Executing mechanism of fireproof smoke exhaust valve

Abstract

The utility model discloses an actuating mechanism of a fireproof smoke exhaust valve, which belongs to the technical field of safety engineering and comprises a smoke exhaust pipe, smoke exhaust grooves A are arranged at the front end and the rear end of the smoke exhaust pipe, the smoke exhaust grooves A are communicated with smoke exhaust grooves B arranged on the smoke exhaust pipe, two sides of the smoke exhaust pipe are connected with mounting components, and an opening and closing mechanism is arranged on the smoke exhaust pipe. The opening and closing mechanism comprises a stepping motor connected to the upper end of the smoke exhaust pipe, the output end of the stepping motor is connected with a rotating shaft, the rotating shaft is connected with a large gear, the large gear is meshed with a small gear A, one end, close to the smoke exhaust pipe, of the small gear A is connected with a rotating shaft A, the rotating shaft A is connected with a blocking plate A, and the small gear A is meshed with a small gear B; the end, close to the smoke exhaust pipe, of the pinion B is connected with a rotating shaft B which is connected with a barrier plate B. According to the utility model, the opening and closing angle of the smoke exhaust pipe can be adjusted completely through electric control, the angle can be changed quickly, and the smoke exhaust efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of safety engineering, in particular to an actuator of a fireproof smoke exhaust valve. Background Art

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and adjust and control the parameters (temperature, pressure, and flow) of the conveying medium. According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc. Valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metals, and radioactive media. Valves are also divided into cast iron valves, cast steel valves, stainless steel valves (201, 304, 316, etc.), chrome-molybdenum steel valves, chrome-molybdenum-vanadium steel valves, duplex steel valves, plastic valves, non-standard customized valves, etc. according to their materials; fire smoke exhaust valves are a fire protection component, generally installed on the pipeline of the mechanical smoke exhaust system. It meets the smoke leakage and fire resistance integrity requirements within a certain period of time, and plays a role in isolating smoke and preventing fire. Main materials: carbon steel, galvanized sheet, stainless steel;

[0003] Actuators use liquid, gas, electricity or other energy and convert it into a driving action through a motor, cylinder or other device. Basic actuators are used to drive valves to fully open or fully closed positions. Actuators used to control valves can accurately move valves to any position. Although most actuators are used to switch valves, today's actuator designs go far beyond simple switching functions. They include position sensing devices, torque sensing devices, electrode protection devices, logic control devices, digital communication modules and PID control modules, all of which are installed in a compact housing.

[0004] In the existing technology, there is a problem that the smoke exhaust valve opens slowly when performing the smoke exhaust action, which will result in the smoke exhaust action not being able to be performed quickly, and the smoke cannot be quickly dissipated. At the same time, it is easy to cause backflow during the smoke exhaust process. For this reason, we propose an actuator for a fire-proof smoke exhaust valve. Utility Model Content

[0005] The purpose of the utility model is to provide an actuator for a fire-proof smoke exhaust valve to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an actuator of a fireproof smoke exhaust valve, comprising a smoke exhaust pipe, wherein smoke exhaust grooves A are provided at both ends of the smoke exhaust pipe, the smoke exhaust groove A is connected to a smoke exhaust groove B provided on the smoke exhaust pipe, both sides of the smoke exhaust pipe are connected to mounting components, an opening and closing mechanism is provided on the smoke exhaust pipe, the opening and closing mechanism comprises a stepper motor connected to the upper end of the smoke exhaust pipe, the output end of the stepper motor is connected to a rotating shaft, the rotating shaft is connected to a large gear, the large gear is meshedly connected to a small gear A, the small gear A is connected to a rotating shaft A near one end of the smoke exhaust pipe, the rotating shaft A is connected to a blocking plate A, the small gear A is meshedly connected to a small gear B, the small gear B is connected to a rotating shaft B near one end of the smoke exhaust pipe, and the rotating shaft B is connected to a blocking plate B.

[0007] Preferably, the mounting assembly comprises mounting bars connected to both sides of the smoke exhaust pipe, and each mounting bar has two symmetrical mounting screw holes on its surface.

[0008] Preferably, a sealing strip is connected to the front end of the smoke exhaust pipe.

[0009] Preferably, the rotating shaft A and the rotating shaft B are both rotatably connected to the smoke exhaust pipe via bearings.

[0010] Preferably, the blocking plate A and the blocking plate B are both arranged in a semicircular shape, and the outer diameter size of the blocking plate A and the blocking plate B is matched with the inner diameter size of the smoke exhaust groove B.

[0011] Preferably, a protection box is connected to the upper end of the smoke exhaust pipe, and the protection box covers the large gear, small gear A and small gear B.

[0012] Preferably, the outer end surfaces of the blocking plate A and the blocking plate B are both rounded.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. A smoke exhaust pipe, a smoke exhaust slot A, a smoke exhaust slot B, an installation component, an opening and closing mechanism and a protective box are provided to complete the improvement of the smoke exhaust efficiency of the smoke exhaust pipe. At this time, the stepper motor can be powered, and the output end of the stepper motor drives the rotating shaft to rotate and then drives the large gear to rotate. The large gear drives the small gear A to speed up the rotation, and the small gear A drives the rotating shaft A to rotate and then drives the blocking plate A to adjust the angle. At this time, the small gear A drives the small gear B to rotate, and the small gear B drives the rotating shaft B to rotate and then drives the blocking plate B to adjust the angle. At this time, the blocking plate A and the blocking plate B rotate in opposite directions at the same time. The utility model realizes that the opening and closing angle of the smoke exhaust pipe can be adjusted completely by electric control, and the angle can be changed quickly, thereby improving the smoke exhaust efficiency.

[0015] 2. The sealing strip can be provided to achieve that after the device is installed through the installation assembly, the sealing strip is in close contact with the wall surface, thereby improving the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the opening and closing mechanism of the utility model.

[0019] In the figure: 1. Smoke exhaust pipe; 2. Smoke exhaust slot A; 3. Smoke exhaust slot B; 4. Installation assembly; 401. Installation strip; 402. Installation screw hole; 5. Sealing strip; 6. Opening and closing mechanism; 601. Stepping motor; 602. Rotating shaft; 603. Large gear; 604. Small gear A; 605. Rotating shaft A; 606. Blocking plate A; 607. Small gear B; 608. Rotating shaft B; 609. Blocking plate B; 7. Protective box. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 The utility model provides a technical solution: an actuator of a fireproof smoke exhaust valve, comprising a smoke exhaust pipe 1, a smoke exhaust groove A2 is provided at both ends of the smoke exhaust pipe 1, the smoke exhaust groove A2 is connected to a smoke exhaust groove B3 provided on the smoke exhaust pipe 1, both sides of the smoke exhaust pipe 1 are connected to mounting components 4, an opening and closing mechanism 6 is provided on the smoke exhaust pipe 1, the opening and closing mechanism 6 comprises a stepper motor 601 connected to the upper end of the smoke exhaust pipe 1, a rotating shaft 602 is connected to the output end of the stepper motor 601, the rotating shaft 602 is connected to a large gear 603, the large gear 603 is meshedly connected to a small gear A604, the small gear A604 is connected to a rotating shaft A605 near one end of the smoke exhaust pipe 1, the rotating shaft A605 is connected to a blocking plate A606, the small gear A604 is meshedly connected to a small gear B607, the small gear B607 is connected to a rotating shaft B608 near one end of the smoke exhaust pipe 1, and the rotating shaft B608 is connected to a blocking plate B609.

[0022] Specifically, the installation component 4 includes installation strips 401 connected to both sides of the smoke exhaust pipe 1, and each installation strip 401 has two symmetrical installation screw holes 402 on its surface; a sealing strip 5 is connected to the front end of the smoke exhaust pipe 1, and the sealing strip 5 can be provided to achieve that after the device is installed through the installation component 4, the sealing strip 5 is in close contact with the wall, thereby improving the sealing performance; the rotating shaft A605 and the rotating shaft B608 are both rotatably connected to the smoke exhaust pipe 1 through bearings; the blocking plate A606 and the blocking plate B609 are both semicircular in shape, and the outer diameter dimensions of the blocking plate A606 and the blocking plate B609 are matched with the inner diameter dimension of the smoke exhaust groove B3; a protective box 7 is connected to the upper end of the smoke exhaust pipe 1, and the protective box 7 covers the large gear 603, the small gear A604 and the small gear B607; the outer end faces of the blocking plate A606 and the blocking plate B609 are both rounded.

[0023] Working principle: when installing the device (the front end position in the figure is the rear end installation position in reality), the installation screw hole 402 can be aligned with the positioning hole on the wall, and then the external bolt can be tightened. At this time, the sealing strip 5 is in close contact with the wall. Next, when the exhaust efficiency of the exhaust pipe 1 needs to be improved, the stepper motor 601 can be powered. At this time, the output end of the stepper motor 601 drives the rotating shaft 602 to rotate and then drives the large gear 603 to rotate. The large gear 603 drives the small gear A604 to speed up and rotate. The small gear A60 4 drives the rotating shaft A605 to rotate and then drives the blocking plate A606 to adjust the angle. At this time, the small gear A604 drives the small gear B607 to rotate. At this time, the small gear B607 drives the rotating shaft B608 to rotate and then drives the blocking plate B609 to adjust the angle. At this time, the blocking plate A606 and the blocking plate B609 rotate in opposite directions at the same time. The utility model realizes that the opening and closing angle of the smoke exhaust pipe 1 can be adjusted completely by electric control, and the angle can be changed quickly, thereby improving the efficiency of smoke exhaust.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An actuator for a fireproof smoke exhaust valve, comprising a smoke exhaust pipe (1), characterized in that: The smoke exhaust pipe (1) is provided with a smoke exhaust groove A (2) at both the front and rear ends, the smoke exhaust groove A (2) is connected to a smoke exhaust groove B (3) provided on the smoke exhaust pipe (1), both sides of the smoke exhaust pipe (1) are connected to mounting components (4), an opening and closing mechanism (6) is provided on the smoke exhaust pipe (1), the opening and closing mechanism (6) comprises a stepping motor (601) connected to the upper end of the smoke exhaust pipe (1), the output end of the stepping motor (601) is connected to a rotating shaft (602), and the rotating shaft (602) is connected to a large Gear (603), the large gear (603) is meshedly connected with a small gear A (604), the small gear A (604) is connected to a rotating shaft A (605) at one end close to the smoke exhaust pipe (1), the rotating shaft A (605) is connected to a blocking plate A (606), the small gear A (604) is meshedly connected with a small gear B (607), the small gear B (607) is connected to a rotating shaft B (608) at one end close to the smoke exhaust pipe (1), and the rotating shaft B (608) is connected to a blocking plate B (609).

2. The fire smoke exhaust valve actuator according to claim 1, characterized in that: The installation assembly (4) comprises installation strips (401) connected to both sides of the smoke exhaust pipe (1), and each installation strip (401) has two symmetrical installation screw holes (402) formed on its surface.

3. The actuator of a fire smoke exhaust valve according to claim 1, characterized in that: The front end of the smoke exhaust pipe (1) is connected to a sealing strip (5).

4. The fireproof smoke exhaust valve actuator according to claim 1, characterized in that: The rotating shaft A (605) and the rotating shaft B (608) are both rotatably connected to the smoke exhaust pipe (1) via bearings.

5. The fire smoke exhaust valve actuator according to claim 1, characterized in that: The blocking plate A (606) and the blocking plate B (609) are both arranged in a semicircular shape, and the outer diameters of the blocking plate A (606) and the blocking plate B (609) are arranged to match the inner diameter of the smoke exhaust groove B (3).

6. The actuator of a fireproof smoke exhaust valve according to claim 1, characterized in that: The upper end of the smoke exhaust pipe (1) is connected to a protection box (7), and the protection box (7) covers the large gear (603), the small gear A (604) and the small gear B (607).

7. The actuator of a fire smoke exhaust valve according to claim 1, characterized in that: The outer end surfaces of the blocking plate A (606) and the blocking plate B (609) are both rounded.

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