CN214540970U

CN214540970U - Entrance alarm system for intelligent building

Info

Publication number: CN214540970U
Application number: CN202121026569.7U
Authority: CN
Inventors: 周宏建
Original assignee: Nanjing Anuo Technology Co ltd
Current assignee: Chen Hongbo
Priority date: 2021-05-13
Filing date: 2021-05-13
Publication date: 2021-10-29
Anticipated expiration: 2031-05-13

Abstract

The utility model relates to an entry alarm system for wisdom building, it includes the safety cover, be located camera and alarm of safety cover, the safety cover passes through the connecting piece and installs on the wall, be equipped with the lifter on the roof of safety cover, be equipped with the connecting rod on the roof of lifter, the both ends of connecting rod are slided and are connected with the telescopic link, the one end that the connecting rod was kept away from to the telescopic link extends there is the extension rod, be equipped with the cleaning member that is used for two lateral walls of clean safety cover on the extension rod, be equipped with the lifting unit who is used for driving the reciprocating lift of direction of height of lifter along the safety cover on the roof of safety cover, be equipped with the drive assembly who is used for driving two telescopic links to slide in step in opposite directions or back on the body on the connecting rod. According to the outer side wall cleaning device, the outer side walls on two sides of the protective cover are cleaned through the matching of the lifting assembly, the lifting rod, the driving assembly, the two telescopic rods, the extension rod and the cleaning piece, so that the shooting effect and the monitoring effect of the camera are guaranteed; and the safety and stability of the system during monitoring are improved by using the protective cover.

Description

Entrance alarm system for intelligent building

Technical Field

The application relates to the technical field of monitoring equipment, in particular to an entry alarm system for intelligent buildings.

Background

As an intelligent building, the intelligent building integrates advanced technologies of various aspects such as building, communication, computer and control technology, and helps people to manage related building services better.

The Chinese utility model with the authorized bulletin number of CN209517310U discloses an intelligent building monitoring device for buildings, which comprises a camera slidably mounted on a wall surface, wherein an alarm is fixedly connected on the camera, a protective cover for protecting the camera is fixedly connected on the wall surface, the protective cover is transparent organic glass, and the front end and the bottom end of the protective cover are designed in an open manner; the utility model discloses a through transparent safety cover, when guaranteeing normal shooting, play good guard action to camera, alarm to guarantee the safety and stability of monitored control process.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: after a period of use, impurities such as dust are easily accumulated on the outer side wall of the protective cover, so that the transparency of the protective cover is affected, and the monitoring effect of the camera is reduced.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem that the monitoring effect of camera reduces, this application provides an entry alarm system for wisdom building.

The application provides a entry alarm system for wisdom building adopts following technical scheme:

the utility model provides an entry alarm system for wisdom building, includes the safety cover, is located camera and the alarm of safety cover, the safety cover passes through the connecting piece and installs on the wall, be equipped with the lifter on the roof of safety cover, be equipped with the connecting rod on the roof of lifter, the both ends of connecting rod are slided and are connected with the telescopic link, the one end that the connecting rod was kept away from to the telescopic link extends there is the extension rod, be equipped with the cleaning member that is used for two lateral walls of clean safety cover on the extension rod, be equipped with the lifting unit who is used for driving the reciprocating lift of direction of height of lifter edge safety cover on the roof of safety cover, be equipped with the drive assembly who is used for driving two telescopic links and slide in step mutually or back on the body on the connecting rod.

By adopting the technical scheme, in an initial state, the cleaning piece is stored above the protective cover, after a period of use, the driving assembly is used for driving the two telescopic rods to synchronously slide back and forth to the top wall of the protruded protective cover, and then the lifting assembly is used for driving the lifting rod to slide back and forth along the vertical direction, so that the cleaning piece cleans the two outer side walls of the protective cover, and the shooting effect and the monitoring effect of the camera are further ensured; and under the effect of protective cover, help promoting the safety and stability of this camera during operation.

Optionally, the cleaning piece includes the cleaning cotton, be equipped with the storage water tank on the roof of safety cover, be equipped with the water pump on the storage water tank, the one end of water pump is passed through aqueduct and storage water tank intercommunication, the other end intercommunication of water pump has the leading water pipe, the one end that the water pump was kept away from to the leading water pipe runs through the lateral wall of telescopic link and is connected with the telescopic link, the play water end and the cleaning cotton butt of leading water pipe.

By adopting the technical scheme, the water supply assembly is used for supplying water to the water conduit, so that the water conduit is soaked with the cleaning cotton to improve the cleaning effect of the cleaning cotton on the two outer side walls of the protective cover; the water storage tank is matched with the water pump to supply water for the water diversion pipe, and the water diversion pipe is simple and convenient.

Optionally, be equipped with miniature cylinder on the lateral wall of telescopic link one side is kept away from to the extension rod, miniature cylinder's piston rod runs through the lateral wall of extension rod and is connected with clean pole, clean cotton sets up on the lateral wall that clean pole is close to telescopic link one side.

Through adopting above-mentioned technical scheme, when moist clean cotton slides to the bottom of safety cover, utilize miniature cylinder to promote clean pole towards safety cover one side for clean pole extrusion clean cotton, thereby extrude the waste water in the clean cotton, so that clean cotton continues to absorb clean rivers, helps promoting the clean effect of clean cotton to the safety cover.

It is optional, be equipped with the protection casing on the roof of safety cover, all be equipped with the opening that supplies the telescopic link to stretch out on the lateral wall of protection casing both sides, the protection casing is close to and is equipped with two open-close boards that are used for sealing the open-ended on the inside wall of opening one end, open-close board rotates with the protection casing through the pivot to be connected, the cover is equipped with the torsional spring in the pivot, the one end setting of torsional spring is on the inside wall of protection casing, the other end setting of torsional spring is on open-close board's lateral wall.

Through adopting above-mentioned technical scheme, utilize the protection casing to play good dustproof guard action to clean cotton, help guaranteeing the clean effect of clean cotton to the safety cover, when clean cotton follows the telescopic link and stretches out the protection casing, two open-close plates keep away from each other and with the lateral wall butt of telescopic link, when clean cotton follows the synchronous sliding of telescopic link and when accomodating in the protection casing, under the cooperation of torsional spring and pivot, two open-close plates automatic recovery extremely with the opening closed.

Optionally, be equipped with uncovered on the roof of protection casing, the top of protection casing is equipped with and is used for sealing open fly leaf, the one end of fly leaf is close to the inside wall of uncovered one side with the protection casing articulated, the fly leaf is kept away from and is equipped with the handle on the roof of one side of protection casing articulated, the protection casing is kept away from and is equipped with locking Assembly with the one end of fly leaf articulated.

Through adopting above-mentioned technical scheme, set up uncovered to the workman overhauls lifting unit, drive assembly etc. in to the protection casing, utilizes fly leaf and locking Assembly's cooperation, makes things convenient for the workman to open uncovered.

Optionally, the locking assembly comprises a rotating shaft, the rotating shaft is rotatably connected to the top wall of the protective cover, a locking block is arranged on the rotating shaft, a locking hole penetrates through the side wall, away from one side hinged to the protective cover, of the movable plate, and the locking block is in insertion fit with the locking hole.

By adopting the technical scheme, in the initial state, the movable plate is closed with the opening, the locking block is tightly propped against the movable plate, when a worker needs to open the movable plate, the locking block is rotated to be opposite to the locking hole, and then the handle is pulled, so that the movable plate is separated from the locking block.

Optionally, the lifter includes dead lever and movable rod, the bottom of dead lever sets up on the roof of protecting cover, be equipped with spout one on the roof of dead lever, the movable rod is kept away from the one end of connecting rod and is slided the cooperation with spout one, lifting unit is including setting up a servo motor in spout one, a servo motor's output shaft has the lead screw, lead screw and movable rod threaded connection.

Through adopting above-mentioned technical scheme, when wasing the lateral wall of safety cover, utilize a servo motor drive lead screw to rotate, under the guide effect of spout one for the lead screw drives the movable rod and reciprocates to slide along vertical direction, thereby realizes lifter and clean cotton's lift, and simple structure is stable.

Optionally, a second sliding groove penetrates through the end wall of the connecting rod, the driving assembly comprises a bidirectional screw rod which is rotatably connected in the second sliding groove, one end of the bidirectional screw rod is in threaded connection with one of the telescopic rods, the other end of the bidirectional screw rod is in threaded connection with the other telescopic rod, a first bevel gear is coaxially arranged on the peripheral side wall in the middle of the bidirectional screw rod, a second servo motor is arranged on the outer side wall of the connecting rod, an output shaft of the second servo motor is connected with a second bevel gear, and the second bevel gear is meshed with the first bevel gear.

Through adopting above-mentioned technical scheme, under the initial state, the one end of telescopic link is accomodate in spout two, when the clean safety cover of needs, utilizes second servo motor drive second bevel gear to rotate, and second bevel gear and first bevel gear meshing transmission make first bevel gear drive two-way screw rod and rotate, under the guide effect of spout two, make two-way screw rod drive two synchronous mutually opposite slip of telescopic link to stretching out the connecting rod, simple structure is stable.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the outer side walls on two sides of the protective cover are cleaned by matching the lifting rod, the telescopic rod, the extension rod, the driving assembly, the lifting assembly and the cleaning piece, so that the shooting effect and the monitoring effect of the camera are improved; the safety and stability of the camera during working are improved by using the protective cover;

2. the water supply assembly is used for supplying water to the cleaning cotton, so that the cleaning effect is improved, when the cleaning cotton slides to the bottom end of the protective cover, the cleaning rod is pushed towards one side of the protective cover by the aid of the micro air cylinder, the cleaning rod extrudes the cleaning cotton, and therefore waste water in the cleaning cotton is extruded out, and the cleaning cotton can continuously absorb clean water flow;

3. the protective cover is arranged, so that a good dustproof protection effect is achieved on the cleaning cotton, and the cleaning effect of the cleaning cotton on the protective cover is favorably ensured;

4. utilize fly leaf and locking Assembly's cooperation, make things convenient for the workman to open uncovered to overhaul lifting unit, drive assembly etc. in the protection casing.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic sectional view showing a connection relationship among a shield, a protective cover, a lifting rod, a connecting rod, a telescopic rod, an extension rod, cleaning cotton, a driving assembly and a lifting assembly according to an embodiment of the present disclosure.

Fig. 3 is an enlarged view at a in fig. 2.

Fig. 4 is an enlarged view at B in fig. 2.

Fig. 5 is an enlarged view at C in fig. 2.

Fig. 6 is a schematic structural diagram for showing the connection relationship among the water storage tank, the water pump, the water guide pipe, the water conduit and the telescopic rod in the embodiment of the present application.

Fig. 7 is a schematic structural diagram for showing a connection relationship among the shield, the movable plate, the shield, and the locking assembly in the embodiment of the present application.

Fig. 8 is an enlarged view at D in fig. 7.

Description of reference numerals: 1. a protective cover; 2. a camera; 3. an alarm; 4. a wall surface; 5. a lifting rod; 51. fixing the rod; 510. a first sliding chute; 52. a movable rod; 6. a connecting rod; 60. a second chute; 7. a telescopic rod; 8. an extension rod; 9. a lifting assembly; 91. a first servo motor; 92. a screw rod; 10. a drive assembly; 101. a bidirectional screw; 102. a first bevel gear; 103. a second servo motor; 104. a second bevel gear; 105. a limiting ring; 11. cleaning cotton; 111. a flexible clamping block; 12. a water storage tank; 13. a water pump; 14. a water conduit; 15. a water conduit; 16. a micro cylinder; 17. a cleaning rod; 170. a card slot; 18. a protective cover; 180. an opening; 181. opening the mouth; 182. a fixing plate; 19. opening and closing the board; 20. a rotating shaft; 21. a torsion spring; 22. a movable plate; 220. a hinge; 221. a baffle plate; 2210. a locking hole; 23. a handle; 24. a locking assembly; 241. a rotating shaft; 242. a locking block; 25. an end plate; 26. and (4) bolts.

Detailed Description

The present application is described in further detail below with reference to figures 1-8.

The embodiment of the application discloses an entry alarm system for wisdom building. Referring to fig. 1, an entry alarm system for wisdom building is including setting up safety cover 1 on wall 4, be located camera 2 of safety cover 1 and install alarm 3 on camera 2, safety cover 1 passes through the connecting piece to be installed on wall 4, the connecting piece includes two end plates 25 and a plurality of bolt 26, one of them end plate 25 fixed connection is on the lateral wall of 1 one side of safety cover, another end plate 25 fixed connection is on the lateral wall of 1 opposite side of safety cover, end plate 25 passes through bolt 26 to be fixed on wall 4.

Referring to fig. 1 and 2, a protection cover 18 is arranged on the top wall of the protection cover 1, a lifting rod 5 is arranged in the protection cover 18 and located on the top wall of the protection cover 1, the lifting rod 5 comprises a fixed rod 51 and a movable rod 52, the bottom wall of the fixed rod 51 is fixedly connected to the top wall of the protection cover 1, a first sliding groove 510 is arranged on the top wall of the fixed rod 51, the bottom end of the movable rod 52 is connected in the first sliding groove 510 in a sliding mode, the cross section of the movable rod 52 is rectangular, and a lifting assembly 9 is arranged in the first sliding groove 510.

Referring to fig. 1 and 2, fixedly connected with connecting rod 6 on the roof of movable rod 52, the both ends of connecting rod 6 are slided and are connected with telescopic link 7, the shape of the cross section of telescopic link 7 is the rectangle, telescopic link 7 is kept away from on the diapire of the one end of lifter 5 vertical fixedly connected with extension rod 8, extension rod 8 is equipped with the cleaning member on being close to the lateral wall on one side of dead lever 51, the cleaning member includes cleaning cotton 11, be equipped with on the connecting rod 6 and be used for driving two telescopic links 7 synchronous in opposite directions or carry on the back drive assembly 10 that slides mutually.

Referring to fig. 1 and 2, under the initial state, in order to reduce the influence to camera 2 shooting, clean subassembly is located the top of safety cover 1, when cleaning the lateral wall of safety cover 1 both sides, earlier utilize two synchronous back of the body slideings of telescopic link 7 of drive assembly 10 drive, make clean subassembly relative with safety cover 1, it slides to telescopic link 7 and is close to safety cover 1 towards dead lever 51 one side along a spout 510 to recycle lift assembly 9 drive movable rod 52, rethread lift assembly 9 and clean subassembly's cooperation, clean the lateral wall of safety cover 1 both sides, thereby guarantee camera 2's shooting effect, and then guarantee this alarm system's control alarm effect, safety and stability when helping promoting this system to use.

Referring to fig. 1 and 2, two sides of the protection cover 18 opposite to the end wall of the connecting rod 6 are provided with openings 180 for extending the telescopic rods 7, and two opening plates 19 are hinged on the inner side wall of the protection cover 18 close to the openings 180, and the two opening plates 19 are symmetrically arranged.

Referring to fig. 2 and 3, the opening plate 19 is rotatably connected to the shield 18 through a rotating shaft 20, a torsion spring 21 is sleeved on the rotating shaft 20, one end of the torsion spring 21 is fixedly connected to the inner side wall of the shield 18, and the other end of the torsion spring 21 is fixedly connected to the opening plate 19.

Referring to fig. 2 and 3, when the protection casing 18 is stretched out to telescopic link 7, two open-close plates 19 keep away from each other and with the lateral wall butt of telescopic link 7, after clean cotton 11 accomplishes the outside wall cleaning of protection casing 1, clean cotton 11 is accomodate in protection casing 18 along with telescopic link 7, under the cooperation of torsional spring 21 and pivot 20, two open-close plates 19 automatic re-setting to with the opening 180 closed.

Referring to fig. 2 and 4, the driving assembly 10 includes a two-way screw 101, a first bevel gear 102, a second servo motor 103 and a second bevel gear 104, a second sliding groove 60 penetrates through an end wall of the connecting rod 6, the two-way screw 101 is rotatably connected in the second sliding groove 60 through a limiting ring 105, one end of the two-way screw 101 is in threaded connection with one of the telescopic rods 7, the other end of the two-way screw 101 is in threaded connection with the other telescopic rod 7, the first bevel gear 102 is coaxially and fixedly connected to a peripheral side wall at the center of the two-way screw 101, the second servo motor 103 is fixedly connected to an outer top wall of the connecting rod 6, an output shaft of the second servo motor 103 penetrates through a side wall of the connecting rod 6 and is coaxially and fixedly connected to the second bevel gear 104, and the second bevel gear 104 is meshed with the first bevel gear 102.

Referring to fig. 2 and 4, the second servomotor 103 drives the second bevel gear 104 to rotate, the second bevel gear 104 is meshed with the first bevel gear 102, so that the first bevel gear 102 drives the two-way screw 101 to rotate, and under the guiding action of the second sliding groove 60, the two-way screw 101 drives the two telescopic rods 7 to synchronously slide back and forth to extend out of the protective cover 18.

Referring to fig. 2, the lifting assembly 9 includes a first servo motor 91 and a screw rod 92, the first servo motor 91 is fixedly connected to the bottom wall of the first sliding slot 510, one end of the screw rod 92 is coaxially and fixedly connected with the output shaft of the first servo motor 91, and the other end of the screw rod 92 is in threaded connection with the bottom end of the movable rod 52; the first servo motor 91 is utilized to drive the screw rod 92 to rotate, and under the guiding action of the first sliding groove 510, the screw rod 92 drives the movable rod 52 to slide towards one side of the fixed rod 51, so that the telescopic rod 7 is close to the protection cover 1.

Referring to fig. 2 and 5, a micro cylinder 16 is fixedly connected to a side wall of the extension rod 8 far away from the lifting rod 5, a piston rod of the micro cylinder 16 penetrates through the side wall of the extension rod 8 and is connected with a cleaning rod 17, a clamping groove 170 is formed in the side wall of the cleaning rod 17, a flexible clamping block 111 is fixedly connected to the side wall of the cleaning cotton 11, and the flexible clamping block 111 and the clamping groove 170 are in interference fit so that a worker can assemble and disassemble the cleaning cotton 11.

Referring to fig. 6, fixedly connected with storage water tank 12 on the roof of safety cover 1, the outer top wall mounting of storage water tank 12 has water pump 13, and water pump 13's one end is passed through aqueduct 14 and is communicated with storage water tank 12, and water pump 13's other end intercommunication has leading water pipe 15, and leading water pipe 15 is kept away from the one end of water pump 13 and is run through the lateral wall of telescopic link 7 and with telescopic link 7 fixed connection, leading water pipe 15 pass the one end and the clean cotton 11 butt of telescopic link 7.

Referring to fig. 5 and 6, when cleaning two lateral walls of safety cover 1, utilize water pump 13 and aqueduct 14's cooperation, supply water for leading water pipe 15, thereby wet clean cotton 11, it cleans the lateral wall of safety cover 1 both sides in step to recycle the clean cotton 11 that lifting unit 9 drove both sides, when clean cotton 11 slided to safety cover 1's bottom, utilize miniature cylinder 16 to promote clean pole 17, make clean pole 17 extrude clean cotton 11, so that extrude the waste water after wasing safety cover 1 in the clean cotton 11, make after clean cotton 11 absorbs clean rivers, continue to wash safety cover 1, thereby guarantee camera 2's the shooting effect.

Referring to fig. 7, an opening 181 is formed in the top wall of the shield 18, a movable plate 22 for closing the opening 181 is disposed at the top end of the shield 18, one end of the movable plate 22 is hinged to the opening wall of the opening 181 through a hinge 220, a handle 23 is fixedly connected to a side wall of one end of the movable plate 22, which is far away from the hinge 220, and the movable plate 22 is fixed to the shield 18 through a locking assembly 24.

Referring to fig. 7, a fixing plate 182 extends from a side wall of the bottom end of the protection cover 18 near the open side of the protection cover 1, the fixing plate 182 may be integrally formed with the protection cover 18, and the fixing plate 182 is mounted on the outer top wall of the protection cover 1 by bolts 26.

Referring to fig. 7 and 8, a baffle 221 extends from the other end of the movable plate 22, the baffle 221 is integrally formed with the movable plate 22, a locking hole 2210 extends through the top wall of the baffle 221, the locking assembly 24 includes a rotating shaft 241 and a locking block 242, the rotating shaft 241 is rotatably connected to the top wall of the end of the protective cover 18 away from the hinge 220, the locking block 242 has a rectangular cross section, the locking block 242 has different lengths and widths, and the locking block 242 is in plug-in fit with the locking hole 2210.

Referring to fig. 7 and 8, in the initial state, the movable plate 22 is closed with the opening 181, the bottom wall of the locking block 242 abuts against the top wall of the blocking plate 221, when a worker needs to perform maintenance on the lifting assembly 9 or the driving assembly 10 in the protection hood 18, the locking block 242 is rotated to be separated from the locking hole 2210, and the worker pulls the handle 23 to open the movable plate 22.

The implementation principle of an entry alarm system for intelligent buildings in the embodiment of the application is as follows: in the initial state, the cleaning cotton 11 is contained in the protective cover 18, when two outer side walls of the protective cover 1 are cleaned, the second servo motor 103 is firstly utilized to drive the second bevel gear 104 to rotate, the second bevel gear 104 is meshed with the first bevel gear 102, so that the first bevel gear 102 drives the bidirectional screw 101 to rotate, and under the guiding action of the second sliding groove 60, the bidirectional screw 101 drives the two telescopic rods 7 to synchronously slide back and forth to extend out of the protective cover 18.

Reuse first servo motor 91 drive lead screw 92 and rotate, under the guide effect of spout 510 for lead screw 92 drives movable rod 52 and slides towards dead lever 51 one side, makes clean cotton 11 be close to safety cover 1, recycles the cooperation of water pump 13 and storage water tank 12, supplies water for leading water pipe 15, so that moisten clean cotton 11.

Reuse utilizes first servo motor 91 drive lead screw 92 to rotate, under the guide effect of spout 510, make lead screw 92 drive movable rod 52 along the reciprocal sliding of vertical direction, make the reciprocal cleanness of the lateral wall of clean cotton 11 to safety cover 1 both sides, when clean cotton 11 slided to the bottom of safety cover 1, utilize miniature cylinder 16 drive clean pole 17 to slide towards safety cover 1 one side, thereby extrude the waste water in clean cotton 11, in order to guarantee the clean effect of clean cotton 11.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an entry alarm system for wisdom building, includes safety cover (1), is located camera (2) and alarm (3) of safety cover (1), its characterized in that: safety cover (1) is installed on wall (4) through the connecting piece, be equipped with lifter (5) on the roof of safety cover (1), be equipped with connecting rod (6) on the roof of lifter (5), the both ends of connecting rod (6) are slided and are connected with telescopic link (7), the one end that connecting rod (6) were kept away from in telescopic link (7) is extended there is extension rod (8), be equipped with the cleaning member that is used for cleaning two lateral walls of safety cover (1) on extension rod (8), be equipped with on the roof of safety cover (1) and be used for driving lifter (5) along lifting unit (9) of the reciprocal lift of direction of height of safety cover (1), be equipped with on connecting rod (6) and be used for driving drive assembly (10) that two telescopic link (7) synchronous phase in opposite directions or carried on the back mutually and slide.

2. The entry alarm system for intelligent buildings according to claim 1, wherein: the cleaning piece is including clean cotton (11), be equipped with storage water tank (12) on the roof of safety cover (1), be equipped with water pump (13) on storage water tank (12), aqueduct (14) and storage water tank (12) intercommunication are passed through to the one end of water pump (13), the other end intercommunication of water pump (13) has leading water pipe (15), the one end that water pump (13) were kept away from in leading water pipe (15) runs through the lateral wall of telescopic link (7) and is connected with telescopic link (7), the play water end and clean cotton (11) butt of leading water pipe (15).

3. The entry alarm system for intelligent buildings according to claim 2, wherein: be equipped with miniature cylinder (16) on extension rod (8) keep away from the lateral wall of telescopic link (7) one side, the piston rod of miniature cylinder (16) runs through the lateral wall of extension rod (8) and is connected with clean pole (17), clean cotton (11) set up on the lateral wall that clean pole (17) are close to telescopic link (7) one side.

4. The entry alarm system for intelligent buildings according to claim 1, wherein: be equipped with protection casing (18) on the roof of protection casing (1), all be equipped with opening (180) that supply telescopic link (7) to stretch out on the lateral wall of protection casing (18) both sides, protection casing (18) are close to and are equipped with two open-close plates (19) that are used for sealing opening (180) on the inside wall of opening (180) one end, open-close plate (19) rotate with protection casing (18) through pivot (20) and are connected, the cover is equipped with torsional spring (21) on pivot (20), the one end setting of torsional spring (21) is on the inside wall of protection casing (18), the other end setting of torsional spring (21) is on the lateral wall of open-close plate (19).

5. The entry alarm system for intelligent buildings according to claim 4, wherein: be equipped with uncovered (181) on the roof of protection casing (18), the top of protection casing (18) is equipped with and is used for sealing fly leaf (22) uncovered (181), the one end of fly leaf (22) is close to the inside wall of uncovered (181) one side with protection casing (18) articulated, fly leaf (22) are kept away from and are equipped with handle (23) on the roof of protection casing (18) articulated one side, protection casing (18) are kept away from and are equipped with locking Assembly (24) with fly leaf (22) articulated one end.

6. The entry alarm system for intelligent buildings according to claim 5, wherein: locking Assembly (24) include axis of rotation (241), axis of rotation (241) rotate to be connected on the roof of protection casing (18), be equipped with latch segment (242) on axis of rotation (241), fly leaf (22) are kept away from and are passed through on the lateral wall of protection casing (18) articulated one side and are equipped with locking hole (2210), latch segment (242) and locking hole (2210) cooperation of pegging graft.

7. The entry alarm system for intelligent buildings according to claim 1, wherein: lifter (5) are including dead lever (51) and movable rod (52), the bottom setting of dead lever (51) is on the outer roof of protecting cover (1), be equipped with spout (510) on the roof of dead lever (51), the one end and the spout (510) the cooperation of sliding of connecting rod (6) are kept away from in movable rod (52), lifting unit (9) are including setting up first servo motor (91) in spout (510), the output shaft of first servo motor (91) has lead screw (92), lead screw (92) and movable rod (52) threaded connection.

8. The entry alarm system for intelligent buildings according to claim 1, wherein: the end wall of the connecting rod (6) is provided with a second sliding groove (60) in a penetrating mode, the driving assembly (10) comprises a two-way screw (101) rotatably connected into the second sliding groove (60), one end of the two-way screw (101) is in threaded connection with one of the telescopic rods (7), the other end of the two-way screw (101) is in threaded connection with the other telescopic rod (7), a first bevel gear (102) is coaxially arranged on the peripheral side wall in the middle of the two-way screw (101), a second servo motor (103) is arranged on the outer side wall of the connecting rod (6), an output shaft of the second servo motor (103) is connected with a second bevel gear (104), and the second bevel gear (104) is meshed with the first bevel gear (102).