Pump tube automatic mounting and dismounting device and blood purification equipment

Abstract

The application belongs to the technical field of medical apparatus and discloses a pump pipe automatic mounting and dismounting device and blood purification equipment. The pump pipe automatic mounting and dismounting device comprises a shell, a chuck, a moving mechanism and a first position detection mechanism. A plurality of peristaltic pumps are arranged on the outer wall of the shell; a plurality of pump pipes are arranged on the chuck; the moving mechanism is arranged on the shell and comprises a driving piece, a transmission assembly and a connecting assembly, one end of the transmission assembly is in transmission connection with the driving piece, the other end is connected with the connecting assembly, and the connecting assembly can be detachably connected with the chuck; the first position detection mechanism is arranged on the shell and is used for detecting the relative position of the chuck and the peristaltic pump. The application can avoid manual installation and dismounting of the pump pipe by medical staff, save installation and dismounting time, reduce the operation strength and error risk of the medical staff, shorten the treatment time and improve the operation efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a pump pipe automatic mounting and dismounting device and a blood purification device. BACKGROUND

[0002] In the blood purification device, peristaltic pumps are used in cooperation with special dialysis pipelines to perform hemodialysis treatment. Due to the differences in the blood purification device and the selected treatment mode, one to several peristaltic pumps are usually required to complete the treatment process.

[0003] The dialysis pipeline used in cooperation with the blood purification device can be divided into segmented and sleeve types according to the structure. The sleeve type is to pre-assemble the dialysis pipeline on a sleeve, and when used, only the sleeve needs to be sleeved on the panel of the blood purification device, and then the dialysis pipeline at the corresponding position is installed and cooperated with the blood purification device. Compared with the segmented dialysis pipeline, the sleeve type reduces the workload of medical personnel in manually replacing the pipeline and reduces the risk of pipeline installation errors.

[0004] The part of the dialysis pipeline used in cooperation with the peristaltic pump is called a pump pipe. Whether it is segmented or sleeve type, during the replacement of the dialysis pipeline, the installation and dismounting of the pump pipe still mostly need to be manually rotated by medical personnel. The pump pipe is installed into the working position by rotating, which not only wastes time and effort, greatly increases the workload of medical personnel, but also has the risk of errors, and further increases the treatment time. This problem is more obvious when multiple peristaltic pumps are required to cooperate to complete the treatment. SUMMARY

[0005] The purpose of the present application is to provide a pump pipe automatic mounting and dismounting device and a blood purification device, which avoids manual installation and dismounting of the pump pipe by medical personnel, saves installation and dismounting time, reduces the operation strength and error risk of medical personnel, shortens the treatment time, and improves the operation efficiency.

[0006] To achieve this purpose, the present application adopts the following technical solutions:

[0007] The pump pipe automatic mounting and dismounting device comprises:

[0008] A housing, a plurality of peristaltic pumps are arranged on the outer wall of the housing;

[0009] A chuck, a plurality of pump pipes are arranged on the chuck;

[0010] A moving mechanism arranged on the housing, the moving mechanism comprises a driving member, a transmission assembly and a connecting assembly, one end of the transmission assembly is in transmission connection with the driving member, and the other end is connected with the connecting assembly, and the connecting assembly can be detachably connected with the chuck;

[0011] A first position detection mechanism is arranged on the shell, and is configured to detect the relative position between the chuck and the shell.

[0012] As an optional solution of the pump pipe automatic loading and unloading device, the chuck is provided with a connecting hole, the connecting assembly comprises a rotating shaft, an elastic member sleeved on the rotating shaft, and a clamping hook arranged on the rotating shaft, and the elastic member is configured to drive the rotating shaft to rotate so that the clamping hook is clamped with the corresponding connecting hole.

[0013] As an optional solution of the pump pipe automatic loading and unloading device, the clamping hook is provided with a guide slope and a groove, and the inner wall of the connecting hole can slide into the groove along the guide slope.

[0014] As an optional solution of the pump pipe automatic loading and unloading device, the connecting assembly further comprises a shell, the shell is connected with the transmission assembly, two parallel rotating shafts are arranged in the shell, and the two ends of the rotating shaft are arranged outside the shell, respectively, the clamping hook is arranged at the two ends of the rotating shaft, and the two clamping hooks on the same side of the two rotating shafts are arranged oppositely.

[0015] As an optional solution of the pump pipe automatic loading and unloading device, the driving member is arranged on the side wall of the shell away from the peristaltic pump, the transmission assembly comprises a lead screw rotationally connected with the driving member, a movable plate screwed with the lead screw, and a connecting rod arranged on the movable plate, and the connecting rod is connected with the connecting assembly.

[0016] As an optional solution of the pump pipe automatic loading and unloading device, the shell is provided with a support, the support is provided with a fixed plate, and the driving member is arranged on the side wall of the fixed plate away from the movable plate.

[0017] As an optional solution of the pump pipe automatic loading and unloading device, the first position detection mechanism comprises a detection rod slidingly connected with the shell, a shielding plate arranged at one end of the detection rod, and a plurality of first photoelectric detectors arranged on the shell, the shielding plate is provided with a through hole, the other end of the detection rod can abut against the chuck, the chuck can drive the detection rod to slide, and the first photoelectric detector can emit a detection signal towards the shielding plate or the through hole.

[0018] As an optional solution of the pump pipe automatic loading and unloading device, the pump pipe automatic loading and unloading device further comprises a second position detection mechanism, the second position detection mechanism comprises a plurality of second photoelectric detectors arranged on the shell, and a shielding portion arranged on the movable plate, when the movable plate is located at a predetermined position, the shielding portion can shield the signal of the second photoelectric detector.

[0019] As an optional solution for an automatic loading and unloading device for pump tubes, the peristaltic pump is provided with a hook portion and an extrusion portion on its circumference. The hook portion is used to drive the pump tube to be sleeved on the extrusion portion, and the pump tube is squeezed to the preset working position of the peristaltic pump through the extrusion portion.

[0020] A blood purification device comprises the automatic pump tube assembly and disassembly device described in any of the above schemes.

[0021] Beneficial effects:

[0022] In the first aspect of the present invention, the shell is used to provide space and position for support, limitation and fixed installation of other components of the device. The chuck is driven by a moving mechanism to achieve matching and release with the shell, and then conveniently cooperates with the rotation of the peristaltic pump to achieve accurate sleeve installation of the corresponding pump tube on the peristaltic pump, completing the installation of the pump tube on the peristaltic pump. Specifically, the driving member can drive the transmission component to move, and the execution end of the transmission component further controls the connection component to drive the chuck to complete the precise adjustment of the position. The connection component and the chuck can adopt easy-to-disassemble connection methods such as snap-on or disassembly, which facilitates the separation and connection of the connection component and the chuck. At the same time, the relative position of the chuck and the shell can be detected by the first position detection mechanism. The device can effectively avoid medical staff from manually installing and removing the pump tube, saving installation and removal time, reducing the operation intensity of medical staff, and also avoiding installation failures and error risks, shortening treatment time, and improving operation efficiency.

[0023] In the second aspect of the present invention, a blood purification device equipped with the automatic pump tube loading and unloading device can reduce the operating intensity of medical staff, improve operating efficiency, and shorten the treatment time for patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a partial cross-sectional view of the automatic pump tube assembly and disassembly device provided by an embodiment of the present invention;

[0025] Figure 2 This is a first exploded view of the automatic pump tube assembly and disassembly device provided by an embodiment of the present invention;

[0026] Figure 3 This is a second exploded view of the automatic pump tube assembly and disassembly device provided by an embodiment of the present invention;

[0027] Figure 4 yes Figure 3 A local enlarged view at point A;

[0028] Figure 5 is a schematic diagram of the rear side of a chuck provided by an embodiment of the present invention;

[0029] Figure 6 is a front side schematic diagram of a chuck provided by an embodiment of the present invention;

[0030] Figure 7 Fig. 1 is a first sectional view of the pump pipe automatic loading and unloading device provided by the embodiment of the present application;

[0031] Figure 8 Fig. 4 is a structural schematic view of the detection rod and the shielding plate provided by the embodiment of the present application;

[0032] Figure 9 Fig. 5 is a schematic view of three different position detection states of the first position detection mechanism provided by the embodiment of the present application;

[0033] Figure 10 Fig. 6 is a structural schematic view of the initial position of the peristaltic pump provided by the embodiment of the present application;

[0034] Figure 11 Fig. 7 is a top view of the peristaltic pump provided by the embodiment of the present application;

[0035] Figure 12 Fig. 8 is a front view of the peristaltic pump provided by the embodiment of the present application;

[0036] Figure 13 Fig. 9 is an axonometric view of the peristaltic pump provided by the embodiment of the present application.

[0037] In the drawings:

[0038] 100, pump pipe;

[0039] 1, shell; 11, peristaltic pump; 111, hook portion; 112, extrusion portion; 12, support; 13, fixed plate; 14, seat plate;

[0040] 2, chuck; 21, connecting hole;

[0041] 31, driving piece; 32, transmission assembly; 321, screw; 322, movable plate; 3221, shielding portion; 323, connecting rod; 33, connecting assembly; 331, rotating shaft; 332, elastic piece; 333, clamping hook; 3331, guide inclined surface; 3332, groove; 334, outer shell; 335, fixed shaft;

[0042] 4, first position detection mechanism; 41, detection rod; 42, shielding plate; 421, through hole; 43, first photoelectric detector; 44, compression spring;

[0043] 51, second photoelectric detector. DETAILED DESCRIPTION

[0044] The present application will be further described below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are merely intended for the purpose of interpretation of the present application and are not limiting of the present application. In addition, it should be noted that only the parts related to the present application are shown in the drawings for the purpose of description.

[0045] In the description of the present application, unless specifically defined and limited otherwise, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0046] In the present application, unless specifically defined and limited otherwise, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0047] In the description of the present embodiment, the terms "up", "down", "right", etc. orientation or position relationship is based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0048] Please refer to the accompanying Figure 1 -attached Figure 3 The first aspect of the present embodiment relates to a pump pipe automatic loading and unloading device (hereinafter referred to as "device"), which comprises a shell 1, a chuck 2, a moving mechanism and a first position detection mechanism 4. A plurality of peristaltic pumps 11 are provided on the outer wall of the shell 1; a plurality of pump pipes 100 are provided on the chuck 2; the moving mechanism is provided on the shell 1, and the moving mechanism comprises a driving member 31, a transmission assembly 32 and a connecting assembly 33, one end of the transmission assembly 32 is in transmission connection with the driving member 31, and the other end is connected with the connecting assembly 33, and the connecting assembly 33 can be detachably connected with the chuck 2; the first position detection mechanism 4 is provided on the shell 1, and the first position detection mechanism 4 is used for detecting the relative position of the chuck 2 and the shell 1.

[0049] In the embodiment, the shell 1 is a plate-shaped member and is vertically arranged in use, and is used to provide space and position for supporting, limiting, and fixedly mounting other components of the device. The chuck 2 can be kept parallel to the shell 1 when cooperating with the shell 1, and a mounting cavity for pre-installing the pump tube 100 is formed on one side of the chuck 2 relative to the shell 1. Each pump tube 100 is installed in a U-shaped state on the mounting position of the chuck 2, and the two straight pipe sections of the pump tube 100 can be fixed to the wall surface of the chuck 2 by bonding. For pump tubes 100 of different diameters and purposes, the corresponding peristaltic pump 11 specifications of the shell 1 are matched, and the pump tubes 100 are correspondingly fixed at different positions of the chuck 2. Further, the chuck 2 is driven to move by the moving mechanism to realize cooperation and disengagement with the shell 1, and can be conveniently cooperated with the rotating action of the peristaltic pump 11 to realize accurate sleeving of the corresponding pump tube 100 on the peristaltic pump 11, complete the installation of the pump tube 100 on the peristaltic pump 11. Specifically, the driving member 31 can drive the transmission assembly 32 to move, and the execution end of the transmission assembly 32 further controls the connecting assembly 33 to drive the chuck 2 to complete accurate adjustment of the position. The connecting assembly 33 and the chuck 2 can be connected by a detachable connection mode such as clamping or inserting, so as to facilitate the separation and connection of the connecting assembly 33 and the chuck 2. Meanwhile, the device is provided with the first position detection mechanism 4 for detecting the relative position of the chuck 2 and the shell 1.

[0050] The device can effectively avoid manual installation and disassembly of the pump tube 100 by medical staff, save installation and disassembly time, reduce the operation strength of the medical staff, and also avoid installation failure and error risk, shorten the treatment time, and improve the operation efficiency.

[0051] Please refer to the accompanying drawings Figure 4 - the accompanying drawings Figure 6 Optionally, the chuck 2 is provided with a connecting hole 21, the connecting assembly 33 includes a rotating shaft 331, an elastic member 332 sleeved on the rotating shaft 331, and a clamping hook 333 provided on the rotating shaft 331, and the elastic member 332 is used to drive the rotating shaft 331 to rotate to enable the clamping hook 333 to clamp the corresponding connecting hole 21.

[0052] In the embodiment, the chuck 2 is cuboid in overall shape, two connecting holes 21 are arranged on the chuck 2, one is arranged on the top of the chuck 2, and the other is arranged on the bottom of the chuck 2, the rotating shaft 331 is vertically arranged, and the clamping hooks 333 are arranged on both ends of the rotating shaft 331. The two clamping hooks 333 can be directly sleeved on both ends of the rotating shaft 331 and are in interference fit with the rotating shaft 331 to realize relative fixed connection. Of course, the two clamping hooks 333 can be directly integrally formed on both ends of the rotating shaft 331, so as to reduce the number of parts and the assembly link. Those skilled in the art can comprehensively select the specific form of the rotating shaft 331 and the clamping hook 333 according to economy and assembly, and the embodiment is not limited in particular. When the chuck 2 is matched with the connecting assembly 33, the two clamping hooks 333 are opposite to the two connecting holes 21 respectively. A certain rotating pre-tightening force is provided to the elastic member 332 by rotating the clamping hook 333 by a certain angle. When the connecting hole 21 needs to be connected and matched with the clamping hook 333, the clamping hook 333 is matched with the inner wall of the corresponding connecting hole 21 by using the reverse elastic recovery of the elastic member 332.

[0053] Please refer to the accompanying drawings Figure 1 -attached drawings Figure 4 Further, the connecting assembly 33 further comprises a shell 334, the shell 334 is connected with the transmission assembly 32, the two parallel rotating shafts 331 pass through the shell 334, and both ends of the rotating shaft 331 are arranged outside the shell 334. The two ends of the rotating shaft 331 are respectively provided with the clamping hooks 333, and the two clamping hooks 333 located on the same side of the two rotating shafts 331 are arranged opposite to each other.

[0054] In the embodiment, the shell 334 is cuboid in shape and is used for fixing the two parallel rotating shafts 331. The two rotating shafts 331 pass through both ends of the shell 334. The elastic member 332 can adopt a torsion spring. The elastic member 332 is sleeved on the structure of the rotating shaft 331 located in the shell 334. The part of the rotating shaft 331 close to the elastic member 332 is transversely inserted with a fixing shaft 335. The fixing shaft 335 is provided with an opening away from the rotating shaft 331. One end of the elastic member 332 is fixed in the opening, or one end of the elastic member 332 is sleeved on the rotating shaft 331. The other end of the elastic member 332 can be fixed or abutted on the inner wall of the shell 334. The two clamping hooks 333 located on the same side of the two rotating shafts 331 are arranged opposite to each other. The connecting hole 21 is rectangular, and the two clamping hooks 333 can be respectively clamped on the inner wall of the short side of the connecting hole 21.

[0055] Optionally, the clamping hook 333 is provided with a guide slope 3331 and a groove 3332, and the inner wall of the connecting hole 21 can slide into the groove 3332 along the guide slope 3331.

[0056] The guiding slope 3331 of the clamping hook 333 is first pressed and slides against the inner wall of the connecting hole 21, and then the inner wall of the connecting hole 21 is placed into the groove 3332, thereby completing the clamping and enabling the clamping hook 333 and the inner wall of the connecting hole 21 to smoothly complete the clamping.

[0057] Specifically, when the medical staff needs to realize the connection and cooperation of the chuck 2 and the connecting assembly 33, first, the upper and lower clamping hooks 333 are respectively aligned with the upper and lower chucks 2, and the chuck 2 is moved forward. Under the action of the guiding slope 3331, the clamping hook 333 rotates, at this time, the elastic member 332 stores a certain pre-tightening force, and the chuck 2 is continuously moved. When passing the guiding slope 3331, the elastic member 332 reversely drives the groove 3332 of the clamping hook 333 to abut against the inner wall of the connecting hole 21, thereby completing the clamping. The existence of two outwardly paired clamping hooks 333 on the same connecting hole 21 can ensure the stability of the clamping. When the medical staff needs to realize the disconnection of the chuck 2 and the connecting assembly 33, it is only necessary to press the paired clamping hooks 333 and reversely take down the chuck 2.

[0058] The person skilled in the art can reasonably adjust the number and shape of the connecting hole 21 according to the stability of the connection, the economy of processing and the difficulty of positioning.

[0059] The connecting part of the guiding slope 3331 and the groove 3332 of the clamping hook 333 can use a curved surface structure transition to ensure the smoothness of the clamping and the disconnection.

[0060] Please continue to refer to the attached Figure 1 -attached Figure 3 Optionally, the driving member 31 is arranged on a side wall surface of the shell 1 away from the peristaltic pump 11, the transmission assembly 32 comprises a lead screw 321 rotationally connected with the driving member 31, a movable plate 322 screwed with the lead screw 321, and a connecting rod 323 arranged on the movable plate 322 and connected with the connecting assembly 33. The shell 1 is provided with a bracket 12, the bracket 12 is provided with a fixed plate 13, and the driving member 31 is arranged on a side wall surface of the fixed plate 13 away from the movable plate 322.

[0061] In the embodiment, the driving member 31 can adopt a conventional stepping motor or an electric cylinder which can provide a rotating output. The bracket 12 is T-shaped, one end of the bracket 12 is connected to a side wall of the shell 1 away from the peristaltic pump 11, the other end is connected to the fixed plate 13, two brackets 12 are arranged along the vertical direction, the two brackets 12 are respectively connected to the upper end and the lower end of the fixed plate 13 in the vertical state, the driving member 31 is screwed on the plate surface of the fixed plate 13, and the output end of the driving member 31 is connected to the lead screw 321, the lead screw 321 passes through the fixed plate 13 and is screwed with the movable plate 322. Therefore, the rotation of the driving member 31 can drive the lead screw 321 to rotate, and then the movable plate 322 moves along the axial direction of the lead screw 321, the movable plate 322 is provided with two connecting rods 323, the other ends of the two connecting rods 323 are connected to the connecting assembly 33, therefore, the movement of the movable plate 322 drives the connecting rods 323 and the connecting assembly 33, and ensures the movement of the chuck 2. It can be understood that the change of the output direction of the driving member 31 can make the chuck 2 move back and forth in the horizontal direction, and complete the approaching and moving away actions of the chuck 2 and the shell 1.

[0062] In the embodiment, the movable plate 322 can be directly screwed with the lead screw 321, of course, a connecting seat can also be arranged on the movable plate 322, and the connecting seat is screwed with the lead screw 321. The connecting seat can be directly replaced after being worn out after a long time of use, avoiding the wear of the movable plate 322 directly participating in the rotation cooperation, and reducing the maintenance cost of the equipment.

[0063] Please refer to the accompanying drawings Figure 7 and the accompanying drawings Figure 8 Optionally, the first position detection mechanism 4 comprises a detection rod 41 slidably connected with the shell 1, a shielding plate 42 provided at one end of the detection rod 41, and a plurality of first photoelectric detectors 43 provided on the shell 1, the shielding plate 42 is provided with a through hole 421, the other end of the detection rod 41 can abut against the chuck 2, the chuck 2 can drive the detection rod 41 to slide, and the first photoelectric detector 43 can emit a detection signal towards the shielding plate 42 or the through hole 421.

[0064] In the embodiment, the top of the shell 1 is provided with a through hole, part of the structure of the detection rod 41 is arranged inside the through hole, one end of the detection rod 41 is used for abutting against the chuck 2, the other end of the detection rod 41 is provided with the shielding plate 42 with a plurality of through holes 421, and two first photoelectric detectors 43 are arranged on the shell 1 along the extension direction of the detection rod 41. In the embodiment, the translational movement of the chuck 2 along the horizontal plane is reflected on the translational movement of the detection rod 41, and the position of the chuck 2 relative to the shell 1 is judged by using the logical relationship between the emission and reception signals of the first photoelectric detector 43.

[0065] Please refer to the accompanying drawings Figure 9Specifically, the first position detection mechanism 4 has three position detection states according to the actual use scene of the device.

[0066] State 1: When the chuck 2 is not installed, the detection rod 41 is located at the outermost side, the shielding plate 42 shields the first photoelectric detector 43 on the right side, and does not shield the first photoelectric detector 43 on the left side. At this time, the states of the two first photoelectric detectors 43 are: the right side is not connected, and the left side is connected.

[0067] State 2: When the chuck 2 is installed on the connecting assembly 33, the detection rod 41 is in contact with the chuck 2 and moves a distance S1 to the left under the pressure of the chuck 2. At this time, the through hole 421 of the shielding plate 42 moves to the opposite position of the first photoelectric detector 43 on the right side, and shields the first photoelectric detector 43 on the left side. At this time, the states of the two first photoelectric detectors 43 are: the right side is connected, and the left side is not connected.

[0068] State 3: When the chuck 2 continues to move to the left under the driving of the connecting assembly 33, that is, the chuck 2 moves a distance S2 to the left to install the chuck 2 in place, the through hole 421 on the shielding plate 42 moves to the opposite position of the two first photoelectric detectors 43. At this time, the states of the two first photoelectric detectors 43 are: the right side is connected, and the left side is connected.

[0069] Therefore, the position of the chuck 2 can be detected through the states of the two first photoelectric detectors 43.

[0070] Please refer to the accompanying drawings Figure 7 In this embodiment, when the chuck 2 exits, in order to ensure that the chuck 2 always maintains the abutting relationship with the detection rod 41, a compression spring 44 is further sleeved on the detection rod 41. During the continuous movement of the chuck 2 to the left, the compression spring 44 is compressed and stored. During the continuous movement of the chuck 2 to the right, the compression spring 44 presses the detection rod 41, so that the detection rod 41 always abuts against the chuck 2. Specifically, an annular stepped platform is arranged on the detection rod 41, one end of the compression spring 44 abuts against the annular stepped platform, and the other end abuts against the housing 1 or abuts against the annular limiting member arranged at the opening of the through hole.

[0071] Please refer to the accompanying drawings Figure 3 In this embodiment, a seat plate 14 is arranged on the housing 1, and the upper surface of the seat plate 14 is used to fix the first photoelectric detector 43.

[0072] Optionally, the device further comprises a second position detection mechanism, the second position detection mechanism comprising a plurality of second photoelectric detectors 51 arranged on the housing 1, and a shielding part 3221 arranged on the movable plate 322, the shielding part 3221 being capable of shielding the signals of the second photoelectric detectors 51 when the movable plate 322 is located at a predetermined position.

[0073] In the embodiment, the top of the movable plate 322 extends upward to form a shielding part 3221, and two second photoelectric detectors 51 are arranged on the lower surface of the seat plate 14. The two second photoelectric detectors 51 are arranged at two limit positions of the movable plate 322 respectively, and the shielding part 3221 shields the signals of the second photoelectric detectors 51 when the movable plate 322 moves to the two limit positions. The two limit positions of the movable plate 322 actually reflect the two limit positions of the chuck 2.

[0074] The combined position detection of the first position detection mechanism 4 and the second position detection mechanism can avoid single detection failure, improve the reliability and safety of the device, and the position detection function of the device can be cancelled under the premise of ensuring the function implementation.

[0075] In other embodiments, the first photoelectric detector 43 and the second photoelectric detector 51 can also be replaced by a potentiometer capable of converting position signals and electrical signals.

[0076] Please continue to combine the attached Figure 10 -attached Figure 13 Optionally, the periphery of the peristaltic pump 11 is provided with a hook part 111 and a squeezing part 112, the hook part 111 is used to drive the pump tube 100 to be sleeved on the squeezing part 112, and the pump tube 100 is squeezed to the preset working position of the peristaltic pump 11 by the squeezing part 112.

[0077] In the embodiment, when the pump tube 100 reaches the predetermined working position, the peristaltic pump 11 rotates, the pump tube 100 is driven to move downward with the chuck 2, at the same time, the pump tube 100 is hooked by the hook part 111 on the peristaltic pump 11 and is pressed downward, the pump tube 100 is driven to move downward, with the continuous rotation of the peristaltic pump 11, the squeezing part 112 continues to press the pump tube 100 downward, and finally the pump tube 100 is driven to the predetermined working position. When the pump tube is unloaded, the peristaltic pump 11 keeps rotating, the pump tube 100 is driven outward to leave the predetermined position with the outward movement of the pipe chuck 2, and finally the pump tube 100 is separated from the peristaltic pump 11, and the unloading action of the pump tube 100 is completed.

[0078] In the embodiment, the hook part 111 and the squeezing part 112 both have downward smooth inclined surfaces, which can protect the pump tube 100 and play a guiding role. A magnetic steel and a Hall sensor located at the bottom of the peristaltic pump 11 are arranged on the peristaltic pump 11, and the position of the peristaltic pump 11 can be detected by the cooperation of the magnetic steel and the Hall sensor, and the peristaltic pump 11 is positioned to the initial position before the tube loading action.

[0079] The second aspect of the embodiment also relates to a blood purification equipment, which comprises the above pump tube automatic loading and unloading device.

[0080] The blood purification equipment configured with the pump tube automatic loading and unloading device reduces the operation strength of medical staff, improves operation efficiency, and shortens the treatment time for patients.

[0081] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the implementation manners of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present application. Here, it is not necessary and also impossible to enumerate all the implementation manners. Any modification, equivalent substitution and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A pump pipe automatic attaching and detaching device characterized by, The utility model relates to a peristaltic pump device, including: A shell (1), a plurality of peristaltic pumps (11) are equipped on the outer wall of the shell (1); A chuck (2), a plurality of pump tubes (100) are equipped in the chuck (2); A moving mechanism is equipped on the shell (1), the moving mechanism includes driving part (31), transmission assembly (32) and connecting assembly (33), one end of transmission assembly (32) is connected with driving part (31) transmission, and the other end is connected with connecting assembly (33), and connecting assembly (33) can be detachably connected with chuck (2); A first position detection mechanism (4) is equipped on the shell (1), and the first position detection mechanism (4) is used for detecting the relative position of the chuck (2) and the shell (1);Wherein, Connecting hole (21) is equipped on the chuck (2), and the connecting assembly (33) includes rotating shaft (331), elastic member (332) that is sleeved on the rotating shaft (331) and clamping hook (333) that is equipped on the rotating shaft (331), the elastic member (332) is used to drive rotating shaft (331) rotates to make clamping hook (333) and corresponding connecting hole (21) are clamped;Connecting assembly (33) further includes shell (334), shell (334) is connected with transmission assembly (32), two parallel rotating shafts (331) are arranged in shell (334), and both ends of rotating shaft (331) are arranged outside shell (334) respectively, both ends of rotating shaft (331) are respectively equipped with clamping hook (333), and two clamping hooks (333) located on the same side of two rotating shafts (331) are arranged oppositely;Driving part (31) is arranged on the side wall surface of the shell (1) away from the peristaltic pump (11), transmission assembly (32) includes screw rod (321) that is rotatably connected with driving part (31), movable plate (322) that is screwed with screw rod (321) and connecting rod (323) that is arranged on movable plate (322), connecting rod (323) is connected with connecting assembly (33).

2. The pump pipe automatic handling device according to claim 1, characterized in that, Clamping hook (333) is equipped with guide inclined plane (3331) and groove (3332), and the inner wall of connecting hole (21) can slide into groove (3332) along guide inclined plane (3331).

3. The pump pipe automatic handling device according to claim 1, characterized in that, The shell (1) is equipped with a support (12), and the support (12) is equipped with a fixed plate (13). The driving part (31) is arranged on the side wall surface of the fixed plate (13) away from the movable plate (322).

4. The pump tube automatic handling device according to claim 1, characterized by The first position detection mechanism (4) comprises a detection rod (41) in sliding connection with the shell (1), a shielding plate (42) provided at one end of the detection rod (41), and a plurality of first photoelectric detectors (43) provided on the shell (1), the shielding plate (42) is provided with a through hole (421), the other end of the detection rod (41) can abut against the chuck (2), the chuck (2) can drive the detection rod (41) to slide, and the first photoelectric detector (43) can emit a detection signal towards the shielding plate (42) or the through hole (421).

5. The pump tube automatic handling device according to claim 1, characterized by The pump pipe automatic loading and unloading device further comprises a second position detection mechanism, the second position detection mechanism comprises a plurality of second photoelectric detectors (51) provided on the shell (1), and a shielding portion (3221) is provided on the movable plate (322), when the movable plate (322) is located at a preset position, the shielding portion (3221) can shield the signal of the second photoelectric detector (51).

6. The pump tube automatic handling device according to claim 1, characterized by The periphery of the peristaltic pump (11) is provided with a hook portion (111) and a squeezing portion (112), the hook portion (111) is used to drive the pump pipe (100) to be sleeved on the squeezing portion (112), and the pump pipe (100) is squeezed to a preset working position of the peristaltic pump (11) through the squeezing portion (112).

7. A blood purification apparatus characterized by comprising: The pump pipe automatic loading and unloading device comprises the peristaltic pump (11) and the first position detection mechanism (4).

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