CN212737504U

CN212737504U - Fluid pump

Info

Publication number: CN212737504U
Application number: CN202020965479.3U
Authority: CN
Inventors: 颜学斌; 贺斌; 李云峰; 林劲松
Original assignee: Guangzhou Ec Pack Packaging Equipment Co ltd
Current assignee: Guangzhou Ec Pack Packaging Equipment Co ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-03-19
Anticipated expiration: 2030-05-29

Abstract

The utility model relates to a fluid pump, which comprises a shell, an elastic sealing element and an elastic component, wherein the shell is provided with a first connecting port and a second connecting port which are used for externally connecting a fluid pipeline; the elastic sealing element is arranged in the shell and divides the inner space of the shell into a first cavity and a second cavity which are not communicated with each other, the first connecting port is communicated with the first cavity, and the second connecting port is communicated with the second cavity; the elastic component is arranged in the second cavity, one end of the elastic component is abutted with the shell, and the other end of the elastic component is abutted with the elastic sealing piece. Based on the structure, the fluid pump is connected with an ink system of the ink-jet printer through the first connecting port, the diluent can be pressurized and the cleaning work can be completed by the aid of the ink system, an external power supply is not needed, the pressure of the ink system of the ink-jet printer is high and accurate and adjustable, the fluid in the pump is accurate and controllable, and the cleaning operation of the ink-jet printer is accurately controlled; in addition, the fluid pump also has the advantages of simple and reliable structure, small occupied volume, no noise generation during working and the like.

Description

Fluid pump

Technical Field

The utility model relates to a technical field of pump class equipment especially relates to a fluid pump.

Background

The code spraying machine is a device which is controlled by software and used for marking products in a non-contact mode. After the traditional inkjet printer stops working, ink which is easy to dry is remained in the nozzle and the nozzle of the traditional inkjet printer, so that the nozzle and the nozzle are easy to block, and the next normal operation of the inkjet printer is influenced.

With the development of the code spraying machine towards intellectualization and environmental protection, the new code spraying machine is generally added with the automatic cleaning function of starting and stopping during the design and manufacture so as to prevent the nozzle from being blocked or realize the automatic cleaning of the nozzle due to the dry ink. The automatic cleaning function is usually implemented in the starting process before the inkjet printer performs inkjet printing or in the stopping process after the inkjet printing is completed, and the function is generally realized by pressurizing a certain amount of diluent into an ink pipeline and a nozzle through a cleaning pump, so that the dosage of the diluent is required to be accurate. The existing cleaning pump mostly adopts a direct current driven fluid pump, the structure is complex, an external power supply is needed, noise is easy to generate during working, pressure obtained by diluent is small, and the diluent is not easy to quantify.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a need not external power supply, ration is accurate, simple structure's fluid pump.

In order to achieve the above object, the present invention provides a fluid pump, comprising:

the device comprises a shell, a first connecting port and a second connecting port, wherein the shell is provided with the first connecting port and the second connecting port which are used for being externally connected with a fluid pipeline;

the elastic sealing element is arranged in the shell and divides the inner space of the shell into a first cavity and a second cavity which are not communicated with each other, the first connecting port is communicated with the first cavity, and the second connecting port is communicated with the second cavity;

and the elastic component is arranged in the second cavity, one end of the elastic component is abutted against the shell, and the other end of the elastic component is abutted against the elastic sealing piece.

In some embodiments of this application, the elastic component includes movable block and spring, the movable block includes pole portion and locates the top of pole portion one end pushes away the portion, the top of pushing away the portion with the elastic sealing member butt, the spring housing is located outside the pole portion, just the one end of spring with the casing butt, its other end with the bottom butt of pushing away the portion.

In some embodiments of the present application, the cross-sectional area of the push portion is greater than the cross-sectional area of the stem portion.

In some embodiments of the present application, a cavity wall of the second cavity has a convex pillar, the convex pillar is provided with a hole slot extending along an axial direction of the convex pillar, the rod portion is slidably disposed in the hole slot, and the spring is sleeved outside the convex pillar.

In some embodiments of the present application, the resilient sealing member is basin-shaped, and the push portion matches a basin bottom portion of the resilient sealing member.

In some embodiments of the present application, the pushing portion is provided with a first guiding groove and a second guiding groove, the first guiding groove is disposed on the surface of the pushing portion facing the elastic sealing element, the second guiding groove penetrates through the pushing portion along the axial direction of the rod portion, and the first guiding groove is communicated with the second guiding groove.

In some embodiments of this application, the chamber wall of first cavity have with elastic sealing element's pelvic floor portion assorted action face, be equipped with third guiding gutter and fourth guiding gutter on the action face, the third guiding gutter is followed a side edge of action face extends to the opposite side edge of action face, the fourth guiding gutter is located the center of action face, just the third guiding gutter with the fourth guiding gutter is linked together.

In some embodiments of the present application, one end of the third diversion trench extends to the first connection port.

In some embodiments of the present application, the housing includes a first housing portion and a second housing portion, the first cavity is enclosed by the first housing portion and the elastic sealing member, the second cavity is enclosed by the second housing portion and the elastic sealing member, and the first housing portion and the second housing portion are detachably connected.

In some embodiments of the present application, an edge of the elastic sealing member has a flange, and a joint of the first shell portion and the second shell portion is provided with an annular mounting groove into which the flange extends to fix the elastic sealing member.

The utility model provides a fluid pump, compared with the prior art, its beneficial effect lies in:

when the ink jet printing machine works, the first connecting port of the fluid pump is externally connected with a fluid pipeline of an ink system of the ink jet printing machine, and the second connecting port is externally connected with a fluid pipeline for conveying diluent; when the fluid pressure in the first cavity is larger than the elastic force of the elastic component, the fluid in the first cavity pushes the elastic sealing element to swing and compress the elastic component, the volume of the first cavity is increased, the volume of the second cavity is reduced, and at the moment, the diluent in the second cavity is discharged from the second connecting port and enters an injection pipeline of the code spraying machine for cleaning; when the fluid pressure in the first cavity is smaller than the elastic force of the elastic component, the elastic component stretches and pushes the elastic sealing element to swing reversely, the volume of the first cavity is reduced, the volume of the second cavity is enlarged, at the moment, negative pressure is generated in the second cavity, and diluent in a diluent box and a pipeline of the ink-jet printer is sucked by the second connecting port and stored in the second cavity for next cleaning. Based on this, this fluid pump just only leans on the ink system of ink jet numbering machine to enable the diluent pressure boost and accomplish the washing to the injection pipeline and the nozzle of ink jet numbering machine, need not external power supply, because the ink system pressure of ink jet numbering machine is higher and accurate adjustable, therefore fluid pressure and flow in the first cavity are controllable, and correspondingly, fluid pressure and the flow of the diluent in the second cavity are also accurate controllable, and then can control the washing operation to ink jet numbering machine accurately. In addition, the fluid pump also has the advantages of simple and reliable structure, small occupied volume, no noise generation during working and the like.

Drawings

FIG. 1 is a cross-sectional view of a fluid pump of an embodiment of the present invention with the spring extended;

fig. 2 is a cross-sectional view of a fluid pump according to an embodiment of the present invention when the spring is compressed.

In the figure: 1. a housing; 11. a first shell portion; 111. a first connection port; 112. a first cavity; 1121. acting surface; 113. a third guiding gutter; 114. a fourth guiding gutter; 12. a second shell portion; 121. a second connection port; 122. a second cavity; 123. a convex column; 1231. a hole groove; 13. mounting grooves; 2. an elastomeric seal; 21. a basin bottom; 22. a flange; 3. an elastic component; 31. a movable block; 311. a pushing part; 3111. a first diversion trench; 3112. a second guiding gutter; 312. a rod portion; 32. a spring.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It will be understood that in the description of the present application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application. The terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, i.e. a feature defined as "first", "second" may explicitly or implicitly include one or more of such features. Further, unless otherwise specified, "a plurality" means two or more.

It should be noted that, in the description of the present application, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

As shown in fig. 1 and fig. 2, an embodiment of the present invention provides a fluid pump, which includes a housing 1, an elastic sealing element 2, and an elastic component 3, wherein the housing 1 is provided with a first connection port 111 and a second connection port 121 for externally connecting a fluid pipeline, and preferably, two second connection ports 121 are provided; the elastic sealing element 2 is made of rubber or plastic, is arranged in the shell 1 and divides the inner space of the shell 1 into a first cavity 112 and a second cavity 122 which are not communicated with each other, the first connecting port 111 is communicated with the first cavity 112, and the second connecting port 121 is communicated with the second cavity 122; the elastic component 3 is disposed in the second cavity 122, one end of the elastic component 3 abuts against the housing 1, and the other end of the elastic component 3 abuts against the elastic sealing element 2.

When the fluid pump works, the first connecting port 111 of the fluid pump is externally connected with a fluid pipeline of an ink jet printing machine ink system, and the second connecting port 121 is externally connected with a fluid pipeline for conveying diluent; when the fluid pressure in the first cavity 112 is greater than the elastic force of the elastic component 3, the fluid in the first cavity 112 pushes the elastic sealing element 2 to swing and compress the elastic component 3, the volume of the first cavity 112 is increased, the volume of the second cavity 122 is decreased, and at the moment, the diluent in the second cavity 122 is discharged from the second connecting port 121 and enters the spraying pipeline of the inkjet printer to be cleaned; when the fluid pressure in the first cavity 112 is smaller than the elastic force of the elastic component 3, the elastic component 3 stretches and pushes the elastic sealing element 2 to swing reversely, the volume of the first cavity 112 decreases, the volume of the second cavity 122 increases, at this time, negative pressure is generated in the second cavity 122, and the diluent in the diluent tank and the diluent in the pipeline of the inkjet printer are sucked by the second connecting port 121 and stored in the second cavity 122 for next cleaning. Based on this, this fluid pump just only leans on the ink system of ink jet numbering machine to enable the diluent pressure boost and accomplish the washing to the injection pipeline and the nozzle of ink jet numbering machine, need not external power supply, because the ink system pressure of ink jet numbering machine is higher and accurate adjustable, therefore fluid pressure and flow in the first cavity 112 are controllable, and correspondingly, fluid pressure and the flow of the diluent in the second cavity 122 are also accurate controllable, and then can control the cleaning operation to the ink jet numbering machine accurately. In addition, the fluid pump also has the advantages of simple and reliable structure, small occupied volume, no noise generation during working and the like.

Optionally, as shown in fig. 1, as a specific embodiment of the fluid pump provided by the present invention, the elastic component 3 includes a movable block 31 and a spring 32, the movable block 31 includes a rod portion 312 and a pushing portion 311 disposed at one end of the rod portion 312, a top of the pushing portion 311 abuts against the elastic sealing member 2, the spring 32 is sleeved outside the rod portion 312, one end of the spring 32 abuts against the housing 1, and the other end of the spring abuts against a bottom of the pushing portion 311. In this way, the spring 32 pushes the pushing part 311 of the movable block 31 to press the elastic sealing member 2, and when the fluid pressure in the first cavity 112 is greater than the elastic force of the spring 32, the elastic sealing member 2 swings toward the pushing part 311 and compresses the spring 32; when the fluid pressure in the first cavity 112 is smaller than the elastic force of the spring 32, the spring 32 pushes the elastic sealing member 2 to swing reversely through the pushing portion 311 of the movable block 31, so that the volume change of the first cavity 112 and the second cavity 122 is realized.

Further, as shown in fig. 1, the cross-sectional area of the pushing portion 311 is larger than that of the rod portion 312. Accordingly, the contact area between the pushing portion 311 and the elastic sealing member 2 is larger, and the elastic force can be uniformly transmitted to the elastic sealing member 2 through the pushing portion 311, so that the elastic sealing member 2 is deformed more uniformly.

Optionally, as shown in fig. 1, as a specific embodiment of the fluid pump provided by the present invention, the cavity wall of the second cavity 122 has a convex pillar 123, the convex pillar 123 is provided with a hole groove 1231 extending along an axial direction thereof, the rod portion 312 is slidably disposed in the hole groove 1231, and the spring 32 is sleeved outside the convex pillar 123. So, hole 1231 has played the effect spacing and direction to elastic component 3, makes movable block 31 make a round trip to slide along the axial of projection 123 to guide spring 32 along the axial of projection 123 to take place deformation, make spring 32's elastic force transfer more smooth and easy.

Alternatively, as shown in fig. 1, as a specific embodiment of the fluid pump provided by the present invention, the elastic sealing member 2 is in a basin shape, and the pushing portion 311 is matched with the basin bottom 21 of the elastic sealing member 2. Accordingly, the pushing portion 311 is sufficiently abutted against the tray bottom 21, so that the elastic seal 2 is more uniformly stressed and is more easily deformed.

Optionally, as shown in fig. 1, as a specific embodiment of the fluid pump provided by the present invention, the pushing portion 311 is provided with a first guiding groove 3111 and a second guiding groove 3112, the first guiding groove 3111 is disposed on the surface of the pushing portion 311 facing the elastic sealing element 2, the second guiding groove 3112 penetrates the pushing portion 311 along the axial direction of the rod portion 312, and the first guiding groove 3111 is communicated with the second guiding groove 3112. Therefore, the diluent can flow to the first guiding gutter 3111 through the second guiding gutter 3112, and is more smoothly and uniformly distributed on the surface of the pushing part 311 facing the elastic sealing element 2, and generates more uniform pressure on the elastic sealing element 2, thereby preventing the uneven stress on the contact surface between the elastic sealing element 2 and the pushing part 311.

Optionally, as shown in fig. 2, as a specific embodiment of the fluid pump provided by the present invention, the cavity wall of the first cavity 112 has an action surface 1121 matched with the bottom 21 of the elastic sealing element 2, a third guiding gutter 113 and a fourth guiding gutter 114 are disposed on the action surface 1121, the third guiding gutter 113 extends from one side edge of the action surface 1121 to the other side edge of the action surface 1121, the fourth guiding gutter 114 is disposed at the center of the action surface 1121, and the third guiding gutter 113 is communicated with the fourth guiding gutter 114; in addition, one end of the third guiding groove 113 extends to the first connection port 111. Based on this, the fluid flows into the third guiding groove 113 from the first connection port 111, then flows into the fourth guiding groove 114, and further flows into the first cavity 112, and the third guiding groove 113 and the fourth guiding groove 114 on the action surface 1121 make the fluid entering the first cavity 112 flow into the first cavity 112 more smoothly and contact with the bottom 21 of the elastic sealing element 2 more sufficiently, so that the efficiency of the fluid pump during operation is improved, and the efficiency of cleaning and maintaining the fluid pump itself is also improved.

Alternatively, as shown in fig. 1, as a specific embodiment of the fluid pump provided by the present invention, the housing 1 includes a first housing portion 11 and a second housing portion 12, the first cavity 112 is enclosed by the first housing portion 11 and the elastic sealing element 2, the second cavity 122 is enclosed by the second housing portion 12 and the elastic sealing element 2, and the first housing portion 11 and the second housing portion 12 are detachably connected by bolts, flanges, threads, etc. Therefore, the shell 1 is convenient to disassemble and assemble, and the condition inside the shell 1 is convenient to check.

Alternatively, as shown in fig. 1, as a specific embodiment of the fluid pump provided by the present invention, the edge of the elastic sealing member 2 has a flange 22, the joint of the first shell portion 11 and the second shell portion 12 is provided with an annular mounting groove 13, and the flange 22 extends into the mounting groove 13 to fix the elastic sealing member 2. Based on this, the elastic sealing member 2 is fixed between the first and

second case portions

11 and 12, partitions the inner space of the case 1 into the first and

second cavities

112 and 122, and allows the first and

second cavities

112 and 122 not to communicate with each other.

The utility model discloses an action process does: the ink jet printer ink system conveys fluid into the first cavity 112 through the first connecting port 111, when the fluid pressure in the first cavity 112 is greater than the elastic force of the spring 32, the fluid in the first cavity 112 pushes the elastic sealing element 2 to swing and compress the spring 32, the volume of the first cavity 112 is increased, the volume of the second cavity 122 is reduced, and at the moment, the diluent in the second cavity 122 is discharged from the second connecting port 121 and enters an ejection pipeline of the ink jet printer to be cleaned; after a certain time of cleaning, the ink system of the ink jet numbering machine changes pressure, the fluid in the first cavity 112 flows out through the first connecting port 111, when the fluid pressure in the first cavity 112 is smaller than the elastic force of the spring 32, the spring 32 extends and pushes the elastic sealing element 2 to swing reversely, the volume of the first cavity 112 is reduced, the volume of the second cavity 122 is increased, at the moment, negative pressure is generated in the second cavity 122, and diluent in a diluent tank and a pipeline of the ink jet numbering machine is sucked by the second connecting port 121 and stored in the second cavity 122 to be cleaned and used next time.

To sum up, the embodiment of the present invention provides a fluid pump, which mainly comprises a casing 1, an elastic sealing element 2 and an elastic component 3, wherein the casing 1 is provided with a first connection port 111 and a second connection port 121 for externally connecting a fluid pipeline; the elastic sealing element 2 is arranged in the shell 1 and divides the inner space of the shell 1 into a first cavity 112 and a second cavity 122 which are not communicated with each other, the first connecting port 111 is communicated with the first cavity 112, and the second connecting port 121 is communicated with the second cavity 122; the elastic component 3 is arranged in the second cavity, one end of the elastic component 3 is abutted against the shell 1, and the other end of the elastic component 3 is abutted against the elastic sealing piece 2. Compared with the prior art, the fluid pump has the advantages of no need of an external power supply, accurate quantification, simple structure and the like.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. A fluid pump, comprising:

2. The fluid pump of claim 1, wherein:

the elastic component comprises a movable block and a spring, the movable block comprises a rod part and is arranged at the pushing part at one end of the rod part, the top of the pushing part is abutted to the elastic sealing element, the spring sleeve is arranged outside the rod part, one end of the spring is abutted to the shell, and the other end of the spring is abutted to the bottom of the pushing part.

3. The fluid pump of claim 2, wherein:

the cross-sectional area of the pushing part is larger than that of the rod part.

4. The fluid pump of claim 2, wherein:

the cavity wall of the second cavity is provided with a convex column, the convex column is provided with a hole groove extending along the axial direction of the convex column, the rod part can be slidably arranged in the hole groove, and the spring is sleeved outside the convex column.

5. The fluid pump of claim 2, wherein:

the elastic sealing element is basin-shaped, and the pushing part is matched with the bottom of the elastic sealing element.

6. The fluid pump of claim 5, wherein:

the pushing part is provided with a first guide groove and a second guide groove, the first guide groove is formed in the surface, facing the elastic sealing element, of the pushing part, the second guide groove penetrates through the pushing part along the axial direction of the rod part, and the first guide groove is communicated with the second guide groove.

7. The fluid pump of claim 5, wherein:

the chamber wall of first cavity have with elastic sealing element's pelvic floor assorted service face, be equipped with third guiding gutter and fourth guiding gutter on the service face, the third guiding gutter is followed one side edge of service face extends to the opposite side edge of service face, the fourth guiding gutter is located the center of service face, just the third guiding gutter with the fourth guiding gutter is linked together.

8. The fluid pump of claim 7, wherein:

one end of the third diversion trench extends to the first connection port.

9. The fluid pump of claim 1, wherein:

the shell comprises a first shell part and a second shell part, the first cavity is enclosed by the first shell part and the elastic sealing element, the second cavity is enclosed by the second shell part and the elastic sealing element, and the first shell part and the second shell part are detachably connected.

10. The fluid pump of claim 9, wherein:

the edge of the elastic sealing element is provided with a flange, an annular mounting groove is formed in the joint of the first shell part and the second shell part, and the flange extends into the mounting groove to fix the elastic sealing element.