CN201161788Y

CN201161788Y - Lock head

Info

Publication number: CN201161788Y
Application number: CNU2007200770774U
Authority: CN
Inventors: 吴友灿; 李铁锋
Original assignee: SHANGHAI SURALOC TRANSPORTATION EQUIPMENT COMPONENTS CO Ltd
Current assignee: SHANGHAI SURALOC TRANSPORTATION EQUIPMENT COMPONENTS CO Ltd
Priority date: 2007-12-24
Filing date: 2007-12-24
Publication date: 2008-12-10
Anticipated expiration: 2017-12-24

Abstract

The utility model discloses a locking head, wherein the head portion of a straight pin of the locking head is correspondingly connected with a swallow-tail form structure and a double lug boss structure which is corresponding to the swallow-tail form structure, the swallow-tail form structure is composed of upper convex teeth and lower convex teeth, and a tooth-spacing groove is formed between the two convex teeth, the volume of the lower convex teeth is larger than that of the upper convex teeth, the back portion of the lower teeth is provided with an arcuate flange whose radius R is 20mm, the flange is 11-15mm higher than that of the original lower convex teeth, the double lug boss structure is composed of a flat upper lug boss and a flat lower lug boss, and a boss-spacing groove is formed between the two lug bosses, and the boss surface of the lower lug boss extends outside to form an extension plane, one side of the two double lug bosses is provided with a convex body, since the flange is arranged on the back portion of the lower convex teeth, thereby the center space of the locking head during opening a door is increased, and the door can directly and completely opened in once, which is convenient to open the door of a container.

Description

A kind of tapered end

Technical field

The utility model relates to a kind of container accessory, particularly a kind of tapered end that is applied on the container door.

Background technology

Number of patent application is anti-theft lock end and the tapered end in 200420023381.7 Chinese patent application, its described anti-theft lock end, though opening container door exerts oneself less and can make the process of opening door keep balance, but as Fig. 2, because the radian at the back of the lower raised teeth (promptly long pin) in two dovetail 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, and has the problem of the inconvenience of opening the door.

The utility model content

The utility model can once be opened door, locking tapered end firm, easy to use at the existing deficiency of above-mentioned existing tapered end fully and provide a kind of.

In order to reach described purpose, the structure of the tapered end that the utility model provides is that a straight pin head connects swallowtail-shaped structure and the double polarizing keys structure relative with described swallowtail-shaped structure relatively, its described swallowtail-shaped structure is made up of upper raised teeth and lower raised teeth, form a between cog groove between two double wedges, and the volume of lower raised teeth is greater than the volume of upper raised teeth, the radius R that the back of lower raised teeth is provided with radian is the flange of 20mm, and the height that this flange exceeds former lower raised teeth back is 11-15mm; Above-mentioned double polarizing keys structure is made up of two flat convex platforms and lower bulge, forms the interstation groove between two boss, and the table top of lower bulge stretches out and forms the semicircle extended surface that radius R is 23mm; One side of described two boss is provided with has certain thickness bossy body, and this bossy body extension intersects at two contacts with above-mentioned two boss edges respectively.

The edge line of the side of two simultaneously above-mentioned boss is certain negative camber lines to curvature.

The both sides of on the one hand, describedly going up lower raised teeth, going up the axis that mid point that lower bulge and two contacts are symmetrically distributed in above-mentioned between cog groove and interstation groove forms.

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

The tapered end that the utility model provides owing to be provided with a flange at the back of lower raised teeth, has increased the centre distance when tapered end opens the door, thus just can be once direct, safe open door, made things convenient for the unlatching of container door; To be arranged to radius of the radian be 20mm to lower raised teeth back flange in addition, greater than original radius of the radian, thereby can reduce the resistance of rotation when opening the door.

Description of drawings

Further specify the utility model below in conjunction with the drawings and specific embodiments.

Fig. 1 is the structural representation of facing of the utility model tapered end.

Fig. 2 is the plan structure scheme drawing for existing tapered end.

Fig. 3 is the plan structure scheme drawing of the utility model tapered end.

The specific embodiment

For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.

Fig. 2 is described to be the structural representation of existing tapered end, its basic structure is that a straight pin head connects swallowtail-shaped structure and the boss structure relative with it relatively, this swallowtail-shaped structure comprises upper raised teeth 22 and lower raised teeth 33, and the volume of upper raised teeth is less than the volume of lower raised teeth, and the double polarizing keys structure comprises two flat boss, wherein the table top of lower bulge stretches out and forms an extended surface 27, this extended surface is provided with lockhole 28 so that lock, and boss one side is provided with one and has certain thickness excrescence; The radius r of the radian at the back 44 of lower raised teeth 33 is 60mm.

As shown in Figure 1, described in the present embodiment tapered end, its structure is that straight pin head 1 connects swallowtail-shaped structure and the double polarizing keys structure relative with it relatively; This swallowtail-shaped structure is made up of upper raised teeth 2 and lower raised teeth 3, form a between cog groove 4 between two double wedges, and the volume of lower raised teeth is greater than the volume of upper raised teeth; Above-mentioned double polarizing keys structure is made up of two flat convex platforms 5 and lower bulge 6, forms interstation groove 9 between two boss, and the table top of lower bulge 6 stretches out and forms the semicircle extended surface 7 that radius R is 23mm; One side of described two boss is provided with has certain thickness bossy body 10, and this bossy body extends and intersects at two

contacts

11 and 12 with above-mentioned two boss edges respectively, and the vertical distance between two contacts be between two boss vertical distance 2/3 to 3/4.

Provided the plan structure of involved tapered end in the present embodiment as Fig. 3, the edge line of the side of two above-mentioned boss is certain negative camber lines to curvature; The radius R that the back 13 of above-mentioned lower raised teeth is provided with radian is the flange 14 of 20mm, and the height 15 that this flange exceeds former lower raised teeth back is 11-15mm; Simultaneously above-mentioned last lower raised teeth, go up the both sides of axis that lower bulge and two contacts are symmetrically distributed in the mid point formation of above-mentioned between cog groove and interstation groove.

This tapered end is when work, as long as rotational lock head, its last lower raised teeth snaps in the both sides up and down of the horizontal T font projection of placing of lock and the position of its coupling respectively, realizes 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.

More than be one of embodiment of the present utility model,, do not spend performing creative labour, on the basis of the foregoing description, can do multiple variation, can realize the purpose of this utility model equally for those skilled in the art.But this variation obviously should be in the protection domain of claims of the present utility model.

Claims

1, a kind of tapered end, it is that a straight pin head connects swallowtail-shaped structure and the double polarizing keys structure relative with described swallowtail-shaped structure relatively, its described swallowtail-shaped structure is made up of upper raised teeth and lower raised teeth, form a between cog groove between two double wedges, and the volume of lower raised teeth is greater than the volume of upper raised teeth; Above-mentioned double polarizing keys structure is made up of two flat convex platforms and lower bulge, forms the interstation groove between two boss, and the table top of lower bulge stretches out and forms the semicircle extended surface that radius R is 23mm; One side of described two boss is provided with has certain thickness bossy body, and this bossy body extension intersects at two contacts with above-mentioned two boss edges respectively; It is characterized in that the radius R that the back of lower raised teeth is provided with radian is the flange of 20mm, the height that this flange exceeds the lower raised teeth back is 11-15mm.

2, a kind of tapered end according to claim 1 is characterized in that, the edge line of the side of described two boss is camber lines of a negative sense curvature.

3, a kind of tapered end according to claim 1 and 2 is characterized in that, the both sides of describedly going up lower raised teeth, going up the axis that mid point that lower bulge and two contacts are symmetrically distributed in above-mentioned between cog groove and interstation groove forms.

4, a kind of tapered end according to claim 1 and 2 is characterized in that, the vertical distance between described two contacts be between two boss vertical distance 2/3 to 3/4.