A back mounted electric pump

Abstract

The utility model discloses a kind of back electric pump, it is related to electric pump technical field, can solve the problem of inconvenient use of existing electric hydraulic pump under high-frequency mobile scene. The utility model embodiment discloses a kind of back electric pump, including battery module, oil tank component, and pump oil module and shell component, shell component includes first shell body and second shell body, battery mounting groove and oil tank transverse groove are equipped on first shell body, second shell body is equipped with cavity inside;Battery module is vertically arranged in battery mounting groove and is covered in the cavity of second shell body;Oil tank component includes the oil tank vertical part vertically arranged in second shell body, and the oil tank transverse groove in sealing communication with oil tank vertical part;Pump oil module includes drive motor that is invertedly arranged in second shell body, pump oil component that is arranged in oil tank transverse groove and is driven by drive motor, and oil circuit component for forming hydraulic oil circuit to external oil pipe, the oil inlet end of oil circuit component is communicated with the oil outlet end of oil sending component.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic pump technology, specifically to a backpack electric pump. Background Technology

[0002] Currently, hydraulic power equipment capable of providing 720 Bar pressure is mostly ordinary electric hydraulic pumps. They require a matching power supply for use, and the length of the power cord is also limited. This makes them inconvenient to use in some special mobile application scenarios, especially fire rescue and disaster relief scenarios.

[0003] The existing electric hydraulic pumps are not designed for the needs of high-frequency mobile scenarios, resulting in unreasonable shape design and non-compact internal space layout. This leads to a large overall weight of the electric hydraulic pumps, which consumes a lot of physical strength in high-frequency mobile fire rescue and disaster relief scenarios.

[0004] Furthermore, existing electric hydraulic pumps typically have dual-plug connections. In time-sensitive fire rescue scenarios, installing hydraulic hoses is cumbersome and time-consuming. Additionally, fire rescue operations often involve poor ambient lighting at night, requiring firefighters to carry their own lighting equipment, increasing their physical exertion. Therefore, the inventors designed a backpack electric pump to solve at least one of the aforementioned problems.

[0005] Therefore, this application is submitted. Utility Model Content

[0006] The purpose of this application is to provide a backpack electric pump to solve the problem of inconvenience in using existing electric hydraulic pumps in high-frequency mobile scenarios.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following solution:

[0008] This application provides a backpack electric pump, including a battery module, an L-shaped fuel tank assembly, a pump module, and a housing assembly, wherein:

[0009] The housing assembly includes a first housing and a second housing fixed to the first housing. The first housing has a battery mounting slot and a fuel tank cross slot, and the second housing has a cavity inside.

[0010] The battery module is vertically positioned within the battery mounting slot and enclosed within the cavity of the second housing.

[0011] The fuel tank assembly includes a fuel tank upright part vertically disposed within the second housing, and a fuel tank transverse groove that is sealed and communicates with the fuel tank upright part.

[0012] The oil pump module includes a drive motor inverted inside the second housing, an oil pump assembly located in the horizontal groove of the oil tank and driven by the drive motor, and an oil circuit assembly for forming a hydraulic oil circuit to the external oil pipe. The oil inlet end of the oil circuit assembly is connected to the oil outlet end of the oil delivery assembly.

[0013] Optionally, the housing assembly further includes a third housing detachably connected to the second housing, the third housing being located on top of the battery module;

[0014] It also includes a lighting module fixed inside the third housing.

[0015] Optionally, the third housing and the second housing are provided with a locking assembly, and the third housing and the second housing are detachably and fixedly connected by the locking assembly.

[0016] Optionally, a control assembly may also be provided, located directly above the drive motor and the upright portion of the oil tank.

[0017] Optionally, the second housing has a back pad on the side away from the battery module;

[0018] It also includes a shoulder strap connector and a shoulder strap body, with both ends of the shoulder strap body being detachably connected to the first housing and the second housing respectively through the shoulder strap connector.

[0019] Optionally, the oil circuit assembly includes a hydraulic valve block with an internal oil outlet and return oil outlet, an oil pipe joint and an external pressure regulating valve disposed on the hydraulic valve block;

[0020] The vertical part of the oil tank is connected to the horizontal groove of the oil tank through a hydraulic valve block, and the drive motor is vertically installed in the second housing through the hydraulic valve block;

[0021] The second housing is provided with an operating window for exposing the oil pipe joint and the external pressure regulating valve;

[0022] The oil pipe joint's outlet end is connected to the hydraulic valve block's outlet path, the oil pipe joint's inlet end is connected to the hydraulic valve block's return path, and the ends of the outlet and return paths furthest from the oil pipe joint are connected to the oil tank's transverse groove.

[0023] The oil outlet of the pump assembly is connected to the oil outlet of the hydraulic valve block.

[0024] Optionally, the oil pump assembly includes a first plunger pump and a second plunger pump disposed in the transverse groove of the oil tank, and the power input end of the first plunger pump and the power output end of the second plunger pump are connected to the drive motor.

[0025] The oil outlets of both the first and second plunger pumps are connected to the oil outlet of the hydraulic valve block.

[0026] The hydraulic valve block is also equipped with a check valve, which is located between the oil outlet of the second plunger pump and the oil outlet of the hydraulic valve block.

[0027] Optionally, the hydraulic valve block is further provided with a sequential relief valve, one end of which is connected to the oil outlet of the second plunger pump, and the other end is connected to the return oil circuit in the hydraulic valve block.

[0028] Optionally, the hydraulic valve block is further provided with a built-in safety valve, the oil inlet of which is connected to the oil outlet of the hydraulic valve block, and the oil outlet of which is connected to the horizontal groove of the oil tank.

[0029] Optionally, the oil pipe connector is a quick-connect type connector.

[0030] Beneficial effects of the utility model:

[0031] I. The housing assembly of this application simultaneously houses a battery module, an L-shaped fuel tank assembly, and a fuel pump module, enabling the backpack electric pump in this application to be carried and moved directly, effectively solving a series of pain points in high-frequency mobile usage scenarios.

[0032] Second, the oil tank assembly of this application is L-shaped, and all the hydraulic oil in the vertical part of the oil tank is pumpable hydraulic oil. Under the same available oil volume, the L-shaped oil tank assembly can reduce the volume and total oil volume of the entire oil tank assembly, thereby reducing the weight of the entire backpack electric pump and reducing the physical exertion of the user.

[0033] Third, based on the L-shaped fuel tank assembly, the drive motor of the pump module is installed at the notch of the L-shaped fuel tank assembly. The battery module, the L-shaped fuel tank assembly, the drive motor and other components are arranged side by side, which can make full use of the space inside the housing assembly and improve the compactness of the backpack electric pump. At the same time, when in use, the battery module generates a lot of heat. The entire battery module is located on the side away from the back of the user, which can improve the comfort during use.

[0034] Fourth, this application also includes a detachable lighting module on the top of the battery module, so that when used in low-light conditions at night, there is no need to carry an additional light source, thus improving the convenience for the user. Attached Figure Description

[0035] Figure 1 This is a three-dimensional structural diagram of an embodiment of this application.

[0036] Figure 2 This is a three-dimensional structural schematic diagram from another perspective of an embodiment of this application.

[0037] Figure 3 This is a three-dimensional structural diagram of an embodiment of this application after the shell has been removed.

[0038] Figure 4 This is a schematic diagram of the spatial layout of an embodiment of this application.

[0039] Figure 5 This is a hydraulic schematic diagram of an embodiment of this application.

[0040] Explanation of reference numerals in the attached figures:

[0041] 1-First housing, 2-Second housing, 3-Third housing, 4-Shoulder strap body, 5-Shoulder strap connecting buckle, 6-Lighting module, 7-Locking assembly, 8-Fuel tank breather, 9-Switch, 10-Charging port, 11-Display screen, 12-Oil pipe connector, 13-External pressure regulating valve, 14-Hydraulic valve block, 15-Operating window, 16-Heat dissipation hole, 17-Back pad, 18-Fuel tank upright part, 19-Fuel level gauge, 20-Fuel filler port, 21-Drive motor, 22-Battery module, 23-Control component, 24-Battery mounting slot, 25-Fuel tank horizontal slot, 26-Filter screen, 27-First plunger pump, 28-Second plunger pump, 29-Sequential overflow valve, 30-Check valve, 31-Built-in safety valve. Detailed Implementation

[0042] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of the present invention is not limited thereto.

[0043] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0044] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "have," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0045] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0046] likeFigures 1 to 5 As shown, this embodiment provides a backpack electric pump, including a battery module 22, an L-shaped fuel tank assembly, a pump module, and a housing assembly, wherein:

[0047] The outer casing assembly includes a first housing 1 and a second housing 2 fixed to the first housing 1. The first housing 1 is provided with a battery mounting groove 24 and a fuel tank transverse groove 25, and the second housing 2 is provided with a cavity.

[0048] The battery module 22 is vertically disposed in the battery mounting groove 24 and enclosed in the cavity of the second housing 2;

[0049] The fuel tank assembly includes a fuel tank upright portion 18 vertically disposed within the second housing 2, and a fuel tank transverse groove 25 that is sealed and communicates with the fuel tank upright portion 18.

[0050] The oil pump module includes a drive motor 21 inverted inside the second housing 2, an oil pump assembly located in the horizontal groove 25 of the oil tank and driven by the drive motor 21, and an oil circuit assembly for forming a hydraulic oil circuit to the external oil pipe. The oil inlet end of the oil circuit assembly is connected to the oil outlet end of the oil delivery assembly.

[0051] In this embodiment, by simultaneously arranging a battery module 22, an L-shaped fuel tank assembly, and a fuel pump module within the housing assembly, the backpack electric pump of this application can be directly carried and moved, effectively solving a series of pain points in high-frequency mobile usage scenarios.

[0052] Furthermore, since the oil tank assembly in this embodiment is L-shaped, all the hydraulic oil in its vertical part 18 is pumpable hydraulic oil. Under the same available oil volume, the L-shaped oil tank assembly can reduce the volume and total oil volume of the entire oil tank assembly, thereby reducing the weight of the entire backpack electric pump and reducing the physical exertion of the user.

[0053] In this embodiment, the outer casing assembly further includes a third casing 3 that is detachably connected to the second casing 2, and the third casing 3 is located on top of the battery module;

[0054] It also includes a lighting module 6 fixed inside the third housing 3.

[0055] This embodiment provides a detachable lighting module 6 on the top of the battery module 22, eliminating the need to carry an additional light source when using the device in low-light conditions at night, thus improving user convenience.

[0056] Specifically, in this embodiment, as Figure 1As shown, the third housing 3 and the second housing 2 are provided with a locking assembly 7. The third housing 3 and the second housing 2 are detachably and fixedly connected by the locking assembly 7. In this embodiment, the locking assembly 7 is a conventional detachable connection structure, which will not be described in detail here. In some embodiments, the lighting module 6 can also be connected to the third housing 3 and the second housing 2 by other means, such as by magnetic attraction, to further improve the convenience of disassembling and installing the lighting module 6.

[0057] In this embodiment, a respirator is also provided on the third housing 3. The respirator is connected to the top of the fuel tank assembly through a hose. The respirator is an existing component and will not be described in detail here.

[0058] In some embodiments, a foldable bracket (not shown in the figure) can also be provided on the lighting module 6 to facilitate the installation of the lighting module 6. The lighting module 6 can use conventional light-emitting units such as LED lights, and technicians can configure them as needed, which will not be elaborated here.

[0059] In this embodiment, a control component 23 is also provided directly above the drive motor 21 and the oil tank vertical part 18. The control component 23 is a common component of the electric pump, which will not be described in detail here.

[0060] In this embodiment, a display screen 11 is provided on the second housing 2 to conveniently display the power of the battery module 22. A charging port 10 for charging the battery module 22 is also provided on the second housing 2, as well as a switch 9 to facilitate the user to turn the backpack electric pump on and off in a timely manner.

[0061] In this embodiment, an oil level gauge 19 is also provided on the side of the vertical part 18 of the oil tank to facilitate observation of the oil level, and an oil filling port 20 is also provided on the top of the vertical part 18 of the oil tank to facilitate the addition of hydraulic oil into the oil tank assembly.

[0062] In this embodiment, a back pad 17 is provided on the side of the second housing 2 away from the battery module 22;

[0063] It also includes a shoulder strap connecting buckle 5 and a shoulder strap body 4. The two ends of the shoulder strap body 4 are detachably connected to the first housing 1 and the second housing 2 respectively through the shoulder strap connecting port. The shoulder strap body 4 is provided to facilitate the user to carry the backpack electric pump of this embodiment for high-frequency movement. The back pad 17 is located on the side of the second housing 2 away from the battery module 22, which can prevent the high heat of the battery module 22 during use from being transferred to the back of the human body. At the same time, it is also conducive to the heat dissipation of the entire backpack electric pump.

[0064] In this embodiment, the oil circuit assembly includes a hydraulic valve block 14 with an internal oil outlet and return oil outlet, an oil pipe connector 12 and an external pressure regulating valve 13 disposed on the hydraulic valve block 14.

[0065] The vertical part 18 of the oil tank is connected to the horizontal groove 25 of the oil tank through the hydraulic valve block 14, and the drive motor 21 is vertically installed in the second housing 2 through the hydraulic valve block 14.

[0066] In this embodiment, the second housing 2 is also provided with a number of heat dissipation holes 16 to facilitate heat dissipation of the battery module 22.

[0067] The second housing 2 is provided with an operating window 15 for exposing the oil pipe joint 12 and the external pressure regulating valve 13;

[0068] The oil outlet end of the oil pipe joint 12 is connected to the oil outlet path of the hydraulic valve block 14, the oil inlet end of the oil pipe joint 12 is connected to the oil return path of the hydraulic valve block 14, and the end of the oil outlet path and the oil return path away from the oil pipe joint 12 is connected to the horizontal groove 25 of the oil tank.

[0069] The oil outlet end of the pump assembly is connected to the oil outlet path of the hydraulic valve block 14.

[0070] In this embodiment, the oil pipe connector 12 and the external pressure regulating valve 13 are exposed by setting an operation window 15, which makes it convenient for users to connect oil pipes and adjust pressure.

[0071] In this embodiment, the oil pump assembly includes a first plunger pump 27 and a second plunger pump 28 disposed in the horizontal groove 25 of the oil tank. The power input ends of the first plunger pump 27 and the second plunger pump 28 are connected to the power output end of the drive motor 21.

[0072] The oil outlets of the first plunger pump 27 and the second plunger pump 28 are both connected to the oil outlet of the hydraulic valve block 14.

[0073] The hydraulic valve block 14 is also equipped with a one-way valve 30. The one-way valve 30 is located between the oil outlet end of the second plunger pump 28 and the oil outlet of the hydraulic valve block 14. The two plunger pumps can quickly deliver hydraulic oil to external tools under low load, while the one-way valve 30 can prevent the hydraulic oil delivered by the first plunger pump 27 from returning directly to the oil tank transverse groove 25.

[0074] In this embodiment, a filter screen 26 is also provided at the oil inlet of the first plunger pump 27 and the second plunger pump 28 to prevent contaminants from appearing in the hydraulic oil and causing blockage of the oil circuit.

[0075] In this embodiment, the hydraulic valve block 14 is also provided with a sequential relief valve 29. One end of the sequential relief valve 29 is connected to the oil outlet of the second plunger pump 28, and the other end is connected to the return oil circuit in the hydraulic valve block 14. The sequential relief valve 29 is provided so that if the hydraulic oil pressure delivered by the second plunger pump 28 is too high, it can directly return to the horizontal groove 25 of the oil tank.

[0076] In this embodiment, the hydraulic valve block 14 is also provided with a built-in safety valve 31. The oil inlet of the built-in safety valve 31 is connected to the oil outlet of the hydraulic valve block 14, and the oil outlet of the built-in safety valve 31 is connected to the horizontal groove 25 of the oil tank. By setting the built-in safety valve 31, the hydraulic pressure in the oil outlet of the hydraulic valve block 14 exceeds the maximum pressure, and the hydraulic oil can return to the horizontal groove of the oil tank through the built-in safety valve 31.

[0077] The external pressure regulating valve 13 provided in this embodiment can adjust the hydraulic pressure of the oil outlet of the hydraulic valve block 14, which is convenient for operators. When the hydraulic pressure in the oil outlet of the hydraulic valve block 14 exceeds the pressure adjusted by the external pressure regulating valve 13, the hydraulic oil in the oil outlet can return to the horizontal groove 25 of the oil tank in a timely manner through the external pressure regulating valve 13 and the return oil line.

[0078] In this embodiment, the hydraulic oil flow channels such as the oil outlet and return lines, as well as components such as the check valve 30, the built-in safety valve 31, and the sequential relief valve 29 are integrated together through the hydraulic valve block 14, thereby improving the integration level of the equipment. This is a conventional technology and will not be described in detail here.

[0079] In this embodiment, the oil pipe connector 12 is a quick-connect connector, which facilitates quick installation and disassembly by the user, improving ease of use. In some embodiments, the oil pipe connector 12 can also be a conventional connector.

[0080] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of this utility model, and the utility model is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of this utility model, and these modifications and improvements are also considered to be within the protection scope of this utility model.

Claims

1. A backpack electric pump, characterized in that, It includes a battery module (22), an L-shaped fuel tank assembly, a fuel pump module, and a housing assembly, wherein: The outer casing assembly includes a first housing (1) and a second housing (2) fixed to the first housing (1). The first housing (1) is provided with a battery mounting groove (24) and a fuel tank transverse groove (25). The second housing (2) is provided with a cavity. The battery module (22) is vertically disposed in the battery mounting groove (24) and enclosed in the cavity of the second housing (2); The fuel tank assembly includes a fuel tank upright part (18) vertically disposed in the second housing (2), and a fuel tank transverse groove (25) that is sealed and communicated with the fuel tank upright part (18); The oil pump module includes a drive motor (21) inverted in the second housing (2), an oil pump assembly located in the oil tank transverse groove (25) and driven by the drive motor (21), and an oil circuit assembly for forming a hydraulic oil circuit to the external oil pipe. The oil inlet end of the oil circuit assembly is connected to the oil outlet end of the oil delivery assembly.

2. The backpack electric pump according to claim 1, characterized in that, The housing assembly also includes a third housing (3) detachably connected to the second housing (2), the third housing (3) being located on top of the battery module; It also includes a lighting module (6) fixed inside the third housing (3).

3. A backpack electric pump according to claim 2, characterized in that, The third housing (3) and the second housing (2) are provided with a locking assembly (7), and the third housing (3) and the second housing (2) are detachably and fixedly connected by the locking assembly (7).

4. A backpack electric pump according to claim 2, characterized in that, It also includes a control assembly (23) located directly above the drive motor (21) and the upright part of the oil tank (18).

5. A backpack electric pump according to claim 1, characterized in that, The second housing (2) has a back pad (17) on the side away from the battery module (22); It also includes a strap connecting buckle (5) and a strap body (4), the two ends of which are detachably connected to the first housing (1) and the second housing (2) through the strap connecting port.

6. A backpack electric pump according to claim 1, characterized in that, The oil circuit assembly includes a hydraulic valve block (14) with an internal oil outlet and return oil outlet, an oil pipe joint (12) and an external pressure regulating valve (13) provided on the hydraulic valve block (14); The vertical part (18) of the oil tank is connected to the horizontal groove (25) of the oil tank through the hydraulic valve block (14), and the drive motor (21) is vertically installed in the second housing (2) through the hydraulic valve block (14); The second housing (2) is provided with an operating window (15) for exposing the oil pipe joint (12) and the external pressure regulating valve (13); The oil outlet end of the oil pipe joint (12) is connected to the oil outlet path of the hydraulic valve block (14), the oil inlet end of the oil pipe joint (12) is connected to the oil return path of the hydraulic valve block (14), and the end of the oil outlet path and the oil return path away from the oil pipe joint (12) is connected to the horizontal groove (25) of the oil tank. The oil outlet end of the pump assembly is connected to the oil outlet path of the hydraulic valve block (14).

7. A backpack electric pump according to claim 6, characterized in that, The oil pump assembly includes a first plunger pump (27) and a second plunger pump (28) disposed in the horizontal groove (25) of the oil tank. The power input end of the first plunger pump (27) and the power output end of the second plunger pump (28) are connected to the power output end of the drive motor (21). The oil outlets of the first plunger pump (27) and the second plunger pump (28) are both connected to the oil outlet of the hydraulic valve block (14); The hydraulic valve block (14) is also equipped with a check valve (30), which is located between the oil outlet of the second plunger pump (28) and the oil outlet of the hydraulic valve block (14).

8. A backpack electric pump according to claim 7, characterized in that, The hydraulic valve block (14) is also provided with a sequential relief valve (29). One end of the sequential relief valve (29) is connected to the oil outlet of the second plunger pump (28), and the other end is connected to the return oil circuit in the hydraulic valve block (14).

9. A backpack electric pump according to claim 7, characterized in that, The hydraulic valve block (14) is also equipped with a built-in safety valve (31). The oil inlet of the built-in safety valve (31) is connected to the oil outlet of the hydraulic valve block (14), and the oil outlet of the built-in safety valve (31) is connected to the horizontal groove (25) of the oil tank.

10. A backpack electric pump according to claim 6, characterized in that, The oil pipe connector (12) is a quick-connect type connector.

Images