CN214481713U - Relay box - Google Patents

Abstract

The embodiment of the utility model provides a relay box belongs to electrical equipment technical field. The utility model discloses aim at solving the not good problem of relevant art trunk waterproof nature. The relay box comprises a box body, wherein the box body comprises two half shells which are detachably mounted together, and the two half shells define a cavity for mounting the communication module; the outer surface of the half shell is provided with a plurality of linear water guide ribs extending from the top surface to the bottom surface, and a water guide groove is formed between every two adjacent water guide ribs. Use the utility model provides a relay box is favorable to improving the waterproof nature of box, improves relay box's life.

Description

Relay box

Technical Field

The embodiment of the utility model provides a relate to electrical equipment technical field, especially relate to a relay box.

Background

A train tail safety protection device (i.e. a train tail device) is an important driving safety device. The train tail device and the control device arranged on the train head act together, so that the driving safety of the train can be improved, and the operation efficiency of shunting and receiving and dispatching the train is improved, therefore, the train tail device is widely applied to railway transportation.

However, when the train travels in a mountainous area, a tunnel and other weak wireless communication areas, the wireless communication between the train tail device and the control device is unstable, which not only affects the train running speed, but also endangers the running safety. In order to solve the problem, a relay box used in a communication weak field is developed so as to relay and forward signals of a head control device and a train tail device, thereby ensuring normal communication of the head control device and the train tail device.

However, the existing relay box has poor waterproof performance, and the service life of the relay box installed in a field environment is seriously influenced.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a relay box for solve the not good problem of prior art relay box waterproof performance.

The embodiment of the utility model provides a relay box, which comprises a box body;

the box body comprises two half shells which are detachably mounted together, and the two half shells define a cavity for mounting the communication module; the outer surface of the half shell is provided with a plurality of linear water guide ribs extending from the top surface to the bottom surface, and a water guide groove is formed between every two adjacent water guide ribs.

In one realisable form, the junction of the two half shells is provided with a sealing strip.

In an implementable manner, the two half-shells are hingedly connected.

In an achievable manner, the end of the half shell facing away from the hinged end is provided with a handle.

In one implementable form, the half shell comprises a panel and a side wall in secure connection with the panel;

the side wall of one of the half shells is provided with a mounting hole for mounting a connector; alternatively, the first and second electrodes may be,

the side walls of the two half shells are provided with half holes, and the two half holes define mounting holes for mounting the leaky cable connectors.

In an implementable manner, the side walls include a top wall, a bottom wall, a left side wall and a right side wall, the mounting hole being provided in the bottom wall.

In an implementation manner, the communication module includes an uplink leaky cable, a downlink leaky cable, a radio frequency switch module, a signal forwarding module, a voice forwarding module, and a control module, the uplink leaky cable and the downlink leaky cable are disposed outside the housing and are in communication connection with the connector, and the radio frequency switch module, the signal forwarding module, the voice forwarding module, and the control module are mounted in the cavity;

the connector, the radio frequency switch module, the signal forwarding module, the voice forwarding module and the control module are in communication connection;

the control module, the signal forwarding module and the uplink and downlink leaky cable form a first communication link, and the first communication link is used for forwarding signals of the train tail device; the control module, the voice forwarding module and the uplink and downlink leaky cable form a second communication link, and the second communication link is used for forwarding voice information of the handheld radio station;

the radio frequency switch module is in communication connection with the control module and is used for selectively enabling one of the first communication link and the second communication link.

In one implementable form, further comprising a first connecting plate and a second connecting plate disposed inside the cavity;

the first connecting plate is fixedly connected with the panel;

one end of the second connecting plate is fixedly connected with the first connecting plate, and a bent part is formed at the other end of the second connecting plate and used for installing the signal forwarding module.

In an implementation manner, the communication module further comprises a power module and a filter, the filter is fastened to the second connection board, the power module is electrically connected to the control module through the filter, and the power module is fastened to the panel.

In one implementation, the communication module further includes a power divider;

the power divider is fixedly connected with the second connecting plate, the radio frequency switch module is in communication connection with an uplink leaky cable and a downlink leaky cable through the power divider, and the uplink leaky cable and the downlink leaky cable arranged outside the relay box are in communication connection with the radio frequency switch module and the power divider through the connectors;

the power divider is used for dividing the currently forwarded signals or the voice information of the handheld radio station into two paths of equal signals to be output, or the power divider is used for combining and inputting the currently received signals of the uplink and downlink leaky coaxial cables or the voice information of the handheld radio station.

The embodiment of the utility model provides a relay box, it includes the box, the box includes two half shells that detachably install together, two the half shells limit the cavity that is used for installing communication module; the outer surface of the half shell is provided with a plurality of linear water guide ribs extending from the top surface to the bottom surface, and a water guide groove is formed between every two adjacent water guide ribs. Use the utility model provides a relay box holds dress communication equipment is favorable to improving the waterproof nature of relay box, improves the life of relay box.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is easy to see that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a front view of a box according to an embodiment of the present invention;

FIG. 2 is a left side view of the case of FIG. 1;

FIG. 3 is a top view of the case of FIG. 1 after opening;

fig. 4 is a front view of a connection plate according to an embodiment of the present invention;

fig. 5 is a right side view of the connection plate of fig. 4.

Description of reference numerals:

100. a half shell;

110. a panel;

111. a top wall;

112. a left side wall;

113. a bottom wall;

114. a right side wall;

120. a connector;

130. a connecting plate;

131. a first connecting plate;

132. a second connecting plate;

133. a bending section;

140. a radio frequency switch module;

151. a signal forwarding module;

152. a voice forwarding module;

160. a control module;

171. a filter;

172. a power supply module;

180. a power divider;

200. a water guiding rib;

300. a handle;

400. a sealing strip.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

A train tail safety protection device (i.e. a train tail device) is an important driving safety device. The train tail device and the control device arranged on the train head act together, so that the driving safety of the train can be improved, and the operation efficiency of shunting and receiving and dispatching the train is improved, therefore, the train tail device is widely applied to railway transportation. However, when the train travels in a mountainous area, a tunnel and other weak wireless communication areas, the wireless communication between the train tail device and the control device is unstable, which not only affects the train running speed, but also endangers the running safety. In order to solve the problem, a relay box used in a communication weak field is developed so as to relay and forward signals of a head control device and a train tail device, thereby ensuring normal communication of the head control device and the train tail device. However, the existing relay box has poor waterproof performance, and the service life of the relay box installed in a field environment is seriously influenced.

In view of this, the adoption sets up the sealing washer in box connecting portion or forms seal structure among the correlation technique and realizes waterproofly, nevertheless the utility model discloses an inventor discovers, and the water-proof effects who adopts the sealing washer alone can reduce along with the ageing of sealing washer, and form seal structure and can increase manufacturing cost, improve the assembly complexity to influence assembly efficiency. The inventor continuously researches the box body, and finds that after the plurality of linear water guide ribs are arranged on the outer wall of the box body, water on the surface of the relay box can be effectively drained, so that the waterproof performance of the relay box is improved, and if the sealing ring is combined with the relay box, the waterproof performance of the relay box can be obviously improved, and the service life of the relay box is prolonged.

In particular, as will be seen from the description below, the inventors have developed a relay box comprising a box body comprising two half-shells removably mounted together, the two half-shells defining a cavity for mounting a telecommunications module; the outer surface of the half shell is provided with a plurality of linear water guide ribs extending from the top surface to the bottom surface, and a water guide groove is formed between every two adjacent water guide ribs. The communication equipment is arranged in the box body, and rainwater flows down along the water guide ribs and is not easy to be retained on the outer surface of the box body. Therefore, the utility model provides a relay box is favorable to improving the waterproof nature of box, and then improves relay box's life.

While various alternative implementations of the present invention will be described with reference to the drawings, it should be understood by those skilled in the art that the following implementations are illustrative only and not exhaustive, and that certain features or certain examples may be substituted, spliced or combined by those skilled in the art based on these implementations, and still be considered as disclosed in the present invention.

Fig. 1 shows a block diagram of a relay box body. Fig. 2 is a left side view of the case of fig. 1. Fig. 3 shows a top view of a tank after opening.

As shown in fig. 1 and 2, the relay box includes a box body including two half shells 100 detachably mounted together, the two half shells 100 defining a cavity for mounting the communication module so as to mount the equipment inside the box body, preventing the equipment from being exposed to the environment.

The outer surface of the half shell 100 is provided with a plurality of linear water guiding ribs 200 extending from the top surface to the bottom surface, and a linear groove between two adjacent water guiding ribs 200 is a water guiding groove. The straight water guide rib 200 can ensure that rainwater falling outside the box body falls along the water guide groove, so that liquid is prevented from being reserved on the surface of the relay box, and the waterproof performance of the relay box is improved. Therefore, use the embodiment of the utility model provides a relay box is favorable to improving the waterproof nature of box to further improve box and inside communication module's life.

Optionally, the half-shell 100 may include a panel 110 and side surrounding walls that are securely connected to the panel 110. The side walls include a top wall 111, a bottom wall 113, a left side wall 112 and a right side wall 114. Taking the example that the relay box comprises a front half shell and a rear half shell, the front half shell comprises a front panel and a front side wall, the rear half shell comprises a rear panel and a rear side wall, and when the front half shell and the rear half shell are assembled together, the front side wall and the rear side wall jointly form the side wall of the relay box.

Specifically, as shown in fig. 3, two half shells 100 of the box body may be combined into a hexahedral structure with one open end, one side end face of the hexahedron opposite to the open end is a panel 110 of the half shell 100, and four rectangular flat plates surrounding the panel 110 constitute a side surrounding wall top wall 111, a bottom wall 113, a left side wall 112 and a right side wall 114. The two half-shells 100 of the tank, mounted together, can be combined into a hexahedron. Of course, the half-shell 100 of the box body may also be in other shapes and structures capable of accommodating the communication module, such as a semi-sphere or a semi-cylinder, which is not limited herein.

Alternatively, the two housing halves 100 may be hingedly connected so that the two housing halves 100 can be pivotally connected together to facilitate opening the cabinet for equipment maintenance or service.

Referring to fig. 3, two adjacent sidewalls of the two half shells 100 may be respectively provided with a cylindrical structure for hinge-connection. The upper end of the right side wall 114 of the left side housing half 100 is provided with one cylindrical structure and the lower end of the right side wall 114 of the left side housing half 100 is provided with two cylindrical structures. Accordingly, the upper end of the left side wall 112 of the right side half shell 100 is provided with two cylindrical structures and the lower end of the left side wall 112 of the right side half shell 100 is provided with one cylindrical structure. When the two half shells 100 are assembled together, the cylindrical structures of the right half shell 100 and the left half shell 100 are staggered, and the center verticals of the cylindrical structures of the two half shells 100 coincide. The three tubular structures of the upper end and the lower end are hinged together by using a hinge shaft.

In an implementable manner, the two half-shells 100 may also be provided with hinge plates, which are inserted into through-holes in the hinge plates using hinge shafts, thus hinging the two half-shells 100 together.

It will be appreciated that the two housing halves 100 can also be mounted together using a snap-fit arrangement. The two half shells 100 may also be securely joined together using threaded fasteners such as bolts with less disassembly of the two half shells 100.

Optionally, the joint of the two half shells 100 may be provided with a sealing strip 400 to seal a gap at the joint of the two half shells 100, so as to prevent liquid or dust from entering the box from the joint of the two half shells 100, and thus prevent the communication module in the box from being contaminated or damaged.

Specifically, the edges of the two half shells 100 facing the opening direction along the side walls may be provided with mounting grooves, and the sealing strip 400 may be mounted in the mounting grooves so as to prevent the sealing strip 400 from moving and affecting the sealing performance of the joint of the two half shells 100.

Optionally, the end of the half shell 100 remote from the hinged end may be provided with a handle 300 so that a maintenance person can open the two half shells 100 of the box by means of the handle 300 to facilitate carrying and mounting of the repeater box by a worker at a suitable installation site.

In particular, the handle 300 may be a handle commonly found on the market, such as a tool kit or a suitcase, for example, in the form of an arched structure shaped like an arched bridge, the two ends of which are firmly connected to the side of the half-shell 100 facing away from the hinged end. In one implementation, the handle 300 may be integrally formed with the housing half 100.

Optionally, the side walls of one of the half shells 100 are provided with mounting holes for mounting the connectors 120. As shown in fig. 3, the bottom wall 113 of the right housing is provided with a through hole, and the connector 120 is inserted into the through hole of the bottom wall 113. The connector 120 includes a connector 120 terminal located inside the relay box and a connector 120 terminal located outside the relay box. The optical fiber or the leaky cable is connected with the external terminal of the connector 120, and the communication module inside the relay box is connected with the internal terminal, so that the switching function of the communication module and the external cable is realized.

In some examples, the side walls of both half shells 100 may also be provided with half holes, which may define mounting holes for mounting the breakout connectors 120.

Optionally, as shown in fig. 4 and 5, the relay box may further include a connection plate 130 disposed inside the cavity, the connection plate 130 including a first connection plate 131 and a second connection plate 132. Specifically, the first connecting plate 131 may be a horizontally disposed rectangular flat plate, a through hole is formed on the rectangular flat plate, and correspondingly, a mounting hole is also formed on the panel 110 of the half casing 100, and the first connecting plate 131 is mounted on the panel 110 of the cavity by using a threaded fastener such as a bolt to pass through the through hole. The second connecting plate 132 may be a rectangular flat plate structure vertically arranged, one end of the second connecting plate 132 is fixedly connected with the first connecting plate 131, and the other end of the second connecting plate 132 is formed with a bending portion 133. The bent portion is a horizontally disposed rectangular flat plate, the bent portion 133 may also be provided with a through hole, and the communication module may be mounted on the through hole of the bent portion 133 by a screw fastener such as a bolt. Through setting up the connecting plate, can install the communication module in the inside fixed position of box, the connecting wire between the communication module of being convenient for.

With continued reference to fig. 4 and 5, for more stable mounting of the communication module, three first connection plates 131 are provided at the left, right, and lower sides of the communication module, respectively. Accordingly, three second connecting plates 132 are provided to connect with the first connecting plate 131, and the bent portions 133 of the three second connecting plates 132 are overlapped.

In some examples, the second connecting plate 132 may omit the bent portion 133, and one end of the second connecting plate 132 is fixedly connected to the first connecting plate 131, and the other end of the second connecting plate 132 is fixedly connected to the side of the communication module.

It will be appreciated that the telecommunications module can also be mounted on the panel 110 of the cabinet directly using threaded fasteners without the use of the connection plate 130.

Optionally, the communication module includes an uplink/downlink leaky cable, a radio frequency switch module 140, a signal forwarding module 151, a voice forwarding module 152, and a control module 160. As shown in fig. 3, the uplink and downlink leaky cable is arranged outside the housing and connected with the connector 120, and the rf switch module 140, the signal forwarding module 151 and the control module 160 are installed in the right half housing 100. A voice forwarding module 152 is mounted within the left side housing half 100. The rf switch module 140 and the voice forwarding module 152 may be fastened to the second connecting plate 132 without the bending portion 133, and the other end of the second connecting plate 132 is fastened to the first connecting plate 131 mounted on the panel 110. The signal relay module 151 may be fastened to the bent portion 133 of the second connecting plate 132, and the other end of the second connecting plate 132 may be fastened to the first connecting plate 131 mounted on the panel 110. The control module 160 may be directly fastened to the panel 110.

It should be noted that the connector 120, the rf switch module 140, the signal forwarding module 151, the voice forwarding module 152, and the control module 160 are communicatively connected. The control module 160, the signal forwarding module 151 and the uplink and downlink leaky coaxial cables form a first communication link, and the first communication link is used for forwarding signals of the train tail device; the control module 160, the voice forwarding module 152, and the uplink and downlink leaky coaxial cables form a second communication link, and the second communication link is used for forwarding the voice information of the handheld radio station.

The signal forwarding module 151 is configured to send signals of the train tail device and the train head control device sent by the radio frequency switch module 140 to the control module 160, or send signals processed by the control module 160 to the radio frequency switch module 140.

The voice forwarding module 152 is configured to send the voice signal of the handheld radio station sent by the radio frequency switch module 140 to the control module 160, or send the voice signal processed by the control module 160 to the radio frequency switch module 140. The voice forwarding module 152 may also be communicatively coupled to the control module 160 via a communication cable such as a bus.

The control module 160 is used for processing signals of train tail devices, train head control devices, handheld radio stations, etc., and in some cases, may further have the capability of storing original information or processed information, for example, the control module 160 further includes a storage sub-module, and the storage sub-module is used for storing information of the signal forwarding module 151 and/or the voice forwarding module 152, so as to record and analyze the transmitted signals, which is beneficial to analyzing the train safety data of the train. In the present invention, the control module 160 may be a CPU, a chip, or an integrated circuit board having a certain processing capability.

The rf switch module 140 is communicatively coupled to the control module 160 for selectively enabling one of the first communication link and the second communication link. When the relay box is installed in a tunnel or a valley, the control module 160 controls the radio frequency switch module 140 to connect the first communication link if the train runs into the tunnel or the valley, so as to realize signal forwarding between the train head control device and the train tail device. For example, the train tail device can forward the wind pressure information of the train tail to the train head control device through the first communication link, so that the train head control device can know the wind pressure of the train tail and further know the running condition of the train tail. When a track, a bridge, or the like in a tunnel or a valley needs to be constructed, the control module 160 controls the radio frequency switch module 140 to connect the second communication link, so as to realize the forwarding of the voice signal between the handheld radio stations. For example, the constructor can forward a voice command for exiting the tunnel to another handheld radio station through the second communication link so as to ensure the personal safety of the constructor.

Optionally, the relay box further comprises a power supply module 172 and a filter 171. As shown in fig. 3, the power module 172 and the filter 171 may be disposed inside the left-side case half 100, and the filter 171 may be mounted on the panel 110 by the second connection plate 132 and the first connection plate 131 omitting the bent portion 133. The power module 172 is electrically connected to the control module 160 through the filter 171, and the power module 172 may be directly fastened to the panel 110.

The filter 171 is used for filtering the voltage supplied to the control module 160 by the power module 172 to smooth the voltage input of the control module 160, thereby avoiding the adverse effect of the input voltage fluctuation on the function of the control module 160.

The power module 172 may include a main power source, which is a repeater power source, and a backup power source, which is a battery, to provide power to the communication module.

Optionally, the relay box may further include a power divider 180.

As shown in fig. 3, the power divider 180 is located in the cavity of the right half-shell 100, the power divider 180 is fastened to one end of the second connecting plate 132 without the bending portion 133, and the other end of the second connecting plate 132 is fastened to the first connecting plate 131 mounted on the panel 110. The rf switch module 140 is in communication connection with the uplink and downlink leaky coaxial cables through the power divider 180, and the uplink and downlink leaky coaxial cables arranged outside the relay box are in communication connection with the rf switch module 140 and the power divider 180 through the connector 120.

When the headstock control device sends a wind pressure check signal to the train tail device, and an instruction signal is input into the forwarding module from the uplink leaky cable and the downlink leaky cable, the power divider 180 is used for combining and inputting the instruction signals currently received by the two leaky cables so that the forwarding module receives the signals, so that the train tail device receives the instruction for checking the wind pressure, and further collects the wind pressure information of the train tail; when the wind pressure information needs to be sent from the forwarding module, the power divider 180 is used for dividing the currently forwarded signal into two equal paths of signals to be output, so that the wind pressure information to be forwarded is output through an uplink and a downlink leaky cable, and the train head control device receives the wind pressure information of the train tail, thereby being beneficial to the working personnel to know the working state of the train tail.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.

Claims (10)

1. A relay box is characterized by comprising a box body;

the box body comprises two half shells which are detachably mounted together, and the two half shells define a cavity for mounting the communication module; the outer surface of the half shell is provided with a plurality of linear water guide ribs extending from the top surface to the bottom surface, and a water guide groove is formed between every two adjacent water guide ribs.

2. The repeater box according to claim 1, characterised in that the joint of the two half shells is provided with a sealing strip.

3. The relay box according to claim 1, wherein said two half shells are hingedly connected.

4. A relay box according to claim 3, wherein the end of the half shells facing away from the hinged end is provided with a handle.

5. The relay box according to any of claims 1-4, wherein said half shells comprise a panel and a side wall securely connected to said panel;

the side wall of one of the half shells is provided with a mounting hole for mounting a connector; alternatively, the first and second electrodes may be,

the side walls of the two half shells are provided with half holes, and the two half holes define mounting holes for mounting the leaky cable connectors.

6. The relay box as claimed in claim 5, wherein said side enclosure walls include a top wall, a bottom wall, a left side wall and a right side wall, said mounting holes being provided in said bottom wall.

7. The relay box according to claim 5, wherein the communication module comprises an uplink and downlink leaky cable, a radio frequency switch module, a signal forwarding module, a voice forwarding module and a control module, the uplink and downlink leaky cable is arranged outside the shell and is in communication connection with the connector, and the radio frequency switch module, the signal forwarding module, the voice forwarding module and the control module are installed in the cavity;

the connector, the radio frequency switch module, the signal forwarding module, the voice forwarding module and the control module are in communication connection;

the control module, the signal forwarding module and the uplink and downlink leaky cable form a first communication link, and the first communication link is used for forwarding signals of the train tail device; the control module, the voice forwarding module and the uplink and downlink leaky cable form a second communication link, and the second communication link is used for forwarding voice information of the handheld radio station;

the radio frequency switch module is in communication connection with the control module and is used for selectively enabling one of the first communication link and the second communication link.

8. The relay box of claim 7, further comprising a first connection plate and a second connection plate disposed inside the cavity;

the first connecting plate is fixedly connected with the panel;

one end of the second connecting plate is fixedly connected with the first connecting plate, and a bent part is formed at the other end of the second connecting plate and used for installing the signal forwarding module.

9. The relay box according to claim 8, wherein said communication module further comprises a power module and a filter, said filter is fastened to said second connection plate, said power module is electrically connected to said control module through said filter, and said power module is fastened to said panel.

10. The relay box of claim 8, wherein said communication module further comprises a power divider;

the power divider is fixedly connected with the second connecting plate, the radio frequency switch module is in communication connection with an uplink leaky cable and a downlink leaky cable through the power divider, and the uplink leaky cable and the downlink leaky cable arranged outside the relay box are in communication connection with the radio frequency switch module and the power divider through the connectors;

the power divider is used for dividing the currently forwarded signals or the voice information of the handheld radio station into two paths of equal signals to be output, or the power divider is used for combining and inputting the currently received signals of the uplink and downlink leaky coaxial cables or the voice information of the handheld radio station.

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