Gateway structure with IP68 protection level

By employing a nested labyrinth structure and a double-layer rubber ring sealing design, combined with IP68-rated connectors and air pressure balancing components, the waterproof and dustproof issues of industrial gateways in deep water or long-term immersion environments are solved, achieving an IP68-rated protection effect.

CN224111266UActive Publication Date: 2026-04-10SHANGHAI HOLYSTAR INFORMATION TECH
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-08
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Existing industrial gateway structures are insufficient in terms of waterproof and dustproof performance, and cannot meet the needs of use in deep water or long-term immersion environments.

Method used

It adopts a nested labyrinth structure and a double-layer rubber ring sealing design, combined with IP68-rated connectors and air pressure balancing components. The self-expansion characteristics of the rubber rings enhance the sealing effect, and the one-way valve and airbag balance the internal pressure difference to prevent negative pressure from drawing in water vapor.

Benefits of technology

It achieves excellent waterproof and dustproof performance in harsh environments, adapts to working in areas underwater exceeding one meter, and ensures the reliability and stability of the equipment.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224111266U_ABST
    Figure CN224111266U_ABST
Patent Text Reader

Abstract

The utility model provides a gateway structure with an IP68 protection level. The gateway structure comprises a front cover, a middle housing, a rear cover, a gateway PCB, two first rubber rings, two second rubber rings, a plurality of connectors and an air pressure balance assembly. The two ends of the middle shell are connected with the front cover and the rear cover respectively, the side wall of the front cover and the side wall of the rear cover are each provided with two layers, and the two ends of the middle shell extend outwards to form clamping rings. According to the utility model, the front cover, the rear cover and the middle shell are sealed and protected by the nested labyrinth structure and the double-layer rubber ring, so that good waterproof and dustproof effects are realized. Wherein the rubber ring is a waterproof rubber ring made of a silicone rubber material and expands when meeting water, the sealing effect is enhanced, the connector is an IP68-grade special connector, the top-grade waterproof and dustproof performance is achieved, it is ensured that the excellent waterproof and dustproof performance can be kept under severe environments and unforeseen circumstances, and the underwater waterproof and dustproof device is suitable for working in an underwater area exceeding one meter.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of industrial communication equipment technology, and in particular to a gateway structure with IP68 protection level. Background Technology

[0002] Industrial gateways are core devices in the Industrial Internet of Things (IIoT), primarily used to enable connectivity and communication between different network environments and devices. Their core function is to seamlessly connect industrial field devices to upper-level management systems through protocol conversion, data acquisition, and edge computing.

[0003] Industrial gateways require high levels of protection when operating in harsh environments. Existing gateway structures are insufficient in terms of waterproofing and dustproofing, particularly at connector interfaces and housing seams, where water and dust can easily seep in, affecting equipment reliability. Traditional IP66-rated gateways cannot meet the needs of deep water or long-term immersion environments.

[0004] To address this issue, we propose an IP68-rated gateway structure to solve the problem that existing gateway structures have poor waterproof and dustproof performance and do not meet the requirements for use in deep water or long-term immersion environments. Utility Model Content

[0005] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a gateway structure with an IP68 protection rating to solve the problem that the existing gateway structure has poor waterproof and dustproof performance and does not meet the requirements for use in deep water or long-term immersion environments.

[0006] To achieve the above and other related objectives, this utility model provides a gateway structure with an IP68 protection rating, comprising: a front cover, a middle shell, a rear cover, a gateway PCB, two rubber rings I, two rubber rings II, several connectors, and an air pressure balancing assembly.

[0007] The two ends of the intermediate housing are respectively connected to the front cover and the rear cover. The side walls of the front cover and the rear cover are both double-layered. The two ends of the intermediate housing extend outward to form retaining rings. The two retaining rings can be inserted between the double-layered side walls of the front cover and the rear cover respectively. The outer wall ends of the front cover and the rear cover are provided with inwardly recessed placement grooves. The two rubber rings are placed in the two placement grooves respectively, and the two rubber rings are placed between the double-layered side walls of the front cover and the rear cover respectively.

[0008] The gateway PCB is located inside the intermediate housing, and several connectors are respectively connected to the front cover and the rear cover. The air pressure balancing assembly is located on the side wall of the intermediate housing; the air pressure balancing assembly is used to eliminate the negative pressure generated inside the gateway.

[0009] Preferably, the two rubber rings are made of waterproof material, and the three outer surfaces of the two rubber rings are tightly attached to the inner side walls of the front cover and the rear cover.

[0010] Preferably, the connecting ends of the connectors are provided with sealing rings, and the outer side wall of the rear cover is provided with a plurality of threaded blind holes around the connectors.

[0011] Preferably, the air pressure balancing assembly comprises a one-way valve connected to the side wall of the middle shell, the air outlet end of the one-way valve penetrates the side wall of the middle shell and extends to the inside of the middle shell, and the air inlet end of the one-way valve is connected to an air bag.

[0012] Preferably, the one-way valve comprises a shell, the inner side of the shell is provided with an air inlet pipe and an air outlet pipe, the radius of the air inlet pipe is smaller than the inner diameter of the air outlet pipe, a sealing groove is arranged between the air inlet pipe and the air outlet pipe, a sliding rod is arranged in the middle of the shell, the sliding rod can slide up and down in the shell, the two ends of the sliding rod are respectively connected to a baffle and a sealing ball valve, the sealing ball valve is matched with the sealing groove, a cavity is arranged in the upper part of the shell, and a return spring is sleeved on the outer surface of the sliding rod in the cavity.

[0013] Preferably, the radius of the sliding rod is smaller than the radius of the air inlet pipe, and the radius of the return spring is smaller than the radius of the baffle.

[0014] Preferably, the outer part of the air bag is provided with a protective shell, the air inlet end of the one-way valve penetrates the protective shell, and the connection between the one-way valve and the protective shell is sealed.

[0015] Preferably, the protective shell is connected to the middle shell, and the upper end of the protective shell is connected to a rubber pad.

[0016] As described above, the utility model discloses a gateway structure of IP68 protection level has the following beneficial effects: the utility model discloses a nested labyrinth structure and the sealing protection of double -layer rubber ring between front cover, rear cover and middle shell, realize good waterproof dustproof effect. Among them, the rubber ring selects the waterproof rubber ring made of silicon rubber material, and the sealing effect is enhanced when meeting water, and the connector selects the special connector of IP68 level, and has the top -class waterproof dustproof performance, ensures excellent waterproof dustproof performance under the adverse environment and accidental situation, and adapts to the area work of more than one meter under water.

[0017] Meanwhile, the air pressure balancing assembly is also arranged, which can cooperate with the one-way valve and the air bag to make the air bag transport gas into the gateway interior through the one-way valve under the condition that the negative pressure is generated in the gateway interior, balance the pressure difference and prevent the gateway interior from generating negative pressure to forcibly inhale water vapor.

[0018] Therefore, the utility model effectively overcomes various shortcomings in prior art and has high industrial utilization value. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 A perspective view of a gateway structure of IP68 protection level according to the utility model is shown.

[0020] Figure 2 An exploded view of a gateway structure of IP68 protection level according to the utility model is shown.

[0021] Figure 3 A perspective view of a gateway structure of IP68 protection level according to the utility model is shown. Figure 2 An enlarged view of middle A part.

[0022] Figure 4 An enlarged view of middle B part of a gateway structure of IP68 protection level according to the utility model is shown. Figure 2

[0023] Figure 5 A sectional view of a one-way valve of a gateway structure of IP68 protection level according to the utility model is shown.

[0024] ELEMENT NUMBER EXPLANATION

[0025] 1, front cover; 2, middle shell; 3, rear cover; 4, gateway PCB; 5, rubber ring one; 6, rubber ring two; 7, connector; 8, air pressure balance assembly;

[0026] 20, snap ring;

[0027] 70, sealing ring; 71, threaded blind hole;

[0028] 80, one-way valve; 81, air bag; 82, protective shell; 83, rubber pad;

[0029] 800, shell; 801, air inlet pipeline; 802, air outlet pipeline; 803, sealing groove; 804, sliding rod; 805, baffle;

[0030] 806, sealing ball valve; 807, reset spring. DETAILED DESCRIPTION

[0031] The following specific embodiments illustrate the implementation of the utility model, and those skilled in the art can easily understand other advantages and effects of the utility model from the content disclosed in the specification.

[0032] Please refer to Figures 1 to 5 ​It is to be understood that the structures, proportions, sizes, etc. shown in the drawings accompanying the present specification are merely intended to facilitate the understanding of the content disclosed in the present specification for those skilled in the art to understand and read, and are not intended to limit the implementation of the present application, and therefore do not have substantial technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the functions and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" in the present specification are merely for the convenience of clear description, and are not intended to limit the scope of the present application, and the change or adjustment of the relative relationship without substantial change of the technical content is also considered as the scope of the present application.

[0033] As shown in Figures 1-2 The present application provides a gateway structure with IP68 protection level, which comprises a front cover 1, an intermediate shell 2, a rear cover 3, a gateway PCB 4, two rubber rings 5, two rubber rings 6, a plurality of connectors 7 and a gas pressure balancing assembly 8. The overall size of the gateway structure is about 292*176*54mm.

[0034] The two ends of the intermediate shell 2 are connected with the front cover 1 and the rear cover 3 respectively, and the side walls of the front cover 1 and the rear cover 3 are both double-layered. The two ends of the intermediate shell 2 are both extended outward to form clamping rings 20, and the two clamping rings 20 can be inserted between the double-layered side walls of the front cover 1 and the rear cover 3 respectively. The outer wall ends of the front cover 1 and the rear cover 3 are both provided with inwardly recessed placing grooves, and the two rubber rings 5 are placed in the two placing grooves respectively, and the two rubber rings 6 are placed between the double-layered side walls of the front cover 1 and the rear cover 3 respectively. The front cover 1, the intermediate shell 2 and the rear cover 3 are all made of integrated die-cast aluminum alloy material, and have a nested structure and double-layered rubber ring sealing treatment, and have good waterproof and dustproof performance.

[0035] The gateway PCB 4 is located inside the intermediate shell 2, and the gateway PCB 4 adopts a fully enclosed metal shell with surface oxidation treatment, which can prevent the equipment from being disturbed by external ESD. At the same time, the surface of the gateway PCB 4 is coated with a three-proofing paint, and the key components thereof are protected by potting. The plurality of connectors 7 are connected with the front cover 1 and the rear cover 3 respectively, and the connectors 7 adopt IP68 level special connectors 7, which have top-level waterproof and dustproof performance. The gas pressure balancing assembly 8 is arranged on the side wall of the intermediate shell 2, and is used to eliminate the negative pressure generated inside the gateway to prevent the gateway from forcibly inhaling water vapor due to internal negative pressure.

[0036] In an embodiment, please refer to Figure 2Two rubber rings, rubber ring one 5 and rubber ring two 6, are made of waterproof silicon rubber, with a temperature resistance range of -40℃ to 200℃, and have a self-expanding feature, expanding when encountering water to enhance the sealing effect. The three outer surfaces of rubber ring two 6 are tightly attached to the inner side walls of the front cover 1 and the rear cover 3.

[0037] In an embodiment, please refer to Figure 3 The connecting end of each connector 7 is provided with a sealing ring 70, and the sealing ring 70 is used to realize the sealing operation between the connector 7 and the front cover 1. The outer side wall of the rear cover 3 and the periphery of the connector 7 are provided with a plurality of threaded blind holes 71, and the connector 7 is fixed to the rear cover 3 by screws. The threaded blind holes 71 can prevent water and dust from entering, thereby improving the waterproof and dustproof capability.

[0038] In an embodiment, please refer to Figures 4-5 The air pressure balancing assembly 8 includes a one-way valve 80 connected to the side wall of the middle shell 2. The gas outlet end of the one-way valve 80 penetrates the side wall of the middle shell 2 and extends to the inside of the middle shell 2. The gas inlet end of the one-way valve 80 is connected to an air bag 81. In the case of negative pressure inside the gateway, the gas in the air bag 81 is transported into the gateway under the action of the pressure difference through the one-way valve 80, thereby balancing the pressure difference and avoiding the negative pressure inside the gateway from causing forced water vapor absorption.

[0039] In an embodiment, please refer to Figure 5 The one-way valve 80 includes a shell 800. The inner side of the shell 800 is provided with a gas inlet pipe 801 and a gas outlet pipe 802. The radius of the gas inlet pipe 801 is smaller than the inner diameter of the gas outlet pipe 802. A sealing groove 803 is arranged between the gas inlet pipe 801 and the gas outlet pipe 802. A sliding rod 804 is arranged in the middle of the shell 800. The sliding rod 804 can slide up and down inside the shell 800. The two ends of the sliding rod 804 are respectively connected to a baffle 805 and a sealing ball valve 806. The sealing ball valve 806 is matched with the sealing groove 803. The upper part of the shell 800 is provided with a cavity. A return spring 807 is sleeved on the outer surface of the sliding rod 804 and located in the cavity. When negative pressure is formed inside the gateway, the gas in the air bag 81 enters the gas inlet pipe 801 under the action of the pressure difference, and pushes the sealing ball valve 806 to descend. The sealing ball valve 806 drives the baffle 805 to descend through the sliding rod 804. The baffle 805 extrudes the return spring 807 to make it contract. At this time, the gas inlet pipe 801 and the gas outlet pipe 802 are connected, the gas is transported to the gas outlet pipe 802 through the gas inlet pipe 801, and then enters the gateway, thereby balancing the air pressure inside the gateway. After the pressure difference inside the gateway is stable, the return spring 807 pushes the baffle 805 to reset, and the baffle 805 drives the sealing ball valve 806 to reset through the sliding rod 804, so as to re-enter the sealing groove 803 and block the gas inlet pipe 801 and the gas outlet pipe 802. Figure 5 The arrow route is the gas flow path.

[0040] In an embodiment, please refer to Figure 5 The radius of the slide rod 804 is smaller than the radius of the air inlet pipe 801, so that the slide rod 804 can pass through the air inlet pipe 801 to drive the sealing ball valve 806 to move up and down. The radius of the reset spring 807 is smaller than the radius of the baffle 805, so that the reset spring 807 is compressed under the pressure of the baffle 805, and the baffle 805 can also reset the slide rod 804 and the sealing ball valve 806.

[0041] In an embodiment, please refer to Figure 4 The air bag 81 is provided with a protective shell 82, which protects the air bag 81 from being damaged by external force. The air inlet end of the one-way valve 80 penetrates the protective shell 82, and the connection between the one-way valve 80 and the protective shell 82 is sealed.

[0042] In an embodiment, please refer to Figure 4 The protective shell 82 is connected with the intermediate shell 2 to fix the protective shell 82. The upper end of the protective shell 82 is connected with a rubber pad 83, and the air pressure balance in the interior of the protective shell 82 can be realized through the inner recess of the rubber pad 83.

[0043] The specific use process of the utility model is as follows:

[0044] The clamping ring 20 at both ends of the intermediate shell 2 is respectively inserted into the double-layer side wall of the front cover 1 and the rear cover 3, and the rubber ring one 5 and the rubber ring two 6 are arranged at the connection, so as to form a nested labyrinth structure and double-layer sealing protection, and realize the waterproof and dustproof function;

[0045] In the case that negative pressure is generated in the gateway, the gas in the air bag 81 enters the air inlet pipe 801 under the action of pressure difference, and pushes the sealing ball valve 806 to descend. The sealing ball valve 806 drives the baffle 805 to descend through the slide rod 804, and the baffle 805 extrudes the reset spring 807 to make it contract. At this time, the air inlet pipe 801 and the air outlet pipe 802 are connected, the gas is transported to the air outlet pipe 802 through the air inlet pipe 801, and then enters the interior of the gateway to balance the air pressure in the gateway. After the pressure difference in the gateway is stable, the reset spring 807 resets the baffle 805, so that the baffle 805 drives the sealing ball valve 806 to reset through the slide rod 804, and reenters the sealing groove 803 to block the air inlet pipe 801 and the air outlet pipe 802, and closes the one-way valve 80.

[0046] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the present application should be covered by the claims of the present application.

Claims

1. A gateway structure of IP68 protection class, characterized in that, The utility model relates to a gateway, including: Front cover (1), intermediate casing (2), back cover (3), gateway PCB (4), two rubber ring one (5), two rubber ring two (6), a plurality of connectors (7) and air pressure balance assembly (8); The both ends of intermediate casing (2) are connected with front cover (1) and back cover (3) respectively, the sidewall of front cover (1) and the sidewall of back cover (3) are both double-layered, the both ends of intermediate casing (2) are extended to form snap ring (20) outward, two snap ring (20) can be inserted between the double-layered sidewall of front cover (1) and back cover (3) respectively, the outer wall end of front cover (1) and back cover (3) is provided with recessed placing groove inward, two rubber ring one (5) are placed in two placing grooves respectively, two rubber ring two (6) are placed between the double-layered sidewall of front cover (1) and back cover (3) respectively; Gateway PCB (4) is located in the inside of intermediate casing (2), a plurality of connectors (7) are connected with front cover (1) and back cover (3) respectively, air pressure balance assembly (8) is arranged on the sidewall of intermediate casing (2), air pressure balance assembly (8) is used for eliminating the negative pressure generated in the gateway.

2. A gateway structure of IP68 protection class according to claim 1, characterized in that: Two rubber ring one (5) and rubber ring two (6) are made of waterproof material, three outer surfaces of two rubber ring two (6) are tightly combined with the inner sidewall of front cover (1) and back cover (3) respectively.

3. A gateway structure of IP68 protection class according to claim 1, characterized in that: The connecting end of all connectors (7) is provided with sealing ring (70), the outer sidewall of back cover (3) and located the periphery of connector (7) is provided with a plurality of threaded blind holes (71).

4. A gateway structure of IP68 protection class according to claim 1, characterized in that: Air pressure balance assembly (8) includes one-way valve (80) connected with the sidewall of intermediate casing (2), the air outlet end of one-way valve (80) penetrates the sidewall of intermediate casing (2) and extends to the inside of intermediate casing (2), the air inlet end of one-way valve (80) is connected with air bag (81).

5. A gateway structure of IP68 protection class according to claim 4, characterized in that: One-way valve (80) includes shell (800), the inner side of shell (800) is provided with air inlet pipe (801) and air outlet pipe (802), the radius of air inlet pipe (801) is less than the inner diameter of air outlet pipe (802), sealing groove (803) is arranged between air inlet pipe (801) and air outlet pipe (802), the middle part of shell (800) is provided with sliding rod (804), sliding rod (804) can slide up and down in the inside of shell (800), the both ends of sliding rod (804) are connected with baffle (805) and sealing ball valve (806) respectively, sealing ball valve (806) is matched with sealing groove (803), the upper part of shell (800) is provided with cavity, the outer surface of sliding rod (804) and the part in the cavity are sleeved with reset spring (807).

6. A gateway structure of IP68 protection class according to claim 5, characterized in that: The radius of sliding rod (804) is less than the radius of air inlet pipe (801), the radius of reset spring (807) is less than the radius of baffle (805).

7. A gateway structure of IP68 protection class according to claim 4, characterized in that: The outside of air bag (81) is provided with protection shell (82), the air inlet end of one-way valve (80) penetrates protection shell (82), and the connection between one-way valve (80) and protection shell (82) is sealed.

8. A gateway structure of IP68 protection class according to claim 7, characterized in that: The protective shell (82) is connected with the middle casing (2), and the upper end of the protective shell (82) is connected with a rubber pad (83).