CN216477717U - Backpack type double-acting electric pump - Google Patents
Backpack type double-acting electric pump Download PDFInfo
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- CN216477717U CN216477717U CN202123056164.0U CN202123056164U CN216477717U CN 216477717 U CN216477717 U CN 216477717U CN 202123056164 U CN202123056164 U CN 202123056164U CN 216477717 U CN216477717 U CN 216477717U
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Abstract
The application discloses two effect electric pump of backpack includes: a housing provided with a bearing assembly; the composite plunger pair is positioned in the shell and comprises a high-pressure plunger pump, a low-pressure plunger pump and a change-over valve which are integrally arranged; the high-pressure plunger pump is provided with a first rod body, a first liquid inlet and a first liquid outlet, and the low-pressure plunger pump is provided with a second rod body, a second liquid inlet and a second liquid outlet; a liquid outlet flow passage of the composite plunger pair is connected with the first liquid outlet and the second liquid outlet, and the change-over valve is arranged on the liquid outlet flow passage; the motor is positioned in the shell, comprises an output shaft and is used for driving the first rod body and the second rod body; the two oil bags are positioned in the shell and are respectively communicated with the first liquid inlet and the second liquid inlet; and the tool interface is positioned outside the shell, is provided with a third liquid inlet and a third liquid outlet which are communicated with the liquid outlet flow channel and is used for connecting a tool. The application provides a two effect electric pump of backpack can conveniently carry, and can save installation space, enlarge the range of application, can also avoid leaking in oil leak and the pressure.
Description
Technical Field
The application relates to the technical field of power pumps, in particular to a backpack type double-acting electric pump.
Background
The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.
The electric pump, namely the pump that can use the electricity to drive, can be applied to the broken trade of tearing open of fire control hydraulic pressure. The electric hydraulic pump is mainly applied to emergency rescue, including rescue after fire fighting, rescue after earthquake, rescue of road traffic accidents and other emergency disasters, and provides power support for breaking and dismantling tools.
Existing electrically powered hydraulic pumps are either stationary or portable and are not easily portable and typically include a secondary pump consisting of a high pressure plunger and a low pressure plunger. The two plungers simultaneously deliver flow to the apparatus at relatively low operating pressures to make the apparatus operate more quickly. When the set pressure value is reached, the high-pressure plunger plugs the one-way valve assembly, so that the flow of the low-pressure plunger flows back to the oil tank. However, the power source of the secondary pump structure requires a large installation space, and a large number of sealing structures are required for installing each component, so that the power source loses working capacity if any one of the components fails.
It should be noted that the above background description is only for the convenience of clear and complete description of the technical solutions in the present specification and for the understanding of those skilled in the art. Such solutions are not considered to be known to the person skilled in the art merely because they have been set forth in the background section of the present specification.
SUMMERY OF THE UTILITY MODEL
The technical problem that this application mainly solved provides a two effect electric pump of backpack, can conveniently carry, and can save installation space, enlarge the range of application, can also avoid leaking in oil leak and the pressure.
In order to solve the technical problem, the application adopts a technical scheme that: there is provided a backpack double action electric pump comprising:
the device comprises a shell, a handle and a handle, wherein the shell is provided with a bearing component;
the composite plunger pair is positioned in the shell and comprises a high-pressure plunger pump, a low-pressure plunger pump and a conversion valve which are integrally arranged; the high-pressure plunger pump is provided with a first rod body, a first liquid inlet and a first liquid outlet, and the low-pressure plunger pump is provided with a second rod body, a second liquid inlet and a second liquid outlet; the diameter of the second rod body is larger than that of the first rod body, and the length of the second rod body is equal to that of the first rod body; the composite plunger pair is provided with a liquid outlet flow passage, the liquid outlet flow passage is connected with the first liquid outlet and the second liquid outlet, and the conversion valve is arranged on the liquid outlet flow passage;
the motor is positioned in the shell and comprises an output shaft, and the output shaft is used for driving the first rod body and the second rod body simultaneously;
the two oil bags are positioned in the shell and are respectively communicated with the first liquid inlet and the second liquid inlet;
and the tool interface is positioned outside the shell and is provided with a third liquid inlet and a third liquid outlet which are communicated with the liquid outlet flow channel, and the tool interface is used for connecting a tool.
Further, the motor and the oil sac are respectively located on two opposite sides of the composite plunger pair along a first direction, the tool interface is located on one side of the composite plunger pair along a second direction, and the first direction is perpendicular to the second direction.
Further, the backpack double-acting electric pump further comprises:
the switch handle is electrically connected with the motor and used for controlling the starting and stopping of the motor; the switch handle is connected with the shell through a connecting piece.
Further, the backpack double-acting electric pump further comprises:
and the battery is positioned outside the shell and used for supplying power to the motor.
Furthermore, the number of the batteries is at least two, and the batteries are located on one side, provided with the oil bag, of the shell along the first direction.
Further, the motor and the battery are electrically connected by a first circuit, the backpack double-acting electric pump further comprising:
and the power switch is positioned outside the shell and positioned on the first circuit and used for controlling the on-off of the first circuit.
Further, the backpack double-acting electric pump further comprises:
and the electric quantity display unit is positioned outside the shell and electrically connected with the battery and used for displaying the electric quantity of the battery.
Further, the backpack double-acting electric pump comprises a plurality of composite plunger pairs which are uniformly distributed along the circumferential direction of the output shaft.
Furthermore, the first rod body and the second rod body are arranged in parallel, and the first rod body and the output shaft are vertically arranged; the first rod body and the second rod body are arranged in an aligned mode.
Furthermore, the backpack type double-acting electric pump also comprises a pump body, and the composite plunger pair is arranged on the pump body; the opening of the oil sac is provided with a throat hoop, and the throat hoop is used for connecting the oil sac with the pump body.
Different from the prior art, the beneficial effects of the application are that: the backpack type double-acting electric pump provided by the embodiment of the application can be conveniently carried by arranging the backpack assembly; the high-pressure plunger pump, the low-pressure plunger pump and the conversion valve are integrally arranged, so that the installation space can be saved, and oil leakage and pressure internal leakage can be avoided; through setting up two oil sacs, can increase the oil reserve of this electric pump to enlarge the range of application of this electric pump, make electric pump oil volume more sufficient still save manufacturing cost.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Wherein:
fig. 1 is a schematic structural view of a backpack type double-acting electric pump provided in the present embodiment;
FIG. 2 is a cross-sectional view of the left side view of FIG. 1 taken along a first direction;
fig. 3 is a schematic structural view of another backpack type double-acting electric pump provided in the present embodiment;
fig. 4 is a schematic structural diagram of a composite plunger pair provided in this embodiment.
Description of reference numerals:
1. a high pressure plunger pump; 2. a low pressure plunger pump; 3. a liquid outlet flow passage; 31. a first stage; 32. a second stage; 4. a first valve body; 5. a second valve body; 6. a first rod body; 7. a second rod body; 8. a return spring; 9. a first mounting case; 10. a second mounting case; 11. a fourth valve body; 12. a fifth valve body; 13. a sixth valve body; 14. a motor; 15. an output shaft; 16. a housing; 17. an oil pocket; 18. a composite plunger pair; 19. a tool interface; 20. a pump body; 21. a switch handle; 22. a connecting member; 23. a battery; 24. a power switch; 25. an electric quantity display unit; 26. a hose clamp; x, a first direction; y, second direction.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Please refer to fig. 1 to 3. The embodiment of the application provides a backpack double-acting electric pump, which comprises a shell 16, a composite plunger pair 18, a motor 14, two oil bags 17 and a tool interface 19.
Wherein the housing 16 is provided with a piggyback assembly. The composite plunger pair 18 is located within the housing 16. The composite plunger pair 18 includes a high-pressure plunger pump 1, a low-pressure plunger pump 2, and a change-over valve, which are integrally provided. The high-pressure plunger pump 1 is provided with a first rod body 6, a first liquid inlet and a first liquid outlet. The low-pressure plunger pump 2 is provided with a second rod body 7, a second liquid inlet and a second liquid outlet. The diameter of the second rod 7 is larger than that of the first rod 6, and the length of the second rod 7 is equal to that of the first rod 6. The composite plunger pair 18 is provided with a liquid outlet flow passage 3, the liquid outlet flow passage 3 is connected with the first liquid outlet and the second liquid outlet, and the conversion valve is arranged on the liquid outlet flow passage 3. The motor 14 is located within the housing 16. The motor 14 comprises an output shaft 15, which output shaft 15 is adapted to simultaneously drive the first rod 6 and the second rod 7. Two oil bladders 17 are located within the housing 16. The two oil bags 17 are respectively communicated with the first liquid inlet and the second liquid inlet. The tool interface 19 is located outside the housing 16. The tool interface 19 has a third liquid inlet and a third liquid outlet communicated with the liquid outlet flow passage 3, and the tool interface 19 is used for connecting a tool.
The backpack type double-acting electric pump provided by the embodiment of the application can be conveniently carried by arranging the backpack assembly; the high-pressure plunger pump 1, the low-pressure plunger pump 2 and the change-over valve are integrally arranged, so that the installation space can be saved, and oil leakage and pressure internal leakage can be avoided; through setting up two oil bags 17, can increase the oil reserve of this electric pump to enlarge this electric pump's range of application, make electric pump oil capacity more sufficient still save manufacturing cost.
The shoulder strap unit of the present embodiment is not particularly limited, and may be a shoulder strap for being worn by both shoulders. The backpack assembly may be disposed on a surface of the housing 16 extending in the first direction X and having a larger area.
In the present embodiment, as shown in fig. 1 and 2, the motor 14 and the oil bladder 17 are respectively located on two opposite sides of the composite plunger pair 18 along the first direction X, and the tool interface 19 is located on one side of the composite plunger pair 18 along the second direction Y. Set up instrument interface 19 in the lateral wall of casing 16, be convenient for make instrument interface 19 connect other pipelines and equipment instrument, make things convenient for taking of this electric pump to move, reduced the damage risk, when this electric pump is used for connecting the rescue instrument, can provide very big facility for the rescue work. Wherein the first direction X may be perpendicular to the second direction Y. Specifically, in fig. 1, the first direction X is a vertical direction, and the second direction Y is a horizontal direction.
As shown in fig. 1, the backpack double-acting electric pump may further include a switch handle 21. The switch handle 21 is electrically connected with the motor 14 and used for controlling the start and stop of the motor 14. The switch handle 21 is connected to the housing 16 by a connector 22. The connecting member 22 may be a connecting rope, a connecting spring, or the like. The switch handle 21 and the motor 14 may be connected by wire or wirelessly.
As shown in fig. 3, the backpack double-acting electric pump may also include a battery 23 for powering the motor 14. Preferably, the battery 23 is located outside the housing 16, so that the battery 23 can be conveniently disassembled and assembled, and great convenience is provided for operation.
Specifically, at least two batteries 23 can increase the cruising ability of the electric pump. The battery 23 is located on the side of the housing 16 where the oil pocket 17 is provided, i.e., on the lower side of the housing 16, in the first direction X.
In the present embodiment, the motor 14 and the battery 23 may be electrically connected by a first circuit. The backpack, double-acting, electric pump may also include a power switch 24 located outside the housing 16. The power switch 24 is located on the first circuit and can control the on/off of the first circuit. The backpack double-acting electric pump may also include a charge display unit 25 located outside the housing 16. The power display unit 25 is electrically connected to the battery 23 for displaying the power of the battery 23.
As shown in fig. 1, both the power switch 24 and the power display unit 25 can be located above the housing 16 for the user to observe and operate. Wherein, switch 24 and switch lever 21 can play dual protection to the start-up of motor 14, and only when switch 24 and switch lever 21 all are in the on-state, this electric pump can just begin work, has guaranteed the security of operation.
In the present embodiment, the backpack double-acting electric pump may include a plurality of composite plunger pairs 18, and the plurality of composite plunger pairs 18 are uniformly distributed along the circumferential direction of the output shaft 15, thereby further improving the efficiency of the electric pump.
Specifically, the first rod body 6 and the second rod body 7 are arranged in parallel, and the first rod body 6 and the second rod body 7 are arranged in an aligned mode. The first rod 6 and the output shaft 15 are arranged vertically. Because the diameter of the second rod body 7 is greater than the diameter of the first rod body 6, the length of the second rod body 7 is equal to the length of the first rod body 6, and the first rod body 6 and the second rod body 7 are arranged in an aligned mode, so that the flow output by the high-pressure plunger pump 1 is smaller than the flow output by the low-pressure plunger pump 2.
Fig. 4 is a schematic structural view of the composite plunger pair 18. The change-over valve may include a first valve body 4 and a second valve body 5, the first valve body 4 is located in the liquid outlet flow passage 3, the second valve body 5 is communicated with the second liquid outlet, and the state of the second valve body 5 is opposite to the state of the first valve body 4. The switching valve may further include a third valve body (not shown) in communication with the first outlet port.
Specifically, when the pressure of the equipment connected with the tool interface 19 is lower than a first preset value, the second valve body 5 is closed, the first valve body 4 is opened, and the liquid of the second liquid outlet can flow into the equipment; when the pressure of the equipment connected with the tool interface 19 is higher than the first preset value, the second valve body 5 is opened, the first valve body 4 is closed, and the liquid of the second liquid outlet flows out of the second valve body 5 and cannot enter the equipment. When the pressure of the equipment is lower than a second preset value (the second preset value is larger than the first preset value), the third valve body is closed, and the liquid of the first liquid outlet can flow into the equipment; when the pressure of the equipment is higher than a second preset value, the third valve body is opened, and the liquid of the first liquid outlet flows out of the third valve body and cannot enter the equipment.
More specifically, the first liquid inlet (not shown) and the second liquid inlet (not shown) are oriented in the same direction, so that the structure of the electric pump can be optimized and the installation space thereof can be reduced. The first rod body 6 and the second rod body 7 can be provided with a return spring 8 along the axial direction, and the return spring is used for helping the first rod body 6 and the second rod body 7 to return. The high-pressure plunger pump 1 comprises a first mounting housing 9 and the low-pressure plunger pump 2 comprises a second mounting housing 10. First body of rod 6, first inlet and first liquid outlet are located first installation shell 9, and the second body of rod 7, second inlet and second liquid outlet are located second installation shell 10. First inlet and first liquid outlet are located the 6 axial one sides of the first body of rod, and second inlet and second liquid outlet are located the 7 axial one sides of the second body of rod, because the first body of rod 6 and the 7 alignment settings of the second body of rod, first inlet, first liquid outlet, second inlet and second liquid outlet are located the first body of rod 6 and the 7 same one side along the axial of the second body of rod respectively.
In the present embodiment, the first mounting case 9 and the second mounting case 10 are aligned in the first direction X. The composite plunger pair 18 has opposite first and second sides (not shown) in a direction perpendicular to the first direction X and perpendicular to the axial direction of the first rod 6. The second mounting case 10 is provided at first and second sides with first and second outlets (not shown), respectively. The first mounting shell 9 is provided with a third outlet (not shown) at a side facing away from the second mounting shell 10 in the first direction X. The liquid outlet flow passage 3 is communicated with the second liquid outlet through a first outlet, the liquid outlet flow passage 3 is communicated with the second liquid outlet through a third outlet, and the second valve body 5 is communicated with the second liquid outlet through a second outlet. The outlet flow path 3 may be substantially L-shaped, that is, the outlet flow path 3 at least has a first section 31 extending along the first direction X and a second section 32 extending along a direction from the first side to the second side (perpendicular to the first direction X), so that the high pressure plunger pump 1 and the low pressure plunger pump 2 can be connected into a whole.
Specifically, a fourth valve body 11 may be disposed between the liquid outlet channel 3 and the tool interface 19, and the fourth valve body 11 may be located between the first liquid outlet and the first valve body 4. A fifth valve body 12 can be arranged between the first liquid inlet and the oil bag 17, and a sixth valve body 13 can be arranged between the second liquid inlet and the oil bag 17. The fifth valve body 12 and the sixth valve body 13 are oriented parallel to the extending direction of the first rod 6.
In this embodiment, the first valve body 4, the second valve body 5, the third valve body, the fourth valve body 11, the fifth valve body 12, and the sixth valve body 13 are all check valves, the first valve body 4 only allows liquid to flow from the second liquid outlet to the first liquid outlet, the second valve body 5 only allows liquid to flow from the second liquid outlet, the third valve body only allows liquid to flow from the first liquid outlet, the fourth valve body 11 only allows liquid to flow from the liquid outlet channel 3, the fifth valve body 12 only allows liquid to flow into the first liquid inlet, and the sixth valve body 13 only allows liquid to flow into the second liquid inlet. Wherein, the fifth valve body 12 and the sixth valve body 13 can be used as oil suction valve, and the fourth valve body 11 can be used as oil discharge valve. The third valve body may act as a high pressure relief valve.
In a specific application scenario, oil enters the high-pressure plunger pump 1 from the fifth valve body 12, is pressed into the fourth valve body 11 by the first rod body 6 to enter equipment to work, simultaneously enters the low-pressure plunger pump 2 from the sixth valve body 13, is extruded by the second rod body 7, passes through the first valve body 4 of the liquid outlet flow channel 3, is converged with liquid flowing out of the first liquid outlet, enters the fourth valve body 11 and then enters the equipment to work, and at the moment, a pressure value provided by the electric pump is smaller than a first preset value.
When the pressure value required by the equipment is increased to a first preset value (namely the rated pressure of the second valve body 5), the first valve body 4 is closed, so that the liquid flowing out of the second liquid outlet cannot be merged with the liquid flowing out of the first liquid outlet, the second valve body 5 is opened, the liquid flowing out of the second liquid outlet enters a temporary storage oil tank (not shown), and the pressure value provided by the electric pump is larger than the first preset value and smaller than the second preset value.
If the pressure value of the equipment is continuously increased and reaches a second preset value (namely the set value of the third valve body), the third valve body is opened, and redundant pressure flow flows back to the temporary storage oil tank.
In this embodiment, the backpack double-acting electric pump may further include a pump body 20, and the composite plunger pair 18 is mounted on the pump body 20. The throat hoop 26 is arranged at the opening of the oil sac 17, and the throat hoop 26 connects the oil sac 17 with the pump body 20, so that the mounting, dismounting and maintenance and the like are simpler and more convenient.
It should be noted that, in the description of the present specification, the terms "first", "second", and the like are used for descriptive purposes only and for distinguishing similar objects, and no order is present therebetween, and no indication or suggestion of relative importance is to be made. Further, in the description of the present specification, "a plurality" means two or more unless otherwise specified.
The use of the terms "comprising" or "including" to describe combinations of elements, components, or steps herein also contemplates embodiments that consist essentially of such elements, components, or steps. By using the term "may" herein, it is intended to indicate that any of the described attributes that "may" include are optional.
A plurality of elements, components, parts or steps can be provided by a single integrated element, component, part or step. Alternatively, a single integrated element, component, part or step may be divided into separate plural elements, components, parts or steps. The disclosure of "a" or "an" to describe an element, ingredient, component or step is not intended to foreclose other elements, ingredients, components or steps.
The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.
Claims (10)
1. A backpack, double-acting electric pump comprising:
the device comprises a shell, a handle and a handle, wherein the shell is provided with a bearing component;
the composite plunger pair is positioned in the shell and comprises a high-pressure plunger pump, a low-pressure plunger pump and a change-over valve which are integrally arranged; the high-pressure plunger pump is provided with a first rod body, a first liquid inlet and a first liquid outlet, and the low-pressure plunger pump is provided with a second rod body, a second liquid inlet and a second liquid outlet; the diameter of the second rod body is larger than that of the first rod body, and the length of the second rod body is equal to that of the first rod body; the composite plunger pair is provided with a liquid outlet flow passage, the liquid outlet flow passage is connected with the first liquid outlet and the second liquid outlet, and the change-over valve is arranged on the liquid outlet flow passage;
the motor is positioned in the shell and comprises an output shaft, and the output shaft is used for driving the first rod body and the second rod body simultaneously;
the two oil bags are positioned in the shell and are respectively communicated with the first liquid inlet and the second liquid inlet;
and the tool interface is positioned outside the shell and is provided with a third liquid inlet and a third liquid outlet which are communicated with the liquid outlet flow channel, and the tool interface is used for connecting a tool.
2. The backpack double-acting electric pump according to claim 1, wherein the motor and the oil bladder are located on opposite sides of the composite plunger pair in a first direction, and the tool port is located on one side of the composite plunger pair in a second direction, the first direction being perpendicular to the second direction.
3. The backpack double-acting electric pump of claim 1 further comprising:
the switch handle is electrically connected with the motor and used for controlling the starting and stopping of the motor; the switch handle is connected with the shell through a connecting piece.
4. The backpack double-acting electric pump according to claim 1, further comprising:
and the battery is positioned outside the shell and used for supplying power to the motor.
5. The backpack double-acting electric pump according to claim 4, wherein there are at least two of the batteries, the batteries being located on a side of the housing where the oil bladder is located in a first direction.
6. The backpack double-acting electric pump according to claim 4, wherein the motor and the battery are electrically connected by a first circuit, the backpack double-acting electric pump further comprising:
and the power switch is positioned outside the shell and positioned on the first circuit and used for controlling the on-off of the first circuit.
7. The backpack double-acting electric pump according to claim 4, further comprising:
and the electric quantity display unit is positioned outside the shell and electrically connected with the battery and used for displaying the electric quantity of the battery.
8. The backpack double-acting electric pump according to claim 1, comprising a plurality of the composite plunger pairs, the plurality of composite plunger pairs being evenly distributed along a circumferential direction of the output shaft.
9. The backpack double-acting electric pump of claim 1, wherein the first rod and the second rod are arranged in parallel, and the first rod and the output shaft are arranged vertically; the first rod body and the second rod body are arranged in an aligned mode.
10. The backpack double-acting electric pump according to claim 1, further comprising a pump body on which the composite plunger pair is mounted; the throat hoop is arranged at the opening of the oil sac and used for connecting the oil sac with the pump body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123056164.0U CN216477717U (en) | 2021-12-06 | 2021-12-06 | Backpack type double-acting electric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123056164.0U CN216477717U (en) | 2021-12-06 | 2021-12-06 | Backpack type double-acting electric pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216477717U true CN216477717U (en) | 2022-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123056164.0U Active CN216477717U (en) | 2021-12-06 | 2021-12-06 | Backpack type double-acting electric pump |
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| Country | Link |
|---|---|
| CN (1) | CN216477717U (en) |
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2021
- 2021-12-06 CN CN202123056164.0U patent/CN216477717U/en active Active
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