A spray disc sealing structure for a wall-climbing robot

Abstract

The utility model discloses a kind of spray disc sealing structures for wall-climbing robot, including the top side fixed mounting of shell shell body is equipped with fixed seat, and the inside rotation of fixed seat is connected with rotating pipe, and the top other side fixed mounting of shell is equipped with speed reducer motor, and the output end of speed reducer motor passes through shell and is fixedly installed with driving gear, and the outside below of rotating pipe is fixedly installed with driven gear, and driving gear is engaged with driven gear, further including: the bottom of rotating pipe is connected with shunt box, and the outside symmetry of shunt box is connected with two groups of spray rods, and shell inside top is fixedly installed with cover body piece;When rotating driving two groups of spray rods circumferential rotation water spray, even if sealing ring is worn due to rotation, wastewater is not easy to enter the inside of cover body, the operation of cover body inside component will not be affected, meshing of driving gear and driven gear will not be affected after long time use, improve practicality.

Description

Technical Field

[0001] This utility model relates to the field of wall-climbing robot technology, specifically to a spray disc sealing structure for a wall-climbing robot. Background Technology

[0002] The wall-climbing robot integrating ultra-high pressure water jet technology is a new type of wall-climbing robot that can freely crawl and move on curved surfaces, such as the outer surface of large ships and storage tanks. It can clean, remove paint, and remove rust from the metal surface of the storage tank by spraying ultra-high pressure water jets, which can replace the traditional sandblasting and rust removal method and achieve efficient and environmentally friendly operation.

[0003] Publication number CN222208907U discloses a spray disc sealing structure for a wall-climbing robot. This patent utilizes a multi-stage sealing structure formed by a combination of a labyrinth structure, a buffer chamber, and a friction-reducing chamber to effectively prevent wastewater and waste residue from intruding into the spray disc, thereby protecting the normal operation of the drive mechanism and rotating assembly, keeping the inside of the spray disc clean, and greatly reducing the risk of drive gear jamming. This novel sealing structure occupies little space, is easy to maintain and replace, has a compact axial structure, is lightweight, and provides good sealing performance, further improving the equipment's working efficiency and stability. However, this patent still has the following problems in actual use:

[0004] The multi-stage sealing structure, formed by the combination of the labyrinth structure, buffer chamber, and friction-reducing chamber, can effectively prevent wastewater and waste residue from entering the spray disc. However, in actual use, the rotation of the gears will cause the sealing structure to rotate. If the sealing structure rotates continuously during the use of the wall-climbing robot, it is easy to cause wear on the sealing structure. With the increase of use time, the sealing structure will become less tight, and water leakage is likely to occur after long-term use.

[0005] A spray disc sealing structure for wall-climbing robots is proposed to address the problems mentioned above. Utility Model Content

[0006] The purpose of this invention is to provide a spray disc sealing structure for a wall-climbing robot, which solves the problem of the multi-level sealing structure formed by the combination of a maze structure, a buffer chamber, and a friction-reducing chamber in the current background technology. While this structure can effectively prevent wastewater and waste residue from entering the spray disc, in actual use, the rotation of the gears will cause the sealing structure to rotate. If the sealing structure rotates continuously during the use of the wall-climbing robot, it is easy to cause wear on the sealing structure. With the increase of use time, the sealing structure will become loose, and water leakage will easily occur after long-term use.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a spray disc sealing structure for a wall-climbing robot, comprising a shell;

[0008] A fixed base is fixedly installed on one side of the top of the housing, and a rotating tube is rotatably connected inside the fixed base. A geared motor is fixedly installed on the other side of the top of the housing, and the output end of the geared motor passes through the housing and is fixedly installed with a drive gear. A driven gear is fixedly installed on the lower outside of the rotating tube, and the drive gear and the driven gear are meshed together.

[0009] Also includes:

[0010] The bottom of the rotating tube is connected to a flow divider box, and two sets of spray bars are symmetrically connected to the outside of the flow divider box. A cover is fixedly installed at the top inside the housing, and a sealing component is provided at the bottom outside the rotating tube.

[0011] The sealing assembly includes an annular sponge fixedly installed at the bottom of the cover, and two sets of mounting brackets are symmetrically installed on the outer circumference of the annular sponge at the bottom of the cover, and a movable rod is slidably connected to one side of the inner side of each set of mounting brackets.

[0012] Each of the two sets of movable rods has a movable ring fixedly installed at its top, and a telescopic spring is fitted on the upper outer surface of each set of movable rods. The two ends of the telescopic spring are fixedly connected to the movable ring and the mounting bracket, respectively.

[0013] Preferably, two sets of fixing rods are symmetrically installed around the bottom of the movable ring, and triangular blocks are fixedly installed at the bottom of each set of fixing rods. A fixing ring is fixedly installed outside the rotating tube below the movable ring, and two sets of push rods are symmetrically installed around the top of the fixing ring.

[0014] Preferably, a cylinder is fixedly installed on one side of the inner bottom of the cover, and a connecting pipe is connected through the bottom of the cylinder. An annular pipe is fixedly installed on the inner side of the annular sponge at the bottom of the cover. The end of the connecting pipe away from the cylinder passes through the cover and is connected through the annular pipe. Several nozzles are connected through the inner side of the annular pipe. An air inlet pipe is connected through one side of the cylinder, and the end of the air inlet pipe away from the cylinder is connected through the shell.

[0015] Preferably, both the connecting pipe and the air inlet pipe are equipped with a one-way valve on the side of the cylinder near the interior.

[0016] Preferably, a piston is slidably connected to one side of the inner side of the cylinder, and a sliding rod is fixedly installed on one side of the piston. The sliding rod is slidably connected to the cylinder. A return spring is sleeved on the outer side of the sliding rod. One end of the return spring is fixedly connected to the cylinder, and a movable block is fixedly installed on the other end of the return spring. The movable block is fixedly connected to the sliding rod.

[0017] Preferably, a number of push blocks are fixedly installed outside the rotating tube inside the cover, and the push blocks are slidably connected to the movable block.

[0018] Preferably, a through groove is provided on one side of the bottom of the cover, and an annular groove is provided inside the through groove. A sealing ring is slidably connected inside the annular groove, and the sealing ring is fixedly connected to the rotating tube.

[0019] Compared with the prior art, the beneficial effects of this utility model are: This spray disc sealing structure for a wall-climbing robot ensures that even if the sealing ring wears due to rotation when the rotating pipe drives the two sets of spray bars to rotate and spray water, wastewater is unlikely to enter the interior of the enclosure, thus not affecting the operation of the internal components. Furthermore, it does not affect the meshing of the drive gear and driven gear after prolonged use, improving practicality. The specific details are as follows:

[0020] 1. When using the wall-climbing robot, starting the reduction motor causes the rotating tube to rotate through the meshing of the active and driven gears. This rotation causes the two sets of spray bars to rotate circumferentially, spraying water. During rotation, the rotating tube is sealed by a sealing ring, and the outside of the channel is shielded by an annular sponge. Splashed wastewater is absorbed by the annular sponge. Simultaneously, the rotating tube's rotation is facilitated by the push rod contacting the inclined side of the triangular block. The push rod's circumferential rotation pushes the triangular block upwards, causing the movable ring to move upwards. This allows the movable rod to slide on the mounting frame and stretch the telescopic spring, causing the movable ring to squeeze the annular sponge, squeezing out the absorbed water and preventing the sponge from becoming saturated and affecting subsequent water absorption. Even if the sealing ring wears due to rotation, wastewater is unlikely to enter the interior of the enclosure, preventing any impact on the operation of internal components. Long-term use will not affect the meshing of the active and driven gears, enhancing practicality.

[0021] 2. During the rotation of the rotating tube, several push blocks rotate circumferentially. The rotation of these push blocks pushes the movable block, causing the sliding rod to slide on the cylinder and compress the return spring. After the push block leaves the movable block, the return spring resets the sliding rod, allowing the rotating tube to rotate and reciprocate. The sliding rod then drives the piston to reciprocate within the cylinder. When the piston moves to the right within the cylinder, the one-way valve inside the connecting pipe opens, while the one-way valve inside the air inlet pipe closes, allowing air from the cylinder to enter the connecting pipe. When the piston moves to the left within the cylinder, the one-way valve inside the connecting pipe closes, while the one-way valve inside the air inlet pipe opens, allowing outside air to be drawn into the cylinder through the air inlet pipe. An air hole is located on the side of the cylinder near the movable block, allowing continuous air intake into the annular pipe through the connecting pipe. The air is then ejected through a nozzle on the annular pipe, spraying air into the through-slot. This prevents water seepage into the through-slot, further improving its sealing performance and practicality. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the front cross-section structure of this utility model;

[0023] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0024] Figure 3 This is a partial three-dimensional structural diagram of the sealing assembly of this utility model;

[0025] Figure 4 This is a three-dimensional cross-sectional structural diagram of the cylindrical body of this utility model;

[0026] Figure 5 This utility model Figure 2 Enlarged structural diagram at point B.

[0027] In the diagram: 1. Shell; 101. Fixed base; 102. Rotating tube; 103. Gear motor; 104. Drive gear; 105. Driven gear; 106. Diverter box; 107. Spray bar; 108. Cover; 109. Through groove; 110. Sealing ring; 111. Annular groove; 2. Sealing assembly; 201. Annular sponge; 202. Mounting bracket; 203. Movable rod; 204. Movable ring; 205. Telescopic spring; 206. Fixed rod; 207. Triangular block; 208. Fixed ring; 2081. Push rod; 209. Cylinder; 210. Connecting pipe; 211. Annular tube; 212. Air inlet pipe; 213. Sliding rod; 214. Piston; 215. Return spring; 216. Movable block; 217. Push block. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-5 This utility model provides a technical solution: a spray disc sealing structure for a wall-climbing robot, comprising a housing 1, a fixed base 101 fixedly installed on one side of the top of the housing 1, and a rotating tube 102 rotatably connected inside the fixed base 101; a reduction motor 103 fixedly installed on the other side of the top of the housing 1, and a drive gear 104 fixedly installed at the output end of the reduction motor 103 passing through the housing 1; a driven gear 105 fixedly installed on the lower outer side of the rotating tube 102, and the drive gear 104 meshing with the driven gear 105; further comprising: a flow divider box 106 penetratingly connected to the bottom of the rotating tube 102, and two sets of spray bars 107 symmetrically penetratingly connected to the outer side of the flow divider box 106; a cover 108 fixedly installed at the top of the interior of the housing 1; and a sealing assembly 2 provided on the lower outer side of the rotating tube 102, wherein the sealing assembly 2 includes a fixed base 108 rotatably connected to the bottom of the rotating tube 102; and a sealing assembly 2 provided on the lower outer side of the rotating tube 102. An annular sponge 201 is fixedly installed at the bottom of the cover 108. Two sets of mounting brackets 202 are symmetrically installed around the annular sponge 201 at the bottom of the cover 108. Movable rods 203 are slidably connected to the inner side of each set of mounting brackets 202. Movable rings 204 are fixedly installed at the top of each set of movable rods 203. Telescopic springs 205 are sleeved on the upper outer side of each set of movable rods 203. The two ends of the telescopic springs 205 are fixedly connected to the movable rings 204 and the mounting brackets 202, respectively. This ensures that when the rotating pipe 102 rotates and drives the two sets of spray bars 107 to rotate circumferentially to spray water, even if the sealing ring 110 wears due to rotation, wastewater is not likely to enter the interior of the cover 108. This will not affect the operation of the internal components of the cover 108. After long-term use, it will not affect the meshing of the drive gear 104 and the driven gear 105, thus improving practicality.

[0030] Two sets of fixing rods 206 are symmetrically installed circumferentially at the bottom of the movable ring 204, and triangular blocks 207 are fixedly installed at the bottom of each set of fixing rods 206. A fixing ring 208 is fixedly installed on the outside of the rotating tube 102 below the movable ring 204, and two sets of push rods 2081 are symmetrically installed circumferentially at the top of the fixing ring 208, which can compress the annular sponge 201. A cylinder 209 is fixedly installed on one side of the bottom of the inner part of the cover 108, and a connecting tube 210 is connected through the bottom of the cylinder 209. The bottom of the cover 108 is located on the annular part of the cover. An annular tube 211 is fixedly installed on the inner side of the sponge 201. The end of the connecting pipe 210 away from the cylinder 209 passes through the cover 108 and is connected to the annular tube 211. Several nozzles are connected through the inner side of the annular tube 211. An air inlet pipe 212 is connected through one side of the cylinder 209, and the end of the air inlet pipe 212 away from the cylinder 209 is connected through the housing 1, allowing air to be blown onto the annular tube 211. One-way valves are provided inside the connecting pipe 210 and the air inlet pipe 212 near the cylinder 209, allowing the piston 2... The movement of 14 allows for continuous air intake into the annular pipe 211. A piston 214 is slidably connected to one side of the inner wall of the cylinder 209, and a sliding rod 213 is fixedly mounted on one side of the piston 214. The sliding rod 213 is slidably connected to the cylinder 209, and a return spring 215 is sleeved on the outer side of the sliding rod 213. One end of the return spring 215 is fixedly connected to the cylinder 209, and a movable block 216 is fixedly mounted on the other end of the return spring 215. The movable block 216 is fixedly connected to the sliding rod 213, allowing the sliding rod 214 to... 3. After movement, it can automatically reset. Several push blocks 217 are fixedly installed on the outside of the rotating tube 102 inside the cover 108, and the push blocks 217 are slidably connected to the movable block 216, so that the rotation of the rotating tube 102 can drive the sliding rod 213 to move. A through groove 109 is connected through one side of the bottom of the cover 108, and an annular groove 111 is opened inside the through groove 109. A sealing ring 110 is slidably connected inside the annular groove 111, and the sealing ring 110 is fixedly connected to the rotating tube 102, which can seal the through groove 109.

[0031] Working principle: Before using this type of spray disc sealing structure for wall-climbing robots, it is necessary to check the overall condition of the device to ensure it can function normally. Figure 1 - Figure 5As shown, when the wall-climbing robot is in use, starting the reduction motor 103 causes the rotating tube 102 to rotate through the meshing of the drive gear 104 and the driven gear 105. The rotation of the rotating tube 102 causes the two sets of spray bars 107 to rotate circumferentially, spraying water. During the rotation of the rotating tube 102, it is sealed by the sealing ring 110, and the outside of the through groove 109 is shielded by the annular sponge 201, allowing the splashed wastewater to be absorbed. Simultaneously, during the rotation of the rotating tube 102, the push rod 2081 abuts against the hypotenuse of the triangular block 207. The circumferential rotation of the push rod 2081 pushes the triangular block 207 upwards. This allows the movable ring 204 to move upward, which in turn allows the movable rod 203 to slide on the mounting bracket 202 and stretch the telescopic spring 205. This causes the movable ring 204 to squeeze the annular sponge 201, allowing the water absorbed by the annular sponge 201 to be squeezed out, thus preventing the annular sponge 201 from becoming saturated and affecting its subsequent water absorption performance. When the rotating tube 102 rotates and drives the two sets of spray bars 107 to rotate circumferentially to spray water, even if the sealing ring 110 wears due to rotation, wastewater is not likely to enter the interior of the cover 108, and will not affect the operation of the internal components of the cover 108. After long-term use, it will not affect the meshing of the drive gear 104 and the driven gear 105, thus improving practicality.

[0032] During rotation, the rotating tube 102 drives several push blocks 217 to rotate circumferentially. The rotation of the push blocks 217 can push the movable block 216 to move, causing the sliding rod 213 to slide on the cylinder 209 and compress the return spring 215. After the push blocks 217 leave the movable block 216, the return spring 215 causes the sliding rod 213 to return to its original position, allowing the rotating tube 102 to rotate and drive the sliding rod 213 to reciprocate. The sliding rod 213 drives the piston 214 to reciprocate within the cylinder 209. When the piston 214 moves to the right within the cylinder 209, the one-way valve inside the connecting pipe 210 opens, and the one-way valve inside the intake pipe 212 closes. This allows air in the cylinder 209 to enter the connecting pipe 210. When the piston 214 moves to the left in the cylinder 209, the one-way valve inside the connecting pipe 210 closes, and the one-way valve inside the air inlet pipe 212 opens. Outside air can be drawn into the cylinder 209 through the air inlet pipe 212. Furthermore, an air hole is provided on the side of the cylinder 209 near the movable block 216, so air can be continuously introduced into the annular pipe 211 through the connecting pipe 210. The air is sprayed out through the nozzle on the annular pipe 211, which can spray air into the through groove 109, thereby preventing water seepage at the through groove 109, further improving the sealing performance of the through groove 109, and enhancing its practicality.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A spray disc sealing structure for a wall-climbing robot, comprising a shell (1); A fixed base (101) is fixedly installed on one side of the top of the housing (1), and a rotating tube (102) is rotatably connected inside the fixed base (101). A geared motor (103) is fixedly installed on the other side of the top of the housing (1). The output end of the geared motor (103) passes through the housing (1) and is fixedly installed with a drive gear (104). A driven gear (105) is fixedly installed on the lower outside of the rotating tube (102), and the drive gear (104) and the driven gear (105) are meshed together. Its features are, Also includes: The bottom of the rotating tube (102) is connected to a diversion box (106), and two sets of spray bars (107) are symmetrically connected to the outside of the diversion box (106). A cover (108) is fixedly installed at the top inside the housing (1), and a sealing component (2) is provided on the lower outside of the rotating tube (102). The sealing assembly (2) includes an annular sponge (201) fixedly installed at the bottom of the cover (108), and two sets of mounting brackets (202) are symmetrically installed on the outer circumference of the annular sponge (201) at the bottom of the cover (108), and movable rods (203) are slidably connected to one side of the inner side of the two sets of mounting brackets (202). Among them, the top of the two sets of movable rods (203) is fixedly installed with movable rings (204), and the upper part of the two sets of movable rods (203) is fitted with telescopic springs (205), and the two ends of the telescopic springs (205) are fixedly connected to the movable rings (204) and the mounting brackets (202) respectively.

2. The spray disc sealing structure for a wall-climbing robot according to claim 1, characterized in that: Two sets of fixing rods (206) are symmetrically installed around the bottom of the movable ring (204), and triangular blocks (207) are fixedly installed at the bottom of both sets of fixing rods (206). A fixing ring (208) is fixedly installed outside the rotating tube (102) below the movable ring (204), and two sets of push rods (2081) are symmetrically installed around the top of the fixing ring (208).

3. The spray disc sealing structure for a wall-climbing robot according to claim 1, characterized in that: A cylinder (209) is fixedly installed on one side of the bottom of the cover (108), and a connecting pipe (210) is connected through the bottom of the cylinder (209). An annular pipe (211) is fixedly installed on the bottom of the cover (108) inside the annular sponge (201). The end of the connecting pipe (210) away from the cylinder (209) passes through the cover (108) and is connected through the annular pipe (211). Several nozzles are connected through the inner side of the annular pipe (211). An air inlet pipe (212) is connected through one side of the cylinder (209), and the end of the air inlet pipe (212) away from the cylinder (209) is connected through the shell (1).

4. The spray disc sealing structure for a wall-climbing robot according to claim 3, characterized in that: One-way valves are provided on the side of the connecting pipe (210) and the air inlet pipe (212) near the cylinder (209).

5. The spray disc sealing structure for a wall-climbing robot according to claim 3, characterized in that: A piston (214) is slidably connected to one side of the inner side of the cylinder (209), and a sliding rod (213) is fixedly installed on one side of the piston (214). The sliding rod (213) is slidably connected to the cylinder (209), and a return spring (215) is sleeved on the outer side of the sliding rod (213). One end of the return spring (215) is fixedly connected to the cylinder (209), and a movable block (216) is fixedly installed on the other end of the return spring (215). The movable block (216) is fixedly connected to the sliding rod (213).

6. The spray disc sealing structure for a wall-climbing robot according to claim 5, characterized in that: The rotating tube (102) is fixedly installed with several push blocks (217) inside the cover (108), and the push blocks (217) are slidably connected to the movable block (216).

7. The spray disc sealing structure for a wall-climbing robot according to claim 1, characterized in that: A through groove (109) is connected to one side of the bottom of the cover (108), and an annular groove (111) is provided inside the through groove (109). A sealing ring (110) is slidably connected inside the annular groove (111), and the sealing ring (110) is fixedly connected to the rotating tube (102).

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