CN2286222Y

CN2286222Y - Antidrawing and antibeating structure for pin of locking bolt

Info

Publication number: CN2286222Y
Application number: CN 96230407
Authority: CN
Inventors: 黄川隆
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-08-01
Filing date: 1996-08-01
Publication date: 1998-07-15
Anticipated expiration: 2006-08-01

Abstract

The utility model relates to an anti-drawing and anti-beating structure for a clamping pin of a lock cylinder, belonging to the pin class. The groove position of the clamping pin of the side of the top end of the lock cylinder is provided with a slant surface; a drive block of the top end of the lock cylinder is caused to be positioned between the grooves of the two clamping pins, wherein, the middle of the drive block is milled with a groove whose inner side presents the slant contact and the point contact with the side edge of the clamping block of the clamping pin, and slickly avoids the mutual interference between the inner side of the groove and the clamping block. While in locking, due to the fact that the two clamping pin makes the relative containment, however, has no space to be expanded and contracted, the locking function is sufficiently reached; the end of he clamping pin is provided with a slant surface hook shape so that reaching the anti-theft function can be ensured, and the utility model has a structure block with simple processing.

Description

The core bayonet lock is prevented pulling out, strike-proof structure

The utility model is that a kind of core bayonet lock is prevented pulling out, strike-proof structure, belongs to the pin class.

Quite various by present core kind, no matter right locking of which kind of core always has its pluses and minuses, wherein have a kind of by a left side, the structure (as Fig. 1) of right two bayonet lock A institutes fastening, its groove A1 place that mainly is bayonet lock A is embedded for the drive piece B1 of core B, when core A undoes the lock, it drives piece B1 and then retreats because of rotation makes bayonet lock A produce, can make the locking bar on limit, two ends extract, in addition when locking, though two bayonet lock A are opened and fastening outward by spring A2 all, he can force bayonet lock inwardly to contract and can take out locking bar with firmly being pressed into by break joint place, bar hole with a hard sheet at human desires, or hale locking bar and knock lock body with weight, locking bar is separated with lock body.

Now this is especially exemplified by going out two examples comparing now, and is as follows:

First example: have a kind of by about two bayonet lock A fixed structure (Fig1), its groove A1 place that mainly is bayonet lock A is embedded for the drive piece B1 of core B, when core A undoes the lock, it drives piece B1 and then retreats because of rotation makes bayonet lock A produce, can make the locking bar on limit, two ends extract, in addition when locking, though two bayonet lock A are opened and fastening outward by spring A2 all, but his human desires can be with firmly being pressed into by break joint place, bar hole with a hard sheet, force bayonet lock inwardly to contract and to take out locking bar, or hale locking bar and knock lock body with weight, locking bar is separated with lock body.

Second example: now because of above-mentioned disappearance, once there was the creator then to supervise in bayonet lock A after overhanging, leave the space between the drive piece of its core and groove A1, therefore promptly driving the riveting of piece place has a pin surely, with between the space that drives between piece and groove A1, prevent that bayonet lock from inwardly contracted by extraneous the generation in order to hard sheet, prevents stealing though this kind mode can reach when firmly being pressed into, but after the making and its use for this alignment pin, all be easy to generate disappearance;

One, this alignment pin mainly is the drive piece place of being fixed in core, therefore is to add man-hour, must drive the punching of piece place separately, again alignment pin is forced firmly and be fixed in this hole, so when processing and fabricating, must many two road formalities process, not only be more loss on the manpower, delay productivity ratio especially.

Two, since alignment pin system force firmly in the hole that drives piece, therefore when rotarily opening for a long time, the power of often being rotated, alignment pin is promoted gradually and pine from, even and come off.

Three, this alignment pin mainly is between between drive piece and groove, and so when core was unblanked, it drove piece and leaves groove as if rotating fully, also is and can inwardly not contract to bayonet lock generation backstop, hinders the purpose that locking bar takes out more.

Now because of the disappearance of first, second example, the purpose of this utility model is: propose a kind of more accurately and be easier to the structure of processing and manufacturing, make to drive piece and can pin down the core bayonet lock, prevent that lockset from meeting with gravity and applying, promptly take place locking bar and the bayonet lock situation of escape each other; And can reduce cost and man-hour; And then the core bayonet lock that increases its productivity ratio is prevented pulling out, strike-proof structure.

For achieving the above object, the utility model is achieved in that

The utility model is that a kind of core bayonet lock is prevented pulling out, strike-proof structure, comprise that the drive piece of core peaks at the groove of two bayonet locks, utilize the drive piece that adds the milling groove on core top to become 3 points (face) to contact with the groove and the clipping block of bayonet lock, and do relative containing, make two bayonet locks not have clearance to stretch, phase pulls out to reach anti-, anti-function of striking, and then drives piece and clipping block does not interfere with each other because of the groove that drives piece makes in addition, and stuck anxiety is arranged.Be provided with barb-like inclined-plane at the bayonet lock end, can cooperate, and leave clearance and make that bayonet lock is flexible not to be hindered, and the bayonet lock end is provided with barb-like inclined-plane, also can place end separately with the clip inclined-plane in the locking bar.

The utility model compared with prior art, its advantage:

The utility model can match with the clip inclined-plane in the locking bar because the bayonet lock end is provided with barb-like, and leaves clearance and make bayonet lock flexible, also is difficult for making in the bayonet lock contracting even hale locking bar.The utility model can one-body moldedly be made, and need not increase other on foot and manually make step, when open and close lock, can not hinder the extraction of locking bar again, and promote antitheft effect.

The utility model can also obtain further instruction from the following drawings and embodiment:

Fig. 1. be the existing core perspective exploded view of using.

Fig. 2. be that the utility model is implemented perspective exploded view.

Fig. 3. be the utility model cross-sectional schematic.

Fig. 4. be D-D place enlarged diagram among Fig. 3.

Fig. 5. be that the utility model is implemented the action schematic diagram.

Fig. 6. be the utility model partial schematic sectional view.

Fig. 7. be action schematic diagram of the present utility model.

Below by accompanying drawing embodiment of the present utility model is described in detail:

See also shown in Fig. 2,3,4, be enforcement of the present utility model, mainly be that lock body N is when key is locked and the drive piece 21 on rotation lock core top, drive piece 21 is inclined between the groove 23 of two bayonet locks 2, drives piece 21 tops this moment and contact (seeing also Fig. 3 and A shown in Figure 4) with the groove 23 1 side planes work point of bayonet lock 2; And through the drive piece 21 of improvement in middle milling one groove 20, these groove 20 inboards then become the inclined-plane contact with clipping block 22 sides of bayonet lock 2 and point contacts (seeing also Fig. 3 and B, C shown in Figure 4); And escape the anxiety with clipping block 22 mutual interference cleverly, with anti-jamming.When locking, owing to two bayonet locks 2 are done relative pining down with drive 21 one-tenth three points of piece (face) contact, this measure makes bayonet lock 2 not have clearance to stretch, therefore fill the effect that part reaches locking, and be easy to process and structure that theftproof is good, Fig. 5 is that the utility model is implemented on when unblanking, and drives piece 21 in vertical state.

Moreover, be provided with barb-like 24 in bayonet lock 2 ends, can match (as Fig. 6) and stay clearance to make bayonet lock 2 flexible with the clip inclined-plane 26 in the locking bar 25, also be difficult for making and contract in the bayonet lock 2 (as Fig. 7) even hale locking bar 25, also many one decks anti-theft effect.

The utility model can one-body moldedly be made in sum, need not increase other on foot and manually make step, and the utility model can not hinder the extraction of locking bar when open and close lock again, and promotes antitheft effect.

Claims

A core bayonet lock anti-ly pull out, strike-proof structure, the drive piece (21) that comprises core peaks at the groove (23) of two bayonet locks (2) and locates, it is characterized in that utilizing the drive piece (21) that adds milling groove (20) on core top to contact, and do relative containing with the groove (23) and clipping block (22) Cheng Sandian of bayonet lock (2).
2. core bayonet lock according to claim 1 is prevented pulling out, strike-proof structure, the end that it is characterized in that bayonet lock (2) is provided with barb-like inclined-plane (24), can cooperate with the clip inclined-plane (26) in the locking bar (25), and bayonet lock (2) end is provided with barb-like inclined-plane (24), also can be separately set in end.