Self-adaptive pressure adjusting type fire hose

Abstract

The utility model belongs to the technical field of fire hoses, and discloses a self-adaptive pressure adjusting type fire hose which comprises a fire hose body, a hose telescopic area is fixedly arranged on the outer side of the fire hose body, and a fixing point is fixedly arranged on the outer side of the hose telescopic area. A metal connector is fixedly arranged on the outer side of the left end of the fire hose body, a threaded sleeve is in threaded connection with the inner side of the metal connector, sliding shafts are fixedly arranged on the two sides of the threaded sleeve, movable sleeves are slidably arranged on the outer sides of the sliding shafts, and sliding plates are slidably arranged in the movable sleeves. And a movable plate is rotationally arranged on the left side of the bottom face of the sliding plate and rotationally connected with the fixed point, and the fire hose has the function of automatically extending according to the magnitude of pressure borne by the fire hose body, so that the problem that the fire hose is broken due to the fact that water pressure is too large is solved, and it is guaranteed that fire fighting operation is smoothly completed especially in the fire fighting operation.

Description

Technical Field

[0001] The utility model belongs to the technical field of fire hoses, in particular to an adaptive pressure regulating fire hose. Background Art

[0002] A fire hose is a flexible pipe used to transport flame-retardant liquids such as high-pressure water or foam. The traditional fire hose has a rubber lining and a linen braid wrapped on the outside. There are metal joints at both ends of the fire hose, which can be connected to another hose to extend the distance or to a nozzle to increase the liquid spray pressure.

[0003] At the same time, the patent specification with publication number CN 219888932 U discloses an integrated high-pressure fire hose structure and its fire hose, including: a fire hose body, a flame-retardant tube fixedly connected to the circumferential inner wall of the fire hose body, an elastic tube fixedly connected to the circumferential inner wall of the flame-retardant tube, a wear-resistant layer is arranged on the surface of the fire hose body, the elastic tube is made of polyester material, and the flame-retardant tube is made of a composite flame-retardant material.

[0004] However, in the implementation of relevant technologies, it was found that the above-mentioned integrated high-pressure fire hose structure and its fire hose device have the following problems: the hose cannot be automatically adjusted according to the pressure. When the pressure of the fire hose is too high, the outer side of the hose will cause rupture, thereby affecting the normal use of the fire hose. In firefighting operations, fire hoses play a vital role. Once an accident occurs with the fire hose, it will cause serious consequences to the firefighting operation, and people’s property safety may be affected.

[0005] Therefore, in view of the above problems, an adaptive pressure regulating fire hose is proposed. Utility Model Content

[0006] In order to solve the problems raised in the above-mentioned background technology, the utility model provides an adaptive pressure-regulating fire hose, which has the function of automatically extending according to the pressure applied to the fire hose, thereby alleviating the problem of fire hose rupture caused by excessive water pressure. The integrity of the fire hose is particularly important during firefighting operations. The adaptive pressure-regulating hose can ensure the safety of the hose to a large extent, thereby ensuring the smooth completion of firefighting operations.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adaptive pressure regulating fire hose, comprising a fire hose body, a hose expansion and contraction area is fixedly arranged on the outside of the fire hose body, a fixed point is fixedly arranged on the outside of the hose expansion and contraction area, a metal joint is fixedly arranged on the left end of the fire hose body, a threaded sleeve is threadedly connected to the inner side of the metal joint, sliding shafts are fixedly arranged on both sides of the threaded sleeve, a movable sleeve is slidably arranged on the outer side of the sliding shaft, a sliding plate is slidably arranged inside the movable sleeve, a movable plate is rotatably arranged on the left side of the bottom surface of the sliding plate, and the movable plate is rotatably connected to the fixed point.

[0008] Preferably, a touch point is fixedly provided on the top of the sliding plate, and the touch point moves simultaneously with the sliding plate.

[0009] Preferably, a fixed shaft is fixedly provided on the right side of the bottom surface of the sliding plate, and a spring is sleeved on the outer side of the fixed shaft.

[0010] Preferably, one end of the fixed shaft is in contact with the fire hose, and the bottom end of the spring is in contact with the fire hose.

[0011] Preferably, a pressure tester is fixedly provided on the outer side of the metal joint, a display screen is fixedly provided on the left end of the outer side of the pressure tester, and the display screen is a liquid crystal display panel.

[0012] Preferably, a sensor is fixedly provided inside the pressure tester, and an alarm light is fixedly provided at the right end of the outer side of the pressure tester.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model drives the movable plate to move by sliding the sliding plate upwards, and the movable plate pulls the expansion and contraction area of ​​the water hose while moving, thereby extending the length of the fire hose, thereby alleviating the problem of fire hose rupture caused by excessive water pressure, and greatly ensuring the safety of the water hose in firefighting operations, promoting the smooth completion of firefighting operations, and avoiding damage to people's property safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the adaptive pressure regulating fire hose proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the installation structure of the pressure tester proposed by the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the adaptive pressure regulating fire hose proposed by the utility model;

[0018] Figure 4The utility model proposed Figure 3 Schematic diagram of the structure at point A.

[0019] In the figure: 1. Pressure tester; 2. Warning light; 3. Metal joint; 4. Sensor; 5. Fire hose body; 6. Threaded sleeve; 7. Movable sleeve; 8. Sliding plate; 9. Touch point; 10. Movable plate; 11. Hose expansion and contraction area; 12. Spring; 13. Display screen; 14. Fixed point; 15. Sliding shaft; 16. Fixed shaft. DETAILED DESCRIPTION

[0020] 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.

[0021] like Figures 1 to 4 As shown, the utility model provides an adaptive pressure regulating fire hose, including a fire hose body 5, a hose expansion and contraction area 11 is fixedly arranged on the outer side of the fire hose body 5, a fixed point 14 is fixedly arranged on the outer side of the hose expansion and contraction area 11, a metal joint 3 is fixedly arranged on the outer side of the left end of the fire hose body 5, a threaded sleeve 6 is threadedly connected to the inner side of the metal joint 3, and sliding shafts 15 are fixedly arranged on both sides of the threaded sleeve 6, a movable sleeve 7 is slidably arranged on the outer side of the sliding shaft 15, a sliding plate 8 is slidably arranged inside the movable sleeve 7, and a movable plate 10 is rotatably arranged on the left side of the bottom surface of the sliding plate 8, and the movable plate 10 is rotatably connected to the fixed point 14. When the movable plate 10 continuously moves upward, the hose expansion and contraction area 11 will be pulled at the same time, so as to relieve the water pressure and prevent the fire hose body 5 from rupturing. In addition to providing a track for the movable sleeve 7 when sliding, the sliding shaft 15 also plays a role in fixing the movable sleeve 7.

[0022] Specifically, a touch point 9 is fixedly provided on the top of the sliding plate 8 , and the touch point 9 moves simultaneously with the sliding plate 8 . When the touch point 9 moves to a certain height, it will come into contact with the sensor 4 .

[0023] Furthermore, a fixed shaft 16 is fixedly provided on the right side of the bottom surface of the sliding plate 8 , and a spring 12 is sleeved on the outer side of the fixed shaft 16 . When the fire hose body 5 is not filled with water, the spring 12 provides a rebound force to reset the fixed shaft 16 .

[0024] Furthermore, one end of the fixed shaft 16 is in contact with the fire hose body 5, and the bottom end of the spring 12 is in contact with the fire hose body 5. The fire hose body 5 continuously pushes the fixed shaft 16 and the spring 12 to move upward during the process of being filled with water and expanded.

[0025] It is worth noting that a pressure tester 1 is fixedly provided on the outside of the metal joint 3 , and a display screen 13 is fixedly provided on the left end of the outside of the pressure tester 1 , and the display screen 13 is a liquid crystal display panel, which will display the pressure that the fire hose body 5 is subjected to.

[0026] It is worth noting that a sensor 4 is fixedly installed inside the pressure tester 1, and an alarm light 2 is fixedly installed on the outer right end of the pressure tester 1. After the touch point 9 comes into contact with the sensor 4, the display screen 13 will display the pressure value of the fire hose body 5. When the pressure value reaches a certain value, the alarm light 2 will sound an alarm.

[0027] Among them, the sensor 4 is the existing technology and will not be described in detail; at the same time, the utility model also includes a power supply, a controller and a switch, which are not the main technical points of this patent and will not be described in detail.

[0028] Working principle and process:

[0029] An adaptive fire hose is a fire hose that automatically adjusts the length of the fire hose according to the pressure to adapt to the pressure to avoid the fire hose from breaking. First, Figure 3 The fire hose body 5 is not filled with water. Figure 1 and Figure 2The fire hose body 5 in the figure is the fire hose body 5 in the water-filled state, and a hose expansion area 11 is fixedly arranged on the outside of the fire hose body 5, and a fixed point 14 is fixedly arranged on the outside of the hose expansion area 11. A movable sleeve 7 is also sleeved on the outside of the fire hose body 5. The fire hose body 5 will continue to expand when filled with water, and at the same time, it will push the sliding plate 8 located on the outside of the fire hose body 5 to slide upward inside the movable sleeve 7. A fixed shaft 16 is fixedly arranged on the right side of the bottom surface of the sliding plate 8, and a spring 12 is sleeved on the outside of the fixed shaft 16. One end of the spring 12 is in contact with the fire hose body 5 at the same time, so the fire hose body 5 is not easily damaged. The body 5 will also squeeze the spring 12 while expanding. A movable plate 10 is rotatably arranged on the left side of the bottom surface of the sliding plate 8. The other end of the movable plate 10 is rotatably connected to the fixed point 14 at the same time. The sliding plate 8 slides upward inside the movable sleeve 7 while stretching the water hose expansion zone 11 on the left side of the fire hose body 5, and begins to extend the length of the fire hose body 5. The greater the water pressure, the higher the sliding plate 8 will slide upward, and the distance that the water hose expansion zone 11 is stretched will also be longer and longer. This is the main working principle of the adaptive pressure regulating fire hose. When the fire hose body 5 is subjected to a large water pressure, it will cause the outer side of the hose to rupture, affecting the fire fighting. The use effect of the hose body 5 is that the fire hose body 5 that is broken during firefighting will cause great trouble to the firefighting work, and will also cause damage to the property safety of others. At the same time, a metal joint 3 is fixedly arranged on the top of the right side of the fire hose body 5, and the internal thread of the metal joint 3 is connected with a threaded sleeve 6. Sliding shafts 15 are fixedly arranged on both sides of the threaded sleeve 6. The sliding shaft 15 runs through the interior of the movable sleeve 7 and plays a supporting role. At the same time, it provides a track for the movable sleeve 7 to slide due to the expansion of the fire hose body 5. A touch point 9 is fixedly arranged on the top surface of the sliding plate 8. When the fire hose body 5 is filled with water and expands, it continuously pushes the sliding plate 8 to slide. The movable plate 8 slides upward until it touches the sensor 4 fixed inside the pressure tester 1. When the touch point 9 comes into contact with the sensor 4, the display screen 13 will display the pressure value. When the pressure value reaches the highest, the alarm light 2 located at the right end of the outer side of the pressure tester 1 will sound an alarm to remind the staff to close the water valve or slow down the water flow to reduce the pressure on the fire hose body 5 and avoid the fire hose body 5 from rupture due to excessive pressure. At the same time, a display screen 13 is fixedly provided on the left end of the outer side of the pressure tester 1, and the operator can also understand whether the pressure value experienced by the fire hose body 5 has reached the maximum by observing the value displayed on the display screen 13.

[0030] 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.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adaptive pressure regulating fire hose, comprising a fire hose body (5), characterized in that: A hose expansion and contraction area (11) is fixedly arranged on the outside of the fire hose body (5), a fixed point (14) is fixedly arranged on the outside of the hose expansion and contraction area (11), a metal joint (3) is fixedly arranged on the outside of the left end of the fire hose body (5), a threaded sleeve (6) is threadedly connected to the inside of the metal joint (3), sliding shafts (15) are fixedly arranged on both sides of the threaded sleeve (6), a movable sleeve (7) is slidably arranged on the outside of the sliding shaft (15), a sliding plate (8) is slidably arranged inside the movable sleeve (7), a movable plate (10) is rotatably arranged on the left side of the bottom surface of the sliding plate (8), and the movable plate (10) is rotatably connected to the fixed point (14).

2. The self-adaptive pressure regulating fire hose according to claim 1, characterized in that: A touch point (9) is fixedly arranged on the top of the sliding plate (8), and the touch point (9) moves simultaneously with the sliding plate (8).

3. The self-adaptive pressure regulating fire hose according to claim 1, characterized in that: A fixed shaft (16) is fixedly arranged on the right side of the bottom surface of the sliding plate (8), and a spring (12) is sleeved on the outer side of the fixed shaft (16).

4. The self-adaptive pressure regulating fire hose according to claim 3, characterized in that: One end of the fixed shaft (16) is in contact with the fire hose body (5), and the bottom end of the spring (12) is in contact with the fire hose body (5).

5. The self-adaptive pressure regulating fire hose according to claim 1, characterized in that: A pressure tester (1) is fixedly arranged on the outside of the metal joint (3), and a display screen (13) is fixedly arranged on the left end of the outside of the pressure tester (1), and the display screen (13) is a liquid crystal display panel.

6. The self-adaptive pressure regulating fire hose according to claim 5, characterized in that: A sensor (4) is fixedly arranged inside the pressure tester (1), and an alarm light (2) is fixedly arranged at the right end of the outer side of the pressure tester (1).

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