CN210343631U - Precision screw liquid injection pump - Google Patents

Abstract

The utility model discloses an accurate screw rod infusion pump, including infusion pump main part, motor mounting groove, motor, piston bush, piston, screw rod, joint bearing, liquid storage chamber, reservoir, catheter, liquid outlet, plunger, mounting panel, connecting bolt and cell type switch, set up the motor mounting groove on one side inner wall of infusion pump main part, the inside fixed mounting of motor mounting groove has the motor, inlay on the inner wall that the infusion pump main part is located one side of the motor and install the piston bush, the inside cup joint of piston bush is fixed with the piston; the utility model has the advantages that the whole structure is compact and reasonable, the automation level is high, the quantitative pumping of the liquid can be realized through the simple driving structures such as the screw rod and the piston, and the control of the later-stage liquid injection precision is facilitated; the problems that a traditional liquid injection pump is not precise enough, has higher requirements on operators, is not easy to operate and is not easy to adjust when the liquid injection amount is adjusted are solved.

Description

Precision screw liquid injection pump

Technical Field

The utility model relates to a filling pump technical field specifically is an accurate screw rod filling pump.

Background

The liquid injection pump is one of metering pumps, and is mainly used in industries related to liquid filling, such as battery liquid injection, liquid medicine liquid injection, oral liquid filling and the like; along with the continuous development of the current industrial level, the liquid injection precision requirement of the liquid injection pump is gradually improved; therefore, the liquid inlet quantity and the liquid outlet quantity of the liquid injection pump and the accuracy, the control and the adjustment of the liquid injection quantity of the liquid injection pump each time have strict requirements, but the driving structure of the existing liquid injection pump is simpler and not precise enough, has higher requirements on operators, is not easy to operate and complex when the liquid injection quantity is adjusted, is not easy to adjust, and has great influence on human factors.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an accurate screw rod infusion pump to solve the problem that proposes in the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: an accurate screw rod infusion pump comprises an infusion pump main body, a motor mounting groove, a motor, a piston sleeve, a piston, a screw hole, a screw rod, a joint bearing, a liquid storage chamber, a liquid storage tank, a liquid guide pipe, a liquid outlet, a plunger, a mounting plate, a connecting bolt and a groove-shaped switch, wherein the motor mounting groove is formed in one side inner wall of the infusion pump main body, the motor is fixedly mounted in the motor mounting groove, the piston sleeve is embedded and mounted on the inner wall of one side of the motor of the infusion pump main body, the piston is fixedly sleeved and connected in the piston sleeve, the screw hole is formed in the center of the inner wall of one side of the piston, one end of an output shaft of the motor is fixedly connected with the screw rod, the screw rod is screwed and connected in the screw hole, the liquid storage chamber is formed in the inner wall, the liquid storage device is characterized in that a liquid guide pipe is arranged on the inner wall of the bottom end of the liquid storage tank, one end of the liquid guide pipe is in through connection with the inner wall of one side of the liquid storage chamber, a liquid outlet is formed in the outer wall, located on one side of the liquid storage chamber, of the liquid injection pump main body, a plunger is arranged on the inner wall, located on one side of the liquid storage chamber, of the liquid injection pump main body, one end of the plunger penetrates through the outer wall of the liquid storage chamber and is fixedly welded with a mounting plate, a joint bearing is fixedly connected to the center.

Furthermore, a pagoda joint is fixedly connected to the outer wall of one side of the liquid outlet.

Furthermore, a groove-shaped switch is fixedly installed on the inner wall of the top end of the infusion pump main body, which is positioned on one side of the piston.

Further, the motor is a stepping motor.

Furthermore, one end of an output shaft of the motor is fixedly connected with one end of the screw rod through a coupler.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is: the utility model has the advantages of compact and reasonable overall structure and high automation level, and the quantitative pumping of liquid can be realized through simple driving structures such as a screw rod and a piston, thereby being beneficial to the control of the later-stage liquid injection precision; the problems that a traditional liquid injection pump is not precise enough, has higher requirements on operators, is not easy to operate and adjust when adjusting the liquid injection amount, and is greatly influenced by human factors are solved.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

FIG. 1 is a schematic view of the overall three-dimensional cutting structure of the present invention;

in the figure: 1. a priming pump main body; 2. a motor mounting groove; 3. a motor; 4. a piston sleeve; 5. a piston; 6. a screw hole; 7. a screw; 8. a knuckle bearing; 9. a liquid storage chamber; 10. a liquid storage tank; 11. a catheter; 12. a liquid outlet; 13. a plunger; 14. mounting a plate; 15. a connecting bolt; 16. a slot switch.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: a precise screw liquid injection pump comprises a liquid injection pump main body 1, a motor mounting groove 2, a motor 3, a piston sleeve 4, a piston 5, a screw hole 6, a screw 7, a joint bearing 8, a liquid storage chamber 9, a liquid storage tank 10, a liquid guide pipe 11, a liquid outlet 12, a plunger 13, a mounting plate 14, a connecting bolt 15 and a groove-shaped switch 16, wherein the motor mounting groove 2 is formed in the inner wall of one side of the liquid injection pump main body 1, the motor 3 is fixedly mounted in the motor mounting groove 2, the piston sleeve 4 is embedded and mounted in the inner wall of one side of the motor 3 of the liquid injection pump main body 1, the piston 5 is fixedly sleeved and connected in the piston sleeve 4, the screw hole 6 is formed in the center of the inner wall of one side of the piston 5, the screw 7 is fixedly connected to one end of an output shaft of the motor 3, the screw 7 is screwed and connected in the screw hole 6, the liquid storage chamber 9 is, a liquid guide pipe 11 is arranged on the inner wall of the bottom end of the liquid storage tank 10, one end of the liquid guide pipe 11 is communicated with the inner wall of one side of the liquid storage chamber 9, a liquid outlet 12 is arranged on the outer wall of the liquid injection pump main body 1 on one side of the liquid storage chamber 9, a plunger 13 is arranged on the inner wall of the liquid injection pump main body 1 on one side of the liquid storage chamber 9, one end of the plunger 13 penetrates through the outer wall of the liquid storage chamber 9 and is fixedly welded with a mounting plate 14, a joint bearing 8 is fixedly connected to the center of the outer wall of one side of the piston 5, and the joint bearing; a pagoda joint is fixedly connected to the outer wall of one side of the liquid outlet 12, so that the liquid outlet 12 is connected with a pipeline in the later period; a groove-shaped switch 16 is fixedly arranged on the inner wall of the top end of the liquid injection pump main body 1, which is positioned at one side of the piston 5, so that the stroke of the piston 5 can be controlled in the later period, and the control of the liquid injection amount can be realized; the motor 3 is a stepping motor, which is beneficial to the gradual feeding of the piston 5 and the plunger 13 in the later period; one end of an output shaft of the motor 3 is fixedly connected with one end of the screw 7 through a coupler, so that the motor 3 can work to drive the screw 7 to rotate; this liquid pump work is annotated to accurate screw rod, drive 7 reversals of screw rod through motor 3, cooperation through screw rod 7 and screw 6, thereby drive 5 later stages of piston and drive plunger 13 in liquid reserve room 9 later stage, make the liquid ration in the reservoir 10 inhale in the liquid reserve room 9, be provided with the check valve with 12 departments of liquid outlet in the catheter 11 between liquid reserve room 9 and the reservoir 10, drive 7 corotation of screw rod through motor 3, it shifts forward in liquid reserve room 9 to drive plunger 13, make liquid discharge in 12 departments of liquid outlet, accomplish and annotate liquid work, moreover, the steam generator is comparatively simple in structure, the automation level is higher, through screw rod 7, drive structures such as piston 5, can realize the quantitative pump-out of liquid, do benefit to the control of annotating the liquid precision.

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.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. The utility model provides a precision screw rod infusion pump, includes infusion pump main part (1), motor mounting groove (2), motor (3), piston cover (4), piston (5), screw (6), screw rod (7), joint bearing (8), stock solution room (9), reservoir (10), catheter (11), liquid outlet (12), plunger (13), mounting panel (14), connecting bolt (15) and cell type switch (16), its characterized in that: the infusion pump is characterized in that a motor mounting groove (2) is formed in the inner wall of one side of the infusion pump main body (1), a motor (3) is fixedly mounted inside the motor mounting groove (2), the infusion pump main body (1) is positioned on the inner wall of one side of the motor (3) and is embedded with a piston sleeve (4), a piston (5) is fixedly sleeved inside the piston sleeve (4), a screw hole (6) is formed in the center of the inner wall of one side of the piston (5) in a penetrating mode, a screw rod (7) is fixedly connected to one end of an output shaft of the motor (3), the screw rod (7) is screwed and connected inside the screw hole (6), a liquid storage chamber (9) is formed in the inner wall of the other side of the infusion pump main body (1), a liquid storage tank (10) is formed in the inner wall above the liquid storage chamber (9), and a liquid guide pipe (, and the one end of catheter (11) and the one side inner wall through connection of stock solution room (9), liquid outlet (12) have been seted up on the outer wall that liquid storage room (9) one side is located in infusion pump main part (1), infusion pump main part (1) is located and is provided with plunger (13) on the inner wall of stock solution room (9) one side, plunger (13) one end is run through the outer wall welded fastening in stock solution room (9) and is had mounting panel (14), fixedly connected with joint bearing (8) is located at one side outer wall center of piston (5), connecting bolt (15) fixed connection is passed through on the top of joint bearing (8) and mounting panel (14).

2. The precision screw liquid injection pump according to claim 1, characterized in that: the outer wall of one side of the liquid outlet (12) is fixedly connected with a pagoda joint.

3. The precision screw liquid injection pump according to claim 1, characterized in that: and a groove-shaped switch (16) is fixedly arranged on the inner wall of the top end of the infusion pump main body (1) on one side of the piston (5).

4. The precision screw liquid injection pump according to claim 1, characterized in that: the motor (3) is a stepping motor.

5. The precision screw liquid injection pump according to claim 1, characterized in that: one end of an output shaft of the motor (3) is fixedly connected with one end of the screw rod (7) through a coupler.

Images