Telescopic protective cover formed by welding single piece
The telescopic cover, formed by single-piece welding, features an alternating distribution of inner and outer folds and is supported by a support ring. This design solves the problems of cumbersome welding and easy deformation of existing telescopic covers, achieving efficient welding and stable telescopic protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU KRIUS MACHINE TOOL ACCESSORIES
- Filing Date
- 2025-04-21
- Publication Date
- 2026-05-12
AI Technical Summary
现有伸缩防护罩由多个盘片组成,焊接位置容易凹陷变形,焊接过程繁琐且效率低,容易出现假焊、虚焊,影响保护效果。
The telescopic cover is formed by welding a single piece along the axial direction. It has an alternating inner and outer folds and is wrapped with a support ring. The support ring corresponds to the outer fold and is made of rubber. Both ends are provided with connection ports and connectors. The flange is fixed by fitting with the connection holes.
Simplify the welding process, reduce the number of welding points, improve processing efficiency, avoid dents, enhance expansion and contraction performance, and ensure protective effect.
Smart Images

Figure CN224223056U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical parts technology, and more specifically, to a telescopic protective cover formed by single-piece welding. Background Technology
[0002] Telescopic protective covers are an important component of modern industrial machinery, widely used in machine tools, CNC machine tools, laser cutting machines, and other equipment. They are important industrial safety devices and machine tool accessories, protecting the machine tool's working area, guide rails, and important internal mechanical components. They prevent damage to the machine tool from substances such as cutting fluid, chips, oil mist, dust, and iron filings generated during operation, extending the machine tool's service life and ensuring stable operation and ease of use.
[0003] Authorized publication number "CN113146716A" discloses a retractable protective cover and its molding method. It is formed by cutting a single piece of elastomer. The outer and inner surfaces of the elastomer have parallel alternating cuts. The ends of the cuts on the outer surface are a certain distance from the inner surface, forming a connection width, and the ends of the cuts on the inner surface are a certain distance from the outer surface, also forming a connection width. Because this invention is cut from a single piece of elastomer, the connection between adjacent cut positions is also an integral structure without gaps. In actual use, the protective cover is not easily damaged by long-term axial tensile force, exhibiting strong axial tensile strength. Even if the surface is corroded or soaked for a long time, it is not easily cracked, demonstrating strong corrosion resistance. Therefore, the strength and sealing of the protective cover are improved, achieving complete protection and reducing the cost of manual maintenance and replacement.
[0004] Currently, when telescopic protective covers are applied to mechanical equipment, most of the equipment typically has a certain length. Therefore, the telescopic protective covers also need to be able to extend to a certain length to ensure complete protection of the equipment. However, existing telescopic protective covers are usually composed of multiple discs, with each pair of adjacent discs fixed by welding. The welding points are located between adjacent discs. During the telescopic protection process, if the protective cover is stretched too far, the welded joints of the discs are prone to denting and deformation, which is not conducive to long-distance telescopic extension. Moreover, when manufacturing a longer protective cover, more discs need to be welded, which is not only cumbersome and inefficient, but also increases the number of welding points, making it easy to have false welds or incomplete welds, resulting in cracks and leaks that affect the protective effect. Utility Model Content
[0005] 1. Technical problems to be solved
[0006] To address the problems existing in the prior art, the purpose of this utility model is to provide a single-piece welded telescopic protective cover. This addresses the issue that existing telescopic protective covers typically consist of multiple discs, with adjacent discs fixed by welding. The welding points are located between adjacent discs. During the telescopic protection of mechanical equipment, if the cover is stretched too far, the welded joints of the discs are prone to denting and deformation, hindering long-distance telescopic movement. Furthermore, manufacturing longer protective covers requires welding numerous discs, which is not only cumbersome and inefficient but also increases the number of welding points, increasing the risk of false welds and incomplete welds, leading to cracking, leakage, and compromised protective effectiveness.
[0007] 2. Technical Solution
[0008] To solve the above problems, the present invention adopts the following technical solution:
[0009] A single-piece welded telescopic protective cover includes a telescopic cover, which is welded along the axial direction. The telescopic cover has multiple inwardly protruding inner folds and multiple outwardly protruding outer folds, which are staggered. The telescopic cover is wrapped with multiple support rings, which correspond to the multiple outer folds respectively.
[0010] As a preferred embodiment of this utility model, the telescopic cover is made of rubber and is in the shape of a corrugated tube.
[0011] As a preferred embodiment of this utility model, the telescopic cover is fixedly connected to a connection port and a connection head at both ends.
[0012] As a preferred embodiment of this utility model, the connector is provided with a flange, and multiple connection holes are provided between the flange and the connector.
[0013] 3. Beneficial effects
[0014] Compared with existing technologies, the advantages of this utility model are:
[0015] (1) In this solution, the telescopic cover is made of a single piece of raw material rolled into a circle and welded along the axial direction on the outer surface. The welding positions are on a straight line, which makes the welding process simple, reduces the number of welding points, improves processing efficiency, reduces false welding, and reduces the risk of cracking and leakage at the welding position.
[0016] (2) In this solution, the welded telescopic cover has good telescopic performance through multiple inner and outer folds, and wraps multiple support rings. The multiple support rings correspond to multiple outer folds to support the telescopic cover, which can effectively prevent the protective cover from denting when it is stretched too long on the mechanical equipment, and ensure the protective effect of the protective cover on the mechanical equipment. Attached Figure Description
[0017] Figure 1 This is the front view of the present invention;
[0018] Figure 2 This is a structural diagram of the telescopic cover before welding in this utility model;
[0019] Figure 3 This is a structural diagram of the telescopic cover welded together in this utility model;
[0020] Figure 4 This is a cross-sectional view of the present invention;
[0021] Figure 5 This is a structural diagram of the telescopic cover, connecting port, and connecting head in this utility model.
[0022] Explanation of the labels in the diagram:
[0023] 1. Telescopic cover; 11. Inner fold; 12. Outer fold; 2. Support ring; 3. Connection port; 4. Connector; 5. Flange; 6. Connection hole. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0025] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0027] Example:
[0028] Please see Figure 1-5 A single-piece welded telescopic protective cover includes a telescopic cover 1, which is welded along the axial direction. The telescopic cover 1 is provided with a plurality of inwardly protruding inner folds 11 and a plurality of outwardly protruding outer folds 12, and the inner folds 11 and outer folds 12 are distributed in an alternating manner. The telescopic cover 1 is wrapped with a plurality of support rings 2, and the plurality of support rings 2 correspond to the plurality of outer folds 12 respectively.
[0029] In this embodiment, the telescopic cover 1 is made of a single sheet of raw material rolled into a circle and welded axially on the outer surface. The welding positions are in a straight line. The welded telescopic cover 1 wraps around multiple support rings 2. The multiple support rings 2 correspond to multiple outward folds 12 and support the multiple outward folds 12 that protrude outwards. When the telescopic cover 1 is installed on mechanical equipment for telescopic protection, the multiple outward folds 12 are supported by multiple support rings 2 when the telescopic cover 1 is stretched, which can prevent dents. The multiple inward folds 11 are in an inward convex shape and will unfold outwards when stretched, without dents, thereby ensuring the stability of the telescopic protective cover during the telescopic process.
[0030] Specifically, the telescopic cover 1 is made of rubber and is corrugated.
[0031] In this embodiment, the rubber telescopic cover 1 has high elasticity, making it easy to extend and retract. The telescopic cover 1 is formed into a corrugated tube shape by multiple inner folds 11 and multiple outer folds 12, which can ensure the telescopic effect.
[0032] Specifically, the telescopic cover 1 has a connection port 3 and a connector 4 fixedly connected to both ends.
[0033] In this embodiment, the connector 3 and connector 4 are used to fix both ends of the telescopic cover 1 to the mechanical equipment, so that the mechanical equipment can drive the telescopic cover 1 to extend and retract.
[0034] Specifically, a flange 5 is provided on the connector 4, and multiple connection holes 6 are provided between the flange 5 and the connector 4.
[0035] In this embodiment, the flange 5 is fitted onto the connector 4, which can press the connector 4 in place. With the help of multiple connection holes 6, screws are screwed into the mechanical equipment, making the installation of the connector 4 on the mechanical equipment more stable.
[0036] Working principle: The telescopic cover 1 is fixed to the mechanical equipment at both ends through the connecting port 3 and the connecting head 4. The telescopic cover 1 protects the mechanical equipment. When the mechanical equipment operates, the telescopic cover 1 can extend and retract stably through multiple inner folds 11 and multiple outer folds 12. Multiple support rings 2 support the telescopic cover 1 through multiple outer folds 12, ensuring the telescopic effect of the telescopic cover 1 on the mechanical equipment, so that the telescopic cover 1 can stably protect the mechanical equipment.
[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.
Claims
1. A telescopic protective cover formed by single-piece welding, comprising a telescopic cover (1), characterized in that: The telescopic cover (1) is welded along the axial direction. The telescopic cover (1) is provided with a plurality of inwardly protruding inner folds (11) and a plurality of outwardly protruding outer folds (12), and the inner folds (11) and outer folds (12) are distributed in an alternating manner. The telescopic cover (1) is wrapped with a plurality of support rings (2), and the plurality of support rings (2) correspond to the plurality of outer folds (12) respectively.
2. The telescopic protective cover formed by single-piece welding according to claim 1, characterized in that: The telescopic cover (1) is made of rubber and is corrugated.
3. The telescopic protective cover formed by single-piece welding according to claim 2, characterized in that: The telescopic cover (1) is fixedly connected to a connection port (3) and a connector (4) at both ends.
4. A telescopic protective cover formed by single-piece welding according to claim 3, characterized in that: A flange (5) is provided on the connector (4), and multiple connection holes (6) are provided between the flange (5) and the connector (4).