Isolation device

Abstract

The utility model relates to an isolating device for isolating mutually crossed cables or pipelines on an airplane. The isolation device comprises: a flexible belt (1); the locking fastener (2) is arranged at one end of the flexible belt (1); the isolation assembly (3) comprises a first isolation block (31) and a second isolation block (32), the first isolation block (31) and the second isolation block (32) are connected and form a cavity, the first isolation block (31) and the second isolation block (32) are respectively provided with at least two through holes (35), the flexible belt (1) comprises a first section (11), a second section (12) and a third section (13), the isolation assembly (3) is arranged in the second section (12) in a penetrating mode, and the isolation assembly (3) is arranged in the third section (13) in a penetrating mode. The first section (11) is arranged at an angle to the third section (13).

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of aircraft parts, concretely relates to an isolating device for isolating the crossed pipeline or cable on the airplane. BACKGROUND

[0002] With the rapid development of the aviation industry, more and more devices are arranged in the aircraft body, and the arrangement of the pipeline or cable inside the aircraft body becomes more and more dense. During the flight of the airplane, the operation of the engine and the repeated jolting of the air flow cause the pipeline or cable to vibrate, deform, and displace. If the pipelines rub against each other, the contents may leak, and the leakage of the fuel transmission pipeline may pose a risk of explosion to the airplane. The repeated friction of the cable may cause the shielding layer to wear, affecting the shielding effectiveness of the cable. For example, the repeated collision and friction of the electrical bonding wire may cause the bonding wire to break, and when the breakage reaches a certain extent, the bonding wire will lose its bonding function, resulting in insufficient grounding resistance of the component and affecting the electromagnetic protection performance and current transmission safety of the device.

[0003] In the prior art, there are various isolating devices for isolating cables or pipelines. For example, a Chinese utility model patent CN210478599U entitled "Isolating strap assembly" submitted by Dongfeng Commercial Vehicle Co., Ltd. discloses an isolating device for isolating automobile wire harness. The core structure includes a strap, a lock head, and an isolating block. The isolating block is composed of an upper layer, a middle layer, and a lower layer, and has an upper threading cavity and a lower threading cavity inside. The movable end of the strap passes through these cavities and the locking cavity of the lock head in sequence, achieving simultaneous fixation and isolation of two pipeline harnesses.

[0004] In addition, a Chinese utility model patent CN216735607U entitled "Aircraft electrical circuit interconnection system and wire harness binding device thereof" submitted by China Commercial Aircraft Co., Ltd. discloses a binding device for binding aircraft electrical circuits. The core structure of the binding device is composed of a fixed unit and a pair of strap units. The fixed unit has a plurality of insertion holes along the length direction, and each insertion hole has a first matching part. The strap unit is a flexible member, and its free end can be inserted into any insertion hole and restricted from coming out through the interaction of the first matching part and the second matching part. It is suitable for various wire harness quantities and layout requirements. The overall design is compact and has fewer parts, and can achieve flexibility and reliability in wiring of the aircraft electrical circuit interconnection system.

[0005] However, the isolation means or device in the prior art can only solve the isolation problem of parallel or basically parallel cables or pipelines, and lacks reasonable isolation means for cables or pipelines that cross each other. Thus, it cannot prevent the cables or pipelines that cross each other from being worn or electrostatically discharged due to friction and collision. SUMMARY

[0006] This invention was made in view of the above-mentioned problems, and its purpose is to provide an isolation device that can isolate intersecting cables or pipes.

[0007] According to a first aspect of the present invention, there is an isolation device, and more specifically, an isolation device for isolating interleaved cables or conduits within an aircraft fuselage, comprising:

[0008] Flexible strip;

[0009] A locking element, which is disposed at one end of the flexible belt; and

[0010] The isolation assembly includes a first isolation block and a second isolation block, which are connected and form a cavity inside each other. It should be noted that the "connection" described here refers to a detachable connection, such as a bolted connection, preferably a snap-fit ​​connection, not a fixed connection. Each of the first and second isolation blocks has at least two through holes for the flexible tape to pass through.

[0011] The flexible strip comprises a first section, a second section, and a third section. An isolation component passes through the second section, and the cables or conduits to be isolated are respectively positioned in the first and third sections. Viewed from the side, the first and third sections are angled together to isolate and secure intersecting cables or conduits. It is important to note that "viewed from the side" refers to the direction of observation, from the connection surface between the isolation component and the first section to the connection surface between the isolation component and the third section. The flexible strip passes through a via and twists within the cavity formed by the first and second isolation blocks—a hollow structure—changing its direction to create an angle between the first and third sections. This allows for the isolation of cables or conduits that intersect within the first and third sections. This avoids friction between adjacent and intersecting lines and conduits, further preventing wear caused by repeated friction between cables or conduits, thus improving aircraft safety.

[0012] Preferably, in another embodiment of the present invention, the isolation assembly further includes a supplementary block having a guide hole, and both ends of the supplementary block being connected to the first isolation block and the second isolation block, respectively. The supplementary block forms a first cavity and a second cavity with the first and second isolation blocks, respectively. The isolation assembly has a hollow internal structure for the flexible strip to twist and change direction within this hollow structure. By adding the supplementary block, the axial length of the isolation assembly is increased, further enabling the isolation device of the present invention to be used for isolation between cables or conduits with large spacing. When the spacing between two intersecting cables or conduits is large, multiple supplementary blocks can be added to achieve isolation between the cables or conduits, depending on the actual situation.

[0013] In another embodiment of the utility model, the lock piece includes a lock head and a retreat-stop claw, which are arranged at two ends of the flexible band respectively, and the lock piece is arranged in the first section or the third section. The lock head is internally provided with a stop structure matched with the retreat-stop claw. When the other end of the flexible band passes through the lock head, the retreat-stop claw on the flexible band will engage with the stop structure in the lock head. The stop structure allows the flexible band to move unidirectionally and gradually lock when the flexible band is pulled.

[0014] Preferably, in another embodiment of the utility model, the flexible band can be implemented as a cable tie.

[0015] In another embodiment of the utility model, the first spacer and the second spacer are connected through a buckle part, which includes a female buckle and a male buckle. The female buckle and the male buckle can be tightly connected through shape matching, thereby realizing the detachable connection of the first spacer and the second spacer, and facilitating installation and disassembly in actual use. It should be noted that the female buckle and the male buckle can be arranged on the first spacer or the second spacer. The female buckle arranged on one of the first spacer and the second spacer is connected with the male buckle of the other party. The female buckle and the male buckle can be arranged in various forms. For example, the female buckle is arranged on the first spacer, and the male buckle is arranged on the second spacer. Alternatively, the male buckle is arranged on the first spacer, and the female buckle is arranged on the second spacer. Alternatively, the female buckle and the male buckle are arranged on the first spacer, and the male buckle and the female buckle are correspondingly arranged on the second spacer.

[0016] Preferably, in another embodiment of the utility model, the first spacer, the supplementary block and the second spacer are sequentially connected through a buckle part, which includes a female buckle and a male buckle. The female buckle and the male buckle can be tightly connected through shape matching, thereby realizing the detachable connection of the first spacer and the second spacer. In actual use, the female buckle and the male buckle can be connected according to the actual demand, i.e. the distance between the cross-arranged cables or pipelines, thereby realizing quick installation or disassembly. In this embodiment, the combination of the female buckle and the male buckle between the first spacer, the supplementary block and the second spacer can be in various combination forms, but they all belong to the same concept and belong to the protection scope of the utility model.

[0017] In addition, in another embodiment of the utility model, the first section and the third section are further provided with an insulating ring. When isolating the mutually-crossed cables, the insulating ring is arranged to further improve the insulation capacity of the device and improve the safety of the airplane.

[0018] Thus, the utility model provides a kind of for isolating cable or pipeline isolation device, and design the hollow form of space structure and connecting structure of isolation component, so that the pipeline and cable of different angle intersection can use this isolation device to isolate. Improve the safety and service life of on-machine pipeline and cable, the utility model is also applicable to the occasion outside the aircraft operating environment, such as automobile, ship, electrical equipment etc. industry, with wide applicability. BRIEF DESCRIPTION OF DRAWINGS

[0019] The following drawings are only used to provide further understanding of the utility model, form part of the specification, for explaining the principle of the utility model, and do not constitute the limitation to the utility model.

[0020] In the illustration:

[0021] Figure 1 it is the schematic diagram of isolation device according to the embodiment of the utility model;

[0022] Figure 2 it is the schematic diagram of flexible band according to the embodiment of the utility model;

[0023] Figure 3 it is the detailed exploded view of isolation component according to the embodiment of the utility model;

[0024] Figure 4 it is the working schematic diagram of isolation component according to the embodiment of the utility model.

[0025] LIST OF REFERENCE NUMERALS

[0026] 1 flexible band;

[0027] 11 first section

[0028] 12 second section;

[0029] 13 third section;

[0030] 2 lock catch

[0031] 21 lock head;

[0032] 22 stopper type pawl;

[0033] 3 isolation component;

[0034] 31 first isolation block;

[0035] 32 second isolation block;

[0036] 33 supplementary block;

[0037] 34 buckle part;

[0038] 35 through hole;

[0039] 36 guide hole;

[0040] 34A female buckle;

[0041] 34B male buckle;

[0042] D1 cable or pipe extension direction;

[0043] D2 cable or pipe extension direction. DETAILED DESCRIPTION

[0044] In order for those skilled in the art to better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments.

[0045] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged under appropriate circumstances in order to describe the embodiments of the present application described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0046] In the present application, the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "inner", "outer", "middle", and the like are based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit the devices, elements or components indicated to have a specific orientation, or to be constructed and operated in a specific orientation.

[0047] In addition, in addition to being used to indicate the orientation or positional relationship, the above-mentioned part of the terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain attachment relationship or connection relationship in some cases. Those skilled in the art can understand the specific meaning of these terms in the present application according to the specific circumstances.

[0048] In addition, the terms "mount", "set", "arrange", "provided with", "connect" should be broadly understood. For example, it can be fixedly connected, detachably connected, or integrally constructed; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. Those skilled in the art can understand the specific meaning of the above-mentioned terms in the present application according to the specific circumstances.

[0049] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other in the case of no conflict. In order to make the scheme of the present application more clear, the present application will be further described in combination with the specific embodiments and the drawings.

[0050] As shown in Figure 1 , it is a schematic view of the isolation device according to the embodiment of the present application. The isolation device comprises a flexible belt 1, a lock piece 2 and an isolation assembly 3. Preferably, the flexible belt 1 can be implemented as a cable tie. The isolation assembly 3 comprises a first isolation block 31, a supplementary block 33 and a second isolation block 32. The first isolation block 31, the supplementary block 33 and the second isolation block 32 are connected in sequence through a buckle part 34. The first end of the first isolation block 31 and the supplementary block 33 is connected to form a first cavity inside. The second end of the second isolation block 32 and the supplementary block 33 is connected to form a second cavity inside. The supplementary block 33 has a guide hole 36 along its axial direction, and the guide hole 36 forms a hollow space structure with the first cavity and the second cavity. The first isolation block 31 and the second isolation block 32 respectively have at least two through holes 35. The lock piece 2 is arranged at the end of the flexible belt 1, wherein the lock piece 2 comprises a lock head 21 and a non-retraction tooth 22, and the lock head 21 and the non-retraction tooth 22 are arranged at the two ends of the flexible belt 1 respectively. The lock head 21 is internally provided with a stop structure matched with the non-retraction tooth 22. When the other end of the flexible belt 1 passes through the lock head 21, the non-retraction tooth 22 on the flexible belt 1 will engage with the stop structure in the lock head 21, realizing the effect of gradually locking the one-way movement of the flexible belt 1. Figure 2 As shown in Figure 1 , the isolation assembly 3 is arranged in the second section 12, and the first section 11 and the third section 13 are respectively provided with cables or pipelines to be isolated. Specifically, in use, the flexible belt 1 passes through the cables or pipelines to be isolated, extends into the through hole 35 on the first isolation block 31, passes through the hollow structure formed by the first isolation block 31, the supplementary block 33 and the second isolation block 32, and is twisted in the hollow structure to change the angle, and then passes through the second isolation block 32 through the through hole 35 on the second isolation block 32, and finally passes through the other cables or pipelines to be isolated, and finally the lock piece 2 is pulled tight to lock, realizing the effect of isolating and fixing two mutually crossing cables or pipelines.

[0051] As shown in Figure 3The diagram shows a detailed exploded view of the isolation assembly according to an embodiment of the present invention. The first isolation block 31, the supplementary block 33, and the second isolation block 32 are sequentially connected by a snap-fit ​​portion 34. The snap-fit ​​portion 34 includes a recessed snap 34A and a protruding snap 34B, which are tightly connected in a form-fitting manner. This achieves a detachable connection between the first isolation block 31, the supplementary block 33, and the second isolation block 32, facilitating the installation and removal of the isolation assembly in practical use. Furthermore, by adding one or more supplementary blocks 33, the isolation distance can be adjusted according to the distance between the two cables or conduits to be isolated.

[0052] It should be noted that in the above technical solution, the supplementary block serves as a distance adjustment element in the embodiment. When the distance between the cables or pipes to be isolated is small, this supplementary block can be omitted. In practical applications, it can be omitted or replaced with other equivalent structures, and the omission or replacement will not have a substantial impact on the overall functionality and effect of the technical solution. Therefore, regardless of whether this component is included, any technical solution that conforms to the overall concept of this utility model should be included within the protection scope of this utility model.

[0053] Furthermore, in the isolation device of this invention, insulating rings (not shown) can also be provided in the first section 11 and the third section 13. By providing insulating rings, the insulation capability of the isolation device is further improved, thereby reducing friction between cables or pipes and enhancing aircraft safety.

[0054] like Figure 4 The diagram shown is a schematic representation of the isolation assembly according to an embodiment of the present invention. As shown, D1 and D2 are the extension directions of two cables or conduits to be isolated, intersecting each other. The two cables or conduits to be isolated pass through the first section and the second section, respectively. [The diagram continues...] Figure 4 After installing the isolation device as shown, tighten the locking mechanism to secure and isolate the two cables or pipes to be isolated.

[0055] The implementation of this utility model is not limited to the embodiments described above, and can be adjusted and optimized according to different design requirements and usage environments. The scope of protection of this utility model should be determined by the content of the claims, and not limited to the embodiments described above. Although this utility model has been described through specific embodiments, any modifications, changes, and combinations made by those skilled in the art to various embodiments and implementation methods of this utility model without departing from the spirit of this utility model should be within the scope of protection of this utility model.

Claims

1. An isolation device, characterized in that, include: Flexible strip (1); A locking fastener (2) is disposed at the end of the flexible strip (1); as well as Isolation component (3), the isolation component (3) including a first isolation block (31) and a second isolation block (32). An isolation block (32) is provided, wherein the first isolation block (31) and the second isolation block (32) are connected and form a cavity, and the first isolation block (31) and the second isolation block (32) are respectively provided with at least two through holes (35). The flexible strip (1) includes a first section (11), a second section (12) and a third section (13). The second section (12) passes through the isolation component (3). From the side, the first section (11) and the third section (13) are arranged at an angle.

2. The isolation device according to claim 1, characterized in that, The isolation component (3) further includes a supplementary block (33), which has a guide hole (36) and its two ends are connected to the first isolation block (31) and the second isolation block (32) respectively.

3. The isolation device according to claim 2, characterized in that, The supplementary block (33) forms a first cavity and a second cavity with the first isolation block (31) and the second isolation block (32), respectively.

4. The isolation device according to claim 1, characterized in that, The locking element (2) includes a lock head (21) and a backstop tooth (22), which are respectively disposed at both ends of the flexible strip (1).

5. The isolation device according to claim 1, characterized in that, The locking element (2) is disposed in the first section (11) or the third section (13).

6. The isolation device according to claim 1, characterized in that, The first isolation block (31) and the second isolation block (32) are connected by a snap-fit ​​part (34), which includes a recessed snap (34A) and a convex snap (34B). The recessed snap (34A) of one of the first isolation block (31) and the convex snap (34B) of the other are engaged and connected.

7. The isolation device according to claim 2, characterized in that, The first isolation block (31), the supplementary block (33) and the second isolation block (32) are connected in sequence by a snap-fit ​​part (34), which includes a recessed snap (34A) and a convex snap (34B), and the recessed snap (34A) and the convex snap (34B) are connected in cooperation.

8. The isolation device according to claim 1, characterized in that, The flexible band (1) is a cable tie.

9. The isolation device according to claim 1, characterized in that, The first section (11) and the third section (13) are provided with insulating rings.

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