Post-disaster chemical place decontamination device and decontamination method

Abstract

The invention discloses a post-disaster chemical place decontamination device and decontamination method, and relates to the technical field of decontamination equipment. The post-disaster chemical place decontamination device comprises a movable frame, a spraying frame and a decontamination mechanism; the spraying frame is installed at the upper end of the movable frame and communicated with a water source, a spraying opening is formed in the spraying frame, and the decontamination mechanism is installed on the front side face of the movable frame; the decontamination mechanism comprises a waterproof motor, a motor support, a transmission assembly, a transmission shaft, a sliding frame, a supporting spring and a cleaning sponge. The decontamination mechanism can automatically rotate to clean a wall surface and can automatically extrude and clean redundant water in sponge, workers do not need to manually extrude and clean the redundant water in the sponge, and the working efficiency is guaranteed; the swing plate mechanism is mounted, so that the decontamination device cannot be separated from the wall surface when being close to the wall corner, the decontamination device can be suitable for the wall corners of various angles, and the working efficiency can be guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of decontamination equipment, and in particular to a decontamination device and a decontamination method for decontaminating chemical sites after disasters. Background Art

[0002] After a chemical disaster occurs, chemicals may contaminate the surrounding environment, equipment, buildings, etc. If these chemical pollutants are not handled in time, they will continue to harm human health and the ecosystem. The purpose of decontamination is to remove or reduce the degree of contamination of these harmful chemicals and restore the affected area to a relatively safe state.

[0003] The existing cleaning method is to first clean the residue on the wall with a sponge, then clean the wall with clean water, and finally clean the ground. However, during the cleaning process of the wall by the existing cleaning device, due to the different angles of the wall corners, when the wall corner is greater than 90°, the cleaning equipment will deviate from the wall after approaching the wall corner. When the wall angle is less than 90°, it will be difficult for the cleaning equipment to approach the wall corner, making it impossible for the cleaning equipment to clean the wall corner. The staff can only clean it manually, which is not conducive to ensuring work efficiency. When cleaning the wall corner, because the sponge of the cleaning equipment is close to the wall for a long time, the water flow cannot wash the wall corner, resulting in an unsatisfactory cleaning effect of the wall corner. Therefore, the wall corner needs to be cleaned multiple times, which is not conducive to ensuring work efficiency and cost control. Summary of the invention

[0004] In order to avoid the deficiencies of the above-mentioned prior art, the present invention provides a post-disaster chemical site decontamination device and decontamination method.

[0005] The present invention adopts the following technical solutions to solve the technical problems: a post-disaster chemical site decontamination device, comprising a mobile frame, a spray rack and a decontamination mechanism; The spray rack is installed at the upper end of the mobile frame and is connected to a water source. A spray port is provided on the spray rack. The decontamination mechanism is installed on the front side of the mobile frame. The disinfection mechanism includes a waterproof motor, a motor bracket, a transmission assembly, a transmission shaft, a sliding frame, a support spring and a cleaning sponge; the waterproof motor is mounted and fixed on the motor bracket, and its output end is mounted and connected to the transmission assembly, the motor bracket is mounted and fixed on the mobile frame, the transmission assembly is mounted and connected to the output end of the waterproof motor and the transmission shaft, the sliding frame is mounted on the transmission shaft, the support spring is mounted between the transmission shaft and the sliding frame, and the cleaning sponge is mounted on the outside of the sliding frame.

[0006] Furthermore, the number of the transmission shaft, the sliding frame, the supporting spring and the cleaning sponge of the disinfection mechanism is no less than two.

[0007] Furthermore, it also includes a swing plate mechanism, which includes a swing plate, a sliding rod, a bending rod, a locking structure and a return spring; the swing plate is installed on the mobile frame, the sliding rod is fixedly connected to the bending rod, one end of the sliding rod and the bending rod is installed on the swing plate, and the other end is installed on the mobile frame, the bending rod is provided with a waist-shaped groove, and the return spring is installed on the mobile frame, and one end of the return spring is fixedly connected to the sliding rod.

[0008] Furthermore, the locking structure of the swing plate mechanism includes a locking nut, and the locking nut passes through the waist-shaped groove provided on the bent rod and is installed and connected with the movable frame.

[0009] Furthermore, it also includes a corner cleaning mechanism, which includes a corner cleaning frame, a guide joint, a sealing block and a fixed threaded frame; the corner cleaning frame is installed on the swing plate, the guide joint is fixedly connected to the corner cleaning frame and communicated, the sealing block is slidably connected to the guide joint, a thread is provided inside the sealing block, one end of the fixed threaded frame is threadedly installed and connected to the sealing block, and the other end is fixedly connected to the spray frame.

[0010] Furthermore, a through hole is provided on the sealing block, and the lower end is connected to a water source.

[0011] Furthermore, it also includes a baffle mechanism, which includes a sealing plate, a guide block and a connecting spring; the sealing plate is slidably installed and connected to the guide block, the guide block is installed on the spray rack, the upper end of the connecting spring is connected to the sealing plate, and the lower end is connected to the sealing block.

[0012] Furthermore, it also includes a guiding mechanism, which includes a swing rod, a fixed block, a limiting block, a rotating rod, a contact rod, a pressing rod, a rotating disk, a guiding block and a protrusion; the swing rod and the fixed block are two in number, the fixed blocks are respectively fixedly connected to the movable frame and the side of the swing plate, one end of the two swing rods are respectively mounted and connected to the two fixed blocks, and the other end is mounted and connected to the limiting block, the rotating rod is installed on the transmission shaft and is slidably mounted and connected to the limiting block, the contact rod is slidably mounted and connected to the rotating rod, one end of the pressing rod is mounted and connected to the upper end of the contact rod, and the other end is mounted and connected to the sealing plate, the rotating disk is installed above the sliding frame, and a guiding block and a protrusion are provided on the rotating disk.

[0013] Furthermore, it also includes rollers, each of which is installed in the form of an array on the front side of the mobile frame and is located between the disinfection mechanisms.

[0014] A method for decontaminating a chemical site after a disaster, using the decontamination device for decontaminating a chemical site after a disaster as claimed in claim 1, comprising the following steps: Step 1: The staff starts the waterproof motor, and the waterproof motor rotates, driving the transmission component installed at the output end to rotate, and the transmission shaft connected to the transmission component also rotates together. The sliding frame installed on the transmission shaft drives the cleaning sponge on the outside to rotate. At this time, the cleaning sponge cleans the wall in front. When the sliding frame rotates to a certain angle, it can squeeze the cleaning sponge together with the wall in front of the cleaning sponge, and the water inside the cleaning sponge is squeezed out. The cleaning sponge continues to rotate, and then the staff cleans the entire wall. Step 2: The staff moves the moving frame to the corner of the wall. At this time, the swing plate is squeezed, and the slide bar installed on the swing plate slides backward, and at the same time compresses the return spring behind the slide bar until the swing plate is close to the wall. The staff rotates the locking nut to lock the bent rod, and the slide bar fixed to the bent rod is locked at the same time, so that the swing plate cannot move; Step 3: During the rotation of the swing plate, the corner cleaning rack installed above the swing plate rotates, driving the guide joint to rotate. At this time, the sealing block moves downward along the fixed threaded rack, exposing the through hole on the sealing block. Water is injected into the guide joint through the through hole on the sealing block, and then flows into the corner cleaning rack through the guide joint. Finally, it is sprayed from the corner cleaning rack to the corner of the wall. Step 4: When the sealing block moves downward, it drives the upper connecting spring to move downward, and the connecting spring drives the upper blocking plate to move downward along the guide block, blocking part of the spray openings on the spray rack, leaving only the spray openings for cleaning the corners, and water is sprayed from the remaining spray openings to the corners; Step 5: The blocking plate descends, driving the lower pressure rod to descend, and the lower pressure rod drives the contact rod to descend. The lower end of the contact rod abuts against the guide block, and the transmission shaft rotates, driving the sliding frame to rotate. The rotating disk installed on the sliding frame rotates, and the contact rod moves along the guide block and the protrusion to the outside of the rotating disk during the rotation of the rotating disk, so that the rotating disk is closer to the corner of the wall. The cleaning sponge under the rotating disk can be closer to the corner of the wall, increasing the cleaning effect on the corner of the wall, until the cleaning is completed.

[0015] The present invention provides a post-disaster chemical site decontamination device and decontamination method, which has the following beneficial effects: 1. The cleaning and disinfection mechanism of the present invention can automatically rotate to clean the wall surface and can automatically squeeze out excess water in the cleaning sponge. There is no need for the staff to manually squeeze out excess water in the cleaning sponge, which is beneficial to ensuring work efficiency.

[0016] 2. The present invention is equipped with a swing plate mechanism, which can prevent the disinfection device from detaching from the wall when it is close to a corner, and can be applied to corners of various angles, which is beneficial to ensuring work efficiency.

[0017] 3. The present invention is equipped with a corner cleaning mechanism and a baffle mechanism, so that when cleaning the corners, water can be sprayed from both sides to the corners, making the corners clean more thoroughly and facilitating work efficiency.

[0018] 4. The guide mechanism of the present invention can enable the cleaning sponge to be closer to the corner when the cleaning device is cleaning the corner, thereby improving the cleaning effect of the cleaning sponge on the corner, which is beneficial to ensuring work efficiency.

[0019] 5. The present invention is equipped with rollers to ensure that the distance between the moving frame and the wall is the same each time, so that the cleaning effect of the front wall remains consistent, and effectively avoids the phenomenon that the cleaning effect of part of the wall is not ideal due to the different distances between the moving frame and the front wall, which is conducive to ensuring work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the structure of a part of the decontamination mechanism of the present invention; Figure 3 It is a schematic diagram of the structure of a part of the decontamination mechanism of the present invention; Figure 4 It is a schematic structural diagram of a partial cross-section of the decontamination mechanism of the present invention; Figure 5 It is a structural schematic diagram of the swing plate mechanism of the present invention; Figure 6 It is a structural schematic diagram of the corner cleaning mechanism and the baffle mechanism of the present invention; Figure 7 It is a schematic diagram of the structure of a part of the guide mechanism of the present invention; Figure 8 It is a schematic diagram of the structure of a part of the guide mechanism of the present invention.

[0021] In the figure: 1. Mobile frame; 2. Spray rack; 3. Decontamination mechanism, 31. Waterproof motor, 32. Motor bracket, 33. Transmission assembly, 34. Transmission shaft, 35. Sliding rack, 36. Support spring, 37. Cleaning sponge; 4. Swing plate mechanism, 41. Swing plate, 42. Slide bar, 43. Bending rod, 44. Locking nut, 45. Reset spring; 5. Corner cleaning mechanism, 51. Corner cleaning rack, 52. Diversion joint, 53. Sealing block, 54. Fixed threaded rack; 6. Baffle mechanism, 61. Sealing plate, 62. Guide block, 63. Connecting spring; 7. Guide mechanism, 71. Swing rod, 72. Fixed block, 73. Limiting block, 74. Rotating rod, 75. Contact rod, 76. Pressing rod, 77. Rotating disk, 78. Guide block, 79. Bump; 8. Roller. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] like Figure 1 to Figure 8 As shown, its structural relationship is as follows: it includes a mobile frame 1, a spray rack 2 and a washing and disinfection mechanism 3; The spray rack 2 is installed at the upper end of the mobile frame 1 and is connected to the water source. A spray port is provided on the spray rack 2. The decontamination mechanism 3 is installed on the front side of the mobile frame 1. The disinfection mechanism 3 includes a waterproof motor 31, a motor bracket 32, a transmission assembly 33, a transmission shaft 34, a sliding frame 35, a support spring 36 and a cleaning sponge 37; the waterproof motor 31 is installed and fixed on the motor bracket 32, and its output end is installed and connected to the transmission assembly 33. The motor bracket 32 ​​is installed and fixed on the mobile frame 1, and the transmission assembly 33 is installed and connected to the output end of the waterproof motor 31 and the transmission shaft 34. The sliding frame 35 is installed on the transmission shaft 34, the support spring 36 is installed between the transmission shaft 34 and the sliding frame 35, and a cleaning sponge 37 is installed on the outside of the sliding frame 35.

[0024] The staff starts the waterproof motor 31, and the waterproof motor 31 rotates, driving the transmission component 33 installed at the output end to rotate, and the transmission shaft 34 connected to the transmission component 33 also rotates together. The sliding frame 35 installed on the transmission shaft 34 drives the cleaning sponge 37 on the outside to rotate. At this time, the cleaning sponge 37 cleans the wall in front. When the sliding frame 35 rotates to a certain angle, it can squeeze the cleaning sponge 37 together with the wall in front of the cleaning sponge 37. Subsequently, the water inside the cleaning sponge 37 is squeezed out, and the cleaning sponge 37 can repeatedly clean the wall in front, which is beneficial to ensure work efficiency.

[0025] Preferably, the number of the transmission shaft 34, the sliding frame 35, the supporting spring 36 and the cleaning sponge 37 of the disinfection mechanism 3 is not less than two.

[0026] This setting can improve the cleaning effect and help improve work efficiency.

[0027] Preferably, it also includes a swing plate mechanism 4, which includes a swing plate 41, a slide bar 42, a bent bar 43, a locking structure and a reset spring 45; the swing plate 41 is installed on the mobile frame 1, the slide bar 42 is fixedly installed and connected with the bent bar 43, one end of the slide bar 42 and the bent bar 43 is installed on the swing plate 41, and the other end is installed on the mobile frame 1, a waist-shaped groove is provided on the bent bar 43, and the reset spring 45 is installed on the mobile frame 1, and one end of the reset spring 45 is fixedly connected to the slide bar 42.

[0028] The staff moves the mobile frame 1 to the corner of the wall. At this time, the swing plate 41 is squeezed, and the slide bar 42 installed on the swing plate 41 slides backward. At the same time, the return spring 45 behind the slide bar 42 is compressed to a suitable distance and then stops. The distance is that the swing plate 41 is close to the wall. This setting can facilitate the cleaning mechanism 3 to clean the corner of the wall, which is beneficial to ensure work efficiency.

[0029] Preferably, the locking structure of the swing plate mechanism 4 includes a locking nut 44 , and the locking nut 44 passes through a waist-shaped groove provided on the bent rod 43 and is installed and connected to the moving frame 1 .

[0030] The staff rotates the locking nut 44 to lock the bent rod 43, and the sliding rod 42 fixed to the bent rod 43 is locked at the same time, so that the swing plate 41 cannot move, and the sliding rod 42 is prevented from being affected by the elastic force of the return spring 45 at the rear to drive the swing plate 41 to move, which is beneficial to ensure work efficiency.

[0031] Preferably, it also includes a corner cleaning mechanism 5, which includes a corner cleaning frame 51, a guide joint 52, a sealing block 53 and a fixed threaded frame 54; the corner cleaning frame 51 is installed on the swing plate 41, the guide joint 52 is fixedly connected to the corner cleaning frame 51 and communicated, the sealing block 53 is slidably connected to the guide joint 52, and a thread is provided inside the sealing block 53, one end of the fixed threaded frame 54 is threadedly installed and connected to the sealing block 53, and the other end is fixedly connected to the spray frame 2.

[0032] Preferably, a through hole is formed on the sealing block 53, and the lower end thereof is connected to a water source.

[0033] During the rotation of the swing plate 41, the corner cleaning rack 51 installed above the swing plate 41 rotates, driving the guide joint 52 to rotate. At this time, the sealing block 53 moves downward along the fixed threaded rack 54, and the through hole on the sealing block 53 is exposed. Water is injected into the guide joint 52 through the through hole on the sealing block 53, and then flows into the corner cleaning rack 51 through the guide joint 52. Finally, it is sprayed from the corner cleaning rack 51 to the corner of the wall. This setting can discharge water when the corner of the wall needs to be cleaned, and no water will be discharged at other times, which is beneficial to ensuring work efficiency and controlling costs.

[0034] Preferably, it also includes a baffle mechanism 6, which includes a sealing plate 61, a guide block 62 and a connecting spring 63; the sealing plate 61 is slidably installed and connected to the guide block 62, the guide block 62 is installed on the spray frame 2, the upper end of the connecting spring 63 is connected to the sealing plate 61, and the lower end is connected to the sealing block 53.

[0035] During the downward movement of the sealing block 53, the upper connecting spring 63 is driven to move downward, and the connecting spring 63 drives the upper blocking plate 61 to move downward along the guide block 62, blocking part of the spray openings on the spray frame 2, leaving only the spray openings for cleaning the corners. Water is sprayed from the remaining spray openings to the corners, greatly increasing the corner cleaning efficiency, which is beneficial to ensuring work efficiency.

[0036] Preferably, it also includes a guide mechanism 7, which includes a swing rod 71, a fixed block 72, a limiting block 73, a rotating rod 74, a contact rod 75, a pressing rod 76, a rotating disk 77, a guide block 78 and a protrusion 79; there are two swing rods 71 ​​and two fixed blocks 72, and the fixed blocks 72 are respectively fixed to the sides of the movable frame 1 and the swing plate 41, one end of the two swing rods 71 ​​is respectively installed and connected to the two fixed blocks 72, and the other end is installed and connected to the limiting block 73, the rotating rod 74 is installed on the transmission shaft 34, and is slidably installed and connected to the limiting block 73, the contact rod 75 is slidably installed and connected to the rotating rod 74, one end of the pressing rod 76 is installed and connected to the upper end of the contact rod 75, and the other end is installed and connected to the blocking plate 61, and the rotating disk 77 is installed above the sliding frame 35, and a guide block 78 and a protrusion 79 are provided on the rotating disk 77.

[0037] The blocking plate 61 descends, driving the pressing rod 76 to descend, and the pressing rod 76 drives the contact rod 75 to descend. The lower end of the contact rod 75 abuts against the guide block 78, and the transmission shaft 34 rotates, driving the sliding frame 35 to rotate, and the rotating disk 77 installed on the sliding frame 35 rotates. During the rotation of the rotating disk 77, the contact rod 75 moves along the guide block 78 and the protrusion 79 to the outside of the rotating disk 77, so that the rotating disk 77 is closer to the wall corner, increasing the cleaning effect of the cleaning sponge 37 under the rotating disk 77 on the wall corner, which is beneficial to the guarantee of work efficiency.

[0038] Preferably, it also includes rollers 8 , which are installed in an array on the front side of the mobile frame 1 and are located between the washing and disinfection mechanisms 3 .

[0039] This setting can make the distance between the mobile frame 1 and the wall the same each time, so that the cleaning effect of the disinfection mechanism 3 on the front wall is consistent, avoiding the unsatisfactory cleaning effect of part of the wall caused by the different distances between the mobile frame 1 and the front wall, which is beneficial to ensuring work efficiency.

[0040] A method for decontaminating a chemical site after a disaster, using the above-mentioned decontamination device for decontaminating a chemical site after a disaster, comprises the following steps: Step 1: The staff starts the waterproof motor 31, and the waterproof motor 31 rotates, driving the transmission assembly 33 installed at the output end to rotate, and the transmission shaft 34 connected to the transmission assembly 33 also rotates together, and the sliding frame 35 installed on the transmission shaft 34 drives the cleaning sponge 37 on the outside to rotate. At this time, the cleaning sponge 37 cleans the front wall. When the sliding frame 35 rotates to a certain angle, it can squeeze the cleaning sponge 37 together with the wall in front of the cleaning sponge 37, and the water inside the cleaning sponge 37 is squeezed out. The cleaning sponge 37 continues to rotate, and then the staff cleans the entire wall. Step 2: The staff moves the moving frame 1 to the corner of the wall. At this time, the swing plate 41 is squeezed, and the slide bar 42 installed on the swing plate 41 slides backward, and at the same time compresses the return spring 45 behind the slide bar 42. After the swing plate 41 is close to the wall, the staff rotates the locking nut 44 to lock the bent rod 43, and the slide bar 42 fixed to the bent rod 43 is locked at the same time, so that the swing plate 41 cannot move; Step 3: During the rotation of the swing plate 41, the corner cleaning rack 51 installed above the swing plate 41 rotates, driving the diversion joint 52 to rotate. At this time, the sealing block 53 moves downward along the fixed threaded rack 54, and the through hole on the sealing block 53 is exposed. Water is injected into the diversion joint 52 through the through hole on the sealing block 53, and then flows into the corner cleaning rack 51 through the diversion joint 52, and finally sprayed from the corner cleaning rack 51 to the corner of the wall; Step 4: When the sealing block 53 moves downward, the upper connecting spring 63 is driven to move downward, and the connecting spring 63 drives the upper blocking plate 61 to move downward along the guide block 62, blocking the upper spray opening of the spray frame 2, leaving only the spray opening for cleaning the corner, and water is sprayed from the remaining spray opening to the corner; The fifth step is to move the sealing plate 61 downward, driving the pressing rod 76 downward, driving the contact rod 75 downward, and the lower end of the contact rod 75 abuts against the guide block 78. The transmission shaft 34 rotates, driving the sliding frame 35 to rotate, and the rotating disk 77 installed on the sliding frame 35 rotates. During the rotation of the rotating disk 77, the contact rod 75 moves along the guide block 78 and the protrusion 79 to the outside of the rotating disk 77, so that the rotating disk 77 is closer to the corner of the wall. The cleaning sponge 37 under the rotating disk 77 can be closer to the corner of the wall, thereby increasing the cleaning effect on the corner of the wall, until the cleaning is completed.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0042] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A post-disaster chemical site decontamination device, characterized by: It comprises a mobile frame (1), a spray frame (2) and a decontamination mechanism (3); The spray rack (2) is installed on the upper end of the mobile frame (1) and is connected to a water source. A spray port is provided on the spray rack (2). The decontamination mechanism (3) is installed on the front side of the mobile frame (1). The decontamination mechanism (3) comprises a waterproof motor (31), a motor bracket (32), a transmission assembly (33), a transmission shaft (34), a sliding frame (35), a support spring (36) and a cleaning sponge (37); the waterproof motor (31) is fixedly mounted on the motor bracket (32), and its output end is connected to the transmission assembly (33); the motor bracket (32) is fixedly mounted on the mobile frame (1); the transmission assembly (33) is connected to the output end of the waterproof motor (31) and the transmission shaft (34); the sliding frame (35) is mounted on the transmission shaft (34); the support spring (36) is mounted between the transmission shaft (34) and the sliding frame (35); and the cleaning sponge (37) is mounted on the outer side of the sliding frame (35).

2. A post-disaster chemical site decontamination device according to claim 1, characterized in that: The number of the transmission shaft (34), the sliding frame (35), the supporting spring (36) and the cleaning sponge (37) of the decontamination mechanism (3) is no less than two.

3. A post-disaster chemical site decontamination device according to claim 2, characterized in that: The invention also comprises a swing plate mechanism (4), wherein the swing plate mechanism (4) comprises a swing plate (41), a slide bar (42), a bent bar (43), a locking structure and a return spring (45); the swing plate (41) is mounted on the mobile frame (1); the slide bar (42) and the bent bar (43) are fixedly mounted and connected; one end of the slide bar (42) and the bent bar (43) are mounted on the swing plate (41) and the other end is mounted on the mobile frame (1); a waist-shaped groove is provided on the bent bar (43); the return spring (45) is mounted on the mobile frame (1) and one end of the return spring (45) is fixedly connected to the slide bar (42).

4. A post-disaster chemical site decontamination device according to claim 3, characterized in that: The locking structure of the swing plate mechanism (4) comprises a locking nut (44), and the locking nut (44) passes through a waist-shaped groove provided on the bent rod (43) and is installed and connected to the moving frame (1).

5. A post-disaster chemical site decontamination device according to claim 3, characterized in that: The invention also comprises a corner cleaning mechanism (5), the corner cleaning mechanism (5) comprising a corner cleaning frame (51), a flow guide joint (52), a sealing block (53) and a fixed threaded frame (54); the corner cleaning frame (51) is mounted on the swing plate (41); the flow guide joint (52) is fixedly connected to the corner cleaning frame (51) and communicates with the corner cleaning frame (51); the sealing block (53) is slidably connected to the flow guide joint (52); a thread is provided inside the sealing block (53); one end of the fixed threaded frame (54) is threadedly mounted and connected to the sealing block (53); and the other end is fixedly connected to the spray frame (2).

6. A post-disaster chemical site decontamination device according to claim 5, characterized in that: The sealing block (53) is provided with a through hole, and the lower end is connected to a water source.

7. A post-disaster chemical site decontamination device according to claim 5, characterized in that: The spray spray frame (2) further comprises a baffle mechanism (6), the baffle mechanism (6) comprising a blocking plate (61), a guide block (62) and a connecting spring (63); the blocking plate (61) is slidably mounted and connected to the guide block (62), the guide block (62) is mounted on the spray rack (2), the upper end of the connecting spring (63) is connected to the blocking plate (61), and the lower end is connected to the sealing block (53).

8. A post-disaster chemical site decontamination device according to claim 7, characterized in that: The invention also comprises a guide mechanism (7), wherein the guide mechanism (7) comprises a swing rod (71), a fixed block (72), a limiting block (73), a rotating rod (74), a contact rod (75), a pressing rod (76), a rotating disk (77), a guide block (78) and a protrusion (79); the number of the swing rod (71) and the fixed block (72) is two, the fixed block (72) is respectively fixed to the side of the moving frame (1) and the swing plate (41), one end of the two swing rods (71) is respectively installed and connected to the two fixed blocks (72), The other end is mounted and connected to the limiting block (73); the rotating rod (74) is mounted on the transmission shaft (34) and is slidably mounted and connected to the limiting block (73); the contact rod (75) is slidably mounted and connected to the rotating rod (74); one end of the pressing rod (76) is mounted and connected to the upper end of the contact rod (75), and the other end is mounted and connected to the blocking plate (61); the rotating disk (77) is mounted above the sliding frame (35); and a guide block (78) and a protrusion (79) are provided on the rotating disk (77).

9. A post-disaster chemical site decontamination device according to claim 9, characterized in that: It also includes rollers (8), each of which is installed in an array on the front side of the mobile frame (1) and is located between the decontamination mechanisms (3).

10. A method for decontaminating a chemical site after a disaster, using the decontamination device for decontaminating a chemical site after a disaster as claimed in claim 7, characterized in that: The following steps are involved: Step 1: The staff starts the waterproof motor (31), and the waterproof motor (31) rotates, driving the transmission assembly (33) installed at the output end to rotate, and the transmission shaft (34) connected to the transmission assembly (33) also rotates together, and the sliding frame (35) installed on the transmission shaft (34) drives the cleaning sponge (37) on the outside to rotate. At this time, the cleaning sponge (37) cleans the wall in front. When the sliding frame (35) rotates to a certain angle, it can squeeze the cleaning sponge (37) together with the wall in front of the cleaning sponge (37), and the water inside the cleaning sponge (37) is squeezed out. The cleaning sponge (37) continues to rotate, and then the staff cleans the entire wall; Step 2: The staff moves the moving frame (1) to the corner of the wall. At this time, the swing plate (41) is squeezed, and the slide bar (42) installed on the swing plate (41) slides backward, and at the same time, the return spring (45) behind the slide bar (42) is compressed until the swing plate (41) is close to the wall. The staff rotates the locking nut (44) to lock the bent rod (43), and the slide bar (42) fixed to the bent rod (43) is locked at the same time, so that the swing plate (41) cannot move; Step 3: During the rotation of the swing plate (41), the corner cleaning rack (51) installed above the swing plate (41) rotates, driving the guide joint (52) to rotate. At this time, the sealing block (53) moves downward along the fixed threaded rack (54), and the through hole on the sealing block (53) is exposed. Water is injected into the guide joint (52) through the through hole on the sealing block (53), and then flows into the corner cleaning rack (51) through the guide joint (52). Finally, it is sprayed from the corner cleaning rack (51) to the corner of the wall. Step 4: When the sealing block (53) moves downward, the upper connecting spring (63) is driven to move downward, and the connecting spring (63) drives the upper blocking plate (61) to move downward along the guide block (62), thereby blocking the upper spray opening of the spray frame (2), leaving only the spray opening for cleaning the corner, and water is sprayed from the remaining spray opening to the corner; Step 5: The blocking plate (61) descends and drives the pressing rod (76) to descend. The pressing rod (76) drives the contact rod (75) to descend. The lower end of the contact rod (75) abuts against the guide block (78). The transmission shaft (34) rotates, driving the sliding frame (35) to rotate. The rotating disk (77) mounted on the sliding frame (35) rotates. During the rotation of the rotating disk (77), the contact rod (75) moves along the guide block (78) and the protrusion (79) to the outside of the rotating disk (77), so that the rotating disk (77) is closer to the corner of the wall. The cleaning sponge (37) below the rotating disk (77) can be closer to the corner of the wall, thereby increasing the cleaning effect on the corner of the wall, until the cleaning is completed.

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