Detection device for oil smoke exhaust fireproof check valve

Abstract

The utility model discloses an oil smoke exhaust fireproof check valve detection device, and relates to the fireproof check valve technology field, and the oil smoke exhaust fireproof check valve detection device comprises a detection bench and a conical sealing ring I. The right side of the top of the detection bench is provided with a fixed seat I, the right side of the fixed seat I is provided with a servo motor, and the external part of a positive and negative tooth screw rod is connected with a screw rod nut. A first water conveying pipe is arranged in the middle of the movable base in a penetrating mode, and the other end of the telescopic pipe is connected with a three-way pipe. According to the detection device for the oil smoke exhaust fireproof check valve, a servo motor drives a positive and negative tooth screw rod to rotate, so that two screw rod nuts respectively drive a moving seat to horizontally move back to back along the outer part of the positive and negative tooth screw rod until the fireproof check valve is respectively clung to a conical sealing ring I and a conical sealing ring II; and wind energy generated by the air blower during working is fed into the fireproof check valves in the closed state through the three-way pipe, the telescopic pipe and the first water conveying pipe, the effect of detecting the two fireproof check valves at a time is achieved, and the detection efficiency is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire-proof check valves, in particular to a detection device for an exhaust smoke fire-proof check valve. Background Art

[0002] Exhaust fume fire check valve is used for residential exhaust duct and range hood exhaust. It is usually installed on the upper part of the exhaust outlet on the side of the exhaust duct. It has the function of preventing smoke backflow and guiding the air upward. At present, in order to avoid the gap between the valve and the installation shell, the sealing of the fire check valve needs to be tested by the detection device.

[0003] For example, the utility model with application number CN202020858802.7 discloses a sealing detection device for exhaust smoke fire check valves. The utility model achieves the advantage of fixed detection of fire check valves of different sizes through the coordination between the blower, air supply pipe, fixed clamp, movable clamp, hose, air outlet pipe, first cylinder, placement plate, sink and installation cavity, and solves the problem that the existing production mechanism does not have the ability to detect them and thus cannot meet the needs. However, only one fire check valve can be detected at a time, and the detection efficiency is low, which affects the overall production efficiency.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and an exhaust fume fire check valve detection device is proposed. Utility Model Content

[0005] The utility model aims to provide a detection device for an oil exhaust smoke fire prevention check 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 exhaust smoke fire check valve detection device, comprising a detection platform and a conical sealing ring 1, a fixed seat 1 is arranged on the top right side of the detection platform, and a fixed seat 2 is arranged on the top left side of the detection platform, a servo motor is installed on the upper right side of the fixed seat 1, and the output end of the servo motor passes through the fixed seat 1 and is connected with a positive and negative threaded rod, the outside of the positive and negative threaded rod is connected with a screw nut, and a movable seat is arranged at the bottom of the screw nut, a water pipe 1 is penetrated in the middle of the movable seat, and a telescopic tube is connected to the side of the water pipe 1 close to the vertical central axis of the detection platform, the other end of the telescopic tube is connected to a three-way pipe, and the bottom of the three-way pipe is connected to a blower, the conical sealing ring 1 is arranged on the outside of the water pipe 1, the inside of the fixed seat 1 and the fixed seat 2 is penetrated with a water pipe 2, and the outside of the water pipe 2 is sleeved with a conical sealing ring 2, and the end of the water pipe 2 is connected to a water tank.

[0007] Furthermore, the fixing seat 1 and the fixing seat 2 are symmetrically distributed with respect to the top center position of the testing platform, and the blower is arranged in the middle of the front end of the testing platform.

[0008] Furthermore, the forward and reverse threaded rods and the movable seat are perpendicular to each other, and the movable seat and the conical sealing ring are fixedly connected.

[0009] Furthermore, the water delivery pipe 1, the telescopic pipe, the three-way pipe and the blower are interconnected, and two water delivery pipes and two telescopic pipes are provided respectively.

[0010] Furthermore, there are two conical sealing rings 1 and 2, respectively, and the conical sealing rings 1 and 2 are coaxially arranged.

[0011] Furthermore, the water tank is arranged on both sides of the bottom of the testing platform, and the second water delivery pipe and the water tank are connected to each other.

[0012] Furthermore, a sound amplifier and a high-definition camera are respectively installed on the inner top of the water tank, and a display screen is installed on the top of the fixing seat 1 and the fixing seat 2.

[0013] Furthermore, a water inlet is provided on an upper side of the water tank, and a water outlet is provided on a lower side of the water tank.

[0014] The utility model provides a detection device for an oil exhaust smoke fire prevention check valve, which has the following beneficial effects:

[0015] 1. The servo motor of the utility model drives the forward and reverse threaded screws to rotate, so that the two screw nuts each drive a moving seat to perform opposite horizontal displacements along the outside of the forward and reverse threaded screws until the fire check valve is respectively in close contact with the conical sealing ring 1 and the conical sealing ring 2, so that the wind energy generated by the blower is sent into the closed fire check valve through the three-way pipe, the telescopic pipe and the water pipe 1, so as to achieve the effect of testing two fire check valves at one time, and significantly improve the detection efficiency.

[0016] 2. The high-definition camera of the utility model is electrically connected to the display screen. Personnel can observe the internal situation of the water tank through the display screen. At the same time, the bubble sound emitted is amplified and released through the sound amplifier, which is helpful for personnel to judge the air tightness of the fire check valve, avoid the problem of missed detection due to unclear bubbles, and ensure the accuracy of the detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of an exhaust smoke fire check valve detection device of the utility model;

[0018] Figure 2 It is a three-dimensional structural diagram of a movable seat of a detection device for an exhaust gas fire check valve of the utility model;

[0019] Figure 3 The utility model is a schematic diagram of the cross-sectional structure of a water tank of an oil smoke exhaust fire check valve detection device.

[0020] In the figure: 1. test table; 2. fixed seat 1; 3. fixed seat 2; 4. servo motor; 5. positive and negative threaded screw; 6. screw nut; 7. movable seat; 8. water pipe 1; 9. telescopic tube; 10. conical sealing ring 1; 11. three-way pipe; 12. blower; 13. conical sealing ring 2; 14. water pipe 2; 15. water tank; 16. sound amplifier; 17. high-definition camera; 18. display screen; 19. water inlet; 20. drain outlet. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0022] like Figure 1 and Figure 2 As shown, an exhaust smoke fire check valve detection device includes a detection platform 1 and a conical sealing ring 10, a fixed seat 2 is arranged on the top right side of the detection platform 1, and a fixed seat 2 is arranged on the top left side of the detection platform 1, the fixed seat 2 and the fixed seat 23 are symmetrically distributed about the top center position of the detection platform 1, and a blower 12 is arranged in the middle of the front end of the detection platform 1, a servo motor 4 is installed on the upper right side of the fixed seat 2, and the output end of the servo motor 4 passes through the fixed seat 2 and is connected with a positive and negative threaded screw 5, the outside of the positive and negative threaded screw 5 is connected with a screw nut 6, and a moving seat 7 is arranged at the bottom of the screw nut 6, a water pipe 8 is passed through the middle of the moving seat 7, and a telescopic pipe 9 is connected to the side of the water pipe 8 close to the vertical central axis of the detection platform 1, and the telescopic pipe 9 is connected to the side of the water pipe 8 close to the vertical central axis of the detection platform 1. The other end of the reduction tube 9 is connected to a tee 11, and the bottom of the tee 11 is connected to a blower 12, a conical sealing ring 10 is arranged on the outside of the water pipe 18, a water pipe 2 14 is penetrated inside the fixed seat 12 and the fixed seat 23, and a conical sealing ring 2 13 is sleeved on the outside of the water pipe 2 14, a water tank 15 is connected to the end of the water pipe 2 14, the positive and negative threaded rods 5 and the movable seat 7 are perpendicular to each other, and the movable seat 7 and the conical sealing ring 10 are fixedly connected, the water pipe 18, the telescopic tube 9, the tee 11 and the blower 12 are interconnected, and the water pipe 18 and the telescopic tube 9 are each provided with two, the conical sealing ring 10 and the conical sealing ring 2 13 are each provided with two, and the conical sealing ring 10 and the conical sealing ring 2 13 are coaxially arranged.

[0023] The specific operation is as follows: the servo motor 4 drives the forward and reverse screws 5 to rotate, so that the two screw nuts 6 each drive a moving seat 7 to perform opposite horizontal displacements along the outside of the forward and reverse screws 5, until the fire check valve is tightly attached to the conical sealing ring 10 and the conical sealing ring 2 13 respectively, so that the wind energy generated by the blower 12 is sent into the closed fire check valve through the three-way pipe 11, the telescopic pipe 9, and the water pipe 1 8, thereby achieving the effect of testing two fire check valves at one time, which significantly improves the detection efficiency.

[0024] like Figure 1 and Figure 3 As shown, the water tank 15 is arranged on both sides of the bottom of the testing platform 1, and the water pipe 14 and the water tank 15 are connected to each other. A sound amplifier 16 and a high-definition camera 17 are respectively installed on the top of the inner part of the water tank 15, and a display screen 18 is installed on the top of the fixing seat 1 2 and the fixing seat 2 3. A water filling port 19 is opened on the upper side of one side of the water tank 15, and a drainage port 20 is opened on the lower side of one side of the water tank 15.

[0025] The specific operation is as follows: the high-definition camera 17 is electrically connected to the display screen 18, and personnel can observe the internal situation of the water tank 15 through the display screen 18. At the same time, the bubble sound emitted is amplified and released through the sound amplifier 16, which is helpful for personnel to judge the air tightness of the fire check valve, avoid the problem of missed detection due to unclear bubbles, and ensure the accuracy of the detection results.

[0026] In summary, when the oil fume fire check valve detection device is used, water is first injected into the water tank 15 from the water injection port 19, and two fire check valves are respectively placed outside the conical sealing ring 13 on the left side of the fixed seat 1 and outside the conical sealing ring 13 on the right side of the fixed seat 2, and then the servo motor 4 is started to drive the forward and reverse threaded screw 5 to rotate, and the moving seat 7 is driven by the screw nut 6 to move horizontally along the outside of the forward and reverse threaded screw 5, so that the conical sealing ring 10 on the right side of the moving seat 7 and the conical sealing ring 10 on the left side of the moving seat 7 are each in close contact with a fire check valve;

[0027] At this time, the fire check valve is adjusted to a closed state, and wind is generated by the blower 12, so that the wind is sent into the fire check valve through the three-way pipe 11, the telescopic pipe 9, and the water pipe 1 8. If there is a gap between the valve of the fire check valve and the installation shell, the wind will enter the water pipe 2 14 through the gap and reach the water tank 15. The display screen 18 will play the shooting picture of the high-definition camera 17 inside the water tank 15, and the sound amplifier 16 will amplify and release the bubble sound, which is conducive to personnel judging the air tightness of the fire check valve, avoiding the problem of missed detection due to unclear bubbles, and ensuring the accuracy of the detection results;

[0028] If there is no gap between the valve of the fire check valve and the installation shell, the wind will be blocked in the fire check valve and cannot enter the water tank 15. No bubbles will be generated in the water tank 15. Since the water tanks 15 are arranged on the left and the right, the device has the ability to detect two fire check valves at a time, which significantly improves the detection efficiency.

[0029] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A detection device for an exhaust gas fire check valve, comprising a detection platform (1) and a conical sealing ring (10), It is characterized in that A fixing seat (2) is arranged on the right side of the top of the detection platform (1), and a fixing seat (3) is arranged on the left side of the top of the detection platform (1). A servo motor (4) is installed above the right side of the fixing seat (2), and the output end of the servo motor (4) passes through the fixing seat (2) and is connected to a positive and negative threaded screw (5). The positive and negative threaded screw (5) is connected to a screw nut (6) on the outside, and a moving seat (7) is arranged at the bottom of the screw nut (6). A water pipe (8) is passed through the middle of the moving seat (7), and the water pipe (8) is connected to the positive and negative threaded screw (5). ) is connected to a telescopic tube (9) on one side close to the vertical center axis of the detection platform (1), the other end of the telescopic tube (9) is connected to a three-way tube (11), and the bottom of the three-way tube (11) is connected to a blower (12), the conical sealing ring (10) is arranged on the outside of the water pipe (8), the inside of the fixing seat (2) and the fixing seat (3) is penetrated by a water pipe (14), and the outside of the water pipe (14) is covered with a conical sealing ring (13), and the end of the water pipe (14) is connected to a water tank (15).

2. According to claim 1, a detection device for an exhaust gas fire check valve, It is characterized in that The fixing seat 1 (2) and the fixing seat 2 (3) are symmetrically distributed with respect to the top center position of the detection platform (1), and the blower (12) is arranged in the middle of the front end of the detection platform (1).

3. The oil exhaust gas fire check valve detection device according to claim 1, It is characterized in that The positive and negative threaded rods (5) and the movable seat (7) are perpendicular to each other, and the movable seat (7) and the conical sealing ring (10) are fixedly connected.

4. The oil exhaust gas fire check valve detection device according to claim 1, It is characterized in that The water delivery pipe 1 (8), the telescopic pipe (9), the three-way pipe (11) and the blower (12) are interconnected, and two water delivery pipes (8) and two telescopic pipes (9) are provided respectively.

5. The oil exhaust gas fire check valve detection device according to claim 1, It is characterized in that The conical sealing ring 1 (10) and the conical sealing ring 2 (13) are each provided with two, and the conical sealing ring 1 (10) and the conical sealing ring 2 (13) are coaxially arranged.

6. The oil exhaust gas fire check valve detection device according to claim 1, It is characterized in that The water tank (15) is arranged on both sides of the bottom of the detection platform (1), and the second water delivery pipe (14) and the water tank (15) are connected to each other.

7. The oil exhaust gas fire check valve detection device according to claim 1, It is characterized in that A sound amplifier (16) and a high-definition camera (17) are respectively installed on the inner top of the water tank (15), and a display screen (18) is installed on the top of the fixing seat 1 (2) and the fixing seat 2 (3).

8. The oil exhaust gas fire check valve detection device according to claim 1, It is characterized in that A water inlet (19) is provided on the upper side of one side of the water tank (15), and a water outlet (20) is provided on the lower side of one side of the water tank (15).

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