CN218644068U - Door and window chain lock - Google Patents

Abstract

The utility model discloses a door and window chain lock, which comprises a fixed shell, a fixed base, be fixed with the sword iron on the set casing, the sword iron other end is detained on the ring, the ring cover is detained at the spring bolt, the spring bolt is detained to the cylinder, it is served to one of keeping away from the ring and has seted up the ring groove, be provided with on the fixing base and be used for carrying out spacing stop gear to the spring bolt knot, stop gear is including installing in the inside lock core of fixing base, the lock core is fixed in the fixing base through the base, fixedly connected with spring between its and the base, a side wall that the fixing base is close to the spring bolt knot, and seted up first draw-in groove on the symmetrical another side wall, the diameter size looks adaptation that first draw-in groove and spring bolt are detained, the spring bolt is detained and is slided and is located in the first draw-in groove, the fixing base coats and is stamped a sheetmetal, the second draw-in groove has been seted up with the corresponding department of spring bolt knot on the sheetmetal, the second draw-in groove card is in the outside of ring groove, the head card of spring bolt knot is between sheetmetal and the fixing base, second draw-in the ring groove is sensitive.

Description

Door and window chain lock

Technical Field

The utility model relates to a door and window lock technical field especially relates to a door and window chain lock.

Background

The existing door and window lock is designed for locking after closing. When the door and window is opened, a limit lock is additionally installed when the door and window is required to be limited to be opened at different angles or in different opening ranges. A chain lock is a metal chain with a lock mounted on the inside of a gate. It is composed of four parts of two lock plates, a chain and a lock catch. Steel wire ropes are used in the market, or anti-theft chains are designed without lock cores. When in use, the steel wire has strong elasticity to scrape the window, and the lock core is not designed, so that the safety factor is not high.

According to the patent document with publication number CN215830233U, it is described as follows: through the first tapered end that sets up, when people need not to open the door, hang into the rectangular lockhole basis of second jam plate at the second tapered end on, hang into the fixed lockhole of first jam plate with the first tapered end in the middle of the chain again, two tapered ends just are fixed respectively on the jam plate of door and door frame like this, have the chain firm connection between two tapered ends, because chain length between two tapered ends is very short, receive the chain to pull the restriction, the door can't be opened, the security has been increased. However, this operation is troublesome and it is not possible to directly fix the free end of the locking bar while the door is closed and locked.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of prior art, the utility model provides a door and window chain lock, the locking strip through setting up, a fixed base, sheetmetal and lock core, the one end of locking strip is fixed in on the wall, the other end slides and locates in fixing base and the sheetmetal, when door and window locking, the lock core pops out and shelters from first recess and second recess, the spring bolt is detained and can't be taken out from in first recess and the second recess this moment, the effect of locking the locking strip has been played, the factor of safety of locking strip has been strengthened, and it is very convenient.

In order to solve the technical problem, the utility model provides a following technical scheme: a door and window chain lock comprises a fixed shell and a fixed seat, wherein a lock bar is fixed on the fixed shell, the other end of the lock bar is buckled on a ring, the ring is sleeved on a lock tongue buckle, the lock tongue buckle is a cylinder, one end of the lock tongue buckle, which is far away from the ring, is provided with a ring groove, the fixed seat is provided with a limiting mechanism for limiting the lock tongue buckle, the limiting mechanism comprises a lock cylinder arranged in the fixed seat, one side wall surface of the fixed seat, which is close to the lock tongue buckle, and the other symmetrical side wall surface are provided with a first clamping groove, the first clamping groove is matched with the diameter of the lock tongue buckle, the lock tongue buckle is slidably arranged in the first clamping groove, the fixed seat is covered with a metal sheet, a second clamping groove is formed in the position, which corresponds to the lock tongue buckle, the second clamping groove is clamped outside the ring groove, and the head of the lock tongue buckle is clamped between the metal sheet and the fixed seat;

specifically, the second clamping groove is matched with the circular ring groove, and the diameter of the second clamping groove is smaller than that of the first clamping groove;

furthermore, the lock cylinder is fixed in the fixed seat through the base, and a spring is fixedly connected between the lock cylinder and the base.

As a preferred technical scheme of the utility model, the mounting groove with lock core shape, big or small looks adaptation is seted up to the inside of fixing base, the lock core passes through in the bolt fastening is in the fixing base, through seting up the mounting groove in the fixing base, easy to assemble lock core.

As a preferred technical scheme of the utility model, the sheetmetal closes with the outward appearance of fixing base is quick, and the lockhole has been seted up with the corresponding department of lock core in its top, on the both sides of sheetmetal were passed through the bolt fastening and are fixed in the fixing base, install a screw block on its and fixing base fixed connection's the part, through seting up the lockhole at the sheetmetal top, make things convenient for the lock core to pop out, through installing the screw block in the sheetmetal both sides, can shelter from bolt and screw, play pleasing to the eye effect of decorating.

As an optimal technical scheme of the utility model, the cross-section of set casing is the C type, has seted up the mounting hole on it, the rivet has been alternate in the mounting hole, in the set casing was located to the one end of holding strip, rivet connection is between set casing and holding strip, through the set casing and the rivet that set up, because of the holding strip other end is the free end, set casing and rivet are fixed the one end of holding strip, can prevent that the whole root of holding strip from droing.

Compared with the prior art, the utility model discloses the beneficial effect that can reach is:

through the locking strip, fixing base, sheetmetal and the lock core that set up, on the one end of locking strip was fixed in the wall, in the other end slided and locates fixing base and sheetmetal, when door and window locking, the lock core was popped out and is sheltered from first recess and second recess, and the spring bolt is detained and can't be taken out from first recess and second recess this moment, has played the effect of locking the locking strip, has strengthened the factor of safety of locking strip to it is very convenient.

Drawings

FIG. 1 is a schematic view of the three-dimensional structure of the present invention;

FIG. 2 is an exploded view of the present invention;

fig. 3 is a side view of the present invention;

wherein: 1. a stationary case; 2. a locking bar; 3. riveting; 4. a fixed seat; 5. a metal sheet; 6. a lock cylinder; 7. a screw cap; 8. a circular ring; 9. a lock tongue buckle; 901. a circular groove; 10. mounting grooves; 11. a first card slot; 12. a second card slot; 13. a spring.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the invention easy to understand, the invention is further explained below with reference to the specific embodiments, but the following embodiments are only the preferred embodiments of the invention, not all. Based on the embodiments in the embodiment, those skilled in the art can obtain other embodiments without making creative efforts, and all of them belong to the protection scope of the present invention. The experimental procedures in the following examples were carried out in a conventional manner unless otherwise specified, and materials, reagents and the like used in the following examples were commercially available unless otherwise specified.

Examples

As shown in fig. 1, 2, and 3, the present invention provides a door and window chain lock, including a fixing shell 1 and a fixing seat 4, wherein a locking bar 2 is fixed on the fixing shell 1, the other end of the locking bar 2 is buckled on a circular ring 8, the circular ring 8 is sleeved on a locking dog buckle 9, the locking dog buckle 9 is a cylinder, one end of the locking dog buckle far away from the circular ring 8 is provided with a circular ring 8 groove, the fixing seat 4 is provided with a limiting mechanism for limiting the locking dog buckle 9, the limiting mechanism includes a locking core 6 installed inside the fixing seat 4, the locking core 6 is fixed in the fixing seat 4 through the base, a spring 13 is fixedly connected between the locking dog buckle and the base, a first clamping groove 11 is formed on one side wall surface of the fixing seat 4 close to the locking dog buckle 9 and the other symmetrical side wall surface, the first clamping groove 11 is matched with the diameter of the locking dog buckle 9, the locking dog buckle 9 is slidably arranged in the first clamping groove 11, a metal sheet 5 is covered on the fixing seat 4, a position of the metal sheet 5 corresponding to the locking dog buckle 9 is provided with a second clamping groove 12, the diameter of the second clamping groove 12 is smaller than the diameter of the fixing dog buckle, the fixing dog buckle 8, the head of the fixing dog buckle, and the second clamping groove 11, and the head of the fixing seat 4 is smaller than the diameter of the second clamping groove 12, and the second clamping groove 11;

when the door and window chain lock is used, the fixed shell 1 is installed on a wall through a bolt, the fixed seat 4 is installed on a door and a window, one end of the locking strip 2 is fixed on the fixed shell 1 through the rivet 3, the other end of the locking strip is inserted into the fixed seat 4 and the metal sheet 5 from the upper part of the first groove and the second groove, and is arranged in the fixed seat 4 and the metal sheet 5 in a sliding manner and limited by the metal sheet 5 covered on the fixed seat 4, so that the locking dog buckle 9 can not fall off from the first groove, when the door and window is not locked, the key is rotated under the action of the key to drive the locking dog 6 to compress the spring 13, the spring 13 is deformed under stress, and thus elastic potential energy which is recovered to the original shape is provided, the locking dog 6 is wholly contracted in the fixed seat 4, the first groove and the second groove can not be blocked to limit the locking dog buckle 9, the door and window is pushed, the locking dog buckle 9 connected on the locking strip 2 slides in the first groove, the locking strip 2 is lengthened and is connected between the door and the wall, when the door and window is in a locked state, the key is rotated again, after the key is pulled out, under the action of the elastic force of the spring 13, the key rebounds and drives the lock cylinder 6 to move, the lock cylinder 6 is popped out of the mounting groove 10 in the fixed seat 4 and extends out of the lock hole on the metal sheet 5, the lock cylinder 6 shields the first groove and the second groove, at the moment, the lock tongue buckle 9 cannot be taken out of the first groove and the second groove, the locking effect of the lock bar 2 is achieved, through the arranged lock bar 2, the fixed seat 4, the metal sheet 5 and the lock cylinder 6, one end of the lock bar 2 is fixed on the wall, the other end of the lock bar is arranged in the fixed seat 4 and the metal sheet 5 in a sliding manner, when the door and window is opened, the lock cylinder 6 is completely positioned in the fixed seat 4, the first groove and the second groove are not shielded, and the other end of the lock bar 2 can be inserted into the first groove and the second groove from the upper side, the lock bar is arranged in the fixed seat 4 and the metal sheet 5 in a sliding way, and the opening of the door and window lock bar 2 can be limited at the moment, so that children are prevented from falling down from the building carelessly; and when door and window locking, 6 pop out of lock core and shelter from first recess and second recess, and bolt lock 9 can't take out in first recess and the second recess this moment, has played the effect of locking to gib 2, has strengthened the factor of safety of gib 2.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a door and window chain lock, includes set casing (1), fixing base (4), its characterized in that: be fixed with sword iron (2) on set casing (1), sword iron (2) other end is detained on ring (8), ring (8) cover is on spring bolt knot (9), spring bolt knot (9) are the cylinder, and its one of keeping away from ring (8) is served and has been seted up circular groove (901), be provided with on fixing base (4) and be used for carrying out spacing stop gear to spring bolt knot (9), stop gear includes that the spring bolt is detained (9)

Install in inside lock core (6) of fixing base (4), first draw-in groove (11) have been seted up on a lateral wall face that fixing base (4) are close to spring bolt knot (9) and symmetrical opposite side wall face, first draw-in groove (11) and the diameter size looks adaptation that spring bolt detained (9), spring bolt knot (9) slide locate in first draw-in groove (11), fixing base (4) coats and is stamped a sheetmetal (5), second draw-in groove (12) have been seted up with spring bolt knot (9) corresponding department on sheetmetal (5), second draw-in groove (12) card is in the outside of circular ring groove (901).

2. A door and window chain lock as claimed in claim 1, wherein: the lock cylinder is characterized in that a mounting groove (10) matched with the shape and size of the lock cylinder (6) is formed in the fixing seat (4), and the lock cylinder (6) is fixed in the fixing seat (4) through a bolt.

3. A door and window chain lock as claimed in claim 1, wherein: the appearance of the metal sheet (5) is in sensitive fit with the appearance of the fixed seat (4), a lock hole is formed in the position, corresponding to the lock cylinder (6), of the top of the metal sheet, two sides of the metal sheet (5) are fixed on the fixed seat (4) through bolts, and a screw cap (7) is installed on the part, fixedly connected with the fixed seat (4), of the metal sheet.

4. A door and window chain lock as claimed in claim 1, wherein: the second clamping groove (12) is matched with the circular groove (901) in a sensitive mode, and the diameter of the second clamping groove is smaller than that of the first clamping groove (11).

5. A door and window chain lock as claimed in claim 1, wherein: the lock cylinder (6) is fixed in the fixed seat (4) through the base, and a spring (13) is fixedly connected between the lock cylinder and the base.

6. A door and window chain lock as claimed in claim 1, wherein: the cross section of the fixing shell (1) is C-shaped, a mounting hole is formed in the fixing shell, a rivet (3) penetrates through the mounting hole, one end of the locking strip (2) is arranged in the fixing shell (1), and the rivet (3) is connected between the fixing shell (1) and the locking strip (2).

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