Smoke exhaust fireproof valve convenient to install and overhaul

Abstract

The utility model relates to the technical field of smoke exhaust fireproof valves, and discloses a smoke exhaust fireproof valve convenient to install and overhaul, which comprises a smoke exhaust fireproof valve body, a first connecting pipe is arranged on the side wall of the smoke exhaust fireproof valve body, a second connecting pipe is connected to one side wall of the first connecting pipe in a sliding mode, and a fixing assembly is arranged on one side wall of the second connecting pipe. A cleaning assembly is arranged on the side wall of the smoke exhaust fireproof valve body. The fixing assembly comprises a fixing frame, the side wall of the fixing frame is fixedly connected to one side wall of the connecting pipe, a fixing block is fixedly connected to the side wall of the smoke exhaust fireproof valve body, a sleeve is fixedly connected to the interior of the fixing frame, a connecting rod is slidably connected to the interior of the sleeve, and a clamping column is fixedly connected to the side wall of the connecting rod. According to the smoke exhaust fireproof valve, the shifting plate is pulled to drive the connecting rod to compress the double springs to enable the clamping column to retract, the shifting plate is loosened after the fixing block is inserted, the springs rebound to achieve rapid locking, the problem that installation and disassembly are complex and time-consuming is solved, and installation convenience of the smoke exhaust fireproof valve is improved.

Description

Technical Field

[0001] This utility model relates to the field of smoke exhaust fire damper technology, and in particular to a smoke exhaust fire damper that is easy to install and maintain. Background Technology

[0002] In modern building fire protection systems, smoke exhaust fire dampers are widely used in ventilation and air conditioning systems and mechanical smoke exhaust systems as key fire prevention and smoke control devices. Their main function is to effectively block the spread of high-temperature smoke by triggering a closing action through a temperature-sensing element during a fire, thus buying valuable time for personnel evacuation and fire rescue. With the increasing scale and complexity of buildings, higher demands are placed on the ease of installation and subsequent maintenance efficiency of smoke exhaust fire dampers. Therefore, a smoke exhaust fire damper device that can be quickly installed and is easy to maintain is needed.

[0003] Traditionally, smoke exhaust fire dampers are connected to ventilation ducts primarily using bolt and nut connections or welding. Bolt and nut connections require pre-drilling multiple bolt holes on the flanges of both the fire damper and the duct. During installation, bolts must be passed through each hole and the nuts tightened, making the process cumbersome. Welding, on the other hand, requires specialized welding equipment and personnel, using high-temperature melting of metal to achieve the connection. After welding, the weld seam must be ground and treated with anti-corrosion measures.

[0004] However, traditional bolt and nut or welding fixing methods are complex and time-consuming to install and disassemble. In large-scale fire protection engineering construction, this will increase labor costs and construction period. When inspecting or replacing fire dampers in the later stage, a lot of time is also required for disassembly and reinstallation, which affects the maintenance efficiency of the fire protection system. Therefore, a smoke exhaust fire damper that is easy to install and maintain is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a smoke exhaust fire damper that is easy to install and maintain, aiming to improve the problem that the traditional method of fixing with bolts, nuts or welding is complicated and time-consuming during installation and disassembly.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A smoke exhaust fire damper that is easy to install and maintain includes a smoke exhaust fire damper body, a connecting pipe one is provided on the side wall of the smoke exhaust fire damper body, a connecting pipe two is slidably connected to one side wall of the connecting pipe, a fixing component is provided on one side wall of the connecting pipe, and a cleaning component is provided on the side wall of the smoke exhaust fire damper body.

[0008] The fixing assembly includes a fixing frame, the side wall of which is fixedly connected to the side wall of the connecting pipe, a fixing block fixedly connected to the side wall of the smoke exhaust fire damper body, a sleeve fixedly connected inside the fixing frame, a connecting rod slidably connected inside the sleeve, a locking pin fixedly connected to the side wall of the connecting rod, the locking pin slidably connected to the inside of the fixing frame and the fixing block, a lever fixedly connected to the side wall of the connecting rod, the lever slidably connected to the side wall of the fixing frame, a first spring sleeved on the side wall of the connecting rod, and a second spring provided inside the sleeve.

[0009] As a further description of the above technical solution:

[0010] The cleaning assembly includes an air pump, the bottom of which is fixedly connected to the upper surface of the smoke exhaust fire damper body.

[0011] As a further description of the above technical solution:

[0012] The smoke exhaust fire damper body has a conveying pipe on its side wall, and a connecting frame is fixedly connected to the side wall of the conveying pipe. The side wall of the connecting frame is fixedly connected to the side wall of the smoke exhaust fire damper body.

[0013] As a further description of the above technical solution:

[0014] The air pump outlet is fixedly connected to an air outlet pipe, and the side wall of the air outlet pipe is fixedly connected to the side wall of the delivery pipe.

[0015] As a further description of the above technical solution:

[0016] A fixed pipe is fixedly connected to the side wall of the delivery pipe, and the side wall of the fixed pipe is fixedly connected to the inside of the smoke exhaust fire damper body. An air jet head is fixedly connected to the side wall of the fixed pipe.

[0017] As a further description of the above technical solution:

[0018] Multiple fixed tubes and jet heads are provided and arranged in a linear array.

[0019] As a further description of the above technical solution:

[0020] The sidewall of the fixing block is slidably connected inside the fixing frame, and the sidewall of the connecting rod is slidably connected inside the fixing frame.

[0021] As a further description of the above technical solution:

[0022] One end of the first spring is fixedly connected to the side wall of the connecting rod, the other end of the first spring is fixedly connected to the side wall of the sleeve, and the side wall of the second spring is fixedly connected between the connecting rods.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, during installation, the sliding connecting pipe one and the connecting pipe two are adjusted to a suitable length. The lever is pulled to make the connecting rod slide in the sleeve, compressing the first spring and the second spring, which drives the locking pin to retract into the fixed frame. After inserting the fixed block, the lever is released, and the spring rebounds to push the locking pin into the fixed block for fixation. This solves the problem of complex operation and time-consuming operation during installation and disassembly of the traditional method of fixing with bolts, nuts or welding. The above technical solution improves the ease of installation of the smoke exhaust fire damper.

[0025] 2. In this utility model, after the air pump is started, compressed air enters the interior of the fixed pipe through the air outlet pipe and the delivery pipe. The air jet head forms an air curtain to blow away the accumulated dust. The connecting frame supports the delivery pipe to ensure stable airflow. This solves the problem of the valve plate being obstructed and the sealing performance being reduced due to dust accumulation inside the smoke exhaust fire damper. The above technical solution improves the self-cleaning ability of the smoke exhaust fire damper. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a smoke exhaust fire damper that is easy to install and maintain, as proposed in this utility model.

[0027] Figure 2 This utility model provides a schematic diagram of the connecting pipe structure for a smoke exhaust fire damper that is easy to install and maintain.

[0028] Figure 3 This is a schematic diagram of the internal structure of the fixing frame of a smoke exhaust fire damper that is easy to install and maintain, as proposed in this utility model.

[0029] Figure 4 This is a schematic diagram of the internal structure of a smoke exhaust fire damper that is easy to install and maintain, as proposed in this utility model.

[0030] Figure 5 This is a schematic diagram of the cleaning structure of a smoke exhaust fire damper that is easy to install and maintain, as proposed in this utility model.

[0031] Legend:

[0032] 1. Smoke exhaust fire damper body; 2. Connecting pipe one; 3. Connecting pipe two; 4. Fixing frame; 5. Fixing block; 6. Sleeve; 7. Connecting rod; 8. Locking post; 9. Paddle plate; 10. First spring; 11. Second spring; 12. Air pump; 13. Delivery pipe; 14. Connecting frame; 15. Air outlet pipe; 16. Fixing pipe; 17. Jet nozzle. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figures 1-3 This utility model provides an embodiment of a smoke exhaust fire damper that is easy to install and maintain. It includes a smoke exhaust fire damper body 1, which is composed of a valve body, valve plate, temperature sensing element, actuator, and other components. It is used to automatically close and block smoke in the event of a fire, achieving fire prevention and smoke isolation. This is existing technology and will not be described in detail here. A connecting pipe 2 is provided on the side wall of the smoke exhaust fire damper body 1. A connecting pipe 3 is slidably connected to the side wall of the connecting pipe 2. The sliding sleeve structure of the connecting pipe 2 and the connecting pipe 3 allows for adjustable connection between the smoke exhaust fire damper body 1 and the ventilation duct, achieving the effect of compensating for installation errors and adapting to different space requirements. A fixing component is provided on the side wall of the connecting pipe 2, and a cleaning component is provided on the side wall of the smoke exhaust fire damper body 1. The fixing component includes a fixing frame 4, whose side wall is fixedly connected to the side wall of the connecting pipe 2. A fixing block 5 is fixedly connected to the side wall of the smoke exhaust fire damper body 1. A sleeve 6 is fixedly connected inside the fixing frame 4, and a connecting rod is slidably connected inside the sleeve 6. 7. A locking post 8 is fixedly connected to the side wall of the connecting rod 7. The side wall of the locking post 8 is slidably connected inside the fixing frame 4 and the fixing block 5. The fixing frame 4 and the fixing block 5 are used to quickly lock the installation position of the smoke exhaust fire damper body 1 through the insertion and removal of the locking post 8. A lever 9 is fixedly connected to the side wall of the connecting rod 7. The side wall of the lever 9 is slidably connected inside the fixing frame 4. The linkage structure between the lever 9 and the connecting rod 7 is used to drive the locking post 8 to slide within the fixing frame 4 and the fixing block 5. A first spring 10 and a sleeve 6 are sleeved on the side wall of the connecting rod 7. The device is equipped with a second spring 11. The side wall of the fixing block 5 is slidably connected to the inside of the fixing frame 4. The side wall of the connecting rod 7 is slidably connected to the inside of the fixing frame 4. One end of the first spring 10 is fixedly connected to the side wall of the connecting rod 7, and the other end of the first spring 10 is fixedly connected to the side wall of the sleeve 6. The side wall of the second spring 11 is fixedly connected between the connecting rods 7. The double spring design of the first spring 10 and the second spring 11 is used to provide the pre-tightening force and redundant locking of the locking post 8, thereby enhancing the shock resistance and preventing accidental disengagement.

[0035] Reference Figure 4 and Figure 5The cleaning assembly includes an air pump 12, the bottom of which is fixedly connected to the upper surface of the smoke exhaust fire damper body 1. A delivery pipe 13 is provided on the side wall of the smoke exhaust fire damper body 1, and a connecting frame 14 is fixedly connected to the side wall of the delivery pipe 13. The connecting frame 14 is a support structure for the delivery pipe 13, used to fix the delivery pipe 13 and enhance its vibration resistance, thus ensuring stable airflow transmission. An outlet pipe 15 is fixedly connected to the outlet of the air pump 12, and the side wall of the outlet pipe 15 is fixedly connected to the side wall of the delivery pipe 13. The air pump 12... The connection structure between the air outlet pipe 15 and the delivery pipe 13 is used to deliver compressed air to the fixed pipe 16, thereby providing an air source for the cleaning components. The fixed pipe 16 is fixedly connected to the side wall of the delivery pipe 13. The side wall of the fixed pipe 16 is fixedly connected to the inside of the smoke exhaust fire damper body 1. The side wall of the fixed pipe 16 is fixedly connected to the jet nozzle 17. Multiple fixed pipes 16 and jet nozzles 17 are provided and arranged in a linear array. The linear array layout of the fixed pipes 16 and jet nozzles 17 is used to form a uniform air curtain inside the smoke exhaust fire damper body 1, thereby achieving the effect of efficiently removing dust accumulated on the surface of the valve plate.

[0036] Working principle: When the smoke exhaust fire damper body 1 needs to be installed, the connecting pipe 1 2 and the connecting pipe 2 3 are adjusted to the appropriate length. Then, the lever 9 is pulled to move the connecting rod 7 inside the sleeve 6, which compresses the second spring 11. At the same time, the movement of the connecting rod 7 also compresses the first spring 10. The movement of the connecting rod 7 drives the locking pin 8 into the fixed frame 4. After the fixing block 5 is inserted into the fixed frame 4, the lever 9 is released after the fixing block 5 is fully inserted. The first spring 10 and the second spring 11 rebound and push the locking pin 8 into the fixing block 5 to complete the locking.

[0037] After the air pump 12 is started, it generates compressed air, which is delivered to the delivery pipe 13 through the air outlet pipe 15, and then distributed to each jet head 17 through the fixed pipe 16. The jet heads 17 in a linear array form a uniform air curtain on the valve plate surface, continuously blowing away accumulated dust. The connecting frame 14 supports the delivery pipe 13 to ensure stable airflow transmission.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A smoke exhaust fire damper which is easy to install and maintain, comprising a smoke exhaust fire damper body (1), characterized in that: The side wall of the smoke exhaust fire damper body (1) is provided with a connecting pipe one (2), the side wall of the connecting pipe one (2) is slidably connected with a connecting pipe two (3), the side wall of the connecting pipe one (2) is provided with a fixing assembly, and the side wall of the smoke exhaust fire damper body (1) is provided with a cleaning assembly. The fixing assembly comprises a fixing frame (4) fixedly connected to the side wall of the connecting pipe one (2), a fixing block (5) fixedly connected to the side wall of the smoke exhaust fire damper body (1), a sleeve (6) fixedly connected to the inside of the fixing frame (4), a connecting rod (7) slidably connected to the inside of the sleeve (6), a clamping column (8) fixedly connected to the side wall of the connecting rod (7), the clamping column (8) being slidably connected to the inside of the fixing frame (4) and the fixing block (5), a push plate (9) fixedly connected to the side wall of the connecting rod (7), the push plate (9) being slidably connected to the inside of the fixing frame (4), a first spring (10) sleeved on the side wall of the connecting rod (7), and a second spring (11) provided in the inside of the sleeve (6).

2. The smoke control fire damper of claim 1, wherein: The cleaning assembly comprises an air pump (12) fixedly connected to the upper surface of the smoke exhaust fire damper body (1).

3. The smoke control fire damper of claim 2, wherein: The side wall of the smoke exhaust fire damper body (1) is provided with a conveying pipe (13), the side wall of the conveying pipe (13) is fixedly connected with a connecting frame (14), and the side wall of the connecting frame (14) is fixedly connected to the side wall of the smoke exhaust fire damper body (1).

4. The smoke control fire damper of claim 3, wherein: The air outlet of the air pump (12) is fixedly connected with an air outlet pipe (15), and the side wall of the air outlet pipe (15) is fixedly connected to the side wall of the conveying pipe (13).

5. The smoke control fire damper of claim 4, wherein: The side wall of the conveying pipe (13) is fixedly connected with a fixing pipe (16), the side wall of the fixing pipe (16) is fixedly connected to the inside of the smoke exhaust fire damper body (1), and the side wall of the fixing pipe (16) is fixedly connected with a jet head (17).

6. The smoke control fire damper of claim 5, wherein: The fixing pipe (16) and the jet head (17) are provided with a plurality of straight line arrays.

7. The smoke control fire damper of claim 1, wherein: The side wall of the fixing block (5) is slidably connected to the inside of the fixing frame (4), and the side wall of the connecting rod (7) is slidably connected to the inside of the fixing frame (4).

8. The smoke control fire damper of claim 1, wherein: One end of the first spring (10) is fixedly connected to the side wall of the connecting rod (7), the other end of the first spring (10) is fixedly connected to the side wall of the sleeve (6), and the side wall of the second spring (11) is fixedly connected between the connecting rods (7).

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