Compacting device for a water hose laying fire truck and water hose laying fire truck

Abstract

The application discloses a pressing device for a water hose laying fire engine and the water hose laying fire engine, and the pressing device comprises a longitudinal moving mechanism, a transverse moving mechanism and a pressing mechanism. The longitudinal moving mechanism is arranged on the top of a water hose box of the water hose laying fire engine and is arranged along the length direction of the water hose box. The transverse moving mechanism is longitudinally movably arranged on the longitudinal moving mechanism. The pressing mechanism is transversely movably arranged on the transverse moving mechanism and comprises a support rod assembly and a pressing wheel assembly for pressing the water hose. The upper end of the support rod assembly is connected with the transverse moving mechanism, and the pressing wheel assembly is connected with the lower end of the support rod assembly. The pressing device has the advantages of simple structure, high pressing efficiency, and the like. The water hose compactness is increased by pressing the water hose conveyed in the water hose box, the laying length of the water hose in the water hose box is effectively increased, and the space utilization of the water hose box is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fire fighting vehicles, in particular to a pressing device for a water hose laying fire fighting vehicle and the water hose laying fire fighting vehicle. BACKGROUND

[0002] The water hose laying distance of the water hose laying vehicle is an important technical index, and the volume of the tank of the vehicle is limited by the standard of the vehicle, so storing more water hoses in the limited tank volume is the main means to improve this technical parameter. The current water hose laying in the water hose tank is shown in the laying schematic diagram, and the steps are as follows: (1) the water hose is collected and transmitted to the front part of the tank by the hose collecting machine; (2) the hose arranging mechanism located at the rear part travels along the longitudinal track to the front part to clamp the water hose and then drags it to the rear part of the water tank; (3) the hose arranging machine opens the clamp, and the water hose freely falls to the rear part of the water hose tank; the above actions are repeated until the water hose tank is full. The above laying method is low in efficiency, and the laid water hose is not easy to be flattened, so that the space utilization rate of the tank of the vehicle is also low. SUMMARY

[0003] The present application relates to the technical field of fire fighting vehicles, in particular to a pressing device for a water hose laying fire fighting vehicle and the water hose laying fire fighting vehicle.

[0004] In order to achieve the above-mentioned purpose, the first aspect of the present application provides a pressing device for a water hose laying fire fighting vehicle, which comprises:

[0005] A longitudinal moving mechanism is arranged on the top of the water hose tank of the water hose laying fire fighting vehicle and arranged along the length direction of the water hose tank;

[0006] A transverse moving mechanism is longitudinally movably arranged on the longitudinal moving mechanism;

[0007] A pressing mechanism is transversely movably arranged on the transverse moving mechanism and comprises a support rod assembly and a pressing wheel assembly for pressing the water hose, the upper end of the support rod assembly is connected with the transverse moving mechanism, and the pressing wheel assembly is connected with the lower end of the support rod assembly.

[0008] In the embodiment of the present application, the support rod assembly is a telescopic assembly, and the telescopic end of the telescopic assembly is connected with the pressing wheel assembly.

[0009] In the embodiment of the present application, the telescopic assembly comprises a plurality of telescopic joint arms arranged in sequence and a plurality of telescopic cylinders for relatively moving the adjacent two telescopic joint arms.

[0010] In the embodiment of the present application, the plurality of telescopic arms comprises a first telescopic arm, a second telescopic arm and a third telescopic arm, the first telescopic arm is connected with the transverse moving mechanism, part of the second telescopic arm extends into the interior of the first telescopic arm, and part of the third telescopic arm extends into the interior of the second telescopic arm; the plurality of telescopic cylinders comprises a first telescopic cylinder and a second telescopic cylinder, two ends of the first telescopic cylinder are respectively connected with the outer side walls of the first telescopic arm and the second telescopic arm, and two ends of the second telescopic cylinder are respectively connected with the inner side walls of the second telescopic arm and the third telescopic arm.

[0011] In the embodiment of the present application, the pressing wheel assembly further comprises a mounting seat arranged on the telescopic assembly and a pressing wheel rotatably arranged on the mounting seat.

[0012] In the embodiment of the present application, the lower end of each of the two vertical side walls of the mounting seat has an outwardly turned outward turning part.

[0013] In the embodiment of the present application, the pressing device further comprises a first probe arranged on the vertical side wall of the mounting seat and used for detecting the water hose.

[0014] In the embodiment of the present application, the pressing device further comprises a second probe arranged on the front side wall of the mounting seat and used for detecting the water hose joint.

[0015] In the embodiment of the present application, the pressing device further comprises a controller configured to:

[0016] determine that the longitudinal moving mechanism is at the front end or the rear end of the water hose box;

[0017] determine that the transverse moving mechanism is at the left side or the right side of the water hose box;

[0018] control the telescopic assembly to perform the elongation operation;

[0019] determine that the first probe detects the water hose;

[0020] control the telescopic assembly to stop performing the elongation operation;

[0021] control the longitudinal moving mechanism to perform the longitudinal moving operation to realize the longitudinal pressing of the water hose.

[0022] In the embodiment of the present application, the controller is further configured to:

[0023] during the process that the longitudinal moving mechanism performs the longitudinal moving operation, determine that the front side of the pressing wheel assembly has the water hose joint;

[0024] control the longitudinal moving mechanism to stop performing the longitudinal moving operation;

[0025] control the telescopic assembly to contract by a preset length;

[0026] controlling the longitudinal moving mechanism to continue moving in the previous direction by a preset distance;

[0027] controlling the telescopic assembly to perform the elongation operation;

[0028] determining that the first probe detects the water hose;

[0029] controlling the telescopic assembly to stop performing the elongation operation;

[0030] controlling the longitudinal moving mechanism to continue performing the longitudinal moving operation.

[0031] The second aspect of the present application provides a water hose laying fire engine, which comprises the compression device for the water hose laying fire engine.

[0032] By the above technical solution, the compression device comprises a longitudinal moving mechanism, a transverse moving mechanism and a compression mechanism, the longitudinal moving mechanism is arranged on the top of the water hose box of the water hose laying fire engine and arranged along the length direction of the water hose box; the transverse moving mechanism is longitudinally movably arranged on the longitudinal moving mechanism; under the joint action of the longitudinal moving mechanism and the transverse moving mechanism, the longitudinal and transverse movement of the compression mechanism on the horizontal plane is realized, so that the compression mechanism can reach any position point in the water hose box and compress the water hose. The compression device has simple structure, the water hose in the water hose box is compressed to increase the compactness of the water hose, thereby effectively increasing the laying length of the water hose in the water hose box, and the compression efficiency is high, and the space utilization rate of the water hose box is improved. BRIEF DESCRIPTION OF DRAWINGS

[0033] The accompanying drawings are included to provide a further understanding of embodiments of the application, and constitute a part of this specification, and together with the specific embodiments below, serve to explain embodiments of the application, but do not constitute a limitation on embodiments of the application. In the drawings:

[0034] Figure 1 is a structural schematic view of the compression device in the embodiment of the present application;

[0035] Figure 2 is a structural schematic view of the compression mechanism in the embodiment of the present application;

[0036] Figure 3 is a structural schematic view of the longitudinal moving mechanism in the embodiment of the present application;

[0037] Figure 4 is a structural schematic view of the transverse moving mechanism in the embodiment of the present application.

[0038] Explanation of reference signs

[0039] 1-longitudinal movement mechanism; 101-track transverse support rod; 102-longitudinal track plate; 103-first drive motor; 104-driving wheel; 105-longitudinal conveyor belt; 106-supporting roller; 107-tensioning wheel; 108-driven wheel; 109-drive shaft; 2-transverse movement mechanism; 201-carrying roller; 202-connecting side plate; 203-guide roller; 204-transverse track plate; 205-drive rack; 206-transverse Toward moving block; 207-driving gear; 208-second driving motor; 209-lateral moving guide rail; 3-pressing mechanism; 301-telescopic assembly; 3011-first telescopic arm; 3012-second telescopic arm; 3013-third telescopic arm; 3014-first telescopic cylinder; 302-pressure wheel assembly; 3021-mounting seat; 3022-pressure wheel; 3023-external part; 4-first probe; 5-second probe. DETAILED DESCRIPTION

[0040] The following describes the specific embodiments of the present invention in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0041] The embodiment of the present invention provides a novel clamping device for a hose laying fire truck, such as Figure 1 As shown, the clamping device includes a longitudinal moving mechanism 1, a transverse moving mechanism 2 and a clamping mechanism 3, wherein the longitudinal moving mechanism 1 is arranged on the top of the hose box of the hose laying fire truck and is arranged along the length direction of the hose box; the transverse moving mechanism 2 can be longitudinally movably arranged on the longitudinal moving mechanism 1; the clamping mechanism 3 can be transversely movably arranged on the transverse moving mechanism 2 and includes a support rod assembly and a clamping wheel assembly 302 for clamping the hose, the upper end of the support rod assembly is connected to the transverse moving mechanism 2, and the clamping wheel assembly 302 is connected to the lower end of the support rod assembly. Specifically, under the joint action of the longitudinal moving mechanism 1 and the transverse moving mechanism 2, the clamping mechanism 3 is able to move longitudinally and transversely on the horizontal plane, so that the clamping mechanism 3 can reach any position point in the hose box; then the clamping wheel assembly 302 is pressed onto the hose to be compressed by the support rod assembly, and then the longitudinal moving mechanism 1 is controlled to move longitudinally, that is, the longitudinal compression of the hose can be achieved. After the longitudinal moving mechanism 1 moves from one end of the hose box to the other end, the transverse moving mechanism 2 is controlled to move transversely, that is, the hoses at other transverse positions can be longitudinally compressed. The above-mentioned clamping device has a simple structure, and increases the density of the hose by compressing the hose transported in the hose box, thereby effectively increasing the laying length of the hose in the hose box, solving the problem that the existing hose laying vehicle has insufficient hose laying length due to the limitation of the hose box volume by the standard and the hoses are all loosely laid in the hose box. The clamping efficiency is high, which improves the space utilization rate of the hose box.

[0042] In one embodiment of the present application, the support rod assembly is a telescopic assembly 301, the pressing wheel assembly 302 is connected to the telescopic end of the telescopic assembly 301, and the telescopic assembly 301 is elongated to press the pressing wheel assembly 302 to the hose at different heights, thereby achieving the pressing of the hose at different heights. Further, the support rod assembly in the present embodiment can also be replaced by other structural forms, such as a fixed rod member, the upper end of which is detachably connected to the transverse moving mechanism; or a swing rod member, the upper end of which is rotatably connected to the transverse moving mechanism, and the pressing wheel assembly is pressed against the hose by swinging the swing rod member.

[0043] In one embodiment of the present application, the telescopic assembly 301 includes a plurality of telescopic arms arranged in sequence and a plurality of telescopic cylinders for moving the adjacent two telescopic arms relative to each other, and the plurality of telescopic cylinders perform the telescopic function, i.e., the elongation or shortening of the plurality of telescopic arms as a whole.

[0044] In one embodiment of the present application, as shown in Figure 2 the plurality of telescopic arms include a first telescopic arm 3011, a second telescopic arm 3012, and a third telescopic arm 3013, the first telescopic arm 3011 is connected to the transverse moving mechanism 2, part of the second telescopic arm 3012 extends into the interior of the first telescopic arm 3011, and part of the third telescopic arm 3013 extends into the interior of the second telescopic arm 3012, the plurality of telescopic cylinders include a first telescopic cylinder 3014 and a second telescopic cylinder (not shown in the figure), the two ends of the first telescopic cylinder 3014 are respectively connected to the outer side walls of the first telescopic arm 3011 and the second telescopic arm 3012, specifically, the first telescopic arm 3011, the second telescopic arm 3012, and the third telescopic arm 3013 are all hollow structures, the upper end of the first telescopic cylinder 3014 is connected to the middle height position of the outer side wall of the first telescopic arm 3011 by a first support pin, and the lower end of the first telescopic cylinder 3014 is connected to the lower end of the outer side wall of the first telescopic arm 3011 by a second support pin; the two ends of the second telescopic cylinder are respectively connected to the inner side walls of the second telescopic arm 3012 and the third telescopic arm 3013 through a third support pin (not shown in the figure) and a fourth support pin (not shown in the figure). The above arrangement is conducive to reducing the overall volume of the telescopic assembly 301 and avoiding affecting the contraction function of the second telescopic arm 3012. Further, the number of telescopic arms in the present embodiment is not limited to three, but can also be two or four or other numbers; and the telescopic cylinder in the present embodiment can also be replaced by a hydraulic cylinder.

[0045] In an embodiment of the present application, the compression roller assembly 302 further comprises a mounting base 3021 arranged on the telescopic assembly 301 and a compression roller 3022 rotatably arranged on the mounting base 3021, the compression roller 3022 rolls and longitudinally compresses the water hose under the driving of the longitudinal moving mechanism 1. Further, the compression roller 3022 in the present embodiment can also be replaced by an arc-shaped compression plate.

[0046] In an embodiment of the present application, the lower end of each vertical side wall of the mounting base 3021 is provided with an outwardly turned outwardly turned portion 3023, the arrangement of which can make the compression roller 3022 push the water hose deviated from the preset path onto the preset path during the longitudinal movement, which is beneficial to improve the neatness of the water hose laying.

[0047] In an embodiment of the present application, the compression device further comprises a first probe 4 arranged on the vertical side wall of the mounting base 3021 and used for detecting the water hose, specifically, the first probe 4 in the present embodiment is a distance detection sensor, when it detects that the distance between itself and the water hose is not more than a preset value, it indicates that the compression roller 3022 has been compressed on the water hose; when it detects that the distance between itself and the water hose is greater than the preset value, it indicates that the compression roller 3022 has not been compressed on the water hose.

[0048] In an embodiment of the present application, the compression device further comprises a second probe 5 arranged on the front side wall of the mounting base 3021 and used for detecting the water hose joint, specifically, the second probe 5 in the present embodiment is an obstacle detection sensor, when it detects an obstacle, it indicates that there is a water hose joint in the moving direction of the compression roller 3022; when it does not detect an obstacle, it indicates that there is no water hose joint in the moving direction of the compression roller 3022.

[0049] In an embodiment of the present application, as shown in Figure 3As shown, the longitudinal moving mechanism 1 comprises a first longitudinal moving assembly and a second longitudinal moving assembly respectively installed on the left and right sides of the top of the water tank, and the first longitudinal moving assembly and the second longitudinal moving assembly are connected together through the track transverse support rod 101. The first longitudinal moving assembly and the second longitudinal moving assembly each comprise a longitudinal track plate 102, a first driving motor 103, a driving wheel 104, a longitudinal conveying belt 105, a supporting wheel 106, a tensioning wheel 107 and a transmission shaft 109. The longitudinal track plate 102 is installed on the inner side wall of the water tank, the first driving motor 103 is installed on the longitudinal track plate 102, the driving wheel 104 is installed on the output end of the first driving motor 103, the longitudinal conveying belt 105 is installed on the driving wheel 104 and a driven wheel 108, the supporting wheel 106 and the tensioning wheel 107 are installed on the longitudinal track plate 102, the driven wheel 108 is installed on the end of the longitudinal track plate 102 away from the driving wheel 104, and the transmission shaft 109 is connected with the driven wheels 108 of the first longitudinal moving assembly and the second longitudinal moving assembly at both ends thereof for synchronizing the speeds of the two driven wheels 108. The longitudinal moving mechanism 1 is powered by the first driving motor 103, and the forward or reverse movement of the transmission belt driven by the forward or reverse rotation of the first driving motor 103 drives the transverse moving mechanism 2 installed on the transmission belt and the water hose pressing mechanism 3 connected with the transverse moving mechanism 2 to move reciprocatingly in the longitudinal direction.

[0050] In an embodiment of the present application, as shown in Figure 4 The transverse moving mechanism 2 comprises a bearing roller 201, two connecting side plates 202, a guide roller 203, a transverse track plate 204, a transmission rack 205, a transverse moving block 206, a driving gear 207, a second driving motor 208 and a transverse moving guide rail 209. The two connecting side plates 202 are connected with the transmission belts of the first longitudinal moving assembly and the second longitudinal moving assembly respectively, and the transmission belts can drive the transverse moving mechanism 2 to move longitudinally when moving. The two ends of the transverse track plate 204 are connected with the two connecting side plates 202 respectively, the bearing roller 201 is installed on the lower end of the connecting side plate 202, the guide roller 203 is arranged on the upper end of the connecting side plate 202, the second driving motor 208 is installed and fixed on the transverse moving block 206, and the driving gear 207 on the output end of the second driving motor 208 is engaged with the transmission rack 205 installed and fixed on the transverse track plate 204 to drive the transverse moving block 206 to move along the length direction of the transverse moving guide rail 209, so that the pressing mechanism 3 connected with the transverse moving block 206 is transversely moved.

[0051] In an embodiment of the present application, the pressing device further comprises a controller configured to perform the following operation steps:

[0052] Step S101: determining whether the longitudinal moving mechanism 1 is at the front end or the rear end of the water tank;

[0053] Step S102: determining whether the lateral moving mechanism 2 is at the left side or the right side of the water hose box;

[0054] Step S103: controlling the telescopic assembly 301 to perform the elongation operation;

[0055] Step S104: determining whether the first probe 4 detects the water hose;

[0056] Step S105: controlling the telescopic assembly 301 to stop performing the elongation operation;

[0057] Step S106: controlling the longitudinal moving mechanism 1 to perform the longitudinal moving operation to realize the longitudinal compression of the water hose.

[0058] Specifically, the controller and the longitudinal moving mechanism 1, the lateral moving mechanism 2, the telescopic assembly 301 and the first probe 4 are in communication connection, before the compression of the water hose, the longitudinal moving mechanism 1 and the lateral moving mechanism 2 cooperate with each other to make the compression mechanism 3 move to an initial position where the water hose is to be compressed, which is an angular position of the water hose box on the horizontal plane in the embodiment, then the telescopic assembly 301 is controlled to perform the elongation operation until the first probe 4 detects the water hose, which indicates that the compression wheel 3022 is compressed on the water hose, and finally the longitudinal moving mechanism 1 is controlled to perform the longitudinal moving operation to realize the longitudinal compression of the water hose.

[0059] In an embodiment of the present application, the controller is further configured to perform the following operation steps:

[0060] Step S201: determining whether there is a water hose joint on the front side of the compression wheel assembly 302 during the longitudinal moving operation of the longitudinal moving mechanism 1;

[0061] Step S202: controlling the longitudinal moving mechanism 1 to stop performing the longitudinal moving operation;

[0062] Step S203: controlling the telescopic assembly 301 to contract by a preset length;

[0063] Step S204: controlling the longitudinal moving mechanism 1 to continue moving by a preset distance in the previous direction;

[0064] Step S205: controlling the telescopic assembly 301 to perform the elongation operation;

[0065] Step S206: determining whether the first probe 4 detects the water hose;

[0066] Step S207: controlling the telescopic assembly 301 to stop performing the elongation operation;

[0067] Step S208: controlling the longitudinal moving mechanism 1 to continue performing the longitudinal moving operation.

[0068] Specifically, the second probe 5 is in communication connection with the controller, and in the embodiment, the second probe 5 is used to detect whether there is a hose coupling in the moving direction of the roller assembly 302, and then sends the detection result to the controller. When the controller determines that there is a hose coupling in the front side of the roller assembly 302, the controller controls the longitudinal moving mechanism 1 and the telescopic assembly 301 to jointly cooperate to make the roller assembly 302 cross the hose coupling. After the roller assembly 302 crosses the hose coupling, the longitudinal moving mechanism 1 continues to perform the longitudinal moving operation to continue to longitudinally compact the hose.

[0069] Another embodiment of the present application provides a novel hose-laying fire engine, which comprises the hose-laying fire engine compacting device of the above-mentioned embodiment.

[0070] The preferred embodiments of the present application are described in detail above with reference to the drawings, but the present application is not limited thereto. Within the technical concept of the present application, various simple modifications can be made to the technical solutions of the present application, including the combination of various specific technical features in any suitable manner. In order to avoid unnecessary repetition, the present application does not further describe various possible combination manners. However, these simple modifications and combinations should also be regarded as the disclosed content of the present application and belong to the protection scope of the present application.

[0071] In the present application, unless otherwise explicitly specified and limited, the terms “mounting”, “connection”, “connecting”, “fixing” and the like should be understood in a broad sense. For example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection, or communication with each other; it can be direct connection, or indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0072] In the present application, unless otherwise explicitly specified and limited, the first feature is “on” or “under” the second feature. It can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature can be above or obliquely above the second feature, or it can only mean that the horizontal height of the first feature is higher than that of the second feature. The first feature can be below or obliquely below the second feature, or it can only mean that the horizontal height of the first feature is less than that of the second feature.

[0073] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and that changes, modifications, substitutions and variations can be made by those skilled in the art without departing from the scope of the present application.

Claims

1. A take-up device for a hose-laying fire tender, characterized in that The compacting device comprises: a longitudinal moving mechanism (1) arranged on the top of a hose box of a hose laying fire engine and along the length direction of the hose box; a transverse moving mechanism (2) longitudinally movably arranged on the longitudinal moving mechanism (1); a compacting mechanism (3) transversely movably arranged on the transverse moving mechanism (2) and comprising a support rod assembly and a compacting wheel assembly (302) for compacting the hose, the upper end of the support rod assembly is connected with the transverse moving mechanism (2), the compacting wheel assembly (302) is connected with the lower end of the support rod assembly, the support rod assembly is a telescopic assembly (301), the compacting wheel assembly (302) is connected with the telescopic end of the telescopic assembly (301); a first probe (4) arranged on the vertical side wall of a mounting base (3021) of the telescopic assembly (301) and used for detecting the hose; a controller configured to: determine that the longitudinal moving mechanism (1) is at the front end or the rear end of the hose box; determine that the transverse moving mechanism (2) is at the left side or the right side of the hose box; control the telescopic assembly (301) to perform an elongation operation; determine that the first probe (4) detects the hose; control the telescopic assembly (301) to stop performing the elongation operation; control the longitudinal moving mechanism (1) to perform a longitudinal moving operation to realize the longitudinal compacting of the hose.

2. A take-up device for a hose-laying fire tender according to claim 1, characterized in that The telescopic assembly (301) comprises a plurality of telescopic joint arms arranged in sequence and a plurality of telescopic cylinders for relatively moving adjacent two telescopic joint arms.

3. A roll-down device for a hose-laying fire tender according to claim 2, characterised in that The plurality of telescopic joint arms comprises a first telescopic joint arm (3011), a second telescopic joint arm (3012) and a third telescopic joint arm (3013), the first telescopic joint arm (3011) is connected with the transverse moving mechanism (2), part of the second telescopic joint arm (3012) extends into the interior of the first telescopic joint arm (3011), part of the third telescopic joint arm (3013) extends into the interior of the second telescopic joint arm (3012), and the plurality of telescopic cylinders comprises a first telescopic cylinder (3014) and a second telescopic cylinder, both ends of the first telescopic cylinder (3014) are respectively connected with the first telescopic joint arm (3011) and the outer side wall of the second telescopic joint arm (3012), and both ends of the second telescopic cylinder are respectively connected with the inner side wall of the second telescopic joint arm (3012) and the third telescopic joint arm (3013).

4. The roll down device for a hose-laying apparatus according to claim 1, wherein The compacting wheel assembly (302) further comprises a mounting base (3021) arranged on the telescopic assembly (301) and a compacting wheel (3022) rotatably mounted on the mounting base (3021).

5. A roll-down device for a hose-laying apparatus according to claim 4, characterized in that The lower end of each vertical side wall of the mounting base (3021) has an outward turning portion (3023) turned outward.

6. A roll-down device for a hose-laying apparatus according to claim 5, characterized in that The compacting device further comprises a second probe (5) arranged on the front side wall of the mounting base (3021) and used for detecting a hose joint.

7. A roll-down device for a hose-laying fire tender as claimed in claim 6, characterised in that, The controller is further configured to: In the process that the longitudinal moving mechanism (1) performs the longitudinal moving operation, it is determined that the front side of the compression wheel assembly (302) has the water hose joint; The longitudinal moving mechanism (1) is controlled to stop performing the longitudinal moving operation; The telescopic assembly (301) is controlled to contract by a preset length; The longitudinal moving mechanism (1) is controlled to continue moving by a preset distance in the previous direction; The telescopic assembly (301) is controlled to perform the elongation operation; It is determined that the first probe (4) detects the water hose; The telescopic assembly (301) is controlled to stop performing the elongation operation; The longitudinal moving mechanism (1) is controlled to continue performing the longitudinal moving operation.

8. A hose-laying fire apparatus characterized by, The water hose laying fire engine comprises the compression device for the water hose laying fire engine according to any one of claims 1-7.

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