CN2583263Y

CN2583263Y - Base seat fastening

Info

Publication number: CN2583263Y
Application number: CN 02285167
Authority: CN
Inventors: 倪树华
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-11-11
Filing date: 2002-11-11
Publication date: 2003-10-29
Anticipated expiration: 2012-11-11

Abstract

The utility model relates to a base fastener, which comprises a chassis and a central ironware, wherein, the part between a central axial line of the central ironware and the chassis forms a proper tilting including angle. As long as the tilting including angle between the central ironware of the base fastener and the chassis is comparatively proper, scissors supporting rod members which are used on scaffolds are totally sheathed on the central ironware conveniently and are fixed firmly. Slant angles of the scissors supporting rod members are from 45 DEG to 60 DEG. The utility model has reasonable structure and convenient use and has important promotion function for standardization, normalization and stability for building the scaffold for the future.

Description

Base seat fastening

Technical field

The utility model relates to a kind of building buckle, particularly relates to a kind of Base seat fastening.

Background technology

At present the building buckle that generally uses of job site has four kinds, comprises right-angle coupler, rotary buckle, to clasp and Base seat fastening, and they are made by cast iron materials.Base seat fastening is a kind of building buckle that is used to accept the pole steel tube load wherein, common Base seat fastening has structure and shape as shown in Figure 1, comprise chassis 1 and center ironware 2, wherein the diameter on chassis 1 is about 140mmm, the cross section of center ironware 2 is cross, length is generally about 90mm, and it is upright in the center on chassis 1.In use, chassis 1 is installed to bottom surface or other suitable location by installing hole 3 and the securing member that is provided with on it, pole steel tube then vertical sleeve on this center ironware 2, this moment, this pole steel tube was just realized accurate and firm location by Base seat fastening, wore the load that comes from the vertical rod steel pipe and was also born by Base seat fastening.

The weak point of this right angle Base seat fastening is, it can only be used on the pole steel tube of vertically putting, and just There is no help for for the bridging rod member of inclination certain angle.At present when setting up scaffold, because never be the special Base seat fastening of this bridging rod member design, most of scissors strut directly tiltedly is put on the backing plate, because the lifting surface area between strut and the backing plate is little, poor stability, the scaffold of setting up so just is difficult to satisfy the requirement of safe construction.

The utility model content

In order to overcome the deficiencies in the prior art, the utility model provides a kind of Base seat fastening, will be set to slanted angle between center ironware and the chassis, thereby increases the lifting surface area between bridging rod member bottom and the Base seat fastening, improves its position stability.

Solution of the present utility model is: a kind of Base seat fastening comprises chassis and center ironware, wherein: the slanted angle that is set to suit between the central axis of described center ironware and the chassis.

As long as the center ironware of above-mentioned Base seat fastening and the slanted angle between the chassis are provided with properly, at all that angle of slope of using on the scaffold be 45 spend can overlap easily to the bridging rod members of 60 degree realize on the heart ironware therein firm fixing.The utility model reasonable in design, easy to use, it will be to standardization, standardization and the stability of scaffold building play important facilitation from now on.

Description of drawings

Fig. 1 is the perspective view of prior art;

Fig. 2 is the perspective view of the utility model Base seat fastening;

Fig. 3 is the elevation of the utility model Base seat fastening.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is described in further detail.

See also accompanying drawing 2, Base seat fastening of the present utility model comprises chassis 10, center ironware 20, and the central axis of wherein said center ironware 20 and the angle between the chassis 10 are 45 degree～60 degree.In order to make this oblique angle Base seat fastening obtain the maximum scope of application, when design, generally get the median of 45 degree～60 degree, contacting and stressed problem between the oblique angle Base seat fastening in 50 degree just, the steel pipe bottom that promptly can comparatively properly solve the bridging rod member and the utility model.

In the utility model, the cross sectional shape of described center ironware 20 is changed into by original cross has certain thickness triangle star, its triangle is evenly to distribute, wherein one jiao central point is positioned at central axis by this center ironware 20 on the formed plane of 10 upright projections, chassis, the oblique rear of other two angles symmetry is extended, and forms than large space between two jiaos at oblique rear.Like this, when scissors strut angle was spent greater than 50, the rear portion can move down easily at the bottom of the steel pipe, and when spending less than 50 as scissors strut angle, the rear portion can also move up at the bottom of the steel pipe.So as long as adjust slightly, center ironware 20 just goes for all and is in the 45 scissors struts of spending between～60 degree.

As shown in Figure 1:, the reinforcing rib of certain altitude can also be set at the intersection on ironware 20 bottoms, described center and chassis 1, along the cross sectional shape of this center ironware 20 in order to add the bonding strength on strong center ironware 20 and chassis 1.

The length of the center ironware 20 of this Base seat fastening has compared with prior art reduced 10mm, the purpose of doing like this, be that steel pipe socket at the bridging rod member is on center ironware 20 time, angle adjustment is got up more flexible, even the steel pipe angle changes, do not influence the stress surface between steel pipe bottom and the base yet.

As can be seen from Figure 3, the centre-height on described chassis 10 is a little more than brim height, and its bottom surface then is a spherical concave surface, also is symmetrically arranged with two installing holes 30 in the neighboring on this chassis 10.

Claims

1, a kind of Base seat fastening comprises chassis (10), center ironware (20), it is characterized in that: the slanted angle that is set to suit between the central axis of described center ironware (20) and chassis (10).

2, Base seat fastening according to claim 1 is characterized in that: the slanted angle between the central axis of described center ironware (20) and chassis (10) is 45 degree～60 degree.

3, Base seat fastening according to claim 2 is characterized in that: the slanted angle between the central axis of described center ironware (20) and chassis (10) is 50 degree.

4, according to claim 1 or 2 or 3 described Base seat fastenings, it is characterized in that: the cross sectional shape of described center ironware (20) is for having certain thickness triangle star, its triangle is evenly to distribute, wherein one jiao central point is positioned at central axis by this center ironware (20) on the formed plane of upright projection, chassis (10), and the oblique rear of other two angles symmetry is extended.

5, Base seat fastening according to claim 4 is characterized in that: the diameter of described chassis (1) is about 140mmm, and center ironware (20) is being 80mm along the length on its central axial direction.

6, Base seat fastening according to claim 4 is characterized in that: at the intersection on described center ironware (20) bottom and chassis (1), also be provided with highly suitable reinforcing rib along the cross sectional shape of this center ironware (20).

7, Base seat fastening according to claim 4 is characterized in that: the centre-height of described chassis (10) is a little more than brim height, and its bottom surface then is a spherical concave surface, also is symmetrically arranged with two installing holes (30) in the neighboring of this chassis (10).

8, according to claim 1 or 2 or 3 described Base seat fastenings, it is characterized in that: the centre-height of described chassis (10) is a little more than brim height, its bottom surface then is a spherical concave surface, also is symmetrically arranged with two installing holes (30) in the neighboring of this chassis (10).