CN113747262A - Be used for hydrology monitoring wireless communication gateway - Google Patents

Be used for hydrology monitoring wireless communication gateway Download PDF

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Publication number
CN113747262A
CN113747262A CN202111299008.9A CN202111299008A CN113747262A CN 113747262 A CN113747262 A CN 113747262A CN 202111299008 A CN202111299008 A CN 202111299008A CN 113747262 A CN113747262 A CN 113747262A
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CN
China
Prior art keywords
plate
wireless communication
fixed
communication gateway
fixing
Prior art date
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Granted
Application number
CN202111299008.9A
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Chinese (zh)
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CN113747262B (en
Inventor
武治国
潘凌
陈银
徐锦锋
张振扬
张春萍
阮利民
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan Newfiber Optoelectronics Co Ltd
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Wuhan Newfiber Optoelectronics Co Ltd
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Publication date
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Priority to CN202111299008.9A priority Critical patent/CN113747262B/en
Publication of CN113747262A publication Critical patent/CN113747262A/en
Application granted granted Critical
Publication of CN113747262B publication Critical patent/CN113747262B/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/66Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q1/00Details of selecting apparatus or arrangements
    • H04Q1/02Constructional details
    • H04Q1/035Cooling of active equipments, e.g. air ducts
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/16Gateway arrangements
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00Casings, cabinets or drawers for electric apparatus
    • H05K5/02Details
    • H05K5/0213Venting apertures; Constructional details thereof

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

The invention provides a wireless communication gateway for hydrologic monitoring, which comprises a gateway body, wherein the gateway body comprises a box body, one side of the box body is provided with heat dissipation ports, fixing holes are formed among the heat dissipation ports, the top of the box body is welded with a bearing plate, one side of the bearing plate is provided with an opening, a fixing plate is arranged in the opening, one end of the fixing plate is welded with a supporting plate, the supporting plate is provided with a threaded hole, one side of the box body is welded with a limiting plate, the limiting plate is matched with the supporting plate and the fixing plate, and one end of the fixing plate is provided with a connecting plate. This be used for hydrology monitoring wireless communication gateway fly leaf removes along with the removal that the fixed plate drove the fly leaf, rubs on the wire barrel through fixed column and sponge board on the inner wall during removal, clears up the wire joint of wire barrel fluting position department, avoids piling up the dust for a long time and causes the radiating effect poor, effectively guarantees the normal use of equipment.

Description

Be used for hydrology monitoring wireless communication gateway
Technical Field
The invention relates to the field of hydrologic monitoring gateway equipment, in particular to a wireless communication gateway for hydrologic monitoring.
Background
The hydrological monitoring system is suitable for hydrological departments to monitor hydrological parameters of rivers, lakes, reservoirs, channels, underground water and the like in real time, and the monitoring contents comprise water level, flow velocity, rainfall (snow), evaporation, silt, ice, soil moisture, water quality and the like. Hydrology monitoring system adopts wireless communication mode real-time transfer monitoring data, can improve hydrology department's work efficiency greatly, need transmit the use through wireless communication gateway to data when hydrology monitoring, current gateway is when using, fixed mode is single, fixing bolt's outside spills, it can dismantle to spill back irrelevant personnel, be unfavorable for its safety, current gateway can produce a large amount of heats when using in addition, the discharge that the heat can not be timely, cause the damage to internal plant easily, the casing can't be opened fast when current gateway maintains, cause the resistance for detecting and maintaining, use inconveniently.
Disclosure of Invention
The invention aims to provide a wireless communication gateway for hydrologic monitoring, aiming at solving the problems in the prior art, and the wireless communication gateway is novel in structure, when in use, an electric push rod pushes a connecting plate to move, a movable plate on a fixed plate moves in reverse direction when the connecting plate moves, the movable plate is limited after the movable plate moves in reverse direction, and the fixed plate and the movable plate can be quickly opened by matching the electric push rod and the fixed plate in the later period, so that the wireless communication gateway is convenient to maintain on one hand, and is convenient to dissipate heat on the other hand.
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a be used for hydrology monitoring wireless communication gateway, includes the gateway body, the gateway body includes the box, open one side of box has the thermovent, the top welding of box has the bearing plate, open one side of bearing plate has the opening, open-ended internally mounted has the fixed plate, the one end welding of fixed plate has the backup pad, it has the screw hole to open in the backup pad, the welding of one side of box has the limiting plate, the limiting plate cooperatees with backup pad and fixed plate, the connecting plate is installed to the one end of fixed plate, install the torsion spring axle between connecting plate and the fixed plate, it has the fixed slot to open on the bearing plate, the internally mounted of fixed slot has electric putter, electric putter's one end is fixed with the lug, the bottom at the connecting plate is installed to the lug.
In a preferred embodiment of the present invention, an interface is opened at one end of the box, a plug is opened at one side of the interface, and an antenna rod is installed at one side of the plug.
In a preferred embodiment of the present invention, a wire connecting tube is installed inside the box body, a slot is opened on the wire connecting tube, and a fastening bolt is installed on the wire connecting tube and is matched with the slot.
In a preferred embodiment of the present invention, a partition plate is fixed to the inside of the box body, the wire barrel is fixed to the partition plate, and the wire barrel has a double-layer structure.
As a preferred embodiment of the present invention, a movable plate is installed on an inner wall of the fixed plate, a fixed column is fixed on an inner wall of the movable plate, and a sponge plate is installed on a top of the fixed column.
As a preferred embodiment of the present invention, a sliding groove is formed on an inner wall of the fixed plate, a connection spring is installed inside the sliding groove, and a sliding block is fixed on the movable plate and fixed at one end of the connection spring.
As a preferred embodiment of the present invention, the inner wall of the sliding groove is provided with a limiting groove, two sides of the sliding block are fixed with limiting blocks, and the limiting blocks are installed inside the limiting groove.
As a preferred embodiment of the present invention, the torsion spring shaft includes an outer tube and an inner tube, a torsion spring is installed between the outer tube and the inner tube, and both ends of the torsion spring are respectively fixed to the outer tube and the inner tube.
In a preferred embodiment of the present invention, a fixing hole is installed between the heat dissipation ports, and a fixing bolt is installed inside the fixing hole.
In a preferred embodiment of the present invention, an indicator light is installed on one side of the antenna rod, a threaded post is installed on one end of the antenna rod, a threaded seat is opened on the box body, and the threaded post is installed on the threaded seat.
The invention has the beneficial effects that: the invention discloses a wireless communication gateway for hydrologic monitoring, which comprises a box body; a heat dissipation port; a fixing hole; a limiting plate; a fixing plate; a support plate; a threaded hole; a connecting plate; a torsion spring shaft; an opening; a bearing plate; fixing grooves; an interface; a plug; an antenna mast; an indicator light; a wire connecting pipe; grooving; fastening a bolt; an electric push rod; a bump; a movable plate; fixing a column; a sponge plate; a chute; a connecting spring; a slide block.
1. When this be used for hydrology monitoring wireless communication gateway to use, electric putter promotes the connecting plate and removes, and fly leaf antiport on the fixed plate when the connecting plate removes carries on spacingly through the fly leaf after the antiport, and electric putter cooperatees with the fixed plate in later stage and can make fixed plate and fly leaf open fast, and the maintenance of being convenient for on the one hand is convenient for on the other hand the heat dissipation use of being convenient for on the one hand.
2. This be used for hydrology monitoring wireless communication gateway fly leaf removes along with the removal that the fixed plate drove the fly leaf, rubs on the wire barrel through fixed column and sponge board on the inner wall during removal, clears up the wire joint of wire barrel fluting position department, avoids piling up the dust for a long time and causes the radiating effect poor, effectively guarantees the normal use of equipment.
3. This be used for hydrology monitoring wireless communication gateway to install the inner wall that the bolt passes through the box, makes the position that has the cross grain place in the inside of box, avoids irrelevant personnel to dismantle the loss that causes this device, in addition, opens the back at fixed plate and fly leaf, upwards lifts up through torsion spring, lifts up the back and is parallel with the antenna mast, protects the antenna mast through both sides, avoids the antenna mast to cause the damage because of the collision.
Drawings
Fig. 1 is a schematic structural diagram of a wireless communication gateway for hydrologic monitoring according to the present invention;
FIG. 2 is a schematic structural diagram of a wire connecting tube for a hydrologic monitoring wireless communication gateway according to the present invention;
fig. 3 is a schematic structural diagram of a movable plate of a wireless communication gateway for hydrologic monitoring according to the present invention;
FIG. 4 is a schematic cross-sectional view of a wireless communication gateway box for hydrologic monitoring according to the present invention;
fig. 5 is a schematic structural diagram of a fixed plate of a hydrologic monitoring wireless communication gateway after being turned over according to the present invention;
in the figure: 1. a box body; 2. a heat dissipation port; 3. a fixing hole; 4. a limiting plate; 5. a fixing plate; 6. a support plate; 7. a threaded hole; 8. a connecting plate; 9. a torsion spring shaft; 10. an opening; 11. a bearing plate; 12. fixing grooves; 13. an interface; 14. a plug; 15. an antenna mast; 16. an indicator light; 17. a wire connecting pipe; 18. grooving; 19. fastening a bolt; 20. an electric push rod; 21. a bump; 22. a movable plate; 23. fixing a column; 24. a sponge plate; 25. a chute; 26. a connecting spring; 27. a slide block.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Referring to fig. 1 to 5, the present invention provides a technical solution: a wireless communication gateway for hydrologic monitoring comprises a gateway body, wherein the gateway body comprises a box body 1, one side of the box body 1 is provided with a heat dissipation port 2, the top of the box body 1 is welded with a bearing plate 11, an opening 10 is formed in one side of the bearing plate 11, a fixing plate 5 is arranged in the opening 10, a supporting plate 6 is welded at one end of the fixing plate 5, a threaded hole 7 is formed on the supporting plate 6, a limiting plate 4 is welded at one side of the box body 1, the limiting plate 4 is matched with a supporting plate 6 and a fixing plate 5, one end of the fixed plate 5 is provided with a connecting plate 8, a torsion spring shaft 9 is arranged between the connecting plate 8 and the fixed plate 5, the bearing plate 11 is provided with a fixing groove 12, an electric push rod 20 is arranged in the fixing groove 12, a lug 21 is fixed at one end of the electric push rod 20, and the lug 21 is installed at the bottom of the connecting plate 8.
In a preferred embodiment of the present invention, an interface 13 is opened at one end of the box 1, a plug 14 is opened at one side of the interface 13, and an antenna rod 15 is installed at one side of the plug 14.
In a preferred embodiment of the present invention, a wire connecting tube 17 is installed inside the box body 1, a slot 18 is opened on the wire connecting tube 17, a fastening bolt 19 is installed on the wire connecting tube 17, and the fastening bolt 19 is matched with the slot 18.
In a preferred embodiment of the present invention, a partition plate is fixed inside the case 1, the wire barrel 17 is fixed to the partition plate, and the wire barrel 17 has a double-layer structure.
In a preferred embodiment of the present invention, a movable plate 22 is mounted on an inner wall of the fixed plate 5, a fixed column 23 is fixed on an inner wall of the movable plate 22, and a sponge plate 24 is mounted on a top of the fixed column 23.
In a preferred embodiment of the present invention, a sliding groove 25 is formed on an inner wall of the fixed plate 5, a connection spring 26 is installed inside the sliding groove 25, a slider 27 is fixed to the movable plate 22, and the slider 27 is fixed to one end of the connection spring 26.
As a preferred embodiment of the present invention, the inner wall of the sliding groove 25 is provided with a limiting groove, and two sides of the sliding block 27 are fixed with limiting blocks, which are installed inside the limiting groove.
As a preferred embodiment of the present invention, the torsion spring shaft 9 includes an outer tube and an inner tube, a torsion spring is installed between the outer tube and the inner tube, and both ends of the torsion spring are respectively fixed on the outer tube and the inner tube.
In a preferred embodiment of the present invention, fixing holes 3 are installed between the heat dissipation ports 2, and fixing bolts are installed inside the fixing holes 3.
In a preferred embodiment of the present invention, an indicator light 16 is mounted on one side of the antenna rod 15, a threaded post is mounted on one end of the antenna rod 15, a threaded seat is opened on the box body 1, and the threaded post is mounted on the threaded seat.
When the device is used, firstly, the electric push rod 20 is contracted, when the electric push rod 20 is contracted, one end of the movable plate 22 is separated from one end of the connecting plate 8, one end of the movable plate 22 is separated from one end of the limiting plate 4 through the tension generated by the connecting spring 26, after separation, the fixed plate 5 loses the fixing force, the fixed plate 5 is turned over through the torsion spring shaft 9, the fixed plate 5 is contacted with the connecting plate 8 after turning over, the fixed plate 5 and the movable plate 22 are arranged in parallel with the antenna rod 14, after the fixed plates 5 on two sides are opened simultaneously, on one hand, the quick heat dissipation in the box body 1 is facilitated, in addition, the opening space is convenient for maintenance and use, after the fixed plate 5 is opened, the antenna rod 15 can be protected through two sides, avoid antenna mast 15 because of the damage that the collision caused when using, in addition, when needs fixed plate 5 to install on box 1, pull fixed plate 5, fly leaf 22 from the inside of newly homing to opening 10, it cooperatees with the one end of connecting plate 8 once more and carries on spacingly to start electric putter 20 messenger fly leaf 22, spacing back, fly leaf 22's one end cooperatees with limiting plate 4 once more and carries on spacing fixedly, be convenient for sealed protection and use, in addition, fixed plate 5 drives fly leaf 22's removal and removes, rub on connecting tube 17 through fixed column 23 and sponge board 24 on the inner wall during the removal, electric wire connector to connecting tube 17 fluting 18 position department is cleared up, avoid piling up the dust for a long time and cause the radiating effect poor, effectively guarantee the normal use of equipment.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (10)

1. The utility model provides a be used for hydrology monitoring wireless communication gateway, includes the gateway body, its characterized in that: the gateway body comprises a box body (1), a heat dissipation opening (2) is formed in one side of the box body (1), a bearing plate (11) is welded to the top of the box body (1), an opening (10) is formed in one side of the bearing plate (11), a fixing plate (5) is installed inside the opening (10), a supporting plate (6) is welded to one end of the fixing plate (5), a threaded hole (7) is formed in the supporting plate (6), a limiting plate (4) is welded to one side of the box body (1), the limiting plate (4) is matched with the supporting plate (6) and the fixing plate (5), a connecting plate (8) is installed at one end of the fixing plate (5), a torsion spring shaft (9) is installed between the connecting plate (8) and the fixing plate (5), a fixing groove (12) is formed in the bearing plate (11), and an electric push rod (20) is installed inside the fixing groove (12), a bump (21) is fixed at one end of the electric push rod (20), and the bump (21) is installed at the bottom of the connecting plate (8).
2. A wireless communication gateway for hydrologic monitoring according to claim 1, characterized in that: an interface (13) is arranged at one end of the box body (1), a plug (14) is arranged on one side of the interface (13), and an antenna rod (15) is arranged on one side of the plug (14).
3. A wireless communication gateway for hydrologic monitoring according to claim 1, characterized in that: the internally mounted of box (1) has wire barrel (17), it has fluting (18) to open on wire barrel (17), install fastening bolt (19) on wire barrel (17), fastening bolt (19) cooperate with fluting (18).
4. A wireless communication gateway for hydrologic monitoring according to claim 3, characterized in that: the inside of box (1) is fixed with the division board, wire connection pipe (17) are fixed on the division board, wire connection pipe (17) are bilayer structure.
5. A wireless communication gateway for hydrologic monitoring according to claim 1, characterized in that: install fly leaf (22) on the inner wall of fixed plate (5), be fixed with fixed column (23) on the inner wall of fly leaf (22), sponge board (24) are installed at the top of fixed column (23).
6. A wireless communication gateway for hydrologic monitoring according to claim 5, characterized in that: open on the inner wall of fixed plate (5) has spout (25), the internally mounted of spout (25) has connecting spring (26), be fixed with slider (27) on fly leaf (22), the one end at connecting spring (26) is fixed in slider (27).
7. A wireless communication gateway for hydrologic monitoring according to claim 6, characterized in that: the inner wall of the sliding groove (25) is provided with a limiting groove, two sides of the sliding block (27) are fixed with limiting blocks, and the limiting blocks are arranged in the limiting groove.
8. A wireless communication gateway for hydrologic monitoring according to claim 1, characterized in that: the torsion spring shaft (9) comprises an outer pipe and an inner pipe, a torsion spring is arranged between the outer pipe and the inner pipe, and two ends of the torsion spring are respectively fixed on the outer pipe and the inner pipe.
9. A wireless communication gateway for hydrologic monitoring according to claim 1, characterized in that: fixing holes (3) are installed between the radiating holes (2), and fixing bolts are installed inside the fixing holes (3).
10. A wireless communication gateway for hydrologic monitoring according to claim 2, characterized in that: indicator lamp (16) are installed to one side of antenna mast (15), the screw thread post is installed to the one end of antenna mast (15), it has the screw thread seat to open on box (1), the screw thread post is installed on the screw thread seat.
CN202111299008.9A 2021-11-04 2021-11-04 Be used for hydrology monitoring wireless communication gateway Active CN113747262B (en)

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CN202111299008.9A CN113747262B (en) 2021-11-04 2021-11-04 Be used for hydrology monitoring wireless communication gateway

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CN202111299008.9A CN113747262B (en) 2021-11-04 2021-11-04 Be used for hydrology monitoring wireless communication gateway

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CN113747262B CN113747262B (en) 2022-02-08

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114363724A (en) * 2022-01-04 2022-04-15 武汉新烽光电股份有限公司 LoRa communication gateway with safeguard function

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120288249A1 (en) * 2011-05-13 2012-11-15 Gil Ruiz Pivotable cover for sliding tray and sliding tray including the cover
US20140238945A1 (en) * 2013-02-26 2014-08-28 Realm Communications Group, Inc. Distribution panel with dual movable trays
CN209017067U (en) * 2018-12-20 2019-06-21 上海银澜智能化工程有限公司 A kind of radio communications gateway
CN110233781A (en) * 2019-05-22 2019-09-13 安徽三品技术服务有限公司 The interconnected control systems and its control method of smart home device
CN110536181A (en) * 2019-08-19 2019-12-03 兴发铝业(成都)有限公司 A kind of industry things-internet gateway equipment
EP3722920A1 (en) * 2019-04-09 2020-10-14 Quanta Computer Inc. Module assembly and combination with chassis and rail assembly
CN212851382U (en) * 2020-09-18 2021-03-30 厦门直播星股份有限公司 Wireless signal server for marine vessel
CN113038295A (en) * 2021-02-27 2021-06-25 费籁电气(上海)有限公司 Router convenient to overhaul and maintain

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120288249A1 (en) * 2011-05-13 2012-11-15 Gil Ruiz Pivotable cover for sliding tray and sliding tray including the cover
US20140238945A1 (en) * 2013-02-26 2014-08-28 Realm Communications Group, Inc. Distribution panel with dual movable trays
CN209017067U (en) * 2018-12-20 2019-06-21 上海银澜智能化工程有限公司 A kind of radio communications gateway
EP3722920A1 (en) * 2019-04-09 2020-10-14 Quanta Computer Inc. Module assembly and combination with chassis and rail assembly
CN110233781A (en) * 2019-05-22 2019-09-13 安徽三品技术服务有限公司 The interconnected control systems and its control method of smart home device
CN110536181A (en) * 2019-08-19 2019-12-03 兴发铝业(成都)有限公司 A kind of industry things-internet gateway equipment
CN212851382U (en) * 2020-09-18 2021-03-30 厦门直播星股份有限公司 Wireless signal server for marine vessel
CN113038295A (en) * 2021-02-27 2021-06-25 费籁电气(上海)有限公司 Router convenient to overhaul and maintain

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114363724A (en) * 2022-01-04 2022-04-15 武汉新烽光电股份有限公司 LoRa communication gateway with safeguard function
CN114363724B (en) * 2022-01-04 2023-02-17 武汉新烽光电股份有限公司 LoRa communication gateway with safeguard function

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