A hollow flexible tube with serrated inner wall
By setting a combination of short teeth and high teeth limiting structure on the inner wall of the hose, the problem of the hose being too loose or too tight when adapting to wires of different diameters is solved, thus achieving greater applicability and practicality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 何彦亭
- Filing Date
- 2025-05-19
- Publication Date
- 2026-06-30
Smart Images

Figure CN224437224U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of pipe technology, specifically a hollow flexible tube with serrated inner wall. Background Technology
[0002] Printable flexible tubes are made by printing text on the outer surface of a tube, then cutting it into sections, such as 20mm in length. The printed tubes are then threaded onto electrical wires, network cables, or other cables.
[0003] Because the electrical wires, network cables, and other cables on the market are not standardized. For example, even though the same cable is labeled as having a 3mm diameter, some are actually 3.5mm and others are 2.7mm. This results in some flexible conduits being too tight to thread the cable through, while others are too loose and easily slip off after being threaded.
[0004] To accommodate inconsistencies in cable types, the flexible hoses currently on the market have short teeth (all short teeth) on their inner wall, distributed circumferentially along the inner wall. However, the diameter tolerance range of these hoses with all short teeth is still very small, which can result in them being too loose or too tight after insertion, leading to poor practicality. Utility Model Content
[0005] The purpose of this invention is to provide a hollow flexible tube with serrated inner wall to solve the problems mentioned in the background art.
[0006] The technical solution adopted in this utility model is as follows:
[0007] A hollow flexible tube with protruding teeth on its inner wall includes a tube body, wherein the tube body is provided with a plurality of teeth, the plurality of teeth including teeth of at least two height specifications.
[0008] Preferably, a plurality of the teeth are continuously and uninterruptedly distributed along the length of the tube, and the tube is spirally wound and packaged.
[0009] Preferably, the plurality of teeth include short teeth and high teeth, wherein the number of high teeth is not greater than the number of short teeth.
[0010] Preferably, the inner diameter D of the tube is 1.5mm to 15mm, the height of the high tooth is H, and the height of the short tooth is h, wherein 0.1mm < h ≤ 1mm, and 1.5h ≤ H < 0.5D.
[0011] Preferably, the short teeth are arranged in an array along the length of the tube and in a ring array along the cross-section of the tube.
[0012] Preferably, any cross section of the tube body has at least two high teeth.
[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:
[0014] In this invention, in addition to the short teeth on the inner wall of the tube, some high teeth are added. When wires of different diameters are inserted into the tube, they can all be limited by the combination of high teeth and short teeth, thereby realizing the limitation of wires of different diameters, improving the applicability of the flexible tube and making it more practical. Attached Figure Description
[0015] Figure 1 This is a cross-sectional view of the present invention;
[0016] Figure 2 This is a diagram showing the usage state of this utility model;
[0017] In the diagram: 1. Tube body; 2. Short teeth; 3. High teeth. Detailed Implementation
[0018] The specific embodiments of this utility model are described in detail below.
[0019] The "range" disclosed in this utility model is defined by a lower limit and an upper limit. A given range is defined by selecting a lower limit and an upper limit, which define the boundaries of a particular range. Ranges defined in this way can include or exclude endpoints and can be arbitrarily combined; that is, any lower limit can be combined with any upper limit to form a range. For example, if a range of 10–50 is listed for a specific parameter, it is also expected that ranges of 10–40 and 20–50 are also included. Furthermore, if the minimum range values are listed as 1 and 2, and the maximum range values are listed as 3, 4, and 5, then the following ranges are all expected: 1–3, 1–4, 1–5, 2–3, 2–4, and 2–5. In this application, unless otherwise stated, the numerical range "a–b" represents a shortened representation of any combination of real numbers between a and b, where a and b are real numbers. For example, the numerical range "0–5" means that all real numbers between "0–5" have been listed herein; "0–5" is merely a shortened representation of these numerical combinations.
[0020] Unless otherwise specified, all embodiments and optional embodiments of this application can be combined to form new technical solutions.
[0021] Unless otherwise specified, all technical features and optional technical features of this application may be combined to form new technical solutions.
[0022] Unless otherwise specified, all steps in this application may be performed sequentially or randomly, preferably sequentially. For example, the method includes steps (a) and (b), indicating that the method may include steps (a) and (b) performed sequentially, or it may include steps (b) and (a) performed sequentially. For example, the mention that the method may also include step (c) indicates that step (c) may be added to the method in any order. For example, the method may include steps (a), (b), and (c), or it may include steps (a), (c), and (b), or it may include steps (c), (a), and (b), etc.
[0023] Unless otherwise specified, the terms "comprising" and "including" as used in this application can be open-ended or closed-ended. For example, "comprising" and "including" can mean that other components not listed may also be included, or that only the listed components may be included.
[0024] Unless otherwise specified, the reaction will proceed under normal temperature and pressure conditions.
[0025] Unless otherwise specified, all parts or percentages are by weight or by weight percentage.
[0026] In this invention, all the substances used are known substances that can be purchased or synthesized by known methods.
[0027] In this invention, all the devices or equipment used are conventional devices or equipment known in the art and are readily available.
[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.
[0029] Example:
[0030] A hollow flexible tube with serrated inner walls, such as Figure 1-2 As shown, it includes a tube body 1, and the tube body 1 is provided with a number of teeth, including teeth of at least two height specifications.
[0031] In one possible implementation, several teeth are continuously distributed along the length of the tube 1, and the tube 1 is spirally wrapped and packaged.
[0032] In one possible implementation, the teeth include short teeth 2 and high teeth 3, wherein the number of high teeth 3 is no greater than the number of short teeth 2.
[0033] In one possible implementation, both the short tooth 2 and the high tooth 3 adopt a conical structure.
[0034] In one possible implementation, the inner diameter D of the tube body 1 is 1.5mm to 15mm, the height of the high tooth 3 is H, and the height of the short tooth 2 is h, wherein 0.1mm < h ≤ 1mm, and 1.5h ≤ H < 0.5D.
[0035] In one possible implementation, the inner diameter D of the tube body 1 is 1.5 mm, the height of the high tooth 3 is H, and the height of the short tooth 2 is h, where h = 0.1 mm and H = 0.15 mm.
[0036] In one possible implementation, the inner diameter D of the tube body 1 is 8 mm, the height of the high tooth 3 is H, and the height of the short tooth 2 is h, where h = 0.5 mm and H = 0.75 mm.
[0037] In one possible implementation, the inner diameter D of the tube body 1 is 15 mm, the height of the high tooth 3 is H, and the height of the short tooth 2 is h, where h = 1 mm and H = 1.5 mm.
[0038] In one possible implementation, the inner diameter D of the tube body 1 is 1.5 mm, the height of the high tooth 3 is H, and the height of the short tooth 2 is h, where h = 0.4 mm and H = 0.75 mm.
[0039] In one possible implementation, the inner diameter D of the tube body 1 is 8 mm, the height of the high tooth 3 is H, and the height of the short tooth 2 is h, where h = 1 mm and H = 2 mm.
[0040] In one possible implementation, the inner diameter D of the tube body 1 is 15 mm, the height of the high tooth 3 is H, and the height of the short tooth 2 is h, where h = 1 mm and H = 4 mm.
[0041] In one possible implementation, the short teeth 2 are arranged in an array along the length of the tube body 1, and are arranged in a ring array along the cross-section of the tube body 1.
[0042] In one possible implementation, at least two high teeth 3 are provided on any cross section of the tube body 1.
[0043] By adopting the above technical solution:
[0044] Based on the short teeth 2 on the inner wall of the tube body 1, some high teeth 3 are added. When wires of different diameters are inserted into the tube body (the high teeth 3 / short teeth 2 are squeezed and deformed), they can all be limited by the combination of high teeth 3 and short teeth 2, thereby realizing the limitation of wires of different diameters, improving the applicability of the hose and making it more practical.
[0045] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A soft-walled, hollow tube having internal, toothed walls, characterised in that: Includes a tube body (1), wherein the tube body (1) is provided with a plurality of teeth, the plurality of teeth including teeth of at least two height specifications; Several of the teeth are continuously distributed along the length of the tube (1), and the tube (1) is spirally wrapped and packaged. The teeth include short teeth (2) and high teeth (3), wherein the number of high teeth (3) is not greater than the number of short teeth (2); The inner diameter D of the tube body (1) is 1.5mm to 15mm, the height of the high tooth (3) is H, and the height of the short tooth (2) is h, wherein 0.1mm < h ≤ 1mm, and 1.5h ≤ H < 0.5D.
2. A soft-walled, internally ribbed, hollow tube according to claim 1, wherein: The short teeth (2) are arranged in an array along the length of the tube (1) and are arranged in a ring array along the cross section of the tube (1).
3. A soft-walled, internally ribbed hose according to claim 2, wherein: The tube body (1) has at least two high teeth (3) on any cross section.