Fire early warning device for oil smoke pipeline

Abstract

The utility model discloses a fire early warning device for an oil smoke pipeline, and relates to the technical field of fire early warning devices. The device comprises a mounting pipe body, a fixing opening plate is arranged in the center of the top face of the mounting pipe body, the inner wall of the fixing opening plate is fixedly connected with a starting shell, and the bottom face of the starting shell penetrates through the top face of the mounting pipe body and extends to the inner wall of the mounting pipe body. The bottom face of the fixing opening plate is fixedly connected with the top face of the mounting pipe body through fixing bolts, the top face of the starting shell is fixedly connected with an alarm lamp, a starting switch is arranged on the upper side of the inner wall of the starting shell, and a movable vertical rod is slidably connected to the center of the lower side of the inner wall of the starting shell. A traditional sensor control setting mode is avoided, a mechanical structure starting structure is adopted, the problem that the probability of misjudgment is increased due to oil smoke attachment can be avoided, the problem that the maintenance cost is increased due to damage of internal control elements can be avoided, and the use performance of the device is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of fire warning devices, and particularly relates to a fire warning device for an oil fume duct. Background Art

[0002] A fire warning device refers to a control indicating device in a fire automatic alarm system that is used to receive, display, and transmit fire alarm signals, and can issue control signals and have other auxiliary functions. It is one of the common alarm devices;

[0003] Since the fire warning device has the functions of emitting signals and warning the surrounding environment, it is often used in locations where a fire may occur. For example, a fire warning device needs to be installed in an oil fume duct. However, when the fire warning device is installed in the oil fume duct, it will be affected by the adhesion of oil fume. Moreover, traditional fire warning devices work through sensors installed inside, which will greatly increase the probability of misjudgment and may also cause problems such as damage to the internal control components, increasing the maintenance cost. Content of the Utility Model

[0004] The utility model specifically adopts the following technical solutions to achieve the above purposes:

[0005] A fire warning device for an oil fume duct includes an installation pipe body. A fixed orifice plate is provided at the center of the top surface of the installation pipe body. The inner wall of the fixed orifice plate is fixedly connected with a starting shell. The bottom surface of the starting shell penetrates through the top surface of the installation pipe body and extends to the inner wall of the installation pipe body. The bottom surface of the fixed orifice plate is fixedly connected with the top surface of the installation pipe body through fixing bolts. An alarm lamp is fixedly connected to the top surface of the starting shell. A starting switch is provided on the upper side of the inner wall of the starting shell. A movable vertical rod is slidably connected to the center of the lower side of the inner wall of the starting shell. The bottom surface of the movable vertical rod penetrates through the lower side of the inner wall of the starting shell and extends to the bottom surface of the starting shell. A conversion mechanism is provided on the top surface of the movable vertical rod.

[0006] Furthermore, the conversion mechanism includes a top block fixedly connected to the top surface of the movable vertical rod. First toothed plates are fixedly connected to both the left and right sides of the top block. A trapezoidal groove is formed on the surface of the inner wall of the starting shell away from the movable vertical rod. A trapezoidal block is slidably connected to the inner wall of the trapezoidal groove. A second toothed plate is fixedly connected to the surface of the trapezoidal block close to the movable vertical rod. The first toothed plate and the second toothed plate are jointly meshed with a gear. A longitudinal rod is fixedly connected to the inner wall of the gear. The front and rear ends of the longitudinal rod are respectively rotatably connected to the front and rear sides of the inner wall of the starting shell. A pushing mechanism is provided on the bottom surface of the movable vertical rod.

[0007] Further, the pushing mechanism includes a push plate fixedly connected to the bottom surface of the moving vertical rod. Capacitive wires are fixedly connected to the left and right of the top surface of the push plate on both the left and right sides of the moving vertical rod. The top surfaces of the two capacitive wires are fixedly connected to the bottom surface of the starting housing. Guide rods are fixedly connected to the left and right sides of the bottom surface of the starting housing on one side of the two corresponding capacitive wires. The lower ends of the two guide rods penetrate through the bottom surface of the push plate and extend to the bottom surface of the push plate. Springs are sleeved on the rod walls of the two guide rods.

[0008] Further, starting pads are fixedly connected to the top surfaces of the two second toothed plates. The two starting pads are both block structures made of rubber.

[0009] Further, sealing rings are provided around the bottom surface of the fixed orifice plate. The bottom surface of the sealing ring is in contact with the top surface of the installation pipe body.

[0010] Further, a protective mesh cover is snap-fitted around the alarm lamp on the top surface of the fixed orifice plate.

[0011] Further, suspension rods are fixedly connected to the four corners of the top surface of the installation pipe body where the fixed orifice plate is located. The upper ends of the four suspension rods are fixedly connected with suspension rings.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. During the use of the present utility model, the flue gas in the installation pipe body will pass through the lower part of the moving vertical rod and the capacitive wires. The extended temperature cannot cause the capacitive wires to melt. When a fire occurs, the temperature will cause the capacitive wires to melt. In this way, under the elastic force of the spring, the push plate drives the moving vertical rod to move downward. Through the conversion effect of the first toothed plate and the second toothed plate, the second toothed plate can press the start switch, thereby ensuring the transmission and control of information and the start effect of the alarm lamp, and ensuring the normal warning effect of the device. Through the above structure, the present device avoids the traditional sensor control setting method and adopts a mechanical structure start structure, which can avoid the problem of increasing the probability of misjudgment due to oil fume adhesion, and can also avoid the problem of increasing the maintenance cost due to damage to the internal control components, ensuring the use performance of the device.

[0014] 2. Through the setting of the starting pads in the present utility model, the protection effect on the surface of the start switch can be ensured, and the problem of damage to the internal structure of the device will not occur. By using the setting of the sealing ring, the problem that the flue gas in the installation pipe body will not leak out can be ensured, ensuring the safety during the use of the device.

[0015] 3. Through the setting of the protective mesh cover in the present utility model, the alarm lamp can be protected to avoid damage and wear of the alarm lamp. Through the setting of the suspension rods and suspension rings, it is convenient to install the whole device on the main body, ensuring the convenient installation effect of the device. Description of the Drawings

[0016] Figure 1 is the front sectional view of the whole utility model;

[0017] Figure 2 is the Figure 1 enlarged view of part A in the utility model;

[0018] Figure 3 is the Figure 1 enlarged view of part B in the utility model;

[0019] Figure 4 is the three - dimensional view of the whole utility model;

[0020] Figure 5 is the three - dimensional view of the first toothed plate of the utility model;

[0021] Reference numerals: 1, installation pipe body; 2, fixed orifice plate; 3, starting shell; 4, alarm lamp; 5, starting switch; 6, moving vertical rod; 7, top block; 8, first toothed plate; 9, trapezoidal groove; 10, trapezoidal block; 11, second toothed plate; 12, gear; 13, longitudinal rod; 14, push plate; 15, capacitor wire; 16, guide rod; 17, spring; 18, starting cushion block; 19, sealing ring; 20, protective mesh cover; 21, suspension rod; 22, suspension ring. Specific embodiments

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0023] The "front, back, left, and right" perspectives of this device are based on the direction of the attached drawings.

[0024] Such as Figures 1-5As shown in the figure, a fire warning device for an oil fume duct includes an installation pipe body 1. At the center of the top surface of the installation pipe body 1, there is a fixed orifice plate 2. The inner wall of the fixed orifice plate 2 is fixedly connected with a starting shell 3. The bottom surface of the starting shell 3 penetrates through the top surface of the installation pipe body 1 and extends to the inner wall of the installation pipe body 1. The bottom surface of the fixed orifice plate 2 is fixedly connected with the top surface of the installation pipe body 1 through a fixing bolt. The top surface of the starting shell 3 is fixedly connected with an alarm lamp 4. On the upper side of the inner wall of the starting shell 3, there is a starting switch 5. At the center of the lower side of the inner wall of the starting shell 3, there is a sliding connection with a moving vertical rod 6. The cross-section of the moving vertical rod 6 is rectangular, which can ensure the effect that the moving vertical rod 6 will not rotate. The bottom surface of the moving vertical rod 6 penetrates through the lower side of the inner wall of the starting shell 3 and extends to the bottom surface of the starting shell 3. A conversion mechanism is arranged on the top surface of the moving vertical rod 6. The conversion mechanism includes a top block 7 fixedly connected to the top surface of the moving vertical rod 6. On the left and right sides of the top block 7, there are first toothed plates 8 fixedly connected respectively. On the side of the inner wall of the starting shell 3 away from the moving vertical rod 6, there is a trapezoidal groove 9. A trapezoidal block 10 is slidably connected to the inner wall of the trapezoidal groove 9. On the side of the trapezoidal block 10 close to the moving vertical rod 6, there is a second toothed plate 11 fixedly connected. The opposite sides of the first toothed plate 8 and the second toothed plate 11 are jointly meshed with a gear 12. The inner wall of the gear 12 is fixedly connected with a longitudinal rod 13. The front and rear ends of the longitudinal rod 13 are respectively rotatably connected to the front and rear sides of the inner wall of the starting shell 3. A pushing mechanism is arranged on the bottom surface of the moving vertical rod 6. The pushing mechanism includes a push plate 14 fixedly connected to the bottom surface of the moving vertical rod 6. On the left and right of the top surface of the push plate 14 and on both sides of the moving vertical rod 6, there are capacitor wires 15 fixedly connected. The connection method between the capacitor wires 15 and the starting shell 3 and the push plate 14 is fixed by using fixing bolts, which can ensure the effect of replacing the capacitor wires 15, and the temperature of the capacitor wires 15 can adapt to the temperature of the flue gas, which can ensure the normal warning effect. The top surfaces of the two capacitor wires 15 are fixedly connected with the bottom surface of the starting shell 3. On the left and right sides of the bottom surface of the starting shell 3 and on one side of the two corresponding capacitor wires 15, there are guide rods 16 fixedly connected respectively. The lower ends of the two guide rods 16 penetrate through the bottom surface of the push plate 14 and extend to the bottom surface of the push plate 14. Spring 17 is sleeved on the rod walls of the two guide rods 16. The flue gas in the installation pipe body 1 will pass through the lower part of the moving vertical rod 6 and the capacitor wires 15, and the extended temperature cannot cause the capacitor wires 15 to fuse. When a fire occurs, the temperature will cause the capacitor wires 15 to fuse. In this way, under the elastic force of the spring 17, the push plate 14 will drive the moving vertical rod 6 to move downward. Through the conversion effect of the first toothed plate 8 and the second toothed plate 11, the second toothed plate 11 can press the starting switch 5, thereby ensuring the transmission and control of information and the starting effect of the alarm lamp 4, and ensuring the normal warning effect of the device. This device avoids the traditional sensor control setting method and adopts a mechanical structure starting structure, which can avoid the problem of increasing the probability of misjudgment due to oil fume adhesion, and can also avoid the problem of increasing the maintenance cost due to damage to the internal control components, and ensures the use performance of the device.

[0025] As Figures 1-3 shown, in some embodiments, starting pads 18 are fixedly connected to the top surfaces of both of the second toothed plates 11. By providing the starting pads 18, the effect of protecting the surface of the starting switch 5 can be ensured, and the problem of damage to the internal structure of the device will not occur. Both of the starting pads 18 are block structures made of rubber. Sealing rings 19 are provided around the bottom surface of the fixed orifice plate 2, and the bottom surface of the sealing ring 19 is in contact with the top surface of the installation pipe body 1. By providing the sealing rings 19, the problem that the flue gas in the installation pipe body 1 will not leak out can be ensured, and the safety during the use of the device can be guaranteed.

[0026] As Figures 2-4 shown, in some embodiments, a protective mesh cover 20 is snap-connected around the warning lamp 4 on the top surface of the fixed orifice plate 2. By providing the protective mesh cover 20, the warning lamp 4 can be protected to avoid damage and wear problems of the warning lamp 4. Suspension rods 21 are fixedly connected to the four corners of the fixed orifice plate 2 on the top surface of the installation pipe body 1, and suspension rings 22 are fixedly connected to the upper ends of the four suspension rods 21. By providing the suspension rods 21 and the suspension rings 22, the overall installation of the device with the main body is facilitated, and the convenient installation effect of the device is ensured. The prominent innovative structure of the device will not be elaborated too much on the prior art.

[0027] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fire warning device for an oil fume duct, comprising a mounting pipe body (1), characterized in that, At the center of the top surface of the installation pipe body (1), a fixed orifice plate (2) is provided. The inner wall of the fixed orifice plate (2) is fixedly connected to a starting shell (3). The bottom surface of the starting shell (3) penetrates through the top surface of the installation pipe body (1) and extends to the inner wall of the installation pipe body (1). The bottom surface of the fixed orifice plate (2) is fixedly connected to the top surface of the installation pipe body (1) by fixing bolts. The top surface of the starting shell (3) is fixedly connected to an alarm lamp (4). On the upper side of the inner wall of the starting shell (3), a starting switch (5) is provided. At the center of the lower side of the inner wall of the starting shell (3), a moving vertical rod (6) is slidably connected. The bottom surface of the moving vertical rod (6) penetrates through the lower side of the inner wall of the starting shell (3) and extends to the bottom surface of the starting shell (3). A conversion mechanism is provided on the top surface of the moving vertical rod (6).

2. The fire warning device for an oil fume duct according to claim 1, wherein The conversion mechanism includes a top block (7) fixedly connected to the top surface of the moving vertical rod (6). On the left and right sides of the top block (7), first toothed plates (8) are fixedly connected. On the surface of the inner wall of the starting shell (3) away from the moving vertical rod (6), a trapezoidal groove (9) is formed. A trapezoidal block (10) is slidably connected to the inner wall of the trapezoidal groove (9). On the surface of the trapezoidal block (10) close to the moving vertical rod (6), a second toothed plate (11) is fixedly connected. The first toothed plate (8) and the second toothed plate (11) are jointly meshed with a gear (12). The inner wall of the gear (12) is fixedly connected to a longitudinal rod (13). The front and rear ends of the longitudinal rod (13) are respectively rotatably connected to the front and rear sides of the inner wall of the starting shell (3). A pushing mechanism is provided on the bottom surface of the moving vertical rod (6).

3. The fire warning device for an oil fume duct according to claim 2, wherein, The pushing mechanism includes a push plate (14) fixedly connected to the bottom surface of the moving vertical rod (6). On the left and right sides of the top surface of the push plate (14) and on the left and right sides of the moving vertical rod (6), capacitor wires (15) are fixedly connected. The top surfaces of the two capacitor wires (15) are fixedly connected to the bottom surface of the starting shell (3). On the left and right sides of the bottom surface of the starting shell (3) and on one side of the two corresponding capacitor wires (15), guide rods (16) are fixedly connected. The lower ends of the two guide rods (16) penetrate through the bottom surface of the push plate (14) and extend to the bottom surface of the push plate (14). Spring (17) is sleeved on the rod walls of the two guide rods (16).

4. The fire warning device for an oil fume duct according to claim 2, characterized in that, On the top surfaces of the two second toothed plates (11), starting pads (18) are fixedly connected. The two starting pads (18) are both block structures made of rubber material.

5. The fire warning device for an oil fume duct according to claim 1, characterized in that, Around the bottom surface of the fixed orifice plate (2), a sealing ring (19) is provided. The bottom surface of the sealing ring (19) is in contact with the top surface of the installation pipe body (1).

6. The fire warning device for an oil fume duct according to claim 1, characterized in that, On the top surface of the fixed orifice plate (2) and around the alarm lamp (4), a protective mesh cover (20) is snap-connected.

7. The fire warning device for an oil fume duct according to claim 1, characterized in that, At the four corners of the top surface of the installation pipe body (1) and at the positions of the fixed orifice plate (2), suspension rods (21) are fixedly connected. The upper ends of the four suspension rods (21) are fixedly connected to suspension rings (22).

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