Sampling measuring cup for biochemical SV30

Abstract

The utility model relates to a sampling measuring cup for biochemical SV30. A limiting table is arranged in a vertically-through inner cavity formed in an upper cylinder, the limiting table divides the inner cavity into a volume cavity and a matching cavity, the diameter of the matching cavity is larger than that of the volume cavity, and a through hole and a lock hole which are communicated with the matching cavity are formed in the outer side wall of the upper cylinder; a traction rope is arranged at the bottom of an inflow cavity formed in the lower cylinder, the outer side wall of the lower cylinder is arranged in the matching cavity in a matched mode, an inflow hole communicated with the inflow cavity and an axially-formed limiting groove are formed in the outer side wall of the lower cylinder, the lock hole is matched with the limiting groove through a screw, and a balancing weight is arranged at the bottom of the lower cylinder. The upper cylinder and the lower cylinder are matched with each other, so that the measuring cup is placed in sewage to be detected, the upper cylinder and the lower cylinder are separated in the sinking process, the sewage enters an inflow cavity of the lower cylinder, the upper cylinder is pressed on the lower cylinder after being subjected to downward pressure in the sinking and upward pulling process, and the sewage and floccules are limited in the measuring cup; and the sampling of the sample is completed until the measuring cup is pulled out of the sewage surface.

Description

Technical Field

[0001] The utility model belongs to the field of sewage measuring equipment, and in particular relates to a biochemical SV30 sampling measuring cup. Background Art

[0002] The SV30 monitoring indicator is of great significance in the management of sewage treatment processes. Through this indicator, the sludge volume, sludge sedimentation effect and sludge swelling effect of the current system can be quickly analyzed. The traditional SV30 measurement is done by manually using a ladle or spoon to pour the sludge into a beaker, which consumes labor costs and time costs and is inefficient. Alternatively, the sludge is pumped up by a water pump, but the water pump will affect the measurement results because the impeller breaks up the sludge flocs. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a biochemical SV30 sampling measuring cup. Through the cooperation of the upper tube and the lower tube, the measuring cup is placed in the sewage to be tested. During the sinking process, the upper tube and the lower tube are separated, and the sewage enters the inflow cavity of the lower tube. During the sinking and upward pulling process, the upper tube is pressed on the lower tube under downward pressure, and the sewage and flocs are confined in the measuring cup until the measuring cup is pulled out of the sewage surface to complete the sample sampling.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A biochemical SV30 sampling measuring cup, comprising an upper tube and a lower tube, wherein the upper tube is provided with an inner cavity penetrating from top to bottom, wherein the inner cavity is provided with a limit platform, wherein the limit platform separates the inner cavity from top to bottom into a volume cavity and a matching cavity, wherein the diameter of the matching cavity is larger than the volume cavity, wherein the outer wall of the upper tube is provided with a through hole and a lock hole communicating with the matching cavity, wherein a slope is provided at the lower end opening of the matching cavity, wherein the outer wall of the lower tube is provided with a slope extending outward, wherein the slope matches the slope; wherein the upper end surface edge of the upper tube is provided with a through hole ... connecting the matching cavity and the matching cavity. A buffer plate extends outward and is inclined downward; a baffle plate covers the upper opening of the volume cavity, and a plurality of through holes are provided on the baffle plate; an inflow cavity is provided in the lower cylinder, and a traction rope is provided at the bottom of the inflow cavity, and the traction rope cooperates with the through holes, and the outer wall of the lower cylinder cooperates in the cooperation cavity, and an inflow hole connected to the inflow cavity and an axially arranged limit groove are provided on the outer wall of the lower cylinder, and the lock hole cooperates with the limit groove through a screw, and a counterweight block is provided at the bottom of the lower cylinder, and the counterweight block has a conical structure.

[0006] In the biochemical SV30 sampling measuring cup adopting this structure, the inner cavity of the upper cylinder is divided into a volume cavity and a matching cavity by a limit table. The diameter of the matching cavity is larger than the diameter of the volume cavity. When the outer wall of the lower cylinder is matched in the matching cavity, the upward movement path of the lower cylinder will be limited by the limit table. Therefore, the lower cylinder can only move up and down at the lower end opening of the matching cavity. A through hole connected to the matching cavity is provided on the outer wall of the upper cylinder. The upper end of the outer wall of the lower cylinder can be blocked by the through hole during the up and down movement, and an inflow hole connected to the inflow cavity is provided on the outer wall of the lower cylinder. Therefore, when the measuring cup is placed in sewage, when the upper cylinder and the lower cylinder are separated, the sewage can enter the inflow cavity from the inflow hole, and then enter the matching cavity upward, and then flow out from the through hole. In order to prevent the upper cylinder and the lower cylinder from losing connection with each other due to separation, a lock hole connected to the matching cavity is provided on the outer wall of the upper cylinder. An axially arranged limit groove is provided on the outer side wall of the lower cylinder. By screwing a screw into the lock hole from the outer side wall of the upper cylinder, the end of the screw can pass through the outer side wall of the upper cylinder and enter the limit groove. During the downward movement of the lower cylinder, the screw will be embedded in the limit groove, which will prevent it from moving downward excessively and cause the upper and lower cylinders to lose connection. Therefore, the upper and lower cylinders will be connected to each other. When the measuring cup is placed in sewage, it is necessary to ensure that the lower cylinder moves downward to ensure that the sewage can flow through the inflow hole, the inflow cavity, the matching cavity and the through hole. Therefore, a counterweight block is added to the bottom of the lower cylinder to increase the weight of the lower cylinder, and a buffer plate extending outward and tilted downward is provided on the edge of the upper end face of the upper cylinder, so that the upper cylinder can be subjected to buoyancy during the sinking process, so that the upper and lower cylinders remain separated during the sinking process of the measuring cup until the measuring cup sinks to the bottom of the sewage.

[0007] When the measuring cup sinks to the bottom of the sewage, the flocs in the sewage will enter the inflow chamber during the flow. At this time, the measuring cup can be pulled up for sampling. In order to facilitate pulling up, a traction rope is set at the bottom of the inflow chamber. The upper end of the traction rope passes through the perforation on the baffle. When the staff holds the traction rope and pulls it up, they actually pull the lower cylinder upward. When the water pressure acts on the buffer plate, it will provide a downward pressure on the upper cylinder, and the lower cylinder will continue to be pulled by the traction rope and subjected to the upward tension. The lower cylinder will gradually rise, causing the upper end of the outer wall of the lower cylinder to block the through hole. At the same time, the slope on the lower cylinder and the slope at the lower end opening of the matching chamber will cooperate and press together. At this time, the sewage will connect the flocs and remain in the inflow chamber and the volume chamber. Although the baffle There are several perforations, but because the space inside the measuring cup is in a closed state, the water flow during the rising process cannot enter the space of the measuring cup to displace the sampled sewage. Even if it can enter, it can only displace a small part of the sewage in the upper layer. Most of the sewage and flocs will still remain in the inflow chamber and the volume chamber until the measuring cup is pulled up and out of the water surface. The upper cylinder and the lower cylinder will always maintain the state of upper and lower adsorption and pressing. Take out the measuring cup from the water surface, and the staff can continue to tighten the screws and abut the bottom of the screws against the bottom of the limit groove to lock the measuring cup, and directly send the entire measuring cup for sample testing. When the measuring cup needs to be cleaned, it only needs to unscrew the screws to completely separate the upper cylinder and the lower cylinder, and clean them separately.

[0008] Furthermore, a glass wall communicating with the volume cavity is also provided on the outer side wall of the upper cylinder.

[0009] Compared with the prior art, the utility model has the following advantages: during the sinking of the measuring cup into the sewage, the counterweight block can increase the weight of the lower cylinder, the buffer plate on the upper cylinder can provide buoyancy, and the upper and lower cylinders are limited by screws and limit grooves. Therefore, during the sinking of the measuring cup, the sewage can be kept flowing through the inflow hole, the inflow cavity, the matching cavity and the through hole until the measuring cup sinks to the bottom, so that the sewage and flocs can stay in the inflow cavity, and then by pulling up the traction rope, the water pressure acts on the buffer plate, and the lower cylinder is subjected to a continuous upward pulling force until the lower cylinder is pressed into the upper cylinder, covering and closing the through hole and the inflow hole, so that the sewage and flocs are kept in the measuring cup until the measuring cup is pulled out of the water to complete the bottom sample taking of the sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0011] Figure 1 It is a three-dimensional diagram of the utility model;

[0012] Figure 2 It is an explosion diagram of the utility model;

[0013] Figure 3 It is a top view of the utility model;

[0014] Figure 4 For the utility model Figure 3 AA section view.

[0015] Among them: 1. upper cylinder; 11. inner cavity; 12. limit platform; 13. volume cavity; 14. matching cavity; 141. slope; 15. through hole; 16. lock hole; 17. buffer plate; 18. baffle; 181. perforation; 19. glass wall; 2. lower cylinder; 21. inflow cavity; 22. traction rope; 23. inflow hole; 24. limit groove; 25. counterweight block; 26. slope. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0017] The specific implementation of the utility model will be described below in conjunction with the accompanying drawings:

[0018] like Figure 1-4As shown, a sampling measuring cup for biochemical SV30 comprises an upper tube 1 and a lower tube 2, wherein the upper tube 1 is provided with an inner cavity 11 which passes through from top to bottom, wherein the inner cavity 11 is provided with a stopper 12, wherein the stopper 12 separates the inner cavity 11 from top to bottom into a volume cavity 13 and a matching cavity 14, wherein the diameter of the matching cavity 14 is larger than that of the volume cavity 13, wherein the outer wall of the upper tube 1 is provided with a through hole 15 and a lock hole 16 which communicate with the matching cavity 14, wherein the lower end opening of the matching cavity 14 is provided with a slope 141, wherein the outer wall of the lower tube 2 is provided with a slope 26 which extends outwards, wherein the slope 141 matches with the slope 26; wherein the upper end surface edge of the upper tube 1 is provided with a through hole 15 which communicates with the matching cavity 14, wherein the lock hole 16 which communicates with the matching cavity 14 is provided with a lock hole 16 which communicates with the matching cavity 14, wherein the lower end opening of the matching cavity 14 is provided with a slope 141 ... A buffer plate 17 extends outward and is inclined downward; a baffle plate 18 covers the upper opening of the volume chamber 13, and a plurality of through holes 181 are provided on the baffle plate 18; an inflow chamber 21 is provided in the lower tube 2, and a traction rope 22 is provided at the bottom of the inflow chamber 21, and the traction rope 22 cooperates with the through hole 181, and the outer wall of the lower tube 2 cooperates in the cooperation chamber 14, and an inflow hole 23 connected to the inflow chamber 21 and an axially arranged limit groove 24 are provided on the outer wall of the lower tube 2, and the lock hole 16 cooperates with the limit groove 24 through a screw, and a counterweight block 25 is provided at the bottom of the lower tube 2, and the counterweight block 25 has a conical structure.

[0019] Furthermore, the outer wall of the upper tube 1 is also provided with a glass wall 19 communicating with the volume chamber 13.

[0020] Description of the working method of this utility model:

[0021] In the sampling measuring cup of the biochemical SV30 adopting the structure, the inner cavity 11 of the upper cylinder 1 is divided into a volume cavity 13 and a matching cavity 14 by a limiting platform 12. The diameter of the matching cavity 14 is larger than the diameter of the volume cavity 13. When the outer wall of the lower cylinder 2 is matched in the matching cavity 14, the upward movement path of the lower cylinder 2 will be limited by the limiting platform 12. Therefore, the lower cylinder 2 can only move up and down at the lower end opening of the matching cavity 14. A through hole 15 connected to the matching cavity 14 is provided on the outer wall of the upper cylinder 1. The upper end of the side wall can be blocked on the through hole 15 during the upward and downward movement, and an inflow hole 23 connected to the inflow chamber 21 is provided on the outer wall of the lower cylinder 2. Therefore, when the measuring cup is placed in sewage, when the upper cylinder 1 and the lower cylinder 2 are separated, the sewage can enter the inflow chamber 21 from the inflow hole 23, and then enter the matching chamber 14 upward, and then flow out from the through hole 15. In order to prevent the upper cylinder 1 and the lower cylinder 2 from losing the connection with each other due to separation, a connecting matching hole 23 is provided on the outer wall of the upper cylinder 1. The locking hole 16 of the cavity 14 is provided with an axially arranged limiting groove 24 on the outer side wall of the lower cylinder 2. By screwing a screw from the outer side wall of the upper cylinder 1 into the locking hole 16, the end of the screw can pass through the outer side wall of the upper cylinder 1 and enter the limiting groove 24. When the lower cylinder 2 moves downward, the screw is embedded in the limiting groove 24, which makes it impossible to move downward excessively, resulting in the loss of connection between the upper cylinder 1 and the lower cylinder 2. Therefore, the upper cylinder 1 and the lower cylinder 2 will be connected to each other. When the measuring cup is placed in sewage, it is necessary to ensure that The lower cylinder 2 moves downward to ensure that the sewage can flow through the inflow hole 23, the inflow cavity 21, the matching cavity 14 and the through hole 15. Therefore, a counterweight 25 is added to the bottom of the lower cylinder 2 to increase the weight of the lower cylinder 2, and a buffer plate 17 extending outward and tilted downward is provided on the upper end surface edge of the upper cylinder 1, so that the upper cylinder 1 can be subjected to buoyancy during the sinking process, so that the upper cylinder 1 and the lower cylinder 2 remain separated during the sinking process of the measuring cup until the measuring cup sinks to the bottom of the sewage.

[0022] When the measuring cup sinks to the bottom of the sewage, the flocs in the sewage will enter the inflow chamber 21 during the flow. At this time, the measuring cup can be pulled up for sampling. In order to facilitate the pulling up, a traction rope 22 is set at the bottom of the inflow chamber 21. The upper end of the traction rope 22 passes through the through hole 181 on the baffle 18. When the staff holds the traction rope 22 and pulls it up, they actually pull the lower cylinder 2 upward. When the water pressure acts on the buffer plate 17, it will provide a downward pressure to the upper cylinder 1, and the lower cylinder 2 will continue to be pulled by the traction rope 22 and subjected to the upward tension. The lower cylinder 2 will gradually rise, causing the upper end of the outer wall of the lower cylinder 2 to block the through hole 15. At the same time, the slope 26 on the lower cylinder 2 and the slope 141 at the lower end opening of the matching chamber 14 will cooperate and press together. At this time, the sewage will connect the flocs and remain in the inflow chamber 21 and the volume chamber 13. Although there are several through holes 181 on the baffle 18 However, because the space in the measuring cup is in a closed state, the water flow in the rising process cannot enter the space of the measuring cup to replace the sampled sewage. Even if it can enter, it can only replace a small part of the sewage in the upper layer. Most of the sewage and flocs will still remain in the inflow chamber 21 and the volume chamber 13 until the measuring cup is pulled up and out of the water surface. The upper tube 1 and the lower tube 2 will always maintain the state of upper and lower adsorption and pressing. When the measuring cup is taken out of the water surface, the staff can continue to tighten the screws and abut the bottom of the screws against the bottom of the limiting groove 24 to lock the measuring cup, and directly send the entire measuring cup for sample detection. The glass wall 19 provided on the outer wall of the upper tube 1 can observe the actual situation of the sewage in the measuring cup, which can be directly detected on the detection equipment. When the measuring cup needs to be cleaned, it only needs to unscrew the screws to completely separate the upper tube 1 and the lower tube 2, and clean them separately.

[0023] The beneficial effect of the utility model is that when the measuring cup sinks into the sewage, the counterweight 25 can increase the weight of the lower tube 2, the buffer plate 17 on the upper tube 1 can provide buoyancy, and the upper tube 1 and the lower tube 2 are limited by screws and limit grooves 24. Therefore, during the sinking process of the measuring cup, the sewage can be kept flowing through the inflow hole 23, the inflow cavity 21, the matching cavity 14 and the through hole 15 until the measuring cup sinks to the bottom, so that the sewage and flocs can stay in the inflow cavity 21, and then by pulling up the traction rope 22, the water pressure acts on the buffer plate 17, and the lower tube 2 is subjected to a continuous upward pulling force until the lower tube 2 is pressed into the upper tube 1, covering and closing the through hole 15 and the inflow hole 23, so that the sewage and flocs are kept in the measuring cup until the measuring cup is pulled out of the water to complete the bottom sample sampling of the sewage.

[0024] The above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A biochemical SV30 sampling measuring cup, characterized in that: It comprises an upper cylinder and a lower cylinder, wherein the upper cylinder is provided with an inner cavity which passes through from top to bottom, and the inner cavity is provided with a limit platform, and the limit platform divides the inner cavity into a volume cavity and a matching cavity from top to bottom, and the diameter of the matching cavity is larger than the volume cavity, and the outer wall of the upper cylinder is provided with a through hole and a lock hole which are connected to the matching cavity; the lower cylinder is provided with an inflow cavity, and a traction rope is provided at the bottom of the inflow cavity, and the outer wall of the lower cylinder is matched in the matching cavity, and the outer wall of the lower cylinder is provided with an inflow hole which is connected to the inflow cavity and an axially arranged limit groove, and the lock hole is matched with the limit groove by a screw, and a counterweight block is provided at the bottom of the lower cylinder.

2. The sampling measuring cup of biochemical SV30 according to claim 1, characterized in that: A slope is provided at the lower opening of the matching cavity, and a slope surface extending outward is provided on the outer side wall of the lower cylinder, and the slope matches the slope surface.

3. The sampling measuring cup of the biochemical SV30 according to claim 2, characterized in that: The counterweight block is in a conical structure.

4. The sampling measuring cup of the biochemical SV30 according to claim 1, characterized in that: The upper end surface edge of the upper cylinder is provided with a buffer plate extending outward, and the buffer plate is inclined downward.

5. The sampling measuring cup of biochemical SV30 according to claim 2, characterized in that: The upper opening of the volume chamber is covered with a baffle, and a plurality of through holes are arranged on the baffle, and the traction rope cooperates with the through holes.

6. The sampling measuring cup of the biochemical SV30 according to claim 1, characterized in that: A glass wall communicating with the volume cavity is also provided on the outer side wall of the upper cylinder.

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