Spray head pressure testing device and spray head pressure testing system

Abstract

The utility model relates to a spray head pressure testing device and a spray head pressure testing system, the spray head pressure testing device comprises a main body part, a water inlet part, an exhaust part, a pressure measuring device used for detecting water pressure and a plurality of mounting structures used for mounting pressure testing spray heads, the water inlet is formed in one end of the main body part in the length direction of the main body part, the water inlet part is communicated with the hollow cavity through the water inlet, the exhaust part is arranged on the main body part, and the mounting structures are sequentially distributed at intervals in the length direction of the main body part; and the exhaust part and the mounting structures are communicated with the hollow cavity. According to the nozzle pressure testing device and the nozzle pressure testing system, the nozzle pressure testing efficiency is improved, the construction progress is accelerated, and the labor cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of building equipment, in particular to a nozzle pressure testing device and a nozzle pressure testing system. Background Art

[0002] At present, the automatic sprinkler fire extinguishing system is the preferred automatic fire extinguishing device for buildings (especially public buildings and large shopping malls). The number of sprinklers ranges from hundreds to thousands. The on-site inspection of sprinklers is the key to sprinkler quality control.

[0003] At present, nozzle pressure testing is required to inspect the quality of nozzles. Water is passed through the nozzles to detect whether the nozzles will leak or deform under the test water pressure for a certain period of time. The existing nozzle pressure testing device can only perform nozzle pressure testing on one nozzle at a time, and the pressure testing efficiency is low. Therefore, it is necessary to invent a nozzle pressure testing device to improve the nozzle pressure testing efficiency, thereby speeding up the construction progress and saving labor costs. Utility Model Content

[0004] The main purpose of the utility model is to provide a nozzle pressure testing device and a nozzle pressure testing system, aiming to provide a nozzle pressure testing device that can perform nozzle pressure testing in batches to improve the pressure testing efficiency.

[0005] To achieve the above-mentioned purpose, the utility model proposes a nozzle pressure test device, including a main body, a water inlet, an exhaust part, a pressure measuring device for detecting water pressure and a plurality of mounting structures for installing a pressure test nozzle, the main body is provided with a hollow cavity, the main body is provided with the water inlet at one end in its length direction, the water inlet is connected with the hollow cavity through the water inlet, the exhaust part is arranged on the main body, and the mounting structures are spaced in sequence along the length direction of the main body, and the exhaust part and the mounting structures are all connected with the hollow cavity.

[0006] According to some embodiments of the utility model, the main body is provided with a plurality of test ports spaced apart in its length direction, the mounting structure comprises a mounting portion and a connecting portion extending in a direction away from the main body, each of the connecting portions is connected to the test port in a one-to-one correspondence, one end of the mounting portion is connected to the connecting portion, and the other end has a mounting head for installing the pressure test nozzle.

[0007] According to some embodiments of the utility model, the installation structure also includes a quick-release assembly, the quick-release assembly includes a clamping portion and a matching portion, the clamping portion and the matching portion are detachably connected, and the connecting portion and the installation portion are connected via the clamping portion and the matching portion.

[0008] According to some embodiments of the present invention, sealing parts are provided at both ends of the mounting part.

[0009] According to some embodiments of the present invention, the distances from the mounting portions of the mounting structures to the side surfaces of the main body are equal.

[0010] According to some embodiments of the present invention, the pressure measuring device includes a main pressure gauge and multiple sub-pressure gauges, the main pressure gauge is arranged on the side of the main body close to one end of the water inlet part, and each of the sub-pressure gauges is connected to the connecting part one by one.

[0011] According to some embodiments of the utility model, a pressure test shell is further included, wherein a pressure test cavity is provided in the pressure test shell, and each of the mounting structures extends into the pressure test cavity so that the pressure test nozzle is located in the pressure test cavity.

[0012] According to some embodiments of the present invention, the exhaust portion is disposed on an upper side portion of the main body away from one end of the water inlet portion.

[0013] According to some embodiments of the utility model, a drainage part is further included. The drainage part is arranged at one end of the main body away from the water inlet part, and the drainage part is communicated with the hollow cavity. A drainage valve is provided on the drainage part.

[0014] In addition, the utility model also provides a nozzle pressure test system, which includes a water pumping device and any one of the above-mentioned nozzle pressure test devices, wherein the nozzle pressure test device includes a main body, a water inlet, an exhaust part, a pressure measuring device for detecting water pressure and a plurality of mounting structures for installing a pressure test nozzle, wherein a hollow cavity is provided in the main body, and the main body is provided with the water inlet at one end thereof in the length direction, and the water inlet is connected with the hollow cavity through the water inlet, and the exhaust part is provided on the main body, and each of the mounting structures is spaced in sequence along the length direction of the main body, and the exhaust part and each of the mounting structures are connected with the hollow cavity, and the water pumping device is connected with the water inlet.

[0015] The utility model has at least the following beneficial effects:

[0016] In the utility model, since the plurality of mounting structures are sequentially spaced along the length direction of the main body, and the mounting structures are used to install the pressure test nozzles, the test personnel can install the plurality of pressure test nozzles on the nozzle pressure test device. When the nozzle pressure test starts, the test water flows from the water inlet into the hollow cavity of the main body. As the water in the hollow cavity gradually increases, the air in the hollow cavity is discharged from the exhaust part. Then the test water flows through the mounting structure into the pressure test nozzle. When the water pressure detected by the pressure measuring device reaches the required water pressure for the test, the water inlet stops taking in water. After the pressure test nozzle is under the test water pressure for a certain period of time, the test personnel check whether the pressure test nozzle is leaking or deformed. The nozzle pressure test device can test multiple pressure test nozzles at the same time, which improves the efficiency of nozzle pressure test, thereby speeding up the construction progress and saving labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the structure of a nozzle pressure test device provided by an embodiment of the utility model;

[0019] Figure 2 for Figure 1 A cross-sectional view of the connecting portion;

[0020] Figure 3 for Figure 1 A front view of the mounting portion;

[0021] Figure 4 A schematic structural diagram of a nozzle pressure testing system provided in an embodiment of the utility model.

[0022] Description of reference numerals:

[0023] 1000-nozzle pressure test system; 100-nozzle pressure test device; 1-main body; 2-water inlet; 3-exhaust; 4-pressure measuring equipment; 41-main pressure gauge; 42-sub-pressure gauge; 5-installation structure; 51-connection; 52-installation; 53-quick release assembly; 531-clamping part; 532-matching part; 54-sealing part; 6-pressure test shell; 7-drainage part; 71-drainage valve; 200-water pumping device. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0026] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0027] The utility model provides a nozzle pressure testing device and a nozzle pressure testing system. Figures 1 to 4 The utility model provides a specific embodiment of a nozzle pressure testing device and a nozzle pressure testing system.

[0028] like Figure 1 As shown, an embodiment of the utility model provides a nozzle pressure test device 100, including a main body 1, a water inlet 2, an exhaust part 3, a pressure measuring device 4 for detecting water pressure and a plurality of mounting structures 5 for mounting a pressure test nozzle, wherein a hollow cavity is provided in the main body 1, and the main body 1 is provided with the water inlet at one end in the length direction thereof, and the water inlet 2 is connected with the hollow cavity through the water inlet, and the exhaust part 3 is provided on the main body 1, and each of the mounting structures 5 is distributed in sequence at intervals along the length direction of the main body 1, and the exhaust part 3 and each of the mounting structures 5 are connected with the hollow cavity.

[0029] Specifically, the connection method between the various components in the nozzle pressure testing device 100 can be welding or other fixing methods known to those skilled in the art.

[0030] In the present utility model, since the plurality of mounting structures 5 are sequentially spaced along the length direction of the main body 1, and the mounting structures 5 are used to install the pressure test nozzles, the test personnel can install the plurality of pressure test nozzles on the nozzle pressure test device 100. When the nozzle pressure test starts, the test water flows from the water inlet 2 into the hollow cavity of the main body 1. As the water in the hollow cavity gradually increases, the air in the hollow cavity is discharged from the exhaust part 3. Then the test water flows through the mounting structure 5 into the pressure test nozzle. When the water pressure detected by the pressure measuring device 4 reaches the required water pressure for the test, the water inlet 2 stops taking in water. After the pressure test nozzle is under the test water pressure for a certain period of time, the test personnel check whether the pressure test nozzle is leaking or deformed. The nozzle pressure test device 100 can test multiple pressure test nozzles at the same time, which improves the nozzle pressure test efficiency, thereby speeding up the construction progress and saving labor costs.

[0031] Specifically, the main body 1 can be made by welding metal blind plates at both ends of a steel pipe, the water inlet 2, the exhaust part 3 and the multiple mounting structures 5 are all made of steel pipes, and each component of the nozzle pressure test device 100 can be made of leftover engineering materials, with low production costs.

[0032] It should be noted that the plurality of mounting structures 5 are all arranged on the same side of the main body 1 to avoid inconsistent water pressures on the pressure test nozzles mounted on the mounting structures 5 due to large height differences, which would affect the final experimental results.

[0033] Generally speaking, since one end of the mounting structure 5 is connected to the main body 1 and the other end is used to mount the pressure test nozzle, the nozzle pressure test device 100 can only be adapted to a pressure test nozzle of one specification. In order to improve the applicability of the nozzle pressure test device 100, in some embodiments, such as Figure 1 As shown, the main body 1 is provided with a plurality of test ports spaced apart in the length direction thereof, the mounting structure 5 comprises a mounting portion 52 and a connecting portion 51 extending in a direction away from the main body 1, each connecting portion 51 is connected to each test port in a one-to-one correspondence, one end of the mounting portion 52 is connected to the connecting portion 51, and the other end has a mounting head for mounting the pressure test nozzle. With such a configuration, the connecting portion 51 can be welded and fixed to the test port, and different mounting portions 52 can be replaced according to different specifications of pressure test nozzles, so as to adapt to more specifications of pressure test nozzles.

[0034] It should be noted that the distances between the test ports are kept consistent to ensure that the test conditions of each pressure test nozzle are consistent.

[0035] Specifically, since the nozzle pressure test test needs to ensure the sealing of the connection between each component, it is necessary to avoid insufficient sealing resulting in insufficient water pressure on the nozzle, which will affect the test results and affect the tester's judgment on whether the nozzle is leaking. Therefore, in some embodiments, Figure 3 As shown, both ends of the mounting portion 52 are provided with sealing portions 54, and the sealing portions 54 are made of elastic material. The sealing portions 54 may be sealing rings, sealing pads or other sealing components known to those skilled in the art.

[0036] Furthermore, when performing a nozzle pressure test experiment, it is necessary to first install the pressure test nozzle on the mounting portion 52, and then connect the mounting portion 52 with the connecting portion 51. The installation and connection of each component before the experiment is too cumbersome. In order to improve the experimental efficiency, in some embodiments, the mounting structure 5 also includes a quick-release assembly 53, and the quick-release assembly 53 includes a snap-fit ​​portion 531 and a matching portion 532. The snap-fit ​​portion 531 and the matching portion 532 are detachably connected, and the connecting portion 51 and the mounting portion 52 are connected through the snap-fit ​​portion 531 and the matching portion 532. With such a configuration, the connecting portion 51 can be quickly connected to the mounting portion 52 through the quick-release assembly 53, thereby reducing the installation and connection time of each component before the experiment, thereby improving the experimental efficiency.

[0037] Furthermore, since the quick-release assembly 53 is known to those skilled in the art in various forms, as long as it can achieve the function of quick disassembly and assembly, in some embodiments, such as Figure 2 and Figure 3 As shown, the two sides of one end of the mounting portion 52 are provided with a snap-fit ​​block 531a, and the end surface of one end of the connecting portion 51 is provided with a snap-fit ​​opening 532a corresponding to the snap-fit ​​block 531a. One of the snap-fit ​​portion 531 and the matching portion 532 is the snap-fit ​​block 531a, and the other is the snap-fit ​​opening 532a. Align the snap-fit ​​block 531a with the snap-fit ​​opening 532a, insert one end of the mounting portion 52 into the connecting portion 51, and then rotate the mounting portion 52 to quickly complete the connection between the mounting portion 52 and the connecting portion 51. Such a configuration is not only simple in structure and easy to produce, but also has no learning cost, and the test personnel can get started faster.

[0038] In the nozzle pressure test experiment, it is necessary to ensure that the test conditions of each pressure test nozzle are consistent as much as possible to avoid the influence of different test conditions on the test results. Therefore, in some embodiments, the distance between the mounting portion 52 of each mounting structure 5 and the side of the main body 1 is equal. Such a setting ensures that the height of each pressure test nozzle is consistent, thereby eliminating the influence of height on water pressure.

[0039] In order to monitor the water pressure of each pressure test nozzle in real time and avoid the influence of the experimental results due to the different water pressures of each pressure test nozzle, in some embodiments, Figure 1 As shown, the pressure measuring device 4 includes a main pressure gauge 41 and a plurality of sub-pressure gauges 42. The main pressure gauge 41 is arranged on the side of the main body 1 close to one end of the water inlet 2, and each sub-pressure gauge 42 is connected to the connecting portion 51 in a one-to-one correspondence. In this arrangement, the water pressure of the main body 1 is detected by the main pressure gauge 41, and each sub-pressure gauge 42 detects the water pressure of each pressure test nozzle, so as to ensure that the water pressure of each pressure test nozzle is consistent.

[0040] It should be noted that there is no limitation on the position of the main pressure gauge 41 , as long as the main pressure gauge 41 can detect the water pressure of the main body 1 . For example, the main pressure gauge 41 can also be disposed on the water inlet 2 .

[0041] When an unqualified pressure test nozzle is subjected to a pressure test, the pressure test nozzle may burst under the action of water pressure. In order to avoid causing harm to the tester, in some embodiments, Figure 1 As shown, the nozzle pressure test device 100 further includes a pressure test housing 6, a pressure test cavity is provided in the pressure test housing 6, and each of the mounting structures 5 extends into the pressure test cavity so that the pressure test nozzle is in the pressure test cavity. In this arrangement, all the pressure test nozzles are covered by the pressure test housing 6, and even if an unqualified pressure test nozzle bursts during the experiment, the water flow and the fragments of the pressure test nozzle will be blocked by the side wall of the pressure test housing 6, and will not cause harm to the tester.

[0042] Since the nozzle pressure test experiment is mainly to test the bearing capacity of the nozzle under the set water pressure, it is necessary to exhaust all the air in the nozzle pressure test device 100 during the experiment to avoid the residual air affecting the experimental results. Figure 1 As shown, the exhaust part 3 is arranged at the upper side of the main body 1 away from the water inlet 2. In this arrangement, since the density of air is lower than that of water, after water enters the main body 1, the air will gather at the upper part of the hollow cavity. The exhaust part 3 is arranged at the upper side of the main body 1, which is conducive to exhausting the air in the hollow cavity. At the same time, when water flows into the hollow cavity from the water inlet 2, the air is away from the water inlet 2. The exhaust part 3 is arranged at the end of the main body 1 away from the water inlet 2, which is conducive to exhausting the air.

[0043] After the nozzle pressure test is completed, the nozzle cannot be directly removed to avoid the sprayed water flow injuring the test personnel. Pressure relief treatment is required. Therefore, in some embodiments, Figure 1As shown, the nozzle pressure test device 100 further includes a drainage portion 7, which is disposed at one end of the main body 1 away from the water inlet 2, and the drainage portion 7 is in communication with the hollow cavity, and a drainage valve 71 is disposed on the drainage portion 7. In this arrangement, the water in the hollow cavity is discharged through the drainage portion 7 to complete the pressure relief process, and at the same time, the drainage valve 71 is disposed on the drainage portion 7, which makes it more convenient to control the switch of the drainage portion 7.

[0044] In addition, if Figure 4 As shown, the utility model also provides a nozzle pressure test system 1000, the nozzle pressure test system 1000 includes a water pumping device 200 and any one of the nozzle pressure test devices 100 described above, the nozzle pressure test device 100 includes a main body 1, a water inlet 2, an exhaust part 3, a pressure measuring device 4 for detecting water pressure and a plurality of mounting structures 5 for mounting pressure test nozzles, a hollow cavity is provided in the main body 1, the main body 1 is provided with the water inlet at one end in the length direction thereof, the water inlet 2 is connected with the hollow cavity through the water inlet, the exhaust part 3 is provided on the main body 1, the mounting structures 5 are spaced in sequence along the length direction of the main body 1, and the exhaust part 3 and the mounting structures 5 are all connected with the hollow cavity, and the water pumping device 200 is connected with the water inlet 2.

[0045] It should be noted that the water pumping device 200 includes but is not limited to an electric pressure test pump or other equipment with a water pumping function known to those skilled in the art.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A nozzle pressure test device, characterized in that: The utility model comprises a main body, a water inlet, an exhaust part, a pressure measuring device for detecting water pressure and a plurality of mounting structures for mounting pressure test nozzles. A hollow cavity is arranged in the main body, a water inlet is opened at one end of the main body in the length direction, the water inlet is connected with the hollow cavity through the water inlet, the exhaust part is arranged on the main body, and each of the mounting structures is distributed in sequence at intervals along the length direction of the main body, and the exhaust part and each of the mounting structures are connected with the hollow cavity.

2. The nozzle pressure testing device according to claim 1, characterized in that: The main body is provided with a plurality of test ports spaced apart in the length direction thereof, the mounting structure comprises a mounting portion and a connecting portion extending in a direction away from the main body, each of the connecting portions is connected to the test port in a one-to-one correspondence, one end of the mounting portion is connected to the connecting portion, and the other end has a mounting head for mounting the pressure test nozzle.

3. The nozzle pressure testing device according to claim 2, characterized in that: The mounting structure further comprises a quick-release assembly, which comprises a clamping portion and a matching portion, wherein the clamping portion and the matching portion are detachably connected, and the connecting portion and the mounting portion are connected via the clamping portion and the matching portion.

4. The nozzle pressure testing device according to claim 2, characterized in that: Both ends of the mounting portion are provided with sealing portions.

5. The nozzle pressure testing device according to claim 2, characterized in that: The distances from the mounting parts of the mounting structures to the side surfaces of the main body are equal.

6. The nozzle pressure testing device according to claim 2, characterized in that: The pressure measuring device comprises a main pressure gauge and a plurality of sub-pressure gauges. The main pressure gauge is arranged on the side of the main body close to one end of the water inlet portion, and each of the sub-pressure gauges is connected to the connecting portion in a one-to-one correspondence.

7. The nozzle pressure testing device according to claim 1, characterized in that: It also includes a pressure test shell, in which a pressure test cavity is arranged, and each of the mounting structures extends into the pressure test cavity so that the pressure test nozzle is located in the pressure test cavity.

8. The nozzle pressure testing device according to claim 1, characterized in that: The exhaust portion is arranged on an upper side portion of the main body away from one end of the water inlet portion.

9. The nozzle pressure testing device according to claim 1, characterized in that: It also includes a drainage part, which is arranged at one end of the main body away from the water inlet part, and the drainage part is communicated with the hollow cavity, and a drainage valve is arranged on the drainage part.

10. A nozzle pressure test system, characterized in that: It comprises a water pumping device and a nozzle pressure testing device as described in any one of claims 1 to 9, wherein the water pumping device is connected to the water inlet.

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