TWI900047B - Easy-to-install door locks - Google Patents

Abstract

The present invention provides an easy-to-install door lock, which includes 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 push piece including an elastic portion, an elastic pressure section and a top protrusion, and the two sides of the bolt unit are locked with a built-in push seat, the push seat is provided with a corresponding push piece. Wedge-shaped surfaces; this design allows the user to align the front and rear locking units on the door panel. The elastic pressure sections of the push members on both sides and the corresponding protrusions engage the wedge-shaped surfaces of the push seat on the bolt unit, enhancing the spring-loaded push function and positioning the bolt unit against the side of the door panel, effectively achieving 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 Patent Publication No. I838285, "Door Lock," and Patent Application Nos. 113111189 and 113111190, "Easy-to-Install Door Lock," to address these shortcomings. Now, in the spirit of continuous improvement and tireless dedication to developing door locks, the inventors have once again provided another "Easy-to-Install Door Lock" designed to offer convenient assembly.

To address the aforementioned shortcomings of the existing technology, the primary objective of this invention is to provide a door lock technology that is easy to assemble. This technology utilizes the elastic pressure-detent section of the push member and the wedge-shaped contact surface of the convex portion to enhance the elastic force of the push member to position the 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 curved upper seat corresponds to the curved lower seat, 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 push piece comprising an elastic portion, an elastic pressure section and a top protrusion, and the two sides of the bolt unit are locked with a built-in push seat. The push-on seat features a wedge-shaped surface that aligns with the pusher. This design allows the user to align the front and rear lock units on the door panel. The elastic pressure sections of the pusher on both sides and the corresponding protrusions engage the wedge-shaped surface of the push-on seat on the bolt unit, enhancing the spring-loaded push-on function and positioning the bolt unit against the door panel, effectively achieving simple and convenient installation.

The front locking unit has a front locking arch seat provided on the front assembly plate. The front locking arch seat has a screw hole, and the rear locking unit has a through hole corresponding to a screw rod. The rear assembly plate has a rear locking arch seat corresponding to the front locking arch seat. The rear locking arch seat has a recessed area with a through hole for the screw rod to pass through. The screw rod is locked to the screw hole of the front locking arch seat to assemble and position the front and rear locking units.

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

After the screw is inserted through the corresponding through-hole and the through-hole, a positioning member is embedded in the outer side of the through-hole of the rear lock unit. The positioning member can position the screw in the rear lock unit and the rear assembly plate.

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 forward elastic compression section

253: First frontal convex part

26: Second front slot hole

27: Second front push piece

271: Second front elastic part

272: Second forward elastic compression section

273: Second front convex part

28: Front locking bracket

281: Screw hole

282: Internal Pivot Surface

283: Inward guide surface

29: Arc-shaped upper 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 elastic compression section

343: First posterior apex

35: Second rear slot hole

36: Second rear push piece

361: Second posterior elastic part

362: Second elastic compression section

363: Second posterior apex

37: Perforation

38: Rear lock bracket

381: Recess

382: Perforation

39: Arc-shaped lower seat

4: Locking unit

41: Keyhole

42: Front push seat

421: Anterior wedge face

43: Rear push seat

431: Posterior wedge face

44: Front support seat

45: Rear support seat

5: Screw

51: External axis displacement surface

52: External guide surface

6: Positioning piece

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.

Figure 8 (A) and (B) are schematic diagrams comparing the compression of the front elastic compression section (A) of the front push member and the rear elastic compression section (B) of the rear push member of the present invention.

Figure 9: An enlarged cross-sectional view of the screw of the present invention before it is locked into the screw hole of the arc seat.

The present invention is described below in detail using the accompanying drawings and examples. The figures used herein are for illustrative purposes only and to assist in the description. They do not necessarily reflect the actual scale and precise configuration of the invention after implementation. Therefore, the scale and configuration of the accompanying drawings should not be used to limit the patent scope of the 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 disc (22) assembled on the front lock seat (21). A lock core assembly (23) is installed on the front lock seat (21) and passes through the front assembly disc (22). A first front slot (24) is provided on one side of the front assembly disc (22). A first front pushing member (25) is provided, and one end of the first front pushing member (25) is provided with two first front elastic parts (251), and a first front elastic pressure section (252) is integrally extended from the ends of the two first front elastic parts (251), and a first front top protrusion (253) is provided at one end of the first front elastic pressure section (252). A front elastic pressure-depressing section (252) and the first front top protrusion (253) pass through the first front slot hole (24); in addition, a second front slot hole (26) is provided on the other side of the front assembly plate (22), and a second front push piece (27) is provided in the front lock seat (21), one end of the second front push piece (27) is provided with two second front elastic parts (271), and a second front elastic pressure-depressing section (272) is integrally extended from the ends of the two second front elastic parts (271), and a second front top protrusion (273) is provided from one end of the second front elastic pressure-depressing section (272), and the second front top protrusion (273) pass through the second front slot hole (26).

The rear lock unit (3) includes a rear lock base (31) and a rear assembly plate (32) assembled on the rear lock base (31). A first rear slot (33) is provided on the rear assembly plate (32), and the rear lock base (31) is provided with a first rear push piece (34) corresponding to the first rear slot (33). One end of the first rear push piece (34) is provided with two first rear elastic parts (341), and a first rear elastic pressure-detent section (342) is integrally extended from the ends of the two first rear elastic parts (341). A first rear convex section (343) is provided at one end of the first rear elastic pressure-detent section (342). The first rear elastic pressure-detent section (342) and the first rear convex section (343) are provided. ) passes through the first rear slot hole (33); in addition, a second rear slot hole (35) is provided on the side of the first rear slot hole (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 hole (35), one end of the second rear push piece (36) is provided with two second rear elastic parts (361), and a second rear elastic pressure-detent section (362) is integrally extended from the end of the two second rear elastic parts (361), and a second rear convex section (363) is provided from one end of the second rear elastic pressure-detent section (362), and the second rear elastic pressure-detent section (362) and the second rear convex section (363) pass through the second rear slot hole (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 member (25) and the first rear push member (34), and the front push seat (42) is provided with a front wedge surface portion (421) at the position corresponding to the first front top protrusion (253) of the first front push member (25). The rear push seat (43) is provided with a rear wedge surface portion (431) corresponding to the first rear convex portion (343) of the first rear push member (34); in addition, the front support seat (44) and the rear support seat (45) are respectively provided on the lock bolt unit (4) corresponding to the second front convex portion (273) of the second front push member (27) and the second rear convex portion (363) of the second rear push member (36).

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 the application No. 113111189, 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) 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) can be inserted into the lock hole (41) of the bolt unit (4). The first front protrusion (253) of the first front push member (25) contacts the front wedge portion (421) of the front push seat (42) of the lock bolt unit (4), and the first rear protrusion (343) of the first rear push member (34) of the rear lock unit (3) contacts the rear wedge portion (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) [as shown in the third figure].

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 front locking arc seat (28) on the front assembly plate (22) of the front locking unit (2), and a screw hole (281) is provided on the front locking arc seat (28), and the rear locking unit (3) is provided with a through hole (37) corresponding to a screw (5) through the assembly, and the rear assembly plate (32 ) A rear locking arc seat (38) is provided corresponding to the front locking arc seat (28), a recess (381) is provided on the rear locking arc seat (38), and a through hole (382) is provided in the recess (381) for the screw (5) to pass through. When the screw (5) passes through the through hole (37) and the through hole (382), a positioning piece (6) is embedded in the outer side of the through hole (37) of the rear locking unit (3). The component (6) can position the screw (5) in the rear locking unit (3) and the rear assembly plate (32), so that the screw (5) is locked in the screw hole (281) of the front locking arc seat (28) to position the front locking unit (2) and the rear locking unit (3); and when the front locking unit (2) and the rear locking unit (3) are assembled, in order to reduce assembly errors and alignment problems, a foolproof device can be used. The installation is aligned to ensure correct assembly, and the anti-mistake device includes an arc-shaped upper seat (29) provided on the front assembly plate (22) of the front lock unit (2), and an arc-shaped lower seat (39) provided on the rear assembly plate (32) of the rear lock unit (3). The arc-shaped lower seat (39) is correspondingly embedded in the arc-shaped upper seat (29) to provide the anti-mistake assembly alignment of the front lock unit (2) and the rear lock unit (3).

Please return to the third figure and refer to the fifth and sixth figures at the same time. When the screw (5) is locked in the screw hole (281) of the front locking arc seat (28) as shown in the fifth figure, 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 push member (25) and the first rear push member (25) are locked. The first rear elastic portion (341) of the push member (34) is pressed and compressed, and because the first front convex portion (253) and the first rear convex portion (343) correspond to the front wedge portion (421) of the front push seat (42) and the rear wedge portion (431) of the rear push seat (43), when the screw (5) is gradually locked, the first front convex portion (253) is pressed and compressed. ) and the first rear top protrusion (343) exert 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), and at the same time, compress the first front elastic pressure-delaying section (252) and the first rear elastic pressure-delaying section (342). When fully locked, the compressed first front elastic pressure-delaying section (252) 52) and the first rear elastic pressure section (342) will also send back a rebound force, making it more tightly pressed against 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 lock bolt unit (4) to move backward (into the door panel) and become more secure; thus, the assembly between the door lock and the door panel (1) is completed.

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) is used to correspondingly support the front support seat (44) and the second rear push piece (36) is used to correspondingly support the rear support seat (45) 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 protrusion (273) of the second front push piece (27) contacts the front support seat (44), and the second rear push piece (36) The second rear top protrusion (363) contacts the rear support seat (45) to provide 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 compression section (272) of the second front push member (27) and the second rear elastic compression section (362) of the second rear push member (36) are compressed. The compressed elastic force pushes the second front top protrusion (273) and the second rear top protrusion (363) to embed into the front and rear support seats (44) and (45) to support and limit.

It is worth mentioning that the present invention uses the front and rear wedge portions (421), (431) to cooperate with the first front push piece (25) and the first rear push piece (34) to have an elastic portion and a convex portion, so as to compress the elastic force of the first front elastic pressure-detent section (252) and the first rear elastic pressure-detent section (342) to push the locking bolt unit (4) into the locking bolt hole (12). The first front elastic portion (251) and the first rear elastic portion (341) mainly provide elastic pushing force to lock the locking bolt unit (4) backwards, and the compression amount of the second front elastic pressure-detent section (272) and the second rear elastic pressure-detent section (362) used for support is different [as shown in FIG. As shown in Figures (A) and (B) of the eighth embodiment, the two have a buffering effect during the assembly process, which can increase the degree of assembly fit and avoid the problem of poor assembly due to errors in structural dimensions. Moreover, due to the aforementioned buffering effect, door panels (1) of different thicknesses can be applied for assembly [see Figure 7]. When the door lock of the present invention is assembled on door panels (1) of different thicknesses [such as thicker door panels], the compression amount of the elastic compression sections of the front and rear push members will be different from that of normal door panels, and the locking bolt unit (4) can also be tightly attached to the side of the door panel (1). Therefore, in addition to the convenient assembly effect, the design of the door lock of the present invention is widely applicable to the thickness of door panels (1) of different door types currently on the market and still has better applicability.

Please refer to FIG9, another embodiment of the present invention shows that when the screw (5) is locked into the screw hole (281) of the front lock arc seat (28), the external thread of the screw (5) is composed of a plurality of parallel external thread rails, each of which is formed with an external axis displacement surface (51) and two external guide surfaces (52) extending obliquely from two sides of the external axis displacement surface (51); and the screw hole (281) is composed of a plurality of parallel internal thread rails, each of which is formed with an internal thread rail corresponding to the external axis displacement surface (51). The inner guide surface (283) is provided with an inner guide surface (283) extending obliquely from both sides of the inner guide surface (282), and the inner guide surface (283) is opposite to the outer guide surface (52); during the assembly of the door lock, when the outer groove track of the screw rod (5) is screwed with the inner groove track of the screw hole (281) of the front lock arc seat (28), the design of the inner guide surface (282) and the outer guide surface (51) respectively makes the screwing speed faster when the screws are screwed together, so that the door lock has the effect of convenient assembly.

The advantages of this invention are as follows:

1. The elastic pressure-detent section and the convex portion of the push member of this invention abut against the wedge surface to enhance the elastic force. The spring-loaded abutment helps position the bolt unit, allowing the installer to easily and conveniently secure the bolt unit within the bolt hole of the door panel, achieving the advantage of easy installation.

2. This invention utilizes a fool-proof design where the curved upper seat corresponds to the curved lower seat, 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.

4. The present invention utilizes a wide-strip threaded screw, which allows for faster threading speed when the screws are screwed together, making the door lock easy to assemble.

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 forward elastic compression section

253: First frontal convex part

26: Second front slot hole

27: Second front push piece

271: Second front elastic part

272: Second forward elastic compression section

273: Second front convex part

28: Front locking bracket

281: Screw hole

29: Arc-shaped upper 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 elastic compression section

343: First posterior apex

35: Second rear slot hole

36: Second rear push piece

361: Second posterior elastic part

362: Second elastic compression section

363: Second posterior apex

37: Perforation

38: Rear lock bracket

381: Recess

382: Perforation

39: Arc-shaped lower seat

4: Locking unit

41: Keyhole

42: Front push seat

421: Anterior wedge face

44: Front support seat

5: Screw

6: Positioning piece

Claims (6)

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 is provided with a main hole and a bolt hole extending from the main hole to the side. The main hole is provided for the front lock unit and the rear lock unit to be assembled with each other, and the bolt unit is correspondingly inserted into the bolt hole and installed and positioned between the front lock unit and the rear lock unit. The front lock unit comprises a front lock base and a front assembly plate assembled on the front lock base. A lock core assembly is mounted on the front lock seat and passes through the front assembly plate. A first front slot is provided on one side of the front assembly plate. A first front push piece is provided in the front lock seat. One end of the first front push piece is provided with two first front elastic parts, and a first front elastic pressure section is integrally extended from the ends of the two first front elastic parts. A first front top convex part is provided at one end of the first front elastic pressure section. The first front elastic pressure section, the first front top convex part, The convex portion passes through the first front slot; the rear lock unit includes a rear lock seat and a rear assembly plate assembled on the rear lock seat, a first rear slot is provided on the rear assembly plate, and the rear lock seat is provided with a first rear push piece corresponding to the first rear slot, one end of the first rear push piece is provided with two first rear elastic parts, and a first rear elastic pressure section is integrally extended from the end of the two first rear elastic parts, and a first rear convex portion is provided at one end of the first rear elastic pressure section The first rear elastic pressure-detent section and the first rear protrusion extend through the first rear slot. The lock bolt unit is provided with a lock hole for the lock core assembly to pass through. 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 protrusion of the first front push member, while the rear push seat is provided with a rear wedge surface corresponding to the first rear protrusion of the first rear push member. The easy-to-install door lock as described in claim 1, wherein a second front slot is provided on the other side 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 two second front elastic parts, and a second front elastic pressure-detent section is integrally extended from the end of the two second front elastic parts, and a second front top convex section is provided from one end of the second front elastic pressure-detent section, the second front elastic pressure-detent section and the second front top convex section pass through the second front slot; a second rear slot is provided on the side of the first rear slot of the rear assembly plate, and The rear lock seat is provided with a second rear pusher corresponding to the second rear slot. Two second rear elastic portions are provided at one end of the second rear pusher. A second rear elastic pressure-detent section integrally extends from the ends of the two second rear elastic portions. A second rear convex portion is provided at one end of the second rear elastic pressure-detent section. The second rear elastic pressure-detent section and the second rear convex portion extend 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 convex portion of the second front pusher and the second rear convex portion of the second rear pusher. The easy-to-install door lock as described in claim 1 or 2, wherein a front lock arch seat is provided on a front assembly plate of the front lock unit, the front lock arch seat is provided with a screw hole, the rear lock unit is provided with a through hole corresponding to a screw rod, and the rear assembly plate is provided with a rear lock arch seat corresponding to the front lock arch seat, the rear lock arch seat is provided with a recess, and a through hole is provided in the recess for the screw rod to pass through, so that the screw rod is locked to the screw hole of the front lock arch seat to assemble and position the front lock unit and the rear lock unit. The easy-to-install door lock as described in claim 3, wherein the curved upper seat is provided on the front assembly plate of the front lock unit, and the curved lower seat is provided on the rear assembly plate of the rear lock unit, wherein the curved lower seat is correspondingly embedded in the curved upper seat to ensure foolproof assembly alignment of the front lock unit and the rear lock unit. The easy-to-install door lock of claim 3, wherein after the screw is inserted through the corresponding through-hole and the through-hole, a positioning member is embedded in the outer side of the through-hole of the rear lock unit to position the screw in the rear lock unit and the rear assembly plate. The easy-to-install door lock as described in claim 3, wherein the screw is composed of a plurality of parallel outer threaded rails, each outer threaded rail forming an outer pivoting surface and two outer guide surfaces extending obliquely from two sides of the outer pivoting surface; and the screw hole is composed of a plurality of parallel inner threaded rails, each inner threaded rail forming an inner pivoting surface corresponding to the outer pivoting surface and two inner guide surfaces extending obliquely from two sides of the inner pivoting surface, with the inner guide surfaces opposing the outer guide surfaces.