Double-end gas-liquid booster pump

Abstract

The utility model discloses a double-end gas-liquid booster pump which comprises an air cylinder, oil cylinders are arranged at the two ends of the air cylinder, a piston is arranged in an inner cavity of the air cylinder and can reciprocate to drive the oil cylinders to work, a reversing component is arranged on the upper surface of the air cylinder to achieve reciprocating motion of the piston, and trigger components are arranged at the two ends of the air cylinder and penetrate through cavities. The piston abuts against the triggering component so as to drive the reversing component to conduct gas reversing work. The gas-liquid booster pump has the advantages that the problems of low reversing efficiency, complex structure, poor reliability and high energy consumption of a traditional gas-liquid booster pump are effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of booster pump especially relates to a double -end gas -liquid booster pump. BACKGROUND

[0002] Gas-liquid booster pump is a kind of key equipment by gas drive liquid booster, is widely used in hydraulic system, high-pressure cleaning, injection molding etc. Field. The traditional gas-liquid booster pump adopts single head structure, and piston reciprocating motion is driven by single cylinder, and its reversing process relies on external electromagnetic valve or mechanical limiting device control. However, such design has many limitations: 1, reversing efficiency is low: the response delay of external reversing valve can cause the discontinuous movement of piston, affect the stability of booster;2, complex structure: multiple rely on discrete reversing control element, cause the overall volume is huge, and maintenance cost is high;3, insufficient reliability: mechanical limiting device is easy to wear, and sealing failure or reversing failure is easily caused after long-term use;4, energy loss is big: gas circuit design redundancy, gas flow path is long, and pressure drop and energy consumption are easily generated.

[0003] To solve the above problems, double-chamber or double-drive structure design appears in prior art, for example, symmetric cylinder layout is used to improve reversing speed. However, such scheme has problems such as poor gas circuit linkage and trigger signal transmission lag, leading to insufficient synchronization of piston reciprocating motion. In addition, the traditional trigger component mostly adopts rigid contact type structure, which is easy to cause component fatigue or sealing failure due to frequent impact, and restricts the service life of the equipment.

[0004] Based on the above situation, a new double-head gas-liquid booster pump is needed, which optimizes the gas circuit layout and mechanical trigger mechanism through the collaborative design of integrated reversing component and trigger component, improves the reversing efficiency, and considers the compactness and operation reliability of the structure. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a double-head gas-liquid booster pump to solve the problems of low reversing efficiency, complex structure, poor reliability and high energy consumption of the traditional gas-liquid booster pump.

[0006] The utility model realizes the above-mentioned purposes by the following technical schemes:

[0007] A double-head gas-liquid booster pump, comprising a cylinder, the cylinder is provided with an oil cylinder at both ends, the inner cavity of the cylinder is provided with a piston, which can reciprocatingly drive the oil cylinder to work, the upper surface of the cylinder is provided with a reversing component to realize the reciprocating movement of the piston, the through-chamber at both ends of the cylinder is provided with a trigger component, and the piston abuts against the trigger component to drive the reversing component to work.

[0008] Further, the piston divides the cylinder into a first gas chamber and a second gas chamber, and the volume of the first gas chamber and the second gas chamber changes with the reciprocating movement of the piston, and the side walls at both ends of the cylinder are provided with mounting holes for mounting the trigger component.

[0009] Further, the reversing component comprises a reversing valve and a communication component arranged at both ends of the upper surface of the cylinder respectively, a gas reversing conduit and an air passage conduit are arranged in communication between the reversing valve and the communication component, a first gas passage and a second gas passage are arranged in the inside of the reversing valve at one end of the cylinder in common, a third gas passage and a fourth gas passage are arranged in the inside of the communication component at the other end of the cylinder in common, the lower ends of the first gas passage, the second gas passage, the third gas passage and the fourth gas passage are communicated with the mounting holes, the first gas passage and the third gas passage are communicated with the two ends of the gas reversing conduit respectively, the fourth gas passage is communicated with the outside, the first gas passage is communicated with the end of the reversing valve, the second gas passage is communicated with the head of the reversing valve, a fifth gas passage is arranged in the inside of the communication component at one end of the cylinder in common and is communicated with the first gas chamber, and a sixth gas passage is arranged in the inside of the communication component at the other end and is communicated with the second gas chamber.

[0010] Further, the reversing valve comprises a valve body, a gas reversing main body is arranged in the inner cavity of the valve body, a follower is arranged in the inner cavity of the gas reversing main body, and the follower can move back and forth with the change of the gas pressure at both ends, so as to change the gas flow direction.

[0011] Further, an air inlet hole is arranged at one end of the valve body, a first air outlet hole and a second air outlet hole are arranged on the adjacent two side surfaces respectively, the first air outlet hole and the fifth gas passage are communicated with the two ends of the air passage conduit respectively, and the gas is delivered to the first gas chamber through the fifth gas passage, the second air outlet hole is communicated with the sixth gas passage, and the gas is delivered to the second gas chamber through the sixth gas passage, a seventh gas passage communicated with the end of the gas reversing main body is arranged in the inside of the valve body, and an eighth gas passage communicated with the head of the gas reversing main body is arranged in the inside of the valve body, the seventh gas passage is communicated with the first gas passage, and the eighth gas passage is communicated with the second gas passage.

[0012] Further, the trigger component comprises a first fixing component and a second fixing component fixed on the outer side surface and the inner side surface of the mounting hole respectively, a thimble is arranged in the inner cavity of the first fixing component, a positioning ring is arranged on the thimble, a spring is sleeved on the thimble and located between the first fixing component and the positioning ring, the thimble can slide in the center hole of the second fixing component, and sealing rings are arranged between the contact surfaces of the first fixing component, the second fixing component and the positioning ring and the mounting hole respectively.

[0013] Beneficial effects: the utility model has the following beneficial effects:

[0014] 1. The gas switching work is driven by the switching component abutting against the trigger component through the piston, the problem of response delay of the traditional external switching valve is avoided, the piston movement is continuous, and the stability of the supercharging and the switching efficiency are effectively improved;

[0015] 2. The switching component and the trigger component are integrated, the traditional separate switching control element is abandoned, the overall structure is more compact, the volume of the supercharging pump is reduced, and the maintenance cost is reduced;

[0016] 3. In the structure of the trigger component, the plunger works under the cooperation of the spring and the positioning ring, the problems of component fatigue or sealing failure caused by frequent impact of the traditional rigid contact type trigger component are avoided, and the reliability and service life of the equipment are improved;

[0017] 4. The gas path layout is optimized, the gas flow path is shortened, the gas path design redundancy is reduced, the pressure drop and energy consumption are reduced, and the energy utilization rate is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of the utility model;

[0019] Figure 2 It is a structural schematic view of the cylinder of the utility model;

[0020] Figure 3 It is a first cross-sectional view of the switching component of the utility model;

[0021] Figure 4 It is a second cross-sectional view of the switching component of the utility model;

[0022] Figure 5 It is a third cross-sectional view of the switching component of the utility model;

[0023] Figure 6 It is a fourth cross-sectional view of the switching component of the utility model;

[0024] Figure 7 It is a structural schematic view of the switching valve of the utility model;

[0025] Figure 8 It is a structural schematic view of the valve body of the utility model;

[0026] Figure 9 It is Figure 4 the sectional view of A-A section;

[0027] Figure 10 It is Figure 4 the sectional view of B-B section;

[0028] Figure 11 It is a structural schematic view of the trigger component of the utility model.

[0029] In the figure: 1-cylinder, 2-oil cylinder, 3-piston, 4-reversing component, 5-trigger component;

[0030] 101-first air chamber, 102-second air chamber, 103-mounting hole, 401-reversing valve, 402-communication piece, 403-gas reversing conduit, 404-ventilation conduit, 405-first air passage, 406-second air passage, 407-third air passage, 408-fourth air passage, 409-fifth air passage, 410-sixth air passage, 4011-valve body, 4012-gas reversing main body, 4013-follower, 4014-inlet hole, 4015-first outlet hole, 4016-second outlet hole, 4017-seventh air passage, 4018-eighth air passage, 501-first fixing piece, 502-second fixing piece, 503-needle, 504-positioning ring, 505-spring. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0032] Combined with Figures 1 to 11 As shown in the figure, a double-head gas-liquid supercharger pump comprises a cylinder 1, oil cylinders 2 are arranged at both ends of the cylinder 1, a piston 3 is arranged in the inner cavity of the cylinder 1 and can reciprocate to drive the oil cylinders 2 to work, a reversing component 4 is arranged on the upper surface of the cylinder 1 to realize the reciprocation of the piston 3, and trigger components 5 are arranged in the through cavities at both ends of the cylinder 1, so that the piston 3 can accurately abut against the trigger components 5 to drive the reversing component 4 to work when the piston 3 moves to both ends. This close structural cooperation reduces the intermediate links of power transmission, avoids the response delay problem that may occur in the traditional external control mode, improves the energy transmission efficiency, and guarantees the stability and efficiency of the supercharger pump.

[0033] When the piston 3 moves in the cylinder 1, the cylinder 1 is divided into two independent air chambers, i.e. a first air chamber 101 and a second air chamber 102. With the reciprocation of the piston 3, the volumes of the first air chamber 101 and the second air chamber 102 also change. Mounting holes 103 are arranged in the side walls at both ends of the cylinder 1 for mounting the trigger components 5, and the trigger positions of the trigger components 5 correspond to the limit positions of the piston 3 in the volume change process of the two air chambers. This structure makes the flow and pressure change of the gas between the two air chambers become the power source for driving the reciprocation of the piston 3. Meanwhile, the mounting holes 103 provide a stable mounting basis for the trigger components 5, ensuring that the trigger components 5 can accurately perceive the position of the piston 3 and control the reversing component 4 to reverse the gas in time, thereby guaranteeing the continuity and stability of the supercharger pump.

[0034] The reversing component 4 includes a reversing valve 401 and a connecting piece 402 arranged at the two ends of the upper surface of the cylinder 1 respectively, and the reversing valve 401 and the connecting piece 402 are connected and communicated with a gas reversing conduit 403 and an air passage conduit 404 arranged therebetween, the first gas passage 405 and the second gas passage 406 are jointly arranged in the inside of the one end of the cylinder 1 and the inside of the reversing valve 401, the third gas passage 407 and the fourth gas passage 408 are jointly arranged in the inside of the other end of the cylinder 1 and the inside of the connecting piece 402, the lower ends of the first gas passage 405, the second gas passage 406, the third gas passage 407 and the fourth gas passage 408 are communicated with the mounting hole 103, the first gas passage 405 and the third gas passage 407 are communicated with the two ends of the gas reversing conduit 403 respectively, the fourth gas passage 408 is communicated with the outside, the first gas passage 405 is communicated with the end of the reversing valve 401, the second gas passage 406 is communicated with the head of the reversing valve 401, the fifth gas passage 409 is jointly arranged in the inside of the one end of the cylinder 1 and the inside of the connecting piece 402 and is communicated with the first gas chamber 101, the sixth gas passage 410 is arranged in the inside of the other end of the cylinder 1 and is communicated with the second gas chamber 102, the reasonable connection and layout of the plurality of gas passages ensure that the gas can be accurately reversed according to the movement state of the piston 3 and the signal of the triggering component 5, and the disorderly flow of the gas and the pressure loss are avoided, the gas reversing conduit 403 and the air passage conduit 404 further optimize the gas flow path, improve the response speed of the reversing component 4, and improve the overall work of the booster pump.

[0035] The reversing valve 401 includes a valve body 4011, the valve body 4011 is provided with a gas reversing main body 4012 in the inner cavity, the gas reversing main body 4012 is provided with a follower 4013 in the inner cavity, and the two ends thereof are communicated with different gas passages respectively, when the piston 3 abuts against and triggers the triggering component 5 in the first gas chamber 101 and the second gas chamber 102 respectively, the pressure in the gas passage changes, the pressure difference of the gas passage acts on the follower 4013, so that the follower 4013 moves back and forth, and then the flow direction of the gas in the reversing valve 401 is changed, this structure design realizes the automatic control of the gas flow direction, the follower 4013 can flexibly adjust the gas path according to the change of the gas pressure in the gas passage, the response is more sensitive, the gas reversing can be quickly and accurately realized, the pressure fluctuation and energy loss caused by the untimely reversing are reduced, and the working stability and energy utilization efficiency of the booster pump are improved.

[0036] The valve body 4011 is provided with an air inlet hole 4014 at one end, which is the gas inlet and provides gas source for the whole gas circuit. The first and second gas outlet holes 4015 and 4016 are respectively provided on the two adjacent side surfaces. The first gas outlet hole 4015 and the fifth gas channel 409 are respectively connected with both ends of the air guide pipe 404 and deliver gas into the first gas chamber 101 through the fifth gas channel 409. The second gas outlet hole 4016 is connected with the sixth gas channel 410 and delivers gas into the second gas chamber 102 through the sixth gas channel 410. The coordinated work of the multiple gas channels in a complex and orderly manner enables the gas to accurately enter the corresponding gas chamber in different working stages, ensuring the stable reciprocating movement of the piston 3. The valve body 4011 is internally provided with a seventh gas channel 4017 connected with the end of the gas reversing body 4012 and an eighth gas channel 4018 connected with the head of the gas reversing body 4012. The seventh gas channel 4017 is connected with the first gas channel 405, and the eighth gas channel 4018 is connected with the second gas channel 406.

[0037] The trigger component 5 includes a first fixing member 501 and a second fixing member 502 fixed on the outer side surface and the inner side surface of the mounting hole 103, respectively. The inner cavity of the first fixing member 501 is provided with a thimble 503, and the thimble 503 is provided with a positioning ring 504 to limit the movement range of the thimble 503. The thimble 503 is sleeved with a spring 505 between the first fixing member 501 and the positioning ring 504, and the spring 505 provides elastic restoring force. The thimble 503 can slide in the center hole of the second fixing member 502. The first fixing member 501, the second fixing member 502, and the positioning ring 504 are respectively installed between the contact surfaces of the mounting hole 103 and the sealing ring, which ensures the sealing between the trigger component 5 and the cylinder 1. When the piston 3 abuts against the trigger component 5, the thimble 503 is compressed, the spring 505 is elastically deformed to store energy, and at the same time, the reversing signal is triggered.

[0038] Working principle:

[0039] When the piston 3 touches the trigger component 5 in the first gas chamber 101, the ejector pin 503 moves, the gas in the third gas channel 407, the gas reversing conduit 403 and the seventh gas channel 4017 flows out from the fourth gas channel 408 to the outside through the mounting hole 103, the gas pressure at the end of the follower 4013 connected with the seventh gas channel 4017 decreases, the gas pressure at the head end is unchanged, the pressure difference makes the follower 4013 move backward, the gas flows into the first gas chamber 101 from the first gas outlet hole 4015 through the air conduit 404 and the fifth gas channel 409, so that the piston 3 moves to the direction of the second gas chamber 102, the ejector pin 503 resets, and the gas channel connected with the trigger component 5 is closed; when the piston 3 touches the trigger component 5 in the second gas chamber 102, the ejector pin 503 moves, the gas entering from the gas inlet hole 4014 reaches the end of the follower 4013 from the eighth gas channel 4018, the second gas channel 406, the mounting hole 103, the first gas channel 405 and the seventh gas channel 4017, so that the gas pressure at the end of the follower 4013 increases, and the follower 4013 moves forward, so that the gas enters the second gas chamber 102 from the second gas outlet hole 4016 through the sixth gas channel 410, and so on, so as to realize the reciprocating movement of the piston 3 to work.

[0040] It is apparent for those skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, and the present application can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended to embrace all changes falling within the meaning and range of equivalents of the claims. Any reference signs in the claims should not be considered as limiting the claims involved.

[0041] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A dual-head gas-liquid booster pump, characterized in that: The cylinder (1) includes a cylinder (2) with oil cylinders (2) at both ends. A piston (3) is provided in the inner cavity of the cylinder (1) to drive the oil cylinder (2) to work. A reversing component (4) is provided on the upper surface of the cylinder (1) to realize the reversing movement of the piston (3). A triggering component (5) is provided in the through chamber at both ends of the cylinder (1). The piston (3) abuts against the triggering component (5) to drive the reversing component (4) to perform gas reversing work.

2. The dual-head gas-liquid booster pump according to claim 1, characterized in that: The piston (3) divides the cylinder (1) into a first chamber (101) and a second chamber (102). As the piston (3) moves back and forth, the volume of the first chamber (101) and the second chamber (102) also changes. The cylinder (1) has mounting holes (103) on both sides for mounting the triggering component (5).

3. A dual-head gas-liquid booster pump according to claim 2, characterized in that: The reversing component (4) includes a reversing valve (401) and a connecting member (402) respectively disposed at both ends of the upper surface of the cylinder (1). A gas reversing conduit (403) and a venting conduit (404) are connected between the reversing valve (401) and the connecting member (402). One end of the cylinder (1) and the reversing valve (401) have a first air passage (405) and a second air passage (406) together. The other end of the cylinder (1) and the connecting member (402) have a third air passage (407) and a fourth air passage (408) together. The first air passage (405), the second air passage (406), the third air passage (407) and the fourth air passage (408) are connected together. The lower end of the passage (408) is connected to the mounting hole (103). The first air passage (405) and the third air passage (407) are respectively connected to both ends of the gas reversing duct (403). The fourth air passage (408) is connected to the outside. The first air passage (405) is connected to the end of the reversing valve (401). The second air passage (406) is connected to the beginning of the reversing valve (401). One end of the cylinder (1) and the inside of the connecting piece (402) are provided with a fifth air passage (409) and are connected to the first air chamber (101). The other end is provided with a sixth air passage (410) and is connected to the second air chamber (102).

4. A dual-head gas-liquid booster pump according to claim 3, characterized in that: The reversing valve (401) includes a valve body (4011), and a gas reversing body (4012) is provided in the inner cavity of the valve body (4011). A follower (4013) is provided in the inner cavity of the gas reversing body (4012), which can move back and forth as the gas pressure at both ends changes, thereby changing the gas flow direction.

5. A dual-head gas-liquid booster pump according to claim 4, characterized in that: The valve body (4011) has an air inlet (4014) at one end, and a first air outlet (4015) and a second air outlet (4016) on its two adjacent sides. The first air outlet (4015) and the fifth air passage (409) are respectively connected to both ends of the ventilation duct (404), and the gas is transported to the first air chamber (101) through the fifth air passage (409). The second air outlet (4016) is connected to the sixth air passage (410), and... Gas is delivered to the second air chamber (102) through the sixth air passage (410). The valve body (4011) has a seventh air passage (4017) that communicates with the end of the gas switching body (4012) and an eighth air passage (4018) that communicates with the beginning of the gas switching body (4012). The seventh air passage (4017) is connected to the first air passage (405), and the eighth air passage (4018) is connected to the second air passage (406).

6. A dual-head gas-liquid booster pump according to claim 5, characterized in that: The triggering component (5) includes a first fixing member (501) and a second fixing member (502) respectively fixed to the outer and inner sides of the mounting hole (103). The first fixing member (501) has a pin (503) in its inner cavity. The pin (503) has a positioning ring (504) on it. The pin (503) is fitted with a spring (505) and is located between the first fixing member (501) and the positioning ring (504). The pin (503) can slide in the center hole of the second fixing member (502). The first fixing member (501), the second fixing member (502) and the positioning ring (504) are all fitted with sealing rings between their contact surfaces with the mounting hole (103).

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