A new fire extinguishing device for guide rail distribution box

Abstract

This application relates to the field of electrical distribution box technology, and in particular to a novel fire extinguishing device for rail-mounted electrical distribution boxes. The device includes a left outer casing, with a matching right outer casing mounted on one side of the left outer casing. Two latches are provided between the left and right outer casings, which are fixedly installed by the two inner latches. Each latch has an unlocking lever on one side, and a connecting assembly is provided between the two unlocking levers. This application, by incorporating components such as unlocking levers, spring grooves, spring hooks, lever fulcrums, and sensing wire holes, automatically activates via a temperature sensing wire when an open flame occurs inside the electrical distribution box or the internal temperature reaches 170℃±20℃, releasing fire extinguishing gas. The device is compact and features a spring lever mechanical structure. During installation, the device can be directly inserted into the rail through the opening without disassembling the electrical distribution box panel. During disassembly, simply squeezing the upper and lower unlocking levers with one hand unlocks the latches, allowing for direct removal.

Description

Technical Field

[0001] This application relates to the field of electrical distribution box technology, and in particular to a novel fire extinguishing device for rail-mounted electrical distribution boxes. Background Technology

[0002] Distribution boxes are very common electrical products, used in both homes and public places. They are mainly used to assemble electrical components such as circuit breakers and electrical switches, and their market is extremely broad. In existing distribution box structures, there are generally two components: the distribution box body and the guide rails. The distribution box body is embedded in the wall, and the guide rails are fixed inside the distribution box body. The electrical components are then fixed to the guide rails.

[0003] Currently, fire extinguishing devices used in rail-mounted distribution boxes on the market usually adopt a similar shape to general rail-mounted circuit breakers. For example, the rail-mounted intelligent fire extinguishing module disclosed in CN202121669882.2 is fixed at one end and has a spring movement mechanism at the other end. During installation, the distribution box panel needs to be removed and the module is then inserted into the rail.

[0004] However, the above design has the following problems: the device is large in size, the installation method is cumbersome, the main moving mechanism is at the rear of the device, and there is a risk of electric shock during installation and disassembly.

[0005] Therefore, a new type of fire extinguishing device for rail-mounted electrical distribution boxes is proposed. Utility Model Content

[0006] In order to solve the problems mentioned in the background art, this application provides a novel fire extinguishing device for rail-mounted distribution boxes.

[0007] The novel fire extinguishing device for a rail-mounted distribution box provided in this application adopts the following technical solution: A novel fire extinguishing device for a rail-mounted distribution box includes a left outer shell, a right outer shell that matches the left outer shell is installed on one side of the left outer shell, two buckles are provided between the left outer shell and the right outer shell, the left outer shell and the right outer shell are fixedly installed by the two buckles on the inner side, an unlocking rod is provided on one side of each of the two buckles, and a connecting component is provided between the two unlocking rods;

[0008] The connecting assembly includes two spring hooks and a tension spring. The two spring hooks are fixedly installed on one side of the unlocking rod, and the hooks at both ends of the tension spring are installed on the two spring hooks.

[0009] The above scheme facilitates the application of force when the device is mounted on the guide rail by means of spring hooks and tension springs.

[0010] Optionally, a plurality of ventilation holes are provided through one side of the left outer casing.

[0011] The above design ensures good air permeability for both the left and right outer shells through the ventilation holes.

[0012] Optionally, both the left and right outer shells have induction wire holes on one side.

[0013] The above method facilitates the installation of the induction wire inside the induction wire hole.

[0014] Optionally, the left and right outer shells are each fixedly connected to two limiting posts that match the buckle on opposite sides, and one end of each of the limiting posts is installed into the gap on both sides of the buckle.

[0015] The above solution allows for easy connection between the left and right outer shells via a snap-fit ​​mechanism.

[0016] Optionally, a lever fulcrum is fixedly installed on one side of each of the two unlocking rods.

[0017] The above scheme makes it easier to apply force to the unlocking lever by setting a lever fulcrum, making it more convenient to use.

[0018] Optionally, the left and right outer shells are each provided with two limiting grooves on their respective inner sides, and two limiting claws that match the limiting grooves are fixedly connected to both ends of the two unlocking rods. Multiple limiting claws are installed into the corresponding limiting grooves through the unlocking rods.

[0019] The above solution facilitates the installation of the unlocking rod into the limiting groove via the limiting claw, allowing the limiting claw to move freely within the limiting groove and improving its performance.

[0020] Optionally, the ends of the two unlocking rods are hook-shaped and connected to the fixing post at the bottom of the buckle.

[0021] The above solution uses a hook-shaped end to unlock the rod, which facilitates clamping and installation at the bottom of the locking post.

[0022] Optionally, the left and right outer shells are provided with spring grooves on their respective inner sides, and the outer side of the tension spring is installed inside the spring groove.

[0023] The above solution facilitates the installation of the pull ring.

[0024] In summary, this application includes the following beneficial technical effects:

[0025] This utility model, by incorporating components such as an unlocking rod, spring groove, spring hook, lever fulcrum, and sensor wire hole, automatically activates via a temperature sensing wire when an open flame occurs inside the distribution box or the internal temperature reaches 170℃±20℃, releasing fire extinguishing gas. The device is compact and features a spring lever mechanical structure. During installation, it can be directly inserted into the guide rail through the opening without disassembling the distribution box panel. Disassembly is simple: just pinch the upper and lower unlocking rods with one hand to unlock the latch and remove the device. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the external structure in the embodiments of this application;

[0027] Figure 2 This is a schematic diagram of the first-view structure in an embodiment of this application;

[0028] Figure 3 This is a schematic diagram of the second perspective structure in the embodiments of this application;

[0029] Figure 4 This is a top view of an embodiment of this application.

[0030] Reference numerals: 1. Left outer shell; 2. Right outer shell; 3. Unlocking rod; 4. Buckle; 5. Tension spring; 6. Limiting groove; 7. Limiting post; 8. Limiting claw; 9. Spring hook; 10. Spring groove; 11. Lever fulcrum; 12. Sensor wire hole; 13. Vent hole. Detailed Implementation

[0031] The following is in conjunction with the appendix Figures 1 to 4 This application will be described in further detail.

[0032] This application discloses a novel fire extinguishing device for rail-mounted electrical distribution boxes.

[0033] Please see Figure 1 A new type of fire extinguishing device for rail-mounted distribution boxes includes a left outer shell 1. Multiple ventilation holes 13 are provided through one side of the left outer shell 1. Two limiting grooves 6 are provided on the inner sides of the left outer shell 1 and the right outer shell 2. Two limiting claws 8 that match the limiting grooves 6 are fixedly connected to both ends of the two unlocking rods 3. The multiple limiting claws 8 are installed into the corresponding limiting grooves 6 through the unlocking rods 3. A lever fulcrum 11 is fixedly installed on one side of each of the two unlocking rods 3.

[0034] Please see Figure 2 and Figure 3The left outer shell 1 and the right outer shell 2 are each provided with two limiting grooves 6 on their inner sides. Both ends of the two unlocking rods 3 are fixedly connected with two limiting claws 8 that match the limiting grooves 6. Multiple limiting claws 8 are installed into the corresponding limiting grooves 6 through the unlocking rods 3. The limiting grooves 6 are used to limit the range of motion of the unlocking rods 3. The limiting claws 8 are installed into the limiting grooves 6 so that the limiting claws 8 can be driven to move inside the limiting grooves 6 under the action of the unlocking rods 3.

[0035] Please see Figure 4 The left outer shell 1 and the right outer shell 2 have spring grooves 10 on their respective inner sides. The outer side of the tension spring 5 is installed inside the spring groove 10. The left outer shell 1 and the right outer shell 2 each have two limiting grooves 6 on their respective inner sides. The two unlocking rods 3 are fixedly connected to two limiting claws 8 that match the limiting grooves 6 at both ends. Multiple limiting claws 8 are installed inside the corresponding limiting grooves 6 through the unlocking rods 3. The limiting grooves 6 are used to limit the range of motion of the unlocking rods 3. The limiting claws 8 are installed inside the limiting grooves 6 so that the limiting claws 8 can move inside the limiting grooves 6 under the action of the unlocking rods 3.

[0036] Please see Figure 1 and Figure 3 A right outer shell 2, matching the left outer shell 1, is installed on one side of the left outer shell 1. Two buckles 4 are provided between the left outer shell 1 and the right outer shell 2. The left outer shell 1 and the right outer shell 2 are fixedly installed by the two buckles 4 on the inside. An unlocking rod 3 is provided on one side of each of the two buckles 4. A connecting component is provided between the two unlocking rods 3. A sensor wire hole 12 is opened on one side of both the left outer shell 1 and the right outer shell 2. Two limiting posts 7 matching the buckles 4 are fixedly connected to the opposite side of the left outer shell 1 and the right outer shell 2. One end of the multiple limiting posts 7 is installed into the gaps on both sides of the buckles 4.

[0037] Please see Figures 2 to 4 The connecting assembly includes two spring hooks 9 and a tension spring 5. The two spring hooks 9 are fixedly installed on one side of the unlocking rod 3. The hooks at both ends of the tension spring 5 are installed on the two spring hooks 9. The connection between the two ends of the tension spring 5 and the spring hooks 9 can provide tension to the unlocking rod 3, so that the buckle 4 is engaged on the guide rail to provide force. The tails of the two unlocking rods 3 are hook-shaped and connected to the fixing post at the bottom of the buckle 4.

[0038] The implementation principle of a novel fire extinguishing device for a rail-mounted distribution box according to an embodiment of this application is as follows:

[0039] First, when assembling the left outer shell 1 and the right outer shell 2, the buckle 4 is installed between the left outer shell 1 and the right outer shell 2, so that the limiting post 7 is installed in the gap on both sides of the buckle 4. At the same time, the tails of the two unlocking rods 3 are connected to the fixing post at the bottom of the buckle 4. The two ends of the spring hook 9 are fitted with tension springs 5 ​​and placed inside the spring groove 10. The limiting claws 8 at both ends of the two unlocking rods 3 are installed inside the limiting groove 6. The limiting groove 6 is used to limit the range of motion of the unlocking rod 3, and the limiting post 7 is used to limit the range of motion of the buckle 4 to prevent loss.

[0040] When the device needs to be unlocked, use lever fulcrum 11 to press the unlocking lever 3 up and down at the same time. The tail buckle 4 will then be released, and the device can be pulled out. When installing the device, there is no need to remove the distribution box panel. Simply push the device in, and the buckle 4 will automatically tighten and lock, allowing it to be hung on the guide rail.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A novel fire extinguishing device for a rail-mounted electrical distribution box, comprising a left outer casing (1), characterized in that: A right outer shell (2) matching the left outer shell (1) is installed on one side of the left outer shell (1). Two buckles (4) are provided between the left outer shell (1) and the right outer shell (2). The left outer shell (1) and the right outer shell (2) are fixedly installed by the two buckles (4) on the inner side. An unlocking rod (3) is provided on one side of each of the two buckles (4). A connecting component is provided between the two unlocking rods (3). The connecting assembly includes two spring hooks (9) and a tension spring (5). The two spring hooks (9) are fixedly installed on one side of the unlocking rod (3), and the hooks at both ends of the tension spring (5) are installed on the two spring hooks (9).

2. The novel fire extinguishing device for a rail-mounted distribution box according to claim 1, characterized in that: The left outer shell (1) and the right outer shell (2) are each fixedly connected to two limiting posts (7) that match the buckle (4) on opposite sides, and one end of each of the limiting posts (7) is installed into the gaps on both sides of the buckle (4).

3. The novel fire extinguishing device for a rail-mounted distribution box according to claim 1, characterized in that: The left outer shell (1) and the right outer shell (2) are each provided with two limiting grooves (6) on their respective inner sides. Both ends of the two unlocking rods (3) are fixedly connected with two limiting claws (8) that match the limiting grooves (6). Multiple limiting claws (8) are installed into the corresponding limiting grooves (6) through the unlocking rods (3).

4. The novel fire extinguishing device for a rail-mounted distribution box according to claim 1, characterized in that: The two unlocking rods (3) are hook-shaped at the end and connected to the fixing post at the bottom of the buckle (4).

5. The novel fire extinguishing device for a rail-mounted distribution box according to claim 1, characterized in that: The left outer shell (1) has multiple ventilation holes (13) through one side.

6. The novel fire extinguishing device for a rail-mounted distribution box according to claim 1, characterized in that: The left outer shell (1) and the right outer shell (2) are provided with spring grooves (10) on their respective inner sides, and the outer side of the tension spring (5) is installed inside the spring groove (10).

7. The novel fire extinguishing device for a rail-mounted distribution box according to claim 1, characterized in that: Each of the two unlocking rods (3) has a lever fulcrum (11) fixedly installed on one side.

8. The novel fire extinguishing device for a rail-mounted distribution box according to claim 1, characterized in that: Both the left outer shell (1) and the right outer shell (2) have induction wire holes (12) on one side.

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