CN111098275A

CN111098275A - Support column locking device

Info

Publication number: CN111098275A
Application number: CN202010019546.7A
Authority: CN
Inventors: 冉灵; 谢华敏; 周海斌; 廖勇; 黄佳华; 文建东; 赖春辉
Original assignee: Dongfeng Liuzhou Motor Co Ltd
Current assignee: Dongfeng Liuzhou Motor Co Ltd
Priority date: 2020-01-08
Filing date: 2020-01-08
Publication date: 2020-05-05

Abstract

The invention discloses a locking device of a support upright post, which comprises a square support upright post, a support sleeve sleeved outside the support upright post and a bolt for connecting the support upright post and the support sleeve, wherein the support upright post is provided with a plurality of positioning grooves from top to bottom on one side which is not connected with the bolt; the support sleeve is connected through from last spacing slot hole extremely down the bolt, the support sleeve in one side that the support post is equipped with positioning groove is equipped with spherical dop, the head of spherical dop is globular, the outer horizontal cover of spherical dop has the cylinder sleeve, there is screw adjustment head cylinder sleeve end through threaded connection at the end of the cylinder sleeve, spherical dop in the cylinder sleeve with screw adjustment is equipped with the spring between the head. The invention can solve the problems of troublesome switching operation and low switching efficiency of the locking device of the support upright post.

Description

Support column locking device

Technical Field

The invention relates to the technical field of automobile part manufacturing, in particular to a locking device of a supporting stand column.

Background

Because the structure and the size of oil tank are not of the same size, the switching of the support columns with different heights needs to be carried out.

The locking device of the existing supporting upright post generally comprises a supporting upright post with a through hole, a supporting square tube sleeved outside the upright post, a plurality of positioning holes are arranged on the supporting square tube from top to bottom, the through hole on the supporting upright post is connected with the plurality of positioning holes on the supporting square tube through a bolt, so that the height of the square tube is adjusted, and the bolt is fixed by a split pin. When the locking device switches the supporting height, the bolt needs to be detached firstly, the position is adjusted and the bolt is installed in a corresponding hole position, and then the bolt is installed again for fixing, so that the operation is complex and the time consumption is large; and after the split pin is bent for many times, the loss is large, and the fatigue failure is easy to occur.

Disclosure of Invention

The invention aims to provide a locking device of a support upright post to solve the problems of troublesome switching operation and low switching efficiency of the locking device of the support upright post.

In order to solve the problems, the technical scheme of the invention is as follows: the locking device for the support upright column comprises a square support upright column, a support sleeve sleeved outside the support upright column and a bolt for connecting the support upright column and the support sleeve, wherein a plurality of positioning grooves are formed in the support upright column from top to bottom on the side which is not connected with the bolt; the support sleeve is connected through from last spacing slot hole extremely down the bolt, the support sleeve in one side that the support post is equipped with positioning groove is equipped with spherical dop, the head of spherical dop is globular, the outer horizontal cover of spherical dop has the cylinder sleeve, there is screw adjustment head cylinder sleeve end through threaded connection at the end of the cylinder sleeve, spherical dop in the cylinder sleeve with screw adjustment is equipped with the spring between the head.

In the above technical solution, a more specific solution may be: the positioning groove is 120-degree V-shaped.

Further: the positioning groove is of a V shape inclined up and down.

Further: the number of the positioning grooves is three.

Due to the adoption of the technical scheme, compared with the prior art, the invention has the following beneficial effects:

the locking device of the supporting upright post adopts the limiting long hole of the bolt on the supporting sleeve, the height difference between the supporting upright post and the supporting sleeve can be adjusted steplessly, and then the locking device is matched with a transversely arranged spring with a spherical chuck and a positioning groove for pre-tightening the supporting upright post by a screw adjusting handle, so that the locking is more reliable, the spherical chuck is arranged in the positioning groove, the locking force of the spherical chuck is the pre-pressure of the spring, the head can be adjusted by the screw adjusting handle, the positioning groove is a triangular body with the apex angle of 120 degrees, and the force of the spherical chuck separating from the positioning groove is 3 times of the root of the spring pressure when the supporting upright post moves up and down; the limiting groove with a special shape is convenient for the locking and the entering and the exiting of the spherical chuck; when the height of the vertical supporting column is switched, the head extrusion spring is adjusted by rotating the screw to tightly extrude the spherical chuck on the surface of the supporting upright column, the bolt can be directly held by hands to drive the supporting upright column to be pulled upwards or pressed downwards, the positioning grooves are formed in different positions on the supporting upright column, free and arbitrary adjustment of various heights can be realized, when the supporting upright column moves to the position of the positioning groove, the spring can prop against the spherical chuck and is clamped into the positioning groove, and locking is completed; the locking device for the supporting stand column can be used for highly switching the supporting stand column of the oil tank assembly tool, is simple in structure, easy to machine, low in cost and easy to switch, only needs to directly plug and pull the supporting stand column, is high in efficiency and flexible to adjust, locks through the pre-pressure of the spring, and can control the locking force through adjusting the pre-pressure of the spring to realize multi-occasion adaptation.

Drawings

FIG. 1 is a front view of an embodiment of the present invention;

fig. 2 is a top view of an embodiment of the present invention.

Detailed Description

The embodiments of the invention will be described in further detail with reference to the accompanying drawings:

the supporting column locking device shown in fig. 1 and 2 comprises a square supporting column 1, a supporting sleeve 2 sleeved outside the supporting column 1, and a bolt 7 for connecting the supporting column 1 and the supporting sleeve 2, wherein the bolt is fixed through a split pin, three positioning grooves 8 are formed in one side of the supporting column 1, which is not connected with the bolt 7, from top to bottom, the positioning grooves 8 are 120-degree V-shaped, the positioning grooves 8 are vertically inclined V-shaped, and the special-shaped limiting grooves 8 facilitate the locking and the entering and exiting of the spherical chuck 3; the supporting sleeve 2 is connected with the bolt 7 through a limiting long hole from top to bottom, so that the height difference between the supporting upright post 1 and the supporting sleeve 2 can be adjusted steplessly.

The supporting sleeve 2 is provided with a spherical chuck 3 on one side of the supporting upright post 1 provided with a positioning groove 8, the head of the spherical chuck 3 is spherical, the spherical chuck 3 is transversely sleeved with a cylindrical sleeve 6, the tail end of the cylindrical sleeve 6 is connected with a screw adjusting handle 5 through a thread, a spring 4 is arranged between the spherical chuck 3 in the cylindrical sleeve 6 and the screw adjusting handle 5, the spherical chuck 3 is arranged in the positioning groove 8, the locking force of the spherical chuck 3 is the pre-pressure of the spring 4, the handle 5 can be adjusted in force size through screw adjustment, the positioning groove 8 is a triangular body with a vertex angle of 120 degrees, and the force of the spherical chuck 3 separating from the positioning groove 8 due to the up-and-down movement of the supporting upright post 1 is 3 times of the root.

When switching upright support post 1 height, 5 extrusion spring 4 of head are adjusted through rotatory screw and are pressed 3 locking of spherical dop and extrude on support post 1 surface, can directly hand bolt 7 and drive support post 1 and upwards pull out or push down, through leaving positioning groove 8 in support post 1 upper differential position, can realize the free arbitrary regulation of multiple height, when support post 1 removes to positioning groove 8 position department, spherical dop 3 can be withstood to spring 4, go into positioning groove 8, accomplish locking.

The locking device for the supporting stand column can be used for highly switching the supporting stand column of the oil tank assembly tool, is simple in structure, easy to machine, low in cost and easy to switch, only needs to directly plug and pull the supporting stand column, is high in efficiency and flexible to adjust, locks through the pre-pressure of the spring, and can control the locking force through adjusting the pre-pressure of the spring to realize multi-occasion adaptation.

Claims

1. The utility model provides a support post locking device, includes the support post and the suit of square support post outer support sleeve, still including connecting the support post with support sleeve's bolt, its characterized in that: the supporting upright post is provided with a plurality of positioning grooves from top to bottom on one side which is not connected with the bolt; the support sleeve is connected through from last spacing slot hole extremely down the bolt, the support sleeve in one side that the support post is equipped with positioning groove is equipped with spherical dop, the head of spherical dop is globular, the outer horizontal cover of spherical dop has the cylinder sleeve, there is screw adjustment head cylinder sleeve end through threaded connection at the end of the cylinder sleeve, spherical dop in the cylinder sleeve with screw adjustment is equipped with the spring between the head.

2. The support post locking device of claim 1, wherein: the positioning groove is 120-degree V-shaped.

3. A support post locking device according to claim 1 or 2, wherein: the positioning groove is of a V shape inclined up and down.

4. A support post locking device according to claim 1 or 2, wherein: the number of the positioning grooves is three.

5. A support post locking device according to claim 3, wherein: the number of the positioning grooves is three.