TWI897314B - Easy-to-install door locks - Google Patents

Abstract

The present invention provides an easy-to-install door lock comprising a front lock unit, a bolt unit, and a rear lock unit. Each of the front and rear lock units is provided with a pusher having an outwardly inclined protrusion at its end. The bolt unit has two side lock-mounted pusher seats, each with a wedge-shaped portion corresponding to the pusher. With this design, when the user installs the front and rear lock units on a corresponding door panel, the protrusions of the pusher seats on the two sides respectively abut against the wedge-shaped portions of the bolt unit's pusher seats, generating a rearward thrust (inward toward the door panel) and positioning the bolt unit toward the side of the door panel. This effectively achieves simple and convenient installation.

Description

Easy-to-install door locks

The present invention relates to a door lock technology that is easy to assemble.

Locks have always been an indispensable anti-theft tool in our daily lives. Their use is quite widespread. There are many types of locks on the market, and the most common ones are entrance and exit locks. These are generally cylindrical locks, which can be locked or unlocked by using a key from the outside or by turning the lock from the inside.

A typical door lock generally consists of an inner lock, an outer lock, and a bolt. The inner and outer locks are connected by the inner and outer sides of the door panel, respectively, while the bolt is mounted on the side of the door panel between the inner and outer locks. The bolt's door stopper must be fastened to the door panel with two screws. Since this type of door lock is assembled by consumers themselves at home after purchase, the tools used are generally simple screwdrivers. This means the assembler must manually use a screwdriver to drive the screws into the door panel before the door stop can be locked, which is a significant assembly complication. Furthermore, when the assembler replaces the door lock with a new one, the new screws will lock into the old screw holes, potentially preventing the screws from properly tightening. This prevents the door stop from being properly secured to the side edge of the door panel, affecting the positioning of the bolt and significantly reducing the assembly quality of the door lock.

Because existing door locks have some inconveniences during installation, the inventors have diligently developed patents for "Door Locks" (Taiwan Patent Publication No. I722863 and U.S. Patent No. 11408197 B2) to address these shortcomings. Now, driven by a spirit of continuous improvement and dedication to developing door locks, the inventors have once again provided an "Easy-to-Install Door Lock" that offers convenient assembly.

To address the shortcomings of the aforementioned existing technologies, the primary objective of this invention is to provide a door lock technology that is easy to assemble. This technology utilizes the inclined convex portion to abut the wedge surface to generate an inward thrust to position the lock bolt unit, thereby overcoming the difficulties of the existing technology.

A secondary purpose of this invention is to provide a door lock technology that can be easily installed. Utilizing a fool-proof design where the arc-shaped slot seats correspond to the arc-shaped pieces, installation is simplified and convenient, eliminating the need for alignment.

Technical means for solving the problem. To achieve the above-mentioned purpose, the present invention provides an easy-to-install door lock, which is characterized by comprising: a front lock unit, a bolt unit and a rear lock unit, wherein the front lock unit and the rear lock unit are respectively provided with a push piece, the end of the push piece is provided with an outwardly inclined convex portion, and the two sides of the bolt unit are locked with a built-in push seat, the push seat is provided with a push seat, and the push seat is provided with a push seat. The pusher seat features a wedge-shaped surface that corresponds to the pusher element. This design allows the user to install the front and rear lock units in the door panel. The inclined protrusions of the pusher elements on both sides respectively engage the wedge-shaped surfaces of the pusher seat, generating a rearward thrust (inward toward the door panel) and positioning the lock unit toward the side of the door panel, effectively achieving simple and convenient installation.

The front locking unit has a screw tube mounted on its front assembly plate, and the rear locking unit has a through hole through which a screw rod is mounted. The screw rod is locked to the screw tube to secure the front and rear locking units together.

The system further includes a foolproofing device comprising an arcuate slot seat disposed on the front assembly plate of the front lock unit and an arcuate plate disposed on the rear assembly plate of the rear lock unit. The arcuate plate is correspondingly embedded in the arcuate slot seat to ensure foolproof assembly alignment of the front and rear lock units.

1: Door panel

11: Main hole

12:Lock bolt hole

2: Front lock unit

21: Front lock seat

22: Front group set up the plate

23: Locking core assembly

24: First front slot hole

25: First front push piece

251: First front elastic part

252: First front oblique protrusion

26: Second front slot hole

27: Second front push piece

271: Second front elastic part

272: Second front oblique convex part

28:Screw pipe

29: Arc groove seat

3: Rear lock unit

31: Rear lock seat

32: Rear assembly set up

33: First rear slot hole

34: First rear push piece

341: First posterior elastic part

342: First posterior oblique protrusion

35: Second rear slot hole

36: Second rear push piece

361: Second posterior elastic part

362: Second posterior oblique convex part

37: Perforation

38: Arc Plate

4: Locking unit

41: Keyhole

42: Front push seat

421: Anterior wedge face

43: Rear push seat

431: Posterior wedge face

44: Elastic parts

45: Front support seat

46: Rear support seat

5: Screw

Figure 1: An exploded view of the easy-to-install door lock of the present invention.

Figure 2: A partially exploded view of the easy-to-install door lock of the present invention.

Figure 3: A cross-sectional view of the easy-to-install door lock assembly of the present invention.

Figure 4: A cross-sectional view of the corresponding state of the fool-proofing device of the easy-to-install door lock of the present invention.

Figure 5: A cross-sectional view of the easy-to-install door lock of the present invention showing the anti-fouling device in the locked state.

Figure 6: A cross-sectional view of the easy-to-install door lock of the present invention after assembly.

Figure 7: A cross-sectional view of the assembly of another embodiment of the easy-to-install door lock of the present invention.

The present invention is described below in detail using the accompanying drawings and examples. The drawings used herein are for illustrative purposes only and to assist in the description. They may not reflect the actual scale and precise configuration of the present invention after implementation. Therefore, the scale and configuration of the accompanying drawings should not be used to limit the patent scope of the present invention in actual implementation.

Please refer to the first figure for the overall exploded view of the easy-to-install door lock of the present invention. This figure shows that the present invention includes a door panel (1), a front lock unit (2), a rear lock unit (3) and a bolt unit (4), wherein the door panel (1) is provided with a main hole (11) and a bolt hole (12) extending from the main hole (11) to the side. The main hole (11) is provided for the front lock unit (2) and the rear lock unit (3) to be assembled with each other, and the bolt unit (4) is correspondingly embedded in the bolt hole (12) and installed and positioned between the front lock unit (2) and the rear lock unit (3). Its characteristics are:

The front lock unit (2) includes a front lock seat (21) and a front assembly plate (22) assembled on the front lock seat (21). A lock core assembly (23) is mounted on the front assembly plate (22). A first front slot hole (24) is provided on one side of the lock core assembly (23). A first front push piece (25) is assembled in the front lock seat (21). The first front push piece (25) has a first front elastic portion (251) at one end and a first front oblique protrusion extending toward the other end. The first front oblique protrusion (252) passes through the first front slot (24); in addition, a second front slot (26) is provided on the other side of the lock core assembly (23), and a second front push piece (27) is provided in the front lock seat (21). The second front push piece (27) has a second front elastic portion (271) at one end and extends to the other end and is provided with a second front oblique protrusion (272) inclined outward, and the second front oblique protrusion (272) passes through the second front slot (26).

The rear lock unit (3) includes a rear lock seat (31) and a rear assembly plate (32) assembled on the rear lock seat (31). A first rear slot hole (33) is provided on the rear assembly plate (32), and the rear lock seat (31) is provided with a first rear push piece (34) corresponding to the first rear slot hole (33). One end of the first rear push piece (34) is provided with a first rear elastic portion (341), and the other end extends and is provided with a first rear oblique protrusion (342) inclined outwardly. ) passes through the first rear slot (33); in addition, a second rear slot (35) is provided on the side of the first rear slot (33) of the rear assembly plate (32), and the rear lock seat (31) is provided with a second rear push piece (36) corresponding to the second rear slot (35). One end of the second rear push piece (36) is provided with a second rear elastic portion (361), and the other end extends and is provided with a second rear oblique protrusion (362) inclined outwardly, and the second rear oblique protrusion (362) passes through the second rear slot (35).

The lock bolt unit (4) is provided with a lock hole (41) for the lock core assembly (23) to pass through, and a front push seat (42) and a rear push seat (43) are respectively provided at the positions corresponding to the first front push piece (25) and the first rear push piece (34), and the front push seat (42) is provided with a front wedge surface portion (421) at the position corresponding to the first front oblique protrusion (252) of the first front push piece (25), and the rear push seat (43) is provided with a rear wedge surface portion (431) at the position corresponding to the first rear oblique protrusion (342) of the first rear push piece (34). A spring member (44) for limiting the position of the push seat (42) and the push seat (43) is provided between the front and rear push seats (42) and (43). The spring member (44) is pressed against the wall of the lock bolt unit (4) so that the front push seat (42) and the rear push seat (43) are stably installed in the lock bolt unit (4). In addition, a front support seat (45) and a rear support seat (46) are respectively provided at the second front oblique protrusion (272) of the second front push member (27) and the second rear oblique protrusion (362) of the second rear push member (36) of the lock bolt unit (4).

When installing the door lock, please refer to the second and third figures. The detailed structure of the door panel (1) and the bolt unit (4) is as shown in No. 1722863, which will not be described here. The installer first inserts the bolt unit (4) into the bolt hole (12) and then inserts the front lock unit (2) and the rear lock unit (3) into the two sides of the main hole (11) of the door panel (1) respectively, so that the lock core assembly (23) can correspond to the lock hole (41) of the bolt unit (4) and the front lock unit (2) The first front oblique protrusion (252) of the first front push member (25) contacts the front wedge surface (421) of the front push seat (42) of the lock bolt unit (4), and the first rear oblique protrusion (342) of the first rear push member (34) of the rear lock unit (3) contacts the rear wedge surface (431) of the rear push seat (43) of the lock bolt unit (4); in this state, the lock bolt unit (4) has not yet been assembled and positioned, and the lock bolt unit (4) slightly protrudes from the lock bolt hole (12) of the door panel (1).

Next, please refer to the fourth and fifth figures, the front locking unit (2) and the rear locking unit (3) are locked relative to each other, and the locking method is further adopted by providing a screw tube (28) on the assembly disk (22) in front of the front locking unit (2), and the rear locking unit (3) is provided with a through hole (37) corresponding to a screw (5) passing through the assembly, and the screw (5) is correspondingly locked to the screw tube (28) to assemble and position the front locking unit (2) and the rear locking unit (3); and When assembling the front lock unit (2), in order to reduce assembly errors and alignment problems, the front lock unit (2) and the rear lock unit (3) can be assembled and aligned by a foolproof device to ensure correct assembly. The foolproof device includes an arcuate groove seat (29) provided on the front assembly plate (22) of the front lock unit (2) and an arc piece (38) provided on the rear assembly plate (32) of the rear lock unit (3). The arc piece (38) is correspondingly embedded in the arcuate groove seat (29) to provide foolproof assembly alignment for the front lock unit (2) and the rear lock unit (3).

Please return to Figure 3 and refer to Figures 5 and 6. When the screw (5) is locked with respect to the screw tube (28) as shown in Figure 5, the front locking unit (2) and the rear locking unit (3) are locked and displaced toward the door panel (1). At this time, the first front elastic portion (251) of the first front pushing member (25) and the first rear elastic portion (341) of the first rear pushing member (34) are compressed. Therefore, the elastic force of the compression pushes the first front oblique protrusion (252) and the first rear oblique protrusion (341) to move relative to each other. The first rear oblique protrusion (342) exerts a backward thrust on the front wedge surface (421) of the front push seat (42) and the rear wedge surface (431) of the rear push seat (43), forcing the entire lock bolt unit (4) to move backward [into the door panel]. When the front lock unit (2) and the rear lock unit (3) are in contact with the door panel (1) and positioned as shown in Figure 6, the lock bolt unit (4) can be linked to make appropriate displacement as shown by the arrow direction, thus completing the assembly between the door lock and the door panel (1).

In another embodiment, in order to ensure that the locking bolt unit (4) does not have a deviation problem during the assembly process, the second front push piece (27) corresponds to the front support seat (45) and the second rear push piece (36) corresponds to the rear support seat (46) to provide auxiliary limiting; when the first front push piece (25) and the first rear push piece (34) contact the front and rear push seats (42) and (43), the second front oblique protrusion (272) of the second front push piece (27) contacts the front support seat (45), and the second rear push piece ( The second rear oblique protrusion (362) of the second front push member (27) and the second rear oblique protrusion (36) are in contact with the rear support seat (46) to provide an auxiliary limiting effect. At the same time, the front lock unit (2) and the rear lock unit (3) are locked and displaced toward the door panel (1). Similarly, the second front elastic portion (271) of the second front push member (27) and the second rear elastic portion (361) of the second rear push member (36) are compressed. The compressed elastic force pushes the second front oblique protrusion (272) and the second rear oblique protrusion (362) to embed into the front and rear support seats (45) and (46) to support and limit.

It is worth mentioning that the present invention uses the front wedge surface (421) and the rear wedge surface (431) to cooperate with the first front push piece (25) and the first rear push piece (34) to have an elastic portion and an oblique convex portion, so that the locking bolt unit (4) is pushed into the locking bolt hole (12) by the compressed elastic force, and the locking bolt unit (4) can be completely embedded in the locking bolt hole (12). In addition, the first front elastic portion (251) and the first rear elastic portion (341) mainly provide elastic force to lock the locking bolt unit (4) backward, and the second front elastic portion (271) and the second rear elastic portion (361) for support are used to push the locking bolt unit (4) into the locking bolt hole (12). 1) The compression amount is different. The two have a buffering effect during the assembly process, which can increase the assembly fit and avoid the problem of poor assembly due to errors in structural dimensions. Moreover, due to the aforementioned buffering effect, it can be applied to door panels (1) of different thicknesses for assembly [see Figure 7]. When the door lock of the present invention is assembled on door panels (1) of different thicknesses, the lock unit (4) can still be tightly attached to the side of the door panel (1). Therefore, the design of the door lock of the present invention not only has the effect of convenient assembly, but is also widely applicable to the thickness of door panels (1) of different door types currently on the market and still has better applicability.

The advantages of this invention are as follows:

1. This invention utilizes the inclined protrusion against the wedge surface to generate an inward thrust to position the lock unit. This allows the installer to simply and conveniently secure the lock unit within the door panel's lock hole, achieving the advantage of easy installation.

2. This invention utilizes a fool-proof design where the arc-shaped slot seats correspond to the arc-shaped pieces, making installation simpler and more convenient without requiring alignment.

3. The present invention utilizes an elastic design to accommodate door panels of varying thicknesses, achieving practical convenience.

From the foregoing, it is clear that this invention, while surpassing previous technical structures, has indeed achieved the desired enhanced functionality. Furthermore, this invention, which had not been disclosed prior to this application, demonstrates its advanced nature and practicality, clearly meeting the application requirements for a patent for a creative invention. Therefore, we hereby file a patent for a creative invention in accordance with the law and earnestly request that the Department approve this application to encourage creativity. We are deeply grateful.

1: Door panel

11: Main hole

12:Lock bolt hole

2: Front lock unit

21: Front lock seat

22: Front group set up the plate

23: Locking core assembly

24: First front slot hole

25: First front push piece

251: First front elastic part

252: First front oblique protrusion

26: Second front slot hole

27: Second front push piece

271: Second front elastic part

272: Second front oblique convex part

28:Screw pipe

29: Arc groove seat

3: Rear lock unit

31: Rear lock seat

32: Rear assembly set up

33: First rear slot hole

34: First rear push piece

341: First posterior elastic part

342: First posterior oblique protrusion

35: Second rear slot hole

36: Second rear push piece

361: Second posterior elastic part

362: Second posterior oblique convex part

37: Perforation

38: Arc Plate

4: Locking unit

41: Keyhole

42: Front push seat

421: Anterior wedge face

43: Rear push seat

431: Posterior wedge face

44: Elastic parts

45: Front support seat

46: Rear support seat

5: Screw

Claims (4)

An easy-to-install door lock comprises a door panel, a front lock unit, a rear lock unit, and a bolt unit. The door panel has a main hole and bolt holes extending laterally from the main hole. The main hole allows the front lock unit and the rear lock unit to be assembled together, while the bolt unit is inserted into the bolt hole and is installed and positioned between the front lock unit and the rear lock unit. The door lock is characterized by: The front lock unit includes a front lock base and a front assembly plate assembled on the front lock base. A lock core assembly is mounted on the front assembly plate. A first front slot is provided on one side of the lock core assembly. A first front push member is assembled within the front lock base. The first front push member has a first front elastic portion at one end and a first front oblique protrusion extending outwardly from the other end. The first front oblique protrusion extends through the first front slot. The rear lock unit includes a rear lock base and a rear assembly plate assembled on the rear lock base. The rear assembly plate is provided with a first rear slotted hole. The rear lock base is provided with a first rear push member corresponding to the first rear slotted hole. The first rear push member has a first rear elastic portion at one end and a first rear oblique protrusion extending outwardly from the other end. The first rear oblique protrusion extends through the first rear slotted hole. The lock bolt unit is provided with a lock hole for the lock core assembly to pass through, and a front push seat and a rear push seat are respectively provided corresponding to the first front push member and the first rear push member. The front push seat is provided with a front wedge surface corresponding to the first front oblique protrusion of the first front push member, while the rear push seat is provided with a rear wedge surface corresponding to the first rear oblique protrusion of the first rear push member. A spring member for abutment and limiting is provided between the front and rear push seats, and the spring member abuts against the wall of the lock bolt unit. The easy-to-install door lock as described in claim 1, wherein a second front slot is provided on the other side of the lock core assembly of the front assembly plate, and a second front push piece is provided in the front lock seat, one end of the second front push piece is provided with a second front elastic portion, and the other end extends and is provided with a second front oblique protrusion inclined outward, and the second front oblique protrusion passes through the second front slot; and a second rear slot is provided on the side of the first rear slot of the rear assembly plate. The rear lock seat is provided with a second rear push member corresponding to the second rear slot. The second rear push member has a second rear elastic portion at one end and a second rear oblique protrusion extending toward the other end. The second rear oblique protrusion passes through the second rear slot. A front support seat and a rear support seat are respectively provided on the lock bolt unit at locations corresponding to the second front oblique protrusion of the second front push member and the second rear oblique protrusion of the second rear push member. The easy-to-install door lock of claim 1 or 2, wherein the front lock unit has a screw tube mounted on its front assembly plate, and the rear lock unit has a through hole corresponding to a screw rod, which is locked to the screw tube to secure the front lock unit and the rear lock unit together. The easy-to-install door lock as described in claim 3, wherein the front assembly plate of the front lock unit is provided with an arcuate groove seat, and the rear assembly plate of the rear lock unit is provided with an arcuate plate, the arcuate plate being correspondingly embedded in the arcuate groove seat to allow the front lock unit and the rear lock unit to be assembled and aligned.