Novel lock body structure

Abstract

The utility model discloses a novel lock body structure, which belongs to the technical field of locksets and comprises a cover plate component, a dead bolt component, an inclined bolt component, a lock cylinder and a handle, the dead bolt component, the inclined bolt component, the lock cylinder and the handle are positioned in the cover plate component, the cover plate component is provided with a lock cylinder hole and a handle hole which correspond to each other, and the lock cylinder hole and the handle hole are positioned at two ends of the cover plate component. The dead bolt assembly and the inclined bolt assembly are located between the lock cylinder hole and the handle hole. The dead bolt assembly comprises a dead bolt head and a lock body, and the lock cylinder is linked with the dead bolt assembly through the swinging block; the latch bolt assembly comprises a latch bolt head and a guide plate, the handle is in linkage with the latch bolt assembly through the shifting fork, the shifting fork piece and the latch bolt shifting piece, and the dead bolt assembly is in linkage with the latch bolt assembly through the reversing piece spring and the latch bolt reversing piece. The distance between the lock cylinder hole and the handle hole is far, the hole distance is increased under the condition that the overall size of the lock is small, operation is convenient, and meanwhile cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of lock technology, and in particular relates to a novel lock body structure. Background Technology

[0002] Currently, the distance between the handle hole and the lock cylinder hole (hereinafter referred to as hole distance) of commonly used interior door lock bodies is relatively short, mostly around 58mm. If a lock body of this size is fitted with a separate handle, the handle decorative cover and the lock cylinder cover will be quite close (i.e., the corresponding handle hole and the corresponding lock cylinder hole will be quite close). On the one hand, this will affect the overall harmony; on the other hand, when the user presses down on the handle, their hand is likely to hit the lock cylinder cover, affecting the user experience.

[0003] To address this issue, lock bodies with hole spacing of 68mm, 72mm, and 85mm have been introduced to the market. However, these lock bodies are generally large in size and have a high cost.

[0004] Therefore, a new, compact lock body structure with a large hole spacing is needed to increase the hole spacing while keeping the size small, making operation easier and reducing costs. Utility Model Content

[0005] The purpose of this invention is to provide a novel lock body structure to solve the problems existing in the background art.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A novel lock body structure includes a cover plate assembly and a square latch assembly, a beveled latch assembly, a lock cylinder, and a handle located within the cover plate assembly. The cover plate assembly has corresponding lock cylinder holes and handle holes. The cover plate assembly includes a lower cover plate, an upper cover plate, and a front panel. The lock cylinder holes and handle holes are located at both ends of the cover plate assembly, and the square latch assembly and the beveled latch assembly are located between the lock cylinder holes and the handle holes.

[0008] The square tongue assembly includes a square tongue and a lock body. The lock body is provided with swing blocks on both the upper and lower sides. The swing blocks cooperate with the lever of the lock cylinder. The lock cylinder is linked to the square tongue assembly through the swing blocks.

[0009] The oblique tongue assembly includes an oblique tongue and a guide plate. A matching oblique tongue paddle is provided below the guide plate. A paddle fork and a paddle fork piece are provided at the position of the handle hole. The paddle fork piece and the oblique tongue paddle piece are connected by teeth. The handle is connected to the paddle fork through a square bar. The handle is linked to the oblique tongue assembly through the paddle fork, paddle fork piece and oblique tongue paddle piece.

[0010] A commutator spring and a commutator plate are provided between the oscillating block and the commutator plate, and the square tongue assembly is connected to the commutator plate assembly through the commutator spring and the commutator plate.

[0011] Furthermore, the guide plate has a cross-shaped structure, and the upper cover plate and the lower cover plate are provided with slots corresponding to the position of the guide plate. The guide plate is slidably connected to the upper cover plate and the lower cover plate through the slots, and the tail of the guide plate is provided with a slanted tongue spring.

[0012] Furthermore, one end of the oblique tongue paddle is rotatably connected to the lower cover plate via an oblique tongue paddle pin, and a slot is provided below the guide plate for the oblique tongue paddle to pass through.

[0013] Furthermore, the shift fork is rotatably connected to the handle hole, the shift fork plate is sleeved on the outside of the shift fork and engaged with the shift fork, and shift fork washers are provided at the upper and lower ends of the shift fork.

[0014] Furthermore, a fork spring is provided on the outer circumference of the fork, the fork spring is connected to the fork plate, and the fork plate is reset by the fork spring.

[0015] Furthermore, the tail of the lock body is provided with a strip-shaped hole, and the lower cover plate is provided with a mounting pin at the position corresponding to the strip-shaped hole. The lock body is slidably connected to the lower cover plate through the strip-shaped hole and the mounting pin.

[0016] Furthermore, the middle part of the swing block is rotatably connected to the mounting pin, the middle part of the lock body is provided with an L-shaped groove, one end of the swing block is provided with a swing block pin, the swing block pin is inserted into the L-shaped groove and slidably connected with the L-shaped groove.

[0017] Furthermore, a limiting spring is provided on the side of the swing block away from the swing block nail. One end of the limiting spring is connected to the lower cover plate, and the other end of the limiting spring is connected to the swing block.

[0018] Furthermore, the upper and lower ends of the slanted tongue commutator are rotatably connected to the upper cover plate and the lower cover plate, respectively; one end of the commutator spring is connected to the slanted tongue commutator; the other end of the commutator spring is connected to the swing block; and one end of the slanted tongue commutator abuts against the slanted tongue lever.

[0019] The beneficial effects of this utility model are:

[0020] 1) The lock cylinder is linked to the square bolt assembly via a sway block, and the handle is linked to the latch bolt assembly via a fork, fork plate, and latch plate; simultaneously, the square bolt assembly is linked to the latch bolt assembly via a reversing spring and latch bolt reversing plate. The entire lock has a simple structure, ingenious connections, and is easy to install and operate, while also reducing the size of the lock and lowering costs.

[0021] 2) The distance between the lock cylinder hole and the handle hole is relatively large. Increasing the hole distance while keeping the overall size of the lock small facilitates operation and reduces costs. Attached Figure Description

[0022] Figure 1 This is a top view of a novel lock body structure of this utility model after removing the top cover plate;

[0023] Figure 2 for Figure 1 Sectional view at point AA;

[0024] Figure 3 for Figure 1 Sectional view at point BB;

[0025] Figure 4 This is a perspective view of the oblique tongue component in this utility model;

[0026] Figure 5 This is a perspective view of the shift fork in this utility model;

[0027] Figure 6 This is a perspective view of the shift fork in this utility model;

[0028] In the diagram, 1-lower cover plate, 101-lock cylinder hole, 102-handle hole, 2-front panel, 31-square tongue, 32-lock body, 33-L-shaped groove, 34-strip hole, 35-mounting pin, 4-reversing plate spring, 5-slanted tongue reversing plate, 61-slanted tongue, 62-guide plate, 7-slanted tongue paddle pin, 8-paddle fork, 9-paddle fork, 10-paddle fork washer, 11-paddle fork spring, 12-slanted tongue paddle, 13-slanted tongue spring, 14-limit spring, 15-swing block, 16-swing block pin. Detailed Implementation

[0029] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] See Figures 1-6 This utility model provides a technical solution:

[0031] like Figures 1-6 As shown, a novel lock body structure includes a cover plate assembly and a square latch assembly, a bevel latch assembly, a lock cylinder, and a handle located within the cover plate assembly. The cover plate assembly includes a lower cover plate 1, an upper cover plate, and a front panel 2, wherein the front panel 2 and the lower cover plate 1 are fixed together by bolts, and the upper cover plate and the lower cover plate 1 are fixed together by screws.

[0032] The cover plate assembly is provided with corresponding lock cylinder hole 101 and handle hole 102. The lock cylinder hole 101 and handle hole 102 are located at both ends of the cover plate assembly. The square tongue assembly and the oblique tongue assembly are located between the lock cylinder hole 101 and handle hole 102. This arrangement makes the distance between the lock cylinder hole 101 and handle hole 102 relatively large, which increases the hole spacing while keeping the overall size of the lock small, making operation more convenient and reducing costs.

[0033] Because the distance between the lock cylinder hole 101 and the handle hole 102 has been adjusted, the internal linkage structure has been changed accordingly.

[0034] like Figures 1-4 As shown, the tongue assembly includes a tongue 61 and a guide plate 62. A matching tongue paddle 12 is provided below the guide plate 62. A fork 9 and a fork piece 8 are provided at the handle hole 102. The fork piece 8 is connected to the tongue paddle 12 via a toothed engagement. The handle is connected to the fork 9 via a square bar. The handle is linked to the tongue assembly via the fork 9, fork piece 8, and tongue paddle 12. The guide plate 62 has a cross-shaped structure. The upper and lower cover plates 1 have slots corresponding to the guide plate 62. The guide plate 62 is slidably connected to the upper and lower cover plates 1 via these slots. A tongue spring 13 is provided at the tail of the guide plate 62. One end of the tongue paddle 12 is rotatably connected to the lower cover plate 1 via a tongue paddle pin 7. A slot for the tongue paddle 12 to pass through is provided below the guide plate 62. The shift fork 9 is rotatably connected to the handle hole 102. The shift fork plate 8 is sleeved on the shift fork 9 and engaged with the shift fork 9. Shift fork washers 10 are provided at the upper and lower ends of the shift fork 9. A shift fork spring 11 is provided on the outer circumference of the shift fork 9. The shift fork spring 11 is connected to the shift fork plate 8, and the shift fork plate 8 is reset by the shift fork spring 11.

[0035] Through the above technical solution, the latch assembly pushes the latch tongue 61 out of the front panel 2 under the elastic force of the latch tongue spring 13. The latch tongue lever 12 is fixed on the lower cover plate 1 by the latch tongue lever lever pin 7. The latch tongue lever 12 can rotate around the latch tongue lever pin 7. The left side of the latch tongue lever 12 passes through the slot below the guide plate 62. When the latch tongue lever 12 rotates counterclockwise, it can abut against the guide plate 62 and move towards the latch tongue spring 13, so that the latch tongue assembly can be pulled back into the lock body 32.

[0036] The shift fork 9 is rotatably connected to the handle hole 102, such as... Figure 5 and Figure 6As shown, the step of the shift fork 9 is engaged with the hole in the upper cover plate. The shift fork plate 8 is sleeved on the outer circumference of the shift fork 9. Several teeth are provided on the outer side of the shift fork plate 8. These teeth mesh with the teeth on the oblique tongue plate 12 to achieve mutual linkage. A small triangular protrusion is provided on the inner hole of the shift fork plate 8. A matching step is provided on the outer circumference of the shift fork 9 so that the shift fork plate 8 and the shift fork 9 are engaged. When the handle bar is inserted into the shift fork 9, the handle is rotated to drive the shift fork 9 to rotate, which in turn drives the shift fork plate 8 to rotate, which in turn causes the engaged oblique tongue plate 12 to rotate, thereby realizing the extension and retraction control of the oblique tongue assembly.

[0037] A fork washer 10 is installed at both the upper and lower ends of the fork 9, and a fork spring 11 is installed on the outer circumference of the fork 9. The two force-bearing feet of the fork spring 11 are locked on the lower cover plate 1. At the same time, one end of the fork piece 8 is locked between the two force-bearing feet of the fork spring 11, and the fork 9 is reset through the fork spring 11.

[0038] Furthermore, the square latch assembly includes a square latch 31 and a lock body 32. The lock body 32 has swing blocks 15 on both its upper and lower sides. The swing blocks 15 cooperate with the locking cylinder's shift head, and the lock cylinder is linked to the square latch assembly via the swing blocks 15. The rear of the lock body 32 has a strip-shaped hole 34, and the lower cover plate 1 has mounting pins 35 corresponding to the position of the strip-shaped hole 34. The lock body 32 is slidably connected to the lower cover plate 1 via the strip-shaped hole 34 and the mounting pins 35. The middle part of the swing block 15 is rotatably connected to the mounting pins 35. The middle part of the lock body 32 has an L-shaped groove 33, and one end of the swing block 15 has a swing block nail 16, which is inserted into and slidably connected to the L-shaped groove 33.

[0039] Through the above technical solution, the lock body 32 of the square tongue assembly is provided with a strip-shaped hole 34 at its tail, which is fitted onto the corresponding mounting pin 35 on the lower cover plate 1. A swing block 15 is installed on each of the upper and lower sides of the lock body 32. The middle part of the swing block 15 is rotatably connected to the mounting pin 35. A round hole is provided at the front left side of the swing block 15, and a swing block pin 16 is fitted into the round hole at the front of the swing block 15. The swing block pin 16 passes through the L-shaped groove 33 provided in the middle of the lock body 32. When the lock cylinder's dial rotates, the dial engages with the latch on the swing block 15, causing the dial to drive the swing block 15 to rotate around the mounting pin 35. This, in turn, causes the swing block pin 16 to drive the lock body 32 to slide along the L-shaped groove 33, allowing the lock body 32 and the square tongue 31 to retract or extend.

[0040] A limiting spring 14 is provided on the side of the pendulum block 15 away from the pendulum block nail 16. One end of the limiting spring 14 is connected to the lower cover plate 1, and the other end of the limiting spring 14 is connected to the pendulum block 15. The rotation of the pendulum block 15 is limited by the limiting spring 14.

[0041] Furthermore, the upper and lower ends of the slanted tongue commutator 5 are rotatably connected to the upper cover plate and the lower cover plate 1, respectively. One end of the commutator spring 4 is connected to the slanted tongue commutator 5, and the other end of the commutator spring 4 is connected to the swing block 15. One end of the slanted tongue commutator 5 abuts against the slanted tongue lever 12.

[0042] Through the above technical solution, the fixing feet at both ends of the latch reversing plate 5 are installed in the corresponding holes of the upper cover plate and the lower cover plate 1, and the latch reversing plate 5 is rotatably connected to the upper cover plate and the lower cover plate 1. A reversing plate spring 4 is installed on the left side of the latch reversing plate 5, and the latch reversing plate 5 stays in the working position under the elastic force of the reversing plate spring 4. At the same time, when the swing block 15 rotates with the lock cylinder's lever, the swing block 15 will pull the reversing plate spring 4, thereby driving the latch reversing plate 5 to rotate and abut against the latch deflector 12, thereby causing the latch deflector 12 to rotate and drive the latch assembly to retract.

[0043] The lock cylinder is connected to the square bolt assembly via the pivot block 15, and the handle is connected to the latch bolt assembly via the shift fork 9, shift fork plate 8, and latch bolt plate 12; simultaneously, the square bolt assembly is connected to the latch bolt assembly via the reversing spring 4 and the latch bolt reversing plate 5. The entire lock has a simple structure, ingenious connections, and is easy to install and operate, while also reducing the size of the lock and lowering costs.

[0044] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A novel lock body structure, comprising a cover plate assembly and a square latch assembly, a bevel latch assembly, a lock cylinder, and a handle located within the cover plate assembly, wherein the cover plate assembly is provided with corresponding lock cylinder holes (101) and handle holes (102), and the cover plate assembly includes a lower cover plate (1), an upper cover plate, and a front panel (2), characterized in that: The lock cylinder hole (101) and handle hole (102) are located at both ends of the cover plate assembly, and the square tongue assembly and the oblique tongue assembly are located between the lock cylinder hole (101) and handle hole (102); The square tongue assembly includes a square tongue (31) and a lock body (32). The lock body (32) is provided with swing blocks (15) on both the upper and lower sides. The swing blocks (15) cooperate with the dial of the lock cylinder. The lock cylinder is connected to the square tongue assembly through the swing blocks (15). The oblique tongue assembly includes an oblique tongue (61) and a guide plate (62). A matching oblique tongue paddle (12) is provided below the guide plate (62). A paddle fork (9) and a paddle fork piece (8) are provided at the position of the handle hole (102). The paddle fork piece (8) and the oblique tongue paddle (12) are connected by teeth. The handle is connected to the paddle fork (9) by a square bar. The handle is linked to the oblique tongue assembly through the paddle fork (9), the paddle fork piece (8) and the oblique tongue paddle (12). A commutator spring (4) and a commutator plate (5) are provided between the sway block (15) and the slanted tongue swashplate (12). The square tongue assembly is connected to the slanted tongue assembly through the commutator spring (4) and the slanted tongue swashplate (5).

2. The novel lock body structure according to claim 1, characterized in that: The guide plate (62) has a cross-shaped structure. The upper cover plate and the lower cover plate (1) are provided with slots corresponding to the position of the guide plate (62). The guide plate (62) is slidably connected to the upper cover plate and the lower cover plate (1) through the slots. The tail of the guide plate (62) is provided with a slanted tongue spring (13).

3. The novel lock body structure according to claim 1, characterized in that: One end of the oblique tongue paddle (12) is rotatably connected to the lower cover plate (1) via the oblique tongue paddle pin (7), and a slot is provided below the guide plate (62) for the oblique tongue paddle (12) to pass through.

4. The novel lock body structure according to claim 1, characterized in that: The fork (9) is rotatably connected to the handle hole (102), the fork piece (8) is sleeved on the fork (9) and engaged with the fork (9), and fork pads (10) are provided at the upper and lower ends of the fork (9).

5. The novel lock body structure according to claim 1, characterized in that: A fork spring (11) is provided on the outer circumference of the fork (9). The fork spring (11) is connected to the fork plate (8). The fork plate (8) is reset by the fork spring (11).

6. The novel lock body structure according to claim 1, characterized in that: The lock body (32) has a strip hole (34) at its tail. The lower cover plate (1) has a mounting pin (35) at the position corresponding to the strip hole (34). The lock body (32) is slidably connected to the lower cover plate (1) through the strip hole (34) and the mounting pin (35).

7. The novel lock body structure according to claim 6, characterized in that: The middle part of the swing block (15) is rotatably connected to the mounting pin (35), the middle part of the lock body (32) is provided with an L-shaped groove (33), one end of the swing block (15) is provided with a swing block nail (16), the swing block nail (16) is inserted into the L-shaped groove (33) and slidably connected with the L-shaped groove (33).

8. The novel lock body structure according to claim 7, characterized in that: The swing block (15) is provided with a limiting spring (14) on the side away from the swing block nail (16). One end of the limiting spring (14) is connected to the lower cover plate (1), and the other end of the limiting spring (14) is connected to the swing block (15).

9. The novel lock body structure according to claim 1, characterized in that: The upper and lower ends of the slanted tongue commutator (5) are rotatably connected to the upper cover plate and the lower cover plate (1) respectively. One end of the commutator spring (4) is connected to the slanted tongue commutator (5), and the other end of the commutator spring (4) is connected to the swing block (15). One end of the slanted tongue commutator (5) abuts against the slanted tongue lever (12).

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