Leaky coaxial cable convenient for determining polarization direction and arrangement structure thereof

Abstract

The utility model relates to the technical field of leaky coaxial cables, in particular to a leaky coaxial cable convenient for determining a polarization direction and an arrangement structure thereof, comprising an inner conductor, an insulating layer, an outer conductor and a sheath layer which are coaxially arranged from the inner layer to the outer layer in sequence, the outer layer conductor is provided with a plurality of uniformly distributed slotted hole groups, the slotted hole groups are distributed along the axial direction of the outer layer conductor, the outer sheath is provided with slotted hole identification lines and polarization direction identification lines along the circumferential direction of the outer sheath, the slotted hole identification lines are arranged opposite to the slotted hole groups along the axis of the outer sheath, and the polarization direction identification lines are aligned with the slotted hole groups along the radial direction of the outer sheath. According to the leaky coaxial cable convenient for determining the polarization direction, the position of the slotted hole group is convenient to determine through the slotted hole identification line, and because the position of the slotted hole group is back to an operator in most cases during construction, the slotted hole identification line is arranged at the position opposite to the slotted hole group, and the polarization direction identification line is arranged at the same time, so that the position of the slotted hole group is convenient to determine. And patrol personnel can be helped to quickly determine the type and the polarization direction of the cable.

Description

Technical Field

[0001] The utility model relates to the technical field of leaky coaxial cables, in particular to a leaky coaxial cable which is convenient for determining a polarization direction and an arrangement structure thereof. Background Art

[0002] Leaky cable is the abbreviation of leaky coaxial cable (Leaky Coaxial Cable), which is usually referred to as leaky cable or leaky coaxial cable.

[0003] The main working principle of leaky cables is that electromagnetic waves are transmitted longitudinally in the leaky cables and radiated to the outside through the slots; the external electromagnetic field can also be induced into the inside of the leaky cable through the slots and transmitted to the receiving end.

[0004] During inspections along railway lines and in tunnels, it is difficult to confirm whether the slots of leaky coaxial cables used for wireless communications are facing the receiving station, and it is also difficult to confirm the polarization direction of the leaky coaxial cable. Utility Model Content

[0005] The technical problem to be solved by the utility model is: in order to solve the technical problem in the prior art, the utility model provides a leaky coaxial cable and an arrangement structure thereof which are convenient for determining the polarization direction.

[0006] The utility model solves the technical problem by adopting the following technical solution: a leaky coaxial cable which is convenient for determining polarization direction, comprising an inner conductor, an insulating layer, an outer conductor and a sheath layer which are coaxially arranged in sequence from an inner layer to an outer layer; a plurality of evenly distributed slot groups are arranged on the outer conductor, the slot groups are distributed along the axial direction of the outer conductor, the sheath layer has slot identification lines and polarization direction identification lines along its own circumference, the slot identification lines are arranged relative to the slot groups along the axis of the sheath layer, and the polarization direction identification lines are aligned with the slot groups along the radial direction of the sheath layer.

[0007] The utility model discloses a leaky coaxial cable which is convenient for determining polarization direction. The position of a slot group is convenient for determining through a slot identification line. During construction, the slot group is usually located away from operators. Therefore, the slot identification line is arranged at a position opposite to the slot group. Meanwhile, a polarization direction identification line is arranged, so that inspection personnel can quickly determine the type and polarization direction of the cable.

[0008] Furthermore, the polarization direction identification line uses color strips of different colors to correspond to different polarization directions.

[0009] Furthermore, the polarization direction identification line is a continuous and discontinuous long strip.

[0010] Furthermore, the polarization direction marking line is made of non-reflective material.

[0011] Furthermore, the width of the polarization direction identification line is not less than 6 mm.

[0012] Furthermore, the slot hole identification line is provided in a raised manner.

[0013] A leaky coaxial cable arrangement structure comprises a bracket, on which a locking piece is arranged, and the locking piece is connected to the leaky coaxial cable for facilitating determination of polarization direction.

[0014] Furthermore, the bracket is provided with a plurality of leaky coaxial cables for facilitating determination of polarization directions, and adjacent leaky coaxial cables for facilitating determination of polarization directions adopt different polarization directions.

[0015] Furthermore, the locking member is provided with a fixing member, the bracket is provided with a T-slot, the locking member is provided with a T-block, and the T-block slides in the T-slot; the locking member is provided with a locking belt, the leaky coaxial cable for facilitating determination of the polarization direction is located between the locking belt and the locking member, the fixing member passes through the end of the locking belt that is not connected to the locking member, and is threadedly connected to the locking member, and the fixing member passes through the locking member and contacts the bracket.

[0016] Furthermore, the length of the T-block along the opening direction of the T-slot is smaller than the small slot width of the T-slot.

[0017] The beneficial effects of the utility model are:

[0018] 1. The slot identification line is used to facilitate the determination of the position of the slot group. During construction, the slot group is usually located away from the operator. Therefore, the slot identification line is set at a position opposite to the slot group. At the same time, the polarization direction identification line is set to help inspectors quickly determine the type and polarization direction of the cable.

[0019] 2. The raised slot hole identification line makes it easier for operators to identify the direction of the slot hole group by touch in a dim environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 The utility model is a front cross-sectional schematic diagram of a leaky coaxial cable which is convenient for determining the polarization direction.

[0022] Figure 2 It is a side view schematic diagram showing the polarization direction identification line in the utility model.

[0023] Figure 3 It is a side view schematic diagram of the slot hole identification line in the utility model.

[0024] Figure 4 It is a schematic diagram of a slot hole in the utility model in which the polarization direction is vertical.

[0025] Figure 5 It is a schematic diagram of a slot hole in which the polarization direction is horizontal in the utility model.

[0026] Figure 6 It is a schematic diagram showing the overall arrangement structure of the present utility model.

[0027] Figure 7 It is a schematic diagram of the locking member, the fixing member and the adjusting nut in the utility model.

[0028] In the figure: 1. inner conductor; 2. insulating layer; 3. outer conductor; 31. slot group; 4. sheath layer; 41. slot identification line; 42. polarization direction identification line; 5. bracket; 51. T-slot; 52. locking piece; 53. T-block; 54. locking belt; 55. fixing piece; 56. adjusting nut. DETAILED DESCRIPTION

[0029] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0030] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The utility model discloses a leaky coaxial cable and an arrangement structure thereof which are convenient for determining a polarization direction.

[0032] Reference Figures 1 to 3 A leaky coaxial cable and its arrangement structure for facilitating the determination of polarization direction, comprising an inner conductor 1, an insulating layer 2, an outer conductor 3, and a sheath layer 4 coaxially arranged in sequence from the inner layer to the outer layer; the outer conductor 3 is provided with a plurality of evenly distributed slot groups 31, the slot groups 31 are distributed along the axial direction of the outer conductor 3, the sheath layer 4 has slot identification lines 41 and polarization direction identification lines 42 along its own circumference, the slot identification lines 41 are arranged opposite to the slot groups 31 along the axis of the sheath layer 4, and the polarization direction identification lines 42 are aligned with the slot groups 31 along the radial direction of the sheath layer 4. The slot identification lines 41 facilitate the determination of the position of the slot groups 31, and since the slot groups 31 are usually located away from the operator during construction, the slot identification lines 41 are arranged at a position opposite to the slot groups 31, and the polarization direction identification lines 42 are arranged at the same time, so as to help the inspectors quickly determine the type and polarization direction of the cable.

[0033] Specifically, the polarization direction identification line 42 uses color strips of different colors to correspond to different polarization directions. In this embodiment, there are two polarization directions, namely horizontal direction and vertical direction. The outer conductor 3 is in a strip shape during production, and is bent and wrapped around the inner conductor 1 after the slots are opened. Figure 5 , is a schematic diagram of the expansion of the slot group 31 with the polarization direction being the horizontal direction. Figure 4 , is a schematic diagram of the expansion of the slot group 31 with the polarization direction being the vertical direction.

[0034] More specifically, refer to Figure 2 The polarization direction identification line 42 is a continuous and discontinuous strip, and the polarization direction identification line 42 is made of non-reflective material. The width of the polarization direction identification line 42 is not less than 6 mm.

[0035] Reference Figure 3 , the slot identification line 41 is convexly arranged.

[0036] A leaky coaxial cable arrangement structure, referring to Figure 6 and Figure 7 , including a bracket 5, on which a locking member 52 is provided, and the locking member 52 is connected to the above-mentioned leaky coaxial cable for facilitating determination of polarization direction.

[0037] Specifically, the bracket 5 is provided with a plurality of leaky coaxial cables for facilitating the determination of polarization directions, and adjacent leaky coaxial cables for facilitating the determination of polarization directions adopt different polarization directions. In this embodiment, four leaky coaxial cables for facilitating the determination of polarization directions are provided. When four leaky coaxial cables are used, if the four leaky coaxial cables have the same polarization directions, the radiation signals of the four leaky coaxial cables will affect each other during operation, resulting in a decrease in the 5G download rate. When adjacent leaky coaxial cables use leaky coaxial cables with different polarization directions, since the polarization angles of the leaky coaxial cables with different polarization directions are different, this influence can be reduced, and the greater the difference in polarization angles, the more obvious the improvement effect. Therefore, when multiple leaky coaxial cables need to be installed at the same time, this method of installing leaky coaxial cables with different polarization directions in sequence is adopted.

[0038] More specifically, the locking member 52 is provided with a fixing member 55, the bracket 5 is provided with a T-shaped slot 51 along its length direction, the locking member 52 is fixedly connected with a T-shaped block 53, and the T-shaped block 53 slides in the T-shaped slot 51. The locking member 52 is provided with a locking belt 54, and the leaky coaxial cable for determining the polarization direction is located between the locking belt 54 and the locking member 52, the fixing member 55 passes through the end of the locking belt 54 that is not connected to the locking member 52, and is threadedly connected to the locking member 52, and the fixing member 55 passes through the locking member 52 and contacts the bracket 5, that is, the leaky coaxial cable for determining the polarization direction is locked by the locking member 52, and the locking member 52 and the bracket 5 are locked. The fixing member 55 is threadedly connected with an adjusting nut 56, and the adjusting nut 56 is used to contact the locking belt 54 to ensure that the leaky coaxial cable for determining the polarization direction is locked.

[0039] In addition, the width of the T-block 53 is smaller than the width of the small groove of the T-slot 51, and the length of the T-block 53 is smaller than the width of the large groove of the T-slot 51, and larger than the width of the small groove of the T-slot 51. Therefore, the T-block 53 can be directly inserted into the T-slot 51 during installation, and after being rotated 90 degrees, it can slide in the T-slot 51 and can contact the groove wall of the T-slot 51 near the locking member 52.

[0040] Working principle: The slot identification line 41 is used to facilitate the determination of the position of the slot group 31. Since the slot group 31 is usually located away from the operator during construction, the slot identification line 41 is set at a position opposite to the slot group 31. At the same time, the polarization direction identification line 42 is set to help inspectors quickly determine the type and polarization direction of the cable. The slot identification line 41 is set in a raised position, so that the operator can easily distinguish the direction of the slot group 31 by touch in a dim environment.

[0041] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A leaky coaxial cable that facilitates determination of polarization direction, characterized in that: The invention comprises an inner conductor (1), an insulating layer (2), an outer conductor (3), and a sheath layer (4) which are coaxially arranged in sequence from the inner layer to the outer layer; the outer conductor (3) is provided with a plurality of evenly distributed slot groups (31), the slot groups (31) are distributed along the axial direction of the outer conductor (3); the sheath layer (4) has slot identification lines (41) and polarization direction identification lines (42) along its own circumference; the slot identification lines (41) are arranged relative to the slot groups (31) along the axis of the sheath layer (4), and the polarization direction identification lines (42) are aligned with the slot groups (31) along the radial direction of the sheath layer (4).

2. A leaky coaxial cable that facilitates determination of polarization direction according to claim 1, characterized in that: The polarization direction identification line (42) uses color strips of different colors to correspond to different polarization directions.

3. A leaky coaxial cable for facilitating determination of polarization direction according to claim 1, characterized in that: The polarization direction identification line (42) is in the form of continuous and discontinuous long strips.

4. A leaky coaxial cable for facilitating determination of polarization direction according to claim 1, characterized in that: The polarization direction identification line (42) is made of non-reflective material.

5. A leaky coaxial cable for facilitating determination of polarization direction as claimed in claim 3, characterized in that: The width of the polarization direction identification line (42) is not less than 6 mm.

6. A leaky coaxial cable for facilitating determination of polarization direction as claimed in claim 1, characterized in that: The slot identification line (41) is arranged in a raised manner.

7. A leaky coaxial cable arrangement structure, characterized in that: The invention comprises a bracket (5), on which a locking piece (52) is provided, and the locking piece (52) is connected to the leaky coaxial cable for facilitating determination of polarization direction as claimed in any one of claims 1 to 6.

8. The arrangement structure of a leaky coaxial cable according to claim 7, characterized in that: The support (5) is provided with a plurality of leaky coaxial cables for facilitating the determination of polarization directions, and adjacent leaky coaxial cables for facilitating the determination of polarization directions adopt different polarization directions.

9. The arrangement structure of a leaky coaxial cable according to claim 8, characterized in that: The locking member (52) is provided with a fixing member (55), the bracket (5) is provided with a T-shaped slot (51), the locking member (52) is provided with a T-shaped block (53), and the T-shaped block (53) slides in the T-shaped slot (51); The locking member (52) is provided with a locking belt (54), the leaky coaxial cable for determining the polarization direction is located between the locking belt (54) and the locking member (52), the fixing member (55) passes through an end of the locking belt (54) that is not connected to the locking member (52) and is threadedly connected to the locking member (52), and the fixing member (55) passes through the locking member (52) and contacts the bracket (5).

10. The arrangement structure of a leaky coaxial cable according to claim 9, characterized in that: The length of the T-shaped block (53) along the opening direction of the T-shaped slot (51) is smaller than the small slot width of the T-shaped slot (51).

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