Water cannon rod

Abstract

The utility model relates to a water cannon rod which comprises a water outlet lifting rod piece and a pneumatic lifting rod piece. The water outlet lifting rod piece is composed of a plurality of water outlet rods which are sequentially connected from inside to outside in a sleeved mode, every two adjacent water outlet rods are in vertical sliding telescopic fit, all the water outlet rods are in sealing fit and internally communicated to form a water outlet channel, the lower end of the water outlet channel is a water inlet end, and the upper end of the water outlet channel is a water outlet end. The pneumatic lifting rod piece is composed of a plurality of pneumatic rods which are sequentially connected in a sleeved mode from inside to outside, every two adjacent pneumatic rods are in vertical sliding telescopic fit, the water outlet lifting rod piece is arranged in the pneumatic lifting rod piece in a penetrating mode, the water outlet rod on the outermost side is fixed to the bottom end of the pneumatic rod on the outermost side, and the water outlet rod on the innermost side is fixed to the top end of the pneumatic rod on the innermost side. A closed pneumatic cavity is defined by the water outlet lifting rod piece and the pneumatic lifting rod piece, the lower end of the pneumatic cavity is communicated with an air nozzle, and the air nozzle is used for ventilating or exhausting air into the pneumatic cavity so that the two lifting rod pieces can synchronously ascend and descend. The water cannon rod is lifted efficiently to adapt to high-rise fire extinguishing, and water delivery is stable.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire fighting equipment technical field, concretely relates to a fire water cannon rod for fire scene. BACKGROUND

[0002] In the field of fire rescue, the lifting height of the fire water cannon directly determines the coverage of fire fighting, especially in high-rise fire scene, the aerial work ability of the equipment is crucial. In the fire water cannon disclosed in CN222488718U, a telescopic frame is arranged, which comprises an outer rod seat, four universal wheels are fixedly connected to the bottom corners of the outer rod seat, a fixed column is fixedly connected to the top of the outer rod seat, a lifting groove is formed in the top of the fixed column, a lifting column is slidably connected in the lifting groove, a threaded groove is formed in the bottom of the lifting column, a lifting motor is fixedly connected to the groove bottom of the lifting groove, a transmission rod is fixedly connected to the output end of the lifting motor, the top of the transmission rod extends into the threaded groove and is fixedly connected with a threaded block, the threaded block is threadedly connected with the threaded groove, a bearing is fixedly connected to the center of the top of the lifting column, a transmission shaft is fixedly connected in the bearing, a rotating disc is fixedly connected to the top of the bearing, a hinge piece is fixedly connected to the top of the rotating disc, and a fire water cannon body is hingedly connected in the hinge piece. When in use, the pneumatic lifting motor drives the transmission rod and the threaded block to rotate in the threaded groove of the lifting column. At this time, the limiting block on the lifting column can only move linearly in the limiting groove, so that the lifting column can only move linearly. When the lifting column drives the fire water cannon body to rise to the appropriate position, the lifting motor can be turned off. Then, the input end of the fire water cannon body is connected with an external water source, and the fire water cannon body can be used for water spraying.

[0003] This structure has the following problems: first, the lifting height is limited, the lifting power completely depends on the lifting motor, and is lifted by the cooperation of the transmission rod and the threaded block, so that the load capacity of the lifting motor is limited, and the actual lifting distance is short, and the fire floor of the high-rise building cannot be reached, and it is only suitable for ground or low-rise fire extinguishing; second, the water pipe is connected with the water cannon body, the higher the lifting height, the longer the stretching length of the water pipe, which not only increases the driving load of the lifting motor due to the self-weight of the water pipe, but also causes water blockage due to winding and bending of the water pipe. Therefore, a water cannon rod design scheme which can break through the height limitation and adapt to aerial work is needed. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of water cannon rods for overcoming the defects of prior art, and provide a water cannon rod suitable for high-rise fire extinguishing, water transmission is stable and lifting is efficient.

[0005] The technical scheme of the utility model: a water cannon rod, including water outlet lifting rod piece and pneumatic lifting rod piece;

[0006] The water outlet lifting rod member is composed of a plurality of water outlet rods which are sequentially sleeved from inside to outside, and adjacent two water outlet rods are in sliding telescopic cooperation, and the water outlet rods are in sealing cooperation and internally through to form a water outlet channel, and the lower end of the water outlet channel is a water inlet end and the upper end is a water outlet end.

[0007] The pneumatic lifting rod member is composed of a plurality of pneumatic rods which are sequentially sleeved from inside to outside, and adjacent two pneumatic rods are in sliding telescopic cooperation, and the pneumatic rods are in sealing cooperation, the water outlet lifting rod member is arranged in the pneumatic lifting rod member, and the outermost water outlet rod is fixed to the bottom end of the outermost pneumatic rod, and the innermost water outlet rod is fixed to the top end of the innermost pneumatic rod.

[0008] The water outlet lifting rod member and the pneumatic lifting rod member form a sealed pneumatic chamber, and the lower end of the pneumatic chamber is communicated with an air nozzle, and the air nozzle is used for air supply or exhaust of the pneumatic chamber, so that the two lifting rod members are synchronously lifted.

[0009] By adopting the above technical scheme, the water outlet lifting rod member and the pneumatic lifting rod member are designed to be sequentially sleeved in multiple sections, and adjacent rods can slide up and down to directly realize length adjustment to adapt to different water spraying heights; the water outlet channel is formed by sealing cooperation between the water outlet rods and internal through, the sealing structure blocks the leakage path of the sleeve gap, ensures that the water flow is completely sealed and conducted from the water inlet end to the water outlet end, and does not leak and continuously flow during lifting; the pneumatic chamber is formed by sealing cooperation between the pneumatic rods and the water outlet rods arranged therein, and the corresponding fixing of the outermost and innermost rod bodies realizes linkage of the two rod members as a whole, when the air nozzle is ventilated, the pressure of the pneumatic chamber increases to push the pneumatic rod and the water outlet rod to synchronously rise, when the air is exhausted, the pressure of the pneumatic chamber decreases, and the pneumatic rod and the water outlet rod can synchronously descend due to their own gravity. Without additional transmission mechanism, the core functions of "height adjustable, continuous water conveying, efficient and stable lifting" are realized.

[0010] Further, the innermost water outlet rod and the innermost pneumatic rod are connected by an end cap member, the upper end of the pneumatic chamber is closed by the end cap member, and a water outlet hole is formed in the middle of the end cap member and is communicated with the water outlet end of the water outlet channel.

[0011] By adopting the further setting, the end cap member connects the innermost water outlet rod and the top end of the pneumatic rod to force synchronous movement of the two rods, and the end cap closes the upper end of the pneumatic chamber to form a complete pressure chamber in cooperation with the pneumatic rod, and after inflation, the internal gas pushes the end cap member upward and drives the two rods to synchronously rise, and the water outlet hole in the middle of the end cap is connected to the water outlet channel to ensure smooth water conveying.

[0012] The further setting of the utility model discloses: the end cap component has inner end and outer end, the inner end inserts the most inside water outlet rod and seals cooperation, and is fixed through bolt, the outer end inserts the most inside pneumatic rod and seals cooperation, and is fixed through bolt.

[0013] The further setting is adopted, and the inner and outer end of the end cap inserts the most inside water outlet rod and pneumatic rod respectively, adopts sealing cooperation, effectively blocks the air leakage and water leakage path of the gap between the end and the rod body, and the connecting mode of bolt fixing has detachability while guaranteeing the firmness of connection, is convenient for dismounting and overhauling, and does not need to destroy the overall structure.

[0014] The further setting of the utility model discloses: the multiple water outlet rods of the water outlet lifting rod piece are coaxially sleeved, the multiple pneumatic rods of the pneumatic lifting rod piece are coaxially sleeved, and the water outlet lifting rod piece and the pneumatic lifting rod piece are coaxially arranged.

[0015] The further setting is adopted, and each section rod body moves along the same axis when stretching and contracting, avoids uneven sleeve joint gap and mutual friction due to different shafts, and the double rod pieces are coaxially arranged as a whole, so that the water outlet rod is centrally distributed in the pneumatic rod, the annular gap of the pneumatic chamber between the two rods is uniform, the air pressure can uniformly act on the inner end surface of the pneumatic rod when inflating, the force balance and smooth action during lifting are guaranteed, and the wear of parts is reduced.

[0016] The further setting of the utility model discloses: the lower part between the outer wall of each inside water outlet rod and the inner wall of the adjacent outside water outlet rod is equipped with sealing element A, and the lower part between the outer wall of each inside pneumatic rod and the inner wall of the adjacent outside pneumatic rod is equipped with sealing element B.

[0017] The further setting is adopted, and the double sealing effect of sealing element A and sealing element B effectively prevents the leakage of water flow and gas during the stretching and contraction of the rod body, and further improves the sealing performance and operating stability of the equipment. Wherein sealing element A prevents the water in the water outlet channel from penetrating into the pneumatic chamber, avoiding the rusting of the pneumatic parts by water, and sealing element B blocks the gas leakage path of the pneumatic chamber, ensuring the stability of air pressure.

[0018] The further setting of the utility model discloses: the lower end of the outermost water outlet rod is arranged on the inner rod seat, the inner rod seat is equipped with water inlet hole that communicates with the water inlet end of the water outlet channel, the lower end of the outermost pneumatic rod is arranged on the outer rod seat, the outer rod seat is equipped with air channel that communicates with the pneumatic chamber, and the air nozzle is arranged on the outer rod seat and communicates with the air channel.

[0019] The further setting is adopted, and the lower end of the outermost water outlet rod and pneumatic rod is arranged on the inner and outer rod seats respectively, and the two seat bodies provide stable bottom support for the outermost rod body, reducing the shaking during lifting, the water inlet hole of the inner rod seat is connected with the water outlet channel, and the air channel of the outer rod seat is connected with the pneumatic chamber, so that the water supply pipe and the air pipe can be connected to the rod seat respectively.

[0020] The further setting of the utility model is: the inner rod base and the outer rod base are bolted on the flange plate, the lower end of the outermost water outlet rod is sealedly connected with the inner rod base, the lower end of the outermost pneumatic rod is sealedly connected with the outer rod base and is bolted, and the flange plate is provided with a water inlet joint corresponding to the water inlet hole.

[0021] The further setting is adopted, the outer rod base is fixed through the flange plate, the installation surface of the two rod bases is guaranteed to be flat, and the lifting precision of the outermost rod body is avoided from being affected by installation inclination; the water inlet joint of the flange plate corresponds to the water inlet hole of the inner rod base, the water supply pipe can be directly connected with the water inlet joint and communicate with the water outlet channel, and the pipeline connection process is simplified. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the structure diagram of the embodiment of the utility model;

[0023] Figure 2 It is the internal structure diagram of the embodiment of the utility model;

[0024] Figure 3 It is Figure 2 It is the local enlarged view of the I part;

[0025] Figure 4 It is Figure 2 It is the local enlarged view of the II part;

[0026] Figure 5 It is the water outlet lifting rod structure diagram of the embodiment of the utility model;

[0027] Figure 6 It is the pneumatic lifting rod structure diagram of the embodiment of the utility model.

[0028] Water outlet lifting rod 1, water outlet rod 11, water outlet channel 12, inner rod base 14, water inlet hole 141, flange plate 16, water inlet joint 17, pneumatic lifting rod 2, pneumatic rod 21, outer rod base 23, air passage 231, pneumatic chamber 3, air nozzle 4, end cap component 5, water outlet hole 51, inner end head 52, outer end head 53, sealing member A 61, sealing member B 62. PREFERRED EMBODIMENT

[0029] The technical scheme in the embodiment will be described clearly and completely in combination with the drawings. Apparently, the described embodiment is only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0030] As Figures 1-6The utility model discloses a water cannon rod, including water outlet lifting rod piece 1 and pneumatic lifting rod piece 2,

[0031] The water outlet lifting rod piece 1 is formed by a plurality of water outlet rods 11 that are sequentially sleeved from inside to outside, and the adjacent two water outlet rods 11 are in sliding and telescopic cooperation, the water outlet rods 11 are in sealing cooperation and are internally connected to form a water outlet channel 12, and the lower end of the water outlet channel 12 is a water inlet end and the upper end is a water outlet end.

[0032] The pneumatic lifting rod piece 2 is formed by a plurality of pneumatic rods 21 that are sequentially sleeved from inside to outside, and the adjacent two pneumatic rods 21 are in sliding and telescopic cooperation, the pneumatic rods 21 are in sealing cooperation, the water outlet lifting rod piece 1 is arranged in the pneumatic lifting rod piece 2, and the outermost water outlet rod 11 is fixed to the bottom end of the outermost pneumatic rod 21, and the innermost water outlet rod 11 is fixed to the top end of the innermost pneumatic rod 21.

[0033] The water outlet lifting rod piece 1 and the pneumatic lifting rod piece 2 form a sealed pneumatic chamber 3, and the lower end of the pneumatic chamber 3 is connected to an air nozzle 4, and the air nozzle 4 is used for air supply or exhaust of the pneumatic chamber 3, so that the two lifting rod pieces are synchronously lifted.

[0034] Specifically, the innermost water outlet rod 11 and the innermost pneumatic rod 21 are connected through an end cap component 5, the upper end of the pneumatic chamber 3 is closed by the end cap component 5, and a water outlet hole 51 is formed in the middle of the end cap component 5, and the water outlet hole 51 is connected to the water outlet end of the water outlet channel 12. The end cap component 5 has an inner end head 52 and an outer end head 53, the inner end head 52 is inserted into the innermost water outlet rod 11 in sealing cooperation and is fixed by a bolt, and the outer end head 53 is inserted into the innermost pneumatic rod 21 in sealing cooperation and is fixed by a bolt.

[0035] Specifically, the plurality of water outlet rods 11 of the water outlet lifting rod piece 1 are coaxially sleeved, the plurality of pneumatic rods 21 of the pneumatic lifting rod piece 2 are coaxially sleeved, and the water outlet lifting rod piece 1 and the pneumatic lifting rod piece 2 are coaxially arranged.

[0036] Specifically, the lower part of the outer wall of each inner water outlet rod 11 and the inner wall of the adjacent outer water outlet rod 11 are provided with a sealing element A61, and the lower part of the outer wall of each inner pneumatic rod 21 and the inner wall of the adjacent outer pneumatic rod 21 are provided with a sealing element B62.

[0037] The adjacent two slidingly connected rods can be limited in telescopic distance by the limiting structure.

[0038] Specifically, the lower end of the outermost water outlet rod 11 is arranged on an inner rod base 14, the inner rod base 14 is provided with a water inlet hole 141 in communication with the water inlet end of the water outlet channel 12; the lower end of the outermost pneumatic rod 21 is arranged on an outer rod base 23, the outer rod base 23 is provided with an air passage 231 in communication with the pneumatic chamber 3, and the air nozzle 4 is arranged on the outer rod base 23 and in communication with the air passage 231. The inner rod base 14 and the outer rod base 23 are fixed on the flange plate 16 by bolts, the lower end of the outermost water outlet rod 11 is sealingly sleeved with the inner rod base 14 and fixed by bolts, the lower end of the outermost pneumatic rod 21 is sealingly sleeved with the outer rod base 23 and fixed by bolts, and the flange plate 16 is provided with a water inlet connector 17 at the position corresponding to the water inlet hole. The flange plate can be arranged on the mobile chassis to facilitate movement.

[0039] In the above structure, in addition to the bolt, a latch can also be used for fixation.

[0040] The working principle of the water cannon rod is: coaxial linkage of double rod members + pneumatic drive + internal water delivery.

[0041] 1. Rising stage: the external air source is ventilated to the air passage 231 through the air nozzle 4 on the outer rod base 23, the gas enters the closed pneumatic chamber 3 surrounded by the water outlet lifting rod member 1 and the pneumatic lifting rod member 2, as the chamber pressure rises, the air pressure generates an upward thrust on the end cap component 5, since the innermost water outlet rod 11 and the innermost pneumatic rod 21 are fixed through the end cap component 5, the thrust drives the multiple rod bodies of the two groups of rod members to synchronously stretch out coaxially upward, when the rod members are elongated to the target height, the air nozzle 4 stops ventilation and keeps the air pressure in the pneumatic chamber 3 stable; at the same time, the water supply pipeline is connected through the water inlet connector 17 of the flange plate 16, the water flows into the water outlet channel 12 through the water inlet hole 141 of the inner rod base 14, and finally is sprayed out from the water outlet hole 51 of the end cap component 5. In this stage, the sealing member A61 prevents the water flow from seeping into the pneumatic chamber 3, and the sealing member B62 prevents air pressure leakage.

[0042] 2. Dropping stage: the gas in the pneumatic chamber 3 is discharged by the air nozzle 4, the chamber pressure decreases, and under the action of the gravity of the water cannon rod, the multiple water outlet rods 11 and pneumatic rods 21 synchronously contract downward, and the rod bodies return to the initial contraction state.

[0043] It should be noted that all the directional indications (such as up, down, front, back, etc.) in the description of the utility model are only used to explain the relative position relationship, movement condition and the like between the components in a certain specific posture (as shown in the drawings), if the specific posture changes, the directional indications also change accordingly.

[0044] In addition, the description such as "first", "second" and the like in the utility model is only used for the purpose of description, and cannot be understood as indicating or implying the relative importance of the same or implicitly indicating the number of the indicated technical features. In the description of the utility model, the meaning of "several" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0045] In the description of the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "coupling", "connection", "fixing" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

Claims

1. A water cannon pole, characterized by: The water outlet lifting rod (1) and the pneumatic lifting rod (2) are included. The water outlet lifting rod (1) is composed of several water outlet rods (11) which are sequentially sleeved from inside to outside. The pneumatic lifting rod (2) is composed of several pneumatic rods (21) which are sequentially sleeved from inside to outside. The water outlet lifting rod (1) and the pneumatic lifting rod (2) are coaxially arranged.

2. The water cannon bar of claim 1, wherein: The lower part of the outer wall of each inner water outlet rod (11) and the inner wall of the adjacent outer water outlet rod (11) are provided with a sealing element A (61).

3. The water cannon bar of claim 2, wherein: The lower end of the outermost water outlet rod (11) is arranged on the inner rod seat (14), and the inner rod seat (14) is provided with a water inlet hole (141) which is in communication with the water inlet end of the water outlet channel (12).

4. A water cannon lance according to claim 1 or 2 or 3, characterised in that: The lower end of the outermost pneumatic rod (21) is arranged on the outer rod seat (23), and the outer rod seat (23) is provided with an air channel (231) which is in communication with the pneumatic chamber (3).

5. A water cannon lance according to claim 1 or 2 or 3, characterised in that: The air nozzle (4) is arranged on the outer rod seat (23) and is in communication with the air channel (231).

6. A water cannon lance according to claim 1 or 2 or 3, characterised in that: ​ 7. The water cannon bar of claim 6, wherein: The inner rod seat (14) and the outer rod seat (23) are fixed on the flange plate (16) by bolts, the lower end of the outermost water outlet rod (11) is sealingly connected with the inner rod seat (14), the lower end of the outermost pneumatic rod (21) is sealingly connected with the outer rod seat (23) and is fixed by bolts, and the flange plate (16) is provided with a water inlet connector (17) at a position corresponding to the water inlet hole.

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