CN101586590B

CN101586590B - Screw locking device

Info

Publication number: CN101586590B
Application number: CN2008100976672A
Authority: CN
Inventors: 郑明忠
Original assignee: UNITED ORIENTAL OPTOELECTRONIC CO Ltd
Current assignee: UNITED ORIENTAL OPTOELECTRONIC CO Ltd
Priority date: 2008-05-22
Filing date: 2008-05-22
Publication date: 2011-11-09
Anticipated expiration: 2028-05-22
Also published as: CN101586590A

Abstract

The invention discloses a screw locking device which mainly comprises a pipe fitting, a pushing and supporting part and a screw, wherein the wall surface of the pipe fitting is provided with a location screw hole which is radially provided with at least one location slot; the pushing and supporting part is accommodated in the location screw hole, and a combination slot is arranged in the center ofthe pushing and supporting part in a concave way; the outer surface of the combination slot is provided with a location block matched with the location slot; a screw is combined with the pushing and supporting part and the location screw hole and provided with a body and a combination block; the body is provided with a screw end and an operation end; and the combination block is formed on the screw end of the body, which is different from the operation end, and can be rotationally sleeved and combined with the combination slot of the pushing and supporting part, therefore, the screw locking device which is firm in location and can lower the use cost is provided.

Description

Screw locking device

Technical field

The invention relates to a kind of screw locking device, refer to the screw lockup device that a kind of thing of avoiding being locked is damaged especially, it is under the jurisdiction of the technical field category of screw locking.

Background technique

Generally for the two mutual sheathed combinations and the pipe fitting 60 that can move mutually, 61 lock when locating, be that screw lockup device 70 by as shown in Figure 8 locks, existing screw lockup device 70 mainly is that the wall in outer tube member 61 is provided with a screw 71, and the outer surface of pipe fitting 60 in pressing on by a screw 72 that is screwed with screw 71, pipe fitting 60 is fixed on the outer tube member 61 through screw 72 in making;

Though existing screw lockup device 70 can see through the mode that screw 72 compresses interior pipe fitting 60, and with two

pipe fittings

60,61 set firmly combination mutually, yet, the long-term locking mode of using screw 72 to compress interior pipe fitting 60, the outer surface of pipe fitting 60 produces and damages in making easily, and after the outer surface of interior pipe fitting 60 produces damage, then screw 72 then easy pothole that is produced because of interior pipe fitting 60 outer surfaces when locking produces deflection, interior pipe fitting 60 firmly can't be positioned on the outer tube member 61, therefore pipe fitting 60 in often needing in use for some time to change increases the inconvenience of using relatively and increases required cost, and in addition improvements are arranged really.

Summary of the invention

Therefore, the disappearance and the deficiency of the present invention's pipe fitting because existing screw lockup device weares and teares easily, special process is test and research constantly, develops finally a kind of the present invention that can improve the disappearance of prior art.

The invention reside in provides a kind of screw locking device, and it is the situation that can significantly improve the pipe fitting wearing and tearing, provides a strong fix and the convenient screw locking device that uses but use.

Based on above-mentioned purpose, major technique means of the present invention are to provide a kind of screw locking device, and it is to include a pipe fitting, a push piece and a screw, wherein:

The wall of this pipe fitting is to be provided with a location screw, and wherein this positioning screw hole is radially to be provided with at least one locating slot;

Push piece is to be located in this positioning screw hole, and the center of this push piece is to be concaved with an engagement groove, is to be provided with the positioning block that is consistent with the positioning screw hole locating slot in the outer surface of engagement groove; And

Screw is to combine with push piece and positioning screw hole and be provided with a body and a binding block, wherein this body is to be provided with one to screw togather an end and an operating end, this outer surface that screws togather end is to be provided with an outside thread that is screwed with positioning screw hole, and binding block be form in body differ from the operating end screw togather that end is gone up and rotationally with the mutually sheathed combination of the engagement groove of push piece.

Preferably, this positioning screw hole is the locating slot that is provided with two correspondences, and push piece is to be provided with two positioning blocks that are consistent with locating slot.

Preferably, the outer surface of this operating end is to be provided with the indentation that several rotate for the user.

Preferably, this engagement groove is to be a tapered shape by bottom land towards opening.

Preferably, this push piece is made by a soft materials.

Preferably, this positioning block is to can be an arc or a square structure.

Preferably, this binding block is the structure that is spherical a, trapezoid shaped that is consistent with engagement groove or groove shape.

By above-mentioned technological means, screw locking device of the present invention has following advantage and effect at least:

One, strong fix: screw locking device of the present invention, mainly be with after the binding block of screw combines when using with push piece, mode by the rotation screw operating end, make push piece along with screw inwardly the pipe fitting direction move, and then in making pipe fitting see through compressing of push piece and with firmly fix with outer tube member, effectively avoid existing screw locking device, be that pipe fitting makes its outer surface produce damage in compressing through screw, and screw can't firmly be positioned interior pipe fitting the problem of outer tube member easily because of the pothole that interior outer surface of pipe fittings produced produces deflection.

Two, long service life: screw locking device of the present invention, mainly the mode of pipe fitting in compressing by push piece when using, pipe fitting sets firmly combination mutually with outer tube member in making, need to change the situation of interior pipe fitting after can avoiding existing screw locking device to use a period of time, and then a convenient screw locking device that uses and can reduce cost is provided.

Description of drawings

Fig. 1 is that the present invention is installed in the three-dimensional exploded view between two pipe fittings.

Fig. 2 is the part section plan view that the present invention is installed in two pipe fittings.

Fig. 3 is the partial cut away side views that the present invention is installed in two pipe fittings.

Fig. 4 is another embodiment's of a push piece of the present invention stereo appearance figure.

Fig. 5 is a push piece of the present invention embodiment a stereo appearance figure again.

Fig. 6 is another embodiment's of a screw of the present invention schematic side view.

Fig. 7 is a screw of the present invention embodiment a schematic side view again.

Fig. 8 is that existing screw lockup device is installed in the cross sectional side view between two pipe fittings.

[primary clustering symbol description]

10--positioning screw hole 11--locating slot

20--push piece 21--engagement groove

22,22A, 22B--positioning block

30--screw 31--body

311--screws togather end 312--operating end

313--outside thread 314--indentation

32,32A, 32B--binding block

Pipe fitting 50--outer tube member in the 40--

Pipe fitting 61--outer tube member in the 60--

70--screw lockup device

71--screw 72--screw

Embodiment

Be energy detail knowledge technical characteristics of the present invention and practical effect, and can implement according to the content of specification, now further with as the preferred embodiment shown in graphic, describe in detail as after, see also as shown in Figure 1 to Figure 3, screw locking device of the present invention, it is to be mounted between the two pipe fittings (wherein is that interior pipe fitting 40, is outer tube member 50) and to include one to locate screw 10, a push piece 20 and a screw 30, wherein:

This positioning screw hole 10 is to be located at the wall of this outer tube member 50 and relative with interior pipe fitting 40, and wherein this positioning screw hole 10 is radially to be provided with at least one locating slot 11, and preferably, this positioning screw hole 10 is the locating slots 11 that are provided with two correspondences as shown in Figure 1;

Push piece 20 is made by a soft materials, it is to be located in the above-mentioned positioning screw hole 10 and with interior pipe fitting 40 to recline mutually, the center of this push piece 20 is to be concaved with an engagement groove 21, preferably, this engagement groove 21 is to be a tapered shape by bottom land towards opening, push piece 20 is as 1,4 and shown in Figure 5 in addition, outer surface in engagement groove 21 is to be provided with the positioning block 22 that is consistent with positioning screw hole 10 locating

slots

11,22A, 22B, preferably, this

positioning block

22,22A, 22B can be an arc or a square structure; And

Screw 30 is to combine with push piece 20 and positioning screw hole 10 and be provided with a body 31 and a binding block 32, wherein this body 31 is to be provided with one to screw togather end 311 and one operating end 312, this screws togather end outer surface of 311 is to be provided with an outside thread 313 that is screwed with positioning screw hole 10, preferably, the outer surface of this operating end 312 is to be provided with the indentation 314 that several rotate for the user, and binding block 32 be form in body 31 differ from operating end 312 screw togather on the end 311 and rotationally with the engagement groove 21 mutually sheathed combinations of push piece 20, preferably, this binding

block

32,32A, 32B are as Fig. 1,6 and shown in Figure 7 be one be consistent with engagement groove 21 spherical, trapezoid shaped or groove shape structure.

The present invention is as shown in Figures 2 and 3 when using, it mainly is with the binding block 32 of push piece 20 with

screw

30,32A, after 32B combines, positioning block 22 with

push piece

20,22A, 22B is with after the locating slot 11 of positioning screw hole 10 aligns mutually, by the mode of rotation screw 30 operating ends 312, the end 21 that screws togather of body 31 is screwed with positioning screw hole 10, at this moment, since the positioning block 22 of

push piece

20,22A, 22B is that the locating slot 11 with positioning screw hole 10 fastens, therefore, push piece 20 not can along with screw 30 rotate and only can along with screw 30 inwardly pipe fitting 40 directions move, pipe fitting 40 fixes with outer tube member 50 by compressing of push piece 20 in making.

The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, the technician who has common knowledge in the technical field under any, if in the scope that does not break away from technological scheme that the present invention puies forward, utilize disclosed technology contents to do the local equivalent embodiment who changes or modify, and do not break away from technological scheme content of the present invention, all still belong in the scope of technical solution of the present invention.

Claims

1. a screw locking device is characterized in that, it is to include a pipe fitting, a push piece and a screw, wherein:

2. screw locking device as claimed in claim 1 is characterized in that wherein this positioning screw hole is the locating slot that is provided with two correspondences, and push piece is to be provided with two positioning blocks that are consistent with locating slot.

3. screw locking device as claimed in claim 1 or 2 is characterized in that, wherein the outer surface of this operating end is to be provided with the indentation that several rotate for the user.

4. screw locking device as claimed in claim 3 is characterized in that, wherein this engagement groove is to be a tapered shape by bottom land towards opening.

5. screw locking device as claimed in claim 4 is characterized in that, wherein this push piece is made by a soft materials.

6. screw locking device as claimed in claim 5 is characterized in that, wherein this positioning block is to be an arcuate structure.

7. screw locking device as claimed in claim 5 is characterized in that, wherein this positioning block is to be a square structure.

8. screw locking device as claimed in claim 5 is characterized in that, wherein this binding block is to be a spheroidal structure that is consistent with engagement groove.

9. screw locking device as claimed in claim 5 is characterized in that, wherein this binding block is to be a trapezoid shaped structure that is consistent with engagement groove.

10. screw locking device as claimed in claim 4 is characterized in that, wherein this binding block is to be a groove shape structure that is consistent with engagement groove.