Device for conveying fire-fighting foam liquid

Abstract

The invention provides a device for conveying fire-fighting foam liquid, and belongs to the technical field of conveying devices. Comprising a foam water tank and a fire pump, the fire pump is communicated with a connecting pipe, the connecting pipe is communicated with a spray head, a handle is fixed to the surface of the spray head, a ball cup is fixed to the support, a ball pin is slidably connected into the ball cup, a hemispherical shell is fixed to the top of the ball pin, and the surface of the ball cup is movably sleeved with the hemispherical shell. The nozzle is arranged at the top of the hemispherical shell, and the opposite faces of the supports are rotationally connected with ratchet wheels through rotating shafts. By arranging the support, the ratchet wheel and the clamping assembly, when fire-fighting foam liquid is conveyed, the spray head is installed on the support, the ratchet wheel is fixed through the fixing block, the support for supporting the spray head is stably placed in the using process, and the spray head does not need to be stabilized by consuming a large amount of physical strength; the soil clamped between adjacent ratchets of the ratchet wheel is discharged, and fixation of the ratchet wheel is prevented from being affected.

Description

Technical Field

[0001] The invention relates to the technical field of conveying devices, in particular to a device for conveying fire-fighting foam liquid. Background Art

[0002] Fire foam liquid is a special liquid used for fire fighting, mainly used to extinguish fires of oil, flammable liquids and some solids. It forms foam to cover the surface of the burning object, isolate oxygen and reduce temperature, so as to achieve the purpose of fire extinguishing. During transportation, the fire foam liquid is placed in the foam water tank of the fire truck. The foam in the foam water tank is transported to the nozzle through the fire pump and the connecting pipe, and sprayed out from the nozzle. When the foam is sprayed from the nozzle, a large reaction force will be formed at the nozzle. Therefore, when transporting the fire foam liquid through the nozzle, the nozzle needs to be held tightly, and the firefighter's feet need to be placed forward and backward, so that the center of gravity of the firefighter is backward to avoid the nozzle from getting out of control.

[0003] When the firefighting foam liquid is delivered through the nozzle, the firefighting foam liquid is sprayed out from the nozzle, and the firefighting foam liquid will provide a large reaction force to the nozzle. During the firefighting, the firefighters need to control the direction of the nozzle while resisting the reaction force of the nozzle. The firefighters will consume a lot of physical strength. When the firefighters are physically exhausted, there is a risk of the nozzle falling out of their hands, which may cause harm to the firefighters and affect the progress of the firefighting. Therefore, the present application provides a device for delivering firefighting foam liquid to meet the needs. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a device for conveying fire foam liquid to solve the problem that firefighters need to consume a lot of physical strength to control the nozzle when extinguishing a fire through the fire foam liquid sprayed by the nozzle.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: A device for conveying fire foam liquid, comprising a foam water tank and a fire pump, wherein the fire pump is connected to a connecting pipe, the connecting pipe is connected to a nozzle, a handle is fixed on the surface of the nozzle, and further comprising: A bracket, wherein a ball head seat is fixed on the bracket, a ball head pin is slidably connected in the ball head seat, a hemispherical shell is fixed on the top of the ball head pin, the hemispherical shell is movably sleeved on the surface of the ball head seat, the nozzle is arranged on the top of the hemispherical shell, the opposite surface of the bracket is rotatably connected to a ratchet wheel through a rotating shaft, and a roller ring is fixedly sleeved on the ratchet teeth of the ratchet wheel; A clamping assembly is used to fix the ratchet.

[0006] Preferably, the clamping assembly includes two square grooves opened on opposite sides of the bracket, round rods are vertically fixed to the inner walls of the square grooves, sliders are movably sleeved on the surfaces of the round rods, the sliders are slidably connected in the square grooves, tension springs are sleeved on the surfaces of the round rods, the tension springs are fixed between the square grooves and the sliders, U-shaped pedals are fixedly connected to the opposite sides of the two sliders, the U-shaped pedal is located on the inner side of the bracket, a ground insertion assembly is provided at the bottom of the U-shaped pedal, a connecting piece is provided at the bottom of the side away from the slider, an upper bending portion is provided at the top of the connecting piece, a lower bending portion is provided at the bottom of the connecting piece, and the slider is fixed to the upper bending portion of the connecting piece A fixing block is fixed at the lower bending part of the connecting piece, a guide surface 1 pointing to the end of the ratchet is arranged between adjacent ratchet teeth of the ratchet, a guide surface 2 is arranged on the vertical side of the fixing block, a guide surface 3 is arranged on the inclined side of the fixing block, and a through hole corresponding to the guide surface is opened on the surface of the ratchet. When the nozzle sprays foam, in order to ensure the stable placement of the bracket, the guide surface 2 of the fixing block is fitted on the vertical side of the ratchet teeth of the ratchet, and the guide surface 3 of the guide block is fitted on the inclined surface of the ratchet teeth of the ratchet to stop the ratchet from rotating, and the guide surface is inserted into the ground through the ground insertion component at the bottom of the U-shaped pedal, so that the bracket is placed stably.

[0007] Preferably, a side surface of the connecting member is provided with an inclined surface.

[0008] Preferably, the ground insertion component includes a guide sleeve fixed on the U-shaped pedal, a plurality of insertion rods are fixed at the bottom corners of the U-shaped pedal, guide rods are movably inserted at both ends of the guide sleeve, the away ends of the guide rods movably penetrate the U-shaped pedal and are fixedly connected to connecting rods, the away ends of the connecting rods are fixedly connected to balls, a plurality of raised balls are fixed on the opposite surfaces of the ratchet, the raised balls and the guide surfaces are staggered, a spring is sleeved on the surface of the guide rod, and the spring is located between the ground insertion piece and the U-shaped pedal. When the ratchet rotates, different raised balls contact the balls, and through cooperation with the spring, the balls drive the connecting rod and the ground insertion piece to move horizontally back and forth between adjacent insertion rods, and a limit position component is provided on the U-shaped pedal.

[0009] Preferably, the limit assembly includes a limit groove opened on the U-shaped pedal, an adjusting bolt is arranged in the limit groove, and an upper adjustment hole and a lower adjustment hole are opened on the opposite surface of the bracket. When the adjusting bolt is located in the upper adjusting hole, the raised ball contacts the resisting ball, and when the adjusting bolt is located in the lower adjusting hole, the raised ball cannot contact the resisting ball, thereby avoiding wear between the raised ball and the resisting ball.

[0010] Preferably, the bottoms of the insertion rod and the ground insertion member are both hemispherical.

[0011] Preferably, a fixing seat is fixed on the top of the hemispherical shell, and a plug plate is fixed on the surface of the handle. The plug plate is movably plugged into the top of the fixing seat, a round hole is opened on the surface of the plug plate, and a fixing bolt is threadedly connected to the surface of the fixing seat. When the plug plate is plugged into the fixing seat, the fixing bolt is rotated to be plugged into the round hole.

[0012] Preferably, a support rod is obliquely fixed to one side of the fixing seat close to the connecting pipe, a support plate is fixed to the top of the support rod, and the support plate is used to support the connecting pipe to prevent the connecting pipe from being excessively bent.

[0013] Preferably, a groove matching the connecting pipe is provided on the top of the support plate.

[0014] Preferably, the support plate is provided with an inclined portion on a side away from the nozzle.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: In the above scheme, by setting a bracket, a ratchet and a clamping assembly, when conveying fire foam liquid, the nozzle is installed on the bracket, and the ratchet is fixed by a fixing block, so that the bracket supporting the nozzle is placed stably during use, and there is no need to consume a lot of physical strength to stabilize the nozzle. Through the guidance of the guide surface one, the guide surface two and the guide surface three, the soil stuck between the adjacent ratchet teeth of the ratchet is discharged to avoid affecting the fixation of the ratchet.

[0016] By setting up a ground insertion component, when the U-shaped pedal drives the fixed block to be stuck in the ratchet, the U-shaped pedal also drives the ground insertion piece and the insertion rod to be inserted into the ground. The friction between the ground insertion piece and the insertion rod and the ground makes the bracket more stable in the horizontal direction during use. When the bracket is in a moving state, the raised ball on the ratchet drives the ball to move back and forth, and the ball drives the ground insertion piece to move back and forth between adjacent insertion rods through the connecting rod to remove the soil stuck between adjacent insertion rods to avoid affecting the next use. When the foot is on the U-shaped pedal, the foot is located between the two guide sleeves, and the foot is limited by the guide sleeve to prevent the foot from sliding on the U-shaped pedal.

[0017] By setting the upper adjustment hole, the lower adjustment hole, the adjustment bolt and the limit groove, when the adjacent insertion rods need to be cleaned, the adjusting bolt is screwed into the upper adjustment hole, so that when the ratchet wheel rotates, different raised balls come into contact with the resisting balls, and the ground insert moves back and forth between the adjacent insertion rods. When the insertion rod does not need to be cleaned, the adjusting bolt is screwed into the lower adjustment hole, and when the ratchet wheel rotates, the resisting ball cannot come into contact with the raised ball, thereby reducing the wear between the resisting ball and the raised ball and improving the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of a device for conveying fire-fighting foam liquid; Figure 2It is a schematic diagram of the structure of the support of the device for conveying fire-fighting foam liquid; Figure 3 It is a cross-sectional view of the ball head seat of the device for conveying fire-fighting foam liquid; Figure 4 It is a cross-sectional view of a slide block of a device for conveying fire-fighting foam liquid; Figure 5 A cross-sectional view of a ratchet wheel of a device for conveying fire-fighting foam liquid; Figure 6 Device for delivering fire-fighting foam liquid Figure 5 A magnified view of the structure in the middle; Figure 7 A schematic diagram of the bottom of a U-shaped pedal of a device for conveying fire-fighting foam liquid; Figure 8 Device for delivering fire-fighting foam liquid Figure 7 A magnified view of the structure at B in the middle; Fig. 9 It is a schematic diagram of the three-dimensional structure of the ratchet of the device for conveying fire-fighting foam liquid; Fig.10 A cross-sectional view of a ratchet and a fixing block of a device for delivering fire-fighting foam liquid; Fig.11 It is a structural schematic diagram of a guide surface of a ratchet wheel of a device for conveying fire-fighting foam liquid; Fig.12 It is a schematic diagram of the three-dimensional structure of the fixed block of the device for conveying fire-fighting foam liquid; Fig.13 The present invention is a schematic diagram of the three-dimensional structure of the guide surface 2 and the guide surface 3 of the fixed block of the device for conveying fire-fighting foam liquid.

[0020] [Reference Signs] 1. Nozzle; 2. Handle; 3. Connecting pipe; 4. Bracket; 5. Ball seat; 6. Ball pin; 7. Hemispherical shell; 8. Fixed seat; 9. Fixed bolt; 10. Insert plate; 11. Ratchet; 12. Roller ring; 13. Upper adjustment hole; 14. Lower adjustment hole; 15. Adjustment bolt; 16. Limiting groove; 17. Snap-on assembly; 18. Square groove; 19. Round rod; 20. Tension spring; 21. Slider; 22. U-shaped pedal; 23. Connecting piece; 24. Upper bending part; 25. Lower bending part; 26. Guide surface one; 27. Fixing block; 28. Guide surface two; 29. ​​Guide surface three; 30. Ground insertion assembly; 31. Guide sleeve; 32. Guide rod; 33. Connecting rod; 34. Ball stop; 35. Raised ball; 36. Ground insertion piece; 37. Spring; 38. Support rod; 39. Inclined surface; 40. Insertion rod; 41. Support plate; 42. Inclined part.

[0021] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION

[0022] The following is a detailed description of a device for conveying firefighting foam provided by the present invention in conjunction with the accompanying drawings and specific embodiments. It is also noted that, in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0023] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0024] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0025] like Figure 1-Figure 13 As shown, an embodiment of the present invention provides a device for conveying fire foam liquid, including a foam water tank and a fire pump, the fire pump is connected to a connecting pipe 3, the connecting pipe 3 is connected to a nozzle 1, a handle 2 is fixed on the surface of the nozzle 1, and further includes: The bracket 4 is fixed with a ball head seat 5. The bracket 4 is used to support the nozzle 1. Firefighters do not need to support the nozzle 1, which makes it easier for firefighters to use it. A ball head pin 6 is slidably connected in the ball head seat 5. A hemispherical shell 7 is fixed on the top of the ball head pin 6. The hemispherical shell 7 is movably sleeved on the surface of the ball head seat 5. The nozzle 1 is arranged on the top of the hemispherical shell 7. The opposite surface of the bracket 4 is rotatably connected with a ratchet 11 through a rotating shaft. A roller ring 12 is fixedly sleeved at the ratchet teeth of the ratchet 11. A rubber ring is arranged on the surface of the roller ring 12 to increase the friction between the ground and the ratchet 11. The ratchet 11 is more stable during rotation. The clamping assembly 17 is used to fix the ratchet 11 .

[0026] like Figure 1-Figure 13As shown, in this embodiment, the clamping assembly 17 includes two square grooves 18 opened on the opposite sides of the bracket 4, and the inner walls of the square grooves 18 are vertically fixed with round rods 19, and the surfaces of the round rods 19 are movably sleeved with sliders 21, and the sliders 21 are slidably connected in the square grooves 18. The surface of the round rods 19 is sleeved with tension springs 20, and the tension of the tension springs 20 is greater than the gravity of the U-shaped pedal 22. After the U-shaped pedal 22 moves downward, the U-shaped pedal 22 is reset by the tension of the tension springs 20. The tension springs 20 are fixed between the square grooves 18 and the sliders 21. The opposite surfaces of the two sliders 21 are fixedly connected with the U-shaped pedal 22. The U-shaped pedal 22 is located on the bracket. On the inner side of the frame 4, the interior of the bracket 4 is hollow, which reduces the overall quality and makes it more labor-saving during transportation. The bottom of the U-shaped pedal 22 is provided with a ground insertion component 30, and the bottom of the slider 21 is provided with a connecting piece 23 on the side away from the slider 21. The top of the connecting piece 23 is provided with an upper bending portion 24, and the bottom of the connecting piece 23 is provided with a lower bending portion 25. The slider 21 is fixed at the upper bending portion 24 of the connecting piece 23, and a fixing block 27 is fixed at the lower bending portion 25 of the connecting piece 23. A guide surface 26 pointing to the end of the ratchet 11 is provided between adjacent ratchet teeth of the ratchet 11, and the fixing block 27 is inserted into the ratchet 11. When the ratchet teeth of the fixed block 27 are in contact, the soil between the ratchet teeth moves outward along the guide surface 1 26 through the squeezing of the fixed block 27, so as to avoid soil jamming between the ratchet teeth and ensure that the ratchet 11 can be locked normally every time. There is no need to clean the ratchet 11 separately during use. The vertical side of the fixed block 27 is provided with a guide surface 28, and the inclined side of the fixed block 27 is provided with a guide surface 3 29. The guide surface 28 is in contact with the vertical surface of the ratchet teeth of one of the ratchets 11, and when in contact, the vertical side of the ratchet teeth of the ratchet 11 is also in a vertical state. The force of the sprinkler head 1 acts on the vertical side of the ratchet teeth. Since the vertical side is in a vertical state, it is avoided The fixing block 27 moves upward to make the ratchet 11 more stable when locked, and the guide surface 28 can also guide the soil, making it easier to remove the soil from the through hole of the ratchet 11. The surface of the ratchet 11 is provided with a through hole corresponding to the guide surface. When the nozzle 1 sprays foam, in order to ensure the stable placement of the bracket 4, the guide surface 28 of the fixing block 27 is attached to the vertical side of the ratchet teeth of the ratchet 11, and the guide surface 3 29 of the guide block is attached to the ratchet tooth inclined surface 39 of the ratchet 11, so that the ratchet 11 stops rotating, and is inserted into the ground through the ground insertion component 30 at the bottom of the U-shaped pedal 22, so that the bracket 4 is placed stably.

[0027] like Figure 1 and Figure 5 As shown, in this embodiment, a slope 39 is provided on the side of the connecting member 23, and the slope 39 can guide the soil to prevent the soil from being stuck between the roller ring 12 and the connecting member 23. The slope 39 guides the soil outward to avoid affecting the rotation of the ratchet 11.

[0028] like Figure 6As shown, in this embodiment, the ground insertion component 30 includes a guide sleeve 31 fixed on the U-shaped pedal 22, and a plurality of insertion rods 40 are fixed at the bottom corners of the U-shaped pedal 22. Two insertion rods 40 are provided at the four corners of the U-shaped pedal 22, and the insertion rods 40 are arranged in parallel. The spacing between adjacent insertion rods 40 can pass through the ground insertion piece 36. Both ends of the guide sleeve 31 are movably inserted with guide rods 32. The cross-section of the guide rod 32 is rectangular to prevent the guide rod 32 from rotating inside the guide sleeve 31, thereby preventing the ground insertion piece 36 from rotating during use. The away ends of the guide rods 32 are movably inserted through the U-shaped pedal 22 and are fixedly connected to the connecting rods 33. The away ends of the connecting rods 33 are fixedly connected to the balls 34. A plurality of raised balls 35 are fixed on the opposite surfaces of the ratchet 11, and the raised balls 35 are staggered with the guide surface 26. When the ratchet 11 is fixed, the fixing block 27 can be inserted into the ratchet 11 without contact between the raised balls 35 and the balls 34, and the two will not conflict with each other. A spring 37 is sleeved on the surface of the guide rod 32, and the ground inserting piece 36 is reset by the elastic force of the spring 37. The spring 37 is located between the ground inserting piece 36 and the U-shaped pedal 22. When the ratchet 11 rotates, different raised balls 35 contact with the balls 34, and through cooperation with the spring 37, the balls 34 drive the connecting rod 33 and the ground inserting piece 36 to move horizontally back and forth between adjacent insertion rods 40. A limiting component is provided on the U-shaped pedal 22.

[0029] like Figure 4 As shown, in this embodiment, the limit assembly includes a limit groove 16 opened on the U-shaped pedal 22, and an adjusting bolt 15 is arranged in the limit groove 16. The opposite surface of the bracket 4 is provided with an upper adjusting hole 13 and a lower adjusting hole 14. When the adjusting bolt 15 is located in the upper adjusting hole 13, the raised ball 35 contacts the ball 34. When the adjusting bolt 15 is located in the lower adjusting hole 14, the raised ball 35 cannot contact the ball 34, thereby avoiding wear of the raised ball 35 and the ball 34. When the adjusting bolt 15 is located in the lower adjusting hole 14, the ratchet 11 rotates, and the ratchet 11 drives the raised ball 35 to rotate. The raised ball 35 has no contact with the ball 34, thereby avoiding wear between the ball 34 and the ball 34, thereby increasing the service life of the raised ball 35 and the ball 34.

[0030] like Figure 7 As shown, in this embodiment, the bottoms of the insertion rod 40 and the ground insertion member 36 are both hemispherical, which reduces the contact area between the insertion rod 40 and the ground insertion member 36 and the ground, increases the pressure when inserted into the ground, and makes it easier for the insertion rod 40 and the ground insertion member 36 to be inserted into the ground.

[0031] like Figure 1-Figure 3As shown, in this embodiment, a fixing seat 8 is fixed on the top of the hemispherical shell 7, and a plug plate 10 is fixed on the surface of the handle 2. The plug plate 10 is movably plugged into the top of the fixing seat 8. A circular hole is opened on the surface of the plug plate 10, and a fixing bolt 9 is threadedly connected to the surface of the fixing seat 8. When the plug plate 10 is plugged into the fixing seat 8, the fixing bolt 9 is rotated to insert the fixing bolt 9 into the circular hole. After the plug plate 10 on the handle 2 is inserted into the fixing seat 8, the fixing bolt 9 is tightened so that the fixing bolt 9 is screwed into the circular hole of the plug plate 10, and the plug plate 10 is fixed, thereby fixing the nozzle 1. Secondly, a groove seat is provided on the top of the fixing seat 8, and the handle 2 can be snapped into the inside of the groove seat to further position the handle 2 and the nozzle 1.

[0032] like Figure 1-Figure 3 As shown, in the present embodiment, a support rod 38 is obliquely fixed on one side of the fixing seat 8 close to the connecting pipe 3, and a support plate 41 is fixed on the top of the support rod 38. The support plate 41 is used to support the connecting pipe 3 to prevent the connecting pipe 3 from being excessively bent. When in use, the connecting pipe 3 is overlapped on the top of the support plate 41. The support of the connecting pipe 3 by the support plate 41 can prevent the connecting pipe 3 from being bent, thereby ensuring smooth water flow of the connecting pipe 3. After the connecting pipe 3 is less bent, it can be protected to reduce the possibility of damage to the connecting pipe 3 at the bending point, thereby increasing the service life of the connecting pipe 3.

[0033] like Figure 1-Figure 2 As shown, in this embodiment, a groove adapted to the connecting tube 3 is provided on the top of the support plate 41, and the groove can limit the connecting tube 3 to prevent the connecting tube 3 from moving on the top of the support plate 41, making the whole more stable during use, and the connecting tube 3 is difficult to separate from the support plate 41.

[0034] like Figure 1-Figure 3 As shown, in this embodiment, a slanted portion 42 is provided on the side of the support plate 41 away from the nozzle 1, and the slanted portion 42 supports the connecting pipe 3 so that the connecting pipe 3 droops naturally, thereby preventing the connecting pipe 3 from being bent too much.

[0035] Working principle: before delivering fire foam liquid, insert the plug plate 10 on the handle 2 into the fixing seat 8, then tighten the fixing bolt 9, connect the connecting pipe 3 with the nozzle 1, and after connection, the connecting pipe 3 is overlapped on the supporting plate 41 to avoid excessive bending of the connecting pipe 3, protect the connecting pipe 3, and also avoid clogging of the fire foam liquid; Then start the fire pump, and the fire pump can transport the foam liquid in the foam water tank to the nozzle 1 through the connecting pipe 3, and spray it out from the nozzle 1; Before spraying the fire foam liquid, the foot can be stepped on the U-shaped pedal 22, and the U-shaped pedal 22 drives the slider 21 to slide on the inner wall of the square groove 18, and the slider 21 drives the connecting piece 23 to move downward, and the connecting piece 23 drives the fixed block 27 to move downward, and the fixed block 27 will move between the ratchet teeth of the ratchet 11, and the guide surface 28 and the guide surface 39 of the fixed block 27 are respectively in contact with the ratchet teeth vertical surface and the inclined surface 39 of the ratchet 11, so that the ratchet 11 is fixed, so that the bracket 4 stably supports the spray head 1, and the spray head 1 can rotate when spraying the fire foam liquid, and the spray head 1 drives the fixed seat 8 to rotate through the handle 2 and the plug plate 10, and the fixed seat 8 drives the hemispherical shell 7 to rotate, and the hemispherical shell 7 drives the ball head pin 6 to rotate on the inner wall of the ball head seat 5, so the spray head 1 can be flexibly adjusted; Secondly, during the downward movement of the U-shaped pedal 22, the U-shaped pedal 22 drives the insertion rod 40 to move downward, and the U-shaped pedal 22 also drives the guide rod 32 to move downward through the guide sleeve 31, and the guide rod 32 drives the connecting rod 33 to move downward, and the connecting rod 33 drives the ground insertion piece 36 to move downward, so that the insertion rod 40 and the ground insertion piece 36 are inserted into the ground together, further improving the stability of the bracket 4 in use; When the soil is blocked between the adjacent insertion rods 40 and before the bracket 4 moves, the adjusting bolt 15 is screwed into the upper adjusting hole 13, and the adjusting bolt 15 and the limiting groove 16 cooperate. At this time, after the U-shaped pedal 22 is reset upward by the tension spring 20, the ball 34 can contact the protruding ball 35. When the bracket 4 moves, the ratchet 11 rotates. During the rotation of the ratchet 11, the protruding balls 35 on different surfaces of the ratchet 11 contact the ball 34. The ball 34 will slide along the surface of the protruding ball 35, so that the ball 34 moves toward each other, and the ball 34 will drive the connecting rod 33 to move toward each other. The connecting rod 33 drives the ground inserting piece 36 to move toward each other, and the ground inserting piece 36 will move between the insertion rods 40, thereby pushing out the soil between the insertion rods 40. Afterwards, after the ball 34 is separated from the protruding ball 35, the spring 37 drives the ball 34 to reset, so that during the rotation of the ratchet 11, the ground inserting piece 36 moves back and forth, and the insertion rod 40 is cleaned more thoroughly. When the bracket 4 moves normally and the ground insert 36 does not need to clean the insert rod 40, the adjusting bolt 15 is screwed into the lower adjusting hole 14 so that the ball 34 cannot contact the protruding ball 35. At this time, the ball 34 and the protruding ball 35 can be protected to avoid serious wear of the ball 34 and the protruding ball 35. When the nozzle 1 is used, the fixing bolt 9 is loosened and the nozzle 1 is removed.

[0036] The present invention encompasses any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the above preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details.

[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A device for conveying fire-fighting foam liquid, comprising a foam water tank and a fire pump, wherein the fire pump is connected to a connecting pipe (3), the connecting pipe (3) is connected to a nozzle (1), and a handle (2) is fixed on the surface of the nozzle (1), characterized in that: Also includes: A bracket (4), wherein a ball head seat (5) is fixed on the bracket (4), a ball head pin (6) is slidably connected inside the ball head seat (5), a hemispherical shell (7) is fixed on the top of the ball head pin (6), the hemispherical shell (7) is movably sleeved on the surface of the ball head seat (5), the nozzle (1) is arranged on the top of the hemispherical shell (7), and the opposite surface of the bracket (4) is rotatably connected to a ratchet (11) via a rotating shaft, and a roller ring (12) is fixedly sleeved on the ratchet teeth of the ratchet (11); A clamping assembly (17), wherein the clamping assembly (17) is used to fix the ratchet (11).

2. The device for conveying fire-fighting foam liquid according to claim 1, characterized in that: The clamping assembly (17) comprises two square grooves (18) provided on opposite sides of the bracket (4), round rods (19) being vertically fixed to the inner walls of the square grooves (18), sliders (21) being movably sleeved on the surfaces of the round rods (19), the sliders (21) being slidably connected in the square grooves (18), tension springs (20) being sleeved on the surfaces of the round rods (19), the tension springs (20) being fixed between the square grooves (18) and the sliders (21), the opposite sides of the two sliders (21) being fixedly connected to U-shaped pedals (22), the U-shaped pedals (22) being located on the inner side of the bracket (4), the bottom of the U-shaped pedals (22) being provided with a ground insertion assembly (30), the bottom of the slider (21) being provided with a connecting piece (23) on the side away from the connecting piece (21), the top of the connecting piece (23) being provided with an upper bending portion (24), the bottom of the connecting piece (23) being provided with a lower bending portion (25), the slider (21) being fixed to the connecting piece (2 A fixing block (27) is fixed at the upper bending portion (24) of the connecting member (23), a lower bending portion (25) of the connecting member (23), a guide surface (26) pointing to the end of the ratchet (11) is provided between adjacent ratchet teeth of the ratchet (11), a guide surface (28) is provided on the vertical side of the fixing block (27), a guide surface (3) is provided on the inclined side of the fixing block (27), and a passage corresponding to the guide surface is provided on the surface of the ratchet (11). When the nozzle (1) sprays foam, in order to ensure the stable placement of the bracket (4), the second guide surface (28) of the fixing block (27) is fitted on the vertical side of the ratchet teeth of the ratchet (11), and the third guide surface (29) of the guide block is fitted on the ratchet tooth inclined surface (39) of the ratchet (11), so that the ratchet (11) stops rotating, and the ground insertion component (30) at the bottom of the U-shaped pedal (22) is inserted into the ground, so that the bracket (4) is stably placed.

3. The device for conveying fire-fighting foam liquid according to claim 2, characterized in that: The side surface of the connecting piece (23) is provided with an inclined surface (39).

4. The device for conveying fire-fighting foam liquid according to claim 2, characterized in that: The ground insertion assembly (30) comprises a guide sleeve (31) fixed on the U-shaped pedal (22), a plurality of insertion rods (40) are fixed at the bottom corners of the U-shaped pedal (22), both ends of the guide sleeve (31) are movably inserted with the guide rods (32), the away ends of the guide rods (32) are movably penetrated through the U-shaped pedal (22) and are fixedly connected to the connecting rods (33), the away ends of the connecting rods (33) are fixedly connected to the balls (34), and the opposite surfaces of the ratchet (11) are fixed with a plurality of protruding balls (35), the protruding balls (35) are fixed to the opposite surfaces of the ratchet (11), and the protruding balls (35) are fixed to the opposite surfaces of the ratchet (11). The balls (35) are staggered with respect to the guide surface (26), a spring (37) is sleeved on the surface of the guide rod (32), and the spring (37) is located between the ground inserting piece (36) and the U-shaped pedal (22). When the ratchet (11) rotates, different raised balls (35) contact the balls (34), and the balls (34) cooperate with the spring (37) to drive the connecting rod (33) and the ground inserting piece (36) to move horizontally back and forth between adjacent insertion rods (40), and a limit position assembly is provided on the U-shaped pedal (22).

5. The device for conveying fire-fighting foam liquid according to claim 4, characterized in that: The limiting assembly comprises a limiting groove (16) formed on the U-shaped pedal (22), an adjusting bolt (15) being arranged in the limiting groove (16), and an upper adjusting hole (13) and a lower adjusting hole (14) being arranged on the opposite surface of the bracket (4). When the adjusting bolt (15) is located in the upper adjusting hole (13), the raised ball (35) contacts the resisting ball (34), and when the adjusting bolt (15) is located in the lower adjusting hole (14), the raised ball (35) and the resisting ball (34) cannot contact each other, thereby avoiding wear of the raised ball (35) and the resisting ball (34).

6. The device for conveying fire-fighting foam liquid according to claim 4, characterized in that: The bottoms of the insertion rod (40) and the ground insertion piece (36) are both hemispherical.

7. The device for conveying fire-fighting foam liquid according to claim 1, characterized in that: A fixing seat (8) is fixed on the top of the hemispherical shell (7), and a plug plate (10) is fixed on the surface of the handle (2). The plug plate (10) is movably plugged into the top of the fixing seat (8). A circular hole is provided on the surface of the plug plate (10). A fixing bolt (9) is threadedly connected to the surface of the fixing seat (8). When the plug plate (10) is plugged into the fixing seat (8), the fixing bolt (9) is rotated so that the fixing bolt (9) is plugged into the circular hole.

8. The device for conveying fire-fighting foam liquid according to claim 7, characterized in that: A support rod (38) is obliquely fixed on one side of the fixing seat (8) close to the connecting pipe (3), and a support plate (41) is fixed on the top of the support rod (38). The support plate (41) is used to support the connecting pipe (3) to prevent the connecting pipe (3) from being excessively bent.

9. The device for conveying fire-fighting foam liquid according to claim 8, characterized in that: The top of the support plate (41) is provided with a groove adapted to the connecting pipe (3).

10. The device for conveying fire-fighting foam liquid according to claim 9, characterized in that: The support plate (41) is provided with an inclined portion (42) on a side away from the spray head (1).

Images