Pull type plane lock

Abstract

The utility model discloses a pull type plane lock which comprises a lock body, an inner panel and an outer panel. The lock body comprises a lock shell and a spring bolt, the rear end of the spring bolt is connected with an unlocking matching piece, and the unlocking matching piece is provided with a matching through hole. An inner pulling plate and an outer pulling plate are rotationally arranged on the inner panel and the outer panel respectively, the lower end face of the inner pulling plate is connected with an inner push rod, and the lower end face of the outer pulling plate is connected with an outer push rod; the lower end of the inner push rod and the lower end of the outer push rod penetrate into the matched through holes from the corresponding sides of the lock shell respectively. Unlocking is achieved by pulling the inner pulling plate or the outer pulling plate; the door lock is used for replacing the unlocking mode that a traditional door lock is unlocked by rotating a door handle, and the problem that after an existing door lock is used for a period of time, the door handle shakes up and down and droops due to spring fatigue is effectively solved. Meanwhile, the unlocking operation of the door lock is realized by pulling the inner pulling plate or the outer pulling plate, so that the unlocking operation of the door lock is simpler and more convenient; the door lock is simple in structure, and the manufacturing cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of door lock technology, and more specifically, it relates to a pull-type flat lock. Background Technology

[0002] Door locks are essential security devices for windproofing and theft prevention. Existing door locks are designed to simultaneously achieve both windproofing and theft prevention functions.

[0003] Most door locks on the market open by rotating the inside and outside door handles to retract the bolt. For example, Chinese utility model patent CN216553384U discloses a new type of eco-friendly door lock, which includes an inner handle base fixed to the inner door panel, an outer handle base fixed to the outer door panel, an inner handle, an outer handle, and a square shaft with both ends connected to the inner and outer handles respectively, enabling the inner and outer handles to move together. The inner handle is rotatably mounted on the inner handle base, and the outer handle is rotatably mounted on the outer handle base. However, after a period of use, the door lock will experience spring fatigue, causing the door handle to wobble up and down and sag, making it inconvenient to use. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a pull-type flat lock.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A pull-type flat lock includes a lock body and an inner panel and an outer panel respectively disposed on both sides of the lock body; the lock body includes a lock shell and a bolt slidably disposed in the lock shell, the front end of the bolt has a built-in magnet, and the rear end of the bolt is connected to an unlocking engagement component, the unlocking engagement component is provided with an engagement through hole;

[0007] An inner pull plate and an outer pull plate are rotatably provided on the inner panel and the outer panel, respectively. An inner push rod is connected to the lower end face of the inner pull plate, and an outer push rod is connected to the lower end face of the outer pull plate.

[0008] The lower ends of the inner push rod and the outer push rod are respectively inserted from the corresponding side of the lock housing and placed in the mating through hole;

[0009] Pulling the inner pull plate outward causes the inner push rod to swing backward, which in turn pushes the bolt back into the lock housing; or pulling the outer pull plate outward causes the outer push rod to swing backward, which in turn pushes the bolt back into the lock housing, thus unlocking the lock.

[0010] The present invention further includes: a first reset spring is provided on the rear side of the inner push rod to drive the inner push rod to reset; when the inner push rod swings backward, it will pull the first reset spring back.

[0011] The outer push rod is provided with a second reset spring on its rear side to drive the outer push rod to reset. When the outer push rod swings backward, it will pull the second reset spring back.

[0012] The present invention is further provided with the following: a locking component is rotatably provided inside the lock housing, the locking component is placed in the mating through hole, and a locking part is provided on one side of the locking component protruding outward;

[0013] Rotating the anti-locking component causes the anti-locking part to abut against the front side wall of the mating through hole, preventing the locking tongue from sliding backward and thus achieving anti-locking.

[0014] The present invention further comprises: a limiting post on the anti-locking component, and a limiting groove on the lock housing that cooperates with the limiting post; the limiting post and the limiting groove cooperate to restrict the rotation of the anti-locking component.

[0015] The present invention further includes a positioning torsion spring on the lock housing, with one end of the positioning torsion spring abutting against the lock housing and the other end abutting against the anti-locking component.

[0016] The present invention is further provided with: a deadbolt knob is provided on the inner panel, and a lock cylinder is provided on the outer panel;

[0017] One end of the deadbolt is connected to the deadbolt knob, and the other end is connected to the lock cylinder.

[0018] The beneficial effects of this utility model are as follows: The door lock has an inner pull plate rotatably mounted on the inner panel and an outer pull plate mounted on the outer panel. Pulling the inner or outer pull plate outward causes the inner or outer push rod to push the bolt backward, retracting it into the lock case, thus unlocking the door. This replaces the traditional door lock unlocking method of turning the door handle, effectively solving the problem of door handle wobbling and sagging due to spring fatigue after a period of use. Simultaneously, unlocking the door lock is achieved by pulling the inner or outer pull plate, making the unlocking operation simpler. Furthermore, the inner and outer push rods operate independently without linkage, allowing for easier pulling of the inner and outer pull plates. The door lock has a simple design, effectively reducing manufacturing costs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a pull-type flat lock according to this utility model. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the structure of a pull-type flat lock according to this utility model. Figure 2 ;

[0021] Figure 3 This is a schematic diagram of the structure of a pull-type flat lock according to the present invention, which involves removing the outer pull plate;

[0022] Figure 4 This is a schematic diagram of the structure of a pull-type flat lock with the inner pull plate removed according to the present invention;

[0023] Figure 5 This is a schematic diagram of the lock body of a pull-type flat lock according to the present invention;

[0024] Figure 6 This is a schematic diagram of the internal structure of the lock body of a pull-type flat lock according to this utility model;

[0025] Figure 7 This is a schematic diagram illustrating the unlocking and locking principle of a pull-type flat lock according to this utility model.

[0026] Explanation of reference numerals in the attached drawings: 1. Lock body; 11. Lock shell; 111. Limiting groove; 112. Positioning torsion spring; 12. Lock tongue; 13. Unlocking mating part; 131. Mating through hole; 14. Deadbolt part; 141. Deadbolt section; 142. Limiting post; 2. Inner panel; 21. Inner pull plate; 211. Inner push rod; 212. First return spring; 22. Deadbolt knob; 3. Outer panel; 31. Outer pull plate; 311. Outer push rod; 312. Second return spring; 32. Lock cylinder. Detailed Implementation

[0027] See attached document Figures 1 to 7 This utility model provides a more detailed description of a pull-type flat lock.

[0028] A pull-type flat lock includes a lock body 1 and an inner panel 2 and an outer panel 3 respectively disposed on both sides of the lock body 1; the lock body 1 includes a lock shell 11 and a bolt 12 slidably disposed within the lock shell 11, the front end of the bolt 12 has a built-in magnet, and a door lock strike box on the door frame is provided with a magnet that can automatically pull the bolt 12 out of the lock shell 11, that is, when the door is closed, the bolt will be automatically pulled out and placed in the door lock strike box; its rear end is connected to an unlocking engagement part 13, the unlocking engagement part 13 is provided with an engagement through hole 131;

[0029] An inner pull plate 21 and an outer pull plate 31 are rotatably provided on the inner panel 2 and the outer panel 3 respectively. An inner push rod 211 is connected to the lower end face of the inner pull plate 21, and an outer push rod 311 is connected to the lower end face of the outer pull plate 31.

[0030] The lower ends of the inner push rod 211 and the outer push rod 311 are respectively inserted from the corresponding side of the lock housing 11 and placed in the mating through hole 131;

[0031] Pulling the inner pull plate 21 outward causes the inner push rod 211 to swing backward, pushing the bolt 12 back into the lock housing 11; or pulling the outer pull plate 31 outward causes the outer push rod 311 to swing backward, pushing the bolt 12 back into the lock housing 11, thus unlocking the door lock. This replaces the traditional door lock unlocking method of turning the door handle, effectively solving the problem of door handle wobbling and sagging due to spring fatigue after a period of use. Simultaneously, unlocking the door lock is made simpler by pulling either the inner pull plate 21 or the outer pull plate 31. Furthermore, the inner push rod 211 and the outer push rod 311 operate independently without linkage, allowing for easier pulling of both plates. This door lock design is simple and effectively reduces manufacturing costs.

[0032] The inner push rod 211 is provided with a first return spring 212 on its rear side to drive the inner push rod 211 to reset. When the inner push rod 211 swings backward, it will pull the first return spring 212 back. The outer push rod 311 is provided with a second return spring 312 on its rear side to drive the outer push rod 311 to reset. When the outer push rod 311 swings backward, it will pull the second return spring 312 back. After unlocking, the inner pull plate 21 or the outer pull plate 31 is released. Driven by the first return spring 212 or the second return spring 312, the inner pull plate 21 or the outer pull plate 31 will automatically reset.

[0033] The lock housing 11 is rotatably provided with a deadbolt 14, the inner panel 2 is provided with a deadbolt knob 22, and the outer panel 3 is provided with a lock cylinder 32; one end of the deadbolt 14 is connected to the deadbolt knob 22, and the other end is connected to the lock cylinder 32.

[0034] The deadbolt 14 is placed inside the mating through hole 131. One side of the deadbolt 14 has a deadbolt part 141 protruding outward. By turning the lock cylinder 32 with the deadbolt knob 22 or the key, the deadbolt 14 is rotated. The deadbolt part 141 abuts against the front side wall of the mating through hole 131, preventing the lock tongue 12 from sliding backward, thus achieving deadbolt locking of the door lock.

[0035] The anti-locking member 14 is provided with a limiting post 142, and the lock housing 11 is provided with a limiting groove 111 that cooperates with the limiting post 142; the limiting post 142 and the limiting groove 111 cooperate to limit the rotation range of the anti-locking member 14.

[0036] The lock housing 11 is provided with a positioning torsion spring 112, one end of which abuts against the lock housing 11 and the other end abuts against the anti-locking member 14; the positioning torsion spring 112 stably positions the anti-locking member 14 in the anti-locking position or the unlocking position.

[0037] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A pull type surface lock comprising a lock body and inner and outer face plates respectively provided on both sides of the lock body; characterized in that: The lock body comprises a lock shell and a lock tongue slidingly arranged in the lock shell, a magnet is arranged in the front end of the lock tongue, and a unlocking matching piece is connected to the rear end of the lock tongue, the unlocking matching piece is provided with a matching through hole; The inner panel and the outer panel are respectively provided with an inner pull plate and an outer pull plate, the lower end surface of the inner pull plate is connected with an inner push rod, and the lower end surface of the outer pull plate is connected with an outer push rod; The lower ends of the inner push rod and the outer push rod are respectively inserted into the matching through hole from the corresponding side of the lock shell; The inner pull plate is pulled outward, the inner pull plate drives the inner push rod to swing backward, and the inner push rod pushes the lock tongue to retract into the lock shell; or the outer pull plate is pulled outward, the outer pull plate drives the outer push rod to swing backward, and the outer push rod pushes the lock tongue to retract into the lock shell, so as to realize unlocking.

2. A pull-type flatlock according to claim 1, characterised in that: The rear side of the inner push rod is provided with a first reset spring for driving the inner push rod to reset, and the inner push rod swings backward to pull the first reset spring backward; The rear side of the outer push rod is provided with a second reset spring for driving the outer push rod to reset, and the outer push rod swings backward to pull the second reset spring backward.

3. A pull-type flatlock according to claim 1 or 2, characterised in that: The lock shell is provided with a reverse locking piece, the reverse locking piece is arranged in the matching through hole, and the reverse locking piece is provided with a reverse locking portion outwardly protruding from one side; The reverse locking portion is abutted against the front side wall of the matching through hole by rotating the reverse locking piece, so as to prevent the lock tongue from sliding backward and realize reverse locking.

4. A pull-type flatlock according to claim 3, characterised in that: The reverse locking piece is provided with a limiting column, and the lock shell is provided with a limiting groove matched with the limiting column; the limiting column and the limiting groove are matched to limit the rotation of the reverse locking piece.

5. A pull-type flatlock according to claim 4, characterised in that: The lock shell is provided with a positioning torsion spring, one end of the positioning torsion spring is abutted against the lock shell, and the other end is abutted against the reverse locking piece.

6. A pull-type flatlock according to claim 5, characterised in that: The inner panel is provided with a reverse locking knob, and the outer panel is provided with a lock cylinder; one end of the reverse locking piece is connected with the reverse locking knob, and the other end is connected with the lock cylinder.

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