Fire hose clamping mechanism, hose retracting mechanism and fire fighting vehicle

Abstract

The purpose of the present invention is to disclose a fire hose entraining mechanism, a hose collecting mechanism and a fire truck, comprising a first fixed plate, a second fixed plate, and a cylinder assembly and a connecting rod assembly arranged between the first fixed plate and the second fixed plate; the cylinder assembly comprises a cylinder and a telescopic rod, and the first arc rod and the second arc rod are respectively arranged on both sides of the connecting rod assembly, and the cylinder drives the first pressure roller and the second pressure roller to fold or open synchronously through the first arc rod and the second arc rod of the connecting rod assembly; a bottom roller is arranged between the first arc rod and the second arc rod, and the technical effect is: a single cylinder drives the connecting rod assembly, and the first arc rod and the second arc rod of the connecting rod assembly synchronously drive the first pressure roller and the second pressure roller to fold or open, so that the clamping force on both sides of the water hose remains equal, and during the reciprocating motion of the entraining mechanism, there will be no inconsistent tightness on both sides of the water hose, which ensures that the water hose does not fall off and the water hose is laid flat at the same time.

Description

Technical Field

[0001] The invention relates to the technical field of fire fighting equipment, in particular to a fire hose entraining mechanism, a hose collecting mechanism and a fire fighting vehicle. Background Art

[0002] The purpose of the automatic belt-retracting mechanism of a fire truck is to automatically transport the hose to the hose storage space of the fire truck, including the process of transporting the hose and placing the hose back and forth. In the process of placing the hose back and forth, the entraining mechanism needs to reciprocate while clamping the hose to achieve the goal of stacking the hose in a bent state in the hose storage space. At present, the entraining mechanism clamps the hose by a bottom roller and two swinging pressure rollers to respectively clamp the two sides of the hose, and the hose is stacked in the hose storage space through the reciprocating motion of the entraining mechanism. The defect of the two swinging pressure rollers is that the synchronization of the two pressure rollers is insufficient, which easily leads to different degrees of compression on both sides of the hose, and one side cannot be compressed normally, causing the hose to fall or the hose cannot be laid flat.

[0003] In view of this, it is necessary to develop a fire hose entraining mechanism, a belt taking-up mechanism and a fire fighting vehicle to overcome the defects of the prior art. Summary of the invention

[0004] In order to solve the above technical problems, the purpose of the present invention is to disclose a fire hose clamping mechanism, a hose collecting mechanism and a fire truck. A single cylinder drives a connecting rod assembly, and the connecting rod assembly synchronously drives the first pressure roller and the second pressure roller to fold or open, so that the clamping force on both sides of the hose remains equal, thereby ensuring that the hose is laid flat.

[0005] The first object of the present invention is to provide a fire hose entrainment mechanism.

[0006] A second object of the present invention is to provide a fire hose take-up mechanism.

[0007] A third object of the present invention is to provide a fire fighting vehicle.

[0008] To achieve the above first invention objective, the present invention provides a fire hose clamping mechanism, comprising a first fixing plate, a second fixing plate, and a cylinder assembly and a connecting rod assembly disposed between the first fixing plate and the second fixing plate;

[0009] The cylinder assembly includes a cylinder and a telescopic rod, and a first arc rod and a second arc rod are respectively provided on both sides of the connecting rod assembly. The cylinder drives the first pressing roller and the second pressing roller to fold or open synchronously through the first arc rod and the second arc rod of the connecting rod assembly.

[0010] A bottom roller is arranged between the first arc-shaped rod and the second arc-shaped rod.

[0011] Preferably, the connecting rod assembly further comprises a first rotation center, a second rotation center, a third rotation center, a fourth rotation center, a herringbone connecting rod, a V-shaped connecting rod, a linkage rod, a first push rod and a second push rod;

[0012] The herringbone connecting rod includes a first hinge point, a second hinge point and a third hinge point;

[0013] The telescopic rod drives the first hinge point, the herringbone connecting rod rotates around the first rotation center, the second hinge point is hinged to the first end of the first push rod, the three hinge points are hinged to the first end of the linkage rod, the second end of the first push rod is hinged to the first end of the first arc rod, the second end of the first arc rod is provided with a first pressure roller, and the first arc rod rotates around the second rotation center;

[0014] The V-shaped connecting rod includes a fourth hinge point and a fifth hinge point, and the V-shaped connecting rod rotates around the third rotation center. The second end of the linkage rod is hinged to the fourth hinge point, and the fifth hinge point is hinged to the first end of the second push rod. The second end of the second push rod is hinged to the first end of the second arc rod, and a second pressure roller is provided at the second end of the second arc rod. The second arc rod rotates around the fourth rotation center.

[0015] Preferably, it further comprises a first frame and a second frame, wherein the first frame surrounds the second rotation center, and the second frame surrounds the fourth rotation center;

[0016] The first frame is fixed between the first fixing plate and the second fixing plate, and the second frame is fixed between the first fixing plate and the second fixing plate.

[0017] Preferably, the first frame is provided with a first notch, and the first arc-shaped rod passes through the first notch;

[0018] The second frame is provided with a second notch, and the second arc-shaped rod passes through the second notch.

[0019] Preferably, the bottom roller is fixed between the first frame and the second frame.

[0020] Preferably, a travel switch is provided on one side of the water hose entrainment mechanism.

[0021] Preferably, guide wheels are respectively provided on both sides of the water hose entrainment mechanism.

[0022] Based on the same inventive principle, in order to achieve the above-mentioned second inventive object, the present invention provides a fire hose take-up mechanism, comprising a hose storage space and a hose conveying portion arranged above the hose storage space, a first guide rail beam and a second guide rail beam are arranged on both sides of the hose conveying portion, a first movable track and a second movable track are arranged on the top of the hose storage space, two ends of the first guide rail beam are respectively movably arranged above the first movable track and the second movable track, and two ends of the second guide rail beam are respectively movably arranged above the first movable track and the second movable track;

[0023] The fire hose entraining mechanism described in the first invention reciprocates along the first guide rail beam and the second guide rail beam.

[0024] Preferably, it further comprises a moving driving assembly, wherein the driving assembly is characterized in that the driving assembly drives the first guide rail beam and the second guide rail beam to move along the first moving rail and the second moving rail;

[0025] The water hose storage space is provided with a plurality of water hose isolation areas;

[0026] A first limit position and a second limit position are set on the side of the first guide rail beam.

[0027] Based on the same inventive principle, in order to achieve the above-mentioned third invention purpose, the present invention provides a fire-fighting vehicle, including a vehicle body and the fire hose retracting mechanism described in the second invention creation arranged on the top of the vehicle body.

[0028] Compared with the prior art, the technical effects of the present invention are as follows:

[0029] A single cylinder drives the connecting rod assembly, and the first arc rod and the second arc rod of the connecting rod assembly synchronously drive the first pressure roller and the second pressure roller to fold or open, so that the clamping force on both sides of the water hose remains equal. When the first pressure roller and the second pressure roller are folded synchronously, the first pressure roller and the second pressure roller respectively press the two sides of the water hose to the surface of the bottom roller with the same pressure. During the reciprocating motion of the entraining mechanism, there will be no inconsistent tightness on both sides of the water hose, which ensures that the water hose does not fall off and at the same time ensures that the water hose is laid flat. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 It is a three-dimensional structural diagram of the belt taking-up mechanism of the present invention.

[0032] Figure 2 It is a three-dimensional structural diagram of the entrainment mechanism of the present invention.

[0033] Figure 3 It is a schematic diagram of the first pressing roller and the second pressing roller of the entraining mechanism of the present invention in the open state.

[0034] Figure 4 It is a schematic diagram of the folded state of the first pressing roller and the second pressing roller of the entraining mechanism of the present invention.

[0035] Figure 5 It is a three-dimensional structural diagram of the entrainment mechanism of the present invention.

[0036] Figure 6 It is a three-dimensional structural diagram of the entrainment mechanism of the present invention.

[0037] Figure 7 It is a side view of the stacked state of the water hose of the present invention.

[0038] Among them, 1. first fixed plate; 11. first frame; 111. first notch; 12. second frame; 121. second notch; 2. second fixed plate; 3. cylinder assembly; 31. cylinder; 32. telescopic rod; 4. connecting rod assembly; 41. first arc rod; 411. first end of first arc rod; 412. second end of first arc rod; 42. second arc rod; 421. first end of second arc rod; 422. second end of second arc rod; 43. first rotation center; 44. second rotation center; 45. third rotation center; 46. fourth rotation center; 47. herringbone connecting rod; 471. first hinge point; 472. second hinge point; 473. third hinge point; 48. V-shaped connecting rod; 4 81. Fourth hinge point; 482. Fifth hinge point; 49. Linking rod; 491. First end of the linking rod; 492. Second end of the linking rod; 50. First push rod; 501. First end of the first push rod; 502. Second end of the first push rod; 51. Second push rod; 511. First end of the second push rod; 512. Second end of the second push rod; 5. First pressure roller; 6. Second pressure roller; 7. Bottom roller; 8. Travel switch; 9. Guide wheel; 10. Water hose storage space; 101. First moving track; 102. Second moving track; 103. Water hose isolation area; 13. Water hose conveying part; 131. First guide rail beam; 132. Second guide rail beam; 14. Mobile drive assembly; 15. Water hose; 151. Slope. Implementation

[0039] The present invention is described in detail below in conjunction with the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods, or structures made by ordinary technicians in the field based on these embodiments are all within the scope of protection of the present invention.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships 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, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention. Example 1

[0041] Ginseng Figures 1 to 6 As shown, this embodiment discloses a specific implementation of a fire hose entrainment mechanism.

[0042] The present embodiment provides a fire hose entrainment mechanism, comprising a first fixed plate 1, a second fixed plate 2, and a cylinder assembly 3 and a connecting rod assembly 4 arranged between the first fixed plate 1 and the second fixed plate 2; the cylinder assembly 3 comprises a cylinder 31 and a telescopic rod 32, and a first arc rod 41 and a second arc rod 42 are respectively arranged on both sides of the connecting rod assembly 4, and the cylinder 31 synchronously drives the first pressure roller 5 and the second pressure roller 6 to fold or open through the first arc rod 41 and the second arc rod 42 of the connecting rod assembly 4; a bottom roller 7 is arranged between the first arc rod 41 and the second arc rod 42.

[0043] Specifically, in this embodiment, the connecting rod assembly 4 is driven by a single cylinder (cylinder 31), and the first arc rod 41 and the second arc rod 42 of the connecting rod assembly 4 synchronously drive the first pressure roller 5 and the second pressure roller 6 to fold or open, so that the clamping force on both sides of the water hose remains equal. When the first pressure roller 5 and the second pressure roller 6 are synchronously folded, the first pressure roller 5 and the second pressure roller 6 respectively press the two sides of the water hose to the surface of the bottom roller 7 with the same pressure. During the reciprocating motion of the entraining mechanism, there will be no inconsistent tightness on both sides of the water hose, which ensures that the water hose does not fall off and at the same time ensures that the water hose is laid flat.

[0044] See also Figures 2 to 6The working principle of the connecting rod assembly 4 is as follows: the connecting rod assembly 4 also includes a first rotation center 43, a second rotation center 44, a third rotation center 45, a fourth rotation center 46, a herringbone connecting rod 47, a V-shaped connecting rod 48, a linkage rod 49, a first push rod 50 and a second push rod 51; the herringbone connecting rod 47 includes a first hinge point 471, a second hinge point 472 and a third hinge point 473; the telescopic rod 32 drives the first hinge point 471, the herringbone connecting rod 47 rotates around the first rotation center 43, the second hinge point 472 is hinged to the first end 501 of the first push rod, the three hinge points 473 are hinged to the first end 491 of the linkage rod, the second end 502 of the first push rod and the The first end 411 of the first arc rod is hinged, and the second end 412 of the first arc rod is provided with a first pressure roller 5. The first arc rod 41 rotates around the second rotation center 44 as the center; the V-shaped connecting rod 48 includes a fourth hinge point 481 and a fifth hinge point 482, and the V-shaped connecting rod 48 rotates around the third rotation center 45 as the center, the second end 492 of the linkage rod is hinged to the fourth hinge point 481, and the fifth hinge point 482 is hinged to the first end 511 of the second push rod, and the second end 512 of the second push rod is hinged to the first end 421 of the second arc rod, and the second end 422 of the second arc rod is provided with a second pressure roller 6, and the second arc rod 42 rotates around the fourth rotation center 46 as the center.

[0045] Specifically, Figure 3 The first pressing roller 5 and the second pressing roller 6 are in the open state. Figure 4 The first pressing roller 5 and the second pressing roller 6 are in a folded state. The specific folding process is as follows: the cylinder 31 is started and the telescopic rod 32 is driven to extend. The telescopic rod 32 drives the herringbone connecting rod 47 to rotate around the first rotation center 43 through the first hinge point 471, wherein the rotation of the second hinge point 472 drives the first push rod 50 to move, and the first push rod 50 drives the first arc rod 41 to swing around the second rotation center 44 as a circle, thereby driving the first pressing roller 5 to fold and press against one side of the bottom roller 7; synchronously, the rotation of the third hinge point 473 drives the linkage rod 49 to move, and the linkage rod 49 drives the V-shaped connecting rod 48 Rotating around the third rotation center 45, the V-shaped connecting rod 48 drives the second push rod 51 to move through the fifth hinge point 482, and the second push rod 51 drives the second arc rod 42 to swing around the fourth rotation center 46 as the center point, thereby driving the second pressure roller 6 to fold and press against the other side of the bottom roller 7, and the first pressure roller 5 and the second pressure roller 6 are folded synchronously, and the first pressure roller 5 and the second pressure roller 6 respectively press the two sides of the water hose against the surface of the bottom roller 7 with the same pressure, and during the reciprocating motion of the entraining mechanism, there will be no inconsistent tightness on both sides of the water hose, which ensures that the water hose does not fall off and is laid flat at the same time.

[0046] See also Figure 3 and Figure 5 The entrainment mechanism also includes a first frame 11 and a second frame 12, the first frame 11 surrounds the second rotation center 44, and the second frame 12 surrounds the fourth rotation center 46; the first frame 11 is fixed between the first fixed plate 1 and the second fixed plate 2, and the second frame 12 is fixed between the first fixed plate 1 and the second fixed plate 2; the first frame 11 is provided with a first notch 111, and the first arc rod 41 passes through the first notch 111; the second frame 12 is provided with a second notch 121, and the second arc rod 42 passes through the second notch 121, and the bottom roller 7 is fixed between the first frame 11 and the second frame 12; the first frame 11 and the second frame 12 are both supported between the first fixed plate 1 and the second fixed plate 2, and in order to facilitate the folding or opening of the first pressure roller 41 and the second pressure roller 42, the first frame 11 and the second frame 12 are respectively provided with a first notch 111 and a second notch 121, the first arc rod 41 swings within the range of the first notch 111, and the second arc rod 42 swings within the range of the second notch 121.

[0047] As a preferred embodiment, a travel switch 8 is set on one side of the water hose entrainment mechanism. The function of the travel switch 8 is to determine the travel range of the entrainment mechanism. Guide wheels 9 are respectively set on both sides of the water hose entrainment mechanism. The function of the guide wheels 9 is to facilitate the movement of the entrainment mechanism. Example 2

[0048] Ginseng Figures 1 to 6 As shown, this embodiment discloses a specific implementation of a fire hose take-up mechanism.

[0049] Fire hose retracting mechanism, reference Figures 1 to 6 As shown, it includes a water hose storage space 10 and a water hose conveying part 13 arranged above the water hose storage space 10, a first guide beam 131 and a second guide beam 132 are arranged on both sides of the water hose conveying part 13, a first movable rail 101 and a second movable rail 102 are arranged on the top of the water hose storage space 10, two ends of the first guide beam 131 are respectively movably arranged above the first movable rail 101 and the second movable rail 102, and two ends of the second guide beam 132 are respectively movably arranged above the first movable rail 101 and the second movable rail 102; the fire hose entrainment mechanism described in Example 1 reciprocates along the first guide beam 131 and the second guide beam 132; the water hose storage space 10 is provided with a plurality of water hose isolation areas 103.

[0050] Specifically, see Figure 1The guide wheels 9 on both sides of the entrainment mechanism move along the first guide beam 131 and the second guide beam 132 respectively. The specific method is to respectively set a drag chain on the first guide beam 131 and the second guide beam 132, and drive the entrainment mechanism to reciprocate along the first guide beam 131 and the second guide beam 132 through the drag chain; in order to limit the travel range of the entrainment mechanism, a first limit and a second limit are set on the side of the first guide beam 131, the first limit is close to one end of the water hose isolation area, and the second limit is close to the other end of the water hose isolation area.

[0051] The process of placing the water hose in the water hose storage space 10 is as follows: the first step is that the water hose conveying unit 13 conveys the water hose to the edge of the water hose storage space 10 and then bends and droops under the action of gravity; the second step is that the entraining mechanism described in Example 1 moves along the first guide beam 131 and the second guide beam 132 to the side of the bent water hose, and the cylinder 31 is started to clamp the two sides of the water hose synchronously; the third step is that the entraining mechanism moves along the first guide beam 131 and the second guide beam 132 to the vicinity of the second moving rail 102, that is, the entraining mechanism clamps the water hose and moves to the vicinity of the second moving rail 102, and then releases the water hose; the fourth step is that while the water hose is continuously conveyed in the first step, the entraining mechanism reciprocates according to the second and third steps to stack the water hose in the water hose isolation area 103. When the water hoses in a water hose isolation area are fully stacked, start the mobile drive component 14 and drive the first guide rail beam 131 and the second guide rail beam 132 to move along the first moving track 101 and the second moving track 102 to the next water hose isolation area, and the entraining mechanism reciprocates according to the second step and the third step to stack the water hoses in the next water hose isolation area 103 until the belt collection is completed.

[0052] It should be further explained that in order to make the entrainment mechanism more convenient to entrain, see Figure 1 and Figure 7 There is an angle between the first pressure roller 41 and the first guide beam 131, and the angle is 20°-45°. There is an angle between the second pressure roller 42 and the second guide beam 132, and the angle is also 20°-45°. The existence of this angle can, on the one hand, lower the position of the entrainment mechanism when clamping the water hose 15, and on the other hand, can enable the first pressure roller 41 and the second pressure roller 42 to directly act on the slope 151 of the water hose 15 during the stacking process, so as to clamp the water hose 15 more directly. Example 3

[0053] This embodiment provides a fire truck, comprising a vehicle body and the fire hose take-up mechanism of Embodiment 2 arranged on the top of the vehicle body. Specifically, the fire hose take-up mechanism is placed on the top of the vehicle roof, and the front end of the water hose conveying part 13 of the fire hose take-up mechanism is arranged on the top of the vehicle head. When taking up the fire hose, the fire hose is fed into the water hose conveying part 13 through the front end of the vehicle head, so as to realize automatic taking up.

[0054] The fire truck disclosed in this embodiment has the same technical solution as that in Embodiment 2. Please refer to Embodiment 2 for details, which will not be repeated here.

Claims

1. Fire hose entrainment mechanism, characterized in that: It includes a first fixing plate, a second fixing plate, and a cylinder assembly and a connecting rod assembly arranged between the first fixing plate and the second fixing plate; The cylinder assembly includes a cylinder and a telescopic rod, and a first arc rod and a second arc rod are respectively provided on both sides of the connecting rod assembly. The cylinder drives the first pressing roller and the second pressing roller to fold or open synchronously through the first arc rod and the second arc rod of the connecting rod assembly. A bottom roller is arranged between the first arc-shaped rod and the second arc-shaped rod; When the first pressing roller and the second pressing roller are folded synchronously, the first pressing roller and the second pressing roller respectively press both sides of the water hose against the surface of the bottom roller with the same pressure; A travel switch is arranged on one side of the hose entrainment mechanism; the connecting rod assembly further comprises a first rotation center, a second rotation center, a third rotation center, a fourth rotation center, a herringbone connecting rod, a V-shaped connecting rod, a linkage rod, a first push rod and a second push rod; The herringbone connecting rod includes a first hinge point, a second hinge point and a third hinge point; The telescopic rod drives the first hinge point, the herringbone connecting rod rotates around the first rotation center, the second hinge point is hinged to the first end of the first push rod, the three hinge points are hinged to the first end of the linkage rod, the second end of the first push rod is hinged to the first end of the first arc rod, the second end of the first arc rod is provided with a first pressure roller, and the first arc rod rotates around the second rotation center; The V-shaped connecting rod includes a fourth hinge point and a fifth hinge point, and the V-shaped connecting rod rotates around the third rotation center. The second end of the linkage rod is hinged to the fourth hinge point, and the fifth hinge point is hinged to the first end of the second push rod. The second end of the second push rod is hinged to the first end of the second arc rod, and a second pressure roller is provided at the second end of the second arc rod. The second arc rod rotates around the fourth rotation center.

2. The fire hose entrainment mechanism according to claim 1, characterized in that: Also includes a first frame and a second frame, the first frame surrounds the second rotation center, and the second frame surrounds the fourth rotation center; The first frame is fixed between the first fixing plate and the second fixing plate, and the second frame is fixed between the first fixing plate and the second fixing plate.

3. The fire hose entrainment mechanism according to claim 2, characterized in that: The first frame is provided with a first notch, and the first arc-shaped rod passes through the first notch; The second frame is provided with a second notch, and the second arc-shaped rod passes through the second notch.

4. The fire hose entrainment mechanism according to claim 2, characterized in that: The bottom roller is fixed between the first frame and the second frame.

5. The fire hose entrainment mechanism according to any one of claims 1 to 4, characterized in that: Guide wheels are respectively arranged on both sides of the water hose entrainment mechanism.

6. Fire hose take-up mechanism, characterized in that: It comprises a water hose storage space and a water hose conveying part arranged above the water hose storage space, a first guide rail beam and a second guide rail beam are arranged on both sides of the water hose conveying part, a first movable track and a second movable track are arranged on the top of the water hose storage space, two ends of the first guide rail beam are respectively movably arranged above the first movable track and the second movable track, and two ends of the second guide rail beam are respectively movably arranged above the first movable track and the second movable track; The fire hose entraining mechanism described in any one of claims 1 to 5 reciprocates along the first guide beam and the second guide beam.

7. The fire hose take-up mechanism according to claim 6, characterized in that: It also includes a mobile drive component, which is characterized by: driving the first guide rail beam and the second guide rail beam to move along the first moving rail and the second moving rail; The water hose storage space is provided with a plurality of water hose isolation areas; A first limit position and a second limit position are set on the side of the first guide rail beam.

8. A fire fighting vehicle, characterized in that: It comprises a vehicle body and a fire hose retracting mechanism as claimed in any one of claims 6 or 7 arranged on the top of the vehicle body.

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