A flexible plug device and a medical device

Abstract

This case provides a flexible latch device. Its slider can slide along the guide rail, the elastic pin can slide relative to the slider and can be in linkage with the slider, and the elastic pin also cooperates with the pin hole of the second component. The locking mechanism can lock the slider at the first position to achieve the locked state or the pre-locked state. In addition, the locking mechanism can also position the slider at the second position to reset the elastic pin. During operation, the slider can be pushed to the locking position, and the slider pushes the elastic pin to produce a linkage effect. If the elastic pin is aligned with the pin hole, the elastic pin is pushed by the slider and inserted into the pin hole to achieve the locked state. If the elastic pin is not aligned with the pin hole, the elastic pin is blocked, and the slider generates a pre-tightening force on the elastic pin to achieve the pre-locked state. Therefore, the flexible latch device can adjust the relative position of the kinematic pair in the pre-locked state, enabling the elastic pin to smoothly and automatically insert into the pin hole to simplify the operation. This case also provides a medical device with the above flexible latch device, which has the same beneficial effects.

Description

Technical Field

[0001] The present invention belongs to the technical field of plug devices, and particularly relates to a flexible plug device and a medical device. Background Art

[0002] In the prior art, during the transportation of medical devices, the locking of moving joints is generally manually operated by an operator. For example, when the display arm of an ultrasound trolley is in packaging and transportation or moving between departments, the rotating joint of the display arm needs to be fixed to prevent the arm from moving unexpectedly during transportation, causing damage to the display by collision or harm to the human body.

[0003] Currently, generally self-locking plug devices or set screws and other fasteners are used, and both of these devices adopt a rigid connection method. For the plug device, the plug hole on the moving part needs to be rotated to align with the plug before it can be inserted and locked. If not aligned, the locking cannot be completed. For the set screw, the flat opening on the moving part needs to be directly opposite to the position of the set screw. If not aligned, an effective locking force cannot be achieved.

[0004] Both of the above two devices need to be aligned to lock, and the plug and the plug hole are inside the housing, and the operator cannot see their relative positions. The operator needs to take into account the states of the moving part and the locking device, and sometimes needs to repeatedly adjust the position of the moving part, which is inconvenient to operate.

[0005] Therefore, how to design a plug device that can be pre-locked and can adjust the relative position of the kinematic pair in the pre-locked state so that the plug can automatically insert into the pin hole is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0006] The purpose of the present invention is to provide a flexible plug device and a medical device, which can achieve pre-locking and can adjust the relative position of the kinematic pair in the pre-locked state, so that the plug can smoothly and automatically insert into the pin hole, which can bring great convenience to the operator.

[0007] To solve the above technical problems, the present invention provides a flexible plug device, including:

[0008] A guide rail for being installed on a first component;

[0009] A slider installed on the guide rail and capable of sliding along the guide rail;

[0010] An elastic pin connected to the slider and capable of sliding relative to the slider, and capable of telescoping along the guide rail through the linkage action of the slider; the elastic pin is used for cooperating with the pin hole of a second component;

[0011] The locking mechanism is installed on the guide rail and cooperates with the slider. When the slider slides along the guide rail to the first position, the slider is locked at the first position, so that the slider pushes the elastic pin to extend out of the guide rail and insert into the pin hole to achieve the locked state. And when the slider is blocked while extending along the guide rail, due to the elastic action of the elastic pin, a pre-tightening force is generated on the elastic pin by the slider to achieve the pre-locked state. The locking mechanism is also used to position the slider at the second position when the slider slides along the guide rail to the second position, so that the elastic pin is reset.

[0012] Optionally, the elastic pin includes a plug pin and a first spring. Two ends of the first spring are respectively connected to the plug pin and the slider, and the first end of the plug pin is used to insert into the pin hole of the second component.

[0013] Optionally, the second end of the plug pin penetrates through the slider, and a limiting member for preventing the plug pin from detaching from the slider is provided; the plug pin can slide relative to the slider.

[0014] Optionally, the plug pin is provided with a step, the first spring is sleeved outside the plug pin, the first end of the first spring abuts against the step, and the second end of the first spring abuts against the slider.

[0015] Optionally, the slider is provided with a limiting recess, and the second end of the first spring abuts against the limiting recess.

[0016] Optionally, the elastic pin includes a first pin body and a second pin body connected by an elastic mechanism, and the first pin body is used to insert into the pin hole of the second component (2), and the second pin body is connected to the slider.

[0017] Optionally, the first pin body and the second pin body are connected by sleeving of tube shafts.

[0018] Optionally, an elastic member is further included and is arranged between the guide rail and the slider along the extending direction of the plug pin.

[0019] Optionally, the elastic member is a second spring, and two ends of the second spring respectively abut against the guide rail and the slider.

[0020] Optionally, a button for pushing the slider is further included, and the button is arranged at the outer end of the slider.

[0021] Optionally, the guide rail is provided with a port for the button to pass through, and a clamping portion for preventing the button from detaching from the guide rail is provided at the port.

[0022] Optionally, the locking mechanism includes a swing rod hinged to the guide rail. A protrusion is provided on the swing rod, and a track groove matching with the protrusion is arranged on the slider. The protrusion is slidably connected to the track groove.

[0023] The track groove includes a self-locking position and a stop position. When the slider slides from the second position to the first position along the guide rail, the protrusion slides from the stop position to the self-locking position, so as to lock the slider at the first position. When the slider slides from the first position to the second position along the guide rail, the protrusion slides from the self-locking position to the stop position, so as to position the slider at the second position.

[0024] Optionally, the track groove includes a forward path and a return path, and a self-locking channel connecting the forward path and the return path. The self-locking position is arranged on the self-locking channel.

[0025] The stop position includes the starting end position of the forward path and the terminating end position of the return path.

[0026] When the slider slides from the second position to the first position along the guide rail, the protrusion starts from the starting end position of the forward path and slides along the forward path and the self-locking channel to the self-locking position.

[0027] When the slider slides from the first position to the second position along the guide rail, the protrusion starts from the self-locking position and slides along the self-locking channel and the return path to the terminating end position of the return path.

[0028] Optionally, the slider is pushed by an external force to make the protrusion slide from the starting end position of the forward path to the terminating end position of the forward path, or slide from the self-locking position along the self-locking channel to the starting end position of the return path.

[0029] The slider makes the protrusion slide from the terminating end position of the forward path along the self-locking channel to the self-locking position, or slide from the starting end position of the return path to the terminating end position of the return path under the action of the elastic member.

[0030] Optionally, a straight line perpendicular to the extending direction of the slider is used as a reference line. Both the starting end position of the forward path and the terminating end position of the return path are located on the reference line.

[0031] Optionally, the starting end position of the forward path and the terminating end position of the return path are the same end position.

[0032] Optionally, the terminating end position of the forward path and the starting end position of the return path are respectively constituted by limiting concave positions away from the reference line.

[0033] Optionally, the self-locking channel includes a groove position, and the groove position constitutes the self-locking position, and the self-locking position is closer to the reference line than both the termination end position of the process path and the starting end position of the return path.

[0034] Optionally, on both sides of the self-locking position are a first side wall close to the process path and a second side wall close to the return path. The first side wall is opposite to the termination end position of the process path, and the second side wall and the starting end position of the return path are offset from each other in the extending direction of the reference line.

[0035] Optionally, a first guiding inclined surface for guiding the protrusion to the termination end position of the process path is provided on the process path; a second guiding inclined surface for guiding the protrusion to the termination end position of the return path is provided on the self-locking channel.

[0036] Optionally, the locking position mechanism includes a button for pushing the slider, and the button is threadedly connected to the guide rail.

[0037] The present invention further provides a medical device, which is characterized by comprising a first member, a second member and the above-mentioned flexible plug device. The second member is movable relative to the first member. The flexible plug device is installed on the first member, and the second member is provided with a pin hole that cooperates with the elastic pin of the flexible plug device.

[0038] Optionally, the medical device is an ultrasonic diagnostic device; wherein, the first member is a mounting base, and the second member is a rotating arm.

[0039] This case provides a flexible latch device, including a slider, an elastic pin, and a locking mechanism. Among them, the slider can slide along the guide rail, the elastic pin can slide relative to the slider and can be linked with the slider, and the elastic pin also cooperates with the pin hole of the second component. The locking mechanism can lock the slider at the first position, and at the same time, through the linkage effect of the slider on the elastic pin, the locked state or the pre-locked state is achieved. In addition, the locking mechanism can also position the slider at the second position to reset the elastic pin. Then, during operation, the slider can be pushed to the locking position (i.e., the first position), and the slider will push the elastic pin to produce a linkage effect. If the elastic pin is aligned with the pin hole, the elastic pin is pushed by the slider and inserted into the pin hole of the second component, directly locking the kinematic pair composed of the first component and the second component, achieving the locked state. If the elastic pin is not aligned with the pin hole, at this time the elastic pin is blocked, and the slider generates a pre-tightening force on the elastic pin, achieving the pre-locked state. After that, when moving the above kinematic pair, when the kinematic pair reaches the position where the elastic pin is aligned with the pin hole, the elastic pin will automatically insert into the pin hole under the action of the above pre-tightening force, thereby locking the kinematic pair. The use of the elastic pin changes the rigid latch into a flexible latch, enabling the elastic pin to adapt to the state of the pin hole and automatically realizing the pre-locked or locked state, and can also be unlocked at any time. Therefore, the above flexible latch device can adjust the relative position of the kinematic pair in the pre-locked state, enabling the elastic pin to smoothly and automatically insert into the pin hole, simplifying the operation and bringing great convenience to the operator. This solution also provides a medical device with the above flexible latch device. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0041] Figure 1 Structural schematic diagram of the flexible latch device provided by the present invention connected to the first component;

[0042] Figure 2 Axial sectional view of the flexible latch device provided by the present invention;

[0043] Figure 3 Structural schematic diagram of the flexible latch device provided by the present invention;

[0044] Figure 4 Structural schematic diagram of the track groove on the slider provided by the present invention;

[0045] Figure 5 Trajectory diagram of the swing rod in the track groove provided by the present invention;

[0046] Figure 6Oblique view of the flexible pin device provided by the present invention;

[0047] Figure 7 Schematic structural diagram of the connection between the flexible pin device provided by the present invention and a kinematic pair;

[0048] Figure 8 is Figure 7 Partial enlarged view of

[0049] In the above figure:

[0050] 1 - First component, 2 - Second component, 3 - Guide rail, 4 - Slide block, 5 - Pin, 6 - First spring, 7 - Second spring, 8 - Swing rod, 9 - Track groove, 10 - Button, 11 - Positioning part, 12 - Ear plate, 13, First side wall, 14, Second side wall, 15, First guiding inclined surface, 16, Second guiding inclined surface;

[0051] a - Stop position; b - Termination end position of the process path; d - Starting end position of the return path; c - Self - locking position. Specific embodiments

[0052] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention, and should not be construed as a limitation to the present invention.

[0053] In the description of the present invention, it should be understood that for the orientation description, such as up, down, front, back, left, right, etc., the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it should not be construed as a limitation to the present invention.

[0054] In the description of the present invention, the meaning of "a plurality of" is more than two. If the first and second are described, it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0055] In the description of the present invention, unless otherwise clearly defined, words such as "set", "installed", "connected", etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meaning of the above words in the present invention in combination with the specific content of the technical solution.

[0056] The core of the present invention is to provide an electromagnet control device and a medical device, which can be unaffected by the power-off of the electromagnet, can keep the release switch of the air spring open for a long time, and enable the operator to have sufficient time to adjust the position of the supported device.

[0057] In order to enable those skilled in the art to better understand the technical solutions provided by the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0058] See Figures 1-3 , Figures 7-8 , a flexible latch device provided by the present invention includes a guide rail 3, a slider 4 and a locking mechanism; the guide rail 3 is used to be installed on the first member 1; the slider 4 is installed on the guide rail 3 and can slide along the guide rail 3; an elastic pin is connected to the slider 4 and can slide relative to the slider 4, and can extend and retract along the guide rail 3 through the linkage action of the slider 4; the elastic pin is used to cooperate with the pin hole of the second member 2; the locking mechanism is installed on the guide rail 3 and cooperates with the slider 4 to lock the slider 4 at the first position when the slider 4 slides along the guide rail 3 to the first position, so that the slider 4 pushes the elastic pin to extend out of the guide rail 3 and insert into the pin hole to achieve the locked state, and when the slider 4 is blocked when extending along the guide rail 3, through the elastic action of the elastic pin, the slider 4 generates a pre-tightening force on the elastic pin to achieve the pre-locked state; the locking mechanism is also used to position the slider 4 at the second position when the slider 4 slides along the guide rail 3 to the second position, so that the elastic pin is reset.

[0059] During operation, the operator can push the slider 4 to slide to the locking position (i.e., the first position), and the slider 4 will drive the elastic pin to act in a linkage manner; if the elastic pin is aligned with the pin hole, the elastic pin is pushed by the slider 4 and inserted into the pin hole of the second member 2 to directly lock the kinematic pair formed by the first member 1 and the second member 2 to achieve the locked state; if the elastic pin is not aligned with the pin hole, at this time the elastic pin is blocked, and the slider 4 generates a pre-tightening force on the elastic pin to achieve the pre-locked state. Thereafter, when moving the above kinematic pair to make a relative movement between the first member 1 and the second member 2, when the kinematic pair reaches the position where the elastic pin is aligned with the pin hole, the elastic pin will automatically insert into the pin hole under the action of the above pre-tightening force, thereby locking the kinematic pair. The use of the elastic pin changes the rigid latch into a flexible latch, enables the elastic pin to adapt to the state of the pin hole, automatically realizes the pre-locked or locked state, and can also be unlocked at any time. Therefore, the above flexible latch device can adjust the relative position of the kinematic pair in the above pre-locked state, so that the elastic pin can smoothly and automatically insert into the pin hole. The operator no longer needs to wait for the latch to be aligned with the pin hole and then press or push the latch to lock the kinematic pair, which simplifies the operation and brings great convenience to the operator.

[0060] In a specific embodiment, the elastic pin includes a plug pin 5 and a first spring 6. Two ends of the first spring 6 are respectively connected to the plug pin 5 and the slider 4. The first end of the plug pin 5 is used for inserting into the pin hole of the second member 2. As Figure 2 shown, a step is provided at the front end of the plug pin 5, and the end of the slider 4 is provided as a limiting recess. The first end of the first spring 6 abuts against the step of the plug pin 5, and the second end of the first spring 6 abuts against the bottom of the limiting recess of the slider 4, so as to provide the elastic force for flexible connection. And in the above-mentioned pre-locking state, the slider 4 can generate a pre-tightening force on the plug pin 5 through the first spring 6.

[0061] Furthermore, the second end of the plug pin 5 penetrates through the slider 4, and a limiting member for preventing the plug pin 5 from detaching from the slider 4 is provided. In addition, relative sliding can be achieved between the plug pin 5 and the slider 4. It can be understood that when relative sliding occurs between the plug pin 5 and the slider 4, this limiting member can prevent the slider 4 from detaching from the second end of the plug pin 5. Specifically, this limiting member can be a bolt, and the bolt is connected to the second end of the plug pin 5. The radius of the nut of this bolt is greater than the radius of the plug pin 5, so as to play a limiting role.

[0062] In the first case, if there is no blockage for the plug pin 5, that is, the plug pin 5 is exactly aligned with the pin hole of the second member 2, then by pushing the slider 4 to slide to the first position, the slider 4 can be made to push the plug pin 5 to move and insert into the pin hole, and further lock the kinematic pair composed of the above-mentioned first member 1 and the second member 2, so as to achieve the above-mentioned locked state. At this time, the first spring 6 has no action. In the second case, if the plug pin 5 is blocked, that is, the plug pin 5 is not aligned with the pin hole, the plug pin 5 will be blocked by the second member 2 and cannot move. Then, during the process of the slider 4 sliding to the above-mentioned first position, the first spring 6 will be compressed, so that the first spring 6 stores energy, and the slider 4 generates a pre-tightening force on the plug pin 5. At this time, the pre-locking state is achieved. After that, the operator can no longer operate the plug pin device, but only needs to adjust the relative movement of the two members. Once the movement reaches the position where the pin hole is aligned with the plug pin 5, the plug pin 5 will be automatically inserted into the pin hole under the push of the first spring 6, so as to lock the kinematic pair composed of the two members and achieve the locked state. After the plug pin 5 is inserted into the pin hole, the first spring 6 will reset.

[0063] In another specific embodiment (not shown in the figure), the elastic pin includes a first pin body and a second pin body connected by an elastic mechanism, and the first pin body is used for inserting into the pin hole of the second member 2, and the second pin body is connected to the slider 4. The elastic pin can also adopt a connection method in which the first pin body and the second pin body are sleeved with a tube shaft. Among them, the elastic mechanism can adopt a spring and other mechanisms.

[0064] This embodiment further includes an elastic member disposed along the extension direction of the elastic pin, and this elastic member is arranged between the guide rail 3 and the slider 4. Specifically, this elastic member is the second spring 7, and both ends of the second spring 7 are respectively connected to the guide rail 3 and the slider 4, which can limit the movement of the slider 4 in the direction of the first end of the elastic pin. On the one hand, the second spring 7 provides a pre-tightening force for the slider 4 during locking, and on the other hand, its function is to push the slider 4 together with the elastic pin to reset during unlocking.

[0065] Furthermore, this solution also includes a button 10 for pushing the slider 4. The button 10 is arranged at one end of the slider 4 away from the elastic pin, that is, the button 10 is arranged at the outer end of the slider 4, and is used to push the slider 4 to move in the locking direction. The button 10 can be directly connected to the slider 4 or be an integral structure with the slider 4. Of course, the button 10 can also be in contact with one end of the slider 4 to push the slider 4 to slide along the inner cavity of the guide rail 3. To prevent the button 10 from falling off, the edge where the button 10 is connected to the slider 4 is set as a flanging structure. At the same time, the guide rail 3 is provided with a port for the button 10 to pass through, and a clamping part 11 is provided at this port. One end face of the above-mentioned flanging abuts against the slider 4, and when the slider 4 slides backward, the clamping part 11 can abut against the other end face of the flanging of the button 10.

[0066] In a specific embodiment, the locking mechanism includes a swing rod 8 hinged to the guide rail 3. A protrusion is provided on the swing rod 8, and a track groove 9 cooperating with the protrusion is provided on the slider 4. The protrusion is slidably connected to the track groove 9. The track groove 9 includes a self-locking position c and a stop position a; when the slider 4 slides from the second position to the first position along the guide rail 3, the protrusion slides from the stop position a to the self-locking position c, realizing locking the slider 4 at the first position; when the slider 4 slides from the first position to the second position along the guide rail 3, the protrusion slides from the self-locking position c to the stop position a, realizing positioning the slider 4 at the second position.

[0067] In the above mechanism, the button 10 is used to provide a driving force, the slider 4 and the swing rod 8 are respectively used for guiding and locking, and the second spring 7 is used for resetting. The second spring 7, the slider 4, the swing rod 8, the button 10 and the guide rail 3 are combined to form a ball catch device, which can realize pressing for locking and pressing again for unlocking; the first spring 6, the plug pin 5, the slider 4 and the guide rail 3 are combined to form an overrunning device, which can realize the stroke override of the plug pin 5 on the slider 4, and further can realize pressing for pre-locking, making the operation more flexible.

[0068] Among them, in combination with Figure 4 and Figure 5 as shown, the track groove 9 includes a forward path and a return path, as well as a self-locking channel connecting the forward path and the return path. The self-locking position c is arranged on the self-locking channel; the stop position a includes the starting end position of the forward path and the terminating end position of the return path; when the slider 4 slides along the guide rail 3 from the second position to the first position, the protrusion moves from the starting end position of the forward path (that is Figure 5The line stop position a) therein starts to slide along the process path and the self-locking channel to the self-locking position c; when the slider 4 slides along the guide rail from the first position to the second position, the protrusion starts to slide along the self-locking channel and the return path to the end position of the return path (similarly corresponding to Figure 5 the line stop position a) therein. More specifically, the slider 4 is pushed by an external force to make the protrusion slide from the starting end position of the process path to the ending end position b of the process path, or slide from the self-locking position c along the self-locking channel to the starting end position d of the return path; the slider 4 makes the protrusion slide from the ending end position b of the process path along the self-locking channel to the self-locking position c, or slide from the starting end position d of the return path to the ending end position of the return path through the action of the above elastic member.

[0069] It should be noted that a straight line perpendicular to the extension direction of the slider 4 is used as the reference line L1, and the starting end position of the process path and the ending end position of the return path are both located on the reference line L1. That is to say, the starting end position of the process path and the ending end position of the return path may not be the same end position, but they need to be located on the reference line L1; preferably, the starting end position of the process path and the ending end position of the return path are the same end position, that is, the line stop position a is only set to one.

[0070] Furthermore, in order to enable the protrusion of the swing rod 8 to be locked at the self-locking position c, the above self-locking channel includes a groove position, and the groove position constitutes the self-locking position c. The self-locking position c is closer to the reference line than both the ending end position b of the process path and the starting end position d of the return path. Thus, when the protrusion of the swing rod 8 slides to the self-locking position c, without other external forces, it will always remain in the self-locking position c and will not slide out, thereby being able to lock the slider 4 at the first position. Preferably, the two sides of the self-locking position c are the first side wall 13 close to the process path and the second side wall 14 close to the return path. Then, in order to enable the protrusion of the swing rod 8 to slide into the above self-locking position c more smoothly from the process path, and also to enable the protrusion to slide into the return path more smoothly from the self-locking position c, the first side wall 13 can be opposite to the ending end position b of the process path, and the second side wall 14 and the starting end position d of the return path are staggered with each other in the extension direction of the above reference line. In addition, a first guiding inclined surface 15 for guiding the protrusion to the ending end position b of the process path is provided on the process path; a second guiding inclined surface 16 for guiding the protrusion to the ending end position d of the return path is provided on the self-locking channel, so that the above protrusion can slide into the ending end position b of the process path and the starting end position d of the return path more smoothly.

[0071] When the above-mentioned locking mechanism is used in cooperation with the slider 4, the slider 4 can be pushed at any position, so that the slider 4 can be directly pressed during operation regardless of the relative movement position of the above-mentioned kinematic pair. When the slider 4 is pressed for the first time, if the bolt 5 is aligned with the pin hole, the kinematic pair is directly locked; if the bolt 5 is not aligned with the pin hole and is in a pre-locked state at this time, then the kinematic pair is moved again to make the kinematic pair reach the position where the bolt 5 is aligned with the pin hole, and the bolt 5 will automatically insert into the pin hole, and the kinematic pair can be locked.

[0072] When the slider 4 is in the pressed state, regardless of whether the kinematic pair is locked or not, pressing the slider 4 for the second time can release the above-mentioned locked / pre-locked state. That is to say, the operation of pressing the slider 4 is independent of the position of the kinematic pair and the locked or pre-locked state of the kinematic pair; that is, pressing the slider 4 for the first time realizes locking / pre-locking; pressing the slider 4 for the second time realizes unlocking / pre-unlocking, which simplifies the operation.

[0073] Combined with Figures 3-5 As shown, the locking and unlocking action processes are as follows. In the initial state of the device, the button 10 is in the popped-up state, the protrusion on the swing rod 8 is at the starting end position (i.e., the end position a) of the process path, and the slider is in the first position and maintains a steady state. After pressing the button 10 for the first time (release after pressing in place), the slider 4 moves forward, and the swing rod 8 swings accordingly. The movement trajectory of the protrusion on the swing rod 8 in the track groove 9 in the slider 4 is the end position a (corresponding to the starting end position of the process path) → the end position b of the process path → the self-locking position c. After the protrusion on the swing rod 8 reaches the self-locking position c of the track groove, the slider 4 slides to the second position and maintains a self-locking steady state. The slider 4 moves forward a certain distance from the second position to the first position, and this distance will compress the second spring 7, and the second spring 7 stores energy for resetting; in addition, the forward movement of the slider 4 will also simultaneously push the elastic pin part, and the slider 4 pushes the bolt 5 through the first spring 6, so that the bolt 5 has a tendency to move forward. If there is no obstruction in front of the bolt 5, that is, when the bolt 5 is exactly aligned with the pin hole of the second component 2, the bolt 5 will move forward and insert into the pin hole, locking the kinematic pair formed by the first component 1 and the second component 2, and realizing the locked state. If there is an obstruction in front of the bolt 5, that is, the bolt 5 is not aligned with the pin hole of the second component 2, the bolt 5 will be blocked by the second component 2 and cannot move. At this time, the slider 4 will compress the first spring 6, so that the first spring 6 stores energy, realizing the pre-locked state. After that, the first component 1 or the second component 2 can be operated separately to make the first component 1 and the second component 2 perform relative movement. Once the movement reaches the position where the pin hole and the bolt are aligned, the bolt will be automatically inserted into the pin hole under the push of the first spring 6, locking the above-mentioned kinematic pair. After the bolt 5 is inserted into the pin hole, the first spring 6 will reset.

[0074] After the second press of button 10 (release after pressing in place), slider 4 first moves forward, and then under the action of the second spring 7, moves backward. The swing rod 8 swings accordingly. The movement track of the protrusion on the swing rod 8 in the track groove 9 in the slider 4 is the self-locking position c → the starting position d of the return path → the stop position a (corresponding to the end position of the return path). After the protrusion on the swing rod 8 reaches the stop position a of the track groove 9, the slider 4 returns from the above-mentioned first position to the second position and moves backward a certain distance, thereby realizing the reset of the elastic pin. Specifically, when the slider 4 moves backward, the slider 4 will directly pull the latch 5 through the above-mentioned limiting member, causing the latch 5 to move backward. If the latch 5 has been inserted into the pin hole before, the first spring 6 is in the reset state, and the latch moves backward, and the first spring 6 has no action. If the latch 5 has not been inserted into the pin hole before, the first spring 6 is in the compressed state, and the backward movement of the latch will reset the first spring 6. In short, when the button 10 of the slider 4 is pressed again, unlocking can be achieved in both the locked state and the pre-locked state.

[0075] As described above, the above-mentioned locking mechanism can be a mechanism with a complex structure composed of several components cooperatively connected and having a locking function. Of course, it can also be a simple locking member.

[0076] Regarding the locking mechanism, in the second specific embodiment, the locking mechanism can include a button for pushing the slider 4, and the button is threadedly connected to the guide rail 3. Specifically, an external threaded hole is provided on the button, and an internal thread matching the external thread of the button is provided in the accommodating cavity of the guide rail 3. The end face of the button abuts against the slider 4. The button is screwed into the guide rail to push the slider 4 to the locking position (i.e., the first position), and the button is screwed out to a proper position and no longer threadedly connected to the guide rail 3. At this time, the slider 4 can return to the unlocking position (i.e., the second position) under the push of the return spring (such as the second spring 7). The other structures in this embodiment except the locking mechanism can be the same as those in the above embodiment, and will not be elaborated here.

[0077] In addition, on the above basis, combined with Figures 6-8 As shown, the present application also discloses a medical device, including a first member 1, a second member 2 and the above-mentioned flexible latch device. The second member 2 can move relative to the first member 1. The flexible latch device is installed on the first member 1, and the second member 2 is provided with a pin hole that cooperates with the elastic pin of the flexible latch device.

[0078] Among them, an ear plate for connecting the first member 1 can be provided on the guide rail 3, and the ear plate can be connected to the first member 1 through bolts. Specifically, the above-mentioned medical device can be an ultrasonic diagnostic device; among them, the first member 1 can be a mounting seat on the main chassis, and the second member 2 can be a rotating arm. The first member 1 and the second member 2 form a kinematic pair, so that the above-mentioned flexible latch device can limit the rotation between the first member 1 and the second member 2.

[0079] The medical device with the above flexible latch device also has all the above technical effects, which will not be elaborated one by one here.

[0080] In this specification, the various embodiments are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other.

[0081] In this article, specific examples are used to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A flexible bolt device, characterized in that, Comprising: A guide rail (3) for being mounted on a first member (1); A slider (4) mounted on the guide rail (3) and slidable along the guide rail (3); An elastic pin connected to the slider (4) and relatively slidable with respect to the slider (4), and telescopic along the guide rail (3) through the linkage action of the slider (4); the elastic pin is used for mating with a pin hole of a second member (2); A locking mechanism mounted on the guide rail (3) and cooperating with the slider (4), for locking the slider (4) at a first position when the slider (4) slides along the guide rail (3) to the first position, so that the slider (4) pushes the elastic pin to extend out of the guide rail (3) and insert into the pin hole to achieve a locked state, and when the slider (4) is blocked when extending along the guide rail (3), through the elastic action of the elastic pin, a pre-tightening force is generated on the elastic pin by the slider (4) to achieve a pre-locked state; the locking mechanism is further used for positioning the slider (4) at a second position when the slider (4) slides along the guide rail (3) to the second position, so that the elastic pin is reset; It further includes a button (10) for pushing the slider (4), the button (10) is arranged at an outer end of the slider (4), and an edge where the button (10) is connected to the slider (4) is provided with a flanging structure; alternatively, the locking mechanism includes a toggle button for pushing the slider (4), the toggle button is threadedly connected to the guide rail (3), and an end face of the toggle button is used for abutting against the slider (4); The locking mechanism includes a swing rod (8) hinged to the guide rail (3), a protrusion is provided on the swing rod (8), and a track groove (9) cooperating with the protrusion is provided on the slider (4), and the protrusion is slidably connected to the track groove (9); The track groove (9) includes a self-locking position (c) and a stop position; when the slider (4) slides from the second position along the guide rail (3) to the first position, the protrusion slides from the stop position to the self-locking position (c) to lock the slider (4) at the first position; when the slider (4) slides from the first position along the guide rail (3) to the second position, the protrusion slides from the self-locking position (c) to the stop position to position the slider (4) at the second position.

2. The flexible plug device according to claim 1, wherein The elastic pin includes a plug pin (5) and a first spring (6), two ends of the first spring (6) are respectively connected to the plug pin (5) and the slider (4), and a first end of the plug pin (5) is used for inserting into the pin hole of the second member (2).

3. The flexible plug device according to claim 2, characterized in that, A second end of the plug pin (5) penetrates through the slider (4), and a limiting member for preventing the plug pin (5) from detaching from the slider (4) is provided; the plug pin (5) is relatively slidable with respect to the slider (4).

4. The flexible plug device according to claim 2, wherein, The plug pin (5) is provided with a step, the first spring (6) is sleeved outside the plug pin (5), a first end of the first spring (6) abuts against the step, and a second end of the first spring (6) abuts against the slider (4).

5. The flexible latch device according to claim 4, wherein, The slider (4) is provided with a limiting recess, and the second end of the first spring (6) abuts against the limiting recess.

6. The flexible plug device according to claim 1, characterized in that The elastic pin includes a first pin body and a second pin body connected by an elastic mechanism, and the first pin body is used for inserting into the pin hole of the second component (2), and the second pin body is connected to the slider.

7. The flexible plug device according to claim 6, wherein, The first pin body and the second pin body are sleeved and connected in a tube axis manner.

8. The flexible plug device according to any one of claims 1-7, characterized in that, It further includes an elastic member arranged along the extending direction of the elastic pin, and the elastic member is arranged between the guide rail (3) and the slider (4).

9. The flexible plug device according to claim 8, wherein, The elastic member is a second spring (7), and the two ends of the second spring (7) respectively abut against the guide rail (3) and the slider (4).

10. The flexible plug device according to claim 1, characterized in that, The guide rail (3) is provided with a port for the button (10) to pass through, and a clamping position portion (11) for preventing the button (10) from detaching from the guide rail (3) is arranged at the port.

11. The flexible latch device according to claim 8, characterized in that, The track groove (9) includes a process path, a return path, and a self-locking channel connecting the process path and the return path, and the self-locking position (c) is arranged on the self-locking channel; The stop positions include the starting end position of the process path and the terminating end position of the return path; When the slider (4) slides along the guide rail (3) from the second position to the first position, the protrusion slides from the starting end position of the process path along the process path and the self-locking channel to the self-locking position (c); When the slider (4) slides along the guide rail from the first position to the second position, the protrusion slides from the self-locking position (c) along the self-locking channel and the return path to the terminating end position of the return path.

12. The flexible plug device according to claim 11, wherein, The slider (4) is pushed by an external force to make the protrusion slide from the starting end position of the process path to the terminating end position (b) of the process path, or slide from the self-locking position (c) along the self-locking channel to the starting end position (d) of the return path; The slider (4) makes the protrusion slide from the terminating end position (b) of the process path along the self-locking channel to the self-locking position (c), or slide from the starting end position (d) of the return path to the terminating end position of the return path under the action of the elastic member.

13. The flexible latch device according to claim 11, characterized in that, Taking a straight line perpendicular to the extending direction of the slider (4) as a reference line, both the starting end position of the process path and the terminating end position of the return path are located on the reference line.

14. The flexible plug device according to claim 13, wherein The starting end position of the process path and the terminating end position of the return path are the same end position.

15. The flexible plug device according to claim 13, characterized in that, The terminating end position (b) of the process path and the starting end position (d) of the return path are respectively formed by limiting concave positions far from the reference line.

16. The flexible plug device according to claim 13, wherein, The self-locking channel includes a groove position, and the groove position forms the self-locking position (c), and the self-locking position (c) is closer to the reference line than both the terminating end position (b) of the process path and the starting end position (d) of the return path.

17. The flexible plug device according to claim 16, wherein, On both sides of the self-locking position (c) are a first side wall close to the process path and a second side wall close to the return path. The first side wall is opposite to the termination position (b) of the process path, and the second side wall and the starting position (d) of the return path are staggered from each other in the extending direction of the reference line.

18. The flexible plug device according to claim 16, characterized in that, A first guiding inclined surface for guiding the protrusion to the termination position (b) of the process path is provided on the process path; a second guiding inclined surface for guiding the protrusion to the termination position (d) of the return path is provided on the self-locking channel.

19. A medical device, characterized in that, It includes a first member (1), a second member (2), and a flexible latch device according to any one of claims 1-18. The second member (2) is movable relative to the first member (1). The flexible latch device is installed on the first member (1), and the second member (2) is provided with a pin hole that cooperates with the elastic pin of the flexible latch device.

20. The medical device according to claim 19, wherein, The medical device is an ultrasonic diagnostic device; wherein, the first member (1) is a mounting base, and the second member (2) is a rotating arm.

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