KR102049528B1 - Fire Engine Work Platform for Saving Life having a Connecting Water Pipe - Google Patents

Abstract

The present invention relates to a lifesaving fire engine work platform capable of preparing a boarding space for a high-place lifesaving work. The lifesaving fire engine work platform having a water pipe combination structure includes: a firefighting work platform including a hollow hole penetrating the floor surface vertically; a main frame combined with the front end of a boom stand having a multistage lead-in structure; a body assembly comprising a boom body extended forward, and a top body installed in response to the lower part of the firefighting work platform and combined with the upper part of the boom body; and a water pipe joint supporting the top body and the firefighting work platform to be rotatable.

Description

Fire Engine Work Platform for Saving Life having a Connecting Water Pipe}

The present invention relates to a lifesaving fire truck work bench having a water pipe coupling structure, and more specifically, to combine the water pipe to the workbench having a structure that can be mounted on the top of the boom of the fire truck, fire rescue work as well as fire rescue for fire rescue. It relates to a lifesaving fire truck work platform having a water pipe coupling structure capable of carrying out work collectively.

In general, fire trucks are used to extinguish fires with fire extinguishing liquids when they are fired. Fire trucks are equipped with a pump fire truck equipped with a high-power main pump and a water tank equipped with a water tank. Chemical fire trucks spraying special fire extinguishing fluids, and ladder fire trucks equipped with ladders to rescue people in high-rise buildings.

When such a fire truck occurs, various types of fire trucks described above are dispatched to the fire site to extinguish the fire.

However, compared to the increase in the number of vehicles, the road is not able to reach the increase, and it is difficult for the fire truck to move to the fire site due to the width of the road, the lack of the fire road, the illegal parking on the road, and the like. In order to complete the fire extinguishing according to each role by dispatching to the fire site, a huge economical loss occurred, and the rapid fire extinguishing was difficult.

As a prior art that has been disclosed to solve the above problems, Republic of Korea Patent Publication No. 1050257 (2011.07.12.) And the digestive fluid tank for storing the extinguishing fluid, and connected to the extinguishing fluid tank in the extinguishing fluid tank by driving the engine A high pressure pump for forcibly discharging the stored extinguishing liquid, a discharge hose connected to the selection valve connected to the high pressure pump to receive the extinguishing liquid supplied from the high pressure pump, a hose reel in which the discharge hose is wound several times, and the call A fog gun connected to the discharge hose wound around the thrill and spraying the extinguishing liquid supplied to the discharge hose in the form of a mist, and a selection valve connected to the high pressure pump, mounted on a fire truck and supplied from a high pressure pump Turbofan-type fine water spray device for injecting extinguishing fluid in a fine mist state, and driving each component of the fire engine from the user In a small fire truck composed of an operation panel for receiving an operation signal for the control, the high pressure pump is discharged from the high pressure pump and supplied to the fog gun or atomizing water spraying device, and the remaining extinguishing liquid is cooled through a cooling induction pipe passing through the extinguishing tank to the high pressure pump. As it is configured to be resupply, a small fire truck equipped with a turbo fan-type atomizing spray device capable of quickly and safely moving while promoting free running in a narrow street of an alley or a shopping district is known.

In addition, Korean Patent Publication No. 1663500 (September 30, 2016) is mounted on the upper end of the upper ladder of the upper ladder of the new ladder forming the ladder assembly of the ladder car and the elevator is ascending along the ladder assembly and the elevator is raised and finally stopped. An omnidirectional distance detecting sensor for measuring a distance between the end positions; Lateral distance detection sensors for sensing the distance to the object on both sides of the upper unit ladder of the stretchable ladder; A first display unit displaying a distance between the lift and the end position detected by the omnidirectional distance sensor, the upper unit ladder detected by the lateral distance sensors, and an object positioned to the left or right; A display unit including a second display unit for displaying a distance; And a control unit for controlling a rising speed of the elevating vehicle, wherein the first display unit of the display unit displays the distance between the elevating vehicle and the end position and the speed of the elevating vehicle in the size of a bar graph. 2 The display unit is configured such that the distance between the upper end of the upper unit ladder and the object located to the left and right and the rotational speed of the upper end of the upper unit ladder detected by the lateral distance sensor is displayed in the size of the bar graph Firefighting ladder safety devices are known that can promote the safety of the workers on board the elevator and facilitate the operation.

However, in the prior art, Patent No. 1050257, it is difficult to extinguish fires in high-rise buildings because the fire extinguishing fluid can be adjusted only at the position of the fire truck, there is a problem that the rescue operation is not possible.

In addition, in the case of the above-mentioned prior art, Korean Patent No. 1663500 is provided with only a lift for a firefighter's boarding on a barn ladder that can only be extended in length, so that the setting of the switching angle for changing the working direction is extremely limited. There is a technical limitation that the application and function of the fire truck is extremely limited because the workability for fire suppression is inferior and only the lifesaving according to the aerial work can be performed.

KR Patent Registration No. 10-1050257 (2011.07.12.) KR Patent Publication No. 10-1663500 (2016.09.30.)

The present invention is to solve the above problems, it is composed of a coupling structure in which the water pipe is connected to the workbench of the fire truck by the joint to promote stability in the driving and rotational drive for the horizontal maintenance of the workbench, basic lifesaving structure of the fire truck To provide a life-saving fire truck work platform having a water pipe coupling structure that can be flexibly accompanied with the use and function of the fire truck capable of extinguishing work with the work, the purpose.

In addition, the present invention is configured to support and secure the lower part of the workbench from the top of the boom of the fire truck to increase the workability and stability of the worker and at the same time life-saving fire truck workbench having a water pipe coupling structure that can promote the infinite rotation drive structure of the workbench It is to provide.

The lifesaving fire truck work bench having a water pipe coupling structure proposed by the present invention is a lifesaving fire truck work bench mounted on a boom of a fire engine to provide a boarding space for a worker's lifesaving work, and having a handrail along an upper outer edge thereof. Fire fighting work platform to form a vertical hole through the bottom vertically; A main frame connected to the boom end of the multi-stage retractable structure, the length of which extends from the chassis of the fire truck; A boom body connected to one end of the main frame and extending forward, and a top body installed to correspond to a lower portion of the fire fighting platform and rotatably connected to the boom body in a vertical direction. Body assembly; A horizontal holding unit installed inside the main frame and extending toward the boom body, one end of which is coupled to the top body to extend and drive the fire extinguishing platform horizontally; A rotation driving unit located between the fire fighting work platform and the top body of the body assembly and applying power for rotation driving of the fire fighting work table; A water pipe assembly connected to the body assembly to form a water channel through which water can be supplied from the outside, and extending upwardly toward the hollow hole of the fire fighting work bench; And a water pipe joint installed on the body assembly and supporting the water pipe assembly to rotatably support the top body and the fire fighting work table by driving the horizontal holding unit and the rotary driving unit.

The rotary drive unit is provided with a ring gear installed in the lower portion of the fire extinguishing platform, and driving means for engaging the ring gear to apply a rotational force.

The water pipe assembly is a cylinder pipe which is formed parallel to each other on the side of the main frame to extend the length, and is installed on the water pipe joint to be located on the outside of the body assembly and connects one end of the cylinder pipe An outer connection pipe, an inner water pipe connected to the water pipe joint inside the body assembly and extending in a vertical direction toward the hollow hole of the fire station, and connected to an upper end of the inner water pipe, It constitutes a waterproof nozzle which makes water sprayable.

The inner water pipe includes a fixing plate protruding outward and fixedly installed on the top body of the body assembly.

The water pipe joint includes an outer body that binds the water pipe assembly to one end and forms a binding hole therein, and an inner binding body that fits on the binding hole of the outer body and binds the water pipe assembly to one end. The outer body and the inner binding body constitute a hollow passage formed in communication with the water pipe assembly to move the water.

The water pipe joint is a first water pipe joint which is installed to be connected to the water pipe assembly in the transverse direction on the body assembly, is installed on the top body of the body assembly is connected to the water pipe assembly in the longitudinal direction A second water pipe joint is formed.

According to the lifesaving fire truck work platform having a water pipe coupling structure according to the present invention by installing a water pipe assembly having a waterway so that water can be supplied to the fire fighting work platform while expanding the range of use according to the use of the fire truck, as well as fire rescue work It is possible to move the work flexibly. Furthermore, since the water pipe joint is formed at the connection point of the water pipe assembly for driving the horizontal maintenance unit and the rotary drive unit of the fire fighting work platform, the horizontal work and the up and down rotation work of the fire fighting work are smooth, and the water pipe for the water supply is prevented from leaking. And an effect capable of preventing breakage.

In addition, the life-saving fire truck work platform having a water pipe coupling structure according to the present invention supports the upper part of the fire truck to correspond to the lower part of the fire work bench, thus enhancing the support efficiency of the fire work bench and ensuring the work stability of the worker. In addition, there is an effect that can achieve infinite rotation without restrictions on the rotational operation of the fire fighting platform.

1 is a front view showing a fire truck to which one embodiment according to the present invention is applied.
Figure 2 is a bottom perspective view showing one embodiment according to the present invention.
Figure 3 is a front sectional view showing an embodiment according to the present invention.
Figure 4 is a side view showing an embodiment according to the present invention.
5 is a plan view showing an embodiment according to the present invention.
Figure 6 is a block diagram showing a water pipe assembly in one embodiment according to the present invention.
Figure 7 is a cross-sectional view showing a cylinder pipe in one embodiment according to the present invention.
Figure 8 is a cross-sectional view showing a water pipe joint in one embodiment according to the present invention.

The present invention is a life-saving fire truck work platform that is mounted on the boom of the fire truck to provide a boarding space for the rescue workers of the height of the worker, having a handrail along the upper outer border, and forms a hollow hole vertically penetrating the bottom surface A fire brigade; A main frame connected to the boom end of the multi-stage retractable structure, the length of which extends from the chassis of the fire truck; A boom body connected to one end of the main frame and extending forward, and a top body installed to correspond to a lower portion of the fire fighting platform and rotatably connected to the boom body in a vertical direction. Body assembly; A horizontal holding unit installed inside the main frame and extending toward the boom body, one end of which is coupled to the top body to extend and drive the fire extinguishing platform horizontally; A rotation driving unit located between the fire fighting work platform and the top body of the body assembly and applying power for rotation driving of the fire fighting work table; A water pipe assembly connected to the body assembly to form a water channel through which water can be supplied from the outside, and extending upwardly toward the hollow hole of the fire fighting work bench; And a water pipe joint installed on the body assembly to support and support the water pipe assembly, the water pipe joint rotatably supporting the top body and the fire fighting work table by driving the horizontal holding unit and the rotary driving unit. Lifesaving fire truck work platform is a feature of technical construction.

Next, a preferred embodiment of a lifesaving fire truck work bench having a water pipe coupling structure according to the present invention will be described in detail with reference to the drawings.

First, an embodiment of a lifesaving fire truck work bench having a water pipe coupling structure according to the present invention is mounted on a boom 7 of a fire engine 5 as shown in FIGS. In the life-saving fire truck work platform for providing a space, the fire work platform 10, the main frame 20, the body assembly 30, the horizontal holding unit 40 and the rotary drive unit 50, the water pipe assembly ( 60) and a water pipe joint 70 having a first water pipe joint 70a and a second water pipe joint 70b.

As shown in FIGS. 2 and 3, the fire fighting work platform 10 is a structure that forms a boarding space in which an operator can ride, and includes a boarding plate 11 and a handrail 15.

The boarding plate 11 forms a bottom surface having a predetermined area of the boarding space, and allows workers to support a predetermined weight according to the fire fighting platform.

The balustrade 15 has a predetermined height along the upper outer edge of the boarding plate 11 and is connected to each other and is formed to prevent the occupant from falling off the boarding plate 11.

The fire work platform 10 forms a hollow hole 12 vertically penetrated on the bottom surface, that is, the boarding plate 11. That is, the hollow hole 12 of the fire work platform 10 is hollow so that the water pipe assembly 60 can be disposed in the vertical direction.

The mainframe 20 is configured to be coupled to the front end of the boom 7 having a multi-stage retractable structure that can extend the length from the chassis of the fire truck (5).

The main frame 20 is formed in a square pipe tube shape, and formed to be coupled or separated to the boom 7 of the fire truck (5). That is, the main frame 20 is separated from the boom 7 to form a replaceable structure.

The main frame 20 is configured to be simply coupled to one end of the boom 7 or fixedly coupled with a separate bolt and nut.

One end of the main frame 20 forms a flange so that the body assembly 30 is mountable.

The body assembly 30 serves to operatively connect the fire fighting work platform 10 on the main frame 20.

2 and 3, the body assembly 30 is connected to one end of the main frame 20 and is formed to extend in front of the boom body 31, the lower portion of the fire work platform (10) Correspondingly installed on the boom body 31 is configured as a top body 33 to be coupled.

The horizontal assembly unit 40 is positioned inside the body assembly 30 to which the boom body 31 and the top body 33 are coupled to each other to secure a driving space.

The top body 33 is rotatably installed in one end of the boom body 31 in the vertical direction. That is, the top body 33 is rotatably connected by the first water pipe joint 70a of the water pipe joint 70 on the boom body 31, and is maintained in a horizontal state by the horizontal holding unit 40. Rotate as much as possible.

Since the upper end of the boom body 31 and the rear end of the top body 33 corresponding thereto form a contact preventing gap at regular intervals, the boom body 31 during the rotation of the top body 33. It is possible to prevent contact with and impact).

The top body 33 is provided with a support shaft 35 extending in the horizontal direction in the lower end portion, so that one end of the horizontal holding unit 40 is configured to be coupled.

The horizontal holding unit 40 forms a drive structure capable of extending movement forward and backward, and performs a function of maintaining the fire fighting work platform 10 in a horizontal state.

2 and 3, the horizontal holding unit 40 is rotatably installed at one end of the main frame 20 to extend toward the boom body 31, and the horizontal holding unit 40. One end of the 40, i.e., one end of the rod, is coupled to the support shaft 35 of the top body 33 to form an interconnected structure.

As shown in FIG. 4, the horizontal holding unit 40 is installed to correspond to one inner wall of the main frame 20. That is, as the water pipe assembly 60 is disposed in a limited space inside the body assembly 30, the horizontal holding unit 40 may secure an installation space of the water pipe assembly 60 in the body assembly 30. Is installed in a position adjacent to one wall surface of the main frame 20 is configured to be one-sided position in the body assembly 30.

The horizontal holding unit 40 drives the fire extinguishing platform 10 to be horizontally maintained automatically. That is, the horizontal holding unit 40 is installed on the driving cylinder 41 for driving the rod forward and backward and the horizontal, and is installed on the driving cylinder 41, the horizontal to detect the change in the slope according to the rotation of the driving cylinder 41 The sensing means 43 is configured.

The rotation driving unit 50 performs a function of rotating the fire fighting platform 10 on the body assembly 30.

3 and 4, the rotary drive unit 50 is installed between the fire fighting platform 10 and the top body 33 of the body assembly 30.

As shown in Figure 4 and 5, the rotary drive unit 50 is a structure that can apply power for the rotational driving of the fire fighting work platform 10, rotatably under the fire work platform 10 The ring gear 51 is provided, and the drive means 53 is located in correspondence with one side of the ring gear 51 and is engaged with the ring gear 51 so as to be driven to apply a rotational force.

Since the driving means 53 is hydraulically transmitted from the outside and linearly moves back and forth, and applies rotational force to the ring gear 51 engaged with the driving means 53, the driving means 10 rotates the fire fighting platform 10 in the forward or reverse direction. .

The body assembly 30 and the rotary drive unit 50 are driven to rotate while being supported on the fire fighting platform 10 corresponding to the lower part to increase the support efficiency of the fire fighting work platform 10 and the fire fighting work platform 10. It is possible to achieve infinite rotation at 360 ° because there is no restriction on the rotation driving range.

The water pipe assembly 60 has a structure capable of forming a water channel through which water can be supplied from the outside.

The water pipe assembly 60 is connected to the body assembly 30 to extend to the position of the fire work platform 10, but is formed by extending upward toward the hollow hole 12 of the fire work platform 10. That is, the water pipe assembly 60 is configured to spray the water supplied from the outside at the position of the fire station 10.

As shown in FIGS. 3 and 6, the water pipe assembly 60 supplies a cylinder pipe 61 to which water is initially supplied from the outside, and supplies water from the cylinder pipe 61 toward the body assembly 30. An external connection pipe 63, an internal water pipe 65 for guiding water supplied externally from the inside of the body assembly 30 in a vertical direction, and a final water spray on the fire fighting platform 10 It consists of a waterproof nozzle 69 is formed.

The cylinder pipe 61 is positioned to be parallel to one side of the main frame 20 at intervals.

As shown in FIG. 7, the cylinder pipe 61 has a telescopic structure which can extend its length similarly to the structure of the boom 7. That is, the cylinder pipe 61 forms a water supply path 62 through which water can move, but forms a variable length in the same manner as the length extension of the boom 7.

The external connection pipe 63 is located outside the body assembly 30 to form a supply path of the water pipe toward the body assembly 30, and from the cylinder pipe 61 toward the body assembly 30. Form a curved path to divert direction.

The external connection pipe 63 is connected to one end of the cylinder pipe 61, and the opposite side is one side of the first water pipe joint 70a of the water pipe joint 70 mounted on the body assembly 30. It is fixedly installed corresponding to (outer side).

The inner water pipe (65) is located on the opposite side of the outer connection pipe (63) with respect to the first water pipe joint (70a) of the water pipe joint (70), the inside of the body assembly (30) It is connected to the water pipe joint 70a.

The inner water pipe (65) is formed extending in the vertical direction toward the hollow hole 12 of the fire fighting platform 10 to guide the movement of water in the vertical direction.

The inner water pipe (65) is formed on the upper and lower portions of the water pipe joint (70) with respect to the second water pipe joint (70b), respectively, and the upper and lower ends of the inner water pipe (65), respectively, supply paths of water. It is provided with a curved elbow tube 67 for changing the direction.

The inner water pipe (65) is provided with a fixing plate (66) protruding outwardly and fixedly installed on the top body (33) of the body assembly (30).

As the fixing plate 66 is connected to the body assembly 30 while being formed at right angles on the inner water pipe 65, the fixing plate 66 stands in a vertical direction with respect to the inner water pipe 65. Supportable

The waterproof nozzle 69 is connected to the upper end of the inner water pipe (65) and is capable of spraying water to the outside, but is installed to enable the water spray toward the front on the basis of the fire work platform (10).

Although not shown in the drawings, one end of the waterproof nozzle 69 may be configured to be equipped with various types of nozzle tips. For example, the nozzle tip is configured by mounting an expandable nozzle tip having a nozzle hole that gradually widens outward with respect to the waterproof nozzle 69, or gradually narrows outward with respect to the waterproof nozzle 69. It is possible to attach and configure the concentrated jet nozzle tip in which the nozzle hole was formed.

As shown in FIG. 6, the water pipe joint 70 is installed on the body assembly 30 and serves to support and support the water pipe assembly 60.

The water pipe joint 70 is installed in the body assembly 30 to rotate the top body 33 and the fire fighting platform 10 by driving the horizontal holding unit 40 and the rotary driving unit 50. As a structure which can be supported, the 1st water pipe joint 70a and the 2nd water pipe joint 70b are comprised so that a position may be distinguished.

The first water pipe joint 70a is installed on the body assembly 30 so as to connect the water pipe assembly 60 in a lateral direction. That is, the first water pipe joint 70a maintains the inner water pipe 65 of the water pipe assembly 60 connected to the inside of the body assembly 30 in a floating state, and the top body of the body assembly 30 Connect so that rotation drive for 33) can be done smoothly.

The second water pipe joint 70b is connected to the top body 33 of the body assembly 30, and is installed to be capable of connecting the water pipe assembly 60 in the longitudinal direction. That is, the second water pipe joint 70b maintains the lower region of the inner water pipe 65 of the water pipe assembly 60 connected to the inside of the body assembly 30 in a floating state, and the fire fighting platform 10 The upper region of the inner water pipe (65) corresponding to) is connected to enable the rotation of the inner water pipe (65) without interference to the rotational driving of the fire fighting platform (10).

The water pipe joint 70 has the same structural configuration as the first water pipe joint 70a and the water pipe joint 70.

As shown in Figure 8, the water pipe joint 70, the water pipe joint 70 is connected to the water pipe assembly 60 at one end and the outer body 71 to form a binding hole 72 on the inside, The inner body 75 is fitted to the coupling sphere 72 of the outer body 71 and binds the water pipe assembly 60 to one end.

The outer body 71 and the inner binding body 75 is provided with a hollow passage 79 formed in communication with the water pipe assembly 60 to move the water.

The inner circumferential surface of the binding body 72 in the outer body 71 is formed with a support stepped projection protruding inwardly, and one support outer circumferential surface of the inner circumferential body 75 is recessed inward to support the support stepped 73. The engagement stage 76 is engaged.

The contact surface between the outer body 71 and the inner binding body 75 is provided with at least one bearing (B) for a smooth rotational movement of each other, so that the water inlet in the hollow passage 79 can be watertight The sealing member S is provided.

In other words, according to the life-saving fire truck work platform having a water pipe coupling structure according to the present invention configured as described above by installing a water pipe assembly having a water channel so that water can be supplied to the fire work platform while expanding the range of use according to the use of the fire truck It is possible to flexibly extinguish life as well as lifesaving work. Furthermore, since the water pipe joint is formed at the connection point of the water pipe assembly for driving the horizontal maintenance unit and the rotary drive unit of the fire fighting work platform, the horizontal work and the up and down rotation work of the fire fighting work are smooth, and the water pipe for the water supply is prevented from leaking. And it is possible to prevent breakage.

In addition, the present invention because the upper end of the fire truck is in contact with the lower part of the fire support, so that the support of the fire extinguishing workbench is very easy for the operator's work and ensures work stability, without limiting the rotational operation of the fire extinguishing workbench Infinite rotation can be achieved.

In the above, a preferred embodiment of a lifesaving fire truck work bench having a water pipe coupling structure according to the present invention has been described. However, the present invention is not limited thereto, and the present invention is not limited thereto and may be modified in various ways within the scope of the claims and the accompanying drawings. It is possible and this also belongs to the scope of the present invention.

5: fire truck 7: boom
10: fire station 11: boarding plate 12: hollow hole
15: handrail 20: mainframe 30: body assembly
31: boom body 33: top body 35: support shaft
40: horizontal holding unit 41: drive cylinder 43: horizontal sensing means
50: rotary drive unit 51: ring gear 53: drive means
60: water pipe assembly 61: cylinder pipe 63: external connection pipe
65: internal water pipe 66: fixed plate 67: elbow pipe
70: water pipe joint 70a: first water pipe joint 70b: second water pipe joint
71: outer body 72: binding holes 73: support step
75: internal binding body 76: binding stage 79: hollow furnace

Claims (6)

In the life-saving fire truck work platform that is mounted on the boom of the fire truck to provide a boarding space for the workers' rescue life,
A fire brigade having a handrail along an upper outer edge and forming a hollow hole vertically penetrating the bottom;
A main frame coupled to the boom end of the multi-stage retractable structure, the length of which is extended from the chassis of the fire truck;
A boom body connected to one end of the mainframe and extending forward, and a top body installed corresponding to a lower portion of the fire fighting platform and rotatably connected to the boom body in a vertical direction. Body assembly;
A horizontal maintenance unit installed inside the main frame and extending toward the boom body, one end of which is coupled to the top body to extend and drive the fire extinguisher horizontally;
A rotation driving unit disposed between the fire fighting work platform and the top body of the body assembly and applying power for rotation driving of the fire fighting work table;
A water pipe assembly connected to the body assembly to form a water channel through which water can be supplied from the outside, and extending upwardly toward the hollow hole of the fire fighting work bench;
A water pipe joint installed on the body assembly and supporting the water pipe assembly to rotatably support the top body and the fire fighting work table by driving the horizontal holding unit and the rotation driving unit.
The rotary drive unit includes a ring gear installed at the lower portion of the fire extinguishing platform, and drive means for driving to engage the ring gear to apply a rotational force,
The water pipe assembly may include a cylinder pipe formed parallel to one side of the main frame so as to extend in length, and installed on the water pipe joint so as to be located outside the body assembly and connect one end of the cylinder pipe. An external connection pipe for coupling, an internal water pipe connected to the water pipe joint at an inner side of the body assembly and extending in a vertical direction toward the hollow hole of the fire fighting work platform, and connected to an upper end of the internal water pipe, Water-proof nozzle for forming a sprayable water with a,
The inner water pipe further includes a fixing plate protruding outward and fixedly installed on the top body of the body assembly.
The water pipe joint includes an outer body that binds the water pipe assembly to one end and forms a binding hole therein, and an inner binding body that fits on the binding hole of the outer body and binds the water pipe assembly to one end. and,
The outer body and the inner binding body includes a hollow passage formed in communication with the water pipe assembly to move the water,
The contact surface between the outer body and the inner binding body has a water pipe coupling structure further comprising a bearing (B) for smooth rotational movement with each other and a sealing member (S) to achieve watertightness against the inflow of the hollow furnace. Lifesaving Fire Truck Work Platform.
delete delete delete delete The method according to claim 1,
The water pipe joint may include a first water pipe joint installed on the body assembly so as to be connected to the water pipe assembly in a lateral direction, and installed on the top body of the body assembly to connect the water pipe assembly in a longitudinal direction. Lifesaving fire truck work platform having a water pipe coupling structure comprising a second water pipe joint to be made.

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