CN216043101U - Worm type back locking mechanism of door lock - Google Patents
Worm type back locking mechanism of door lock Download PDFInfo
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- CN216043101U CN216043101U CN202122401987.6U CN202122401987U CN216043101U CN 216043101 U CN216043101 U CN 216043101U CN 202122401987 U CN202122401987 U CN 202122401987U CN 216043101 U CN216043101 U CN 216043101U
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- back locking
- worm
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Abstract
The utility model discloses a worm type back locking mechanism of a door lock, which comprises an inner door handle and an outer door handle, wherein the inner door handle is rotatably arranged on an inner panel, the outer door handle is rotatably arranged on an outer panel, and the inner door handle and the outer door handle are connected through a square shaft; the method is characterized in that: the door inner handle is provided with a back locking assembly, the door outer handle is provided with a locking assembly, and the back locking assembly is in linkage connection with the locking assembly through a rotating rod; the back locking assembly comprises a back locking worm connected with the rotating rod and a back locking driving piece driving the back locking worm to rotate, the back locking driving piece is arranged in the door inner handle in a sliding mode, and one end portion of the back locking driving piece is matched with spiral teeth of the back locking worm; only the back locking driving piece is pressed, one end part of the back locking driving piece extrudes the spiral teeth and drives the back locking worm to drive the rotating rod to rotate, and the locking component is driven by the rotating rod to lock the door outer handle; the back locking operation is simplified; the operation mode of back locking is simplified; simple structure and simple appearance.
Description
Technical Field
The utility model relates to the technical field of door locks, in particular to a worm type back locking mechanism of a door lock.
Background
The door lock is a commonly used door protection device for preventing illegal invasion, and generally comprises a lock body, an inner door handle and an outer door handle which are arranged inside and outside a door, and a back locking mechanism; the door lock back locking mechanism is an internal door lock mechanism arranged for improving indoor privacy; the back locking mechanism of the existing door lock is usually arranged on the door lock independently from the door handle in a split manner, and can occupy the independent space of the door lock, so that the structure is complex and the appearance of the door lock is influenced; in addition, the existing back locking mechanism mostly adopts a knob type operation mode, and has the problem of unchanged operation.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a worm type back locking mechanism of a door lock.
In order to achieve the purpose, the utility model provides the following technical scheme:
a worm type back locking mechanism of a door lock comprises an inner door handle and an outer door handle, wherein the inner door handle is rotatably arranged on an inner panel, the outer door handle is rotatably arranged on an outer panel, and the inner door handle and the outer door handle are connected through a square shaft; the door inner handle is provided with a back locking assembly, the door outer handle is provided with a locking assembly, and the back locking assembly is in linkage connection with the locking assembly through a rotating rod;
the back locking assembly comprises a back locking worm connected with the rotating rod and a back locking driving piece driving the back locking worm to rotate, the back locking driving piece is arranged in the door inner handle in a sliding mode, and one end portion of the back locking driving piece is matched with spiral teeth of the back locking worm;
when the counter lock driving piece is pressed, one end part of the counter lock driving piece extrudes the spiral teeth and drives the counter lock worm to drive the rotating rod to rotate, so that the locking assembly is driven to limit the rotation of the outer door handle.
The utility model further provides that: an upper driving rod and a lower driving rod are arranged at one end of the back locking driving piece at intervals, wherein the upper driving rod is matched with the upper end face of the spiral tooth, and the lower driving rod is matched with the lower end face of the spiral tooth; the other end of the handle penetrates out of the inner handle of the door and is provided with an anti-locking button.
The utility model further provides that: and the side wall of the inner door handle is provided with a back locking window for the back locking button to move up and down.
The utility model further provides that: the locking assembly comprises a square shaft sleeve, a locking cam and a locking ball matched with the locking cam, one end of the square shaft sleeve is fixedly connected with the door outer handle, and the other end of the square shaft sleeve penetrates through a locking seat of the outer panel to be connected with the square shaft;
the locking cam is rotatably arranged in the square shaft sleeve, and one end part of the locking cam is connected with the rotating rod;
when the rotating rod drives the locking cam to rotate, the locking cam enables the locking ball to extrude outwards, and a part of the locking ball penetrates through the ball hole of the square shaft sleeve and is arranged in the locking groove of the locking seat.
The utility model further provides that: the locking cam is provided with two cam surfaces matched with the locking balls, and the cam surfaces are symmetrically arranged on the locking cam.
The utility model further provides that: the other end of the locking cam is connected with the lock cylinder.
The utility model has the beneficial effects that: the back locking assembly and the locking assembly of the door lock are respectively arranged on the door inner handle and the door outer handle, so that the installation space is saved, and the structure of the door lock is simplified; the door lock is simpler in structure and simpler in appearance; when the door lock is operated in a reverse locking mode, the door lock only needs to be pressed to enable the reverse locking driving piece to slide up and down on the inner door handle, one end of the reverse locking driving piece extrudes the spiral teeth to drive the reverse locking worm to drive the rotating rod to rotate, and the rotating rod drives the locking assembly to enable the locking assembly to limit the outer door handle to rotate; therefore, people cannot open the door by rotating the door outer handle or the door inner handle; the existing door lock is replaced by the door lock, and the back locking operation is carried out through rotating a knob, so that the operation mode of back locking is simplified; and the structure of the door lock back locking mechanism is more stable.
Drawings
Fig. 1 is a schematic structural view of a rack bar type back locking mechanism of a door lock according to the present invention;
FIG. 2 is a schematic structural view of a door lock with a square shaft removed, showing a rack type lock mechanism of the present invention;
FIG. 3 is a schematic view of the inner door handle of the rack type locking mechanism of the door lock according to the present invention;
FIG. 4 is an installation view of the back locking assembly of the rack type back locking mechanism of the door lock in the door inner handle according to the present invention;
FIG. 5 is a schematic view of the back locking assembly of the rack back locking mechanism of the door lock of the present invention;
FIG. 6 is a schematic view of the structure of the outside handle of the rack type locking mechanism of the door lock of the present invention;
FIG. 7 is a schematic structural view of an outer panel of a rack type lock reversing mechanism of a door lock according to the present invention;
FIG. 8 is an installation view of the locking assembly and the key cylinder of the rack type lock reversing mechanism of the door lock of the present invention;
FIG. 9 is a view showing the engagement of the locking cam and the locking ball of the rack type lock reversing mechanism of the door lock according to the present invention;
fig. 10 is a schematic view showing a structure of a locking cam of a rack type unlocking mechanism of a door lock according to the present invention;
description of reference numerals: 1. an inner door handle; 11. locking the window reversely; 2. an exterior door handle; 3. a square shaft; 4. a back locking assembly; 41. a back locking drive; 411. an upper drive rod; 412. a lower drive rod; 413. a back locking button; 42. locking the worm reversely; 421. helical teeth; 5. a locking assembly; 51. a locking cam; 511. a cam surface; 52. locking the ball; 53. a square shaft sleeve; 531. a ball hole; 6. rotating the rod; 7. a lock cylinder; 8. an inner panel; 9. an outer panel; 91. a locking seat; 911. a locking groove.
Detailed Description
A worm type back locking mechanism of a door lock according to the present invention will be described in further detail with reference to fig. 1 to 10.
A worm type back locking mechanism of a door lock comprises an inner door handle 1 and an outer door handle 2, wherein the inner door handle 1 is rotatably arranged on an inner panel 8, the outer door handle 2 is rotatably arranged on an outer panel 9, the inner door handle 1 and the outer door handle 2 are connected through a square shaft 3, the inner panel 8 is fixed on an inner door panel, and the outer panel 9 is fixed on an outer door panel; the door inner handle 1 is provided with a back locking assembly 4, the door outer handle 2 is provided with a locking assembly 5, and the back locking assembly 4 is in linkage connection with the locking assembly 5 through a rotating rod 6; the back locking assembly 4 comprises a back locking worm 42 connected with the rotating rod 6 and a back locking driving piece 41 for driving the back locking worm 42 to rotate, the back locking driving piece 41 is arranged in the door inner handle 1 in a sliding mode, and one end portion of the back locking driving piece 41 is matched with the spiral teeth 421 of the back locking worm 42;
when the door lock is operated in a reverse locking mode, only the reverse locking driving piece 41 needs to be pressed, one end of the reverse locking driving piece 41 extrudes the spiral teeth 421 and drives the reverse locking worm 42 to drive the rotating rod 6 to rotate, and therefore the locking assembly 5 is driven to limit the rotation of the outer door handle 2; therefore, people cannot open the door by rotating the door outer handle 2 or the door inner handle 1; the existing door lock is replaced by the door lock, and the back locking operation is carried out through rotating a knob, so that the operation mode of back locking is simplified; the structure of the door lock back locking mechanism is more stable;
when the anti-locking mechanism unlocks the door outer handle 2, the locking of the door outer handle 2 can be released only by reversely pushing the anti-locking driving piece 41 and reversely rotating the anti-locking worm 42, so that the operation is very convenient; in addition, the back locking assembly 4 and the locking assembly 5 of the door lock are respectively arranged on the door inner handle 1 and the door outer handle 2, so that the installation space is saved, and the structure of the door lock is simplified; the door lock is simpler in structure and simpler in appearance.
An upper driving rod 411 and a lower driving rod 412 are arranged at an end of the reverse locking driving member 41 at intervals, wherein the upper driving rod 411 is matched with the upper end surface of the spiral tooth 421, and the lower driving rod 412 is matched with the lower end surface of the spiral tooth 421; the other end penetrates out of the inner door handle 1 and is provided with a back locking button 413; wherein, the side wall of the inner door handle 1 is provided with an anti-locking window 11 for the anti-locking button 413 to move up and down;
when the back locking operation is carried out, only the back locking button 413 in the back locking window 11 needs to be pressed downwards, so that the upper driving rod 411 extrudes the upper end surface of the spiral teeth 421, the back locking worm 42 is driven to rotate, the locking assembly 5 is driven to lock the door outer handle 2, and the operation is convenient; when the unlocking operation is performed, only the anti-locking button 413 needs to be pushed upwards, so that the lower driving rod 412 extrudes the lower end face of the spiral tooth 421, and the anti-locking worm 42 is driven to rotate; and unlocking is realized.
The locking assembly 5 comprises a square shaft sleeve 53, a locking cam 51 and a locking ball 52 matched with the locking cam 51, one end part of the square shaft sleeve 53 is fixedly connected with the door outer handle 2, and the other end part of the square shaft sleeve passes through a locking seat 91 of the outer panel 9 to be connected with the square shaft 3; the locking cam 51 is rotatably arranged in the square shaft sleeve 53, and one end part of the locking cam 51 is connected with the rotating rod 6; when the rotating lever 6 rotates the locking cam 51, the locking cam 51 causes the locking balls 52 to be pressed outward, so that a portion of the locking balls 52 is placed in the locking groove 911 of the locking seat 91 through the ball hole 531 of the square shaft sleeve 53; the door outer handle 2 is locked on the locking seat 91, and the rotation of the door outer handle 2 on the outer panel 9 is limited; so that people can not rotate the door outer handle 2, and can not open the door; meanwhile, the inner door handle 1 is connected with the outer door handle 2 through the square shaft 3, and the inner door handle 1 is also locked.
Two cam surfaces 511 matched with the locking balls 52 are arranged on the locking cam 51, and the cam surfaces 511 are symmetrically arranged on the locking cam 51; when the rotating lever 6 rotates the locking cam 51, the cam surface 511 presses the locking ball 52 outward.
The other end of the locking cam 51 is connected with the lock cylinder 7, so that a door lock key can be used to insert the lock cylinder 7 from the outside of the door, and the locking cam 51 is rotated to perform the back locking or unlocking operation.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.
Claims (6)
1. A worm type back locking mechanism of a door lock comprises an inner door handle and an outer door handle, wherein the inner door handle is rotatably arranged on an inner panel, the outer door handle is rotatably arranged on an outer panel, and the inner door handle and the outer door handle are connected through a square shaft; the method is characterized in that: the door inner handle is provided with a back locking assembly, the door outer handle is provided with a locking assembly, and the back locking assembly is in linkage connection with the locking assembly through a rotating rod;
the back locking assembly comprises a back locking worm connected with the rotating rod and a back locking driving piece driving the back locking worm to rotate, the back locking driving piece is arranged in the door inner handle in a sliding mode, and one end portion of the back locking driving piece is matched with spiral teeth of the back locking worm;
when the counter lock driving piece is pressed, one end part of the counter lock driving piece extrudes the spiral teeth and drives the counter lock worm to drive the rotating rod to rotate, so that the locking assembly is driven to limit the rotation of the outer door handle.
2. The worm type back locking mechanism of door lock as claimed in claim 1, wherein: an upper driving rod and a lower driving rod are arranged at one end of the back locking driving piece at intervals, wherein the upper driving rod is matched with the upper end face of the spiral tooth, and the lower driving rod is matched with the lower end face of the spiral tooth; the other end of the handle penetrates out of the inner handle of the door and is provided with an anti-locking button.
3. The worm type back locking mechanism of door lock as claimed in claim 2, wherein: and the side wall of the inner door handle is provided with a back locking window for the back locking button to move up and down.
4. A worm type lock mechanism of a door lock according to claim 1, 2 or 3, wherein: the locking assembly comprises a square shaft sleeve, a locking cam and a locking ball matched with the locking cam, one end of the square shaft sleeve is fixedly connected with the door outer handle, and the other end of the square shaft sleeve penetrates through a locking seat of the outer panel to be connected with the square shaft;
the locking cam is rotatably arranged in the square shaft sleeve, and one end part of the locking cam is connected with the rotating rod;
when the rotating rod drives the locking cam to rotate, the locking cam enables the locking ball to extrude outwards, and a part of the locking ball penetrates through the ball hole of the square shaft sleeve and is arranged in the locking groove of the locking seat.
5. The worm type back locking mechanism of door lock as claimed in claim 4, wherein: the locking cam is provided with two cam surfaces matched with the locking balls, and the cam surfaces are symmetrically arranged on the locking cam.
6. The worm type back locking mechanism of door lock as claimed in claim 4 or 5, wherein: the other end of the locking cam is connected with the lock cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122401987.6U CN216043101U (en) | 2021-09-30 | 2021-09-30 | Worm type back locking mechanism of door lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122401987.6U CN216043101U (en) | 2021-09-30 | 2021-09-30 | Worm type back locking mechanism of door lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216043101U true CN216043101U (en) | 2022-03-15 |
Family
ID=80608049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122401987.6U Active CN216043101U (en) | 2021-09-30 | 2021-09-30 | Worm type back locking mechanism of door lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216043101U (en) |
-
2021
- 2021-09-30 CN CN202122401987.6U patent/CN216043101U/en active Active
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