Blasting warning device

Abstract

The utility model discloses a blasting warning device, which relates to the technical field of warning devices and comprises a base body, a lifting component is mounted at the center of the top of the base body, a support plate is fixedly connected to the top of the lifting component, a spraying component is mounted on the upper surface of the support plate, and a warning component is mounted at one end of the support plate. The piston rod and the piston do reciprocating drawing movement in the piston barrel, when the piston rod drives the piston to move towards the top of the piston barrel, negative pressure is generated in the piston barrel, and at the moment, water in the water storage tank enters the piston barrel through the first connecting pipe, and when the piston rod drives the piston to move towards the bottom of the piston barrel, negative pressure is generated in the piston barrel. And water in an extrusion piston cylinder is sprayed out from a spray head through a second connecting pipe to wash the surface of the glass shield, and is matched with a sponge block and a silica gel scraping strip to scrape the surface of the glass shield, so that dust is prevented from being adhered to the surface of the glass shield, and the definition and the monitoring effect of the glass shield are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of warning devices, in particular to a blasting warning device. Background Art

[0002] Blasting is a technology that uses the compression, loosening, destruction, throwing and killing effects produced by the explosion of explosives in air, water, earth and rock media or objects to achieve the desired purpose. When explosive bags or charges explode in earth and rock media or structures, the earth and rock media or structures will be compressed, deformed, destroyed, loosened and thrown. It is mainly used in earth and rock engineering, and the demolition of metal buildings and structures. The scope of research includes: the properties and use of explosives and fire tools, the explosive effect of charges (charges) in various media, contact blasting and non-contact blasting of charges on targets, and the organization and implementation of various blasting operations.

[0003] An existing patent (publication number: CN219758917U) discloses a blasting warning device, which drives a glass shield to rotate through a main gear and a sub-gear by means of a motor, so that an arc-shaped cleaning rod fitted with the glass shield cleans the dust adhered to the glass shield, thereby preventing the dust generated during construction from affecting the clarity of the glass shield and reducing the monitoring effect.

[0004] However, the above technical solution still has certain defects. When blasting, a large amount of dust adheres to the lens of the monitoring device. At this time, the arc-shaped cleaning rod cleans the dust adhered to the glass cover. At the same time, the sponge block is always in a wet state. When wiping the glass cover, the dust with water will adhere to the surface of the glass cover for a long time and cannot be cleaned up in time, resulting in a blind spot in the monitoring device for a period of time, affecting the monitoring effect and causing certain safety hazards. Therefore, a blasting warning device is proposed. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide a blasting warning device to solve the technical problems raised in the above background.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a blasting warning device, comprising a base body, a lifting assembly is installed at the center of the top of the base body, a support plate is fixedly connected to the top of the lifting assembly, a spray assembly is installed on the upper surface of the support plate, a warning assembly is installed at one end of the support plate, the warning assembly includes a warning platform fixedly installed with the support plate by bolts, and a scraping assembly is installed on one side of the bottom of the warning platform;

[0007] The spray assembly includes a second motor fixedly installed on one side of the top of the warning platform, the top of the support plate is fixedly connected to a rotating shaft through a bearing, and the top of the rotating shaft is fixedly connected to a turntable, the output end of the second motor and the outer wall of the rotating shaft are fixedly sleeved with pulleys, and the two sets of pulleys are connected by belt transmission, a movable column is fixedly installed at the edge of the upper surface of the turntable, a movable frame is movably connected to the outer side of the movable column, a piston rod is fixedly connected at the center of one side of the movable frame, a piston is fixedly installed at the other end of the piston rod, a piston is sleeved on the outer side of the piston, and the piston cylinder is fixedly installed on the upper surface of the support plate through a fixed base, a first connecting pipe is fixedly connected to the bottom end of the outer side of the piston cylinder, and the other end of the first connecting pipe is fixedly connected to a water tank, and the water tank is fixedly installed on the side of the upper surface of the support plate away from the warning platform, the bottom end of the piston cylinder is fixedly connected to a second connecting pipe, and the other end of the second connecting pipe extends through to the bottom of the support plate and is fixedly installed with a spray head.

[0008] As a preferred technical solution of the explosion warning device of the utility model, a one-way valve is installed inside one end of the first connecting pipe and the second connecting pipe.

[0009] As an optimal technical solution for a blasting warning device of the utility model, a connecting column is fixedly installed at the center of the top of the inner cavity of the warning platform, and the bottom end of the connecting column is fixedly connected to a lower base plate, and a group of annular grooves are formed between the lower base plate and the bottom of the warning platform, and a rotating camera and a full-time full-color camera are installed at the bottom of the lower base plate. A driven tooth is fixedly sleeved on the outer side of the connecting column through a bearing, and a driving tooth is fixedly sleeved on the output end of the second motor, and the driving tooth is meshed with the driven tooth. A glass shield is fixedly installed on the bottom of the driven tooth, and the glass shield extends to the bottom of the lower base plate through the annular groove, and is sleeved on the outside of the rotating camera and the full-time full-color camera.

[0010] As a preferred technical solution for an explosion warning device of the utility model, the lifting assembly includes a fixed column fixedly installed at the center of the upper surface of the base body, and a first motor is fixedly installed in the inner cavity of the base body directly below the fixed column. The output end of the first motor is fixedly connected to a threaded screw through a coupling, and the threaded screw passes through the base body and the bottom of the fixed column and extends to the inner cavity of the fixed column, and the outer wall of the threaded screw is threadedly connected to a support column, guide grooves are opened on both sides of the inner wall of the fixed column, and guide strips are fixedly installed on both sides of the outer wall of the support column, and the guide strips match the guide grooves, and an explosion-proof sound and light warning light is fixedly installed on the outside of the fixed column.

[0011] As a preferred technical solution of the blasting warning device of the utility model, the explosion-proof sound and light warning light, the rotating camera and the full-time full-color camera are all electrically connected to the controller.

[0012] As an optimal technical solution for a blasting warning device of the utility model, the scraping assembly includes an L-shaped mounting plate fixedly mounted on one side of the bottom end of the warning platform, a fixing box is fixedly mounted on the bottom of the other end of the L-shaped mounting plate, a movable groove is opened inside the fixing box, and a movable block is slidably connected in the movable groove, a plurality of reset springs are fixedly mounted between the movable block and the inner side of the movable groove, two groups of fixed rods are fixedly mounted on the upper and lower ends of the movable block away from the fixed box, an arc plate is fixedly mounted on the other end of the fixed rod, a sponge block is mounted on the side of the arc plate away from the fixed rod, a silicone scraper strip is fixedly mounted on the arc plate on the same side of the sponge block, and the sponge block and the silicone scraper strip are both in contact with the surface of the glass shield.

[0013] As a preferred technical solution of the blasting warning device of the utility model, the nozzle is arranged to be aligned with the glass shield.

[0014] As an optimal technical solution for a blasting warning device of the utility model, universal wheels are installed at the four corners of the bottom of the base body, an L-shaped fixing plate is fixedly connected to one side of the upper surface of the base body by multiple fixing bolts, multiple mounting holes are opened on one side of the upper end of the L-shaped fixing plate, telescopic columns are fixedly installed at the four corners of the upper surface of the support plate, a protective plate is installed on the top of the telescopic column, a buffer spring is sleeved on the telescopic end of the telescopic column, one end of the buffer spring is fixedly connected to the bottom end of the protective plate, and the other end is fixedly connected to the top of the fixed end of the telescopic column.

[0015] In summary, the utility model mainly has the following beneficial effects:

[0016] The utility model starts the second motor, the output end of the second motor rotates, and the belt transmission drives the rotating shaft and the turntable to rotate, thereby driving the movable column to make a circular motion, driving the movable frame to make a horizontal reciprocating motion, and driving the piston rod and the piston to make a reciprocating pulling and pulling motion in the piston cylinder. When the piston rod drives the piston to move toward the top of the piston cylinder, a negative pressure is generated inside the piston cylinder. At this time, water inside the water storage tank enters the piston cylinder through the first connecting pipe. When the piston rod drives the piston to move toward the bottom of the piston cylinder, the water inside the piston cylinder is squeezed and sprayed out from the nozzle through the second connecting pipe to rinse the surface of the glass shield. The sponge block and the silicone scraper are used to scrape the surface of the glass shield to prevent dust from adhering to the surface of the glass shield, thereby ensuring the clarity of the glass shield and the monitoring effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the spray assembly of the utility model;

[0019] Figure 3This is a schematic diagram of the internal structure of the alarm station of the utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the glass shield of the utility model;

[0021] Figure 5 This is a schematic diagram of the scraping component structure of the utility model;

[0022] Figure 6 It is a schematic diagram of the structure of the lifting component of the utility model.

[0023] In the figure: 100, base body; 200, spray assembly; 300, scraping assembly;

[0024] 110, universal wheel; 120, L-shaped fixing plate; 130, lifting assembly; 131, fixing column; 132, first motor; 133, threaded screw; 134, supporting column; 135, guide groove; 136, guide strip; 140, supporting plate; 150, warning assembly; 151, warning platform; 152, connecting column; 153, lower bottom plate; 154, rotating camera; 155, full-time full-color camera; 156, explosion-proof sound and light warning lamp; 157, glass shield; 160, telescopic column; 170, buffer spring; 180, protective plate;

[0025] 210, second motor; 220, driving gear; 230, driven gear; 240, belt; 250, turntable; 260, movable column; 270, movable frame; 280, piston rod; 290, piston; 2910, piston cylinder; 2920, first connecting pipe; 2930, water storage tank; 2940, second connecting pipe; 2950, ​​nozzle;

[0026] 310, L-shaped mounting plate; 320, fixing box; 330, moving block; 340, return spring; 350, fixing rod; 360, arc plate; 370, sponge block; 380, silicone scraper. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0028] The following describes an embodiment of the utility model based on its overall structure.

[0029] A blast warning device, such as Figure 1-6As shown, it includes a base body 100, a lifting assembly 130 is installed at the top center of the base body 100, a support plate 140 is fixedly connected to the top of the lifting assembly 130, a spray assembly 200 is installed on the upper surface of the support plate 140, a warning assembly 150 is installed at one end of the support plate 140, the warning assembly 150 includes a warning platform 151 fixedly installed with the support plate 140 by bolts, and a scraping assembly 300 is installed on one side of the bottom of the warning platform 151; the spray assembly 200 includes a second motor 210 fixedly installed on one side of the top of the warning platform 151, a rotating shaft is fixedly connected to the top of the support plate 140 by a bearing, and a turntable 250 is fixedly connected to the top of the rotating shaft, a pulley is fixedly sleeved on the output end of the second motor 210 and the outer wall of the rotating shaft, the two sets of pulleys are connected by a belt 240, and a movable column 260 is fixedly installed on the edge of the upper surface of the turntable 250. A movable frame 270 is movably connected to the outside of the movable column 260, a piston rod 280 is fixedly connected to the center of one side of the movable frame 270, a piston 290 is fixedly installed on the other end of the piston rod 280, a piston cylinder 2910 is sleeved on the outside of the piston 290, the piston cylinder 2910 is fixedly installed on the upper surface of the support plate 140 through a fixed base, a first connecting pipe 2920 is fixedly connected to the bottom of the outer side of the piston cylinder 2910, the other end of the first connecting pipe 2920 is fixedly connected to a water tank 2930, the water tank 2930 is fixedly installed on the upper surface of the support plate 140 away from the warning platform 151, a second connecting pipe 2940 is fixedly connected to the bottom of the piston cylinder 2910, the other end of the second connecting pipe 2940 extends through the bottom of the support plate 140 and is fixedly installed with a nozzle 2950, ​​and one-way valves are installed inside one end of the first connecting pipe 2920 and the second connecting pipe 2940.

[0030] When the device is working, the second motor 210 is started, and the output end of the second motor 210 rotates, and the belt 240 drives the rotating shaft and the turntable 250 to rotate, thereby driving the movable column 260 to make a circular motion, and driving the movable frame 270 to make a horizontal reciprocating motion, thereby driving the piston rod 280 and the piston 290 to make a reciprocating pulling motion in the piston cylinder 2910. When the piston rod 280 drives the piston 290 to move toward the top of the piston cylinder 2910, a negative pressure is generated inside the piston cylinder 2910. At this time, the water inside the water tank 2930 enters the piston cylinder 2910 through the first connecting pipe 2920. When the piston rod 280 drives the piston 290 to move toward the bottom of the piston cylinder 2910, the water inside the piston cylinder 2910 is squeezed out through the second connecting pipe 2940 and sprayed out from the nozzle 2950 to rinse the surface of the glass shield 157, thereby ensuring the clarity of the glass shield 157 and thus ensuring the monitoring effect.

[0031] Please refer to Figure 3 and 4As shown, a connecting column 152 is fixedly installed at the center of the top of the inner cavity of the warning platform 151, and a lower base plate 153 is fixedly connected to the bottom end of the connecting column 152. A group of annular grooves are formed between the lower base plate 153 and the bottom of the warning platform 151. A rotating camera 154 and a full-time full-color camera 155 are installed at the bottom of the lower base plate 153. A driven tooth 230 is fixedly sleeved on the outer side of the connecting column 152 through a bearing, and a driving tooth 220 is fixedly sleeved on the output end of the second motor 210. The driving tooth 220 is meshed with the driven tooth 230. A glass shield 157 is fixedly installed at the bottom of the driven tooth 230. The glass shield 157 extends to the bottom of the lower base plate 153 through the annular groove, and is sleeved on the outside of the rotating camera 154 and the full-time full-color camera 155. The nozzle 2950 is set to align with the glass shield 157.

[0032] When the rotating camera 154 and the full-time full-color camera 155 are monitoring, the rotating camera 154 and the full-time full-color camera 155 are protected by the provided glass cover 157. At the same time, the output end of the second motor 210 rotates to drive the active gear 220 to rotate, thereby driving the driven gear 230 meshing therewith to rotate, driving the glass cover 157 fixed thereto to rotate, and cooperating with the spray assembly 200 to perform all-round flushing on the surface of the glass cover 157.

[0033] Please refer to Figure 1 and 6 As shown, the lifting assembly 130 includes a fixed column 131 fixedly installed at the center of the upper surface of the base body 100, and a first motor 132 is fixedly installed in the inner cavity of the base body 100 directly below the fixed column 131. The output end of the first motor 132 is fixedly connected to a threaded screw 133 through a coupling. The threaded screw 133 runs through the base body 100 and the bottom of the fixed column 131 and extends to the inner cavity of the fixed column 131, and the outer wall of the threaded screw 133 is threadedly connected to a support column 134. Guide grooves 135 are provided on both sides of the inner wall of the fixed column 131, and guide bars 136 are fixedly installed on both sides of the outer wall of the support column 134. The guide bars 136 match the guide grooves 135, and an explosion-proof sound and light warning light 156 is fixedly installed on the outer side of the fixed column 131. The explosion-proof sound and light warning light 156, the rotating camera 154 and the full-time full-color camera 155 are all electrically connected to the controller.

[0034] In order to adjust the height of the guard platform 151 as needed, the first motor 132 is started, and the output end of the first motor 132 rotates to drive the threaded screw 133 to rotate, and the support column 134 threadedly connected thereto moves up and down, which facilitates the movement of the device after the guard platform 151 is lowered, and can ensure the monitoring effect of the rotating camera 154 and the full-time full-color camera 155 after the guard platform 151 is moved up; the staff starts the device, and when the controller receives an external command, the rotating camera 154 and the full-time full-color camera 155 are started. When an explosion occurs, the controller receives an external command and turns on the explosion-proof sound and light warning light 156 to serve as a warning; the controller, the explosion-proof sound and light warning light 156, the rotating camera 154 and the full-time full-color camera 155 are existing mature technologies and will not be elaborated here.

[0035] Please refer to Figure 2 and 5 As shown, the scraping assembly 300 includes an L-shaped mounting plate 310 fixedly mounted on one side of the bottom end of the warning platform 151, a fixed box 320 is fixedly mounted on the bottom of the other end of the L-shaped mounting plate 310, a movable groove is opened inside the fixed box 320, and a movable block 330 is slidably connected in the movable groove, a plurality of return springs 340 are fixedly mounted between the movable block 330 and the inner side of the movable groove, two groups of fixed rods 350 are fixedly mounted on the upper and lower ends of the movable block 330 away from the fixed box 320, an arc plate 360 ​​is fixedly mounted on the other end of the fixed rod 350, a sponge block 370 is mounted on the side of the arc plate 360 ​​away from the fixed rod 350, a silicone scraper strip 380 is fixedly mounted on the same side of the arc plate 360 ​​as the sponge block 370, and both the sponge block 370 and the silicone scraper strip 380 are in contact with the surface of the glass shield 157.

[0036] The sponge block 370 and the silicone scraper strip 380 are both in contact with the surface of the glass cover 157 to clean the dust stuck on the glass cover 157, thereby ensuring the clarity of the glass cover 157. In order to ensure the cleaning effect of the glass cover 157, a reset spring 340 is provided so that the arc plate 360, the sponge block 370 and the silicone scraper strip 380 are in close contact with the surface of the glass cover 157 under the elastic force of the reset spring 340, thereby ensuring the cleaning effect of the glass cover 157.

[0037] Please refer to Figure 1As shown, universal wheels 110 are installed at the four corners of the bottom of the base body 100, an L-shaped fixing plate 120 is fixedly connected to one side of the upper surface of the base body 100 by multiple fixing bolts, and multiple mounting holes are opened on one side of the upper end of the L-shaped fixing plate 120. Telescopic columns 160 are fixedly installed at the four corners of the upper surface of the support plate 140, a protective plate 180 is installed on the top of the telescopic column 160, and a buffer spring 170 is sleeved on the telescopic end of the telescopic column 160. One end of the buffer spring 170 is fixedly connected to the bottom end of the protective plate 180, and the other end is fixedly connected to the top of the fixed end of the telescopic column 160.

[0038] Before the device is used, the position of the device is moved according to the use requirements by means of the universal wheels 110. After moving to the specified position, holes are drilled into the rock wall, and then the L-shaped fixing plate 120 is firmly fixed to the rock wall by means of expansion bolts, thereby ensuring the stability of the device during use. Considering the need to prevent gravel from damaging the device, a protective plate 180 is provided above the warning platform 151. The protective plate 180 is provided to block falling gravel, and at the same time, the buffer spring 170 is provided in cooperation with the telescopic column 160 for buffering, thereby ensuring the safety of the device and preventing falling gravel from damaging the device.

[0039] When the device is in use, the second motor 210 is started, the output end of the second motor 210 rotates, and the belt 240 drives the rotating shaft and the rotating disk 250 to rotate, thereby driving the movable column 260 to make a circular motion, driving the movable frame 270 to make a horizontal reciprocating motion, thereby driving the piston rod 280 and the piston 290 to make a reciprocating pulling motion in the piston cylinder 2910. When the piston rod 280 drives the piston 290 to move toward the top of the piston cylinder 2910, a negative pressure is generated inside the piston cylinder 2910. When the piston 290 is driven by the piston rod 280 to move toward the bottom of the piston cylinder 2910, the water inside the piston cylinder 2910 is squeezed out through the second connecting pipe 2940 and sprayed out from the nozzle 2950 to wash the surface of the glass shield 157, thereby ensuring the clarity of the glass shield 157 and thus ensuring the monitoring effect. The parts not involved in the device are the same as the prior art or can be implemented by the prior art.

[0040] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A blast warning device, comprising a base body (100), characterized in that: A lifting assembly (130) is installed at the center of the top of the base body (100); a support plate (140) is fixedly connected to the top of the lifting assembly (130); a spray assembly (200) is installed on the upper surface of the support plate (140); a warning assembly (150) is installed at one end of the support plate (140); the warning assembly (150) comprises a warning platform (151) fixedly installed with the support plate (140) by bolts; and a scraping assembly (300) is installed on one side of the bottom of the warning platform (151); The spray assembly (200) comprises a second motor (210) fixedly mounted on one side of the top of the warning platform (151); the top of the support plate (140) is fixedly connected to a rotating shaft via a bearing, and the top of the rotating shaft is fixedly connected to a rotating disk (250); the output end of the second motor (210) and the outer wall of the rotating shaft are both fixedly sleeved with pulleys, and the two sets of pulleys are connected by a belt (240); a movable column (260) is fixedly mounted on the edge of the upper surface of the rotating disk (250); the outer side of the movable column (260) is movably connected to a movable frame (270); a piston rod (280) is fixedly connected to the center of one side of the movable frame (270); and a piston (290) is fixedly mounted on the other end of the piston rod (280). ), the piston (290) is sleeved with a piston cylinder (2910) on the outside, the piston cylinder (2910) is fixedly mounted on the upper surface of the support plate (140) through a fixed base, the outer bottom end of the piston cylinder (2910) is fixedly connected with a first connecting pipe (2920), the other end of the first connecting pipe (2920) is fixedly connected with a water storage tank (2930), the water storage tank (2930) is fixedly mounted on the upper surface of the support plate (140) away from the warning platform (151), the bottom end of the piston cylinder (2910) is fixedly connected with a second connecting pipe (2940), the other end of the second connecting pipe (2940) extends through the bottom of the support plate (140) and is fixedly mounted with a nozzle (2950).

2. A blasting warning device according to claim 1, characterized in that: One-way valves are installed inside one end of the first connecting pipe (2920) and the second connecting pipe (2940).

3. The blasting warning device according to claim 1, characterized in that: A connecting column (152) is fixedly installed at the center of the top of the inner cavity of the guard platform (151), and the bottom end of the connecting column (152) is fixedly connected to a lower base plate (153). A group of annular grooves are formed between the lower base plate (153) and the bottom of the guard platform (151). A rotating camera (154) and a full-time full-color camera (155) are installed at the bottom of the lower base plate (153). A driven tooth (230) is fixedly sleeved on the outer side of the connecting column (152) through a bearing. An active tooth (220) is fixedly sleeved on the output end of the second motor (210). The active tooth (220) is meshed with the driven tooth (230). A glass shield (157) is fixedly installed at the bottom of the driven tooth (230). The glass shield (157) extends to the bottom of the lower base plate (153) through the annular groove and is sleeved on the outside of the rotating camera (154) and the full-time full-color camera (155).

4. The blasting warning device according to claim 1, characterized in that: The lifting assembly (130) comprises a fixed column (131) fixedly mounted at the center of the upper surface of the base body (100); a first motor (132) is fixedly mounted in the inner cavity of the base body (100) directly below the fixed column (131); an output end of the first motor (132) is fixedly connected to a threaded screw (133) through a coupling; the threaded screw (133) passes through the base body (100) and the bottom of the fixed column (131) and extends to the inner cavity of the fixed column (131); and an outer wall of the threaded screw (133) is threadedly connected to a support column (134); guide grooves (135) are provided on both sides of the inner wall of the fixed column (131); guide bars (136) are fixedly mounted on both sides of the outer wall of the support column (134); the guide bars (136) match the guide grooves (135); and an explosion-proof sound and light warning light (156) is fixedly mounted on the outer side of the fixed column (131).

5. A blasting warning device according to claim 4, characterized in that: The explosion-proof sound and light warning light (156), the rotating camera (154) and the full-time full-color camera (155) are all electrically connected to the controller.

6. The blasting warning device according to claim 3, characterized in that: The scraping assembly (300) comprises an L-shaped mounting plate (310) fixedly mounted on one side of the bottom end of the warning platform (151); a fixing box (320) is fixedly mounted on the bottom of the other end of the L-shaped mounting plate (310); a moving groove is provided inside the fixing box (320); a moving block (330) is slidably connected in the moving groove; a plurality of return springs (340) are fixedly mounted between the moving block (330) and the inner side of the moving groove; the moving block (330) is moved away from the fixing box ( Two groups of fixing rods (350) are fixedly installed at the upper and lower ends of one side of the glass cover (157), and an arc plate (360) is fixedly installed at the other end of the fixing rod (350). A sponge block (370) is installed on the side of the arc plate (360) away from the fixing rod (350). A silicone scraper (380) is fixedly installed on the same side of the arc plate (360) as the sponge block (370). Both the sponge block (370) and the silicone scraper (380) are in contact with the surface of the glass cover (157).

7. The blasting warning device according to claim 1, characterized in that: The spray head (2950) is aligned with the glass shield (157).

8. The blasting warning device according to claim 1, characterized in that: Universal wheels (110) are installed at the four corners of the bottom of the base body (100); an L-shaped fixing plate (120) is fixedly connected to one side of the upper surface of the base body (100) by means of a plurality of fixing bolts; a plurality of mounting holes are provided on one side of the upper end of the L-shaped fixing plate (120); telescopic columns (160) are fixedly installed at the four corners of the upper surface of the support plate (140); a protective plate (180) is installed on the top of the telescopic column (160); a buffer spring (170) is sleeved at the telescopic end of the telescopic column (160); one end of the buffer spring (170) is fixedly connected to the bottom end of the protective plate (180), and the other end is fixedly connected to the top of the fixed end of the telescopic column (160).

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