CN217873191U

CN217873191U - Small peristaltic pump

Info

Publication number: CN217873191U
Application number: CN202221563904.1U
Authority: CN
Inventors: 熊颖申; 古礼华; 刘宏亮
Original assignee: Shenzhen Cnht Ltd
Current assignee: Shenzhen Cnht Ltd
Priority date: 2022-06-18
Filing date: 2022-06-18
Publication date: 2022-11-22
Anticipated expiration: 2032-06-18

Abstract

The utility model discloses a small-size peristaltic pump, including base, top cap and pump line, its characterized in that: the roller device comprises a roller bracket, a roller and a roller bracket cover, wherein the roller bracket is provided with a roller mounting shaft, the roller is sleeved on the roller mounting shaft, and the roller bracket is fixed at the free end of the roller mounting shaft and limits the roller in the roller mounting shaft; the output end of the driving device and the worm and gear unit are arranged between the roller supports, the position of the roller support cover for fixing the roller is arranged in the rolling device through structural improvement, the transmission stability and efficiency are improved, the transmission system adopts worm and gear transmission, a small motor is matched with the worm and gear transmission, and the rolling device has the advantages of being small in size, accurate in flow, low in cost and the like.

Description

Small peristaltic pump

Technical Field

The utility model relates to a peristaltic pump technical field, concretely relates to small-size peristaltic pump.

Background

Peristaltic pumps, which are pump bodies for conveying fluids by alternately squeezing and releasing flexible conveying hoses, are used in many fields of production and life. The existing peristaltic pump has the defects of small transmission ratio, large volume, high noise and the like due to structural or design limitations, the use experience is seriously influenced in the actual application process, and the application range of the peristaltic pump is also limited.

SUMMERY OF THE UTILITY MODEL

In order to overcome prior art's not enough, the utility model provides a small-size peristaltic pump through structural improvement, sets up the position of gyro wheel support lid fixed roller in rolling device, increases driven stability and efficiency to transmission system adopts the worm gear transmission, and small-size motor and worm gear driven cooperation have characteristics such as small, the flow is accurate, with low costs.

The utility model provides a technical scheme that its technical problem adopted is:

a small peristaltic pump comprises a base, a top cover and a pump pipe, wherein the base and the top cover are connected with each other and are provided with inner cavities, the inner cavities are provided with rolling devices and driving devices, each rolling device comprises a roller bracket, a roller and a roller bracket cover, the roller bracket is provided with a roller mounting shaft, the roller is sleeved on the roller mounting shaft, and the roller bracket is fixed at the free end of the roller mounting shaft and limits the roller in the roller mounting shaft; the output end of the driving device and the roller support are provided with a worm and gear unit, and the driving device can drive the roller support to rotate through the worm and gear unit and drive the roller to extrude the pump pipe through the roller support.

As a further improvement of the above technical solution, the roller bracket is provided with a worm wheel mounting shaft, a worm wheel in the worm wheel and worm unit is arranged on the worm wheel mounting shaft on the roller bracket, a worm in the worm wheel and worm unit is fixed on an output end of the driving device, and the worm wheel and the worm are engaged with each other.

As a further improvement of the technical scheme, the two ends of the pump pipe are both connected with pipe joints, and the pipe joints are positioned at the joint of the base and the top cover.

As a further improvement of the technical scheme, a binding belt is arranged at the joint of the pump pipe and the pipe joint.

As a further improvement of the above technical scheme, a positioning block is arranged on the pipe joint, a clamping groove matched with the positioning block is formed in the top cover, and the positioning block is clamped into the clamping groove and can prevent the pipe joint from moving back and forth.

As a further improvement of the above technical solution, the driving device includes a driving motor and a shaft sleeve, and a lower end of a worm in the worm gear unit is connected with an output shaft of the driving motor in an interference fit manner.

As a further improvement of the above technical scheme, a bearing mounting position is arranged on the inner side of the base, a bearing is arranged on the bearing mounting position, and the end part of the output shaft of the driving motor is mounted on the inner ring of the bearing.

As a further improvement of the technical scheme, the lower part of the base is fixedly connected with the driving motor through screws, and the driving motor is provided with mounting holes corresponding to the screws.

As a further improvement of the technical scheme, a worm wheel in the worm and gear unit adopts a helical gear.

As a further improvement of the above technical solution, the base and the top cover are fixedly connected by screws.

As a further improvement of the above technical scheme, the driving device is a small motor

The utility model has the advantages that: the utility model provides a small-size peristaltic pump through structural improvement, sets up the position of gyro wheel support lid fixed roller in rolling device, increases driven stability and efficiency to transmission system adopts the worm gear transmission, and small-size motor and worm gear driven cooperation have characteristics such as small, the flow is accurate, with low costs.

Drawings

The present invention will be further described with reference to the accompanying drawings and examples.

FIG. 1 is an overall assembly view of the present invention;

FIG. 2 is an exploded view of the structure of the present invention;

fig. 3 is a schematic view of the inner cavity assembly of the present invention.

Detailed Description

The conception, specific structure, and technical effects of the present invention will be clearly and completely described in conjunction with the embodiments and the accompanying drawings, so that the objects, features, and effects of the present invention can be fully understood. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the connection relations related in the patent do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection auxiliary components according to specific implementation conditions. The utility model discloses each technical feature in the creation can the interactive combination under the prerequisite that does not contradict conflict mutually.

Referring to fig. 1 to 3, a small peristaltic pump comprises a base 5, a top cover 6 and a pump tube 15, wherein the base 5 and the top cover 6 are fixedly connected through a screw 3 and are provided with inner cavities, and a rolling device and a driving device are arranged in the inner cavities.

15 both ends of pump line all are connected with coupling 2, and coupling 2 is located the junction of base 5 and top cap 6, is equipped with locating piece 19 on the coupling 2, sets up the draw-in groove of cooperation locating piece 19 on the top cap 6, and locating piece 19 card is gone into in the draw-in groove and can prevent the coupling back-and-forth movement, and pump line 15 is equipped with ribbon 14 with the junction of coupling 2, can control the coupling and the tightness of being connected of pump line through setting up the ribbon, guarantees that the fluid can not leak out in the transportation.

The rolling device includes roller support 20, gyro wheel 17 and roller support lid 18, roller support 20's one side is equipped with roller mounting axle 16, the another side is equipped with worm wheel installation axle 21, in this embodiment, roller mounting axle 16 is 3, gyro wheel 17 is 3, the last fixed orifices that corresponds of roller support lid 18 also is 3, gyro wheel 17 cover is established on roller mounting axle 16, roller support lid 18 is fixed at roller mounting axle 16's free end and is spacing roller 17 in roller mounting axle 16, can extrude pump line 15 when gyro wheel 17 rotates, realize the transportation function of pump, roller support lid 18 can fix the position of gyro wheel 17, make gyro wheel 17 can contact with pump line 15 steadily, can not squint with the position of pump line at the during operation gyro wheel, increase driven stability and efficiency.

The driving device is a small motor, such as 370 series and 320 series motors, the driving device comprises a driving motor 7 and a shaft sleeve 8, a worm gear unit is arranged between the output end of the driving motor 7 and a roller bracket 20, the worm gear unit drives the roller bracket to rotate through the driving motor 7 and drives a roller 17 to extrude a pump pipe 15 through the roller bracket, the worm gear unit comprises a worm gear 10 and a worm 9, the lower end of the worm 9 is in interference fit connection with the output shaft of the driving motor 7 so as to prevent connection falling or large torque transmission, the worm gear 10 adopts a helical gear, the helical gear has the advantages of smooth transmission, small impact, small vibration and small noise, and the like, the worm gear 10 is installed on a worm gear installation shaft 21, the worm 9 is fixed on the output end of the driving device, the worm gear 10 and the worm 9 are mutually meshed, a bearing installation position 12 is arranged on the inner side of the base 5, a bearing 11 is arranged on the bearing installation position 12, the end of the worm 9 is installed on the inner ring of the bearing 11, the lower side of the base 5 is fixedly connected with the driving motor 7 through a screw 4, and a corresponding screw installation hole 71 is arranged on the driving motor 7.

When the peristaltic pump works, the driving motor drives the worm to rotate, the worm drives the worm wheel to rotate, the roller wheel support is further controlled to rotate, the roller wheels on the roller wheel support can extrude the pump pipe, and the function of conveying fluid by the peristaltic pump is achieved. In practical application, the flow rate of the peristaltic pump can be indirectly adjusted by adjusting the type of the motor, the size of the pump pipe and the number of the rollers.

While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined by the appended claims.

Claims

1. The utility model provides a small-size peristaltic pump, includes base, top cap and pump line, its characterized in that: the base and the top cover are mutually connected and are provided with an inner cavity, the inner cavity is provided with a rolling device and a driving device,

the rolling device comprises a roller bracket, a roller and a roller bracket cover, wherein a roller mounting shaft is arranged on the roller bracket, the roller is sleeved on the roller mounting shaft, and the roller bracket is fixed at the free end of the roller mounting shaft and limits the roller in the roller mounting shaft;

the output end of the driving device and the roller support are provided with a worm and gear unit, and the driving device can drive the roller support to rotate through the worm and gear unit and drive the roller to extrude the pump pipe through the roller support.

2. A miniature peristaltic pump as set forth in claim 1, wherein: the roller support is provided with a worm wheel installation shaft, a worm wheel in the worm wheel and worm unit is arranged on the worm wheel installation shaft on the roller support, a worm in the worm wheel and worm unit is fixed on the output end of the driving device, and the worm wheel and the worm are meshed with each other.

3. A miniature peristaltic pump as set forth in claim 1, wherein: the two ends of the pump pipe are connected with pipe joints, and the pipe joints are located at the joint of the base and the top cover.

4. A miniature peristaltic pump as set forth in claim 3, wherein: and a binding belt is arranged at the joint of the pump pipe and the pipe joint.

5. A miniature peristaltic pump as set forth in claim 3, wherein: the pipe joint is provided with a positioning block, the top cover is provided with a clamping groove matched with the positioning block, and the positioning block is clamped into the clamping groove and can prevent the pipe joint from moving back and forth.

6. A miniature peristaltic pump as set forth in claim 1, wherein: the driving device comprises a driving motor and a shaft sleeve, and the lower end of a worm in the worm gear unit is connected with an output shaft of the driving motor in an interference fit manner.

7. A miniature peristaltic pump as set forth in claim 6, wherein: the bearing mounting position is arranged on the inner side of the base, a bearing is arranged on the bearing mounting position, and the end part of an output shaft of the driving motor is mounted on the inner ring of the bearing.

8. A miniature peristaltic pump as set forth in claim 7, wherein: the base below with driving motor passes through screw fixed connection, the last mounting hole that corresponds with the screw that is equipped with of driving motor.

9. A miniature peristaltic pump as set forth in claim 1, wherein: and a worm wheel in the worm and gear unit adopts a helical gear.

10. A miniature peristaltic pump as set forth in claim 1, wherein: the base is fixedly connected with the top cover through screws.

11. A miniature peristaltic pump as set forth in claim 1, wherein: the driving device is a small motor.