A sprinkler testing device
By designing a water sprinkler head testing device with a position adjustment block and a support plate, the problem of inconvenient testing position in existing devices is solved, and flexible adjustment of the sprinkler head position and water recycling are realized, thereby improving testing accuracy and equipment compatibility.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI JIANKE TECHN ASSESSMENT OF CONSTR
- Filing Date
- 2025-07-10
- Publication Date
- 2026-06-05
AI Technical Summary
The existing sprinkler head testing device is not convenient for adjusting the test position during testing, resulting in insufficient flexibility and accuracy in testing.
A water spray head testing device was designed, comprising a water tank, a partition, a mounting housing, a position adjustment block, and a support plate. The test position of the spray head can be adjusted by sliding and rotating the position adjustment block and the support plate, and water can be recycled through a water recovery tank. The device supports testing of multiple spray head models.
It enables flexible adjustment of the nozzle position, improves the accuracy of testing and the compatibility of the equipment, reduces water consumption, and improves the continuity and efficiency of testing.
Smart Images

Figure CN224327987U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of testing devices, and in particular to a testing device for sprinkler heads. Background Technology
[0002] Sprinkler heads are a key component of automatic sprinkler systems. Their primary function is to automatically activate upon detecting a fire, releasing water to control or extinguish the flames. Sprinkler heads are typically equipped with heat-sensitive elements that automatically rupture when the ambient temperature reaches a predetermined value, releasing water. Sprinkler heads spray water or other extinguishing agents onto specific areas, helping to cool the fire source, inhibit flame spread, and reduce the generation of smoke and toxic gases. By controlling the fire promptly, sprinkler heads can buy valuable time for evacuation and minimize damage to buildings and their contents. Compared to traditional fire suppression methods, automatic sprinkler systems can respond quickly without human intervention, significantly reducing economic losses caused by fires. As a proactive fire prevention measure, sprinkler heads effectively reduce fire risk and provide additional safety. A sprinkler head testing device is a crucial piece of equipment specifically designed to evaluate and test the performance of sprinkler heads. Its primary function is to ensure that sprinkler heads can operate reliably in actual fire conditions, thereby guaranteeing the effectiveness of automatic sprinkler systems. This device can accurately measure the water flow above and below the sprinkler head's deflector, which is essential for ensuring uniform water distribution and coverage. Through rigorous testing procedures, it ensures that each sprinkler head can activate and operate effectively in the event of a fire, minimizing fire damage.
[0003] The Chinese patent for a fire sprinkler head water pressure testing machine, with publication number CN221706839U, uses a testing unit to deliver water at a set pressure to the sprinkler head to check whether the sprinkler head is deformed or damaged. However, when testing the sprinkler head, there is a problem that it is inconvenient to adjust the test position. In view of this, a sprinkler head testing device is provided. Utility Model Content
[0004] The main purpose of this utility model is to provide a sprinkler head testing device to solve the problem in related technologies where it is inconvenient to adjust the test position when testing sprinkler heads.
[0005] To achieve the above objectives, according to one aspect of this utility model, a sprinkler head testing device is provided, comprising a water tank, a partition fixedly installed inside the water tank, the partition dividing the water tank into a first water storage tank and a second water storage tank, a through hole being formed in the side wall of the partition, a mounting housing being fixedly installed in the side wall of the water tank, a mounting groove being formed inside the mounting housing, two limiting shafts being fixedly installed in the mounting groove, and further comprising: a position adjusting block, the position adjusting block being slidably installed at the limiting shaft, a rotating groove being formed on the upper surface of the position adjusting block, a support plate being rotatably mounted at the rotating groove, two mounting plates being symmetrically fixedly installed on the upper surface of the support plate, a spring being fixedly installed on one side of the mounting plate, a clamping block being fixedly installed on the other end of the spring, a water suction pipe being clamped between the two clamping blocks, a sprinkler head being fixedly installed at one end of the water suction pipe, and the test position of the sprinkler head being adjusted by sliding the position adjusting block and rotating the support plate.
[0006] Furthermore, a lead screw is rotatably installed in the mounting groove, with one end of the lead screw penetrating the mounting housing and exposed to the outside.
[0007] Furthermore, a lead screw nut is fixedly installed at the center of the lower surface of the position adjusting block. The lead screw nut is threaded with the lead screw. Two limiting holes are opened through the side wall of the position adjusting block. The position adjusting block is slidably installed on the limiting shaft through the limiting holes.
[0008] Furthermore, a rotating shaft is fixedly installed at the center of the lower surface of the support plate, and the rotating shaft is rotatably installed in the rotating groove.
[0009] Furthermore, the mounting plate has a through-hole in the side wall, and a bolt is installed in the threaded hole. One end of the bolt is pressed against the side wall of the clamping block, and one side of the clamping block has an arc-shaped structure.
[0010] Furthermore, a water recycling tank is fixedly installed on one side of the mounting housing, a water recycling pipe is fixedly installed on one side of the water recycling tank, and the other end of the water recycling pipe is fixedly installed on one side of the water tank. The water recycling pipe connects the No. 1 water storage tank and the No. 2 water storage tank.
[0011] Furthermore, the side wall of the mounting housing is provided with a connecting groove that connects to the mounting groove, and one end of the water pump pipe passes through the connecting groove and is located in the recovery water tank. The side wall of the mounting housing is provided with a direction adjustment groove that connects to the second water storage tank, and one end of the water pump pipe passes through the direction adjustment groove and is located in the second water storage tank.
[0012] Furthermore, the partition sidewall has a through hole, a liquid level gauge is fixedly installed on the sidewall of the water tank, and a nozzle replacement slot connecting to the second water storage tank is provided on the sidewall of the water tank.
[0013] Furthermore, the water tank is made of transparent acrylic material.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] In this invention, the water nozzle to be tested is installed at one end of a water suction pipe, and the other end of the pipe is inserted into a water recovery tank for water intake. Tightening the bolts in the mounting plate pushes a clamping block, which clamps and fixes water suction pipes of different sizes, supporting testing of multiple sprinkler head models without frequent clamp changes, thus improving equipment compatibility and efficiency. By rotating the support plate, the position adjustment block slides along the limiting axis, adjusting the position of the sprinkler head to simulate the spraying effect under different installation angles and spatial positions, ensuring that the test data more closely reflects actual application scenarios. A water recovery tank is fixedly installed on one side of the mounting housing, and a water recovery pipe is fixedly installed on the other side of the tank. The other end of the water recovery pipe is fixedly installed on the side of the water tank, connecting two water storage tanks. The liquid in the two water storage tanks is then transported back to the water recovery tank through the water recovery pipe, achieving water recycling, reducing experimental water consumption, avoiding frequent water additions, and improving test continuity. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of the test device in a preferred embodiment of the present invention;
[0017] Figure 2 This is a cross-sectional view of the test device in a preferred embodiment of the present invention;
[0018] Figure 3 This is a schematic cross-sectional view of the water tank in a preferred embodiment of the present invention;
[0019] Figure 4 This is a schematic diagram of the position adjustment block structure in a preferred embodiment of the present invention;
[0020] Figure 5 This is a cross-sectional view of the position adjustment block in a preferred embodiment of the present invention.
[0021] Figure label:
[0022] 1. Water tank; 11. Baffle plate; 12. Recycle water pipe; 13. Liquid level gauge; 14. No. 1 nozzle replacement slot; 111. No. 1 water storage tank; 112. No. 2 water storage tank; 113. Through hole;
[0023] 2. Mounting housing; 21. Mounting groove; 22. Water recovery tank; 211. Direction adjustment groove; 212. Connecting groove; 213. Limiting shaft; 214. Lead screw;
[0024] 3. Position adjustment block; 31. Rotating groove; 32. Screw nut; 33. Support plate; 34. Clamping block; 35. Water pumping pipe; 311. Limiting hole; 331. Mounting plate; 332. Rotating shaft; 341. Spring; 342. Bolt. Detailed Implementation
[0025] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.
[0026] This embodiment provides a water spray head testing device, including a water tank 1, a partition 11 fixedly installed inside the water tank 1, the partition 11 dividing the water tank 1 into a first water storage tank 111 and a second water storage tank 112, a through hole 113 through the side wall of the partition 11, an installation housing 2 fixedly installed on the side wall of the water tank 1, an installation groove 21 opened inside the installation housing 2, two limiting shafts 213 fixedly installed in the installation groove 21, and also includes: a position adjustment block 3, the position adjustment block 3 is slidably installed at the limiting shaft 213, a rotating groove 31 is opened on the upper surface of the position adjustment block 3, a support plate 33 is rotatably installed at the rotating groove 31, two installation plates 331 are symmetrically fixedly installed on the upper surface of the support plate 33, a spring 341 is fixedly installed on one side of the installation plate 331, a clamping block 34 is fixedly installed on the other end of the spring 341, a water suction pipe 35 is clamped between the two clamping blocks 34, a spray head is fixedly installed at one end of the water suction pipe 35, and the test position of the spray head is adjusted by sliding the position adjustment block 3 and rotating the support plate 33;
[0027] like Figure 2 , Figure 3 As shown, a lead screw 214 is rotatably installed in the mounting slot 21. One end of the lead screw 214 passes through the mounting housing 2 and is exposed to the outside. A motor is fixedly installed on the side wall of the mounting housing 2. The output shaft of the motor is fixedly connected to the lead screw 214. The motor provides power for the rotation of the lead screw 214.
[0028] like Figure 2 , Figure 4 As shown, a lead screw nut 32 is fixedly installed at the center of the lower surface of the position adjustment block 3. The lead screw nut 32 is threadedly engaged with the lead screw 214. Two limiting holes 311 are opened through the side wall of the position adjustment block 3. The position adjustment block 3 is slidably mounted on the limiting shaft 213 through the limiting holes 311. The cooperation between the limiting holes 311 and the limiting shaft 213 ensures the stability of movement, avoids shaking during adjustment, and ensures the accuracy of test data.
[0029] like Figure 5 As shown, a rotating shaft 332 is fixedly installed at the center of the lower surface of the support plate 33. The rotating shaft 332 is rotatably installed in the rotating groove 31. A second motor is fixedly installed at the bottom of the rotating groove 31. The output shaft of the second motor is fixedly connected to the rotating shaft 332. The second motor provides power for the rotation of the rotating shaft 332. As the support plate 33 rotates, the position adjustment block 3 slides along the limit shaft 213, thereby adjusting the position of the sprinkler head to simulate the water spraying effect under different installation angles and spatial positions, ensuring that the test data is closer to the actual application scenario.
[0030] like Figure 4 , Figure 5 As shown, a screw hole is provided through the side wall of the mounting plate 331, and a bolt 342 is installed in the screw hole. One end of the bolt 342 is pressed against the side wall of the clamping block 34. One side of the clamping block 34 has an arc-shaped structure. The arc-shaped clamping block 34, which is pre-tightened by the spring 341, is finely adjusted with the bolt 342 to firmly fix the water pipe 35 of different diameters and is compatible with most nozzle models on the market.
[0031] like Figure 1 , Figure 2 As shown, a recycling water tank 22 is fixedly installed on one side of the housing 2, and a recycling water pipe 12 is fixedly installed on one side of the recycling water tank 22. The other end of the recycling water pipe 12 is fixedly installed on one side of the water tank 1. The recycling water pipe 12 connects the first water storage tank 111 and the second water storage tank 112. The liquid in the first water storage tank 111 and the second water storage tank 112 is transported back to the recycling water tank 22 through the recycling water pipe 12 to realize water recycling, thereby reducing the consumption of experimental water, avoiding frequent water addition, and improving the continuity of testing.
[0032] like Figure 2 , Figure 3 As shown, the side wall of the mounting housing 2 is provided with a connecting groove 212 that connects to the mounting groove 21. One end of the water pumping pipe 35 passes through the connecting groove 212 and is located in the recycling water tank 22. The side wall of the mounting housing 2 is provided with a direction adjustment groove 211 that connects to the second water storage tank 112. One end of the water pumping pipe 35 passes through the direction adjustment groove 211 and is located in the second water storage tank 112.
[0033] like Figure 2 , Figure 3 As shown, a through hole 113 is provided through the side wall of the partition 11, a liquid level gauge 13 is fixedly installed on the side wall of the water tank 1, and a nozzle replacement slot 14 is provided on the side wall of the water tank 1 to connect to the second water storage tank 112, and the nozzle can be replaced through the nozzle replacement slot 14.
[0034] like Figure 1 As shown, water tank 1 is made of transparent acrylic material. It is used with liquid level gauge 13 to observe water level changes and nozzle working status in real time, which is convenient for data recording.
[0035] In practical use, the sprinkler head to be tested is installed at one end of the suction pipe 35, and the other end of the suction pipe 35 is inserted into the water recovery tank 22 for water intake. The bolts 342 in the mounting plate 331 are tightened, and the bolts 342 push the clamping block 34. The clamping block 34 clamps and fixes the suction pipes 35 of different sizes, supporting testing of multiple sprinkler head models without frequent clamp changes, thus improving equipment compatibility and efficiency. By rotating the support plate 33, the position adjustment block 3 slides along the limiting shaft 213, thereby adjusting the position of the sprinkler head to simulate the spraying effect under different installation angles and spatial positions, ensuring that the test data is closer to the actual application scenario. A water recycling tank 22 is fixedly installed on one side of the housing 2, and a water recycling pipe 12 is fixedly installed on one side of the water recycling tank 22. The other end of the water recycling pipe 12 is fixedly installed on one side of the water tank 1. The water recycling pipe 12 connects the first water storage tank 111 and the second water storage tank 112. The liquid in the first water storage tank 111 and the second water storage tank 112 is transported back to the water recycling tank 22 through the water recycling pipe 12, realizing water recycling, reducing experimental water consumption, thereby avoiding frequent water addition and improving the continuity of testing.
[0036] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A sprinkler head testing device, comprising a water tank (1), characterized in that, The water tank (1) is fixedly installed with a partition (11), which divides the water tank (1) into a first water storage tank (111) and a second water storage tank (112). A through hole (113) is opened through the side wall of the partition (11). An installation housing (2) is fixedly installed on the side wall of the water tank (1). An installation groove (21) is opened in the installation housing (2). Two limiting shafts (213) are fixedly installed in the installation groove (21). The water tank (1) also includes: The position adjustment block (3) is slidably installed at the limit shaft (213). The upper surface of the position adjustment block (3) is provided with a rotating groove (31). A support plate (33) rotates at the rotating groove (31). Two mounting plates (331) are symmetrically fixedly installed on the upper surface of the support plate (33). A spring (341) is fixedly installed on one side of the mounting plate (331). A clamping block (34) is fixedly installed on the other end of the spring (341). A water suction pipe (35) is clamped between the two clamping blocks (34). A nozzle is fixedly installed at one end of the water suction pipe (35). The test position of the nozzle is adjusted by sliding the position adjustment block (3) and rotating the support plate (33).
2. The sprinkler head testing device according to claim 1, characterized in that, A lead screw (214) is rotatably installed in the mounting groove (21), with one end of the lead screw (214) penetrating the mounting housing (2) and exposed to the outside.
3. The sprinkler head testing device according to claim 1, characterized in that, A lead screw nut (32) is fixedly installed at the center of the lower surface of the position adjustment block (3). The lead screw nut (32) is threadedly engaged with the lead screw (214). Two limiting holes (311) are opened through the side wall of the position adjustment block (3). The position adjustment block (3) is slidably installed on the limiting shaft (213) through the limiting holes (311).
4. The sprinkler head testing device according to claim 1, characterized in that, A rotating shaft (332) is fixedly installed at the center of the lower surface of the support plate (33), and the rotating shaft (332) is rotatably installed in the rotating groove (31).
5. The sprinkler head testing device according to claim 1, characterized in that, The mounting plate (331) has a through screw hole on its side wall, and a bolt (342) is installed in the screw hole with a thread. One end of the bolt (342) is pressed against the side wall of the clamping block (34), and one side of the clamping block (34) has an arc-shaped structure.
6. The sprinkler head testing device according to claim 1, characterized in that, A recycling water tank (22) is fixedly installed on one side of the mounting housing (2), and a recycling water pipe (12) is fixedly installed on one side of the recycling water tank (22). The other end of the recycling water pipe (12) is fixedly installed on one side of the water tank (1). The recycling water pipe (12) connects the first water storage tank (111) and the second water storage tank (112).
7. The sprinkler head testing device according to claim 1, characterized in that, The side wall of the mounting housing (2) is provided with a connecting groove (212) that connects to the mounting groove (21). One end of the water pump (35) passes through the connecting groove (212) and is located in the recycling water tank (22). The side wall of the mounting housing (2) is provided with a direction adjustment groove (211) that connects to the second water storage tank (112). One end of the water pump (35) passes through the direction adjustment groove (211) and is located in the second water storage tank (112).
8. The sprinkler head testing device according to claim 1, characterized in that, The partition (11) has a through hole (113) on its side wall, a liquid level gauge (13) is fixedly installed on the side wall of the water tank (1), and a nozzle replacement slot (14) is provided on the side wall of the water tank (1) to connect to the second water storage tank (112).
9. The sprinkler head testing device according to claim 1, characterized in that, The water tank (1) is made of transparent acrylic material.