CN113685345A

CN113685345A - High-pressure pump structure

Info

Publication number: CN113685345A
Application number: CN202010420815.0A
Authority: CN
Inventors: 潘进南; 吴立维
Original assignee: Haiyong Industrial Co ltd
Current assignee: Haiyong Industrial Co ltd
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2021-11-23

Abstract

A high pressure pump structure comprising: a cylinder body, an inner cylinder body and a hollow piston cylinder body. The cylinder body has a containing space, an inlet and an outlet communicated with the containing space, and a joint part is arranged on the inner wall surface of the cylinder body. The inner cylinder body is internally provided with a first water inlet chamber, one end of the surface of the inner cylinder body is provided with an assembling part, and after the assembling part and the jointing part are assembled, a reciprocating space is formed between the cylinder body and the inner cylinder body. One end of the hollow piston cylinder body is an opening end, the other end of the hollow piston cylinder body is a closed surface, a second water inlet chamber is arranged in the hollow piston cylinder body, the closed end is provided with a pivoting part, the opening end of the hollow piston cylinder body enters the reciprocating space, and the outer surface of the hollow piston cylinder body is tightly arranged on the inner wall surface of the cylinder body, so that the hollow piston cylinder body is sleeved outside the inner cylinder body.

Description

High-pressure pump structure

Technical Field

The invention relates to a high-pressure pump, in particular to a high-pressure pump structure capable of generating multiple water output.

Background

As is known, current agricultural or irrigation vehicle sprayers are comprised of a motor, a drive mechanism and a piston mechanism. When the motor is started, the motor drives the crankshaft of the driving mechanism to rotate, so that the crankshaft continuously drives the connecting rods to sequentially push the piston mechanism to reciprocate, and the piston mechanism sucks external water and then sends the water out in a high-pressure mode, so that the sprayer can spray crops or clean vehicles.

The piston structure of the traditional spraying machine is similar to that of an automobile, and due to the fact that the structure is large in size and the piston structure is not designed in a hollow shape, the amount of water sucked in during reciprocating motion is small, the amount of water sprayed out is small, and therefore inconvenience is brought to farming or vehicle washing.

Disclosure of Invention

Therefore, the main objective of the present invention is to provide a new high pressure pump structure, in which the traditional piston actuation mode is changed to a piston fixed mode, and the piston cylinder actuation mode is designed, so that the volume of the piston structure and the cylinder can be reduced, the structure is simple and easy to manufacture, and the water inlet amount and the water outlet amount are increased.

In order to achieve the above object, the present invention provides a high-pressure pump structure including: a cylinder body, an inner cylinder body and a hollow piston cylinder body. The cylinder body has one closed end and one open end, and has inside one holding space, one inlet and one outlet communicated to the holding space, and one joint part in the inner wall of the cylinder body. The inner cylinder body is a hollow penetrating tubular body, a first water inlet chamber is arranged in the inner cylinder body, one end of the surface of the inner cylinder body is provided with an assembling part, the assembling part is assembled with the connecting part, and after the inner cylinder body is assembled with the cylinder body, a reciprocating space is formed between the inner wall surface of the cylinder body and the outer surface of the inner cylinder body. The hollow piston cylinder body has one open end and one closed end with one second water inlet chamber and one pivoting part, and is set in the closed end.

In an embodiment of the present invention, a one-way check valve is disposed on each of the inlet and the outlet.

In an embodiment of the invention, the engaging portion is threaded.

In an embodiment of the present invention, the assembly portion is threaded.

In one embodiment of the present invention, the inlet and the outlet are disposed adjacent to the closed end.

In one embodiment of the present invention, the position of the joint portion is disposed on the inner wall surface of the cylinder block adjacent to the inlet and the outlet.

In an embodiment of the present invention, the pivoting portion of the hollow piston cylinder is pivotally connected to a connecting rod.

In one embodiment of the present invention, the connecting rod is coupled to a crankshaft of the high pressure pump.

In an embodiment of the present invention, the inner cylinder and the hollow piston cylinder are made of metal or ceramic.

The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.

Drawings

FIG. 1 is an exploded view of the high pressure pump of the present invention

FIG. 2 is a perspective view of the high pressure pump of the present invention;

FIG. 3 and FIG. 2 are schematic sectional views

FIG. 4 shows the structure of the high pressure pump according to the present invention being pulled

Fig. 5 is a schematic diagram showing the piston structure of the high pressure pump structure of the present invention being pushed back.

Wherein the reference numerals

Piston structure 10

Cylinder block 1

Closed end 11

Open end 12

Accommodating space 13

Inlet 14

An outlet 15

Joint 16

Inner cylinder body 2

First inlet chamber 21

Assembling part 22

Hollow piston cylinder 3

Open end 31

Closing surface 32

Second inlet chamber 33

Pivoting part 34

Connecting rod 4

One-way check valve 20

Crankshaft 30

Detailed Description

The technical contents and the detailed description of the present invention are described below with reference to the accompanying drawings:

referring to fig. 1, 2 and 3, the high pressure pump of the present invention is shown in exploded, assembled and cross-sectional views. In the high pressure pump configuration of the invention, the piston structure 10 comprises a cylinder block 1, an inner cylinder block 2 and a hollow piston cylinder block 3. Wherein, the piston structure 10 is driven by a pump of a high pressure pump (not shown) to reciprocate, so as to generate high pressure water output operation.

The cylinder body 1 is installed on the high pressure pump, one end of the cylinder body 1 is a closed end 11, the other end is an open end 12, and the cylinder body has an accommodating space 13 inside, an inlet 14 and an outlet 15 are provided near the closed end 11 and communicated with the accommodating space 13, and a one-way check valve (not shown) is respectively provided on the inlet 14 and the outlet 15, the one-way check valve prevents water from flowing out from the inlet 14 after water enters from the inlet 14, and water cannot flow in from the outlet 15 after relative water is sent out from the outlet 15. Further, a joint portion 16 is projected from the inner wall surface of the cylinder block 1 near the inlet 14 and the outlet 15, and the joint portion 16 is engaged with the inner cylinder block 2.

The inner cylinder 2 is a hollow tubular body, and has a first water inlet chamber 21 therein, and a threaded connection portion 22 is provided at one end of the surface of the inner cylinder 2, and after the connection portion 22 is connected to the connection portion 16, a reciprocating space is formed between the inner wall surface of the cylinder body 1 and the outer surface of the inner cylinder 2, and the reciprocating space provides a reciprocating displacement of the hollow piston cylinder 3 between the inner wall surface of the cylinder body 1 and the outer surface of the inner cylinder 2. In this figure, the inner cylinder 2 is made of a metal material or a ceramic material.

The hollow piston cylinder 3 has an open end 31 at one end and a closed surface 32 at the other end, and a second inlet chamber 33 therein, and the closed surface 32 is provided with a pivot portion 34, and the pivot portion 34 is pivotally connected to a connecting rod 4. When the hollow piston cylinder 3 is disposed, the hollow piston cylinder 3 enters the reciprocating space from the opening end 31, and the outer surface of the hollow piston cylinder 3 is closely disposed to the inner wall surface of the cylinder block 1, and the hollow piston cylinder 3 is fitted to the outside of the inner cylinder 2. When the connecting rod 4 is driven by the crankshaft 30, the connecting rod 4 drives the hollow piston cylinder 3 to reciprocate in the reciprocating space. In this figure, the hollow piston cylinder 3 is made of a metal material or a ceramic material.

Referring to fig. 4 and 5, the piston structure of the high pressure pump of the present invention is pulled and pushed back to operate schematically. As shown in the drawings, when the piston structure 10 of the present invention is used, a one-way check valve 20 is disposed at each of the inlet 14 and the outlet 15 when the piston structure 10 is installed in a high pressure pump (not shown) (this is prior art and not described herein). After the connecting rod 4 is connected to a crankshaft (not shown) of a high pressure pump (not shown), when a motor (not shown) of the high pressure pump rotates, the crankshaft is driven to rotate, so that the connecting rod 4 drives the hollow piston cylinder 3 to reciprocate in the reciprocating space.

When the hollow piston cylinder 3 is pulled by the connecting rod 4 to move in the opposite direction to the inner cylinder 2, suction force is generated to introduce external water into the cylinder body 1 through the one-way check valve 20 of the inlet 14, and after the hollow piston cylinder 3 is pulled open, the water inflow amount is increased by the first water inlet chamber 21 of the inner cylinder 2 and the second water inlet chamber 33 of the hollow piston cylinder 3.

When the hollow piston cylinder 3 is pushed toward the inner cylinder 2 by the connecting rod 4, the hollow piston cylinder 3 pushes the water in the second water inlet chamber 33 and the first water inlet chamber 21 to be output from the one-way check valve 20 of the outlet 15, and the water is atomized or sprayed in a water column manner from the water discharge chamber of the high-pressure pump.

Therefore, when the hollow piston cylinder 3 is driven to reciprocate in the reciprocating space by the high-speed reciprocation of the connecting rod 4, a high-pressure pump for outputting a large amount of water at a high pressure is obtained.

Because the traditional piston actuating mode is changed into the mode that the piston is fixed and the piston cylinder is actuated, the piston cylinder is designed in the actuating mode, the piston structure and the volume of the cylinder can be reduced, the structure is simple and easy to manufacture, and the water inlet quantity and the water outlet quantity are increased.

Further, when the invention is applied to a high-pressure pump, water can be delivered to a far end or a high place besides atomization or water column type spraying.

The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A high-pressure pump structure, comprising:

a cylinder body with one closed end and one open end, a containing space in the cylinder body, an inlet and an outlet on the cylinder body, and a joint part on the inner wall of the cylinder body

An inner cylinder body which is a hollow tubular body and is internally provided with a first water inlet chamber, one end of the surface of the inner cylinder body is provided with an assembling part, the assembling part and the assembling part are assembled, after the inner cylinder body and the cylinder body are assembled, a reciprocating space is formed between the inner wall surface of the cylinder body and the outer surface of the inner cylinder body

The hollow piston cylinder body is provided with an opening end at one end and a closed surface at the other end, a second water inlet chamber is arranged in the hollow piston cylinder body, a pivoting part is arranged on the closed end, and the hollow piston cylinder body enters the reciprocating space from the opening end and is tightly configured with the outer surface of the hollow piston cylinder body and the inner wall surface of the cylinder body, so that the hollow piston cylinder body is sleeved outside the inner cylinder body.

2. The high pressure pump structure as claimed in claim 1, wherein a check valve is provided at each of the inlet and the outlet.

3. The high-pressure pump structure as claimed in claim 1, wherein the engaging portion is threaded.

4. The high pressure pump structure as set forth in claim 1, wherein the combining portion is screw-shaped.

5. The high pressure pump structure of claim 1, wherein the inlet and the outlet are positioned adjacent the closed end.

6. The high pressure pump structure of claim 1, wherein the position of the joint portion is provided on an inner wall surface of the cylinder block adjacent to the inlet and the outlet.

7. The high-pressure pump structure as claimed in claim 1, wherein the pivoting portion of the hollow piston cylinder is pivotally connected to a connecting rod.

8. The high pressure pump structure as claimed in claim 7, wherein the connecting rod is assembled with a crankshaft of the high pressure pump.

9. The high-pressure pump structure as claimed in claim 1, wherein the inner cylinder and the hollow piston cylinder are made of metal or ceramic.