A device for detecting quality of discharged wastewater

Abstract

The invention discloses a device for detecting the quality of externally discharged wastewater, which relates to the field of wastewater detection and comprises a bracket, a pumping mechanism and a sampling chamber, wherein the sampling chamber has a plurality of sampling chambers and transfer chambers which are ring-shaped and alternately distributed at intervals, a driving mechanism drives the sampling chamber to rotate along its central axis, so that each sampling chamber and transfer chamber is intermittently moved to the position directly below a liquid outlet in turn, an annular connecting groove is provided at the top of the sampling chamber and close to the axis, and the annular connecting groove is connected with each sampling chamber and each transfer chamber through a plurality of straight grooves; the device for detecting the quality of externally discharged wastewater, through the sampling chamber and the transfer chamber arranged in the sampling chamber, enables the transfer chamber to temporarily store liquid during cleaning, and discharges the liquid at a side away from the sampling position, so as to avoid interference with the liquid at the sampling position, and at the same time, in order to make the sampling chamber always in a sealed environment during sampling, the stability and accuracy of the sampling process are guaranteed, and the reliability of subsequent detection results is further improved.

Description

Technical Field

[0001] The invention relates to wastewater detection technology, and in particular to a device for detecting quality of discharged wastewater. Background Art

[0002] Tantalum and niobium are widely used in metallurgy, atomic energy, aerospace, military industry, electronics, superconducting materials and medical equipment. Tantalum and niobium smelting process will produce a lot of "three wastes" (waste water, waste gas and waste residue) pollutants, such as fluorine-containing waste water, which must meet the standards before discharge. These discharged waste waters need to be strictly tested for quality to determine whether they meet the emission standards. Sampling is required during the test, and the accuracy of sampling will directly affect the test results. When the test results are unqualified, it is also necessary to determine the next step of the required treatment operations (such as the amount of reagents, etc.) based on the test results, so as to carry out further treatment in a targeted manner.

[0003] Existing sampling devices generally place the sampler directly into the sampling area. When it is necessary to sample wastewater at a certain depth, the sampler will come into contact with the upper water body and adhere to wastewater that does not belong to the sampling area, affecting the detection results. When continuously monitoring the quality of wastewater, the existing sampling device cannot be moved to the sampling area and perform continuous sampling at certain time intervals. Summary of the invention

[0004] The purpose of the present invention is to provide a device for detecting the quality of discharged wastewater to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above object, the present invention provides the following technical solution: a device for detecting the quality of discharged wastewater, comprising:

[0006] A bracket, one side of which is provided with a sealing cover plate;

[0007] A pumping mechanism, which is arranged at one end of the bracket and is used for directional delivery of liquid;

[0008] The sampling chamber has a plurality of ring-shaped sampling chambers and transfer chambers that are alternately distributed at intervals, wherein the number of the sampling chambers and the transfer chambers is the same and is an odd number, the top of the sampling chamber is rotatably connected to the sealing cover plate, the bottom of the sealing cover plate is provided with a liquid outlet, and the bracket is provided with a guide channel connecting the liquid outlet and the pumping mechanism;

[0009] A driving mechanism, which is used to drive the sampling chamber to rotate along its central axis, so that each sampling cavity and transfer cavity moves intermittently in sequence to just below the liquid outlet;

[0010] An annular connecting groove is provided at the top of the sampling chamber near the axis, and the annular connecting groove is connected with each sampling cavity and each transfer cavity through a plurality of straight grooves;

[0011] A first pipe connected to the transfer chamber is provided at the bottom of the peripheral side of the sampling chamber, and a switch mechanism is provided on the first pipe. The switch mechanism has an open state in which the first pipe is opened to connect the transfer chamber and the outside of the sampling chamber, and a closed state in which the first pipe is closed; when any one of the sampling chambers is located below the liquid outlet, the switch mechanism on the side of the transfer chamber at the symmetrical position of the sampling chamber is switched to the open state, and the other switch mechanisms are in the closed state;

[0012] The sampling chamber is composed of a first chamber body and a second chamber body, the first chamber body is located on the top of the second chamber body, the first chamber body and the second chamber body are connected by a limiting mechanism, the top of the first chamber body is connected to the driving mechanism, the bottom of the second chamber body is rotatably connected to the first frame body, one end of the first frame body is rotatably connected to a rotating rod, and the top of the rotating rod is fixedly connected to an end of the bracket away from the pumping mechanism;

[0013] The limiting mechanism includes a first state and a second state. In the first state, the first bin body and the second bin body are limited to be in a coaxial state. In the second state, the limitation on the second bin body is released, and the second bin body can rotate around the central axis of the rotating rod.

[0014] The limiting mechanism includes a plurality of limiting grooves provided at the bottom of the first warehouse body, and the limiting grooves are distributed in a circular array. The top of the second warehouse body is provided with a plurality of movable grooves corresponding to the limiting grooves one by one. A ball head rod is slidably connected in the movable groove. A first spring is fixedly installed in the movable groove. One end of the first spring is fixedly connected to one side of the ball head of the ball head rod.

[0015] The limiting groove is a spherical groove matched with the ball head of the ball head rod, and two limiting grooves are provided, and the depths of the two grooves are different;

[0016] When the first warehouse body and the second warehouse body are in a coaxial state to perform self-rotation sampling, the ball head of the ball head rod is located in a deeper groove, and the center of the ball head is located in the groove and cannot move out of the groove. When the second warehouse body needs to rotate around the rotating rod, the second warehouse body is rotated to make the ball head slide along the connecting part of the two grooves and enter the shallower groove. At this time, the center of the ball head is located outside the groove, so that the limit can be released when the second warehouse body rotates, thereby realizing the switching of the limit mechanism between the first state and the second state.

[0017] Furthermore, the pumping mechanism includes a pumping chamber opened at one end of the bracket, a piston is slidably connected in the pumping chamber, one side of the piston is connected to a push-pull rod, the push-pull rod is connected to a drive member A for driving it to move, and a first inlet connected to the pumping chamber is opened at the bottom of the side of the bracket away from the sampling chamber, and a plurality of second inlets are arranged on the piston, and one-way valves are installed at the first inlet, the diversion channel and the second inlet.

[0018] Furthermore, the switching mechanism includes a spring-loaded valve arranged on the first pipeline, the spring-loaded valve has a push rod for driving the valve to open and close, a wedge block is arranged above the first frame, the wedge block is located on the moving path of the push rod, and when the push rod moves to the position of the wedge block, it is pushed upward to switch the switching mechanism to an open state.

[0019] Furthermore, it also includes a plurality of sampling bottles, the diameter of the sampling bottles is smaller than the diameter of the sampling cavity, and when the second warehouse body is separated from the first warehouse body, the sampling cavity can be moved into or out of the sampling bottles.

[0020] Furthermore, a lifting mechanism is provided at the bottom of the sampling chamber, and the lifting mechanism includes a plurality of support plates respectively arranged at the bottom of each sampling cavity, and the support plates can be moved to a first position and a second position along the axial direction of the sampling cavity. In the first position, the sampling bottle is located in the sampling cavity, and in the second position, at least a portion of the sampling bottle is located outside the sampling cavity.

[0021] Furthermore, the lifting mechanism also includes an active cavity opened at the bottom of the sampling bin, the bottom of the support plate is fixedly connected with a push shaft, one end of the push shaft extends into the active cavity, a multi-arm ring frame is arranged in the active cavity, each arm end of the multi-arm ring frame is respectively fixedly connected to each push shaft, and the multi-arm ring frame is connected to a B driving member for driving it to move axially along the sampling bin.

[0022] Furthermore, a pad is provided on the top of the first warehouse body, a sealing layer is provided between the pad and the top of the first warehouse body, and a sealing sliding is performed between the top of the pad and the sealing cover plate.

[0023] Compared with the prior art, the device for detecting the quality of discharged wastewater provided by the present invention has the following beneficial effects:

[0024] The device for detecting the quality of discharged wastewater uses a sampling chamber to be set up. When sampling the wastewater to be detected, a pumping mechanism transports the wastewater at the sampling position to each sampling chamber for continuous sampling. The transfer chamber is set up so that the transfer chamber can temporarily store the liquid used for cleaning and discharge it on a side away from the sampling position to avoid interference with the liquid at the sampling position. At the same time, in order to keep the sampling chamber in a sealed environment at all times during sampling, the setting of the transfer chamber also enables the pressure inside the sampling chamber to be balanced through the discharge of the transfer chamber when the liquid is loaded into the sampling chamber, thereby ensuring the smoothness and stability of the sampling process and the accuracy, and further improving the reliability of subsequent detection results.

[0025] The device for detecting the quality of discharged wastewater has a sampling chamber that can perform continuous sampling after entering the sampling area without the need to be repeatedly moved out of and into the water body. The sampling chamber is intermittently moved to the liquid outlet in the sampling area through a plurality of sampling chambers, so that continuous sampling can be performed at certain time intervals, and a sealed state is maintained during the sampling process to avoid mutual influence between the sampled liquids at different times, thereby improving the accuracy and reliability of the detection results during the monitoring process, facilitating the acquisition of true reliability data, and providing effective data for whether the subsequent emission standards are met and further processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0027] Figure 1 A three-dimensional diagram of the overall structure provided by an embodiment of the present invention;

[0028] Figure 2 The embodiment of the present invention provides Figure 1 Schematic diagram of the local longitudinal section structure;

[0029] Figure 3 A schematic diagram of the structure of a sampling chamber provided in an embodiment of the present invention;

[0030] Figure 4 A schematic diagram of a structure of a first warehouse body and a second warehouse body in a separated state provided by an embodiment of the present invention;

[0031] Figure 5 The embodiment of the present invention provides Figure 4 The enlarged view of point A in the middle;

[0032] Figure 6 The embodiment of the present invention provides Figure 4 The enlarged view of point B in the middle;

[0033] Figure 7 A schematic diagram of a ball head rod provided by an embodiment of the present invention being located in a limiting groove;

[0034] Figure 8 A schematic diagram of placing a sampling bottle in a sampling cavity and rotating the second chamber body provided in an embodiment of the present invention;

[0035] Fig. 9 The embodiment of the present invention provides Figure 8 A schematic diagram of a partial longitudinal section structure in an upward-looking state;

[0036] Fig.10 The embodiment of the present invention provides Fig. 9 Enlarged view of point C in the middle;

[0037] Fig.11 A schematic diagram of a partial structure of a lifting mechanism provided in an embodiment of the present invention;

[0038] Fig.12 A schematic diagram of the sampling chamber, sealing layer, backing plate and sealing cover plate in a separated state provided in an embodiment of the present invention.

[0039] Description of reference numerals:

[0040] 1. Bracket; 11. Sealing cover plate; 12. Liquid outlet; 13. Diversion channel; 14. First frame; 15. Rotating rod; 2. Pumping mechanism; 21. Pumping chamber; 22. Piston; 23. Push-pull rod; 24. First inlet; 25. Second inlet; 26. A driving member; 3. Sampling chamber; 31. Sampling chamber; 32. Transfer chamber; 33. Annular connecting groove; 34. Straight groove; 35. First pipeline; 36. First chamber body; 37. Second chamber body; 38 , pad; 39, sealing layer; 4, driving mechanism; 5, switching mechanism; 51, spring-loaded valve; 52, push rod; 53, wedge block; 6, limiting mechanism; 61, limiting groove; 62, movable groove; 63, ball head rod; 64, first spring; 7, sampling bottle; 8, lifting mechanism; 81, support plate; 82, movable cavity; 83, push shaft; 84, multi-arm ring frame; 85, first rotating shaft; 86, first rotating drum; 87, first slide groove; 88, synchronous pulley. DETAILED DESCRIPTION

[0041] When sampling wastewater, the existing sampling device needs to place the sampling container into the sampling area. When the container enters a certain depth below the liquid surface, it will drive the surrounding water flow to move, so that the water in the sampling area is affected by the upper water body driven by the movement of the container. The water actually obtained is not the original water body of the area, and the detected quality data cannot reflect the actual situation of the area, which affects the accurate judgment in the process of sewage treatment; when continuous sampling is performed, continuous sampling with the same container will lead to interference problems in different sampling areas. The existing method is generally to clean the container or prepare enough containers after each sampling, but this will bring inconvenience to the operation of the staff. The speed of cleaning the container may affect the set sampling time node. The cleanliness of the cleaning is affected by uncertain factors such as the experience of the staff and the standardization of the operation, and may also affect the accuracy of the sampling. Preparing multiple containers will increase the burden of sampling and the complexity of the operation. Therefore, the present application proposes a sampling paradigm used for external wastewater quality detection to solve the above problems;

[0042] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0043] For examples, see Figure 1 - Fig.12 , a device for detecting the quality of discharged wastewater, comprising:

[0044] The bracket 1 has a sealing cover plate 11 disposed on one side thereof;

[0045] A pumping mechanism 2, which is arranged at one end of the bracket 1 and is used for directional liquid transportation;

[0046] The sampling chamber 3 has a plurality of ring-shaped sampling chambers 31 and transfer chambers 32 that are alternately distributed at intervals, wherein the number of the sampling chambers 31 and the transfer chambers 32 is the same and is an odd number, the top of the sampling chamber 3 is rotatably connected to the sealing cover plate 11, the bottom of the sealing cover plate 11 is provided with a liquid outlet 12, and the bracket 1 is provided with a guide channel 13 connecting the liquid outlet 12 and the pumping mechanism 2;

[0047] The driving mechanism 4 is used to drive the sampling chamber 3 to rotate along its central axis so that each sampling cavity 31 and the transfer cavity 32 are sequentially and intermittently moved to the position directly below the liquid outlet 12;

[0048] An annular connecting groove 33 is provided at the top of the sampling chamber 3 and near the axis. The annular connecting groove 33 is connected with each sampling cavity 31 and each transfer cavity 32 through a plurality of straight grooves 34.

[0049] A first pipe 35 connected to the transfer chamber 32 is provided at the bottom of the peripheral side of the sampling chamber 3, and a switch mechanism 5 is provided on the first pipe 35. The switch mechanism 5 has an open state in which the first pipe 35 is opened to connect the transfer chamber 32 and the outside of the sampling chamber 3, and a closed state in which the first pipe 35 is closed; when any sampling chamber 31 is located below the liquid outlet 12, the switch mechanism 5 on the side of the transfer chamber 32 at a symmetrical position of the sampling chamber 31 is switched to an open state, and the other switch mechanisms 5 are in a closed state.

[0050] When in use, the device is fixed at a designated position in the sedimentation tank or manually placed at a desired sampling position. When the sampling chamber 3 is initially, the transfer chamber 32 is located below the liquid outlet 12. At this time, the pumping mechanism 2 pumps wastewater from the external sedimentation tank into the transfer chamber 32. During this process, water at the sampling position will only enter but not exit. Then, the driving mechanism 4 drives the sampling chamber 3 to rotate, so that the sampling chamber 31 moves to below the liquid outlet 12. The pumping mechanism 2 continues to transport the liquid. At this time, the liquid will enter the sampling chamber 3 for storage. Subsequently, continuous sampling is performed with the cooperation of the driving mechanism 4 and the pumping mechanism 2.

[0051] When the sampling position changes, in order to prevent the water remaining in the pumping mechanism 2 and the liquid flow area from affecting the detection results, sampling can be performed again through the cooperation of the sampling chamber 31 and the transfer chamber 32;

[0052] Specific:

[0053] When sampling continuously at the same position, it is only necessary to transport liquid into one transfer chamber 32 during the first sampling to wet the pumping mechanism 2 itself and the channel for transporting liquid. This process can be understood as a cleaning process. The cleaning water is the raw water to be tested at the sampling position. The cleaned raw water will be in the transfer chamber 32. For subsequent sampling, it is only necessary for the driving mechanism 4 to drive each sampling chamber 31 to move to the bottom of the liquid outlet 12 in sequence.

[0054] When sampling at different locations, the above process can be performed once each time the location is changed;

[0055] It should be noted that there are multiple sampling chambers 31, and the number thereof at least meets the number required for one sampling. For general sampling requirements, at least three sampling chambers 31 are provided to meet the required number of samples. The number of provided chambers depends on the size of the sampling chamber 3 and the actual sampling requirements. For example, when sampling is required in two areas, the number of sampling chambers 31 can be set to 6, and three sampling chambers are grouped together to sample the same position. In order to cooperate with the switch mechanism 5, the number of sampling chambers 31 should be an odd number. Therefore, in this case, the number of sampling chambers 31 is 7, and one of the sampling chambers 31 does not function during sampling.

[0056] When liquid enters the sampling cavity 31 below the liquid outlet 12, the airflow will be guided from the annular connecting groove 33 to the transfer cavity 32 away from the sampling cavity 31. The transfer cavity 32 will open the first pipe 35 under the cooperation of the switch mechanism 5. As liquid continues to enter the sampling cavity 31, the air originally inside will be guided into the transfer cavity 32, so that the air or liquid in the transfer cavity 32 will be discharged from the first pipe 35. These gases or liquids will be discharged from a position away from the sampling position to avoid interference with the sampling position.

[0057] In one embodiment of the present invention, the driving mechanism 4 is a general sheave mechanism or a dividing rotation mechanism or a stepping motor. The driven sheave of the sheave mechanism has a plurality of adapted notches and rotates intermittently under the drive of the active dial. The output shaft of the driven sheave is connected to the top of the sampling chamber 3, and the input end is connected to the motor. The dividing rotation mechanism mainly uses a dividing plate for intermittent rotation. The above are all prior arts and are directly applied here without modification. Therefore, they are not specifically described in this technical solution, and based on the art, they will not cause trouble to this technical solution.

[0058] In one embodiment of the present invention, in the required sampling area, the sampling chamber 3 can always be located in the area for sampling at any time, that is, the device can be fixedly placed in the required sampling area, and when sampling is required at a time point, the pumping mechanism and the driving mechanism 4 can be started to perform sampling.

[0059] The present solution will be further described below with reference to the arrangement of five sampling chambers 31 and the accompanying drawings:

[0060] In one embodiment of the present invention, in order to facilitate the removal of the sampling chamber 3 after sampling, the sampling chamber 3 is divided into two parts, namely, the sampling chamber 3 is composed of a first chamber body 36 and a second chamber body 37, and the first chamber body 36 is located on the top of the second chamber body 37. Figure 3 and Figure 4 As shown, the first bin body 36 and the second bin body 37 are connected by a limiting mechanism 6, the top of the first bin body 36 is connected to the driving mechanism 4, and the bottom of the second bin body 37 is rotatably connected to the first frame body 14, one end of the first frame body 14 is rotatably connected to a rotating rod 15, and the top of the rotating rod 15 is fixedly connected to the end of the bracket 1 away from the pumping mechanism 2. It should be noted that a sealing gasket (not shown in the figure) is provided at the contact surface of the first bin body 36 and the second bin body 37, so that when the second bin body 37 is rotated to be coaxial with the first bin body 36, a sealing state can be formed. Generally, a compressible sealing ring is installed on the contact surface of the first bin body 36 or the second bin body 37, which is a prior art and will not be described in detail here.

[0061] The limiting mechanism 6 includes a first state and a second state. In the first state, the first bin body 36 and the second bin body 37 are limited to be in a coaxial state. In the second state, the restriction on the second bin body 37 is released, and the second bin body 37 can rotate around the central axis of the rotating rod 15. The limiting mechanism 6 includes a plurality of limiting grooves 61 provided at the bottom of the first bin body 36, and the limiting grooves 61 are distributed in a ring array. A plurality of movable grooves 62 corresponding to the limiting grooves 61 are provided at the top of the second bin body 37. A ball head rod 63 is slidably connected in the movable groove 62. A first spring 64 is fixedly installed in the movable groove 62. One end of the first spring 64 is fixedly connected to one side of the ball head of the ball head rod 63.

[0062] like Figure 4 - Figure 6 As shown, the limiting groove 61 is a spherical groove that is compatible with the ball head of the ball head rod 63. When the first warehouse body 36 is coaxial with the second warehouse body 37, the ball head rod 63 enters the limiting groove 61 for locking. In order to enable the second warehouse body 37 to rotate, the center of the ball head rod 63 should be located outside the limiting groove 61. When the second warehouse body 37 rotates around the rotating rod 15, the ball head rod 63 can enter the movable groove 62 to disengage the two. One disadvantage of this setting is that since the second warehouse body 37 also needs to rotate around its own axis and is driven by the first warehouse body 36, it is difficult to ensure the limiting effect of the limiting mechanism 6 by only setting one groove. In this embodiment, two grooves are set, and a groove is also set at a position away from the direction of rotation of the first warehouse body 36, such as Figure 5 and Figure 7 , the depths of the two grooves are different, and the specific implementation scenarios are:

[0063] When the first warehouse body 36 and the second warehouse body 37 are in a coaxial state to perform self-rotation sampling, the ball head of the ball head rod 63 is located in a deeper groove. At this time, the center of the ball head is located in the groove and it cannot move out of the groove. When the second warehouse body 37 needs to rotate around the rotating rod 15, the second warehouse body 37 is rotated first, and the ball head will slide along the connection part of the two grooves and then enter the shallower groove. At this time, the center of the ball head is located outside the groove, so that the limit can be released when the second warehouse body 37 rotates, thereby realizing the switching of the limit mechanism 6 between the first state and the second state.

[0064] In one embodiment of the present invention, the pumping mechanism 2 includes a pumping chamber 21 opened at one end of the bracket 1, a piston 22 is slidably connected in the pumping chamber 21, a push-pull rod 23 is connected to one side of the piston 22, and the push-pull rod 23 is connected to an A driving member 26 for driving it to move. A first inlet 24 connected to the pumping chamber 21 is opened at the bottom of the side of the bracket 1 away from the sampling chamber 3, and a plurality of second inlets 25 are arranged on the piston 22. Check valves are installed at the first inlet 24, the guide channel 13 and the second inlet 25, which are respectively a first check valve, a second check valve and a third check valve, wherein the first check valve only allows the fluid to flow from the outside of the bracket 1 to the pumping chamber 21, the second check valve only allows the fluid to flow from the pumping chamber 21 to the liquid outlet 12, and the third check valve only allows the fluid to flow from the bottom to the top of the pumping chamber 21;

[0065] A driving member 26 comprises an electric telescopic rod, the output end of which is fixedly connected to a connecting rod, the other end of which is fixedly connected to a push-pull rod 23, the push-pull rod 23 passes through the bracket 1 and is slidably connected to the inner wall of the bracket 1, and the electric telescopic rod is fixedly mounted on one side of the bracket 1;

[0066] In one embodiment of the present invention, the switch mechanism 5 includes a spring-loaded valve 51 disposed on the first pipe 35, the spring-loaded valve 51 having a push rod 52 for driving the valve to open and close, a wedge block 53 is disposed above the first frame 14, the wedge block 53 is located on the moving path of the push rod 52, and the push rod 52 is pushed upward when it moves to the position of the wedge block 53, so that the switch mechanism 5 is switched to the open state, thereby realizing the opening and closing of the first pipe 35.

[0067] In one embodiment of the present invention, a sampling bottle 7 can be placed in the sampling cavity 31. When sampling is performed, the liquid is directly transported to the sampling bottle 7. After the sampling is completed, the sampling bottle 7 can be directly taken out. The device can perform further sampling after placing a new sampling bottle 7. The diameter of the sampling bottle 7 is smaller than the diameter of the sampling cavity 31. When the second chamber 37 is separated from the first chamber 36, the sampling bottle 7 can be moved into or out of the sampling cavity 31.

[0068] In one embodiment of the present invention, a lifting mechanism 8 is provided at the bottom of the sampling chamber 3, and the lifting mechanism 8 includes a plurality of support plates 81 respectively provided at the bottom of each sampling cavity 31, and the support plates 81 can be moved along the axis direction of the sampling cavity 31 to a first position and a second position. In the first position, the sampling bottle 7 is located in the sampling cavity 31, and in the second position, at least a part of the sampling bottle 7 is located outside the sampling cavity 31;

[0069] In one embodiment of the present invention, the lifting mechanism 8 also includes an active cavity 82 opened at the bottom of the sampling chamber 3, and the bottom of the support plate 81 is fixedly connected to a push shaft 83, one end of the push shaft 83 extends into the active cavity 82, and a multi-arm ring frame 84 is arranged in the active cavity 82, and each arm end of the multi-arm ring frame 84 is respectively fixedly connected to each push shaft 83, and the multi-arm ring frame 84 is connected to a B driving member for driving it to move axially along the sampling chamber 3;

[0070] In one embodiment of the present invention, the driving member B may be a manual rod (not shown in the figure) installed at the bottom of the sampling chamber 3, the end of the manual rod is connected to the multi-arm ring frame 84, and the multi-arm ring frame 84 is moved by manually driving the manual rod to move, thereby driving each support plate 81 to move;

[0071] In one embodiment of the present invention, a specific example of the second type B driving member is provided, which includes a first rotating shaft 85 rotatably connected to the inner wall of the sampling chamber 3, a first rotating cylinder 86 is disposed on the outer surface of the first rotating shaft 85, a first sliding groove 87 is provided on the outer surface of the first rotating cylinder 86, a multi-arm ring frame 84 is sleeved on the surface of the first rotating cylinder 86, and a sliding nail is fixedly connected to the inner surface of the multi-arm ring frame, and the sliding nail is slidably connected to the first sliding groove 87, the first rotating shaft 85 extends to the outside of the sampling chamber 3 and is fixedly connected to the first frame 14, and a ratchet mechanism (not shown in the figure) is provided between the first rotating cylinder 86 and the first rotating shaft 85, and the function of the ratchet mechanism is to limit the first rotating cylinder 86 from rotating in the direction opposite to the rotation direction of the sampling chamber 3. The first rotating cylinder 86 is a kind of rotating cylinder 86 which is a kind of rotating cylinder 86. ...

[0072] It should be noted that in this embodiment, since the second bin body 37 also needs to be rotated when the limiting mechanism 6 is released, and the rotation direction is the same when the two functions are realized, the first slide groove 87 is composed of two parts, namely a horizontal section and an inclined section. Fig. 9As shown, under this setting, when the second bin body 37 is rotated to switch the limiting mechanism 6 to the second state, the stroke required for its rotation does not exceed the length of the horizontal section, that is, it does not exceed the stroke of the sliding pin moving in the horizontal section. In other words, at this time, the multi-arm ring frame 84 will not move upward during the separation of the second bin body 37 from the first bin body 36, but will move in the inclined section after the second bin body 37 is separated from the first bin body 36 (without affecting the movement of each sampling bottle 7 to the position outside the sampling chamber 31), so that the multi-arm ring frame 84 moves upward and each support plate 81 moves to the second position;

[0073] In one embodiment of the present invention, under the second embodiment of the B driving member, a method for moving each support plate 81 to the second position is further provided:

[0074] The first rotating shaft 85 of the B driving member is also rotatably connected to the first frame 14. A transmission cavity is opened in the first frame 14, and a transmission mechanism is arranged in the transmission cavity. The transmission mechanism includes two synchronous pulleys 88, and the two synchronous pulleys 88 are respectively fixedly mounted on the first rotating shaft 85 and fixedly mounted on the rotating rod 15. The two synchronous pulleys 88 are connected through a transmission belt transmission. Under this arrangement, during the separation of the second warehouse body 37 from the first warehouse body 36, the second warehouse body 37 rotates around the rotating rod 15. Since the synchronous pulley 88 on the rotating rod 15 cannot rotate, the transmission belt will drive the synchronous pulley 88 at the first rotating shaft 85 to rotate by rotating around the synchronous pulley 88, and the rotation of the synchronous pulley 88 drives the first rotating shaft 85 to rotate The first rotating shaft 85 rotates in the opposite direction to the sampling chamber 3 when it is working, and then drives the multi-arm ring frame 84 to move with the cooperation of the ratchet mechanism, so that each support plate 81 moves to the second position. The principle is the same as the above method and will not be described in detail here. It should be understood that under this setting, the first slide groove 87 is still composed of a horizontal section and an inclined section, and is adaptively adjusted to adapt to the operation scenario of automatically driving the price raising mechanism when the second chamber body 37 is separated by the transmission mechanism, so as to avoid interference with the separation of the second chamber body 37 and the first chamber body 36. It should be noted that the minimum angle required for the second chamber body 37 to rotate in this way is greater than the minimum angle required for the first or second way.

[0075] In one embodiment of the present invention, a pad 38 is disposed on the top of the first bin body 36, a sealing layer 39 is disposed between the pad 38 and the top of the first bin body 36, and a sealing sliding is performed between the top of the pad 38 and the sealing cover plate 11. Fig.12 As shown, the sealing layer 39 is a thin rubber pad, which covers the top of the first warehouse body 36. The pad 38 is made of wear-resistant material and is fixed to the first warehouse body 36 after installation. The pad 38 is replaceable.

[0076] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A device for detecting the quality of discharged wastewater, characterized in that: include: A bracket, one side of which is provided with a sealing cover plate; A pumping mechanism, which is arranged at one end of the bracket and is used for directional delivery of liquid; The sampling chamber has a plurality of ring-shaped sampling chambers and transfer chambers that are alternately distributed at intervals, wherein the number of the sampling chambers and the transfer chambers is the same and is an odd number, the top of the sampling chamber is rotatably connected to the sealing cover plate, the bottom of the sealing cover plate is provided with a liquid outlet, and the bracket is provided with a guide channel connecting the liquid outlet and the pumping mechanism; A driving mechanism, which is used to drive the sampling chamber to rotate along its central axis, so that each sampling cavity and transfer cavity moves intermittently in sequence to just below the liquid outlet; An annular connecting groove is provided at the top of the sampling chamber near the axis, and the annular connecting groove is connected with each sampling cavity and each transfer cavity through a plurality of straight grooves; A first pipe connected to the transfer chamber is provided at the bottom of the peripheral side of the sampling chamber, and a switch mechanism is provided on the first pipe. The switch mechanism has an open state in which the first pipe is opened to connect the transfer chamber and the outside of the sampling chamber, and a closed state in which the first pipe is closed; when any one of the sampling chambers is located below the liquid outlet, the switch mechanism on the side of the transfer chamber at the symmetrical position of the sampling chamber is switched to the open state, and the other switch mechanisms are in the closed state; The sampling chamber is composed of a first chamber body and a second chamber body, the first chamber body is located on the top of the second chamber body, the first chamber body and the second chamber body are connected by a limiting mechanism, the top of the first chamber body is connected to the driving mechanism, the bottom of the second chamber body is rotatably connected to the first frame body, one end of the first frame body is rotatably connected to a rotating rod, and the top of the rotating rod is fixedly connected to an end of the bracket away from the pumping mechanism; The limiting mechanism includes a first state and a second state. In the first state, the first bin body and the second bin body are limited to be in a coaxial state. In the second state, the limitation on the second bin body is released, and the second bin body can rotate around the central axis of the rotating rod. The limiting mechanism includes a plurality of limiting grooves provided at the bottom of the first warehouse body, and the limiting grooves are distributed in a circular array. The top of the second warehouse body is provided with a plurality of movable grooves corresponding to the limiting grooves one by one. A ball head rod is slidably connected in the movable groove. A first spring is fixedly installed in the movable groove. One end of the first spring is fixedly connected to one side of the ball head of the ball head rod. The limiting groove is a spherical groove matched with the ball head of the ball head rod, and two limiting grooves are provided, and the depths of the two grooves are different; When the first warehouse body and the second warehouse body are in a coaxial state to perform self-rotation sampling, the ball head of the ball head rod is located in a deeper groove, and the center of the ball head is located in the groove and cannot move out of the groove. When the second warehouse body needs to rotate around the rotating rod, the second warehouse body is rotated to make the ball head slide along the connecting part of the two grooves and enter the shallower groove. At this time, the center of the ball head is located outside the groove, so that the limit can be released when the second warehouse body rotates, thereby realizing the switching of the limit mechanism between the first state and the second state.

2. The device for detecting the quality of discharged wastewater according to claim 1, characterized in that: The pumping mechanism includes a pumping chamber opened at one end of the bracket, a piston is slidably connected in the pumping chamber, one side of the piston is connected to a push-pull rod, and the push-pull rod is connected to a driving member A for driving it to move. A first inlet connected to the pumping chamber is opened at the bottom of the side of the bracket away from the sampling chamber, and a plurality of second inlets are arranged on the piston. One-way valves are installed at the first inlet, the guide channel and the second inlet.

3. The device for detecting the quality of discharged wastewater according to claim 1, characterized in that: The switch mechanism includes a spring-loaded valve arranged on a first pipeline, the spring-loaded valve having a push rod for driving the valve to open and close, a wedge block is arranged above the first frame, the wedge block is located on the moving path of the push rod, and when the push rod moves to the position of the wedge block, it is pushed upward to switch the switch mechanism to an open state.

4. The device for detecting the quality of discharged wastewater according to claim 1, characterized in that: It also includes a plurality of sampling bottles, the diameter of the sampling bottles is smaller than the diameter of the sampling cavity, and when the second warehouse body is separated from the first warehouse body, the sampling cavity can be moved into or out of the sampling bottles.

5. The device for detecting the quality of discharged wastewater according to claim 4, characterized in that: A lifting mechanism is provided at the bottom of the sampling chamber, and the lifting mechanism includes a plurality of support plates respectively arranged at the bottom of each sampling cavity. The support plates can be moved to a first position and a second position along the axial direction of the sampling cavity. In the first position, the sampling bottle is located in the sampling cavity, and in the second position, at least a portion of the sampling bottle is located outside the sampling cavity.

6. The device for detecting the quality of discharged wastewater according to claim 5, characterized in that: The lifting mechanism also includes an active cavity opened at the bottom of the sampling bin, the bottom of the support plate is fixedly connected to a push shaft, one end of the push shaft extends into the active cavity, a multi-arm ring frame is arranged in the active cavity, each arm end of the multi-arm ring frame is respectively fixedly connected to each push shaft, and the multi-arm ring frame is connected to a B driving member for driving it to move axially along the sampling bin.

7. The device for detecting the quality of discharged wastewater according to claim 1, characterized in that: A pad is provided on the top of the first warehouse body, a sealing layer is provided between the pad and the top of the first warehouse body, and a sealing sliding is performed between the top of the pad and the sealing cover plate.

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