Ultra-wide-span three-frequency combiner for high-speed rail

Abstract

The utility model discloses a high-speed rail ultra-wide span three-frequency combiner, which comprises a shell, a shell cover is arranged on the shell, two sides of the shell are respectively provided with a plurality of connecting blocks, one side, far away from the shell, of each connecting block is fixedly provided with a connecting port, a partition plate is fixedly arranged in the shell, and the partition plate is fixedly connected with the shell. A partition plate is arranged in the shell, the partition plate divides the shell into a first cavity and a second cavity, a band-pass filter and a low-pass filter are arranged in the shell, a plurality of resonance rods are fixedly arranged on the side wall of the shell cover in a penetrating mode, a plurality of positioning screw rods are arranged at the top of the shell cover, and the shell cover and the shell are both in threaded fit with the positioning screw rods. According to the multi-frequency combiner, the problem that when the coupling degree between signals in an existing multi-frequency combiner is weak, a device needs to be additionally arranged for compensation, and consequently the manufacturing cost of the whole multi-frequency combiner is increased is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of combiners, in particular to an ultra-wide span three-frequency combiner for high-speed railways. Background Art

[0002] At present, my country's mobile communications are developing rapidly. With the rapid increase in mobile phone users, mobile phones are used more and more frequently in large buildings such as convention centers, exhibition halls, airports, subways, hotels, and office buildings. However, due to the shielding of the building structure itself and the ping-pong effect or island effect of high-rise buildings, such places often become blind spots for network signal coverage or areas with poor signal quality. In addition, since different mobile phone users belong to different operators, the network frequencies used by different operators are also different. In order to meet the usage requirements of mobile phone users belonging to different operators, it is necessary to install receiving devices and transmitting devices with different network frequencies respectively. This makes installation troublesome and also increases the equipment cost.

[0003] However, when the coupling degree between signals in the existing multi-frequency combiner is weak, additional devices need to be added to compensate for it, which increases the manufacturing cost of the entire multi-frequency combiner. Therefore, the utility model proposes a high-speed rail ultra-wide span three-frequency combiner to solve the above problem. Utility Model Content

[0004] In view of the defects of the above-mentioned prior art, the purpose of the present invention is to provide an ultra-wide span three-frequency combiner for high-speed railways.

[0005] To achieve the above-mentioned purpose, the utility model provides a high-speed rail ultra-wide span three-frequency combiner, including a shell, a shell cover is arranged on the shell, a plurality of connection blocks are arranged on both sides of the shell, a connection port is fixedly arranged on the side of the connection block away from the shell, a partition plate is fixedly arranged in the shell, the partition plate separates the shell into a first cavity and a second cavity, a bandpass filter and a low-pass filter are arranged in the shell, and a plurality of resonant rods are fixedly arranged through the side wall of the shell cover.

[0006] Furthermore, a plurality of positioning screws are arranged on the top of the housing cover, and the housing cover and the housing are both threadedly matched with the positioning screws. The housing cover is fixed to the housing by tightening the positioning screws.

[0007] Furthermore, a plurality of positioning screws are arranged on the outside of the connection block, a plurality of positioning holes are arranged on the connection block, and the connection block is fixed by tightening the positioning screws.

[0008] Furthermore, ear blocks are respectively arranged at four corners of the side wall of the shell, the ear blocks are fixedly arranged on the outer bottom of the shell, and mounting holes are arranged on the ear blocks.

[0009] Furthermore, a groove body is provided on the back side of the shell, a bottom frame is fixedly provided in the groove body, and the height of the bottom frame is lower than the depth of the groove body.

[0010] Furthermore, the partition plate is arranged in a Z shape, and the partition plate and the shell are integrally formed.

[0011] Furthermore, the outer sides of the shell and the shell cover are both provided with insulating paint, the ear block and the shell are integrally formed, and the insulating paint is epoxy resin paint.

[0012] Furthermore, a vertical hole is provided on one side of the top of the shell, and the vertical hole is provided above the ear block.

[0013] Furthermore, a positioning sleeve block is provided on the outer fixed sleeve of the resonance rod, and the positioning sleeve block is fixedly arranged on the outer wall of the shell.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. Through the bandpass filter and low-pass filter structures, the combiner combines the 350MHz / 700MHz / 1800MHz three-band signals into one port to achieve ultra-span broadband signal combination. The combiner product adopts the hybrid mode of electrical coupling and 1 / 4 wavelength short-circuit electromagnetic field to achieve high isolation index between the three frequency bands and achieve ultra-span broadband signal combination. It adopts two bandpass filters and one low-pass filter in combination and is used in the high-speed rail communication system to realize the combination of detection system signals, public security system signals and communication signals, solving the problem that when the coupling degree between signals in the existing multi-frequency combiner is weak, an additional device needs to be added to compensate, which increases the manufacturing cost of the entire multi-frequency combiner.

[0016] 2. Through the provided structures such as the shell cover, the positioning screw and the shell, the shell cover is fixed to the shell by tightening the positioning screw. The shell cover and the shell are easy to install and disassemble. Through the provided structures such as the ear block, the mounting hole and the shell, the combiner can be easily installed and fixed under the action of the ear block and the mounting hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the scheme in the utility model, a brief introduction is given below to the drawings required for use in the description of the embodiments of the utility model. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is the first stereogram provided by the utility model;

[0019] Figure 2 This is a three-dimensional diagram of the utility model without a housing cover;

[0020] Figure 3 It is the front view provided by the utility model;

[0021] Figure 4 It is a bottom view provided by the utility model;

[0022] Figure 5 It is a top view provided by the utility model;

[0023] Figure 6 It is a side view provided by the utility model;

[0024] Figure 7 It is the second stereogram provided by the utility model;

[0025] Figure 8 It is a rear view provided by the utility model;

[0026] Fig. 9 It is an exploded view provided by the utility model.

[0027] Description of reference numerals:

[0028] 1. Positioning screw; 2. Shell cover; 3. Positioning sleeve block; 4. Resonant rod; 5. Shell; 6. Ear block; 7. Connection port; 8. Positioning screw; 9. Connection block; 10. Partition plate; 11. Band-pass filter; 12. Low-pass filter; 13. Vertical hole; 14. Bottom frame; 15. Second cavity; 16. First cavity; 17. Mounting hole; 18. Slot body. DETAILED DESCRIPTION

[0029] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more explicit definition of the protection scope of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0030] The terms "including" and "having" and any variations thereof in the specification and claims of the present utility model and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present utility model or the above-mentioned drawings are used to distinguish different objects rather than to describe a specific order.

[0031] See also Figure 1-9The utility model provides a high-speed railway ultra-wide span three-frequency combiner, including a shell 5, a shell cover 2 is arranged on the shell 5, a plurality of connection blocks 9 are arranged on both sides of the shell 5, a connection port 7 is fixedly arranged on the side of the connection block 9 away from the shell 5, a partition plate 10 is fixedly arranged in the shell 5, the partition plate 10 divides the shell 5 into a first cavity 16 and a second cavity 15, a band-pass filter 11 and a low-pass filter 12 are arranged in the shell 5, a plurality of resonant rods 4 are fixedly arranged through the side wall of the shell cover 2, a groove 18 is opened on the back of the shell 5, a bottom frame 14 is fixedly arranged in the groove 18, the height of the bottom frame 14 is lower than the depth of the groove 18, the partition plate 10 is arranged in a Z shape, the partition plate 10 is integrally formed with the shell 5, the outer sides of the partition plate 10, the shell 5 and the shell cover 2 are all provided with insulating paint, the ear block 6 is integrally formed with the shell 5, the insulating paint is epoxy resin paint, and one side of the top of the shell 5 A vertical hole 13 is provided, and the vertical hole 13 is arranged above the ear block 6. A positioning sleeve block 3 is fixedly sleeved outside the resonance rod 4, and the positioning sleeve block 3 is fixedly arranged on the outer wall of the shell 5. Through the bandpass filter 11 and the low-pass filter 12 and other structures, the combiner product combines the three-band signals of 350MHz / 700MHz / 1800MHz into one port to achieve ultra-span broadband signal combination. The combiner product adopts a hybrid method of electrical coupling and 1 / 4 wavelength short-circuit electromagnetic field to achieve high isolation indicators between the three frequency bands and achieve ultra-span broadband signal combination. It adopts two bandpass filters and a low-pass filter in combination and is used in the high-speed rail communication system to realize the combination of detection system signals, public security system signals and communication signals, which solves the problem that when the coupling between signals in the existing multi-frequency combiner is weak, an additional device needs to be added to compensate, which increases the manufacturing cost of the entire multi-frequency combiner.

[0032] See also Figure 1-7 , a plurality of positioning screws 1 are arranged on the top of the shell cover 2, and the shell cover 2 and the shell 5 are both threadedly matched with the positioning screws 1, and the shell cover 2 is fixed to the shell 5 by tightening the positioning screws 1, and a plurality of positioning screws 8 are arranged on the outside of the connecting block 9, and a plurality of positioning holes are arranged on the connecting block 9, and the connecting block 9 is fixed by tightening the positioning screws 8, and ear blocks 6 are arranged at the four corners of the side wall of the shell 5, respectively, and the ear blocks 6 are fixedly arranged at the outer bottom of the shell 5, and mounting holes 17 are arranged on the ear blocks 6. Through the structures such as the shell cover 2, the positioning screws 1 and the shell 5, the shell cover 2 is fixed to the shell 5 by tightening the positioning screws 1, and the shell cover 2 and the shell 5 are easy to install and disassemble. Through the structures such as the ear blocks 6, the mounting holes 17 and the shell 5, under the action of the ear blocks 6 and the mounting holes 17, it is convenient to install and fix the combiner.

[0033] Working principle and usage of the utility model:

[0034] When in use, the combiner combines the three-band signals of 350MHz / 700MHz / 1800MHz into one port to achieve ultra-span broadband signal combining. The combiner product adopts a hybrid method of electrical coupling and 1 / 4 wavelength short-circuit electromagnetic field to achieve high isolation indicators between the three frequency bands and achieve ultra-span broadband signal combining. It combines two band-pass filters and one low-pass filter and is used in high-speed rail communication systems to achieve detection system signals, public security system signals and communication signals. Through the provided shell cover 2, positioning screw 1 and shell 5 structures, the shell cover 2 is fixed to the shell 5 by tightening the positioning screw 1. The shell cover 2 and the shell 5 are easy to install and disassemble. Through the provided ear block 6, mounting hole 17 and shell 5 structures, the combiner is easy to install and fix under the action of the ear block 6 and the mounting hole 17.

[0035] The above description is only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the utility model, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the utility model.

Claims

1. A high-speed railway ultra-wide span three-frequency combiner, characterized in that: It includes a shell, a shell cover is arranged on the shell, a plurality of connection blocks are arranged on both sides of the shell, a connection port is fixedly arranged on the side of the connection block away from the shell, a partition plate is fixedly arranged in the shell, the partition plate separates the shell into a first cavity and a second cavity, a bandpass filter and a low-pass filter are arranged in the shell, and a plurality of resonant rods are fixedly arranged through the side wall of the shell cover.

2. The high-speed railway ultra-wide span triple-frequency combiner according to claim 1, characterized in that: A plurality of positioning screws are arranged on the top of the shell cover, and both the shell cover and the shell are threadably matched with the positioning screws, and the shell cover is fixed to the shell by tightening the positioning screws.

3. The high-speed railway ultra-wide span triple-frequency combiner according to claim 2 is characterized in that: A plurality of positioning screws are arranged on the outside of the connection block, a plurality of positioning holes are arranged on the connection block, and the connection block is fixed by tightening the positioning screws.

4. The high-speed railway ultra-wide span triple-frequency combiner according to claim 3, characterized in that: Ear blocks are respectively arranged at the four corners of the side wall of the shell, and the ear blocks are fixedly arranged at the outer bottom of the shell, and mounting holes are arranged on the ear blocks.

5. The high-speed railway ultra-wide span triple-frequency combiner according to claim 4, characterized in that: A groove body is provided on the back of the shell, a bottom frame is fixedly arranged in the groove body, and the height of the bottom frame is lower than the depth of the groove body.

6. The high-speed railway ultra-wide span triple-frequency combiner according to claim 5, characterized in that: The partition plate is arranged in a Z shape, and the partition plate is integrally formed with the shell.

7. The high-speed railway ultra-wide span triple-frequency combiner according to claim 6, characterized in that: The outer sides of the shell and the shell cover are both provided with insulating paint, the ear block and the shell are integrally formed, and the insulating paint is epoxy resin paint.

8. The high-speed railway ultra-wide span triple-frequency combiner according to claim 7, characterized in that: A vertical hole is arranged on one side of the top of the shell body, and the vertical hole is arranged above the ear block.

9. The high-speed railway ultra-wide span triple-frequency combiner according to claim 8, characterized in that: The outer fixed sleeve of the resonance rod is provided with a positioning sleeve block, and the positioning sleeve block is fixedly arranged on the outer wall of the shell.

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