CN214996764U

CN214996764U - Push type door lock structure capable of preventing door opening through peephole

Info

Publication number: CN214996764U
Application number: CN202121220093.0U
Authority: CN
Inventors: 黄瑞
Original assignee: Shanghai Mengxiangjia Enterprise Development Co ltd
Current assignee: Shanghai Mengxiangjia Enterprise Development Co ltd
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2021-12-03
Anticipated expiration: 2031-06-02

Abstract

The utility model provides a push type door lock structure for preventing peephole from being opened, which comprises a door lock handle, a push switch component and a locking component, wherein the door lock handle comprises a handle body, a push cylinder seat and a door lock seat vertically connected with the upper part of the handle body, and an assembly cavity which is communicated from front to back is arranged in the door lock seat; the push switch assembly comprises a button and a rotating column which are sequentially and movably arranged in the push cylinder seat, the middle part of the button is sleeved with a sliding toothed ring, and the sliding toothed ring is matched with a fixed toothed ring fixedly arranged in the push cylinder seat; the locking subassembly is including the button cover and the lock square shaft that connect gradually, and the preceding terminal surface of button cover is seted up with column spinner matched with pilot hole, and the rear end of column spinner is located to button cover movable sleeve, and the epaxial cover of lock square shaft is equipped with reset spring. This push type prevents cat eye lock structure of opening can effectively avoid the thief to utilize the cat eye hole of burglary-resisting door to catch the handle body and open the door, improves the security of lock.

Description

Push type door lock structure capable of preventing door opening through peephole

Technical Field

The utility model relates to a security door lock especially relates to a push type prevents cat eye door lock structure of opening.

Background

At present, door locks used by most residents are handle locks without a cat eye prevention function, but thieves can easily pry open doors by rotating the inner handle through the cat eye hole and pry the handles in the doors by using a long stick, and the doors can be opened through the cat eye without prying the doors outside the doors. In addition, although some intelligent lock manufacturers have made the handle structure of preventing cat eye, the adoption is pin joint, and joint strength is not high, and long-term use can cause the damage of handle structure because of local atress, influences normal use.

Therefore, in order to prevent the handle lock from being opened by a thief through the peephole, it is necessary to design a handle lock anti-peephole handle structure to overcome the above problems and avoid causing theft of cases.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: aiming at the defects in the prior art, the structure of the push type door lock capable of preventing the door from being opened by the cat eye is provided.

The utility model discloses a solve above-mentioned technical problem and adopt following technical scheme:

the utility model provides a cat eye opening door lock structure is prevented to push type, including the lock handle with set up in press switch subassembly and locking subassembly in the lock handle, wherein:

the door lock handle comprises a handle body, a pressing barrel seat and a door lock seat vertically connected with the upper part of the handle body, and an assembly cavity which is communicated with the front and the back is formed in the door lock seat;

the push switch assembly comprises a button and a rotating column which are sequentially and movably arranged in the push cylinder seat, a sliding toothed ring is sleeved in the middle of the button, the sliding toothed ring is matched with a fixed toothed ring fixedly arranged in the push cylinder seat, and the rear end of the button is abutted against the front end of the rotating column;

the locking subassembly is including the button cover and the lock square shaft that connect gradually, the preceding terminal surface of button cover seted up with column spinner matched with pilot hole, button cover movable sleeve locates the rear end of column spinner, just the epaxial cover of lock square is equipped with reset spring.

Furthermore, on the push type door lock structure for preventing the cat eye from being opened, a limit ring is arranged in the middle of the button along the circumferential direction of the button, and the limit ring is positioned at the rear side of the sliding toothed ring.

Furthermore, in the push type door lock structure for preventing the cat eye from being opened, the rear end of the button is in a conical shape and is embedded in the abutting hole on the end face of the front end of the rotary column.

Further preferably, in the push type door lock structure for preventing the cat eye from being opened, a cushion pad is provided in the abutting hole.

Furthermore, on the push type door lock structure for preventing the door from being opened by the cat eye, the middle part of the rotating column is provided with a limiting bulge along the peripheral wall of the rotating column, and the limiting bulge is positioned between the sliding toothed ring and the rotating column on two sides.

Furthermore, on the push type door lock structure for preventing the cat eye from being opened, a plurality of sliding grooves are formed in the outer side wall of the button sleeve at intervals, and the sliding grooves are matched with a plurality of sliding rails arranged on the inner side wall of the assembling cavity.

Furthermore, on the push type door lock structure for preventing the cat eye from being opened, the button sleeve is connected with the door lock square shaft through a bolt or in a welding mode.

Furthermore, on the push type door lock structure for preventing the door from being opened by the cat eye, a buffer spring is arranged in the assembly hole, and one end of the buffer spring is abutted against the rear end of the rotary column.

Furthermore, on the push type door lock structure for preventing the cat eye from being opened, the far end of the return spring is connected with a limit stop ring arranged at the rear end of the assembly cavity in a butting manner.

Further preferably, in the push type door lock structure for preventing the peep hole from being opened, a limit pin is arranged at the rear end of the door lock square shaft, and the limit pin is located at the rear position of the limit stop ring.

Furthermore, on the push type door lock structure for preventing the cat eye from being opened, the rear end of the door lock seat is provided with an annular clamping groove.

The utility model adopts the above technical scheme, compare with prior art, have following technological effect:

the utility model provides a cat eye door lock structure of opening is prevented to push type, its main technical scheme is through set up in the lock seat can stretch out with the indented lock square shaft, and adopt slip ring gear and fixed ring gear matched with mode, the lock seat outside is stretched out through the door lock square shaft on button and the slip ring gear control locking subassembly and interior apron is connected and is realized pulling the handle body and open the door, and break away from with interior apron in contracting the lock seat through the lock square shaft, the idle structure of pulling the handle body that constitutes from this can effectively avoid the thief to utilize the cat eye hole of burglary-resisting door to catch on the handle body and open the door, improve the security of lock.

Drawings

Fig. 1 is a schematic cross-sectional view of a push type door lock structure for preventing door opening by a cat eye in an idle state according to the present invention;

FIG. 2 is a schematic cross-sectional view of a locking assembly of the push-type door lock structure for preventing the door from being opened by the peep hole of the present invention;

fig. 3 is a schematic perspective view of a locking assembly in a push-type door lock structure for preventing the door from being opened by a peep hole;

FIG. 4 is a schematic structural view of a sliding toothed ring in a push-type door lock structure for preventing the door from being opened by a cat's eye according to the present invention;

FIG. 5 is a schematic structural view of a fixed ring gear in a push-type door lock structure for preventing the door from being opened by a cat's eye according to the present invention;

fig. 6 is a schematic structural view of a push type door lock for preventing the door from being opened by the peephole of the present invention in a locked state;

wherein the reference symbols are:

10-a door lock handle, 11-a handle body, 12-a pressing cylinder seat, 13-a door lock seat, 14-a limiting retaining ring and 15-an annular clamping groove;

20-push switch component, 21-knob, 22-limit ring, 23-sliding gear ring, 24-fixed gear ring, 25-buffer pad, 26-rotary column, 27-limit projection;

30-locking component, 31-knob sleeve, 32-assembly hole, 33-sliding groove, 34-door lock square shaft, 35-return spring, 36-limit pin and 37-buffer spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In some embodiments, as shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, a push type door lock structure for preventing a cat's eye from being opened is provided, which includes a door lock handle 10, and a push switch assembly 20 and a locking assembly 30 disposed in the door lock handle 10, wherein the door lock handle 10 is a main structure of the door lock, and the push switch assembly 20 and the locking assembly 30 in the door lock handle 10 are opening mechanisms of the door lock, for controlling the opening or locking of the door lock.

In some embodiments, as shown in fig. 1 and 6, the door lock handle 10 includes a handle body 11, a pressing cylinder 12, and a door lock base 13 vertically connected to an upper portion of the handle body 11, and the handle body 11, the pressing cylinder 12, and the door lock base 13 are made of aluminum alloy or aluminum material. An assembly cavity which is through from front to back is formed in the door lock base 13, and an annular clamping groove 15 for installing a clamping ring is formed in the rear end of the door lock base 13.

In some embodiments, as shown in fig. 1, 4, 5 and 6, the push switch assembly 20 includes a push button 21 and a rotary column 26 that are sequentially and movably disposed in the push cylinder base 12, a sliding toothed ring 23 is sleeved on a middle portion of the push button 21, the sliding toothed ring 23 is matched with a fixed toothed ring 24 that is fixedly disposed in the push cylinder base 12, and a rear end of the push button 21 abuts against a front end of the rotary column 26. The rotary column 26 is movably arranged at the front end of the assembly cavity, and the rotary column 26 drives the locking assembly 30 to extend or retract under the pushing of the button 21.

It should be noted that the button 21, the sliding toothed ring 23, the fixed toothed ring 24 and the rotary column 26 constitute a rotary telescopic mechanism, which is a rotary knockout structure of the conventional automatic ball-point pen, and the principle of the structure is the same, and will not be described in detail herein. Specifically, the sliding gear ring 23 is rotatably sleeved on the upper end of the button 21, and the sliding gear ring 23 and the fixed gear ring 24 are respectively provided with a ratchet structure which is matched with each other. The working principle of the rotary telescopic mechanism is as follows: after the sliding gear ring 23 slides out of the guide groove on the fixed gear ring 24 under the pressing of the button 21, the teeth of the fixed gear ring 24 slide along the inclined plane of the engaged teeth of the sliding gear ring 23 due to the action of the rear end return spring 34, so that under the action of the inclined plane, the sliding gear ring 23 rotates by an angle and then slides into the other inclined plane without the guide groove of the tooth column 46, so that the button 21 is clamped by the rotary telescopic mechanism after moving downwards to a fixed position; the button 21 is repeatedly pressed to make the sliding toothed ring 23 continue to rotate by an angle and slide again into the next guide groove of the toothed column 46, and the button 21 and the sliding toothed ring 23 thereon move upwards under the action of the return spring 49.

In some embodiments, as shown in fig. 1, 2 and 3, the locking assembly 30 includes a button sleeve 31 and a door lock square shaft 34 connected in sequence, and the button sleeve 31 is bolted or welded to the door lock square shaft 34. The front end face of the button sleeve 31 is provided with an assembling hole 32 matched with the rotary column 26, the button sleeve 31 is movably sleeved at the rear end of the rotary column 26, and the door lock square shaft 34 is sleeved with a return spring 35. When the button 21 is pressed manually, the controllable door lock square shaft 34 extends out of the door lock seat 12 and is connected with the inner covering plate to realize that the handle body 11 is pulled to open the door, and the door lock square shaft 34 is retracted into the door lock seat 12 to be separated from the inner covering plate, so that the handle body 11 is in an idle running state, the door can not be opened even if the handle body 11 is pulled, and the problem that an outsider pulls the handle body 11 to open the door through a cat eye is effectively avoided.

In some of the embodiments, as shown in fig. 1 and 6, the middle of the button 21 is provided with a retainer ring 22 along its circumference, and the retainer ring 22 is located at a rear position of the sliding gear ring 23. The retainer ring 22 is integrally formed on the button 21, and the retainer ring 22 is disposed corresponding to a side end surface of the sliding ring gear 23 to prevent the sliding ring gear 23 from falling off the button 21 and to form linkage with the button 21.

In some embodiments, as shown in fig. 1 and 6, the rear end of the button 21 is in a conical shape, and is embedded in an abutting hole on the front end surface of the rotary column 26, a buffer pad 25 is arranged in the abutting hole, the buffer pad 25 is made of rubber, and plays a certain role in buffering, so that the button 21 is prevented from being violently pressed to damage the rotary column 26, and the use comfort is improved.

In some embodiments, as shown in fig. 1 and 6, the middle of the rotating column 26 is provided with a limiting protrusion 27 along its outer peripheral wall, the limiting protrusion 27 is located between the sliding toothed ring 23 and the rotating column 26 on both sides, the limiting protrusion 27 is integrally cast on the rotating column 26, and the limiting protrusion 26 is arranged corresponding to the side end face of the knob sleeve 31 to prevent the rotating column 26 from causing the door lock square shaft 34 to be excessively extended when extending into the threaded hole 32, so as to perform a certain limiting protection function.

In some embodiments, as shown in fig. 3, the outer side wall of the button sleeve 31 is provided with a plurality of sliding grooves 33 at intervals, and the sliding grooves 33 are matched with a plurality of sliding rails (not shown in the figure) arranged on the inner side wall of the assembly cavity. Preferably, the sliding rails and the sliding grooves 33 are arranged in three groups at intervals in the circumferential direction. By providing corresponding slide rails and slide grooves 33, the knob sleeve 31 can be linearly displaced in an extending or retracting manner along the axial direction thereof under the control of the knob 21.

In other embodiments, as shown in fig. 3, a buffer spring 37 is disposed in the assembly hole 32, and one end of the buffer spring 37 abuts against the rear end of the rotary column 26 to play a role in buffering, so that when the button 21 is pressed violently, the rear end of the rotary column 26 directly impacts the button sleeve 31, and the use comfort is improved.

In other embodiments, as shown in fig. 1 and 6, the distal end of the return spring 35 is connected in abutment with a limit stop ring 14 disposed at the rear end of the assembly cavity, and the limit stop ring 14 has a certain limit function on the return spring 35, so as to keep the return spring 35 in a compressed state all the time.

In other embodiments, as shown in fig. 1 and 6, the rear end of the square shaft 34 of the door lock is provided with a limit pin 36, and the limit pin 36 is located at the rear position of the limit stop ring 14. Because the limit pin 36 is displaced to one side position of the limit stop ring 14, the limit pin can be abutted against the limit stop ring 14 when the door lock square shaft 34 is excessively retracted, and the excessive retraction of the door lock square shaft 34 is avoided.

As shown in fig. 1 and 6, the operation principle of the structure of the push type door lock for preventing the door from being opened by the cat's eye is as follows: through set up in the lock seat 12 can stretch out with the door lock square shaft 34 of indentation, and adopt slip ring gear 23 and fixed ring gear 24 to constitute rotatory rotation telescopic machanism, stretch out the lock seat 12 outside through lock square shaft 34 on the push switch subassembly 20 control locking subassembly 30 and be connected with interior apron and realize pulling handle body 11 and open the door, and break away from with interior apron in retracting lock seat 12 through lock square shaft 34, pull the idle structure of handle body 11 and avoid the thief to utilize the cat eye hole of burglary-resisting door to catch on handle body 11 and open the door, the security of door lock has been improved.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to common designs, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

finally, the above description is only a preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a push type prevents cat eye and opens door lock structure which characterized in that, includes lock handle (10) and sets up in push switch subassembly (20) and locking subassembly (30) in lock handle (10), wherein:

the door lock handle (10) comprises a handle body (11), a pressing barrel seat (12) and a door lock seat (13) vertically connected with the upper part of the handle body (11), and an assembly cavity which is communicated with the front and the back is formed in the door lock seat (13);

the push switch assembly (20) comprises a push button (21) and a rotating column (26) which are sequentially and movably arranged in the push cylinder base (12), a sliding toothed ring (23) is sleeved in the middle of the push button (21), the sliding toothed ring (23) is matched with a fixed toothed ring (24) fixedly arranged in the push cylinder base (12), and the rear end of the push button (21) is abutted against the front end of the rotating column (26);

locking subassembly (30) including button cover (31) and lock square shaft (34) that connect gradually, the preceding terminal surface of button cover (31) seted up with swivel post (26) matched with pilot hole (32), button cover (31) movable sleeve is located the rear end of swivel post (26), just the cover is equipped with reset spring (35) on lock square shaft (34).

2. The push type door lock structure for preventing cat's eye opening according to claim 1, wherein a stopper ring (22) is provided at a middle portion of the push button (21) along a circumferential direction thereof, and the stopper ring (22) is located at a rear side position of the sliding toothed ring (23).

3. The push type door lock structure for preventing cat's eye opening according to claim 1, wherein the rear end of the button (21) is tapered and is fitted in an abutting hole of the front end face of the rotary post (26).

4. The push type door lock structure for preventing cat eye opening according to claim 3, wherein a cushion (25) is disposed in the abutting hole.

5. The push type door lock structure for preventing cat eye opening according to claim 1, wherein the middle of the rotary column (26) is provided with a limiting protrusion (27) along the outer peripheral wall thereof, and the limiting protrusion (27) is located between the sliding toothed ring (23) and the rotary column (26) at both sides.

6. The structure of the door lock of claim 1, wherein the outer sidewall of the button sleeve (31) is spaced by a plurality of sliding grooves (33), and the sliding grooves (33) are engaged with a plurality of sliding rails disposed on the inner sidewall of the assembly chamber.

7. The push type door lock structure for preventing cat eye opening according to claim 1, wherein a buffer spring (37) is disposed in the fitting hole (32), and one end of the buffer spring (37) abuts against the rear end of the rotary post (26).

8. The push type door lock structure for preventing cat's eye opening in claim 1, wherein the distal end of the return spring (35) is connected in abutment with a limit stop ring (14) provided at the rear end of the assembly cavity.

9. The push type door lock structure for preventing peep hole from being opened according to claim 8, wherein a limit pin (36) is provided at the rear end of the door lock square shaft (34), and the limit pin (36) is located at the rear position of the limit stop ring (14).

10. The push type door lock structure for preventing peep hole from being opened according to claim 1, wherein the rear end of the door lock seat (13) is provided with a ring-shaped slot (15).