CN213366872U

CN213366872U - Lightning protection device for RS485 serial communication interface

Info

Publication number: CN213366872U
Application number: CN202022317884.7U
Authority: CN
Inventors: 李惠军; 李泽苒
Original assignee: Zeda Technology (shenzhen) Inc
Current assignee: Zeda Technology (shenzhen) Inc
Priority date: 2020-10-16
Filing date: 2020-10-16
Publication date: 2021-06-04
Anticipated expiration: 2030-10-16

Abstract

The utility model discloses a lightning protection device of RS485 serial communication interface, the both sides position department of lightning protection device shell one end all rotates and is connected with the positioning bolt, positioning bolt outer end threaded connection has a screw thread section of thick bamboo, screw thread section of thick bamboo outer end sliding connection has the guard plate, the embedded groove has been seted up to the guard plate inner wall, lightning protection device shell one end is located the guard plate inside and has seted up the communication interface, screw thread section of thick bamboo one end fixedly connected with connecting plate, the inboard symmetry fixedly connected with extension spring of connecting plate, the utility model discloses a structure is provided with guard plate, embedded groove, screw thread section of thick bamboo, extension spring and cushion, through the guard plate, is convenient for protect the communication interface, avoids the communication interface to receive the striking and receive the damage to through the insulating rubber in the embedded groove, be convenient for carry out insulation treatment around the, be convenient for extrude fixedly to the guard plate for the guard plate is fixed in the communication interface outside.

Description

Lightning protection device for RS485 serial communication interface

Technical Field

The utility model relates to a RS485 serial communication interface technical field specifically is RS485 serial communication interface's lightning protection device.

Background

The lightning arrester, also called lightning arrester, surge protector and overvoltage protector, mainly include power lightning arrester and signal lightning arrester, the lightning arrester is to prevent the damage of the apparatus struck by lightning through modern electricity and other technologies, the lightning energy absorption in the lightning arrester, mainly zinc oxide varistor and gas discharge tube;

as disclosed in the prior art, a lightning protection circuit for RS485 interface of electronic device has application number (20172024410.7), which is: the common-mode voltage and the differential-mode voltage are discharged through the first-stage lightning protection circuit, and the output residual voltage of the first-stage lightning protection circuit is reduced to the standard working voltage of the RS485 interface through the second-stage lightning protection circuit, so that the lightning protection circuit is realized.

However, the patent lacks a component for protecting the communication interface from collision, so that the communication interface is easy to be damaged when the communication interface is impacted by external impact, and the normal use of the whole RS485 is affected, therefore, for the situations, in order to avoid the technical problems, a lightning protection device of the RS485 serial communication interface is necessarily provided to overcome the defects in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model provides a lightning protection device of RS485 serial communication interface can effectively solve the subassembly that the protection was hit to the communication interface that lacks that proposes among the above-mentioned background art, leads to when the outside striking that receives, and the communication interface easily appears damaging to the normal use problem of whole RS485 of this influence.

In order to achieve the above object, the utility model provides a following technical scheme: the lightning protection device for the RS485 serial communication interface comprises a lightning protection device shell, wherein positioning bolts are rotatably connected to positions on two side sides of one end of the lightning protection device shell, the outer end of each positioning bolt is in threaded connection with a threaded cylinder, the outer end of each threaded cylinder is in sliding connection with a protection plate, an embedded groove is formed in the inner wall of each protection plate, one end of the lightning protection device shell is located inside each protection plate and is provided with a communication interface, one end of each threaded cylinder is fixedly connected with a connecting plate, stretching springs are symmetrically and fixedly connected to the inner side of each connecting plate, and one end of each stretching;

lightning protection device shell top symmetry fixedly connected with bracing piece, the equal hollow section of thick bamboo of fixedly connected with in lightning protection device shell both sides side position department, hollow section of thick bamboo internally mounted has buffer spring, buffer spring one end fixedly connected with movable sucking disc, movable sucking disc outer end fixedly connected with protecting sheathing, protecting sheathing top joint has the apron, the apron both ends are rotated and are connected with fastening bolt, the inside insulating rubber that has pasted of embedded groove.

Preferably, slide holes are symmetrically formed in one end of the protection plate, and the threaded cylinders are connected inside the slide holes in a sliding mode.

Preferably, an installation groove is formed in one end of the cushion block, and an extension spring is embedded in the installation groove.

Preferably, the top end of the supporting rod is tightly attached to the bottom end of the cover plate, and one end of the movable sucker is tightly attached to the inner wall of the protective shell.

Preferably, apron top avris position department fixedly connected with installation piece, installation piece one end has been seted up and has been accomodate the groove, accomodate inslot portion sliding connection and have the backup pad, the limiting plate has been placed on the backup pad top, limiting plate bottom equidistance fixedly connected with connecting rod, the rubber ball is installed in the embedding of connecting rod bottom.

Preferably, the outer end of the rubber ball is embedded into the interface at the outer end of the lightning protection device shell, and a gap is reserved between the bottom end of the limiting plate and the top end of the supporting plate.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of being scientific and reasonable in structure, convenience safe in utilization:

1. be provided with guard plate, embedded groove, a screw thread section of thick bamboo, extension spring and cushion, through the guard plate, be convenient for protect communication interface, avoid communication interface to receive the striking and receive the damage to through the inside insulating rubber of embedded groove, be convenient for carry out insulation treatment around the communication interface, simultaneously through extension spring and cushion cooperation, be convenient for extrude fixedly to the guard plate, make the guard plate fix in the communication interface outside.

2. Be provided with the bracing piece, buffer spring, activity sucking disc and fastening bolt, through buffer spring and the cooperation of activity sucking disc, when making protective housing receive the impact, the activity sucking disc spreads into the impact force into inside buffer spring into, reduce the impact that the lightning protection device shell received with this, and through fastening bolt, the protective housing and the apron of being convenient for carry out the joint, so as to protect the lightning protection device shell, simultaneously through the bracing piece, be convenient for consolidate the apron and support, make the more stable joint of apron on the protective housing top.

3. Be provided with and accomodate groove, backup pad, limiting plate and rubber ball, when not using the lightning protection device shell, through accomodating the groove, be convenient for take the backup pad out from accomodating the inslot portion to through inserting the limiting plate backup pad inner wall, thereby the rubber ball of being convenient for seals the interface inside of lightning protection device shell outer end, avoids the dust to pile up inside the interface, causes contact failure's phenomenon.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a cross-sectional view of the threaded cartridge of the present invention;

FIG. 3 is a schematic view of the installation of the movable suction cup of the present invention;

fig. 4 is a schematic view of the installation of the support plate of the present invention;

reference numbers in the figures: 1. a lightning protection device housing; 2. positioning the bolt; 3. a protection plate; 4. a groove is embedded; 5. a threaded barrel; 6. a connecting plate; 7. an extension spring; 8. cushion blocks; 9. a communication interface; 10. a support bar; 11. a hollow cylinder; 12. a buffer spring; 13. a movable sucker; 14. a protective housing; 15. a cover plate; 16. fastening a bolt; 17. mounting blocks; 18. a receiving groove; 19. a support plate; 20. a limiting plate; 21. a connecting rod; 22. a rubber ball.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in figures 1-4, the utility model provides a technical scheme, a lightning protection device of RS485 serial communication interface, which comprises a lightning protection device shell 1, wherein both sides of one end of the lightning protection device shell 1 are rotatably connected with a positioning bolt 2, the outer end of the positioning bolt 2 is connected with a screw cylinder 5 in a threaded manner, the outer end of the screw cylinder 5 is slidably connected with a protection plate 3, so as to facilitate the rotation of the screw cylinder 5, one end of the protection plate 3 is symmetrically provided with a slide hole, the screw cylinder 5 is slidably connected in the slide hole, the inner wall of the protection plate 3 is provided with an embedded groove 4, one end of the embedded groove 4 is pasted with an insulating rubber lightning protection device shell 1 and is positioned in the protection plate 3 and is provided with a communication interface 9, one end of the screw cylinder 5 is fixedly connected with a connecting plate 6, the inner side of the connecting plate, one end of the cushion block 8 is provided with a mounting groove, and an extension spring 7 is embedded in the mounting groove;

1 top symmetry fixedly connected with bracing piece 10 of lightning protection device shell, 1 both sides side position department of lightning protection device shell equal fixedly connected with hollow section of thick bamboo 11, hollow section of thick bamboo 11 internally mounted has buffer spring 12, buffer spring 12 one end fixedly connected with

movable suction cup

13, 13 outer end fixedly connected with protecting sheathing 14 of movable suction cup, be convenient for protect lightning protection device shell 1, bracing piece 10 top and the 15 bottom of apron closely laminate, 13 one end of movable suction cup and the 14 inner walls of protecting sheathing closely laminate, 14 top joints of protecting sheathing have

apron

15, 15 both ends of apron are rotated and are connected with fastening bolt 16.

15 top avris position department fixedly connected with installation piece 17 of apron, installation piece 17 one end has been seted up and has been accomodate groove 18, accomodate the inside sliding connection in groove 18 and have backup pad 19, limiting plate 20 has been placed on backup pad 19 top, limiting plate 20 bottom equidistance fixedly connected with connecting rod 21, be convenient for support limiting plate 20, rubber ball 22 is installed in the embedding of connecting rod 21 bottom, be convenient for seal the interface of 1 outer end of lightning protection device shell, the embedding of rubber ball 22 outer end is inside the interface of 1 outer end of lightning protection device shell, the space is left on limiting plate 20 bottom and the 19 tops of backup pad.

The utility model discloses a theory of operation and use flow: firstly, the threaded cylinder 5 is rotated to enable the threaded cylinder 5 to move at the outer end of the positioning bolt 2, so that the threaded cylinder 5 drives the cushion block 8 to extrude the outer surface of the protection plate 3, due to the action of the extension spring 7, the extension spring 7 drives the cushion block 8 to extrude and fix the protection plate 3, so that the protection plate 3 is conveniently sleeved outside the communication interface 9, the communication interface 9 is conveniently protected through the protection plate 3, the communication interface 9 is prevented from being damaged by impact, and meanwhile, due to the insulating rubber in the embedded groove 4, the periphery of the communication interface 9 is conveniently subjected to insulating treatment;

secondly, the inner wall of the protective shell 14 is tightly attached to the top end of the support rod 10, then the cover plate 15 is clamped with the top end of the protective shell 14, and the fastening bolt 16 is rotated, so that the cover plate 15 and the protective shell 14 are conveniently fixed, the lightning protection device shell 1 is conveniently protected, when the lightning protection device shell 1 is impacted, the protective shell 14 transmits impact force into the movable suction cup 13, and the impact force is transmitted into the buffer spring 12 by the movable suction cup 13, so that the impact on the lightning protection device shell 1 is reduced;

then, when the lightning protection device shell 1 is not used, the supporting plate 19 is pulled, so that the supporting plate 19 is pulled out from the inside of the accommodating groove 18, then, the limiting plate 20 is taken out, so that the limiting plate 20 drives the connecting rod 21 to be inserted into the inside of the supporting plate 19 and extend out from the bottom end of the supporting plate 19, so that the connecting rod 21 drives the rubber ball 22 to be embedded into the interface at the outer end of the lightning protection device shell 1, so that the sealing is convenient, the phenomenon that dust is accumulated inside the interface to cause poor contact is avoided, and the circuit lightning protection mode of the communication interface 9 is consistent with the patent number (20172024410.7), so that the description is not given.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

The lightning protection device of the RS485 serial communication interface comprises a lightning protection device shell (1), and is characterized in that: the lightning protection device comprises a lightning protection device shell (1), wherein positioning bolts (2) are rotatably connected to two side positions of one end of the lightning protection device shell (1), the outer end of each positioning bolt (2) is in threaded connection with a threaded cylinder (5), the outer end of each threaded cylinder (5) is in sliding connection with a protection plate (3), an embedded groove (4) is formed in the inner wall of each protection plate (3), a communication interface (9) is formed in one end of the lightning protection device shell (1) which is located inside each protection plate (3), a connecting plate (6) is fixedly connected to one end of each threaded cylinder (5), extension springs (7) are symmetrically and fixedly connected to the inner side of each connecting plate (6), and;

lightning protection device shell (1) top symmetry fixedly connected with bracing piece (10), the equal fixedly connected with hollow section of thick bamboo (11) of lightning protection device shell (1) both sides position department, hollow section of thick bamboo (11) internally mounted has buffer spring (12), buffer spring (12) one end fixedly connected with movable suction cup (13), movable suction cup (13) outer end fixedly connected with protecting sheathing (14), protecting sheathing (14) top joint has apron (15), apron (15) both ends are rotated and are connected with fastening bolt (16).
2. The lightning protection device of the RS485 serial communication interface of claim 1, wherein: the novel thread protection device is characterized in that sliding holes are symmetrically formed in one end of the protection plate (3), the thread cylinders (5) are connected in the sliding holes in a sliding mode, and insulating rubber is pasted inside the embedded grooves (4).
3. The lightning protection device of the RS485 serial communication interface of claim 1, wherein: an installation groove is formed in one end of the cushion block (8), and an extension spring (7) is embedded in the installation groove.
4. The lightning protection device of the RS485 serial communication interface of claim 1, wherein: the top end of the supporting rod (10) is tightly attached to the bottom end of the cover plate (15), and one end of the movable sucker (13) is tightly attached to the inner wall of the protective shell (14).
5. The lightning protection device of the RS485 serial communication interface of claim 1, wherein: apron (15) top avris position department fixedly connected with installation piece (17), installation piece (17) one end has been seted up and has been accomodate groove (18), accomodate inside sliding connection in groove (18) backup pad (19), limiting plate (20) have been placed on backup pad (19) top, limiting plate (20) bottom equidistance fixedly connected with connecting rod (21), rubber ball (22) are installed in connecting rod (21) bottom embedding.
6. The lightning protection device of the RS485 serial communication interface of claim 5, wherein: the outer end of the rubber ball (22) is embedded into an interface at the outer end of the lightning protection device shell (1), and a gap is reserved between the bottom end of the limiting plate (20) and the top end of the supporting plate (19).