Drawing device and medical equipment

Abstract

The utility model relates to a drawing device and medical equipment, the drawing device comprises a support, a drawing structure and a driving assembly, the drawing structure is used for accommodating a sample, the drawing structure is slidably arranged on the support to be opened and closed, and the drawing structure is provided with a first matching part; the driving assembly is arranged on the bracket, is used for driving the drawing structure to slide and is provided with a second matching part; wherein one of the first matching part and the second matching part is provided with a limiting groove, and the other one of the first matching part and the second matching part comprises a base and a connecting piece; the connecting piece is elastically and telescopically arranged on the base so as to extend into the limiting groove to form transmission fit and retract to be separated from the limiting groove to be separated from the transmission fit. The connecting piece extends into the limiting groove, so that the drawing structure and the driving assembly are in transmission fit, and automatic opening and closing are achieved. And the connecting piece is controlled to retract to be separated from the limiting groove, so that the first matching part and the second matching part are separated from the transmission matching relation and can be manually opened and closed. The medical equipment comprises the drawing device, and manual opening and closing and automatic opening and closing can be both considered.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a pulling device and medical equipment. Background Art

[0002] The sample rack containing the sample tubes is placed in an instrument or device for transportation. The relevant structures of the instrument or device are either fully automatic or fully manual, and it is impossible to achieve automatic and manual integration. The convenience and intelligence of operation need to be improved. Utility Model Content

[0003] Based on this, it is necessary to provide a pulling device and medical equipment to address the problem that the relevant structure of the instrument or equipment cannot take into account both automatic opening and manual opening and closing when transporting the sample rack.

[0004] On the one hand, the present application provides a pulling-out device, which includes a bracket, a pulling-out structure and a driving component. The pulling-out structure is used to accommodate a sample, and the pulling structure can be slidably provided on the bracket to be opened and closed, and the pulling structure is provided with a first matching portion; the driving component is provided on the bracket and is used to drive the pulling structure to slide, and the driving component is provided with a second matching portion; wherein, one of the first matching portion and the second matching portion is provided with a limiting groove, and the other is configured to include a base and a connecting member; the connecting member can be elastically and telescopically provided on the base to extend into the limiting groove to form a transmission fit, and retract out of the limiting groove to disengage the transmission fit.

[0005] In one embodiment, the second matching part includes an elastic member, the base and the connecting member, the elastic member is connected between the base and the connecting member, and the driving assembly includes a driver connected to the second matching part; the telescopic direction of the connecting member intersects with the sliding direction of the pulling structure, and in the sliding direction, the first matching part can move relative to the second matching part and have a coupling position and a separation position; when the first matching part is in the coupling position, along the telescopic direction, the limit groove and the connecting member are aligned, and the elastic member pushes the connecting member into the limit groove to form a transmission fit; when the first matching part is in the separation position, along the telescopic direction, the limit groove and the connecting member are staggered; wherein, when the pulling structure is subjected to an external pulling force, the elastic member is compressed to switch the first matching part from the coupling position to the separation position; the driver drives the second matching part to move, so that the first matching part is reset to the coupling position.

[0006] In one embodiment, the first matching portion includes a plurality of limiting peaks, and along the sliding direction, two adjacent limiting peaks are spaced apart to form the limiting groove; the limiting peak has an introduction surface facing the side where the second matching portion is located, and the introduction surface is located outside the limiting groove, and in the direction close to the limiting groove along the sliding direction, the introduction surface gradually bends or tilts toward the side close to the second matching portion.

[0007] In one embodiment, the connecting member includes a rod and a roller. The rod is telescopically arranged in the base, and the roller is rotatably arranged at one end of the rod close to the first matching portion to roll with the first matching portion.

[0008] In one embodiment, the connecting member further includes an abutment plate and a locking ring, the base is provided with a through-hole, the rod body is passed through the through-hole, the abutment plate is provided at one end of the rod body close to the first matching portion, the locking ring is provided at the other end of the rod body, and the abutment plate and the locking ring are both located outside the base; the inner wall of the through-hole is protruding with a step, and the two ends of the elastic member respectively abut the step and the abutment plate.

[0009] In one embodiment, the sliding direction is perpendicular to the telescopic direction.

[0010] In one embodiment, the pulling device further includes a first opening sensor and a second opening sensor, both of which are provided on the bracket and electrically connected to the driving assembly, and the driving assembly is used to stop driving when both the first opening sensor and the second opening sensor are triggered; the pulling structure in the open position triggers the first opening sensor; and the connecting member triggers the second opening sensor when it is in transmission cooperation with the limit slot in the open position.

[0011] In one embodiment, the pulling device further includes a first closing sensor and a second closing sensor, both of which are provided on the bracket and electrically connected to the driving assembly, and the driving assembly is used to stop driving when both the first closing sensor and the second closing sensor are triggered; the pulling structure in the closed position triggers the first closing sensor; and the connecting member triggers the second closing sensor when it is in transmission cooperation with the limit slot in the closed position.

[0012] In one embodiment, the drive assembly includes a driver and a transmission structure, the transmission structure transmission-connects the driver and the second mating portion, and the transmission structure is configured to adopt a belt drive or a chain drive.

[0013] On the other hand, the present application further provides a medical device, which includes the pulling device as described above.

[0014] In the aforementioned drawer device, the connector is elastically and retractably mounted on the base. When the connector extends into the limiting slot, the two can form a transmission fit, establishing a transmission fit between the drawer structure and the drive assembly, allowing the drive assembly to automatically drive the drawer structure to open and close. When the drawer structure needs to be opened and closed manually, the connector is controlled to retract out of the limiting slot, disengaging the transmission fit between the first and second fitting portions. The drawer structure is no longer restricted by the drive assembly, allowing manual opening and closing. Thus, the drawer device allows for both automatic and manual opening and closing, achieving an integrated automatic and manual operation without affecting the normal operation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an axonometric diagram of a pulling device provided in one embodiment of the present application.

[0016] Figure 2 for Figure 1 Axonometric diagram of the pulling device from another perspective.

[0017] Figure 3 for Figure 1 A bottom view of the coupling point between the first and second mating parts of the pulling device is shown.

[0018] Figure 4 for Figure 3 A schematic axonometric view of the second mating portion in the pulling device shown.

[0019] Figure 5 This is a simplified diagram illustrating the relative positions of the first matching portion and the second matching portion provided in one embodiment of the present application.

[0020] Figure 6 for Figure 1 A top view of the bracket, the first opening sensor, the second opening sensor, the first closing sensor, and the second closing sensor in the pulling device is shown.

[0021] Figure 7 for Figure 6 A partial enlarged view of point A in the pulling device shown.

[0022] Figure 8 for Figure 6 A partial enlarged view of point B in the pulling device shown.

[0023] Figure 9 for Figure 4 A front view of the second mating portion is shown.

[0024] Figure 10 for Figure 9 The second mating portion is shown in a cross-sectional view along line CC.

[0025] Figure 11 for Figure 1 A side view of the driver, reduction mechanism and transmission mechanism of the drive assembly in the drawing and pulling device is shown.

[0026] Figure 1: 10, pulling device; 100, bracket; 101, slide rail; 102, guide rail; 103, RFID antenna; 200, pulling structure; 201, first matching portion; 202, carrier; 203, handle; 210, limiting groove; 211, concave arc wall; 220, limiting peak; 221, introduction surface; 300, driving assembly; 301, second matching portion; 302, driver; 303, transmission structure; 304, transmission belt; 305, transmission wheel; 306, deceleration structure; 310, base; 311, perforation; 312, guide Toward axis; 313, step; 314, mounting body; 315, slide; 316, pressure plate; 317, trigger piece; 320, connecting piece; 321, rod body; 322, roller; 323, abutment plate; 324, locking ring; 325, through hole; 330, elastic member; 400, buffer structure; 410, cylinder body; 420, rod member; 501, first opening sensor; 502, second opening sensor; 503, first closing sensor; 504, second closing sensor; 20, sample rack; 21, sample tube; S1, sliding direction; S2, telescopic direction. DETAILED DESCRIPTION

[0027] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0028] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0029] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0030] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0031] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0032] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0033] Please also refer to Figures 1 to 5 , Figure 1 This is an axonometric diagram of a pulling device provided in one embodiment of the present application. Figure 2 for Figure 1 Another axonometric diagram of the pulling device shown, Figure 3 for Figure 1 Bottom view of a partial area of ​​the pull-out device shown, Figure 4 for Figure 1 The isometric diagram of the second matching part in the pulling device shown, Figure 5 This is a simplified diagram illustrating the relative positions of the first and second mating portions provided in one embodiment of the present application. The pull-out device 10 provided in one embodiment of the present application includes a support 100, a pull-out structure 200, and a drive assembly 300. The pull-out structure 200 is used to accommodate a sample tube and is slidably disposed on the support 100 to be opened and closed. The drive assembly 300 is disposed on the support 100 and is used to drive the pull-out structure 200 to slide. The pull-out structure 200 is provided with a first mating portion 201, and the drive assembly 300 is provided with a second mating portion 301. One of the first and second mating portions 201 and 301 defines a limiting groove 210, while the other is configured to include a base 310 and a connector 320. The connector 320 is elastically and telescopically disposed on the base 310 to extend into the limiting groove 210 to form a transmission engagement, and to retract out of the limiting groove 210 to disengage the transmission engagement.

[0034] In the above-mentioned pulling device 10, the connecting member 320 can be elastically and telescopically arranged on the base 310. When the connecting member 320 extends into the limiting groove 210, the two can form a transmission fit, so that there is a transmission fit relationship between the pulling structure 200 and the driving assembly 300, and the driving assembly 300 can drive the pulling structure 200 to open and close automatically. When it is necessary to manually open and close the pulling structure 200, the connecting member 320 is controlled to retract out of the limiting groove 210, so that the transmission fit relationship between the first matching portion 201 and the second matching portion 301 is broken, and the pulling structure 200 is no longer driven by the driving assembly 300, nor is it restricted by it, so that the pulling structure 200 can be manually opened and closed. As a result, the pulling device 10 takes into account both automatic opening and closing and manual opening and closing, realizes automatic and manual integration, and will not affect the normal operation of the equipment.

[0035] It is understandable that the drawers for loading sample racks in conventional technology are usually configured to be opened and closed by a motor. If the drawer is directly pushed and pulled manually, the transmission matching relationship between the motor and the drawer will be destroyed, causing damage to the motor and / or the drawer. The present application configures the first matching portion 201 and the second matching portion 301 as described above to be transmission-connected between the drawing structure 200 and the drive assembly 300, and the drive assembly 300 can drive the drawing structure 200 to open and close automatically. Moreover, when the driving force provided by the outside world is sufficient to retract the connecting member 320, the connecting member 320 will also retract and disengage from the limiting groove 210. At this time, the drawing structure 200 and the drive assembly 300 no longer have a transmission matching relationship, and the drawing structure 200 can be freely driven to open and close. Thus, the drawing device 10 can take into account both automatic opening and closing and manual opening and closing.

[0036] See also Figure 2 and Figure 3In one embodiment, the drive assembly 300 includes a driver 302 connected to the second mating portion 301 to drive the second mating portion 301 to move, thereby causing the drawer structure 200 to slide. Furthermore, the drive assembly 300 also includes a transmission structure 303 that is transmission-connected to the driver 302 and the second mating portion 301, allowing the driver 302 to drive the second mating portion 301 to move.

[0037] like Figure 3 In one embodiment, the transmission structure 303 is configured to utilize a belt drive or a chain drive. For example, when the transmission structure 303 utilizes a belt drive, the transmission structure 303 includes a transmission belt 304 and transmission wheels 305. There are at least two transmission wheels 305, and the transmission wheels 305 are rotatably mounted on the bracket 100. The transmission belt 304 wraps around the outer circumference of the transmission wheels 305, and the second mating portion 301 is connected to the transmission belt 304. The driver 302 is connected to one of the transmission wheels 305 to drive the transmission belt 304 to rotate circumferentially.

[0038] See also Figure 1 and Figure 2 In one embodiment, slide rails 101 may be provided on opposite sides of the bracket 100, and the pull-out structure 200 may slide in conjunction with the slide rails 101. The pull-out structure 200 further includes a carrier 202 and a handle 203, wherein the carrier 202 is covered on the bracket 100 to slide in conjunction with the slide rails 101. The sample rack 20 may be loaded on the carrier 202. The handle 203 is connected to the carrier 202, and a pulling force may be conveniently applied to the pull-out structure 200 through the handle 203 to manually open and close the pull-out structure 200. The bracket 100 may be configured as a hollow setting to reduce the overall weight. In addition, the drive assembly 300 may be provided on the side of the bracket 100 facing away from the pull-out structure 200, wherein the second mating portion 301 may be directly provided in the hollow area and mated with the first mating portion 201. This arrangement allows full utilization of the installation space on the bracket 100.

[0039] In one embodiment, the first matching portion 201 may include the base 310 and the connector 320, and correspondingly, the second matching portion 301 is provided with a limiting groove 210. Figure 5 In another embodiment, the first mating portion 201 defines a limiting groove 210, and the second mating portion 301 is configured to include a base 310 and a connector 320. For ease of description, the embodiments will be described using the example of the first mating portion 201 defining a limiting groove 210 and the second mating portion 301 including a base 310 and a connector 320. It should be understood that the reverse is also true, so further explanation will be omitted.

[0040] See also Figure 4 and Figure 5In one embodiment, the second mating portion 301 further includes an elastic member 330 connected between the base 310 and the connecting member 320. In the sliding direction S1, the first mating portion 201 can move relative to the second mating portion 301 to have a coupled position and a decoupled position. When the first mating portion 201 is in the coupled position, along the telescopic direction S2, the limiting groove 210 and the connecting member 320 align, and the elastic member 330 pushes the connecting member 320 into the limiting groove 210, forming a transmission engagement. At this point, the drive assembly 300 can automatically drive the drawer structure 200 to open and close. When the first mating portion 201 is in the decoupled position, the limiting groove 210 and the connecting member 320 are offset along the telescopic direction S2. At this point, the drive assembly 300 and the drawer structure 200 no longer have a transmission relationship, and the drawer structure 200 can be manually opened and closed. When the drawer structure 200 is subjected to an external pulling force, the elastic member 330 is compressed, causing the first mating portion 201 to switch from the coupled position to the decoupled position. Since the direction of movement of the first matching part 201 relative to the second matching part 301 is consistent with the sliding direction S1 of the pull-out structure 200, when manual opening and closing is required, the pull-out structure 200 can be directly pulled to move the first matching part 201 to the separation position relative to the second matching part 301, so that the pull-out structure 200 can slide freely. It should be emphasized that since the direction of relative movement of the first matching part 201 and the second matching part 301 is consistent with the sliding direction S1 of the pull-out structure 200, the pull-out device 10 provided in this application does not require additional unlocking action to change the pulling method (i.e. automatic pulling or manual pulling), making the use of the pull-out device 10 simpler and more convenient. Figure 5 As shown, the first mating portion 201 is located at a separated position relative to the third mating portion 301 at positions P1 and P3 ; the first mating portion 201 is located at a coupled position relative to the third mating portion 301 at position P2 .

[0041] The extension direction S2 of the connecting member 320 intersects with the sliding direction S1 of the pulling structure 200, so that the connecting member 320 can be conveniently and effectively driven to retract along the sliding direction S1. Furthermore, the sliding direction S1 is perpendicular to the extension direction S2.

[0042] Furthermore, the elastic force provided by the elastic member 330 is used to maintain transmission matching between the first matching portion 201 and the second matching portion 301. Therefore, when the external pulling force is sufficient to overcome the elastic force of the elastic member 330, the elastic member 330 is compressed and causes the connecting member 320 to disengage from the limiting groove 210. At this time, the first matching portion 201 moves to the separation position relative to the second matching portion 301, and the pulling device 10 switches to the manual opening and closing mode. In each embodiment, the elastic force that the elastic member 330 can provide when the first matching portion 201 is in the coupling position can be flexibly designed as needed. The elastic member 330 can be constructed as a compression spring, and the above-mentioned elastic force can be designed by adjusting the spring coefficient of the elastic member 330 and the amount of compression of the elastic member 330 when the first matching portion 201 is in the coupling position. Of course, in other embodiments, the elastic member 330 can also be configured as other elements that can provide elastic retaining force, which will not be repeated here.

[0043] Furthermore, the groove wall of the limiting groove 210 can be set to be inclined relative to the sliding direction S1 and the telescopic direction S2. Therefore, when the external pulling force acts on the pulling structure 200, the inclined groove wall can convert the external pulling force into a force that presses down the connecting member 320 along the telescopic direction S2 to push the connecting member 320 back and make the connecting member 320 fall out of the limiting groove 210.

[0044] In one embodiment, the driver 302 is capable of driving the second mating portion 301 to move, causing the first mating portion 201 to return to the coupled position. In other words, the driver 302 is capable of driving the second mating portion 301 to re-couple with the first mating portion 201, restoring the transmission coupling relationship between the two, and reverting the drawer 10 to the automatic opening and closing mode. Thus, the drawer 10 can automatically return to the automatic opening and closing mode when not subjected to an external pulling force, eliminating the need for manual resetting. Taking the opening of the drawer 200 as an example, during the opening process of the drawer 200, if a pulling force (i.e., the external pulling force described above) is actively applied to the drawer 200, the drawer 10 will switch to the manual opening and closing mode. If the manual operation does not fully open the drawer 200, the driver 302 will drive the second mating portion 301 to re-couple with the first mating portion 201 or push against the first mating portion 201 to drive the drawer 200 to continue opening. If the drawer structure 200 is fully opened manually, the driver 302 also drives the second mating portion 301 to re-couple with the first mating portion 201 , so that the first mating portion 201 and the second mating portion 301 have a certain relative position, which is convenient for subsequent operations (such as automatic closing).

[0045] See also Figures 5 to 8In one embodiment, the drawer 10 has an open position and a closed position. The open position refers to the position where the drawer structure 200 is fully open relative to the support 100, while the closed position refers to the position where the drawer structure 200 is fully closed relative to the support 100. The drawer 10 also includes a controller (not shown), a first opening sensor 501, a second opening sensor 502, a first closing sensor 503, and a second closing sensor 504. The first opening sensor 501, the second opening sensor 502, the first closing sensor 503, and the second closing sensor 504 are all located on the support 100. The first opening sensor 501, the second opening sensor 502, the first closing sensor 503, and the second closing sensor 504 are all electrically connected to the drive assembly 300. These four sensors can be electrically connected to the driver 302 via the controller, and the controller can control the driver 302 based on detection signals from the sensors. The first opening sensor 501 and the second opening sensor 502 can be located at one end of the support 100, while the first closing sensor 503 and the second closing sensor 504 can be located at the other end of the support 100.

[0046] The drawer structure 200 in the open position triggers the first opening sensor 501. When the connector 320 engages with the limit slot 210 in the open position, the second opening sensor 502 is triggered. The driver 302 is configured to stop driving when both the first opening sensor 501 and the second opening sensor 502 are triggered. That is, only when the drawer structure 200 moves to the open position and the second engaging portion 301 engages with the limit slot 210 of the drawer structure 200 in the open position does the controller control the driver 302 to stop driving. Thus, regardless of whether manual operation fully opens the drawer structure 200 (i.e., it is in the open position), the driver 302 ensures that the drawer structure 200 is fully opened.

[0047] The drawer structure 200 in the closed position triggers the first closing sensor 503. When the connector 320 engages the retaining groove 210 in the closed position, the second closing sensor 504 is triggered. The driver 302 is configured to stop driving when both the first closing sensor 503 and the second closing sensor 504 are triggered. In other words, the controller controls the driver 302 to stop driving only when the drawer structure 200 moves to the closed position and the second engaging portion 301 moves to engage the retaining groove 210 of the drawer structure 200 in the closed position. Thus, regardless of whether the drawer structure 200 is fully closed (i.e., in the closed position) by manual operation, the driver 302 ensures that the drawer structure 200 is fully closed.

[0048] In this embodiment, since the first matching portion 201 and the second matching portion 301 are separable, an opening sensor and a closing sensor are respectively configured to detect their positions so that they can always return to a certain relative position to facilitate subsequent operations.

[0049] The driving action of the driver 302 driving the drawer structure 200 to open is recorded as forward driving, and the driving action of the driver 302 driving the drawer structure 200 to close is recorded as reverse driving. If the manual operation does not fully open the drawer structure 200, at this time, neither the first opening sensor 501 nor the second opening sensor 502 is triggered, and the driver 302 maintains forward driving, so that the second matching portion 301 catches up with the first matching portion 201 and continues to drive the drawer structure 200 to the open position until both the first opening sensor 501 and the second opening sensor 502 are triggered and the driver 302 stops driving. It should be noted here that in each embodiment of the present application, after the second matching portion 301 catches up with the first matching portion 201, it is not necessary to restore the relative position relationship of the coupling position with the first matching portion 201. The second matching portion 301 can push the second matching portion 301 to drive the drawer structure 200 to move. The second mating portion 301 can be positioned relative to the first mating portion 201 when it is in the open position and returns to the coupled position. The following description will be combined with the structural description of the first mating portion 201 and will not be repeated here. If the drawer structure 200 is fully opened by manual operation, the drawer structure 200 triggers the first open sensor 501, but the second open sensor 502 is not triggered. The actuator 302 maintains forward drive, causing the second mating portion 301 to continue moving until the second mating portion 301 and the first mating portion 201 are recoupled (i.e., the two are in the coupled position relative to each other). At this point, the second open sensor 502 is triggered, and the actuator 302 stops driving.

[0050] If the drawer structure 200 is not fully closed by manual operation, and neither the first closing sensor 503 nor the second closing sensor 504 is triggered, the driver 302 maintains reverse driving, causing the second mating portion 301 to catch up with the first mating portion 201 and continue to drive the drawer structure 200 to the closed position until both the first closing sensor 503 and the second closing sensor 504 are triggered, at which point the driver 302 stops driving. If the drawer structure 200 is fully closed by manual operation, and the drawer structure 200 triggers the first closing sensor 503 but the second closing sensor 504 is not triggered, the driver 302 maintains reverse driving, causing the second mating portion 301 to continue moving until the second mating portion 301 and the first mating portion 201 are re-coupled (i.e., the two are in a coupled relative position), at which point the second closing sensor 504 is triggered, and the driver 302 stops driving.

[0051] See also Figure 9 、 10, combined with Figure 5 In one embodiment, the first mating portion 201 includes a plurality of limiting peaks 220. Along the sliding direction S1, two adjacent limiting peaks 220 are spaced apart to form a limiting groove 210. When the first mating portion 201 moves from the coupling position to the separation position, the connector 320 retracts to pass over one of the limiting peaks 220 and escape from the limiting groove 210. The limiting peak 220 has an introduction surface 221 facing the side where the second mating portion 301 is located. The introduction surface 221 is located outside the limiting groove 210, and in the direction close to the limiting groove 210 along the sliding direction S1, the introduction surface 221 gradually bends or tilts toward the side close to the second mating portion 301. As a result, the connector 320 can gradually retract along the introduction surface 221 and pass over the limiting peak 220, so that the connector 320 can move to align with the limiting groove 210. When the connecting member 320 is aligned with the limiting groove 210 , the connecting member 320 is no longer abutted by the introducing surface 221 , and the elastic member 330 can drive the connecting member 320 to extend into the limiting groove 210 to achieve coupling.

[0052] It is understandable that a limiting structure (not shown in the figure, the same below) can usually be set to cooperate with the pull-out structure 200 in the open position and the closed position to improve the position stability of the pull-out structure 200. At this time, since the pull-out structure 200 cooperates with the limiting structure, the pull-out structure 200 will not move further under the push of the second matching portion 301, so the connecting member 320 can easily resume coupling with the limiting groove 210. When the manually operated pull-out structure 200 is not fully opened or fully closed, since there is no limiting effect provided by the limiting structure at this time, the connecting member 320 can act on the introduction surface 221 (such as Figure 5 3 ), to push the pull-out structure 200 to continue opening or closing, until the pull-out structure 200 is fully opened or fully closed, and under the limiting support provided by the limiting structure, the connector 320 can be re-coupled with the limiting groove 210. Alternatively, in another embodiment, the inclination or curvature of the introduction surface 221 relative to the sliding direction S1 can be configured to be smaller than the inclination or curvature of the limiting groove 210 relative to the sliding direction S1. Thus, when the driver 302 provides the same driving force, the end of the connector 320 can enter the limiting groove 210 along the introduction surface 221, and cannot escape from the limiting groove 210 along the groove wall of the limiting groove 210.

[0053] In one embodiment, when the number of limiting peaks 220 is greater than 2, the number of limiting grooves 210 formed by adjacent limiting peaks 220 is multiple. At this time, the connecting member 320 needs to continuously disengage from multiple limiting grooves 210 before it can disengage from the transmission cooperation with the first matching part 201. Thereby, the coupling stability is improved. Multiple limiting peaks 220 can be arranged at intervals along the sliding direction S1, and the number of limiting peaks 220 can be 2, 3, 5, 7, etc. It can be understood that when the number of limiting peaks 220 is multiple, the introduction surface 221 refers to the outer surface of the side of the two limiting peaks 220 located on the outermost side in the sliding direction S1 away from the limiting groove 210.

[0054] See also Figure 5 In one embodiment, the groove wall of the limiting groove 210 is constructed as an inwardly concave arcuate wall 211 having a smooth surface. Therefore, when the pulling force applied to the pull-out structure 200 is insufficient to cause the connector 320 to escape from the limiting groove 210, the connector 320, under the action of the elastic member 330, will return along the inwardly concave arcuate wall 211 to its deepest position within the limiting groove 210 (i.e., the most stable coupling position). This reduces the probability of the first and second mating portions 201 and 301 moving to a separated position due to accumulated vibration and shaking during transportation within the pulling device 10, thereby improving coupling stability.

[0055] See also Figure 9 、 Figure 10 , combined with Figure 4 In one embodiment, the connector 320 includes a rod 321 and a roller 322. The rod 321 is telescopically disposed within the base 310, and the roller 322 is rotatably disposed at one end of the rod 321, adjacent to the first mating portion 201, to engage in rolling engagement with the first mating portion 201. Configuring the connector 320 to engage in rolling engagement with the first mating portion 201 reduces resistance to relative motion between the two, allowing the pull-out structure 200 to be smoothly manually switched to a manual opening and closing mode. Furthermore, after the external pulling force is removed, the connector 320 can conveniently roll along the guide surface 221 into the retaining groove 210.

[0056] Furthermore, the roller 322 may be configured to have a disc-shaped, spherical, or partially spherical outer profile.

[0057] See also Figure 10In one embodiment, the connecting member 320 further includes a contact plate 323 and a locking ring 324. A through-hole 311 is formed through the base 310, and the rod body 321 is passed through the through-hole 311. The contact plate 323 is provided at one end of the rod body 321 on the side close to the first matching portion 201, and the locking ring 324 is provided at the other end of the rod body 321, and both the contact plate 323 and the locking ring 324 are located outside the base 310. The inner wall of the through-hole 311 is protruding with a step 313, and the two ends of the elastic member 330 respectively abut the step 313 and the contact plate 323. When an external driving force acts on the pulling structure 200, the groove wall of the limiting groove 210 will press the roller 322, compress the elastic member 330 and cause the rod body 321 to retract into the through-hole 311 to escape from the limiting groove 210. After the external driving force is removed, the driver 302 drives the connecting member 320 to roll along the guide surface 221 , and the connecting member 320 retracts over the limiting peak 220 and extends into the limiting groove 210 .

[0058] Furthermore, the abutting plate 323 may be integrally provided with the rod body 321 .

[0059] See also Figure 9 , combined with Figure 4 In one embodiment, the contact plate 323 is provided with a through hole 325. The base 310 is provided with a guide shaft 312, which extends along the telescopic direction S2. The guide shaft 312 passes through the through hole 325 and slidably engages with the wall of the through hole 325 to guide and limit the telescopic movement of the connector 320.

[0060] See also Figure 10 , combined with Figure 4 and Figure 7 In one embodiment, the bracket 100 is provided with a guide rail 102 extending along the sliding direction S1. The base 310 includes a mounting body 314 and a slide 315, which are interconnected. A through-hole 311 is provided in the mounting body 314, and the slide 315 slidably engages with the guide rail 102. Thus, the guide rail 102 can provide guidance and position limiting for the sliding movement of the second mating portion 301 along the sliding direction S1, thereby improving the stability of the movement of the second mating portion 301. Furthermore, the mounting body 314 and the slide 315 can be integrally formed.

[0061] Furthermore, the base 310 includes a pressure plate 316 and a triggering piece 317. The pressure plate 316 is removably locked to the mounting body 314. The pressure plate 316 is used to clamp a portion of the transmission belt 304 against the mounting body 314, thereby firmly connecting the base 310 and the transmission belt 304. The triggering pieces 317 are provided on the mounting body 314. There are at least two triggering pieces 317, which are located on opposite sides of the mounting body 314 in the sliding direction S1, and are used to respectively trigger the second opening sensor 502 and the second closing sensor 504.

[0062] In one embodiment, the driver 302 can be configured as a motor and equipped with an encoder for determining whether the motor is stalled or in a collision. The combination of the driver 302 encoder, the first mating portion 201, and the second mating portion 301 provides dual collision protection and finger pinch protection.

[0063] Furthermore, when the drawer structure 200 is in the closed position, the driver 302 can maintain a standby current and have a certain self-locking effect, thereby reducing the probability of the drawer structure 200 being accidentally opened.

[0064] See also Figure 11 In one embodiment, the driving assembly 300 further includes a deceleration structure 306 , which is connected between the driver 302 and the transmission structure 303 to facilitate adjustment of the movement speed of the second mating portion 301 to better control the opening and closing speed of the pulling structure 200 .

[0065] See also Figure 3 In one embodiment, the drawer 10 further includes a buffer structure 400, which is connected between the drawer structure 200 and the support 100 and provides a buffer for the opening and closing movements of the drawer structure 200. The buffer structure 400 includes a cylinder 410 and a rod 420. The cylinder 410 is disposed on the support 100. One end of the rod 420 passes through the cylinder 410 and the other end is connected to the drawer structure 200. This allows the rod 420 to move with the drawer structure 200. An elastic element or a damping member may be provided within the cylinder 410 to provide a buffering effect. For example, when the drawer structure 200 is opened or closed to a certain position, the compression speed of the elastic element slows down or the damping effect provided by the damping member increases, thereby cushioning the drawer structure 200 and reducing the likelihood of the drawer structure 200 suddenly stopping between the open and closed positions, which could cause the sample tube 21 contained therein to shake violently. Of course, in positions other than the open position and the closed position, the buffer structure 400 can also provide buffering for the movement of the pulling structure 200, reducing the probability of the sample tube 21 shaking violently due to a sudden change in speed of the pulling structure 200.

[0066] Please refer again Figure 6In one embodiment, the holder 100 is equipped with an RFID (Radio Frequency Identification) antenna 103, and the sample rack 20 is equipped with an RFID identification chip (not shown). The RFID antenna 103 can identify the information on the RFID chip. When the sample rack 20 is loaded into the carrier 202 and the pull-out mechanism 200 is closed, the RFID chip on the sample rack 20 moves with the pull-out mechanism 200 to a position where it can be identified by the RFID antenna 103, allowing the RFID antenna 103 to read the information on the RFID chip and obtain information about the sample rack 20.

[0067] An embodiment of the present application further provides a medical device, which may include the pulling device 10 as described in each embodiment, and the pulling device 10 is used to accommodate a sample tube.

[0068] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A pulling device, characterized in that: The pulling device comprises: Bracket; A pull-out structure for accommodating a sample, wherein the pull-out structure is slidably provided on the bracket to be opened and closed, and the pull-out structure is provided with a first matching portion; A driving assembly, provided on the bracket and used to drive the pulling structure to slide, the driving assembly being provided with a second matching portion; Among them, one of the first matching part and the second matching part is provided with a limiting groove, and the other is configured to include a base and a connecting piece; the connecting piece can be elastically and telescopically arranged on the base to extend into the limiting groove to form a transmission fit, and retract out of the limiting groove to disengage the transmission fit.

2. The pulling device according to claim 1, characterized in that: The second matching portion includes an elastic member, the base and the connecting member, the elastic member is connected between the base and the connecting member, and the driving assembly includes a driver connected to the second matching portion; The extension and contraction direction of the connecting member intersects with the sliding direction of the drawer structure. In the sliding direction, the first matching portion can move relative to the second matching portion to have a coupled position and a separated position. When the first matching portion is in the coupling position, along the telescopic direction, the limiting groove is aligned with the connecting member, and the elastic member pushes the connecting member into the limiting groove to form a transmission fit; When the first matching portion is in the separated position, the limiting groove and the connecting member are staggered along the telescopic direction; When the pulling structure is subjected to an external pulling force, the elastic part is compressed to switch the first matching part from the coupling position to the separation position; the driver drives the second matching part to move, so that the first matching part is reset to the coupling position.

3. The pulling device according to claim 2, characterized in that: The first matching portion includes a plurality of limiting peaks, and along the sliding direction, two adjacent limiting peaks are spaced apart to form the limiting groove; the limiting peak has an introduction surface facing the side where the second matching portion is located, and the introduction surface is located outside the limiting groove, and in the direction close to the limiting groove along the sliding direction, the introduction surface gradually bends or tilts toward the side close to the second matching portion.

4. The pulling device according to claim 2, characterized in that: The connecting member includes a rod and a roller. The rod is telescopically arranged on the base. The roller is rotatably arranged on one end of the rod close to the first matching portion to roll with the first matching portion.

5. The pulling device according to claim 4, characterized in that: The connecting member further includes an abutment disk and a locking ring. The base is provided with a through-hole, the rod is passed through the through-hole, the abutment disk is provided at one end of the rod close to the first matching portion, and the locking ring is provided at the other end of the rod, and both the abutment disk and the locking ring are located outside the base. The inner wall of the through hole is protruded with a step, and two ends of the elastic member respectively abut against the step and the abutting plate.

6. The pulling device according to any one of claims 2 to 5, characterized in that: The sliding direction is perpendicular to the telescopic direction.

7. The pulling device according to claim 1, characterized in that: Also included are a first opening sensor and a second opening sensor, both of which are disposed on the bracket and are electrically connected to the driving assembly, wherein the driving assembly is configured to stop driving when both the first opening sensor and the second opening sensor are triggered; The drawer structure in the open position triggers the first opening sensor; When the connecting member is in driving engagement with the limiting groove in the open position, the second opening sensor is triggered.

8. The pulling device according to claim 7, characterized in that: Also included are a first closing sensor and a second closing sensor, both of which are disposed on the bracket and are electrically connected to the driving assembly, wherein the driving assembly is configured to stop driving when both the first closing sensor and the second closing sensor are triggered; The drawer structure in the closed position triggers the first closing sensor; When the connecting member is in transmission engagement with the limiting groove in the closed position, the second closing sensor is triggered.

9. The pulling device according to claim 1, characterized in that: The driving assembly includes a driver and a transmission structure. The transmission structure is connected to the driver and the second matching portion. The transmission structure is configured to adopt belt transmission or chain transmission.

10. A medical device, characterized in that: The medical device comprises the pulling device according to any one of claims 1 to 9.

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