Novel shielding sleeve
By designing a new type of shielding sleeve with structures such as a ring track, steps, elastic frame and return spring, the problems of insufficient durability and ease of installation of existing shielding sleeves are solved, the shielding effect and mechanical protection of electromagnetically sensitive equipment are improved, and the safety and stability of the equipment are enhanced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-03-03
AI Technical Summary
Existing shielding sleeves are inadequate in terms of durability, shielding effectiveness, and ease of installation, which affects the stability and reliability of electromagnetically sensitive equipment.
A novel shielding sleeve was designed, comprising a sleeve body, mounting groove, fixing seat, annular track, step, elastic frame, and return spring. The sleeve body and fixing seat, made of copper material, combined with the annular track, step, elastic frame, and return spring, enable stable installation and automatic reset of the protective plate.
This improves the electromagnetic shielding and mechanical protection of the equipment, enhancing its safety and stability.
Smart Images

Figure CN223968131U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of electrical equipment technology, and specifically relates to a novel shielding sleeve. Background Technology
[0002] Shielding sleeve: A ring-shaped protective fitting that prevents corona discharge from other hardware or components within the shielded area. The shielding sleeve allows leakage current from the surface of the component under test to flow back to the power supply, protecting other devices or instruments from the effects of leakage current.
[0003] With the rapid development of electronic technology, electromagnetic interference problems are becoming increasingly prominent. In fields such as communications, computers, medicine, and the military, electromagnetic shielding sleeves are important components for protecting electromagnetically sensitive equipment, and their performance directly affects the stability and reliability of the equipment. Existing shielding sleeves still have shortcomings in terms of durability, shielding effect, and ease of installation. Summary of the Invention
[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a new type of durable copper shielding sleeve.
[0005] The objective of this utility model can be achieved through the following technical solution: A novel shielding sleeve includes a sleeve body, an installation groove is provided inside the sleeve body, and a fixing seat is provided at the top of the sleeve body. The characteristic feature is that a track is provided on the inner wall of the installation groove, the track is ring-shaped, a step is formed between the track and the installation groove, a protective cover assembly is provided at the top of the installation groove, an elastic frame is provided on the protective cover assembly, a return spring with a bracket is provided inside the elastic frame, a protective plate is connected to the elastic frame, and the protective plate is circular in shape, with both ends of the protective plate abutting against and mounted on the track.
[0006] In the aforementioned novel shielding sleeve, a through hole is provided at the center of the protective plate, the two sides of the through hole are arc-shaped, and bolt holes corresponding to the through hole are provided on the sleeve body.
[0007] In the aforementioned novel shielding sleeve, the fixing base has mutually perpendicular holes and slots that penetrate the fixing base.
[0008] In the aforementioned novel shielding sleeve, the sleeve body and the fixing base are made of copper material.
[0009] Compared with existing technologies, this new type of shielding sleeve has both electromagnetic shielding function and mechanical protection, effectively improving the safety and stability of the equipment. Through the design of structures such as ring track, steps, elastic frame and return spring, the protective plate can be stably installed and automatically reset. Attached Figure Description
[0010] Figure 1 This is a three-dimensional structural diagram of the new type of shielding sleeve.
[0011] Figure 2 This is a cross-sectional view of the new type of shielding sleeve.
[0012] In the diagram, 1 is the sleeve; 2 is the mounting groove; 3 is the fixing seat; 4 is the track; 5 is the step; 6 is the elastic frame; 7 is the return spring; 8 is the protective plate; 9 is the through hole; 10 is the bolt hole; and 11 is the slot. Detailed Implementation
[0013] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0014] like Figure 1 , Figure 2 As shown, this novel shielding sleeve includes a sleeve body 1, an installation groove 2 inside the sleeve body 1, a fixing seat 3 at the top of the sleeve body 1, a track 4 on the inner wall of the installation groove 2, the track 4 being ring-shaped, a step 5 forming between the track 4 and the installation groove 2, a protective cover assembly on the top of the installation groove 2, an elastic frame 6 on the protective cover assembly, and the elastic frame 6 being installed on the protective cover assembly. The design of the elastic frame 6 must consider its elasticity and recovery ability so that it can quickly return to its original shape after being subjected to external force. A return spring 7 with a bracket is located inside the elastic frame 6, and a protective plate 8 is connected to the elastic frame 6. The protective plate 8 is circular in shape, and its two ends abut against and are installed on the track 4. On the inner wall of the installation groove 2, a ring track 4 is machined along the circumferential direction. The cross-sectional shape and size of the track 4 must match the installation end of the protective plate 8 to ensure that the protective plate 8 can slide smoothly and be installed stably.
[0015] To elaborate further, the protective plate 8 has a through hole 9 at its center, and the two sides of the through hole 9 have an arc-shaped structure. The sleeve 1 has bolt holes 10 corresponding to the through hole 9. When the sleeve 1 needs to be inserted into the electromagnetic device, the device to be protected is embedded into the mounting groove 2 and passes through the through hole 9, ensuring that the protective plate 8 can slide smoothly and the return spring 7 is in normal working condition to protect the electrical device that extends into the mounting groove 2. When the electrical device does not need to be installed, the return spring 7 pushes against the protective plate 8, causing it to move downward along the track 4 and close the slot of the mounting groove 2.
[0016] To elaborate further, the fixing base 3 has mutually perpendicular holes and slots 11, and the holes and slots 11 penetrate the fixing base 3.
[0017] To elaborate further, the sleeve 1 and the fixing base 3 are made of copper.
[0018] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.
[0019] Although this document frequently uses terms such as sleeve 1, mounting groove 2, fixing seat 3, track 4, step 5, elastic frame 6, return spring 7, protective plate 8, through hole 9, bolt hole 10, and slot 11, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any kind of additional limitation would contradict the spirit of this utility model.
Claims
1. A novel shielding sleeve, comprising a sleeve body (1), wherein an installation groove (2) is provided inside the sleeve body (1), and a fixing seat (3) is provided at the top of the sleeve body (1), characterized in that, The inner wall of the mounting groove (2) is provided with a track (4), the track (4) is in the shape of a ring, and a step (5) is formed between the track (4) and the mounting groove (2). A protective cover assembly is provided on the top of the mounting groove (2), and an elastic frame (6) is provided on the protective cover assembly. A return spring (7) with a bracket is provided inside the elastic frame (6). A protective plate (8) is connected to the elastic frame (6), and the protective plate is in the shape of a circle. The two ends of the protective plate (8) abut against and are installed on the track (4).
2. The novel shielding sleeve according to claim 1, characterized in that, The protective plate (8) has a through hole (9) at its center, and the two sides of the through hole (9) are arc-shaped. The sleeve (1) is provided with bolt holes (10) corresponding to the through hole (9).
3. The novel shielding sleeve according to claim 1, characterized in that, The fixing base (3) has mutually perpendicular holes (11) and the holes (11) penetrate the fixing base (3).
4. A novel shielding sleeve according to claim 1, characterized in that, The sleeve (1) and the fixing base (3) are made of copper material.