Railway tunnel private network antenna convenient to maintain

Abstract

The invention relates to a railway tunnel private network antenna convenient to maintain, which comprises a device main body, and the device main body comprises an outer shell and an MIMO antenna arranged in the outer shell. The outer shell comprises supporting legs used for being fixedly connected with a wall of a tunnel. And the supporting legs are provided with positioning holes. In the actual implementation process, the supporting legs and the cover body are integrally formed in a casting mode, the strength is improved, the number of overall components of a product can be extremely small, and the advantage that the risk that parts are damaged and fall off is avoided is achieved; in order to prevent a common nut from loosening or falling off due to repeated vibration of a train and wind power, a stainless steel double-locking vibration absorption type self-locking nut can be adopted for fixing, the nut has super-strong anti-loosening performance, and the anti-loosening performance is safe and reliable no matter how high the vibration intensity is.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel antennas, and in particular to a railway tunnel dedicated network antenna which is easy to maintain. Background Art

[0002] Previously, wireless network coverage in railway tunnels was generally carried out using leaky cables. Currently, the main solution for 4G networks in railway tunnels is the 4GRRU+single leaky cable transmission mode. This mode has the characteristics of fast signal attenuation, short coverage distance, single polarization (1T1R), and is not suitable for large-capacity high-frequency bands. The maximum download rate of this mode is within 45M / s. Since there can be up to 1,000 users in a train, the bandwidth limit allocated to each user is only about 40K, or even lower, which will give users a very poor Internet experience. At the same time, this solution uses a single leaky cable antenna, which is easy to damage and inconvenient to install and maintain. Summary of the invention

[0003] 1. Technical issues to be resolved In order to solve the above problems in the prior art, the present invention provides a railway tunnel dedicated network antenna which is easy to maintain.

[0004] (II) Technical solution In order to achieve the above object, the main technical solutions adopted by the present invention include: A railway tunnel private network antenna which is easy to maintain comprises a device body, wherein the device body comprises an outer shell and a MIMO antenna arranged in the outer shell; the outer shell comprises a supporting foot for fixed connection with a wall of a tunnel; the supporting foot has a positioning hole.

[0005] The outer shell also includes a cover body connected to the supporting feet and a connecting head detachably connected to the cover body; the cover body includes a circular tube body and a windward head connected to the circular tube body; the circular tube body includes a first end and a second end corresponding to the first end; the windward head is connected to the first end; and the connecting head is connected to the second end.

[0006] The windward head comprises a connecting end close to the first end and a tail end far away from the first end; the windward head gradually becomes smaller from the connecting end to the tail end; and the windward head has a windward arc surface.

[0007] The windward head includes a conical groove for positioning the MIMO antenna; the conical groove gradually becomes smaller from the connecting end to the tail end.

[0008] The MIMO antenna comprises an oscillator and a supporting baffle for supporting the oscillator; the supporting baffle comprises a first baffle; and the conical groove can limit the first baffle.

[0009] The supporting baffle also includes a second baffle; the first baffle and the second baffle are respectively connected to the two ends of the vibrator; the connecting head is connected to the second baffle through a screw rod; and the second baffle has a mounting hole for mounting the screw rod.

[0010] The vibrator comprises a central axis and a vibrating plate connected to the central axis; a plurality of vibrating plates are arranged at intervals along the length direction of the central axis.

[0011] The circular tube body comprises a connecting hole arranged on the circumferential surface of the second end portion; the connecting head comprises a matching hole matching with the connecting hole.

[0012] The outer shell is made of high-strength extrusion-molded engineering plastics.

[0013] (III) Beneficial effects The beneficial effects of the present invention are as follows: in the actual implementation process, the supporting feet and the cover body are integrally cast and pressed to increase the strength, which can achieve the goal of minimizing the overall components of the product and has the advantage of avoiding the risk of parts being damaged and falling; in order to prevent ordinary nuts from loosening or falling off due to repeated vibration of the train and wind force, stainless steel double anti-loosening vibration-absorbing self-locking nuts can be used for fixing. The nuts have super strong anti-loosening properties, and no matter how strong the vibration intensity is, the anti-loosening performance is safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the structure of a railway tunnel antenna according to an embodiment of the present invention; Figure 2 is a cross-sectional view of a railway tunnel antenna according to an embodiment of the present invention; Figure 3 A schematic diagram of the structure of a MIMO antenna according to an embodiment of the present invention; Figure 4 A schematic diagram of the structure of a header according to an embodiment of the present invention; [Description of Reference Numerals] Outer shell 1, MIMO antenna 2, supporting foot 11, positioning hole 12, cover body 13, connecting head 14, circular tube body 131, windward head 132, first end 1311, second end 1312, connecting end 1321, tail end 1322, conical groove 1323, vibrator 21, supporting baffle 22, first baffle 221, second baffle 222, central axis 211, vibrator 212, connecting hole 1313, matching hole 141, mounting hole 2221. DETAILED DESCRIPTION

[0015] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0016] Please refer to Figure 1-4As shown, a railway tunnel MIMO antenna 2 that is easy to install and maintain of the present invention includes a device body, the device body includes an outer shell 1 and a MIMOMIMO antenna 2 arranged in the outer shell 1; the outer shell 1 includes a support foot 11 for fixed connection with the wall of the tunnel; the support foot 11 has a positioning hole 12. In the actual implementation process, the support foot 11 and the cover body 13 are integrally cast and pressed to increase the strength, which can achieve a minimum of overall components of the product and has the advantage of avoiding the risk of parts being damaged and falling; in order to prevent ordinary nuts from loosening or falling off due to repeated vibration of the train and wind force, a stainless steel double anti-loosening vibration-absorbing self-locking nut can be used for fixing. The nut has super strong anti-loosening performance, and no matter how strong the vibration intensity is, the anti-loosening performance is safe and reliable.

[0017] Optionally, the outer shell 1 further includes a cover body 13 connected to the support foot 11 and a connecting head 14 detachably connected to the cover body 13; the cover body 13 includes a circular tube body 131 and a windward head 132 connected to the circular tube body 131; the circular tube body 131 includes a first end 1311 and a second end 1312 corresponding to the first end 1311; the windward head 132 is connected to the first end 1311; and the connecting head 14 is connected to the second end 1312. In the actual implementation process, the circular tube body 131 can reduce wind resistance, so that the horizontal and vertical projected wind receiving areas are minimized, which can effectively reduce wind resistance to improve structural stability.

[0018] Optionally, the windward head 132 includes a connection end 1321 close to the first end 1311 and a tail end 1322 away from the first end 1311; the windward head 132 gradually becomes smaller from the connection end 1321 to the tail end 1322; the windward head 132 has a windward arc surface. In the actual implementation process, the windward arc surface of the windward head 132 conforms to fluid mechanics, has a strong drag reduction capability, and can reduce wind resistance.

[0019] Optionally, the windward head 132 includes a conical groove 1323 for positioning the MIMOMIMO antenna 2; the conical groove 1323 gradually becomes smaller from the connecting end 1321 to the tail end 1322.

[0020] Optionally, the MIMOMIMO antenna 2 includes a vibrator 21 and a support baffle 22 for supporting the vibrator 21; the support baffle 22 includes a first baffle 221; and the tapered groove 1323 can limit the first baffle 221. In the actual implementation process, the first baffle 221 is limited by the tapered groove 1323 to ensure that the vibrator 212 is stably fixed inside the cover 13.

[0021] Optionally, the support baffle 22 further includes a second baffle 222; the first baffle 221 and the second baffle 222 are respectively connected to the two ends of the vibrator 21; the connecting head 14 is connected to the second baffle 222 through a screw; the second baffle 222 has a mounting hole 2221 for mounting the screw. In the actual implementation process, the connecting head 14 is connected to the second baffle 222 through the screw, the connection is firm and reliable, and it is easy to disassemble and assemble, which has the advantages of simple and convenient construction, installation and maintenance.

[0022] Optionally, the vibrator 21 includes a central axis 211 and a vibrator 212 connected to the central axis 211; a plurality of vibrators 212 are arranged at intervals along the length direction of the central axis 211. In the actual implementation process, the vibrators 212 are formed by stamping sheet metal, and the vibrators 21 of the high-gain MIMO antenna 2 are formed in series, which greatly improves the coverage strength, capacity and quality of the 900M signal in the tunnel, and improves the 900M communication quality and effect in the railway tunnel.

[0023] Optionally, the circular tube body 131 includes a connecting hole 1313 disposed on the circumferential surface of the second end 1312; the connecting head 14 has a matching hole 141 matching with the connecting hole 1313. In the actual implementation process, the screw is locked together through the connecting hole 1313 and the matching hole 141.

[0024] Optionally, the outer shell 1 is made of high-strength extrusion die-cast engineering plastic. In actual implementation, high-strength extrusion die-cast engineering plastic has the advantages of high mechanical strength and strong impact resistance, which can balance the force of train wind resistance on the MIMO antenna 2 and ensure the stability of communication.

[0025] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A railway tunnel dedicated network antenna that is easy to maintain, comprising a device body, characterized in that: The device body comprises an outer shell and a MIMO antenna arranged in the outer shell; the outer shell comprises a supporting foot for fixedly connecting with a wall of a tunnel; the supporting foot has a positioning hole.

2. The railway tunnel dedicated network antenna that is easy to maintain as claimed in claim 1, characterized in that: The outer shell also includes a cover body connected to the supporting feet and a connecting head detachably connected to the cover body; the cover body includes a circular tube body and a windward head connected to the circular tube body; the circular tube body includes a first end and a second end corresponding to the first end; the windward head is connected to the first end; and the connecting head is connected to the second end.

3. The railway tunnel dedicated network antenna that is easy to maintain as claimed in claim 2, characterized in that: The windward head comprises a connecting end close to the first end and a tail end far away from the first end; the windward head gradually becomes smaller from the connecting end to the tail end; and the windward head has a windward arc surface.

4. The railway tunnel dedicated network antenna that is easy to maintain as claimed in claim 3, characterized in that: The windward head includes a conical groove for positioning the MIMO antenna; the conical groove gradually becomes smaller from the connecting end to the tail end.

5. The railway tunnel dedicated network antenna that is easy to maintain as claimed in claim 4, characterized in that: The MIMO antenna comprises an oscillator and a supporting baffle for supporting the oscillator; the supporting baffle comprises a first baffle; and the conical groove can limit the first baffle.

6. The railway tunnel dedicated network antenna that is easy to maintain as claimed in claim 5, characterized in that: The supporting baffle also includes a second baffle; the first baffle and the second baffle are respectively connected to the two ends of the vibrator; the connecting head is connected to the second baffle through a screw rod; and the second baffle has a mounting hole for mounting the screw rod.

7. The railway tunnel dedicated network antenna that is easy to maintain as claimed in claim 6, characterized in that: The vibrator comprises a central axis and a vibrating plate connected to the central axis; a plurality of vibrating plates are arranged at intervals along the length direction of the central axis.

8. The railway tunnel dedicated network antenna that is easy to maintain as claimed in claim 7, characterized in that: The circular tube body comprises a connecting hole arranged on the circumferential surface of the second end portion; the connecting head comprises a matching hole matching with the connecting hole.

9. The railway tunnel dedicated network antenna that is easy to maintain as claimed in claim 8, characterized in that: The outer shell is made of high-strength extrusion-molded engineering plastics.

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