CN210221486U - Reliability test device of fire prevention blast gate - Google Patents
Reliability test device of fire prevention blast gate Download PDFInfo
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- CN210221486U CN210221486U CN201921290034.3U CN201921290034U CN210221486U CN 210221486 U CN210221486 U CN 210221486U CN 201921290034 U CN201921290034 U CN 201921290034U CN 210221486 U CN210221486 U CN 210221486U
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Abstract
The utility model discloses a reliability test device of a fireproof air valve, which is characterized in that a cam is arranged on a transmission main shaft, and a driving gear is arranged on the right side of the cam; a travel switch is arranged below the cam, and an electromagnet is arranged below the travel switch; the fire-proof air valve is fixed on the right side of the frame through a valve body fixing pressure plate, an actuator is arranged on the left side of the fire-proof air valve, an air valve main shaft of the fire-proof air valve penetrates through the actuator, and a driven gear is arranged on the air valve main shaft; the air valve main shaft is arranged in parallel with the transmission main shaft, and a driving gear on the transmission main shaft is meshed with a driven gear on the air valve main shaft; the actuator is provided with an actuator inhaul cable, and the lower end of the actuator inhaul cable is connected with the electromagnet pull rod. The device has the advantages of reasonable structure, good stability, convenient operation, labor saving in the test process, greatly reduced labor intensity and saved test cost; the test efficiency and the test accuracy are improved, and the human interference factors are eliminated.
Description
Technical Field
The utility model relates to a field of fire prevention blast gate especially relates to a reliability test device of fire prevention blast gate.
Background
The marine fire-proof air valve is an air valve which is arranged in a ventilating duct and is automatically closed after receiving the temperature of high-temperature gas from a fire alarm area, is normally in an open state, is automatically closed when the temperature of the gas in the pipeline reaches 70 ℃ when a fire disaster happens, meets the requirements of fire-resistant stability and fire-resistant integrity within a certain time, plays the roles of isolating fire smoke and preventing the fire disaster from spreading, protects the personal safety of crews, and reduces property loss. The requirements for the test of the reliability of closure according to the CB/T3557-1995 "fire damper for ships" standard are as follows: in 250 closing operations, the test piece should be able to be closed flexibly and reliably from the open position without significant wear, deformation, fracture and other damage affecting its sealing properties. In order to meet the test requirements in the standard, the existing test for the closing reliability of the fireproof air valve is completed manually, so that the labor intensity is high, the occupied manpower is high, the artificial interference factors are high, and the efficiency is not high.
Disclosure of Invention
The utility model aims at providing a reliability test device of a fireproof air valve, which has reasonable structure, convenient operation, time saving and labor saving; the technical problem is solved.
In order to realize the technical purpose, reach foretell technical requirement, the utility model discloses the technical scheme who adopts is: a reliability test device for a fireproof air valve comprises a frame and an electric appliance control box; a motor is arranged on the left side of the rack, a bearing support with a seat is arranged above the motor, and a bearing of the transmission main shaft is arranged on the bearing support with the seat; the motor is connected with the transmission main shaft through a belt pulley device; the method is characterized in that: the transmission main shaft is provided with a cam, and the right side of the cam is provided with a driving gear; a travel switch is arranged below the cam, and an electromagnet is arranged below the travel switch; the fire-proof air valve is fixed on the right side of the frame through a valve body fixing pressure plate, an actuator is arranged on the left side of the fire-proof air valve, an air valve main shaft of the fire-proof air valve penetrates through the actuator, and a driven gear is arranged on the air valve main shaft; the air valve main shaft is arranged in parallel with the transmission main shaft, and a driving gear on the transmission main shaft is meshed with a driven gear on the air valve main shaft; the actuator is provided with an actuator inhaul cable, and the lower end of the actuator inhaul cable is connected with the electromagnet pull rod.
Preferably: and a rocker arm is arranged above the travel switch.
Preferably: a pulley support is arranged below the transmission main shaft, a pulley is arranged on the pulley support, and an actuator cable bypasses the pulley to form a right angle.
Preferably: the teeth of the driving gear are distributed on the quarter circumference of the gear.
Preferably: the travel switch is connected with a relay in the electric appliance control box through an electric signal.
The utility model has the advantages that; a reliability test device for a fireproof air valve is characterized in that a driving gear is arranged on a transmission main shaft; a driven gear is arranged on the air valve main shaft; a driving gear on the transmission main shaft is meshed with a driven gear on the air valve main shaft; the driving gear is only 1/4 circles with teeth, the rest are smooth circles, the driving gear and the driven gear are smoothly separated, the transmission range is 90 degrees, when the driving gear drives the driven gear to rotate 90 degrees with the actuator main shaft, the valve plate is opened, after the driving gear rotates 90 degrees, the driving gear and the driven gear are separated, the cam starts to strike the rocker arm on the travel switch after the transmission main shaft continues to rotate 45 degrees, and therefore the actuator manual reset inhaul cable is triggered, the fire damper valve plate rotates 90 degrees anticlockwise, and the fire damper valve plate returns to the closed state; the utility model has reasonable structure, good stability and convenient operation, saves manpower in the test process, greatly reduces the labor intensity and saves the test cost; the test efficiency and the test accuracy are improved, and the human interference factors are eliminated.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a sectional view taken along line A-A of the present invention;
FIG. 3 is a sectional view of the present invention taken along line B-B;
in the figure: 1. a frame; 2. an electrical appliance control box; 3. a motor; 4. a pedestal bearing support; 5. a transmission main shaft; 6. a cam; 7. a driving gear; 8. a travel switch; 9. an electromagnet; 10. a fire damper; 11. the valve body fixes the pressing plate; 12. an actuator; 13. a main shaft of the air valve; 14. a driven gear; 15. the actuator is pulled to be locked; 16. an electromagnet pull rod; 17. a rocker arm; 18. a pulley bracket; 19. a pulley.
Detailed Description
In order to make the object, technical solution and beneficial technical effects of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments;
in the drawings: a reliability test device of a fireproof air valve comprises a frame 1 and an electric appliance control box 2; a motor 3 is arranged on the left side of the frame 1, a bearing support 4 with a seat is arranged above the motor 3, and a bearing of a transmission main shaft 5 is arranged on the bearing support 4 with the seat; the motor 3 is connected with a transmission main shaft 5 through a belt pulley device 6; the method is characterized in that: a cam 6 is arranged on the transmission main shaft 5, and a driving gear 7 is arranged on the right side of the cam 6; a travel switch 8 is arranged below the cam 6, and an electromagnet 9 is arranged below the travel switch 8; the fire damper 10 is fixed on the right side of the frame 1 through a valve body fixing pressure plate 11, an actuator 12 is arranged on the left side of the fire damper 10, a damper main shaft 13 of the fire damper 10 penetrates through the actuator 12, and a driven gear 14 is arranged on the damper main shaft 13; the air valve main shaft 13 is arranged in parallel with the transmission main shaft 5, and a driving gear 7 on the transmission main shaft 5 is meshed with a driven gear 14 on the air valve main shaft 13; the actuator 12 is provided with an actuator cable 15, and the lower end of the actuator cable 15 is connected with an electromagnet pull rod 16.
A rocker arm 17 is arranged above the travel switch 8; a pulley bracket 18 is arranged below the transmission main shaft 5, a pulley 19 is arranged on the pulley bracket 18, and an actuator cable 15 winds around the pulley 19 to form a right angle; the teeth of the driving gear 7 are distributed on the quarter circumference of the gear; the travel switch 8 is connected with a relay in the electric appliance control box 2 through an electric signal.
The utility model discloses a concrete implementation: the reliability test of the fireproof air valve comprises the following steps:
1) electrifying the reliability test device of the marine fireproof air valve for idle running, determining that no fault exists in the electric appliance and the mechanical part and each function is normal, and then stopping the machine;
2) placing the manufactured and qualified marine fireproof air valve on a test device platform, determining the position, then pressing the position by using four pressing plates and bolts and nuts, then installing a driven gear on an actuator main shaft, and fastening the driven gear by using an inner hexagon screw;
3) sequentially penetrating the stay cable of the actuator of the fireproof air valve through the two pulleys, and then connecting the stay cable to the pull rod of the electromagnet, wherein the connection is reliable;
4) the test device is started, the motor operates, the transmission main shaft synchronously operates through belt pulley and belt transmission, and the driving gear on the transmission main shaft drives the driven gear on the air valve main shaft to operate, so that the valve plate rotating shaft and the fireproof air valve plate rotate, and the fireproof air valve is changed from a closed state to an open state. When the valve plate of the fireproof air valve is opened from 0 degree to 90 degrees vertically, the transmission main shaft continues to operate, but the driving gear and the driven gear are in a disengaged state and are not transmitted, the valve plate of the fireproof air valve stops being continuously opened, meanwhile, a cam on the transmission main shaft rotates and contacts a rocker arm on a stroke switch to enable the rocker arm to swing to a certain angle, at the moment, the stroke switch sends an electric signal to a relay in an electric appliance control box of a test device, then a relay controls an electromagnet to be electrified to generate an electromagnetic field, an electromagnet pull rod moves downwards, the electromagnet pull rod is connected with an actuator pull rope, the actuator pull rope simultaneously moves along with the electromagnet pull rod to trigger a manual actuator resetting mechanism, so that the valve plate of the fireproof air valve rotates, the fireproof air valve is reset to a closed state, at the moment, the reliability test action period of the fireproof air valve is completed, the operation is stopped after the predetermined number of tests is reached.
The main principle of the disengagement is that the driving gear is only 1/4 circles with teeth, and the rest are smooth circles, so that only 90-degree positions can be transmitted; the mutual position relation of the cam and the travel switch is shown in a fixed attached figure 2, the relative angle between the cam and the driving gear is 135 degrees, when the driving gear drives the driven gear and the actuator main shaft to rotate for 90 degrees, the valve plate is opened, the driving gear and the driven gear are separated after the driving gear rotates for more than 90 degrees, the cam starts to strike the rocker arm on the travel switch after the transmission main shaft continues to rotate for 45 degrees, and therefore the actuator is triggered to manually reset the inhaul cable, the fire damper valve plate rotates for 90 degrees anticlockwise, and the fire damper valve plate returns to a closed.
The electric appliance control part of the test device is provided with motor overload protection to prevent the motor from being damaged due to overload operation; the electric appliance control part of the testing device is provided with a counter which can set and record the test operation times, and the device automatically stops the test after the required test times are met according to standard regulations.
The automation of the reliability test operation process of the fireproof air valve is realized, manual intervention is not needed, the operation is automatically stopped after the specified test times are reached, and the operation process of the test device meets various requirements specified by the standard; the labor is saved, the labor intensity is reduced, and the test cost is saved; the test efficiency and the test accuracy are improved, and the human interference factors are eliminated.
The foregoing examples are given for the purpose of illustrating the present invention in a clear and non-restrictive manner, and it will be apparent to those skilled in the art that variations and modifications of the present invention may be made in other variations and modifications based on the foregoing description, and it is not necessary or necessary to exhaustively enumerate all embodiments, and all such variations and modifications as are obvious and desirable in the art are within the scope of the present invention.
Claims (5)
1. A reliability test device for a fireproof air valve comprises a rack (1) and an electric appliance control box (2); a motor (3) is arranged on the left side of the rack (1), a bearing support (4) with a seat is arranged above the motor (3), and a bearing of the transmission main shaft (5) is arranged on the bearing support (4) with the seat; the motor (3) is connected with the transmission main shaft (5) through a belt pulley device; the method is characterized in that: a cam (6) is arranged on the transmission main shaft (5), and a driving gear (7) is arranged on the right side of the cam (6); a travel switch (8) is arranged below the cam (6), and an electromagnet (9) is arranged below the travel switch (8); the fire-proof air valve (10) is fixed on the right side of the frame (1) through a valve body fixing pressure plate (11), an actuator (12) is arranged on the left side of the fire-proof air valve (10), an air valve main shaft (13) of the fire-proof air valve (10) penetrates through the actuator (12), and a driven gear (14) is arranged on the air valve main shaft (13); the air valve main shaft (13) is arranged in parallel with the transmission main shaft (5), and a driving gear (7) on the transmission main shaft (5) is meshed with a driven gear (14) on the air valve main shaft (13); an actuator inhaul cable (15) is arranged on the actuator (12), and the lower end of the actuator inhaul cable (15) is connected with an electromagnet pull rod (16).
2. The reliability test device of the fire damper as claimed in claim 1, wherein: a rocker arm (17) is arranged above the travel switch (8).
3. The reliability test device of the fire damper as claimed in claim 1, wherein: a pulley support (18) is arranged below the transmission main shaft (5), a pulley (19) is arranged on the pulley support (18), and an actuator inhaul cable (15) winds around the pulley (19) to form a right angle.
4. The reliability test device of the fire damper as claimed in claim 1, wherein: the teeth of the driving gear (7) are distributed on the quarter circumference of the gear.
5. The reliability test device of the fire damper as claimed in claim 1, wherein: the travel switch (8) is connected with a relay in the electric appliance control box (2) through an electric signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921290034.3U CN210221486U (en) | 2019-08-10 | 2019-08-10 | Reliability test device of fire prevention blast gate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921290034.3U CN210221486U (en) | 2019-08-10 | 2019-08-10 | Reliability test device of fire prevention blast gate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210221486U true CN210221486U (en) | 2020-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921290034.3U Active CN210221486U (en) | 2019-08-10 | 2019-08-10 | Reliability test device of fire prevention blast gate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210221486U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113155441A (en) * | 2021-04-06 | 2021-07-23 | 郭堂培 | Durability detection system and method for air valve for chemical industry |
| CN116698396A (en) * | 2023-07-21 | 2023-09-05 | 江苏科力博自动化设备有限公司 | Rechargeable fireproof valve opening and closing test device and method |
-
2019
- 2019-08-10 CN CN201921290034.3U patent/CN210221486U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113155441A (en) * | 2021-04-06 | 2021-07-23 | 郭堂培 | Durability detection system and method for air valve for chemical industry |
| CN116698396A (en) * | 2023-07-21 | 2023-09-05 | 江苏科力博自动化设备有限公司 | Rechargeable fireproof valve opening and closing test device and method |
| CN116698396B (en) * | 2023-07-21 | 2023-11-28 | 江苏科力博自动化设备有限公司 | Chargeable fire prevention valve switching test device |
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