CN201475095U

CN201475095U - Latch

Info

Publication number: CN201475095U
Application number: CN200920176156XU
Authority: CN
Inventors: 张玉荣; 陈子健
Original assignee: DONGGUAN CHAOSU S&T DEVELOPMENT Co Ltd
Current assignee: DONGGUAN CHAOSU S&T DEVELOPMENT Co Ltd
Priority date: 2009-09-08
Filing date: 2009-09-08
Publication date: 2010-05-19
Anticipated expiration: 2019-09-08

Abstract

The utility model discloses a latch, comprising a hanger, a connector and a fixed piece, wherein the hanger is in inward-concave arc shape, one end thereof is bent into hook shape, and the other end thereof and one end of the fixed piece are respectively movably coupled with two ends of the connector; the connector can be shaped like a square ring; and the fixed piece is provided with screw holes. After being fastened, as the hanger is arc-shaped, the connector is tightly attached with the inward-concave surface of the hanger, and at the moment, a shell receives tension force to draw the arc-shaped hanger to opposite directions; the connecting position of the hanger and the connector receives force to displace toward the inner side, thus achieving the function of connecting and locking; on the contrary, as long as applying outward drawing force on the connecting part of the hanger and the connector, a hanger body of the hanger can be separated from a clamping groove, thus opening the latch. The latch can effectively connect two parts which are connected mutually, has firm connection and convenient assembly and disassembly, and the inward-concave arc shape can generate elastic pre-tightening force to guarantee that the connecting parts of the latch are not loose when being used for a long time.

Description

A kind of snap close

Technical field

The utility model relates to a kind of snap close, the connection set of two parts of a kind of specifically connection.

Background technique

The structure of two parts butt joints commonly used adopts screw-driving to fix after the butt joint.The docking structure that also has is provided with buckle in corresponding joint, connects chucking by buckle.But the housing of above-mentioned employing screw-driving, the dismounting inconvenience, particularly the screw thread of later screw brings bigger trouble to dismounting after overetching year in and year out.Though and adopt the buckle ways of connecting easy for installation, if adopt the plastic materials manufacturing, through use after a while after, can produce agingly so, and then connection becomes flexible, serious situation is next can't to realize the effect that connects; And if adopt the metallic material manufacturing, also can produce the problem of corrosion after after a while, dismantle inconvenient maintenance.

The employing snap close that also has in the market connects, but also more complicated all of the structure of snap close, and also the locking of most of snap closes is easy to occur loosening problem after using a period of time.

The model utility content

The purpose of this utility model provides a kind of snap close, solves buckle structure complexity commonly used, connects firm inadequately problem.

The purpose of this utility model is to be achieved through the following technical solutions:

A kind of snap close, it comprises hook, connecting body and fixed plate, described hook is the arc of indent, one end is converted into hook-shaped, one end of its other end and described fixed plate is coupling with the two ends activity of described connecting body respectively, and described connecting body can be Q-RING, and described fixed plate is provided with screw hole.

Because hook is curved, the concave surface of connecting body and hook is adjacent to, and this moment, housing was subjected to stretch round about arc hook of tension force, the stressed displacement to the inside in joint of hook and connecting body, thus reach the effect of locking that connects.And if connection is opened in hope,, can make hook separate, thereby reach the purpose of fractionation from hitching position as long as apply outside pulling force for hook and connecting body joint.

By above-mentioned snap close link, interconnective two parts effectively can be linked together, be connected firmly and convenient disassembly, and the arc of indent can produce flexible pretightening force, the long-time use of assurance snap close link and loosening.

Description of drawings

With embodiment the utility model is described in further detail with reference to the accompanying drawings below.

Fig. 1 is the structural drawing of the described snap close link of the utility model embodiment;

Fig. 2 is that the snap close link is installed in the scheme of installation on the lamp casing;

Fig. 3 is the free-body diagram of snap close link under the locking state;

Fig. 4 is the free-body diagram that external force is opened snap close link under the situation.

Among the figure:

1, hook; 2, connecting body; 3, fixed plate; 4, coupler body; 5, screw hole; 6, snap close; 7, housing.

Embodiment

Shown in Fig. 1-2, snap close 6 described in the utility model, be applied on the housing 7 of road lamp, it comprises hook 1, connecting body 2 and fixed plate 3, described hook 1 is the arc of indent, and an end is converted into hook-shaped coupler body 4, and an end of its other end and described fixed plate 3 is coupling with the two ends activity of described connecting body 2 respectively, described connecting body 2 is a Q-RING, and described fixed plate 3 is provided with screw hole 5.

Snap close 6 is screwed on lower half portion of housing 7 by fixed plate 3 among Fig. 2, is provided with corresponding draw-in groove at the upper half part of housing 7.

Its working principle as shown in Figs. 3-4, pull hook 1 at first laterally, after making coupler body 4 hook draw-in groove, to link up with 1 turns back to the inside, because hook 1 is curved, connecting body 2 is adjacent to the concave surface of hook 1, and this moment, two-part up and down of housing 7 were subjected to tension force to opposite negative drawing arc hook 1, with the stressed displacement to the inside in joint that forces hook 1 with connecting body 2, thereby reach the effect that connects locking.

And if snap close is opened in hope, then as shown in Figure 4, need only and apply outside pulling force for hook 1 and connecting body 2 joints, can make the coupler body 4 disengaging draw-in grooves of hook 1, thus the purpose that two-part separate about reaching.

Claims

1. a snap close is characterized in that, it comprises hook, connecting body and fixed plate, and described hook is the arc of indent, and an end is converted into hook-shaped, and an end of its other end and described fixed plate is coupling with the two ends activity of described connecting body respectively.

2. snap close according to claim 1 is characterized in that, described connecting body is a Q-RING.

3. snap close according to claim 1 is characterized in that described fixed plate is provided with screw hole.