Two-stage high-pressure pump capable of being switched between series connection and parallel connection

Abstract

The utility model provides a series connection and parallel connection switchable two-stage high-pressure pump which comprises a shell, a driving assembly is assembled in the shell, a communicated plunger component is fixedly installed on one side of the shell, a butt joint assembly is installed on the driving assembly in a butt joint mode, the driving assembly is assembled and connected with the plunger component through the butt joint assembly, and the plunger component is connected with the driving assembly through the butt joint assembly. A positioning component is fixedly installed at the top of the plunger component, a first guiding and conveying assembly and a second guiding and conveying assembly are installed at the ends of the plunger component in a butt joint mode, and connecting pipes connected with each other are assembled between the first guiding and conveying assembly and the second guiding and conveying assembly. The high-pressure pumps can be switched to work according to actual conditions through the connecting pipe between the first guiding and conveying assembly and the second guiding and conveying assembly, a traditional parallel connection state is switched to a series connection state, the high-pressure pumps can be differentiated and independently work and can be combined to achieve the secondary pressurization effect, and the working efficiency of the high-pressure pumps is improved. And the function and the operation range of the high-pressure pump are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-pressure pumps, in particular to a two-stage high-pressure pump with switchable series and parallel connections. Background Art

[0002] A two-stage high-pressure pump is a mechanical device used to generate high-pressure fluid. It gradually increases the pressure of the fluid through two consecutive pump sections (or pump stages). Each pump section is responsible for a part of the pressurization task. Through this step-by-step pressurization method, the two-stage high-pressure pump can gradually increase the pressure of the fluid to a very high level. This design enables the two-stage high-pressure pump to provide stable high-pressure output within a relatively wide operating range and is suitable for application scenarios that require high pressure.

[0003] From the above content, the actual situation of the two-stage high-pressure pump is known. However, considering its performance during operation, there are still deficiencies: the existing two-stage high-pressure pumps cannot change their operating states according to the actual external operating conditions during operation. Traditional two-stage high-pressure pumps generally can only switch between single-stage and double-stage by opening and closing, but the drive components inside the pump body still operate, increasing energy consumption and unable to ensure the operation and stop of the corresponding drive components when switching between single-stage and double-stage. At the same time, during the operation of the high-pressure pump, if secondary pressurization is required, it is necessary to use a pump or external pipe fittings to achieve the series connection effect of the pump itself, and the pump body cannot be switched autonomously.

[0004] Therefore, this application proposes a two-stage high-pressure pump with switchable series and parallel connections. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a two-stage high-pressure pump with switchable series and parallel connections, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the utility model is realized through the following technical solutions:

[0007] A series-parallel switchable double-stage high-pressure pump, including a housing, support feet are fixedly installed at the bottom of the housing, a driving component is assembled inside the housing, a communicating plunger component is fixedly installed on one side of the housing, a docking component is docked and installed on the driving component, the driving component is assembled and connected to the plunger component through the docking component, a positioning component is fixedly installed at the top of the plunger component and extends into the plunger component and cooperates with the docking component, the ends of the plunger component are respectively docked and installed with a first conveying component and a second conveying component, and a connecting pipe connecting the first conveying component and the second conveying component is assembled between them; the connecting pipe includes a third one-way valve, a second electric control valve, a first electric control valve, and a three-way pipe. A three-way pipe is docked and installed at the top of the second conveying component, a connecting pipe connected to the positioning component is docked and installed on the three-way pipe, a second electric control valve is docked and installed at the top end of the connecting pipe, and a third one-way valve is docked and installed at the bottom end; the docking component includes a connecting plate, a docking head, a guide plate, a docking socket, and a first spring member. The driving end of the driving component is docked and installed with a connecting plate, two groups of docking sockets are docked and installed on one side of the connecting plate, and the connecting plate is rotatably connected to the docking sockets. Two groups of guide plates are docked and installed inside the plunger component, a docking head is docked and installed on one side of the guide plate, and the docking head is snap-fitted with the docking socket. A first spring member connected to the plunger component is docked and installed on the other side of the guide plate.

[0008] Further, the plunger component includes an installation cover body, a first plunger kit, a plunger rod, and a plunger piece. A communicating installation cover body is fixedly installed on one side of the housing, a first plunger kit and a second plunger kit are docked and installed inside the installation cover body, a plunger rod extending into the first plunger kit and the second plunger kit is docked and installed on one side of the guide plate, the plunger rod penetrates through the first spring member, and a plunger piece is docked and installed at the end of the plunger rod.

[0009] Further, the first conveying component includes a first conveying pipe, a first one-way outlet valve, a sub-pipe, a first one-way inlet valve, and a first liquid inlet. A first conveying pipe is docked and installed at the port of the second plunger kit, a first one-way outlet valve is docked and installed at the top of the first conveying pipe, and a sub-pipe is docked and installed at the top of the first one-way outlet valve. A first one-way inlet valve is docked and installed at the bottom of the first conveying pipe, and a first liquid inlet is docked and installed at the bottom of the first one-way inlet valve.

[0010] Further, the second conveying component includes a second conveying pipe, a second liquid inlet, a second one-way outlet valve, and a second one-way inlet valve. A second conveying pipe is docked and installed at the port of the first plunger kit, a second one-way inlet valve is docked and installed at the bottom end of the second conveying pipe, and a second liquid inlet is docked and installed at the bottom of the second one-way inlet valve. A second one-way outlet valve is docked and installed at the top of the second conveying pipe.

[0011] Further, the positioning component includes a mounting sleeve, an electric push rod, a clamping joint, and a second spring member. The mounting sleeve is fixedly installed at the top of the mounting cover body. The electric push rod is fixedly installed at the top of the mounting sleeve. The output end of the electric push rod extends into the mounting sleeve and is butt-jointed with the second spring member. The bottom of the second spring member is butt-jointed with a clamping joint extending into the mounting cover body.

[0012] Further, the docking component further includes a second motor and a clamping interface. The clamping interface is arranged at the top of the guide plate and is in docking cooperation with the clamping joint. A second motor is fixedly installed on one side of the connecting plate, and the output shaft of the second motor is installed and connected with the docking socket head.

[0013] Further, the driving component includes a first motor, a collar, a driving cam, and a driving connecting rod. The first motor is fixedly installed at the top of the housing. The output shaft of the first motor extends into the housing and is butt-jointed with the driving cam. A collar in transmission cooperation is sleeved on the driving cam. A driving connecting rod is fixedly installed on one side of the collar. The collar is assembled and connected with the connecting plate through the driving connecting rod.

[0014] The utility model provides a two-stage high-pressure pump with serial-parallel switchable. Compared with the prior art, it has the following beneficial effects:

[0015] Through the connecting pipe between the first feeding component and the second feeding component, the high-pressure pump can switch operations according to actual conditions, switching from the traditional parallel state to the series state, enabling the high-pressure pump to not only perform differentiated independent operations but also merge to achieve the effect of secondary pressurization, improving the function and operation scope of the high-pressure pump;

[0016] Through the mutual cooperation between the docking component and the positioning component, the high-pressure pump can be quickly switched from single-stage to double-stage, enabling it to not only meet the operation requirements of the double-stage but also switch to single-stage to reduce its own losses, meeting different operation environments and extending the operation life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 Shows the overall assembly structure schematic diagram of the two-stage high-pressure pump of the present invention;

[0019] Figure 2 Shows the assembly structure schematic diagram of the feeding component and the connecting pipe of the present invention;

[0020] Figure 3 Shows the internal structure schematic diagram of the double-stage high-pressure pump of the present utility model;

[0021] Figure 4 Shows the assembly structure schematic diagram of the docking component and the plunger component of the present utility model;

[0022] Figure 5 Shows the assembly structure schematic diagram of the docking component and the positioning component of the present utility model;

[0023] As shown in the figure: 1. Housing; 11. Support feet; 2. Plunger component; 21. Installation cover; 22. First plunger kit; 23. Plunger rod; 24. Plunger piece; 25. Second plunger kit; 3. First delivery component; 31. First delivery pipe; 32. First one-way outlet valve; 33. Sub-pipe; 34. First one-way inlet valve; 35. First liquid inlet; 4. Second delivery component; 41. Second delivery pipe; 42. Second liquid inlet; 43. Second one-way outlet valve; 44. Second one-way inlet valve; 5. Positioning component; 51. Installation sleeve; 52. Electric push rod; 53. Clamping joint; 54. Second spring piece; 6. Driving component; 61. First motor; 62. Collar; 63. Driving cam; 64. Driving connecting rod; 7. Connecting pipe; 71. Third one-way valve; 72. Second electric control valve; 73. First electric control valve; 74. Three-way pipe; 8. Docking component; 81. Second motor; 82. Connecting plate; 83. Docking head; 84. Clamping interface; 85. Guide plate; 86. Docking socket; 87. First spring piece. Specific embodiments

[0024] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Embodiment 1

[0026] To solve the technical problems in the background art, the following series-parallel switchable double-stage high-pressure pump is given:

[0027] Combined with Figures 1 - 5As shown in the figure, the double-stage high-pressure pump with switchable series and parallel connections provided by the present utility model includes a housing 1. A support foot 11 is fixedly installed at the bottom of the housing 1. A drive assembly 6 is assembled inside the housing 1. A plunger component 2 is fixedly installed on one side of the housing 1 in a communicating manner. A docking assembly 8 is docked and installed on the drive assembly 6. The drive assembly 6 is assembled and connected to the plunger component 2 through the docking assembly 8. A positioning component 5 is fixedly installed at the top of the plunger component 2, and the positioning component 5 extends into the plunger component 2 and cooperates with the docking assembly 8. The ends of the plunger component 2 are respectively docked and installed with a first delivery assembly 3 and a second delivery assembly 4. A connecting pipe 7 that is connected to each other is assembled between the first delivery assembly 3 and the second delivery assembly 4;

[0028] During this period, the support foot 11 stably supports the housing 1. The drive assembly 6 drives the plunger component 2 to promote the plunger component 2 to perform a pressurization operation, realizing the pressurized delivery of the medium entering the first delivery assembly 3 and the second delivery assembly 4. Through the connecting pipe 7 between the first delivery assembly 3 and the second delivery assembly 4, the high-pressure pump can be switched according to the actual situation, switching from the traditional parallel state to the series state, enabling the high-pressure pump to not only perform differentiated independent operations but also be combined to achieve the effect of secondary pressurization, improving the function and operation scope of the high-pressure pump. Through the mutual cooperation between the docking assembly 8 and the positioning component 5, the drive assembly 6 can switch between the docking and separation states of the two plunger components 2, so that the high-pressure pump can automatically switch between single-stage and double-stage, enabling it to not only meet the double-stage operation requirements but also be switched to single-stage to reduce its own losses, meeting different operating environments.

[0029] The connecting pipe 7 includes a third one-way valve 71, a second electric control valve 72, a first electric control valve 73, and a three-way pipe 74. The three-way pipe 74 is docked and installed at the top of the second delivery assembly 4. The connecting pipe 7 connected to the positioning component 5 is docked and installed on the three-way pipe 74. The second electric control valve 72 is docked and installed at the top end of the connecting pipe 7, and the third one-way valve 71 is docked and installed at the bottom end. The docking assembly 8 includes a connecting plate 82, a docking head 83, a guide plate 85, a docking sleeve 86, and a first spring member 87. The driving end of the drive assembly 6 is docked and installed with the connecting plate 82. Two docking sleeves 86 are docked and installed on one side of the connecting plate 82, and the connecting plate 82 is rotatably connected to the docking sleeve 86. Two guide plates 85 are docked and installed inside the plunger component 2. The docking head 83 is docked and installed on one side of the guide plate 85, and the docking head 83 is snap-fitted with the docking sleeve 86. The first spring member 87 connected to the plunger component 2 is docked and installed on the other side of the guide plate 85.

[0030] During this period, it is driven and operated by the driving component 6, and the connecting plate 82 synchronously drives the components at the rear to move synchronously, realizing the two-stage operation of the plunger component 2. When a stage change is required, the docking socket 86 is rotated to prompt the separation of the docking head 83 from the component it enters. Therefore, when pushing again, the guide plate 85 on the docking head 83 will be engaged with the positioning component 5, realizing the complete separation between the docking socket 86 and the docking head 83. Then, the corresponding plunger component 2 cannot move and enters a stop state. When resetting is required, the restriction on the docking head 83 is released by the positioning component 5. Under the elastic force of the first spring member 87, the docking head 83 is docked with the docking socket 86 again, and enters the engaged state by the rotation of the docking socket 86 to complete the connection, realizing low-energy consumption stage change. When secondary pressurization is required, the opening and closing of the second solenoid valve 72 and the first solenoid valve 73 are coordinated, and the conversion is carried out by using the three-way pipe 74 to guide the fluid in the second delivery component 4 into the first delivery component 3. At that time, the fluid pressure in the first delivery component 3 will increase again, also achieving the series effect.

[0031] Embodiment 2

[0032] As Figure 1 and Figure 2 shown, on the basis of the above embodiment, the following content is further given in this embodiment:

[0033] In this embodiment, the plunger component 2 includes a mounting cover 21, a first plunger kit 22, a plunger rod 23, and a plunger 24. A connected mounting cover 21 is fixedly installed on one side of the housing 1. The first plunger kit 22 and the second plunger kit 25 are docked and installed inside the mounting cover 21. One side of the guide plate 85 is docked and installed with a plunger rod 23 extending into the first plunger kit 22 and the second plunger kit 25. The plunger rod 23 passes through the first spring member 87, and a plunger 24 is docked and installed at the end of the plunger rod 23.

[0034] The plunger rod 23 and the plunger 24 in the first plunger kit 22 and the second plunger kit 25 can operate synchronously under the driving action to realize two-stage operation. And corresponding components are respectively assembled at the ports of the first plunger kit 22 and the second plunger kit 25 to avoid interference between the two.

[0035] In this embodiment, the first delivery component 3 includes a first delivery pipe 31, a first one-way out valve 32, a sub-pipe 33, a first one-way in valve 34, and a first liquid inlet 35. The port of the second plunger kit 25 is docked and installed with a first delivery pipe 31. The top of the first delivery pipe 31 is docked and installed with a first one-way out valve 32, and a sub-pipe 33 is docked and installed at the top of the first one-way out valve 32. The bottom of the first delivery pipe 31 is docked and installed with a first one-way in valve 34, and a first liquid inlet 35 is docked and installed at the bottom of the first one-way in valve 34.

[0036] During this period, the external medium enters the first delivery pipe 31 through the first one-way inlet valve 34 at the first liquid inlet 35, and is pressurized along with the plunger in the corresponding plunger kit, so as to push the medium out again through the first one-way outlet valve 32 and export it through the pipe group connected to the auxiliary pipe 33.

[0037] In this embodiment, the second delivery assembly 4 includes a second delivery pipe 41, a second liquid inlet 42, a second one-way outlet valve 43, and a second one-way inlet valve 44. The port of the first plunger kit 22 is butt - mounted with the second delivery pipe 41. The bottom end of the second delivery pipe 41 is butt - mounted with the second one-way inlet valve 44, and the bottom of the second one-way inlet valve 44 is butt - mounted with the second liquid inlet 42. The top of the second delivery pipe 41 is butt - mounted with the second one-way outlet valve 43.

[0038] During this period, the external medium enters the second delivery pipe 41 through the second one-way inlet valve 44 at the second liquid inlet 42, and is pressurized along with the plunger in the corresponding plunger kit, so as to push the medium out again through the second one-way outlet valve 43 on the second delivery pipe 41 and send it into the tee 74 for splitting operation.

[0039] Embodiment Three

[0040] As Figures 1 - 5 shown, on the basis of the above - mentioned embodiment, this embodiment further gives the following content:

[0041] In this embodiment, the positioning component 5 includes a mounting sleeve 51, an electric push rod 52, a clamping joint 53, and a second spring member 54. The top of the mounting sleeve 21 is fixedly installed with the mounting sleeve 51. The top of the mounting sleeve 51 is fixedly installed with the electric push rod 52, and the output end of the electric push rod 52 extends into the mounting sleeve 51 and is butt - mounted with the second spring member 54. The bottom of the second spring member 54 is butt - mounted with the clamping joint 53 extending into the mounting sleeve 21.

[0042] During this period, when the high - pressure pump needs to switch the operation level, the operator can start one of the two groups of positioning components 5;

[0043] Start the electric push rod 52. The driving end of the electric push rod 52 drives the clamping joint 53 to move up and down through the second spring member 54. When rising, it exits the clamping state, and when descending, it enters the clamping state. After descending, the clamping joint 53 is used to complete the clamping restriction on the docking assembly 8.

[0044] In this embodiment, the docking assembly 8 further includes a second motor 81 and a card interface 84. The card interface 84 is provided at the top of the guide plate 85, and the card interface 84 is in docking cooperation with the card joint 53. A second motor 81 is fixedly installed on one side of the connecting plate 82, and the output shaft of the second motor 81 is installed and connected to the docking socket 86.

[0045] By combining the above content, during this period, the second motor 81 is used to drive the docking socket 86 to rotate, so that the docking socket 86 completes the mutual docking with the docking head 83, and the rotation is to complete the clamping or release of the clamping with the docking head 83;

[0046] During this period, as the guide plate 85 is reciprocally driven by the driving link 64, the driving operation of the plunger rod 23 is completed. When the card joint 53 enters the clamped state, the corresponding guide plate 85 will complete the docking with the card interface 84 during the reciprocating motion. At this time, it is necessary to ensure that the docking socket 86 restricts the docking head 83, so that the two can be separated at the moment of clamping.

[0047] In this embodiment, the driving assembly 6 includes a first motor 61, a collar 62, a driving cam 63, and a driving link 64. The first motor 61 is fixedly installed on the top of the housing 1. The output shaft of the first motor 61 extends into the housing 1 and is docked and installed with the driving cam 63. A transmission-fitted collar 62 is sleeved on the driving cam 63. A driving link 64 is fixedly installed on one side of the collar 62, and the collar 62 is assembled and connected to the connecting plate 82 through the driving link 64.

[0048] During this period, when the first motor 61 is started, the output shaft of the first motor 61 will drive the driving cam 63 to rotate. Since the driving cam 63 and the collar 62 are in a rotational relationship, the collar 62 will swing under the influence of the driving cam 63, and then the driving link 64 will be driven, so that the driving link 64 drives the connecting plate 82 to complete the driving operation of driving the plunger rod 23.

[0049] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0050] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A two-stage high-pressure pump with switchable series and parallel connections, characterized in that: It includes a housing, support feet are fixedly installed at the bottom of the housing, a drive assembly is assembled inside the housing, a connected plunger component is fixedly installed on one side of the housing, a docking component is docked and installed on the drive assembly, the drive assembly is assembled and connected to the plunger component through the docking component, a positioning component is fixedly installed at the top of the plunger component, and the positioning component extends into the plunger component and cooperates with the docking component to work. The ends of the plunger component are respectively docked and installed with a first conveying component and a second conveying component, and a connecting pipe that is interconnected is assembled between the first conveying component and the second conveying component; The connecting pipe includes a third one-way valve, a second electric control valve, a first electric control valve, and a three-way pipe. The top of the second conveying component is docked and installed with a three-way pipe, a connecting pipe connected to the positioning component is docked and installed on the three-way pipe, a second electric control valve is docked and installed at the top end of the connecting pipe, and a third one-way valve is docked and installed at the bottom end; The docking component includes a connecting plate, a docking head, a guide plate, a docking socket, and a first spring member. The driving end of the drive assembly is docked and installed with a connecting plate, two docking sockets are docked and installed on one side of the connecting plate, and the connecting plate is rotatably connected to the docking socket. Two guide plates are docked and installed inside the plunger component, a docking head is docked and installed on one side of the guide plate, and the docking head is snap-fitted with the docking socket. A first spring member connected to the plunger component is docked and installed on the other side of the guide plate.

2. The series-parallel switchable two-stage high-pressure pump according to claim 1, characterized in that: The plunger component includes an installation cover body, a first plunger kit, a plunger rod, and a plunger piece. An interconnected installation cover body is fixedly installed on one side of the housing. A first plunger kit and a second plunger kit are docked and installed inside the installation cover body. A plunger rod extending into the first plunger kit and the second plunger kit is docked and installed on one side of the guide plate. The plunger rod penetrates through the first spring member, and a plunger piece is docked and installed at the end of the plunger rod.

3. The series-parallel switchable two-stage high-pressure pump according to claim 2, wherein: The first conveying component includes a first conveying pipe, a first one-way out valve, a sub-pipe, a first one-way in valve, and a first liquid inlet. The port of the second plunger kit is docked and installed with a first conveying pipe, a first one-way out valve is docked and installed at the top of the first conveying pipe, and a sub-pipe is docked and installed at the top of the first one-way out valve. A first one-way in valve is docked and installed at the bottom of the first conveying pipe, and a first liquid inlet is docked and installed at the bottom of the first one-way in valve.

4. The series-parallel switchable two-stage high-pressure pump according to claim 3, characterized in that: The second conveying component includes a second conveying pipe, a second liquid inlet, a second one-way out valve, and a second one-way in valve. The port of the first plunger kit is docked and installed with a second conveying pipe, a second one-way in valve is docked and installed at the bottom end of the second conveying pipe, and a second liquid inlet is docked and installed at the bottom of the second one-way in valve. A second one-way out valve is docked and installed at the top of the second conveying pipe.

5. The series-parallel switchable two-stage high-pressure pump according to claim 4, wherein: The positioning component includes an installation sleeve, an electric push rod, a clamping head, and a second spring member. An installation sleeve is fixedly installed at the top of the installation cover body, an electric push rod is fixedly installed at the top of the installation sleeve, and the output end of the electric push rod extends into the installation sleeve and is docked and installed with a second spring member. A clamping head extending into the installation cover body is docked and installed at the bottom of the second spring member.

6. The series-parallel switchable two-stage high-pressure pump according to claim 5, characterized in that: The docking component further includes a second motor and a card interface. A card interface is provided at the top of the guide plate, and the card interface is in docking fit with the card joint. A second motor is fixedly installed on one side of the connecting plate, and the output shaft of the second motor is installed and connected to the docking socket head.

7. The series-parallel switchable two-stage high-pressure pump according to claim 6, characterized in that: The driving component includes a first motor, a shaft collar, a driving cam, and a driving connecting rod. A first motor is fixedly installed at the top of the housing. The output shaft of the first motor extends into the housing and is docked and installed with a driving cam. A shaft collar in transmission fit is sleeved on the driving cam. A driving connecting rod is fixedly installed on one side of the shaft collar, and the shaft collar is assembled and connected to the connecting plate through the driving connecting rod.

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