Combiner for multi-source indoor distribution system

Abstract

The utility model discloses a combiner for a multi-source indoor distribution system, which comprises a shell and interfaces, a plurality of groups of interfaces are fixedly connected to two sides of the horizontal end of the shell, and a heat dissipation plate is fixedly mounted at the top of the shell. In the application, after the external joint passes through the limiting frame and is connected with the interface at the corresponding position, the wire harness part connected with the external joint is placed in the limiting frame, the pull rod is released, the spring drives the pull rod to reset, and the pressing plate slides along the inner surface wall of the limiting frame until the pressing plate abuts against the outer surface wall of the wire harness; at the moment, the wire harness and the pressing plate are fixed through the elastic force of the spring, the wire harness generates acting force due to traction or shaking, and the acting force acts on the connecting position of the pressing plate and the wire harness and does not directly act on the connecting position of the connector and the connector, so that the use stability of the combiner is improved, and the service life of the combiner is prolonged. And thus, stable transmission of signals in the multi-source indoor distribution system is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-information source indoor distribution systems, in particular to a combiner for multi-information source indoor distribution systems. Background Art

[0002] The multi-source indoor distribution system is a successful solution for indoor user groups to improve the mobile communication environment in buildings. It uses relevant technical means to evenly distribute the signals of mobile communication base stations in every corner of the room, thereby ensuring that the indoor area has ideal signal coverage.

[0003] In the application of multi-source indoor distribution system, it is necessary to output 800MHz C network, 900MHz G network or other different frequencies at the same time, so a combiner is needed to make the indoor distribution system work in CDMA frequency band, GSM frequency band or other frequency bands at the same time. Chinese patent publication number CN210668636U, publication time 20200602, discloses a combiner, which includes a cavity with a cavity and a common connector arranged at one end of the cavity, a first frequency resonant column, a second frequency resonant column, a third frequency resonant column and a coupling rod connected to the common connector are provided on one side of the cavity close to the common connector, a metal sleeve coupled to the coupling rod is sleeved on the coupling rod, the first frequency resonant column is connected to the metal sleeve through a wire to transmit the first frequency band signal, and the second frequency resonant column is provided with a coupling hole for the coupling rod to be inserted and coupled to realize the transmission of the second frequency band signal.

[0004] The structure of the combiner for the existing multi-source indoor distribution system such as the above is relatively simple, and the stability of the connection between the external connector and the interface depends entirely on the spiral engagement between the two. When the external wiring harness shakes or is pulled, the force generated directly acts on the connection between the interface and the connector, which can easily cause the connection of the combiner to become loose or even separate, resulting in the inability to transmit signals in the multi-source indoor distribution system normally, affecting the use of the multi-source indoor distribution system. Therefore, it is urgent to propose a corresponding combiner for the multi-source indoor distribution system to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems and to provide a combiner for a multi-source indoor distribution system.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A combiner for a multi-source indoor distribution system comprises a shell and interfaces, wherein a plurality of groups of the interfaces are fixedly connected to both sides of the horizontal end of the shell, a heat sink is fixedly mounted on the top of the shell, a plurality of groups of limit frames are fixedly connected to the outer wall of the heat sink, the plurality of groups of limit frames correspond to the plurality of groups of interfaces one by one, and a pressure plate is slidably connected to the inner wall of the plurality of groups of limit frames, and an elastic component for maintaining the stable position of the pressure plate is arranged on the top of the limit frame.

[0008] Preferably, mounting plates are fixedly mounted on both sides of the longitudinal ends of the shell, and mounting rods are slidably connected to the inside of the mounting plates via transverse grooves.

[0009] Preferably, a rubber pad is interference-fitted on the inner surface wall at the top of the mounting plate, and the bottom of the rubber pad abuts against the top of the mounting rod.

[0010] Preferably, the plurality of groups of limit frames are fixedly connected to the heat sink through a plurality of groups of connection frames, and the plurality of groups of connection frames are fixedly connected to the housing through a plurality of groups of locking rods.

[0011] Preferably, the elastic component includes a pull rod, the outer wall of the vertical end of the pull rod is slidably connected to the inner wall of the top of the limit frame, the bottom of the pull rod is fixedly connected to the top of the pressure plate, a spring is fixedly installed between the bottom of the horizontal end of the pull rod and the top of the limit frame, and the inner wall of the spring is in contact with the outer wall of the vertical end of the pull rod.

[0012] Preferably, the cross section of the pressing plate is a rectangular structure, and a rubber layer is fixedly installed on the bottom of the pressing plate.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0014] 1. In the present application, after the external connector is passed through the limit frame and connected to the interface at the corresponding position, the wiring harness part connected to the external connector is placed in the limit frame, the pull rod is released, and the spring drives the pull rod to reset. The pressure plate slides along the inner wall of the limit frame until the pressure plate abuts against the outer wall of the wiring harness. At this time, the wiring harness and the pressure plate are fixed by the elastic force of the spring. When the wiring harness generates a force due to traction or shaking, the force will act on the connection between the pressure plate and the wiring harness, but will not directly act on the connection between the interface and the connector, thereby improving the stability of the use of the combiner, and then ensuring the stable transmission of signals in the multi-source indoor distribution system.

[0015] 2. In the present application, the posture of the shell is adjusted accordingly according to the position of the screw hole on the external carrier, and then the mounting rod is passed through the transverse groove and screwed into the external screw hole to achieve the installation of the combiner. Through the cooperation of the transverse groove and the mounting rod, and on the premise that the position of the external screw hole is determined, the installation posture of the combiner is adjusted according to needs, thereby improving the applicability of the combiner for multi-source indoor distribution systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The overall structure schematic diagram provided according to the embodiment of the utility model is shown;

[0017] Figure 2 A schematic diagram of the structure of a connecting frame provided according to an embodiment of the utility model is shown;

[0018] Figure 3 A schematic diagram of the structure of a pressing plate provided according to an embodiment of the utility model is shown;

[0019] Figure 4 A schematic diagram of a transverse groove structure provided according to an embodiment of the utility model is shown.

[0020] Legend:

[0021] 1. Shell; 2. Interface; 3. Mounting plate; 4. Heat sink; 5. Limit frame; 6. Connecting frame; 7. Locking rod; 8. Pressure plate; 9. Pull rod; 10. Spring; 11. Rubber pad; 12. Mounting rod; 13. Horizontal groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 , the utility model provides a technical solution:

[0024] A combiner for a multi-source indoor distribution system comprises a housing 1 and an interface 2, wherein a plurality of groups of interfaces 2 are fixedly connected to both sides of the horizontal end of the housing 1, a heat sink 4 is fixedly installed on the top of the housing 1, a plurality of groups of limit frames 5 are fixedly connected to the outer wall of the heat sink 4, the plurality of groups of limit frames 5 correspond to the plurality of groups of interfaces 2 one by one, and a pressure plate 8 is slidably connected to the inner wall of the plurality of groups of limit frames 5, and an elastic component for maintaining the position of the pressure plate 8 is arranged on the top of the limit frame 5;

[0025] After the external connector passes through the limit frame 5 and is connected to the interface 2 at the corresponding position, the wiring harness part connected to the external connector is placed in the limit frame 5, the pull rod 9 is released, and the spring 10 drives the pull rod 9 to reset, and the pressure plate 8 slides along the inner wall of the limit frame 5 until the pressure plate 8 abuts against the outer wall of the wiring harness. At this time, the wiring harness and the pressure plate 8 are fixed by the elastic force of the spring 10. When the wiring harness generates a force due to traction or shaking, the force will act on the connection between the pressure plate 8 and the wiring harness, but will not directly act on the connection between the interface 2 and the connector, thereby improving the stability of the use of the combiner, and further ensuring the stable transmission of signals in the multi-source indoor distribution system.

[0026] Specifically, Figure 2 and Figure 4 As shown, mounting plates 3 are fixedly installed on both sides of the longitudinal ends of the shell 1, and mounting rods 12 are slidably connected to the inside of the mounting plate 3 through transverse grooves 13. The posture of the shell 1 is adjusted accordingly according to the positions of the screw holes on the external carrier, and then the mounting rods 12 are passed through the transverse grooves 13 and screwed into the external screw holes to achieve the installation of the combiner. Through the cooperation between the transverse grooves 13 and the mounting rods 12, the installation posture of the combiner is adjusted according to needs under the premise that the positions of the external screw holes are determined, thereby improving the applicability of the combiner for the multi-source indoor distribution system. A rubber pad 11 is interference-fitted on the inner surface wall of the top of the mounting plate 3, and the bottom of the rubber pad 11 abuts against the top of the mounting rod 12. The interference fit ensures the stability of the position of the rubber pad 11 itself, and the rubber pad 11 abuts against the top of the mounting rod 12, so that the loosening of the mounting rod 12 can be limited by friction.

[0027] Specifically, Figure 2 and Figure 3 As shown, multiple groups of limit frames 5 are fixedly connected to the heat sink 4 through multiple groups of connecting frames 6, and multiple groups of connecting frames 6 are fixedly connected to the housing 1 through multiple groups of locking rods 7, so as to ensure the convenience of disassembly and assembly of the heat sink 4 and the multiple groups of limit frames 5. The elastic component includes a pull rod 9, the outer wall of the vertical end of the pull rod 9 is slidably connected to the inner wall of the top of the limit frame 5, the bottom of the pull rod 9 is fixedly connected to the top of the pressure plate 8, and a spring 10 is fixedly installed between the bottom of the horizontal end of the pull rod 9 and the top of the limit frame 5, and the spring 10 is internally fixedly connected to the bottom of the horizontal end of the pull rod 9 and the top of the limit frame 5. The surface wall abuts against the outer wall of the vertical end of the pull rod 9, and the pull rod 9 is released. The spring 10 drives the pull rod 9 to reset, and the pressure plate 8 slides along the inner surface wall of the limit frame 5 until the pressure plate 8 abuts against the outer wall of the wiring harness. At this time, the wire harness and the pressure plate 8 are fixed by the elastic force of the spring 10. The cross-section of the pressure plate 8 is a rectangular structure to ensure the coverage of the wire harness. A rubber layer is fixedly installed at the bottom of the pressure plate 8, and the rubber layer covers the bottom of the pressure plate 8 and the arc-shaped end of the limit frame 5 to avoid damage to the outer skin of the wire harness.

[0028] Working principle: After the external connector is passed through the limit frame 5 and connected to the interface 2 at the corresponding position, the wiring harness part connected to the external connector is placed in the limit frame 5, the pull rod 9 is released, and the spring 10 drives the pull rod 9 to reset, and the pressure plate 8 slides along the inner surface wall of the limit frame 5 until the pressure plate 8 abuts against the outer surface wall of the wiring harness. At this time, the wiring harness and the pressure plate 8 are fixed by the elastic force of the spring 10. When the wiring harness is pulled or shaken, a force is generated. The force will act on the connection between the pressure plate 8 and the wiring harness, and will not directly act on the connection between the interface 2 and the connector, thereby improving the stability of the use of the combiner, and then ensuring the stable transmission of signals in the multi-source indoor distribution system. According to the position of the screw hole on the external carrier, the posture of the shell 1 is adjusted accordingly, and then the mounting rod 12 is passed through the transverse groove 13 and screwed into the external screw hole to realize the installation of the combiner. Through the cooperation of the transverse groove 13 and the mounting rod 12, under the premise of determining the position of the external screw hole, the installation posture of the combiner is adjusted according to the needs, thereby improving the applicability of the combiner for the multi-source indoor distribution system.

[0029] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A combiner for a multi-source indoor distribution system, comprising a housing (1) and an interface (2), characterized in that: A plurality of groups of interfaces (2) are fixedly connected to both sides of the horizontal end of the shell (1); a heat sink (4) is fixedly installed on the top of the shell (1); a plurality of groups of limit frames (5) are fixedly connected to the outer wall of the heat sink (4); the plurality of groups of limit frames (5) correspond to the plurality of groups of interfaces (2) one by one, and the inner walls of the plurality of groups of limit frames (5) are slidably connected to a pressure plate (8); an elastic component for maintaining the stable position of the pressure plate (8) is arranged on the top of the limit frame (5).

2. A combiner for a multi-source indoor distribution system according to claim 1, characterized in that: Mounting plates (3) are fixedly mounted on both sides of the longitudinal ends of the housing (1), and mounting rods (12) are slidably connected inside the mounting plates (3) via transverse grooves (13).

3. A combiner for a multi-source indoor distribution system according to claim 2, characterized in that: A rubber pad (11) is interference-fitted on the inner surface wall of the top of the mounting plate (3), and the bottom of the rubber pad (11) abuts against the top of the mounting rod (12).

4. A combiner for a multi-source indoor distribution system according to claim 3, characterized in that: The plurality of groups of limit frames (5) are respectively fixedly connected to the heat sink (4) via the plurality of groups of connection frames (6), and the plurality of groups of connection frames (6) are respectively fixedly connected to the housing (1) via the plurality of groups of locking rods (7).

5. A combiner for a multi-source indoor distribution system according to claim 4, characterized in that: The elastic component includes a pull rod (9), the outer wall of the vertical end of the pull rod (9) is slidably connected to the inner wall of the top of the limit frame (5), the bottom of the pull rod (9) is fixedly connected to the top of the pressure plate (8), a spring (10) is fixedly installed between the bottom of the horizontal end of the pull rod (9) and the top of the limit frame (5), and the inner wall of the spring (10) is in contact with the outer wall of the vertical end of the pull rod (9).

6. A combiner for a multi-source indoor distribution system according to claim 5, characterized in that: The cross section of the pressing plate (8) is a rectangular structure, and a rubber layer is fixedly mounted on the bottom of the pressing plate (8).

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