Multi-depth backflushing self-cleaning type sampling device for water environment

Abstract

The invention belongs to the technical field of water environments, and particularly relates to a multi-depth backflushing self-cleaning sampling device for a water environment, which comprises a sampler body, and a disc is fixedly connected in the sampler body. Through mutual cooperation of a filtering assembly, a cleaning assembly and a limiting assembly, water entering a filtering box can be sequentially filtered by a filtering plate and a purifying plate, then the water is sequentially conveyed into a water inlet pipe, a telescopic pipe, a rotary sealing joint, a conveying pipe and a sampler body through a water suction pump, and then a second telescopic air cylinder is started; a second telescopic air cylinder can drive a round block and a cleaning brush to move towards the bottom, when an abutting block enters a containing groove, the bottom of the round block makes contact with the top of an elastic block, at the moment, due to the fact that the abutting block bears the elastic force of a third spring, the abutting block can reset to limit the round block, and then the second telescopic air cylinder and a motor continue to be started; therefore, the cleaning brush can realize up-down reciprocating cleaning of impurities in the sampler body.

Description

Technical Field

[0001] The present invention belongs to the technical field of water environment sampling, and particularly relates to a multi-depth backwashing and self-cleaning sampling device for water environment. Background Art

[0002] In order to objectively observe the condition of the water environment, it is necessary to frequently sample and detect the water body to determine whether there is pollution in the water environment. A sampler is required when sampling the water environment. However, when the existing water environment sampler samples, when encountering a deeper water source, water is pumped into the sampler for detection through a water pump, etc. When detecting a relatively low-lying water source, the sampler can be directly placed in the water for sampling. However, when sampling different depths of water areas multiple times, the sampling personnel still need to often wear clean water sources to flush the inside of the sampler. Wearing water sources not only increases the work intensity of the sampling personnel, but also causes waste of the clean water source for cleaning the sampler. When there is a shortage of clean water sources, the inside of the sampler cannot be cleaned immediately, resulting in deviation of the detection results. Therefore, it is necessary to propose a multi-depth backwashing and self-cleaning sampling device for water environment. Summary of the Invention

[0003] The present invention is proposed to solve the above deficiencies, and the purpose is to provide a multi-depth backwashing and self-cleaning sampling device for water environment. Through the mutual cooperation of the filtering component, the cleaning component and the limiting component, the water entering the inside of the filtering box can be filtered by the filter plate and the purification plate in sequence, and then the water is transported to the inside of the water inlet pipe, the telescopic pipe, the rotary seal joint, the delivery pipe and the sampler body through the water pump in sequence. Then, the second telescopic cylinder is started, and the second telescopic cylinder will drive the round block and the cleaning brush to move downward. When the abutting block enters the placement groove, the bottom of the round block will contact the top of the elastic block. At this time, since the abutting block receives the elastic force of the third spring, it will reset to limit the round block. Then, the second telescopic cylinder and the motor are started continuously, so that the cleaning brush can achieve the advantage of reciprocating up and down to clean the impurities inside the sampler body.

[0004] To achieve the above purpose, the present invention adopts the following solutions:

[0005] A multi-depth backwashing and self-cleaning sampling device for water environment, a disc is fixedly connected inside the sampler body, a water pump is fixedly connected to the bottom of the inner wall of the sampler body, the water inlet end of the water pump is communicated with a water inlet pipe, the top of the water inlet pipe is communicated with a telescopic pipe, the top of the telescopic pipe is communicated with a rotary seal joint, and the top of the rotary seal joint is communicated with a delivery pipe; the water pump realizes the extraction and transportation of water samples through the water inlet pipe, the telescopic pipe, the rotary seal joint and the delivery pipe;

[0006] The top of the conveying pipe penetrates through to the top of the disc. A filter box is fixedly connected to the surface of the sampler body. A plurality of water inlet grooves are formed on the right side of the filter box. A filter assembly for filtering water is arranged inside the filter box; A cleaning assembly for cleaning the inner wall of the sampler body is arranged inside the sampler body;

[0007] A round block is slidably connected to the top surface of the conveying pipe. A limiting assembly for limiting the round block is arranged on the side of the filter box. An inclined plate is fixedly connected to the top of the disc. A connecting rod is fixedly connected to the top of the conveying pipe.

[0008] As a preferred embodiment, the filter assembly includes a purification plate and a filter plate. The filter plate is located on the side of the purification plate. A connecting plate is arranged inside the filter box. The bottom of the connecting plate is fixedly connected to the tops of the purification plate and the filter plate;

[0009] A screw rod is threadedly connected to the top of the connecting plate. The top of the screw rod is movably connected to a connecting block through a bearing. A connecting groove is formed on the back of the connecting block. A limiting block is slidably connected inside the connecting groove;

[0010] A first spring is fixedly connected to the top of the connecting block. The top of the first spring is fixedly connected to the inner top wall of the filter box. A first telescopic cylinder is fixedly connected to the rear side of the inner top wall of the filter box. The telescopic end of the first telescopic cylinder is fixedly connected to a limiting plate. A pushing block is fixedly connected to the front side of the limiting plate. The top of the pushing block contacts the bottom of the limiting block.

[0011] As a preferred embodiment, a round rod is slidably connected inside the limiting block. The front end of the round rod is fixedly connected to the front side of the inner wall of the connecting groove. A second spring is sleeved on the surface of the round rod;

[0012] The front end of the second spring is fixedly connected to the front side of the inner wall of the connecting groove. The rear end of the second spring is fixedly connected to the front side of the limiting block.

[0013] As a preferred embodiment, an L-shaped block is fixedly connected to the left side of the inner wall of the filter box. The bottom of the L-shaped block contacts the top of the limiting block. The L-shaped block and the limiting block are used in cooperation.

[0014] As a preferred embodiment, the cleaning assembly includes a placement plate. A servo motor is fixedly connected to the top of the placement plate. Synchronous belt wheels are fixedly connected to the output end of the servo motor and the surface of the conveying pipe respectively. The synchronous belt wheels are connected by a synchronous belt. A second telescopic cylinder is fixedly connected to the top of the placement plate. The top of the second telescopic cylinder is fixedly connected to the bottom of the disc;

[0015] On the front side and the rear side of the top of both sides of the connecting rod, first squares are fixedly connected. Cleaning brushes are arranged on the top of both sides of the connecting rod. The front side and the rear side of the inner side of the cleaning brush are movably connected with the first squares through pin shafts.

[0016] On the front side and the rear side of the bottom of the cleaning brush, second squares are fixedly connected. A connecting rod is arranged at the bottom of the cleaning brush. The front side and the rear side of the top of the connecting rod are movably connected with the second squares through pin shafts. The front side and the rear side of the bottom of the connecting rod are movably connected with round blocks through pin shafts.

[0017] Preferably, stabilizing blocks are fixedly connected to the front side and the rear side of the placing plate. Stabilizing grooves are formed in the front side and the rear side of the inner wall of the sampler body. The outer sides of the stabilizing blocks extend into the interiors of the stabilizing grooves, and the stabilizing blocks are slidably connected with the stabilizing grooves.

[0018] Preferably, the limiting assembly includes a plurality of pressing blocks. A placing groove is formed in the connecting rod. The pressing blocks are located in the placing groove. The outer sides of the pressing blocks penetrate through the outer side of the connecting rod. The tops of the pressing blocks are in contact with the bottoms of the round blocks.

[0019] Preferably, a third spring is arranged in the placing groove. The front end and the rear end of the third spring are fixedly connected to the inner sides of the pressing blocks. The third spring and the pressing blocks are used in cooperation.

[0020] Preferably, a plurality of support rods are fixedly connected to the top of the swash plate. A support block is arranged on the top of the swash plate. The shape of the support block is circular. The support block and the pressing blocks are used in cooperation.

[0021] Rectangular grooves are formed in both sides of the inner wall of the placing groove. L-shaped plates are fixedly connected to both sides of the inner side of the pressing block. The outer sides of the L-shaped plates extend into the interiors of the rectangular grooves and are slidably connected with the rectangular grooves.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] First, through the mutual cooperation of structures such as a filter box, a water pump, a purification plate, and a filter plate, the present invention can start the first telescopic cylinder to drive the connecting block and the limiting block to continue moving upward. When the top of the limiting block contacts the bottom of the L-shaped block, since the top of the limiting block is triangular, when the limiting block contacts the L-shaped block, the limiting block will compress the second spring and enter the connecting groove. Since the connecting block moving upward will compress the first spring, when the limiting block and the push block are disengaged, the connecting block will drive the limiting block, the connecting plate, the filter plate, and the purification plate to move downward. The movement of the purification plate and the filter plate will block the water inlet groove. Then, the water entering the filter box will first filter the impurities inside through the filter plate, and then purify the peculiar smell in the water through the purification plate, so that the water entering the sampler body can be clean water.

[0024] Second, through the mutual cooperation of structures such as a servo motor, a cleaning brush, and a second telescopic cylinder, when the sampler body is filled with clean water, the servo motor can be started. The servo motor starts to drive the conveying pipe to rotate through the synchronous belt. The rotation of the conveying pipe drives the connecting rod, the round block, the cleaning brush, etc. to rotate. The cleaning brush rotates to be in a horizontal state. Since both sides of the cleaning brush are soft brushes, the impurities on the inner wall of the sampler body can be cleaned. Then, the second telescopic cylinder is started, and the second telescopic cylinder will drive the placement plate and the servo motor to move up and down reciprocally. The movement of the servo motor can drive the cleaning brush, etc. to move up and down reciprocally, so that the cleaning brush can brush up and down reciprocally inside the sampler body.

[0025] Third, through the mutual cooperation of a pressing block, a third spring, a support rod, a support block, etc., when the second telescopic cylinder is started, it can drive the placement plate, the servo motor, the rotary seal joint, the conveying pipe, the connecting rod, and the telescopic pipe to move downward. The telescopic pipe moves downward and compresses itself. The connecting rod moves downward and drives the cleaning brush, the connecting rod, and the round block to move downward. The connecting rod moving downward will also drive the pressing block to move downward. Since the bottom of the pressing block is inclined, when the bottom of the pressing block contacts the top of the support block, the pressing block will enter the placement groove. When the bottom of the round block contacts the top of the elastic block, the round block will move upward. When the height of the round block is higher than that of the pressing block, the round block moves and drives the connecting rod to rotate through the pin. The rotation of the connecting rod straightens the cleaning brush. At this time, the telescopic end of the second telescopic cylinder can be retracted. Since the pressing block has been subjected to the elastic force of the third spring, the pressing block will quickly drive the L-shaped plate to move outward to limit the round block, so that the cleaning brush is always in a horizontal state. Then, the servo motor can be started to drive the cleaning brush to always clean the sampler body up and down reciprocally. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is the front view of the sampler body of the present invention;

[0027] Figure 2 Right view of the sampler body of the present invention;

[0028] Figure 3 Cross-sectional view of the sampler body of the present invention;

[0029] Figure 4 Top cross-sectional view of the connecting rod of the present invention;

[0030] Figure 5 Partial structural exploded view of the cleaning component of the present invention;

[0031] Figure 6 Right view of the filter box of the present invention;

[0032] Figure 7 Right-view sectional exploded view of the filter box of the present invention;

[0033] Figure 8 Right-view sectional view of the connecting plate of the present invention;

[0034] Figure 9 For the present invention Figure 7 Enlarged structural view at position A;

[0035] Figure 10 For the present invention Figure 3 Enlarged structural view at position B.

[0036] In the figure: 1. Sampler body; 2. Disc; 3. Water pump; 4. Water inlet pipe; 5. Telescopic pipe; 6. Rotary seal joint; 7. Delivery pipe; 8. Filter box; 9. Water inlet tank; 10. Filter component; 101. Purification plate; 102. Filter plate; 103. Connecting plate; 104. Screw; 105. Connecting block; 106. Connecting groove; 107. Limiting block; 108. First spring; 109. First telescopic cylinder; 1010. Limiting plate; 1011. Pushing block; 1012. Round rod; 1013. Second spring; 11. Cleaning component; 111. Placing plate; 112. Servo motor; 113. Synchronous belt pulley; 114. Second telescopic cylinder; 115. First square block; 116. Cleaning brush; 117. Second square block; 118. Connecting rod; 12. Limiting component; 121. Tightening block; 122. Placing groove; 123. Third spring; 124. Support rod; 125. Support block; 126. Rectangular groove; 127. L-shaped plate; 13. Swash plate; 14. Round block; 15. Connecting rod; 16. L-shaped block; 17. Stabilizing block; 18. Stabilizing groove. Detailed implementation manners

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0038] It should be understood that the accompanying drawings are only for illustrative purposes and cannot be construed as a limitation of this patent; for a better illustration of this embodiment, some components in the drawings will be omitted, enlarged or reduced, which do not represent the actual size of the product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. The positional relationships described in the drawings are only for illustrative purposes and cannot be construed as a limitation of this patent.

[0039] Such as Figures 1 to 10As shown in the figure, the multi-depth backwashing and self-cleaning sampling device for water environment of the present invention includes a sampler body 1. A disc 2 is fixedly connected inside the sampler body 1. A water pump 3 is fixedly connected to the bottom of the inner wall of the sampler body 1. The left end of the water pump 3 is communicated with a water inlet pipe 4. The top of the water inlet pipe 4 is communicated with a telescopic pipe 5. The top of the telescopic pipe 5 is communicated with a rotary seal joint 6. The top of the rotary seal joint 6 is communicated with a conveying pipe 7. The top of the conveying pipe 7 penetrates through to the top of the disc 2. A filter box 8 is fixedly connected to the bottom of the right side of the surface of the sampler body 1. An inlet slot 9 is opened on the right side of the filter box 8. The number of the inlet slots 9 is four. A filter assembly 10 for filtering water is arranged inside the filter box 8. A cleaning assembly 11 for cleaning the inner wall of the sampler body 1 is arranged inside the sampler body 1. A circular block 14 is slidably connected to the top of the surface of the conveying pipe 7. A limiting assembly 12 for limiting the circular block 14 is arranged on the right side of the filter box 8. An inclined disc 13 is fixedly connected to the top of the disc 2. A connecting rod 15 is fixedly connected to the top of the conveying pipe 7. The filter assembly 10 includes a purification plate 101 and a filter plate 102. The filter plate 102 is located on the right side of the purification plate 101. A connecting plate 103 is arranged inside the filter box 8. The bottom of the connecting plate 103 is fixedly connected to the tops of the purification plate 101 and the filter plate 102. A screw rod 104 is threadedly connected to the top of the connecting plate 103. The top of the screw rod 104 is movably connected with a connecting block 105 through a bearing. A connecting slot 106 is opened on the back of the connecting block 105. A limiting block 107 is slidably connected inside the connecting slot 106. A first spring 108 is fixedly connected to the top of the connecting block 105. The top of the first spring 108 is fixedly connected to the top inner wall of the filter box 8. A first telescopic cylinder 109 is fixedly connected to the rear side of the top inner wall of the filter box 8. The telescopic end of the first telescopic cylinder 109 is fixedly connected to a limiting plate 1010. A pushing block 1011 is fixedly connected to the front side of the limiting plate 1010. The top of the pushing block 1011 contacts the bottom of the limiting block 107. A round rod 1012 is slidably connected inside the limiting block 107. The front end of the round rod 1012 is fixedly connected to the front side inner wall of the connecting slot 106. A second spring 1013 is sleeved on the surface of the round rod 1012. The front end of the second spring 1013 is fixedly connected to the front side inner wall of the connecting slot 106. The rear end of the second spring 1013 is fixedly connected to the front side of the limiting block 107. An L-shaped block 16 is fixedly connected to the left side inner wall of the filter box 8. The bottom of the L-shaped block 16 contacts the top of the limiting block 107. The L-shaped block 16 and the limiting block 107 are used in cooperation. Through the mutual cooperation of structures such as the filter box 8, the water pump 3, the purification plate 101 and the filter plate 102, when the bottom of the screw rod 104 contacts the bottom of the connecting plate 103, the screw rod 104 can be rotated to enter into the connecting plate 103. Then the first telescopic cylinder 109 is started. The telescopic end of the first telescopic cylinder 109 will drive the limiting plate 1010 to move upward. The upward movement of the limiting plate 1010 drives the pushing block 1011 to move upward.When the pushing block 1011 moves upward, it drives the limiting block 107 to move upward. The upward movement of the limiting block 107 drives the connecting block 105 to move upward. The movement of the connecting block 105 drives the screw 104, the connecting plate 103, the filter plate 102, and the purification plate 101 to move upward. When the purification plate 101 and the filter plate 102 are higher than the water inlet tank 9, the water pump 3 can be started at this time. The water pump 3 pumps water and delivers it successively to the inside of the water inlet pipe 4, the telescopic pipe 5, the rotary seal joint 6, and the delivery pipe 7. Finally, the water is delivered to the inside of the sampler body 1 through the delivery pipe 7, so that the water can be sampled. When it is necessary to clean the inside of the sampler body 1, the first telescopic cylinder 109 is started continuously at this time. The first telescopic cylinder 109 drives the connecting block 105 and the limiting block 107 to continue to move upward. When the top of the limiting block 107 contacts the bottom of the L-shaped block 16, since the top of the limiting block 107 is triangular, when the limiting block 107 contacts the L-shaped block 16, the limiting block 107 compresses the second spring 1013 and enters the connecting groove 106. Since the upward movement of the connecting block 105 compresses the first spring 108, when the 1011 disengages, the connecting block 105 drives the limiting block 107, the connecting plate 103, the filter plate 102, and the purification plate 101 to move downward. The movement of the purification plate 101 and the filter plate 102 blocks the water inlet tank 9. Then, the water entering the filter box 8 first filters the impurities inside through the filter plate 102, and then purifies the peculiar smell in the water through the purification plate 101, so that the water entering the sampler body 1 is clean water.,

[0040] Such as Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 10As shown in the figure, the cleaning component 11 includes a placement plate 111. A servo motor 112 is fixedly connected to the top of the placement plate 111. Synchronous belt pulleys 113 are fixedly connected to the output end of the servo motor 112 and the surface of the conveying pipe 7 respectively. The synchronous belt pulleys 113 are connected by a synchronous belt. A second telescopic cylinder 114 is fixedly connected to the top of the placement plate 111. The top of the second telescopic cylinder 114 is fixedly connected to the bottom of the disc 2. First squares 115 are fixedly connected to the front and rear sides of the top of both sides of the connecting rod 15. Cleaning brushes 116 are arranged on the top of both sides of the connecting rod 15. The front and rear sides of the inner side of the cleaning brush 116 are movably connected to the first squares 115 through pins. Second squares 117 are fixedly connected to the front and rear sides of the bottom of the cleaning brush 116. A connecting rod 118 is arranged at the bottom of the cleaning brush 116. The front and rear sides of the top of the connecting rod 118 are movably connected to the second squares 117 through pins. The front and rear sides of the bottom of the connecting rod 118 are movably connected to the round blocks 14 through pins. Stabilizing blocks 17 are fixedly connected to the front and rear sides of the placement plate 111. Stabilizing grooves 18 are formed in the front and rear sides of the inner wall of the sampler body 1. The outer sides of the stabilizing blocks 17 extend into the interiors of the stabilizing grooves 18. The stabilizing blocks 17 are slidably connected to the stabilizing grooves 18. Through the mutual cooperation of structures such as the servo motor 112, the cleaning brush 116, and the second telescopic cylinder 114, when the interior of the sampler body 1 is filled with clean water, the servo motor 112 can be started. When the servo motor 112 is started, it drives the conveying pipe 7 to rotate through the synchronous belt. The rotation of the conveying pipe 7 drives the connecting rod 15, the round block 14, the cleaning brush 116, etc. to rotate. When the cleaning brush 116 rotates, it assumes a horizontal state. Since the two sides of the cleaning brush 116 are soft bristle brushes, impurities on the inner wall of the sampler body 1 can be cleaned. Then, the second telescopic cylinder 114 is started. The second telescopic cylinder 114 drives the placement plate 111 and the servo motor 112 to move up and down reciprocally. The movement of the servo motor 112 drives the cleaning brush 116, etc. to move up and down reciprocally. Thus, the cleaning brush 116 can brush up and down reciprocally inside the sampler body 1.

[0041] As Figure 1 , Figure 3 , Figure 4 and Figure 5As shown in the figure, the limit component 12 includes a pressing block 121. A placement groove 122 is formed inside the connecting rod 15. The pressing block 121 is located inside the placement groove 122. The number of pressing blocks 121 is two. The outer sides of the pressing blocks 121 penetrate to the outer side of the connecting rod 15. The top of the pressing block 121 contacts the bottom of the round block 14. A third spring 123 is arranged inside the placement groove 122. The front end and the rear end of the third spring 123 are fixedly connected to the inner sides of the pressing blocks 121 respectively. The third spring 123 and the pressing block 121 are used in cooperation. A support rod 124 is fixedly connected to the top of the swash plate 13. The number of support rods 124 is four. A support block 125 is arranged on the top of the swash plate 13. The shape of the support block 125 is circular. The support block 125 and the pressing block 121 are used in cooperation. Rectangular grooves 126 are formed on both sides of the inner wall of the placement groove 122. L-shaped plates 127 are fixedly connected to both sides of the inner side of the pressing block 121. The outer sides of the L-shaped plates 127 extend into the rectangular grooves 126 and are slidably connected to the rectangular grooves 126. Through the mutual cooperation of the pressing block 121, the third spring 123, the support rod 124, the support block 125, etc., when the second telescopic cylinder 114 is activated, it can drive the placement plate 111 and the servo motor 112 to move downward. The downward movement of the servo motor 112 drives the rotary seal joint 6, the conveying pipe 7, the connecting rod 15 and the telescopic pipe 5 to move downward through the synchronous belt. The downward movement of the telescopic pipe 5 compresses itself. The downward movement of the connecting rod 15 drives the cleaning brush 116, the connecting rod 118 and the round block 14 to move downward. The downward movement of the connecting rod 15 also drives the pressing block 121 to move downward. Since the bottom of the pressing block 121 is inclined, when the bottom of the pressing block 121 contacts the top of the support block 125, the pressing block 121 will enter the placement groove 122. The movement of the pressing block 121 will compress the third spring 123. When the pressing block 121 completely enters the placement groove 122, since the bottom of the round block 14 contacts the top of the elastic block, the round block 14 will move upward. When the height of the round block 14 is higher than that of the pressing block 121, the movement of the round block 14 drives the connecting rod 118 to rotate through the pin. The rotation of the connecting rod 118 straightens the cleaning brush 116. At this time, the telescopic end of the second telescopic cylinder 114 can be retracted. Since the pressing block 121 has been subjected to the elastic force of the third spring 123, the pressing block 121 will quickly drive the L-shaped plate 127 to move outward. When the top of the pressing block 121 contacts the bottom of the round block 14, the round block 14 can be limited at this time, so that the cleaning brush 116 is always in the horizontal state. Then the servo motor 112 can be started to drive the cleaning brush 116 to reciprocate up and down to clean the sampler body 1 all the time. The limit component 12 prevents the driving force of the servo motor 112 from being insufficient, so that the cleaning brush 116 cannot always contact the inner wall of the sampler body 1.

[0042] When working (or in use), first manually rotate the screw rod 104 to limit it to the connecting plate 103. Then, when the user starts the first telescopic cylinder 109, it will drive the limit plate 1010 to move upward. The upward movement of the limit plate 1010 drives the push block 1011 to move upward. The upward movement of the push block 1011 drives the limit block 107 to move upward. The upward movement of the limit block 107 drives the connecting block 105 to move upward. The movement of the connecting block 105 drives the screw rod 104, the connecting plate 103, the filter plate 102, and the purification plate 101 to move upward. When the purification plate 101 and the filter plate 102 are higher than the water inlet tank 9, then start the water pump 3 to pump water and sequentially transport it to the inside of the water inlet pipe 4, the telescopic pipe 5, the rotary seal joint 6, and the delivery pipe 7. Finally, the water will be transported to the inside of the sampler body 1 through the delivery pipe 7. At this time, the water inside the sampler body 1 can be detected. When it is necessary to clean the inner wall of the sampler body 1, continue to start the first telescopic cylinder 109 to drive the connecting block 105 and the limit block 107 to continue moving upward. When the top of the limit block 107 contacts the bottom of the L-shaped block 16, since the top of the limit block 107 is triangular, when the limit block 107 contacts the L-shaped block 16, the upward movement of the connecting block 105 will compress the first spring 108. When the limit block 107 is separated from the push block 1011, the connecting block 105 will drive the limit block 107, the connecting plate 103, the filter plate 102, and the purification plate 101 to move downward. The movement of the purification plate 101 and the filter plate 102 will block the water inlet tank 9. Then, the water entering the filter box 8 will first filter the impurities inside through the filter plate 102, and then purify the peculiar smell in the water through the purification plate 101, so that the water entering the sampler body 1 can be clean water. Then start the second telescopic cylinder 114 to drive the placement plate 111 and the servo motor 112 to move downward. The downward movement of the servo motor 112 drives the rotary seal joint 6, the delivery pipe 7, the connecting rod 15, and the telescopic pipe 5 to move downward through the synchronous belt. The downward movement of the telescopic pipe 5 compresses itself. The downward movement of the connecting rod 15 drives the cleaning brush 116, the connecting rod 118, and the round block 14 to move downward. The downward movement of the connecting rod 15 also drives the pressing block 121 to move downward. Since the bottom of the pressing block 121 is inclined, when the bottom of the pressing block 121 contacts the top of the support block 125, the pressing block 121 will enter the placement groove 122. When the bottom of the round block 14 contacts the top of the elastic block, the round block 14 will move upward. When the height of the round block 14 is higher than that of the pressing block 121, the movement of the round block 14 drives the connecting rod 118 to rotate through the pin. The rotation of the connecting rod 118 straightens the cleaning brush 116. At this time, the telescopic end of the second telescopic cylinder 114 can be retracted. Since the pressing block 121 has been subjected to the elastic force of the third spring 123, the pressing block 121 will quickly drive the L-shaped plate 127 to move outward. When the top of the pressing block 121 contacts the bottom of the round block 14, the round block 14 can be limited at this time.Finally, start the servo motor 112 to drive the conveying pipe 7, the connecting rod 15, the round block 14, the cleaning brush 116, etc. to rotate through the synchronous belt, so that the sampler body 1 can be reciprocally cleaned up and down continuously.

[0043] The above embodiments are only illustrative examples of the technical solutions of the present invention. The present invention is not limited to what is described in the above embodiments, but is subject to the scope defined by the claims. Any modification, supplement or equivalent replacement made by those skilled in the art to which the present invention pertains on the basis of this embodiment falls within the scope protected by the claims of the present invention.

Claims

1. A multi-depth backwashing and self-cleaning sampling device for water environment. Inside the sampler body (1), a disc (2) is fixedly connected. At the bottom of the inner wall of the sampler body (1), a water pump (3) is fixedly connected. The water inlet end of the water pump (3) is communicated with a water inlet pipe (4). The top of the water inlet pipe (4) is communicated with a telescopic pipe (5). The top of the telescopic pipe (5) is communicated with a rotary sealing joint (6). The top of the rotary sealing joint (6) is communicated with a delivery pipe (7). The water pump (3) realizes the extraction and delivery of water samples through the water inlet pipe (4), the telescopic pipe (5), the rotary sealing joint (6) and the delivery pipe (7). The top of the delivery pipe (7) penetrates through to the top of the disc (2). On the surface of the sampler body (1), a filter box (8) is fixedly connected. On the right side of the filter box (8), a plurality of water inlet grooves (9) are provided. Inside the filter box (8), a filter assembly (10) for filtering water is arranged. Inside the sampler body (1), a cleaning assembly (11) for cleaning the inner wall of the sampler body (1) is arranged. On the top surface of the delivery pipe (7), a round block (14) is slidably connected. On the side of the filter box (8), a limiting assembly (12) for limiting the round block (14) is arranged. On the top of the disc (2), an inclined disc (13) is fixedly connected. On the top of the delivery pipe (7), a connecting rod (15) is fixedly connected.

2. The multi-depth backwashing self-cleaning sampling device for water environment according to claim 1, wherein: The filter assembly (10) includes a purification plate (101) and a filter plate (102). The filter plate (102) is located on the side of the purification plate (101). Inside the filter box (8), a connecting plate (103) is arranged. The bottom of the connecting plate (103) is fixedly connected to the tops of the purification plate (101) and the filter plate (102). On the top of the connecting plate (103), a screw rod (104) is threadedly connected. The top of the screw rod (104) is movably connected to a connecting block (105) through a bearing. On the back of the connecting block (105), a connecting groove (106) is provided. Inside the connecting groove (106), a limiting block (107) is slidably connected. On the top of the connecting block (105), a first spring (108) is fixedly connected. The top of the first spring (108) is fixedly connected to the top inner wall of the filter box (8). At the rear side of the top inner wall of the filter box (8), a first telescopic cylinder (109) is fixedly connected. The telescopic end of the first telescopic cylinder (109) is fixedly connected to a limiting plate (1010). On the front side of the limiting plate (1010), a pushing block (1011) is fixedly connected. The top of the pushing block (1011) contacts the bottom of the limiting block (107).

3. The multi-depth backwashing self-cleaning sampling device for water environment according to claim 2, wherein: Inside the limiting block (107), a round rod (1012) is slidably connected. The front end of the round rod (1012) is fixedly connected to the front side inner wall of the connecting groove (106). On the surface of the round rod (1012), a second spring (1013) is sleeved. The front end of the second spring (1013) is fixedly connected to the front side of the inner wall of the connecting groove (106), and the rear end of the second spring (1013) is fixedly connected to the front side of the limiting block (107).

4. The multi-depth backwashing self-cleaning sampling device for water environment according to claim 2, characterized in that: An L-shaped block (16) is fixedly connected to the left side of the inner wall of the filter box (8). The bottom of the L-shaped block (16) contacts the top of the limiting block (107), and the L-shaped block (16) and the limiting block (107) are used in cooperation.

5. The multi-depth backwashing self-cleaning sampling device for water environment according to claim 1, characterized in that: The cleaning assembly (11) includes a placement plate (111). A servo motor (112) is fixedly connected to the top of the placement plate (111). Synchronous pulleys (113) are fixedly connected to the output end of the servo motor (112) and the surface of the conveying pipe (7). The synchronous pulleys (113) are connected by a synchronous belt. A second telescopic cylinder (114) is fixedly connected to the top of the placement plate (111). The top of the second telescopic cylinder (114) is fixedly connected to the bottom of the disc (2); First squares (115) are fixedly connected to the front and rear sides of the top of both sides of the connecting rod (15). Cleaning brushes (116) are arranged on the top of both sides of the connecting rod (15). The front and rear sides of the inner side of the cleaning brush (116) are movably connected to the first squares (115) through pins; Second squares (117) are fixedly connected to the front and rear sides of the bottom of the cleaning brush (116). A connecting rod (118) is arranged at the bottom of the cleaning brush (116). The front and rear sides of the top of the connecting rod (118) are movably connected to the second squares (117) through pins. The front and rear sides of the bottom of the connecting rod (118) are movably connected to the round blocks (14) through pins.

6. The multi-depth backwashing self-cleaning sampling device for water environment according to claim 5, wherein: Stabilizing blocks (17) are fixedly connected to the front and rear sides of the placement plate (111). Stabilizing grooves (18) are formed in the front and rear sides of the inner wall of the sampler body (1). The outer sides of the stabilizing blocks (17) extend into the interiors of the stabilizing grooves (18), and the stabilizing blocks (17) are slidably connected to the stabilizing grooves (18).

7. The multi-depth backwashing self-cleaning sampling device for water environment according to claim 1, characterized in that: The limiting assembly (12) includes a plurality of pressing blocks (121). A placement groove (122) is formed in the interior of the connecting rod (15). The pressing blocks (121) are located in the placement groove (122). The outer sides of the pressing blocks (121) penetrate to the outer side of the connecting rod (15). The top of the pressing block (121) contacts the bottom of the round block (14).

8. The multi-depth backwashing self-cleaning sampling device for water environment according to claim 7, wherein: A third spring (123) is arranged in the placement groove (122). The front end and the rear end of the third spring (123) are fixedly connected to the inner sides of the pressing blocks (121). The third spring (123) and the pressing blocks (121) are used in cooperation.

9. The multi-depth backwashing self-cleaning sampling device for water environment according to claim 7, wherein: A plurality of support rods (124) are fixedly connected to the top of the swash plate (13). A support block (125) is arranged on the top of the swash plate (13). The shape of the support block (125) is circular. The support block (125) and the pressing blocks (121) are used in cooperation.

10. The multi-depth backwashing self-cleaning sampling device for water environment according to claim 7, characterized in that: Rectangular grooves (126) are formed on both sides of the inner wall of the placement groove (122). Both sides of the inner side of the pressing block (121) are fixedly connected with L-shaped plates (127). The outer sides of the L-shaped plates (127) extend into the rectangular grooves (126) and are slidably connected with the rectangular grooves (126).

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