Wireless remote control electric jack

Abstract

The utility model relates to a wireless remote control electric jack, including jack base, be equipped with on jack base: hoisting spare, its first end upper area is through a rotating shaft swing assembly on jack base, and its second end has a hoisting platform, electric drive spare, its fixed assembly on the one side of base away from hoisting platform, its built -in has an executor module, and the executor module is integrated with wireless transceiver unit, its output and hoisting spare are connected to drive hoisting platform to lift or descend, battery package, it is detachable assembly on the one side of base close to electric drive spare, and battery package with electric drive spare electric connection, wireless remote controller, its built -in has wireless control unit of wireless communication of matching wireless transceiver unit of wireless communication of the utility model, to wireless remote control the start -stop of electric drive spare. The utility model has realized the non -contact type control of electric jack, and effectively eliminated the radial force of swing in drive mechanism, reduced the wear and tear of parts.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, specifically to a wireless remote-controlled electric jack. Background Technology

[0002] Existing electric jacks generally lack wireless remote control capabilities. Jack control primarily relies on control buttons integrated into the handle, which, due to its wired connection, becomes an essential accessory and is difficult or impossible to detach from the jack, resulting in poor portability when stored in a car trunk. Furthermore, when lifting heavy objects such as cars, users must crouch down to observe the lifting process, making it impossible to visually operate the handle buttons, significantly reducing ease of use. Meanwhile, the drive mechanism of electric jacks generally relies on a combination of cam and rocker arm. Specifically, the rocker arm and piston rod are located at opposite ends of a connecting rod, which is hinged in the middle via a movable seat. During operation, the cam drives the rocker arm to oscillate cyclically, causing the piston at the other end of the connecting rod to reciprocate within the piston chamber. This drives the oil in the reservoir into the pump chamber through the inlet channel, propelling the pump core forward. However, in this structure, the reciprocating oscillation of the connecting rod generates radial force. This force, transmitted to the piston, significantly increases the friction between the piston and the movable chamber wall, accelerating component wear.

[0003] To address this, we propose a wireless remote-controlled electric jack. Utility Model Content

[0004] This application provides a wireless remote-controlled electric jack to at least solve the problem that existing electric jacks generally do not have wireless remote control capabilities, and when lifting heavy objects such as cars, users need to squat down to observe the lifting situation, at which time the operation handle buttons cannot be visualized, greatly reducing the convenience of operation.

[0005] This application provides a wireless remote-controlled electric jack, including a jack base, wherein the jack base is provided with: The lifting component has its upper part at the first end movably mounted on the jack base via a rotating shaft, and its second end has a lifting platform. An electric drive unit is fixedly mounted on the side of the base away from the lifting platform. It has an actuator module built in and a wireless transceiver unit integrated on the actuator module. Its output end is connected to the lifting unit to drive the lifting platform to lift or lower. A battery pack is detachably mounted on the side of the base near the electric drive unit, and the battery pack is electrically connected to the electric drive unit. The wireless remote controller has a built-in wireless control unit that is matched with the wireless transceiver unit for wireless remote control of the start and stop of the electric drive component.

[0006] Optionally, the electric drive unit includes: The drive housing is fixed to the jack base and includes an assembly section and a pump chamber section. The assembly section is provided with an oil storage tank and an oil inlet channel connecting the pump chamber section and the oil storage tank. Two drive chambers are connected to the oil inlet channel. A plunger pump core is movably disposed within the pump chamber section, and its telescopic end extends out of the pump chamber section and is movably connected to the lower part of the first end of the lifting component. There are two pistons, which are movably assembled in the two drive cavities respectively, and each piston has a piston rod axially fixed in its middle. The other ends of the two piston rods extend to the outside of the drive cavity and are movably assembled inside the two ends of a moving sleeve. The middle connecting rod has its first end movably assembled in the middle of the moving sleeve, and its other end movably assembled with a connecting rod seat fixed on the outer wall of the assembly section. The main drive motor is fixedly assembled with the assembly section, and its output end extends into a movable slot opened on the assembly section and is movably assembled with a cam. The swing arm has a first end extending into the movable groove and having a circular cavity for movable assembly with the cam, and a second end extending into the moving sleeve and being coaxially and movably connected to one of the piston rods.

[0007] Optionally, the assembly section is further provided with an oil return channel connecting the pump chamber section and the oil storage tank, and the oil return channel is connected to the first oil drain valve chamber; The first drain valve cavity is movably fitted with a first valve core component that rotates to open / close the return oil channel, and one end of the first valve core component is connected to the output end of the drain motor to provide rotational driving force. The drain motor is fixedly assembled with the assembly section.

[0008] Optionally, the assembly section is further provided with a second oil return channel connecting the pump chamber section and the oil storage tank, and the second oil return channel is connected to a second oil drain valve chamber; The second drain valve cavity is movably fitted with a second valve core for opening / closing the return oil channel, and a manual drain rod is threadedly fitted inside the second drain valve cavity. The second valve core is fixed to the first end of the manual drain rod to manually operate the drain when the drain motor is abnormal or there is no power supply.

[0009] Optionally, the oil inlet channel is further provided with a plurality of check valves for controlling the unidirectional movement of the oil, the check valves including: A check chamber is provided on the assembly section and has a first check section and a second check section. The diameter of the first check section is smaller than the diameter of the second check section. The first check section is connected to the input side of the oil inlet channel, and the second check section is connected to the output side of the oil inlet channel. A plug is disposed on the open side of the check cavity to close the check cavity; The check ball is movably assembled within the first check section; An elastic element is disposed within the check cavity, with its two ends abutting against the plug and the check ball, respectively, so as to elastically drive the check ball to close the first check section and the input end of the oil inlet channel.

[0010] Optionally, the lifting component includes: There are two lifting arms, which are symmetrically arranged on both sides of the pump chamber section. The upper part of the first end is movably mounted on the base through a rotating shaft, and the second end is movably connected to the opposite sides of the lifting platform. The drive arm is U-shaped, with its lateral section fixedly connected to the telescopic end of the plunger pump core, and its two vertical sections movably connected to the lower part of the first end of the lifting arm. The auxiliary arms are two in number and symmetrically arranged on the outside of the two lifting arms. Their first ends are movably connected to the opposite sides of the lifting platform, and their second ends are movably mounted on the jack base.

[0011] Optionally, the lifting component further includes a lifting cover plate, which is disposed over the upper end face of the two lifting arms.

[0012] Optionally, it also includes: The handle has a first end movably mounted to one end of the base, and a second end has a remote control slot for storing and accommodating the wireless remote control.

[0013] Optionally, the handle includes: A pull rod seat is movably mounted on one end of the base and has a pull rod hole thereon; A tie rod, the first end of which is inserted into the tie rod hole and fixed radially by a bolt; The handle is fixed to the second end of the pull rod, and its upper end has a plug-in slot for storing and accommodating the wireless remote control.

[0014] Optionally, the jack base is horizontal, and the edge of the jack base is provided with at least four traveling wheels arranged in a matrix.

[0015] Optionally, the upper end of the electric drive unit is provided with a protective cover plate, and a fixing hole is provided on the protective cover plate. The second end of the manual oil drain rod passes through the fixing hole and is threaded with a knob cover to help fix the protective cover plate.

[0016] Optionally, the upper end of the protective cover is provided with a tool slot for accommodating repair tools.

[0017] Optionally, the wireless communication includes at least one of Bluetooth, cellular mobile network, Wi-Fi, NFC, and Zigbee.

[0018] Compared with related technologies, the wireless remote-controlled electric jack provided in this application has at least the following technical advantages: By establishing a communication link with the wireless remote control through the built-in wireless transceiver unit of the electric drive unit, user operation commands are converted into control signals for the electric drive unit, thus realizing non-contact control of the electric jack. This significantly expands the control radius of the jack, allowing operators to complete lifting operations without touching the jack, solving the problem of limited operating perspective in confined spaces. At the same time, the design of the wireless remote control, which is independent of the jack body, avoids cable tangling, improving the reliability of user operation. Furthermore, because the wireless remote control is independent of the jack body, users can simultaneously observe the lifting status within their field of vision and send control commands to the jack via the wireless remote control.

[0019] The movement of the swing arm is converted into the linear motion of the two pistons by the linkage structure of the moving sleeve and the central connecting rod. At the same time, the radial force is counteracted by the movable support of the central connecting rod, which prevents the piston from deviating in the drive chamber. This effectively eliminates the radial force generated by the swing, reduces the frictional resistance between the piston and the inner wall of the drive chamber, reduces component wear, extends the service life of the electric drive components, and improves the efficiency and stability of the hydraulic transmission.

[0020] Details of one or more embodiments of this application are set forth in the following drawings and description to make other features, objects and advantages of this application more readily apparent. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a three-dimensional schematic diagram of a wireless remote-controlled electric jack according to an exemplary embodiment.

[0023] Figure 2 This is one of the exploded views of a wireless remote-controlled electric jack structure according to an exemplary embodiment.

[0024] Figure 3 This is the second exploded view of a wireless remote-controlled electric jack structure according to an exemplary embodiment.

[0025] Figure 4 This is an exploded view of a portion of the structure of an electric drive unit according to an exemplary embodiment.

[0026] Attached diagram labeling: Jack base 10; Lifting component 20; Lifting platform 201; Lifting boom 202; Auxiliary boom 203; Rotating shaft 204; Drive boom 205; Lifting cover plate 206; Handle component 30; lever base 301; lever 302; handle 303; remote control slot 304; Wireless remote control 40; Electric drive component 50; drive housing 501; assembly section 5011; pump chamber section 5012; drive chamber 5013; first drain valve chamber 5014; second drain valve chamber 5015; 502 plunger pump core; Manual drain lever 503; knob cover 5031; second valve core 5032; Oil drain motor 504; First valve core component 5041; 505 Protective cover plate; 506 Main drive motor; 507 Swing arm; 508 Moving sleeve; 509 Piston rod; 510 Connecting rod; 511 Piston; 512 Check valve; 513 Connecting rod seat; Battery pack 60. Detailed Implementation

[0027] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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.

[0030] In related technologies, existing electric jacks generally lack wireless remote control capabilities. Jack control primarily relies on control buttons integrated into the handle, which, due to its wired connection, becomes an essential accessory and cannot be easily or completely detached from the jack, resulting in poor portability when stored in a car trunk. Furthermore, when lifting heavy objects such as cars, users need to crouch down to observe the lifting process, making it impossible to visually operate the handle buttons, significantly reducing operational convenience. Meanwhile, the drive mechanism of electric jacks generally relies on a combination of cam and rocker arm. Specifically, the rocker arm and piston rod are located at opposite ends of a connecting rod, which is hinged in the middle via a movable seat. During operation, the cam drives the rocker arm to oscillate cyclically, causing the piston at the other end of the connecting rod to reciprocate within the piston chamber. This drives the oil in the reservoir into the pump chamber through the inlet channel, propelling the pump core forward. However, in this structure, the reciprocating oscillation of the connecting rod generates radial force. This force, transmitted to the piston, significantly increases the friction between the piston and the movable chamber wall, accelerating component wear.

[0031] Based on the above, this utility model provides a wireless remote-controlled electric jack, which will be described in detail below with reference to specific embodiments and accompanying drawings.

[0032] Example 1 Embodiment 1 of this utility model provides a wireless remote-controlled electric jack. Figure 1 This is a three-dimensional schematic diagram of a wireless remote-controlled electric jack according to an exemplary embodiment. Figure 2 This is one of the exploded views of a wireless remote-controlled electric jack structure according to an exemplary embodiment. Figure 3 This is the second exploded view of a wireless remote-controlled electric jack structure according to an exemplary embodiment. Figures 1-3 As shown, the wireless remote-controlled electric jack includes a jack base 10, with a hollow equipment area inside the jack base 10 for mounting various components. Specifically, the equipment area of ​​the jack base 10 includes: The lifting component 20 has its upper part at its first end movably mounted on the jack base 10 via a rotating shaft 204, and its second end has a lifting platform 201. The electric drive unit 50 is fixedly mounted on the side of the base 10 away from the lifting platform 201. It has an actuator module built in and a wireless transceiver unit integrated on the actuator module. Its output end is connected to the lifting unit 20 to drive the lifting platform 201 to lift or lower. The battery pack 60 is detachably mounted on the side of the base 10 near the electric drive component 50, and the battery pack 60 is electrically connected to the electric drive component 50. In this embodiment, the battery pack 60 supplies power to the electric drive component 50 through a contact interface, thereby realizing a separate battery installation structure, which is convenient for replacement and reduces the main weight of the jack. It can also be understood that the electric drive component battery pack 60 and the electric drive component 50 are concentrated on the same side of the jack base 10, which reduces the risk of center of gravity shift.

[0033] The wireless remote controller 40 has a built-in wireless control unit that is matched with the wireless transceiver unit for wirelessly controlling the start and stop of the electric drive unit 30.

[0034] In this embodiment, the lifting component 20 forms a fulcrum with the jack base 10 via the rotating shaft 204. Driven by the output of the electric drive component 50, it rotates around the rotating shaft 204, thereby driving the lifting platform to rise and fall vertically. The direct connection between the lifting component 20 and the electric drive component 50 ensures efficient power transmission. This structure is basically the same as existing technology and will not be described in detail here. The improvement of this application lies in that the wireless transceiver unit built into the electric drive component 50 establishes a communication link with the wireless remote controller 40, converting user operation commands into control signals for the electric drive component 50, thereby realizing non-contact control of the electric jack.

[0035] Through the above technical solution, the operating radius of this application is greatly expanded, and the operator can complete the lifting operation without touching the jack equipment, which solves the problem of limited operating angle in a narrow space; at the same time, the design of the wireless remote control independent of the body avoids cable tangling, improves the reliability of user use, and since the wireless remote control 40 is independent of the jack body, the user can simultaneously observe the lifting status within the field of vision and send control commands to the jack equipment through the wireless remote control 40.

[0036] This application further proposes a specific structure for the electric drive component 50. Figure 4 This is an exploded view of a portion of the structure of an electric drive component according to an exemplary embodiment. Figures 1-4 As shown, the electric drive unit 50 includes: The drive housing 501 is fixed on the jack base 10 and includes an assembly section 5011 and a pump chamber section 5012. The assembly section 5011 is provided with an oil storage tank and an oil inlet channel connecting the pump chamber section 5012 and the oil storage tank. Two drive chambers 5013 are connected to the oil inlet channel. The plunger pump core 502 is movably disposed within the pump chamber section 5012, and its telescopic end extends out of the pump chamber section 5012 and is movably connected to the lower part of the first end of the lifting member 20, so as to convert the hydraulic thrust into the lifting action of the lifting member 20. There are two pistons 511, which are movably assembled in two drive cavities 5013 respectively. Each piston has a piston rod 509 axially fixed in its middle. The other ends of the two piston rods 509 extend to the outside of the drive cavity 5013 and are movably assembled inside the two ends of a moving sleeve 508. In this embodiment, the two piston rods 509 are hinged to the two ends of the moving sleeve 508 to form a symmetrical drive structure, which can balance the forces on both sides and avoid unilateral deviation. The middle connecting rod 510 has its first end movably assembled to the middle of the moving sleeve 508, and its other end movably assembled to a connecting rod seat 513 fixed on the outer wall of the assembly section 5011. In this embodiment, one end of the middle connecting rod 510 is hinged to the middle of the moving sleeve 508, and the other end is hinged to the fixed connecting rod seat 513, forming a movable support structure to eliminate the radial force generated by the swing. The main drive motor 506 is fixedly assembled with the assembly section 5011, and its output end extends into the movable slot opened on the assembly section 5011 and is movably assembled with a cam. The first end of the swing arm 507 extends into the movable groove and has a circular cavity that is movably assembled with the cam, and the second end extends into the interior of the moving sleeve 508 and is coaxially and movably connected to one of the piston rods 509.

[0037] In this embodiment, the main drive motor 506 drives the cam to rotate, causing the swing arm 507 to oscillate cyclically within the movable slot. Since the end of the swing arm 507 is coaxially connected to one end of the moving sleeve 508 with one of the piston rods 509, it pushes the moving sleeve 508 to oscillate back and forth around the central connecting rod 510 as the axis of motion. The two piston rods 509 are respectively connected to the two ends of the moving sleeve 508, thereby driving the two pistons 511 to oscillate back and forth in the two driving chambers 5013. The central connecting rod 510 rotates around the connecting rod seat 513 when the moving sleeve 508 oscillates, converting the radial force generated at both ends of the moving sleeve 508 into the axial movement of the central connecting rod 510, thus avoiding lateral friction between the piston rod 509 and the inner wall of the driving chamber 5013.

[0038] Compared to existing technologies, in traditional electric jacks, the swing arm 507 and piston rod (piston) are located at opposite ends of a connecting rod, with a fixed seat hinged in the middle of the connecting rod. The radial force generated during swinging causes lateral friction on the piston rod (piston). The technical solution of this application, through a linkage structure between the moving sleeve 508 and the central connecting rod 510, converts the swinging motion of the swing arm 507 into the linear motion of the two pistons 511. Simultaneously, the movable support of the central connecting rod 510 counteracts the radial force, preventing the pistons 511 from shifting within the drive chamber 5013. Through this technical solution, this application effectively eliminates the radial force generated by the swinging of the connecting rod in the drive mechanism, reduces the frictional resistance between the pistons 511 and the inner wall of the drive chamber 5013, reduces component wear, extends the service life of the electric drive component 50, and improves the efficiency and stability of the hydraulic transmission.

[0039] Continue to refer to the appendix Figure 4 The present application embodiment further proposes that an oil return channel is provided in the assembly section 5011, which connects the pump chamber section 5012 and the oil storage tank. The oil return channel is used to guide the oil in the pump chamber section 5012 back to the oil storage tank when the plunger pump core 502 retracts. The first oil drain valve chamber 5014 is connected to the oil return channel. A first valve core 5041, which rotates to open / close the return oil passage, is movably assembled inside the first drain valve chamber 5014. One end of the first valve core 5041 is connected to the output end of the drain motor 504 to provide rotational driving force. The drain motor 504 is fixedly assembled with the assembly section 5011. In this embodiment, the first valve core 5041 has a rotating sealing surface and can adopt a conical valve core or a ball valve structure. By rotating around its own axis, the contact area with the return oil passage is changed, thereby controlling the on / off state of the oil passage.

[0040] In this embodiment, when the plunger pump core 502 needs to retract, the drain motor 504 drives the first valve core 5041 to rotate to the opening angle, and the high-pressure oil in the pump chamber section 5012 flows back to the oil storage tank through the return oil channel. Furthermore, in conjunction with a high-precision flow sensor, the flow cross-sectional area of ​​the return oil channel can be controlled by adjusting the rotation angle of the first valve core 5041. The rotation angle of the drain motor 504 and the position of the first valve core 5041 form a closed-loop control, ensuring that the oil return rate matches the movement speed of the plunger pump core 502 in real time. Through the direct linkage between the rotation of the first valve core 5041 and the drive motor, linear opening and closing control of the return oil channel is achieved, avoiding the response delay caused by manual adjustment.

[0041] Through the above technical solution, the technical solution of this application embodiment, together with the wireless remote controller 40, can realize the remote control of the oil draining operation of the electric jack, and the wireless remote control of the oil draining and return, thereby making the lifting component 20 descend smoothly, eliminating the operation gap and steps of the traditional manual rotary valve, and ensuring the real-time synchronization of the valve core opening and closing action with the electrical control signal.

[0042] Continue to refer to the appendix Figure 4 Furthermore, this application embodiment proposes that the oil inlet channel is also provided with a plurality of check valve components 512 for controlling the unidirectional movement of the oil. The check valve component 512 includes: Check chamber 5015 is provided on assembly section 5011 and has a first check section and a second check section. The diameter of the first check section is smaller than the diameter of the second check section. That is, the check chamber in this embodiment is an oil passage structure with a stepped inner diameter. The difference in diameter between the first check section and the second check section will form a pressure difference action area. The first check section is connected to the input side of the oil inlet channel, and the second check section is connected to the output side of the oil inlet channel. A plug is disposed on the open side of the check cavity to close the check cavity. In this embodiment, the plug is threadedly fixed inside the check cavity. The check ball is movable within the first check section; An elastic element is disposed in the check cavity, and its two ends abut against the plug and the check ball respectively, so as to elastically drive the check ball to close the first check section and the input end position of the oil inlet channel; in this embodiment, the elastic element is a helical compression spring or a wave spring sheet.

[0043] In this embodiment, when the oil flows in the forward direction, the input-side pressure pushes the check ball to overcome the resistance of the elastic element and move towards the second check section. As the diameter of the second check section increases, the oil flows through the gap between the first check section and the check ball into the output side. However, when the oil flows in the reverse direction, the output-side pressure acts on the check ball. At this time, the diameter of the second check section is larger than the diameter of the check ball, so it cannot form an effective thrust. The elastic element presses the check ball tightly at the inlet of the first check section to achieve a seal. Through the above technical solution, this embodiment of the application achieves reliable control of unidirectional oil flow, prevents the decrease in pumping efficiency caused by oil backflow, and extends the service life of the hydraulic drive system.

[0044] Continue to refer to the appendix Figure 2-3 The embodiments of this application further propose that the lifting component 20 includes: There are two lifting arms 202, which are symmetrically arranged on both sides of the pump chamber section 5012. The upper part of the first end is movably mounted on the base 10 through a rotating shaft 204, and the second end is movably connected to the opposite sides of the lifting platform 201. The drive arm 205 is U-shaped. Its lateral section is fixedly connected to the telescopic end of the plunger pump core 502, and its two vertical sections are respectively movably connected to the lower part of the first end of the lifting arm 202. Two auxiliary booms 203 are symmetrically arranged on the outside of the two lifting booms 202. Their first ends are movably connected to the opposite sides of the lifting platform 201, and their second ends are movably mounted on the jack base 10.

[0045] In this embodiment, the linear motion of the plunger pump core 502 is converted into the rotational motion of the lifting arm 202 along the rotation axis 204 by the drive arm 205. The two lifting arms 205 rotate synchronously around the rotation axis 204 to lift the lifting platform 201. The U-shaped structure of the drive arm 205 forms symmetrical hinge points between the vertical sections on both sides and the lower part of the lifting arm 202, eliminating the eccentric load caused by unilateral force. The auxiliary arm 203 and the lifting arm 202 together form a parallelogram mechanism. During the lifting process, the lifting platform 201 and the jack base 10 form a double support chain through the movable connection points, which collaboratively disperses the lateral load to the four sets of hinge points, thereby avoiding the additional lateral force caused by uneven force distribution and improving the working stability of the jack.

[0046] Continue to refer to the appendix Figure 1-3 The embodiments of this application further propose that the lifting component 20 also includes a lifting cover plate 206, which is covered on the upper end face of the two lifting arms 202; In this embodiment, the covering arrangement of the lifting cover plate 206 means that the edge of the lifting cover plate 206 extends to the upper edge of the two lifting arms 202 to form a continuous closed surface, thereby preventing the parts between the lifting arms 202, such as the pump chamber section 5012, the plunger pump core 502, and the drive arm 205, from being exposed, which would cause water, oil, and dust dripping from the lifted object to intrude.

[0047] Continue to refer to the appendix Figure 1-3 It also includes: a handle 30, the first end of which is movably mounted to one end of the base 10, and the second end of which has a plug-in slot 304 for storing and accommodating the wireless remote control 40. In this embodiment, the remote control slot 304 can be formed by injection molding or machining into a cavity structure adapted to the size of the wireless remote control 40, and the cavity depth can be set to cover more than two-thirds of the thickness of the wireless remote control 40; the handle 30 specifically includes: The pull rod seat 301 is movably mounted on one end of the base 10 and has a pull rod hole thereon; Tie rod 302, the first end of which is inserted into the tie rod hole and fixed radially by a bolt; The handle 303 is fixed to the second end of the lever 302, and its upper end has a remote control slot 304 for storing and accommodating the wireless remote control 40.

[0048] In this embodiment, the pull rod base 301 and the jack base 10 form a rotatable connection structure, allowing the handle 30 to fold around the pivot to a parallel state with the jack base 10, reducing the overall space occupied by the equipment. The pull rod 302, after being inserted into the pull rod hole via a plug-in method, uses radial bolts to penetrate the side wall of the hole and the pull rod body, forming a three-point mechanical lock. This ensures load-bearing strength while allowing for easy manual assembly and disassembly. The remote control slot 304 at the top of the handle 303 can physically engage with the groove on the outer shell of the wireless remote control 40 through a limiting boss or protrusion on the inner wall, ensuring the wireless remote control 40 remains stable after insertion and preventing it from falling off during transportation. When operation is required, the handle 30 can be extended to the working angle, the pull rod 302 remains in a rigid support state, and the operator can drag the jack equipment by holding the handle 303 with one hand. Simultaneously, the wireless remote control 40 can be directly removed from the remote control slot 304 for wireless control.

[0049] Through the above technical solution, the embodiments of this application achieve rapid separation of the electric jack and the handle 30, allowing the jack device to be decomposed into two independent modules: the main body and the handle 30. This solves the problem of low storage space utilization caused by traditional integrated handles. At the same time, the combined design of the wireless remote control 40 and the handle 30 eliminates the time loss of searching for the remote control device during operation, avoiding the situation where the device cannot be used normally due to the loss of the remote control.

[0050] Continue to refer to the appendix Figure 1-3 Furthermore, this application embodiment proposes that the jack base 10 is horizontal, and the edge of the jack base 10 is provided with at least four traveling wheels distributed in a matrix.

[0051] In this embodiment, the horizontal base reduces vertical space occupation through a flattened design, allowing it to fit snugly against the gaps in the bottom or side wall of a car trunk when stored, facilitating vehicle mounting. The wheels facilitate the movement of the jack equipment. Furthermore, it can be understood that the wheels may also include a locking mechanism, such as a press-type buckle to restrict wheel rotation, ensuring that the jack base 10 remains stationary during lifting operations.

[0052] Continue to refer to the appendix Figure 1-3 Furthermore, this application embodiment proposes that the upper end of the protective cover 505 is provided with a tool slot for accommodating repair tools.

[0053] In this embodiment, the tool slots are designed to allow users to store repair tools in one place for easy access.

[0054] This application further proposes that wireless communication includes at least one of Bluetooth, cellular mobile network, Wi-Fi, NFC, and Zigbee.

[0055] In this embodiment, wireless communication can employ a single wireless communication protocol or integrate multiple wireless communication protocols to form a complementary communication redundancy system. When Bluetooth and NFC are used in combination, devices can be quickly paired and then switched to continuous control; when cellular mobile networks and Wi-Fi are used in combination, communication links can be automatically switched under different network coverage conditions; Zigbee supports networked collaborative operation of multiple jack devices. In complex electromagnetic environments, when a single communication method is interfered with, a backup protocol can be automatically activated to maintain the control link. For example, in a garage with metal shielding effects, the Zigbee protocol, with its strong anti-interference capabilities, is preferred; in outdoor rescue scenarios, cellular mobile networks ensure the transmission of remote control commands.

[0056] Example 2 The difference between this embodiment and Embodiment 1 is that, continuing to refer to Appendix 1... Figure 4 Embodiment 2 of this utility model further proposes that there are two oil return channels, the first oil return channel is connected to the first oil drain valve chamber 5014, and the second oil return channel is connected to the second oil drain valve chamber 5015. A second valve core 5032 that can open / close a return oil passage is movably assembled inside the second drain valve chamber 5015, and a manual drain rod 503 is threaded inside the second drain valve chamber 5015. The second valve core 5032 is fixed to the first end of the manual drain rod 503 to manually drain oil when the drain motor 504 is abnormal or there is no power supply.

[0057] In this embodiment, when the oil drain motor 504 is abnormal or there is no power supply, the electric jack needs to be reset after use. At this time, rotate the manual oil drain rod 503 to gradually raise the second valve core 5032 so that the second valve core 5032 leaves the blocked position of the return oil channel, opens the second return oil channel, realizes the retraction of the plunger pump core 502, and the lifting part 20 descends and resets. Specifically, the second drain valve chamber 5015 can be configured as a cylindrical cavity with an inner diameter larger than that of the return oil channel. The first end of the second drain valve chamber 5015 is connected to the input end of the return oil channel, and the output end of the return oil channel is located on the side wall of the second drain valve chamber 5015 near the first end. Under normal conditions, the second valve core 5032 is spherically sealed at the input end of the return oil channel. The drain is opened and closed by wireless electric control of the first valve core 5041 on the first return oil channel. When the drain motor 504 is abnormal or there is no power supply, the manual drain rod 503 is rotated to gradually raise the second valve core 5032 so that the second valve core 5032 leaves the input end position of the return oil channel, and the second return oil channel is opened to drain oil, ensuring the normal reset and recovery of the jack.

[0058] Continue to refer to the appendix Figure 1-3The present application embodiment further proposes that the upper end of the electric drive component 50 is provided with a protective cover plate 505, and a fixing hole is provided on the protective cover plate 505. The second end of the manual oil release rod 503 passes through the fixing hole and is threaded with a knob cover 5031 to assist in fixing the protective cover plate 505.

[0059] In this embodiment, the protective cover 505, in conjunction with the jack base 10, provides multi-directional protection for the electric drive component 50, preventing damage. It is understood that the knob cover 5031 can normally be rotated to directly rotate the manual drain lever 503 for controlling manual draining; its secondary function is also to assist in fixing the protective cover 505.

[0060] In summary, the wireless remote-controlled electric jack provided by this utility model establishes a communication link with the wireless remote controller 40 through the built-in wireless transceiver unit of the electric drive unit 50, converting user operation commands into control signals for the electric drive unit 50, thereby realizing non-contact control of the electric jack. This significantly expands the control radius of the jack, allowing operators to complete lifting operations without touching the jack, solving the problem of limited operating angle in confined spaces. Simultaneously, the independent design of the wireless remote controller avoids cable tangling, improving user reliability. Furthermore, since the wireless remote controller 40 is independent of the jack body, users can simultaneously observe the lifting status within their field of vision and send control commands to the jack via the wireless remote controller 40.

[0061] Furthermore, through the linkage structure between the moving sleeve 508 and the central connecting rod 510, the swing of the swing arm 507 is converted into the linear motion of the two pistons 511. At the same time, the movable support of the central connecting rod 510 is used to counteract the radial force, preventing the pistons 511 from shifting within the drive chamber 5013. This effectively eliminates the radial force generated by the swing, reduces the frictional resistance between the pistons 511 and the inner wall of the drive chamber 5013, reduces component wear, extends the service life of the electric drive component 50, and improves the efficiency and stability of the hydraulic transmission.

[0062] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A wireless remote-controlled electric jack, comprising a jack base, characterized in that, The jack base is equipped with: The lifting component has its upper part at the first end movably mounted on the jack base via a rotating shaft, and its second end has a lifting platform. An electric drive unit is fixedly mounted on the side of the base away from the lifting platform. It has an actuator module built in and a wireless transceiver unit integrated on the actuator module. Its output end is connected to the lifting unit to drive the lifting platform to lift or lower. A battery pack is detachably mounted on the side of the base near the electric drive unit, and the battery pack is electrically connected to the electric drive unit. The wireless remote controller has a built-in wireless control unit that is matched with the wireless transceiver unit for wireless remote control of the start and stop of the electric drive component.

2. The wireless remote-controlled electric jack as described in claim 1, characterized in that, The electric drive component includes: The drive housing is fixed to the jack base and includes an assembly section and a pump chamber section. The assembly section is provided with an oil storage tank and an oil inlet channel connecting the pump chamber section and the oil storage tank. Two drive chambers are connected to the oil inlet channel. A plunger pump core is movably disposed within the pump chamber section, and its telescopic end extends out of the pump chamber section and is movably connected to the lower part of the first end of the lifting component. There are two pistons, which are movably assembled in the two drive cavities respectively, and each piston has a piston rod axially fixed in its middle. The other ends of the two piston rods extend to the outside of the drive cavity and are movably assembled inside the two ends of a moving sleeve. The middle connecting rod has its first end movably assembled in the middle of the moving sleeve, and its other end movably assembled with a connecting rod seat fixed on the outer wall of the assembly section. The main drive motor is fixedly assembled with the assembly section, and its output end extends into a movable slot opened on the assembly section and is movably assembled with a cam. The swing arm has a first end extending into the movable groove and having a circular cavity for movable assembly with the cam, and a second end extending into the moving sleeve and being coaxially and movably connected to one of the piston rods.

3. The wireless remote-controlled electric jack as described in claim 2, characterized in that, The assembly section is also provided with an oil return channel that connects the pump chamber section and the oil storage tank, and the oil return channel is connected to the first oil drain valve chamber. The first drain valve cavity is movably fitted with a first valve core component that rotates to open / close the return oil channel, and one end of the first valve core component is connected to the output end of the drain motor to provide rotational driving force. The drain motor is fixedly assembled with the assembly section.

4. The wireless remote-controlled electric jack as described in claim 3, characterized in that, The assembly section is also provided with a second oil return channel that connects the pump chamber section and the oil storage tank, and the second oil return channel is connected to a second oil drain valve chamber. The second drain valve cavity is movably fitted with a second valve core for opening / closing the return oil channel, and a manual drain rod is threadedly fitted inside the second drain valve cavity. The second valve core is fixed to the first end of the manual drain rod to manually operate the drain when the drain motor is abnormal or there is no power supply.

5. The wireless remote-controlled electric jack as described in claim 2, characterized in that, The oil inlet channel is also equipped with several check valves that control the unidirectional movement of the oil. The check valves include: A check chamber is provided on the assembly section and has a first check section and a second check section. The diameter of the first check section is smaller than the diameter of the second check section. The first check section is connected to the input side of the oil inlet channel, and the second check section is connected to the output side of the oil inlet channel. A plug is disposed on the open side of the check cavity to close the check cavity; The check ball is movably assembled within the first check section; An elastic element is disposed within the check cavity, with its two ends abutting against the plug and the check ball, respectively, so as to elastically drive the check ball to close the first check section and the input end of the oil inlet channel.

6. The wireless remote-controlled electric jack as described in claim 1, characterized in that, The lifting components include: There are two lifting arms, which are symmetrically arranged on both sides of the pump chamber section. The upper part of the first end is movably mounted on the base through a rotating shaft, and the second end is movably connected to the opposite sides of the lifting platform. The drive arm is U-shaped, with its lateral section fixedly connected to the telescopic end of the plunger pump core, and its two vertical sections movably connected to the lower part of the first end of the lifting arm. The auxiliary arms are two in number and symmetrically arranged on the outside of the two lifting arms. Their first ends are movably connected to the opposite sides of the lifting platform, and their second ends are movably mounted on the jack base.

7. The wireless remote-controlled electric jack as described in claim 6, characterized in that, The lifting component also includes a lifting cover plate, which is disposed in a covering manner on the upper end face of the two lifting arms.

8. The wireless remote-controlled electric jack as described in claim 1, characterized in that, It also includes: The handle has a first end movably mounted to one end of the base, and a second end has a remote control slot for storing and accommodating the wireless remote control.

9. The wireless remote-controlled electric jack as described in claim 8, characterized in that, The handle includes: A pull rod seat is movably mounted on one end of the base and has a pull rod hole thereon; A tie rod, the first end of which is inserted into the tie rod hole and fixed radially by a bolt; The handle is fixed to the second end of the pull rod, and its upper end has a plug-in slot for storing and accommodating the wireless remote control.

10. The wireless remote-controlled electric jack as described in claim 1, characterized in that, The jack base is horizontal, and at least four traveling wheels arranged in a matrix are provided on the edge of the jack base.

11. The wireless remote-controlled electric jack as described in claim 4, characterized in that, The upper end of the electric drive unit is provided with a protective cover plate, and a fixing hole is provided on the protective cover plate. The second end of the manual oil drain rod passes through the fixing hole and is threaded with a knob cover to help fix the protective cover plate.

12. The wireless remote-controlled electric jack as described in claim 11, characterized in that, The upper end of the protective cover is provided with a tool slot for accommodating repair tools.

13. The wireless remote-controlled electric jack as described in claim 1, characterized in that, The wireless communication includes at least one of Bluetooth, cellular mobile network, Wi-Fi, NFC, and Zigbee.

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