Trench type automobile lifting device

Abstract

The utility model relates to a trench type automobile lifting device and belongs to the technical field of automobile maintenance, the trench type automobile lifting device comprises two walls and a base located between the walls, a supporting plate is arranged above the base, and a lifting mechanism for adjusting the height of the supporting plate is arranged in the base. Two safety mechanisms for limiting the lifting mechanism are arranged on the upper surface of an inner cavity of the base, and the lifting mechanism comprises a moving assembly and a limiting assembly. According to the trench type automobile lifting device, after an automobile moves to the supporting plate, a first motor drives a rotating rod to rotate, the rotating rod drives two worms to rotate together through a transmission assembly, worm wheels are driven to rotate together through rotation of the worms, lead screws are driven to rotate together through the worm wheels, and four rod sleeves are driven to move simultaneously through rotation of the four lead screws; and when the rod sleeve moves, the rod sleeve can assist in moving under the action of the pulleys, so that the stability of the rod sleeve during moving is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile maintenance, in particular to a trench type automobile lifting device. Background Art

[0002] In the automobile repair industry, lifts are indispensable equipment used to lift the car to a certain height for bottom inspection. Currently, there are many types of car lifts on the market, such as hydraulic lifts, electric lifts, etc. Although these lifts can meet basic lifting needs, they still need to be improved in terms of operational convenience, space utilization and safety.

[0003] Existing hydraulic lifts usually drive the lifting platform to rise and fall through a hydraulic system. This type of lift has a complex structure and high maintenance costs. Electric lifts achieve lifting functions through a motor-driven lead screw or chain mechanism. Although the structure is relatively simple, it still has shortcomings in stability. Hydraulic lifts have a complex structure and high maintenance costs, and hydraulic oil is prone to leakage, causing environmental pollution. Although electric lifts have a simple structure, they may shake during the lifting process, affecting the stability and safety of the operation. Therefore, the present application proposes a trench type car lifting device to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a trench type automobile lifting device, which has the advantage of convenient lifting and solves the problem of inconvenient lifting of the existing trench type automobile lifting devices.

[0005] To achieve the above object, the utility model provides the following technical solutions: a trench type automobile lifting device, comprising two walls and a base located between the walls, a support plate is provided above the base, a lifting mechanism for adjusting the height of the support plate is provided inside the base, and two safety mechanisms for limiting the lifting mechanism are provided on the upper surface of the inner cavity of the base;

[0006] The lifting mechanism includes a moving component and a limiting component. The moving component includes two vertical plates fixed to the lower surface of the base inner cavity, a first motor fixed to the left side of the vertical plate at the right end, a rotating rod fixed to the output shaft of the first motor, two worm gears rotatably connected between the left and right sides of the base inner cavity through a bearing seat, a transmission component arranged on the rotating rod and the two worm gears, four lead screws rotatably connected to the lower surface of the base inner cavity through a bearing seat, and a worm wheel fixed to the outer surface of the lead screw and meshing with the worm gear.

[0007] By adopting this technical solution, the lifting mechanism drives the support plate to move to lift the car, and the lifting mechanism is limited by the safety mechanism to improve the stability and safety of the lifting mechanism.

[0008] Furthermore, the limiting assembly includes a rod sleeve threadedly connected to the outer surface of the screw rod, a plurality of limiting plates fixed to the opposite sides of the two rod sleeves, and a plurality of pulleys fixed to the left and right sides of the inner cavity of the base.

[0009] By adopting this technical solution, the rod sleeve can move more smoothly through the pulley and play a positioning role.

[0010] Furthermore, the transmission assembly includes two first sprockets fixed to the outer surface of the rotating rod, a second sprocket fixed to the outer surface of the worm, a first chain transmission-connected to the first sprocket at the left end and the outer surface of the second sprocket at the front end, and a second chain transmission-connected to the first sprocket at the right end and the outer surface of the second sprocket at the rear end.

[0011] By adopting this technical solution, the rotating rod drives the two worms to rotate simultaneously through the transmission assembly.

[0012] Furthermore, the left side of the rotating rod is rotatably connected to the right side of the left end vertical plate through a bearing seat, and the supporting plate is fixed to the upper surfaces of the four rod sleeves.

[0013] By adopting this technical solution, the stability of the rotating rod is increased during rotation, and the support plate is driven to move through the four rod sleeves.

[0014] Furthermore, the rod sleeve is a rectangular parallelepiped, and four square holes are opened on the upper surface of the base, and the rod sleeve is slidably connected to the inside of the square holes.

[0015] By adopting this technical solution, it is convenient for the rod sleeve to drive the support plate to move and limit the rod sleeve.

[0016] Furthermore, the safety mechanism includes a movable component and a clamping component, the movable component includes two boxes fixed to the upper surface of the inner cavity of the base, a horizontal plate fixed between the front and rear sides of the inner cavity of the box, a second motor fixed to the upper surface of the horizontal plate, and a cam fixed to the output shaft of the second motor, and two through holes are provided on the opposite sides of the two boxes.

[0017] By adopting this technical solution, the lifting mechanism is limited by the safety mechanism, thereby improving the stability and safety of the lifting mechanism.

[0018] Furthermore, the clamping assembly includes a sliding rod slidably connected to the inside of the through hole, a spring sleeved on the outer surface of the sliding rod, a fixing plate fixed to the opposite sides of the left and right groups of sliding rods, a connecting plate fixed to the opposite sides of the left and right groups of sliding rods, four clamping blocks fixed to the opposite sides of the two connecting plates, and a plurality of equally spaced clamping grooves are provided on the opposite sides of the two rod sleeves.

[0019] By adopting this technical solution, the rod sleeve is limited to prevent the car from falling when the rod sleeve is abnormal.

[0020] Furthermore, the opposite sides of the left and right springs are respectively fixed to the opposite sides of the two fixing plates, and the opposite sides of the left and right springs are respectively fixed to the opposite sides of the inner cavities of the two boxes.

[0021] By adopting this technical solution, the fixing plate is reset by the spring, and the fixing plate drives the connecting plate to move through the sliding rod, so that the clamping block is away from the inside of the clamping slot, the limitation on the rod sleeve is released, and the movement of the rod sleeve is convenient.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] 1. The trench type car lifting device, through the lifting mechanism, the first motor drives the rotating rod to rotate, the rotating rod drives two worms to rotate together through the transmission assembly, the worm makes the worm wheel and the lead screw rotate together through the worm, and drives the four rod sleeves and the support plate to move together to lift the car. When the rod sleeve moves, it will assist the movement under the action of the pulley, thereby improving the stability of the rod sleeve when moving.

[0024] 2. The trench type car lifting device has a safety mechanism. The second motor drives the cam to rotate, so that the cam pushes the fixed plate to move. The fixed plate drives the connecting plate and the card block to move together through the sliding rod and squeezes the spring, so that the card block is stuck in the inside of the card slot, limiting the rod sleeve and the support plate to prevent the support plate from shaking, improving the stability of the support plate, and preventing the support plate and the car from falling, thereby improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the utility model;

[0026] Figure 2 It is a top view structural diagram of the lifting mechanism of the utility model;

[0027] Figure 3 This is a three-dimensional appearance diagram of the rod sleeve and the limiting plate of the utility model;

[0028] Figure 4 For this utility model Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0029] In the figure: 1. base; 2. lifting mechanism; 201. vertical plate; 202. first motor; 203. rotating rod; 204 transmission assembly; 205. worm; 206. worm wheel; 207. lead screw; 208. rod sleeve; 209. limit plate; 210. pulley; 3. safety mechanism; 301. box; 302. horizontal plate; 303. second motor; 304. cam; 305. through hole; 306. sliding rod; 307. spring; 308. fixing plate; 309. connecting plate; 310. block; 311. slot; 4. support plate; 5. wall. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] See also Figure 1 The trench type automobile lifting device in this embodiment includes two walls 5 and a base 1 located between the walls 5. The trench is formed by the two walls 5. A support plate 4 is provided above the base 1 for placing the automobile. A lifting mechanism 2 for adjusting the height of the support plate 4 is provided inside the base 1. The support plate 4 is driven to move by the lifting mechanism 2 to lift the automobile. Two safety mechanisms 3 for limiting the lifting mechanism 2 are provided on the upper surface of the inner cavity of the base 1 to limit the lifting mechanism 2 and improve the stability and safety of the lifting mechanism 2.

[0032] See also Figures 1 to 3 In order to facilitate lifting the car, the lifting mechanism 2 in this embodiment includes a moving component and a limiting component. The moving component includes two vertical plates 201 fixed to the lower surface of the inner cavity of the base 1, a first motor 202 fixed to the left side of the right end vertical plate 201, a rotating rod 203 fixed to the output shaft of the first motor 202, two worms 205 rotatably connected between the left and right sides of the inner cavity of the base 1 through a bearing seat, a transmission component 204 arranged on the rotating rod 203 and the two worms 205, four screw rods 207 rotatably connected to the lower surface of the inner cavity of the base 1 through a bearing seat, and a worm wheel 206 fixed to the outer surface of the screw rod 207 and meshing with the worm 205. The rotating rod 203 drives the two worms 205 to rotate simultaneously through the transmission component 204, and drives the worm wheel 206 and the screw rod 207 to rotate together.

[0033] The limiting assembly includes a rod sleeve 208 threadedly connected to the outer surface of the screw rod 207, a plurality of limiting plates 209 fixed to the opposite sides of the two rod sleeves 208, and a plurality of pulleys 210 fixed to the left and right sides of the inner cavity of the base 1. The pulley 210 is located between the two limiting plates 209. The pulley 210 enables the rod sleeve 208 to move more smoothly and plays a positioning role.

[0034] Among them, the transmission assembly 204 includes two first sprockets fixed to the outer surface of the rotating rod 203, a second sprocket fixed to the outer surface of the worm 205, a first chain connected to the outer surface of the first sprocket at the left end and the second sprocket at the front end, and a second chain connected to the outer surface of the first sprocket at the right end and the second sprocket at the rear end. The rotating rod 203 drives the two worms 205 to rotate simultaneously through the transmission assembly 204.

[0035] In addition, the left side of the rotating rod 203 is rotatably connected to the right side of the left end vertical plate 201 through a bearing seat, which increases the stability of the rotating rod 203 during rotation. The support plate 4 is fixed to the upper surface of the four rod sleeves 208, and the support plate 4 is driven to move through the rod sleeves 208.

[0036] In addition, the rod sleeve 208 is a rectangular parallelepiped, and four square holes are opened on the upper surface of the base 1. The rod sleeve 208 is slidably connected to the inside of the square holes, which makes it convenient for the rod sleeve 208 to drive the support plate 4 to move and limit the rod sleeve 208.

[0037] In the lifting mechanism 2 of this embodiment, the first motor 202 drives the rotating rod 203 to rotate, and the rotating rod 203 drives the two worms 205 to rotate together through the transmission assembly 204. The worm 205 causes the worm wheel 206 and the lead screw 207 to rotate together, and drives the four rod sleeves 208 and the support plate 4 to move together to lift the car. When the rod sleeve 208 moves, it will assist in the movement under the action of the pulley 210, thereby improving the stability of the rod sleeve 208 when moving.

[0038] See also Figure 4 In order to limit the rod sleeve 208, the safety mechanism 3 in this embodiment includes a movable component and a clamping component. The movable component includes two boxes 301 fixed to the upper surface of the inner cavity of the base 1, a horizontal plate 302 fixed between the front and rear sides of the inner cavity of the box 301, a second motor 303 fixed to the upper surface of the horizontal plate 302, and a cam 304 fixed to the output shaft of the second motor 303. Two through holes 305 are provided on the opposite sides of the two boxes 301.

[0039] The clamping assembly includes a slide bar 306 slidably connected to the inside of the through hole 305, a spring 307 sleeved on the outer surface of the slide bar 306, a fixing plate 308 fixed to the opposite side of the left and right groups of slide bars 306, a connecting plate 309 fixed to the opposite side of the left and right groups of slide bars 306, four clamping blocks 310 fixed to the opposite side of the two connecting plates 309, and a plurality of equidistantly distributed clamping grooves 311 are provided on the opposite side of the two rod sleeves 208.

[0040] Among them, the opposite sides of the two springs 307 are respectively fixed to the opposite sides of the two fixing plates 308, and the opposite sides of the left and right springs 307 are respectively fixed to the opposite sides of the inner cavities of the two boxes 301. The fixing plate 308 is reset by the spring 307, and the fixing plate 308 drives the connecting plate 309 to move through the sliding rod 306, so that the blocking block 310 is away from the inside of the card slot 311, thereby releasing the limit on the rod sleeve 208 and facilitating the movement of the rod sleeve 208.

[0041] It is understandable that when an abnormality occurs to the rod sleeve 208 and the support plate 4, the clamping block 310 is clamped into the inside of the clamping slot 311 to limit the rod sleeve 208 and prevent the car from falling, thereby improving safety performance.

[0042] It should be noted that a detector is provided on the lower surface of the box body 301 for monitoring the movement of the rod sleeve 208. When a problem with the movement of the rod sleeve 208 is detected, the detector is used to control the start of the second motor 303.

[0043] In the safety mechanism 3 of this embodiment, the second motor 303 drives the cam 304 to rotate, so that the cam 304 pushes the fixed plate 308 to move, and the fixed plate 308 drives the connecting plate 309 and the block 310 to move together through the sliding rod 306 and squeeze the spring 307, so that the block 310 is stuck in the inside of the slot 311, limiting the rod sleeve 208 and the support plate 4, preventing the support plate 4 from shaking, and improving the stability of the support plate 4.

[0044] The electrical components appearing in the text are all electrically connected to the controller and the power supply. The control method of the utility model is controlled by the controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power supply is also common knowledge in this field. The utility model is mainly used to protect mechanical devices, so the utility model will no longer explain the control method and circuit connection in detail.

[0045] The working principle of the above embodiment is:

[0046] (1) After the automobile moves onto the support plate 4, the first motor 202 is started. The first motor 202 drives the rotating rod 203 and the two first sprockets to rotate together. The first sprocket at the left end drives the second sprocket at the front end to rotate together through the first chain. The first sprocket at the right end drives the second sprocket at the rear end to rotate together through the second chain. The worm 205 is driven to rotate together through the second sprocket. The worm 205 rotates, and the worm wheel 206 is driven to rotate together. The lead screw 207 is driven to rotate together through the worm wheel 206. The four lead screws 207 rotate together, and the four rod sleeves 208 are driven to move simultaneously, and the support plate 4 is driven to move together to lift the automobile. When the rod sleeve 208 moves, it will be assisted in moving under the action of the pulley 210, thereby improving the stability of the rod sleeve 208 when moving.

[0047] (2) When it is necessary to limit the position of the rod sleeve 208, the second motor 303 is started. The second motor 303 drives the cam 304 to rotate. When the cam 304 rotates, it abuts against the fixed plate 308 and pushes the fixed plate 308 to move. The fixed plate 308 drives the connecting plate 309 to move and squeeze the spring 307 through the sliding rod 306. When the connecting plate 309 moves, it drives the block 310 to move together, so that the block 310 is stuck in the inside of the slot 311, limiting the position of the rod sleeve 208 and the support plate 4, preventing the support plate 4 from shaking, improving the stability of the support plate 4, and preventing the support plate 4 and the car from falling, thereby improving safety.

Claims

1. A trench type vehicle lifting device, comprising two walls (5) and a base (1) located between the walls (5), characterized in that: A support plate (4) is provided above the base (1); a lifting mechanism (2) for adjusting the height of the support plate (4) is provided inside the base (1); and two safety mechanisms (3) for limiting the position of the lifting mechanism (2) are provided on the upper surface of the inner cavity of the base (1); The lifting mechanism (2) comprises a moving assembly and a limiting assembly, wherein the moving assembly comprises two vertical plates (201) fixed to the lower surface of the inner cavity of the base (1), a first motor (202) fixed to the left side of the vertical plate (201) at the right end, a rotating rod (203) fixed to the output shaft of the first motor (202), two worm gears (205) rotatably connected between the left and right sides of the inner cavity of the base (1) through a bearing seat, a transmission assembly (204) arranged on the rotating rod (203) and the two worm gears (205), four lead screws (207) rotatably connected to the lower surface of the inner cavity of the base (1) through a bearing seat, and a worm wheel (206) fixed to the outer surface of the lead screw (207) and meshing with the worm gear (205).

2. The trench type vehicle lifting device according to claim 1, characterized in that: The limiting assembly comprises a rod sleeve (208) threadedly connected to the outer surface of the screw rod (207), a plurality of limiting plates (209) fixed to opposite sides of two rod sleeves (208), and a plurality of pulleys (210) fixed to the left and right sides of the inner cavity of the base (1).

3. The trench type vehicle lifting device according to claim 1, characterized in that: The transmission assembly (204) comprises two first sprockets fixed to the outer surface of the rotating rod (203), a second sprocket fixed to the outer surface of the worm (205), a first chain drivingly connected to the first sprocket at the left end and the outer surface of the second sprocket at the front end, and a second chain drivingly connected to the first sprocket at the right end and the outer surface of the second sprocket at the rear end.

4. The trench type vehicle lifting device according to claim 2, characterized in that: The left side of the rotating rod (203) is rotatably connected to the right side of the left end vertical plate (201) via a bearing seat, and the support plate (4) is fixed to the upper surfaces of the four rod sleeves (208).

5. The trench type vehicle lifting device according to claim 2, characterized in that: The rod sleeve (208) is a rectangular parallelepiped, and four square holes are provided on the upper surface of the base (1). The rod sleeve (208) is slidably connected to the inside of the square holes.

6. The trench type vehicle lifting device according to claim 2, characterized in that: The safety mechanism (3) comprises a movable component and a clamping component, wherein the movable component comprises two boxes (301) fixed to the upper surface of the inner cavity of the base (1), a horizontal plate (302) fixed between the front and rear sides of the inner cavity of the boxes (301), a second motor (303) fixed to the upper surface of the horizontal plate (302), and a cam (304) fixed to the output shaft of the second motor (303), and two through holes (305) are provided on opposite sides of the two boxes (301).

7. The trench type vehicle lifting device according to claim 6, characterized in that: The clamping assembly comprises a slide bar (306) slidably connected to the inside of the through hole (305), a spring (307) sleeved on the outer surface of the slide bar (306), a fixing plate (308) fixed to the opposite side of the left and right groups of slide bars (306), a connecting plate (309) fixed to the opposite side of the left and right groups of slide bars (306), four clamping blocks (310) fixed to the opposite side of the two connecting plates (309), and a plurality of equidistantly distributed clamping grooves (311) are provided on the opposite side of the two rod sleeves (208).

8. The trench type vehicle lifting device according to claim 7, characterized in that: The opposite sides of the left and right springs (307) are respectively fixed to the opposite sides of the two fixing plates (308), and the opposite sides of the left and right springs (307) are respectively fixed to the opposite sides of the inner cavities of the two boxes (301).

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