Door lock

Abstract

The door lock comprises a main lock and an auxiliary lock, the main lock comprises a lock body, a handle connecting rod, a main spring bolt, a first transmission assembly and a second transmission assembly, the handle connecting rod is rotationally arranged on the lock body, and the main spring bolt is arranged on the lock body and connected with the handle connecting rod through the first transmission assembly; the second transmission assembly comprises a first gear and a linkage piece, the linkage piece comprises a rack part, the first gear is connected with the handle connecting rod and meshed with the rack part, the linkage piece is connected with an auxiliary spring bolt of the auxiliary lock, and the handle connecting rod is used for driving the main spring bolt to move through the first transmission assembly and driving the auxiliary spring bolt to move through the first gear and the linkage piece. According to the scheme, the problem that in the prior art, when a door lock opens a door through a door handle, the hand feeling is heavy can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of security equipment, in particular to a door lock. Background Art

[0002] Doors of indoor and outdoor rooms usually need to be provided with door locks. In the related art, the door lock adopts the structure of a main lock and a secondary lock to realize the locking and opening of the door body, thereby improving the anti-theft performance.

[0003] However, in the related art, the linkage between the main lock tongue of the main lock and the auxiliary lock tongue of the auxiliary lock is realized by a linkage member, and the linkage member is provided with a slide groove inclined relative to its moving direction, and the driving member of the main lock moves by driving the sliding shaft, so that the linkage member moves under the cooperation of the slide groove and the sliding shaft, thereby realizing the linkage between the main lock tongue and the auxiliary lock tongue. Since the door lock adopts the inclined slide groove and the sliding shaft to slide and cooperate, the friction is relatively large, so when the user opens the door through the door handle, there will be a problem of heavy hand feeling and affecting the door opening feel. Utility Model Content

[0004] The utility model discloses a door lock, which aims to solve the problem that the door lock in the related art has a heavy hand feeling when opening the door through the door handle.

[0005] In order to solve the above technical problems, the utility model is achieved as follows:

[0006] The present application discloses a door lock, which comprises a main lock and a secondary lock, wherein:

[0007] The main lock comprises a lock body, a handle connecting rod, a main lock tongue, a first transmission assembly and a second transmission assembly, wherein the handle connecting rod is rotatably arranged on the lock body, the main lock tongue is arranged on the lock body and connected to the handle connecting rod through the first transmission assembly;

[0008] The second transmission assembly includes a first gear and a linkage member, the linkage member includes a rack portion, the first gear is connected to the handle connecting rod and meshes with the rack portion, the linkage member is connected to the secondary lock tongue of the secondary lock, the handle connecting rod is used to drive the main lock tongue to move through the first transmission assembly, and is used to drive the secondary lock tongue to move through the first gear and the linkage member.

[0009] The technical solution adopted by the utility model can achieve the following technical effects:

[0010] The door lock disclosed in the embodiment of the present application connects the main lock tongue to the handle connecting rod through the first transmission assembly, and the auxiliary lock tongue to the handle connecting rod through the linkage member and the first gear, so that when the user rotates the handle connecting rod through the door handle, the main lock tongue and the auxiliary lock tongue can be driven to move at the same time, thereby realizing the linkage of the main lock tongue and the auxiliary lock tongue. Since the transmission is carried out by the meshing mode of the first gear and the rack portion when driving the auxiliary lock tongue to move, the friction can be reduced compared with the related art that drives the auxiliary lock tongue to move by the sliding cooperation mode of the inclined slide groove and the sliding shaft, thereby alleviating the problem of heavy hand feeling when the user opens the door through the door handle, and the transmission by the meshing mode of the first gear and the rack portion can also reduce the loss of torque transmitted to the auxiliary lock tongue, thereby reducing power consumption when the handle connecting rod is driven to rotate by the driving motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is an axonometric view of a door lock disclosed in an embodiment of the utility model;

[0012] Figure 2 This is a front view of the door lock disclosed in the embodiment of the utility model;

[0013] Figure 3 This is a schematic diagram of a door lock disclosed in an embodiment of the utility model in a state where the main lock tongue is extended;

[0014] Figure 4 This is a schematic diagram of a door lock disclosed in an embodiment of the utility model in a state where the main lock tongue is retracted;

[0015] Figure 5 This is a schematic diagram of an exploded view of a door lock disclosed in an embodiment of the utility model.

[0016] Description of reference numerals:

[0017] 100-main lock, 110-lock body, 111-guide column, 120-handle connecting rod, 130-main lock tongue, 140-first transmission assembly, 141-lock block, 142-main lock tongue driving member, 150-second transmission assembly, 151-first gear, 152-linkage member, 152a-rack portion, 152b-strip hole, 160-gear set, 161-third gear, 162-fourth gear, 170-rolling sleeve,

[0018] 200-secondary lock, 210-secondary bolt,

[0019] 300-Connecting arm,

[0020] 400 - Second gear. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in combination with the specific embodiments of the utility model and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] The technical solutions disclosed in various embodiments of the present utility model are described in detail below in conjunction with the accompanying drawings.

[0023] Please refer to Figures 1 to 5 The embodiment of the utility model discloses a door lock, which includes a main lock 100 and a secondary lock 200. The main lock 100 and the secondary lock 200 can be arranged on a door body at intervals.

[0024] The main lock 100 includes a lock body 110 , a handle link 120 , a main lock tongue 130 , a first transmission assembly 140 and a second transmission assembly 150 .

[0025] The handle link 120 is rotatably disposed on the lock body 110 , and the user can rotate the handle link through the door handle to extend and retract the main lock tongue and the auxiliary lock tongue.

[0026] The main lock tongue 130 is disposed on the lock body 110 and is connected to the handle link 120 through the first transmission assembly 140. The second transmission assembly 150 includes a first gear 151 and a linkage member 152. The linkage member 152 includes a rack portion 152a, and the first gear 151 is connected to the handle link 120 and meshes with the rack portion 152a. The linkage member 152 is connected to the auxiliary lock tongue 210 of the auxiliary lock 200.

[0027] The handle link 120 is used to drive the main lock tongue 130 to move through the first transmission assembly 140, and is used to drive the auxiliary lock tongue 210 to move through the first gear 151 and the linkage member 152. The rotation of the handle link 120 can drive the first gear 151 to rotate, and the rotation of the first gear 151 can drive the linkage member 152 to move, and the linkage member 152 can drive the auxiliary lock tongue 210 to extend or retract.

[0028] The door lock disclosed in the embodiment of the present application connects the main lock tongue 130 with the handle connecting rod 120 through the first transmission assembly 140, and the auxiliary lock tongue 210 is connected with the handle connecting rod 120 through the linkage member 152 and the first gear 151, so that when the user rotates the handle connecting rod 120 through the door handle, the main lock tongue 130 and the auxiliary lock tongue 210 can be driven to move at the same time, thereby realizing the linkage of the main lock tongue 130 and the auxiliary lock tongue 210. Since when the auxiliary lock tongue 210 is driven to move, the first gear 151 is meshed with the rack portion 152a for transmission, so compared with the related art that the inclined slide groove and the sliding shaft are used to slide and match to drive the auxiliary lock tongue 210 to move, the friction can be reduced, and then when the user opens the door through the door handle, the problem of heavy hand feeling can be alleviated, and the transmission by the first gear 151 and the rack portion 152a can also reduce the loss of torque transmitted to the auxiliary lock tongue 210, and then it is conducive to reducing power consumption when the driving motor is used to drive the handle connecting rod 120 to rotate.

[0029] After the door lock is installed, the linkage member 152 can be fixedly installed by the auxiliary lock tongue 210, so that the auxiliary lock tongue 210 can be directly driven to move by the meshing of the first gear 151 and the rack portion 152a.

[0030] To make the movement of the linkage 152 more stable, optionally, the linkage 152 may include a first guide portion, the lock body 110 may include a second guide portion, and the linkage 152 may move along the moving direction of the linkage 152 through the guiding cooperation between the first guide portion and the second guide portion.

[0031] The door lock disclosed in the embodiment of the present application is provided with a first guide portion and a second guide portion, so that the linkage member 152 moves along the moving direction of the linkage member 152 through the guiding cooperation of the first guide portion and the second guide portion, thereby making the movement of the linkage member 152 more stable, which is beneficial to improving the stability of the engagement between the first gear 151 and the rack portion 152a, and the stability of the movement of the auxiliary lock tongue 210 driven by the linkage member 152.

[0032] Specifically, the first guide portion may have a strip hole 152b opened in the linkage member 152, and the strip hole 152b may extend along the moving direction of the linkage member 152. The second guide portion may include a guide column 111, and the guide column 111 may extend into the strip hole 152b and guide and cooperate with the strip hole 152b. A rolling sleeve 170 may also be sleeved on the guide column 111, and the guide column 111 may guide and cooperate with the strip hole 152b through the rolling sleeve 170, thereby reducing the friction between the guide column 111 and the hole wall of the strip hole 152b.

[0033] The door lock disclosed in the embodiment of the present application makes the structures of the first guide part and the second guide part relatively simple by setting the first guide part as a strip hole 152b opened in the linkage part 152 and the second guide part as a guide column 111, so that the guide column 111 extends into the strip hole 152b and cooperates with the strip hole 152b for guidance.

[0034] Furthermore, the moving direction of the linkage member 152 is perpendicular to the moving direction of the main lock tongue 130 , which is beneficial to the arrangement of the components of the main lock 100 .

[0035] In an optional embodiment, both the strip-shaped hole 152 b and the guide column 111 can be multiple, and the multiple guide columns 111 can correspond to the multiple strip-shaped holes 152 b one by one, so as to further improve the movement stability of the linkage member 152 .

[0036] Of course, in another embodiment, one of the first guide portion and the second guide portion may be a guide rail, and the other may be a slider disposed on the guide rail. The movement stability of the linkage 152 may be improved by the cooperation between the guide slider and the guide rail.

[0037] In order to improve the safety of the door lock, optionally, there may be two secondary locks 200, and the two secondary locks 200 may be respectively arranged on opposite sides of the main lock 100, thereby improving the safety of the door lock.

[0038] Typically, the primary lock 100 and the secondary lock 200 are disposed at intervals on the door body. To facilitate the packaging of the door lock, the linkage 152 will not extend to the lock body 110 of the primary lock 100, or will not extend too long beyond the lock body 110. Therefore, the door lock may further include a connecting arm 300. After the door lock is installed, the two ends of the linkage 152 may face the two secondary locks 200 respectively, and the ends of the linkage 152 facing the secondary locks 200 may be connected to the secondary lock tongues 210 of the corresponding secondary locks 200 through the connecting arm 300. The connecting arm 300 is detachably connected to the linkage and the secondary lock tongue 210.

[0039] The door lock disclosed in the embodiment of the present application connects the end of the linkage 152 facing the secondary lock 200 to the secondary lock tongue 210 of the corresponding secondary lock 200 through the connecting arm 300, thereby preventing the linkage 152 from extending into the lock body 110 of the main lock 100 or extending too long outside the lock body 110.

[0040] Since the movement distance of the auxiliary lock tongue 210 is relatively small, the first gear 151 usually only needs to rotate a small angle. In order to reduce the weight of the main lock 100, optionally, the first gear 151 can be a fan-shaped gear, thereby reducing the weight of the main lock 100.

[0041] Optionally, the main lock 100 may further include a gear set 160, and the gear set 160 may be connected to the handle connecting rod 120. The first transmission assembly 140 may include a lock block 141 and a main lock tongue driving member 142, the lock block 141 may be connected to the main lock tongue driving member 142, the main lock tongue 130 may be connected to the main lock tongue driving member 142, and the lock block 141 and the first gear 151 may both be connected to the gear set 160.

[0042] When the user drives the handle link 120 to rotate through the door handle, the handle link 120 can drive the gear set 160 to rotate, and the gear set 160 can drive the first gear 151 and the lock block 141 to move, so that the first gear 151 drives the linkage member 152 to drive the auxiliary lock tongue 210 to move, and the lock block 141 drives the main lock tongue 130 to move through the main lock tongue driving member 142.

[0043] In some cases, the door lock can be opened and locked by fingerprint recognition, face recognition, card swiping, etc. Therefore, the door lock needs to be opened and locked by a driving motor. Specifically, the door lock may further include a driving motor and a second gear 400, the second gear 400 may be connected to the handle connecting rod 120, the driving motor may be connected to the second gear 400, and the driving motor may be used to drive the handle connecting rod 120 to rotate through the second gear 400.

[0044] Specifically, the main lock 100 may further include a sleeve 170, and the gear set 160 may include a third gear 161 and a fourth gear 162. The sleeve 170 may be fixedly sleeved on the handle connecting rod 120, the second gear 400 and the third gear 161 may be fixedly sleeved on the sleeve 170, the third gear 161 is meshed with the fourth gear 162, and the lock block 141 and the first gear 151 may be connected to the fourth gear 162.

[0045] The above embodiments of the present invention focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0046] The embodiments of the utility model are described above in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the utility model, ordinary technicians in this field can also make many forms without departing from the scope of protection of the utility model and the claims, all of which are within the protection of the utility model.

Claims

1. A door lock, characterized in that: It comprises a main lock (100) and a secondary lock (200), wherein: The main lock (100) comprises a lock body (110), a handle connecting rod (120), a main lock tongue (130), a first transmission assembly (140) and a second transmission assembly (150); the handle connecting rod (120) is rotatably arranged on the lock body (110); the main lock tongue (130) is arranged on the lock body (110) and is connected to the handle connecting rod (120) via the first transmission assembly (140); The second transmission assembly (150) comprises a first gear (151) and a linkage member (152), the linkage member (152) comprising a rack portion (152a), the first gear (151) being connected to the handle connecting rod (120) and meshing with the rack portion (152a), the linkage member (152) being connected to the secondary lock tongue (210) of the secondary lock (200), the handle connecting rod (120) being used to drive the main lock tongue (130) to move through the first transmission assembly (140), and being used to drive the secondary lock tongue (210) to move through the first gear (151) and the linkage member (152).

2. The door lock according to claim 1, characterized in that: The linkage member (152) comprises a first guide portion, the lock body (110) comprises a second guide portion, and the linkage member (152) moves along the moving direction of the linkage member (152) through the guiding cooperation between the first guide portion and the second guide portion.

3. The door lock according to claim 2, characterized in that: The first guide portion has a strip hole (152b) opened on the linkage member (152), and the strip hole (152b) extends along the moving direction of the linkage member (152). The second guide portion includes a guide column (111), and the guide column (111) extends into the strip hole (152b) and cooperates with the strip hole (152b) in a guiding manner.

4. The door lock according to claim 3, characterized in that: The moving direction of the linkage member (152) is perpendicular to the moving direction of the main locking tongue (130).

5. The door lock according to claim 3, characterized in that: There are multiple strip-shaped holes (152b) and multiple guide pillars (111), and the multiple guide pillars (111) correspond one-to-one to the multiple strip-shaped holes (152b).

6. The door lock according to claim 1, characterized in that: There are two secondary locks (200), and the two secondary locks (200) are respectively arranged on two opposite sides of the main lock (100).

7. The door lock according to claim 6, characterized in that: The door lock further comprises a connecting arm (300), the two ends of the linkage member (152) respectively face the two secondary locks (200), and the end of the linkage member (152) facing the secondary lock (200) is connected to the secondary lock tongue (210) of the corresponding secondary lock (200) through the connecting arm (300).

8. The door lock according to claim 1, characterized in that: The first gear (151) is a sector gear.

9. The door lock according to claim 1, characterized in that: The main lock (100) further comprises a gear set (160), wherein the gear set (160) is connected to the handle connecting rod (120); The first transmission assembly (140) comprises a locking block (141) and a main locking tongue driving member (142), the locking block (141) is connected to the main locking tongue driving member (142), the main locking tongue (130) is connected to the main locking tongue driving member (142), and the locking block (141) and the first gear (151) are both connected to the gear set (160).

10. The door lock according to claim 1, characterized in that: The door lock further comprises a driving motor and a second gear (400), wherein the second gear (400) is connected to the handle connecting rod (120), the driving motor is connected to the second gear (400), and the driving motor is used to drive the handle connecting rod (120) to rotate via the second gear (400).

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