Peristaltic pump and beverage machine

Abstract

The utility model discloses a peristaltic pump and a beverage machine, and relates to the technical field of liquid pumps, the peristaltic pump comprises a first conveying assembly, a second conveying assembly, a driving part and a rotating shaft, the first conveying assembly and the second conveying assembly are used for enabling a first pipeline and a second pipeline to discharge liquid respectively, and the driving part is provided with a power output shaft; the rotating shaft is movably arranged on the power output shaft in the axial direction and is in transmission connection with the power output shaft. According to the peristaltic pump disclosed by the utility model, the first conveying assembly and the second conveying assembly can be respectively driven to rotate independently through the position movement of the rotating shaft, so that independent liquid discharge of the first pipeline and the second pipeline can be realized, and the first conveying assembly and the second conveying assembly are driven by the same group of driving piece and rotating shaft; the cost of the whole equipment can be reduced, and the equipment size is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid pumps, and more specifically to a peristaltic pump and a beverage machine. Background Art

[0002] The peristaltic pumps in the prior art are usually designed in the form of single motor + single pump head + single discharge pipe or single motor + single pump body + double discharge pipe. When a peristaltic pump in the form of single motor + single pump head + single discharge pipe needs to transport multiple materials, it is necessary to install multiple peristaltic pumps to transport the various materials respectively, which occupies a large space and has a high cost; a peristaltic pump in the form of single motor + single pump body + double discharge pipe can only transport two materials at the same time, but cannot transport the two materials separately.

[0003] Therefore, how to reduce the volume of the peristaltic pump and realize the separate delivery of the two materials has become a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a peristaltic pump to reduce the volume of the peristaltic pump and realize the separate conveying of two materials.

[0005] Another object of the present invention is to provide a beverage machine including the peristaltic pump.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A peristaltic pump comprises a first conveying assembly, a second conveying assembly, a driving member and a rotating shaft;

[0008] The driving member has a power output shaft;

[0009] The rotating shaft is in transmission connection with the power output shaft, so that the power output shaft drives the rotating shaft to rotate;

[0010] The two ends of the rotating shaft along the axial direction can be respectively connected to the first conveying assembly and the second conveying assembly, and can be located at a first position and a second position under the drive of the power output shaft, wherein the first position refers to a position where the rotating shaft is connected to the first conveying assembly and is disconnected from the second conveying assembly, and the second position refers to a position where the rotating shaft is connected to the second conveying assembly and is disconnected from the first conveying assembly;

[0011] The first conveying assembly is used to be driven by the driving member to make the first pipeline discharge liquid when the rotating shaft is located at the first position;

[0012] The second conveying assembly is used to be driven by the driving member to discharge liquid from the second pipeline when the rotating shaft is located at the second position.

[0013] Optionally, in the above peristaltic pump, the first conveying assembly is provided with a first driving mating portion, the second conveying assembly is provided with a second driving mating portion, and both ends of the rotating shaft are provided with a first rotating driving portion and a second rotating driving portion respectively;

[0014] When the rotating shaft is located at a first position, the first rotating driving part is transmission-connected with the first driving matching part, and the second rotating driving part and the second driving matching part are transmission-connected; when the rotating shaft is located at a second position, the first rotating driving part and the first driving matching part are transmission-connected, and the second rotating driving part and the second driving matching part are transmission-connected.

[0015] Optionally, in the above peristaltic pump, the first rotation driving portion is a first external thread segment, and the first driving mating portion is a first internal thread segment threadably mated with the first external thread segment;

[0016] The second rotation driving portion is a second external thread segment, the second driving matching portion is a second internal thread segment threadably matched with the second external thread segment, and the first external thread segment and the second external thread segment have opposite rotation directions;

[0017] When the power output shaft rotates in a first direction, the rotating shaft moves from the second position to the first position. When the power output shaft rotates in a second direction opposite to the first direction, the rotating shaft moves from the first position to the second position.

[0018] Optionally, in the above peristaltic pump, the first conveying assembly, the second conveying assembly, the driving member and the rotating shaft are all arranged on a mounting housing, and the first conveying assembly includes:

[0019] A first slewing bearing seat is rotatably disposed on the mounting housing and is provided with a first transmission hole for the rotating shaft to be embedded, wherein the first driving matching portion is disposed in the first transmission hole;

[0020] The first rolling rotors are rotatably disposed on the first slewing support seat and are arranged at intervals in the circumferential direction around the first slewing support seat. The first rolling rotors are used to roll the first pipeline.

[0021] Optionally, in the above peristaltic pump, the second delivery component includes:

[0022] A second slewing bearing seat is rotatably disposed on the mounting housing and is provided with a second transmission hole for the rotating shaft to be embedded, the second driving matching portion is disposed in the second transmission hole, and the power output shaft is transmission-connected to the rotating shaft in the second transmission hole;

[0023] The second rolling rotors are rotatably disposed on the second slewing support seat and are arranged at intervals in the circumferential direction of the second slewing support seat. The second rolling rotors are used to roll the second pipeline.

[0024] Optionally, in the above-mentioned peristaltic pump, a first bearing plate and a first stopper are provided on the mounting housing, the first swivel bearing seat is provided on the mounting housing, and the first stopper is used to press the first swivel bearing seat against the first bearing plate; and / or,

[0025] The installation shell is provided with a second supporting plate and a second stopper, the second slewing bearing seat is provided on the installation shell, and the second stopper is used for pressing the second slewing bearing seat against the second supporting plate.

[0026] Optionally, in the above peristaltic pump, the first stopper and / or the second stopper is a glass ball top screw; and / or,

[0027] The number of the first stopper and / or the second stopper is one or more.

[0028] Optionally, in the above-mentioned peristaltic pump, a positioning shaft is provided on the mounting shell, and the first slewing bearing seat is rotatably provided on the positioning shaft via a bearing.

[0029] Optionally, in the above-mentioned peristaltic pump, the power output shaft has a transmission profile, and a transmission hole is opened on the rotating shaft, in which the power output shaft can be axially slidably embedded, and the transmission hole has a transmission matching profile opposite to the transmission profile.

[0030] Optionally, in the above peristaltic pump, a supporting spring for supporting the rotating shaft is also included.

[0031] A beverage machine comprises the peristaltic pump mentioned above.

[0032] The peristaltic pump provided by the utility model includes a first conveying component, a second conveying component, a driving member and a rotating shaft, wherein the first conveying component is used to discharge liquid from the first pipeline, the second conveying component is used to discharge liquid from the second pipeline, the driving member has a power output shaft, and the rotating shaft is movably arranged on the power output shaft along the axial direction and is transmission-connected with the power output shaft. The two ends of the rotating shaft along the axial direction can be transmission-connected with the first conveying component and the second conveying component respectively, and can be switched between the first position and the second position under the drive of the power output shaft, wherein the first position refers to the position where the rotating shaft is transmission-connected with the first conveying component and the transmission connection with the second conveying component is released, and the second position refers to the position where the rotating shaft is transmission-connected with the second conveying component and the transmission connection with the first conveying component is released.

[0033] When the rotating shaft is located at the first position, the driving member can drive the rotating shaft to drive the first conveying component to rotate. During the rotation, the first conveying component performs pulse squeezing and releasing on the first pipeline, thereby realizing the conveying of the liquid in the first pipeline. At the same time, the rotating shaft releases the transmission connection with the second conveying component to avoid driving the second conveying component to rotate synchronously, causing liquid to discharge from the second pipeline; when the rotating shaft is located at the second position, the driving member can drive the rotating shaft to drive the second conveying component to rotate. During the rotation, the second conveying component performs pulse squeezing and releasing on the second pipeline, thereby realizing the conveying of the liquid in the second pipeline. At the same time, the rotating shaft releases the transmission connection with the first conveying component to avoid driving the first conveying component to rotate synchronously, causing liquid to discharge from the first pipeline.

[0034] Compared with the prior art, the peristaltic pump provided by the utility model can drive the first conveying component and the second conveying component to rotate separately by moving the position of the rotating shaft, thereby realizing separate liquid discharge from the first pipeline and the second pipeline. It can be used in scenarios where multiple materials of a beverage machine need to be discharged separately, and the first conveying component and the second conveying component are driven by the same set of driving parts and rotating shaft, which can reduce the cost of the entire equipment and reduce the size of the equipment.

[0035] The beverage machine disclosed in the present invention includes the above-mentioned peristaltic pump. Due to the above-mentioned peristaltic pump, the beverage machine also has the above-mentioned beneficial effects. Other structures refer to the prior art and are not described here in detail. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0037] Figure 1This is a schematic diagram of the overall structure of the peristaltic pump disclosed in the embodiment of the utility model;

[0038] Figure 2 The internal structure of the peristaltic pump disclosed in the embodiment of the utility model is shown in FIG. Figure 1 ;

[0039] Figure 3 The internal structure of the peristaltic pump disclosed in the embodiment of the utility model is shown in FIG. Figure 2 ;

[0040] Figure 4 It is a cross-sectional view of the peristaltic pump disclosed in the embodiment of the utility model;

[0041] Figure 5 An exploded view of a peristaltic pump disclosed in an embodiment of the utility model;

[0042] Figure 6 It is a schematic diagram of the liquid discharge state of the first pipeline of the peristaltic pump disclosed in the embodiment of the utility model;

[0043] Figure 7 It is a schematic diagram of the liquid outlet state of the second pipeline of the peristaltic pump disclosed in the embodiment of the utility model.

[0044] Wherein, 100 is a mounting housing, 101 is a supporting spring, 110 is a cover plate, 111 is a first supporting plate, 112 is a first stopper, 113 is a bearing, 120 is a housing, 121 is a second supporting plate, and 122 is a second stopper;

[0045] 200 is a first slewing bearing seat, 210 is a rolling column;

[0046] 300 is a second slewing bearing seat;

[0047] 400 is a driving member, 410 is a power output shaft;

[0048] 500 is a rotation axis;

[0049] 600 is a first pipeline, and 610 is a second pipeline. DETAILED DESCRIPTION

[0050] The core of the utility model is to disclose a peristaltic pump to reduce the volume of the peristaltic pump and realize the separate conveyance of two materials.

[0051] Another core of the utility model is to disclose a beverage machine including the peristaltic pump.

[0052] The following is an explanation of the embodiments with reference to the accompanying drawings. In addition, the embodiments shown below do not limit the contents of the utility model described in the claims. In addition, the entire contents of the structures represented by the following embodiments are not limited to those necessary as solutions of the utility model described in the claims. It should be noted that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings. In the absence of conflict, the embodiments in the utility model and the features in the embodiments can be combined with each other.

[0053] Combination Figure 1-Figure 7 The peristaltic pump disclosed in the embodiment of the utility model includes a first conveying component, a second conveying component, a driving member 400 and a rotating shaft 500. The first conveying component is used to make the first pipeline 600 discharge liquid, and the second conveying component is used to make the second pipeline 610 discharge liquid. The driving member 400 has a power output shaft 410, and the rotating shaft 500 is axially movably arranged on the power output shaft 410 and is transmission-connected to the power output shaft 410.

[0054] The rotating shaft 500 can be transmission-connected to the first conveying assembly and the second conveying assembly at both ends along its axial direction, and can switch between the first position and the second position under the drive of the power output shaft 410, wherein the first position refers to the position where the rotating shaft 500 is transmission-connected to the first conveying assembly and the transmission connection with the second conveying assembly is released, and the second position refers to the position where the rotating shaft 500 is transmission-connected to the second conveying assembly and the transmission connection with the first conveying assembly is released. When the peristaltic pump is in the first state, the rotating shaft 500 moves to the first position and is transmission-connected with the first conveying component to drive the first conveying component to rotate. During the rotation, the first conveying component performs pulse squeezing and releasing on the first pipeline 600, thereby realizing the delivery of the liquid in the first pipeline 600. At the same time, the rotating shaft 500 releases the transmission connection with the second conveying component to avoid driving the second conveying component to rotate synchronously, causing liquid to discharge from the second pipeline 610. When the peristaltic pump is in the second state, the rotating shaft 500 moves to the second position and is transmission-connected with the second conveying component to drive the second conveying component to rotate. During the rotation, the second conveying component performs pulse squeezing and releasing on the second pipeline 610, thereby realizing the delivery of the liquid in the second pipeline 610. At the same time, the rotating shaft 500 releases the transmission connection with the first conveying component to avoid driving the first conveying component to rotate synchronously, causing liquid to discharge from the first pipeline 600.

[0055] Compared with the prior art, the peristaltic machine disclosed in the embodiment of the utility model can drive the first conveying component and the second conveying component to rotate separately by moving the position of the rotating shaft 500, thereby realizing the separate liquid discharge of the first pipeline 600 and the second pipeline 610. It can be used in the scenario where multiple materials of the beverage machine need to be discharged separately, and the first conveying component and the second conveying component are driven by the same group of driving parts 400 and the rotating shaft 500, which can reduce the cost of the whole equipment and reduce the size of the equipment.

[0056] The peristaltic pump includes a mounting housing 100, a first delivery assembly and a second delivery assembly are both rotatably disposed in the mounting housing 100, and respectively cooperate with the mounting housing 100 to squeeze the first pipeline 600 and the second pipeline 610 to discharge liquid, a driving member 400 and a rotating shaft 500 are also disposed on the mounting housing 100, and the mounting housing 100 protects the transmission structure between the first delivery assembly, the second delivery assembly, the driving member 400 and the rotating shaft 500. Among them, the rotating shaft 500 is disposed in the mounting housing 100, and the driving member 400 can be disposed in the mounting housing 100 or outside the mounting housing 100.

[0057] Specifically, a first driving mating part is provided on the first conveying assembly, a second driving mating part is provided on the second conveying assembly, and a first rotating driving part and a second rotating driving part are provided at both ends of the rotating shaft 500. When the rotating shaft 500 moves to the first position, the first rotating driving part is connected to the first driving mating part, and the second rotating driving part is disconnected from the second driving mating part, so that the first pipeline 600 can transport liquid; when the rotating shaft 500 moves to the second position, the first rotating driving part is disconnected from the first driving mating part, and the second rotating driving part is connected to the second driving mating part, so that the second pipeline 610 can transport liquid.

[0058] The first rotation driving part may be a first external thread segment, the first driving matching part may be a first internal thread segment corresponding to the thread of the first external thread segment, the second rotation driving part may be a second external thread segment, the second driving matching part may be a second internal thread segment corresponding to the thread of the second external thread segment, and the first external thread segment and the second external thread segment have opposite rotation directions. When the rotating shaft 500 moves to the first position, the first external thread segment is threadedly matched with the first internal thread segment, and the second external thread segment and the second internal thread segment are misaligned; when the rotating shaft 500 moves to the second position, the first external thread segment is misaligned with the first internal thread segment, and the second external thread segment and the second internal thread segment are threadedly matched.

[0059] When the power output shaft 410 rotates in the first direction, the rotating shaft 500 moves from the second position to the first position, and when the power output shaft 410 rotates in the second direction opposite to the first direction, the rotating shaft 500 moves from the first position to the second position. In this embodiment, the rotation direction of the driving member 400 (usually a motor) can be controlled to switch to achieve the movement of the rotating shaft 500 between the first position and the second position, and after moving into position, the rotating shaft 500 can drive the first conveying assembly and the second conveying assembly to rotate respectively.

[0060] In order to prevent the rotating shaft 500 from continuing to move axially after moving to the first position and the second position, a related limiting structure may be provided to limit further movement of the rotating shaft 500. For example, the limiting structure may be a bottom wall of the first transmission hole where the first internal thread is located, a bottom wall of the second transmission hole where the second internal thread is located, a limiting boss of the rotating shaft 500 itself (abutting against the first conveying assembly or the second conveying assembly for limiting position), and other structures.

[0061] In one embodiment, the first rotation driving portion may be a first transmission plane disposed on the outer peripheral wall of the first end of the rotation shaft 500, the first driving matching portion is a first matching plane that matches the first transmission plane for transmission, the second rotation driving portion may be a second transmission plane disposed on the outer peripheral wall of the second end of the rotation shaft 500, and the second driving matching portion is a second matching plane that matches the second transmission plane for transmission. When the rotation shaft 500 moves to the first position, the first transmission plane is opposite to the first matching plane (see Figure 4 The transmission matching form of the rotating shaft 500 and the power output shaft 410 is such that the rotating shaft 500 can drive the first conveying assembly to rotate synchronously, and the second transmission plane is misaligned with the second matching plane; when the rotating shaft 500 moves to the second position, the second transmission plane is opposite to the second matching plane (see Figure 4 The transmission matching form of the middle rotating shaft 500 and the power output shaft 410), so that the rotating shaft 500 can drive the second conveying assembly to rotate synchronously, and the first transmission plane is misaligned with the first matching plane.

[0062] An external thread segment is provided on the rotating shaft 500, and an internal thread segment adapted to the external thread segment is provided on one of the mounting housing 100, the first conveying assembly or the second conveying assembly, so as to facilitate the switching of the rotation direction of the motor and control the movement of the rotating shaft 500 between the first position and the second position. It should be noted that when the rotating shaft 500 moves between the first position and the second position, the first conveying assembly and the second conveying assembly (the first drive matching part and the second drive matching part) do not interfere with the spiral lifting and lowering movement of the rotating shaft 500. It is preferred to set the above-mentioned first transmission plane, the first matching plane, the second transmission plane and the second matching plane as a spiral curved surface, which matches the spiral movement of the rotating shaft 500 between the first position and the second position without affecting the transmission effect, so as to facilitate the movement of the rotating shaft 500 between the first position and the second position.

[0063] In order to ensure the free movement of the rotating shaft 500 between the first position and the second position and realize the driving of the rotating shaft 500, the Figure 4 In one embodiment, the power output shaft 410 has a transmission profile, and a third transmission hole is opened on the rotating shaft 500. The third transmission hole is for the power output shaft 410 to be slidably embedded in the axial direction, and has a transmission matching profile opposite to the transmission profile. The transmission profile can be a single plane or multiple planes. When the transmission profile is a single plane, the power output shaft 410 can be Figure 5 In the structure shown, when the transmission profile is a plurality of planes, the power output end of the power output shaft 410 can be set to a multi-prism structure (e.g., a hexagonal prism structure) to achieve transmission. It is understood that the axial extension length of the transmission profile is not less than the axial distance of the rotating shaft 500 moving between the first position and the second position, and the end of the transmission profile extends to the end of the power output end of the power output shaft 410 to avoid affecting the assembly between the rotating shaft 500 and the power output shaft 410.

[0064] The transmission connection between the transmission shaft and the power output shaft 410 can also be achieved by setting a spline. It only needs to ensure that the spline has a certain degree of freedom of axial movement so as not to affect the axial sliding of the rotating shaft 500.

[0065] The peristaltic pump has a variety of placement modes when in use, combined with Figure 1-Figure 4 In this embodiment, under normal use, the first conveying component is arranged above the second conveying component, the rotating shaft 500 is placed in the vertical direction, and can move up and down to achieve switching between the first position and the second position. In order to overcome the gravity of the rotating shaft 500 during the upward movement and facilitate the rotating shaft 500 to move smoothly from the second position to the first position, the peristaltic pump also includes a support spring 101, which can provide a vertical upward force to the rotating shaft 500.

[0066] Specifically, combined Figure 6 and Figure 7 When the driving member 400 is arranged at the bottom of the mounting shell 100, and the first conveying assembly and the second conveying assembly are arranged inside the mounting shell 100, the support spring 101 can be sleeved on the power output shaft 410, and the two ends are respectively abutted and connected with the body of the driving member 400 and the end of the rotating shaft 500.

[0067] In one embodiment, under normal use, the first conveying assembly and the second conveying assembly are located at the same height, and the rotating shaft 500 is placed in the horizontal direction and can move left and right to achieve its switching between the first position and the second position. In this embodiment, the above-mentioned support spring 101 is not required.

[0068] In a specific embodiment disclosed in the present utility model, the first conveying assembly includes a first swivel support seat 200 and a first rolling rotor. The first swivel support seat 200 is rotatably disposed on the mounting shell 100 and is provided with a first transmission hole for the rotating shaft 500 to be embedded. The first driving mating portion is disposed in the first transmission hole. The first rolling rotor is a plurality of rotatably disposed on the first swivel support seat 200 and is circumferentially spaced and evenly arranged around the first swivel support seat 200. The first rolling rotor is used to roll the first pipeline 600.

[0069] The structure of the second conveying assembly is similar to that of the first conveying assembly, and includes a second slewing bearing seat 300 and a second rolling rotor. The second slewing bearing seat 300 is rotatably disposed on the mounting housing 100, and is provided with a second transmission hole for the rotation shaft 500 to be embedded. The second driving mating portion is disposed in the second transmission hole, and the power output shaft 410 is in transmission connection with the rotation shaft 500 in the second transmission hole. The second rolling rotor is rotatably disposed on the second slewing bearing seat 300 in a plurality, and is spaced and evenly arranged around the circumference of the second slewing bearing seat 300. The second rolling rotor is used to roll the second pipeline 610.

[0070] Among them, the first rolling rotor and the second rolling rotor can both be structures such as rolling shafts, rolling columns 210, and the specific shapes and size parameters of the first rolling rotor and the second rolling rotor can be selected by technical personnel in this field according to actual conditions, and will not be repeated here.

[0071] Since the rotating shaft 500 drives the first swivel support seat 200 to rotate synchronously at a certain angle when it moves from the first position to the second position, when the rotating shaft 500 just breaks away from the transmission connection with the first swivel support seat 200, the first swivel support seat 200 will continue to rotate at a certain angle under the action of inertia, thereby causing liquid to flow out of the first pipeline 600. Therefore, in order to avoid the free rotation of the first swivel support seat 200 in the above situation, the peristaltic pump also includes a first stopper 112.

[0072] Specifically, combined Figure 4 A first supporting platen 111 and a first stopper 112 are provided on the mounting shell 100. The first swivel supporting seat 200 is provided on the mounting shell 100. The first stopper 112 is used to press the first swivel supporting seat 200 against the first supporting platen 111 to achieve stopping.

[0073] Among them, the first stopper 112 can specifically be a glass ball screw (or a ball head screw, a steel ball screw), which applies a small force to the first swivel support seat 200, which can prevent the first swivel support seat 200 from rotating freely, and will not affect the rotation axis 500 to drive the first swivel support seat 200 to rotate.

[0074] Similarly, in order to prevent the second slewing bearing seat 300 from rotating freely, a second support plate 121 and a second stopper 122 are provided on the mounting housing 100. The second slewing bearing seat 300 is provided on the mounting housing 100. The second stopper 122 is used to press the second slewing bearing seat 300 against the second support plate 121 to achieve stopping. The second stopper 122 can also be a glass ball screw.

[0075] Combination Figure 6 and Figure 7 The first support plate 111 and the second support plate 121 are both annular in shape, one end of which is connected to the mounting housing 100, and the inner circle of the other end is folded to form a retaining edge, and the retaining edges of the first support plate 111 and the second support plate 121 respectively limit the edge positions of the first slewing bearing seat 200 and the second slewing bearing seat 300 in the circumferential direction. At the same time, due to the limitation of the first support plate 111 and the second support plate 121, there is a gap between the first conveying assembly and the second conveying assembly, so that the rotation of the two does not affect each other.

[0076] In order to ensure uniform force on the first swivel bearing seat 200 and the second swivel bearing seat 300, a plurality of first stoppers 112 and a plurality of second stoppers 122 are preferably provided along the circumference of the first swivel bearing seat 200 and the second swivel bearing seat 300, for example, two stoppers may be provided.

[0077] It is understandable that in order to reduce the friction between the first swivel support seat 200 and the first support plate 111 during the rotation process, the two can be connected via a bearing member. The corresponding second swivel support seat 300 and the second support plate 121 can also be connected via a bearing member.

[0078] In one embodiment, the rotation axis 500 is as follows Figure 7 In the three-section structure shown, the first section of the rotating shaft 500 is provided with the above-mentioned first rotating drive part, and the second section is provided with the second rotating drive part. The outer diameter of the middle section arranged between the first section and the second section is larger than the outer diameters of the first section and the second section, so that a step surface structure is formed at the first section and the middle section. The step surface structure is used to abut and limit with the first slewing bearing seat 200 to realize the positioning of the rotating shaft 500 at the first position. At the same time, a plurality of groove structures are opened at the middle section corresponding to the step surface to adapt to the current casting process and reduce the deformation of the rotating shaft 500 during the production process.

[0079] Combination Figure 4 Since the peristaltic pump is provided with only one driving member 400 and adopts Figure 4 In the structural layout shown, the first output assembly is arranged at one end away from the driving member 400, and the second output assembly is arranged at one end close to the driving member 400. In order to ensure the rotation of the first conveying assembly on the mounting shell 100, a positioning shaft for rotatably mounting the first swivel support seat 200 is provided on the mounting shell 100. In order to reduce friction, the first swivel support seat 200 is rotatably connected to the positioning shaft through a bearing 113.

[0080] For easy installation, the installation housing 100 includes a cover plate 110 and a housing 120. Figure 5 The cover plate 110 and the shell 120 are detachably connected to form an installation cavity, the first conveying assembly and the second conveying assembly are both arranged in the installation cavity, the driving member 400 is arranged outside the installation cavity, and the first conveying assembly is rotatably arranged on the cover plate 110, and the second conveying assembly is rotatably arranged on the bottom wall of the shell 120 opposite to the cover plate 110, and the first pipeline 600 and the second pipeline 610 pass through between the first conveying assembly and the shell 120 and between the second conveying assembly and the shell 120 respectively, so as to be pulse-extruded for conveying operations.

[0081] Combination Figure 5 In one embodiment, three rolling columns 210 are rotatably provided on the first swivel support seat 200 and the second swivel support seat 300. The rolling columns 210 have large diameters at both ends and a small diameter in the middle to extrude the first pipeline 600 and the second pipeline 610 made of silicone. The first supporting plate 111 is fixed to the cover plate 110 by screws, and the second supporting plate 121 is fixed to the housing 120 by screws.

[0082] In a specific implementation process, when the motor (driving member 400) rotates clockwise, the rotating shaft 500 reversely withdraws from the second rotating support seat 300, and at the same time, the glass ball screw (second stopper 122) presses the second rotating support seat 300 against the second supporting plate 121 to prevent the second rotating support seat 300 from rotating freely. The rotating shaft 500 then moves upward through the supporting force of the supporting spring 101 and is screwed into the first rotating support seat 200, thereby being connected with the first rotating support seat 200 to rotate. When the first rotating support seat 200 rotates, it drives the rolling column 210 on the first rotating support seat 200 to rotate, and the rolling column 210 and the housing 120 intermittently squeeze the first pipeline 600 together, so that the liquid in the first pipeline 600 flows.

[0083] When the motor rotates counterclockwise, the rotating shaft 500 is screwed into the second swivel support seat 300 in the opposite direction through the thread, thereby connecting with the second swivel support seat 300 to rotate the second swivel support seat 300. When the second swivel support seat 300 rotates, the rolling column 210 on the second swivel support seat 300 is driven to rotate. The rolling column 210 and the housing 120 intermittently squeeze the second pipeline 610 together, so that the liquid in the second pipeline 610 flows.

[0084] The beverage machine disclosed in the embodiment of the utility model includes the above-mentioned peristaltic pump. Since it has the above-mentioned peristaltic pump, it also has the above-mentioned beneficial effects. Other structures refer to the prior art and are not described here in detail.

[0085] The above description of the disclosed embodiments enables professionals and technicians in the field to implement or use the utility model. Various modifications to these embodiments will be obvious to professionals and technicians in the field, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. The specific technical means in some embodiments can be combined in part or in whole into another embodiment without being explicitly excluded by another embodiment. Therefore, the utility model will not be limited to the embodiments shown in this article, but will conform to the widest range consistent with the principles and novel features disclosed herein.

Claims

1. A peristaltic pump, characterized in that: It comprises a first conveying assembly, a second conveying assembly, a driving member (400) and a rotating shaft (500); The driving member (400) has a power output shaft (410); The rotating shaft (500) is drivingly connected to the power output shaft (410), so that the power output shaft (410) drives the rotating shaft (500) to rotate; The rotating shaft (500) can be respectively connected to the first conveying assembly and the second conveying assembly at both ends along its axial direction, and can be located at a first position and a second position under the drive of the power output shaft (410), wherein the first position refers to a position where the rotating shaft (500) is connected to the first conveying assembly and is disconnected from the second conveying assembly, and the second position refers to a position where the rotating shaft (500) is connected to the second conveying assembly and is disconnected from the first conveying assembly; The first conveying assembly is used to be driven by the driving member (400) to discharge liquid from the first pipeline (600) when the rotating shaft (500) is located at the first position; The second conveying assembly is used to be driven by the driving member (400) to discharge liquid from the second pipeline (610) when the rotating shaft (500) is located at the second position.

2. The peristaltic pump according to claim 1, characterized in that The first conveying assembly is provided with a first driving matching portion, the second conveying assembly is provided with a second driving matching portion, and both ends of the rotating shaft (500) are provided with a first rotating driving portion and a second rotating driving portion respectively; When the rotating shaft (500) is located at a first position, the first rotating driving part is in transmission connection with the first driving matching part, and the second rotating driving part and the second driving matching part are released from transmission connection; when the rotating shaft (500) is located at a second position, the first rotating driving part and the first driving matching part are released from transmission connection, and the second rotating driving part and the second driving matching part are transmission connected.

3. The peristaltic pump according to claim 2, characterized in that The first rotation driving portion is a first external thread segment, and the first driving matching portion is a first internal thread segment threadably matched with the first external thread segment; The second rotation driving portion is a second external thread segment, the second driving matching portion is a second internal thread segment threadably matched with the second external thread segment, and the first external thread segment and the second external thread segment have opposite rotation directions; When the power output shaft (410) rotates in a first direction, the rotating shaft (500) moves from the second position to the first position; when the power output shaft (410) rotates in a second direction opposite to the first direction, the rotating shaft (500) moves from the first position to the second position.

4. The peristaltic pump according to claim 2, characterized in that The first conveying assembly, the second conveying assembly, the driving member (400) and the rotating shaft (500) are all arranged on a mounting housing (100), and the first conveying assembly comprises: A first slewing bearing seat (200) is rotatably disposed on the mounting housing (100) and is provided with a first transmission hole into which the rotating shaft (500) can be inserted, and the first driving matching portion is disposed in the first transmission hole; The first rolling rotors are a plurality of first rolling rotors rotatably disposed on the first slewing bearing seat (200) and arranged at intervals in the circumferential direction around the first slewing bearing seat (200), and the first rolling rotors are used to roll the first pipeline (600).

5. The peristaltic pump according to claim 4, characterized in that The second conveying assembly comprises: A second slewing bearing seat (300) is rotatably disposed on the mounting housing (100) and is provided with a second transmission hole for the rotating shaft (500) to be inserted into, the second driving matching portion is disposed in the second transmission hole, and the power output shaft (410) is transmission-connected to the rotating shaft (500) in the second transmission hole; The second rolling rotors are a plurality of rotors rotatably disposed on the second slewing bearing seat (300) and arranged at intervals in the circumferential direction around the second slewing bearing seat (300), and the second rolling rotors are used to roll the second pipeline (610).

6. The peristaltic pump according to claim 5, characterized in that A first supporting pressure plate (111) and a first stopper (112) are provided on the installation shell (100); the first slewing support seat (200) is provided on the installation shell (100); the first stopper (112) is used to press the first slewing support seat (200) onto the first supporting pressure plate (111); and / or, A second supporting pressure plate (121) and a second stopper (122) are provided on the installation shell (100); the second slewing support seat (300) is provided on the installation shell (100); and the second stopper (122) is used to press the second slewing support seat (300) onto the second supporting pressure plate (121).

7. The peristaltic pump according to claim 6, characterized in that The first stopper (112) and / or the second stopper (122) are glass ball top screws; and / or, The first stopper (112) and / or the second stopper (122) are one or more.

8. The peristaltic pump according to claim 4, characterized in that A positioning shaft is provided on the installation housing (100), and the first slewing bearing seat (200) is rotatably provided on the positioning shaft via a bearing (113).

9. The peristaltic pump according to any one of claims 1 to 8, characterized in that: The power output shaft (410) has a transmission profile, and the rotating shaft (500) is provided with a third transmission hole, in which the power output shaft (410) is axially slidably embedded, and has a transmission matching profile opposite to the transmission profile.

10. The peristaltic pump according to any one of claims 1 to 8, characterized in that: It also includes a supporting spring (101) for supporting the rotating shaft (500).

11. A beverage machine, characterized in that: Comprising a peristaltic pump as described in any one of claims 1-10.

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