CN201582271U

CN201582271U - Cement anchoring nail with thickened tail end

Info

Publication number: CN201582271U
Application number: CN2010201034093U
Authority: CN
Inventors: 徐敏飞
Original assignee: Individual
Current assignee: Jiashan Yongda Screw Co Ltd
Priority date: 2010-01-22
Filing date: 2010-01-22
Publication date: 2010-09-15
Anticipated expiration: 2020-01-22

Abstract

The utility model discloses a cement anchoring nail with thickened tail end[,] which aims at providing a cement anchoring nail with thickened tail end with advantages of simple structure, reliable connection, uneasy loosening, easy manufacturing, and convenient use. The cement anchoring nail with thickened tail end includes a screw with a conical front end; a thread is arranged on the screw; the tail end of the screw is connected with a cylindrical head; a prism boss or pit used for rotating the screw is arranged on the cylindrical head; the screw is characterized in that the tail part of the screw approaching to the cylindrical head is provided with a thickened section bigger than the outer diameter of the screw. As the diameter of the thickened section approaching to the cylindrical head is bigger, which is just embedded and fixed with a bigger hole mouth, the cement anchoring nail with thickened tail end has the advantages of reliable connection and beautiful surface. The cement anchoring nail with thickened tail end can be broadly used to be connected with stators like cement, brick walls, etc.

Description

The cement anchor nail of tail end overstriking

Technical field

The utility model relates to a kind of screw that is used for fixing on cement components, relates in particular to the cement anchor nail of tail end overstriking.

Background technique

The finishing of many building industries often can be used self tapping screw, as the connection on member bodies such as cement product, brick wall, fabricated metals.During use, on fixed body, get out the hole of corresponding size earlier with electric drill (hammer), again self tapping screw is screwed in the hole, when boring (hammer) hole, owing to bore rocking of (hammer), often the size in aperture is than big in the hole, therefore, the quality of connection of aperture screw thread is often relatively poor, can not bring into play the effective length of whole screw, and also loosening easily.

Summary of the invention

The purpose of this utility model is to solve the shortcoming that exists in the existing product, provides a kind of cement anchor simple in structure, that connect reliable, difficult loosening, easy to manufacture, easy to use tail end overstriking to follow closely.

In order to reach above-mentioned requirements, the utility model is achieved in that it includes the conical screw rod of front end, be shaped on screw thread on the screw rod, the screw rod tail end is connected with socket cap, on socket cap, be shaped on prismatic boss or the pit used for rotary screw, it is characterized in that being provided with one section overstriking section greater than the screw rod external diameter at the screw rod tail of nearly socket cap.On described spiral shell overstriking section, be shaped on screw thread or straight burr.Between screw rod and overstriking section, be provided with pre-small post-large conical screw transition.Described prismatic boss is six prisms.Described pit is the pit of interior hex slot or the pit of plum blossom groove.Be shaped on locking tooth in the bottom surface of described socket cap.On the screw rod outer surface, be shaped on 2～3 leg-of-mutton cutting slots.

The cement anchor nail of the tail end overstriking of making according to such scheme, during use, on fixed body, get out the hole of corresponding size earlier with electric impact drill (hammer), again the cement anchor of tail end overstriking nail is placed in the hole, be screwed in the hole with the cement anchor nail of electric drill, utilize the screw thread on the screw rod that the cement anchor nail of tail end overstriking is connected with fixed body the tail end overstriking.Because the overstriking section diameter of nearly socket cap is bigger, just in time chimeric fixing with bigger aperture, have and connect advantage reliable, surface aesthetic.The cement anchor of this tail end overstriking nail can be widely used as and being connected of fixed bodies such as cement, brick wall.

Description of drawings

Fig. 1 is the cement anchor nail plan view that is shaped on six prismatic boss tail end overstrikings on the socket cap;

Fig. 2 is the cement anchor nail plan view that is shaped on the overstriking of pit tail end on the socket cap;

Fig. 3 is the plan view of hex slot pit;

Fig. 4 is the plan view in plum blossom geosynclinal concave hole;

Fig. 5 is the worm's eye view of Fig. 1;

Fig. 6 is that overstriking section is the cement anchor nail plan view of the tail end overstriking of polished rod.

Wherein: 1, screw rod; 2, screw thread; 3, socket cap; 4, six prismatic boss; 5, the pit of interior hex slot; 6, the pit of plum blossom groove; 7, locking tooth; 8, overstriking section; 9, conical screw; 10, cutting slot; 11, screw thread; 12, straight burr; 13, polished rod.

Embodiment

The present invention is further illustrated below in conjunction with drawings and Examples.

Fig. 1 is the cement anchor nail plan view that is shaped on the tail end overstriking of six prismatic boss on the socket cap.As seen from the figure, it includes the conical screw rod 1 of front end the cement anchor nail of tail end overstriking, be shaped on screw thread 2 on the screw rod 1, be connected with socket cap 3 at screw rod 2 tail ends, on socket cap 3, be shaped on the six prismatic boss 4 used for rotary screw as shown in Figure 1, or the pit 5 of interior hex slot as the pit 6 of Fig. 2, shown in Figure 3 or plum blossom groove as shown in Figure 4.Be shaped on locking tooth 7 as shown in Figure 5 in the bottom surface of described socket cap 3.And be provided with one section overstriking section 8 greater than screw rod 1 external diameter at screw rod 1 afterbody of nearly socket cap 1, between screw rod 1 and overstriking section 8, be provided with 9 transition of pre-small post-large conical screw.On the outer surface of screw rod 1, be shaped on 2～3 equally distributed triangle cutting slots 10.Can also on overstriking section 8, be shaped on screw thread 11 as shown in Figure 1 or straight burr 12 as shown in Figure 2, also can be polished rod 13 as shown in Figure 6.

Claims

1. the cement anchor of tail end overstriking is followed closely, it includes the conical screw rod of front end, be shaped on screw thread on the screw rod, the screw rod tail end is connected with socket cap, on socket cap, be shaped on prismatic boss or the pit used for rotary screw, it is characterized in that being provided with one section overstriking section greater than the screw rod external diameter at the screw rod tail of nearly socket cap.

2. the cement anchor nail of tail end overstriking according to claim 1 is characterized in that described prismatic boss is six prisms.

3. the cement anchor nail of tail end overstriking according to claim 1 is characterized in that described pit is the pit of interior hex slot or the pit of plum blossom groove.

4. the cement anchor nail of tail end overstriking according to claim 1 is characterized in that being shaped on locking tooth in the bottom surface of described socket cap.

5. the cement anchor nail of tail end overstriking according to claim 1 is characterized in that being shaped on screw thread or straight burr on overstriking section.

6. the cement anchor nail of tail end overstriking according to claim 1 is characterized in that being provided with pre-small post-large conical screw transition between screw rod and overstriking section.

7. the cement anchor nail of tail end overstriking according to claim 1 is characterized in that being shaped on leg-of-mutton cutting slot on the screw rod outer surface.

8. the cement anchor nail of tail end overstriking according to claim 7 is characterized in that described cutting slot has 2～3.