Fire extinguisher pressure measuring device

Abstract

The utility model relates to the technical field of fire extinguisher performance detection equipment, and particularly discloses a pressure measuring device for a fire extinguisher. Comprising a bottom supporting table, a steel cylinder fixing structure arranged on the bottom supporting table and used for fixing a fire extinguisher steel cylinder, a top supporting table fixedly connected to the bottom supporting table and located above the steel cylinder fixing structure and a pressure measuring fixing structure arranged on the top supporting table, and a gas supply cylinder for supplying gas to the pressure measuring fixing structure is further arranged on one side of the bottom supporting table; the problems that according to a traditional fire extinguisher pressure measuring device, a fire extinguisher steel cylinder needs to be placed in water to judge whether the fire extinguisher steel cylinder meets the standard or not by observing whether bubbles are generated or not, and misjudgment is prone to occurring through naked eye judgment are solved.

Description

Technical Field

[0001] The present application relates to the technical field of fire extinguisher performance testing equipment, and specifically discloses a fire extinguisher pressure measuring device. Background Art

[0002] Fire extinguishers are portable fire-fighting tools. As a common fire-fighting equipment, they are usually stored in public places or places where fires may occur. Fire extinguishers use chemicals filled inside to extinguish fires. Different types of fire extinguishers have different shapes, styles, and ingredients filled in the barrel.

[0003] In the production process of fire extinguishers, since the fire extinguisher cylinder is a high-pressure pressure vessel, in order to ensure the quality and safety of the fire extinguisher, the fire extinguisher cylinder needs to be subjected to pressure resistance test and sealing test to ensure that each fire extinguisher cylinder has no leakage and meets the pressure resistance requirements. In the prior art, sampling detection is mostly used as a detection method.

[0004] In the prior art, there is a fire extinguisher pressure measuring device with authorization announcement number CN211676036U, which is used by installing an inflation device on the fire extinguisher cylinder to be tested, then placing the entire fire extinguisher cylinder in water, inflating the fire extinguisher cylinder to be tested, and judging whether the fire extinguisher cylinder has a leak by observing whether bubbles are generated in the water. However, when the fixing device and the support frame for installing the fire extinguisher cylinder are placed in the water, bubbles will also be generated, and in the subsequent observation process, it is difficult to identify some tiny bubbles with the naked eye. At the same time, in the detection process, the connection between the inflation device and the fire extinguisher cylinder needs to be placed in water. In the continuous pressure measurement process, after the previous pressure measurement is completed, water will stick to the connection and will enter the fire extinguisher cylinder to be tested for the next pressure measurement.

[0005] Therefore, in view of this, the inventor provides a fire extinguisher pressure measuring device to solve the above-mentioned problem. Utility Model Content

[0006] The utility model aims to solve the problem that the traditional fire extinguisher pressure measuring device needs to put the fire extinguisher cylinder into water to observe whether bubbles are generated to determine whether the fire extinguisher cylinder is compliant, and misjudgment is easy to occur by naked eye judgment.

[0007] In order to achieve the above-mentioned purpose, the basic scheme of the utility model provides a fire extinguisher pressure measuring device, including a bottom support platform, a cylinder fixing structure arranged on the bottom support platform for fixing the fire extinguisher cylinder, a top support platform fixedly connected to the bottom support platform and located above the cylinder fixing structure, and a pressure measuring fixing structure arranged on the top support platform, and a gas supply bottle for supplying gas to the pressure measuring fixing structure is also arranged on one side of the bottom support platform;

[0008] The pressure measuring fixed structure includes an inflation component arranged below the top supporting platform and a top lifting component arranged on the top supporting platform and used for adjusting the height of the inflation component. The inflation component includes a lifting plate controlled by the top lifting plate, an inflation joint fixedly connected to the lifting plate and connected to the gas supply bottle and sealably inserted into the top opening of the fire extinguisher cylinder, and a pressure measuring structure fixedly connected to the lifting plate and connected to the inner cavity of the fire extinguisher cylinder.

[0009] Furthermore, the cylinder fixing structure includes a fixing base which is arranged on the bottom supporting platform and is used to accommodate the bottom of the fire extinguisher cylinder.

[0010] Furthermore, the steel cylinder fixing structure also includes a slide rail fixedly connected to the bottom support platform, the fixed base is slidably connected to the slide rail, and the bottom support platform is provided with a base fixing member for fixing the fixed base.

[0011] Furthermore, guide grooves are respectively provided on both sides of the top support platform, and guide rods which can be slidably connected to the guide grooves are fixedly connected on both sides of the lifting plate.

[0012] Furthermore, an inflation baffle wrapping the inflation joint is fixedly connected to the lower end of the lifting plate, and the bottom end of the inflation baffle is bent inward to form a top wrapping portion that can wrap the top of the fire extinguisher cylinder.

[0013] Furthermore, the pressure measuring structure includes a pressure gauge fixedly connected to the lifting plate and a pressure measuring hose connected to the pressure gauge and extending out of the inflation joint.

[0014] The principle and effect of this scheme are:

[0015] 1. Compared with the prior art, the utility model uses a cylinder fixing structure to fix the fire extinguisher cylinder to be tested in the initial vertical direction, and then uses the pressure measurement fixing structure to completely place the inflation joint into the top opening of the fire extinguisher cylinder to be tested, and seal it with the inflation joint, and then supply gas to the inflation joint through the gas supply bottle to complete the inflation of the fire extinguisher cylinder.

[0016] 2. Compared with the prior art, the utility model is provided with a pressure measuring structure. After the fire extinguisher cylinder is inflated, the pressure measuring structure, which is fixedly connected to the lifting plate and can be communicated with the inner cavity of the fire extinguisher cylinder, no longer inflates the fire extinguisher cylinder. The pressure measuring structure is used to monitor in real time and continuously whether the pressure value in the fire extinguisher cylinder has changed. If the pressure value changes, it indicates that the fire extinguisher cylinder is not compliant. This solves the problem that the traditional fire extinguisher pressure measuring device needs to place the fire extinguisher cylinder in water to observe whether bubbles are generated to determine whether the fire extinguisher cylinder is compliant, and the problem of misjudgment is easy to occur by visual judgment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A schematic diagram of a fire extinguisher pressure measuring device proposed in an embodiment of the present application is shown;

[0019] Figure 2 A front view of a fire extinguisher pressure measuring device proposed in an embodiment of the present application is shown;

[0020] Figure 3 A partial schematic diagram of a fire extinguisher pressure measuring device proposed in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0021] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0022] The figure marks in the drawings of the specification include: bottom support platform 1, traveling platform 2, fixed platform 3, side uprights 4, slide rails 5, top support platform 6, lifting cylinder 7, guide rod 8, baffle 9, bottom lifting cylinder 10, semicircular protrusion 11, pressure gauge 12, inflation baffle 13, inflation joint 14, guide pile 15, gas supply bottle 16, meniscus 17.

[0023] A fire extinguisher pressure measuring device, for example Figure 1 As shown:

[0024] It includes a bottom support platform 1, a steel cylinder fixing structure installed on the bottom support platform 1, a top support platform 6 installed on the bottom support platform 1 and located above the steel cylinder fixing structure, and a pressure measurement fixing structure installed on the top support platform 6. A gas supply bottle 16 is also installed on one side of the bottom support platform 1.

[0025] The cylinder fixing structure includes two slide rails 5 installed on the bottom support platform 1 and parallel to each other, and a fixed base slidably installed on the two slide rails 5. The two ends of the two slide rails 5 are flush, and baffles 9 are fixedly installed on both ends of the two slide rails 5. The fixed base includes a traveling platform 2 and a fixed plate installed on the traveling platform 2. The bottom end of the traveling platform 2 is provided with two slide grooves for the slide rails 5 to slide in. In this embodiment, the slide rail 5 is a T-shaped slide rail 5, and the slide groove is a T-shaped slide groove.

[0026] Two main receiving holes are formed on the traveling platform 2, and a bottom driven lifting hole is formed between the two main receiving holes. Two protrusions are integrally formed on the fixed plate, which can be respectively placed in the main receiving holes. The top of the protrusion is recessed inward to form a receiving chamber for accommodating the bottom of the fire extinguisher cylinder. A secondary receiving hole is coaxially formed in the protrusion to reduce the contact area with the bottom of the fire extinguisher cylinder. A driven lifting rod is also integrally formed at the bottom of the fixed plate and is placed in the bottom driven lifting hole. A semicircular groove is formed at the bottom of the driven lifting rod.

[0027] A bottom lifting cylinder 10 is also fixedly installed at the bottom of the bottom supporting platform 1, and a bottom active lifting hole is opened on the bottom supporting platform 1. The output end of the bottom lifting cylinder 10 passes through the bottom active lifting hole, and a semicircular protrusion 11 that fits with the semicircular groove is installed on the top of the output end. The bottom lifting cylinder 10 and the semicircular protrusion 11 constitute a base fixing part.

[0028] Support rods are installed around the top support platform 6 and between the bottom support platform 1. The pressure measurement fixed structure includes an inflatable component installed below the top support platform 6 and a top lifting component installed on the top support platform 6 and used to adjust the height of the inflatable component.

[0029] The inflatable assembly includes a lifting plate, two guide rods 8 respectively installed on both sides of the lifting plate, an inflatable baffle 13 installed below the lifting plate, and two inflatable joints 14 respectively installed below the lifting plate and located in the inflatable baffle 13. The inflatable joint 14 can be replaced according to the top opening size of different fire extinguisher cylinders to be pressure-measured, and a sealing gasket is installed at the bottom of the inflatable joint 14, which can complete the sealing of the top opening after contacting and inserting into the fire extinguisher cylinder. Two guide piles 15 are also installed on the lifting plate, and a meniscus 17 is installed at the bottom of the guide piles 15. An air supply chamber for supplying air to the inflatable joint 14 is opened between the meniscus 17 and the guide piles 15, and an air supply hole is opened on the meniscus 17 to communicate with the air supply chamber. A pressure gauge 12 is installed on the meniscus 17, and a pressure hose connected to the pressure gauge 12 is also installed in the inflatable joint 14. The pressure gauge 12 and the pressure hose form a pressure measurement structure.

[0030] The top support platform 6 is provided with two guide grooves for the guide rod 8 to extend into and slide in. The two ends of the inflation baffle 13 are respectively bent inward to form a top wrapping portion, so that after the inflation connector 14 is completely inserted into the fire extinguisher cylinder, during the detection process, the top of the fire extinguisher cylinder can be prevented from being disengaged from the inflation baffle 13 when the fire extinguisher cylinder is pressurized and separated from the inflation connector 14, so that the fire extinguisher cylinder flies out and injures people.

[0031] The top lifting assembly includes a lifting cylinder 7 installed on the top support platform 6 for driving the lifting plate. In this embodiment, there are two main receiving holes and receiving chambers, which can measure the pressure of two fire extinguisher cylinders at the same time. Therefore, in this embodiment, a lifting cylinder 7 is provided for each fire extinguisher cylinder. Two lifting shaft holes are opened on the top support platform 6, and the output ends of the lifting cylinder 7 pass through the corresponding lifting shaft holes respectively. The output ends of the lifting cylinder 7 extend out of the lifting shaft holes and are fixed to the top ends of the guide piles 15 respectively.

[0032] The gas supply bottle 16 is connected to the gas supply holes on the two menisci 17 through the gas supply conduit to supply gas to the gas supply chamber and the inflation joint 14 .

[0033] In this embodiment, the front end of the slide rail 5 extends out of the top support platform 6 and allows the traveling platform 2 to be fully exposed. Side uprights 4 are also installed on the bottom support platform 1 on both sides of the slide rail 5 below the top support platform 6. A handle is also installed at the front end of the traveling platform 2.

[0034] When the utility model is used, the traveling platform 2 is first pulled out by the handle, and then the fire extinguisher cylinders to be tested are respectively placed in the accommodating chambers on the fixed plate, and then the traveling platform 2 is pushed back to the bottom of the top support platform 6, so that the semicircular protrusion 11 is aligned with the semicircular groove, wherein the fire extinguisher cylinder to be tested is a cylinder of a heptafluoropropane fire extinguisher;

[0035] Then, the lifting cylinder 7 is started, and the output end of the lifting cylinder 7 is extended to control the lifting plate to descend, so that the charging joint 14 is completely placed in the top opening of the fire extinguisher cylinder to be tested, and then the bottom lifting cylinder 10 is started to push the fixing plate upward to further clamp the fire extinguisher cylinder to be tested, so as to lift the bottom of the fire extinguisher cylinder to expose it, so as to prevent the bottom of the fire extinguisher cylinder from being blocked and affecting the pressure measurement result;

[0036] Afterwards, gas is supplied to the two fire extinguisher cylinders from the gas supply bottle 16. After a period of inflation, the gas supply is stopped. From this moment on, the value change of the pressure gauge 12 on the meniscus 17 is recorded. When the value of the pressure gauge 12 connected to any fire extinguisher cylinder shows a continuous downward trend, it is determined that the fire extinguisher cylinder is non-compliant.

[0037] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A fire extinguisher pressure measuring device, characterized in that: It includes a bottom support platform, a steel cylinder fixing structure arranged on the bottom support platform for fixing the steel cylinder of the fire extinguisher, a top support platform fixedly connected to the bottom support platform and located above the steel cylinder fixing structure, and a pressure measuring fixing structure arranged on the top support platform, and a gas supply bottle for supplying gas to the pressure measuring fixing structure is also arranged on one side of the bottom support platform; The pressure measuring fixed structure includes an inflation component arranged below the top supporting platform and a top lifting component arranged on the top supporting platform and used for adjusting the height of the inflation component. The inflation component includes a lifting plate controlled by the top lifting plate, an inflation joint fixedly connected to the lifting plate and connected to the gas supply bottle and sealably inserted into the top opening of the fire extinguisher cylinder, and a pressure measuring structure fixedly connected to the lifting plate and connected to the inner cavity of the fire extinguisher cylinder.

2. A fire extinguisher pressure measuring device according to claim 1, characterized in that: The steel cylinder fixing structure comprises a fixing base which is arranged on the bottom supporting platform and is used for accommodating the bottom of the fire extinguisher steel cylinder.

3. A fire extinguisher pressure measuring device according to claim 2, characterized in that: The steel cylinder fixing structure also includes a slide rail fixedly connected to the bottom support platform, the fixed base is slidably connected to the slide rail, and the bottom support platform is provided with a base fixing piece for fixing the fixed base.

4. A fire extinguisher pressure measuring device according to claim 1, characterized in that: Guide grooves are respectively provided on both sides of the top support platform, and guide rods which can be slidably connected to the guide grooves are fixedly connected on both sides of the lifting plate.

5. A fire extinguisher pressure measuring device according to claim 1, characterized in that: An inflation baffle wrapping an inflation joint is fixedly connected to the lower end of the lifting plate, and the bottom end of the inflation baffle is bent inward to form a top wrapping portion that can wrap the top of the fire extinguisher cylinder.

6. A fire extinguisher pressure measuring device according to claim 1, characterized in that: The pressure measuring structure comprises a pressure gauge fixedly connected to the lifting plate and a pressure measuring hose connected to the pressure gauge and extending out of the inflation joint.

Images