Signal power amplifier suitable for tunnel

Abstract

The utility model relates to a signal power amplifier suitable for tunnel, which comprises a signal power amplifier body, the side wall of the signal power amplifier body is fixedly provided with a communication interface, the bottom of the signal power amplifier body is fixedly provided with a connecting seat, the two sides of the signal power amplifier body are both provided with heat dissipation holes, and the heat dissipation holes are communicated with the communication interface. The signal power amplifier body is provided with a protection mechanism used for protecting the communication interface, and the signal power amplifier body is provided with a shielding mechanism used for shielding the heat dissipation holes. By arranging the protection mechanism, the communication interface can be protected when the signal power amplifier body is shut down and the communication interface is not connected with a wire, the situation that impurities intrude into the communication interface to cause poor contact or short circuit is avoided, and it is guaranteed that the communication interface is in a normal state when the signal power amplifier body is used.

Description

Technical Field

[0001] The utility model relates to the technical field of power amplifiers, and particularly relates to a signal power amplifier suitable for tunnels. Background Art

[0002] A signal power amplifier is an electronic device used to amplify the power of a signal. It is a device that increases the power of an input signal to the required output power level. In an electronic system, a signal power amplifier is usually used to enhance the amplitude of an electronic signal so that it can effectively drive a load during transmission or control.

[0003] Since tunnels are usually dug in mountains or underground, the signals inside the tunnels are very weak. However, the signal power amplifier can amplify the signal power through the cooperation of a receiving antenna and a transmitting antenna, enabling the inside of the tunnel to have good signals.

[0004] A signal power amplifier usually has various interfaces such as communication interfaces, power interfaces, and optical cable interfaces. When the signal power amplifier is in use, these interfaces need to be connected to corresponding wires. However, when the signal power amplifier is idle, these interfaces are usually in an open state and lack a device to protect the interfaces. Once dust or impurities invade the inside of the interfaces, poor contact may occur after the wires are connected to the interfaces, and even short circuits may occur, causing the interfaces to burn out and affecting the normal use of the device. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a signal power amplifier suitable for tunnels to solve the problem that the signal power amplifier cannot protect the communication interface.

[0006] The technical solution adopted by the utility model is specifically as follows:

[0007] A signal power amplifier suitable for tunnels includes a signal power amplifier body. A communication interface is fixedly installed on the side wall of the signal power amplifier body. A connecting seat is fixedly installed at the bottom of the signal power amplifier body. Heat dissipation holes are formed on both sides of the signal power amplifier body. A protection mechanism for protecting the communication interface is arranged on the signal power amplifier body. By setting the protection mechanism, the communication interface can be protected when the signal power amplifier body is idle. A shielding mechanism for shielding the heat dissipation holes is arranged on the signal power amplifier body. By setting the shielding mechanism, insects and moths can be prevented from invading the inside of the signal power amplifier body through the heat dissipation holes.

[0008] The utility model further includes the following features:

[0009] The protection mechanism includes a bidirectional lead screw. One end of the bidirectional lead screw is rotatably connected to the side wall of the connection seat. The other end of the bidirectional lead screw passes through the connection seat and is fixedly installed with a knob. The penetration of the bidirectional lead screw and the connection seat is rotatably connected.

[0010] A rotating shaft is rotatably connected to the side wall of the signal power amplifier body. A protective cover is fixedly installed on the outer wall of the rotating shaft. By providing the protective cover, the communication interface can be protected.

[0011] An inclined groove is opened at the bottom of the protective cover.

[0012] Two groups of sliders are threadedly connected to the outer wall of the bidirectional lead screw. The top of the slider is attached to the bottom of the signal power amplifier body. A connecting rod is fixedly installed on the side wall of the slider. The end of the connecting rod away from the slider is attached to the inner wall of the inclined groove. By providing the connecting rod and cooperating with the inclined groove, the protective cover and the rotating shaft can be driven to rotate.

[0013] The shielding mechanism includes a rotating rod. The rotating rod is rotatably connected to the top of the signal power amplifier body. A baffle is fixedly installed on the outer wall of the rotating rod. The baffle is attached to the outer wall of the signal power amplifier body. By providing the baffle, the heat dissipation holes can be blocked.

[0014] A driven bevel gear is fixedly installed on the outer wall of the rotating rod.

[0015] A driving bevel gear is fixedly installed on the top of the rotating shaft. The driving bevel gear meshes with the driven bevel gear. By providing the driving bevel gear and the driven bevel gear, the rotating shaft and the rotating rod can rotate synchronously in opposite directions.

[0016] The technical effects achieved by the present utility model are:

[0017] For the signal power amplifier applicable to tunnels, by providing the protection mechanism, when the signal power amplifier body is shut down and the communication interface is not connected with a wire, the communication interface can be protected, preventing impurities from invading the inside of the communication interface and causing poor contact or short circuit, ensuring that the communication interface of the signal power amplifier body is in a normal state during use.

[0018] For the signal power amplifier applicable to tunnels, by providing the shielding mechanism, after the signal power amplifier body is shut down, the heat dissipation holes can be blocked. When the signal power amplifier body is shut down, there is no need for heat dissipation. By blocking the heat dissipation holes with the baffle, insects and moths can be prevented from invading the inside of the signal power amplifier body through the heat dissipation holes, thereby avoiding interference with the normal operation of the signal power amplifier body by insects. Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 is the overall upward view structural schematic diagram of the present utility model;

[0021] Figure 3 is the unfolded state structural schematic diagram of the protective cover and the baffle of the present utility model;

[0022] Figure 4 is the present utility model Figure 3 top view structural schematic diagram;

[0023] Figure 5 is the present utility model Figure 2 enlarged structural schematic diagram at position A;

[0024] Figure 6 is the present utility model Figure 4 enlarged structural schematic diagram at position B;

[0025] In the figure: 1, signal power amplifier body; 2, communication interface; 3, connecting seat; 4, heat dissipation holes; 5, protection mechanism; 51, rotating shaft; 52, bidirectional lead screw; 53, connecting rod; 54, protective cover; 55, inclined groove; 56, knob; 57, slider; 6, shielding mechanism; 61, rotating rod; 62, baffle; 63, driven bevel gear; 64, driving bevel gear. Specific embodiments

[0026] In order to make the purpose and advantages of the present utility model clearer, the following specifically describes the present utility model in combination with embodiments. It should be understood that the following text only describes one or several specific implementation manners of the present utility model, and does not strictly limit the specific protection scope claimed by the present utility model. As used herein, the terms "parallel" and "perpendicular" are not limited to their strict geometric definitions, but include tolerances for machining or human errors that are reasonable and inconsistent;

[0027] Combined with Figures 1 to 6 shown below, the specific features of the signal power amplifier applicable to tunnels are described in detail:

[0028] This embodiment provides a signal power amplifier applicable to tunnels, including a signal power amplifier body 1. A communication interface 2 is fixedly installed on the side wall of the signal power amplifier body 1, and a connecting seat 3 is fixedly installed at the bottom of the signal power amplifier body 1. By passing a bolt through the connecting seat 3 and driving it into the inner wall of the tunnel wall, the signal power amplifier body 1 can be hung on the tunnel wall. Heat dissipation holes 4 are provided on both sides of the signal power amplifier body 1. When the signal power amplifier body 1 is operating, the heat inside the signal power amplifier body 1 can be discharged through the heat dissipation holes 4, avoiding high temperatures of the electronic devices inside the signal power amplifier body 1. A protection mechanism 5 for protecting the communication interface 2 is provided on the signal power amplifier body 1. By setting the protection mechanism 5, the communication interface 2 can be protected when the signal power amplifier body 1 is idle, preventing impurities from invading the inside of the communication interface 2. A shielding mechanism 6 for shielding the heat dissipation holes 4 is provided on the signal power amplifier body 1. By setting the shielding mechanism 6, the heat dissipation holes 4 can be blocked, preventing insects and moths from invading the inside of the signal power amplifier body 1 through the heat dissipation holes 4.

[0029] Among them, the protection mechanism 5 includes a rotating shaft 51, a bidirectional lead screw 52, a connecting rod 53, a protective cover 54, an inclined groove 55, a knob 56, and a slider 57. One end of the bidirectional lead screw 52 is rotatably connected to the side wall of the connecting seat 3, and the other end of the bidirectional lead screw 52 passes through the connecting seat 3 and is fixedly installed with a knob 56. The penetration part of the bidirectional lead screw 52 and the connecting seat 3 is rotatably connected. A rotating shaft 51 is rotatably connected to the side wall of the signal power amplifier body 1, and a protective cover 54 is fixedly installed on the outer wall of the rotating shaft 51. By rotating the protective cover 54 and the rotating shaft 51, the protective cover 54 can be attached to or separated from the outer wall of the signal power amplifier body 1. The communication interface 2 on the side wall of the signal power amplifier body 1 can be covered by the protective cover 54, thereby preventing impurities from invading the inside of the communication interface 2 when the communication interface 2 is in an idle state. An inclined groove 55 is provided at the bottom of the protective cover 54. Two groups of sliders 57 are threadedly connected to the outer wall of the bidirectional lead screw 52. The top of the slider 57 is attached to the bottom of the signal power amplifier body 1, and a connecting rod 53 is fixedly installed on the side wall of the slider 57. One end of the connecting rod 53 away from the slider 57 is attached to the inner wall of the inclined groove 55. When the slider 57 drives the connecting rod 53 to move, the connecting rod 53 will squeeze the inclined groove 55, thereby causing the protective cover 54 to drive the rotating shaft 51 to rotate.

[0030] In order to protect the communication interface 2 and prevent impurities from entering the interior of the communication interface 2, the specific operation is as follows: When the signal power amplifier body 1 is idle and the communication interface 2 is not connected to a wire, the two-way lead screw 52 is rotated through the knob 56. The rotation of the two-way lead screw 52 can drive the two groups of sliders 57 threadedly connected thereto to move synchronously in opposite directions and approach each other along the bottom of the signal power amplifier body 1. At the same time, the two groups of sliders 57 will drive the two groups of connecting rods 53 to approach each other. At this time, the connecting rods 53 will move along the inner wall of the inclined groove 55 and push the protective cover 54, so that the protective cover 54 drives the rotating shaft 51 to rotate, so that the protective cover 54 can be rotated and attached to the side wall of the signal power amplifier body 1. At this time, the communication interface 2 on the side wall of the signal power amplifier body 1 can be covered by the protective cover 54, so as to prevent impurities from entering the interior of the communication interface 2 when the communication interface 2 is idle.

[0031] The above-mentioned shielding mechanism 6 includes a rotating rod 61, a baffle 62, a driven bevel gear 63, and a driving bevel gear 64; the rotating rod 61 is rotatably connected to the top of the signal power amplifier body 1, and a baffle 62 is fixedly installed on the outer wall of the rotating rod 61. The baffle 62 is attached to the outer wall of the signal power amplifier body 1. The rotating rod 61 can drive the baffle 62 to rotate and fit on the outer wall of the signal power amplifier body 1. At this time, the baffle 62 can be used to block the heat dissipation holes 4 to prevent insects and moths from entering the interior of the signal power amplifier body 1 through the heat dissipation holes 4. A driven bevel gear 63 is fixedly installed on the outer wall of the rotating rod 61, and a driving bevel gear 64 is fixedly installed on the top of the rotating shaft 51. The driving bevel gear 64 meshes with the driven bevel gear 63. When the rotating shaft 51 rotates, the driving bevel gear 64 and the driven bevel gear 63 can drive the rotating rod 61 to rotate in opposite directions synchronously.

[0032] In order to prevent insects from entering the interior of the signal power amplifier body 1 through the heat dissipation holes 4 when the signal power amplifier body 1 is idle, during the process of the protective cover 54 gradually approaching the side wall of the signal power amplifier body 1, the rotating shaft 51 will drive the driving bevel gear 64 to rotate. When the driving bevel gear 64 rotates, it can drive the rotating rod 61 to rotate in cooperation with the driven bevel gear 63 meshing therewith. During the rotation of the rotating rod 61, the baffle 62 will be driven to gradually rotate downward, so that the baffle 62 can be attached to the outer wall of the heat dissipation holes 4, and the baffle 62 is used to block the heat dissipation holes 4. When the signal power amplifier body 1 stops operating, there is no need for heat dissipation. By blocking the heat dissipation holes 4 with the baffle 62, insects and moths can be prevented from entering the interior of the signal power amplifier body 1 through the heat dissipation holes 4, so as to avoid insects interfering with the normal operation of the signal power amplifier body 1.

[0033] The above has generally described the present utility model in detail. However, based on the present utility model, some modifications or improvements can be made thereto, which are obvious to those of ordinary skill in the art. Therefore, modifications or improvements made without departing from the spirit and idea of the present utility model are within the protection scope of the present utility model.

Claims

1. A signal power amplifier applicable to tunnels, comprising a signal power amplifier body (1). A communication interface (2) is fixedly installed on the side wall of the signal power amplifier body (1). A connection base (3) is fixedly installed at the bottom of the signal power amplifier body (1). Heat dissipation holes (4) are formed on both sides of the signal power amplifier body (1), and it is characterized in that: A protection mechanism (5) for protecting the communication interface (2) is provided on the signal power amplifier body (1), and a shielding mechanism (6) for shielding the heat dissipation holes (4) is provided on the signal power amplifier body (1).

2. The signal power amplifier applicable to a tunnel according to claim 1, characterized in that: The protection mechanism (5) includes a bidirectional lead screw (52). One end of the bidirectional lead screw (52) is rotatably connected to the side wall of the connecting seat (3), and the other end of the bidirectional lead screw (52) penetrates through the connecting seat (3) and is fixedly installed with a knob (56). The penetration part of the bidirectional lead screw (52) and the connecting seat (3) is rotatably connected.

3. The signal power amplifier applicable to a tunnel according to claim 2, characterized in that: A rotating shaft (51) is rotatably connected to the side wall of the signal power amplifier body (1), and a protective cover (54) is fixedly installed on the outer wall of the rotating shaft (51).

4. The signal power amplifier applicable to a tunnel according to claim 3, characterized in that: An inclined groove (55) is formed at the bottom of the protective cover (54).

5. The signal power amplifier applicable to a tunnel according to claim 2, wherein: Two groups of sliders (57) are threadedly connected to the outer wall of the bidirectional lead screw (52). The tops of the sliders (57) are attached to the bottom of the signal power amplifier body (1), and a connecting rod (53) is fixedly installed on the side wall of the slider (57). One end of the connecting rod (53) away from the slider (57) is attached to the inner wall of the inclined groove (55).

6. The signal power amplifier applicable to tunnels according to claim 1, characterized in that: The shielding mechanism (6) includes a rotating rod (61). The rotating rod (61) is rotatably connected to the top of the signal power amplifier body (1), and a baffle (62) is fixedly installed on the outer wall of the rotating rod (61). The baffle (62) is attached to the outer wall of the signal power amplifier body (1).

7. The signal power amplifier applicable to a tunnel according to claim 6, characterized in that: A driven bevel gear (63) is fixedly installed on the outer wall of the rotating rod (61).

8. The signal power amplifier applicable to a tunnel according to claim 3, characterized in that: A driving bevel gear (64) is fixedly installed on the top of the rotating shaft (51). The driving bevel gear (64) meshes with the driven bevel gear (63).

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