CN216110120U - Rack type back locking mechanism of door lock - Google Patents
Rack type back locking mechanism of door lock Download PDFInfo
- Publication number
- CN216110120U CN216110120U CN202122405727.6U CN202122405727U CN216110120U CN 216110120 U CN216110120 U CN 216110120U CN 202122405727 U CN202122405727 U CN 202122405727U CN 216110120 U CN216110120 U CN 216110120U
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- back locking
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- 238000009434 installation Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses a rack 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 rotationally arranged on an inner panel, the outer door handle is rotationally 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 toothed frame arranged on the door inner handle in a sliding mode and a back locking gear connected with the rotating rod, wherein a back locking rack is arranged on the inner side wall of the back locking toothed frame, and the back locking gear is arranged in the back locking toothed frame and meshed with the back locking rack in the back locking toothed frame; the anti-lock gear frame is driven to rotate by driving the anti-lock gear, and the locking assembly is driven by the rotating rod to limit the rotation of the door outer handle; the back locking operation 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 rack 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 rack type back locking mechanism of a door lock.
In order to achieve the purpose, the utility model provides the following technical scheme:
a rack 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 toothed frame arranged on the door inner handle in a sliding mode and a back locking gear connected with the rotating rod, wherein a back locking rack is arranged on the inner side wall of the back locking toothed frame, and the back locking gear is arranged in the back locking toothed frame and meshed with the back locking rack in the back locking toothed frame;
when the back locking tooth frame is pushed, the sliding back locking tooth frame drives the rotating rod to rotate by driving the back locking gear, so that the locking assembly is driven to limit the rotation of the door outer handle.
The utility model further provides that: and a back locking button is arranged at one end part of the back locking toothed frame and penetrates out of the lower end face of the inner door handle.
The utility model further provides that: and the lower end surface of the inner door handle is provided with a back locking window for the back locking button to move left and right.
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 reversely locked, the reverse locking gear frame is only required to be pushed to slide on the inner door handle, and the reverse locking gear frame drives the rotating rod to rotate by driving the reverse locking gear, so that the locking assembly limits the rotation of the outer door handle; 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; meanwhile, the back locking rack is meshed with the back locking gear, and the back locking gear has a self-locking function, so that the structure of the 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 an installation view of a rotating lever of a rack type back locking mechanism of a door lock in a back locking assembly according to 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 a view of the locking assembly and key cylinder of the rack bar type lock mechanism of a door lock of the present invention in combination;
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. reversely locking the gear frame; 411. back locking the rack; 412. a back locking button; 42. a back lock gear; 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 rack bar type lock reversing mechanism of a door lock according to the present invention will be described in further detail with reference to fig. 1 to 10.
A rack 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 toothed frame 41 arranged on the door inner handle 1 in a sliding manner and a back locking gear 42 connected with the rotating rod 6, wherein a back locking rack 411 is arranged on the inner side wall of the back locking toothed frame 41, and the back locking gear 42 is arranged in the back locking toothed frame 41 and is meshed with the back locking rack 411 in the back locking toothed frame 41; when the door lock is operated reversely, the reverse locking toothed frame 41 is only required to be pushed to slide on the inner door handle 1, and the reverse locking toothed frame 41 drives the rotating rod 6 to rotate by driving the reverse locking gear 42, so that the locking assembly 5 limits 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; meanwhile, the back locking rack 411 is meshed with the back locking gear 42, so that the structure of the back locking mechanism is more stable.
When the back locking mechanism unlocks the door outer handle 2, the locking of the door outer handle 2 can be released only by pushing the back locking toothed frame 41 in the reverse direction, so that the operation is very convenient and fast; 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.
One end of the back locking toothed frame 41 is provided with a back locking button 412, and the back locking button 412 penetrates out of the back locking window 11 on the lower end face of the inner door handle 1; when the back locking or unlocking operation is carried out, only the back locking button 412 in the back locking window 11 needs to be pushed or pulled, and the operation is convenient.
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 of the square shaft sleeve 53 is fixedly connected with the door outer handle 2, and the other end 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 rack 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 toothed frame arranged on the door inner handle in a sliding mode and a back locking gear connected with the rotating rod, wherein a back locking rack is arranged on the inner side wall of the back locking toothed frame, and the back locking gear is arranged in the back locking toothed frame and meshed with the back locking rack in the back locking toothed frame;
when the back locking tooth frame is pushed, the sliding back locking tooth frame drives the rotating rod to rotate by driving the back locking gear, so that the locking assembly is driven to limit the rotation of the door outer handle.
2. The rack bar type lock reversing mechanism of a door lock according to claim 1, wherein: and a back locking button is arranged at one end part of the back locking toothed frame and penetrates out of the lower end face of the inner door handle.
3. The rack bar type lock reversing mechanism of a door lock according to claim 2, wherein: and the lower end surface of the inner door handle is provided with a back locking window for the back locking button to move left and right.
4. A rack bar type lock reversing mechanism for 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 rack bar type lock reversing mechanism of a door lock according to 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 rack bar type lock reversing mechanism of a door lock according to claim 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 |
|---|---|---|---|
| CN202122405727.6U CN216110120U (en) | 2021-09-30 | 2021-09-30 | Rack type back locking mechanism of door lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122405727.6U CN216110120U (en) | 2021-09-30 | 2021-09-30 | Rack type back locking mechanism of door lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216110120U true CN216110120U (en) | 2022-03-22 |
Family
ID=80690829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122405727.6U Active CN216110120U (en) | 2021-09-30 | 2021-09-30 | Rack type back locking mechanism of door lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216110120U (en) |
-
2021
- 2021-09-30 CN CN202122405727.6U patent/CN216110120U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240329 Address after: 528400, 7th Floor, No. 40 Dongsheng East Road, Xiaolan Town, Zhongshan City, Guangdong Province Patentee after: Guangdong Yist Hardware Technology Co.,Ltd. Country or region after: China Address before: 325000 No. 4, building 8, Zhongxuan Road, Yongxing street, Longwan District, Wenzhou City, Zhejiang Province Patentee before: WENZHOU KABINSI INTELLIGENT TECHNOLOGY Co.,Ltd. Country or region before: China |