CN222256044U

CN222256044U - Alarm device capable of automatically lifting

Info

Publication number: CN222256044U
Application number: CN202422914365.7U
Authority: CN
Inventors: 王旭东; 陆春杨; 何游; 何梦龄; 易启涛; 李超; 肖杨
Original assignee: Chengdu Nanfang Electronic Instruments Co ltd
Current assignee: Chengdu Nanfang Electronic Instruments Co ltd
Priority date: 2024-11-28
Filing date: 2024-11-28
Publication date: 2024-12-27
Anticipated expiration: 2034-11-28

Abstract

The utility model discloses an alarm device capable of automatic lifting and lowering, and relates to the technical field of alarms, and is mainly used to solve the problem of the current urgent need for an alarm device capable of automatic lifting and lowering. Its main structure is: it includes a fixed seat fixed on the roof, a movable seat is suspended below the fixed seat through a metal cable that can be retracted and released vertically, an alarm is fixed on the lower end surface of the movable seat, a retractable and retractable mechanism for retracting and releasing the metal cable is provided in the fixed seat, and a controller capable of controlling the operation of the retractable and retractable mechanism is also provided in the fixed seat. The utility model provides an alarm device capable of automatic lifting and lowering, which can realize the automatic lifting and lowering of the alarm, thereby facilitating maintenance while also avoiding the impact on the installation layout of the workshop.

Description

Alarm device capable of automatically lifting

Technical Field

The utility model relates to the technical field of alarms, in particular to an alarm device capable of automatically lifting.

Background

With the development of technology, the variety of resources available to humans is increasing. For example, hydrogen energy, which is one of the purest energy sources, has the characteristics of high combustion heat value, abundant resources, sustainable development and the like, and is widely produced and used. But at the same time, the chemical property is relatively active, so that potential safety hazards are easily generated in the production and use processes. Therefore, the addition of alarms to workshops and plants for producing such resources has become a necessary condition for effectively avoiding the occurrence of potential safety hazards.

Most of the current alarms adopt a fixed installation or winch-type hoisting installation mode. However, since the factory building and the workshop are generally very tall, the fixed position of the alarm is located on the roof of the factory building and the workshop. Therefore, when the fixed alarm is overhauled, the automatic lifting vehicle is required to be used for arranging manpower for high-altitude operation, so that the operation is very inconvenient and certain potential safety hazards exist, and for a large workshop with a plurality of groups of alarms to be installed, the arrangement of winches and the installation position of a pulley block of the winch-lifted alarm can seriously influence the installation layout of the whole workshop, so that the maintenance and use cost of the workshop is increased in a hidden way.

Thus, there is a need for a new alarm device that can be automatically lifted.

Disclosure of utility model

The utility model aims to provide an alarm device capable of automatically lifting, which can realize the automatic lifting of an alarm, thereby being convenient to overhaul and avoiding the influence on the installation layout of a workshop.

The technical scheme includes that the alarm device capable of automatically lifting comprises a fixed seat, a movable seat is hung below the fixed seat through a metal cable capable of being vertically wound and unwound, an alarm is fixedly arranged on the lower end face of the movable seat, a winding and unwinding mechanism for winding and unwinding the metal cable is arranged in the fixed seat, and a controller capable of controlling the winding and unwinding mechanism to operate is further arranged in the fixed seat.

As a further improvement of the utility model, the winding and unwinding mechanism comprises a motor mounting plate vertically arranged in a fixed seat, wherein a winding and unwinding winch capable of vertically rotating is arranged on one side plate surface of the motor mounting plate, and a permanent magnet motor with an output end in transmission connection with the rotation axis of the winding and unwinding winch is arranged on the other side plate surface;

The movable seat is internally provided with a pulley block mounting frame, the pulley block mounting frame is provided with a pulley block capable of vertically rotating, one end of the metal cable is fixedly connected to the wire winding and unwinding winch, and the other end of the metal cable bypasses the pulley block to be fixedly connected with the fixed seat.

As a further improvement of the utility model, a line-following component is arranged below the winding and unwinding winch, the line-following component comprises a threaded shaft which extends in the same direction as the rotating shaft of the winding and unwinding winch, one end of the threaded shaft is rotationally connected with a motor mounting plate, and the other end of the threaded shaft is rotationally connected with a vertically arranged line-following component mounting plate;

The wire guide device is characterized in that the thread shaft is provided with a wire guide device matched with the thread shaft, a wire passing channel for a metal cable to pass through is vertically arranged on one side, away from the thread shaft, of the wire guide device, a guide rod which extends in the same direction and movably penetrates through the wire guide device is further arranged on one side of the thread shaft, and two ends of the guide rod are respectively connected with the motor mounting plate and the wire guide assembly mounting plate.

As a further improvement of the utility model, the line assembly mounting plate is provided with a driving gear which can axially rotate and is in transmission connection with the axle center of the take-up and pay-off winch, the line assembly mounting plate is also provided with a driven gear which can axially rotate and is in transmission connection with the end part of the threaded shaft, and the driving gear is in meshed connection with the driven gear.

As a further improvement of the utility model, the fixing seat comprises a fixing seat shell which is vertically arranged and has a tubular structure, the upper end of the fixing seat shell is horizontally provided with a fixing plate, and the inside of the fixing seat shell is sequentially and horizontally provided with a controller mounting plate and a winding component mounting plate from top to bottom;

The controller sets up the face on the controller mounting panel, receive and releases line mechanism setting between controller mounting panel and rolling subassembly mounting panel, upper edge, the lower edge of motor mounting panel respectively with controller mounting panel and rolling subassembly mounting panel fixed connection, and all be equipped with the wire mouth that passes that supplies the metal cable to pass on the rolling subassembly mounting panel of motor mounting panel both sides.

As a further improvement of the utility model, two wiring passing pipes which are respectively corresponding to the controller and the permanent magnet motor are arranged on the side wall of the shell of the fixed seat.

As a further improvement of the utility model, the movable seat comprises a movable seat shell which is vertically arranged and is of a tubular structure, the lower end of the movable seat shell is horizontally provided with an alarm mounting plate, the inner wall of the upper part of the movable seat shell is also horizontally provided with a pulley block mounting plate, the pulley block mounting plate is arranged on the lower plate surface of the pulley block mounting plate, and two wire passing openings for a metal cable to pass through are oppositely arranged on the pulley block mounting plate.

As a further improvement of the utility model, the aerial plug male head electrically connected with the alarm is vertically arranged between the two wire passing ports, the aerial plug female head mounting plate is horizontally arranged on the lower end surface of the fixing seat, the aerial plug female head which is in quick plug fit with the aerial plug male head and is electrically connected with the controller is vertically arranged on the aerial plug female head mounting plate, and the wire passing ports for the metal cables to pass through are arranged on the aerial plug female head mounting plates at two sides of the aerial plug female head.

As a further improvement of the utility model, the upper plate surfaces of the pulley block mounting plates at the two sides of the aviation plug are vertically provided with positioning guide posts, and the aviation plug mounting plate is provided with guide sockets which are in quick-insertion fit with the positioning guide posts.

As a further improvement of the utility model, a proximity switch electrically connected with the controller is arranged on the lower plate surface of the aviation plug installation plate.

The beneficial effects are that:

Compared with the prior art, the alarm device capable of automatically lifting has the advantages that:

the device is arranged on the roof of a factory building and a workshop through the fixing seat, when the alarm is required to be lifted, the movable seat hung below the fixing seat can be lifted and moved only by driving the winding and unwinding mechanism to wind and unwind the metal cable through the controller in the fixing seat, so that the alarm arranged on the movable seat can be lifted and lowered automatically;

Meanwhile, compared with the existing winch hoisting type alarm, the device does not need to additionally search space to set an additional winch and pulley blocks, so that the influence on workshop installation layout is avoided, and the use and maintenance cost of a workshop is reduced.

The utility model will become more apparent from the following description taken in conjunction with the accompanying drawings which illustrate embodiments of the utility model.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a diagram of one of the usage patterns of the present utility model;

FIG. 2 is a second view of the present utility model;

FIG. 3 is an internal block diagram of the present utility model;

FIG. 4 is an exploded view of the pay-off and take-up mechanism of the present utility model;

FIG. 5 is an exploded view of the holder of the present utility model;

Fig. 6 is an exploded view of the movable seat of the present utility model.

The device comprises a 1-fixed seat, a 11-fixed plate, a 12-controller mounting plate, a 13-winding assembly mounting plate, a 14-aviation plug mounting plate, a 15-wiring passing pipe, a 16-fixed seat shell, a 2-controller, a 3-permanent magnet motor, a 31-motor mounting plate, a 32-coiling and uncoiling winch, a 4-wiring assembly mounting plate, a 41-driving gear, a 42-driven gear, a 43-threaded shaft, a 44-wiring device, a 45-guide rod, a 5-aviation plug, a 51-proximity switch, a 52-guiding socket, a 6-metal cable, a 61-wire passing port, a 7-movable seat, a 71-pulley block mounting plate, a 72-aviation plug, a 73-positioning guide post, a 74-movable seat shell, a 75-alarm mounting plate, an 8-pulley block, an 81-pulley block mounting plate and a 9-alarm.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, or may be, of course, mechanically connected, or electrically connected, or may be, in addition, directly connected, or indirectly connected through an intermediate medium, or may be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Embodiments of the present utility model will now be described with reference to the accompanying drawings.

Examples:

The specific embodiment of the utility model is shown in figures 1-6, and the alarm device capable of automatically lifting comprises a plurality of fixing seats 1 which are fixedly arranged on a factory building and a workshop and used for detecting the gas concentration. Wherein, fixing base 1 below is hung through the metal cable 6 that can receive and release vertically and is equipped with movable seat 7, and alarm 9 has been set firmly to the terminal surface under the movable seat 7. In order to realize the lifting of the alarm 9, a winding and unwinding mechanism for winding and unwinding the metal cable 6 is arranged in the fixing seat 1, and a controller 2 capable of controlling the operation of the winding and unwinding mechanism is also arranged in the fixing seat 1. In this embodiment, the raising and lowering of the alarm 9 are completed by the take-up and pay-off mechanism, and the height can be customized according to the height of the factory building.

Before the device is used, the fixing seat 1 is required to be fixedly installed on the roof of a factory building and a workshop, so that the fixed installation of the whole device is completed. When the alarm 9 needs to be overhauled, an instruction is sent to the controller 2 through the remote control unit, the controller 2 drives the winding and unwinding mechanism to lower the metal cable 6, so that the movable seat 7 hung below the fixed seat and the alarm 9 on the movable seat 7 are lowered to a specified position, and then the special appliance is used for overhauling and testing the alarm 9, after overhauling is finished, the instruction is sent to the controller 2 again through the remote control unit, and the controller 2 drives the winding and unwinding mechanism to wind the metal cable 6, so that the movable seat 7 hung below the fixed seat and the alarm 9 on the movable seat 7 are lifted to the original position.

Compared with the existing fixed alarm, the device does not need to adopt an automatic lifting vehicle to arrange manpower for high-altitude operation when overhauling, and the automatic lifting of the alarm 9 can be realized only by a remote control controller, so that potential safety hazards caused by manual high-altitude overhauling are avoided when overhauling is convenient. Meanwhile, compared with the existing winch hoisting type alarm, the device does not need to additionally search space to set an additional winch and pulley blocks, so that the influence on workshop installation layout is avoided, and the use and maintenance cost of a workshop is reduced.

Regarding the take-up and pay-off mechanism in the device, it includes a motor mounting plate 31 vertically provided in the holder 1. A winding and unwinding winch 32 capable of vertically rotating is arranged on one side surface of the motor mounting plate 31, and a permanent magnet motor 3 with an output end in transmission connection with the rotation axis of the winding and unwinding winch 32 is arranged on the other side surface. The permanent magnet motor 3 is electrically connected with the controller 2. In this embodiment, the permanent magnet motor 3 adopts a permanent magnet synchronous motor with a built-in speed reducer, and controls forward and reverse operations of an output end thereof through the controller 2, thereby realizing forward and reverse operations of the wire winding winch 32.

In cooperation with the pulley block, a pulley block mounting frame 81 is arranged in the movable seat 7, and a pulley block 8 capable of vertically rotating is arranged on the pulley block mounting frame 81. One end of the metal cable 6 is fixedly connected to the wire winding and unwinding winch 32, and the other end of the metal cable bypasses the pulley block 8 and is fixedly connected with the fixed seat 1. The pulley block 8 is arranged in such a way, so that a movable pulley block can be formed, the movable seat 7 can be lifted by being matched with the forward rotation and the reverse rotation of the wire winding winch 32, and the alarm 9 can be lifted. In this embodiment, the free end of the metal cable 6 may be directly fixed on the fixing base 1 by welding, and of course, in the actual production process, the free end of the metal cable 6 may also be inserted into the fixing base 1 and fixed inside the fixing base 1 by providing an anti-falling member on the free end of the metal cable 6. Meanwhile, the metal cable 6 adopts a stainless steel wire rope with the diameter of 1.2mm, and the normal bearing of the stainless steel wire rope meets the weight of the alarm 9 and the rear end fittings. Meanwhile, the maximum output torque of the control device is controlled by fully calculating the motor power and torque control limiting mode during design, so that the metal cable 6 is prevented from being broken due to unexpected situations.

Meanwhile, in order to guide smooth winding and unwinding of the metal wire 6 on the winding and unwinding reel 32, a drop wheel retractor principle is adopted, and a wire-following assembly is provided below the winding and unwinding reel 32. Specifically, the line assembly comprises a threaded shaft 43 extending in the same direction as the rotating shaft of the take-up and pay-off winch 32, one end of the threaded shaft 43 is rotationally connected with the motor mounting plate 31, and the other end of the threaded shaft is rotationally connected with a vertically arranged line assembly mounting plate 4. The threaded shaft 43 is provided with a line-guiding device 44 in threaded fit with the threaded shaft, and a line-guiding channel for the metal cable 6 to pass through is vertically arranged on one side of the line-guiding device 44 away from the threaded shaft 43. Through the rotation of the threaded shaft 43, the line following device 44 can move along the axial direction of the threaded shaft 43 in the winding and unwinding processes of the winding and unwinding winch 32, so that the phenomenon of wire collapse and wire overlapping of the metal cable 6 in the winding and unwinding processes is avoided, and the situation that the winding and unwinding winch 32 is blocked is avoided.

In order to further guide the movement of the line guide 44, a guide rod 45 extending in the same direction as the screw shaft 43 and penetrating the line guide 44 is further provided on one side of the screw shaft 43, and both ends of the guide rod 45 are connected to the motor mounting plate 31 and the line guide assembly mounting plate 4, respectively.

In the present embodiment, the winding and unwinding process of the winding and unwinding winch 32 is synchronized with the axial movement of the wire follower 44 on the threaded shaft 43. The line assembly mounting plate 4 is provided with a driving gear 41 which can axially rotate and is in transmission connection with the axle center of the take-up and pay-off winch 32, and the line assembly mounting plate 4 is also provided with a driven gear 42 which can axially rotate and is in transmission connection with the end part of the threaded shaft 43. The driving gear 41 is engaged with the driven gear 42. By such a design, the screw shaft 43 and the take-up and pay-off winch 32 can be rotated synchronously, so that the line straightener 44 can reciprocate on the screw shaft 43 synchronously during the take-up and pay-off process of the metal cable 6.

In this device, with respect to the specific structure of the fixing base 1, the fixing base 1 includes a fixing base housing 16 which is vertically arranged and has a tubular structure. The fixing plate 11 is horizontally arranged at the upper end of the fixing seat shell 16, and the fixing installation of the fixing seat 1 can be realized through the fixing bolts on the fixing plate 11. In addition, for installing the rest parts in the fixing seat 1, the controller installing plate 12 and the winding assembly installing plate 13 are horizontally installed in the fixing seat shell 16 in sequence from top to bottom. Specifically, the controller 2 is arranged on the upper plate surface of the controller mounting plate 12, and the take-up and pay-off mechanism is arranged between the controller mounting plate 12 and the winding assembly mounting plate 13. The upper and lower edges of the motor mounting plate 31 are fixedly connected, such as welded, to the controller mounting plate 12 and the take-up assembly mounting plate 13, respectively. Meanwhile, in order to avoid blocking the metal cable 6, the winding assembly mounting plates 13 on both sides of the motor mounting plate 31 are provided with wire passing openings 61 through which the metal cable 6 passes.

In this embodiment, in order to connect the controller 2 and the permanent magnet motor 3 with an external power source, two wiring through-hole pipes 15 corresponding to the controller 2 and the permanent magnet motor 3 are provided on the side wall of the fixed seat housing 16.

In this device, with respect to the specific structure of the movable seat 7, the movable seat 7 includes a movable seat housing 74 which is vertically disposed and has a tubular structure. The lower end of the movable seat shell 74 is horizontally provided with an alarm mounting plate 75, and the alarm 9 is fixedly arranged on the alarm mounting plate 75 through bolts. Meanwhile, a pulley block mounting plate 71 is horizontally mounted on the inner wall of the upper part of the movable seat shell 74. The pulley block mounting frame 81 is arranged on the lower plate surface of the pulley block mounting plate 71, and two wire passing openings 61 for the metal cables 6 to pass through are oppositely arranged on the pulley block mounting plate 71.

In addition, an aerial plug 72 electrically connected with the alarm 9 is vertically arranged between the two wire passing ports 61. The lower end surface of the fixed seat 1 is horizontally provided with an aerial plug female head mounting plate 14, and the aerial plug female head mounting plate 14 is vertically provided with an aerial plug female head 5 which is in quick plug fit with the aerial plug male head 72 and is electrically connected with the controller 2. By means of the design, the power supply of the permanent magnet motor 3 and the power supply of the alarm 9 can be interlocked through cooperation of the power supply change-over switch in the controller 2, namely, when the aviation plug male 72 and the aviation plug female 5 are disconnected, the power supply of the alarm 9 is cut off, and when the alarm 9 works, namely, when the aviation plug male 72 and the aviation plug female 5 are plugged, the power supply of the winding and unwinding mechanism is cut off. Therefore, the aerial plug male head 72 and the aerial plug female head 5 in the lifting process are powered off, the quick plug aerial plug is disconnected, no spark is generated during the plug-in process, and the safety of the equipment is improved.

The pins of the aerial plug adopt gold-plated spring ejector pins and gold-plated contacts, so that good contact between the aerial plug male head 72 and the aerial plug female head 5 is ensured. Simultaneously, plug junction is provided with inside and outside two silica gel sealing washer. And the permanent magnet motor 3 adopts a torque control mode, so that the sealing ring has enough tension to ensure that the joint of the plugs is well sealed after each time the plug is inserted in place. In addition, the winding and unwinding winch 32 in the device adopts a flexible belt wheel mechanism as a transmission link, so that after the plug is inserted into the socket, mechanical and electrical interfaces are not damaged when tension is overloaded in time.

In this embodiment, in order to guide the insertion and matching between the male plug 72 and the female plug, the upper plate surfaces of the pulley block mounting plates 71 on both sides of the male plug 72 are vertically provided with positioning guide posts 73, and the female plug mounting plate 14 is provided with guide sockets 52 which are in quick insertion and matching with the positioning guide posts 73. Furthermore, in order to avoid blocking the metal cable 6, the female terminal mounting plates 14 on both sides of the female terminal 5 are also provided with wire passing openings 61 through which the metal cable 6 passes.

It should be noted that:

In order to make the controller 2 know the distance between the fixed seat 1 and the movable seat 7 in time, a proximity switch 51 electrically connected with the controller 2 is arranged on the lower plate surface of the avionics female head mounting plate 14.

The utility model has been described in connection with the preferred embodiments, but the utility model is not limited to the embodiments disclosed above, but it is intended to cover various modifications, equivalent combinations according to the essence of the utility model.

Claims

1. The utility model provides an alarm device that can go up and down automatically, its characterized in that, including fixing base (1), fixing base (1) below is hung through metal cable (6) that can receive and release vertically and is equipped with movable seat (7), alarm (9) have been set firmly to movable seat (7) lower terminal surface, be equipped with in fixing base (1) and be used for receiving, releasing wire (6) receive and releases wire mechanism, still be equipped with in fixing base (1) can control receive and release wire mechanism operation's controller (2).

2. The alarm device capable of automatically lifting according to claim 1, wherein the wire winding and unwinding mechanism comprises a motor mounting plate (31) vertically arranged in a fixed seat (1), a wire winding and unwinding winch (32) capable of vertically rotating is arranged on one side plate surface of the motor mounting plate (31), and a permanent magnet motor (3) with an output end in transmission connection with the rotation axis of the wire winding and unwinding winch (32) is arranged on the other side plate surface, wherein the permanent magnet motor (3) is electrically connected with a controller (2);

The pulley block mounting frame (81) is arranged in the movable seat (7), the pulley block mounting frame (81) is provided with a pulley block (8) capable of vertically rotating, one end of the metal cable (6) is fixedly connected to the wire winding and unwinding winch (32), and the other end of the metal cable bypasses the pulley block (8) and is fixedly connected with the fixed seat (1).

3. The alarm device capable of automatically lifting according to claim 2, wherein a line-following assembly is arranged below the wire winding winch (32), the line-following assembly comprises a threaded shaft (43) extending in the same direction as the rotating shaft of the wire winding winch (32), one end of the threaded shaft (43) is rotationally connected with the motor mounting plate (31), and the other end of the threaded shaft is rotationally connected with a vertically arranged line-following assembly mounting plate (4);

The wire guide device is characterized in that a wire guide device (44) in threaded fit with the wire guide device is arranged on the threaded shaft (43), a wire passing channel for a metal cable (6) to pass through is vertically arranged on one side, away from the threaded shaft (43), of the wire guide device (44), a guide rod (45) extending in the same direction and penetrating through the wire guide device (44) in an active mode is further arranged on one side of the threaded shaft (43), and two ends of the guide rod (45) are respectively connected with the motor mounting plate (31) and the wire guide assembly mounting plate (4).

4. An automatically liftable alarm device according to claim 3, wherein the assembly mounting plate (4) is provided with a driving gear (41) capable of rotating axially and in transmission connection with the axle center of the take-up and pay-off winch (32), the assembly mounting plate (4) is also provided with a driven gear (42) capable of rotating axially and in transmission connection with the end part of the threaded shaft (43), and the driving gear (41) is in meshed connection with the driven gear (42).

5. The alarm device capable of automatically lifting according to claim 2, wherein the fixed seat (1) comprises a fixed seat shell (16) which is vertically arranged and is of a tubular structure, a fixed plate (11) is horizontally arranged at the upper end of the fixed seat shell (16), and a controller mounting plate (12) and a winding assembly mounting plate (13) are horizontally arranged in the fixed seat shell (16) from top to bottom in sequence;

The controller (2) is arranged on the upper plate surface of the controller mounting plate (12), the take-up and pay-off mechanism is arranged between the controller mounting plate (12) and the winding component mounting plate (13), the upper edge and the lower edge of the motor mounting plate (31) are fixedly connected with the controller mounting plate (12) and the winding component mounting plate (13) respectively, and wire passing ports (61) for the metal cables (6) to pass through are formed in the winding component mounting plates (13) on two sides of the motor mounting plate (31).

6. The alarm device capable of automatically lifting according to claim 5, wherein two wiring passing pipes (15) corresponding to the controller (2) and the permanent magnet motor (3) are arranged on the side wall of the fixed seat shell (16).

7. The alarm device capable of automatically lifting according to claim 2, 5 or 6, wherein the movable seat (7) comprises a movable seat shell (74) which is vertically arranged and is of a tubular structure, an alarm mounting plate (75) is horizontally arranged at the lower end of the movable seat shell (74), a pulley block mounting plate (71) is horizontally arranged on the inner wall of the upper part of the movable seat shell (74), the pulley block mounting plate (81) is arranged on the lower plate surface of the pulley block mounting plate (71), and two wire passing ports (61) for a metal cable (6) to pass through are oppositely arranged on the pulley block mounting plate (71).

8. The alarm device capable of automatically lifting according to claim 7, wherein a female aviation plug (72) electrically connected with the alarm device (9) is vertically installed between the two wire passing ports (61), a female aviation plug mounting plate (14) is horizontally installed on the lower end face of the fixed seat (1), female aviation plug (5) which is in quick insertion fit with the male aviation plug (72) and is electrically connected with the controller (2) is vertically arranged on the female aviation plug mounting plate (14), and the wire passing ports (61) for the metal cables (6) to pass through are formed in the female aviation plug mounting plates (14) on two sides of the female aviation plug (5).

9. The alarm device capable of automatically lifting according to claim 8, wherein positioning guide posts (73) are vertically arranged on upper plate surfaces of pulley block mounting plates (71) on two sides of the aerial plug male head (72), and guide sockets (52) which are in quick-plug fit with the positioning guide posts (73) are arranged on the aerial plug female head mounting plate (14).

10. The automatic lifting alarm device according to claim 8, wherein a proximity switch (51) electrically connected with the controller (2) is arranged on the lower plate surface of the aviation plug mounting plate (14).