A flexible vacuum water suction pipe for fire fighting and its use method

Abstract

The present invention discloses a bendable vacuum water suction pipe for fire fighting and a method for using the same, belonging to the technical field of fire fighting water suction pipes. The bendable vacuum water suction pipe for fire fighting comprises a pipe body component and two connecting components, wherein the pipe body component comprises a stainless steel corrugated outer pipe, a soft inner pipe, a water inlet pipe and a drain pipe, wherein the water inlet pipe is connected to one end of the stainless steel corrugated outer pipe, the drain pipe is connected to the other end of the stainless steel corrugated outer pipe, the soft inner pipe is glued to the inner side of the water inlet pipe and the drain pipe, the soft inner pipe passes through the inner side of the stainless steel corrugated outer pipe, an explosion-proof layer is arranged between the soft inner pipe and the stainless steel corrugated outer pipe, and two connecting components are respectively connected to the ends of the water inlet pipe and the drain pipe, wherein the connecting component comprises a first connecting pipe, a clamping ring, a sealing ring, an elastic member, a second connecting pipe and a clamping tooth. In the present invention, the bending of the water suction pipe is simply realized, and it is convenient to adjust the position according to the need to use, and it is convenient to connect and subsequently store water when receiving water, and it is convenient to operate and use.

Description

Technical Field

[0001] The invention relates to the technical field of fire-fighting water suction pipes, and in particular to a bendable vacuum water suction pipe for fire-fighting and a use method thereof. Background Art

[0002] As a commonly used equipment, fire trucks are mainly used by fire brigades for fire extinguishing, auxiliary fire extinguishing or fire rescue. For a fire truck, it has a water storage tank body and a corresponding water suction pipe, which is connected to an external fire hydrant through the water suction pipe to replenish water into the water storage tank body.

[0003] Fire trucks have always used super-hard rubber suction pipes, which have poor overall flexibility and require the cooperation of multiple people to connect the rubber suction pipe to the fire hydrant. The installation is inconvenient and it is not easy to store after the water is replenished. On the other hand, in order to facilitate the connection of the suction pipe to the external fire hydrant, the driver needs to control the distance between the suction pipe and the fire hydrant to reduce the bending amount of the super-hard rubber suction pipe to facilitate the connection between the super-hard rubber suction pipe and the fire hydrant, which places high requirements on the driver. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] The present invention can solve the problem that the existing water suction pipe for fire trucks is too hard, which makes the operation inconvenient and unfavorable for use during water collection and subsequent storage.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned objectives, in a first aspect, the present invention provides a flexible vacuum water suction pipe for fire fighting, comprising a pipe body assembly and a connecting assembly.

[0008] The pipe body assembly includes a stainless steel corrugated outer tube, a soft inner tube, a water inlet pipe and a drain pipe. The water inlet pipe is connected to one end of the stainless steel corrugated outer tube, and the drain pipe is connected to the other end of the stainless steel corrugated outer tube. The soft inner tube is glued to the inner sides of the water inlet pipe and the drain pipe, and the soft inner tube passes through the inner side of the stainless steel corrugated outer tube. An explosion-proof layer is arranged between the soft inner tube and the stainless steel corrugated outer tube.

[0009] There are two connecting assemblies, which are respectively connected to the ends of the water inlet pipe and the drain pipe. The connecting assembly includes a first connecting pipe, a clamping ring, a sealing ring, an elastic member, a second connecting pipe and a clamping tooth. The clamping ring is arranged at the end of the first connecting pipe, and the second connecting pipe is clamped on the inner side of the clamping ring. The sealing ring is arranged between the clamping ring and the first connecting pipe, the elastic member is arranged between the clamping ring and the second connecting pipe, and the clamping tooth is arranged at the end of the second connecting pipe.

[0010] As a preferred technical solution of the present invention, the water inlet pipe and the drain pipe are an integral structure with the stainless steel corrugated outer pipe.

[0011] As a preferred technical solution of the present invention, a first sunken portion is provided at one end of the water inlet pipe adjacent to the stainless steel corrugated outer tube, and a second sunken portion is provided at one end of the drain pipe adjacent to the stainless steel corrugated outer tube. The inner diameter of the water inlet pipe is 4mm-8mm smaller than the inner diameter of the stainless steel corrugated outer tube, and the inner diameter of the drain pipe is 4mm-8mm smaller than the inner diameter of the stainless steel corrugated outer tube.

[0012] As a preferred technical solution of the present invention, the explosion-proof layer includes a glass fiber layer and a carbon fiber layer, the glass fiber layer is arranged on the outside of the soft inner tube, and the carbon fiber layer is arranged on the outside of the glass fiber layer, and the total thickness of the glass fiber layer and the carbon fiber layer is 2mm-6mm.

[0013] As a preferred technical solution of the present invention, it also includes a restraining assembly, which includes a first connecting plate, a second connecting plate and a plurality of steel ropes, the first connecting plate is connected to the outside of the water inlet pipe, the second connecting plate is connected to the outside of the drainage pipe, the central side of the first connecting plate is provided with a plurality of first connecting holes, the central side of the second connecting plate is provided with a plurality of second connecting holes, the plurality of first connecting holes are opposite to the plurality of second connecting holes one by one, and a single steel rope is connected between the opposite single first connecting hole and single second connecting hole.

[0014] As a preferred technical solution of the present invention, the first connecting plate and the second connecting plate are both arranged in a circular ring shape, a plurality of the first connecting holes are arranged in a circular array relative to the center of the first connecting plate, and a plurality of the second connecting holes are arranged in a circular array relative to the center of the second connecting plate.

[0015] As a preferred technical solution of the present invention, an end of the second connecting pipe away from the clamping teeth is provided with an outer protrusion, and the end of the clamping ring is provided with an extension portion that cooperates with the outer protrusion.

[0016] As a preferred technical solution of the present invention, the elastic member is arranged between the extension portion and the convex portion, and the sealing ring is arranged between the convex portion and the first connecting pipe.

[0017] As a preferred technical solution of the present invention, at least three latching teeth are arranged in a central annular array relative to the second connecting pipe, and the cross section of a single latching tooth is arranged in a trapezoidal shape.

[0018] In a second aspect, the present invention further provides a method for using a flexible vacuum water suction pipe for fire fighting, comprising the following steps:

[0019] Remove the pipe assembly and the connection assembly from the fire truck;

[0020] The end of the connecting assembly is connected to the filter screen, and then the connecting assembly is placed in water, or the latch is connected to the connecting head on the fire hydrant. During the connection process, the elasticity of the elastic member squeezes the second connecting pipe, so that the second connecting pipe squeezes the sealing ring, and the sealing ring is used for sealing;

[0021] During the connection process, the stainless steel corrugated outer tube is deformed and bent due to the influence of external force, and the bending direction is the same as the force direction of the stainless steel corrugated outer tube;

[0022] The external water enters the interior of the soft inner tube through the first connecting pipe and the second connecting pipe, and is then transported to the water storage tank of the fire truck for water replenishment operation;

[0023] After the water filling is completed, remove the connection assembly from the water, or remove the connection assembly from the fire hydrant;

[0024] Drain the water in the soft inner tube, and then roll up the tube body assembly and the connecting assembly in the corresponding storage position of the fire truck.

[0025] (III) Beneficial effects

[0026] 1. The flexible vacuum water suction pipe for fire fighting provided by the present invention has a pipe body assembly including a stainless steel corrugated outer pipe, a soft inner pipe, a water inlet pipe and a drain pipe. An explosion-proof layer is provided between the soft inner pipe and the stainless steel corrugated outer pipe. The stainless steel corrugated outer pipe is used to achieve bending. The stainless steel itself has good high temperature resistance, low temperature resistance, high wear resistance index and other properties, so that the service life is longer. The explosion-proof layer increases the stability of its use.

[0027] 2. The flexible vacuum water suction pipe for fire fighting provided by the present invention comprises a connecting assembly including a first connecting pipe, a clamping ring, a sealing ring, an elastic member, a second connecting pipe and a latching tooth. By connecting the latching tooth to the connecting head of the fire hydrant and squeezing the second connecting pipe with the elastic member, the second connecting pipe and the sealing ring are tightly attached to facilitate connection and ensure the sealing after connection.

[0028] 3. The flexible vacuum water suction pipe for fire fighting provided by the present invention has good bending performance as a whole, is easy to store and install, and because it can be bent, it reduces the operating difficulty of the driver, is easy to put into the pool for water collection, is less restricted by the site, and is easy to operate and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 is a front cross-sectional schematic diagram of the present invention;

[0031] Figure 2 It is an enlarged schematic diagram of a partial structure of the restraint assembly of the present invention;

[0032] Figure 3 It is a side cross-sectional schematic diagram of the explosion-proof layer and the soft inner tube structure of the present invention;

[0033] Figure 4 It is a schematic diagram of the structure of the latch tooth part of the present invention;

[0034] Figure 5 It is a schematic side cross-sectional view of the partial structure of the first connecting plate of the present invention.

[0035] In the figure: 100, pipe body assembly; 110, stainless steel corrugated outer tube; 120, soft inner tube; 130, water inlet pipe; 131, first inner sink; 140, drainage pipe; 141, second inner sink; 150, explosion-proof layer; 151, glass fiber layer; 152, carbon fiber layer; 200, connecting assembly; 210, first connecting pipe; 220, clamping ring; 221, extension; 230, sealing ring; 240, elastic member; 250, second connecting pipe; 251, outer protrusion; 260, clamping teeth; 300, restraining assembly; 310, first connecting plate; 320, second connecting plate; 330, wire rope; 340, first connecting hole; 350, second connecting hole.

[0036] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. 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.

[0038] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. 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.

[0039] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0040] In the description of the present invention, it is necessary to understand that the orientations or positional relationships indicated by terms such as “longitudinal”, “up”, “down”, “left”, “right”, “top”, “bottom”, “inside” and “outside” are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0042] like Figures 1 to 5 As shown, the present invention provides a flexible vacuum water suction pipe for fire fighting, including a pipe body assembly 100 and a connecting assembly 200, wherein the connecting assembly 200 is installed at both ends of the pipe body assembly 100, wherein: the pipe body assembly 100 has good bending performance and is convenient for bending and use; the connecting assembly 200 is convenient for connection with an external fire hydrant.

[0043] The pipe body assembly 100 includes a stainless steel corrugated outer tube 110, a soft inner tube 120, a water inlet pipe 130 and a drain pipe 140. The water inlet pipe 130 is connected to one end of the stainless steel corrugated outer tube 110, and the drain pipe 140 is connected to the other end of the stainless steel corrugated outer tube 110. In the specific setting, in order to make the overall sealing better, the water inlet pipe 130 and the drain pipe 140 are an integrated structure with the stainless steel corrugated outer tube 110; the soft inner tube 120 is glued to the inner side of the water inlet pipe 130 and the drain pipe 140, and the soft inner tube 120 is set as a rubber soft inner tube. The soft inner tube 120 passes through the inner side of the stainless steel corrugated outer tube 110, and an explosion-proof layer 150 is set between the soft inner tube 120 and the stainless steel corrugated outer tube 110.

[0044] In this embodiment, in order to facilitate bending and prevent the outer wall of the subsequent soft inner tube 120 from contacting the inner wall of the stainless steel corrugated outer tube 110, a first inner recess 131 is provided at one end of the water inlet pipe 130 adjacent to the stainless steel corrugated outer tube 110, and a second inner recess 141 is provided at one end of the drain pipe 140 adjacent to the stainless steel corrugated outer tube 110. The inner diameter of the water inlet pipe 130 is 4mm-8mm smaller than the inner diameter of the stainless steel corrugated outer tube 110, and the inner diameter of the drain pipe 140 is 4mm-8mm smaller than the inner diameter of the stainless steel corrugated outer tube 110.

[0045] In this embodiment, the explosion-proof layer 150 includes a glass fiber layer 151 and a carbon fiber layer 152. The glass fiber layer 151 is arranged on the outside of the soft inner tube 120, and the carbon fiber layer 152 is arranged on the outside of the glass fiber layer 151. The total thickness of the glass fiber layer 151 and the carbon fiber layer 152 is 2mm-6mm. The glass fiber layer 151 and the carbon fiber layer 152 have good flexibility and strength, which effectively enhance the strength of the soft inner tube 120, thereby enhancing the explosion-proof performance.

[0046] There are two connecting assemblies 200, which are respectively connected to the ends of the water inlet pipe 130 and the drain pipe 140. The connecting assembly 200 includes a first connecting pipe 210, a clamping ring 220, a sealing ring 230, an elastic member 240, a second connecting pipe 250 and a latch 260. The clamping ring 220 is arranged at the end of the first connecting pipe 210, and the second connecting pipe 250 is clamped on the inner side of the clamping ring 220. The sealing ring 230 is arranged between the clamping ring 220 and the first connecting pipe 210, the elastic member 240 is arranged between the clamping ring 220 and the second connecting pipe 250, the elastic member 240 is arranged as a spring or an elastic rubber column, and the latch 260 is arranged at the end of the second connecting pipe 250. When specifically arranged, in order to facilitate connection with an external connector, at least three latches 260 are arranged relative to the central annular array of the second connecting pipe 250, and the cross-section of a single latch 260 is arranged in a trapezoidal shape.

[0047] In this embodiment, in order to achieve a good clamping effect, an outer protrusion 251 is provided at one end of the second connecting tube 250 away from the clamping tooth 260, and an extension portion 221 cooperating with the outer protrusion 251 is provided at the end of the clamping ring 220. In the specific setting, the elastic member 240 is arranged between the extension portion 221 and the outer protrusion 251, and the sealing ring 230 is arranged between the outer protrusion 251 and the first connecting tube 210.

[0048] In the present embodiment, a restraining assembly 300 is also included, and the restraining assembly 300 includes a first connecting plate 310, a second connecting plate 320 and a plurality of steel wire ropes 330. The first connecting plate 310 is connected to the outer side of the water inlet pipe 130, and the second connecting plate 320 is connected to the outer side of the drain pipe 140. A plurality of first connecting holes 340 are opened at the central side of the first connecting plate 310, and a plurality of second connecting holes 350 are opened at the central side of the second connecting plate 320. The plurality of first connecting holes 340 and the plurality of second connecting holes 350 are opposite to each other one by one. A single steel wire rope 330 is connected to the opposite single first connecting hole 340 and single second connecting hole 350. 50, when specifically set, the first connecting plate 310 and the second connecting plate 320 are both set in a circular ring shape, a plurality of first connecting holes 340 are set in a circular array relative to the center of the first connecting plate 310, and a plurality of second connecting holes 350 are set in a circular array relative to the center of the second connecting plate 320. When used specifically, since the deformation amount of the stainless steel corrugated outer tube 110 when fully horizontally stretched is effective, in order to prevent the stretching amount from being greater than the maximum deformation amount of the stainless steel corrugated outer tube 110 and to prevent the stainless steel corrugated outer tube 110 from being damaged, the deformation amount is limited by a plurality of steel wire ropes 330 to ensure the good use of the stainless steel corrugated outer tube 110.

[0049] In addition, the present invention also provides a method for using a flexible vacuum water suction pipe for fire fighting, which specifically comprises the following steps:

[0050] Remove the pipe body assembly 100 and the connection assembly 200 from the fire truck;

[0051] The end of the connecting assembly 200 is connected to the filter screen, and then the connecting assembly is placed in water, or the latch 260 is connected to the connecting head on the fire hydrant. During the connection process, the elasticity of the elastic member 240 squeezes the second connecting pipe 250, so that the second connecting pipe 250 squeezes the sealing ring 230, and the sealing ring 230 is used to seal.

[0052] During the connection process, the stainless steel corrugated outer tube 110 is deformed and bent by the external force, and the bending direction is the same as the force direction of the stainless steel corrugated outer tube 110;

[0053] The external water enters the soft inner tube 120 through the first connecting tube 210 and the second connecting tube 250, and then is transported to the water storage tank of the fire truck for water replenishment operation;

[0054] After the water replenishment is completed, the connection assembly 200 is taken out of the water, or the connection assembly 200 is removed from the fire hydrant;

[0055] The water in the soft inner tube 120 is drained, and then the pipe body assembly 100 and the connecting assembly 200 are rolled up in the corresponding storage position of the fire truck.

[0056] In summary, bending is achieved through the stainless steel corrugated outer tube 110, and the stainless steel itself has good high temperature resistance, low temperature resistance, high wear resistance index and other properties, which makes the service life longer, and the explosion-proof layer increases its stability in use; the whole has good bending performance, is easy to store, easy to install, and because it can be bent, it reduces the difficulty of operation for the driver, is easy to put into the pool for water collection, is less restricted by the site, and is easy to operate and use.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A flexible vacuum water suction hose for fire fighting, characterized in that: include: A pipe body assembly (100), the pipe body assembly (100) comprising a stainless steel corrugated outer tube (110), a soft inner tube (120), a water inlet pipe (130) and a drain pipe (140), the water inlet pipe (130) being connected to one end of the stainless steel corrugated outer tube (110), the drain pipe (140) being connected to the other end of the stainless steel corrugated outer tube (110), the soft inner tube (120) being glued to the inner sides of the water inlet pipe (130) and the drain pipe (140), the soft inner tube (120) passing through the inner side of the stainless steel corrugated outer tube (110), and an explosion-proof layer (150) being provided between the soft inner tube (120) and the stainless steel corrugated outer tube (110); A connection assembly (200), wherein two connection assemblies (200) are provided, and the two connection assemblies (200) are respectively connected to the ends of the water inlet pipe (130) and the drain pipe (140), and the connection assembly (200) comprises a first connection pipe (210), a clamping ring (220), a sealing ring (230), an elastic member (240), a second connection pipe (250), and a latching tooth (260), wherein the clamping ring (220) is provided at the end of the first connection pipe (210), the second connection pipe (250) is latched on the inner side of the clamping ring (220), the sealing ring (230) is provided between the clamping ring (220) and the first connection pipe (210), the elastic member (240) is provided between the clamping ring (220) and the second connection pipe (250), and the latching tooth (260) is provided at the end of the second connection pipe (250); The invention also comprises a restraining assembly (300), wherein the restraining assembly (300) comprises a first connecting plate (310), a second connecting plate (320) and a plurality of steel wire ropes (330), wherein the first connecting plate (310) is connected to the outer side of the water inlet pipe (130), and the second connecting plate (320) is connected to the outer side of the drainage pipe (140), a plurality of first connecting holes (340) are opened on the central side of the first connecting plate (310), and a plurality of second connecting holes (350) are opened on the central side of the second connecting plate (320), the plurality of first connecting holes (340) and the plurality of second connecting holes (350) are opposite to each other, and a single steel wire rope (330) is connected between a single first connecting hole (340) and a single second connecting hole (350) that are opposite to each other.

2. A flexible vacuum water suction hose for firefighting according to claim 1, characterized in that: The water inlet pipe (130) and the drain pipe (140) are an integral structure with the stainless steel corrugated outer pipe (110).

3. A flexible vacuum water suction hose for firefighting according to claim 1, characterized in that: A first inner recess (131) is provided at one end of the water inlet pipe (130) adjacent to the stainless steel corrugated outer pipe (110), and a second inner recess (141) is provided at one end of the drainage pipe (140) adjacent to the stainless steel corrugated outer pipe (110). The inner diameter of the water inlet pipe (130) is 4 mm to 8 mm smaller than the inner diameter of the stainless steel corrugated outer pipe (110), and the inner diameter of the drainage pipe (140) is 4 mm to 8 mm smaller than the inner diameter of the stainless steel corrugated outer pipe (110).

4. A flexible vacuum water suction hose for firefighting according to claim 1, characterized in that: The explosion-proof layer (150) comprises a glass fiber layer (151) and a carbon fiber layer (152); the glass fiber layer (151) is arranged on the outside of the soft inner tube (120); the carbon fiber layer (152) is arranged on the outside of the glass fiber layer (151); and the total thickness of the glass fiber layer (151) and the carbon fiber layer (152) is between 2 mm and 6 mm.

5. A flexible vacuum water suction hose for firefighting according to claim 1, characterized in that: The first connecting plate (310) and the second connecting plate (320) are both arranged in a circular ring shape, a plurality of the first connecting holes (340) are arranged in a circular array relative to the center of the first connecting plate (310), and a plurality of the second connecting holes (350) are arranged in a circular array relative to the center of the second connecting plate (320).

6. A flexible vacuum water suction hose for firefighting according to claim 1, characterized in that: An end of the second connecting pipe (250) away from the latching teeth (260) is provided with an outer protrusion (251), and an end of the latch ring (220) is provided with an extension (221) that matches the outer protrusion (251).

7. A flexible vacuum water suction hose for firefighting according to claim 6, characterized in that: The elastic member (240) is arranged between the extension portion (221) and the convex portion (251), and the sealing ring (230) is arranged between the convex portion (251) and the first connecting pipe (210).

8. The flexible vacuum water suction hose for fire fighting according to claim 1, characterized in that: At least three of the latch teeth (260) are arranged in a central annular array relative to the second connecting tube (250), and the cross section of a single latch tooth (260) is arranged in a trapezoidal shape.

9. A method for using a flexible vacuum water suction hose for fire fighting, characterized in that: A flexible vacuum water suction pipe for firefighting as described in any one of claims 1 to 8 specifically comprises the following steps: removing the pipe body assembly and the connecting assembly from the fire truck; connecting the end of the connecting assembly to the filter screen, and then placing the connecting assembly in water, or connecting the latch to the connecting head on the fire hydrant, and during the connection process, the second connecting pipe is elastically squeezed by the elastic member so that the second connecting pipe squeezes the sealing ring and is sealed by the sealing ring; during the connection process, the stainless steel corrugated outer tube is deformed and bent by the external force, and the bending direction is the same as the force direction of the stainless steel corrugated outer tube; the external water enters the interior of the soft inner tube through the first connecting tube and the second connecting tube, and then is transported to the water storage tank of the fire truck for water replenishment; after the water replenishment is completed, the connecting assembly is taken out of the water, or the connecting assembly is removed from the fire hydrant; the water in the soft inner tube is drained, and then the pipe body assembly and the connecting assembly are rolled up in the corresponding storage position of the fire truck.

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