Waterproof trunk amplifier

By adopting a trapezoidal fixed box and drainage channel structure in the trunk amplifier, combined with a hydrophobic sleeve and drainage channel, the problem of damage caused by rainwater ingress in the outdoor environment is solved, achieving more efficient waterproof performance and extended equipment life.

CN224264978UActive Publication Date: 2026-05-19SICHUAN ZHONGKE MICROCHIP ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN ZHONGKE MICROCHIP ELECTRONICS CO LTD
Filing Date
2025-07-15
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing trunk amplifiers are easily damaged by rainwater in outdoor environments and lack effective hydrophobic design, resulting in a shortened equipment lifespan.

Method used

A waterproof trunk amplifier was designed, which adopts a trapezoidal fixed box and a drainage channel structure, combined with a hydrophobic sleeve and a flow channel to provide a dedicated flow channel. The trapezoidal slope and elastic plate return spring are used to prevent rainwater accumulation, and a water storage tank is used to alleviate the problem of water accumulation when the flow rate is too high.

Benefits of technology

It effectively prevents rainwater accumulation and debris blockage, improves the waterproof performance of the equipment, reduces the risk of corrosion and damage, and extends the service life of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a waterproof trunk amplifier, and relates to the technical field of trunk amplifiers, the waterproof trunk amplifier comprises a trunk amplifier body, one side of the trunk amplifier body is detachably connected with a fixing box body, the fixing box body is trapezoidal, and one side of the fixing box body is provided with a drainage groove; the fixed box body is arranged in a trapezoid shape, and rainwater is not prone to accumulation and can flow down along the inclined face under the action of gravity by means of the inclined side face of the trapezoid. Meanwhile, the drainage groove in one side of the fixed box body and the drainage groove in the drainage sleeve provide a special flowing channel for rainwater. During working, after falling on the trapezoidal fixed box body, rainwater flows into the drainage groove along the inclined surface and then is quickly discharged through the drainage groove, so that the rainwater is prevented from being accumulated on the fixed box body. And the connecting wire is inserted into the drainage groove, so that the stability of wire connection is ensured, and the drainage function of the drainage groove is not influenced.
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Description

Technical Field

[0001] This utility model relates to the field of trunk amplifier technology, specifically a waterproof trunk amplifier. Background Technology

[0002] A trunk amplifier, or trunk amplifier for short, is a signal amplification device used when power is too low to meet coverage requirements. When the power of the signal source equipment is insufficient to meet coverage requirements, this device can amplify the power of the signal source (usually a microcell) to cover a wider area. Trunk amplifiers are often placed outdoors, and their inlets and outlets are prone to rainwater ingress. When rainwater enters the trunk amplifier, it can damage the internal wiring, thus requiring further improvement in its waterproof performance.

[0003] A Chinese patent (publication number: CN212231452U) discloses a waterproof trunk amplifier, including a sealing cylinder, a fixing mechanism, and a sealing mechanism. A cable extending from the internal port of the trunk amplifier body is aligned with the arched groove of the lower arched clamping block. The cable is then secured by the upper arched clamping block. Rotating the second bolt and the second nut compresses the upper and lower arched clamping blocks. Simultaneously, upper and lower protective pads protect the cable during compression, preventing damage to the cable's outer wall. A square sealing ring is aligned with the first and second square grooves. Rotating the first bolt compresses the outer wall of the square sealing ring. The lower and upper rubber sealing blocks are aligned with the outer wall of the cable. Rotating the first nut causes the sealing cylinder to compress the lower and upper rubber sealing blocks.

[0004] During use, the above-mentioned equipment uses a rectangular fixing box to provide waterproof protection for the wiring. Although it has a certain degree of waterproof protection, it lacks effective drainage. When it rains, rainwater may accumulate on the rectangular fixing box, causing corrosion and affecting the service life of the equipment.

[0005] To address this issue, we designed a waterproof trunk amplifier. Utility Model Content

[0006] The purpose of this invention is to provide a waterproof trunk amplifier to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, this utility model provides a waterproof trunk amplifier, including a trunk amplifier body, a fixed box detachably connected to one side of the trunk amplifier body, the fixed box being trapezoidal in shape, a drainage groove being provided on one side of the fixed box, a connecting wire being inserted into the drainage groove, one end of the connecting wire extending into the trunk amplifier body, and a drainage groove being provided on the hydrophobic sleeve.

[0008] Furthermore, multiple guide grooves are formed on the inclined surface of the fixed box, and the multiple guide grooves are distributed in a linear array with equal spacing along the width direction of the fixed box.

[0009] Furthermore, a fixing plate is connected to one side of the fixing box, and a screw is threaded onto the fixing plate, with the other end of the screw extending into the trunk amplifier body.

[0010] Furthermore, an elastic plate is connected to one side of the fixed housing, a reset spring is connected to one side of the fixed housing, and the other end of the reset spring is connected to the trunk amplifier body.

[0011] Furthermore, two symmetrical water tanks are connected to the side of the fixed housing away from the trunk amplifier body, and the bottom of the water tanks is provided with drainage holes.

[0012] Furthermore, two mutually symmetrical limiting rings are slidably disposed within the trunk amplifier body, the connecting wire is located between the two limiting rings, and limiting screws are threadedly connected to the limiting rings.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The fixed box is trapezoidal in shape, utilizing the sloping sides of the trapezoid to prevent rainwater from accumulating and allowing it to flow down the slope under gravity. Simultaneously, drainage channels on one side of the fixed box and on the drainage sleeve provide dedicated flow paths for rainwater. During operation, rainwater falls onto the trapezoidal fixed box, flows down the slope into the drainage channels, and then quickly drains through the channels, preventing rainwater accumulation on the fixed box. The connecting wires are inserted into the drainage channels, ensuring the stability of the wire connection without affecting the drainage function of the channels.

[0015] 2. When rainwater continuously hits the fixed box, it causes the box to shake. The elastic plate and return spring utilize their elastic properties to appropriately increase the amplitude of this shaking. This rhythmic shaking can dislodge fallen leaves, branches, and other debris accumulated on the fixed box, preventing debris from clogging the drainage channel and affecting the drainage effect. Attached Figure Description

[0016] Figure 1This is a three-dimensional structural diagram of the overall external structure of this utility model;

[0017] Figure 2 This is a bottom view of the present invention;

[0018] Figure 3 This is a cross-sectional view of the present invention;

[0019] Figure 4 This utility model Figure 1 Enlarged view of point A in the middle;

[0020] Figure 5 This utility model Figure 2 Enlarged view of point B in the middle;

[0021] Figure 6 This utility model Figure 3 A magnified view of point C in the middle.

[0022] In the diagram: 1. Main amplifier body; 2. Fixed housing; 3. Drainage sleeve; 4. Connecting wire; 5. Drainage channel; 6. Fixing plate; 7. Elastic plate; 8. Reset spring; 9. Water tank; 10. Limiting clamp; 11. Limiting screw. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-6 This utility model provides a technical solution: a waterproof trunk amplifier, including a trunk amplifier body 1, a fixed box 2 detachably connected to one side of the trunk amplifier body 1, the fixed box 2 is trapezoidal, a drainage groove 5 is provided on one side of the fixed box 2, a connecting wire 4 is inserted into the drainage groove 5, one end of the connecting wire 4 extends into the trunk amplifier body 1, and a drainage groove 5 is provided on the hydrophobic sleeve 3.

[0025] In practice, the fixed box 2 is trapezoidal in shape. This shape changes the structure of the traditional rectangular fixed box 2, utilizing the inclined sides of the trapezoid to prevent rainwater from accumulating and allowing it to flow down the slope under gravity. Simultaneously, the drainage channel 5 on one side of the fixed box 2 and the drainage channel 5 on the drainage sleeve 3 provide dedicated flow channels for rainwater. During operation, rainwater falls onto the trapezoidal fixed box 2, flows down the slope into the drainage channel 5, and is then quickly discharged through the drainage channel 5, preventing rainwater accumulation on the fixed box 2. The connecting wire 4 is inserted into the drainage channel 5, ensuring the stability of the wire connection without affecting the drainage function of the drainage channel 5.

[0026] See Figure 1-6 Multiple flow channels are formed on the inclined surface of the fixed box 2, and these multiple flow channels are distributed in a linear array with equal spacing along the width direction of the fixed box 2.

[0027] In practice, rainwater falling on the slope is dispersed into various drainage channels, accelerating the drainage speed and preventing local accumulation of rainwater on the slope. Compared to relying solely on the trapezoidal shape for drainage, the multiple drainage channels increase the drainage area and efficiency, allowing rainwater to drain more quickly and thoroughly, further reducing the erosion of the fixed box 2 by rainwater.

[0028] See Figure 1-6 A fixing plate 6 is connected to one side of the fixing box 2. A screw is threaded onto the fixing plate 6, and the other end of the screw extends into the trunk amplifier body 1.

[0029] In practice, tightening the screws ensures a tight connection between the mounting box 2 and the trunk amplifier body 1, reducing gaps between them and thus minimizing the possibility of rainwater seeping in at the connection point. The detachable connection facilitates future maintenance and replacement of either the mounting box 2 or the trunk amplifier body 1.

[0030] See Figure 1-6 An elastic plate 7 is connected to one side of the fixed box 2, and a reset spring 8 is connected to one side of the fixed box 2. The other end of the reset spring 8 is connected to the trunk amplifier body 1.

[0031] In practice, when rainwater continuously hits the fixed box 2, it causes the fixed box 2 to shake. The elastic plate 7 and the return spring 8 will use their elastic properties to appropriately increase the amplitude of this shaking. This rhythmic shaking can shake off fallen leaves, branches and other debris accumulated on the fixed box 2, preventing debris from clogging the drainage channel 5 and affecting the drainage effect.

[0032] See Figure 1-6 Two symmetrical water tanks 9 are connected to the side of the fixed box 2 away from the trunk amplifier body 1, and the bottom of the water tank 9 is provided with a drain hole.

[0033] In practice, during operation, some rainwater may not be discharged in time due to excessive flow during the diversion process. At this time, the water storage tank 9 can collect it and then slowly discharge it through the drainage hole at the bottom, preventing rainwater from overflowing into the connection between the fixed box 2 and other components. At the same time, when the rainfall is too heavy, the rainwater discharge speed is less than the precipitation speed. At this time, the gravity inside the water storage tank 9 increases, thereby enhancing the swaying amplitude of the fixed box 2.

[0034] See Figure 1-6 The trunk amplifier body 1 has two mutually symmetrical limiting clamps 10 that slide inside it. The connecting wire 4 is located between the two limiting clamps 10. The limiting clamps 10 are threaded with limiting screws 11.

[0035] In practice, tighten the limit screw 11 to clamp the connecting wire 4 with the two limit clamps 10, preventing the connecting wire 4 from shifting due to external pulling or other reasons, and avoiding gaps at the connection points between the wire and the fixed box 2 and other components, thereby preventing rainwater from seeping into the interior and damaging the circuit.

[0036] Working principle: The fixed housing 2 is detachably connected to the trunk amplifier body 1 and tightened by screws on the fixing plate 6 on one side of the fixed housing 2. When it rains, the rainwater first falls on the trapezoidal fixed housing 2. The inclined side of the trapezoid allows the rainwater to slide down naturally under the action of gravity, avoiding a large accumulation on the surface of the housing. At this time, multiple guide channels that are linearly arrayed and evenly spaced along the width direction on the inclined surface of the fixed housing 2 begin to function, dispersing the rainwater on the inclined surface and guiding it to the guide channels, accelerating the rainwater discharge speed and preventing rainwater from accumulating locally on the inclined surface.

[0037] As rainfall increases, rainwater continuously impacts the fixed box 2, causing it to shake. The elastic plate 7 and return spring 8 on one side of the fixed box 2 utilize their elasticity to appropriately amplify this shaking amplitude. This rhythmic shaking dislodges accumulated debris such as leaves and branches from the fixed box 2, preventing it from clogging the drainage channel and affecting the drainage effect.

[0038] In the event of heavy rain or other severe conditions, when the rainwater flow is too large and some rainwater cannot be discharged through the drainage channel in time, the two symmetrical water storage tanks 9 on the side of the fixed housing 2 away from the main amplifier body 1 will temporarily collect the rainwater. The collected rainwater is slowly discharged through the drain hole at the bottom of the water storage tank 9 to prevent rainwater from overflowing into the connection points between the fixed housing 2 and other components. At the same time, the increased rainwater in the water storage tank 9 increases the gravity, further enhancing the shaking amplitude of the fixed housing 2 and improving the effect of shaking off debris.

[0039] By tightening the limiting screw 11, the connecting wire 4 is clamped to prevent the wire from shifting due to external pulling or shaking of the fixed box 2. This avoids gaps at the connection points between the wire and the fixed box 2 and other components, thus preventing rainwater from seeping into the interior and damaging the circuit. In addition, the drainage groove 5 on the drainage sleeve 3 cooperates with the drainage groove 5 on one side of the fixed box 2 to provide an additional drainage channel for rainwater around the connecting wire 4, further reducing the retention of rainwater at the wire connection points.

Claims

1. A waterproof trunk amplifier, comprising a trunk amplifier body (1), characterized in that, A fixed box (2) is detachably connected to one side of the trunk amplifier body (1). The fixed box (2) is trapezoidal in shape. A drainage groove (5) is provided on one side of the fixed box (2). A connecting wire (4) is inserted into the drainage groove (5). One end of the connecting wire (4) extends into the trunk amplifier body (1). A drainage groove (5) is provided on the hydrophobic sleeve (3).

2. The waterproof trunk amplifier as described in claim 1, characterized in that: Multiple guide grooves are formed on the inclined surface of the fixed box (2), and the multiple guide grooves are distributed in a linear array with equal spacing along the width direction of the fixed box (2).

3. A waterproof trunk amplifier as described in claim 2, characterized in that: A fixing plate (6) is connected to one side of the fixing box (2), and a screw is threaded onto the fixing plate (6), with the other end of the screw extending into the trunk amplifier body (1).

4. A waterproof trunk amplifier as described in claim 3, characterized in that: An elastic plate (7) is connected to one side of the fixed box (2), and a reset spring (8) is connected to one side of the fixed box (2). The other end of the reset spring (8) is connected to the trunk amplifier body (1).

5. A waterproof trunk amplifier as described in claim 4, characterized in that: The fixed box (2) is connected to two symmetrical water tanks (9) on the side away from the trunk amplifier body (1), and the bottom of the water tank (9) is provided with a drain hole.

6. A waterproof trunk amplifier as described in claim 5, characterized in that: The trunk amplifier body (1) has two mutually symmetrical limiting clamps (10) slidably arranged inside, and the connecting wire (4) is located between the two limiting clamps (10). The limiting clamps (10) are threaded with limiting screws (11).