Electromagnet control device and medical device

Abstract

This case provides an electromagnet control device, including a guide rail, a slider, a self-locking structure, and an electromagnet. The electromagnet controls the slider to slide along the guide rail, thereby pulling the cable to move. When the release switch of the cable-pulled gas spring is turned on, the self-locking structure can limit the relative movement of the slider and the guide rail, so that the release switch of the gas spring can remain in the open state. Correspondingly, the gas spring can remain unlocked, thereby achieving isolation between the energized state of the electromagnet and the switch state of the gas spring release switch. This allows the electromagnet to be energized for a short period of time to control the gas spring release switch to be "on" for a long time, thereby achieving the purpose of not restricting the user's operating time. This solution also provides a medical device having the above-mentioned electromagnet control device, which has the same beneficial effects.

Description

Technical Field

[0001] The present invention belongs to the technical field of gas springs, and in particular relates to an electromagnet control device and a medical device. Background Art

[0002] Lockable gas springs are often used in medical devices as support components for control panels and other devices. The release and locking of gas springs are typically controlled by mechanical or electric switches. Electric switches are often implemented using electromagnets.

[0003] like Figure 1 As shown, in the prior art solution, the armature 203 of the electromagnet 2 is directly connected to the release switch 301 of the gas spring 3. When the electromagnet 2 is energized, the armature 203 actuates, opening the release switch 301 of the gas spring 3, allowing the operator to freely adjust the position of the device supported by the gas spring 3 (i.e., the supported device 4). When the electromagnet 2 is de-energized, the armature 203 resets, closing the release switch 301 of the gas spring 3, and locking the device supported by the gas spring 3 (i.e., the supported device 4) in a fixed position. If the position of the supported device 4 requires a long time to adjust, the electromagnet 3 needs to be energized for a long time to keep the gas spring release switch in the "on" position.

[0004] However, electromagnets generate significant heat when energized. If the electromagnet is energized for too long, the temperature rise can easily exceed the rated value, shortening its lifespan and even causing failure. Therefore, the energized time of the electromagnet cannot be too long, and the design needs to limit the energized time of the electromagnet.

[0005] The main drawback of existing technical solutions is that, to prevent electromagnet failure, the electromagnet's continuous power supply time must be limited. Specifically, the electromagnet must be powered off when the power supply exceeds a specified threshold. This limits the operator's operating time. During use, the operator may be forced to terminate the operation before the position of the supported device is fully adjusted, affecting the user experience.

[0006] Therefore, how to solve the problem that the gas spring release switch cannot be opened for a long time due to the electromagnet being forced to be powered off for a long time is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0007] The object of the present invention is to provide an electromagnet control device and a medical device, which are not affected by the power failure of the electromagnet and can keep the release switch of the gas spring open for a long time, so that the operator has ample time to adjust the position of the supported device.

[0008] To solve the above technical problems, the present invention provides an electromagnet control device, comprising a guide rail, a slider, an electromagnet, and a self-locking structure, wherein: the slider is fixedly connected to the armature of the electromagnet, or the armature of the electromagnet constitutes the slider, and the slider is used to connect to the release switch of the gas spring via a cable;

[0009] The slider is mounted on the guide rail and slidably cooperates with the guide rail to pull or release the cable to unlock or lock the gas spring;

[0010] The self-locking structure is used to limit the relative movement between the slider and the guide rail when the slider slides to the first position along the guide rail under the transmission of the electromagnet, so that the cable maintains the unlocked state of the gas spring under the traction of the slider in the first position; the self-locking structure is also used to keep the slider in the released state with respect to the cable when the slider slides to the second position along the guide rail under the transmission of the electromagnet, so that the gas spring recovers and maintains the locked state.

[0011] Optionally, the self-locking structure includes a track groove provided on the slider and a movable pin provided on the guide rail, wherein the pin is slidably connected to the track groove;

[0012] The track groove includes a forward path and a return path and a self-locking channel connecting the forward path and the return path, and the self-locking channel is provided with a self-locking position;

[0013] When the slider slides from the second position to the first position along the guide rail under the transmission of the electromagnet, the pin shaft slides from the starting end position of the progress path along the progress path and the self-locking channel to the self-locking position in sequence, and when the pin shaft is in the self-locking position, the slider and the guide rail are locked; when the slider slides from the first position to the second position along the guide rail under the transmission of the electromagnet, the pin shaft slides from the self-locking position along the self-locking channel and the return path to the terminal end position of the return path in sequence.

[0014] Optionally, the electromagnet includes an electromagnet body, a return spring and the armature, and the return spring is connected between the electromagnet body and the armature;

[0015] When the electromagnet is energized, the slide is driven to slide via the armature, so that the pin slides from the starting end position of the progress path along the progress path to the ending end position of the progress path, or slides from the self-locking position along the self-locking channel to the starting end position of the return path;

[0016] When the electromagnet is powered off, the reset spring drives the slider to slide, so that the pin shaft slides from the end position of the progress path along the self-locking channel to the self-locking position, or the pin shaft slides from the starting end position of the return path along the return path to the end position of the return path.

[0017] Optionally, a straight line perpendicular to the extension direction of the slider is used as a reference line, and the starting end position of the progress path and the ending end position of the return path are both located on the reference line.

[0018] Optionally, the starting end position of the progress path and the ending end position of the return path are the same end position.

[0019] Optionally, the terminating end position of the progress path and the starting end position of the return path are respectively formed by limiting recessed positions away from the reference line.

[0020] Optionally, the self-locking channel includes a groove position, the groove position constitutes the self-locking position, and the self-locking position is closer to the reference line than the end position of the progress path and the starting end position of the return path.

[0021] Optionally, the two sides of the self-locking position are respectively a first side wall close to the progress path and a second side wall close to the return path, the first side wall is opposite to the end end of the progress path, and the second side wall and the starting end of the return path are staggered with each other in the extension direction of the reference line.

[0022] Optionally, a first guide slope is provided on the process path for guiding the pin to the terminal end of the process path; and a second guide slope is provided on the self-locking channel for guiding the pin to the starting end of the return path.

[0023] Optionally, the pin is arranged on the guide rail through a pull rod, the pin is arranged on the pull rod, and the pull rod is hinged to the guide rail.

[0024] Optionally, the guide rail is provided with an arc-shaped hole for providing the pin with freedom of movement.

[0025] Optionally, the pull rod is hinged to the outer side of the guide rail, and the pin passes through the arc-shaped hole on the guide rail and is inserted into the track groove.

[0026] Optionally, the slider is connected to the cable through a sliding rod, the sliding rod passes through the guide rail and the slider, a protrusion is provided on the side wall of the sliding rod, and a track hole for slidingly connecting the protrusion is opened on the side wall of the slider; the track hole includes at least an inclined hole that forms an angle with the sliding direction of the slider.

[0027] Optionally, the track hole further includes a straight hole parallel to the sliding direction of the slider, the straight hole is connected to the inclined hole, and an obtuse angle is formed between the straight hole and the inclined hole;

[0028] When the pin shaft slides from the starting end position of the progress path along the progress path and the self-locking channel to the self-locking position, the protrusion slides from the inclined hole to the straight hole; when the pin shaft slides from the self-locking position along the self-locking channel and the return path to the terminal end position of the return path, the protrusion slides from the straight hole to the inclined hole.

[0029] Optionally, the straight hole is provided at the bottom end of the inclined hole.

[0030] Optionally, a boss is provided at the bottom end of the slide rod, a compression spring is sleeved on the slide rod, and two ends of the compression spring are respectively in contact with the boss and the guide rail.

[0031] Optionally, the sliding rod is detachably connected to the cable.

[0032] Optionally, the pull cable is provided with a protrusion, and the side wall of the slide rod is provided with a slot for engaging with the protrusion.

[0033] Optionally, the self-locking structure includes a fastener provided on the guide rail, and an end portion of the fastener is used to press the slider.

[0034] The present invention also provides a medical device, comprising a gas spring and the above-mentioned electromagnet control device, wherein the gas spring is connected to the electromagnet control device via a cable.

[0035] Optionally, the medical device is an ultrasonic diagnostic device.

[0036] This case provides an electromagnet control device, including a guide rail, a slider, a self-locking structure, and an electromagnet. The electromagnet controls the slider to slide along the guide rail, thereby pulling the cable to move. When the release switch of the cable-pulled gas spring is turned on, the self-locking structure can limit the relative movement of the slider and the guide rail, so that the release switch of the gas spring can remain in the open state. Correspondingly, the gas spring can remain unlocked, thereby achieving isolation between the energized state of the electromagnet and the switch state of the gas spring release switch. This allows the electromagnet to be energized for a short period of time to control the gas spring release switch to be "on" for a long time, thereby achieving the purpose of not restricting the user's operating time. This solution also provides a medical device having the above-mentioned electromagnet control device, which has the same beneficial effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0038] Figure 1 It is a schematic diagram of the connection between the gas spring and the electromagnet in the prior art;

[0039] Figure 2 A schematic diagram of the connection between the gas spring and the electromagnet control device provided by the present invention;

[0040] Figure 3 A schematic diagram of the structure of the connection between the gas spring and the electromagnet control device provided by the present invention;

[0041] Figure 4 A schematic diagram of the structure of the connection between the cable connected to the gas spring provided by the present invention and the electromagnet control device;

[0042] Figure 5 A schematic diagram of the track groove on the slider provided by the present invention;

[0043] Figure 6 A schematic diagram of the connection structure between the cable connected to the gas spring provided by the present invention and the electromagnet control device;

[0044] Figure 7 for Figure 6 A top view of

[0045] Figure 8 for Figure 7 Cross-section view from AA upwards;

[0046] Figure 9 for Figure 8 Cross-section view from BB upwards;

[0047] Figure 10 for Figure 6 Bottom view of

[0048] Figure 11 A schematic structural diagram of an ultrasonic diagnostic device provided in an embodiment of the present invention;

[0049] Figure 12 A schematic diagram of the assembly structure between the lifting arm and the electromagnet control device provided in an embodiment of the present invention.

[0050] In the above picture:

[0051] 1—Self-locking device; 101—Guide rail; 1011—Arcuate hole; 102—Slider; 1021—Rail groove; 102a—First guide slope; 102b—Second guide slope; 102c—First side wall; 102d—Second side wall; 1022—Rail hole; 103—Slider; 1031—Protrusion; 104—Pull rod; 1041—Pin; 1042—Bolt; 2—Electromagnet; 201—Electromagnet body; 202—Return spring; 203—Armature; 3—Gas spring; 301—Release switch; 302—Draw cable; 123—Electromagnet control device; 4—Supported device; 5—Base; 6—Lifting arm; 7—Support base; 8—Control panel; 9—Display;

[0052] A0—the starting position of the forward path and the ending position of the return path; A1—the ending position of the forward path; A2—the starting position of the return path; B—self-locking position. DETAILED DESCRIPTION

[0053] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0054] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0055] In the description of the present invention, the meaning of "plurality" is more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0056] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0057] The core of the present invention is to provide an electromagnet control device and a medical device, which are not affected by the power failure of the electromagnet and can keep the release switch of the gas spring open for a long time, so that the operator has ample time to adjust the position of the supported device.

[0058] In order to enable those skilled in the art to better understand the technical solutions provided by the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0059] See also Figures 2 to 4 The gas spring 3 includes a gas spring body and a release switch 301. The release switch 301 of the gas spring can be connected to a cable 302. To open the release switch 301 of the gas spring 3, the cable 302 can be pulled to freely adjust the position of the device supported by the gas spring body. To close the release switch 301 of the gas spring 3, the cable 302 needs to be released or loosened. At this time, the gas spring body is locked, and the supported device is locked in a fixed position.

[0060] The electromagnet 2 includes an electromagnet body 201, a return spring 202, and an armature 203. When the electromagnet 2 is energized, the armature 203 actuates, moving toward the electromagnet body 201 and compressing the return spring 202. When the electromagnet 2 is de-energized, the return spring 202 pushes the armature 203 back to its original position, moving it away from the electromagnet body 201.

[0061] See also Figures 3 to 10 An embodiment of the present invention provides an electromagnet control device, comprising a self-locking device 1 and the electromagnet 2 described above. The self-locking device 1 comprises a guide rail 101, a slider 102, and a self-locking structure. The slider 102 is connected to the armature 203 of the electromagnet 2, or the armature 203 of the electromagnet 2 constitutes the slider 102, and the slider 102 is used to connect to the release switch 301 of the gas spring 3 via a cable 302. The slider 102 is mounted on the guide rail 101 and slidably cooperates with the guide rail 101 to pull or release the cable 302 to unlock or lock the gas spring 3. It should be noted that when the gas spring 3 is unlocked, the release switch 301 of the gas spring 3 is open, and the gas spring 3 can be freely extended and retracted, while when the gas spring 3 is locked, the release switch 301 of the gas spring 3 is closed.

[0062] The self-locking structure is used to limit the relative movement between the slider 102 and the guide rail 101 when the slider 102 slides to the first position along the guide rail 101 under the transmission of the electromagnet 2, so that the cable 302 maintains the unlocked state of the gas spring 3 under the traction of the slider 102 in the first position; the self-locking structure is also used to keep the slider 102 in the released state with respect to the cable 302 when the slider 102 slides to the second position along the guide rail 101 under the transmission of the electromagnet 2, so that the gas spring 3 recovers and maintains the locked state.

[0063] It should be noted that the armature 203 of the electromagnet 2 can be connected to the slider 102, or the armature 203 can be directly used as the slider 102. When the slider 102 is the armature 203, the improvements in all specific embodiments of this case are performed on the armature 203, and in actual production, the armature 203 is processed and modified.

[0064] Based on the above structure, it can be known that the electromagnet 2 can control the slider 102 to slide along the guide rail 101, thereby pulling the cable 302 to move; after the cable 302 pulls the release switch 301 of the gas spring 3 to open, the relative movement of the slider 102 and the guide rail 101 can be limited by the self-locking structure. Then, a self-locking device 1 is connected in series between the electromagnet 2 and the release switch 301 of the gas spring 3 to achieve isolation between the power-on state of the electromagnet 2 and the switch state of the release switch 301 of the gas spring 3. Specifically, the short-term power-on of the electromagnet 2 can control the release switch 301 of the gas spring 3 to be "on" for a long time, thereby achieving the purpose of not limiting the user's operation time.

[0065] In one embodiment, combining Figure 4-Figure 6 As shown, the self-locking structure includes a track groove 1021 provided on the slider 102 and a pin 1041 provided on the guide rail 101. The pin 1041 is slidably connected to the track groove 1021. Specifically, the track groove 1021 includes a forward path and a return path, and a self-locking channel connecting the forward path and the return path. The forward path and the return path both include a starting end position and an ending end position. The self-locking channel is provided with a self-locking position B. Figure 5 , the termination position of the process path is Figure 5 The A1 position shown in the figure, the starting end position of the return path is Figure 5 The A2 position shown; the starting end position of the process path and the ending end position of the return path can be the same end position, that is, Figure 5 The A0 position of the slider 102 is shown in FIG. 2 , but the starting end of the forward path and the ending end of the return path can also be at different positions. Preferably, a straight line perpendicular to the extension direction of the slider 102 is used as the reference line L1, and the starting end of the forward path and the ending end of the return path are both located on the reference line L1, that is, the reference line passes through the starting end of the forward path and the ending end of the return path. With this arrangement, when the slider 102 slides along the guide rail 101 to the first position, the pin 1041 slides to the self-locking position B. When the slider 102 slides along the guide rail 101 to the second position, the pin 1041 slides to the starting end of the forward path or the ending end of the return path.

[0066] Continue to see Figure 4 and Figure 5, in one working cycle: the electromagnet 2 is energized, the armature 203 of the electromagnet 2 pulls the slider 102 to slide along the guide rail 101 from the second position, so that the pin shaft 1041 slides from the starting end position A0 of the process path along the process path to the ending end position A1 of the process path. At this time, the cable 302 connected to the gas spring 3 is pulled by the slider 102 to open the release switch 301 of the gas spring 3; then the electromagnet 2 is de-energized, and the slider 102 slides to the first position under the action of the return spring 202 of the electromagnet 2, so that the pin shaft 1041 slides along the self-locking channel to the self-locking position B and is locked, thereby achieving locking between the slider 102 and the guide rail 101. At this time, the release switch 301 of the gas spring 3 continues to be pulled by the slider 102 and remains in the open state, that is, the gas spring 3 is in the unlocked state, and the operator has ample time to adjust the position of the supported device 4; the process of powering on and off the electromagnet 2 realizes one-time jogging of the electromagnet 2. Then, the electromagnet 2 is energized again, and the armature 203 of the electromagnet 2 again pulls the slider 102 to slide along the guide rail 101, causing the pin 1041 to slide from the self-locking position B to the starting end position A2 of the return path. Then, the electromagnet 2 is deenergized again, and the slider 102, under the action of the return spring 202 of the electromagnet 2, slides back to the second position along the guide rail 101, causing the pin 1041 to slide from the starting end position A2 of the return path along the return path to the ending end position A0 of the return path. During the process of the slider 102 sliding back to the above-mentioned second position, the cable 302 is loosened or released, causing the release switch 301 of the gas spring 3 to close, and the gas spring 3 returns to the locked state and cannot be adjusted. This power-on and power-off process of the electromagnet 2 realizes another jog of the electromagnet 2. Therefore, by jogging the electromagnet 2, the release switch 301 of the gas spring 3 can be kept open for a long time, giving the operator ample time to adjust the position of the supported device 4 and preventing the electromagnet 2 from being energized for a long time and overheating.

[0067] The reciprocating motion of the slider 102 causes the pin 1041 to slide along the track groove 1021. To ensure that the pin 1041 can slide smoothly in the track groove 1021, the pin 1041 can move slightly in a direction perpendicular to the sliding direction of the slider 102. Specifically, the pin 1041 is set on the guide rail 101 through the pull rod 104, that is, the pin 1041 can be set on the pull rod 104, and the pull rod 104 is hinged to the guide rail 101. The guide rail 101 can be provided with an arc-shaped hole 1011 (an arc-shaped groove can also be used) for providing freedom of movement for the pin 1041. The pin 1041 can move within the limited range of the arc-shaped hole 1011; preferably, the pull rod 104 is hinged to the outside of the guide rail 101, and the pin 1041 passes through the arc-shaped hole on the guide rail 101 and is inserted into the track groove 1021. Therefore, a slight displacement is generated by the movement of the pin shaft 1041 in the arc-shaped hole 1011 , and eventually the pin shaft 1041 can slide smoothly and steadily in the track groove 1021 .

[0068] The guide rail 101 can be a flat guide rail or a hollow shell. If it is a flat guide rail, the guide rail portion corresponding to the movable area of ​​the pin 1041 can be a shell structure provided with an arc-shaped hole, or a shell structure with a notch. The above-mentioned improvements regarding the arc-shaped hole or notch are all to provide movement space for the pin 1041. In a specific embodiment, the guide rail 101 includes an upper shell and a lower shell, the upper shell and the lower shell are detachably connected and form a cavity inside, the slider 102 is placed in the cavity, the electromagnet body 201 is fixed to the guide rail 101 and the armature 203 is connected to one end of the slider 102. The electromagnet 2 is turned on and off to drive the armature 203 to move, and the slider 102 reciprocates on the guide rail 101 (in the direction of approaching and moving away from the electromagnet body 201).

[0069] In a preferred embodiment, the terminal end position A1 of the progress path and the starting end position A2 of the return path are both formed by limiting recesses away from the reference line L1. In the embodiment where the slider 102 is connected to the armature 203 of the electromagnet 2, the slider 102 has a connecting portion connected to the armature 203 of the electromagnet 2. The above description of the limiting recesses away from the reference line indicates that the terminal end position A1 of the progress path and the starting end position A2 of the return path are both formed by limiting recesses away from the connecting portion. Thus, the limiting recesses allow the pin 1041 to slide along the track groove 1021 and be confined to the limit position of the corresponding path when the electromagnet 2 is energized. Specifically, the design of the limiting recesses ensures that when the electromagnet 2 is energized, the pin 1041 remains in the limiting recess of the corresponding path after sliding to the terminal end position A1 of the progress path and the starting end position A2 of the return path, and does not slide out. Furthermore, a first guiding slope 102a is provided on the forward path for guiding the pin 1041 to the final end position A1 of the forward path, and a second guiding slope 102b is provided on the self-locking channel for guiding the pin 1041 to the starting end position A2 of the return path. These arrangements allow the pin 1041 to slide more smoothly into the final end position A1 of the forward path or the starting end position A2 of the return path.

[0070] To ensure that the pin 1041 is securely locked in the self-locking position B, the self-locking channel preferably includes a groove, which constitutes the self-locking position B. The self-locking position B is closer to the reference line L1 or the connection portion than the end point A1 of the forward path and the starting point A2 of the return path. Therefore, once the pin 1041 slides into the self-locking position B, it will remain in the self-locking position B unless there is any external force, thus achieving the self-locking purpose. In order to make the pin shaft 1041 slide more smoothly from the progress path into the above-mentioned self-locking position B, and also to make the pin shaft 1041 slide more smoothly from the self-locking position B into the return path, and slide smoothly from the return path to its terminal end position A0, since the two sides of the self-locking position B are respectively the first side wall 102c close to the progress path and the second side wall 102d close to the return path, the first side wall 102c and the terminal end position A1 of the progress path can be set relative to each other, and the second side wall 102d and the starting end position A2 of the return path can be staggered with each other in the extension direction of the above-mentioned reference line.

[0071] The above is only one design concept for track groove 1021. Due to the special path configuration, pin 1041 can only slide in one direction along the entire path of track groove 1021 and cannot return in the opposite direction. This allows the self-locking structure to achieve the locking function under specific conditions. Of course, track groove 1021 can also be designed with other path forms according to actual needs. Any track groove 1021 that can achieve the desired function is within the scope of protection of this case.

[0072] In a preferred embodiment, the slider 102 is connected to the cable 302 via a slide rod 103. The slide rod 103 passes through the guide rail 101 and the slider 102. A protrusion 1031 is provided on the side wall of the slide rod 103. A track hole 1022 for slidingly connecting the protrusion 1031 is opened on the side wall of the slider 102. The track hole 1022 includes at least an inclined hole that forms an angle with the sliding direction of the slider 102. The two ends of the inclined hole are respectively a first end and a second end. It should be noted that, if Figure 4 As shown, in the direction of movement of slider 102, the first end of the inclined hole is closer to the electromagnet than the second end. This arrangement of the inclined hole allows protrusion 1031 to move within the inclined hole in the direction pulling slide rod 103 and cable 302, i.e., from the first end to the second end, as slider 102 moves toward electromagnet 2. Of course, track hole 1022 can also be replaced by a slot-shaped structure.

[0073] The guide rail 101 defines a through hole for the slide bar 103 to pass through, and the slider 102 defines a through slot for the slide bar 103 to pass through, providing freedom of movement for the slide bar 103. When the electromagnet 2 is energized, the slider 102 slides along the guide rail 101 toward the electromagnet 2, pulling the slide bar 103 and the cable 302. When the electromagnet 2 is de-energized, the slider 102 slides along the guide rail 101 away from the electromagnet 2, resetting the slide bar 103 and releasing or undoing the cable 302.

[0074] To achieve force balance, protrusions 1031 are symmetrically provided on each side of the slide bar 103, and the aforementioned track holes 1022 are symmetrically provided on both side walls of the slider 102. This prevents the slide bar 103 from shaking when moving relative to the slider 102. Of course, it is also possible to provide only one protrusion 1031 and track hole 1022 on one side, and such arrangements are within the scope of protection of this application. Furthermore, protrusions 1031 can be detachably connected to the slide bar 103, specifically by means of a snap-on or threaded connection.

[0075] Furthermore, the track hole 1022 also includes a straight hole parallel to the sliding direction of the slider 102, the straight hole is connected to the inclined hole, and an obtuse angle is formed between the straight hole and the inclined hole, wherein the straight hole can be arranged at the bottom end of the inclined hole; when the pin shaft 1041 slides from the starting end position A0 of the progress path along the progress path and the self-locking channel to the self-locking position B, the protrusion 1031 slides from the inclined hole to the straight hole; when the pin shaft 1041 slides from the self-locking position B along the self-locking channel and the return path to the ending end position A0 of the return path, the protrusion 1031 slides from the straight hole to the inclined hole. Preferably, when the pin 1041 is at the starting end A0 of the forward travel path or the ending end A0 of the return travel path, the protrusion 1031 is located at the first end of the inclined hole; when the pin 1041 is at the starting end A2 of the return travel path, the protrusion 1031 is located at the end of the straight hole; when the pin 1041 is at the self-locking position B, the protrusion 1031 is located in the straight hole or at the second end of the inclined hole. The arrangement of the straight holes ensures that when the pin 1041 moves between the ending end A1 of the forward travel path to the self-locking position B or the starting end A2 of the return travel path, the slide bar 103 remains in the pulled state, thereby maintaining the gas spring 3 in the unlocked state (i.e., the release switch 301 is on).

[0076] It should be noted that the track hole 1022 can also be designed as a straight hole set at the top of the inclined hole; or the orientation of the track hole 1022 can be set accordingly according to the orientation of the track groove 1021. In addition, it should be pointed out that the track hole 1022 can be replaced by a slot-shaped structure. The configuration of the slot-shaped structure is similar to that of the track hole 1022 and will not be repeated here.

[0077] In order to provide a driving force for returning the slide bar 103 to its original position, a boss is provided at the bottom end of the slide bar 103 , and a compression spring is sleeved on the slide bar 103 , with both ends of the compression spring respectively abutting against the boss and the guide rail 101 .

[0078] Furthermore, the sliding rod 103 and the cable 302 are detachably connected, facilitating assembly and disassembly of the electromagnet control device and the gas spring 3. Specifically, the cable 302 is provided with a protrusion, and the sidewall of the sliding rod 103 is provided with a slot for engaging with the protrusion. The slots include a first slot for accommodating the cable 302 and a second slot for accommodating the protrusion. Once connected, the cable 302 and sliding rod 103 can only be disassembled laterally, maintaining a secure connection in the pulling direction.

[0079] The working principle of the electromagnet control device of the embodiment of the present invention is as follows:

[0080] When the electromagnet 2 is activated for the first time, the gas spring 3 is converted from the locked state and maintained in the unlocked state: the electromagnet 2 is energized, and the armature 203 of the electromagnet 2 pulls the slider 102 to slide along the guide rail 101 from the second position, so that the pin shaft 1041 slides from the starting end A0 of the process path along the process path to the ending end A1 of the process path. During this process, the cable 302 connected to the gas spring 3 is pulled by the slider 102 to open the release switch 301 of the gas spring 3; then the electromagnet 2 is de-energized, and the slider 102 slides to the first position under the action of the return spring 202 of the electromagnet 2, so that the pin shaft 1041 slides along the self-locking channel to the self-locking position B and locks, thereby realizing the locking between the slider 102 and the guide rail 101. At this time, the release switch 301 of the gas spring 3 continues to be pulled by the slider 102 and remains in the open state, that is, the gas spring 3 is in the unlocked state at this time, and the operator has ample time to adjust the position of the supported device 4.

[0081] When the electromagnet 2 is activated for the second time, the gas spring 3 is converted from the unlocked state to the locked state: the electromagnet 2 is energized again, and the armature 203 of the electromagnet 2 pulls the slider 102 to slide along the guide rail 101 again, causing the pin shaft 1041 to slide from the self-locking position B to the starting end position A2 of the return path. Then the electromagnet 2 is de-energized again, and the slider 102 slides back to the second position along the guide rail 101 under the action of the return spring 202 of the electromagnet 2, causing the pin shaft 1041 to slide from the starting end position A2 of the return path along the return path to the ending end position A0 of the return path. In the process of the slider 102 sliding back to the above-mentioned second position, the cable 302 will be loosened or released, causing the release switch 301 of the gas spring 3 to automatically reset and close, and the gas spring 3 returns to the locked state and cannot be adjusted.

[0082] See also Figure 3 、 Figure 11 and Figure 12The present application also discloses a medical device, specifically an ultrasonic diagnostic device, which includes an electromagnet control device 123 and a gas spring 3. The electromagnet control device 123 is the electromagnet control device disclosed in the above embodiment. Specifically, the ultrasonic diagnostic device includes a base 5, a lifting arm 6, a support base 7, a control panel 8, and a display 9. The lifting arm 6 is mounted between the base 5 and the support base 7, and the support base 7 supports the control panel 8 and the display 9. The electromagnet control device 123 is mounted on the base 5, and the gas spring 3 is mounted in the lifting arm 6 and connected to the electromagnet control device 123 via a cable 302. The specific connection structure between the cable 302 and the electromagnet control device 123 can be found in the description of the above embodiment and will not be repeated here. In addition, the support base 7 and the control panel 8 and display 9 supported thereon constitute the supported device 4. When the release switch 301 of the gas spring 3 is turned on, the supported device 4 can be adjusted up and down. Obviously, the medical device with the above electromagnet control device 123 also has all the above technical effects.

[0083] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0084] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. An electromagnet control device, characterized in that: It comprises a guide rail (101), a slider (102), a self-locking structure and an electromagnet (2), wherein: The slider (102) is fixedly connected to the armature (203) of the electromagnet (2), or the armature (203) of the electromagnet (2) constitutes the slider (102), and the slider (102) is used to connect to the release switch (301) of the gas spring (3) via a cable (302); The slider (102) is mounted on the guide rail (101) and slidably cooperates with the guide rail (101) to pull or release the cable (302) to unlock or lock the gas spring (3); The self-locking structure is used to limit the relative movement between the slider (102) and the guide rail (101) when the slider (102) slides to the first position along the guide rail (101) under the transmission of the electromagnet (2), so that the cable (302) maintains the unlocked state of the gas spring (3) under the traction of the slider (102) in the first position; the self-locking structure is also used to keep the slider (102) in the released state with respect to the cable (302) when the slider (102) slides to the second position along the guide rail (101) under the transmission of the electromagnet (2), so that the gas spring (3) recovers and maintains the locked state; The self-locking structure comprises a track groove (1021) provided on the slider (102) and a movable pin (1041) provided on the guide rail (101), wherein the pin (1041) is slidably connected to the track groove (1021); The track groove (1021) comprises a forward path and a return path, and a self-locking channel connecting the forward path and the return path, wherein the self-locking channel is provided with a self-locking position (B); When the slider (102) slides from the second position to the first position along the guide rail (101) under the transmission of the electromagnet (2), the pin shaft (1041) starts from the starting end position of the process path and slides in sequence along the process path and the self-locking channel to the self-locking position (B), and when the pin shaft (1041) is in the self-locking position (B), the slider (102) and the guide rail (101) are locked; when the slider (102) slides from the first position to the second position along the guide rail (101) under the transmission of the electromagnet (2), the pin shaft (1041) starts from the self-locking position (B) and slides in sequence along the self-locking channel and the return path to the terminal end position of the return path.

2. The electromagnet control device according to claim 1, characterized in that: The electromagnet (2) comprises an electromagnet body (201), a return spring (202) and the armature (203), wherein the return spring (202) is connected between the electromagnet body (201) and the armature (203); When the electromagnet (2) is energized, the slider (102) is driven to slide via the armature (203), so that the pin (1041) slides from the starting end position of the process path along the process path to the ending end position (A1) of the process path, or the pin (1041) slides from the self-locking position (B) along the self-locking channel to the starting end position (A2) of the return path; When the electromagnet (2) is powered off, the slider (102) is driven to slide by the reset spring (202), so that the pin shaft (1041) slides from the terminal end position (A1) of the forward path along the self-locking channel to the self-locking position (B), or the pin shaft (1041) slides from the starting end position (A2) of the return path along the return path to the terminal end position of the return path.

3. The electromagnet control device according to claim 1, characterized in that: A straight line perpendicular to the extension direction of the slider (102) is used as a reference line, and the starting end position of the forward path and the ending end position of the return path are both located on the reference line.

4. The electromagnet control device according to claim 3, characterized in that: The starting end position of the forward path and the ending end position of the return path are the same end position.

5. The electromagnet control device according to claim 3, characterized in that: The terminating end position (A1) of the forward path and the starting end position (A2) of the return path are respectively formed by limiting recessed positions away from the reference line.

6. The electromagnet control device according to claim 3, characterized in that: The self-locking channel includes a groove position, which constitutes the self-locking position (B). The self-locking position (B) is closer to the reference line than the end position (A1) of the forward path and the starting position (A2) of the return path.

7. The electromagnet control device according to claim 6, characterized in that: The two sides of the self-locking position (B) are respectively a first side wall close to the progress path and a second side wall close to the return path, the first side wall is opposite to the end end (A1) of the progress path, and the second side wall and the starting end (A2) of the return path are staggered with each other in the extension direction of the reference line.

8. The electromagnet control device according to claim 6, characterized in that: A first guiding slope is provided on the progress path for guiding the pin shaft (1041) to the end position (A1) of the progress path; and a second guiding slope is provided on the self-locking channel for guiding the pin shaft (1041) to the starting position (A2) of the return path.

9. The electromagnet control device according to claim 1, characterized in that: The pin shaft (1041) is arranged on the guide rail (101) via a pull rod (104), the pin shaft (1041) is arranged on the pull rod (104), and the pull rod (104) is hinged to the guide rail (101).

10. The electromagnet control device according to claim 9, characterized in that: The guide rail (101) is provided with an arc-shaped hole (1011) for providing the pin shaft (1041) with a degree of freedom of movement.

11. The electromagnet control device according to claim 10, characterized in that: The pull rod (104) is hinged to the outside of the guide rail (101), and the pin shaft (1041) passes through the arc-shaped hole (1011) on the guide rail (101) and is inserted into the track groove (1021).

12. The electromagnet control device according to any one of claims 1 to 11, characterized in that: The slider (102) is connected to the cable (302) via a slide rod (103); the slide rod (103) passes through the guide rail (101) and the slider (102); a protrusion (1031) is provided on a side wall of the slide rod (103); and a track hole (1022) for slidingly connecting the protrusion (1031) is opened on the side wall of the slider (102); the track hole (1022) at least includes an oblique hole that forms an angle with the sliding direction of the slider (102).

13. The electromagnet control device according to claim 12, characterized in that: The track hole (1022) further comprises a straight hole parallel to the sliding direction of the slider (102), the straight hole is connected to the inclined hole, and an obtuse angle is formed between the straight hole and the inclined hole; When the pin shaft (1041) slides from the starting end position of the progress path along the progress path and the self-locking channel to the self-locking position (B), the protrusion (1031) slides from the inclined hole to the straight hole; when the pin shaft (1041) slides from the self-locking position (B) along the self-locking channel and the return path to the terminal end position of the return path, the protrusion (1031) slides from the straight hole to the inclined hole.

14. The electromagnet control device according to claim 13, characterized in that: The straight hole is arranged at the bottom end of the inclined hole.

15. The electromagnet control device according to claim 12, characterized in that: A boss is provided at the bottom end of the slide bar (103), and a compression spring is sleeved on the slide bar (103), with both ends of the compression spring respectively abutting against the boss and the guide rail (101).

16. The electromagnet control device according to claim 12, characterized in that: The sliding rod (103) and the cable (302) are detachably connected.

17. The electromagnet control device according to claim 16, characterized in that: The pull cable (302) is provided with a protrusion, and the side wall of the slide rod (103) is provided with a slot for engaging with the protrusion.

18. A medical device, characterized in that: It comprises a gas spring (3) and an electromagnet control device (1) according to any one of claims 1 to 17, wherein the gas spring (3) is connected to the electromagnet control device (1) via a cable (302).

19. The medical device according to claim 18, characterized in that The medical device is an ultrasonic diagnostic device.

Images