Coaxial asynchronous multi-channel high-precision dispensing system

Abstract

The present application relates to peristaltic pump technical field, especially to a coaxial asynchronous multi-channel high-precision split system, including pump head assembly, drive mechanism and transmission assembly, first motor and first pump head transmission connection, second motor and second pump head transmission connection, transmission assembly includes inner transmission rod and outer transmission pipe, inner transmission rod is arranged in outer transmission pipe, and inner transmission rod is concentric with outer transmission pipe, first motor is drivenly connected with lower part of inner transmission rod through gear set, second motor is drivenly connected with lower part of outer transmission pipe through gear set, inner transmission rod and outer transmission pipe are arranged in pump body support pipe.The first motor of the present application controls the first pump head through the inner transmission rod, the second motor controls the second pump head through the outer transmission pipe, both pump heads can be independently controlled and adjusted, double-channel synchronous liquid charging is carried out, consistency is higher, meanwhile, the first motor and the second motor are driven by gear set, transmission precision is higher, and the setting of pump body support pipe can also effectively save space.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of peristaltic pump, in particular to a coaxial asynchronous multi-channel high-precision split system. BACKGROUND

[0002] The peristaltic pump is generally used as a split system to realize liquid delivery in the medicine dispensing process of the dispensing equipment, and the split system is arranged in multiple groups on the dispensing equipment to deliver the corresponding medicine to the corresponding container according to the initial dose. However, the split system on the existing pharmaceutical equipment generally only realizes single-pump-body single-channel delivery, the delivery efficiency is low, the space between holes is large, the existing demand cannot be met, and the pharmaceutical machine requires cleaning of the table surface and the external split mechanism after each use. However, all these need to be manually performed. In order to ensure that the hand can be inserted, a space of 7-8 cm needs to be left between adjacent split systems. Therefore, the split system on the existing pharmaceutical equipment can only place a limited number of split peristaltic pumps in the limited space. The present application can place twice as many single-pump-body single-channel peristaltic pumps in the same size space, and can improve the liquid filling efficiency of the pharmaceutical equipment by two times. SUMMARY

[0003] In view of the above problems, the purpose of the present application is to provide a coaxial asynchronous multi-channel high-precision split system with double-channel independent operation and higher precision.

[0004] In order to solve the above technical problems, the technical scheme adopted by the present application is as follows: a coaxial asynchronous multi-channel high-precision split system, comprising a pump head assembly, a driving mechanism and a transmission assembly, the pump head assembly comprising a first pump head and a second pump head, the first pump head being arranged on the upper part of the second pump head,

[0005] The driving mechanism comprises a first motor and a second motor, the first motor being in transmission connection with the first pump head, and the second motor being in transmission connection with the second pump head,

[0006] The transmission assembly comprises an inner transmission rod connecting the first motor and the first pump head, and an outer transmission pipe connecting the second motor and the second pump head, the inner transmission rod being arranged in the outer transmission pipe, and the inner transmission rod being concentric with the outer transmission pipe, the first motor being in transmission connection with the lower part of the inner transmission rod through a gear set, and the second motor being in transmission connection with the lower part of the outer transmission pipe through a gear set, the inner transmission rod and the outer transmission pipe being arranged in the pump body support pipe.

[0007] In the above technical scheme, the first pump head and the second pump head are each provided with a pipeline assembly, the pipeline assembly has a three-way joint, two three-way joints are connected by two mutually parallel connecting hoses, and the two ends of the connecting hoses are fixed on the housings of the first pump head and the second pump head by a pipe clamp device.

[0008] In the technical scheme, the pipe clamp device comprises an upper box body and a lower box body, two fixing holes are arranged on the pipe clamp device, and elastic clamping blocks are arranged in the fixing holes.

[0009] In the technical scheme, two connecting columns are arranged on the bottom of the lower box body, and the lower box body is fixedly connected to the housings of the first pump head and the second pump head through the connecting columns.

[0010] In the technical scheme, anti-escape grooves are arranged on the inner walls of the mounting holes in the middle of the elastic clamping blocks.

[0011] In the technical scheme, bearings are arranged at both ends of the inner transmission rod of the first pump head, bearings are arranged at both ends of the outer transmission pipe of the second pump head, and a bearing is arranged at the lower end of the pump body support pipe of the outer transmission pipe.

[0012] In the technical scheme, the diameter of the second pump head is 1.5-2 times the diameter of the pump body support pipe.

[0013] In the technical scheme, a first roller assembly is arranged in the first pump head, the first roller assembly comprises two layers of first rollers arranged in an upper and lower manner, and the first roller assembly is in transmission connection with the inner transmission rod; a second roller assembly is arranged in the second pump head, the second roller assembly comprises two layers of second rollers arranged in an upper and lower manner, and the second roller assembly is in transmission connection with the outer transmission pipe.

[0014] In the technical scheme, the first motor and the second motor are same type motors, and are symmetrically arranged on the two sides of the pump body support pipe.

[0015] In the technical scheme, the gear set comprises a first output gear, a second output gear, a first transmission gear and a second transmission gear, the first output gear is arranged on the first motor, the first output gear is in meshing connection with the first transmission gear on the inner transmission rod, the second output gear is in meshing connection with the second transmission gear on the outer transmission pipe, the pitch circle diameters of the first output gear and the second output gear are same, and the pitch circle diameters of the first transmission gear and the second transmission gear are same.

[0016] In conclusion, compared with the conventional technical means, the technical scheme of the present application has the following beneficial effects: the first motor controls the first pump head through the inner transmission rod, the second motor controls the second pump head through the outer transmission pipe, both the pump heads can be independently controlled and adjusted, the double channels can be simultaneously and independently filled with liquid, the consistency is higher, and the first motor and the second motor are both driven through the gear set, so that the transmission precision is higher, and the problem of large difference in liquid filling amount between the two channels caused by the difference between the hoses can be solved compared with the existing single motor simultaneously controlling two pump bodies and two channels of the peristaltic pump.

[0017] The pump head and the lower motor are connected by the pump body support pipe, so that the middle section can be very thin, and the space required for cleaning and maintenance can be left without wasting space. In actual installation, the previous 6 units per square meter can be increased to 16 units per square meter, and the double-pump head structure can reach the work amount of 32 units per square meter, which effectively saves space. BRIEF DESCRIPTION OF DRAWINGS

[0018] The foregoing and other objects, features and advantages of the present application will become apparent to those skilled in the art from the following detailed description in conjunction with the accompanying drawings.

[0019] Figure 1 is a schematic diagram of the three-dimensional structure of the present application;

[0020] Figure 2 is a schematic diagram of the front view structure of the present application;

[0021] Figure 3 is a schematic diagram of the three-dimensional structure of the present application after removing part of the shell;

[0022] Figure 4 is a schematic diagram of the cross-sectional view of the present application;

[0023] Figure 5 is a schematic diagram of the side view structure of the present application;

[0024] Figure 6 is a schematic diagram of the A-A cross-sectional view of Figure 5 ;

[0025] Figure 7 is a schematic diagram of the B-B cross-sectional view of Figure 5 ;

[0026] Figure 8 is a schematic diagram of the three-dimensional structure of the pipe assembly in the present application;

[0027] Figure 9 is a schematic diagram of the three-dimensional structure of the pipe clamp device in the present application;

[0028] Figure 10 is a schematic diagram of the cross-sectional view of the pipe clamp device in the present application;

[0029] Figure 11 is a schematic diagram of the three-dimensional structure of the first pump head and the second pump head in the present application after removing part of the shell;

[0030] Figure 12 is a schematic diagram of the three-dimensional structure of the driving mechanism and the transmission assembly in the present application;

[0031] Figure 13 is a schematic diagram of the three-dimensional structure of the present application used on a pharmaceutical machine;

[0032] The following components are labeled: Pump head assembly 100; First pump head 110; First roller assembly 111; First roller 112; Second pump head 120; Second roller assembly 121; Second roller 122; Drive mechanism 200; First motor 210; Second motor 220; Transmission assembly 300; Inner transmission rod 310; Outer transmission pipe 320; Gear set 330; First output gear 331; Second output gear 332; First transmission gear 333; Second transmission gear 334; Pump body support pipe 400; Bearing 410; Pipeline assembly 500; T-joint 510; Connecting hose 520; Pipe clamp device 530; Upper box 531; Lower box 532; Fixing hole 533; Elastic clamping block 534; Pharmaceutical machine 600. Detailed Implementation

[0033] Based on the preferred embodiments of the present invention, and through the following description, those skilled in the art can make various changes and modifications without departing from the technical concept of the present invention. The technical scope of the present invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

[0034] The invention will be further described with reference to the following figures:

[0035] like Figures 1-11 As shown, a coaxial asynchronous multi-channel high-precision dispensing system includes a pump head assembly 100, a drive mechanism 200, and a transmission assembly 300. The pump head assembly 100 includes a first pump head 110 and a second pump head 120, with the first pump head 110 mounted on the upper part of the second pump head 120.

[0036] The drive mechanism 200 includes a first motor 210 and a second motor 220. The first motor 210 is driven by a first pump head 110, and the second motor 220 is driven by a second pump head 120.

[0037] The transmission assembly 300 includes an inner transmission rod 310 connecting a first motor 210 and a first pump head 110, and an outer transmission pipe 320 connecting a second motor 220 and a second pump head 120. The inner transmission rod 310 is disposed inside the outer transmission pipe 320 and is concentric with the outer transmission pipe 320. The first motor 210 is connected to the lower part of the inner transmission rod 310 via a gear set 330, and the second motor 210 is connected to the lower part of the outer transmission pipe 320 via a gear set 330. The inner transmission rod 310 and the outer transmission pipe 320 are disposed in the pump body support pipe 400.

[0038] like Figure 6 , 8, 9, 10, the first pump head 110 and the second pump head 120 are provided with pipeline assembly 500, the pipeline assembly 500 has three-way joint 510, two three-way joint 510 is connected through two parallel connecting hose 520, the both ends of connecting hose 520 are fixed on the shell of the first pump head 110 and the second pump head 120 through pipe clamp device 530, the pipeline assembly 500 in the prior art adopts separate Y type three-way joint, when running, the pipeline will be oval, affect the stability of operation, and the pipeline assembly 500 in the application is provided with three-way joint 510 and pipe clamp device 530 at the both ends of connecting hose 520, when running, it can effectively ensure that the two connecting hose 520 remain parallel, the connecting hose 520 is vertically extruded with the roller, and the connecting hose 520 will not be obliquely worn, and the position will not be offset, so that the most important precision of peristaltic pump is greatly ensured.

[0039] As shown in Figure 9 , 10 , the pipe clamp device 530 includes upper box body 531 and lower box body 532, the pipe clamp device 530 is provided with two fixed holes 533, and the fixed hole 533 is provided with an elastic clamping block 534.

[0040] As shown in Figure 8 , 9 , 10, the bottom of the lower box body 532 is provided with two connecting columns, and the lower box body 532 is fixedly connected on the shell of the first pump head 110 and the second pump head 120 through the connecting columns, the two connecting columns are inserted into the shell of the pump head, so that the pipeline assembly 500 can be conveniently and quickly disassembled.

[0041] As shown in Figure 9 , the inner wall surface of the mounting hole in the middle of the elastic clamping block 534 is provided with an anti-drop groove, which can help to fix the connecting hose 520 and prevent the connecting hose 520 from slipping during operation.

[0042] As shown in Figure 4 , 12 , the both ends of the inner transmission rod 310 located in the first pump head 110 are provided with bearings 410, the both ends of the outer transmission pipe 320 located in the second pump head 120 are provided with bearings 410, and the lower end of the outer transmission pipe 320 located in the pump body support pipe 400 is provided with a bearing 410, due to the demand of installation on the dispensing machine, the length of the inner transmission rod 310 and the outer transmission pipe 320 is large, and the shaking and noise generated during operation are particularly obvious, the application increases the bearings 410 at several key positions, improves the stability during operation, and also reduces the generation of noise.

[0043] As shown in Figure 1 , 2The diameter of the second pump head 120 is 1.5-2 times of the diameter of the pump body support pipe 400, the support pipe in the prior art is a thick pipe, and the diameter is generally set to be consistent with the pump body, but in this way, it is very inconvenient to install on a pharmaceutical machine, and it is also inconvenient to clean, while in the present application, the pump body support pipe 400 adopts a thin pipe to leave installation space, and it is also convenient to clean and maintain later.

[0044] The first pump head 110 is provided with a first roller assembly 111, the first roller assembly 111 is provided with two layers of first rollers 112, and the first roller assembly 111 is in transmission connection with the inner transmission rod 310; the second pump head 120 is provided with a second roller assembly 121, the second roller assembly 121 is provided with two layers of second rollers 122, and the second roller assembly 121 is in transmission connection with the outer transmission pipe 320.

[0045] As shown in Figures 1-4 The first motor 210 and the second motor 220 are same type motors, and are symmetrically arranged on the two sides of the pump body support pipe 400, in the prior art, one of the two motors is centrally arranged, and the other is offset, and is driven to the corresponding shaft through a belt transmission mode, on the one hand, the belt will be worn and deformed and elongated in the long-term operation process, and the precision cannot be guaranteed, on the other hand, this arrangement mode greatly increases the outer diameter of the whole split system, and a plurality of split systems need to be arranged on each pharmaceutical machine, which greatly wastes the already tight space and is inconvenient to install.

[0046] As shown in Figure 3 、 4 , 13, the gear set 330 includes a first output gear 331, a second output gear 332, a first transmission gear 333 and a second transmission gear 334, the first output gear 331 on the first motor 210, the first output gear 331 is in mesh with the first transmission gear 333 on the inner transmission rod 310, the second output gear 332 is in mesh with the second transmission gear 334 on the outer transmission pipe 320, the pitch circle diameters of the first output gear 331 and the second output gear 332 are same, the pitch circle diameters of the first transmission gear 333 and the second transmission gear 224 are same, the gear set 330 is arranged in a symmetrical form as far as possible to guarantee the dynamic balance in operation, the operation is more stable, the shaking is reduced, and the precision of the whole split system is effectively improved.

[0047] The above only describes the preferred embodiments of the present application and is not used to limit the present application, for those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A coaxial asynchronous multi-channel high-precision disassembly system, characterized in that: It includes a pump head assembly (100), a drive mechanism (200), and a transmission assembly (300). The pump head assembly (100) includes a first pump head (110) and a second pump head (120), with the first pump head (110) mounted on the upper part of the second pump head (120). The drive mechanism (200) includes a first motor (210) and a second motor (220). The first motor (210) is driven by a first pump head (110), and the second motor (220) is driven by a second pump head (120). The transmission assembly (300) includes an inner transmission rod (310) connecting a first motor (210) and a first pump head (110), and an outer transmission tube (320) connecting a second motor (220) and a second pump head (120). The inner transmission rod (310) is disposed inside the outer transmission tube (320) and is concentric with the outer transmission tube (320). The first motor (210) is connected to the lower part of the inner transmission rod (310) via a gear set (330), and the second motor (220) is connected to the lower part of the outer transmission tube (320) via a gear set (330). The inner transmission rod (310) and the outer transmission pipe (320) are disposed in the pump body support pipe (400). The diameter of the second pump head (120) is 1.5 to 2 times the diameter of the pump body support tube (400). The first motor (210) and the second motor (220) are motors of the same model and are symmetrically arranged on both sides of the pump body support tube (400). The gear set (330) includes a first output gear (331), a second output gear (332), a first transmission gear (333), and a second transmission gear (334). The first output gear (331) on the first motor (210) meshes with the first transmission gear (333) on the inner transmission rod (310). The second output gear (332) meshes with the second transmission gear (334) on the outer transmission tube (320). The pitch circle diameters of the first output gear (331) and the second output gear (332) are the same. The first transmission gear (333) and the second transmission gear (334) mesh with each other. The gears (334) have the same pitch circle diameter. Both the first pump head (110) and the second pump head (120) are provided with a pipeline assembly (500). The pipeline assembly (500) has a three-way connector (510). The two three-way connectors (510) are connected by two parallel connecting hoses (520). The two ends of the connecting hoses (520) are fixed to the housings of the first pump head (110) and the second pump head (120) by a pipe clamp device (530). The pipe clamp device (530) includes an upper housing (531) and a lower housing (532). The pipe clamp device (530) is provided with two fixing holes (533). An elastic clamping block (534) is provided in the fixing holes (533). The bottom of the lower housing (532) is provided with two connecting posts. The lower housing (532) is fixedly connected to the housings of the first pump head (110) and the second pump head (120) by the connecting posts.

2. The coaxial asynchronous multi-channel high-precision disassembly system according to claim 1, characterized in that: The inner wall surface of the mounting hole in the middle of the elastic clamping block (534) is provided with anti-loosening texture.

3. The coaxial asynchronous multi-channel high-precision disassembly system according to claim 1, characterized in that: The inner transmission rod (310) is provided with bearings (410) at both ends of the first pump head (110), the outer transmission pipe (320) is provided with bearings (410) at both ends of the second pump head (120), and the outer transmission pipe (320) is provided with bearings (410) at the lower end of the pump body support pipe (400).

4. The coaxial asynchronous multi-channel high-precision disassembly system according to claim 1, characterized in that: The first pump head (110) is provided with a first roller assembly (111), and the first roller assembly (111) is provided with two layers of first rollers (112), and the first roller assembly (111) is connected to the inner transmission rod (310) in a transmission connection; the second pump head (120) is provided with a second roller assembly (121), and the second roller assembly (121) is provided with two layers of second rollers (122), and the second roller assembly (121) is connected to the outer transmission tube (320) in a transmission connection.

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