A dock repair device capable of self-cleaning the sealing surface

Abstract

The present invention relates to the technical field of dock maintenance, and in particular to a dock maintenance device capable of self-cleaning a sealing surface, comprising an enclosure arranged on one side of a side wall of the dock during maintenance, the enclosure being a semi-enclosed structure; a cleaning unit for cleaning the bottom of the dock is arranged in the enclosure, the cleaning unit comprising a horizontally rotating cleaning rod, the bottom of the cleaning rod being staggered with brushes and a lever, the lever being vertically fixed at the bottom of the cleaning rod, the bottom of the cleaning rod being in contact with the ground of the dock, a circular cleaning area being formed on the ground of the dock when the cleaning rod rotates, the cleaning rod reciprocatingly moving along the contour extension direction of the enclosure and forming a semi-enclosed structure cleaning area, the cleaning rod cleaning the ground of the dock before the bottom of the enclosure contacts the ground of the dock, and the semi-enclosed structure cleaning area covers the contact portion between the enclosure and the ground of the dock. The present invention achieves a self-cleaning effect on the sealing surface of the dock.

Description

Technical Field

[0001] The present invention relates to the technical field of dock entrance maintenance, and specifically relates to a dock entrance maintenance device capable of self-cleaning a sealing surface. Background Art

[0002] The dock entrance refers to the entrance of a dry dock. When repairing a ship, it is usually necessary to block the dock entrance through a water-stop device, then drain the water in the dry dock, and then repair the ship. In the prior art, when blocking the dock entrance, the dock entrance is usually sealed by a water-stop belt. However, the water-stop belt has the following problems in the prior art settings: (1) The water-stop belt of a conventional dock entrance is generally installed on the dock gate. There is a risk that the water-stop belt will be impacted by hard objects during the opening, movement, and storage of the dock gate, resulting in damage to the rubber belt, causing the water-stop of the dock entrance to fail, and threatening the safety of the dry dock. (2) In the water-stop system of a conventional dock entrance, the water-stop belt is installed on the dock gate, and the bearing surface is on the dock pier. The bearing surface is generally not wide, and a high docking accuracy is required during the closing process of the dock gate. (3) In the water-stop system of a conventional dock gate, the rubber belt of the water-stop belt may be over-compressed under extreme working conditions, posing a risk of damaging the bearing surface.

[0003] Chinese Patent CN214832805U discloses a dock entrance water-stop structure, including a dock pier, a dock sill, and a dock gate. The dock pier and the dock sill are provided with a water-stop structure cooperating with the dock gate. The water-stop structure includes a pre-embedded steel plate and a water-stop belt. The pre-embedded steel plate is arranged on the dock pier and the dock sill. The water-stop belt is installed on the pre-embedded steel plate through fasteners. The water-stop belt extends along the edge of the dock entrance. The dock pier and the dock sill are provided with limit blocks on one side or both sides of the water-stop belt.

[0004] The above solution avoids the damage to the water-stop belt during closing and improves the sealing performance of the dock entrance. However, during long-term use, the side wall of the dock entrance will be damaged. In order to ensure the sealing performance of the dock entrance, it is necessary to repair the side wall of the dock entrance. When repairing the dock entrance, it is necessary to build a circle of enclosures at the side wall of the dock entrance, then pump out the water in the enclosures and put the maintenance device in for operation. However, due to the existence of marine garbage or gravel and other sundries at the bottom of the dock entrance, the enclosures cannot be well sealed. And after the enclosures are covered, the seawater in the enclosures needs to be pumped out, and there are still sundries on the ground of the dock entrance inside the enclosures. If only the seawater is pumped out, the above sundries still remain in the dock entrance, resulting in the ground in the area surrounded by the enclosures not being flat enough, which is not convenient for operation. Summary of the Invention

[0005] To solve the above problems, a dock repair device capable of self-cleaning the sealing surface is provided. When repairing the side wall of the dock, the enclosure is first placed into the water along the height direction of the dock. During the process of lowering the enclosure, it is necessary to make the enclosure fit the side wall of the dock. The cleaning rod is synchronously placed into the water with the enclosure. It should be noted that the cleaning rod is located below the enclosure, that is, the cleaning rod will contact the dock floor before the enclosure. When the cleaning rod contacts the ground, the enclosure stops descending, and the cleaning rod starts to rotate. The brush at the bottom of the cleaning rod cleans the silt on the dock floor, while the lever can clean the larger-sized sand and gravel on the dock floor. Only in this way can the dock floor be cleaned thoroughly. The cleaning rod rotates to form a circular cleaning area, and then the cleaning rod reciprocates along the contour extension direction of the enclosure. Since the enclosure is a semi-enclosed structure, the cleaning area formed by the rotating cleaning rod when cleaning the dock floor is also a semi-enclosed structure. The semi-enclosed cleaning area covers the contact area between the enclosure and the dock floor. After the cleaning rod reciprocates and cleans multiple times, the cleaning rod stops rotating, and at the same time, the enclosure continues to descend. A water-blocking strip is fixedly arranged along the contour extension direction of the enclosure at the bottom of the enclosure. When the bottom of the enclosure contacts the dock floor, the water-blocking strip blocks the connection between the enclosure and the dock. Since the sundries on the dock floor have been cleaned, the water-blocking strip can contact the dock floor more closely. Subsequently, the water in the enclosure is pumped out. At this time, due to the continuous increase in the pressure difference inside and outside the enclosure, the seawater outside the enclosure acts on the water-blocking strip at the bottom of the enclosure, and the water-blocking strip generates pressure on the dock floor, further improving the sealing performance of the water-blocking strip, thereby achieving the self-cleaning effect of the dock sealing surface.

[0006] To solve the problems of the prior art, the present invention provides a dock repair device capable of self-cleaning the sealing surface, including an enclosure arranged on one side of the side wall of the dock during repair, and the enclosure is a semi-enclosed structure;

[0007] A cleaning unit for cleaning the bottom of the dock is arranged inside the enclosure. The cleaning unit includes a horizontally rotating cleaning rod. Brushes and levers are staggered at the bottom of the cleaning rod. The levers are vertically and fixedly arranged at the bottom of the cleaning rod. The bottom of the cleaning rod contacts the dock floor. When the cleaning rod rotates, a circular cleaning area is formed on the dock floor. The cleaning rod reciprocates along the contour extension direction of the enclosure and forms a semi-enclosed structure cleaning area. The cleaning rod cleans the dock floor before the bottom of the enclosure contacts the dock floor. The semi-enclosed structure cleaning area covers the contact part between the enclosure and the dock floor.

[0008] Preferably, the cleaning rod can move along the normal direction of the inner wall of the enclosure, and there are a farthest position and a nearest position on the moving path of the cleaning rod along the normal direction of the inner wall of the enclosure. When the cleaning rod is at the farthest position, the linear distance between the cleaning rod and the inner wall of the enclosure in the horizontal direction is the largest. When the cleaning rod is at the nearest position, the linear distance between the cleaning rod and the inner wall of the enclosure in the horizontal direction is the smallest. When the cleaning rod reciprocally moves along the contour extension direction of the enclosure, the cleaning rod moves from the original position along the normal direction of the inner wall of the enclosure towards the nearest position.

[0009] Preferably, when the cleaning rod moves along the normal direction of the inner wall of the enclosure, it moves in a fixed-distance intermittent manner. When the cleaning rod moves along the contour extension direction of the enclosure to the end of the enclosure contour and then moves back, the cleaning rod moves along the normal direction of the inner wall of the enclosure once when it moves back, and the moving distance of the cleaning rod along the normal of the inner wall of the enclosure each time is less than the diameter of the circular cleaning area formed by the rotation of the cleaning rod.

[0010] Preferably, a driving unit for driving the cleaning rod to rotate is arranged on the upper part of the cleaning rod. The driving unit includes a driving shaft vertically and fixedly arranged on the upper part of the cleaning rod, and the cleaning rod rotates synchronously with the driving shaft.

[0011] Preferably, a rotation counter is arranged on the driving shaft. The rotation counter is used to record the number of rotation circles of the driving shaft. After the cleaning rod finishes cleaning, it stops rotating, and the cleaning rod after stopping rotating is parallel to any vertical plane of the inner wall of the enclosure.

[0012] Preferably, the rotation speed of the cleaning rod is one circle per second.

[0013] Preferably, a lifting seat is movably arranged vertically in the enclosure. The lifting seat can also move along the normal direction of the side wall of the enclosure. An extension ring is fixedly sleeved on the periphery of the driving shaft. There is a gap between the extension ring and the lifting seat. A spring is arranged in the gap along the axis of the driving shaft. Two ends of the spring are respectively connected to the extension ring and the lifting seat. When the cleaning rod is at the farthest position, the position of the lifting seat in the vertical direction is the lowest, and the compression stroke of the spring reaches the maximum.

[0014] Preferably, a pushing unit is arranged on the inner wall of the enclosure on one side of the lifting seat. The pushing unit includes a sliding table vertically arranged on the inner wall of the enclosure. A slider is slidably arranged on the sliding table along the extension direction of the sliding table. A first connecting rod is hinged to the slider. One end of the first connecting rod away from the slider is hinged to the lifting seat. A second connecting rod is hinged to the lower side of the sliding table. One end of the second connecting rod away from the sliding table is hinged to the lifting block.

[0015] Preferably, a high-pressure water gun with a port facing the connection between the enclosure and the dock floor is arranged on one side of the cleaning rod. The high-pressure water gun is started when the cleaning rod is at the nearest position and the cleaning rod moves back along the contour extension direction of the enclosure. After the high-pressure water gun shoots out the rated water flow, it stops operating.

[0016] Preferably, a water bar is fixedly arranged along the contour extension direction of the enclosure at the bottom of the enclosure, and the side of the water bar away from the enclosure inclines towards the periphery of the enclosure.

[0017] The beneficial effects of the present invention compared with the prior art are as follows:

[0018] 1. When repairing the side wall of the dock entrance, the enclosure is first placed into the water along the height direction of the dock entrance. During the process of lowering the enclosure, it is necessary to make the enclosure fit the side wall of the dock entrance. The cleaning rod is synchronously placed into the water with the enclosure. The cleaning rod is located below the enclosure, that is, the cleaning rod will contact the dock entrance ground prior to the enclosure. When the cleaning rod contacts the ground, the enclosure stops descending, and the cleaning rod starts to rotate. The cleaning rod rotates to form a circular cleaning area, and then the cleaning rod reciprocates along the contour extension direction of the enclosure. Since the enclosure is a semi-surrounding structure, the cleaning area formed by the rotating cleaning rod when cleaning the dock entrance ground is also a semi-surrounding structure. The semi-surrounding cleaning area covers the contact area between the enclosure and the dock entrance ground. After the cleaning rod performs multiple reciprocating cleanings, the cleaning rod stops rotating, and at the same time, the enclosure continues to descend. A water bar is fixedly arranged along the contour extension direction of the enclosure at the bottom of the enclosure. When the bottom of the enclosure contacts the dock entrance ground, the water bar blocks the connection between the enclosure and the dock entrance. Since the sundries on the dock entrance ground are cleaned up, the water bar can contact the dock entrance ground more tightly. Then, the water in the enclosure is pumped out. At this time, due to the continuous increase in the pressure difference inside and outside the enclosure, the seawater outside the enclosure acts on the water bar at the bottom of the enclosure, and the water bar generates pressure on the dock entrance ground, further improving the sealing performance of the water bar, thus realizing the self-cleaning effect on the sealing surface of the dock entrance.

[0019] 2. Brushes and push rods are staggeredly arranged at the bottom of the cleaning rod. The brushes at the bottom of the cleaning rod clean the silt on the dock entrance ground, while the push rods can clean the larger-sized gravel on the dock entrance ground. In this way, when the cleaning rod rotates, it can simultaneously handle the cleaning of silt and larger-sized gravel, ensuring that the dock entrance ground can be cleaned thoroughly.

[0020] 3. The lifting seat is driven to move jointly by the first connecting rod and the second connecting rod, so that the first connecting rod, the second connecting rod and the sliding table form a triangular structure. At the same time, when the cleaning rod is at the farthest position, the elastic force of the spring is the largest, ensuring that the cleaning rod can have sufficient pressure to penetrate the silt and contact the dock entrance ground. And as the cleaning rod moves from the farthest position to the nearest position, the elastic force of the spring gradually decreases, which can not only reduce the wear of the brushes on the cleaning rod but also extend the service life of the spring. Description of the Drawings

[0021] Figure 1 is a three-dimensional schematic diagram when a dock entrance maintenance device capable of self-cleaning the sealing surface is arranged at the dock entrance.

[0022] Figure 2 It is a three-dimensional schematic diagram of a dock repair device capable of self-cleaning the sealing surface.

[0023] Figure 3 It is a Figure 2 partial enlarged schematic diagram at position A in

[0024] Figure 4 It is a Figure 2 partial enlarged schematic diagram at position B in

[0025] Figure 5 It is a side view of a dock repair device capable of self-cleaning the sealing surface.

[0026] Figure 6 It is a Figure 5 sectional schematic diagram at C-C in

[0027] Figure 7 It is a Figure 6 partial enlarged schematic diagram at position D in

[0028] Figure 8 It is a sectional three-dimensional schematic diagram of a dock repair device capable of self-cleaning the sealing surface.

[0029] Figure 9 It is a three-dimensional schematic diagram of a dock repair device capable of self-cleaning the sealing surface after removing the enclosure and water retaining strip.

[0030] Figure 10 It is a three-dimensional schematic diagram of the state of the pushing unit after the cleaning of a dock repair device capable of self-cleaning the sealing surface is completed.

[0031] The reference numerals in the figure are:

[0032] 1. Enclosure; 11. Water retaining strip; 2. Cleaning unit; 21. Cleaning rod; 211. Brush; 212. Poking rod; 22. Guide rail; 23. Slide seat; 24. Driving unit; 241. Driving shaft; 242. Tooth ring; 243. Gear; 244. Rotary driver; 25. Lifting seat; 26. Spring; 261. Corrugated sleeve; 27. Extension ring; 28. Pushing unit; 281. First connecting rod; 282. Slide table; 283. Slide block; 284. Second connecting rod; 3. High-pressure water gun; 4. Dock entrance. Detailed implementation manners

[0033] In order to further understand the features, technical means, specific purposes and functions achieved by the present invention, the present invention will be further described in detail below in conjunction with the drawings and specific implementation manners.

[0034] Refer to Figure 1 、 Figure 2 and Figure 4 : A dock repair device capable of self-cleaning the sealing surface, including a fence 1 arranged on one side of the side wall of the dock 4 during repair. The fence 1 is a semi-enclosed structure; a cleaning unit 2 for cleaning the bottom of the dock 4 is arranged inside the fence 1. The cleaning unit 2 includes a cleaning rod 21 that rotates horizontally. Brushes 211 and push rods 212 are staggered at the bottom of the cleaning rod 21. The push rods 212 are vertically and fixedly arranged at the bottom of the cleaning rod 21. The bottom of the cleaning rod 21 contacts the ground of the dock 4. When the cleaning rod 21 rotates, a circular cleaning area is formed on the ground of the dock 4. The cleaning rod 21 reciprocates along the contour extension direction of the fence 1 and forms a semi-enclosed structure cleaning area. The cleaning rod 21 cleans the ground of the dock 4 before the bottom of the fence 1 contacts the ground of the dock 4. The semi-enclosed structure cleaning area covers the contact part between the fence 1 and the ground of the dock 4.

[0035] When installing the enclosure 1, the side of the enclosure 1 with an opening is oriented towards the side wall of the dock entrance 4. In this way, a sealed space can be formed between the enclosure 1 and the side wall of the dock entrance 4. The bottom of the enclosure 1 forms a covering area. Before repairing the side wall of the dock entrance 4, the seawater in the sealed space can be drained. However, there are often a large amount of marine garbage, sand and other sundries on the ground at the bottom of the dock entrance 4. The cleaning unit 2 further includes a guide rail 22 and a chute provided on the guide rail 22. The guide rail 22 is fixed on the inner wall of the enclosure 1 along the contour extension direction of the enclosure 1. The sliding seat 23 is slidably arranged on the sliding seat 23 along the extension direction of the guide rail 22. The cleaning rod 21 moves synchronously with the sliding seat 23. In this way, when the sliding seat 23 moves, the cleaning rod 21 can move synchronously with the sliding seat 23. The sliding seat 23 runs reciprocally when moving on the guide rail 22. In this way, the cleaning effect of the cleaning rod 21 on the ground of the dock entrance 4 can be improved. By cleaning the ground of the dock entrance 4 with the cleaning rod 21, the enclosure 1 will not be blocked by marine garbage, sand and other sundries after contacting the ground of the dock entrance 4. When repairing the side wall of the dock entrance 4, first place the enclosure 1 into the water along the height direction of the dock entrance 4. During the process of lowering the enclosure 1, it is necessary to make the enclosure 1 fit the side wall of the dock entrance 4. The cleaning rod 21 is put into the water synchronously with the enclosure 1. It should be noted that the cleaning rod 21 is located below the enclosure 1, that is, the cleaning rod 21 will contact the ground of the dock entrance 4 before the enclosure 1. When the cleaning rod 21 contacts the ground, the enclosure 1 stops descending, and the cleaning rod 21 starts to rotate. The brush 211 at the bottom of the cleaning rod 21 cleans the silt on the ground of the dock entrance 4, while the dial rod 212 can clean the larger-sized sand and stones on the ground of the dock entrance 4. In this way, the ground of the dock entrance 4 can be cleaned thoroughly. The cleaning rod 21 rotates to form a circular cleaning area. Subsequently, the cleaning rod 21 reciprocally moves along the contour extension direction of the enclosure 1. Since the enclosure 1 is a semi-surrounding structure, the cleaning area formed by the rotating cleaning rod 21 when cleaning the ground of the dock entrance 4 is also a semi-surrounding structure. The semi-surrounding cleaning area covers the contact area between the enclosure 1 and the ground of the dock entrance 4. After the cleaning rod 21 performs multiple reciprocating cleanings, the cleaning rod 21 stops rotating, and at the same time, the enclosure 1 continues to descend. A water-blocking strip 11 is fixedly arranged along the contour extension direction at the bottom of the enclosure 1. When the bottom of the enclosure 1 contacts the ground of the dock entrance 4, the water-blocking strip 11 blocks the connection between the enclosure 1 and the dock entrance 4. Since the sundries on the ground of the dock entrance 4 have been cleaned up, the water-blocking strip 11 can contact the ground of the dock entrance 4 more closely. Subsequently, the water in the enclosure 1 is pumped out. At this time, due to the continuous increase in the pressure difference inside and outside the enclosure 1, the seawater outside the enclosure 1 acts on the water-blocking strip 11 at the bottom of the enclosure 1, and the water-blocking strip 11 generates pressure on the ground of the dock entrance 4, further improving the sealing performance of the water-blocking strip 11, thereby realizing the self-cleaning effect of the sealing surface of the dock entrance 4.

[0036] Refer to Figures 1-10:The cleaning rod 21 can move along the normal direction of the inner wall of the enclosure 1, and there are a farthest position and a nearest position on the moving path of the cleaning rod 21 along the normal direction of the inner wall of the enclosure 1. When the cleaning rod 21 is at the farthest position, the linear distance between the cleaning rod 21 and the inner wall of the enclosure 1 in the horizontal direction is the largest. When the cleaning rod 21 is at the nearest position, the linear distance between the cleaning rod 21 and the inner wall of the enclosure 1 in the horizontal direction is the smallest. When the cleaning rod 21 reciprocally moves along the contour extension direction of the enclosure 1, the cleaning rod 21 moves from the original position along the normal direction of the inner wall of the enclosure 1 towards the nearest position.

[0037] When the enclosure 1 is just placed in water, the cleaning rod 21 is at the farthest position. At this time, the circular cleaning area formed by the rotation of the cleaning rod 21 is tangent to the side wall of the dock entrance 4. And when the sliding seat 23 reciprocally moves along the contour extension direction of the enclosure 1 at this time, the overall contour of the cleaning area formed by the cleaning rod 21 is the smallest. As the cleaning rod 21 gradually moves from the farthest position towards the nearest position, the contour formed by the cleaning rod 21 moving with the sliding seat 23 gradually becomes larger. In this way, the sundries inside the enclosure 1 are gradually cleared out of the covering area of the enclosure 1 during the process of the cleaning rod 21 moving from the farthest position to the nearest position.

[0038] Refer to Figures 1-10 :When the cleaning rod 21 moves along the normal direction of the inner wall of the enclosure 1, it moves in a fixed-distance intermittent manner. The cleaning rod 21 moves along the contour extension direction of the enclosure 1 to the end of the contour of the enclosure 1 and then moves back. When the cleaning rod 21 moves back, the cleaning rod 21 moves along the normal direction of the inner wall of the enclosure 1 once, and the moving distance of the cleaning rod 21 along the normal of the inner wall of the enclosure 1 each time is less than the diameter of the circular cleaning area formed by the rotation of the cleaning rod 21.

[0039] In this way, when the cleaning rod 21 moves along the normal direction of the inner wall of the enclosure 1, there will be no cleaning blind area on the ground of the dock entrance 4. However, since the cleaning rod 21 cleans in a rotating manner, the circular cleaning area formed by the cleaning rod 21 cannot clean the partial area between the end of the enclosure 1 and the side wall of the dock entrance 4.

[0040] Refer to Figures 3-5 :A driving unit 24 for driving the cleaning rod 21 to rotate is arranged on the upper part of the cleaning rod 21. The driving unit 24 includes a driving shaft 241 vertically and fixedly arranged on the upper part of the cleaning rod 21, and the cleaning rod 21 rotates synchronously with the driving shaft 241.

[0041] The driving unit 24 further includes a toothed ring 242, a gear 243, and a rotary driver 244. The toothed ring 242 is sleeved around the periphery of the drive shaft 241. A convex block is provided on the side wall of the drive shaft 241 along the axis direction of the drive shaft 241. A groove is provided on the inner wall of the toothed ring 242. The drive shaft 241 is key-connected to the groove on the toothed ring 242 through the convex block and is in sliding fit along the axis of the drive shaft 241. The gear 243 is rotatably arranged on one side of the toothed ring 242. The gear 243 meshes with the toothed ring 242. The rotary driver 244 is arranged at the end of the gear 243. The rotary driver 244 is used to drive the gear 243 to rotate. The rotary driver 244 is preferably a servo motor.

[0042] Refer to Figures 1-10 : A rotary counter is provided on the drive shaft 241. The rotary counter is used to record the number of rotations of the drive shaft 241. After the cleaning rod 21 finishes cleaning, it stops rotating, and the cleaning rod 21 after stopping rotation is parallel to any vertical plane of the inner wall of the enclosure 1.

[0043] After the cleaning rod 21 finishes cleaning, the cleaning rod 21 can vacate the bottom area inside the enclosure 1, facilitating maintenance operations by the staff.

[0044] Refer to Figures 1-10 : The rotation speed of the cleaning rod 21 is one revolution per second.

[0045] From the fact that the rotation speed of the cleaning rod 21 is one revolution per second, it can be seen that the rotation speed of the cleaning rod 21 is relatively slow. The relatively slow rotation speed can ensure that when the cleaning rod 21 cleans the ground of the dock entrance 4, the sundries on the ground of the dock entrance 4 are not easily stirred up. While the cleaning rod 21 cleans the ground of the dock entrance 4, it will not form a stirring effect on the ground of the dock entrance 4, avoiding the situation where the stirred-up sundries precipitate again, and ensuring the cleaning effect.

[0046] Refer to Figure 7 : A lifting seat 25 is movably arranged vertically inside the enclosure 1. The lifting seat 25 can also move along the normal direction of the side wall of the enclosure 1. An extension ring 27 is fixedly sleeved around the periphery of the drive shaft 241. There is a gap between the extension ring 27 and the lifting seat 25. A spring 26 is arranged along the axis of the drive shaft 241 in the gap. Two ends of the spring 26 are respectively connected to the extension ring 27 and the lifting seat 25. When the cleaning rod 21 is in the farthest position, the position of the lifting seat 25 in the vertical direction is the lowest, and the compression stroke of the spring 26 reaches the maximum.

[0047] When the cleaning rod 21 is at the farthest position, the silt and other sundries on the ground of the dock entrance 4 have not been cleaned up. A relatively large pressure needs to be generated by the spring 26 so that the lever 212 and the brush 211 at the bottom of the cleaning rod 21 can contact the ground of the dock entrance 4 and clean the sundries on the ground of the dock entrance 4. If the downward pressure of the cleaning rod 21 is small, it is easy to occur that the sundries on the ground of the dock entrance 4 cannot be completely cleaned. A corrugated sleeve 261 is sleeved outside the spring 26, so as to prevent seawater from corroding the spring 26.

[0048] Refer to Figure 8 and Figure 9 : A pushing unit 28 is arranged on the inner wall of the enclosure 1 on one side of the lifting seat 25. The pushing unit 28 includes a sliding table 282 vertically arranged on the inner wall of the enclosure 1. A sliding block 283 is slidably arranged on the sliding table 282 along the extending direction of the sliding table 282. A first connecting rod 281 is hinged on the sliding block 283. One end of the first connecting rod 281 far from the sliding block 283 is hinged to the lifting seat 25. A second connecting rod 284 is hinged to the lower side of the sliding table 282. One end of the second connecting rod 284 far from the sliding table 282 is hinged to the lifting block.

[0049] Through the above structural arrangement, when the cleaning rod 21 is initially at the farthest position, the sliding block 283 is located at the lower end of the sliding table 282. At this time, the second connecting rod 284 is in a horizontal state. The first connecting rod 281, the second connecting rod 284 and the sliding table 282 form a right triangle structure. When the cleaning rod 21 is at the nearest position, the sliding block 283 is located at the upper end of the sliding table 282. The first connecting rod 281, the second connecting rod 284 and the sliding table 282 form an obtuse triangle. When the lifting block moves along the normal direction of the inner wall of the enclosure 1, it also moves vertically at the same time. Thus, when the cleaning rod 21 moves from the farthest position to the nearest position, the lifting seat 25 gradually rises, and the spring 26 also gradually elongates and resets during the movement of the cleaning rod 21 from the farthest position to the nearest position. That is, when the cleaning rod 21 moves from the farthest position to the nearest position, the elastic force of the spring 26 gradually decreases. Such a setting is to avoid the spring 26 being in a state of being squeezed by a large pressure for a long time. Secondly, it can also reduce the unnecessary wear of the brush 211 at the bottom of the cleaning rod 21.

[0050] Refer to Figure 6 and Figure 8 : A high-pressure water gun 3 with a port facing the connection between the enclosure 1 and the ground of the dock entrance 4 is arranged on one side of the cleaning rod 21. The high-pressure water gun 3 is started when the cleaning rod 21 is at the nearest position and the cleaning rod 21 turns back along the contour extension direction of the enclosure 1. After the high-pressure water gun 3 shoots out the rated water flow, it stops running.

[0051] After the high-pressure water gun 3 stops operating after ejecting the rated beam current, it can prevent excessive debris on the ground of the dock entrance 4 from being stirred up when the water flow continuously ejects, thereby preventing excessive debris from settling at the connection between the enclosure 1 and the ground of the dock entrance 4. Since the area formed by the rotation of the cleaning rod 21 is circular, there are cleaning blind spots when the cleaning rod 21 cleans the contact area between the enclosure 1 and the ground of the dock entrance 4, that is, there are areas that the cleaning rod 21 cannot clean at the contact position between the end of the enclosure 1 and the side wall of the dock entrance 4. The high-pressure water gun 3 can clean the above-mentioned blind spots, and under the action of the high-pressure water gun 3, the debris on the ground of the dock entrance 4 can be cleaned up. However, if only the high-pressure water gun 3 is used, the cleaning effect cannot be achieved well, because the water flow ejected by the high-pressure water gun 3 will stir up the debris on the ground of the dock entrance 4, and after the high-pressure water gun 3 leaves the cleaning area, the debris will settle on the ground of the dock entrance 4 again, so that the debris on the ground of the dock entrance 4 can never be cleaned up.

[0052] Refer to Figure 1 and Figure 2 : A water blocking strip 11 is fixedly arranged along the contour extension direction of the bottom of the enclosure 1, and the side of the water blocking strip 11 away from the enclosure 1 inclines towards the outside of the enclosure 1.

[0053] In this way, before the bottom of the enclosure 1 contacts the ground of the dock entrance 4, the water blocking strip 11 first contacts the ground of the dock entrance 4. As the enclosure 1 continues to descend, the water blocking strip 11 is squeezed by the enclosure 1 and extends outwards. In this way, the water pressure outside the enclosure 1 can act on the water blocking strip 11, so that the water blocking strip 11 can seal between the enclosure 1 and the ground of the dock entrance 4.

[0054] The above embodiments only represent one or several implementation manners of the present invention, and the description is relatively specific and detailed, but it cannot be understood as a limitation on the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A dock maintenance device capable of self-cleaning the sealing surface, comprising a fence (1) arranged on one side of the side wall of the dock (4) during maintenance, and the fence (1) is a semi-enclosed structure; It is characterized in that A cleaning unit (2) for cleaning the bottom of the dock (4) is arranged in the fence (1). The cleaning unit (2) includes a cleaning rod (21) that rotates horizontally. Brushes (211) and shifting rods (212) are alternately arranged at the bottom of the cleaning rod (21). The shifting rods (212) are vertically and fixedly arranged at the bottom of the cleaning rod (21). The bottom of the cleaning rod (21) is in contact with the ground of the dock (4). When the cleaning rod (21) rotates, a circular cleaning area is formed on the ground of the dock (4). The cleaning rod (21) reciprocates along the contour extension direction of the fence (1) and forms a semi-enclosed structure cleaning area. The cleaning rod (21) cleans the ground of the dock (4) before the bottom of the fence (1) comes into contact with the ground of the dock (4). The semi-enclosed structure cleaning area covers the contact part between the fence (1) and the ground of the dock (4); The cleaning rod (21) can move along the normal direction of the inner wall of the fence (1), and there are a farthest position and a nearest position on the moving path of the cleaning rod (21) along the normal direction of the inner wall of the fence (1). When the cleaning rod (21) is at the farthest position, the linear distance between the cleaning rod (21) and the inner wall of the fence (1) in the horizontal direction is the largest. When the cleaning rod (21) is at the nearest position, the linear distance between the cleaning rod (21) and the inner wall of the fence (1) in the horizontal direction is the smallest. When the cleaning rod (21) reciprocates along the contour extension direction of the fence (1), the cleaning rod (21) moves from the original position along the normal direction of the inner wall of the fence (1) towards the nearest position; The cleaning unit (2) further includes a guide rail (22) and a chute arranged on the guide rail (22). The guide rail (22) is fixed on the inner wall of the fence (1) along the contour extension direction of the fence (1), and the sliding seat (23) is slidably arranged on the sliding seat (23) along the extension direction of the guide rail (22).

2. The dock repair device capable of self-cleaning the sealing surface according to claim 1, characterized in that, When the cleaning rod (21) moves along the normal direction of the inner wall of the fence (1), it moves in a fixed-distance intermittent manner. When the cleaning rod (21) moves along the contour extension direction of the fence (1) to the end of the contour of the fence (1) and then turns back, the cleaning rod (21) moves along the normal direction of the inner wall of the fence (1) once when turning back, and the moving distance of the cleaning rod (21) along the normal of the inner wall of the fence (1) each time is less than the diameter of the circular cleaning area formed by the rotation of the cleaning rod (21).

3. The dock repair device capable of self-cleaning the sealing surface according to claim 1, characterized in that, A driving unit (24) for driving the cleaning rod (21) to rotate is arranged on the upper part of the cleaning rod (21). The driving unit (24) includes a driving shaft (241) vertically and fixedly arranged on the upper part of the cleaning rod (21), and the cleaning rod (21) rotates synchronously with the driving shaft (241).

4. A dock repair device capable of self-cleaning the sealing surface according to claim 3, characterized in that A rotation counter is arranged on the driving shaft (241). The rotation counter is used to record the number of rotations of the driving shaft (241). After the cleaning rod (21) finishes cleaning, it stops rotating, and the cleaning rod (21) after stopping rotating is parallel to any vertical plane of the inner wall of the fence (1).

5. The dock repair device capable of self-cleaning the sealing surface according to claim 3, characterized in that, The rotation speed of the cleaning rod (21) is one revolution per second.

6. The dock repair device capable of self-cleaning the sealing surface according to claim 3, characterized in that, A lifting seat (25) is movably arranged vertically inside the enclosure (1). The lifting seat (25) can also move in the normal direction of the side wall of the enclosure (1). An extension ring (27) is fixedly sleeved around the driving shaft (241). There is a gap between the extension ring (27) and the lifting seat (25). A spring (26) is arranged in the gap along the axis of the driving shaft (241). Two ends of the spring (26) are respectively connected to the extension ring (27) and the lifting seat (25). When the cleaning rod (21) is at the farthest position, the position of the lifting seat (25) in the vertical direction is the lowest, and the compression stroke of the spring (26) reaches the maximum.

7. The dock repair device capable of self-cleaning the sealing surface according to claim 6, wherein, A pushing unit (28) is arranged on the inner wall of the enclosure (1) on one side of the lifting seat (25). The pushing unit (28) includes a sliding table (282) vertically arranged on the inner wall of the enclosure (1). A slider (283) is slidably arranged on the sliding table (282) along the extending direction of the sliding table (282). A first connecting rod (281) is hinged to the slider (283). One end of the first connecting rod (281) far from the slider (283) is hinged to the lifting seat (25). A second connecting rod (284) is hinged to the lower side of the sliding table (282). One end of the second connecting rod (284) far from the sliding table (282) is hinged to the lifting block.

8. The dock repair device capable of self-cleaning the sealing surface according to claim 1, characterized in that A high-pressure water gun (3) with a port facing the connection between the enclosure (1) and the ground of the dock entrance (4) is arranged on one side of the cleaning rod (21). The high-pressure water gun (3) starts when the cleaning rod (21) is at the nearest position and the cleaning rod (21) turns back along the contour extending direction of the enclosure (1). The high-pressure water gun (3) stops running after shooting out the rated water flow.

9. A dock repair device capable of self-cleaning the sealing surface according to claim 1, characterized in that, A water retaining strip (11) is fixedly arranged at the bottom of the enclosure (1) along the contour extending direction of the enclosure (1). One side of the water retaining strip (11) far from the enclosure (1) inclines towards the outside of the enclosure (1).

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