Automatic pipeline dismounting and mounting device

The automatic disassembly and assembly device utilizes a linear screw motor and photoelectric sensors to automate the disassembly and assembly of pump tubes and pressure monitoring interfaces in blood purification equipment. This solves the problems of complex manual operation and high precision requirements in existing technologies, and achieves a fast and accurate disassembly and assembly process.

CN223971163UActive Publication Date: 2026-03-06SWS HEMODIALYSIS CARE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-01
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

The installation and disassembly of tubing and pressure monitoring interfaces in existing blood purification instruments and equipment mainly rely on manual operation, which is complex and cumbersome, and carries the risk of incorrect installation or connection. Existing automated devices have cumbersome structures and require high precision.

Method used

An automatic pipeline assembly and disassembly device is adopted, which uses a linear screw motor to drive the connecting plate and guide rod, combined with photoelectric sensors to achieve automatic positioning and assembly and disassembly, reducing the difficulty of assembly and disassembly and ensuring the accuracy and reliability of the connection.

Benefits of technology

The automatic disassembly and assembly of pump tubes and pressure monitoring interfaces in blood purification equipment has been achieved, reducing the difficulty of operation, saving time, and ensuring the stability and accuracy of the disassembly and assembly process through photoelectric sensors.

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Abstract

The utility model provides an automatic pipeline disassembling and assembling device which comprises a power source capable of being positioned on the inner wall of a carrier to be disassembled and assembled, a plurality of guide rods capable of penetrating through a shell of the carrier to be disassembled and assembled in a sliding mode and a connecting plate for fixing and positioning the guide rods, and the connecting plate is located on the inner side of the carrier to be disassembled and assembled. A power output shaft of the power source is movably connected with the connecting plate, and the power output shaft of the power source can drive the connecting plate to feed in the axial direction of the power output shaft; a first supporting rod and a second supporting rod are arranged at the free ends of the multiple guide rods, and a plurality of clamping buckles are arranged on the opposite inner sides of the first supporting rod and the second supporting rod and used for positioning a component to be disassembled and assembled on the carrier to be disassembled and assembled. The automatic assembly and disassembly device realizes automatic assembly and disassembly of the to-be-assembled and disassembled part on the to-be-assembled and disassembled carrier, can be applied to automatic assembly and disassembly of integrated consumables on blood purification equipment, and reduces the assembly and disassembly difficulty and the assembly and disassembly time.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an automatic disassembly and assembly device for pipelines, which can be used for the automatic disassembly and assembly of integrated consumables consisting of pump pipelines and pressure monitoring interfaces in blood purification instruments and equipment. Background Technology

[0002] Blood purification instruments and equipment filter blood through external devices, removing impurities and circulating the cleaned blood back into the patient's body via tubing to treat the illness. These instruments and equipment typically have multiple lines for transporting blood and various other fluids, usually delivered via tubing and a peristaltic pump. Before treatment, all tubing must be installed in appropriate locations, and branches of each line must be connected to a pressure monitoring device.

[0003] Currently, the installation and disassembly of pipelines and pressure monitoring interfaces for blood purification instruments and equipment are mainly done manually, and each one needs to be disassembled and reassembled one by one. Operators need to be professionally trained to install correctly and proficiently. The entire installation and disassembly process is complex, tedious, and time-consuming, and there are risks such as incorrect installation, incorrect connection, or omission.

[0004] Patent application publication number CN118320210A, entitled "Automatic Pump Tube Loading and Unloading Device and Blood Purification Equipment," utilizes a moving mechanism to engage a chuck with the housing, thereby achieving automatic engagement and disengagement between the pump tube and the peristaltic pump. Simultaneously, a position detection mechanism detects the relative position between the chuck and the housing, improving assembly accuracy. However, in practical applications, the moving mechanism uses a rotating shaft to drive a hook to engage with the connecting holes on the chuck and clamp the entire chuck in place. This structure is relatively cumbersome and requires high manufacturing precision. Furthermore, the initial engagement of the chuck with the housing requires manual operation. There is still room for improvement in automating the assembly and disassembly of pump tubes and monitoring interfaces in blood purification equipment, as well as reducing the intensity of assembly and disassembly. Summary of the Invention

[0005] In order to overcome the defects existing in the prior art, the purpose of this utility model is to provide an automatic pipeline disassembly and assembly device, which realizes automatic disassembly and assembly without manual operation, and ensures the accuracy and reliability of the connection during the disassembly and assembly process, reduces the difficulty of disassembly and assembly, and saves disassembly and assembly time.

[0006] To achieve the above-mentioned objectives of this utility model, an automatic disassembly and assembly pipeline device is provided, comprising a power source that can be positioned on the inner wall of the load to be disassembled, several guide rods that can slide through the shell of the load to be disassembled, and a connecting plate that fixes several of the guide rods. The connecting plate is located inside the load to be disassembled. The power output shaft of the power source is movably connected to the connecting plate, and the power output shaft of the power source can drive the connecting plate to feed along the axial direction of the power output shaft. The free ends of the several guide rods are provided with support rod one and support rod two. Several snap-fit ​​buckles are provided on the opposite inner sides of support rod one and support rod two for positioning the components to be disassembled on the carrier.

[0007] Furthermore, the power source is a linear screw motor, the power output shaft of which is a rotating shaft that passes through the connecting plate. A moving part is fixedly connected to the connecting plate, and the rotating shaft is threadedly connected to the moving part.

[0008] Furthermore, a speed measuring plate is provided at the end of the rotating shaft. The speed measuring plate has several speed measuring grooves evenly spaced around its perimeter. A first photoelectric sensor is fixed to the inside of the loading body to be disassembled. The sensing head of the first photoelectric sensor is facing the speed measuring groove area of ​​the speed measuring plate.

[0009] Furthermore, it also includes a bracket that can be positioned on the inner wall of the loading body to be disassembled, and the first photoelectric sensor is positioned on the bracket.

[0010] Furthermore, a second photoelectric sensor and a pre-set photoelectric sensor ejection position and photoelectric sensor retraction position are positioned on the bracket. A photosensitive film is provided on the inner side of the connecting plate. When the connecting plate is vertically fed, the light-blocking part of the photosensitive film can block the light at the photoelectric sensor ejection position and photoelectric sensor retraction position.

[0011] Furthermore, the linear screw motor is a double-headed linear screw motor, and the other end of the rotating shaft passes through the housing of the loading body to be disassembled, with a manual control port positioned at the end.

[0012] Furthermore, each of the snap-fit ​​buckles has a guide bevel or rounded corner.

[0013] The beneficial effects of this utility model are as follows: The device's power source drives the guide rod in both forward and reverse directions, and the support rods at the ends of the guide rods (one and two) position the side of the component to be disassembled or assembled. This allows for stable, accurate, and quick disassembly and assembly of the component onto the carrier, reducing the difficulty of disassembly and assembly, saving time, and requiring lower manufacturing precision. Furthermore, the first photoelectric sensor, in conjunction with a speed measuring plate, determines whether the operation is abnormal by analyzing the photoelectric output waveform, allowing for timely adjustments and prevention of abnormalities to ensure the carrier and components are not damaged. The second photoelectric sensor, in conjunction with a photosensitive film, controls the disassembly / assembly feed, achieving accurate disassembly and assembly. The addition of manual control allows for smooth disassembly and assembly even in abnormal situations.

[0014] This device is used in blood purification equipment to automatically disassemble and assemble integrated consumables containing pump tubing and pressure monitoring interfaces. It effectively grasps and positions the integrated consumables with pump tubing and pressure monitoring interfaces through support rod one and support rod two. Using a power source, the integrated consumables are effectively disassembled and assembled with the carrier to be disassembled, thus completing the disassembly and assembly of multiple interfaces in one go without manual operation. It also ensures the accuracy and reliability of the connection of each pressure monitoring interface, reduces the difficulty of disassembling and assembling integrated consumables, and saves disassembly and assembly time.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 This is a schematic diagram of the automatic pipeline disassembly and assembly device of this utility model;

[0018] Figure 2 yes Figure 1 Another axonometric bottom view;

[0019] Figure 3 yes Figure 2 Enlarged view of section A;

[0020] Figure 4 yes Figure 2 Enlarged view of section B;

[0021] Figure 5 This is a schematic diagram of the use of the automatic pipeline disassembly and assembly device of this utility model;

[0022] Figure 6 yes Figure 5 A schematic diagram of the structure of integrated consumables. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0024] In the description of this utility model, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components. They can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0025] like Figures 1 to 6 As shown, this utility model provides an automatic disassembly and assembly pipeline device, including a power source 1 that can be positioned on the inner wall of the load to be disassembled, several guide rods 4 that can slide through the shell of the load to be disassembled, and a connecting plate 3 that fixes and positions the several guide rods 4. The connecting plate 3 is located inside the load to be disassembled. The power output shaft of the power source 1 is movably connected to the connecting plate 3, and the power output shaft of the power source 1 can drive the connecting plate 3 to feed along the axial direction of the power output shaft. The free ends of the several guide rods 4 are provided with support rod 1 6 and support rod 2 7. The inner sides of the support rod 1 6 and support rod 2 7 are provided with several snap-fit ​​buckles for positioning the components to be disassembled on the carrier.

[0026] In this embodiment, the carrier to be disassembled is a blood purification device (or instrument); the component to be disassembled is an integrated consumable 14 with a pump tube and a pressure monitoring interface, so as to realize the automatic disassembly and assembly of the integrated consumable on the blood purification device.

[0027] First, the power source 1 in this utility model is used to drive the connecting plate 3 to move along the direction perpendicular to the equipment housing of the blood purification equipment, so as to realize the automatic disassembly and assembly of the integrated consumable 14 on the equipment housing of the blood purification equipment. Conventionally, the power source 1 can be a power source such as a pressure push rod, hydraulic cylinder, or pneumatic cylinder. In this case, a linear screw motor is preferred. By utilizing the characteristics of the linear screw motor itself, namely the axial self-locking force between the screw and the nut in the linear screw motor, the reliability and stability of the connection between the pump pipe and the pressure monitoring interface are ensured after the disassembly and assembly are completed and stopped.

[0028] That is: the power source 1 is a linear screw motor, the power output shaft of the linear screw motor is a rotating shaft 13, the rotating shaft 13 passes through the connecting plate 3, the moving part 2 is fixedly connected to the connecting plate 3, the rotating shaft 13 is threadedly connected to the moving part 2, and the whole device rotates through the rotating shaft 13 of the linear screw motor, so that the moving part 2 threadedly connected to it and the connecting plate 3 fixedly connected to the moving part 2 are fed along the axial direction of the rotating shaft 13.

[0029] The connecting plate 3 and the guide rod 4 can be integrally formed or assembled separately. The number of guide rods 4 can be determined according to the actual use and is not limited to four. The overall structure is simple and reliable. To ensure the guiding stability of the guide rod 4 on the equipment housing of the blood purification equipment, a guide sleeve 5 can be installed on the guide rod 4. That is, the guide sleeve 5 is positioned on the equipment housing, and the guide rod 4 slides in contact with the guide sleeve 5. The number of guide sleeves 5 can be determined according to the number of guide rods 4 required.

[0030] The end of the rotating shaft 13 is provided with a speed measuring plate 11. Several speed measuring grooves are evenly spaced around the perimeter of the speed measuring plate 11. A first photoelectric sensor 12 is fixed to the inside of the loading body to be disassembled. The sensing head of the first photoelectric sensor 12 is facing the speed measuring groove area of ​​the speed measuring plate 11.

[0031] The power source 1, namely the linear screw motor, is directly mounted inside the housing of the blood purification equipment. A bracket 9 is also mounted inside the housing, and the first photoelectric sensor 12 is fixed to the bracket 9. A second photoelectric sensor 10 and pre-set photoelectric sensor ejection position 1002 and photoelectric sensor retraction position 1001 are also positioned on the bracket 9. A photosensitive film 8 is provided inside the connecting plate 3. When the connecting plate 3 is vertically fed, the light-blocking portion 801 of the photosensitive film 8 can block light at the photoelectric sensor ejection position 1002 and photoelectric sensor retraction position 1001.

[0032] By pre-setting the second photoelectric sensor 10 and the relative position between the connecting plate 3 and the equipment housing of the blood purification equipment in the device's protruding and retracted positions, and establishing accurate position positioning on the bracket 9, namely the photoelectric sensor protruding position 1002 and the photoelectric sensor retracted position 1001, the photosensitive film 8 moves synchronously with the connecting plate 3. When the light-blocking part 801 of the photosensitive film 8 moves to the corresponding position of the photoelectric sensor protruding position 1002 and the photoelectric sensor retracted position 1001, position perception positioning is formed, and the lifting and lowering stop position of the device can be determined and controlled to achieve the positioning for disassembly and assembly.

[0033] At the same time, the first photoelectric sensor 12, together with the speed measuring board 11, determines whether the operation process is abnormal by the photoelectric output waveform. If there is an abnormality, the power source 1 will immediately respond and stop to ensure that the integrated consumables are not damaged by abnormality.

[0034] like Figure 4-6As shown, to ensure the stable positioning of the integrated consumable 14 by the support frame 6 and the support frame 7, the integrated consumable 14 is provided with a first latching position 1401, a second latching position 1402, and a third latching position 1403 on one side, and a fourth latching position 1411, a fifth latching position 1412, and a sixth latching position 1413 on the other side. The support frame 6 and the support frame 7 are respectively provided with a first latching position 601, a second latching position 602, a third latching position 603, a fourth latching position 701, a fifth latching position 702, and a sixth latching position 703 on their inner sides. 3. The first latch 601, the second latch 602, the third latch 603, the fourth latch 701, the fifth latch 702, and the sixth latch 703 are respectively latched to the first latch position 1401, the second latch position 1402, the third latch position 1403, the fourth latch position 1411, the fifth latch position 1412, and the sixth latch position 1413. Each of the first latch 601, the second latch 602, the third latch 603, the fourth latch 701, the fifth latch 702, and the sixth latch 703 has a guide bevel or rounded corner. The number of positioning latches on the integrated consumable 14 and the support frame 6 and the support frame 7 can be increased or decreased as needed to ensure a stable connection between the integrated consumable 14 and the support frame 6 and the support frame 7. Furthermore, the guide bevels or rounded corners on each buckle facilitate the snap-fit ​​positioning between the integrated consumable 14 and the support frame 6 and support frame 7.

[0035] Finally, the linear screw motor is set as a double-headed linear screw motor. The other end of the rotating shaft 13 passes through the equipment housing of the blood purification device and is positioned with a manual control port, usually an internal interface such as an Allen wrench, to avoid operational interference. By adding manual control, the integrated consumables can be removed manually without starting the motor in case of abnormalities.

[0036] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An automatic dismounting and mounting pipe device, characterized by: The device comprises a power source (1) which can be positioned on the inner wall of a carrier to be disassembled, a plurality of guide rods (4) which can slide through the shell of the carrier to be disassembled, a connecting plate (3) which fixes and positions the guide rods (4), wherein the power output shaft of the power source (1) is movably connected with the connecting plate (3), and the power output shaft of the power source (1) can drive the connecting plate (3) to feed in the axial direction of the power output shaft; the free end of each of the guide rods (4) is provided with a support rod I (6) and a support rod II (7), and the opposite inner sides of the support rod I (6) and the support rod II (7) are provided with a plurality of clamping buckles for positioning the components to be disassembled on the carrier to be disassembled.

2. The automatic dismounting device according to claim 1, characterized in that: The power source (1) is a linear lead screw motor, the power output shaft of the linear lead screw motor is a rotating shaft (13), the rotating shaft (13) penetrates through the connecting plate (3), the connecting plate (3) is fixedly connected with a moving piece (2), and the rotating shaft (13) is threadedly connected with the moving piece (2).

3. An automatic dismounting device according to claim 2, characterized in that: The rotating shaft (13) is provided with a speed measuring plate (11) at the end, the speed measuring plate (11) is uniformly and spacedly provided with a plurality of speed measuring grooves, a first photoelectric sensor (12) is fixedly arranged on the inner side of the carrier to be disassembled, and the sensing head of the first photoelectric sensor (12) faces the speed measuring groove area of the speed measuring plate (11).

4. An automatic dismounting device according to claim 3, characterized in that: The device further comprises a bracket (9) which can be positioned on the inner wall of the carrier to be disassembled, and the first photoelectric sensor (12) is positioned on the bracket (9).

5. An automatic dismounting device according to claim 4, characterized in that: The bracket (9) is provided with a second photoelectric sensor (10), a pre-set photoelectric sensor ejection position (1002) and a photoelectric sensor retraction position (1001), and the inner side of the connecting plate (3) is provided with a photosensitive sheet (8), when the connecting plate (3) vertically feeds, the light shielding part (801) of the photosensitive sheet (8) can shield the light of the photoelectric sensor ejection position (1002) and the photoelectric sensor retraction position (1001).

6. The automatic dismounting device according to claim 2, characterized in that: The linear lead screw motor is a double-head linear lead screw motor, the other end of the rotating shaft (13) penetrates through the shell of the carrier to be disassembled, and a manual control port is positioned at the end.

7. The automatic dismounting device according to claim 1, characterized in that: Each of the clamping buckles is provided with a guide bevel or a rounded corner.

Citation Information

Patent Citations

  • Automatic pump pipe loading and unloading device and blood purification equipment

    CN118320210A