CN220184837U - Back type unlocking hidden door lock - Google Patents

Abstract

The utility model relates to a retractable unlocking hidden door lock, which is aimed at solving the problem of poor structural design of existing similar products, which results in the unlocking method not being achieved by pressing the button up and down and moving the lock tongue. After installation, the gap between the base and the door panel is uniform all around. Technical problems with poor concealment resulting from poor distribution design. The base of the door lock is provided with a button and a handle. The key point is that a lock tongue is provided at the bottom of the button in the handle groove of the base, and one end of the support rod is fixed to the hinge seat of the base below the handle through a first pin. The other end of the support rod is fixed to the bottom of the handle in the base through a second pin. The handle barb on the bottom side of the handle in the base is engaged with the barb of the lock tongue; the lock core assembly of the button is driven by the rotation of the key. The lock tongue at the bottom of the button moves, and the handle barb of the handle is separated from the lock tongue barb of the lock tongue; a third pin is provided at the front end of the second pin at the bottom of the handle in the base, and the third pin extends out of the handle And insert both ends into the waist-shaped sliding holes on both sides of the base.

Description

A kind of backward unlocking hidden door lock

Technical field

The utility model relates to a flat lock, which is a backward unlocking hidden door lock.

Background technique

A flat lock is a lock that is hidden in the mounting hole of the cabinet door panel. It is generally installed on the outside of the cabinet door panel. Some flat locks are equipped with a rotating opening handle, and other flat locks are equipped with a flip-opening handle. Among them, the flat lock whose handle is flipped open, such as the application number 202221781076.9 published in Chinese patent documents, the authorization announcement date is 2022.11.11, and the utility model name is "flat lock". The flat lock includes a lock shell, a handle and a lock core mechanism. The handle is equipped with The lock housing pivot is equipped with an L-shaped locking hook. The L-shaped locking hook has an emergency unlocking key inside the door. The lock cylinder mechanism includes an external unlocking component and the lock cylinder body. The lock cylinder body includes a lock core sleeve and a lock cylinder. The L-shaped locking hook has an emergency unlocking key inside the door. The locking hook is equipped with a hook self-locking mechanism. The locking hook self-locking mechanism includes a movable hook locking piece. The locking hook locking piece has a blocking position and an unlocking position along the movable direction. However, the handles of the above products adopt a hinged external structure design at the base, which is opened and closed after unlocking the handle. It lacks an independent button unlocking structure design for the handle, and the unlocking operation method of the handle is not realized by pressing the button after unlocking; at the same time, the base and the rear base are installed. The even distribution design around the gap between the door panels is poor and the concealment is poor. That is, the above products and similar products are installed under the installation holes of the door panels. They are not hidden door locks in the true sense. If they are made into hidden door locks, they require space. Add more distance to avoid interference between components, or the extended handle directly adopts a pin structure.

Contents of the invention

In order to solve the above-mentioned shortcomings, the present utility model provides a retractable unlocking hidden door lock to the field, so that it can solve the problem of poor structural design of existing similar products, which causes the unlocking method to be not realized by pressing the button up and down and the translation of the lock tongue, but the linkage of the handle Technical problems include poor effect and stability, poor even distribution around the gap between the base and the door panel after installation, and poor concealment. Its purpose is achieved through the following technical solutions.

A kind of backward unlocking hidden door lock. The base of the door lock is provided with a button and a handle. The button is set on one side of the handle groove of the base. The flip cover at one end of the handle is located in the handle groove of the base. The handle at the other end is The lock head protrudes from the other side of the bottom of the base, and a lock core component is provided in the button; the key point of its structural design is that there is a lock tongue at the bottom of the button in the handle groove of the base, and the bottom of the handle side in the handle groove of the base A raised hinge seat is provided. One end of the support rod is fixed to the hinge seat of the base through a first pin. A torsion spring is provided at the first pin. The other end of the support rod is fixed in the base through a second pin. The bottom of the handle, the handle barb on one side of the bottom of the handle in the base is engaged with the lock tongue barb of the lock tongue. The lock tongues on both sides of the lock core assembly are symmetrically provided with spring grooves, and the spring grooves of the lock tongue are respectively provided with third A spring; the lock cylinder component of the button drives the lock tongue at the bottom of the button to move through the rotation of the key, and the handle barb of the handle is separated from the lock tongue barb of the lock tongue. The above-mentioned backward unlocking hidden door lock improves the stability of the handle through the linkage of the support rod. At the same time, the stability of the handle is further improved by pressing the following button to drive the lock tongue to move up and down.

A third pin is provided on the other side of the front end of the second pin at the bottom of the handle in the base. The third pin extends out of the handle and its two ends are inserted into the waist-shaped sliding holes on both sides of the base. The above-mentioned handle, stay rod, first pin, second pin, and third pin form a retreat structure, which enables the handle to move forward and backward stably during operation, thereby achieving a gap between the head of the handle in the base and the surrounding area inside the base. Uniformity, as well as overall hiding and gapping effects.

A second spring is symmetrically provided at the bottom of the button in the base, and an eccentric shaft is provided at one side of the bottom of the lock core assembly. When the lock core assembly is in the unlocked state, the eccentric shaft of the lock core assembly is aligned with the pressing hole at the bottom of the base. The inner bottom of the base on one side of the hole is provided with a limiting groove; the other side of the lock tongue has a symmetrical lock tongue barb and is provided with an inner slope, and the inner slope of the lock tongue fits the lower slope of the bottom of the button. Therefore, when the lock cylinder assembly is in the unlocked state, the button can be pressed to move up and down and unlock the operation; when the lock cylinder assembly is in the locked state, the eccentric shaft of the lock cylinder assembly is located above the limit groove, and the button cannot be pressed down. The lower inclined surface cannot push the inner inclined surface of the lock tongue to drive the lock tongue to move.

The lock cylinder assembly and the button side of the base are provided with a bottom plate, and the pressing holes and limiting grooves are provided on the bottom plate. Spring columns are symmetrically provided on both sides of the bottom plate in the base, and the second springs are respectively fixed to the bottom of the bottom plate. Spring column. The above is a structural embodiment in which the pressing hole and the limiting groove are provided on the bottom plate. They can also be provided on the bottom of the base, and the pressure plate is omitted.

The button is fixed in the base through raised buckles on both sides and moves up and down. The fixing screw at the bottom of the button passes through the spring groove of the lock tongue and is connected to the bottom plate. The above is another fixing method of fixing screws and the assembly method of components.

The fixing screw at the bottom of the base plate passes through the spring groove of the lock tongue and is integrated with the bottom of the button in the base. The above is an embodiment in which the fixing screw is fixed to the base and the bottom plate through the spring groove of the lock tongue.

The lock end of the handle is provided with a nut and a long screw, and one end of the long screw is arranged on the lock end of the handle through the nut. This makes it easy to adjust the locking height of the lock head end of the handle according to the actual situation.

The handle groove of the base is aligned with the mounting hole of the door panel. The top of the button and handle is higher than the handle groove of the base and is aligned with the plane of the door panel. Screw holes are provided on the outer edge of the handle groove of the base. The above structure improves the uniform distribution of the gap around the hidden door lock, and the appearance after installation is beautiful and generous, saving space. That is, the door lock is arranged under the installation hole of the door panel, and is aligned with the surface of the door panel through the handle and button, which facilitates the lock body and the door panel. It is integrated and does not protrude from the surface of the door panel. After the lock is closed, the gap between the handle and the top surface of the button that protrudes from the handle groove of the base is the same as the installation hole of the door panel, and the gap is evenly distributed around the perimeter.

The utility model has reasonable structural design, convenient installation and operation, good stability and concealment, beautiful appearance after installation, and saves space; it is suitable for use as a hidden door lock and a flat lock, and as a structural improvement of similar products.

Description of drawings

Figure 1 is a schematic diagram of the explosion structure of the present utility model.

Figure 2 is a schematic diagram of the structure after installation in Figure 1. The dotted line in the figure is the door panel.

Figure 3 is a schematic structural diagram of the button side of the base in Figure 2, and the dotted line in the figure is the base.

FIG. 4 is a schematic structural diagram of the lock tongue of FIG. 3 .

Figure 5 is a schematic diagram of the bottom structure of Figure 2. The dotted lines in the figure represent the internal structure.

Figure 6 is a schematic diagram of the bottom structure of Figure 2. The dotted line in the figure shows another installation method of the fixing screws.

FIG. 7 is a schematic diagram of the internal structure of the base handle side of FIG. 2 .

Fig. 8 is a schematic cross-sectional structural diagram of Fig. 2.

Serial numbers and names of the drawings: 1. Door panel, 2. Lock cylinder assembly, 201. Eccentric shaft, 3. Button, 301. Lock tongue groove, 4. Lock tongue, 401. Lock tongue barb, 402. Inner slope, 5. Base, 501, hinged seat, 6, bottom plate, 601, press hole, 602, limit slot, 603, spring column, 7, bottom plate screw, 8, torsion spring, 9, first pin, 10, second pin Sub, 11. Handle, 12. Support rod, 13. Nut, 14. Long screw, 15. First spring, 16. Second spring, 17. Fixing screw, 18. Third pin.

Implementation

The assembly and use of the present utility model will now be further described with reference to the accompanying drawings. As shown in Figures 1 to 8, the base 5 of the door lock is provided with a button 3 and a handle 11. The button is located on one side of the handle groove of the base, and the flip cover at one end of the handle is located in the handle groove of the base. The lock head at the other end protrudes from the other side of the bottom of the base, and a lock core assembly 2 is provided in the button. The handle groove of the base is aligned with the mounting hole of the door panel 1. The top of the button and the handle is higher than the handle groove of the base and is aligned with the plane of the door panel. Screw holes are provided on the outer edge of the handle groove of the base. The bottom of the button in the handle groove of the base is provided with a lock tongue 4, and the bottom of the handle side of the handle groove of the base is provided with a raised hinge seat 501. One end of the support rod 12 is fixed to the hinge of the base through a first pin 9 base, the first pin is provided with a torsion spring 8, the other end of the support rod is fixed to the bottom of the handle in the base through the second pin 10, the handle barb on one side of the bottom of the handle in the base and the lock tongue of the lock tongue The barbs 401 are engaged. The other side of the lock tongue barbs is symmetrically provided with an inner slope 402. The inner slope of the lock tongue fits the lower slope of the bottom of the button. The lock tongues on both sides of the lock core assembly 2 are symmetrically provided with springs. The first spring 15 is respectively arranged in the spring groove of the lock tongue. At the same time, a third pin 18 is provided on the other side of the front end of the second pin at the bottom of the handle in the base. The third pin extends out of the handle and its two ends are respectively inserted into the waist-shaped sliding holes on both sides of the base. A second spring 16 is symmetrically provided at the bottom of the button in the base, and an eccentric shaft 201 is provided at one side of the bottom of the lock core assembly. When the lock core assembly is in the unlocked state, the eccentric shaft of the lock core assembly is aligned with the pressing hole 601 at the bottom of the base. A limiting groove 602 is provided at the inner bottom of the base on one side of the pressing hole. The lock cylinder assembly and the button side of the base are provided with a base plate 6 at the bottom. The pressing holes and limiting grooves are provided on the base plate. Spring columns 603 are symmetrically provided on both sides of the base plate in the base. The second springs are respectively fixed to the base plate. Spring column. The button is fixed in the base through raised buckles on both sides and moves up and down. The fixing screw 17 at the bottom of the button passes through the spring groove of the lock tongue and is connected to the bottom plate. The lock end of the handle is provided with a nut 13 and a long screw 14. One end of the long screw is arranged on the lock end of the handle through the nut.

The lock core assembly of the above button drives the eccentric shaft at the bottom of the lock core assembly to rotate through the rotation of the key. When the eccentric shaft at the bottom of the lock core assembly is aligned with the pressing hole of the bottom plate, and the button is pressed, the inner bevel of the lock tongue interacts with the lower bevel at the bottom of the button. , the lock tongue at the bottom of the button moves, and the handle barb of the handle detaches from the lock tongue barb of the lock tongue. The specific working process of opening/closing the door lock is as follows: During the unlocking process, the key drives the lock cylinder to rotate 90°, and when the button is pressed, the handle automatically pops open under the action of the spring to complete the unlocking process. During the lock closing process, press the handle to the bottom to automatically close the lock and realize the lock closing process. The key drives the lock cylinder to rotate 90° to close the lock. At this time, the lock cylinder cannot be pressed down.

To sum up, the hidden door lock is a hidden flat lock, a lock that can open and close the lock with evenly distributed gaps around it, and a flat lock mechanism with evenly distributed gaps around the hidden door. The distribution method is beautiful and elegant, saving space. The functions and characteristics of this hidden door lock are as follows: 1. The appearance is beautiful and elegant, the lock and the cabinet are integrated, and the surrounding gaps can be evenly distributed, making it beautiful and elegant. 2. The switch lock system is simple and easy to operate. The key drives the lock core to rotate 180°. Press the button and the handle will automatically spring open under the action of the spring to realize the unlocking process; press the handle to the bottom to automatically close the lock and realize the locking process; key Drive the lock cylinder to rotate 180° to close the lock. At this time, the lock cylinder cannot be pressed down. This hidden door lock is aimed at the fact that the base of current flat locks is generally exposed outside the cabinet. Some customers do not want to see the base exposed outside the cabinet affecting the appearance. This hidden door lock provides a solution to the above problem. At the same time, it is easy to achieve uniform clearance on both sides of the handle groove of the base in which the handles and buttons of other existing flat locks are arranged, but uniform clearance on all sides is difficult to achieve.

Claims (8)

1. A push button (3) and a handle (11) are arranged in a base (5) of the door lock, the push button is arranged on one side of a handle groove of the base, a flip cover at one end of the handle is positioned in the handle groove of the base, a lock head at the other end of the handle extends out of the other side of the bottom of the base, and a lock core component (2) is arranged in the push button; the lock is characterized in that a lock tongue (4) is arranged at the bottom of a button (3) in a handle groove of a base (5), a raised hinging seat (501) is arranged at the bottom of one side of a handle (11) in the handle groove of the base, one end of a supporting rod (12) is fixed on the hinging seat of the base through a first pin (9), a torsion spring (8) is arranged at the first pin, the other end of the supporting rod is fixed at the bottom of the handle in the base through a second pin (10), a handle barb at one side of the bottom of the handle in the base is buckled with a lock tongue barb (401) of the lock tongue, spring grooves are symmetrically arranged on the lock tongues at two sides of a lock cylinder assembly (2), and a first spring (15) is respectively arranged in the spring grooves of the lock tongue; the lock core component of the button drives the lock tongue at the bottom of the button to move through the rotation of the key, and the handle barb of the handle is separated from the lock tongue barb of the lock tongue.

2. The retractable unlocking hidden door lock according to claim 1, wherein a third pin (18) is arranged on the other side of the front end of the second pin (10) at the bottom of the handle (11) in the base (5), and the third pin extends out of the handle and two ends of the third pin are respectively inserted into kidney-shaped sliding holes on two sides of the base.

3. The retractable unlocking hidden door lock according to claim 2, wherein the bottom of the button (3) in the base (5) is symmetrically provided with a second spring (16), one side of the bottom of the lock cylinder assembly (2) is provided with an eccentric shaft (201), and when the lock cylinder assembly is in an unlocking state, the eccentric shaft of the lock cylinder assembly is aligned with a pressing hole (601) at the bottom of the base, and the inner bottom of the base at one side of the pressing hole is provided with a limit groove (602); the other symmetrical side of the lock tongue barb (401) of the lock tongue (4) is provided with an inner inclined plane (402), and the inner inclined plane of the lock tongue is attached to the lower inclined plane of the bottom of the button.

4. A retractable unlocking hidden door lock according to claim 3, wherein a bottom plate (6) is arranged at the bottoms of one side of the lock cylinder assembly (2) and the button (3) of the base (5), the pressing hole (601) and the limiting groove (602) are arranged on the bottom plate, spring columns (603) are symmetrically arranged at two sides of the bottom plate in the base, and the second springs (16) are respectively fixed on the spring columns of the bottom plate.

5. The retractable unlocking hidden door lock according to claim 4, wherein the button (3) is fixed in the base (5) through protruding buckles at two sides to move up and down, and a fixing screw (17) at the bottom of the button (3) penetrates through a spring groove of the lock tongue (4) to be connected with the bottom plate (6).

6. The retractable unlocking hidden door lock according to claim 4, wherein the fixing screw (17) at the bottom of the bottom plate (6) penetrates through the spring groove of the lock tongue (4) and is connected with the bottom of the button (3) in the base into a whole.

7. The retractable unlocking hidden door lock according to claim 1, wherein the lock end of the handle (11) is provided with a nut (13) and a long screw (14), and one end of the long screw is arranged at the lock end of the handle through the nut.

8. The retractable unlocking hidden door lock according to claim 1, wherein the handle groove of the base (5) is aligned with the mounting hole of the door plate (1), the tops of the button (3) and the handle (11) are higher than the handle groove of the base and are positioned on the same plane to be aligned with the plane of the door plate, and the outer side edge of the handle groove of the base is provided with a screw hole.