CN220011998U

CN220011998U - Gravity self-locking type single quick lifting device for racing car maintenance

Info

Publication number: CN220011998U
Application number: CN202321476900.4U
Authority: CN
Inventors: 胡善琦
Original assignee: Harbin Institute of Technology Weihai
Current assignee: Harbin Institute of Technology Weihai
Priority date: 2023-06-09
Filing date: 2023-06-09
Publication date: 2023-11-14
Anticipated expiration: 2033-06-09

Abstract

The utility model relates to the technical field of repair tools of formula racing cars, in particular to a gravity self-locking type single quick lifting device for repairing racing cars. The L-shaped arm comprises at least two lever upright posts and a connecting arm, the upper end and the lower end of each lever upright post are respectively hinged with the upper support frame and the lower support frame, and the lever upright posts are connected through the connecting arm. When the connecting arm is in contact with the ground, the L-shaped arm is locked with the upper support frame. The upper supporting frame is matched with the L-shaped arm under the action of gravity of the racing car, so that the lifting device forms a stable self-locking structure under the action of gravity of the racing car, other self-locking structures are not needed to be additionally arranged, and the racing car can be erected by a single person.

Description

Gravity self-locking type single quick lifting device for racing car maintenance

Technical Field

The utility model relates to the technical field of repair tools for formula racing cars, in particular to a gravity self-locking type single quick lifting device for racing car repair.

Background

In recent years, kart, college student formula car and other small racing car events have been raised, which are suitable for personal, family or small team participation. The mass of the small racing car is generally below 300kg, the length is not more than 3m, and the width and the height are not more than 1.5 m.

In the racing field, it is often necessary to suspend the vehicle for related maintenance and adjustment, for example: changing tires, adjusting inclination, toe angle, chassis height, or performing maintenance. For racing purposes, the debugging of the racing car must be as rapid as possible. The weight of racing car is that an adult man can not independently lift it, and the team number of racing car is limited, so need to utilize the lifting tool, reach the purpose of lifting the racing car off ground certain height fast.

The most common tools in the field of vehicle maintenance adjustment are hydraulic platforms or small hydraulic jacks, such as a locomotive outdoor maintenance hydraulic lifting device of CN212799421U and a vehicle maintenance lifting machine of CN212403350U, which use hydraulic structures for vehicle lifting. The hydraulic device has higher cost, inconvenient carrying and low operation speed in the competing use environment, and is unfavorable for achieving the purpose of quick overhaul. Meanwhile, the weight of the small racing car is generally below 300kg, and a hydraulic device is not required to provide a large lifting force. In the high-level formula racing, a mechanical lifting device utilizing the lever principle is used, and the device has a relatively simple structure, but requires a front user and a rear user to operate the racing car simultaneously. In addition, the device has no self-locking function, and users cannot leave the device before the racing car lands. And because the racing team staff of the small racing car is less, sufficient users cannot be ensured. In addition, there are regulations relating to the operation that must be performed by a single person, such as college formula cars.

In addition, based on aerodynamic consideration, the tail of part formula car sets up to upwards slope to reduce the air resistance in formula car advancing process, and current lifting device can not be good adaptation should the slope, makes there is the potential safety hazard of easily rocking in lifting process, has the cycle racing to drop ground and cause the danger of injury to user and cycle racing.

Disclosure of Invention

The utility model aims to provide the lifting device which can be operated by a single person quickly, is simple in structure, is non-hydraulic, is convenient to carry and self-locks by means of gravity, and helps a user to quickly and safely lift a racing car.

The embodiment of the utility model can be realized by the following technical scheme:

the gravity self-locking type single quick lifting device for racing car maintenance comprises an upper supporting frame, a lower supporting frame, a supporting upright post and an L-shaped arm, wherein one end of the upper supporting frame is hinged with the lower supporting frame through the supporting upright post, and the other end of the upper supporting frame is hinged with the lower supporting frame through the L-shaped arm;

the L-shaped arm comprises at least two lever upright posts and a connecting arm, the upper end and the lower end of each lever upright post are respectively hinged with the upper support frame and the lower support frame, and the lever upright posts are connected through the connecting arm;

when the connecting arm is contacted with the ground, the L-shaped arm is locked with the upper supporting frame.

Preferably, the lever upright is fixedly connected with the connecting arm.

Preferably, the angle between the lever upright and the connecting arm is 70-80 degrees.

Preferably, the lifting device further comprises an operating lever detachably connected with the connecting arm.

Preferably, the connecting arm has a triangular structure, two ends of one side of the connecting arm are fixedly connected with the lever upright post, and the opposite angle of the side is positioned at one side far away from the lower support frame;

the diagonal angle is provided with a through hole through which the operating rod passes, and the edge is provided with a blind hole which is abutted with the end part of the operating rod.

Preferably, the L-shaped arm further comprises a connecting sleeve, and the connecting sleeve is sleeved on the outer side of the diagonal corner and is detachably connected with the connecting arm.

Further, the lower support frame is of a rectangular structure, and the upper support frame is of a rectangular structure with one end open, and the opening is located at one end facing and close to the L-shaped arm.

Preferably, the lifting device further comprises a reinforcing rod, and the reinforcing rod is fixedly connected in the rectangular frame of the upper supporting frame.

Preferably, the lifting device further comprises a rotary rocker arm, wherein the rotary rocker arm comprises a rotary rod and a supporting arm, and the rotary rod is fixedly connected with the supporting arm;

the rotating rod is parallel to the ground and penetrates through the reinforcing rod along the direction perpendicular to the reinforcing rod, and is movably connected with the reinforcing rod;

the support arm is located between the closed end of the upper support frame and the reinforcing rod.

Further, the rotary rocker arm further comprises a limiting block, and the limiting block is convexly arranged on the outer side of the rotary rod and is arranged on the same side as the supporting arm;

the reinforcing rod comprises a rod body and a limiting plate, the limiting plate is convexly arranged on one side of the rod body, which faces the L-shaped arm, and the limiting plate can realize limiting of the limiting block.

The gravity self-locking type single quick lifting device for racing maintenance provided by the embodiment of the utility model has at least the following beneficial effects:

(1) When the connecting arm of the L-shaped arm is contacted with the ground, the upper support frame is matched with the L-shaped arm under the action of the gravity of the racing car, so that the lifting device forms a stable self-locking structure under the action of the gravity of the racing car, and the lifting device can finish the lifting of the racing car by a single person without additionally arranging other self-locking structures.

(2) The rotary rocker arm can be abutted with the tail slope of the racing car, so that the lifting device can be well matched with the tail slope, the contact area between the lifting device and the bottom of the racing car is increased, and the stable lifting effect is realized.

(3) The lifting device is of a pure mechanical structure, does not need a hydraulic element, and has the advantages of simple structure and convenience in operation.

Drawings

FIG. 1 is an overall block diagram of a gravity self-locking single quick lift device in a lifted state for racing maintenance according to the present utility model;

FIG. 2 is an overall block diagram of a gravity self-locking single quick lift device in a collapsed configuration for racing maintenance in accordance with the present utility model;

FIG. 3 is an overall block diagram of a gravity self-locking single quick lift device for racing maintenance in a state between a collapsed state and a lifted state in accordance with the present utility model;

FIG. 4 is an exploded view of a gravity self-locking single person quick lift device for racing maintenance according to the present utility model.

Reference numerals: 1. the rotary rocker arm comprises a rotary rocker arm body, 11, a rotary rod body, 12, a supporting arm body, 13, a limiting block, 2, a pin, 3, a lower supporting frame, 4, an operating rod, 5, an L-shaped arm, 51, a lever upright post, 52, a connecting arm, 53, a connecting sleeve, 6, an upper supporting frame, 7, a supporting upright post, 8, a reinforcing rod, 81, a rod body, 82 and a limiting plate.

Detailed Description

The present utility model will be further described below based on preferred embodiments with reference to the accompanying drawings.

The terminology used in the description presented herein is for the purpose of describing embodiments of the utility model and is not intended to be limiting of the utility model. Unless specifically stated or limited otherwise, the terms "disposed," "connected," and "connected" should be construed broadly, as if they were fixedly connected, detachably connected, or integrally connected, for example; the two components can be connected mechanically, directly or indirectly through an intermediate medium, and can be communicated internally. The specific meaning of the above terms in the present utility model will be specifically understood by those skilled in the art.

In addition, in the description of the embodiments of the present utility model, various components on the drawings are enlarged or reduced for the convenience of understanding, but this is not intended to limit the scope of the present utility model.

Fig. 1-3 respectively show the overall structure diagram of the gravity self-locking type single quick lifting device for racing car maintenance in different states, and as shown in fig. 1-3, the lifting device comprises an upper supporting frame 6, a lower supporting frame 3, a supporting upright post 7 and an L-shaped arm 5, one end of the upper supporting frame 6 is hinged with the lower supporting frame 3 through the supporting upright post 7, the other end of the upper supporting frame is hinged with the lower supporting frame 3 through the L-shaped arm 5, and the upper supporting frame 6 can be driven to be far away from or close to the lower supporting frame 3 through the rotation of the L-shaped arm 5, so that the lifting state and the folding state of the lifting device are switched, and the lifting and landing of a racing car are further realized.

The structure of the L-shaped arm 5 will be described in detail with reference to fig. 1 to 3, and as shown in fig. 1 to 3, the L-shaped arm 5 includes a lever post 51 and a connection arm 52, and the lever post 51 is fixedly connected to the connection arm 52. The number of the lever uprights 51 is at least two, the upper end and the lower end of the lever uprights 51 are respectively hinged with the upper support frame 6 and the lower support frame 3, the two lever uprights 51 are connected through the connecting arm 52, and an operator applies force to the connecting arm 52 so as to drive the lever uprights 51 to rotate around the hinge shaft. Further, when the connection arm 52 is in contact with the ground, the L-shaped arm 5 is locked with the upper support frame 6.

In some preferred embodiments of the utility model, as shown in fig. 3, the angle between the lever post 51 and the connecting arm 52 is 70 ° -80 °, which is an acute angle, and the angle is properly set so that the bottom of the racing car and the upper support frame 6 form a stable supporting effect when the connecting arm 52 contacts the ground. When the gravity of the racing car acts on the upper supporting frame 6, downward pressure is applied to the connecting arm 52 through the lever upright post 51, and the connecting arm 52 is contacted with the ground, the ground can give the connecting arm 52 stable supporting force, so that the lifting device forms a stable self-locking structure under the gravity of the racing car, and stable maintenance of the lifting state is realized.

It is conceivable that the lever post 51 is fixedly connected to the connecting arm 52 by means of gluing, welding, integral molding, etc., and in order to improve the connection stability between the lever post 51 and the connecting arm 52, the lever post 51 is connected to the connecting arm 52 by means of integral molding in the present utility model.

In some preferred embodiments of the present utility model, the lifting device further comprises an operating rod 4, the operating rod 4 is detachably connected with the connecting arm 52, the operator can pull the L-shaped arm 5 to rotate through the operating rod 4, the working distance of the operator is prolonged, the operator can drive the L-shaped arm 5 to rotate through the operating rod 4 at a longer distance, and the upper support frame 6 is further driven to be far away from the lower support frame 3 in the vertical direction.

In some preferred embodiments of the present utility model, the lever 4 is of T-shaped configuration for convenient gripping and application of force by an operator.

In some preferred embodiments of the present utility model, the connecting arm 52 has a triangular structure, two ends of one side of the connecting arm 52 are fixedly connected with the lever upright 51, the diagonal angle of the side is located at a side far away from the lower support frame 3, the diagonal angle is provided with a through hole through which the operating rod 4 passes, the side is provided with a blind hole abutting against the end of the operating rod 4, the operating rod 4 passes through the through hole of the diagonal angle and is inserted into the blind hole of the side, and when an operator presses or lifts the operating rod 4, the connecting arm 52 can be synchronously driven to rotate. The triangle structure has the characteristic of stable support, so that the stress of the L-shaped arm 5 is more uniform and stable, the deformation of the L-shaped arm 5 in the stress process can be prevented, and the stability of the L-shaped arm 5 is improved.

Further, the L-shaped arm 5 further comprises a connecting sleeve 53, the connecting sleeve 53 is sleeved on the outer side of the diagonal corner and is detachably connected with the connecting arm 52, the operating rod 4 can penetrate through the connecting sleeve 53 and the diagonal corner, the connecting sleeve 53 can realize stable and reliable connection between the operating rod 4 and the connecting arm 52, and the connecting arm 52 is prevented from deforming to influence the stability of the L-shaped arm in the force application process of an operator.

Specifically, the lever upright 51 and the support upright 7 are hinged with the upper support frame 6 and the lower support frame 3 through the pin 2.

In some preferred embodiments of the present utility model, the lower support frame 3 has a rectangular structure, which has the advantages of large contact area with the ground and stable and reliable support.

In some preferred embodiments of the utility model, the upper support frame 6 is of rectangular configuration with an open end at an end facing and adjacent to the L-shaped arm 5.

In some preferred embodiments of the present utility model, the lifting device further comprises a reinforcing rod 8, wherein the reinforcing rod 8 is fixedly connected with the upper support frame 6, the reinforcing rod 8 is located in the rectangular frame of the upper support frame 6, and the reinforcing rod 8 stabilizes the self structure of the upper support frame 6.

It is conceivable that the reinforcing rod 8 may be fixedly connected to the upper support frame 6 by means of gluing, welding, integral molding, etc., and in order to improve the connection stability between the reinforcing rod 8 and the upper support frame, the reinforcing rod 8 is connected to the upper support frame 6 by means of integral molding in the present utility model.

At this stage, part of the tail of the formula car is set to be inclined upwards based on aerodynamic consideration so as to reduce air resistance during the running process of the formula car, and thus in some preferred embodiments of the utility model, the lifting device further comprises a rotary rocker arm 1, the rotary rocker arm 1 can be abutted with the inclined surface of the tail, and the lifting device increases the contact area with the bottom of the formula car through the rotary rocker arm 1, so that the lifting device can well match the inclined surface of the tail to more stably complete the lifting state.

Further, fig. 4 shows an exploded view of a gravity self-locking type single quick lifting device for racing car maintenance, as shown in fig. 4, the rotary rocker arm 1 comprises a rotary rod 11 and a supporting arm 12, the rotary rod 11 is fixedly connected with the supporting arm 12, the rotary rod 11 is parallel to the ground and penetrates through the reinforcing rod 8 along the direction perpendicular to the reinforcing rod 8 and is movably connected with the reinforcing rod 8, and the rotary rod 11 can drive the supporting arm 12 to circumferentially rotate; the supporting arm 12 is located between the closed end of the upper supporting frame 6 and the reinforcing rod 8, and the supporting arm 12 can be abutted against the tail gradient.

In some preferred embodiments of the present utility model, the support arm 12 is of rectangular configuration with its long side abutting the tail slope to increase its contact area with the bottom of the formula car.

Further, as shown in fig. 4, in order to achieve the stable supporting effect of the rotary rocker arm 1, the rotary rocker arm 1 further includes a limiting block 13, the limiting block 13 is convexly arranged on the outer side of the rotary rod 11 and is arranged on the same side as the supporting arm 12, the reinforcing rod 8 includes a rod body 81 and a limiting plate 82, the limiting plate 82 is convexly arranged on one side of the rod body 81, which faces the L-shaped arm 5, the rotary rod 11 penetrates through the rod body 81, the limiting plate 82 can achieve limiting of the limiting block 13, and then the supporting arm 12 is located on one side, which faces away from the ground, of the rod body 81, so that the supporting arm 12 is prevented from rotating circumferentially, and stable abutting connection between the supporting arm 12 and the tail gradient is achieved.

In some preferred embodiments of the utility model, the upper support frame 6 and the lower support frame 3 are formed by welding square steel pipes, so that the processing is convenient, the contact area with the bottom of the formula car is large, and the support is reliable and stable.

In some preferred embodiments of the present utility model, the number of the supporting columns 7 is at least one, so that stable supporting force can be provided between the upper supporting frame 6 and the lower supporting frame 3. Specifically, the number of support columns 7 in the present utility model is 2 pairs.

In use, the lifting device is brought into a folded state, as shown in fig. 2, and the lower support frame 3 is placed on the ground. The lifting device is inserted into the bottom of the formula racing car from the side part or the front-back direction of the racing car, the upper support frame 6 is checked and ensured to be in the middle of the racing car, the supporting arm 12 corresponds to the gradient position of the bottom of the racing car, the rotating rod 11 is rotated, the supporting arm 12 is rotated to the direction facing the bottom of the racing car, the limiting block 13 is inserted into the limiting plate 82, the operating rod 4 is inserted into the L-shaped arm 5, the operating rod 4 is slowly pressed down forcefully, the L-shaped arm 5 rotates around the pin 2, the upper support frame 6 is pulled to move upwards in the vertical direction and abut against the bottom of the car until the operating rod 4 contacts the ground, and the racing car is stably lifted and locked due to the gravity action of the racing car, as shown in fig. 1, and an operator can perform maintenance and checking work at the moment. When the racing car is required to be put down, the operator lifts the operating rod 4 upwards, the racing car applies downward pressure to the upper supporting frame 6 under the action of gravity, the operating rod 4 is pulled forcefully until the racing car falls to the ground steadily, and the lowering operation is finished, so that the lifting device can be moved out of the bottom of the racing car.

While the foregoing is directed to embodiments of the present utility model, other and further embodiments of the utility model may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.

Claims

1. A gravity is from single quick lifting device of locking-type for racing car maintenance which characterized in that:

the lifting device comprises an upper supporting frame (6), a lower supporting frame (3), a supporting upright post (7) and an L-shaped arm (5), wherein one end of the upper supporting frame (6) is hinged with the lower supporting frame (3) through the supporting upright post (7), and the other end of the upper supporting frame is hinged with the lower supporting frame (3) through the L-shaped arm (5);

the L-shaped arm (5) comprises at least two lever uprights (51) and a connecting arm (52), the upper end and the lower end of the lever uprights (51) are respectively hinged with the upper support frame (6) and the lower support frame (3), and the lever uprights (51) are connected through the connecting arm (52);

when the connecting arm (52) is in contact with the ground, the L-shaped arm (5) is locked with the upper support frame (6).

2. A gravity self-locking single person quick lift device for racing maintenance as claimed in claim 1, wherein:

the lever upright post (51) is fixedly connected with the connecting arm (52).

3. A gravity self-locking single person quick lift device for racing maintenance as claimed in claim 1, wherein:

the included angle between the lever upright post (51) and the connecting arm (52) is 70-80 degrees.

4. A gravity self-locking single person quick lift device for racing maintenance as claimed in claim 1, wherein:

the lifting device further comprises an operating rod (4), and the operating rod (4) is detachably connected with the connecting arm (52).

5. A gravity self-locking single person quick lift device for racing maintenance as claimed in claim 4, wherein:

the connecting arm (52) is of a triangle structure, two ends of one side of the connecting arm (52) are fixedly connected with the lever upright post (51), and the opposite angle of the side is positioned at one side far away from the lower support frame (3);

the diagonal angle is provided with a through hole through which the operating rod (4) passes, and the edge is provided with a blind hole which is abutted with the end part of the operating rod (4).

6. A gravity self-locking single person quick lift device for racing maintenance as claimed in claim 5, wherein:

the L-shaped arm (5) further comprises a connecting sleeve (53), and the connecting sleeve (53) is sleeved on the outer side of the diagonal corner and is detachably connected with the connecting arm (52).

7. A gravity self-locking single person quick lift device for racing maintenance as claimed in claim 1, wherein:

the lower support frame (3) is of a rectangular structure, the upper support frame (6) is of a rectangular structure with one end open, and the opening is located at one end facing towards and close to the L-shaped arm (5).

8. A gravity self-locking single person quick lifting device for racing maintenance according to claim 7, wherein:

the lifting device further comprises a reinforcing rod (8), and the reinforcing rod (8) is fixedly connected in the rectangular frame of the upper supporting frame (6).

9. A gravity self-locking single person quick lifting device for racing maintenance according to claim 8, wherein:

the lifting device further comprises a rotary rocker arm (1), the rotary rocker arm (1) comprises a rotary rod (11) and a supporting arm (12), and the rotary rod (11) is fixedly connected with the supporting arm (12);

the rotating rod (11) is parallel to the ground and penetrates through the reinforcing rod (8) along the direction perpendicular to the reinforcing rod (8), and is movably connected with the reinforcing rod (8);

the supporting arm (12) is positioned between the closed end of the upper supporting frame (6) and the reinforcing rod (8).

10. A gravity self-locking single person quick lifting device for racing maintenance according to claim 9, wherein:

the rotary rocker arm (1) further comprises a limiting block (13), and the limiting block (13) is convexly arranged on the outer side of the rotary rod (11) and is arranged on the same side with the supporting arm (12);

the reinforcing rod (8) comprises a rod body (81) and a limiting plate (82), the limiting plate (82) is convexly arranged on one side, facing the L-shaped arm (5), of the rod body (81), and the limiting plate (82) can limit the limiting block (13).