CN216446694U

CN216446694U - Anti-theft door lock

Info

Publication number: CN216446694U
Application number: CN202122948566.5U
Authority: CN
Inventors: 杨明龙
Original assignee: Jiangmen Kaiendi Hardware Products Co ltd
Current assignee: Jiangmen Kaiendi Hardware Products Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-05-06
Anticipated expiration: 2031-11-29

Abstract

The utility model discloses an anti-theft door lock, and relates to the technical field of door locks. The utility model provides a security door lock, includes the lock body, lock body one side is provided with the connector, be provided with mounting structure on the lock body, the lock body lower part is provided with the lock core, the lock core middle part is provided with connecting portion, lock core one end is provided with the safety button, be provided with on the connecting portion and block the structure, block the structure including inserting the inserted block of establishing in connecting portion. According to the utility model, through the arrangement of the blocking structure, the knob is rotated, the knob drives the connecting rod to rotate, the connecting rod drives the gear to rotate, and the gear drives the rack to move up and down, so that the insert block moves up and down, when the insert block moves up and moves out of the lock hole in the insert block, normal unlocking can be realized, when the insert block moves down and is inserted into the connecting part, the lock hole in the lock cylinder is blocked, so that a key cannot be inserted into the lock hole, a thief cannot easily open the door lock through the lock hole, and the anti-theft performance of the door lock is better improved.

Description

Anti-theft door lock

Technical Field

The utility model relates to the technical field of door locks, in particular to an anti-theft door lock.

Background

The door lock is a device which is arranged on a door and used for locking the door to prevent other people from easily opening the door, the door lock is various in types, mechanical in types and electronic in types, the types of the door lock are different according to different use occasions and use requirements, but most of the doors have a common characteristic, namely theft prevention, and the mechanical type theft prevention door lock is the most common theft prevention door lock in a plurality of theft prevention door locks.

The lock cylinder channel of the existing mechanical anti-theft door lock is usually not easy to block, so that a thief can easily use a lock hole in the lock cylinder to open the door lock by using some tools, and the anti-theft performance of the door lock is easy to reduce.

SUMMERY OF THE UTILITY MODEL

The present invention is made to solve the technical problems involved in the background art described above. Therefore, the utility model provides the anti-theft door lock, the knob is rotated through the arrangement of the blocking structure, the knob drives the connecting rod to rotate, the connecting rod drives the gear to rotate, the gear drives the rack to move up and down, so that the inserting block moves up and down, the lock can be normally unlocked when the inserting block moves up and moves out of the lock hole in the inserting block, the lock hole in the lock cylinder is blocked when the inserting block moves down and is inserted into the connecting part, a key cannot be inserted into the lock hole, a thief cannot easily open the door lock through the lock hole, and the anti-theft performance of the door lock is better improved.

The utility model provides a security door lock, which comprises a lock body, wherein a connecting body is arranged on one side of the lock body, an installation structure is arranged on the lock body, the lock body and the connecting body are installed on a door through the installation structure, and the installation structure enables the lock body, the connecting body and the door to be installed more tightly;

a lock cylinder is arranged at the lower part of the lock body, and a connecting part is arranged in the middle of the lock cylinder; one end of the lock cylinder is provided with a safety button, and the safety button is connected with the connecting part, so that the safety button can be conveniently screwed to screw out the safety block;

the connecting part is provided with a blocking structure which can block the keyhole from being inserted by a key, so that the anti-theft performance of the door lock is better improved;

the blocking structure comprises an inserting block inserted into the connecting part, a rack is arranged on one side of the upper part of the inserting block, a gear is meshed on one side of the rack, blocking pieces are symmetrically arranged at the upper end and the lower end of the rack, the blocking pieces play a limiting role on the gear, the gear can drive the rack to move up and down by rotating, so that the inserting block is driven to move up and down, and the position of the inserting block is well controlled;

one side of the gear is provided with a limiting rod, the other side of the gear is provided with a connecting rod, the limiting rod limits the position of the gear, and the connecting rod is convenient to extend to the outside to control the rotation of the gear;

the limiting hole matched with the limiting rod is formed in the inserting block, a knob is arranged at one end of the connecting rod, the limiting hole limits the left position and the right position of the limiting rod, and the knob enables the connecting rod to be controlled to rotate so as to drive the gear to rotate.

Preferably, the lock body is in the shape of a cuboid, a linkage structure for controlling the door lock is arranged in the lock body, and the linkage structure is used for controlling the bolt and the safety block to enter and exit in the prior art.

Preferably, the mounting structure includes the quad slit of seting up on the lock body, quad slit top and below all are provided with the installation pipe, and the quad slit is convenient for install the handle on the lock body positive and negative, and the installation pipe is convenient for with this lock body and the panel looks fixed mounting of positive and negative.

Preferably, the mounting structure further comprises mounting holes symmetrically formed in two sides of the square hole, a core hole matched with the lock core is formed in the lower portion of the lock body, the mounting holes are symmetrically formed in two sides of the core hole, the lock body is convenient to mount on a door through the mounting holes, and a key is convenient to insert into the core hole.

Preferably, the upper portion of the connecting body is provided with a lock tongue, the lock tongue is installed in a groove which is formed in the connecting body and matched with the groove, a spring is arranged between the lock tongue and the lock body, and the spring enables the lock tongue to be conveniently and rapidly moved out of and moved into the groove.

Preferably, the lower part of the connector is provided with a safety block, the safety block is arranged in a block groove which is formed in the connector and matched with the connector, and the block groove limits the safety block, so that the safety block can stably enter and exit from the block groove.

Preferably, the lock hole is formed in the lock cylinder, the lock hole matched with the lock cylinder is formed in the connecting portion, the lock cylinder is connected with the connecting portion in a sliding mode, the connecting portion is fixed with the safety button, so that the door lock can be controlled by inserting a key into the lock hole to rotate the connecting portion in the lock hole outside the door, and meanwhile, the door lock can be controlled by rotating the safety button inside the door.

Preferably, the vertical setting of inserted block, set up in the connecting portion with the bar hole of inserted block looks adaptation, the inside hole of seting up with connecting rod looks adaptation of lock body sets up the hole inside the lock body and is convenient for carry on spacingly to the connecting rod, better improvement the stability when the connecting rod rotates.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a first perspective view of the present invention;

FIG. 2 is a second perspective view of the present invention;

FIG. 3 is a schematic perspective view of the blocking structure, the lock cylinder, the connecting portion and the safety button of the present invention;

fig. 4 is an enlarged structural view of a portion a in fig. 3 according to the present invention.

In the figure: 1. a lock body; 101. installing a pipe; 102. mounting holes; 103. a square hole; 2. a linker; 201. A latch bolt; 202. a safety block; 3. a lock cylinder; 301. a connecting portion; 302. a safety button; 4. inserting a block; 401. a rack; 402. a gear; 403. a limiting rod; 404. a connecting rod; 405. a limiting hole; 406. a baffle plate; 407. a knob.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, 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 accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1, in the drawing, a connecting body 2 is arranged on one side of a lock body 1, a mounting structure is arranged on the lock body 1, a lock core 3 is arranged on the lower portion of the lock body 1, the lock body 1 is shaped like a cuboid, a linkage structure for controlling a door lock is arranged in the lock body 1 to control the operation of the door lock, it should be noted that the linkage structure is the prior art, so the working principle of the linkage structure is not explained much here, the mounting structure comprises a square hole 103 formed on the lock body 1, the square hole 103 is convenient for inserting a square core, the square core is used for connecting handles on front and back panels, mounting pipes 101 are arranged above and below the square hole 103, the mounting structure further comprises mounting holes 102 symmetrically formed on two sides of the square hole 103, a core hole matched with the lock core 3 is formed on the lower portion of the lock body 1, the mounting holes 102 are symmetrically formed on two sides of the core hole, a lock tongue 201 is arranged on the upper portion of the connecting body 2, the lock tongue 201 is mounted in a matched groove formed on the connecting body 2, a spring is arranged between the bolt 201 and the lock body 1, a safety block 202 is arranged on the lower portion of the connector 2, the safety block 202 is installed in a matched block groove formed in the connector 2, and a lock hole is formed in the lock cylinder 3.

Referring to fig. 2, in the figure, a lock cylinder 3 is arranged on the lower portion of a lock body 1, a safety button 302 is arranged at one end of the lock cylinder 3, the safety button 302 is connected with a connecting portion 301, a cylinder hole matched with the lock cylinder 3 is formed in the lower portion of the lock body 1, mounting holes 102 are symmetrically formed in two sides of the cylinder hole, a lock tongue 201 is arranged on the upper portion of a connecting body 2, the lock tongue 201 is arranged in a groove matched with the connecting body 2, a spring is arranged between the lock tongue 201 and the lock body 1, and the spring is controlled by a linkage structure so that the lock tongue 201 can stably move in and out of the groove.

Referring to fig. 3, a connecting portion 301 is arranged in the middle of a lock cylinder 3, the connecting portion 301 is slidably connected with the lock cylinder 3, a mounting hole 102 is arranged in the middle of the lower portion of the lock cylinder 3, the mounting hole 102 is matched with a mounting hole 102 arranged in the lower portion of a connecting body 2, the lock cylinder 3 is convenient to fix, a safety button 302 is arranged at one end of the lock cylinder 3, the safety button 302 is fixed to the connecting portion 301, a blocking structure is arranged on the connecting portion 301, the blocking structure comprises an insert block 4 inserted into the connecting portion 301, a rack 401 is arranged on one side of the upper portion of the insert block 4, the rack 401 is fixed to the insert block 4, a gear 402 is meshed with one side of the rack 401, blocking pieces 406 are symmetrically arranged at the upper end and the lower end of the rack 401, and the blocking pieces 406 limit the distance of the insert block 4 moving up and down.

Referring to fig. 4, a limiting rod 403 is disposed on one side of a gear 402, the limiting rod 403 is fixed to the gear 402, a connecting rod 404 is disposed on the other side of the gear 402, a limiting hole 405 matched with the limiting rod 403 is formed in an insert block 4, the limiting hole 405 is vertically formed, a knob 407 is disposed at one end of the connecting rod 404, the knob 407 is fixed to the connecting rod 404, a lock hole is formed in the lock cylinder 3, a lock hole matched with the lock cylinder 3 is formed in the connecting portion 301, the lock cylinder 3 is slidably connected to the connecting portion 301, the connecting portion 301 is fixed to a safety button 302, the insert block 4 is vertically disposed, a strip-shaped hole matched with the insert block 4 is formed in the connecting portion 301, a hole matched with the connecting rod 404 is formed in the lock body 1, it should be noted that the square hole 103, the mounting pipe 101, the mounting hole 102, the lock cylinder 3, the lock tongue 201 and the safety block 202 are prior art, so the working principle thereof is not explained herein, when using this lock, at first with this lock and positive antipode board, handle and door are connected through mounting hole 102 and installation pipe 101, debug this lock and can use, when in the door, hold knob 407 and twist connecting rod 404, connecting rod 404 rotates and drives gear 402 and rotate, make gear 402 drive rack 401 reciprocate, rack 401 drives inserted block 4 and rises or descend, this moment, gag lever post 403 is at spacing downthehole 405 internal rotation, separation blade 406 carries on spacingly to the position of inserted block 4, knob 407 has been avoided rotating too much, when at home night, can insert in connecting portion 301 with this inserted block 4.

The present embodiment has been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.

Claims

1. The utility model provides a security door lock, includes lock body (1), its characterized in that: a connecting body (2) is arranged on one side of the lock body (1), and an installation structure is arranged on the lock body (1);

a lock cylinder (3) is arranged at the lower part of the lock body (1), and a connecting part (301) is arranged in the middle of the lock cylinder (3); one end of the lock core (3) is provided with a safety button (302);

a blocking structure is arranged on the connecting part (301);

the blocking structure comprises an inserting block (4) inserted into the connecting part (301), a rack (401) is arranged on one side of the upper part of the inserting block (4), a gear (402) is meshed on one side of the rack (401), and blocking pieces (406) are symmetrically arranged at the upper end and the lower end of the rack (401);

a limiting rod (403) is arranged on one side of the gear (402), and a connecting rod (404) is arranged on the other side of the gear (402);

the insert block (4) is provided with a limiting hole (405) matched with the limiting rod (403), and one end of the connecting rod (404) is provided with a knob (407).

2. A security door lock according to claim 1, wherein: the lock body (1) is cuboid in shape, and a linkage structure for controlling the door lock is arranged inside the lock body (1).

3. A security door lock according to claim 1, wherein: the mounting structure comprises a square hole (103) formed in the lock body (1), and mounting pipes (101) are arranged above and below the square hole (103).

4. A security door lock according to claim 1, wherein: the mounting structure further comprises mounting holes (102) symmetrically formed in two sides of the square hole (103), a core hole matched with the lock core (3) is formed in the lower portion of the lock body (1), and the mounting holes (102) are symmetrically formed in two sides of the core hole.

5. A security door lock according to claim 1, wherein: the lock is characterized in that a lock tongue (201) is arranged on the upper portion of the connecting body (2), the lock tongue (201) is installed in a groove which is formed in the connecting body (2) and is matched with the groove, and a spring is arranged between the lock tongue (201) and the lock body (1).

6. A security door lock according to claim 1, wherein: the lower part of the connecting body (2) is provided with a safety block (202), and the safety block (202) is arranged in a matched block groove formed in the connecting body (2).

7. A security door lock according to claim 1, wherein: the lock is characterized in that a lock hole is formed in the lock cylinder (3), a lock hole matched with the lock cylinder (3) is formed in the connecting portion (301), the lock cylinder (3) is connected with the connecting portion (301) in a sliding mode, and the connecting portion (301) is fixed with the safety button (302).

8. A security door lock according to claim 1, wherein: the vertical setting of inserted block (4), set up in connecting portion (301) the bar hole with inserted block (4) looks adaptation, the hole with connecting rod (404) looks adaptation is seted up to lock body (1) inside.