CN215890398U

CN215890398U - Quick-change peristaltic pump

Info

Publication number: CN215890398U
Application number: CN202121912243.4U
Authority: CN
Inventors: 张利友
Original assignee: Kamoer Fluid Technology Shanghai Co Ltd
Current assignee: Kamoer Fluid Technology Shanghai Co Ltd
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2022-02-22
Anticipated expiration: 2031-08-16

Abstract

The utility model discloses a quick-change peristaltic pump, which comprises a main body assembly and a quick-change assembly, wherein the main body assembly comprises an upper cover, a lower cover, a base, a synchronous disc and a motor, the upper cover is fixedly arranged above the base, the lower cover is slidably arranged above the base, the synchronous disc is arranged above the base, the motor is arranged below the base, the output end of the motor is rotatably connected with the synchronous disc, the quick-change assembly comprises an eccentric wheel, an eccentric wheel shaft, a knob and a guide rail, the eccentric wheel shaft is eccentrically arranged on the eccentric wheel, the eccentric wheel shaft and the lower cover are fixedly inserted in an inserting manner, the knob is arranged at the top end of the eccentric wheel shaft, an eccentric wheel groove is formed in the base, the eccentric wheel moves in the eccentric wheel groove, the guide rail is fixedly arranged at the bottom end of the side part of the lower cover, a guide rail sliding groove is formed in the base, and the guide rail is slidably clamped in the guide rail sliding groove. According to the utility model, the eccentric wheel shaft is driven to rotate by swinging the knob, and then the rotary motion of the eccentric wheel is converted into the up-and-down sliding motion of the lower cover, so that the purpose of tube replacement is achieved, and the tube replacing device is simple in structure and convenient and fast to operate.

Description

Quick-change peristaltic pump

Technical Field

The utility model relates to the technical field of peristaltic pumps, in particular to a quick-change peristaltic pump.

Background

The peristaltic pump is a liquid conveying device capable of controlling flow rate, and generally comprises a peristaltic pump driver, a peristaltic pump head and a peristaltic pump pipe. It is common to move the contents of the tube in a direction by repeatedly compressing the flexible tube, with the flow rate determined by the diameter of the tube and the rate of compression, for use in systems such as liquid chromatography and perfusion. The peristaltic pump is similar to a hose filled with fluid and is based on the principle that the fluid in the hose moves forward as the fingers slide forward, and only the rollers replace the fingers. Peristaltic pumps pump fluid by alternately squeezing and releasing a flexible delivery hose of the pump, i.e., a section of pump tubing between two rotating rollers forming a "pillow" shape of fluid. The pump operates to produce a pulsed flow even with high frequency, small "pillow" flows, and the hose needs to be replaced frequently because the peristaltic pump can deliver a variety of materials with abrasive, corrosive, and oxygen sensitive characteristics.

The existing peristaltic pump is complex in structure, and the replacement of the hose is quite complicated, so that a new quick-change peristaltic pump is needed.

SUMMERY OF THE UTILITY MODEL

The object of the present invention is to provide a quick-change peristaltic pump, which solves the problems mentioned above in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: a quick-change peristaltic pump includes a body assembly and a quick-change assembly.

The main body component comprises an upper cover, a lower cover, a base, a synchronous disc and a motor, wherein the upper cover is fixedly arranged above the base, the lower cover is slidably arranged above the base, the upper cover and the lower cover are correspondingly attached, the synchronous disc is arranged above the base, the motor is arranged below the base, and the output end of the motor is rotatably connected with the synchronous disc;

the quick change component comprises an eccentric wheel, an eccentric wheel shaft, a knob and a guide rail, the eccentric wheel shaft is eccentrically arranged on the eccentric wheel, the eccentric wheel shaft and the lower cover are fixedly inserted in an inserting mode, the knob is installed at the top end of the eccentric wheel shaft, an eccentric wheel groove is formed in the base, the eccentric wheel moves in the eccentric wheel groove, the guide rail is fixedly installed at the bottom end of the side portion of the lower cover, a guide rail sliding groove is formed in the base, and the guide rail is slidably clamped in the guide rail sliding groove.

In one embodiment of the utility model, a movable buckle shell is arranged above the base, a pin is arranged on the side part of the lower cover, which is adjacent to the upper cover, the pin is rotatably connected with the movable buckle shell, the movable buckle shell is attached to the synchronous disc, and the middle part of the movable buckle shell is in clearance fit with the synchronous disc rotor.

In one embodiment of the utility model, the movable buckle shell is fixedly provided with a spring adjacent to the side wall of the lower cover, and the other end of the spring is attached to the lower cover.

In one embodiment of the utility model, the top of the synchronous disk is connected with the upper cover, and ball bearings are arranged at the upper end and the lower end of the synchronous disk.

In one embodiment of the present invention, the motor is a stepping motor, and a coupling is connected between the output end of the motor and the synchronization disk.

In one embodiment of the utility model, the bottom of the base is provided with a connecting plate, and the motor is arranged below the connecting plate.

In one embodiment of the utility model, the upper cover and the lower cover are provided with pipe grooves on both sides.

In one embodiment of the utility model, a plurality of pipe clamps are arranged inside the upper cover and the lower cover.

In summary, due to the adoption of the technology, the utility model has the beneficial effects that:

according to the utility model, the eccentric wheel shaft is driven to rotate through swinging the knob, so that the eccentric wheel is rotated, and due to the characteristics of the eccentric wheel, the rotation motion of the eccentric wheel is converted into the up-and-down sliding motion of the lower cover, so that the lower cover is opened and closed to achieve the purpose of tube replacement;

the synchronous disc is matched with the ball bearing, so that the flow stability is ensured while the pump pipe pulse is reduced, and the precision of the peristaltic pump is improved;

the movable buckle shell is matched with the spring for use, so that the problem of poor flow precision caused by the wall thickness tolerance of the pump pipe is effectively solved.

Drawings

FIG. 1 is a schematic perspective exploded view of the present invention;

FIG. 2 is a side view of the quick-change assembly and the lower cap of the present invention;

FIG. 3 is a perspective view of the quick-change assembly and the lower cap of the present invention;

FIG. 4 is a side view of the cover and quick-change assembly of the present invention;

fig. 5 is a schematic perspective cross-sectional view of the present invention.

In the figure: 100. a body assembly; 110. an upper cover; 120. a lower cover; 130. a base; 140. a synchronization disc; 150. a motor; 160. a connecting plate; 170. a coupling; 180. a ball bearing; 190. a pipe groove; 191. a pipe clamp; 200. a quick-change component; 210. an eccentric wheel groove; 220. an eccentric wheel; 230. an eccentric wheel shaft; 240. a knob; 250. a guide rail chute; 260. a guide rail; 270. a movable buckle shell; 271. a pin; 272. a spring.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the present invention, it is to be understood that the terms indicating an orientation or positional relationship are based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art from the specification.

Example 1

Referring to fig. 1-5, the present invention provides a quick-change peristaltic pump, which includes a main body assembly 100 and a quick-change assembly 200, wherein the quick-change assembly 200 is installed inside the main body assembly 100, the main body assembly 100 is used for realizing the function of the peristaltic pump, and the quick-change assembly 200 is used for facilitating the hose replacement.

The main body assembly 100 comprises an upper cover 110, a lower cover 120, a base 130, a synchronous disc 140 and a motor 150, wherein the upper cover 110 is fixedly installed above the base 130, the lower cover 120 is slidably installed above the base 130, the upper cover 110 and the lower cover 120 are correspondingly attached, the synchronous disc 140 is installed above the base, a connecting plate 160 is installed at the bottom of the base 130, and the motor 150 is installed below the connecting plate 160. The output of the motor 150 is rotatably connected to the synchronization disc 140.

The quick-change assembly 200 comprises an eccentric wheel 220, an eccentric wheel shaft 230, a knob 240 and a guide rail 260, wherein the eccentric wheel shaft 230 is eccentrically arranged on the eccentric wheel 220, the eccentric wheel shaft 230 and the lower cover 120 are fixedly inserted, the knob 240 is installed at the top end of the eccentric wheel shaft 230, an eccentric wheel groove 210 is formed in the base 130, the eccentric wheel 220 moves in the eccentric wheel groove 210, the guide rail 260 is fixedly installed at the bottom end of the side portion of the lower cover 120, a guide rail sliding groove 250 is formed in the base 130, and the guide rail 260 is slidably clamped in the guide rail sliding groove 250 and used for limiting the sliding direction and the sliding distance of the lower cover 120. The knob 240 rotates, the eccentric shaft 230 rotates, and the eccentric 220 slides in the eccentric groove 210 due to the characteristics of the eccentric 220, so that the rotation motion of the eccentric 220 is converted into the up-and-down sliding motion of the lower cover 120, and the lower cover 120 is opened and closed to achieve the purpose of tube replacement.

In the specific arrangement, as shown in fig. 3, 4 and 5, a movable buckle shell 270 is arranged above the base 130, a pin 271 is installed on the side of the lower cover 120 adjacent to the upper cover 110, the pin 271 is rotatably connected with the movable buckle shell 270, the movable buckle shell 270 is attached to the synchronization disc 140, and the middle of the movable buckle shell 270 is in clearance fit with the rotor of the synchronization disc 140. Meanwhile, the two sides of the upper cover 110 and the lower cover 120 are both provided with pipe grooves 190, and the left and the right of the pipe grooves 190 are provided with two pipe grooves, which are respectively used for clamping the water inlet and the water outlet of the pump pipe. The upper cover 110 and the lower cover 120 are provided with a plurality of pipe clamps 191 inside, and the hose is inserted from the pipe groove 190, is limited by the pipe clamps 191, penetrates the middle part of the movable buckle shell 270, winds around the outside of the rotor of the timing disc 140, and finally comes out from the pipe groove 190 at the other end.

Referring to fig. 2, 4 and 5, a spring 272 is fixedly mounted on the movable buckle shell 270 adjacent to the side wall of the lower cover 120, and the other end of the spring 272 is attached to the lower cover 120. When the hose changes the size, the extrusion force that the shell 270 received is detained in the activity changes, and then makes spring 272 degree of deformation change for the shell 270 is detained in the activity buffering adaptation, effectively improves the poor problem of flow precision because of the pump line wall thickness tolerance brings.

Referring to fig. 1 and 3, the synchronization disc 140 is configured as a four-rotor synchronization disc, the top of the synchronization disc 140 is connected to the upper cover 110, and ball bearings 180 are mounted at both the upper and lower ends of the synchronization disc 140. The motor 150 is a stepping motor 150, and a coupling 170 is connected between the output end of the motor 150 and the synchronization disk 140. The synchronization disc 140 cooperates with the ball bearing 180 to reduce the pump tube pulse while ensuring the flow stability, thereby providing the precision of the peristaltic pump.

The working principle is as follows: when the flexible pipe is used, the flexible pipe is inserted from the pipe groove 190, limited by the pipe clamp 191, penetrates into the middle part of the movable buckle shell 270, is wound outside the rotor of the synchronizing disc 140 at the same time, and finally comes out from the pipe groove 190 at the other end, and the motor 150 drives the synchronizing disc 140 to rotate through the coupler 170 so as to quantitatively convey liquid in the flexible pipe; when the hose is replaced, the knob 240 rotates, the eccentric wheel shaft 230 rotates, and further the eccentric wheel 220 slides in the eccentric wheel groove 210 due to the characteristics of the eccentric wheel 220, so that the rotary motion of the eccentric wheel 220 is converted into the up-and-down sliding motion of the lower cover 120, and further the lower cover 120 is opened and closed to achieve the purpose of hose replacement, and the hose replacing device is simple in structure and convenient to operate. .

It should be noted that: the model specification of the motor 150 needs to be determined by type selection according to the actual specification of the device, and the specific type selection calculation method adopts the prior art in the field, so detailed description is omitted.

The power supply of the motor 150 and its principle will be clear to a person skilled in the art and will not be described in detail here.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Claims

1. A quick-change peristaltic pump, comprising:

the main body assembly (100) comprises an upper cover (110), a lower cover (120), a base (130), a synchronous disc (140) and a motor (150), wherein the upper cover (110) is fixedly installed above the base (130), the lower cover (120) is installed above the base (130) in a sliding mode, the upper cover (110) is correspondingly attached to the lower cover (120), the synchronous disc (140) is installed above the base, the motor (150) is installed below the base (130), and the output end of the motor (150) is rotatably connected with the synchronous disc (140);

the quick-change assembly (200) comprises an eccentric wheel (220), an eccentric wheel shaft (230), a knob (240) and a guide rail (260), wherein the eccentric wheel shaft (230) is eccentrically arranged on the eccentric wheel (220), the eccentric wheel shaft (230) and the lower cover (120) are fixedly inserted, the knob (240) is installed at the top end of the eccentric wheel shaft (230), an eccentric wheel groove (210) is formed in the base (130), the eccentric wheel (220) moves in the eccentric wheel groove (210), the guide rail (260) is fixedly installed at the bottom end of the side portion of the lower cover (120), a guide rail sliding groove (250) is formed in the base (130), and the guide rail (260) is slidably clamped in the guide rail sliding groove (250).

2. A quick-change peristaltic pump as claimed in claim 1, wherein: base (130) top is provided with the activity and detains shell (270), lower cover (120) are close to pin (271) are installed to the lateral part of upper cover (110), pin (271) with shell (270) are detained in the activity rotate the connection, the activity detain shell (270) with synchronization disc (140) laminate mutually, the activity detain shell (270) middle part with clearance fit between synchronization disc (140) the rotor.

3. A quick-change peristaltic pump as claimed in claim 2, wherein: the movable buckle shell (270) is adjacent to the side wall of the lower cover (120) and is fixedly provided with a spring (272), and the other end of the spring (272) is attached to the lower cover (120).

4. A quick-change peristaltic pump as claimed in claim 1, wherein: the top of the synchronous disc (140) is connected with the upper cover (110), and ball bearings (180) are mounted at the upper end and the lower end of the synchronous disc (140).

5. A quick-change peristaltic pump as claimed in claim 1, wherein: the motor (150) is set as a stepping motor (150), and a coupler (170) is connected between the output end of the motor (150) and the synchronous disc (140).

6. A quick-change peristaltic pump as claimed in claim 1, wherein: the base (130) bottom is installed connecting plate (160), motor (150) are installed connecting plate (160) below.

7. A quick-change peristaltic pump as claimed in claim 1, wherein: both sides of the upper cover (110) and the lower cover (120) are provided with pipe grooves (190).

8. A quick-change peristaltic pump as claimed in claim 1, wherein: the upper cover (110) and the lower cover (120) are internally provided with a plurality of pipe clamps (191).