Fire sprinkler detection device

Abstract

The utility model relates to the technical field of fire-fighting equipment, and discloses a fire-fighting nozzle detection device, which comprises a detection table, a water tank is arranged on the detection table, and a mounting frame is arranged above the water tank; a supporting frame is fixedly arranged on the detection table, an electric push rod is fixedly installed on the supporting frame, and a telescopic shaft of the electric push rod is in transmission connection with the installation frame through an elastic connecting piece. A first clamping sleeve and a second clamping sleeve are mounted on the mounting frame, and are coaxially and oppositely arranged along the horizontal direction; the fire sprinkler is coaxially arranged between the first jacket and the second jacket; the second clamping sleeve is driven by a hydraulic cylinder fixed on the mounting frame, and the second clamping sleeve is coaxially and rotatably mounted on a telescopic shaft of the hydraulic cylinder; the first clamping sleeve is rotationally mounted on the mounting frame, an inflation assembly is fixedly arranged on the supporting frame, and the air outlet end of the inflation assembly communicates with the first clamping sleeve; and a driving piece for driving the first jacket to rotate is arranged between a telescopic shaft of the electric push rod and the mounting frame. The visual field blind area can be effectively reduced, and the detection quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of fire protection equipment technology, and in particular to a fire sprinkler head detection device. Background Technology

[0002] Fire sprinklers need to undergo airtightness testing before leaving the factory to ensure their reliability and safety in actual use, and to avoid problems such as sprinkler leakage that could prevent them from working properly in the event of a fire.

[0003] A fire sprinkler sealing test device disclosed in CN220751486U includes a base plate, with a test water tank fixedly connected to the center of the top of the base plate. This invention utilizes a motor, threaded rod, threaded block, movable plate, and movable column to facilitate the raising and lowering of the lifting plate. An electric telescopic rod, clamping plate, and limiting block clamp and fix the fire sprinkler head in place. An inflation head, exhaust fan, exhaust pipe, and exhaust pipe automatically inflate the inner cavity of the fire sprinkler head for sealing testing.

[0004] Based on the above technical features, the problem is that in the existing technology, after the fire sprinkler head is immersed in water, the bottom of the fire sprinkler head is in a visual blind spot, making it difficult to accurately determine whether it is sealed, which leads to a reduction in the quality of the inspection.

[0005] Therefore, it is necessary to solve the above problems by using a fire sprinkler head detection device. Utility Model Content

[0006] The purpose of this invention is to provide a fire sprinkler head detection device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a fire sprinkler head testing device, including a testing platform, a water tank filled with clean water placed on the testing platform, and a mounting frame that can move up and down above the water tank; a support frame is fixedly installed on the testing platform, and an electric push rod is fixedly installed on the support frame, and the telescopic shaft of the electric push rod is connected to the mounting frame through an elastic connector.

[0008] The mounting bracket is equipped with a first clip and a second clip, which are coaxially opposite each other in the horizontal direction; the fire sprinkler head is coaxially disposed between the first clip and the second clip.

[0009] The second sleeve is driven by a hydraulic cylinder fixed on the mounting bracket, and the second sleeve is coaxially rotatably mounted on the telescopic shaft of the hydraulic cylinder;

[0010] The first jacket is rotatably mounted on the mounting frame, and an inflation component is fixedly mounted on the support frame. The air outlet of the inflation component is connected to the first jacket.

[0011] A drive component for rotating the first sleeve is provided between the telescopic shaft of the electric push rod and the mounting bracket.

[0012] Preferably, the elastic connector includes a sleeve, which is fixedly connected to the mounting bracket; the sleeve is slidably sleeved on the telescopic shaft of the electric push rod, and a spring is coaxially arranged inside the sleeve; one end of the spring is fixedly connected to the telescopic shaft of the electric push rod, and the other end is fixedly connected to the sleeve.

[0013] Preferably, the driving component includes a gear and a rack; the rack is fixedly connected to the telescopic shaft of the electric push rod via a connecting frame, the gear is rotatably mounted on the mounting frame and is coaxially fixedly connected to the first clamp; the rack meshes with the gear.

[0014] Preferably, the bottom of the mounting bracket is fixedly provided with a limiting plate for the movement of the rack, and the bottom end of the limiting plate abuts against the inner wall of the bottom of the water tank for limiting engagement.

[0015] Preferably, the inflation assembly includes an air pump, which is fixed to a support frame; the air outlet of the air pump is fixedly connected to an air pipe, which is coaxially connected to the first jacket; the air pipe is a flexible hose and serves as the air outlet of the inflation assembly.

[0016] Preferably, the water tank is made of a transparent material.

[0017] Preferably, both the first and second jackets are rubber sleeves and are fitted onto the axial end of the nozzle.

[0018] The technical effects and advantages of this utility model are as follows: The driving component of this utility model can drive the first clamp to rotate; during detection, the first clamp and the second clamp together drive the fire sprinkler head to rotate; when the fire sprinkler head rotates, the unseen area can be rotated to the top, reducing the blind spot and improving the detection quality. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the inflatable component of this utility model;

[0021] Figure 3 This is an enlarged schematic diagram of point A in this utility model;

[0022] Figure 4 This is a schematic diagram of the elastic connector of this utility model.

[0023] In the diagram: 1. Testing platform; 2. Electric push rod; 3. Spring; 4. Sleeve; 5. Mounting bracket; 6. Connecting pipe; 7. First clamp; 8. Air pump; 9. Air pipe; 10. Hydraulic cylinder; 11. Second clamp; 12. Limiting plate; 13. Water tank; 14. Connecting bracket; 15. Rack; 16. Gear. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] This utility model provides, for example Figures 1 to 4 The fire sprinkler head testing device shown includes a testing platform 1. A water tank 13 filled with clean water is placed on the testing platform 1. The water tank 13 is made of a transparent material, such as glass or transparent plastic.

[0026] A movable mounting bracket 5 is installed above the water tank 13. A support frame is fixedly installed on the testing table 1, and an electric push rod 2 is fixedly installed on the support frame. The output shaft of the telescopic shaft of the electric push rod 2 is vertically downward and is connected to the mounting bracket 5 through an elastic connector.

[0027] Specifically, the elastic connector includes a sleeve 4, which is slidably fitted onto the telescopic shaft of the electric push rod 2. The bottom of the sleeve 4 is closed and fixedly connected to the mounting bracket 5. A spring 3 is coaxially arranged inside the sleeve 4, with its top end fixedly connected to the telescopic shaft of the electric push rod 2 and its other end fixedly connected to the sleeve 4.

[0028] In this embodiment, the mounting bracket 5 consists of a connecting plate, a first fixing seat, and a second fixing seat. The connecting plate is fixedly connected to the sleeve 4, and both the first fixing seat and the second fixing seat are fixed to the connecting plate and are located at the same height.

[0029] A hydraulic cylinder 10 is fixedly mounted on the second fixed seat, and the telescopic shaft of the hydraulic cylinder 10 is horizontally oriented toward the first fixed seat. A second circular plate is coaxially rotatably mounted on the end of the telescopic shaft of the hydraulic cylinder 10 near the first fixed seat, and a second sleeve 11 is coaxially fixed on the end face of the second circular plate facing the first fixed seat.

[0030] A first circular plate is rotatably mounted on a first fixed base, and the first circular plate and the second circular plate are coaxially opposite each other. A first clamping sleeve 7 is coaxially fixed on the end face of the first circular plate facing the second circular plate.

[0031] The first sleeve 7 and the second sleeve 11 are coaxially opposite each other, with open ends on both sides and closed ends on the opposite sides. Both the first sleeve 7 and the second sleeve 11 are rubber sleeves. The fire sprinkler head is coaxially disposed between the first sleeve 7 and the second sleeve 11, and both the first sleeve 7 and the second sleeve 11 are fitted onto the axial end of the fire sprinkler head and clamp it.

[0032] An inflation component is fixedly installed on the support frame, and the air outlet of the inflation component is connected to the first jacket 7.

[0033] Specifically, the inflation assembly includes an air pump 8, which is fixed to the mounting bracket 5. The air outlet of the air pump 8 is fixedly connected to an air pipe 9, and the outlet of the air pipe 9 away from the air pump 8 is fixedly connected to a connecting pipe 6. The connecting pipe 6 passes through the first fixed base and is coaxially fixedly connected to the first circular plate. The connecting pipe 6 is rotatably connected to the first fixed base and coaxially connected to the first clamp 7. The air pipe 9 is a flexible hose and serves as the air outlet of the inflation assembly.

[0034] A drive component for rotating the first sleeve 7 is provided between the telescopic shaft of the electric push rod 2 and the mounting bracket 5.

[0035] Specifically, the driving component includes a gear 16 and a rack 15. The rack 15 is vertically positioned and fixedly connected to the telescopic shaft of the electric push rod 2 via a connecting bracket 14. The gear 16 is sleeved on the connecting tube 6 and coaxially fixedly connected to the first circular plate. The rack 15 and the gear 16 mesh with each other.

[0036] The bottom of the connecting plate of the mounting bracket 5 is fixedly provided with a limiting plate 12 for the movement of the rack 15 to make way. The bottom end of the limiting plate 12 abuts against the inner wall of the bottom of the water tank 13 for limiting and cooperating.

[0037] In this embodiment, the hydraulic cylinder 10 that drives the second jacket 11 to move closer to or further away from the first jacket 7 can be replaced with an electric telescopic rod, a pneumatic cylinder, etc., depending on the actual usage, to prevent air bubbles generated by the hydraulic cylinder 10 itself from affecting the test results. Meanwhile, the axial lengths of the first jacket 7 and the second jacket 11 can be determined according to the actual testing requirements to minimize the surface area of ​​the fire sprinkler head covered by the first jacket 7 and the second jacket 11.

[0038] Working principle: When using this testing device to test the sealing performance of a fire sprinkler head, a person or an existing robotic arm coaxially inserts the fire sprinkler head into the first clamp 7. Then, the hydraulic cylinder 10 is activated, and its telescopic shaft extends, pushing the second circular plate closer to the first circular plate. The second circular plate then moves the second clamp 11 closer to the first clamp 7.

[0039] As the second jacket 11 approaches the first jacket 7, it gradually comes into contact with the fire sprinkler head and, upon contact, is fitted onto it. As the second jacket 11 continues to approach the first jacket 7, the second jacket 11 and the first jacket 7 clamp the fire sprinkler head and come into contact with it. At this point, the first jacket 7 and the second jacket 11 block both axial ends of the fire sprinkler head. Simultaneously, the fire sprinkler head connects to the connecting pipe 6.

[0040] After the fire sprinkler head is clamped, the hydraulic cylinder 10 is closed and the electric push rod 2 is activated. The telescopic shaft of the electric push rod 2 extends downward and pushes the sleeve 4 downward through the spring 3. The sleeve 4 drives the mounting bracket 5 to move downward as a whole. The mounting bracket 5 drives the first fixed seat and the second fixed seat to move downward synchronously. The first fixed seat drives the first circular plate to move downward synchronously. The second fixed seat drives the hydraulic cylinder 10 to move downward synchronously. At the same time, the telescopic shaft of the hydraulic cylinder 10 drives the second circular plate to move downward synchronously. The first circular plate drives the first clamp 7 to move downward synchronously. The second circular plate drives the second clamp 11 to move downward synchronously. The first clamp 7 and the second clamp 11 together drive the fire sprinkler head to move downward.

[0041] As the fire sprinkler head moves downward, it gradually becomes immersed in the clean water in the water tank 13. Once the fire sprinkler head is fully immersed in the water tank 13 and deeply embedded within it, the electric push rod 2 is turned off. At this point, the limit plate 12 is not in contact with the inner wall of the bottom of the water tank 13.

[0042] Next, after the water in water tank 13 has settled, start air pump 8. Air pump 8 will sequentially fill the fire sprinkler head with compressed gas through air pipe 9 and connecting pipe 6. After filling the fire sprinkler head with a certain amount of compressed gas, turn off air pump 8. Afterward, observe whether the fire sprinkler head leaks. To avoid damaging the air pump, install a control valve in connecting pipe 6 to prevent the compressed gas in the fire sprinkler head from flowing back into air pump 8.

[0043] After observing for a period of time, the electric actuator 2 is restarted. The telescopic shaft of the electric actuator 2 extends downward again. After the limiting plate 12 contacts the bottom of the water tank 13, the telescopic shaft of the electric actuator 2 compresses the spring 3, and drives the rack 15 to move downward through the connecting bracket 14. When the rack 15 moves downward, it pushes the gear 16 to rotate. The gear 16 drives the connecting pipe 6 to rotate, the connecting pipe 6 drives the first circular plate to rotate, and the first circular plate drives the first clamp 7 to rotate. Under the action of the friction between the first clamp 7 and the second clamp 11, the first clamp 7 drives the fire sprinkler head to rotate 180 degrees, so that the bottom of the fire sprinkler head rotates to the top. During this process, the connecting pipe 6 will twist the air pipe 9.

[0044] Afterwards, once the water in water tank 13 has settled, check whether the fire sprinkler head is leaking air.

[0045] Upon completion of the test, the telescopic shaft of the electric push rod 2 retracts upwards, ultimately bringing the fire sprinkler head out of the water. During this process, the spring 3 extends, the fire sprinkler head rotates 180 degrees, and the connecting pipe 6 drives the air pipe 9 back to its original position.

[0046] After the fire sprinkler head is brought out of the clean water, it is manually held. Once held, the telescopic shaft of the hydraulic cylinder 10 retracts, and the second jacket 11 moves away from the first jacket 7 and detaches from the fire sprinkler head. During this process, the compressed gas inside the fire sprinkler head is released. After the second jacket 11 detaches from the fire sprinkler head, the fire sprinkler head can be removed from the first jacket 7.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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. A fire sprinkler head testing device, comprising a testing platform (1), characterized in that: A water tank (13) filled with clean water is placed on the testing platform (1), and a mounting frame (5) that can move up and down is set above the water tank (13); a support frame is fixedly set on the testing platform (1), and an electric push rod (2) is fixedly installed on the support frame. The telescopic shaft of the electric push rod (2) is connected to the mounting frame (5) through an elastic connector. The mounting bracket (5) is equipped with a first sleeve (7) and a second sleeve (11), which are coaxially opposite each other in the horizontal direction; the fire sprinkler head is coaxially disposed between the first sleeve (7) and the second sleeve (11). The second sleeve (11) is driven by a hydraulic cylinder (10) fixed on the mounting bracket (5), and the second sleeve (11) is coaxially rotatably mounted on the telescopic shaft of the hydraulic cylinder (10); The first sleeve (7) is rotatably mounted on the mounting frame (5), and an inflation component is fixedly mounted on the support frame. The air outlet of the inflation component is connected to the first sleeve (7). A drive component for driving the first sleeve (7) to rotate is provided between the telescopic shaft of the electric push rod (2) and the mounting bracket (5).

2. The fire sprinkler head detection device according to claim 1, characterized in that: The elastic connector includes a sleeve (4), which is fixedly connected to the mounting bracket (5); the sleeve (4) is slidably sleeved on the telescopic shaft of the electric push rod (2), and a spring (3) is coaxially arranged inside the sleeve (4); one end of the spring (3) is fixedly connected to the telescopic shaft of the electric push rod (2), and the other end is fixedly connected to the sleeve (4).

3. The fire sprinkler head detection device according to claim 2, characterized in that: The driving component includes a gear (16) and a rack (15); the rack (15) is fixedly connected to the telescopic shaft of the electric push rod (2) through a connecting frame (14); the gear (16) is rotatably mounted on the mounting frame (5) and is fixedly connected to the first clamp (7) on the same axis; the rack (15) meshes with the gear (16).

4. The fire sprinkler head detection device according to claim 3, characterized in that: The bottom of the mounting bracket (5) is fixedly provided with a limiting plate (12) for the rack (15) to move and make way. The bottom end of the limiting plate (12) abuts against the inner wall of the bottom of the water tank (13) for limiting and cooperating.

5. A fire sprinkler head detection device according to claim 1, characterized in that: The inflation assembly includes an air pump (8), which is fixed on a support frame; the air outlet of the air pump (8) is fixedly connected to an air pipe (9), which is coaxially connected to the first jacket (7); the air pipe (9) is a flexible hose and is the air outlet of the inflation assembly.

6. The fire sprinkler head detection device according to claim 1, characterized in that: The water tank (13) is made of transparent material.

7. A fire sprinkler head detection device according to claim 1, characterized in that: The first sleeve (7) and the second sleeve (11) are both rubber sleeves and are both fitted on the axial end of the fire sprinkler head.

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