CN2358218Y

CN2358218Y - Movable ladder

Info

Publication number: CN2358218Y
Application number: CN 98226025
Authority: CN
Inventors: 盛阳宽
Original assignee: XIONGSHI ENAMEL CO WUXI CITY
Current assignee: XIONGSHI ENAMEL CO WUXI CITY
Priority date: 1998-02-18
Filing date: 1998-02-18
Publication date: 2000-01-12
Anticipated expiration: 2008-02-18

Abstract

The utility model relates to a stool, particularly a ladder stool with a universal wheel. The utility model has the main technical proposal that the utility model comprises an upper and a lower stool faces and supporting feet for connecting the upper and the lower stool faces; the lower end of the lower stool face is connected with a barrel-shaped stool foot, and the lower part of the stool foot is large and the upper part of the stool foot is small; the lower end of the stool foot is provided with a circle of bent which is bended outwards or inwards, and a ring-shaped antiskid ring is sheathed on the bent part. The utility model has the advantages of convenient operation, stabilization, reliability, etc.

Description

Portable step stool

The utility model relates to stool, specifically a kind of step stool that has universal wheel.

In the shop, occasion such as warehouse, library all needs to ascend a height and gets thing or get book.The used apparatus of ascending a height is that small-sized aluminium alloys is lacked ladder or stool etc. at present.Wherein, the former price comparison is expensive, is difficult for during use moving, and the latter has problems such as mobile inconvenience equally.

The purpose of this utility model is a kind of easy to use, simple and practical portable step stool of design.

Its main technical schemes relates to stool face and stool pin, stool face wherein is made of last stool face and following stool face, between upper and lower stool face, utilize 3 spikes evenly arranging to be coupled to each other, the big down little tubular stool pin of the following connection of following stool face, outside or the inside bending of one circle is arranged in the lower end of stool pin, and the antislip ring of annular is enclosed within this bending part, on upper and lower stool face anti-skidding rubber pad is arranged, utilize support to connect 3 universal wheels equably in the inboard of tubular stool pin, support be "

" shape; on it; porose on the lower surface; bearing pin is installed; wherein; between the hole of bearing pin and lower surface, axle sleeve is arranged in the hole, on the bearing pin, following two ends are connected with positioning retainer ring respectively, connecting on the bearing pin of following back-up ring and shaft room can be around the rolling wheel support of bearing pin rotation, outside the bearing pin of the upper surface of support and shaft room, be with stage clip, connect the roller that can rotate around the axis at the decurved end utilization axle of rolling wheel support, the side of support is fixedly connected at the inner surface of tubular stool pin, the lower edge of roller slightly stretches out the lower surface of antislip ring, anti-slip rubber on the last stool face is lined with uniform latticed projection, anti-slip rubber on following stool face is lined with the projection of a circle circle annular, on, following stool face be shaped as circle or oval or its angle is the equilateral polygon of arc transition, as equilateral triangle, quadrangle, pentagon etc., there is inside flanging the lower end of spike, affixed mat on flanging, there is a circle to extend upward the projection that forms at the edge of following stool face by annular stool pin, affixed equably 3 spring leafs below following stool face, two elasticity dish holes are arranged on each spring leaf, at following stool face, the flanging of spike and the corresponding site of mat are also porose, place round pin in the hole, the inner ring in dish hole is embedded in the groove of this round pin lower end, the ring segment on round pin top is pressed on the liner, on annular stool pin, the decorative pattern hole is arranged, the annular groove of being convenient to suck ground is arranged in the bottom surface of annular antislip ring.

The utility model has the advantages that therefore, conveniently moving has overcome problems such as original small-sized short ladder and the existing mobile inconvenience of stool owing to utilize special structure that universal wheel is installed in the bottom.Secondly, be provided with antislip ring in the bottom, when ascending a height, the universal wheel that has spring can shrink under the human body action of gravity, the rubber antiskid circle is all landed, and firmly hold ground, play anti-skidding effect, improved safety, when this step stool is bigger, on tubular stool pin, in order to save material, increase aesthetic feeling and when offering the decorative pattern hole, just rely on the annular groove of bigger rubber antiskid circle bottom surface to suck ground, prevent sliding stop with the frictional force between increase and ground.The 3rd, two-layer stool face utilizes spike simple in structure to be coupled to each other, and the stool pin of bottom adopts annular tube structure, be beneficial to and lower the center of gravity, improve stability, spike and following stool face connect employing round pin and dish-shaped pore structure, in conjunction with firm, reliably, easy for installation, the decorative pattern on the stool face also is beneficial to anti-skidding attractive in appearance with increase.

Fig. 1 is a structure chart of the present utility model.

Fig. 2 is the coupled situation figure of spike and following stool face.

Fig. 3 is the coupled situation figure of tubular stool pin and universal wheel mechanism and antislip ring.

As shown in the figure, the stool face is made of last stool face 1 and following stool face 3, and upper and lower stool face utilizes spike 2 to be coupled to each other, below stool face 3 down under the connection greatly on little tubular stool pin 4, there is outside bending 18 lower end of this stool pin 4, antislip ring 5 is enclosed within this bending 18.

The inner surface of tubular stool pin 4 connect equably 3 "

" type support 9; on support 9; lower surface 20; concentric hole is arranged respectively on 19; bearing pin 11 is installed in this hole; and axle sleeve 13 is installed between the hole of bearing pin 11 and lower surface 19, on the bearing pin, following two ends have back-up ring 10 respectively, 16, outside back-up ring 16 and bearing pin 11 that axle sleeve 13 is asked, connect the rolling wheel support 14 that can rotate around bearing pin, roller 15 utilizes rotating axle 17 to be connected in rolling wheel support 14 decurved ends, the back-up ring 10 of bearing pin upper end is positioned at above the upper surface 20, on the bearing pin between upper surface 20 and the axle sleeve 13, be with pressing spring 12, so that when not ascending a height, the extended antislip ring 5 of the roller in the universal wheel mechanism is convenient to move; When ascending a height, then upwards compression lands antislip ring.The side fastening of support 19 is at the inner surface of tubular stool pin.

There is inside flanging 21 lower end of spike 2, play the liner 7 and mutual fastening connection of flanging of humidification, at the fastening spring leaf 8 that has two elasticity dish holes 23 of the lower edge of following stool face, corresponding site at following stool face 3, flanging 21 and liner 7 also has same hole, so that spike and following stool face are tightened together with round pin, the groove of round pin 6 lower ends can embed the inner ring in elasticity dish hole 23, and the ring segment 25 of round pin upper end is being close on the liner 7 under the effect of spring leaf 8.On the anti-slip rubber pad on the upper and lower stool face 1,3, prismatic and annular protrusion are arranged respectively, flange 22 is arranged in the upper edge of descending stool face 3.

Claims

1, portable step stool, comprise stool face and stool pin, it is characterized in that the stool face is made of last stool face (1) and following stool face (3), 3 spikes (2) that utilization is evenly arranged between upper and lower stool face are coupled to each other, the big down little tubular stool pin (4) of the following connection of following stool face (3).

2, step stool according to claim 1 is characterized in that there is the outside or inside bending (18) of a circle lower end of stool pin (4), and the antislip ring (5) of annular is enclosed within this bending part.

3, step stool according to claim 1 is characterized in that on upper and lower stool face (1), (3) anti-skidding rubber pad being arranged.

4, step stool according to claim 1 is characterized in that utilizing support (9) to connect 3 universal wheels equably in the inboard of tubular stool pin (4).

5, according to claim 1,4 described step stools, it is characterized in that support (9) be "

" shape; on it; lower surface (20); (19) upward porose; bearing pin (11) is installed; wherein in the hole, between the hole of bearing pin (11) and lower surface (19), axle sleeve (13) is arranged, on the bearing pin (11), following two ends are connected with positioning retainer ring (10) respectively, (16), on the bearing pin (11) between following back-up ring (16) and axle sleeve (13), connect rotating rolling wheel support (14), outside the upper surface (20) of support (9) and the bearing pin (11) between axle sleeve (13), be with stage clip (12), utilize axle (17) to connect rotating roller (15) at the decurved end of rolling wheel support (14), the side of support (9) is fixedly connected at the inner surface of tubular stool pin (4), and the lower edge of roller (17) slightly stretches out the lower surface of antislip ring (5).

6, according to claim 1,3 described step stools, it is characterized in that the anti-slip rubber on the stool face (1) is lined with uniform latticed projection, the anti-slip rubber on following stool face (3) is lined with the projection of a circle circle annular.

7, step stool according to claim 1 is characterized in that, following stool face (1), (3) be shaped as circle or oval or its angle is the equilateral triangle of arc transition, equilateral quadrangle, equilateral pentagon and equilateral polygon.

8, step stool according to claim 1, it is characterized in that inside flanging (21) being arranged in the lower end of spike (2), affixed liner (7) on flanging, there is a circle to extend upward the flange (20) that forms at the edge of following stool face (3) by annular stool pin (4), affixed equably 3 spring leafs (8) below following stool face (3), two elasticity dish holes (23) are arranged on each spring leaf (8), at following stool face (3), the corresponding site of flanging (21) and liner (7) is also porose, place round pin (6) in the hole, the inner ring in dish hole (23) is embedded in the groove of this round pin (6) lower end, and the ring segment (25) on round pin (6) top is pressed on the liner (7).

9, step stool according to claim 1 is characterized in that in the bottom surface of annular antislip ring (5) annular groove of being convenient to suck ground being arranged.

10, step stool according to claim 1 is characterized in that on annular stool pin (4) the decorative pattern hole being arranged.