Lock body with main lock tongue and inclined tongue in synchronous linkage

Abstract

The utility model discloses a lock body synchronously linked with a main lock tongue and an inclined tongue, which comprises a lock shell, a lock body panel, a main lock tongue component, a touch tongue component and an inclined tongue component, and a square rod linkage device and a detection component are arranged below the main lock tongue component; the main spring bolt assembly comprises a main bolt and a main bolt piece, the main bolt piece is connected with a first rotating piece through a rotating shaft, and the tail end of the first rotating piece is provided with a downward extending block which is located in a notch of the main bolt and can drive the main bolt to move up and down in the rotating process; the detection assembly comprises a first detection switch capable of being connected with the main tongue piece and a third detection switch capable of being connected with the inclined tongue support, and the detection assembly can judge various states of the lock body. The states of the main tongue and the inclined tongue of the lock body are monitored in real time through the detection assembly, and the situations of false closing, violent unlocking and the like of the door lock are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of lock bodies, in particular to a lock body with a synchronously linked main lock tongue and an oblique lock tongue. Background Art

[0002] Door locks, as the name suggests, are devices used to lock a door to prevent others from opening it. Door locks are widely used and come in many varieties, with different requirements for door locks in different situations. The internal structure of existing door lock bodies is relatively complex, and their production costs are high. Since the components of the lock are easily worn and damaged after long-term use, the complex structure of the lock is difficult to repair after damage, which reduces the service life of the lock. In the locking process of existing locking mechanisms, the thumbwheel directly applies force to the main lock tongue assembly, and the main lock tongue assembly transmits force to the brake member during movement, which is a point-to-point transmission. Therefore, the thumbwheel needs to instantly overcome a sufficiently large braking force during the force application process, resulting in large resistance to opening and closing the lock, making opening and closing the lock laborious, and the thumbwheel is easily damaged, affecting the user experience and service life of the lock body. To this end, a lock body with a synchronous linkage between the main lock tongue and the oblique tongue is proposed. Utility Model Content

[0003] The purpose of the utility model is to provide a lock body with a main lock tongue and a tilted bolt that are synchronously linked. A square rod linkage device is provided inside the lock body, and the main lock tongue assembly and the tilted bolt assembly are linked by the square rod linkage device. The structure is simple, the square rod linkage device only requires two parts, and the main lock tongue assembly only requires one first rotating piece part, which has few parts and low cost, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A lock body with a synchronously linked main lock tongue and a tilted lock tongue, comprising a lock housing, a lock body panel disposed on one side of the lock housing and fixedly connected to the lock housing, a main lock tongue assembly, a latch tongue assembly, and a tilted lock tongue assembly disposed within the lock body, wherein the main lock tongue assembly, the latch tongue assembly, and the tilted lock tongue assembly all pass through the lock body panel, and a square rod linkage device is provided below the main lock tongue assembly;

[0006] The main lock bolt assembly includes a main bolt and a main bolt piece. The main bolt piece is connected to a first rotating piece via a rotating shaft. The tail end of the first rotating piece is equipped with a lower extension block that is located within the main bolt notch and can drive the main bolt up and down during rotation. The main bolt piece and the first rotating piece are restrained by a second guide member, which is restrained and moves up and down within a second guide groove. The first rotating piece is also connected to a main bolt torsion spring for reset, which is mounted on the first protrusion.

[0007] The latch assembly includes a latch, a latch rod connected to the latch, a latch positioning piece mounted on the latch rod, and a latch bracket; a latch piece assembly is provided next to the latch assembly, the latch piece assembly includes a first latch piece at an upper end and a second latch piece at a lower end, the second latch piece is mounted above the latch positioning piece and rotates with the second latch piece to drive the latch to move up and down;

[0008] The square rod linkage device includes a first linkage piece and a second linkage piece that are coaxially connected and arranged in sequence from top to bottom. The first linkage piece is meshed with the first rotating piece; the second linkage piece is meshed with the first oblique tongue piece through a transverse rack.

[0009] The first linkage piece is provided with a second tooth, and the first rotating piece is provided with a first tooth that matches the second tooth.

[0010] The transverse rack is provided with a third tooth, and the first oblique tongue is provided with a fourth tooth that cooperates with the third tooth.

[0011] A positioning column is provided in the lock housing, and a tilted tongue torsion spring is installed on the positioning column. One end of the tilted tongue torsion spring is connected to the tilted tongue rod.

[0012] A lock core rod is mounted between the first and second linkage pieces. One side of the lock core rod is provided with a lock core engagement flap that engages the lock core. The engagement flap engages the lock core, and rotation of the lock core activates engagement. The lock core rod is provided with a fourth guide member and a fourth guide groove that facilitates the limited left and right movement of the fourth guide member. The other end of the main tongue torsion spring is mounted on the fourth guide member. The lock core rod is provided with a third guide member and a third guide groove that facilitates the limited left and right movement of the third guide member. The third guide member connects the first and second linkage pieces.

[0013] One side of the transverse rack is also provided with a lock core matching flap that matches the lock core. The transverse rack is provided with a first guide member and a first guide groove that facilitates the first guide member to limit the left and right movement.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The structure of the utility model is that when the square rod linkage device rotates counterclockwise, it drives the first linkage piece and the second linkage piece to rotate, the second tooth rotates counterclockwise, the first tooth rotates clockwise, and the lower extension block drives the main tongue piece to move upward to achieve locking.

[0016] When the square rod linkage device rotates clockwise, it drives the first linkage piece and the second linkage piece to rotate, the second tooth rotates clockwise, the first tooth rotates counterclockwise, the lower extension block drives the main tongue piece to move downward, the second linkage piece rotates clockwise, drives the transverse rack to move right, drives the first oblique tongue piece to rotate counterclockwise, drives the second oblique tongue piece to move downward, and synchronously links the oblique tongue to move downward. The square rod linkage device synchronously drives the main lock tongue assembly and the oblique tongue assembly through the transverse rack, and cooperates with the lock core to perform linkage by setting the transverse rack and the lock core rod. The whole structure is simple without redundant parts, easy to use and easy to process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a lock body with a synchronously linked main lock tongue and a tilted lock tongue (1) according to the present invention;

[0018] Figure 2 This is a structural diagram of a lock body with a synchronously linked main lock tongue and a tilted lock tongue (2) of the present invention;

[0019] Figure 3 This is a structural schematic diagram (3) of a lock body with a synchronously linked main lock tongue and an oblique lock tongue according to the present invention.

[0020] In the figure: 1. main tongue; 2. lock body panel; 3. first tooth; 4. main tongue piece; 5. second tooth; 6. first rotating piece; 7. first linkage piece; 8. first detection switch; 9. lower extension block; 10. second detection switch; 11. detection assembly; 12. third detection switch; 13. third tooth; 14. inclined tongue bracket; 15. inclined tongue torsion spring; 16. inclined tongue positioning piece; 17. inclined tongue rod; 18. second inclined tongue piece; 19. inclined tongue; 20. first inclined tongue piece; 21. fourth tooth; 22. contact tongue; 23. transverse rack; 24. first guide member; 25. second guide member; 26. second guide groove; 27. main tongue torsion spring; 28. first protrusion; 29. third guide member; 30. lock core rod; 31. fourth guide member; 32. fourth guide groove; 33. lock core matching flap; 34. second linkage piece. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Reference Figure 1 、 Figure 2 and Figure 3A lock body with a synchronously linked main lock bolt and a tilted bolt, comprising a lock housing, a lock body panel 2 disposed on one side of the lock housing and fixedly connected to the lock housing, a main lock bolt assembly, a latch bolt assembly, and a tilted bolt assembly 19 disposed in the lock body, wherein the main lock bolt assembly, the latch bolt assembly, and the tilted bolt assembly all pass through the lock body panel 2, and a square rod linkage device and a detection assembly 11 for detecting the specific status of the main lock bolt assembly, the latch bolt assembly, and the tilted bolt assembly are provided below the main lock bolt assembly;

[0023] The main lock bolt assembly includes a main bolt 1 and a main bolt piece 4. The main bolt piece 4 is connected to a first rotating piece 6 via a rotating shaft. The tail end of the first rotating piece 6 is provided with a lower extension block 9 that resides within the notch of the main bolt 1 and drives the main bolt 1 up and down during rotation. The main bolt piece 4 and the first rotating piece 6 are restrained by a second guide member 25, which is restrained for up and down movement within a second guide slot 26. The first rotating piece 6 is also connected to a main bolt torsion spring 27 for resetting, which is mounted on a first protrusion 28. The first linkage piece 7 is provided with a second tooth 5, and the first rotating piece 6 is provided with a first tooth 3 that cooperates with the second tooth 5.

[0024] The inclined bolt 19 assembly includes an inclined bolt 19, an inclined bolt rod 17 connected to the inclined bolt 19, an inclined bolt positioning piece 16 installed on the inclined bolt rod 17, and an inclined bolt bracket 14; a inclined bolt 19 piece assembly is provided next to the inclined bolt 19 assembly, and the inclined bolt 19 piece assembly includes a first inclined bolt piece 20 at the upper end and a second inclined bolt piece 18 at the lower end, the second inclined bolt piece 18 is installed above the inclined bolt positioning piece 16 and rotates with the second inclined bolt piece 18 to drive the inclined bolt 19 to move up and down; a positioning column is provided in the lock housing, and an inclined bolt torsion spring 15 is installed on the positioning column, and one end of the inclined bolt torsion spring 15 is connected to the inclined bolt rod 17.

[0025] The square rod linkage device includes a first linkage piece 7 and a second linkage piece 34 that are coaxially connected and arranged in sequence from top to bottom. The first linkage piece 7 is meshed with the first rotating piece 6; the second linkage piece 34 is meshed with the first oblique tongue piece 20 through a transverse rack 23; the transverse rack 23 is provided with a third tooth 13, and the first oblique tongue piece 20 is provided with a fourth tooth 21 that cooperates with the third tooth 13.

[0026] The detection assembly 11 includes a first detection switch 8 that can be connected to the main tongue piece 4 and a third detection switch 12 that can be connected to the oblique tongue bracket 14. The detection assembly 11 can determine various states of the lock body (based on whether the main tongue piece 4 is in contact with the first detection switch 8, whether the oblique tongue bracket 14 is in contact with the third detection switch 12, and whether the tongue contact rod 22 is in contact with the second detection switch 10).

[0027] The tongue 22 assembly includes a tongue 22 and a tongue 22 rod, and the tongue 22 rod is connected to the second detection switch 10.

[0028] A lock core rod 30 is installed between the first linkage piece 7 and the second linkage piece 34. One side of the lock core rod 30 is provided with a lock core matching flap 33 that cooperates with the lock core. The lock core matching flap 33 cooperates with the lock core, and the lock core can be linked by rotating it. The lock core rod 30 is provided with a fourth guide member 31 and a fourth guide groove 32 that facilitates the left and right movement of the fourth guide member 31. The other end of the main tongue torsion spring 27 is installed on the fourth guide member 31. The lock core rod 30 is provided with a third guide member 29 and a third guide groove that facilitates the left and right movement of the third guide member 29. The third guide member 29 connects the first linkage piece 7 and the second linkage piece 34. One side of the transverse rack 23 is also provided with a lock core matching flap 33 that cooperates with the lock core. The transverse rack 23 is provided with a first guide member 24 and a first guide groove that facilitates the left and right movement of the first guide 24.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lock body with a synchronously linked main lock bolt and a tilted bolt, comprising a lock housing, a lock body panel disposed on one side of the lock housing and fixedly connected to the lock housing, a main lock bolt assembly and a tilted bolt assembly disposed within the lock body, wherein both the main lock bolt assembly and the tilted bolt assembly pass through the lock body panel, characterized in that: A square rod linkage device is provided below the main lock tongue assembly; The main lock tongue assembly includes a main tongue and a main tongue piece, wherein the main tongue piece is connected to a first rotating piece via a rotating shaft, and a lower extension block is provided at the rear end of the first rotating piece, which is located in the notch of the main tongue and can drive the main tongue to move up and down during rotation; The latch assembly includes a latch, a latch rod connected to the latch, a latch positioning piece mounted on the latch rod, and a latch bracket; a latch piece assembly is provided next to the latch assembly, the latch piece assembly includes a first latch piece at an upper end and a second latch piece at a lower end, the second latch piece is mounted above the latch positioning piece and rotates with the second latch piece to drive the latch to move up and down; The square rod linkage device includes a first linkage piece and a second linkage piece that are coaxially connected and arranged in sequence from top to bottom. The first linkage piece is meshed with the first rotating piece; the second linkage piece is meshed with the first oblique tongue piece through a transverse rack.

2. The lock body with a synchronously linked main lock tongue and a tilted lock tongue according to claim 1, characterized in that: The first linkage piece is provided with a second tooth, and the first rotating piece is provided with a first tooth that matches the second tooth.

3. A lock body with a synchronously linked main lock tongue and a tilted lock tongue according to claim 1 or 2, characterized in that: The transverse rack is provided with a third tooth, and the first oblique tongue is provided with a fourth tooth that cooperates with the third tooth.

4. The lock body with a synchronously linked main lock tongue and a tilted lock tongue according to claim 1, characterized in that: A positioning column is provided in the lock housing, and a tilted tongue torsion spring is installed on the positioning column. One end of the tilted tongue torsion spring is connected to the tilted tongue rod.

5. The lock body with a synchronously linked main lock tongue and a tilted lock tongue according to claim 1, characterized in that: A lock core rod is installed between the first linkage piece and the second linkage piece. One side of the lock core rod is provided with a lock core matching flap that matches the lock core.

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