Locking device of movable device and ultrasonic diagnosis equipment

Abstract

The utility model discloses a locking device of a movable device and ultrasonic diagnostic equipment, the movable device comprises a first structural member and a second structural member movably connected with the first structural member, one of the first structural member and the second structural member is provided with at least two limiting holes which are arranged along the relative moving direction of the first structural member and the second structural member, and the limiting holes are arranged in the first structural member and the second structural member. The locking device comprises a limiting piece which is arranged on the other one of the first structural piece and the second structural piece, can move in the direction close to the limiting hole, selects one to be matched and connected with the limiting hole in an inserted mode to enable the first structural piece and the second structural piece to be locked, and can move in the direction away from the limiting hole to be separated from the limiting hole to enable the first structural piece and the second structural piece to be unlocked. The driving device is used for providing driving force for the limiting piece to be inserted into and separated from the limiting hole in a matched mode. Locking of the movable device is achieved through cooperation of the limiting piece and the limiting hole, the driving device is mainly used for providing driving force for the limiting piece to be close to or away from the limiting hole, and the requirement for the force of the driving device is low.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and more specifically, to a locking device for a movable device. In addition, the utility model also relates to an ultrasonic diagnostic device comprising the locking device for the movable device. Background Art

[0002] During use of the ultrasonic diagnostic equipment, in order to adapt to changes in the operator's position, it is often necessary to adjust the position of the control panel of the ultrasonic diagnostic equipment so that the operator can operate the control panel more easily.

[0003] In related art, the position of the control panel is adjusted by the movement of a movable device. When the position is adjusted to the desired position, the movable device is locked by the attraction between the electromagnet and the armature. When the control panel needs to be readjusted, the attraction between the electromagnet and the armature is released by powering off, thereby unlocking the movable device. In this solution, the magnetic attraction between the electromagnet and the armature provides the locking force for the movable device. This requires the electromagnet to have a strong magnetic attraction; otherwise, the locking effect of the movable device will not be achieved. Furthermore, the electromagnet must maintain its magnetic attraction in the locked state, which can easily lead to energy waste.

[0004] Therefore, how to reduce the force required to lock or unlock the movable device while achieving reliable locking is an urgent problem to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, an object of the present invention is to provide a locking device for a movable device, which can reduce the force required for locking or unlocking the movable device while achieving reliable locking.

[0006] Another object of the present invention is to provide an ultrasonic diagnostic device comprising the locking device of the movable device, which can reduce the force required for locking or unlocking the movable device while achieving reliable locking.

[0007] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0008] A locking device for a movable device, the movable device comprising a first structural member and a second structural member movably connected to the first structural member, one of the first structural member and the second structural member being provided with at least two limiting holes, the at least two limiting holes being arranged along the relative movable direction of the first structural member and the second structural member, the locking device comprising:

[0009] a limiting member provided on the other of the first structural member and the second structural member, capable of moving in a direction approaching the limiting hole and selectively engaging with the limiting hole to lock the first structural member and the second structural member, and capable of moving in a direction away from the limiting hole and separating from the limiting hole to unlock the first structural member and the second structural member;

[0010] The driving device is used to provide a driving force to the limiting member so as to enable it to be plugged into and separated from the limiting hole.

[0011] Optionally, a guide cone is provided at one end of the limiting member for plugging into and cooperating with the limiting hole.

[0012] Optionally, when the limiting member is plugged into the limiting hole, there is line contact between the guide cone and the limiting hole.

[0013] Optionally, the limiting hole is a straight hole, and when the limiting member is plugged into the limiting hole, the outer periphery of the guide cone is in linear contact with the edge of the straight hole.

[0014] Optionally, the edge portion is provided with rounded corners.

[0015] Optionally, the relationship between the cone angle 2θ of the guide cone and the friction coefficient μ between the guide cone and the limiting hole is: .

[0016] Optionally, it also includes:

[0017] A guide member is provided on the other of the first structural member and the second structural member, and is slidably connected to the limiting member to slide and limit the limiting member during the process of the limiting member and the limiting hole being plugged in or separated.

[0018] Optionally, the driving device includes:

[0019] an electromagnet coil provided on the other of the first structural member and the second structural member; and

[0020] an electromagnet core connected to the limiting member and configured to provide a driving force to separate the limiting member from the limiting hole when the electromagnet coil is energized;

[0021] and / or,

[0022] An elastic member is connected between the other of the first structural member and the second structural member and the limiting member, and is used to provide a driving force to the limiting member so that the limiting member can be plugged into the limiting hole.

[0023] Optionally, the number of the limiting members is at least two; and the locking device further comprises:

[0024] The bracket is configured such that at least two of the limiting members are connected to the electromagnet core via the bracket.

[0025] Optionally, the limiting member is clearance-matched with the bracket in its radial direction.

[0026] Optionally, the first structural member and the second structural member are slidably connected and a wiring harness is connected therebetween; the bracket has a recess, and an escape space is formed between the recess and one of the first structural member and the second structural member for the wiring harness to pass through, and at least two of the limiting members are arranged on both sides of the recess.

[0027] Optionally, there are two limit members, and the two limit members are symmetrically arranged about the central axis of the bracket, and the central axis of the bracket is coaxial with the central axis of the electromagnet core.

[0028] Optionally, a buffer is provided on a surface of the bracket facing the first structural member and / or the second structural member.

[0029] An ultrasonic diagnostic device comprises a control panel, a device body, a movable device and a locking device of any one of the movable devices, wherein the control panel and the device body are connected via the movable device.

[0030] Optionally, the movable device includes:

[0031] The moving device comprises the first structural member and a second structural member slidably connected to the first structural member, and is locked or unlocked by the locking device of the movable device.

[0032] The locking device of the movable device provided by the utility model has the following beneficial effects:

[0033] When the relative position of the first structural member and the second structural member needs to be adjusted, the driving device is used to drive the limiting member to move in a direction away from the limiting hole, so that the limiting member is separated from the limiting hole, and the lock on the first structural member and the second structural member is released, so that the first structural member and the second structural member can move relative to each other, thereby achieving the purpose of adjusting the relative position of the first structural member and the second structural member. After the relative position of the first structural member and the second structural member is adjusted to the right position, the limiting member is aligned with one of the limiting holes, and the driving device is used to drive the limiting member to move in a direction close to the limiting hole, so that the limiting member and the limiting hole aligned with it are mated and plugged, thereby utilizing the mating position of the limiting member and the limiting hole to lock the first structural member and the second structural member, so that the first structural member and the second structural member cannot move relative to each other, thereby ensuring that the relative position of the first structural member and the second structural member remains unchanged.

[0034] Thus, it can be seen that the locking device of the movable device mainly relies on the cooperation between the limit member and the limit hole to achieve the locking of the movable device, and the driving device is mainly used to provide the driving force to the limit member to move it closer to or away from the limit hole. Therefore, the driving force requirement of the driving device is relatively low. In addition, when the related art uses the adsorption effect between the electromagnet and the armature to keep the movable device in a locked state, it can be seen from the force-displacement characteristics of the electromagnet that it requires a high precision of the installation gap between the electromagnet and the armature. However, the embodiment of the utility model achieves the locking or unlocking of the movable device by adding a limit member and allowing the limit member to move in the direction of approaching or moving away from the limit hole, so the installation precision requirements between the components are not high.

[0035] The ultrasonic diagnostic equipment provided by the utility model comprises the locking device of the movable device, and has the same beneficial effects as the locking device of the movable device. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] 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.

[0037] Figure 1 A schematic structural diagram of an ultrasonic diagnostic device provided by a specific embodiment of the present utility model;

[0038] Figure 2 A cross-sectional view of a locking device of a movable device provided in a specific embodiment of the present utility model when the movable device is locked;

[0039] Figure 3 for Figure 2 A cross-sectional view of the movable device when the locking device unlocks the movable device;

[0040] Figure 4 Schematic diagram of force analysis of the limiter;

[0041] Figure 5 An exploded schematic diagram of a limiting member and a driving device of a locking device of a movable device;

[0042] Figure 6 for Figure 1 An exploded view of the moving device and locking device of the ultrasonic diagnostic equipment is shown.

[0043] Reference numerals:

[0044] 1-first structural member; 2-second structural member; 3-limiting hole; 4-limiting member; 41-guide cone; 5-elastic member; 6-guide member; 61-flat surface; 7-bracket; 71-hole; 8-buffer; 91-electromagnetic coil; 92-electromagnetic core; 10-control button; 11-buffer limiting member; 12-guide rail; 13-slider; 14-upper shell; 15-lower shell; 16-turntable connecting block; 17-drag chain; 171-adapter;

[0045] 100- control panel; 200- device body; 300- movable device; 301- lifting device; 302- rotating device; 303- moving device; 400- rotating arm; 500- display. DETAILED DESCRIPTION

[0046] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0047] The core of this utility model is to provide a locking device for a movable device, which can reduce the force required to lock or unlock the movable device while achieving reliable locking. Another core of this utility model is to provide an ultrasonic diagnostic device including the above-mentioned locking device for a movable device, which has the same beneficial effects as the above-mentioned locking device for a movable device.

[0048] Please refer to Figure 1 An embodiment of the present invention provides an ultrasonic diagnostic device, comprising a control panel 100, a device body 200, a movable device 300, a rotating arm 400, and a display 500. The control panel 100 and the device body 200 are connected via the movable device 300, allowing the control panel 100 to move relative to the device body 200. The movable device 300 includes a lifting device 301 connected to the device body 200, a moving device 303 connected to the lifting device 301, and a rotating device 302 connected to the moving device 303 and the control panel 100, respectively. The lifting device 301 is configured to output lifting motion, the moving device 303 is configured to output translational motion, and the rotating device 302 is configured to output rotational motion. Therefore, the movement of the movable device 300 enables the control panel 100 to move in a lifting, translational, and rotational manner, thereby changing the position of the control panel 100 and facilitating user operation of the control panel 100. Furthermore, the display 500 is connected to the control panel 100 via the rotating arm 400. Therefore, when the control panel 100 moves, the display 500 can also move with it.

[0049] In some embodiments, the device body 200 and the lifting device 301, the lifting device 301 and the moving device 303, the moving device 303 and the rotating device 302, and the rotating device 302 and the control panel 100 are all detachably connected, and the interfaces connecting the device body 200 and the lifting device 301, the interfaces connecting the lifting device 301 and the moving device 303, the interfaces connecting the moving device 303 and the rotating device 302, and the interfaces connecting the rotating device 302 and the control panel 100 are consistent. This makes it convenient to install one or more of the lifting device 301, the moving device 303, and the rotating device 302 between the device body 200 and the control panel 100 as needed, thereby improving versatility. It should be noted that this embodiment does not limit the specific detachable connection method, as long as detachable connections and any combination of the device body 200, the lifting device 301, the moving device 303, the rotating device 302, and the control panel 100 can be achieved.

[0050] It can be understood that when the lifting device 301, the moving device 303 and / or the rotating device 302 move to their positions, in order to maintain the position state of the lifting device 301, the moving device 303 and the rotating device 302, a locking device can be used to lock the position of the lifting device 301, the moving device 303 and / or the rotating device 302. Conversely, when the lifting device 301, the moving device 303 and / or the rotating device 302 needs to be readjusted, the locking device can also be used to release the position lock of the lifting device 301, the moving device 303 and / or the rotating device 302.

[0051] To this end, the present invention provides a locking device for a movable device. Figure 2 and Figure 3 The movable device 300 includes a first structural member 1 and a second structural member 2 movably connected to the first structural member 1, one of the first structural member 1 and the second structural member 2 is provided with at least two limiting holes 3, and the at least two limiting holes 3 are arranged along the relative movable direction of the first structural member 1 and the second structural member 2, and the locking device includes a limiting member 4 and a driving device, the limiting member 4 is provided in the other of the first structural member 1 and the second structural member 2, and the limiting member 4 can be moved in a direction close to the limiting hole 3 so that the limiting member 4 can selectively cooperate with the limiting hole 3 for insertion, when the limiting member 4 cooperates with any one of the limiting holes 3, the first structural member 1 and the second structural member 2 are locked; the limiting member 4 can also be moved in a direction away from the limiting hole 3 so that the limiting member 4 is separated from the limiting hole 3, so that the first structural member 1 and the second structural member 2 are unlocked; the driving device is used to provide a driving force to the limiting member 4 to enable it to cooperate with and separate from the limiting hole 3.

[0052] It should be noted that this embodiment does not limit the specific structure of the movable device, as long as the movable device 300 includes a first structural member 1 and a second structural member 2 that can move relative to each other. In addition, this embodiment does not limit the specific movement mode of the movable device 300, that is, the specific connection mode between the first structural member 1 and the second structural member 2 is not limited. As long as the first structural member 1 and the second structural member 2 are movably connected and can ensure the relative position adjustment of the first structural member 1 and the second structural member 2, it is sufficient. For example, one of the first structural member 1 and the second structural member 2 is provided with a movable portion 13, and the other is provided with a buffer limit portion 11 (see Figure 6 ), when the movable portion 13 moves to the end of its travel, it abuts against the buffering and limiting portion 11. That is, when the movable portion 13 moves to the end of its travel, the movable portion 13 contacts the buffering and limiting portion 11, and the buffering and limiting portion 11 acts as a buffer and limiting function for the movable portion 13, thereby preventing the movable portion 13 from generating a large impact or collision when the movable portion 13 moves to the end of its travel and continues to adjust the relative position of the first structural member 1 and the second structural member 2.

[0053] It should be noted that the movable device 300 here can be any device having a first structural member 1 and a second structural member 2 that can move relatively, for example, it can be any one of the lifting device 301, moving device 303 and rotating device 302 in the aforementioned ultrasonic diagnostic equipment. When the movable device is a lifting device 301, the lifting device 301 includes a first structural member 1 and a second structural member 2, and the first structural member 1 and the second structural member 2 can swing relative to each other or move relative to each other in a direction having a vertical component, and the arrangement direction of the limiting holes 3 is the relative swinging direction or relative movement direction of the first structural member 1 and the second structural member 2; when the movable device 300 is a moving device 303, the moving device 303 includes a first structural member 1 and a second structural member 2, then the first structural member 1 and the second structural member 2 can move relative to each other, and the arrangement direction of the limiting holes 3 is the relative movement direction of the first structural member 1 and the second structural member 2; when the movable device 300 is a rotating device 302, the rotating device 302 includes a first structural member 1 and a second structural member 2, then the first structural member 1 and the second structural member 2 can rotate relative to each other, and the arrangement direction of the limiting holes 3 is the relative rotation direction of the first structural member 1 and the second structural member 2, that is, distributed along the circumferential direction.

[0054] For the convenience of description, the movable device 300 is taken as the mobile device 303 below, and the mobile device 303 includes a first structural member 1 and a second structural member 2 for introduction.

[0055] In addition, for the convenience of description, the following is introduced by taking an example in which the limiting hole 3 is provided on the first structural member 1 and the limiting member 4 is provided on the second structural member 2 .

[0056] When the position of the control panel 100 needs to be translated, the driving device is used to drive the limiting member 4 to move in a direction away from the limiting hole 3, so that the limiting member 4 is separated from the limiting hole 3 (such as Figure 3 As shown), the first structural member 1 and the second structural member 2 are unlocked, so that the first structural member 1 and the second structural member 2 can move relative to each other, and then by moving the first structural member 1 and the second structural member 2 relative to each other, the control panel 100 is translated, thereby achieving the purpose of adjusting the position of the control panel 100.

[0057] When the position of the control panel 100 is adjusted to the right position, the limiting member 4 is aligned with one of the limiting holes 3 (it should be emphasized that the "alignment" here does not mean that the central axis is strictly coaxial, as long as the limiting member 4 can finally fall into the limiting hole 3), the driving device drives the limiting member 4 to move in the direction close to the limiting hole 3, so that the limiting member 4 is plugged into the limiting hole 3 aligned with it (such as Figure 2 As shown in FIG, the limiting member 4 cooperates with the limiting hole 3 to lock the first structural member 1 and the second structural member 2, so that the first structural member 1 and the second structural member 2 cannot move relative to each other, thereby ensuring that the translation position of the control panel 100 along the horizontal plane remains unchanged, so that the control panel 100 remains in the adjusted position, which facilitates the user to operate the control panel 100.

[0058] Thus, the locking device of the movable device provided in the embodiment of the present invention primarily relies on the cooperation between the stopper 4 and the stopper hole 3 to achieve locking of the movable device 300. The driving device is primarily used to provide a driving force to the stopper 4 to move it toward or away from the stopper hole 3, rather than to provide a locking force to lock the movable device 300. Therefore, the driving force requirement of the driving device is relatively low. While achieving reliable locking of the movable device 300, the force required to lock or unlock the movable device 300 is reduced, thereby reducing energy waste caused by the need to constantly use the driving force of the driving device to maintain the movable device 300. Furthermore, the related art utilizes the adsorption effect between the electromagnet and the armature to maintain the locked state of the movable device 300. As can be seen from the force-displacement characteristics of the electromagnet, this requires a high precision in the installation gap between the electromagnet and the armature. However, the embodiment of the present invention achieves locking or unlocking of the movable device 300 by adding a stopper 4 and allowing the stopper 4 to move toward or away from the stopper hole 3, thereby reducing the requirement for high precision in the installation of the components.

[0059] It is understood that when the position-limiting member 4 cooperates with different position-limiting holes 3, the control panel 100 is positioned at different locations. Therefore, the number of position-limiting holes 3 arranged along the direction of relative movement between the first structural member 1 and the second structural member 2 determines the number of adjustable positions of the control panel 100. The spacing between two adjacent position-limiting holes 3 along the direction of relative movement between the first structural member 1 and the second structural member 2 determines the position adjustment accuracy. Those skilled in the art can arrange the position-limiting holes 3 with an appropriate number and spacing based on the desired position of the control panel 100 to meet the adjustment requirements of the control panel 100.

[0060] Please continue to refer to Figure 2 and Figure 3 In order to facilitate the entry of the stopper 4 into the stopper hole 3 and to provide the stopper 4 with a certain degree of adaptive adjustment capability, in some embodiments, a guide cone 41 is provided at one end of the stopper 4 for mating with the stopper hole 3. It is understandable that the radial dimension of the guide cone 41 gradually increases from the end of the stopper 4 toward the direction away from the end. Therefore, when the stopper 4 enters the stopper hole 3, the guide cone 41 with its smallest radial dimension first enters the stopper hole 3, with a gap between the stopper 4 and the stopper hole 3. That is, at this time, even if the stopper 4 and the stopper hole 3 are not completely aligned, the guide cone 41 can still enter the stopper hole 3. As the stopper 4 moves in a direction approaching the stopper hole 3, the guide cone 41 contacts the stopper hole 3, thereby achieving the limiting effect of the stopper 4 and the stopper hole 3. It can be seen that this structure has a certain degree of adaptive adjustment capability, facilitates the entry of the stopper 4 into the stopper hole 3, and can reduce the position adjustment accuracy requirements of the control panel 100.

[0061] Furthermore, to reduce the force required to unlock the movable device 300, in some embodiments, when the stopper 4 is engaged with the stopper hole 3, the guide cone 41 and the stopper hole 3 are in line contact. It will be appreciated that line contact has a small contact area, thereby reducing the friction between the guide cone 41 and the stopper hole 3. Therefore, when unlocking the movable device 300, the resistance to be overcome is small, thereby reducing the driving force of the driving device during unlocking.

[0062] like Figure 3As shown, to ensure linear contact between the guide cone 41 and the limiting hole 3, in some embodiments, the limiting hole 3 is a straight hole. When the limiting member 4 is mated and plugged into the limiting hole 3, the outer periphery of the guide cone 41 makes linear contact with the edge of the straight hole. It is understood that the radial dimensions of the straight hole along its axial direction are equal. When the guide cone 41 enters the straight hole, the guide cone 41 contacts the edge of the straight hole at a position with the same diameter as the straight hole. There is a gap between the portion of the guide cone 41 that enters the straight hole and the straight hole, thereby achieving linear contact between the guide cone 41 and the limiting hole 3. This structure is simple and easy to implement. In other words, this embodiment avoids setting the limiting hole 3 as a tapered hole with the same taper as the guide cone 41, avoiding surface contact between the guide cone 41 and the tapered hole, thereby reducing the resistance during unlocking.

[0063] Furthermore, if Figure 2 As shown, in some embodiments, the edge of the straight hole is provided with a rounded corner. It is understood that after the guide cone 41 enters the limiting hole 3, the guide cone 41 contacts the position where the rounded corner corresponds to the inner diameter of the straight hole, and the radial dimensions of the other positions of the rounded corner are larger than the inner diameter of the straight hole. Therefore, the linear contact between the guide cone 41 and the limiting hole 3 can be further ensured.

[0064] Furthermore, in order to ensure locking when the guide cone 41 is in line contact with the limiting hole 3, the guide cone 41 is not easily separated from the limiting hole 3 even under the action of external force, thereby ensuring that the first structural member 1 and the second structural member 2 are not easily displaced. In some embodiments, the relationship between the cone angle 2θ of the guide cone 41 and the friction coefficient μ between the guide cone 41 and the limiting hole 3 is: .

[0065] It is understood that when the control panel 100 is locked and subjected to external force (for example, when the ultrasonic diagnostic device is pushed to move by the control panel 100), the movable device 300 must be able to always be in the locked state, such as Figure 4 As shown, through force analysis, it can be seen that when the limiter 4 is subjected to force due to external force, a positive pressure F is generated between the limiter 4 and the limit hole 3. N At this time, the friction force between the limiting member 4 and the limiting hole 3 is F f , In addition, at this time, the limiting member 4 is also subjected to its own gravity G and the retention force F that makes the limiting member 4 and the limiting hole 3 plug and match. s In order to prevent the limiting member 4 from being separated from the limiting hole 3 when subjected to external force, the force on the limiting member 4 satisfies the following formula:

[0066]

[0067] Here, θ is half of the cone angle of the guide cone 41 .

[0068] It is understandable that after the limiting member 4 is inserted into the limiting hole 3, in order to keep the limiting member 4 and the limiting hole 3 in a plug-in fit state, the holding force F of the driving device on the limiting member 4 is s Usually greater than or equal to the gravity G of the limiter 4 itself, and when F s =G, according to the above formula, That is, when the cone angle of the guide cone 41 and the friction coefficient μ between the limiting member 4 and the limiting hole 3 satisfy the relationship When the limiting member 4 is plugged into the limiting hole 3, the retaining force F s The force G of the limiter 4 is equal to the force G of the limiter 4, and the force G of the limiter 4 can also better resist the external force, ensuring that the first structural member 1 and the second structural member 2 are not easily displaced. Of course, in order to further improve the locking effect, in actual application, the holding force F of the drive device on the limiter 4 can also be increased. s Greater than the gravity G of the limiting member 4. It should be noted that the holding force F s It refers to the force exerted by the driving device on the limiting member 4 when the limiting member 4 and the limiting hole 3 are in the state of being plugged in together; and in the process of driving the limiting member 4 to be plugged in together with the limiting hole 3, in order to be able to drive the limiting member 4 close to the limiting hole 3 and achieve plug-in cooperation with the limiting hole 3, the driving force of the driving device on the limiting member 4 should be greater than the gravity G of the limiting member 4.

[0069] It should be noted that this embodiment does not limit the driving force implementation method for making the limiting member 4 plug and match with the limiting hole 3, as long as the limiting member 4 can be driven to approach the limiting hole 3 and be plugged and matched with the limiting hole 3.

[0070] Please refer to Figure 2 、 Figure 3 and Figure 5In some embodiments, the driving device includes an elastic member 5, which is connected between one of the first structural member 1 and the second structural member 2 and the limiting member 4 (for example, the elastic member 5 is connected between the second structural member 2 and the limiting member 4), and is used to provide an elastic force to the limiting member 4 so that it can be mated and inserted into the limiting hole 3. In other words, when the driving device drives the limiting member 4 to separate from the limiting hole 3, the elastic member 5 is compressed, causing the elastic member 5 to produce elastic deformation. When the relative positions of the first structural member 1 and the second structural member 2 are adjusted to the correct position, the limiting member 4 is elastically inserted into the limiting hole 3 under the action of the elastic force of the elastic member 5, and the elastic force of the elastic member 5 maintains the mating and inserting state of the limiting member 4 and the limiting hole 3, that is, the locking state of the movable device 300. It can be seen that the scheme uses the elastic member 5 to drive the limiting member 4 to move in the direction close to the limiting hole 3, so as to realize the mating connection between the limiting member 4 and the limiting hole 3. After the limiting member 4 is mated with the limiting hole 3, the elastic member 5 is used to maintain this state, which can ensure the stability and reliability of the locking of the movable device 300, and the structure is simple. It should be noted that this embodiment does not limit the specific structure of the elastic member 5. For example, the elastic member 5 can be a spring, a spring or an elastic block. It can be understood that when the elastic member 5 is used to provide the driving force for the mating connection between the limiting member 4 and the limiting hole 3, when the limiting member 4 is mated with the limiting hole 3, the relationship between the cone angle 2θ of the guide cone 41 and the friction coefficient μ between the guide cone 41 and the limiting hole 3 satisfies: When the elastic force F of the elastic member 5 s It can be equal to or slightly greater than the gravity G of the limiter 4. Before the limiter 4 and the limit hole 3 are mated, the elastic member 5 has a large compression amount and a large elastic force, which can bounce the limiter 4 into the limit hole 3.

[0071] In addition, it is understandable that the use of the elastic member 5 to drive the limiting member 4 to engage with the limiting hole 3 does not require high precision in position adjustment of the control panel 100. When the user adjusts the control panel 100 to the desired position, if the limiting hole 3 is aligned with the limiting member 4, the limiting member 4 enters the limiting hole 3 under the action of the elastic member 5. When the limiting member 4 is not aligned with the limiting hole 3, the limiting member 4 can be moved into the closest limiting hole 3 by slightly moving the first structural member 1 or the second structural member 2. Of course, those skilled in the art can set the arrangement of the limiting holes 3 according to the desired position of the control panel 100, but when adjusting the control panel 100, the position adjustment precision of the control panel 100 is not required to be high.

[0072] Also, please refer to Figure 5In order to ensure the smooth movement of the limiter 4 and the correctness of the movement direction, in some embodiments, the locking device of the movable device further includes a guide member 6, which is provided on one of the first structural member 1 and the second structural member 2 (for example, the guide member 6 is provided on the second structural member 2). The guide member 6 is slidably connected to the limiter 4 to slide and limit the limiter 4 during the process of the limiter 4 and the limiting hole 3 being plugged in or separated. In other words, when the driving device drives the limiter 4 to approach or move away from the limiting hole 3, the limiter 4 moves along the direction defined by the guide member 6, so that the limiter 4 moves smoothly and the correctness of the movement direction of the limiter 4 can be ensured. In some embodiments, the guide member 6 is provided with a slide groove, and the limiter 4 can be slidably provided in the slide groove, that is, when the limiter 4 moves, it slides in the slide groove.

[0073] Furthermore, in some embodiments, there is a gap between the limit member 4 and the guide member 6, so that when the limit member 4 is not completely aligned with the limit hole 3, its radial position can be adjusted to adapt to the position of the limit hole 3, thereby reducing the alignment accuracy requirement between the limit member 4 and the limit hole 3.

[0074] In addition, if Figure 5 As shown, to facilitate installation of the guide member 6, in some embodiments, the guide member 6 is provided with a flat surface 61. The flat surface 61 is used to withstand installation forces during installation of the guide member 6. In other words, when the guide member 6 is installed on the first structural member 1 or the second structural member 2, external force is applied to the flat surface 61 to achieve installation of the guide member 6. For example, if the guide member 6 is threadedly connected to the second structural member 2, a rotational force can be applied to the guide member 6 by clamping the flat surface 61 during installation, thereby facilitating the screwing of the guide member 6 and achieving a threaded connection between the guide member 6 and the second structural member 2.

[0075] In addition, to facilitate the placement of the elastic member 5, in some embodiments, the elastic member 5 is disposed between the limiting member 4 and the guide member 6. Furthermore, in some embodiments, the limiting member 4 is provided with a limiting post at one end facing away from the guide cone 41, and the elastic member 5 is a spring that is sleeved around the outer periphery of the limiting post; the guide member 6 is provided with a limiting groove, and the spring is disposed within the limiting groove.

[0076] In addition, the above embodiments do not limit the specific structure and method of the driving device driving the limiting member 4 to separate from the limiting hole 3, as long as it can provide driving force for the limiting member 4 to separate from the limiting hole 3.

[0077] Please refer to Figure 2 、 Figure 3 and Figure 5In some embodiments, the driving device includes an electromagnet coil 91 and an electromagnet core 92. The electromagnet coil 91 is connected to one of the first and second structural members 1 and 2 where the limit member 4 is located (for example, the electromagnet coil 91 is connected to the second structural member 2). The electromagnet core 92 is connected to the limit member 4 and is configured to provide a driving force to separate the limit member 4 from the limit hole 3 when the electromagnet coil 91 is energized. In other words, this embodiment utilizes the magnetic attraction of an electromagnet to unlock the movable device 300. The electromagnet is an energized unlocking electromagnet. When the electromagnet coil 91 is energized, an adsorption force is generated between the electromagnet coil 91 and the electromagnet core 92, so that the electromagnet core 92 is attracted to the electromagnet coil 91. The adsorption force is then used to drive the electromagnet core to drive the limit member 4 to move in a direction away from the limit hole 3, so that the limit member 4 is separated from the limit hole 3, thereby unlocking the movable device 300. At this time, the control panel 100 is in an active state and can be adjusted to a desired working position; when the electromagnet coil 91 is de-energized, the adsorption force between the electromagnet coil 91 and the electromagnet core 92 disappears, so that the limit member 4 can move in a direction close to the limit hole 3 under the action of another driving force of the driving device (such as the elastic force of the aforementioned elastic member) and cooperate with the limit hole 3.

[0078] like Figure 5 As shown, in some embodiments, the driving device is a combination of the above-mentioned electromagnet and the above-mentioned elastic member 5, that is, the movable device 300 is unlocked by utilizing the adsorption force of the electromagnet coil 91 and the electromagnet core 92. In the process of the electromagnet core 92 and the electromagnet coil 91 being attracted, the elastic member 5 is compressed to generate an elastic force. When the electromagnet coil 91 is powered off, the adsorption force between the electromagnet coil 91 and the electromagnet core 92 disappears, and the elastic force of the elastic member 5 is utilized to drive the limiting member 4 to move toward the limiting hole 3, thereby realizing the matching connection between the limiting member 4 and the limiting hole 3, so that the movable device 300 is in a locked state.

[0079] It can be understood that the embodiment of the present invention only uses the magnetic attraction of the electromagnet to provide driving force for the movement of the limit member 4 away from the limit hole 3, and does not provide locking force for the limit member 4. Therefore, the suction force requirement of the electromagnet is relatively low, so that a smaller electromagnet can meet the use requirements. The electromagnet is small in size and occupies little space, which can make the structure more compact.

[0080] In addition, in order to facilitate the control of the on and off of the electromagnet coil 91, in some embodiments, the locking device of the movable device further includes a control button 10 (such as Figure 1As shown, the control button 10 is used to control the power on and off of the electromagnet coil 91. Specifically, the control button 10 is electrically connected to the electromagnet coil 91. Operating the control button 10 switches the power on and off for the electromagnet coil 91. Therefore, when adjusting the position of the control panel 100, operating the control button 10 can unlock and lock the movable device 300. For example, in some embodiments, pressing the control button 10 energizes the electromagnet coil 91; releasing the control button 10 de-energizes the electromagnet coil 91. Of course, in other embodiments, the control button 10 can also be controlled in other ways, which will not be detailed here.

[0081] Please refer to Figure 1 Considering the convenience of operation, in some embodiments, the control button 10 is located at the handle position of the control panel 100.

[0082] In addition to utilizing the magnetic attraction of the electromagnet to drive the stopper 4 away from the stopper hole 3, another approach is also possible: in some embodiments, the control panel 100 is provided with a handle connected to the stopper 4 via a cable. When the movable device 300 needs to be unlocked, the handle is operated, and the cable is used to pull the stopper 4 away from the stopper hole 3, thereby unlocking the movable device 300. Of course, in other embodiments, a pneumatic cylinder, an electric push rod, or the like can also be used to drive the stopper 4 away from the stopper hole 3.

[0083] In addition, it should be noted that the above-mentioned embodiments do not limit the specific number of the limiting members 4. The number of limiting members 4 can be one. When the movable device 300 is locked, the movable device 300 is locked by the mating engagement of one limiting member 4 with one limiting hole 3. The number of limiting members 4 can also be at least two. In this case, the number of limiting holes 3 is at least three. When the movable device 300 is locked, the movable device 300 is locked by mating engagement of two or more limiting members 4 with corresponding limiting holes 3, thereby improving the stability and reliability of the movable device 300 when locked.

[0084] Please continue to refer to Figure 5In some embodiments, the number of the limiting members 4 is at least two, and the locking device further includes a bracket 7, and at least two limiting members 4 are connected to the electromagnet core 92 through the bracket 7. That is, when the number of the limiting members 4 is at least two, this embodiment connects the at least two limiting members 4 together through the bracket 7 by adding a bracket 7. In this way, it is convenient for the driving device to apply a driving force to the bracket 7 to drive the limiting members 4 connected to the bracket 7 to move together. For example, the electromagnet core 92 is provided on the bracket 7. When the electromagnet coil 91 is energized, an adsorption force is generated between the electromagnet coil 91 and the electromagnet core 92, causing the electromagnet core 92 to be attracted to the electromagnet coil 91, thereby causing the electromagnet core 92 to drive the bracket 7 to move, and then causing the bracket 7 to drive the at least two limiting members 4 connected thereto to move synchronously, so that the limiting members 4 are separated from the corresponding limiting holes 3. It should be noted that the number of brackets 7 can be one or at least two. When the number of brackets 7 is one, all the limiting parts 4 are connected together through one bracket 7. When the number of brackets 7 is at least two, one bracket 7 is connected to at least two limiting parts 4, and all the limiting parts 4 are grouped and connected through more than two brackets 7.

[0085] In some embodiments, the stopper 4 has a clearance fit with the bracket 7 in its radial direction. It is understood that when there are multiple stoppers 4, it becomes more difficult to align multiple stoppers 4 with corresponding stopper holes 3 simultaneously. Therefore, it is necessary to provide a clearance fit between the stopper 4 and the bracket 7 in its radial direction to reserve radial movement space for the stopper 4. It is understood that in the axial direction of the stopper 4, or in other words, in the direction of movement of the stopper 4, the stopper 4 and the bracket 7 are relatively fixed to achieve synchronous movement of the stopper 4 and the bracket 7.

[0086] It should be noted that this embodiment does not limit the specific connection method between the position-limiting member 4 and the bracket 7; as long as the position-limiting member 4 and the bracket 7 can be connected, it is sufficient. In some embodiments, the bracket 7 is provided with a mounting hole, and the guide cone 41 is inserted into the mounting hole. The position-limiting member 4 is provided with a stop shoulder on the side of the position-limiting member 4 near the location where the guide cone 41 has the largest diameter. The stop shoulder is configured to abut one side of the mounting hole, and an open retaining ring is provided on the other side of the mounting hole for engaging with the guide cone 41. In other words, the position-limiting member 4 is axially limited by the stop shoulder and the open retaining ring respectively engaging with the two sides of the mounting hole, thereby securing the position-limiting member 4 relative to the bracket 7 along its axial direction.

[0087] In addition, the above embodiment does not limit the specific shape of the bracket 7, as long as the bracket 7 can play the role of connecting two or more limit members 4. Figure 2 、 Figure 3 and Figure 5In some embodiments, the first structural member 1 and the second structural member 2 are slidably connected and a wiring harness is connected therebetween; the bracket 7 has a recessed portion, and a clearance space 71 for the wiring harness to pass through is formed between the recessed portion and one of the first structural member 1 and the second structural member 2, and at least two stoppers 4 are provided on both sides of the recessed portion. In other words, in this embodiment, by rationally designing the shape of the bracket 7, the recessed portion of the bracket 7 and the first structural member 1 or the second structural member 2 form a clearance space 71, so that the wiring harness and the like can pass through the clearance space 71, facilitating the layout of the wiring harness and making the overall structure compact. It should be noted that the specific shape of the clearance space 71 in this embodiment is not limited, as long as it can allow the wiring harness to pass through. In some embodiments, the bracket 7 is a U-shaped bracket 7, and an outwardly extending mounting plate is provided at each end of the U-shaped bracket 7. The stoppers 4 are connected to the mounting plate, and the space between the two opposing straight plates of the U-shaped bracket 7 serves as a recess for the wiring harness to pass through.

[0088] Furthermore, the above embodiment does not limit the specific relative positions of the limiter 4, the bracket 7 and the electromagnet core 92, as long as it can be achieved that when the electromagnet coil 91 is energized, the electromagnet core 92 can drive the bracket 7 and the limiter 4 connected to the bracket 7 to move as a whole.

[0089] In some embodiments, there are two stoppers 4, which are symmetrically arranged about the central axis of the bracket 7. The central axis of the bracket 7 is coaxial with the central axis of the electromagnet core 92. In other words, in this embodiment, the electromagnet core 92 is located at the central axis of the bracket 7, and the two stoppers 4 are symmetrically arranged about the central axis of the bracket 7. This symmetrical structure not only makes the force more uniform and reliable, but also makes the structure more stable.

[0090] Also, please continue to refer to Figure 5 In order to prevent the bracket 7 from directly contacting the first structural member 1 and the second structural member 2 during the movement of the bracket 7 and the limit member 4, thereby preventing a collision and impact, in some embodiments, the bracket 7 is provided with a buffer member 8 on the surface facing the first structural member 1 and the second structural member 2. In other words, this embodiment prevents the bracket 7 from directly contacting the first structural member 1 and the second structural member 2 by providing the buffer member 8. The buffer member 8 has a buffering effect, can mitigate impact and collision, and can reduce the generation of noise. It should be noted that this embodiment does not limit the specific material, shape, or connection method of the buffer member 8 to the bracket 7. For example, the buffer member 8 includes a buffer pad, and the buffer pad is bonded to the bracket 7.

[0091] As one specific implementation method, Figure 6 As shown, Figure 1The figure shows an exploded view of the movable device and its locking device of the ultrasonic diagnostic equipment. The first structural member 1 of the movable device 303 is a top plate, and the second structural member 2 is a base plate. The top plate is arranged parallel to the base plate, and the top plate is connected to a guide rail 12. The base plate is connected to a slider 13 (as the aforementioned movable part). The slider 13 is slidably connected to the guide rail 12, so that the top plate can translate relative to the base plate. A buffer limit portion 11 is provided at the end of the travel of the guide rail 12. When the slider 13 moves to the end of the travel of the guide rail 12, the slider 13 can contact the buffer limit portion 11 to avoid a large impact collision. Furthermore, in some embodiments, the limit holes 3 are distributed on the top plate, and the limit member 4 can be movably provided on the base plate in a direction close to or away from the limit holes 3. For example, the guide member 6 is connected to the base plate, and the limit member 4 is slidably connected to the guide member 6. That is, the limit member 4 is movably provided on the base plate through the guide member 6. In some embodiments, the top plate is connected to an upper shell 14, and the base plate is connected to a lower shell 15. The upper shell 14 covers the outer periphery of the top plate, and the lower shell 15 covers the outer periphery of the base plate. The upper and lower shells 14, 15 are able to slide relative to each other. Furthermore, in some embodiments, the upper shell 14 surrounds at least a portion of the lower shell 15 adjacent to the upper shell 14, thereby preventing at least some components located between the upper and lower shells 14, 15 from being exposed. This improves aesthetics and also protects components located between the upper and lower shells 14, 15. Furthermore, a turntable connection block 16 is provided within the top plate. This turntable connection block 16 can be detachably connected to the rotating device 302 or the control panel 100. This allows the rotating device 302 to be added or removed between the movable device 303 and the control panel 100 as needed. Furthermore, to facilitate wiring harness installation, in some embodiments, the wiring harness is housed within a drag chain 17, with both ends of the drag chain 17 connected to the base plate and the top plate, respectively, via adapters 171.

[0092] It should also be noted that, in this specification, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0093] 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.

[0094] The above describes in detail the locking device for the movable device and the ultrasonic diagnostic device provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above examples is 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 present invention.

Claims

1. A locking device for a movable device, characterized in that: The movable device (300) comprises a first structural member (1) and a second structural member (2) movably connected to the first structural member (1), one of the first structural member (1) and the second structural member (2) is provided with at least two limiting holes (3), and the at least two limiting holes (3) are arranged along the relative movable direction of the first structural member (1) and the second structural member (2), and the locking device comprises: A limiting member (4) is provided on the other of the first structural member (1) and the second structural member (2), and can be moved in a direction close to the limiting hole (3) and selectively engaged with the limiting hole (3) to lock the first structural member (1) and the second structural member (2); and can be moved in a direction away from the limiting hole (3) and separated from the limiting hole (3) to unlock the first structural member (1) and the second structural member (2); A driving device is used to provide a driving force to the limiting member (4) so ​​as to enable it to be plugged into and separated from the limiting hole (3).

2. The locking device of the movable device according to claim 1, characterized in that: One end of the limiting member (4) for mating with the limiting hole (3) is provided with a guide cone (41).

3. The locking device of the movable device according to claim 2, characterized in that: When the limiting member (4) is plugged into the limiting hole (3), there is line contact between the guide cone (41) and the limiting hole (3).

4. The locking device of the movable device according to claim 3, characterized in that: The limiting hole (3) is a straight hole, and when the limiting member (4) is plugged into the limiting hole (3), the outer periphery of the guide cone (41) is in line contact with the edge of the straight hole.

5. The locking device of the movable device according to claim 4, characterized in that: The edge portion is provided with rounded corners.

6. The locking device of the movable device according to claim 3, characterized in that: The relationship between the cone angle 2θ of the guide cone (41) and the friction coefficient μ between the guide cone (41) and the limiting hole (3) is: .

7. The locking device of the movable device according to any one of claims 1 to 6, characterized in that: Also includes: A guide member (6) is provided on the other of the first structural member (1) and the second structural member (2), and is slidably connected to the limiting member (4) to slidably limit the limiting member (4) during the process of the limiting member (4) and the limiting hole (3) being plugged in or separated.

8. The locking device of the movable device according to any one of claims 1 to 6, characterized in that: The driving device comprises: an electromagnet coil (91) provided in the other of the first structural member (1) and the second structural member (2); and an electromagnet core (92) connected to the limiting member (4) and used to provide a driving force to separate the limiting member (4) from the limiting hole (3) when the electromagnet coil (91) is energized; and / or, An elastic member (5) is connected between the other of the first structural member (1) and the second structural member (2) and the limiting member (4), and is used to provide a driving force to the limiting member (4) so ​​that the limiting member (4) can be plugged into the limiting hole (3).

9. The locking device of the movable device according to claim 8, characterized in that: The number of the limiting members (4) is at least two; the locking device further comprises: A bracket (7), wherein at least two of the limiting members (4) are connected to the electromagnet core (92) via the bracket (7).

10. The locking device of the movable device according to claim 9, characterized in that: The limiting member (4) is clearance-matched with the bracket (7) in its radial direction.

11. The locking device of the movable device according to claim 9, characterized in that: The first structural member (1) and the second structural member (2) are slidably connected and a wiring harness is connected therebetween; the bracket (7) has a recess, and an escape space (71) for the wiring harness to pass through is formed between the recess and one of the first structural member (1) and the second structural member (2); at least two of the limiting members (4) are arranged on both sides of the recess.

12. The locking device of the movable device according to claim 11, characterized in that: The number of the limiting members (4) is two, and the two limiting members (4) are symmetrically arranged about the central axis of the bracket (7), and the central axis of the bracket (7) is coaxial with the central axis of the electromagnet core (92).

13. The locking device of the movable device according to claim 9, characterized in that: A buffer member (8) is provided on the surface of the bracket (7) facing the first structural member (1) and / or the second structural member (2).

14. An ultrasonic diagnostic device, characterized in that: The invention comprises a control panel (100), a device body (200), a movable device (300) and a locking device of the movable device according to any one of claims 1 to 13, wherein the control panel (100) and the device body (200) are connected via the movable device (300).

15. The ultrasonic diagnostic equipment according to claim 14, characterized in that The movable device (300) comprises: A moving device (303) comprises the first structural member (1) and a second structural member (2) slidably connected to the first structural member (1), and is locked or unlocked by the locking device of the movable device.

Images