Electromagnetic control type self-suction door lock emergency interruption device

Abstract

The utility model relates to the technical field of self-suction door lock emergency interruption devices, in particular to an electromagnetic control type self-suction door lock emergency interruption device. According to the technical scheme, the emergency switch comprises a machine shell, an electromagnet fixedly installed in the machine shell, an armature attracted to the electromagnet, an emergency button for manually powering off the electromagnet, a reset spring for driving the emergency button to reset under the action of elastic force, and a slow return assembly installed in the machine shell. The slow return assembly ensures that the reset spring rapidly contracts and reduces the elastic force release speed of the reset spring. Manual reset is not needed, the door plate which is not completely pulled open by a distance can be effectively prevented from being adsorbed again, the problem that the door cannot be effectively opened is avoided, and the risk of clamping injury is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to self-suction door lock emergency interrupter technical field especially relates to electromagnetic control formula self-suction door lock emergency interrupter. BACKGROUND

[0002] The electromagnetic control formula self-suction door lock emergency interrupter is a door lock system that combines electromagnetic control technology and safety emergency function, and is mainly used for quickly releasing the self-suction function of the door lock in an emergency to ensure personnel safety evacuation. The device is basically composed of an electromagnetic control module and an emergency interrupter, and the attraction and release of the door lock are controlled by an electromagnetic coil or an electromagnet. Under normal conditions, the door lock is automatically attracted (such as fireproof doors, burglarproof doors, etc.) after being powered to generate a magnetic force. The triggering mode of the emergency interrupter is manual or automatic, such as an emergency button or automatic (linked with fire alarm and smoke sensor). The power supply of the electromagnetic control module is cut off or a signal is sent to forcibly release the magnetic force, so that the door lock enters a "free state" and the door can be manually pushed open.

[0003] After the magnetic field is manually released, the device without an automatic reset mechanism needs to be manually reset to resume normal operation. The device with an automatic reset mechanism does not need to be manually reset, but the reset mechanism generally uses a spring. When the emergency button is released, the spring force is instantaneously released, that is, the magnetic force is instantaneously restored, and then the door panel that has not been completely pulled apart is again attracted, which cannot effectively open the door and has the risk of pinching. UTILITY MODEL CONTENTS

[0004] The utility model aims at the problems in the background art and provides an electromagnetic control formula self-suction door lock emergency interrupter.

[0005] The technical scheme of the utility model is an electromagnetic control formula self-suction door lock emergency interrupter, which comprises a casing, an electromagnet fixedly installed inside the casing, and an armature attracted to the electromagnet, and further comprises:

[0006] An emergency button for manually powering off the electromagnet;

[0007] A reset spring that drives the emergency button to reset under the action of the spring force;

[0008] A slow return assembly installed inside the casing, which ensures that the reset spring quickly contracts and reduces the speed of release of the reset spring force.

[0009] Optionally, the emergency button comprises a pressing rod slidingly installed in the casing, a connecting disc is fixedly installed on the pressing rod, the reset spring is located between the connecting disc and the casing, a conical block is fixedly installed on the connecting disc, and anti-loosening assemblies are installed on both sides of the casing.

[0010] Optionally, the anti-loosening component includes a telescopic rod fixedly installed inside the housing, an insulating pad fixedly installed on the telescopic rod, a tension spring fixedly installed between the insulating pad and the housing, a metal contact fixedly installed at the other end of the telescopic rod, and a conical block located between the two metal contacts.

[0011] Optionally, the electromagnet is connected to an external power source, and a first wire is fixedly installed on the metal contact. One of the first wires is electrically connected to the positive terminal of the power source, and the other first wire is electrically connected to the positive terminal of the electromagnet. The negative terminal of the electromagnet and the negative terminal of the power source are electrically connected through a second wire.

[0012] Optionally, the soft-return assembly includes a support rod fixedly installed on the connecting plate, a first connecting cylinder fixedly installed inside the housing, a first sealing sheet slidably installed inside the first connecting cylinder, the first sealing sheet being fixedly connected to the support rod, a second connecting cylinder fixedly installed inside the housing, a second sealing sheet slidably installed inside the second connecting cylinder, and connectors fixedly installed at both the upper and lower ends of the first and second connecting cylinders, with adjacent connectors connected by a pipe structure.

[0013] Optionally, the pipeline structure includes a thick pipe and a thin pipe fixedly installed between two adjacent connectors. The inner diameter of the thick pipe is larger than that of the thin pipe. A first check valve is fixedly installed on the thick pipe, and a second check valve is fixedly installed on the thin pipe.

[0014] Optionally, the first connecting cylinder, the second connecting cylinder, the thick pipe, the thin pipe, the first check valve, and the second check valve are all filled with a transmission medium.

[0015] In summary, this application includes at least one of the following beneficial technical effects:

[0016] This invention uses a slow-return component to allow the pressure bar to rise quickly and descend slowly, eliminating the need for manual reset. It also effectively prevents the door panel, which has not been fully pulled apart, from being sucked back in, thus avoiding the problem of the door being unable to open effectively and preventing the risk of pinching injuries. Attached Figure Description

[0017] Figure 1 A schematic diagram of the emergency interruption device for a self-closing door lock;

[0018] Figure 2 This is a schematic diagram of the emergency stop button.

[0019] Figure 3 Schematic diagram of the soft-return component Figure 1 ;

[0020] Figure 4 Schematic diagram of the soft-return componentFigure 2 .

[0021] Reference numerals: 1. Housing; 101. Electromagnet; 102. Armature; 103. Mounting base; 2. Pressure rod; 201. Protective shell; 202. Connecting plate; 203. Return spring; 204. Conical block; 205. Telescopic rod; 206. Insulating pad; 207. Tension spring; 208. Metal contact; 3. Soft return assembly; 301. Support rod; 302. First connecting cylinder; 303. First sealing plate; 304. Second connecting cylinder; 305. Second sealing plate; 306. Connector; 307. Thick pipe; 308. Thin pipe; 309. First one-way valve; 310. Second one-way valve; 4. Power supply; 401. First wire; 402. Second wire. Detailed Implementation

[0022] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] like Figure 1 , Figure 2 As shown, the electromagnetically controlled self-closing door lock emergency interruption device proposed in this utility model includes a housing 1, an electromagnet 101 fixedly installed inside the housing 1, an armature 102 attracted to the electromagnet 101, an emergency button for manually cutting off the power to the electromagnet 101, and a reset spring 203. The reset spring 203 drives the emergency button to reset under the action of its elastic force. The magnetic field generated by the electromagnet 101 can be manually eliminated by pressing the emergency button, so that the door lock is in a free state and the door panel can be opened and closed freely. When the pressing pressure is removed, the emergency button can be reset under the action of the reset spring 203, so that the electromagnet 101 generates a magnetic field again.

[0024] Furthermore, the emergency stop button includes a lever 2 slidably mounted inside the housing 1, a connecting plate 202 fixedly mounted on the lever 2, a return spring 203 located between the connecting plate 202 and the housing 1, a conical block 204 fixedly mounted on the connecting plate 202, and anti-loosening components installed on both sides of the housing 1. Each anti-loosening component includes a telescopic rod 205 fixedly mounted inside the housing 1, an insulating pad 206 fixedly mounted on the telescopic rod 205, and a tension spring 207 fixedly mounted between the insulating pad 206 and the housing 1. A metal contact 208 is fixedly installed at the other end of the retracting rod 205. The conical block 204 is located between the two metal contacts 208. By pulling the pressure rod 2 upward, the conical block 204 moves upward. At this time, the conical block 204 will not contact the metal contacts 208. When the tension applied to the pressure rod 2 is released, the return spring 203 will enter the two metal contacts 208, and under the action of the tension spring 207, the metal contacts 208 will make a stable contact with the conical block 204.

[0025] It should be noted that the electromagnet 101 is connected to an external power supply 4, and a first wire 401 is fixedly installed on the metal contact 208. One of the first wires 401 is electrically connected to the positive terminal of the power supply 4, and the other first wire 401 is electrically fused to the positive terminal of the electromagnet 101. The negative terminal of the electromagnet 101 and the negative terminal of the power supply 4 are electrically connected through a second wire 402. When the cone block 204 contacts the metal contact 208, the circuit of the electromagnet 101 is connected and a magnetic field is generated. When the cone block 204 separates from the metal contact 208, the electromagnet is disconnected, thereby eliminating the magnetic field.

[0026] like Figure 3 , Figure 4 As shown, this embodiment also includes a soft-return assembly 3 installed inside the housing 1. The soft-return assembly 3 ensures that the reset spring 203 contracts quickly and reduces the speed at which the spring force of the reset spring 203 is released. The soft-return assembly 3 includes a support rod 301 fixedly installed on the connecting plate 202. A first connecting cylinder 302 is fixedly installed inside the housing 1. A first sealing plate 303 is slidably installed inside the first connecting cylinder 302. The first sealing plate 303 is fixedly connected to the support rod 301. A second connecting cylinder 304 is fixedly installed inside the housing 1. A second sealing plate 305 is slidably installed inside the second connecting cylinder 304. Connectors 306 are fixedly installed at both the upper and lower ends of the first connecting cylinder 302 and the second connecting cylinder 304. Two adjacent connectors 306 are connected by a pipe structure, which connects the two ends of the first connecting cylinder 302 and the second connecting cylinder 304.

[0027] Furthermore, the pipeline structure includes a thicker pipe 307 and a thinner pipe 308 fixedly installed between two adjacent connectors 306. The inner diameter of the thicker pipe 307 is larger than that of the thinner pipe 308. A first check valve 309 is fixedly installed on the thicker pipe 307, and a second check valve 310 is fixedly installed on the thinner pipe 308. It is worth noting that the first connecting sleeve 302, the second connecting sleeve 304, the thicker pipe 307, the thinner pipe 308, the first check valve 309, and the second check valve 310 are all filled with a transmission medium, which is a liquid that cannot be compressed under working conditions. When the pressure rod 2 rises, it will drive the connecting plate 202 to rise, which in turn will cause the support rod 301 to drive the first sealing plate 303 to rise. This will cause the transmission medium inside the first connecting cylinder 302 and the second connecting cylinder 304 to flow in a counterclockwise direction through the thick pipe 307 and the first one-way valve 309. Conversely, when the return spring 203 resets the pressure rod 2, the transmission medium inside the first connecting cylinder 302 and the second connecting cylinder 304 will flow in a clockwise direction through the thin pipe 308 and the second one-way valve 310.

[0028] It should be noted that the larger cross-sectional area of ​​the thicker pipe 307 allows more liquid to pass through simultaneously. Even at the same flow rate (e.g., when static pressure maintains a constant flow rate), the volume flowing out of the thicker pipe per unit time is still larger, resulting in more mass. This allows the pressure rod 2 to rise rapidly and descend slowly.

[0029] In this embodiment, when the conical block 204 contacts the metal contact 208, the electromagnet 101 circuit is connected and a magnetic field is generated. When the conical block 204 separates from the metal contact 208, the electromagnet is disconnected, thereby eliminating the magnetic field.

[0030] When the pressure rod 2 rises, it will drive the connecting plate 202 to rise, which in turn will cause the support rod 301 to drive the first sealing plate 303 to rise. This will cause the transmission medium inside the first connecting cylinder 302 and the second connecting cylinder 304 to flow counterclockwise through the thick pipe 307 and the first one-way valve 309. Conversely, when the return spring 203 resets the pressure rod 2, the transmission medium inside the first connecting cylinder 302 and the second connecting cylinder 304 will flow clockwise through the thin pipe 308 and the second one-way valve 310. Because the cross-sectional area of ​​the thick pipe 307 is larger, more liquid can pass through at the same time. Even if the flow rate is the same (e.g., the static pressure maintains a constant flow rate), the volume flowing out of the thick pipe per unit time is still larger, resulting in more mass. Therefore, the pressure rod 2 can rise quickly and fall slowly.

[0031] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. An electromagnetically controlled self-closing door lock emergency interruption device, comprising a housing (1), an electromagnet (101) fixedly installed inside the housing (1), and an armature (102) attracted to the electromagnet (101), characterized in that, Also includes: An emergency button for manually cutting off the power to the electromagnet (101); A reset spring (203) is provided, which, under the action of elastic force, drives the emergency button to reset. The soft return assembly (3) installed inside the housing (1) ensures that the return spring (203) contracts quickly and reduces the speed at which the spring force of the return spring (203) is released.

2. The electromagnetically controlled self-closing door lock emergency interruption device according to claim 1, characterized in that, The emergency button includes a pressure rod (2) that is slidably installed inside the housing (1). A connecting plate (202) is fixedly installed on the pressure rod (2). The reset spring (203) is located between the connecting plate (202) and the housing (1). A conical block (204) is fixedly installed on the connecting plate (202). Anti-loosening components are installed on both sides of the housing (1).

3. The electromagnetically controlled self-closing door lock emergency interruption device according to claim 2, characterized in that, The anti-loosening component includes a telescopic rod (205) fixedly installed inside the housing (1), an insulating pad (206) fixedly installed on the telescopic rod (205), a tension spring (207) fixedly installed between the insulating pad (206) and the housing (1), a metal contact (208) fixedly installed at the other end of the telescopic rod (205), and a conical block (204) located between the two metal contacts (208).

4. The electromagnetically controlled self-closing door lock emergency interruption device according to claim 3, characterized in that, The electromagnet (101) is connected to an external power supply (4). A first wire (401) is fixedly installed on the metal contact (208). One of the first wires (401) is electrically connected to the positive terminal of the power supply (4), and the other first wire (401) is electrically connected to the positive terminal of the electromagnet (101). The negative terminal of the electromagnet (101) and the negative terminal of the power supply (4) are electrically connected by a second wire (402).

5. The electromagnetically controlled self-closing door lock emergency interruption device according to claim 4, characterized in that, The soft-return assembly (3) includes a support rod (301) fixedly installed on the connecting plate (202), a first connecting cylinder (302) fixedly installed inside the housing (1), a first sealing plate (303) slidably installed inside the first connecting cylinder (302), the first sealing plate (303) being fixedly connected to the support rod (301), a second connecting cylinder (304) fixedly installed inside the housing (1), a second sealing plate (305) slidably installed inside the second connecting cylinder (304), and connectors (306) fixedly installed at both the upper and lower ends of the first connecting cylinder (302) and the second connecting cylinder (304), with adjacent connectors (306) connected by a pipe structure.

6. The electromagnetically controlled self-closing door lock emergency interruption device according to claim 5, characterized in that, The pipeline structure includes a thick pipe (307) and a thin pipe (308) fixedly installed between two adjacent connectors (306). The inner diameter of the thick pipe (307) is larger than that of the thin pipe (308). A first check valve (309) is fixedly installed on the thick pipe (307), and a second check valve (310) is fixedly installed on the thin pipe (308).

7. The electromagnetically controlled self-closing door lock emergency interruption device according to claim 6, characterized in that, The first connecting cylinder (302), the second connecting cylinder (304), the thick pipe (307), the thin pipe (308), the first check valve (309), and the second check valve (310) are all filled with transmission medium.

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