Door lock control system and method for roller pump type high-pressure injector

Abstract

The invention discloses a door lock control system and method for a roller pump type high-pressure injector, and belongs to the technical field of medical instruments. The control system comprises a door plate, a main control board, a lock catch assembly, a lock body assembly, an in-place detection assembly, a man-machine interaction unit and a controller. The door plate is rotationally connected with the main control plate to realize opening and closing; the lock catch assembly is installed on the door plate and matched with the lock body assembly at the bottom of the main control board. The main control board is provided with a through groove matched with the outline of the lock catch. The in-place detection assembly detects the position of the door plate and sends a signal to the controller once the door plate is closed, and a locking instruction is triggered. The man-machine interaction unit receives the unlocking instruction and transmits the unlocking instruction to the controller. The controller controls the lock body assembly to execute corresponding locking or unlocking actions through electrical connection according to the received instruction. The door lock control system provided by the invention is simple in appearance, avoids pipeline winding and collision risks, and ensures safety; and meanwhile, by adopting automatic intelligent control, the operation efficiency of unlocking and locking the lock is also remarkably improved.

Description

Technical Field

[0001] The invention relates to a door lock control system and method for a roller pump type high-pressure injector, belonging to the technical field of medical equipment. Background Art

[0002] In medical diagnosis and treatment procedures, roller pump high-pressure injectors play a vital role as key equipment for injecting contrast agents or other agents into patients. Especially when performing high-precision medical examinations such as computed tomography, ultrasound and magnetic resonance imaging (MRT), their stability and reliability are directly related to the accuracy of diagnosis and patient safety.

[0003] The working principle of the roller pump high-pressure injector requires that during operation, the roller pump and pipeline must be operated in a closed internal space to ensure the safety of operation and the accuracy of pressure monitoring. As a key component of the closed space, the door panel not only plays a role in safety protection, but also works with the pressure sensor on the host to monitor the pressure changes in the pipeline in real time to ensure the smooth progress of the injection process. In addition, the door panel and the mechanism on the host need to work together to realize the switching pipeline valve function of saline and contrast agent.

[0004] However, the existing roller pump type high-pressure syringe door lock mechanism has obvious design defects. On the one hand, some door lock mechanisms are manually operated, which is not only laborious and has a low degree of automation, but is also easily overlooked by medical staff during use, thereby increasing the risk of operational errors. On the other hand, some door lock mechanisms use a rotating locking method with a protruding special-shaped structure on the main unit. This design is not only abrupt and unsightly in appearance, but more importantly, the protruding special-shaped structure is easily entangled in the pipeline during the installation and removal of the pipeline, which not only affects the tense and orderly work rhythm of medical staff, but may also bump into medical staff and cause unnecessary injuries. At the same time, this design also increases the difficulty of cleaning and reduces work efficiency.

[0005] Therefore, there is an urgent need to provide a new door lock control system that is safer, more efficient, more convenient and has a high degree of automation to solve the relevant technical defects faced in the prior art. Summary of the invention

[0006] The purpose of the present invention is to provide a door lock control system and method for a roller pump high-pressure injector, aiming to improve the overall safety and operational convenience of the equipment through structural layout optimization and intelligent and precise control.

[0007] In order to solve the above technical problems, the present invention is implemented by adopting the following technical solutions: On the one hand, the present invention provides a door lock control system for a roller pump type high-pressure injector, which includes: a door panel, a main control panel, a lock assembly, a lock body assembly, an in-place detection assembly, a human-computer interaction unit and a controller; One side of the door panel is rotatably connected to the main control panel; the lock assembly is installed on the other side of the door panel and is adapted to the lock body assembly installed at the bottom of the main control panel; a through groove adapted to the outer contour of the lock assembly is also provided on the main control panel; an in-place detection component, used to detect the relative position of the door panel (1) and the main control panel, and when the door panel reaches a preset detection range, an in-place detection signal is generated and transmitted to the controller, and the controller generates a locking control instruction based on the in-place detection signal; a human-machine interaction unit, used to receive an unlocking control instruction input by an operator, and transmit the unlocking control instruction to the controller; The controller is electrically connected to the in-place detection component and the human-machine interaction unit respectively, and is used to control the lock body component to perform corresponding locking actions or unlocking actions according to locking control instructions or unlocking control instructions.

[0008] Optionally, the in-position detection component includes: a proximity switch body and an iron piece; the iron piece is mounted on the door panel, the proximity switch body is mounted on the main control board, and the proximity switch body is electrically connected to the controller; When the iron piece installed on the door panel moves into a preset detection range of the proximity switch body, the proximity switch body generates an in-place detection signal and transmits the in-place detection signal to the controller.

[0009] Optionally, the lock assembly includes: a lock, a first lock washer and a second lock washer; the lock is in a "U" shape, and its open end passes through the first lock washer, the door panel and the second lock washer in sequence, and is fixedly connected to the door panel through a nut.

[0010] Optionally, the lock body assembly includes: a connecting assembly, a driving assembly, a left-right moving assembly, and an up-and-down moving assembly; The connecting assembly includes: a base plate and a connecting frame; the bottom of the connecting frame is fixedly connected to the base plate, and the top is fixedly connected to the main control board; the connecting frame also has two sliding spaces on both sides of the vertical partition, namely the first sliding space and the second sliding space.

[0011] Optionally, the first sliding space is used for the up-and-down moving component to slide in the vertical direction; the second sliding space is used for the left-and-right moving component to slide in the horizontal direction under the drive of the driving component.

[0012] Optionally, the driving assembly includes: a screw rod, a slide, a motor, a motor base, a first connecting plate and a second connecting plate; The bottom of the motor base is fixedly connected to the bottom plate, and the first connecting plate and the second connecting plate are respectively installed vertically at both ends of the motor base, and the motor is installed on the second connecting plate; one end of the screw rod is rotatably connected to the first connecting plate, and the other end passes through the second connecting plate and is connected to the power output end of the motor; The slide and the lead screw cooperate with each other through threads, a groove is provided at the bottom of the slide, and a guide rail matching the groove is provided on the motor base. When the lead screw rotates under the drive of the motor, the slide slides horizontally on the motor base along the axial direction of the lead screw.

[0013] Optionally, the left-right moving assembly includes: a locking tongue, and a third connecting plate, a fourth connecting plate and a fifth connecting plate integrally formed; The fifth connecting plate is horizontally arranged and located between the third connecting plate and the fourth connecting plate; the bottom of the fifth connecting plate is fixedly connected to the slide, and a vertically arranged connecting block is installed on the top for matching and connecting with the horizontally arranged locking tongue; The third connecting plate and the fourth connecting plate are vertically arranged and are both located on the outside of the connecting frame; the third connecting plate and the fourth connecting plate are symmetrically provided with inclined surface features, and when the fifth connecting plate slides horizontally under the drive of the slide, the up and down moving component slides vertically along the inclined surface features in the first sliding space.

[0014] Optionally, a sinking groove for the lock tongue to slide horizontally is provided at the bottom of the main control board, and an end of the lock tongue close to the up-and-down moving component is provided with an inclined surface.

[0015] Optionally, the up-and-down moving assembly includes: a spring, a spring base, a waterproof glue and a waterproof base; One end of the spring is connected to the spring base, and the other end is connected to the waterproof base; the waterproof glue is installed on the waterproof base, and the outer contours of the waterproof base and the waterproof glue are both adapted to the through groove; an abutment portion is respectively provided at both ends of the spring base for abutting against the inclined feature portion and being slidably connected with the inclined feature portion.

[0016] Optionally, before the locking action is initiated, the abutment portion in the up-and-down moving component is connected to the upper end of the slope corresponding to the slope feature portion in the left-and-right moving component.

[0017] Optionally, the processing process corresponding to the lock action includes: After the lock buckle passes through the through slot and presses the waterproof glue downward, the spring is compressed; when the iron piece moves to within the preset detection range of the proximity switch body, the proximity switch body transmits the corresponding in-place detection signal to the controller; the controller transmits the corresponding generated locking control instruction to the motor according to the in-place detection signal; the motor responds to the locking control instruction and drives the left and right moving components installed on the slide to slide in the direction close to the lock buckle until the abutting portion slides to the lower end of the inclined surface corresponding to the inclined surface feature portion, and the lock tongue in the left and right moving components limits the lock buckle in the vertical direction, and the locking action is completed.

[0018] Optionally, the processing process corresponding to the unlocking action includes: After receiving the unlocking control command input by the operator, the human-computer interaction unit transmits the unlocking control command to the controller; the controller transmits the unlocking control command to the motor; the motor responds to the unlocking control command and drives the left and right moving components installed on the slide to slide in the direction away from the lock buckle until the abutting portion slides to the upper end of the inclined surface corresponding to the inclined surface feature portion, and the lock tongue in the left and right moving components releases the limit on the lock buckle in the vertical direction, and the unlocking action is completed.

[0019] Optionally, after the unlocking action is completed, the door panel is flipped over, the pressing state of the lock buckle on the waterproof glue is released, the spring is released, and the waterproof glue and the waterproof base rise to the through groove opened on the main control board under the action of the spring to form a sealed and waterproof state.

[0020] On the other hand, the present invention further provides a roller pump type high pressure injector door lock control method applicable to the roller pump type high pressure injector door lock control system as described in the first aspect, comprising: receiving an in-place detection signal, and generating a locking control instruction according to the in-place detection signal; According to the locking control instruction, the lock body assembly is controlled to perform a corresponding locking action; After the locking action is completed, an unlocking control instruction is received, and then the lock body assembly is controlled to perform a corresponding unlocking action according to the unlocking control instruction.

[0021] Optionally, the processing process corresponding to the lock action includes: After the lock buckle passes through the through slot and presses the waterproof glue downward, the spring is compressed; when the iron piece moves to within the preset detection range of the proximity switch body, the proximity switch body transmits the corresponding in-place detection signal to the controller; the controller transmits the corresponding generated locking control instruction to the motor according to the in-place detection signal; the motor responds to the locking control instruction and drives the left and right moving components installed on the slide to slide in the direction close to the lock buckle until the abutting portion slides to the lower end of the inclined surface corresponding to the inclined surface feature portion, and the lock tongue in the left and right moving components limits the lock buckle in the vertical direction, and the locking action is completed.

[0022] Optionally, the processing process corresponding to the unlocking action includes: After receiving the unlocking control command input by the operator, the human-computer interaction unit transmits the unlocking control command to the controller; the controller transmits the unlocking control command to the motor; the motor responds to the unlocking control command and drives the left and right moving components installed on the slide to slide in the direction away from the lock buckle until the abutting portion slides to the upper end of the inclined surface corresponding to the inclined surface feature portion, and the lock tongue in the left and right moving components releases the limit on the lock buckle in the vertical direction, and the unlocking action is completed.

[0023] Compared with the prior art, the present invention has the following beneficial effects: (1) The locking and unlocking actions of the present invention are both realized by motor drive, and the whole process is highly automated. At the same time, the controller generates control instructions according to the in-position detection signal of the proximity switch body, realizing intelligent door lock control, which not only improves the response speed and accuracy of the door lock, but also enhances its ability to adapt to different environments and working conditions; (2) During the locking process, the lock tongue of the present invention realizes the vertical position limitation of the lock buckle by sliding the left and right moving components, thereby ensuring the firmness of the door lock. During the unlocking process, the lock tongue releases the position limitation of the lock buckle by sliding, thereby realizing a smooth unlocking action, which not only effectively improves the safety of the door lock, but also reduces the failure rate. (3) After the unlocking action is completed, the door panel can be flipped to release the pressure of the lock on the waterproof glue. At this time, the spring releases energy, pushing the waterproof glue and the waterproof base up to the groove to form a sealed waterproof, which not only effectively prevents the intrusion of moisture and pollutants, but also extends the service life of the door lock; (4) The present invention also places the lock body assembly under the main control board through an ingenious structural design, which not only effectively avoids the problem of pipe entanglement in traditional designs and improves the reliability and stability of the system, but also the design without protrusions on the main control board effectively reduces the risk of damage caused by accidental bumps during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The figure shows the overall structure of the door lock control system for the roller pump type high pressure injector of the present invention; Figure 2 Another overall structural schematic diagram of the door lock control system for a roller pump type high-pressure injector of the present invention is shown; Figure 3 It is a schematic diagram of the structure of the main control board in the door lock control system for the roller pump type high-pressure injector of the present invention; Figure 4 The figure shows a schematic structural diagram of the door lock control system for the roller pump type high pressure injector in the unlocked state of the present invention; Figure 5 The figure shows a cross-sectional view of the door lock control system for the roller pump type high-pressure injector of the present invention in the unlocked state; Figure 6 The figure shows the structure of the door lock control system for the roller pump type high pressure injector in the locked state of the present invention; Figure 7 The figure shows a schematic structural diagram of a connection frame in a door lock control system for a roller pump type high pressure injector of the present invention; Figure 8 The figure shows the structure schematic diagram of the driving assembly in the door lock control system for the roller pump type high-pressure injector of the present invention; Fig. 9 Shown Figure 8 A schematic diagram of the structure of the slide in the drive assembly; Fig.10 It is a schematic structural diagram of the left-right moving components in the door lock control system for the roller pump type high-pressure injector of the present invention; In the figure: 1-door panel; 2-main control panel; 3-lock assembly; 4-lock body assembly; 5-through slot; 6-proximity switch body; 7-iron piece; 8-lock; 9-first lock pad; 10-second lock pad; 11-bottom plate; 12-connecting frame; 13-partition plate; 14-first sliding space; 15-second sliding space; 16-screw rod; 17-slide table; 18-motor; 19-motor base; 20-first connecting plate; 21- The second connecting plate; 22-groove; 23-guide rail; 24-locking tongue; 25-third connecting plate; 26-fourth connecting plate; 27-fifth connecting plate; 28-connecting block; 29-inclined feature portion; 30-sunk groove; 31-spring; 32-spring base; 33-waterproof glue; 34-waterproof base; 35-abutting portion; 36-hinge; 37-bearing; 38-first mounting hole; 39-second mounting hole; 40-nut. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0026] Example 1 refer to Figure 1 and Figure 3 , This embodiment introduces a door lock control system for a roller pump type high-pressure injector, which includes: a door panel 1, a main control panel 2, a lock assembly 3, a lock body assembly 4, an in-place detection assembly, a human-machine interaction unit and a controller; One side of the door panel 1 is rotatably connected to the main control panel 2 for opening and closing; the lock assembly 3 is installed on the other side of the door panel 1 and is adapted to the lock body assembly 4 installed at the bottom of the main control panel 2; the main control panel 2 is also provided with a through groove 5 adapted to the outer contour of the lock assembly 3; The in-place detection component is used to detect the relative position of the door panel 1 and the main control panel 2. When the door panel 1 reaches the preset detection range, the corresponding in-place detection signal is transmitted to the controller, and the controller generates a lock control instruction according to the in-place detection signal; the human-computer interaction unit is used to receive the unlock control instruction input by the operator and transmit the unlock control instruction to the controller; The controller is electrically connected to the in-place detection component and the human-machine interaction unit, respectively, and is used to control the lock body component 4 to perform corresponding locking actions or unlocking actions according to locking control instructions or unlocking control instructions.

[0027] In the actual application of this embodiment, when the door panel 1 is closed and reaches the predetermined position, the in-place detection component detects this state and generates an in-place detection signal. After receiving this signal, the controller immediately sends a lock control instruction to the lock body component 4, and the lock body component 4 immediately performs a locking action to ensure that the door panel 1 is firmly closed. To unlock, the operator inputs an unlocking control instruction through the human-computer interaction unit. After this instruction is transmitted to the controller, the controller sends an unlocking control instruction to the lock body component 4, and the lock body component 4 performs an unlocking action, thereby allowing the door panel 1 to be opened. In general, the main control panel of the door lock control system provided in this embodiment has no protrusions, a simple appearance, no entanglement in the pipeline, and no risk of collision, which effectively ensures safety issues, and the use of automated intelligent control switch locks also significantly improves the overall operating efficiency of the equipment to a certain extent.

[0028] Example 2 Based on Example 1, this example will introduce the structural composition and function implementation process of the door lock control system in detail, as described below.

[0029] refer to Figure 1, the in-place detection component includes: a proximity switch body 6 and an iron component 7. Among them, the iron component 7 is firmly mounted on the door panel 1, and the proximity switch body 6 is installed at the position of the main control board 2, and ensures that an electrical connection is established between the proximity switch body 6 and the controller. Once the iron component 7 on the door panel 1 moves to the preset sensing range of the proximity switch body 6, the proximity switch body 6 will be immediately triggered and generate an in-place detection signal. Subsequently, this in-place detection signal will be quickly transmitted to the controller to complete the corresponding signal feedback process.

[0030] refer to Figure 2 The lock assembly 3 is mainly composed of a lock 8, a first lock washer 9 and a second lock washer 10. The lock 8 is designed in a "U" shape, and its open end penetrates the first lock washer 9, the door panel 1 and the second lock washer 10 in sequence, and finally realizes a stable assembly connection with the door panel 1 through a nut 40.

[0031] The lock body assembly 4 is a complex unit that integrates the functions of connection, driving, left-right movement, and up-down movement. Specifically, it includes the following core components: refer to Figure 4 and Figure 7 , the connecting component is composed of a bottom plate 11 and a connecting frame 12. The bottom of the connecting frame 12 is firmly fixed on the bottom plate 11, and the top is closely connected to the main control board 2. On both sides of the vertical partition 13 of the connecting frame 12, two sliding spaces are cleverly designed, namely the first sliding space 14 and the second sliding space 15. The first sliding space 14 is specially designed for the vertical sliding of the up and down moving components, and the second sliding space 15 is used to accommodate the left and right moving components, and realizes horizontal sliding under the push of the driving component.

[0032] refer to Figure 8 and Fig. 9 , drive assembly, the core of which includes a screw 16, a slide 17, a motor 18, a motor base 19, and a first connecting plate 20 and a second connecting plate 21. The motor base 19 is firmly mounted on the base plate 11, and its two ends respectively support the vertical first connecting plate 20 and the second connecting plate 21, and the motor 18 is mounted on the second connecting plate 21. One end of the screw 16 is rotatably connected to the first connecting plate 20 through a bearing 37, and the other end passes through the second connecting plate 21 and is connected to the power output end of the motor 18. The slide 17 cooperates with the screw 16 through a thread, and a groove 22 is designed at the bottom thereof, which matches the guide rail 23 on the motor base 19. When the motor 18 is started and drives the screw 16 to rotate, the slide 17 can slide horizontally on the motor base 19 along the axial direction of the screw 16.

[0033] refer to Fig.10, the left and right moving assembly is composed of a lock tongue 24 and an integrally formed third connecting plate 25, a fourth connecting plate 26 and a fifth connecting plate 27. The fifth connecting plate 27 is horizontally arranged and located between the third connecting plate 25 and the fourth connecting plate 26. The first mounting hole 38 provided on the fifth connecting plate 27 is connected to the second mounting hole 39 provided on the slide 17 by screws. A vertically arranged connecting block 28 is also installed on the top of the fifth connecting plate for connecting with the lock tongue 24. The third connecting plate 25 and the fourth connecting plate 26 are vertically arranged and located outside the connecting frame 12, and symmetrically provided with a bevel feature portion 29. When the fifth connecting plate 27 slides horizontally with the slide 17, the up and down moving assembly will realize vertical sliding along the bevel feature portion 29 in the first sliding space 14. A sinking groove 30 for horizontal sliding of the lock tongue 24 is also provided at the bottom of the main control board 2, and the end of the lock tongue 24 close to the up and down moving assembly is designed as a bevel to facilitate sliding cooperation.

[0034] The up-and-down moving assembly is composed of a spring 31, a spring base 32, a waterproof glue 33 and a waterproof base 34. One end of the spring 31 is connected to the spring base 32, and the other end is connected to the waterproof base 34. The waterproof glue 33 is installed on the waterproof base 32, and the outer contours of the waterproof base 34 and the waterproof glue 33 are adapted to the through groove 5. The abutment portions 35 provided at both ends of the spring base 32 are used to abut against the inclined surface feature portion 29 and be slidably connected thereto. This design enables the up-and-down moving assembly to achieve smooth vertical sliding along the inclined surface feature portion 29 driven by the left-and-right moving assembly, while ensuring the waterproof performance and stability of the assembly.

[0035] like Figures 4 to 6 As shown, in the actual application of this embodiment, the processing flow of the locking action and the unlocking action is a process of mechanical and electronic cooperation, and the specific details are as follows: At the beginning of the locking action, the lock buckle 8 first passes through the through slot 5 and continues to move downward, pressing the waterproof glue 33. This action causes the spring 31 to be compressed, storing potential energy for subsequent mechanical movement. At the same time, the iron piece 7 gradually enters the preset detection range of the proximity switch body 6 as the door panel moves. Once the iron piece 7 is detected by the proximity switch body 6, the proximity switch body 6 immediately generates an in-place detection signal and quickly transmits the signal to the controller. After receiving the in-place detection signal, the controller immediately analyzes and processes it and generates a corresponding locking control instruction. This instruction is then transmitted to the motor 18 as a basis for starting and running the motor.

[0036] Next, the motor 18 responds to the lock control command and starts to drive the left and right moving components on the slide 17 to slide. This sliding action is performed in the direction close to the lock buckle 8, and the purpose is to position the lock tongue 24 just above the lock buckle 8. As the sliding proceeds, the abutment portion 35 gradually slides down along the inclined surface of the inclined surface feature portion 29 until it reaches the lower end of the inclined surface. When the abutment portion 35 slides to the lower end of the inclined surface, the lock tongue 24 in the left and right moving components forms an effective limit to the lock buckle 8 in the vertical direction. At this time, the lock buckle 8 is firmly locked and cannot be moved at will, thereby realizing the closing function of the door lock.

[0037] It is worth noting that, during the sliding of the left and right moving assembly, the spring base 32 moves downward with it, so that part of the elastic force of the previously compressed spring 31 is released. This design not only helps to maintain the stability of the mechanical structure, but also avoids fatigue and damage that may be caused by the spring 31 being in a compressed state for a long time.

[0038] Furthermore, if the operator needs to unlock the door, they will input the unlock control command on the human-machine interaction unit (such as a touch screen, button, etc.). After the command is accurately captured by the human-machine interaction unit, it will be immediately encoded and transmitted to the controller. After receiving the unlock control command, the controller will quickly decode and analyze it and generate the corresponding unlock control signal.

[0039] Subsequently, the unlocking control signal is transmitted to the motor 18 as the basis for the motor to start and run. In response to the instructions of the controller, the motor 18 starts to drive the left and right moving components on the slide 17 to slide. Contrary to the locking action, this sliding is performed in the direction away from the lock buckle 8.

[0040] During the sliding process, the abutment portion 35 gradually rises along the inclined surface of the inclined surface feature portion 29 until it reaches the upper end of the inclined surface. As the position of the abutment portion 35 changes, the lock tongue 24 in the left and right moving assembly also moves accordingly, thereby releasing the vertical limit of the lock catch 8. At this time, the lock catch 8 is no longer locked and can be freely moved out of the through slot 5, and the door lock opening function is realized.

[0041] It is worth noting that after the unlocking action is completed, the operator usually turns over the door panel 1 to open the passage. This action causes the lock buckle 8 to release the pressing state of the waterproof glue 33, and the spring 31 that was previously compressed due to the locking action begins to release its stored potential energy. Under the push of the spring 31, the waterproof glue 33 and the waterproof base 34 quickly rise to the through groove 5 opened on the main control board 2, forming a tightly sealed waterproof structure. This design not only ensures the waterproof performance of the door lock in the open state, but also effectively prevents impurities such as dust and moisture from entering the interior of the door lock, thereby extending the service life of the door lock.

[0042] Example 3 refer to Figures 1 to 10 Based on the same technical concept, this embodiment provides a roller pump type high pressure syringe door lock control method applicable to the roller pump type high pressure syringe door lock control system as described in embodiment 1 or 2. The method covers the whole process from receiving the in-place detection to executing the locking and unlocking actions. The specific process is as follows: First, the controller of the system can sensitively receive the in-place detection signal, which comes from the accurate perception of the position of the iron piece 7 by the proximity switch body 6. Once the iron piece 7 enters the preset detection area of ​​the proximity switch body 6, the proximity switch will instantly generate an in-place detection signal and send it to the controller. The controller, as a central processing unit, quickly calculates the locking control instruction based on the received in-place detection signal and transmits this instruction to the motor 18.

[0043] The motor 18 responds to the controller's command, starts and drives the left-right moving assembly on the slide 17 to start moving. Driven by the motor, the assembly approaches the lock buckle 8 along a preset path until the abutment portion 35 slides to the lower end of its slope along the inclined surface feature portion 29. At this time, the lock tongue 24 in the left-right moving assembly is aligned with and locks the lock buckle 8, achieving a stable limit in the vertical direction, indicating the completion of the locking action.

[0044] When unlocking is required, the operator inputs the unlocking control command through the human-machine interaction unit. The human-machine interaction unit quickly captures the command and transmits it to the controller. The controller then interprets the command, generates a corresponding unlocking control signal, and sends it to the motor 18.

[0045] The motor 18 is started again, but this time it drives the left and right moving assembly to move away from the lock buckle 8. As the abutment portion 35 slides along the inclined surface feature portion 29 to the upper end of its inclined surface, the lock tongue 24 gradually releases the limit on the lock buckle 8. When the lock tongue 24 completely disengages from the lock buckle 8, the unlocking action is completed.

[0046] To sum up, the door lock control method for roller pump high-pressure syringes provided in this embodiment realizes the fast and reliable locking and unlocking functions of the door lock system through precise positioning detection, efficient motor drive and ingenious mechanical structure design, providing users with a convenient and safe operation experience.

[0047] In the description of the present disclosure / application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only used to explain the relative positional relationship, movement, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly. It is only for the convenience of describing the present disclosure / 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 to the present disclosure / application.

[0048] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the feature. In the description of this disclosure / application, unless otherwise specified, "plurality" means two or more.

[0049] In the description of this disclosure / application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this disclosure / application can be understood according to specific circumstances.

[0050] The above is only a preferred implementation of the present disclosure / application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present disclosure / application, and these improvements and modifications should also be regarded as the scope of protection of the present disclosure / application.

Claims

1. A door lock control system for a roller pump type high pressure injector, characterized in that: include: Door panel (1), main control panel (2), lock assembly (3), lock body assembly (4), in-place detection assembly, human-machine interaction unit and controller; One side of the door panel (1) is rotatably connected to the main control panel (2); a lock assembly (3) is mounted on the other side of the door panel (1) and is matched with a lock body assembly (4) mounted on the bottom of the main control panel (2); a through groove (5) matched with the outer contour of the lock assembly (3) is also provided on the main control panel (2); An in-place detection component is used to detect the relative position of the door panel (1) and the main control panel (2); when the door panel (1) reaches a preset detection range, an in-place detection signal is generated and transmitted to the controller, and the controller generates a locking control instruction based on the in-place detection signal; a human-machine interaction unit is used to receive an unlocking control instruction input by an operator and transmit the unlocking control instruction to the controller; The controller is electrically connected to the in-place detection component and the human-machine interaction unit respectively, and is used to control the lock body component (4) to perform a corresponding locking action or unlocking action according to a locking control instruction or an unlocking control instruction.

2. The door lock control system for a roller pump type high-pressure injector according to claim 1, characterized in that: The in-position detection component comprises: a proximity switch body (6) and an iron piece (7); the iron piece (7) is mounted on the door panel (1), the proximity switch body (6) is mounted on the main control board (2), and the proximity switch body (6) is electrically connected to the controller; When the iron piece (7) mounted on the door panel (1) moves into a preset detection range of the proximity switch body (6), the proximity switch body (6) generates an in-position detection signal and transmits the in-position detection signal to the controller.

3. The door lock control system for a roller pump type high-pressure injector according to claim 2, characterized in that: The lock assembly (3) comprises: a lock (8), a first lock washer (9) and a second lock washer (10); the lock (8) is in a "U" shape, and its open end passes through the first lock washer (9), the door panel (1) and the second lock washer (10) in sequence, and is fixedly connected to the door panel (1) via a nut (40).

4. The door lock control system for a roller pump type high-pressure injector according to claim 3, characterized in that: The lock body assembly (4) comprises: a connecting assembly, a driving assembly, a left-right moving assembly and an up-and-down moving assembly; The connection assembly comprises: a bottom plate (11) and a connection frame (12); the bottom of the connection frame (12) is fixedly connected to the bottom plate (11), and the top is fixedly connected to the main control board (2); the connection frame (12) is further provided with two sliding spaces on both sides of the vertical partition (13), namely a first sliding space (14) and a second sliding space (15); The first sliding space (14) is used for the up-and-down moving component to slide in the vertical direction; and the second sliding space (15) is used for the left-and-right moving component to slide in the horizontal direction under the drive of the driving component.

5. The door lock control system for a roller pump type high-pressure injector according to claim 4, characterized in that: The driving assembly comprises: a screw rod (16), a slide table (17), a motor (18), a motor base (19), a first connecting plate (20) and a second connecting plate (21); The bottom of the motor base (19) is fixedly connected to the bottom plate (11), and the first connecting plate (20) and the second connecting plate (21) are respectively installed vertically at both ends of the motor base (19), and the motor (18) is installed on the second connecting plate (21); one end of the screw rod (16) is rotatably connected to the first connecting plate (20), and the other end passes through the second connecting plate (21) and is connected to the power output end of the motor (18); The slide (17) and the lead screw (16) cooperate with each other via threads; a groove (22) is provided at the bottom of the slide (17); a guide rail (23) matching the groove (22) is provided on the motor base (19); when the lead screw (16) rotates under the drive of the motor (18), the slide (17) slides horizontally on the motor base (19) along the axial direction of the lead screw (16).

6. The door lock control system for a roller pump type high-pressure injector according to claim 5, characterized in that: The left-right moving assembly comprises: a locking tongue (24), and a third connecting plate (25), a fourth connecting plate (26), and a fifth connecting plate (27) which are integrally formed; The fifth connecting plate (27) is arranged horizontally and is located between the third connecting plate (25) and the fourth connecting plate (26); the bottom of the fifth connecting plate (27) is fixedly connected to the slide table (17), and a vertically arranged connecting block (28) is installed on the top for matching and connecting with the horizontally arranged locking tongue (24); The third connecting plate (25) and the fourth connecting plate (26) are arranged vertically and are both located outside the connecting frame (12); the third connecting plate (25) and the fourth connecting plate (26) are symmetrically provided with inclined surface feature portions (29); when the fifth connecting plate (27) slides horizontally under the drive of the slide table (17), the up-and-down moving assembly slides vertically along the inclined surface feature portions (29) in the first sliding space (14); The bottom of the main control board (2) is also provided with a sinking groove (30) for the locking tongue (24) to slide horizontally, and one end of the locking tongue (24) close to the up-and-down moving component is provided with an inclined surface.

7. The door lock control system for a roller pump type high-pressure injector according to claim 6, characterized in that: The up-and-down moving assembly comprises: a spring (31), a spring base (32), a waterproof glue (33) and a waterproof base (34); One end of the spring (31) is connected to the spring base (32), and the other end is connected to the waterproof base (34); the waterproof glue (33) is installed on the waterproof base (32), and the outer contours of the waterproof base (34) and the waterproof glue (33) are both compatible with the through groove (5); and an abutment portion (35) is respectively provided at both ends of the spring base (32) for abutting against the inclined surface feature portion (29) and being slidably connected to the inclined surface feature portion (29).

8. The door lock control system for a roller pump type high-pressure injector according to claim 7, characterized in that: Before the locking action is initiated, the abutment portion (35) in the up-and-down moving component is connected to the upper sloped surface corresponding to the sloped surface feature portion (29) in the left-and-right moving component; The processing process corresponding to the locking action includes: After the lock buckle (8) passes through the through groove (5) and presses the waterproof glue (33) downward, the spring (31) is compressed; when the iron piece (7) moves to within the preset detection range of the proximity switch body (6), the proximity switch body (6) transmits the corresponding generated in-place detection signal to the controller; the controller transmits the corresponding generated locking control instruction to the motor (18) according to the in-place detection signal; the motor (18) responds to the locking control instruction and drives the left-right moving assembly installed on the slide (17) to slide in the direction close to the lock buckle (8) until the abutting portion (35) slides to the lower end of the inclined surface corresponding to the inclined surface feature portion (29), and the lock tongue (24) in the left-right moving assembly limits the lock buckle (8) in the vertical direction, and the locking action is completed.

9. The door lock control system for a roller pump type high-pressure injector according to claim 7, characterized in that: The processing process corresponding to the unlocking action includes: After receiving the unlocking control command input by the operator, the human-machine interaction unit transmits the unlocking control command to the controller; the controller transmits the unlocking control command to the motor (18); the motor (18) responds to the unlocking control command and drives the left-right moving assembly mounted on the slide (17) to slide in a direction away from the lock buckle (8) until the abutting portion (35) slides to the upper end of the inclined surface corresponding to the inclined surface feature portion (29), and the lock tongue (24) in the left-right moving assembly releases the limit on the lock buckle (8) in the vertical direction, and the unlocking action is completed; After the unlocking action is completed, the door panel (1) is turned over, the pressing state of the lock buckle (8) on the waterproof glue (33) is released, the spring (31) is released, and the waterproof glue (33) and the waterproof base (34) rise to the through groove (5) opened on the main control board (2) under the action of the spring (31) to form a sealed and waterproof state.

10. A roller pump type high pressure injector door lock control method applicable to the roller pump type high pressure injector door lock control system as claimed in claim 7, characterized in that: include: receiving an in-place detection signal, and generating a locking control instruction according to the in-place detection signal; According to the locking control instruction, controlling the lock body component (4) to perform a corresponding locking action; After the locking action is completed, an unlocking control instruction is received, and then the lock body component (4) is controlled to perform a corresponding unlocking action according to the unlocking control instruction; The processing process corresponding to the locking action includes: After the lock buckle (8) passes through the through slot (5), it presses the waterproof glue (33) downward, and the spring (31) is compressed; when the iron piece (7) moves to within the preset detection range of the proximity switch body (6), the proximity switch body (6) transmits the corresponding generated in-place detection signal to the controller; the controller transmits the corresponding generated lock control command to the motor (18) according to the in-place detection signal; the motor (18) responds to the lock control command and drives the left and right moving components installed on the slide (17) to slide in the direction close to the lock buckle (8) until the abutting portion (35) slides to the lower end of the inclined surface corresponding to the inclined surface feature portion (29), and the lock tongue (24) in the left and right moving components realizes the vertical limit of the lock buckle (8), and the lock action is completed; The processing process corresponding to the unlocking action includes: After receiving the unlocking control command input by the operator, the human-machine interaction unit transmits the unlocking control command to the controller; the controller transmits the unlocking control command to the motor (18); the motor (18) responds to the unlocking control command and drives the left-right moving assembly mounted on the slide (17) to slide in a direction away from the lock buckle (8) until the abutting portion (35) slides to the upper end of the inclined surface corresponding to the inclined surface feature portion (29), and the lock tongue (24) in the left-right moving assembly releases the limit on the lock buckle (8) in the vertical direction, and the unlocking action is completed.

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