Hydraulic hoist for water conservancy gate

Abstract

The invention discloses a hydraulic hoist for a water conservancy gate, which belongs to the field of gate opening and closing and comprises an oil cylinder, a hydraulic unit fixedly connected to the outside of the oil cylinder, a motor III fixedly connected to one side of the hydraulic unit and a piston rod connected to the inside of the oil cylinder, and an extension ring part is integrally formed on the outer surface of the oil cylinder; the exterior of the oil cylinder is further connected with a salt removing unit, the salt removing unit comprises a box body fixedly connected to the exterior of the oil cylinder and used for storing a neutral cleaning agent and a liquid supply pump fixedly connected to one side of the box body, salt on the outer surface of the piston rod can be washed through the neutral cleaning agent in the box body, visible salt crystals are removed through water flow impact force, and the salt removing efficiency is improved. And meanwhile, the salt removing unit can spray anti-rust oil to the outer surface of the piston rod, the anti-rust oil can permeate into tiny concave-convex parts on the metal surface, tiny defects and capillary pores are sealed, permeation of corrosive media is reduced, salt attached to the metal surface again can be reduced through covering of the anti-rust oil, and the secondary protection effect is achieved.

Description

Technical Field

[0001] The invention relates to the field of gate opening and closing, and more specifically to a hydraulic gate hydraulic opening and closing machine. Background Art

[0002] A hydraulic gate hoist is a mechanical device that uses a hydraulic system to drive the gate or valve to open and close. It is mainly used for the control of large gates or equipment in water conservancy projects (such as sluices, dams, ship locks, etc.), hydropower plants, flood control facilities, and industrial fields. The hydraulic gate hoist is generally composed of a hydraulic system and a hydraulic cylinder. Under the control of the hydraulic system, the piston in the hydraulic cylinder makes axial reciprocating motion on the inner wall of the cylinder, thereby driving the gate to complete the lifting or rotation action.

[0003] In order to avoid the problem of excessive dust accumulation on the outside of the piston rod during use, the existing hydraulic opening and closing machine has a dust cover on the outside of the piston rod to isolate the piston rod from the external environment. For example, the existing patent (Chinese invention application patent with publication number CN118793662A) can play a dust-proof role, but in coastal or salt fog environments, condensed water may form inside the dust cover due to temperature changes, and high-concentration salt water may be formed after the salt is dissolved, which directly contacts the surface of the piston rod. After the salt contacts the metal surface, electrochemical corrosion is caused, exposing the substrate at the damaged part of the chrome plating layer. At the same time, salt crystals may also get stuck in the gap between the seal and the piston rod, scratch the seal and cause leakage. Summary of the invention

[0004] In view of the problems existing in the prior art, the object of the present invention is to provide a hydraulic gate hydraulic hoist.

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] A hydraulic gate hydraulic hoist, comprising an oil cylinder, a hydraulic unit fixedly connected to the outside of the oil cylinder, a motor fixedly connected to one side of the hydraulic unit, and a piston rod connected to the inside of the oil cylinder, wherein an extension ring is integrally formed on the outer surface of the oil cylinder; The outside of the oil cylinder is also connected to a salt removal unit, and the salt removal unit includes a box fixedly connected to the outside of the oil cylinder for storing neutral detergent, a liquid supply pump fixedly connected to one side of the box, a discharge pipe connecting the output port of the box with the input end of the liquid supply pump, a hollow ring fixedly connected to one side of the extended ring and sleeved on the outside of the piston rod, a scraper fixedly connected to the inner wall of the hollow ring, a plurality of liquid spray heads opened on one side of the hollow ring, a flow channel one opened inside the hollow ring and the extended ring and connected to the plurality of liquid spray heads, and the output end of the liquid supply pump is connected to the flow channel one through a discharge pipe two.

[0007] Furthermore, a liquid storage chamber 1 for storing a neutral detergent and a liquid storage chamber 2 for storing a rust inhibitor are provided inside the box body, a liquid adding pump is fixedly connected to the other side of the box body, a three-way pipe 1 is fixedly connected to the inner wall of the liquid storage chamber 1, and one end of the three-way pipe 1 is connected to the output end of the liquid adding pump, and the other two ends of the three-way pipe 1 are respectively connected to two tube bodies, one of which is fixed on the inner wall of the liquid storage chamber 1 and the other is penetrated into the liquid storage chamber 2, two liquid outlets are respectively provided on the outside of the two tube bodies, and the two liquid outlets are respectively located in the liquid storage chamber 1 and the liquid storage chamber 2, the output ends of the liquid storage chamber 1 and the liquid storage chamber 2 are both connected to valve bodies, and the drain pipe 1 is connected to the two valve bodies.

[0008] Furthermore, an electric heating element is fixedly connected inside the liquid storage chamber.

[0009] Furthermore, a ring body 1 and a ring body 2 are rotatably connected to the inner wall of the hollow ring portion, and bristles and a scraping portion are fixedly connected to the inner walls of the ring body 1 and the ring body 2, respectively.

[0010] Furthermore, it also includes a dynamic drive component, and the dynamic drive component includes a motor 2 and a shell fixedly connected to the outside of the cylinder, a gear 1 rotatably connected to the inner wall of the shell, a gear 2 rotatably connected to one side of the extended ring portion and meshing with the gear 1, a transmission rod rotatably connected to the extended ring portion and the inside of the hollow ring portion, a gear 3 and a gear 4 fixedly connected to the outer surface of the transmission rod, and one end of the transmission rod is fixedly connected to the gear 2, and the outer surfaces of the ring body 1 and the ring body 2 are both provided with tooth keys, and the outer wall tooth key of the ring body 1 meshes with the gear 3, and the outer wall tooth key of the ring body 2 meshes with the gear 4.

[0011] Furthermore, it also includes an isolation component, and the isolation component includes a ring body three mounted on the outer surface of the hollow ring portion, a ring body four fixedly connected to the outer surface of one end of the piston rod, an isolation cover with two ends respectively connected to the ring body three and the ring body four, and a sealing ring fixedly connected to the inner ring wall of the ring body three and the ring body four.

[0012] Furthermore, a condensation protection component is connected to the outside of the oil cylinder, and the condensation protection component includes an air compressor fixedly connected to the outside of the oil cylinder, a filter part fixedly connected to one side of the air compressor and connected to the air inlet end of the air compressor, a heating and drying part fixedly connected to the other side of the air compressor and connected to the air outlet end of the air compressor, a three-way pipe 2 connected to the output end of the heating and drying part, and two air pipes respectively connected to the other two ports of the three-way pipe, a plurality of nozzles 2 are provided on one side of the ring body, and a flow channel 2 connected to the plurality of nozzles 2 is provided inside the ring body, one of the air pipes is connected to the flow channel 2, and an exhaust valve is provided on one side of the ring body 4.

[0013] Furthermore, a plurality of nozzles 1 are provided on the inner wall of the hollow ring portion, and a flow channel 3 connected to the plurality of nozzles 1 is provided inside the hollow ring portion and the extended ring portion, and another air delivery pipe is connected to the flow channel 3.

[0014] Furthermore, it also includes a displacement drainage part, and the displacement drainage part includes a ring body six fixedly connected to the outer surface of the extension ring part, a plurality of guide rods fixedly connected to one side of the ring body six, a ring body five fixedly connected to the outer surface of the ring body three and movably sleeved on the outside of the plurality of guide rods, a hollow ring body fixedly connected to the other end of the plurality of guide rods, a screw rod whose two ends are respectively rotatably connected to the ring body six and the hollow ring body, and a motor one fixedly connected to one side of the ring body six, and the output shaft of the motor one passes through the ring body six and is fixedly connected to one end of the screw rod.

[0015] Furthermore, a fork is fixedly connected to one end of the piston rod, and the outer surface of the oil cylinder is rotatably connected to two supports.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) This solution is equipped with a salt removal unit, which can flush the salt on the outer surface of the piston rod through the neutral detergent inside the box, remove visible salt crystals through the impact force of the water flow, and regularly flush the outer surface of the piston rod to interrupt the salt "dissolution-concentration-crystallization" cycle. At the same time, the salt removal unit can also spray anti-rust oil on the outer surface of the piston rod. The anti-rust oil can penetrate into the tiny bumps on the metal surface, seal tiny defects and capillaries, reduce the penetration of corrosive media, and the coverage of the anti-rust oil can reduce the salt from adhering to the metal surface again, playing a secondary protective role.

[0017] (2) This solution is provided with a brush and a scraper part, which are driven to rotate by a dynamic drive component. The bristles can evenly scrub the surface of the piston rod under the rotation of the ring body 1, physically peel off the attached salt, corrosion products and other dirt, and enhance the cleaning effect of the neutral detergent flushing. The scraper part is driven by the rotation of the ring body 2 to pre-scrape the liquid on the outer surface of the piston rod to avoid uneven distribution of the neutral detergent on the outside of the piston rod. At the same time, it can also reduce the load of the scraper, thereby improving the overall scraping efficiency.

[0018] (3) This solution is equipped with a condensation protection component. By supplying filtered dry hot air into the interior of the isolation cover, a positive pressure air curtain can be formed between the piston rod and the isolation cover. The air curtain can block the entry of salt-containing marine salt mist, reduce the direct contact of salt with the metal surface, and thus reduce the risk of corrosion. At the same time, the hot air and low humidity environment can reduce the condensation of water vapor caused by local temperature differences, avoid the formation of a water film on the surface of the piston rod and the deposition of dissolved salt, thereby reducing the local corrosion problem caused by condensation, effectively extending the service life of the hydraulic rod, and improving the reliability and operational stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2It is a schematic diagram of the structure of the salt removal unit and condensation protection assembly of the present invention; Figure 3 It is a schematic diagram of the structure of the motor 2 and the housing of the present invention; Figure 4 It is a schematic diagram of the structure of the ring body six of the present invention; Figure 5 It is a schematic diagram of the inner wall structure of the hollow ring portion of the present invention; Figure 6 It is a schematic diagram of the structure of the displacement and drainage part of the present invention; Figure 7 It is a schematic diagram of the structure of gear 1 and gear 2 of the present invention; Figure 8 It is a schematic diagram of the structure of the ring body 1, the ring body 2, the transmission rod, the gear 3 and the gear 4 of the present invention; Fig. 9 It is a cross-sectional view of the box body of the present invention.

[0020] Description of the numbers in the figure: 1. Cylinder; 11. Extension ring; 2. Piston rod; 3. Hydraulic unit; 4. Motor 3; 5. Support; 6. Fork head; 7. Salt removal unit; 71. Box; 711. Liquid storage chamber 1; 712. Liquid storage chamber 2; 713. Electric heating element; 714. Valve body; 72. Liquid adding pump; 721. Three-way pipe 1; 722. Pipe body; 73. Liquid discharge pipe 1; 74. Liquid supply pump; 75. Hollow ring; 751. Jet head 1; 76. Liquid spray head; 77. Liquid discharge pipe 2; 78. Scraper; 79. Bristles; 791. Ring body 1; 80. Scraping part; 801. Ring body 2; 8. Isolation component; 8 1. Ring body three; 82. Ring body four; 83. Isolation cover; 9. Condensation protection assembly; 91. Air compressor; 92. Filter unit; 93. Heating and drying unit; 94. Tee pipe two; 95. Air pipe; 96. Nozzle two; 97. Exhaust valve; 10. Shifting and draining unit; 101. Ring body five; 102. Ring body six; 103. Motor one; 104. Guide rod; 105. Hollow ring body; 106. Screw rod; 12. Dynamic drive assembly; 121. Motor two; 122. Housing; 123. Gear one; 124. Gear two; 125. Transmission rod; 126. Gear three; 127. Gear four. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0022] See also Figures 1 to 9A hydraulic gate hydraulic hoist comprises an oil cylinder 1, a hydraulic unit 3 fixedly connected to the outside of the oil cylinder 1, a motor 3 4 fixedly connected to one side of the hydraulic unit 3, a piston rod 2 connected to the inside of the oil cylinder 1, a fork 6 fixedly connected to one end of the piston rod 2, two supports 5 are rotatably connected to the outer surface of the oil cylinder 1, and an extension ring portion 11 is integrally formed on the outer surface of the oil cylinder 1; The outside of the oil cylinder 1 is also connected to a salt removal unit 7, and the salt removal unit 7 includes a box body 71 fixedly connected to the outside of the oil cylinder 1 for storing neutral detergent, a liquid supply pump 74 fixedly connected to one side of the box body 71, a discharge pipe 73 connecting the output port of the box body 71 with the input end of the liquid supply pump 74, a hollow ring part 75 fixedly connected to one side of the extension ring part 11 and sleeved on the outside of the piston rod 2, a scraper 78 fixedly connected to the inner wall of the hollow ring part 75, a plurality of liquid spray heads 76 opened on one side of the hollow ring part 75, a flow channel 1 opened inside the hollow ring part 75 and the extension ring part 11 and connected to the plurality of liquid spray heads 76, and the output end of the liquid supply pump 74 is connected to the flow channel 1 through a discharge pipe 2 77.

[0023] The box 71 is provided with a liquid storage chamber 1 711 for storing neutral detergent and a liquid storage chamber 2 712 for storing rust preventive agent. A liquid adding pump 72 is fixedly connected to the other side of the box 71. A three-way pipe 1 721 is fixedly connected to the inner wall of the liquid storage chamber 1 711, and one end of the three-way pipe 1 721 is connected to the output end of the liquid adding pump 72. The other two ends of the three-way pipe 1 721 are respectively connected to two pipe bodies 722 (a valve is provided at the connection between the three-way pipe 1 721 and the two pipe bodies 722, For controlling the flow direction of liquid), one tube body 722 is fixed on the inner wall of liquid storage chamber 1 711 and the other tube body 722 is passed through liquid storage chamber 2 712, two liquid outlets are respectively provided on the outside of the two tube bodies 722, and the two liquid outlets are respectively located in liquid storage chamber 1 711 and liquid storage chamber 2 712, the output ends of liquid storage chamber 1 711 and liquid storage chamber 2 712 are both connected to valve body 714, and the drain pipe 1 73 is connected to the two valve bodies 714.

[0024] An electric heating element 713 is also fixedly connected inside the liquid storage chamber 1 711 .

[0025] By adopting the above technical solution, the motor three 4 is used to drive the oil pump in the hydraulic unit 3 to work, and the oil pump can drive the piston rod 2 to move inside the cylinder 1; the method for regularly cleaning the salt on the outer surface of the piston rod 2 is: first, the piston rod 2 is retracted into the cylinder 1, and the valve body 714 connected to the liquid storage chamber 1 711 is opened. The liquid supply pump 74 can pump the neutral detergent in the liquid storage chamber 1 711 into the discharge pipe 2 77, and enter the flow channel 1 from the discharge pipe 2 77, and then be discharged from the spray head 76 and sprayed on the outside of the piston rod 2, and the visible salt crystals are removed by the impact force of the water flow, and the outer surface of the piston rod 2 is regularly rinsed to interrupt the salt "dissolution-concentration-crystallization" cycle. The electric heating element 713 in the liquid storage chamber 1 711 can also heat the neutral detergent in the liquid storage chamber 1 711 (40-50°C), increase the temperature of the neutral detergent, and use the temperature difference to accelerate the piston The salt on the outer surface of the rod 2 is dissolved, and the scraper 78 can scrape off the water droplets on the outer surface of the piston rod 2, and then the piston rod 2 is extended from the oil cylinder 1, and the valve body 714 connected to the second liquid storage chamber 712 is opened. The liquid supply pump 74 works to pump the rust inhibitor in the second liquid storage chamber 712 into the second discharge pipe 77, and then it is discharged from the spray head 76 and sprayed on the outer surface of the piston rod 2. The rust-proof oil can penetrate into the fine concave and convex of the metal surface, seal the tiny defects and capillaries, and reduce the penetration of corrosive media. The coverage of the rust-proof oil can reduce the attachment of these salts to the metal surface again, playing a secondary protective role. The neutral detergent and the rust inhibitor can be pumped into the three-way pipe 1 721 through the liquid adding pump 72, and the neutral detergent and the rust inhibitor enter the two tube bodies 722 respectively, and are discharged from the liquid outlet outside the tube body 722 into the liquid storage chamber 1 711 and the liquid storage chamber 2 712 respectively, to realize the liquid adding function.

[0026] like Figure 3 , Figure 7 and Figure 8 As shown, a ring body 1 791 and a ring body 2 801 are rotatably connected to the inner wall of the hollow ring portion 75, and bristles 79 and a scraping portion 80 are fixedly connected to the inner walls of the ring body 1 791 and the ring body 2 801, respectively.

[0027] It also includes a dynamic drive component 12, and the dynamic drive component 12 includes a motor 2 121 and a shell 122 fixedly connected to the outside of the cylinder 1, a gear 123 rotatably connected to the inner wall of the shell 122, a gear 2 124 rotatably connected to one side of the extension ring portion 11 and meshing with the gear 1 123, a transmission rod 125 rotatably connected to the extension ring portion 11 and the inside of the hollow ring portion 75, a gear 3 126 and a gear 4 127 fixedly connected to the outer surface of the transmission rod 125, and one end of the transmission rod 125 is fixedly connected to the gear 2 124, and the outer surfaces of the ring body 1 791 and the ring body 2 801 are both provided with tooth keys, and the outer wall tooth keys of the ring body 1 791 mesh with the gear 3 126, and the outer wall tooth keys of the ring body 2 801 mesh with the gear 4 127.

[0028] By adopting the above technical scheme, when the piston rod 2 is retracted into the cylinder 1 and the spray head 76 sprays the neutral detergent onto the outer surface of the piston rod 2, the motor 2 121 works to drive the gear 1 123 to rotate, the gear 1 123 drives the gear 2 124 to rotate, the gear 2 124 drives the gear 3 126 and the gear 4 127 to rotate through the transmission rod 125, the rotation of the gear 3 126 and the gear 4 127 respectively drives the ring body 1 791 and the ring body 2 801 to rotate, when the ring body 2 801 rotates and drives the scraper part 80 to rotate, the scraper part 80 can pre-scrape the liquid on the outer surface of the piston rod 2 to avoid local accumulation or uneven thickness of the neutral detergent outside the piston rod 2. The uniform liquid film makes the scraper 78 easier to operate and reduces the missed areas. It can also reduce the load on the scraper 78, thereby improving the scraping efficiency as a whole. When the ring body 791 rotates and drives the bristles 79 to rotate, the bristles 79 can evenly brush the surface of the piston rod 2, physically peeling off the attached salt, corrosion products and other dirt, and enhancing the cleaning effect of the neutral detergent rinse.

[0029] like Figure 1 , Figure 2 and Figure 6 As shown, it also includes an isolation component 8, and the isolation component 8 includes a ring body 3 81 sleeved on the outer surface of the hollow ring portion 75, a ring body 4 82 fixedly connected to the outer surface of one end of the piston rod 2, an isolation cover 83 whose two ends are respectively connected to the ring body 3 81 and the ring body 4 82, and a sealing ring fixedly connected to the inner ring wall of the ring body 3 81 and the ring body 4 82.

[0030] The outside of the oil cylinder 1 is connected to a condensation protection component 9, and the condensation protection component 9 includes an air compressor 91 fixedly connected to the outside of the oil cylinder 1, a filter part 92 fixedly connected to one side of the air compressor 91 and connected to the air inlet end of the air compressor 91, a heating and drying part 93 fixedly connected to the other side of the air compressor 91 and connected to the air outlet end of the air compressor 91, a three-way pipe 94 connected to the output end of the heating and drying part 93, and two air pipes 95 respectively connected to the other two ports of the three-way pipe 94, a plurality of nozzles 96 are provided on one side of the ring body 3 81, and a flow channel 2 connected to the plurality of nozzles 96 is provided inside the ring body 3 81, one of the air pipes 95 is connected to the flow channel 2, and an exhaust valve 97 is provided on one side of the ring body 4 82.

[0031] A plurality of nozzles 751 are provided on the inner wall of the hollow ring portion 75, and a flow channel 3 connected to the plurality of nozzles 751 is provided inside the hollow ring portion 75 and the extended ring portion 11, and another air delivery pipe 95 is connected to the flow channel 3.

[0032] By adopting the above technical solution, the piston rod 2 can be isolated from the external environment by the isolation cover 83. The isolation cover 83 is a rubber cover that can be expanded or retracted with the movement of the piston rod 2. The filter part 92 filters the particulate matter in the external gas. The air compressor 91 can pressurize the filtered gas and send it to the heating and drying part 93. The heating and drying part 93 heats the gas by electric heating. The hot gas discharged from the heating and drying part 93 enters the gas pipeline 95, enters the flow channel 2 from the gas pipeline 95, and is finally discharged from the nozzle 2 96 into the space between the isolation cover 83 and the piston rod 2. A positive pressure air curtain can be formed between the piston rod 2 and the isolation cover 83. The air curtain can block the entry of salt-containing marine salt mist, reduce the direct contact of salt with the metal surface, and thus reduce the risk of corrosion. At the same time, the hot air and low humidity environment supplied can reduce the condensation of water vapor caused by local temperature difference, avoid the deposition of dissolved salt after the water film is formed on the surface of the piston rod 2, and thus reduce the local corrosion problem caused by condensation, effectively extend the service life of the hydraulic rod, and improve the reliability and operation stability of the equipment.

[0033] like Figure 1 , Figure 4 and Figure 6 As shown, it also includes a displacement drainage part 10, and the displacement drainage part 10 includes a ring body 6 102 fixedly connected to the outer surface of the extension ring part 11, a plurality of guide rods 104 fixedly connected to one side of the ring body 6 102, a ring body 5 101 fixedly connected to the outer surface of the ring body 3 81 and movably sleeved on the outside of the plurality of guide rods 104, a hollow ring body 105 fixedly connected to the other end of the plurality of guide rods 104, a screw rod 106 whose two ends are rotatably connected to the ring body 6 102 and the hollow ring body 105 respectively, and a motor 103 fixedly connected to one side of the ring body 6 102, and the output shaft of the motor 103 passes through the ring body 6 102 and is fixedly connected to one end of the screw rod 106.

[0034] By adopting the above technical solution, before the salt on the outer surface of the piston rod 2 is treated (before the piston rod 2 is retracted into the oil cylinder 1 and the spray head 76 sprays the neutral detergent to the outer surface of the piston rod 2), the motor 103 works to drive the screw rod 106 to rotate, and the rotation of the screw rod 106 can drive the ring body 5 101 to move. The ring body 5 101 is guided to move by the guide rod 104 and can also drive the ring body 3 81 to move. The ring body 3 81 moves toward the direction of the hollow ring body 105, so that the ring body 3 81 is separated from the outer surface of the extension ring part 11, so that the hollow ring part 75 can be exposed from the isolation cover 83. When the spray head 76 sprays the detergent, the detergent on the outer surface of the piston rod 2 will not drip on the inner wall of the isolation cover 83 when dripping from the piston rod 2, and the detergent will directly drip to the outside, avoiding the situation where liquid is retained inside the isolation cover 83.

[0035] Instructions for use: Motor three 4 is used to drive the oil pump in the hydraulic unit 3 to work, and the oil pump can drive the piston rod 2 to move inside the cylinder 1; the method for regularly cleaning the salt on the outer surface of the piston rod 2 is: first, the piston rod 2 is retracted into the cylinder 1, and the valve body 714 connected to the liquid storage chamber 1 711 is opened. The liquid supply pump 74 can pump the neutral detergent in the liquid storage chamber 1 711 into the discharge pipe 2 77, and then enter the flow channel 1 from the discharge pipe 2 77, and then be discharged from the spray head 76 and sprayed on the outside of the piston rod 2, and the visible salt crystals are removed by the impact force of the water flow, and the outer surface of the piston rod 2 is regularly rinsed to interrupt the salt "dissolution-concentration-crystallization" cycle, and the water droplets on the outer surface of the piston rod 2 can be scraped off by the scraper 78, and then the piston rod 2 extends out from the oil cylinder 1, the valve body 714 connected to the second liquid storage chamber 712 is opened, the liquid supply pump 74 works to pump the rust inhibitor in the second liquid storage chamber 712 into the second liquid discharge pipe 77, and then it is discharged from the liquid spray head 76 and sprayed on the outer surface of the piston rod 2. When the piston rod 2 is retracted into the oil cylinder 1 and the liquid spray head 76 sprays the neutral detergent to the outer surface of the piston rod 2, the motor 121 works to rotate the ring body 1 791 and the ring body 2 801. When the ring body 2 801 rotates and drives the scraper part 80 to rotate, the scraper part 80 can pre-scrape the liquid on the outer surface of the piston rod 2 to avoid local accumulation or uneven thickness of the neutral detergent outside the piston rod 2. When the ring body 1 791 rotates and drives the bristles 79 to rotate, the bristles 79 can evenly scrub the surface of the piston rod 2.

[0036] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hydraulic gate hoist, comprising an oil cylinder (1), a hydraulic unit (3) fixedly connected to the outside of the oil cylinder (1), a motor (4) fixedly connected to one side of the hydraulic unit (3), and a piston rod (2) connected to the inside of the oil cylinder (1), characterized in that: An extension ring portion (11) is integrally formed on the outer surface of the oil cylinder (1); The oil cylinder (1) is also connected to a salt removal unit (7) on the outside, and the salt removal unit (7) comprises a box (71) fixedly connected to the outside of the oil cylinder (1) for storing a neutral detergent, a liquid supply pump (74) fixedly connected to one side of the box (71), a liquid discharge pipe (73) connecting the output port of the box (71) with the input end of the liquid supply pump (74), a hollow ring (75) fixedly connected to one side of the extension ring (11) and sleeved on the outside of the piston rod (2), a scraper (78) fixedly connected to the inner wall of the hollow ring (75), a plurality of liquid spray heads (76) arranged on one side of the hollow ring (75), and a flow channel (1) arranged inside the hollow ring (75) and the extension ring (11) and connected to the plurality of liquid spray heads (76), and the output end of the liquid supply pump (74) is connected to the flow channel (1) via a liquid discharge pipe (77).

2. A hydraulic gate hydraulic hoist according to claim 1, characterized in that: The box (71) is provided with a first liquid storage chamber (711) for storing a neutral detergent and a second liquid storage chamber (712) for storing a rust preventive. A liquid adding pump (72) is fixedly connected to the other side of the box (71). A three-way pipe (721) is fixedly connected to the inner wall of the first liquid storage chamber (711). One end of the three-way pipe (721) is connected to the output end of the liquid adding pump (72). The other two ends of the three-way pipe (721) are respectively connected to two pipe bodies (722), one of which ( The first liquid storage chamber (711) and the second liquid storage chamber (712) are fixed on the inner wall of the first liquid storage chamber (711) and another tube body (722) is inserted into the second liquid storage chamber (712). Two liquid outlets are respectively provided on the outside of the two tube bodies (722), and the two liquid outlets are respectively located in the first liquid storage chamber (711) and the second liquid storage chamber (712). The output ends of the first liquid storage chamber (711) and the second liquid storage chamber (712) are both connected to the valve body (714), and the discharge pipe 1 (73) is connected to the two valve bodies (714).

3. A hydraulic gate hydraulic hoist according to claim 2, characterized in that: An electric heating element (713) is also fixedly connected inside the first liquid storage chamber (711).

4. A hydraulic gate hydraulic hoist according to claim 3, characterized in that: The inner wall of the hollow ring portion (75) is rotatably connected to a ring body 1 (791) and a ring body 2 (801), and the inner walls of the ring body 1 (791) and the ring body 2 (801) are respectively fixedly connected to bristles (79) and a scraping portion (80).

5. A hydraulic gate hydraulic hoist according to claim 4, characterized in that: The invention also comprises a dynamic drive assembly (12), and the dynamic drive assembly (12) comprises a second motor (121) and a housing (122) fixedly connected to the outside of the oil cylinder (1), a first gear (123) rotatably connected to the inner wall of the housing (122), a second gear (124) rotatably connected to one side of the extension ring portion (11) and meshing with the first gear (123), a transmission rod (125) rotatably connected to the inside of the extension ring portion (11) and the hollow ring portion (75), a third gear (126) and a fourth gear (127) fixedly connected to the outer surface of the transmission rod (125), and one end of the transmission rod (125) is fixedly connected to the second gear (124), and the outer surfaces of the first ring body (791) and the second ring body (801) are both provided with tooth keys, and the tooth keys on the outer wall of the first ring body (791) mesh with the third gear (126), and the tooth keys on the outer wall of the second ring body (801) mesh with the fourth gear (127).

6. A hydraulic gate hydraulic hoist according to claim 5, characterized in that: The invention also includes an isolation assembly (8), wherein the isolation assembly (8) includes a ring body 3 (81) sleeved on the outer surface of the hollow ring portion (75), a ring body 4 (82) fixedly connected to the outer surface of one end of the piston rod (2), an isolation cover (83) whose two ends are respectively connected to the ring body 3 (81) and the ring body 4 (82), and a sealing ring fixedly connected to the inner ring walls of the ring body 3 (81) and the ring body 4 (82).

7. A hydraulic gate hydraulic hoist according to claim 6, characterized in that: The oil cylinder (1) is externally connected to a condensation protection assembly (9), and the condensation protection assembly (9) comprises an air compressor (91) fixedly connected to the outside of the oil cylinder (1), a filter unit (92) fixedly connected to one side of the air compressor (91) and connected to the air inlet end of the air compressor (91), a heating and drying unit (93) fixedly connected to the other side of the air compressor (91) and connected to the air outlet end of the air compressor (91), a three-way pipe (94) connected to the output end of the heating and drying unit (93), and two air supply pipes (95) respectively connected to the other two ports of the three-way pipe (94), a plurality of second air jet heads (96) are provided on one side of the ring body (81), and a flow channel (95) connected to the plurality of second air jet heads (96) is provided inside the ring body (81), one of the air supply pipes (95) is connected to the flow channel (9), and an exhaust valve (97) is provided on one side of the ring body (82).

8. A hydraulic gate hydraulic hoist according to claim 7, characterized in that: A plurality of nozzles one (751) are provided on the inner wall of the hollow ring portion (75), and a flow channel three connected to the plurality of nozzles one (751) is provided inside the hollow ring portion (75) and the extended ring portion (11), and another gas delivery pipe (95) is connected to the flow channel three.

9. A hydraulic gate hydraulic hoist according to claim 8, characterized in that: The invention also comprises a displacement drainage part (10), and the displacement drainage part (10) comprises a ring body six (102) fixedly connected to the outer surface of the extension ring part (11), a plurality of guide rods (104) fixedly connected to one side of the ring body six (102), a ring body five (101) fixedly connected to the outer surface of the ring body three (81) and movably sleeved on the outside of the plurality of guide rods (104), a hollow ring body (105) fixedly connected to the other end of the plurality of guide rods (104), a screw rod (106) whose two ends are respectively rotatably connected to the ring body six (102) and the hollow ring body (105), and a motor one (103) fixedly connected to one side of the ring body six (102), wherein the output shaft of the motor one (103) passes through the ring body six (102) and is fixedly connected to one end of the screw rod (106).

10. A hydraulic gate hydraulic hoist according to claim 9, characterized in that: A fork head (6) is fixedly connected to one end of the piston rod (2), and the outer surface of the oil cylinder (1) is rotatably connected to two supports (5).

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