A water-powered lifting mast

Abstract

The present invention discloses a hydraulic lifting mast in the technical field of dust removal and fire extinguishing equipment, comprising a plurality of cylinder bodies sleeved together, the bottom of the outermost cylinder body is closed and provided with a water inlet, the top of the innermost cylinder body is provided with a water outlet, and a high-pressure micro-water droplet nozzle is installed on the water outlet. The hydraulic lifting mast of the present invention can not only play the role of mast lifting, but also realize the role of water delivery by using the mast cylinder body, has a simple and practical structure, and can be widely used in the fields of fire fighting, dust removal, cleaning, etc.

Description

Technical Field

[0001] The invention relates to the technical field of dust removal and fire extinguishing equipment, and in particular to a water-powered lifting mast. Background Art

[0002] With the development of science and technology, the "high-pressure micro-water droplet" technology has been widely used in the fields of dust removal and fire extinguishing. High-pressure micro-water droplets, also known as high-pressure fine water mist, refer to water mist with a DV0.99<100μm produced under a pressure of not less than 35MPa. High-pressure fine water mist technology is at the forefront of the development of green fire fighting technology at home and abroad. It is an efficient and environmentally friendly fire fighting technology that is the result of the cross-disciplinary crystallization. Its advanced fire fighting mechanism breaks through the traditional fire fighting concept and has the advantages of less water consumption, high fire fighting efficiency, and no secondary disasters. It is a revolution in the history of fire fighting technology development.

[0003] When high-pressure micro-water droplet technology is used in the field of dust removal and fire extinguishing, the nozzle needs to be set high to achieve high-altitude or long-distance spraying, so it is necessary to equip the water pipe support mast. In the prior art, the water pipe and the support mast are set separately, and the support mast mostly adopts a hydraulic or pneumatic mast system. The system adopts a closed loop and realizes the lifting function of the mast by controlling the pressure and flow of liquid or gas. The structural design is complex, the operation is inconvenient, and the energy consumption is high. Summary of the invention

[0004] The purpose of the present invention is to provide a water-powered lifting mast, in which only the mast has a lifting function and water can be directly transported to the top of the mast for use in operations such as fire fighting, dust removal, and cleaning.

[0005] The object of the present invention is achieved as follows: a hydraulic lifting mast includes a plurality of cylinder bodies which are sleeved together, the bottom of the outermost cylinder body is closed and provided with a water inlet, the top of the innermost cylinder body is provided with a water outlet, and a high-pressure micro-water droplet nozzle is installed on the water outlet.

[0006] The hydraulic lifting mast of the present invention has a mast body composed of multiple telescopic cylinders. When high-pressure water flows into the mast cylinder through the bottom water inlet pipe, the innermost cylinder first extends upward under the action of water volume and water pressure, and then pulls the outer cylinders to rise and extend in turn until all cylinders are fully extended. Under the action of water pressure, the mast body remains in an extended state. The top water outlet of the telescopic cylinder at the top of the mast is directly connected to the high-pressure micro-water droplet nozzle, so that the hydraulic mast not only plays a mast lifting role, but also uses the mast cylinder to achieve water delivery. When the water pumping stops, the water inlet pipe at the bottom of the mast opens the drain switch to automatically discharge the water in the mast cylinder, and the mast automatically shrinks to the initial position by relying on the cylinder's own weight.

[0007] The advantages of the present invention are: not only the mast can be lifted and lowered, but also the mast can be used as a water pipe. When the high-pressure micro-water droplet spray gun is used, the problem of complex structure and inconvenient operation caused by separate water pipes and supporting masts when high-altitude spraying or long-distance spraying is required is overcome. At the same time, the mast can be retracted to the initial length during transportation, which is very convenient for transportation.

[0008] As a further improvement of the present invention, a limit sleeve is provided on the top of the outer cylinder body, a stepped hole is provided in the center of the limit sleeve, the lower aperture of the stepped hole matches the outer diameter of the outer cylinder body, the upper aperture of the stepped hole matches the outer diameter of the inner cylinder body adjacent to the outer cylinder body, the limit sleeve is connected to the outer cylinder body through a fastener, the bottom of the inner cylinder body is provided with an annular sleeve with the same inner diameter as the inner diameter of the cylinder body, the outer diameter of the annular sleeve matches the inner diameter of the outer cylinder body adjacent to the inner cylinder body, a limit sealing sleeve is provided on the top of the innermost cylinder body, the limit sealing sleeve cover is provided on the top of the innermost cylinder body and is fixedly connected by fasteners, and the water outlet is provided on the top of the limit sealing sleeve. This prevents the cylinder body from falling out during use, ensuring safe use.

[0009] As a further improvement of the present invention, a buffer pad is provided on the top of the limit joint sleeve, so as to avoid rigid collision during the retraction of the cylinder body after use, thereby increasing the service life of the equipment.

[0010] As a further improvement of the present invention, a first sliding block is embedded in the inner wall of the upper side of the stepped hole to reduce the friction between the cylinder body and the limit joint sleeve, thereby reducing the resistance during the telescopic movement of the cylinder body.

[0011] As a further improvement of the present invention, a first annular groove and a second annular groove are provided on the outer edge of the annular sleeve, the first annular groove is located at the lower side of the second annular groove, a sealing ring is embedded in the first annular groove, and a second sliding block is embedded in the second annular groove, thereby preventing water from entering from the water inlet from flowing into the gap between the cylinder bodies to cause water leakage of the mast and further reducing the resistance during the telescopic movement of the cylinder body.

[0012] As a further improvement of the present invention, a third sliding block is embedded in the middle of the outer wall of the inner cylinder body to further avoid friction between the cylinder bodies during movement and reduce resistance during relative movement of the cylinder bodies.

[0013] As a further improvement of the present invention, the outer wall of the inner cylinder body is provided with vertical guide ribs in sections, and the lower ends of the adjacent upper guide ribs and the upper ends of the lower guide ribs are provided with annular blocks, and the third slider is embedded between the annular blocks. The provision of the guide ribs reduces the requirements for the roundness and straightness of the cylinder body, thereby reducing the manufacturing difficulty and manufacturing cost, and can prevent the cylinder body from rotating during movement through the cooperation of the guide ribs and the limit sleeve (such as providing a slot in the limit sleeve that cooperates with the guide ribs). The annular block plays the role of supporting the third slider.

[0014] As a further improvement of the present invention, the cylinder body has at least four sections, thereby effectively reducing the length of a single section of the cylinder body for easy transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a partial cutaway schematic diagram of the initial state of the water-powered lifting mast of the present invention;

[0016] Figure 2 It is a partial cutaway schematic diagram of the hydraulic lifting mast of the present invention in an extended state;

[0017] Figure 3 It is a partial view of the inner cylinder body of the hydraulic lifting mast of the present invention.

[0018] Among them, 1 is the outermost cylinder body, 2 is the second section cylinder body, 2A is the annular sleeve, 3 is the third section cylinder body, 3A is the annular sleeve, 4 is the innermost cylinder body, 4A is the annular sleeve, 5 is the water inlet, 6 is the water outlet, 7 is the limit section sleeve, 8 is the first slider, 9 is the buffer pad, 10 is the sealing ring, 11 is the second slider, 12 is the limit sealing sleeve, 13 is the third slider, 14 is the guide rib, and 15 is the annular stopper. DETAILED DESCRIPTION

[0019] like Figure 1-2 The hydraulic lifting mast shown includes four cylinder bodies that are sleeved together, which are the outermost cylinder body 1, the second cylinder body 2, the third cylinder body 3, and the innermost cylinder body 4 from the outside to the inside. The outer diameter of the inner cylinder body in the four cylinder bodies is slightly smaller than the inner diameter of the adjacent outer cylinder body, so as to reduce the requirements for the manufacturing accuracy of the single cylinder body and facilitate assembly. Among them, the bottom of the outermost cylinder body 1 is closed and provided with a water inlet 5. The top of the innermost cylinder body 4 is provided with a water outlet 6, and a high-pressure micro-water droplet nozzle is installed on the water outlet 6. Therefore, after the water pump enters the four cylinder bodies through the water inlet pipeline, the four cylinder bodies stretch upward under the action of water volume and water pressure until they are stretched to the right position, and the water pump water is transported to the water outlet 6 to realize the water transport function. When the water pump stops pumping, the water inlet pipeline at the bottom of the mast opens the drain switch to discharge the water in the mast cylinder body by itself, and the mast automatically shrinks to the initial position by relying on the dead weight of the cylinder body. Of course, in actual use, the water outlet 6 can also be connected to the pan head, water pipe bracket, water pipe, etc.

[0020] A limiting sleeve 7 is provided on the top of the outer cylinder body (including the outermost cylinder body 1, the second cylinder body 2, and the third cylinder body 3). A stepped hole is provided in the center of the limiting sleeve 7. The lower aperture of the stepped hole matches the outer diameter of the outer cylinder body, and the upper aperture of the stepped hole matches the outer diameter of the inner cylinder body adjacent to the outer cylinder body. The limiting sleeve 7 is connected to the outer cylinder body through fasteners. A first slider 8 made of polytetrafluoroethylene is provided on the upper inner wall of the stepped hole. A buffer pad 9 is provided on the top of the limiting sleeve 7 to avoid rigid collision during the retraction of the cylinder body after use, thereby increasing the service life of the equipment. A limiting sealing sleeve 12 is provided on the top of the innermost cylinder body 4. The limiting sealing sleeve 12 cover is arranged on the top of the innermost cylinder body 4 and is fixedly connected by fasteners. The water outlet 6 is arranged on the top of the limiting sealing sleeve 12.

[0021] The bottom of the inner cylinder (including the second cylinder 2, the third cylinder 3, and the innermost cylinder 4) is provided with annular sleeves 2A / 3A / 4A, respectively. The inner diameter of the annular sleeve 2A / 3A / 4A matches the inner diameter of the second cylinder 2, the third cylinder 3, and the innermost cylinder 4, respectively, and the outer diameter matches the inner diameter of the outer cylinder adjacent to the inner cylinder, so as to prevent the cylinder from falling out during use, ensure safety in use, and prevent water from entering the gap between the two cylinders. The outer edge of the annular sleeve 2A / 3A / 4A is provided with a first annular groove and a second annular groove, the first annular groove is located at the lower side of the second annular groove, and a rubber sealing ring 10 is embedded in the first annular groove, so as to prevent water from entering from the water inlet into the gap between the cylinders and cause water leakage of the mast, and the second annular groove is embedded with a second slider 11 made of polytetrafluoroethylene, which further reduces the resistance during the telescopic movement of the cylinder.

[0022] like Figure 1 , 3 As shown, a third slider 13 made of polytetrafluoroethylene is also embedded in the middle of the outer wall of the inner cylinder (including the second cylinder 2, the third cylinder 3, and the innermost cylinder 4) to further reduce the resistance during the relative movement of the cylinder. Specifically, the outer wall of the inner cylinder is segmented with vertical guide ribs 14, and the lower ends of the adjacent upper guide ribs 14 and the upper ends of the lower guide ribs 14 are both provided with annular blocks 15, and the third slider 13 is embedded between the annular blocks 15. The provision of the guide ribs 14 reduces the requirements for the roundness and straightness of the inner cylinder, thereby reducing the manufacturing difficulty and manufacturing cost, and can prevent the cylinder from rotating during the movement through the cooperation of the guide ribs 14 and the limit sleeve (such as providing a slot in the limit sleeve that cooperates with the guide ribs 14).

[0023] The advantages of the present invention are: not only the mast can be lifted and lowered, but also the mast can be used as a water pipe. When the high-pressure micro-water droplet spray gun is used, the problem of complex structure and inconvenient operation caused by separate water pipes and supporting masts when high-altitude spraying or long-distance spraying is required is overcome. At the same time, the mast can be retracted to the initial length during transportation, which is very convenient for transportation.

[0024] The present invention is not limited to the above-mentioned embodiments. On the basis of the technical solution disclosed in the present invention, technicians in this field can make some substitutions and deformations to some technical features therein according to the disclosed technical content without creative labor, and these substitutions and deformations are all within the protection scope of the present invention.

Claims

1. A hydraulic lifting mast, characterized in that: It comprises a multi-section cylinder body which is sleeved together, the bottom of the outermost cylinder body is closed and provided with a water inlet, the top of the innermost cylinder body is provided with a water outlet, a high-pressure micro-water droplet nozzle is installed on the water outlet, a limit sleeve is provided on the top of the outer cylinder body, a stepped hole is provided at the center of the limit sleeve, the lower side aperture of the stepped hole matches the outer diameter of the outer cylinder body, the upper side aperture of the stepped hole matches the outer diameter of the inner cylinder body adjacent to the outer cylinder body, the limit sleeve is connected to the outer cylinder body through a fastener, The bottom of the inner cylinder body is provided with an annular sleeve with the same inner diameter as the inner diameter of the cylinder body, the outer diameter of the annular sleeve matches the inner diameter of the outer cylinder body adjacent to the inner cylinder body, the top of the innermost cylinder body is provided with a limiting sealing sleeve, the limiting sealing sleeve cover is arranged on the top of the innermost cylinder body and is fixedly connected by fasteners, the water outlet is arranged on the top of the limiting sealing sleeve, the first sliding block is embedded in the inner wall of the upper side of the stepped hole, the outer edge of the annular sleeve is provided with a first annular groove and a second annular groove, the first annular groove is located at the lower side of the second annular groove, a sealing ring is embedded in the first annular groove, and a second sliding block is embedded in the second annular groove, and a third sliding block is embedded in the middle of the outer wall of the inner cylinder body, and the outer wall of the inner cylinder body is divided into sections with vertical guide ribs, and the lower ends of the guide ribs in the adjacent upper section and the upper ends of the guide ribs in the lower section are provided with annular blocks, and the third sliding block is embedded between the annular blocks.

2. The hydraulic lifting mast according to claim 1, characterized in that: A buffer pad is arranged on the top of the limiting joint sleeve.

3. The hydraulic lifting mast according to any one of claims 1-2, characterized in that: The cylinder body has at least four sections.

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