Supporting ladder positioning and locking device

Abstract

The utility model discloses a supporting ladder positioning and locking device which comprises a stand column, the left side and the right side of the stand column are provided with plane ends, the surfaces of the plane ends are rotationally connected with connecting pieces in a sleeved mode through connecting bolts, the surfaces of the connecting pieces are fixedly connected with connecting plates in a sleeved mode, and the top of the stand column is provided with an inclined end. The surface of the connecting plate is symmetrically sleeved with locking bolts in a threaded mode, and one end of each locking bolt is rotationally sleeved with a clamping block. According to the supporting ladder positioning and locking device, the stand column rotates, the connecting plate moves along with the inclined end till the connecting plate abuts against the front face of the top of the stand column, in this way, the connecting plate and the stand column can abut against each other, the phenomenon of rotation cannot occur any more when the supporting ladder is used, and the effect of stable positioning is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of supporting ladder connecting pieces, in particular to a supporting ladder positioning and locking device. Background Art

[0002] In order to facilitate travel, existing station wagons are equipped with a folding luggage rack on the roof to facilitate the placement of items. When taking or placing items, the folding luggage rack is opened, and then the support ladder is connected to the luggage rack through a locking member, so as to facilitate the taking or placing of items. However, although the currently used locking member can connect the luggage rack and the support ladder, the support ladder can be adjusted because the locking member can be rotated, but it cannot be positioned after adjustment. Therefore, the support ladder is prone to rotate again when going up or down, resulting in instability. Utility Model Content

[0003] In response to the shortcomings of the existing technology, the utility model provides a support ladder positioning and locking device, which solves the problem that although the currently used locking piece can connect the luggage rack and the support ladder, the locking piece can be rotated and the support ladder can be adjusted, but it cannot be positioned after adjustment. Therefore, it is easy to rotate again when going up and down the support ladder, resulting in instability.

[0004] To achieve the above purpose, the utility model is implemented through the following technical solutions: a support ladder positioning and locking device, including a column, wherein the column is provided with a flat end on the left and right sides, and the surface of the flat end is rotatably sleeved with a connecting piece through a connecting bolt, and the surface of the connecting piece is fixedly sleeved with a connecting plate, the top of the column is provided with an inclined end, and the surface of the connecting plate is symmetrically threaded with a locking bolt, and one end of the locking bolt is rotatably sleeved with a blocking block.

[0005] Preferably, the angle of the inclined end is 15-65°.

[0006] Preferably, the upper and lower ends of the pillars have different diameters.

[0007] Preferably, a sleeve is symmetrically fixedly installed on the lower end of the column.

[0008] Preferably, the block is in the shape of an arc rectangle.

[0009] Preferably, the bottom of the connecting plate and the top of the column abut against each other.

[0010] The utility model provides a positioning and locking device for a support ladder. Compared with the prior art, it has the following beneficial effects:

[0011] The support ladder positioning and locking device is a device in which the column will rotate through the connecting bolts, first causing the connecting plate to move along with the inclined end until the connecting plate rests against the front face of the column top, so that the connecting plate and the column can be rested against each other, thereby preventing the support ladder from rotating when in use, and achieving a stable positioning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the rotation structure of the utility model;

[0014] Figure 3 It is a front view of the structure of the utility model.

[0015] In the figure: 1, column; 2, flat end; 3, sleeve; 4, connecting bolt; 5, connecting piece; 6, inclined end; 7, locking bolt; 8, clamping block; 9, connecting plate. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] See also Figure 1-3 The utility model provides a technical solution: a supporting ladder positioning and locking device, comprising a column 1, a flat end 2 is opened on the left and right sides of the column 1, and the surface of the flat end 2 is rotatably sleeved with a connecting piece 5 through a connecting bolt 4, and the surface of the connecting piece 5 is fixedly sleeved with a connecting plate 9, and the top of the column 1 is provided with an inclined end 6, the angle of the inclined end 6 is 15-65 degrees, and the surface of the connecting plate 9 is symmetrically threaded with a locking bolt 7, and one end of the locking bolt 7 is rotatably sleeved with a clamping block 8, which is an arc-shaped rectangle, wherein the clamping block 8 is inserted into the inner cavity of the folding luggage rack, and is rotated to be clamped between the strip grooves of the luggage rack with the clamping block 8.

[0018] The upper and lower ends of the column 1 have different diameters, and the lower end of the column 1 is inserted into the top of the support ladder.

[0019] The lower end of the column 1 is symmetrically fixed with a sleeve 3, and a pin is inserted between the sleeve 3 and the top of the support ladder to connect them.

[0020] The bottom of the connecting plate 9 abuts against the top of the column 1, wherein the inclined end 6 occupies one eighth of the top of the column 1, so the edge close to the column 1 is still the front. Figure 2 .

[0021] When in use, first insert the block 8 into the strip groove in the luggage rack, and then rotate the block 8 from horizontal to vertical, so that the block 8 is stuck in the strip groove, and then rotate the locking bolt 7 to drive the connecting plate 9 to move upward, so that the connecting plate 9 is against the luggage rack to complete the tightening, and then insert the lower ends of the two columns 1 into the two ends of the top of the supporting ladder, and then align the sleeve 3 with the holes opened at both ends of the top of the supporting ladder, and then insert the pin into the sleeve 3 and the hole to complete the connection, and then place the supporting ladder on the ground at an angle. At the same time, the column 1 will rotate through the connecting bolt 4, and first make the connecting plate 9 move with the inclined end 6 until the connecting plate 9 is against the front of the top of the column 1, so that the connecting plate 9 and the column 1 can be against each other, so that the supporting ladder will no longer rotate when used, and the positioning stability effect is achieved.

[0022] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning and locking device for a support ladder, comprising a column (1), characterized in that: The column (1) is provided with a plane end (2) on both sides, and the surface of the plane end (2) is rotatably sleeved with a connecting piece (5) through a connecting bolt (4), and the surface of the connecting piece (5) is fixedly sleeved with a connecting plate (9), and the top of the column (1) is provided with an inclined end (6), and the surface of the connecting plate (9) is symmetrically threadedly sleeved with a locking bolt (7), and one end of the locking bolt (7) is rotatably sleeved with a clamping block (8).

2. A support ladder positioning and locking device according to claim 1, characterized in that: The angle of the inclined end (6) is 15-65°.

3. The positioning and locking device for a support ladder according to claim 1, characterized in that: The upper and lower ends of the column (1) have different diameters.

4. The positioning and locking device for a support ladder according to claim 1, characterized in that: A sleeve (3) is symmetrically fixedly mounted on the lower end of the column (1).

5. The positioning and locking device for a support ladder according to claim 1, characterized in that: The clamping block (8) is in the shape of an arc rectangle.

6. The positioning and locking device for a support ladder according to claim 1, characterized in that: The bottom of the connecting plate (9) and the top of the column (1) abut against each other.

Images