阅读说明：本技术 一种用于城市服务的防水性能好的消防指示装置 (A fire control indicating device that waterproof performance is good for urban service ) 是由 陈杰 丁玉红 于 2019-07-23 设计创作，主要内容包括：本发明涉及一种用于城市服务的防水性能好的消防指示装置,包括壳体、通电线和至少两个灯管,所述壳体内设有控制系统,所述壳体的顶部设有通孔,所述壳体内设有控制系统,所述通电线的一端与控制系统电连接,所述通电线的另一端穿过通孔设置在壳体的上方,所述通电线竖向设置,所述控制系统与其中一个灯管电连接,所述壳体内设有密封机构和调整机构,所述密封机构包括密封组件和检测组件,所述密封组件包括挡块、移动环和两个驱动单元,所述调整机构包括转换组件和两个连接组件,该用于城市服务的防水性能好的消防指示装置通过密封机构达到了密封的效果,不仅如此,还通过调整机构提高了续航能力。(The invention relates to a fire-fighting indicating device with good waterproof performance for urban service, which comprises a shell, an electrified wire and at least two lamp tubes, wherein a control system is arranged in the shell, a through hole is formed in the top of the shell, the control system is arranged in the shell, one end of the electrified wire is electrically connected with the control system, the other end of the electrified wire penetrates through the through hole and is arranged above the shell, the electrified wire is vertically arranged, the control system is electrically connected with one of the lamp tubes, a sealing mechanism and an adjusting mechanism are arranged in the shell, the sealing mechanism comprises a sealing assembly and a detection assembly, the sealing assembly comprises a stop block, a movable ring and two driving units, the adjusting mechanism comprises a conversion assembly and two connecting assemblies, and the fire-fighting indicating device with good waterproof performance for urban service achieves the sealing effect through the sealing mechanism, moreover, the cruising ability is improved through the adjusting mechanism.)

1. A fire-fighting indicating device with good waterproof performance for urban service comprises a shell (1), an electrified wire (2) and at least two lamp tubes (3), wherein a control system is arranged in the shell (1), a through hole is formed in the top of the shell (1), the control system is arranged in the shell (1), one end of the electrified wire (2) is electrically connected with the control system, the other end of the electrified wire (2) penetrates through the through hole and is arranged above the shell (1), the electrified wire (2) is vertically arranged, and the control system is electrically connected with one of the lamp tubes (3), and is characterized in that a sealing mechanism and an adjusting mechanism are arranged in the shell (1);

The sealing mechanism comprises a sealing assembly and a detection assembly, the sealing assembly comprises a stop block (4), a moving ring (5) and two driving units, the stop block (4) is arranged in a through hole, a connecting hole is formed in the stop block (4), the connecting hole is vertically arranged and matched with a live wire (2), the connecting hole is sleeved on the live wire (2), the stop block (4) is in a round table shape, the top of the stop block (4) is arranged in the through hole, the area of the top of the stop block (4) is smaller than that of the bottom of the stop block (4), the stop block (4) is abutted against the inner wall of the through hole, the moving ring (5) is horizontally arranged in the shell (1), the live wire (2) penetrates through an annular hole of the moving ring (5), the moving ring (5) is fixedly connected with the bottom of the stop block (4), and the axis of the annular hole on the moving ring (5) coincides with the axis of the connecting hole on the stop block (4), the two driving units are respectively arranged at two sides of the stop block (4), and the driving units are in transmission connection with the moving ring (5);

The adjusting mechanism comprises a conversion assembly and two connecting assemblies, the conversion assembly comprises a first motor (6), a rotating shaft (7) and two rotating disks (8), the first motor (6) is fixed on the inner wall of one side of the shell (1), the rotating shaft (7) is horizontally arranged, the first motor (6) is connected with one end of the rotating shaft (7) in a transmission manner, the inner wall of one side of the shell (1), which is far away from the first motor (6), is sleeved on the other end of the rotating shaft (7), the rotating disks (8) and the rotating shaft (7) are coaxially arranged, the rotating disks (8) are sleeved on the rotating shaft (7), the rotating shaft (7) and the rotating disks (8) are in interference fit, the two rotating disks (8) are respectively arranged on two sides of the electrified wire (2), the lamp tube (3) is horizontally arranged, and the lamp tube (3) is uniformly arranged by taking the axis of the rotating shaft (7) as the central, the rotating disc (8) is sleeved on the lamp tube (3), the two connecting components are respectively arranged at two ends of the lamp tube (3) close to the top of the shell (1), and the control system is electrically connected with the lamp tube (3) close to the inner top of the shell (1) through the connecting components;

the switch module is arranged in the shell (1), the switch module comprises a switch control circuit, the switch control circuit comprises a first resistor R1, a second resistor R2, a first diode D1, a second diode D2, a first MOS tube Q1 and a second MOS tube Q2, the grid of the first MOS tube Q1 is connected with the cathode of the first diode D1, the source of the first MOS tube Q1 is externally connected with a 12V direct-current voltage power supply, the drain of the first MOS tube Q1 is connected with the drain of the second MOS tube Q2, the source of the second MOS tube Q2 is grounded, the grid of the second MOS tube Q2 is connected with the anode of the second diode D2, the first resistor R1 is connected with the first diode D1 in parallel, the second resistor R2 is connected with the second diode D2 in parallel, and the anode of the first diode D1 is connected with the cathode of the second diode D2.

2. the fire-fighting indicating device with good waterproof performance for urban service according to claim 1, wherein the driving unit comprises a second motor (9) and a screw rod (10), the second motor (9) is fixed on the inner wall of the shell (1), the screw rod (10) is vertically arranged, the second motor (9) is in transmission connection with the screw rod (10), the moving ring (5) is sleeved on the screw rod (10), and a connection part of the moving ring (5) and the screw rod (10) is provided with a thread matched with the screw rod (10).

3. The fire-fighting indicating device with good waterproof performance for urban service according to claim 1, wherein the detection assembly comprises a test tube (11), a transmission plate (12), a support block (13), a power rod (14), a first spring (15) and a squeezing block (16), the test tube (11) is horizontally arranged below the lamp tube (3), one side of the casing (1) close to the first motor (6) is sleeved on the test tube (11), the test tube (11) is hermetically connected with the casing (1), the inside of the casing (1) is communicated with the outside of the casing (1) through the test tube (11), the transmission plate (12) is vertically arranged in the test tube (11), the test tube (11) is sleeved on the transmission plate (12), the power rod (14) and the test tube (11) are coaxially arranged, one end of the rod (14) is fixed on one side of the transmission plate (12) far away from the first motor (6), the device comprises a power rod (14), an extrusion block (16) and a supporting block (13), wherein the extrusion block (16) is fixed at the other end of the power rod (14), the extrusion block (16) abuts against the inner wall of one side, away from the first motor (6), of a shell (1), the supporting block (13) is arranged between a testing tube (11) and the extrusion block (16), the supporting block (13) is fixed on the inner wall of the shell (1), the transmission plate (12) is connected with the supporting block (13) through a first spring (15), the first spring (15) is sleeved on the power rod (14), air pressure in the shell (1) is smaller than atmospheric pressure, the first spring (15) is in a compression state, a PLC (programmable logic controller) and an antenna are arranged in the shell (1), a contact sensor is arranged at one side, away from the power rod (14), of the extrusion block (16), and the contact sensor, the antenna and the second motor (.

4. A fire indication device for urban service having good waterproof performance according to claim 3, wherein the inner wall of the test tube (11) is coated with a sealing grease.

5. A fire indication device for urban service with good water resistance according to claim 3, characterized in that the power rod (14) is coated with lubricating oil.

6. The fire fighting indicating device for urban service with good waterproof performance according to claim 1, wherein the connecting assembly comprises an electromagnet (17), a fixing post (18), a stopper (19), a magnet block (20), a second spring (21), a connecting rod (22) and a connecting block (23), the connecting block (23) is arranged on the lamp tube (3), the control system is electrically connected with the lamp tube (3) through the connecting block (23), the connecting rod (22) is vertically arranged, the bottom end of the connecting rod (22) is fixed on the top of the connecting block (23), the magnet block (20) is fixed on the top end of the connecting rod (22), the fixing post (18) is horizontally arranged, the magnet block (20) is sleeved on the fixing post (18), the electromagnet (17) is fixed on one end of the fixing post (18) far away from the lamp tube (3), the stopper (19) is fixed on the other end of the lamp tube (3), magnet piece (20) support with dog (19) and lean on, electro-magnet (17) are fixed on the inner wall of casing (1), electro-magnet (17) are connected with magnet piece (20) through second spring (21), second spring (21) cover is established on fixed column (18), be equipped with photoelectric sensor in casing (1), photoelectric sensor, electro-magnet (17), antenna and first motor (6) all are connected with the PLC electricity.

7. a fire indicator device for urban services with good waterproofing properties according to claim 6, characterized in that said second spring (21) is in compression.

8. A fire indicator for urban services with good waterproofing properties according to claim 6, characterized in that the connecting rod (22) is an insulator.

9. The fire-fighting indicating device with good waterproof performance for urban service according to claim 1, characterized in that at least two auxiliary blocks (24) are arranged in the through hole, the auxiliary blocks (24) are circumferentially and uniformly arranged on the inner wall of the through hole by taking the axis of the through hole as a center, two adjacent auxiliary blocks (24) are hermetically connected, the vertical section of each auxiliary block (24) is in the shape of a right triangle, and the edge of the hypotenuse of the auxiliary block (24) is attached to the side surface of the stop block (4).

10. A fire indicator for urban services with good waterproofing properties according to claim 1, characterized in that the stop block (4) is made of rubber.

Technical Field

The invention relates to the field of smart cities, in particular to a fire-fighting indicating device with good waterproof performance for urban service.

Background

The smart city senses, analyzes and integrates various key information of a city operation core system by using information and communication technical means, so as to make intelligent response to various requirements including civil life, environmental protection, public safety, urban service and industrial and commercial activities, wherein the fire-fighting indicator lamp is one of smart city equipment, a safety exit character and an arrow are arranged on the fire-fighting indicator lamp for indicating, and the fire-fighting indicator lamp is mainly used for guiding trapped people to evacuate or developing fire-fighting and rescue actions.

Present fire control pilot lamp for underground garage when meetting torrential rain or flood condition, the condition that underground garage's ponding floods fire control pilot lamp often can appear, lead to fire control pilot lamp rainwater short circuit, make fire control pilot lamp lose the indicating capability, still can arouse personnel on every side to electrocute when serious, moreover, fluorescent tube in the current fire control pilot lamp has certain life, if the fluorescent tube damages and can not in time maintain, can make fire control pilot lamp can't play the evacuation of the personnel of guide stranded or expand the rescue action function of putting out a fire, the practicality has been reduced.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to overcome the defects of the prior art, the fire-fighting indicating device used for urban service and having good waterproof performance is provided.

The technical scheme adopted by the invention for solving the technical problems is as follows: a fire-fighting indicating device with good waterproof performance for urban service comprises a shell, an electrified wire and at least two lamp tubes, wherein a control system is arranged in the shell, a through hole is formed in the top of the shell, the control system is arranged in the shell, one end of the electrified wire is electrically connected with the control system, the other end of the electrified wire penetrates through the through hole and is arranged above the shell, the electrified wire is vertically arranged, the control system is electrically connected with one of the lamp tubes, and a sealing mechanism and an adjusting mechanism are arranged in the shell;

The sealing mechanism comprises a sealing assembly and a detection assembly, the sealing assembly comprises a stop block, a moving ring and two driving units, the stop block is arranged in a through hole, a connecting hole is formed in the stop block, the connecting hole is vertically arranged and matched with a power line, the connecting hole is sleeved on the power line, the stop block is in a round table shape, the top of the stop block is arranged in the through hole, the area of the top of the stop block is smaller than that of the bottom of the stop block, the stop block is abutted against the inner wall of the through hole, the moving ring is horizontally arranged in the shell, the power line penetrates through the annular hole of the moving ring, the moving ring is fixedly connected with the bottom of the stop block, the axis of the annular hole in the moving ring is overlapped with the axis of the connecting hole in the stop block, the two driving units are respectively arranged on two sides of the stop block;

the adjusting mechanism comprises a conversion component and two connecting components, the conversion component comprises a first motor, a rotating shaft and two rotating discs, the first motor is fixed on the inner wall of one side of the shell, the rotating shaft is horizontally arranged, the first motor is in transmission connection with one end of the rotating shaft, the inner wall of the shell far away from one side of the first motor is sleeved on the other end of the rotating shaft, the rotating disc and the rotating shaft are coaxially arranged, the rotating disc is sleeved on the rotating shaft, the rotating shaft is in interference fit with the rotating disc, the two rotating discs are respectively arranged at two sides of the electrified wire, the lamp tubes are horizontally arranged, the lamp tubes are uniformly arranged in the circumferential direction by taking the axis of the rotating shaft as the center, the rotating disc is sleeved on the lamp tubes, the two connecting components are respectively arranged at two ends of the lamp tubes close to the top of the shell, and the control system is electrically connected with the lamp tubes close to the top of the shell through the connecting components;

The switch module is arranged in the shell and comprises a switch control circuit, the switch control circuit comprises a first resistor R1, a second resistor R2, a first diode D1, a second diode D2, a first MOS tube Q1 and a second MOS tube Q2, the grid of the first MOS tube Q1 is connected with the cathode of the first diode D1, the source of the first MOS tube Q1 is externally connected with a 12V direct-current voltage power supply, the drain of the first MOS tube Q1 is connected with the drain of the second MOS tube Q2, the source of the second MOS tube Q2 is grounded, the grid of the second MOS tube Q2 is connected with the anode of the second diode D2, the first resistor R1 is connected with the first diode D1 in parallel, the second resistor R2 is connected with the second diode D2 in parallel, and the anode of the first diode D1 is connected with the cathode of the second diode D2.

preferably, in order to drive the movable ring to ascend, the driving unit comprises a second motor and a screw rod, the second motor is fixed on the inner wall of the shell, the screw rod is vertically arranged, the second motor is in transmission connection with the screw rod, the movable ring is sleeved on the screw rod, and a thread matched with the screw rod is arranged at the joint of the movable ring and the screw rod.

preferably, in order to realize the function of detecting the tightness of the shell, the detection assembly comprises a test tube, a transmission plate, a support block, a power rod, a first spring and a squeezing block, the test tube is horizontally arranged below the lamp tube, one side of the shell, which is close to the first motor, is sleeved on the test tube, the test tube is hermetically connected with the shell, the interior of the shell is communicated with the exterior of the shell through the test tube, the transmission plate is vertically arranged in the test tube, the test tube is sleeved on the transmission plate, the power rod and the test tube are coaxially arranged, one end of the power rod is fixed on one side of the transmission plate, which is far away from the first motor, the squeezing block is fixed at the other end of the power rod, the squeezing block abuts against the inner wall of the shell, which is far away from the first motor, the support block is arranged between the test tube and the squeezing block, and the support block is fixed, the transmission plate is connected with the supporting block through a first spring, the first spring sleeve is arranged on the power rod, air pressure in the shell is smaller than atmospheric pressure, the first spring is in a compression state, a PLC and an antenna are arranged in the shell, one side, far away from the power rod, of the extrusion block is provided with a contact sensor, and the contact sensor, the antenna and the second motor are all electrically connected with the PLC.

Preferably, in order to improve sealability, the inner wall of the test tube is coated with a sealing grease.

Preferably, the power rod is coated with a lubricating oil in order to reduce the frictional force between the power rod and the support block.

As preferred, in order to facilitate the rotation of the lamp tube, the connection assembly includes an electromagnet, a fixing column, a stop block, a magnet block, a second spring, a connection rod and a connection block, the connection block is disposed on the lamp tube, the control system is electrically connected to the lamp tube through the connection block, the connection rod is vertically disposed, the bottom end of the connection rod is fixed at the top of the connection block, the magnet block is fixed at the top end of the connection rod, the fixing column is horizontally disposed, the magnet block is sleeved on the fixing column, the electromagnet is fixed at one end of the fixing column far away from the lamp tube, the stop block is fixed at the other end of the lamp tube, the magnet block is abutted against the stop block, the electromagnet is fixed on the inner wall of the casing, the electromagnet is connected with the magnet block through the second spring, the electromagnet, the antenna and the first motor are all electrically connected with the PLC.

Preferably, in order to improve the firmness of the connection between the connecting block and the lamp tube, the second spring is in a compressed state.

Preferably, the connection rod is an insulator in order to prevent electric leakage.

preferably, in order to improve the sealing effect, at least two auxiliary blocks are arranged in the through hole, the auxiliary blocks are circumferentially and uniformly arranged on the inner wall of the through hole by taking the axis of the through hole as the center, the two adjacent auxiliary blocks are connected in a sealing manner, the vertical cross section of each auxiliary block is in the shape of a right-angled triangle, and the edge of the inclined edge of the right-angled triangle of each auxiliary block is attached to the side face of the stop block.

Preferably, the stopper is made of rubber to further improve sealing performance.

the fire-fighting indicating device for urban service has the advantages that the fire-fighting indicating device with good waterproof performance achieves a sealing effect through the sealing mechanism, compared with the existing sealing mechanism, the sealing mechanism has the effect of detecting the sealing performance, when the sealing performance in the shell is reduced, the sealing performance can be temporarily improved, maintenance is waited, the practicability is higher, in addition, the cruising ability is improved through the adjusting mechanism, and compared with the existing adjusting mechanism, the adjusting mechanism is simple in structure and lower in cost.

drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural diagram of a fire indicator apparatus for urban service with good waterproof performance according to the present invention;

FIG. 2 is a cross-sectional view of a fire indicator apparatus for urban service that is waterproof;

FIG. 3 is an enlarged view of portion A of FIG. 2;

Fig. 4 is a schematic circuit diagram of the fire fighting indicating device for urban service having good waterproof performance according to the present invention.

FIG. 5 is an enlarged view of portion B of FIG. 2;

In the figure: 1. the device comprises a shell, 2 parts of a power line, 3 parts of a lamp tube, 4 parts of a stop block, 5 parts of a moving ring, 6 parts of a first motor, 7 parts of a rotating shaft, 8 parts of a rotating disc, 9 parts of a second motor, 10 parts of a lead screw, 11 parts of a test tube, 12 parts of a transmission plate, 13 parts of a supporting block, 14 parts of a power rod, 15 parts of a first spring, 16 parts of an extrusion block, 17 parts of an electromagnet, 18 parts of a fixed column, 19 parts of the stop block, 20 parts of a magnet block, 21 parts of a second spring, 22 parts of a connecting rod, 23 parts of a connecting block and 24 parts.

Detailed Description

the present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

As shown in fig. 1-2, a fire-fighting indicating device with good waterproof performance for urban service comprises a shell 1, an electrified wire 2 and at least two lamp tubes 3, wherein a control system is arranged in the shell 1, a through hole is formed in the top of the shell 1, the control system is arranged in the shell 1, one end of the electrified wire 2 is electrically connected with the control system, the other end of the electrified wire 2 penetrates through the through hole and is arranged above the shell 1, the electrified wire 2 is vertically arranged, the control system is electrically connected with one of the lamp tubes 3, and a sealing mechanism and an adjusting mechanism are arranged in the shell 1;

The control system is conducted with the power supply through the power line 2, and one of the lamp tubes 3 is controlled to be lightened through the control system, so that the effect of guiding trapped people to evacuate or developing fire extinguishing rescue actions is achieved.

as shown in fig. 2-3, the sealing mechanism includes a sealing assembly and a detection assembly, the sealing assembly includes a stopper 4, a moving ring 5 and two driving units, the stopper 4 is disposed in the through hole, the stopper 4 is provided with a connecting hole, the connecting hole is vertically disposed, the connecting hole is matched with the power line 2, the connecting hole is sleeved on the power line 2, the stopper 4 is in the shape of a circular truncated cone, the top of the stopper 4 is disposed in the through hole, the area of the top of the stopper 4 is smaller than that of the bottom of the stopper 4, the stopper 4 abuts against the inner wall of the through hole, the moving ring 5 is horizontally disposed in the housing 1, the power line 2 passes through the annular hole of the moving ring 5, the moving ring 5 is fixedly connected with the bottom of the stopper 4, the axis of the annular hole on the moving ring 5 coincides with the axis of the connecting hole on the stopper 4, the two driving units are disposed on two sides of, the driving unit is in transmission connection with the moving ring 5;

The adjusting mechanism comprises a conversion assembly and two connecting assemblies, the conversion assembly comprises a first motor 6, a rotating shaft 7 and two rotating discs 8, the first motor 6 is fixed on the inner wall of one side of the shell 1, the rotating shaft 7 is horizontally arranged, the first motor 6 is in transmission connection with one end of the rotating shaft 7, the inner wall of the shell 1, far away from one side of the first motor 6, is sleeved on the other end of the rotating shaft 7, the rotating discs 8 and the rotating shaft 7 are coaxially arranged, the rotating disc 8 is sleeved on the rotating shaft 7, the rotating shaft 7 is in interference fit with the rotating disc 8, the two rotating discs 8 are respectively arranged on two sides of the electrified line 2, the lamp tube 3 is horizontally arranged, the lamp tube 3 is uniformly arranged by taking the axis of the rotating shaft 7 as the central circumferential direction, the rotating disc 8 is sleeved on the lamp tube 3, and the two connecting assemblies are respectively, the control system is electrically connected with the lamp tube 3 close to the inner top of the shell 1 through the connecting component;

Inner wall through dog 4 and through-hole supports and leans on, the effect of sealed through-hole has been reached, when the leakproofness that detecting element detected casing 1 inner wall reduces, make shift ring 5 upwards remove through drive unit, round platform shape through dog 4, make the space between dog 4 and the through-hole reduce, the leakproofness has been improved, after 3 damages the back of fluorescent tube that switch on with control system, through the operation of first motor 6, make axis of rotation 7 drive fluorescent tube 3 and rotate corresponding angle, thereby reached the effect that the replacement is close to casing 1 interior top fluorescent tube 3, avoid fluorescent tube 3 to damage and lead to the unable normal operating's of this fire control pilot lamp function, the duration has been improved.

As shown in fig. 4, a switch module is disposed in the housing 1, the switch module includes a switch control circuit, the switch control circuit includes a first resistor R1, a second resistor R2, a first diode D1, a second diode D2, a first MOS transistor Q1 and a second MOS transistor Q2, a gate of the first MOS transistor Q1 is connected to a cathode of the first diode D1, a source of the first MOS transistor Q1 is externally connected to a 12V dc voltage power supply, a drain of the first MOS transistor Q1 is connected to a drain of the second MOS transistor Q2, a source of the second MOS transistor Q2 is grounded, a gate of the second MOS transistor Q2 is connected to an anode of the second diode D2, the first resistor R1 is connected to a first diode D1 in parallel, the second resistor R2 is connected to a second diode D2 in parallel, and an anode of the first diode D1 is connected to a cathode of the second diode D2.

In the switch control circuit, the gate inhibition 10 is driven by controlling the conduction of the first MOS transistor Q1 and the second MOS transistor Q2, the reliability of the system is improved, and the reliability of the switch control circuit is improved by limiting the current through the first resistor R1 and the second resistor R2 and performing reverse voltage protection on the first diode D1 and the second diode D2.

Preferably, in order to drive the moving ring 5 to ascend, the driving unit comprises a second motor 9 and a screw rod 10, the second motor 9 is fixed on the inner wall of the casing 1, the screw rod 10 is vertically arranged, the second motor 9 is in transmission connection with the screw rod 10, the moving ring 5 is sleeved on the screw rod 10, a connecting part of the moving ring 5 and the screw rod 10 is provided with a thread matched with the screw rod 10, the screw rod 10 rotates through the operation of the second motor 9, so that the power rod 14 can move upwards on the screw rod 10, and the function of driving the moving ring 5 to ascend is achieved.

preferably, in order to realize the function of detecting the tightness of the housing 1, the detecting assembly includes a testing tube 11, a driving plate 12, a supporting block 13, a power rod 14, a first spring 15 and a squeezing block 16, the testing tube 11 is horizontally disposed below the lamp tube 3, one side of the housing 1 close to the first motor 6 is sleeved on the testing tube 11, the testing tube 11 is hermetically connected with the housing 1, the interior of the housing 1 is communicated with the exterior of the housing 1 through the testing tube 11, the driving plate 12 is vertically disposed in the testing tube 11, the testing tube 11 is sleeved on the driving plate 12, the power rod 14 and the testing tube 11 are coaxially disposed, one end of the power rod 14 is fixed on one side of the driving plate 12 far away from the first motor 6, the squeezing block 16 is fixed on the other end of the power rod 14, the squeezing block 16 is abutted against the inner wall of the housing 1 far away from the first motor 6, the supporting block 13 is arranged between the testing tube 11 and the extrusion block 16, the supporting block 13 is fixed on the inner wall of the shell 1, the transmission plate 12 is connected with the supporting block 13 through a first spring 15, the first spring 15 is sleeved on the power rod 14, the air pressure in the shell 1 is smaller than the atmospheric pressure, the first spring 15 is in a compression state, the shell 1 is internally provided with a PLC (programmable logic controller) and an antenna, one side of the extrusion block 16, which is far away from the power rod 14, is provided with a contact sensor, the antenna and the second motor 9 are all electrically connected with the PLC, because the air pressure in the shell 1 is smaller than the atmospheric pressure, the transmission plate 12 is subjected to an acting force far away from the first motor 6, when the sealing performance in the shell 1 is reduced, the air pressure in the shell 1 is increased, the acting force of the air pressure on the transmission plate 12 is reduced, when the acting force of, the driving plate 12 moves towards the direction close to the first motor 6 under the elastic action of the first spring 15, the driving power rod 14 is driven to move towards the direction close to the first motor 6 under the supporting action of the supporting block 13, so that the extrusion block 16 is separated from the inner wall of the shell 1, the contact sensor cannot detect signals at the moment, the contact sensor sends signals to the PLC, the PLC controls the antenna to send wireless signals to relevant departments, the relevant departments are reminded of timely maintenance, the PLC also enables the screw rod 10 to rotate for a set angle through the second motor 9, the movable ring 5 is made to ascend for a set position, the effect of temporarily improving the sealing performance is achieved, and the function of detecting the sealing performance of the shell 1 is achieved.

Preferably, in order to improve the sealing performance, the inner wall of the test tube 11 is coated with a sealing grease, and the sealing grease can reduce the gap between the transmission plate 12 and the test tube 11, thereby improving the sealing performance.

Preferably, in order to reduce the friction force between the power rod 14 and the supporting block 13, the power rod 14 is coated with a lubricating oil, and the lubricating oil has a lubricating function, so that the friction force between the power rod 14 and the supporting block 13 can be reduced, and the moving fluency of the power rod 14 can be improved.

as shown in fig. 5, the connecting assembly includes an electromagnet 17, a fixing column 18, a stop block 19, a magnet block 20, a second spring 21, a connecting rod 22 and a connecting block 23, the connecting block 23 is disposed on the lamp tube 3, the control system is electrically connected to the lamp tube 3 through the connecting block 23, the connecting rod 22 is vertically disposed, the bottom end of the connecting rod 22 is fixed to the top of the connecting block 23, the magnet block 20 is fixed to the top end of the connecting rod 22, the fixing column 18 is horizontally disposed, the magnet block 20 is sleeved on the fixing column 18, the electromagnet 17 is fixed to one end of the fixing column 18 far from the lamp tube 3, the stop block 19 is fixed to the other end of the lamp tube 3, the magnet block 20 abuts against the stop block 19, the electromagnet 17 is fixed to the inner wall of the housing 1, the electromagnet 17 is connected to the magnet block 20 through the, a photoelectric sensor is arranged in the shell 1, the photoelectric sensor, the electromagnet 17, the antenna and the first motor 6 are all electrically connected with a PLC, when the lamp tube 3 conducted with a control system is damaged, the brightness in the shell 1 is reduced, so that the detection value of the photoelectric sensor exceeds a set value, the photoelectric sensor sends a signal to the PLC, the PLC controls the electromagnet 17 to be electrified, so that an acting force of mutual operation is generated between the electromagnet 17 and the magnet block 20, the magnet block 20 drives the connecting block 23 to be separated from the lamp tube 3 through the connecting rod 22, after a set time, the PLC controls the first motor 6 to operate, so that the first motor 6 drives the rotating disc 8 to rotate for a set angle through the rotating shaft 7, after the PLC sets the time, the PLC controls the electromagnet 17 to be powered off, the connecting block 23 is reset under the elastic action of the second spring 21, and the PLC also controls the antenna to send a wireless signal to relevant departments, thereby accomplishing the function of replacing the lamp tube 3.

Preferably, in order to improve the firmness of the connection between the connection block 23 and the lamp 3, the second spring 21 is in a compressed state, the second spring 21 in the compressed state generates an acting force on the magnet block 20 in a direction close to the lamp 3, and the magnet block 20 enables the connection block 23 to receive the acting force in the direction close to the lamp 3 through the connection rod 22, so that the firmness of the connection between the connection block 23 and the lamp 3 is improved.

Preferably, the tie bar 22 is an insulator to prevent electric leakage, which is poor in conductivity.

Preferably, in order to improve the sealing effect, be equipped with two at least auxiliary blocks 24 in the through-hole, auxiliary block 24 uses the axis of through-hole as the even setting of center circumference on the inner wall of through-hole, two adjacent auxiliary blocks 24 sealing connection, auxiliary block 24's vertical cross sectional shape is right triangle, the limit at auxiliary block 24's right triangle's hypotenuse place is laminated with the side of dog 4, when driving dog 4 upward movement through shift ring 5, through the inclined plane of auxiliary ring and the side contact of dog 4, can make the space between dog 4 and the circular telegram line 2 reduce, has also improved the sealing ability of dog 4 side simultaneously, has improved sealed effect.

Preferably, in order to further improve the sealing performance, the stopper 4 is made of rubber, and the rubber is soft and is easy to extrude, so that the gap between the stopper 4 and the auxiliary block 24 can be reduced, and the sealing performance can be further improved.

When the leakproofness of casing 1 is because ageing when worsening, the atmospheric pressure in the casing 1 increases, make the movable block move under the elastic action of first spring 15, thereby make contact sensor can not detect the signal, with this leakproofness that detects casing 1, rethread drive dog 4 rises and improves the leakproofness temporarily, be convenient for wait for relevant departments to maintain, prevent that the leakproofness of casing 1 from reducing once more, when the fluorescent tube 3 of workspace damages, make rotary disk 8 rotate through first motor 6, thereby the effect of changing fluorescent tube 3 has been reached, prevent that fluorescent tube 3 from damaging and can't reach the effect that the guide stranded personnel are sparse or expand the rescue action of putting out a fire.

Compared with the prior art, this a fire control indicating device that waterproof performance is good for urban service has reached sealed effect through sealing mechanism, compares with current sealing mechanism, and this sealing mechanism has the effect of detecting the leakproofness, and when the leakproofness in casing 1 reduced, can also improve the leakproofness temporarily, awaits the maintenance, and the practicality is higher, moreover, has still improved duration through guiding mechanism, compares with current guiding mechanism, and this guiding mechanism simple structure, the cost is lower.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.