A locking ejection mechanism and an infusion workstation

Abstract

The application discloses a locking ejection mechanism and an infusion workstation. The locking ejection mechanism comprises a support frame, a locking assembly, an ejection assembly and a driving assembly, the locking assembly, the ejection assembly and the driving assembly are arranged on the support frame, the support frame has a placing station, the placing station and the locking assembly are located in front of the ejection assembly, the placing station is suitable for placing an infusion pump, and the locking assembly can temporarily lock the infusion pump; the ejection assembly is connected with the output end of the driving assembly, the driving assembly can drive the ejection assembly to move from a first preset position to a second preset position and a third preset position in sequence along the front-back direction, the ejection assembly is abutted against the locking assembly when the ejection assembly is located at the first preset position, the ejection assembly can drive the locking assembly to release the locking of the infusion pump when the ejection assembly moves from the first preset position to the second preset position, and the ejection assembly can eject the infusion pump when the ejection assembly moves from the second preset position to the third preset position. The application combines unlocking and ejection into one-step operation, and improves the efficiency.

Description

Technical Field

[0001] This application belongs to the field of medical device technology, and in particular relates to a locking ejection mechanism and an infusion workstation. Background Technology

[0002] In practical applications of infusion workstations, the infusion pump needs to be easily accessible when infusion is completed or when it needs to be replaced, in order to improve the efficiency of medical and nursing work.

[0003] In existing technologies, locking and unlocking infusion pumps are typically performed in separate steps: the locking must first be released manually or by an independent drive mechanism, and then the pump body must be removed separately. This requires medical staff to complete at least two steps when handling the infusion pump, resulting in a longer operation time and impacting work efficiency.

[0004] Application content The technical problem this application aims to solve is that, in the existing technology, the locking and unlocking of infusion pumps are usually performed in steps: first, the locking must be released manually or by an independent drive mechanism, and then the pump body must be removed separately. This requires medical staff to complete at least two steps when handling the infusion pump, which is time-consuming and affects work efficiency. This application provides a locking and ejection mechanism and an infusion workstation.

[0005] To address the aforementioned issues, this application provides a locking ejection mechanism, comprising a support frame, a locking component, an ejection component, and a drive component. The locking component, the ejection component, and the drive component are all arranged on the support frame. The support frame has a placement station, and the placement station and the locking component are both located in front of the ejection component. The placement station is suitable for placing an infusion pump, and the locking component can temporarily lock the infusion pump. The ejector component is connected to the output end of the drive component. The drive component can drive the ejector component to move sequentially from a first preset position to a second preset position and a third preset position in the front-back direction. When the ejector component is in the first preset position, it abuts against the locking component. When the ejector component moves from the first preset position to the second preset position, it can drive the locking component to release the locking of the infusion pump. When the ejector component moves from the second preset position to the third preset position, it can eject the infusion pump.

[0006] Optionally, the ejection assembly includes a base and a protrusion disposed on the front side of the base, the rear side of the base is connected to the output end of the drive assembly, when the ejection assembly is located in the first preset position, the base abuts against the locking assembly; when the ejection assembly moves from the first preset position to the second preset position, the base can drive the locking assembly to release the locking of the infusion pump; when the ejection assembly moves from the second preset position to the third preset position, the protrusion can eject the infusion pump.

[0007] Optionally, the support frame is provided with a first clearance hole, which penetrates the support frame in the front-to-back direction. The length of the protrusion is greater than the depth of the first clearance hole. The first clearance hole is used to allow the support frame to avoid the protrusion when the ejection assembly moves in the front-to-back direction. When the ejector assembly is in the second preset position, the front side of the support frame is in front of the front side of the protrusion, or the front side of the support frame is flush with the front side of the protrusion; when the ejector assembly is in the third preset position, the front side of the support frame is behind the front side of the protrusion.

[0008] Optionally, the locking assembly includes a locking block and a rocker arm. The locking block can temporarily lock the infusion pump. The rocker arm is rotatably connected to the support frame about a first axis. The locking block is connected to the front end of the rocker arm. The ejection assembly is provided with a second clearance hole. When the ejector assembly is in the first preset position, it abuts against the rear end of the rocker arm. When the ejector assembly moves from the first preset position to the second preset position, it can drive the rocker arm to rotate around the first axis, so that the locking block releases the lock on the infusion pump, and simultaneously causes the rear end of the rocker arm to rotate to the position corresponding to the second clearance hole. When the ejector assembly moves from the second preset position to the third preset position, the ejector assembly is sleeved on the outside of the rear end of the rocker arm through the second clearance hole to avoid interference between the ejector assembly and the rocker arm; wherein, the extension direction of the first axis is perpendicular to the front-back direction.

[0009] Optionally, the ejection assembly is provided with a wedge, the second clearance hole is located above the wedge, the top surface of the wedge is flush with the bottom surface of the second clearance hole, and the front side of the wedge is an inclined guide surface that extends in the vertical and horizontal directions and the front and rear directions. The rocker arm has a clearance position. When the ejector assembly is located in the first preset position, the rocker arm abuts against the guide surface. When the ejector assembly moves from the first preset position to the second preset position, it can drive the rocker arm to rotate around the first axis, so that the rear end of the rocker arm moves along the guide surface to the position corresponding to the second clearance hole, and simultaneously causes the wedge block to move to the position corresponding to the clearance position. When the ejector assembly moves from the second preset position to the third preset position, the wedge is located at the avoidance position so that the wedge avoids interference with the rocker arm during movement.

[0010] Optionally, the rocker arm includes a rotating part and an abutting part. The abutting part is arranged at the rear end of the rotating part. The rotating part is rotatably connected to the support frame around the first axis. The front end of the rotating part is connected to the locking block. The lower side of the abutting part is connected to the rear side of the rotating part and their extending directions intersect. The lower side of the abutting part and the rear side of the rotating part form the clearance position.

[0011] Optionally, the locking ejection mechanism further includes a first elastic element connected between the rocker arm and the support frame, the first elastic element having a tendency to drive the locking block toward the position of locking the infusion pump via the rocker arm.

[0012] Optionally, the driving assembly includes a rotating component and a conversion component, the ejection component is disposed on the conversion component, the conversion component is connected to the rotating component in a transmission manner, the rotating component is capable of rotating around a second axis and driving the conversion component and the ejection component to move synchronously in the front-back direction; wherein, the extension direction of the second axis is perpendicular to the front-back direction.

[0013] Optionally, the conversion component includes a conversion seat, the conversion seat is provided with a rack, the rack extends in a front-rear direction, the rotating component includes a rotating shaft, the rotating shaft is rotatable about the second axis, and a gear is sleeved on the rotating shaft, the gear meshing with the rack; The locking ejection mechanism further includes a second elastic element, which is connected between the conversion seat and the support frame. The second elastic element has a tendency to drive the conversion seat to move away from the locking assembly in the front-back direction.

[0014] According to the locking and ejection mechanism provided in this application embodiment, the movement path of the ejection component is synchronously controlled by the drive component to achieve a linkage operation between unlocking and ejection. When the drive component is activated, the ejection component moves forward from the first preset position to the second preset position. During this process, the ejection component triggers the locking component to release the lock on the infusion pump. When it continues to move to the third preset position, the ejection component directly ejects the infusion pump from the placement position. By controlling the segmented displacement of the ejection component with a single drive source, the traditional step-by-step unlocking and ejection operations are integrated into a continuous action. This application, through the displacement design of the ejection component, combines the unlocking and ejection steps into a single operation, significantly reducing the time for medical staff to pick up and place the infusion pump and improving work efficiency.

[0015] An infusion workstation provided in this application includes the aforementioned locking ejection mechanism. The bottom of the infusion pump is provided with an opening slot, and the output end of the locking component can be inserted into the opening slot so that the locking component can temporarily lock the infusion pump. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of an infusion workstation provided in one embodiment of this application; Figure 2 This is a schematic diagram of the infusion workstation provided in one embodiment of this application after removing part of its structure; Figure 3 yes Figure 2 A schematic diagram after removing part of the structure; Figure 4 yes Figure 3 A schematic diagram after removing part of the structure; Figure 5 yes Figure 4 Another structural diagram from a different perspective; Figure 6 yes Figure 5 A schematic diagram after removing part of the structure; Figure 7 yes Figure 6 A schematic diagram after removing part of the structure; Figure 8 yes Figure 7 A magnified view of A; Figure 9This is a schematic diagram showing the connection relationship between the locking component and the ejection component located at the first preset position of the infusion workstation provided in one embodiment of this application; Figure 10 This is a schematic diagram showing the connection relationship between the locking component and the ejection component located at the second preset position of the infusion workstation provided in one embodiment of this application; Figure 11 This is a schematic diagram of the infusion system provided in one embodiment of this application; Figure 12 This is a schematic diagram of the structure of the infusion pump of the infusion system provided in one embodiment of this application.

[0018] The reference numerals in the accompanying drawings are as follows: 1. Support frame; 11. Support; 12. First clearance hole; 13. Guide seat; 131. Guide column; 132. Third clearance hole; 2. Locking assembly; 21. Locking block; 22. Rocker arm; 221. Rotating part; 2211. Rear side of rotating part; 222. Abutting part; 2221. Lower side of abutting part; 23. Clearance station; 3. Ejector assembly; 31. Base; 32. Protrusion; 33. Second clearance hole; 34. Wedge; 341. Guide surface; 4. Drive assembly; 41. Rotating component; 411. Rotating shaft; 412. Gear; 42. Conversion component; 421. Conversion base; 422. Rack; 5. Support plate; 6. Place the workstation; 7. Injection pump; 71. Open slot; 8. First elastic element; 9. Second elastic element. Detailed Implementation

[0019] To make the technical problems, technical solutions, and beneficial effects solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0020] In the description of this application, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0022] like Figures 1 to 12 As shown, this application embodiment provides an infusion system, including an infusion pump 7 and an infusion workstation. The bottom of the infusion pump 7 is provided with an opening groove 71, and the output end of the locking component 2 can be inserted into the opening groove 71 so that the locking component 2 can temporarily lock the infusion pump 7.

[0023] In addition, such as Figure 1 , 11 As shown in Figures 1 and 12, this application embodiment provides an infusion workstation, including a locking ejection mechanism. The bottom of the infusion pump 7 is provided with an opening groove 71, and the output end of the locking component 2 can be inserted into the opening groove 71 so that the locking component 2 can temporarily lock the infusion pump 7.

[0024] In addition, such as Figure 1-4 As shown in Figure 12, one embodiment of this application provides a locking ejection mechanism, including a support frame 1, a locking component 2, an ejection component 3, and a drive component 4. The locking component 2, the ejection component 3, and the drive component 4 are all arranged on the support frame 1. The support frame 1 has a placement station 6. The placement station 6 and the locking component 2 are both located in front of the ejection component 3. The placement station 6 is suitable for placing an infusion pump 7. The locking component 2 can temporarily lock the infusion pump 7. The ejector component 3 is connected to the output end of the drive component 4. The drive component 4 can drive the ejector component 3 to move sequentially from a first preset position to a second preset position and a third preset position in the front-back direction. When the ejector component 3 is in the first preset position, it abuts against the locking component 2. When the ejector component 3 moves from the first preset position to the second preset position, it can cause the locking component 2 to release the locking of the infusion pump 7. When the ejector component 3 moves from the second preset position to the third preset position, it can eject the infusion pump 7. In this embodiment, the front-back direction is the auxiliary direction. Figure 1 The X-axis is used as a reference direction for the placement station 6 of the support frame 1. The side where the placement station 6 is located is "front," and the side where the drive component 4 is located is "rear." The ejector component 3 moves along this straight line. The first preset position can coincide with the initial position of the ejector component 3 or be located behind the initial position. When the ejector component 3 is in the first preset position, it abuts against the locking component 2. The first preset position is the trigger point for the unlocking action. The second preset position is the middle position of the ejector component 3 during its forward movement from the first preset position. During the forward movement of the ejector component 3 to the second preset position, the locking component 2 is unlocked from the infusion pump 7 through mechanical linkage (such as an inclined plane or cam structure). The third preset position is the endpoint of the ejector component 3's continued forward movement. At this point, the ejector component 3 directly contacts the infusion pump 7 and completely ejects it from the placement station 6, completing the pick-up and drop-off operation. This application integrates the traditional step-by-step unlocking and ejection operations into a single continuous action through the linkage design of the ejector component 3 and the drive component 4. Medical staff only need to activate the drive component 4 to simultaneously unlock and eject the infusion pump 7, significantly shortening the operation time (simplifying from at least two steps to one) and greatly improving work efficiency. Simultaneously, the integrated design reduces the use of independent drive mechanisms, lowering structural complexity and manufacturing costs. Furthermore, the simplified operation process reduces the risk of human error, ensuring the safety and reliability of the infusion work. A support plate 5 is provided in front of the support frame 1, and the support plate 5 and the support frame 1 together form a placement station 6. It is understood that this application primarily focuses on unlocking and ejecting the infusion pump 7 through a single operation. Although the infusion pump 7 is used, its structure and working principle are already publicly disclosed in existing technologies. This application does not improve the working principle of the infusion pump 7, and the relevant content regarding the infusion pump 7 will not be elaborated upon in this application.

[0025] like Figure 3-7As shown, in one embodiment, the ejector assembly 3 includes a base 31 and a protrusion 32 disposed on the front side of the base 31. The rear side of the base 31 is connected to the output end of the drive assembly 4. When the ejector assembly 3 is in the first preset position, the base 31 abuts against the locking assembly 2. When the ejector assembly 3 moves from the first preset position to the second preset position, the base 31 can drive the locking assembly 2 to release the lock on the infusion pump 7. When the ejector assembly 3 moves from the second preset position to the third preset position, the protrusion 32 can eject the infusion pump 7. In this embodiment, the "unlock-eject" continuous operation is achieved through the phased action of the base 31 and the protrusion 32 of the ejector assembly 3. When the base 31 in the ejector assembly 3 moves from the first preset position to the second preset position, it triggers the locking assembly 2 to release the lock. When the protrusion 32 in the ejector assembly 3 moves from the second preset position to the third preset position, it directly ejects the infusion pump 7. This application integrates the traditional step-by-step operation into a single driving action, allowing medical staff to complete the pick-up and drop-off process simply by activating the driving component 4, significantly improving work efficiency. Simultaneously, the integrated structure of the ejection component 3 reduces independent driving parts, lowering manufacturing and maintenance costs. Furthermore, the simplified operation process reduces the risk of human error, ensuring the safety of the infusion process.

[0026] like Figure 2-3 As shown, in one embodiment, the support frame 1 is provided with a first clearance hole 12, which penetrates the support frame 1 in the front-back direction. The length of the protrusion 32 is greater than the depth of the first clearance hole 12. The first clearance hole 12 is used to enable the support frame 1 to avoid the protrusion 32 when the ejector assembly 3 moves in the front-back direction. When the ejector assembly 3 is in the second preset position, the front side of the support frame 1 is in front of the front side of the protrusion 32, or the front side of the support frame 1 is flush with the front side of the protrusion 32; when the ejector assembly 3 is in the third preset position, the front side of the support frame 1 is behind the front side of the protrusion 32. This embodiment achieves precise phased control of the unlocking and ejection actions through the length difference design between the first clearance hole 12 and the protrusion 32. When the ejector assembly 3 moves from the first preset position to the second preset position (e.g., moves forward 10mm), the base 31 triggers the locking assembly 2 to unlock through mechanical linkage. At this time, the protrusion 32 will not interfere with the infusion pump 7 because it does not extend out of the first clearance hole 12; when it continues to move to the third preset position (e.g., moves forward 5mm), the protrusion 32 extends out of the clearance hole and ejects the infusion pump 7. It ensures the strict timing of unlocking and ejection actions, avoiding the risk of jamming or damage caused by ejection before unlocking is completed. At the same time, it achieves continuous operation through a single drive source, further shortening the time for medical staff to pick up and put down the infusion pump 7 (reducing the operation steps by more than 50%), and improving work efficiency and operational safety.

[0027] like Figure 3As shown, in one embodiment, the support frame 1 is provided with a guide seat 13, and the guide seat 13 is provided with a guide post 131 extending in the front-rear direction. The ejector assembly 3 is movably connected to the guide post 131. The guide seat 13 is provided with a third clearance hole 132 corresponding to the protrusion 32, and the protrusion 32 passes through the third clearance hole 132. The ejector assembly 3 is provided with a mounting hole, and the guide post 131 is assembled in the mounting hole. The third clearance hole 132 can be a groove structure.

[0028] like Figure 3-10 As shown, in one embodiment, the locking assembly 2 includes a locking block 21 and a rocker arm 22. The locking block 21 can temporarily lock the infusion pump 7. The rocker arm 22 is rotatably connected to the support frame 1 about a first axis. The locking block 21 is connected to the front end of the rocker arm 22. The ejection assembly 3 is provided with a second clearance hole 33. When the ejector assembly 3 is in the first preset position, it abuts against the rear end of the rocker arm 22. When the ejector assembly 3 moves from the first preset position to the second preset position, it can drive the rocker arm 22 to rotate around the first axis, so that the locking block 21 releases the lock on the infusion pump 7, and simultaneously causes the rear end of the rocker arm 22 to rotate to the position corresponding to the second clearance hole 33. When the ejector component 3 moves from the second preset position to the third preset position, the ejector component 3 is sleeved on the outside of the rear end of the rocker arm 22 through the second clearance hole 33 to avoid interference between the ejector component 3 and the rocker arm 22; wherein, the extension direction of the first axis is perpendicular to the front-back direction. In this embodiment, the extension direction of the first axis is perpendicular to the rear-back direction. Figure 1 The support frame 1 is equipped with a support 11, and the rocker arm 22 is rotatably connected to the support 11 around the first axis. When the ejector assembly 3 moves from the first preset position to the second preset position, it drives the rocker arm 22 to rotate around the first axis by abutting the rear end of the rocker arm 22, and simultaneously drives the locking block 21 to release the lock on the infusion pump 7. When the ejector assembly 3 continues to move to the third preset position, the ejector assembly 3 is sleeved on the rear end of the rocker arm 22 through the second clearance hole 33 to avoid interference and complete the ejection. This application integrates the traditional step-by-step unlocking and ejection operation into a single continuous action. Medical staff only need to activate the drive assembly 4 to complete the picking and placing, reducing the unlocking and ejection steps and shortening the operation time. At the same time, the rocker arm 22 rotates around the first axis perpendicular to the front and back direction, and uses the lever principle to achieve rapid unlocking of the locking block 21 with a small driving force; the second clearance hole 33 is sleeved on the rear end of the rocker arm 22 during the ejection stage to avoid motion interference between the ejector assembly 3 and the rocker arm 22, ensuring the continuity of the action. Meanwhile, the mechanical linkage design reduces the use of independent drive components, lowering structural complexity and the risk of failure. Furthermore, the unlocking and ejection actions are strictly separated by mechanical timing control (unlocking before ejection), avoiding the jamming or pump damage problems caused by incomplete unlocking before ejection in traditional structures, thus ensuring the stability and safety of the infusion process.

[0029] like Figure 6-10 As shown, in one embodiment, the ejector assembly 3 is provided with a wedge 34, the second clearance hole 33 is located above the wedge 34, the top surface of the wedge 34 is flush with the bottom surface of the second clearance hole 33, and the front side of the wedge 34 is an inclined guide surface 341, which extends along the vertical and horizontal directions and the front and rear directions. The rocker arm 22 has a clearance station 23. When the ejector assembly 3 is in the first preset position, the rocker arm 22 abuts against the guide surface 341. When the ejector assembly 3 moves from the first preset position to the second preset position, it can drive the rocker arm 22 to rotate around the first axis, so that the rear end of the rocker arm 22 moves along the guide surface 341 to the position corresponding to the second clearance hole 33, and simultaneously causes the wedge block 34 to move to the position corresponding to the clearance station 23. When the ejector component 3 moves from the second preset position to the third preset position, the wedge 34 is located at the avoidance position 23 to prevent the wedge 34 from interfering with the rocker arm 22 during movement. In this embodiment, the up and down direction is the auxiliary direction. Figure 1The Z-axis. The movement of the rear end of the rocker arm 22 along the guide surface 341 to the position corresponding to the second clearance hole 33 refers to the movement of the ejector assembly 3 from the first preset position to the second preset position. At this time, the rear end of the rocker arm 22 slides along the inclined guide surface 341 of the wedge block 34, forcing the rocker arm 22 to rotate around the first axis (perpendicular to the front-back direction), ultimately bringing the rear end of the rocker arm 22 to a position aligned with the second clearance hole 33. At this time, the second clearance hole 33 provides a spatial channel for the subsequent mounting of the rear end of the rocker arm 22 onto the ejector assembly 3. The movement of the wedge block 34 to the position corresponding to the clearance station 23 refers to the movement of the ejector assembly 3 to the second preset position. At this time, the wedge block 34 enters the preset "clearance station 23" (such as a groove or cavity area) on the support frame 1. At this time, the wedge block 34 does not contact the rocker arm 22 or other components, avoiding motion interference caused by the position of the wedge block 34 during the ejection stage, ensuring that the protrusion 32 is smoothly ejected from the infusion pump 7. When the ejector assembly 3 moves from the first preset position to the second preset position, the guide surface 341 of the wedge block 34 drives the rear end of the rocker arm 22 to move along the inclined guide surface 341, simultaneously driving the rocker arm 22 to rotate around the first axis, thus quickly unlocking the locking block 21. When the ejector assembly 3 continues to move to the third preset position, the wedge block 34 enters the avoidance position 23, and the ejector assembly 3 fits onto the rear end of the rocker arm 22 through the second avoidance hole 33, avoiding interference and completing the ejection. This application integrates the traditional step-by-step unlocking and ejection operations into a single continuous action. Medical personnel only need to activate the drive assembly 4 to complete the retrieval and placement, shortening the operation time. At the same time, the guide surface 341 of the wedge block 34 uses the inclined plane transmission principle to convert the linear motion of the ejector assembly 3 into the rotation of the rocker arm 22, achieving rapid unlocking with a smaller driving force; the second avoidance hole 33 and the avoidance position 23 of the wedge block 34 work together to ensure no motion interference during the ejection stage, improving the continuity of the action. At the same time, the mechanical linkage design reduces the use of independent drive components, reducing structural complexity and failure risk. In addition, the unlocking and ejection actions are strictly separated by mechanical timing control (unlocking first, then ejecting), which avoids the jamming or pump damage caused by ejection before complete unlocking in traditional structures, and ensures the stability and safety of the infusion process.

[0030] like Figure 7-10As shown, in one embodiment, the rocker arm 22 includes a rotating part 221 and an abutting part 222. The abutting part 222 is arranged at the rear end of the rotating part 221. The rotating part 221 is rotatably connected to the support frame 1 about a first axis. The front end of the rotating part 221 is connected to the locking block 21. The lower side surface 2221 of the abutting part is connected to the rear side surface 2211 of the rotating part, and their extending directions intersect. The lower side surface 2221 of the abutting part and the rear side surface 2211 of the rotating part form a clearance station 23. In this embodiment, the front end and rear end refer to the two ends in the front-rear direction, and the front side and rear side refer to the two sides in the front-rear direction. The abutting part 222 is preferably integrally formed with the rotating part 221. The abutment part 222 is located at the rear end of the rotating part 221, and its lower side forms a clearance station 23 with the rear side of the rotating part 221. When the ejector component 3 moves from the second preset position to the third preset position, the wedge block 34 enters the clearance station 23. At the same time, the ejector component 3 is fitted with the rear end of the rocker arm 22 through the second clearance hole 33, avoiding motion interference. This ensures the strict timing of the unlocking (rotating part 221 drives locking block 21) and ejection (protrusion 32 ejects the pump body) actions. Medical staff only need to activate a single drive to complete all operations, reducing the steps by more than 50%. Through the spatial clearance design of the clearance station 23 and the second clearance hole 33, the timing control of "unlocking before ejection" is ensured, avoiding the jamming or pump body damage caused by ejection before complete unlocking in traditional structures, and ensuring the stability of the infusion process.

[0031] like Figure 7 As shown, in one embodiment, the locking ejection mechanism further includes a first elastic element 8, which is connected between the rocker arm 22 and the support frame 1. The first elastic element 8 has a tendency to drive the locking block 21 toward the locking position of the infusion pump 7 via the rocker arm 22. In this embodiment, the first elastic element 8 can be a snap ring. When the ejection assembly 3 moves from the first preset position to the second preset position, the ejection assembly 3 overcomes the elastic force of the first elastic element 8 to drive the rocker arm 22 to rotate, thereby unlocking the locking block 21. After the ejection assembly 3 completes ejection and returns to the initial position, the first elastic element 8 releases the stored elastic energy, drives the rocker arm 22 to rotate in the opposite direction, and drives the locking block 21 to re-enter the locking position, preparing for the next placement of the infusion pump 7. Through the automatic reset design of the first elastic element 8, this embodiment achieves full automation of the locking-unlocking-reset process while ensuring locking stability, further improving the operational efficiency of medical personnel and the reliability of the mechanism.

[0032] like Figure 3-4As shown, in one embodiment, the driving assembly 4 includes a rotating member 41 and a converting member 42. An ejecting assembly 3 is disposed on the converting member 42, and the converting member 42 is drively connected to the rotating member 41. The rotating member 41 can rotate around a second axis and drive the converting member 42 and the ejecting assembly 3 to move synchronously in the front-back direction; wherein, the extension direction of the second axis is perpendicular to the front-back direction. In this embodiment, the extension direction of the second axis is... Figure 1 The rotating component 41 rotates around a second axis (perpendicular to the front-back direction), and the rotational motion is converted into the linear motion of the ejector assembly 3 by the conversion component 42. The conversion component 42 converts the rotational motion of the rotating component 41 into the linear motion of the ejector assembly 3. For example, when the rotating component 41 is a gear 412, the conversion component 42 can be a rack 422 meshing with it; when the rotating component 41 is a cam, the conversion component 42 can be a follower that moves with the cam profile. The ejector assembly 3 is fixed on the conversion component 42 and moves synchronously with it. This application integrates the traditional step-by-step unlocking and ejection operations into a single continuous action. Medical personnel only need to operate the rotating component 41 (such as rotating a handle) to complete the picking and placing, shortening the operation time of unlocking and ejection.

[0033] like Figure 5-7 As shown, in one embodiment, the conversion member 42 includes a conversion seat 421, the conversion seat 421 is provided with a rack 422, the rack 422 extends in the front-back direction, the rotating member 41 includes a rotating shaft 411, the rotating shaft 411 is rotatable about a second axis, and a gear 412 is sleeved on the rotating shaft 411, the gear 412 meshes with the rack 422; The locking ejection mechanism also includes a second elastic element 9, which is connected between the conversion seat 421 and the support frame 1. The second elastic element 9 has a tendency to drive the conversion seat 421 to move away from the locking component 2 in the front-back direction. In this embodiment, the rotation angle of the rotating component 41 is precisely converted into the linear displacement of the ejection component 3, strictly ensuring the timing of the unlocking and ejection actions (unlocking first, then ejection), avoiding the jamming or pump damage problems caused by displacement errors in traditional structures. The second elastic element 9, connected between the conversion seat 421 and the support frame 1, always provides a tendency to drive the conversion seat 421 away from the locking component 2. During the ejection phase, the second elastic element 9 is stretched or compressed, storing elastic energy. After the ejection component 3 completes the ejection action, the elastic force of the second elastic element 9 can assist the conversion seat 421 to quickly return to the initial position, preparing for the next operation. This application achieves a balance between operating efficiency, structural compactness, and precise control while ensuring driving force, further improving the clinical applicability of the infusion workstation.

[0034] According to the locking and ejection mechanism provided in this application embodiment, the movement path of the ejection component 3 is synchronously controlled by the drive component 4 to achieve a linkage operation of unlocking and ejection. When the drive component 4 is activated, the ejection component 3 moves forward from the first preset position to the second preset position. During this process, the ejection component 3 triggers the locking component 2 to release the lock on the infusion pump 7. When it continues to move to the third preset position, the ejection component 3 directly ejects the infusion pump 7 from the placement station 6. By controlling the segmented displacement of the ejection component 3 with a single drive source, the traditional step-by-step unlocking and ejection operations are integrated into a continuous action. This application, through the displacement design of the ejection component 3, combines the unlocking and ejection steps into a single operation, significantly shortening the time for medical staff to pick up and place the infusion pump 7 and improving work efficiency.

[0035] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A latch-eject mechanism characterized by, The device includes a support frame, a locking assembly, an ejection assembly, and a drive assembly. The locking assembly, the ejection assembly, and the drive assembly are all arranged on the support frame. The support frame has a placement station. The placement station and the locking assembly are both located in front of the ejection assembly. The placement station is suitable for placing the infusion pump. The locking assembly can temporarily lock the infusion pump. The ejector component is connected to the output end of the drive component. The drive component can drive the ejector component to move sequentially from a first preset position to a second preset position and a third preset position in the front-back direction. When the ejector component is in the first preset position, it abuts against the locking component. When the ejector component moves from the first preset position to the second preset position, it can drive the locking component to release the locking of the infusion pump. When the ejector component moves from the second preset position to the third preset position, it can eject the infusion pump.

2. The locking ejection mechanism according to claim 1, wherein The ejector assembly includes a base and a protrusion disposed on the front side of the base. The rear side of the base is connected to the output end of the drive assembly. When the ejector assembly is located in the first preset position, the base abuts against the locking assembly. When the ejector assembly moves from the first preset position to the second preset position, the base can drive the locking assembly to release the locking of the infusion pump. When the ejector assembly moves from the second preset position to the third preset position, the protrusion can eject the infusion pump.

3. The locking ejection mechanism of claim 2, wherein The support frame is provided with a first clearance hole, which penetrates the support frame in the front-to-back direction. The length of the protrusion is greater than the depth of the first clearance hole. The first clearance hole is used to allow the support frame to avoid the protrusion when the ejection assembly moves in the front-to-back direction. When the ejector assembly is in the second preset position, the front side of the support frame is in front of the front side of the protrusion, or the front side of the support frame is flush with the front side of the protrusion; when the ejector assembly is in the third preset position, the front side of the support frame is behind the front side of the protrusion.

4. The locking ejection mechanism of claim 1, wherein The locking assembly includes a locking block and a rocker arm. The locking block can temporarily lock the infusion pump. The rocker arm is rotatably connected to the support frame about a first axis. The locking block is connected to the front end of the rocker arm. The ejection assembly is provided with a second clearance hole. When the ejector assembly is in the first preset position, it abuts against the rear end of the rocker arm. When the ejector assembly moves from the first preset position to the second preset position, it can drive the rocker arm to rotate around the first axis, so that the locking block releases the lock on the infusion pump, and simultaneously causes the rear end of the rocker arm to rotate to the position corresponding to the second clearance hole. When the ejector assembly moves from the second preset position to the third preset position, the ejector assembly is sleeved on the outside of the rear end of the rocker arm through the second clearance hole to avoid interference between the ejector assembly and the rocker arm; wherein, the extension direction of the first axis is perpendicular to the front-back direction.

5. The locking ejection mechanism according to claim 4, characterized in that, The ejection assembly is provided with a wedge, the second clearance hole is located above the wedge, the top surface of the wedge is flush with the bottom surface of the second clearance hole, and the front side of the wedge is an inclined guide surface that extends in the vertical and horizontal directions and the front and back directions. The rocker arm has a clearance position. When the ejector assembly is located in the first preset position, the rocker arm abuts against the guide surface. When the ejector assembly moves from the first preset position to the second preset position, it can drive the rocker arm to rotate around the first axis, so that the rear end of the rocker arm moves along the guide surface to the position corresponding to the second clearance hole, and simultaneously causes the wedge block to move to the position corresponding to the clearance position. When the ejector assembly moves from the second preset position to the third preset position, the wedge is located at the avoidance position so that the wedge avoids interference with the rocker arm during movement.

6. The locking ejection mechanism of claim 5, wherein The rocker arm includes a rotating part and an abutting part. The abutting part is arranged at the rear end of the rotating part. The rotating part is rotatably connected to the support frame around the first axis. The front end of the rotating part is connected to the locking block. The lower side of the abutting part is connected to the rear side of the rotating part and their extension directions intersect. The lower side of the abutting part and the rear side of the rotating part form the clearance position.

7. The locking ejection mechanism of claim 4, wherein The locking ejection mechanism further includes a first elastic element, which is connected between the rocker arm and the support frame. The first elastic element has a tendency to drive the locking block toward the position of locking the infusion pump via the rocker arm.

8. The locking ejection mechanism of claim 1, wherein The driving assembly includes a rotating component and a conversion component. The ejection component is disposed on the conversion component and is connected to the rotating component in a transmission manner. The rotating component is capable of rotating around a second axis and driving the conversion component and the ejection component to move synchronously in the front-back direction. The extension direction of the second axis is perpendicular to the front-back direction.

9. The locking ejection mechanism of claim 8, wherein, The conversion component includes a conversion seat, the conversion seat is provided with a rack, the rack extends in a front-rear direction, the rotating component includes a rotating shaft, the rotating shaft is rotatable about the second axis, and a gear is sleeved on the rotating shaft, the gear meshing with the rack; The locking ejection mechanism further includes a second elastic element, which is connected between the conversion seat and the support frame. The second elastic element has a tendency to drive the conversion seat to move away from the locking assembly in the front-back direction.

10. An infusion station, characterized in that The device includes a locking ejection mechanism as described in any one of claims 1 to 9, wherein the bottom of the infusion pump is provided with an opening slot, and the output end of the locking component can be inserted into the opening slot so that the locking component can temporarily lock the infusion pump.

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