Car lifting jack capable of supporting car body

Abstract

The utility model relates to the technical field of car lifting jacks, and discloses a car lifting jack capable of supporting a car body, the car lifting jack comprises a machine body, a bracket, a lifting mechanism and a locking mechanism, the bracket is connected to the machine body in a sliding mode, the lifting mechanism is connected to the machine body, the lifting mechanism is detachably connected with the bracket, and the locking mechanism is arranged on the machine body. The lifting mechanism is used for driving the bracket to ascend and descend, the locking mechanism is connected to the bracket, and when the lifting mechanism is separated from the bracket, the locking mechanism locks the bracket on the machine body. The device has the effect that the vehicle can be erected and supported conveniently.

Description

Technical Field

[0001] The present application relates to the field of vehicle lifting machine technology, and in particular to a vehicle lifting machine capable of supporting a vehicle body. Background Art

[0002] At present, rail transit has been vigorously developed due to its advantages such as large capacity, frequent operation, and no congestion due to collective control. It plays an increasingly important role in people's daily travel.

[0003] In order to ensure the safety of rail transit equipment in operation, rail vehicles need to be regularly inspected and maintained. During the inspection, the vehicle needs to be lifted by a vehicle crane to separate the carriage from the chassis, making it easier to inspect the vehicle.

[0004] Most existing vehicle lifting machines use a transmission mechanism of a screw nut, with a bracket fixedly connected to the nut. The bracket is used to support the vehicle. The vehicle is lifted to a certain height under the drive of the screw nut. In order to avoid the screw being damaged during long-term support of the vehicle, after the vehicle is lifted to a certain height, the staff will place multiple iron horses under the vehicle to support the vehicle, and then remove the vehicle lifting machine to avoid damage to the vehicle. This results in a large number of operating steps in the entire vehicle lifting and supporting process, and there is a problem that the vehicle lifting and supporting operation is relatively cumbersome. Utility Model Content

[0005] In order to alleviate the problem of complicated operation when lifting a vehicle, the present application provides a vehicle lifting machine that can support the vehicle body.

[0006] The present application provides a vehicle lifting machine capable of supporting a vehicle body, which adopts the following technical solution:

[0007] A vehicle lifting machine capable of supporting a vehicle body comprises a body, a bracket, a lifting mechanism and a locking mechanism, wherein the bracket is slidably connected to the body, the lifting mechanism is connected to the body, the lifting mechanism and the bracket are detachably connected, the lifting mechanism is used to drive the bracket to rise and fall, the locking mechanism is connected to the bracket, and when the lifting mechanism is separated from the bracket, the locking mechanism locks the bracket to the body.

[0008] By adopting the above technical solution, the bracket and the lifting mechanism are set to be detachably connected. After the vehicle is lifted, the locking mechanism is used to lock the bracket to the body to fix the bracket. Then the lifting mechanism is separated from the bracket, and the body and the bracket are used to support the vehicle. This can avoid continuous force on the lifting mechanism during the process of supporting the vehicle. At the same time, there is no need to replace supporting mechanisms such as iron horses, thereby improving the convenience of supporting the vehicle.

[0009] Preferably, the lifting mechanism includes a first motor, a screw and a nut, the first motor is fixedly connected to the machine body, the screw is rotatably connected to the machine body, the first motor is transmission-connected to the screw, the nut is threadedly connected to the screw, a support block is fixedly connected to the bracket, and the nut is inserted into the bottom of the support block.

[0010] By adopting the above technical solution, the first motor is used to drive the lead screw to rotate and drive the nut to rise and fall, and the bracket can be pushed upward through the support block to lift the vehicle. When the locking mechanism locks the bracket on the machine body, the first motor drives the lead screw to reverse, which can drive the nut to descend and separate the nut from the support block, thereby avoiding the pressure of the vehicle on the nut and reducing the possibility of damage to the lead screw.

[0011] Preferably, a detection switch is provided on the nut, and the detection switch is used to detect the distance between the nut and the support block, and the detection switch is electrically connected to the first motor through a controller.

[0012] By adopting the above technical solution and using the detection switch to detect the distance between the nut and the support block, it can be ensured that the nut and the support block are in a separated state.

[0013] Preferably, the bracket includes a lifting frame and a sliding frame, the lifting frame is slidably connected to the body, the lifting frame slides along the height direction of the body, the sliding frame is slidably connected to the lifting frame along the horizontal direction, and a pushing member is provided on the lifting frame, and the pushing member is connected to the sliding frame to drive the sliding frame to slide.

[0014] By adopting the above technical solution, the sliding frame is pushed to slide by the pushing member, so that the extension distance of the sliding frame can be controlled, thereby facilitating the support of the vehicle.

[0015] Preferably, the pushing member includes a rotating rod, a gear and a rack, the rotating rod is rotatably connected to the lifting frame, the gear is coaxially fixedly connected to the rotating rod, the rack is fixedly connected to the sliding frame, the rack is parallel to the length direction of the sliding frame, and the gear is meshingly connected to the rack.

[0016] By adopting the above technical solution, when the position of the sliding frame needs to be adjusted, the gear is driven to rotate by the rotating rod to drive the rack to slide, and the sliding of the rack drives the sliding frame to move, thereby realizing the adjustment of the position of the sliding frame.

[0017] Preferably, the locking mechanism includes a driving member and a locking block, the locking block is slidably connected to the lifting frame, the driving member is connected to the lifting frame, the driving member is connected to the locking block to drive the locking block to slide, and a locking hole adapted to the locking block is opened on the body.

[0018] By adopting the above technical solution, after the vehicle is lifted up by the bracket, the locking block is driven to slide by the driving member so that the locking block is inserted into the locking hole of the body, so that the bracket and the body can be fixed, thereby maintaining continuous support for the vehicle.

[0019] Preferably, two locking blocks are provided, and both locking blocks are connected to the driving member, and the driving member drives the two locking blocks to move towards or away from each other, and locking holes are provided on both sides of the body, and the two locking blocks are arranged in a one-to-one correspondence with the two groups of locking holes located on both sides of the frame.

[0020] By adopting the above technical solution, when fixing the bracket, the two locking blocks are driven to be inserted into the locking holes on both sides of the body respectively to support and fix the bracket, so that both sides of the bracket can be fixed to the body, thereby improving the supporting strength and stability of the vehicle.

[0021] Preferably, the driving member includes a pushing rod and two pushing rods, the pushing rod is rotatably connected to the supporting block, the middle part of the pushing rod is rotatably connected to the supporting block, the two pushing rods are respectively hinged at both ends of the pushing rod, the two pushing rods are arranged in a one-to-one correspondence with the two locking blocks, and each of the pushing rods has one end away from the pushing rod hinged to the corresponding locking block.

[0022] By adopting the above technical solution, the push rod can be rotated to make the push rod push the two push rods to rotate synchronously, and then the two locking blocks can slide synchronously, thereby improving the convenience of driving the two locking blocks.

[0023] In summary, this application at least includes the following beneficial technical effects:

[0024] 1. By using the setting of the locking mechanism, when the locking mechanism locks the bracket on the machine body, the first motor drives the lead screw to reverse, which can drive the nut to descend, so that the nut is separated from the bracket, thereby avoiding the pressure of the vehicle from acting on the nut and reducing the possibility of damage to the lead screw;

[0025] 2. By setting a detection switch on the nut and using the detection switch to detect the distance between the nut and the support block, it can be ensured that the nut and the support block are in a separated state;

[0026] 3. By configuring the bracket as a lifting frame and a sliding frame, and using a pushing member to push the sliding frame to slide, the extension distance of the sliding frame can be controlled, thereby facilitating support of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0028] Figure 2 is a schematic diagram of the structure of the bracket in the embodiment of the present application;

[0029] Figure 3 It is a schematic diagram of the structure of the nut in the embodiment of the present application;

[0030] Figure 4 It is a schematic diagram of the structure of the pusher in the embodiment of the present application;

[0031] Figure 5 is a schematic structural diagram of the locking mechanism in a fixed state of the bracket in an embodiment of the present application;

[0032] Figure 6 It is a structural schematic diagram of the locking mechanism for releasing the bracket from a fixed state in an embodiment of the present application.

[0033] : Reference numerals: 100, machine body; 200, bracket; 210, lifting frame; 220, sliding frame; 230, pushing member; 231, rotating rod; 232, gear; 233, rack; 240, supporting block; 300, lifting mechanism; 310, first motor; 320, lead screw; 330, nut; 400, locking mechanism; 410, driving member; 411, pushing rod; 412, pushing rod; 420, locking block; 430, locking hole; 440, insert rod; 500, detection switch. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-6 This application is described in further detail.

[0035] The embodiment of the present application discloses a vehicle lifting machine capable of supporting a vehicle body.

[0036] Reference Figure 1 and Figure 2 A vehicle lifting machine capable of supporting a vehicle body comprises a body 100, and a plurality of moving wheels are installed at the bottom of the body 100. A bracket 200 is slidably connected to the body 100, and the bracket 200 slides in a vertical direction. The bracket 200 is used to support the vehicle, and a lifting mechanism 300 is installed on the body 100, and the lifting mechanism 300 is used to drive the bracket 200 to rise and fall.

[0037] Reference Figure 2 and Figure 3The lifting mechanism 300 includes a first motor 310, which is fixedly connected to the top of the machine body 100. The main shaft of the first motor 310 is coaxially fixedly connected with a lead screw 320, which is vertically arranged and rotatably connected to the machine body 100. A nut 330 is threadedly connected to the lead screw 320, which is slidably connected to the machine body 100. A support block 240 is fixedly connected to the bracket 200, and the nut 330 is located at the bottom of the bracket 200. A slot is provided on the bottom surface of the support block 240, and the horizontal cross-section of the slot is hexagonal. The nut 330 can be inserted into the slot at the bottom of the bracket 200, and the nut 330 is plugged into the support block 240. A locking mechanism 400 is installed on the bracket 200, and the locking mechanism 400 is used to fix the bracket 200 to the machine body 100.

[0038] Reference Figure 1 and Figure 2 The bracket 200 includes a lifting frame 210 and a sliding frame 220. The lifting frame 210 is slidably connected to the body 100. The bracket 240 is fixedly connected to the lifting frame 210. The sliding frame 220 is slidably connected to the lifting frame 210. The sliding frame 220 slides on the lifting frame 210 in a horizontal direction. A pushing member 230 is installed on the lifting frame 210, and the pushing member 230 is used to push the sliding frame 220 to slide.

[0039] Reference Figure 2 and Figure 4 The pusher 230 includes a rotating rod 231 rotatably connected to the lifting frame 210. The rotating rod 231 is arranged horizontally. One end of the rotating rod 231 extends out of the lifting frame 210 and is fixedly connected to a rotating handle. Two gears 232 are coaxially fixedly connected to the rotating rod 231. The two gears 232 are arranged at intervals along the length direction of the rotating rod 231. Two racks 233 are fixedly connected to the sliding frame 220. The two gears 232 are arranged one by one with the two racks 233. The gears 232 are meshed and connected with their corresponding racks 233. When lifting the vehicle, the staff rotates the rotating rod 231 to push the sliding frame 220 to slide through the cooperation of the gears 232 and the racks 233, so as to adjust the position of the sliding frame 220 and facilitate the acceptance of the vehicle.

[0040] Reference Figure 2 , Figure 5 and Figure 6 The locking mechanism 400 includes a driving member 410 and two locking blocks 420. The two locking blocks 420 are respectively arranged at positions on both sides of the lifting frame 210. The two locking blocks 420 are slidably connected to the lifting frame 210, and the two locking blocks 420 slide in a direction of approaching or moving away from each other.

[0041] The driving member 410 includes a pushing rod 411 rotatably connected to the supporting block 240, the rotation axis of the pushing rod 411 is located in the middle of the pushing rod 411, the rotation axis of the pushing rod 411 is perpendicular to the length direction of the pushing rod 411, and both ends of the pushing rod 411 are hinged with pushing rods 412, the two pushing rods 412 are arranged in a one-to-one correspondence with the two locking blocks 420, and each pushing rod 412 is hinged at one end away from the pushing rod 411 with the corresponding locking block 420, and a handle is fixedly connected to the pushing rod 411. The staff holds the handle and rotates the pushing rod 411 to push the two pushing rods 412 to slide, and then push the two locking blocks 420 to slide.

[0042] Reference Figure 1 , Figure 2 and Figure 5 The machine body 100 is provided with two groups of locking holes 430, which are respectively located at the positions on both sides of the machine body 100. The two groups of locking holes 430 are arranged in one-to-one correspondence with the two locking blocks 420. Each group of locking holes 430 includes a plurality of locking holes 430, which are arranged at intervals along the height direction of the machine body 100. The locking block 420 can be inserted into one of the corresponding locking holes 430. When the vehicle is to be erected, after the vehicle is lifted, the handle is held and the push rod 411 is rotated, and the two push rods 412 can be pushed to slide by the push rod 411, and then the two locking blocks 420 can be pushed to be inserted into the locking holes 430 on both sides of the machine body 100, respectively, so that the lifting frame 210 can be fixed, and then the lead screw 320 is driven in the reverse direction to rotate, so that the nut 330 is separated from the support block 240, so that the nut 330 is prevented from being subjected to force, thereby preventing the lead screw 320 from being damaged due to long-term force.

[0043] Reference Figure 5 and Figure 6 Each push rod 412 is provided with an insertion rod 440, and the insertion rod 440 is slidably connected with the push rod 412 through which it is provided. Two insertion holes are provided on the push rod 411, and the two insertion rods 440 are arranged one by one with the two insertion holes, and each insertion rod 440 is inserted into its corresponding insertion hole. When the push rod 411 is rotated to insert the two locking blocks 420 into the locking hole 430, one of the insertion rods 440 is inserted into its corresponding insertion hole, so that the push rod 411 and the push rod 412 can be locked, so as to prevent the locking block 420 from coming out of the locking hole 430 when the push rod 411 rotates; when the push rod 411 is rotated to retract the two locking blocks 420, another insertion rod 440 is inserted into its corresponding insertion hole, so as to realize the locking of the push rod 411 and the push rod 412 again, so as to prevent the locking block 420 from rubbing against the machine body 100 during the lifting and lowering process of the bracket 200.

[0044] Reference Figure 3 and Figure 5The screw nut 330 is fixedly connected with a detection switch 500, and the detection switch 500 is used to detect the distance between the screw nut 330 and the support block 240. The body 100 is equipped with a controller, and the detection switch 500 is electrically connected to the controller. The detection switch 500 is electrically connected to the first motor 310 through the controller. The detection switch 500 can detect the distance between the screw nut 330 and the support block 240. When the detection switch 500 detects that the screw nut 330 is separated from the support block 240, the first motor 310 can be turned off in time by controlling the controller.

[0045] The implementation principle of the vehicle lifting machine that can support the vehicle body in the embodiment of the present application is as follows: by setting the nut 330 and the support block 240 to be detachably connected, when lifting the vehicle, the first motor 310 is used to drive the screw 320 to rotate, and after driving the bracket 200 to rise and lift the vehicle, the staff rotates the push rod 411 to push the two locking blocks 420 to be inserted into the two locking holes 430 on the body 100 respectively, so that the bracket 200 can be fixed, so that the vehicle can be supported for a long time, and then the nut 330 is driven to separate from the support block 240, so that the pressure of the vehicle can be avoided from acting on the nut 330, reducing the possibility of damage to the screw 320. At the same time, there is no need to replace the support mechanism such as the iron horse, thereby improving the convenience of supporting the vehicle.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A vehicle lifting machine capable of supporting a vehicle body, characterized in that: The invention comprises a machine body (100), a bracket (200), a lifting mechanism (300) and a locking mechanism (400), wherein the bracket (200) is slidably connected to the machine body (100), the lifting mechanism (300) is connected to the machine body (100), the lifting mechanism (300) and the bracket (200) are detachably connected, the lifting mechanism (300) is used to drive the bracket (200) to rise and fall, and the locking mechanism (400) is connected to the bracket (200); when the lifting mechanism (300) and the bracket (200) are separated, the locking mechanism (400) locks the bracket (200) on the machine body (100).

2. A vehicle lifting machine capable of supporting a vehicle body according to claim 1, characterized in that: The lifting mechanism (300) comprises a first motor (310), a lead screw (320) and a nut (330); the first motor (310) is fixedly connected to the machine body (100); the lead screw (320) is rotatably connected to the machine body (100); the first motor (310) is transmission-connected to the lead screw (320); the nut (330) is threadedly connected to the lead screw (320); a support block (240) is fixedly connected to the bracket (200); and the nut (330) is plugged into the bottom of the support block (240).

3. A vehicle lifting machine capable of supporting a vehicle body according to claim 2, characterized in that: The nut (330) is provided with a detection switch (500), the detection switch (500) being used to detect the distance between the nut (330) and the support block (240), and the detection switch (500) is electrically connected to the first motor (310) via a controller.

4. A vehicle lifting machine capable of supporting a vehicle body according to claim 2, characterized in that: The bracket (200) comprises a lifting frame (210) and a sliding frame (220); the lifting frame (210) is slidably connected to the machine body (100); the lifting frame (210) slides along the height direction of the machine body (100); the sliding frame (220) is slidably connected to the lifting frame (210) along the horizontal direction; a pushing member (230) is provided on the lifting frame (210); the pushing member (230) is connected to the sliding frame (220) to drive the sliding frame (220) to slide.

5. A vehicle lifting machine capable of supporting a vehicle body according to claim 4, characterized in that: The pushing member (230) comprises a rotating rod (231), a gear (232) and a rack (233); the rotating rod (231) is rotatably connected to the lifting frame (210); the gear (232) is coaxially fixedly connected to the rotating rod (231); the rack (233) is fixedly connected to the sliding frame (220); the rack (233) is parallel to the length direction of the sliding frame (220); and the gear (232) is meshingly connected to the rack (233).

6. A vehicle lifting machine capable of supporting a vehicle body according to claim 4, characterized in that: The locking mechanism (400) comprises a driving member (410) and a locking block (420); the locking block (420) is slidably connected to the lifting frame (210); the driving member (410) is connected to the lifting frame (210); the driving member (410) is connected to the locking block (420) to drive the locking block (420) to slide; and a locking hole (430) adapted to the locking block (420) is provided on the machine body (100).

7. A vehicle lifting machine capable of supporting a vehicle body according to claim 6, characterized in that: Two locking blocks (420) are provided, and both locking blocks (420) are connected to the driving member (410). The driving member (410) drives the two locking blocks (420) to move in a direction of approaching or moving away from each other. Locking holes (430) are provided on both sides of the body (100), and the two locking blocks (420) are arranged in a one-to-one correspondence with the two groups of locking holes (430) located on both sides of the frame.

8. A vehicle lifting machine capable of supporting a vehicle body according to claim 7, characterized in that: The driving member (410) comprises a pushing rod (411) and two pushing rods (412); the pushing rod (411) is rotatably connected to the supporting block (240); the middle portion of the pushing rod (411) is rotatably connected to the supporting block (240); the two pushing rods (412) are respectively hinged at two ends of the pushing rod (411); the two pushing rods (412) are arranged in a one-to-one correspondence with the two locking blocks (420); and one end of each pushing rod (411) away from the pushing rod (411) is hinged to the corresponding locking block (420).

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