Environment-friendly cabinet lower outlet bushing

By introducing sealing components and installing clamping pin components in the lower outlet bushing of the environmental protection cabinet, the problems of cable damage and electrical equipment failure caused by poor sealing are solved, achieving higher sealing performance and installation efficiency.

CN224582798UActive Publication Date: 2026-07-31ZHEJIANG ANYI ELECTRIC POWER TECHNOLOGY CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG ANYI ELECTRIC POWER TECHNOLOGY CO LTD
Filing Date
2025-08-29
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

The existing environmental protection cabinet's bottom outlet bushings, due to their inadequate sealing during long-term use, allow dust, moisture, and water to enter, causing cable damage and electrical equipment malfunctions, thus affecting their protective performance.

Method used

The design employs a sealing assembly and a mounting clamping pin assembly. The sealing assembly provides stable sealing support through a combination of a fixing sleeve, rubber ring, and flange, while the mounting clamping pin assembly ensures installation stability and reliability through the cooperation of a mounting tube, spring, and ball.

Benefits of technology

It improves the sealing performance and installation reliability of the bushing, prevents dust, moisture and water from entering, avoids cable damage and electrical equipment failure, and reduces installation time and cost.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224582798U_ABST
    Figure CN224582798U_ABST
Patent Text Reader

Abstract

This utility model discloses a bottom-outlet sleeve for environmental protection cabinets, relating to the technical field of environmental protection cabinets. The bottom-outlet sleeve includes a sleeve body and a connecting pipe at one end of the sleeve body. A connector is fixedly connected to the inner wall of the connecting pipe. It also includes: a compression ring disposed on the surface of the sleeve body, with a sealing assembly fixedly connected to one end of the compression ring. The sealing assembly includes a fixed sleeve, a rubber ring A, and a flange, with a rubber ring B fixedly connected to one end of the fixed sleeve. An installation ring is disposed on the surface of the sleeve body, with a clamping pin assembly fixedly connected to one side of the installation ring. The clamping pin assembly includes an installation tube, a spring, and a ball bearing. This utility model, through the sealing assembly and the clamping pin assembly, helps maintain a sealing effect and operational stability, prevents dust, moisture, and water from entering, avoids cable damage and electrical equipment failure, and improves the protective performance of the sleeve.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of environmental protection cabinet technology, specifically to the lower cable outlet sleeve of an environmental protection cabinet. Background Technology

[0002] The bottom-outlet bushing of an environmental protection cabinet is a commonly used accessory device in power equipment. Its main function is to provide a protective channel for cables or wires, ensuring that the cables are not affected by the external environment during the outgoing process, thereby improving the safety and reliability of the power system. With increasing attention to environmental protection and sustainable development, the design and application of bottom-outlet bushings in environmental protection cabinets are gradually trending towards more environmentally friendly, energy-saving, and durable designs.

[0003] Utility model patent CN207896543U discloses a lower outgoing bushing for a solid-insulated ring main unit, including an outgoing housing and an outgoing conductor disposed inside and penetrating the outgoing housing. The upper end of the outgoing conductor is electrically connected to a fuse cylinder in the solid-insulated ring main unit. The upper end of the outgoing conductor is provided with a grounding terminal for an external grounding switch to be electrically connected. The upper end of the outgoing housing is mounted on the fuse cylinder via a flange connection, and the outgoing housing is also provided with a grounding guide hole communicating with the grounding terminal so that the external grounding switch can be inserted into the outgoing housing and electrically connected to the grounding terminal. The lower outgoing bushing of this utility model is independently formed and fixed to the fuse cylinder by a flange connection, which reduces the processing difficulty and is easy to assemble and maintain. The grounding terminal is integrated on the outgoing conductor of the lower outgoing bushing, which is simple in structure and easy to operate. It also reduces the size of the lower outgoing bushing, saving space and manufacturing costs. The lower outgoing bushing has its own support part, which can reduce the connection stress of the external cable.

[0004] However, in the long-term use of existing environmental protection cabinets, low-quality environmental protection bushings may allow dust, moisture, and water to enter due to poor sealing, causing cable damage and electrical equipment failure, thus affecting their protective performance. Utility Model Content

[0005] This utility model provides a bottom outlet sleeve for environmental protection cabinets, which has the advantage of facilitating improved sealing performance of environmental protection sleeves. This solves the problem that in the long-term use of existing low-quality environmental protection sleeves, dust, moisture and water can enter due to poor sealing, causing cable damage and electrical equipment failure, thus affecting their protective performance.

[0006] To improve the sealing performance of environmental protection sleeves, this utility model provides the following technical solution: A lower outlet sleeve for an environmental protection cabinet, comprising a sleeve body and a connecting pipe at one end of the sleeve body, wherein a connector is fixedly connected to the inner wall of the connecting pipe. It also includes: a compression ring on the surface of the sleeve body, one end of which is fixedly connected to a sealing assembly, the sealing assembly including a fixed sleeve, a rubber ring A, and a flange, one end of which is fixedly connected to a rubber ring B; an mounting ring on the surface of the sleeve body, one side of which is fixedly connected to a mounting clamping pin assembly, the mounting clamping pin assembly including a mounting tube, a spring, and a ball bearing, the inner wall of which has a threaded groove; and a through pipe at one end of the sleeve body, the surface of which is fixedly connected to multiple sets of umbrella skirts, one end of which is fixedly connected to a protective frame, one side of which has an installation groove.

[0007] As a preferred embodiment of the present invention, the sealing assembly includes a fixed sleeve fixedly connected to one end of the extrusion ring, a rubber ring A fixedly connected to one end of the inner wall of the fixed sleeve, and a flange fixedly connected to one end of the rubber ring A.

[0008] As a preferred embodiment of this utility model, the mounting clamping pin assembly includes a mounting tube fixedly connected to one side of the mounting ring, and a spring fixedly connected to the inner wall of the mounting tube, with a ball bearing provided at the other end of the spring.

[0009] As a preferred embodiment of this utility model, one end of the fixing sleeve is provided with multiple sets of mounting holes, and the other end of the fixing sleeve is provided with multiple sets of threaded holes.

[0010] As a preferred embodiment of this utility model, the inner wall of the fixed sleeve is provided with two sets of retaining rings, and one side of the flange is provided with multiple sets of threaded holes, with screws inserted into the inner wall of the threaded holes.

[0011] As a preferred embodiment of this utility model, one end of the mounting tube is provided with multiple sets of ball holes, and one end of the spring is fixedly connected with a threaded connecting post.

[0012] As a preferred embodiment of this utility model, a silicone ring is fitted onto the surface of the threaded connecting post, and a rotating handle is fixedly connected to one end of the threaded connecting post.

[0013] As a preferred embodiment of this utility model, the other end of the spring is fixedly connected to a tapered column, and one end of the tapered column is fixedly connected to a limit rod.

[0014] Compared with the prior art, this utility model provides a bottom outlet sleeve for environmental protection cabinets, which has the following beneficial effects:

[0015] The lower outlet bushing of this environmental protection cabinet, through the setting of the sealing component, provides stable support and position fixation for the sealing component when it is necessary to improve the bushing's protective performance. Two sets of retaining rings on the inner wall of the fixed bushing restrict the axial movement of rubber rings A and B. The retaining rings can provide a certain resistance when subjected to external forces, ensuring that rubber rings A and B remain fixed in the predetermined position, which helps maintain the sealing effect and operational stability. Through the mounting hole, the compression ring squeezes rubber ring B, increasing the sealing performance. At the same time, the screw connects the flange to the fixed bushing through the threaded hole. The flange squeezes rubber ring A, providing a tightening force and ensuring the sealing performance. Thus, it helps maintain the sealing effect and operational stability, prevents dust, moisture and water from entering, avoids cable damage and electrical equipment failure, and improves the bushing's protective performance.

[0016] The bottom outlet sleeve of this environmental protection cabinet, through the installation of a clamping pin assembly, provides a fixed installation position for easy installation of the bottom outlet sleeve. One end of the installation tube is inserted into the installation hole on one side of the installation ring. The handle is manually rotated, causing the threaded connecting post to be threaded into the threaded groove on the inner wall of the installation tube. At the same time, the threaded connecting post compresses the spring, which is fixedly connected to the inner wall of the installation tube. The elastic restoring force maintains the position of the rolling ball. During installation, the spring ensures that the rolling ball is kept in the appropriate position, driving the tapered post to press down. The tapered post provides a certain guiding effect, making the spring more stable during operation. When compressed by the spring, the rolling ball can automatically embed into the fixed position, ensuring that the installation component can be firmly clamped and released. The rolling ball can provide fixing force when needed to prevent the component from accidentally loosening. A part of the ball hole is squeezed out and stuck on the inner wall of the installation tube, thereby ensuring the reliability and safety of the installation component, improving the ease and efficiency of operation, reducing installation time and cost, and improving installation efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the overall disassembled structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the sealing assembly structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the installation clamping pin assembly structure of this utility model.

[0021] In the diagram: 1. Sleeve body; 2. Connecting pipe; 3. Connector; 4. Extrusion ring; 5. Sealing assembly; 501. Fixed sleeve; 502. Rubber ring A; 503. Flange; 6. Rubber ring B; 7. Mounting ring; 8. Mounting clamping pin assembly; 801. Mounting pipe; 802. Spring; 803. Ball bearing; 9. Through pipe; 10. Umbrella skirt; 11. Protective frame; 12. Retaining ring; 13. Screw; 14. Threaded connecting post; 15. Silicone ring; 16. Rotating handle; 17. Conical post; 18. Limiting rod. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-4 This utility model discloses a lower cable outlet sleeve for an environmental protection cabinet, including a sleeve body 1 and a connecting pipe 2 disposed at one end of the sleeve body 1. A connector 3 is fixedly connected to the inner wall of the connecting pipe 2. The sleeve body 1 also includes: a compression ring 4 disposed on the surface of the sleeve body 1, a sealing component 5 fixedly connected to one end of the compression ring 4, the sealing component 5 including a fixing sleeve 501, a rubber ring A 502 and a flange 503, a rubber ring B6 fixedly connected to one end of the fixing sleeve 501; an installation ring 7 disposed on the surface of the sleeve body 1, a clamping pin assembly 8 fixedly connected to one side of the installation ring 7, the clamping pin assembly 8 including an installation tube 801, a spring 802 and a ball 803, a threaded groove being formed on the inner wall of the installation tube 801; and a through pipe 9 disposed at one end of the sleeve body 1, multiple sets of umbrella skirts 10 fixedly connected to the surface of the through pipe 9, a protective frame 11 fixedly connected to one end of the through pipe 9, and an installation groove being formed on one side of the protective frame 11.

[0024] Specifically, the sealing assembly 5 includes a fixed sleeve 501 fixedly connected to one end of the compression ring 4, a rubber ring A502 fixedly connected to one end of the inner wall of the fixed sleeve 501, and a flange 503 fixedly connected to one end of the rubber ring A502.

[0025] In this embodiment, the fixed sleeve 501 provides stable support and position fixation for the sealing assembly 5. The two sets of retaining rings 12 on the inner wall of the fixed sleeve 501 restrict the axial movement of the rubber ring A502 and the rubber ring B6. The retaining rings 12 can provide a certain resistance when subjected to external forces, ensuring that the rubber ring A502 and the rubber ring B6 remain fixed in the predetermined position, which helps to maintain the sealing effect and operational stability. Through the mounting hole, the compression ring 4 compresses the rubber ring B6 to increase the sealing performance. At the same time, the screw 13 connects the flange 503 to the fixed sleeve 501 through the threaded hole. The flange 503 compresses the rubber ring A502 to provide a fastening force and ensure the sealing performance.

[0026] Specifically, the mounting clamping pin assembly 8 includes a mounting tube 801 fixedly connected to one side of the mounting ring 7, and a spring 802 fixedly connected to the inner wall of the mounting tube 801. A ball bearing 803 is provided at the other end of the spring 802.

[0027] In this embodiment, the mounting tube 801 provides a fixed installation position. One end of the mounting tube 801 is inserted into the mounting hole on one side of the mounting ring 7. The handle 16 is manually rotated so that the threaded connecting post 14 is threaded into the threaded groove on the inner wall of the mounting tube 801. At the same time, the threaded connecting post 14 compresses the spring 802, which is fixedly connected to the inner wall of the mounting tube 801. The elastic restoring force maintains the position of the ball 803. During installation, the spring 802 ensures that the ball 803 is kept in the appropriate position, driving the tapered post 17 to press down. The tapered post 17 provides a certain guiding effect, making the spring 802 more stable during operation. When compressed by the spring 802, the ball 803 can automatically embed into the fixed position, ensuring that the mounting component can be firmly clamped and released. The ball 803 can provide fixing force when needed to prevent the component from accidentally loosening and squeezing out a part of the ball hole outside the hole and getting stuck on the inner wall of the mounting tube 801.

[0028] Specifically, one end of the fixed sleeve 501 has multiple sets of mounting holes, and the other end of the fixed sleeve 501 has multiple sets of threaded holes.

[0029] In this embodiment, one end of the fixed sleeve 501 is provided with multiple sets of mounting holes. Through the mounting holes, the compression ring 4 compresses the rubber ring B6 to increase the sealing performance. At the same time, the screw 13 connects the flange 503 to the fixed sleeve 501 through the threaded hole. The flange 503 compresses the rubber ring A502 to provide fastening force and ensure sealing performance.

[0030] Specifically, the inner wall of the fixed sleeve 501 is provided with two sets of retaining rings 12, and multiple sets of threaded holes are opened on one side of the flange 503, with screws 13 inserted into the inner wall of the threaded holes.

[0031] In this embodiment, the inner wall of the fixed sleeve 501 is provided with two sets of retaining rings 12. The two sets of retaining rings 12 on the inner wall of the fixed sleeve 501 restrict the axial movement of the rubber ring A502 and the rubber ring B6. The retaining rings 12 can provide a certain resistance when subjected to external force, ensuring that the rubber ring A502 and the rubber ring B6 are fixed in the predetermined position, which helps to maintain the sealing effect and operational stability. The screw 13 connects the flange 503 to the fixed sleeve 501 through the threaded hole. The flange 503 squeezes the rubber ring A502 to provide a fastening force and ensure the sealing performance.

[0032] Specifically, one end of the mounting tube 801 has multiple sets of ball holes, and one end of the spring 802 is fixedly connected to a threaded connecting post 14.

[0033] In this embodiment, when compressed by the spring 802, the ball 803 can automatically embed into the fixed position, ensuring that the mounting part can be firmly clamped and released. The ball 803 can provide a fixing force when needed to prevent the component from accidentally loosening and squeezing out a part of the outer side of the ball hole and getting stuck on the inner wall of the mounting tube 801.

[0034] Specifically, a silicone ring 15 is fitted onto the surface of the threaded connecting post 14, and a rotating handle 16 is fixedly connected to one end of the threaded connecting post 14.

[0035] In this embodiment, the silicone ring 15 is fitted onto the surface of the threaded connecting post 14. It can fill the gap between the threaded connecting post 14 and the mounting tube 801, preventing dust, moisture and other impurities from entering, thereby improving the durability and sealing of the mounting clamping pin assembly 8. The rotating handle 16 provides a way to operate the threaded connecting post 14. By rotating the handle 16, the user can manually adjust the position of the threaded connecting post 14, thereby realizing the adjustment, clamping and loosening of other components. The design of the rotating handle 16 makes the assembly more flexible in use and easy to operate, increasing the convenience of use.

[0036] Specifically, the other end of the spring 802 is also fixedly connected to a tapered column 17, and one end of the tapered column 17 is fixedly connected to a limit rod 18.

[0037] In this embodiment, the tapered column 17 is driven to press down, and the tapered column 17 provides a certain guiding effect, making the spring 802 more stable when working. When it is compressed by the spring 802, the ball 803 can automatically embed into the fixed position, ensuring that the mounting part can be firmly clamped and released. The tapered column 17 and the limit rod 18 ensure the smooth operation of the buffer action.

[0038] The working principle and usage process of this utility model are as follows: When it is necessary to improve the protective performance of the sleeve, the fixed sleeve 501 provides stable support and position fixation for the sealing component 5. The two sets of retaining rings 12 on the inner wall of the fixed sleeve 501 restrict the axial movement of the rubber ring A502 and the rubber ring B6. The retaining rings 12 can provide a certain resistance when subjected to external forces, ensuring that the rubber ring A502 and the rubber ring B6 are fixed in the predetermined position, which helps to maintain the sealing effect and operational stability. Through the mounting hole, the compression ring 4 compresses the rubber ring B6 to increase the sealing performance. At the same time, the screw 13 connects the flange 503 to the fixed sleeve 501 through the threaded hole. The flange 503 compresses the rubber ring A502 to provide fastening force and ensure sealing performance. When it is convenient to install the sleeve under the environmental protection cabinet, the mounting tube 801 provides a fixed installation position. One end of 801 is inserted into the mounting hole on one side of the mounting ring 7. The handle 16 is manually rotated so that the threaded connecting post 14 is threaded into the threaded groove on the inner wall of the mounting tube 801. At the same time, the threaded connecting post 14 compresses the spring 802. The spring 802 is fixedly connected to the inner wall of the mounting tube 801. The elastic restoring force maintains the position of the ball 803. During the installation process, the spring 802 can ensure that the ball 803 is kept in the right position, driving the tapered post 17 to press down. The tapered post 17 provides a certain guiding effect, making the spring 802 more stable when working. When it is compressed by the spring 802, the ball 803 can automatically embed into the fixed position, ensuring that the mounting part can be firmly clamped and released. The ball 803 can provide fixing force when needed to prevent the component from accidentally loosening and squeezing out a part of the ball hole and getting stuck on the inner wall of the mounting tube 801.

[0039] In summary, the lower outlet bushing of this environmental protection cabinet, through the setting of sealing component 5, helps to maintain the sealing effect and operational stability, prevents dust, moisture and water from entering, avoids cable damage and electrical equipment failure, and improves the protective performance of the bushing. Through the setting of clamping pin component 8, it ensures the reliability and safety of the installation components, improves the ease and efficiency of operation, reduces installation time and cost, and improves installation efficiency.

[0040] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An environmentally-friendly cabinet lower outlet bushing, comprising a bushing body (1) and a connecting pipe (2) arranged at one end of the bushing body (1), an inner wall of the connecting pipe (2) is fixedly connected with a connector (3), characterized in that, Also includes: A compression ring (4) is provided on the surface of the sleeve body (1). One end of the compression ring (4) is fixedly connected to a sealing assembly (5). The sealing assembly (5) includes a fixed sleeve (501), a rubber ring A (502) and a flange (503). One end of the fixed sleeve (501) is fixedly connected to a rubber ring B (6). A mounting ring (7) is provided on the surface of the sleeve body (1). A mounting clamping pin assembly (8) is fixedly connected to one side of the mounting ring (7). The mounting clamping pin assembly (8) includes a mounting tube (801), a spring (802) and a ball (803). The inner wall of the mounting tube (801) is provided with a threaded groove. A through pipe (9) is provided at one end of the sleeve body (1). Multiple sets of umbrella skirts (10) are fixedly connected to the surface of the through pipe (9). A protective frame (11) is fixedly connected to one end of the through pipe (9). An installation groove is provided on one side of the protective frame (11).

2. The environmentally friendly cabinet below outlet bushing of claim 1, wherein: The sealing assembly (5) includes a fixed sleeve (501) fixedly connected to one end of the compression ring (4), a rubber ring A (502) fixedly connected to one end of the inner wall of the fixed sleeve (501), and a flange (503) fixedly connected to one end of the rubber ring A (502).

3. The environmentally friendly cabinet below outlet bushing of claim 1, wherein: The mounting clamping pin assembly (8) includes a mounting tube (801) fixedly connected to one side of the mounting ring (7), and a spring (802) is fixedly connected to the inner wall of the mounting tube (801). A ball (803) is provided at the other end of the spring (802).

4. The environmentally friendly cabinet below outlet bushing of claim 1, wherein: The fixed sleeve (501) has multiple sets of mounting holes at one end and multiple sets of threaded holes at the other end.

5. The environmentally protected cabinet underfeed bushing of claim 1, wherein: The inner wall of the fixed sleeve (501) is provided with two sets of retaining rings (12), and a plurality of threaded holes are opened on one side of the flange (503), and a screw (13) is inserted into the inner wall of the threaded hole.

6. The environmentally protected cabinet underfeed bushing of claim 1, wherein: The mounting tube (801) has multiple sets of ball holes at one end, and the spring (802) is fixedly connected to a threaded connecting post (14) at one end.

7. The environmentally protected cabinet underfeed bushing of claim 6, wherein: A silicone ring (15) is fitted onto the surface of the threaded connecting post (14), and a rotating handle (16) is fixedly connected to one end of the threaded connecting post (14).

8. The environmentally protected cabinet underfeed bushing of claim 7, wherein: The other end of the spring (802) is also fixedly connected to a tapered column (17), and one end of the tapered column (17) is fixedly connected to a limit rod (18).