Electromagnetic lock power-off emergency unlocking structure and office storage cabinet
By designing the movable connection between the lock hook assembly and the electromagnetic lock assembly and the connecting rod return spring structure, the problem that the cabinet electromagnetic lock is difficult to open when the power is off is solved, and emergency unlocking is achieved that is safe, simple and does not affect the appearance.
Patent Information
- Application Number
- CN202422304144.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-21
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-09-21
AI Technical Summary
Existing electromagnetic locks for cabinets are difficult to open normally in the event of a power outage, and existing emergency unlocking structures affect user safety, occupy space, or have an unattractive appearance.
An electromagnetic lock power-off emergency unlocking structure is designed, which adopts a lock hook assembly and an electromagnetic lock assembly to be movably connected. Through a combination of a connecting rod and a return spring, emergency unlocking can be achieved by pressing a manual pull rod from the back panel of the cabinet.
Unlocking can be achieved conveniently, safely and simply in the event of a power outage without affecting the cabinet's appearance. The operation is reliable and the cost is low.
Smart Images
Figure CN223374223U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of door locks, and in particular relates to an electromagnetic lock power-off emergency unlocking structure and an office storage cabinet. Background Art
[0002] In the prior art, the doors of general cabinets are often equipped with electromagnetic locks for opening and closing the doors. Under normal circumstances, the electromagnetic locks are opened and closed by electrical signals. When the cabinet is in a power outage or other special situation that causes the cabinet to be powered off, the electromagnetic lock will not be able to work normally. At this time, it becomes difficult for users to open the door and get the materials inside the cabinet.
[0003] To address this situation, the prior art has designed an emergency unlocking structure for the electromagnetic lock of the cabinet to open the door. However, this method generally designs the unlocking structure on the top of the cabinet, which requires climbing operations and affects user safety; or the unlocking structure is designed in the front of the cabinet, which not only takes up space but also affects the appearance, bringing unsafe, inconvenient and unsightly experience to the user. Utility Model Content
[0004] The utility model provides a patent name to solve the above-mentioned problems.
[0005] To solve the above problems, the technical solution provided by the utility model is as follows: an electromagnetic lock power-off emergency unlocking structure, provided with a lock hook assembly and an electromagnetic lock assembly, the lock hook assembly is movably connected to the electromagnetic lock assembly; the electromagnetic lock assembly is installed on the surface of the mounting plate, and the unlocking assembly is installed near the rear end of the electromagnetic lock assembly; the unlocking assembly is provided with a base plate, a support rod, a manual pull rod and a connecting rod return spring; the base plate is fixed to the mounting plate; the middle part of the support rod is connected to the middle axis of the base plate by an axle pin; an unlocking structure is provided at one end of the support rod near the direction of the electromagnetic lock assembly, and the unlocking structure has a trigger gap with the bottom of the electromagnetic lock assembly; a hand holding assembly is provided at the other end of the support rod; the hand holding assembly includes a manual pull rod and a connecting rod return spring; one end of the connecting rod return spring is fixed to the mounting plate, and the other end of the connecting rod return spring is fixed to the top of the other end of the support rod; one end of the manual pull rod is fixed to the side of the other end of the support rod, and the other end of the manual pull rod extends outward.
[0006] A preferred technical solution: a limiting groove is set on the surface of the substrate; a positioning circular hole is opened in the middle of the support rod, a positioning shaft passes through the positioning circular hole and is fixed on the surface of the substrate, and both ends of the support rod float up and down within the movable range of the limiting groove of the substrate.
[0007] Preferred technical solution; the electromagnetic lock assembly is provided with a protective shell; the electromagnetic lock structure is installed in the protective shell; the left side of the protective shell is provided with a first through-hole and a first crack in sequence from top to bottom; a first trigger hole is provided at the bottom of the protective shell; the electromagnetic lock structure is provided with a driving structure, a lock body structure and a reset structure; the reset structure is arranged at the first through-hole; the lock body structure is arranged in the middle of the protective shell and at the first crack; the driving structure is arranged above the first trigger hole, and the unlocking structure at one end of the support rod is arranged below the first trigger hole.
[0008] Preferred technical solution; the driving structure includes an electromagnetic coil, an emergency pull rod and an emergency unlocking rod; one end of the emergency pull rod is sleeved on the output end of the electromagnetic coil; the other end of the emergency pull rod is fixed to one end of the emergency unlocking rod; the other end of the emergency unlocking rod is fixed to the lock body structure.
[0009] A preferred technical solution; the lock body structure includes a card block, an unlocking block, a card plate reset spring, a first axle pin and a second axle pin; the first axle pin passes through the card block and is fixed on the rear shell of the protective shell, and the second axle pin passes through the unlocking block and is fixed on the rear shell of the protective shell; the hook at the front end of the card block is on the same horizontal plane as the first crack, the card groove at the tail of the card block is snap-connected with the convex portion at the front end of the unlocking block, and the tail of the unlocking block is fixed to the other end of the emergency unlocking rod; one end ring of the card plate reset spring is fixed on the rear shell, the spring eye of the card plate reset spring is sleeved on the first axle pin, and the other end ring of the card plate reset spring is fixed on the surface of the hook.
[0010] A preferred technical solution; the reset structure includes a push rod reset spring and a push rod, a limit block is set at one end of the push rod, and the other end of the push rod extends to the outside of the protective shell through the first through-hole; one end ring of the push rod reset spring is fixed on the limit block, the spring eye of the push rod reset spring is sleeved on the outer surface of the push rod, and the other end ring of the push rod reset spring is spaced from the first through-hole.
[0011] Preferred technical solution; the lock hook assembly includes a lock hook and a lock hook bracket, the lock hook is fixed on the lock hook bracket, and a fixing hole is provided on the lower front side of the lock hook bracket; the lock hook and the first crack are on the same horizontal plane.
[0012] By adopting the above scheme, the utility model designs an emergency unlocking structure of the electromagnetic lock, which is installed on the inner side of the cabinet through a combination structure of a connecting rod and a return spring. By pulling the unlocking component, the emergency unlocking of the electromagnetic lock is achieved. The overall design structure of this unlocking structure is simple, reliable, convenient, and low-cost.
[0013] An office storage cabinet is provided with a cabinet body, on which the electromagnetic lock power-off emergency unlocking structure is installed; a lock hook assembly is installed on the inner surface of the cabinet door; and an electromagnetic lock assembly and an unlocking assembly are installed on an inner side wall of the cabinet.
[0014] By adopting the above solution, an extremely simple internal emergency unlocking method of the cabinet is realized with a connecting rod and a return spring. The emergency unlocking can be completed by pressing the manual pull rod downward from the operation and maintenance port on the back panel of the cabinet. The operation is convenient, simple, reliable, safe, convenient and effective. At the same time, the front appearance of the cabinet is not damaged, thus ensuring the beautiful appearance of the front of the cabinet. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the embodiments or technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0016] Figure 1 This is a schematic diagram of the overall structure of the cabinet of the utility model;
[0017] Figure 2 This is a schematic diagram of the fixing position of the lock hook assembly on the door of the utility model;
[0018] Figure 3 This is a schematic diagram of the installation position of the electromagnetic lock assembly of the utility model;
[0019] Figure 4 This is a schematic diagram of the electromagnetic lock and unlocking assembly of the utility model arranged on the side of the cabinet;
[0020] Figure 5 This is a schematic diagram of the structure of the lock hook assembly of the utility model;
[0021] Figure 6 This is a schematic diagram of the structure of the electromagnetic lock assembly of the utility model;
[0022] Figure 7 This is a schematic diagram of the substrate structure in the unlocking assembly of the present invention;
[0023] Figure 8 This is a schematic diagram of the support rod, manual pull rod and connecting rod return spring assembly in the unlocking assembly of the utility model;
[0024] Figure 9 This is a schematic diagram of the state between the electromagnetic lock and the unlocking component when the electromagnetic lock of the utility model is closed;
[0025] Figure 10 This is a schematic diagram of the state between the electromagnetic lock and the unlocking component when the electromagnetic lock of the utility model is opened;
[0026] Figure 11 This is a schematic diagram of the operation and maintenance port on the back of the cabinet of this utility model. DETAILED DESCRIPTION
[0027] To facilitate understanding of the present invention, the present invention is described in more detail below with reference to the accompanying drawings and specific embodiments. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present invention.
[0028] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "fixed," "integrally formed," "left," "right," and similar expressions used in this specification are for illustrative purposes only. In the drawings, elements with similar structures are indicated by the same reference numerals.
[0029] Unless otherwise defined, all technical and scientific terms used in this specification have the same meanings as those commonly understood by those skilled in the art in the art of the present invention. The terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention.
[0030] Example 1, as Figure 5-10 As shown: an electromagnetic lock power-off emergency unlocking structure 262, provided with a lock hook assembly 24 and an electromagnetic lock assembly 13, the lock hook assembly 24 is movably connected to the electromagnetic lock assembly 13; the electromagnetic lock assembly 13 is installed on the surface of the mounting plate, and the unlocking assembly is installed near the rear end of the electromagnetic lock assembly 13; the unlocking assembly is provided with a base plate 25, a support rod 26, a manual pull rod 263 and a connecting rod return spring 264; the base plate 25 is fixed to the mounting plate; the middle part of the support rod 26 is connected to the middle axis of the base plate 25 by an axis pin; the support rod 26 is installed near the electromagnetic lock assembly 13 One end portion 253 of 26 is provided with an unlocking structure 262, and there is a trigger gap between the unlocking structure 262 and the bottom of the electromagnetic lock assembly 13; a hand-holding assembly is provided at the other end of the support rod 26; the hand-holding assembly includes a manual pull rod 263 and a connecting rod return spring 264; one end of the connecting rod return spring 264 is fixed to the mounting plate, and the other end of the connecting rod return spring 264 is fixed to the top of the other end of the support rod 26 by a spring fixing bolt 265; one end of the manual pull rod 263 is fixed to the side of the other end of the support rod 26, and the other end of the manual pull rod 263 extends outward.
[0031] A limiting groove 252 is provided on the surface of the substrate 25; a positioning circular hole is provided in the middle of the support rod 26, and a positioning shaft 251 passes through the positioning circular hole and is fixed on the surface of the substrate 25. The two ends of the support rod 26 float up and down within the movable range of the limiting groove 252 of the substrate 25.
[0032] The electromagnetic lock assembly 13 is provided with a protective shell 27; the electromagnetic lock structure is installed in the protective shell 27; the left side of the protective shell 27 is provided with a first perforation and a first crack in sequence from top to bottom; a first trigger hole is provided at the bottom of the protective shell 27; the electromagnetic lock structure is provided with a driving structure, a lock body structure and a reset structure; the reset structure is arranged at the first perforation; the lock body structure is arranged in the middle of the protective shell 27 and at the first crack; the driving structure is arranged above the first trigger hole, and the unlocking structure 262 at one end of the support rod 26 is arranged below the first trigger hole.
[0033] The driving structure includes an electromagnetic coil 139, an emergency pull rod 138 and an emergency unlocking rod 137; one end of the emergency pull rod 138 is sleeved on the output end of the electromagnetic coil 139; the other end of the emergency pull rod 138 is fixed to one end of the emergency unlocking rod 137; the other end of the emergency unlocking rod 137 is fixed to the lock body structure.
[0034] The lock body structure includes a card block 135, an unlocking block 136, a card plate return spring 134, a first axis pin and a second axis pin; the first axis pin passes through the card block 135 and is fixed on the rear shell 11 of the protective shell 27, and the second axis pin passes through the unlocking block 136 and is fixed on the rear shell 11 of the protective shell 27; the hook at the front end of the card block 135 is on the same horizontal plane as the first crack, the card slot at the tail of the card block 135 is snap-connected with the convex portion at the front end of the unlocking block 136, and the tail of the unlocking block 136 is fixed to the other end of the emergency unlocking rod 137; one end ring of the card plate return spring 134 is fixed on the rear shell 11, the spring eye of the card plate return spring 134 is sleeved on the first axis pin, and the other end ring of the card plate return spring 134 is fixed on the surface of the hook.
[0035] The lock hook and the first crack are on the same horizontal plane; this ensures that the lock hook can pass through the first crack into the hook portion at the front end of the block 135 in the electromagnetic lock assembly 13, so that the lock hook cooperates with the electromagnetic lock to complete the function of the lock.
[0036] The reset structure includes a push rod reset spring 132 and a push rod 133. A limit block is set at one end of the push rod 133, and the other end of the push rod 133 extends to the outside of the protective shell 27 through the first through-hole; one end ring of the push rod reset spring 132 is fixed on the limit block, and the spring eye of the push rod reset spring 132 is sleeved on the outer surface of the push rod 133, and the other end ring of the push rod reset spring 132 is spaced apart from the first through-hole.
[0037] The locking hook assembly 24 includes a locking hook 241 and a locking hook bracket 242 . The locking hook 241 is fixed on the locking hook bracket 242 . A fixing hole 243 is provided on the lower front side of the locking hook bracket 242 . The locking hook 241 is on the same horizontal plane as the first crack.
[0038] According to the above structural features and positional relationships, the cooperation between the electromagnetic lock assembly 13, the lock hook assembly 24 and the unlocking assembly in the electromagnetic lock power-off emergency unlocking structure is now specifically described;
[0039] The coordination relationship is divided into two situations: the first situation: when the power is on, the electromagnetic lock power-off emergency unlocking structure works; the second situation: when the power is off, the electromagnetic lock power-off emergency unlocking structure works.
[0040] The first type: When power is turned on, the coordination relationship between the electromagnetic lock assembly 13, the lock hook assembly 24 and the unlocking assembly is:
[0041] The lock hook in the lock hook assembly 24 is inserted into the hook portion of the clamping block 135 in the electromagnetic lock assembly 13 through the first slit. Due to the tension of the clamping plate return spring 134, the hook portion of the clamping block 135 always clamps the lock hook, thereby fixing the lock hook assembly 24.
[0042] When unlocking is required, the electromagnetic coil 139 is energized to generate magnetic force, which will pull the emergency pull rod 138 upward. The emergency pull rod 138 pulls one end of the emergency unlocking rod 137 upward, so that the tail of the unlocking block 136 also moves upward, and the corresponding front end of the unlocking block 136 tilts downward (because the unlocking block 136 is fixed to the rear shell 11 of the protective shell 27 by the second axle pin, and the two are axially connected, so that the tail of the unlocking block 136 is upward, and the corresponding front end of the unlocking block 136 tilts downward). In this way, the engagement state of the card slot at the tail of the card block 135 and the convex portion at the front end of the unlocking block 136 becomes disengaged. At this time, the card plate reset spring 134 pulls the card block 135, causing the hook portion of the card block 135 to tilt upward, so that the hook portion of the card block 135 is disengaged from the lock hook, thereby separating the lock hook assembly 24 from the electromagnetic lock assembly 13.
[0043] The second is the coordination relationship between the electromagnetic lock assembly 13, the lock hook assembly 24 and the unlocking assembly in the power-off state:
[0044] In the initial state and the power-on state, the matching relationship between the electromagnetic lock assembly 13, the lock hook assembly 24 and the unlocking assembly is the same;
[0045] When unlocking is required: pull the manual pull rod to move the rear end of the support rod 26 downward, and the corresponding front end of the support rod 26 moves upward (the axle pin connects the middle part of the support rod 26 with the middle axis of the base plate 25 to form a seesaw shape), and the unlocking structure (unlocking edge) at one end (front end) of the support rod 26 pushes up one end of the emergency unlocking rod 137 in the driving structure, so that the tail of the unlocking block 136 is upward, and the corresponding front end of the unlocking block 136 is tilted downward), so that the engagement state of the slot at the tail of the card block 135 and the convex part at the front end of the unlocking block 136 becomes disengaged. At this time, the card plate reset spring 134 pulls the card block 135, so that the hook portion of the card block 135 tilts upward, so that the hook portion of the card block 135 is disengaged from the lock hook, thereby separating the lock hook assembly 24 from the electromagnetic lock assembly 13.
[0046] Through the above two methods, the lock hook assembly 24 can be separated from the electromagnetic lock assembly 13 when the power is on or off.
[0047] Example 2: Figure 1-4 As shown, an office storage cabinet includes a cabinet body 1, a door 2, and universal casters 3. The door 2 is provided with a door handle 21, a tempered glass 22, and a display assembly 23. The door is mounted on the cabinet body, and the door handle is mounted on the outer surface of the door; the tempered glass is fixed on the outer surface of the door; and a corresponding number of universal casters are mounted on the bottom of the cabinet body.
[0048] Furthermore, the display screen assembly 23 is composed of a card reader 231, a face camera 232, a display screen 233, etc.
[0049] A lock hook assembly is installed on the inner surface of the door, and a solenoid valve assembly and an unlocking assembly are installed on one inner side of the cabinet body; the lock hook assembly cooperates with the solenoid valve assembly, and the lock hook is inserted into the protective shell through the first crack and extends to the hook portion at the front end of the clamping block, thereby locking the door and the cabinet body;
[0050] When the power is on or off, the lock hook is disengaged from the hook portion of the front section of the card block, so that the door is opened on the cabinet body (how to disengage the lock hook from the hook portion of the front section of the card block has been explained above);
[0051] Furthermore, a fixing hole 243 is provided on the front lower portion of the lock hook bracket 242 in the lock hook assembly 24; wherein the fixing hole 243 forms a locking fit with the fixing hole on the door 2 and is fixed by screws.
[0052] Furthermore, when the cabinet 1 is further provided with a cargo channel box 11 and a shelf 12, Figure 3 Display: The electromagnetic lock assembly 13 is arranged and installed on the left side of the cabinet 1.
[0053] Furthermore, the emergency unlocking can be completed by opening the operation and maintenance port on the back panel of the cabinet and pressing the manual pull rod 263 downwards. The operation is convenient, simple and reliable.
[0054] It should be noted that the above-mentioned technical features are further combined with each other to form various embodiments not listed above, which are all deemed to be within the scope of the description of the present utility model; and, for ordinary technicians in this field, they can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the present utility model.
Claims
1. An electromagnetic lock power failure emergency unlocking structure, comprising a lock hook assembly and an electromagnetic lock assembly, wherein the lock hook assembly is movably connected to the electromagnetic lock assembly; characterized in that; The electromagnetic lock assembly is installed on the surface of the mounting plate, and an unlocking assembly is installed near the rear end of the electromagnetic lock assembly; the unlocking assembly is provided with a base plate, a support rod, a manual pull rod and a connecting rod return spring; the base plate is fixed to the mounting plate; the middle part of the support rod is connected to the middle axis of the base plate by an axle pin; an unlocking structure is provided at one end of the support rod near the electromagnetic lock assembly, and a trigger gap is formed between the unlocking structure and the bottom of the electromagnetic lock assembly; a hand holding assembly is provided at the other end of the support rod; the hand holding assembly includes a manual pull rod and a connecting rod return spring; one end of the connecting rod return spring is fixed to the mounting plate, and the other end of the connecting rod return spring is fixed to the top of the other end of the support rod; one end of the manual pull rod is fixed to the side of the other end of the support rod, and the other end of the manual pull rod extends outward.
2. The electromagnetic lock power-off emergency unlocking structure according to claim 1, characterized in that: A limiting groove is set on the surface of the substrate; a positioning circular hole is opened in the middle of the support rod, a positioning shaft passes through the positioning circular hole and is fixed on the surface of the substrate, and both ends of the support rod float up and down within the movable range of the limiting groove of the substrate; the unlocking structure is an unlocking edge.
3. The electromagnetic lock power-off emergency unlocking structure according to claim 2, characterized in that: The electromagnetic lock assembly is provided with a protective shell; the electromagnetic lock structure is installed in the protective shell; the left side of the protective shell is provided with a first through-hole and a first crack in sequence from top to bottom; a first trigger hole is provided at the bottom of the protective shell; the electromagnetic lock structure is provided with a driving structure, a lock body structure and a reset structure; the reset structure is arranged at the first through-hole; the lock body structure is arranged in the middle of the protective shell and at the first crack; the driving structure is arranged above the first trigger hole, and the unlocking structure at one end of the support rod is arranged below the first trigger hole.
4. The electromagnetic lock power-off emergency unlocking structure according to claim 3, characterized in that: The driving structure includes an electromagnetic coil, an emergency pull rod and an emergency unlocking rod; one end of the emergency pull rod is sleeved on the output end of the electromagnetic coil; the other end of the emergency pull rod is fixed to one end of the emergency unlocking rod; the other end of the emergency unlocking rod is fixed to the lock body structure.
5. The electromagnetic lock power-off emergency unlocking structure according to claim 4, characterized in that: The lock body structure includes a card block, an unlocking block, a card plate reset spring, a first shaft pin and a second shaft pin; the first shaft pin passes through the card block and is fixed to the rear shell of the protective shell, and the second shaft pin passes through the unlocking block and is fixed to the rear shell of the protective shell; the hook at the front end of the card block is on the same horizontal plane as the first crack, the card slot at the tail of the card block is snap-connected with the convex portion at the front end of the unlocking block, and the tail of the unlocking block is fixed to the other end of the emergency unlocking rod; one end ring of the card plate reset spring is fixed to the rear shell, the spring eye of the card plate reset spring is sleeved on the first shaft pin, and the other end ring of the card plate reset spring is fixed on the surface of the hook.
6. The electromagnetic lock power-off emergency unlocking structure according to claim 5, characterized in that: The reset structure includes a push rod reset spring and a push rod, a limit block is set at one end of the push rod, and the other end of the push rod extends to the outside of the protective shell through the first through-hole; one end ring of the push rod reset spring is fixed on the limit block, the spring eye of the push rod reset spring is sleeved on the outer surface of the push rod, and the other end ring of the push rod reset spring is spaced apart from the first through-hole.
7. The electromagnetic lock power-off emergency unlocking structure according to claim 1, characterized in that: The locking hook assembly comprises a locking hook and a locking hook bracket, the locking hook is fixed on the locking hook bracket, and a fixing hole is provided on the lower front side of the locking hook bracket; the locking hook and the first crack are on the same horizontal plane.
8. An office locker, characterized in that; A cabinet is provided, on which an electromagnetic lock power-off emergency unlocking structure according to any one of claims 1 to 7 is installed.
9. An office locker according to claim 8, characterized in that: A lock hook assembly is installed on the inner surface of the door of the cabinet; and an electromagnetic lock assembly and an unlocking assembly are installed in sequence on an inner side wall of the cabinet.