Door lock convenient to install

Abstract

The utility model discloses a door lock convenient to install, which comprises an inner handle and an outer handle, the inner handle is rotatably arranged on an inner base, the outer handle is rotatably arranged on an outer base, and the inner handle and the outer handle are connected through a square shaft; a clamping plate is arranged at one end of the square shaft, the clamping plate is clamped to the handle head of the outer handle, and the clamping plate is fixed through a clamping ring. The other end part of the square shaft is inserted into the square shaft sleeve of the inner handle; therefore, the linkage between the inner handle and the outer handle is realized; a jackscrew does not need to penetrate into the outer handle, and the square shaft is locked through the jackscrew; the door lock mounting process is simplified, and meanwhile, the jackscrew is effectively prevented from influencing the simplicity of the appearance of the door lock, so that the attractiveness of the door lock is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of door locks, and more specifically, it relates to a door lock that is convenient to install. Background Technique

[0002] A door lock is an essential security device for anti-theft and wind prevention. When in use, hold the grip part of the door lock handle and press down the door lock handle, so that the door lock handle rotates relative to the handle base and can drive the lock tongue in the lock body to retract into the lock body through the square shaft, realizing the unlocking of the door lock; after unlocking, the door lock handle will rotate and reset under the action of the return torsion spring;

[0003] Among them, the square shaft plays a linkage role among the door lock handle inside the door, the door lock handle outside the door, and the lock tongue when realizing the above door lock operation functions, and is a key component for the door lock to realize unlocking and locking; the square shaft is respectively connected to the door lock handle inside the door and the door lock handle outside the door through both ends, and its middle part is inserted into the lock body to realize linkage;

[0004] The end part of the square shaft of the traditional door lock is inserted into the square shaft insertion slot of the door lock handle, and the square shaft is fixedly connected to the door lock handle by a set screw passing through the set screw hole on the door lock handle and abutting against the square shaft in the insertion slot; this connection method has the problem of troublesome installation, and one end of the set screw is exposed on the outer surface of the door lock handle, affecting the appearance of the door lock. Content of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a door lock that is convenient to install.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A door lock that is convenient to install, including an inner handle and an outer handle. The inner handle is rotatably arranged on an inner base, and the outer handle is rotatably arranged on an outer base. The inner handle and the outer handle are connected by a square shaft; one end of the square shaft is provided with a clamping plate, and the clamping plate is clamped on the handle head of the outer handle and fixed by a snap ring; the other end of the square shaft is inserted into the square shaft sleeve of the inner handle.

[0008] The utility model is further provided: the middle part of the clamping plate is provided with a clamping hole adapted to the handle head, and a clamping block adapted to the clamping groove on the handle head of the outer handle is arranged in the middle of the clamping hole;

[0009] The clamping block is matched with the clamping groove to clamp the clamping plate on the handle head.

[0010] The utility model is further provided: a reinforcing sleeve is sleeved on one end of the square shaft close to the clamping plate. After the clamping plate is clamped on the handle head, the reinforcing sleeve is placed inside the handle head.

[0011] The present utility model is further configured as follows: An anti-lock component is installed inside the inner door handle, and a locking component is installed inside the outer door handle;

[0012] The anti-lock component includes a rotating member and an anti-lock button. A threaded groove is provided on the outer side wall of the rotating member. The anti-lock button is slidably arranged on the inner door handle, and a pressing head at one end thereof is matched with the threaded groove;

[0013] The locking component includes a locking cam and a locking post rotatably arranged inside a square shaft sleeve. One end of the linkage plate is connected to the rotating member, and the other end is connected to the locking cam;

[0014] A locking groove adapted to the locking post is provided on the outer base. The anti-lock button drives the rotating member to rotate, drives the locking cam to rotate through the linkage plate. The cam surface of the locking cam extrudes the locking post outward, so that a part of the locking post passes through the clamping groove of the outer door handle and is placed in the locking groove, locking the outer door handle on the outer base.

[0015] The present utility model is further configured as follows: Bearings are sleeved on both the upper and lower ends of the rotating member.

[0016] The present utility model is further configured as follows: An emergency unlocking member is provided on the outer door handle. One end of the emergency unlocking member is connected to the linkage plate, and an unlocking receiving hole is provided at the other end.

[0017] The beneficial effects of the present utility model are as follows: A clamping plate is provided at one end of the square shaft of the door lock. The clamping plate is clamped on the handle head of the outer door handle and fixed by a snap ring; thus, the square shaft can be locked on the outer door handle. The other end of the square shaft is inserted into the square shaft sleeve of the inner door handle to realize the linkage between the inner door handle and the outer door handle; there is no need to insert a set screw into the outer door handle to lock the square shaft through the set screw; the installation process of the door lock is simplified, and at the same time, the influence of the set screw on the simplicity of the appearance of the door lock is effectively avoided, so as to improve the aesthetics of the door lock. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of a door lock convenient for installation according to the present utility model;

[0019] Figure 2 It is a schematic structural diagram of a door lock convenient for installation according to the present utility model with the square shaft removed;

[0020] Figure 3 It is an assembly drawing of the square shaft of a door lock convenient for installation according to the present utility model on the outer door handle;

[0021] Figure 4 It is a mating diagram of the square shaft and the reinforcing sleeve of a door lock convenient for installation according to the present utility model;

[0022] Figure 5 Schematic diagram of the square shaft of a door lock that is easy to install according to the present utility model;

[0023] Figure 6 Schematic diagram of the internal structure of a door lock that is easy to install according to the present utility model;

[0024] Figure 7 Schematic diagram of the anti-lock button of a door lock that is easy to install according to the present utility model;

[0025] Figure 8 Schematic diagram of the inner handle of a door lock that is easy to install according to the present utility model;

[0026] Figure 9 Schematic diagram of the outer handle of a door lock that is easy to install according to the present utility model;

[0027] Explanation of reference numerals: 1, inner base; 2, outer base; 21, locking groove; 3, inner handle; 31, anti-lock assembly; 311, rotating member; 3111, threaded groove; 312, anti-lock button; 3121, pressing head; 3122, pressing portion; 32, button window; 33, square shaft sleeve; 4, outer handle; 41, handle head; 411, clamping groove; 42, locking assembly; 421, locking cam; 422, locking column; 43, emergency unlocking member; 431, unlocking bearing hole; 5, linkage plate; 6, square shaft; 61, clamping plate; 611, clamping hole; 6111, clamping block; 62, reinforcing sleeve; 7, snap ring. Detailed implementation manners

[0028] Refer to the attached Figures 1 to 9 A further detailed description is given to a door lock that is easy to install according to the present utility model.

[0029] A door lock that is easy to install includes an inner handle 3 and an outer handle 4. The inner handle 3 is rotatably arranged on the inner base 1, the outer handle 4 is rotatably arranged on the outer base 2, and the inner handle 3 and the outer handle 4 are connected by a square shaft 6. One end of the square shaft 6 is provided with a clamping plate 61. The clamping plate 61 is clamped on the handle head 41 of the outer handle 4, and the clamping plate 61 is fixed by a snap ring 7. The other end of the square shaft 6 is inserted into the square shaft sleeve 33 of the inner handle 3 to realize the linkage between the inner handle 3 and the outer handle 4. Among them, screw holes are provided on the inner base 1, and threaded posts corresponding to the screw holes are provided at the bottom of the outer base 2. Among them, screws pass through the screw holes and cooperate with the threaded posts to fix the inner base 1 and the outer base 2 on the door panel, so that both ends of the square shaft 6 are tightly matched with the inner handle 3 and the outer handle 4 respectively;

[0030] There is no need to insert a set screw into the outer handle 4 to lock the square shaft 6 through the set screw; the installation process of the door lock is simplified, and at the same time, the influence of the set screw on the simplicity of the appearance of the door lock is effectively avoided, so as to improve the aesthetics of the door lock.

[0031] Among them, a clamping hole 611 adapted to the handle head 41 of the outer handle 4 is provided in the middle of the clamping plate 61, and a clamping block 6111 adapted to the clamping groove 411 on the handle head 41 is provided in the middle of the clamping hole 611; the clamping block 6111 cooperates with the clamping groove 411 to clamp the clamping plate 61 on the handle head 41; when the outer handle 4 is rotated, the outer handle 4 can drive the square shaft 6 to rotate; in order to strengthen the connection strength between the square shaft 6 and the outer handle 4, a reinforcing sleeve 62 is sleeved on one end of the square shaft 6 close to the clamping plate 61, and after the clamping plate 61 is clamped on the handle head 41, the reinforcing sleeve 62 is placed inside the handle head 41; a set screw hole is provided on the reinforcing sleeve 62, and the square shaft 6 is connected and fixed to the square shaft sleeve 33 by a set screw passing through the set screw hole and abutting against the square shaft 6.

[0032] An anti-lock component 31 is installed in the inner handle 3, and a locking component 42 is installed in the outer handle 4; the anti-lock component 31 includes a rotating member 311 and an anti-lock button 312, a threaded groove 3111 is provided on the outer side wall of the rotating member 311, the anti-lock button 312 is slidably arranged on the inner handle 3, and a pressing head 3121 at one end thereof cooperates with the threaded groove 3111; a pressing portion 3122 is provided on the anti-lock button 312, and the pressing portion 3122 passes out of the button window 32 of the inner handle 3.

[0033] The locking component 42 includes a locking cam 421 and a locking column 422 rotatably arranged in the square shaft sleeve 33, one end of the linkage plate 5 is connected to the rotating member 311, and the other end is connected to the locking cam 421.

[0034] A locking groove 21 adapted to the locking column 422 is provided on the outer base 2. By pressing down the pressing portion 3122, the anti-lock button 312 drives the rotating member 311 to rotate, the locking cam 421 is driven to rotate through the linkage plate 5, the cam surface of the locking cam 421 extrudes the locking column 422 outwards, so that a part of the locking column 422 passes out of the clamping groove 411 of the outer handle 4 and is placed in the locking groove 21, and the outer handle 4 is locked on the outer base 2 to realize the anti-lock of the door lock.

[0035] In order to enable the rotating member 311 to rotate more smoothly in the inner handle 3, bearings are sleeved on both the upper and lower ends of the rotating member 311.

[0036] An emergency unlocking member 43 is provided on the outer handle 4. One end of the emergency unlocking member 43 is connected to the linkage plate 5, and the other end is provided with an unlocking receiving hole 431. Personnel outside the door can insert a tool into the unlocking receiving hole 431 of the emergency unlocking member 43 and turn the emergency unlocking member 43 to drive the linkage plate 5 to rotate, thereby driving the locking cam 421 to rotate, so that the locking post 422 on the locking cam 421 retracts into the square shaft sleeve 33 from the locking groove 21 of the outer base 2, realizing the emergency unlocking of the door lock.

[0037] The above are only the preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A door lock that is convenient to install, comprising an inner handle and an outer handle. The inner handle is rotatably arranged on an inner base, and the outer handle is rotatably arranged on an outer base. The inner handle and the outer handle are connected by a square shaft; characterized in that: One end of the square shaft is provided with a clamping plate, which is clamped on the handle head of the outer handle and fixed by a snap ring; the other end of the square shaft is inserted into the square shaft sleeve of the inner handle.

2. The door lock that is easy to install according to claim 1 is characterized in that: The middle of the clamping plate is provided with a clamping hole adapted to the handle head of the outer handle, and a clamping block adapted to the clamping groove on the handle head is arranged in the middle of the clamping hole; The clamping block is matched with the clamping groove to clamp the clamping plate on the handle head.

3. The door lock convenient for installation according to claim 2, characterized in that: A reinforcing sleeve is sleeved on one end of the square shaft close to the clamping plate. After the clamping plate is clamped on the handle head, the reinforcing sleeve is placed inside the handle head.

4. A door lock that is easy to install according to claim 1 or 2 or 3, characterized in that: An anti-lock component is installed inside the inner handle, and a locking component is installed inside the outer handle; The anti-lock component includes a rotating member and an anti-lock button. A threaded groove is arranged on the outer side wall of the rotating member, and the anti-lock button is slidably arranged on the inner handle, and the pressing head at one end thereof is matched with the threaded groove; The locking component includes a locking cam and a locking column rotatably arranged in the square shaft sleeve. One end of a linkage plate is connected to the rotating member, and the other end is connected to the locking cam; A locking groove adapted to the locking column is arranged on the outer base. The anti-lock button drives the rotating member to rotate, drives the locking cam to rotate through the linkage plate. The cam surface of the locking cam extrudes the locking column outwards, so that a part of the locking column passes through the clamping groove of the outer handle and is placed in the locking groove, locking the outer handle on the outer base.

5. The door lock easy to install according to claim 4, characterized in that: Bearings are sleeved on both the upper and lower ends of the rotating member.

6. The door lock convenient for installation according to claim 4, characterized in that: An emergency unlocking member is arranged on the outer handle. One end of the emergency unlocking member is connected to the linkage plate, and an unlocking bearing hole is arranged at the other end.

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