Underwater sewage type hydraulic hoist

Abstract

The utility model relates to an underwater sewage type hydraulic hoist, which comprises a cylinder body, a cylinder cover arranged at one end of the cylinder body, a piston rod horizontally penetrating through the cylinder cover, and a lifting lug arranged at the end of the piston rod; an installation ring is arranged on the end face of the cylinder cover, the middle part of the installation ring is used for the piston ring to penetrate through, a mud scraping lip for scraping mud is arranged on the inner wall of the installation ring, the inner wall of the mud scraping lip is in contact with the inner wall of the piston rod; a radial compensation spring is arranged on the outer wall of the mud scraping lip; during the working process of the hydraulic hoist, the mud scraping lip moves relative to the piston rod, the inclined surface of the mud scraping lip can scrape off the stains adhered to the piston rod, and the stains can be guided out along the inclined surface of the mud scraping lip; the radial compensation spring arranged on the outer wall of the mud scraping lip can compensate through the contraction of the radial compensation spring after long-term use, and the sealing performance of the mud scraping lip can still be ensured; the setting of the mud scraping lip realizes the scraping of the stains on the piston rod, and ensures that the stains adhered to the piston rod cannot enter the cylinder body.

Description

Technical Field

[0001] This utility model relates to hydraulic gate hoists, and in particular to an underwater sewage discharge hydraulic gate hoist. Background Technology

[0002] Hydraulic gate hoists, as core equipment in various waterway projects, are widely used in reservoirs, rivers, and water conservancy projects, primarily undertaking the critical driving task of opening and closing gates. During the operation of conventional hydraulic gate hoists, the piston rod needs to directly contact the water when it extends, and impurities such as silt and suspended solids in the water easily adhere to the surface of the piston rod, forming stains.

[0003] If these stains are not cleaned properly over a long period, the hardened silt they contain will continuously rub against the sealing surface of the sealing ring and the outer wall of the piston rod during equipment operation. This wear will gradually intensify over time, not only directly causing sealing failure in the hydraulic gate hoist, leading to oil leaks, operational jamming, and other malfunctions, but also compromising the fit precision between the piston rod and the sealing ring, significantly increasing equipment maintenance costs and failure rates, and ultimately severely shortening the overall service life of the hydraulic gate hoist, affecting the stability and safety of waterway engineering operations.

[0004] In summary, how to remove stains from hydraulic rods has become an urgent problem for researchers in this field. Utility Model Content

[0005] The technical problem to be solved by this utility model is: how to remove stains from hydraulic rods; To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: This utility model is an underwater sewage discharge hydraulic gate opener, comprising: a cylinder body, a cylinder cover at one end of the cylinder body, a piston rod horizontally passing through the cylinder cover, and a lifting lug at the end of the piston rod; The cylinder head is provided with an installation ring on its end face, through which the piston ring passes. The inner wall of the installation ring is provided with a scraper lip for scraping mud, and the inner wall of the scraper lip contacts the inner wall of the piston rod. The outer wall of the scraper lip is equipped with a radial compensation spring.

[0006] Furthermore, the side of the scraper lip closest to the lug is sloped.

[0007] Furthermore, an arc-shaped skeleton is provided inside the scraper lip, the radial compensation spring is located outside the arc-shaped skeleton, and the two ends of the arc-shaped skeleton are closer to the piston rod than the middle of the arc-shaped skeleton.

[0008] Furthermore, the side of the scraper lip near the lifting lug, the outer wall of the piston rod, and the inner wall of the mounting ring form a sludge collection groove, and a sludge discharge groove is provided through the mounting ring, which connects the sludge collection groove to the outside.

[0009] Furthermore, the lifting lug has a pressing member protruding from one side of the cylinder head. When the hoist is in the ultimate compression state, the pressing member is inserted into the sludge collection tank, squeezing the sludge in the sludge collection tank out of the sludge discharge tank.

[0010] Furthermore, the material of the scraper lip is rubber, and the cross-sectional shape of the scraper lip is a right trapezoid.

[0011] The beneficial effects of this utility model are as follows: This utility model is an underwater sewage discharge hydraulic gate opener. During the operation of the hydraulic gate opener, the scraper lip moves relative to the piston rod. The inclined surface of the scraper lip can scrape off the dirt attached to the piston rod, and the dirt can be discharged along the inclined surface of the scraper lip. The radial compensation spring installed on the outer wall of the scraper lip can compensate for the shrinkage of the radial compensation spring after long-term use, and still ensure the sealing performance of the scraper lip. By setting the scraper lip, the dirt on the piston rod is scraped off, ensuring that the dirt adhering to the piston rod will not enter the cylinder. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a cross-sectional view of this embodiment; Figure 2 yes Figure 1 Enlarged view of point A; Figure 3 yes Figure 1 Enlarged view of point B; In the diagram: 1-Cylinder block, 2-Cylinder head, 3-Piston rod, 4-Lifting lug, 41-Extrusion part, 5-Mounting ring, 6-Scraper lip, 61-Bevel, 7-Compensation spring, 8-Arc-shaped frame, 9-Sludge collection trough, 91-Sludge discharge trough. Detailed Implementation

[0014] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0015] See Figure 1-3This embodiment is an underwater sewage discharge hydraulic gate opener, including: a cylinder body 1, a cylinder cover 2 at the right end of the cylinder body 1, a piston rod 3 horizontally passing through the middle of the cylinder cover 2, and a lifting lug 4 at the right end of the piston rod 3; an installation ring 5 is detachably provided on the right end face of the cylinder cover 2 by a locking component, the middle of the installation ring 5 also allowing the piston ring 3 to pass through, and a scraper lip 6 for scraping mud is provided on the inner wall of the installation ring 3, the inner wall of the scraper lip 6 contacting the inner wall of the piston rod 3; the scraper lip 5 is made of rubber, and the cross-sectional shape of the scraper lip 6 is a right trapezoid. Therefore, the front side of the scraper lip 6 is an inclined surface. During the operation of the hydraulic gate opener, the scraper lip 6 moves relative to the piston rod 3. The inclined surface 61 of the scraper lip 6 can scrape off the dirt attached to the piston rod 3, and the dirt can be discharged along the inclined surface 61 of the scraper lip 6. The radial compensation spring 7 is installed on the outer wall of the scraper lip 6. After long-term use, the radial compensation spring 7 will compensate by contraction, which can still ensure the sealing performance of the scraper lip 6, and further ensure that the dirt attached to the piston rod 6 will not enter the cylinder 1.

[0016] See Figure 1-3 In some possible embodiments, an arc-shaped skeleton 8 is provided inside the scraper lip 6, the radial compensation spring 7 is located outside the arc-shaped skeleton 8, and the two ends of the arc-shaped skeleton 8 are closer to the piston rod 3 than the middle part of the arc-shaped skeleton 8. In this embodiment, in order to ensure that the inner side of the scraper lip 6 always fits the piston rod 3, an arc-shaped skeleton 8 is installed during the forming process of the scraper lip 6. The arc-shaped skeleton 8 is initially bent towards the piston rod 3. As the radial compensation spring 7 continuously contracts and compensates, the arc-shaped skeleton 8 will gradually bend into a straight state. During this process, by adding an arc-shaped skeleton 8 inside the scraper lip 6, it is ensured that the inner side of the scraper lip 8 always fits the outer wall of the piston rod 3, and no gap is generated between the two.

[0017] See Figure 1-3 In some possible embodiments, the side of the scraper lip 6 near the lifting lug 4, the outer wall of the piston rod 3, and the inner wall of the mounting ring 5 form a sludge collection groove 9. A sludge discharge groove 91 is provided through the mounting ring 9, and the sludge discharge groove 91 connects the sludge collection groove 9 to the outside. In this embodiment, during the operation of the hydraulic gate hoist, dirt will accumulate in the dirt collection tank 9 and then be discharged through the drain tank 91 to prevent dirt from accumulating.

[0018] See Figure 1-3 In some possible embodiments, the lifting lug 4 is provided with a pressing member 41 protruding from one side of the cylinder head 2. When the hoist is in the ultimate compression state, the pressing member 41 is inserted into the sludge collection tank 9 and the sludge in the sludge collection tank 9 is squeezed out from the sludge discharge tank 91. In this embodiment, after the hydraulic gate opener finishes its work, the extrusion member 41 will be inserted into the sludge collection tank 9, and the dirt in the sludge collection tank 9 will be expelled from the sludge discharge tank 91, so as to avoid the accumulation of dirt in the sludge collection tank 9.

[0019] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An underwater sewage discharge hydraulic gate hoist, characterized in that, Includes: a cylinder block, a cylinder head provided at one end of the cylinder block, a piston rod horizontally passing through the cylinder head, and a lifting lug provided at the end of the piston rod; The cylinder head is provided with an installation ring on its end face, through which the piston rod passes. The inner wall of the installation ring is provided with a scraper lip for scraping mud, and the inner wall of the scraper lip contacts the inner wall of the piston rod. The outer wall of the scraper lip is equipped with a radial compensation spring.

2. The underwater sewage discharge hydraulic gate hoist according to claim 1, characterized in that, The side of the scraper lip closest to the lug is sloped.

3. The underwater sewage discharge hydraulic gate opener according to claim 1, characterized in that, An arc-shaped skeleton is provided inside the scraper lip, and the radial compensation spring is located outside the arc-shaped skeleton. The two ends of the arc-shaped skeleton are closer to the piston rod than the middle of the arc-shaped skeleton.

4. The underwater sewage discharge hydraulic gate opener according to claim 1, characterized in that, The side of the scraper lip near the lifting lug, the outer wall of the piston rod, and the inner wall of the mounting ring form a sludge collection groove. A sludge discharge groove is provided through the mounting ring, and the sludge discharge groove connects the sludge collection groove to the outside.

5. The underwater sewage discharge hydraulic gate opener according to claim 4, characterized in that, The lifting lug protrudes from one side of the cylinder head and is provided with a pressing member. When the hoist is in the ultimate compression state, the pressing member is inserted into the sludge collection tank and squeezes the sludge in the sludge collection tank out of the sludge discharge tank.

6. The underwater sewage discharge hydraulic gate opener according to claim 1, characterized in that, The material of the scraper lip is rubber, and the cross-sectional shape of the scraper lip is a right trapezoid.

Images