It also includes an induction electromagnet (1) for locking and preventing the column from moving up and down, a triggering component and a control circuit. The signal triggering component (2) is installed on the X-ray machine column. The signal triggering component (2) is connected to the control circuit. The control circuit includes an induction module (3) and a control switch (4). The signal triggering component (2) is electrically connected to the signal input of the induction module (3). One end of the induction electromagnet (1) is connected to the power supply. The other end of the induction electromagnet (1) is grounded through the control switch (4). The output end of the induction module (3) is electrically connected to the control end of the control switch (4) to control the on and off of the control switch (4).

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