A pump tube quick-change module

Abstract

This application relates to the field of peristaltic pump technology and provides a quick-change pump tube module, comprising: a pump base, the pump base integrating a roller assembly and a pipe interface; a pump tube module, including a pipe support detachably fitted with the pump base and a pump tube integrated on the pipe support, the pipe end of the pump tube being provided with a deformation sealing joint; when the pipe support is coupled with the pump base along a specified assembly direction: the roller assembly compresses the pump tube to produce a preset working deformation; the sealing pressure surface of the pump base simultaneously squeezes the deformation sealing joint, causing the deformation sealing joint to produce a preset deformation, so as to form a sealed connection with the pipe interface. This utility model, by pre-integrating the pump tube and the pipe support into an integral module, and then achieving rapid positioning through the directional coupling of the pipe support and the pump base, can realize the complete disassembly and replacement of the pump tube module, eliminating the disassembly operations of components such as pump housing, fasteners, and sealing rings, and can simultaneously complete the working deformation of the pump tube and the sealing deformation of the joint through a single assembly action, without the need for step-by-step operations or manual adjustments, thus improving installation efficiency.

Description

Technical Field

[0001] This application relates to the field of peristaltic pump technology, and in particular to a pump tube quick-change module. Background Technology

[0002] Peristaltic pumps deliver fluids by squeezing elastic pump tubing with rollers. They offer advantages such as being pollution-free and easy to clean, and are widely used in medical, food, and other fields. However, the tubing replacement process for existing peristaltic pumps presents the following problems:

[0003] 1. Cumbersome disassembly and assembly

[0004] Replacing the pump tubing requires disassembling the pump casing, fasteners, and other components, making the process complex.

[0005] Reinstallation requires adjusting the pump pipe position, which affects work efficiency.

[0006] 2. Poor sealing performance

[0007] The sealing between the pump pipe and the interface relies on an independent sealing ring, which is prone to leakage due to installation deviation;

[0008] After prolonged use, the sealing ring is prone to aging and deformation, affecting the sealing effect.

[0009] 3. Low replacement efficiency

[0010] Unable to perform quick plug-in / plug-out, resulting in long downtime;

[0011] The spare pump pipe cannot be pre-installed, and emergency replacement will affect the continuity of production.

[0012] These issues limit the ease of use of peristaltic pumps, especially in scenarios requiring frequent pump tubing replacements. Therefore, there is an urgent need for a pump tubing structure that allows for quick assembly and disassembly, reliable sealing, and easy maintenance. Utility Model Content

[0013] Based on this, the present invention provides a pump tube quick-change module to solve the problem of cumbersome pump tube replacement operation and low replacement efficiency in existing peristaltic pumps.

[0014] This utility model provides a pump pipe quick-change module, comprising:

[0015] Pump base, the pump base integrating roller assembly and pipe interface;

[0016] The pump tube module includes a tube frame that is detachably fitted with the pump base and a pump tube integrated on the tube frame, wherein the inlet of the pump tube is provided with a deformation sealing joint.

[0017] Specifically, when the pipe rack is coupled to the pump base along the specified assembly direction:

[0018] The roller assembly compresses the pump pipe to produce a preset working deformation;

[0019] The sealing and pressing surface of the pump base simultaneously presses the deformable sealing joint, causing the deformable sealing joint to undergo a preset deformation, so as to form a sealed connection with the pipe interface.

[0020] In one embodiment, the extrusion section of the pump tube is arc-shaped;

[0021] The specified assembly direction is a linear direction, and in the linear direction:

[0022] The distance between the center of the extrusion section and the outer end face of the deformation sealing joint is greater than the distance between the rotation center of the roller assembly and the sealing pressing surface.

[0023] In one embodiment, a linear guide structure is provided between the pipe rack and the pump base;

[0024] The linear guide structure includes a linear guide groove extending along the specified assembly direction and a guide slider that matches the linear guide groove.

[0025] In this configuration, one of the linear guide groove and the guide slider is disposed on the pipe support, and the other is disposed on the pump base. When the guide slider and the linear guide groove are engaged, the extrusion section of the pump pipe is aligned with the roller assembly, and the deformation sealing joint is aligned with the pipe interface.

[0026] In one embodiment, a limiting component is provided between the pipe rack and the pump pipe;

[0027] The limiting component includes an axial limiting part disposed on the outer wall of the pump pipe and a limiting mating part disposed within the pipe frame;

[0028] The limiting fitting part and the axial limiting part form an axial constraint along the designated assembly direction.

[0029] In one embodiment, a sealing positioning assembly is provided between the pipe rack and the deformation sealing joint;

[0030] The sealing and positioning assembly includes a positioning ring disposed on the pipe rack. The positioning ring is sleeved on the pump pipe and its axial direction abuts against the side of the deformable sealing joint away from the sealing pressure surface.

[0031] In one embodiment, the sealing positioning assembly further includes a stop portion disposed on the outer wall of the pump pipe, wherein the stop portion and the deformation sealing joint form an annular positioning groove, and the positioning ring is embedded in the annular positioning groove.

[0032] In one embodiment, the side of the deformable sealing joint facing the sealing pressure surface is a planar extrusion surface; and / or,

[0033] The pipe interface is located within the orthographic projection of the deformable sealing joint onto the sealing pressure surface.

[0034] In one embodiment, the pump base is provided with an assembly cavity, the roller assembly and the pipe interface are both disposed within the assembly cavity, and the pipe support forms an insertion fit with the assembly cavity along the designated assembly direction; and / or,

[0035] The pipe rack includes a main frame and a pipe housing located within the main frame, wherein the pump pipe is fixed within the pipe housing and the deformation sealing joint extends to the outside of the pipe housing.

[0036] In one embodiment, a locking mechanism is further provided between the pipe rack and the pump base. The locking mechanism is used to lock the pipe rack onto the pump base and apply a directional force along the specified assembly direction to the pipe rack during the locking process.

[0037] The pipe support drives the extrusion section of the pump pipe toward the roller assembly through the directional force until a preset working deformation is generated, and drives the deformation sealing joint toward the pipe interface until the deformation sealing joint generates a preset deformation and forms a sealed connection with the pipe interface.

[0038] In one embodiment, the locking mechanism includes a locking rod rotatably disposed on the pipe rack and a locking engagement portion disposed on the pump base;

[0039] The end of the locking rod is provided with an arc-shaped locking part;

[0040] The locking engagement portion includes an inlet channel extending along the specified assembly direction, a locking cavity communicating with the inlet channel, and a locking protrusion opposite to the locking cavity;

[0041] The contour of the locking cavity matches the rotation trajectory of the arc-shaped latching part, and the width of the guide channel allows the arc-shaped latching part to pass through and enter the locking cavity along the specified assembly direction. When the locking rod rotates to the locking position, the arc-shaped latching part is misaligned with the guide channel and is opposite to the locking protrusion.

[0042] Compared with the prior art, this utility model has at least the following beneficial effects:

[0043] This utility model's pump tube quick-change module pre-integrates the pump tube and tube frame into an integral module (pump tube module), and then achieves rapid positioning through the directional coupling of the tube frame and pump base (along a specified assembly direction). This allows for the complete disassembly and replacement of the pump tube module, eliminating the need for disassembly of components such as the pump housing, fasteners, and sealing rings, thus improving replacement efficiency and convenience.

[0044] Simultaneously, the directional coupling between the pipe support and the pump base triggers a dual automatic deformation mechanism: the roller assembly compresses the pump pipe to generate a preset working deformation to establish pumping power, while the sealing pressure surface of the pump base squeezes and deforms the sealing joint to generate a preset deformation, forming a planar seal, thus creating a sealed connection between the deformation sealing joint and the pipe interface. This process simultaneously completes the working deformation of the pump pipe and the sealing deformation of the joint with a single assembly action, eliminating the need for step-by-step operations or manual adjustments, thereby improving installation efficiency.

[0045] In addition, this utility model pre-integrates the pump pipe and pipe rack into an integral module (pump pipe module), which supports the immediate replacement and use of the pump pipe module, eliminates downtime maintenance time, and ensures production continuity. Attached Figure Description

[0046] Figure 1 This is a schematic diagram of the pump tube quick-change module in one embodiment;

[0047] Figure 2 This is a schematic diagram of the pump tube module and pump base after separation in one embodiment;

[0048] Figure 3 This is an exploded view of a pump tube quick-change module in one embodiment;

[0049] Figure 4 This is an exploded view of the pump tube module in one embodiment;

[0050] Figure 5 This is a schematic diagram of the pump pipe structure in one embodiment;

[0051] Figure 6 This is a schematic diagram of the pump tube module in one embodiment;

[0052] Figure 7 This is a schematic diagram of the pump base in one embodiment;

[0053] Figure 8 for Figure 7 A magnified view of a portion of point A in the middle.

[0054] The reference numerals in the accompanying drawings include:

[0055] 100 - Pump base; 110 - Upper seat; 120 - Base; 130 - Back seat; 140 - Assembly cavity; 150 - Sealing pressure surface;

[0056] 200-Pump pipe module; 210-Pipe rack; 211-Main frame; 212-Pipe body housing; 220-Pump pipe; 221-Extrusion section; 222-Conveying section; 223-Deformation sealing joint;

[0057] 300-roller assembly;

[0058] 400-pipe interface;

[0059] 510 - Linear guide groove; 520 - Guide slider;

[0060] 610 - Axial limiting part; 620 - Limiting mating part; 621 - Square groove; 622 - Baffle wall;

[0061] 700 - Positioning Ring;

[0062] 800-Locking mechanism; 810-Locking rod; 811-Arc-shaped locking part; 820-Locking mating part; 821-Inlet channel; 822-Locking cavity; 823-Locking protrusion; 830-Rotating handle; 840-Moving groove. Detailed Implementation

[0063] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments.

[0064] As described in the background section, the replacement of the pump tube of the existing peristaltic pump has the problem of low replacement efficiency. This is mainly because the pump tube of the existing peristaltic pump is an independent component. When replacing it, it is necessary to remove all the components that mate with it, such as the pump housing, fasteners, and sealing rings. During installation, in order to ensure the sealing effect, the sealing rings need to be rematched, which makes the entire replacement operation process relatively complicated and inconvenient.

[0065] To address the aforementioned issues, this utility model provides a pump pipe quick-change module that integrates the pump pipe 220 and the pipe support 210 into a modular structure. This allows for the complete disassembly and assembly of the pump pipe 220 and the pipe support 210, simplifying the replacement operation and improving convenience.

[0066] Specifically, the pump tube quick-change module provided in this embodiment includes:

[0067] Pump base 100, which integrates roller assembly 300 and pipe interface 400;

[0068] The pump pipe module 200 includes a pipe frame 210 that is detachably coupled with the pump base 100 and a pump pipe 220 integrated on the pipe frame 210. The port of the pump pipe 220 is provided with a deformation sealing joint 223.

[0069] Specifically, when the pipe support 210 is coupled to the pump base 100 along the specified assembly direction:

[0070] The roller assembly 300 compresses the pump tube 220 to produce a preset working deformation;

[0071] The sealing pressure surface 150 of the pump base 100 synchronously presses and deforms the sealing joint 223, causing the deformation sealing joint 223 to undergo a preset deformation, so as to form a sealed connection with the pipe interface 400.

[0072] According to the pump tube quick-change module of this utility model embodiment, the pump tube 220 and the tube frame 210 are pre-integrated into an integral module (pump tube module 200), and then the tube frame 210 and the pump base 100 are directionally coupled (along a specified assembly direction) to achieve rapid positioning. This allows for the complete disassembly and replacement of the pump tube module 200, eliminating the need for disassembly of components such as the pump housing, fasteners, and sealing rings, thus improving replacement efficiency and convenience.

[0073] Simultaneously, the directional coupling between the pipe support 210 and the pump base 100 triggers a dual automatic deformation mechanism: the roller assembly 300 compresses the pump pipe 220 to generate a preset working deformation to establish pumping power, while the sealing pressure surface 150 of the pump base 100 compresses and deforms the sealing joint 223 to generate a preset deformation, forming a planar seal, thus creating a sealed connection between the deformation sealing joint 223 and the pipe interface 400. This process simultaneously completes the working deformation of the pump pipe 220 and the sealing deformation of the joint with a single assembly action, eliminating the need for step-by-step operations or manual adjustments, thereby improving installation efficiency.

[0074] In addition, this utility model pre-integrates the pump pipe 220 and the pipe rack 210 into an integral module (pump pipe module 200), which supports the immediate replacement and use of the pump pipe module 200, eliminates downtime maintenance time, and ensures production continuity.

[0075] The pump pipe quick-change module provided in the embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0076] Figure 5 This is a schematic diagram of the pump pipe 220 in this embodiment. Figure 5 As shown, the pump pipe 220 in this embodiment is U-shaped, with a central extrusion section 221 and two side conveying sections 222. The extrusion section 221 has an arc-shaped pipe structure, used to work in conjunction with the roller assembly 300, i.e., interacting with the roller assembly 300 to generate a peristaltic conveying effect. The conveying sections 222 are straight extension pipe sections, with the two side conveying sections 222 respectively connected to the two ends of the extrusion section 221. The conveying sections 222 mainly provide a stable medium channel and connect to the deformation sealing joint 223. The straight pipe section design facilitates the accurate positioning of the deformation sealing joint 223.

[0077] See also Figure 5In this embodiment, there are two deformation sealing joints 223, which are respectively disposed at the two openings of the pump pipe 220 (i.e., the ends of the two conveying sections 222). See also Figure 6 The deformation sealing joint 223 can be specifically configured as a flange shape coaxial with the port of the pump pipe 220, with a flat planar extrusion surface, which facilitates uniform pressure distribution and ensures reliable deformation. The coaxial configuration also ensures the alignment of the seal. At the same time, to ensure the deformation effect, the deformation sealing joint 223 is made of a flexible deformable material, preferably the same material as the pump pipe 220, such as silicone, to ensure the consistency of material properties.

[0078] Furthermore, in this embodiment, the outer diameter (flange outer diameter) of the deformation sealing joint 223 is larger than the outer diameter of the pipe interface 400 on the pump base 100. With this configuration, when aligned, the pipe interface 400 is located within the orthographic projection of the deformation sealing joint 223 onto the sealing pressure surface 150. The outer edge of the flange can extend beyond the outer periphery of the pipe interface 400, forming a complete annular coverage area. This ensures the sealing surface completely encompasses the pipe interface 400, eliminating the risk of edge leakage. Additionally, it provides sufficient deformation contact area, enhancing sealing reliability, accommodating certain installation deviations, and ensuring stable sealing performance under various operating conditions.

[0079] Figure 6 This is a schematic diagram of the pump pipe module 200 in this embodiment. Figure 4 This is an exploded view of the pump pipe module 200 in this embodiment. Figure 6 and Figure 4 As shown, the tube rack 210 in this embodiment includes a main frame 211 and a tube receiving portion 212 disposed within the main frame 211. The main frame 211 is U-shaped. This U-shape ensures that the outline of the main frame 211 matches the direction of the pump tube 220, while creating an open clearance area in the middle. The two sides of the frame form support structures that provide stable support. This configuration provides ample operating space for the roller assembly 300 within the clearance area, and the U-shaped structure naturally guides the pump tube 220 to form a working arc segment, ensuring precise alignment between the extrusion section 221 and the roller assembly 300.

[0080] The pipe body receiving portion 212 of the pipe rack 210 is used to receive the pump pipe 220, see [reference]. Figure 4 It adopts a U-shaped receiving groove design that matches the shape of the pump pipe 220. Specifically, the receiving groove is a groove extending along the inner contour of the U-shaped main frame 211. The openings of the receiving grooves at each position of the pump pipe 220 all point to the inner side of the main frame 211, so that the pump pipe 220 can be naturally embedded along the direction of the groove, ensuring that the shape of the working section remains stable. This achieves a high degree of integration between the pump pipe 220 and the pipe rack 210, which not only ensures the positioning accuracy of the components, but also maintains the ideal geometric shape of the working section of the pump pipe 220.

[0081] Additionally, see Figure 6 The deformation sealing joints 223 at both ends of the pump pipe 220 are located on the outside of the pipe body receiving part 212 (i.e., receiving groove). Here, the outside refers to the outside of the front end (open end) of the main frame 211, so as to ensure that during the process of assembling the pipe frame 210 to the pump base 100, the deformation sealing joints 223 can preferentially contact the sealing pressure surface 150 of the back seat 130, thereby ensuring the planar seal between the two.

[0082] Furthermore, in this embodiment, a sealing positioning component is also provided between the pipe support 210 and the deformation sealing joint 223 to ensure the precise positioning of the deformation sealing joint 223, thereby maintaining the axial stability of the sealing interface. Specifically, as follows... Figures 4 to 6 As shown, the sealing and positioning assembly of this embodiment includes a positioning ring 700 disposed at the front end of the pipe support 210. The positioning ring 700 is sleeved on the pump pipe 220 and tightly fitted with the inner end face of the deformation sealing joint 223. Here, the inner end face of the deformation sealing joint 223 refers to the end face of the deformation sealing joint 223 facing the extrusion section 221. In addition, corresponding to the design of two deformation sealing joints 223, this embodiment also sets two positioning rings 700, which are respectively located inside the two deformation sealing joints 223. With this setting, the deformation sealing joint 223 is kept in the preset extended position by mechanical limiting. During the assembly process, the sealing joint is guided to contact the sealing surface of the back seat 130 first, and the axial position stability is maintained during the extrusion deformation process. The inner arrangement of the positioning ring 700 does not affect the deformation freedom of the sealing joint, and can accurately control its working position, which significantly improves the sealing reliability.

[0083] Furthermore, this embodiment also includes a stop (not shown in the figure) on the outer wall of the pump pipe 220. This stop is an annular retaining ring structure integrally formed with the pump pipe 220, positioned adjacent to the deformation sealing joint 223. An annular positioning groove is formed between the stop and the deformation sealing joint 223, and the positioning ring 700 is precisely fitted into this groove. Its two end faces abut against the stop and the deformation sealing joint 223 respectively, achieving dual axial limiting. This structural design effectively enhances the axial positioning reliability of the deformation sealing joint 223, completely eliminating any axial displacement that may occur during operation, and ensuring that the sealing interface always maintains a stable contact state.

[0084] In this embodiment, the positioning ring 700 can be detachably and fixedly installed on the front end of the pipe rack 210. For example, the positioning ring 700 can be fixed to the front end of the pipe rack 210 through a snap-fit ​​connection mechanism. This setting allows the positioning ring 700 to be pre-assembled with the pump pipe 220 into an independent module, and then quickly connected to the pipe rack 210 through the snap-fit ​​mechanism. This simplifies the alignment and installation process of the positioning ring 700 and the pump pipe 220, realizes modular assembly, and improves the overall assembly efficiency.

[0085] Furthermore, in this embodiment, a limiting component is also provided between the pipe support 210 and the pump pipe 220 to achieve axial positioning of the two. Specifically, see... Figure 4 The limiting component in this embodiment includes two cooperating parts: an axial limiting part 610 disposed on the outer wall of the pump pipe 220, and a limiting fitting part 620 disposed within the pipe support 210. The axial limiting part 610 can be a protruding structure extending from the outer wall of the pump pipe 220, and can be manufactured using an integral molding process. Figure 4 An exemplary embodiment is shown where the axial limiting part 610 is square in shape. Correspondingly, the limiting fitting part 620 includes a groove, specifically a square groove 621 that matches the shape of the axial limiting part 610, and the opening direction of the square groove 621 is consistent with the opening direction of the receiving groove of the main frame 211, that is, both face the inside of the main frame 211. At the same time, both sides of the square groove 621 have baffles 622 for axial limiting. With this configuration, during the installation of the pump pipe 220, the pump pipe 220 is inserted into the receiving groove from the inside of the main frame 211. During this process, the axial limiting part 610 of the pump pipe 220 is simultaneously inserted into the square groove 621 from this side, and axial constraint is achieved by the baffles 622 on both sides, ensuring that the pump pipe 220 is accurately positioned, preventing the pump pipe 220 from moving axially, and facilitating the accurate fit between the extrusion section 221 of the pump pipe 220 and the roller assembly 300. This design achieves reliable axial positioning function through a simple mechanical structure, while maintaining ease of assembly.

[0086] Furthermore, in this embodiment, the limiting component adopts a dual-point positioning setting, for example, see... Figure 4 Two axial limiting parts 610 and two limiting mating parts 620 are provided. The two axial limiting parts 610 are symmetrically arranged on the pump pipe 220 near both ends of the extrusion section 221, while the limiting mating parts 620 are correspondingly arranged on the two inner sides of the main frame 211. This arrangement forms a double constraint structure, simultaneously implementing axial constraints at both ends of the extrusion section 221, effectively controlling the axial displacement of the working section of the pump pipe 220, ensuring the fitting accuracy between the extrusion section 221 and the roller assembly 300, preventing positional drift of the extrusion section 221 during operation, and maintaining a stable extrusion deformation effect.

[0087] Figure 7This is a three-dimensional structural schematic diagram of the pump base 100 in this embodiment. (As shown...) Figure 7 As shown, the pump base 100 in this embodiment also adopts a modular structure design. The pump base 100 specifically consists of three main structural components: an upper base 110, a base 120, and a back seat 130. The upper base 110 and base 120 are arranged vertically parallel to each other, maintaining a preset distance between them. The back seat 130 is fixedly connected vertically to the rear ends of the upper base 110 and base 120. This allows the three components to be connected into a single integrated structure, forming a modular pump base 100. This facilitates the complete disassembly and replacement of the pump assembly, which consists of modules such as the pump pipe 220 and the pump base 100, and makes the installation, removal, and maintenance of the pump assembly easier.

[0088] See also Figure 7 In this embodiment, the upper seat 110, the base 120, and the back seat 130 together form a central receiving cavity. This central receiving cavity serves as a dedicated assembly cavity 140 for the pump tube module 200, used to accommodate and position the pump tube module 200. Correspondingly, to ensure the functional cooperation between the pump tube module 200 and the roller assembly 300 and the pipe interface 400, both the roller assembly 300 and the pipe interface 400 are disposed in the assembly cavity 140 of the pump seat 100. This allows the pump tube module 200 to automatically achieve a pressing fit with the roller assembly 300 and a sealing connection with the pipe interface 400 after being assembled into the cavity in a specified direction.

[0089] Specifically, in this embodiment, the roller assembly 300 is integrated into the pump base 100. The roller assembly 300 is located in the assembly cavity 140, and the upper end of the roller assembly 300 is connected to the upper seat 110 through a rotating shaft to form a rotating pair, and the lower end is connected to the base 120 through a rotating shaft to form a rotating pair, so as to ensure that the roller assembly 300 is stably supported in the assembly cavity 140.

[0090] The specific position of the roller assembly 300 in the assembly cavity 140 can be the outer end region of the assembly cavity 140. The outer end region can be understood as the region of the assembly cavity 140 away from the back seat 130, so as to facilitate the cooperation between the roller assembly 300 and the extrusion section 221 of the pump pipe 220.

[0091] See Figure 3In this embodiment, the pipe interface 400 integrated into the pump base 100 can be located within the assembly cavity 140, for example, integrated into the inner wall of the back seat 130 facing the assembly cavity 140, so that the pump pipe 220 can mate with the pipe interface 400 after being assembled into the assembly cavity 140. Furthermore, corresponding to the two ports of the pump pipe 220, two pipe interfaces 400 are also provided on the inner wall of the back seat 130, used for feeding and discharging respectively. Thus, when the two ports of the pump pipe 220 are connected to the two ports of the pump pipe 220 respectively, feeding and discharging of the pump pipe 220 can be achieved. It should be understood that the pipe interface 400 in this embodiment can be connected to an external feeding / discharging terminal through a flow channel / pipeline built into the back seat 130.

[0092] For the structural design corresponding to the pipe interface 400 integrated into the back seat 130, see Figure 3 In this embodiment, the sealing pressure surface 150 in the pump base 100 for cooperating with the deformation sealing joint 223 refers to the inner wall surface of the back seat 130 facing the assembly cavity 140. When the deformation sealing joint 223 of the pump pipe module 200 is pressed against the inner wall surface of the back seat 130 to form a planar seal, the deformation sealing joint 223 is just connected to the corresponding pipe interface 400.

[0093] Figure 1 This is a schematic diagram of the overall structure of the pump tube quick-change module in this embodiment; Figure 2 This is a schematic diagram showing the structure of the pump tube module after it has been removed from the pump base. Figure 1 As shown, in this embodiment, the pump pipe module 200 is integrally inserted into the assembly cavity 140 of the pump base 100. That is, the detachable fit between the pipe bracket 210 and the pump base 100 in this embodiment is a plug-in fit. Specifically, as follows: Figure 1 and Figure 2 As shown, the pipe rack 210 is inserted into the assembly cavity 140 in a direction perpendicular to the inner wall of the back seat 130, forming a precisely positioned insertion fit with the pump base 100. Corresponding to this structural design, the designated assembly direction of the pipe rack 210 refers to the direction perpendicular to the inner wall of the back seat 130, i.e. Figure 2 The X direction shown is used here for ease of description; some descriptions of specific assembly directions will be replaced with the X direction below. This design facilitates the quick insertion and removal of the pump tube module 200, offering greater convenience compared to other mating methods and improving replacement efficiency.

[0094] Further, see Figure 1 and Figure 2In this embodiment, the outer contour of the pipe rack 210 matches the outer contour of the assembly cavity 140. Specifically, the thickness of the main frame 211 is the same as the thickness of the assembly cavity 140, the width is the same as the width of the assembly cavity 140, and the radius of curvature of the arc-shaped segment (the end opposite the opening of the pipe rack 210) matches the radius of curvature of the end of the upper seat 110 / base 120. This configuration ensures that the outer surface of the pump unit is flush and the overall contour is regular after the pipe rack 210 is assembled to the pump base 100. This significantly improves the overall appearance and protective performance of the equipment while enabling quick insertion and removal.

[0095] In this embodiment, a linear guide structure is also provided between the pipe support 210 and the pump base 100 to ensure the directional assembly of the pump pipe module 200 and to achieve precise alignment of the pump pipe 220 with the roller assembly 300 and the deformation sealing joint 223 with the pipe interface 400. Specifically, see... Figure 3 The linear guide structure of this embodiment may include a linear guide groove 510 extending along a specified assembly direction and a guide slider 520 matching the linear guide groove 510. One of the linear guide groove 510 and the guide slider 520 is disposed on the pipe support 210, and the other is disposed on the pump base 100, for example... Figure 3 An exemplary embodiment is shown in which the linear guide groove 510 is disposed on the upper seat 110 and the base 120, and the guide slider 520 is disposed on the pipe support 210. Furthermore, when the guide slider 520 and the linear guide groove 510 are engaged, the extrusion section 221 of the pump pipe 220 is aligned with the roller assembly 300, and the deformation sealing joint 223 is aligned with the pipe interface 400. This alignment can be understood as the two being axially opposite each other in the X direction.

[0096] It should be noted that this embodiment does not limit the number of linear guide grooves 510 and guide sliders 520. Figure 3 The example illustrates an implementation in which the bottom surface of the tube rack 210 has two sets of linear guide grooves 510 and guide sliders 520 between the base 120 and the bottom surface of the tube rack 210, and the upper surface of the tube rack 210 also has two sets of linear guide grooves 510 and guide sliders 520 between the upper surface of the tube rack 210 and the upper seat 110.

[0097] Furthermore, in this embodiment, the arrangement between the extrusion section 221 of the pump pipe 220 and the deformation sealing joint 223, and between the roller assembly 300 and the pipe interface 400, also satisfies the following conditions: the extrusion section 221 of the pump pipe 220 is arc-shaped, the designated assembly direction of the pipe support 210 is a linear direction, i.e., the X direction, and in this linear direction, the axial distance between the center of the circle containing the extrusion section 221 and the outer end face of the deformation sealing joint 223 is greater than the axial distance between the rotation center of the roller assembly 300 and the sealing pressure surface 150. It should be understood that during the installation of the pump pipe 220, it is usually necessary to arrange the center of the circle containing the extrusion section 221 of the pump pipe 220 concentrically with the rotation center of the roller assembly 300 to achieve uniform extrusion of the extrusion section 221 of the pump pipe 220 by the roller assembly 300, thereby ensuring a uniform pumping effect. Based on this, this embodiment controls the axial distance between the center of the circle where the extrusion section 221 is located and the outer end face of the deformation sealing joint 223 to be greater than the axial distance between the rotation center of the roller assembly 300 and the sealing pressure surface 150. This ensures that when the pump pipe 220 is assembled to the point where the center of the extrusion section 221 coincides with the rotation center of the roller assembly 300, and the extrusion section 221 undergoes a preset working deformation, the deformation sealing joint 223 at the front end of the pump pipe 220 has already been in contact with the sealing pressure surface 150 of the pump seat 100 and is subjected to pressure to produce a preset deformation. Thus, double deformation is achieved through a single insertion action, eliminating the step-by-step adjustment process and realizing true one-step assembly. This synchronous mechanism significantly improves installation efficiency and system reliability.

[0098] See Figure 3 In this embodiment, a locking mechanism 800 is also provided between the pipe support 210 and the pump base 100. The locking mechanism 800 is used to lock the pipe support 210 onto the pump base 100 and apply a directional force along a specified assembly direction to the pipe support 210 during the locking process. The pipe support 210 drives the extrusion section 221 of the pump pipe 220 towards the roller assembly 300 through the directional force until a preset working deformation is generated, and drives the deformation sealing joint 223 towards the pipe interface 400 until the deformation sealing joint 223 generates a preset deformation and forms a sealed connection with the pipe interface 400. This configuration allows for the simultaneous locking of the pump pipe module 200 and the pump base 100, the working deformation of the extrusion section 221 of the pump pipe 220, and the sealing deformation of the deformation sealing joint 223, achieving one-step assembly.

[0099] For details, see Figure 3 , Figure 4 and Figure 8 The locking mechanism 800 includes a locking rod 810 rotatably mounted on the pipe rack 210 and a locking engagement part 820 mounted on the pump base 100. The upper and lower ends of the locking rod 810 extend to form arc-shaped engagement parts 811, which have a semi-cylindrical profile.

[0100] See Figure 7 and Figure 8 The locking engagement part 820 is located at the end of the upper seat 110 and the base 120 away from the back seat 130, and specifically includes an inlet channel 821, a locking cavity 822, and a locking protrusion 823. The contour of the locking cavity 822 matches the rotation trajectory of the arc-shaped engaging part 811. For example, corresponding to the semi-cylindrical arc-shaped engaging part 811, the locking cavity 822 can be a cylindrical cavity with the same diameter as the arc-shaped engaging part 811, allowing the arc-shaped engaging part 811 to rotate within the locking cavity 822 after entering it. Furthermore, the locking rod 810 and the locking cavity 822 also satisfy the following condition: when the pipe rack 210 is aligned with the pump base 100 in the X direction, the center line of the locking rod 810 is coplanar with the center line of the locking cavity 822, ensuring that the arc-shaped engaging part 811 can rotate along the inner wall of the locking cavity 822 after entering it.

[0101] See also Figure 8 The inlet channel 821 extends from the outer end of the pump base 100 to the locking cavity 822, allowing the locking cavity 822 to communicate with the outside through the inlet channel 821. The inlet channel 821 extends through the cavity in the X direction. Furthermore, the width of the inlet channel 821 allows the arc-shaped latching part 811 to pass through and enter the locking cavity 822; for example, the width of the inlet channel 821 is exactly equal to the radius of the arc-shaped latching part 811.

[0102] The locking protrusion 823 is used to limit the arc-shaped latching portion 811 when it is in the locked position. For details, see [link to details]. Figure 8 In the X direction, the inlet channel 821 is directly opposite one half of the locking cavity 822, while the locking protrusion 823 is directly opposite the other half of the locking cavity 822. Figure 8 In the left and right directions, the import channel 821 and the locking protrusion 823 are opposite each other.

[0103] Based on the above structural design, the locking process is as follows:

[0104] First, rotate the locking rod 810 to the unlocked position, and then insert the pipe rack 210 into the pump base 100 along the X direction. During this process, the arc-shaped locking part 811 of the locking rod 810 enters the locking cavity 822 through the guide channel 821. Since the locking rod 810 has not yet rotated to the locked position, and the deformation sealing joint 223 axially limits the pipe rack 210, the rotation center of the arc-shaped locking part 811 at this time does not coincide with the center of the locking cavity 822. Specifically, the rotation center of the arc-shaped locking part 811 is located outside the center of the locking cavity 822.

[0105] Then, the locking rod 810 is rotated counterclockwise to the locking position, so that the arc surface of the arc-shaped locking part 811 moves along the arc-shaped inner wall of the locking cavity 822. During this process, based on the limiting and guiding of the arc-shaped inner wall of the locking cavity 822, the arc-shaped locking part 811 will gradually move until its rotation center coincides with the center of the locking cavity 822. That is to say, during the rotation, the arc-shaped locking part 811 will have a certain axial displacement in the X direction. This axial displacement will apply a directional force in the X direction to the pipe support 210 until the extrusion section 221 of the pump pipe 220 and the deformation sealing joint 223 reach the preset working deformation.

[0106] Finally, after the arc-shaped locking part 811 rotates 180 degrees, it aligns with the locking protrusion 823 on the outside of the locking cavity 822, and at the same time forms a misalignment with the inlet channel 821. At this time, the locking protrusion 823 limits the arc-shaped locking part 811 in the X direction, thereby realizing the locking of the pump tube module 200 and the pump seat 100.

[0107] Conversely, the unlocking process involves rotating the locking rod 810 clockwise to align the arc-shaped locking part 811 with the inlet channel 821, after which the pump tube module 200 can be pulled out.

[0108] Further, see Figure 1 and Figure 4 A rotating handle 830 is fixedly connected to the middle of the locking rod 810. The rotating handle 830 is perpendicular to the locking rod 810. A horizontally extending movable groove 840 is provided at the end of the pipe rack 210, and the rotating handle 830 is placed in the movable groove 840. With this configuration, driving the rotating handle 830 to move clockwise or counterclockwise along the movable groove 840 can drive the rotation of the locking rod 810, thereby locking or unlocking the pipe rack 210 and the pump base 100, which provides good ease of operation.

[0109] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0110] It should be noted that the illustrations provided in this embodiment are merely schematic representations of the basic concept of this utility model. The structures, proportions, sizes, etc., depicted in the accompanying drawings are only for illustrative purposes to aid those skilled in the art and to enable them to understand and read the content disclosed herein. They are not intended to limit the implementation conditions of this utility model. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by this utility model, should still fall within the scope of the technical content disclosed herein.

[0111] The orientations or positional relationships indicated by terms such as "upper," "lower," "left," "right," "middle," "longitudinal," "transverse," "horizontal," "inner," "outer," "radial," and "circumferential" used in this specification are based on the orientations or positional relationships shown in the accompanying drawings and are only for the purpose of simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

Claims

1. A quick-change module for pump pipes, characterized in that, include: Pump base (100), the pump base (100) integrating roller assembly (300) and pipe interface (400); The pump tube module (200) includes a tube frame (210) detachably coupled to the pump base (100) and a pump tube (220) integrated on the tube frame (210), wherein the port of the pump tube (220) is provided with a deformation sealing joint (223); When the pipe rack (210) is coupled to the pump base (100) along the specified assembly direction: The roller assembly (300) compresses the pump tube (220) to produce a preset working deformation; The sealing pressure surface (150) of the pump base (100) simultaneously presses the deformable sealing joint (223), causing the deformable sealing joint (223) to undergo a preset deformation, so as to form a sealed connection with the pipe interface (400).

2. The pump pipe quick-change module according to claim 1, characterized in that, The extrusion section (221) of the pump pipe (220) is arc-shaped; The specified assembly direction is a linear direction, and in the linear direction: The distance between the center of the extrusion section (221) and the outer end face of the deformation sealing joint (223) is greater than the distance between the rotation center of the roller group (300) and the sealing pressing surface (150).

3. The pump pipe quick-change module according to claim 1, characterized in that, A linear guide structure is provided between the pipe rack (210) and the pump base (100); The linear guide structure includes a linear guide groove (510) extending along the specified assembly direction and a guide slider (520) matching the linear guide groove (510); One of the linear guide groove (510) and the guide slider (520) is disposed on the pipe rack (210), and the other is disposed on the pump base (100). When the guide slider (520) and the linear guide groove (510) are engaged, the extrusion section (221) of the pump pipe (220) is aligned with the roller assembly (300), and the deformation sealing joint (223) is aligned with the pipe interface (400).

4. The pump pipe quick-change module according to claim 1, characterized in that, A limiting component is provided between the pipe rack (210) and the pump pipe (220); The limiting component includes an axial limiting part (610) disposed on the outer wall of the pump pipe (220) and a limiting mating part (620) disposed in the pipe rack (210); The limiting fitting part (620) and the axial limiting part (610) form an axial constraint along the designated assembly direction.

5. The pump pipe quick-change module according to claim 1, characterized in that, A sealing and positioning assembly is provided between the pipe rack (210) and the deformation sealing joint (223); The sealing positioning assembly includes a positioning ring (700) disposed on the pipe rack (210), the positioning ring (700) being sleeved on the pump pipe (220), and its axial abutment against the side of the deformable sealing joint (223) away from the sealing pressure surface (150).

6. The pump pipe quick-change module according to claim 5, characterized in that, The sealing and positioning assembly also includes a stop portion disposed on the outer wall of the pump pipe (220), and an annular positioning groove is formed between the stop portion and the deformation sealing joint (223), and the positioning ring (700) is embedded in the annular positioning groove.

7. The pump pipe quick-change module according to claim 1, characterized in that, The side of the deformable sealing joint (223) facing the sealing pressing surface (150) is a planar extrusion surface; and / or, The pipe interface (400) is located within the orthographic projection of the deformable sealing joint (223) onto the sealing pressure surface (150).

8. The pump pipe quick-change module according to claim 1, characterized in that, The pump base (100) is provided with an assembly cavity (140), the roller assembly (300) and the pipe interface (400) are both disposed within the assembly cavity (140), and the pipe support (210) forms an insertion fit with the assembly cavity (140) along the specified assembly direction; and / or, The pipe rack (210) includes a main frame (211) and a pipe housing (212) disposed within the main frame (211), wherein the pump pipe (220) is fixed within the pipe housing (212) and the deformation sealing joint (223) extends to the outside of the pipe housing (212).

9. The pump pipe quick-change module according to claim 1, characterized in that, A locking mechanism (800) is also provided between the pipe rack (210) and the pump base (100). The locking mechanism (800) is used to lock the pipe rack (210) onto the pump base (100) and apply a directional force along the specified assembly direction to the pipe rack (210) during the locking process. The pipe rack (210) drives the extrusion section (221) of the pump pipe (220) toward the roller assembly (300) by the directional force until a preset working deformation is generated, and drives the deformation sealing joint (223) toward the pipe interface (400) until the deformation sealing joint (223) generates a preset deformation and forms a sealed connection with the pipe interface (400).

10. The pump tube quick-change module according to claim 9, characterized in that, The locking mechanism (800) includes a locking rod (810) rotatably mounted on the pipe rack (210) and a locking engagement part (820) mounted on the pump base (100); The locking rod (810) has an arc-shaped snap-fit ​​part (811) at its end; The locking engagement part (820) includes an inlet channel (821) extending along the specified assembly direction, a locking cavity (822) communicating with the inlet channel (821), and a locking protrusion (823) opposite to the locking cavity (822); The contour of the locking cavity (822) matches the rotation trajectory of the arc-shaped latching part (811). The width of the guide channel (821) allows the arc-shaped latching part (811) to pass through and enter the locking cavity (822) along the specified assembly direction. When the locking rod (810) rotates to the locking position, the arc-shaped latching part (811) is misaligned with the guide channel (821) and is opposite to the locking protrusion (823).

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