CN220201267U

CN220201267U - Novel scissor jack

Info

Publication number: CN220201267U
Application number: CN202222616624.9U
Authority: CN
Inventors: 孙兆润; 孙建; 韩琪
Original assignee: Qingdao Zhaorun Auto Parts Co ltd
Current assignee: Qingdao Zhaorun Auto Parts Co ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-12-19
Anticipated expiration: 2032-09-30

Abstract

The utility model discloses a novel scissor jack, and relates to the technical field of jacks. This novel scissor jack includes: the lifting mechanism is arranged on the bottom plate and used for controlling the lifting of the jack, and comprises a supporting seat and two lower supporting arms, the bottom of the supporting seat is fixedly connected to the top of the bottom plate, and one ends of the two lower supporting arms are rotatably connected to the outer walls of the two sides of the supporting seat. This novel scissor jack, when two-way lead screw rotates and drives movable block and lower support arm and remove, the sliding plate along with lower support arm upward movement, and the back shaft can be along the sliding plate upward movement altogether this moment, and when the back shaft was from down upwards moving, can upwards from the arc part of arc piece, drive the bracing piece outwards to upwards moving that can be relaxed, and the upper end of arc piece is the plane, then the back shaft can't move down, thereby can guarantee when the jack upwards withstands article, can provide holding power for lower support arm.

Description

Novel scissor jack

Technical Field

The utility model relates to the technical field of jacks, in particular to a novel scissor jack.

Background

The jack is light and small lifting equipment which uses a rigid lifting piece as a working device and lifts a heavy object in a small stroke through a top bracket or a bottom supporting claw, and the scissor jack is one type of jack, is called as a scissor jack because of the structural appearance of the scissor jack, is called a bracket jack because of the structural appearance of the scissor jack, is convenient and quick to use, is suitable for mechanical maintenance, particularly maintenance of a car, and is stable and reliable and has high bearing capacity.

The scissor jack is small in size and convenient to carry, and can be carried on an automobile generally, so that tires can be replaced or used in maintenance conveniently in the road, but the bottom of the scissor jack used at present is small, some floors are not completely flat and have a small gradient, and when the scissor jack is used for lifting, the side support force is insufficient due to uneven road surfaces, and side tilting or side turning is easy to occur, so that danger occurs.

Disclosure of Invention

The utility model provides a novel scissor jack, which can provide larger supporting force when the jack lifts an article after being used, and does not have the phenomenon of side tilting.

In order to achieve the above purpose, the utility model is realized by the following technical scheme:

a novel scissor jack, comprising:

a bottom plate;

the lifting mechanism is arranged on the bottom plate and used for controlling the lifting of the jack, the lifting mechanism comprises a supporting seat and two lower supporting arms, the bottom of the supporting seat is fixedly connected to the top of the bottom plate, and one ends of the two lower supporting arms are both rotatably connected to the outer walls of the two sides of the supporting seat;

the two support mechanisms are respectively arranged on the corresponding lower support arms and used for providing support in the lifting process of the jack, each support mechanism comprises a sliding frame, a sliding plate and a support shaft, one end of each sliding plate is rotationally connected to the outer walls of two sides of one end of the corresponding lower support arm, each sliding plate is slidably embedded in the corresponding sliding frame, and each support shaft penetrates through the bottom of the corresponding sliding plate;

the plurality of locking mechanisms are arranged between the two sliding plates and the corresponding sliding frames and used for preventing the sliding plates from sliding downwards in the upward moving process; and:

the fixing mechanisms are arranged at four and are respectively arranged at two sides of the two sliding frames and used for fixing the supporting mechanism.

As the novel scissor jack, the lifting mechanism further comprises two upper supporting arms, two moving blocks, a top block and a bidirectional screw rod, one ends of the two upper supporting arms are respectively connected to the tops of the outer walls of the two sides of the corresponding moving blocks in a rotating mode, the other ends of the two upper supporting arms are respectively connected to the outer walls of the two sides of the top block in a rotating mode, the bottoms of the outer walls of the two sides of the two moving blocks are respectively connected to one ends of the corresponding lower supporting arms in a rotating mode, and the bidirectional screw rod penetrates through the space between the two moving blocks in a sliding mode.

As the novel scissor jack, the locking mechanisms comprise arc blocks, supporting rods, first springs and two fixing blocks, the two sides of each sliding frame are provided with a plurality of notches, one ends of the arc blocks are slidably embedded in the notches, the bottoms of the two fixing blocks are fixedly connected to one side outer wall of each sliding frame, the bottoms of the two side outer walls of each supporting rod are rotatably connected to one side outer wall of the corresponding fixing block, the top of one side outer wall of each supporting rod is fixedly connected to the arc block, one end of each first spring is fixedly connected to one side outer wall of each supporting rod, and the other end of each first spring is fixedly connected to one side outer wall of each sliding frame.

As the novel scissor jack, two second springs are fixedly connected to the outer walls of two sides of the sliding frame, one ends of the two second springs are fixedly connected with connecting rods, and one side outer wall of each connecting rod is fixedly connected to the bottoms of one side outer walls of the supporting rods.

As the novel scissor jack, the bottoms of the two sliding frames are respectively penetrated by the rotating shafts in a sliding way, and the top of the bottom plate is fixedly connected with the two compression blocks.

As the novel scissor jack, the four fixing mechanisms comprise fixing plates, suckers, threaded rods and spiral blocks, wherein the outer wall of one side of each fixing plate is fixedly connected with one end of a rotating shaft, threads are formed in the inner wall of each fixing plate, the threaded rods are in threaded connection with the fixing plates, one end of each threaded rod is fixedly connected with each spiral block, and the other end of each threaded rod is fixedly connected with each sucker.

As the novel scissor jack, one end of the bidirectional screw rod is fixedly connected with the connecting seat, the outer wall of one side of the connecting seat is provided with the socket, and the other end of the bidirectional screw rod is fixedly connected with the limiting block.

The utility model provides a novel scissor jack. The beneficial effects are as follows:

(1) When the novel scissor jack is used, through the establishment of a sliding frame, a sliding plate, a supporting shaft, an arc-shaped block, a supporting rod, a first spring, a second spring, a connecting rod and a fixed block, when the bidirectional screw rod rotates to drive the moving block and the lower supporting arm to move, the sliding plate moves upwards along with the lower supporting arm, at the moment, the supporting shaft can move upwards along the sliding plate, when the supporting shaft moves upwards from below, the supporting rod can be driven to rotate outwards from the arc-shaped part of the arc-shaped block, so that the supporting rod can move upwards easily, the upper end of the arc-shaped block is a plane, the supporting shaft cannot move downwards, so that when the jack upwards props against an article, the supporting force can be provided for the lower supporting arm to prevent the side from tilting, and when the jack needs to shrink, the connecting rod can drive the first spring connected to one side of the supporting rod to compress, so that the supporting rod drives the arc-shaped block to rotate outwards, and at the moment, the supporting shaft can move downwards.

(2) When the novel scissor jack is used, through the establishment of the rotating shaft, the fixed plate, the sucking disc, the threaded rod and the spiral block, the sliding frame and the sliding plate are rotated to the corresponding installation positions, the bottom surface of the sucking disc is parallel to the ground through the rotating shaft, the threaded rod is moved downwards through the rotating threaded block, the sucking disc is contacted with the ground, and the threaded block is rotated again, so that the sucking disc can be firmly adsorbed on the ground, and the sliding frame is fixed and the supporting force is provided.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a cross-sectional view of the present utility model;

FIG. 3 is an exploded view of the present utility model;

fig. 4 is an enlarged view of a portion of section a of fig. 1 in accordance with the present utility model.

In the figure: 1. a bottom plate; 2. a support base; 3. a lower support arm; 4. an upper support arm; 5. a moving block; 6. a compression block; 7. a top block; 8. a two-way screw rod; 9. a connecting seat; 10. a carriage; 11. a sliding plate; 12. a rotating shaft; 13. an arc-shaped block; 14. a support rod; 15. a first spring; 16. a second spring; 17. a connecting rod; 18. a fixed block; 19. a support shaft; 20. a fixing plate; 21. a suction cup; 22. a threaded rod; 23. a screw block; 24. and a limiting block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Examples of the embodiments are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements throughout or elements having like or similar functionality. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution:

a novel scissor jack, comprising:

a base plate 1;

the lifting mechanism is arranged on the bottom plate 1 and used for controlling the lifting of the jack, and comprises a supporting seat 2 and two lower supporting arms 3, wherein the bottom of the supporting seat 2 is fixedly connected to the top of the bottom plate 1, and one ends of the two lower supporting arms 3 are respectively and rotatably connected to the outer walls of the two sides of the supporting seat 2;

the two supporting mechanisms are respectively arranged on the corresponding lower supporting arms 3 and used for providing support in the lifting process of the jack, each supporting mechanism comprises a sliding frame 10, sliding plates 11 and supporting shafts 19, one ends of the two sliding plates 11 are rotationally connected to the outer walls of two sides of one end of the corresponding lower supporting arm 3, the two sliding plates 11 are slidably embedded in the corresponding sliding frames 10, and the two supporting shafts 19 penetrate through the bottoms of the corresponding sliding plates 11;

a plurality of locking mechanisms, which are arranged between the two sliding plates 11 and the corresponding sliding frames 10 and are used for preventing the sliding plates 11 from sliding downwards in the upward moving process; and:

the fixing mechanisms are arranged on four sides of the two sliding frames 10 respectively and used for fixing the supporting mechanisms.

In this embodiment: by moving the two lower support arms 3, the carriage 10 and the slide plate 11, which are correspondingly rotatably connected to the lower support arms 3, are also relatively moved, thereby providing lateral support force during movement, preventing rolling.

Specifically, elevating system still includes two upper support arms 4, two movable blocks 5, kicking block 7 and two-way lead screw 8, and the one end of two upper support arms 4 is all rotated and is connected on the both sides outer wall top of corresponding movable block 5, and the other end of two upper support arms 4 is all rotated and is connected on the both sides outer wall of kicking block 7, and the both sides outer wall bottom of two movable blocks 5 is all rotated and is connected in the one end of corresponding lower support arm 3, and two-way lead screw 8 slip runs through between two movable blocks 5.

In this embodiment: when the bidirectional screw rod 8 rotates, the two moving blocks 5 move in opposite directions, and at the moment, the two upper supporting arms 4 and the two lower supporting arms 3 are driven to move together, so that an article can be jacked up through the jacking block 7.

Specifically, the plurality of locking mechanisms all include arc piece 13, bracing piece 14, first spring 15 and two fixed blocks 18, a plurality of notches have all been seted up to the both sides of two carriage 10, the one end slip of arc piece 13 is inlayed and is located in the notch, the bottom of two fixed blocks 18 is all fixed connection on the outer wall of one side of carriage 10, the both sides outer wall bottom of bracing piece 14 is all rotated and is connected on the outer wall of one side of corresponding fixed block 18, one side outer wall top fixed connection of bracing piece 14 is in arc piece 13, one end fixed connection of first spring 15 is in one side outer wall of bracing piece 14, the other end fixed connection of first spring 15 is in one side outer wall of carriage 10.

In this embodiment: when the supporting shaft 19 moves upwards along with the bottom, the arc-shaped parts of the arc-shaped blocks 13 can be touched, and one end of the supporting rod 14 corresponding to the arc-shaped blocks 13 is rotationally connected to the fixed block 18, so that the arc-shaped blocks 13 can be driven to outwards overturn, the supporting shaft 19 can easily move upwards, the tops of the arc-shaped blocks 13 are arranged to be flat, the supporting shaft 19 cannot move downwards, and therefore, in the jack lifting process, enough lateral supporting force can be provided, and the occurrence of side inclination is prevented.

Specifically, two second springs 16 are fixedly connected to outer walls of two sides of the two sliding frames 10, one ends of the two second springs 16 are fixedly connected with connecting rods 17, and one side outer wall of each connecting rod 17 is fixedly connected to the bottoms of one side outer walls of the plurality of supporting rods 14.

In this embodiment: when the sliding frame is folded after the use, the connecting rods 17 are pressed, the first springs 15 fixed on one side of each supporting rod 14 are compressed downwards, so that the corresponding supporting rods 14 and the arc-shaped blocks 13 can be driven to rotate outwards, and the supporting shafts 19 and the sliding plates 11 can move downwards to be retracted into the sliding frame 10.

Specifically, the bottoms of the two sliding frames 10 are all penetrated by a rotating shaft 12 in a sliding way, and the top of the bottom plate 1 is fixedly connected with two compression blocks 6.

In this embodiment: when the sliding frame 10 and the sliding plate 11 move along with the lower supporting arm 3, the sliding frame 10 and the rotating shaft 12 are subjected to forces in two directions, the sliding frame 10 can rotate around the rotating shaft 12 in the moving process, and the sliding frame 10 and the sliding plate 11 are folded on the bottom plate 1 when the compression block 6 is not needed to be used, so that the sliding frame is convenient to store.

Specifically, the four fixing mechanisms all include fixed plate 20, sucking disc 21, threaded rod 22 and screw block 23, and one side outer wall fixed connection of fixed plate 20 is in the one end of axis of rotation 12, and the screw thread is seted up to the inner wall of fixed plate 20, and threaded rod 22 threaded connection is in fixed plate 20, and one end fixed connection of threaded rod 22 is in screw block 23, and the other end fixed connection of threaded rod 22 is in sucking disc 21.

In this embodiment: the fixing plate 20 is fixedly connected with one end of the rotating shaft 12, the bottom surface of the suction cup 21 is parallel to the bottom surface by rotating the rotating shaft 12, and the threaded rod 22 is downwards moved by rotating the screw block 23, so that the suction cup 21 can be firmly adsorbed on the ground.

Specifically, one end fixedly connected with connecting seat 9 of two-way lead screw 8, the socket has been seted up to the outer wall of one side of connecting seat 9, and the other end fixedly connected with stopper 24 of two-way lead screw 8.

In this embodiment: the inserted rod is inserted into the socket formed by the connecting seat 9, the bidirectional screw rod 8 is driven to rotate by rotating the inserted rod, and the limiting block 24 can prevent the movable block 5 from rotating out of the bidirectional screw rod 8.

When in use, firstly, the two compression blocks 6 are pressed down, the two sliding frames 10 and the sliding plates 11 are pulled out, the bottom surface of the sucker 21 is parallel to the bottom surface by rotating the rotating shaft 12, then the threaded rod 22 is moved downwards by rotating the spiral block 23, so that the sucker 21 can be firmly adsorbed on the ground, then the inserting rod is inserted into the inserting hole formed in the connecting seat 9, the bidirectional screw rod 8 is driven to rotate by rotating the inserting rod, so that the two moving blocks 5 sleeved on the bidirectional screw rod 8 can be driven to move inwards, the two lower supporting arms 3 and the two upper supporting arms 4 are driven to move inwards, so that the article is jacked up, at the moment, the two sliding plates 11 rotatably connected on the two lower supporting arms 3 also move together, the two sliding frames 10 are eccentrically rotated on the rotating shaft 12, the sliding plates 11 move forwards in the corresponding sliding frames 10, the supporting shaft 19 fixed at the bottom of the sliding plate 11 also moves along with the movement, when the supporting shaft 19 moves upwards from the bottom, the arc parts of the arc blocks 13 are touched, because one end of the supporting rod 14 corresponding to the arc blocks 13 is rotationally connected with the fixed block 18, the arc blocks 13 are driven to turn outwards, the supporting shaft 19 can easily move upwards, the tops of the arc blocks 13 are arranged to be flat, the supporting shaft 19 cannot move downwards, thereby ensuring that enough lateral supporting force can be provided in the jack lifting process to prevent the occurrence of rolling, when the jack lifting process is finished, when the jack lifting process is needed to be folded, the connecting rod 17 is compressed downwards by pressing the connecting rod 17, the first spring 15 fixed on one side of each supporting rod 14 can drive the corresponding supporting rod 14 and the arc blocks 13 to rotate outwards, at the moment, the supporting shaft 19 and the sliding plate 11 can move downwards, the sliding plate 11 is rotated by pushing the compression block 6 after being retracted into the sliding frame 10, and the sliding plate 11 and the sliding frame 10 are retracted onto the base plate 1.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. A novel scissor jack, comprising:

a bottom plate (1);

the lifting mechanism is arranged on the bottom plate (1) and used for controlling the lifting of the jack, the lifting mechanism comprises a supporting seat (2) and two lower supporting arms (3), the bottom of the supporting seat (2) is fixedly connected to the top of the bottom plate (1), and one ends of the two lower supporting arms (3) are both rotationally connected to the outer walls of the two sides of the supporting seat (2);

the two support mechanisms are respectively arranged on the corresponding lower support arms (3) and used for providing support in the lifting process of the jack, each support mechanism comprises a sliding frame (10), sliding plates (11) and a support shaft (19), one ends of the two sliding plates (11) are respectively connected to the outer walls of two sides of one end of the corresponding lower support arm (3) in a rotating mode, the two sliding plates (11) are respectively embedded in the corresponding sliding frames (10) in a sliding mode, and the two support shafts (19) penetrate through the bottoms of the corresponding sliding plates (11);

the locking mechanisms are arranged between the two sliding plates (11) and the corresponding sliding frames (10) and used for preventing the sliding plates (11) from sliding downwards in the upward moving process; and:

the fixing mechanisms are arranged at four sides of the two sliding frames (10) respectively and used for fixing the supporting mechanisms.

2. A novel scissor jack according to claim 1, wherein: elevating system still includes two upper support arms (4), two movable blocks (5), kicking block (7) and two-way lead screw (8), two on the one end of upper support arm (4) all rotates to be connected on the both sides outer wall top of corresponding movable block (5), two the other end of upper support arm (4) all rotates to be connected on the both sides outer wall of kicking block (7), two the both sides outer wall bottom of movable block (5) all rotates to be connected in the one end of corresponding lower support arm (3), two-way lead screw (8) slip run through between two movable blocks (5).

3. A novel scissor jack according to claim 2, wherein: the locking mechanism comprises an arc-shaped block (13), a supporting rod (14), a first spring (15) and two fixing blocks (18), wherein a plurality of notches are formed in two sides of the sliding frame (10), one end of the arc-shaped block (13) is slidably embedded in the notches, the bottoms of the fixing blocks (18) are fixedly connected to one side outer wall of the sliding frame (10), the bottoms of the two side outer walls of the supporting rod (14) are rotatably connected to one side outer wall of the corresponding fixing block (18), the top of one side outer wall of the supporting rod (14) is fixedly connected to the arc-shaped block (13), one end of the first spring (15) is fixedly connected to one side outer wall of the supporting rod (14), and the other end of the first spring (15) is fixedly connected to one side outer wall of the sliding frame (10).

4. A novel scissor jack according to claim 3, characterized in that: two second springs (16) are fixedly connected to the outer walls of the two sides of the sliding frame (10), connecting rods (17) are fixedly connected to one ends of the second springs (16), and one side outer wall of each connecting rod (17) is fixedly connected to the bottoms of one side outer walls of the supporting rods (14).

5. The novel scissor jack of claim 4, wherein: the bottoms of the two sliding frames (10) are respectively penetrated by a rotating shaft (12) in a sliding way, and the top of the bottom plate (1) is fixedly connected with two compression blocks (6).

6. The novel scissor jack of claim 5, wherein: four fixed establishment is all including fixed plate (20), sucking disc (21), threaded rod (22) and screw block (23), one side outer wall fixed connection of fixed plate (20) is in the one end of axis of rotation (12), the screw thread is seted up to the inner wall of fixed plate (20), threaded rod (22) threaded connection is in fixed plate (20), one end fixed connection of threaded rod (22) is in screw block (23), the other end fixed connection of threaded rod (22) is in sucking disc (21).

7. The novel scissor jack of claim 6, wherein: one end fixedly connected with connecting seat (9) of two-way lead screw (8), the socket has been seted up to the outer wall of one side of connecting seat (9), the other end fixedly connected with stopper (24) of two-way lead screw (8).