A multi-functional peristaltic pump

Abstract

The application relates to a multifunctional peristaltic pump which comprises a pump body, a rolling assembly for controlling the flow of a liquid delivery pipe, a transmission assembly for rotating the rolling assembly, a liquid delivery pipe for liquid delivery and a driving member, the top of the pump body is provided with a joint assembly for multi-directional connection of the pipe and a mounting assembly for clamping the joint assembly; the joint assembly comprises a clamping joint for matched connection with the mounting assembly, a square positioning block for directional positioning of the joint assembly and a pipe joint for external pipe connection, the top end of the clamping joint is connected with the square positioning block, and the top end of the square positioning block is connected with the pipe joint. The joint assembly of the application can realize multi-directional orientation conversion through the matched structure of the square positioning block and the clamping groove. Since the shape of the square positioning block is matched with the clamping groove, the clamping direction can be flexibly adjusted (such as angle switching at 0 DEG, 90 DEG, 180 DEG, 270 DEG and the like), so that the pipe joint changes the orientation.

Description

Technical Field

[0001] This application relates to the field of fluid transport equipment technology, and in particular to a multifunctional peristaltic pump. Background Technology

[0002] Currently, peristaltic pumps are widely used in medical, chemical, and food processing fields as a common fluid transport device. They transport liquids by periodically squeezing a hose and have advantages such as being pollution-free and easy to clean. With the development of industrial automation, higher requirements have been placed on the precision, stability, and multifunctionality of peristaltic pumps.

[0003] In the existing technology, peristaltic pumps usually use fixed rollers to squeeze the hose to achieve liquid delivery. Some high-end products improve delivery accuracy by increasing the number of rollers or adjusting the roller spacing. At the same time, the connector on the peristaltic pump that connects to the hose is usually fixedly connected to the pump body, requiring the pump body to be disassembled for connection and replacement or the use of a different peristaltic pump.

[0004] Regarding the aforementioned technologies, the existing peristaltic pumps have fixed pipe connections, which cannot meet the needs of multi-directional connections. Their overall structure is also relatively complex to disassemble and has high maintenance costs, making it difficult to meet the needs of users. Summary of the Invention

[0005] To address the issues of existing peristaltic pumps having a single pipeline connection method, failing to meet multi-directional connection requirements, having a complex overall structure, and high maintenance costs, this application provides a multi-functional peristaltic pump.

[0006] This application provides a multifunctional peristaltic pump, which adopts the following technical solution:

[0007] A multi-functional peristaltic pump includes a pump body, a rolling assembly for controlling the flow of infusion, a transmission assembly for rotating the rolling assembly, an infusion tube for liquid delivery, and a drive component. The top of the pump body is provided with a connector assembly for multi-directional pipe connection and an installation assembly for snapping the connector assembly.

[0008] The connector assembly includes a snap-fit ​​connector for mating with the mounting assembly, a square positioning block for directional positioning of the connector assembly, and a pipe connector for connecting to an external pipe. The top end of the snap-fit ​​connector is connected to the square positioning block, and the top end of the square positioning block is connected to the pipe connector. The snap-fit ​​connector and the pipe connector are interconnected.

[0009] The installation assembly includes a sealing block for connecting the snap-fit ​​connector. The top of the pump body has a slot for engaging with the snap-fit ​​connector. The shape of the slot is adapted to the square positioning block. The connector assembly can change its orientation in multiple directions by the snap-fit ​​direction of the square positioning block on the slot.

[0010] By adopting the above technical solution, the connector assembly can achieve multi-directional orientation changes through the cooperation structure of "square positioning block + slot". Since the shape of the square positioning block is adapted to the slot, its snapping direction can be flexibly adjusted (such as switching angles such as 0°, 90°, 180°, 270°, etc.), thereby driving the pipe connector to change orientation. At the same time, the shape of the slot is adapted to the square positioning block, and the square structure has a clear corner limiting function, which can limit the rotational freedom of the connector assembly after installation. Combined with the snapping structure of the snapping connector and the sealing snapping block, a dual fixation of "radial clamping + circumferential limiting" is formed, which greatly improves the stability of the connection.

[0011] Preferably, the rolling assembly includes a timing disc, a rotor, and a rotating shaft. The rotating shaft is rotatably connected to the timing disc, the rotor is sleeved on the rotating shaft, and the end of the rotating shaft near the transmission assembly is connected to the transmission assembly.

[0012] By adopting the above technical solution, the rotating shafts of all rotors are installed on the same synchronous disc, which ensures that all rotors maintain strict synchronous rotation during operation. Synchronous rotation enables multiple rotors to squeeze the infusion tubing completely consistently and continuously, avoiding flow pulsation or excessive local wear of the tubing caused by asynchrony.

[0013] Preferably, a positioning ring is provided between the rolling assembly and the transmission assembly, and the positioning ring is sleeved on the end of the rolling assembly near the transmission assembly.

[0014] By adopting the above technical solution, the positioning ring, as a rigid sleeve structure, forcibly constrains the coaxiality of the output shaft of the rolling assembly and the transmission assembly, ensuring that the two shafts are strictly concentric. At the same time, the length of the positioning ring precisely controls the axial clearance between the rolling assembly and the transmission assembly, preventing axial movement caused by vibration or load changes during operation, and avoiding abnormal wear or noise caused by misalignment.

[0015] Preferably, the transmission assembly includes a base, a first gear, and a plurality of second gears. The base has a toothed groove. The surface of the first gear meshes with the surface of the second gear. The side of the second gear away from the first gear meshes with the base. The second gear is located in the toothed groove on the base.

[0016] By adopting the above technical solution, the first gear and multiple second gears form a multi-tooth meshing, which has more contact points than single gear transmission, effectively dispersing instantaneous impact force and reducing vibration and noise during transmission. The second gear meshes with the base tooth groove, which is equivalent to providing a fixed support point for the entire transmission system, preventing gears from deviating or shaking during rotation, and further ensuring the smoothness of transmission.

[0017] Preferably, the number of the second gears is three, and the number of rotors corresponds to the number of the second gears, with the three rotors forming an equilateral triangle.

[0018] By adopting the above technical solution, when the three second gears cooperate with the corresponding rotors, power can be evenly transmitted to the rotors through the three gears. The equilateral triangular layout formed by the three rotors makes the overall structure's center of gravity more stable. The centrifugal force generated during high-speed rotation can cancel each other out, reducing vibration and noise during equipment operation. At the same time, when the three rotors are distributed in an equilateral triangle, the included angle between adjacent rotors is 120°, which can form a more uniform and continuous squeezing effect on the infusion tube during rotation. Compared with single-rotor or dual-rotor designs, the three rotors can alternately complete the "squeeze-release" cycle of the pipeline, reducing flow pulsation during liquid delivery.

[0019] Preferably, the sealing block is located within the slot, and the sealing block is made of an elastic material.

[0020] By adopting the above technical solution, the sealing block is made of elastic material. When the connector and the slot are engaged, it will undergo elastic deformation due to compression, tightly filling the gap between the connector and the slot to form a reliable sealing interface. This effectively prevents fluid leakage from the connection point. The sealing block is located in the slot and achieves sealing synchronously with the snapping action of the connector. No additional sealing components are required, which reduces the risk of sealing failure due to missing parts or improper assembly and improves the overall sealing reliability.

[0021] Preferably, the ends of the clamp connector and the pipe connector away from the square positioning block are both designed as conical columns, and the end of the clamp connector away from the square positioning block is inserted into the infusion tube.

[0022] By adopting the above technical solution, the diameter of the conical structure gradually increases from the end to the root. When the infusion tube is inserted, it will form a tight fit with the inner wall of the infusion tube by "guiding insertion at the small end and squeezing the tube wall at the large end". The infusion tube will undergo elastic deformation under the radial compression of the outer wall of the conical column, forming a continuous clamping force on the conical column. As the insertion depth increases, the clamping force gradually increases, forming a self-locking effect similar to a "wedge", which can effectively prevent the clamping connector from accidentally detaching from the infusion tube.

[0023] Preferably, the drive component is fixedly connected to the pump body by bolts, and the output end of the drive component passes through the outer shell of the pump body and is connected and fixed to the first gear by a flat key.

[0024] By adopting the above technical solution, the bolt connection is a rigid and detachable connection. The pre-tightening force tightly fits the drive component and the pump body, which can withstand the axial and radial forces generated when the drive component is working, avoid relative displacement between the drive component and the pump body due to vibration and impact, and ensure the stability of the overall structure.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. The connector assembly, through the combination structure of "square positioning block + slot", can achieve multi-directional orientation change. Since the shape of the square positioning block is adapted to the slot, its snapping direction can be flexibly adjusted (such as switching angles such as 0°, 90°, 180°, 270°, etc.), thereby driving the pipe connector to change orientation. At the same time, the shape of the slot is adapted to the square positioning block, and the square structure has a clear corner limiting function, which can limit the rotational freedom of the connector assembly after installation. Combined with the snapping structure of the snapping connector and the sealing snapping block, a dual fixation of "radial clamping + circumferential limiting" is formed, which greatly improves the stability of the connection.

[0027] 2. As a rigid sleeve structure, the positioning ring forcibly constrains the coaxiality of the output shaft of the rolling assembly and the transmission assembly, ensuring that the two shafts are strictly concentric. At the same time, the length of the positioning ring precisely controls the axial clearance between the rolling assembly and the transmission assembly, preventing axial movement caused by vibration or load changes during operation, and avoiding abnormal wear or noise caused by misalignment.

[0028] 3. The diameter of the conical structure gradually increases from the end to the root. When the infusion tube is inserted, it will form a tight fit with the inner wall of the infusion tube by "guiding insertion at the small end and squeezing the tube wall at the large end". The infusion tube will undergo elastic deformation under the radial compression of the outer wall of the conical column, which will form a continuous clamping force on the conical column. As the insertion depth increases, the clamping force will gradually increase, forming a self-locking effect similar to a "wedge", which can effectively prevent the clamp from accidentally detaching from the infusion tube. Attached Figure Description

[0029] Figure 1 This is a front-view perspective view of a multi-functional peristaltic pump;

[0030] Figure 2 This is an exploded view of the structure of a multifunctional peristaltic pump;

[0031] Figure 3 It is a three-dimensional sectional view of the mating structure of the connector assembly and the mounting assembly;

[0032] Figure 4 This is a rear sectional view of a multi-functional peristaltic pump;

[0033] Figure 5 It is a three-dimensional structural diagram of the cooperation between the rolling assembly and the transmission assembly;

[0034] Figure 6 yes Figure 5 Right sectional view;

[0035] Figure 7 This is a front sectional view of a multi-functional peristaltic pump.

[0036] Reference numerals: 100, pump body; 200, infusion pipe; 300, rolling assembly; 310, synchronous disc; 320, rotor; 330, rotating shaft; 400, transmission assembly; 410, base; 420, first gear; 430, second gear; 440, tooth groove; 500, driving component; 600, connector assembly; 610, snap-fit ​​connector; 620, square positioning block; 630, pipe connector; 700, mounting assembly; 710, sealing snap-fit ​​block; 720, slot; 800, positioning ring. Detailed Implementation

[0037] The following is in conjunction with the appendix Figure 1 -Appendix Figure 7 This application will be described in further detail.

[0038] This application discloses a multifunctional peristaltic pump.

[0039] Reference Figure 1 , Figure 2 and Figure 3 A multifunctional peristaltic pump includes a pump body 100, an infusion tube 200, a rolling assembly 300 for controlling the flow of the infusion tube 200, a transmission assembly 400 for rotating the rolling assembly 300, a connector assembly 600 for multi-directional connection of the pipeline, and an installation assembly 700 for snapping the connector assembly 600. The infusion tube 200 is sleeved on the surface of the rolling assembly 300. The side of the rolling assembly 300 closest to the transmission assembly 400 is fixedly connected to the transmission assembly 400. A driving member 500 for driving the transmission assembly 400 to rotate is provided on one side of the pump body 100. The side of the transmission assembly 400 away from the rolling assembly 300 is connected to the driving member 500. The connector assembly 600 is located on the top of the pump body 100. The installation assembly 700 is located on the top of the pump body 100 and is used for snapping the connector assembly 600 to the ground.

[0040] The connector assembly 600 includes a snap-fit ​​connector 610 for mating with the mounting assembly 700, a square positioning block 620 for directional positioning of the connector assembly 600, and a pipe connector 630 for connecting to an external pipe. The top end of the snap-fit ​​connector 610 is fixedly connected to the square positioning block 620, and the top end of the square positioning block 620 is fixedly connected to the pipe connector 630. The snap-fit ​​connector 610 and the pipe connector 630 are interconnected.

[0041] The installation component 700 includes a sealing block 710 for connecting the connector 610. The top of the pump body 100 is provided with a slot 720 for cooperating with the connector 610. The shape of the slot 720 is adapted to the square positioning block 620. The connector component 600 can change its orientation in multiple directions by the snapping direction of the square positioning block 620 on the slot 720.

[0042] Through the above scheme, the connector assembly 600 can achieve multi-directional orientation changes through the cooperation structure of "square positioning block 620 + slot 720". Since the shape of the square positioning block 620 is adapted to the slot 720, its snapping direction can be flexibly adjusted (such as 0°, 90°, 180°, 270°, etc.) and the angle can be switched, thereby driving the pipe connector 630 to change its orientation. At the same time, the shape of the slot 720 is adapted to the square positioning block 620. The square structure has a clear corner limiting function, which can limit the rotational freedom of the connector assembly 600 after installation. Combined with the snapping structure of the snapping connector 610 and the sealing snapping block 710, a dual fixation of "radial snapping + circumferential limiting" is formed, which greatly improves the stability of the connection.

[0043] The sealing block 710 is located within the slot 720 and is made of an elastic material. Because the sealing block 710 is made of an elastic material, when the connector 610 engages with the slot 720, it undergoes elastic deformation due to compression, tightly filling the gap between the connector 610 and the slot 720 to form a reliable sealing interface. This effectively prevents fluid leakage from the connection point. The sealing block 710, located within the slot 720, achieves sealing synchronously with the snap-fit ​​action of the connector 610, eliminating the need for additional sealing components. This reduces the risk of seal failure due to missing parts or improper assembly, and improves overall sealing reliability.

[0044] Both the clamp connector 610 and the pipe connector 630 have a conical shape at the ends away from the square positioning block 620. The end of the clamp connector 610 away from the square positioning block 620 is inserted into the infusion tube 200. The diameter of the conical structure gradually increases from the end to the root. When inserted into the infusion tube 200, it will form a tight fit with the inner wall of the infusion tube 200 by "guiding insertion at the small end and squeezing the tube wall at the large end". The infusion tube 200 undergoes elastic deformation under the radial compression of the outer wall of the conical column, which forms a continuous clamping force on the conical column. As the insertion depth increases, the clamping force gradually increases, forming a self-locking effect similar to a "wedge", which can effectively prevent the clamp connector 610 from accidentally detaching from the infusion tube 200.

[0045] refer to Figure 4 and Figure 5 A positioning ring 800 is provided between the rolling assembly 300 and the transmission assembly 400. The positioning ring 800 is sleeved on the end of the rolling assembly 300 near the transmission assembly 400. Since the positioning ring 800 is a rigid sleeve structure, it forcibly constrains the coaxiality of the output shaft of the rolling assembly 300 and the transmission assembly 400, ensuring that the two shafts are strictly concentric. At the same time, the length of the positioning ring 800 precisely controls the axial clearance between the rolling assembly 300 and the transmission assembly 400, preventing axial movement caused by vibration or load changes during operation, and avoiding abnormal wear or noise caused by misalignment.

[0046] The drive unit 500 is fixedly connected to the pump body 100 by bolts. The output end of the drive unit 500 passes through the outer shell of the pump body 100 and is connected and fixed to the first gear 420 by a flat key.

[0047] Through the above scheme, the bolt connection is a rigid and detachable connection. The pre-tightening force tightly fits the drive component 500 and the pump body 100 together, which can withstand the axial and radial forces generated when the drive component 500 is working, avoid relative displacement between the drive component 500 and the pump body 100 due to vibration and impact, and ensure the stability of the overall structure.

[0048] refer to Figure 4 and Figure 5 The rolling assembly 300 includes a synchronizing disc 310, a rotor 320, and a rotating shaft 330. The synchronizing disc 310 is sleeved and connected to the rotating shaft 330. The end of the rotating shaft 330 near the transmission assembly 400 is fixedly connected to the transmission assembly 400. The rotor 320 is sleeved on the surface of the rotating shaft 330 and is located between the synchronizing discs 310. Since the rotating shafts 330 of all rotors 320 are mounted on the same synchronizing disc 310, this ensures that all rotors 320 maintain strict synchronous rotation during operation. Synchronous rotation allows multiple rotors 320 to squeeze the infusion tubing completely consistently and continuously, avoiding flow pulsation or localized excessive wear of the tubing caused by asynchrony.

[0049] refer to Figure 6 and Figure 7 The transmission assembly 400 includes a base 410, a first gear 420, and three second gears 430. The base 410 has a toothed groove 440. The first gear 420 is fixedly connected to the output end of the drive component 500. The surface of the first gear 420 meshes with the surfaces of the three second gears 430. The second gears 430 are fixedly connected to the rotating shaft 330. The side of the second gear 430 away from the first gear 420 meshes with the base 410. The second gear 430 is located within the toothed groove 440 on the base 410. The base 410 is fixedly connected to the pump body 100. The multi-tooth meshing between the first gear 420 and the three second gears 430 provides more contact points compared to single-gear transmission, effectively dispersing instantaneous impact forces and reducing vibration and noise during transmission. The meshing of the second gear 430 with the toothed groove 440 of the base 410 provides a fixed support point for the entire transmission system, preventing gear misalignment or wobbling during rotation and further ensuring the smoothness of the transmission.

[0050] refer to Figure 6 and Figure 7There are three second gears 430, and the number of rotors 320 corresponds to the number of second gears 430, forming an equilateral triangle. When the three second gears 430 cooperate with the corresponding rotors 320, power can be evenly transmitted to the rotors 320 through the three gears. The equilateral triangle layout of the three rotors 320 makes the center of gravity of the overall structure more stable, and the centrifugal force generated during high-speed rotation can cancel each other out, reducing vibration and noise during equipment operation. At the same time, when the three rotors 320 are distributed in an equilateral triangle, the included angle between adjacent rotors 320 is 120°, which can form a more uniform and continuous squeezing effect on the infusion tube 200 during rotation. Compared with the single rotor 320 or dual rotor 320 design, the three rotors 320 can alternately complete the "squeeze-release" cycle of the pipeline, reducing flow pulsation during liquid transportation.

[0051] The implementation principle of this application embodiment is as follows: When installing the connector, the orientation of the pipe connector 630 on the connector assembly 600 can be adjusted as needed, so that the square positioning block 620 is locked in the slot 720 of the pump body 100, and the locking connector 610 is inserted into the infusion tube 200 through the sealing block 710 for connection and fixation. After fixation, the driving component 500 is started, and the driving component 500 drives the first gear 420 to rotate. The first gear 420 drives the second gear 430 to rotate and move in the tooth groove 440 on the base 410. The second gear 430 drives the rotating shaft 330 to rotate, and the rotating shaft 330 drives the rotor 320 to rotate and the synchronous disk 310 to rotate, so that the rotor 320 continuously squeezes the infusion tube 200, controls the output liquid flow rate, and makes the squeezing of the infusion tube 200 by the roller assembly more stable and uniform, ensuring stable flow.

[0052] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A multifunctional peristaltic pump, comprising a pump body (100), a liquid delivery tube (200) for liquid delivery, a rolling assembly (300) for controlling the flow of the liquid delivery tube (200), a transmission assembly (400) for rotating the rolling assembly (300), and a drive component (500), characterized in that, The top of the pump body (100) is provided with a connector assembly (600) for multi-directional pipe connection and an installation assembly (700) for snapping the connector assembly (600). The connector assembly (600) includes a snap-fit ​​connector (610) for mating with the mounting assembly (700), a square positioning block (620) for directional positioning of the connector assembly (600), and a pipe connector (630) for connecting to an external pipe. The top end of the snap-fit ​​connector (610) is connected to the square positioning block (620), and the top end of the square positioning block (620) is connected to the pipe connector (630). The snap-fit ​​connector (610) and the pipe connector (630) are interconnected. The mounting assembly (700) includes a sealing block (710) for connecting the snap-fit ​​connector (610). The top of the pump body (100) is provided with a slot (720) for cooperating with the snap-fit ​​connector (610). The shape of the slot (720) is adapted to the square positioning block (620). The connector assembly (600) can change its orientation in multiple directions by the snap-fit ​​direction of the square positioning block (620) on the slot (720).

2. The multifunctional peristaltic pump according to claim 1, characterized in that, The rolling assembly (300) includes a timing disc (310), a rotor (320) and a rotating shaft (330). The rotating shaft (330) is rotatably connected to the timing disc (310), and the rotor (320) is sleeved on the rotating shaft (330). The end of the rotating shaft (330) near the transmission assembly (400) is connected to the transmission assembly (400).

3. The multifunctional peristaltic pump according to claim 1, characterized in that, A positioning ring (800) is provided between the rolling assembly (300) and the transmission assembly (400), and the positioning ring (800) is sleeved on the end of the rolling assembly (300) near the transmission assembly (400).

4. The multifunctional peristaltic pump according to claim 2, characterized in that, The transmission assembly (400) includes a base (410), a first gear (420) and a plurality of second gears (430). The base (410) has a toothed groove (440). The surface of the first gear (420) meshes with the surface of the second gear (430). The side of the second gear (430) away from the first gear (420) meshes with the base (410). The second gear (430) is located in the toothed groove (440) on the base (410).

5. The multifunctional peristaltic pump according to claim 4, characterized in that, The number of the second gear (430) is three, and the number of the rotors (320) corresponds to the number of the second gear (430), with the three rotors (320) forming an equilateral triangle.

6. The multifunctional peristaltic pump according to claim 1, characterized in that, The sealing block (710) is located in the slot (720), and the sealing block (710) is made of elastic material.

7. The multifunctional peristaltic pump according to claim 1, characterized in that, The end of the clamp connector (610) and the pipe connector (630) away from the square positioning block (620) is designed as a conical shape, and the end of the clamp connector (610) away from the square positioning block (620) is inserted into the infusion tube (200).

8. The multifunctional peristaltic pump according to claim 1, characterized in that, The drive unit (500) is fixedly connected to the pump body (100) by bolts. The output end of the drive unit (500) passes through the outer shell of the pump body (100) and is connected and fixed to the first gear (420) by a flat key.

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