Indoor fire sprinkler function detection device
By designing an indoor fire sprinkler head detection device with supporting and processing mechanisms, the problem of limited detection range of existing devices has been solved, enabling effective detection and simplified cleaning of different types of sprinklers.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-27
- Publication Date
- 2026-03-31
AI Technical Summary
Existing indoor fire sprinkler head function testing devices can only test sprinkler heads with fusible elements, and cannot be applied to sprinkler heads with glass bulbs, thus limiting the testing range.
A detection device comprising a support mechanism and a processing mechanism is designed. The support mechanism includes a heating mechanism and a water storage chamber, and the processing mechanism includes a guide platform and a filter screen. By heating the nozzle and filtering the nozzle debris using the guide platform and the filter screen, different types of nozzles can be detected.
The applicability of the detection device has been improved, enabling it to effectively detect different types of fire sprinklers, especially glass bulb sprinklers, and simplifying the cleaning process.
Smart Images

Figure CN224066330U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire sprinkler head function testing technology, and in particular to an indoor fire sprinkler head function testing device. Background Technology
[0002] An existing device, CN 213159123 U, describes a functional testing device for indoor fire sprinklers. Several sampled sprinklers are threaded onto the lower end of a distribution pipe. Tap water is added to a heating chamber, which heats the water to a certain temperature. Once the water reaches a certain temperature, a valve is opened, and the hot water flows through the supply pipe and distribution pipe into the sprinklers. The hot water transfers heat to the sprinklers, and when the sprinklers reach a certain temperature, the chrome plating melts, allowing water to spray. This device can detect which sprinklers are malfunctioning, preventing them from failing to extinguish fires. However, this testing device is only applicable to sprinklers with fusible elements and is not suitable for glass bulb sprinklers, limiting its testing range and affecting its effectiveness. Utility Model Content
[0003] The purpose of this invention is to provide an indoor fire sprinkler head function testing device to solve the above-mentioned problems.
[0004] This utility model achieves the above objectives through the following technical solutions:
[0005] An indoor fire sprinkler head function testing device includes a support mechanism, a heating mechanism mounted on the support mechanism, a testing cylinder, a partition inside the testing cylinder dividing it into an upper testing chamber and a lower water storage chamber, a water inlet pipe connected to the upper end of the testing cylinder, an installation head fixed to the upper inner side of the testing cylinder and connected to the water inlet pipe, a switch door mounted on the outer wall of the testing cylinder at the testing chamber, a ring-shaped electric heating plate surrounding the installation head and fixed to the top inner side of the testing cylinder, a temperature sensor mounted on one side of the installation head, a control box mounted on the upper end of the testing cylinder, and a treatment mechanism for treating the sprayed water mounted on the support mechanism; the treatment mechanism includes a guide platform mounted on the upper end of the partition, the upper end of the guide platform being an inverted cone inclined towards the center, a frustum at the bottom center of the guide platform, a filter screen cover fitted on the frustum, a central hole vertically penetrating the filter screen cover and the frustum, the central hole passing through the partition and communicating with the water storage chamber, and through holes evenly distributed around the circumference of the frustum near the bottom, communicating with the central hole.
[0006] Further configuration: An annular groove is provided on the inner wall of the detection cylinder above the guide platform. A scraper tangent to the guide platform is provided in the annular groove. A handle is fixedly provided on the scraper. The guide platform is fixedly connected to the detection cylinder and the partition.
[0007] Further details: The scraper is slidably connected to the annular groove, and the filter screen is movably connected to the frustum.
[0008] Further details: The filter screen is located on the upper side of the through hole on the round platform, and an observation window is embedded in the opening and closing door.
[0009] Further features: A drain pipe connected to the water storage chamber is installed on the lower part of the outer wall of the detection cylinder, and a switch valve is installed on the drain pipe. A liquid level window is installed on the front wall of the detection cylinder to observe the water in the water storage chamber.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0011] By incorporating heating and processing mechanisms within the support structure, the fire sprinkler head is installed, and then the annular electric heating plate is activated to heat the perimeter of the fire sprinkler head. After reaching a certain temperature, the operation of the fire sprinkler head is determined. If any obstructions on the fire sprinkler head are damaged, the water in the inlet pipe will spray out through the fire sprinkler head. During spraying, any debris on the fire sprinkler head will pass downwards through the guide platform and enter the filter screen. The water will then be filtered through the filter screen and enter the water storage chamber through the central hole. Afterward, the filter screen can be removed for cleaning. This system facilitates the testing and use of different types of fire sprinklers, improving its applicability. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 This is a structural schematic diagram of an indoor fire sprinkler head function testing device according to the present invention;
[0014] Figure 2 This is a schematic diagram of the main cross-sectional structure of the indoor fire sprinkler head function testing device described in this utility model;
[0015] Figure 3 This is a half-sectional structural diagram of an indoor fire sprinkler head function testing device according to the present invention;
[0016] Figure 4 This is a semi-sectional structural diagram of the guide platform of the indoor fire sprinkler head function testing device described in this utility model.
[0017] The annotations in the attached figures are explained as follows:
[0018] 11. Detection cylinder; 12. Baffle plate; 13. Inlet pipe; 14. Flow valve; 15. Mounting head; 16. Drain pipe; 17. Switch valve; 18. Switch door; 19. Liquid level window; 101. Annular chute; 21. Annular electric heating plate; 22. Temperature sensor; 23. Control box; 31. Guide platform; 32. Frustum; 33. Filter screen cover; 34. Center hole; 35. Scraper. Detailed Implementation
[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0021] The present invention will be further described below with reference to the accompanying drawings:
[0022] like Figures 1-4 As shown, an indoor fire sprinkler head function testing device includes a support mechanism, a heating mechanism on the support mechanism, and a processing mechanism on the support mechanism for treating the sprayed water.
[0023] In this embodiment: the support mechanism includes a detection cylinder 11, and a partition 12 is provided inside the detection cylinder 11 to divide the detection cylinder 11 into an upper detection chamber and a lower water storage chamber. The upper end of the detection cylinder 11 is connected to a water inlet pipe 13, and a flow valve 14 is installed on the water inlet pipe 13 for monitoring the water volume. An installation head 15 connected to the water inlet pipe 13 is fixed to the upper inner side of the detection cylinder 11. A fire sprinkler is installed at the lower end of the installation head 15 by threads. The other end of the water inlet pipe 13 is connected to a water source with a certain water pressure. A switch door 18 is installed on the outer wall of the detection cylinder 11 at the detection chamber. An observation window is embedded in the switch door 18. A drain pipe 16 connected to the water storage chamber is provided at the lower position of the outer wall of the detection cylinder 11. A switch valve 17 is installed on the drain pipe 16 for controlling the discharge of water in the water storage chamber. A liquid level window 19 for observing the water in the water storage chamber is provided on the front wall of the detection cylinder 11.
[0024] In this embodiment: the heating mechanism includes an annular electric heating plate 21 surrounding the mounting head 15. The annular electric heating plate 21 is fixed to the top of the inner side of the detection cylinder 11. A temperature sensor 22 is provided on one side of the mounting head 15. A control box 23 is installed at the upper end of the detection cylinder 11. The heating control of the annular electric heating plate 21 is performed by the control system in the control box 23. The temperature sensor 22 detects and provides feedback on the ambient temperature. Both the temperature sensor 22 and the control system of the control box 23 are existing technologies. Those skilled in the art know this technology and will not elaborate further here.
[0025] In this embodiment: the processing mechanism includes a guide platform 31 disposed on the upper end of the partition 12. The upper end of the guide platform 31 is an inverted cone shape inclined towards the center. A frustum 32 is disposed at the bottom center of the guide platform 31. A filter screen cover 33 is fitted on the frustum 32. A central hole 34 is vertically penetrating the filter screen cover 33 and the frustum 32. The central hole 34 passes through the partition 12 and communicates with the water storage chamber. The frustum 32 has through holes evenly distributed around its circumference near the bottom, communicating with the central hole 34. An annular groove 101 is provided on the inner wall of the detection cylinder 11 above the guide platform 31. A scraper 35 tangent to the guide platform 31 is disposed in the annular groove 101. A handle is fixedly disposed on the scraper 35. The guide platform 31 is connected to the detection cylinder 11 and the partition 12. Fixed connection; scraper 35 is slidably connected to annular slide groove 101, and filter screen 33 is movably connected to frustum 32; filter screen 33 is located on the upper side of the through hole on frustum 32. When the fire sprinkler head is functionally tested, if the obstruction on the fire sprinkler head is damaged, the water in the inlet pipe 13 will spray out through the fire sprinkler head. When spraying out, the broken objects on the fire sprinkler head will pass downward through guide platform 31 and enter the filter screen 33. The water will be filtered by the filter screen 33 and enter the water storage chamber through the central hole 34. At the same time, after the test is completed, the switch door 18 can be opened, and the scraper 35 can be rotated in annular slide groove 101 to make the broken objects adhering to guide platform 31 enter the filter screen 33 downward. Then the filter screen 33 can be removed for cleaning.
[0026] The working principle and usage process of this utility model are as follows: The indoor fire sprinkler to be tested is installed on the mounting head 15. The annular electric heating plate 21 is turned on to heat the periphery of the fire sprinkler. After the heating temperature reaches a certain value, it is determined whether the fire sprinkler is working. If the obstruction on the fire sprinkler is damaged, the water in the inlet pipe 13 will spray out through the fire sprinkler. When spraying out, the broken objects on the fire sprinkler will pass downward through the guide platform 31 and enter the filter screen 33. The water is filtered by the filter screen 33 and enters the water storage chamber through the central hole 34. At the same time, after the test is completed, the switch door 18 can be opened, and the scraper 35 can be rotated in the annular slide groove 101 to make the broken objects adhering to the guide platform 31 fall downward into the filter screen 33. Then the filter screen 33 can be removed for cleaning, which is convenient for testing different types of fire sprinklers.
[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A kind of indoor fire sprinkler function detection device, including support mechanism, heating mechanism is arranged on the support mechanism, the support mechanism includes detection cylinder (11), the partition (12) is arranged in the detection cylinder (11), the detection cylinder (11) is divided into the detection cavity of upper side and the water storage cavity of lower side, the inlet pipe (13) is communicated with the upper end of the detection cylinder (11), the mounting head (15) that is communicated with the inlet pipe (13) is fixed on the inner side upper end of the detection cylinder (11), the switch door (18) is installed on the outer wall of the detection cylinder (11) and is located at detection cavity, the heating mechanism includes annular electric heating plate (21) around the mounting head (15) circle, the annular electric heating plate (21) is fixed on the inner side top of the detection cylinder (11), temperature sensor (22) is arranged on one side of the mounting head (15), control box (23) is installed on the upper end of the detection cylinder (11), it is characterized by: The support mechanism is provided with a treatment mechanism for treating the sprayed water; the treatment mechanism comprises a guide table (31) provided at the upper end of the partition plate (12), the upper end of the guide table (31) is an inverted cone inclined towards the center, the center bottom of the guide table (31) is provided with a circular table (32), the circular table (32) is sleeved with a filter cover (33), the filter cover (33) and the circular table (32) are vertically penetrated with a center hole (34), the center hole (34) communicates with the water storage cavity through the partition plate (12), and the circular table (32) is uniformly distributed with through holes close to the bottom position and communicating with the center hole (34).
2. A functional test device for a ceiling fire sprinkler according to claim 1, wherein: An annular sliding groove (101) is formed on the inner wall of the detection cylinder (11) and located above the guide table (31), the annular sliding groove (101) is provided with a scraper (35) tangent to the guide table (31), the scraper (35) is fixedly provided with a handle, and the guide table (31) is fixedly connected with the detection cylinder (11) and the partition plate (12).
3. A functional test device for a ceiling fire sprinkler according to claim 2 wherein: The scraper (35) is slidably connected with the annular sliding groove (101), and the filter cover (33) is movably connected with the circular table (32).
4. A functional test device for a ceiling fire sprinkler head as defined in claim 1, wherein: The filter cover (33) is located above the through hole of the circular table (32), and the switch door (18) is embedded with an observation window.
5. A functional test device for a ceiling fire sprinkler head as defined in claim 1, wherein: A drain pipe (16) communicating with the water storage cavity is arranged at the lower position of the outer wall of the detection cylinder (11), the switch valve (17) is mounted on the drain pipe (16), and the liquid level window (19) for observing the water in the water storage cavity is arranged on the front wall of the detection cylinder (11).
Citation Information
Patent Citations
Indoor fire sprinkler function detection device
CN213159123U