A concealed signal shield lock
By designing a concealed signal shielding lock on the signal equipment, using a mechanical button structure and a metal lock base, the problems of existing locks affecting shielding effectiveness and being easily damaged are solved, achieving improvements in security and aesthetics, while simplifying operation and providing anti-theft functions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHENYANG RAILWAY SIGNAL
- Filing Date
- 2024-06-03
- Publication Date
- 2026-06-23
AI Technical Summary
When existing signal equipment locks are installed on signal cabinets or chassis, they affect the shielding effect, are easily damaged, increase the risk of equipment damage, occupy space, are cumbersome to operate, and the keys are easily lost, making them unable to be opened.
Design a concealed signal jamming lock that uses a mechanical button structure. The lock base and locking components are made of metal and are hidden inside the signal cabinet or chassis. The lock tongue is opened and closed by a spring and a limit component to avoid key matching. It is opened by a specific button combination.
While improving signal shielding effectiveness, it enhances security and aesthetics, simplifies operation, avoids key loss issues, and strengthens anti-theft performance.
Smart Images
Figure CN118517201B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of lock technology for signal equipment, and particularly relates to a concealed signal shielding lock. Background Technology
[0002] Currently, the door locks of signal cabinets or chassis on signal equipment all use keys to control the bolt, or keys to control a crank, which in turn controls the linkage and bolt. Existing signal equipment locks have the following disadvantages: First, to install the lock, a keyhole needs to be made in the door of the signal cabinet or chassis. Although the keyhole is covered by the lock body, most lock bodies are made of non-metallic materials, which weakens signal shielding, causing electromagnetic interference and severely affecting the shielding performance of the signal cabinet or chassis. Second, existing locks are installed on the upper surface of the door, exposed outside the signal cabinet or chassis, making them vulnerable to vandalism and increasing the risk of damage to the internal equipment. Furthermore, over time, aging and weathering of the locks will affect their quality and the aesthetic appearance of the signal cabinet or chassis. Third, existing locks themselves have a certain height; after installation, they increase the width of the signal cabinet or chassis, resulting in wasted space. Fourth, the traditional locks installed on existing signal cabinets or enclosures rely on keys to drive the lock cylinder or handle, which makes operation cumbersome. In addition, the key needs to be designed to match the lock, which increases design and material costs and wastes resources. Furthermore, if the key is lost, the signal cabinet or enclosure door cannot be opened and can only be opened by forcibly removing the door, which prevents the signal cabinet or enclosure door from being locked properly. Summary of the Invention
[0003] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a concealed signal shielding lock, which can be hidden inside the signal cabinet or chassis without affecting the shielding effect of the signal equipment. By setting the lock as a mechanical button structure, no matching key is required, making it easy to open.
[0004] To achieve the above objectives, the main technical solutions adopted by the present invention include:
[0005] A concealed signal shielding lock includes a lock base and a locking assembly. The lock base has a first inner corner hook. The locking assembly includes a locking hook and a second inner corner hook. The first and second inner corner hooks are hooked together. The locking assembly also includes a locking assembly housing. The locking hook includes a second connecting part, a second bent part, and a second inner corner hook that are sequentially fixedly connected or integrally formed. The end of the second connecting part away from the second inner corner hook is disposed inside the locking assembly housing. The front and rear ends of the second connecting part are connected to the inner sidewall of the locking assembly housing opposite to them by spring assemblies. The inner side of the second connecting part is connected to the inner sidewall of the locking assembly housing opposite to it by compression spring assemblies and tension spring assemblies. A spring control component is provided inside the locking assembly housing for releasing or limiting the compression spring. The spring assembly or tension spring assembly applies force to the second connecting part. The locking assembly also includes a first press rod, a second press rod, a third press rod, and a fourth press rod. The first and second press rods pass through a side wall of the outer shell of the locking assembly from the outside, and their tails are connected to the inner side wall of the locking assembly shell on the opposite side via a spring. The third and fourth press rods pass through a side wall of the outer shell and the second connecting part of the locking hook from the outside of the locking assembly from the outside, and their tails are connected to the inner side wall of the locking assembly shell on the opposite side via a spring. The first press rod is connected to a spring control element and is used to drive the spring control element to release or restrict the compression spring assembly or tension spring assembly. The second press rod is used to prevent the spring control element from releasing or restricting the compression spring assembly or tension spring assembly. The third press rod is used to release or restrict the second connecting part of the locking hook. The fourth press rod avoids the travel of the second connecting part of the locking hook.
[0006] Furthermore, both the lock base and the locking assembly are made of metal.
[0007] Furthermore, the included angle of the first inner angle hook is 60°, and its outer surface is an inclined plane parallel to the included angle; the included angle of the second inner angle hook is 60°, and its outer surface is an inclined plane parallel to the included angle.
[0008] Furthermore, the top and / or bottom of the second connecting part are provided with limiting protrusions, and the inner sidewall of the locking component housing opposite to it is provided with a limiting component. The limiting component includes a first limiting member, a second limiting member, and a third limiting member. The second limiting member is located between the first limiting member and the third limiting member which are disposed opposite to each other. The first limiting member and the second limiting member, as well as the second limiting member and the third limiting member, are respectively provided with first and second moving channels that match the width and position of the limiting protrusion. The end of the second limiting member within the moving stroke range of the limiting protrusion is provided with a transition slope for introducing the limiting protrusion from the first moving channel into the second moving channel. The displacement of the limiting protrusion between the first and second moving channels is coordinated with the opening and closing displacement of the first inner angle hook and the second inner angle hook.
[0009] Furthermore, two sets of spring assemblies are respectively provided between the front and rear of the second connecting part and the inner sidewall of the locking assembly housing opposite to it, and the two sets of spring assemblies on each side are arranged symmetrically with respect to the transverse central axis.
[0010] Furthermore, one end of the tension spring assembly is fixedly connected to the inner wall of the locking assembly housing, and the other end is fixedly connected to the inner side of the second connecting part; one end of the compression spring assembly is fixedly connected to the inner wall of the locking assembly housing, and the other end is movably limited to the inner side of the second connecting part.
[0011] Furthermore, the spring control component is disposed between the tension spring assembly and the compression spring assembly. The spring control component includes a rotating plate, on which a gear is connected via a connecting post. The connecting post and the gear are hollow and contain a torsion spring. A spring control component mounting seat is provided at a corresponding position on the inner side wall of the locking assembly housing. The connecting post and the gear are sleeved on the outside of the spring control component mounting seat. One end of the torsion spring is fixedly connected to the spring control component mounting seat, and the other end is connected to the free end of the connecting post 2-6-2-5. A fourth limiting component is provided on one side of the rotating plate, and a fifth limiting component is provided on the other side. The rotation of the gear drives the fourth limiting component on the rotating plate. The fifth limiting member moves between the compression spring assembly and the tension spring assembly. When the fourth limiting member moves to the tension spring assembly, the fourth limiting member is within the stroke range of the tension spring, limiting the tension spring from applying tension. The compression spring assembly releases and applies pressure to the second connecting part. When the fifth limiting member moves to the compression spring assembly, the fifth limiting member is within the stroke range of the compression spring assembly, limiting the compression spring from applying pressure to the second connecting part. The tension spring assembly releases and applies tension to the second connecting part. The spring extension and retraction strokes of the compression spring assembly and the tension spring assembly applying pressure and tension to the second connecting part are coordinated with the opening and closing displacements of the first inner angle hook and the second inner angle hook.
[0012] Furthermore, the first push rod is provided with a toothed groove, which meshes with the gear of the spring control component.
[0013] Furthermore, the second push rod is provided with a gear slot. When the second push rod is not pressed, the gear slot accommodates the gear of the spring control component. When the second push rod is pressed, one side of the gear slot is placed between the teeth of the gear to limit the gear.
[0014] Furthermore, the third push rod includes a first rod, a second rod, and a third rod that are fixedly connected or integrally formed in sequence. The diameters of the first rod and the third rod are equal, and the diameter of the second rod is smaller than the diameters of the first rod and the third rod. A first movable through hole is provided on the second connecting part at the corresponding position of the third push rod. The first movable through hole includes a first circular hole, a first elongated hole, and a flared hole that are sequentially interconnected from the inner side of the second connecting part toward the side away from that side. The inner diameter of the first circular hole is equal to the diameter of the first rod, the inner diameter of the first elongated hole is equal to the diameter of the second rod, the diameter of the circular hole facing the second inner corner hook is larger than the diameter of the circular hole away from the second inner corner hook, and the inner diameter of the circular hole away from the second inner corner hook is the same as the diameter of the third rod. The travel distance of the third push rod within the first movable through hole is coordinated with the opening and closing displacement of the first inner corner hook and the second inner corner hook.
[0015] Furthermore, a second movable through hole is provided on the second connecting part at the position corresponding to the fourth push rod. The inner diameter of the second movable through hole is larger than the diameter at the position corresponding to the fourth push rod. During the opening and closing of the first inner angle hook and the second inner angle hook, the fourth push rod avoids the travel of the second connecting part of the locking hook.
[0016] The beneficial effects of this invention are as follows: The concealed signal shielding lock provided by this invention can be hidden inside a signal cabinet or chassis, improving the security and aesthetics of the cabinet without affecting the shielding effect of the signal equipment. By setting the lock to a mechanical button structure, no key is required, making it easy to open while ensuring security. This avoids situations where the key is lost and cannot be unlocked, thus requiring damage to the door. The specific button combination serves as an anti-theft measure. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of the concealed signal shielding lock of the present invention;
[0018] Figure 2 This is a schematic diagram of the lock seat structure;
[0019] Figure 3 This is a schematic diagram of the component structure;
[0020] Figure 4 This is a schematic diagram of the front structure of the locking hook;
[0021] Figure 5 This is a schematic diagram of the structure behind the locking hook;
[0022] Figure 6 A schematic diagram of a shielded lock with one side plate of the locking component housing removed;
[0023] Figure 7 A cross-sectional structural diagram of the third and fourth push rods of the shielded lock;
[0024] Figure 8 A cross-sectional view of the first and second push rods of the shielded lock;
[0025] Figure 9 A schematic diagram of the housing structure for the locking component;
[0026] Figure 10 This is a schematic diagram of the limit component structure;
[0027] Figure 11 A schematic diagram of a shielded lock with the side panel of the locking component housing and the locking hook removed;
[0028] Figure 12 This is a schematic diagram of the spring assembly structure;
[0029] Figure 13 This is a schematic diagram of the tension spring assembly structure;
[0030] Figure 14 This is a schematic diagram of the compression spring assembly structure;
[0031] Figure 15 This is a schematic diagram of the main structure of the spring control component;
[0032] Figure 16 This is a schematic diagram of the first push rod structure;
[0033] Figure 17 This is a schematic diagram of the second push rod structure;
[0034] Figure 18 This is a schematic diagram of the third push rod structure;
[0035] Figure 19 This is a schematic diagram of the fourth push rod structure;
[0036] Figure 20 A schematic diagram showing the structure of the cabinet with the door removed so that the shielded lock can be installed behind the cabinet.
[0037] Figure 21 A longitudinal sectional view of the cabinet door with the shielding lock installed.
[0038] Figure 22 A cross-sectional view of the cabinet structure with the shielded lock installed at the rear.
[0039] Figure 23 This is a schematic diagram of the cabinet structure after it is locked.
[0040] Components in the diagram: 1 is the lock base, 1-1 is the lock base fixing part, 1-2 is the lock base hook, 1-2-1 is the first connecting part, 1-2-2 is the first bending part, 1-2-3 is the first inner corner hook, 2 is the locking assembly, 2-1 is the locking assembly housing, 2-1-1 is the limiting assembly, 2-1-1-1 is the first limiting member, 2-1-1-2 is the second limiting member, 2-1-1-3 is the third limiting member, 2-2 is the locking hook, 2-2-1 is the second connecting part, 2-2-1-1 is the top of the second connecting part, 2-2-1-2 is the bottom of the second connecting part, 2-2-1... -3 is a limiting protrusion, 2-2-1-4 is the inner side of the second connecting part, 2-2-1-5 is the front of the second connecting part, 2-2-1-6 is the rear of the second connecting part, 2-2-1-7 is the limiting part of the compression spring assembly, 2-2-1-7-1 is the limiting groove of the compression spring assembly base, 2-2-1-8 is the first moving through hole, 2-2-1-8-1 is the first round hole, 2-2-1-8-2 is the first elongated hole, 2-2-1-8-3 is the flared hole, 2-2-1-9 is the second moving through hole, 2-2-1-9-1 is the second round hole, 2-2-1-9-2 is... The second elongated hole, 2-2-1-9-3 is the third round hole, 2-2-2 is the second bend, 2-2-3 is the second inner angle hook, 2-3 is the spring assembly, 2-4 is the compression spring assembly, 2-4-1 is the compression spring, 2-4-2 is the first spring base, 2-4-3 is the first spring base protrusion, 2-5 is the tension spring assembly, 2-5-1 is the tension spring, 2-5-2 is the second spring base, 2-6 is the spring control component, 2-6-1 is the spring control component mounting base, 2-6-2 is the spring control component body, 2-6-2-1 is the rotating plate, and 2-6-2-2 is the fourth limiting component. 2-6-2-3 is the fifth limiting component, 2-6-2-4 is a gear, 2-6-2-5 is a connecting post, 2-6-2-6 is a torsion spring, 2-7 is the sixth limiting component, 2-8 is the seventh limiting component, 2-9 is the first pressing rod, 2-9-1 is a toothed groove, 2-10 is the second pressing rod, 2-10-1 is a gear slot, 2-11 is the third pressing rod, 2-11-1 is the first rod, 2-11-2 is the second rod, 2-11-3 is the third rod, 2-12 is the fourth pressing rod, 2-12-1 is the fourth rod, 2-12-2 is the fifth rod, and 2-12-3 is the sixth rod. Detailed Implementation
[0041] To better explain and facilitate understanding of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0042] This invention provides a concealed signal shielding lock, such as Figure 1 As shown, it includes a lock base 1 and a locking assembly 2. The lock base 1 is provided with a first inner corner hook 1-2-3, specifically, as... Figure 2As shown, the lock seat 1 includes a lock seat fixing part 1-1 for fixed connection with a signal cabinet, chassis, or other cabinet door frame. The lock seat fixing part 1-1 is fixedly connected to or integrally formed with a lock seat hook 1-2. The lock seat hook 1-2 includes a first connecting part 1-2-1, a first bending part 1-2-2, and a first inner angle hook 1-2-3. One end of the first connecting part 1-2-1 is perpendicularly fixedly connected to or integrally formed with the lock seat fixing part 1-1, and the other end is perpendicularly fixedly connected to or integrally formed with the first bending part 1-2-2 which is opposite to the lock seat fixing part 1-1. The other end of the first bending part 1-2-2 is fixedly connected to or integrally formed with the first inner angle hook 1-2-3. The first inner angle hook 1-2-3 bends toward the lock seat fixing part 1-1. The included angle of the first inner angle hook 1-2-3 is 60°, and its outer surface is an inclined surface parallel to the included angle. The locking component 2 includes a locking hook 2-2, which has a second inner angle hook 2-2-3. The first inner angle hook 1-2-3 and the second inner angle hook 2-2-3 are hooked and engaged with each other. Specifically, as shown... Figure 3 As shown, the locking hook 2-2 includes a second connecting part 2-2-1, a second bending part 2-2-2, and a second inner angle hook 2-2-3. The second connecting part 2-2-1 is a plate-like structure. One end of the second bending part 2-2-2 is perpendicularly fixedly connected to the second connecting part 2-2-1 or integrally formed. The second bending part 2-2-2 is arranged towards the lock seat 1. The other end of the second bending part 2-2-2 is fixedly connected to the second inner angle hook 2-2-3 or integrally formed. The second inner angle hook 2-2-3 bends towards the second connecting part 2-2-1, with an inner included angle of 60° and an outer surface that is a slope parallel to the inner included angle. The first inner angle hook 1-2-3 of the lock base 1 and the second inner angle hook 2-2-3 of the locking component 2 hook and engage with each other. The outer surfaces of the first inner angle hook 1-2-3 and the second inner angle hook 2-2-3 are both set as inclined surfaces parallel to the inner angle. When locking, it is convenient for the lock base hook 1-2 and the locking hook 2-2 to fit together and automatically hook and lock under the guidance of the inclined surface.
[0043] The locking component 2 also includes a locking component housing 2-1, specifically, as shown in the figure. Figure 9 As shown, the locking component housing 2-1 can be a box-shaped housing with an opening on one side, and the locking component housing 2-1 is fixedly connected to the door of the signal cabinet, chassis, or other cabinet. Figure 6 , 12As shown, the end of the second connecting part 2-2-1 away from the second inner corner hook 2-2-3 is disposed inside the locking component housing 2-1. The front and rear ends of the second connecting part 2-2-1 are connected to the inner sidewalls of the locking component housing 2-1 opposite to them by spring assemblies 2-3. Specifically, two sets of spring assemblies 2-3 are respectively disposed on the front end 2-2-1-5 and the rear end 2-2-1-6 of the second connecting part 2-2-1. The two sets of spring assemblies 2-3 on each side are arranged on the same vertical line, symmetrically arranged with respect to the horizontal central axis. The spring assemblies 2-3 on the front and rear ends of the second connecting part 2-2-1 are correspondingly arranged. Figure 4-5 As shown, the second connecting part 2-2-1 has a limiting protrusion 2-2-1-3 at the top 2-2-1-1 and / or the bottom 2-2-1-2. Specifically, the limiting protrusion 2-2-1-3 is a parallelogram, such as... Figure 10 As shown, a limiting component 2-1-1 is provided on the inner sidewall of the locking component housing 2-1 opposite to it. The limiting component 2-1-1 includes a first limiting member 2-1-1-1, a second limiting member 2-1-1-2, and a third limiting member 2-1-1-3. The second limiting member 2-1-1-2 is located between the oppositely arranged first limiting member 2-1-1-1 and third limiting member 2-1-1-3. First and second moving channels matching the width and position of the limiting protrusion 2-2-1-3 are respectively provided between the first limiting member 2-1-1-1 and the second limiting member 2-1-1-2, and between the second limiting member 2-1-1-2 and the third limiting member 2-1-1-3. 1-1-2 A transition slope is provided at the end of the limiting protrusion 2-2-1-3 within its travel range to guide the limiting protrusion 2-2-1-3 from the first moving channel into the second moving channel. The displacement of the limiting protrusion 2-2-1-3 between the first and second moving channels corresponds to the opening and closing displacement of the first inner angle hook 1-2-3 and the second inner angle hook 2-2-3. That is, after the outer surfaces of the first inner angle hook 1-2-3 and the second inner angle hook 2-2-3 are in contact, during the process of the first inner angle hook 1-2-3 and the second inner angle hook 2-2-3 moving along the slope to the hook position, the limiting protrusion 2-2-1-3 completes its movement from the first moving channel to the second moving channel. The unlocking process is the reverse. Through the setting of the spring assembly 2-3, the limiting protrusion 2-2-1-3, and the limiting assembly 2-1-1, the locking hook 2-2 can be smoothly limited within the locking assembly housing 2-1.
[0044] The inner side 2-2-1-4 of the second connecting part 2-2-1 is connected to the inner wall of the locking assembly housing 2-1 opposite to it via a compression spring assembly 2-4 and a tension spring assembly 2-5. The locking assembly housing 2-1 has a spring control member 2-6 inside, which is used to release or limit the force applied to the second connecting part 2-2-1 by the compression spring assembly 2-4 or the tension spring assembly 2-5. Specifically, one end of the tension spring assembly 2-5 is fixedly connected to the inner wall of the locking assembly housing 2-1, and the other end is fixedly connected to the inner side 2-2-1-4 of the second connecting part 2-2-1. One end of the compression spring assembly 2-4 is fixedly connected to the inner wall of the locking assembly housing 2-1, and the other end is movablely limited to the inner side of the second connecting part 2-2-1. More specifically, as shown... Figure 13 As shown, the tension spring assembly 2-5 includes a tension spring 2-5-1 and a second spring base 2-5-2 fixedly connected to each other. The other end of the tension spring 2-5-1 is fixedly connected to the inner wall of the corresponding position of the locking assembly housing 2-1. The other end of the second spring base 2-5-2 is fixedly connected to the inner side 2-2-1-4 of the second connecting part 2-2-1. The tension spring assembly 2-5 is used to provide a pulling force to the locking hook 2-2 towards the inside of the locking assembly housing 2-1. Figure 11 , 14 As shown, the compression spring assembly 2-4 includes a compression spring 2-4-1 and a first spring base 2-4-2 fixedly connected to each other. The first spring base 2-4-2 has a first spring base protrusion 2-4-3 on the side away from the compression spring 2-4-1. The second connecting part 2-2-1 has a compression spring assembly limiting part 2-2-1-7 at the corresponding position of the first spring base protrusion 2-4-3. The compression spring assembly limiting part 2-2-1-7 has a compression spring assembly base limiting groove 2-2-1-7-1. One end of the compression spring 2-4-1 is fixedly connected to the inner side wall of the corresponding position of the locking assembly housing 2-1. The first spring base protrusion 2-4-3 is inserted into the compression spring assembly base limiting groove 2-2-1-7-1 of the compression spring assembly limiting part 2-2-1-7, which facilitates the movement of the locking hook 2-2. The compression spring assembly 2-4 is used to provide pressure to the locking hook 2-2 towards the outside of the locking assembly housing 2-1. Specifically, the spring control element 2-6 is disposed between the tension spring assembly 2-5 and the compression spring assembly 2-4, such as... Figure 15As shown, the spring control component 2-6 includes a rotating plate 2-6-2-1. Specifically, the rotating plate 2-6-2-1 can be a quarter-circle sector. A gear 2-6-2-4 is connected to the rotating plate 2-6-2-1 via a connecting post 2-6-2-5. Both the connecting post 2-6-2-5 and the gear 2-6-2-4 are hollow and contain a torsion spring 2-6-2-6. A spring control component mounting seat 2-6-1 is located at a corresponding position on the inner wall of the locking assembly housing 2-1. The connecting post 2-6-2-5 and the gear 2-6-2-4 are fitted onto the outside of the spring control component mounting seat 2-6-1. One end of the torsion spring 2-6-2-6 is fixedly connected to the spring control component mounting seat 2-6-1, and the other end is connected to the connecting post 2-6-2-5 as a free end. A fourth limiting member 2-6-2-2 is provided on one side of the rotating plate 2-6-2-1, and a fifth limiting member 2-6-2-3 is provided on the other side. The rotation of the gear 2-6-2-4 drives the fourth limiting member 2-6-2-2 on the rotating plate 2-6-2-1. The fifth limiting member 2-6-2-3 moves between the compression spring assembly 2-4 and the tension spring assembly 2-5. When the fourth limiting member 2-6-2-2 moves to the tension spring assembly 2-5, the fourth limiting member 2-6-2-2 is within the stroke range of the tension spring, limiting the tension spring from applying tension. The compression spring assembly 2-4 is released, applying pressure to the second connecting part 2-2-1. When the fifth limiting member 2-6-2-3 moves to the compression spring assembly 2-4, the fifth limiting member is within the stroke range of the compression spring assembly 2-4, limiting the compression spring from applying pressure to the second connecting part 2-2-1. The tension spring assembly 2-5 is released, applying tension to the second connecting part 2-2-1. The spring extension stroke of the compression spring assembly 2-4 and the tension spring assembly 2-5 on the second connecting part 2-2-1 is coordinated with the opening and closing displacement of the first inner angle hook 1-2-3 and the second inner angle hook 2-2-3. More specifically, in order to prevent the rotation of the rotating plate 2-6-2-1 from being too excessive, a sixth limiting member 2-7 and a seventh limiting member 2-8 can be provided on both sides of the rotating plate 2-6-2-1 to limit its movement range. One end of the sixth limiting member 2-7 and the seventh limiting member 2-8 is fixed on the inner side wall of the outer shell 2-1, and the other end limits the rotation range of the rotating plate 2-6-2-1.
[0045] The locking assembly 2 further includes a first push rod 2-9, a second push rod 2-10, a third push rod 2-11, and a fourth push rod 2-12. The first push rod 2-9 and the second push rod 2-10 extend from the outside of the locking assembly housing 2-1 through a side wall of the housing, and their tails are connected to the inner side wall of the locking assembly housing 2-1 on the opposite side via springs. The third push rod 2-11 and the fourth push rod 2-12 extend from the outside of the locking assembly housing 2-1 through a side wall of the housing and the second connecting part 2-2-1 of the locking hook 2-2 in sequence, and their tails are connected to the inner side of the locking assembly housing 2-1 on the opposite side via springs. The first push rod 2-9 is connected to the spring control component 2-6, and is used to drive the spring control component 2-6 to release or limit the compression spring assembly 2-4 or the tension spring assembly 2-5. The second push rod 2-10 is used to prevent the spring control component 2-6 from releasing or limiting the compression spring assembly 2-4 or the tension spring assembly 2-5. The third push rod 2-11 is used to release or limit the second connecting part 2-2-1 of the locking hook 2-2. The fourth push rod 2-12 avoids the travel of the second connecting part 2-2-1 of the locking hook 2-2. Both the lock seat 1 and the locking assembly 2 are made of metal. The operating ends of the first push rod 2-9, the second push rod 2-10, the third push rod 2-11, and the fourth push rod 2-12 can be equipped with buttons for easy operation.
[0046] Specifically, such as Figure 7-8 , Figure 16-19As shown, the first push rod 2-9 has a toothed groove 2-9-1, which meshes with the gear 2-6-2-4 of the spring control member 2-6. The second push rod 2-10 has a gear slot 2-10-1. When the second push rod 2-10 is not pressed, the gear slot 2-10-1 accommodates the gear 2-6-2-4 of the spring control member 2-6. When the second push rod 2-10 is pressed, one side of the gear slot 2-10-1 is positioned between the teeth of the gear 2-6-2-4, limiting the position of the gear 2-6-2-4. The third push rod 2-11 includes a first rod 2-11-1, a second rod 2-11-2, and a third rod 2-11-3, which are sequentially fixedly connected or integrally formed. The diameters of the first rod 2-11-1 and the third rod 2-11-3 are equal, while the diameter of the second rod 2-11-2 is smaller than that of the first rod 2-11-1 and the third rod 2-11-3. A first movable through hole 2-2-1-8 is provided on the second connecting part 2-2-1 at a position corresponding to the third push rod 2-11. The first movable through hole 2-2-1-8 includes a first circular hole 2-2-1-8-1, a first elongated hole 2-2-1-8-2, and a flared hole 2-2-1-8-3, which are sequentially interconnected from the inner side of the second connecting part 2-2-1 towards the side away from it. The inner diameter of the first circular hole 2-2-1-8-1 is equal to the diameter of the first rod 2-11-1. The inner diameter of the first elongated hole 2-2-1 is equal to that of the first rod 2-11-1. The inner diameter of -8-2 is equal to the diameter of the second rod 2-11-2. The diameter of the round hole on the side of the horn hole 2-2-1-8-3 facing the second inner angle hook 2-2-3 is larger than the diameter of the round hole on the side away from the second inner angle hook 2-2-3. The inner diameter of the round hole on the side of the horn hole 2-2-1-8-3 away from the second inner angle hook 2-2-3 is the same as the diameter of the third rod 2-11-3. The stroke of the third push rod 2-11 within the first moving through hole 2-2-1-8 is matched with the opening and closing displacement of the first inner angle hook 1-2-3 and the second inner angle hook 2-2-3. That is, after the outer surfaces of the first inner angle hook 1-2-3 and the second inner angle hook 2-2-3 are attached, during the process of the first inner angle hook 1-2-3 and the second inner angle hook 2-2-3 moving along the inclined plane to the hook position, the inclined plane of the horn hole 2-2-1-8-3 provides the moving space for the third push rod 2-11. A second movable through hole 2-2-1-9 is provided on the second connecting part 2-2-1 at the position corresponding to the fourth push rod 2-12. The inner diameter of the second movable through hole 2-2-1-9 is larger than the diameter at the position corresponding to the fourth push rod 2-12. During the opening and closing of the first inner angle hook 1-2-3 and the second inner angle hook 2-2-3, the fourth push rod 2-12 avoids the travel of the second connecting part 2-2-1 of the locking hook 2-2.More specifically, the fourth lever 2-12 includes a fourth lever 2-12-1, a fifth lever 2-12-2, and a sixth lever 2-12-3 that are sequentially fixedly connected or integrally formed. The fourth lever 2-12-1 and the sixth lever 2-12-3 have the same diameter, and their diameter is larger than that of the fifth lever 2-12-2. The second movable through hole 2-2-1-9 includes a second circular hole 2-2-1-9-1, a second elongated hole 2-2-1-9-2, and a third circular hole 2-2-1-9-3 that are sequentially interconnected from the inner side 2-2-1-4 of the second connecting part 2-2-1 towards the direction away from that side. The diameters of the second circular holes 2-2-1-9-1 and the third circular holes 2-2-1-9-3 are the same as the diameters of the fourth lever 2-12-1 and the sixth lever 2-12-3, while the diameter of the fifth lever 2-12-2 is smaller than that of the others. Regarding the diameters of the second round hole 2-2-1-9-1, the second elongated hole 2-2-1-9-2, and the third round hole 2-2-1-9-3, the difference between the fourth push rod 2-12 and the third push rod 2-11 is that the fifth rod 2-12-2 of the fourth push rod 2-12 is longer than the second rod 2-11-2 of the third push rod 2-11. During the opening and closing of the locking hook 2-2, the fifth rod 2-12-2 is always within the travel range of the second movable through hole 2-2-1-9 and does not affect the locking hook 2-2. To increase interference, multiple combinations of the fourth push rod 2-12 and the second movable through hole 2-2-1-9 can be set.
[0047] In practical applications, lock seat 1 can be fixedly connected to the signal cabinet, chassis, or other cabinet door frame, such as... Figure 20-22 As shown, the locking component 2 can be fixedly connected to the door of the signal cabinet, chassis, or other enclosure. The locking component 2 is hidden inside the cabinet door, such as... Figure 23As shown, the button ends of the first button lever 2-9, the second button lever 2-10, the third button lever 2-11, and the fourth button lever 2-12 are exposed on the side of the cabinet door. This arrangement does not affect the front of the cabinet door, leaving only button holes on the side. By reasonably setting the size of the button openings and their coordination with the buttons, along with the all-metal lock body, the signal shielding function of the signal cabinet or chassis is not affected, while improving the security and aesthetics of the cabinet. To unlock, the third button lever 2-11 and the first button lever 2-9 must be pressed simultaneously. Pressing the third button lever 2-11 engages the locking hook 2-2, and pressing the first button lever 2-9 causes the spring assembly 2-4 to provide pressure on the second connecting part 2-2-1, disengaging the locking hook 2-2 from the lock seat hook 1-2. Pressing the fourth lever 2-12 is ineffective; pressing the second lever 2-10 will cause the gear slot 2-10-1 of the second lever 2-10 to jam gear 2-6-2-4. Only by simultaneously pressing the third lever 2-11 and the first lever 2-9 can the lock be opened; other buttons or button combinations will not unlock. This invention allows unlocking by knowing the unlocking button combination, eliminating the need for a key and avoiding situations where a lost key prevents unlocking and necessitates damage to the door. Specific button combinations serve an anti-theft function. When locking, the outer bevel of the second inner angle hook 2-2-3 of the locking hook 2-2 and the outer bevel of the first inner angle hook 1-2-3 of the lock seat hook 1-2 are designed so that the two hooks automatically engage along the bevel after contact.
[0048] The concealed signal shielding lock of the present invention can also be used in other places where a lock body is required, and the material of the lock body can also be changed according to actual needs.
[0049] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any modifications, alterations, substitutions, and variations made by those skilled in the art to the above embodiments are within the scope of the present invention.
Claims
1. A concealed signal shielding lock, characterized in that: The lock assembly includes a lock base (1) and a locking component (2). The lock base (1) is provided with a first inner corner hook (1-2-3). The locking component (2) includes a locking hook (2-2). The locking hook (2-2) is provided with a second inner corner hook (2-2-3). The first inner corner hook (1-2-3) and the second inner corner hook (2-2-3) are hooked and engaged with each other. The locking component (2) also includes a locking component housing (2-1). The locking hook (2-2) includes a second connecting part (2-2-1), a second bending part (2-2-2), and a second inner corner hook (2-2-3) that are sequentially fixedly connected or integrally formed. 2-1) The end furthest from the second inner corner hook (2-2-3) is located inside the locking assembly housing (2-1). The front and rear ends of the second connecting part (2-2-1) are connected to the corresponding inner sidewalls of the locking assembly housing (2-1) via spring assemblies (2-3). The inner side of the second connecting part (2-2-1) is connected to the corresponding inner sidewalls of the locking assembly housing (2-1) via compression spring assemblies (2-4) and tension spring assemblies (2-5). The locking assembly housing (2-1) is equipped with a spring control element (2-6), which is used to release or limit the compression spring assembly (2-4) or the tension spring assembly (2-5). The locking assembly (2) further includes a first push rod (2-9), a second push rod (2-10), a third push rod (2-11), and a fourth push rod (2-12). The first push rod (2-9) and the second push rod (2-10) pass through a side wall of the outer shell of the locking assembly (2-1) and are connected to the inner side wall of the opposite side of the locking assembly (2-1) via a spring. The third push rod (2-11) and the fourth push rod (2-12) pass through a side wall of the outer shell and the second connecting part (2-2-1) of the locking hook (2-2) in sequence from the outer shell of the locking assembly (2-1). The tails are connected to the inner side wall of the locking assembly (2-1) via a spring. The first push rod (2-9) is connected to the inner wall of the locking assembly housing (2-1) on the opposite side. It is connected to the spring control member (2-6) and is used to drive the spring control member (2-6) to release or limit the compression spring assembly (2-4) or the tension spring assembly (2-5). The second push rod (2-10) is used to prevent the spring control member (2-6) from releasing or limiting the compression spring assembly (2-4) or the tension spring assembly (2-5). The third push rod (2-11) is used to release or limit the second connecting part (2-2-1) of the locking hook (2-2). The fourth push rod (2-12) avoids the travel of the second connecting part (2-2-1) of the locking hook (2-2).
2. The concealed signal shielding lock according to claim 1, characterized in that: Both the lock base (1) and the locking component (2) are made of metal.
3. The concealed signal shielding lock according to claim 1, characterized in that: The first inner angle hook (1-2-3) has an inner angle of 60° and its outer surface is a slope parallel to the inner angle. The second inner angle hook (2-2-3) has an inner angle of 60° and its outer surface is a slope parallel to the inner angle.
4. A concealed signal shielding lock according to claim 1, characterized in that: The second connecting part (2-2-1) has a limiting protrusion (2-2-1-3) at its top and / or bottom. A limiting component (2-1-1) is provided on the inner wall of the locking assembly housing (2-1) opposite to the protrusion. The limiting component (2-1-1) includes a first limiting member (2-1-1-1), a second limiting member (2-1-1-2), and a third limiting member (2-1-1-3). The second limiting member (2-1-1-2) is located between the opposing first limiting member (2-1-1-1) and the third limiting member (2-1-1-3). The first limiting member (2-1-1-1) and the second limiting member (2-1-1-2) are positioned opposite each other. The second limiting member (2-1-1-2) and the third limiting member (2-1-1-3) are respectively provided with a first and a second moving channel that match the width and position of the limiting protrusion (2-2-1-3). The second limiting member (2-1-1-2) is provided with a transition slope at the end of the limiting protrusion (2-2-1-3) within the moving stroke range of the limiting protrusion (2-2-1-3) for introducing the limiting protrusion (2-2-1-3) from the first moving channel into the second moving channel. The displacement of the limiting protrusion (2-2-1-3) between the first and second moving channels is matched with the opening and closing displacement of the first inner angle hook (1-2-3) and the second inner angle hook (2-2-3).
5. A concealed signal shielding lock according to claim 1, characterized in that: One end of the tension spring assembly (2-5) is fixedly connected to the inner wall of the locking assembly housing (2-1), and the other end is fixedly connected to the inner side of the second connecting part (2-2-1). One end of the compression spring assembly (2-4) is fixedly connected to the inner wall of the locking assembly housing (2-1), and the other end is movablely limited to the inner side of the second connecting part (2-2-1).
6. A concealed signal shielding lock according to claim 1 or 5, characterized in that: The spring control component (2-6) is disposed between the tension spring assembly (2-5) and the compression spring assembly (2-4). The spring control component (2-6) includes a rotating plate (2-6-2-1). A gear (2-6-2-4) is connected to the rotating plate (2-6-2-1) via a connecting post (2-6-2-5). The connecting post (2-6-2-5) and the gear (2-6-2-4) are hollow inside and equipped with torsion springs (2-6-2-6). The spring control component is located at a corresponding position on the inner wall of the locking assembly housing (2-1). Mounting base (2-6-1), connecting post (2-6-2-5), and gear (2-6-2-4) are sleeved on the outside of spring control component mounting base (2-6-1). One end of torsion spring (2-6-2-6) is fixedly connected to spring control component mounting base (2-6-1), and the other end is connected to connecting post 2-6-2-5 as a free end. A fourth limiting member (2-6-2-2) is provided on one side of the rotating plate (2-6-2-1), and a fifth limiting member (2-6-2-3) is provided on the other side. The gear (2-6-2-4) The rotation causes the fourth limiting member (2-6-2-2) and the fifth limiting member (2-6-2-3) on the rotating plate (2-6-2-1) to move between the compression spring assembly (2-4) and the tension spring assembly (2-5). When the fourth limiting member (2-6-2-2) moves to the tension spring assembly (2-5), it is within the stroke range of the tension spring, limiting the tension spring. The compression spring assembly (2-4) releases, applying pressure to the second connecting part (2-2-1). When the fifth limiting member (2-6-2-2) moves to the tension spring assembly (2-5), it is within the stroke range of the tension spring, limiting the tension spring. The compression spring assembly (2-4) releases, applying pressure to the second connecting part (2-2-1). 2-3) When the fifth limiting member moves to the compression spring assembly (2-4), it is within the stroke range of the compression spring assembly (2-4) applying pressure, limiting the compression spring from applying pressure to the second connecting part (2-2-1). The tension spring assembly (2-5) is released, applying tension to the second connecting part (2-2-1). The spring extension stroke of the compression spring assembly (2-4) and tension spring assembly (2-5) applying pressure and tension to the second connecting part (2-2-1) is matched with the opening and closing displacement of the first inner angle hook (1-2-3) and the second inner angle hook (2-2-3).
7. A concealed signal shielding lock according to claim 1, characterized in that: The first push rod (2-9) is provided with a toothed groove (2-9-1), which meshes with the gear (2-6-2-4) of the spring control component (2-6).
8. A concealed signal shielding lock according to claim 1, characterized in that: The second push rod (2-10) has a gear slot (2-10-1). When the second push rod (2-10) is not pressed, the gear slot (2-10-1) accommodates the gear (2-6-2-4) of the spring control member (2-6). When the second push rod (2-10) is pressed, one side of the gear slot (2-10-1) is placed between the teeth of the gear (2-6-2-4) to limit the gear (2-6-2-4).
9. A concealed signal shielding lock according to claim 1, characterized in that: The third push rod (2-11) includes a first rod (2-11-1), a second rod (2-11-2), and a third rod (2-11-3) that are sequentially fixedly connected or integrally formed. The diameters of the first rod (2-11-1) and the third rod (2-11-3) are equal, while the diameter of the second rod (2-11-2) is smaller than the diameters of the first rod (2-11-1) and the third rod (2-11-3). A first movable through hole (2-2-1-8) is provided on the second connecting part (2-2-1) at a position corresponding to the third push rod (2-11). The first movable through hole (2-2-1-8) includes a first circular hole (2-2-1-8-1), a first elongated hole (2-2-1-8-2), and a horn-shaped hole that are sequentially interconnected from the inner side of the second connecting part (2-2-1) toward the side away from it. Hole (2-2-1-8-3), the inner diameter of the first round hole (2-2-1-8-1) is equal to the diameter of the first rod (2-11-1), the inner diameter of the first elongated hole (2-2-1-8-2) is equal to the diameter of the second rod (2-11-2), the diameter of the round hole (2-2-1-8-3) facing the second inner angle hook (2-2-3) is larger than the diameter of the round hole (2-2-3) away from the second inner angle hook (2-2-3), the inner diameter of the round hole (2-2-1-8-3) away from the second inner angle hook (2-2-3) is the same as the diameter of the third rod (2-11-3), the stroke of the third push rod (2-11) moving in the first moving through hole (2-2-1-8) is matched with the opening and closing displacement of the first inner angle hook (1-2-3) and the second inner angle hook (2-2-3).
10. A concealed signal shielding lock according to claim 1, characterized in that: The second connecting part (2-2-1) has a second movable through hole (2-2-1-9) at the position corresponding to the fourth push rod (2-12). The inner diameter of the second movable through hole (2-2-1-9) is larger than the diameter at the position corresponding to the fourth push rod (2-12). During the opening and closing of the first inner angle hook (1-2-3) and the second inner angle hook (2-2-3), the fourth push rod (2-12) avoids the travel of the second connecting part (2-2-1) of the locking hook (2-2).