CN2486766Y

CN2486766Y - A screw and nut

Info

Publication number: CN2486766Y
Application number: CN 01204767
Authority: CN
Inventors: 陈纪如菁; 叶立心
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-03-15
Filing date: 2001-03-15
Publication date: 2002-04-17
Anticipated expiration: 2011-03-15

Abstract

The utility model provides a screw and a nut. A screw part and a limited part are arranged at an optimum place of a peripheral region of the screw or the bolt and a separation angle is formed between the limited part and the screw part. The optimum place of the peripheral region is provided with the screw part and the limited part along an axial direction and a separation angle is formed between the screw part and the limited part. A first end of the screw part is connected with the screw in arcs. A dichotomy shape is formed from bottom to top between the first end and a second end on the screw part. The limited part of the second end of the screw part is kinked upside to form a stop catch. After the screw is screwed inside timbers, the screw can not reverse and quit, which can provide a better security and a relatively longer service life.

Description

A kind of screw and nut

The utility model relates to a kind of hardware, particularly a kind of screw and nut of getting loose of can effectively preventing.

Raising with the flourish and GNP gross national product of showing high-tech industry, to be a society that life is more rich future, yet we can be found to everywhere, the required quality of the life of people improves relatively, to the requirement of things also from can be with all right old thinking, become quite fine and smooth, make furniture manufacturer must improve the quality and the working life of its product, to meet Consumer's requirement, the general mood that presents modern assembled furniture again is grown up gradually, its characteristics are cheaply, ease of assembly can be enjoyed do-it-yourself enjoyment again, makes Consumer case goods capable of automatic assembling.

Yet known WOOD SCREWS 1, see also shown in Figure 1, its body body periphery appropriate location in screw body 2 is provided with several oblique screw threads 3, and after known WOOD SCREWS 1 is screwed in the timber, since the screw thread 3 of its screw body 2 be smooth ramp to design, this known WOOD SCREWS 1 is very easily because of turn or stressed etc. former thereby WOOD SCREWS 1 is withdrawed from timber along the path that originally was screwed into, and loses the spacing function that locks, the defective of this known WOOD SCREWS is researched and developed improved necessity really.

The purpose of this utility model provides a kind of screw and nut, it utilizes the limited part of screw section second end upwards to bend and forms a backstop, and screw section first end is to second end formation one lunate shape from low to high, make screw after being screwed into timber, just can't reverse only to withdraw from that but up time is screwed in timber, just can't withdraw from after making screw of the present utility model in a single day be screwed in the timber, do not have known WOOD SCREWS gradually to withdraw from fully and the situation in timber of getting loose, can obtain preferable Security and long working life.

For achieving the above object, the utility model is a kind of screw and nut, and suitable place is provided with screw section and limited part in the outer periphery of screw or nut, and forms an angle between this limited part and screw section.

The suitable place of the outer periphery of screw or nut is axially arranged with screw section and limited part.

This screw section links to each other with limited part system and forms an angle.

This screw section does not link to each other with limited part and forms an angle.

This screw or nut have first end and second end, and first end makes screw have a tapering to the second end convergent.

The inner edge centre of first end is concaved with one can supply the containing space of hexagon wrench plant switching, and is concaved with a screw in the inner edge centre of second end, and this screw just can be connected with containing space.

Convex with a top-holding part at first end, it unlikelyly excessively is screwed in the timber.

Being provided with at an end of screw or nut can be for the groove of screwdriver plant switching.

This two ends formation one of this screw section cambered surface from low to high.

The two ends of this screw section are intersected and are formed an angle.

Characteristics of the present utility model and advantage are as follows:

Screw of the present utility model and nut, it utilizes the limited part of screw section second end upwards to bend and forms a backstop, and first end of screw section is to second end formation one lunate shape from low to high, make screw after being screwed into timber, just can't reverse only to withdraw from that but up time is screwed in timber, just can't withdraw from after making screw of the present utility model in a single day be screwed in the timber, there is not known WOOD SCREWS gradually to withdraw from fully and the situation in timber of getting loose, can obtain preferable Security and long working life, and simple in structure, effect is remarkable.

Description of drawings is as follows:

Fig. 1 is the stereo appearance figure of known WOOD SCREWS;

Fig. 2 is a stereo appearance figure of the present utility model;

Fig. 3 is a structure worm's eye view of the present utility model;

Fig. 4 is screwed into generalized section in the timber for the utility model;

Fig. 5 is a cross-section structure enlarged view of the present utility model;

Fig. 6 is actual user mode figure of the present utility model;

Fig. 7 is second embodiment's schematic representation of the present utility model;

Fig. 8 is the 3rd an embodiment's of the present utility model stereo appearance figure;

Fig. 9 is forced into view for the 3rd embodiment of the present utility model;

Figure 10 is the generalized section of the 3rd embodiment of the present utility model in timber;

Figure 11 is the 3rd embodiment's cross-section structure enlarged view of the present utility model;

Figure 12 is the 4th an embodiment's of the present utility model stereo appearance figure.

The technology that relevant the utility model adopted, means and effect thereof, lift a most preferred embodiment now and cooperate diagram to describe in detail as the back:

See also Fig. 2 to Figure 12; person shown in the figure is the selected a kind of embodiment's of the utility model a structure; screw of the present utility model and nut can be made by multiple unlike material; it can be used on the material of multiple different hardness; this embodiment is used on the timber for the alloy product collocation and only for the usefulness of explanation, is not subjected to the restriction of this kind structure on scope of patent protection.

The utility model is for a kind of screw and nut, sees also shown in Figure 2ly, and it includes:

One screw 10, it has first end 11 and second end 12, first end 11 makes screw 10 have a tapering to second end, 12 convergents, can be and be concaved with one for the containing space 13 of hexagon wrench plant switching in the inner edge centre of first end 11, the inner edge centre of second end 12 is concaved with a screw 16, this screw 16 just can be connected with containing space 13, and be provided with several oblique screw sections 14 in the suitable place of periphery of screw 10 spiral spacer, this screw section 14 has first end 141 and

second end

142,14 second end 142 is provided with a limited part 15 that upwards bends and in the screw section, and 4 of this limited part 15 and screw sections form an angle, see also shown in Figure 3, and be connected on the screw 10 in first end, 141 arcs of screw section 14, make screw section 14 form from low to high a lunate shape to second end 142 by first end 141.

See also shown in Fig. 4,5, it is screwed into the interior generalized section of timber for screw 10 of the present utility model, at this moment, screw 10 of the present utility model utilizes the limited part 15 of its screw section 14 second ends 142 upwards to bend and forms a backstop, and first end 141 of screw section 14 is to second end, 142 formation one lunate shape from low to high, make screw 10 to reverse only to withdraw from that but up time is screwed in timber, just can't withdraw from after making screw 10 of the present utility model in a single day be screwed in the timber, not have known WOOD SCREWS 1 gradually to withdraw from fully and the situation in timber of getting loose.

See also shown in Figure 6, it is the actual user mode figure of the utility model, can earlier screw 10 of the present utility model be screwed in the timber, utilize a bolt 20 to pass in the containing

space

13,16 of screw 10 again, arrange in pairs or groups two mutual spiral shells of timber of combination of need are solid, and screw 10 of the present utility model utilizes limited part 15, and upwards bending and first end 141 that forms backstop and screw section 14 form from low to high a lunate shape to second end 142, make screw 10 can't reverse fully and withdraw from timber that making between the solid timber of two spiral shells fully, possibility does not get loose.

See also shown in Figure 7, it is another embodiment of the present utility model, it mainly is first embodiment to be changed to be located to have can supply on the round head screw of screwdriver plant switching groove 17, make screw 10 of the present utility model have the directly function of the solid timber of spiral shell, and this second embodiment can reach above-mentioned first embodiment's effect equally.

See also shown in Figure 8, it is the 3rd embodiment of the present utility model, it mainly is that screw section 14 with original spiral spacer setting among first embodiment changes the suitable place of the periphery that is axially set in screw 10 into, see also shown in Figure 9, the screw 10 of present embodiment can utilize knocking of hammer and it is forced in the timber, see also Figure 10, shown in 11, for the screw 10 of present embodiment is forced into generalized section in the timber, and it utilizes the limited part 15 of screw section 14 second ends 142 upwards to bend and form a backstop, and first end 141 of screw section 14 is to second end, 142 formation one lunate shape from low to high, make screw 10 can't withdraw from timber, the screw 10 of present embodiment can't be withdrawed from after compeling to be screwed in the timber, do not have known art screw 1 gradually to withdraw from fully and the situation in timber of getting loose.

See also shown in Figure 12, it is the 4th embodiment of the present utility model, it mainly is to change the limited part 15 that 14 second ends 142 of screw section among first embodiment upwards bend into independent setting, to make 15 of screw section 14 and limited parts be not to link to each other and be to form an angle between the two, and this 4th embodiment can reach above-mentioned first embodiment's effect equally.

Claims

1, a kind of screw and nut is characterized in that: suitable place is provided with screw section and limited part in the outer periphery of screw or nut, and forms an angle between this limited part and screw section.

2, screw as claimed in claim 1 and nut is characterized in that: wherein the suitable place of the outer periphery of screw or nut is axially arranged with screw section and limited part.

3, screw as claimed in claim 1 or 2 and nut is characterized in that: wherein this screw section links to each other with limited part system and forms an angle.

4, screw as claimed in claim 1 or 2 and nut is characterized in that: wherein this screw section does not link to each other with limited part and forms an angle.

5, screw as claimed in claim 1 and nut is characterized in that: wherein this screw or nut have first end and second end, and first end makes screw have a tapering to the second end convergent.

6, screw as claimed in claim 5 and nut, it is characterized in that: wherein the inner edge centre of first end is concaved with one and can supplies the containing space of hexagon wrench plant switching, and the inner edge centre in second end is concaved with a screw, and this screw just can be connected with containing space.

7, screw as claimed in claim 5 and nut is characterized in that: wherein convex with a top-holding part at first end, it unlikelyly excessively is screwed in the timber.

8, screw as claimed in claim 5 and nut is characterized in that: wherein being provided with at an end of screw or nut can be for the groove of screwdriver plant switching.

9, screw as claimed in claim 5 and nut is characterized in that: wherein this two ends, this screw section form from low to high a cambered surface.

10, screw as claimed in claim 1 or 2 and nut is characterized in that: wherein the two ends of this screw section are intersected and are formed an angle.