Sealing structure of underwater cleaning robot

Abstract

The utility model provides a sealing structure of an underwater cleaning robot, which comprises a first sealing piece and a second sealing piece which are detachably connected, and when the sealing structure is assembled and sealed, a plurality of convex pieces arranged on the sealing structure are inserted into a plurality of grooves and form a plurality of gaps corresponding to the grooves; the gap is filled and sealed by any combination of sealant, a sealing gasket and a sealing ring, multiple times of sealing are carried out by arranging a plurality of grooves, the reliability of the sealing assembly is improved, and the sealing assembly is convenient to assemble and disassemble. The utility model further provides a sealing protection scheme for the devices in the underwater cleaning robot, and a plurality of sealing bins are arranged in the underwater cleaning robot to protect the devices needing to be sealed and protected in the underwater cleaning robot. And a plurality of grooves formed in the sealing structure and sealing materials arranged in the grooves are used for protecting the sealing bin component in a multi-layer manner, so that an effective waterproof protection effect is achieved on the sealing bin and devices of the underwater cleaning robot.

Description

Technical Field

[0001] The utility model relates to the field of robot manufacturing, and more specifically, to a sealing structure of an underwater cleaning robot. Background Art

[0002] As an emerging underwater cleaning tool, the underwater cleaning robot has the advantages of remote control and automation. However, it needs to be immersed in water for a long time when in use. The motors, wires and other devices installed on it need to be fully waterproofed to ensure the safe operation of the underwater cleaning robot.

[0003] At present, the waterproof structure commonly used in underwater cleaning robots is achieved by using a silicone rubber sealing ring on the outer shell of the device to be protected or by pouring glue into the inner shell of the device, but the above two methods still have some disadvantages in actual use: when using a sealing ring for sealing, the sealing ring is exposed to water, and after a period of use, it is easy to cause the sealing ring to fail due to aging of the sealing ring material and corrosion of the water environment, which is not conducive to the use of underwater cleaning robots that are immersed in water for a long time. When the method of pouring glue into the outer shell is used for sealing, the sealed devices in the underwater cleaning robot are more likely to face the problem of difficult maintenance. When some parts fail, the entire device may need to be replaced to achieve the purpose of maintenance, which greatly increases the maintenance cost. Therefore, in the actual application of products such as underwater cleaning robots that operate underwater for a long time, an efficient and low-cost sealing method and its corresponding sealing structure are needed. Utility Model Content

[0004] The utility model aims to overcome at least one defect of the above-mentioned prior art and provides a sealing structure of an underwater cleaning robot.

[0005] The technical solution adopted by the utility model is to provide a sealing structure of an underwater cleaning robot, comprising a first sealing member and a second sealing member that are detachably connected, and the connection surfaces of the first sealing member and the second sealing member are clearance-matched; the first sealing member comprises at least two protrusions protruding toward the second sealing member, and the second sealing member is provided with at least two grooves corresponding to the protrusions;

[0006] When the first sealing member and the second sealing member are assembled and sealed, the gap is filled with one or more of a sealant, a sealing gasket, and a sealing ring.

[0007] In the present technical solution, the sealing structure is composed of at least a first seal and a second seal that are detachably connected. The first seal and the second seal can be connected and fixed and can be freely detached, and the connecting surfaces of the first seal and the second seal are clearance-matched; specifically, the connection method of the first seal and the second seal can be a snap connection, a bolt connection and other methods. On the connecting surfaces of the two seals, the first seal includes at least two protrusions protruding toward the second seal, and the second seal is provided with at least two grooves corresponding to the protrusions. When the two seals are connected and fixed, the protrusions are inserted into the grooves and multiple gaps that can be filled with sealing materials are retained between the first seal and the second seal. The gaps formed by the two seals are filled with one or more of sealants, sealing pads and sealing rings, and the gaps are sealed multiple times, thereby forming a stable sealed connection as a whole sealing structure through multiple sealing, thereby improving the sealing performance and reliability of the sealing structure. By utilizing the fixing effect between the two seals and artificially controlling the shape, size and position of the gap between the two seals, the gap can be effectively filled by only using a sealing gasket, a sealing ring and a sealant, without introducing sealing materials into the device to be sealed and protected. The connection method is simple and reliable, and is convenient for assembly and disassembly. At the same time, it also better protects the device to be sealed and protected. Further, when the sealing structure is used in an underwater environment, the sealing structure is usually applied to the outside of the device to be protected when it is set, so that one side of the sealing structure faces the device to be protected and the other side is in contact with water. Since the sealing structure includes at least two grooves, only the sealing material filled in the groove on the side close to the water is exposed to the water, thereby effectively protecting the sealing material in the groove on the side close to the protected device, thereby improving the service life of the sealing material, and also improving the performance and reliability of the sealing structure when used underwater, so that the sealing structure provided in the technical solution is more suitable for products such as underwater cleaning robots that operate underwater for a long time.

[0008] Preferably, in order to facilitate the continuous filling of sealant into the gap so that the two seals are firmly connected and sealed, the protrusion is inserted into the groove and a connected gap is retained, and the gap is W-shaped. The W-shaped gap formed increases the contact area between the seal and sealing materials such as sealing gaskets, sealing rings and sealant, further improving the sealing performance and reliability of the sealing structure.

[0009] Furthermore, the sealing structure is also provided with a fastener. When the first seal and the second seal are assembled and sealed, the fastener is arranged outside the gap and is used to tightly fix the first seal and the second seal. Specifically, the fastener is arranged outside the gap. Since there are multiple grooves on the second seal and a curved gap is formed after the two seals are combined and connected, when the gap is filled with sealing material, the fastener is arranged to further press the two seals, thereby improving the connection stability between the two seals and the sealing performance of the sealing material. In particular, when a sealing gasket and a sealing ring are used to fill the gap, due to the elasticity of the sealing gasket and the sealing ring themselves, the sealing material can be better filled in the gap by additional compression through the fastener, thereby improving the overall sealing performance of the sealing structure. Preferably, the fastener can be a threaded fastener that runs through the first seal and the second seal.

[0010] Preferably, when a sealing gasket is used to fill part or all of the gap between two sealing members, the sealing gasket is designed to completely match the shape of the gap it fills, so that the sealing gasket can fill the gap to the maximum extent, thereby improving the overall sealing performance of the sealing structure.

[0011] Preferably, when a sealing ring is used to fill part or all of the gap between the two sealing members, the sealing ring is arranged at the bottom of the groove, and the cross-section of the sealing ring is circular or elliptical.

[0012] Preferably, when a sealant is used to fill part or all of the gap between two sealing members, the sealant is selected from one or more of silicone sealant, polyurethane sealant, polysulfide sealant, acrylic sealant, anaerobic sealant, epoxy sealant, butyl sealant, chloroprene sealant, PVC sealant and asphalt sealant.

[0013] Preferably, the groove provided on the second sealing member can be configured as a trapezoidal groove that is wide at the top and narrow at the bottom. Specifically, when the groove is a trapezoidal groove that is wide at the top and narrow at the bottom, when the two sealing members are connected and pressed, the protrusion can be inserted into the groove and connected to be clamped as the sealing members are pressed, thereby reducing the size of the gap formed therein, thereby improving the overall stability and reliability of the sealing structure. Further preferably, all the grooves provided on the second sealing member can be configured as trapezoidal grooves at the same time, or partially as trapezoidal grooves.

[0014] The present technical solution also provides an underwater cleaning robot, comprising a main body, wherein a plurality of sealed chambers are arranged in the main body, wherein the sealed chambers are composed of an upper cover and a lower box, and wherein the sealed chambers are assembled and sealed by a sealing structure as provided in the present technical solution, and a closed cavity is formed inside the sealed chambers; the first sealing member is arranged at the edge of the upper cover, and the second sealing member is arranged at the edge of the lower box.

[0015] In the present technical scheme, a plurality of sealed chambers are provided to protect the various components that need to be sealed and protected in the underwater cleaning robot. Each sealed chamber is composed of an upper cover and a lower box, wherein the upper cover and the lower box are connected and sealed by a sealing structure to form an internal closed cavity. Specifically, a first seal is provided at the edge of the upper cover, and a second seal is provided at the edge of the lower box, so as to facilitate the connection and disassembly between the upper cover and the lower box. The sealing chamber components are provided with multi-layer protection by the multiple grooves provided in the sealing structure and the sealing materials provided therein, thereby playing an effective waterproof role. At the same time, by providing multiple sealed chambers, the multi-layer protection effect of the sealing structure can be applied to all the component structures that need to be waterproof in the entire underwater cleaning robot, which is safe, stable and reliable; at the same time, the sealing structure is convenient for assembly and disassembly, and the sealing of the sealed chamber does not affect the internal components, so that the underwater cleaning robot can be conveniently disassembled and repaired when its components fail without replacing the entire component, which is simple to operate and economical and practical. Preferably, in order to make the sealed chamber adapt to the installation connection of the components required for sealing and protecting the underwater cleaning robot, the upper cover and the lower box can be formed into a sealed chamber by a combination of top connection, side connection or bottom connection through a sealing component.

[0016] Furthermore, the first seal is integrally provided with the upper cover, and the second seal is integrally provided with the lower box. In order to further improve the airtightness of the sealed chamber and minimize the formation of redundant nodes susceptible to aging on the sealed chamber assembly, the first seal and the second seal are integrally provided with the upper cover and the lower box.

[0017] Furthermore, the top plane of the second sealing member is inclined, and the top plane of the second sealing member on a side close to the enclosed cavity is higher than that on a side away from the enclosed cavity.

[0018] In the present technical solution, since multiple grooves are used between the two seals, after the sealing chamber is sealed by the sealing structure, the erosion effect of water on the sealing material needs to be gradually from the outer edge to the inside. The top plane of the second seal is inclined, and the top plane of the second seal close to the closed cavity is higher than the side away from the closed cavity, thereby slowing down the speed of water affecting the sealing material. Even if the sealing material in the outer groove fails, it will not immediately affect the reliability of the sealing material in the inner groove, thereby improving the overall waterproof performance and service life of the sealing chamber and the underwater cleaning robot.

[0019] Preferably, the grooves provided on the second sealing member are separated by raised ribs, and the top plane of the raised ribs provided between the two grooves is higher than the other edge of the groove on the side away from the enclosed cavity, and lower than the other edge of the groove on the side close to the enclosed cavity. The top of the grooves in the sealing structure gradually rises from the outside to the inside, so that the influence of water on the sealing materials filled in each groove is relatively independent, and the speed of water affecting the sealing materials in each groove is slowed down to the maximum, further improving the waterproof performance and service life of the sealing chamber and the underwater cleaning robot as a whole.

[0020] Furthermore, when multiple types of sealants, sealing rings and sealing gaskets are used to fill the gap at the same time, the sealants are preferably used to fill the grooves on the side away from the closed cavity. When using a combination of sealants, sealing rings, and / or sealing gaskets for sealing, the sealing rings and / or sealing gaskets can be first filled into the grooves close to the closed cavity, and the two seals can be clamped and pressed to seal the sealing structure once, and then the sealant is filled into the outer groove away from the closed cavity. Since the sealant can deform with the shape of the sealing surface, is not easy to flow and has a certain degree of adhesion, the two seals are further connected and fixed by the sealant, and the sealing structure is also sealed for a second time, thereby improving the overall fixity and sealing of the sealing structure.

[0021] The beneficial effects of the utility model are:

[0022] 1. By utilizing the fixing effect between the two seals and the curved gap formed between the two seals, the gap can be effectively filled by only using a sealing gasket, a sealing ring and a sealant, without introducing sealing materials into the device to be sealed and protected. The connection method is simple, easy to assemble and disassemble, and at the same time, the device to be sealed and protected is better protected; further, the two seals contain at least two grooves, and the corresponding gaps are increased by introducing sealing materials such as sealing gaskets, sealing rings and sealants into the seals multiple times to form multiple seals, thereby improving the sealing performance and reliability of the sealing structure. Further, when the sealing structure is used in an underwater environment, the sealing structure is usually applied to the outside of the device to be protected when it is set, so that one side of the sealing structure faces the device to be protected and the other side is in contact with water. Since the sealing structure includes at least two grooves, only the sealing material filled in the groove on the side close to the water is exposed to the water, thereby effectively protecting the sealing material in the groove on the side close to the device to be protected, and improving the service life of the sealing material. At the same time, it also improves the performance and reliability of the sealing structure when used underwater, making the sealing structure more suitable for products such as underwater cleaning robots that operate underwater for a long time.

[0023] 2. Several sealed chambers are provided to protect various components that need sealed protection in the underwater cleaning robot. Multiple grooves provided in the sealing structure and the sealing materials provided therein provide multi-layer protection for the sealed chamber components, thereby playing an effective waterproof role. At the same time, by providing multiple sealed chambers, the multi-layer protection function of the sealing structure can be applied to all component structures that need waterproofing in the entire underwater cleaning robot, which is safe, stable and reliable. At the same time, the sealing structure is convenient for assembly and disassembly, and the sealing of the sealing chamber does not affect the internal components, so that the underwater cleaning robot can be easily disassembled and repaired when its components fail without the need for overall replacement. The operation is simple and economical. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is one of the cross-sectional schematic diagrams of the sealing structure of an underwater cleaning robot of the utility model.

[0025] Figure 2 This is the second cross-sectional schematic diagram of the sealing structure of an underwater cleaning robot of the utility model.

[0026] Figure 3 The utility model is a schematic diagram of the structure of a sealed compartment in an underwater cleaning robot.

[0027] Figure 4 The utility model is a cross-sectional schematic diagram of a sealed compartment in an underwater cleaning robot.

[0028] Reference numerals: first sealing member 1 , protruding member 11 , second sealing member 2 , groove 21 , protruding rib 22 , sealant 3 , sealing ring 4 , upper cover 100 , lower box 200 . DETAILED DESCRIPTION

[0029] The drawings of the present invention are only used for illustrative purposes and cannot be construed as limiting the present invention. In order to better illustrate the following embodiments, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0030] Example 1

[0031] like Figure 1-Figure 2As shown, the present embodiment provides a sealing structure of an underwater cleaning robot, comprising a first sealing member 1 and a second sealing member 2 which are detachably connected, and the connection surfaces of the first sealing member 1 and the second sealing member 2 are clearance-matched; specifically, the connection method of the first sealing member 1 and the second sealing member 2 can be a snap connection, a bolt connection, or the like. On the connection surfaces of the two seals, the first sealing member 1 comprises at least two protrusions 11 protruding toward the second sealing member 2, and the second sealing member 2 is provided with at least two grooves 21 corresponding to the protrusions 11. When the two seals are connected and fixed, the protrusions 11 are inserted into the grooves 21 and a connected, W-shaped gap is retained between the first sealing member 1 and the second sealing member 2. The gap is sealed by filling the W-shaped gap formed by the two seals with one or more of sealant, sealing gasket, and sealing ring to form a sealing structure with a stable sealing connection.

[0032] Preferably, the sealing structure is also provided with a fastener. When the first sealing member 1 and the second sealing member 2 are assembled and sealed, the fastener is arranged outside the gap and is used to tightly fix the first sealing member 1 and the second sealing member 2. In particular, when a sealing gasket and a sealing ring are used to fill the gap in the gap, due to the elasticity of the sealing gasket and the sealing ring themselves, the additional compression of the fastener can make the sealing material fill the gap better, thereby improving the sealing performance of the sealing structure as a whole. Preferably, the fastener can be a threaded fastener that penetrates the first sealing member 1 and the second sealing member 2.

[0033] In another way, when the first sealing member 1 and the second sealing member 2 are assembled and sealed, in order to make them tightly fixed to each other, the first sealing member 1 and the second sealing member 2 are directly bonded by glue, or ultrasonic bonding is used, which also achieves the effect of tightening and waterproofing.

[0034] Preferably, when a sealing gasket is used to fill part or all of the gap between two sealing members, the sealing gasket is designed to completely match the shape of the gap it fills, so that the sealing gasket can fill the gap to the maximum extent.

[0035] Preferably, when a sealing ring is used to fill part or all of the gap between the two sealing members, the sealing ring is arranged at the bottom of the groove 21, and the cross section of the sealing ring is circular or elliptical.

[0036] Preferably, when a sealant is used to fill part or all of the gap between two sealing members, the sealant is selected from one or more of silicone sealant, polyurethane sealant, polysulfide sealant, acrylic sealant, anaerobic sealant, epoxy sealant, butyl sealant, chloroprene sealant, PVC sealant and asphalt sealant.

[0037] Preferably, the groove 21 provided on the second sealing member 2 can be configured as a trapezoidal groove that is wide at the top and narrow at the bottom. Specifically, when the groove 21 is a trapezoidal groove that is wide at the top and narrow at the bottom, when the two sealing members are connected and pressed, the protrusion 11 can be inserted into the groove 21 for connection and can be clamped as the sealing members are pressed, thereby reducing the size of the gap formed therein, thereby improving the stability and reliability of the overall sealing structure. Further preferably, all the grooves 21 provided on the second sealing member 2 can be configured as trapezoidal grooves at the same time, or partially as trapezoidal grooves.

[0038] Example 2

[0039] like Figure 3-Figure 4 As shown, this embodiment provides an underwater cleaning robot, including a body, a plurality of sealed chambers are arranged in the body, the sealed chambers are composed of an upper cover 100 and a lower box 200, the sealed chambers are assembled and sealed by the sealing structure provided in Example 1, and a closed cavity is formed inside the sealed chamber; the first sealing member 1 is arranged at the edge of the upper cover 100, and the second sealing member 2 is arranged at the edge of the lower box 200. The plurality of grooves arranged in the sealing structure and the sealing materials arranged therein provide multi-layer protection for the sealed chamber components, thereby playing an effective waterproof role. At the same time, by providing a plurality of sealed chambers, the multi-layer protection function of the sealing structure can be applied to all parts and components that need to be waterproof in the entire underwater cleaning robot, which is safe, stable and reliable.

[0040] Furthermore, the first seal 1 is integrally provided with the upper cover 100, and the second seal 2 is integrally provided with the lower box 200. In order to further improve the airtightness of the sealed chamber and minimize the formation of redundant aging nodes on the sealed chamber assembly, the first seal 1 and the second seal 2 are integrally provided with the upper cover 100 and the lower box 200.

[0041] Furthermore, the top plane of the second sealing member 2 is inclined, and the top plane of the second sealing member 2 close to the enclosed cavity is higher than the top plane of the second sealing member 2 far from the enclosed cavity, which slows down the speed at which water affects the sealing material. Even if the sealing material in the outer groove fails, it will not immediately affect the reliability of the sealing material in the inner groove.

[0042] Preferably, the grooves provided on the second sealing member 2 are separated by the protruding ribs 22, and the top plane of the protruding ribs provided between the two grooves is higher than the other edge of the groove on the side away from the closed cavity, and lower than the other edge of the groove on the side close to the closed cavity. The top of the groove in the sealing structure rises gradually from the outside to the inside, so that the influence of water on the sealing material filled in each groove is relatively independent, and the speed of water affecting the sealing material in each groove is slowed down to the maximum, further improving the waterproof performance and service life of the sealing chamber and the underwater cleaning robot as a whole.

[0043] Furthermore, when multiple types of sealant 3, sealing ring 4 and sealing gasket are used to fill the gap simultaneously, sealant 3 is preferably used to fill the groove away from the closed cavity.

[0044] In this embodiment, two grooves are provided in the second sealing member 2, and when the two sealing members are combined and connected, the gap formed is sealed by using sealant 3 and sealing ring 4. Specifically, the sealing ring 4 is first filled into the groove close to the side of the closed cavity, and the two sealing members are clamped and pressed to seal the sealing structure once. Then, the sealant 3 is filled into the outer groove away from the closed cavity. Since the sealant 3 can be deformed according to the shape of the sealing surface, is not easy to flow and has a certain adhesion, the two sealing members are further connected and fixed by the sealant 3, and the sealing structure is also sealed for the second time, thereby improving the overall fixity and sealing of the sealing structure.

[0045] Example 3

[0046] This embodiment also provides an underwater cleaning robot, which differs from Embodiment 2 in that three grooves are provided in the second sealing member, and when the two sealing members are combined and connected, the gap formed is sealed by using sealant, sealing rings and sealing gaskets. Specifically, the sealing rings and sealing gaskets are respectively filled into the two grooves close to the closed cavity, and then the two sealing members are clamped and pressed to seal the sealing structure once. Subsequently, the sealant is filled into the outermost groove away from the closed cavity. Since the sealant can be deformed with the shape of the sealing surface, is not easy to flow and has a certain adhesion, the two sealing members are further connected and fixed by the sealant, and the sealing structure is also sealed for the second time, thereby improving the overall fixity and sealing of the sealing structure.

[0047] Obviously, the above embodiments of the utility model are only examples for clearly explaining the technical solution of the utility model, and are not intended to limit the specific implementation methods of the utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the claims of the utility model shall be included in the protection scope of the claims of the utility model.

Claims

1. A sealing structure of an underwater cleaning robot, characterized in that: The invention comprises a first sealing member and a second sealing member which are detachably connected, and the connection surfaces of the first sealing member and the second sealing member are clearance-matched; the first sealing member comprises at least two protrusions protruding toward the second sealing member, and the second sealing member is provided with at least two grooves, and the grooves are arranged corresponding to the protrusions; When the first sealing member and the second sealing member are assembled and sealed, the gap is filled with one or more of a sealant, a sealing gasket, and a sealing ring.

2. The sealing structure according to claim 1, characterized in that: The protrusion is inserted into the groove and a communicating gap is reserved, and the gap is W-shaped.

3. The sealing structure according to claim 1, characterized in that: It also includes a fastener, which is arranged outside the gap when the first seal and the second seal are assembled and sealed, and is used to connect and fix the first seal and the second seal.

4. The sealing structure according to any one of claims 1 to 3, characterized in that: The sealing gasket completely matches the shape of the gap it fills.

5. The sealing structure according to any one of claims 1 to 3, characterized in that: The groove is configured as a trapezoidal groove that is wider at the top and narrower at the bottom.

6. An underwater cleaning robot, comprising a main body, wherein a plurality of sealed chambers are arranged in the main body, wherein the sealed chambers are composed of an upper cover and a lower box, wherein: The sealed chamber is sealed by assembling the sealing structure as described in any one of claims 1 to 5, and a closed cavity is formed inside the sealed chamber; the first sealing member is arranged on the edge of the upper cover, and the second sealing member is arranged on the edge of the lower box.

7. The underwater cleaning robot according to claim 6, characterized in that: The first sealing member is integrally provided with the upper cover, and the second sealing member is integrally provided with the lower box.

8. The underwater cleaning robot according to any one of claims 6 to 7, characterized in that: The top plane of the second sealing member is inclined, and the top plane of the second sealing member on a side close to the sealed cavity is higher than that on a side away from the sealed cavity.

9. The underwater cleaning robot according to claim 8, characterized in that: The grooves arranged on the second sealing member are separated by raised ribs, and the top plane of the raised ribs arranged between the two grooves is higher than the other edge of the groove away from the closed cavity and lower than the other edge of the groove close to the closed cavity.

10. The underwater cleaning robot according to claim 9, characterized in that: When multiple types of sealant, sealing ring and sealing gasket are used to fill the gap at the same time, the sealant is preferably used to fill the groove away from the closed cavity.

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