Teflon wire harness sleeve

Abstract

The invention belongs to the technical field of electric wire sleeves, and discloses a Teflon wire harness sleeve which is used for being arranged outside an assembled and formed electric wire harness to form a package and comprises a Teflon sleeve layer and a telescopic net layer which are used as sheet bodies, the Teflon sleeve layer and the telescopic net layer are both curled to form a sleeve structure, the telescopic net layer is located in the Teflon sleeve layer, and the Teflon sleeve layer and the telescopic net layer are arranged in the Teflon sleeve layer. The curled and folded edges of the Teflon sleeve layer and the telescopic net layer are fixed on a group of connecting strips extending along the length direction of the sleeve structure to form sleeves which are nested inside and outside, and a plurality of snap fasteners which are buckled with each other to enable the two connecting strips to be attached and fixed are arranged on the connecting strips at equal intervals. The structure is stable, and secondary replacement and installation are convenient.

Description

Technical Field

[0001] The invention belongs to the technical field of wire harness sleeves, and in particular relates to a Teflon wire harness sleeve. Background Art

[0002] In the field of mechanical automation, wire harnesses are usually used in some automation systems for uniform connection and branching, so as to have a high degree of regularity and avoid the influence of irregular unconstrained flying wires on the relative movement of automation equipment. Such wire harnesses will be bound by sleeves or other structures, such as rubber sleeves, strapping belts, telescopic net sleeves, etc. The external binding structure makes the wire harness have a high degree of integrity. In addition, some automation equipment will use armored sleeves, corrugated tubes or drag chains as the protective structure of the outer layer of the wire harness. This outer structure can not only bind the wire harness, but also move back and forth to a certain extent with the action mechanism, and has a high degree of protection. At the same time, in some complex automation machinery and equipment, the additional functions of electromagnetic shielding and thermal insulation and flame retardancy will also be considered, and corresponding protective materials will be set on the surface of the wire harness.

[0003] However, most of the harness protection structures mentioned above are structures that have been arranged when the automated mechanical equipment or automated system is installed, because the above-mentioned harness protection structures are usually integrated sleeve structures, which cannot be nested and installed on the existing already installed equipment harness, and must be nested and installed after one end of the harness is removed. There is also a method of including it later through polymer fabrics in the prior art, but this method has poor integrity and a low service life, and requires regular inspection and replacement. Now there is a need for a harness sleeve structure that is convenient for later installation or replacement, has high disassembly and assembly efficiency, and has high stability and can be used for a long time. Summary of the invention

[0004] In order to solve the problems existing in the prior art, the present invention provides a double-layer sleeve structure, which realizes the external sheathing of the connecting wire harness through snap-on curling. It not only has a convenient disassembly and assembly process, but also can provide good protection performance and restraint effect while maintaining lightweight characteristics through the different characteristics of the inner and outer layer structures.

[0005] The technical solution adopted by the present invention is: In a first aspect, the present invention provides a Teflon wire harness sleeve, which is used to be arranged on the outside of an assembled wire harness to form a package, including a Teflon sleeve layer and a telescopic mesh layer as a sheet body, the Teflon sleeve layer and the telescopic mesh layer are both curled to form a sleeve structure, the telescopic mesh layer is inside the Teflon sleeve layer, and the curled and folded edges of the Teflon sleeve layer and the telescopic mesh layer are both fixed on a group of connecting strips extending along the length direction of the sleeve structure to form an inner and outer nested sleeve, and a plurality of snaps that are equidistantly arranged on the connecting strips and interlocked to make the two connecting strips fit and fix.

[0006] It is worth mentioning that the sleeve is a buckle-type sleeve structure with an opening along the length direction, that is, a gap with a group of connecting strips, through which the inner and outer layers of curled materials are closed. The so-called snaps are structures symmetrically arranged on two connecting strips of the same group, and the snaps are fastened by people pressing against two corresponding snaps with their hands.

[0007] Since the Teflon material itself has high structural strength and small expansion and contraction bending performance, it can be used as a better lightweight protective material to be set on the outer layer of the wiring harness. The inner expansion mesh layer generally uses polyester or nylon expansion mesh material, which can wrap the nested wiring harnesses from the inner layer, thereby achieving the effect of binding multiple wiring harnesses.

[0008] This design is mainly for the wiring harness that has been assembled, such as some electronically controlled mechanical equipment, such as industrial machine tools or robotic arms. This type of automation equipment will be equipped with longer cables for some walking mechanisms, and some armored protection structures will be provided on the outside of the cables, such as drag chains. However, the bending direction of the drag chain itself is fixed and the weight is heavy. The wiring harness sleeve in this application can replace the existing corrugated tube and drag chain, and can be directly nested and installed without disassembling the wiring harness, and can be nested and fixed by snapping together.

[0009] In combination with the first aspect, the present invention provides a first embodiment of the first aspect, wherein the Teflon sleeve layer and the telescopic mesh layer are curled and nested to form a main sleeve, and also include a branch line telescopic mesh tube for sleeveing ​​a branch line branched from the wiring harness, wherein the branch line telescopic mesh tube is formed by buckling two telescopic sheets that are telescopic in a direction perpendicular to the length, and side strips are respectively provided on the two side edges in the length direction of the telescopic sheet, and a plurality of snaps are provided on the side strips, and the two telescopic sheets are buckled together by the snaps provided on the side strips to form a sleeve structure.

[0010] It is worth mentioning that the characteristic of the wiring harness is that it includes many cables of different specifications and connection relationships. The main cable is used to connect two main components, but the wiring harness also contains other branches, that is, they may be connected to the same module as the main cable, but the other end is connected to two ports respectively. At this time, it is necessary to branch out the branch line in the wiring harness, that is, to separate the straight line from the above-mentioned main sleeve, but the protection requirements of these straight lines are reduced, and the branch telescopic network tube can be made of the same material as the telescopic network layer but with a smaller size.

[0011] The two telescopic sheets are buckled together, which is different from the method of directly curling a single telescopic sheet. It is equivalent to setting up two telescopic mesh structures to buckle together and wrap the branch line inside. This setting method can use the original Teflon sleeve layer and telescopic mesh layer to extend a straight line in the gap between adjacent snaps, and at the same time, the branch line telescopic sleeve can penetrate into the gap and achieve a "seamless" nested connection through clamping with the snaps or other methods. The so-called side strips are made of the same material as the connecting strips, but the size is smaller than the connecting strips. Similarly, the snap button structure on the side strips is the same as the snap buttons set on the connecting strips, but the size is reduced.

[0012] In combination with the first embodiment of the first aspect, the present invention provides a second embodiment of the first aspect, wherein the end side strips of the branch-line telescopic network tube are provided with holes for snaps to pass through, and the two groups of holes are respectively arranged on two adjacent and snap-connected groups of snaps on the connecting strip.

[0013] It is worth explaining that the so-called sleeve hole structure refers to two holes directly opened at the end of the side strip. Since the side strip itself has a non-retractable structural feature, in order to enable the end of the branch-line telescopic network tube to penetrate into the connecting gap of the main sleeve to achieve a "seamless" connection, the position of the gap where a straight line needs to be passed is first determined, and then the two groups of adjacent snaps at the gap are disassembled, and the sleeve holes of the corresponding branch-line telescopic network tube are sleeved on the inner surface of the corresponding snaps. Since the snaps themselves will form a columnar structure with a certain thickness between the two connecting strips when fastened, after the sleeve holes are sleeved on the columnar structure and the two snaps are fastened again, a fixed connection relationship is formed between the end of the branch-line telescopic network tube and the main sleeve. Although the size of the branch-line telescopic network tube is smaller than that of the main sleeve, it has a telescopic performance perpendicular to the length direction. Therefore, when connecting two adjacent snaps with a certain spacing, the end of the branch-line telescopic network tube will stretch, and the part that loses the limiting effect of the snaps will gradually shrink to form a branch-line sleeve structure that fits the branch line.

[0014] In combination with the first aspect, the present invention provides a third implementation of the first aspect, wherein the Teflon sleeve layer is a mesh sheet body formed by weaving Teflon threads, and the telescopic mesh layer is a telescopic sheet body formed by weaving polyester fiber threads and rubber threads.

[0015] In combination with the third embodiment of the first aspect, the present invention provides a fourth embodiment of the first aspect, wherein the cross-sectional size of the first sleeve formed by curling the Teflon sleeve is larger than twice the maximum cross-sectional size formed after the wire harness is bound, and the cross-sectional size of the second sleeve formed by curling the telescopic mesh layer in a stress-free state is smaller than half of the maximum cross-sectional size formed after the wire harness is bound.

[0016] In combination with the first aspect or several embodiments of the first aspect, the present invention provides a fifth embodiment of the first aspect, wherein the snap button includes a structure that passes through and connects and clamps from both sides of the connecting strip, and the end of the snap button on the inner side of the connecting strip is rotatably connected to a swivel seat, and the swivel seat is provided with a slot and a protrusion, and the protrusion on one swivel seat is inserted into the slot on the other swivel seat to achieve snap connection.

[0017] In combination with the fifth embodiment of the first aspect, the present invention provides a sixth embodiment of the first aspect, wherein the swivel seat is a cylindrical structure, and has a semicircular slot and a semicircular protrusion with equal diameters on the inner side, a buckle strip is provided on the protrusion, and a buckle groove that cooperates with the buckle strip is provided at the corresponding position of the slot.

[0018] In combination with the sixth implementation of the first aspect, the present invention provides a seventh implementation of the first aspect, wherein the protrusion is a hollow structure, and when the protrusion is inserted into the corresponding slot, it elastically recesses into the hollow part to reduce the outer diameter of the end.

[0019] In combination with the first aspect or several embodiments of the first aspect, the present invention provides an eighth embodiment of the first aspect, wherein a shielding layer is provided in the telescopic mesh layer, and the shielding layer is composed of a plurality of spiral metal wires.

[0020] In combination with the first aspect or several embodiments of the first aspect, the present invention provides a ninth embodiment of the first aspect, wherein the bonding surface of the connecting strip has adhesive.

[0021] The beneficial effects of the present invention are: (1) The present invention adopts a double-layer structure design of different materials, and adopts a same set of connecting strips to form a detachable double-layer sleeve structure by curling with snaps. It is not only convenient for disassembly and assembly, but also can better restrain the wire harness by utilizing the good telescopic properties of the inner telescopic mesh layer. The outer Teflon sleeve layer is light and has high structural strength, which can provide good protection performance for the inner structure and the wire harness, and is scratch-resistant and corrosion-resistant. (2) The present invention sets appropriate sizes of the inner and outer sleeves so that the inner telescopic mesh layer can fit on the surface of the wire harness and maintain a good binding effect even when the wire harness is bent to a large extent. There is a large gap between the outer Teflon sleeve and the wire harness wrapped by the telescopic mesh layer, so that the wire harness can be bent to a large extent in the Teflon sleeve, thereby reducing the bending degree of the Teflon sleeve, making better use of the material properties of the Teflon sleeve, and the empty area in the middle can also play a good buffering role during impact. (3) The present invention connects the main sleeve and wraps the branch line branched from the wire harness through the branch line telescopic network tube provided, thereby utilizing the gap between adjacent snaps of the connecting strip of the main sleeve itself to flexibly arrange the branch position of the branch line. At the same time, combined with the provided sleeve hole structure, a group of snaps that are fastened together can be used as a fixing point to achieve a "seamless" connection of the main sleeve. In some application environments that require a better shielding effect, this "seamless" connection method has a better shielding effect when combined with the shielding layer material. At the same time, it is different from the prior art that requires manual sheathing of the coiled material at the branch line, and has a more efficient and stable installation and connection method; (4) The present invention optimizes the snap button structure so that its inner end has a symmetrical swivel seat structure. Each swivel seat is provided with a protrusion that cooperates with the slot, regardless of male or female head or left or right. This provides convenience for the installation of two snap-fit ​​branch line telescopic network pipes for branch line arrangement, and cooperates with its rotation characteristics without distinguishing between left and right specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of a Teflon wiring harness sleeve being sleeved on a wiring harness of a robotic arm in an embodiment of the present invention; Figure 2 is a first isometric view of a Teflon harness sleeve portion in an embodiment of the present invention; Figure 3 is a side view of a Teflon wiring harness sleeve portion in an embodiment of the present invention; Figure 4 is a front view of a Teflon wiring harness sleeve portion in an embodiment of the present invention; Figure 5 is a second isometric view of the Teflon wiring harness sleeve portion in an embodiment of the present invention; Figure 6 The present invention Figure 5 A is a partial enlarged schematic diagram in FIG.

[0023] In the figure: 1-Teflon sleeve layer, 2-line branching telescopic network tube, 3-telescopic network layer, 4-connecting strip, 5-snap button, 6-swivel seat, 7-slot, 8-bump, 9-snap groove, 10-snap strip, 11-sleeve hole. DETAILED DESCRIPTION

[0024] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0028] In the description of this application, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, if the terms "first", "second", etc. appear in the description of this application, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0029] In addition, if the terms "horizontal" or "vertical" appear in the description of this application, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0030] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. Example

[0031] The present embodiment discloses a Teflon wire harness sleeve structure, which is mainly used in the wrapping protection of wire harnesses, wherein the wire harnesses include various automated mechanical equipment such as large-scale engineering operations and transportation vehicles, automated lathes, and automated robotic arms. It is characterized by having multiple cables, and mainly connecting action mechanisms. In some scenarios, a certain redundant length is required to be able to expand and contract with the movement, and the wire harness itself also has several branches, and different branch positions are set according to different connected ports.

[0032] Specifically, refer to Figure 1 The Teflon wire harness sleeve structure in this embodiment includes a main sleeve and a secondary sleeve, wherein the main sleeve is used to be sleeved outside the main wire harness to connect two or more main conductive modules. The secondary sleeve is mainly sleeved on the branch line branched from the wire harness to connect the main sleeve.

[0033] The main sleeve is a double-layer nested structure, which includes an outer Teflon sleeve layer 1 and an inner telescopic mesh layer 3.

[0034] The Teflon sleeve layer 1 and the telescopic net layer 3 are both formed by curling a curved plate with a certain length. The curling openings of the two layers of material are in the same direction, and a uniformly connected connecting strip 4 is provided on the two sides of the long strip opening. The connecting strip 4 is made of a non-scalable and extensible material, but has a bending property. The connecting strip 4 is used for edge sealing and fixing. The sides of the Teflon sleeve layer 1 and the telescopic net layer 3 are fixed on two groups of connecting strips 4, and then a detachable connection of the two connecting strips 4 is formed by a connector provided on the connecting strips 4.

[0035] Furthermore, the connecting parts are a plurality of snap button 5 structures arranged at equal intervals along the length direction of the connecting strip 4, and corresponding snap button 5 structures are respectively provided on the two connecting strips 4. The snap buttons 5 of the connecting strips 4 on both sides are clamped by fingers from the outside so as to be buckled and connected with each other, thereby fixing the two connecting strips 4 against each other, and forming a nested sleeve structure with two layers of curled materials and sleeved on the outside of the wiring harness.

[0036] The structure of the snap buttons 5 is similar to the existing button structure of clothing, and can adopt a circular snap-fit ​​method with male and female heads. By setting appropriate materials and sizes, a stable connection relationship can be formed after snap-fitting, and the connection state can be maintained as the wiring harness swings. Gaps are formed between adjacent snap buttons 5, which can facilitate the branch lines in the wiring harness to pass through and connect to external devices.

[0037] Furthermore, the secondary sleeve in this embodiment is a branch-line telescopic network tube 2, which uses the same woven telescopic material as the telescopic mesh layer 3, has high elasticity and telescopic performance, and can cover the branch line. In order to cooperate with the method of forming a seamless connection with the main sleeve, the branch-line telescopic network tube 2 in this embodiment is formed by buckling two telescopic sheets of the same specifications and materials. Each telescopic sheet can be regarded as a structure similar to the telescopic mesh layer 3, with a longer length and a smaller width. The two sides in the length direction are respectively provided with non-retractable and extensible side strip materials, and the side strip materials are also provided with a number of snap buttons 5 structures arranged at equal intervals along the length direction. The side edges of the two telescopic sheets are pressed and fixed by the snap buttons 5. Different from the telescopic mesh layer 3 structure, which is a single-layer mesh material curled to form a sleeve, the branch-line telescopic network tube 2 is a sleeve structure formed by buckling the sides of two independent telescopic sheets.

[0038] The snap button 5 structure of the branch line telescopic network tube 2 is the same as the snap button 5 structure on the connecting strip 4, but the size is smaller, which is suitable for covering and fixing a single branch line or a branch line with a smaller cross-sectional size. A sleeve hole 11 is provided at the end side strip of the branch line telescopic network tube 2. The size of the sleeve hole 11 is the same as the external size of the snap button 5, and can be sleeved on the outside of a group of snap buttons 5 that have been fastened on the connecting strip 4. When connected, the end of the branch line telescopic network tube 2 with the sleeve hole 11 is inserted into the gap between the two connecting strips 4, and then the side strip of the branch line telescopic network tube 2 is fixed by the snap button 5, thereby realizing a seamless connection between the branch line telescopic network tube 2 and the main sleeve.

[0039] During installation, the plan will be confirmed based on the existing wiring harness direction and branching. First, the Teflon sleeve 1, branching telescopic mesh tube 2 and telescopic mesh layer 3 materials are cut to a certain length. The Teflon sleeve 1 and telescopic mesh layer 3 only need to be cut according to the length. They have been connected to two sets of connecting strips 4 at the factory to form an inner and outer double-layer sleeve material.

[0040] Then, starting from one end of the main trunk of the harness, the double-layer material of the main sleeve is directly curled and nested on the harness, and then the snaps 5 are fastened in sequence. When nesting, since the telescopic mesh layer 3 has good ductility, it will be stretched by external force first. When the snaps 5 are fastened, the telescopic mesh layer 3 in the corresponding area loses the external force and the harness will be tightly wrapped, and there is a certain gap between the outer Teflon sleeve layer 1 and the telescopic mesh layer 3.

[0041] When encountering a branch line during installation, the outlet position is adjusted by rotation so that all branch lines on the harness are located at the gap of the connecting strip 4. Then the position of the main sleeve is adjusted so that each branch line is located between the two snaps 5. Then, when the snaps 5 at the corresponding positions are engaged, the two telescopic sheets are sleeved at their sleeve holes 11 on the outer end faces of the snaps 5, and the ends of the two telescopic sheets are engaged so that the branch line is wrapped to form a branch line telescopic network tube 2. Then, the two snaps 5 on both sides of the gap of the branch line are engaged so that the ends of the branch line telescopic network tube 2 are restricted within the gap of the snaps 5 of the main sleeve. Then, the snaps 5 of the branch line telescopic network tube 2 that are sleeved outside the branch line are gradually engaged to achieve installation.

[0042] Further, refer to Figure 2-Figure 6 In this embodiment, a wiring harness of an automated robotic arm structure on an existing automobile manufacturing assembly line is sleeved for protection, so as to replace a drag chain structure that is worn out due to long-term use.

[0043] Specifically, refer to Figure 2 The figure shows a partial structure of the Teflon wiring harness sleeve. The shape in the figure is that the main sleeve is curled and not fastened. At the same time, there is an end of a branch line telescopic network tube 2, which is used to show the connection method between the branch line telescopic network tube 2 and the main sleeve where the branch line appears.

[0044] Among them, the Teflon sleeve 1 is the outermost material of the main sleeve. In this embodiment, a mesh material formed by weaving Teflon silk threads is used, and a cross-sectional size is formed by curling, which is more than twice the maximum cross-sectional size of the wire harness in the gathered state. This size limitation allows a larger gap to be formed between the Teflon sleeve 1 and the internal wire harness when the outer layer structure of the main sleeve is curled to form the outer layer structure, thereby providing impact resistance. At the same time, the wire harness can also have a certain bending amplitude in the Teflon sleeve 1. This structural design allows the bending amplitude of the Teflon sleeve 1 itself to be much smaller than the bending of the wire harness at a certain bending angle, thereby adapting to the relatively hard characteristics of the Teflon material itself.

[0045] The inner telescopic mesh layer 3 is made of mesh cloth woven from polyester fibers, and rubber threads are added to the polyester fibers to provide elastic stretchability. Metal threads are also spirally wound in the polyester fibers to form a shielding layer. When the telescopic mesh layer 3 is curled to form a sleeve, its cross-sectional size is much smaller than the maximum cross-sectional size of the wire harness in the bundled state, generally less than half of it, so that the telescopic mesh layer 3 can better wrap the wire harness, form elastic binding force through its rubber threads, and better fit the surface of the wire harness when the wire harness is bent. The shielding layer formed by the metal threads can protect the wire harness from interference from the external electromagnetic environment.

[0046] The side edge of the telescopic mesh layer 3 and the side edge of the Teflon sleeve layer 1 are fixedly connected to the connecting strip 4 on the corresponding side, and the connection can be achieved by hot-melt connection, adhesive connection, or mechanical clamping and fixing during the production process. The connecting strip 4 itself is made of Teflon material, that is, it is integrally formed with the Teflon sleeve layer 1, and then the telescopic mesh layer 3 is connected to the inner long side of the connecting strip 4.

[0047] Furthermore, a plurality of snap buttons 5 are provided on the surface of the connecting strip 4, and the snap buttons 5 are symmetrically arranged. Figure 3 It can be seen from the side view that two groups of snap buttons 5 are symmetrically arranged on the upper and lower connecting strips 4. Each snap button 5 is a quasi-H-shaped cylindrical structure, including enlarged ends on both sides and a connecting shaft in the middle. The connecting shaft passes through the through hole provided on the connecting strip 4 and is clamped and fixed on the connecting strip 4 by the enlarged ends on both sides. In a specific implementation, the snap button 5 can be designed as two buckled parts, and the buckled clamping connection is achieved by passing through the through hole.

[0048] exist Figure 3 The upper and lower surfaces of the connecting strip 4 in the embodiment of the present invention are provided with a circular arc surface by the snap button 5, so that the operator can touch and press the snap button 5 with his fingers. On the inner side of the two connecting strips 4, the snap button 5 is rotatably connected with a rotating seat 6.

[0049] Reference Figure 6It can be seen that the rotating seat 6 is cylindrical, one end of which is rotatably connected to the inner end face of the button 5, and the other end face is provided with a semicircular protrusion 8 and a semicircular slot 7, the protrusion 8 and the slot 7 are two parts of a circular groove, respectively, and have the same radius size. The protrusion 8 of one rotating seat 6 can be correspondingly inserted into the slot 7 of another rotating seat 6, so that the two rotating seats 6 arranged opposite to each other as shown in the figure can be plugged and fixed to each other.

[0050] In some embodiments, the size of the protrusion 8 itself is slightly larger than the inner diameter of the slot 7. Therefore, during insertion, the fingers need to provide a certain clamping force so that the protrusion 8 can deform and shrink to be inserted into the slot 7 to form an interference fit.

[0051] Reference Figure 6 In the embodiment, the middle of the protrusion 8 is a hollow structure, which can better enable it to be subjected to the restraining force and deform inwardly.

[0052] Furthermore, two buckle strips 10 are provided on the protrusion 8, one is on the arc end face and the other is on the flat surface, and the slot 7 is provided with a buckle groove 9 at the corresponding position for engaging with the buckle strip 10, so that a more stable engaging relationship is formed by engaging with the buckle strip 10 in two directions.

[0053] This symmetrical structure is designed to be able to deal with different directions of buckling in this embodiment, regardless of the male and female heads or the connection direction, and to be fixed directly by rotating and aligning. Not only is the cost of the snap buttons 5 of uniform specifications lower at the production end, but it is also more efficient during installation. At the same time, the symmetrical matching mode of the semicircular protrusion 8 and the slot 7 can better separate them only when a force perpendicular to the flat end surface of the semicircle is applied externally. Different from the buckling mode of the existing circular male and female nested buckles, it has an omnidirectional separation end. After the sleeve is formed, the present embodiment can improve its connection stability. During the continuous movement and bending of the wire harness, improving its directional opening performance helps to reduce the possibility of accidental opening by external force. In order to facilitate manual disassembly, an indicator mark can be provided at the swivel seat 6.

[0054] The present invention is not limited to the above optional implementations, and anyone can derive other various forms of products under the enlightenment of the present invention. The above specific implementations should not be understood as limiting the scope of protection of the present invention. The scope of protection of the present invention should be based on the definition in the claims, and the description can be used to interpret the claims.

Claims

1. A Teflon wire harness sleeve, used to be arranged outside an assembled wire harness to form a wrap, characterized in that: The invention comprises a Teflon sleeve layer (1) and a telescopic mesh layer (3) as a sheet body, wherein the Teflon sleeve layer (1) and the telescopic mesh layer (3) are both curled to form a sleeve structure, the telescopic mesh layer (3) is located inside the Teflon sleeve layer (1), and the curled and closed edges of the Teflon sleeve layer (1) and the telescopic mesh layer (3) are both fixed on a group of connecting strips (4) extending along the length direction of the sleeve structure to form an inner and outer nested sleeve, and the connecting strips (4) are provided with a plurality of snap buttons (5) which are interlocked with each other so that the two connecting strips (4) are fitted and fixed at equal intervals.

2. The Teflon wire harness sleeve according to claim 1, characterized in that: The Teflon sleeve layer (1) and the telescopic mesh layer (3) are curled and nested to form a main sleeve, and also include a branch line telescopic mesh tube (2) for sleeve-mounting a branch line branched from the wire harness, the branch line telescopic mesh tube (2) is formed by buckling two telescopic sheets that are telescopic in a direction perpendicular to the length, side strips are respectively provided on the two side edges in the length direction of the telescopic sheet, and a plurality of snaps (5) are provided on the side strips, and the two telescopic sheets are buckled together by the snaps (5) provided on the side strips on both sides to form a sleeve structure.

3. The Teflon wire harness sleeve according to claim 2, characterized in that: The end side strips of the branching telescopic network tube (2) are provided with sleeve holes (11) for the snap buttons (5) to pass through, and the two groups of sleeve holes (11) are respectively sleeved on two adjacent and snap-connected groups of snap buttons (5) on the connecting strip (4).

4. The Teflon wire harness sleeve according to claim 1, characterized in that: The Teflon sleeve layer (1) is a mesh sheet body formed by weaving Teflon threads, and the telescopic mesh layer (3) is a telescopic sheet body formed by weaving polyester fiber threads and rubber threads.

5. The Teflon wire harness sleeve according to claim 4, characterized in that: The cross-sectional dimension of the first sleeve formed by curling the Teflon sleeve layer (1) is greater than one times the maximum cross-sectional dimension formed after the wire harness is bound, and the cross-sectional dimension of the second sleeve formed by curling the telescopic mesh layer (3) in a stress-free state is less than half of the maximum cross-sectional dimension formed after the wire harness is bound.

6. A Teflon wire harness sleeve according to any one of claims 1 to 5, characterized in that: The snap button (5) comprises a structure that passes through the two sides of the connecting strip (4) to connect and clamp. The end of the snap button (5) located inside the connecting strip (4) is rotatably connected to a rotating seat (6). The rotating seat (6) is provided with a slot (7) and a protrusion (8). The protrusion (8) on one rotating seat (6) is inserted into the slot (7) on the other rotating seat (6) to achieve a snap connection.

7. The Teflon wire harness sleeve according to claim 6, characterized in that: The rotating seat (6) is a cylindrical structure, with a semicircular slot (7) and a semicircular protrusion (8) having equal diameters on its inner side, a buckle strip (10) being provided on the protrusion (8), and a buckle groove (9) cooperating with the buckle strip (10) being provided at a corresponding position of the slot (7).

8. The Teflon wire harness sleeve according to claim 7, characterized in that: The protrusion (8) is a hollow structure, and when the protrusion (8) is inserted into the corresponding slot (7), it elastically indents into the hollow part to reduce the outer diameter of the end portion.

9. A Teflon wire harness sleeve according to any one of claims 1 to 5, characterized in that: A shielding layer is provided inside the telescopic mesh layer (3), and the shielding layer is composed of a plurality of spiral metal wires.

10. A Teflon wire harness sleeve according to any one of claims 1 to 5, characterized in that: The connecting strip (4) has adhesive on its fitting surface.

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