Bidirectional high-pressure pump

Abstract

The utility model relates to the technical field of booster pumps, in particular to a bidirectional high-pressure pump, which comprises a pressure cylinder, a piston disc, a first piston cylinder and a second piston cylinder, a valve core is arranged in the pressure cylinder, and the pressure cylinder is divided into a left chamber and a right chamber by the valve core; the first piston cylinder and the second piston cylinder are arranged on the two sides of the pressure cylinder respectively, the first piston cylinder communicates with the left cavity, and the second piston cylinder communicates with the right cavity; a first piston rod and a second piston rod are arranged on the two sides of the valve element, the first piston rod is in sliding fit with the first piston cylinder, and the second piston rod is in sliding fit with the second piston cylinder. A first liquid inlet pipe and a first liquid outlet pipe are arranged on the first piston cylinder, and a second liquid inlet pipe and a second liquid outlet pipe are arranged on the second piston cylinder; a first communicating pipe and a second communicating pipe are further arranged on the pressure cylinder. By means of the first piston cylinder and the second piston cylinder, the problems that an existing booster pump is in one-way boosting, and boosting efficiency is not high enough are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of booster pumps, in particular to a bidirectional high-pressure pump. Background Art

[0002] A booster pump is a pump used to increase the pressure of a fluid. There are different types of booster pumps depending on the application scenario. Booster pumps are usually used to boost the pressure of water supply systems, such as water heaters, saunas, baths, and other occasions. In order to solve the problem of insufficient pressure in the fluid pipeline, a booster pump is generally connected in series in the pipeline to increase the pipeline pressure. The principle of the booster pump is to use the low pressure of a large-area piston to generate the high pressure of a small-area piston. However, the existing booster pumps are generally one-way boosters, with low boosting efficiency and a small boosting ratio.

[0003] A bidirectional high-pressure pump is needed to solve the above problems. Utility Model Content

[0004] In view of the above problems, a bidirectional high-pressure pump is provided, which solves the problem that the existing booster pumps are all unidirectional boosters and the boosting efficiency is not high enough through a first piston cylinder and a second piston cylinder.

[0005] In order to solve the problems of the prior art, the utility model provides a bidirectional high-pressure pump, including a booster cylinder, a piston disc, a first piston cylinder and a second piston cylinder, a valve core is arranged in the booster cylinder, and the valve core divides the booster cylinder into a left chamber and a right chamber; the first piston cylinder and the second piston cylinder are respectively arranged on both sides of the booster cylinder, the first piston cylinder is connected to the left chamber, and the second piston cylinder is connected to the right chamber; a first piston rod and a second piston rod are arranged on both sides of the valve core, the first piston rod is slidably matched with the first piston cylinder, and the second piston rod is slidably matched with the second piston cylinder; a first liquid inlet pipe and a first liquid outlet pipe are arranged on the first piston cylinder, and a second liquid inlet pipe and a second liquid inlet pipe are arranged on the second piston cylinder; a first connecting pipe and a second connecting pipe are also arranged on the booster cylinder, the first connecting pipe is connected to the left chamber, and the second connecting pipe is connected to the right chamber.

[0006] Preferably, the first liquid inlet pipe and the first liquid outlet pipe are threadedly connected to the first piston cylinder, and the second liquid inlet pipe and the second liquid outlet pipe are threadedly connected to the second piston cylinder.

[0007] Preferably, the first liquid inlet pipe is provided with a first thick tube body, a first thin tube body and a first unidirectional flow component, and the second liquid inlet pipe has the same structure as the first liquid inlet pipe; the first liquid outlet pipe is provided with a second thick tube body, a second thin tube body and a second unidirectional flow component, and the second liquid outlet pipe has the same structure as the first liquid outlet pipe; the first thick tube body is connected to the first thin tube body; the second thick tube body is connected to the second thin tube body.

[0008] Preferably, the first unidirectional flow component includes a first spring and a first steel ball; the first spring is arranged between the first steel ball and the first thick tube body, the first steel ball is arranged above the first thin tube body, and the diameter of the first steel ball is larger than the inner diameter of the first thin tube body; the second unidirectional flow component includes a second spring and a second steel ball; the second spring is arranged between the second steel ball and the second thick tube body, the second steel ball is arranged above the second thin tube body, and the diameter of the second steel ball is larger than the inner diameter of the second thin tube body.

[0009] Preferably, the first one-way flow component is also provided with a first sealing ring; the first sealing ring is arranged between the first steel ball and the first capillary body; the second one-way flow component is also provided with a second sealing ring; the second sealing ring is arranged between the second steel ball and the second capillary body.

[0010] Preferably, the boost cylinder comprises a cylinder body and a first side plate; openings are arranged on both sides of the cylinder body, the first side plates have two and are arranged on both sides of the cylinder body respectively, and the first side plates are fixedly connected to the cylinder body by connecting bolts.

[0011] Preferably, a second side plate is provided on one side of the first side plate; the second side plate is used to fix the first piston cylinder and the second piston cylinder, and the second side plate is fixedly connected to the first side plate by connecting bolts.

[0012] Preferably, a limiting groove is provided on the inner side of the second side plate; a first limiting block is provided on the first piston cylinder at a position corresponding to the limiting groove; and a second limiting block is provided on the second piston cylinder at a position corresponding to the limiting groove.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The utility model is provided with a booster cylinder, a first piston cylinder and a second piston cylinder. By pumping hydraulic oil into the left chamber and the right chamber of the booster cylinder alternately, a bidirectional boosting effect of the booster pump is achieved. The bidirectional boosting can improve the boosting efficiency of the booster pump, increase the service life of the booster cylinder and the piston, and reduce the vibration of the booster pump.

[0015] 2. The utility model is provided with steel balls and springs, which realize the one-way flow effect of liquid when passing through the liquid inlet pipe and the liquid outlet pipe, thereby avoiding the reverse flow of high-pressure liquid during the pressurization process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of a bidirectional high-pressure pump.

[0017] Figure 2 It is a cross-sectional view of a bidirectional high-pressure pump.

[0018] Figure 3 It is a partial schematic diagram of point A of a bidirectional high-pressure pump.

[0019] Figure 4 It is a partial schematic diagram of location B of a bidirectional high-pressure pump.

[0020] Figure 5 It is a partial schematic diagram of the C portion of a bidirectional high-pressure pump.

[0021] Figure 6 It is a partial schematic diagram of the D portion of a bidirectional high-pressure pump.

[0022] Figure 7 It is a partial schematic diagram of the E portion of a bidirectional high-pressure pump.

[0023] The numbers in the figure are: 1, booster cylinder; 11, left chamber; 12, right chamber; 13, first connecting pipe; 14, second connecting pipe; 15, cylinder body; 16, first side plate; 161, second side plate; 1611, limit groove; 2, valve core; 21, first piston rod; 22, second piston rod; 3, first piston cylinder; 31, first liquid inlet pipe; 311, first thick tube body; 312, first thin tube body; 313, first one-way flow component ; 3131, first spring; 3132, first steel ball; 3133, first sealing ring; 32, first liquid outlet pipe; 321, second thick tube body; 322, second thin tube body; 323, second unidirectional flow component; 3231, second spring; 3232, second steel ball; 3233, second sealing ring; 33, first limit block; 4, second piston cylinder; 41, second liquid inlet pipe; 42, second liquid outlet pipe; 43, second limit block. DETAILED DESCRIPTION

[0024] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] Reference Figure 1 and Figure 2 : A bidirectional high-pressure pump, comprising a booster cylinder 1, a piston disc, a first piston cylinder 3 and a second piston cylinder 4, a valve core 2 is arranged in the booster cylinder 1, and the valve core 2 divides the booster cylinder 1 into a left chamber 11 and a right chamber 12; the first piston cylinder 3 and the second piston cylinder 4 are respectively arranged on both sides of the booster cylinder 1, the first piston cylinder 3 is connected to the left chamber 11, and the second piston cylinder 4 is connected to the right chamber 12; a first piston rod 21 and a second piston rod 22 are arranged on both sides of the valve core 2, the first piston rod 21 slides with the first piston cylinder 3, and the second piston rod 22 slides with the second piston cylinder 4; a first liquid inlet pipe 31 and a first liquid outlet pipe 32 are arranged on the first piston cylinder 3, and a second liquid inlet pipe 41 and a second liquid inlet pipe 41 are arranged on the second piston cylinder 4; a first connecting pipe 13 and a second connecting pipe 14 are also arranged on the booster cylinder 1, the first connecting pipe 13 is connected to the left chamber 11, and the second connecting pipe 14 is connected to the right chamber 12.

[0026] The valve core 2 is arranged in the boosting cylinder 1, and the valve core 2 is used to divide the cavity inside the boosting cylinder 1 into a left chamber 11 and a right chamber 12. The first connecting pipe 13 is connected to the left chamber 11, and the first connecting pipe 13 is used to pump hydraulic oil into the left chamber 11. The second connecting pipe 14 is connected to the right chamber 12, and the second connecting pipe 14 is used to pump hydraulic oil into the right chamber 12. The first piston cylinder 3 is connected to one side of the boosting cylinder 1, and the second piston cylinder 4 is connected to the other side of the boosting cylinder 1. The first piston cylinder 3 and the second piston cylinder 4 are coaxially arranged with the boosting cylinder 1. The first piston rod 21 and the second piston rod 22 are respectively arranged on both sides of the valve core 2. The piston rod 21 extends into the first piston cylinder 3 and slides with the first piston cylinder 3, the second piston rod 22 extends into the second piston cylinder 4 and slides with the second piston cylinder 4, a first liquid inlet pipe 31 and a first liquid outlet pipe 32 are provided on the first piston cylinder 3 on the side away from the booster cylinder 1, a second liquid inlet pipe 41 and a second liquid outlet pipe 42 are provided on the side away from the booster cylinder 1 of the second piston cylinder 4, the second liquid inlet pipe 41 has the same structure as the first liquid inlet pipe 31, the second liquid outlet pipe 42 has the same structure as the first liquid outlet pipe 32, a one-way valve is provided on the liquid inlet pipe and the liquid outlet pipe, and when working, the hydraulic oil is firstly passed through the first connecting pipe 13 The hydraulic oil in the right chamber 12 is discharged through the second connecting pipe 14, and the first piston rod 21 moves with the valve core 2. The cavity in the first piston cylinder 3 becomes larger, and the one-way valve on the first liquid inlet pipe 31 opens to suck in low-pressure liquid. The second piston rod 22 moves with the valve core 2. The low-pressure liquid originally filled in the second piston cylinder 4 is squeezed to form high-pressure liquid. The one-way valve in the second liquid outlet pipe 42 opens to discharge the high-pressure liquid. Then, the hydraulic oil is pumped into the right chamber 12 through the second connecting pipe 14, and the valve core 2 is pushed toward the left chamber 11. The left chamber 1 The hydraulic oil in 1 is discharged through the first connecting pipe 13, the second piston rod 22 moves with the valve core 2, the cavity in the second piston cylinder 4 becomes larger, the one-way valve on the second liquid inlet pipe 41 opens, and the low-pressure liquid is sucked in. The first piston rod 21 moves with the valve core 2, and the low-pressure liquid originally filled in the first piston cylinder 3 is squeezed to form a high-pressure liquid. The one-way valve in the first liquid outlet pipe 32 opens to discharge the high-pressure liquid. The high-pressure liquid can be continuously provided during the reciprocating movement of the valve core 2. Through two-way pressurization, the boosting efficiency of the boosting pump is improved, the service life of the boosting cylinder 1 and the piston is improved, and the vibration of the boosting cylinder 1 is reduced.

[0027] Reference Figure 2-Figure 4 : The first liquid inlet pipe 31 and the first liquid outlet pipe 32 are threadedly connected to the first piston cylinder 3, and the second liquid inlet pipe 41 and the second liquid outlet pipe 42 are threadedly connected to the second piston cylinder 4.

[0028] By threading the liquid inlet pipe and the liquid outlet pipe with the piston cylinder, it is easy to install and disassemble the liquid inlet pipe and the liquid outlet pipe, thereby facilitating the repair and replacement of the liquid inlet pipe and the liquid outlet pipe, thereby increasing the service life of the booster pump.

[0029] Reference Figure 2-Figure 4 : The first liquid inlet pipe 31 is provided with a first thick tube body 311, a first thin tube body 312 and a first one-way flow component 313, and the second liquid inlet pipe 41 has the same structure as the first liquid inlet pipe 31; the first liquid outlet pipe 32 is provided with a second thick tube body 321, a second thin tube body 322 and a second one-way flow component 323, and the second liquid outlet pipe 42 has the same structure as the first liquid outlet pipe 32; the first thick tube body 311 is connected to the first thin tube body 312; the second thick tube body 321 is connected to the second thin tube body 322.

[0030] The bottom of the second capillary body 322 is connected to the first piston cylinder 3, the second thick tube body 321 is arranged at the top of the second capillary body 322, the second one-way flow component 323 is arranged in the second thick tube body 321, and the second one-way flow component 323 is used for the liquid to flow unidirectionally from the second capillary body 322 to the second thick tube body 321, so that the high-pressure liquid is discharged from the first liquid outlet pipe 32, the top of the first thick tube body 311 is connected to the first piston cylinder 3, the first capillary body 312 is arranged at the bottom of the first thick tube body 311, and the first one-way flow component 313 is used for the liquid to flow unidirectionally from the first capillary body 312 to the first thick tube body 311, so that the low-pressure liquid enters from the first liquid inlet pipe 31.

[0031] Reference Figure 3 and Figure 4 : The first unidirectional flow component 313 includes a first spring 3131 and a first steel ball 3132; the first spring 3131 is arranged between the first steel ball 3132 and the first thick tube body 311, the first steel ball 3132 is arranged above the first thin tube body 312, and the diameter of the first steel ball 3132 is greater than the inner diameter of the first thin tube body 312; the second unidirectional flow component 323 includes a second spring 3231 and a second steel ball 3232; the second spring 3231 is arranged between the second steel ball 3232 and the second thick tube body 321, the second steel ball 3232 is arranged above the second thin tube body 322, and the diameter of the second steel ball 3232 is greater than the inner diameter of the second thin tube body 322.

[0032] The first steel ball 3132 is arranged at the connection between the first thin tube body 312 and the first thick tube body 311. The diameter of the first steel ball 3132 is larger than that of the first thin tube body 312, so that the first steel ball 3132 blocks the first thin tube body 312 under the push of the first spring 3131. The diameter of the first steel ball 3132 is smaller than that of the first thick tube body 311, so that after the first steel ball 3132 is pushed away by the low-pressure liquid, the low-pressure liquid enters the first piston cylinder 3. The second steel ball 3232 is arranged at the connection between the second thin tube body 322 and the second thick tube body 321. The diameter of the second steel ball 3232 is larger than that of the second thin tube body 322, so that the second steel ball 3232 blocks the second thin tube body 322 under the push of the second spring 3231. The diameter of the second steel ball 3232 is smaller than that of the second thick tube body 321, so that after the second steel ball 3232 is pushed away by the high-pressure liquid, the high-pressure liquid is discharged from the first piston cylinder 3.

[0033] Reference Figure 3 and Figure 4 : The first one-way flow component 313 is also provided with a first sealing ring 3133; the first sealing ring 3133 is arranged between the first steel ball 3132 and the first capillary body 312; the second one-way flow component 323 is also provided with a second sealing ring 3233; the second sealing ring 3233 is arranged between the second steel ball 3232 and the second capillary body 322.

[0034] The two sides of the first sealing ring 3133 respectively abut the first steel ball 3132 and the first capillary body 312, and the first sealing ring 3133 is used to improve the sealing effect of the first steel ball 3132 on the first capillary body 312. The two sides of the second sealing ring 3233 respectively abut the second steel ball 3232 and the second capillary body 322, and the second sealing ring 3233 is used to improve the sealing effect of the second steel ball 3232 on the second capillary body 322.

[0035] Reference Figure 5 The booster cylinder 1 comprises a cylinder body 15 and a first side plate 16; openings are provided on both sides of the cylinder body 15, and the first side plate 16 has two and is respectively provided on both sides of the cylinder body 15, and the first side plate 16 is fixedly connected to the cylinder body 15 by connecting bolts.

[0036] The cylinder body 15 and the first side plate 16 can be easily installed and disassembled by connecting the bolts, thereby facilitating the maintenance and replacement of the booster pump.

[0037] Reference Figure 6 : A second side plate 161 is provided on one side of the first side plate 16; the second side plate 161 is used to fix the first piston cylinder 3 and the second piston cylinder 4, and the second side plate 161 is fixedly connected to the first side plate 16 by connecting bolts.

[0038] The second side plate 161 is fixedly connected to the first side plate 16 by connecting bolts. The second side plate 161 is used to fix the first piston cylinder 3 and the second piston cylinder 4, so as to facilitate installation and disassembly of the first piston cylinder 3 and the second piston cylinder 4.

[0039] Reference Figure 6 and Figure 7 : A limiting groove 1611 is provided on the inner side of the second side plate 161; a first limiting block 33 is provided on the first piston cylinder 3 at a position corresponding to the limiting groove 1611; a second limiting block 43 is provided on the second piston cylinder 4 at a position corresponding to the limiting groove 1611.

[0040] The first limiting block 33 and the second limiting block 43 are respectively engaged with the limiting grooves 1611 on the second side plates 161 on the two first side plates 16 , so that the second side plates 161 fix the first piston cylinder 3 and the second piston cylinder 4 .

[0041] The above embodiments only express one or several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the attached claims.

Claims

1. A bidirectional high-pressure pump, comprising a booster cylinder (1), a piston plate, a first piston cylinder (3) and a second piston cylinder (4), It is characterized in that The valve core (2) is arranged in the boosting cylinder (1), and the valve core (2) divides the boosting cylinder (1) into a left chamber (11) and a right chamber (12); The first piston cylinder (3) and the second piston cylinder (4) are respectively arranged on both sides of the booster cylinder (1), the first piston cylinder (3) is connected to the left chamber (11), and the second piston cylinder (4) is connected to the right chamber (12); A first piston rod (21) and a second piston rod (22) are provided on both sides of the valve core (2); the first piston rod (21) is slidably matched with the first piston cylinder (3), and the second piston rod (22) is slidably matched with the second piston cylinder (4); The first piston cylinder (3) is provided with a first liquid inlet pipe (31) and a first liquid outlet pipe (32), and the second piston cylinder (4) is provided with a second liquid inlet pipe (41) and a second liquid outlet pipe (42); The boost cylinder (1) is also provided with a first connecting pipe (13) and a second connecting pipe (14); the first connecting pipe (13) is connected to the left chamber (11), and the second connecting pipe (14) is connected to the right chamber (12).

2. A bidirectional high-pressure pump according to claim 1, It is characterized in that The first liquid inlet pipe (31) and the first liquid outlet pipe (32) are threadedly connected to the first piston cylinder (3), and the second liquid inlet pipe (41) and the second liquid outlet pipe (42) are threadedly connected to the second piston cylinder (4).

3. A bidirectional high-pressure pump according to claim 1, It is characterized in that The first liquid inlet pipe (31) is provided with a first thick tube body (311), a first thin tube body (312) and a first unidirectional flow component (313), and the second liquid inlet pipe (41) has the same structure as the first liquid inlet pipe (31); The first liquid outlet pipe (32) is provided with a second thick tube body (321), a second thin tube body (322) and a second unidirectional flow component (323), and the structure of the second liquid outlet pipe (42) is the same as that of the first liquid outlet pipe (32); The first thick tube body (311) is connected to the first thin tube body (312); The second thick tube body (321) is connected to the second thin tube body (322).

4. A bidirectional high-pressure pump according to claim 3, It is characterized in that The first one-way flow component (313) includes a first spring (3131) and a first steel ball (3132); The first spring (3131) is arranged between the first steel ball (3132) and the first thick tube (311), the first steel ball (3132) is arranged above the first thin tube (312), and the diameter of the first steel ball (3132) is greater than the inner diameter of the first thin tube (312); The second one-way flow component (323) includes a second spring (3231) and a second steel ball (3232); The second spring (3231) is arranged between the second steel ball (3232) and the second thick tube (321), the second steel ball (3232) is arranged above the second thin tube (322), and the diameter of the second steel ball (3232) is greater than the inner diameter of the second thin tube (322).

5. A bidirectional high-pressure pump according to claim 4, It is characterized in that The first one-way flow component (313) is also provided with a first sealing ring (3133); The first sealing ring (3133) is arranged between the first steel ball (3132) and the first capillary body (312); The second one-way flow component (323) is also provided with a second sealing ring (3233); The second sealing ring (3233) is arranged between the second steel ball (3232) and the second capillary body (322).

6. A bidirectional high-pressure pump according to claim 1, It is characterized in that The boost cylinder (1) comprises a cylinder body (15) and a first side plate (16); Openings are arranged on both sides of the cylinder body (15). Two first side plates (16) are respectively arranged on both sides of the cylinder body (15). The first side plates (16) are fixedly connected to the cylinder body (15) via connecting bolts.

7. A bidirectional high-pressure pump according to claim 6, It is characterized in that A second side plate (161) is provided on one side of the first side plate (16); The second side plate (161) is used to fix the first piston cylinder (3) and the second piston cylinder (4), and the second side plate (161) is fixedly connected to the first side plate (16) via connecting bolts.

8. A bidirectional high-pressure pump according to claim 7, It is characterized in that A limiting groove (1611) is provided on the inner side of the second side plate (161); A first limiting block (33) is provided on the first piston cylinder (3) at a position corresponding to the limiting groove (1611); A second limiting block (43) is provided on the second piston cylinder (4) at a position corresponding to the limiting groove (1611).

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