Multi-station material injection device based on microorganism desilting technology

Abstract

The utility model provides a multi-station material injection device based on a microorganism desilting technology. The multi-station material injection device comprises a ship body, two spray gun bodies, a water storage tank and a winding assembly. A lifting plate is arranged on the lower side of the ship body, is in sliding connection with the ship body through a connecting rod and is in transmission connection with a linear driving component; the two spray gun bodies are arranged on the lower side of the lifting plate and slidably connected with the lifting plate. An elastic piece is arranged between each spray gun body and the lifting plate, and the two elastic pieces are used for driving the two spray gun bodies to move back to back; the water storage tank is fixedly arranged on the ship body, and two hoses are connected to the water storage tank; the winding assembly is fixedly arranged on the ship body and connected with the two hoses so that the two hoses can be wound, the two spray gun bodies can move in the opposite directions, and the two elastic pieces can elastically deform. According to the multi-station material injection device based on the microorganism desilting technology, simultaneous material injection of multiple areas can be achieved, the requirement for multi-area material injection is met, and the material injection efficiency of desilting liquid is ensured.

Description

Technical Field

[0001] The present application belongs to the technical field of microbial dredging, and specifically relates to a multi-station injection device based on microbial dredging technology. Background Art

[0002] Microbial dredging technology refers to a technical means of removing silt at the bottom of a river by injecting microbial agents into the silt.

[0003] Existing microbial preparations are injected through a spray gun, specifically by moving the hull, inserting a rod-shaped spray gun into the sludge, and keeping the injection port of the spray gun between 10cm and 15cm away from the upper layer of the sludge, so that the microbial preparation (hereinafter referred to as "dredging liquid") is injected into the sludge under the action of the spray gun.

[0004] The inventors have found that the existing injection device can only realize injection in a single area. When injecting in multiple areas, the device needs to be repeatedly moved and plugged in and out, resulting in a technical defect of reduced efficiency of dredging liquid injection. Utility Model Content

[0005] The embodiment of the present application provides a multi-station injection device based on microbial dredging technology, which aims to achieve simultaneous injection of multiple areas, adapt to the needs of multi-area injection, and ensure the injection efficiency of dredging liquid.

[0006] To achieve the above purpose, the technical solution adopted in this application is:

[0007] A multi-station injection device based on microbial dredging technology is provided, comprising:

[0008] The hull is used for traveling on the water surface, and has a lifting plate on its lower side; the lifting plate is slidably connected to the hull in the up-down direction through a connecting rod, and the lifting plate is also transmission-connected to a linear driving member for driving it to move in the up-down direction;

[0009] Two spray gun bodies are arranged side by side on the lower side of the lifting plate in the front-to-back direction, and are both slidably connected to the lower side of the lifting plate in the front-to-back direction; an elastic member is provided between each of the spray gun bodies and the lifting plate, and the two elastic members are used to drive the two spray gun bodies to move in opposite directions;

[0010] A water storage tank is used to store the dredging liquid and is fixedly arranged on the upper side of the hull; two hoses are connected to the water storage tank, and the two hoses pass through the hull and the lifting plate in the up-down direction and are respectively connected to the two spray gun bodies; and

[0011] A winding assembly, fixedly arranged on the hull and connected to the two hoses, for winding the two hoses;

[0012] Wherein, the junction of the hose and the lifting plate is located between the two spray gun bodies; when the winding assembly wraps around the two hoses, the two spray gun bodies move toward each other due to the traction force, and the two elastic members undergo elastic deformation.

[0013] In a possible implementation, the elastic member includes:

[0014] A guide rod, fixedly connected to the lower side of the lifting plate, with its axial direction parallel to the front-rear direction and a spring coaxially sleeved thereon; and

[0015] A connecting piece, fixedly arranged on the spray gun body, and slidably connected with the guide rod along the front-rear direction;

[0016] Wherein, the two ends of the spring are connected to the lifting plate and the connecting piece respectively; when the winding assembly winds the two hoses, the two spray gun bodies move toward each other due to the traction force, and the two springs are elastically stretched and deformed.

[0017] In one possible implementation, the upper end surface of the spray gun body has a plurality of suspension plates extending upward; each of the suspension plates is slidably connected to the lower side surface of the lifting plate in the front-to-back direction so that an installation space is formed between the upper end surface of the spray gun body and the lower side surface of the lifting plate, and the elastic member is arranged in the installation space.

[0018] In a possible implementation, the lower side of the lifting plate has two first fixed pulleys arranged in parallel along the front-to-back direction; one of the first fixed pulleys is rotatably connected to the upper end surface of the spray gun body along the left-right direction, and the other first fixed pulley is rotatably connected to the lower side surface of the lifting plate along the left-right direction;

[0019] Part of the hose located between the lifting plate and the spray gun body is disposed around two of the first fixed pulleys in sequence, so that the part of the hose is in a straight state.

[0020] In one possible implementation, the upper end of the spray gun body has a connecting plate extending outward in a horizontal direction; the hose passes through the connecting plate in an up and down direction and is connected to the spray gun body, and the first fixed pulley is arranged on the upper side of the connecting plate; and a second fixed pulley is also arranged on the lower side of the connecting plate.

[0021] In a possible implementation, the winding component includes:

[0022] A base, fixedly arranged on the upper side of the hull, the upper side of which has two supporting arms arranged in parallel along the front-rear direction; and

[0023] A rotating plate is arranged between the two supporting arms, and is connected to the two supporting arms in a front-to-back direction, and the rotating plate is connected to a rotating motor for driving the rotating plate to rotate; the rotating plate has two through holes arranged in parallel in the front-to-back direction, and the axial direction of each through hole is perpendicular to the front-to-back direction;

[0024] The two hoses are respectively inserted into the two through holes; when the rotating motor drives the rotating plate to rotate, the two hoses are wound around the rotating plate or detached from the rotating plate.

[0025] In a possible implementation, the linear drive component includes:

[0026] A portal frame fixedly arranged on the upper side of the hull, and the portal frame has a transmission plate slidably arranged in an up-and-down direction and connected to the connecting rod; and

[0027] The linear cylinder is fixedly arranged on the top of the portal frame, the power output axis of which is parallel to the up-down direction, and the power output end of which is connected to the transmission plate.

[0028] In a possible implementation, the hull has two reserved holes arranged in parallel along the front-rear direction and both penetrated in the up-down direction, and the two hoses extend out through the two reserved holes respectively; the multi-station injection device also includes:

[0029] a fixing frame, fixedly arranged on the upper side of the hull; and

[0030] The movable frame is arranged on the upper side of the fixed frame and is slidably connected with the fixed frame in the up-down direction; the movable frame has two third fixed pulleys arranged in parallel in the front-back direction, the two third fixed pulleys are respectively located directly above the two reserved holes, and the two third fixed pulleys are respectively suitable for the two hoses to bypass;

[0031] There is a distance adjustment structure between the fixed frame and the movable frame; the distance adjustment structure is used to adjust the distance between the movable frame and the fixed frame to extend or shorten the part of the hose that is located between the lifting plate and the third fixed pulley and is in a vertical state.

[0032] In a possible implementation, the distance adjustment structure includes:

[0033] A directional nut, fixedly connected to the fixing frame, with its axial direction parallel to the up-down direction; and

[0034] An adjusting bolt, which is threadedly connected to the directional nut, and whose upper end is rotatably connected to the moving frame along the up-down direction;

[0035] When the adjusting bolt is rotated, the movable frame moves in the up-down direction relative to the fixed frame to lengthen or shorten the portion of the hose that is located between the lifting plate and the third fixed pulley and is in a vertical state.

[0036] In a possible implementation, a propulsion assembly is provided on the lower side of the hull; when the propulsion assembly is started, the hull moves along the action direction of the propulsion assembly.

[0037] In the embodiment of the present application, the lifting plate is driven to move by a linear driving component, so that the two spray gun bodies can simultaneously and repeatedly enter and exit the underwater sludge to achieve the technical purpose of positioning and outputting the dredging liquid; on this basis, the two hoses can be wound through the winding assembly, so that the two spray gun bodies move toward each other and the two elastic parts undergo elastic deformation; or, the two hoses can be released through the winding assembly, so that the two spray gun bodies move back to back under the action of the elastic parts, so as to increase the distance between the two spray gun bodies.

[0038] Compared with the prior art, the multi-station injection device based on the microbial dredging technology provided in this embodiment can realize simultaneous injection of multiple areas, adapt to the needs of multi-area injection, and ensure the injection efficiency of the dredging liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 A schematic diagram of the three-dimensional structure of a multi-station injection device based on microbial dredging technology provided in an embodiment of the present application;

[0040] Figure 2 for Figure 1 A top view of

[0041] Figure 3 For along Figure 2 The cross-sectional structure diagram along the AA line;

[0042] Figure 4 A schematic diagram of the three-dimensional structure of the hull used in the embodiment of the present application;

[0043] Figure 5 A schematic diagram of the structure between the transmission plate and the lifting plate used in the embodiment of the present application;

[0044] Figure 6 This is a schematic diagram of the three-dimensional structure of the winding assembly used in the embodiment of the present application;

[0045] Figure 7 A schematic diagram of the combined structure of the fixed frame and the mobile frame used in the embodiment of the present application;

[0046] Figure 8 This is a schematic diagram of the combined structure between the spray gun body and the water storage tank used in the embodiment of the present application;

[0047] Fig. 9 This is one of the partial structural schematic diagrams of the lifting plate and the spray gun body used in the embodiment of the present application;

[0048] Fig.10 The second schematic diagram of the partial structure of the lifting plate and the spray gun body used in the embodiment of the present application;

[0049] Explanation of the accompanying drawings: 1. hull; 11. lifting plate; 12. connecting rod; 13. reserved hole; 14. propulsion assembly; 2. spray gun body; 21. suspension plate; 22. connecting plate; 3. water tank; 31. hose; 4. winding assembly; 41. base; 411. support arm; 42. rotating plate; 421. rotating motor; 422. perforation; 5. linear drive component; 51. portal frame; 511. transmission plate; 52. linear cylinder; 6. elastic member; 61. guide rod; 611. spring; 62. connecting member; 7. fixed frame; 8. movable frame; 9. distance adjustment structure; 91. directional nut; 92. adjusting bolt; 10. first fixed pulley; 20. second fixed pulley; 30. third fixed pulley. DETAILED DESCRIPTION

[0050] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0051] Please also read Figures 1 to 10 The multi-station injection device based on microbial dredging technology provided by the present application is now described. The multi-station injection device based on microbial dredging technology proposed in the present application comprises a hull 1, two spray gun bodies 2, a water storage tank 3 and a winding assembly 4.

[0052] The hull 1 is used for traveling on the water, and has a lifting plate 11 on its lower side; the lifting plate 11 is slidably connected to the hull 1 in the up and down directions via a connecting rod 12, and the lifting plate 11 is also transmission-connected to a linear driving member 5 for driving it to move in the up and down directions.

[0053] The two spray gun bodies 2 are used to output dredging liquid to the outside. They are arranged side by side on the lower side of the lifting plate 11 along the front-to-back direction, and are slidably connected to the lower side of the lifting plate 11 along the front-to-back direction; there is an elastic member 6 between each spray gun body 2 and the lifting plate 11, and the two elastic members 6 are used to drive the two spray gun bodies 2 to move in opposite directions.

[0054] The water storage tank 3 is used to store the dredging liquid, and is fixedly arranged on the upper side of the hull 1; two hoses 31 are connected to the water storage tank 3, and the two hoses 31 pass through the hull 1 and the lifting plate 11 in the up and down directions and are respectively connected to the two spray gun bodies 2. When the spray gun body 2 is started, the dredging liquid in the water storage tank 3 is simultaneously output to the spray gun body 2 through the two hoses 31 and sprayed out through the output port of the spray gun body 2.

[0055] The winding assembly 4 is fixedly arranged on the hull 1 and connected to the two hoses 31 for winding the two hoses 31 onto a roller, or releasing the hoses 31 to the outside of the roller so as to extend them out as the spray gun body 2 descends.

[0056] The connection between the hose 31 and the lifting plate 11 is located between the two spray gun bodies 2 ; when the reel assembly 4 winds the two hoses 31 , the two spray gun bodies 2 move toward each other due to the traction force, and the two elastic members 6 undergo elastic deformation.

[0057] In the embodiment of the present application, the lifting plate 11 is driven to move by the linear driving component 5, so that the two spray gun bodies 2 can simultaneously and repeatedly enter and exit the underwater sludge to achieve the technical purpose of positioning and outputting the dredging liquid; on this basis, the two hoses 31 can be wound through the winding component 4, so that the two spray gun bodies 2 move toward each other and the two elastic members 6 undergo elastic deformation; or, the two hoses 31 can be released through the winding component 4, so that the two spray gun bodies 2 move back to back under the action of the elastic member 6, so as to increase the distance between the two spray gun bodies 2.

[0058] Compared with the prior art, the multi-station injection device based on the microbial dredging technology provided in this embodiment can realize simultaneous injection of multiple areas, adapt to the needs of multi-area injection, and ensure the injection efficiency of the dredging liquid.

[0059] In some embodiments, Fig. 9 and Fig.10 As shown, the elastic member 6 includes a guide rod 61 and a connecting member 62 .

[0060] The guide rod 61 is fixedly connected to the lower side of the lifting plate 11 , with its axial direction parallel to the front-rear direction, and a spring 611 is coaxially sleeved thereon.

[0061] The connecting member 62 is fixedly disposed on the spray gun body 2 and is slidably connected to the guide rod 61 along the front-rear direction.

[0062] The two ends of the spring 611 are connected to the lifting plate 11 and the connecting piece 62 respectively; when the winding assembly 4 winds the two hoses 31, the two spray gun bodies 2 move toward each other due to the traction force, and the two springs 611 are elastically stretched and deformed.

[0063] In some embodiments, Fig. 9 and Fig.10 As shown, the upper end surface of the spray gun body 2 has a plurality of suspension plates 21 extending upward; each suspension plate 21 is slidably connected to the lower side surface of the lifting plate 11 along the front-to-back direction, so that an installation space is formed between the upper end surface of the spray gun body 2 and the lower side surface of the lifting plate 11, and the elastic member 6 is arranged in the installation space.

[0064] In some embodiments, Figure 8 and Fig. 9 As shown, the lower side of the lifting plate 11 has two first fixed pulleys 10 arranged in parallel along the front-to-back direction; one of the first fixed pulleys 10 is rotatably connected to the upper end surface of the spray gun body 2 along the left-right direction, and the other first fixed pulley 10 is rotatably connected to the lower side surface of the lifting plate 11 along the left-right direction.

[0065] During actual assembly, the portion of the hose 31 between the lifting plate 11 and the spray gun body 2 is disposed around the two first fixed pulleys 10 in succession, so that the portion of the hose 31 is in a straight state.

[0066] In some embodiments, Fig. 9 As shown, the upper end of the spray gun body 2 has a connecting plate 22 extending outward in the horizontal direction; the hose 31 passes through the connecting plate 22 in the up and down directions and is connected to the spray gun body 2, and the first fixed pulley 10 is arranged on the upper side of the connecting plate 22; and, a second fixed pulley 20 is also arranged on the lower side of the connecting plate 22.

[0067] In some embodiments, Figure 1 and Figure 6 As shown, the winding assembly 4 includes a base 41 and a rotating plate 42 .

[0068] The base 41 is fixedly arranged on the upper side of the hull 1, and the upper side thereof has two supporting arms 411 arranged in parallel along the front-rear direction.

[0069] The rotating plate 42 is arranged between the two supporting arms 411, and is rotatably connected to the two supporting arms 411 along the front-to-back direction. The rotating plate 42 is transmission-connected to a rotating motor 421 for driving it to rotate. The rotating plate 42 has two through holes 422 arranged in parallel along the front-to-back direction, and the axial direction of each through hole 422 is perpendicular to the front-to-back direction.

[0070] The two hoses 31 are respectively inserted into the two through holes 422 ; when the rotating motor 421 drives the rotating plate 42 to rotate, the two hoses 31 are wound around the rotating plate 42 or detached from the rotating plate 42 .

[0071] In some embodiments, Figure 1 and Figure 3 As shown, the linear drive component 5 includes a portal frame 51 and a linear cylinder 52 .

[0072] The portal frame 51 is fixedly arranged on the upper side of the hull 1 , and has a transmission plate 511 slidably arranged in the up-down direction and connected to the connecting rod 12 .

[0073] The linear cylinder 52 is fixedly arranged at the top end of the portal frame 51 , and its power output axis is parallel to the up-down direction, and its power output end is connected to the transmission plate 511 .

[0074] By adopting the above technical solution, when the linear cylinder 52 is started, the transmission plate 511 moves in the up-down direction, so as to drive the lifting plate 11 to move synchronously in the up-down direction through the connecting rod 12 .

[0075] In some embodiments, Figure 1 , Figure 4 and Figure 7 As shown, the hull 1 has two reserved holes 13 arranged in parallel along the front-rear direction and penetrating along the up-down direction, and two hoses 31 extend out through the two reserved holes 13 respectively.

[0076] In this embodiment, the multi-station injection device further includes a fixed frame 7 and a movable frame 8 .

[0077] The fixing frame 7 is fixedly arranged on the upper side of the hull 1 .

[0078] The movable frame 8 is arranged on the upper side of the fixed frame 7, and is slidably connected to the fixed frame 7 along the up and down directions; in the present embodiment, the movable frame 8 has two third fixed pulleys 30 arranged in parallel along the front and rear directions, the two third fixed pulleys 30 are respectively located directly above the two reserved holes 13, and the two third fixed pulleys 30 are respectively suitable for allowing two hoses 31 to bypass.

[0079] In addition, a distance adjustment structure 9 is provided between the fixed frame 7 and the movable frame 8; the distance adjustment structure 9 is used to adjust the distance between the movable frame 8 and the fixed frame 7 to extend or shorten the portion of the hose 31 located between the lifting plate 11 and the third fixed pulley 30 and in a vertical state.

[0080] In some embodiments, Figure 7 As shown, the distance adjustment structure 9 includes a directional nut 91 and an adjusting bolt 92 .

[0081] The directional nut 91 is fixedly connected to the fixing frame 7, and its axial direction is parallel to the up-down direction.

[0082] The adjusting bolt 92 is threadedly connected to the directional nut 91 , and the upper end thereof is rotatably connected to the moving frame 8 along the up-down direction.

[0083] By adopting the above technical solution, when the adjusting bolt 92 rotates, the movable frame 8 moves in the up and down directions relative to the fixed frame 7 to extend or shorten the part of the hose 31 in a vertical state between the lifting plate 11 and the third fixed pulley 30, so as to increase the linear movement distance of the dredging liquid and ensure the smooth output of the dredging liquid.

[0084] In some embodiments, Figure 1 As shown, a propulsion assembly 14 is disposed on the lower side of the hull 1; in a conventional setting, the propulsion assembly 14 includes an electric motor and a propeller electrically connected to the electric motor.

[0085] By adopting the above technical solution, when the propulsion assembly 14 is started, the hull 1 moves along the action direction of the propulsion assembly 14 to timely change the injection area and ultimately achieve the effect of expanding the injection area.

[0086] The above content is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A multi-station injection device based on microbial dredging technology, characterized in that: include: The hull is used for traveling on the water surface, and has a lifting plate on its lower side; the lifting plate is slidably connected to the hull in the up-down direction through a connecting rod, and the lifting plate is also transmission-connected to a linear driving member for driving it to move in the up-down direction; Two spray gun bodies are arranged side by side on the lower side of the lifting plate in the front-to-back direction, and are both slidably connected to the lower side of the lifting plate in the front-to-back direction; an elastic member is provided between each of the spray gun bodies and the lifting plate, and the two elastic members are used to drive the two spray gun bodies to move in opposite directions; A water storage tank is used to store the dredging liquid and is fixedly arranged on the upper side of the hull; two hoses are connected to the water storage tank, and the two hoses pass through the hull and the lifting plate in the up-down direction and are respectively connected to the two spray gun bodies; and A winding assembly, fixedly arranged on the hull and connected to the two hoses, for winding the two hoses; Wherein, the junction of the hose and the lifting plate is located between the two spray gun bodies; when the winding assembly wraps around the two hoses, the two spray gun bodies move toward each other due to the traction force, and the two elastic members undergo elastic deformation.

2. The multi-station injection device based on microbial dredging technology according to claim 1 is characterized in that: The elastic member comprises: A guide rod, fixedly connected to the lower side of the lifting plate, with its axial direction parallel to the front-rear direction and a spring coaxially sleeved thereon; and A connecting piece, fixedly arranged on the spray gun body, and slidably connected with the guide rod along the front-rear direction; Wherein, the two ends of the spring are connected to the lifting plate and the connecting piece respectively; when the winding assembly winds the two hoses, the two spray gun bodies move toward each other due to the traction force, and the two springs are elastically stretched and deformed.

3. The multi-station injection device based on microbial dredging technology according to claim 1 or 2, characterized in that: The upper end surface of the spray gun body has a plurality of suspension plates extending upward; each of the suspension plates is slidably connected to the lower side surface of the lifting plate in the front-to-back direction, so that an installation space is formed between the upper end surface of the spray gun body and the lower side surface of the lifting plate, and the elastic member is arranged in the installation space.

4. The multi-station injection device based on microbial dredging technology according to claim 1 is characterized in that: The lower side of the lifting plate has two first fixed pulleys arranged in parallel along the front-to-back direction; one of the first fixed pulleys is rotatably connected to the upper end surface of the spray gun body along the left-right direction, and the other first fixed pulley is rotatably connected to the lower side surface of the lifting plate along the left-right direction; Part of the hose located between the lifting plate and the spray gun body is disposed around two of the first fixed pulleys in sequence, so that the part of the hose is in a straight state.

5. The multi-station injection device based on microbial dredging technology according to claim 4 is characterized in that: The upper end of the spray gun body has a connecting plate extending outward in a horizontal direction; the hose passes through the connecting plate in an up-down direction and is connected to the spray gun body, and the first fixed pulley is arranged on the upper side of the connecting plate; and a second fixed pulley is also arranged on the lower side of the connecting plate.

6. The multi-station injection device based on microbial dredging technology according to claim 1 is characterized in that: The winding assembly comprises: A base, fixedly arranged on the upper side of the hull, the upper side of which has two supporting arms arranged in parallel along the front-rear direction; and A rotating plate is arranged between the two supporting arms, and is connected to the two supporting arms in a front-to-back direction, and the rotating plate is connected to a rotating motor for driving the rotating plate to rotate; the rotating plate has two through holes arranged in parallel in the front-to-back direction, and the axial direction of each through hole is perpendicular to the front-to-back direction; The two hoses are respectively inserted into the two through holes; when the rotating motor drives the rotating plate to rotate, the two hoses are wound around the rotating plate or detached from the rotating plate.

7. The multi-station injection device based on microbial dredging technology according to claim 1 is characterized in that: The linear drive component comprises: A portal frame fixedly arranged on the upper side of the hull, and the portal frame has a transmission plate slidably arranged in an up-and-down direction and connected to the connecting rod; and The linear cylinder is fixedly arranged on the top of the portal frame, the power output axis of which is parallel to the up-down direction, and the power output end of which is connected to the transmission plate.

8. The multi-station injection device based on microbial dredging technology according to claim 1, characterized in that: The hull has two reserved holes arranged in parallel along the front-rear direction and both penetrated in the up-down direction, and the two hoses extend out through the two reserved holes respectively; the multi-station injection device also includes: a fixing frame, fixedly arranged on the upper side of the hull; and The movable frame is arranged on the upper side of the fixed frame and is slidably connected with the fixed frame in the up-down direction; the movable frame has two third fixed pulleys arranged in parallel in the front-back direction, the two third fixed pulleys are respectively located directly above the two reserved holes, and the two third fixed pulleys are respectively suitable for the two hoses to bypass; There is a distance adjustment structure between the fixed frame and the movable frame; the distance adjustment structure is used to adjust the distance between the movable frame and the fixed frame to extend or shorten the part of the hose that is located between the lifting plate and the third fixed pulley and is in a vertical state.

9. The multi-station injection device based on microbial dredging technology according to claim 8, characterized in that: The distance adjustment structure comprises: A directional nut, fixedly connected to the fixing frame, with its axial direction parallel to the up-down direction; and An adjusting bolt, which is threadedly connected to the directional nut, and whose upper end is rotatably connected to the moving frame along the up-down direction; When the adjusting bolt is rotated, the movable frame moves in the up-down direction relative to the fixed frame to lengthen or shorten the portion of the hose that is located between the lifting plate and the third fixed pulley and is in a vertical state.

10. The multi-station injection device based on microbial dredging technology according to claim 1, characterized in that: A propulsion assembly is arranged on the lower side of the hull; when the propulsion assembly is started, the hull moves along the action direction of the propulsion assembly.

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