CN216690681U

CN216690681U - Double-safety latch structure

Info

Publication number: CN216690681U
Application number: CN202123325022.XU
Authority: CN
Inventors: 徐银元
Original assignee: Taixing Tiandi Tongchuang Mechanical Equipment Co ltd
Current assignee: Taixing Tiandi Tongchuang Mechanical Equipment Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-06-07
Anticipated expiration: 2031-12-27

Abstract

The utility model discloses a double-safety plunger latch structure, which relates to the technical field of door locks and comprises a lock body and a lock plate, wherein the lock body comprises a first lock head, a second lock head and a lock tongue, one end of the first lock head and one end of the second lock head are both provided with a limiting strip, one side of the lock plate, which is close to the first lock head, is fixedly connected with an E-shaped limiting frame, the E-shaped limiting frame comprises a first limiting groove and a second limiting groove, the inner wall of the lock plate, which is far away from the first limiting groove and the second limiting groove, is provided with a sliding plate, the sliding plate is provided with two limiting components, the inner wall of the sliding plate, which is far away from the first limiting groove and the second limiting groove, is provided with a T-shaped groove, the inner wall of the T-shaped groove is provided with a through hole, and the limiting components are arranged in the T-shaped groove in a sliding manner. The utility model effectively prevents the door gap from generating a gap to cause shaking.

Description

Double-safety latch structure

Technical Field

The utility model relates to the technical field of door locks, in particular to a double-safety lock latch structure.

Background

The door lock is used as an anti-theft tool and has very wide application, each household in a family needs several door lock tools to be closed for theft prevention, the types of the locks are also divided into a plurality of types, and the types are divided into A level, B level and C level in performance.

The existing door lock comprises a main lock cylinder part, wherein a lock head in the lock cylinder is moved and inserted into a lock plate for fixing the lock cylinder, so that the door is firmly fixed, and the effect of safety protection is achieved.

However, the door lock is a frequently used device, and is often damaged by impact and the like, so that the lock head in the lock cylinder or the lock plate for fixing the lock head is damaged, a gap is generated between the lock head and the lock plate, poor tightness after the door is locked is caused, and the door is rocked to influence use.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a double-safety latch structure. The advantages are that: effectively preventing the door gap from generating a gap to cause shaking.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a two safe hasp structures, includes lock body and jam plate, the lock body includes first tapered end, second tapered end and spring bolt, spacing has all been seted up to first tapered end and second tapered end one end, one side fixedly connected with E shape spacing that the jam plate is close to first tapered end, E shape spacing includes first spacing groove and second spacing groove, the inner wall that first spacing groove and second spacing groove were kept away from to the jam plate is provided with the slide, install two spacing subassemblies on the slide.

Preferably, the inner wall of the sliding plate, which is far away from the first limit groove and the second limit groove, is provided with a T-shaped groove, the inner wall of the T-shaped groove is provided with a through hole, and the limit component is arranged in the T-shaped groove in a sliding manner.

Preferably, the limiting assembly comprises two inserting plates inserted into the inner wall of the top of the T-shaped groove and the inner wall of the bottom of the T-shaped groove, the opposite surfaces of the inserting plates are respectively connected with a limiting plate through a hinge, and the other ends of the limiting plates are connected through hinges.

Preferably, the two inserting plates are fixedly connected with the inner wall of the top and the inner wall of the bottom of the T-shaped groove through tension springs.

Preferably, a sliding groove is formed in one end, far away from the sliding plate, of the locking plate, a sliding block is connected in the sliding groove in a sliding mode, and a lifting handle with one end fixed to the inner wall of the sliding plate is fixedly inserted in the sliding block.

Preferably, both sides of the sliding groove are fixed with guide rods, and one end of the sliding block, which is close to the inner wall of the sliding groove, is provided with a guide groove matched with the guide rods.

Preferably, a U-shaped limiting block is fixed on one side, close to the lock tongue, of the lock plate, a cylindrical block is connected in the U-shaped limiting block in a rotating mode, a lock tongue limiting groove is formed in the outer wall of the cylindrical block, and a rotating rod penetrating through the lock plate is fixed at one end of the cylindrical block.

The utility model has the beneficial effects that:

1. according to the utility model, the door is closed, the key is rotated to enable the first lock head and the second lock head to be inserted into the first limiting groove and the second limiting groove, the handle is pushed by indoor personnel with hands to enable the limiting assembly to move, the two limiting plates form a triangular structure, and when the joint of the two limiting plates moves into the limiting strip, the first lock head and the second lock head are extruded, so that the first lock head and the second lock head are stably inserted into the first limiting groove and the second limiting groove, and the generation of shaking is effectively prevented.

2. According to the utility model, the guide rods are fixed on both sides of the sliding chute, the guide groove matched with the guide rods is formed in one end, close to the inner wall of the sliding chute, of the sliding block, and the sliding block can smoothly and stably move in the sliding chute by virtue of the arrangement of the guide rods and the guide groove.

3. According to the utility model, the U-shaped limiting block is fixed on one side, close to the lock tongue, of the lock plate, the cylindrical block is rotationally connected in the U-shaped limiting block, the lock tongue limiting groove is formed in the outer wall of the cylindrical block, the rotating rod penetrating through the lock plate is fixed at one end of the cylindrical block, the self-locking phenomenon is effectively prevented through the arrangement of the cylindrical block, when the door does not need to be automatically closed, the rotating rod is rotated to enable the lock tongue limiting groove to face inwards, and the lock tongue cannot be inserted in the lock tongue limiting groove for self-locking.

Drawings

Fig. 1 is a first perspective view of a dual safety latch according to the present invention;

FIG. 2 is a second structural schematic view of a dual security latch configuration in accordance with the present invention;

FIG. 3 is a schematic view of a lock plate structure of a dual safety latch structure according to the present invention;

FIG. 4 is an enlarged view of the structure of the dual security latch of the present invention shown at A in FIG. 1;

fig. 5 is an enlarged view of the structure of the dual security latch of the present invention shown at B in fig. 3.

In the figure: 1. a lock body; 2. a locking plate; 3. a first lock head; 4. a second lock head; 5. a latch bolt; 6. an E-shaped limiting frame; 7. a first limit groove; 8. a second limit groove; 9. a U-shaped limiting block; 11. a cylindrical block; 12. a lock tongue limiting groove; 13. a rotating rod; 14. a slide plate; 15. a T-shaped slot; 16. inserting plates; 17. a limiting plate; 18. a tension spring; 19. a chute; 20. a slider; 21. a guide bar; 22. a guide groove; 23. a handle; 24. and (5) a limiting strip.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1-3, a double safety plunger latch structure, including lock body 1 and jam plate 2, lock body 1 includes first tapered end 3, second tapered end 4 and spring bolt 5, spacing strip 24 has all been seted up to first

tapered end

3 and 4 one ends of second tapered end, one side fixedly connected with E shape spacing 6 that jam plate 2 is close to first tapered end 3, E shape spacing 6 includes first spacing groove 7 and second spacing groove 8, the inner wall that first spacing groove 7 and second spacing groove 8 were kept away from to jam plate 2 is provided with slide 14, install two spacing subassemblies on slide 14.

Referring to fig. 3-5, the inner walls of the sliding plate 14 far away from the first limiting groove 7 and the second limiting groove 8 are both provided with a T-shaped groove 15, the inner wall of the T-shaped groove 15 is provided with a through hole 25, the limiting component is slidably arranged in the T-shaped groove 15, the installation and sliding of the limiting component are facilitated by the arrangement of the T-shaped groove 15 and the through hole 25, the limiting component comprises two insertion plates 16 inserted in the top inner wall and the bottom inner wall of the T-shaped groove 15, the opposite surfaces of the insertion plates 16 are both connected with a limiting plate 17 through hinges, the other ends of the two limiting plates 17 are connected through hinges, the two limiting plates 17 form a triangular structure and can be embedded in a limiting strip 24 to extrude the first lock head 3 and the second lock head 4, so that the first lock head 3 and the second lock head 4 are stably inserted in the first limiting groove 7 and the second limiting groove 8, the generation of shaking is effectively prevented, the two insertion plates 16 are both fixedly connected with the top inner wall and the bottom inner wall of the T-shaped groove 15 through a tension spring 18, utilize tension spring 18's extension power, can make picture peg 16 and limiting plate 17 have the mobility ability, play the buffering guard action simultaneously, slide 19 has been seted up to the one end that slide 14 was kept away from to jam plate 2, sliding connection has slider 20 in slide 19, slider 20 internal fixation is pegged graft and is had one end to fix the handle 23 at slide 14 inner wall, utilize slider 20 and slide 19's setting, the stability of spacing subassembly has effectively been increased, and be convenient for the removal of spacing subassembly, slide 19's both sides all are fixed with guide bar 21, slider 20 is close to slide 19 inner wall one end and sets up the guide way 22 with guide bar 21 looks adaptation, utilize the setting of guide bar 21 and guide way 22, can make smooth and easy stable removal in slide 19 of slider 20.

Referring to fig. 3, one side that jam plate 2 is close to spring bolt 5 is fixed with U-shaped stopper 9, the rotation of U-shaped stopper 9 is connected with cylinder piece 11, spring bolt spacing groove 12 has been seted up to cylinder piece 11 outer wall, the one end of cylinder piece 11 is fixed with the bull stick 13 that passes jam plate 2, through the setting of cylinder piece 11, effectively prevent auto-lock phenomenon, when not needing the automatic door that closes, rotate bull stick 13 and make spring bolt spacing groove 12 inwards, spring bolt 5 can't peg graft and carry out the auto-lock in spring bolt spacing groove 12.

The working principle is as follows: during the use, the door is closed, change the key, make first tapered end 3 and second tapered end 4 inject first spacing groove 7 and second spacing inslot 8, indoor personnel promote handle 23 with the hand, make spacing subassembly remove, two limiting plates 17 form the triangle-shaped structure, move to spacing strip 24 in the junction of two limiting plates 17, extrude first tapered end 3 and second tapered end 4, make the stable grafting of first tapered end 3 and second tapered end 4 at first spacing groove 7 and second spacing inslot 8, effectively prevent the production of rocking.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a two safe hasp structures, includes lock body (1) and jam plate (2), its characterized in that, lock body (1) includes first tapered end (3), second tapered end (4) and spring bolt (5), spacing (24) have all been seted up to first tapered end (3) and second tapered end (4) one end, jam plate (2) are close to one side fixedly connected with E shape spacing (6) of first tapered end (3), E shape spacing (6) include first spacing groove (7) and second spacing groove (8), the inner wall that first spacing groove (7) and second spacing groove (8) were kept away from in jam plate (2) is provided with slide (14), install two spacing subassemblies on slide (14).

2. The double safety latch structure according to claim 1, characterized in that the inner walls of the sliding plate (14) far away from the first limit groove (7) and the second limit groove (8) are both provided with T-shaped grooves (15), the inner walls of the T-shaped grooves (15) are provided with through holes (25), and the limit component is slidably arranged in the T-shaped grooves (15).

3. A double safety latch structure according to claim 1, wherein the limiting assembly comprises two insertion plates (16) inserted into the top inner wall and the bottom inner wall of the T-shaped slot (15), the opposite surfaces of the insertion plates (16) are both connected with limiting plates (17) through hinges, and the other ends of the two limiting plates (17) are connected through hinges.

4. A double safety latch construction according to claim 3, characterised in that both insert plates (16) are fixedly connected to the top and bottom inner walls of the T-shaped slot (15) by means of tension springs (18).

5. The double safety latch structure according to claim 4, characterized in that a sliding groove (19) is formed in one end of the latch plate (2) far away from the sliding plate (14), a sliding block (20) is slidably connected in the sliding groove (19), and a handle (23) with one end fixed to the inner wall of the sliding plate (14) is fixedly inserted in the sliding block (20).

6. The double safety latch structure according to claim 5, characterized in that guide rods (21) are fixed on both sides of the sliding groove (19), and one end of the sliding block (20) close to the inner wall of the sliding groove (19) is provided with a guide groove (22) matched with the guide rods (21).

7. The double-safety latch structure according to claim 1, wherein a U-shaped limiting block (9) is fixed on one side of the lock plate (2) close to the latch (5), a cylindrical block (11) is rotatably connected in the U-shaped limiting block (9), a latch limiting groove (12) is formed in the outer wall of the cylindrical block (11), and a rotating rod (13) penetrating through the lock plate (2) is fixed at one end of the cylindrical block (11).