Jack

Abstract

The utility model discloses a jack and a horizontal jack, the jack comprises a rack, a lifting assembly, a hydraulic assembly, a power unit and a battery pack combination part, the lifting assembly is pivotally connected with the rack, one end of the lifting assembly comprises a lifting disc capable of ascending or descending, and the lifting disc provides an upward lifting force for a lifted object; the hydraulic assembly is arranged to drive the lifting assembly to execute a lifting action or a descending action; the power unit comprises a motor, a speed reducing mechanism and an executing mechanism, the speed reducing mechanism is located between the motor and the executing mechanism, and the executing mechanism can drive the hydraulic assembly to operate; the battery pack combination part is used for installing a battery pack which at least supplies power to the power unit. The lifting assembly is driven through the hydraulic assembly, and stability is improved; power is supplied through the battery pack, a power supply circuit is simplified, the failure rate is reduced, and the recyclability is good.

Description

Technical Field

[0001] The present application relates to a power tool, and more particularly to a jack and a horizontal jack. Background Art

[0002] A jack in the related art realizes lifting and lowering by manually operating a rocker, with slow operation speed and high labor intensity. Another jack in the related art performs lifting and lowering operations by driving a lead screw mechanism with a motor. Although the operation efficiency is improved, the stability of the lead screw mechanism is poor and the bearing capacity is insufficient. A jack in the related art needs to be connected to an AC power supply for power supply, which limits the use of the jack when moving or outdoors.

[0003] This section provides background information related to the present application, and these background information are not necessarily prior art. Summary of the Utility Model

[0004] An object of the present application is to solve or at least mitigate some or all of the above problems. To this end, an object of the present application is to provide a jack and a horizontal jack.

[0005] To achieve the above object, the present application adopts the following technical solutions:

[0006] A jack includes: a frame; a lifting assembly pivotally connected to the frame, one end of the lifting assembly including a lifting plate that can rise or fall, and the lifting plate provides an upward lifting force for the object to be lifted; a hydraulic assembly configured to drive the lifting assembly to perform a lifting action or a lowering action; a power unit including a motor, a reduction mechanism, and an actuator, the reduction mechanism being located between the motor and the actuator, and the actuator being capable of driving the hydraulic assembly to operate; a battery pack coupling portion for installing a battery pack, and the battery pack supplies power to at least the power unit.

[0007] In some embodiments, the battery pack is detachably connected to the jack.

[0008] In some embodiments, the insertion and extraction direction of the battery pack is along a first linear direction, and the first linear direction extends substantially along the front-rear direction.

[0009] In some embodiments, the frame includes a base and a housing, the hydraulic assembly is disposed on the base, and the housing covers the hydraulic assembly.

[0010] In some embodiments, the battery pack is installed in the housing.

[0011] In some embodiments, a part of the battery pack protrudes out of the housing.

[0012] In some embodiments, when the battery pack is installed in the battery pack coupling portion, a waterproof cover is provided on the outer side of the battery pack, and the waterproof cover covers at least the top of the battery pack.

[0013] In some embodiments, the lifting assembly includes a lifting arm, the frame includes a connecting portion, one end of the lifting arm is pivotally connected to the connecting portion, and the battery pack and the lifting plate are distributed on both sides of the connecting portion.

[0014] In some embodiments, the jack at least includes a first operating member, and the first operating member is configured to control the hydraulic assembly to drive the lifting assembly to act.

[0015] In some embodiments, the first operating member is an electronically controlled operating member.

[0016] In some embodiments, the jack includes a load detection assembly, the load detection assembly is configured to detect the load parameters of the lifting assembly, and the hydraulic assembly adjusts the lifting speed of the lifting assembly according to the load parameters.

[0017] In some embodiments, the jack at least includes a second operating member, and the second operating member is configured to control the hydraulic assembly to release pressure.

[0018] In some embodiments, the jack includes a lowering operating member, the lowering operating member is configured to control the hydraulic assembly to release pressure in a triggered state, and when the lowering operating member is triggered, the height of the lifting plate automatically decreases.

[0019] In some embodiments, the hydraulic assembly includes a solenoid valve, the solenoid valve is configured to open or close the pressure relief oil circuit of the hydraulic assembly, and the solenoid valve is in a powered-on state when the lowering operating member is in a triggered state.

[0020] In some embodiments, the hydraulic assembly includes a hydraulic pump and a hydraulic cylinder, the actuator drives the hydraulic pump to operate, the battery pack is configured to supply power to the motor, the motor shaft of the motor extends along a second straight line direction, the hydraulic cylinder acts along a third straight line direction, and the second straight line is parallel or perpendicular to the third straight line.

[0021] In some embodiments, the jack further includes a light-emitting element, the light-emitting element is disposed on the frame, and the light-emitting element is configured to indicate the working state of the jack.

[0022] In some embodiments, the jack further includes a light-emitting element, the light-emitting element can be lit or extinguished, and the light-emitting element is configured to indicate the working state of the jack.

[0023] In some embodiments, the jack further includes a light-emitting element, the light-emitting element can pop up or hide, and the light-emitting element is configured to indicate the working state of the jack.

[0024] In some embodiments, the jack is provided with a power interface to access the vehicle-mounted discharge interface, and the vehicle-mounted discharge interface can receive a vehicle-mounted DC power supply or a vehicle-mounted AC power supply.

[0025] In some embodiments, the jack further includes a light-emitting element for lighting and traveling wheels. The traveling wheels include a front wheel and a rear wheel. The front wheel is disposed on a side closer to the lifting plate, and the rear wheel is disposed on the other side opposite to the front wheel. The light-emitting element is disposed above the rear wheel.

[0026] A horizontal jack includes: a frame; a lifting assembly pivotally connected to the frame, one end of the lifting assembly including a lifting plate that can rise or fall, and the lifting plate providing an upward lifting force for the object to be lifted; a driving assembly including a motor, and the driving assembly being configured to drive the lifting assembly to move; a battery pack coupling portion for mounting a battery pack; a remote control device that can at least control the start and stop of the motor, and the remote control device can remotely control the operation of the horizontal jack; and function keys that can at least control the lifting assembly to rise or fall.

[0027] In some embodiments, there are two function keys. One function key is used to control the lifting assembly to perform a lifting action, and the other function key is used to control the lifting assembly to perform a lowering action.

[0028] In some embodiments, there are three function keys. The first function key is used to control the lifting assembly to perform a power-on operation for the whole machine, the second function key is used to control the lifting assembly to perform a lifting action, and the third function key is used to control the lifting assembly to perform a lowering action.

[0029] In some embodiments, there are three function keys. The first function key is used to control the lifting assembly to perform a fast-lifting action, the second function key is used to control the lifting assembly to perform a slow-lifting action, and the third function key is used to control the lifting assembly to perform a lowering action.

[0030] In some embodiments, there are three function keys. The first function key is used to control the lifting assembly to perform a lifting action, the second function key is used to control the lifting assembly to perform a pause action, and the third function key is used to control the lifting assembly to perform a lowering action.

[0031] In some embodiments, there are four function keys. The first function key is used to control the lifting assembly to perform a fast-lifting action, the second function key is used to control the lifting assembly to perform a slow-lifting action, the third function key is used to control the lifting assembly to perform a pause action, and the fourth function key is used to control the lifting assembly to perform a lowering action.

[0032] In some embodiments, the lifting plate has a first lifting speed before contacting the object to be lifted, and the lifting plate has a second lifting speed after contacting the object to be lifted, and the first lifting speed is greater than the second lifting speed.

[0033] In some embodiments, a rotational speed curve is preset, and after the lifting plate contacts the object to be lifted, the second lifting speed changes according to the rotational speed curve.

[0034] In some embodiments, a constant target speed is preset. After the lifting plate contacts the object to be lifted, the second lifting speed is the target speed.

[0035] In some embodiments, the jack includes a load detection component. The load detection component is configured to detect the load parameter of the lifting component, and the driving component adjusts the lifting speed of the lifting component according to the load parameter.

[0036] In some embodiments, the driving component includes a hydraulic component. The hydraulic component includes a solenoid valve. The solenoid valve is configured to open or close the pressure relief oil circuit of the hydraulic component. The pressure relief oil circuit includes one or more manual switches. If the solenoid valve is powered off, the manual switch can be operated to achieve pressure relief.

[0037] In some embodiments, when the lifting component is in the lifting state or the descending state, triggering any one function key can pause the movement of the lifting component.

[0038] In some embodiments, it further includes a light-emitting element. The light-emitting element is arranged on the frame and is configured to indicate the working state of the jack.

[0039] In some embodiments, it further includes a light-emitting element. The light-emitting element can be lit or extinguished and is configured to indicate the working state of the jack.

[0040] In some embodiments, it further includes a light-emitting element. The light-emitting element can pop out or hide and is configured to indicate the working state of the jack.

[0041] The advantages of the present application are as follows: The lifting component is pivotally connected to the frame, and acts on the object to be lifted through the lifting plate to provide an upward force for the object to be lifted; the battery pack supplies power to the power unit, drives the hydraulic component to move, and further drives the lifting component to perform the lifting action or the descending action, reducing the labor intensity, so the operation is more labor-saving; the lifting component is driven by the hydraulic component to improve stability; powered by the battery pack, the power supply line is simplified, the failure rate is reduced, and the recyclability is better. Description of the Drawings

[0042] Figure 1 is a schematic structural diagram of the jack provided by the present application in the lifting state;

[0043] Figure 2 is a schematic structural diagram of the jack provided by the present application in the storage state Figure 1 ;

[0044] Figure 3 is a front view of the jack provided by the present application in the lifting state;

[0045] Figure 4It is the front view of the jack provided by this application in the retracted state;

[0046] Figure 5 It is the structural schematic diagram of a part of the structure of the jack provided by this application Figure 1 ;

[0047] Figure 6 It is the top view of a part of the structure of the jack provided by this application;

[0048] Figure 7 It is the structural schematic diagram of the jack provided by this application in the retracted state Figure 2 ;

[0049] Figure 8 It is the structural schematic diagram of the jack provided by this application in the retracted state Figure 3 ;

[0050] Figure 9 It is the structural schematic diagram of the jack provided by this application in the retracted state Figure 4 ;

[0051] Figure 10 It is the structural schematic diagram of the jack provided by this application in the retracted state Figure 5 ;

[0052] Figure 11 It is the exploded structural schematic diagram of the jack provided by this application Figure 1 ;

[0053] Figure 12 It is the exploded structural schematic diagram of the jack provided by this application Figure 2 ;

[0054] Figure 13 It is the structural schematic diagram of a part of the structure of the jack provided by this application Figure 2 ;

[0055] Figure 14 It is the structural schematic diagram of a part of the structure of the jack provided by this application Figure 3 ;

[0056] Figure 15 It is the front view of a part of the structure of the jack provided by this application;

[0057] Figure 16 It is the structural schematic diagram of the motor, reduction mechanism and actuator of the jack provided by this application;

[0058] Figure 17 It is the principle of the hydraulic components of the jack provided by this application Figure 1 ;

[0059] Figure 18 It is the principle of the hydraulic components of the jack provided by this applicationFigure 2 ;

[0060] Figure 19 is a schematic diagram of the solenoid valve and the pressure relief pipeline of the jack provided by this application;

[0061] Figure 20 is Figure 19 a schematic diagram of the structure of the solenoid valve in

[0062] Figure 21 is a schematic diagram of the structure of a light-emitting element of the jack provided by this application;

[0063] Figure 22 is a schematic diagram of the structure of another light-emitting element of the jack provided by this application;

[0064] Figure 23 is a schematic diagram of the connection between the jack provided by this application and the vehicle-mounted power supply;

[0065] Figure 24 is a schematic diagram of the structure of a handle assembly of the jack provided by this application. Detailed Embodiments

[0066] Before explaining any embodiment of this application in detail, it should be understood that this application is not limited to the structural details and component arrangements described in the following description or shown in the above drawings.

[0067] In this application, the terms "include", "comprise", "have" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device including a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the presence of additional identical elements in the process, method, article or device including that element.

[0068] In this application, the term "and / or" is a relationship description of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, in this application, the character " / " generally indicates that the associated objects before and after are in an "and / or" relationship.

[0069] In this application, the terms "connect", "combine", "couple", and "mount" can be direct connections, combinations, couplings, or mounts, or can be indirect connections, combinations, couplings, or mounts. Among them, by way of example, a direct connection means that two parts or components are connected together without an intermediate member being provided therebetween, and an indirect connection means that two parts or components are respectively connected to at least one intermediate member, and these two parts or components are connected through the intermediate member. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings, and can include electrical connections or couplings.

[0070] In this application, those of ordinary skill in the art will understand that relative terms used in connection with a quantity or condition (e.g., "about", "approximately", "substantially", etc.) are intended to include the recited value and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances resulting from manufacturing, assembly, use, etc. associated with a particular value. Such terms should also be considered to disclose a range defined by the absolute values of two endpoints. The relative terms may refer to a plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values not using relative terms should also be disclosed as having tolerances. In addition, when "substantially" is used to express a relative angular positional relationship (e.g., substantially parallel, substantially perpendicular), it may refer to a plus or minus a certain number of degrees (e.g., 1 degree, 5 degrees, 10 degrees or more) from the indicated angle.

[0071] In this application, those of ordinary skill in the art will understand that the functions performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the functions performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0072] In this application, the orientation terms such as "upper", "lower", "left", "right", "front", "rear", etc. are described based on the orientation and positional relationship shown in the drawings, and should not be construed as a limitation on the embodiments of this application. In addition, in the context, it should also be understood that when it is mentioned that one element is connected "above" or "below" another element, it can not only be directly connected "above" or "below" another element, but also be indirectly connected "above" or "below" another element through an intermediate element. It should also be understood that the orientation terms such as the upper side, the lower side, the left side, the right side, the front side, the rear side, etc. not only represent the positive orientation, but can also be understood as the side orientation. For example, the lower side can include directly below, lower left, lower right, lower front, and lower rear, etc.

[0073] In the present application, the terms “controller”, “processor”, “central processing unit”, “CPU”, and “MCU” are interchangeable. When using the unit “controller”, “processor”, “central processing unit”, “CPU”, or “MCU” to perform a specific function, unless otherwise specified, these functions can be performed by a single one of the above units or multiple ones of the above units.

[0074] In the present application, for the purpose of implementing a specific function, the terms “device”, “module”, or “unit” can be implemented in the form of hardware or software.

[0075] In the present application, the terms “calculate”, “judge”, “control”, “determine”, “identify”, etc. refer to the operations and processes of a computer system or a similar electronic computing device (e.g., a controller, a processor, etc.).

[0076] See Figure 1 and Figure 2 , the present application provides a jack 100, which includes a frame 110 and a lifting assembly 120. The lifting assembly 120 is pivotally connected to the frame 110. One end of the lifting assembly 120 includes a lifting plate 121 that can rise or fall. The lifting plate 121 provides an upward lifting force for the object to be lifted. When the lifting assembly 120 rotates upward, the lifting plate 121 rises; when the lifting assembly 120 rotates downward, the lifting plate 121 descends.

[0077] Define the front-back direction, left-right direction, and up-down direction of the jack 100. The pivotal position of the lifting assembly 120 and the frame 110 is close to the rear end of the jack 100. The lifting assembly 120 lifts along the up-down direction, and the pivotal axis of the lifting assembly 120 is substantially along the left-right direction.

[0078] The lifting assembly 120 includes a lifting arm 122, and the frame 110 includes a connecting portion 111. One end of the lifting arm 122 is pivotally connected to the connecting portion 111. One lifting arm 122 can be provided, or two lifting arms 122 can be provided. When two lifting arms 122 are provided, the two lifting arms 122 can be interlocked with each other.

[0079] In an embodiment, neither of the two lifting arms 122 is a straight arm, but an arm with a certain arc. The two lifting arms 122 are connected by four pivot shafts 123, as Figure 3As shown, the two pivot shafts 123 provided on the frame 110 are fixed shafts to prevent flipping. When one of the lifting arms 122 is driven, this lifting arm 122 actively lifts upward, and the other lifting arm 122 is lifted passively. Since both lifting arms 122 are not straight arms and have different shapes, the lifting plate 121 can be kept horizontal all the time. Theoretically speaking, for a horizontal jack, as long as both lifting arms 122 are not straight arms, or one of the four pivot shafts 123 can move, the lifting plate 121 can be kept horizontal during the upward lifting process. Refer to Figure 3 And Figure 4 , the lifting assembly 120 has a lifting state and a storage state. When the lifting assembly 120 is in the storage state, the lifting assembly 120 is located at the storage position. When the lifting assembly 120 is in the lifting state, the lifting assembly 120 can be locked at any position above the storage position. During the lifting process of the lifting assembly 120, the lifting plate 121 is always in a horizontal state, which is convenient for having a large contact area with the object to be lifted.

[0080] Refer to Figure 1 , Figure 5 And Figure 6 , the jack 100 further includes a driving assembly. The driving assembly includes a power unit 160 and a hydraulic assembly 130. The power unit 160 provides power for the hydraulic assembly 130. The hydraulic assembly 130 is arranged to drive the lifting assembly 120 to perform a lifting action or a lowering action; by driving the lifting assembly 120 through the hydraulic assembly 130, the stability is improved. The hydraulic assembly 130 includes a hydraulic pump 131 and a hydraulic cylinder 132. The hydraulic cylinder 132 acts in a straight line direction. When the hydraulic cylinder 132 is pressurized, the lifting assembly 120 performs a lifting action. When the hydraulic cylinder 132 is depressurized, the lifting assembly 120 performs a lowering action. When the hydraulic cylinder 132 maintains pressure, the lifting assembly 120 stays at the current position. In one embodiment, the hydraulic pump 131 is a plunger pump.

[0081] The jack 100 further includes a battery pack connection part 140 for installing the battery pack 200. The battery pack 200 supplies power to at least the power unit 160 that can drive the hydraulic assembly 130 to move. By using the battery pack 200 to provide an energy source for the operation of the hydraulic assembly 130, and then the hydraulic assembly 130 drives the lifting assembly 120 to perform a lifting action or a lowering action, the labor intensity is reduced, and thus the operation is more labor-saving; by being powered by the battery pack 200, the power supply line is simplified, the failure rate is reduced, and the recyclability is relatively good.

[0082] The battery pack 200 is detachably connected to the jack 100, facilitating charging, replacement, and maintenance. In some embodiments, the battery pack 200 is detachably connected to the frame 110. The battery pack 200 does not need to be lifted or lowered with the lifting assembly 120, facilitating the layout of the circuit. In some embodiments, the battery pack 200 is detachably connected to the lifting assembly 120. In some embodiments, the battery pack 200 is detachably connected to the hydraulic assembly 130.

[0083] The battery pack coupling part 140 can match battery packs 200 of different specifications to meet different requirements. In some embodiments, the jack 100 has a dual-pack or multi-pack battery compartment that can accommodate two or more battery packs 200. The battery pack 200 can be a lithium battery pack, a solid-state battery pack, or a soft-pack battery pack. In some embodiments, the rated voltage of the battery pack 200 is greater than or equal to 10V and less than or equal to 36V. The rated voltage of such a battery pack 200 is relatively small. In some embodiments, the rated voltage of the battery pack 200 is 10.8V, 12V, 16V, 20V, 24V, 30V, or 36V. The battery pack 200 includes a battery pack housing and a battery cell group. The battery pack housing is assembled to form an accommodation space to fix and accommodate the battery cell group. The battery cell group includes multiple battery cells, and the battery cells are used to store energy. The multiple battery cells are connected in series, in parallel, or in a combination of series and parallel to form the battery cell group. The battery pack 200 also includes a battery pack positive terminal and a battery pack negative terminal that are electrically connected to an external circuit.

[0084] In some embodiments, the capacitance of the battery pack 200 is greater than or equal to 1Ah and less than or equal to 12Ah. In one embodiment, the rated voltage of the battery pack 200 is 18V and the capacitance is 1.5Ah. In one embodiment, the rated voltage of the battery pack 200 is 24V and the capacitance is 8Ah. With such settings, considering the different working conditions of the jack 100 whether it is used at home or in a repair shop, it can be ensured that a jack 100 equipped with a fully charged battery pack 200 can work for at least about 8 hours.

[0085] In the embodiments of the present application, the battery pack 200, as an energy storage device, can store electrical energy to supply power to the jack and can also supply power to other power-consuming devices that require electrical energy. The power-consuming devices can be any devices that require electrical energy as an energy source. In one embodiment, the power-consuming devices include handheld power tools, such as electric drills, angle grinders, sanders, chain saws, hair dryers, and so on. In one embodiment, the power-consuming devices can also be lights, mosquito control devices, fans, mobile phones, computers, and other household electrical devices. In one embodiment, the power-consuming devices can also include vehicles, standing vehicles, and other means of transportation.

[0086] In some embodiments, the battery pack 200 and the lifting plate 121 are distributed on both sides of the connecting portion 111. The space is fully utilized, the weight distribution is reasonable, and the balance of the jack 100 is ensured.

[0087] The battery pack 200 can be hidden to avoid being damaged by the external environment. The battery pack 200 can also be exposed for easy installation and disassembly. The battery pack 200 can also be partially hidden and partially exposed.

[0088] See Figure 1 、 Figure 7 and Figure 8 As shown in FIGS.

[0089] The frame 110 includes a base 112 and a housing 113. The hydraulic component 130 is disposed on the base 112, and the housing 113 covers the hydraulic component 130. The housing 113 protects the hydraulic component 130. The lifting component 120 is pivotally connected to the base 112. The housing 113 and the lifting plate 121 are distributed on both sides of the connecting portion 111 and are used to cover part of the hydraulic component 130. There is also part of the hydraulic component 130 located below the lifting component 120. When the lifting component 120 is in the storage position, the lifting component 120 shields the hydraulic component 130.

[0090] In some embodiments, the battery pack 200 is installed in the housing 113. The housing 113 protects the battery pack 200. In some embodiments, the battery pack 200 partially protrudes out of the housing 113.

[0091] The shape of the housing 113 can be set according to actual needs and can be a cuboid shape, a cylindrical shape or other shapes. Taking the front-back direction, left-right direction and up-down direction of the jack 100 as a reference, the housing 113 has a front side, a rear side, a left side, a right side, an upper side and a lower side. When the battery pack 200 protrudes out of the housing 113, if possible, the battery pack 200 can protrude from any one side, any two sides or any three sides of the housing 113.

[0092] During assembly, the battery pack 200 can be installed first and then the housing 113, or the housing 113 can be installed first and then the battery pack 200. In some embodiments, when the battery pack 200 is installed at the battery pack joint portion 140, a waterproof cover 150 is provided on the outside of the battery pack 200, and the waterproof cover 150 covers at least the top of the battery pack 200 to protect the battery pack 200.

[0093] In some embodiments, the battery pack 200 is disposed at a corner of the housing 113.

[0094] Refer to Figures 8 to 12 , the battery pack 200 is detachably disposed at the battery pack joint portion 140, and the insertion and extraction direction of the battery pack 200 can be set according to actual needs. The insertion and extraction direction of the battery pack 200 can be along the front-back direction, the left-right direction or the up-down direction, or can be set at an angle with any direction.

[0095] In some embodiments, the insertion and extraction direction of the battery pack 200 is along the direction of the first straight line A1, and the first straight line A1 extends substantially along the front-back direction. Refer to Figure 9 , the battery pack 200 is hidden in the housing 113, and the insertion and extraction direction of the battery pack 200 is along the D1 direction or the D2 direction. Refer to Figure 10 , one end of the battery pack 200 protrudes from the right side of the housing 113, and the insertion and extraction direction of the battery pack 200 is along the D3 direction or the D4 direction. Refer to Figure 11 , the battery pack 200 is hidden in the housing 113, and the insertion and extraction direction of the battery pack 200 is along the D5 direction. Refer to Figure 12 , one end of the battery pack 200 protrudes from the top of the housing 113, and the insertion and extraction direction of the battery pack 200 is along the D6 direction.

[0096] Refer to Figures 13 to 15 , the jack 100 further includes a power unit 160. The power unit 160 includes a motor 161, a reduction mechanism 162 and an actuator 163. The actuator 163 can drive the hydraulic component 130 to operate. The reduction mechanism 162 connects the motor 161 and the actuator 163, and reduces the rotational speed output by the motor 161 and then inputs it to the actuator 163. In one embodiment, the reduction mechanism 162 is located between the motor 161 and the actuator 163.

[0097] In some embodiments, the actuator 163 drives the hydraulic pump 131 to operate. The battery pack 200 is set to supply power to the motor 161. The motor shaft of the motor 161 extends along the second straight line A2 direction, and the hydraulic cylinder 132 moves along the third straight line A3 direction. The second straight line A2 is parallel or perpendicular to the third straight line A3, which is convenient for layout. The hydraulic pump 131 and the hydraulic cylinder 132 are connected by an oil pipeline 134.

[0098] In some embodiments, the reduction mechanism 162 includes a gearbox. The gearbox includes a box body and a transmission mechanism. The transmission mechanism includes an input shaft and an output shaft. The input shaft is connected to the motor shaft of the motor 161, and the output shaft is connected to the hydraulic pump. In some embodiments, the input shaft and the output shaft are coaxially arranged to reduce space occupation, and a planetary gear mechanism can be arranged between the input shaft and the output shaft.

[0099] Refer to Figure 16, the actuator 163 includes an output shaft and a cam 1631 disposed on the output shaft. The motor 161 drives the output shaft to rotate through a reduction mechanism 162, thereby driving the cam 1631 to rotate.

[0100] See Figures 13 to 18 , the hydraulic pump 131 has a power input end 1311, the cam 1631 acts on the power input end 1311, the hydraulic cylinder 132 has a power output end 1321, and the power output end 1321 acts on the lifting assembly 120. When the cam 1631 acts on the power input end 1311 to cause the plunger of the hydraulic pump 131 to apply pressure to the hydraulic oil, the one-way valve between the hydraulic pump 131 and the oil pot 135 closes, and the one-way valve between the hydraulic pump 131 and the hydraulic cylinder 132 opens. The hydraulic oil enters the hydraulic cylinder 132, causing the power output end 1321 of the hydraulic cylinder 132 to extend. The power output end 1321 acts on the lifting assembly 120, causing the lifting assembly 120 to lift.

[0101] When the hydraulic pump 131 stops pressurizing the hydraulic cylinder 132, the lifting assembly 120 remains in the lifted state. When the pressure relief valve 136 on the hydraulic oil circuit 133 is opened, the one-way valve between the hydraulic pump 131 and the hydraulic cylinder 132 closes, and the hydraulic oil in the hydraulic cylinder 132 flows back to the oil pot 135, causing the power output end 1321 of the hydraulic cylinder 132 to retract. The power output end 1321 acts on the lifting assembly 120 with a reduced lifting force, causing the lifting assembly to descend.

[0102] See Figures 17 to 20 , the hydraulic component 130 includes a solenoid valve 190. The solenoid valve 190 is set to open or close the pressure relief oil circuit 133 of the hydraulic component 130, and the solenoid valve 190 is in a powered-on state when the descending operating member is in a triggered state. The state of the solenoid valve 190 is controlled by the descending operating member. When the solenoid valve 190 is powered on, it relieves pressure, and when the solenoid valve 190 loses power, it maintains pressure. Among them, the solenoid valve 190 losing power includes the solenoid valve 190 having no power supply or abnormal power-off. When the solenoid valve 190 loses power, the jack 100 cannot descend, and the pressure relief valve 136 is in a normally closed state.

[0103] The reason why the solenoid valve 190 can open or close the pressure relief oil circuit 133 of the hydraulic component 130 is that the solenoid valve 190 is connected to the pressure relief valve 136 on the pressure relief oil circuit 133. The pressure relief valve 136 includes a pressure relief valve core 1361 and a pressure relief shaft 1362, and the pressure relief valve core 1361 can rotate around the pressure relief shaft 1362. The solenoid valve core 191 of the solenoid valve 190 is connected to the pressure relief valve core 1361 of the pressure relief valve 136. When the solenoid valve core 191 is powered on, it can act in a first direction, thereby driving the pressure relief valve core 1361 to act, causing the pressure relief valve 136 to be opened.

[0104] The movement direction of the solenoid valve core 191 of the solenoid valve 190 is called the valve pulling direction, and the valve pulling direction of the solenoid valve 190 has an angular relationship with the axis of the pressure relief oil passage 133. In some embodiments, the valve pulling direction of the solenoid valve 190 is perpendicular to the axis of the pressure relief oil passage 133.

[0105] The pressure relief oil passage 133 controlled by the solenoid valve 190 includes one or more manual switches. If the solenoid valve 190 is powered off, the manual switch can be operated to achieve pressure relief. Specifically, the user can achieve pressure relief through the manual switch, causing the jack 100 to descend. In some embodiments, the manual switch has an automatic reset function, and the reset position is the normally closed position of the pressure relief oil passage 133. By operating the manual switch, pressure relief can be achieved by directly acting on the pressure relief valve 136 manually, or by manually acting on the button or knob of the pressure relief valve 136 to achieve pressure relief by returning the oil.

[0106] See Figure 1 and Figure 9 , the jack 100 includes at least a first operating member 181, and the first operating member 181 is arranged to control the hydraulic component 130 to drive the lifting component 120 to act. The actions of the lifting component 120 include a lifting action, a descending action, and a pause action. In one embodiment, the lifting action is further divided into a fast lifting action and a slow lifting action, and the descending action is further divided into a fast descending action and a slow descending action.

[0107] The first operating member 181 can be a mechanical part or an electrical control part. By means of the number and state of the first operating member 181, the above various actions can be achieved. In some embodiments, the first operating member 181 is an electronically controlled operating member. Specifically, it can be a press key, a toggle key, or a push key. The first operating member 181 realizes the function of a switch by controlling the action of the lifting component 120. It can be a stepless speed regulation switch (trigger switch), or a trigger type switch (touch, micro, button switch).

[0108] In some embodiments, the first operating member 181 includes function keys, and the function keys can at least control the lifting component 120 to rise or fall.

[0109] In some embodiments, corresponding actions are performed by pressing different function keys. When the rising function key is pressed, the motor 161 starts and drives the hydraulic component 130 to cause the jack 100 to complete the lifting action; when the descending function key is pressed, the hydraulic component 130 is controlled to release pressure through an electrical control part (such as a solenoid valve) to cause the jack 100 to complete the descending action; when the pause function key is pressed, the action of the jack 100 pauses.

[0110] In some embodiments, the first operating member 181 includes two function keys, one function key is used to control the lifting component 120 to perform the lifting action, and the other function key is used to control the lifting component 120 to perform the descending action, and at most one of the two function keys is in a triggered state.

[0111] In some embodiments, the first operating member 181 includes three function keys. The first function key is used to control the lifting assembly 120 to perform the power-on operation of the whole machine. The second function key is used to control the lifting assembly 120 to perform the lifting action. The third function key is used to control the lifting assembly 120 to perform the lowering action.

[0112] In some embodiments, the first operating member 181 includes three function keys. The first function key is used to control the lifting assembly 120 to perform the fast lifting action. The second function key is used to control the lifting assembly 120 to perform the slow lifting action. The third function key is used to control the lifting assembly 120 to perform the lowering action. At most one of the three function keys is in the triggered state.

[0113] In some embodiments, the first operating member 181 includes three function keys. The first function key is used to control the lifting assembly 120 to perform the lifting action. The second function key is used to control the lifting assembly 120 to perform the pause action. The third function key is used to control the lifting assembly 120 to perform the lowering action. At most one of the three function keys is in the triggered state.

[0114] In some embodiments, the first operating member 181 includes four function keys. The first function key is used to control the lifting assembly 120 to perform the fast lifting action. The second function key is used to control the lifting assembly 120 to perform the slow lifting action. The third function key is used to control the lifting assembly 120 to perform the pause action. The fourth function key is used to control the lifting assembly 120 to perform the lowering action. At most one of the four function keys is in the triggered state.

[0115] In some embodiments, the fast lifting and slow lifting can be uniform lifting. In some embodiments, the lifting speed can be variable.

[0116] The lifting action of the lifting assembly 120 can be split into a first lifting stage and a second lifting stage. The first lifting stage is the process from when the lifting plate 121 has not contacted the object to be lifted to when it contacts the object to be lifted. The second lifting stage is the process from when the lifting plate 121 contacts the object to be lifted to when it lifts the object to be lifted to a certain height. The first lifting stage rises at a first lifting speed, and the second lifting stage rises at a second lifting speed. Here, the lifting speed refers to the moving speed of the lifting plate 121 in its moving direction. In this embodiment, the lifting speed is the speed at which the lifting plate 121 moves in the up and down direction.

[0117] In one embodiment, the first lifting speed is greater than the second lifting speed. With such a setting, the time spent by the jack 100 before touching the object to be lifted can be reduced, and the lifting efficiency can be improved.

[0118] In some embodiments, the jack 100 includes a load detection component configured to detect the load parameter of the lifting component 120, and the hydraulic component 130 adjusts the lifting speed of the lifting component 120 according to the load parameter. The greater the load, the smaller the lifting speed; the smaller the load, the greater the lifting speed. Among them, the load parameter may be the operating current of the motor 161. The load size is judged by the operating current. When the operating current is lower than the first threshold, it is judged as no-load, and the lifting component 120 can be quickly lifted. When the operating current is higher than the second threshold, it is judged as a large load, and the lifting speed of the lifting component 120 is reduced. The lifting speed of the lifting component 120 can be reduced in grades according to the difference between the current operating current and the first threshold. The load parameter may also be the magnitude of the vertical downward external force received by the lifting plate 121, or the magnitude of the hydraulic pressure provided by the hydraulic component 130.

[0119] In one embodiment, a rotational speed curve is preset. After the lifting plate 121 contacts the object to be lifted, the second lifting speed changes according to the rotational speed curve. That is, when the jack 100 is in a loaded state and the jack 100 lifts the object to be lifted upward, the second lifting speed is controlled at a preset speed to enable the jack 100 to achieve the maximum lifting efficiency.

[0120] In one embodiment, a constant target speed is preset. After the lifting plate 121 contacts the object to be lifted, the second lifting speed is the target speed. That is, when the jack 100 is in a loaded state, the second lifting speed is controlled at a preset speed to enable the jack 100 to achieve the maximum lifting efficiency.

[0121] The lifting component 120 has a storage position and a lifting limit position. During the lifting process, when the lifting component 120 moves to the lifting limit position, the lifting component 120 stops lifting. During the lowering process, when the lifting component 120 moves to the storage position, the lifting component 120 stops lowering.

[0122] Regarding the pressure relief of the hydraulic component 130, it can be manual pressure relief or electric pressure relief. The hydraulic component 130 includes a pressure relief oil circuit 133. The pressure relief oil circuit 133 has a pressure relief port, and a pressure relief valve 136 is provided at the pressure relief port. The principle of pressure relief is to open the pressure relief valve 136 so that the oil in the pressure relief oil circuit 133 flows back into the oil pot 135.

[0123] See Figures 13 to 15, the jack 100 includes at least a second operating member 182, and the second operating member 182 is configured to control the hydraulic component 130 to relieve pressure. The second operating member 182 can be a mechanical member or an electronically controlled operating member. In some embodiments, the second operating member 182 is a mechanical member, and the return pressure relief is achieved by directly manually acting on the pressure relief valve 136, or the return pressure relief is achieved by manually acting on the button or knob of the pressure relief valve 136. In some embodiments, the second operating member 182 includes a hand rocker and a sphere. The sphere is disposed in the pressure relief oil passage 133 of the hydraulic component 130 and is used to block the pressure relief oil passage 133. The hand rocker is configured to release or abut against the sphere. The hand rocker and the pressure relief oil passage 133 can be threadedly connected. The hand rocker abuts against the sphere to block the pressure relief oil passage 133. When the hand rocker is screwed out, the sphere becomes loose, and the oil in the pressure relief oil passage 133 can flow out to achieve pressure relief, and the jack 100 descends. The oil in the pressure relief oil passage 133 can flow back into the oil pot 135.

[0124] In some embodiments, the second operating member 182 is an electronically controlled operating member. The hydraulic component 130 includes a solenoid valve 190. The pressure relief valve 136 is connected to the solenoid valve 190. The state of the solenoid valve 190 is controlled by the second operating member 182 to further achieve the opening or closing of the pressure relief valve 136.

[0125] In some embodiments, the jack 100 includes a lowering operating member, and the lowering operating member is configured to control the hydraulic component 130 to relieve pressure in a triggered state. When the lowering operating member is triggered, the height of the lifting plate 121 automatically decreases. The lowering operating member realizes the one-key lowering function, which is convenient to operate and does not require manual screwing to relieve pressure. Even if the motor 161 stops rotating, the one-key lowering can still be achieved.

[0126] For the electrical control components, it is not limited to the above-mentioned first operating member 181, second operating member 182 and lowering operating member, and also includes function keys such as a power-on key and a power-off key. In some embodiments, the electrical control components are disposed on the housing 113. In some embodiments, the electrical control components are disposed on a remote control device.

[0127] In some embodiments, the jack 100 includes a remote control device. The remote control device can at least control the start and stop of the motor 161, and the remote control device can remotely control the operation of the jack 100. The remote control device is connected to the jack 100 in a wireless manner, including but not limited to wireless communication methods within the frequency band of 10 kHz to 2.4 GHz such as infrared communication, Bluetooth, 2.4 GHz communication, etc. The remote control device and the controller of the jack 100 can be matched one by one to prevent accidental control by a non-matching remote control. When the remote control device controls the operation of the controller, the distance between the controller and the remote control device is less than or equal to 5 m.

[0128] The lifting, lowering, and pausing actions of the jack 100 are achieved by controlling the motor 161 and the solenoid valve 190. In some embodiments, the pressure relief valve 136 is closed, the motor 161 is controlled to operate, and the hydraulic component 130 is driven to control the lifting component 120 to complete the lifting action; the motor 161 is controlled to stop rotating, and the pressure relief valve 136 is opened to complete the lowering action.

[0129] To prevent accidental triggering of the electric control component, when the lifting component 120 of the jack 100 is in a stationary state, after the first set duration from the moment the electric control component is triggered, the jack 100 starts to respond. During the rising process of the lifting component 120 of the jack 100, if an electric control component with a lowering or pausing function is triggered, the lifting component 120 immediately stops operating and does not enter the lowering mode. During the moving process of the lifting component 120 of the jack 100, from the moment the electric control component is triggered, the jack 100 immediately responds. In some embodiments, during the rising process of the lifting component 120 of the jack 100, if an electric control component with a pausing function is triggered, the lifting component 120 immediately stops operating. In some embodiments, when the lifting component 120 of the jack 100 is in the lifting state or the lowering state, triggering any one of the function keys can pause the movement of the lifting component 120 of the jack 100.

[0130] The jack 100 further includes an indicating component for indicating the working state of the jack 100. The indicating component includes a light-emitting element 170 and / or a buzzer. The light-emitting element 170 can be an LED lamp. The battery pack 200 can supply electrical energy to the indicating component.

[0131] When the light-emitting element 170 is used alone for indication, the number of the light-emitting elements 170 can be set as required, and the lighting and indication functions are achieved through the light-emitting element 170. Refer to Figure 21 , the light-emitting element 170 is arranged on the frame 110, specifically on the housing 113, and more specifically on the top surface of the housing 113 for easy observation. In some embodiments, the light-emitting element 170 can be lit or extinguished, and the change of its state can be automatically controlled by the control circuit or manually operated by a person. In some embodiments, the light-emitting element 170 can pop out or hide, saving space and protecting the light-emitting element 170. It can pop out perpendicular to the surface of the housing 113 or rotate relative to the surface of the housing 113. In some embodiments, the light-emitting element 170 is an LED lamp.

[0132] In some embodiments, when the jack 100 is in a normal working state, the light-emitting element 170 is constantly on; when the jack 100 is in an undervoltage state, the light-emitting element 170 blinks at a first blinking frequency; when the jack 100 is in a protection state, the light-emitting element 170 blinks at a second blinking frequency. The protection state includes overcurrent protection, overtemperature protection, stall protection, etc., and different blinking frequencies can also be set according to different protection states.

[0133] When using only the buzzer for indication, the number of buzzers can be set as needed, and the buzzer is controlled by different sounding frequencies and different volumes to achieve indication of different states. In some embodiments, when the jack 100 is in a normal working state, the buzzer does not sound; when the jack 100 is in an undervoltage state, the buzzer sounds at a first sounding frequency and a first volume; when the jack 100 is in a protection state, the buzzer sounds at a second sounding frequency and a second volume. The protection state includes overcurrent protection, overtemperature protection, stall protection, etc., and different sounding frequencies and volumes can also be set according to different protection states.

[0134] When both the light-emitting element 170 and the buzzer are set, the number of light-emitting elements 170 and the number of buzzers can be set as needed. The lighting function is achieved through the light-emitting element 170, and the indication function is achieved through the cooperation of the light-emitting element 170 and the buzzer. In some embodiments, when the jack 100 is in a normal working state, the light-emitting element 170 is constantly on and the buzzer does not sound; when the jack 100 is in an undervoltage state, the light-emitting element 170 blinks at a first blinking frequency, and the buzzer sounds at a first sounding frequency and a first volume; when the jack 100 is in a protection state, the light-emitting element 170 blinks at a second blinking frequency, and the buzzer sounds at a second sounding frequency and a second volume.

[0135] As Figure 22 shown, the jack 100a includes a light-emitting element 170a disposed near the traveling wheels 114. It is defined that when the lifting plate 121 is in a non-lifting state, the two traveling wheels 114 closest to the lifting plate 121 are the front wheels 1141 of the jack 100a, and the two traveling wheels 114 at the other end opposite to the front wheels 1141 are the rear wheels 1142 of the jack 100a. The light element 170a is located above the traveling wheels 114, and the light-emitting surface of the light-emitting element 170a is substantially perpendicular to the placement plane on which the plurality of traveling wheels 114 can be placed, so as to facilitate the user to illuminate dark and narrow spaces such as the bottom of the vehicle. In one embodiment, the light-emitting element 170a is disposed above the rear wheels 1142. In one embodiment, the light-emitting element 170a is disposed directly above the rear wheels 1142. The light-emitting element 170a can be configured to be foldably connected to the housing 113 to simultaneously achieve the use of small-space storage and lighting functions.

[0136] When the jack 100 is in a protected state, the indicating component is triggered, and at the same time, the power supply circuit of the motor 161 is cut off to ensure safety. The jack 100 includes a current detection module for detecting the operating current of the motor 161. When the operating current is greater than or equal to the first set current value, the indicating component is triggered, and at the same time, the power supply circuit of the motor 161 is cut off. The jack 100 includes a temperature detection module for detecting the operating temperature of the motor 161. When the operating temperature is greater than or equal to the first set temperature value, the indicating component is triggered, and at the same time, the power supply circuit of the motor 161 is cut off. The jack 100 includes a rotational speed detection module for detecting the operating rotational speed of the motor 161. When the operating rotational speed is greater than or equal to the first set rotational speed value, the indicating component is triggered, and at the same time, the power supply circuit of the motor 161 is cut off.

[0137] The lifting component 120 has a lifting state and a storage state. When the lifting component 120 is in the storage state, the lifting component 120 is located at the storage position. When the lifting component 120 is in the lifting state, the lifting component 120 can be locked at any position above the storage position.

[0138] During the lifting process of the lifting component 120, the stroke of the lifting component 120 is judged by a stroke sensor. When the jack 100 is lifted close to the end point, that is, the lifting limit position, the operation of the motor 161 is restricted. According to the distance between the lifting plate 121 and the object to be lifted, the lifting speed of the lifting component 120 is controlled. Among them, the stroke sensor can be a proximity switch, an optoelectronic switch or a Hall switch.

[0139] Restricting the operation of the motor 161 includes reducing the rotational speed of the motor 161 or cutting off the power supply circuit of the motor 161. When the distance between the lifting plate 121 and the object to be lifted is greater than or equal to the first set distance value, the lifting speed of the lifting component 120 is increased. When the distance between the lifting plate 121 and the object to be lifted is less than the second set distance value, the lifting speed of the lifting component 120 is decreased. The change in the lifting speed of the lifting component 120 can be changed by a fixed value each time.

[0140] The jack 100 includes a load detection component, and the load detection component is set to detect the load parameters of the lifting component 120. The hydraulic component 130 adjusts the lifting and lowering speed of the lifting component 120 according to the load parameters. In some embodiments, the load parameter is the operating current of the motor 161. When the operating current is less than or equal to the first threshold, it is judged as no-load, and the lifting speed of the lifting component 120 is increased. When the operating current is greater than or equal to the second threshold, it is judged as a large load, and the lifting speed of the lifting component 120 is decreased.

[0141] When the jack 100 is in a protected state, it is comprehensively evaluated according to various parameters whether to stop for maintenance or continue to complete the current operation.

[0142] The jack 100 includes a power detection module for detecting the remaining power of the battery pack 200. When the remaining power is less than or equal to the first power value, the jack 100 switches to the power-saving mode to increase the battery life of the battery pack 200. Meanwhile, the low power is indicated through an indicating component to remind the user to replace the battery pack 200. In the power-saving mode, the motor 161 is in the high-efficiency range and has a high working efficiency.

[0143] The jack 100 includes a controller. Electrically controlled components such as the above-mentioned electric control, solenoid valve 190, motor 161, detection module, and sensor are all electrically connected to the controller. The controller can control each component through programs and circuits, and its control principle is conventional technology, which will not be elaborated here.

[0144] See Figure 23 , in addition to the battery pack 200, the power supply can also be an external power source. The jack 100 can be connected to the discharge interface of the external power source to be powered by the external power source. In one embodiment, the external power source can be a vehicle-mounted power source, and the jack 100 can be connected to the discharge interface of the vehicle-mounted DC power source; alternatively, the jack 100 can be connected to the discharge interface of the vehicle-mounted AC power source. Currently, the discharge voltage of the vehicle-mounted DC power source is usually 12V, and the discharge voltage of the vehicle-mounted AC power source is usually 110V or 220V. A converter can be provided between the external power source and the jack 100, and the converter can be a DC-to-AC converter or an AC-to-DC converter to meet different usage requirements. Using the vehicle-mounted power source for power supply can save the electric energy of the battery pack 200 and increase the battery life.

[0145] To cooperate with the vehicle-mounted discharge interface, the jack 100 is provided with a power interface to access the vehicle-mounted discharge interface, and the vehicle-mounted discharge interface can receive the vehicle-mounted DC power source or the vehicle-mounted AC power source. Specifically, the power interface is configured as a DC round interface with a diameter of 5.5mm and can be connected to the discharge interface of the vehicle-mounted DC power source through a connecting wire. The power interface can also be connected to the discharge interface of the vehicle-mounted AC power source through an adapter.

[0146] It should be noted that the solution disclosed in the attached drawings of this application is a horizontal jack, and more specifically, a horizontal hydraulic jack. The maximum lifting weight of the jack 100 is about 2.5 tons. In one embodiment, the maximum lifting weight of the jack 100 is about 2 tons; in one embodiment, the maximum lifting weight of the jack 100 is about 1.5 tons. In one implementation, the diameter of the plunger at the power output end 1321 is 6mm - 10mm, the torque output by the actuator 163 is about 10N·m, 15N·m, or 20N·m, and the eccentricity of the cam 1631 of the actuator 163 is about 4mm.

[0147] The jack 100 further includes a handle assembly 115 (see Figure 1 ) connected to the frame 110. The handle assembly 115 is rotatable relative to the base 112. The handle assembly 115 includes a handle 1151 and a connecting rod 1152. The handle 1151 is for a user to hold to drag the jack 100 to move. The connecting rod 1152 connects the handle 1151 to the frame 110. A handle switch may be provided on the handle assembly 115. The handle switch is for a user to operate to control at least one of functions such as starting and stopping of the motor 161, movement of the lifting assembly 120, and starting and stopping of the light-emitting element 170. In one embodiment, the handle switch may be fixed to the handle assembly 115 or detachably mounted to the handle assembly 115. In one embodiment, the connecting rod 1152 is composed of a telescopic structure, so that the user can adjust the distance between the handle 1151 and the base 112 according to his own needs.

[0148] A control panel may also be provided on the handle assembly 115. At least one of functions such as the operating state of the motor 161, the movement state and position of the lifting assembly 120, and the state of the light-emitting element 170 may be displayed on the control panel. In one embodiment, the control panel may be provided on the housing 113. The handle assembly 115 is set in an arc shape, which has the advantage that the user can hold it at multiple angles along the handle 1151 and the force transmission is smooth. Figure 24 The shown handle assembly 115a is another embodiment of the handle assembly. The handle assembly 115a includes a handle 1151a and a connecting rod 1152a. A holding portion for a user to hold is provided on the handle 1151a. The holding portion of the handle 1151a extends along the extension direction of the connecting rod 1152a. That is to say, when the force applied by the user also extends along the extension direction of the connecting rod 1152a, it is easier to control the handle assembly 115a.

[0149] The basic principles, main features and advantages of the present application have been shown and described above. Those skilled in the art of this industry should understand that the above embodiments do not limit the present application in any form. Any technical solutions obtained by means of equivalent replacement or equivalent transformation fall within the protection scope of the present application.

Claims

1. A jack, comprising: A frame; A lifting assembly pivotally connected to the frame, one end of the lifting assembly including a lifting plate that can rise or fall, the lifting plate providing an upward lifting force for the object to be lifted; Characterized in that it further includes: A hydraulic assembly configured to drive the lifting assembly to perform a lifting action or a lowering action; A power unit including a motor, a reduction mechanism, and an actuator, the reduction mechanism being located between the motor and the actuator, and the actuator being capable of driving the hydraulic assembly to operate; A battery pack coupling portion for mounting a battery pack, the battery pack supplying power to at least the power unit.

2. The jack according to claim 1, characterized in that, The battery pack is detachably connected to the jack.

3. The jack according to claim 1, characterized in that, The insertion and extraction direction of the battery pack is along a first straight line direction, and the first straight line extends substantially along the front-rear direction.

4. The jack according to claim 1, characterized in that, The frame includes a base and a housing, the hydraulic assembly is disposed on the base, the housing covers the hydraulic assembly, and the battery pack is installed in the housing.

5. The jack according to claim 1, characterized in that, When the battery pack is installed in the battery pack coupling portion, a waterproof cover is provided on the outside of the battery pack, and the waterproof cover covers at least the top of the battery pack.

6. The jack according to claim 1, characterized in that, The lifting assembly includes a lifting arm, the frame includes a connecting portion, one end of the lifting arm is pivotally connected to the connecting portion, and the battery pack and the lifting plate are distributed on both sides of the connecting portion.

7. The jack according to claim 1, characterized in that, The jack includes at least a first operating member configured to control the hydraulic assembly to drive the lifting assembly to act.

8. The jack according to claim 7, characterized in that, The first operating member is an electronically controlled operating member.

9. The jack according to claim 1, characterized in that, The jack includes a load detection assembly configured to detect the load parameters of the lifting assembly, and the hydraulic assembly adjusts the lifting and lowering speed of the lifting assembly according to the load parameters.

10. The jack according to claim 7, characterized in that, The jack includes at least a second operating member configured to control the hydraulic assembly to release pressure.

11. The jack according to claim 1, characterized in that, The jack includes a lowering operating member configured to control the hydraulic assembly to release pressure in a triggered state. When the lowering operating member is triggered, the height of the lifting plate automatically decreases.

12. The jack according to claim 1, characterized in that, The hydraulic assembly includes a hydraulic pump and a hydraulic cylinder, the actuator drives the hydraulic pump to operate, the battery pack is configured to supply power to the motor, the motor shaft of the motor extends along a second straight line direction, the hydraulic cylinder acts along a third straight line direction, and the second straight line is parallel or perpendicular to the third straight line.

13. The jack according to claim 1, characterized in that, It further includes a light-emitting element disposed on the frame, the light-emitting element being configured to indicate the working state of the jack, and the light-emitting element can be lit or extinguished.

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