Safety lock device and safety door
By designing a safety lock device on the chassis door that uses a cylinder telescopic rod to block the rear end of the lock tongue, the problem that the existing chassis door can still be opened at will when closed is solved, which significantly improves safety.
Patent Information
- Application Number
- CN202421245909.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-06-03
AI Technical Summary
The existing chassis door can still be opened by staff at will when closed, resulting in damage to the automation equipment or endangering personal safety, and poor safety.
A safety lock device is designed, including a lock shell with an open top surface, a rotatable handle, a lock tongue assembly and a cylinder. The telescopic rod of the cylinder blocks the rear end of the lock tongue when the chassis door is closed to prevent the lock opening from being operated by mistake.
Effectively prevent staff from operating incorrectly opening the chassis door, improving the safety of automation equipment in the chassis and the personal safety of staff.
Smart Images
Figure CN222501338U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of work safety, and more particularly to a safety lock device and a safety door. Background Art
[0002] With the rapid development of modernization, automation equipment has been widely used because of its advantages of being able to automatically operate or control according to prescribed procedures or instructions without human intervention. At present, most automation equipment is installed in a cabinet-type chassis. Closing the chassis door can make the entire automation process proceed in a closed state, and opening the chassis door allows the internal structure of the chassis to be seen.
[0003] When the automation equipment is working, in order to ensure the safety of the equipment and the personal safety of the staff, the chassis door is usually forbidden to be opened. However, when the existing chassis door is in a closed state, the staff can actually open the chassis door at any time, which is very likely to cause damage to the automation equipment or endanger the personal safety of the staff, and has poor safety. Utility Model Content
[0004] In order to overcome the above-mentioned shortcomings of the prior art, the utility model provides a safety lock device and a safety door, which can use the telescopic rod of the cylinder to block the rear end of the lock tongue, thereby preventing the staff from opening the chassis door by mistake and improving safety.
[0005] The technical solution adopted by the utility model to solve its technical problems is:
[0006] A safety lock device comprises a lock shell with an open top surface, a handle rotatably arranged at the upper end of the lock shell inner cavity, a lock tongue assembly arranged at the lower end of the lock shell inner cavity, and a cylinder arranged at the bottom of the lock shell;
[0007] The front side of the lock housing is provided with an opening, and the bottom surface of the lock housing is provided with a through hole;
[0008] A push plate extending vertically downward is provided on the front side of the handle;
[0009] The lock tongue assembly comprises a guide rail and a lock tongue slidably arranged in the guide rail, the front end of the lock tongue protrudes out of the lock housing through the opening; a shift opening is provided on the lock tongue, a shift plate protruding downward is provided at the rear edge of the shift opening, a push plate passes through the shift opening and a side surface of the push plate contacts a side surface of the shift plate;
[0010] The cylinder is connected to the inner cavity of the lock shell through the through hole and fixed on the bottom surface of the guide rail. The telescopic rod of the cylinder is configured to block the rear end of the lock tongue in a fully extended state to prevent the lock tongue from moving inward.
[0011] In a preferred technical solution, it also includes a cylinder mounting seat, and the cylinder mounting seat is a U-shaped structure;
[0012] The U-shaped end surfaces of the cylinder mounting seat are fitted on the two side edges of the open top surface of the lock shell, one end of the cylinder is fixedly mounted on the U-shaped bottom surface of the cylinder mounting seat, and the other end of the cylinder is fixedly mounted on the bottom surface of the guide rail.
[0013] In a preferred technical solution, a mounting through hole for mounting the cylinder is provided on the bottom surface of the guide rail, an upwardly erected limit plate is provided between the mounting through hole and the front end of the guide rail, and the upper edge of the limit plate is higher than the lower edge of the shift plate.
[0014] In a preferred technical solution, a U-shaped limit opening is provided at the rear end of the lock tongue; the telescopic rod of the cylinder is configured to be able to block the bottom edge of the U-shaped limit opening in a fully extended state to prevent the lock tongue from moving inward.
[0015] In a preferred technical solution, the front end of the lock tongue is a bent piece structure that hooks inward downward.
[0016] In a preferred technical solution, the front end of the handle is rotatably connected to the upper end of the inner cavity of the lock housing via a rotating shaft.
[0017] In a preferred technical solution, the cylinder is electrically connected to the controller.
[0018] A safety door comprises a safety lock device as described in any of the above technical solutions.
[0019] The above-mentioned safety door adopts a safety lock device as a door lock, and can use the telescopic rod of the cylinder to block the rear end of the lock tongue, thereby preventing the staff from opening the chassis door by mistake, effectively improving safety.
[0020] It can be seen from the above technical solution that compared with the prior art, the beneficial effect of the utility model is: the utility model adopts a safety lock device equipped with a cylinder, which has a simple structure and is easy to assemble. When the chassis door is closed, the telescopic rod of the cylinder can be used to block the rear end of the lock tongue, thereby preventing the staff from accidentally opening the chassis door, which not only protects the safety of the automation equipment in the chassis, but also ensures the personal safety of the staff, thereby improving safety.
[0021] In addition, other advantages of the present invention will be given in the following description, and some will become apparent from the following description or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a structural schematic diagram of the utility model;
[0023] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;
[0024] Figure 3 It is a schematic diagram of the disassembled structure of the lock tongue assembly;
[0025] Figure 4 A schematic diagram of the structure of the handle. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0027] In the description of the present invention, it should be understood that the terms "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.
[0028] In one embodiment, Figure 1-4 As shown, a safety lock device comprises a lock case 1 with an open top surface, a handle 2 rotatably arranged at the upper end of the inner cavity of the lock case 1, a lock tongue assembly 3 arranged at the lower end of the inner cavity of the lock case 1, and a cylinder 4 arranged at the bottom of the lock case 1; wherein, the lock case 1 has an open top surface for accommodating the handle 2, the front side of the lock case 1 is provided with an opening for the lock tongue assembly 3 to extend out, and the bottom surface of the lock case 1 is provided with a through hole for the cylinder 4 to access the inner cavity of the lock case 1. The lock case 1 is not only helpful for dust prevention, but also integrates the main components of the door lock together, which is convenient for installation and transportation.
[0029] A push plate 21 extending vertically downward is provided on the front side of the handle 2; the lock tongue assembly 3 includes a guide rail 31 and a lock tongue 32 slidably arranged in the guide rail 31, and the front end of the lock tongue 32 extends out of the lock shell 1 through the opening; a shift opening 321 is provided on the lock tongue 32, and a downwardly protruding shift plate 322 is provided on the rear edge of the shift opening 321, and the push plate 21 passes through the shift opening 321 and the side of the push plate 21 contacts the side of the shift plate 322; the cylinder 4 is connected to the inner cavity of the lock shell 1 through the through hole and is fixed on the bottom surface of the guide rail 31, and the telescopic rod of the cylinder 4 is configured to be able to block the rear end of the lock tongue 32 in a fully extended state to prevent the lock tongue 32 from moving inward.
[0030] When implemented specifically, the safety lock device has a first state and a second state. In the first state, the front end of the lock tongue 32 extends out of the lock shell 1, and the telescopic rod of the cylinder 4 is stuck at the rear end of the lock tongue 32. At this time, even if someone turns the handle 2 to make the push plate 21 push the shift plate 322 backward, the lock tongue 32 cannot move into the lock shell 1 due to the obstruction of the telescopic rod, and the lock cannot be unlocked; in the second state, the telescopic rod retracts into the cylinder 4 and no longer blocks the rear end of the lock tongue 32. At this time, when the handle 2 is turned, the push plate 21 will push the shift plate 322 backward, thereby driving the lock tongue 32 to move inward as a whole, so that the lock tongue 32 is retracted and unlocking is achieved.
[0031] It can be seen that the safety lock device provided by the present invention needs to meet two conditions for successful unlocking: turning the handle 2 and unlocking the cylinder 4. If the cylinder 4 is not unlocked, the lock cannot be unlocked by the handle 2 alone.
[0032] In this embodiment, the safety lock device further includes a cylinder mounting seat 5, which is a U-shaped structure; the U-shaped end surfaces of the cylinder mounting seat 5 are fitted on the two side edges of the open top surface of the lock housing 1, one end of the cylinder 4 is fixedly mounted on the U-shaped bottom surface of the cylinder mounting seat 5, and the other end of the cylinder 4 is fixedly mounted on the bottom surface of the guide rail 31. In the above embodiment, the cylinder mounting seat 5 can stabilize the cylinder 4, further ensuring the stability of the safety lock.
[0033] In this embodiment, the bottom surface of the guide rail 31 is provided with a mounting through hole for mounting the cylinder 4, and an upwardly erected limit plate 311 is provided between the mounting through hole and the front end of the guide rail 31, and the upper edge of the limit plate 311 is higher than the lower edge of the shift plate 322. The limit plate 311 can be used to limit the movement of the lock tongue 32.
[0034] In this embodiment, a U-shaped limit opening is provided at the rear end of the lock tongue 32; the telescopic rod of the cylinder 4 is configured to be able to block the bottom edge of the U-shaped limit opening when fully extended to prevent the lock tongue 32 from moving inward. The U-shaped limit opening is used in this embodiment to prevent the lock tongue 32 from shaking, thereby further improving the stability of the safety lock.
[0035] In this embodiment, the front end of the locking tongue 32 is a bent piece structure that hooks downward and inward, and has better elasticity.
[0036] In this embodiment, the front end of the handle 2 is rotatably connected to the upper end of the inner cavity of the lock housing 1 through a rotating shaft, which has a simple structure and is easy to assemble.
[0037] In this embodiment, the cylinder 4 is electrically connected to the controller. In specific implementation, the cylinder 4 can be controlled by the controller to control whether it works, thereby realizing the function of allowing or prohibiting unlocking. The controller can be a controller of the automation equipment in the chassis, or an external control device connected to the automation equipment.
[0038] In one embodiment, the utility model provides a safety door, which includes a safety lock device as described in any of the above embodiments.
[0039] The above-mentioned safety door adopts the safety lock device in the above-mentioned embodiment, and can use the telescopic rod of the cylinder to block the rear end of the lock tongue when the chassis door is closed, thereby preventing the staff from accidentally opening the chassis door, which not only protects the safety of the automation equipment in the chassis, but also ensures the personal safety of the staff, thereby improving safety.
[0040] Other structures and operations of the safety lock device and the safety door according to the embodiment of the utility model are known to ordinary technicians in the field and will not be described in detail here.
[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0042] In the description of this specification, the reference terms "embodiment", "specific embodiment", "example" and the like mean that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present invention.
[0043] In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined with each other in any one or more embodiments or examples in a suitable manner without interference or contradiction.
Claims
1. A safety lock device, characterized in that: It comprises a lock shell with an open top surface, a handle rotatably arranged at the upper end of the inner cavity of the lock shell, a lock tongue assembly arranged at the lower end of the inner cavity of the lock shell, and a cylinder arranged at the bottom of the lock shell; The front side of the lock housing is provided with an opening, and the bottom surface of the lock housing is provided with a through hole; A push plate extending vertically downward is provided on the front side of the handle; The lock tongue assembly comprises a guide rail and a lock tongue slidably arranged in the guide rail, the front end of the lock tongue protrudes out of the lock housing through the opening; a shift opening is provided on the lock tongue, a shift plate protruding downward is provided at the rear edge of the shift opening, the push plate passes through the shift opening and the side surface of the push plate contacts the side surface of the shift plate; The cylinder passes through the through hole and is connected to the inner cavity of the lock housing and is fixed on the bottom surface of the guide rail. The telescopic rod of the cylinder is configured to block the rear end of the lock tongue in a fully extended state to prevent the lock tongue from moving inward.
2. A safety lock device according to claim 1, characterized in that: It also includes a cylinder mounting seat, wherein the cylinder mounting seat is a U-shaped structure; The U-shaped end surfaces of the cylinder mounting seat are fitted on the two side edges of the open top surface of the lock shell, one end of the cylinder is fixedly mounted on the U-shaped bottom surface of the cylinder mounting seat, and the other end of the cylinder is fixedly mounted on the bottom surface of the guide rail.
3. A safety lock device according to claim 1, characterized in that: The bottom surface of the guide rail is provided with a mounting through hole for mounting the cylinder, and an upwardly erected limiting plate is provided between the mounting through hole and the front end of the guide rail, and the upper edge of the limiting plate is higher than the lower edge of the shifting plate.
4. A safety lock device according to claim 1, characterized in that: A U-shaped limiting opening is arranged at the rear end of the locking tongue; the telescopic rod of the cylinder is configured to block the bottom edge of the U-shaped limiting opening in a fully extended state to prevent the locking tongue from moving inwards.
5. A safety lock device according to claim 1, characterized in that: The front end of the locking tongue is a bent piece structure that hooks inwardly downward.
6. A safety lock device according to claim 1, characterized in that: The front end of the handle is rotatably connected to the upper end of the inner cavity of the lock shell through a rotating shaft.
7. A safety lock device according to any one of claims 1 to 6, characterized in that: The cylinder is electrically connected to the controller.
8. A safety door, characterized in that: The safety door comprises a safety lock device as claimed in any one of claims 1 to 7.