An air tightness detection device for fire extinguisher maintenance

Abstract

The utility model discloses an air tightness detection device for fire extinguisher maintenance, wherein two symmetrical partitions are fixedly connected in the water tank, two symmetrically arranged powder pushing mechanisms are slidably arranged between the two partitions, the powder pushing mechanism comprises a slider, the slider is connected to the water tank through a telescopic device, the top of the slider is fixedly connected with a first wedge, the inner side of the powder pushing mechanism is fixedly connected with a second wedge, and a second connecting groove is provided on the slider. The utility model puts a loading mechanism into a detection area b, and uses the lower end of the loading mechanism to squeeze the powder pushing mechanism, so as to push the floating dry powder in the detection area b to both sides, and when the loading mechanism is completely put into the detection area b, the powder pushing mechanism pushes the floating dry powder into the filtering area a, and observes whether there are bubbles and floating dry powder in the water body of the detection area b to determine whether the sample is qualified, thereby avoiding the dry powder in the water tank floating on the water surface to affect the detection of the sample.

Description

Technical Field

[0001] The utility model relates to the technical field of fire extinguisher maintenance, in particular to an air tightness detection device for fire extinguisher maintenance. Background Art

[0002] The dry powder fire extinguisher is filled with dry powder fire extinguishing agents such as ammonium phosphate salts. This dry powder fire extinguishing agent is easy to flow and dry. It is composed of inorganic salts and crushed and dried additives, and can effectively extinguish initial fires.

[0003] The dry powder is composed of diammonium phosphate, which is siliconized before filling to prevent it from absorbing water and agglomerating, and can be sprayed out smoothly.

[0004] When a dry powder fire extinguisher is repaired, the cylinder is mainly tested for pressure resistance and air tightness. Finally, the dry powder is filled and another air tightness test is performed to ensure that the dry powder fire extinguisher is qualified. During the factory inspection process, unqualified fire extinguishers will always be encountered. At this time, bubbles will be generated in the test pool and dry powder will leak. The dry powder will float on the water surface, affecting the observation of the bubbles and easily causing false detection. Utility Model Content

[0005] The utility model aims to provide an air tightness detection device for fire extinguisher maintenance to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an air tightness detection device for fire extinguisher maintenance, comprising: a water tank, two symmetrical partitions are fixedly connected in the water tank, two symmetrically arranged powder pushing mechanisms are slidably arranged between the two partitions, the powder pushing mechanism comprises a slider, the slider is connected to the water tank through a telescopic device, the top of the slider is fixedly connected to a first wedge block, the inner side of the powder pushing mechanism is fixedly connected to a second wedge block, a second connecting groove is opened on the slider, and a loading mechanism is placed between the two powder pushing mechanisms.

[0007] Furthermore, the loading mechanism comprises a drain rack, the lower end of which is fixedly connected to a water squeezing block, and a one-way valve is arranged in the water squeezing block.

[0008] Furthermore, smooth curved surfaces are provided on both sides of the water squeezing block.

[0009] Furthermore, the telescopic device includes a cylinder, a thin rod is slidably arranged in the cylinder, and a spring is arranged in the cylinder, one end of the spring is fixedly connected to the inner wall of the cylinder, and the other end of the spring is fixedly connected to the thin rod.

[0010] Furthermore, the cylinder is fixedly connected to the water tank, one end of the thin rod is fixedly connected to the powder pushing mechanism, and the other end of the thin rod is slidably connected to the cylinder.

[0011] Furthermore, the detection area b is between the two partitions, the filtering area a is between the partition and the inner wall of the water tank, and the first filter net is arranged in the filtering area a.

[0012] Furthermore, a first connecting groove and a mud collecting groove are provided in the water tank, and the first connecting groove connects the filtering area a and the detecting area b.

[0013] Furthermore, a second filter screen is provided in the mud collecting tank, and the second filter screen is installed at the upper end of the connection point between the first connecting tank and the mud collecting tank.

[0014] In the above technical solution, the utility model provides an air tightness detection device for fire extinguisher maintenance with the following beneficial effects:

[0015] The utility model places a loading mechanism into the detection area b, and uses the lower end of the loading mechanism to squeeze the powder pushing mechanism, so that the floating dry powder in the detection area b is pushed to both sides. When the loading mechanism is completely placed in the detection area b, the powder pushing mechanism pushes the floating dry powder into the filtering area a. After observing whether there are bubbles and floating dry powder in the water body of the detection area b, it is determined whether the sample is qualified, thereby preventing the dry powder in the water tank from floating on the water surface and affecting the detection of the sample.

[0016] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0017] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 A schematic diagram of the structure provided for an embodiment of the utility model;

[0020] Figure 2 A schematic diagram of the structure provided for an embodiment of the utility model;

[0021] Figure 3 A schematic diagram of the loading mechanism structure provided by an embodiment of the utility model;

[0022] Figure 4 The embodiment of the utility model provides Figure 2 A magnified image;

[0023] Figure 5 The embodiment of the utility model provides Figure 2 Enlarged view of point B.

[0024] Description of reference numerals:

[0025] 1. Water tank; 11. First connecting groove; 12. Mud collecting groove; 2. Partition; 3. Powder pushing mechanism; 31. Sliding block; 311. Second connecting groove; 32. First wedge block; 33. Second wedge block; 4. Loading mechanism; 41. Drain rack; 42. Water squeezing block; 421. Smooth curved surface; 43. One-way valve; 44. Test sample; 5. Telescopic device; 51. Cylinder; 52. Thin rod; 53. Spring; 6. First filter screen; 7. Second filter screen; a. Filtering area; b. Test area. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0027] Please refer to 1-5, an air tightness detection device for fire extinguisher maintenance, including: a water tank 1, two symmetrical partitions 2 are fixedly connected in the water tank 1, two symmetrically arranged powder pushing mechanisms 3 are slidably set between the two partitions 2, the powder pushing mechanism 3 includes a slider 31, the slider 31 is connected to the water tank 1 through a telescopic device 5, the top of the slider 31 is fixedly connected to a first wedge block 32, the inner side of the powder pushing mechanism 3 is fixedly connected to a second wedge block 33, a second connecting groove 311 is opened on the slider 31, and a loading mechanism 4 is placed between the two powder pushing mechanisms 3.

[0028] Specifically, the utility model puts the loading mechanism 4 into the detection area b, and then uses the lower end of the loading mechanism 4 to squeeze the powder pushing mechanism 3, so that the two powder pushing mechanisms 3 are pushed to both sides. At the same time, the volume of the loading mechanism 4 is used to make the water in the detection area b flow to the filtration area a, and the dry powder floating on the water surface of the detection area b flows to between the powder pushing mechanism 3 and the partition 2 through the second connecting groove 311, and finally with the rise of the water level and the push of the powder pushing mechanism 3, the dry powder floating between the partition 2 and the powder pushing mechanism 3 is pushed into the filtration area a. After observing whether there are bubbles and floating dry powder in the water body of the detection area b, it is determined whether the sample is qualified, thereby avoiding the dry powder in the water tank 1 floating on the water surface to affect the detection of the sample. After the detection is completed, the loading mechanism 4 is pulled out of the water tank 1. As the loading mechanism 4 is slowly pulled out of the water tank 1, the water level in the water tank 1 gradually decreases, that is, after the water level is lower than the height of the partition 2, the floating dry powder is left in the filtration area a, and then the powder pushing mechanism 3 begins to gradually retract until the loading mechanism 4 is pulled out of the water tank 1.

[0029] Furthermore, the loading mechanism 4 includes a draining frame 41 , a water squeezing block 42 is fixedly connected to the lower end of the draining frame 41 , and a one-way valve 43 is arranged in the water squeezing block 42 .

[0030] Specifically, the test sample 44 is loaded in the drain rack 41, and as the loading mechanism 4 abuts against the first wedge block 32, the two powder pushing mechanisms 3 gradually slide outward. After the loading mechanism 4 slides over the inclined surface of the first wedge block 32, as the loading mechanism 4 descends, the dry powder floating on the water surface of the detection area b is transferred by the water flow to the water surface between the powder pushing mechanism 3 and the partition 2, and finally the loading mechanism 4 squeezes the second wedge block 33, so that the powder pushing mechanism 3 moves further to both sides until the powder pushing mechanism 3 is in close contact with the partition 2. At this time, all the dry powder in the detection area b is transferred to the filtration area a to avoid dry powder floating in the detection area b and affecting the detection of the sample. The one-way valve 43 only allows water to be discharged from the loading mechanism 4. This setting can discharge the water intercepted by the water squeezing block 42 after the loading mechanism 4 is pulled out.

[0031] Furthermore, smooth curved surfaces 421 are formed on both sides of the water squeezing block 42 .

[0032] Specifically, by providing the smooth curved surface 421 , it is convenient for the loading mechanism 4 to push the powder pushing mechanism 3 away.

[0033] Furthermore, the telescopic device 5 includes a cylinder 51, a thin rod 52 is slidably arranged in the cylinder 51, and a spring 53 is arranged in the cylinder 51, one end of the spring 53 is fixedly connected to the inner wall of the cylinder 51, and the other end of the spring 53 is fixedly connected to the thin rod 52, the cylinder 51 is fixedly connected to the water tank 1, one end of the thin rod 52 is fixedly connected to the powder pushing mechanism 3, and the other end of the thin rod 52 is slidably connected in the cylinder 51.

[0034] Specifically, when the powder pushing mechanism 3 is pushed to slide to both sides, the thin rod 52 squeezes the spring 53, overcoming the elastic force of the spring 53, so that the thin rod 52 slides in the cylinder 51. After the loading mechanism 4 is pulled out from between the two powder pushing mechanisms 3, the thin rod 52 pushes the powder pushing mechanism 3 to return to its original position under the elastic force of the spring 53.

[0035] Furthermore, the detection area b is between the two partitions 2, and the filtering area a is between the partition 2 and the inner wall of the water tank 1. The first filter screen 6 is arranged in the filtering area a.

[0036] Specifically, the first filter screen 6 is installed in the filter area a. When the dry powder in the filter area a needs to be cleaned, the first filter screen 6 is pulled outward to bring out the dry powder floating on the water surface, which is convenient for cleaning.

[0037] Furthermore, a first connecting groove 11 and a mud collecting groove 12 are provided in the water tank 1. The first connecting groove 11 connects the filtering area a and the detection area b. A second filter screen 7 is provided in the mud collecting groove 12. The second filter screen 7 is installed at the upper end of the connecting point between the first connecting groove 11 and the mud collecting groove 12.

[0038] Specifically, the mud collecting tank 12 is used to collect impurities precipitated in the water tank 1. By setting the second filter screen 7, a small amount of dry powder dissolved in water flowing from the first connecting tank 11 into the detection area b in the filter area a can be intercepted to avoid turbid water in the detection area b. The filter hole diameter of the second filter screen 7 is smaller than the filter hole diameter of the first filter screen 6.

[0039] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An air tightness detection device for fire extinguisher maintenance, comprising: A water tank (1), characterized in that: two symmetrical partitions (2) are fixedly connected in the water tank (1), two symmetrically arranged powder pushing mechanisms (3) are slidably arranged between the two partitions (2), the powder pushing mechanism (3) comprises a slider (31), the slider (31) is connected to the water tank (1) through a telescopic device (5), a first wedge block (32) is fixedly connected to the top of the slider (31), a second wedge block (33) is fixedly connected to the inner side of the powder pushing mechanism (3), a second connecting groove (311) is opened on the slider (31), and a loading mechanism (4) is placed between the two powder pushing mechanisms (3).

2. The air tightness detection device for fire extinguisher maintenance according to claim 1, characterized in that: The loading mechanism (4) comprises a draining frame (41), the lower end of the draining frame (41) is fixedly connected to a water squeezing block (42), and a one-way valve (43) is arranged inside the water squeezing block (42).

3. The air tightness detection device for fire extinguisher maintenance according to claim 2, characterized in that: The water squeezing block (42) has smooth curved surfaces (421) on both sides.

4. The air tightness detection device for fire extinguisher maintenance according to claim 1, characterized in that: The telescopic device (5) comprises a cylinder (51), a thin rod (52) is slidably arranged inside the cylinder (51), and a spring (53) is arranged inside the cylinder (51), one end of the spring (53) is fixedly connected to the inner wall of the cylinder (51), and the other end of the spring (53) is fixedly connected to the thin rod (52).

5. The air tightness detection device for fire extinguisher maintenance according to claim 4, characterized in that: The cylinder (51) is fixedly connected to the water tank (1), one end of the thin rod (52) is fixedly connected to the powder pushing mechanism (3), and the other end of the thin rod (52) is slidably connected in the cylinder (51).

6. The air tightness detection device for fire extinguisher maintenance according to claim 1, characterized in that: The detection area b is between the two partitions (2), and the filtering area a is between the partition (2) and the inner wall of the water tank (1). A first filtering net (6) is arranged in the filtering area a.

7. The air tightness detection device for fire extinguisher maintenance according to claim 1, characterized in that: A first connecting groove (11) and a mud collecting groove (12) are provided in the water tank (1), and the first connecting groove (11) connects the filtering area a and the detection area b.

8. The air tightness detection device for fire extinguisher maintenance according to claim 7, characterized in that: A second filter screen (7) is arranged in the mud collecting groove (12), and the second filter screen (7) is installed at the upper end of the connection point between the first connecting groove (11) and the mud collecting groove (12).

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