CN2408295Y

CN2408295Y - Floor screw

Info

Publication number: CN2408295Y
Application number: CN 00227454
Authority: CN
Inventors: 关伟伯
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-03-06
Filing date: 2000-03-06
Publication date: 2000-11-29
Anticipated expiration: 2010-03-06

Abstract

The utility model relates to a floor screw, which can be used for the support or the ground anchor of construction engineering. The floor screw comprises a pole rod, the head of which is provided with a rotary nail structure, and the end part of which is provided with a section of cone spiral taper thread, and an additionally matched rotary nail wrench. The floor screw can be manually or mechanically screw the floor screwed into earth surface to harder stratum, and thereby, the floor screw can play the role of support. When the construction engineering is completed, the floor screw can be screwed reversely. The floor screw can be screwed from the stratum, and can be used for using next time. If matching with a lifting bolt, the floor screw can be used as a ground anchor, such as a wind cable rope, the ground anchor of a hoister and the ground anchor of a test reverse force frame of pile foundation bearing capacity. The utility model has the advantages of convenient construction, wide applicability, high bearing capacity and low cost.

Description

A kind of Floor screw

The utility model relates to a kind of Floor screw, belongs to construction engineering technical field.

In construction engineering, often a large amount of supports that use, bracket supports is on ground, subsoil is hard-soft, the support that has can directly be supported on firm ground, all the other major parts are supported on the subsoil by the bracket supports device, the simplest bracket supports can be a backing plate wooden or made of iron, but if the too soft then backing plate of ground will could satisfy load bearing requirements very greatly, otherwise must carry out cure process to foundation surface, for example ramming rolls, shop sandstone etc., this just causes construction complicated, cost height, applicability are wideless, and owing to are difficult to guarantee the inhomogeneity defective of ground everywhere.

The purpose of this utility model just provides a kind of ability of holding height, easy construction, wide, the lower-cost Floor screw of applicability.

To achieve these goals, the utility model is taked following technical measures:

The utility model is a kind of Floor screw, it comprise head have the mast that revolves pin structure and its end screw thread, join in addition revolve the nail-plate hand; It is characterized in that: described screw thread is one section tapered thread.

The described pin structure that revolves is square toes or hexagon head, and revolving the nail-plate hand can also be the pipe wrench formula.

The described pin structure top of revolving is fluted, is equipped with the support bearing that adapts with it in addition.

On the basis of above-mentioned pattern, Floor screw of the present utility model also can be done further improvement: 1) set up equal pressure pad plate under described mast head: its be a perforate base plate, above a vertical cylindrical shell, cylindrical shell has stiffening rib and base plate to join outward; 2) described mast is set up the structure of plugging into for plugging on mast tapered thread section: it is that the rod end of plugging into is that the head of hollow cavity, another rod end of plugging into can inject hollow cavity, and two rod ends of plugging into all have horizontal pin-and-hole and inject pin.

Floor screw of the present utility model can be made the length and the Placement of various size, drilling rod and also can select as required to be spirally connected or to weld.

Taked after the above-mentioned technical measures, when establishing support, the size of load and geological condition as requested, select the Floor screw of appropriate section diameter and pitch for use, with artificial or machinery the nail-plate hand that revolves Floor screw is screwed in and is supported under the face of land until harder stratum with other outfit, compress equal pressure pad plate, and be equipped with and revolve the supporting that support bearing that pin structure square toes or hexagon head top groove adapt constitutes support bracket.So bracket supports easy construction, applicability be wide, it is also lower to hold ability height, cost.

Floor screw of the present utility model slightly makes improvements, and installs pulling force additional and constructs, can also be as using earth anchor very widely, and the screw of the permanent antirust processing of use process and stay cord or aluminium bar just can be used as permanent work.

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

Fig. 1 looks schematic representation for first kind of embodiment master of the utility model Floor screw;

Fig. 2 is the local enlarged diagram of Fig. 1;

Fig. 3 is the enlarged diagram of support bearing;

Fig. 4 is second kind of embodiment's of the utility model Floor screw a user mode schematic representation;

Fig. 5 for along the A of Fig. 4 to, show the local enlarged diagram that revolves nail-plate hand, square toes;

The plan view of Fig. 6 for analysing and observe along the B-B line of Fig. 4, show equal pressure pad plate;

Can see the fundamental form of the utility model Floor screw from Fig. 1: comprise that head has mast 2 and the screw thread 3 on it that revolves pin structure square toes 1, screw thread is the tapered thread of one section shape of mast end as the awl spiral; Fig. 2 is the local enlarged diagram that revolves pin structure square toes 1, will revolve the pin structure square toes and process internal thread, is equipped with support bearing 6 shown in Figure 3, can constitute the supporting of support bracket 5; If be equipped with lifting bolt, then can be used as and use earth anchor use very widely; Certainly, revolve pin structure and also can make other form, first-class as hexagonal.

Can see from Fig. 4, second kind of embodiment's of Floor screw of the present utility model user mode, it comprises that equally head has mast 2 and the screw thread 3 on it that revolves pin structure square toes 1, screw thread is the tapered thread of one section shape of mast end as the awl spiral; Join in addition again can be enclosed within to revolve and revolve nail-plate hand 4 on the pin structure square toes 1; Below square toes 1, be provided with equal pressure pad plate 7: its be a perforate base plate 8, above a vertical cylindrical shell 9, cylindrical shell has stiffening rib 10 and base plate 8 to join outward; Mast passes and is pressed on the cylindrical shell from base plate, cylindrical shell; From the broken section of Fig. 4, can see, Floor screw mast 2 of the present utility model is what can plug into, the structure of plugging into is that the head 12 that rod end has hollow cavity 11, another rod end of plugging into of plugging into matches and can inject with it, and two rod ends of plugging into all have horizontal pin-and-hole 13 and inject pin 14, also can set up backing plate 15 according to circumstances 7 times at equal pressure pad plates; Fig. 5 for along the A of Fig. 4 to, show the local enlarged diagram that revolves nail-plate hand, square toes; The plan view of Fig. 6 for analysing and observe along the B-B line of Fig. 4, show equal pressure pad plate.

When establishing support, the size of supporting force and geological condition as requested, select the Floor screw of appropriate section diameter and length for use, to revolve the nail-plate hand Floor screw is screwed in and is supported on part harder under the face of land with artificial or machinery, the equal pressure pad plate that to put more energy into then is bearing on the face of land, further Floor screw is screwed in some again and compresses equal pressure pad plate, makes stressed jointly up and down, make the Floor screw structure more stable, bearing capacity is higher; All the pressure pad plate both can make integrated type, also can be made into split type; And with revolve the support bearing that pin structure square toes top groove adapts, can play the bracket supports effect.After construction engineering completion, but counterrotating Floor screw again Floor screw is screwed out from ground, give over to and use next time, save cost.

Floor screw of the present utility model advances, process internal thread as revolving the pin structure square toes, be equipped with lifting bolt, just can be used as widely used earth anchor, for example the earth anchor of cable wind rope, winch, pile foundation are held and are planted power test reaction frame earth anchor, capstan winch of mixing earth anchor of equipment on automobile, when falling into car in the open air, promptly available its saved oneself.

Claims

1, a kind of Floor screw comprises that head has the screw thread of the mast that revolves pin structure and its end, and it is characterized in that: described screw thread is one section tapered thread.

2, according to the Floor screw of claim 1, it is characterized in that: the described pin structure that revolves is square toes.

3, according to the Floor screw of claim 1, it is characterized in that: the described pin structure top of revolving is fluted.

4, according to the Floor screw of claim 1, it is characterized in that: under described mast head, set up equal pressure pad plate: its be a perforate base plate, above a vertical cylindrical shell, cylindrical shell has stiffening rib and base plate to join outward.

5, according to the Floor screw of claim 1, it is characterized in that: described mast is provided with the structure of plugging into for what can plug on mast tapered thread section.

6, according to the Floor screw of claim 5, it is characterized in that: the described structure of plugging into is that the rod end of plugging into is that the head of hollow cavity, another rod end of plugging into can inject hollow cavity, and two rod ends of plugging into all have horizontal pin-and-hole and can inject the connection pin.