WO2023155356A1

WO2023155356A1 - High performance ultra high pressure pump

Info

Publication number: WO2023155356A1
Application number: PCT/CN2022/100953
Authority: WO
Inventors: 张志飞
Original assignee: 靖江虎贲机械科技有限公司
Priority date: 2022-02-21
Filing date: 2022-06-24
Publication date: 2023-08-24
Also published as: CN114412745A

Abstract

An ultra high pressure pump, which comprises a foot plate (1) and a handle assembly (2); a base (16) is arranged at the middle of the foot plate (1), and a filter (10) is connected to the foot plate (1); a plug (15), an abutment screw (14), a one way valve seat (18), and a third stage air cylinder tube (8) are arranged at the middle of the base (16) in order from bottom to top; a first stage air cylinder tube (6) is threadedly connected to an upper outer ring of the base (16); an air discharge connector (13) is connected at one side of the base (16); a second stage fixed piston (5) is connected to the third stage air cylinder tube (8); a push rod (4) is arranged in a hole of the third stage air cylinder tube (8); a third stage piston (23) is connected to a lower end of the push rod (4), and an upper end of the push rod (4) passes through the second stage fixed piston (5) and is connected to the handle assembly (2) by means of a rivet pin (3); a lower end of the handle assembly (2) is fixedly connected to a second stage air cylinder tube (7), and a lower end of the second stage air cylinder tube (7) is connected to a first stage piston (9). The present ultra high pressure pump has a compact structure, is novel and sensible, air output is clean and pure and can be directly used for breathing, inflating efficiency is improved, frequency of maintenance is greatly reduced and maintenance is very easy, a safety hazard is eliminated, and safety and service life are improved.

Description

A high-performance ultra-high pressure pump

technical field

The invention relates to the field of ultra-high pressure air pumps, in particular to a high-performance ultra-high pressure air pump.

Background technique

Ultra-high pressure pumps are mainly used for inflating tires of super-large trucks, filling small diving container equipment, filling various small high-pressure containers, various small equipment for emergency rescue and disaster relief powered by high-pressure gas, and various pneumatic jacks.

technical problem

There are following defects in the traditional ultra-high pressure air pump: 1. The piston adopts rubber material to produce friction between the metal cylinder body, and lubricating oil must be added. Lubricating oil is prone to spontaneous combustion under high temperature and high pressure, which has potential safety hazards. 2. Because the traditional air cylinder needs to add lubricating oil, the output air contains oil, and the compressed air cannot be directly used for breathing. 3. In the traditional air intake method, the air is directly taken in from the upper cover of the primary air chamber, the particles in the air cannot be filtered, the piston and the metal cylinder are easy to wear, and the durability is low. 4. It is prone to failure. The air cylinder needs to be disassembled and cleaned for 1-2 months, because there is a lot of dust in the air. After inhaling the air cylinder, it will mix with the oil and water vapor in the air cylinder to form mud. If there is too much mud, it will be blocked. The air outlet hole of the three-stage piston head makes the air outlet not smooth, or even unable to inflate at all. 5. A connection converter is required to connect the cylinder tube of the gas cylinder to the base, and the high-pressure check valve is installed in the connection converter. If the high-pressure check valve fails or the mud is cleaned, the entire gas cylinder needs to be dismantled to troubleshoot. Therefore, it is necessary to provide a high-performance ultra-high pressure pump with safe use, high durability and convenient maintenance.

technical solution

The purpose of the present invention is to solve the above technical problems and provide a high-performance ultra-high pressure pump.

In order to achieve the above-mentioned technical purpose and meet the above-mentioned technical requirements, the technical solution adopted in the present invention is: a high-performance ultra-high pressure pump, including a pedal, a handle assembly, and a pressure gauge, characterized in that: the middle part of the pedal is set There is a base, and the air inlet A end of the pedal is vertically connected with a filter; the middle part of the base is provided with a plug, a tightening screw, a one-way valve seat, and a three-stage cylinder tube in sequence from bottom to top; the outer ring of the upper part of the base There is a first-stage cylinder pipe connected by threads, and a one-way valve B is symmetrically arranged on the upper part of the base. One side of the base is connected with a deflation joint through threads, and the high-pressure gas outlet A on the other side is connected with an inflator tube through threads. The high-pressure gas outlet A is also connected with a pressure gauge; the upper end of the three-stage cylinder tube is connected with a second-stage fixed piston by threads on the small outer circle, and a push rod is arranged in the tube hole of the three-stage cylinder, and a three-stage piston is connected to the lower end of the push rod. The male copper head of the piston is provided with a three-stage piston on the male copper head of the three-stage piston, and the female copper head of the three-stage piston fastens the three-stage piston to the male copper head of the three-stage piston. An ultra-high pressure check valve B is arranged inside, and a sealing ring D is arranged in the cavity formed by the third-stage piston at the upper end of the female copper head of the three-stage piston and the male copper head of the three-stage piston; the upper end of the push rod passes through the second-stage fixed The piston is connected with the handle assembly through riveting pins; the lower end of the handle assembly is fixedly connected with a secondary cylinder tube, and the outer ring of the lower end of the secondary cylinder tube is connected with a primary piston through threads; the upper end of the primary cylinder tube is connected with a primary cylinder tube. Air chamber cover; the primary piston includes a primary piston seat, a bidirectional piston diaphragm, a tertiary pressure plate, two one-way valves A, a sealing ring E, and a plurality of fastening screws A, and the tertiary pressure plate passes through multiple The fastening screw A fastens the two-way piston diaphragm to the bottom surface of the first-stage piston seat. The one-way valve A is symmetrically arranged in the first-stage piston. The secondary air chamber is connected, and the end of the threaded connection between the primary piston seat and the secondary cylinder pipe is provided with a sealing ring E to prevent air from entering

The primary air chamber formed by the primary cylinder tube and the secondary cylinder tube.

Preferably, the secondary fixed piston includes a secondary fixed piston seat, an upper cover A, a one-way piston diaphragm, a sealing ring A, a secondary pressure plate and a sealing ring B, and the secondary fixed piston seat sequentially presses the upper cover A 1. The one-way piston diaphragm and the secondary pressure plate are fastened on the upper small outer circle of the three-stage cylinder tube, and a sealing ring B is arranged between the outer ring of the secondary pressure plate and the one-way piston diaphragm.

Preferably, the two-way piston diaphragm in the first-stage piston is provided with a large-diameter diaphragm matched with the inner diameter of the first-stage cylinder tube and a small-diameter diaphragm matched with the outer diameter of the third-stage cylinder tube, while changing the first-stage air chamber and the second-stage pressure in the air chamber.

Preferably, the upper part of the base is provided with a retaining ring that restricts the one-way valve B from popping up.

Preferably, the upper part of the base is symmetrically provided with an "L"-shaped air inlet B, and the lower part is provided with a high-pressure air outlet A and a high-pressure air outlet B respectively in the left and right directions.

Preferably, the upper part of the secondary cylinder pipe is provided with an air intake hole A.

Preferably, the male copper head of the three-stage piston is provided with an air inlet B. Preferably, an air release screw is connected to the outside of the air release joint, and a sealing ring C is provided at the connection between the inner end of the air release screw and the air release joint.

Preferably, the vent joint is provided with a high-pressure gas outlet A in the horizontal direction, and a plurality of vent holes are provided on the outer circle.

Preferably, the two-way piston diaphragm and the three-stage piston are made of polytetrafluoroethylene and polyimide composite materials.

Preferably, the one-way piston diaphragm is made of polytetrafluoroethylene and polyimide composite material.

Beneficial effect

Compared with the traditional structure , the beneficial effects of the present invention are: compact structure, novel and reasonable, durable efficiency increased by more than 2 times, greatly reduced maintenance frequency, and maintenance is very convenient, eliminates potential safety hazards, improves safety, and improves service life Get a geometric multiple improvement.

Description of drawings

Fig. 1 is the three-dimensional schematic diagram of the present invention;

Fig. 2 is a schematic diagram of the front view of the present invention;

Fig. 3 is a left view schematic diagram of the present invention;

Fig. 4 is A-A sectional view among Fig. 2;

Figure 5 is an enlarged view at C in Figure 4;

Figure 6 is an enlarged view at D in Figure 4;

Figure 7 is an enlarged view of E in Figure 4;

Fig. 8 is B-B sectional view among Fig. 3;

Fig. 9 is an enlarged view of F in Fig. 3;

In the figure: 1. Pedal, 1-1. Air inlet A, 2. Handle assembly, 3. Riveting pin, 4. Push rod, 5. Secondary fixed piston, 5-1. Secondary fixed piston seat, 5 -2. Upper cover A, 5-3. One-way piston diaphragm, 5-4. Sealing ring A, 5-5. Secondary pressure plate, 5-6. Sealing ring B, 6. Primary cylinder tube, 7. Two-stage cylinder pipe, 7-1. Air intake hole A, 8. Three-stage cylinder pipe, 9. One-stage piston, 9-1. Two-way piston diaphragm, 9-2. Three-stage pressure plate, 9-3. One-way Valve A, 9-4. Primary piston seat, 9-5. Seal ring E, 9-6. Fastening screw A, 10. Filter, 11. Air release screw, 12. Seal ring C, 13. Air release Connector, 13-1. Air release channel, 13-2. Air release hole, 14. Top tightening screw, 15. Plug, 16. Base, 16-1. High pressure air outlet A, 16-2. High pressure air outlet B, 16-3. Air inlet B, 17. Ultra-high pressure check valve A, 18. Check valve seat, 19. Ultra-high pressure check valve B, 20. Pressure gauge, 21. Three-stage piston female copper head, 22. Seal Circle D, 23. Tertiary piston, 24. Tertiary piston male copper head, 24-1. Air intake hole B, 25. Tertiary air chamber, 26. Secondary air chamber, 27. Primary air chamber, 28. Primary air chamber cover, 29. retaining ring, 30. one-way valve B.

BEST MODE FOR CARRYING OUT THE INVENTION

The present invention will be further described below.

Referring to the accompanying drawings, a high-performance ultra-high pressure pump includes a pedal (1), a handle assembly (2), and a pressure gauge (20). It is characterized in that: a base (16) is provided in the middle of the pedal (1) , the end of the air inlet A (1-1) of the pedal (1) is vertically connected with a filter (10); the middle part of the base (16) is sequentially provided with a plug (15) and a tightening screw (14) from bottom to top ), a one-way valve seat (18), and a three-stage cylinder tube (8); the upper outer ring of the base (16) is threadedly connected with a one-stage cylinder tube (6), and the upper part of the base (16) is also symmetrically provided with a one-way valve B (30), one side of the base (16) is threadedly connected with an air release joint (13), and the other side of the high-pressure gas outlet A (16-1) is threaded with an inflating pipe, and the high-pressure gas outlet A (16-1) -1) is also connected with a pressure gauge (20); the small outer circle at the upper end of the three-stage cylinder pipe (8) is threadedly connected with a two-stage fixed piston (5), and the hole in the three-stage cylinder pipe (8) A push rod (4) is provided, the lower end of the push rod (4) is connected with a three-stage piston male copper head (24), and a three-stage piston (23) is set on the three-stage piston male copper head (24). The piston female copper head (21) fastens the three-stage piston (23) on the three-stage piston male copper head (24), and the lower end hole of the three-stage piston male copper head (24) is provided with an ultra-high pressure check valve B (19), the cavity formed by the three-stage piston female copper head (21) and the three-stage piston male copper head (24) at the upper end of the three-stage piston (23) is provided with a sealing ring D (22); the push rod (4) The upper end passes through the secondary fixed piston (5) and is connected with the handle assembly (2) through the riveting pin (3); the lower end of the handle assembly (2) is fixedly connected with the secondary cylinder tube (7), The outer ring of the lower end of the secondary cylinder tube (7) is threadedly connected with a primary piston (9); the upper end of the primary cylinder tube (6) is connected with a primary air chamber cover (28);

The first-stage piston (9) includes a first-stage piston seat (9-4), a two-way piston diaphragm (9-1), a third-stage pressure plate (9-2), two one-way valves A (9-3), Sealing ring E (9-5), multiple fastening screws A (9-6), the three-stage pressure plate (9-2) connects the two-way piston diaphragm (9 -1) Fastened to the bottom surface of the first-stage piston seat (9-4), the one-way valve A (9-3) is symmetrically arranged inside the first-stage piston (9), and the one-way valve A (9-3) It communicates with the secondary air chamber (26) formed by the secondary cylinder pipe (7) and the tertiary cylinder pipe (8). A sealing ring E (9-5) is provided to prevent air from entering the primary air chamber (27) formed by the primary cylinder tube (6) and the secondary cylinder tube (7).

In this preferred embodiment, the secondary fixed piston (5) includes a secondary fixed piston seat (5-1), an upper cover A (5-2), a one-way piston diaphragm (5-3), and a sealing ring A (5-4), the secondary pressure plate (5-5) and the seal ring B (5-6), the secondary fixed piston seat (5-1) sequentially connects the upper cover A (5-2), the one-way piston The diaphragm (5-3) and the secondary pressure plate (5-5) are fastened on the small outer circle on the upper part of the three-stage cylinder tube (8), and the outer ring of the secondary pressure plate (5-5) and the diaphragm of the one-way piston A sealing ring B (5-6) is arranged between (5-3).

In this preferred embodiment, the two-way piston diaphragm (9-1) in the first-stage piston (9) is provided with a large-diameter diaphragm that matches the inner diameter of the first-stage cylinder tube (6) and with the third-stage cylinder tube (8). The small-diameter diaphragm matched with the outer diameter changes the pressure in the primary air chamber (27) and the secondary air chamber (26) at the same time.

In this preferred embodiment, the upper part of the base (16) is provided with a retaining ring (29) that restricts the one-way valve B (30) from popping up.

In this preferred embodiment, an "L"-shaped air inlet B (16-3) is arranged symmetrically on the upper part of the base (16), and a high-pressure air outlet A (16-1) and a high-pressure air outlet B ( 16-2).

In this preferred embodiment, the upper part of the secondary cylinder tube (7) is provided with an air intake hole A (7-1).

In this preferred embodiment, the three-stage piston male copper head (24) is provided with an air inlet B (24-1)

In this preferred embodiment, a deflation screw (11) is connected to the outside of the deflation joint (13), and a sealing ring C (12) is provided at the connection between the inner end of the deflation screw (11) and the deflation joint (13).

In this preferred embodiment, the air release joint (13) is provided with a high-pressure air outlet A (13-1) in the horizontal direction, and a plurality of air release holes (13-2) are provided on the outer circle.

In this preferred embodiment, the two-way piston diaphragm (9-1) and the three-stage piston (23) are made of polytetrafluoroethylene and polyimide composite materials.

In this preferred embodiment, the one-way piston diaphragm (5-3) is made of polytetrafluoroethylene and polyimide composite materials.

During specific implementation, the handle assembly is pulled up, and the filtered air enters the air inlet A1-1 on the pedal 1 from the filter 10, and then enters the air inlet B16-3 on the base 16, and the one-way valve B30 on the base is opened, and the first stage Check valve A9-3 in the piston 9, the air enters the secondary air chamber 26; at the same time, the normal pressure air in the first air chamber is discharged from the air outlet hole of the primary air chamber cover 28, and the handle assembly is pulled up gradually Pull up the air with increasing pressure in the secondary air chamber 26 to enter the tertiary air chamber 25 formed by the tertiary cylinder pipe 8 and the push rod 4 from the air inlet A7-1, and press the handle assembly down on the tertiary air chamber 25, the air whose pressure continues to increase gradually enters the ultra-high pressure check valve B19 from the air intake hole B24-1 and opens. To the high-pressure gas outlet A16-1, pump the high-pressure gas small equipment through the pumping pipe. After the pumping is completed, when the reading on the pressure gauge exceeds 30MPa, you need to loosen the venting screw 11. At this time, the high-pressure gas is released from the high-pressure gas outlet B16-2. Stomatal hole 13-2 discharges and unloads pressure, and just can be taken off inflating pipe.

The features of the present invention are:

1. The air is filtered by a filter before entering the air, which reduces the particulate impurities in the air and improves the service life.

2. Using polytetrafluoroethylene and polyimide composite materials, it has high temperature resistance, high lubricity and non-stickiness, excellent sealing performance, good anti-aging ability, extremely low friction coefficient and non-combustibility, which further improves the service life. Moreover, there is no need to use lubricating oil, and it will not spontaneously ignite under high temperature and high pressure environment, which improves safety and does not produce sludge. The air is released quickly, which improves the pumping efficiency and greatly reduces the maintenance frequency.

3. Due to the oil-free lubrication, the output air is clean and pure, which can be directly used for breathing.

4. The first-stage piston adopts a two-way piston diaphragm and two one-way valves A, which makes the structure compact, novel and reasonable.

5. The cylinder tube is directly connected to the base, and the ultra-high pressure check valve B is installed in the base. If the ultra-high pressure check valve B fails, just loosen the plug and tighten the screw to troubleshoot or replace it for maintenance It is very convenient, saves materials and reduces costs.

Above-mentioned embodiment of the present invention, only clearly illustrates the example that the present invention does, but is not used to limit protection scope of the present invention, all equivalent technical schemes also belong to the category of the present invention, and the patent protection scope of the present invention should be determined by each A claim is limited.

Claims

A high-performance ultra-high-pressure pump, including a pedal (1), a handle assembly (2), and a pressure gauge (20), characterized in that: a base (16) is provided in the middle of the pedal (1), and the pedal (1 ) end of the air inlet A (1-1) is vertically connected with a filter (10); the middle part of the base (16) is sequentially provided with a plug (15), a tightening screw (14), a one-way Valve seat (18), three-stage cylinder pipe (8); the upper outer ring of the base (16) is threadedly connected with the first-stage cylinder pipe (6), and the upper part of the base (16) is also symmetrically provided with a one-way valve B (30) , one side of the base (16) is threadedly connected with a deflation joint (13), and the other side is threaded with an inflating pipe in the high-pressure gas outlet A (16-1), and the high-pressure gas outlet A (16-1) is A pressure gauge (20) is also connected; the small outer circle at the upper end of the three-stage cylinder tube (8) is threadedly connected with a two-stage fixed piston (5), and a push rod is arranged in the hole of the three-stage cylinder tube (8) (4), the lower end of the push rod (4) is connected with a three-stage piston male copper head (24), the three-stage piston male copper head (24) is provided with a three-stage piston (23), and the three-stage piston female copper head (21) Fasten the three-stage piston (23) on the three-stage piston male copper head (24), and the ultra-high pressure check valve B (19) is arranged in the lower end hole of the three-stage piston male copper head (24), A sealing ring D (22) is arranged in the cavity formed by the three-stage piston (23) and the three-stage piston male copper head (24) at the upper end of the three-stage piston female copper head (21); the upper end of the push rod (4) Pass through the secondary fixed piston (5) and connect with the handle assembly (2) through the riveting pin (3); the lower end of the handle assembly (2) is fixedly connected with the secondary cylinder tube (7), and the secondary cylinder tube (7) The outer ring at the lower end is threadedly connected with a primary piston (9); the upper end of the primary cylinder tube (6) is connected with a primary air chamber cover (28);

The primary piston (9) includes a primary piston seat (9-4), a bidirectional piston diaphragm (9-1), a primary piston pressure plate (9-2), and two one-way valves A (9-3) , sealing ring E (9-5), multiple fastening screws A (9-6), the first-stage piston pressure plate (9-2) connects the two-way piston diaphragm through multiple fastening screws A (9-6) (9-1) is fastened to the bottom surface of the first-stage piston seat (9-4), and a one-way valve A (9-3) is symmetrically arranged inside the first-stage piston (9), The one-way valve A (9-3) communicates with the secondary air chamber (26) formed by the secondary cylinder pipe (7) and the tertiary cylinder pipe (8), and the primary piston seat (9-4) communicates with the The end of the threaded connection of the secondary cylinder tube (7) is provided with a sealing ring E (9-5) to prevent air from entering the primary air chamber (27) formed by the primary cylinder tube (6) and the secondary cylinder tube (7).
A high-performance ultra-high pressure pump according to claim 1, characterized in that: the secondary fixed piston (5) includes a secondary fixed piston seat (5-1), an upper cover A (5-2), One-way piston diaphragm (5-3), sealing ring A (5-4), secondary pressure plate (5-5) and sealing ring B (5-6), the secondary fixed piston seat (5-1) Fasten the upper cover A (5-2), the one-way piston diaphragm (5-3), and the second-stage pressure plate (5-5) on the upper small outer circle of the third-stage cylinder tube (8) in sequence. A sealing ring B (5-6) is arranged between the outer ring of the pressure plate (5-5) and the one-way piston diaphragm (5-3).
A high-performance ultra-high pressure pump according to claim 1, characterized in that: the two-way piston diaphragm (9-1) in the first-stage piston (9) is provided with a The large-diameter diaphragm and the small-diameter diaphragm matched with the outer diameter of the tertiary cylinder pipe (8) change the pressure in the primary air chamber (27) and the secondary air chamber (26) simultaneously.
A high-performance ultra-high pressure pump according to claim 1, characterized in that: the upper part of the base (16) is provided with a retaining ring (29) that restricts the upward ejection of the one-way valve B (30).
A high-performance ultra-high pressure pump according to claim 1, characterized in that: the upper part of the base (16) is symmetrically provided with an "L"-shaped air inlet B (16-3), and the lower part in the left and right directions respectively A high-pressure gas outlet A (16-1) and a high-pressure gas outlet B (16-2) are provided.
A high-performance ultra-high pressure pump according to claim 1, characterized in that: the upper part of the secondary cylinder tube (7) is provided with an air intake hole A (7-1).
A high-performance ultra-high pressure pump according to claim 1, characterized in that: the three-stage piston male copper head (24) is provided with an air inlet B (24-1).
A high-performance ultra-high pressure pump according to claim 1, characterized in that: a deflation screw (11) is connected to the outside of the deflation joint (13), and the inner end of the deflation screw (11) is connected to the deflation joint (13) A sealing ring C (12) is provided at the connection.
A high-performance ultra-high-pressure pump according to claim 1 or 7, characterized in that: the air release joint (13) is provided with a high-pressure gas outlet A (13-1) in the horizontal direction, and there are multiple outlets on the outer circle. vent holes (13-2).
A high-performance ultra-high pressure pump according to claim 1, characterized in that: the two-way piston diaphragm (9-1) and the three-stage piston (23) are made of polytetrafluoroethylene and polyimide composite materials production.
A high-performance ultra-high pressure pump according to claim 2, characterized in that: the one-way piston diaphragm (5-3) is made of polytetrafluoroethylene and polyimide composite materials.