CN217996684U

CN217996684U - Safe lifting frame

Info

Publication number: CN217996684U
Application number: CN202222423605.4U
Authority: CN
Inventors: 齐光军
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-14
Filing date: 2022-09-14
Publication date: 2022-12-09
Anticipated expiration: 2032-09-14

Abstract

The utility model discloses a safe lifting frame, the on-line screen storage device comprises a base, the equal movable contact in top both sides of base has the lift plate, the first guiding mechanism of the equal fixedly connected with in top both sides of base, one side that two first guiding mechanism are close to each other respectively with two one side fixed connection that the lift plate was kept away from each other, first guiding mechanism plays the effect of direction to the lift plate that corresponds. The utility model discloses a first limiting plate and stop gear cooperate, can carry on spacingly to the car, can effectual reduction promote the in-process car and rock the risk of landing, improve and promote the security, and cooperate through rotary driving mechanism, screw thread drive guiding mechanism and link gear, can four wheel backup pads of synchronous drive rotatory to can make a round trip to switch between letting the wheel motionless and rotating, improve and use the flexibility.

Description

Safe lifting frame

Technical Field

The utility model relates to a safe lifting frame technical field especially relates to a safe lifting frame.

Background

In the in-process of overhauing the car, need use the lifting frame to lift the operation to the car, traditional car lifting frame includes the pneumatic cylinder, supporting mechanism and vertical guiding mechanism, support in the bottom of car through supporting mechanism, then the pneumatic cylinder drives supporting mechanism through vertical guiding mechanism and carries out the operation of lifting, wherein the wheel that is supported by supporting mechanism must be fixed, if the wheel takes place to rotate, then cause the car landing easily, this also causes the wheel after promoting to carry out the wheel rotation test, make and use the flexibility low, synthesize the problem that the aforesaid exists, therefore we have provided a safe lifting frame.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a safe lifting frame.

In order to realize the purpose, the utility model adopts the following technical scheme:

a safe lifting frame comprises a base, wherein lifting plates are movably contacted with two sides of the top of the base, first guide mechanisms are fixedly connected with the two sides of the top of the base, one sides, close to each other, of the two first guide mechanisms are fixedly connected with one sides, far away from each other, of the two lifting plates respectively, the first guide mechanisms play a guiding effect on the corresponding lifting plates, multistage hydraulic cylinders are fixedly connected with the two sides of the base, output shafts of the multistage hydraulic cylinders are fixedly connected with the corresponding first guide mechanisms, the multistage hydraulic cylinders are matched with the first guide mechanisms and used for driving the corresponding lifting plates to move upwards for lifting, wheel supporting plates are arranged on the front sides and the rear sides of the lifting plates and used for supporting automobile wheels, triangular plates, the bottoms of the triangular plates are flush with the bottoms of the base and are fixedly connected with the front sides of the two wheel supporting plates on the front sides, and play a guiding effect on automobiles, the automobile is convenient to drive to a lifting plate higher than the ground, the bottom of the wheel supporting plate at the front side is provided with a limiting mechanism, the tops of the two wheel supporting plates at the rear side are fixedly connected with a first limiting plate, four wheels of the automobile can be limited by matching the limiting mechanism with the first limiting plate, the risk of shaking and sliding of the automobile in the lifting process is avoided, the front side and the rear side of the lifting plate are rotatably provided with rotating shafts, the wheel supporting plate is fixedly sleeved on the corresponding rotating shafts, the rotating shafts are fixedly sleeved with two rotary driving mechanisms for driving the rotating shafts to rotate, the wheel supporting plate is positioned between the two corresponding rotary driving mechanisms, the bottom of the lifting plate is provided with a first groove, a thread driving guide mechanism is arranged in the first groove, one end, close to each other, of the front rotary driving mechanism and the rear rotary driving mechanism, extends into the corresponding first groove and is fixedly connected with the thread driving guide mechanism, the thread driving guide mechanisms are used for driving the corresponding rotary driving mechanisms to rotate, the two thread driving guide mechanisms are fixedly sleeved with the same linkage mechanism, the linkage mechanism can synchronously drive the two thread driving guide mechanisms to rotate, and the driving motor fixedly connected with the output shaft and the left thread driving guide mechanism is installed on the front side of the top of the left lifting plate.

Preferably, the first guide mechanism comprises a clip frame fixedly connected to the top of the base, two first guide rods fixedly connected between the inner wall of the top of the clip frame and the inner wall of the bottom of the clip frame, moving blocks fixedly connected to the two sides of the lifting plate, sliding blocks sleeved on the two corresponding first guide rods, and two moving blocks respectively connected to the top ends of the output shafts of the corresponding multistage hydraulic cylinders at one sides far away from each other, and the first guide rods and the moving blocks are matched to guide the lifting plate.

Preferably, stop gear includes L shape limiting plate, and two L shape limiting plates are the activity respectively and are inlayed the bottom of adorning two wheel backup pads in the front side, and the equal fixed mounting in bottom of two wheel backup pads in the front side has electric telescopic handle, and electric telescopic handle's output shaft bottom and the bottom inner wall fixed connection of the L shape limiting plate that corresponds.

Preferably, the rotary driving mechanism comprises a gear fixedly sleeved on the rotating shaft, the wheel supporting plate is positioned between the two corresponding gears, the bottom of the gear is meshed with a rack, and one end, close to each other, of each of the two front and back opposite racks extends into the corresponding first groove.

Preferably, the thread driving guide mechanism comprises two screws rotatably mounted on the front inner wall and the rear inner wall of the first groove, the thread directions of the two screws in the same first groove are opposite, the two screws have opposite thread directions, and when the two screws rotate in the same direction, the two corresponding components are driven to move in directions away from or close to each other.

Preferably, the linkage mechanism comprises two chain wheels, the two chain wheels are respectively fixedly sleeved on the two screw rods on the front side, the two chain wheels are in transmission connection with a same chain, and the four screw rods can be synchronously driven to rotate through the matching of the two chain wheels and the chain.

Preferably, two fixed blocks of the equal fixedly connected with in front side and the rear side of promotion board, fixed block rotate the cover establish in the pivot that corresponds, and two fixed blocks are located between two gears that correspond, and the fixed block plays the effect of support to the pivot that corresponds.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the automobile can be lifted by matching the multi-stage hydraulic cylinder, the first guide mechanism, the lifting plate and the wheel supporting plate;

2. the first limiting plate is matched with the limiting mechanism, so that the automobile can be limited, the risk of shaking and sliding of the automobile in the lifting process can be effectively reduced, and the lifting safety is improved;

3. the four wheel supporting plates can be synchronously driven to rotate by matching the rotary driving mechanism, the rotating shaft, the thread rotary driving guide mechanism, the linkage mechanism and the driving motor, so that the wheels can be switched back and forth between immovable and rotary states, and the use flexibility is improved;

the utility model discloses a first limiting plate and stop gear cooperate, can carry on spacingly to the car, can effectual reduction promote the in-process car and rock the risk of landing, improve and promote the security, and cooperate through rotary driving mechanism, screw thread drive guiding mechanism and link gear, can four wheel backup pads of synchronous drive rotatory to can make a round trip to switch between letting the wheel motionless and rotating, improve and use the flexibility.

Drawings

Fig. 1 is a schematic perspective view of a safety lifting frame according to the present invention;

fig. 2 is a schematic front view of a safety lifting frame according to the present invention;

FIG. 3 is a schematic partial cross-sectional structural view of FIG. 2;

fig. 4 is a schematic left sectional view of the safety lifting frame according to the present invention.

In the figure: 100. a base; 101. a lifting plate; 102. a multi-stage hydraulic cylinder; 103. a set square; 1. a clip frame; 2. a first guide bar; 3. a moving block; 4. a wheel support plate; 5. a rotating shaft; 6. a gear; 7. a rack; 8. a first groove; 9. a screw; 10. a rectangular block; 11. a second guide bar; 12. a drive motor; 13. a sprocket; 14. a chain; 15. an electric telescopic rod; 16. an L-shaped limiting plate; 17. the first limiting plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, a safety lifting frame comprises a base 100, wherein lifting plates 101 are movably contacted with both sides of the top of the base 100, both sides of the top of the base 100 are fixedly connected with first guide mechanisms, one sides of the two first guide mechanisms, which are close to each other, are fixedly connected with one sides of the two lifting plates 101, which are far away from each other, both sides of the base 100 are fixedly connected with multi-stage hydraulic cylinders 102, which output shafts are fixedly connected with the corresponding first guide mechanisms, the first guide mechanisms comprise a clip frame 1 fixedly connected with the top of the base 100, two first guide rods 2 are fixedly connected between the inner walls of the top and the bottom of the clip frame 1, both sides of the lifting plates 101 are fixedly connected with moving blocks 3, the moving blocks 3 are slidably sleeved on the two corresponding first guide rods 2, two first guide holes are formed in the tops of the moving blocks 3, the inner walls of the first guide holes are slidably connected with the outer sides of the corresponding first guide rods 2, a guide effect is achieved on the lifting plate 101 through the cooperation of the first guide rods 2 and the corresponding moving blocks 3, one sides, away from each other, of the two moving blocks 3 are fixedly connected with the top ends of the output shafts of the corresponding multistage hydraulic cylinders 102 respectively, connecting blocks are fixedly connected to one sides, away from each other, of the two moving blocks 3, the bottoms of the connecting blocks are fixedly connected with the top ends of the output shafts of the corresponding multistage hydraulic cylinders 102, and the multistage hydraulic cylinders 102 are matched with the connecting blocks to drive the corresponding moving blocks 3 to move up and down;

the front side and the rear side of the lifting plate 101 are respectively provided with a wheel supporting plate 4, the front sides of the two wheel supporting plates 4 positioned on the front side are respectively and fixedly connected with a triangular plate 103 with the bottom being flush with the bottom of the base 100, the triangular plate 103 plays a role of guiding the automobile and is convenient for the automobile to run on the lifting plate 101 higher than the ground, the bottom of the wheel supporting plate 4 positioned on the front side is provided with a limiting mechanism, the limiting mechanism comprises L-shaped limiting plates 16, the two L-shaped limiting plates 16 are respectively and movably embedded at the bottoms of the two wheel supporting plates 4 positioned on the front side, the tops of the two wheel supporting plates 4 positioned on the front side are respectively provided with a first through hole, the inner wall of each first through hole is movably contacted with the outer side of the corresponding L-shaped limiting plate 16, the bottoms of the two wheel supporting plates 4 positioned on the front side are respectively and fixedly provided with an electric telescopic rod 15, the bottoms of the two wheel supporting plates 4 positioned on the front side are respectively provided with embedded grooves, the inner walls of the embedded grooves are fixedly connected with the outer sides of the corresponding electric telescopic rods 15, and the bottom ends of output shafts of the electric telescopic rods 15 are fixedly connected with the inner walls of the corresponding L-shaped limiting plates 16;

the top parts of the two wheel supporting plates 4 positioned at the rear side are fixedly connected with first limiting plates 17, the rotating shafts 5 are rotatably installed at the front side and the rear side of the lifting plate 101, two fixing blocks are fixedly connected at the front side and the rear side of the lifting plate 101, the fixing blocks are rotatably sleeved on the corresponding rotating shafts 5, circular holes are formed in one sides of the fixing blocks, first bearings are fixedly sleeved in the circular holes, the inner sides of the inner rings of the first bearings are fixedly connected with the outer sides of the corresponding rotating shafts 5, the first bearings have the effect of rotatably installing the corresponding rotating shafts 5, and the corresponding rotating shafts 5 are supported by matching the fixing blocks with the first bearings;

the wheel supporting plates 4 are fixedly sleeved on the corresponding rotating shafts 5, the rotating shafts 5 are fixedly sleeved with two rotary driving mechanisms, the wheel supporting plates 4 are positioned between the two corresponding rotary driving mechanisms, each rotary driving mechanism comprises a gear 6 fixedly sleeved on the corresponding rotating shaft 5, the wheel supporting plates 4 are positioned between the two corresponding gears 6, and the bottom of each gear 6 is meshed with a rack 7;

the bottom of the lifting plate 101 is provided with a first groove 8, the mutually adjacent ends of two front and back opposite racks 7 extend into the corresponding first grooves 8, a thread driving guide mechanism is installed in the first groove 8, the mutually adjacent ends of the two front and back opposite racks 7 are fixedly connected with the corresponding thread driving guide mechanism, the thread driving guide mechanism comprises two screw rods 9 rotatably installed on the front inner wall and the back inner wall of the first groove 8, wherein the front inner wall and the back inner wall of the first groove 8 are respectively provided with a rotating groove, the rotating groove is fixedly sleeved with a second bearing, the inner side of an inner ring of the second bearing is fixedly connected with the outer side of the corresponding screw rod 9, the second bearing has the effect of rotatably installing the corresponding screw rod 9, the thread turning directions of the two screw rods 9 in the same first groove 8 are opposite, the mutually adjacent ends of the two screw rods 9 in the same first groove 8 are welded, a rectangular block 10 is sleeved on the screw rod 9, the front side of the rectangular block 10, the threaded hole is connected with the corresponding screw rod 9, the sliding guide block 11 is sleeved on the front side of the corresponding screw rod, the corresponding guide rod, the sliding guide rod 11, the two sliding guide blocks 11 and the sliding guide rod are respectively connected with the corresponding inner wall of the sliding guide rod, the front and the sliding block 11, the driving motor 12 is arranged on the front side of the top of the left lifting plate 101, and the rear end of the output shaft of the driving motor 12 is fixedly connected with the front end of the screw 9 positioned on the left front side;

fixed cover is equipped with same link gear on four screw rods 9, and link gear includes two sprocket 13, and two sprocket 13 are fixed respectively that the cover is established on two screw rods 9 of front side, and the transmission is connected with same chain 14 on two sprocket 13, cooperatees through two sprocket 13 and chain 14, can drive four synchronous rotations of screw rod 9, the utility model discloses a first limiting plate cooperatees with stop gear, can carry on spacingly to the car, can effectually reduce the risk that promotes the in-process car and rock the landing, improves and promotes the security, and through rotary driving mechanism, screw drive guiding mechanism and link gear cooperate, can four wheel backup pads of synchronous drive rotate to can make a round trip to switch between letting the wheel motionless and rotating, improve and use the flexibility.

The working principle is as follows: when the automobile lifting device is used, when an automobile is lifted, the automobile runs onto the two lifting plates 101 and the four wheel supporting plates 4 through the two triangular plates 103, and the four wheels are supported through the four wheel supporting plates 4, so that the automobile is supported, because the bottoms of the automobile wheels are lower than the position of the automobile chassis, the automobile chassis is not in contact with the tops of the two lifting plates 101 at the moment, when the automobile runs until front wheels of the automobile are in contact with the front sides of the two first limiting plates 17, the automobile is stopped, the two electric telescopic rods 15 are started immediately in a forward direction, output shafts of the electric telescopic rods 15 drive the corresponding L-shaped limiting plates 16 to move upwards, the L-shaped limiting plates 16 move upwards until the inner walls of the front sides of the L-shaped limiting plates are in contact with the front sides of the wheels at the rear sides, the electric telescopic rods 15 are stopped, at the moment, the two first limiting plates 17 are matched with the two L-shaped limiting plates 16, the four wheels of the automobile are limited, so that the risk of the automobile shaking and falling of the automobile in the lifting process can be effectively reduced, the lifting safety is improved, and the automobile gears are supported through the four wheel supporting plates 4 at the moment, and the automobile can not rotate;

when the automobile is lifted, the two multistage hydraulic cylinders 102 are started in the forward direction, the output shafts of the multistage hydraulic cylinders 102 drive the corresponding moving blocks 3 to slide upwards on the two first guide rods 2, the moving blocks 3 drive the corresponding lifting plates 101 to move upwards, the lifting plates 101 drive the corresponding two wheel support plates 4 to move upwards, the four wheel support plates 4 simultaneously move upwards and lift the automobile upwards, and when the automobile moves upwards to a required height, the multistage hydraulic cylinders 102 are stopped;

when the wheel needs to rotate in the maintenance process, the driving motor 12 is started in the forward direction, the output shaft of the driving motor 12 drives the screw rod 9 on the left front side to rotate, the screw rod 9 on the left front side drives the screw rod 9 on the left rear side to rotate, the two screw rods 9 on the left side drive the chain wheel 13 on the left side to rotate, the chain wheel 13 on the left side drives the chain wheel 13 on the right side to rotate through the chain 14, the chain wheel 13 on the right side drives the two screw rods 9 on the right side to rotate, so that the four screw rods 9 rotate simultaneously, under the action of the threaded holes formed in the rectangular blocks 10, due to the fact that the thread turning directions of the two screw rods 9 opposite to each other in the front and the rear directions are opposite, the two rectangular blocks 10 opposite to each other in the front and the rear directions are driven to move towards the directions close to each other, the rectangular blocks 10 slide on the two corresponding second guide rods 11, the rectangular blocks 10 drive the corresponding racks 7 to move, and the racks 7 drive the corresponding gears 6 to rotate, the gear 6 drives the wheel supporting plate 4 to rotate downwards through the corresponding rotating shaft 5, the automobile moves downwards under the action of gravity along with the downward rotation of the wheel supporting plate 4, when an automobile chassis is contacted with the tops of the two lifting plates 101, the whole automobile is supported through the two lifting plates 101 at the moment, when the top of the wheel supporting plate 4 is separated from the corresponding automobile wheel, the driving motor 12 is stopped, the automobile wheel is in a suspended state at the moment and can rotate, when the wheel needs to be immobilized, the driving motor 12 can be started reversely, the motion process of starting the driving motor 12 in the forward direction is opposite to that of starting the driving motor 12 in the forward direction, so that the four wheel supporting plates 4 are changed into upward rotation and extrude the four wheels, under the extrusion force, the automobile moves upwards, the four wheels are supported through the four wheel supporting plates 4 again, and the wheels cannot rotate at the moment, through the mode of synchronously rotating four wheel supporting plates 4, the wheels can be switched back and forth between immovable and rotary states, and the use flexibility is improved.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a safe lifting frame, including base (100), the equal movable contact in top both sides of base (100) has lifting plate (101), a serial communication port, the equal first guiding mechanism of fixedly connected with in top both sides of base (100), one side that two first guiding mechanisms are close to each other respectively with two lifting plate (101) one side fixed connection who keeps away from each other, the equal fixedly connected with output shaft in both sides of base (100) and the multistage pneumatic cylinder (102) of the first guiding mechanism fixed connection who corresponds, the front side and the rear side of lifting plate (101) all are equipped with wheel backup pad (4), the equal fixedly connected with bottom of the front side of two wheel backup pad (4) that are located the front side and set-square (103) of the bottom parallel and level of base (100), stop gear is installed to the bottom of the wheel backup pad (4) that are located the front side, the equal fixedly connected with first limiting plate (17) in top of two wheel backup pad (4) that are located the rear side, the front side and the rear side of lifting plate (101) all rotate and install pivot (5), wheel backup pad (4) fixed cover is established on the pivot (5) that correspond and correspond the drive mechanism (8) and set up the corresponding screw thread drive groove (8) and set, the corresponding drive mechanism (8) of two first supporting mechanism (8) and set up in the drive mechanism, the drive mechanism (8) and the corresponding one end, the drive mechanism (8) that correspond each other, the drive mechanism is established in the drive groove (8), the drive mechanism, the front and set-up the drive mechanism (8) each other, the drive groove (8) that correspond, the drive mechanism is established The thread driving guide mechanisms are fixedly connected, the two thread driving guide mechanisms are fixedly sleeved with the same linkage mechanism, and a driving motor (12) with an output shaft fixedly connected with the thread driving guide mechanism on the left side is installed on the front side of the top of the left lifting plate (101).

2. The safety lifting frame as claimed in claim 1, wherein the first guiding mechanism comprises a clip frame (1) fixedly connected to the top of the base (100), two first guiding rods (2) are fixedly connected between the top inner wall and the bottom inner wall of the clip frame (1), moving blocks (3) are fixedly connected to both sides of the lifting plate (101), the moving blocks (3) are slidably sleeved on the two corresponding first guiding rods (2), and one sides of the two moving blocks (3) away from each other are respectively fixedly connected to the top ends of the output shafts of the corresponding multi-stage hydraulic cylinders (102).

3. The safety lifting frame according to claim 2, wherein the limiting mechanism comprises L-shaped limiting plates (16), the two L-shaped limiting plates (16) are respectively and movably embedded at the bottoms of the two front wheel supporting plates (4), electric telescopic rods (15) are fixedly installed at the bottoms of the two front wheel supporting plates (4), and the bottom ends of the output shafts of the electric telescopic rods (15) are fixedly connected with the inner walls of the bottoms of the corresponding L-shaped limiting plates (16).

4. A safety lifting frame according to claim 3, wherein said rotary driving mechanism comprises a gear (6) fixedly sleeved on the rotating shaft (5), the wheel supporting plate (4) is located between two corresponding gears (6), the bottom of the gear (6) is engaged with a rack (7), and the end of each of the two front and rear opposite racks (7) close to each other extends into the corresponding first groove (8).

5. A safety lifting frame according to claim 4, wherein the screw driving guide mechanism comprises two screws (9) rotatably mounted on the front inner wall and the rear inner wall of the first groove (8), the screw thread turning directions of the two screws (9) in the same first groove (8) are opposite, one ends of the two screws (9) in the same first groove (8) close to each other are welded, a rectangular block (10) is sleeved on the screw thread of each screw (9), one side of each front and rear opposite rectangular block (10) away from each other is fixedly connected with one end of each front and rear opposite rack (7) close to each other, two second guide rods (11) are fixedly connected between the front inner wall and the rear inner wall of the first groove (8), the rectangular block (10) is slidably sleeved on the corresponding two second guide rods (11), and the rear end of the output shaft of the driving motor (12) is fixedly connected with the front end of the screw (9) in the left front side.

6. A safety lifting frame as claimed in claim 5, wherein the linkage mechanism comprises two chain wheels (13), the two chain wheels (13) are respectively and fixedly sleeved on the two screws (9) on the front side, and the two chain wheels (13) are in transmission connection with the same chain (14).

7. A safety lifting frame according to claim 4, characterized in that the front and rear sides of the lifting plate (101) are fixedly connected with two fixed blocks, the fixed blocks are rotatably sleeved on the corresponding rotating shafts (5), and the two fixed blocks are located between the corresponding two gears (6).