Sewage sample multi-point sampling device

Abstract

The utility model relates to the technical field of sewage treatment, in particular to a sewage sample multi-point sampling device which comprises a sampling cylinder, a first sampling assembly and a second sampling assembly are arranged in the sampling cylinder, the first sampling assembly comprises two bearing frames which are oppositely connected in the sampling cylinder in a sliding mode, and the second sampling assembly comprises a second sampling assembly and a third sampling assembly. A bearing space is formed between the two bearing frames, and a driving assembly for driving the two bearing frames to get close to each other is arranged in the sampling cylinder; the second sampling assembly is slidably connected to a liquid storage frame in the sampling cylinder, and a liquid inlet is formed in the liquid storage frame; and a locking assembly for fixing the bearing frame is arranged on the sampling cylinder. The driving assembly drives the two bearing frames to get close to each other, when the two bearing frames get close to each other, a sample body at the bottom of sewage is collected, and meanwhile, in the downward sliding stroke of the sampling cylinder, the liquid storage frame and the sampling cylinder are driven to be intermittently conducted, so that sewage samples at different depths can be collected.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a sewage sample multi-point sampling device. Background Art

[0002] Sewage treatment is the process of purifying sewage to meet the water quality requirements for discharge into a certain water body or reuse. Sewage treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscape, medical care, and catering. It is also increasingly entering the daily lives of ordinary people. For sewage station wastewater recovery and purification treatment devices, sewage is generally collected in a sedimentation tank first and then treated after sedimentation. However, the sewage in the sedimentation tank needs to be sampled and analyzed before or during treatment to detect the components in the wastewater, and then the components in the wastewater are purified. After the treatment is completed, the treated sewage samples need to be tested and analyzed, and a sampling device will be used in this process.

[0003] In the prior art, there is a Chinese utility model patent with application number 202221811520.7, authorization announcement number CN218035853U, and invention name "A sewage sample collection device for sewage treatment". In the above patent, it includes a floating plate, a sampling mechanism and a mixing mechanism. The connecting plate is vertically fixed to the inner wall of the through hole, the reel is installed at the top of the floating plate close to the connecting plate, the guide wheel is installed at the upper end of the connecting plate, a slide is provided on the connecting plate, the sampling box is movably connected to the slide, a support frame is provided on the top of the floating plate, the micro pump is installed on the top of the inner side of the support frame, and the sampling tube is connected between the micro pump and the sampling box.

[0004] In the above patent, the sewage in various positions of the sedimentation tank can be randomly sampled by the sampling boxes movably arranged on the multiple sets of connecting plates, and then mixed by the stirring rod to obtain the mixed sample. In the prior art such as the above patent, the general sewage sampling device can only sample the surface sewage. Due to the complex internal composition of the sewage, the pollutants in different layers of sewage may be different. Sampling and testing only the surface of the sewage will reduce the accuracy of the test, which has certain shortcomings. Utility Model Content

[0005] The purpose of the utility model is to provide a sewage sample multi-point sampling device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-point sampling device for sewage samples, comprising a sampling cylinder, wherein a first sampling component and a second sampling component are arranged in the sampling cylinder for sampling sewage of different depths; the first sampling component comprises two bearing frames slidably connected to each other inside the sampling cylinder, a bearing space is formed between the two bearing frames, and a driving component for driving the two bearing frames to approach each other is arranged inside the sampling cylinder; the second sampling component is slidably connected to a liquid storage frame inside the sampling cylinder, and a liquid inlet is provided on the liquid storage frame; during the sampling operation, the driving component drives the liquid storage frame and the sampling cylinder to be intermittently connected during the stroke in which the two bearing frames are driven to approach each other; a locking component for fixing the bearing frame is arranged on the sampling cylinder.

[0007] Furthermore, the driving assembly includes protrusions fixedly connected to both sides of the inner wall of the sampling tube, each of the carrying frames is fixedly connected to a guide block, and each of the protrusions is respectively abutted against a corresponding guide block.

[0008] Furthermore, the locking assembly includes a locking block slidably connected to the sampling barrel, the locking block is slidably connected to the pulling rod on the sampling barrel through a sliding groove, and an abutment spring is arranged between the locking block and the through groove; a locking groove is opened on the sampling barrel, and the elastic force of the abutment spring drives the locking block to engage in the locking groove.

[0009] Furthermore, a guide groove is provided on the side wall of the carrying frame, and the locking block is slidably connected to the guide groove.

[0010] Furthermore, a mounting frame is slidably connected inside the sampling tube, and a return spring is arranged between the two guide blocks and the mounting frame.

[0011] Furthermore, each of the carrying frames is slidably connected to the sampling tube via a limiting member; the limiting member comprises a limiting bar fixedly connected to the carrying frame, a limiting groove is provided on the sampling tube, and the limiting bar is slidably connected in the limiting groove.

[0012] Furthermore, a sealing member is provided between the two supporting frames; the sealing member comprises a sealing ring fixedly connected to one of the supporting frames, and a sealing groove matched with the sealing ring is opened on the other supporting frame. When the sealing ring is clamped in the sealing groove, no water leakage will occur.

[0013] Furthermore, the liquid storage frame is fixedly connected to the mounting frame via a connecting plate.

[0014] Furthermore, a conducting port is provided on the sampling tube, and the conducting port is intermittently connected to the liquid inlet.

[0015] Furthermore, a sampling rod is fixedly connected to the top of the sampling cylinder.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows: the multi-point sampling device for sewage samples, through the cooperation between the sampling tube, the first sampling component, the second sampling component, the driving component, the liquid storage frame, etc., during the sampling operation, after the entire sampling device is placed at a predetermined position of the sewage, the sampling tube is pressed downward. At this moment, with the bearing frame as a reference, the sampling tube slides downward. During the downward sliding stroke of the sampling tube, the two bearing frames are driven to approach each other by the driving component. When the two bearing frames approach each other, the sample body at the bottom of the sewage will be collected, and the impurity particles at the bottom of the sewage may also be collected, which can provide a more accurate effect for sewage detection. At the same time, during the downward sliding stroke of the sampling tube, the liquid storage frame and the sampling tube are driven to be intermittently connected, which is convenient for conveying the sewage body into the liquid storage frame, so that the sewage samples of different depths can be collected to meet the work needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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 utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 The overall structural diagram provided for the embodiment of the utility model;

[0019] Figure 2 A schematic diagram of the overall top view structure provided for an embodiment of the utility model;

[0020] Figure 3 for Figure 2 Schematic diagram of the AA section structure along the middle edge;

[0021] Figure 4 A schematic diagram of the structure of the installation method of the driving unit and the first sampling component provided in an embodiment of the utility model;

[0022] Figure 5 A schematic diagram of the partial structure of the first sampling component provided in an embodiment of the utility model;

[0023] Figure 6 A schematic diagram of the structure of another state of the locking assembly provided in an embodiment of the utility model.

[0024] Explanation of the accompanying drawings: 1. Sampling cylinder; 2. Sampling rod; 3. Carrying frame; 4. Carrying space; 5. Guide block; 6. Boss; 7. Mounting frame; 8. Reset spring; 9. Sealing groove; 10. Sealing ring; 11. Locking block; 12. Pull rod; 13. Abutment spring; 14. Locking groove; 15. Guide groove; 16. Connecting plate; 17. Liquid storage frame; 18. Liquid inlet; 19. Conducting port; 20. Limiting strip. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-6 The utility model provides a technical solution: a multi-point sampling device for sewage samples, comprising a sampling tube 1, wherein a first sampling component and a second sampling component are arranged in the sampling tube 1 for sampling sewage at different depths; the first sampling component comprises two bearing frames 3 slidably connected to each other inside the sampling tube 1, a bearing space 4 is formed between the two bearing frames 3, and a driving component for driving the two bearing frames 3 to approach each other is arranged inside the sampling tube 1; the second sampling component is slidably connected to a liquid storage frame 17 inside the sampling tube 1, and a liquid inlet 18 is provided on the liquid storage frame 17; during the sampling operation, the driving component drives the liquid storage frame 17 and the sampling tube 1 to be intermittently connected during the stroke in which the two bearing frames 3 are driven to approach each other; a locking component for fixing the bearing frame 3 is arranged on the sampling tube 1.

[0027] The multi-point sampling device for sewage samples includes a sampling tube 1, in which a first sampling component and a second sampling component are arranged for sampling sewage at different depths. Since sewage has sedimentation, the first sampling component samples sewage samples at the bottom of the sewage, and the second sampling component uses samples from the middle and upper layers of the sewage. It is possible to sample sewage at different levels to meet the needs of work sampling. The first sampling component includes two bearing frames 3 that are slidably connected to the inside of the sampling tube 1 in opposite directions, and the bottom of each bearing frame 3 is in an inclined state, which is convenient for sampling and collecting sewage, and the impurity particles at the bottom of the sewage may also be collected at the same time, which can provide a more accurate effect for sewage detection. A bearing space 4 is formed between the two bearing frames 3 for the sample body sampled by the first sampling component. A driving component for driving the two bearing frames 3 to approach each other is arranged inside the sampling tube 1, which can facilitate the sampling operation of the first sampling component. The second sampling component is slidably connected to the liquid storage frame 17 inside the sampling tube 1. Specifically, there are multiple groups of liquid storage frames 17 that can be selected according to the needs of the working environment, and the effect is better. The liquid storage frame 17 is provided with a liquid inlet 18, which is convenient for liquid to be introduced into the liquid storage frame 17 for sample collection. More specifically, the driving component drives the liquid storage frame 17 and the sampling tube 1 to intermittently conduct during the travel of the two bearing frames 3 approaching each other, which is convenient for liquid to be introduced into the liquid storage frame 17. Therefore, during the sampling operation, after the entire sampling device is placed at a predetermined position of the sewage, the sampling tube 1 is pressed downward. At this moment, with the bearing frame 3 as a reference, the sampling tube 1 slides downward. During the downward sliding travel of the sampling tube 1, the two bearing frames 3 are driven by the driving component to approach each other. When the two bearing frames 3 approach each other, the sample body at the bottom of the sewage will be collected, and the impurity particles at the bottom of the sewage may also be collected, which can provide a more accurate effect for sewage detection. At the same time, during the downward sliding travel of the sampling tube 1, the liquid storage frame 17 and the sampling tube 1 are driven to intermittently conduct, which is convenient for conveying the sewage body into the liquid storage frame 17, so that the sewage samples of different depths can be collected to meet the work needs. The sampling tube 1 is provided with a locking assembly for fixing the carrying frame 3 , which can fix the state of the carrying frame 3 after the sampling operation is completed to meet the working needs.

[0028] In the embodiment provided by the utility model, the driving assembly includes protrusions 6 fixedly connected to both sides of the inner wall of the sampling tube 1, and each supporting frame 3 is fixedly connected to a guide block 5, and each protrusion 6 is respectively abutted against the corresponding guide block 5. Specifically, the protrusion 6 and the guide block 5 are both wedge-shaped blocks, so when the protrusion 6 slides downward, it will drive the guide block 5 to slide horizontally, and then can drive the two supporting frames 3 to slide horizontally to sample and collect samples.

[0029] In the embodiment provided by the utility model, the locking assembly includes a locking block 11 slidably connected to the sampling tube 1, the locking block 11 is slidably connected to the pull rod 12 on the sampling tube 1 through a sliding groove, and an abutting spring 13 is arranged between the locking block 11 and the through groove; a locking groove 14 is provided on the sampling tube 1, and the elastic force of the abutting spring 13 drives the locking block 11 to engage in the locking groove 14, so when the sampling tube 1 slides downward, it will drive the entire locking assembly to slide downward, and when the locking block 11 slides toward one side of the locking groove 14 on the sampling tube 1, the elastic force of the abutting spring 13 drives the locking block 11 to engage in the locking groove 14, at this moment, the two bearing frames 3 are just completely closed to each other, and the sample body at the bottom of the sewage is collected. At this moment, when the locking block 11 is engaged in the locking groove 14, the sampling tube 1 cannot move relative to the bearing frame 3, so at this moment, the bearing frame 3 is in a fixed state, which meets the working needs. When it is necessary to take out the sample in the carrying space 4 , the pulling rod 12 is driven to slide in the opposite direction, and the pulling rod 12 drives the locking block 11 to slide, so that the locking block 11 slides out of the locking groove 14 .

[0030] In the embodiment provided by the utility model, a guide groove 15 is opened on the side wall of the carrying frame 3, and the locking block 11 is slidably connected to the guide groove 15, so as to further improve the stability of the locking block 11 when sliding.

[0031] In the embodiment provided by the utility model, a mounting frame 7 is slidably connected inside the sampling tube 1, and a reset spring 8 is arranged between the two guide blocks 5 and the mounting frame 7. Therefore, in the absence of external force, the elastic force of the reset spring 8 drives the two guide blocks 5 away from the mounting frame 7, and can drive the two bearing frames 3 away from each other, so as to facilitate the reuse of the sampling device. More specifically, a limited telescopic rod is arranged between each guide block 5 and the mounting frame 7, so that the mounting frame 7 and the two bearing frames 3 can form a whole, further improving the stability of the mounting frame 7 and the guide blocks 5 when sliding. When the sampling tube 1 slides downward, the mounting frame 7 is in a stationary state.

[0032] In the embodiment provided by the utility model, each supporting frame 3 is slidably connected to the sampling tube 1 through a limiting member; the limiting member includes a limiting bar 20 fixedly connected to the supporting frame 3, and a limiting groove is provided on the sampling tube 1, and the limiting bar 20 is slidably connected in the limiting groove, thereby further improving the stability of the supporting frame 3 when sliding.

[0033] In the embodiment provided by the utility model, a sealing member is arranged between the two supporting frames 3; the sealing member includes a sealing ring 10 fixedly connected to one of the supporting frames 3, and a sealing groove 9 adapted to the sealing ring 10 is opened on the other supporting frame 3. When the sealing ring 10 is clamped in the sealing groove 9, water leakage will not occur, thereby meeting the working requirements.

[0034] In the embodiment provided by the utility model, the liquid storage frame 17 is fixedly connected to the mounting frame 7 via the connecting plate 16, so that the stability of the liquid storage frame 17 when sliding can be improved. When the sampling tube 1 slides downward, the liquid storage frame 17 is in a stationary state.

[0035] In the embodiment provided by the utility model, a conducting port 19 is provided on the sampling tube 1, and the conducting port 19 is intermittently connected with the liquid inlet 18. When the sampling tube 1 slides downward, when the conducting port 19 is connected with the liquid inlet 18, the sewage sample will be injected into the liquid storage frame 17. When the conducting port 19 is not connected with the liquid inlet 18, the sewage sample will be retained in the liquid storage frame 17. When it is necessary to take out the sewage sample in the liquid storage frame 17, the conducting port 19 is driven to be connected with the liquid inlet 18, and the sewage sample can be drawn out.

[0036] In the embodiment provided by the utility model, a sampling rod 2 is fixedly connected to the top of the sampling tube 1 to facilitate driving the sampling tube 1 to slide vertically.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sewage sample multi-point sampling device, comprising a sampling tube (1), characterized in that: The sampling cylinder (1) is provided with a first sampling component and a second sampling component for sampling sewage at different depths; The first sampling assembly comprises two bearing frames (3) which are connected to the inside of the sampling cylinder (1) in a sliding manner towards each other, a bearing space (4) is formed between the two bearing frames (3), and a driving assembly for driving the two bearing frames (3) to move closer to each other is arranged inside the sampling cylinder (1); The second sampling component is slidably connected to a liquid storage frame (17) inside the sampling cylinder (1), and a liquid inlet (18) is provided on the liquid storage frame (17); During the sampling operation, the driving component drives the two carrying frames (3) to approach each other so as to drive the liquid storage frame (17) and the sampling cylinder (1) to be intermittently connected; The sampling cylinder (1) is provided with a locking assembly for fixing the carrying frame (3).

2. A sewage sample multi-point sampling device according to claim 1, characterized in that: The driving assembly comprises protrusions (6) fixedly connected to both sides of the inner wall of the sampling tube (1), each of the carrying frames (3) is fixedly connected to a guide block (5), and each of the protrusions (6) is respectively in contact with a corresponding guide block (5).

3. A sewage sample multi-point sampling device according to claim 2, characterized in that: The locking assembly comprises a locking block (11) slidably connected to the sampling cylinder (1); the locking block (11) is slidably connected to a pulling rod (12) on the sampling cylinder (1) via a sliding groove; an abutment spring (13) is provided between the locking block (11) and the through groove; The sampling tube (1) is provided with a locking groove (14), and the elastic force of the abutting spring (13) drives the locking block (11) to engage in the locking groove (14).

4. A sewage sample multi-point sampling device according to claim 3, characterized in that: A guide groove (15) is provided on the side wall of the carrying frame (3), and the locking block (11) is slidably connected to the guide groove (15).

5. The multi-point sampling device for sewage samples according to claim 2, characterized in that: A mounting frame (7) is slidably connected inside the sampling tube (1), and a return spring (8) is arranged between the two guide blocks (5) and the mounting frame (7).

6. A sewage sample multi-point sampling device according to claim 1, characterized in that: Each of the carrying frames (3) is slidably connected to the sampling tube (1) via a limiting member; The limiting member comprises a limiting strip (20) fixedly connected to the carrying frame (3); a limiting groove is provided on the sampling tube (1), and the limiting strip (20) is slidably connected in the limiting groove.

7. A sewage sample multi-point sampling device according to claim 6, characterized in that: A sealing member is provided between the two carrying frames (3); The sealing member comprises a sealing ring (10) fixedly connected to one of the supporting frames (3); a sealing groove (9) adapted to the sealing ring (10) is provided on the other supporting frame (3); when the sealing ring (10) is snap-fitted into the sealing groove (9), no water leakage occurs.

8. The multi-point sampling device for sewage samples according to claim 5, characterized in that: The liquid storage frame (17) is fixedly connected to the mounting frame (7) via a connecting plate (16).

9. The multi-point sampling device for sewage samples according to claim 1, characterized in that: The sampling tube (1) is provided with a conducting port (19), and the conducting port (19) is intermittently connected to the liquid inlet (18).

10. The sewage sample multi-point sampling device according to claim 1, characterized in that: A sampling rod (2) is fixedly connected to the top of the sampling cylinder (1).

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