Locking device of movable device and ultrasonic diagnosis equipment

Abstract

The invention discloses a locking device of a movable device and ultrasonic diagnosis equipment, the movable device comprises a first structural member and a second structural member movably connected with the first structural member, and one of the first structural member and the second structural member is provided with at least two limiting holes arranged along the relative movement direction of 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] This invention relates to the field of medical device technology, and more specifically, to a locking device for a movable device. Furthermore, this invention also relates to an ultrasound diagnostic device including the aforementioned locking device for the movable device. Background Technology

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

[0003] In related technologies, the position of the control panel is adjusted by moving the movable device. When the adjustment is complete, the attraction between the electromagnet and the armature locks the movable device. When the position of the control panel needs to be readjusted, the attraction between the electromagnet and the armature is released by cutting off the power, thus unlocking the movable device. In this scheme, the locking force of the movable device is provided by the magnetic attraction between the electromagnet and the armature. This requires the electromagnet to have a large magnetic force; otherwise, the locking effect will not be achieved. Furthermore, maintaining the magnetic force of the electromagnet in the locked state can easily lead to energy waste.

[0004] Therefore, how to reduce the force required to lock or unlock the moving device while achieving reliable locking is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

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

[0006] Another object of the present invention is to provide an ultrasound diagnostic device including a locking device for the aforementioned movable device, which can reduce the force required to lock or unlock the movable device while achieving reliable locking.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[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 having at least two limiting holes, the at least two limiting holes being arranged along the relative movement direction of the first structural member and the second structural member, the locking device comprising:

[0009] A limiting member, disposed in the other of the first structural member and the second structural member, is movable in a direction close to the limiting hole, selectively engaging with the limiting hole to lock the first structural member and the second structural member, and is movable in a direction away from the limiting hole to separate from the limiting hole to unlock the first structural member and the second structural member.

[0010] A driving device is used to provide a driving force to the limiting member to engage and disengage it from the limiting hole.

[0011] Optionally, the end of the limiting member used to engage with the limiting hole is provided with a guide cone.

[0012] Optionally, when the limiting member is inserted into the limiting hole, the guide cone and the limiting hole are in line contact.

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

[0014] Optionally, the edge portion has 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 as follows: .

[0016] Optionally, it also includes:

[0017] A guide member, disposed in the other of the first structural member and the second structural member, is slidably connected to the limiting member to slide and limit the limiting member during the process of the limiting member engaging or disengaging with the limiting hole.

[0018] Optionally, the driving device includes:

[0019] An electromagnet coil, disposed in the other of the first structural member and the second structural member; and

[0020] An electromagnet core, connected to the limiting member, is used to provide a driving force to the limiting member to separate it from the limiting hole when the electromagnet coil is energized.

[0021] And / or,

[0022] An elastic element, connected between the other of the first and second structural elements and the limiting element, is used to provide the limiting element with a driving force for its insertion into the limiting hole.

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

[0024] The bracket, at least two of the limiting members, are connected to the electromagnet core via the bracket.

[0025] Optionally, the limiting member has a clearance fit with the bracket in its radial direction.

[0026] Optionally, the first structural member and the second structural member are slidably connected and a wire harness is connected between them; the bracket has a recess, and the recess forms a clearance space between the first structural member and the second structural member for the wire harness to pass through, and at least two limiting members are disposed on both sides of the recess.

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

[0028] Optionally, the support has a buffer on the surface facing the first structural member and / or the second structural member.

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

[0030] Optionally, the active device includes:

[0031] A mobile device comprising a first structural member and a second structural member slidably connected to the first structural member, and locked or unlocked by a locking device of the mobile device.

[0032] The locking device for the movable device provided by the present invention has the following beneficial effects:

[0033] When it is necessary to adjust the relative position of the first and second structural components, the driving device drives the limiting member to move away from the limiting hole, separating the limiting member from the limiting hole and releasing the lock on the first and second structural components. This allows the first and second structural components to move relative to each other, achieving the purpose of adjusting their relative position. Once the relative position of the first and second structural components is adjusted to the correct position, the limiting member aligns with one of the limiting holes. The driving device then drives the limiting member to move closer to the limiting hole, causing it to engage with the aligned limiting hole. This engagement of the limiting member and the limiting hole effectively locks the first and second structural components, preventing them from moving relative to each other and ensuring that their relative position remains unchanged.

[0034] Therefore, the locking device of this movable device mainly relies on the cooperation between the limiting member and the limiting hole to lock the movable device. The driving device is mainly used to provide driving force to the limiting member to move it closer to or away from the limiting hole. Therefore, the driving force requirement of the driving device is relatively low. Moreover, related technologies use the attraction between an electromagnet and an armature to keep the movable device in a locked state. According to the force-displacement characteristics of the electromagnet, the accuracy requirement of the installation gap between the electromagnet and the armature is relatively high. However, the embodiment of this invention adds a limiting member and allows the limiting member to move in the direction of moving closer to or away from the limiting hole to lock or unlock the movable device. Therefore, the installation accuracy requirement between the components is not high.

[0035] The ultrasound diagnostic device provided by the present invention includes a locking device for the aforementioned movable device, and has the same beneficial effects as the locking device for the aforementioned movable device. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the structure of the ultrasound diagnostic device provided in a specific embodiment of the present invention;

[0038] Figure 2 A cross-sectional view of the locking device of the movable device provided in a specific embodiment of the present invention 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 This is a schematic diagram of the force analysis of the limiting component;

[0041] Figure 5 An exploded view of the limiting component and the driving device of the locking device of the movable device;

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

[0043] Figure label:

[0044] 1-First structural component; 2-Second structural component; 3-Limiting hole; 4-Limiting component; 41-Guide cone; 5-Elastic component; 6-Guide component; 61-Straight surface; 7-Bracket; 71-Hole; 8-Buffer component; 91-Electromagnet coil; 92-Electromagnet core; 10-Control button; 11-Buffer limiting part; 12-Guide rail; 13-Slider; 14-Upper shell; 15-Lower shell; 16-Turntable connecting block; 17-Drag chain; 171-Adapter component;

[0045] 100-Control panel; 200-Equipment body; 300-Moving device; 301-Lifting device; 302-Rotating device; 303-Moving device; 400-Rotating arm; 500-Display. Detailed Implementation

[0046] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] The core of this invention is to provide a locking device for a movable device that reduces the force required to lock or unlock the movable device while achieving reliable locking. Another core aspect of this invention is to provide an ultrasound diagnostic device that includes the aforementioned locking device for the movable device, possessing the same beneficial effects as the aforementioned locking device for the movable device.

[0048] Please refer to Figure 1 This invention provides an ultrasound diagnostic device, which includes 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 both the moving device 303 and the control panel 100. The lifting device 301 outputs lifting motion, the moving device 303 outputs translational motion, and the rotating device 302 outputs rotational motion. Therefore, by moving the movable device 300, the control panel 100 can be moved vertically, horizontally, and vertically, thereby changing its position and facilitating user operation. 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 moves along with it.

[0049] In some embodiments, the connections between the device body 200 and the lifting device 301, between the lifting device 301 and the moving device 303, between the moving device 303 and the rotating device 302, and between the rotating device 302 and the control panel 100 are all detachable. Furthermore, the interfaces connecting 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 consistent. This allows for the installation of 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, improving versatility. It should be noted that this embodiment does not limit the specific detachable connection method, as long as it enables detachable connections and arbitrary combinations between the device body 200, the lifting device 301, the moving device 303, the rotating device 302, and the control panel 100.

[0050] It is understandable that when the lifting device 301, the moving device 303, and / or the rotating device 302 are in position, in order to maintain the position 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 need 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] Therefore, embodiments of the present invention provide a locking device for a movable device. Please refer to... 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, which are arranged along the relative movement direction of the first structural member 1 and the second structural member 2. 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 move in the direction close to the limiting hole 3 so that the limiting member 4 can selectively engage with the limiting hole 3. When the limiting member 4 engages 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 move in the direction away from the limiting hole 3 so that the limiting member 4 is separated from the limiting hole 3, thereby unlocking the first structural member 1 and the second structural member 2. The driving device is used to provide a driving force to the limiting member 4 to engage and disengage with 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 relatively movable first structural member 1 and a relatively movable second structural member 2. Furthermore, this embodiment does not limit the specific movement method of the movable device 300, that is, it does not limit the specific connection method between the first structural member 1 and the second structural member 2, as long as the movable connection between the first structural member 1 and the second structural member 2 can ensure the adjustment of their relative positions. For example, one of the first structural member 1 and the second structural member 2 is provided with a movable part 13, and the other is provided with a buffer limiting part 11 (see...). Figure 6 When the movable part 13 reaches the end of its stroke, it comes into contact with the buffer limiting part 11. In other words, when the movable part 13 reaches the end of its stroke, it comes into contact with the buffer limiting part 11. The buffer limiting part 11 acts as a buffer and limiter for the movable part 13, preventing the movable part 13 from experiencing a large impact collision when it reaches the end of its stroke 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 relatively movable first structural member 1 and a second structural member 2, such as any one of the lifting device 301, moving device 303 and rotating device 302 in the aforementioned ultrasound 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. 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 with a vertical component. The arrangement direction of the limiting holes 3 is the relative swing 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. The first structural member 1 and the second structural member 2 can move relative to each other. 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. The first structural member 1 and the second structural member 2 can rotate relative to each other. 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 ease of description, the moving device 303 will be referred to as the moving device 303 below. The moving device 303 includes a first structural member 1 and a second structural member 2.

[0055] In addition, for ease of description, the following description will take the example of the limiting hole 3 being located in the first structural member 1 and the limiting member 4 being located in the second structural member 2.

[0056] When it is necessary to move the control panel 100 to a different position, the driving device is used to drive the limiting member 4 to move away from the limiting hole 3, so that the limiting member 4 separates from the limiting hole 3 (e.g., Figure 3 As shown), the locking of the first structural member 1 and the second structural member 2 is released, thereby allowing the first structural member 1 and the second structural member 2 to move relative to each other. In turn, 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] After the control panel 100 is positioned correctly, the limiting member 4 is aligned with one of the limiting holes 3 (it should be emphasized that "alignment" here does not mean strict coaxiality of the central axis; it is sufficient that the limiting member 4 can ultimately fall into the limiting hole 3). The driving device then drives the limiting member 4 to move towards the limiting hole 3, so that the limiting member 4 engages and inserts with the aligned limiting hole 3 (e.g., ...). Figure 2 As shown in the figure, the limiting member 4 and the limiting hole 3 cooperate to limit the locking of 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. This ensures that the translation position of the control panel 100 along the horizontal plane remains unchanged, and keeps the control panel 100 in the adjusted position so that the user can operate the control panel 100.

[0058] Therefore, the locking device of the movable device provided in this embodiment of the invention mainly relies on the cooperation between the limiting member 4 and the limiting hole 3 to lock the movable device 300. The driving device is mainly used to provide a driving force to the limiting member 4 to move it closer to or away from the limiting 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 low. In the case of reliably locking the movable device 300, reducing the force required to lock or unlock the movable device 300 can reduce the energy waste caused by constantly using the driving force of the driving device to keep the movable device 300. Moreover, the related technology uses the attraction between the electromagnet and the armature to keep the movable device 300 locked. According to the force-displacement characteristics of the electromagnet, the accuracy requirement of the installation gap between the electromagnet and the armature is high. However, this embodiment of the invention adds a limiting member 4 and allows the limiting member 4 to move in the direction of moving closer to or away from the limiting hole 3 to lock or unlock the movable device 300, so the installation accuracy requirement between the components is not high.

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

[0060] Please continue to refer to this. Figure 2 and Figure 3 To facilitate the insertion of the limiting member 4 into the limiting hole 3 and to provide the limiting member 4 with a certain degree of self-adjustment capability, in some embodiments, the end of the limiting member 4 that is used to engage with the limiting hole 3 is provided with a guide cone 41. It is understood that the radial dimension of the guide cone 41 gradually increases from the end of the limiting member 4 towards the direction away from that end. Therefore, when the limiting member 4 enters the limiting hole 3, the smallest radial dimension of the guide cone 41 first enters the limiting hole 3, leaving a gap between it and the limiting hole 3. That is, even if the limiting member 4 and the limiting hole 3 are not perfectly aligned, the guide cone 41 can still enter the limiting hole 3. As the limiting member 4 moves towards the limiting hole 3, the guide cone 41 contacts the limiting hole 3, achieving the limiting function of the limiting member 4 and the limiting hole 3. Thus, this structure has a certain degree of self-adjustment capability, facilitating the insertion of the limiting member 4 into the limiting hole 3 and reducing the position adjustment accuracy requirements of the control panel 100.

[0061] Furthermore, in order to reduce the force required to release the locked state of the movable device 300, in some embodiments, when the limiting member 4 and the limiting hole 3 are engaged, the guide cone 41 and the limiting hole 3 are in line contact. It is understood that the contact area of ​​the line contact is small, thereby reducing the frictional force between the guide cone 41 and the limiting hole 3. Therefore, when releasing the locked state of the movable device 300, the resistance to overcome is small, thus reducing the driving force of the drive device during unlocking.

[0062] like Figure 3As shown, to ensure line 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 inserted into the limiting hole 3, the outer periphery of the guide cone 41 makes line contact with the edge of the straight hole. It can be understood that the radial dimension of the straight hole is equal everywhere along its axial direction. When the guide cone 41 enters the straight hole, the position where the guide cone 41 has the same diameter as the straight hole contacts the edge of the straight hole. There is a gap between the portion of the guide cone 41 that enters the straight hole and the straight hole, thus achieving line contact between the guide cone 41 and the limiting hole 3. This structure is simple and easy to implement. That is, 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 resistance during unlocking.

[0063] Furthermore, such as Figure 2 As shown, in some embodiments, the edge of the straight hole is provided with a rounded corner. It can be understood that after the guide cone 41 enters the limiting hole 3, the guide cone 41 contacts the position of the rounded corner corresponding to the inner diameter of the straight hole, and the radial dimension of other positions of the rounded corner is larger than the inner diameter of the straight hole. Therefore, it can further ensure the line contact between the guide cone 41 and the limiting hole 3.

[0064] Furthermore, in order to ensure locking even when the guide cone 41 is in line contact with the limiting hole 3, and to prevent the guide cone 41 from easily disengaging from the limiting hole 3 even under external force, thus 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 coefficient of friction μ between the guide cone 41 and the limiting hole 3 is as follows: .

[0065] Understandably, when the control panel 100 is locked in position and subjected to external force (e.g., when the ultrasound diagnostic equipment is moved via the control panel 100), the movable device 300 must always remain locked, such as... Figure 4 As shown, force analysis reveals that when the limiting member 4 is subjected to force due to external force, a positive pressure F is generated between the limiting member 4 and the limiting hole 3. N At this time, the frictional 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 weight G and the retaining force F that makes the limiting member 4 fit into the limiting hole 3. s To prevent the limiting member 4 from disengaging from the limiting hole 3 under external force, the force on the limiting member 4 satisfies the following formula:

[0066]

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

[0068] Understandably, after the limiting member 4 is inserted into the limiting hole 3, in order to maintain the insertion and engagement between the limiting member 4 and the limiting hole 3, the driving device applies a holding force F to the limiting member 4. s It is usually greater than or equal to the weight G of the limiting component 4 itself, while when F s When =G, according to the above formula, we know that That is, when the cone angle of the guide cone 41 and the coefficient of friction μ between the limiting member 4 and the limiting hole 3 satisfy the relationship... Even when the retaining force F of the limiting member 4 and the limiting hole 3 are engaged, s The force G is equal to the weight of the limiting member 4, which can also effectively resist external forces and ensure that the first structural member 1 and the second structural member 2 are not easily displaced. Of course, to further improve the locking effect, in practical applications, the holding force F of the driving device on the limiting member 4 can also be increased. s The weight G is greater than that of the limiting component 4. It should be noted that the holding force F mentioned here... s This 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 engaged and plugged in. During the process of driving the limiting member 4 to engage and plug in the limiting hole 3, in order to drive the limiting member 4 to approach the limiting hole 3 and engage with the limiting hole 3, the driving force of the driving device on the limiting member 4 should be greater than the weight G of the limiting member 4.

[0069] It should be noted that this embodiment does not limit the driving force for the limiting member 4 to be inserted into the limiting hole 3, as long as it can drive the limiting member 4 to approach the limiting hole 3 and be inserted into the limiting hole 3.

[0070] Please refer to Figure 2 , Figure 3 and Figure 5In some embodiments, the driving device includes an elastic element 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 element 5 is connected between the second structural member 2 and the limiting member 4). The elastic element 5 provides elastic force to the limiting member 4 to engage with the limiting hole 3. That is, when the driving device drives the limiting member 4 to separate from the limiting hole 3, it compresses the elastic element 5, causing it to elastically deform. After the relative positions of the first structural member 1 and the second structural member 2 are adjusted to their positions, the limiting member 4, under the elastic force of the elastic element 5, springs into the limiting hole 3 and maintains the engagement state between the limiting member 4 and the limiting hole 3 under the elastic force of the elastic element 5; that is, the locked state of the movable device 300. It can be seen that this scheme uses the elastic element 5 to drive the limiting element 4 to move in the direction close to the limiting hole 3, realizing the engagement of the limiting element 4 and the limiting hole 3. After the limiting element 4 and the limiting hole 3 are engaged, the elastic element 5 maintains 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 element 5. For example, the elastic element 5 can be a spring, a spring sheet, or an elastic block, etc. It can be understood that when the elastic element 5 provides the driving force for the engagement of the limiting element 4 and the limiting hole 3, in the state of engagement of the limiting element 4 and 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: At that time, the elastic force F of elastic element 5 s The force of the elastic element 5 can be equal to or slightly greater than the weight G of the limiting element 4. Before the limiting element 4 and the limiting hole 3 are engaged, the elastic element 5 has a large compression and a large elastic force, which can push the limiting element 4 into the limiting hole 3.

[0071] Furthermore, it is understandable that using the elastic element 5 to drive the limiting element 4 to engage with the limiting hole 3 does not require high precision in the 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 element 4, the limiting element 4 will enter the limiting hole 3 under the action of the elastic element 5. If the limiting element 4 is not aligned with the limiting hole 3, the limiting element 4 can be moved into the nearest limiting hole 3 by slightly moving the first structural element 1 or the second structural element 2. Of course, those skilled in the art can set the arrangement of the limiting holes 3 according to the required position of the control panel 100, but the position adjustment precision requirement for the control panel 100 is not high when adjusting the control panel 100.

[0072] Additionally, please refer to Figure 5To ensure the smoothness and correctness of the movement of the limiting member 4, in some embodiments, the locking device of the movable device further includes a guide member 6. The guide member 6 is disposed in one of the first structural member 1 and the second structural member 2 (for example, the guide member 6 is disposed in the second structural member 2). The guide member 6 is slidably connected to the limiting member 4 to slide and limit the limiting member 4 during the process of the limiting member 4 engaging or disengaging with the limiting hole 3. That is, when the driving device drives the limiting member 4 to move closer to or away from the limiting hole 3, the limiting member 4 moves along the direction defined by the guide member 6, thereby ensuring the smooth movement of the limiting member 4 and the correctness of the movement direction of the limiting member 4. In some embodiments, the guide member 6 is provided with a groove, and the limiting member 4 is slidably disposed in the groove, that is, when the limiting member 4 moves, it slides in the groove.

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

[0074] In addition, such as Figure 5 As shown, to facilitate the installation of the guide member 6, in some embodiments, the guide member 6 is provided with a flat surface 61, which is used to bear the installation force when installing the guide member 6. That is, when installing the guide member 6 onto the first structural member 1 or the second structural member 2, the installation of the guide member 6 is achieved by applying an external force to the flat surface 61. For example, if the guide member 6 is threadedly connected to the second structural member 2, then when installing the guide member 6, a rotational force can be applied to the guide member 6 by clamping the flat surface 61, which facilitates the screwing of the guide member 6 and achieves the threaded connection between the guide member 6 and the second structural member 2.

[0075] In addition, to facilitate the installation of the elastic element 5, in some embodiments, the elastic element 5 is disposed between the limiting element 4 and the guide element 6. Further, in some embodiments, the end of the limiting element 4 away from the guide cone portion 41 is provided with a limiting post, the elastic element 5 is a spring, and the spring is sleeved on the outer periphery of the limiting post; the guide element 6 is provided with a limiting groove, and the spring is disposed in the limiting groove.

[0076] In addition, the above embodiments do not limit the specific structure and method of the driving device to separate the limiting member 4 from the limiting hole 3, as long as it can provide driving force to the limiting member 4 so that the limiting member 4 separates 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 structural member 1 and the second structural member 2, which are provided with a limiting member 4 (for example, the electromagnet coil 91 is connected to the second structural member 2). The electromagnet core 92 is connected to the limiting member 4 and is used to provide a driving force to the limiting member 4 to separate it from the limiting hole 3 when the electromagnet coil 91 is energized. That is, this embodiment uses the magnetic attraction of the electromagnet to unlock the movable device 300, and this electromagnet is an energized unlocking electromagnet. When the electromagnet coil 91 is energized, an attractive force is generated between the electromagnet coil 91 and the electromagnet core 92, causing the electromagnet core 92 to attract the electromagnet coil 91. This attractive force drives the electromagnet core to move the limiting member 4 away from the limiting hole 3, separating the limiting member 4 from the limiting hole 3 and unlocking the movable device 300. At this time, the control panel 100 is in an active state and can be adjusted to the desired working position. When the electromagnet coil 91 is de-energized, the attractive force between the electromagnet coil 91 and the electromagnet core 92 disappears, allowing the limiting member 4 to move towards the limiting hole 3 under the action of another driving force of the driving device (such as the elastic force of the aforementioned elastic member) and engage with the limiting hole 3.

[0078] like Figure 5 As shown, in some embodiments, the driving device is a combination of the electromagnet and the elastic element 5. That is, the attraction force of the electromagnet coil 91 and the electromagnet core 92 is used to unlock the movable device 300. During the process of the electromagnet core 92 and the electromagnet coil 91 being attracted, the elastic element 5 is compressed and generates elastic force. When the electromagnet coil 91 is de-energized, the attraction force between the electromagnet coil 91 and the electromagnet core 92 disappears. The elastic force of the elastic element 5 is used to drive the limiting member 4 to move towards the limiting hole 3, so that the limiting member 4 and the limiting hole 3 are engaged and inserted, and the movable device 300 is in a locked state.

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

[0080] In addition, to facilitate the control of the electromagnet coil 91's energization and de-energization, in some embodiments, the locking device of the movable device also includes a control button 10 (e.g., ...). Figure 1As shown, control button 10 is used to control the energization of electromagnet coil 91. That is, control button 10 is connected to electromagnet coil 91 via an electrical connection. When control button 10 is operated, the energization of electromagnet coil 91 can be turned on or off. Therefore, when adjusting the position of control panel 100, the movable device 300 can be unlocked and locked by operating control button 10. For example, in some embodiments, pressing control button 10 energizes electromagnet coil 91; releasing control button 10 de-energizes electromagnet coil 91. Of course, in other embodiments, control button 10 can also have other control methods, which will not be described further here.

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

[0082] In addition to using the magnetic attraction of an electromagnet to drive the limiting member 4 away from the limiting hole 3, another approach can be adopted: In some embodiments, the control panel 100 is provided with a handle, which is connected to the limiting member 4 via a cable. When it is necessary to unlock the movable device 300, the limiting member 4 is pulled away from the limiting hole 3 by operating the handle and using the cable, thereby unlocking the movable device 300. Of course, in other embodiments, a cylinder, an electric push rod, or the like can also be used to move the limiting member 4 away from the limiting hole 3.

[0083] Additionally, it should be noted that the specific number of limiting members 4 is not limited in the above embodiments. There can be one limiting member 4, where, when the movable device 300 is locked, the locking is achieved by the interlocking of one limiting member 4 with one limiting hole 3. Alternatively, there can be at least two limiting members 4, in which case there are at least three limiting holes 3. When the movable device 300 is locked, two or more limiting members 4 are interlocked with their corresponding limiting holes 3 to achieve locking, thus improving the stability and reliability of the movable device 300 during locking.

[0084] Please continue to refer to this. Figure 5In some embodiments, the number of limiting members 4 is at least two, and the locking device also includes a bracket 7. At least two limiting members 4 are connected to the electromagnet core 92 through the bracket 7. That is, when the number of limiting members 4 is at least two, this embodiment adds a bracket 7 so that at least two limiting members 4 are connected together through the bracket 7. This makes it convenient for the driving device to apply a driving force to the bracket 7, causing the limiting members 4 connected to the bracket 7 to move together. For example, the electromagnet core 92 is located on the bracket 7. When the electromagnet coil 91 is energized, an attraction force is generated between the electromagnet coil 91 and the electromagnet core 92, causing the electromagnet core 92 to attract the electromagnet coil 91. This causes the electromagnet core 92 to drive the bracket 7 to move, which in turn causes the bracket 7 to drive the at least two limiting members 4 connected to it to move synchronously, causing the limiting members 4 to disengage 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 members 4 are connected together by one bracket 7. When the number of brackets 7 is at least two, one bracket 7 is connected to at least two limiting members 4, and all the limiting members 4 are grouped and connected by two or more brackets 7.

[0085] In some embodiments, the limiting member 4 is in a clearance fit with the bracket 7 in its radial direction. It is understood that when there are multiple limiting members 4, the difficulty of aligning multiple limiting members 4 simultaneously with their corresponding limiting holes 3 increases. Therefore, it is necessary to have the limiting member 4 in a clearance fit with the bracket 7 in its radial direction to reserve radial movement space for the limiting member 4. It is also understood that the limiting member 4 is relatively fixed to the bracket 7 in its axial direction, or in the direction of movement of the limiting member 4, to achieve synchronous movement between the limiting member 4 and the bracket 7.

[0086] It should be noted that this embodiment does not limit the specific connection method between the limiting member 4 and the bracket 7, as long as the connection between the limiting member 4 and the bracket 7 can be achieved. In some embodiments, the bracket 7 is provided with a mounting hole, the guide cone 41 passes through the mounting hole, and the limiting member 4 is provided with a limiting shoulder on the side near the largest diameter of the guide cone 41. The limiting shoulder is used to abut against one side of the mounting hole, and the other side of the mounting hole is provided with an open retaining ring for engaging with the guide cone 41. That is, by limiting the limiting shoulder and the open retaining ring respectively with the two sides of the mounting hole, the axial limiting of the limiting member 4 is achieved, so that the limiting member 4 is fixed relative to the bracket 7 along its axial direction.

[0087] Furthermore, the specific shape of the bracket 7 is not limited in the above embodiments, as long as the bracket 7 can serve to connect two or more limit members 4. Please refer to... 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 wire harness is connected between them; the bracket 7 has a recess, and the recess forms a clearance space 71 for the wire harness to pass through between the recess and one of the first structural member 1 and the second structural member 2, and at least two limiting members 4 are disposed on both sides of the recess. That is to say, this embodiment, by reasonably designing the shape of the bracket 7, makes the recess of the bracket 7 form a clearance space 71 with the first structural member 1 or the second structural member 2, so that the wire harness can pass through the clearance space 71, which facilitates the layout of the wire harness and makes 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 wire harness to pass through. In some embodiments, the bracket 7 is a U-shaped bracket 7, and each end of the U-shaped bracket 7 is provided with an outwardly extending mounting plate, the limiting member 4 is connected to the mounting plate, and the space between the two opposite straight plates of the U-shaped bracket 7 serves as a recess for the wire harness to pass through.

[0088] Furthermore, the above embodiments do not limit the specific relative positions of the limiting member 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 limiting member 4 connected to the bracket 7 to move as a whole.

[0089] In some embodiments, there are two limiting members 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. That is, in this embodiment, the electromagnet core 92 is located at the central axis of the bracket 7, and the two limiting members 4 are symmetrically arranged about the central axis of the bracket 7. This symmetrical structure makes the force distribution more uniform and reliable, and also makes the structure more stable.

[0090] Additionally, please continue to refer to Figure 5 To prevent the support 7 from directly contacting the first structural member 1 and the second structural member 2 and causing collision impact during the movement of the support 7 and the limiting member 4 together, in some embodiments, buffer members 8 are respectively provided on the surfaces of the support 7 facing the first structural member 1 and the second structural member 2. That is to say, in this embodiment, by providing buffer members 8, direct contact between the support 7 and the first structural member 1 and the second structural member 2 is avoided. The buffer members 8 have a buffering effect, which can reduce impact collision and reduce noise generation. It should be noted that this embodiment does not limit the specific material, shape, and connection method of the buffer members 8 with the support 7. For example, the buffer members 8 include a buffer pad, and the buffer pad is bonded to the support 7.

[0091] As one specific implementation method, such as Figure 6 As shown, Figure 1An exploded view of the moving device and its locking device of the ultrasound diagnostic equipment shown. The first structural component 1 of the moving device 303 is a top plate, and the second structural component 2 is a base plate. The top plate and the base plate are arranged parallel to each other. A guide rail 12 is connected to the top plate, and a slider 13 (as the aforementioned movable part) is connected to the base plate. The slider 13 is slidably connected to the guide rail 12, allowing the top plate to translate relative to the base plate. A buffer limiting part 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 limiting part 11 to avoid a large impact collision. Further, in some embodiments, limiting holes 3 are distributed on the top plate, and limiting members 4 are movably disposed on the base plate along the direction close to or away from the limiting holes 3. For example, a guide member 6 is connected to the base plate, and the limiting member 4 is slidably connected to the guide member 6; that is, the limiting member 4 is movably disposed on the base plate via 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 shell 14 and the lower shell 15 can slide relative to each other. Further, in some embodiments, the upper shell 14 at least surrounds a portion of the lower shell 15 near the upper shell 14, thereby preventing at least some components located between the upper shell 14 and the lower shell 15 from being exposed, thus improving aesthetics and providing protection for the components located between the upper shell 14 and the lower shell 15. Additionally, a turntable connecting block 16 is provided inside the top plate. This turntable connecting block 16 can be detachably connected to the rotating device 302 or the control panel 100, thereby allowing the rotating device 302 to be added or removed between the moving device 303 and the control panel 100 as needed. Furthermore, to facilitate the installation of wiring harnesses, in some embodiments, the wiring harness is located within a cable chain 17, with both ends of the cable 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 are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0093] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0094] The locking device for the movable device and the ultrasound diagnostic equipment provided by the present invention have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make several improvements and modifications to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the protection scope of the present invention.

Claims

1. A locking device for a movable device, characterized in that The activity device (300) comprises a first structural member (1) and a second structural member (2) movably connected with 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), the at least two limiting holes (3) are arranged along the relative movement direction of the first structural member (1) and the second structural member (2), and the locking device comprises: a limiting member (4) provided on the other one of the first structural member (1) and the second structural member (2) and movable in the direction close to the limiting hole (3) to selectively and insertingly mate with the limiting hole (3) so as to lock the first structural member (1) and the second structural member (2), and movable in the direction away from the limiting hole (3) to separate from the limiting hole (3) so as to unlock the first structural member (1) and the second structural member (2); a driving device for providing the limiting member (4) with a driving force for mating insertion and separation with the limiting hole (3).

2. A locking device for a mobility device as defined in claim 1, wherein An end of the limiting member (4) for mating insertion with the limiting hole (3) is provided with a guide taper portion (41).

3. A locking device for a mobility device as defined in claim 2, wherein, When the limiting member (4) mates with the limiting hole (3), the guide taper portion (41) and the limiting hole (3) are in linear contact.

4. A locking device for a mobility device as defined in claim 3, wherein The limiting hole (3) is a straight hole, and when the limiting member (4) mates with the limiting hole (3), the outer periphery of the guide taper portion (41) is in linear contact with the edge portion of the straight hole.

5. A locking device for a mobility device as defined in claim 4, wherein, The edge portion is provided with a rounded corner.

6. The locking device of a mobility device of claim 3, wherein, The relationship between the cone angle 2θ of the guide cone portion (41) and the friction coefficient μ between the guide cone portion (41) and the limiting hole (3) is: .

7. A locking device for a mobility device according to any one of claims 1-6, characterized in that, Further comprising: a guide member (6) provided on the other one of the first structural member (1) and the second structural member (2) and slidably connected with the limiting member (4) to slide and limit the limiting member (4) during the mating insertion or separation of the limiting member (4) and the limiting hole (3).

8. A locking device for a mobility device according to any one of claims 1-6, characterized in that The driving device comprises: an electromagnet coil (91) provided on the other one of the first structural member (1) and the second structural member (2); and an electromagnet core (92) connected with the limiting member (4) and used for providing the limiting member (4) with a driving force for separation from the limiting hole (3) when the electromagnet coil (91) is energized; and / or a resilient member (5) connected between the other one of the first structural member (1) and the second structural member (2) and the limiting member (4) and used for providing the limiting member (4) with a driving force for mating insertion with the limiting hole (3).

9. A locking device for a mobility device as defined in claim 8, wherein, The number of the limiting members (4) is at least two; and the locking device further comprises: a support (7) through which the at least two limiting members (4) are connected with the electromagnet core (92).

10. A locking device for a mobility device as defined in claim 9, wherein, The limiting member (4) is gap-fitted with the support (7) in the radial direction.

11. A locking device for a mobility device as defined in claim 9, wherein, The first structural member (1) and the second structural member (2) are in sliding connection and a wire harness is connected between the two; the bracket (7) has a recess, the recess and the one of the first structural member (1) and the second structural member (2) form an avoiding space (71) for the wire harness to pass through, and at least two limiters (4) are arranged on both sides of the recess.

12. A locking device for a mobility device as defined in claim 11, wherein, The number of the limiters (4) is two, the two limiters (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 a mobility device of claim 9, wherein, The surface of the bracket (7) towards the first structural member (1) and / or the second structural member (2) is provided with a buffer (8).

14. An ultrasonic diagnostic apparatus, characterized by comprising: The locking device of the activity device includes a control panel (100), a device body (200), an activity device (300), and the activity device according to any one of claims 1-13, the control panel (100) and the device body (200) are connected through the activity device (300).

15. The ultrasonic diagnostic apparatus of claim 14 wherein, The activity device (300) includes: A moving device (303) including the first structural member (1) and the second structural member (2) in sliding connection with the first structural member (1), and being locked or unlocked through the locking device of the activity device.

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