CN202073379U

CN202073379U - Door lock

Info

Publication number: CN202073379U
Application number: CN2010206480777U
Authority: CN
Inventors: 徐钜祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-12-08
Filing date: 2010-12-08
Publication date: 2011-12-14
Anticipated expiration: 2020-12-08

Abstract

The utility model relates to a door lock, comprising a lock body butt-jointed by a connecting rod. The connecting rod and the lock body are fixed by a fastening piece; the lock body is internally provided with a lock core shaft; a reinforcing sleeve is inserted and sheathed outside the lock body; the lock body is internally and fixedly provided with a matching sleeve; the lock core shaft is rotatably arranged in the matching sleeve; and a boss is formed on an outer ring of the matching sleeve and is embedded into a groove of the lock body. In the door lock, the defects of the common door lock in the prior art that the production cost is high, the rigid strength is low and the fracture is easy due to forced drawing by external force are overcome; and by the design, the lock body can be made of other metal materials with low cost, so that the production cost is reduced greatly under the condition that the use performance is not changed, the lock body and the connecting rod can be very firmly combined together under the double action of the fastening piece and a clamping spring, and due to the design of the reinforcing sleeve, the strength of the lock body for resisting the forced drawing is greatly improved. The door lock has the advantages that the structure design is simple and compact, the assembly is convenient, the production cost is low and the reliability is strong.

Description

A kind of door lock

Technical field

The utility model relates to a kind of door lock.

Background technology

The lock body of common door lock, for convenient for assembly, in the middle of generally all being divided into two, lock body links to each other with securing member by extension bar, this door lock, its lock body is all made by copper material, not only the cost of production height, and rigidity intensity is lower, lock body is fracture easily under the pressure that is subjected to external force stretches, if the material of lock body changed into the lower metal material of other price then can aggravate the wearing and tearing of copper lock core again, and reduction application life.

Summary of the invention

In order to overcome the cost of production height of common door lock in the prior art, and rigidity intensity is lower, be subjected to the problem of the easy fracture of pressure stretching of external force, the utility model provides a kind of door lock, the simple compactness of the structure design of this door lock, lower, anti-intensity height, the good reliability of forcing stretching of cost of production.

The technical scheme that its technical problem that solves the utility model adopts is: comprise the lock body by the extension bar butt joint, fix by securing member between extension bar and lock body, be provided with lock core shaft in the lock body, lock body extrapolation cover reinforcing sleeve is set, secure fit cover in the lock body, lock core shaft is arranged in the engage sleeves rotationally.

Form boss on the outer shroud of engage sleeves, boss embeds in the interior groove of lock body.

The default annular groove in extension bar two ends also inserts in the jack of relative lock body, and lock body is provided with the fluting relative with annular groove, and reinforcing sleeve is provided with the draw-in groove relative with annular groove, and jump ring snaps in draw-in groove, fluting and the annular groove reinforcing sleeve, lock body and extension bar are connected and fixed.

Linked to each other by the location jump ring in the radial direction between lock body below the lock core shaft and reinforcing sleeve, the location jump ring is provided with the depression that matches with boss.

The utility model is by above-mentioned specific design, lock body can adopt the lower metal material manufacturing of other price, under the prerequisite that does not change functional performance, greatly reduce cost of production, double action down lock body and extension bar at securing member and jump ring can combine very securely, add the design of reinforcing sleeve, greatly improved the anti-intensity that stretches of forcing of lock body, had that structure design is simple compact, easy to assembly, cost of production is low, the advantage of good reliability.

Description of drawings

Below in conjunction with drawings and Examples detailed content of the present utility model is described.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the A-A sectional view of Fig. 1.

Fig. 3 is the B-B sectional view of Fig. 1.

The specific embodiment

As shown in the figure, the utility model comprises the lock body 1 by extension bar 2 butt joints, the lower materials of price such as lock body 1 employing kirsite are made, fixing between extension bar 2 and lock body by securing member 3, securing member 3 can be a screw, be provided with lock core shaft 4 in the lock body, lock body 1 extrapolation cover reinforcing sleeve 5 is set, the stronger materials of rigidity such as reinforcing sleeve 5 employing stainless steels are made, the mode of installing and fixing of reinforcing sleeve 5 can be: the default annular groove 7 in extension bar 2 two ends also inserts in the jack 8 of relative lock body 1, lock body 1 is provided with the fluting 9 relative with annular groove 7, reinforcing sleeve 5 is provided with the draw-in groove 10 relative with annular groove 7, jump ring 11 snaps in draw-in groove 10, the fluting 9 and annular groove 7 in reinforcing sleeve 5, lock body 1 and extension bar 2 are connected and fixed, and are being linked to each other by location jump ring 14 in the radial direction between lock body below the lock core shaft 41 and reinforcing sleeve 5.Double action down lock body and extension bar at securing member 3 and jump ring 11 can combine very securely, add the design of reinforcing sleeve 5, have greatly improved lock body 1 anti-intensity of forcing stretching, not easy fracture.Secure fit cover 6 in the lock body 1, lock core shaft 4 is arranged in the engage sleeves 6 rotationally, lock body 1 can be to form boss 12 on the outer shroud of engage sleeves 6 with the concrete syndeton of engage sleeves 6, in the groove 13 that boss 12 embeds in the lock body 1, on the jump ring 14 of location, also be provided with the depression 15 that matches with boss 12.Engage sleeves 6 adopts the copper material identical with lock core shaft 4, with the service wear of reduction lock core shaft 4.Above-described embodiment only is that the preferred implementation to a kind of door lock of the utility model is described; be not that design and scope to utility model limits; under the prerequisite that does not break away from the utility model scheme; various external form modification and improvement that those skilled in the art make the technical solution of the utility model all should fall into the protection domain of a kind of door lock of the utility model.

Claims

1. A kind of door lock, comprise lock body by the extension bar butt joint, fix by securing member between extension bar and lock body, be provided with lock core shaft in the lock body, it is characterized in that lock body (1) extrapolation cover reinforcing sleeve (5) is set, the interior secure fit cover of lock body (1) (6), lock core shaft (4) is arranged in the engage sleeves (6) rotationally.

2. A kind of door lock according to claim 1 is characterized in that forming boss (12) on the outer shroud of engage sleeves (6), and boss (12) embeds in the groove (13) in the lock body (1).

3. A kind of door lock according to claim 1 and 2, it is characterized in that the default annular groove (7) in extension bar (2) two ends and insert in the jack (8) of relative lock body (1), lock body (1) is provided with the fluting (9) relative with annular groove (7), reinforcing sleeve (5) is provided with the draw-in groove (10) relative with annular groove (7), and jump ring (11) snaps in draw-in groove (10), fluting (9) and the annular groove (7) reinforcing sleeve (5), lock body (1) and extension bar (2) are connected and fixed.

4. A kind of door lock according to claim 3, it is characterized in that between the lock body (1) of lock core shaft (4) below and reinforcing sleeve (5), linking to each other by location jump ring (14) in the radial direction, locate jump ring (14) and be provided with the depression (15) that matches with boss (12).