Mechanical lock

Abstract

The utility model discloses a mechanical lock which comprises a lock body and a handle located outside the lock body, an installation column is arranged in the lock body, the mechanical lock further comprises an inner supporting plate and a transmission assembly, the inner supporting plate is fixed with the lock body in a threaded connection mode and provided with an assembly hole for the installation column to penetrate out, and the transmission assembly is arranged in the assembly hole. The transmission assembly comprises a protection shell, a positioning rod and a heaven and earth hook, the positioning rod and the heaven and earth hook are arranged on the protection shell, the positioning rod is in transmission connection with the heaven and earth hook, the protection shell is fixed to the installation column in a threaded mode, and the positioning rod sequentially penetrates through the inner supporting plate and the lock body to be connected with the handle. And meanwhile, the installation is inconvenient, the applicability is relatively low, the installation by personnel can be facilitated, and meanwhile, the applicability is improved to a certain degree.

Description

Technical Field

[0001] This utility model relates to the field of lock components technology, and in particular to a mechanical lock. Background Technology

[0002] A mechanical lock is a type of lock that uses mechanical principles to open and close. It typically consists of a lock body, handle, lock cylinder, key, and bolt. There are many types of mechanical locks, which can be divided into various categories based on the shape, structure, and opening method of the lock cylinder, such as pin tumbler locks, leaf locks, magnetic locks, and combination locks.

[0003] Traditional mechanical locks have a handle mounted on the lock body. The lock body is linked to a transmission component via the handle, and the transmission component is connected to a bolt. Rotating the handle controls the transmission component to move the bolt. When installing a mechanical lock on a door, a through hole is made in the door. The transmission component is usually located inside the through hole. The lock body is supported on the outside of the door by the handle connected to the transmission component. When a person uses it, they control the handle to move the transmission component, causing the bolt to extend or retract, thus locking the door. However, when installing the lock body and transmission component on a door, the lock body needs to be constantly supported to prevent it from slipping off the door, making installation inconvenient and unsuitable for doors of different thicknesses, thus limiting its applicability. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a mechanical lock.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a mechanical lock, including a lock body and a handle located outside thereon, wherein a mounting post is provided in the lock body, and an inner support plate and a transmission assembly are also provided. The inner support plate is screwed and fixed to the lock body, and is provided with an assembly hole for the mounting post to pass through. The transmission assembly includes a protective shell and a positioning rod and a deadbolt provided thereon. The positioning rod is drivenly connected to the deadbolt. The protective shell is threaded and fixed to the mounting post. The positioning rod passes through the inner support plate and the lock body in sequence and connects to the handle.

[0006] Preferably, the inner support plate is U-shaped and made of metal.

[0007] Preferably, the protective shell is provided with a mounting bolt one that is screwed to the mounting post, the lock body is also provided with a positioning post, and the inner support plate is screwed to the positioning post by a mounting bolt two.

[0008] Preferably, the lower end of the lock body is provided with a receiving shell, the lower end of the handle is provided with a placement shell, the placement shell is provided with a lock cylinder, the bottom end of the lock cylinder is provided with a locking block, and the receiving shell is divided into an active area and a limiting area for the placement locking block.

[0009] Preferably, a baffle is provided on the outer wall of the handle at the opening of the lock cylinder.

[0010] Preferably, a positioning plate is provided on the outer wall of the lock body, a through hole one is provided on the handle for the positioning plate to pass through, and a through hole two is provided on the positioning plate.

[0011] Preferably, the lock body has a through limiting hole, the baffle is provided with a threaded cylinder, the front end of the threaded cylinder is located in the limiting hole, and the front end of the threaded cylinder is screwed with a limiting bolt, and a telescopic spring is sleeved on the outside of the threaded cylinder.

[0012] The beneficial effects of this utility model are as follows: By setting an inner support plate between the lock body and the transmission assembly, and setting a positioning post inside the lock body, the lock body and the inner support plate can be clamped onto the door panel during installation, in conjunction with the mounting bolts on the inner support plate. Compared with the prior art, there is no need to support the lock body on the door panel through the transmission assembly, avoiding the need for personnel to support the lock body during installation and reducing the workload of personnel. At the same time, the lock body and the inner support plate are connected separately, which can be installed on door panels of different thicknesses, improving the applicability of installation. A positioning plate is set on the outer wall of the lock body, and a through hole one is set on the handle for the positioning plate to pass through. A through hole two is opened on the positioning plate, so that when the personnel lock the positioning plate with a lock, the position of the handle on the lock body can be restricted when the handle is not in use, preventing other personnel from using it and improving a certain degree of security. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram illustrating the external mechanism of the lock body in one embodiment of the present invention;

[0014] Figure 2 This is an exploded view of the external mechanism of the lock body in one embodiment of the present invention;

[0015] Figure 3 This is a schematic diagram illustrating the upper part of the lock body structure in one embodiment of the present invention.

[0016] Figure 4 for Figure 3 A cross-sectional view of the structure along its AA direction;

[0017] Figure 5 This is a schematic diagram illustrating the structure of a transmission component in one embodiment of the present invention.

[0018] Figure 6 This is an exploded view of the upper part of the lock body mechanism in one embodiment of the present invention.

[0019] Reference numerals: 1. Lock body; 2. Handle; 3. Mounting post; 4. Inner support plate; 5. Assembly hole; 6. Protective shell; 7. Top and bottom hooks; 8. Positioning rod; 9. Mounting bolt one; 10. Positioning post; 11. Mounting bolt two; 12. Receiving shell; 13. Placement shell; 14. Lock cylinder; 15. Limiting zone; 16. Locking block; 17. Moving zone; 18. Baffle; 19. Positioning plate; 20. Through hole one; 21. Through hole two; 22. Limiting hole; 23. Threaded cylinder; 24. Limiting bolt; 25. Telescopic spring; 26. Gear. Detailed Implementation

[0020] The following description is only a preferred embodiment of the present utility model. The scope of protection is not limited to this embodiment. All technical solutions that fall within the scope of the present utility model should be protected by the present utility model. It should also be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present utility model should also be considered within the scope of protection of the present utility model.

[0021] It should be noted that in this document, relational terms such as first and second, or "connecting plate one, connecting plate two," are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0022] The directional terms mentioned in this embodiment, such as "up," "down," "left," and "right," are merely used to help those skilled in the art understand the relationships between various features or parts in conjunction with the accompanying drawings.

[0023] In this embodiment, unless otherwise explicitly specified and limited, the terms "connection" and "fixed" should be interpreted broadly. For example, "fixed" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] like Figures 1 to 6As shown, a mechanical lock includes a lock body 1 and a handle 2 disposed on its exterior. A mounting post 3 is disposed at the upper end of the interior of the lock body 1. An inner support plate 4 is also disposed inside the lock body 1. In this embodiment, the inner support plate 4 is U-shaped and made of metal. An anti-static interface (not shown in the attached figure) is provided on the inner support plate 4 for connection to a grounding wire. In this embodiment, the anti-static interface can be positioned appropriately on the inner support plate 4 to prevent static electricity generation during use and improve user comfort. The length and width dimensions of the inner support plate 4 are smaller than the maximum length and width dimensions of the lock body 1. A transmission assembly is disposed at the end of the inner support plate 4 away from the lock body 1. The transmission assembly includes a protective shell 6 and a positioning rod 8 disposed thereon. Regarding hook 7, it should be noted that the transmission assembly uses technical components commonly used by those skilled in the art. The positioning rod 8 is horizontally located in the middle of the protective shell 6, with both its front and rear ends extending out of the protective shell 6. The front end of the positioning rod 8 passes sequentially through the inner support plate 4 and the lock body 1, and is rotatably connected to the upper end of the handle 2. Specifically, the front end of the positioning rod 8 is provided with a rotating shaft (not shown in the attached diagram) rotatably connected to the upper end of the handle 2. When driven, the handle 2 can rotate along the central axis of the rotating shaft and also rotate around the central axis of the positioning rod 8. A gear 26 is installed inside the protective shell 6, and the gear 26 is fitted onto the end of the positioning rod 8 located inside the protective shell 6. The two hooks in the top and bottom hooks 7 are located on the left and right sides of the gear 26, arranged vertically opposite each other.

[0025] The lock body 1 is also provided with a positioning post 10. In this embodiment, both the mounting post 3 and the positioning post 10 adopt an internal hollow design and their inner walls are provided with internal threads (not shown in the attached figure). The inner support plate 4 is provided with an assembly hole 5 for the mounting post 3 to pass through. The protective shell 6 is provided with a mounting bolt 9 and a mounting post 3 screwed together. The inner support plate 4 is screwed together with the positioning post 10 by a mounting bolt 11.

[0026] A positioning plate 19 is provided on the front side of the outer wall of the lock body 1. A through hole 20 is provided on the handle 2 for the positioning plate 19 to pass through, and a through hole 21 is provided at the front end of the positioning plate 19. The purpose is that when the front end of the positioning plate 19 passes through the through hole 20, a lock can be applied at the through hole 21 to restrict the handle 2. A receiving shell 12 is provided at the lower end of the lock body 1, and a placement shell 13 is provided at the lower end of the handle 2. The overall size of the placement shell 13 is smaller than the overall size of the receiving shell 12, so that when the handle 2 is not in use, the placement shell 13 can extend into the receiving shell 12. A lock cylinder 14 is provided inside the placement shell 13, and a locking block 16 is provided at the bottom end of the lock cylinder 14. The locking block 16 is located outside the housing 13. It should be noted that the locking block 16 can be rotated by inserting the correct key into the lock cylinder 14 and turning the key. It adopts the technical components commonly used by those skilled in the art. Inside the housing 12, there is an active area 17 and a limiting area 15 for the locking block 16 to enter and be placed. A protrusion (not shown in the figure) is provided at one end of the junction of the limiting area 15 and the active area 17. The purpose of this is that when the locking block 16 is rotated in the limiting area 15 to be opposite to the protrusion, it will be blocked and cannot be moved out of the limiting area 15. The purpose of this is to limit the handle 2 and reduce the pulling and driving of the handle 2 by unauthorized personnel.

[0027] A baffle 18 is provided on the outer wall of the handle 2 at the opening of the lock cylinder 14, and a limiting hole 22 is provided on the lock body 1. A threaded cylinder 23 is provided on the upper end of the baffle 18, opposite to the limiting hole 22. The front end of the threaded cylinder 23 is located inside the limiting hole 22, and a limiting bolt 24 is provided on the side of the handle 2 away from the baffle 18 and screwed to the front end of the threaded cylinder 23. A telescopic spring 25 is sleeved on the outside of the threaded cylinder 23. In this embodiment, the inner diameter of the limiting hole 22 gradually decreases towards the baffle 18. An extension piece (not shown in the figure) is provided on the limiting bolt 24. The outer diameter of the extension piece is the same as the inner diameter of the middle part of the limiting hole 22. The purpose is that when the person pulls the baffle 18, the limiting bolt 24 is simultaneously driven to move in the limiting hole 22, and the telescopic spring 25 is extended. When the person releases the baffle, the telescopic spring 25 returns to its original position and pushes the baffle 18 back to the outer wall of the lock body 1.

[0028] During installation, the lock body 1 is installed on the outside of the door, and the inner support plate 4 is placed inside the door opening. With the lock body 1 on the outside and the inner support plate 4 on the inside, the lock body 1 and the inner support plate 4 are screwed together with the second mounting bolt 11 and the positioning post 10, so that the lock body 1 and the inner support plate 4 are clamped on the door. Then, the transmission assembly is inserted, so that the positioning rod 8 passes through the inner support plate 4 and the lock body 1 and is movably connected to the handle 2 on the front side of the lock body 1. Finally, the lock body 1, the transmission assembly and the handle 2 are screwed together with the first mounting bolt 9, thus completing the connection and installation of the lock body 1, the transmission assembly and the handle 2 on the door.

[0029] It should be noted that since the lock body 1 and the inner support plate 4 are connected separately, it can be used on doors of different thicknesses. The lengths of mounting bolt 19 and mounting bolt 21 can be adjusted according to the thickness of the door. At the same time, the positioning rod 8 needs to be able to extend out of the range where the lock body 1 is connected to the handle 2.

[0030] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A mechanical lock, comprising a lock body (1) and a handle (2) located outside thereon, wherein a mounting post (3) is provided inside the lock body (1). Its features are, It also includes an inner support plate (4) and a transmission assembly. The inner support plate (4) is screwed to the lock body (1) and is provided with an assembly hole (5) through which the mounting post (3) passes. The transmission assembly includes a protective shell (6) and a positioning rod (8) and a top and bottom hook (7) disposed thereon, wherein the positioning rod (8) is connected to the top and bottom hook (7) in a transmission manner; The protective shell (6) is threadedly fixed to the mounting post (3), and the positioning rod (8) passes through the inner support plate (4) and the lock body (1) in sequence to connect to the handle (2).

2. A mechanical lock according to claim 1, characterized in that, The inner support plate (4) is U-shaped and made of metal.

3. A mechanical lock according to claim 1, characterized in that, The protective shell (6) is provided with a mounting bolt (9) which is screwed and fixed to the mounting post (3). The lock body (1) is also provided with a positioning post (10). The inner support plate (4) is screwed and fixed to the positioning post (10) by a mounting bolt (11).

4. A mechanical lock according to claim 1, characterized in that, The lower end of the lock body (1) is provided with a receiving shell (12), the lower end of the handle (2) is provided with a placement shell (13), the placement shell (13) is provided with a lock cylinder (14), the bottom end of the lock cylinder (14) is provided with a locking block (16), and the receiving shell (12) is provided with an active area (17) and a limiting area (15) for the placement locking block (16).

5. A mechanical lock according to claim 4, characterized in that, A baffle (18) is provided on the outer wall of the handle (2) at the opening of the lock cylinder (14).

6. A mechanical lock according to claim 1, characterized in that, The lock body (1) has a positioning plate (19) on its outer wall, and the handle (2) has a through hole (20) for the positioning plate (19) to pass through, and the positioning plate (19) has a through hole (21).

7. A mechanical lock according to claim 5, characterized in that, The lock body (1) has a through limiting hole (22), the baffle (18) is provided with a threaded cylinder (23), the front end of the threaded cylinder (23) is located in the limiting hole (22), and the front end of the threaded cylinder (23) is screwed with a limiting bolt (24), and a telescopic spring (25) is sleeved on the outside of the threaded cylinder (23).

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