Alarm smoke exhaust valve for ventilation pipe

Abstract

The alarm smoke exhaust valve for the ventilation pipe particularly relates to the technical field of smoke exhaust valves and comprises a square valve body, a supporting installation frame is arranged at the upper end of the square valve body, and circular installation grooves are formed in the two sides of the outer end face of the square valve body. A square mounting groove is formed in the outer end face of the square valve body and located on the outer side of the circular mounting groove, and a smoke sensing fire detector and a temperature sensing fire detector are correspondingly arranged on the two sides of the square valve body and located in the circular mounting groove. According to the utility model, during actual use, the circular mounting groove, the square mounting groove and the limiting mounting plate are correspondingly arranged, so that the mounting and dismounting convenience of the smoke-sensitive fire detector and the temperature-sensitive fire detector can be effectively improved, thereby facilitating the maintenance and cleaning of the smoke-sensitive fire detector and the temperature-sensitive fire detector; therefore, the influence of dust and impurities accumulated in the flue during long-term work on the work of the smoke-sensing fire detector and the temperature-sensing fire detector is avoided.

Description

Technical Field

[0001] This utility model relates to the field of smoke exhaust valve technology, and more specifically, to an alarm smoke exhaust valve for ventilation pipes. Background Technology

[0002] Smoke exhaust valves are installed at the ends of each branch pipe (smoke inlet) of the mechanical smoke exhaust system. Normally, they are closed and meet air leakage requirements. In case of fire or when smoke exhaust is needed, the valves are opened manually or electrically to perform the smoke exhaust function. For example, patent CN214274606U discloses an alarm smoke exhaust valve for ventilation ducts. The duct is connected to the exhaust duct. When smoke is abundant, a miniature telescopic motor pushes the telescopic shaft to extend and retract the movable buckle. Simultaneously, a fixing block is fixed to the lower end of the valve cover. The valve cover can be unlocked by connecting the switch buckle and the fixing block. After the valve cover is unlocked, the spring rebounds, opening the valve cover. The spring also has a reverse elastic force to prevent the valve cover from rebounding after opening. Meanwhile, a rotary motor is connected to the controller via a signal line. When the smoke sensor detects excessively high smoke concentration, the miniature telescopic motor and the rotary motor work together. The synchronous rotary motor starts to accelerate smoke exhaust, driving the fan to rotate. The suction generated by the fan's rotation expels the smoke from inside the duct, increasing the smoke exhaust force and efficiency, and making air circulation faster.

[0003] When the above-mentioned device is in use, the ventilation duct alarm smoke exhaust valve is fixedly connected to the support rod through the mounting support plate. It can be fixed in the middle of the smoke exhaust valve body, so that the components installed on the upper end of the support rod will not fall off. At the same time, it also enhances the pressure resistance of the smoke exhaust valve body. During long-term use, dust is easy to accumulate in the internal components of the pipeline, and they need to be disassembled and cleaned regularly. However, disassembling the components is relatively cumbersome, which causes inconvenience to the cleaning and maintenance of the internal components of the pipeline. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an alarm smoke exhaust valve for ventilation ducts. The technical problem to be solved by the present invention is: how to increase the convenience of installation and disassembly of the smoke exhaust alarm detector.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an alarm smoke exhaust valve for ventilation ducts, comprising a square valve body, a support mounting bracket at the upper end of the square valve body, circular mounting grooves on both sides of the outer end face of the square valve body, a square mounting groove outside the circular mounting groove on the outer end face of the square valve body, and smoke detectors and heat detectors correspondingly provided inside the circular mounting grooves on both sides of the square valve body.

[0006] The outer end face of the smoke detector and the heat detector is provided with a limiting mounting plate. The outer end face of the square valve body is provided with a sealing plate. The upper side of the outer end face of the sealing plate is provided with a U-shaped locking block. The outer end of the square valve body is provided with an adjusting threaded rod on the upper side of the circular mounting groove.

[0007] In a preferred embodiment, the upper end of the support mounting bracket is provided with a servo motor, and both sides of the lower end of the servo motor are provided with mounting ears.

[0008] In a preferred embodiment, the output shaft of the servo motor passes through the end face of the support mounting bracket and extends into the interior of the support mounting bracket, wherein the output shaft of the servo motor is provided with a rotating support rod inside the support mounting bracket.

[0009] In a preferred embodiment, the rotating support rod passes through the end face of the square valve body and extends into the interior of the square valve body, and the outer end face of the rotating support rod is provided with a smoke exhaust side plate inside the square valve body.

[0010] In a preferred embodiment, the outer end face of the rotating support rod is provided with an adjusting connecting plate inside the support mounting frame, and a series plate is provided on the outer side of the upper end of the adjusting connecting plate.

[0011] In a preferred embodiment, a rotating insert shaft is provided at the connection between the series plate and the adjusting connecting plate, and limiting strips are provided on both sides of the inner end face of the square valve body. A connecting hinge is provided at the connection between the sealing plate and the square valve body, and a locking knob is provided on the outside of the U-shaped locking block.

[0012] In a preferred embodiment, the inner end face of the circular mounting groove is adapted to the outer end face of the smoke detector and the heat detector, the inner end face of the square mounting groove is adapted to the outer end face of the limiting mounting plate, and both the smoke detector and the heat detector are electrically connected to external control equipment.

[0013] In a preferred embodiment, the outer end face of the adjusting threaded rod is connected to the inner end face of the locking knob by a thread, the servo motor is electrically connected to an external control device, and the smoke exhaust side plate is set in a wave-like state when viewed from above.

[0014] In a preferred embodiment, both the adjusting connecting plate and the series plate are arranged in a curved state when viewed from above.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] In actual use, the corresponding arrangement of the circular mounting slot, the square mounting slot and the limiting mounting plate can effectively increase the ease of installation and disassembly of smoke detectors and heat detectors, thereby facilitating the maintenance and cleaning of smoke detectors and heat detectors, and preventing the long-term accumulation of dust and impurities inside the flue from affecting the operation of smoke detectors and heat detectors.

[0017] Meanwhile, with the sealing plate, locking knob, connecting hinge, and U-shaped locking block in their corresponding positions, the sealing plate can press the limiting mounting plate together, and the locking knob can be rotated to lock and fix the adjusting threaded rod, thereby effectively increasing the sealing performance of the smoke detector and heat detector installation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the internal structure of the square valve body of this utility model.

[0020] Figure 3 This is a schematic diagram of the overall top view cross-sectional structure of this utility model.

[0021] Figure 4 This is a schematic diagram of the detector installation structure of this utility model.

[0022] The attached figures are labeled as follows: 1. Square valve body; 2. Support mounting bracket; 3. Servo motor; 4. Mounting ear plate; 5. Sealing plate; 6. Rotary support rod; 7. Adjusting connecting plate; 8. Series plate; 9. Rotary insert shaft; 10. Smoke exhaust side plate; 11. Limiting stop bar; 12. Smoke detector; 13. Heat detector; 14. Locking knob; 15. Circular mounting groove; 16. Square mounting groove; 17. Limiting mounting plate; 18. Connecting hinge; 19. Adjusting threaded rod; 20. U-shaped locking block. Detailed Implementation

[0023] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided so that the description of this disclosure will be more complete and fully convey the concept of the exemplary embodiments to those skilled in the art. The drawings are merely illustrative of this disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted.

[0024] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more exemplary embodiments. Numerous specific details are provided in the following description to give a full understanding of exemplary embodiments of this disclosure. However, those skilled in the art will recognize that the technical solutions of this disclosure can be practiced with one or more of the specific details omitted, or other methods, components, steps, etc., can be employed. In other instances, well-known structures, methods, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this disclosure.

[0025] This utility model provides an alarm smoke exhaust valve for ventilation ducts, such as... Figure 1 and Figure 2 As shown, it includes a square valve body 1, a support mounting bracket 2 at the upper end of the square valve body 1, a sealing plate 5 on the outer side of the end face of the square valve body 1, and a servo motor 3 at the upper end of the support mounting bracket 2, which can conveniently support the servo motor 3 through the support mounting bracket 2 to ensure the stability of the servo motor 3 in operation.

[0026] The servo motor 3 has mounting ear plates 4 on both sides of its lower end. The output shaft of the servo motor 3 passes through the end face of the support mounting frame 2 and extends into the interior of the support mounting frame 2. The output shaft of the servo motor 3 has a rotating support rod 6 inside the support mounting frame 2.

[0027] The rotating support rod 6 passes through the end face of the square valve body 1 and extends into the interior of the square valve body 1. The outer end face of the rotating support rod 6 is provided with a smoke exhaust side plate 10 inside the square valve body 1. The outer end face of the rotating support rod 6 is provided with an adjustment connecting plate 7 inside the support mounting frame 2.

[0028] The upper outer side of the adjusting connecting plate 7 is provided with a series plate 8. The connection between the series plate 8 and the adjusting connecting plate 7 is provided with a rotating insert shaft 9. The servo motor 3 is electrically connected to the external control device. The operator can drive the servo motor 3 to work through the external control device. It will drive the rotating support rod 6 to rotate through the output shaft. When the rotating support rod 6 rotates, it will drive the adjusting connecting plate 7 to rotate. Thus, through the series plate 8 and the rotating insert shaft 9, the remaining adjusting connecting plates 7 will be driven to adjust the angle, thereby opening multiple smoke exhaust side plates 10 to facilitate the exhaust of smoke.

[0029] The exhaust side plate 10 is wavy in the top view, and the adjusting connecting plate 7 and the series plate 8 are both curved in the top view.

[0030] like Figure 3 and Figure 4As shown, circular mounting grooves 15 are provided on both sides of the outer end face of the square valve body 1, and a square mounting groove 16 is provided on the outer side of the circular mounting groove 15 on the outer end face of the square valve body 1. Smoke detectors 12 and heat detectors 13 are respectively provided on both sides of the square valve body 1 inside the circular mounting groove 15.

[0031] The outer end faces of the smoke detector 12 and the heat detector 13 are provided with limiting mounting plates 17, which can facilitate the installation of the smoke detector 12 and the heat detector 13 inside the circular mounting grooves 15 on both sides of the square valve body 1, and the limiting mounting plates 17 are snapped into the inside of the square mounting grooves 16, thereby effectively increasing the stability of the installation of the smoke detector 12 and the heat detector 13. The upper side of the outer end face of the sealing plate 5 is provided with a U-shaped locking block 20, and the outer end of the square valve body 1 is provided with an adjusting threaded rod 19 on the upper side of the circular mounting groove 15.

[0032] Limiting stops 11 are provided on both sides of the inner end face of the square valve body 1. A connecting hinge 18 is provided at the connection between the sealing plate 5 and the square valve body 1, which can support the sealing plate 5 and facilitate the rotation of the sealing plate 5. A locking knob 14 is provided on the outside of the U-shaped locking block 20. After the smoke detector 12 and the heat detector 13 are installed, the operator can flip the sealing plate 5 over to cover the limiting mounting plate 17, and then adjust the adjusting threaded rod 19 and lock the adjusting threaded rod 19 inside the U-shaped locking block 20.

[0033] The inner end face of the circular mounting groove 15 is adapted to the outer end face of the smoke detector 12 and the heat detector 13, and the inner end face of the square mounting groove 16 is adapted to the outer end face of the limiting mounting plate 17.

[0034] Both the smoke detector 12 and the heat detector 13 are electrically connected to external control equipment. The outer end face of the adjusting threaded rod 19 is connected to the inner end face of the locking knob 14 by a thread. Then, the operator can put the locking knob 14 on the outer end face of the adjusting threaded rod 19. When rotated, the adjusting threaded rod 19 can be locked by the locking knob 14, so that the locking knob 14 presses the U-shaped locking block 20, thereby pressing the sealing plate 5 against the outer end face of the limiting mounting plate 17, effectively increasing the sealing and stability of the smoke detector 12 and the heat detector 13 installation.

[0035] Finally, it should be noted that: the accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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. An alarm smoke exhaust valve for ventilation ducts, comprising a square valve body (1), characterized in that: The upper end of the square valve body (1) is provided with a support mounting bracket (2), and the outer end face of the square valve body (1) is provided with circular mounting grooves (15) on both sides. The outer end face of the square valve body (1) is provided with a square mounting groove (16) outside the circular mounting groove (15). The two sides of the square valve body (1) are provided with smoke detectors (12) and heat detectors (13) inside the circular mounting grooves (15). The outer end faces of the smoke detector (12) and the heat detector (13) are provided with limiting mounting plates (17), the outer end face of the square valve body (1) is provided with a sealing plate (5), the upper side of the outer end face of the sealing plate (5) is provided with a U-shaped locking block (20), and the outer end of the square valve body (1) is provided with an adjusting threaded rod (19) on the upper side of the circular mounting groove (15).

2. The alarm smoke exhaust valve for ventilation ducts according to claim 1, characterized in that: The upper end of the support mounting bracket (2) is provided with a servo motor (3), and the lower end of the servo motor (3) is provided with mounting ear plates (4) on both sides.

3. The alarm smoke exhaust valve for ventilation ducts according to claim 2, characterized in that: The output shaft of the servo motor (3) passes through the end face of the support mounting bracket (2) and extends into the interior of the support mounting bracket (2). The output shaft of the servo motor (3) is provided with a rotating support rod (6) inside the support mounting bracket (2).

4. The alarm smoke exhaust valve for ventilation ducts according to claim 3, characterized in that: The rotating support rod (6) passes through the end face of the square valve body (1) and extends into the interior of the square valve body (1). The outer end face of the rotating support rod (6) is provided with a smoke exhaust side plate (10) inside the square valve body (1).

5. The alarm smoke exhaust valve for ventilation ducts according to claim 3, characterized in that: The outer end face of the rotating support rod (6) is provided with an adjusting connecting plate (7) inside the support mounting frame (2), and the outer side of the upper end of the adjusting connecting plate (7) is provided with a series plate (8).

6. The alarm smoke exhaust valve for ventilation ducts according to claim 5, characterized in that: A rotating insert shaft (9) is provided at the connection between the series plate (8) and the adjusting connecting plate (7). Limiting stops (11) are provided on both sides of the inner end face of the square valve body (1). A connecting hinge (18) is provided at the connection between the sealing plate (5) and the square valve body (1). A locking knob (14) is provided on the outside of the U-shaped locking block (20).

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