CN213953256U - Cat eye opening mechanism is prevented to rotation type lock handle - Google Patents
Cat eye opening mechanism is prevented to rotation type lock handle Download PDFInfo
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- CN213953256U CN213953256U CN202022672528.7U CN202022672528U CN213953256U CN 213953256 U CN213953256 U CN 213953256U CN 202022672528 U CN202022672528 U CN 202022672528U CN 213953256 U CN213953256 U CN 213953256U
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- door lock
- knob
- lock handle
- handle
- cat eye
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Abstract
The utility model provides a cat eye opening mechanism is prevented to rotation type lock handle, including the lock handle with set up knob switch subassembly and the locking subassembly in the lock handle, wherein: the door lock handle comprises a handle body 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 formed in the door lock seat; the knob switch assembly comprises a knob and a rotating column which are sequentially connected, the rotating column is movably arranged at the front end of the assembling cavity, and an external thread is arranged on a column body at the rear end of the rotating column; the locking assembly comprises a knob sleeve and a door lock square shaft which are sequentially connected, a threaded hole matched with the rotary column is formed in the front end face of the knob sleeve, the knob sleeve is movably sleeved at the rear end of the rotary column, and a reset spring is sleeved on the door lock square shaft. This rotation type lock handle prevents cat eye opening mechanism 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
Technical Field
The utility model relates to a security door lock especially relates to a cat eye opening mechanism is prevented to rotation type lock handle.
Background
At present, most of door locks popular in the market are door locks without a peep-proof function, one part of door locks with peep-proof functions are door locks with peep-proof functions, and the internal structures of handles are all connected by pins, so that the conditions that the door locks are intact and opened frequently occur, property loss is caused, and personal safety cannot be guaranteed; some intelligence lock producers have made and have prevented cat eye handle structure, but what adopt 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.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: to the defects of the prior art, a peephole opening preventing mechanism of a rotary door lock handle 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 mechanism is prevented to rotation type lock handle, including the lock handle with set up in knob switch subassembly and locking subassembly in the lock handle, wherein:
the door lock handle comprises a handle body 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 formed in the door lock seat;
the knob switch assembly comprises a knob and a rotating column which are sequentially connected, the rotating column is movably arranged at the front end of the assembling cavity, and an external thread is arranged on a rear end column body of the rotating column;
the locking subassembly is including the knob cover and the lock square shaft that connect gradually, the preceding terminal surface of knob cover seted up with column spinner matched with screw hole, knob cover movable sleeve is located the rear end of column spinner, the epaxial cover of lock square is equipped with reset spring.
Furthermore, on the rotation type door lock handle cat eye opening preventing mechanism, the knob is connected with the front end of the rotation column through a fixed pin shaft.
Furthermore, on the rotation type door lock handle cat eye opening preventing mechanism, the middle part of the rotation column is provided with a limiting bulge along the peripheral wall of the rotation column, and the limiting bulge is positioned on one side of the external thread.
Furthermore, on the rotation type door lock handle cat eye opening preventing mechanism, a plurality of anti-skidding grooves are arranged on the periphery of the knob at intervals.
Furthermore, on the rotation type door lock handle cat eye opening preventing mechanism, a plurality of guide rails which are arranged along the axial direction of the assembly cavity are arranged on the inner side wall of the front end of the assembly cavity at intervals.
Further preferably, on the rotation type door lock handle cat eye opening preventing mechanism, a plurality of sliding grooves matched with the guide rails are formed in the outer side wall of the knob sleeve at intervals.
Furthermore, on the rotation type door lock handle cat eye opening preventing mechanism, the knob sleeve is connected with the door lock square shaft in a welding mode.
Furthermore, on the rotation type door lock handle cat eye opening preventing mechanism, the far end of the return spring is connected with a limit stop ring arranged at the rear end of the assembly cavity in an abutting mode.
Further preferably, on the mechanism for preventing the peephole opening of the rotary door lock handle, a limit pin is arranged at the rear end of the door lock square shaft and is positioned at the rear side of the limit stop ring.
Furthermore, on the rotation type door lock handle cat eye opening preventing mechanism, 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 opening mechanism is prevented to rotation type lock handle, through set up in the lock seat can stretch out with the indented lock square shaft, stretch out the lock seat outside through the lock square shaft on the knob switch subassembly control locking subassembly and be connected with interior apron and realize pulling the handle body and open the door, and contract into in the lock seat through the lock square shaft and break away from with interior apron, pull the idle structure of handle body and 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 view of the overall structure of a mechanism for preventing opening of a peephole of a rotary door lock handle of the present invention;
fig. 2 is a schematic view of an assembly front view structure of a knob switch assembly and a locking assembly in the peephole preventing mechanism of the rotary door lock handle of the present invention;
fig. 3 is a schematic view of an assembled three-dimensional structure of a knob switch assembly and a locking assembly in the peephole preventing mechanism of the rotary door lock handle of the present invention;
fig. 4 is a schematic view of the overall structure of a knob switch assembly in the peephole preventing mechanism of the rotary door lock handle of the present invention;
fig. 5 is a schematic cross-sectional structural view of a knob switch assembly in the peephole preventing mechanism of the rotary door lock handle of the present invention;
fig. 6 is a schematic view of the overall structure of the locking assembly in the anti-peep hole opening mechanism of the rotary door lock handle of the present invention;
FIG. 7 is a schematic cross-sectional view of a locking assembly of the anti-peep hole opening mechanism of a rotary door lock handle of the present invention;
wherein the reference symbols are:
10-door lock handle, 11-handle body, 12-door lock seat, 13-guide rail, 14-limit stop ring and 15-annular clamping groove;
20-knob switch assembly, 21-knob, 22-rotary column, 23-fixed pin shaft, 24-limit protrusion and 25-anti-slip groove;
30-locking component, 31-knob sleeve, 32-threaded hole, 33-sliding groove, 34-door lock square shaft, 35-return spring and 36-limit pin.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings.
In some embodiments, as shown in fig. 1 and fig. 2, a mechanism for preventing peep hole opening of a rotary door lock handle is provided, which includes a door lock handle 10, and a rotary switch assembly 20 and a locking assembly 30 disposed in the door lock handle 10, where the door lock handle 10 is a main structure of a door lock, and the rotary switch assembly 20 and the locking assembly 30 in the door lock handle 10 are opening mechanisms of the door lock, and are used for controlling opening or locking of the door lock.
In one embodiment, as shown in fig. 1, the door lock handle 10 includes a handle body 11 and a door lock base 12 vertically connected to an upper portion of the handle body 11, the handle body 11 and the door lock base 12 are made of aluminum alloy or aluminum material, and an assembly cavity penetrating front and back is formed inside the door lock base 12; a plurality of guide rails 13 which are axially arranged are arranged on the inner side wall of the front end of the assembly cavity at intervals, and the knob sleeve 31 is in limited sliding connection with the inner side wall of the front end of the assembly cavity; and the rear end of the door lock base 12 is provided with an annular clamping groove 15 for installing a clamping ring.
In one embodiment, as shown in fig. 2, 3, 4 and 5, the knob switch assembly 20 includes a knob 21 and a rotary column 22 connected in sequence, the rotary column 22 is movably disposed at the front end of the assembly cavity, and an external thread is disposed on a rear end column of the rotary column 22, the knob 21 is manually controlled to rotate clockwise or counterclockwise, the rotary column 22 is synchronously driven to rotate clockwise or counterclockwise, and the external thread disposed on the rear end column drives the locking assembly 30 to extend or retract.
In one embodiment, as shown in fig. 2, 3, 6 and 7, the locking assembly 30 includes a knob sleeve 31 and a door lock square shaft 34, which are sequentially connected, the knob sleeve 31 and the door lock square shaft 34 are coaxially welded, a threaded hole 32 matching with the rotary column 22 is formed in a front end surface of the knob sleeve 31, the knob sleeve 31 is movably sleeved on a rear end of the rotary column 22, and a return spring 35 is sleeved on the door lock square shaft 34. When the knob 21 is rotated, 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 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 one embodiment, as shown in fig. 1, 2, 3, 4 and 5, the knob 21 is partially embedded in the front end of the assembly cavity, a plurality of anti-slip grooves 25 are spaced on the circumference of the knob 21 extending out of the assembly cavity to facilitate the indoor resident to rotate the knob 21, and the rear end of the knob 21 is embedded in the front end of the rotary column 22 and is connected and fixed by the fixing pin 23.
In one embodiment, as shown in fig. 4 and 5, the middle of the rotary column 22 is provided with a limiting protrusion 24 along the outer peripheral wall thereof, the limiting protrusion 24 is located at a position on one side of the external thread, the limiting protrusion 24 is integrally cast on the rotary column 22, and the limiting protrusion 24 is arranged corresponding to the side end surface of the knob sleeve 31 to prevent the door lock square shaft 34 from being excessively extended when the rotary column 22 is screwed into the threaded hole 32, thereby achieving a certain limiting protection effect.
In one embodiment, as shown in fig. 1, 2 and 3, the inner side wall of the front end of the assembly cavity is provided with a plurality of guide rails 13 arranged along the axial direction of the assembly cavity at intervals, and the knob sleeve 31 is in limit sliding connection with the inner side wall of the front end of the assembly cavity. Specifically, in the present embodiment, a plurality of sliding grooves 33 are spaced apart from each other on the outer side wall of the knob sleeve 31, and the sliding grooves 33 and the guiding rails 13 are preferably arranged in three groups at intervals in the circumferential direction. By providing the corresponding guide rail 13 and the slide groove 33, the knob sleeve 31 can be linearly displaced in the axial direction thereof by being controlled by the knob 21.
In one embodiment, as shown in fig. 6 and 7, the distal end of the return spring 35 is connected to the limit stop ring 14 disposed at the rear end of the assembly cavity in an abutting manner, 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 one embodiment, as shown in fig. 6 and 7, 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 side 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.
This cat eye opening mechanism is prevented to rotation type lock handle, can stretch out and the door lock square shaft 34 of indentation through setting up in lock seat 12, stretch out the 12 outsides of lock seat and be connected with interior apron through the lock square shaft 34 on the knob switch subassembly 20 control locking subassembly 30 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 structure of handle body 11 idle running and avoid the thief to utilize the cat eye of burglary-resisting door to catch on handle body 11 and open the door, the security that has improved the lock.
The present invention has been described in detail with reference to the specific embodiments, but the present invention is only by way of example and is not limited to the specific embodiments described above. Any equivalent modifications and substitutions to those skilled in the art are intended to be within the scope of the present invention. Accordingly, variations and modifications in equivalents may be made without departing from the spirit and scope of the invention, which is intended to be covered by the following claims.
Claims (10)
1. The utility model provides a cat eye opening mechanism is prevented to rotation type lock handle which characterized in that, includes lock handle (10) and set up in knob switch subassembly (20) and locking subassembly (30) in lock handle (10), wherein:
the door lock handle (10) comprises a handle body (11) and a door lock seat (12) vertically connected with the upper part of the handle body (11), and an assembly cavity which is through from front to back is formed in the door lock seat (12);
the knob switch assembly (20) comprises a knob (21) and a rotating column (22) which are sequentially connected, the rotating column (22) is movably arranged at the front end of the assembling cavity, and an external thread is arranged on a rear end column body of the rotating column (22);
locking subassembly (30) including knob cover (31) and the lock square shaft (34) that connect gradually, the preceding terminal surface of knob cover (31) seted up with swivel post (22) matched with screw hole (32), knob cover (31) movable sleeve is located the rear end of swivel post (22), the cover is equipped with reset spring (35) on lock square shaft (34).
2. A rotary door lock handle anti-peep hole opening mechanism according to claim 1, characterized in that the knob (21) is connected to the front end of the rotary post (22) by means of a fixed pin (23).
3. A rotary door lock handle cat eye opening prevention mechanism as claimed in claim 1 wherein the center of the rotary post (22) is provided with a limit protrusion (24) along its outer peripheral wall, said limit protrusion (24) being located at a position on the side of the external thread.
4. The mechanism as claimed in claim 1, wherein the knob (21) has a plurality of anti-slip grooves (25) spaced around the circumference thereof.
5. A rotary door lock handle anti-peep hole opening mechanism according to claim 1, characterized in that the inner side wall of the front end of the assembly chamber is provided at intervals with a plurality of guide rails (13) arranged axially along it.
6. The mechanism as claimed in claim 5, wherein the knob sleeve (31) has a plurality of spaced sliding grooves (33) on its outer side for engaging with the guide rails (13).
7. The swing door lock handle anti-peep hole opening mechanism according to claim 1, characterized in that the knob sleeve (31) is welded to the door lock square shaft (34).
8. A swing door lock handle anti-peep hole opening mechanism according to claim 1, characterized in that 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 chamber.
9. The rotary door lock handle anti-peep hole opening mechanism according to claim 8, characterized in that the rear end of the door lock square shaft (34) is provided with a limit pin (36), and the limit pin (36) is located at the rear side of the limit stop ring (14).
10. The swing door lock handle cat eye opening prevention mechanism according to claim 1 wherein the rear end of the door lock housing (12) is provided with a ring groove (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022672528.7U CN213953256U (en) | 2020-11-18 | 2020-11-18 | Cat eye opening mechanism is prevented to rotation type lock handle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022672528.7U CN213953256U (en) | 2020-11-18 | 2020-11-18 | Cat eye opening mechanism is prevented to rotation type lock handle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213953256U true CN213953256U (en) | 2021-08-13 |
Family
ID=77211192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022672528.7U Active CN213953256U (en) | 2020-11-18 | 2020-11-18 | Cat eye opening mechanism is prevented to rotation type lock handle |
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| Country | Link |
|---|---|
| CN (1) | CN213953256U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114737822A (en) * | 2022-04-28 | 2022-07-12 | *** | Multifunctional aluminum alloy door and window handle for preventing children from opening |
-
2020
- 2020-11-18 CN CN202022672528.7U patent/CN213953256U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114737822A (en) * | 2022-04-28 | 2022-07-12 | *** | Multifunctional aluminum alloy door and window handle for preventing children from opening |
| CN114737822B (en) * | 2022-04-28 | 2023-08-15 | 长沙市海宇门窗有限责任公司 | Multifunctional aluminum alloy door and window handle for preventing children from opening |
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