CN215513626U

CN215513626U - High-strength aluminum support leg

Info

Publication number: CN215513626U
Application number: CN202120044172.4U
Authority: CN
Inventors: 艾兴通; 苗宪利
Original assignee: Shandong Botong Aluminum Technology Co ltd
Current assignee: Shandong Botong Aluminum Technology Co ltd
Priority date: 2021-01-08
Filing date: 2021-01-08
Publication date: 2022-01-14
Anticipated expiration: 2031-01-08

Abstract

The utility model discloses a high-strength aluminum support leg which comprises an outer support column, an inner support column and a crank, wherein a support base is installed at the bottom end of the outer portion of the outer support column, the inner support column is installed inside the outer support column in a sliding mode, a cavity is designed inside the inner support column, racks are arranged in the middle of two sides inside the inner support column in a linear array mode from top to bottom, bearings A are symmetrically embedded into two sides of the inner wall of the upper end of the outer support column in a pairwise mode, a circular shaft B is installed between every two bearings A, one end of each of the two circular shafts B penetrates through the outer support column and extends to the outer end, lifting gears are installed on the two circular shafts B, the lifting gears are located in the outer support column and correspond to the positions of the racks on two sides of the inner support column, the two lifting gears are in meshed connection with the racks on two sides of the inner support column, and auxiliary driving gears are symmetrically installed on the two circular shafts B, which are located on the outer end of the outer support column. The utility model replaces the traditional screw rod transmission by gear transmission, and solves the problems of easy locking, inconvenient use, low service life and the like.

Description

High-strength aluminum support leg

Technical Field

The utility model relates to the technical field of supporting legs, in particular to a high-strength aluminum supporting leg.

Background

A trailer is a transportation tool which is widely used in modern transportation industry, the front end of the trailer can be connected with a tractor to be supported and dragged by the tractor when the trailer is running, the front end of the trailer can be disconnected from the tractor when the trailer is not running, and trailer legs are often arranged at the bottom of the trailer close to the front end in order to support the front end of the trailer after the trailer is disconnected.

Current trailer landing leg structure generally includes outer support leg and inner support leg, and current trailer landing leg is not convenient for lubricate its inside part to lead to the landing leg to use after a period, transmission input resistance increase, and traditional trailer landing leg is all through screw drive, leads to the lock to die easily, is not convenient for use, and life is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high-strength aluminum support leg which has the advantages of high strength, convenience and labor saving in use, no need of worrying about lubrication locking and the like, and solves the problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a high strength aluminium landing leg, includes outer support column, interior support column and crank, the support base is installed to the outside bottom of outer support column, and the inside slidable mounting of outer support column has interior support column, the inside cavity design that is of interior support column, from the top down is sharp array distribution and installs the rack in the middle of the inside both sides of interior support column, the embedded bearing A of installing of two bisymmetry in outer support column upper end inner wall both sides, installs round axle B between per two bearing A, and two round axle B wherein one end runs through outer support column and stretch to the outer end, and two round axle B are located the rack position that outer support column inside correspondence interior support column both sides were equipped with and install the promotion gear, and two promotion gears are connected with the rack toothing that inner support column both sides were equipped with, and two round axle B are located the outer support column outer end and symmetrically install vice drive gear.

Preferably, a bearing B is embedded between two bearings A on the inner wall of one side of the auxiliary driving gear of the outer support column.

Preferably, the upper end of the outer support column is located at the outer end of one side of the auxiliary drive gear and is provided with a U-shaped frame, a circular shaft A is arranged in the middle of a cross beam of the U-shaped frame in a penetrating mode, one end of the circular shaft A penetrates through the outer support column and is arranged on the bearing B, and a rectangular groove is formed in the other end of the circular shaft A.

Preferably, a main driving gear is installed between the two auxiliary driving gears in the U-shaped frame on the circular shaft A, and the main driving gear is meshed with the two auxiliary driving gears.

Preferably, the end of the crank is designed to be a rectangular block, the size of the rectangular block is consistent with that of the rectangular groove, and the crank is inserted into the rectangular groove through the rectangular block at the end to rotate the circular shaft A.

Preferably, the top end of the inner support column is provided with a supporting top plate, and two ends of the supporting top plate are symmetrically provided with mounting seats in pairs

Preferably, the circular shaft B is located on two sides of the lifting gear and is movably provided with circular rings, the lower ends of the four circular rings are provided with supporting rods, and the other ends of the supporting rods penetrate through the bottom of the inner supporting column and are fixed on the outer supporting column.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the end of the crank handle is inserted into the rectangular groove formed in one end of the round shaft A, the crank handle is rotated, the crank handle rotates to drive the round shaft A to rotate, so that the main driving gear mounted on the round shaft A is driven to rotate, the main driving gear rotates to drive the two auxiliary driving gears meshed with the main driving gear to rotate, the two auxiliary driving gears rotate to drive the two round shafts B to rotate, so that the two lifting gears coaxially mounted are driven to rotate, the two lifting gears are meshed and connected with the racks arranged on the two sides of the inner supporting column, so that the inner supporting column extends out, and the inner supporting column is fixed, so that the outer supporting column can move downwards to the ground, and the trailer is supported.

2. According to the utility model, the circular shafts B are movably arranged on two sides of the lifting gear, the lower ends of the four circular rings are provided with the supporting rods, and the other ends of the supporting rods penetrate through the bottom of the inner supporting column and are fixed on the outer supporting column, so that the circular shafts B are supported, the deformation cannot occur after long-time use, and the service life is prolonged.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of the present invention;

FIG. 3 is a top cross-sectional view of the present invention;

FIG. 4 is a side view of the present invention;

fig. 5 is an enlarged structural view of a in fig. 4 according to the present invention.

In the figure: 1. a support base; 2. an outer support column; 3. an inner support column; 4. a mounting seat; 5. supporting a top plate; 6. a U-shaped frame; 7. a circular axis A; 8. a rectangular groove; 9. a crank; 10. a circular shaft B; 11. a main drive gear; 12. a counter drive gear; 13. a bearing A; 14. a bearing B; 15. a lifting gear; 16. a circular ring; 17. a rack; 18. a support rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 5, the present invention provides a high strength aluminum leg, which comprises: a high-strength aluminum support leg comprises an outer support column 2, an inner support column 3 and a crank 9, wherein a support base 1 is installed at the bottom end of the outer portion of the outer support column 2, the inner support column 3 is installed inside the outer support column 2 in a sliding mode, a support top plate 5 is installed at the top end of the inner support column 3, and installation bases 4 are installed at two ends of the support top plate 5 in pairwise symmetry; on whole device passed through the fixed trailer of four mount pads 4 that 5 both sides of roof support were equipped with, roof support 5 and support base 1 can increase the support area, make whole support more steady. The inner supporting column 3 is designed to be a cavity, racks 17 are distributed in a linear array from top to bottom in the middle of two sides in the inner supporting column 3, bearings A13 are symmetrically embedded in two pairs in two sides of the inner wall of the upper end of the outer supporting column 2, a circular shaft B10 is installed between every two bearings A13, one end of each circular shaft B10 penetrates through the outer supporting column 2 and extends to the outer end, lifting gears 15 are installed at positions, corresponding to the racks 17 arranged at two sides of the inner supporting column 3, of the two circular shafts B10, two lifting gears 15 are meshed and connected with the racks 17 arranged at two sides of the inner supporting column 3, auxiliary driving gears 12 are symmetrically installed at the outer ends of the two circular shafts B10, bearings B14 are embedded in the middle of the two bearings A13 on the inner wall of one side of the auxiliary driving gear 12 of the outer supporting column 2, a U-shaped bracket 6 is installed at one side of the auxiliary driving gear 12 at the upper end of the outer supporting column 2, a circular shaft A7 penetrates through the middle of the U-shaped bracket 6, one end of a circular shaft A7 penetrates through the outer support column 2 and is mounted on a bearing B14, a rectangular groove 8 is formed in the other end of the circular shaft A7, a main driving gear 11 is mounted between two auxiliary driving gears 12 in the U-shaped frame 6 on the circular shaft A7, the main driving gear 11 is meshed with the two auxiliary driving gears 12, the end of a crank 9 is designed to be a rectangular block, the size of the rectangular block is consistent with that of the rectangular groove 8, and the crank 9 is inserted into the rectangular groove 8 through the rectangular block at the end to rotate the circular shaft A7; insert the end of crank 9 in the rectangle recess 8 that round axle A7 one end was seted up, rotate crank 9, crank 9 rotates and drives round axle A7 and rotate, thereby drive the main drive gear 11 rotation of installing on it, main drive gear 11 rotates and drives two pinion drive gears 12 of being connected rather than the meshing and rotate, two pinion drive gears 12 rotate and drive two round axle B10 rotations, thereby drive two lifting gear 15 rotations of coaxial arrangement, two lifting gear 15 are connected with the rack 17 meshing that inner support post 3 both sides were equipped with, thereby make inner support post 3 stretch out, because inner support post 3 is fixed, so outer support post 2 can the ground that moves down, prop up the trailer.

The circular shafts B10 are positioned at two sides of the lifting gear 15 and are respectively and movably provided with a circular ring 16, the lower ends of the four circular rings 16 are provided with supporting rods 18, and the other ends of the supporting rods 18 penetrate through the bottom of the inner supporting column 3 and are fixed on the outer supporting column 2; the round shaft B10 is supported by the four support rods 18, so that the round shaft B10 can be used for a long time without deformation, and the service life of the whole device is prolonged.

The working principle is as follows: when the device is used, firstly, the whole device is fixed on a trailer through four mounting seats 4 arranged on two sides of a supporting top plate 5, when the trailer needs to be separated from a tractor when not running, the end of a crank handle 9 is inserted into a rectangular groove 8 formed in one end of a round shaft A7, the crank handle 9 is rotated, the crank handle 9 rotates to drive the round shaft A7 to rotate, so as to drive a main driving gear 11 arranged on the crank handle to rotate, the main driving gear 11 rotates to drive two auxiliary driving gears 12 in meshed connection with the main driving gear 11 to rotate, the two auxiliary driving gears 12 rotate to drive two round shafts B10 to rotate, so as to drive two lifting gears 15 coaxially arranged to rotate, the two lifting gears 15 are in meshed connection with racks 17 arranged on two sides of an inner supporting column 3, so that the inner supporting column 3 extends out, and because the inner supporting column 3 is fixed, the outer supporting column 2 moves downwards to the ground to support the trailer.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high strength aluminium landing leg, includes outer support column (2), interior support column (3) and crank (9), its characterized in that: the utility model discloses a support structure, including outer support column (2), support base (1) is installed to outer support column (2) outside bottom, and outer support column (2) inside slidable mounting has interior support column (3), interior support column (3) inside is the cavity design, and the middle from the top down that is in the inside both sides of interior support column (3) is linear array distribution and installs rack (17), bearing A (13) are installed to two bisymmetry embeddings in outer support column (2) upper end inner wall both sides, install round axle B (10) between per two bearing A (13), and two round axle B (10) wherein one end runs through outer support column (2) and stretch to the outer end, and two round axle B (10) are located rack (17) positions that outer support column (2) inside correspondence interior support column (3) both sides were equipped with and install promotion gear (15), and two promotion gear (15) are connected with the meshing of rack (17) that interior support column (3) both sides were equipped with, the two circular shafts B (10) are symmetrically provided with auxiliary driving gears (12) at the outer ends of the outer supporting columns (2).

2. A high strength aluminum leg as set forth in claim 1, wherein: and a bearing B (14) is embedded between two bearings A (13) positioned on the inner wall of one side of the auxiliary driving gear (12) of the outer support column (2).

3. A high strength aluminum leg as set forth in claim 1, wherein: the upper end of the outer support column (2) is located at the outer end of one side of the auxiliary drive gear (12) and is provided with a U-shaped frame (6), a circular shaft A (7) penetrates through the middle of a cross beam of the U-shaped frame (6), one end of the circular shaft A (7) penetrates through the outer support column (2) and is installed on a bearing B (14), and a rectangular groove (8) is formed in the other end of the circular shaft A (7).

4. A high strength aluminum leg as set forth in claim 3, wherein: and a main driving gear (11) is arranged between the two auxiliary driving gears (12) in the U-shaped frame (6) on the circular shaft A (7), and the main driving gear (11) is meshed with the two auxiliary driving gears (12).

5. A high strength aluminum leg as set forth in claim 1, wherein: the end of the crank (9) is designed as a rectangular block, the size of the rectangular block is consistent with that of the rectangular groove (8), and the crank (9) is inserted into the rectangular groove (8) through the rectangular block at the end to rotate the circular shaft A (7).

6. A high strength aluminum leg as set forth in claim 1, wherein: supporting top plate (5) are installed on inner support post (3) top, and mount pad (4) are installed to two bisymmetry in supporting top plate (5) both ends.

7. A high strength aluminum leg as set forth in claim 1, wherein: the round shaft B (10) is located the equal movable mounting in lifting gear (15) both sides and has ring (16), and bracing piece (18) are installed to four ring (16) lower extremes, and the bracing piece (18) other end runs through inner prop (3) bottom and fixes on outer prop (2).