Safety belt suspension device and safety warning method

Abstract

The present application relates to the technical fields of power safety operation, and discloses a safety belt hanging device and a safety warning method, the safety belt hanging device comprising a fixed base, an insulating ladder and a hanging rack; two groups of fixed bases are arranged at intervals, and each of the two groups of fixed bases is provided with an insulating ladder; the top ends of the two groups of insulating ladders are connected with the hanging rack; the hanging rack comprises a horizontal suspension rod and a supporting rod, and the horizontal suspension rod is used for hanging the safety belt; the safety belt hanging device further comprises a safety warning system arranged between the top ends of the two groups of insulating ladders, and the safety warning system comprises a camera device, an image processor, a controller and an audible and visual alarm device. The insulating ladder, the fixed base and the hanging rack form a gantry type structure as a whole, thereby increasing the stability of the whole hanging device and preventing the hanging rack from toppling over; the whole section of the horizontal suspension rod can be used for hanging the safety belt, and the operation personnel do not need to manually adjust the safety belt hanging position, thereby eliminating the risk of losing the protection of the safety belt; when the safety belt is not worn, the controller controls the audible and visual alarm device to alarm, thereby ensuring the safety of operation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric power safety operation, in particular to a safety belt suspension device and a safety warning method. BACKGROUND

[0002] The safety belt is an individual protective equipment for preventing the person from falling or safely suspending the person after falling during high-altitude operation, and the safety belt needs to be correctly used during high-altitude operation in a substation. With the expansion of the substation, the number of equipment with a height greater than 1.5 meters in the substation increases, and the correct use of the safety belt during high-altitude operation becomes a key supervision content of safe operation. When working on a scaffold without a handrail or a scaffold without a handrail, the safety belt should be used when the height is greater than 1.5 meters.

[0003] The safety belt needs to be hung in a high-low way on a firm hanging point to reduce the risk of falling of the operator during high-altitude operation. However, when performing high-altitude operation on the top of a switch cabinet with a height greater than 2 meters in a substation, a special safety belt hanging point is needed to be installed for the high-low use of the safety belt. The existing safety belt suspension device is not specially designed for high-altitude operation of the switch cabinet, and the suspension device needs to be matched with an insulating ladder during use. In the case that the placement positions of the two are not suitable, the operator cannot easily perform high-altitude operation.

[0004] A telescopic safety belt hook support is disclosed in a Chinese utility model patent with the authorized announcement number CN204864614U, which comprises a fixed support table, a lower support column, an upper support column and a crossbeam. The lower support column is hollow inside, and the lower end of the lower support column is connected with the fixed support table. The lower end of the upper support column is sleeved into the inside of the lower support column from the upper end of the lower support column. One end of the crossbeam is connected with the upper end of the upper support column. A hanging ring is arranged on the top of the upper support column. A hook is welded on the crossbeam. At least two through holes are arranged on the upper support column. One through hole is arranged on the upper end of the lower support column. A fixed bolt passes through the through holes of the lower support column and the upper support column to fixedly connect the upper support column and the lower support column together.

[0005] The safety belt hook support described above adopts a "factory" shaped structure, and the whole support is supported by one side, so that the stability is insufficient, and the support may be tilted when the weight of the fixed support table is insufficient. Meanwhile, the hook is fixed on the crossbeam by welding, and is a fixed suspension point. The operator needs to constantly adjust the position of the safety belt suspension when moving, and the operator may be unprotected for a short time when adjusting the suspension position. SUMMARY

[0006] The purpose of the present application is to provide a safety belt suspension device to solve the problems that the safety belt hook support in the prior art has a risk of tilting, and the operator has a risk of being unprotected for a short time when adjusting the position. The present application also provides a safety warning method.

[0007] In order to achieve the above object, the application provides a safety belt hanging device, comprising a fixed base, an insulating ladder and a hanging rack;

[0008] The fixed base is arranged in two groups, the insulating ladders are arranged on the two groups of fixed bases, the hanging racks are connected between the top ends of the two groups of insulating ladders, and the fixed base, the insulating ladders and the hanging racks form a gantry type structure.

[0009] The hanging rack comprises a horizontal suspension rod and support rods arranged at both ends of the horizontal suspension rod, the bottom ends of the two groups of support rods are connected to the insulating ladders one by one, and the horizontal suspension rod is used for suspending a safety belt.

[0010] The safety warning system arranged between the top ends of the two groups of insulating ladders is further included, the safety warning system comprises a camera device, an image processor, a controller and an audible and visual alarm device, and the camera device, the image processor and the audible and visual alarm device are signal connected to the controller.

[0011] Preferably, the top end of the insulating ladder is provided with a sleeve, the bottom end of the support rod is inserted into the sleeve, and the sleeve and the insulating ladder and the sleeve and the support rod are connected through a bolt.

[0012] Preferably, the fixed base is provided with a sleeve and an inclined support used for supporting the sleeve obliquely, the bottom end of the insulating ladder is inserted into the sleeve, and the sleeve is further provided with a bolt used for fixing the insulating ladder.

[0013] Preferably, a fixing rod is further connected between the top ends of the two groups of insulating ladders, and the fixing rod is arranged in parallel with the horizontal suspension rod.

[0014] Preferably, the bottom of the fixed base is provided with a pulley, and the fixed base is further rotatably provided with a supporting leg, the supporting leg has a supporting state of supporting on the ground to prevent the pulley from rotating and a storage state of leaving the ground to make the pulley rotate in a rotating stroke.

[0015] Preferably, the supporting leg comprises a rotating frame and a supporting leg body, the fixed base is provided with a hinged seat, the supporting leg body is arranged at the front end of the rotating frame, the rear end of the rotating frame is hinged to the hinged seat, and a limiting structure for limiting the rotating frame is further arranged between the hinged seat and the rotating frame.

[0016] Preferably, the limiting structure comprises a first limiting hole and a second limiting hole arranged on the hinged seat, a through hole arranged on the rotating frame, and a limiting bolt, the first limiting hole is located at the rear side of the hinged shaft of the hinged seat, the second limiting hole is located at the lower side of the hinged shaft of the hinged seat, the through hole is coaxial with the first limiting hole when the rotating frame rotates to the supporting state, and the through hole is coaxial with the second limiting hole when the rotating frame rotates to the storage state.

[0017] The application further provides a safety warning method, which adopts the safety belt hanging device in any of the above technical solutions and comprises the following steps.

[0018] S1, a picture containing both sides of the top of a switch cabinet and a horizontal suspension rod of a hanger is acquired in real time on a camera device, and the picture is sent to an image processor;

[0019] S2, the image processor identifies the number of people performing high-altitude operation on an insulating ladder Nr and the number of safety belts hung on the horizontal suspension rod Ng, and sends the two data to a controller;

[0020] S3, the controller judges whether Nr is same as Ng, if Nr=Ng, returns to step S1, if Nr>Ng, the controller sends an alarm signal to an audible and light alarm device, and enters step S4;

[0021] S4, the audible and light alarm device performs audible and light alarm, and then returns to step S1 to perform circulation.

[0022] Preferably, in step S4, the time used for the audible and light alarm device to start alarm in steps S1 to S4 is defined as Tt, and the duration of the audible and light alarm device to continuously send audible and light alarm is defined as Ta, and Ta>Tt.

[0023] Preferably, in step S2, the image processor takes the safety cap of the operating personnel and the safety belt hook on the horizontal suspension rod as characteristic quantities to judge the number of people performing high-altitude operation Nr and the number of safety belts hung on the horizontal suspension rod Ng.

[0024] Compared with the prior art, the safety belt suspension device and the safety warning method have the beneficial effects that two groups of insulating ladders are fixed on the fixed base, the two groups of insulating ladders, the fixed base and the hanging rack form a gantry type structure as a whole, the stability of the whole suspension device is increased in the form of multi-point support, and the hanging rack is prevented from toppling; the horizontal suspension rod of the hanging rack is connected with the insulating ladders through the support rods at two ends, the whole section of the horizontal suspension rod can be used to suspend the safety belt, the structure such as hooks is cancelled, the support rods at two ends can limit the safety belt, the safety belt can freely move on the horizontal suspension rod along with the movement of the operating personnel, and the operating personnel do not need to manually adjust the suspension position of the safety belt, so that the risk of losing the protection of the safety belt when adjusting the suspension position is eliminated; the safety warning system is arranged between the two insulating ladders, the image signal of the operating personnel is acquired by using the camera equipment, the image signal is processed by using the image processor and a signal readable by the controller is formed, the controller controls the sound and light alarm equipment to alarm when the operating personnel do not wear the safety belt, and the safety of operation is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a structural schematic view of the safety belt suspension device of the present application;

[0026] Figure 2 is Figure 1 is an enlarged structural schematic view of the leg of the safety belt suspension device of

[0027] Figure 3 is Figure 1 is an assembly schematic view of the support rod and the insulating ladder of the safety belt suspension device of

[0028] Figure 4 is a structural schematic view of the leg of the safety belt suspension device of the present application in a storage state;

[0029] Figure 5 is a flow chart of the safety warning method of the present application.

[0030] In the drawings, 1 is a fixed base, 2 is an insulating ladder, 3 is a hanging rack, 31 is a support rod, 32 is a horizontal suspension rod, 4 is a safety warning system, 5 is a sleeve, 6 is a bolt, 7 is a sleeve, 8 is a diagonal brace, 9 is a fixed rod, 10 is a mounting plate, 11 is a pulley, 12 is a leg, 13 is a leg body, 14 is a rotating frame, 15 is a hinge seat, 16 is a first limiting hole, 17 is a second limiting hole, 18 is a limiting bolt, and 19 is a switch cabinet. DETAILED DESCRIPTION

[0031] The specific embodiments of the present application will be further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the present application, but are not used to limit the scope of the present application.

[0032] A preferred embodiment of a safety belt hanging device of the present application, as shown in Figures 1 to 4 The safety belt hanging device comprises a fixed base 1, an insulating ladder 2, a hanging rack 3 and a safety warning system 4. The fixed base 1 is arranged on the ground to support and fix the whole device. The insulating ladder 2 is used for workers to climb to a high place for work. The hanging rack 3 is used for workers to hang safety belts to meet the needs of high-altitude work.

[0033] The fixed base 1 comprises two groups of fixed bases 1 arranged at intervals. The two groups of fixed bases 1 form a containing space for accommodating a switch cabinet 19. After the operator climbs up the insulating ladder 2, the operator can work on the top of the switch cabinet 19 between the two groups of fixed bases 1. The two groups of fixed bases 1 are arranged symmetrically and have the same specific structure. The fixed base 1 is made of steel structure to improve the structural strength of the fixed base 1.

[0034] The two groups of fixed bases 1 are provided with the insulating ladders 2. The bottom end of the insulating ladder 2 is connected with the fixed base 1, and the top end of the insulating ladder 2 is connected with the hanging rack 3. The insulating ladder 2 is used to raise the working height of the worker. The worker can stand on the insulating ladder 2 to work at a high altitude. The two groups of insulating ladders 2 have the same structure. The specific structure of the insulating ladder 2 is the prior art, which is not described in detail here.

[0035] The top ends of the two groups of insulating ladders 2 are connected with the hanging rack 3. The fixed base 1, the insulating ladder 2 and the hanging rack 3 form a gantry type structure. When working on the top of the switch cabinet 19, the switch cabinet 19 is located below the hanging rack 3. The two ends of the hanging rack 3 are supported by the insulating ladders 2 and the fixed bases 1. The stability of the whole hanging rack 3 is increased by multi-point support, which can avoid tilting when the worker moves to one end of the hanging rack 3.

[0036] The hanging rack 3 comprises a horizontal suspension rod 32 and a support rod 31. The support rod 31 is arranged at both ends of the horizontal suspension rod 32. The axial ends of the horizontal suspension rod 32 are connected with the support rod 31. The horizontal suspension rod 32 and the two support rods 31 form a gantry type structure to increase the structural strength of the whole hanging rack 3. The bottom ends of the two groups of support rods 31 are connected with the two groups of insulating ladders 2 one by one. The two groups of insulating ladders 2 support the support rods 31 to improve the stability of the device. In this embodiment, the horizontal suspension rod 32 and the support rod 31 are made of insulating material to reduce the risk of electric shock.

[0037] The horizontal suspension rod 32 is used for suspending the safety belt, the horizontal suspension rod 32 is arranged horizontally as a whole, the support rod 31 is arranged vertically, no fixed hanging ring, hook 32 or the like structure is arranged on the horizontal suspension rod 32, the whole section of the horizontal suspension rod 32 can be used for suspending the safety belt, and the safety belt is limited by the vertical support rod 31 at both ends, the free movement of the safety belt in the whole section of the horizontal suspension rod 32 is ensured, and the safety belt can freely move on the horizontal suspension rod 32 along with the movement of the operator, and the operator does not need to manually adjust the safety belt suspension position.

[0038] The safety warning system 4 is arranged between the top ends of the two groups of insulating ladders 2, and includes a camera device, an image processor, a controller and an audible and light alarm device. The camera device, the image processor and the audible and light alarm device are signal connected with the controller. The safety warning system 4 is used for detecting the safety belt wearing condition of the operator, and alarms through the audible and light alarm device when the safety belt is not worn, so as to improve the safety of the operation.

[0039] When the safety warning system 4 works, the camera device is used for collecting the pictures of the insulating ladders 2 on both sides of the open light cabinet and the horizontal suspension rod 32 of the hanging frame 3 in real time, and transmits the picture signals to the image processor; the image processor identifies the number of people performing high-altitude operation on the insulating ladder 2 and the number of safety belts suspended on the horizontal suspension rod 32 through a mature image processing algorithm, and sends the two data to the controller.

[0040] The controller judges whether the number of people performing high-altitude operation on the insulating ladder 2 is same as the number of safety belts suspended on the horizontal suspension rod 32, when the number of safety belts is less than the number of people performing high-altitude operation, it is indicated that there is an operator who does not wear a safety belt, the controller transmits an alarm signal to the audible and light alarm device, the audible and light alarm device alarms, reminding the operator to wear a safety belt safely, so as to improve the safety of high-altitude operation.

[0041] In the embodiment, the image processor adopts a mature image recognition algorithm such as convolutional neural network (CNN) and support vector machine (SVM) to train the photos of the operators on the top of the switch cabinet 19 and the safety belt hooks 32 on the horizontal suspension rod 32, and takes the safety hat of the operator and the safety belt hook 32 on the horizontal suspension rod 32 as a feature quantity. After obtaining the trained model, the image processor can use the model to perform image recognition on the photos taken on site, the number of safety hats recognized is the number of operators, and the number of safety belt hooks 32 on the horizontal suspension rod 32 recognized is the number of safety belts.

[0042] The fixing base 1 of the safety belt hanging device is fixed with two groups of insulating ladders 2, the two groups of insulating ladders 2, the fixing base 1 and the hanging frame 3 form a gantry type structure as a whole, the stability of the whole hanging device is increased in the form of multi-point support, and the hanging frame 3 is prevented from toppling; the horizontal suspension rod 32 of the hanging frame 3 is connected with the insulating ladders 2 through the support rods 31 at two ends, the whole section of the horizontal suspension rod 32 can hang the safety belt, the structure such as the hook 32 is cancelled, the support rods 31 at two ends can limit the safety belt, the safety belt can freely move on the horizontal suspension rod 32 along with the movement of the operating personnel, and it is not necessary for the operating personnel to manually adjust the safety belt hanging position, so that the risk of losing the safety belt protection when the hanging position is adjusted is eliminated; the safety warning system 4 is also arranged between the two insulating ladders 2, the image signal of the operating personnel is acquired by using the camera equipment, the image signal is processed by using the image processor and a signal readable by the controller is formed, the controller controls the sound and light alarm equipment to alarm when the operating personnel does not wear the safety belt, and the safety of operation is ensured.

[0043] Preferably, the top end of the insulating ladder 2 is provided with a sleeve 5, the bottom end of the support rod 31 is inserted into the sleeve 5, and the sleeve 5 is connected with the insulating ladder 2 and the support rod 31 through the bolt 6.

[0044] The top end of the insulating ladder 2 and the bottom end of the support rod 31 are connected through the sleeve 5, the insulating ladder 2 and the support rod 31 are fixed by using the bolt 6, the insulating ladder 2 and the hanging frame 3 are integrally installed, and the high-altitude operation of the operating personnel is facilitated. The bolt 6 and the sleeve 5 are used to fixedly connect the insulating ladder 2 and the support rod 31, and the assembly mode of the hanging frame 3 is also simplified.

[0045] Preferably, the fixing base 1 is provided with a sleeve 7 and an inclined support 8 used for obliquely supporting the sleeve 7, the bottom end of the insulating ladder 2 is inserted into the sleeve 7, and the sleeve 7 is further provided with the bolt 6 used for fixing the insulating ladder 2.

[0046] The sleeve 7 is used for placing the insulating ladder 2, the sleeve 7 bolt 6 can fix the bottom of the insulating ladder 2, and the insulating ladder 2 is prevented from separating from the sleeve 7. The inclined support 8 is welded and fixed between the two sides of each sleeve 7 and the fixing base 1, the sleeve 7 is stabilized, and the stability of the insulating ladder 2 is increased.

[0047] Preferably, the top ends of the two groups of insulating ladders 2 are further connected with a fixing rod 9, and the fixing rod 9 is arranged in parallel and at intervals with the horizontal suspension rod 32.

[0048] The fixing rod 9 is arranged in parallel and at intervals with the insulating ladder 2, so that the top ends of each group of insulating ladders 2 are connected as a whole, the fixing rod 9, the hanging frame and the insulating ladder 2 form a whole, the force of the insulating ladder 2 is balanced, and the insulating ladder 2 is prevented from being deflected because the horizontal suspension rod 32 is located on one side of the insulating ladder 2.

[0049] In the embodiment, the mounting plate 10 is arranged on the fixed rod 9, and the safety warning system 4 is fixedly arranged on the mounting plate 10. The safety warning system 4 is located at the top of the switch cabinet 19, and is convenient for collecting images of the operating personnel on both sides of the top of the switch cabinet 19 and the safety belt on the horizontal suspension rod 32.

[0050] Preferably, the bottom of the fixed base 1 is provided with the pulley 11, and the fixed base 1 is further rotatably provided with the supporting leg 12. The supporting leg 12 has a supporting state of being supported on the ground to prevent the pulley 11 from rotating and a storage state of being away from the ground to enable the pulley 11 to rotate in a rotating stroke.

[0051] The bottom of each group of fixed bases 1 is arranged with four groups of pulleys 11, which are used to move the fixed base 1 and change the position of the safety belt suspension device. The supporting leg 12 is rotatably arranged on the fixed base 1. When the supporting leg 12 is rotated to the supporting state, the fixed base 1 can be supported, the stability of the fixed base 1 is increased, the pulley 11 is prevented from moving, and the operating personnel can work in the air conveniently. When the supporting leg 12 is rotated to the storage state, the pulley 11 is supported on the ground, and the operating personnel can move and change the position of the fixed base 1.

[0052] Preferably, the supporting leg 12 comprises a rotating frame 14 and a supporting leg body 13, and the fixed base 1 is provided with a hinged seat 15. The supporting leg body 13 is arranged at the front end of the rotating frame 14, the rear end of the rotating frame 14 is hinged to the hinged seat 15, and the hinged seat 15 is further provided with a limiting structure for limiting the rotating frame 14.

[0053] The rotating frame 14 is hinged to the hinged seat 15 of the fixed base 1. When the rotating frame 14 rotates, the position of the supporting leg body 13 can be changed, and the supporting leg body 13 is adjusted to be supported on the ground or away from the ground, so that the supporting leg 12 changes between the supporting state and the storage state. The limiting structure can limit the position of the rotating frame 14, so that the rotating frame 14 is prevented from rotating when the operating personnel works.

[0054] In the embodiment, the supporting leg body 13 and the rotating frame 14 are connected by threads. By rotating the supporting leg body 13, the height of the supporting leg body 13 can be adjusted, which is suitable for use in the condition that the ground is uneven.

[0055] Preferably, the limiting structure comprises a first limiting hole 16 and a second limiting hole 17 arranged on the hinged seat 15, a through hole arranged on the rotating frame 14, and a limiting bolt 18. The first limiting hole 16 is located at the rear side of the hinged shaft of the hinged seat 15, the second limiting hole 17 is located at the lower side of the hinged shaft of the hinged seat 15, the through hole is coaxial with the first limiting hole 16 when the rotating frame 14 rotates to the supporting state, and the through hole is coaxial with the second limiting hole 17 when the rotating frame 14 rotates to the storage state.

[0056] The first limiting hole 16, the second limiting hole 17 and the hinge shaft of the hinge seat 15 form an angle of 90 degrees, so that the rotating frame 14 rotates within a range of 90 degrees. When the rotating frame 14 rotates to the supporting state, the through hole is coaxial with the first limiting hole 16, the limiting bolt 18 is arranged in the through hole and the first limiting hole 16, the rotating frame 14 is connected with the hinge seat 15, and the rotating frame 14 is kept in the supporting state. When the rotating frame 14 rotates to the storage state, the through hole is coaxial with the second limiting hole 17, the limiting bolt 18 is arranged in the through hole and the second limiting hole 17, the rotating frame 14 is connected with the hinge seat 15, and the rotating frame 14 is kept in the storage state.

[0057] The first limiting hole 16, the second limiting hole 17, the through hole and the limiting bolt 18 form a limiting structure, so that the rotating position of the rotating frame 14 is limited, the assembly form of the limiting structure is simplified, and the operation of the operator is facilitated.

[0058] The application further provides a safety warning method, as shown in the drawings. Figure 5 The safety belt hanging device in any one of the above embodiments is used, and the method comprises the following steps.

[0059] S1, a picture containing both sides of the top of the switch cabinet 19 and the horizontal suspension rod 32 of the hanger 3 is acquired in real time on the camera equipment, and the picture is sent to an image processor;

[0060] S2, the image processor identifies the number of people performing high-altitude operation on the insulating ladder 2 (Nr) and the number of safety belts hung on the horizontal suspension rod 32 (Ng), and sends the two data to a controller;

[0061] S3, the controller judges whether Nr is equal to Ng, if Nr=Ng, returns to step S1, if Nr>Ng, the controller sends an alarm signal to a sound and light alarm device, and enters step S4;

[0062] S4, the sound and light alarm device performs sound and light alarm, and then returns to step S1 to cycle.

[0063] In step S1, there are three groups of camera equipment, and the three groups of camera equipment respectively collect pictures of both sides of the top of the switch cabinet 19 and the horizontal suspension rod 32 of the hanger 3, so as to ensure accurate detection of the number of people performing high-altitude operation and the number of safety belts at the same time.

[0064] In step S3, the controller judges whether the number of people performing high-altitude operation on the insulating ladder 2 is equal to the number of safety belts hung on the horizontal suspension rod 32 by comparison, if Nr-Ng=0, the two numbers are equal, and if Nr-Ng>0, the number of people is greater than the number of safety belts.

[0065] In step S4, the sound and light alarm device receives the alarm signal transmitted by the controller and continuously sends sound and light alarm within a certain time period, so as to remind people to work safely by prolonging the time of sound and light alarm.

[0066] Preferably, in step S4, the time Tt for the audible and visual alarm device to start alarming from step S1 to step S4 is defined, and the duration Ta of the audible and visual alarm device continuously alarming is greater than Tt.

[0067] Setting the time Ta > Tt can ensure that the last audible and visual alarm can last until the next audible and visual alarm device receives the command from the controller, ensuring that the audible and visual alarm continues during the time when the operator has not fastened the safety belt.

[0068] For example, at time t1, the audible and visual alarm device starts alarming. At this time, the safety warning system 4 starts to cycle from step one, and the audible and visual alarm device will receive the command from the controller to start alarming again only at time Tt (i.e. at time t1+Tt). If the duration Tt of the audible and visual alarm device is greater than Ta, the audible and visual alarm device will not alarm during the time period from t1+Ta to t1+Tt, which is a potential safety hazard.

[0069] Preferably, in step S2, the image processor uses the safety helmet of the operator and the safety belt hook 32 on the horizontal suspension rod 32 as a feature quantity to determine the number of operators Nr and the number of safety belts Ng suspended on the horizontal suspension rod 32.

[0070] In this embodiment, the image processor uses mature image recognition algorithms such as convolutional neural network (CNN) and support vector machine (SVM) to train the photos of the operators on the top of the switch cabinet 19 and the safety belts suspended on the horizontal suspension rod 32, using the safety helmet of the operator and the safety belt hook 32 on the horizontal suspension rod 32 as a feature quantity. After obtaining the trained model, the image processor can use the model to perform image recognition on the photos taken on site, and the number of safety helmets recognized is the number of operators, and the number of safety belt hooks 32 on the horizontal suspension rod 32 is the number of safety belts.

[0071] In summary, the safety belt suspension device and safety warning method provided by the embodiment of the present application has the following advantages: two groups of insulating ladders are fixed on the fixed base, the two groups of insulating ladders, the fixed base and the hanging rack form a gantry type structure, the stability of the whole suspension device is increased through the form of multi-point support, and the hanging rack is prevented from toppling; the horizontal suspension rod of the hanging rack is connected with the insulating ladders through the support rods at two ends, the whole horizontal suspension rod can suspend the safety belt, the structure such as hooks is cancelled, the support rods at two ends can limit the safety belt, the safety belt can freely move on the horizontal suspension rod along with the movement of the operator, and the operator does not need to manually adjust the suspension position of the safety belt, so that the risk of losing the protection of the safety belt when adjusting the suspension position is eliminated; the safety warning system is arranged between the two insulating ladders, the image signal of the operator is acquired by using the camera equipment, the image signal is processed by using the image processor and a signal readable by the controller is formed, the controller controls the sound and light alarm equipment to alarm when the operator does not wear the safety belt, and the safety of operation is ensured.

[0072] The above only describes the preferred embodiments of the present application, and it should be noted that those skilled in the art can make several improvements and replacements without departing from the technical principles of the present application, and these improvements and replacements should also be considered as the protection scope of the present application.

Claims

1. A safety warning method using a safety belt hanging device, the safety belt hanging device comprising a fixed base, an insulating ladder and a hanging rack; two groups of the fixed bases are arranged at intervals, the insulating ladders are arranged on the two groups of the fixed bases, the hanging racks are connected between the top ends of the two groups of the insulating ladders, the fixed base, the insulating ladder and the hanging rack form a gantry type structure, the fixed base is arranged on the ground for support, and a containing space for containing a switch cabinet is formed between the two groups of the fixed bases; the hanging rack comprises a horizontal suspension rod and support rods arranged at both ends of the horizontal suspension rod, the bottom ends of the two groups of the support rods are connected to the insulating ladders one by one, and the horizontal suspension rod is used for suspending a safety belt; a pulley is arranged at the bottom of the fixed base, and a supporting leg is rotatably arranged on the fixed base, the supporting leg has a supporting state of supporting on the ground to prevent the pulley from rotating and a storage state of moving away from the ground to enable the pulley to rotate in a rotating stroke; the safety belt hanging device further comprises a safety warning system arranged between the top ends of the two groups of the insulating ladders, the safety warning system comprises a camera device, an image processor, a controller and an audible and visual alarm device, and the camera device, the image processor and the audible and visual alarm device are signal connected to the controller; characterized in that the safety warning method comprises the following steps: S1, the camera device acquires pictures containing the top of the switch cabinet and the horizontal suspension rod of the hanging rack in real time, and sends the pictures to the image processor; S2, the image processor identifies the number of people performing high-altitude work on the insulating ladder Nr and the number of safety belts hung on the horizontal suspension rod Ng, and sends the two data to the controller; S3, the controller determines whether Nr and Ng are the same, if Nr=Ng, returns to step S1, if Nr>Ng, the controller sends an alarm signal to the audible and visual alarm device, and enters step S4; S4, the audible and visual alarm device performs audible and visual alarm, and then returns to step S1 for circulation.

2. The safety warning method of claim 1, wherein, In step S4, the time from the start of the audible and visual alarm device in steps S1 to S4 to the start of the alarm is defined as Tt, and the duration of the audible and visual alarm device continuously sending audible and visual alarm is defined as Ta, and Ta>Tt.

3. The safety warning method of claim 1, wherein, In step S2, the image processor takes the safety helmet of the worker and the safety belt hook on the horizontal suspension rod as the characteristic quantity to determine the number of people performing high-altitude work Nr and the number of safety belts hung on the horizontal suspension rod Ng.

4. The safety warning method according to any one of claims 1-3, characterized in that, The top end of the insulating ladder is provided with a sleeve, the bottom end of the support rod is inserted into the sleeve, and the sleeve and the insulating ladder and the sleeve and the support rod are connected by a bolt.

5. The safety warning method of claim 4, wherein, A sleeve and an inclined support for supporting the sleeve are arranged on the fixed base, the bottom end of the insulating ladder is inserted into the sleeve, and a bolt for fixing the insulating ladder is arranged on the sleeve.

6. The safety warning method according to any one of claims 1 to 3, characterized in that, A fixed rod is further connected between the top ends of the two groups of the insulating ladders, and the fixed rod is arranged in parallel with the horizontal suspension rod at intervals.

7. The safety warning method according to any one of claims 1 to 3, characterized in that, The support leg comprises a rotating frame and a support leg body, a hinge seat is arranged on the fixed base, the support leg body is arranged at the front end of the rotating frame, the rear end of the rotating frame is hinged with the hinge seat, and a limiting structure for limiting the rotating frame is further arranged between the hinge seat and the rotating frame.

8. The safety warning method of claim 7, wherein, The limiting structure comprises a first limiting hole and a second limiting hole arranged on the hinge seat, a through hole arranged on the rotating frame, and a limiting bolt, the first limiting hole is located at the rear side of the hinge shaft of the hinge seat, the second limiting hole is located at the lower side of the hinge shaft of the hinge seat, the through hole is coaxial with the first limiting hole when the rotating frame rotates to a supporting state, and the through hole is coaxial with the second limiting hole when the rotating frame rotates to a storage state.

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