CN106744500B

CN106744500B - Top support structure of automobile lifter

Info

Publication number: CN106744500B
Application number: CN201611245560.9A
Authority: CN
Inventors: 余淋; 庞奎
Original assignee: Lifan Industry Group Co Ltd
Current assignee: Chongqing Ruilan Automobile Manufacturing Co ltd; Lifan Technology Group Co Ltd
Priority date: 2016-12-29
Filing date: 2016-12-29
Publication date: 2022-06-17
Anticipated expiration: 2036-12-29
Also published as: CN106744500A

Abstract

The invention discloses a jacking structure of an automobile lifter, which comprises a jacking seat, a lifting arm and a lifting arm, wherein the jacking seat is arranged on each lifting arm of the automobile lifter, the top of the jacking seat is higher than the upper surface of the lifting arm at the mounting position of the jacking seat, and the top of the jacking seat is provided with a supporting surface for jacking and supporting an automobile; the method is characterized in that: the upper surface at the top of footstock is recessed downwards and is formed with logical groove, and the whole bar that sets up for following the length direction of the threshold iron on car body floor of logical groove, and lead to the groove and can supply the vertical insertion of threshold iron on car body floor, and the upper surface that the top of footstock lies in logical groove length direction both sides is the supporting surface. The top support structure can effectively avoid the contact or the touch with the threshold iron on the floor of the car body, thereby avoiding the bending deformation of the threshold iron and playing a role in protecting the threshold iron.

Description

Top support structure of automobile lifter

Technical Field

The invention belongs to the field of automobile lifters, and particularly relates to a top support structure of an automobile lifter.

Background

Cars are often required to be raised by car lifts during maintenance or service.

Patent No. CN205312972U shows "a car lift" (as shown in fig. 1 of the specification), which includes: the method comprises the following steps: the hydraulic lifting device comprises a sliding chute 1 (also a lifting frame), a fixing plate 2, a main hydraulic cylinder 3, a supporting plate 4 (also a lifting arm), a towing rod 5, a tray 6 (a rubber pad 11 is fixedly arranged on the upper surface of the fixing plate), rotating shafts 7, rollers 8, an auxiliary hydraulic cylinder 9 and a supporting plate 10, wherein the fixing plate 2 is horizontally and fixedly arranged in the sliding chute 1, the main hydraulic cylinder 3 is vertically and fixedly arranged on the upper surface of the fixing plate 2, the supporting plate 4 is horizontally welded at the upper end of a piston rod of the main hydraulic cylinder 3, the front end of the supporting plate 4 extends to the outside of the sliding chute 1, the towing rod 5 is vertically and fixedly welded at the front end of the supporting plate 4, the tray 6 is fixedly arranged at the upper end of the towing rod 5, the rotating shafts 7 are respectively and horizontally arranged on the left side and the right side of the lower end of the sliding chute 1 through bearings, the roller 8 is fixedly arranged on each rotating shaft 7, and the left roller and the right roller 8 are axially symmetrical with respect to the sliding chute 1, the height of the lowest end of the roller 8 is lower than that of the lowest end of the sliding chute 1, an auxiliary hydraulic cylinder 9 is fixedly arranged on the lower surface of the fixed plate 2, a supporting plate 10 is horizontally and fixedly arranged at the lower end of a piston rod of the auxiliary hydraulic cylinder 9, the supporting plate 10 is arranged outside the sliding chute 1, and the supporting plate 10 is arranged between the left roller 8 and the right roller 8.

However, the sill iron of the car body floor, which is integrally vertically extended downwards, is arranged below two ends of the car body in the width direction, and the sill iron is generally formed by combining a plurality of thin metal plates into a flat iron, so that the strength of the sill iron is weak. In the conventional automobile elevator described above: the towing rod 5, the tray 6 and the rubber pad 11 jointly form a jacking structure which is in contact with and supports the car, the upper surface of the jacking structure is a horizontal supporting surface, and when the jacking structure is used for jacking the car, the doorsill iron on the floor of the car body of the car can be deformed and damaged (curled, broken and the like) to different degrees, so that certain potential safety hazards (such as untight car door closure) are caused.

Based on this, the applicant considered to design a jack structure of an automobile lifter capable of protecting the sill iron of the floor of the car body when jacking up the car.

Disclosure of Invention

Aiming at the defects of the prior art, the technical problems to be solved by the invention are as follows: how to provide a jacking structure of an automobile lifter which can protect threshold iron on the floor of a car body when the car is jacked up.

In order to solve the technical problem, the invention adopts the following technical scheme:

a jacking structure of an automobile lifter comprises a top seat arranged on each lifting arm of the automobile lifter, wherein the top of the top seat is higher than the upper surface of the lifting arm at the position where the top seat is arranged, and the top of the top seat is provided with a bearing surface for jacking and supporting an automobile; the method is characterized in that: the upper surface of the top of the footstock is recessed to form a through groove, the whole through groove is in a strip shape arranged along the length direction of the doorsill iron on the floor of the car body, the doorsill iron on the floor of the car body can be vertically inserted into the through groove, and the upper surfaces of the top of the footstock, which are positioned on two sides of the length direction of the through groove, are supporting surfaces.

When the jacking structure of the automobile lifter is used, the through groove arranged at the top of the top seat is used for the vertical insertion of the threshold iron on the floor of the car body, and the upper surfaces of the top seat, which are positioned at the two sides of the length direction of the through groove, are connected with the bottom supports of the car body on the two sides of the threshold iron on the floor of the car body. Therefore, in the process of lifting the automobile, the contact or the touch with the threshold iron on the floor of the automobile body of the car can be effectively avoided, so that the bending deformation of the threshold iron is avoided, and the effect of protecting the threshold iron is achieved.

Meanwhile, the upper surfaces of the top seat, which are positioned on the two sides of the through groove in the length direction, are bearing surfaces, so that the bearing area between the top of the top seat and the car is increased, and better support stability can be obtained.

Preferably, a vertical screw is fixedly arranged at the bottom of the top seat, a vertical screw hole is formed in the lifting arm corresponding to the screw, and the screw is in threaded connection with the vertical screw hole.

Therefore, the assembly between the top seat and the lifting arm is simpler and more convenient. Meanwhile, the height of the top seat can be adjusted more conveniently by rotating the screw rod in the vertical screw hole, so that the structure is matched with the bottom of different automobiles better, and the practicability is improved.

Preferably, the axial length of the screw rod is greater than that of the vertical screw hole, and a limiting check ring is fixedly arranged at one end, far away from the top seat, of the screw rod.

Therefore, the arrangement of the limiting check ring on the screw rod can limit the stroke of the screw rod in the screw hole, and the screw rod is prevented from being screwed out of the vertical screw hole; make the internal thread of vertical screw can with fully be connected between the screw rod for the screw rod obtains the fixed effect of best vertical spacing, ensures the stability of support.

Preferably, a rotary assisting fixing block is convexly formed on the side surface of the top seat in the circumferential direction.

The setting of above-mentioned rotatory helping hand fixed block not only is convenient for rotate the footstock in order to adjust the height of footstock, can also increase the length of the rotatory arm of force of footstock for the footstock is rotatory more laborsaving.

Preferably, the top seat comprises an upper supporting seat, a lower supporting seat and a thrust bearing which are sequentially arranged from top to bottom; the upper support seat and the lower support seat are both columnar, the through groove is formed in the upper surface of the upper support seat, and a rotating shaft is formed on the lower surface of the upper support seat in a protruding mode; the thrust bearing is sleeved on the rotating shaft; the upper surface of the lower supporting seat is recessed to form a groove for the rotating shaft and the thrust bearing to fall into, and the thrust bearing is inserted into the groove with the rotating shaft.

According to the top seat structure, the upper supporting seat can rotate horizontally, so that the length direction of the through groove formed in the upper supporting seat can be matched with the extending direction of threshold irons of various car body floors, the top seat can be suitable for various types of cars, and the practicability is improved.

Preferably, the bearing surface pad is provided with a rubber block.

The rubber block can play a role in shock absorption and buffering, effectively prevents friction between a bearing surface and the surface of a car in contact, and plays a role in better protecting the surface of the car.

Preferably, the supporting surface is concave up and down to form a connecting hole, a countersunk hole corresponding to the connecting hole is vertically arranged on the rubber block in a penetrating mode, and the rubber block is fixedly connected with the supporting surface through a bolt screwed in the countersunk hole and the connecting hole.

Therefore, the rubber block is fixed on the upper supporting seat through the bolts, and the rubber block is convenient to replace after being damaged.

Drawings

FIG. 1 is a schematic view of a vehicle with a bulletin No. CN 205312972U.

Fig. 2 is a schematic structural view (side view direction) of an automobile elevator employing the shoring structure of the present invention.

Fig. 3 is a schematic structural view (front view direction) of an automobile elevator employing the shoring structure of the present invention.

Fig. 4 is a schematic structural view of a top bracing structure of an automobile elevator according to the present invention (also enlarged view of a portion a in fig. 3).

Labeled in fig. 2-4:

10 lifting frames and 11 lifting arms;

2, threshold iron;

3, an upper supporting seat, a 31 through groove and a 32 rotating shaft;

4, a lower supporting seat, a screw rod 41, a limiting retainer ring 42 and a rotary boosting fixing block 43;

5 a thrust bearing;

6, a rubber block;

7, bolts.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings. Where descriptive terms such as up, down, left, right, etc., are used for descriptive purposes to aid the reader's understanding and are not intended to be limiting.

In the specific implementation: as shown in fig. 2 to 4, a jack structure of an automobile elevator includes a top seat installed on each lifting arm 11 of the automobile elevator, the top of the top seat is higher than the upper surface of the lifting arm 11 where the top seat is installed, and the top of the top seat has a bearing surface for jacking and supporting an automobile; the upper surface at the top of footstock is sunken to be formed with logical groove 31, it is the bar that sets up in the same direction as the length direction of door sill iron 2 on car body floor to lead to the groove 31 is whole, just it can supply the vertical insertion of door sill iron 2 on car body floor to lead to groove 31, the upper surface that the top of footstock is located logical groove 31 length direction both sides is the supporting surface.

The bottom of the top seat is fixedly provided with a vertical screw rod 41, the lifting arm 11 is provided with a vertical screw hole corresponding to the screw rod 41, and the screw rod 41 is in threaded connection with the vertical screw hole.

The axial length of the screw rod 41 is greater than that of the vertical screw hole, and a limiting check ring 42 is fixedly arranged at one end, far away from the top seat, of the screw rod 41.

Wherein, the side surface of the circumferential direction of the top seat is convexly provided with a rotary power-assisted fixing block 43.

The top seat comprises an upper supporting seat 3, a lower supporting seat 4 and a thrust bearing 5 which are sequentially arranged from top to bottom; the upper supporting seat 3 and the lower supporting seat 4 are both in a column shape, the through groove 31 is formed in the upper surface of the upper supporting seat 3, and a rotating shaft 32 is formed on the lower surface of the upper supporting seat 3 in a downward protruding mode; the thrust bearing 5 is sleeved on the rotating shaft 32; the upper surface of the lower support seat 4 is recessed to form a groove for the rotating shaft 32 and the thrust bearing 5 to fall into, and the thrust bearing 5 and the rotating shaft 32 are inserted into the groove.

Wherein the bearing surface is padded with a rubber block 6.

The supporting surface is vertically concave to form a connecting hole, a counter bore corresponding to the connecting hole vertically penetrates through the rubber block 6, and the rubber block 6 is fixedly connected with the supporting surface through a bolt 7 screwed in the counter bore and the connecting hole.

The automobile lifting machine adopting the jacking structure can well solve the problem that the threshold iron 2 of the automobile body floor is damaged in the lifting process of the automobile, and the specific working principle is as follows:

the top supporting structure consists of a rubber block 6, an upper supporting seat 3, a lower supporting seat 4, a rubber block 6, a bolt 7, a thrust bearing 5 and an axial retainer ring, wherein the upper supporting seat 3 is provided with a through groove 31 for avoiding the car threshold iron 2, the rubber block 6 is arranged on the upper supporting seat 3 and used for protecting the floor at the bottom of the car from being scratched, and the rubber block 6 is fixed on the upper supporting seat 3 through the bolt 7 and is convenient to replace after being damaged; a thrust bearing 5 is arranged between the upper support seat 3 and the lower support seat 4, so that the upper support seat 3 and the lower support seat 4 can rotate relatively, and the through groove 31 of the upper support seat 3 is conveniently aligned to the threshold iron 2 when a vehicle is supported; the lower support seat 4 is provided with a screw rod 41, and the height can be adjusted up and down.

The beneficial technical effect of above-mentioned shore structure does: after the automobile is lifted on the lifting frame 10, the threshold iron 2 of the automobile cannot be damaged and deformed; the support stability is high, and it is convenient to support position control, all has fine effect to the security of protection vehicle and support.

Note: in the present embodiment, the upper support base 3 and the lower support base 4 are typically cylindrical structures, but the two are not limited to the cylindrical shape, and may be similar structures such as polygonal prisms.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several changes and modifications can be made without departing from the technical solution, and the technical solution of the changes and modifications should be considered as falling within the scope of the claims of the present application.

Claims

1. A jacking structure of an automobile lifter comprises a top seat arranged on each lifting arm of the automobile lifter, wherein the top of the top seat is higher than the upper surface of the lifting arm at the position where the top seat is arranged, and the top of the top seat is provided with a bearing surface for jacking and supporting an automobile; the method is characterized in that: the upper surface of the top of the footstock is recessed downwards to form a through groove, the whole through groove is in a strip shape arranged along the length direction of the doorsill iron of the car body floor, the doorsill iron of the car body floor can be vertically inserted into the through groove, and the upper surfaces of the top of the footstock, which are positioned at the two sides of the through groove in the length direction, are supporting surfaces;

the supporting surface is in supporting connection with the bottom of the car body on two sides of the threshold iron on the floor of the car body so as to prevent the threshold iron from bending and deforming;

the top seat comprises an upper supporting seat, a lower supporting seat and a thrust bearing which are sequentially arranged from top to bottom; the upper support seat and the lower support seat are both columnar, the through groove is formed in the upper surface of the upper support seat, and a rotating shaft is formed on the lower surface of the upper support seat in a protruding mode; the thrust bearing is sleeved on the rotating shaft; the upper surface of the lower supporting seat is recessed to form a groove for the rotating shaft and the thrust bearing to fall into, and the thrust bearing is inserted into the groove with the rotating shaft.

2. A jack structure of an automobile lifter according to claim 1, characterized in that: the bottom of footstock is fixed and is provided with a vertical screw rod, lift on the arm correspond the screw rod is provided with vertical screw, screw rod threaded connection is in the vertical screw hole.

3. A jack structure of an automobile lifter according to claim 2, characterized in that: the axial length of the screw rod is greater than that of the vertical screw hole, and a limiting check ring is fixedly arranged at one end, far away from the top seat, of the screw rod.

4. A jack structure of an automobile lifter according to claim 2, characterized in that: and a rotary boosting fixing block is convexly formed on the side surface of the top seat in the circumferential direction.

5. A jack structure of an automobile lifter according to claim 1, characterized in that: the supporting surface is padded with a rubber block.

6. A jack structure of an automobile lifter according to claim 5, characterized in that: the supporting surface is concave up and down to form a connecting hole, a countersunk hole corresponding to the connecting hole is vertically arranged on the rubber block in a penetrating mode, and the rubber block is fixedly connected with the supporting surface through a bolt screwed in the countersunk hole and the connecting hole.