Deodorization device for domestic sewage primary sedimentation tank

Abstract

The invention relates to the technical field of sewage treatment, and discloses a domestic sewage primary sedimentation tank deodorization device which comprises a frame, guide sliding rails located on the two sides of the frame and a driving assembly. The driving assembly is used for driving the frame to move up and down in the primary sedimentation tank, a liquid spraying assembly is arranged on the frame, the liquid spraying assembly comprises a plurality of liquid spraying pipes rotationally arranged on the frame and a liquid inlet pipe connecting all the liquid spraying pipes together, and liquid spraying holes are formed in the liquid spraying pipes. The liquid spraying holes are formed upwards; two sliding seats are arranged on the frame in a sliding mode, the liquid spraying pipe is arranged on the two sliding seats in a rotating mode, the guide sliding rail is provided with a plurality of bent sections, and the opening directions of the vertically adjacent bent sections are opposite. According to the invention, the treatment range of the medicament can be widened, so that the sewage treatment effect is improved.

Description

Technical Field

[0001] The present application relates to the technical field of sewage treatment, and in particular to a deodorization device for a primary sedimentation tank for domestic sewage. Background Art

[0002] The sewage primary sedimentation tank is an important physical treatment unit in the sewage treatment system. It is mainly used to remove pollutants such as suspended solids and sediments in the sewage, reducing the load for subsequent biological treatment or chemical treatment. There are many pollutants in the sewage in the primary sedimentation tank, which will have a heavy odor. Deodorizing agents are usually added to the primary sedimentation tank, which not only promotes the precipitation and separation of pollutants in the sewage, but also can remove certain odors.

[0003] The existing Chinese patent document with application number 202111134209.3 discloses a deodorization device for a domestic sewage primary sedimentation tank, including an injection pipe and a control box. The lower end of the injection pipe is connected to a discharge plate box, and the discharge plate box is located in the control box. The agent is delivered into the discharge plate box through the injection pipe, and then enters the sewage through the discharge plate box.

[0004] The reagent is delivered through the device in the above scheme. There are more pollutants in the sewage, which reduces the fluidity of the sewage and makes the reagent more distributed around the control box in the sewage, thereby reducing the treatment effect of the reagent on the sewage. However, if the discharge plate box is designed to be larger, it will occupy too much space in the primary sedimentation tank, so there is still room for improvement. Summary of the invention

[0005] In order to improve the treatment effect of sewage, the present application provides a deodorization device for a domestic sewage primary sedimentation tank.

[0006] This application adopts the following technical solutions: A deodorizing device for a primary sedimentation tank for domestic sewage comprises a frame, guide rails on both sides of the frame and a driving assembly; the driving assembly is used to drive the frame to move up and down in the primary sedimentation tank, the frame is provided with a liquid spraying assembly, the liquid spraying assembly comprises a plurality of liquid spraying pipes rotatably arranged on the frame, and a liquid inlet pipe connecting all the liquid spraying pipes together, and the liquid spraying pipes are provided with liquid spraying holes, the liquid spraying holes are arranged upward; two sliding seats are slidably arranged on the frame, the liquid spraying pipes are rotatably arranged on the two sliding seats, and the guide rail has a plurality of bending sections , and the opening directions of the upper and lower adjacent bending sections are opposite; the guide slide rail and the spray pipe correspond one to one, and the end of the spray pipe extends in the guide slide rail. When the driving component drives the frame to move up and down, the bending section can drive the sliding seat to reciprocate in the horizontal direction. The first meshing layers are alternately arranged on the two opposite inner walls of the bending section, and the outer wall of the end of the spray pipe is provided with a meshing wheel. When the spray pipe moves on the guide slide rail, the meshing wheel can alternately mesh with the first meshing layers on different inner walls and rotate, thereby driving the reciprocating rotation of the spray pipe.

[0007] By adopting the above technical solution, when the frame moves up and down, the liquid spraying pipe can slide back and forth in the horizontal direction of the frame, and the liquid spraying pipe can rotate back and forth, thereby increasing the movement range of the agent and further improving the sewage treatment effect.

[0008] Optionally, the liquid inlet pipe includes a connecting portion and a water inlet portion arranged on the connecting portion, the connecting portion is an internal hollow structure, and the liquid spray pipe rotates and passes through the connecting portion, and part of the liquid spray holes are located in the inner cavity of the connecting portion.

[0009] By adopting the above technical solution, the water inlet is connected to the external water source, the pharmaceutical solution enters the connection part and then enters the liquid spraying pipe, and finally sprays out from the liquid spraying hole.

[0010] Optionally, the driving assembly includes guide rails located on both sides of the frame, threaded rods rotatably disposed in the guide rails, and guide seats disposed on side walls of the frame, wherein the guide seats extend in the guide rails and are threadedly connected to the threaded rods.

[0011] By adopting the above technical solution, the threaded rod rotates to drive the frame to move up and down.

[0012] Optionally, a protrusion is provided on the lower surface of the sliding seat, a sliding groove is provided on the frame surface for the protrusion to slide, and a first elastic member is provided on both sides of the protrusion, and one end of the first elastic member away from the protrusion is connected to the inner end surface of the sliding groove.

[0013] By adopting the above technical solution, the sliding seat can be slidably installed on the frame through the cooperation of the protrusion and the sliding groove.

[0014] Optionally, the spray pipe includes a spray section and a connecting section connected to both ends of the spray section, the connecting section rotates on the sliding seat and the meshing wheel is arranged on the connecting section; the spray section and the connecting section are rotatably connected, and a locking piece is arranged between the spray section and the connecting section, the locking piece is used to connect the connecting section and the spray section so that the connecting section synchronously drives the spray section to rotate; a vertical section is arranged at the lower end of the guide slide rail, and a second meshing layer is arranged on the inner wall of one side of the vertical section; an unlocking piece is arranged on the frame, and when the frame moves downward, the meshing wheel and the second meshing layer mesh, so that the spray pipe rotates to a state where the spray hole is facing downward, and the unlocking piece can release the positioning effect of the locking piece on the spray section and the connecting section, so that the spray section can rotate independently relative to the connecting section; the deodorizing device also includes a power component for driving the spray section to reciprocate on the frame.

[0015] By adopting the above technical solution, the primary sedimentation tank needs to be cleaned. During cleaning, the frame moves downward, and after the connecting section moves to the vertical section, the meshing wheel and the second meshing layer cooperate to make the spray pipe move downward with the spray hole facing downward. At this time, the chemical water source is replaced with tap water or other water sources, that is, the bottom of the primary sedimentation tank can be flushed through the spray pipe; the power component drives the spray section to rotate reciprocatingly, thereby further improving the flushing effect.

[0016] Optionally, the locking member includes a locking cylinder slidably mounted on the outer wall of the spray section and a second elastic member connected between the locking cylinder and the spray section; limit strips are arranged at intervals on the outer wall of the connecting section, and a limit groove for inserting the limit strip is provided on the inner wall of the locking cylinder. When the frame moves downward, the unlocking member can drive the locking cylinder to slide in a direction away from the connecting section so that the limit strip is disengaged from the limit groove, and the second elastic member provides a force for resetting the locking cylinder.

[0017] By adopting the above technical solution, when the locking cylinder connects the spray section and the connecting section together, the rotation of the connecting section synchronously drives the spray section to rotate. After the locking cylinder and the connecting section are separated, the spray section can rotate independently.

[0018] Optionally, the unlocking member includes a trigger plate slidably arranged on the bottom surface of the frame and a trigger bar arranged on the trigger plate, the trigger bar and the locking cylinder correspond one to one and are slidably passed through the frame; a third elastic member is arranged between the trigger plate and the frame, and the trigger plate partially extends in the guide rail, when the frame moves downward, the trigger plate can be pressed against the inner bottom surface of the guide rail and the distance between the trigger plate and the frame becomes smaller and smaller; a trigger ring is arranged on the outer wall of the locking cylinder, the upper end of the trigger bar has an inclined surface, when the trigger bar moves upward relative to the frame, the trigger bar drives the trigger ring to slide in a direction away from the connecting section.

[0019] By adopting the above technical solution, when the trigger plate moves toward the frame, the trigger bar contacts the trigger ring and pushes the locking cylinder to slide, thereby separating the locking cylinder and the connecting section.

[0020] Optionally, a positioning column is provided on the trigger plate, the frame is provided with a mounting groove for the positioning column to slide, and the third elastic member is installed in the mounting groove.

[0021] By adopting the above technical solution, the stability of the connection between the trigger plate and the frame is improved, and the trigger plate is facilitated to move downward and reset under the action of the third elastic member.

[0022] Optionally, the power assembly includes a power bar slidably arranged on the surface of the frame and a power source installed on the side wall of the primary sedimentation tank and used to drive the power bar to slide back and forth; the side wall of the spray section is provided with a gear, and the upper surface of the power bar is evenly provided with teeth and meshes with the gear.

[0023] By adopting the above technical solution, the power source drives the power bar to reciprocate, thereby driving the liquid spraying section to reciprocate through the gear.

[0024] Optionally, a receiving groove is provided on the surface of the frame, an extension block is provided on the lower surface of the power bar, and fourth elastic members are provided on both sides of the extension block.

[0025] In summary, the present application includes at least one of the following beneficial effects: 1. The liquid spray pipe can slide back and forth relatively in the horizontal direction of the frame, and can rotate back and forth during the sliding process, thereby increasing the spray range of the liquid spray pipe and thus improving the sewage treatment effect; 2. The frame moves downward, the liquid spraying pipe can be rotated to the point where the liquid spraying hole faces downward, and the liquid spraying section can be driven to rotate back and forth by the power assembly, thereby flushing the bottom of the primary sedimentation tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the state of the embodiment of the present application in the primary sedimentation tank; Figure 2 It is a schematic diagram of the structure of an embodiment of the present application; Figure 3 It is a schematic diagram of a framework in an embodiment of the present application; Figure 4 is a schematic diagram of a guide rail in an embodiment of the present application; Figure 5 is an exploded schematic diagram of a frame in an embodiment of the present application; Figure 6 is a schematic diagram of a liquid spray pipe in an embodiment of the present application; Figure 7 yes Figure 6 A magnified schematic diagram of center A.

[0027] Description of the accompanying drawings: 1. primary settling tank; 2. frame; 3. guide rail; 31. bending section; 32. vertical section; 4. driving assembly; 41. guide rail; 42. threaded rod; 43. guide seat; 5. liquid spraying assembly; 51. liquid spraying pipe; 511. liquid spraying section; 512. connecting section; 52. liquid inlet pipe; 521. connecting part; 522. water inlet part; 6. liquid spraying hole; 7. sliding seat; 8. first meshing layer; 9. meshing wheel; 11. protrusion; 12. slide groove; 13. A first elastic member; 14, a locking member; 141, a locking cylinder; 142, a second elastic member; 15, a second meshing layer; 16, an unlocking member; 161, a trigger plate; 162, a trigger bar; 163, an inclined surface; 17, a limiting bar; 18, a limiting groove; 19, a trigger ring; 20, a positioning column; 22, a third elastic member; 23, a power assembly; 231, a power bar; 232, a power source; 233, a gear; 24, a receiving groove; 25, an extension block; 26, a fourth elastic member. DETAILED DESCRIPTION

[0028] The present application is further described in detail below in conjunction with the accompanying drawings.

[0029] The present application discloses a deodorizing device for a primary sedimentation tank for domestic sewage. Figure 1 and Figure 2 The deodorizing device is arranged in the primary sedimentation tank 1. After the agent is diluted, it is sent to the primary sedimentation tank 1 through the deodorizing device to treat the sewage. The deodorizing device includes a frame 2, guide rails 3 located on both sides of the frame 2, and a driving assembly 4. The driving assembly 4 is used to drive the frame 2 to move up and down in the primary sedimentation tank 1, and a liquid spraying assembly 5 is installed on the frame 2, and the agent is sprayed into the sewage through the liquid spraying assembly 5. The up and down movement of the frame 2 can increase the spraying range of the agent in the primary sedimentation tank 1 and improve the treatment effect on the sewage.

[0030] Reference Figure 2 and Figure 3The frame 2 is a square frame structure, and the liquid spraying assembly 5 includes a plurality of liquid spraying pipes 51 rotatably mounted on the frame 2 and a liquid inlet pipe 52 connected to all the liquid spraying pipes 51. The liquid spraying pipes 51 are arranged in parallel with each other and are spaced apart along the length direction of the frame 2. In this embodiment, three liquid spraying pipes 51 are used as an example for description. Liquid spraying holes 6 are provided on the liquid spraying pipes 51, and the medicine is supplied into the liquid spraying pipes 51 through the liquid inlet pipe 52 and then sprayed out from the liquid spraying holes 6. In the process of the frame 2 moving up and down, the liquid spraying holes 6 are arranged upward, and the medicine is sprayed from bottom to top.

[0031] Reference Figure 2 and Figure 4 Two sliding seats 7 are slidably arranged on the frame 2, and the two ends of each liquid spraying pipe 51 are rotatably connected between the two sliding seats 7 by bearings or the like. The guide rails 3 are respectively matched with the two ends of the liquid spraying pipe 51, and the ends of the liquid spraying pipe 51 extend into the guide rails 3. The guide rails 3 are arranged vertically, and a space for installing the guide rails 3 is provided on the inner wall of the primary sedimentation tank 1, thereby realizing the installation and positioning of the guide rails 3. The guide rails 3 include a plurality of bending sections 31, and the openings of the upper and lower adjacent bending sections 31 face opposite directions, so that the guide rails 3 present an S-shaped curved structure. During the up and down movement of the frame 2, the liquid spraying pipe 51 will slide back and forth relatively in the horizontal direction along with the guide rails 3, and drive the sliding seat 7 to slide on the frame 2, so that the movement path of the liquid spraying pipe 51 also presents an S-shaped structure, thereby increasing the range of the spray.

[0032] Further, see Figure 5 A protrusion 11 is fixed on the bottom surface of the sliding seat 7, and the protrusion 11 is in a dovetail structure. A slide groove 12 for the protrusion 11 to slide is provided on the frame 2, and the slide groove 12 is adapted to the protrusion 11. The slide seat 7 is slidably connected to the frame 2 through the cooperation of the protrusion 11 and the slide groove 12. First elastic members 13 are provided on both sides of the protrusion 11. The first elastic members 13 are springs to improve the stability of the sliding of the sliding seat 7, and the two first elastic members 13 provide a force for the sliding seat 7 to reset, which is conducive to the sliding of the sliding seat 7.

[0033] In a further embodiment, referring to Figure 3 and Figure 4In order to improve the spraying range of the liquid spraying pipe 51, the first meshing layers 8 are fixed at intervals on the relative inner walls of the guide rail 3. A meshing wheel 9 is coaxially fixed to the outer wall of one end of the liquid spraying pipe 51 extending in the guide rail 3. The meshing wheel 9 can be a gear 233, and the first meshing layer 8 is a tooth surface with teeth arranged at intervals, and can mesh with the meshing wheel 9. When the liquid spraying pipe 51 moves in the guide rail 3, it first meshes with one of the first meshing layers 8, so that the liquid spraying pipe 51 can rotate, and then continues to mesh with the first meshing layer 8 on the other inner wall, so that the liquid spraying pipe 51 can rotate back and forth during the up and down movement, thereby improving the range and angle of the medicine spraying.

[0034] Reference Figure 3 The liquid inlet pipe 52 includes a connecting portion 521 and a water inlet portion 522 connected to the connecting portion 521. The connecting portion 521 is a long strip structure with a hollow interior. The liquid spraying pipe 51 is rotatably arranged in the connecting portion 521, and part of the liquid spraying hole 6 is located in the inner cavity of the connecting portion 521. The water inlet portion 522 is a hose-like structure, and the water inlet portion 522 is connected to an external pumped water source, that is, the water source can be sent into the connecting portion 521, then into the liquid spraying pipe 51, and finally sprayed out from the liquid spraying hole 6.

[0035] Reference Figure 2 and Figure 3 The driving assembly 4 includes guide rails 41 located on both sides of the frame 2, and the guide rails 41 are vertically installed on the inner wall of the primary sedimentation tank 1. A threaded rod 42 is vertically rotatably arranged in the guide rail 41, and the upper end of the threaded rod 42 passes through the upper end of the guide rail 41 and is connected to a motor, which is used to drive the rotation of the threaded rod 42. A guide seat 43 is fixed on the side wall of the frame 2, and the guide seat 43 extends in the guide rail 41 and is threadedly connected to the threaded rod 42. The two threaded rods 42 rotate synchronously, which can drive the frame 2 to move up and down.

[0036] Reference Figure 3 and Figure 6 The liquid spraying pipe 51 includes a liquid spraying section 511 and a connecting section 512 rotatably connected to both ends of the liquid spraying section 511. The connecting section 512 is rotatably connected to the sliding seat 7, and the meshing wheel 9 is installed on the connecting section 512. The liquid spraying section 511 is a hollow structure and the liquid spraying hole 6 is provided on the liquid spraying section 511. The connecting section 512 and the liquid spraying section 511 are rotatably connected by means of an annular groove, an annular convexity or a small bearing. A locking member 14 is provided between the connecting section 512 and the liquid spraying section 511. The locking member 14 can connect the liquid spraying section 511 and the connecting section 512 together, so that the connecting section 512 rotates synchronously to drive the liquid spraying section 511 to rotate. When the locking member 14 releases the connection state between the connecting section 512 and the liquid spraying section 511, the liquid spraying section 511 and the connecting section 512 can rotate independently.

[0037] Reference Figure 3 and Figure 4 , a vertical section 32 is vertically arranged at the lower end of the guide rail 3, and a second meshing layer 15 is arranged on one of the inner walls of the vertical section 32. When the connecting section 512 moves downward in the vertical section 32, the meshing wheel 9 meshes with the second meshing layer 15, so that the connecting section 512 drives the liquid spraying section 511 to rotate, and rotates about 180 degrees, so that the liquid spraying hole 6 faces downward. At this time, the medicinal water source connected to the liquid inlet pipe 52 is replaced with a water source such as tap water, and water is supplied at this time, and the water sprayed by the liquid spraying section 511 can flush the bottom of the primary sedimentation tank 1. Therefore, when the primary sedimentation tank 1 has been used for a period of time, a lot of silt and other sediments are deposited at the bottom, and the sediments can be flushed through the liquid spraying section 511.

[0038] Furthermore, the frame 2 is provided with an unlocking member 16, which can release the effect of the locking member 14 connecting the connecting section 512 and the liquid spraying section 511 together. The deodorizing device also includes a power assembly 23, which is used to drive the liquid spraying section 511 to rotate back and forth, so that the liquid spraying section 511 can have a larger flushing range when flushing the primary sedimentation tank 1, and the flushing cleaning effect is also better. When the power assembly 23 drives the liquid spraying section 511 to rotate, the locking member 14 releases the locking effect, and the liquid spraying section 511 can rotate relative to the connecting section 512.

[0039] Reference Figure 6 and Figure 7 The locking member 14 includes a locking cylinder 141 slidably mounted on the outer wall of the liquid spraying section 511, and a second elastic member 142 connected between the locking cylinder 141 and the surface of the liquid spraying section 511. A guide block guide groove structure can be set between the liquid spraying section 511 and the locking cylinder 141, so that the locking cylinder 141 can only slide axially on the outer wall of the liquid spraying section 511 without rotating. Limiting strips 17 are arranged at intervals on the outer wall of the connecting section 512, and the end of the limiting strip 17 close to the locking cylinder 141 is a rounded structure. A limiting groove 18 for the limiting strip 17 to be inserted is provided on the inner wall of the locking cylinder 141, and the second elastic member 142 drives the locking cylinder 141 to be mounted on the outer wall of the connecting section 512 and the limiting strip 17 is inserted into the limiting groove 18. Therefore, the rotation of the connecting section 512 synchronously drives the liquid spraying section 511 to rotate. When the frame 2 moves downward, the unlocking member 16 drives the locking cylinder 141 to slide in a direction away from the connecting section 512 until it is separated from the connecting section 512. Therefore, when the power assembly 23 drives the spray section 511 to rotate, the connecting section 512 no longer interferes with the rotation of the spray section 511.

[0040] Reference Figure 5 and Figure 6The unlocking member 16 includes a trigger plate 161 slidably disposed on the lower surface of the frame 2 and a trigger bar 162 fixed on the trigger plate 161. The trigger bar 162 corresponds to the liquid spraying section 511 one by one. A third elastic member 22 is disposed between the frame 2 and the trigger plate 161. There is a certain distance between the trigger plate 161 and the frame 2. A portion of the trigger plate 161 extends into the guide rail 41, and the threaded rod 42 slides through the portion of the trigger plate 161 in the guide rail 41. When the frame 2 moves downward, the trigger plate 161 contacts the inner bottom surface of the guide rail 41, and the frame 2 continues to move downward, and the trigger plate 161 moves upward relative to the frame 2. A trigger ring 19 is coaxially fixed to the outer wall of the locking cylinder 141, and a trigger bar 162 is slidably passed through the frame 2 and an upper end of the trigger bar 162 has an inclined surface 163. When the frame 2 moves downward, the trigger bar 162 can abut against the trigger ring 19 and drive the locking cylinder 141 to slide through the inclined surface 163, so that the locking cylinder 141 and the connecting section 512 are separated.

[0041] Referring to the figure, a positioning column 20 is fixed on the trigger plate 161, and a mounting groove (not shown in the figure) for sliding the positioning column 20 is provided on the lower surface of the frame 2. The third elastic member 22 is installed in the mounting groove. The third elastic member 22 is a spring, one end of which is fixed to the positioning column 20, and the other end is fixed to the inner end surface of the mounting groove. When the trigger plate 161 is pressed and slides, the third elastic member 22 is compressed.

[0042] Reference Figure 2 , 3 and Figure 4 The power assembly 23 includes a power bar 231 slidably mounted on the upper surface of the frame 2 and a power source 232 for driving the power bar 231 to slide. The power bar 231 is located below the liquid spraying section 511, and the upper surface of the power bar 231 is evenly provided with teeth, so as to present a rack-like structure. The outer wall of the liquid spraying section 511 is provided with a gear 233, and the gear 233 and the power bar 231 are meshed with each other. The power source 232 is two cylinders or telescopic cylinders. When the frame 2 moves to the position corresponding to the vertical section 32, the liquid spraying section 511 rotates to a state where the liquid spraying hole 6 faces downward, and at this time, the power source 232 is respectively located at both ends of the power bar 231. The power source 232 is installed on the outer wall of the primary sedimentation tank 1, and the piston rod slides through the side wall of the primary sedimentation tank 1. One of the piston rods pushes the power bar 231 to slide, and the other piston rod moves back. The two cylinders act alternately, thereby pushing the reciprocating sliding of the power bar 231, thereby driving the reciprocating rotation of the liquid spraying section 511. Therefore, the flushing range and angle of the liquid spraying section 511 can be expanded, thereby improving the flushing effect on the bottom surface of the primary sedimentation tank 1.

[0043] Reference Figure 5, a receiving groove 24 is provided on the surface of the frame 2, and an extension block 25 is fixed on the lower surface of the power bar 231, and the extension block 25 slides in the receiving groove 24. The receiving groove 24 can be a dovetail structure, and the extension block 25 and the receiving groove 24 are adapted to each other, so as to improve the sliding stability of the power bar 231. Furthermore, fourth elastic members 26 are connected to both sides of the extension block 25, and the fourth elastic member 26 is a spring, and one end of the fourth elastic member 26 is connected to the extension block 25, and the other end is connected to the inner end surface of the receiving groove 24. Under the action of the two fourth elastic members 26, the initial position of the power bar 231 can be maintained, and when the liquid spraying section 511 rotates with the connecting section 512, the power bar 231 can slide along with it.

[0044] The implementation principle of the deodorizing device for the primary sedimentation tank 1 of domestic sewage in the embodiment of the present application is as follows: during the up and down movement of the frame 2 in the bending section 31 of the guide rail 3, the liquid spraying section 511 can reciprocate with the connecting section 512, and the agent is sprayed from bottom to top, thereby deodorizing the sewage and promoting the suspended matter in the sewage to float on the surface. When flushing the primary sedimentation tank 1, the liquid spraying pipe 51 is connected to the external water source, the frame 2 moves downward along the vertical section 32, the liquid spraying section 511 turns to the liquid spraying hole 6 facing downward, and the reciprocating movement of the power bar 231 drives the liquid spraying section 511 to reciprocate, thereby improving the flushing effect.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A deodorizing device for a primary sedimentation tank for domestic sewage, characterized in that: The invention comprises a frame (2), guide rails (3) located on both sides of the frame (2), and a driving assembly (4); the driving assembly (4) is used to drive the frame (2) to move up and down in the primary sedimentation tank (1); the frame (2) is provided with a liquid spraying assembly (5), the liquid spraying assembly (5) comprises a plurality of liquid spraying pipes (51) rotatably arranged on the frame (2), and a liquid inlet pipe (52) connecting all the liquid spraying pipes (51) together; the liquid spraying pipes (51) are provided with liquid spraying holes (6), and the liquid spraying holes (6) are arranged upward; two sliding seats (7) are slidably arranged on the frame (2), the liquid spraying pipes (51) are rotatably arranged on the two sliding seats (7), and the guide rail (3) has a plurality of bending sections (31). , and the opening directions of the upper and lower adjacent bent sections (31) are opposite; the guide rail (3) and the spray pipe (51) correspond one to one, and the end of the spray pipe (51) extends into the guide rail (3); when the drive assembly (4) drives the frame (2) to move up and down, the bent section (31) can drive the sliding seat (7) to reciprocate in the horizontal direction; first meshing layers (8) are alternately arranged on two opposite inner walls of the bent section (31); and a meshing wheel (9) is arranged on the outer wall of the end of the spray pipe (51); when the spray pipe (51) moves on the guide rail (3), the meshing wheel (9) can alternately mesh with the first meshing layers (8) on different inner walls and rotate, thereby driving the spray pipe (51) to reciprocate.

2. A deodorizing device for a primary sedimentation tank for domestic sewage according to claim 1, characterized in that: The liquid inlet pipe (52) comprises a connecting portion (521) and a water inlet portion (522) arranged on the connecting portion (521); the connecting portion (521) is an internal hollow structure, and the liquid spraying pipe (51) is rotatably arranged to pass through the connecting portion (521); part of the liquid spraying holes (6) are located in the inner cavity of the connecting portion (521).

3. A deodorizing device for a primary sedimentation tank for domestic sewage according to claim 2, characterized in that: The driving assembly (4) comprises guide rails (41) located on both sides of the frame (2), a threaded rod rotatably disposed in the guide rails (41), and a guide seat (43) disposed on a side wall of the frame (2); the guide seat (43) extends in the guide rails (41) and is threadably connected to the threaded rod.

4. A deodorizing device for a primary sedimentation tank for domestic sewage according to claim 3, characterized in that: A protrusion (11) is provided on the lower surface of the sliding seat (7), a sliding groove (12) for the protrusion (11) to slide is provided on the surface of the frame (2), and first elastic members (13) are provided on both sides of the protrusion (11), and one end of the first elastic member (13) away from the protrusion (11) is connected to the inner end surface of the sliding groove (12).

5. A deodorizing device for a primary sedimentation tank for domestic sewage according to claim 4, characterized in that: The liquid spraying pipe (51) comprises a liquid spraying section (511) and connecting sections (512) connected to both ends of the liquid spraying section (511); the connecting section (512) is rotatable on the sliding seat (7) and the meshing wheel (9) is arranged on the connecting section (512); the liquid spraying section (511) and the connecting section (512) are rotatably connected, and a locking member (14) is arranged between the liquid spraying section (511) and the connecting section (512); the locking member (14) is used to connect the connecting section (512) and the liquid spraying section (511) so that the connecting section (512) synchronously drives the liquid spraying section (511) to rotate; the lower end of the guide slide rail (3) is provided with a vertical section (32) , and a second meshing layer (15) is provided on one side inner wall of the vertical section (32); an unlocking member (16) is provided on the frame (2); when the frame (2) moves downward, the meshing wheel (9) and the second meshing layer (15) mesh, so that the liquid spraying pipe (51) rotates to a state where the liquid spraying hole (6) faces downward, and the unlocking member (16) can release the positioning effect of the locking member (14) on the liquid spraying section (511) and the connecting section (512), so that the liquid spraying section (511) can rotate independently relative to the connecting section (512); the deodorizing device also includes a power assembly (23) for driving the liquid spraying section (511) to reciprocate on the frame (2).

6. A deodorizing device for a primary sedimentation tank for domestic sewage according to claim 5, characterized in that: The locking member (14) comprises a locking cylinder (141) slidably mounted on the outer wall of the liquid spraying section (511) and a second elastic member (142) connected between the locking cylinder (141) and the liquid spraying section (511); a limit strip (17) is arranged at intervals on the outer wall of the connecting section (512); a limit groove (18) for inserting the limit strip (17) is provided on the inner wall of the locking cylinder (141); when the frame (2) moves downward, the unlocking member (16) can drive the locking cylinder (141) to slide in a direction away from the connecting section (512), so that the limit strip (17) is disengaged from the limit groove (18), and the second elastic member (142) provides a force for resetting the locking cylinder (141).

7. A deodorizing device for a primary sedimentation tank for domestic sewage according to claim 6, characterized in that: The unlocking member (16) comprises a trigger plate (161) slidably disposed on the bottom surface of the frame (2) and a trigger bar (162) disposed on the trigger plate (161), wherein the trigger bar (162) corresponds to the locking cylinder (141) one by one and is slidably disposed through the frame (2); a third elastic member (22) is disposed between the trigger plate (161) and the frame (2), and the trigger plate (161) partially extends into the guide rail (41). When the frame (2) is unlocked, the trigger bar (162) is in a one-to-one correspondence with the locking cylinder (141). When the frame (2) moves downward, the trigger plate (161) can be pressed against the inner bottom surface of the guide rail (41) and the distance between the trigger plate (161) and the frame (2) becomes smaller and smaller; the outer wall of the locking cylinder (141) is provided with a trigger ring (19), and the upper end of the trigger bar (162) has an inclined surface (163); when the trigger bar (162) moves upward relative to the frame (2), the trigger bar (162) drives the trigger ring (19) to slide in a direction away from the connecting section (512).

8. A deodorizing device for a primary sedimentation tank for domestic sewage according to claim 7, characterized in that: A positioning column (20) is provided on the trigger plate (161), the frame (2) is provided with a mounting groove for the positioning column (20) to slide, and the third elastic member (22) is installed in the mounting groove.

9. A deodorizing device for a primary sedimentation tank for domestic sewage according to claim 7, characterized in that: The power assembly (23) comprises a power bar (231) slidably arranged on the surface of the frame (2) and a power source (232) installed on the side wall of the primary sedimentation tank (1) and used to drive the power bar (231) to slide back and forth; a gear (233) is arranged on the side wall of the liquid spraying section (511), and teeth are evenly arranged on the upper surface of the power bar (231) and mesh with the gear (233).

10. A deodorizing device for a primary sedimentation tank for domestic sewage according to claim 9, characterized in that: The frame (2) has a receiving groove (24) on its surface, an extension block (25) is provided on the lower surface of the power bar (231), and fourth elastic members (26) are provided on both sides of the extension block (25).

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