Airtightness detection structure for fire-fighting pipeline

Abstract

The utility model relates to the technical field of airtightness detection, in particular to a firefighting pipeline airtightness detection structure which comprises a sliding rail, supporting plates are arranged at the two ends of the sliding rail, driving rods are fixedly installed on the supporting plates, the output ends of the driving rods are fixedly connected with sealing discs, and the firefighting pipeline airtightness detection structure is further provided with a high-pressure air pump. An output pipeline of the high-pressure air pump is fixedly installed in the center of one closed disc and provided with an electromagnetic air valve, the other closed disc is fixedly provided with a barometer, pipe taking discs are rotatably installed above the sliding rail, at least three pipe taking grooves are formed in the circumference of each pipe taking disc in an array mode, the number of the pipe taking discs is at least two, and the pipe taking discs are connected with a driving motor. The driving motor is installed above the sliding rail, and the feeding sliding way and the discharging sliding way are arranged on the two sides of the sliding rail. According to the invention, the pipe taking disc is arranged to take the pipe automatically, and after the barometer seals the pipeline, the air tightness of the fire-fighting pipeline is detected by observing the attenuation of the barometer, so that the detection mode is simplified.

Description

Technical Field

[0001] The present application relates to the technical field of air tightness detection, and in particular to an air tightness detection structure for a fire protection pipeline. Background Art

[0002] Firefighting pipes are pipes used to transfer liquid or gaseous firefighting media during firefighting. In order for firefighting pipes to function in a timely manner, the firefighting media needs to be kept at a high pressure on a daily basis, and the firefighting pipes need to withstand a large static pressure. In order to ensure the quality of firefighting pipes under high pressure, they need to be tested for air tightness before installation to reduce the possibility of leakage. In existing air tightness tests, pipes filled with high-pressure gas are often placed in water to observe whether bubbles are generated. After the test is completed, the pipes need to be dried, which is quite troublesome. Summary of the invention

[0003] In view of the deficiencies in the prior art, the purpose of the present application is to provide an easy-to-use fire protection pipe air tightness detection structure.

[0004] The above application objectives of this application are achieved through the following technical solutions:

[0005] A fire protection pipeline air tightness detection structure, comprising:

[0006] A sliding rail, wherein both ends of the sliding rail are provided with support plates;

[0007] A driving rod, the driving rod is fixedly mounted on the supporting plate;

[0008] A closing disk, the closing disk is fixedly mounted on the output end of the driving rod, and a sealing gasket is provided at one end of the closing disk away from the driving rod;

[0009] A high-pressure air pump, wherein an output pipe of the high-pressure air pump is fixedly installed at the center of one of the closed disks, and the output pipe of the high-pressure air pump passes through the closed disk;

[0010] An electromagnetic gas valve, the electromagnetic gas valve is fixedly installed on the output pipeline of the high-pressure air pump;

[0011] A barometer, the barometer being fixedly mounted on the closing disk away from the output pipeline of the high-pressure air pump;

[0012] A tube-taking plate, the tube-taking plate is rotatably mounted above the sliding rail, the tube-taking plate has at least three tube-taking grooves with semicircular bottoms in an array near the outer circumference, when the tube-taking grooves are rotated to the upper side, the arc at the bottom of the tube-taking grooves is coaxial with the closing plate, and at least two tube-taking plates are provided;

[0013] A driving motor, wherein the driving motor is installed above the sliding rail, and an output end of the driving motor is fixedly connected to the tube removal tray;

[0014] The inclined slide includes a loading slide and a unloading slide, and the loading slide and the unloading slide are respectively located on both sides of the sliding rail. When one of the pipe taking grooves rotates to the upper side, the loading slide and the unloading slide are respectively opposite to one of the pipe taking grooves.

[0015] Optionally, the support plate is slidably mounted on the sliding rail, and a locking member is installed on the support plate, and the locking member is used to lock the position of the support plate on the sliding rail.

[0016] Optionally, a self-test ring is provided on the fixed sleeve outside one of the closed disks, and a ring groove is provided on the end face of the self-test ring. A self-test ring is fixedly connected to the outside of the other closed disk. When the closed disks are close to each other, the self-test ring is inserted into the ring groove, and a sealing gasket is provided at the bottom of the ring groove.

[0017] Optionally, an active frame is installed on the sliding rail, and follower frames that can slide along the sliding rail are arranged on both sides of the active frame. The follower frame is installed with fixing parts, and the fixing parts are used to fix the position of the follower frame. The pipe removal tray is installed on both the active frame and the follower frame, and the drive motor is installed on the active frame.

[0018] Optionally, the active frame and the follower frame are both rotatably mounted with spline shafts, a spline hole is provided at the center of the pipe removal disc, and a fixing bolt is threadedly connected to the end face of the spline shaft.

[0019] Optionally, the output end of the driving rod is fixedly connected with a connecting disk, and a circular array of at least three connecting rods is arranged on the end surface of the connecting disk away from one end of the driving rod, and the closing disk is fixedly connected to the connecting rod.

[0020] Optionally, a pressure relief pipe is installed on the closing disk close to the pressure gauge, and the solenoid valve is installed on the pressure relief pipe.

[0021] Optionally, a control module is also included, and the solenoid valve, drive rod, high-pressure air pump, pressure gauge, and drive motor are all electrically connected to the control module.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] The pipe removal tray is set to automatically remove the pipe. After the pipe is sealed with a pressure gauge, the air tightness of the fire-fighting pipe is detected by observing the attenuation of the pressure gauge, which reduces the drying steps after the water test and simplifies the detection method.

[0024] By setting a slidable support plate, it is convenient to adjust the initial distance between the two closing plates, so as to be suitable for the detection of fire pipes with different lengths;

[0025] By setting the self-test ring and the self-checking ring, before starting to check the fire protection pipe, the sealing performance of the closed disk part can be self-checked by closing the self-test ring and the self-checking ring, thereby reducing the impact caused by abnormal sealing performance of the closed disk part. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0027] Figure 2 is a schematic structural diagram of a closed disk according to an embodiment of the present application;

[0028] Figure 3 is a schematic structural diagram of another closed disk in an embodiment of the present application;

[0029] Figure 4 It is a schematic diagram of the structure of the tube removal tray according to an embodiment of the present application.

[0030] Reference numerals: 1, sliding rail; 11, supporting plate; 12, active frame; 121, fixing bolt; 13, follower frame; 131, fixing member; 111, locking member;

[0031] 2. driving rod; 21. connecting plate; 211. connecting rod;

[0032] 31. Closed disk; 321. Self-test ring; 322. Self-test ring;

[0033] 41. High-pressure air pump; 42. Solenoid air valve; 43. Air pressure gauge; 44. Pressure relief pipe;

[0034] 51. Take out the pipe tray; 52. Take out the pipe trough; 531. Loading chute; 532. Unloading chute. DETAILED DESCRIPTION

[0035] The present application is further described in detail below in conjunction with the accompanying drawings.

[0036] See also Figure 1 , is a fire protection pipeline air tightness detection structure disclosed in the embodiment of the present application, comprising a sliding rail 1, and support plates 11 are provided at both ends of the sliding rail 1, please refer to Figure 2 or Figure 3 The support plates 11 are fixedly mounted with the driving rod 2, and the output ends of the driving rods 2 are fixedly connected with the closing disk 31, and the closing disk 31 is provided with a sealing gasket at one end away from the driving rod 2. Figure 2 A high-pressure air pump 41 is also provided. The output pipeline of the high-pressure air pump 41 is fixedly installed at the center of one of the closed disks 31. The output pipeline of the high-pressure air pump 41 passes through the closed disk 31. An electromagnetic air valve 42 is fixedly installed on the output pipeline of the high-pressure air pump 41. A pressure gauge 43 is fixedly installed on the closed disk 31 away from the output pipeline of the high-pressure air pump 41. A pipe removal disk 51 is rotatably installed above the sliding rail 1. Please refer to Figure 4 , the tube taking disc 51 has at least three tube taking grooves 52 with semicircular bottoms near the outer circumferential array. When the tube taking groove 52 rotates to the upper side, the arc at the bottom of the tube taking groove 52 is coaxial with the closed disc 31. At least two tube taking discs 51 are provided. The tube taking disc 51 is connected to a driving motor, and the driving motor is installed above the sliding rail 1. Inclined slides are provided on both sides of the sliding rail 1. The inclined slides include a loading slide 531 and a unloading slide 532. The loading slide 531 and the unloading slide 532 are respectively located on both sides of the sliding rail 1. When one of the tube taking grooves 52 rotates to the upper side, the loading slide 531 and the unloading slide 532 are respectively opposite to one of the tube taking grooves 52.

[0037] Specifically, an inclined slide is provided to allow the fire-fighting pipe to roll down the loading slide 531 and the unloading slide 532 for loading and unloading. When the pipe-taking disc 51 rotates, the fire-fighting pipe rolled down the loading slide 531 is stuck in the pipe-taking groove 52 and is rotated to the position of the closing disc 31. The two closing discs 31 are driven by the driving rod 2 to approach each other at both ends of the closed fire-fighting pipe and are inflated by the high-pressure air pump 41. After the air pressure reaches a certain level, the pipe is closed for a period of time through the electromagnetic air valve 42, and the attenuation of the pressure gauge 43 is observed. After the detection is completed, the pipe-taking disc 51 is rotated to roll the fire-fighting pipe to the unloading slide 532.

[0038] In this way, by setting up the pipe taking plate 51 to automatically take out the pipe, and after the pressure gauge 43 closes the pipe, the air tightness of the fire-fighting pipe is detected by observing the attenuation of the pressure gauge 43, the drying step after the water entry detection is reduced and the detection method is simplified.

[0039] In some feasible ways, the support plate 11 is in the shape of a rectangular block, the drive rod 2 can be selected as a hydraulic cylinder or a pneumatic cylinder, a bracket is fixedly installed on the upper end of the support plate 11, the drive rod 2 is fixedly installed on the upper end of the bracket, the closing plate 31 is in the shape of a disc, a through hole is opened in the center of the closing plate 31, the barometer 43 and the output pipeline of the high-pressure air pump 41 are respectively fixedly installed at the position of the through hole, in order to facilitate the installation of the barometer 43 and the output pipeline of the high-pressure air pump 41, the output end of the drive rod 2 is fixedly connected with a connecting plate 21, and the connecting plate 21 is arranged away from the end surface of the drive rod 2. There are at least three connecting rods 211 in a circumferential array, and the closing plate 31 is fixedly connected to the connecting rod 211. The connecting rod 211 is arranged to form an accommodating space, which is convenient for the installation of the barometer 43 and the output pipeline of the high-pressure air pump 41;

[0040] The pipe taking disc 51 is disc-shaped, and the pipe taking groove 52 is a semicircular arc with the same outer diameter as the fire pipe to be tested at the bottom. The pipe taking groove 52 is U-shaped as a whole. The loading chute 531 and the unloading chute 532 are both steel frame structures, and the upper end forms an inclined surface through the steel frame. The inclined surface of the loading chute 531 causes the fire pipe to roll down to the pipe taking groove 52, and the pipe taking groove 52 is rotated to the upper side. After the pipe taking groove 52 is rotated again, the fire pipe rolls down to the unloading chute 532.

[0041] In order to improve the degree of automation, a control module is also provided, and the electromagnetic air valve 42, the driving rod 2, the high-pressure air pump 41, the pressure gauge 43, and the driving motor are all electrically connected to the control module.

[0042] It should be understood that the control module is an industrial PLC control module, which performs logical control on the electromagnetic valve 42, the drive rod 2, the high-pressure air pump 41, the pressure gauge 43, and the drive motor to automate the inspection.

[0043] As a specific implementation of a fire protection pipeline air tightness detection structure provided in the application, please refer to Figure 1 The support plate 11 is slidably mounted on the sliding rail 1 , and a locking member 111 is installed on the support plate 11 , and the locking member 111 is used to lock the position of the support plate 11 on the sliding rail 1 .

[0044] In general, by providing a slidable support plate 11, it is convenient to adjust the initial distance between the two closing plates 31, so as to be suitable for the detection of fire pipes with different lengths.

[0045] In some feasible embodiments, the sliding rail 1 is in the shape of a cylindrical rod, and a round tube with an opening on the lower side is fixedly installed under the support plate 11. The round tube can be slidably mounted on the sliding rail 1. The locking piece 111 is a bolt, and the locking piece 111 is threadedly connected to the round tube and abuts against the sliding rail 1 after being tightened.

[0046] For further information, see Figure 2 and Figure 3 A self-test ring 321 is fixedly sleeved on the outside of one of the closed disks 31, and a ring groove is opened on the end face of the self-test ring 321. A self-test ring 322 is fixedly connected to the outside of the other closed disk 31. When the closed disks 31 are close to each other, the self-test ring 322 is inserted into the ring groove, and a sealing gasket is provided at the bottom of the ring groove.

[0047] It should be understood that by providing the self-test ring 322 and the self-checking ring 321, before starting to check the fire protection pipe, by closing the self-test ring 322 and the self-checking ring 321, the sealing property of the closing disk 31 can be partially self-checked, thereby reducing the impact caused by the abnormal sealing property of the closing disk 31.

[0048] In combination with specific usage scenarios, when self-testing through the self-test ring 322 and the self-check ring 321, the tube tray 51 should be disassembled.

[0049] As another specific implementation of the fire protection pipeline air tightness detection structure provided by the application, please refer to Figure 1 and Figure 4An active frame 12 is installed on the sliding rail 1, and follower frames 13 that can slide along the sliding rail 1 are arranged on both sides of the active frame 12. The follower frame 13 is installed with a fixing member 131, and the fixing member 131 is used to fix the position of the follower frame 13. The active frame 12 and the follower frame 13 are both installed with a pipe taking disc 51, and the driving motor is installed on the active frame 12.

[0050] In combination with specific usage scenarios, an active frame 12 and a follower frame 13 are set up, so that the active frame 12 is used as the driving part of the pipe-taking disc 51, and the pipe-taking disc 51 on the follower frame 13 follows the movement under the connection of the fire-fighting pipe, thereby reducing the asynchronous problem caused by multiple drives.

[0051] Furthermore, both the active frame 12 and the follower frame 13 are rotatably mounted with a spline shaft, a spline hole is provided at the center of the pipe plate 51, and a fixing bolt 121 is threadedly connected to the end surface of the spline shaft.

[0052] It should be understood that by providing a key shaft connection and fixing with the end face fixing bolts 121, it is convenient to remove and replace the pipe disc 51, thereby facilitating application to fire fighting pipes of different diameters.

[0053] In some feasible embodiments, the active frame 12 includes a rectangular box, which is installed above the sliding rail 1, and the driving motor is installed in the rectangular box. A support box is fixedly installed on the upper end of the rectangular box, and a chain mechanism or a gear belt mechanism is arranged in the support box for taking the tube disc 51 and driving the driving motor. The follower frame 13 has a similar structure to the active frame 12. For the convenience of fixing, the spline shaft is shorter than the spline hole. The sliding connection structure of the follower frame 13 is similar to the sliding structure of the support plate 11.

[0054] As a specific implementation of a fire protection pipeline air tightness detection structure provided in the application, please refer to Figure 3 A pressure relief pipe 44 is installed on the closing disk 31 near the pressure gauge 43, and an electromagnetic gas valve 42 is installed on the pressure relief pipe 44.

[0055] It should be understood that by providing the pressure relief pipe 44, the fire protection pipeline is depressurized after the detection is completed, and the high-pressure gas is discharged to a safe location through the pressure relief pipe 44, thereby reducing the possibility of danger caused by the discharge of high-pressure gas.

[0056] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A fire protection pipeline air tightness detection structure, characterized in that: include: A sliding rail (1), wherein both ends of the sliding rail (1) are provided with support plates (11); A driving rod (2), the driving rod (2) being fixedly mounted on the supporting plate (11); A closing disk (31), the closing disk (31) being fixedly mounted on the output end of the driving rod (2), and a sealing gasket being provided at one end of the closing disk (31) away from the driving rod (2); A high-pressure air pump (41), wherein an output pipe of the high-pressure air pump (41) is fixedly installed at the center of one of the closing disks (31), and the output pipe of the high-pressure air pump (41) passes through the closing disk (31); An electromagnetic air valve (42), the electromagnetic air valve (42) being fixedly mounted on an output pipeline of the high-pressure air pump (41); A pressure gauge (43), the pressure gauge being fixedly mounted on the closing disk (31) away from the output pipe of the high-pressure air pump (41); a tube taking plate (51), the tube taking plate (51) being rotatably mounted above the sliding rail (1), the tube taking plate (51) having at least three tube taking grooves (52) with semicircular bottoms arranged in an array near the outer circumference, and when the tube taking grooves (52) are rotated to the upper side, the bottom arc of the tube taking grooves (52) is coaxial with the closing plate (31), and at least two tube taking plates (51) are provided; A drive motor, the drive motor being mounted above the sliding rail (1), the output end of the drive motor being fixedly connected to the tube removal tray (51); An inclined slide, the inclined slide comprising a loading slide (531) and a unloading slide (532), the loading slide (531) and the unloading slide (532) being respectively located on both sides of the sliding rail (1), and when one of the tube taking grooves (52) rotates upward, the loading slide (531) and the unloading slide (532) are respectively opposite to one of the tube taking grooves (52).

2. A fire protection pipeline air tightness detection structure according to claim 1, characterized in that: The support plate (11) is slidably mounted on the sliding rail (1), and a locking member (111) is mounted on the support plate (11), wherein the locking member (111) is used to lock the position of the support plate (11) on the sliding rail (1).

3. A fire protection pipeline air tightness detection structure according to claim 2, characterized in that: A self-test ring (321) is fixedly sleeved on the outside of one of the closed disks (31), and a ring groove is formed on the end surface of the self-test ring (321). A self-test ring (322) is fixedly connected to the outside of the other closed disk (31). When the closed disks (31) are brought close to each other, the self-test ring (322) is inserted into the ring groove, and a sealing gasket is provided at the bottom of the ring groove.

4. The fire protection pipeline air tightness detection structure according to claim 1, characterized in that: An active frame (12) is mounted on the sliding rail (1), and follower frames (13) that can slide along the sliding rail (1) are arranged on both sides of the active frame (12). The follower frames (13) are mounted with fixing members (131), and the fixing members (131) are used to fix the position of the follower frames (13). The tube removal disc (51) is mounted on both the active frame (12) and the follower frames (13), and the drive motor is mounted on the active frame (12).

5. A fire protection pipeline air tightness detection structure according to claim 4, characterized in that: The active frame (12) and the follower frame (13) are both rotatably mounted with a spline shaft, a spline hole is provided at the center of the pipe removal disc (51), and a fixing bolt (121) is threadedly connected to the end surface of the spline shaft.

6. The fire protection pipeline air tightness detection structure according to claim 1, characterized in that: The output end of the driving rod (2) is fixedly connected to a connecting disk (21), and a circumferential array of at least three connecting rods (211) is formed on the end surface of the connecting disk (21) away from the driving rod (2), and the closing disk (31) is fixedly connected to the connecting rod (211).

7. The fire protection pipeline air tightness detection structure according to claim 1, characterized in that: The closing disk (31) close to the pressure gauge (43) is equipped with a pressure relief pipe (44), and the solenoid valve (42) is installed on the pressure relief pipe (44).

8. The fire protection pipeline air tightness detection structure according to claim 1, characterized in that: It also includes a control module, and the electromagnetic valve (42), the drive rod (2), the high-pressure air pump (41), the pressure gauge (43), and the drive motor are all electrically connected to the control module.

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