CN210371048U

CN210371048U - Improved structure of pneumatic liquid pump

Info

Publication number: CN210371048U
Application number: CN201921386491.2U
Authority: CN
Inventors: 陈美阁
Original assignee: Hangzhou Siyou Machinery Technology Co ltd
Current assignee: Hangzhou Siyou Machinery Technology Co ltd
Priority date: 2019-08-21
Filing date: 2019-08-21
Publication date: 2020-04-21
Anticipated expiration: 2029-08-21

Abstract

The utility model belongs to the technical field of hydraulic equipment, especially, relate to a pneumatic liquid pump improves structure. The upper end of the pump seat is provided with a reciprocating driving air chamber, the interior of the reciprocating driving air chamber is hermetically clamped with a driving piston, the lower end of the driving piston is connected with a small driven piston, the small driven piston penetrates through a preformed hole in the middle of the pump seat and extends into a pressurized oil cavity, the small driven piston is movably inserted in the middle of a large driven piston in the pressurized oil cavity, and the middle of the small driven piston is movably clamped with the large driven piston through a transversely arranged elastic limiting clamping piece; and a compression spring is clamped at the outer side of the middle through hole of the large driven piston, and the upper end of the compression spring is clamped in a groove at the upper end of the pressurized oil cavity. It drives major diameter slave piston through minor diameter slave piston and moves together, promotes the oil mass of a reciprocating motion process output, shortens operating time to original half, has promoted oil pump work efficiency greatly.

Description

Improved structure of pneumatic liquid pump

Technical Field

The utility model belongs to the technical field of hydraulic equipment, especially, relate to a pneumatic liquid pump improves structure.

Background

The pneumatic hydraulic pump converts lower air pressure into high-pressure oil, namely, the low air pressure at the large-area piston end is utilized to generate high hydraulic pressure at the small-area piston end. The hydraulic anchor rod tension device can replace a manual or electric hydraulic pump to be matched with an anchor cable tension machine, an anchor withdrawing machine, an anchor rod tension meter or other hydraulic tools for use. However, in order to ensure high pressure output, because the diameter of the driving piston is far greater than that of the driven piston, the volume of output high-pressure oil is small each time the driving piston reciprocates, and therefore the high-pressure oil output requirement can be met only by reciprocating for many times, and generally the process takes 8-10 s; greatly affecting the working efficiency.

SUMMERY OF THE UTILITY MODEL

Aiming at solving the problems of the defects and the shortcomings of the prior art; an object of the utility model is to provide a simple structure, reasonable in design, convenient to use's pneumatic liquid pump improves the structure, and it drives major diameter driven piston through minor diameter driven piston and moves together, promotes the oil mass of a reciprocating motion process output, shortens operating time to original half, has promoted oil pump work efficiency greatly.

In order to achieve the above object, the utility model adopts the following technical scheme: the pneumatic oil pump comprises a pump seat, a reciprocating type driving air chamber, a pressurized oil chamber, a pneumatic reversing valve, a driving piston, a small driven piston, a large driven piston, a compression spring, an elastic limiting clamping piece, an oil inlet one-way valve and an oil outlet one-way valve; the upper end of the pump seat is provided with a reciprocating driving air chamber, the interior of the reciprocating driving air chamber is hermetically clamped with a driving piston, and the lower end of the pump seat is provided with a pressurized oil cavity; the upper end of the reciprocating type driving air chamber is provided with a pneumatic reversing valve which is respectively connected to the upper end and the lower end of the reciprocating type driving air chamber through air conveying pipes; the lower end of the driving piston is connected with a small driven piston, the small driven piston penetrates through a preformed hole in the middle of the pump base and extends into the pressurized oil cavity, and is movably inserted in the middle of a large driven piston in the pressurized oil cavity, and the middle of the small driven piston is movably clamped with the large driven piston through a transversely arranged elastic limiting clamping piece; and a compression spring is clamped at the outer side of the middle through hole of the large driven piston, and the upper end of the compression spring is clamped in a groove at the upper end of the pressurized oil cavity.

Preferably, the elastic limit fastener consists of a strong spring and limit steel balls, and the limit steel balls are respectively fixed at the left end and the right end of the strong spring.

Preferably, the lower end of the pressurized oil cavity is connected with an oil inlet one-way valve, and one side of the bottom of the pressurized oil cavity is connected with an oil outlet one-way valve outside the pump seat through a delivery pipe.

Preferably, the lower end of the middle of the small driven piston is sleeved with a sealing rubber ring to form sealing with the middle penetration hole of the large driven piston.

Preferably, the outer side of the lower end of the large driven piston is sleeved with a sealing ring to form sealing with the inner wall of the pressurized oil cavity.

After the structure is adopted, the utility model discloses beneficial effect does: the utility model discloses an improved structure of a pneumatic liquid pump, which drives a large-diameter driven piston to move together through a small-diameter driven piston to promote the oil output in the process of one-time reciprocating motion, after the pressure of an oil cavity is promoted, the large-diameter driven piston stops moving, the small-diameter driven piston continues to work, and the oil pressure output of high pressure is ensured; the working time is shortened from the original 8-10s to 3-5s, and the working efficiency of the oil pump is greatly improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention is described in detail by the following specific embodiments and the accompanying drawings.

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a partially enlarged schematic view of the present invention.

Description of reference numerals: the oil-gas separating device comprises a pump base 1, a reciprocating type driving air chamber 2, a pressurized oil cavity 3, a pneumatic reversing valve 4, a driving piston 5, a small driven piston 6, a large driven piston 7, a compression spring 8, an elastic limiting clamping piece 9, an oil inlet one-way valve 10 and an oil outlet one-way valve 11.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described below with reference to specific embodiments shown in the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

It should also be noted that, in order to avoid obscuring the invention with unnecessary details, only the structures and/or process steps that are closely related to the solution according to the invention are shown in the drawings, while other details that are not relevant to the invention are omitted.

Referring to fig. 1 and 2, the following technical solutions are adopted in the present embodiment: the oil-gas pump comprises a pump seat 1, a reciprocating driving air chamber 2, a pressurized oil cavity 3, a pneumatic reversing valve 4, a driving piston 5, a small driven piston 6, a large driven piston 7, a compression spring 8, an elastic limiting clamping piece 9, an oil inlet one-way valve 10 and an oil outlet one-way valve 11; the upper end of the pump seat 1 is provided with a reciprocating driving air chamber 2, the interior of the reciprocating driving air chamber 2 is hermetically clamped with a driving piston 5, and the lower end of the pump seat 1 is provided with a pressurized oil cavity 3; the upper end of the reciprocating type driving air chamber 2 is provided with a pneumatic reversing valve 4, and the pneumatic reversing valve 4 is respectively connected to the upper end and the lower end of the reciprocating type driving air chamber 2 through air conveying pipes; the lower end of the driving piston 5 is connected with a small driven piston 6, the small driven piston 6 penetrates through a preformed hole in the middle of the pump base 1 and extends into the pressurized oil cavity 3, and is movably inserted in the middle of a large driven piston 7 in the pressurized oil cavity 3, and the middle of the small driven piston 6 is movably clamped with the large driven piston 7 through a transversely arranged elastic limiting clamping piece 9; and the outer side of the middle through hole of the large driven piston 7 is clamped with a compression spring 8, and the upper end of the compression spring 8 is clamped in a groove at the upper end of the pressurizing oil cavity 3.

The elastic limiting clamping piece 9 consists of a strong spring 91 and limiting steel balls 92, and the limiting steel balls 92 are respectively fixed at the left end and the right end of the strong spring 91; the lower end of the pressurized oil cavity 3 is connected with an oil inlet one-way valve 10, and one side of the bottom of the pressurized oil cavity 3 is connected with an oil outlet one-way valve 11 on the outer side of the pump base 1 through a delivery pipe; the lower end of the middle of the small driven piston 6 is sleeved with a sealing rubber ring 93 which forms sealing with the middle penetration hole of the large driven piston 7; and a sealing ring is sleeved on the outer side of the lower end of the large driven piston 7 to form sealing with the inner wall of the pressurized oil cavity 3.

The working principle of the specific embodiment is as follows: when the driving piston 5 reciprocates up and down, the small driven piston 6 is driven to move up and down, the large driven piston 7 is clamped on the small driven piston 6 under the action of the spring force of the limiting steel balls and moves up and down along with the small driven piston, and the large driven piston 7 has a larger diameter, reciprocates once and has larger volume change, so that the oil quantity of hydraulic oil entering an oil cavity from an oil tank is greatly improved by reciprocating once, and the output flow of the oil pump in unit time is improved; along with the pressure rise in the oil cavity, big driven piston 7 has overcome the spring force of spacing steel ball under the oil pressure effect, upwards lifting, and at this moment, little driven piston 6 up-and-down motion is only driven to initiative piston 5, and little driven piston 6's diameter is little, can guarantee high oil pressure output.

After adopting above-mentioned structure, this embodiment beneficial effect does: the utility model discloses an improved structure of a pneumatic liquid pump, which drives a large-diameter driven piston to move together through a small-diameter driven piston to promote the oil output in the process of one-time reciprocating motion, after the pressure of an oil cavity is promoted, the large-diameter driven piston stops moving, the small-diameter driven piston continues to work, and the oil pressure output of high pressure is ensured; the working time is shortened from the original 8-10s to 3-5s, and the working efficiency of the oil pump is greatly improved.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a pneumatic liquid pump improves structure which characterized in that: the pneumatic oil pump comprises a pump base (1), a reciprocating type driving air chamber (2), a pressurized oil cavity (3), a pneumatic reversing valve (4), a driving piston (5), a small driven piston (6), a large driven piston (7), a compression spring (8), an elastic limiting clamping piece (9), an oil inlet check valve (10) and an oil outlet check valve (11); the upper end of the pump seat (1) is provided with a reciprocating type driving air chamber (2), the interior of the reciprocating type driving air chamber (2) is hermetically clamped with a driving piston (5), and the lower end of the pump seat (1) is provided with a pressurized oil cavity (3); the upper end of the reciprocating type driving air chamber (2) is provided with a pneumatic reversing valve (4), and the pneumatic reversing valve (4) is respectively connected to the upper end and the lower end of the reciprocating type driving air chamber (2) through air conveying pipes; the lower end of the driving piston (5) is connected with a small driven piston (6), the small driven piston (6) penetrates through a preformed hole in the middle of the pump base (1) and extends into the pressurized oil cavity (3), the small driven piston is movably inserted in the middle of a large driven piston (7) in the pressurized oil cavity (3), and the middle of the small driven piston (6) is movably clamped with the large driven piston (7) through a transversely arranged elastic limiting clamping piece (9); and a compression spring (8) is clamped at the outer side of the middle through hole of the large driven piston (7), and the upper end of the compression spring (8) is clamped in a groove at the upper end of the pressurizing oil cavity (3).

2. An improved structure of pneumatic liquid pump according to claim 1, wherein: the elastic limiting clamping piece (9) consists of a strong spring (91) and limiting steel balls (92), and the limiting steel balls (92) are respectively fixed at the left end and the right end of the strong spring (91).

3. An improved structure of pneumatic liquid pump according to claim 1, wherein: the lower end of the pressurizing oil cavity (3) is connected with an oil inlet one-way valve (10), and one side of the bottom of the pressurizing oil cavity (3) is connected with an oil outlet one-way valve (11) on the outer side of the pump seat (1) through a delivery pipe.

4. An improved structure of pneumatic liquid pump according to claim 1, wherein: the lower end of the middle of the small driven piston (6) is sleeved with a sealing rubber ring (93) which forms sealing with the middle of the large driven piston (7) through the insertion hole.

5. An improved structure of pneumatic liquid pump according to claim 1, wherein: and a sealing ring is sleeved on the outer side of the lower end of the large driven piston (7) to form sealing with the inner wall of the pressurizing oil cavity (3).