CN2760175Y

CN2760175Y - A theft-proof lock

Info

Publication number: CN2760175Y
Application number: CN 200420119066
Authority: CN
Inventors: 毛淑儿
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-12-30
Filing date: 2004-12-30
Publication date: 2006-02-22
Anticipated expiration: 2014-12-30

Abstract

The utility model discloses a theft-proof lock, which belongs to the technical field of locks used for container doors. The theft-proof lock is provided with a double convex platform structure which is corresponding to a dovetail structure and the head part of a cylindrical pin is relatively connected with the dovetail structure; the dovetail structure comprises two convex teeth, the volume and the length of the upper convex tooth are smaller than the volume and the length of the lower convex tooth, and tooth space grooves are arranged among the convex teeth; the double convex platform structure comprises two flat convex platforms, wherein the platform surface of the lower convex platform is extended outward to form an extending surface which is provided with a lock hole which is convenient for adding a lock, and one side of each convex platform is provided with a convex body; the back of the lower convex tooth is provided with a radian flange of which the radius R is from 13 mm to 14 mm, and the flange on the back of the lower convex tooth is higher than the height of the back of an original lower convex tooth by 5-10 mm. Because the back of the lower convex tooth is provided with the flange, the center distance of the lock is increased when a door is opened, the door can be directly and fully opened by one time, and the container doors are convenient to open.

Description

A kind of anti-theft lock end

Technical field

The utility model relates to a kind of container accessory, the anti-theft lock end that particularly a kind of container door is used.

Background technology

Number of patent application is the anti-theft lock end in 200420023381.7 the Chinese patent application, though opening container door exerts oneself less and can make the process of opening door keep balance, but as shown in Figure 2, because the radian at the back 11 of the lower raised teeth (promptly long pin) 2 in two swallow-tail form bidentate structures is more flat, the centre distance of opening the door is less, so can not once directly open door, door can not be opened fully when promptly once opening, there is the problem of the inconvenience of opening the door.

The utility model content

At the shortcoming that exists in the above-mentioned prior art, technical problem to be solved in the utility model provides a kind ofly can once directly open door, easy to operate anti-theft lock end.

In order to solve the problems of the technologies described above, connect swallowtail-shaped structure and the double polarizing keys structure relative relatively with described swallowtail-shaped structure according to a kind of straight pin head provided by the utility model; Described swallowtail-shaped structure comprises two double wedges, and the volume of upper raised teeth forms the between cog groove less than the volume of lower raised teeth between described double wedge; Described double polarizing keys structure comprises two flat boss, the table top of lower convex platform stretches out and forms an extended surface, described extended surface is provided with lockhole so that lock, form the interstation groove between described boss, described boss one side is established a bossy body, and described bossy body is extended respectively by the certain thickness convex surface of tool and described two boss edges and intersects at two contacts; The radius R that the back of lower raised teeth is provided with radian is the flange of 13-14mm, and the height that the flange at lower raised teeth back exceeds former lower raised teeth back is 5-10mm.

On the one hand, the edge line of the side of described two boss is certain negative camber lines to curvature.

On the other hand, two lateral extents of the axis of the mid point of described between cog groove and interstation groove formation are distributed with described lower raised teeth and last lower convex platform and two contacts gone up symmetrically.

On the other hand, the vertical distance between two contacts be between boss vertical distance 2/3 to 3/4.

The anti-theft lock end that the utility model provides owing to be provided with flange at the back of lower raised teeth, has increased the centre distance when tapered end opens the door, so just can once directly, fully open door, has made things convenient for the unlatching of container door; To be arranged to radius of the radian R be 13-14mm to lower raised teeth back flange in addition, less than original radius of the radian, thereby can reduce the resistance of rotation when opening the door.

Description of drawings

Fig. 1 is the structural representation of facing of anti-theft lock end;

Fig. 2 is the plan structure schematic diagram of former antitheft tapered end;

Fig. 3 is the plan structure schematic diagram of anti-theft lock end of the present utility model.

The specific embodiment

Below in conjunction with description of drawings enforcement of the present utility model is described in further detail, but present embodiment is not limited to the utility model, every employing analog structure of the present utility model and similar variation thereof all should be listed the novel protection domain of this enforcement in.

Embodiment one

Referring to shown in Figure 1, the anti-theft lock end that present embodiment is described, in order to achieve the above object, its structure is that a straight pin head 1 connects swallowtail-shaped structure and the double polarizing keys structure relative with described swallowtail-shaped structure relatively; Described swallowtail-shaped structure comprises two double wedges, and the volume of upper raised teeth 2 forms between cog groove 4 less than the volume of lower raised teeth 3 between described double wedge; Described double polarizing keys structure comprises two flat boss, convex platform 5 and lower convex platform 6, wherein the table top of lower convex platform 6 stretches out and forms an extended surface 7, described extended surface 7 is provided with lockhole so that lock, form interstation groove 9 between described boss, described boss one side is established a bossy body 10, and described bossy body is extended respectively by the certain thickness convex surface of tool and described two boss edges and intersects at two contacts 11 and 12.

Fig. 2 is the plan structure schematic diagram of former antitheft tapered end, and as shown in the figure, a straight pin head connects swallowtail-shaped structure and the boss structure relative with described swallowtail-shaped structure relatively; Described swallowtail-shaped structure comprises two double wedges, the volume of upper raised teeth 2 is less than the volume of lower raised teeth, described double polarizing keys structure comprises two flat boss, wherein the table top of lower convex platform stretches out and forms an extended surface 7, described extended surface 7 is provided with lockhole 8 so that lock, and described boss one side is established a certain thickness excrescence of tool; The radius r of the radian at lower raised teeth 2 backs 13 is 60mm.

During use, rotational lock head, its last lower raised teeth snap in respectively that lock laterally places the both sides up and down and the position of its coupling of T font projection, realize locking.When tapered end Rotate 180 °, just in time facing to the top of the T font projection of lock, two contacts are connected with the top bossy body on the tapered end, the support of formation rotating torque.

The plan structure of embodiment of the present utility model as shown in Figure 3, a straight pin head connects swallowtail-shaped structure and the boss structure relative with described swallowtail-shaped structure relatively; Described swallowtail-shaped structure comprises two double wedges, the volume of upper raised teeth is less than the volume of lower raised teeth, described double polarizing keys structure comprises two flat boss, wherein the table top of lower convex platform stretches out and forms an extended surface, described extended surface is provided with lockhole so that lock, and described boss one side is established a certain thickness excrescence of tool; The radius R that the back of lower raised teeth is provided with radian is the flange 14 of 13.5mm, and the height 15 that the flange 14 at lower raised teeth back exceeds former lower raised teeth back is 8mm.

In addition, on the basis of embodiment one, to one of ordinary skill in the art, the utility model still can be done many variations.

Claims

1. anti-theft lock end, its structure is that a straight pin head connects swallowtail-shaped structure and the double polarizing keys structure relative with described swallowtail-shaped structure relatively; Described swallowtail-shaped structure comprises two double wedges, and the volume of upper raised teeth forms the between cog groove less than the volume of lower raised teeth between described double wedge; Described double polarizing keys structure comprises two flat boss, convex platform and lower convex platform, the table top of described lower convex platform stretches out and forms an extended surface, described extended surface is provided with lockhole so that lock, form the interstation groove between described boss, described boss one side is established a bossy body, and described bossy body is extended respectively by the certain thickness convex surface of tool and described two boss edges and intersects at two contacts; It is characterized in that the radius R that the back of lower raised teeth is provided with radian is the flange of 13-14mm, the height that the flange at lower raised teeth back exceeds former lower raised teeth back is 5-10mm.

2. anti-theft lock end according to claim 1 is characterized in that, the edge line of the side of described two boss is camber lines of a specific curvature scope.

3. anti-theft lock end according to claim 1 and 2 is characterized in that, two lateral extents of the axis that the mid point of described between cog groove and interstation groove forms are distributed with described lower raised teeth and last lower convex platform and two contacts gone up symmetrically.

4. anti-theft lock end according to claim 1 and 2 is characterized in that, the vertical distance between two contacts be between boss vertical distance 2/3 to 3/4.