CN213039430U

CN213039430U - Pump head package assembly of measuring pump

Info

Publication number: CN213039430U
Application number: CN202022150583.XU
Authority: CN
Inventors: 蒋一品
Original assignee: Taicang Taixin Automation Equipment Co ltd
Current assignee: Taicang Taixin Automation Equipment Co ltd
Priority date: 2020-09-27
Filing date: 2020-09-27
Publication date: 2021-04-23
Anticipated expiration: 2030-09-27

Abstract

The utility model discloses a pump head assembly structure of a metering pump, which comprises a pump body, a pump head and a piston pipe, the left side of the pump body is provided with the piston tube, a piston cavity is arranged in the piston tube, sealing rubber is arranged between the piston tube and the pump body, the sealing rubber is annular, the size of the inner ring is the same as that of the piston cavity, the piston pipe is fixedly connected with the pump body through a first bolt, a pump head is arranged on one side of the piston pipe, which is far away from the pump body, a groove is arranged at the joint of the pump head and the piston pipe, a diaphragm is arranged between the pump head and the piston pipe, the diaphragm is circular, the outermost ring is cylindrical, the diaphragm is clamped in the groove, the pump head is fixedly connected with the piston tube through a second bolt, the pump head upper end is provided with export one-way check valve, the pump head lower extreme is provided with the one-way check valve of entry. The utility model discloses simple structure has improved the leakproofness and the corrosion protection nature of device.

Description

Pump head package assembly of measuring pump

Technical Field

The utility model relates to a pump head technical field of measuring pump specifically is a pump head package assembly of measuring pump.

Background

The diaphragm type metering pump replaces a piston with a specially designed and processed flexible diaphragm, realizes reciprocating motion under the action of a driving mechanism, completes the processes of suction and discharge, structurally realizes the isolation between a metered fluid and the driving mechanism due to the isolation effect of the diaphragm, and is widely applied to industries and departments such as petroleum, chemical engineering, food, pharmacy, water plants and the like.

The frequency of use of present diaphragm type measuring pump in daily life is bigger and bigger, so people also improve increasingly to the quality requirement of diaphragm type measuring pump, and the leakproofness of diaphragm type measuring pump is one of the decisive factors of deciding the water pump quality, especially the leakproofness to the pump head, reveal when pumping medium, can cause the pollution to pump and environment, the leakproofness on the connected mode of pump head and pump body is the decisive factor of deciding the pump quality, and current diaphragm type measuring pump exists the diaphragm leakproofness inadequately more, the diaphragm is receiving impurity and piece and material to pile up and can cause the diaphragm to warp the scheduling problem, lead to the leakproofness decline of diaphragm type measuring pump to break down even.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pump head package assembly of measuring pump to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a pump head assembling structure of a metering pump comprises a pump body, a pump head and a piston pipe, wherein the piston pipe is arranged on the left side of the pump body, a piston cavity is formed in the piston tube, sealing rubber is arranged between the piston tube and the pump body, the sealing rubber is annular, the size of the inner ring is the same as that of the piston cavity, the piston pipe is fixedly connected with the pump body through a first bolt, a pump head is arranged on one side of the piston pipe, which is far away from the pump body, a groove is arranged at the joint of the pump head and the piston pipe, a diaphragm is arranged between the pump head and the piston pipe, the diaphragm is circular, the outermost ring is cylindrical, the diaphragm is clamped in the groove, the pump head is fixedly connected with the piston tube through a second bolt, the pump head upper end is provided with export one-way check valve, the pump head lower extreme is provided with the one-way check valve of entry.

Preferably, six first bolts and six second bolts are uniformly arranged around the piston tube.

Preferably, balls are arranged in the outlet one-way check valve and the inlet one-way check valve, and round holes matched with the balls are formed in the bottoms of the outlet one-way check valve and the inlet one-way check valve.

Preferably, the joint of the piston tube and the pump head with the diaphragm is provided with smooth corners.

Preferably, the diaphragm and the sealing rubber are made of fluorinated rubber.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up sealing rubber between piston tube and the pump body, connect piston tube and the pump body through six first bolt fixed connections that evenly set up, guarantee the leakproofness between piston tube and the pump body, set up the recess at pump head and piston tube opposite face, establish the diaphragm card in the recess, connect piston tube and pump head through six second bolt fixed connections that evenly set up, guarantee the leakproofness between piston tube and the pump head, and press from both sides the diaphragm tightly, set up piston tube and pump head and diaphragm junction as slick and sly turning, prevent that the diaphragm from causing wearing and tearing when working, set up export one-way check valve and entry one-way check valve at pump head upper end and lower extreme, set up ball and round hole in export one-way check valve and entry one-way check valve, guarantee that one end is in encapsulated situation when the pump head works;

2. the utility model discloses a diaphragm and sealing rubber adopt the fluorubber material, have improved the corrosion protection nature and the seal of device, through the piston at the motion of piston intracavity, drive the diaphragm about the space pressure change, make device measurement pump sending liquid.

Drawings

Fig. 1 is a schematic view of the overall structure of a pump head assembly structure of a metering pump according to the present invention;

fig. 2 is the utility model relates to a pump head package assembly local structure schematic diagram of measuring pump.

In the figure: 1. a pump body; 2. a piston tube; 3. a pump head; 4. a piston cavity; 5. sealing rubber; 6. a first bolt; 7. a groove; 8. a diaphragm; 9. a second bolt; 10. an outlet one-way check valve; 11. an inlet one-way check valve; 12. a ball; 13. a circular hole; 14. and rounding the corners.

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 work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a pump head assembly structure for a metering pump, comprising: the utility model provides a pump head package assembly of measuring pump, which comprises a pump body 1, piston pipe 2 and

pump head

3, 1 left side of the pump body is provided with piston pipe 2, piston chamber 4 has been seted up in the piston pipe 2, be provided with sealing rubber 5 between piston pipe 2 and the pump body 1, sealing rubber 5 is ring shape, and the inner ring size is the same with 4 sizes in piston chamber, piston pipe 2 is through 6 fixed connection of first bolt with the pump body 1, piston pipe 2 is kept away from 1 one side of the pump body and is provided with pump head 3, pump head 3 is provided with recess 7 with 2 department of meeting of piston pipe, be provided with diaphragm 8 between pump head 3 and the piston pipe 2, diaphragm 8 is circular, and outermost circle is cylindrical, diaphragm 8 blocks and establishes in recess 7, pump head 3 passes through second bolt 9 fixed connection with

piston pipe

2, 3 upper ends of pump head are provided with export one-way check valve 10.

Six first bolts 6 and six second bolts 9 are uniformly arranged on the periphery of the piston pipe 2;

a round ball 12 is arranged in the outlet one-way check valve 10 and the inlet one-way check valve 11, and a round hole 13 matched with the round ball 12 is arranged at the bottom of the outlet one-way check valve and the inlet one-way check valve;

the junction of the piston tube 2 and the pump head 3 with the diaphragm 8 is provided with rounded corners 14.

The diaphragm 8 and the sealing rubber 5 are made of fluorinated rubber.

The working principle is as follows: the utility model ensures the sealing performance between the piston tube 2 and the pump body 1 by arranging the sealing rubber 5 between the piston tube 2 and the pump body 1, fixedly connecting the piston tube 2 and the pump body 1 by six first bolts 6 which are evenly arranged, arranging a groove 7 on the opposite surface of the pump head 3 and the piston tube 2, arranging a diaphragm 8 in the groove 7, fixedly connecting the piston tube 2 and the pump head 3 by six second bolts 9 which are evenly arranged, ensuring the sealing performance between the piston tube 2 and the pump head 3, clamping the diaphragm 8, preventing the diaphragm 8 from being worn when in work by arranging a smooth corner 14 at the joint of the piston tube 2 and the pump head 3 with the diaphragm 8, arranging an outlet one-way check valve 10 and an inlet one-way check valve 11 at the upper end and the lower end of the pump head 3, arranging a ball 12 and a round hole 13 in the outlet one-way check valve 10 and the inlet one-way check valve 11, ensuring that one end of the pump head 3, the diaphragm 8 and the sealing rubber 5 are made of fluorinated rubber, so that the corrosion resistance and the tightness of the device are improved, and the piston moves in the piston cavity 4 to drive the diaphragm 8 to change the pressure intensity of the left space and the right space, so that the device can meter and pump liquid.

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.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a pump head package assembly of measuring pump, includes the pump body (1), piston pipe (2) and pump head (3), its characterized in that: the pump is characterized in that the piston tube (2) is arranged on the left side of the pump body (1), a piston cavity (4) is formed in the piston tube (2), a sealing rubber (5) is arranged between the piston tube (2) and the pump body (1), the sealing rubber (5) is in a circular ring shape, the size of an inner ring is the same as that of the piston cavity (4), the piston tube (2) is fixedly connected with the pump body (1) through a first bolt (6), a pump head (3) is arranged on one side, away from the pump body (1), of the piston tube (2), a groove (7) is formed in the joint of the pump head (3) and the piston tube (2), a diaphragm (8) is arranged between the pump head (3) and the piston tube (2), the diaphragm (8) is circular, the outermost ring is cylindrical, the diaphragm (8) is clamped in the groove (7), and the piston tube (3) is fixedly connected with the pump body (2) through a second bolt (9), the pump head (3) upper end is provided with export one-way check valve (10), pump head (3) lower extreme is provided with entry one-way check valve (11).

2. A pump head assembling structure of a metering pump according to claim 1, wherein: six first bolts (6) and second bolts (9) are uniformly arranged on the periphery of the piston tube (2).

3. A pump head assembling structure of a metering pump according to claim 1, wherein: a round ball (12) is arranged in the outlet one-way check valve (10) and the inlet one-way check valve (11), and a round hole (13) matched with the round ball (12) is arranged at the bottom.

4. A pump head assembling structure of a metering pump according to claim 1, wherein: the joint of the piston tube (2) and the pump head (3) and the diaphragm (8) is provided with a smooth corner (14).

5. A pump head assembling structure of a metering pump according to claim 1, wherein: the diaphragm (8) and the sealing rubber (5) are made of fluorinated rubber.