CN211370646U

CN211370646U - Piston inflating pump

Info

Publication number: CN211370646U
Application number: CN201921961103.9U
Authority: CN
Inventors: 刘靖云; 刘昊
Original assignee: Guangdong Bruce Intelligent Technology Co ltd
Current assignee: Guangdong Bruce Intelligent Technology Co ltd
Priority date: 2019-11-13
Filing date: 2019-11-13
Publication date: 2020-08-28
Anticipated expiration: 2029-11-13

Abstract

The utility model relates to the technical field of inflating pumps, in particular to a piston inflating pump, which comprises a support, two air pump components respectively arranged at two ends of the support and a driving device arranged on the support, wherein each air pump component comprises an air pump seat connected with the support and an air transmission seat connected with the air pump seat, the air pump seat is provided with a cylinder body and a piston, the cylinder body is provided with an air inlet and an air outlet, and the air transmission seat is respectively provided with an air inlet cavity and an air outlet cavity; a one-way air inlet valve is arranged between the air inlet cavity and the air inlet, and a one-way air outlet valve is arranged between the air outlet cavity and the air outlet; the driving device is respectively in driving connection with the two pistons of the two air pump assemblies at the two ends of the support and is used for driving the pistons to do reciprocating motion in the cylinder body. The utility model discloses a compact structure, the operation is reliable and stable, through two air pump assembly simultaneous workings of drive arrangement drive, and then reduces the work energy consumption of breast pump effectively, improves the work efficiency of breast pump to reduce the manufacturing cost of product, convenience of customers uses.

Description

Piston inflating pump

Technical Field

The utility model belongs to the technical field of inflation pump technique and specifically relates to indicate a piston inflation pump.

Background

An air pump is a device for moving liquid, gas or special fluid medium, i.e. a machine working on fluid. It transfers the mechanical energy of the prime mover or other external energy to the liquid, causing the liquid energy to increase. The pump is mainly used for conveying liquid such as water, oil, acid-base liquid, emulsion, suspension emulsion and liquid metal, and can also be used for conveying liquid, gas mixture and liquid containing suspended solid.

However, the existing breast pumps are all provided with one pumping pump, and one driving device is adopted for one pumping pump, however, in actual use, one breast pump cannot meet the use requirements of customers, so that customers need to purchase a plurality of pumping pumps when purchasing a plurality of breast pumps, which causes the manufacturing and consumption costs to be increased; moreover, when two breast pumps are in use, the customer needs to operate two inflation pumps at the same time, which is complicated and inconvenient to operate. This drawback is quite evident and an effective solution is needed.

Disclosure of Invention

An object of the utility model is to provide a piston inflation pump to prior art's not enough, its simple structure is compact, can realize two at least air pump assembly's simultaneous workings through drive arrangement, reduces the manufacturing cost of product from this, improves the work efficiency of product, and convenience of customers uses.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a pair of piston inflating pump, it includes the support, sets up two air pump assembly and the drive arrangement of installing on the support at the both ends of support respectively, air pump assembly includes the air pump seat of being connected with the support and the air transmission seat of being connected with the air pump seat, the air pump seat is provided with the cylinder body of holding in the support and slides the piston that sets up in the cylinder body, one side that the piston was kept away from to the cylinder body is provided with air inlet and gas outlet respectively, the air transmission seat is provided with the chamber of admitting air that communicates with the air inlet and the chamber of giving vent to anger that communicates with the gas outlet respectively, the chamber of admitting air and the chamber of giving vent to ange; a one-way air inlet valve is arranged between the air inlet cavity and the air inlet, and a one-way air outlet valve is arranged between the air outlet cavity and the air outlet; the driving device is respectively in driving connection with the two pistons of the two air pump assemblies at the two ends of the support, and the driving device is used for driving the pistons to reciprocate in the cylinder body.

The driving device comprises an eccentric block, a rotating shaft, a first shaft sleeve, a second shaft sleeve, a first connecting rod, a second connecting rod and a driving motor, wherein the eccentric block is rotatably arranged in the support and positioned between the two air pump assemblies; one end of the first connecting rod, which is far away from the rotating shaft, is connected with the piston of one of the air pump seats, and one end of the second connecting rod, which is far away from the rotating shaft, is connected with the piston of the other air pump seat.

An elastic block is arranged between the air pump seat and the air transmission seat, the elastic block is respectively provided with a first open slot and a second open slot, a slot wall of the first open slot is convexly provided with a first lug as a one-way air inlet valve, and a slot wall of the second open slot is convexly provided with a second lug as a one-way air outlet valve; the first lug is used for covering the opening end of the air inlet cavity communicated with the air inlet, and the second lug is used for covering the opening end of the air outlet cavity communicated with the air outlet cavity.

Furthermore, one side of the air inlet close to the air inlet cavity is provided with a slope which inclines downwards.

The gas transmission seat is provided with a gas inlet pipe communicated with the gas inlet cavity and a gas outlet pipe communicated with the gas outlet cavity.

The number of the support seats is two, the driving motor is a double-shaft driving motor, and the two support seats are respectively arranged at two ends of the double-shaft driving motor; an eccentric block, a rotating shaft connected with the eccentric block, a first shaft sleeve and a second shaft sleeve sleeved on the rotating shaft, a first connecting rod connected with the first shaft sleeve and a second connecting rod connected with the second shaft sleeve are arranged in the two supports; two eccentric blocks in the two supports are respectively connected with two output shafts of the double-shaft driving motor.

The utility model has the advantages that:

the utility model provides a pair of piston inflating pump, in practical application, the air outlet cavity of two gas transmission seats at the both ends of support respectively with two external breast pumps intercommunication, two pistons in drive arrangement drive support respectively do reciprocating motion in respective cylinder body simultaneously, make two air pump assembly on the support can inflate two external breast pumps simultaneously from this, provide atmospheric pressure for the breast pump. When the driving device drives the piston to move to the top of the cylinder body (namely the piston moves close to the gas transmission seat), the one-way gas inlet valve closes the gas inlet cavity to stop gas from entering the cylinder body, the gas in the cylinder body rushes off the one-way gas outlet valve through the gas outlet to open the gas outlet, and the gas enters the gas outlet cavity of the gas transmission seat from the gas outlet and is discharged to the outside; when the driving device drives the piston to move to the bottom of the cylinder body (namely the piston moves away from the gas transmission seat), the one-way gas outlet valve closes the gas outlet to stop gas in the cylinder body from being discharged from the gas outlet, the one-way gas inlet valve opens the gas inlet cavity, and gas in the gas inlet cavity enters the cylinder body through the gas inlet to be stored, so that preparation is made for next gas discharge; therefore, the whole inflating process is completed once the piston returns. The utility model discloses a compact structure, the operation is reliable and stable, through two air pump assembly simultaneous workings of drive arrangement drive, and then reduces the work energy consumption of breast pump effectively, improves the work efficiency of breast pump to reduce the manufacturing cost of product, convenience of customers uses.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is a partial cross-sectional view of the present invention;

fig. 4 is a schematic structural diagram of the elastic block of the present invention.

Description of the reference numerals

1. A support; 2. an air pump assembly; 3. a drive device; 21. an air pump base; 22. a gas transmission seat; 23. an elastic block; 211. a cylinder body; 212. a piston; 213. an air inlet; 214. a bevel; 215. an air outlet; 221. an air inlet cavity; 222. an air outlet cavity; 223. an air inlet pipe; 224. an air outlet pipe; 231. a first open slot; 232. a second open slot; 233. a first lug; 234. a second lug; 31. an eccentric block; 32. a rotating shaft; 33. a first bushing; 34. a second shaft sleeve; 35. a first link; 36. a second link; 37. the motor is driven.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention. The present invention will be described in detail with reference to fig. 1 to 4.

Example one

The utility model provides a piston inflating pump, it includes support 1, sets up two air pump assembly 2 at support 1's both ends respectively and installs drive arrangement 3 on support 1, air pump assembly 2 includes the air pump seat 21 of being connected with support 1 and the gas transmission seat 22 of being connected with air pump seat 21, air pump seat 21 is provided with the cylinder body 211 of holding in support 1 and slides and sets up the piston 212 in cylinder body 211, one side that piston 212 was kept away from to cylinder body 211 is provided with air inlet 213 and gas outlet 215 respectively, gas transmission seat 22 is provided with the chamber 221 of admitting air that communicates with air inlet 213 and the chamber 222 of giving vent to anger that communicates with gas outlet 215 respectively, chamber 221 of admitting air and chamber 222 of giving vent to anger communicate with the external world; a one-way air inlet valve is arranged between the air inlet cavity 221 and the air inlet 213, and a one-way air outlet valve is arranged between the air outlet cavity 222 and the air outlet 215; the driving device 3 is respectively connected with two pistons 212 of the two air pump assemblies 2 at two ends of the support 1 in a driving manner, and the driving device 3 is used for driving the pistons 212 to reciprocate in the cylinder body 211.

In practical application, the air outlet cavities 222 of the two air delivery bases 22 at the two ends of the support 1 are respectively communicated with the two external breast pumps, and the driving device 3 respectively drives the two pistons 212 in the support 1 to reciprocate in the respective cylinder 211 at the same time, so that the two air pump assemblies 2 on the support 1 can pump air to the two external breast pumps at the same time to provide air pressure for the breast pumps. When the driving device 3 drives the piston 212 to move to the top of the cylinder 211 (i.e. the piston 212 moves in the direction close to the gas delivery seat 22), the one-way gas inlet valve closes the gas inlet cavity 221 to stop the gas from entering the cylinder 211, the gas in the cylinder 211 pushes the one-way gas outlet valve through the gas outlet 215 to open the gas outlet 215, and the gas enters the gas outlet cavity 222 of the gas delivery seat 22 from the gas outlet 215 and is discharged to the outside; when the driving device 3 drives the piston 212 to move to the bottom of the cylinder 211 (i.e. the piston 212 moves away from the gas transmission seat 22), the one-way gas outlet valve closes the gas outlet 215 at this time to prevent outside gas from entering the cylinder 211 through the gas outlet 215, negative pressure is formed in the cylinder 211 at this time, the one-way gas inlet valve opens the gas inlet cavity 221 under the action of the negative pressure, and gas in the gas inlet cavity 221 enters the cylinder 211 through the gas inlet 213 for gas storage to prepare for next gas exhaust; thus, the entire pumping process is completed once for all by piston 212. The utility model discloses a compact structure, the operation is reliable and stable, drives two air pump assembly 2 simultaneous workings through drive arrangement 3, and then reduces the work energy consumption of breast pump effectively, improves the work efficiency of breast pump to reduce the manufacturing cost of product, convenience of customers uses.

In the present technical solution, the driving device 3 includes an eccentric block 31 rotatably disposed in the support 1 and located between the two air pump assemblies 2, a rotating shaft 32 connected to the eccentric block 31, a first shaft sleeve 33 and a second shaft sleeve 34 sleeved on the rotating shaft 32, a first connecting rod 35 connected to the first shaft sleeve 33, a second connecting rod 36 connected to the second shaft sleeve 34, and a driving motor 37 for driving the eccentric block 31 to rotate, wherein the rotating shaft 32 is located on one side of a rotation axis of the eccentric block 31 (i.e., a central axis of the rotating shaft 32 is not collinear with the rotation axis of the eccentric block 31); the end of the first connecting rod 35 remote from the rotating shaft 32 is connected to the piston 212 in one of the air pump seats 21, and the end of the second connecting rod 36 remote from the rotating shaft 32 is connected to the piston 212 in the other air pump seat 21.

In practical application, the driving motor 37 drives the eccentric block 31 to rotate, the rotating eccentric block 31 drives the rotating shaft 32 to eccentrically rotate, the eccentrically rotating shaft 32 respectively drives the first connecting rod 35 and the second connecting rod 36 to alternately move up and down, and the up-and-down moving first connecting rod 35 drives the piston 212 to vertically reciprocate in the cylinder body 211, so that one of the air pump assemblies 2 on the support 1 can realize the function of inflating air; similarly, the second connecting rod 36 moving up and down drives the piston 212 of the air pump assembly 2 to move up and down in the cylinder 211, so that the other air pump assembly 2 on the support 1 also performs the function of pumping air. The driving device 3 has simple and compact structural design and stable and reliable operation.

In the present technical solution, an elastic block 23 is disposed between the air pump seat 21 and the air delivery seat 22, the elastic block 23 is respectively provided with a first opening groove 231 and a second opening groove 232, a groove wall of the first opening groove 231 is convexly provided with a first protruding lug 233 as a one-way air inlet valve, and a groove wall of the second opening groove 232 is convexly provided with a second protruding lug 234 as a one-way air outlet valve; the first lug 233 is used for covering the open end of the air inlet chamber 221 communicating with the air inlet 213, and the second lug 234 is used for covering the open end of the air outlet 215 communicating with the air outlet chamber 222. Specifically, the elastic block 23 is an elastic silica gel block.

In practical application, when the piston 212 moves close to the air delivery seat 22, the air in the cylinder 211 pushes the first lug 233 to abut against the air delivery seat 22 and cover the opening of the air inlet cavity 221, so as to close the air inlet cavity 221, and the air in the cylinder 211 pushes the second lug 234 away from the air outlet 215, so that the second lug 234 tilts away from the air outlet 215 to open the air outlet 215, and at this time, the air in the cylinder 211 enters the air outlet cavity 222 from the air outlet 215 and is then delivered to the external breast pump through the air outlet cavity 222; when the piston 212 moves away from the gas delivery seat 22, a negative pressure is formed in the cylinder body 211, at this time, the second lug 234 clings to the air pump seat 21 and covers the gas outlet 215 to seal the gas outlet 215, and simultaneously, the first lug 233 tilts away from the gas inlet cavity 221 to open under the action of the negative pressure, so that the gas inlet cavity 221 is communicated with the gas inlet 213, and at this time, external gas can enter the cylinder body 211 to be stored. Preferably, a side of the air inlet 213 close to the air inlet cavity 221 is provided with a slope 214 that inclines downward, when the second lug 234 tilts to a certain angle, the second lug 234 collides with the slope 214 and stops the second lug 234, and the slope of the slope 214 determines the opening range of the second lug 234, so as to limit the size of the air inlet 213, thereby controlling the air inlet speed and the air inlet amount of the cylinder 211. This elastic block 23's structural design is simple ingenious, utilizes the material characteristic of elasticity silica gel alright realize the effect of valve, and its low in manufacturing cost, long service life, and it is convenient to install.

In this embodiment, the air delivery seat 22 is provided with an air inlet pipe 223 communicated with the air inlet cavity 221 and an air outlet pipe 224 communicated with the air outlet cavity 222. The air inlet pipe 223 and the air outlet pipe 224 are designed to facilitate the connection of the air delivery seat 22 with the external breast pump.

Example two

The present embodiment is different from the first embodiment in that: the number of the support seats 1 is two, the driving motor 37 is a double-shaft driving motor 37, and the two support seats 1 are respectively arranged at two ends of the double-shaft driving motor 37; an eccentric block 31, a rotating shaft 32 connected with the eccentric block 31, a first shaft sleeve 33 and a second shaft sleeve 34 sleeved on the rotating shaft 32, a first connecting rod 35 connected with the first shaft sleeve 33 and a second connecting rod 36 connected with the second shaft sleeve 34 are arranged in each of the two supports 1; two eccentric blocks 31 in the two supports 1 are respectively connected with two output shafts of a double-shaft driving motor 37. Specifically, output shafts are respectively provided at both ends of the biaxial drive motor 37, and the two output shafts are coaxially provided.

In practical application, two output shafts of the two-shaft driving motor 37 are respectively connected with two eccentric blocks 31 in two supports 1. During operation, two output shafts of the dual-shaft driving motor 37 rotate to respectively drive the eccentric blocks 31 in the two supports 1 to rotate, the rotating eccentric blocks 31 drive the rotating shaft 32 to rotate eccentrically, and the rotating shaft 32 rotating eccentrically drives the first connecting rod 35 and the second connecting rod 36 to drive the two pistons 212 in one support 1 to reciprocate in the cylinder body 211, so that the two air pump assemblies 2 on one support 1 work simultaneously; from this, two output shafts of biax driving motor 37 alright drive four air pump assembly 2 work on two supports 1 simultaneously, thereby make the utility model discloses can provide atmospheric pressure for four breast pumps simultaneously, reduce the work energy consumption from this widely, improve work efficiency.

Other features of the second embodiment are the same as those of the first embodiment, and are not described herein again.

The above description is only for the preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention is disclosed in the preferred embodiment, it is not limited to the above description, and any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, but all the technical solutions of the present invention are within the scope of the present invention.

Claims

1. A piston inflation pump which is characterized in that: the air pump assembly comprises an air pump seat connected with the support and an air delivery seat connected with the air pump seat, the air pump seat is provided with a cylinder body accommodated in the support and a piston slidably arranged in the cylinder body, one side of the cylinder body, away from the piston, is provided with an air inlet and an air outlet respectively, the air delivery seat is provided with an air inlet cavity communicated with the air inlet and an air outlet cavity communicated with the air outlet respectively, and the air inlet cavity and the air outlet cavity are both communicated with the outside; a one-way air inlet valve is arranged between the air inlet cavity and the air inlet, and a one-way air outlet valve is arranged between the air outlet cavity and the air outlet; the driving device is respectively in driving connection with the two pistons of the two air pump assemblies at the two ends of the support, and the driving device is used for driving the pistons to reciprocate in the cylinder body.

2. A piston inflation pump as claimed in claim 1, wherein: the driving device comprises an eccentric block which is rotatably arranged in the support and positioned between the two air pump assemblies, a rotating shaft connected with the eccentric block, a first shaft sleeve and a second shaft sleeve which are sleeved on the rotating shaft, a first connecting rod connected with the first shaft sleeve, a second connecting rod connected with the second shaft sleeve and a driving motor used for driving the eccentric block to rotate, wherein the rotating shaft is positioned on one side of the rotating axis of the eccentric block; one end of the first connecting rod, which is far away from the rotating shaft, is connected with the piston in one of the air pump seats, and one end of the second connecting rod, which is far away from the rotating shaft, is connected with the piston in the other air pump seat.

3. A piston inflation pump as claimed in claim 1, wherein: an elastic block is arranged between the air pump seat and the air transmission seat, the elastic block is respectively provided with a first open slot and a second open slot, the slot wall of the first open slot is convexly provided with a first lug as a one-way air inlet valve, and the slot wall of the second open slot is convexly provided with a second lug as a one-way air outlet valve; the first lug is used for covering the opening end of the air inlet cavity communicated with the air inlet, and the second lug is used for covering the opening end of the air outlet cavity communicated with the air outlet cavity.

4. A piston inflation pump according to claim 3, wherein: and one side of the air inlet close to the air inlet cavity is provided with a downward inclined plane.

5. A piston inflation pump as claimed in claim 1, wherein: the gas transmission seat is provided with a gas inlet pipe communicated with the gas inlet cavity and a gas outlet pipe communicated with the gas outlet cavity.

6. A piston inflation pump as claimed in claim 2, wherein: the number of the support seats is two, the driving motor is a double-shaft driving motor, and the two support seats are respectively arranged at two ends of the double-shaft driving motor; an eccentric block, a rotating shaft connected with the eccentric block, a first shaft sleeve and a second shaft sleeve sleeved on the rotating shaft, a first connecting rod connected with the first shaft sleeve and a second connecting rod connected with the second shaft sleeve are arranged in the two supports; two eccentric blocks in the two supports are respectively connected with two output shafts of the double-shaft driving motor.