A plug cable sealing device for a robot

Abstract

The utility model discloses a kind of plug cable sealing devices for robot, belong to industrial robot cable protection technical field, including fixed shell, sealing element, sealing tear and tear layer limiting piece, fixed shell is set up in pairs, two fixed shell are detachably connected, sealing element is inserted in fixed shell inside, sealing element is provided with through-hole, multilayer sealing tear is inserted in through-hole, tear layer limiting piece is set up in pairs, and it is set below sealing element, tear layer limiting piece top and sealing element bottom abut, tear layer limiting piece both ends are slid and lockablely connected in fixed shell inside. Solve the difficulty of adaptation caused by cable line diameter variety in robot cable sealing structure, easy to loosen failure under vibration environment and the problem such as insufficient protection under harsh working conditions. With self-adapting hand tear adjustment, anti-displacement locking and high environmental adaptability and other advantages.

Description

Technical Field

[0001] This utility model relates to the field of industrial robot cable protection technology, specifically to a sealing device for robot plug cables. Background Technology

[0002] With the widespread application of robots in outdoor, underwater, and chemical environments, the sealing performance of their cables at the connection points is becoming increasingly important. A reliable sealing device can not only effectively prevent the intrusion of substances such as moisture, dust, and oil, and prevent short circuits, corrosion, and signal interference, but also provide necessary mechanical protection for the connection points, resisting physical impacts and continuous vibrations.

[0003] Traditional fixed-diameter rubber seals require multiple specifications to accommodate different wire diameters, resulting in poor compatibility and cumbersome inventory management. Injection sealing, on the other hand, is complex to operate and time-consuming to cure. Especially when on-site adjustments are needed, installers often have to use tools to cut the seals, easily creating burrs and damage, compromising seal integrity and leaving potential leakage hazards. Furthermore, under dynamic robot operating conditions, traditional structures are prone to seal loosening due to vibration or cable pulling, making it difficult to maintain long-term effective sealing protection and failing to meet the flexible and highly reliable application requirements of modern robots.

[0004] Therefore, how to provide a sealing device for plug cables for robots to overcome the defects of existing structures is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] Therefore, this utility model provides a plug cable sealing device for robots to solve the problems of limited cable specifications and cumbersome installation and operation caused by the non-adjustable diameter of the sealing element and the lack of a fast and non-destructive adjustment mechanism in the existing technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: This utility model discloses a sealing device for a robot plug cable, comprising: The fixed housings are arranged in pairs and are detachably connected to each other. A sealing element is inserted into the inner side of each fixed housing, and the sealing element has a through hole. A multi-layer sealing peel-off adhesive is inserted into the through hole; A pair of tear-off layer limiting members are provided below the seal. The top of the tear-off layer limiting member abuts against the bottom of the seal. Both ends of the tear-off layer limiting member are slidably and lockably connected to the fixed housing.

[0007] In one possible implementation, a tear groove is provided between adjacent sealing peel-off patches.

[0008] In one possible implementation, the fixed housing includes: The outer shell body has a limiting frame extending from its outer wall. The limiting frames are arranged in pairs, with the two limiting frames arranged vertically on both sides of the seal. The slide rails are arranged in pairs and are formed on the side wall of the limiting frame in the horizontal direction. The two ends of the tear-off layer limiting member are slidably connected to the slide rail. The slide grooves are arranged in pairs and are formed at the bottom of the slide rail. Several limiting grooves are formed on the inner wall of the slide grooves. The slide grooves and the limiting grooves are used to limit the position of the tear-off layer limiting member. The first connection hole is formed on the top of the outer casing body; The second connection hole is formed on the side wall of the outer casing.

[0009] In one possible implementation, the tear-off layer retainer includes: A pressure rod has sliders fixedly connected to both ends, and the sliders are slidably connected to the slide rail. The top of the slider is provided with an annular groove, and the top of the slider is also provided with a recess, the recess being disposed on the outside of the annular groove; A limiting protrusion is provided on the inner side of the annular groove, and a baffle is fixedly connected to the top of the limiting protrusion. A button assembly is inserted into the annular groove, and a limiting block is fixedly connected to the outer wall of the button assembly. The limiting block is positioned above the groove.

[0010] In one possible implementation, the button assembly includes: A sleeve is inserted into the annular groove at its bottom, a round button is installed at the top of the sleeve, and a protrusion is integrally formed on the inner wall of the bottom of the sleeve, with the top of the protrusion abutting against the baffle. A spring is inserted into the sleeve, with one end of the spring abutting against the top of the baffle and the other end of the spring abutting against the bottom of the round button.

[0011] In one possible implementation, the seal is made of nylon material.

[0012] This utility model has the following advantages: First, its tool-free adjustment of the sealing orifice diameter via a hand-tearable sealing strip and pre-set tear groove design enhances the device's adaptability and ease of operation. Second, the combination of elastic compensation from nylon seals and rigid compression from the metal shell improves the device's structural stability and sealing performance. Multi-layered sealing strips, along with anti-displacement design of the tear-layer limiting components, ensure the reliability and stability of the device's protection. Furthermore, the wear-resistant and corrosion-resistant properties of the metal shell, combined with the wide temperature range, high flame retardancy, and resistance to compressive deformation of the nylon seals, enable the device to adapt to various harsh industrial environments. Finally, the detachable structure design ensures ease of maintenance and reusability, while also improving the overall economic efficiency of use. Attached Figure Description

[0013] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0014] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0015] Figure 1 A perspective view of a robot plug cable sealing device provided by this utility model; Figure 2 A perspective view of the fixed outer shell, sealing element, and sealing peel-off sticker provided for this utility model; Figure 3 A perspective view of the paired fixed outer shell provided by this utility model; Figure 4 A perspective view of a fixed outer shell provided for this utility model; Figure 5 A bottom perspective view of the fixed outer shell provided by this utility model; Figure 6 A bottom sectional view of the fixed outer shell provided by this utility model; Figure 7 Provided by this utility model Figure 6 Enlarged view of a section at point A in the middle; Figure 8 A perspective view of the tear-off layer limiting component provided by this utility model; Figure 9 Provided by this utility model Figure 8 Enlarged view of a section at point B in the middle; Figure 10 A cross-sectional view of the tear-off layer limiting component provided by this utility model; Figure 11 A perspective view of the fixed outer shell and the tear-off layer limiting component provided for this utility model; Figure 12 Cross-sectional view of the fixed outer shell and the tear-off layer limiting component provided by this utility model; Figure 13 Provided by this utility model Figure 12 Enlarged view of a section at point C; In the diagram: 1. Fixed outer shell; 11. Outer shell body; 12. First connecting hole; 13. Limiting frame; 14. Second connecting hole; 15. Slide rail; 16. Slide groove; 17. Limiting groove; 2. Seal; 3. Sealing tear-off sticker; 4. Tear-off layer limiting component; 41. Pressure rod; 42. Slider; 43. Annular groove; 44. Groove; 45. Press button assembly; 451. Sleeve; 452. Round button; 453. Spring; 454. Protrusion; 46. Limiting block; 47. Limiting protrusion; 48. Baffle. Detailed Implementation

[0016] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] Please refer to Figures 1-13 The present invention discloses a sealing device for a robot plug cable, as follows: Figure 1 , Figure 2 and Figure 11 It includes a fixed outer shell 1, a sealing element 2, a sealing tear-off sticker 3, and a tear-off layer limiting element 4. The fixed outer shells 1 are arranged in pairs and the two fixed outer shells 1 are detachably connected to each other. The sealing element 2 is inserted into the inner side of the fixed outer shell 1. The sealing element 2 has a through hole. The multi-layer sealing tear-off sticker 3 is inserted into the through hole. The tear-off layer limiting element 4 is arranged in pairs and is located below the sealing element 2. The top of the tear-off layer limiting element 4 abuts against the bottom of the sealing element 2. The two ends of the tear-off layer limiting element 4 are slidably and lockably connected to the fixed outer shell 1.

[0018] The fixed outer casing 1 is the main protective component of the device. It is preferably made of metal and not only provides convenience for cable installation and maintenance through its detachable splicing structure, but also serves as a barrier against external physical impacts for the seal 2 and the sealing peel-off patch 3. Simultaneously, the first connecting hole 12 on its top securely fixes the entire device to the equipment. The seal 2 is preferably made of improved nylon. The paired seals 2 press against each other, reducing gaps and thus better wrapping the cable. The central through-hole provides installation space for the sealing peel-off patch 3. The elasticity of the nylon material compensates for minor gaps under pressure, resulting in better physical adhesion and improved sealing.

[0019] The design of the tightly fitting, multi-layered annular sealing peel-off sticker 3 with pre-set tear grooves enables a sealing mechanism aperture adjustment mechanism. By manually peeling off these sealing peel-off stickers 3, the aperture of the through hole of the sealing element 2 can be quickly adjusted without any tools to accommodate cables of different specifications. Its nylon material ensures a smooth edge after peeling, thus forming a tight seal with the cable sheath. The peel-off layer limiting member 4 slides and locks into the sliding groove mechanism of the fixed housing 1 through the pressure button assembly 45 and the limiting block 46 at both ends. Its function is to hold the bottom of the sealing peel-off sticker 3 against it, effectively preventing the sealing peel-off sticker 3 from being accidentally pulled out due to friction when the cable is pulled, ensuring the reliability and stability of the sealing state.

[0020] In one specific embodiment, a tear groove is provided between adjacent sealing peel-off patches 3. The pre-set tear groove serves as an invisible dividing line between adjacent sealing peel-off patches 3, allowing users to peel off excess layers by hand along the groove without the need for tools, thereby adjusting the diameter of the sealing inner hole to accommodate cables of different specifications.

[0021] In a specific embodiment, such as Figures 3-7 The fixed outer shell 1 includes an outer shell body 11, a first connecting hole 12, a limiting frame 13, a second connecting hole 14, a slide rail 15, a slide groove 16, and a limiting slot 17. The outer wall of the outer shell body 11 extends to the limiting frame 13. The limiting frames 13 are arranged in pairs, and the two limiting frames 13 are arranged vertically on both sides of the sealing member 2. The slide rails 15 are arranged in pairs and are opened on the side walls of the limiting frames 13 in the horizontal direction. The two ends of the tear-off layer limiting member 4 are slidably connected to the slide rails 15. The slide grooves 16 are arranged in pairs and are opened at the bottom of the slide rails 15. Several limiting slots 17 are opened on the inner wall of the slide grooves 16. The slide grooves 16 and the limiting slots 17 are used to limit the position of the tear-off layer limiting member 4. The first connecting hole 12 is opened on the top of the outer shell body 11, and the second connecting hole 14 is opened on the side wall of the outer shell body 11.

[0022] The outer casing 11 provides support and protection for the entire device. The first connecting hole 12 at its top secures the entire device to an external device via bolts, preventing displacement during use. The second connecting hole (14) is used to secure the paired outer casings 1 together, allowing for detachable connection and easy installation and maintenance. Pairs of limiting frames 13 extending from the inner wall of the outer casing 11 accommodate and limit the sealing element 2 from both the top and bottom, ensuring it is in the correct working position.

[0023] Meanwhile, the slide rail 15 and the bottom slide groove 16 together form the track for the horizontal movement of the tear-off layer limiting member 4. The slide rail 15 is set to be wider at the front and narrower at the back. The slider 42 slides in the wider channel of the slide groove 16, and the part where the slider 42 is connected to the pressure rod 41 is connected to the pressure rod 41 through the narrower channel.

[0024] The multiple limiting grooves 17 in the slide groove 16 cooperate with the limiting blocks 46 on the outer wall of the pressure button assembly 45, so that the tear-off layer limiting member 4 can be locked after sliding to any desired position, thereby ensuring that it is tightly pressed against the sealing tear-off sticker 3 and preventing it from being pulled out along with the cable due to friction, thereby improving the sealing stability of the device.

[0025] In a specific embodiment, such as Figures 8-13 The tear-off layer limiting component 4 includes a pressure rod 41, a slider 42, an annular groove 43, a groove 44, a pressing button assembly 45, a limiting block 46, a limiting protrusion 47, and a baffle 48. The two ends of the pressure rod 41 are fixedly connected to the slider 42, which is slidably connected to the slide rail 15. The top of the slider 42 has an annular groove 43 and a groove 44. The groove 44 is located outside the annular groove 43. The inner side of the annular groove 43 has a limiting protrusion 47, and the top of the limiting protrusion 47 is fixedly connected to the baffle 48. The pressing button assembly 45 is inserted into the annular groove 43, and the outer wall of the pressing button assembly 45 is fixedly connected to the limiting block 46, which is located above the groove 44.

[0026] The sliders 42, fixed at both ends of the pressure rod 41, are embedded in the slide rail 15, allowing the entire tear-off layer limiting member 4 to slide horizontally along the rail. The annular groove 43 at the top of the slider 42 is used to accommodate and limit the movement trajectory of the pressure button assembly 45.

[0027] In the locked state, spring 453 is in operation, using its own elastic force to lift the pressure button assembly 45. The cooperation between the protrusion 454 and the baffle prevents the pressure button assembly 45 from disengaging from the limiting protrusion 47 and the annular groove 43. At this time, the limiting block 46 is precisely engaged in a limiting groove 17. The limiting groove 17 controls the limiting block 46 to prevent displacement due to force, which in turn controls the slider 42 to prevent displacement, and the slider 42 controls the pressure rod 41 to prevent displacement.

[0028] When the position of the tear-off layer limiting member 4 needs to be adjusted, press the pressing button assembly 45. The pressing button assembly 45, along with the limiting block 46, moves downward along the trajectory of the annular groove 43 and the limiting protrusion 47 until the limiting block 46 falls into the groove 44. At this time, the limiting block 46 will no longer interfere with the movement of the slider 42, thereby pushing the tear-off layer limiting member 4 to slide in the slide rail 15 and the slide groove 16. When the specified position is reached, release the pressing button assembly 45, and it will return to the locked state under the action of the spring 453.

[0029] To ensure that the button assembly 45 does not shift when pressed down, the limiting protrusion 47 and the baffle 48 fixed on the top of the annular groove 43 cooperate with the protrusion 454 and spring 453 in the button assembly 45 to convert the pressing action into the vertical expansion and contraction of the limiting block 46, so that the pressure rod 41 presses against the sealing peel-off sticker 3 above, preventing it from shifting and falling off.

[0030] In a specific embodiment, such as Figure 10 The button assembly 45 includes a sleeve 451, a round button 452, a spring 453, and a protrusion 454. The bottom of the sleeve 451 is inserted into the annular groove 43, and the round button 452 is installed on the top of the sleeve 451. The protrusion 454 is integrally formed on the inner wall of the bottom of the sleeve 451. The top of the protrusion 454 abuts against the baffle 48. The spring 453 is inserted into the sleeve 451. One end of the spring 453 abuts against the top of the baffle 48, and the other end of the spring 453 abuts against the bottom of the round button 452.

[0031] The bottom of the sleeve 451 is inserted into the annular groove 43, where a spring 453 provides elastic force. One end of the spring abuts against the top round button 452, and the other end abuts against the fixed baffle 48. When the round button 452 is pressed, the force is transmitted through the sleeve 451, compressing the spring 453 and causing the entire assembly to move downward. The integrally formed protrusion 454 on the inner wall of the bottom of the sleeve 451 cooperates with the baffle 48 on the limiting protrusion 47, guiding the sleeve 451 along a vertical trajectory without deviation and preventing it from completely dislodging from the annular groove 43. When the round button 452 is released, the compressed spring 453 releases its elastic force, pushing the round button 452 and the sleeve 451 to reset as a whole, thereby driving the limiting block 46 to complete the locking action.

[0032] In one specific embodiment, seal 2 is made of nylon. Throughout use, the unique balance of rigidity and toughness of nylon allows the user to easily peel off the seal sticker 3 completely along the tear groove during manual adjustment, avoiding burrs or breakage, thus ensuring a tight, gapless initial seal with the cable sheath. Subsequently, during the insertion and tightening of seal 2 into the fixed housing, the elastic recovery properties of nylon effectively compensate for the minute gaps between the cable and the seal's through-hole, combined with the pressure provided by the metal housing, preventing the intrusion of water, dust, and other media. Furthermore, the inherent high and low temperature resistance, compression set resistance, high flame retardancy, and chemical corrosion resistance of nylon ensure that seal 2 maintains its shape stability and sealing performance over a long period in the robot's complex operating environment (such as outdoors, in environments with large temperature differences, and where oil or vibration may occur), thereby supporting the entire device to achieve the expected protection level and service life.

[0033] The usage process of this utility model embodiment is as follows: First, based on the diameter of the cable to be sealed, manually peel off the corresponding sealing peel-off sticker 3 until the inner diameter of the remaining sealing peel-off sticker 3 is the same as or slightly smaller than the diameter of the cable (when the inner diameter of the remaining sealing peel-off sticker 3 is smaller than the diameter of the cable, an interference fit is used to achieve a seal). Then, tightly attach the two sealing pieces 2 and the remaining sealing peel-off sticker 3 to the cable, and then fit the two fixing shells 1 over the sealing pieces 2 and close them together. The two fixing shells 1 are then securely installed and attached through the second connecting hole 14. Finally, adjust the position of the two peel-off layer limiting pieces 4 according to the cable position. Specifically, press the button assemblies 45 at both ends of the peel-off layer limiting piece 4 to retract its limiting block 46. Slide the peel-off layer limiting piece 4 horizontally to the bottom of the outermost sealing peel-off sticker 3, then release the button. The spring 453 drives the limiting block 46 to engage with the corresponding limiting groove 17 to complete the locking.

[0034] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A sealing device for a robot plug cable, characterized in that, include: Fixed housing (1) is provided in pairs, and the two fixed housings (1) are detachably connected to each other. A sealing element (2) is inserted into the inner side of the fixed housing (1), and the sealing element (2) has a through hole. A multi-layer sealing peel-off sticker (3) is inserted into the through hole; The tear-off layer limiting member (4) is arranged in pairs and is located below the seal (2). The top of the tear-off layer limiting member (4) abuts against the bottom of the seal (2). The two ends of the tear-off layer limiting member (4) are slidably and lockably connected to the fixed housing (1).

2. The robot plug cable sealing device as described in claim 1, characterized in that, A tear groove is provided between adjacent sealing peel-off stickers (3).

3. The robot plug cable sealing device as described in claim 1, characterized in that, The fixed housing (1) includes: The outer shell body (11) has an outer wall extending into a limiting frame (13). The limiting frames (13) are arranged in pairs, and the two limiting frames (13) are arranged on both sides of the seal (2) in the vertical direction. The slide rails (15) are arranged in pairs and are opened on the side wall of the limiting frame (13) in the horizontal direction. The two ends of the tear-out layer limiting member (4) are slidably connected to the slide rails (15). Slide grooves (16) are arranged in pairs and are opened at the bottom of the slide rail (15). Several limiting grooves (17) are opened on the inner wall of the slide grooves (16). The slide grooves (16) and the limiting grooves (17) are used to limit the position of the tear-off layer limiting member (4). The first connecting hole (12) is formed on the top of the outer casing (11); The second connection hole (14) is formed on the side wall of the outer shell body (11).

4. The robot plug cable sealing device as described in claim 3, characterized in that, The tear-off layer limiting member (4) includes: The pressure rod (41) has sliders (42) fixedly connected to both ends, and the sliders (42) are slidably connected to the slide rail (15); The top of the slider (42) is provided with an annular groove (43), and the top of the slider (42) is also provided with a groove (44), which is located outside the annular groove (43); The inner side of the annular groove (43) is provided with a limiting protrusion (47), and a baffle (48) is fixedly connected to the top of the limiting protrusion (47). A button assembly (45) is inserted into the annular groove (43), and a limiting block (46) is fixedly connected to the outer wall of the button assembly (45). The limiting block (46) is located above the groove (44).

5. The robot plug cable sealing device as described in claim 4, characterized in that, The button assembly (45) includes: The sleeve (451) is inserted into the annular groove (43) at the bottom. A round button (452) is installed on the top of the sleeve (451). A protrusion (454) is integrally formed on the inner wall of the bottom of the sleeve (451). The top of the protrusion (454) abuts against the baffle (48). A spring (453) is inserted into the sleeve (451), with one end of the spring (453) abutting against the top of the baffle (48) and the other end of the spring (453) abutting against the bottom of the round button (452).

6. The robot plug cable sealing device as described in claim 1, characterized in that, The seal (2) is made of nylon material.

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