Fire-fighting water tank water level monitoring and alarming device for fire fighting

Abstract

The utility model relates to a fire-fighting water tank water level monitoring alarm device for fire fighting, which belongs to the technical field of fire-fighting equipment and comprises a water tank body, a limiting rod is fixed between the inner top wall and the inner bottom wall of the water tank body, and a floating plate is slidably connected to the outer side of the limiting rod. The water tank body is provided with a water replenishing mechanism for replenishing water into the water tank in emergency, the water tank body is provided with a cleaning mechanism for cleaning impurities on the inner wall of the water tank, and the right side of the water tank body is communicated with a water outlet pipe. According to the fire-fighting water tank water level monitoring and alarming device for fire fighting, through cooperation of the water supplementing pipe, the standby water tank and the water tank body can be communicated, so that the standby water tank can conveniently supplement water into the water tank body, and through cooperation of the baffle and the sealing gasket, when the water level in the water tank body is high, the water supplementing pipe can be closed; when the water level in the water tank body is too low, the floating plate drives the spring and the baffle to move, the water supplementing pipe is opened, and water in the standby water tank is introduced into the water tank body.

Description

Technical Field

[0001] The utility model relates to the technical field of fire fighting equipment, in particular to a water level monitoring and alarm device for a fire fighting water tank. Background Art

[0002] A fire water tank is a fire-fighting facility that provides water for fire brigades during fire-fighting and rescue activities. It is divided into two categories: circulating fire water tanks and non-circulating fire water tanks according to their uses. It has the advantages of good water quality, clean and pollution-free, high strength and light weight.

[0003] For example, China Utility Model Patent Publication No. (CN209495757U) discloses a fire-fighting water tank water level monitoring and alarm device, which includes a water tank body, a sliding rod fixedly installed on the inner wall of the water tank body, a buoy slidingly sleeved on the sliding rod, a second contact sensor sealed and fixedly installed on the bottom of one side of the water tank body, a first contact sensor sealed and embedded on one side of the buoy, a scale fixedly installed on the top side of the buoy, the top of the scale penetrates the top inner wall of the water tank body and extends to the top of the water tank body, connecting pipes are sealed and fixedly installed on the bottom inner wall and the top inner wall of the other side of the water tank body, and one end of the two connecting pipes extends to the outside of the water tank body, an inlet pipe and an outlet pipe are respectively provided in the two connecting pipes, one end of the inlet pipe and the outlet pipe respectively extends to the outside of the two connecting pipes, the connecting pipes are sealed and slidably connected with limit rings, and a sealing cover is sealed and fixedly sleeved on the inlet pipe and the outlet pipe, and the sealing cover is connected to the The limit ring is sealed and clamped, and a moving rod is slidably connected inside the limit ring, and baffle rods are fixedly installed in the water inlet pipe and the water outlet pipe, one end of the two moving rods extends into the water inlet pipe and the water outlet pipe respectively and contacts with the two baffle rods respectively, and the other end of the moving rod extends to the outside of the limit ring and is fixedly installed with a cover plate, and the cover plate is movably sealed and fits with the inner wall of the limit ring, and the water inlet pipe and the water outlet pipe are respectively inserted into the two connecting pipes, so that the sealing cover and the limit ring are sealed and clamped. This practical solution solves the connection method between the external water pipe and the water tank, so generally only threaded connection is adopted, and raw tape is used as the sealing material. In this way, the raw tape is easy to weather during long-term use, so in order to maintain its sealing effect, the raw tape needs to be replaced regularly, and the operation will be cumbersome and troublesome. However, in this patent, only an alarm reminder can be issued when the water level is too low. If a fire-fighting operation is in progress at this time, water cannot be replenished in the water tank in time, which will cause the fire-fighting work to be interrupted, affecting practicality. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a water level monitoring and alarm device for a fire water tank for fire fighting, which has the advantages of sounding an alarm when the water level is too low and providing a reserve water source to the water tank. This solves the problem that the patent can only sound an alarm reminder when the water level is too low. If a fire fighting operation is in progress at this time, the water tank cannot be replenished with water in time, which will cause the fire fighting work to be interrupted and affect practicality.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a water level monitoring and alarm device for a fire-fighting water tank, comprising a water tank body, a limit rod is fixed between the inner top wall and the inner bottom wall of the water tank body, a floating plate is slidably connected to the outer side of the limit rod, a water replenishment mechanism for replenishing water in the water tank in an emergency is provided on the water tank body, a cleaning mechanism for cleaning impurities on the inner wall of the water tank is provided on the water tank body, and a water outlet pipe is connected to the right side of the water tank body;

[0006] The water replenishment mechanism includes a water replenishment pipe, which is fixed to the upper surface of the water tank body. The top end of the water replenishment pipe is connected to a spare water tank, and the bottom end of the water replenishment pipe passes through and extends to the interior of the water tank body. A spring is fixed to the upper surface of the float plate, and a baffle is fixed to the other end of the spring. A sealing gasket is fixed to the upper surface of the baffle, and a guide rod is fixed to the lower surface of the baffle. The other end of the guide rod passes through and extends to the lower side of the float plate and is slidably connected to the inner side of the float plate. A monitoring component is arranged on the float plate.

[0007] Furthermore, there are two limit rods, which are symmetrically distributed about the central axis of the water tank body.

[0008] Furthermore, the outer diameter of the baffle is greater than the outer diameter of the sealing gasket, and the outer diameter of the sealing gasket is greater than the inner diameter of the water supply pipe.

[0009] Furthermore, the monitoring component includes a water level plate, the lower surface of which is fixed to the upper surface of the floating plate, the upper surface of which passes through and extends to the upper side of the water tank body, and is fixed with a limit plate, and a distance measuring sensor is fixed to the lower surface of the limit plate.

[0010] Furthermore, an opening is provided on the upper surface of the water tank body, the length and width of the opening are respectively matched with the length and width of the water level plate, and the length and width of the limit plate are respectively greater than the length and width of the opening.

[0011] Furthermore, the cleaning mechanism includes an electric push rod, which is fixed to the lower surface of the water tank body, and the output shaft of the electric push rod is fixed with a connecting rod, the other end of the connecting rod penetrates and extends to the interior of the water tank body, and is fixed with a push plate, and the four side walls of the floating plate are fixed with bristles, and each side of the bristles away from the floating plate is in contact with the four inner walls of the water tank body, and an installation opening is opened on the upper surface of the floating plate, and a filter is fixed on the inner side of the installation opening.

[0012] Furthermore, there are two electric push rods, which are symmetrically distributed about the central axis of the water tank body.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] 1. The fire-fighting water tank water level monitoring and alarm device can connect the spare water tank with the water tank body through the cooperation of the water supply pipe, so as to facilitate the spare water tank to replenish water into the water tank body. Through the cooperation of the baffle and the sealing gasket, when the water level in the water tank body is high, the water supply pipe will be closed. When the water level in the water tank body is too low, the float plate drives the spring and the baffle to move, so that the water supply pipe is opened, and the water inside the spare water tank is passed into the water tank body to urgently replenish the water inside the water tank.

[0015] 2. The fire-fighting water tank water level monitoring and alarm device can drive the connecting rod to move through the cooperation of the electric push rod, thereby driving the push plate to move. Through the movement of the push plate, the floating plate can be actively pushed, so that the bristles on the floating plate can clean the inner wall of the water tank body. Through the cooperation of the filter net, the cleaned impurities can be filtered out to avoid flowing into the outlet pipe and causing blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a partial schematic diagram of the structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the water replenishment mechanism of the utility model;

[0019] Figure 4 It is a schematic diagram of the cleaning mechanism of the utility model.

[0020] In the figure: 1 water tank body, 2 limit rod, 3 float plate, 4 water replenishment mechanism, 401 water replenishment pipe, 402 spare water tank, 403 spring, 404 baffle, 405 sealing gasket, 406 guide rod, 407 water level plate, 408 limit plate, 409 distance sensor, 5 cleaning mechanism, 501 electric push rod, 502 connecting rod, 503 push plate, 504 brush, 505 installation port, 506 filter screen, 6 water outlet pipe. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-2 In this embodiment, a water level monitoring and alarm device for a fire-fighting water tank comprises a water tank body 1, a limit rod 2 is fixed between the inner top wall and the inner bottom wall of the water tank body 1, a floating plate 3 is slidably connected to the outer side of the limit rod 2, and a water replenishment mechanism 4 for replenishing water in the water tank in an emergency is provided on the water tank body 1 to avoid the water inside the water tank running out and causing the firefighting action to be interrupted. A cleaning mechanism 5 for cleaning impurities on the inner wall of the water tank is provided on the water tank body 1 to facilitate maintenance of the inside of the water tank and prevent impurities from clogging the pipeline. A water outlet pipe 6 is connected to the right side of the water tank body 1.

[0023] There are two limit rods 2, which are symmetrically distributed about the central axis of the water tank body 1. The two limit rods 2 can limit the angle of the floating plate 3 to prevent the floating plate 3 from deflecting.

[0024] See also Figure 3In order to avoid the interruption of firefighting operations due to the water running out in the water tank, the water replenishment mechanism 4 in this embodiment includes a water replenishment pipe 401, which is fixed to the upper surface of the water tank body 1, and the top of the water replenishment pipe 401 is connected to the spare water tank 402, and the bottom end of the water replenishment pipe 401 passes through and extends to the inside of the water tank body 1, and a spring 403 is fixed to the upper surface of the floating plate 3, and a baffle 404 is fixed to the other end of the spring 403. When the water level continues to drop, the baffle 404 will be removed from the water replenishment pipe 401. At this time, the spare water source in the spare water tank 402 is passed into the water tank body 1 from the water replenishment pipe 401 to replenish the water tank body 1. A sealing gasket 405 is fixed to the upper surface of the baffle 404 to improve the sealing effect of the water replenishment pipe 401 A guide rod 406 is fixed to the lower surface of the baffle 404, and the other end of the guide rod 406 passes through and extends to the lower side of the float plate 3, and is slidably connected to the inner side of the float plate 3. After the staff adds water to the inside of the water tank body 1, the water level moves up and drives the float plate 3 to move up, and the float plate 3 drives the spring 403 to move. When the baffle 404 moves to the water supply pipe 401, the float plate 3 continues to move up to squeeze the spring 403, so that the elastic force of the spring 403 is applied to the baffle 404, so that the water supply pipe 401 is closed more tightly, and the guide rod 406 can keep the relative position between the baffle 404 and the float plate 3 stable, and the upper surface of the water tank body 1 is connected to a water injection pipe, and the outer side of the water injection pipe is threadedly connected to a pipe cover, and a monitoring component is provided on the float plate 3.

[0025] In this example, the outer diameter of the baffle 404 is larger than the outer diameter of the sealing gasket 405 , and the outer diameter of the sealing gasket 405 is larger than the inner diameter of the water supply pipe 401 , which can effectively seal the water supply pipe 401 and prevent water leakage inside the spare water tank 402 .

[0026] It should be noted that the monitoring component includes a water level plate 407, the lower surface of the water level plate 407 is fixed to the upper surface of the floating plate 3, during the use of the water tank body 1, the water level will drop, the water level drop drives the floating plate 3 to move, the floating plate 3 drives the water level plate 407 to move, the upper surface of the water level plate 407 penetrates and extends to the upper side of the water tank body 1, and is fixed with a limit plate 408, the water level plate 407 drives the limit plate 408 to move, the lower surface of the limit plate 408 is fixed with a distance sensor 409, the limit plate 408 drives the distance sensor 409 to move, and the distance sensor 409 monitors The distance between the upper surface of the water tank body 1 and the distance is the water level height inside the water tank body 1. When the distance measuring sensor 409 detects that the distance is less than the specified value, that is, the water level is at the warning critical value, the distance measuring sensor 409 alarms. An opening is provided on the upper surface of the water tank body 1. The length and width of the opening are respectively matched with the length and width of the water level plate 407 to reduce the entry of external impurities into the water tank body 1. The length and width of the limit plate 408 are respectively larger than the length and width of the opening. After the water level plate 407 is completely moved into the water tank body 1, the opening can be closed.

[0027] See also Figure 4 In order to facilitate maintenance of the inside of the water tank and prevent impurities from clogging the pipeline, the cleaning mechanism 5 in this embodiment includes an electric push rod 501, which is fixed to the lower surface of the water tank body 1. The output shaft of the electric push rod 501 is fixed with a connecting rod 502. The output shaft of the electric push rod 501 drives the connecting rod 502 to move. The other end of the connecting rod 502 penetrates and extends to the inside of the water tank body 1 and is fixed with a push plate 503. The connecting rod 502 drives the push plate 503 to move. The four side walls of the floating plate 3 are all fixed with bristles 504. The side of each brush 504 away from the floating plate 3 is in contact with the inner walls of the four sides of the water tank body 1. The push plate 503 drives the floating plate 3 to move, and the floating plate 3 drives the brush 504 to move. The brush 504 cleans the inner wall of the water tank body 1, so that the impurities on the inner wall of the water tank body 1 are cleaned off. An installation port 505 is provided on the upper surface of the floating plate 3, and a filter screen 506 is fixed on the inner side of the installation port 505. The filter screen 506 can filter the large volume of impurities cleaned off to prevent the impurities from entering the water outlet pipe 6 and clogging the water outlet pipe 6.

[0028] In this example, there are two electric push rods 501 , which are symmetrically distributed about the central axis of the water tank body 1 , so that the push float 3 remains stable when moving.

[0029] The working principle of the above embodiment is:

[0030] (1) When carrying out fire fighting operations, the water inside the water tank body 1 can be used through the water outlet pipe 6. During the use of the water tank body 1, the water level will drop. The drop in water level drives the floating plate 3 to move, the floating plate 3 drives the water level plate 407 to move, the water level plate 407 drives the limit plate 408 to move, and the limit plate 408 drives the distance sensor 409 to move. The distance sensor 409 monitors the distance between the upper surface of the water tank body 1 and the upper surface of the water tank body 1. This distance is the water level height inside the water tank body 1. When the distance sensor 409 detects that the distance is less than the specified value, that is, the water level is at the warning critical value, the distance sensor 409 alarms. When the water level continues to drop, the baffle 404 will be removed from the water supply pipe 401. At this time, the backup water source inside the backup water tank 402 is passed into the water tank body 1 from the water supply pipe 401 to replenish the water tank body 1.

[0031] (2) During the water replenishment process, the water level inside the water tank body 1 will reach the critical value again. The baffle 404 drives the sealing gasket 405 to close the water replenishment pipe 401, so that the water level inside the water tank body 1 is always near the warning critical value, providing time for the staff who add water so that the firefighting work will not be interrupted. After the staff adds water to the inside of the water tank body 1, the water level moves up and drives the floating plate 3 to move up. The floating plate 3 drives the spring 403 to move. When the baffle 404 moves to the water replenishment pipe 401, the floating plate 3 continues to move up to squeeze the spring 403, so that the elastic force of the spring 403 is applied On the baffle 404, the water supply pipe 401 is closed more tightly. When maintaining the inside of the water tank body 1, the electric push rod 501 is opened, and the output shaft of the electric push rod 501 drives the connecting rod 502 to move, the connecting rod 502 drives the push plate 503 to move, the push plate 503 drives the floating plate 3 to move, the floating plate 3 drives the brush 504 to move, and the brush 504 cleans the inner wall of the water tank body 1 to clean up the impurities on the inner wall of the water tank body 1. The filter net 506 can filter the large volume of impurities cleaned up to prevent the impurities from entering the water outlet pipe 6 and clogging the water outlet pipe 6.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0033] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A fire water tank water level monitoring and alarm device for fire fighting, comprising a water tank body (1), characterized in that: A limit rod (2) is fixed between the inner top wall and the inner bottom wall of the water tank body (1); a floating plate (3) is slidably connected to the outer side of the limit rod (2); a water replenishment mechanism (4) for replenishing water in the water tank in an emergency is provided on the water tank body (1); a cleaning mechanism (5) for cleaning impurities on the inner wall of the water tank is provided on the water tank body (1); and a water outlet pipe (6) is connected to the right side of the water tank body (1); The water replenishment mechanism (4) comprises a water replenishment pipe (401), the water replenishment pipe (401) is fixed to the upper surface of the water tank body (1), the top end of the water replenishment pipe (401) is connected to the spare water tank (402), the bottom end of the water replenishment pipe (401) passes through and extends to the inside of the water tank body (1), a spring (403) is fixed to the upper surface of the floating plate (3), a baffle (404) is fixed to the other end of the spring (403), a sealing gasket (405) is fixed to the upper surface of the baffle (404), a guide rod (406) is fixed to the lower surface of the baffle (404), the other end of the guide rod (406) passes through and extends to the lower side of the floating plate (3), and is slidably connected to the inner side of the floating plate (3), and a monitoring component is arranged on the floating plate (3).

2. A fire water tank water level monitoring and alarm device for firefighting according to claim 1, characterized in that: The number of the limiting rods (2) is two, and they are symmetrically distributed about the central axis of the water tank body (1).

3. A fire water tank water level monitoring and alarm device for firefighting according to claim 1, characterized in that: The outer diameter of the baffle (404) is greater than the outer diameter of the sealing gasket (405), and the outer diameter of the sealing gasket (405) is greater than the inner diameter of the water supply pipe (401).

4. A fire water tank water level monitoring and alarm device for firefighting according to claim 1, characterized in that: The monitoring component comprises a water level plate (407), the lower surface of the water level plate (407) is fixed to the upper surface of the floating plate (3), the upper surface of the water level plate (407) penetrates and extends to the upper side of the water tank body (1), and is fixed with a limit plate (408), and the lower surface of the limit plate (408) is fixed with a distance sensor (409).

5. A fire water tank water level monitoring and alarm device for firefighting according to claim 4, characterized in that: An opening is provided on the upper surface of the water tank body (1), the length and width of the opening are respectively matched with the length and width of the water level plate (407), and the length and width of the limit plate (408) are respectively greater than the length and width of the opening.

6. A fire water tank water level monitoring and alarm device for firefighting according to claim 1, characterized in that: The cleaning mechanism (5) comprises an electric push rod (501), the electric push rod (501) being fixed to the lower surface of the water tank body (1), the output shaft of the electric push rod (501) being fixed with a connecting rod (502), the other end of the connecting rod (502) passing through and extending into the interior of the water tank body (1), and being fixed with a push plate (503), the four side walls of the floating plate (3) being fixed with bristles (504), the side of each bristle (504) away from the floating plate (3) being in contact with the four inner walls of the water tank body (1), the upper surface of the floating plate (3) being provided with a mounting opening (505), the inner side of the mounting opening (505) being fixed with a filter screen (506).

7. A fire water tank water level monitoring and alarm device for firefighting according to claim 6, characterized in that: The number of the electric push rods (501) is two, and they are symmetrically distributed about the central axis of the water tank body (1).

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