A door lock control system and method for a roller pump type high-pressure injector

Abstract

This invention discloses a door lock control system and method for a roller pump-type high-pressure injector, belonging to the field of medical device technology. The control system includes: a door panel, a main control board, a latch assembly, a lock body assembly, a position detection assembly, a human-machine interface unit, and a controller. The door panel is rotatably connected to the main control board to achieve opening and closing; the latch assembly is mounted on the door panel and is adapted to the lock body assembly at the bottom of the main control board. The main control board has a through groove matching the contour of the latch. The position detection assembly detects the position of the door panel; once the door panel is closed, it sends a signal to the controller, triggering a locking command. The human-machine interface unit receives the unlocking command and transmits it to the controller. Based on the received command, the controller controls the lock body assembly to perform the corresponding locking or unlocking actions via electrical connection. The door lock control system provided by this invention has a simple appearance, avoiding the risks of tubing entanglement and impact, ensuring safety; at the same time, by adopting automated intelligent control, the operational efficiency of opening and closing the lock is significantly improved.

Description

Technical Field

[0001] This invention relates to a door lock control system and method for a roller pump type high-pressure injector, belonging to the field of medical device technology. Background Technology

[0002] In medical diagnostic and treatment procedures, roller pump high-pressure injectors play a crucial role as key equipment for injecting contrast agents or other drugs into patients. Especially when performing high-precision medical examinations such as computed tomography (CT), ultrasound, and magnetic resonance imaging (MRI), their stability and reliability directly affect diagnostic accuracy and patient safety.

[0003] The operating principle of a roller pump-type high-pressure injector requires that the roller pump and tubing operate within a closed internal space to ensure operational safety and accurate pressure monitoring. The gate, as a key component within this closed space, not only provides safety protection but also works in conjunction with the pressure sensor on the main unit to monitor pressure changes within the tubing in real time, ensuring a smooth injection process. Furthermore, the gate and the mechanisms on the main unit must work together to enable the function of the saline and contrast agent switching tubing valve.

[0004] However, existing roller pump-type high-pressure injector door lock mechanisms have significant design flaws. Firstly, some lock mechanisms are manually operated, which is not only labor-intensive and has a low degree of automation, but is also easily overlooked by medical staff, increasing the risk of operational errors. Secondly, some lock mechanisms use a rotating locking method with a protruding, irregularly shaped structure on the main unit. This design is not only aesthetically pleasing, but more importantly, the protruding structure can easily become entangled in the tubing during installation and disassembly, disrupting the tense and orderly work rhythm of medical staff and potentially causing injury. Furthermore, this design increases the difficulty of cleaning and reduces work efficiency.

[0005] Therefore, there is an urgent need to provide a new type of door lock control system that is safer, more efficient, more convenient and more automated, in order to solve the related technical defects faced by the existing technology. Summary of the Invention

[0006] The purpose of this invention is to provide a door lock control system and method for a roller pump type high-pressure injector, which aims to improve the overall safety and ease of operation of the equipment through structural layout optimization and intelligent and precise control.

[0007] To solve the above-mentioned technical problems, the present invention is implemented using the following technical solution:

[0008] On 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 board, a latch assembly, a lock body assembly, a position detection assembly, a human-machine interaction unit, and a controller;

[0009] One side of the door panel is rotatably connected to the main control board; the latch 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 board; the main control board also has a through groove adapted to the outer contour of the latch assembly.

[0010] The positioning detection component is used to detect the relative position of the door panel (1) and the main control board. When the door panel reaches the preset detection range, a positioning detection signal is generated and transmitted to the controller. The controller generates a locking control command based on the positioning detection signal. The human-machine interaction unit is used to receive the unlocking control command input by the operator and transmit the unlocking control command to the controller.

[0011] The controller is electrically connected to the position detection component and the human-machine interaction unit, respectively, and is used to control the lock body components to perform corresponding locking or unlocking actions according to the locking control command or unlocking control command.

[0012] Optionally, the arrival detection component includes: a proximity switch body and an iron component; the iron component 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;

[0013] When the iron piece installed on the door panel moves into the preset detection range of the proximity switch body, the proximity switch body generates an arrival detection signal and transmits the arrival detection signal to the controller.

[0014] Optionally, the latch assembly includes: a latch, a first latch pad, and a second latch pad; the latch is U-shaped, with its open end passing through the first latch pad, the door panel, and the second latch pad in sequence, and is fixedly connected to the door panel by a nut.

[0015] Optionally, the lock body assembly includes: a connecting component, a driving component, a left-right moving component, and a up-down moving component;

[0016] The connecting component 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 a first sliding space and a second sliding space.

[0017] Optionally, the first sliding space is used for the vertical moving component to slide in the vertical direction; the second sliding space is used for the horizontal moving component to slide in the horizontal direction under the drive of the driving component.

[0018] Optionally, the drive assembly includes: a lead screw, a slide table, a motor, a motor base, a first connecting plate, and a second connecting plate;

[0019] The bottom of the motor base is fixedly connected to the base plate, and the two ends of the motor base are respectively equipped with a vertically arranged first connecting plate and a second connecting plate. The motor is mounted on the second connecting plate. One end of the lead screw 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.

[0020] The slide and the lead screw are connected by threads. The bottom of the slide has a groove, and the motor base is provided with a guide rail that matches the groove. 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.

[0021] Optionally, the left and right moving component includes: a locking tongue, and a third connecting plate, a fourth connecting plate, and a fifth connecting plate integrally formed;

[0022] 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 table, and a vertically arranged connecting block is installed on the top for cooperating with the horizontally arranged locking tongue.

[0023] The third and fourth connecting plates are vertically arranged and are both located on the outside of the connecting frame. The third and fourth connecting plates are symmetrically provided with inclined surface features. When the fifth connecting plate slides horizontally under the drive of the slide table, the up-down moving component slides vertically along the inclined surface features within the first sliding space.

[0024] Optionally, the bottom of the main control board is provided with a recessed groove for the bolt to slide horizontally, and the end of the bolt near the up-down moving component is set with an inclined surface.

[0025] Optionally, the up-and-down moving assembly includes: a spring, a spring base, waterproof adhesive, and a waterproof base;

[0026] One end of the spring is connected to the spring base, and the other end is connected to the waterproof base; the waterproof adhesive is installed on the waterproof base, and the outer contours of the waterproof base and the waterproof adhesive are adapted to the through groove; each end of the spring base is provided with an abutment portion for abutting against the inclined surface feature portion and slidingly connecting with the inclined surface feature portion.

[0027] Optionally, before the locking action is initiated, the abutting part in the up-down moving component is connected to the upper end of the inclined surface corresponding to the inclined surface feature part in the left-right moving component.

[0028] Optionally, the processing procedure corresponding to the locking action includes:

[0029] After the latch passes through the through groove, it presses down on the waterproof adhesive, and the spring is compressed. When the iron piece moves into the preset detection range of the proximity switch body, the proximity switch body transmits the corresponding generated position detection signal to the controller. The controller transmits the corresponding generated locking control command to the motor according to the position detection signal. The motor responds to the locking control command and drives the left and right moving components mounted on the slide to slide towards the latch until the abutment part slides to the lower end of the inclined surface corresponding to the inclined surface feature part. The locking tongue in the left and right moving components limits the latch in the vertical direction, and the locking action is completed.

[0030] Optionally, the processing steps corresponding to the unlocking action include:

[0031] 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; the motor responds to the unlocking control command and drives the left and right moving component mounted on the slide to slide away from the latch until the abutment part slides to the upper end of the inclined surface corresponding to the inclined surface feature part, the latch in the left and right moving component releases its vertical restriction on the latch, and the unlocking action is completed.

[0032] Optionally, after the unlocking action is completed, the door panel is flipped over, the pressure of the latch on the waterproof adhesive is released, the spring is released, and the waterproof adhesive and waterproof base rise into the through groove opened on the main control board under the action of the spring to form a sealed waterproof seal.

[0033] On the other hand, the present invention also provides a door lock control method for a roller pump type high-pressure injector applicable to a door lock control system as described in the first aspect, comprising:

[0034] Upon receiving the bit detection signal, an interlock control command is generated based on the bit detection signal.

[0035] According to the locking control command, the lock body assembly is controlled to perform the corresponding locking action;

[0036] After the locking action is completed, an unlocking control command is received, and then the lock body components are controlled to perform the corresponding unlocking action according to the unlocking control command.

[0037] Optionally, the processing procedure corresponding to the locking action includes:

[0038] After the latch passes through the through groove, it presses down on the waterproof adhesive, and the spring is compressed. When the iron piece moves into the preset detection range of the proximity switch body, the proximity switch body transmits the corresponding generated position detection signal to the controller. The controller transmits the corresponding generated locking control command to the motor according to the position detection signal. The motor responds to the locking control command and drives the left and right moving components mounted on the slide to slide towards the latch until the abutment part slides to the lower end of the inclined surface corresponding to the inclined surface feature part. The locking tongue in the left and right moving components limits the latch in the vertical direction, and the locking action is completed.

[0039] Optionally, the processing steps corresponding to the unlocking action include:

[0040] 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; the motor responds to the unlocking control command and drives the left and right moving component mounted on the slide to slide away from the latch until the abutment part slides to the upper end of the inclined surface corresponding to the inclined surface feature part, the latch in the left and right moving component releases its vertical restriction on the latch, and the unlocking action is completed.

[0041] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

[0042] (1) The locking and unlocking actions of the present invention are both achieved by motor drive, and the whole process is highly automated. At the same time, the controller generates control instructions based on the 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.

[0043] (2) During the locking process, the bolt in this invention limits the vertical direction of the latch by sliding the left and right moving components, ensuring the stability of the door lock. During the unlocking process, the bolt releases the limit on the latch by sliding, realizing a smooth unlocking action, which not only effectively improves the security of the door lock, but also reduces the failure rate.

[0044] (3) After the unlocking action is completed, flipping the door panel will release the pressure of the latch on the waterproof sealant. At this time, the spring releases energy and pushes the waterproof sealant and waterproof base to rise into the through groove to form a seal and waterproof, which not only effectively prevents the intrusion of water and pollutants, but also extends the service life of the door lock.

[0045] (4) The present invention also cleverly places the lock body assembly below the main control board through a structural design, which not only effectively avoids the problem of pipe entanglement in the traditional design and improves the reliability and stability of the system, but also the design of no protrusion on the main control board effectively reduces the risk of damage caused by accidental bumps during use. Attached Figure Description

[0046] Figure 1 The diagram shown is a schematic representation of the overall structure of the door lock control system for the roller pump type high-pressure injector of the present invention.

[0047] Figure 2 The diagram shown is another overall structural schematic of the door lock control system for the roller pump type high-pressure injector of the present invention.

[0048] Figure 3 The diagram shown is a schematic of the main control board in the door lock control system for the roller pump type high-pressure injector of the present invention.

[0049] Figure 4 The diagram shown is a schematic diagram of the door lock control system for the roller pump type high-pressure injector of the present invention in the unlocked state;

[0050] Figure 5 The figure shown is 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.

[0051] Figure 6 The diagram shown is a schematic diagram of the door lock control system for the roller pump type high-pressure injector of the present invention in the locked state.

[0052] Figure 7 The diagram shown is a schematic diagram of the connecting frame in the door lock control system for the roller pump type high-pressure injector of the present invention.

[0053] Figure 8 The diagram shown is a schematic representation of the drive assembly in the door lock control system for the roller pump type high-pressure injector of the present invention.

[0054] Figure 9 As shown Figure 8 A schematic diagram of the slide table in the drive assembly;

[0055] Figure 10 The diagram shown is a schematic representation of the left-right movement component in the door lock control system for the roller pump type high-pressure injector of the present invention.

[0056] In the diagram: 1-Door panel; 2-Main control board; 3-Lock assembly; 4-Lock body assembly; 5-Through groove; 6-Proximity switch body; 7-Iron piece; 8-Lock; 9-First lock pad; 10-Second lock pad; 11-Base plate; 12-Connecting frame; 13-Partition plate; 14-First sliding space; 15-Second sliding space; 16-Lead screw; 17-Slide table; 18-Motor; 19-Motor base; 20-First connecting plate; 21- 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-sloping feature; 30-sunken groove; 31-spring; 32-spring base; 33-waterproof adhesive; 34-waterproof base; 35-abutting part; 36-hinge; 37-bearing; 38-first mounting hole; 39-second mounting hole; 40-nut. Detailed Implementation

[0057] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0058] Example 1

[0059] 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: door panel 1, main control board 2, latch assembly 3, lock body assembly 4, position detection assembly, human-machine interaction unit and controller;

[0060] One side of the door panel 1 is rotatably connected to the main control board 2 to realize opening and closing; the latch 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 board 2; the main control board 2 also has a through groove 5 adapted to the outer contour of the latch assembly 3.

[0061] The positioning detection component is used to detect the relative position of the door panel 1 and the main control board 2. When the door panel 1 reaches the preset detection range, the corresponding positioning detection signal is transmitted to the controller. The controller generates a locking control command based on the positioning detection signal. The human-machine interaction unit is used to receive the unlocking control command input by the operator and transmit the unlocking control command to the controller.

[0062] The controller is electrically connected to the position detection component and the human-machine interaction unit, respectively, and is used to control the lock body component 4 to perform the corresponding locking or unlocking actions according to the locking control command or unlocking control command.

[0063] In practical application, when door panel 1 is closed and reaches a predetermined position, the positioning detection component detects this state and generates a positioning detection signal. Upon receiving this signal, the controller immediately sends a locking control command to lock body assembly 4, which then performs a locking action to ensure door panel 1 is securely closed. To unlock, the operator inputs an unlocking control command through the human-machine interface unit. This command is transmitted to the controller, which then sends an unlocking control command to lock body assembly 4. Lock body assembly 4 performs an unlocking action, allowing door panel 1 to be opened. In summary, the main control board of the door lock control system provided in this embodiment has no protrusions, a simple appearance, no tangled pipes, and no risk of impact, effectively ensuring security. Furthermore, the use of automated intelligent control for opening and closing the lock significantly improves the overall operating efficiency of the equipment.

[0064] Example 2

[0065] Based on Example 1, this example will describe in detail the structural composition and functional implementation process of the door lock control system, as follows.

[0066] refer to Figure 1 The positioning detection component includes a proximity switch body 6 and a metal component 7. The metal component 7 is securely mounted on the door panel 1, while the proximity switch body 6 is installed on the main control board 2, ensuring an electrical connection between the proximity switch body 6 and the controller. Once the metal component 7 on the door panel 1 moves into the preset sensing range of the proximity switch body 6, the proximity switch body 6 will immediately trigger and generate a positioning detection signal. Subsequently, this positioning detection signal will be quickly transmitted to the controller to complete the corresponding signal feedback process.

[0067] refer to Figure 2 The latch assembly 3 is mainly composed of latch 8, first locking pad 9 and second locking pad 10. The latch 8 is designed in the shape of "U", and its open port passes through the first locking pad 9, door panel 1 and second locking pad 10 in sequence, and finally achieves a stable assembly connection with the door panel 1 through nut 40.

[0068] Lock body assembly 4 is a complex unit integrating connection, drive, left-right movement, and up-down movement functions. Specifically, it includes the following core components:

[0069] refer to Figure 4 and Figure 7The connecting component consists of a base plate 11 and a connecting frame 12. The bottom of the connecting frame 12 is firmly fixed to the base plate 11, while its top is tightly connected to the main control board 2. Two sliding spaces are cleverly designed on both sides of the vertical partition 13 of the connecting frame 12: a first sliding space 14 and a second sliding space 15. The first sliding space 14 is specifically designed for the vertical sliding of the up-and-down moving component, while the second sliding space 15 is used to accommodate the left-and-right moving component, enabling horizontal sliding under the push of the drive component.

[0070] refer to Figure 8 and Figure 9 The drive assembly, at its core, includes a lead screw 16, a slide 17, a motor 18, a motor base 19, a first connecting plate 20, and a second connecting plate 21. The motor base 19 is securely mounted on a base plate 11, with the first connecting plate 20 and the second connecting plate 21 vertically supported at both ends. The motor 18 is mounted on the second connecting plate 21. One end of the lead screw 16 is rotatably connected to the first connecting plate 20 via 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 is threaded into the lead screw 16, and its bottom has a groove 22 that matches the guide rail 23 on the motor base 19. When the motor 18 starts and drives the lead screw 16 to rotate, the slide 17 can slide horizontally along the axial direction of the lead screw 16 on the motor base 19.

[0071] refer to Figure 10 The left-right moving component consists of a latch 24 and integrally formed third connecting plate 25, fourth connecting plate 26, and fifth connecting plate 27. The fifth connecting plate 27 is horizontally positioned between the third connecting plate 25 and the fourth connecting plate 26. A first mounting hole 38 on the fifth connecting plate 27 is connected to a second mounting hole 39 on the slide table 17 via screws. A vertically positioned connecting block 28 is also installed on the top of the fifth connecting plate for connection with the latch 24. The third connecting plate 25 and the fourth connecting plate 26 are vertically positioned outside the connecting frame 12 and symmetrically have inclined surface features 29. When the fifth connecting plate 27 slides horizontally with the slide table 17, the up-down moving component slides vertically along the inclined surface features 29 within the first sliding space 14. The bottom of the main control board 2 also has a recessed groove 30 for the horizontal sliding of the latch 24. The end of the latch 24 near the up-down moving component is designed with an inclined surface for easy sliding.

[0072] The vertical moving assembly consists of a spring 31, a spring base 32, a waterproof adhesive 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 adhesive 33 is installed on the waterproof base 32, and the outer contours of the waterproof base 34 and the waterproof adhesive 33 are adapted to the through groove 5. The abutment portions 35 at both ends of the spring base 32 are used to abut against the inclined feature portion 29 and slide therewith. This design allows the vertical moving assembly to slide smoothly vertically along the inclined feature portion 29 under the drive of the left and right moving assembly, while ensuring the waterproof performance and stability of the assembly.

[0073] like Figures 4 to 6 As shown, in practical applications, the locking and unlocking processes in this embodiment involve a combination of mechanical and electronic processes, as detailed below:

[0074] At the start of the locking action, the latch 8 first passes through the through slot 5 and continues to move downwards, pressing the waterproof sealant 33. This action causes the spring 31 to be compressed, storing potential energy for subsequent mechanical movement. Simultaneously, the metal piece 7, as the door panel moves, gradually enters the preset detection range of the proximity switch body 6. Once the metal piece 7 is detected by the proximity switch body 6, the proximity switch body 6 immediately generates a position detection signal and quickly transmits this signal to the controller. Upon receiving the position detection signal, the controller immediately analyzes and processes it, generating a corresponding locking control command. This command is then transmitted to the motor 18 as the basis for motor start-up and operation.

[0075] Next, motor 18 responds to the locking control command and begins to drive the left-right moving assembly on slide 17 to slide. This sliding action is performed towards the latch 8, with the aim of positioning the bolt 24 directly above the latch 8. As the sliding continues, the abutment 35 gradually slides down the slope of the inclined feature 29 until it reaches the lower end of the slope. When the abutment 35 slides to the lower end of the slope, the bolt 24 in the left-right moving assembly effectively limits the latch 8 in the vertical direction. At this point, the latch 8 is firmly locked and cannot move freely, thus realizing the door lock closing function.

[0076] It is worth noting that during the sliding of the left and right moving components, the spring base 32 moves downwards, releasing some of the elastic force of the previously compressed spring 31. This design not only helps maintain the stability of the mechanical structure but also avoids fatigue and damage that may result from the spring 31 being in a compressed state for a long time.

[0077] Furthermore, if operators need to unlock the door, they will input an unlocking control command on the human-machine interface (such as a touchscreen, buttons, etc.). Once this command is accurately captured by the human-machine interface, it will be immediately encoded and transmitted to the controller. Upon receiving the unlocking control command, the controller will quickly decode and analyze it, and generate the corresponding unlocking control signal.

[0078] Subsequently, this unlocking control signal is transmitted to motor 18 as the basis for motor start-up and operation. Motor 18 responds to the controller's command and begins to drive the left-right moving components on slide table 17 to slide. This sliding motion is the opposite of the locking action, moving away from the latch 8.

[0079] During the sliding process, the abutment part 35 gradually rises along the inclined surface of the inclined feature part 29 until it reaches the upper end of the inclined surface. As the position of the abutment part 35 changes, the latch 24 in the left and right moving assembly also moves accordingly, thereby releasing the vertical restriction on the latch 8. At this time, the latch 8 is no longer locked and can be freely moved out of the through slot 5, and the door lock opening function is realized.

[0080] It is worth noting that after the unlocking action is completed, the operator usually flips the door panel 1 to open the passage. This action releases the pressure of the latch 8 on the waterproof sealant 33, and the spring 31, which was compressed during the locking action, begins to release its stored potential energy. Driven by the spring 31, the waterproof sealant 33 and the waterproof base 34 quickly rise into the through-slot 5 on the main control board 2, forming a tight, sealed, and waterproof structure. This design not only ensures the waterproof performance of the door lock when it is open, but also effectively prevents dust, moisture, and other impurities from entering the door lock, extending its service life.

[0081] Example 3

[0082] refer to Figures 1 to 10 Based on the same technical concept, this embodiment provides a door lock control method for a roller pump type high-pressure injector, applicable to the door lock control system of the roller pump type high-pressure injector as described in Embodiment 1 or 2. The method covers the entire process from receiving the detection position to executing the locking and unlocking actions, and the specific process is as follows:

[0083] First, the system's controller can sensitively receive the position detection signal, which originates from the precise sensing 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 immediately generate a position detection signal and send it to the controller. As the central processing unit, the controller quickly calculates the locking control command based on the received position detection signal and transmits this command to the motor 18.

[0084] In response to the controller's command, motor 18 starts and drives the left-right moving component on slide 17 to begin moving. Driven by the motor, this component moves along a preset path toward latch 8 until the contact part 35 slides along the inclined feature 29 to the lower end of its inclined surface. At this point, the locking tongue 24 in the left-right moving component is precisely aligned with and locks latch 8, achieving a stable vertical limit and marking the completion of the locking action.

[0085] When unlocking is required, the operator inputs an unlocking control command through the human-machine interface unit. The human-machine interface unit quickly captures this command and transmits it to the controller. The controller then parses the command, generates the corresponding unlocking control signal, and sends it to motor 18.

[0086] Motor 18 restarts, but this time it drives the left-right moving assembly to move away from latch 8. As the abutment 35 slides along the inclined feature 29 to the upper end of its inclined surface, the bolt 24 gradually releases its restraint on latch 8. When the bolt 24 is completely disengaged from latch 8, the unlocking action is completed.

[0087] In summary, the door lock control method for the roller pump type high-pressure injector provided in this embodiment, through precise positioning detection, efficient motor drive, and ingenious mechanical structure design, realizes the fast and reliable locking and unlocking functions of the door lock system, providing users with a convenient and safe operating experience.

[0088] In the description of this disclosure / application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to explain the relative positional relationship and movement between components in a specific orientation. If the specific orientation changes, the directional indication will also change accordingly. These terms are used only for the convenience of describing this disclosure / application and for simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure / application.

[0089] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this disclosure / application, unless otherwise stated, "a plurality of" means two or more.

[0090] In the description of this disclosure / 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 communication between two components. Those skilled in the art will understand the specific meaning of the above terms in this disclosure / application based on the specific circumstances.

[0091] The above description is only a preferred embodiment of this disclosure / application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this disclosure / application, and these improvements and modifications should also be considered within the protection scope of this 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 board (2), latch assembly (3), lock body assembly (4), position detection assembly, human-machine interaction unit and controller; The door panel (1) is rotatably connected to the main control board (2) on one side; the latch 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 board (2); a through groove (5) adapted to the outer contour of the latch assembly (3) is also provided on the main control board (2). The positioning detection component is used to detect the relative position of the door panel (1) and the main control board (2). When the door panel (1) reaches the preset detection range, a positioning detection signal is generated and transmitted to the controller. The controller generates a locking control command based on the positioning detection signal. The human-machine interaction unit is used to receive the unlocking control command input by the operator and transmit the unlocking control command to the controller. The controller is electrically connected to the position detection component and the human-machine interaction unit respectively, and is used to control the lock body component (4) to perform the corresponding locking or unlocking actions according to the locking control command or unlocking control command; The lock body assembly (4) includes: a connecting assembly, a driving assembly, a left-right moving assembly, and a right-up-down moving assembly; The connecting component includes: a base plate (11) and a connecting frame (12); the bottom of the connecting frame (12) is fixedly connected to the base plate (11), and the top is fixedly connected to the main control board (2); the connecting frame (12) also has 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 vertical moving component to slide in the vertical direction; the second sliding space (15) is used for the horizontal moving component to slide in the horizontal direction under the drive of the driving component. The drive assembly includes: a lead screw (16), a slide (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 base plate (11), and the two ends of the motor base (19) are respectively equipped with the first connecting plate (20) and the second connecting plate (21) arranged vertically. The motor (18) is installed on the second connecting plate (21); one end of the lead screw (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) are connected by threads. The bottom of the slide (17) is provided with a groove (22). The motor base (19) is provided with a guide rail (23) that matches the groove (22). 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). The left and right moving components include: a locking tongue (24), and a third connecting plate (25), a fourth connecting plate (26), and a fifth connecting plate (27) integrally formed. The fifth connecting plate (27) is horizontally arranged and 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 (17), and a vertically arranged connecting block (28) is installed on the top for cooperating with the horizontally arranged locking tongue (24); The third connecting plate (25) and the fourth connecting plate (26) are vertically arranged and are both located on the outside of the connecting frame (12); the third connecting plate (25) and the fourth connecting plate (26) are symmetrically provided with inclined surface features (29); when the fifth connecting plate (27) slides horizontally under the drive of the slide table (17), the up and down moving component slides vertically along the inclined surface features (29) in the first sliding space (14); The bottom of the main control board (2) is provided with a recessed groove (30) for the latch (24) to slide horizontally, and the end of the latch (24) near the up and down moving component is set with an inclined surface. The up-and-down moving assembly includes: a spring (31), a spring base (32), waterproof adhesive (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 adhesive (33) is installed on the waterproof base (34), and the outer contours of the waterproof base (34) and the waterproof adhesive (33) are adapted to the through groove (5); the two ends of the spring base (32) are respectively provided with an abutment part (35) for abutting against the inclined surface feature part (29) and slidingly connected to the inclined surface feature part (29).

2. The door lock control system for a roller pump type high-pressure injector according to claim 1, characterized in that, The positioning detection component includes: a proximity switch body (6) and an iron piece (7); the iron piece (7) is installed on the door panel (1), the proximity switch body (6) is installed on the main control board (2), and the proximity switch body (6) is electrically connected to the controller; When the iron piece (7) installed on the door panel (1) moves into the preset detection range of the proximity switch body (6), the proximity switch body (6) generates a position detection signal and transmits the 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 latch assembly (3) includes: latch (8), first latch (9) and second latch (10); the latch (8) is U-shaped, and its open end passes through the first latch (9), door panel (1) and second latch (10) in sequence, and is fixedly connected to the door panel (1) by a nut (40).

4. The door lock control system for a roller pump type high-pressure injector according to claim 3, characterized in that, Before the locking action is initiated, the abutting part (35) in the up-down moving component is connected to the upper end of the inclined surface corresponding to the inclined surface feature part (29) in the left-right moving component; The processing steps corresponding to the locking action include: After the latch (8) passes through the through groove (5) and presses down on the waterproof adhesive (33), the spring (31) is compressed. When the iron piece (7) moves to the preset detection range of the proximity switch body (6), the proximity switch body (6) transmits the corresponding generated position detection signal to the controller. The controller transmits the corresponding generated locking control command to the motor (18) according to the position detection signal. The motor (18) responds to the locking control command and drives the left and right moving components installed on the slide table (17) to slide towards the latch (8) until the abutment part (35) slides to the lower end of the inclined surface corresponding to the inclined surface feature part (29). The locking tongue (24) in the left and right moving components limits the latch (8) in the vertical direction, and the locking action is completed.

5. The door lock control system for a roller pump type high-pressure injector according to claim 3, characterized in that, The processing steps corresponding to the unlocking action include: 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 and right moving component installed on the slide (17) to slide away from the latch (8) until the abutment part (35) slides to the upper end of the inclined surface corresponding to the inclined surface feature part (29), the latch (24) in the left and right moving component releases the vertical restriction on the latch (8), and the unlocking action is completed; After the unlocking action is completed, the door panel (1) is flipped over, the locking buckle (8) is released from the pressure state on the waterproof adhesive (33), the spring (31) is released, and the waterproof adhesive (33) and the waterproof base (34) rise into the through groove (5) opened on the main control board (2) under the action of the spring (31) to form a sealed waterproof.

6. A door lock control method for a roller pump type high-pressure injector, applicable to the door lock control system of the roller pump type high-pressure injector as described in claim 3, characterized in that, include: Upon receiving the bit detection signal, an interlock control command is generated based on the bit detection signal. According to the locking control command, the lock body assembly (4) is controlled to perform the corresponding locking action; After the locking action is completed, the unlocking control command is received, and then the lock body component (4) is controlled to perform the corresponding unlocking action according to the unlocking control command; The processing steps corresponding to the locking action include: After the latch (8) passes through the through groove (5) and presses down on the waterproof adhesive (33), the spring (31) is compressed. When the iron piece (7) moves to the preset detection range of the proximity switch body (6), the proximity switch body (6) transmits the corresponding position detection signal to the controller. The controller transmits the corresponding locking control command to the motor (18) according to the position detection signal. The motor (18) responds to the locking control command and drives the left and right moving components mounted on the slide table (17) to slide towards the latch (8) until the abutment part (35) slides to the lower end of the inclined surface corresponding to the inclined surface feature part (29). The latch (24) in the left and right moving components realizes the vertical limit of the latch (8), and the locking action is completed. The processing steps corresponding to the unlocking action include: 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 and right moving components mounted on the slide (17) to slide away from the latch (8) until the abutment part (35) slides to the upper end of the inclined surface corresponding to the inclined surface feature part (29), and the latch (24) in the left and right moving components releases the vertical limit on the latch (8), and the unlocking action is completed.

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