Driver for fire extinguishing in kitchen and fire extinguishing device

Abstract

The utility model provides a kitchen fire extinguishing driver and fire extinguishing device, including traction wire, driver, drive switch and a plurality of fuse link, driver includes fixed mount, drive piece and at least two trigger piece, each trigger piece is rotatablely and independently arranged on the fixed mount, each trigger piece is connected with one traction branch, and the traction branch is connected with the drive switch. A trigger head is arranged on the side, corresponding to the driving piece, of the trigger piece. The middle part of the driving sheet is rotatably arranged on the fixing frame, one end of the driving sheet is connected with the driving switch, and the other end of the driving sheet corresponds to the trigger head; a driver is modified into a plurality of trigger pieces, each trigger piece is connected with a traction branch, and all cooking benches corresponding to all fuse links are divided into a plurality of branches, so that the layout of corners can be avoided, the probability that a steel wire rope delays reaction or does not react after the fuse links are fused is reduced, and the service life of the cooking benches is prolonged. And the safety of the fire extinguishing device is improved.

Description

Technical Field

[0001] This utility model relates to the field of kitchen fire extinguishing technology, and in particular to a driver and extinguishing device for kitchen fire extinguishing. Background Technology

[0002] Most fires around us are caused by kitchen fires, especially in restaurants, hotels, and other places with multiple stoves. Once a fire occurs in a kitchen kitchen, the losses are particularly severe. Therefore, kitchens have always been a key area of ​​fire safety concern both domestically and internationally. Currently, the fire extinguishing devices used in the kitchen fire suppression system are mechanical actuators. These use a steel wire rope to pull a fuse on a temperature sensor, which then changes direction via pulleys. This wire rope connects to a mechanical actuator to transmit a fire signal, which in turn drives the fire suppression device. In operation, a single steel wire rope typically connects multiple temperature sensors on various stoves, with pulleys at corners to change direction, and multiple corners are designed for operation, all working in conjunction with a single actuator. Because grease and fumes from the stoves adhere to the steel wire rope and pulleys, over time, the friction between the rope and pulleys increases. Especially when multiple stoves are connected, if the fuse on one stove melts, the steel wire rope may become delayed or unresponsive due to lack of maintenance, preventing the actuator from driving the fire suppression device and causing a fire.

[0003] Therefore, there is an urgent need for a fire extinguishing device that can be individually towed and driven. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a fire extinguishing actuator and extinguishing device for kitchens. By modifying the actuator into multiple trigger plates, each trigger plate is connected to a traction branch. By dividing all the fuse plates into multiple branches corresponding to all the stoves, corner layouts can be avoided, thereby reducing the probability of delayed or non-reaction of the steel wire rope after the fuse plates melt, and improving the safety of the fire extinguishing device.

[0005] Specifically, this utility model provides a fire extinguishing device for kitchens, including a traction wire, a driver, a drive switch, and several fuses. The driver includes a fixed frame, a drive piece, and at least two trigger pieces. Each trigger piece is rotatably and independently mounted on the fixed frame, and each trigger piece is connected to a traction branch. A trigger head is provided on the side of the trigger piece corresponding to the drive piece. The middle part of the drive piece is rotatably mounted on the fixed frame, and one end of it is connected to the drive switch, while the other end corresponds to the trigger head.

[0006] In a further optimization of the technical solution of this utility model, the trigger plate is hinged or axially connected to the drive plate, and a torsion spring is provided at the connection between the trigger plate and the drive plate. The torsion spring is used to trigger the drive plate when there is no traction wire.

[0007] In a further optimization of the technical solution of this utility model, one end of the trigger piece is connected to the drive piece, and the other end is connected to the traction wire, and a cylindrical metal trigger head is provided on the side of the trigger piece corresponding to the drive piece.

[0008] In a further optimization of the technical solution of this utility model, the traction wire passes through the trigger plate and connects to the trigger head.

[0009] A further optimization of the technical solution of this utility model includes a pulling mechanism for assisting the trigger plate in triggering. The pulling mechanism is disposed on the fixed frame and its working end is connected to the trigger plate.

[0010] In a further optimization of the technical solution of this utility model, the pulling mechanism is a steel wire rope or a pulling spring, one end of which is set on the fixed frame and the other end is connected to the trigger plate.

[0011] A further optimization of the technical solution of this utility model is that a fixing hole for connecting the traction mechanism is provided on one side of the trigger plate.

[0012] In a further optimization of the technical solution of this utility model, the end of the trigger plate with the trigger head is inclined toward the driving plate, and the inclination angle is 8-15 degrees. Attached Figure Description

[0013] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the driver structure in the technical solution of this utility model;

[0015] Figure 2 This is a front structural diagram of the trigger piece in the technical solution of this utility model;

[0016] Figure 3 yes Figure 2 The left view;

[0017] Figure 4 yes Figure 2 The right view.

[0018] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not drawn to scale.

[0019] Label Explanation:

[0020] 1-Drive plate; 2-Trigger plate; 21-Trigger head; 22-Fixing hole; 3-Hinge shaft. Detailed Implementation

[0021] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] The terminology used in the embodiments of this utility model is for the purpose of describing particular embodiments only and is not intended to limit the utility model. The singular forms “a,” “said,” and “the” used in the embodiments of this utility model and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise; “multiple” generally includes at least two, but does not exclude the inclusion of at least one.

[0023] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system including said element. In the description of this utility model, it should be understood that the terms "upper," "lower," "bottom," "top," "front," "rear," "inner," "outer," "left," "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] The following will be combined with the appendix Figure 1-4 The present invention will be further described below.

[0025] This technical solution improves upon existing kitchen fire extinguishing devices, enhancing their sensitivity and reducing the probability of failure to trigger the device after a fire. Specifically, it includes a fire extinguishing device and a fire extinguishing control mechanism. Upon the occurrence of a fire, the fire extinguishing control mechanism activates the fire extinguishing device. The fire extinguishing control mechanism includes a traction wire, a driver, a drive switch, and several fuses. Each fuse corresponds to a stovetop and is positioned above it. The fuses are connected to the driver via the traction wire. In high-temperature environments, the fuses melt, causing the traction wire to lose its pulling force on the driver, thus triggering the driver to activate the drive switch and open the fire extinguishing device. In existing technology, typically one driver fuse (1) corresponds to one trigger fuse (2), and the traction wire connects all fuses in series. When a fire occurs at a remote location, causing a fuse to melt, the traction wire may react slowly, or the friction may increase due to oil fumes adhering to the traction wire and the guide pulley, leading to failure to trigger. Figure 1 As shown, the actuator of this technical solution includes a fixed frame, a drive plate 1, and at least two trigger plates 2. Each trigger plate 2 is rotatably and independently mounted on the fixed frame, ensuring that each trigger plate 2 can independently trigger the drive plate 1. Each trigger plate 2 is connected to a traction branch. By setting multiple trigger plates, the layout of turning or corners can be avoided as much as possible on each branch, reducing the use of steering pulleys and ensuring the timeliness of traction wire feedback. It can also reduce the problem of untimely feedback caused by oil stains adhering to the traction wire and steering pulley after long-term use. At the same time, setting multiple trigger plates 2 in conjunction with multiple traction wires can shorten the triggering distance between each fuse on the stove and the fire extinguishing device, improve the response speed, and reduce the probability of the fire extinguishing device failing to trigger. The working principle of this technical solution is as follows: a trigger head 21 is provided on the side of the trigger piece 2 corresponding to the drive piece 1; the middle part of the drive piece 1 is rotatably mounted on the fixed frame, and one end of it is connected to the drive switch, and the other end is corresponding to the trigger head 21. When the traction wire loses its traction force, the trigger head 21 will trigger the drive piece 1 under the action of gravity or external force, causing the drive piece 1 to disengage from the drive switch, thereby activating the fire extinguishing device through the drive switch to achieve the purpose of timely fire extinguishing.

[0026] In this technical solution, the trigger piece 2 and the drive piece 1 are respectively hinged or axially connected to the fixed frame, preferably connected to the fixed frame through the hinge shaft 3. A torsion spring is provided at the hinge point or connecting shaft between the trigger piece 2 and the fixed frame. The torsion spring is used to trigger the drive piece 1 when there is no traction wire. That is, the torsion spring gives the trigger piece 2 a force opposite to that of the traction wire, so that the trigger piece 2 moves towards the drive piece 1 without the action of the traction wire, so that the trigger head 21 pushes the drive piece 1 to rotate, and the drive piece 1 starts the drive switch.

[0027] In another embodiment, one end of the trigger plate 2 is connected to the fixing frame, and the trigger plate 2 is coaxially connected to the drive plate 1. The other end of the trigger plate 2 is connected to the traction wire. A cylindrical metal trigger head 21 is provided on the side of the trigger plate 2 corresponding to the drive plate 1. The metal trigger head 21 is a solid cylindrical metal block, which can be an iron block or a copper block. Preferably, the metal trigger head 21 is fixed to the trigger plate 2 by screws, and the traction wire passes through the screw fixing hole 22 on the trigger plate 2 and connects to the trigger head 21. This facilitates the installation of the traction wire and ensures that the traction wire will not slip during use.

[0028] Based on the above embodiments, a pulling mechanism is also included to assist the trigger piece 2 in triggering. The pulling mechanism is mounted on the fixed frame, and its working end is connected to the trigger piece 2. For example... Figure 3 and Figure 4 As shown, a fixing hole 22 for connecting the pulling mechanism is provided on one side of the trigger piece 2. Specifically, the fixing hole 22 is provided on the outer side of the trigger piece 2, in a part that does not overlap with the drive piece 1. This is to facilitate the connection of the pulling mechanism from one side of the drive piece 1 to the trigger piece 2, and to facilitate the opening of the fixing hole 22. The fixing hole 22 is set on the side plate perpendicular to the trigger piece 2. The staggered arrangement can prevent the side plate from touching the drive piece 1 during triggering or installation. When there are more than two trigger pieces 2, the fixing hole 22 can be provided at the end of the trigger piece 2 in the middle position away from the hinge axis (i.e., at the far end of the position where the trigger head 21 is set). The pulling mechanism is a steel wire rope or a tension spring, one end of which is mounted on the fixed frame, and the other end is connected to the fixing hole 22 on the trigger plate 2. The specific installation method is as follows: first, the traction wire is fixed to the trigger plate 2; then, one end of the steel wire rope or tension spring is connected to the fixing hole 22 of the trigger plate 2, and after tightening, the other end is fixed to the fixed frame. A preferred fixing method is the linkage fixing method. The linkage structure includes a support column and a rotating linkage. The connecting end of the rotating linkage and the support column is hinged. The support column is welded to the fixed frame, and the other end of the steel wire rope or tension spring is fixed to the middle of the rotating linkage. Initially, the rotating linkage is located on the side of the support column closer to the trigger plate 2. After the steel wire rope or tension spring is fixed to the trigger plate 2, the rotating linkage rotates around the support column to tighten the steel wire rope or tension spring. When tightened, the rotating linkage is located on the side of the support column away from the trigger plate 2, which facilitates the tensioning and fixing of the pulling mechanism.

[0029] Preferably, in order to increase the tactile effect between the trigger piece 2 and the drive piece 1, one end of the trigger piece 2 with the trigger head 21 is inclined toward the drive piece 1 at an angle of 8-15 degrees. In this way, after the traction wire breaks, the trigger head 21 can contact the drive piece 1 more quickly. Moreover, the setting of the tilt angle can increase the force at the trigger point. Because the cylindrical trigger head 21 makes point contact with the drive piece 1, it is easier for the drive piece 1 to start the drive switch.

[0030] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0031] Although the present invention has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A fire extinguishing actuator for kitchens, characterized in that, It includes a fixed frame, a drive plate, and at least two trigger plates. Each trigger plate is rotatably and independently mounted on the fixed frame, and each trigger plate is connected to a traction branch. A trigger head is provided on the side of the trigger plate corresponding to the drive plate. The middle part of the drive plate is rotatably mounted on the fixed frame, and one end of the drive plate is connected to a drive switch, while the other end corresponds to the trigger head.

2. The kitchen fire extinguishing actuator according to claim 1, characterized in that, The trigger plate is hinged or axially connected to the fixed frame, and a torsion spring is provided at the connection between the trigger plate and the fixed frame. The torsion spring is used to trigger the drive plate when there is no traction wire.

3. The kitchen fire extinguishing actuator according to claim 1, characterized in that, One end of the trigger plate is connected to the fixing frame, and the other end is connected to the traction wire. A cylindrical metal trigger head is provided on the side of the trigger plate corresponding to the drive plate.

4. A fire extinguishing device, comprising a traction wire, a drive switch, and a plurality of fuses, characterized in that, It also includes a kitchen fire extinguishing actuator as described in any one of claims 1-3, wherein the traction wire passes through the trigger plate and is connected to the trigger head.

5. The fire extinguishing device according to claim 4, characterized in that, It also includes a pulling mechanism to assist the trigger plate in triggering, the pulling mechanism being mounted on the fixed frame and its working end being connected to the trigger plate.

6. The fire extinguishing device according to claim 5, characterized in that, The pulling mechanism is a steel wire rope or a pulling spring, one end of which is mounted on the fixed frame and the other end is connected to the trigger plate.

7. The fire extinguishing device according to claim 6, characterized in that, One side of the trigger plate is provided with a fixing hole for connecting the traction mechanism.

8. The fire extinguishing device according to claim 5, characterized in that, The trigger plate has one end with a trigger head that is tilted toward the drive plate at an angle of 8-15 degrees.

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