A multi-functional interior door lock

Abstract

This utility model relates to interior door locks, and more particularly to a multifunctional interior door lock. This utility model provides such a multifunctional interior door lock, including a front plate, a rear plate, nuts, bolts, and stabilizing blocks. The front plate is placed on the front side of the door, and the rear plate is placed on the rear side. Nuts are attached to both the upper and lower sides of the rear part of the front plate, and bolts are threaded onto both the upper and lower parts of the rear plate. The bolts engage with the nuts threadedly. Under the action of the bolts and nuts, the front and rear plates are fixed to the door. Stabilizing blocks are installed on the upper and lower parts of the inner walls of the front and rear plates. This utility model, through the cooperation of components such as the mounting base, U-shaped push plate, and first locking tongue, allows the first locking tongue to slide quickly as needed, thereby achieving the functions of locking and opening the door. Through the cooperation of components such as the second spring, second locking tongue, and push rod, the second locking tongue moves to the right until it engages with the latch, effectively adding a second layer of protection to the door, preventing it from being easily opened.

Description

Technical Field

[0001] This utility model relates to interior door locks, and more particularly to a multifunctional interior door lock. Background Technology

[0002] Locks are primarily designed to provide security and protection to prevent unauthorized access to or theft of property or information.

[0003] Patent publication number CN205936013U discloses a lock comprising a U-shaped lock rod and a lock block fitted onto the lock rod. Two limiting plates are symmetrically arranged on the lock rod, and two movable sleeves are symmetrically arranged on the lock rod. A spring engages between the movable sleeve and the limiting plates, and a limiting rod is fitted between the two movable sleeves. The lock block has a lock hole, and a V-shaped latch is provided on the inner surface of the lock rod. In use, this device limits the door rod using the limiting rod, and then locks it using the lock block. When the lock block is reversed, the spring is compressed, causing the door rod to move towards the limiting plates, leaving the lock hole open for key insertion. Although the above patent achieves the function of locking the door rod, people can still easily open the door, making it extremely easy to steal property or information.

[0004] Therefore, there is a particular need for a multifunctional interior door lock to address the problems existing in the current technology. Utility Model Content

[0005] In order to overcome the shortcomings of existing locks, which, although they achieve the function of locking the door bar, still allow people to easily open the door, making it extremely easy for property or information to be stolen, the technical problem of this utility model is to provide a multifunctional indoor door lock.

[0006] The technical solution of this utility model is as follows: a multifunctional indoor door lock, comprising a front plate, a rear plate, nuts, bolts, stabilizing blocks, a square core, a front lock body plate, a sealing plate, a rear lock body plate, a strike box, a lock cylinder, a mounting base, a U-shaped push plate, a first lock tongue, and a first spring. The front plate is placed on the front side of the door, and the rear plate is placed on the rear side. Nuts are attached to the upper and lower sides of the rear part of the front plate, and bolts are threaded on both the upper and lower parts of the rear plate. The front ends of the bolts engage with the threads of the nuts. Simultaneously, the front and rear plates are fixed to the door by the action of the bolts and nuts. Stabilizing blocks are installed on the upper and lower parts of the inner walls of the front and rear plates. A front lock body plate is welded to the rear side of the front plate, and the rear plate... The front side has a rear lock body plate, and the inner walls of the front lock body plate and the rear lock body plate are connected by a snap-fit. A sealing plate is provided between the left sides of the front lock body plate and the rear lock body plate. A square core is embedded between the middle of the front plate and the rear plate. The square core passes through the middle of the front lock body plate and the rear lock body plate respectively. A snap box is welded to the middle of the door frame. A lock cylinder is installed in the middle of the square core. A mounting seat is welded to the upper part of the inner wall of the front lock body plate and the rear lock body plate. A first lock tongue is slidably provided on the mounting seat. The first lock tongue is slidably engaged with the snap box. A U-shaped push plate is welded to the left end of the first lock tongue. A first spring is fitted on the first lock tongue. The right end of the first spring is connected to the first lock tongue, and the left end of the first spring is connected to the mounting seat.

[0007] As a preferred option, it also includes bearing handles, with bearing handles installed at both the front and rear ends of the square core.

[0008] Preferably, the device also includes a metal sheet, a second spring, a second latch, a push rod, and a fixing rod. The second spring is located on the lower right side of the sealing plate, and the top of the second spring is connected to the metal sheet. The second latch is slidably located on the lower part of the buckle plate. The left side of the second latch is connected to the right end of the metal sheet. A fixing rod is welded to the left side of the second latch. A push rod is slidably located on the fixing rod, and the upper part of the push rod is rotatably connected to the lock cylinder.

[0009] Preferably, it also includes a buckle plate, a horizontal key, and a knob. The buckle plate is connected between the upper and lower parts on the right side of the stabilizing block. The buckle plate is in contact with the buckle box. The left side of the buckle plate is connected to the front lock body plate and the rear lock body plate. The horizontal key is embedded in the lower part of the front lock body plate and the rear lock body plate. The horizontal key extends out of the front and rear plates on both the front and rear sides. A knob is provided on the rear side of the horizontal key.

[0010] As a preferred option, it also includes reversing pads, with reversing pads installed on both the front and rear sides of the square core, and the reversing pads engaging with the bearing handle.

[0011] Preferably, the knob has a rubber pad on its edge, which increases the friction between the knob and people's hands.

[0012] 1. This utility model, through the cooperation of components such as the mounting base, U-shaped push plate and first locking tongue, can quickly slide the first locking tongue according to needs, thereby realizing the functions of locking and unlocking the door.

[0013] 2. This utility model uses components such as a second spring, a second locking tongue, and a push rod to work together. After the second locking tongue moves to the right and engages with the latch box, it is equivalent to adding a second level of protection to the door, making the door less likely to be opened.

[0014] 3. This utility model, through the cooperation of components such as a horizontal key and a knob, can fix the second locking tongue in a designated position. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the stabilizer block, square core, and bearing handle of this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the mounting base, U-shaped push plate, and first locking tongue of this utility model.

[0018] Figure 4 This is a three-dimensional structural diagram of the first locking tongue and the first spring of this utility model.

[0019] Figure 5 This is a three-dimensional structural diagram of the rear lock body plate, buckle plate, and horizontal key of this utility model.

[0020] Figure 6 This is a three-dimensional structural diagram of the bearing handle, front lock plate, and knob components of this utility model.

[0021] Figure 7 This is a three-dimensional structural diagram of the buckle box of this utility model.

[0022] Figure 8 This is a three-dimensional structural diagram of the second locking tongue, push rod, and fixing rod of this utility model.

[0023] Figure 9 This is a three-dimensional structural diagram of the metal sheet, second spring, and lock core components of this utility model.

[0024] Figure 10 This is a three-dimensional structural diagram of the front panel and reversing pad of this utility model.

[0025] Explanation of reference numerals in the attached drawings: 1-Front plate, 101-Rear plate, 2-Nut, 3-Bolt, 4-Stabilizing block, 5-Square core, 6-Bearing handle, 7-Front lock body plate, 701-Sealing plate, 8-Rear lock body plate, 801-Snap box, 9-Snap plate, 10-Horizontal key, 11-Knob, 12-Lock cylinder, 13-Reversing pad, 14-Mounting base, 15-U-shaped push plate, 16-First bolt, 17-First spring, 18-Metal sheet, 19-Second spring, 20-Second bolt, 21-Push rod, 22-Fixing rod. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0027] Example 1 A multifunctional interior door lock, as described in a preferred embodiment of this utility model, is as follows: Figures 1-10As shown, the lock includes a front plate 1, a rear plate 101, a nut 2, a bolt 3, a stabilizing block 4, a square core 5, a bearing handle 6, a front lock body plate 7, a sealing plate 701, a rear lock body plate 8, a latch box 801, a latch plate 9, a horizontal key 10, a knob 11, a lock cylinder 12, a reversing pad 13, a mounting base 14, a U-shaped push plate 15, a first latch 16, a first spring 17, a metal sheet 18, a second spring 19, a second latch 20, a push rod 21, and a fixing rod 22. The front plate 1 is placed on the front side of the door, and the rear plate 101 is placed on the rear side of the door. Nuts 2 are attached to both the upper and lower sides of the rear part of the front plate 1. Bolts 3 are threaded on both the upper and lower parts of the rear plate 101. The front end of the bolt 3 is threadedly engaged with the nut 2. Under the action of the nut 2, the front plate 1 and the rear plate 101 are fixed to the door. The stabilizing blocks 4 are installed on the upper and lower parts of the inner walls of the front plate 1 and the rear plate 101. The front lock plate 7 is welded to the rear side of the front plate 1, and the rear lock plate 8 is provided on the front side of the rear plate 101. The inner walls of the front lock plate 7 and the rear lock plate 8 are interlocked. A sealing plate 701 is provided between the left sides of the front lock plate 7 and the rear lock plate 8. A square core 5 is embedded between the middle of the front plate 1 and the rear plate 101. The square core 5 protrudes from the middle of the front lock plate 7 and the rear lock plate 8. A latch box 801 is welded to the middle of the door frame. The lock cylinder 12 is installed in the middle of the square core 5. The front lock plate 7 and the... The mounting base 14 is welded to the upper part of the inner wall of the rear lock body plate 8. The first lock tongue 16 is slidably provided on the mounting base 14. The first lock tongue 16 is slidably engaged with the buckle box 801. The U-shaped push plate 15 is welded to the left end of the first lock tongue 16. The first spring 17 is fitted on the first lock tongue 16. The right end of the first spring 17 is connected to the first lock tongue 16, and the left end of the first spring 17 is connected to the mounting base 14. The bearing handles 6 are installed at both ends of the square core 5. The second spring 19 is provided on the lower right side of the sealing plate 701. The metal piece 18 is connected to the top of the second spring 19. The second lock tongue 20 is slidably provided on the lower part of the buckle plate 9. The second lock tongue 20 is located on the left side. The second latch 20 is connected to the right end of the metal sheet 18. The fixing rod 22 is welded to the left side of the second latch 20. The push rod 21 is slidably provided on the fixing rod 22. The upper part of the push rod 21 is rotatably connected to the lock cylinder 12. The buckle plate 9 is connected between the upper and lower parts of the right side of the stabilizing block 4. The buckle plate 9 is in contact with the buckle box 801. The left side of the buckle plate 9 is connected to the front lock body plate 7 and the rear lock body plate 8. The horizontal key 10 is embedded in the lower part of the front lock body plate 7 and the rear lock body plate 8. The horizontal key 10 extends through the front plate 1 and the rear plate 101 on both the front and rear sides. The knob 11 is rotatably provided on the rear side of the horizontal key 10. The reversing pad 13 is installed on both the front and rear sides of the square core 5.

[0028] When people need to use this lock, they can first install the latch box 801 in the middle of the door frame. Then, the workers can place the front lock body plate 7, the rear lock body plate 8, and the latch box 801 into the middle of the door edge. Next, the front plate 1 and the rear plate 101 can be placed in the preset positions on the door. Then, the bolt 3 can be screwed into the nut 2. Under the action of the bolt 3 and the nut 2, the front plate 1, the rear plate 101, and the front lock body plate 7 will be fixed to the door. When the door moves the first latch 16 closer to the latch box 801, the first spring 17 is compressed. When the first latch 16 is engaged in the latch box 801, the return action of the first spring 17 will cause the first latch 16 to... Sliding to the right within the mounting base 14 causes the U-shaped push plate 15 to move accordingly, fixing the first latch 16 in place with the latch box 801. Consequently, the front lock body plate 7 and the rear lock body plate 8 are also fixed, thus securing the door. To open the door, the square core 5 is rotated, causing the lock cylinder 12 to rotate. This rotation pushes the U-shaped push plate 15 to the left, moving the first latch 16 to the left and compressing the first spring 17. When the first latch 16 moves to the left and disengages from the latch box 801, the door can be opened. Once the door is fully open, the rotation of the square core 5 can be stopped. The first spring 17's reset action causes the first latch 16 to slide back to the right within the mounting base 14, allowing people to quickly slide the first latch 16 as needed, thus achieving the door locking and unlocking functions. Workers can rotate the bearing handle 6 up and down as needed. The rotation of the bearing handle 6 allows the square core 5 to rotate adaptively, making it easier for people to turn and effectively reducing the chance of the square core 5 slipping from their hands. When the lock cylinder 12 rotates, it causes the push rod 21 to move. The movement of the push rod 21, via the fixed rod 22, causes the second latch 20 to move to the left on the strike plate 9. The second spring 19 deforms, and the metal plate 18... The second latch 20 will disengage from the strike plate 801 as the door moves adaptively. When the lock cylinder 12 stops rotating, the second spring 19 will reset the metal plate 18. Subsequently, the push rod 21 moves through the fixing rod 22, causing the second latch 20 to move to the right on the strike plate 9. After the second latch 20 moves to the right and engages with the strike plate 801, it effectively adds a second layer of protection to the door, preventing it from being easily opened. If people are outside the door, they can use the key to turn the horizontal key 10, which will fix the second latch 20 in place, thus ensuring that the second latch 20 remains fixed in the designated position. If people are inside the door, staff can turn the knob 11.The knob 11 also rotates the horizontal key 10. By controlling the rotation of the horizontal key 10, the second latch 20 is fixed in a designated position. Considering the inconsistent installation directions of the doors, the bearing handle 6 can be removed first. Then, the direction of the reversing pad 13 can be changed as needed. The bearing handle 6 can then be snapped back onto the square core 5. When the bearing handle 6 contacts the reversing pad 13, the reversing pad 13 will fix the bearing handle 6 in place. This allows for quick reversal of the bearing handle 6 as needed, effectively improving its applicability. The reversing pad 13 engages with the bearing handle 6.

[0029] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of the present invention and should not be construed as limiting the scope of protection of the present invention in any way. Based on this explanation, those skilled in the art can conceive of other specific embodiments of the present invention without creative effort, and these embodiments will all fall within the scope of protection of the present invention.

Claims

1. A multifunctional interior door lock, characterized by: The system includes a front plate (1), a rear plate (101), a nut (2), a bolt (3), a stabilizing block (4), a square core (5), a front lock body plate (7), a sealing plate (701), a rear lock body plate (8), a latch box (801), a lock cylinder (12), a mounting base (14), a U-shaped push plate (15), a first lock tongue (16), and a first spring (17). The front plate (1) is placed on the front side of the door, and the rear plate (101) is placed on the rear side of the door. The front plate (1) has two upper and lower sections at the rear. Nuts (2) are attached to both sides. Bolts (3) are threaded on both the upper and lower parts of the rear plate (101). The front end of the bolt (3) is threaded with the nut (2). Under the action of the bolt (3) and the nut (2), the front plate (1) and the rear plate (101) will be fixed to the door. Stabilizing blocks (4) are installed on both the upper and lower parts of the inner walls of the front plate (1) and the rear plate (101). A front lock body plate (7) is welded to the rear side of the front plate (1), and a rear lock body is provided on the front side of the rear plate (101). The inner walls of the front lock plate (7) and the rear lock plate (8) are interlocked. A sealing plate (701) is provided between the left sides of the front lock plate (7) and the rear lock plate (8). A square core (5) is embedded between the middle of the front plate (1) and the rear plate (101). The square core (5) protrudes from the middle of the front lock plate (7) and the rear lock plate (8). A snap box (801) is welded to the middle of the door frame. A lock cylinder (12) is installed in the middle of the square core (5). The front lock plate (7) and the rear lock plate (8) are interlocked. A mounting base (14) is welded to the upper part of the inner wall of the rear lock body plate (8). A first locking tongue (16) is slidably provided on the mounting base (14). The first locking tongue (16) is slidably engaged with the buckle box (801). A U-shaped push plate (15) is welded to the left end of the first locking tongue (16). A first spring (17) is fitted on the first locking tongue (16). The right end of the first spring (17) is connected to the first locking tongue (16), and the left end of the first spring (17) is connected to the mounting base (14).

2. A multifunctional interior door lock according to claim 1, characterized in that: It also includes a bearing handle (6), with bearing handles (6) installed at both the front and rear ends of the square core (5).

3. A multifunctional interior door lock according to claim 2, characterized in that: It also includes a metal sheet (18), a second spring (19), a second latch (20), a push rod (21), and a fixing rod (22). The lower right side of the sealing plate (701) is provided with a second spring (19), and the top of the second spring (19) is connected to a metal sheet (18). The lower part of the buckle plate (9) is provided with a second latch (20), the left side of the second latch (20) is connected to the right end of the metal sheet (18), and a fixing rod (22) is welded to the left side of the second latch (20). A push rod (21) is provided on the fixing rod (22), and the upper part of the push rod (21) is rotatably connected to the lock cylinder (12).

4. A multifunctional interior door lock according to claim 3, characterized in that: It also includes a snap plate (9), a horizontal key (10) and a knob (11). The snap plate (9) is connected between the upper and lower parts on the right side of the stabilizing block (4). The snap plate (9) is in contact with the snap box (801). The left side of the snap plate (9) is connected to the front lock body plate (7) and the rear lock body plate (8). The horizontal key (10) is embedded in the lower part of the front lock body plate (7) and the rear lock body plate (8). The horizontal key (10) extends through the front plate (1) and the rear plate (101) on both the front and rear sides. The knob (11) is provided on the rear side of the horizontal key (10) in a rotating manner.

5. A multifunctional interior door lock according to claim 4, characterized in that: It also includes a reversing pad (13), and the reversing pad (13) is installed on both the front and rear sides of the square core (5). The reversing pad (13) is engaged with the bearing handle (6).

6. A multifunctional interior door lock according to claim 5, characterized in that: The knob (11) has a rubber pad on its edge, which increases the friction between the knob (11) and people's hands.

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