Flexible cable protection sleeve

Abstract

The invention provides a flexible cable protection sleeve, which comprises an inner sleeve provided with a notch penetrating through the two ends, and the outer wall of the inner sleeve is provided with an external thread; the outer sleeve comprises a first circular arc section, a third circular arc section and a second circular arc section which are continuous, the first circular arc section and the second circular arc section can be fixed in an overlapped mode and define a complete circle with the third circular arc section, and meanwhile complete internal threads are formed on the inner wall of the outer sleeve; the outer wall of the inner sleeve or the inner wall of the outer sleeve is a conical surface, so that when the outer sleeve is screwed to the inner sleeve from one end of the inner sleeve through matching of the inner thread and the outer thread, the compression of the notch in the outer sleeve is small.

Description

Technical Field

[0001] The invention belongs to the technical field of cable protection parts, and in particular relates to a flexible cable protection sleeve. Background Art

[0002] Cables are one of the most commonly used industrial products in the industry. They are widely used in different weapons, communication equipment, and control equipment. They play the role of connecting different devices and transmitting signals. Cables are mainly composed of conductors and insulation layers. Protecting the insulation layer of cables from damage during use and properly wrapping damaged cables are important prerequisites for ensuring the normal operation of different equipment.

[0003] During the use of cables, due to the use environment and manufacturing environment, the insulation layer often has defects such as corrosion, mechanical damage, scratches, cracks, friction damage, etc., which cause functional defects such as decreased mechanical strength, reduced insulation performance, electrical failures, signal interference, increased maintenance costs, reduced system reliability, shortened life, potential safety hazards, and impaired signal transmission. In order to ensure the normal operation of the equipment, cables with damaged insulation layers need to be promptly wrapped and protected.

[0004] For cables with damaged insulation layers, industrial tapes and heat shrink tubes are often used to wrap, repair and protect them.

[0005] Due to the characteristics of industrial tape and heat shrink tubing, there are many problems in the process of wrapping, repairing and protecting. For example, there are often temperature restrictions on the use of industrial tape. Industrial tape may lose its viscosity or performance at extreme temperatures. Industrial tape may not be able to withstand continuous mechanical stress, such as repeated stretching, bending or impact, which may cause the tape to break or delaminate; the viscosity of the tape may be affected by the characteristics of the bonded surface, resulting in insufficient durability, and may be worn and degraded after long-term use; the performance of the tape may also be affected by some special temperature and humidity and other environmental factors, such as salt spray, oil, fat and other environmental factors; if the tape is not applied correctly (for example, there is no proper surface cleaning, the tape is not stretched or fitted), it may cause its adhesion to fail; if the tape is exposed to adverse conditions during storage, such as extreme temperature, humidity or sunlight, it may affect its performance; and the industrial tape wrapping process is cumbersome, and it is not convenient for operation in some small spaces, and even the operating environment becomes messy due to the lack of adhesion of the industrial tape.

[0006] The use of heat shrink tubing for cable wrapping, repair and protection is also subject to temperature limitations during use. Heat shrink tubing has maximum and minimum operating temperatures. Exceeding this range may cause its performance to degrade or be damaged. If the heat shrink tubing is heated unevenly during use, it may cause uneven shrinkage of the heat shrink tubing, affecting the insulation and protection effects. At the same time, heat shrink tubing is subject to size limitations, and its size must match the object to be covered. The heat shrink tubing will have a certain length change when shrinking. Too large or too small will affect the use effect. Heat shrink tubing is easily damaged by mechanical means, and sharp objects may scratch or puncture the heat shrink tubing, causing damage to the protective layer. The heat shrink tubing needs to be inserted from one end of the cable, and is not applicable to the wrapping protection of cables that are connected and fixed at both ends.

[0007] Wrapping damaged cables for protection is an important means to ensure the normal operation of equipment, and the effectiveness of wrapping protection is also a key research topic. Summary of the invention

[0008] This application mainly solves the problem of convenient wrapping and protection of damaged cables. To solve this technical problem, a flexible cable protection sleeve is proposed. The specific technical solution is as follows:

[0009] Flexible cable protection sleeve, including:

[0010] An inner sleeve, wherein the inner sleeve has a notch extending through both ends, and an outer wall of the inner sleeve has an external thread;

[0011] and an outer sleeve, the outer sleeve comprising a continuous arc segment 1, an arc segment 3 and an arc segment 2, the arc segment 1 and the arc segment 2 being able to be overlapped and fixed to form a complete circle with the arc segment 3, and forming a complete internal thread on the inner wall of the outer sleeve;

[0012] The outer wall of the inner sleeve or the inner wall of the outer sleeve is a conical surface, so that when the outer sleeve is screwed onto the inner sleeve through the internal thread and the external thread at one end of the inner sleeve, the notch on the outer sleeve is compressed less.

[0013] Furthermore, both ends of the inner sleeve have threaded screw holes with external threads, and two outer sleeves are provided, which are screwed in from both ends of the inner sleeve.

[0014] Furthermore, the middle portion of the inner sleeve has an isolation section that divides the external thread.

[0015] Furthermore, the notch is a combination of one or more of a straight line, a wave, a tooth, and an arc.

[0016] Furthermore, the arc segment one and the arc segment two are fixed by means of a clamping block and a clamping groove, and the clamping block and the clamping groove are arranged on the fitting surfaces of the arc segment one and the arc segment two.

[0017] Furthermore, the clamping block is arranged on the first arc segment, and the clamping slot is arranged on the second arc segment;

[0018] Or the clamping block is arranged on the second arc segment, and the clamping slot is arranged on the first arc segment;

[0019] Or the clamping block and the clamping slot are arranged on the first arc segment and the second arc segment at the same time.

[0020] Furthermore, the block is an expansion structure whose size gradually increases from the root to the end.

[0021] Furthermore, the overlapping and fixing of the arc segment 1 and the arc segment 2 is positioned by a step surface, and the step surface is arranged at the connection between the arc segment 1 and the arc segment 3 or at the connection between the arc segment 2 and the arc segment 3.

[0022] Furthermore, when the arc segment 1 abuts against the step surface at the connection between the arc segment 2 and the arc segment 3, a notch groove is provided on the end surface of the arc segment 1.

[0023] The beneficial effects of the present invention are as follows: the sleeve structure of the present invention is composed of an outer sleeve and an inner sleeve, and adopts a threaded tightening and conical diameter reduction method to achieve locking and separation between the inner and outer sleeves and between the sleeve and the cable. The outer sleeve and the inner sleeve are both made of high-temperature resistant elastic material and can be opened and closed under the action of external force, so that the cable can be quickly, conveniently and completely wrapped and protected in any environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 What is shown is the structural schematic diagram of the inner casing;

[0025] Figure 2 What is shown is the structural schematic diagram of the outer sleeve;

[0026] Figure 3 What is shown is a schematic diagram of the fixed structure of arc segment 1 and arc segment 2;

[0027] Figure 4 What is shown is a schematic diagram of limiting the overlapping state of arc segment 1 and arc segment 2;

[0028] Figure 5 Another schematic diagram showing the overlapping state of the limiting arc segment 1 and the arc segment 2 is shown;

[0029] Figure 6 Shown is another schematic diagram of limiting the overlapping state of the first arc segment and the second arc segment;

[0030] Figure 7 What is shown is a schematic diagram of one end of the arc segment;

[0031] Figure 8The diagram shows a state where the outer sleeve and the inner sleeve are combined to wrap the cable. DETAILED DESCRIPTION

[0032] In the following description, certain specific details are set forth in order to provide a thorough understanding of various embodiments. However, it will be appreciated by those skilled in the art that the present invention may be practiced without these details. In other cases, well-known structures are not shown or described in detail to avoid unnecessarily obscuring the description of the embodiments. Unless the context otherwise requires, throughout the specification and the appended claims, the word "comprising" shall be interpreted in an open, inclusive sense, i.e., as "including but not limited to".

[0033] "One embodiment" or "embodiment" mentioned throughout this specification means that in at least one embodiment, specific features, structures or characteristics related to the embodiment are included. Therefore, the phrases "in one embodiment" or "in an embodiment" appearing in various places throughout this specification do not necessarily all refer to the same embodiment. In addition, specific features, structures or characteristics can be combined in any suitable manner in one or more embodiments. In addition, as used in this specification and the appended claims, the singular forms "one / kind" and "the" include plural indicators unless the context clearly dictates otherwise. It should also be noted that the term "or" is generally used in its meaning that includes "and / or" unless the context clearly dictates otherwise.

[0034] The flexible cable protection sleeve in the present application is a mounting structure, including an inner sleeve 10 and two outer sleeves 20, and the inner sleeve 10 and the outer sleeve 20 are both non-closed sleeves, that is, each has an opening along its axial direction, and the outer sleeve 20 can be formed as a fixed closed sleeve, and is tightened with the inner sleeve 10 by threaded cooperation. In the process of tightening the two outer sleeves 20 from both ends of the inner sleeve 10, the outer sleeve 20 will generate radial pressure on the inner sleeve 10, so that the opening of the inner sleeve 10 is reduced until the cable inside the inner sleeve 10 is completely wrapped, such as Figure 8 As shown, the center part is the cable that is wrapped and protected.

[0035] like Figure 1 As shown, the inner sleeve 10 has a notch 10a running through both ends, and the outer wall of the inner sleeve 10 has two sections of external threads 10b, with an isolation section 10c between the two sections of external threads 10b. The two sections of external threads 10b are separated from each other by the isolation section 10c, so that the two outer sleeves 20 can be screwed in from both ends of the inner sleeve 10 and stop when they are screwed to the isolation section 10c.

[0036] The shape of the notch 10a is not limited to a straight line, but can also be an irregular shape such as a wave shape or a tooth shape. The purpose of setting the notch 10a is only to allow the inner sleeve 10 to be opened and put on the outside of the cable that needs to be protected, avoiding the inconvenience of the closed sleeve structure that requires the cable to be inserted from the end. At the same time, the notch 10a makes the inner sleeve 10 have the characteristic of a variable inner diameter. Under external pressure, the width of the notch 10a can be reduced to reduce the inner diameter of the inner sleeve 10 to match the cable to produce a wrapping effect on it.

[0037] like Figure 2 As shown, the outer sleeve 20 includes an arc segment 1 20a, an arc segment 20b and an arc segment 3 20c. The arc segment 1 20a and the arc segment 20b are arranged at both ends of the arc segment 3 20c, and the arc segment 1 20a and the arc segment 20b can be overlapped and enclosed with the arc segment 3 20c to form a complete circle. When the arc segment 1 20a and the arc segment 20b are overlapped and enclosed with the arc segment 3 20c to form a complete circle, the inner wall of the outer sleeve 20 can form a complete internal thread, and the internal thread cooperates with the external thread 10b so that the outer sleeve 20 can be screwed onto the inner sleeve 10.

[0038] The outer diameter of the inner sleeve 10 gradually decreases toward the end along the isolation section 10c, so that during the screwing process of the outer sleeve 20, the outer diameter of the inner sleeve 10 changes, which generates a gradually increasing radial pressure on the inner sleeve 10, and also causes the width of the notch 10a of the inner sleeve 10 to gradually decrease until the notch 10a is closed.

[0039] Another alternative solution is that the inner diameter of the outer sleeve 20 gradually increases from one end to the other end, and when the outer sleeve 20 is screwed in, the end with a smaller inner diameter is kept away from the isolation section 10c, so that when the outer sleeve 20 is screwed in, due to the change in the inner diameter of the outer sleeve 20, a gradually increasing radial pressure is generated on the inner sleeve 10, which also causes the width of the notch 10a of the inner sleeve 10 to gradually decrease until the notch 10a is closed.

[0040] The difference between the above two schemes is that, during the screwing-in process of the outer sleeve 20, the main parts that cause the inner sleeve 10 to be forced to retract are different. When the outer diameter of the inner sleeve 10 gradually decreases along the isolation section 10c to the end, the main part that causes the inner sleeve 10 to be forced to retract is the middle part of the inner sleeve 10. When the inner diameter of the outer sleeve 20 gradually increases from one end to the other end, the main part that causes the inner sleeve 10 to be forced to retract is the end of the inner sleeve 10.

[0041] A fixing structure is provided on the overlapping contact surfaces of the arc segment 1 20a and the arc segment 2 20b. The fixing structure adopts a snap-fit ​​fixing method. The arc segment 1 20a and the arc segment 2 20b are fixed by setting a clamping block 21a and a clamping groove 21b to maintain the circular state of the outer sleeve 20.

[0042] The block 21a and the slot 21b can be respectively arranged on the arc segment 1 20a and the arc segment 20b, such as setting the block 21a on the arc segment 1 20a and setting the corresponding slot 21b on the arc segment 20b; or setting the slot 21b on the arc segment 1 20a and setting the corresponding block 21a on the arc segment 20b.

[0043] The block 21a and the slot 21b can also be set on the arc segment 1 20a and the arc segment 20b at the same time, that is, the block 21a and the slot 21b are set on the arc segment 1 20a, and the block 21a and the slot 21b are also set on the arc segment 20b, and the block 21a on the arc segment 1 20a corresponds to the slot 21b on the arc segment 2 20b, and the slot 21b on the arc segment 1 20a corresponds to the block 21a on the arc segment 2 20b.

[0044] like Figure 3 As shown, a clamping block 21a is provided on the inner arc surface of the arc segment 1 20a, and a clamping groove 21b is provided on the outer arc surface of the arc segment 20b.

[0045] In order to improve the fixing degree of the arc segment 1 20a and the arc segment 2 20b, the clamping block 21a can be set as an expansion structure of any shape, that is, the overall size of the clamping block 21a gradually increases from the root to the end, such as a trapezoid.

[0046] The matching mode of setting the block 21a and the slot 21b to fix the arc segment 1 20a and the arc segment 2 20b can simultaneously meet the requirements of operational convenience and retention stability. The matching mode of the block 21a and the slot 21b is radial, and during the screwing-in process of the outer sleeve 20, the tensioning force generated by the extrusion of the outer sleeve 20 and the inner sleeve 10 causes the block 21a to be subjected to force in the tangential direction, so it is difficult for the block 21a to be separated from the slot 21b during the screwing-in process, and the closedness and integrity of the outer sleeve 20 can be better maintained. When disassembling, the block 21a can be separated from the slot 21b by pulling the arc segment 1 20a outwards. When fixing, the arc segment 1 20a is attached to the arc segment 2 20b and then pressed to embed the block 21a into the slot 21b.

[0047] When the outer sleeve 20 is enclosed to form a complete circle, the inner wall must simultaneously form a complete internal thread. Therefore, the outer sleeve 20 is kept in a closed and fixed state so that the inner wall can form a complete internal thread, that is, the overlapping state of the arc segment 1 20a and the arc segment 2 20b should also be limited.

[0048] like Figure 4As shown, one way is to form a step surface 22a at the connection between the arc segment 1 20a and the arc segment 3 20c, and make the length of the arc segment 20b greater than or equal to the arc segment 1 20a. When fixing the arc segment 1 20a and the arc segment 20b, make the arc segment 20b contact the step surface 22a, so that the overlapping state of the arc segment 1 20a and the arc segment 20b can be completely determined, and then the arc segment 1 20a is made to fit the arc segment 20b and then the card block 21a is pressed to embed it into the card slot 21b.

[0049] like Figure 5 As shown, another way is to form a step surface 22b at the connection between the arc segment 20b and the arc segment 3 20c, and make the length of the arc segment 1 20a greater than or equal to the arc segment 20b. When fixing the arc segment 1 20a and the arc segment 20b, the arc segment 1 20a is made to contact the step surface 22b, so that the overlapping state of the arc segment 1 20a and the arc segment 20b can be completely determined, and at the same time, the arc segment 1 20a is attached to the arc segment 20b, and the card block 21a is pressed to embed it into the card slot 21b.

[0050] Another way is to set step surface 1 22a and step surface 22b at the same time, and make the length of arc segment 1 20a equal to arc segment 20b. When fixing arc segment 1 20a and arc segment 20b, make arc segment 20b contact with step surface 1 22a, and make arc segment 1 20a contact with step surface 22b, and press to make the block 21a embed into the slot 21b.

[0051] When the arc segment 1 20a is used to abut against the step surface 22b, since the step surface 22b has a sealing effect on the arc segment 1 20a, it is difficult to apply force to the arc segment 1 20a during disassembly. Therefore, a notch groove 23 is provided on the end surface of the arc segment 1 20a. Figure 7 As shown, by inserting a tool into the notch groove 23, force can be applied to open the arc segment 1 20a.

[0052] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A flexible cable protection sleeve, characterized in that: include: An inner sleeve, wherein the inner sleeve has a notch extending through both ends, and an outer wall of the inner sleeve has an external thread; and an outer sleeve, the outer sleeve comprising a continuous arc segment 1, an arc segment 3 and an arc segment 2, the arc segment 1 and the arc segment 2 being able to be overlapped and fixed to form a complete circle with the arc segment 3, and forming a complete internal thread on the inner wall of the outer sleeve; The outer wall of the inner sleeve or the inner wall of the outer sleeve is a conical surface, so that when the outer sleeve is screwed onto the inner sleeve through the internal thread and the external thread at one end of the inner sleeve, the notch on the outer sleeve is compressed less.

2. The flexible cable protection sleeve according to claim 1, characterized in that: Both ends of the inner sleeve are provided with threaded screw openings with external threads, and two outer sleeves are provided, which are screwed in from both ends of the inner sleeve.

3. The flexible cable protection sleeve according to claim 2, characterized in that: The middle part of the inner sleeve is provided with an isolation section for dividing the external threads.

4. The flexible cable protection sleeve according to claim 1, characterized in that: The notch is in a straight line shape, a wave shape, a tooth shape, an arc shape or a combination of one or more of the above.

5. The flexible cable protection sleeve according to claim 1, characterized in that: The arc segment one and the arc segment two are fixed by means of a clamping block and a clamping groove, and the clamping block and the clamping groove are arranged on the fitting surfaces of the arc segment one and the arc segment two.

6. The flexible cable protection sleeve according to claim 5, characterized in that: The clamping block is arranged on the first arc segment, and the clamping slot is arranged on the second arc segment; Or the clamping block is arranged on the second arc segment, and the clamping slot is arranged on the first arc segment; Or the clamping block and the clamping slot are arranged on the first arc segment and the second arc segment at the same time.

7. The flexible cable protection sleeve according to claim 5, characterized in that: The block is an expansion structure whose size gradually increases from the root to the end.

8. The flexible cable protection sleeve according to claim 1, characterized in that: The overlapping and fixing of the arc segment 1 and the arc segment 2 is positioned by a step surface, and the step surface is arranged at the connection between the arc segment 1 and the arc segment 3 or the connection between the arc segment 2 and the arc segment 3.

9. The flexible cable protection sleeve according to claim 8, characterized in that: When the arc segment 1 abuts against the step surface at the connection between the arc segment 2 and the arc segment 3, a notch groove is provided on the end surface of the arc segment 1.

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